نتایج جستجو برای: based phylogram

تعداد نتایج: 2934723  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

in this thesis protic and aprotic ammonium-based ionic liquids were synthesized and their surface tensions were measured in the range of 298-373k. the protics are alkyl ammonium-based ils with the carboxylate (formate, acetate, propionate) anion and aprotics are quaternary ammonium-based ils with bis(trifluoromethylsulfonyl)imide anion. capillary rise method was used for surface tension measure...

2013
R. SHALINI

The objective of the present investigation was to determine the level of WSSV transmission from the infected tiger prawn Penaeus monodon to SPF Litopenaeus vannamei in laboratory captivity condition, in connection with to PCR detection and viral genome sequence. The nested PCR product band was ranged between 296 to 910 bp and was found during entire period from the experimental studies of SPF L...

Journal: :Journal of clinical microbiology 1999
C Hennequin E Abachin F Symoens V Lavarde G Reboux N Nolard P Berche

Fusarium spp. have emerged as major opportunistic fungal agents. Since new antifungal agents exhibit variable activity against Fusarium isolates depending on the species, rapid identification at the species level is required. Conventional culture methods are difficult, fastidious, and sometimes inconclusive. In this work, we sequenced a 440-bp fragment encoding the 28S rRNA from 33 Fusarium iso...

Journal: :Memorias do Instituto Oswaldo Cruz 2007
Silvia Y Bando Luiz R Trabulsi Carlos A Moreira-Filho

The genetic relationship among the Escherichia coli pathotypes was investigated. We used random amplified polymorphic DNA (RAPD) data for constructing a dendrogram of 73 strains of diarrheagenic E. coli. A phylogenetic tree encompassing 15 serotypes from different pathotypes was constructed using multilocus sequence typing data. Phylogram clusters were used for validating RAPD data on the clona...

2011
Erich SEEMÜLLER Maren KAMPMANN Emese KISS Bernd SCHNEIDER

Previous work has shown that multiple infections of apple trees by distinctly different strains of ‘Candidatus Phytoplasma mali’ are widespread. In the current study, pathological data of infected trees with single or multiple phytoplasma were analyzed and compared with molecular data based on a hflB gene of the infecting phytoplasmas. Single-strand conformation polymorphism and sequence analys...

2007
Uddalak Bharadwaj Faisal Khan Sanjeev Srivastava Himanshu Goel Suraksha Agrawal Sanjay Gandhi

Human Leukocyte Antigen (HLA) loci widely known for their role in generation of immune responses are often considered to be effective in reconstructing human phylogenies due to high degree of polymorphism and rarity of recombination observed at HLA loci. In the present study, we have made an attempt to substantiate the phylogenetic potential of HLA class II loci by analyzing DRB1, DQA1 and DQB1...

2013
Daisuke NAGANO Thillaiampalam SIVAKUMAR Alane Caine Costa DE DE MACEDO Tawin INPANKAEW Andy ALHASSAN Ikuo IGARASHI Naoaki YOKOYAMA

In the present study, we screened blood DNA samples obtained from cattle bred in Brazil (n=164) and Ghana (n=80) for Babesia bovis using a diagnostic PCR assay and found prevalences of 14.6% and 46.3%, respectively. Subsequently, the genetic diversity of B. bovis in Thailand, Brazil and Ghana was analyzed, based on the DNA sequence of merozoite surface antigen-1 (MSA-1). In Thailand, MSA-1 sequ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک 1388

the world wide web becomes very popular recently and plays an influential role in english learning. by burgeoning role of source-based writing as partial fulfillment of tefl courses and vast use of the internet, lack of empirical studies to explore these areas is obvious. this study aimed to explore the effect of the amount of familiarity with the web (internet literacy) on junior english stude...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1380

در این پایان نامه خصوصیات کلی شبیه سازی cycle-based معرفی شده و نحوه انجام شبیه سازی cycle-based در سطح گیت و سطح انتقال ثبات مورد بررسی موشکافانه قرار گرفته است . در این پایان نامه همچنین محدودیتهای شبیه سازی cycle-based معرفی شده و راه حلهایی برای این مشکلات ارائه شده است . به موازات این پایان نامه و برای اثبات صحت نظریه های مطرح شده و راه حلهای ارائه شده در آن، یک شبیه ساز cycle-based برای ز...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده ادبیات و علوم انسانی 1392

abstract the present study was conducted in order to investigate the impact of an integrated model of form-focused and task-based instruction on iranian efl learners vocabulary learning and retention.it also aimed to detect efl learners attitude towards the implementation of form-focused task-based vocabulary instruction in the classroom. in order to address the purposes of this study, a sampl...

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