The effect of ZnO and low y-radiation on PLA based-films was investigated to be used for food packaging application. Ham slices were inoculated with E. coli, L. innocua and S. enterica and then covered with PLA and PL...The effect of ZnO and low y-radiation on PLA based-films was investigated to be used for food packaging application. Ham slices were inoculated with E. coli, L. innocua and S. enterica and then covered with PLA and PLA/5% ZnO films. The samples were irradiated with a y-radiation dose of 0.3 kGy at dose rate of 13.5 kGy/h. Microbiological analysis was performed at 0, 1 and 5 days on samples stored at 4 ℃. Results showed that no consistent reduction of bacteria was obtained, even at the fifth day of storage, when the ham was covered with PLA/5% ZnO film and no γ-radiation was performed. The use of γ-radiation results necessary to reduce the bacteria growth. In fact E. coli and S. enterica were not detected after 5 days of storage; whereas in the case of test with L. innocua a reduction of 1.3 log CFU/g was observed after 5 days of storage. The antibacterial results indicate that the presence of ZnO in PLA film is effective only for E. coll. The differences of the results obtained here with those reported in literature （where ZnO particles are reported to be very effective as antimicrobial material） are accounted for the different methodologies used. In conclusion considering the positive results, even if small, obtained here at least only for the E. Coli and considering that PLA/5% ZnO film shows, compared to plain PLA film, good tensile properties （especially Young＇s modulus and stress at yielding） and good permeability （to O2 and CO2） induce to consider the PLA/5% ZnO composite film usable for food packaging when long shelf life and food safety are required, considering also that it is biodegradable and compostable.展开更多
Some criminal cases happen campus in recent years.A typical case is the Fudan poison case.The case is closed,but the effect does not end.The objectives of this paper were explore:the personality profile of poison case...Some criminal cases happen campus in recent years.A typical case is the Fudan poison case.The case is closed,but the effect does not end.The objectives of this paper were explore:the personality profile of poison case offender;effects of poison case and to whom they hurt;how to prevent such criminal case.A ten-person focus group interview was used.Content analysis was used for data.展开更多
Objective： The aim of the study was to investigate the relationship between expressions of estrogen receptor （ER）, progesterone receptor （PR） and gender, age, tumor size, lymph node metastasis, capsular invasion ...Objective： The aim of the study was to investigate the relationship between expressions of estrogen receptor （ER）, progesterone receptor （PR） and gender, age, tumor size, lymph node metastasis, capsular invasion and histological type of differentiated thyroid carcinoma （DTC）. Methods： Seventy cases of DTC who received surgery in our hospital （No. 401 Hospital of People＇s Liberation Army, Qingdao, China） between January 2008 and December 2011 were selected. Among them, 61 cases were papillary carcinoma and 9 cases were follicular carcinoma. Twenty cases were normal thyroid tissue adjacent to the tumor which was used as control. Immunohistochemical SP method was employed to detect the expression of ER and PR. Results： The positive rates of ER and PR in tumor tissues of DTC patients were 21.4% （15/70） and 31.4% （22/70）, respectively, and no expression of ER or PR were founded in normal thyroid tissue （P 〈 0.01）. The expressions of ER and PR were related to the lymph node metastasis and capsular invasion （X2 = 16.913 and 6.327, P 〈 0.05; x2 = 7.516 and 12.727, P 〈 0.05）. No relationship was observed between the expressions of EPJPR and gender, age, and histological type （P 〉 0.05） of DTC patients. Conclusion： The expression levels of ER and PR in the tumor tissue of DTC patients were higher than those in the normal thyroid tissue nearby the tumor. Therefore, ER and PR expression might be clinical markers for DTC and its prognosis.展开更多
