Globularαphases can significantly improve the ductility of titanium alloys.Cyclic heat treatment(CHT)has been proved to be an effective way to induce the formation of globularαphases inα+βtitanium alloy Ti-6Al-4V ...Globularαphases can significantly improve the ductility of titanium alloys.Cyclic heat treatment(CHT)has been proved to be an effective way to induce the formation of globularαphases inα+βtitanium alloy Ti-6Al-4V fabricated by laser aided additive manufacturing(LAAM).However,there is no prior research reporting methods for obtaining globularαphases in LAAM-built near-αtitanium alloys.This work investigated the cyclic heat treatment(CHT)procedures suitable for the LAAM-built near-αtitanium alloy Ti-6Al-2Sn-4Zr-2Mo(Ti6242)to attain the globularαphases.The results show that 980℃ is the most suitable upper temperature limit for CHT.However,it is difficult to achieve a high volume fraction of the globularαphases in the LAAM-built Ti6242 alloys through CHT,which is ascribed to the low composition gradient caused by moreα-stabilizing elements and fewerβ-stabilizing elements.The as-built sample demonstrated elongation of 6.3%,which is lower than the AMS 4919J standard(elongation≥10%).After 980℃ CHT and 980℃ CHT with solution heat-treatment,the formation of the globularαphases significantly increased the elongation to 13.5%and 12.9%,respectively.Although the mechanical strength is reduced after heat-treatment,the room-temperature tensile properties still exceed the AMS 4919J standard.Fractography examination showed that the as-built sample exhibited a mixed brittle and ductile fracture behavior,while the 980℃ CHT and 980℃ CHT with solution heat-treated samples displayed ductile fracture.展开更多
<strong>Objective: </strong>The purpose is to formulate treatment strategies of batches of the wounded and partial first-aid procedures, and further improve the emergency rescue capability of hospitals. &l...<strong>Objective: </strong>The purpose is to formulate treatment strategies of batches of the wounded and partial first-aid procedures, and further improve the emergency rescue capability of hospitals. <strong>Methods: </strong>This study analyzed the emergency treatment case that we participated in. In this case, we used various means to start the emergency plan, run the emergency procedures, optimize diagnosis, treatment, and rescue procedures, mobilize medical rescue resources, provide a reference for emergency command decisions, formulate a set of coping strategies of tertiary general hospitals on public emergencies. <strong>Results:</strong> Through the scientific and effective management of our hospital, 20 wounded have been discharged from the hospital and achieved the ideal effect of zero deaths in the hospital. <strong>Conclusions:</strong> The new mode of first-aid and health emergency management on the scene of modern disaster needs to find ways to minimize the loss of life and property brought by public emergencies, integrate the various sections of modern disaster medicine, integrate a large number of international and domestic basic and clinical research achievements of disaster first-aid, and upgrade to information, digital system.展开更多
Three data envelopment analysis (DEA) models were used to analyse the relative efficiencies of four AIDS treatments in AIDS Clinical Trial Group (ACTG) Study 193A(1 309 patients in total, classified into 4 age groups)...Three data envelopment analysis (DEA) models were used to analyse the relative efficiencies of four AIDS treatments in AIDS Clinical Trial Group (ACTG) Study 193A(1 309 patients in total, classified into 4 age groups). Results from the output-oriented BCC model show that Treatment 4 ( 600 mg of zidovudine plus 400 mg of didanosine plus 400 mg of nevirapine) is particularly efficient for age group 14—25, but not efficient for the older age groups; Treatment 1 (600 mg of zidovudine alternating monthly with 400 mg of didanosine)and Treatment 2 (600 mg of zidovudine plus 2.25 mg of zalcitabine) are efficient for the age groups 35—45 and 45— ; age group 25—35 does not have a particularly efficient treatment, but Treatments 1 and 2 are relatively good. The cost efficiency BCC model, which takes the treatment cost into account, gives similar results as the output-oriented model. Results from the indirect output-oriented BCC model, which allows the replacement among medicines, show that the efficiency of Treatment 2 has greatly decreased compared with that of the output-oriented model, and a set of optimal medicine amounts for different age groups is obtained.展开更多
