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Perception and Management of Hemorroid Disease at the CSREF of the Commune Bamako Mali
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作者 Tounkara Cheickna Diarra Mohamed Hassimy +6 位作者 Diarra Issaka Sanogo Keita Bakary Dembele Bakary Tientigui Traore Alhassane Togo Pierre Adégné Lassana Kante 《Surgical Science》 2024年第2期89-97,共9页
This work was a prospective transversal study over 6 (six) months from May 2 to December 31, 2017 at the Reference Health Center of Commune I and the Chérif la Confessional Health Center in Bamako. The aim was to... This work was a prospective transversal study over 6 (six) months from May 2 to December 31, 2017 at the Reference Health Center of Commune I and the Chérif la Confessional Health Center in Bamako. The aim was to study the knowledge, attitudes and behavioral practices linked to hemorrhoids in Commune I of the Bamako district, to evaluate the frequency of hemorrhoidal disease, to determine the knowledge, attitudes and behavioral practices linked to hemorrhoids among patients, their companions and traditional therapists in Commune I of the district of Bamako and the factors which influence the motivations and decisions to resort to medical-surgical care and traditional medicine in patients suffering from hemorrhoids in order to analyze the results of the management of hemorrhoidal disease at Cs Ref CI. We collected 36 patients with hemorrhoidal disease, 25 caregivers and 15 traditional hemorrhoidal disease therapists. The sex ratio was 1.25 for patients;6.5 for traditional therapists and 1.5 for accompanying people. The average age of the patients was 32.75 years;49 years for traditional therapists and 28.76 years for those accompanying them. 55.6% of patients claim to know about hemorrhoidal disease;100% of traditional therapists and 80% of accompanying people. The dietary factor of hemorrhoidal disease was mentioned by 90% of patients;66.7% of traditional therapists and 100% of caregivers. Most patients initially resorted to traditional treatment out of fear of surgery and its after-effects. The patients were treated medically and surgically. 展开更多
关键词 Hemorrhoidal Disease CAREGIVERS Traditional Therapists Patients Surgery CS Ref CI
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THz plasmonics and electronics in germanene nanostrips
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作者 Talia Tene Marco Guevara +4 位作者 Gabriela Tubon-Usca Oswaldo Villacrés Cáceres Gabriel Moreano Cristian Vacacela Gomez Stefano Bellucci 《Journal of Semiconductors》 EI CAS CSCD 2023年第10期37-49,共13页
Germanene nanostrips(GeNSs)have garnered significant attention in modern semiconductor technology due to their exceptional physical characteristics,positioning them as promising candidates for a wide range of applicat... Germanene nanostrips(GeNSs)have garnered significant attention in modern semiconductor technology due to their exceptional physical characteristics,positioning them as promising candidates for a wide range of applications.GeNSs exhibit a two-dimensional(buckled)honeycomb-like lattice,which is similar to germanene but with controllable bandgaps.The modeling of GeNSs is essential for developing appropriate synthesis methods as it enables understanding and controlling the growth process of these systems.Indeed,one can adjust the strip width,which in turn can tune the bandgap and plasmonic response of the material to meet specific device requirements.In this study,the objective is to investigate the electronic behav-ior and THz plasmon features of GeNSs(≥100 nm wide).A semi-analytical model based on the charge-carrier velocity of free-standing germanene is utilized for this purpose.The charge-carrier velocity of freestanding germanene is determined through the GW approximation(V_(F)=0.702×10^(6)m·s^(−1)).Within the width range of 100 to 500 nm,GeNSs exhibit narrow bandgaps,typi-cally measuring only