Archive for the ‘researches 6’ Category
Thursday, July 3rd, 2008
The divided visual world paradigm: Eye tracking reveals hemispheric asymmetries in lexical ambiguity resolution.
Eye tracking was combined with the visual half-field procedure to examine hemispheric asymmetries in meaning selection and revision. In two experiments, gaze was monitored as participants searched a four-word array for a ...
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Thursday, July 3rd, 2008
N-Methyl-D-Aspartate Receptor and Calbindin-Containing Neurons in the Anterior Cingulate Cortex in Schizophrenia and Bipolar Disorder.
BACKGROUND: Glutamatergic modulation of gamma-aminobutyric acid (GABA) interneurons via the NR2A subunit of the N-methyl-D-aspartate (NMDA) receptor in the cerebral cortex contributes to the pathophysiology of schizophrenia and bipolar disorder. Previously, ...
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Thursday, July 3rd, 2008
Cognition-Enhancing Doses of Methylphenidate Preferentially Increase Prefrontal Cortex Neuronal Responsiveness.
BACKGROUND: Despite widespread use of low-dose psychostimulants for the treatment of attention-deficit/hyperactivity disorder (ADHD), the neural basis for the therapeutic actions of these drugs are not well understood. We recently demonstrated that low-dose methylphenidate (MPH) increases ...
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Thursday, July 3rd, 2008
Procedural performance in gastrointestinal endoscopy: An assessment and self-appraisal tool.
AIMS: Assessing endoscopic technical skills competency in a structured manner is a topical issue, in light of several workforce factors that may affect the training of future endoscopists. To date there has been little attempt to ...
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Thursday, July 3rd, 2008
Laparoscopic repair of inferior vena caval injury using a chitosan-based hemostatic dressing.
BACKGROUND: Vena caval injury is a rare but serious complication of laparoscopic surgery, and often requires conversion to an open procedure. The current study investigated whether a vena caval injury could be repaired with ...
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Thursday, July 3rd, 2008
The role of estrogen in the formation of experimental abdominal aortic aneurysm.
OBJECTIVE: The current study sought to investigate the role of estrogen in the formation of experimental abdominal aortic aneurysm (AAA). METHODS: Elastase perfusion of infrarenal AAA animal model was performed in 20 female and ...
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Thursday, July 3rd, 2008
Hepatic artery ligation: a simple and safe technique to treat extrahepatic aneurysms of the hepatic artery.
BACKGROUND: Treatment of patients with extrahepatic artery aneurysms (HAAs) is not well defined. The aim of this study was to report 4 patients with HAAs treated by ligation and to ...
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Thursday, July 3rd, 2008
Is surgical biopsy mandatory in case of atypical ductal hyperplasia on 11-gauge core needle biopsy? a retrospective study of 300 patients.
BACKGROUND: Atypical ductal hyperplasia (ADH) is diagnosed in 4% to 10% of directional vacuum-assisted stereotactic biopsies (DVABs) performed for microcalcifications. Since the underestimation rate varies ...
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Thursday, July 3rd, 2008
Proboscis-like Brunner\'s gland hyperplasia.
Hyperplasia of Brunner\'s glands is a benign lesion discovered incidentally in 2% of upper gastrointestinal endoscopies. An asymptomatic 34-year-old woman had a 12-cm duodenal lesion resembling an elephant\'s proboscis. It was removed surgically and proved to be Brunner\'s gland hyperplasia.
Chang CW, Chang ...
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Thursday, July 3rd, 2008
Significance of splenic vein thrombosis in chronic pancreatitis.
BACKGROUND: Splenic vein thrombosis leading to sinistral portal hypertension and variceal bleeding is a complication of chronic pancreatitis. The management of these patients without variceal bleeding remains controversial. METHODS: A total of 157 patients with chronic pancreatitis were ...
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Thursday, July 3rd, 2008
A rare case of ossification of a celiac cyst.
There has been little report on calcification of cysts inside the abdomen. Here we report a rare case of ossification of celiac cyst. If we understand the images of calcified and ossified cysts, a correct diagnosis can ...
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Thursday, July 3rd, 2008
Effects of medicinal mushroom (Sparassis crispa) on wound healing in streptozotocin-induced diabetic rats.
