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ررسی مینیماکس بودن و هم متناهی بودن مدول های کوهمولوژی موضعی موضوع اصلی این رساله می باشد. در این راستا به بیان و اثبات چند قضیه می پردازیم. بدین منظور فرض کنید $r$ یک حلقه ی جابجایی و نوتری و $i$ ایده آلی از $r$ باشد. فرض کنید $m$ یک $-r$مدول ناصفر باشد. نشان می دهیم که $-n$ امین بعد متناهی برای هر $n in mathbb{n}_{circ}$ به صورت زیر می باشد: $$ f_{i}^{n}(m) := inf leftlb...
Molecular Inflammation Research Center for Aging Intervention (MRCA), College of Pharmacy, Pusan National University, Busan 609-735, Republic of Korea Graduate School of Science and Engineering for Research, University of Toyama, Toyama 930-8555, Japan Faculty of Pharmaceutical Sciences, Nagasaki University, Nagasaki 852-8131, Japan Department of Physiology, The University of Texas Health Scien...
where f(t |Θ) is the probability density of the coalescent time. Assuming free recombination between loci, the full likelihood is a product of each locus likelihood. In order to determine the likelihood we must determine the density f(t |Θ) for coalescent of two samples in the IM model. Wang and Hey (2009) find the time to the MRCA by explicitly integrating over all possible sample paths in the...
Populations of Arboridia kermanshah Dlabola is increasing in Isfahan vineyards. In this study, some morphological characteristics of the immature stages, over wintering sites, number of generations per year, and seasonal population fluctuations of this pest were studied in vineyards in Isfahan Province. Eggs showed apparently four distinct embryonic developmental stages. At 25.8 ±2˚C, developme...
Populations of Arboridia kermanshah Dlabola is increasing in Isfahan vineyards. In this study, some morphological characteristics of the immature stages, over wintering sites, number of generations per year, and seasonal population fluctuations of this pest were studied in vineyards in Isfahan Province. Eggs showed apparently four distinct embryonic developmental stages. At 25.8 ±2˚C, developme...
Recent statistical and computational analyses have shown that a genealogical most recent common ancestor (MRCA) may have lived in the recent past [Chang, J.T., 1999. Recent common ancestors of all present-day individuals. Adv. Appl. Probab. 31, 1002-1026. 1027-1038; Rohde, D.L.T., Olson, S., Chang, J.T., 2004. Modelling the recent common ancestry of all living humans. Nature 431, 562-566]. Howe...
Chemical differences between mid-ocean ridge basalts (MORBs) and ocean island basalts (OIBs) provide critical evidence that the Earth's mantle is compositionally heterogeneous. MORBs generally exhibit a relatively low and narrow range of (3)He/(4)He ratios on a global scale, whereas OIBs display larger variability in both time and space. The primordial origin of (3)He in OIBs has motivated hypo...
چکیده: این پژوهش مطالعه ای توصیفی است که به منظور بررسی مواد غذایی مصرف شده در تغذیه نیمروزی کودکان نوپا» صورت گرفته است. در این پژوهش ۹۰ کودک نوپای۳۰-۱۸ ماهه به صورت تصادفی از یکی از مراکز بهداشتی درمانی غرب تهران انتخاب شدند. ابزار گردآوری اطلاعات شامل پرسشنامه یاد آمد ۲۴ ساعته و مشخصات دموگرافیک بود که از طریق مصاحبه مستقیم با مادران تکمیل گردید و همچنین ترازو، متر نواری و متر کاغذی چسبیده ...
We demonstrate broadband frequency comb generation in the mid-infrared (MIR) from 2.3 to 3.5 μm in a Si(3)N(4) microresonator. We engineer the dispersion of the structure in the MIR using a Sellmeier equation we derive from experimental measurements performed on Si(3)N(4) films from the UV to the IR. We use deposition-anneal cycling to decrease absorption losses due to vibrational transitions i...
The number of segregating sites in a sample of DNA sequences and the age of the most recent common ancestor (MRCA) of the sequences in the sample are positively correlated. The value of the former can be used to estimate the value of the latter. Using the coalescent approach, we derive in this paper the joint probability distribution of the number of segregating sites and the age of the MRCA of...
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