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Epidemiological and Anatomo Path Ological Aspects of Stomach Cancers at the Koutiala District Hospital

Surgical Science 2024年第7期15卷 444-450页

作者： Mahamadou Coulibaly Souleymane Sanogo samuel kletigui dembélé Moussa Diassana Brehima Ballo Cheick Aka Waigalo Bréhima Bengaly Birama Togola Drissa Traoré Nouhoum Ongoiba Faculty of Medicine University of Science Technique and Technologies of Bamako Bamako Mali Department of Surgery Koutiala Hospital Bamako Mali Department of Surgery University Hospital Center Point G Bamako Mali Department of Surgery Tominian Hospital Tominian Mali Department of Surgery Sikasso Hospital Sikasso Mali

Aim: This paper aims to evaluate the epidemiological and pathological aspects of stomach cancer at Koutiala District Hospital. Methods: This was a retrospective study carried out in the General Surgery Department of the Koutiala District Hospital Health Centre. The records of patients admitted for stomach cancer in the period from August 1, 2017 to December 31, 2022 were collected. Patients who underwent surgery for stomach cancer were included in the study. Patients who had not undergone surgery were excluded. Results: We collected records from 40 patients operated on for stomach cancer. The median age was 58.4 years ± 5.7. Men were in the majority with 72.5% The sex ratio was 2.6. The incidence rate of stomach cancer in the general population in the circle was 4.9 cases per 100,000 population. Patients had a history of gastric ulcer in 90%, Helicobacter pylori infection in 47.5% and a notion of excessive salt consumption in 47.5%. The median duration of disease progression was 5 years ± 2.3. The seat was antro-pyloric in 77.5%. The cancer was ulcerative budding in 23 patients. Adenocarcinoma was the histological type in all patients. The cancer was classified as stage III in 30 cases and stage IV in 10 cases. Palliative surgical treatment was the most performed (47.5%). Postoperative morbidity was 15% and mortality was 42.5% at one year. Conclusion: Stomach cancer is common in the ward. Most patients consult at the stage of metastasis. Palliative surgery remains the most practical. Postoperative morbidity and mortality is very high.

关键词： Epidemiology Stomach Cancer Koutiala

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Incidences and Risk Factors for Surgical Site Infections in Koutiala, Mali

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Surgical Science 2024年第7期15卷 465-469页

作者： Mahamadou Coulibaly Moussa Diassana Issiaka Diarra Bréhima Bengaly Birama Togola Drissa Ouattara Souleymane Sanogo samuel kletigui dembélé Cheick Aka Waigalo Brehima Ballo Drissa Traoré Nouhoum Ongoiba Faculty of Medicine University of Science Technique and Technologies of Bamako Bamako Mali Department of Surgery Koutiala Hospital Koutiala Mali Department of Surgery Sikasso Hospital Sikasso Mali Dpartement de Chirurgie Hpital Commune I Bamako Mali Department of Surgery University Hospital Center Point G Bamako Mali Department of Surgery Tominian Hospital Tominian Mali

Purpose: This paper aims to assess the incidences and risk factors for surgical site (ISO) infections in the general surgery department of the Koutiala District Hospital. Patients and Methods: This was a prospective and descriptive study from August 1, 2017 to October 31, 2020 involving all patients who underwent laparotomy in the general surgery department of the Koutiala District Hospital. Patients who were not operated on and who did not have a laparotomy were not included. Age, sex, frequency, patient history, National Nosocomial Infections Surveillance (NNIS) index, time to occur, bacteriological test results and course of infection were analyzed. Results: Fifty patients were registered. The average age was 34.2 ± 21.2 years old. Eleven patients were 60 years old or older. The hospital incidence rate was 4.3% and the community incidence rate was 6.1 cases per 100,000 population. The concept of smoking was noted in 15 patients. Patients were operated on in emergency 84% of cases. Peritonitis was the most common initial lesion with 32% of cases. Our patients had an NNIS index greater than 0 in 84% of cases. The time to develop infection from the surgical site was less than 3 days in 8 patients (16% of cases). Depending on the depth of the infection, it was superficial (cutaneous) in 39 patients (78%) and deep (subcutaneous and organic) in 11 patients (22%). Escherichia coli was the most common germ with 72% followed by staphylococcus aureus at 24%. We noted 22% morbidity. The median length of hospitalization was 9 ± 2.2 days. Conclusion: ISO is common in our service. Prevention and mastery require knowledge of risk factors.

