检索结果-南通市图书馆

Asian Pacific journal of Tropical Medicine 2017年第7期10卷 689-700页

作者： Raimunda Samia Nogueira Brilhante Jamille Alencar Sales Vandbergue santos Pereira Débora de Souza Collares Maia Castelo-Branco Rossana de Aguiar Cordeiro Célia Maria de Souza Sampaio Manoel de araújo Neto Paiva joao Bosco Feitosa dos santos joséJúlio CostaSidrim Marcos Fábio Gadelha Rocha Department of Pathology and Legal Medicine Postgraduate Program in Medical MicrobiologySpecialized Medical Mycology CenterFederal University of Ceará School of Veterinary Medicine Postgraduate Program in Veterinary SciencesState University of Ceará Department of Social Sciences Postgraduate Program of SociologyState University of Ceará

Moringa oleifera Lam(Moringaceae) is a plant with high nutritional and medicinal value. Native to India, it is now widely distributed throughout tropical and subtropical regions of the world. Its different parts are sources of proteins, vitamins and minerals and present different pharmacological and biotechnological potential. Moreover, M. oleifera seeds are widely used in water and effluent treatment, for their coagulation, flocculation and sedimentation properties, their ability of improving water quality, by reducing organic matter and microbial load, with special applicability in intensive animal production systems, such as aquaculture. In addition, due to its high nutritional value and several medicinal properties, this tree may act as a nutritional and medical alternative for socially neglected populations. In this context, this review gathers information on M. oleifera, emphasizing its chemical constituents, nutritional, pharmacological and antimicrobial properties, applications in the treatment of water effluents, and ecological and social aspects.

关键词： Moringa oleifera Biotechnology Nutrition Health Aquaculture

Needle knife fstulotomy in flat and diverticular papillae:Is it time for redemption?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hepatobiliary & Pancreatic Diseases International 2022年第2期21卷 175-181页

作者： joão Fernandes jorge Canena Marta Moreira Gonçalo Alexandrino Luísa Figueiredo Tarcísio araújo Luís Lourenço David Horta Luís Lopes Department of Gastroenterology Santa Luzia Hospital-Unidade Local de Saúde Alto MinhoViana do CasteloPortugal Department of Gastroenterology Professor Doutor Fernando Fonseca HospitalAmadoraPortugal Department of Gastroenterology Nova Medical School/Faculty of Medical SciencesLisbonPortugal University Center of Gastrenterology-Hospital Cuf Tejo LisbonPortugal Life and Health Sciences Research Institute(ICVS) School of MedicineUniversity of MinhoBragaPortugal ICVS/3B’s-PT Government Associate Laboratory Braga/GuimarãesPortugal

Background: European Society of Gastrointestinal Endoscopy( ESGE) recommends needle-knife fstulotomy(NKF) as the preferred precut technique in cases when standard cannulation techniques fail. Despite scarce scientifc evidence, flat and diverticular papillae are thought not to be ideal for NKF, as they are associated with poor outcomes. The present study aimed to determine the outcomes of the use of NKF in relation to flat and intradiverticular papillae. Methods: This prospective multicenter study enrolled consecutive patients, evidencing na?ve flat(group A, n = 49) or diverticular papilla(group B, n = 28), who underwent NKF after failure of standard cannulation techniques. Diverticular morphology was subdivided into intradiverticular(group B1, n = 14) and diverticular border papillae(group B2, n = 14), using a previously validated endoscopic classifcation of the major papilla. The success of biliary cannulation at initial endoscopic retrograde cholangiopancreatography(ERCP), overall biliary cannulation, overall cannulation time, and the rate of adverse events were assessed in the study. Results: The initial cannulation rates were 93.9%, 64.3% and 71.4% for group A, B1, and B2, respectively( P = 0.005);overall cannulation rates after a second ERCP were 98.0%, 92.9% and 85.7%, respectively( P = 0.134). Adverse events occurred in 11.7% of patients, with post-ERCP pancreatitis(PEP) being the most common adverse event(10.4%). Although there was a trend towards a higher incidence of PEP in flat papillae, univariate and multivariate analyses did not show any signifcant relationship between pancreatitis and trainee involvement, papillary morphology, nor overall cannulation time. Conclusions: Although flat papillae are associated with high success rates of biliary cannulation using NKF, the rate of PEP is not negligible. NKF is feasible in diverticular papillae, but it is associated with a modest success rate in the initial ERCP.

