FN ISI Export FormatVR 1.0PT JAU Gourc, JP Ramirez, RRAF Gourc, J. P. Reyes Ramirez, R.TI Dynamics-based interpretation of the interface friction test at the inclined planeSO GEOSYNTHETICS INTERNATIONALLA EnglishDT ArticleDE geosynthetics; inclined plane test; interface; dynamic; friction; liner system; slopesID GEOSYNTHETIC INTERFACESAB The inclined plane test is used to determine either soil-geosynthetic or geosynthetic geosynthetic interface properties, especially in cases where the stress normal to the interface is small. The design of sloped cap covers for landfill sites or along the banks of reservoirs and canals necessitates this type of test. The interface friction test, when performed in accordance with the current European test standard, yields only the interface friction angle. In this paper, the potential for drawing considerably greater information from the test is demonstrated. This procedure requires the interpretation of an entire dynamics phase, in particular the phase during which the upper box is engaged in uniformly accelerated movement. Two new parameters are also defined, called the angles of static friction and dynamic friction.C1 Univ Grenoble 1, Lirigm, F-38041 Grenoble 9, France. Fdn Univ Amer, Dept Ingn Civil, Puebla, Mexico.RP Gourc, JP, Univ Grenoble 1, Lirigm, BP53, F-38041 Grenoble 9, France.EM gourc@ujf-grenoble.fr roreyes@mail.udlap.mxCR *PREN ISO, 129572 PREN ISO EU 2 BRIANCON L, 2002, GEOTEXT GEOMEMBRANES, V20, P147 IZGIN M, 1998, GEOTEXT GEOMEMBRANES, V16, P207 LALARAKOTOSON S, 1999, GEOTECH TEST J, V22, P284 LING HI, 2002, GEOSYNTH INT, V9, P373 LOPES PC, GEOSYNTHETICS INT, V8, P327 PALMEIRA EM, 2002, GEOSYNTH INT, V9, P149 PURWANTO E, 1996, THESIS U J FOURIER G RAMIREZ RR, 2003, GEOSYNTH INT, V10, P165 WASTI Y, 2001, GEOTEXT GEOMEMBRANES, V19, P45NR 10TC 0PU THOMAS TELFORD PUBLISHINGPI LONDONPA THOMAS TELFORD HOUSE, 1 HERON QUAY, LONDON E14 4JD, ENGLANDSN 1072-6349J9 GEOSYNTH INTJI Geosynth. Int.PD DECPY 2004VL 11IS 6BP 439EP 454PG 16SC Engineering, Geological; Geosciences, Multidisciplinary; Materials Science, MultidisciplinaryGA 079GPUT ISI:000240164200003ERPT JAU Lavis, JN Posada, FB Haines, A Osei, ETI Use of research to inform public policymakingSO LANCETLA EnglishDT ArticleID HEALTH-SYSTEMS; KNOWLEDGE; CARE; IMPLEMENTATION; INTERVENTIONS; GAPAB To improve health and reduce health inequalities, public policymakers need to find the best solutions to the most burdensome health problems, the best ways to fit these solutions into complex and often overstretched and underresourced health systems, and the best ways to bring about the desired changes in health systems. Systematic reviews can inform public policymaking by providing research-based answers to these questions. Public policymakers can encourage more informed policymaking by asking to see systematic reviews on priority issues, commissioning reviews when none exists, and placing more value on such work in their deliberations and in their interactions with stakeholders. Donors and international agencies can encourage more informed public policymaking by supporting national and regional efforts to undertake reviews and assess their local applicability, and by supporting regional or worldwide efforts to coordinate review and assessment processes.C1 McMaster Univ, Hlth Sci Ctr, Ctr Hlth Econ & Policy Anal, Dept Clin Epidemiol & Biostat, Hamilton, ON L8N 3Z5, Canada. McMaster Univ, Dept Polit Sci, Hamilton, ON L8N 3Z5, Canada. Minist Hlth, Gen Coordinat Natl Inst Hlth, Mexico City, DF, Mexico. London Sch Hyg & Trop Med, London WC1, England.RP Lavis, JN, McMaster Univ, Hlth Sci Ctr, Ctr Hlth Econ & Policy Anal, Dept Clin Epidemiol & Biostat, Room 2D3,1200 Main St W, Hamilton, ON L8N 3Z5, Canada.EM lavisj@mcmaster.caCR *UN DEV PROGR, MILL DEV GOALS ALLEN C, 2003, P 11 COCHR C OCT 26, P44 ATKINS D, 2004, BRIT MED J, V328, P1490 BERWICK DM, 2003, JAMA-J AM MED ASSOC, V289, P1969 BLACK RE, 2003, LANCET, V361, P2226 BRIGGS CJ, 2001, COCHRANE DB SYST REV, V4, P3318 CLAESON M, 2003, LANCET, V362, P323 DANS A, 2004, USERS GUIDE INTERACT DENIS JL, 2001, ACAD MANAGE J, V44, P809 FONTAINE O, 2000, COCHRANE DB SYST REV, V2, P1264 GARNER P, 1998, BRIT MED J, V317, P531 GRIMSHAW JM, 2001, MED CARE S, V39, P112 GROL R, 2003, LANCET, V362, P1225 GWATKIN DR, 2004, LANCET, V364, P1273 HAHN S, 2002, COCHRANE DB SYST REV, V1 HAINES A, 2004, B WORLD HEALTH ORGAN, V82, P724 HANNEY S, 2003, HLTH RES POLICY SYST, V1, P2 HAYNES B, 1999, BRIT MED J, V319, P652 HONGORO C, 2004, LANCET, V364, P1451 ILES V, 2001, MANAGING CHANGE NHS JONES G, 2003, LANCET, V362, P65 LAVIS JN, 2002, MILBANK Q, V80, P125 LAVIS JN, 2003, MILBANK Q, V81, P221 LENGELER C, 2004, COCHRANE DB SYST REV, V2 MAHER D, WHAT IS DOTS GUIDE U MASON J, 2001, JAMA-J AM MED ASSOC, V286, P2988 MCAULEY LM, 2003, BRIT MED J, V327, P106 PALMER N, 2004, LANCET, V364, P1365 TRAVIS P, 2004, LANCET, V364, P900 VICTORA CG, 2004, LANCET, V364, P1541 VOLMINK J, 2003, COCHRANE DB SYST REV, V1NR 31TC 22PU LANCET LTDPI LONDONPA 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLANDSN 0140-6736J9 LANCETJI LancetPD OCT 30PY 2004VL 364IS 9445BP 1615EP 1621PG 7SC Medicine, General & InternalGA 866IQUT ISI:000224767600029ERPT JAU Koepke, R Warner, M Petreas, M Cabria, A Danis, R Hernandez-Avila, M Eskenazi, BTI Serum DDT and DDE levels in pregnant women of chiapas, MexicoSO ARCHIVES OF ENVIRONMENTAL HEALTHLA EnglishDT ArticleDE DDT; DDE; dichlorodiphenyltricliloroethane; dichlorodiphenyldichloroethylene; exposure assessment; pregnant women; serumID ORGANOCHLORINE PESTICIDE LEVELS; FATTY-ACID CONJUGATE; MATERNAL BLOOD-SERUM; ADIPOSE-TISSUE; BREAST-CANCER; SPONTANEOUS-ABORTION; RECEPTOR VARIABLES; MALARIA CONTROL; PUBLIC-HEALTH; EXPOSUREAB The authors measured the main ingredients of technical DDT (1,1,1-trichloro-2,2-bis(p-chlorophenyl [p,p'-DDT]) and its principal metabolite, 1,1-dichloro-2,2-bis (p-chlorophenyl)ethylene [p,p'-DDE]) in serum collected from 52 pregnant women in Tapachula, Chiapas, Mexico in 1998. The median lipid-adjusted serum levels for the women were 676 ng/g p,p'-DDT (range: 56-23,169 ng/g) and 4,843 ng/g p,p'-DDE (range: 113-41,964 ng/g). In regression analysis, serum DDT and DDE increased with age (test for trend, p = .022) but decreased with total lactation (test for trend, p < .001). Residence in a house that had ever been sprayed for malaria control was also related to serum DDT and DDE. This study provides evidence of high-level exposure to DDT and DDE among pregnant women living in Chiapas, Mexico, despite countrywide restrictions on its use at the time.C1 Univ Calif Berkeley, Sch Publ Hlth, Berkeley, CA 94720 USA. Calif Dept Tox Subst Control, Hazardous Mat Lab, Berkeley, CA USA. Int Womens Hlth Coalit, New York, NY USA. Natl Inst Publ Hlth, Ctr Invest Populat Hlth, Cuernavaca, Morelos, Mexico.RP Eskenazi, B, Univ Calif Berkeley, Sch Publ Hlth, 140 Warren Hall, Berkeley, CA 94720 USA.EM eskenazi@berkeley.eduCR *ATDSR, 2002, TOX PROF DDT DDE DDD *CAL DEP TOX SUBST, 2003, PREP AN BLOOD SER PC *CDC, 2003, 2 NAT REP HUM EXP EN *IPCS, 1979, ENV HLTH CRIT, V9 *STAT C, 2001, STAT STAT SOFTW REL *WHO, 2005, ROLL BACK MAL AHLBORG UG, 1995, CRIT REV TOXICOL, V25, P463 AKINS JR, 1989, CLIN CHIM ACTA, V184, P219 AYOTTE P, 2001, EPIDEMIOLOGY, V12, P366 BHATIA R, 2005, ENVIRON HEALTH PERSP, V113, P220 CHANON KE, 2003, INT J HYG ENVIR HEAL, V206, P387 COHN BA, 2003, LANCET, V361, P2205 ELVIA LF, 2000, J EXPO ANAL ENV EPID, V10, P394 ERIKSSON P, 1990, BRAIN RES, V514, P141 ERIKSSON P, 1990, NEUROTOXICOLOGY, V11, P345 FABRO S, 1984, AM J OBSTET GYNECOL, V148, P929 GALVANPORTILLO M, 2002, CAD SAUDE PUBLICA, V18, P447 HART MM, 1971, ARCH INT PHARMACOD T, V192, P286 HUBER PJ, 1967, P 5 BERK S MATH STAT, P221 JAGA K, 2003, INT J OCCUP MED ENV, V16, P7 JOHANSSON U, 1995, EUR J PHARM-ENVIRON, V293, P159 JOHANSSON U, 1996, ENVIRON TOXICOL PHAR, V2, P307 KARMAUS W, 2001, PEDIATR RES, V50, P331 KELCE WR, 1995, NATURE, V375, P581 KORRICK SA, 2001, ANN EPIDEMIOL, V11, P491 LOEFFLER IK, 1999, TOXICOL APPL PHARM, V154, P28 LONGNECKER MP, 1997, ANNU REV PUBL HEALTH, V18, P211 LONGNECKER MP, 2001, LANCET, V358, P110 LOPEZCARRILLO L, 1996, ENVIRON HEALTH PERSP, V104, P584 LOPEZCARRILLO L, 1997, CANCER RES, V57, P3728 LOPEZCARRILLO L, 1999, ENVIRON RES, V81, P142 LOPEZCARRILLO L, 2001, ENVIRON RES, V87, P131 MORGAN DP, 1971, ARCH ENVIRON HEALTH, V22, P301 ROMIEU I, 2000, AM J EPIDEMIOL, V152, P363 SAXENA MC, 1981, J ANAL TOXICOL, V5, P6 SMITH AG, 1991, HDB PESTICIDE TOXICO, P731 TORRESARREOLA L, 1999, ARCH ENVIRON HEALTH, V54, P124 TORRESARREOLA L, 2003, ANN EPIDEMIOL, V13, P158 TURUSOV V, 2002, ENVIRON HEALTH PERSP, V110, P125 WALISZEWSKI SM, 2000, B ENVIRON CONTAM TOX, V64, P8 WALISZEWSKI SM, 2001, ARCH ENVIRON CON TOX, V40, P432 WALISZEWSKI SM, 2002, B ENVIRON CONTAM TOX, V68, P324 YANEZ L, 2002, ENVIRON RES, V88, P174NR 43TC 1PU HELDREF PUBLICATIONSPI WASHINGTONPA 1319 EIGHTEENTH ST NW, WASHINGTON, DC 20036-1802 USASN 0003-9896J9 ARCH ENVIRON HEALTHJI Arch. Environ. HealthPD NOVPY 2004VL 59IS 11BP 559EP 565PG 7SC Environmental Sciences; Public, Environmental & Occupational HealthGA 026JHUT ISI:000236334700004ERPT JAU Espinola-Zavaleta, N Alexanderson, E Attie, F Castellanos, LM Duenas, R Rosas, M Keirns, CTI Right ventricular function and ventricular perfusion defects in adults with congenitally corrected transposition: correlation of echocardiography and nuclear medicineSO CARDIOLOGY IN THE YOUNGLA EnglishDT ArticleDE corrected transposition; contrast echocardiography; right ventricular perfusionID MYOCARDIAL CONTRAST ECHOCARDIOGRAPHY; TWO-DIMENSIONAL ECHOCARDIOGRAPHY; GREAT-ARTERIES; PERFORMANCE INDEX; TRICUSPID-VALVE; DISEASE; DYSFUNCTION; DOPPLERAB We undertook our study in order to evaluate right ventricular function and perfusion by conventional and contrast echocardiography in adults with congenitally corrected transposition who had not undergone cardiac surgery, comparing the echocardiographic findings with those obtained using equilibrium radionuclide ventriculography and gated single-photon emission computed tomography with Technetiumc-99 m sestamibi. We discovered severe tricuspid regurgitation in 8 patients (61%). Right ventricular ejection fraction, as calculated by nuclear medicine, had a correlation of 0.67 (p = 0.059) with area fractional shortening and 0.84 (p = 0.01) with ejection fraction calculated by the method depending on descent of the tricuspid ring. All patients with severe tricuspid regurgitation also had right ventricular dysfunction. Of these 8 patients, 7 had persistent perfusion defects, while 6 also had ischemic perfusion defects. Echo contrast had a high sensitivity, at 91%, and also specificity and positive predictive value, both at 100%, for persistent defects, and a negative predictive value of 66% compared to methods depending on nuclear medicine. The