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Spontaneous infection of Ascites Fluid at the National and University Hospital Hubert koutoukou Maga in Cotonou: Prevalence and Associated Factors

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open Journal of Gastroenterology 2024年第1期14卷 1-10页

作者： Aboudou Raïmi kpossou Comlan N’dehougbèa Martin Sokpon Chloé Andréa Obekandon opè Mahouton Jacques Tovizounkou kadiatou Diallo Rodolph koffi Vignon Jean Séhonou University Clinic of Hepato-Gastroenterology National and University Hospital Hubert Koutoukou Maga (CNHU-HKM) Cotonou Benin University Clinic of internal Medicine CNHU-HKM Cotonou Benin Department of internal Medicine Donka National Hospital Conakry Guinea

Background: Spontaneous ascites fluid infection (SAFi) is an extremely serious and frequently encountered complication in cirrhotic patients. We aimed to determine the prevalence of SAFi and the factors associated with it in the largest hospital in Cotonou. Methods: This was a retrospective descriptive and analytical study conducted from January 2013 to July 2019, at the National and University Hospital Hubert koutoukou Maga (CNHU-HkM) in Cotonou, Benin. All patients followed in the University Clinic of Hepato-Gastroenterology and diagnosed with SAFi were included. Results: Eighty-two patients were included, predominantly males (69.5%), with a mean age of 51.5 ± 14.5 years. Among them, 32 had SAFi, i.e., a prevalence of 39%. Of the 32 cases of SAFi, the culture of ascites fluid was positive in 6 cases (18.7%). The most frequent germ found in SAFi was Escherichia coli (5 patients, 83.3%). The factors associated with SAFi in this study were: abdominal pain (p = 0.004), increased bilirubinemia (p = 0.009), decreased prothrombin level 20 (p = 0.001). Conclusion: SAFi was common in cirrhotic patients in the department. Certain clinical and paraclinical factors were associated with it, as was the severity of cirrhosis. Early diagnosis and aetiological management of cirrhosis could reduce its frequency.

关键词： Ascites infection Cirrhosis Cotonou

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Stability Analysis of DC Microgrid Clusters Based on Step-by-step System Matrix Building Algorithm

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Journal of Modern Power Systems and Clean Energy 2024年第3期12卷 900-912页

作者： k.Jithin N.Mayadevi R.Hari kumar V.P.Mini the Department of Electrical Engineering College of Engineering TrivandrumAPJ Abdul Kalam Technological University(APJAKTU)ThiruvananthapuramIndia

DC microgrids(DCMGs)are made up of a network of sources and loads that are connected by a number of power electronic converters(PECs).The increase in the number of these PECs instigates major concerns in system *** interconnecting the microgrids to form a cluster,the system stability must be *** paper proposes a novel stepby-step system matrix building(SMB)algorithm to update the system matrix of an existing DCMG cluster when a new microgrid is added to the cluster through a distribution *** stability of the individual DCMGs and the DCMG cluster is analyzed using the eigenvalue ***,the particle swarm optimization(PSO)algorithm is used to retune the controller gains if the newly formed cluster is not *** simulation of the DCMG cluster is carried out in MATLAB/Simulink environment to test the proposed *** results are also validated using the op4510 real-time simulator(RTS).

关键词： Converter DC microgrid cluster eigenvalue interconnection particle swarm optimization system stability system matrix

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Spatial distribution of archaeal and bacterial ammonia oxidizers in the littoral buffer zone of a nitrogen-rich lake

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Journal of Environmental Sciences 2012年第5期24卷 790-799页

作者： Huub J. M. op den Camp Department of Microbiology IWWR Radboud University Nijmegen