关键词： Endoscopic retrograde cholangiopancreatography Needle-knife fstulotomy Small papilla Diverticular papilla Complications

Video over IP using standard-compatible multiple description coding: an IETF proposal

在线全文

学校读者我要写书评

暂无评论

journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第5期7卷 668-676页

作者： VITALI Andrea L BORNEO Antonio FUMAGALLI Marco rinaldo Roberto ST Microelectronics Strategy and System Technology Agrate Brianza (MI) 20041 Italy Center of Excellence for Research Innovation Education and Industrial Labs Partnership Milan 20133 Italy Department of Electrical Management and Mechanical Engineering University of Udine Udine 33100 Italy

Standard-compatible multiple description coding (MDC) and layered coding (LC) are efficient ways to ensure erasure resilient, scalable transmission of encoded multimedia sources via RTP, allowing a gradual degradation of the application quality with increasing packet loss rate and decreasing bandwidth/throughput on the network. In this paper we review the stan- dard-compatible framework proposed to IETF. Alternative techniques such as robust source coding and channel coding techniques (ARQ: automatic repeat request, FEC: forward error correction) are presented; their integration into the proposed framework is also discussed. The performances of MDC and LC either coupled with channel coding or not, are summarized by reference to current literature. Typical cases and examples are illustrated.

关键词： Video streaming, Robust coding, Multiple description coding, Layered coding, Loss/error resilience

Candida albicans isolated from urine:Phenotypic and molecular identification,virulence factors and antifungal susceptibility

在线全文

学校读者我要写书评

暂无评论

Asian Pacific journal of Tropical Biomedicine 2017年第7期7卷 624-628页

作者： Laura Wiebusch Adriana araújo de Almeida-Apolonio Luana Mireli Carbonera Rodrigues Bruna de Paula Bicudo Danielly Beraldo dos santos Silva Danielle Ferreira Lonchiati Renata Pires de araujo Alexéia Barufatti Grisolia Kelly Mari Pires de Oliveira Faculdade de Ciencias Biologicas e Ambientais Universidade Federal da Grande DouradosDouradosMSBrazil Faculdade de Medicina Universidade Federal de Mato Grosso do SulCampo GrandeMSBrazil Faculdade de Ciencias da Saude Universidade Federal da Grande DouradosDouradosMSBrazil Faculdade de Ciencias Agrarias e Veterinarias Universidade Estadual Paulista“Julio de Mesquita Filho”JaboticabalSPBrazil

Objective: To isolate Candida albicans(C. albicans) from the urine of hospitalized patients and assess the virulence factors and antifungal susceptibility profiles of the ***: Yeasts were identified using the chromogenic medium CHROMagar?, the VITEK~?2 system, hypertonic Sabouraud broth, tobacco agar, polymerase chain reaction,and DNA sequencing. The evaluated virulence factors were proteinase production,phospholipase production, and biofilm production on polystyrene. The broth microdilution technique was used to determine the minimum inhibitory ***: All yeasts isolated from urine were identified as C. albicans using both classical and molecular methods. Although 91.3% of the isolates showed no phospholipase activity, 56.5% showed strong proteinase activity and 91.7% produced biofilm. All microorganisms were sensitive to fluconazole, voriconazole and amphotericin B, but 56.5% of the yeasts showed resistance to ***: C. albicans isolates from urine have a high capacity for virulence and can be associated with infectious processes. Furthermore, the high percentage of isolates resistant to itraconazole is important because this antifungal agent is commonly used to treat fungal infections in the hospital environment.