关键词： Surgical Site Infection Incidence Risk Factors Surgery

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Epidemiological and Anatomo Path Ological Aspects of Stomach Cancers at the Koutiala District Hospital

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Surgical Science（外科学） 2024年第7期 444页

作者： Mahamadou Coulibaly Souleymane Sanogo samuel kletigui dembélé Moussa Diassana Brehima Ballo Cheick Aka Waigalo Bréhima Bengaly Birama Togola Drissa Traoré Nouhoum Ongoiba

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Incidences and Risk Factors for Surgical Site Infections in Koutiala, Mali

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Surgical Science（外科学） 2024年第7期 465页

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The influence of various grease compositions and silver nanoparticle additives on electrically induced rolling-element bearing damage

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Friction 2024年第4期12卷 796-811页

作者： samuel BOND Robert l.JACKSON German MIllS Department of Chemistry and Biochemistry Auburn UniversityAuburn 36849-5412USA Department of Mechanical Engineering Auburn UniversityAuburn 36849-5412USA

leakage currents accelerate surface degradation of metal contacts via small scale arcing across lubricating films,but recent observations suggest that metallic nanoparticle additives in lubricants may be useful to improve contact *** findings prompted a study that examined electrically induced surface pitting of steel contacts in the presence of several lubricating greases including some containing nanometer-sized colloidal silver(Ag)*** rolling sphere-on-disk experiments were conducted under electro-tribological loads employing polyurea greases derived from mineral and synthetic base oils with and without *** forces and electrical resistance were monitored continuously during the tests;surface changes were characterized by means of optical spectroscopy,stylus profilometry,and scanning electron microscopy(SEM)including compositional analysis using energy dispersive spectroscopy(EDS).The observations demonstrate that surface pitting induced by arcing occurs mainly at the points were the rolling motion changes direction and that eroded metal is deposited along the wear ***-sized pits are formed which contain carbon and oxygen indicating that arcing causes decomposition of the hydrocarbon *** findings indicate a significant inhibition of pitting is induced by the Ag nanoparticles;some greases containing other additives exhibit a similar,although less pronounced,effect.

关键词： electric motor bearings wheel bearings electric vehicles arcing electrically induced bearing damage pitting leakage current stray current

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Exposure to sublethal concentration of flupyradifurone alters sexual behavior and cuticular hydrocarbon profile in Heriades truncorum,an oligolectic solitary bee

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Insect Science 2024年第3期31卷 859-869页

作者： samuel Boff Manfred Ayasse Institute of Evolutionary Ecology and Conservation Genomics Ulm UniversityUlmGermany

The aboveground oligolectic bee,Heriades truncorum,is a particularly good model for studying the impact of pesticides on sexual communication,since some aspects of its mating behavior have previously been *** have tested(1)the interference of the pesticide flupyradifurone on male precopulatory behavior and male mating partner preferences,(2)the way that the pesticide interferes in male quality assessment by the female,and(3)the effects of the pesticide on the chemical compounds in the female *** exposed bees of both sexes to a sublethal concentration of *** behaviors were registered in a mating arena with two females(one unexposed and one exposed)and one male(either unexposed or exposed).Unexposed males were quicker to attempt to *** also impacted precopulatory behavior and male quality assessment by *** approached unexposed females more quickly than insecticideexposed *** exposed to insecticide produced lower amounts of some cuticular hydrocarbons(sex pheromone candidates)and appeared less choosy than unexposed *** findings suggest that insecticide exposure affects sexual communication,playing a role both in male preference and in male quality assessment by the female.

关键词： courtship display female choice flupyradifurone male partner preference sex communication sublethal effects

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Ethical decision-making in older drivers during critical driving situations: An online experiment

Journal of Intelligent and Connected Vehicles

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Journal of Intelligent and Connected Vehicles 2024年第1期7卷 30-37页

作者： Amandeep Singh Sarah Yahoodik Yovela Murzello samuel Petkac Yusuke Yamani Siby samuel Department of Systems Design Engineering University of WaterlooWaterloo N2L 3G1Canada Department of Psychology Old Dominion UniversityNorfolk 23529USA

The present study examined the impact of aging on ethical decision-making in simulated critical driving scenarios.204 participants from North America,grouped into two age groups(18–30 years and 65 years and above),were asked to decide whether their simulated automated vehicle should stay in or change from the current lane in scenarios mimicking the Trolley *** participant viewed a video clip rendered by the driving simulator at Old Dominion University and pressed the space-bar if they decided to intervene in the control of the simulated automated vehicle in an online *** hierarchical models were used to analyze participants’responses,response time,and acceptability of utilitarian ethical *** results showed significant pedestrian placement,age,and time-to-collision(TTC)effects on participants’ethical *** pedestrians were in the right lane,participants were more likely to switch lanes,indicating a utilitarian approach prioritizing pedestrian *** participants were more likely to switch lanes in general compared to older *** results imply that older drivers can maintain their ability to respond to ethically fraught scenarios with their tendency to switch lanes more frequently than younger counterparts,even when the tasks interacting with an automated driving *** current findings may inform the development of decision algorithms for intelligent and connected vehicles by considering potential ethical dilemmas faced by human drivers across different age groups.