sensitivity of contrast echocardiography for detection of ischemic defects was 6696, the specificity 10096, the positive predictive value 100916, and the negative predictive value 7796 compared to the methods involving nuclear medicine. The method depending on descent of the tricuspid ring had the highest correlation with equilibrium radionuclide ventriculography in evaluation of right ventricular function in patients with congenitally corrected transposition. We conclude that contrast echocardiography is extremely valuable when assessing right ventricular myocardial perfusion, having high sensitivity and specificity for detecting persistent defects, although sensitivity was less for detection of ischemic defects than that of gated single-photon emission computed tomography with Technetium-99 m Sestamibi. Persistent and ischemic perfusion defects, together with chronic volume overload from tricuspid regurgitation, are the determining factors of right ventricular dysfunction.C1 Inst Nacl Cardiol Ignacio Chazez, Mexico City 14080, DF, Mexico. Natl Autonomous Univ Mexico, Fac Med, PET Cyclotron Unity, Mexico City 04510, DF, Mexico.RP Espinola-Zavaleta, N, Inst Nacl Cardiol Ignacio Chazez, JuanBafiano 1 Col Secc XVI, Mexico City 14080, DF, Mexico.EM niesza2001@hotmail.comCR BECKER AE, 1971, ARCH PATHOL, V91, P167 BENSON LN, 1986, AM J CARDIOL, V58, P319 BERGER HJ, 1978, AM J CARDIOL, V41, P897 CONNELLY MS, 1996, J AM COLL CARDIOL, V27, P1238 DODGEKHATAMI A, 2002, ANN THORAC SURG, V73, P1759 EIDEM BW, 2000, AM J CARDIOL, V86, P654 GRAHAM TP, 1983, AM J CARDIOL, V51, P244 GRAHAM TP, 2000, J AM COLL CARDIOL, V36, P255 HORNUNG TS, 1998, HEART, V80, P322 HORNUNG TS, 1999, AM J CARDIOL, V84, P1116 KAUL S, 1984, AM HEART J, V107, P526 KAUL S, 1997, CIRCULATION, V96, P3745 KAUL S, 1997, CIRCULATION, V96, P785 LOSEKOOT TG, 1987, PAEDIAT CARDIOLOGY, P867 LUBISZEWSKA B, 2000, J AM COLL CARDIOL, V36, P1365 MIYATAKE K, 1982, CIRCULATION, V66, P777 PETERSON RJ, 1988, J THORAC CARDIOV SUR, V96, P227 PRIETO LR, 1998, CIRCULATION, V98, P997 SAKAI K, 1983, J CARDIOGR, V13, P33 SECKNUS MA, 1997, J AM COLL CARDIOL, V29, P1234 TEI C, 1997, J AM SOC ECHOCARDIOG, V10, P169NR 21TC 1PU GREENWICH MEDICAL MEDIA LTDPI LONDONPA 137 EUSTON RD, 4TH FLOOR, LONDON NW1 2AA, ENGLANDSN 1047-9511J9 CARDIOL YOUNGJI Cardiol. YoungPD APRPY 2004VL 14IS 2BP 174EP 181PG 8SC Cardiac & Cardiovascular Systems; PediatricsGA 019QXUT ISI:000235852900009ERPT JAU Cisneros-Molina, JLTI A note on torsion in K-3 of the real numbersSO BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANALA EnglishDT ArticleDE K-theory of real numbers; homology spheres; bloch group; dilogarithm identitiesID ALGEBRAIC K-THEORY; HOMOLOGYAB Following [9], we prove that every torsion element in K-3(R) and in its indecomposable part K-3(ind)(R) can be constructed using Brieskorn homology 3-spheres endowed with a representation of its fundamental group in SL4(R). Also, using the generators of the Bloch group B(R) constructed via the dilogarithm identities in [7], we give an explicit map Kind (R) tor -> B(R)(tor).C1 UNAM, Inst Matemat, Cuernavaca 62210, Morelos, Mexico.RP Cisneros-Molina, JL, UNAM, Inst Matemat, Av Univ S-N, Cuernavaca 62210, Morelos, Mexico.EM jlcm@matcuer.unam.mxCR ATIYAH MF, 1975, MATH PROC C, V78, P405 BASS H, 1973, LECT NOTES MATH, V342, P349 BEILINSON A, 1980, FUNCTIONAL ANAL ITS, V14, P116 BOREL A, 1974, ANN SCI ECOLE NORM S, V7, P235 BROWDER W, 1977, LECT NOTES MATH, V657, P40 CISNEROSMOLINA JL, 2001, GEOMETRIAE DEDICATA, V84, P207 FRENKEL E, 1995, J AM MATH SOC, V8, P629 HOOD CE, 1987, K-THEORY, V1, P361 JONES JDS, 1994, TOPOLOGY, V34, P929 KAROUBI M, 1987, SOC MATH FRANCE, V149 KAROUBI M, 1990, K-THEORY, V4, P55 KERVAIRE MA, 1969, T AM MATH SOC, V144, P67 KIRBY RC, 1977, P GEORG TOP C ATH GO, P113 KIRILLOV AN, 1986, J SOVIET MATH, V35, P2627 LEVINE M, 1989, ANN SCI ECOLE NORM S, V22, P255 LEWIN L, 1958, DILOGARITHMS ASS FUN MERKURJEV AS, 1991, MATH USSR IZV, V36, P541 MILNOR J, 1970, INVENT MATH, V9, P318 SAH CH, 1989, J PURE APPL ALGEBRA, V56, P269 SUSLIN AA, 1984, J PURE APPL ALGEBRA, V34, P301 SUSLIN AA, 1991, P STEKLOV I MATH, V4, P217NR 21TC 0PU SOCIEDAD MATEMATICA MEXICANAPI MEXICOPA APDO POSTAL 14-170, MEXICO 07000, MEXICOSN 1405-213XJ9 BOL SOC MAT MEXJI BOL. SOC. MAT. MEX.PY 2004VL 10SI Sp. Iss. SIBP 117EP 128PG 12SC MathematicsGA 019FAUT ISI:000235819800009ERPT JAU Eudave-Munoz, M Neumann-Coto, MTI Acylindrical surfaces in 3-manifolds and knot complementsSO BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANALA EnglishDT ArticleDE acylindrical surface; quasi-Fuchsian surface; incompressible surface; triangulations; Heegaard genus; tangles; tunnel numberID INCOMPRESSIBLE SURFACES; LINK COMPLEMENTS; BRANCHED SURFACES; MANIFOLDSAB We consider closed acylindrical surfaces in 3-manifolds and in knot and link complements, and show that the genus of these surfaces is bounded linearly by the number of tetrahedra in a triangulation of the manifold and by the number of rational (or alternating) tangles in a projection of a link (or knot). For each g we find knots with tunnel number 2 and manifolds of Heegaard genus 3 containing acylindrical surfaces of genus g. Finally, we construct 3-bridge knots containing quasi-Fuchsian surfaces of unbounded genus, and use them to find manifolds of Heegaard genus 2 and homology spheres of Heegaard genus 3 containing infinitely many incompressible surfaces.C1 UNAM, Inst Matemat, Mexico City 04510, DF, Mexico.RP Eudave-Munoz, M, UNAM, Inst Matemat, Ciudad Univ, Mexico City 04510, DF, Mexico.EM mario@matem.unam.mx max@matem.unam.mxCR ADAMS CC, 1992, TOPOL APPL, V46, P151 ADAMS CC, 1993, J AUST MATH SOC A, V55, P116 AGOL I, ARXIVMATHGT9906182 BOILEAU M, ARXIVMATHGT0111327 EUDAVEMUNOZ M, 2000, BOL SOC MAT MEX, V6, P263 FINKELSTEIN E, 1999, TOPOL APPL, V96, P153 FLOYD W, 1984, TOPOLOGY, V23, P117 GORDON C, 1995, COMMUN ANAL GEOM, V3, P597 GORDON CM, 1984, PURE APPL MATH, V112, P139 GORDON CM, 1987, MATH PROC CAMBRIDGE, V102, P97 GORDON CM, 2000, TOPOLOGY, V39, P531 HASS J, 1995, MICH MATH J, P357 HATCHER A, 1985, INVENT MATH, V79, P225 HEMPEL J, 2001, TOPOLOGY, V40, P631 ICHIHARA K, 2000, J AUST MATH SOC A 3, V68, P379 LACKENBY M, 2004, P LOND MATH SOC 1, V88, P204 LYON H, 1971, T AM MATH SOC, V157, P53 MENASCO W, 1984, TOPOLOGY, V23, P37 MENASCO W, 1992, TOPOLOGY 90, P215 OERTEL U, 1984, INVENT MATH, V76, P385 THURSTON W, 1982, B AM MATH SOC, V6, P357 WU YQ, 1992, TOPOLOGY, V31, P271NR 22TC 0PU SOCIEDAD MATEMATICA MEXICANAPI MEXICOPA APDO POSTAL 14-170, MEXICO 07000, MEXICOSN 1405-213XJ9 BOL SOC MAT MEXJI BOL. SOC. MAT. MEX.PY 2004VL 10SI Sp. Iss. SIBP 147EP 169PG 23SC MathematicsGA 019FAUT ISI:000235819800011ERPT JAU Gomez-Larranaga, JC Heil, W Gonzalez-Acuna, FTI 3-manifolds that are covered by two open bundlesSO BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANALA EnglishDT ArticleDE Lusternik-Schnirelmann categoryAB We obtain a list of all closed 3-manifolds that are covered by two open submanifolds, each homeomorphic to an open disk bundle over S-1, or an open I-bundle over the 2-sphere, the projective plane, the torus, or the Klein bottle.C1 Ctr Invest Matemat, Guanajuato 36000, Mexico. Florida State Univ, Dept Math, Tallahassee, FL 32306 USA. UNAM, Inst Matemat, Mexico City 04510, DF, Mexico.RP Gomez-Larranaga, JC, Ctr Invest Matemat, Apdo Postal 402, Guanajuato 36000, Mexico.EM jcarlos@cimat.mx heil@zeno.math.fsu.edu fico@math.unam.mxCR CLAPP M, 1986, T AM MATH SOC, V298, P603 GOMEZLARRANAGA JC, 1987, MANUSCRIPTA MATH, V59, P325 GOMEZLARRANAGA JC, 1992, TOPOLOGY, V31, P791 HATCHER A, LECT NOTES HEIL W, 1974, YOKOHAMA MATH J, V23, P135 HEIL W, 1992, PHILOS SOC, V112, P255 HEMPEL J, 1969, FUND MATH, V64, P99 HEMPEL J, 1976, ANN MATH STUD, V86 KHIMSHIASHVILI G, 2000, B GEORGIAN ACAD SCI, V164, P3 LICKORISH WBR, 1963, P CAMBRIDGE PHILOS S, V59, P307 MORIMOTO K, 1985, KOBE J MATH, V2, P37 TAKENS F, 1968, INVENT MATH, V6, P197 TAO Y, 1962, OSAKA MATH J, V14, P145 TOLLEFSON JL, 1973, T AM MATH SOC, V183, P139NR 14TC 0PU SOCIEDAD MATEMATICA MEXICANAPI MEXICOPA APDO POSTAL 14-170, MEXICO 07000, MEXICOSN 1405-213XJ9 BOL SOC MAT MEXJI BOL. SOC. MAT. MEX.PY 2004VL 10SI Sp. Iss. SIBP 171EP 179PG 9SC MathematicsGA 019FAUT ISI:000235819800012ERPT JAU Moreno, GTI Hopf construction map in higher dimensionsSO BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANALA EnglishDT ArticleDE Cayley-Dickson algebras; alternative algebras; zero divisors; flexible algebra; normed algebraID CAYLEY-DICKSON ALGEBRASAB We study the zero set of the Hopf construction map F-n : A(n) x A(n) -> A(n) x A(0) given by F-n(x, y) = (2xy, parallel to y parallel to(2) - parallel to x parallel to(2)) for n > 4, where A(n) is the Cayley-Dickson algebra of dimension 2(n) on R.C1 IPN, Dept Matemat, Mexico City 07000, DF, Mexico.RP Moreno, G, IPN, Dept Matemat, Apdo Postal 14-740, Mexico City 07000, DF, Mexico.EM gmoreno@math.cinvestav.mxCR ADEM J, 1975, B SOC MAT MEX, V20, P59 COHEN F, 1989, LECT NOTES MATH, V1139, P11 COHEN FR, 1992, B SOC MAT MEX, V37, P55 DICKSON LE, 1919, ANN MATH US, V20, P155 EAKIN P, 1990, J ALGEBRA, V129, P263 KHALIL SH, 1997, B SOC LODZ, V48, P117 LAM KY, 1967, TOPOLOGY, V6, P423 MORENO G, ALTERNATIVE ELEMENTS MORENO G, 1998, BOL SOC MAT MEX, V4, P13 SCHAFER RD, 1954, AM J MATH, V76, P435 WHITEHEAD G, 1978, GRAD TEXTS MATH, V61NR 11TC 0PU SOCIEDAD MATEMATICA MEXICANAPI MEXICOPA APDO POSTAL 14-170, MEXICO 07000, MEXICOSN 1405-213XJ9 BOL SOC MAT MEXJI BOL. SOC. MAT. MEX.PY 2004VL 10SI Sp. Iss. SIBP 383EP 397PG 15SC MathematicsGA 019FAUT ISI:000235819800025ERPT JAU Nunez, VTI A note on 2-universal linksSO BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANALA EnglishDT ArticleDE universal link; 3-manifoldAB We show that no Montesinos knot (link) can be 2-universal.C1 CIMAT, Guadalajara 36000, Jalisco, Mexico.RP Nunez, V, CIMAT, Apdo Postal 402, Guadalajara 36000, Jalisco, Mexico.EM victor@cimat.mxCR BONAHON F, 1985, LONDON MATH SOC LECT, V95, P19 GONZALEZACUNA F, 1969, THESIS PRINCETON U HEMPEL J, 1990, TOPOLOGY, V29, P247 HILDEN HM, 2004, BOL SOC MAT MEX, V10, P239 MONTESINOS JM, 1973, B SOC MAT MEX, V18, P1 NUNEZ V, 2004, BOL SOC MAT MEX, V10, P423NR 6TC 0PU SOCIEDAD MATEMATICA MEXICANAPI MEXICOPA APDO POSTAL 14-170, MEXICO 07000, MEXICOSN 1405-213XJ9 BOL SOC MAT MEXJI BOL. SOC. MAT. MEX.PY 2004VL 10SI Sp. Iss. SIBP 419EP 422PG 4SC MathematicsGA 019FAUT ISI:000235819800027ERPT JAU Nunez, V Rodriguez-Viorato, JTI Dihedral coverings of Montesinos knotsSO BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANALA EnglishDT ArticleDE dihedral covering; universal link; Montesinos knot; Seifert manifoldID UNIVERSALAB We determine the family of Montesinos knots k which have the 3-sphere as a dihedral quotient S-3 -> (S-3, k), and we find also 'dihedral-like' coverings of certain Montesinos knots. Through the understanding