关键词： Candidiasis Urinary tract Infection Virulence Antifungal susceptibility

A simple and easy method to measure ammonia volatilization:Accuracy under field conditions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Pedosphere 2021年第2期31卷 255-264页

作者： Márcio R.MARTINS Leonardo F.SARKIS Roni F.GUARESCHI Camila A.santos Selenobaldo A.C.SANT’ANNA Mohammad ZAMAN Claudia P.JANTALIA Bruno J.R.ALVES Robert M.BODDEY Ednaldo S.araÚjo Segundo URQUIAGA Embrapa Agrobiology Rod.BR 465km 7Seropédica RJ CEP 23891-000(Brazil) Agroscope Research Division Agroecology and EnvironmentClimate and Agriculture GroupReckenholzstrasse 191Zurich 8046(Switzerland) Federal Rural University of Rio de Janeiro(UFRRJ) Rod.BR 465km 7Seropédica RJ CEP 23891-000(Brazil) Soil and Water Management&Crop Nutrition Joint FAO/IAEA Division of Nuclear Techniques in Food&AgricultureP.O.Box 100Vienna A-1400(Austria)

Field studies on soil ammonia(NH_(3))volatilization are restricted in many countries owing to the high costs commonly demanded for accurate *** assessed the accuracy of a simple,open chamber design to capture NH_(3)under field conditions,as affected by different chamber placement ***-15 N was surface applied to lysimeters installed in the spaces between maize *** chambers made from plastic bottles were installed on each lysimeter with variations in i)N rates(3,8,13,and 18 g m^(-2)),ii)the height of the chamber above the soil surface(0,5,and 10 mm),and iii)chamber relocation(static ***).Reference lysimeters without chambers were used to measure NH_(3)losses by^(15)*** of NH_(3)-N accounted for more than 50%of the applied *** of the chambers had no impact on their NH_(3)-trapping efficiencies,proving to be an unnecessary *** in the height of the chambers above the soil surface affected the capture of NH_(3),but the results still maintained high linearity with the NH_(3)losses quantified by the reference method(R^(2)>0.98).When the same placement scheme used in the introductory study describing the chamber was utilized(static and touching the soil surface),we found a trapping efficiency of 60%,which was very similar to that(57%)obtained in the previous *** results show that this simple,open chamber design can be used with satisfactory accuracy under field conditions,provided that simple,standardized procedures are warranted.

关键词： ammonia collector chamber method field sampler gas emission low-cost chamber nitrogen cycling

Fluorescent probes for the detection of reactive oxygen species in human spermatozoa

在线全文

学校读者我要写书评

暂无评论

Asian journal of Andrology 2020年第5期22卷 465-471页

作者： Sara Escada-Rebelo Francisca G Mora Ana P Sousa Teresa Almeida-santos Artur Paiva joao Ramalho-santos phD Programme in Experimental Biology and Biomedicine CNC-Center for Neuroscience and Cell BiologyUniversity of CoimbraCoimbra 3004-504Portugal Biology of Reproduction and Stem Cell Group CNC-Center for Neuroscience and Cell BiologyUniversity of CoimbraCoimbra 3004-504Portugal IIIUC-Institute for Interdisciplinary Research Casa Costa AlemaoUniversity of CoimbraCoimbra 3030-789Portugal Reproductive Medicine Unit University Hospitals of CoimbraCoimbra 3004-561Portugal Faculty of Medicine University of CoimbraCoimbra 3000-370Portugal Clinical Pathology Unit University Hospitals of CoimbraCoimbra 3004-561Portugal Department of Life Sciences University of CoimbraCoimbra 3000-456Portugal

