Objective To analyze the literature of two core periodicals ,Military Medicine of the USA and Journal of the Royal Army Medical Corps of the UK,in order to highlight some important authors ,research institutes and some hot spots in the field of military medicine .Methods Citespace and Excel were used to analyze the data of authors institutes , keywords and citation frequency of the collected records .Results and Conclusion The core authors and critical research institutes are mainly from the USA and UK .America is absolutely taking the leading position in research on military medicine that focuses on injury risk factors , trauma and care , mental health , veteran affairs , military epidemiology and prevention .The results are of referential value for researchers and research administrators to find out about the main core authors ,research institutes and hot spots in military medicine .

Four methods for evaluating the academic impact of scholars were described according to their literature information, including subjective evaluation method, bibliometric method, social network analysis and comprehen-sive evaluation method .Their development trend was studied by analyzing their characteristics and applications .

Periprosthetic joint infection (PJI) is a devastating complication after total joint arthroplasty.Currently,PJI is the main cause for knee revision and the third reason for hip revision.Accurate diagnosis is of quite importance for patients with potential in revision surgery.However,there is no test alone can achieve both perfect sensitivity and specificity in diagnosis of PJI.The following diagnostic methods still have irreplaceable role,including erythrocyte sedimentation rate (ESR),C reactive protein (CRP) test,synovial white blood cell count and polymorphonuclear percentage,bacteria culture and histology analysis.Some novel diagnostic techniques,such as leucocytes esterase strip test,show advantages in diagnosing as fast,convenient and cost-saving.Synovial biomarkers,such as α-defensin,have promising prospect with both high sensitivity and specificity.Among various diagnostic methods,bacteria culture and drug sensitivity test can guide the therapy of PJI.Thus,it is crucial to improve the positive rate of bacteria culture.With the development of technology,sonication and polymerase chain reaction (PCR) will be the future research highlights.Although the imaging technologies,such as labeled leukocyte imaging and 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET),have been progressed in the past years,most of them are still in controversy.Further researches are still needed in the future.

Objective To study the effect of different prostaglandin E2 (PGE2) combined with tumor necrosis factor-?(TNF-?) to the IP3-Ca2+ pathway mediated by membrane TNF-?R of fibroblasts. Methods The lung fibroblasts of breed mouse were primarily cultured. 10 ?g/L TNF-? and 10 ?g/L TNF-? combined with PGE2 of different doses were added to culture medium of fibroblasts. At some observation time,the expression of TNF-?R on the cellular membrane of fibroblasts was detected by the method of immunohistochemistry,the level of IP3 in cells was detected by the method of radioimmunoassay and the contents of Ca2+ in fibroblasts by the method of flow cytometry. Results With doses of PGE2 increasing at 30 s time point and 60 s time point,the cpm value of IP3 of fibroblast decreased gradually. The cpm value of IP3 significantly increased when the dose of PGE2 was 1.0 ?g/L,but obviously lower when the dose of PGE2 was 2.0 ?g/L at 120 s time point. The expression of TNF-?R and the contents of Ca2+ decreased in a dose-dependent way with the dose of PGE2 increasing. Conclusion Certain dose of PGE2 could suppress the effect that TNF-? enhance the cell proliferation of fibroblast by the IP3-Ca2+ pathway mediated by membrane TNF-?R of fibroblasts.

Objective To explore smoking -related health knowledge and attitudes and their association with smoking behaviors among high school students in Shanghai. Methods With stratified random sampling, 9239 students aged 11~20 years old from 57 high schools (19 from each of primary, secondary and professional schools) distributing in whole city were investigated with questionnaire which self -completed anonymously by the students. The contents of the questionnaire included smoking behavior, relation between smoking and health, and attitude to tobacco control policies. Results Of those 9 239 students, there were 19.5% (male 28.2%, female 10.2%) of them who ever smoked; the total mean score of their knowledge and attitude to smoking and health-related issues was 54.42?7.274 (the maximum was 65), and the ratio of total mean score and the maximum score was 0.8065, the highest ratio (0.9767) was found in awareness that smoking was harmful and the lowest (0.3825) in awareness of tobacco control rules and regulations. The scores of each smoking and health -related knowledge and attitude were decreased with increase of cigarette number smoked by students. Compared with other high schools, the lowest scores of each indexes and the highest rate of smoking were found in vocational schools. Conclusion It was found that the smoking behavior was related with their knowledge and attitude that smoking was harmful among high school students in Shanghai. And the tobacco control and intervention should be mainly developed in students of vocational schools.

