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Automatic Detection and Characterization of Human Veins Using Infra-Red Image Processing

Journal of Computer and Communications 2024年第9期12卷 141-159页

作者： Jean Ndoumbe Brice Ekobo Akoa Gaelle patricia Talotsing Frederic Franck Kounga Samuel Kaissassou Bertin Chouanmo Njo Laboratory of Computer Engineering Data Science and Artificial Intelligence Department of Computer & Telecommunications Engineering National Higher Polytechnic School Douala Cameroon Laboratory of Electrical Engineering Mechatronics and Signal Processing Department of Electrical & Telecommunications Engineering National Advanced School of Engineering Yaound Cameroon Mobile Computing and Networking Research Laboratory Department of Computer and Software Engineering Polytechnique Montreal Montreal Canada DigiPlus SARL Bonamoussadi Douala Cameroon

The detection and characterization of human veins using infrared (IR) image processing have gained significant attention due to its potential applications in biometric identification, medical diagnostics, and vein-based authentication systems. This paper presents a low-cost approach for automatic detection and characterization of human veins from IR images. The proposed method uses image processing techniques including segmentation, feature extraction, and, pattern recognition algorithms. Initially, the IR images are preprocessed to enhance vein structures and reduce noise. Subsequently, a CLAHE algorithm is employed to extract vein regions based on their unique IR absorption properties. Features such as vein thickness, orientation, and branching patterns are extracted using mathematical morphology and directional filters. Finally, a classification framework is implemented to categorize veins and distinguish them from surrounding tissues or artifacts. A setup based on Raspberry Pi was used. Experimental results of IR images demonstrate the effectiveness and robustness of the proposed approach in accurately detecting and characterizing human. The developed system shows promising for integration into applications requiring reliable and secure identification based on vein patterns. Our work provides an effective and low-cost solution for nursing staff in low and middle-income countries to perform a safe and accurate venipuncture.

关键词： Vein Detection Blood Radiation Infrared Image CLAHE Algorithm Raspberry Pi

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Comparative Study of Early Neonatal Complications between the First and Second Twin during Twin Vaginal Deliveries at the Yaounde Gynaeco-Obstetric and Pediatric Hospital, and the Yaounde Central Hospital

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Open Journal of Obstetrics and Gynecology 2024年第3期14卷 381-392页

作者： Florent Ymele Fouelifack Felicite Nguefack patricia Bashir Kadidja Roosvelt Dongmo Tiodjou Jeanne Hortence Fouedjio Pascal Foumane Higher Institute of Medical Technology of Nkolondom Yaounde Cameroon Obstetrics and Gynaecology Unit of Yaounde Central Hospital Yaounde Cameroon Associative Group for Research Education and Health La Falaise “GARES-Falaise” Dschang Cameroon Obstetrics and Gynaecology Unit of the Yaounde Gynaeco-Obstetrics and Pediatric Hospital Yaounde Cameroon Faculty of Medicine and Biomedical Sciences University of Yaounde I Yaounde Cameroon

Introduction: Twin birth is the expulsion of two fetuses and their appendages out of the woman’s reproductive tract. It’s a high-risk delivery because of the high frequency of maternal, fetal and neonatal complications. Few studies exist on the comparative prognoses of twins. Our objective was to compare early neonatal complications in first and second twins. Methods: We carried out a cross-sectional prospective study from January 2 to April 30, 2020 (4 months) at the Yaounde Gynaeco-Obstetric and Pediatric Hospital, and the Yaounde Central Hospital. Data collected were analyzed using IBM SPSS version 23. Descriptive statistics were done in frequencies and percentages, means and standard deviations. Paired-sample student's t-test were used to compare means. McNemar’s Chi-square and Ficher’s exact tests were used to compare proportions. Statistical significance was set at p-values less than 0.05. Results: Of a total of 2183 deliveries during the study period, 43 (1.96%) were twin vaginal deliveries. Among the 43 women, 41 consented to have their newborns participate in the study. Overall, APGAR scores were better for the first twins at the first (p = 0.004) and fifth (p = 0.031) minutes than for the second twins. Although both twins had complications and that there were 4 neonatal deads of the second twin, there was no relationship between studied complications and the rank of the twin (p = 0.310). Conclusion: As the APGAR score seemed to be better for first twins, clinicians should pay more attention during twin births, in order to improve the prognosis of the second twin.

