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纯培养条件下不同氧化铁的微生物还原能力

微生物学报 2001年第6期41卷 745-749页

作者：曲东 sylvia Schnell 西北农林科技大学资源环境学院杨凌712100 Max-Planck-Institute for terrestrialMicrobiology

The microbial reduction of ferrihydrite,lepidocrocite,hematite,goethite and aluminum-substituted iron oxides were examined by iron-reducer GS-15 under anaerobic pure culture *** results indicated that the ferrihydrite and lepidocrocite can be rapidly reduced by iron-reducer,and the percentage of microbial reduction are respectively 95.4% and 95.8% after 4 days incubation at 25℃.The other iron oxides like hematite,Al-hematite,goethite and Al-goethite are very difficult to reduce during short-term *** amounts of Fe(Ⅲ)-reducing,Fe(Ⅱ)-producing and Fe-reducing calculated by acetate consumption are identical under the conditions of lower concentration iron oxides addition.

关键词：氧化铁铁还原菌纯培养微生物还原能力

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City of reminiscence

China Today 2003年第7期52卷 38-41页

作者： sylvia

TIAnJIn has a subtle charm that is perhaps overshadowed by the nearby capital, Beijing, just 120 km away.

关键词：中国天津 “怀旧城市” 建筑艺术民俗风情旅游业麻花

Breastfeeding and genetic factors in the etiology of inflammatory bowel disease in children

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World Journal of Gastroenterology 2009年第3期15卷 270-279页

作者： Theresa A Mikhailov sylvia E Furner Department of Pediatrics Division of Critical CareMedical College of Wisconsin9000 W.Wisconsin AvenueMS# 681MilwaukeeWI 53226United States School of Public Health Division of Epidemiology and BiostatisticsUniversity of Illinois Chicago 1603 W.Taylor St.M/C 923ChicagoIL 60612United States

Inflammatory bowel disease is a chronic,debilitating disorder of the gastrointestinal *** etiology of inflammatory bowel disease has not been elucidated,but is thought to be multifactorial with both environmental and genetic influences.A large body of research has been conducted to elucidate the etiology of inflammatory bowel *** article reviews this literature,emphasizing the studies of breastfeeding and the studies of genetic factors,particularly nOD2 polymorphisms.

关键词： Inflammatory bowel disease Crohn'sdisease Ulcerative colitis Etiology risk factors Protective factors nOD2/CArD15 Single nucleotidepolymorphisms

Mental health-related healthcare service utilisation and psychotropic drug dispensation trends in British Columbia during COVID-19 pandemic:a population-based study

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General Psychiatry 2023年第1期36卷 50-57页

作者： Moe Zandy sylvia El Kurdi Hasina Samji Geoff McKee reka Gustafson Kate Smolina BC Centre for Disease Control VancouverBritish ColumbiaCanada Faculty of Health Sciences Simon Fraser UniversityBurnabyBritish ColumbiaCanada School of Population and Public Health The University of British ColumbiaVancouverBritish ColumbiaCanada BC Children's Hospital research Institute VancouverBritish ColumbiaCanada

Background The impact of the COVID-19 pandemic on the population’s mental health is vital for informing public health policy and ***,information on mental health-related healthcare service utilisation trends beyond the first year of the pandemic is *** We examined mental health-related healthcare service utilisation patterns and psychotropic drug dispensations in British Columbia,Canada,during the COVID-19 pandemic compared with the prepandemic *** We conducted a retrospective population-based secondary analysis using administrative health data to capture outpatient physician visits,emergency department visits,hospital admissions and psychotropic drug *** examined time trends of mental health-related healthcare service utilisation and psychotropic drug dispensations between January to December 2019(prepandemic period)and January 2020 to December 2021(pandemic period).In addition,we calculated age-standardised rates and rate ratios to compare mental health-related healthcare service utilisation before and during the first two years of the COVID-19 pandemic,stratified by year,sex,age and *** By late 2020,except for emergency department visits,utilisation of healthcare services recovered to prepandemic *** 2019 and 2021,the monthly average rate for overall mental health-related outpatient physician visits,emergency department visits and psychotropic drug dispensations increased significantly by 24%,5%and 8%,*** and statistically significant increases were observed among 10–14 year-olds(44%in outpatient physician visits,30%in emergency department visits,55%in hospital admissions and 35%in psychotropic drug dispensations)and 15–19 year-olds(45%in outpatient physician visits,14%in emergency department visits,18%in hospital admissions and 34%in psychotropic drug dispensations).Additionally,these increases were more prominent among females than males,with some variation for specif

