نتایج جستجو برای: reproductive values

تعداد نتایج: 598609  

Journal: :Evolution; international journal of organic evolution 2003
Dany Garant Julian J Dodson Louis Bernatchez

A critical step in understanding the evolution and maintenance of alternative reproductive tactics is to obtain accurate comparisons of their fitness and to determine factors influencing individual status. In this study, we first used individual multilocus genotypic information to compare reproductive success between two alternative reproductive tactics of anadromous Atlantic salmon (Salmo sala...

Journal: :Occupational and environmental medicine 1995
A Stijkel L Reijnders

The objectives were to describe and discuss the current and proposed European occupational health policy on two categories of substances that pose serious effects: those potentially carcinogenic or genotoxic and those with toxic effects on reproduction. The precautionary principle was applied to setting standards for the workplace for those two categories of substances, to give an impression of...

Journal: :iranian journal of nursing and midwifery research 0
mitra zandi zohreh vanaki marziyeh shiva eesa mohammadi

a bstract   background: there are a few studies about commissioning mothers’ understanding from the surrogacy during 9 months of waiting for delivery in iran and other countries. this study was conducted with an aim to explore and explain the nature of concerns (experiences) of commissioning mothers. materials and methods:  a qualitative design with a conventional content analysis approach was ...

Journal: :nursing and midwifery studies 0
mahboubeh taebi department of midwifery, faculty of nursing and midwifery, isfahan university of medical sciences, isfahan, ir iran; department of midwifery, faculty of nursing and midwifery, isfahan university of medical sciences, isfahan, ir iran. tel: +98-9133252700

Renovation and modernization can lead to changes in various fields, including material and immaterial values of the family. The process of cultural modernization has also brought about changes in the socio-cultural context of societies that have led to changes in family values. Therefore, the present study was aimed at the effect of cultural modernization on family values among high school stud...

2017
Dannielle H Kulaw James H Cowan Melissa W Jackson

In studies done a decade apart, we provide evidence of a recent shift toward a slower progression to sexual maturity as well as reduced egg production, especially among young, small female red snapper, in the Gulf of Mexico (Gulf). Slower maturation rates (among fish ≤6 years old), lower GSI values and decreased spawning frequency were observed, and were especially pronounced in the northwester...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید