The residual aluminium was seldomly determined in drinking water treated by polyaluminium chloride(PAC). With the widespread application of polyaluminium chloride to water coagulation,it was possible that the overintake of aluminium could result in some adverse consequences for human and their living environment. Based on themechanism of water coagulativone of PAC,the compound formation of aluminium existing in drinking water,the regularity of the variation of the levels of residual aluminium with the pH value and its relative environmental and biological effects were introduced in details. The relative factors effecting the levels of residual aluminium in drinkingwater and the objective necessity of closely monitoring the variation of the residual aluminium in drinking water wereanalysed in the article.

OBJECTIVE:To provide suggestion for full implementation and improvement of the national essential drug system in our country. METHODS:To analyze the defects of the Implementation process of national essential drug system in our country, and make recommendations for improvement. RESULTS & CONCLUSON: The system has been put into effect for one year; There were some performances and obvious defects in the national essential drug system in our country. Obviously, the problems of bid inviting and circulation were serious. And because of the low level of primary medical institution, it obstructed the pursue of system, we must vigorously promote and improve it, and to meet the people's demand of drugs.

It is considered that formula screening should be in accordance with the heory of Traditional Chinese Medicine, and the composition of formula should be simpliied. The doses of each ingredient and whole formula should be paid attention. In order to arantee the safety ana offectiveness of the preparation, the method of dose screening was roposed.

OBJECTIVE To analyze the morbility of nosocomial pulmonary acquired infection and related factors after operation of head injury,and inquire into effective countermeasures. METHODS By methods of retrospective investigation,280 patients in hospital form Jan 2005 to Jan 2007 operated for craniocerebral trauma had investigated on mortality rates of pulmonary infection and related factorsRESULTS The rates of pulmonary infection was 18.2% in 280 patients,the death rate was 38.7% in infected group. and group 13.7% in uninfected. The risk factors of nosocomial pulmonary infection were lower immunity among elderly patients,long-time in hospital,general anesthesia intubation,trachea incision and the use of respiraters. CONCLUSIONS The mortality and morbidity rates of pulmonary infection are both higher for the head injury patients. It's important to prevent infection. According to the main risk factors,to take corresponding protection measures,comprehensive supervision,and emphasis enhencing prevention and control;meanwhile to improve the quality of treatment and nurse,and reduce morbility and death rates of pulmonary infection.

Objective To explore the locus of control and the relationship with parenting patterns of ado-lescents with first-onset major depressive disorder (MDD). Methods Patients with first-onset MDD (n= 98) and controls (n=98) were investigated by Sphere of Control Questionaire and EMBU, the results were compared and analyzed correlatively. Results The scores of the individual strength scale ( 37.47±13.66) and the relations with people scale ( 38.65±13.19 ) of patients were significantly lower(P<0.05 ) than the controls [(45.39± 12.84) and (45.90±11.20 ) each], while the scores of social-political management (39.01±10.28) were not significantly lower (P>0.05)than the controls' (39.12±9.50). The scores of patients' paternal excessive inter-ference factor(2.66±0.49) , maternal excessive protection/interference (2.79±0.55 ) and rejection/denial fac-tor(2.55±0.39) of EMBU were significantly higher(P<0.05)than controls' [(2.17±0.58),(2.17±0.49) and( 1.75±0.51 ) each]. The scores of patients' paternal affection/understanding factor were significantly posi-tively correlative with patients' scores of relations with people (r=0.27, P<0.05), maternal affection/under-standing factor was significantly positively correlative with patients' scores of individual strength (r=0.21, P <0.05) and relations with people(r=0.23, P<0.05 ) , while maternal excessive interference/excessive protection and individual strength (r=-0.24, P<0.05 ) and relations with people (r=-0.22, P<0.05), maternal rejec-tion/denial and individual strength (r=-0.26, P<0.05) were significantly negatively correlative. Conclusion Adolescents with MDD have abnormal locus of control,which might be correlative with their parenting patterns.