AM50-4%(Zn,Y)alloy with a Zn/Y mole ratio of6:1was subjected to thermal analysis,and the results were used for designing a two-step progressive solution treatment process.The effects of solution and aging treatments o...AM50-4%(Zn,Y)alloy with a Zn/Y mole ratio of6:1was subjected to thermal analysis,and the results were used for designing a two-step progressive solution treatment process.The effects of solution and aging treatments on the microstructure and mechanical properties of the AM50-4%(Zn,Y)alloy were investigated using OM,XRD,SEM/EDS,TEM,tensile test and hardness test.The experimental results demonstrated that the two-step progressive solution treatment could make theΦandβphases sufficiently dissolve into the matrix which possessed higher supersaturated degree of the dissolved solute compared with the one-step solution treatment.This resulted in a certain enhancement of the precipitation strengthening effect during the subsequent aging process.The precipitation of theФphase had a greater impact on the comprehensive mechanical properties of the alloy thanβphase precipitation when the aging treatment was performed at180℃.The peak aging strength of the AM50-4%(Zn,Y)alloy which was subjected to the two-step progressive solution treatment process(345℃for16h and375℃for6h)was obtained after the aging treatment at180℃for12h.展开更多
Objective:To review the research progress of using Chinese medicine ginseng to prevent and treat AIDS in China.Methods:Based on the method of TCM syndrome differentiation,Chinese medical researchers divided AIDS into ...Objective:To review the research progress of using Chinese medicine ginseng to prevent and treat AIDS in China.Methods:Based on the method of TCM syndrome differentiation,Chinese medical researchers divided AIDS into four types:heat toxin stagnation type,Qi and blood deficiency type,stasis and internal resistance type,and Qi and Yin injury type.Results:The therapeutic effects of the compound preparation of traditional Chinese medicine were significant,such as Aikang capsule,Tangcao tablet,Wuweilingqi capsule,Aining granule,compound Sanhuang powder,etc.Astragalus,licorice,honeysuckle,Scutellaria,bupleurum,Salvia miltiorrhiza,Viola,Hedyotis diffusa and other 8 kinds of traditional Chinese medicine have been proved to have anti HIV effect.Conclusion:Among the 27 kinds of Chinese medicine ginseng,Andrographis paniculata,Viola,Arnebia,Arctium lappa,Sophora flavescens,honeysuckle,Guanzhong,Prunella,Coptis,Wolfberry,Wedelia and epimedium have been proved to have the effect of preventing HIV replication.展开更多
Increased availability of antiretroviral treatment for HIV makes the goal of universal access attainable. However, in most resource constrained settings where existing health systems are?largely dysfunctional, major b...Increased availability of antiretroviral treatment for HIV makes the goal of universal access attainable. However, in most resource constrained settings where existing health systems are?largely dysfunctional, major barriers to achieving this goal remain. While treatments with antiretroviral drugs (ART) are the focal point of HIV management, it is increasingly recognized that ART alone will not be sufficient to adequately deal with the lifelong consequences of the disease. In addition, the current global economic downturn will continue to impact on funding for HIV care and support, making the search for sustainable solutions more urgent. This article reviews the current evidence base on the impact of community-based programs on HIV/AIDS treatment and general health outcomes, as well as their contribution to ensuring sustained care for HIV-positive people. Our findings suggest that these programs overall have a positive impact on various dimensions of HIV treatment and care, and make a significant contribution to health and HIV outcomes. The authors argue that better use of community platforms for HIV treatment and care programs could be critical for attaining desired goals and should be prioritized at all levels of program design, implementation, and monitoring and evaluation.展开更多
Objectives: This paper seeks to examine the history of HIV/AIDS in Nigeria while presenting a clear picture of some of the issues that exist in service delivery. Lastly, this paper explores how an evidence-based manag...Objectives: This paper seeks to examine the history of HIV/AIDS in Nigeria while presenting a clear picture of some of the issues that exist in service delivery. Lastly, this paper explores how an evidence-based management approach offers an effective set of tools to HIV/AIDS organizations. Methods: Content analysis and a qualitative desk review of the literature. Results: Findings from this paper reveal that through the use of evidence-based management, preconceived notions can be challenged