关键词： Comparison Vaginal Birth Rank of Twin Early Neonatal Complications

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Phagocytosis: A Practical Approach for Evaluating Neutrophil Function in Health and Disease

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Modern Research in Inflammation 2024年第2期13卷 9-28页

作者： Oscar Rojas-Espinosa patricia Arce-Paredes Sergio Islas-Trujillo Luis Enrique Becerril-Villanueva María Dolores Ponce-Regalado Departamento de Inmunologa Escuela Nacional de Ciencias Biolgicas Instituto Politcnico Nacional Ciudad de Mxico Mxico Laboratorio de Psicoinmunologa Instituto Nacional de Psiquiatra Ramn de la Fuente Ciudad de Mxico Mxico Departamento de Ciencias de la Salud Centro Universitario de los Altos Universidad de Guadalajara Jalisco Mxico

Neutrophils, crucial players in the effector phase of the immune response, are recognized as important mediators of both innate and adaptive immune responses. Through the production of pro- and anti-inflammatory cytokines, they modulate the function of T and other lymphoid cells. Countless reports have highlighted the importance of these cells as efficient antimicrobial agents and annotated their involvement in the pathology of infectious and noninfectious diseases. The development of modern, sophisticated technologies has allowed the study of the functions of these cells in clinical settings. These advanced technologies include fluorescence-activated cell sorters, confocal microscopy, automated cell image analyzers, and live cell analysis instruments. Unfortunately, the cost of these modern instruments, maintenance, reagents, and the need for qualified technicians prohibit their use in low-income laboratories and universities in developing countries. With this in mind, we propose a series of basic tests that can be used in low-input clinical laboratories and universities to evaluate the function of neutrophils in health and disease. Our methodology allows us to assess in a practical and low-cost manner the functions of neutrophils in the phagocytic process, including opsonization, ingestion, ROI production (NBT reduction), myeloperoxidase content, phagosome-lysosome fusion, microbicidal activity, and NET production. Thus, under a disadvantageous ambiance, this may guide physicians in deciding whether a patient’s illness involves phagocytic defects without imposing a heavy financial *** Abstract[-rId13-]

关键词： Phagocytosis Neutrophils Microbicidal Activity Netosis

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明智地利用时间

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中学生英语 2024年第3期 10-11页

作者： patricia Ruhaak 肖雅琪(译) 不详

“你在干什么?”当我弓着腰坐在课桌边上时,我五年级的老师问道。“我正在收拾背包。几分钟后铃声就要响了。”

关键词：五年级老师干什么

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Metabolic disease and the liver: A review

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World Journal of Hepatology 2024年第1期16卷 33-40页

作者： Márcia Vargas Sheila de Castro Cardoso Toniasso patricia G Riedel Camila Pereira Baldin Francielle Lopes dos Reis Robson Martins Pereira Maria Carlota Borba Brum Dvora Joveleviths Mario Reis Alvares-da-Silva Program of Graduate Science in Gastroenterology and Hepatology Federal University of Rio Grande do SulPorto Alegre 90040-060Rio Grande do SulBrazil School of Medicine Federal University of Rio Grande do SulPorto Alegre 90040-060Brazil Program of Graduate Science in Gastroenterology and Hepatology Clinicas Hospital of Porto AlegrePorto Alegre 90410000Brazil Medicine Faculty Federal University of Rio Grande do Sul Federal University of Rio Grande do SulPorto Alegre 90040-060Brazil Division of Gastroenterology and Hepatology Clinicas Hospital of Porto AlegrePorto Alegre 90035007Brazil

Metabolic dysfunction-associated steatotic liver disease(MASLD)is the most common liver disease worldwide,with an estimated prevalence of 31%in Latin *** presence of metabolic comorbidities coexisting with liver disease varies substantially among *** is acknowledged that obesity is boosting the type 2 diabetes mellitus“epidemic,”and both conditions are significant contributors to the increasing number of patients with *** steatohepatitis represents a condition of chronic liver inflammation and is considered the most severe form of *** diagnosis is based on the presence of steatosis,noninvasive scores and altered liver *** scores of liver fibrosis,such as serum biomarkers,which should be used in primary care to rule out advanced fibrosis,are simple,inexpensive,and widely ***,guidelines from international hepatology societies recommend using noninvasive strategies to simplify case finding and management of high-risk patients with MASLD in clinical ***,there is no definite pharmacological treatment for the *** public health policies to treat patients with risk factors for MASLD prevention is essential.

关键词： Nonalcoholic fatty liver disease Primary care Metabolic risk Liver Metabolism

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Vanadium mineralization at Los Chihuidos sediment-hosted Cu-V deposit,Neuquén Basin,Argentina:An approach to vanadium ore forming processes

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Geoscience Frontiers 2024年第1期15卷 225-246页

作者： Ana L.Rainoldi Daniel Beaufort Marta B.Franchini Adolfo Giusiano Sabine Petit patricia Patrier M.Josefina Pons Dpto.de Geología Universidad Nacional del Sur(UNS)8000 Bahía BlancaArgentina Consejo Nacional de Investigaciones Científicas y Técnicas Centro Patagónico de Estudios MetalogenéticosArgentina Universitéde Poitiers IC2MPCNRS-UMR 7285HydrasaF-86022 Poitiers CedexFrance Universidad Nacional del Comahue Facultad de IngenieríaDepartamento de Geología y Petróleo8300 NeuquénArgentina Consultant Geologist 8300 NeuquénArgentina Universidad Nacional de Río Negro Instituto de Investigación en Paleobiología y GeologíaRío NegroArgentina

Vanadium mineralization at Los Chihuidos deposit of the Neuquén Basin is linked to the development of a redox front system related to the inflow of hydrocarbons into the red sandstone of the Huincul *** of hydrocarbons with oxidized red beds and connate water generated redox reactions where hematite was dissolved due to iron reduction resulting in the discoloration of the red *** the contact between oxidized red sandstone and reduced white sandstone,precipitation of specific mineral phases resulted in the V ore with minor amounts of *** the implementation of the redox interface,abundant V-montmorillonite and V-hematite precipitated at the more oxidizing conditions and Cu-V-corrensite-type at the more reducing conditions of the redox *** the redox front advanced with fluids constantly migrating into the reservoir,more reducing conditions were stablished,promoting chloritization and minor illitization with V-Cu incorporation and continuous upgrading of the *** ore mineralogy consists of clay minerals including V-bearing montmorillonite,Cu-V-corrensite-type,V-di-trioctahedral chlorite and Cu-tri-trioctahedral chlorite with minor V-illite-smectite mixed-layer minerals and associated secondary *** over illitization was favored due to high amounts of Fe and Mg in detrital clasts and in connate fluids and by low K availability related to low amounts of detrital *** spatial transition of V and/or Cu bearing clay minerals observed through the mineralized redox front at Los Chihuidos deposit(kaolinite→smectite→illite/smectite→corrensite-type→di-trioctahedral-chlorite→tri-trioctahedral-chlorite)and the related variation of V-Cu concentrations in bulk rock are indicative of increasing pH and decreasing Eh of resident solutions from red to white sandstones during the hypogene mineralization *** influx of Cu-rich oxidized basinal brines precipitated main copper ore with Cu-sulfides in the white sandst

关键词： Clay minerals V-chlorite Redox front Bleaching Hydrocarbons

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Assessement of Nutritional Status of Households Using Weighed Food Intake in North West Region of Cameroon

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Food and Nutrition Sciences 2024年第1期15卷 1-26页

作者： Ebai Nee Besong patricia Ange Gustave Mabiama Eyenga Manga Nyangono Biyegue Fernande C. Winifred Fila Ogah Eridiong O Onyenweaku University of Douala Higher Teacher Training College For Technical Education Douala Cameroon Department of Biochemistry Faculty of Basic Medical Science University of Calabar Calabar Nigeria

This study determined the nutritional status of households in North western region of Cameroon using weighed food intake. Twenty–two rural and 106 urban households were randomly selected for weighed food intake Descriptive and inferential statistics were used to analyze collected data and significance at p < 0.05 accepted. Corn fufu with huckleberry was the most frequently consumed meal with little or no animal-source protein. Protein and B group vitamins intake of respondents in both communities were below the FAO/WHO recommended values while energy, iron, and vitamins A and C were in excess for most age groups. Adolescents 10 - 19 years and adults 20 years and above failed to meet at least 85% of RNI for calcium.

关键词： Food Intake Household Nutrients Nutritional Status

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Root Sprouts of Domesticated Phaseolus coccineus L. Overwinter Plants and the Environment at Its Collection Sites

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Open Journal of Ecology 2024年第5期14卷 508-521页

作者： Ma. Luisa patricia Vargas-Vázquez Jorge Alberto Acosta-Gallegos Fabián Islas-Gutiérrez Enrique Buendía-Rodríguez Campo Experimental Valle de Mé xico Instituto Nacional de Investigaciones Forestales Agr&#237colas y Pecuarias Texcoco Mexico Campo Experimental Bají o Instituto Nacional de Investigaciones Forestales Agr&#237colas y Pecuarias Guanajuato M&#233xico

Buds emerge from the roots of domesticated runner bean plants (Phaseolus coccineus L.) as sprouts and give the crop its persistence. This particularity of the species seems to be associated with the environment where the species was cultivated during long time. Data on regrowth traits were recorded on 70 accessions of domesticated P. coccineus after overwintering at a site in the central highlands of Mexico. The characteristics recorded included fresh weight of vegetative regrowth, root length, root crown diameter, and diameter of the main root. Most accessions that sprout the following spring, after the grain harvest of the previous year, come from temperate and semi-cold sites with cambisol and andosol soils in mixed Quercus pine forest and high mountain fir trees. Those that do not sprout are from sites of semiarid temperate climate, haplic phaeozem soil in shrub grasslands with deciduous broadleaved trees, and semiwarm subhumid climate, eutrophic regosol soil in deciduous broadleaved forest. Two types of roots were differentiated: branched and thickened taproots, also associated with a different climate, and the type of soil of the collection sites.

关键词： P. coccineus Distribution Vegetation-Environment Interactions Drought-Alternative Species Root-Regrowth

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Enhancing Evidence-Based Practice and Critical Thinking Skills of Nursing Students: Lessons from the Review of the Bachelor of Science in Nursing Curriculum of the University of Zambia

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Open Journal of Nursing 2022年第2期12卷 155-169页

作者： Mwiinga-Kalusopa Victoria Maimbolwa Margret Connie Wahila Ruth katowa-mukwato patricia Vwalika Bellington Nzala Selestine Kabinga-Makukula Marjorie Chigunta Micheal Kampata Linda Kayamba Violet Kafumukache Elliot Simuyemba Moses Musenge Emmanuel Mwiinga Christabel Goma Fastone School of Nursing Sciences The University of Zambia Lusaka Zambia School of Medicine The University of Zambia Lusaka Zambia School of Public Health The University of Zambia Lusaka Zambia School of Medicine and Health Sciences Eden University Lusaka Zambia

