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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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Doubled haploid technology and synthetic apomixis:recent advances and applications in future crop breeding

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Molecular Plant 2024年第7期17卷 1005-1018页

作者： Yanzhi Qu Alisdair r.fernie Jie Liu Jianbing Yan National Key Laboratory of crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070China Hubei Hongshan Laboratory Wuhan 430070China Department of Molecular Physiology Max-Planck-Institute of Molecular Plant Physiology14476 Potsdam-GolmGermany center of Plant Systems Biology and Biotechnology 4000 PlovdivBulgaria azhouwan National Laboratory Sanya 572024China

Doubled haploid(DH)technology and synthetic apomixis approaches can considerably shorten breeding cycles and enhance breeding *** with traditional breeding methods,DH technology offers the advantage of rapidly generating inbred lines,while synthetic apomixis can effectively fix hybrid *** this review,we focus on(i)recent advances in identifying and characterizing genes responsible for haploid induction(Hl),(ii)the molecular mechanisms of Hl,(ili)spontaneous haploid genome doubling,and(iv)crop synthetic *** also discuss the challenges and potential solutions for future crop breeding programs utilizing DH technology and synthetic ***,we provide our perspectives about how to integrate DH and synthetic apomixis for precision breeding and de novo domestication.

关键词： maize doubled haploid technology haploid induction synthetic apomixis precision breeding

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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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first Detailed Photometric Investigation on the Nature of contact Binary System AA cet

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research in Astronomy and Astrophysics 2023年第7期 156-165页

作者： M.f.Y?ld?r?m f.Soydugan ?anakkale Onsekiz Mart University Astrophysics Research Center and Ulup?nar Observatory ?anakkale Onsekiz Mart University Faculty of Sciences Department of Physics

The TESS light curve(Lc) of the marginal contact binary A A cet was analyzed simultaneously with the radial velocity and the orbital period(op) change of the system was *** physical parameters of the system were obtained by analyzing the Lc of A A cet with the Wilson-Devinney method,and the absolute parameters of the components were calculated using the results *** the components of AA cet,the masses and radii were calculated as M1=1.39±0.04 M⊙,M2=0.48±0.02 M⊙,and r1=1.64±0.03 r⊙,r2=1.01±0.04 r⊙,*** cet is a marginal contact binary with a temperature difference of 1305 K between its components.A total of 14 eclipse times were obtained from the TESS data and used in the op analysis together with those collected from the *** has been observed that the change in the op of AA cet is in the form of a decreasing *** mass transfer between the components has been interpreted as the reason for this *** op decrease amount of A A cet was obtained as dP/dt=0.0062±0.0006 s *** the reason for this decrease was attributed to a 3.3(9)×10-8M⊙.mass transfer per year from the more massive component to the less massive *** age of A A cet has been estimated as 7 Gyr,as the age of contact systems helps us to understand their evolution.

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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(ffer 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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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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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：肝癌胆管特性介绍增生结节细胞合并放射

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first Detailed Photometric Investigation on the Nature of contact Binary System AA cet

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research in Astronomy and Astrophysics 2023年第7期23卷 154-163页

作者： M.f.Yıldırım f.Soydugan Çanakkale Onsekiz Mart University Astrophysics Research Center and Ulupınar Observatory17020ÇanakkaleTurkey Çanakkale Onsekiz Mart University Faculty of SciencesDepartment of Physics17020ÇanakkaleTurkey

The TESS light curve(Lc)of the marginal contact binary A A cet was analyzed simultaneously with the radial velocity and the orbital period(op)change of the system was *** physical parameters of the system were obtained by analyzing the Lc of A A cet with the Wilson-Devinney method,and the absolute parameters of the components were calculated using the results *** the components of AA cet,the masses and radii were calculated as M_(1)=1.39±0.04 M_⊙,M_(2)=0.48±0.02 M_⊙,and r_(1)=1.64±0.03 r_⊙,r_(2)=1.01±0.04 r_⊙,*** cet is a marginal contact binary with a temperature difference of 1305 K between its components.A total of 14 eclipse times were obtained from the TESS data and used in the op analysis together with those collected from the *** has been observed that the change in the op of AA cet is in the form of a decreasing *** mass transfer between the components has been interpreted as the reason for this *** op decrease amount of A A cet was obtained as dP/dt=0.0062±0.0006 s yr^(-1).and the reason for this decrease was attributed to a 3.3(9)×10^(-8)M_⊙.mass transfer per year from the more massive component to the less massive *** age of A A cet has been estimated as 7 Gyr,as the age of contact systems helps us to understand their evolution.

关键词： (stars:)binaries:eclipsing stars:fundamental parameters stars:individual(AA cet)

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