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作者： agbor JOSEPH 湖南师范大学

学位级别：硕士

目前,正在开发创新的信息和通信技术,以帮助改善日常生活的各个领域。在这些创新中,物联网(IOT)的发展,普适计算和无处不在计算都是值得关注的,因为它们可以无视终端用户的物理位置,为其提供控制和访问各种计算资源和信息的能力。智能... 详细信息

目前,正在开发创新的信息和通信技术,以帮助改善日常生活的各个领域。在这些创新中,物联网(IOT)的发展,普适计算和无处不在计算都是值得关注的,因为它们可以无视终端用户的物理位置,为其提供控制和访问各种计算资源和信息的能力。智能家居的概念已经存在了十年,并经历了可喜的发展。上下文感知计算的发明是可以应用于各种设置的此类开发的一个好例子。从智能家居的角度来看,上下文感知信息有助于家庭根据手头的情况进行调整。例如,上下文感知智能家居可以通过上下文感知计算自动控制室温或环境灯。上下文感知计算长期以来一直是全球研究的核心领域。虽然上下文感知计算正在不同的平台进行测试,但一个特定的领域是开发上下文感知的智能家居系统。在这个领域中应用和使用上下文感知有望为家庭服务带来有希望的创新。然而,为了使上下文感知的智能家庭系统能够商业化,还有更多的研究空间。开发智能家庭系统对研究人员和工程师来说是一个挑战,因为这些系统的实施和评估过程成本高昂,同时非常耗时。在实际构建之前测试设计的智能家居系统被认为是实现高效智能家居项目的另一个障碍。这是因为各种传感器、家用电器和设备都可用于真正的智能环境。为了解决开发动态上下文感知智能家居系统的问题,本文提出了一种基于上下文感知的智能家居仿真器,适合于智能家居的仿真方面环境。该模拟器提供了一个设计的家庭计划,虚拟传感器和不同的设备作为虚拟家庭环境的模型。还可以定义场景以测试设备状态的各种可能的组合;因此可以简单地评估不同的标准和变量,而无需在实际环境中进行实验。本文旨在设计和实现基于OSGi框架的分布式智能家居环境感知模拟器,其中虚拟传感器创建上下文信息而不是使用物理传感器。XML配置文件用于保存用于构造家庭环境、虚拟设备和服务、模拟上下文信息和测试设备之间的OSGi事件交互的信息。针对当今时代的动态需求,本文开发了一种支持无处不在的技术并具有情境感知能力智能家居系统。交互是基于通过公用OSGi框架以分布式环境的形式连接在一起的实际设备触发的。实际操作上下文与模拟上下文进行比较,并根据一组规则确定智能家居内的交互。环境和管理功能(规则、事件和操作模式)通过一组可配置的XML文件进行配置,动态图形表示描述智能家居的当前状态。本文的主要成果如下:1.本文指出了以往设计的上下文感知模拟器的常见问题和局限性,并提出了一种更具伸缩性和动态性的面向服务架构(SOA)上下文感知模拟器。2.针对智能家居系统的开发和测试,提出了一种基于OSGi的分布式智能家居环境感知模拟器,解决了智能家居设计中存在的问题。OSGi旨在为智能家居系统应用程序的开发提供一个基于模块化和动态的Java系统规范。这种智能家居模拟已被开发为分布式环境。在共享网络的不同对象之间发送和接收数据。由于可以在智能家居中添加和删除设备,因此OSGi框架是最佳的选择。即使设备发生故障(如光故障),系统其余部分的工作也不会受到影响。一旦设备被修复,就可以将其添加回OSGi网络,并在系统中恢复其角色。3.在高度动态模拟器的设计方面,本文提出了一种基于OSGi的环境感知模拟器,用于分布式智能家居中解决该问题。Apache Felix iPOJO(注入的普通Java对象)基于Maven的方法被用于建立OSGi环境。iPOJO是专门为OSGi服务平台创建的面向服务的组件模型。iPOJO的目的是通过提供和使用服务、处理动态性问题来简化OSGi开发,并通过无缝地合并高级功能(包括组件配置、同步和组合)为基本的OSGi机制提供支持。模拟在真正智能家居的设计和开发阶段发挥了重要作用。模拟器直观地表示基于用户活动的智能家居不同设备之间发生的运行时交互。通过虚拟传感器,可以模拟真实环境,并且能够便捷的生成上下文感知逻辑。一旦系统意识到了上下文感知,虚拟设备就可以被真实设备所替代。如前所述,使智能家居系统分布式的解决方案是使用(OSGi)技术。使用OSGi框架来设计分布式智能家居是一个很好的研究领域。文中已经研究并实现了几种模拟器的设计,这些模拟器并不一定基于OSGI。本文类似于傅等学者(2011)所提出的观点。本文目的是为基于分布式OSGi的智能家居系统中的多个居民开发上下文感知逻辑。所开发的工具必须支持多种设备,并且应在不同的智能家居环境中安装。系统的不同组件是可配置的,例如设备、人员和环境,都是通过XML文件进行配置。这使得相同系统可以在任何类似的智能家居中应用,而无需更改任何已开发的组件。由于系统是基于OSGi的,所以它是一个分布式的智能家居系统。本文模拟了一个案例研究场景,并通过实验结果验证了基于OSGi的模拟器的工作原理。该模拟器有两种操作模式,即在Net Beans IDE(集成开发环境)上运行的模拟器模式和使用Apache Felix iPOJO(Maven数据库)开发的OSG

