نتایج جستجو برای: fertility measures
تعداد نتایج: 402881 فیلتر نتایج به سال:
Aim . To evaluate the effectiveness of assisted reproductive technologies in women with infertility after surgical interventions on pelvic organs. Material and methods : We analyzed data 90 who approached Nasl Medical Center due to for IVF 2017-2020, whom different approaches treatment without organs anamnesis were applied at first stage. Results “A differentiated approach during stage a comple...
The beef industry has emphasized the improvement of feed utilization, as measured by modeling feed intake through performance traits to calculate residual feed intake (RFI). Evidence supports an inverse relationship between feed efficiency and reproductive function. The objective of this study was to determine the relationship of reproductive assessments and RFI unadjusted (RFI(Koch)) or adjust...
Doctors can now harvest eggs from frozen ovarian tissue implanted in a woman's forearm or abdomen. The technique is just one of several new treatment options that may soon be available for women who face both cancer and possible treatment-related infertility. The American Society for Clinical Oncology released guidelines on fertility options for cancer patients earlier this year, which has show...
BACKGROUND In the Netherlands, 30% of subfertile women are overweight or obese, and at present there is no agreement on fertility care for them. Data from observational and small intervention studies suggest that reduction of weight will increase the chances of conception, decrease pregnancy complications and improve perinatal outcome, but this has not been confirmed in randomised controlled tr...
BACKGROUND The Total Fertility Rate (TFR) is defined as the average number of births a woman would have if she were to live throughout the reproductive span and bear children at each age at the rates observed in a particular year or period. The current demographic explanation for decline in TFR is primarily attributed to an increase in postponement in pregnancy. Being cross-sectional, fertility...
Over the last 40 years or so English parish registers have been extensively analysed to create a range of demographic measures relating to mortality, fertility and nuptiality. This process has enabled the major population changes to be revealed from 1538, the date when parish registers were first ordered to be kept, until 1837, when a national system of civil registration was introduced.1 In ad...
Lifetime reproductive success and timing of reproduction are key components of life-history evolution. To understand the evolution of reproductive schedules, it is important to use a measure of fitness that is sensitive both to reproductive quantity and reproductive timing. There is a contradiction between the theory, which mainly focuses on the rate measures of fitness (r and lambda), and empi...
Building on recent European studies, we use the Survey of Income and Program Participation to provide the first broad, descriptive portrait of fertility differences within the U.S. college-going population by undergraduate field of study. We rely on multilevel event history models to investigate potential mechanisms linking field of study to delayed fertility and childlessness. We find a 10 per...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید