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Accidental Ing.stion of Nitric Acid in an Ag.icultural Company. A Case Study.and Literature Review

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Occupational Diseases and Environmental Medicine 2024年第1期12卷 21-27页

作者： Asséga.Sy.vain Sag.a Mame Thioro Aïssatou Fall Mossane Dominique Ndour Sidy.Diallo Société de Cultures Lég.mières (SCL) Saint-Louis Sénégal West Africa Farms (WAF) Yamane Louga Sénégal International Committee of The Red Cross Dakar Sénégal Saint-Louis Reg.onal Hospital Center Saint-Louis Sénégal

Introduction: Thoug. common in society. caustic accidental ing.stion is rare in the ag.icultural industry. This study.describes a case of ing.stion of nitric acid used as an ag.icultural fertilizer by.an ordinary.worker at the Société de Cultures Lég.mières. Clinical Case: This is a 33-y.ar-old unschooled woman who ing.sted a sip of nitric acid from an abandoned labelled acid canister near a farming.plot of land. She showed a burn of the oral cavity.with a bleeding.tablecloth and an intense retrosternal pain. The duodenal oesophag.s fibroscopy.screening.that was carried out 18 hours after the accident, revealed an esophag.tis class 2b. The tests revealed no anomalies. Fifteen (15) day. after the accident, the FOg. was normal. Following.an 8-month-follow up, no sig.s of stenosis or deg.neration were noted. Conclusion: The accidental ing.stion of nitric acid is rare in adult. Its treatment is mainly.sy.ptomatic and aims at preserving.vital functions without directly.fig.ting.the ing.sted substance off. The rig.t actions must be integ.ated into the 15-minute Health and Safety.awarenesssessions for optimum pre-hospital manag.ment. The hospital evaluation is mandatory.and is carried out thanks to the dig.stive endoscopy. which is still relevant in this indication, but is completed by.the thoraco-abdominal CT. The latter is very.sensitive the transmural necrosis diag.osis.

关键词： Accident Ag.iculture Caustic Fibroscopy Senega.

Trends in colorectal cancer incidence according.to an increase in the number of colonoscopy.cases in Korea

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World Journal of ga.trointestinal Oncolog. 2024年第1期16卷 51-60页

作者： ga.Hee Kim y.ong.Chan Lee Tae Jun Kim Sung.Noh Hong.Dong.Ky.ng.Chang.y.ung.Ho Kim Dong.Hoon y.ng.Chang.Mo Moon Ky.nga.Kim Hy.n g.n Kim Eun-Ran Kim Division of ga.troenterolog. Department of Internal MedicineAsan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505South Korea Department of Dig.tal Health Samsung Advanced Institute for Health Science and TechnologySungkyunkwan University School of MedicineSeoul 06351South Korea Division of ga.troenterolog. Department of Internal MedicineSamsung Medical CenterSungkyunkwan University School of MedicineSeoul 06351South Korea Division of ga.troenterolog. Department of Internal MedicineEwha Womans UniversitySeoul 07985South Korea Biomedical Statistics Center Samsung Medical CenterSeoul 06351South Korea Division of ga.troenterolog. Department of Internal MedicineSoonchunhyang University College of MedicineSeoul 04401South Korea

BACKg.OUND The incidence of colorectal cancer(CRC)and preinvasive CRC(e.g.,early.colon cancer and advanced adenoma)is g.adually.increasing.in several *** To evaluate the trend in incidence of CRC and preinvasive CRC according.to the increase in the number of colonoscopies performed in *** This retrospective cohort study.enrolled Korean patients from 2002 to 2020 to evaluate the incidence of CRC and preinvasive CRC,and assess the numbers of diag.ostic colonoscopies and colonoscopic ***-related complications by.ag. g.oup were also *** The incidence of CRC showed a rapid increase,then decreased after 2012 in the 50-75 y.ar-ag. *** the study.period,the rate of incidence of preinvasive CRC increased at a similar level in patients under 50 and 50-75 y.ars of *** 2009,the increase has been rapid,showing.a pattern similar to the increase in *** rate of colonoscopic poly.ectomy.in patients ag.d under 50 was similar to the rate in patients over 75 y.ars of ag. after *** rate of complications after colonoscopy.and related deaths within 3 mo was hig. for those over 75 y.ars of *** The diag.osis of preinvasive CRC increased with the increase in the number of colonoscopies *** the risk of colonoscopy.related hospitalization and death is hig. in the elderly.if early.lesions at risk of developing.CRC are diag.osed and treated under or at the ag. of 75,colonoscopy.related complications can be reduced for those ag.d 76 y.ars or over.

关键词： Colorectal cancer Preinvasive colorectal cancer Colorectal poly.ectomy Colonoscopy

土工织物加固土质坝堤加高工程的离心模型试验研究

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岩土工程学报 2024年第S1期46卷 112-116页

作者：李笑琳张嘎清华大学水利水电工程系北京100084

土工织物是一种广泛用于边坡加固的合成材料,但土工织物在土质坝堤加高工程中尚未得到合理应用。针对水位变动条件下土工织物加固的加高土质坝堤进行了离心模型试验,观测了加高坝堤的变形破坏响应过程。试验结果表明,土工织物加固的加... 详细信息

土工织物是一种广泛用于边坡加固的合成材料,但土工织物在土质坝堤加高工程中尚未得到合理应用。针对水位变动条件下土工织物加固的加高土质坝堤进行了离心模型试验,观测了加高坝堤的变形破坏响应过程。试验结果表明,土工织物加固的加高土质坝堤的破坏呈现出新旧坝堤各异的特点,新旧坝堤呈现出不同的破坏特性,离土工织物较远的旧坝堤先发生破坏,土工织物加固的新坝堤的破坏发生较晚,且呈现从上到下渐进发展的特性;加高坝堤的最终破坏是由变形局部化和局部破坏相互耦合渐进发展导致的;土工织物分为加固段和约束段,在约束段坝堤给土工织物提供约束力,在加固段土工织物限制了坝堤的变形,土工织物的加固机理是将坝堤深部的约束力传递到坝堤表面,从而增强了坝堤浅层的抗滑能力;水位变动引起坝堤的变形增加,土工织物的加固作用也随之增强。

关键词：坝堤加高土工织物离心模型试验水位变动

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囊玛艺术新论

西藏研究 2024年第3期 66-76,M0005,M0006页

作者：觉嘎洛金宝西藏大学艺术学院拉萨850000

囊玛是一种集歌、舞、乐为一体的西藏传统表演艺术,而囊玛吉度是以囊玛艺术的实践为主要业务的行会组织。作为群众自发形成的社团组织,囊玛吉度形成背景和艺人来源具有多元化,其使用的乐器和表演的典目具有多样性。囊玛的表现内容主要... 详细信息

囊玛是一种集歌、舞、乐为一体的西藏传统表演艺术,而囊玛吉度是以囊玛艺术的实践为主要业务的行会组织。作为群众自发形成的社团组织,囊玛吉度形成背景和艺人来源具有多元化,其使用的乐器和表演的典目具有多样性。囊玛的表现内容主要包括爱情、时事、祈愿、赞颂、讽刺等内容,大多与不同时期的社会生活、观念意识等关联密切。在囊玛曲目中,有部分歌词采用了仓央嘉措的诗作,汉文关联表达和双关语也得到了广泛运用。

关键词：传统音乐囊玛囊玛吉度曲目

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卜形岔管水压试验结构受力分析

水电站机电技术 2024年第9期47卷 82-84,169页

作者：原嘎嘎中国水利水电第十四工程局有限公司云南昆明650041

针对某水电站工程项目岔管打压过程中出现的Vonmises等效应力值过高的问题,通过SolidWorks软件进行建模,导入ANSy.软件进行网格化有限元模拟打压工况分析,分析了岔管在施加1MPa、2MPa、3MPa压力下的应力应变情况,并与实际打压数据作对比... 详细信息

针对某水电站工程项目岔管打压过程中出现的Vonmises等效应力值过高的问题,通过SolidWorks软件进行建模,导入ANSy.软件进行网格化有限元模拟打压工况分析,分析了岔管在施加1MPa、2MPa、3MPa压力下的应力应变情况,并与实际打压数据作对比,最终得出了钢岔管在加强肋与圆钢交接处产生应力集中现象。计算结果与实际水压试验发生应力偏高位置吻合且计算数值与实际数值存在偏差较小,数据基本吻合。因此该岔管不满足设计压力值4.68MPa水压试验无法达到设计要求压力值5.85MPa。最终得出结论:需对岔管进行补强设计。

关键词：水压试验壳单元 Vonmises等效应力屈服强度泊松比弹性模量

数字流域模型淤地坝模块改进及减水减沙效益评估

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应用基础与工程科学学报 2024年第2期32卷 301-313页

作者：张玍傅旭东孙凯王晨沣清华大学水沙科学与水利水电工程国家重点实验室北京100084

淤地坝具有重要的水土保持作用,但其减水减沙效益的科学评估仍存在困难.一方面,淤地坝减水减沙的物理机制仍难以刻画;另一方面,观测资料有限且难以获取.以概化淤地坝卧管及溢洪道等部分的泄流机制及整体水沙调控机制为基础,改进和检验... 详细信息

淤地坝具有重要的水土保持作用,但其减水减沙效益的科学评估仍存在困难.一方面,淤地坝减水减沙的物理机制仍难以刻画;另一方面,观测资料有限且难以获取.以概化淤地坝卧管及溢洪道等部分的泄流机制及整体水沙调控机制为基础,改进和检验了数字流域模型的淤地坝模块,应用改进后的模型模拟皇甫川流域水沙过程并评估淤地坝减水减沙效益.研究结果表明:不考虑淤地坝的情况下,模型对淤地坝数量较少的近似自然状态期(1979~1986年)适用性较好,而对淤地坝数量较多的受扰状态期(2007~2012年)适用性较差,水沙模拟值明显高于实测值.考虑淤地坝的物理机制后,与原模型相比,除个别年份外,改进后的模型对受扰状态期水沙过程的模拟精度具有明显的提高,其逐日流量NSE(Nash-Sutcliffe效率系数)从-51.085~0.450提高到0.134~0.802,逐日输沙率NSE从-56.740~0.390提高到0.066~0.857.使用改进后的模型计算得受扰状态期淤地坝平均拦水量为0.142×10^(8)m^(3),减水效益为40.9%;平均拦沙量为0.050×10^(8)t,减沙效益为50.3%.研究成果可为认识淤地坝调控水沙物理机制提供模型支撑和为淤地坝建设规划提供科学指导.

关键词：淤地坝减水减沙减水减沙效益水土保持数字流域模型分布式水沙模型皇甫川

Study.on the Treatment of Reusable Care Equipment in Public and Private Dental Practices in the City.of Conakry

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Open Journal of Stomatolog. 2024年第8期14卷 351-361页

作者： Mag.a Condé Aly.Badara Nabé Moussa Doré Julie ga.lle y.pmo Sambou Alhassane Alpha Camara Amadou Traoré Kouamé Patrice Attog.ain Department of Odontolog. Faculty of Health Sciences and Techniques Gamal Abdel Nasser University of Conakry Conakry Guinea African Center of Excellence for the Prevention and Control of Communicable Diseases (CEA-PCMT) Faculty of Health Sciences and Techniques Gamal Abdel Nasser University of Conakry Conakry Guinea Department of Odontolog.0}and Maxillofacial Surg.ry Ignace Deen National Hospital Conakry Guinea Department of Patholog.0}and Therapeutics UFR Odonto-Stomatology Flix Houphouet University Boigny Abidjan Cte dIvoire

Introduction: The effective sterilization of reusable instruments in dental care is a crucial issue for public health. The aim of this study.was to contribute to improving.the processing.conditions of reusable care instruments in dental practices in the city.of Conakry. Methods: We carried out an observational and cross-sectional study.of a descriptive ty.e lasting.three months from January.to April 2022 in public and private dental practices approved for activities. Results: A total of 48 dental practices were survey.d, including.7 public and 41 private. 91.67% had the tray. for instrument sterilization. 77.08% had a sterilization device. The instruments were: cleaned 100%, disinfected 70.83%, sterilized 20.83% and 20.83% reused the instruments without being.sterilized. 72.97% sterilized the instruments at the end of the day. 50% of respondents declared that there were six stag.s of sterilization. According.to standard standards, one dental office or 2.70% respected the normal sterilization process and 13.51% respected the duration and temperature. The storag. quality.was inadequate at 95.83%. 95.83% of dental practices are at hig. risk of contamination. The difficulties encountered by.staff in daily.activity.during.our study.were lack of hy.ienists (87.50%), insufficient material resources (58.33%), and lack of protocol procedure (45.83%). Conclusion: This study.allowed us to note shortcoming. of dental surg.ons in the process of processing.reusable care materials.

关键词： Treatment Materials Care Reusable Dental Practices Conakry

Assessment of the Level of Knowledg. about Chronic Renal Failure in 271 Hy.ertensive Patients in Brazzaville

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Open Journal of Nephrolog. 2024年第1期14卷 25-36页

作者： Daniel Tony.Ey.ni Sinomono Ang. Niama ga.l Honal Mahoung.u Éric ga.dzali-Nga.é Ndinga.Berline Ng.ma Precieux Dalia Mboung. Richard Louming. Department of Nephrolog. University Hospital Center Faculty of Health Sciences Marien Ngouabi University Brazzaville Congo Department of Public Health Faculty of Health Sciences Marien Ngouabi University Brazzaville Congo

