نتایج جستجو برای: taking behaviors

تعداد نتایج: 300991  

Journal: :Physical review letters 2006
Mingzhong Wu Pavol Krivosik Boris A Kalinikos Carl E Patton

The random generation of coherent solitary waves from incoherent waves in a medium with an instantaneous nonlinearity has been observed. One excites a propagating incoherent spin wave packet in a magnetic film strip and observes the random appearance of solitary wave pulses. These pulses are as coherent as traditional solitary waves, but with random timing and a random peak amplitude.

Journal: :Journal of the Royal Army Medical Corps 1985
P B Hodson

A trial is reported in which RAMC staff working in a dressing station and wearing full NBC Individual Protective Equipment (IPE), attempted to take pulse and blood pressure (BP) readings on casualties similarly clad. These basic parameters however, were obtained from only half the casualties, the time taken to obtain them was prohibitive and the blood pressures were inaccurate. Certain remedies...

Journal: :The Journal of the Acoustical Society of America 1997
M A Averkiou M F Hamilton

Detailed measurements of finite-amplitude pulses radiated by plane and focused circular pistons in water are presented. Comparisons of time waveforms and frequency spectra, both on and off axis, are made with numerical calculations based on the nonlinear parabolic wave equation. Emphasis is on nonlinear distortion of amplitude- and frequency-modulated tone bursts. Use of short pulses enabled re...

Journal: :international journal of high risk behaviors and addiction 0
yasan kazemzadeh hiv/sti surveillance research center, who collaborating center for hiv surveillance, institute for futures studies in health, kerman university of medical sciences, kerman, ir iran mostafa shokoohi hiv/sti surveillance research center, who collaborating center for hiv surveillance, institute for futures studies in health, kerman university of medical sciences, kerman, ir iran mohammad reza baneshi modeling in health research center, institute for futures studies in health, kerman university of medical sciences, kerman, ir iran ali akbar haghdoost hiv/sti surveillance research center, who collaborating center for hiv surveillance, institute for futures studies in health, kerman university of medical sciences, kerman, ir iran; hiv/sti surveillance research center, who collaborating center for hiv surveillance, institute for futures studies in health, kerman university of medical sciences, kerman, ir iran. tel: +98-3412263725, fax: +98-3412263725

conclusions lower estimations in the nsu method might be due to the transmission barrier, which means that students were not fully aware of the high-risk behaviors of their close friends. nonetheless, it seems that these risky behaviors were more or less common among iranian college students. results the estimated prevalence using the cm and nsu were alcohol consumption (16.8% vs. 8.1%), opium ...

Journal: :Developmental Cognitive Neuroscience 2018
Dominique Maciejewski Nina Lauharatanahirun Toria Herd Jacob Lee Kirby Deater-Deckard Brooks King-Casas Jungmeen Kim-Spoon

Adolescence is a critical period for the initiation of risk-taking behaviors. We examined the longitudinal interplay between neural correlates of risk processing and cognitive control in predicting risk-taking behaviors via stress. The sample consisted of 167 adolescents (53% males) who were assessed twice (MAgeTime1 = 14.13, MAgeTime2 = 15.05). Neural risk processing was operationalized as blo...

2012
Lotta Sahlqvist

Objective: To examine the associations between child physical abuse executed by a parent or caretaker and self-rated health problems/risk-taking behaviors among teenagers. Further to evaluate concurrence of other types of abuse and how these alone and in addition to child physical abuse were associated with bad health status and risk-taking behaviors. Methods: A population-based survey was carr...

ژورنال: اعتیاد پژوهی 2013
برزگر, بهاره , دوست محمدی, فهیمه , شیری, اسماعیل , محمدی فرد, زهرا , نجاتی, وحید ,

Objective: Risky decision making is one of the most basic mechanisms of impulsive and addictive behaviors. The purpose of present study was the comparison of risky decision making in opium abuser and healthy matched individuals. Method: In present cross sectional study, 50 opium abusers compared to 50 healthy who were matched on age and gender. Balloon Analogue Risk Taking Task was used for eva...

2014
Ariel Telpaz Eldad Yechiam

Frontal asymmetry measured at rest using EEG is considered a stable marker of approach-avoidance behaviors and risk taking. We examined whether without salient cues of attention in the form of losses, predictability is reduced. Fifty-seven participants performed an experiential decision task in a gain-only, loss-only, and mixed (gains and losses) condition. Increased risk taking on the part of ...

Journal: :Psychological science 2016
Rui Mata Anika K Josef Ralph Hertwig

Past empirical work suggests that aging is associated with decreases in risk taking. But are such effects universal? Life-history theory suggests that the link between age and risk taking is a function of specific reproductive strategies that can be more or less risky depending on the ecology. We assessed variation in the age-risk curve using World Values Survey data from 77 countries (N = 147,...

2016
Rachel Shoham Edmund J. S. Sonuga-Barke Hamutal Aloni Ilan Yaniv Yehuda Pollak

Attention deficit and hyperactivity disorder (ADHD) is often assumed to be associated with increased engagement in risk-taking behaviors. The current study sought to understand the mental processes underlying this association using a theory-driven behavioral economics perspective. Psychological risk-return models suggest that risk and benefit are inherently subjective, and risk taking is best u...

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