of the singular set of these coverings, we conclude the universality of many Montesinos knots.C1 CIMAT, Guanajuato 36000, Mexico.RP Nunez, V, CIMAT, Apdo Postal 420, Guanajuato 36000, Mexico.EM victor@cimat.mx jesusr@cimat.mxCR *GAP GROUP, 2002, GAP GROUPS ALG PROGR BURDE G, 1971, CAN J MATH, V23, P84 FOX RH, 1961, P U GEORG I, P120 GONZALEZACUNA F, 1969, THESIS PRINCETON U HATCHER A, 1989, TOPOLOGY, V28, P453 HILDEN HM, 1985, TOPOLOGY, V24, P499 LYNDON R, 1983, EUROPEAN J COMBIN, V4, P279 MONTESINOS J, 1974, COLLECT MATH, V25, P145 MONTESINOS JM, 1973, B SOC MAT MEX, V18, P1 NEUMANN WD, 1978, LECT NOTES MATH, V664, P163 NUNEZ V, 1999, TOPOL APPL, V98, P241 NUNEZ V, 2003, TOPOL APPL, V130, P1 RODRIGUEZ J, SOME UNIVERSAL PRETZ THURSTON W, 1982, UNIVERSAL LINKS UCHIDA Y, 1991, KOBE J MATH, V8, P55 UCHIDA Y, 1992, KNOTS 90, P241 ZIESCHANG H, 1984, LECT NOTES MATH, V1060, P378NR 17TC 1PU SOCIEDAD MATEMATICA MEXICANAPI MEXICOPA APDO POSTAL 14-170, MEXICO 07000, MEXICOSN 1405-213XJ9 BOL SOC MAT MEXJI BOL. SOC. MAT. MEX.PY 2004VL 10SI Sp. Iss. SIBP 423EP 449PG 27SC MathematicsGA 019FAUT ISI:000235819800028ERPT JAU Ramirez-Losada, E Valdez-Sanchez, LGTI Crosscap number two knots in S-3 with (1,1) decompositionsSO BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANALA EnglishDT ArticleDE crosscap number two knot; tunnel number one knot; (1,1)-decompositionID INCOMPRESSIBLE SURFACES; GENUS ONEAB M. Scharlemann has recently proved that any genus one tunnel number one knot is either a satellite or 2-bridge knot, as conjectured by H. Goda and M. Teragaito; all such knots admit a (1,1) decomposition. In this paper we give a classification of the family of (1,1) knots in S-3 with crosscap number two (i.e., bounding an essential once-punctured Klein bottle).C1 CIMAT, Guanajuato 36000, Mexico. Univ Texas, Dept Math Sci, El Paso, TX 79968 USA.RP Ramirez-Losada, E, CIMAT, Apdo Postal 402, Guanajuato 36000, Mexico.EM kikis@cimat.mx valdez@math.utep.eduCR CLARK BE, 1978, INT J MATH MATH SCI, V1, P113 EUDAVE MM, 2003, INCOMPRESSIBLE SURFA EUDAVEMUNOZ M, 1994, TOPOL APPL, V55, P131 FLOYD W, 1982, TOPOL APPL, V13, P263 FLOYD W, 1988, T AM MATH SOC, V305, P575 GODA H, 1999, TOKYO J MATH, V22, P99 HATCHER A, 1985, INVENT MATH, V79, P225 ICHIHARA K, 2002, TOPOL APPL, V122, P467 MATSUDA H, 2002, P AM MATH SOC, V130, P2155 MORIMOTO K, 1991, MATH ANN, V289, P143 MORIMOTO K, 1996, J MATH SOC JPN, V48, P667 RAMIREZLOSADA E, IN PRESS TOPOLOGY AP SCHARLEMANN M, 2004, T AM MATH SOC, V356, P1385 TERAGAITO M, 2004, TOPOL APPL, V138, P219 VALDEZSANCHEZ LG, 2004, ONCE PUNCTURED KLEINNR 15TC 0PU SOCIEDAD MATEMATICA MEXICANAPI MEXICOPA APDO POSTAL 14-170, MEXICO 07000, MEXICOSN 1405-213XJ9 BOL SOC MAT MEXJI BOL. SOC. MAT. MEX.PY 2004VL 10SI Sp. Iss. SIBP 451EP 465PG 15SC MathematicsGA 019FAUT ISI:000235819800029ERPT JAU Xicotencatl, MATI On the pure braid group of a surfaceSO BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANALA EnglishDT ArticleDE surface braid groups; orbit configuration spacesAB Given a closed surface M not equal S-2 or RP2, the classical pure braid group P-k, is known to inject as a subgroup of the pure braid group of the surface, P-k(M). Moreover, its normal closure ((P-k)) is the kernel of the epimorphism phi* : p(k)(M) -> (pi M-1)(k) induced by the inclusion of the configuration space F(M, k) subset of M-k. In this article we exhibit an isomorphism between ker phi* and pi F-1(G)(H, k), where M approximate to H/G and F-G(H, k) is an appropriate orbit configuration space.C1 IPN, Dept Matemat, Mexico City 07300, DF, Mexico.RP Xicotencatl, MA, IPN, Dept Matemat, Apdo Postal 14-740, Mexico City 07300, DF, Mexico.EM xico@math.cinvestav.mxCR BIRMAN JS, 1969, COMMUN PUR APPL MATH, V22, P41 BIRMAN JS, 1975, ANN MATH STUDIES, V82 COHEN FR, 2002, TOPOL APPL, V118, P17 FADELL E, 1962, MATH SCAND, V10, P119 FADELL ER, 2000, GEOMETRY TOPOLOGY CO GOLDBERG CH, 1973, MATH SCAND, V33, P69 KATOK S, 1992, FUCHSIAN GROUPS XICOTENATL MA, 1997, THESIS U ROCHESTER XICOTENCATL MA, 1999, CONT MATH, V265, P233NR 9TC 0PU SOCIEDAD MATEMATICA MEXICANAPI MEXICOPA APDO POSTAL 14-170, MEXICO 07000, MEXICOSN 1405-213XJ9 BOL SOC MAT MEXJI BOL. SOC. MAT. MEX.PY 2004VL 10SI Sp. Iss. SIBP 525EP 528PG 4SC MathematicsGA 019FAUT ISI:000235819800035ERPT JAU Aguilar-Corona, A Morales, RD Diaz-Cruz, M Palafox-Ramos, J Demedices, LGTI Thermal stratification of steel flow in tundishes with off-centred ladle shrouds using different flow control designsSO CANADIAN METALLURGICAL QUARTERLYLA EnglishDT ArticleID CONTINUOUS-CASTING TUNDISH; NONISOTHERMAL WATER MODEL; FLUID-FLOW; SIMULATIONAB Thermal stratification of steel flow in a tundish with off-centred ladle shrouds using two flow control arrangements was studied using a non-isothermal water model. One of the flow control arrangements consisted of a pair of baffles (arrangement B) and the other one consisted of a turbulence inhibitor and a pair of dams (TI-D). Positions of the ladle shroud were centred, off-centred one ladle shroud diameter (1D) and off-centred two ladle shroud diameters (2D). Thermal experiments involved feeding higher temperature water and monitoring the effects at various locations within the liquid. For any position of the ladle shroud and casting rate, the TI-D arrangement yielded smaller thermal gradients of liquid inside the vessel and higher plug flow volumes. Particle image velocimetry (PIV) measurements demonstrated a close relationship between the velocity fields and the buoyancy number that relates thermal buoyancy forces with inertial forces for a given casting rate. Buoyancy forces were estimated through the thermal responses at the outlet and it was found that the TI-D arrangement prolonged the lifetime of the buoyancy effects to a greater extent than the B arrangement due to the effects of the turbulence inhibitor.C1 Inst Politecn Nacl, Dept Met & Mat Engn, Mexico City 07300, DF, Mexico.RP Aguilar-Corona, A, Inst Politecn Nacl, Dept Met & Mat Engn, Apdo Postal 75-874, Mexico City 07300, DF, Mexico.CR AGUILARCORONA A, 2002, STEEL RES, V73, P438 CHAKRABORTY S, 1992, IRONMAK STEELMAK, V19, P479 LOPEZRAMIREZ S, 2000, NUMER T, V37, P63 LOPEZRAMIREZ S, 2000, SC ENG, V8, P1 MORALES RD, 2001, IRONMAK STEELMAK, V28, P33 SHENG DY, 1999, METALL MATER TRANS B, V30, P979 SHENG DY, 2000, METALL MATER TRANS B, V31, P867 SHINA AK, 1998, IRONMAK STEELMAK, V25, P387NR 8TC 1PU METALLURGICAL SOC-C I MPI KINGSTONPA CANADIAN METALLURGICAL Q, QUEENS UNIV, GOODWIN HALL, RM 325, KINGSTON, ONTARIO K7L 3N6, CANADASN 0008-4433J9 CAN METALL QUARTJI Can. Metall. Q.PD OCTPY 2003VL 42IS 4BP 455EP 464PG 10SC Metallurgy & Metallurgical EngineeringGA 011TPUT ISI:000235291400008ERPT JAU Ramos-Banderas, A Sanchez-Perez, R Morales, RD Palafox-Ramos, J Garcia-Demedices, LTI Dyanmics of unsteady one-phase turbulent flows in a continuous casting mouldSO CANADIAN METALLURGICAL QUARTERLYLA EnglishDT ArticleID GATE TUNDISH NOZZLES; IMMERSION NOZZLE; ARGON BUBBLES; LIQUID STEEL; WATER MODEL; FLUID-FLOW; SIMULATIONAB The fluid flow dynamics of one-phase flows of liquid steel in a continuous casting mould was physically modelled using digital particle image velocimetry technology and mathematically simulated using a large eddy simulation approach. Both analyses showed that the flow of liquid through the mould fluctuates with time yielding asymmetrical and biased flows through both submerged entry nozzle (SEN) ports. Reynolds stresses close to the SEN ports increase approximately tenfold when the casting speed is increased from 0.8 m/min to 1.8 m/min. The highest Reynolds stresses are located in the boundary between the entering jet and the liquid bulk inside the mould producing high shear rates. Vorticity maps observe a random behaviour over time of magnitude and sign in the flow field at low casting speeds (0.8 m/min) and a layered structure with a more regular behaviour at high casting speeds (1.2 and 1.8 m/min). Vorticity and velocity/vector maps should be useful for SEN design aimed at higher casting speeds than the conventional ones with good control of fluid flow turbulence.C1 Inst Politecn Nacl ESIQIE, Dept Met & Mat Engn, Mexico City 07338, DF, Mexico.RP Ramos-Banderas, A, Inst Politecn Nacl ESIQIE, Dept Met & Mat Engn, Apdo Postal 75-874, Mexico City 07338, DF, Mexico.CR BAI H, 2001, METALL MATER TRANS B, V32, P253 BAI H, 2001, METALL MATER TRANS B, V32, P269 BIRAT JP, MOULD OPERATION QUAL, P3 CHUNG T, 2002, COMPUTATIONAL FLUID, P696 GUPTA D, 1997, ISIJ INT, V37, P654 LAUNDER BE, 1972, MATH MODELS TURBULEN ODENTHAL HJ, 2002, METALL MATER TRANS B, V33, P163 POPE SB, 2000, TURBULENT FLOWS, P529 RAFFEL M, 1998, PARTICLE IMAGE VELOC, P160 SAGAUT P, 1998, LARGE EDDY SIMULATIO, P31 SANCHEZPEREZ R, 2003, ISIJ INT, V43, P637 SMAGORINSKY J, 1963, MON WEATHER REV, V91, P99 TAKATANI K, 2001, ISIJ INT, V41, P1252 THOMAS BG, 1994, METALL MATER TRANS B, V25, P527 THOMAS BG, 2001, 59 EL FURN C 19 PROC, P3 VANDRIEST ER, 1956, J AERONAUTICAL SCIEN, V23, P1007 WILCOX DC, 2000, TURBULENCE MODELING, P4 YOKOYA S, 1998, ISIJ INT, V38, P827 YOKOYA S, 2000, ISIJ INT, V40, P578 YOKOYA S, 2001, ISIJ INT, V41, P547NR 20TC 0PU METALLURGICAL SOC-C I MPI KINGSTONPA CANADIAN METALLURGICAL Q, QUEENS UNIV, GOODWIN HALL, RM 325, KINGSTON, ONTARIO K7L 3N6, CANADASN 0008-4433J9 CAN METALL QUARTJI Can. Metall. Q.PD JULPY 2004VL 43IS 3BP 329EP 338PG 10SC Metallurgy & Metallurgical EngineeringGA 011TTUT ISI:000235291900006ERPT JAU Perez, RG Estrada, RH Uribe, AS Nava, FATI Automated technique to estimate the volume particle diameter in mineral slurriesSO CANADIAN METALLURGICAL QUARTERLYLA EnglishDT ArticleID SETTLING VELOCITY; GAS HOLDUP; SOLIDS; SYSTEMSAB This paper describes an automated conductivity-based sedimentation technique to estimate the volume particle diameter in mineral slurries. The technique was evaluated in terms of the particle size distribution, volumetric solids fraction, pH and slurry conductivity. The experimental work was conducted with silica sand and chalcopyrite. Reported results obtained with glass spheres and calcite are also included. The volume diameter (d(v)), calculated by the sedimentation technique was found to be in good agreement with the mean volume diameter (d(43)) obtained with a laser diffraction instrument. A relative error of about 15% is obtained for the narrow particle size distribution range studied (30-200 mu m).C1 IPN, CINVESTAV, Unidad Saltillo, Ramos Arizpe 250001, Coah, Mexico.RP Perez, RG, IPN, CINVESTAV, Unidad Saltillo, Ramos Arizpe 250001, Coah, Mexico.CR ARIZMEDIMORQUECHO AM, 2002, MINER ENG, V15, P61 BACRI JC, 1986, EUROPHYS LETT, V2, P123 CONCHA F, 1979, INT J MINER PROCESS, V5, P349 COULTER B, 1999, PRODUCT MANUAL COULT GANGULY UP, 1990, INT J MINER PROCESS, V29, P235 GOMEZ CO, 1991, CAN METALL QUART, V30, P201 KELLY EG, 1982, INTRO MINERAL PROCES, P491 LIN CL, 2000, MINER