The spatial distribution and diversity of archaeal and bacterial ammonia oxidizers （AOA and AOB） were evaluated targeting amoA genes in the gradient of a littoral buffer zone which has been identified as a hot spot for N cycling. Here we found high spatial heterogeneity in the nitrification rate and abundance of ammonia oxidizers in the five sampling sites. The bacterial amoA gene was numerically dominant in most of the surface soil but decreased dramatically in deep layers. Higher nitrification potentials were detected in two sites near the land/water interface at 4.4–6.1 μg NO2-N/（g dry weight soil·hr）, while only 1.0–1.7 μg NO2-N/（g dry weight soil·hr） was measured at other sites. The potential nitrification rates were proportional to the amoA gene abundance for AOB, but with no significant correlation with AOA. The NH4＋ concentration was the most determinative parameter for the abundance of AOB and potential nitrification rates in this study. Higher richness in the surface layer was found in the analysis of biodiversity. Phylogenetic analysis revealed that most of the bacterial amoA sequences in surface soil were affiliated with the genus of Nitrosopira while the archaeal sequences were almost equally affiliated with Candidatus ‘Nitrososphaera gargensis’ and Candidatus ‘Nitrosocaldus yellowstonii’. The spatial distribution of AOA and AOB indicated that bacteria may play a more important role in nitrification in the littoral buffer zone of a N-rich lake.

关键词： littoral zone ammonia oxidation archaea bacteria heterogeneity abundance

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Acute necrotizing pancreatitis as fi rst manifestation of primary hyperparathyroidism

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World Journal of Gastroenterology 2010年第23期16卷 2959-2962页

作者： Jeroen i Lenz Jimmy M Jacobs Bart op de Beeck ivan A Huyghe Paul A Pelckmans Tom G Moreels Division of Gastroenterology and Hepatology Antwerp University Hospital Division of Radiology Antwerp University Hospital Division of Nuclear Medicine Antwerp University Hospital

We report the case of a female patient with severe acute necrotizing pancreatitis associated with hypercalcemia as first manifestation of primary hyperparathyroidism caused by a benign parathyroid *** the acute pancreatitis was treated *** patient subsequently underwent surgical resection of the parathyroid adenoma and surgical clearance of a large infected pancreatic *** the association of parathyroid adenoma-induced hypercalcemia and acute pancreatitis is a known medical entity,it is very *** pathophysiology of hypercalcemia-induced acute pancreatitis is therefore not well known,although some mechanisms have been *** is important to treat the provoking ***,the cause of hypercalcemia should be identif ied *** resection of the parathyroid adenoma is the ultimate therapy.

关键词： Acute necrotizing pancreatitis Hypercalcemia Primary hyperparathyroidism Parathyroid adenoma

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EFFECTS OF HUMAN ACTiViTiES ON STRUCTURE AND COMPOSiTiON OF WOODY SPECiES OF THE NOkREk BiOSPHERE RESERVE OF MEGHALAYA, NORTHEAST iNDiA

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植物生态学报 2008年第1期32卷 73-79页

作者： Tripathi op Pandey HN Tripathi RS Department of Forestry North Eastern Regional Institute of Science ＆ Technology Deemed University Nirjuli-791 109 Arunachal Pradesh India Department of Botany North-Eastern Hill Univershy Shillong-793 022 India

Aims Our study was conducted in the Nokrek Biosphere Reserve(NBR) in the Garo hills districts of Meghalaya,Northeast *** aim was to assess the effects of human activities on plant diversity,population structure and *** We selected a representative 1.2 hm2 stand in both the core and buffer zones of *** and composition were determined by randomly sampling square quadrats,population structure was assessed by determining age structure,and regeneration was assessed by measuring densities of seedling,sapling and adult *** findings More woody species were recorded from the core zone than the buffer zone(87 vs.81 species),and there were a large number of tropical,temperate,and Sino-Himalayan,Burma-Malaysian and Malayan elements,primitive families and primitive *** trees were distributed in three distinct strata,canopy,subcanopy and *** and sapling layers had the highest species richness(81%-88%).Lauraceae and Euphorbiaceae were the dominant families in terms of the number of species,and a large number of families were represented by single *** woody species(57%-79%) were contagiously distributed and had low frequency(ity was high in the buffer zone,its basal area was low compared to the stand in the core *** similarity and high β-diversity indicate marked differences in species composition of the *** diversity index was high in both the stands,while Simpson dominance index was *** diameter-class distribution for dominant species revealed that the most had a large number of young individuals in their *** of tree seedlings,followed by a steep decline in population density of saplings and adult trees,indicated that the seedling to sapling stage was the most critical in the life cycle of the tree *** species(42%-48%) had no regeneration,25%-35% had good/fair regeneration,and the rest had poor regeneration or reoccurred as imm