关键词：智能家居系统上下文感知基于OSGi的模拟器 Apache Felixi POJO 仿真

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Traumatic Penile Amputation Post Circumcision: A Series of 3 Cases

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Open Journal of Urology 2023年第11期13卷 517-524页

作者： Orock agbor Tanyi Mbassi Achille Aurele Mekeme Mekeme Junior Fouda Jean Cedrick Owon Abessolo Nwatchap Jean Jacques Awoundja Christain Pierre Joseph Fouda Department of Surgery and Subspecialties Faculty of Medicine and Biomedical Sciences University of Yaoundé 1 Yaoundé Cameroon Surgery Service Regional Hospital Ngoundere Ngoundere Cameroon Urology and Andrology Service Yaoundé Central Hospital Yaoundé Cameroon Department of Surgery and Subspecialties Higher Institute of Medical Technology Yaoundé Cameroon

Circumcision remains a frequently performed surgical procedure and could be associated with various complications, ranging from mild to catastrophic. Penile amputation is a rare and severe complication usually complex and challenging to manage. We describe three cases of penile amputation injuries following circumcision referred within a week at the urological service of the Yaoundé Central Hospital. The first case was a 5-year-old who had complete penile amputation during circumcision by a nurse assistant at a rural health center. The second was a 7-year-old boy who sustained total penile glans amputation while undergoing circumcision by a nurse under local anesthesia at a rural health facility. The third involved a 6-year-old who had total penile amputation with loss of the amputated stump during circumcision by a traditional practitioner at home. Non-microsurgical penile re-implantations were done with diverse outcomes. The preservation of the amputated stump, the ischemic time and the severity of injury are factors affecting surgical outcome. The aim of this study is to evaluate our management experience and outcome of penile amputation injuries in resource-limited settings. Microsurgical replantation remains the gold standard in the management of penile amputation injuries. However, in resource-limited settings macroscopic replantation could be used as an alternative remedy to salvage the amputated penis.

关键词： Circumcision Penile Amputation Surgical Management Complications

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Shallow Marine Cretaceous Sequences and Petroleum Geology of the Onshore Portion Rio del Rey Basin, Cameroon, Gulf of Guinea

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Open Journal of Marine Science 2016年第2期6卷 177-192页

作者： Olivier Anoh Njoh agbor Junior Taku Department of Geology University of Buea Buea Cameroon

