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61.
Background
The internet is an increasingly important tool for physicians, but the extent to which it is used by dermatologists is unknown. We aimed to investigate the utilization of the internet by dermatologists in Saudi Arabia for medical purposes during their daily practice and to clarify the reasons for its use and non-use.Methods
A self-administered questionnaire was distributed to all 160 dermatologists attending the National Dermatology conference in 2007.Results
A total of 107 questionnaires were completed. Sixty-two percent of respondents had access to the internet in the workplace. The use of the internet to update medical knowledge was reported by 91%. Only 27% had internet access in consultation rooms. The majority of information retrieval occurred outside patient consultation hours (91%). Only 13% reported using the internet during patient consultation. Possible reasons included: lack of access (54%), time pressure (37%), possible interference with the physician-patient relationship (30%), and that use of the internet was too time-consuming (10%). The mean searching time used to solve a clinical problem was 34 ± 3 minutes. Fifty-eight percent used Pubmed; however, 77% of the dermatologists had no training at all in how to use this tool.Conclusion
Professional medical use of the internet is widespread among dermatologists in Saudi Arabia. Providing access to the internet in the workplace and training of dermatologists to perform effective electronic searches are badly needed to improve the professional medical use of internet, which is expected to lead to better delivery of patient care. 相似文献62.
63.
关于儿童死亡焦虑的初步探讨 总被引:1,自引:0,他引:1
罗增让 《中国心理卫生杂志》1998,12(3):158-159
利用斯皮尔伯格儿童状态焦虑的图示式、死亡刺激和脸谱对三组49名儿童进行了死亡焦虑研究。结果表明,不同年龄组死亡焦虑得分存在明显差异,且焦虑水平随被试年龄的增加而升高。不同年龄的儿童对死亡对象的焦虑程度也不同。 相似文献
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SO Irving MB BS S Hardy MD FRCS NJ Bundred MD FRCS 《International journal of clinical practice》1995,49(3):154-154
SUMMARY This report of a paraplegic patient with a primary peritonitis illustrates the difficulty in diagnosis and management these patients pose. 相似文献
67.
Since considerable first-pass effects of azosemide have been reported after oral administration of the drug to rats and man, first-pass effects of azosemide were evaluated after intravenous, intraportal and oral administration, and intraduodenal instillation of the drug, to rats. The total body clearances of azosemide after intravenous (5 mg kg?) and intraportal (5 and 10 mg kg?) administration of the drug to rats were considerably smaller than the cardiac output of rats suggesting that the lung or heart first-pass effect (or both) of azosemide after oral administration of the drug to rats was negligible. The total area under the plasma concentration-time curve from time zero to time infinity (AUC) after intraportal administration (5 mg kg?) of the drug was significantly lower than that after intravenous administration (5 mg kg?) of the drug (1000 vs 1270 μg min mL?) suggesting that the liver first-pass effect of azosemide was approximately 20% in rats. The AUC from time 0 to 8 h (AUC0–8 h) after oral administration (5 mg kg?) of the drug was considerably smaller than that after intraportal administration (5 mg kg?) of the drug (271 vs 1580 μg min mL?) suggesting that there are considerable gastrointestinal first-pass effects of azosemide after oral administration of azosemide to rats. Although the AUC0–8 h after oral administration (5 mg kg?) of azosemide was approximately 15% lower than that after intraduodenal instillation (5 mg kg?) of the drug (271 vs 320 μg min mL?), the difference was not significant, suggesting that the gastric first-pass effect of azosemide was not considerable in rats. Azosemide was stable in human gastric juices and pH solutions ranging from 2 to 13. Almost complete absorption of azosemide from whole gastrointestinal tract was observed after oral administration of the drug to rats. The above data indicated that most of the orally administered azosemide disappeared (mainly due to metabolism) following intestinal first-pass in rats. 相似文献
68.
Outcome of tunneled hemodialysis catheters placed by radiologists 总被引:13,自引:1,他引:12
Lund GB; Trerotola SO; Scheel PF Jr; Savader SJ; Mitchell SE; Venbrux AC; Osterman FA Jr 《Radiology》1996,198(2):467
69.
S. Y. W. CHAN C. WANG M. NG W. W. K. SO P. C. HO 《International journal of andrology》1988,11(5):369-378
Multivariate discriminant analysis was used to evaluate the usefulness of routine semen parameters and the hypo-osmotic swelling test (HOST) as predictors of the in-vitro fertilizing capacity of human sperm as assessed by the zona-free hamster egg penetration assay (HEPA). Eighty-eight semen samples from untreated patients attending an infertility clinic were analysed. Semen samples were classified into the following three groups before statistical analysis: group 1--positive sperm penetration (greater than or equal to 10%, n = 39); group 2--borderline penetration rates for HEPA (greater than 0% but less than 10%, n = 39) and group 3--negative sperm penetration (0%, n = 10). The percentage of sperm with normal morphology and sperm count were found to be significant in discriminating between semen samples exhibiting different in-vitro fertilizing capacity. These two discriminating variables in combination gave an overall correct classification rate of 45.5%. The multivariate discriminant analysis was also performed after excluding the data of group 2 semen samples (n = 39), which exhibited borderline sperm penetration rates. As a result, three discriminating variables including semen volume, sperm count and the percentage of sperm with normal morphology were selected. These three variables in combination could accurately predict whether a semen sample would exhibit positive sperm penetration (group 1) or negative sperm penetration (group 3) with an overall accuracy of 75.5%. The percentage of swollen sperm after hypo-osmotic treatment was not related to the HEPA result, as determined by linear correlation and multiple regression analyses, and did not give additional information about the in-vitro fertilizing capacity of sperm as evaluated by multivariate discriminant analysis. 相似文献
70.
Sodium cromoglycate (SCG) powder often clumps in the presence of high humidity, making inhalation ineffective. A pressurized aerosol containing 1 mg SCG per actuation was made; and a double-blind cross-over trial in twenty-four young patients with perennial extrinsic asthma over 8 weeks showed that 2 mg of SCG aerosol was as effective as 20 mg of the powder, and almost all patients preferred using the aerosol. 相似文献