检索结果-南通市图书馆

Fluid Dynamics & Materials Processing 2022年第6期18卷 1639-1648页

作者： Pierre-Frédéric Villard Maureen Boudart ioana ilea Fabien Pierre Universitéde Lorraine CNRS Inria LORIA Nancy54000France IUT de Saint-DiéUniversitéde Lorraine Saint-Dié-des-Vosges88100France Technical University of Cluj-Napoca Cluj-Napoca400114Romania

Industrial woven meshes are composed of metal materials and are often used in construction,industrial and residential activities or *** objective of this work is defect detection in industrial fabrics in the quality control *** order to overcome the limitations of manual methods,which are often tedious and time-consuming,we propose a strategy that can automatically detect defects in micrometric steel meshes by means of a Convolutional Neural *** database used for such a purpose comes from real problem data for anomaly detection in micrometric woven *** detection is performed through supervised classification with a Convolutional Neural Network using a VGG19 *** define a pipeline and a strategy to tackle the related small amount of *** includes i)augmenting the database with translation,rotation and symmetry,ii)using pre-trained weights and iii)checking the learning curve behaviour through *** obtained results show that,despite the small size of our databases,detection accuracy of 96%was reached.

关键词： Industrial fabrics defects detection deep learning convolutional neural network VGG19

Zoonotic sources and the spread of antimicrobial resistance from the perspective of low and middle-income countries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Infectious Diseases of Poverty 2023年第3期12卷 73-87页

作者： ioana D.Olaru Birgit Walther Frieder Schaumburg Institute of Medical Microbiology University of MünsterMünsterGermany Advanced Light and Electron Microscopy Robert Koch-InstituteBerlinGermany Department of Environmental Hygiene German Environment AgencyBerlinGermany

Background Antimicrobial resistance is an increasing challenge in low and middle-income countries as it is wide-spread in these countries and is linked to an increased *** from human and environmental factors,animal-related drivers of antimicrobial resistance in low-and middle-income countries have special features that differ from high-income *** aim of this narrative review is to address the zoonotic sources and the spread of antimicrobial resistance from the perspective of low-and middle-income *** body Contamination with extended-spectrum beta-lactamase(ESBL)-producingEscherichia coli is highest in poultry(Africa:8.9–60%,Asia:53–93%)and there is a risk to import *** through poultry meat in *** aquacultures,the proportion of ESBL-producers *** can be high(27%)but the overall low quality of published studies limit the general conclusion on the impact of aquacultures on human *** colonization of wildlife is 1–9%in bats or 2.5–63%*** most of them are migratory animals,they can disperse antimicrobial resistant bacteria over large ***-called‘filth flies’are a relevant vector not only of enteric pathogens but also of antimicrobial resistant bacteria in settings where sanitary systems are *** Africa,up to 72.5%of‘filth flies’are colonized with ***,mostly conferred by CTX-M(24.4–100%).While methicillin-resistantStaphylococcus aureus plays a minor role in livestock in Africa,it is frequently found in South America in poultry(27%)or pork(37.5–56.5%)but less common in Asia(poultry:3%,pork:1–16%).Conclusions Interventions to contain the spread of AMR should be tailored to the needs of low-and middle-income *** comprise capacity building of diagnostic facilities,surveillance,infection prevention and control in small-scale farming.

关键词： Antimicrobial resistance Extended-spectrum Beta-lactamase Methicillin-resistant Staphylococcus aureus

“Treat-Repair-Treat”:Management of Left Main Coronary Compression by a Pulmonary Artery Aneurysm in a Patient with Atrial Septal Defect and Significant Pulmonary Hypertension

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Congenital Heart Disease 2023年第1期18卷 67-72页

作者： Andrei George Iosifescu Roxana Enache ioana Marinică Corina Radu Vlad Anton Iliescu Carol Davila University of Medicine and Pharmacy Bucharest020021Romania Department of Cardiac Surgery C.C.Iliescu Emergency Institute for Cardiovascular DiseasesBucharest022322Romania Department of Cardiology C.C.Iliescu Emergency Institute for Cardiovascular DiseasesBucharest022322Romania Department of Cardiovascular Anesthesia and Intensive Care C.C.Iliescu Emergency Institute for Cardiovascular DiseasesBucharest022322Romania

Left main coronary compression syndrome(LMCS)may complicate pulmonary artery aneurysms(PAA),usually developed in the context of pulmonary arterial hypertension(PAH).We report the case of a 51-year-old female patient with an atrial septal defect(unsuitable for device closure)complicated by a PAA generating a 90%left main *** significant PAH held us back from immediate *** specific dual PAH-targeted therapy(sildenafil and bosentan),the atrial septal defect could be closed with a unidirectional valved patch;the PAAinduced LMCS was treated by reductive *** postoperative course was ***-up showed clinical improvement,but PAH treatment was still *** three months,coronary angiography showed only an insignificant residual left main stenosis,proving that reductive pulmonary arterioplasty was effective in treating *** PAA requires further evaluation for LMCS,a dangerous but treatable ***“treat-repair-treat”strategy and shunt-closure with a unidirectional valved patch can both improve surgical prospects of LMCS with shunt-related PAH.

