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Institution

University of Costa Rica

EducationSan José, Costa Rica
About: University of Costa Rica is a education organization based out in San José, Costa Rica. It is known for research contribution in the topics: Population & Venom. The organization has 9817 authors who have published 16781 publications receiving 238208 citations. The organization is also known as: UCR & Universidad de Costa Rica.
Topics: Population, Venom, Antivenom, Snake venom, Myotoxin


Papers
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Journal ArticleDOI
TL;DR: The compound Cu3(dpa)4Cl2, 1 (dpa = the anion of dipyridylamine), which was first synthesized and characterized in 1990, has been structurally characterized in three new crystal forms having Cu...Cu separations of 2.47-2.49 A and the possible existence of an exchange pathway in which the metal atoms interact directly with each other.
Abstract: The compound Cu3(dpa)4Cl2, 1 (dpa = the anion of dipyridylamine), which was first synthesized and characterized in 1990, has been structurally characterized in three new crystal forms having Cu···Cu separations of 2.47−2.49 A. Its magnetic properties have been studied fully. Reaction of Cu3(dpa)4Cl2 with 2 equiv of silver tetrafluoroborate yields Cu3(dpa)4(BF4)2 (2), a compound with a similar linear trinuclear structure but coordinated BF4 anions in each axial position and having shorter Cu···Cu distances of 2.40 A but similar magnetic properties. Least squares fitting of the magnetic susceptibility data for 1 and 2 gave isotropic g values of 2.007 and 2.130 and exchange parameters of −373 and −411 cm-1, respectively. This suggests the possible existence of an exchange pathway in which the metal atoms interact directly with each other.

67 citations

Journal ArticleDOI
01 Sep 2016-Stroke
TL;DR: The risk of recurrent ischemic stroke/TIA and death in ESUS is reliably stratified by CHADS2 and CHA2DS2-VASc scores.
Abstract: Background and Purpose—The risk of stroke recurrence in patients with Embolic Stroke of Undetermined Source (ESUS) is high, and the optimal antithrombotic strategy for secondary prevention is uncle...

67 citations

Journal ArticleDOI
01 Feb 2010-Toxicon
TL;DR: It is concluded that EchiTAb-Plus-ICP has a good preclinical neutralizing profile against homologous and heterologous viperid venoms from other sub-Saharan African locations and constitutes a promising therapeutic option for the treatment of snakebite envenoming in this region.

67 citations

Journal ArticleDOI
TL;DR: In this article, the authors consider the contribution of social interaction diffusion to fertility transition in Costa Rica focusing on person-to-person contagion and show an ordered spatial pattern suggestive of contagion between neighboring areas, and a dynamic regression model estimated from pooled time series data for 100 counties reveals inter-and within-county diffusion effects on birth control adoption net of socioeconomic and family planning program effects.
Abstract: A long-standing concern of sociologists is the contribution of diffusion processes to social change. This article considers the contribution of social interaction diffusion to the fertility transition in Costa Rica focusing on person-to-person contagion. Several prominent features of the Costa Rican transition suggest the existence of interaction diffusion effects notably its pervasiveness toward all socioeconomic strata and the lack of evidence of a downward shift in family size preferences. Maps of the timing of fertility transition show an ordered spatial pattern suggestive of contagion between neighboring areas. A dynamic regression model estimated from pooled time series data for 100 counties reveals inter- and within-county diffusion effects on birth control adoption net of socioeconomic and family-planning program effects. (authors)

66 citations

Journal ArticleDOI
TL;DR: WHR is the most accurate anthropometric indicator to screen for high risk of CHD, whereas BMI is almost uninformative.
Abstract: BACKGROUND: Cut points for defining obesity have been derived from mortality data among Whites from Europe and the United States and their accuracy to screen for high risk of coronary heart disease (CHD) in other ethnic groups has been questioned. OBJECTIVE: To compare the accuracy and to define ethnic and gender-specific optimal cut points for body mass index (BMI), waist circumference (WC) and waist-to-hip ratio (WHR) when they are used in screening for high risk of CHD in the Latin-American and the US populations. METHODS: We estimated the accuracy and optimal cut points for BMI, WC and WHR to screen for CHD risk in Latin Americans (n=18 976), non-Hispanic Whites (Whites; n=8956), non-Hispanic Blacks (Blacks; n=5205) and Hispanics (n=5803). High risk of CHD was defined as a 10-year risk > or =20% (Framingham equation). The area under the receiver operator characteristic curve (AUC) and the misclassification-cost term were used to assess accuracy and to identify optimal cut points. RESULTS: WHR had the highest AUC in all ethnic groups (from 0.75 to 0.82) and BMI had the lowest (from 0.50 to 0.59). Optimal cut point for BMI was similar across ethnic/gender groups (27 kg/m(2)). In women, cut points for WC (94 cm) and WHR (0.91) were consistent by ethnicity. In men, cut points for WC and WHR varied significantly with ethnicity: from 91 cm in Latin Americans to 102 cm in Whites, and from 0.94 in Latin Americans to 0.99 in Hispanics, respectively. CONCLUSION: WHR is the most accurate anthropometric indicator to screen for high risk of CHD, whereas BMI is almost uninformative. The same BMI cut point should be used in all men and women. Unique cut points for WC and WHR should be used in all women, but ethnic-specific cut points seem warranted among men.

66 citations


Authors

Showing all 9922 results

NameH-indexPapersCitations
Alberto Ascherio13646269578
Gervasio Gomez133184499695
Myron M. Levine12378960865
Hong-Cai Zhou11448966320
Edward O. Wilson10140689994
Mary Claire King10033647454
Olga Martín-Belloso8638423428
José María Gutiérrez8460726779
Cesare Montecucco8438227738
Rodolphe Clérac7850622604
Kim R. Dunbar7447020262
Paul J. Hanson7025119504
Hannia Campos6921015164
Jean-Pierre Gorvel6723115005
F. Albert Cotton66102327647
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202325
2022155
2021864
20201,009
2019894
2018834