نتایج جستجو برای: روش ai
تعداد نتایج: 409273 فیلتر نتایج به سال:
Abstract Subject area classification is an important first phase in the entire process involved bibliometrics. In this paper, we explore possibility of using automated algorithms for classifying scientific papers related to Artificial Intelligence at document level. The current semimanual and journal based, a realization that, argue, opens up potential inaccuracies. To counter this, our propose...
background and aims: avian influenza (ai) h9n2 subtype was first reported to infect turkeys in the united states in 1966 and has been panzootic in europe and asia. the impact of avian influenza caused by h9n2 viruses in iran is now significantly more severe than in previous years. methods: sequence analysis and phylogenetic study of the complete coding region polymerase a (pa) gene of h9n2 subt...
The objective of this study was to consider effect of three different time of starting Ovsynch after Artificial Insemination, on synchrony parameters, pregnancy loss and fertility in Holstein cows. Multiparous cows (> 30 Kg/d, n = 450) randomly assigned to one of three groups. Groups according to time of starting Ovysnch were as follows: 1- Starting Ovsynch on day 25 after AI, 2- Starting Ovsyn...
this study was conducted in 2008 at the research field of university of tehran, karaj. the experiment was designed as a randomized complete block design with three replications. treatments were: atrazine 1kg/ha, alachlor 4kg/ha, atrazine+alachlor (1+4) kg/ha, nicosulfuron 80 g ai/ha, furamsulfuron 45g ai/ha, rimsulfuron 25g ai/ha, nicosulfuron+furamsulfuron (80+45) g ai/ha, nicosulfuron+rimsulf...
in order to study the effect of planting pattern and herbicide application on corn (zea mays l.) grain yield and weeds control, an experiment was carried out in 2007 at varamin research station of plant protection research institute. the experimental design was a randomized complete block in a split plot arrangement with 4 replications. experimental factors consisted of planting patterns at 4 l...
Sixteen avian influenza (AI) H9N2 viruses were isolated from disease outbreaks in different parts of Iranduring (1998–2001). These AI isolates were used for pathogenicity, haemagglutinin (HA) gene variation andphylogenetic analysis. Results in both pathogenicity tests and HA gene cleavage site sequence detectionrepresented a non-highly pathogenic feature for all Iranian AI isolates studied. The...
چکیدهمقدمه: اختلال در میزان لیپیدها و آپولیپوپروتئینها از عوامل خطرساز بیماری قلبی ـ عروقی محسوب میشود و خوشهی ژنی APOAI-CIII-AVIنقش مهمی در تنظیم سوخت و ساز و میزان لیپیدها دارد. هدف پژوهش حاضر، بررسی ارتباط 5 پلیمورفیسم در ناحیهی ژنی Apo11q با میزان لیپیدها در سرم میباشد. مواد و روشها: مطالعهی مقطعی حاضر روی 823 نفر (340 مرد و 483 زن) از جمعیت مورد مطالعهی قند و لیپید تهران (TLGS)...
background and aims: hemagglutinin (ha) protein of avian influenza (ai) plays an essential role in the virus pathogenicity. ai h9n2 subtype causes significant economic loss in broiler and layer in poultry farms in iran. ai viruses have a great involvement in evolutionary changes at nucleotide and amino acid levels and vaccines could induce faster rates of such changes. up-dated understanding of...
The term amelogenesis imperfecta (AI) describes a diverse group of hereditary conditions primarily affecting the quality and/or quantity of dental enamel which are usually not associated with generalized findings. It affects all teeth in both the primary and permanent dentitions. The estimated frequency of AI is one in 14000. Disruptions occurring during histodifferentiation, apposition, and mi...
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