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Showing 25 to 36 of 1101 entries
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Bias in the allocation of treatments by random numbers.

Science (New York, N.Y.)

HERRERA L.
PMID: 13267468
Science. 1955 Oct 28;122(3174):828-9. doi: 10.1126/science.122.3174.828.

No abstract available.

Direct measurement of the pion valence-quark momentum distribution, the pion light-cone wave function squared.

Physical review letters

Aitala EM, Amato S, Anjos JC, Appel JA, Ashery D, Banerjee S, Bediaga I, Blaylock G, Bracker SB, Burchat PR, Burnstein RA, Carter T, Carvalho HS, Copty NK, Cremaldi LM, Darling C, Denisenko K, Deval S, Fernandez A, Fox GF, Gagnon P, Gerzon S, Gobel C, Gounder K, Halling AM, Herrera G, Hurvits G, James C, Kasper PA, Kwan S, Langs DC, Leslie J, Lichtenstadt J, Lundberg B, MayTal-Beck S, Meadows B, de Mello Neto JR, Mihalcea D, Milburn RH, de Miranda JM, Napier A, Nguyen A, d'Oliveira AB, O'Shaughnessy K, Peng KC, Perera LP, Purohit MV, Quinn B, Radeztsky S, Rafatian A, Reay NW, Reidy JJ, dos Reis AC, Rubin HA, Sanders DA, Santha AK, Santoro AF, Schwartz AJ, Sheaff M, Sidwell RA, Slaughter AJ, Sokoloff MD, Solano J, Stanton NR, Stefanski RJ, Stenson K, Summers DJ, Takach S, Thorne K, Tripathi AK, Watanabe S, Weiss-Babai R, Wiener J, Witchey N, Wolin E, Yang SM, Yi D, Yoshida S, Zaliznyak R, Zhang C.
PMID: 11384344
Phys Rev Lett. 2001 May 21;86(21):4768-72. doi: 10.1103/PhysRevLett.86.4768.

We present the first direct measurements of the pion valence-quark momentum distribution which is related to the square of the pion light-cone wave function. The measurements were carried out using data on diffractive dissociation of 500 GeV/c pi(-) into...

Search for rare and forbidden Charm Meson decays D0 --> Vl+l- and hhll.

Physical review letters

Aitala EM, Amato S, Anjos JC, Appel JA, Ashery D, Banerjee S, Bediaga I, Blaylock G, Bracker SB, Burchat PR, Burnstein RA, Carter T, Carvalho HS, Copty NK, Cremaldi LM, Darling C, Denisenko K, Devmal S, Fernandez A, Fox GF, Gagnon P, Gobel C, Gounder K, Halling AM, Herrera G, Hurvits G, James C, Kasper PA, Kwan S, Langs DC, Leslie J, Lundberg B, Magnin J, MayTal-Beck S, Meadows B, de Mello Neto JR, Mihalcea D, Milburn RH, de Miranda JM, Napier A, Nguyen A, d'Oliveira AB, O'Shaughnessy K, Peng KC, Perera LP, Purohit MV, Quinn B, Radeztsky S, Rafatian A, Reay NW, Reidy JJ, dos Reis AC, Rubin HA, Sanders DA, Santha AK, Santoro AF, Schwartz AJ, Sheaff M, Sidwell RA, Slaughter AJ, Sokoloff MD, Solano J, Stanton NR, Stefanski RJ, Stenson K, Summers DJ, Takach S, Thorne K, Tripathi AK, Watanabe S, Weiss-Babai R, Wiener J, Witchey N, Wolin E, Yang SM, Yi D, Yoshida S, Zaliznyak R, Zhang C.
PMID: 11328072
Phys Rev Lett. 2001 Apr 30;86(18):3969-72. doi: 10.1103/PhysRevLett.86.3969.

We report results of a search for flavor-changing neutral current (FCNC), lepton flavor, and lepton-number violating decays of the D0 (and its antiparticle) into three and four bodies. Using data from Fermilab charm hadroproduction experiment E791, we examine modes...

[Thoraco-abdominal ectopia cordis. Presentation of a case].

Archivos del Instituto de Cardiologia de Mexico

HERRERA R, MEDINA C.
PMID: 13906812
Arch Inst Cardiol Mex. 1962 Jan-Feb;32:79-85.

No abstract available.

[Utilisation of organs proceeding from donors with heart failure: review of the pathogenesis of organic damage and the possible mechanisms of prevention].