Reactive oxygen species(ROS)production is a by-product of mitochondrial activity and is necessary for the acquisition of the capacitated state,a requirement for functional ***,an increase in oxidative stress,due to an abnormal production of ROS,has been shown to be related to loss of sperm function,highlighting the importance of an accurate detection of sperm ROS,given the specific nature of this *** this work,we tested a variety of commercially available fluorescent probes to detect ROS and reactive nitrogen species(RNS)in human sperm,to define their *** both flow cytometry(FC)and fluorescence microscopy(FM),we confirmed that MitoSOX™Red and dihydroethidium(DHE)detect superoxide anion(as determined using antimycin A as a positive control),while DAF-2A detects reactive nitrogen species(namely,nitric oxide).For the first time,we also report that RedoxSensor™Red CC-1,CellROX®Orange Reagent,and MitoPYl seem to be mostly sensitive to hydrogen peroxide,but not ***,mean fluorescence intensity(and not percentage of labeled cells)is the main parameter that can be reproducibly monitored using this type of methodology.

关键词： flow cytometry fluorescent probes human spermatozoa oxidative stress reactive oxygen species

Optimizing power oscillations in an ellipsometric system

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Optics Letters 2018年第3期16卷 48-52页

作者： Manoel P. araújo Stefano De Leo Gabriel G. Maia Institute of Physics Cleb Wataghin State University of Campinas Campinas 13083-872 Brazil Department of Applied Mathematics State University of Campinas Campinas 13083-250 Brazil

Ellipsometry is a powerful and well-established optical technique used in the characterization of materials. It works by combining the components of elliptically polarized light in order to draw information about the optical system. We propose an ellipsometric experimental set-up to study polarization interference in the total internal reflection regime for Gaussian laser beams. The relative phase between orthogonal states can be measured as a power oscillation of the optical beam transmitted through a dielectric block, and the orthogonal components are then mixed by a polarizer. We show under which conditions the plane wave analysis is valid, and when the power oscillation can be optimized to reproduce a full pattern of oscillation and to simulate quarter- and half-wave plates.

关键词： Optimizing power oscillations in an ellipsometric system

Airborne bioaerosols and their impact on human health

在线全文

学校读者我要写书评

暂无评论

journal of Environmental Sciences 2018年第5期30卷 23-35页

作者： Ki-Hyun Kim Ehsanul Kabir Shamin ara Jahan Department of Civil and Environmental Engineering Hanyang UniversitySeoul 04763Republic of Korea Department of Farm Power&MachineryBangladesh Agricultural UniversityMymensinghBangladesh BRAC Clinic DhakaBangladesh

Bioaerosols consist of aerosols originated biologically such as metabolites, toxins, or fragments of microorganisms that are present ubiquitously in the environment. International interests in bioaerosols have increased rapidly to broaden the pool of knowledge on their identification,quantification, distribution, and health impacts（e.g., infectious and respiratory diseases,allergies, and cancer）. However, risk assessment of bioaerosols based on conventional culture methods has been hampered further by several factors such as：（1） the complexity of microorganisms or derivatives to be investigated;（2） the purpose, techniques, and locations of sampling; and（3） the lack of valid quantitative criteria（e.g., exposure standards and dose/effect relationships）. Although exposure to some microbes is considered to be beneficial for health,more research is needed to properly assess their potential health hazards including inter-individual susceptibility, interactions with non-biological agents, and many proven/unproven health effects（e.g., atopy and atopic diseases）.