关键词： service consequences Canada

Modified technique of Wolbachia removal from Malaysian Aedes albopictus

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Asian Pacific Journal of Tropical Biomedicine 2014年第7期4卷 557-560页

作者： sylvia Joanne Indra Vythilingam nava Yugavathy Jonathan Inbaraj Doss Department of Parasitology Faculty of Medicine.University of Malaya Julius Centre University of Malaya Department of Social and Preventive Medicine Faculty of Medicine University of Malaya

Objective:To develop an artificial and modified Wolbaehia removal technique using tetracycline from naturally Wolbachia infected Aedes albopictus(***)so as to be able to produce generations of Wolbaehia free ***:In this study,seven different tetracycline treatment methods were conducted to obtain the best removal *** methods focused on larvae tetracycline treatment,one method on both larvae and adult tetracycline treatment and the last two methods on adult mosquito sucrose ***:All larval tetracycline treatments resulted in either high larvae mortality,sterile F_o adult mosquitoes or unsuccessful Wolbaehia *** of both larvae and adults resulted in reduced larvae mortality,successful Wolbachia removal but slow mosquito *** for the adult treatment,1.0 mg/mL as previously published was not aisle to completely remove Wolbaehia in F,generation whereas 1.25 mg/mL successfully removed Wolbachia from F,and F,mosquitoes in 2 ***:This method is different from the previously published methods as it provides an improved Watbachia removal technique from *** with high egg *** larvae mortality,increased fecundity and better Wolbaehia removal rate.

关键词： Wolbachia tetracycline Aedes albopictus

The Gillenia trifoliata genome reveals dynamics correlated with growth and reproduction in rosaceae

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Horticulture research 2021年第1期8卷 3144-3157页

作者： Hilary S.Ireland Chen Wu Cecilia H.Deng Elena Hilario Ali Saei sylvia Erasmuson ross n.Crowhurst Karine M.David robert J.Schaffer David Chagn The new Zealand Institute for Plant and Food research Ltd Private Bag 92196Auckland Mail CentreAuckland 1142New Zealand School of Biological Sciences The University of AucklandPrivate Bag 92019Auckland Mail CentreAuckland 1142New Zealand Genomics Aotearoa %Department of BiochemistryUniversity of OtagoPO Box 56Dunedin 9054New Zealand The new Zealand Institute for Plant and Food research Ltd Private Bag 11600Palmerston North 4442New Zealand The new Zealand Institute for Plant and Food research Ltd Private Bag 4704Christchurch Mail CentreChristchurch 8140New Zealand The new Zealand Institute for Plant and Food research Ltd 55 Old Mill RoadRD 3Motueka 7198New Zealand

The rosaceae family has striking phenotypic diversity and high syntenic *** trifoliata is sister species to the Maleae tribe of apple and~1000 other *** has many putative ancestral features,such as herb/sub-shrub habit,dry fruit-bearing and nine base *** coalescence of ancestral characters in a phylogenetically important species,positions Gillenia as a‘rosetta stone'for translational science within *** present genomic and phenological resources to facilitate the use of Gillenia for this *** Gillenia genome is the fi rst fully annotated chromosome-level assembly with an ancestral genome complement(x=9),and with it we developed an improved model of the rosaceae ancestral *** and nAC gene family analyses revealed genome dynamics correlated with growth and reproduction and we demonstrate how Gillenia can be a negative control for studying fl eshy fruit development in rosaceae.

关键词： rosaceae dynamics striking

nanocomposites for electronic applications that can be embedded for textiles and wearables

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Science China(Technological Sciences) 2019年第6期62卷 895-902页

作者： SErrAnO-GArCIA William JAYATHILAKA Wanasinghe Arachchige Dumith Madushanka CHInnAPPAn Amutha TrAn Thang Quyet BASKAr Chinnappan THOMAS sylvia Wilson rAMAKrISHnA Seeram Department of Electrical Engineering University of South Florida Tampa 33620 USA Department of Mechanical Engineering National University of Singapore Singapore 119077 Singapore THDC Institute of Hydropower Engineering and Technology Tehri Uttarakhand Technical University Dehradun 249001 India

In the present review, we have selected advances in electrospinning nanofibers that we envision to be embedded in textiles and wearables. These nanofibers have been proven to be excellent options for applications such as power generation, sensing, and communication. Their similitude with already known woven meshes makes these fibers perfect for electronically active *** fibers offer well known characteristics such as mechanical flexibility, high surface area-to-volume ratio, light weight and can be tuned by carefully selecting the active materials in the precursor solution. Here we will discuss polymers with electroactive, piezoelectric, triboelectric and their composites that have been used in fiber structures by using the electrospinning technique.

