检索结果-南通市图书馆

Extensively drug-resistant Salmonella typhi causing rib osteomyelitis: A case report

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2021年第5期14卷 231-233页

作者： sara Iqbal Humza Thobani Saulat Fatimi Section of Cardiothoracic Surgery Department of SurgeryAga Khan University HospitalPakistan Medical College Aga Khan UniversityPakistan

Rationale:Salmonella(S.)typhi is a rare cause of osteomyelitis in immunocompetent *** drug resistance(XDR)may lead to more complicated cases of *** *** concern:A 55-year-old female presented with a persistent low-grade fever and a swelling on her lower left chest with a sinus discharging purulent fluid for the past 8 *** symptoms had been unresponsive to previous anti-microbial ***:Rib osteomyelitis caused by XDR ***:Surgical wound debridement,left 7th-9th rib resection and intravenous Ⅳ meropenem were ***:Fever resolved and left-sided swelling resected without ***:The prevalence of XDR *** is growing in South Asia and should be considered as the differential diagnosis of chronic osteomyelitis.

关键词： Salmonella typhi Extensive drug resistance Rib Osteomyelitis Immunocompetence

Programmed cell death in seeds of angiosperms

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2015年第12期57卷 996-1002页

作者： María Paula López-Fernández sara Maldonado Laboratory of Plant Development Department of Biodiversity and Experimental Biology Faculty of Exact and Natural Sciences University of Buenos Aires National Research Council of Argentine (CONICET)

During the diversification of angiosperms, seeds have evolved structuralp chemical, molecular and physiolog- ically developing changes that specially affect the nucellus and endosperm. All through seed evolution, programmed celldeath （PCD） has played a fundamental role. However, examples of PCD during seed development are limited. The present review examines PCD in integuments, nucellus, suspensor and endosperm in those representative examples of seeds studied to date.

关键词： Caspases endosperm KDEL-CysEP metacaspases nucellus nucleases programmed cell death perisperm ricinosomes

Economic and Qualitative Traits of Italian Alps Saffron

在线全文

学校读者我要写书评

暂无评论

Journal of Mountain Science 2015年第6期12卷 1542-1550页

作者： Alessandra MANZO sara PANSERI Danilo BERTONI Annamaria GIORGI Centre for Applied Studies in the Sustainable Management and Protection of the Mountain Environment-Ge.S.Di.Mont.-Università degli Studi di Milano Department of Veterinary Science and Public Health-Università degli Studi di Milano Department of Economics Management and Quantitative Methods-Università degli Studi di Milano Department of Agricultural and Environmental Sciences-Production Landscape Agroenergy-Università degli Studi di Milano

Saffron, obtained from the flower stigmas of Crocus sativus L., is one of the most expensive food spices. The introduction of saffron in alpine areas could help to broaden and diversify the activities of mountain multifunctional farms, with a positive impact on economy and land management. According to ISO 3632(2010/2011), saffron can be classified into three categories of quality(I, II, III) depending on the concentration of the three main metabolites responsible for its characteristic colour, flavor and aroma: Crocin, Picrocrocin and Safranal. This study represents the first investigation of the quality of saffron produced in the Italian Alps evaluated with spectrophotometry, HPLC, solid-phase microextraction(SPME), and gas chromatographic analysis combined with mass spectrometry(GC/MS). The experiments used Crocus sativus stigmas produced in 2012-2013 in different areas of the Central Italian Alps were located at an altitude between 720 and 1200 m a.s.l.. Results obtained were compared to commercial saffron. The analyses confirmed that all samples can be classified in the first quality category according to the ISO classification. This high quality is also confirmed by HPLC analysis. Moreover, the SPME-GC/MS analysis identified some differences in the aromatic profile of saffron samples, in particular regarding safranal concentration. A preliminary assessment of the economic viability of high quality saffron production for local markets was also performed. Our study provides valid information regarding the quality and economic sustainability of saffron production in the alpine area confirming this crop as a good candidate for a new source of income for multifunctional farms in mountain areas.