ENG, V13, P897 MARCHESE MM, 1992, CHEM ENG SCI, V47, P3475 MAXWELL JC, 1892, TREATISE ELECT MAGNE, P435 RICHARDSON JF, 1954, T I CHEM ENG-LOND, V32, P35 STOKES GG, 1901, T CAMBRIDGE PHIL SOC, V9, P51 TAGGART AF, 1966, ELEMENTOS PREPARACIO, P648 URIBESALAS A, 1993, CHEM ENG SCI, V48, P815 VERGOUW JM, 1997, MINER ENG, V10, P1095 VERGOUW JM, 1998, MINER ENG, V11, P159NR 16TC 0PU METALLURGICAL SOC-C I MPI KINGSTONPA CANADIAN METALLURGICAL Q, QUEENS UNIV, GOODWIN HALL, RM 325, KINGSTON, ONTARIO K7L 3N6, CANADASN 0008-4433J9 CAN METALL QUARTJI Can. Metall. Q.PD OCTPY 2004VL 43IS 4BP 467EP 474PG 8SC Metallurgy & Metallurgical EngineeringGA 011TUUT ISI:000235292000005ERPT JAU Martinez, J Martinez, L Rosenblueth, M Silva, J Martinez-Romero, ETI How are gene sequence analyses modifying bacterial taxonomy? The case of KlebsiellaSO INTERNATIONAL MICROBIOLOGYLA EnglishDT ReviewDE Klebsiella; Enterobacteria; pathogenic bacteria; species concept; bacterial taxonomy; phylogenyID 16S RIBOSOMAL-RNA; CHROMOSOMAL BETA-LACTAMASE; LENGTH DIFFERENCE TEST; ESCHERICHIA-COLI; NITROGEN-FIXATION; RAOULTELLA-PLANTICOLA; PHYLOGENETIC ANALYSES; MOLECULAR PHYLOGENY; SPECIES DEFINITION; RIBITOL-ARABITOLAB Bacterial names are continually being changed in order to more adequately describe natural groups (the units of microbial diversity) and their relationships. The problems in Klebsiella taxonomy are illustrative and common to other bacterial genera. Like other bacteria, Klebsiella spp. were isolated long ago, when methods to identify and classify bacteria were limited. However, recently developed molecular approaches have led to taxonomical revisions in several cases or to sound proposals of novel species.C1 UNAM, Ctr Ciencias Genom, Cuernavaca, Morelos, Mexico. Autonomous Univ Benito Juarez, Fac Med & Surg, Res Ctr Biol & Med Sci, Oaxaca, Mexico. Natl Inst Publ Hlth, Cuernavaca, Morelos, Mexico.RP Martinez-Romero, E, UNAM, Ctr Ciencias Genom, Apdo Postal 565-A, Cuernavaca, Morelos, Mexico.EM emartine@ccg.unam.mxCR BAGLEY ST, 1981, CURR MICROBIOL, V6, P105 BANDELT HJ, 1992, MOL PHYLOGENET EVOL, V1, P242 BOYE K, 2003, INT J MED MICROBIOL, V292, P495 BRENNER DJ, 1998, INT J SYST BACTERI 1, V48, P141 BRISSE S, 2001, INT J SYST EVOL MI 3, V51, P915 BROWN EW, 2002, MOL PHYLOGENET EVOL, V24, P102 CARTER JS, 1999, INT J SYST BACTERI 4, V49, P1695 CHELIUS MK, 2000, APPL ENVIRON MICROB, V66, P783 CHELIUS MK, 2000, PROKARYOTIC NITROGEN, P779 CILIA V, 1996, MOL BIOL EVOL, V13, P451 COMBE ML, 1994, APPL ENVIRON MICROB, V60, P26 DAUGA C, 2002, INT J SYST EVOL MI 2, V52, P531 DONG YM, 2003, SYMBIOSIS, V35, P247 DRANCOURT M, 2001, INT J SYST EVOL MI 3, V51, P925 DYKHUIZEN DE, 1991, J BACTERIOL, V173, P7257 ESCOBARPARAMO P, 2004, MOL PHYLOGENET EVOL, V30, P243 FERRAGUT C, 1989, SYST APPL MICROBIOL, V11, P121 GRANIER SA, 2003, INT J SYST EVOL MI 3, V53, P661 GRIMONT E, 2000, PROKARYOTES HAAHTELA K, 1985, APPL ENVIRON MICROB, V49, P1186 HAEGGMAN S, 2004, ANTIMICROB AGENTS CH, V48, P2400 HASHIMOTO JQ, 2003, J BACTERIOL, V185, P966 HEDEGAARD J, 1999, INT J SYST BACTERI 4, V49, P1531 INIGUEZ AL, 2004, MOL PLANT MICROBE IN, V17, P1078 JAIN K, 1974, INT J SYST BACTERIOL, V24, P402 JAMES EK, 2000, FIELD CROP RES, V65, P197 KANKI M, 2002, APPL ENVIRON MICROB, V68, P3462 KLOPPROGGE K, 2002, ARCH MICROBIOL, V177, P223 KNITTEL MD, 1977, APPLIED ENV MICROBIO, V34, P557 LADHA JK, 1983, CAN J MICROBIOL, V29, P1301 LAN RT, 2000, TRENDS MICROBIOL, V8, P396 LECOINTRE G, 1998, MOL BIOL EVOL, V15, P1685 LINK CD, 1982, NATURE, V298, P94 LINK CD, 1983, MOL GEN GENET, V189, P337 LLORET L, 2004, SCI AM LATINOAMERICA, V25, P34 MARTINEZ L, 2003, PLANT SOIL, V257, P35 MARTINEZMURCIA AJ, 1999, INT J SYST BACTERI 2, V49, P601 MATSEN JM, 1974, APPL MICROBIOL, V28, P672 MAYNARDSMITH J, 1993, P NATIONAL ACADEMY S, V90, P4384 MOLLET C, 1997, MOL MICROBIOL, V26, P1005 MONNET D, 1994, J CLIN MICROBIOL, V32, P1121 OCHMAN H, 2000, NATURE, V405, P299 PODSCHUN R, 1998, CLIN MICROBIOL REV, V11, P589 PODSCHUN R, 2001, APPL ENVIRON MICROB, V67, P3325 PUPO GM, 2000, P NATL ACAD SCI USA, V97, P10567 RAPPE MS, 2003, ANNU REV MICROBIOL, V57, P369 RAY P, 2002, NUCLEIC ACIDS RES, V30, P3972 REID SD, 2000, NATURE, V406, P64 RIVERA MC, 1998, P NATL ACAD SCI USA, V95, P6239 ROSENBLUETH M, 2003, SYST APPL MICROBIOL, V27, P27 ROSSELLOMORA R, 2001, FEMS MICROBIOL REV, V25, P39 SO RB, 1994, INT J SYST BACTERIOL, V44, P392 STACKEBRANDT E, 1994, INT J SYST BACTERIOL, V44, P846 STACKEBRANDT E, 2002, INT J SYST EVOL MI 3, V52, P1043 TRIPLETT EW, 1996, PLANT SOIL, V186, P29 UEDA K, 1999, J BACTERIOL, V181, P78 VANBERKUM P, 2003, J BACTERIOL, V185, P2988 VANDAMME P, 1996, MICROBIOL REV, V60, P407 VINUESA P, 2004, IN PRESS INT J SYST VINUESA P, 2005, MOL PHYLOGENET EVOL, V34, P29 WELCH RA, 2002, P NATL ACAD SCI USA, V99, P17020 WILLEMS A, 2001, INT J SYST EVOL MI 1, V51, P111 YOUNG JM, 2001, INT J SYST EVOL MI 3, V51, P945 ZEIGLER DR, 2003, INT J SYST EVOL MI 6, V53, P1893NR 64TC 3PU SPANISH SOCIETY MICROBIOLOGYPI MADRIDPA VITRUBIO, 8, MADRID, 28006, SPAINSN 1139-6709J9 INT MICROBIOLJI Int. Microbiol.PD DECPY 2004VL 7IS 4BP 261EP 268PG 8SC Biotechnology & Applied Microbiology; MicrobiologyGA 006KNUT ISI:000234896500004ERPT JAU Aparicio, J Hidalgo, JTI Water resources management at the Mexican bordersSO WATER INTERNATIONALLA EnglishDT ArticleDE transboundary water; sustainable water management; international treaties; Mexico; United States ofAmerica; Belize; GuatemalaID RIVERAB An analysis of the main water-related issues at the Mexican borders is presented, including the border with the United States, Belize, and Guatemala. International Treaties are described and the hydrological conditions at the regions covered by such treaties are analyzed, including droughts and water quality as well as other issues pertaining to water management, such as population, climate, and hydraulic infrastructure. Conjunctive water management between Mexico and the United States has a long and exemplary history. The border is more than 3,000 km long and is one of the busiest binational borders in the world, with a population increase index well above that of any of the two countries. This relationship started formally about a century ago with the signature of a Treaty in 1906 and has continued until the present time. As most relationships. among neighboring countries, this one has not always been exempt from controversy and differences in opinions, but these divergences have always been solved with good will and taking both countries' interests into consideration. Problems related both with water quantity and quality have been present in the Mexico-USA relationship as well as, more recently, issues dealing with ecology conservation. Due to the greater activity at the border between the United States and Mexico, this region is more deeply described, but hydrologic problems and characteristics of the borders with Guatemala and Belize are also addressed.C1 Mexican Inst Water Technol, Mexico City, DF, Mexico.RP Aparicio, J, Mexican Inst Water Technol, Mexico City, DF, Mexico.EM japaricio@tlaloc.imta.mx jhidalgo@premia.imta.mxCR *COM INT LIM AG ME, 1987, ATL FIS CUENC RIOS I *COM NAC AG, 1990, IMP AGR EC RED VOL A *COM NAC AG, 1995, REV CAN TOD AM ALT M *COM NAC AG, 1996, INF CAL AG 1974 1995 *COM NAC AG, 1999, ESTR GRAN VIS AB MAN *COM NAC AG, 1999, LIN ESTR DES HIDR RE *COM NAC AG, 2000, PROGR HIDR GRAN VIS *COM PLAN NAC HIDR, 1981, PLAN NAC HIDR BAL HI *I MEX TECN AG COM, 2000, SIST INF HIDR DISTR *INEGI, 2000, CENS GEN POBL VIV *PROGR FRONT 21 ME, 2000, REP AV PROGR FRONT 2 *TX CTR POL STUD, 2002, DISP SHAR WAT RIO GR *TX WAT DEV BOARD, 1997, TRANSB AQ EL PAS CIU *US MEX BORD PROGR, 1998, US MEX BORD ENV IND APARICIO J, 2001, P INT C TRANSB WAT R BENASSINI IC, 1972, RECURSOS HIDRAULICOS, V1, P415 COSGROVE WJ, 2000, WORLD WATER VISION M CULP PW, 2001, FEASIBILITY PURCHASE GLEICK P, 2002, WORLDS WATER BIENNIA GONZALEZ A, 2002, AVANCES HIDRAULICA, V10, P295 GONZALEZ CA, 2001, PROGRAMA REHABILITAC HOLBURT MB, 1975, NAT RESOUR J, V15, P11 HUME B, 2000, NAT RESOUR J, V15, P189 KIM TW, 2002, WATER INT, V27, P420 LEALASCENCIO MT, 2002, AVANCES HIDRAULICA, V10, P407 MUMME SP, 2000, NAT RESOUR J, V40, P341 NAVARRO J, 2002, AVANCES HIDRAULICA, V10, P359 PHILLIPS T, 2002, INTERIM NEWS 0430 RAMIREZHERNANDE.J, 2002, AVANCES HIDRAULICA, V10, P341 ROTHFEDER J, 2001, EVERY DROP SALE SHIVA V, 2002, WATER WARS PRIVATIZA TANZI A, 2001, UN CONV LAW INT WATNR 32TC 0PU INT WATER RESOURCES ASSOCPI CARBONDALEPA SOUTHERN ILLINOIS UNIV, 4535 FANER HALL, MC 4516, CARBONDALE, IL 62901-4516 USASN 0250-8060J9 WATER INTJI Water Int.PD SEPPY 2004VL 29IS 3BP 362EP 374PG 13SC Engineering, Civil; Water ResourcesGA 002NPUT ISI:000234618500011ERPT JAU Waliszewski, SM Carvajal, O Infanzon, RM Gomez-Arroyo, S Villalobos-Pietrini, R Trujillo, P Hart, MMTI Organochlorine pesticide levels in blood serum samples taken at autopsy from auto accident victims in Veracruz, MexicoSO ARCHIVES OF ENVIRONMENTAL HEALTHLA EnglishDT ArticleDE DDE; DDT; environmental exposure; organochlorine; pesticidesID ADIPOSE-TISSUE; BREAST-CANCER; UNITED-STATES; WOMEN; DDE; MILK; RESIDUES; EXPOSURE; SOIL; DICHLORODIPHENYLTRICHLOROETHANEAB Samples of human blood sera (N = 118) for the determination of organochlo- rine pesticide levels were obtained at autopsy from auto accident victims in Veracruz, Mexico, during the years 2000 and 2001. The presence of hexachlorobenzene (HCH), betahexachlorocyclohexane (beta-HCH), 2,2-bis(p-chlorophenyl)-1,1-dichloroethylene (p,p- DDE), 1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane (p,p=DDT), and o,p'-DDT was confirmed by gas-liquid-electron-capture detection chromatography. During the years 2000 and 2001, the respective mean levels of (a) HCB, (b) beta-HCH, (c) p,p =DDE, (d) o,p =DDT, (e) p,p =DDT, and (f) total DDT were (a) 2.1 ng/ml and 1.4 ng/ml, (b) 3:0 ng/ml and 3.6 ng/ml, (c) 21.1 ng/ml and 23.8 ng/ml, (d) 1.2 ng/ml and 0.8 ng/ml, (e) 3.3 ng/ml and 2.5 ng/ml, and, finally, (f) 25.4 ng/ml and 27.1 ng/ml, respectively. High levels of persistent organochlorine pesticides were-and continue to be-present in the-blood of individuals who live in Mexico. Levels of insecticide metabolites (e.g., beta-HCH, p,p =DDE) in blood have increased during recent years (1997-2001), but levels of pp =DDT decreased in 2001 because the use of DDT for the control of malaria in Mexico was restricted.C1 Univ Veracruz, Inst Forens Med, Boca Del Rio 94290, Veracruz, Mexico. Independent Natl Univ Mexico, Ctr Atmospher Sci, Coyoacan, Mexico.RP Waliszewski, SM, Univ Veracruz, Inst Forens Med, SS Juan Pablo 2 S-N, Boca Del Rio 94290, Veracruz, Mexico.EM swal@uv.mxCR ARCHIBEQUEENGLE SL, 1997, J TOXICOL ENV HEALTH, V52, P285 BJERREGAARD P, 2000, SCI TOTAL ENVIRON, V245, P195 BROWN JF, 1984, B ENVIRON CONTAM TOX, V33, P277 COCCO P, 2000, ENVIRON HEALTH PERSP, V108, P1 COVACI A, 