Pyrogenic carbon (PyC) is an important component of the global soil carbon (C) pool, but its fate, persistence, and loss dynamics in contrasting soils and environments under planted field conditions are poorly understood. To fill this knowledge gap, a 13C-labelled biochar, as a surrogate material for PyC, produced from Eucalyptus saligna by slow pyrolysis (450°C; δ13C -36.7‰) was surface (0-10 ...

En las sociedades antiguas y actuales la estructura social está determinada por el parentesco patrón de residencia posmarital que garantizan supervivencia estabilidad comunidad. La población antigua costa valle Azapa brinda una oportunidad única para analizar relaciones sociales establecer su evolución sustentada desarrollo adaptación a los cambios producidos durante 5000 años. Para realización...

All academic disciplines include research, and students in research programmes should have a solid understanding about basic principles. Owing to generate perfect graduate, postgraduate teachers must guarantee that gain the ability do using recognised procedures connected with specific educational sub-disciplines. Many factors may affect attitude of college students. A deep probe on location le...

Stable isotopes in teeth are providing important correlations between ancient people and the geographical location of their childhood homes. In an exciting new application, the authors measured the varying signatures of strontium, oxygen and carbon isotopes in the teeth of a sequence of people buried in Thailand during the period of the introduction and intensification of agriculture. Prelimina...

This ethnographic study explores an anomaly in the reproductive health situation of poor rural women in Bangladesh, namely the coexistence of significant fertility reduction at the same time as continued high maternal mortality due to dependency on home deliveries in the absence of skilled health professionals and health complications resulting from unsafe abortions. Inspired by the feminist co...

Using recent survey data from the Panel Study of Family Dynamics (PSFD) on 1,655 married persons born in 1964-1976 in southeastern China and Taiwan, we studied coresidence with elderly parents using a multinomial probit model for coresidence type and an ordered probit model for residential distance. The study yielded four findings: (a) Patrilocal coresidence was more prevalent in Taiwan than in...