As a critical component of quality education,aesthetics education exerts profound significance on the cultivation of students featuring all-dimensional development and assumes an irreplaceable status in higher education.However,there are certain inadequacies in the course design of this regard.The thesis will investigate how to have a rational course design of aesthetics education to implement the teaching quality of aesthetics.

As the student communities develop rapidly,their activities become the new carrier of the ideological and political education work in universities.In his article,the author analyses the current situation,opportunities and challenges exerted by these communities on ideological and political education in universities,and discusses how to enhance the development of student communities from the perspective of ideological and political education as well.

Biomphalaria straminea,the intermediary host of Schistosoma mansoni,was found by survey in local areas of Shen-zhen City in 1981,which was the first finding of the snail in inland China. By 2013,the snail had spread in large range of Shen-zhen City and overspread to the surrounding regions,Dongguan City and Huizhou City. Due to the facts that Shenzhen City has many international communications and is a key area of labor export,with high population mobility,while the reports of S. manso-ni infection in the returnees of our country from Africa have been increasing recently,it must be paid a high attention to whether the epidemic or transmission of schistosomiasis mansoni may happen under the present circumstance. This paper initially discusses the finding,distribution,spreading and overspreading and transmission risk of B. straminea in inland China and puts forward some related control suggestions.

Objective To detect infection of Angiostrongylus cantonensis and examine effection of treatment to prepare monoclonal antibodies(McAbs). Methods Six-week-old BALB/c mice were imrnunized by the intraperitoneal injection of e/s antigens of Angiostrongylus cantonensis. Fusion of splecn cells from immunized mice with prepared SP2/0-Ag14 myeloma cells was performed in RPMI 1640. Fused cells were suspended in RPMI 1640 containing 1% HAT and 20% fetal calf serum and dispensed into 96-well cell culture plates. The supernatants of clones were screened by ELISA with sera of patients of angiostrongyliasis.Distribution of cohere antigen of 12D5 and 21B7 monoclonal antibodies was analyzed with immunohistochemistry. Two McAbs ( 12D5 and 21B7) were applied to detect the circulating antigen (CAg) in the sera of rats infected with A. cantonensis and angiostrongyliasis patients respectively by double antibody sandwich ELISA.Results 12D5 McAb was identified as IgG1 and 21 B7 McAb was IgM. Western blot result showed two McAbs could used to identified 55 × 103 protein of adult worms of A. cantonensis. Cohere antigen of 12D5 and 21B7 monoclonal antibodies were distributed on intestine surface of A. cantonensis. The detection rates of CAg in the sera of infected rats 100% (48/48), the detection rates of CAg in the sera of angiostrongyliasis patients was 100% (32/32). No cross-reaction to sera of patients with other infection of parasites, such as clonochiasis, fasiolopsiasis, ancylostomiasis, trichinosis, anisakiasis as well as schsitosomiasis, and health srea did not reacted with 12D5 and 21B7 McAbs,and detaction rate of antibody of angiostrongyliasis patients only reached 75% (24/32) with antigen of A. cantonensis. Conclusion Cohere antigen of 12D5 and 21B7monoclonal antibodies were antigens of enteric epithelium. Sandwich ELISA with 12D5 and 21B7 McAbs showed high specificity act as detecting CAg of A. cantonensis in sera of infection animal and patients. It is apparent that Sandwich ELISA with 12D5 and 21 B7 is not only rapid and simple without requirement of special instrument, but also rather sensitive and specific for the detection of current infection with A. cantonensis.

Objective To identify the species of Biomphalaria snails collected in Shenzhen reservoir,based on the mitochondrial 16S rDNA sequences.Methods The 16S rDNA fragments were amplified by PCR from the genome DNA of Biomphalaria snails,and inserted in plasmid pMD-18T for sequencing.The sequence of 16S rDNA fragment and its phylogenetic relationships with those of other species of Biomphalaria snails were analyzed with BLAST and MEGA4 software.Results The amplified 16S rDNA fragment of the Biomphalaria snails was about 466 bp in length.As aligned with the corresponding sequences of the related Biomphalaria species,the identity of nucleotides was 99％ with 1 isolate of Biomphaltria straminea (B.straminea),98％ with 3 isolates of B.kuhniana,95％ with 1 isolate of B.intermedia,and 94％ with 1 isolate of B.edisoni.Based on the 16S rDNA sequence,the results of phylogenetic analysis with neighbor-joining (NJ) and unweighted pair-group method with arithmetic means (UPGMA) indicated that the snails had close genetic relationships with the B.straminea isolate (Genbank accession NO.AY030213.1) Conclusion The Biomphalaria snails collected in Shenzhen reservoir could be classified as B.straminea based on the characteristics of 16S rDNA sequence.