关键词： Crocus sativus L. Alps ISO 3632 UV– Vis spectrophotometry SPME-GC/MS HPLC

Cementite Characterization with Chromium and Vanadium Contents Using Indentation Technique

在线全文

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research International 2015年第4期22卷 366-370页

作者： John Jairo CORONADO sara Aida RODRGUEZ Research Group of Fatigue and Surfaces School of Mechanical EngineeringUniversity of Valle

Cast irons with some kinds of cementite with different chromium and vanadium contents were character- ized. Fracture toughness was determined by using an indentation technique, along with microhardness and elastic modulus. The results show that at the load of 1 N, microhardness of the cementite with 5.1% Cr is 10.53 GPa, the microhardness for cementite with 9.2% Cr increased to 11.25 GPa and for cementite with 4.5% V the microhard- ness is 9.18 GPa. The cementite with 9.2% Cr presented the highest elastic modulus of 230.4 GPa and the cement- ire with 4% V presented the lowest value of 201.32 GPa. Cementite with 5.1% Cr presented higher fracture tough- ness than cementite with 9.2% Cr; however, cementite with 4.5% V presented the highest fracture toughness of 2.74 MPa ·m1/2 and the lowest brittleness index of 3.35 μm-1/2.

关键词： cementite microhardness elastic modulus fracture toughness indentation technique

Phages and their potential to modulate the microbiome and immunity

在线全文

学校读者我要写书评

暂无评论

Cellular & Molecular Immunology 2021年第4期18卷 889-904页

作者： sara Federici Samuel P.Nobs Eran Elinav Immunology Department Weizmann Institute of ScienceRehovot 7610001Israel Cancer-Microbiome Division Deutsches Krebsforschungszentrum(DKFZ) Neuenheimer Feld 28069120 HeidelbergGermany

Bacteriophages(hence termed phages)are viruses that target bacteria and have long been considered as potential future treatments against antibiotic-resistant bacterial ***,the molecular nature of phage interactions with bacteria and the human host has remained elusive for decades,limiting their therapeutic *** many phages and their functional repertoires remain unknown,the advent of next-generation sequencing has increasingly enabled researchers to decode new lytic and lysogenic mechanisms by which they attack and destroy ***,the last decade has witnessed a renewed interest in the utilization of phages as therapeutic vectors and as a means of targeting pathogenic or commensal bacteria or inducing ***,the narrow host range,immense antibacterial repertoire,and ease of manipulating phages may potentially allow for their use as targeted modulators of pathogenic,commensal and pathobiont members of the microbiome,thereby impacting mammalian physiology and immunity along mucosal surfaces in health and in microbiomeassociated *** this review,we aim to highlight recent advances in phage biology and how a mechanistic understanding of phage-bacteria-host interactions may facilitate the development of novel phage-based *** provide an overview of the challenges of the therapeutic use of phages and how these could be addressed for future use of phages as specific modulators of the human microbiome in a variety of infectious and noncommunicable human diseases.

关键词： Microbiota Microbiome Phages

Controlling infestation of a chocolate factory by Plodia interpunctella by combining mating disruption and the parasitoid Habrobracon hebetor

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Insect Science 2017年第3期24卷 503-510页

作者： Pasquale Trematerra Annachiara Oliviero sara Savoldelli Matthias Scholler Department of Agricultural Environmental and Food Sciences University of Molise Via De Sanctis 86100 Campobasso Italy Department of Food Environmental and Nutritional Sciences Universit& degli Studi di Milano Via Celoria 2 20133 Milan Italy Faculty of Life Sciences Humboldt-Universit#t zu Berlin Lentzeallee 55/57 14195 Berlin Germany

A field experiment of 4 years＇ duration was carried out to evaluate the ef- ficacy of combining the mating disruption （MD） formulation Dismate ZETA （（9Z,12E）- tetradecadienyl acetate）, with the parasitoid Habrobracon hebetor against the Indianmeal moth Plodia interpunctella in a chocolate factory. The experimental period began early in 2011 and ended in late 2014. Begane Dismate dispensers were placed in the facility from 2011 to 2014 and H. hebetor was released in 2014. Pheromone-baited traps were used to monitor the flight activity of the male moths and oviposition Petri dish traps were placed to assess the progeny production ofP. interpunctella females. Following the start of MD, a decrease in the number ofP. interpunctella males caught in monitoring traps was observed from 2011 to 2013. A further decline in the moth population was noted in 2014, when MD was combined with the release of parasitoids. The presence of larvae in the oviposition cups was occasionally observed throughout the monitoring period, from 2011 to 2014. This study demonstrates that the combined system of MD and parasitoids is an effective and reliable technique that can be used to successfully control P. interpunctella.