a few meV.Specifically,upon analysis,it was found that the bandgaps of the investigated GeNSs ranged between 29 and 6 meV.As well,these nanostrips exhibit√q-like plasmon dispersions,with their connected plasmonic fre-quency(≤30 THz)capable of being manipulated by varying parameters such as strip width,excitation plasmon angle,and sam-ple quality.These manipulations can lead to frequency variations,either increasing or decreasing,as well as shifts towards larger momentum values.The outcomes of our study serve as a foundational motivation for future experiments,and further con-firmation is needed to validate the reported results. 展开更多
关键词 nanostrips carrier velocity germanene PLASMONICS ELECTRONICS
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Acute Intestinal Occlusions at the Cs Ref of Commune I of Bamako
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作者 Tounkara Cheickna Samake Hamidou +7 位作者 Diarra Issaka Sanogo Modibo Traore Fousseyni Togola Modibo Traore Alhassane Dembele Bakary Tientigui Togo Pierre Adégné Kante Lassana 《Surgical Science》 2023年第12期748-757,共10页
Acute intestinal obstructions are defined as a complete and persistent cessation of materials and gases in a segment of the digestive tract. They constitute a medical-surgical emergency. Our work aimed to study acute ... Acute intestinal obstructions are defined as a complete and persistent cessation of materials and gases in a segment of the digestive tract. They constitute a medical-surgical emergency. Our work aimed to study acute intestinal obstructions, to determine the hospital frequency, to describe the aspects (epidemiological, clinical and therapeutic), to analyze the surgical consequences and to evaluate the cost of the management of obstructions. acute intestinal infections in the general surgery department of the reference health center of commune I of Bamako in Mali. Our retrospective, longitudinal and descriptive study took place from January 1, 2015 to December 31, 2019 in the general surgery department of the reference health center in commune I of Bamako. The average age was 47.72 years with extremes of 15 and 78 years and a standard deviation of 16.07. Our sex ratio (56 men/15 women) was 3.38. The clinical signs were dominated by abdominal pain (100%), vomiting (52.9%), cessation of materials and gases (25.4%) and meteorism (35.3%). The main etiologies found intraoperatively were strangulated hernia (54.9%), bands and/or adhesions (21.1%), sigmoid volvulus (12.7%), colorectal tumor (7%), small bowel volvulus (2.8%) and acute intestinal intussusception (1.4%). Hernia repair was the most performed surgical procedure, i.e. 54.9%. The overall mortality rate was 1.4%. 展开更多
关键词 Acute Intestinal Obstructions Surgery Cs Ref CI BAMAKO MALI
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Epidemiological, Clinical, and Therapeutic Characteristics of Acute Appendicitis at the Reference Health Center in Commune I of the District of Bamako Mali
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作者 Cheickna Tounkara Hamidou Samake +8 位作者 Daye Kaloga Bagayoko Barthélémy Poudiougou Modibo Togola Sékou Koumare Bakary Tientigui Dembele Alhassane Traore Pierre Adégné Togo Lassana Kante Zimogo Zié Sanogo 《Surgical Science》 2023年第10期637-645,共9页
Acute appendicitis is the most common abdominal surgical emergency. This work is a prospective study from January 2012 to December to analyze the epidemiological, clinical and therapeutic aspects of acute appendicitis... Acute appendicitis is the most common abdominal surgical emergency. This work is a prospective study from January 2012 to December to analyze the epidemiological, clinical and therapeutic aspects of acute appendicitis in the Cs ref of commune I of the district of Bamako and the results obtained were then compared with those reported in other countries. Our study included 72 patients. The appendectomy surgical specimens were the subject of an anatomical