Cohesion is a degree that reflects the mutual attractions among the members in a group and pays attention to the status of members.It is association and distillation of all members'will and behavior extension in a group.The intensity of the group cohesion is the important symbol whether a group is competitive or not,and it plays an important role in the survival and the development of a group.This paper starts with the group cohesions of teachers in higher institutions and analyses the factors that affect the group cohesion in higher institution,On this basis,the paper puts forward the tactics in improving the group cohesion of higher institution.

Objective The generate of posterior capsular opacification(PCO)is associated with the adhensive and migration of residual subcapsular lens epithelial cells(LECs).Titanium dioxide(TiO_2)nanometer is proved to have the ability of killing tumor cells and cultured bovine LECs.This study tried to observe the effects of TiO_2 nanometer thin film provoked by light on adhesiveness and migration of bovine LECs in vitro.MethodsThe fresh bovine lenses were obtained and cultured in DMEM containing 10% of newborn bovine serum.The second to fifth generation of cells were used in this experiment.The slide modified by TiO_2 photocatalyst film was prepared by sol-gel method.Cultured cells were seeded in filmed or unfilmed slides respectively and exposed to ultraviolet(wavelength 365 nm)for 20 or 40 minutes.The contact angle between water drop and slide was measured by droping method and the cells adhered to slides were calculated after 24 and 48 hours of culture.The growth status and migration distance of bovine LECs were assayed and compared between filmed and unfilmed groups.ResultsThe contact angle between water drop and slide was 0°±2°and 18.825°±2.342° in filmed and unfilmed group respectively,indicating a obviously smaller contact angle in TiO_2 filmed group than unfilmed one.The numbers of bovine LECs adhered to filmed slide was considerably reduced in TiO_2 filmed group compared with unfilmed group in different UVA exposure time(t_(0 min)=5.492,P=0.001;t_(20 min)=6.031,P=0.000;t_(40 min)=6.828,P=0.000).However,no significant difference was found in the numbers of adhensive cells among 3 UVA irradiation time points(F=1.278,P=0.297).The migration distance of the cells was significantly shorter in TiO_2 filmed group in comparison with unfilmed group in 24 and 48 hours after UVA irradiation(F_(group)=14.965,P=0.000;F_(time)=38.033,P=0.000).ConclusionThe TiO_2 nanometer thin film is characterized by the superhydrophilic property.So it can effectively impede the adhesion and migration of bovine LECs in vitro.

OBJECTIVE:To explore the distribution and drug resistance of pathogens in patients with hospital-acquired pneumo-nia(HAP)from neurosurgery department of the First Affiliated Hospital of Xinjiang Medical University(called“our hospital”for short),so as to provide reference for clinical use of antibiotics in the clinic. METHODS:The pathogen culture and drug sensitivity test of 652 HAP patients were analyzed retrospectively in neurosurgery department of our hospital during May 2011 to May 2015. RESULTS:Of 652 cases,pathogens were detected in 608 cases,with positive rate of 93.3%. Among 608 strains of pathogen, there were 443 strains of Gram-negative bacteria(71.2%)as Klebsiella pneumonia,Pseudomonas aeruginosa and Escherichia co-li;108 strains of Gram-positive bacteria (17.8%) as Staphylococcus aureus and Streptococcus pneumoniae;67 strains of fungus (11.0%)as Candida albicans. There were 67 strains of ESBLs K. pneumonia,43 strains of ESBLs E. coli and 8 strains of methicil-lin-resistant coagulase negative Staphylococci. The drugs sensitive to Gram-negative bacteria included imipenem,piperacillin sodi-um and tazobactam sodium,cefepime,etc.;those sensitive to Gram-positive bacteria included vancomycin,etc. CONCLUSIONS:Main pathogen of HAP patients in neurosurgery department of our hospital are Gram-negative bacteria,and they were highly resis-tant to antibiotics;the highly sensitive drugs to HAP include imipenem and vancomycin,etc.;the antibiotics should be used ratio-nally according to etiological analysis.