关键词： Atrial septal defect pulmonary arterial hypertension pulmonary artery aneurysm left main coronary compression syndrome surgery unidirectional valved patch

Influence of Doping Ions on the Antibacterial Activity of Biomimetic Coating on CoCrMo Alloy

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 Bionic Engineering 2015年第4期12卷 583-591页

作者： Georgeta Totea Daniela Ionita ioana Demetrescu Faculty of Applied Chemistry and Materials Science Department of General Chemistry University Politehnica of Bucharest 1-7 Polizu district 1 Bucharest Ro-O 11061 Romania

In this study biomimetic fluoridated phosphate doped hydrophilic coatings with various ions on CoCrMo alloy were pre- pared by electrodeposition. Cu and Zn ions were chosen for doping because of their well known antibacterial activity. The struc^xes of the coatings were identified using Fourier-transform Infrared （FTIR） analysis. X-ray Diffraction （XRD） analysis was performed to evaluate crystallite dimensions of the specimen surface. The contact angle was measured in order to establish the hydrophilic/hydrophobic balance and to compute surface energy. All studied samples have a hydrophilic character which is weaken after doping. The time evolution of ions releasing from the coatings was evaluated with an inductively plasma mass spectrometer after immersion in saline phosphate. The hemolytic experiments indicate that except the fluoridated coatings doped with Zn which is slightly hemolytic, all other samples are non hemolytic. The test for antibacterial activity for Staphy- lococcus aureus and Pseudomonas aeruginosa indicated that the fluoridated biomimetic coating doped with various positive ions increases bacterial growth inhibition level significantly. Fluoridated phosphate coating doped with Cu has best antibacterial activity

关键词： phosphate coating electrodeposition CoCrMo alloy doping ions antibacterial activity

Neurological complications of hematopoietic cell transplantation in children and adults

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2018年第6期13卷 945-954页

作者： Adriana Octaviana Dulamea ioana Gabriela Lupescu University of Medicine and Pharmacy Carol Davila Bucharest Romania Department of Neurology Fundeni Clinical Institute Bucharest Romania Radiology and Medical imaging Department Fundeni Clinical Institute Bucharest Romania

Hematopoietic cell transplantation（HCT） is widely performed for neoplastic and non-neoplastic diseases. HCT involves intravenous infusion of hematopoietic progenitor cells from human leukocyte antigen（HLA）-matched donor（allogeneic） or from the patient（autologous）. Before HCT, the patient is prepared with high dose chemotherapy and/or radiotherapy to destroy residual malignant cells and to reduce immunologic resistance. After HCT, chemotherapy is used to prevent graft rejection and graft versus host disease（Gv HD）. Neurological complications are related to the type of HCT, underlying disease, toxicity of the conditioning regimens, immunosuppression caused by conditioning regimens, vascular complications generated by thrombocytopenia and/or coagulopathy, Gv HD and inappropriate immune response. In this review, neurological complications are presented according to time of onset after HCT：（1） early complications（in the first month）-related to harvesting of stem cells, during conditioning（drug toxicity, posterior reversible encephalopathy syndrome）, related to pancytopenia,（2） intermediate phase complications（second to sixth month）-central nervous system infections caused by prolonged neutropenia and progressive multifocal leukoencephalopathy due to JC virus,（3） late phase complications（after sixth month）-neurological complications of Gv HD, second neoplasms and relapses of the original disease.

关键词： neurological complications hematopoietic cell transplantation posterior reversible encephalopathy syndrome central nervous system infections progressive multifocal leukoencephalopathy graft versus host disease second neoplasm immune reconstitution inflammatory syndrome post-transplant acute limbic encephalitis drug reaction with eosinophiIia and systemic symptoms

罗马尼亚乡村旅游发展经验及借鉴——以拉普斯地区为例

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

罗马尼亚乡村旅游发展经验及借鉴——以拉普斯地区为例

作者： FALCESCU ioana ALEXANDRA 苏州大学

学位级别：硕士

乡村旅游是一个在全球范围内广泛关注的领域。最近,随着新冠疫情的爆发,乡村旅游业受到了更多关注。本文的研究,以罗马尼亚拉普斯地区为典型案例,分析罗马尼亚乡村旅游的主要特征,思考改善乡村旅游业的方法,并对中国乡村旅游提出罗马尼... 详细信息