pathology study at Point G University Hospital in Bamako in Mali, 1.4% of cases of which were healthy. All our operated patients received antibiotics (mono or dual antibiotics) with a post-operative hospitalization duration of 1.5 (36 hours) days on average. We recorded 6 complications such as parietal suppuration, i.e. 8.33% of cases. No 5th day syndrome or late complications were noted. The average length of hospitalization was 36 hours. Abdominal ultrasound;used as an additional examination was carried out in 55 of our patients or 76.39% of cases. We have not recorded any deaths. Raising awareness among patients about the dangers of complications motivated patients to undergo surgery as soon as possible. 展开更多
关键词 Acute Appendicitis Epidemiology Clinic and Therapy Surgery Csref CI MALI
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Liver Abscesses in General Surgery at CsRef CI in Bamako Mali
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作者 Cheickna Tounkara Hamidou Samake +5 位作者 Bambaké Dembele Modibo Togola Bakary Tientigui Dembele Alhassane Traore Pierre Adégné Togo Lassana Kante 《Surgical Science》 2023年第9期590-597,共8页
Liver abscesses correspond to a newly formed cavity created by necrosis of the liver parenchyma induced by the pathogen. The aim of the present work was to study liver abscesses;determine the frequency;describe the cl... Liver abscesses correspond to a newly formed cavity created by necrosis of the liver parenchyma induced by the pathogen. The aim of the present work was to study liver abscesses;determine the frequency;describe the clinical and paraclinical aspects, therapeutic and evolutionary modalities;determine the follow-up of treatment in order to assess the cost of treatment in the Reference Health Center of Commune I of Bamako in Mali. This prospective study, involving 30 cases of liver abscess, took place over a period of 24 months from January 2015 to December 2016 in the general surgery department of the Cs Ref of commune I. The liver abscess is very often the consequence of amoebiasis which is rampant in the underprivileged population and it remains topical in surgical practice in Mali. Our hospital frequency was 0.081% with an average age of 34.40 years and extremes of 16 and 61 years;a sex ratio of 2.3 in favor of men. The main clinical signs were fever (56.7%), hepatalgia (73.3%) and hepatomegaly (26.7%). Hepatic collections objectified on abdominal ultrasound were located in the right lobe in 70% of cases and unique in 62%. Amebic serology carried out in 100% was negative in 20%;10% of cases had undergone surgical treatment. The consequences were simple for all our patients. The average cost of care, approximately 100,000 FCFA, was significantly higher than the minimum wage (28,460 FCFA) in Mali. 展开更多
关键词 Liver ABSCESS Guided Ultrasound Puncture Surgery BAMAKO MALI
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Towards Collaborative Robotics in Top View Surveillance:A Framework for Multiple Object Tracking by Detection Using Deep Learning 被引量:8
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作者 Imran Ahmed Sadia Din +2 位作者 Gwanggil Jeon Francesco Piccialli Giancarlo Fortino 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2021年第7期1253-1270,共18页
Collaborative Robotics is one of the high-interest research topics in the area of academia and industry.It has been progressively utilized in numerous applications,particularly in intelligent surveillance systems.It a... Collaborative Robotics is one of the high-interest research topics in the area of academia and industry.It has been progressively utilized in numerous applications,particularly in intelligent surveillance systems.It allows the deployment of smart cameras or optical sensors with computer vision techniques,which may serve in several object detection and tracking tasks.These tasks have been considered challenging and high-level perceptual problems,frequently dominated