Objective To discuss the role of combined external beam radiotherapy and intraluminal brachytherapy for tracheal cancer and bronchogenic carcinoma. Methods From February 1987 to August 1996, 4 patients with primary tracheal cancer, 22 with primary lung cancer and 14 (18 sites) with postoperative recurrent lung cancer were irradiated. External beam radiotherapy (EBR ) was delivered with linac X-ray to a total dose of 30-77?Gy (median 52?Gy). Intraluminal irradiation (IR ) was delivered with low dose rate 192 Ir (1.48?BGq) to a total dose of 10-53?Gy (median 28?Gy), 4-6?Gy per fraction on the bronchial mucosa. Results Complete response (CR) was obtained in 37 patients, partial response (PR) in 2 and minor response (MR) in 1. The 3-year and 5-year local control rates by Kaplan-Meier method were 75% and 65%. Twenty-three patients have survived for 3 years or longer, with a 3-year survival rate of 57.5%. Complications were rare. Conclusions Combined external beam radiotherapy and intraluminal irradiation is effective for primary lung cancer and localized tracheal cancer, possibly giving long-term survivals.

OBJECTIVE:To study the in vitro release of lyophilized aclacinimycin A solid lipid nanoparticles(ACM-SLN). METHODS:The release was studied by dynamic dialysis method.Different equations were selected to fit the release law.RESU_ LTS&CONCLUSION:It is good to fit the release law by1 st order equation and Weibull equation.

Objective To summarize the experience of ventriculo-peritoneal (V-P) shunt under micro-laparoscope for the treatment of hydrocephalus. Methods Twenty-eight patients with hydrocephalus were treated by V-P shunt under micro-laparoscope from November 2000 to May 2004. An infraumbilical trocar was placed through a 5 mm incision to introduce the operating laparoscope. Under laparoscopic visualization, a 3 mm trocar was introduced into the abdominal cavity along the right side of the ligamentum teres hepatis through an incision just to the right of the xiphoid process. A 1.5 mm subcutaneous incision at the corresponding site of the diaphragmatic surface of the liver on the right anterior axillary line was made and through it a sewing needle with 4-gauge unabsorbable silk suture was delivered into. A grasping forceps was inserted through the xiphoid port into the abdominal cavity to carry the two sides of the suture out. The V-P tubing was fixed in the interspace between the liver and the diaphragm by the ligation from the outside, and then was tunneled to the head. Results All the operations were successfully accomplished. The operation time for iutraabdominal tube placement was 5~10 min.All the patients experienced complete alleviation of symptoms of intracranial hypertension postoperatively. No surgical complications occurred.Follow-up check-ups for 6~36 months(mean,12 months) in 25 patients found no tube obstruction. Conclusions Ventriculo-peritoneal shunt under micro-laparoscope has the advantages of minimal invasion, precise positioning, excellent visualization and rapid recovery, being a safe and feasible method which is worthy of recommendation.

The great changes taking place in the environment of academic library were analyzed from the aspects of networked information environment, knowledge-based user needs and homogenized library resources. The main up-date development characteristics of academic library were described according to the current development situation in foreign and domestic academic libraries as revealed in our investigation, such as e-only of library resources, knowledge-based and embedded information service, associated, semantic and integrated information organization, incorporation of primary information resources into institutional knowledge property management, digital library emerged in scientific data monitoring centers, SoLoMo as the concept for creating the next generation mobile library service. It was pointed out that academic library will become the user-oriented knowledge service center that provides user-driving knowledge service and intelligent knowledge service in an all-inclusive knowledge management manner. It is thus necessary for academic library to attach more importance on the information needs of scientific workers, to strengthen the user-oriented professional work layout, application of information technology, interlibrary coopera-tion and resources-sharing, and to improve the information literacy of librarians.

The article presents the contents of marketing of medical information services,explores the model of the marketing of medical information services suitable for the Medical Library of Chinese PLA,discusses the meaning of the marketing of medical information services,the status in this field in China and other countries,and the efforts we need to make next.The purpose is to match the information services to the information needs,support the innovation of medical science.