Objective: To explore the correlation between the hemostatic activity and commercial grades of Panax notoginseng. Methods: After treatment with different commercial grades of P. notoginseng, the mice blooding time (BT) and clotting time (CT) were measured. At the same time the prothrombin time (PT), activation part thrombin time (APTT), fibrinogen (FIB), and platelet count (PLT) were also detected by fully automated blood cell analyzer. The contents of dencichine were determined by HPLC. Results: Mice BT, CT, PT, and APTT were decreased and PLT was increased significantly in all the commercial grades of P. notoginseng. Among all the commercial grades, the countless Tou Sanqi Powder has the best hemostatic activity. There is no correlation between the commercial grades and homostatic activity. Different contents of the extracted dencichine were observed among different commercial grades of P. notoginseng. The highest content of dencichine was 0.98% in countless Tou Sanqi and the lowest was 0.52% in 80 Tou Sanqi. There is no statistical correlation between the dencichine and hemostatic activity or dencichine and commercial grades of P. notoginseng. Conclusion: There is no statistical correlation between the commercial grades of P. notoginseng and haemostatic activity or dencichine contents. The dencichine in countless Tou Sanqi which is the cheapest of all displays the better hemostaic activity than those in 13 or 20 Tou Sanqi whose cost is almost as ten times as countless Tou Sanqi's.

OBJECTIVETo compare the efficacy differences between dog-days medicinal vesiculation and regular-day medicinal vesiculation for perennial allergic rhinitis (PAR), and observe their effects on serum immune globulin E (IgE) and interleukin-4 (IL-4).

METHODSSeventy-two patients were randomly divided into a dog-days moxibustion group (34 cases) and a regular-day moxibustion group (38 cases). In the dog-days moxibustion group, medicinal vesiculation was applied on the 1st dog-day, 2nd dog-day and last dog-day in summer by lunar calendar, 3 treatments per dog-day for totally 9 times. In the regular-day moxibustion group, the moxibustion was given on the regular day for continuous 9 times. The symptom score, rhinoconjunctivitis quality of life questionnaire (RQLQ) and the level of IgE and IL-4 were compared before and after treatment in two groups; the short-term and two-year efficacy evaluation were performed too.

RESULTSThe short-term total effective rate was 88.2% (30/34) in the dog-days moxibustion group, which was not significantly different to 86.8% (33/38) in the regular-day moxibustion group (P>0.05). The long-term total effective rate was 97.1% (33/34) in the dog-days moxibustion group, which was significantly superior to 81.6% (31/38) in the regular-day moxibustion group (P<0.05). After treatment, the serum IgE, IL-4 and RQLQ were significantly reduced (all P<0.01), but the difference between two groups was not significant (all P>0.05).

CONCLUSIONMedicinal moxibustion could be taken as a regular treatment for PAR, which could be performed during the whole year, and dog-days moxibustion could be considered as an enhanced method for prevention and treatment of PAR.

Acupuncture Therapy ; Adult ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Humans ; Male ; Rhinitis, Allergic, Perennial ; drug therapy ; therapy ; Treatment Outcome ; Young Adult

Objective To evaluate the development of immature oocytes after freezing-thawing by conventional cryopreservation method for mature oocytes.Methods Immature oocytes were collected from stimulated ovaries of intracytoplasmic sperm injection(ICSI)cycles.Immature oocytes were in vitro matured directly or after slow freezing-fast thawing and immunostained for tubulin and chromatin and at last visualized by confocal microscopy.Results No statistical difference was found in maturity rate between freezing groups and the controls.There was a statistically significant increase in abnormalities of chromosome(23.7% vs. 50%)and spindle(28.9% vs.53.9%)in the GV freezing group compared with the GV control(P

Air Pollutants, Occupational ; analysis ; Chromatography, Gas ; methods ; Dimethylamines ; analysis ; Methylamines ; analysis ; Workplace