BACKGROUND: The impaired wound healing in diabetes mellitus is a major clinical problem. Sparassis crispa (SC) is a medicinal mushroom and its beta-glucan content is more than 40%. This study investigated whether oral ...
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Thursday, July 3rd, 2008
Building small dams can decrease malaria: A comparative study from Sundargarh District, Orissa, India.
The adverse health effect of environmental changes brought about with the construction of large and small dams has often been reported. Here, we present results of a 5-year (2001-2005) study documenting the ...
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Thursday, July 3rd, 2008
The influence of food on the pharmacokinetics of piperaquine in healthy Vietnamese volunteers.
The combination piperaquine and dihydroartemisinin is emerging as first line treatment of uncomplicated falciparum malaria in Southeast Asia. The aim of this study was to determine the influence of a standard Vietnamese meal ...
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Thursday, July 3rd, 2008
Radiology resident dictation instruction: effectiveness of the didactic lecture.
PURPOSE: The study\'s purpose was to determine the effectiveness of a didactic lecture for teaching and evaluating radiology resident dictation skills. METHODS: A 23-question test was created to assess resident knowledge of the American College of Radiology ...
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Thursday, July 3rd, 2008
Interdepartmental conflict management and negotiation in cardiovascular imaging.
Although the relationship between cardiologists and radiologists has a thorny history, advanced cardiac imaging technology and the promise of cardiac computed tomography are forcing both specialties back to the negotiation table. These discussions represent an opportunity for better ...
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Thursday, July 3rd, 2008
Update on the diagnostic radiology employment market: findings through 2007-2008.
PURPOSE: To describe the employment market for diagnostic radiologists in 2007-2008, with attention to differences among subspecialties. METHODS: The authors conducted the most recent in a series of annual surveys of vacancies in academic departments and ...
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Thursday, July 3rd, 2008
An update survey of academic radiologists\' clinical productivity.
RATIONALE AND OBJECTIVES: The total number of procedures and their relative value units (RVUs) were used to measure the productivity of radiologists. Besides variations in productivity due to differences in the percentage of clinical effort, baseline productivity also ...
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Thursday, July 3rd, 2008
Emergency department imaging: current practice.
PURPOSE: To provide a snapshot of the demographics of radiologists providing coverage for emergency departments (EDs) and current imaging practices in EDs in the United States. METHODS: An online survey was created with Views Flash 3 software (Cogix, Monterey, California). Random ...
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Thursday, July 3rd, 2008
Turf wars in radiology: updated evidence on the relationship between self-referral and the overutilization of imaging.
In a previous article in this series, published in 2004, the authors reviewed the medical literature for evidence on the relationship between self-referral and the utilization of imaging. That evidence ...
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Thursday, July 3rd, 2008
The growing size of radiology practices.
PURPOSE: To describe trends in the size of radiology practices from 1990 to 2007. METHODS: Data from the American College of Radiology\'s 1990, 1995, 2000, and 2003 surveys of radiologists and radiation oncologists and its 2007 survey of radiologist members ...
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Thursday, July 3rd, 2008
Structured reporting: coronary CT angiography: a white paper from the American College of Radiology and the North American Society for Cardiovascular Imaging.
With the growing use of electronic medical records, the trend of diagnostic imaging reporting is toward a more structured format. Advantages include improved quality ...
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Thursday, July 3rd, 2008
Hip fracture reduction in northwest arkansas nursing homes.
INTRODUCTION AND RATIONALE: Hip fracture rates in US nursing homes are alarmingly high, and low treatment rates of osteoporosis suggest a large degree of therapeutic nihilism among health care providers. Reports of reduction in hip fracture rates in ...
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Thursday, July 3rd, 2008
Pharmacological treatment of behavioral and psychological symptoms of dementia (BPSD) in nursing homes: development of practice recommendations in a Swiss canton.
OBJECTIVES: In 2002, the canton of Fribourg, Switzerland, implemented a coordinated pharmaceutical care service in nursing homes to promote rational drug use. In the context ...
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Thursday, July 3rd, 2008
Physical activity participation may offset some of the negative impact of diabetes on cognitive function.
OBJECTIVE: Diabetes increases an individual\'s risk of developing dementias (eg, vascular), whereas regular physical activity has been shown to lower this risk. The purpose of this study, therefore, was to examine ...
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