Extensive thickly folded sedimentary sequences are exposed onshore of the Rio del Rey Basin contrary to previous reports of their rarity. Shales predominate, frequently intercalated by marlstones, sandstones, mudstones, limestones and marls and have been intruded in places by volcanic rocks of the Cameroon Volcanic Line (CVL). An integration of lithostratigraphic, paleontologic, granulometric and petrographic data generated from field and laboratory studies, permitted the identification of eleven (11) lithofacies which were subsequently grouped into three facies associations to facilitate the reconstruction of the paleo-depositional environment. Graphic logs constructed from the different outcrops studied revealed general coarsening upward sequences. Mega body fossils recovered from these sediments include severely altered, ferruginized fish and turtle-like heads, bivalve shells and moulds. Two bivalve taxa were identified: Exogyra ponderosa (Roemer) and members of theVenericardiinae sub-family. Textural and mineralogical details were obtained from granulometric and thin sections (microscopy). Interpretation of these data inferred an open relatively deeper marine, probably middle neritic to near shore transitional intertidal environments into which these sediments previously dated as Lower to Upper Cretaceous were deposited. Elements of a possible petroleum system: source and reservoir rocks, migratory pathways and trapping conditions, have been pointed out and thought to exist in space and time.

关键词： Cretaceous Depositional Environment Lithofacies Petroleum System Rio del Rey

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Evaluation of the Effect of Gurusa, a Ugandan Cereal-Based Fermented Food on Serum Lipid Profile and Body Weight of Wistar Albino Rats

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Food and Nutrition Sciences 2016年第4期7卷 284-293页

作者： Atamgba agbor Asuk Abbas Kisambira Muhammad Lubowa Denis Ssenabulya Department of Medical Biochemistry Cross River University of Technology Okuku Campus Calabar Nigeria Department of Food Science and Nutrition Islamic University in Uganda Mbale Uganda

The effect of Gurusa, a fermented traditional food on lipid profile and body weight was investigated. Thirty male albino rats weighing between 75 - 115 g assigned into five study groups designated A to E (n = 6) were fed 20 g of prepared pellets and tap water given ad libitum. The animals were served graded doses of Gurusa. Group A was served 100% rat chow pellets (made of maize bran);groups B, C and D were given pellets of 75% rat chow and 25% Gurusa, 50% rat chow and 50% Gurusa, 25% rat chow and 75% Gurusa respectively while group E was served 100% Gurusa. The lipid profile showed a dose dependent effect of Gurusa administration as one moves down the groups. Group D had a reverse action of group B and showed significant (P < 0.05) increase in TC, TG and HDL compared to groups A and B but a significant (P < 0.05) decrease in LDL compared to group B. Weight changes in group B produced a significant (P < 0.05) increase in MWI and GR compared to the other groups. There was no significant (P ≥ 0.05) difference in MWI and GR of group D when compared with group A. However group C showed significant (P < 0.05) increase in MWI and GR when compared with group A. Gurusa consumption alters both lipid profile and body weight and its combination with maize bran or other foods rich in dietary fibre, have potential to serve therapeutic purposes in the prevention of atherosclerosis and obesity depending on the intended objective.

关键词： Traditional Diet Atherosclerosis Obesity Proximate Composition Nubians

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Evaluation of the Anti-Poaching Programme of the Cross River National Park Okwango Division, Nigeria 2002 to 2013

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Open Journal of Forestry 2014年第5期4卷 507-511页

作者： Augustine Ugar Ogogo Sijah agbor Asuk Rebecca Victor Ikpeme Department of Forestry and Wildlife Resources Management University of Calabar Calabar Nigeria Cross River National Park Headquarters Akamkpa Nigeria

Poaching of wildlife has continued to be the major problem confronting national parks managers in Nigeria in spite of effort being made to curb the ugly trend. This paper examined the anti-poaching programme of the Cross River National Park Okwango Division Nigeria from 2002 to 2013, with a view to making recommendations for the improvement of the programme. Focused group discussions, personal interviews, review of official records and structured questionnaires were used to collect data. Analysis of variance using randomized complete block design and student’s t-test were used to analyse data. Result showed that 1 - 5 arrests of poachers per month per patrol station was significantly (P 0.05) in the number of poachers arrested and fined between 2002 to 2006 and 2007 to 2011. The low performance of the anti-poaching programme was attributed to poorly equipped rangers’ posts as well as well the absence of alternative livelihood options in the enclave and surrounding communities. It was recommended that more rangers should be employed, and the rangers should be adequately kitted, well equipped patrol stations be constructed and the enclave and surrounding communities be involved in the management of the National Park in addition to providing them with alternative livelihood options.