2002, SCI TOTAL ENVIRON, V298, P45 DELGADO IF, 2002, SERUM LEVELS ORGANOC, V18, P519 DEWAILLY E, 1999, ENVIRON HEALTH PERSP, V107, P823 GLADEN BC, 1999, ENVIRON HEALTH PERSP, V107, P459 HARNE RT, 1999, ENVIRON POLLUT, V106, P323 HARNER T, 2001, ENVIRON TOXICOL CHEM, V20, P1612 HENRIKSEN EO, 1998, CHEMOSPHERE, V37, P2627 JUCHAU M, 1983, HAZARD ASSESMENT CHE, P95 KINYAMU JK, 1998, B ENVIRON CONTAM TOX, V60, P732 LOPEZCARRILLO L, 1997, ANN NY ACAD SCI, V837, P537 LOPEZCARRILLO L, 2001, ENVIRON RES, V87, P131 LOPEZCARRILLO L, 2002, EUR J CANCER PREV, V11, P1 LUO XW, 1997, SCI TOTAL ENVIRON, V208, P97 MIGLIORANZA KSB, 2002, ENVIRON SCI POLLUT R, V9, P250 MOYSICH KB, 2002, AM J IND MED, V41, P102 NERIN C, 1996, INT J ENVIRON AN CH, V65, P83 NOREN K, 1999, ARCH ENVIRON CON TOX, V37, P408 PAUWELS A, 2000, ARCH ENVIRON CON TOX, V39, P265 PRZYREMBEL H, 2000, SHORT LONG TERM EFFE, P307 RHAINDS M, 1999, ARCH ENVIRON HEALTH, V54, P40 ROGAN WJ, 1986, AM J PUBLIC HEALTH, V76, P172 RUBIN CH, 2001, INT J CIRCUMPOL HEAL, V60, P157 RUDEL H, 1992, BRIGHT CROP PROT C P, P841 RUDEL H, 1997, CHEMOSPHERE, V35, P143 RUSSELL RW, 1999, ENVIRON SCI TECHNOL, V33, P416 SANZGALLARDO MI, 1999, ARCH ENVIRON HEALTH, V54, P277 SNEDEKER SM, 2001, ENVIRON HEALTH PE S1, V109, P35 SPENCER WF, 1996, J ENVIRON QUAL, V25, P815 TRAVIS CC, 1988, ARCH ENV CONTAM TOXI, V17, P473 TURUSOV V, 2002, ENVIRON HEALTH PERSP, V110, P125 WALISZEWSKI SM, 1991, B ENVIRON CONTAM TOX, V46, P803 WALISZEWSKI SM, 2000, SALUD PUBLICA MEXICO, V42, P384 WALISZEWSKI SM, 2001, ARCH ENVIRON CON TOX, V40, P432 WARD EM, 2000, CANCER EPIDEM BIOMAR, V9, P1357 WOLFF MS, 2000, CANCER EPIDEM BIOMAR, V9, P271 YANEZ L, 2002, ENVIRON RES, V88, P174NR 40TC 1PU HELDREF PUBLICATIONSPI WASHINGTONPA 1319 EIGHTEENTH ST NW, WASHINGTON, DC 20036-1802 USASN 0003-9896J9 ARCH ENVIRON HEALTHJI Arch. Environ. HealthPD SEPPY 2004VL 59IS 9BP 441EP 448PG 8SC Environmental Sciences; Public, Environmental & Occupational HealthGA 993UFUT ISI:000233979900001ERPT JAU Goycoolea, FM Cardenas, ATI Pectins from Opuntia spp.: A short reviewSO JOURNAL OF THE PROFESSIONAL ASSOCIATION FOR CACTUS DEVELOPMENTLA EnglishDT ReviewID DROPLET-SIZE DISTRIBUTION; FICUS-INDICA MUCILAGE; CITRUS PECTIN; EMULSIFYING BEHAVIOR; GUINEA-PIGS; GUM; POLYSACCHARIDES; MODEL; PEEL; METABOLISMAB Two distinctive water-soluble high-molecular-weight pectic polysaccharide materials that occur in Opuntia cladodes and fruits have been extracted and studied in their chemical and rheological properties in our laboratory, namely, the well-known mucilage and a calcium-sensitive gelling fraction. Mucilage is present in the characteristic slimy fluid secreted by cladodes and fruits and it does not gel in the presence of calcium. Pectin of low degree of methoxyl occurs in the cell wall and can be extracted using a mild alkali process aided with a chelating agent. It shows remarkably good gelling properties in the presence of CaCl2 by a cooperative Ca2+ "egg-box" binding mechanism. Although both materials share similarities in the composition profile of their neutral constituent sugar residues, pectin has a significantly greater amount of linear polygalacturonic acid. This difference causes very different physicochemical and functional properties underlying the potential applications of these polysaccharides in a wide variety of fields (e.g., foods, biotechnology, medicine).C1 Ctr Invest Alimentac & Desarrollo AC, Biopolymer Lab, Hermosillo 83000, Sonora, Mexico. Ctr Invest Alimentac & Desarrollo AC, Guaymas 85480, Sonora, Mexico.RP Goycoolea, FM, Ctr Invest Alimentac & Desarrollo AC, Biopolymer Lab, POB 1735, Hermosillo 83000, Sonora, Mexico.EM fgoyco@cascabel.ciad.mxCR AMIN ES, 1970, CARBOHYD RES, V15, P159 ANGULO HP, 2001, QEPO, V15, P22 ASPINALL GO, 1980, BIOCH PLANTS COMPREH, V3, P473 BATI S, 2001, MATER ENG, V12, P413 CARDENAS A, 1997, J PROFESSIONAL ASS C, V2, P152 CARDENAS A, 1998, J PROF ASSOC CACTUS, V3, P64 CARDENAS A, 2003, UNPUB CARBOHYDR POLY CHANG KC, 1994, J FOOD SCI, V59, P602 CONNOLLY S, 1988, CARBOHYD POLYM, V8, P23 DICKINSON E, 1991, CARBOHYD POLYM, V14, P373 DICKINSON E, 1991, CARBOHYD POLYM, V14, P385 FERNANDEZ ML, 1990, J NUTR, V120, P1283 FERNANDEZ ML, 1994, J NUTR, V124, P817 FORNI E, 1994, CARBOHYD POLYM, V23, P231 GRANT GT, 1973, FEBS LETT, V32, P195 IBANEZCAMACHO R, 1979, ARCH INVEST MED, V20, P197 INOHARA H, 1994, GLYCOCONJUGATE J, V11, P527 JARVIS MC, 1984, PLANT CELL ENVIRON, V7, P153 MAJDOUB H, 2001, CARBOHYD POLYM, V46, P69 MAJDOUB H, 2001, POLYM INT, V50, P552 MAY CD, 1997, THICKENING GELLING A, P230 MCCANN MC, 1991, CYTOSKELETAL BASIS P, P109 MCGARVIE D, 1979, CARBOHYD RES, V69, P171 MCGARVIE D, 1979, J C S P1, V1, P1464 MCGARVIE D, 1981, CARBOHYD RES, V88, P305 MCGARVIE D, 1981, CARBOHYD RES, V88, P57 MEDINATORRES L, 2000, FOOD HYDROCOLLOID, V14, P417 MINDT L, 1975, J SCI FD AGR, V26, P993 MOHAMMED ZH, 1998, CARBOHYD POLYM, V36, P15 MORRIS ER, 1982, J MOL BIOL, V155, P507 NISHINARI K, 1996, GUMS STABILISERS FOO, V8, P371 NOBEL PS, 1992, J EXPT BOTANICAL, V43, P41 ONEILL M, 1990, METHODS PLANT BIOCH, V2, P415 OOSTERVELD A, 2000, CARBOHYD POLYM, V43, P249 PAVLEVITCH D, 1993, J HERBS SPICES MED P, V2, P45 PELLERIN P, 1996, PECTINS PECTINASES, P67 PICULELL L, 1997, INT J BIOL MACROMOL, V21, P141 PIENTA KJ, 1995, J NATL CANCER I, V87, P348 PINTADO AI, 2001, BIOTECHNOL PROGR, V17, P643 PLATT D, 1992, J NATL CANCER I, V84, P438 RAY AK, 1995, FOOD HYDROCOLLOID, V9, P123 RENARD CMGC, 1993, CARBOHYD RES, V244, P99 ROLIN C, 1993, IND GUMS POLYSACCHAR, P258 ROS JM, 1996, CARBOHYD RES, V282, P271 TALBOTT LD, 1992, PLANT PHYSIOL, V98, P357 TEXEIRA G, 2000, APPL BIOCHEM BIOTECH, V88, P299 THIBAULT JF, 1993, CARBOHYD RES, V238, P271 TRACHTENBERG S, 1981, PHYTOCHEMISTRY, V20, P2665 USCHOA AF, 1998, BRAZ J MED BIOL RES, V31, P757 VILLARREAL F, 1963, CIENCIA MEX, V22, P59 VORAGEN AGJ, 1995, FOOD POLYSACCHARIDES, P287NR 51TC 3PU PROFESSIONAL ASSOC CACTUS DEVELOPMENTPI DALLASPA C/O PUBLICATIONS DEPT, 11335 CRESTBROOK DR, DALLAS, TX 75230 USAJ9 J PROF ASSOC CACTUS DEVJI J. Prof. Assoc. Cactus Dev.PY 2003VL 5BP 17EP 29PG 13SC HorticultureGA 986WRUT ISI:000233480900002ERPT JAU Mejia, A Cantwell, MTI Prickly pear fruit development and quality in relation to gibberellic acid applications to intact and emasculated flower budsSO JOURNAL OF THE PROFESSIONAL ASSOCIATION FOR CACTUS DEVELOPMENTLA EnglishDT ArticleAB The fruit of the prickly pear cactus ("Tuna blanca", Opuntia amyclaea) has a sweet julcy pulp containing numerous hard-coated seeds, which limit the overall acceptability of the fruit. This study extended previous attempts to develop prickly pear fruits with reduced or smaller seed structures by applying gibberellic acid to floral buds. Solutions of gibberellic acid (GA(3)) were applied by spraying (100 and 500 ppm) or by injection (10 and 100 ppm) to intact or emasculated floral buds at three stages of development, and twice subsequently to the developing fruits. The GA treatments did not significantly affect fruit development when applied to intact floral buds, but reduced seed size when applied by injection. None of the treatments to emasculated buds resulted in fruit size or pulp development equal to that of the control fruits from intact floral buds. Spray application of 100 ppm GA to emasculated buds was the only treatment in which there was no hard seed coat development, but fruit size and percentage pulp were low as well. The other GA treatments were more effective in inducing pulp development but also resulted in the development of hardened seed coats (abortive seeds). These results further illustrate the dual role of the funiculus in the development of the pulp and seed coats in prickly pear fruits. The soluble solids contents of fruit pulp from intact and emasculated GA-treated buds were similar, but titratable acidity values were lower in the fruits from emasculated buds. GA treatments also tended to result in reduced peel firmness.C1 Univ Sonora, Sch Agr, Hermosillo, Sonora, Mexico. Univ Calif Davis, Dept Vegetable Crops, Davis, CA 95616 USA.RP Mejia, A, Univ Sonora, Sch Agr, Hermosillo, Sonora, Mexico.EM micantwell@ucdavis.eduCR AGUILARBECERRIL G, 1980, THESIS AUTONOMOUS U BANGERTH F, 1983, POSTHARVEST PHYSL CR, P331 BARBERA G, 1992, 2 C INT TUN COCH SAN, P8 BENSON L, 1982, CACTI US CANADA, P47 COOMBE BG, 1976, ANNU REV PLANT PHYS, V27, P208 DELOUCHE JC, 1971, PRUEBA VIABILIDAD SE DIAZ ZF, 1978, CIENC INVEST, V5, P109 GARCIAMARIN SPC, 1984, THESIS POSTGRADUATE GIL GF, 1977, CIENC INVEST, V4, P163 GIL S, 1979, CIENC INVEST, V7, P141 HERNANDEZ E, 1979, P TROPICAL REGION AM, V23, P48 INGLESE P, 1993, P 4 ANN TEX PRICKL P, P24 LAKSHMINARAYANA S, 1979, TROPICAL FOODS, V1, P69 MAHESHWARI P, 1955, PHYTOMORPHOLOGY, V5, P112 MARTINEZRODRIGU.OA, 1990, MEMORIAS NOPAL CONOC, P60 MEJIANUNEZ A, 1986, THESIS U SONORA HERM MONDRAGONJACOBO C, 1996, PROGR NEW CROPS, P446 PIMIENTA BE, 1985, AGROCIENCIA, V62, P51 PIMIENTA EB, 1991, P 2 ANN TEX PRICKL P, P1 PIMIENTABARRIOS E, 1990, NOPAL TUNERO QUINTEROP, 1987, 2 C NAC HORT MEX SOC, P83 RIVERA O, 1981, CIENC INVEST, V8, P215 SCHWABE WW, 1981, HORTIC ABSTR, V51, P161 SOSA L, 1978, THESIS POSTGRADUATE VANKUS V, 1997, PNWGTR419, P57 WANG X, 1996, J PACD, V1, P49 WEISS J, 1993, ANN BOT-LONDON, V72, P521NR 27TC 0PU PROFESSIONAL ASSOC CACTUS DEVELOPMENTPI DALLASPA C/O PUBLICATIONS DEPT, 11335 CRESTBROOK DR, DALLAS, TX 75230 USAJ9 J PROF ASSOC CACTUS DEVJI J. Prof. Assoc. Cactus Dev.PY 2003VL 5BP 72EP 85PG 14SC HorticultureGA 986WRUT ISI:000233480900007ERPT JAU Flores-Hernandez, A Orona-Castillo, I Murillo-Amador, B Valdez-Cepeda, RD Garcia-Hernandez, JLTI Production and quality of nopalito in the Comarca Lagunera region of Mexico in relation to price in the domestic marketSO JOURNAL OF THE PROFESSIONAL ASSOCIATION FOR CACTUS DEVELOPMENTLA SpanishDT ArticleDE prickly pear cactus; drip irrigation; chemical analysis; green cladodes yieldAB Nopal's (prickly pear cactus) crops with horticultural purpose is based on the use of high population densities (40,000 plants ha(-1)), continuous pruning of the bud, water and nutrients supply, and the use of compact land surfaces. In the URUZA-UACh experimental station, Bermejillo, Durango, Mexico. Ten nopal cultivars were evaluated under drip irrigation system on three dates: May, July, and September 2001. Differences in bud yield among cultivars and dates were found, the superior cultivars with an average production of 20 t ha(-1) month(-1), with 640 m(3) month(-1) ha(-1), with the smaller production in the colder month (September). Important differences in acid (pH) as the hour of the day (which influences the cutting hour), as well as content protein, fat, neutral detergent fiber, ashes (minerals: phosphorus and calcium) and the in vitro digestibility among evaluated cultivars buds, selecting cultivars C-15 for quality and C-13 for production. The