Background: Making changes in the existing curriculum aims, objectives, course contents learning outcomes and assessment strategies have become a fact of life for nurse educators. Purpose: To enhance the existing Bachelor of Science (BSc) in nursing curriculum through integration of evidence-based practice (EBP) and teaching of critical thinking skills. Materials and Methods: A needs analysis was conducted using a five-phased approach to review the BSc in nursing Curriculum. Kern’s six-step model was adapted and introduced through a series of workshop exercises that highlighted the application of each step: 1) Desk review of the BSc curriculum offered globally;2) Administration of the needs assessment questionnaire to key informants;3) Strengths, weakness, opportunities and threat analysis;4) Consultative meeting with major stakeholders;5) Curriculum review. Results: The five-phased approach established some gaps in existing curricula, and identified critical core competences and best practices in integrating EPB and critical thinking in the BSc undergraduate curriculum and some “A” level content that was not in tandem with the practice of nurses. New courses were developed to support students in academic writing and enhance professionalism and duration of training was reduced from 5 to 4 years. Conclusion: The process demonstrated that BSc curriculum review, in fact, should be thoroughly scrutinized to encourage positive changes to the curriculum, provide opportunities for team building and the development of leadership skills and a whole-of course perspective on the curriculum.

关键词： Bachelor of Science Nursing Curriculum Evidence-Based Practice Critical Thinking Review

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Contextualisation of Early and Enhanced Clinical Exposure Model through Development of Curricula for Advanced Practice Nursing and Midwifery

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Open Journal of Nursing 2022年第7期12卷 525-536页

作者： katowa-mukwato patricia Mwiinga-Kalusopa Victoria Maimbolwa Margaret Connie Kabinga-Makukula Marjorie Kayamba Violet Kafumukache Elliot Simuyemba Moses Musenge Emmanuel Mwiinga Christabel Linda Kampata Selestine H. Nzala Cosmas Zyaambo Trevor Kaile Goma Fastone School of Nursing Sciences University of Zambia Lusaka Zambia School of Medicine University of Zambia Lusaka Zambia School of Public Health University of Zambia Lusaka Zambia School of Medicine South Valley University Mazabuka Zambia School of Medicine and Health Sciences Eden University Lusaka Zambia

Background: An Advanced Practice Nurse is a generalist or specialized nurse who has acquired thorough graduate education a minimum of a master’s degree. The need for Advanced Practice Nurses is increasingly recognized globally. This paper describes the process, which was undertaken by School of Nursing Sciences, University of Zambia in reviewing and developing advanced practice nursing and midwifery curricula which will be implemented using the Early and Enhanced Clinical Exposure model (EECE). Materials and Methods: The curricula development/review process utilized a modified Taba’s Model which followed a step-by-step approach including: 1) desk review, 2) diagnosis of needs (needs assessment), 3) stakeholder consultations, 4) content development, 5) validations and approval from which several lessons were learnt and recommendations made. Findings and recommendations from different stages were used as a basis for reviewing and developing advanced practice nursing and midwifery curricula. Results: Desk review needs assessment and stakeholder consultations identified both strengths and weaknesses in the existing curricula. Major strengths were duration and core courses which met the minimum requirement for postgraduate nursing and midwifery training. Major weaknesses/gaps included some content that was too basic for the master’s level and the delayed exposure to practicum sites which limited the development of advanced practice skills. Others were inadequate competence for advanced practice, inadequate research methodology course, lack of content to foster development of personal soft skills and predominant use of traditional teaching methods. Stakeholders recommended implementing advanced, clinical and hands-on Masters of Nursing and Midwifery programmes which resulted in the review of four existing and development of five demand-driven curricula. Conclusion: The reviewed and developed curricula were strengthened to close the identified gaps. Both the reviewed and d

关键词： Advanced Practice Nursing/Midwifery Curricula Development Early Enhanced Clinical Exposure Model

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