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Registros recuperados: 7
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Demographic and Phenological Studies on David’s Spurge (Euphorbia davidii) in the Central Area of Buenos Aires Province, Argentina Planta Daninha
NÚÑEZ FRÉ,F.R.; JUAN,V.F.; SAINT ANDRÉ,H.M.; CHANTRE,G.R..
ABSTRACT: David’s Spurge is an spring-summer annual weed, present in the central area of Buenos Aires Province, Argentina. Field studies were carried out during 2011/12 and 2013/14 to assess demography and population dynamics and determine a thermal time scale of this species. At the experimental site, 1 m² quadrants were established as observational plots, four per cohort. The number of individuals at each phenological stage and from each cohort was recorded weekly. At the end of the experiment, all plots were harvested, and seed production was determined. A thermal time scale was established to identify the occurrence of the different phenological events. Three cohorts were detected, the first one emerged in mid-October, the second one in early November,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cohort; EUDA5; Life table; Weed; Thermal time; Euphorbiaceae.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100288
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Do Eating Patterns Follow a Cohort or Change Over a Lifetime? Answers Emerging from the Literature AgEcon
Wendt, Minh; Kinsey, Jean D..
With the rapidly increasing American elderly population, food companies, healthcare workers, and policy makers alike are asking whether the dietary habits and food consumption patterns of this growing segment of the U.S. population will follow those of current and past elderly people or whether their cohort will eat like they did when they were younger. The purpose of this report is to review what is known about changes in nutritional intake and food consumption patterns that are associated with cohorts (generational) and with the aging process in the U.S. population. Recent literature on cohort and aging effects related to food consumption indicates that the aging effect is greater than the cohort effect. That is, diets change as people age, due to...
Tipo: Working or Discussion Paper Palavras-chave: Food consumption; Cohort; Age effect; Food Consumption/Nutrition/Food Safety.
Ano: 2007 URL: http://purl.umn.edu/7071
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Hybrid capture as a tool for cervical lesions screening in HIV-infected women: insights from a Brazilian cohort BJID
Jalil,Emilia Moreira; Luz,Paula M.; Quintana,Marcel; Friedman,Ruth Khalili; Madeira,Rosa M. Domingues S.; Andrade,Angela Cristina; Chicarino,Janice; Moreira,Ronaldo Ismerio; Derrico,Monica; Levi,José Eduardo; Russomano,Fabio; Veloso,Valdilea Gonçalves; Grinsztejn,Beatriz.
ABSTRACT Introduction: Cervical cancer remains an important burden for HIV-infected women in the era of combination antiretroviral therapy. Recommendations for cervical screening in these women diverge and may include high-risk HPV (HRHPV) testing. We aimed to evaluate the clinical usefulness of a single HRHPV testing for cervical screening of HIV-infected women. Methods: 723 HIV-infected women from a Brazilian prospective cohort were included between 1996 and 2012. Inclusion criteria were: normal cervical cytology at baseline and having a HRHPV-test at baseline. We calculated incidence rates of any squamous intraepithelial lesion (SIL) and high grade SIL+ (HSIL+) and negative predictive values (NPV) within 12 and 36 months. Hazard Ratios were obtained...
Tipo: Info:eu-repo/semantics/article Palavras-chave: HPV; HIV; Women; Cohort; Incidence.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702018000100016
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Influenza A and B in a cohort of outpatient children and adolescent with influenza like-illness during two consecutive influenza seasons BJID
Machado,Clarisse M.; de Souza,Ana Carolina Mamana Fernandes; Romano,Camila Malta; dos Santos Freire,Wilton; Costa,Ângela Aparecida; Figueiredo,Walter Manso; Pannuti,Cláudio S.; Luna,Expedito J.A..
ABSTRACT Introduction Influenza is an important cause of morbimortality worldwide. Although people at the extremes of age have a greater risk of complications, influenza has been more frequently investigated in the elderly than in children, and inpatients than outpatients. Yearly vaccination with trivalent or quadrivalent vaccines is the main strategy to control influenza. Objectives Determine the clinical and molecular characteristics of influenza A and B infections in children and adolescents with influenza-like illness (ILI). Methods: A cohort of outpatient children and adolescents with ILI was followed for 20 months. Influenza was diagnosed with commercial multiplex PCR platforms. Results: 179 patients had 277 episodes of ILI, being 79 episodes of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Influenza; Outpatient; Children; Vaccine; Lineages; Phylogeny; Cohort.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100073
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Nine-year demography of the black-eared opossum Didelphis aurita (Didelphimorphia: Didelphidae) using life tables Zoologia
Kajin,Maja; Cerqueira,Rui; Vieira,Marcus V.; Gentile,Rosana.
A population of the black-eared opossum, Didelphis aurita Wied-Neuwied 1826, was studied during 1997-2006 by capture-mark-recapture in the Atlantic Forest in the state of Rio de Janeiro. Cohorts were established with females marked still in the pouch, classified into five age classes. Population parameters were estimated using life tables. Survival was type III and mortality was greatest in age classes I and II, just after weaning. Fecundity was inversely correlated with survival, reproductive value was inversely correlated with mortality and residual reproductive value was inversely correlated with fecundity. The intrinsic rate of increase was always close to zero and tended to be slightly negative. The black-eared opossum can be considered a good model...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic forest; Cohort; Intrinsic factors; Small mammals; Survival.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000200007
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Public Policy and Diet Quality: Impact of Prices on Nutrient Adequacy using French Expenditure Data from 1996 to 2005 AgEcon
Allen, Thomas G.; Allais, Olivier; Nichele, Veronique; Padilla, Martine.
This paper aims at simulating optimal prices satisfying public health recommendations in terms of nutrient adequacy. This implies to estimate a complete food demand system in order to compute price elasticities. Food consumption behaviors are described by an AI functional form [Deaton and Muellbauer(1980)] augmented to control for habit persistence. The demand system is estimated using the Iterated Least Square Estimator developed by Blundell and Robin (1999). We use French household expenditure data drawn from TNS Worldpanel covering 130 periods of 4 weeks from 1996 to 2005. Given the nature of our data, households are split into 8 cohorts based on two socio-demographic variables: date of birth and social status. A revised aggregation into 27 food groups...
Tipo: Conference Paper or Presentation Palavras-chave: Household survey data; Cohort; AI demand system; Nutrient adequacy; Diet quality; Fat tax policy; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Health Economics and Policy; D12; C33.
Ano: 2009 URL: http://purl.umn.edu/53335
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SEROLOGICAL SCREENING FOR INFECTIOUS CATTLE DISEASES: I. INFLUENCE OF REPRODUCTIVE STATUS Ciência Rural
Barajas-Rojas,Jose Alfonso; Riemann,Hans; Franti,Charles.
A cohort of 125 cows (Zebu-Holstein crosses) were screened every two months during a period of two years for IgG antibodies to 20 viral, bacterial, rickettsial and parasitic agents. The screening was performed on sera using the ELISA procedure. The IgG levels fluctuated during pregnancy in a regular and similar way for all the antigens tested. IgG reached its lowest levels in the fourth and seventh month of pregnancy, a significant increase ocurred during the last month of pregnancy and this was followed by a precipitous decline during the first month post partum. The IgG fluctuations associated with the different phases of reproductive status may interact with seasonal changes in IgG levels. The changes in IgG levels during pregnancy may have the result...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cohort; Serological screening; Pregnancy.
Ano: 1993 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781993000100013
Registros recuperados: 7
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