نتایج جستجو برای: cold acclimatization

تعداد نتایج: 155419  

2015
Qing-lin Wang Shan-shan Yu Yun-wei Dong Hans G. Dam

To evaluate the thermal resistance of marine invertebrates to elevated temperatures under scenarios of future climate change, it is crucial to understand parental effect of long acclimatization on thermal tolerance of offspring. To test whether there is parental effect of long acclimatization, adult sea cucumbers (Apostichopus japonicus) from the same broodstock were transplanted southward and ...

2016
Bao Liu He Huang Shou-Xian Wang Gang Wu Gang Xu Bing-Da Sun Er-Long Zhang Yu-Qi Gao

Background: Altitude acclimatization is a physiological process that restores oxygen delivery to the tissues and promotes oxygen use under high altitude hypoxia. High altitude sickness occurs in individuals without acclimatization. Unraveling the molecular underpinnings of altitude acclimatization could help understand the beneficial body responses to high altitude hypoxia as well as the altere...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زیست شناسی 1388

126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...

2015
SEBASTIEN RACINAIS JULIEN D. PÉRIARD ANDERS KARLSEN LARS NYBO

PURPOSE This study aimed to determine the effects of heat acclimatization on performance and pacing during outdoor cycling time trials (TT, 43.4 km) in the heat. METHODS Nine cyclists performed three TT in hot ambient conditions (TTH, approximately 37°C) on the first (TTH-1), sixth (TTH-2), and 14th (TTH-3) days of training in the heat. Data were compared with the average of two TT in cool co...

2015
Jui-Lin Fan Andrew W. Subudhi James Duffin Andrew T. Lovering Robert C. Roach Bengt Kayser

Previous studies reported enhanced cerebrovascular CO2 reactivity upon ascent to high altitude using linear models. However, there is evidence that this response may be sigmoidal in nature. Moreover, it was speculated that these changes at high altitude are mediated by alterations in acid-base buffering. Accordingly, we reanalyzed previously published data to assess middle cerebral blood flow v...

2013
Aleksander Westphal Muniz Enilson Luiz de Sá Gilberto Luíz Dalagnol João Américo Filho

In vitro rooting and the acclimatization of micropropagated rootstocks of apple trees is essential for plant development in the field. The aim of this work was to assess the use of rhizobia of Adesmia latifolia to promote rooting and acclimatization in micropropagated Marubakaido apple rootstock. An experiment involving in vitro rooting and acclimatization was performed with four strains of rhi...

Journal: :High altitude medicine & biology 2002
Benjamin D Levine

Intermittent hypoxic training (IHT) refers to the discontinuous use of normobaric or hypobaric hypoxia, in an attempt to reproduce some of the key features of altitude acclimatization, with the ultimate goal to improve sea-level athletic performance. In general, IHT can be divided into two different strategies: (1) providing hypoxia at rest with the primary goal being to stimulate altitude accl...

Journal: :Pro-fono : revista de atualizacao cientifica 2010
Sinéia Neujahr dos Santos Tiago Petry Maristela Julio Costa

BACKGROUND After the adaptation of hearing aids, an improvement in speech understanding is expected to occur, called acclimatization. AIM To determine the effect of acclimatization in sentences recognition threshold, for the conditions of silence (SRTQ) and noise (SRTN), in new users of hearing aids, evaluated prior to and after acclimatization, without the use of the hearing aids. METHOD P...

Journal: :Journal of speech, language, and hearing research : JSLHR 2012
Danielle Glista Susan Scollie Jacob Sulkers

PURPOSE In this study, the authors evaluated the effect of frequency compression hearing aids on speech perception ability and the time course and magnitude of acclimatization-related changes. METHOD Participants included children ages 11-18 years. Speech perception ability was evaluated over well-controlled baseline, treatment, and withdrawal study phases. Study-worn hearing aids were indivi...

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