关键词： Health effect Exposure Infectious diseases Respiratory diseases Cancer Guideline

Epidemiological and clinical characteristics of COVID-19 in a Brazilian public hospital

在线全文

学校读者我要写书评

暂无评论

World journal of Clinical Cases 2023年第8期11卷 1761-1770页

作者： Fillipe Dantas Pinheiro Luana Weber Lopes Rafael santos Dantas Miranda Dórea Glauber Rocha Lima araújo Filipe Antônio França da Silva Breno Bittencourt de Brito Maria Luísa Cordeiro santos Geovani Moreno santos Júnior Maria Teresa araújo de Lorenzo Barcia Renata de Amorim Marques AndréBezerra Botelho Anna Carolina Saúde Dantas Davi Tanajura Costa Adriano Fernandes Teixeira Cláudio Lima Souza Lucas Miranda Marques Guilherme Barretos Campos Márcio Vasconcelos Oliveira Dulciene Maria de Magalhães Queiroz Fabrício Freire de Melo Instituto Multidisciplinar em Saúde Universidade Federal da BahiaVitória da Conquista 45029-094BahiaBrazil Hospital Geral de Vitória da Conquista Vitória da Conquista 45030-160BahiaBrazil Departamento de Ciências da Saúde Universidade Estadual do Sudoeste da Bahia(UESB)Vitória da Conquista 45083-900BahiaBrazil Faculdade de Medicina Universidade Federal de Minas GeraisBelo Horizonte 31270-901Minas GeraisBrazil

BACKGROUND The coronavirus disease 2019(COVID-19)pandemic has become a major health concern *** that context,the understanding of epidemiological and clinical features associated with the disease and its severity is crucial for the establishment of strategies aimed at disease control and *** To describe epidemiological features,signs,symptoms,and laboratory findings among severely ill COVID-19 patients from an inten-sive care unit in northeastern Brazil as well as to evaluate predictor factors for disease *** This is a prospective single-center study that evaluated 115 patients admitted to the intensive care unit in a northeastern Brazilian *** The patients had a median age of 65.60±15.78 *** was the most frequent symptom,affecting 73.9%of the patients,followed by cough(54.7%).Fever was reported in approximately one-third of patients and myalgia in 20.8%of the *** least two comorbidities were found in 41.7%of the patients,and hypertension was the most prevalent(57.3%).In addition,having two or more comorbidities was a predictor of mortality,and lower platelet count was positively associated with *** and vomiting were two symptoms that were predictors of death,and the presence of a cough was a protective *** This is the first report of a negative correlation between cough and death in severely ill severe acute respiratory syndrome coronavirus 2-infected *** associations between comorbidities,advanced age,and low platelet count and the outcomes of the infection were similar to the results of previous studies,highlighting the relevance of these features.

关键词： COVID-19 Epidemiology Symptoms Comorbidities Laboratory parameters

A Theoretical Study of Binary and Ternary Hydride-Bonded Complexes N(Beh2)...X with N = 1 or 2 and X = K+or Ca+2

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open journal of Physical Chemistry 2011年第3期1卷 131-140页

作者： Boaz Galdino de Oliveira Regiane araújo 不详

A theoretical study of hydride bonds formed between beryllium hydride and alkaline earth metal cations is presented. B3LYP/6-311++G(d,p) calculations were used for determining the optimized geometries of the BeH2...K+, BeH2...Ca+2, BeH2...K+...BeH2, and BeH2...Ca+2...BeH2 hydride-bonded complexes, where among them the first are binaries, whereas the last ones are ternaries with the calcium (Ca+2) and potassium (K+) ions mediating the interactions with the beryllium hydride (BeH2). A detailed structural analysis were performed, by which the yielded profiles are in good agreement with results of the infrared vibrational spectrum, mainly in regards to the existence of red-shifted modes followed by enlarged absorption intensity ratios of the B-H bonds of the binary complexes. The capability of either donating or accepting of protons among BeH2, K+, and Ca+2, is currently treated in conformity with Lewis’s acid/base theory, but is also interpreted through the application of the Quantum Theory of Atoms in Molecules (QTAIM), whose formalism consents in the molecular modeling of concentrations and depletions of charge density ruled by the Laplacian shapes, charge transference fluxes, as well as by the local virial theorem of the electronic density with quantification of the kinetic and potential energies along the bonds and interactions.

关键词： Hydride Bonds Vibrational Infrared Spectrum B3LYP QTAIM