نتایج جستجو برای: 2x

تعداد نتایج: 3440  

Journal: :Journal of applied physiology 2007
Gary C Sieck Wen-Zhi Zhan Young-Soo Han Y S Prakash

Denervation (DNV) of rat diaphragm muscle (DIAm) decreases myosin heavy chain (MHC) content in fibers expressing MHC(2X) isoform but not in fibers expressing MHC(slow) and MHC(2A). Since MHC is the site of ATP hydrolysis during muscle contraction, we hypothesized that ATP consumption rate during maximum isometric activation (ATP(iso)) is reduced following unilateral DIAm DNV and that this effec...

2005
Zhi-Wei Sun ZHI-WEI SUN

In this paper we investigate mixed sums of squares and triangular numbers. By means of q-series, we prove that any natural number n can be written as x + (2y) + Tz with x, y, z ∈ Z and Tz = z(z + 1)/2, this is stronger than a conjecture of Chen. Also, we can express n in any of the following forms: x + 2y + Tz , x 2 + 2y + 2Tz , x 2 + 2y + 4Tz , x 2 + 4y + 2Tz , 2x + 2y + Tz , x 2 + 2Ty + 2Tz ,...

گیاه درمنه (.Artemisia spp) از تیره Asteraceae (Compositae) با حدود 34 گونه در ایران یکی از با اهمیت ترین جنسهای گیاهی می باشد. گسترش گونه های جنس درمنه و تعدد و شباهت نزدیک گونه ها به هم مشکلاتی را در شناخت آنها پیش می آورد. این جنس گونه های متنوعی دارد، به طوری که در پست ترین نقاط ایران یعنی حاشیه دریای خزر تا ارتفاعات بالای کوههای جبال بارز (4000 متر) گسترش داشته و رشد می یابند. در این مطالع...

Journal: :Genetics 1979
J E Madl R K Herman

Tetraploid stocks of Caenorhabditis elegans var. Bristol carrying autosomal and X-linked markers have been produced. Tetraploid hermaphrodites fall into two categories: those that give about 1% male self-progeny and those that give 25 to 40% male self-progeny. The former are basically 4A;4X--four sets of autosomes and four sex chromosomes--and the latter are 4A;3X. Males are 4A;2X. (Diploid her...

2004
R. Sartori A. H. Souza J. N. Guenther D. Z. Caraviello L. N. Geiger J. L. Schenk M. C. Wiltbank

Although studies have demonstrated reasonable pregnancy rates in single-ovulating heifers inseminated with sexed sperm, it is not yet clear if sexed sperm can be successfully used in superovulated females. Therefore, the objective of this trial was to determine fertilization rate and embryo quality in superovulated heifers inseminated with frozen-thawed Xchromosome bearing sperm at 2 different ...

Journal: :Journal of dairy science 2003
S A Hale A V Capuco R A Erdman

Increased milking frequency (IMF) at the beginning of lactation has been shown to increase milk yield not only during IMF but also after its cessation. The objectives of this experiment evaluated the effects of increased milking frequency initiated during early lactation on mammary growth and effects on milk yield (MY). Thirty-one cows were divided into treatment groups: 1) 2X: cows milked twic...

Journal: :Cytologia 2021

In this study, chromosome numbers of five Cardamine taxa [C. bulbifera Crantz, C. impatiens var. pectinata (Pall. ex DC.) Trautv., lazica Boiss. & Bal., tenera Gmel Mey. and graeca L.] from Turkey have been informed for the first time. The were determined as 2n=4x=24 in bulbifera, 2n=2x=16 tenera, 2n=2x=14 lazica, 2n=2x=12 graeca. Also, was different others with having satellite. Chromosomes st...

Journal: :Journal of clinical microbiology 2014
Noriyuki Nagano Yukiko Nagano Masami Toyama Kouji Kimura Keigo Shibayama Yoshichika Arakawa

We characterized penicillin-susceptible group B streptococcal (PSGBS) clinical isolates exhibiting no growth inhibition zone around a ceftibuten disk (CTB(r) PSGBS). The CTB(r) PSGBS isolates, for which augmented MICs of cefaclor and ceftizoxime were found, shared a T394A substitution in penicillin-binding protein 2X (PBP 2X) and a T567I substitution in PBP 2B, together with an additional G429S...

2005
Zhi-Wei Sun ZHI-WEI SUN

In this paper we prove that any natural number n can be written as x + y + Tz with x, y, z ∈ Z and Tz = z(z + 1)/2. Also, we can express n in any of the following forms: x + y + 2Tz , x 2 + 2y + Tz , x 2 + 2y + 2Tz , x 2 + 2y + 4Tz , x + 2Ty + 2Tz , x 2 + 4Ty + Tz , x 2 + 4Ty + 2Tz , 2x + Ty + Tz , 2x 2 + 2Ty + Tz , 2x 2 + 4Ty + Tz , Tx + 4Ty + Tz , 2Tx + 2Ty + Tz , 2Tx + 4Ty + Tz . Concerning ...

1993
Debao Chen

Every m th order cardinal spline wavelet is a linear combination of the functions fN (l) m+l (2x?j); j 2 Zg. Here the function N m is the m th order cardinal B-spline. In this paper we prove that the single function N (l) m+l (2x), or N (l) m+l (2x ? 1) is a wavelet when m and l satisfy some mild conditions. As l decreases, so does the support of the wavelet. When l increases, the smoothness of...

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