Anales del sistema sanitario de Navarra

Ferrer JV, Herrera J, Balen E, Lera JM.
PMID: 12891458
An Sist Sanit Navar. 1997 Jan-Apr;20(1):47-55. doi: 10.23938/ASSN.0597.

There is an evident imbalance between the number of patients awaiting a kidney transplant and the availability of organs proceeding from donors with brain death. A high number of patients die each day from heart failure, whose organs could...

Mercury determination by CV-AAS in wastewater and sewage sludge from a stabilization pond system.

Analytical and bioanalytical chemistry

Araujo K, Colina M, Mazurek R, Delgado J, Ledo H, Gutierrez E, Herrera L.
PMID: 15045398
Anal Bioanal Chem. 1996 Jun;355(3):319-20. doi: 10.1007/s0021663550319.

The mercury concentrations in wastewater and sewage sludge of a stabilization pond system have been evaluated. The system is built by three parallel facultative ponds followed by two systems of three maturation ponds in series. The samples of wastewater...

Gold binding by native and chemically modified hops biomasses.

Bioinorganic chemistry and applications

López ML, Gardea-Torresdey JL, Peralta-Videa JR, de la Rosa G, Armendáriz V, Herrera I, Troiani H, Henning J.
PMID: 18365087
Bioinorg Chem Appl. 2005;29-41. doi: 10.1155/BCA.2005.29.

Heavy metals from mining, smelting operations and other industrial processing facilities pollute wastewaters worldwide. Extraction of metals from industrial effluents has been widely studied due to the economic advantages and the relative ease of technical implementation. Consequently, the search...

Isostructuralism among bridge-flipped' isomeric benzylideneanilines and phenylhydrazones.

Acta crystallographica. Section B, Structural science

Ojala WH, Smieja JM, Spude JM, Arola TM, Kuspa MK, Herrera N, Ojala CR.
PMID: 17507762
Acta Crystallogr B. 2007 Jun;63:485-96. doi: 10.1107/S0108768107018034. Epub 2007 May 16.

Bridge-flipped' isomers may be defined as pairs of molecules related by a reversal of a bridge of atoms connecting two major parts of the individual molecules. This kind of isomerism is commonly found among benzylideneanilines and phenylhydrazones. Isostructural pairs...

Theory of connectivity for formally symmetric operators.

Proceedings of the National Academy of Sciences of the United States of America

Herrera I.
PMID: 16592459
Proc Natl Acad Sci U S A. 1977 Nov;74(11):4722-5. doi: 10.1073/pnas.74.11.4722.

A previous paper introduced the notion of complete connectivity conditions and developed variational principles for diffraction problems subjected to such restrictions. Here, an abstract definition of formally symmetric operators is given and it is shown that the problem of...

Stereoselective one-pot synthesis of substituted (4Z)-2-alkyl-4-benzylidene- 4H-1,3-benzothiazines.

The Journal of organic chemistry

Herrera A, Martínez-Alvarez R, Ramiro P, Sánchez A, Torres R.
PMID: 15202918
J Org Chem. 2004 Jun 25;69(13):4545-7. doi: 10.1021/jo049777r.

Substituted (4Z)-4-benzylidene-2-methyl-4H-1,3-benzothiazines (1). and (4Z)-2-ethyl-4-benzylidene-4H-1,3-benzothiazines (2). were synthesized by direct stereoselective reactions of S-phenyl ethanethioate or S-phenyl propanethioate with substituted benzyl nitriles in the presence of triflic anhydride.

General variational principles applicable to the hybrid element method.

Proceedings of the National Academy of Sciences of the United States of America

Herrera I.
PMID: 16592405
Proc Natl Acad Sci U S A. 1977 Jul;74(7):2595-7. doi: 10.1073/pnas.74.7.2595.

Functional valued operators are used to formulate diffraction problems in a general abstract form. Variational principles for this formulation are developed. They are then applied to derive results on the linearized theory of free surface flows previously reported. Applications...

Solution to spectroscopy challenge 9.

Analytical and bioanalytical chemistry

Martínez-Alvarez R, Herrera A, Ramiro P.
PMID: 15912396
Anal Bioanal Chem. 2005 Jul;382(5):1207-8. doi: 10.1007/s00216-005-3268-3.

No abstract available.

Showing 25 to 36 of 1101 entries