so as to yield a diversity of thought and a more people-centered approach to public health delivery. This paper also shows that in the Nigerian setting, an evidence-based management framework can be a transformative tool in ensuring that key populations can receive critical care and treatment in the long run despite the uncertainty that might exist when it comes to funding and resources. Conclusions: Evidence-based management is a rigorous framework that can be used for understanding how a multitude of factors can position an organization to achieve its theory of change, which in turn can lead to sustainable impact in the long run. Incorporating the use of evidence in everyday organizational behavior involves not only looking at the manner in which data is aggregated, but also how it is disseminated. In order to ensure that the evidence is not manipulated, nonprofit organizations are often viewed as being best suited for collecting evidence since they are not heavily plagued by systemic corruption and political tides, compared to their government counterparts.展开更多
Objective:To investigate the levels of zinc-α-2-glycoprotein(ZAG) among Omani AIDS patients receiving combined antiretroviral therapy(cART).Methods:A total of 80 Omani AIDS patients(45 males and 33 females),average a...Objective:To investigate the levels of zinc-α-2-glycoprotein(ZAG) among Omani AIDS patients receiving combined antiretroviral therapy(cART).Methods:A total of 80 Omani AIDS patients(45 males and 33 females),average age of 36 vears.who were receiving cART at the Saltan Qaboos University Hospital(SQUH).Muscat,Oman,were tested for the levels of ZAG.In addition,SO healthy blood donors(46 males and 34 females),average age of 26 years,attending the SOUH Blood Bank,were tested in parallel as a control group.Measurement of the ZAG levels was performed using a competitive enzyme—linked immunosorbent assay and in accordance with the manufacturer's instructions.Results:The ZAG levels were found to he significantly higher among AIDS patients compared to the healthy individuals(P=0.033).A total of 56(70%) of the AIDS patients were found to have higher levels of ZAG and 16(20%) AIDS patients were found to have high ZAG levels,which are significantly(P>0.031) associated with weight loss.Conclusions:ZAG levels are high among Omani AIDS patients on cART and this necessitales the measurement of ZAG on routine basis,as it is associated with weight loss.展开更多
The melt treatment of A1-7%Si alloy by the flux injection method in a resistance furnance was investigated. The experimental results show that the flux injection method can realize the melt treatment of A1-7%Si alloy....The melt treatment of A1-7%Si alloy by the flux injection method in a resistance furnance was investigated. The experimental results show that the flux injection method can realize the melt treatment of A1-7%Si alloy. In purification, the flux injection method is superior to the standard lance degassing method. For the injection flux, the purifier Na2SiF6 is more powerful than Na3A1F6, the modifiers SrCl2, and R.E. Cl3 are quick acting, like NaF, but less powerful, the grain refiner containing K2TiF6 and KBF4 with Ti/B=1 is more potent than that with Ti/B=5. The analytical results indicate that the mass-transfer rate for the flux injection method is much higher than that for the conventional method .展开更多
The article discusses two forms of resonance in medicine in the treatment of AIDS. The first form is the destruction resonance. This is well known and we have used it to kill tumors or infectious diseases. The second ...The article discusses two forms of resonance in medicine in the treatment of AIDS. The first form is the destruction resonance. This is well known and we have used it to kill tumors or infectious diseases. The second form of resonance is the resonance of creation, which leads to the restoration of degenerated or destroyed organs. The article talks about the so-called “nosodes”—wave copies of the disease and “organopreparations”—wave copies of normally functioning organs. The author uses the method of high potency bioresonance therapy since the use of low potency nosode therapy is completely ineffective in the treatment of AIDS. Thus, the principle of high potency destruction resonance has proven to be extremely effective in the treatment of AIDS. The principle of the resonance of creation proved to be effective in restoring destroyed tissue.展开更多
基金supported by Agency for Science,Technology and Research(A∗Star),the Republic of Singapore,under the IAF-PP program‘Integrated large format hybrid manufacturing using wire-fed and powder-blown technology for LAAM process’(Grant No:A1893a0031).