关键词：印度生物圈自然保护区散布图种群结构再生物种丰富度 NOkREk国家公园

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Structural optimization of a reusable seismic frame active link

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China Welding 2024年第3期33卷 1-7页

作者： károly Jármai Maryam Hasanali kaveh Andisheh University of Miskolc Miskolc H-3515Hungary New Zealand Heavy Engineering Research Association HERAAuckland 2104New Zealand

Circular design encompasses the use of inventive construction methodologies that possess the capability to be readily dismantled,repurposed,or recycled upon reaching the conclusion of their functional *** work specifically examines the creation of a reusable design case-study idea for seismic frame design,which is commonly employed in steel-frame constructions in New Zealand.A reusable op-timized design for the full seismic frame was proposed in the *** the dimensions of welded structures,whether in terms of weight or cost,leads to a decrease in the weight of the steel *** decrease in weight is directly associated with a decrease in environ-mental impact,as the environmental impact is directly proportional to the mass of the *** environmental consequences associ-ated with welding technique are contingent upon the dimensions of the weld,hence exerting an indirect influence on the overall mass of the *** the presence of mass dependence in all three areas,albeit in distinct manners,this work employed a multi-objective func-tion optimization strategy to simultaneously address these areas while also partially evaluating them *** this way substantial re-ductions can be achieved both at structural mass and environmental effects.

关键词： welded frame design structural optimization environmental effects cost calculations

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Rhizobium Lipo-chitooligosaccharide Signaling Triggers Accumulation of Cytokinins in Medicago truncatula Roots

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Molecular Plant 2015年第8期8卷 1213-1226页

作者： Arjan van Zeijl Rik H.M. op den Camp Eva E. Deinum Tatsiana Charnikhova Henk Franssen Huub J.M. op den Camp Harro Bouwmeester Wouter kohlen Ton Bisseling Rene Geurts Department of Plant Sciences Laboratory of Molecular Biology Wageningen University Droevendaalsesteeg 16708 PB Wageningen The Netherlands Department of Systems Biophysics FOM institute AMOLF Science Park 104 1098 XG Amsterdam The Netherlands Department of Plant Sciences Laboratory of Plant Physiology Wageningen University Droevendaalsesteeg 1 6708 PB Wageningen The Netherlands Department of Microbiology IWWR Radboud University Nijmegen Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands College of Science King Saud University Post Office Box 2455 Riyadh 11451 Saudi Arabia

Legume rhizobium symbiosis is initiated upon perception of bacterial secreted lipo-chitooligosaccharides （LCOs）. Perception of these signals by the plant initiates a signaling cascade that leads to nodule formation. Several studies have implicated a function for cytokinin in this process. However, whether cytokinin accu- mulation and subsequent signaling are an integral part of rhizobium LCO signaling remains elusive. Here, we show that cytokinin signaling is required for the majority of transcriptional changes induced by rhizo- bium LCOs. in addition, we demonstrate that several cytokinins accumulate in the root susceptible zone 3 h after rhizobium LCO application, including the biologically most active cytokinins, trans-zeatin and iso- pentenyl adenine. These responses are dependent on calcium- and calmodulin-dependent protein kinase （CCaMk）, a key protein in rhizobial LCO-induced signaling. Analysis of the ethylene-insensitive Mtein21 Mtsickle mutant showed that LCO-induced cytokinin accumulation is negatively regulated by ethylene. Together with transcriptional induction of ethylene biosynthesis genes, it suggests a feedback loop negatively regulating LCO signaling and subsequent cytokinin accumulation. We argue that cytokinin accumulation is a key step in the pathway leading to nodule organogenesis and that this is tightly controlled by feedback loops.