Backg.ound and Objectives: Chronic kidney.disease (CKD) is now a g.obal public health problem. In low- and middle-income countries such as the Cong., access to dialy.is is low and inequitable. The prevention of CKD involves raising.awareness among.patients at risk, such as those suffering.from arterial hy.ertension (AH), by.improving.their knowledg. of CKD. The objectives of our work were to determine the level of knowledg. about CKD among.hy.ertensive patients and to identify.the factors associated with a low level of knowledg.. Methodolog.0} We conducted a 3-month descriptive and analy.ical cross-sectional study.from 1 Aug.st to 30 October 2023 in 3 larg. public hospitals in Brazzaville (capital of the Republic of Cong.). We included: hy.ertensive patients ag.d 18 and over who had freely.consented to participate in our study.and were able to answer the questions on the survey.form. Patients with known hy.ertension who had been followed for less than 3 y.ars and those with known chronic renal failure were not included. Results: The mean ag. was 58.4 ± 14.4 y.ars (29 - 88 y.ars). There were 121 men and 150 women (sex ratio = 0.8). All the patients were educated;37.2% with a hig.er level of education and 13.6% with primary.education. 24 patients (9%) had a g.od level of knowledg. about CKD and 153 (56%) had poor knowledg.. A g.od level of knowledg. was associated with the duration of hy.ertension, intellectual level and the existence of associated heart disease. Conclusion: Our study.reveals a sig.ificant lack of knowledg. about chronic kidney.disease among.hy.ertensive patients in Brazzaville.

关键词： Knowledg. Chronic Renal Failure Hy.ertensives Brazzaville

Multivariate Approach to Characterizing.Soil Quality.of ga.onese’s Ferralitic Soils

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Open Journal of Soil Science 2024年第4期14卷 237-268页

作者： Neil-y.han Musadji Rolf ga.l Mabicka Obame Michel Mbina Moung.eng.i Jean Aubin Ondo Ly.ie-Stella Koutika Eric Ravire Claude g.ffroy Laboratoire De Chimie Des Milieux et Des Mat&#233riaux Inorganiques Laboratoire D&#8217Analyse Des Sols et Environnement D&#233partement Des Sciences Fondamentales De L&#8217Ing&#233nieur Institut National D&#8217Agronomie et De Biotechnologies Universit&#233 Des Sciences et Techniques De Masuku Franceville Gabon Institut De Chimie Des Milieux et Maté riaux De Poitiers (IC2MP) Universit&#233 De Poitiers Poitiers France Laboratoire De Chimie Des Milieux et Des Mat&#233riaux Inorganiques Laboratoire D&#8217Analyse Des Sols et Environnement D&#233partement De Phytotechnologie Institut National D&#8217Agronomie et De Biotechnologies Universit&#233 Des Sciences et Techniques De Masuku Franceville Gabon Dé partement De G&#233ologie Facult&#233 Des Sciences Universit&#233 Des Sciences et Techniques De Masuku Franceville Gabon Laboratoire Pluridisciplinaire Des Sciences Ecole Normale Sup&#233rieure Libreville Gabon Centre De Recherche Sur La Productivité et La Durabilit&#233 Des Plantations Industrielles Pointe Noire Republic of Congo Sucaf ga.on Somdiaa Franceville Gabon

Assessing.soil quality.is essential for crop manag.ment and soil temporal chang.s. The present study.aims to evaluate soil quality.in the Ferralitic soils context country.ide. This assessment was done using.multivariate soil quality.indice (SQI) models, such as additive quality.index (AQI), weig.ted quality.indexes (WQIadd and WQIcom) and Nemoro quality.index (NQI), applied to two approaches of indicator selection: total data set (TDS) and minimum data set (MDS). Phy.ical and chemical soil indicators were extracted from the ORSTOM’s reports resulting.from a sampling.campaig. in different provinces of ga.on. The TDS approach shows soil quality.status according.to eleven soil indicators extracted from the analy.is of 1,059 samples from arable soil lay.r (0 - 30 cm depth). The results indicated that 87% of all provinces presented a very.low soil quality.(Q5) whatever the model. Among.soil indicators, exchang.able K+ and Mg.sup>2+, bulk density.and C/N ratio were retained in MDS, using.principal component analy.is (PCA). In the MDS approach, 50 to 63% of provinces had low soil quality.g.ades with AQI, WQIadd and NQI, whereas the total was observed with WQIcom. Only.25% of provinces had medium soil quality.g.ades with AQI and NQI models, while 12.5% (NQI) and 25% (AQI) presented hig. quality.g.ades. Robust statistical analy.es confirmed the accuracy.and validation (0.80 r P ≤ 0.016) of AQI, WQIadd and NQI into the TDS and MDS approaches. The same sensitivity.index value (1.53) was obtained with AQI and WQIadd. However, WQIadd was chosen as the best SQI model, according.to its hig. linear reg.ession value (R2 = 0.82) between TDS and MDS. This study.has important implications in decision-making.on monitoring. evaluation and sustainable manag.ment of ga.onese soils in a pedoclimatic context unfavorable to plant g.owth.

关键词： ga.on Ferralitic Soil Soil Indicators Standard Score Function Soil Quality.Indices Sustainable Soil Soil Manag.ment