文摘Globularαphases can significantly improve the ductility of titanium alloys.Cyclic heat treatment(CHT)has been proved to be an effective way to induce the formation of globularαphases inα+βtitanium alloy Ti-6Al-4V fabricated by laser aided additive manufacturing(LAAM).However,there is no prior research reporting methods for obtaining globularαphases in LAAM-built near-αtitanium alloys.This work investigated the cyclic heat treatment(CHT)procedures suitable for the LAAM-built near-αtitanium alloy Ti-6Al-2Sn-4Zr-2Mo(Ti6242)to attain the globularαphases.The results show that 980℃ is the most suitable upper temperature limit for CHT.However,it is difficult to achieve a high volume fraction of the globularαphases in the LAAM-built Ti6242 alloys through CHT,which is ascribed to the low composition gradient caused by moreα-stabilizing elements and fewerβ-stabilizing elements.The as-built sample demonstrated elongation of 6.3%,which is lower than the AMS 4919J standard(elongation≥10%).After 980℃ CHT and 980℃ CHT with solution heat-treatment,the formation of the globularαphases significantly increased the elongation to 13.5%and 12.9%,respectively.Although the mechanical strength is reduced after heat-treatment,the room-temperature tensile properties still exceed the AMS 4919J standard.Fractography examination showed that the as-built sample exhibited a mixed brittle and ductile fracture behavior,while the 980℃ CHT and 980℃ CHT with solution heat-treated samples displayed ductile fracture.
文摘<strong>Objective: </strong>The purpose is to formulate treatment strategies of batches of the wounded and partial first-aid procedures, and further improve the emergency rescue capability of hospitals. <strong>Methods: </strong>This study analyzed the emergency treatment case that we participated in. In this case, we used various means to start the emergency plan, run the emergency procedures, optimize diagnosis, treatment, and rescue procedures, mobilize medical rescue resources, provide a reference for emergency command decisions, formulate a set of coping strategies of tertiary general hospitals on public emergencies. <strong>Results:</strong> Through the scientific and effective management of our hospital, 20 wounded have been discharged from the hospital and achieved the ideal effect of zero deaths in the hospital. <strong>Conclusions:</strong> The new mode of first-aid and health emergency management on the scene of modern disaster needs to find ways to minimize the loss of life and property brought by public emergencies, integrate the various sections of modern disaster medicine, integrate a large number of international and domestic basic and clinical research achievements of disaster first-aid, and upgrade to information, digital system.
基金National Natural Science Foundation of China (No 10571134)
文摘Three data envelopment analysis (DEA) models were used to analyse the relative efficiencies of four AIDS treatments in AIDS Clinical Trial Group (ACTG) Study 193A(1 309 patients in total, classified into 4 age groups). Results from the output-oriented BCC model show that Treatment 4 ( 600 mg of zidovudine plus 400 mg of didanosine plus 400 mg of nevirapine) is particularly efficient for age group 14—25, but not efficient for the older age groups; Treatment 1 (600 mg of zidovudine alternating monthly with 400 mg of didanosine)and Treatment 2 (600 mg of zidovudine plus 2.25 mg of zalcitabine) are efficient for the age groups 35—45 and 45— ; age group 25—35 does not have a particularly efficient treatment, but Treatments 1 and 2 are relatively good. The cost efficiency BCC model, which takes the treatment cost into account, gives similar results as the output-oriented model. Results from the indirect output-oriented BCC model, which allows the replacement among medicines, show that the efficiency of Treatment 2 has greatly decreased compared with that of the output-oriented model, and a set of optimal medicine amounts for different age groups is obtained.