by relative information about the environment,where main concerns such as occlusion,illumination,background,object deformation,and object class variations are commonplace.In order to show the importance of top view surveillance,a collaborative robotics framework has been presented.It can assist in the detection and tracking of multiple objects in top view surveillance.The framework consists of a smart robotic camera embedded with the visual processing unit.The existing pre-trained deep learning models named SSD and YOLO has been adopted for object detection and localization.The detection models are further combined with different tracking algorithms,including GOTURN,MEDIANFLOW,TLD,KCF,MIL,and BOOSTING.These algorithms,along with detection models,help to track and predict the trajectories of detected objects.The pre-trained models are employed;therefore,the generalization performance is also investigated through testing the models on various sequences of top view data set.The detection models achieved maximum True Detection Rate 93%to 90%with a maximum 0.6%False Detection Rate.The tracking results of different algorithms are nearly identical,with tracking accuracy ranging from 90%to 94%.Furthermore,a discussion has been carried out on output results along with future guidelines. 展开更多
关键词 Collaborative robotics deep learning object detection and tracking top view video surveillance
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Photoic crystal nanobeam cavity devices for on-chip integrated silicon photonics 被引量:2
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作者 Daquan Yang Xiao Liu +3 位作者 Xiaogang Li Bing Duan Aiqiang Wang Yunfeng Xiao 《Journal of Semiconductors》 EI CAS CSCD 2021年第2期40-50,共11页
Integrated circuit(IC)industry has fully considered the fact that the Moore’s Law is slowing down or ending.Alternative solutions are highly and urgently desired to break the physical size limits in the More-than-Moo... Integrated circuit(IC)industry has fully considered the fact that the Moore’s Law is slowing down or ending.Alternative solutions are highly and urgently desired to break the physical size limits in the More-than-Moore era.Integrated silicon photonics technology exhibits distinguished potential to achieve faster operation speed,less power dissipation,and lower cost in IC industry,because their COMS compatibility,fast response,and high monolithic integration capability.Particularly,compared with other on-chip resonators(e.g.microrings,2D photonic crystal cavities)silicon-on-insulator(SOI)-based photonic crystal nanobeam cavity(PCNC)has emerged as a promising platform for on-chip integration,due to their attractive properties of ultra-high Q/V,ultra-compact footprints and convenient integration with silicon bus-waveguides.In this paper,we present a comprehensive review on recent progress of on-chip PCNC devices for lasing,modulation,switching/filting and label-free sensing,etc. 展开更多
关键词 PCNC integrated silicon photonics More-than-Moore LAB-ON-A-CHIP hybrid devices
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Fast Arithmetics Using Chinese Remaindering
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作者 George Davida Bruce Litow 《China Communications》 SCIE CSCD 2007年第4期45-47,共3页
In this paper,some issues concerning the Chinese remaindering representation are discussed.A new converting method is described. An efficient refinement of the division algorithm of Chiu,Davida and Litow is given.
关键词 WILL NCI Fast Arithmetics Using Chinese Remaindering 一刀
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引爆CS经营“新卖法”——第三只眼看买方市场下的生意经
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作者 严世华 《高科技与产业化》 2000年第1期40-42,共3页
学点“反求行销” 如今许多企业家都有这样的感觉:生意太难做了,顾客太挑剔了,赚钱的买卖太难找了。 这是客观事实。因为以过剩为标志的买方市场的到来,形成目前消费者对整个市场极度繁荣而眼花缭乱,再加上各种商品在技术、质量、价格... 学点“反求行销” 如今许多企业家都有这样的感觉:生意太难做了,顾客太挑剔了,赚钱的买卖太难找了。 这是客观事实。因为以过剩为标志的买方市场的到来,形成目前消费者对整个市场极度繁荣而眼花缭乱,再加上各种商品在技术、质量、价格等要素上的同质化而无从挑选。 展开更多