关键词： Medicago truncatula cytokinin ethylene rhizobium lipo-chitooligosaccharides CRE1

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Population genetic structure of Culex quinquefasciatus in india by iSSR marker

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Asian Pacific Journal of Tropical Medicine 2011年第5期4卷 357-362页

作者： Mendki MJ Sharma Ak Vijay Veer Agrawal op Shri Prakash Parashar BD Entomology Division Defence R & D EstablishmentJhansi RoadGwaliorMadhya PradeshIndia School of Studies in Zoology Jiwaji UniversityGwaliorMadhya PradeshIndia Entomology Division Defence R&D EstablishmentJhansi RoadGwaliorMadhya PradeshIndia

Objective:To characterize the genetic structure of various populations of Culex quinquefasciatus (***) from india representing different geoclimatic ***:inter simple sequence repeat(iSSR) markers were used.A set of 20 primers were screened with the laboratory populations of mosquito *** the iS 40 primer was chosen based on the scorable banding pattern showing 100 percent polymorphism among the various *** statistical analysis was done using PopGENE 1.31 *** consensus tree was generated based on UPGMA modified from NEiGHBOR procedure of PHYLiP Version ***:The cluster analysis shows the main cluster which is divided into two sub cluster representing all the populations separated as per their phylogeographic and geoclimatic ***: The findings will be helpful in understanding the population variation under different ecological conditions and development of effective vector management strategies.

关键词： Genetic structure Culex quinquefasciatus iSSR marker india

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impact of welding equipment on power quality

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China Welding 2024年第3期33卷 44-51页

作者： kovács Attila Molnár Judit Jármai károly institute of Physics and Electrical Engineering Department of Electrical and Electronic Engineering Institutional DepartmentUniversity of MiskolcMiskolc H3515Hungary institute of Energy and Chemical Engineering University of MiskolcMiskolc H3515Hungary

in an industrial facility,many electrical consumers can affect the quality of ***,the freedom from interference sources of these devices and equipment can be crucial for quality and uninterrupted electricity *** welding equipment is also a possible source of *** electrical harmonic injections created by welding equipment into the electrical network can affect the op-eration of other consumers connected to the given distribution points and cause unjustified overheating and shutdowns of some network *** aim of the research is to analyse the current harmonic injection of welding equipment of different types and modes of oper-ation connected to the internal distribution network of the industrial *** effectiveness of the active harmonic filter built into the welding equipment was also examined in the *** results showed that the built-in active harmonic filter of the DC045 laser welding equipment was ineffective because the total harmonic distortion(THD)was about three times the 8%allowed by iEEE 519−2022 *** current harmonic injection of MiG 320 and MM403 type welding equipment was more than five times the permissible value of 5%.The current harmonic distortion of the PLAS140 type plasma-jet cutter equipment was below the 5%value allowed in the standard,thus it com-plied with *** on the measurement results,it can be concluded that the use of protection against harmonics is also necessary for weld-ing ***,proposals were made in the paper to reduce the effect of harmonics.

关键词： electrical transients harmonic distortion electrical network disturbances voltage breaks total harmonic distortion(THD)

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Combined hepatocellular and cholangiocellular carcinoma presenting with radiological characteristics of focal nodular hyperplasia

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World Journal of Gastroenterology 2009年第31期15卷 3940-3943页

作者： inneke Willekens Anne Hoorens Caroline Geers Bart op de Beeck Frederik Vandenbroucke Johan de Mey Department of Radiology and Pathology

Combined hepatocellular and cholangiocellular carcinoma (cHCC-CC) is a rare tumor type containing unequivocal elements of both hepatocellular carcinoma and cholangiocarcinoma that are intimately mixed. Although these tumors are usually considered to be more related to hepatocellular carcinoma than to cholangiocarcinoma, they sometimes, in contrast to hepatocellular carcinoma, contain a significant amount of fibrous stroma. This might in some cases explain atypical radiological features. We report a case of a cHCC-CC in a 47-year-old female that resembled focal nodular hyperplasia on Magnetic Resonance imaging. Correlation of imaging and serum levels of α-fetoprotein and CA19.9 can help to make the correct diagnosis preoperatively.

关键词： Combined hepatocellular Cholangiocellular carcinoma Magnetic resonance imaging

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