关键词： ethical decision making age-differences utilitarianism moral dilemmas driver behavior simulated driving bayesian hierarchical model

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Fish-on-Chips:unveiling neural processing of chemicals in small animals through precise fluidic control

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Neural Regeneration Research 2024年第11期19卷 2351-2353页

作者： samuel K.H.Sy Ho Ko Division of Neurology Department of Medicine and TherapeuticsFaculty of MedicineThe Chinese University of Hong KongShatinNew TerritoriesHong Kong Special Administrative RegionChina li Ka Shing Institute of Health Sciences Faculty of MedicineThe Chinese University of Hong KongShatinNew TerritoriesHong Kong Special Administrative RegionChina Department of Electrical and Electronic Engineering Faculty of EngineeringThe University of Hong KongPok Fu LamHong Kong IslandHong Kong Special Administrative RegionChina Advanced Biomedical Instrumentation Center Hong Kong Science ParkPak Shek KokNew TerritoriesHong Kong Special Administrative RegionChina Margaret K.l.Cheung Research Center for Management of Parkinsonism Faculty of MedicineThe Chinese University of Hong KongShatinNew TerritoriesHong Kong Special Administrative RegionChina lau Tat-chuen Research Center of Brain Degenerative Diseases in Chinese Faculty of MedicineThe Chinese University of Hong KongShatinNew TerritoriesHong Kong Special Administrative RegionChina Gerald Choa Neuroscience Institute The Chinese University of Hong KongShatinNew TerritoriesHong Kong Special Administrative RegionChina

Precise chemical cue presentation alongside advanced brainwide imaging techniques is important to the study of chemosensory processing in ***,the dynamic nature of chemical-carrying media,such as water or air,poses a significant challenge for delivering highly-controlled chemical flow to an animal ***,contact-based cue manipulation and delivery easily shift the position of the animal subject,which is often undesirable for high-quality brain ***,more advanced interfacing tools that align with the diverse range of body part sizes of an animal,ranging from micrometer-scale neurons to meter-long limbs,are much *** is particularly crucial when dealing with dimensions that are beyond the reach of conventional experimental tools.

关键词： dealing precise sizes

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Soluble p75 neurotrophic receptor as a reliable biomarker in neurodegenerative diseases: what is the evidence?

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Neural Regeneration Research 2024年第3期19卷 536-541页

作者： Georges Jourdi samuel Fleury Imane Boukhatem Marie lordkipanidzé Research Center Montreal Heart InstituteMontrealQCCanada Faculty of Pharmacy Universitéde MontréalMontrealQCCanada UniversitéParis Cité INSERMInnovative Therapies in HaemostasisParisFrance Service d’Hématologie Biologique AP-HPHôpital LariboisièreParisFrance

Neurodegenerative diseases are often misdiagnosed,especially when the diagnosis is based solely on clinical *** p75 neurotrophic receptor(p75^(NTR))has been studied as an index of sensory and motor nerve development and *** cleavable extracellular domain(ECD)is readily detectable in various biological fluids including plasma,serum and *** is evidence for increased p75NTR ECD levels in neurodegenerative diseases such as Alzheimer’s disease,amyotrophic lateral sclerosis,age-related dementia,schizophrenia,and diabetic *** p75^(NTR) ECD could be used as a biomarker for diagnosis and/or prognosis in these disorders,and whether it could potentially lead to the development of targeted therapies,remains an open *** this review,we present and discuss published studies that have evaluated the relevance of this emerging biomarker in the context of various neurodegenerative *** also highlight areas that require further investigation to better understand the role of p75^(NTR) ECD in the clinical diagnosis and management of neurodegenerative disorders.

关键词： Alzheimer’s disease amyotrophic lateral sclerosis biomarker dementia diabetic neuropathy nerve growth factor receptor(NGFR) neurodegeneration p75^(NTR) schizophrenia

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Flame Synthesis of Zr/ZSM-5 Catalysts with Tunable Acidity for the Oxidative Dehydrogenation of Propane to Propene

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Journal of Thermal Science 2024年第1期33卷 268-283页

作者： DANIEl samuel FONZEU MONGUEN Cedric Karel WU lingnan TIAN Zhenyu Institute of Engineering Thermophysics Chinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Tuning the surface acidity of ZSM-5 catalyst is essential to achieve desired propene selectivity and *** several ratios of Zr were utilized to modify ZSM-5 via flame spray pyrolysis technique coupled with a pulse spray evaporation *** interaction between Zr and ZSM-5 in the flame influenced the physicochemical and acidity properties of the Zr/*** increasing Zr ratio in ZSM-5 shows coated layers of irregular nano-sized Zr with an increase in crystallite sizes due to the synergetic effect between Zr and *** surface chemical analysis revealed increased lattice oxygen on the Zr modified ZSM-5(1:4) sample compared to other *** acidity analysis revealed the lewis and Br?nsted acid distribution in the weak and medium acid sites on the catalyst ***,the increase in Zr loading decreased the concentration of Br?nsted acid sites and tuned the catalyst surface to more lewis acidity,promoting propene selectivity and hindering the over-oxidation of *** modified ZSM-5 catalysts were examined in a fixed bed reactor within 300℃-700℃ at a gas hourly space velocity(GHSV) of 6000 ml·g(catalysts)^(-1)·h^(-1) for the oxidative dehydrogenation of propane(ODHP) to *** the catalysts,Zr/ZSM-5(1:4) exhibited the best propene yield, with 57.19% propane conversion and 75.54% selectivity to propene and the highest *** work provides a promising strategy for tuning the surface acidity of ZSM-5 with Zr for ODHP applications.

关键词： flame synthesis Zr modified ZSM-5 catalyst ODHP surface acidity lattice oxygen

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