نتایج جستجو برای: s regions

تعداد نتایج: 1037645  

Taxonomically, Argentine mackerels were first considered as Scomber japonicus marplatensis and later as Scomber japonicus Houttuyn 1782, although, in the last years, different studies have suggested that South Atlantic mackerel species belongs to Scomber colias Gmelin 1789. These latter results, incorporated in the main fish databases (FishBase and Catalog of Fishes), promoted a phylogenetic st...

Journal: :Current Biology 1998
Chung-Gi Lee Shigeru Kondo Tasuku Honjo

Immunoglobulin (Ig) heavy chain class switch recombination occurs mainly by joining two switch (S) regions, segments of tandemly repeated DNA sequences that lie upstream of heavy chain constant region genes. The products of this recombination event are a chromosomal DNA joint and a 'looped-out' circular DNA joint. Although a previous study showed that 40% of chromosomal joints in the mu gene sw...

2006
E. Carretti G. Bernardi

We study the contamination of the B–mode of the Cosmic Microwave Background Polarization (CMBP) by Galactic synchrotron in the lowest emission regions of the sky. The 22.8-GHz polarization map of the 3-years WMAP data release is used to identify and analyse such regions. Two areas are selected with signal-to-noise ratio S/N < 2 and S/N < 3, covering ∼ 16% and ∼ 26% fraction of the sky, respecti...

Journal: :تحقیقات جغرافیایی 0
محمود حبیب اللهیان دانشگاه حکیم سبزواری احمد نوحه گر دانشکده محیط زیست دانشگاه تهران علیرضا کمالی منابع طبیعی محمود حبیب اللهیان دانشگاه حکیم سبزواری معصومه رخبین پردیس دانشگاهی قشم دانشگاه هرمزگان احمد نوحه گر دانشکده محیط زیست دانشگاه تهران

â increase in wastage of soil resources in watershed is a persistent challenge that with increase in population and pressure on natural sources and unstable plantation on gradient farms and soils cause production reduces on farms, and also decrease in daily ratio of farms to population can cause more pressure on lands and natural resources.lavarefin watershed placed in 60 km from bandarabass in...

2009
Bradley W. Hindman Deborah A. Haber Juri Toomre

Using high-resolution ring analysis (HRRA) we deduce subsurface flows within magnetic active regions and within quiet sun. With this procedure we are capable of measuring flows with a horizontal spatial resolution of 2◦ in heliographic angle (or roughly 20 Mm). From the resulting flow fields we deduce mean inflow rates into active regions, mean circulation speeds around active regions, and prob...

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