نتایج جستجو برای: can spread across class boundaries cockerham et al 1988

تعداد نتایج: 3911239  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده علوم کشاورزی 1392

کنه های خانواده استیگمئیده استان های همدان و مرکزی طی سالهای 1390-1392 مورد مطالعه قرار گرفت.در این بررسی جمعأ 18 گونه متعلق به 7 جنس جمع آوری و شناسایی شدکه یک جنس اولین گزارش برای ایران بودکه با(?) مشخص شد. ??گونه برای اولین بار در دنیا شناسایی و توصیف گردیدکه با علامت(**) مشخص شده اند. لیست گونه ها در ذیل ذکر شده است. genus stigmaeus koch, 1836: stigmaeuscariae khanjani et al., 2012; stigma...

2004
Grace E. Wiebe

1. INTRODUCTION. * In some traditional models of the syllable, it is assumed that the syllable is composed of onset, nucleus and coda, where the onset consists of prevocalic consonants, the coda of any postvocalic consonants and the nucleus of a vowel, diphthong or syllabic consonant (see Van der Hulst & Smith 1982). Derwing et al. (1988) questioned the sharp boundaries between the subsyllabic ...

2012
D. W. Burbank R. A. Beck

The use of gravels as syntectonic indicators of thrusting has recently been questioned by foreland-basin models that assign gravels to a post-thrusting interval of progradation, except in very proximal areas. On the basis of precise temporal control provided by magnetostratigraphically dated sections, the history of gravel progradation after a major thrusting and uplift event in the northwester...

Journal: :The Plant cell 1990
K Skriver J Mundy

Abscisic acid (ABA) was discovered in the 1950s to be a phytohormone affecting leaf abscision and bud dormancy. It was soon characterized as a sesquiterpene derived from mevalonate although certain steps of its biosynthesis in plants are still unknown (Li and Walton, 1987; Zeevaart and Creelman, 1988). Continuing work on ABA has shown that it mediates various developmental and physiological pro...

2010
Mark A. Finney

Fire as a landscape process is of broad interest to ecologists and land managers. Fires alter forest age-distributions (Heinselman, 1973; Van Wagner, 1978), are sensitive to climate (Balling et al., 1992, Swetnam and Bettancourt, 1990; Swetnam, 1993; Timoney and Wein, 1991), can be manipulated by fire suppression (Baker, 1992; Barrett, 1994), and affect directions for land management policy (Hu...

2015
Paula Pappalardo James M. Pringle John P. Wares James E. Byers

range boundaries in these systems (Gaylord and Gaines 2000, Kinlan and Gaines 2003). In the case of marine biogeographic boundaries, the effects of temperature and currents are hard to separate because changes in the ocean circulation are often associated with abrupt changes in temperature. New insights to separate the effects of correlated environmental factors on species distributions can be ...

1999

Korean Combinatory Categorial Grammar (KCCG) is an extended combinatory categorial grammar formalism that can capture the syntax and interpretation of the \relative free" word order, long distance scrambling and other characteristics of Korean. The KCCG formalism can uniformly handle word order variation among arguments and adjuncts within a clause as well as in complex clauses and across claus...

Journal: :Visual neuroscience 1998
A G Leventhal Y Wang M T Schmolesky Y Zhou

The responses of neurons in areas V1 (17) and V2 (18) of anesthetized and paralyzed rhesus monkeys and cats were recorded while presenting a set of computer-generated visual stimuli that varied in pattern, texture, luminance, and contrast. We find that a class of extrastriate cortical cells in cats and monkeys can signal the presence of boundaries regardless of the cue or cues that define the b...

2005
E. L. Barnard J. R. Meeker

Pines (Pinus spp.) in Florida are subject to infection by a variety of root-infecting and root disease fungi (Barnard et al 1985; Barnard et al 1991). Among the least known and perhaps most poorly understood of these root-inhabiting fungi are members of the ascomycete genus Ophiostoma, with anamorphs belonging to the more commonly observed formgenus Leptographium. This highly complex and intern...

Journal: :Memorias do Instituto Oswaldo Cruz 1999
M S Carmo J E Araya M I Ramirez S Boscardin M I Cano R P Baida R C Ruiz M R Santos M A Chiurillo J L Ramirez N Yoshida J F Silveira

The infective forms of Trypanosoma cruzi are the trypomastigote stages found in the bloodstream of mammalian hosts or the metacyclic trypomastigotes present in the digestive tract of the insect. Metacyclic trypomastigotes express two stage-specific glycoproteins (gp90 and gp82) that have no counterpart in blood trypomastigotes (Yoshida 1983, Teixeira & Yoshida 1986). The gp90 and gp82 are invol...

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