关键词 企业 经营策略 CS经营 市场营销
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Linac Beam Dynamics Code Benchmarking
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作者 Xuejun Yin Wolfgang Bayer Andrea Franchi 《Journal of Modern Physics》 2015年第8期1044-1050,共7页
The code benchmarking for hadron linac using the 3D Particle-In-Cell (PIC) code is an important task in the European framework “High Intensity Pulsed Proton Injector” (HIPPI). PARMILA and HALODYN are two of the code... The code benchmarking for hadron linac using the 3D Particle-In-Cell (PIC) code is an important task in the European framework “High Intensity Pulsed Proton Injector” (HIPPI). PARMILA and HALODYN are two of the codes involved in this work. Both of these codes have been developed and used for linac design and beam dynamics studies. In this paper, the simulation results of the beam dynamics were compared and analyzed. As predicted by two codes, the simulation results show some agreements. The physical design strategy which was adopted in two codes was also discussed. 展开更多
关键词 HADRON LINAC 3D PIC CODE BENCHMARK Beam Dynamics Simulation
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CS经营下一轮商战的“王牌“
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作者 严世华 《中国中小企业》 1999年第4期24-25,共2页
CS经营,是英文“CustomerSatisfactionManagement”之意,即“顾客满意经营”。它是为了获得顾客满意,把自己公司提供的商品、服务和企业形象等进行定期持续性的调查,并根据结果迅速改善顾客不满... CS经营,是英文“CustomerSatisfactionManagement”之意,即“顾客满意经营”。它是为了获得顾客满意,把自己公司提供的商品、服务和企业形象等进行定期持续性的调查,并根据结果迅速改善顾客不满意之处,以追求更高的顾客满意度的经... 展开更多
关键词 CS经营 市场占有率 顾客满意指标 广告促销 美容院 优质服务 市场份额 顾客满意度 忠诚客户 口碑效应
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CS经营:下一轮商战的“王牌”
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作者 严世华 《中外企业家》 1998年第9期28-29,共2页
CS经营,是英文“Customer Satisfaction Management”之意,即“顾客满意经营”。它是为了获得顾客满意,把自己公司提供的商品、服务和企业形象等进行定期持续性的调查,并根据结果迅速改善顾客不满意之处,以追求更高的顾客满意度的经营... CS经营,是英文“Customer Satisfaction Management”之意,即“顾客满意经营”。它是为了获得顾客满意,把自己公司提供的商品、服务和企业形象等进行定期持续性的调查,并根据结果迅速改善顾客不满意之处,以追求更高的顾客满意度的经营活动。它有别于CI设计,是于90年代兴起日美等国的一种全新的行销战略。 服务也是广告促销 如今商战,无外乎三招:广告、降价、促销。 观其效果,广告像注兴奋剂,只能热闹一阵; 展开更多
关键词 CS经营 广告促销 顾客满意度 顾客满意指标 企业形象 顾客不满意 行销战略 市场份额 市场占有率 CI设计
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Antimicrobial Characteristics of Untreated Wood: Towards a Hygienic Environment
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作者 Muhammad Tanveer Munir Hélène Pailhories +4 位作者 Matthieu Eveillard Florence Aviat Didier Lepelletier Christophe Belloncle Michel Federighi 《Health》 2019年第2期152-170,共19页
Wood, as a contact surface, has been used for centuries but is usually questioned because of its porosity and organic composition. It has natural antimicrobial properties and, hygienically, can stand the comparison wi... Wood, as a contact surface, has been used for centuries but is usually questioned because of its porosity and organic composition. It has natural antimicrobial properties and, hygienically, can stand the comparison with other materials such as plastic, glass and steel. In this review, we focused on potential microbe-inhibiting properties of wooden surfaces being used in hygienically important places like health institutes and food industries. This article addresses the questionable properties of untreated wood like hygroscopicity, porosity, roughness and chemical composition, and their relation to the hygienic and antimicrobial nature of this material. The other factors linked to the hygienic properties of wood, such as age, species and type of wood, have also been discussed. Our analysis of literature will create better understanding for acceptance of wood as a safety renewable resource. It also provides an outline for future research considering wood material in critical healthcare or food industries. 展开更多
关键词 WOOD ANTIMICROBIAL Characteristics PHYSICOCHEMICAL Properties
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Effect of a hydrogymnastics program on the serum levels of high-sensitivity C-reactive protein amongst elderly women