基金Project (201602548) supported by Liaoning Province Natural Science Foundation,ChinaProject (1711800) supported by Shenyang Science and Technology Plan,China+1 种基金Project (LQGD2017032) supported by Youth Project of Liaoning Education Department,ChinaProjects (51504153,51571145) supported by the National Natural Science Foundation of China
文摘AM50-4%(Zn,Y)alloy with a Zn/Y mole ratio of6:1was subjected to thermal analysis,and the results were used for designing a two-step progressive solution treatment process.The effects of solution and aging treatments on the microstructure and mechanical properties of the AM50-4%(Zn,Y)alloy were investigated using OM,XRD,SEM/EDS,TEM,tensile test and hardness test.The experimental results demonstrated that the two-step progressive solution treatment could make theΦandβphases sufficiently dissolve into the matrix which possessed higher supersaturated degree of the dissolved solute compared with the one-step solution treatment.This resulted in a certain enhancement of the precipitation strengthening effect during the subsequent aging process.The precipitation of theФphase had a greater impact on the comprehensive mechanical properties of the alloy thanβphase precipitation when the aging treatment was performed at180℃.The peak aging strength of the AM50-4%(Zn,Y)alloy which was subjected to the two-step progressive solution treatment process(345℃for16h and375℃for6h)was obtained after the aging treatment at180℃for12h.
基金Chongqing Science and Technology Project of Science and health joint traditional Chinese medicine in 2017(No.ZY201703020)Yanghe decoction combined with minimally invasive percutaneous Catheter Drainage and local chemotherapy for the treatment of abscess of Crista tuberculosis.
文摘Objective:To review the research progress of using Chinese medicine ginseng to prevent and treat AIDS in China.Methods:Based on the method of TCM syndrome differentiation,Chinese medical researchers divided AIDS into four types:heat toxin stagnation type,Qi and blood deficiency type,stasis and internal resistance type,and Qi and Yin injury type.Results:The therapeutic effects of the compound preparation of traditional Chinese medicine were significant,such as Aikang capsule,Tangcao tablet,Wuweilingqi capsule,Aining granule,compound Sanhuang powder,etc.Astragalus,licorice,honeysuckle,Scutellaria,bupleurum,Salvia miltiorrhiza,Viola,Hedyotis diffusa and other 8 kinds of traditional Chinese medicine have been proved to have anti HIV effect.Conclusion:Among the 27 kinds of Chinese medicine ginseng,Andrographis paniculata,Viola,Arnebia,Arctium lappa,Sophora flavescens,honeysuckle,Guanzhong,Prunella,Coptis,Wolfberry,Wedelia and epimedium have been proved to have the effect of preventing HIV replication.
文摘Increased availability of antiretroviral treatment for HIV makes the goal of universal access attainable. However, in most resource constrained settings where existing health systems are?largely dysfunctional, major barriers to achieving this goal remain. While treatments with antiretroviral drugs (ART) are the focal point of HIV management, it is increasingly recognized that ART alone will not be sufficient to adequately deal with the lifelong consequences of the disease. In addition, the current global economic downturn will continue to impact on funding for HIV care and support, making the search for sustainable solutions more urgent. This article reviews the current evidence base on the impact of community-based programs on HIV/AIDS treatment and general health outcomes, as well as their contribution to ensuring sustained care for HIV-positive people. Our findings suggest that these programs overall have a positive impact on various dimensions of HIV treatment and care, and make a significant contribution to health and HIV outcomes. The authors argue that better use of community platforms for HIV treatment and care programs could be critical for attaining desired goals and should be prioritized at all levels of program design, implementation, and monitoring and evaluation.