Alpine-cold regions are characterized as hypoxia,strong wind,heavy rain,cold climate,huge temperature difference between day and night,and vertical climate. All these make it difficult for an emergency rescue when a n...Alpine-cold regions are characterized as hypoxia,strong wind,heavy rain,cold climate,huge temperature difference between day and night,and vertical climate. All these make it difficult for an emergency rescue when a natural disaster such as earthquake happens. Based on the characteristics of emergency rescue in alpinecold region,several multifunctional protective equipments have been developed by the Quartermaster Equipment Institute of General Logistics Departmen(tGLD)of the Chinese People's Liberation Army(CPLA). These equipments are lightweight,durable and environment adaptable.展开更多
OBjECTIVE:To observe the efficacy and safety of oral Sanhuangwuji powder,anti-rheumatic drugs(ARDs),and ginger-partitioned acupoint stimulation at Zusanli(ST 36) on the treatment of rheumatoid arthritis(RA) complicate...OBjECTIVE:To observe the efficacy and safety of oral Sanhuangwuji powder,anti-rheumatic drugs(ARDs),and ginger-partitioned acupoint stimulation at Zusanli(ST 36) on the treatment of rheumatoid arthritis(RA) complicated by peptic ulcer.METHODS:This prospective randomized controlled study included 180 eligible inpatients and outpatients randomly assigned to an ARD treatment(n = 60),ginger-partitioned stimulation(n =60),or combination treatment(n = 60).Patients assigned to the ARD group were given oral celecoxib,methotrexate,and esomeprazole.Patients assigned to theginger-partitioned stimulation group were given ginger-partitioned acupoint stimulation at Zusanli(ST 36) in addition to the ARDs.Patients in the combination treatment group were given oral Sanhuangwuji powder,ginger-partitioned acupoint stimulation at Zusanli(ST 36),and ARDs.All patients were followed up for 2 months to evaluate clinical effects and safety.The study was registered in the World Health Organization database at the General Hospital of Chengdu Military Area Command Chinese People's Liberation Army(ChiCTR-TCC12002824).RESULTS:The combination treatment group had significantly greater improvements in RA symptoms,laboratory outcomes,and gastrointestinal symptom scores,compared with the other groups(P < 0.05).The peptic ulcer healing rate in the combination treatment group was significantly greater than that in the ARD treatment group(x^2 = 16.875,P < 0.05) and the ginger-partitioned stimulation group(x^2 = 6.171,P<0.05).CONCLUSION:Combination treatment with ginger-partitioned acupoint stimulation at Zusanli(ST36),oral Sanhuangwuji powder,and ARDs had a better clinical effect for RA with complicated peptic ulcer,compared with ARD treatmentalone or in combination with ginger-partitioned acupoint stimulation.展开更多
文摘The effect of ZnO and low y-radiation on PLA based-films was investigated to be used for food packaging application. Ham slices were inoculated with E. coli, L. innocua and S. enterica and then covered with PLA and PLA/5% ZnO films. The samples were irradiated with a y-radiation dose of 0.3 kGy at dose rate of 13.5 kGy/h. Microbiological analysis was performed at 0, 1 and 5 days on samples stored at 4 ℃. Results showed that no consistent reduction of bacteria was obtained, even at the fifth day of storage, when the ham was covered with PLA/5% ZnO film and no γ-radiation was performed. The use of γ-radiation results necessary to reduce the bacteria growth. In fact E. coli and S. enterica were not detected after 5 days of storage; whereas in the case of test with L. innocua a reduction of 1.3 log CFU/g was observed after 5 days of storage. The antibacterial results indicate that the presence of ZnO in PLA film is effective only for E. coll. The differences of the results obtained here with those reported in literature （where ZnO particles are reported to be very effective as antimicrobial material） are accounted for the different methodologies used. In conclusion considering the positive results, even if small, obtained here at least only for the E. Coli and considering that PLA/5% ZnO film shows, compared to plain PLA film, good tensile properties （especially Young＇s modulus and stress at yielding） and good permeability （to O2 and CO2） induce to consider the PLA/5% ZnO composite film usable for food packaging when long shelf life and food safety are required, considering also that it is biodegradable and compostable.
文摘Some criminal cases happen campus in recent years.A typical case is the Fudan poison case.The case is closed,but the effect does not end.The objectives of this paper were explore:the personality profile of poison case offender;effects of poison case and to whom they hurt;how to prevent such criminal case.A ten-person focus group interview was used.Content analysis was used for data.