price in this year had big fluctuation according to consume region from U.S. $ 0.10 kg(-1) to U.S. $1.20 kg(-1). In the Comarca Lagunera a price of U.S. $0.38 kg(-1) was maintained, being similar to Monterrey, Nuevo Leon (U.S. $0.32 kg(-1)).C1 Ctr Invest Biol Noroeste, La Paz 23090, Baja California, Mexico. Zonas Aridas Univ Autonoma Chapingo, Unidad Reg Univ, Bermejillo 35230, Durango, Mexico. CENID, RASPA, INIFAP, Gomez Palacio, Durango, Mexico. Univ Autonoma Chapingo, Ctr Reg Univ Ctr Norte, MCDRR, Zacatecas 98001, Zac, Mexico.RP Murillo-Amador, B, Ctr Invest Biol Noroeste, SC Bermejo 195 Col Playa Palo Santa Rita, La Paz 23090, Baja California, Mexico.EM bmurillo@cibnor.mxCR *CENTR NOP TUN EST, 1981, MONOGRAFIA TECNICO C, P10 *SAGAR CEA, 1999, AN EST PROD AGR SECR BIDWELL RGS, 1979, FISIOLOGIA VEGETAL BROM RF, 1970, NOPAL EDITADO CONAFR, P1013 DELGADO NVH, 1988, PRUEBA CUATRO COLECT FLLRES VG, 1992, THESIS U AUTONOMA FLORES VC, 1992, NOPAL COMO FORRAJE C FLORESHERNANDEZ A, 1994, NOPAL OPUNTIA SPP RE FLORESVALDEZ CA, 1977, THESIS ENA CHAPINGO GARCIA SML, 1996, EVALUACION PROCESO S HERNANDEZ M, 1987, VALOR NUTR ALIMENTOS MURILLOAMADOR B, 1997, 7 C NAC 5 INT FAC AG MURILLOAMADOR B, 2002, CULTIVO FORRAJERO SO MURILLOAMADOR B, 2002, NOPAL CULTIVO FORRAJ NOBEL PS, 1980, OECOLOGIA, V45, P160 ORONACASTILLO I, 2001, MEM 4 REUN INV CIENC ORONACASTILLO I, 2002, PRODUCCION COMERCIAL ORONACASTILLO I, 2002, PRODUCTIVIDAD AGUA N RAMIREZ ME, 1972, CULTIVO EXPLOTACION, P10 SAMISH YB, 1975, J RANGE MANAGE, V28, P365 VILLARREAL A, 1958, PRIM C INV AGR MEX E, V7, P296NR 21TC 0PU PROFESSIONAL ASSOC CACTUS DEVELOPMENTPI DALLASPA C/O PUBLICATIONS DEPT, 11335 CRESTBROOK DR, DALLAS, TX 75230 USAJ9 J PROF ASSOC CACTUS DEVJI J. Prof. Assoc. Cactus Dev.PY 2004VL 6BP 23EP 34PG 12SC HorticultureGA 986WUUT ISI:000233481200003ERPT JAU Magallanes-Quintanar, R Valdez-Cepeda, RD Blanco-Macias, F Marquez-Madrid, M Ruiz-Garduno, RR Perez-Veyna, O Garcia-Hernandez, JL Murillo-Amador, B Lopez-Martinez, JD de Celis, EMRTI Compositional nutrient diagnosis in Nopal (Opuntia ficus-indica)SO JOURNAL OF THE PROFESSIONAL ASSOCIATION FOR CACTUS DEVELOPMENTLA EnglishDT ArticleDE compositional nutrient diagnosis approach; nutrient interactions; nutrient normsID GROWTH; CROPS; IMBALANCE; SALINITYAB The appraisal of soil fertility and the assessment of plant mineral requirements are fundamental for crop management. This study was conducted to determine nutrient norms and to identify significant nutrient interactions in nopal (Opuntia ficus-indica). Preliminary compositional nutrient diagnosis (CND) norms were developed from a small database as means and standard deviations of row-centered log ratios (Vx) of five nutrients (N, P, K, Ca, and Mg) and a filling value, R, which comprises all nutrients not chemically analyzed and quantified in nopal plants. Preliminary CND norms are: V-N(*) = -1.13336 +/- 0.0766, V-P(*) = 2.26110 +/- 0.1093, V-K(*) = 0.36715 +/- 0.2329, V-Ca(*) = 0.37021 +/- 0.1047, V-Mg(*) = -0.7257 +/- 0.1413, and V-Rs(*) = 3.38281 +/- 0.0833. These norms qualify yields higher than 35 kg pl(-1) (fresh matter of cladodes one- year old) registered in an experimental plot with a plant density of 10000 plants per hectare, and are associated to 0.97% N, 0.31% P, 4.47% K, 4.37% Ca, and 1.47% Mg. Four important nutrient interactions were evidenced through principal component analyses: Ca-Mg, Ca-N, Mg-N, and K-P.C1 Univ Autonoma Zacatecas, Unidad Acad Med Vet & Zootecn, Programa Doctorado Ciencias Pecuarias, Zacatecas 98500, Mexico. Univ Autonoma Chapingo, Ctr Reg Univ Ctr Norte, MCDRR, Zacatecas 98001, Zac, Mexico. Univ Autonoma Zacatecas, Unidad Acad Matemat, Zacatecas, Zac, Mexico. Univ Autonoma Zacatecas, Ctr Univ Computo, Zacatecas 98064, Zac, Mexico. Ctr Invest Biol Noroeste, La Paz 23090, BCS, Mexico. Univ Juarez Estado Durango, Fac Agr & Zootecn, Gomez Palacio 35000, Dgo, Mexico. Inst Tecnol Agropecuario Laguna, Torreon 3500, Coahuila, Mexico.RP Magallanes-Quintanar, R, Univ Autonoma Zacatecas, Unidad Acad Med Vet & Zootecn, Programa Doctorado Ciencias Pecuarias, Apdo Postal 11, Zacatecas 98500, Mexico.EM vacrida@hotmail.comCR *MICR CORP, 2000, MICR EXC 2000 COMP P *STATSOFT INC, 1998, STAT WIND COMP PROGR APPENROTH KJ, 1999, PLANTA, V208, P583 BATES TE, 1971, SOIL SCI, V112, P116 CLAESSENS AS, 1997, ACTA HORTIC, V438, P83 ESSCANO CR, 1951, SOIL SCI SOC AM J, P1140 GATHAARA GN, 1989, J ARID ENVIRON, V16, P337 GRATTAN SR, 1999, SCI HORTIC-AMSTERDAM, V78, P127 GUTIERREZACOSTA F, 2002, ACTA HORTIC, V581, P111 KHIARI L, 2001, AGRON J, V93, P802 NERD A, 1992, P 3 ANN TEX PRICKL P, P1 NOBEL PS, 1983, AM J BOT, V70, P1244 OVALLES FA, 1988, SOIL SCI SOC AM J, V52, P1430 PARENT LE, 1992, J AM SOC HORTIC SCI, V117, P239 PARENT LE, 1994, SOIL SCI SOC AM J, V58, P1432 ROSS SM, 1987, INTRO PROBABILITY ST RUIZ D, 1997, TREE PHYSIOL, V17, P141 SUMNER ME, 1986, ADV SOIL SCI, V5, P201 VALDEZCEPEDA RD, 2002, 230308 PUIFRU U AUT WALWORTH JL, 1987, ADV SOIL SCI, V6, P149 WALWORTH JL, 1988, COMMUN SOIL SCI PLAN, V19, P563 WARE GO, 1982, AGRON J, V74, P88NR 22TC 2PU PROFESSIONAL ASSOC CACTUS DEVELOPMENTPI DALLASPA C/O PUBLICATIONS DEPT, 11335 CRESTBROOK DR, DALLAS, TX 75230 USAJ9 J PROF ASSOC CACTUS DEVJI J. Prof. Assoc. Cactus Dev.PY 2004VL 6BP 78EP 89PG 12SC HorticultureGA 986WUUT ISI:000233481200006ERPT JAU Orona-Castillo, I Cueto-Wong, JA Murillo-Amador, B Santamaria-Cesar, J Flores-Hernandez, A Valdez-Cepeda, RD Garcia-Hernandez, JL Troyo-Dieguez, ETI Mineral extraction of green prickly pear cactus under drip irrigationSO JOURNAL OF THE PROFESSIONAL ASSOCIATION FOR CACTUS DEVELOPMENTLA SpanishDT ArticleDE prickly pear cactus; plant nutrition; drip irrigationID OPUNTIA-FICUS-INDICA; PRODUCTIVITYAB From April 2001 to March 2002, a study related to the extraction of nutrients in green prickly pear under drip irrigation was developed. Variety 69 (Opuntia ficus-indica) was used as a genetic material. Three humidity levels from the restoration of the 30%, 45%, and 60% of the daily evaporation were evaluated. The experimental design was a complete randomized block with three replications per treatment. The experimental plots were four plants rows of 4 m length, 0.4 m between plants and 0.6 m between rows. The results showed that the application of irrigation equivalent to 30%, 45%, and 60% of annual total evaporation achieved nopalito yields of 163.58, 174.15 and 171.8 t ha(-1), respectively. The production significantly decreased during November and December, while in January it stopped completely. The macronutrient (N, P, and K) extraction showed a cyclic response during the year under the three humidity levels, showing the higher extraction during March, June, July, and August, while the lower extraction occurred in November, December, and February. No significant differences between the micronutrients (Ca, Mg, Fe, Mn, Zn, Cu, and B) extraction were found. In general, we concluded that there were no significant differences during the year in the nutrient absorption by green prickly pear when irrigation was applied equally in the range from 45% to 60% of the daily evaporation.C1 Ctr Invest Biol Noroeste, La Paz 23090, Baja California, Mexico. Inst Nacl Invest Forestales Agricolas & Pecuarias, Ctr Nacl Invest Disciplinaria Relac Agua Suelo Pl, Cd Lerdo 35150, Durango, Mexico. Univ Autonoma Chapingo, Unidad Reg Univ Zonas Aridas, Bermejillo 35230, Durango, Mexico. Univ Autonoma Chapingo, Ctr Reg Univ Ctr Norte, MCDRR, El Orito 98001, Zacatecas, Mexico.RP Murillo-Amador, B, Ctr Invest Biol Noroeste, SC Mar Bermejo 195 Col Playa Palo Santa Rita, La Paz 23090, Baja California, Mexico.EM bmurillo04@cibnor.mxCR *SAGARPA, 2002, AN EST PROD AGR *USDA, 1996, SOIL SURV STAFF KEYS CONDE LF, 1975, ANN MISSOURI BOT GAR, V62, P425 DELAROSA HP, 1998, NOPAL USOS MANEJO AG GOLDSTEIN G, 1991, AUST J PLANT PHYSIOL, V18, P95 GONZALEZ CL, 1990, P 1 ANN TEX PRICKL P MONDRAGON C, 1990, MEM 4 C NAC 2 C INT NERD A, 1992, HORT SCI, V26, P527 NOBEL PS, 1984, PHYSIOL PLANTARUM, V60, P98 NOBEL PS, 1987, AGRON J, V79, P550 NOBEL PS, 1989, J APPL ECOL, V26, P635 NOBEL PS, 2001, 169 FAO ORONACASTILLO I, 2002, PRODUCTIVIDAD AGUA N PIMIENTABARRIOS E, 1992, ACT 3 C INT TUN COCH, P30 PLENECASSAGNE A, 1997, MANUAL LAB INIFAP OR VALDEZCEPEDA RD, 2003, NOPAL ALTERNATIVA AG VILLA CM, 1992, APLICACION INFORM CLNR 17TC 0PU PROFESSIONAL ASSOC CACTUS DEVELOPMENTPI DALLASPA C/O PUBLICATIONS DEPT, 11335 CRESTBROOK DR, DALLAS, TX 75230 USAJ9 J PROF ASSOC CACTUS DEVJI J. Prof. Assoc. Cactus Dev.PY 2004VL 6BP 90EP 101PG 12SC HorticultureGA 986WUUT ISI:000233481200007ERPT JAU Barahona, ATI Selectivity and discord. Two problems of experimentSO HISTORY AND PHILOSOPHY OF THE LIFE SCIENCESLA EnglishDT Book ReviewC1 Natl Autonomous Univ Mexico, Sch Sci, Mexico City 04510, DF, Mexico.RP Barahona, A, Natl Autonomous Univ Mexico, Sch Sci, Mexico City 04510, DF, Mexico.CR FRANKLIN A, 2002, SELECTIVITY DISCORDNR 1TC 0PU TAYLOR & FRANCIS LTDPI ABINGDONPA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLANDSN 0391-9714J9 HIST PHIL LIFE SCIJI Hist. Philos. Life Sci.PY 2004VL 26IS 3-4BP 431EP 432PG 2SC History & Philosophy Of ScienceGA 983FVUT ISI:000233217600024ERPT JAU Robles, C Barea, JMTI Microbial-plant symbiosis and quality of soil in a degraded Mediterranean ecosystemSO AGROCHIMICALA SpanishDT ArticleID INFECTION; ROOTSAB Rizospheric and no rhizospheric soil samples were taken in a Mediterranean degraded ecosystem corresponding to an > from Sierra de los Filabres (Almeria, Espana) from november 1996 to march 1998. Arbuscular mycorrhizal fungi propagules densities and nitrogen fixing bacteria (Rhizobium), associated to Anthyllis cytisoides, showed variations according with climatic stationality. Roots and its associated soil microorganisms clearly and positively affected all the biological and physicochemical analyzed parameters. This effect is indicative of the transcendental role of these microorganisms in the regeneration of degraded soils.C1 IPN Oaxaca, CHDIR, Dpto Recursos Nat, Oaxaca 71230, Mexico. CSIC, Estac Expt Zaidin, Dpto Microbiol Suelo & Sistemas Simbioticos, Granada, Spain.RP Robles, C, IPN Oaxaca, CHDIR, Dpto Recursos Nat, C Hornos 1003, Oaxaca 71230, Mexico.EM crobles@ole.comCR ALBALADEJO J, 1996, SOIL DEGRADATION DES, P265 BAREA JM, 1995, MYCORRHIZA STRUCTURE, P521 GIOVANNETTI M, 1980, NEW PHYTOL, V84, P489 LETACON F, 1990, AMBIO, V19, P372 LOPEZSANCHEZ ME, 1992, MYCORRHIZA, V2, P33 PHILLIPS JM, 1970, T BRIT MYCOLOGICAL S, V55, P158 REQUENA N, 1996, THESIS U GRANADA ESP ROBLES C, 1999, THESIS U POLITECNICA SIEVERDING E, 1983, MANUAL METODOS INVES SKUJINS J, 1986, MIRCEN J APPL MICROB, V2, P161 SPIEGEL MR, 1991, ESTADISTICA TRENT JD, 1994, GREAT BASIN NAT, V54, P291NR 12TC 0PU IST CHIMICA AGRARIAPI PISA 56100PA UNIV PISA VIA S MICHELE DEGLI SCALZI, 2 PISA 56100, ITALYSN 0002-1857J9 AGROCHIMICAJI