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Ecological and behavioural risk factors of scrub typhus in central Vietnam:a case-control study

Infectious Diseases of Poverty 2021年第4期10卷 97-97页

作者： hanh Thi Duc tran Jan Hattendorf Hung Manh Do Thanh Tien Hoang Hang Thi Hai Hoang Hoa Ngoc Lam Mai Kim Huynh Lan Thi Hoang Vu Jakob Zinsstag Daniel Henry Paris Esther Schelling Department of Epidemiology and Public Health Swiss Tropical and Public Health InstituteBaselSwitzerland 不详

Background The risk factors for scrub typhus in Vietnam remain *** typhus caused by Orientia tsutsugamushi often presents as an undifferentiated febrile illness and remains under appreciated due to the limited availability of diagnostic *** tropical rickettsial illness is increasingly recognized as an important cause of non-malaria acute undifferentiated fever in *** study aimed to investigate behavioural and ecological related risk factors of scrub typhus to prevent this potentially life-threatening disease in *** We conducted a clinical hospital-based active surveillance study,and a retrospective residence-enrolment date-age-matched case–control study in Khanh Hoa province,Vietnam,from August 2018 to March *** examinations,polymerase chain reaction and enzyme-linked immunosorbent assay IgM tests were applied to define cases and *** enrolled participants filled out a questionnaire including demographic socio-economic status,personal behaviors/protective equipment,habitat connections,land use,and possible exposure to the *** conditional logistic regression was used to define the scrub typhus associated risk *** We identified 44 confirmed cases and matched them with 152 *** cases and controls,the largest age group was the 41–50 years old and males accounted for 61.4%and 42.8%,*** were similarities in demographic characteristics between the two groups,with the exception of *** factors were significantly associated with acquisition of scrub typhus,including sitting/laying directly on household floor[adjusted OR(aOR)=4.9,95%CI:1.6–15.1,P=0.006],household with poor sanitation/conditions(aOR=7.9,95%CI:1.9–32.9,P=0.005),workplace environment with risk(aOR=3.0,95%CI:1.2–7.6,P=0.020),always observing mice around home(aOR=3.7,95%CI:1.4–9.9,P=0.008),and use of personal protective equipment in the field(aOR=0.4,95%CI:0.1–1.1,P=0.076).Conclusions Ecological

关键词： Ecological Environmental Behaviour Risk factor Scrub typhus Orientia tsutsugamushi Vietnam

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Infrared broadband emission of Bismuth-Thulium co-doped Lanthanum-Aluminum-Silica glasses

Infrared broadband emission of Bismuth-Thulium co-doped Lant...

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战略性新兴产业的培育和发展——首届云南省科协学术年会

作者： tran Minh Hau 陈明厚 School of Material Science and Engineering Kunming University of Science and Technology

The Bi-tm co-doped SiO-AlO-LaO(SAL) glasses,which exhibited a broadband near-infrared emission was investigated by the optical absorption and photoluminescence *** super broadband near-infrared emission from 1000 to 2100 nm,covering the whole O,E,S,C,and L bands,was observed in the Bi-tm co-doped samples,as a result of the overlap of the Bi-related emission band(centered at 1270 nm) and the emission from tm H→F transition(1440 nm) as well as tm F→H transition(1800 nm).Relative luminescence intensity at 1270,1440 and 1800 nm wavelength varies depending on the mixing ratio of Bi and tm,and the full width at half-maximum(FWHM) extending from 1000 to 1600 could be 400 *** results indicated that Bi-tm co-doped SiO-AlO-LaO glasses could provide potential applications in tunable lasers as well as the broadband optical amplifiers in WDM system.

关键词： Silica glass Energy transfer Bi-tm co-doped Luminescence Broadband

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Systematic evaluation of three porcine-derived collagen membranes for guided bone regeneration

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Biomaterials translational 2023年第1期4卷 41-50,I0004页

作者： Andrew Tai Euphemie Landao-Bassonga Ziming Chen Minh tran Brent Allan Rui Ruan Dax Calder Mithran Goonewardene Hien Ngo Ming Hao Zheng Centre for Orthopaedic Research Faculty of Health and Medical SciencesThe University of Western AustraliaNedlandsWestern AustraliaAustralia Perron Institute for Neurological and translational Science NedlandsWestern AustraliaAustralia UWA Dental School The University of Western AustraliaNedlandsWestern AustraliaAustralia Oral and Maxillofacial Department St John of God Subiaco HospitalSubiacoWestern AustraliaAustralia

Guided bone regeneration is one of the most common surgical treatment modalities performed when an additional alveolar bone is required to stabilize dental implants in partially and fully edentulous *** addition of a barrier membrane prevents non-osteogenic tissue invasion into the bone cavity,which is key to the success of guided bone *** membranes can be broadly classified as non-resorbable or *** contrast to non-resorbable membranes,resorbable barrier membranes do not require a second surgical procedure for membrane *** available resorbable barrier membranes are either synthetically manufactured or derived from xenogeneic *** collagen barrier membranes have become increasingly popular amongst clinicians,largely due to their superior handling qualities compared to other commercially available barrier membranes,there have been no studies to date that have compared commercially available porcine-derived collagen membranes with respect to surface topography,collagen fibril structure,physical barrier property,and immunogenic *** study evaluated three commercially available non-crosslinked porcine-derived collagen membranes(Striate+tm,Bio-Gide®and Creostm Xenoprotect).Scanning electron microscopy revealed similar collagen fibril distribution on both the rough and smooth sides of the membranes as well as the similar diameters of collagen ***,D-periodicity of the fibrillar collagen is significantly different among the membranes,with Striate+tm membrane having the closest D-periodicity to native collagen *** suggests that there is less deformation of collagen during manufacturing *** collagen membranes showed superior barrier property evidenced by blocking 0.2–16.4µm beads passing through the *** examine the immunogenic agents in these membranes,we examined the membranes for the presence of DNA and alpha-gal by *** alpha-gal or DNA was detect

关键词： barrier membrane collagen membrane dental implant guided bone regeneration immunogen

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