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作者 Javier Arturo Hall-López Paulina Yesica Ochoa-Martínez +5 位作者 Edgar Ismael Alarcón-Meza Fernando Israel Anaya-Jaramillo Ana María Miranda Botelho Teixeira José Moncada-Jiménez José Carlos Ferreira-Reis Estélio Henrique Martin Dantas 《Health》 2014年第1期80-85,共6页
The aim of this study was to evaluate the effect of a hydrogymnastics training program on highsensitivity C-reactive protein in elderly women. The subjects were randomly divided into the experimental group who partici... The aim of this study was to evaluate the effect of a hydrogymnastics training program on highsensitivity C-reactive protein in elderly women. The subjects were randomly divided into the experimental group who participates in the hydrogymnastics training program and the control group who was not involved in the training and remained sedentary. The serum levels of highsensitivity C-reactive protein were determined by immunoturbidimetry using C-reactive protein (CRP), the training protocol consisted of hydrogymnastics sessions 5 times per week during 12 weeks of intervention, executed in a pool of 1.3 meters divided into three phases: a 10-minute warm-up, 30 minutes of aerobic exercise at 50%-60% of maximum heart rate (monitored by heart rate monitor) and a 10-minute cool down. As a statistical method to compare the results between groups of variables pre and post training, the analysis of variance (ANOVA) mixed 2 × 2 (group × measurement) test was done using SPSS version 17. The founds showed significant changes in the level of high-sensitivity C-reactive protein, and a greater percentage decrease of hs-CRP (Δ%= -37%, p = 0.001) in the experimental group in relation to the control group.Therefore, it can be inferred that a hydrogymnastics program is effective in reducing the metabolic rate of high-sensitivity C-reactive protein amongst elderly women. 展开更多
关键词 ELDERLY HS-CRP Hydrogymnastics
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Adsorption onto Activated Carbon Fiber Cloth and Electrothermal Desorption of Volatile Organic Compound(VOCs):A Specific Review 被引量:17
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作者 Pierre Le Cloirec 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2012年第3期461-468,共8页
A general research program, focusing on activated carbon fiber cloths (ACFC) and felt for environmental protection was performed. The objectives were multiple: (i) a better understanding of the adsorption mecha- ... A general research program, focusing on activated carbon fiber cloths (ACFC) and felt for environmental protection was performed. The objectives were multiple: (i) a better understanding of the adsorption mecha- nisms of these kinds of materials; (ii) the specification and optimization of new processes using these adsorbents; (iii) the modeling of the adsorption of organic pollutants using both the usual and original approaches; (iv) applications of ACFC in industrial processes. The general question was: how can activated carbon fiber cloths and felts be used in air treatment processes for the protection of environment. In order to provide an answer, different approaches were adopted. The materials (ACFC) were characterized in terms of macro structure and internal porosity. Specific studies were performed to get the air flow pattern through the fabrics. Head loss data were generated and modeled as a fi.mction of air velocity. The performances of ACF to remove volatile organic compounds (VOCs) were approached with the adsorption isotherms and breakthrough curves in various operating conditions. Regenera- tion by Joule effect shows a homogenous heating of adsorber modules with rolled or pleated layers. Examples of industrial developments were presented showing an interesting technology for the removal of VOCs, such as dichloromethane, benzene, isopropyl alcohol and toluene, alone or in a complex mixture. 展开更多
