The Nicoya region of Costa Rica: a high longevity island for elderly males [0.03%]
哥斯达黎加尼科亚地区：长寿男性老人的聚集地
Luis Rosero-Bixby,William H Dow,David H Rehkopf
Luis Rosero-Bixby
Reliable data show that the Nicoyan region of Costa Rica is a hot spot of high longevity. A survival follow-up of 16,300 elderly Costa Ricans estimated a Nicoya death rate ratio (DRR) for males 1990-2011 of 0.80 (0.69-0.93 CI). For a 60-yea...
Leonid A Gavrilov,Natalia S Gavrilova
Leonid A Gavrilov
Studies of centenarians are useful in identifying factors leading to long life and avoidance of fatal diseases. In this article we consider several approaches to study effects of early-life and midlife conditions on survival to advanced age...
Design and implementation of an online weekly journal to study unintended pregnancies [0.03%]
意外怀孕研究的在线周记设计与实现
Jennifer S Barber,Yasamin Kusunoki,Heather H Gatny
Jennifer S Barber
In this article we describe new research to investigate unintended pregnancies during the transition to adulthood. The Relationship Dynamics and Social Life (RDSL) study begins with a 60-minute in-person interview about family background an...
On the age dynamics of learned societies-taking the example of the Austrian Academy of Sciences [0.03%]
以奥地利科学院为例的学习社团年龄变迁分析
Gustav Feichtinger,Maria Winkler-Dworak,Inga Freund et al.
Gustav Feichtinger et al.
In a hierarchical organisation of stable size the annual intake is strictly determined by the number of deaths and a statutory retirement age (if there is one). In this paper we reconstruct the population of the Austrian Academy of Sciences...
Institutions and the transition to adulthood: Implications for fertility tempo in low-fertility settings [0.03%]
制度与成年过渡阶段：低生育率环境下对生育节奏的影响
Ronald R Rindfuss,Sarah R Brauner-Otto
Ronald R Rindfuss
The number of countries experiencing very low fertility has been rising in recent years, garnering increasing academic, political and media attention. There is now widespread academic agreement that the postponement of fertility is a major ...