This article presents the feasibility on application of TiO 2 photocatalysis in drinking water disinfection involving the removal of organic contaminants, inactivation of bacteria and virus. However, the efficacies of TiO 2 photocatalyst in killing of recalcitrant pathogenic protozoans such as Giardia lambia and Cyptosporidium or persistent algae need frurther investigation, and the photocatalytic approach lacks any residual disinfection capacity.

The recent developments in purification and disinfect of drinking water as well as wastewater treatment adopting solar energy-titanium dioxide(TiO2)catalytic technology are introduced in general in the present review. The advantages of this technology are titanium dioxide catalytic agent with strong sunlight absorption in near ultraviolet ray range, lasting catalytic reaction, chemical stable and innocent for human and environment. The oxidizer produced during ray catalytic has strong oxide action that can kill most microorganisms and decompose most organic pollutants. This technology has widespread practical value in the remote areas and rural areas because it does not consume electric energy

Objective To explore the methods of breast tumor surgery information platform construction.Method To construct the information platform from target location,overall framework,function etc.Result The building of information platform provided a full range of care for breast cancer patients.Conclusion The construction of information platform can further improve the quality of nursing in breast cancer patients.

Objective To investigate the relationship factor of livability on Premature Very Low-Birth-Weight-Infant (PVLBWL), for refer to evidences that reduce the mortality and the deformity rate. Methods The group 116 PVLBWL cases, being in our hospital hear five years, divide into three team according to the weight, and analyze the review clinical data of the cases (from 1993.1 to 1998.1). Results There are 86 cases that had cured and left hospital in the group. The cure rate is 74.1%(86/116). It is rise along with the weight increase (P

Objective To probe the effect of nursing interventions on depression of patients with acute stroke.Methods 72 cases of stroke patients with depression screened by Hamilton depression scale (HAMD)were divided into the intervention group and the control group with 36 cases in each group.The control group received routine treatment.The intervention group wag given nursing intervention based on routine treatment.The effect was assessed before and after 3,6 and 12 months of intervention with Zung self-rating depression scale(SDS)and improved Rankin scale(MRS). Results The value of SDS after 3,6 or 12 months was significantly lower than that of the control group(P＜0.05),and the value of MRS was significantly higher than that of the control group(P＜0.05).Conclusion Nursing intervention can reduce depression in patients with post-stroke depression.

Hypoxic cells that exist in nasopharyngeal cancer can not be killed easily and they are the underlying cause for recurrence and metastasis. In radiotherapy for nasopharyngeal cancer, the application of Qi-benefiting and blood-supplementing Chinese medicines can improve blood circulation, increase oxygenation of tumor body, and ameliorating the status of hypoxic cells. Besides medical ozone can promote oxygen-carrying ability of hemoglobin and releasing of oxygen capacity and improve oxygen supplying. If the method of radiotherapy combined with ozone and Chinese medicines can solve the problem of resistance of hypoxic cells to radiation and promote the oxygen effect in radiation and the interaction between organisms, then it will play an important role in the treatment of nasopharyngeal cancer.

Objective To investigate the effect factors for language and memory dominance testing in propofol Wada test in refractory epilepsy patients.Methods From January 2010 to August 2013,total of 23 patients underwent propofol Wada tests for language and memory dominance evaluation.According the performance in language test and memory test,the patients were divided into two groups,respectively:succeed with test or failed in test.The relevant factors including age,duration of epilepsy,handedness,FIQ (full scale of intelligence quotient),lateralization of lesions,language dominance,dose of propofol and the adverse effects of propofol were recorded as independent variables.Logistic regression was adopted to screen the effect factors for memory dominance evaluation.All statistical analyses were processed with SPSS software.Results All 23 patients succeeded with language test,but only 13 patients succeed with memory test.The difference of success ratios between language test and memory test was significant (P=0.001).For memory test,the difference of duration of epilepsy and FIQ in success group and failed group was significantly different (duration of epilepsy:(10.57±4.68) vs (18.30±9.30),P=0.032,FIQ:(81 ±25.33) vs (64.2±10.86),P=0.046).More grade Ⅱ adverse effects of propofol occured in the patients who failed in memory test (P=0.011).Logistic regression results indicated the grade Ⅱ adverse effects of propofol were the main risk factor for memory test failure (OR=28.0,P＜0.01).Conclusions Propofol Wada test is an effective method for language dominance evaluation.However,the effect factors for memory dominance evaluation are much more than language evaluation,such as duration of epilepsy,FIQ and grade Ⅱ adverse effects of propofol,and grade Ⅱ adverse effects of propofol may be the most significant risk factor.

Objective To observe the effect and nursing measures of treating diabetic peripheral nerve dis-ease with method of Fuming and washing formula of Strengthening Qi to Dredging combined with point massage.Methods 68 DPN patients who were confirmed to the diagnostic criteria were randomly divided into the observation group and the control group with 34 patients in each,they were treated by conventional treatment but additional Fuming and washing formula of Strengthening Qi to Dredging combined with point massage was used in the observation group.The course for both groups was 4 weeks.The curative effects obtained were compared after treatment.Results The total effective rate was higher in the observation group(94.1%) than that in the control group(67.6%).Conclusions Fuming and washing formula of Strengthening Qi to Dredging combined with point massage treatment on DPN has better effect than western medicine alone in promoting DPN restoration.

Objective To study the change of liver micro-circulation in liver cancer patients after interventional therapy by using CT perfusion imaging.MethodThe patients were dividecl into two groups: therapy group and control group.Each group had 30 patients.CT perfusion imaging scanning was done for the patients by using the Light speed 16 CT with the MSCT "Toggling-table" technology.The data was analyzed by single variance.The interested area of liver tissue was chosen as area without iodine after interventional therapy.The parameters of perfusion imaging were MTT,BF,BV,PS and HAF.ResultsSignificance of BF and BV existed in the liver tissue between therapy group and control group.The relatively normal liver tissue and the tissue in the same side had significance of BF,BV,MTT,PS in the two groups.In the therapy group,significance of BF,BV existed in the liver tissue of both side.ConclusionThe interventional therapy combined with Chinese traditional medicine can raise life quality of the patients,relieve the clinical symptom and improve the physical sign.The perfusion imaging of liver cancer,as a simple,rapid,no trauma methed,can supply the blood perfusion information of various positions as well as displaying anatomic details,which has provided a new kind of method for evaluating the effect of chemoembolization and traditional Chinese medicine.

AIM:To study the expression of metastasis suppressor gene KAI1 mRNA in osteosarcoma tissue and osteosarcoma cell lines,and the relationship between it and the biological behavior of the tumor cells.METHODS:RT-PCR was used to detect KAI1 mRNA in 18 cases of resected fresh osteosarcoma samples and three cultured osteosarcoma cell lines.The proliferative rate,the adhesive and invasive abilities of the 3 cell lines were detected.The results were treated by analysis system of images and analyzed with t test.RESULTS:The relative amount of KAI1 mRNA in osteosarcomas with lung metastasis was 0.80?0.50,while that was 1.48?0.64 in osteosarcomas without lung metastasis,the former was significantly lower than the latter(P