نتایج جستجو برای: 1850

تعداد نتایج: 4746  

2012
Yun Bu Yan Gao Mikhail B. Potapov Yun-Xia Luan

Littoral dipluran Parajapyx pauliani Pagés, 1959 was redescribed based on the specimens collected in Hainan Island, South China. The littoral habitat was confirmed for the species, as the first report of arenicolous dipluran in China. DNA barcoding fragment was sequenced for five Parajapyx species (18 individuals) from China, and this is the first report on DNA barcodes used for dipluran identi...

Journal: :Zootaxa 2014
G O Graening Yana Shcherbanyuk Maryam Arghandiwal

The first checklist of California dipluran taxa is presented with annotations. New state and county records are reported, as well as new taxa in the process of being described. California has a remarkable dipluran fauna with about 8% of global richness. California hosts 63 species in 5 families, with 51 of those species endemic to the State, and half of these endemics limited to single locales....

Journal: :Zootaxa 2015
Antonio Santos-Silva Maria Helena M Galileo

The authorship of Myzomorphus is attributed to Sallé (1850) and, consequently, its type species is Myzomorphus scutellatus Sallé, 1850. The year of publication of the work by Sallé is changed from 1849 to 1850. Comments on the syntypes of M. scutellatus are provided.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1380

توسعه طلبی بریتانیا در خلیج فارس مراحل مختلفی را در برمی گیرد که هر یک از این دوره ها شاخصه های خاص خود را دارد. بریتانیا نفوذ اولیه خود را از اوایل سده هفدهم میلادی آغاز کرده بود و تا اوایل سده نوزدهم این رویه را ادامه داد. از نیمه دوم سده نوزدهم بود که سیاستهای بریتانیا در خلیج فارس به اوج خود رسید و یک سیستم جدیدی برای اداره خلیج فارس به کار گرفته شد. چنانکه از اواسط قرن نوزدهم میلادی اداره ...

Journal: :Zootaxa 2014
Marianna V P Simões Marcela L Monné

A revision of the genus Mesomphalia Hope, 1839, is presented based on a detailed morphological study of all species, except M. ampliata Boheman, 1850 and M. albofasciculata Boheman, 1856. The genus and species are redescribed. One species is transferred to Stolas Billberg, 1820, as S. scrobiculata (Boheman, 1850) comb. nov.; one species is transferred to Cyrtonota Chevrolat, 1836, as C. pyramid...

2004
Stuart F. Taylor

I present light curves for two detached eclipsing binary stars in the region of the LMC cluster NGC 1850, which is possibly a young globular cluster still in formation. One, a likely O-type star, is a newly detected eclipsing binary in the region of the very young subcluster NGC 1850A. This binary is among a small number of highly massive O-type stars in binary systems found in LMC clusters. Th...

2004
Stuart F. Taylor

I present light curves for two detached eclipsing binary stars in the region of the LMC cluster NGC 1850, which is possibly a young globular cluster still in formation. One, a likely spectral type O star, is a newly detected eclipsing binary in the region of the very young subcluster NGC 1850A. This binary is among a small number of highly massive O-type stars in binary systems found in LMC clu...

2004
L. Sidoli A. N. Parmar T. Oosterbroek

We report on preliminary results from our XMM-Newton observation of the Low Mass X-ray Binary 4U 1850-087, located in the galactic globular cluster NGC 6712. It is an ultracompact binary system, with an orbital period of 20.6 min. In previous low-resolution X-ray observations 4U 1850-087 displayed a soft excess residual around 0.7 keV, possibly indicative of the presence of a high Ne/O ratio, a...

2015
Tanushree Pandit Vijay K. Jidigam Cedric Patthey

The eye has served as a classical model to study cell specification and tissue induction for over a century. Nevertheless, the molecular mechanisms that regulate the induction and maintenance of eye-field cells, and the specification of neural retina cells are poorly understood. Moreover, within the developing anterior forebrain, how prospective eye and telencephalic cells are differentially sp...

2014
Edwin J. Squirewell Xiaoyan Qin Michael W. Duffel

Although tamoxifen is a successful agent for treatment and prevention of estrogen-dependent breast cancer, its use has been limited by the low incidence of endometrial cancer. Human hydroxysteroid sulfotransferase 2A1 (hSULT2A1) catalyzes the formation of an a-sulfooxy metabolite of tamoxifen that is reactive toward DNA, and this has been implicated in its carcinogenicity. Also, hSULT2A1 functi...

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