The graph shows the sex ratio in the age group of 0 to 4 years in China from 2013 to 2023.
Sex-ratio among mothers in families with a previous girl and in those with a previous boy, prevalence of indigenous medicine use and sex-ratio in those using medicines for sex selection. Overall there were 806 girls to 1000 boys. The sex-ratio was 720∶1000 if there was one previous girl...
Globally, cardiovascular diseases (CVD) have emerged as the primary cause of death and disability, and the highest burden of CVD is attributable to hypertension3. In 2017, high systolic blood pressure was the leading cause for 10.4 million deaths worldwide4. With the shift in age dimensions ...
Over the past decades, with the rapid popularity of assisted reproductive technology (ART) for infertility treatment, a growing number of babies were born from IVF or ICSI10. It was estimated that ART has contributed to the birth of over 5 million live born babies worldwide11. Notably, as w...
部分；面积；均衡 vt. 使成比例；使均衡；分摊 ratio n.(名词) 比，比率；【数】比例；系数；比值；【经】复本位制中金银的法定比价； 【律】判决理由 v.(动词)用比例方式表达；求出...的比值 The ratios of 1 to 5 and 20 to 100 are the same.1与5之比和20与100之比相同。
Secondary sex ratios of animals with genetically determined sex may considerably deviate from equality. These deviations may be attributed to several proxi
Several observations support the hypothesis that differences in synaptic and regional cerebral plasticity between the sexes account for the high ratio of males to females in autism. First, males are more susceptible than females to perturbations in genes
We exposed Japanese medaka (Oryzias latipes) to environmentally relevant concentrations of azinphos-methyl, chlorothalonil, endosulfan, and mixtures of all three to determine if combinations of these pesticides result in additive, less-than-additive, or more-than-additive effects. Medaka were exposed fro...
Several observations support the hypothesis that differences in synaptic and regional cerebral plasticity between the sexes account for the high ratio of males to females in autism. First, males are more susceptible than females to perturbations in genes
2013 to 2023 Age group 0-14 years and 65 years and older Supplementary notes The total age dependency ratio is 'the ratio of dependents--people younger than 15 or older than 64--to the working-age population--those ages 15-64. Data are shown as the proportion of dependents per 100 work...