نتایج جستجو برای: double blind

تعداد نتایج: 276773  

Journal: :The British journal of ophthalmology 1986
M J Lavin V Andrews

A randomised, double blind, single dose study of topical haloperidol, a dopamine receptor blocking drug, was performed on 20 healthy volunteers. After its administration a modest reduction in intraocular pressure was recorded over the six-hour study period, but the difference was not significant at the p less than 0.05 level. Although dopamine blocking agents are effective in reducing intraocul...

2014
Francine C van Erp André C Knulst Yolanda Meijer Carmelo Gabriele Cornelis K van der Ent

BACKGROUND Food challenge tests are the gold standard in diagnosing food allergy. Guidelines provide scoring systems to classify symptoms during challenge and typically recommend that challenges are considered positive when objective symptoms occur. However, currently no standard criteria for the definition of a positive challenge outcome exists and interpretation of food challenges mainly depe...

Journal: :Thorax 2005
S Holt C Timu-Parata S Ryder-Lewis M Weatherall R Beasley

BACKGROUND Smoking rates are high in indigenous populations and contribute to their poor health. In New Zealand the indigenous Maori population has a high rate of smoking, with around 50% of adults being smokers compared with 20% of the adult European population. A study was undertaken to determine whether bupropion is effective in the treatment of smoking cessation in the indigenous Maori popu...

2008

S houlder pain is a very common musculoskeletal complaint, and individuals with shoulder pain comprise a significant percentage of patients seeking medical attention. Lifetime prevalence of shoulder pain has been reported to range from 7% to 36% of the population.11,13 Rotator cuff pathology and subacromial impingement are among the most common diagnoses made in the shoulder region.11,19 The va...

2013
Viranjay M. Srivastava

In this paper, we have analyzed the image acquisition of the Cylindrical Surrounding Double-Gate (CSDG) MOSFETs for the purpose of RF switch for the advanced wireless telecommunication systems. The proposed model will emphasize on the basics structure of the single image sensor for two dimensional images of a three dimension devices, so that we can obtained a satisfied or say smooth device stru...

2012
Sanghun Lee Nara Lim Sun Mi Choi Sungchul Kim

Introduction. In 2008, Kim's sham needle was developed to improve the quality of double-blinded studies. The aim of this study is to validate Kim's sham needle by measuring facial temperature. Methods. We designed "N-of-1" trials involving 7 smokers. One session was composed of 2 stimulations separated by a 2 h washout period. Six sessions were applied daily for all subjects. Infrared thermal i...

2015
Grace Petkovic James E G Charlesworth John Kelley Franklin Miller Nia Roberts Jeremy Howick

INTRODUCTION Placebos have long provided a robust control for evaluating active pharmacological preparations, but frequently demonstrate a variable therapeutic effect when delivered in double-blinded placebo-controlled trials. Delivery of placebos as treatment alone has been considered unethical, as it has been thought that deception is essential for their effect. However, recent evidence sugge...

Journal: :Journal of medical ethics 2002
P Wainwright

A frequent feature of pharmaceutical research is the open label extension study, in which patients participating in double blind placebo controlled trials of new medications are invited, on completion of the initial trial, to take the study drug for some further period. Patients are openly given the active substance at this stage, regardless of their assignment in the initial trial. Investigato...

Journal: :Human psychopharmacology 2010
Inge Zeeuws Natacha Deroost Eric Soetens

OBJECTIVE The improvement of long-term retention of verbal memory after an acute administration of D-amphetamine in recall and recognition tasks has been ascribed to an influence of the drug on memory consolidation. Because recent research has demonstrated that intermediate testing is of overriding importance for retention, we investigated whether D-amphetamine modulates the repeated testing ef...

2011
Marinus H. van IJzendoorn Renske Huffmeijer Lenneke R. A. Alink Marian J. Bakermans-Kranenburg Mattie Tops

Oxytocin has been implicated in a variety of prosocial processes but most of this work has used laboratory tasks (such as the ultimatum game or the dictator game) to evaluate oxytocin's prosocial effects. In a double blind randomized trial we examined the influence of intranasal administration of oxytocin on real, high-cost donating money to a charity without any expectation for reciprocation. ...

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