达尔文对物种的生存感兴趣,不过也涉及生殖——一个自然历史博物馆自己的研究者已经投入大量工作的领域。
Darwin was interested in the survival of species, but also in reproduction, an area to which the NHM's own researchers have devoted a lot of work.
一些研究者认为,摄取这种物质会影响生殖系统和神经系统的发育,并有可能诱发癌症。
Some researchers are convinced that ingesting the chemical can interfere with development of the reproductive and nervous systems and possibly promote cancer.
参与者谈到了由于保守态度的增长而带来的巨大社会挑战,持这种态度的人质疑妇女的作用以及她们控制自身生殖健康的能力。
Participants spoke of enormous social challenges posed by an increase in conservative attitudes that question the role of women and their ability to control their own reproductive health.
这些透露身份的捐精者后代最终有一半联系了自己的捐精者父亲,有些人还与捐精者父亲见了面——数据来源于美国生殖医学协会在旧金山的会议。
At least half of the group did eventually contact their donor father and some met him, says data released at the American Society for Reproductive Medicine meeting in San Francisco.
然而,由于海藻爆发生殖产生的赤潮现象,发生次数却越来越多,这是游泳者、水手、甚至是通过卫星检测海域的人有目共睹的。
Increasingly, though, swimmers, sailors and even those who monitor the sea with the help of satellites are encountering highly visible algal blooms known as red tides.
不列颠生殖协会(BFS)希望得到更多资源以满足潜在捐精者在工作时间后能够去那些关门较迟的诊所捐精。
The BFS wants more resources needed to run late-opening clinics to accommodate would-be donors after normal working hours.
在人类生殖期刊上,研究者公布了一份为期十年的在十万三千的超过50岁的退休男性中的一项调查。
The researchers, reporting in the journal Human Reproduction, followed more than 130, 000 men who were retired and over 50 for a decade.
当挑一只种母做繁殖的时候,繁殖者必须懂得种狗母亲的结构和生殖记录。
When selecting a stud dog for breeding, the breeder must study the structure and the reproductive record of the stud dog's dam.
位于巴黎旨在辅助生殖的Eylau中心的研究者,及其同事分析了超过21000宫内人工受精(IUIs)的病例结果。
Researcher Stephanie Belloc of the Eylau Centre for Assisted Reproduction in Paris and colleagues analyzed the outcomes of more than 21,000 intrauterine inseminations (IUIs).
研究者提出,人脑大小的增加受能量输入的稳定化和来自运动、生长及生殖的能量的转向的综合影响。
We propose that human encephalization was made possible by a combination of stabilization of energy inputs and a redirection of energy from locomotion, growth and reproduction.
目前有关甲醛和苯单独作用对生殖系统功能损伤的文献资料较多,但对于二者联合作用所造成生殖毒性的研究还少见报道。
Now there are lots of reports about reproduction system function damage induced by formaldehyde or benzene, but few about reproduction toxicity of joint exposure to the two substances.
特发性性早熟患儿与正常青春发育者相比,其内生殖器官的发育较不成熟,体积相对较小。
In comparison with normal pubertal development, the development of internal genitalia in the girls with idiopathic precocious puberty was more immature and the size was relatively smaller.
波兰研究者格拉日娜·佳香斯卡最近设计了一项实验,旨在证明对称性强的女子是否能产生更高质量的关键生殖激素。
A Polish researcher named Grazyna Jasienska recently designed an experiment to determine whether symmetrical women have higher levels of the key reproductive hormone estradiol.
温度和姐妹种对轮虫的净生殖率和种群内禀增长率均有极显著影响,但两者的交互作用对其无显著性影响。
Both temperature and sibling species affected markedly the net reproductive rate and intrinsic rate of population growth, but their interactions did not appear to be significant.
换句话说,希望帮助绝望夫妇的个体研究者可以自己决定采取生殖细胞系基因转移方法。
In other words, an individual researcher, hoping to help a desperate couple, might decide on his or her own to pursue germ line gene transfer.
在人类生殖期刊上,研究者公布了一份为期十年的在十万三千的凌驾50岁的退休男性中的一项观测。
The researchers, reporting in the journal Human Reproduction, followed more than 130,000 men who were retired and over 50 for a decade.
关注这个问题的吸烟者应该及早戒烟或到当地的生殖实验室检查。
Concerned smokers should quit or be tested in a local andrology laboratory.
方法:采用多重pcr核酸探针杂交技术,对泌尿生殖系统传播疾病(STD)有症状者分泌物,用同一份处理标本与常规pcr法比较。
Methods: with multi-PCR-nucleic-acid probe, We tested the secretion specimens from STD patients with clinical symptoms and compared the results with those of the routine PCR.
结果目前泌尿生殖道CT或UU感染的男性就诊者较多,21~40岁组为高发人群,以沙眼衣原体感染为主,混合感染率达43。
Results There were more male patients than females. The incidence of infection was high in the 21 - 40 years old group. The main pathogen was CT, and the mixed infection rate reached 43.4%.
当繁殖者挑选了一只母犬做繁殖,繁殖者必须挑选一只有很好的生殖记录的优质母犬。
When a breeder chooses a dam for breeding, the breeder must select a well-constructed bitch with a good producing record.
当繁殖者挑选了一只母犬做繁殖,繁殖者必须挑选一只有很好的生殖记录的优质母犬。
When a breeder chooses a dam for breeding, the breeder must select a well-constructed bitch with a good producing record.
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