关键词： control food processing integrated pest management mating disruption parasitoid Plodia interpunctella

Prediction of Proteins Associated with COVID-19 Based Ligand Designing and Molecular Modeling

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & Sciences 2020年第12期125卷 907-926页

作者： Majid Monajjemi Rahim Esmkhani Fatemeh Mollaamin sara Shahriari Department of Chemical Engineering Central Tehran BranchIslamic Azad UniversityTehran14987-54891Iran Department of Chemistry Khoy BranchIslamic Azad UniversityKhoy58159-88838Iran Department of Chemistry Central Tehran BranchIslamic Azad UniversityTehran***Iran

Current understanding about how the virus that causes COVID-19 spreads is largely based on what is known about similar *** of the Natural products are suitable drugs against SARS-CoV-2 main *** recognizing a strong inhibitor,we have accomplished dock-ing studies on the major virus protease with 4 natural product species as anti COVID-19(SARS-CoV-2),namely“Vidarabine”,“Cytarabine”,“Gem-citabine”and“Matrine”which have been extracted fromGillan’s leaves *** are known as Chuchaq,Trshvash,Cote-Couto and Khlvash in *** these four studied compounds,Cytarabine appears as a suitable com-pound with high effectiveness inhibitors to this *** by this work we present a method on the Computational Prediction of Protein Structure Associated with COVID-19 Based Ligand Design and Molecular *** this investigation,auto dock software(iGEM-DOCK)has been used and via this tool,the suitable receptors can be distinguished in whole COVID-19 component structures for forming a complex.“iGEMDOCK”is suitable to define the binding site *** docking simulation and NMR inves-tigation,we have demonstrated these compounds exhibit a suitable binding energy around 9 Kcal/mol with various ligand proteins modes in the bind-ing to COVID-19 ***,these data need further evaluation for repurposing these drugs against COVID-19 viruses,in both vivo&vitro.

关键词： COVID-19 receptor binding domain Gillan’s leaves plants angiotensin converting enzyme-2 protease domain

Gastrointestinal lesions associated with spondyloarthropathies

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2009年第20期15卷 2443-2448页

作者： Ambrogio Orlando sara Renna Giovanni Perricone Mario Cottone Department of General Medicine Pneumology and Nutrition Clinic "V. Cervello" Hospital Palermo University Department of General Medicine Pneumology and Nutrition Clinic"V. Cervello" Hospital Palermo University

Subclinical gut inflammation has been described in up to twothirds of patients with spondyloarthropathies(SpA).Arthritis represents an extraintestinal manifestation of several gastrointestinal diseases, including inflammatory bowel disease(IBD), Whipple's disease, Behcet's disease, celiac disease, intestinal bypass surgery, parasitic infections of the gut and pseudomembranous *** about two thirds of nonsteroidal antiinflammatory drug users demonstrate intestinal *** may manifest as a peripheral or axial *** spondyloarthropathy family consists of the following entities:ankylosing spondylitis, undifferentiated spondyloarthritis, reactive arthritis, psoriatic arthritis, spondyloarthritis associated with IBD, juvenile onset *** topic reviews the major gastrointestinal manifestations that can occur in patients with SpA and in nonsteroidal anti inflammatory drugs users.

关键词： Gastrointestinal diseases Inflammation Inflammatory bowel diseases Crohn's disease Arthritis Spondylosis Ankylosing spondylitis Nonsteroidal anti- inflammatory drugs

Geospatial susceptibility mapping of earthquake-induced landslides in Nuweiba area, Gulf of Aqaba, Egypt

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Mountain Science 2016年第7期13卷 1286-1303页

作者： sara ABUZIED Samia IBRAHIM Mona KAISER Tarek Saleem Center for Spatial Analysis University of Oklahoma Geology Departments Faculty of Science Suez Canal University

Earthquake induced landslides are one of the most severe geo-environmental hazards that cause enormous damage to infrastructure, property, and loss of life in Nuweiba area. This study developed a model for mapping the earthquake-induced landslide susceptibility in Nuweiba area in Egypt with considerations of geological, geomorphological, topographical, and seismological factors. An integrated approach of remote sensing and GIS technologies were applied for that target. Several data sources including Terra SAR-X and SPOT 5 satellite imagery, topographic maps, field data, and other geospatial resources were used to model landslide susceptibility. These data were used specifically to produce important thematic layers contributing to landslide occurrences in the region. A rating scheme was developed to assign ranks for the thematic layers and weights for their classes based on their contribution in landslide susceptibility. The ranks and weights were defined based on the knowledge from field survey and authors experiences related to the study area. The landslide susceptibility map delineates the hazard zones to three relative classes of susceptibility: high, moderate, and low. Therefore, the current approach provides a way to assess landslide hazards and serves for geo-hazard planning and prediction in Nuweiba area.

关键词： Geographic Information Systems(GIS) Remote Sensing(RS) Landslides Susceptibility mapping Weights Nuweiba area