Results 11 to 20 of about 804,969 (117)

Tasas de deserción en la Universidad Estatal a Distancia de Costa Rica / Drop-outs from the Universidad Estatal a Distancia de Costa Rica

open access: yesActualidades Investigativas en Educación, 2008
La pretensión fundamental del presente trabajo es contribuir al conocimiento de la deserción estudiantil en la UNED; si bien es cierto, la deserción afecta directamente al estudiante, también es un síntoma de fallos en el sistema. El cambio que conlleva
Mario Castillo Sánchez
doaj   +1 more source

Comparison of the demographic parameters and survival of two phenotypes of Harmonia axyridis (Coleoptera: Coccinellidae)

open access: yesEuropean Journal of Entomology, 2015
This paper reports the results of a comparative study of the demographic parameters of two phenotypes of Harmonia axyridis Pallas, reared on the black bean aphid, Aphis fabae Scopoli at 25 ± 1°C, 65 ± 2% RH and a photoperiod of 16L : 8D.
Eleni ZEKI   +3 more
doaj   +1 more source

Mexican mortality 1990‒2016: Comparison of unadjusted and adjusted estimates

open access: yesDemographic Research, 2021
Background: Vital statistics registration and census counts for Mexico may be incomplete, resulting in unreliable mortality indicators. Objective: We evaluate unadjusted mortality estimates for Mexico during 1990‒2016 and compare them with other ...
Dana Glei   +3 more
doaj   +1 more source

Longevity in Slovenia: Past and potential gains in life expectancy by age and causes of death

open access: yesSlovenian Journal of Public Health, 2017
In Slovenia, longevity is increasing rapidly. From 1997 to 2014, life expectancy at birth increased by 7 and 5 years for men and women, respectively. This paper explores how this gain in life expectancy at birth can be attributed to reduced mortality ...
Lotrič Dolinar Aleša   +2 more
doaj   +1 more source

Death of the Magnate: Life Expectancy of the Magnatery in the Polish–Lithuanian Commonwealth Versus the Demography of the Western European Elites in the Early Modern Age

open access: yesPrzeszłość Demograficzna Polski, 2019
The aim of the article is to present life expectancy calculations for magnates, the elite of the nobility (but not an exact equivalent of European aristocracy) from the Polish-Lithuanian Commonwealth in the 16th–18th centuries (life tables for women and ...
Marzena Liedke
doaj   +1 more source

Costa Rican mortality 1950‒2013: An evaluation of data quality and trends compared with other countries

open access: yesDemographic Research, 2019
Background: Mortality estimates from various sources suggest that Costa Ricans experience record-high life expectancy at birth in Latin America and higher longevity than the populations of many high-income countries, although there is some uncertainty as
Dana Glei   +2 more
doaj   +1 more source

Demography of the over-exploited Mediterranean red coral (Corrallium rubrum L. 1758)

open access: yesScientia Marina, 2004
The precious octocoral, Corallium rubrum, endemic to the Mediterranean, has long been overexploited. A demographic approach to the conservation and management of this species would therefore be highly valuable.
G Santangelo   +3 more
doaj   +1 more source

Cancer incidence, mortality, and survivorship in African women: a comparative analysis (2016–2020)

open access: yesFrontiers in Global Women's Health
ObjectivesThis research aims to provide concrete insight into cancer incidence, mortality, and survivorship dynamics among African women between 2016 and 2020.MethodsThe study computes the Mortality-to-Incidence Ratio (MIR) for 53 countries in Africa ...
Chibuikem Chrysogonus Nwagwu   +1 more
doaj   +1 more source

Lifesaving, lifetimes and lifetables

open access: yesDemographic Research, 2005
Mortality change roils period rates. In the short term, conventional calculations of age-specific probabilities of death and life expectancy in the period immediately after the change depend on how many lives have been saved.
James W. Vaupel
doaj  

Life-table representations of family dynamics in the 21st century

open access: yesDemographic Research, 2017
Background: A key resource for cross-national comparative research on family dynamics (Andersson and Philipov 2002) is seriously outdated. Objective: We provide an update of the life-table estimates by Andersson and Philipov (2002) based on data from ...
Gunnar Andersson   +2 more
doaj   +1 more source

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