نتایج جستجو برای: tufa
تعداد نتایج: 222 فیلتر نتایج به سال:
BACKGROUND Small colony variants (SCVs) are slow-growing bacteria, which often show increased resistance to antibiotics and cause latent or recurrent infections. It is therefore important to understand the mechanisms at the basis of this phenotypic switch. METHODOLOGY/PRINCIPAL FINDINGS One SCV (termed PAO-SCV) was isolated, showing high resistance to gentamicin and to the cephalosporine cefo...
â â â parsian alluvial fan system is a part of asyab-kharabeh fluvial system that response it to quaternary climate changes is the main goal of this study. for this aim, climatic proxies and traces in alluvial fan structure were investigated base d o n four categories: aggradation and degradation phases, debris flows, size changes in deposited materials and formation of alluvial fan tufas. pri...
Ulva -like green algae are notoriously difficult to distinguish due their morphological variability and/or similarity. DNA barcoding approaches therefore currently essential for reliable identification. However, such often fail when rare or inconspicuous species be detected in large mixed populations of species, example, at early stages following the introduction into new habitats. We developed...
A comparative study was carried out to evaluate the fatty acid profile and physicochemical qualities of oil extracted from unfermented fermented seeds Annona squamosa. A. squamosa powdered, were using soxhlet extraction. The composition identified GC-MS. physiochemical properties determined standard analytical methods. Unfermented had a total saturated (TSFA) 37.41%, which palmitic most predomi...
Green tides are a serious global ecological disaster; the largest occur in Southern Yellow Sea (SYS). Early-stage green SYS composed of four species (Ulva prolifera, Ulva flexuosa, linza, and compressa). We found that U. aragoensis is constituent based on molecular data. Furthermore, this study re-evaluated proportion it was more prevalent micro-propagules cultured from surface seawater during ...
Çalışmaya konu olan tufa yüzleği, Türkiye’nin ikinci büyüklükteki neotektonik yapısı sol yanal doğrultu atımlı Doğu Anadolu Fay Sistemi’nin önemli zonlarından biri Elazığ Zonu üstünde, şehir merkezinin yaklaşık 20 km güneybatısında bulunur.
 Tufaların yanal-düşey ilişkili olduğu Kuvaterner yaşlı Palu Formasyonu, karasal kökenli kırıntılı çökellerle karakterize edilir. Tufa oluşumunda kayna...
مایکوپلاسما آگالاکتیه یکی از عوامل اصلی ایجاد آگالاکسی در نشخوارکنندگان کوچک می‌باشد. ایران یکی از کانون‌های اصلی اپیدمی‌های سالانه این بیماری در جهان شناخته می‌شود. واکسن کشته آگالاکسی با استفاده از سه سویه بومی شیراز، طالقان و لرستان در موسسه رازی تولید می‌شود. به منظور شناسایی ویژگی‌های ژنتیکی این سویه‌ها سیستم تایپینگMulti Locus Sequence typing (MLST)i با تمرکز بر روی 5 ژن dnaA ،gltX ،gyrB ...
The travertine deposit springs are located on the southeast of the Damavand Volcano, 85 km northeast of Tehran Province. The deposits of these springs mainly outcropped with cascade, hill, conical, layered, calcareous Tufa and Fissure-Ridges morphologies. Travertine studies have usually been conducted based on field observations, geochemistry and hydrology. The tectonic activity of the region, ...
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