نتایج جستجو برای: 231 marker in lg
تعداد نتایج: 16991107 فیلتر نتایج به سال:
A few papers develop full-fledged methods to estimate LG models. Binsbergen and Koijen (2009) study a LG model with time-varying risk premium and growth rate of stocks. Bekker and Bouwman (2009) estimate a three-factor LG term structure model. Carr, Gabaix and Wu (2009) show how calculate options in closed form in a LG term structure model, and perform an empirical analysis of bonds and fixed-i...
We present an algorithm for the parameterized feedback vertex set problem that runs in time O((2 lg k + 2 lg lg k + 18)n). This improves the previous O(max{12, (4 lg k)}n) algorithm by Raman et al. by roughly a 2 factor (n ∈ O(n) is the time needed to multiply two n × n matrices). Our results are obtained by developing new combinatorial tools and employing results from extremal graph theory. We...
We give a priority queue that guarantees the worstcase cost of Θ(1) per minimum finding, insertion, and decrease; and the worst-case cost of Θ(lg n) with at most lg n + O( √ lg n) element comparisons per deletion. Here, n denotes the number of elements stored in the data structure prior to the operation in question, and lg n is a shorthand for max {1, log2 n}. In contrast to a run-relaxed heap,...
Bone morphogenetic protein 7 in the development and treatment of bone metastases from breast cancer.
Bone morphogenetic protein 7 (BMP7) counteracts the physiological epithelial-to-mesenchymal transition (EMT), a process that is indicative of epithelial plasticity. Because EMT is involved in cancer, we investigated whether BMP7 plays a role in breast cancer growth and metastasis. In this study, we show that decreased BMP7 expression in primary breast cancer is significantly associated with the...
Current AA recommendations for sows are to provide a fixed amount of AA intake throughout gestation; however, the demand for nutrients changes from maternal lean tissue in early gestation (EG) to fetal and mammary growth in late gestation (LG). The objective of this study was to determine the Lys requirement in EG (d 24 to 45) and LG (d 86 to 110) using the indicator AA oxidation method with si...
BACKGROUND Among patients with severe aortic stenosis (AS) and preserved ejection fraction, those with low gradient (LG) and reduced stroke volume may have an adverse prognosis. We investigated the prognostic impact of stroke volume using the recently proposed flow-gradient classification. METHODS AND RESULTS We examined 1704 consecutive patients with severe AS (aortic valve area <1.0 cm(2)) ...
in this research, 30 sugar beet breeding populations developed by crossing of sugar beet monogerm and multigerm male strile lines with nematode resistant wild sources (w-1009 contaning resistance gene from beta procumbens and w-1010 contaning resistance genes from beta maritima) were compared with resistant and susceptible checks with respect to nematode resistance and yield. the experiments we...
Lactobacilli Differentially Modulate mTOR and Wnt/ β-Catenin Pathways in Different Cancer Cell Lines
BACKGROUND Lactobacilli are a group of beneficial bacteria whose anti cancer effects have been evaluated in different cancer cell lines as well as animal models and human subjects. Such anti cancer effects can be exerted via different mechanisms such as modulation of immune response as well as inhibition of pathogens colonization. In addition, lactobacilli have direct cytotoxic effects against ...
The generalized conductance ϕ(G,H) between two weighted graphs G and H on the same vertex set V is defined as ratioϕ(G,H)=minS⊆VcapG(S,S¯)capH(S,S¯), where capG(S,S¯) total weight of edges crossing from S⊆V to S¯=V−S. We show that minimum eigenvalue λ(LG,LH) pair Laplacians LG LH satisfiesϕ(G,H)≥λ(LG,LH)≥ϕ(G,H)ϕ(G)/16, ϕ(G) standard G. A cut meets this bound can be obtained eigenvector corresp...
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