نتایج جستجو برای: ds
تعداد نتایج: 18331 فیلتر نتایج به سال:
Dietary supplements (DS) may influence cancer prognosis. Their use in cancer patients has been described in the United States, but data are largely lacking in Europe and notably in France. The present study's objectives were (1) to assess DS use and its sociodemographic, lifestyle, and dietary correlates in a large sample of French cancer survivors; (2) to evaluate the involvement of physicians...
We previously reported that inappropriate renal vasoconstriction in Dahl salt-sensitive (DS) rats fed high NaCl diets may cause sodium retention. The present study examined the distribution and elimination of Na in DS and Dahl salt-resistant (DR) rats, and we determined whether an abnormality in renal function might also cause sodium retention in DS rats. Following an intravenous bolus of 4 mCi...
Dual-specificity thyrosine phosphorylation-regulated kinase 1A (DYRK1A) is a strong therapeutic target to ameliorate cognitive functions of Down Syndrome (DS). Genetic normalization of Dyrk1a is sufficient to normalize early cortical developmental phenotypes in DS mouse models. Gyrencephalic human neocortical development is more complex than that in lissencephalic mice; hence, cerebral organoid...
The conserved Hippo tumor suppressor pathway is a key signaling pathway that controls organ size in Drosophila. To date a signal transduction cascade from the Cadherin Fat at the plasma membrane into the nucleus has been discovered. However, how the Hippo pathway is regulated by extracellular signals is poorly understood. Fat not only regulates growth but also planar cell polarity, for which it...
Two isozymes of 3-deoxy-d-arabino-heptulosonate 7-phosphate (DAHP) synthase, denoted DS-Mn and DS-Co, were identified following DEAE-cellulose chromatography of crude extracts prepared from suspension-cultured cells of Nicotiana silvestris. The strikingly different properties of the isozymes allowed the development of assays for the selective detection of either isozyme in samples containing a ...
سلول های دندریتیک (dcs) دسی جوا مهمترین سلول های عرضه کننده آنتی ژن موجود در مخاط رحم می باشند که در القای تحمل جنین توسط سیستم ایمنی مادر در شرایط طبیعی حاملگی نقش دارند. هدف مطالعه حاضر بررسی فراوانی، پراکندگی و فنوتیپ سلولهای دندریتیک دسی جوا در حاملگی مستعد سقط و حاملگی طبیعی موش بود. همچنین تاثیر عوامل محلول موجود در ریز محیط دسی جوا در این دو نوع حاملگی بر عملکرد سلولهای دندریتیک طحالی مو...
A set of dendrimeric silica (DS) reinforced polyethylene-based nanocomposites is prepared using a novel and straightforward in-situ catalyst supporting procedure by means “in-situ” polymerization technique, labeled DS-SA. These materials are characterized with regard to molar masses, filler dispersion, thermal stability, crystalline characteristics, properties mechanical response then compared ...
We report the results of a precise measurement of the Ds meson lifetime based on 1662± 56 fully reconstructed Ds → φπ decays, from the charm hadroproduction experiment E791 at Fermilab. Using an unbinned maximum likelihood fit, we measure the Ds lifetime to be 0.518 ± 0.014 ± 0.007 ps. The ratio of the measured Ds lifetime to the world average D0 lifetime [1] is 1.25 ± 0.04. This result differs...
The differentiated services (DS) paradigm has emerged as a scalable approach to provide QoS for unicast communication in the Internet. Utilizing the DS to provide QoS for multicast poses several challenges because of the multi-point aspect, dynamic group membership, and heterogeneous receiver resource requirements of multicast. Existing proposals to accomplish this goal either require extra per...
Prospective cohort studies show that Down's syndrome (DS) is an independent risk factor for hospitalization for RSV bronchiolitis. It is unknown whether this observation has been translated into specific management for DS children. The primary goal was to assess the knowledge of healthcare providers in the European Union about RSV infection in DS children and to determine whether it influenced ...
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