关键词 activated carbon fiber cloth ADSORPTION volatile organic compounds electrothermal desorption REGENERATION
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Identification and Expression of Some Plant Cell Wall-Degrading Enzymes Present in Three Ontogenetics Stages of Thecaphora frezii, a Peanut (<i>Arachis hypogaea</i>L.) Pathogenic Fungus
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作者 Néstor Walter Soria Ana Cristina Figueroa +3 位作者 María Soledad Díaz Valeria Roxana Alasino Pablo Yang Dante Miguel Beltramo 《American Journal of Plant Sciences》 2022年第1期1-22,共22页
Peanuts can be affected by the presence of pathogenic microorganisms. The fungus <i>Thecaphora frezii</i> (<i>T. frezii</i>), which belongs to the taxonomic class Ustilaginomycetes, is the caus... Peanuts can be affected by the presence of pathogenic microorganisms. The fungus <i>Thecaphora frezii</i> (<i>T. frezii</i>), which belongs to the taxonomic class Ustilaginomycetes, is the causal agent of the disease known as “peanut smut”. The life cycle of this fungus includes three stages, namely teliospores, basidiospores and hyphae. In the hyphae stage, infection occurs in the peanut plant, which requires the involvement of some enzymes secreted by the fungus. These include the Plant Cell Wall-Degrading Enzymes (PCWDEs), which degrade various polysaccharides. This study aimed to identify the presence of transcript for enzymes belonging to the PCWDEs from three stages of <i>T. frezii</i>. For this, total RNA was extracted from the three ontogenetic stages of <i>T. frezii</i>. These samples were analyzed using an RNA-Seq approach and some transcripts were quantified using Real Time PCR. The analysis of the data provided by the RNA-Seq of the three <i>T. frezii</i> stages, it was possible to identify some transcripts that could encode enzymes compatible with polysaccharides degradation that are part of the plant cell wall. In <i>T. frezii</i> transcriptome, 40 deduced proteins would be enzymes with functions of PCWDEs were identified. They were divided into 27 glycoside hydrolases;two polysaccharide lyases;three carbohydrate esterases and eight enzymes with auxiliary activities. In addition, the fungal SNF1 gene was identified whose activity could be affected by high glucose level, and indirectly influence the levels of some PCWDEs. The analysis of the PCWDEs could help to understand part of the fungal infection process and possibly find substances that can control its development. 展开更多
关键词 Carbohydrate-Degrading Enzymes Phytopathogenic Fungi Smut Fungi TRANSCRIPTOME Thecaphora frezii
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Prediction of SARS-CoV-2 hosts among Brazilian mammals and new coronavirus transmission chain using evolutionary bioinformatics
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作者 Luciano Rodrigo Lopes Giancarlo de Mattos Cardillo +3 位作者 Natalia Carvalho de Lucca Pina Antonio Carlos da Silva Junior Silvana Kertzer Kasinski Paulo Bandiera-Paiva 《Animal Diseases》 2022年第1期16-26,共11页
Severe acute respiratory syndrome coronavirus(SARS-CoV)and SARS-CoV-2 are thought to transmit to humans via wild mammals,especially bats.However,evidence for direct bat-to-human transmission is lacking.Involvement of ... Severe acute respiratory syndrome coronavirus(SARS-CoV)and SARS-CoV-2 are thought to transmit to humans via wild mammals,especially bats.However,evidence for direct bat-to-human transmission is lacking.Involvement of intermediate hosts is considered a reason for SARS-CoV-2 transmission to humans and emergence of outbreak.Large biodiversity is found in tropical territories,such as Brazil.On the similar line,this study aimed to predict potential coronavirus hosts among Brazilian wild mammals based on angiotensin-converting enzyme 2(ACE2)sequences using evolutionary bioinformatics.Cougar,maned wolf,and bush dogs were predicted as potential hosts for coronavirus.These indigenous carnivores are philogenetically closer to the known SARS-CoV/SARS-CoV-2 hosts and presented low ACE2 divergence.A new coronavirus transmission chain was developed in which white-tailed deer,a susceptible SARS-CoV-2 host,have the central position.Cougar play an important role because of its low divergent ACE2 level in deer and humans.The discovery of these potential coronavirus hosts will be useful for epidemiological surveillance and discovery of interventions that can contribute to break the transmission chain. 展开更多
