نتایج جستجو برای: nan 190
تعداد نتایج: 15855 فیلتر نتایج به سال:
The enhanced principal rank characteristic sequence (epr-sequence) of an n×n matrix is a sequence `1`2 · · ·`n, where each `k is A, S, or N according as all, some, or none of its principal minors of order k are nonzero. There has been substantial work on epr-sequences of symmetric matrices (especially real symmetric matrices) and real skew-symmetric matrices, and incidental remarks have been ma...
1. Lactating grazing ewes, fistulated at the rumen and abomasum were either not supplemented or offered, individually, 600 g/d of either pelleted, molassed sugar-beet pulp ('energy' supplement) or a pelleted 1:1 (w/w) mixture of this feed and formaldehyde-treated soya-bean meal ('protein' supplement). Digesta flows at the abomasum were estimated from the concentrations of the markers CrEDTA and...
Let r ≥ 2 be an integer. A real number α ∈ [0, 1) is a jump for r if for any 2 > 0 and any integer m ≥ r, any r-uniform graph with n > n0(2, m) vertices and density at least α + 2 contains a subgraph with m vertices and density at least α+c, where c = c(α) > 0 does not depend on 2 and m. A result of Erdős, Stone and Simonovits implies that every α ∈ [0, 1) is a jump for r = 2. Erdős asked wheth...
Several novel N-arylpiperazine derivatives were synthesized and tested for their 1) affinity and functional activity on 5-hydroxytryptamine1A (5-HT1A) receptors in vitro; 2) activity in models predictive of antagonism at somatodendritic and postsynaptic 5-HT1A receptors; and 3) effects on the micturition reflex in anesthetized and conscious rats. These studies also included 1-(2-methoxyphenyl)-...
A cure for prostate cancer (CaP) will be possible only after a complete understanding of the mechanisms causing this disease to progress from androgen dependence to androgen independence. To carry on a careful characterization of the phenotypes of CaP cell lines before and after acquisition of androgen independence, we used two human CaP LNCaP sublines: LNCaP(nan), which is androgen dependent (...
m is a spoken dialect widely used in the south-eastern China and Taiwan. Just like Mandarin, Min-Nan speech is a monosyllabic and tonal language. Each character is pronounced as a syllable carrying a lexical tone. There are only 877 base-syllables and 8 tones including a degenerated one which is not used in modern Taiwanese. These 877 basesyllables also have the same initial-final structure lik...
A positive sequence (bn) is said to be almost increasing if there exists a positive increasing sequence cn and two positive constants A and B such that Acn ≤ bn ≤ Bcn (see [1]). Obviously every increasing sequence is almost increasing but the converse need not be true as can be seen from the example bn = ne(−1) n . Let ∑ an be a given infinite series with partial sums (sn). We denote by tn n-th...
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