AgrochimicaPD MAY-AUGPY 2004VL 48IS 3-4BP 99EP 103PG 5SC Chemistry, Applied; Soil ScienceGA 982FFUT ISI:000233142600002ERPT JAU Acosta, C Leon, VJ Conrad, C Gonzalez, R Malave, COTI Case study on culture and the implementation of manufacturing strategy in MexicoSO JOURNAL OF MANUFACTURING SYSTEMSLA EnglishDT ArticleDE global manufacturing; improvement methods; cultureID NATIONAL CULTURE; ENTRY; SELFAB Even under the best circumstances, organizational change generates resistance. When the change results from a company in one country purchasing a plant in a different country, the complexity of change management and the resistance to change increase considerably. This case analysis examines one such change effort. Initially, the effort failed because the management of the acquiring (U.S.) firm communicated ineffectively with workers in the acquired (Mexican) plant, failed to establish a reward system that encouraged acceptance of change, and ignored cultural and subcultural differences. However, management quickly learned from its mistakes and made the adjustments necessary to turn failure into success. Implications for cross-cultural change management are discussed.C1 Univ Americas, Dept Mech Engn, Puebla, Mexico. Texas A&M Univ, Mfg & Mech Engn Technol Program, College Stn, TX USA. Texas A&M Univ, Dept Commun, College Stn, TX USA. Texas A&M Univ, Dwight Look Coll Engn, Recruitment & Int Program, College Stn, TX USA.RP Acosta, C, Univ Americas, Dept Mech Engn, Puebla, Mexico.CR ADLER NI, 1997, INT DIMENSIONS ORG B APPELBAUM E, 1994, NEW AM WORKPLACE TRA ASHFORD SJ, 1988, J APPLIED BEHAVIORAL, V24, P19 BARKEMA HG, 1996, STRATEGIC MANAGE J, V17, P151 CLEGG SR, 1989, FRAMEWORKS POWER CYERT RM, 1963, BEHAV THEORY FIRM DEETZ S, 2000, LEADING ORG TRANSITI DOWLING P, 1994, INT DIMENSIONS HUMAN EARLEY PC, 1993, ACAD MANAGE J, V36, P565 EARLEY PC, 1994, ADMIN SCI QUART, V39, P89 HAMRIN RD, 1980, MANAGING GROWTH 1980 HOBBES T, 1962, LEVIATHAN HOFSTEDE G, 2001, CULTURE CONSEQUENCES KIRKMAN BL, 1997, ACAD MANAGE REV, V22, P730 KOGUT B, 1988, J INT BUS STUD, V19, P411 LAURENT A, 1978, 7828 EUR I ADV STUD LEUNG K, 1987, J PERS SOC PSYCHOL, V53, P898 LEUNG K, 1990, J APPL PSYCHOL, V75, P1134 LI JT, 1992, J INT BUS STUD, V23, P675 LYTH IM, 1988, CONTAINING ANXIETY I MANN J, 1989, BEJING JEEP SHORT UN MULDER M, 1977, DAILY POWER GAME NEWMAN KL, 1996, J INT BUS STUD, V27, P753 NOER DMM, 1993, HEALING WOUNDS POOLE MS, 2000, ORG CHANGE INNOVATIO RENDON R, 1996, BREVE HIST TLAXCALA SALANCIK GR, 1978, ADM SCI Q, V23, P224 STOHL C, 2001, MANAGEMENT COMMUNICA, V14, P349 TEGAR A, 1980, TOO MUCH INVESTED QU ZALTMAN G, 1973, INNOVATIONS ORG ZORN T, 1965, AM SOCIOL REV, V30, P539NR 31TC 0PU SOC MANUFACTURING ENGINEERSPI DEARBORNPA ONE SME DRIVE, PO BOX 930, DEARBORN, MI 48121-0930 USASN 0278-6125J9 J MANUF SYSTJI J. Manuf. Syst.PY 2004VL 23IS 3BP 204EP 214PG 11SC Engineering, Industrial; Engineering, Manufacturing; Operations Research & Management ScienceGA 976WBUT ISI:000232763100004ERPT SAU Mercado, A Gamba, G Mount, DBTI Molecular physiology of mammalian K+-Cl- cotransportersSO CELL VOLUME AND SIGNALINGSE ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGYLA EnglishDT ArticleID VASCULAR SMOOTH-MUSCLE; RED-BLOOD-CELLS; CATION-CHLORIDE COTRANSPORTERS; NEURONAL-SPECIFIC ISOFORM; RAT MIDBRAIN NEURONS; HUMAN-ERYTHROCYTES; SHEEP ERYTHROCYTES; -COTRANSPORT SYSTEM; NA+-K+-2CL(-) COTRANSPORTER; FUNCTIONAL-CHARACTERIZATIONC1 W Roxbury VA Med Ctr, Div Renal, Boston, MA USA. Harvard Univ, Brigham & Womens Hosp, Sch Med, Boston, MA 02115 USA. Univ Nacl Autonoma Mexico, Inst Invest Biomed, Mol Physiol Unit, Mexico City 14000, DF, Mexico. Inst Nacl Nutr Salvador Zubiran, Mexico City 14000, DF, Mexico.RP Mercado, A, W Roxbury VA Med Ctr, Div Renal, Boston, MA USA.EM amercado@rics.bwh.harvard.edu gamba@biomedicas.unam.mx dmount@rics.bwh.harvard.eduCR ADRAGNA NC, 1994, J MEMBRANE BIOL, V142, P195 ADRAGNA NC, 2000, AM J PHYSIOL-CELL PH, V278, C381 AGUADO F, 2003, DEVELOPMENT, V130, P1267 AMLAL H, 1994, AM J PHYSIOL-CELL PH, V267, C1607 AMORIM JBO, 2003, AM J PHYSIOL-RENAL, V284, F381 ARMSBY CC, 1995, AM J PHYSIOL-CELL PH, V268, C894 ARMSBY CC, 1996, AM J PHYSIOL-CELL PH, V270, C866 AVISON MJ, 1988, J MEMBRANE BIOL, V105, P197 BIZE I, 1994, AM J PHYSIOL 1, V266, C759 BIZE I, 1995, AM J PHYSIOL-CELL PH, V269, C849 BIZE I, 1999, AM J PHYSIOL-CELL PH, V277, C926 BIZE I, 2000, J MEMBRANE BIOL, V177, P159 BOETTGER T, 2002, NATURE, V416, P874 BOETTGER T, 2003, EMBO J, V22, P5422 BRUGNARA C, 1986, SCIENCE, V232, P388 BRUGNARA C, 1987, AM J PHYSIOL, V252, P269 BRUGNARA C, 2003, J PEDIAT HEMATOL ONC, V25, P927 CHEN Y, 2003, FASEB J, V17, A462 CLAYTON GH, 1998, BRAIN RES DEV BRAIN, V109, P281 COGAN MG, 1986, AM J PHYSIOL, V250, F22 COSSINS AR, 1994, AM J PHYSIOL-CELL PH, V267, C1641 COSSINS AR, 1997, J EXP BIOL, V200, P343 COULL JAM, 2003, NATURE, V424, P938 DEFAZIO RA, 2000, J NEUROSCI, V20, P8069 DEFRANCESCHI L, 1997, J CLIN INVEST, V99, P220 DELPIRE E, 1992, J MEMBRANE BIOL, V126, P89 DELPIRE E, 2000, NEWS PHYSIOL SCI, V15, P309 DIFULVIO M, 2003, AM J PHYSIOL-HEART C, V284, H1686 DUNHAM PB, 1980, P NATL ACAD SCI-BIOL, V77, P1711 DUPRE N, 2003, ANN NEUROL, V54, P9 ELLISON DH, 1985, AM J PHYSIOL, V248, F638 ELLISON DH, 1986, AM J PHYSIOL, V250, F885 ELLORY JC, 1990, FEBS LETT, V262, P215 ESTEVEZ R, 2003, NEURON, V38, P47 FLATMAN PW, 1996, AM J PHYSIOL-CELL PH, V271, C255 FUKUDA A, 1998, J NEUROPHYSIOL, V79, P439 GANGULY K, 2001, CELL, V105, P521 GARAY RP, 1988, MOL PHARMACOL, V33, P696 GECK P, 1980, BIOCHIM BIOPHYS ACTA, V600, P432 GILLEN CM, 1996, J BIOL CHEM, V271, P16237 GILLEN CM, 1999, AM J PHYSIOL-CELL PH, V276, C328 GRZELAK A, 2001, CELL BIOL INT, V25, P1163 GU MX, 1996, J BIOL CHEM, V271, P27751 GULYAS AI, 2001, EUR J NEUROSCI, V13, P2205 HAAS M, 2000, ANNU REV PHYSIOL, V62, P515 HALL AC, 1986, BIOCHIM BIOPHYS ACTA, V858, P317 HAUG K, 2003, NAT GENET, V33, P527 HEBERT SC, 2004, PFLUG ARCH EUR J PHY, V447, P580 HIKI K, 1999, J BIOL CHEM, V274, P10661 HOLTZMAN EJ, 1998, AM J PHYSIOL-RENAL, V275, F550 HOWARD HC, 2002, NAT GENET, V32, P384 HUBNER CA, 2001, NEURON, V30, P515 ISENRING P, 1998, J GEN PHYSIOL, V112, P549 ISHIBASHI K, 1990, AM J PHYSIOL, V258, F1569 JAROLIMEK W, 1999, J NEUROSCI, V19, P4695 KAJI D, 1986, J GEN PHYSIOL, V88, P719 KAJI DM, 1995, AM J PHYSIOL-CELL PH, V268, C1018 KAKAZU Y, 2000, J NEUROPHYSIOL, V84, P281 KANAKA C, 2001, NEUROSCIENCE, V104, P933 KARADSHEH MF, 2001, J NEUROPHYSIOL, V85, P995 KARADSHEH MF, 2004, NEUROSCIENCE, V123, P381 KELSCH W, 2001, J NEUROSCI, V21, P8339 KIRSCH J, 1998, NATURE, V392, P717 KONE BC, 1989, P NATL ACAD SCI USA, V86, P6431 KUNCHAPARTY S, 1999, AM J PHYSIOL-RENAL, V277, F643 LARSSON LI, 1993, APPL IMMUNOHISTO M M, V1, P2 LAUF PK, 1980, BIOCHEM BIOPH RES CO, V92, P1422 LAUF PK, 1988, AM J PHYSIOL, V255, C331 LAUF PK, 1988, MOL CELL BIOCHEM, V82, P97 LAUF PK, 1992, AM J PHYSIOL, V263, C917 LAUF PK, 1995, AM J PHYSIOL-CELL PH, V269, C1167 LAUF PK, 1998, J PHYSIOL-LONDON, V511, P1 LAUF PK, 2000, CELL PHYSIOL BIOCHEM, V10, P341 LAUF PK, 2002, COMP BIOCH PHYSL, V130, P499 LEINEKUGEL X, 1997, NEURON, V18, P243 LI H, 2002, EUR J NEUROSCI, V16, P2358 LINTON SM, 1999, J EXP BIOL, V202, P1561 LU J, 1999, J NEUROBIOL, V39, P558 LUDWIG A, 2003, EUR J NEUROSCI, V18, P3199 LYTLE C, 1998, AM J PHYSIOL-CELL PH, V274, C1002 MARTY S, 1996, NEURON, V16, P565 MERCADO A, 2000, FASEB J, V14, A341 MERCADO A, 2000, J BIOL CHEM, V275, P30326 MERCADO A, 2003, J AM SOC NEPHROL, V14 MERCADO A, 2003, J AM SOC NEPHROL, V14, A546 MEYER JW, 2002, AM J PHYSIOL-HEART C, V283, H1846 MIKAWA S, 2002, DEV BRAIN RES, V136, P93 MILES R, 1999, NATURE, V397, P215 MOSELEY RH, 1999, AM J PHYSIOL, V276, P185 MOUNT DB, 1999, J BIOL CHEM, V274, P16355 MOUNT DB, 2000, J AM SOC NEPHROL, V11, A35 MOUNT DB, 2001, CURR OPIN NEPHROL HY, V10, P685 OCHIAI H, 2004, J BIOCHEM, V135, P365 PAYNE JA, 1996, J BIOL CHEM, V271, P16245 PAYNE JA, 1997, AM J PHYSIOL-CELL PH, V273, C1516 PAYNE JA, 2003, TRENDS NEUROSCI, V26, P199 PEARSON MM, 2001, NEUROSCIENCE, V103, P481 PLATA C, 2002, J BIOL CHEM, V277, P11004 QUAN QA, 2001, AM J PHYSIOL-RENAL, V280, F524 RACE JE, 1999, AM J PHYSIOL-CELL PH, V277, C1210 RECHSTEINER M, 1996, TRENDS BIOCHEM SCI, V21, P267 RIVERA C, 1999, NATURE, V397, P251 RIVERA C, 2002, J CELL BIOL, V159, P747 RIVERA C, 2004, J NEUROSCI, V24, P4683 SACHS JR, 1994, AM J PHYSIOL, V266, C997 SAITTA M, 1990, AM J HYPERTENS, V3, P939 SCOTT DA, 1999, NAT GENET, V21, P440 SHEN MR, 2001, P NATL ACAD SCI USA, V98, P14714 SONG L, 2000, FASEB J, A341 SONG LY, 2002, MOL BRAIN RES, V103, P91 STEIN V, 2004, J COMP NEUROL, V468, P57 STEINLEIN OK, 2001, EPILEPSY RES, V44, P191 STRANGE K, 2000, AM J PHYSIOL-CELL PH, V279, C860 SU WF, 1999, AM J PHYSIOL-CELL PH, V277, C899 THOMPSON SM, 1989, J NEUROPHYSIOL, V61, P512 TITZ S, 2003, J PHYSIOL-LONDON, V550, P719 VALLET V, 1997, NATURE, V389, P607 VANDENPOL AN, 1996, J NEUROSCI, V16, P4283 VARDI N, 2000, J NEUROSCI, V20, P7657 VITOUX D, 1989, P NATL ACAD SCI USA, V86, P4273 VU TQ, 2000, J NEUROSCI, V20, P1414 WELLING PA, 1988, AM J PHYSIOL, V255, F853 WILLIAMS JR, 1999, J BIOL CHEM, V274, P12656 WOO NS, 2002, HIPPOCAMPUS, V12, P258 YAMADA J, 2004, J PHYSIOL-LONDON, V557, P829 ZHOU GP, 2004, BLOOD, V103, P4302NR 126TC 0PU SPRINGERPI NEW YORKPA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATESSN 0065-2598J9 ADVAN EXPERIMENT MED BIOLJI Adv.Exp.Med.Biol.PY 2004VL 559BP 29EP 41PG 13SC Medicine, Research & ExperimentalGA BDB39UT ISI:000232359300003ERPT SAU Gamba, G Bobadilla, NATI Molecular physiology of the renal Na+-Cl- and Na+-K+-2Cl(-) cotransportersSO CELL VOLUME AND SIGNALINGSE ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGYLA EnglishDT ArticleID THICK ASCENDING LIMB; FUNCTIONAL EXPRESSION; NA-K-2CL COTRANSPORTER; NACL COTRANSPORTER; GITELMANS-SYNDROME; WNK KINASES; ISOFORMS; CHLORIDE; TRANSPORT; MEMBRANEC1 Inst Nacl Nutr Salvador Zubiran, Mol Physiol Unit, Mexico City 14000, DF, Mexico. UNAM, Inst Invest Biomed, Mexico City 14000, DF, Mexico.RP Gamba, G, Inst Nacl Nutr Salvador Zubiran, Mol Physiol Unit, Vasco Quiroga 15, Mexico City 14000, DF, Mexico.EM gamba@biomedicas.unam.mxCR BECK FX, 1985, PFLUG ARCH S1, V405, P28 BECK FX, 1998, CELL VOLUME REGULATI, P169 DEJONG JC, 2002, J AM SOC NEPHROL, V13, P1442 DEJONG JC, 2003, J BIOL CHEM, V278, P24302 DELPIRE E, 2002, ANNU REV PHYSIOL, V64, P803 DISTEFANO A, 1998, CELL PHYSIOL BIOCHEM, V8, P89 EVELOFF JL, 1986, AM J PHYSIOL, V250, F176 GAMBA G, 1993, P NATL ACAD SCI USA, V90, P2749 GAMBA G, 1994, J BIOL CHEM, V269, P17713 GAMBA G, 1999, KIDNEY INT, V56, P1606 GAMBA G, 2000, CURR OPIN NEPHROL HY, V9, P535 GAMBA G, 2001, AM J PHYSIOL-RENAL, V281, F781 GERELSAIKHAN T, 2000, J BIOL CHEM, V275, P40471 GIMENEZ I, 2002, J BIOL CHEM, V277, P8767 GIMENEZ I, 2003, J BIOL CHEM, V278, P26946 HAAS M, 1991, AM J PHYSIOL, V260, C791 HEBERT SC, 1981, AM