نتایج جستجو برای: dim 307
تعداد نتایج: 10267 فیلتر نتایج به سال:
The quantum deformation of the oscillator algebra and its implications on the phase operator are studied from a view point of an index theorem by using an explicit matrix representation. For a positive deformation parameter q or q = exp(2πiθ) with an irrational θ, one obtains an index condition dim ker a − dim ker a † = 1 which allows only a non-hermitian phase operator with dim ker e iϕ − dim ...
در فصل سوم پایان نامه مدول های ?-کوتاه را معرفی می کنیم. مدول کوتاه همان مدول 0-کوتاه است، یعنی به ازای هر زیرمدول n از m ، n یا m/n نویتری است. با استفاده از این مفهوم بسیاری از نتایج مدول های کوتاه را به مدول های ?-کوتاه تعمیم می دهیم. نشان می دهیم اگر m یک مدول ?-کوتاه باشد ،که ? یک عدد ترتیبی شمارا است، هر زیرمدول m شمارا مولد است. همچنین نشان می دهیم اگر m یک مدول ?-کوتاه باشد شمارا مولد ...
DIM (3,3'-diindolylmethane), a small molecule compound, is a proposed cancer preventive agent that can be safely administered to humans in repeated doses. We report that administration of DIM in a multidose schedule protected rodents against lethal doses of total body irradiation up to 13 Gy, whether DIM dosing was initiated before or up to 24 h after radiation. Physiologic submicromolar concen...
Recent studies have revealed that 3,3-diindolylmethane (DIM) has antitumor effects in both in vivo and in vitro tumor models. However, the biological function of DIM in human gastric cancer cells is unknown. Genetic and biological studies have confirmed the importance of the novel Hippo tumor-suppressor pathway in regulating cell proliferation, apoptosis, organ size and tumorigenesis in mammals...
In this study we show that diindolylmethane (DIM) induces autophagy in ovarian cancer cells by regulating endoplasmic reticulum (ER) stress and AMPK. Treatment of SKOV-3, OVCAR-3 and TOV-21G ovarian cancer cells with varying concentrations of DIM for 24 hours resulted in a concentration dependent induction of autophagy as measured by flowcytometry. Electron microscopy confirmed the presence of ...
This study investigates the impact of three different instructional models, direct model (DIM), experiential learning (ELM), and their combinations (DIM-ELM) on enhancing critical thinking, metacognition, conceptual understanding in an introductory physics course. The included 84 first-year pre-engineering students aged 18-24 years who were enrolled course at two public science technology unive...
We prove the long-standing Eckmann{Ruelle conjecture in dimension theory of smooth dynamical systems. We show that the pointwise dimension exists almost everywhere with respect to a compactly supported Borel probability measure with non-zero Lyapunov exponents, invariant under a C 1+ diieomorphism of a smooth Riemannian manifold. Let M be a smooth Riemannian manifold without boundary, and f : M...
Human CD56(bright) natural killer (NK) cells possess little or no killer immunoglobulin-like receptors (KIRs), high interferon-gamma (IFN-gamma) production, but little cytotoxicity. CD56(dim) NK cells have high KIR expression, produce little IFN-gamma, yet display high cytotoxicity. We hypothesized that, if human NK maturation progresses from a CD56(bright) to a CD56(dim) phenotype, an intermed...
The inductive dimension dim(G) of a finite undirected graph G is a rational number defined inductively as 1 plus the arithmetic mean of the dimensions of the unit spheres dim(S(x)) at vertices x primed by the requirement that the empty graph has dimension −1. We look at the distribution of the random variable dim on the Erdös-Rényi probability space G(n, p), where each of the n(n− 1)/2 edges ap...
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