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تعداد نتایج: 11402264 فیلتر نتایج به سال:
The highly conserved tetranucleotide CAGT is located at the RNA start site of the transregulator gene ie-1 of Autographa californica nuclear polyhedrosis virus (AcMNPV). The presence of this motif within numerous baculovirus early promoters and its similarity to transcriptional initiators suggested a fundamental role in viral transcription regulation. To determine the function of the CAGT motif...
This article reviews the statisticalmodels that underpin institutional comparisons on the basis of outcome measures for their students. These multilevel models are developed to levels of complexity that match the problems posed. The strengths and limitations of inferences from these models are explored with examples taken from education. 385 A nn ua l R ev ie w o f St at is tic s an d It s A pp...
We are near the end of our proof of the Impagliazzo-Widgerson result that every exponential time problem has a polynomial-time transformation to an equivalent exponential-time problem which is hard on average. To recap from last time: Suppose L is a language decidable in time 2O(n). Let Ln be the characteristic function of L on inputs of length n, Ln : {0, 1} n → {0, 1}. Choose an arbitrarily s...
this thesis is presented 10 ghz voltage controlled ring oscillator for high speed application. the voltage controlled ring oscillator was designed and fabricated in 0.13یm cmos technology. the oscillator is 7-stages ring oscillator with one inverter replaced by nand-gate for shutting down in the ring oscillator during idle mode. tri-state inverter was used to control of 126 bit vector in ri...
In this paper, we describe our approach taken in the MSM2013 IE Challenge, which was aimed at concept extraction from microposts. The goal of the approach was to combine several existing NER tools which use different classification methods and benefit from their combination. Several NER tools have been chosen and individually evaluated on the challenge training set. We observed that some of the...
امروزه آلودگی آرسنیک (as) یکی از معضلات نگران کننده برای سلامت انسان به ویژه در مناطق صنعتی است. از این رو مطالعة روش های غیر متحرک کننده و عوامل مؤثر بر آن ضرورت می یابد. در این تحقیق، برخی عوامل مؤثر بر درصد غیر متحرک سازی[1] (ie) آرسنیک در خاک شامل زمان واکنش، ph اولیه، مقدار آهن صفر ((zvi، آهن دوظرفیتی [fe(ii)]، و زئولیت حاوی آهن مطالعه شد. آلوده سازی خاک به as(iii) در غلظت های 300 و 440 می...
سابقه و هدف: هدف از مطالعه حاضر، بررسی مقاومت به سطح بالای جنتامایسین و ژن‌های کدکننده آنزیمهای تغییردهنده آمینوگلیکوزید در انتروکوکوس فکالیس و انتروکوکوس فیسیوم جداشده از عفونت زخم سوختگی بود. مواد و روشها: پس از شناسایی سویه‌های انتروکوکوس فکالیس و انتروکوکوس فیسیوم، آزمون حساسیت آنتی‌بیوتیکی انجام شد. به‌منظور شناسایی سویه‌های HLGR از دیسک‌های جنتامایسین استفاده شد. آزمون PCR به‌منظور شناس...
This deliverable defines the evaluation strategies for the Information Extraction tools that are under development within the Dot.Kom project.
PROTO-INDO-EUROPEAN is the traditional name given to the ancestor language of the Indo-European family that is spread from Iceland to Chinese Turkestan and from Scandinavia to the Near East. A PROTO-LANGUAGE (Gk. prõtos ‘first’) refers to the earliest form of a language family presupposed by all of its descendants. There will forever be major gaps in the reconstruction of proto-languages, but a...
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