乡村旅游是一个在全球范围内广泛关注的领域。最近,随着新冠疫情的爆发,乡村旅游业受到了更多关注。本文的研究,以罗马尼亚拉普斯地区为典型案例,分析罗马尼亚乡村旅游的主要特征,思考改善乡村旅游业的方法,并对中国乡村旅游提出罗马尼亚的经验以资借鉴。促使笔者分析罗马尼亚乡村旅游发展的原因是因为罗马尼亚仍然是一个高度传统的国家,它以自然的方式保留其民俗习惯,并且在文化遗产方面具有巨大的潜力。事实上,也只有少数研究论文从乡村旅游的角度对该地区进行分析,这使笔者将理论定义和个人经验结合起来,以便对这一特定主题有一个更切实的分析。本文一共分为五章,前两章是介绍选题的背景、意义、方法、思路和研究现状。正文共有两部分,第一部分以Tara Lǎpusului地区为例,从多个角度分析了罗马尼亚乡村旅游的现状和未来发展状况。第二部分介绍了这些方法对中国的有益影响和借鉴,并讨论了这些方法在中国环境下的可能整合。

关键词：乡村旅游罗马尼亚拉普斯发展方法对中国的借鉴

Mapping flood and flooding potential indices： a methodological approach to identifying areas susceptible to flood and flooding risk. Case study： the Prahova catchment （Romania）

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Frontiers of Earth Science 2017年第2期11卷 229-247页

作者： Liliana ZAHARIA Romulus COSTACHE Remus PRAVALIE Gabriela ioana-TOROIMAC Faculty of Geography University of Bucharest 1 Nieolae Balcescu Str. 010041 Bucharest Romania National Institute of Hydrology and Water Management 97 Bucuresti-Ploiesti Str. District 1 Bucharest Romania

Given that floods continue to cause yearly significant worldwide human and material damages, flood risk mitigation is a key issue and a permanent challenge in developing policies and strategies at various spatial scales. Therefore, a basic phase is elaborating hazard and flood risk maps, documents which are an essential support for flood risk management. The aim of this paper is to develop an approach that allows for the identification of flash-flood and flood-prone susceptible areas based on computing and mapping of two indices： FFPI （Flash-Flood Potential Index） and FPI （Flooding Potential Index）. These indices are obtained by integrating in a GIS environment several geographical variables which control runoff（in the case of the FFPI） and favour flooding （in the case of the FPI）. The methodology was applied in the upper （mountainous） and middle （hilly） catchment of the Prahova River, a densely populated and socioeconomically well-developed area which has been affected repeatedly by water-related hazards over the past decades. The resulting maps showing the spatialization of the FFPI and FPI allow for the identification of areas with high susceptibility to flash- floods and flooding. This approach can provide useful mapped information, especially for areas （generally large） where there are no flood/hazard risk maps. Moreover, the FFPI and FPI maps can constitute a preliminary step for flood risk and vulnerability assessment.

关键词： flash-flood flooding Flash-flood/FloodingPotential Index Prahova River catchment Romania

Enhance Stability and in vitro Cell Response to a Bioinspired Coating on Zr Alloy with Increasing Chitosan Content

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 Bionic Engineering 2017年第3期14卷 459-467页

作者： Daniela Ionita Maria Vardaki Miruna S. Stan Anca Dinischiotu ioana Demetrescu Faculty of Applied Chemistry and Materials Science University Politehnica of Bucharest 1-7 Polizu 011061 Bucharest Romania Department of Biochemistry and Molecular Biology Faculty of Biology University of Bucharest 91-95 Splaiullndependentei 050095 Bucharest Romania Academy of Romanian Scientist Splaiullndependentei 54 050094 Bucharest Romania

The aim of the present paper is to characterize bioinspired chitosan （CS）＋ hydroxyapatite （HA） coatings with various components ratio on a zirconium alloy with titanium. The coatings were characterized by FT-IR, SEM, hydrophilic/hydrophobic balance, adherence, roughness, electrochemical stability and in vitro cell response. Electrochemical tests, including potentio- dynamic polarization curves and electrochemical impedance spectroscopy, were performed in normal saline physiological solution. Cell viability of MC3T3-E1 osteoblasts, lactate dehydrogenase, nitric oxide, and Reactive Oxygen Species （ROS） levels, as well as actin cytoskeleton morphology, were evaluated as biological in vitro tests. The results on in vitro cell response indicated good cell membrane integrity and viability for all samples, but an increased cell number, a decreased ROS level and a better cytoskeleton organization were noticed for the sample with a higher CS content. The coating with highest CS concen- tration indicated the best performance based on the experimental data. The highest hydrophilic character, highest resistance to corrosion and best biocompatibility as well recommend this coating for bioapplications in tissue engineering.