A theoretical model was developed to simulate the coupling between the adhered leukocyte and blood flow. Methods of computational fluid dynamics (CFD) were introduced to analyze the distributions of the shear stress and the pressure on the cell surface. Meanwhile, the hemodynamical parameters were measured with laser Doppler velocimetry. The results showed that the deformation index of the leukocyte was increased with initial contact angle and Reynolds number. The blood flow induced the redistributions of the shear stress and pressure on the surface of the cell, but the maximum shear stress was on the top point of the cell. It suggests that the non-uniform distribution of shear stress on the cell surface may play a particular role in the change of cell shape and functions.
Blood Circulation ; physiology ; Cell Adhesion ; Hemodynamics ; Humans ; Leukocytes ; cytology ; physiology ; Models, Biological ; Regional Blood Flow ; Shear Strength

Objective To investigate the antimicrobial resistance of main clinical isolates from ICU during 2012 .Methods Auto-matic microbiology analysis system and the disk diffusion method were performed to determine the antimicrobial susceptibility .All the data were analyzed by WHONET5 .6 software according to the breakpoints of The American Association of Clinical Laboratory Standardization Institute (CLSI) 2012 .Results A total of non-repeated 1 374 clinical isolates were collected in ICU during 2012 , including 1 089 strains (79 .3% ) of Gram-negative bacilli and 285 strains (20 .7% )of Gram-positive cocci ;The top five pathogens were Acinetobacter baumannii ,Pseudomonas aeruginosa ,Escherichia coli ,Klebsiella pneumoniae and Staphylococcus aureus ;Some Enterobacteriaceae strains were resistant to imipenem or ertapenem .2 strains of Enterococcus faecium were found resistant to van-comycin .Conclusion Non-fermenting bacteria ,Enterobacteriaceae and Staphylococci remain the predominant pathogens isolated from the patients in ICU ,their drug resistance is serious ,it is important to use antibacterial agents rationally and strengthen the sur-veillance of bacterial drug resistance .

The distribution of shear stress on the bottom of the parallel plate flow chamber under different inlet velocities was analyzed by numerical simulation. In the present experimental study, the projection planes of the relative errors at 0.7% level were obtained, and then the efficient region and the actual entrance length were further corrected by introducing the concept of relative error. The results showed that the efficient region of the chamber increased with the direction of length while the inlet velocity was increased, and the actual entrance length was much greater than that of the theoretical entrance length. Therefore, in accordance to the needed range of shear stress in experiment and to the needed efficient region area, the optimum design of the flow chamber is necessary.
Algorithms ; Blood Flow Velocity ; Blood Pressure ; physiology ; Computer Simulation ; Humans ; Models, Cardiovascular ; Numerical Analysis, Computer-Assisted ; Pulsatile Flow ; Rheology ; Shear Strength ; Stress, Mechanical

The adhesion of leukocytes to substrate is an important biomedical engineering problem and has drawn extensive research. In this study, we have proposed a compound drop model to simulate a leukocyte with a nucleus adhered to the surface of a blood vessel under steady shear flow. A two-dimensional computational fluid dynamics (CFD) is conducted to determine the local distribution of pressure on the surface of the adherent model cell. By introducing the parameter of deformation index (DI), we have investigated the deformation of the model cell and it's nucleus under controlled conditions. Our numerical results show that: (1) the model cell is capable of deformation with the increase of initial contact angle, capillary number, and Reynolds number, and that the cytoplasm is more deformable while the nucleus is more capable of resisting external imposed shear flow; (2) the model cell is not able to deform infinitely with the increase of external shear flow because the deformation index reaches a maximum; (3) pressure distribution confirms that there exists a region downstream of the cell, which produces high pressure to retard continuous deformation and provide a positive lift force on the cell. Our results of nucleus deformation may help to develop a better understanding of how leukocytes transduce external mechanical signal like shear stress into nucleus.
Biomechanical Phenomena ; Blood Vessels ; cytology ; physiology ; Cell Adhesion ; physiology ; Cell Nucleus ; physiology ; Leukocytes ; physiology ; Models, Cardiovascular ; Numerical Analysis, Computer-Assisted

OBJECTIVETo investigate the effect of six cold traditional Chinese medicine on the energy metabolism factors in rats skeletal muscle.

METHODThe activity of Na(+)-K(+) -ATPase, Ca(2+) -ATPase and succinate dehydrogenase (SDH), the content of muscle glycogen, and the mRNA expression of skeletal muscle uncoupling protein 3 (UCP3) were measured after rats having been administrated with water extracts of Radix Sophorae Flavescentis, Fructus Gardeniae, Cortex Phellodendri, Radix Scutellariae, Rhizoma Coptidis, and Radix Gentianae respectively at the dose of 6.0, 7.0, 8.4, 6.0, 7.0, 4.0 g x kg(-1) for 30 days.

RESULTThe activity of Na(+) -K(+) -ATPase has been depressed significantly and the content of skeletal muscle glycogen has been increased remarkably by six cold traditional Chinese medicine. The decreased tendency has been found on activity of Ca(2+) -ATPase and SDH, only the Radix scutellariaeg group decreased the Ca(2+) -ATPase activity significantly (P < 0.05), the SDH activity was decreased high significantly by Radix scutellariae, Cortex Phellodendri, Radix Gentianae and significantly by Rhizoma Coptidis. The mRNA expression of UCP3 has been decreased high significantly by all five cold traditional Chinese medicine except Cortex Phellodendri group with the decreased tendency of UCP3 mRNA expression.

CONCLUSIONThe cold traditional Chinese medicine has the significant effects on the skeletal muscle energy metabolism by decreasing the utlization of the glucose and the activity of mitochondria SDH to reduce the production of ATP, and depressing the activity of Na(+)-K(+) -ATPase and Ca(2+) -ATPase to cut down the consumption of ATP, by decreasing the mRNA expression of UCP3 to decrease the heat production.

Animals ; Drugs, Chinese Herbal ; pharmacology ; Energy Metabolism ; drug effects ; Male ; Muscle, Skeletal ; drug effects ; metabolism ; Plants, Medicinal ; chemistry ; Random Allocation ; Rats ; Rats, Sprague-Dawley