the number of couples seeking consultation for infertility problems has steadily increased over the past decade, affecting 10%-15% of the sexually active population. abnormal semen production, a male factor infertility (mfi), is thought to be the cause of up to 50% of all infertilities in developed countries. there are potentially many different causes of male infertility, including hormonal, a...

This study aims to establish a relationship between the sampling scale and tree species beta diversity temperate forests and to identify the underlying causes of beta diversity at different sampling scales. The data were obtained from three large observational study areas in the Changbai mountain region in northeastern China. All trees with a dbh ≥1 cm were stem-mapped and measured. The beta di...

OBJECTIVE To review the epidemiology and causes of falls and fall-related injuries in nursing homes and to provide clinicians with a structured framework to evaluate and treat nursing home residents at risk for falls. DATA SOURCES All large-scale published studies documenting incidence, causes, risk factors, and preventive strategies for falls in nursing homes were reviewed. RESULTS The mea...

nvironment includes all living and non-living objects. We live in the environment and use the environmental resources like air, land and water to meet our needs. Development also means meeting the needs of the people. While meeting the ever-growing needs, we put pressure on the environment. When the pressure exceeds the carrying capacity of the environment to repair or replace itself, it create...

M. Gross and H. Heinrichs (eds.), Environmental Sociology: European Perspectives and Interdisciplinary Challenges, DOI 10.1007/978-90-481-8730-0_2, © Springer Science+Business Media B.V. 2010 Abstract For quite some time environmental sociology has been preoccupied with understanding the fundamental causes of environmental crises. It is only since the 1990s that attention has shifted stronger t...