文摘Objective： The aim of the study was to investigate the relationship between expressions of estrogen receptor （ER）, progesterone receptor （PR） and gender, age, tumor size, lymph node metastasis, capsular invasion and histological type of differentiated thyroid carcinoma （DTC）. Methods： Seventy cases of DTC who received surgery in our hospital （No. 401 Hospital of People＇s Liberation Army, Qingdao, China） between January 2008 and December 2011 were selected. Among them, 61 cases were papillary carcinoma and 9 cases were follicular carcinoma. Twenty cases were normal thyroid tissue adjacent to the tumor which was used as control. Immunohistochemical SP method was employed to detect the expression of ER and PR. Results： The positive rates of ER and PR in tumor tissues of DTC patients were 21.4% （15/70） and 31.4% （22/70）, respectively, and no expression of ER or PR were founded in normal thyroid tissue （P 〈 0.01）. The expressions of ER and PR were related to the lymph node metastasis and capsular invasion （X2 = 16.913 and 6.327, P 〈 0.05; x2 = 7.516 and 12.727, P 〈 0.05）. No relationship was observed between the expressions of EPJPR and gender, age, and histological type （P 〉 0.05） of DTC patients. Conclusion： The expression levels of ER and PR in the tumor tissue of DTC patients were higher than those in the normal thyroid tissue nearby the tumor. Therefore, ER and PR expression might be clinical markers for DTC and its prognosis.
文摘Alpine-cold regions are characterized as hypoxia,strong wind,heavy rain,cold climate,huge temperature difference between day and night,and vertical climate. All these make it difficult for an emergency rescue when a natural disaster such as earthquake happens. Based on the characteristics of emergency rescue in alpinecold region,several multifunctional protective equipments have been developed by the Quartermaster Equipment Institute of General Logistics Departmen(tGLD)of the Chinese People's Liberation Army(CPLA). These equipments are lightweight,durable and environment adaptable.
基金the Scientific Research Foundation of Sichuan Health Department(Study of the Regulatory Mechanism of Th Cells in Rheumatoid Arthritis Treated with Sanhuangylong Decoction and Its Component United With Methotrexate,No.120573)
文摘OBjECTIVE:To observe the efficacy and safety of oral Sanhuangwuji powder,anti-rheumatic drugs(ARDs),and ginger-partitioned acupoint stimulation at Zusanli(ST 36) on the treatment of rheumatoid arthritis(RA) complicated by peptic ulcer.METHODS:This prospective randomized controlled study included 180 eligible inpatients and outpatients randomly assigned to an ARD treatment(n = 60),ginger-partitioned stimulation(n =60),or combination treatment(n = 60).Patients assigned to the ARD group were given oral celecoxib,methotrexate,and esomeprazole.Patients assigned to theginger-partitioned stimulation group were given ginger-partitioned acupoint stimulation at Zusanli(ST 36) in addition to the ARDs.Patients in the combination treatment group were given oral Sanhuangwuji powder,ginger-partitioned acupoint stimulation at Zusanli(ST 36),and ARDs.All patients were followed up for 2 months to evaluate clinical effects and safety.The study was registered in the World Health Organization database at the General Hospital of Chengdu Military Area Command Chinese People's Liberation Army(ChiCTR-TCC12002824).RESULTS:The combination treatment group had significantly greater improvements in RA symptoms,laboratory outcomes,and gastrointestinal symptom scores,compared with the other groups(P < 0.05).The peptic ulcer healing rate in the combination treatment group was significantly greater than that in the ARD treatment group(x^2 = 16.875,P < 0.05) and the ginger-partitioned stimulation group(x^2 = 6.171,P<0.05).CONCLUSION:Combination treatment with ginger-partitioned acupoint stimulation at Zusanli(ST36),oral Sanhuangwuji powder,and ARDs had a better clinical effect for RA with complicated peptic ulcer,compared with ARD treatmentalone or in combination with ginger-partitioned acupoint stimulation.