ObjectiveTo investigate the early diagnosis value of IMA and D-dimer and cTn Ⅰ in ACS.MethodsAll the 113 blood samples of patients with chest pain in the emergency department of the Third Hospital of Hebei Medical University were selected.Thirty healthy people were selected as the control group.Patients were divided into two groups:one of 52 cases was within 3 hours after onset of chest pain.the other of 61 cases was between 3 to 6 hours.According to the final clinical diagnosis,31 cases were divided into non-ischemic chest pain group (NICP) and 82 cases were divided into the ACS group.The ACS group was divided into the UA group (51 cases),NSTEMI group (18 cases) and STEMI group (13 cases).IMA was measured with albumin-cobalt binding test,and D-dimer was measured with the automated blood coagulation analyzer,and cTn Ⅰ was measured with the automatic biochemical analyzer.Levels of IMA,D-dimer,cTn Ⅰ were compared in the different groups and their sensitivity,specificity and accuracy to the early diagnosis of ACS were evaluated by Four format diagnositic test.ResultsThe levels of IMA in ACS group,which include the UA group,NSTEMI group and STEMI group were (0.722 ± 0.181 ),(0.601 ± 0.122),(0.631 ± 0.153 ) ABSU respectively.The levels of D-dimer were ( 0.485 ± 0.124 ),( 0.571 ± 0.181 ),(0.748 ± 0.094 ) mg/L respectively.The levels of cTn Ⅰ were ( 0.076 ± 0.027 ),( 0.059 ± 0.038 ),(0.065 ± 0.015 )μg/L respectively.Concentrations of IMA,D-dimer and cTn Ⅰ in ACS group were significantly higher than those of the NICP group [IMA (0.338 ± 0.065 ) ABSU,D-dimer (0.368 ± 0.078 )mg/L,cTn Ⅰ (0.022 ±0.007) μg/L] and the controls group [IMA (0.292 ±0.058) ABSU,D-dimer (0.267 ±0.052) mg/L,cTn Ⅰ (0.029 ± 0.016) μg/L].There were significant differences between the ACS group and the NICP group and the control group,F value was 3.613,3.289 and 3.521 respectivily,and P ＜0.05.The levels of IMA in ACS group within 3 hours and between 3 to 6 hours,which is (0.665 ±0.104 ),(0.520 ± 0.073 ) ABSU,were significantly higher than that of the controls (0.292 ± 0.058 ) ABSU ( F value was 3.58,P ＜ 0.05 ).The levels of D-dimer and the cTn Ⅰ in the group between 3 to 6 hours [which were (0.634 ±0.213 ) mg/L and (0.079 ±0.032) μg/L] were significantly higher than those of the controls [(0.267 ±0.052) mg/L and (0.029 ±0.016) μg/L] (q was4.24 and 3.46,P ＜0.05).The sensitivity,specificity and accuracy was 83.36％,70.97％ and 81.42％ of the IMA in a separate diagnosis of ACS,but the sensitivity,specificity and accuracy were 97.56％,58.06％ and 86.73％ of the IMA,D-dimer and cTn Ⅰ with the affiliation diagnosis.ConclusionThe serum IMA is a more sensitive indicator of ACS in early myocardial ischemia than cTn Ⅰ and plasma D-dimer.Serum IMA in combination with D-dimer and cTn Ⅰ could improve the sensitivity and specitivity,and had value to guide cinical diagnosis of ACS in the early stage.

BACKGROUND: Umbilical cord blood-mesenchymal stem cells (UCB-MSCs) following differentiation into cardiomyocytes were transplanted into ischemic myocardium. The transplanted cells can build connection with host cells and repair the infarct myocardium. OBJECTIVE: To detect the cell-cell junction after transplantation of the cardiac-like cell derived from the canine umbilical cord blood stem cells. DESIGN, TIME AND SETTING: A randomized controlled animal study was performed from July 2006 to October 2007 at the Animal Experimental Center of Xinhua Hospital Affiliated to School of Medicine, Shanghai Jiao Tong University. MATERIALS: A total of 2 full-term pregnant canines were used for isolation of UCB-MSCs. A total of 36 adult mongrel canines were divided into cell transplantation group and model control group (n=18) according to the rule of random digits table. METHODS: The MSCs at passage 4 were transfected by Laz-Z. After 3-day culture, MSCs were induced by 10 μmol/L 5-azacytidine (5-aza). The canine models of myocardium infarction were established following 3 weeks of culture. 2 mL (1 ×107)MSCs were transplanted into dogs with acute myocardium infarction by coronary artery infusion and local injection in cell transplantation group. An equal volume of saline was used in the model control group. The specimens were harvested and detected at 2, 4 and 8 weeks, respectively. Cell junction was determined using immunohistochemistry. MAIN OUTCOME MEASURES: The following parameters were measured: gene trensfection, myogenic induction and differentiation results of UCB-MSCs; junction of transplanted cells and host cardiomyocytes. RESULTS: Following 72 hours of transfaction, mass of cells expressed LacZ gene, synthetized galactosidase, and stained blue using X-gal staining. Following 3 weeks of 5-aza induction, the antigen a-Actin, Desmin and Connexin43 were all been positively expressed, but before induction they were all negative. From the myocardial section of 8 weeks after transplantation, the junction was formed between the transplanted cells and the host myocardium as formed between the transplanted cells. In the junction, green-fluorescence positive expression of cadherin and connexin43 could be seen. However, in the model control group, only cadherin and connexin43 expressed positively, but the transplanted UCB-MSCs with red fluorescence could not been observed. CONCLUSION: The UCB-MSCs is able to differentiate into cardiac-like cell in vitro and form cell-cell junction in vivo to communicate with surrounding cells.