J PHYSIOL, V241, F432 HEBERT SC, 1981, AM J PHYSIOL-RENAL, V241, F421 HEBERT SC, 2004, PFLUG ARCH EUR J PHY, V447, P580 HOOVER RS, 2003, J AM SOC NEPHROL, V14, P271 IGARASHI P, 1995, AM J PHYSIOL, V269, F406 KUNCHAPARTY S, 1999, AM J PHYSIOL-RENAL, V277, F643 KURTZ I, 1998, KIDNEY INT, V54, P1396 LAUF PK, 1984, J MEMBRANE BIOL, V77, P57 MAYAN H, 2002, J CLIN ENDOCR METAB, V87, P3248 MEADE P, 2003, AM J PHYSIOL-RENAL, V284, F1145 MOLONY DA, 1987, AM J PHYSIOL 2, V252, F177 MONROY F, 2000, AM J PHYSIOL-RENAL, V279, F161 MORENO E, 2004, J BIOL CHEM, V279, P16553 MOUNT DB, 1999, AM J PHYSIOL-RENAL, V276, F347 MOUNT DB, 2001, CURR OPIN NEPHROL HY, V10, P685 PAYNE JA, 1994, P NATL ACAD SCI USA, V91, P4544 PLATA C, 1999, AM J PHYSIOL-RENAL, V276, F359 PLATA C, 2001, AM J PHYSIOL-RENAL, V280, F574 PLATA C, 2002, J BIOL CHEM, V277, P11004 SABATH S, 2004, AM J PHYSL RENAL PHY STARREMANS PGJF, 2003, J AM SOC NEPHROL, V14, P3039 SUN A, 1991, J MEMBRANE BIOL, V120, P83 VAZQUEZ N, 2002, AM J PHYSIOL-RENAL, V282, F599 WILSON FH, 2001, SCIENCE, V293, P1107 WILSON FH, 2003, P NATL ACAD SCI USA, V100, P680 XU JC, 1994, P NATL ACAD SCI USA, V91, P2201 YANG CL, 2003, J CLIN INVEST, V111, P1039 YANG T, 1996, AM J PHYSIOL-RENAL, V271, F691NR 44TC 1PU SPRINGERPI NEW YORKPA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATESSN 0065-2598J9 ADVAN EXPERIMENT MED BIOLJI Adv.Exp.Med.Biol.PY 2004VL 559BP 55EP 65PG 11SC Medicine, Research & ExperimentalGA BDB39UT ISI:000232359300005ERPT SAU Pasantes-Morales, H Lezama, R Franco, RTI Are membrane tyrosine kinase receptors involved in osmotransduction?SO CELL VOLUME AND SIGNALINGSE ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGYLA EnglishDT ArticleID GROWTH-FACTOR RECEPTOR; REGULATORY VOLUME DECREASE; P38 MAP KINASE; CELL-VOLUME; SIGNALING PATHWAYS; ACTIVATED PROTEIN; EFFLUX PATHWAYS; CHANNELS; TAURINE; STRESSC1 Univ Nacl Autonoma Mexico, Inst Fisiol Celular, Dept Biofis, Mexico City 04510, DF, Mexico.RP Pasantes-Morales, H, Univ Nacl Autonoma Mexico, Inst Fisiol Celular, Dept Biofis, Ciudad Univ, Mexico City 04510, DF, Mexico.EM rofranco@ifc.unam.mxCR ABDULLAEV IF, 2003, J PHYSIOL-LONDON, V549, P749 BASSAVAPPA S, 1998, J NEUROPHYSIOL, V79, P1441 BOUDREAU NJ, 1999, BIOCHEM J, V339, P481 CARDIN V, 2003, GLIA, V44, P119 CHENG H, 2002, J CELL PHYSIOL, V192, P234 CREPEL V, 1998, J NEUROSCI, V18, P1196 CROUCH MF, 2001, J CELL BIOL, V152, P263 DENT P, 2003, RADIAT RES, V159, P283 FERANCHAK AP, 1998, J BIOL CHEM, V273, P14906 FRANCO R, UNPUB MECH ATP POTEN FRANCO R, 2004, PFLUG ARCH EUR J PHY, V447, P830 FURST J, 2002, EUR J PHYSL, V441, P1 HACKEL PO, 1999, CURR OPIN CELL BIOL, V11, P184 HAUSSINGER D, 1999, GASTROENTEROLOGY, V116, P921 HOFFMANN EK, 2000, CELL PHYSIOL BIOCHEM, V10, P273 JAKAB M, 2002, CELL PHYSIOL BIOCHEM, V12, P235 JORISSEN RN, 2003, EXP CELL RES, V284, P31 KIRK K, 1998, ANNU REV PHYSIOL, V60, P719 LAMBERT IH, 1998, ADV EXP MED BIOL, V442, P269 LAMBERT IH, 2003, J MEMBRANE BIOL, V192, P19 LI CH, 2000, CELL SIGNAL, V12, P435 MORALESMULIA S, 2001, NEUROCHEM INT, V38, P153 MORO L, 1998, EMBO J, V17, P6622 NIISATO N, 1999, BIOCHEM BIOPH RES CO, V266, P547 NILIUS B, 1999, J PHYSIOL-LONDON, V516, P67 PASANTESMORALES H, 2000, CELL PHYSIOL BIOCHEM, V10, P361 PASANTESMORALES H, 2000, NEPHRON, V86, P414 PASANTESMORALES H, 2000, NEUROCHEM RES, V25, P1301 PRENZEL N, 2000, BREAST CANCER RES, V2, P184 RANE SG, 1999, ADV SEC MESS PHOSPH, V33, P107 ROSETTE C, 1996, SCIENCE, V274, P1194 SARDINI A, 2003, BBA-BIOMEMBRANES, V1618, P153 STUTZIN A, 1999, AM J PHYSIOL-CELL PH, V277, C392 TILLY BC, 1993, J BIOL CHEM, V268, P19919 TILLY BC, 1996, FEBS LETT, V395, P133 TILLY BC, 1996, MOL BIOL CELL, V7, P1419 VANDERWIJK T, 2000, CELL PHYSIOL BIOCHEM, V10, P289 VOMDAHL S, 2003, J BIOL CHEM, V278, P27088 ZENG FY, 1995, MOL CELL BIOCHEM, V142, P117NR 39TC 0PU SPRINGERPI NEW YORKPA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATESSN 0065-2598J9 ADVAN EXPERIMENT MED BIOLJI Adv.Exp.Med.Biol.PY 2004VL 559BP 301EP 312PG 12SC Medicine, Research & ExperimentalGA BDB39UT ISI:000232359300027ERPT JAU Goericke, R Venrick, E Mantyla, A Bograd, SJ Schwing, FB Huyer, A Smith, RL Wheeler, PA Hooff, R Peterson, WT Gaxiola-Castro, G Gomez-Valdes, J Lavaniegos, BE Hyrenbach, KD Sydeman, WJTI The state of the California Current, 2003-2004: A rare "normal" yearSO CALIFORNIA COOPERATIVE OCEANIC FISHERIES INVESTIGATIONS REPORTSLA EnglishDT ArticleID SUB-ARCTIC INFLUENCE; CURRENT SYSTEM; CLIMATE-CHANGE; PACIFIC-OCEAN; NORTHEAST PACIFIC; COLD HALOCLINE; CENTRAL OREGON; MARINE BIRD; WATER; DIETAB This report describes the state of the California Current System (CCS)-meteorological, physical, chemical, and biological-from January 2003 to the spring of 2004. The area covered in this report ranges from Oregon coastal waters to southern Baja California. Over the past year, most physical, chemical, and biological parameters were close to their climatological mean. Contributing to such "normal" conditions was the absence of a La Nina that had been expected after the previous year's El Nino. Noteworthy, however, are the cold and fresh anomalies in the upper 100-200 m that have been found over large areas of the CCS since 2002. Off Oregon these may have been responsible for increased productivity; off southern California these were associated with shallower nutriclines and subsurface chlorophyll maxima in the offshore areas. It is unclear if these anomalies are ephemeral or related to long-term changes in ocean climate. The effects of the hypothesized 1998 "regime shift" on the CCS are still difficult to discern, primarily because of other physical forcing varying on different time scales (e.g., El Nino/Southern Oscillation, ENSO, cycles; the "subarctic influence"; global warming). The resolution of many of these issues requires larger scale observations than are available now. Establishment of the Pacific Coast Ocean Observing System (PaCOOS) under the guidance of NOAA will be a crucial step toward achieving that goal.C1 Univ Calif San Diego, Scripps Inst Oceanog, Integrat Oceanog Div, La Jolla, CA 92093 USA. Oregon State Univ, Hatfield Marine Sci Ctr, Cooperat Inst Marine Resource Studies, Newport, OR 97365 USA. Ctr Invest Cient & Educ Super Ensenada, Dept Oceanog Biol, Ensenada 22860, Baja California, Mexico. NOAA, Pacific Fisheries Environm Lab, Natl Marine Fisheries Serv, Pacific Grove, CA 93950 USA. Oregon State Univ, Hatfield Marine Sci Ctr, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Newport, OR 97365 USA. Oregon State Univ, Coll Ocean & Atmospher Sci, Corvallis, OR 97331 USA. Ctr Invest Cient & Educ Super Ensenada, Dept Oceanog Fis, Ensenada 22860, Baja California, Mexico. Point Reyes Bird Observ, Marine Ecol Div, Conservat Sci Program, Stinson Beach, CA 94970 USA.RP Goericke, R, Univ Calif San Diego, Scripps Inst Oceanog, Integrat Oceanog Div, 9500 Gilman Dr, La Jolla, CA 92093 USA.EM rgoericke@ucsd.edu ahuyer@coas.oregonstate.eduCR *SIO, 2000, 0010 SIO ABRAHAM CL, 2004, MAR ECOL-PROG SER, V274, P235 AINLEY DG, 1995, MAR ECOL-PROG SER, V118, P69 BAKUN A, 1973, SSRF671 NOAA NMFS US BARTH JA, 2003, GEOPHYS RES LETT, V30, P8019 BOGRAD SJ, 2000, CAL COOP OCEAN FISH, V41, P26 BOGRAD SJ, 2003, GEOPHYS RES LETT, V30 BOND NA, 2003, GEOPHYS RES LETT, V30 BRINTON E, 2003, DEEP-SEA RES PT II, V50, P2449 CHAVEZ FP, 2003, SCIENCE, V299, P217 DURAZO R, UNPUB CIENCIAS MARIN DURAZO R, 2001, CAL COOP OCEAN FISH, V42, P29 FEINBERG LR, 2003, PROG OCEANOGR, V57, P363 FREELAND HJ, 2003, GEOPHYS RES LETT, V30 HAYWARD TL, 1999, CAL COOP OCEAN FISH, V40, P29 HUYER A, 2003, GEOPHYS RES LETT, V30 HYRENBACH KD, 2003, DEEP-SEA RES PT II, V50, P2537 KISTLER R, 2001, B AM METEOROL SOC, V82, P247 KOSRO PM, 2003, GEOPHYS RES LETT, V30 LAVANIEGOS BE, 2002, PROG OCEANOGR, V54, P33 LAVANIEGOS BE, 2003, DEEP-SEA RES, V50, P2493 LAVANIEGOS BE, 2003, EOS T AM GEOPHYS UNI, V84 LOGERWELL EA, 2003, FISH OCEANOGR, V12, P554 LYNN RJ, 1982, CALIF COOP OCEAN FIS, V30 LYNN RJ, 1998, CAL COOP OCEAN FISH, V39, P25 MACKAS DL, 2001, CAN J FISH AQUAT SCI, V58, P685 MACKAS DL, 2005, DEEP SEA RES 2, V51, P875 MANTUA NJ, 1997, B AM METEOROL SOC, V78, P1069 MANTUA NJ, 2002, J OCEANOGR, V58, P35 MCGOWAN JA, 1990, TRENDS ECOL EVOL, V5, P293 MILLER AK, 2004, MAR ECOL-PROG SER, V281, P207 MILLS KL, IN PRESS FISH OCEANO MONTEVECCHI WA, 1993, BIRDS MONITORS ENV C, P217 MURPHREE T, 2003, GEOPHYS RES LETT, V30 OEDEKOVEN CS, 2001, MAR ECOL-PROG SER, V212, P265 PETERSON WT, 2002, PROG OCEANOGR, V54, P381 PETERSON WT, 2003, GEOPHYS RES LETT, V30 REID JL, 1976, J GOPHY RES-OCEAN AT, V81, P3100 REID JL, 1997, PROG OCEANOGR, V39, P263 SCHWING FB, 1996, NOAATMNMFSSWFSC231 U SCHWING FB, 2000, CAL COOP OCEAN FISH, V41, P148 SCHWING FB, 2002, CAL COOP OCEAN FISH, V43, P31 SMITH RL, 2001, PROG OCEANOGR, V49, P63 STRUB PT, 2003, GEOPHYS RES LETT, V30 SYDEMAN WJ, 2001, PROG OCEANOGR, V49, P309 VEIT RR, 1996, MAR ECOL-PROG SER, V139, P11 VENRICK E, 2003, CALCOFI REP, V44, P28 WHEELER PA, 2003, GEOPHYS RES LETT, V30 YEN PPW, 2004, J MARINE SYST, V50, P79NR 49TC 3PU SCRIPPS INST OCEANOGRAPHYPI LA JOLLAPA A-003, LA JOLLA, CA 92093 USASN 0575-3317J9 CAL COOP OCEAN FISH INVEST RJI Calif. Coop. Ocean. Fish. Invest. Rep.PD DECPY 2004VL 45BP 27EP 59PG 33SC FisheriesGA 979KBUT ISI:000232939700003ERPT JAU Felix-Uraga, R Gomez-Munoz, VM Quinonez-Velazquez, C Melo-Barrera, FN Garcia-Franco, WTI On the existence of Pacific sardine groups off the west coast of Baja California and southern CaliforniaSO CALIFORNIA COOPERATIVE OCEANIC FISHERIES INVESTIGATIONS REPORTSLA EnglishDT ArticleID CAERULEA; SAGAX; ANCHOVY; FISHERYAB Three possible Pacific sardine groups were detected using monthly catch and sea surface temperature (SST) data from landing ports of Magdalena Bay, Cedros Island, and Ensenada in Mexico, and San Pedro in the United States. With the use of temperature-at-catch criteria, the groups were clearly defined by monthly periods when maximum catches were observed and at specific intervals of SST: one at temperatures above 22 degrees C, one between 17 degrees and 22 degrees C, and a third below 17 degrees C. Assuming that the observed patterns are indicative of sardine stock structure, this method also serves as a practical approach to partitioning and attributing the catch data of each fishing zone to each sardine group, thus improving estimates of population abundance from stock-assessment models. A conceptual model of time-space distribution is proposed to describe the occurrence of Pacific sardine along the west coast of Baja California and southern California. This model mainly explains the seasons of higher abundance of the resource in the different fishing areas.C1 CICIMAR, La Paz, Baja Calif Sur, Mexico. CRIP, El Sauzal De Rodriguez, Baja California, Mexico.RP Felix-Uraga, R, CICIMAR, Apartado Postal 592, La Paz, Baja Calif Sur, Mexico.EM rfelix@ipn.mxCR BARNES JT, 199