Understanding the causes and consequences of biases in the sex ratio at birth and of adults in species of mammals that have unusual life histories may help us know whether sex ratios are adaptive responses to ecological and evolutionary forces and may be important in conserving endangered species....
Using Demographic and Health Survey (DHS) maternity histories from sub-Saharan Africa, the study shows that the sex ratio at birth increases with the number of previous male births and decreases with the number of previous female births. For families with only males, the sex ratio increases ...
In order to evaluate the impact of assisted reproductive technology (ART) procedure and individual factors on the sex ratio of singletons and twins at birth afterin vitrofertilization (IVF) and intra-cytoplasmic sperm injection (ICSI) treatment in China. We conducted a retrospective cohort study in...
However, there was an important interaction between job stress category and partner income in some of the analyses. Partner income appears to attenuate the association between maternal job stress and sex ratios at moderate-income levels, and reverse it at high-income levels. Conclusions To our ...
For example, as competitive ability is sensitive to parameters including reproductive rate, carrying capacity and competition efficiency, the outcome of interspecific competition may be influenced by any process that alters these attributes. Although several such scenarios have been discussed, the influence...
P.6.a.015 Elevated ratio of serum glutamic oxaloacetic transaminase and glutamic pyruvic transaminase among alcoholics and opiate addict patientscustomizationsales strategycontext-dependent preferencesconfigurator tasksRetailers of consumer durables often enable customers to configure products; this study reveals ...
In Japan, the ratio of never-married men to married men has risen rapidly since the second half of the 1980s. In this paper, we focus on the disruption of the gender balance, and on the effect that this and education level have on marriage behaviour. We confirmed that the rise in the...
of mortality and morbidity due to malaria. However, these traditional methods have failed to achieve a reduction in malaria prevalence since 20161. A successful intervention towards disease eradication requires novel and more efficient technologies that are affordable and sustainable. In this regard, a...
In order to study the impact of procedures of IVF/ICSI technology on sex ratio in China, we conducted this multi-center retrospective study including 121,247 babies born to 93,895 women in China. There were 62,700 male babies and 58,477 female babies, making the sex ratio being 51.8% (...
HR stages are based on Arteriovenous Ratio (AVR) [6] which is considered an effective parameter for detection and grading of HR. The computation of AVR is based on precise and accurate calculation of Central Retinal Artery Equivalent (CRAE) as well as Central Retinal Venular Equivalent (CRVE)...