关键词： ZrTi alloy bioinspired coating cells response electrochemical stability

Endoscopic ultrasound-guided fine-needle aspiration pancreatic adenocarcinoma samples yield adequate DNA for next-generation sequencing:A cohort analysis

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 2023年第18期29卷 2864-2874页

作者： Stefania Bunduc Bianca Varzaru Razvan Andrei Iacob Andrei Sorop ioana Manea Andreea Spiridon Raluca Chelaru Adina Emilia Croitoru Gabriel Becheanu Mona Dumbrava Simona Dima Irinel Popescu Cristian Gheorghe Faculty of Medicine Carol Davila University of Medicine and PharmacyBucharest 020021Romania Digestive Diseases and Liver Transplantation Center Fundeni Clinical InstituteBucharest 022328Romania Center of Excellence in Translational Medicine Fundeni Clinical InstituteBucharest 022328Romania

BACKGROUND Genetic tests are increasingly performed for the management of unresectable pancreatic *** genotyping aimed samples current guidelines recommend using core specimens,although based on moderate quality ***,in clinical practice among the endoscopic ultrasound(EUS) guided tissue acquisition methods,fine needle aspiration(FNA) is the most widely *** To assess the adequacy for next generation sequencing(NGS) of the DNA yielded from EUS-FNA pancreatic adenocarcinoma(PDAC) *** Between November 2018 and December 2021,105 patients with PDAC confirmed by EUS-FNA were included in the study at our tertiary gastroenterology *** 22 gauge(G) or 19G FNA needles were *** pass was dedicated to DNA *** concentration and purity(A260/280,A260/230) were assessed by *** assessed the differences in DNA parameters according to needle size and tumor characteristics(size,location) and the adequacy of the extracted DNA for NGS(defined as A260/280 ≥ 1.7,and DNA yield:≥ 10 ng for amplicon based NGS,≥ 50 ng for whole exome sequencing [WES],≥ 100 ng for whole genome sequencing [WGS]) by analysis of variance and ttest ***,we compared DNA purity parameters across the different DNA yield *** Our cohort included 49% male patients,aged 67.02 ± 8.38 *** 22G needle was used in 71%of the *** DNA parameters across our samples varied as follows:DNA yield:1289 ng(inter quartile range:534.75-3101),A260/280 = 1.85(1.79-1.86),A260/230 = 2.2(1.72-2.36).DNA yield was > 10 ng in all samples and > 100 ng in 93% of them(one sample < 50 ng).There were no significant differences in the concentration and A260/280 between samples by needle *** size was the only independent predictor of A260/230 which was higher in the 22G samples(P =0.038).NGS adequacy rate was 90% for 19G samples regardless of NGS type,and for 22G samples it reached 89% for WGS adequacy and 91% for WES and

关键词： Pancreatic adenocarcinoma Endoscopic ultrasound guided fine needle aspiration Next generation sequencing DNA yield Needle size Genetic testing

Low fermentable oligosaccharides, disaccharides,monosaccharides, and polyols diet in children

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 Clinical Cases 2019年第18期7卷 2666-2674页

作者： ioana Fodor Sorin Claudiu Man Dan L Dumitrascu 3^rd Pediatric Department Iuliu Hatieganu University of Medicine and PharmacyCluj-Napoca 400006Romania 2^nd Medical Department Iuliu Hatieganu University of Medicine and PharmacyCluj-Napoca 400006Romania

Irritable bowel syndrome (IBS) is a lifelong condition with a high prevalence among children and adults. As the diet is a frequent factor that triggers the symptoms, it has been assumed that by avoiding the consumption of fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAP), the symptoms might be improved. Therefore, in the past decade, low FODMAP diet has been intensively investigated in the management of IBS. The capacity of FODMAPs to trigger the symptoms in patients with IBS was related to the stimulation of mechanoreceptors in the small and large intestine. This stimulation appears as a response to a combination of increased luminal water (the osmotic effect) and the release of gases (carbon dioxide and hydrogen) due to the fermentation of oligosaccharides and malabsorption of fructose, lactose and polyols. Numerous studies have been published regarding the efficacy of a low FODMAP diet compared to a traditional diet in releasing the IBS symptoms in adults, but there are only a few studies in the juvenile population. The aim of this review is to analyze the current data on both low FODMAP diet in children with IBS and the effects on their nutritional status and physiological development, given the fact that it is a restrictive diet.

关键词： Low fermentable oligosaccharides Disaccharides Monosaccharides Polyols Diet Children Irritable bowel syndrome Symptom