文摘Objectives: This paper seeks to examine the history of HIV/AIDS in Nigeria while presenting a clear picture of some of the issues that exist in service delivery. Lastly, this paper explores how an evidence-based management approach offers an effective set of tools to HIV/AIDS organizations. Methods: Content analysis and a qualitative desk review of the literature. Results: Findings from this paper reveal that through the use of evidence-based management, preconceived notions can be challenged so as to yield a diversity of thought and a more people-centered approach to public health delivery. This paper also shows that in the Nigerian setting, an evidence-based management framework can be a transformative tool in ensuring that key populations can receive critical care and treatment in the long run despite the uncertainty that might exist when it comes to funding and resources. Conclusions: Evidence-based management is a rigorous framework that can be used for understanding how a multitude of factors can position an organization to achieve its theory of change, which in turn can lead to sustainable impact in the long run. Incorporating the use of evidence in everyday organizational behavior involves not only looking at the manner in which data is aggregated, but also how it is disseminated. In order to ensure that the evidence is not manipulated, nonprofit organizations are often viewed as being best suited for collecting evidence since they are not heavily plagued by systemic corruption and political tides, compared to their government counterparts.
基金Supported by the Research Council of the Sultanate of Oman(RC/MED/MICR/11/01)the College of Medicine and Health Sciences,Sultan Qaboos University(Internal-Grant/2013).Oman
文摘Objective:To investigate the levels of zinc-α-2-glycoprotein(ZAG) among Omani AIDS patients receiving combined antiretroviral therapy(cART).Methods:A total of 80 Omani AIDS patients(45 males and 33 females),average age of 36 vears.who were receiving cART at the Saltan Qaboos University Hospital(SQUH).Muscat,Oman,were tested for the levels of ZAG.In addition,SO healthy blood donors(46 males and 34 females),average age of 26 years,attending the SOUH Blood Bank,were tested in parallel as a control group.Measurement of the ZAG levels was performed using a competitive enzyme—linked immunosorbent assay and in accordance with the manufacturer's instructions.Results:The ZAG levels were found to he significantly higher among AIDS patients compared to the healthy individuals(P=0.033).A total of 56(70%) of the AIDS patients were found to have higher levels of ZAG and 16(20%) AIDS patients were found to have high ZAG levels,which are significantly(P>0.031) associated with weight loss.Conclusions:ZAG levels are high among Omani AIDS patients on cART and this necessitales the measurement of ZAG on routine basis,as it is associated with weight loss.
文摘The melt treatment of A1-7%Si alloy by the flux injection method in a resistance furnance was investigated. The experimental results show that the flux injection method can realize the melt treatment of A1-7%Si alloy. In purification, the flux injection method is superior to the standard lance degassing method. For the injection flux, the purifier Na2SiF6 is more powerful than Na3A1F6, the modifiers SrCl2, and R.E. Cl3 are quick acting, like NaF, but less powerful, the grain refiner containing K2TiF6 and KBF4 with Ti/B=1 is more potent than that with Ti/B=5. The analytical results indicate that the mass-transfer rate for the flux injection method is much higher than that for the conventional method .
文摘The article discusses two forms of resonance in medicine in the treatment of AIDS. The first form is the destruction resonance. This is well known and we have used it to kill tumors or infectious diseases. The second form of resonance is the resonance of creation, which leads to the restoration of degenerated or destroyed organs. The article talks about the so-called “nosodes”—wave copies of the disease and “organopreparations”—wave copies of normally functioning organs. The author uses the method of high potency bioresonance therapy since the use of low potency nosode therapy is completely ineffective in the treatment of AIDS. Thus, the principle of high potency destruction resonance has proven to be extremely effective in the treatment of AIDS. The principle of the resonance of creation proved to be effective in restoring destroyed tissue.
