نتایج جستجو برای: population concentration

تعداد نتایج: 1056481  

2017

Substance abuse is a global public health concern. It is associated with various health care problems, increase in crime rates, and decrease in productivity. Despite utilizing various approaches for management of substance abuse worldwide, the substance abuse and relapse rates are still relatively high. This paper introduces a new approach for management of substance abuse disorder utilizing mi...

Journal: :Environmental Health Perspectives 1998
A H Stern J A Fagliano J E Savrin N C Freeman P J Lioy

Several previous studies of exposure to chromium waste in New Jersey have shown that Cr levels are elevated in household dust in homes adjacent to waste sites and that Cr levels in the urine of residents near sites are also elevated compared to control populations. It has not been possible until now, however, to examine these external and internal measures of exposure together in a large popula...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم پایه 1391

a simple, rapid and low-cost scanner spectroscopy method for the glucose determination by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore has been described. the detection was based on the combination of the glucose enzymatic reaction and the quenching effect of h2o2 on the cdte quantum dots (qds) photoluminescence.in this study glucose was determined by utilizing glucose...

2014
J. David Creswell Emily K. Lindsay

Initial well-controlled studies have suggested that mindfulness training interventions can improve a broad range of mental and physical health outcomes (e.g., HIV pathogenesis, depression relapse, inflammation, drug abuse), yet the underlying pathways linking mindfulness and health are poorly understood. In this article, we offer a mindfulness stress buffering account to explain these health ou...

2016
Billie Lever Taylor

Objective: Mindfulness-based cognitive therapy (MBCT) involves approximately twenty hours of therapist contact time and is not universally available. MBCT self-help (MBCT-SH) may widen access but little is known about its effectiveness. This paper presents a randomised controlled trial (RCT) of MBCT-SH for students. Method: Eighty students were randomly assigned to an eight-week MBCT-SH conditi...

2013
Rachel Martin Ivanka Prichard Amanda D Hutchinson Carlene Wilson

The present study examined yoga participation and cardiovascular exercise in relation to dietary intake and disordered eating symptomatology and the role of mindfulness. Participants were 159 female exercisers who completed a questionnaire incorporating measures of exercise behaviour, body awareness, trait mindfulness, mindful eating, and dietary intake and disordered eating symptomatology. Par...

2016
J. David Creswell Jon Kabat-Zinn

Mindfulness interventions aim to foster greater attention and awareness on present moment experience, and there has been a surge in randomized controlled trials (RCTs) of mindfulness interventions in recent years. This review takes stock of the growing mindfulness intervention RCT evidence to-date by reviewing and discussing: 1) mindfulness intervention effects on health, cognitive, affective, ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1390

the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه دریانوردی و علوم دریایی چابهار - دانشکده علوم دریایی 1393

با افزایش تعداد سویه های باکتریایی مقاوم به آنتی بیوتیک های مختلف و قیمت بالای برخی آنتی بیوتیک ها نیاز به داروهای گیاهی موثر، در دسترس و ارزان احساس می شود. این مطالعه به منظور مقایسه اثرضدباکتریایی عصاره های قطبی و غیر قطبی دوره های مختلف رویشی گیاه اسپند (peganum harmala) بر روی باکتری های آئروموناس هیدروفیلا (aeromonas hydrophila)، فتوباکتریوم دامسلا (photobacterium damsela) و لاکتوکوکوس گا...

Journal: :Current protocols in cytometry 2010
Ruud Hulspas

Nonspecific antibody binding is best eliminated by optimizing the amount and concentration of the antibody. An antibody titration assay should be applied to determine the antibody amount and concentration resulting in the highest signal of the positive population and the lowest signal of the negative population. While conventional antibody titration protocols focus on the concentration of the a...

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