986 resultados para withdrawal reflex


Relevância:

20.00% 20.00%

Publicador:

Resumo:

ISAF’s withdrawal from Afghanistan in 2014 will directly impact the wider region. Not only is there a risk of instability spilling over to Central Asia, but the drawdown will also accelerate the ongoing shift in the balance of power in Central Asia towards China. Should a spillover occur, the burden will mainly fall on Russia and China. Russia will, however, only continue playing the dominant role in the security of the former Soviet Central Asia (FSCA) until China takes on responsibility for the security of its direct sphere of influence or “dingwei”. Russia’s Near Abroad, however, overlaps both with the EU’s Eastern Neighbourhood in Europe and China’s dingwei in Central Asia and the Far East. It is, therefore, necessary to approach Russian reactions to these encroachments on its historical spheres of influence in a single context, taking into account the interrelationship between these three.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Background: Nicotine use has been reported to ameliorate symptoms of Attention-Deficit/Hyperactivity Disorder (ADHD). Furthermore, adults with ADHD have a relatively high prevalence of cigarette smoking and greater difficulty abstaining from smoking. Overall, though, there is scant literature investigating the beliefs, perceptions and experiences of smokers with ADHD regarding smoking cessation and withdrawal. Methods: Our participants (n = 20) fulfilling criteria for ADHD and a past or current dependence from nicotine were recruited from the in- and outpatient clinic of the Zurich University Psychiatric Hospital and the Psychiatric Services Aargau (Switzerland). We conducted in-depth interviews to explore their motivations to quit, past experiences with and expectations about quitting using a purposeful sampling plan. The sample was selected to provide diversity in relation to level of nicotine dependence, participation in a smoking-cessation program, gender, age, martial status and social class. Mayring’s qualitative content analysis approach was used to evaluate findings. Results: Adult smokers with ADHD had made several attempts to quit, experienced intense withdrawal symptoms, and relapsed early and often. They also often perceived a worsening of ADHD symptoms with nicotine abstinence. We identified three motives to quit smoking: 1) health concerns, 2) the feeling of being addicted, and 3) social factors. Most participants favored a smoking cessation program specifically designed for individuals with ADHD because they thought ADHD complicated their nicotine withdrawal and that an ADHD-specific smoking cessation program should address specific symptoms of this disorder. Conclusions: Since treatment initiation and adherence associate closely with perception, we hope these findings will result in better cessation interventions for the vulnerable subgroup of smokers with ADHD. Keywords: ADHD, Nicotine, Withdrawal, Subjective, Qualitative, Narrative

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Forming Appendix I. to the Volume of Greenwich observations for the year 1854.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Prepared for the Employment and Training Administration, U.S. Department of Labor, under Research and Development Grant No. 91-48-78-39.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

"References": p. [22]

Relevância:

20.00% 20.00%

Publicador:

Resumo:

"A chronological list of important contributions to the physiology of muscle": p. 53-55.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The effects of attention to a lead stimulus and of its sensory properties on modulation of the acoustic blink reflex were investigated. Participants performed a reaction time task cued by an acoustic or a visual lead stimulus. In Experiment 1, half the participants were presented with sustained lead stimuli. For the remainder, the lead stimulus was discrete and consisted of two brief presentations that marked the onset and offset of a stimulus-free interval. In Experiment 2, sustained lead stimuli were presented at a low or high intensity. The attentional demands of the task enhanced blink latency and magnitude modulation during acoustic and visual lead stimuli, with blink modulation being largest at a late point during the lead stimulus. Independent of the attentional effects, blink latency and magnitude modulation were larger during sustained than during discrete acoustic lead stimuli, whereas there was no difference for visual lead stimuli. Increases in the intensity of the lead stimulus enhanced blink modulation regardless of lead stimulus modality. Attention to a lead stimulus and the properties of the lead stimulus appear to have independent effects on blink reflex modulation.