نتایج جستجو برای: functional impacts

تعداد نتایج: 717400  

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2017
J R Freitas W Mantovani

Functional diversity is increasingly pointed as a useful approach to reach Biological Conservation goals. Here, we provide an overview of the functional diversity approach status in the Biological Conservation field. We sought for peer-reviewed papers published over a period of twenty years (from 1994 to 2014). First we used the general topic "functional diversity" and then refined our search u...

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

موضوع: پوکی استخوان به عنوان شایعترین بیماری متابولیک استخوان،یکی از عوامل مهم ایجاد کایفوز پشتی ستون فقرات و افزایش احتمال خطر سقوط است. استفاده از ارتزها یکی از روش های درمانی است که در خصوص ارزشمندی آنها برای بهبود تعادل اتفاق نظر وجود ندارد. هدف از انجام این مطالعه بررسی تاثیر ارتز وزنه دار کایفوز بر میزان خطر سقوط در زنان مبتلا به پوکی استخوان اولیه بود. روش بررسی: طی یک مطالعه کارآزمائ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه دانشهای بنیادی (مرکز تحقیقات فیزیک نظری و - پژوهشکده علوم نانو 1392

among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...

Journal: :Neuron 2016
Ankit N. Khambhati Danielle S. Bassett

In this issue of Neuron, Grayson et al. (2016) report how inhibition of amygdala impacts amygdalocortical and corticocortical functional connectivity. Their study predicts changes in functional brain topology, induced by pharmacologic modulation of neuroanatomical circuits using designer receptors exclusively activated by designer drugs (DREADDs), through virtual lesioning of amygdala in struct...

2012
Gustavo M. Martins Francisco Arenas Ana I. Neto Stuart R. Jenkins

The potential population and community level impacts of fishing have received considerable attention, but little is known about how fishing influences communities' functional diversity at regional scales. We examined how estimates of functional diversity differed among 25 regions of variable richness and investigated the functional consequences of removing species targeted by commercial fisheri...

2001
J. EMMETT DUFFY KENNETH S. MACDONALD JENNIFER M. RHODE JOHN D. PARKER

Concern over the accelerating loss of biodiversity has stimulated renewed interest in relationships among species richness, species composition, and the functional properties of ecosystems. Mechanistically, the degree of functional differentiation or complementarity among individual species determines the form of such relationships and is thus important to distinguishing among alternative hypot...

Journal: :Animals : an open access journal from MDPI 2016
Penny Fisher Samantha Brown Jane Arrow

Control methods used to manage unwanted impacts of the European rabbit in Australia and New Zealand include the use of toxic bait containing the anticoagulant pindone. Towards increased certainty in evaluating the animal welfare impacts of pindone poisoning in rabbits, we recorded behavioral and post-mortem data from rabbits which ingested lethal quantities of pindone bait in a laboratory trial...

Journal: :American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics 2007
Kevin B Miller Susan P McGorray Randy Womack Juan Carlos Quintero Mark Perelmuter Jerome Gibson Teresa A Dolan Timothy T Wheeler

INTRODUCTION The aim of this study was to evaluate the differences in quality of life impacts between subjects treated with Invisalign aligners (Align Technology, Santa Clara, Calif) and those with fixed appliances during the first week of orthodontic treatment. METHODS A prospective, longitudinal cohort study involving 60 adult orthodontic patients (33 with Invisalign aligners, 27 with fixed...

2017
Nicholas K Schooler Jenifer E Dugan David M Hubbard Dale Straughan

Evaluating impacts to biodiversity requires ecologically informed comparisons over sufficient time spans. The vulnerability of coastal ecosystems to anthropogenic and climate change-related impacts makes them potentially valuable indicators of biodiversity change. To evaluate multidecadal change in biodiversity, we compared results from intertidal surveys of 13 sandy beaches conducted in the 19...

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