Thiotaurine and hypotaurine contents in hydrothermal-vent polychaetes without thiotrophic endosymbionts: correlation With sulfide exposure [0.03%]
无硫营养内共生体的热液喷口环节动物中的硫代牛磺酸和低牛磺酸含量：与硫化物暴露的相关性
Paul H Yancey,Joanne Ishikawa,Brigitte Meyer et al.
Paul H Yancey et al.
Invertebrates at hydrothermal vents and cold seeps must cope with toxic H(2)S. One proposed protection mechanism involves taurine derivatives: At vents and seeps, many animals have high levels of hypotaurine and thiotaurine (a product of hy...
Changes in testosterone or temperature during the in vitro oocyte culture do not alter the sex ratio of bovine embryos [0.03%]
体外卵子培养过程中的睾酮或温度变化不会改变牛胚胎的性别比例
Carmen Díez,Pablo Bermejo-Alvarez,Beatriz Trigal et al.
Carmen Díez et al.
High follicular testosterone levels have been associated with a skew in the sex ratio in favor of males following in vitro fertilization, whereas egg incubation temperature has been found to influence sex ratio in some reptiles. The incubat...
Biochemical composition, lipoperoxidation, Na(+)/K(+)ATPase activity and reproduction of Hyalella castroi (amphipoda, dogielinotidae) fed with different diets [0.03%]
不同食物下Hyalella castroi（甲壳动物，Dogielinotidae）的生化组成、脂质过氧化作用、Na(+)/K(+)ATP酶活性和繁殖情况
Fernanda Severo Gering,Luiz Ferrúa Farias de Oliveira,Bibiana Kaiser Dutra et al.
Fernanda Severo Gering et al.
This study compared the effect of different diets on the biochemical composition (lipids, cholesterol, proteins and glycogen) and the levels of lipoperoxidation and activity of Na(+)/K(+)ATPase of Hyalella castroi. We also investigated some...
Does acquired resistance of rodent hosts affect metabolic rate of fleas? [0.03%]
宿主的获得性抗性是否影响鼠疫蚤的代谢率？
Irina S Khokhlova,Lusine Ghazaryan,Boris R Krasnov et al.
Irina S Khokhlova et al.
We studied whether (a) previous infestation of a rodent host with fleas and (b) the reproductive effort of fleas affect the rate of CO(2) emission in two flea species, host-specific Parapulex chephrenis and host-opportunistic Xenopsylla ram...
Are dispersal-dependent behavioral traits produced by phenotypic plasticity? [0.03%]
扩散依赖的行为特征由表型可塑性产生吗？
Sandrine Meylan,Michèle de Fraipont,Pedro Aragon et al.
Sandrine Meylan et al.
Dispersal is a common response to deteriorating conditions such as intense competition, food limitation, predation or parasitism. Although it provides obvious advantages, dispersal is often assumed to be costly. Selection is therefore likel...
Isolation and culture of primary bovine embryonic stem cell colonies by a novel method [0.03%]
一种新的分离和培养牛胚细胞系的方法
Shanbo Cao,Fang Wang,Zhisheng Chen et al.
Shanbo Cao et al.
Authentic bovine embryonic stem (ES) cell lines have not been established despite progress made for more than two decades. Isolation and culture of primary ES cell colonies are the first critical step towards establishment of stable ES cell...
Muscle senescence in short-lived wild mammals, the soricine shrews Blarina brevicauda and Sorex palustris [0.03%]
两种短命野生哺乳动物——钝尾田鼠（Blarina brevicauda）和沼泽田鼠（Sorex palustris）的肌肉衰老现象
Allyson G Hindle,John M Lawler,Kevin L Campbell et al.
Allyson G Hindle et al.
Red-toothed (soricine) shrews are consummate predators exhibiting the highest energy turnovers and shortest life spans (ca. 18 months) of any mammal, yet virtually nothing is known regarding their physiological aging. We assessed the emergi...
Detection of fruit by the Cerrado's marmoset (Callithrix penicillata): modeling color signals for different background scenarios and ambient light intensities [0.03%]
巴西凯拉杜国家公园金狮绒毛猴(Callithrix penicillata)的果实检测：不同背景和光照强度下的果实颜色信号模型研究
Eduardo Sosti Perini,Valdir Filgueiras Pessoa,Daniel Marques de Almeida Pessoa
Eduardo Sosti Perini
Among placental mammals, only primates have trichromatic color vision, however this is not a uniform condition. Under different genetic status, Old World monkeys have routine trichromacy, while New World monkeys show a visual polymorphism, ...
Aurora M Castilla,Anthony Herrel,Stefan Van Dongen et al.
Aurora M Castilla et al.
We compared eggshell strength in a group of falcon taxa including the peregrine falcon (Falco peregrinus peregrinus), the red shaheen falcon (F. peregrinus babylonicus), the saker falcon (F. cherrug), the gyr falcon (F. rusticolus) and some...