Objective] From the Chinese point of view of haze-induced lung injury pathogenesis, diagnosis and treatment, it provides theoretical support. [Method] To exogenous disease TCM theory, the nature of the haze of evils, a sense of evil ways and pathogenic characteristics, etc. based on the analysis of the haze of the etiology and pathogenesis of lung injury, the basic pathogenesis are analyzed and discussed. [Results] For haze pathogenic proposed basic principles should be taken to the prevention, prevention is greater than cure, the treatment should be Quxie, and to righten. Work using the method of elimination of pathogens through purgation and churesis.[Conclusion]For haze urgent treatment, prevention and treatment of traditional Chinese medicine for haze-induced lung injury has very important theoretical and practical value.

ObjectiveTo investigate the clinical efficacy of Yaotongxue(Ex-UE7)finger manipulation plus ultrashort waves in treating acute lumbar sprain.MethodForty-two patients with acute lumbar sprain were enrolled and randomized into groups. The control group received lumbar ultrashort waves treatment and the observation group, Yaotongxue finger manipulation in addition. Pain relief and activities of daily living were assessed using the Visual Analogue Scale (VAS) and the Barthel Index before and after one and five sessions of treatment.ResultThere was no statistically significant pre-treatment difference in the VAS score between the two groups (P>0.05). After one and five sessions of treatment, the VAS score was significantly lower in the observation group than in the control group and there was a statistically significant difference (P<0.05); the Barthel Index score was significantly higher in the observation group than in the control group and there was a statistically significant difference (P<0.05). at three months of follow-up, the VAS score and the Barthel Index score were basically normal; there were no statistically significant differences between the two groups (P>0.05). No adverse events occurred during the study.ConclusionYaotongxue finger manipulation plus ultrashort waves is safe and highly effective in treating acute lumbar sprain.

Objective To investigate the influence of psychological intervention on the anxiety of patients with obstructive jaundice and supply theoretical reference for psychological evaluation and nutsing.Methods 129 patients with obstructive jaundice was divided into the intervention group(64 cases)and the control group(65 cases).The control group adopted routine treatraent method such as anti-infection,liver protection treatment,enhancement of coagulation mechanism and supporting treatment.The intervention group received psychological nursing,relaxation training and distraction of attention based upon routine nursing.The degree of anxiety and pruritus was obseved and recorded in the two groups.Results The degree of anxiety in the intervention group was evidently lower than that of the control group(P＜0.01).The degree of pruritus in the intervention group was 18.75%,which was statistically different from that of the control group(35.38%),P＜0.05.Condusion Adoption of psychological intervention could effectively reduce the degree of anxiety and pruritus of patients with obstructive jaundice.

The research of the secondary damage remote from middle cerebral artery territory infarction has made significant progress in recent years.More animal experiments from the cellular,biochemical and molecular levels have been performed for in-depth and detailed research on remote site damage. The injury mechanisms such as oxidative damage and β amyloid deposition have been found.The new imaging detection technologies,such as magnetic resonance diffusion tensor imaging(DTI),have gradually been applied to the diagnosis of remote site damage.

Objective:To investigate the culture technique and secretory function of parathyroid cells in rats in order to establish experimental basis of parathyroid cell transplantation.Methods:After parathyroid glands were digested by collagenase and trypsin,isolated parathyroid cells were cultured.The cells cultured for 5 days were observed by transmission electron microscopy.Parathyroid hormone obtained from the cell culture fluid on day 1,3,5 and 7 was measured respectively.Results:Parathyroid cells cultured for 5 days had abundant rough surfaced endoplasmic reticula、Golgi bodies、stab mitochondria and secretory granules.Cultured parathyroid cells could secrete parathyroid hormone normally,especially on the 5th day.Conclusion:Parathyroid cells cultured for 5 days still possess original morphologic structure and have maximum secreting function,so it is an optimal donor for transplantation.