نتایج جستجو برای: sect incani

تعداد نتایج: 2871  

2017
K. Liimatainen X. Carteret B. Dima I. Kytövuori A. Bidaud P. Reumaux T. Niskanen J.F. Ammirati J.-M. Bellanger

Cortinarius is the largest genus of ectomycorrhizal fungi worldwide. Recent molecular studies have shown high levels of morphological homoplasy within the genus. Importantly, DNA phylogenies can reveal characteristics that have been either over- or underemphasized in taxonomic studies. Here we sequenced and phylogenetically analysed a large set of pan-European and North American collections tax...

2008
Jeffery M. Saarela Paul M. Peterson Ryan M. Keane Jacques Cayouette Sean W. Graham JEFFERY M. SAARELA PAUL M. PETERSON RYAN M. KEANE JACQUES CAYOUETTE SEAN W. GRAHAM

We conducted a phylogenetic analysis to characterize relationships among Bromus and test the monophyly of five of the seven morphologically distinct groups within Bromus (Poaceae: Pooideae) that have been treated as sections, subgenera, or genera. We sequenced the chloroplast trnL (UAA) intron, the 3!-end of the chloroplast ndhF gene, and the internal transcribed spacers (ITS) of the nuclear ri...

2016
Olga V. Yurtseva Oxana I. Kuznetsova Maria E. Mavrodieva Evgeny V. Mavrodiev

BACKGROUND The recently proposed recircumscription of the genus Atraphaxis (incl. Atraphaxis section Ovczinnikovia O.V. Yurtseva ex. S. Tavakkoli and Polygonum sect. Spinescentia Boissier (=A. sect. Polygonoides S. Tavakkoli, Kaz. Osaloo & Mozaff.) makes this genus fairly heterogeneous and therefore almost undefinable based on morphology. A critical comprehensive reappraisal of the group is nec...

Journal: :رستنیها 0
فرحناز جوانمردی دانشجوی دکتری بخش علوم گیاهی، دانشکده علوم پایه، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات، تهران ([email protected]) شاهرخ کاظم پور اوصالو دانشیار بخش علوم گیاهی، دانشکده علوم زیستی، دانشگاه تربیت مدرس، صندوق پستی 175-14115، تهران علی اصغر معصومی استاد پژوهش بخش گیاه شناسی، موسسه تحقیقات جنگل ها و مراتع، صندوق پستی116- 13185، تهران طاهر نژاد ستاری دانشیار بخش علوم گیاهی، دانشکده علوم پایه، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات، تهران

a phylogenetic analysis of astragalus sect. alopecuroidei based on nrdna its as well as morphological character data is presented. a total of fifty informative morphological characters were analyzed to reconstruct phylogenetic relationships for 23 taxa of the sect. alopecuroidei and two species of sect. laxiflori plus a. sieversianus and a. caryolobus as outgroups. the present analysis revealed...

ژورنال: :مجله گیاهشناسی ایران 2007
زهرا توکلی مصطفی اسدی

در بررسی تاکسونومیکی بر روی جنس hieraciumدر ایران که بر اساس مطالعات نمونه های هرباریومی و جمع آوری شده صورت گرفت، h. ×sintenisiiو h. ×pannoniciforme  از بخش sect. praealtina، h. pollichia از بخش sect. vulgata و h. echioides lumn. subsp. echioides از بخش sect. echinina  برای اولین بار از ایران گزارش می شوند. گونه های h.×procerigenum  با  h.×auriculoides  و h. ×woronowianum با h. ×maschukenseمتر...

2017
Bo Mussmann Søren Overgaard Trine Torfing Morten Bøgehøj Oke Gerke Poul Erik Andersen

BACKGROUND Periprosthetic bone loss is considered to be a potentially contributing factor in aseptic loosening of acetabular hip components, but no studies have shown this association. The lack of association might be caused by insufficient image quality because of metal artifacts and challenges in measuring bone density (BMD) in complex anatomic structures which might be overcome using dual-en...

2017
Ana Vaniqui Lotte E. J. R. Schyns Isabel P. Almeida Brent van der Heyden Stefan J. van Hoof Frank Verhaegen

BACKGROUND To investigate the feasibility of using dual-energy CT (DECT) for tissue segmentation and kilovolt (kV) dose calculations in pre-clinical studies and assess potential dose calculation accuracy gain. METHODS Two phantoms and an ex-vivo mouse were scanned in a small animal irradiator with two distinct energies. Tissue segmentation was performed with the single-energy CT (SECT) and DE...

Journal: :Synthese 2012
Nathan Ballantyne

Recent work on the nature of luck widely endorses the thesis that an event is good or bad luck for an individual only if it is significant for that individual. In this paper, I explore this thesis, showing that it raises questions about interests, well-being, and the philosophical uses of luck. In Sect. 1, I examine several accounts of significance, due to Pritchard (2005), Coffman (2007), and ...

2016
C.M. Visagie J. Houbraken J. Dijksterhuis K.A. Seifert K. Jacobs R.A. Samson

The genus Torulomyces was characterised by species that typically have conidiophores consisting of solitary phialides that produce long chains of conidia connected by disjunctors. Based on the phylogenetic position of P. lagena (generic ex-neotype), the genus and its seven species were transferred to Penicillium and classified in sect. Torulomyces along with P. cryptum and P. lassenii. The aim ...

Journal: :Design Autom. for Emb. Sys. 2011
Jean-Jacques Lecler Gilles Baillieu

This article presents an overview of the design process of an interconnection network, using the technology proposed by Arteris. Section 2 summarizes the various features a NoC is required to implement to be integrated in modern SoCs. Section 3 describes the proposed top-down approach, based on the progressive refinement of the NoC description, from its functional specification (Sect. 4) to its...

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