关键词 SARS-CoV-2 Angiotensin-converting enzyme 2 CORONAVIRUS Brazilian mammals White-tailed deer
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CS经营:下一轮商战的“王牌”
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作者 严世华 《改革与开放》 1998年第11期34-36,共3页
CS经营,是英文"Customer SatisfactionManagement"之意,即"顾客满意经营"。它是为了获得顾客满意,把自己公司提供的商品、服务和企业形象等进行定期持续性的调查,并根据结果迅速改善顾客不满意之处,以追求更高的顾... CS经营,是英文"Customer SatisfactionManagement"之意,即"顾客满意经营"。它是为了获得顾客满意,把自己公司提供的商品、服务和企业形象等进行定期持续性的调查,并根据结果迅速改善顾客不满意之处,以追求更高的顾客满意度的经营活动。它有别于CI设计,是兴起于九十年代日美等国的一种全新的行销战略。本文就CS经营中如何搞好优质服务、 展开更多
关键词 优质服务 顾客不满意 经营活动 广告促销 九十年代 顾客满意度 顾客满意经营 商战 顾客满意指标 企业形象
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CS 经营,下一轮商战的王牌
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作者 严世华 《科技智囊》 1998年第4期19-22,共4页
CS 全称 CS 行销战略,是英文"Customer Satisfation"的简称,中文即"顾客满意"之意,它有别于 CI 设计,是九十年代兴起于日美等国的一种全新的行销战略,它从顾客需求出发,建立企业以顾客为导向,通过优质服务使顾客满... CS 全称 CS 行销战略,是英文"Customer Satisfation"的简称,中文即"顾客满意"之意,它有别于 CI 设计,是九十年代兴起于日美等国的一种全新的行销战略,它从顾客需求出发,建立企业以顾客为导向,通过优质服务使顾客满意度最大化,从而对企业产生忠诚、使其市场占有率稳定成长和效益倍增的经营管理革新系统。1996年,严世华先生创办了我国第一家 CS 经营运作室,经过他两年来的商战实践,成效卓著。下面是他就 CS 经营中如何搞好优质服务?用什么方式对待顾客?怎样培养忠诚客户等问题,发表的几点体会。 展开更多
关键词 优质服务 顾客满意指标 行销战略 顾客满意度 经营管理革新 商战 广告促销 经营运作 忠诚客户 企业
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Evolution of a Holocene banner bank controlled by morphodynamics and structural setting of a macrotidal coast: Saint-Brieuc Bay (NW-Europe)
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作者 Kalil Traoréa David Menier +6 位作者 Erwan Gensac Pascal Le Roy Clément Lambert Paul Bessin Kevin Pedoja Anne Duperret Romain Le Gall 《Geoscience Frontiers》 SCIE CAS CSCD 2021年第5期166-181,共16页
The morphology and internal structure of the Horaine Bank(Bay of Saint-Brieuc,NW France)are described based on multibeam echosounder and high-resolution seismic datasets coupled with vibro-core data.The Horaine Bank s... The morphology and internal structure of the Horaine Bank(Bay of Saint-Brieuc,NW France)are described based on multibeam echosounder and high-resolution seismic datasets coupled with vibro-core data.The Horaine Bank shows large-scale bedforms in the lee of a submerged rocky shoal,which allowed defining it as a Banner Bank.The internal structure of the sandbank reveals four seismic units(U1-U4)on a Cambrian basement(U0).The basal unit U1 is interpreted as reworked lowstand fluvial sediments those infilled micro incised valleys during a rise in sea level.This unit is overlain by paleo-coastal barrier sand-spit(U2)whose development was controlled by swell in the context of a rapid rise in sea level.The successive prograding unit(U3)is interpreted as flooding deposits in continuity with unit U2.The unit U4 is characterized by oblique reflectors oriented in two opposite directions.This last unit,dated post 3500 yr BP,corresponds to migrating dunes superimposed on the bank and observable in the high-resolution bathymetric data.The strong correlation between tidal currents and the apparent clockwise migration of dune crests suggests the presence of a tidal gyre controlling the present-day dynamics of most of the Horaine bank dunes.This study proposes a new model for the construction of banner banks characterized by the gradual transition of a sand spit to a banner bank during marine transgression and ensuing hydrodynamic variability. 展开更多
关键词 Sand banks Banner bank Holocene climate GEOMORPHOLOGY Sea level rise Tidal gyre
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