关键词： nanofibers electrospinning electronic textiles electroactive materials

Epo/Epor signaling in osteoprogenitor cells is essential for bone homeostasis and Epo-induced bone loss

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Bone research 2021年第4期9卷 549-556页

作者： Martina rauner Marta Murray sylvia Thiele Deepika Watts Drorit neumann Yankel Gabet Lorenz C.Hofbauer Ben Wielockx Department of Medicine III&Center for Healthy Aging Technische Universitat DresdenDresdenGermany lnstitute for Clinical Chemistry and Laboratory Medicine Technische Universitat DresdenDresdenGermany Department of Cell and Developmental Biology Sackler Faculty of MedicineTel Aviv UniversityTel AvivIsrael Department of Anatomy&Anthropology Sackler Faculty of MedicineTel Aviv UniversityTel AvivIsrael

High erythropoietin(Epo)levels are detrimental to bone health in adult *** mice receiving high doses of Epo lose bone mass due to suppressed bone formation and increased bone *** humans,high serum Epo levels are linked to fractures in elderly *** earlier studies indicated that Epo modulates osteoblast activity;however,direct evidence that Epo acts via its receptor(Epor)on osteoblasts in vivo is still ***,we created mice lacking Epor in osteoprogenitor cells to specifically address this *** of Epor in osteoprogenitors(Epor:Osx-cre,cKO)starting at 5 weeks of age did not alter red blood cell parameters but increased vertebral bone volume by 25%in 12-week-old female *** was associated with low bone ***(osteoblast number,bone formation rate)and serum(P1nP,osteocalcin)bone formation parameters were all reduced,as were the number of osteoclasts and TrAP serum *** of osteoblast precursors isolated from cKO versus control mice resulted in lower expression of osteoblast marker genes including runx2,Alp,and Col1a1 on day 21,whereas the mineralization capacity was ***,the rAnKL70PG ratio,which determines the osteoclast-supporting potential of osteoblasts,was substantially decreased by 50%.Similarly,coculturing cKO osteoblasts with control or cKO osteoclast precursors produced significantly fewer osteoclasts than coculture with control ***,exposing female mice to Epo pumps(10 U-d_1)for 4 weeks resulted in trabecular bone loss(-25%)and increased osteoclast numbers(1.7-fold)in control mice only,not in cKO *** data show that Epor in osteoprogenitors is essential in regulating osteoblast function and osteoblast-mediated osteoclastogenesis via the rAnKI70PG ***,osteogenic Epo/Epor signaling controls bone mass maintenance and contributes to Epo-induced bone loss.

关键词： progenitor homeostasis doses

Walking for health during pregnancy:A literature review and considerations for future research

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Journal of Sport and Health Science 2019年第5期8卷 401-411页

作者： Christopher P.Connolly Scott A.Conger Alexander H.K.Montoye Mallory r.Marshall rebecca A.Schlaff sylvia E.Badon James M.Pivarnik Kinesiology Program Washington State UniversityPullmanWA 99164-1410USA Department of Kinesiology Boise State UniversityBoiseID 83725USA Department of Integrative Physiology and Health Science Alma CollegeAlmaMI 48801USA Department of Kinesiology Samford UniversityBirminghamAL 35229USA Department of Kinesiology Saginaw Valley State UniversityUniversity CenterMI 48710USA Division of research Kaiser Permanente Northern CaliforniaOaklandCA 94612USA Department of Kinesiology Michigan State UniversityEast LansingMI 48824-1034USA

Walking is the most commonly chosen type of physical activity(PA)during pregnancy and provides several health benefits to both mother and *** initiatives have promoted the importance of walking in general,but little emphasis is directed toward pregnant women,the majority of whom are insufficiently *** women face a variety of dynamic barriers to a physically active lifestyle,some of which are more commonly experienced during specific times throughout the pregnancy *** is unique in that it appears resistant to a number of these barriers that limit other types of PA participation,and it can be meaningfully integrated into some transportation and occupational activities when leisure-time options are *** intervention work suggests that walking programs can be effectively adopted into a typical pregnancy ***,a great deal of work remains to administer successful pregnancy walking interventions,including developing and using validated methods of PA and walking *** narrative review discusses the unique advantages of walking during pregnancy,provides recommendations for future intervention work,and outlines the need for pregnancy-focused community walking *** search procedures were followed to determine sources from the literature specific to walking during pregnancy for use in each section of this review.

关键词： Ambulatory activity Exercise behavior Maternal-fetal health Pregnant women