关键词： Evaluation Anti-Poaching Cross River National Park Okwango Nigeria

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Vaccination Coverage and the Risk of Hepatitis B Virus Infection amongst Medical and Paramedical Students Practicing at the Bamenda Regional Hospital in Cameroon Sub-Saharan Africa

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International Journal of Clinical Medicine 2021年第5期12卷 211-223页

作者： Milca A. Asanghanwa Menji B. Nyuykighan Odelia Kwende-Tanjong Esther agbor Department of Medical Laboratory Science Faculty of Health Sciences University of Bamenda Bambili Cameroon Department of Nursing Faculty of Health Sciences University of Bamenda Bambili Cameroon

Introduction: The endemic nature of hepatitis B virus (HBV) in Sub-Saharan Africa is a significant public health problem that places health care providers (medical students inclusive) at increased risk of occupational exposure. However, vaccination against HBV is not systematic among medical students in Cameroon. Thus, we sought to evaluate awareness and HBV vaccine coverage amongst medical students in Cameroon. Aim: The present study was aimed at determining the proportion of Medical and Paramedical students on internship at the Bamenda Regional Hospital (BRH) who are vaccinated and immune to hepatitis B virus (HBV). Methods: This was a hospital-based cross sectional study carried out at the BRH in Cameroon. Questionnaires were administered to 120 participants who signed an informed consent form and venous blood samples collected in dry tubes for the HBV-5 PANEL test. Data were collected within a period of two weeks. HBV vaccine status was defined as complete (3 doses), partial (1 or 2 doses), and unvaccinated. Results: Of 120 participants (87 females and 33 males), 56 (46.7%) were vaccinated at least once against HBV;15 (12.5%) were partially vaccinated and 41 (34.2%) completely vaccinated. Out of the 56 vaccinated individuals, only 13 (23.2%) were confirmed immunized against HBV by testing positive for hepatitis B surface antibodies. Only 3 (5.4%) students had done post-vaccination serologic test to confirm their immunized status. There was high exposure to potentially infected body fluids like blood (97.5%) and urine (87.5%). There was equally poor practice of adequate preventive measures like regular hand washing and the proper use of personal protective equipment. A prevalence of 3.1% of HBV amongst the unvaccinated group was recorded. Conclusion: Only 1 in 3 medical students had completed the HBV vaccination series and only 26.8% of this cohort was confirmed immunized against

关键词： Hepatitis B Virus Hepatitis B Surface Antibodies Immunization Medical and Paramedical Students

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Enhanced Adherence Counselling, Support Groups and Viral Load Suppression amongst HIV-Positive Adolescents in a Tertiary Health Care Facility in Cameroon

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Advances in Infectious Diseases 2022年第4期12卷 685-702页

作者： agbor Nyenty agbornkwai André Izacar Gaël Bita Stephane Amatagana Mabouna Ismaila Esa Ajong Brian Ngongheh Ateh Stanislas Ketum Derek Akateh Yannick Lechedem Ngunyi Arnold Agwe Tanah Gisele Christian Miangu Wolloh Grace Tadzong-Awasum Catholic University of Central Africa Yaounde Cameroon Médecins Sans Frontières Belgique Bangui Central African Republic Ministry of Public Health Yaounde Cameroon Cameroon Baptist Convention Health Board Yaounde Cameroon University of Buea Buea Cameroon

Background: Globally, HIV viral load suppression rate, which is an indirect measure of the efficacy of antiretroviral (ART) medication, is 47% and 52% in Africa. In Cameroon, the viral load (VL) suppression rate is 44.7% and poor adherence is widely documented as being responsible for the large gap in VL Suppression. Enhanced adherence counselling (EAC) sessions, and enrolment and participation in support groups are specific interventions to improve ART adherence and improve viral load suppression. Purpose: This study assesses the uptake and contribution of support groups and EAC sessions in the management of adolescents with unsuppressed VL results at Centre Hospitalier d’Essos, Yaounde. Methods: A retrospective correlational quantitative patient files review was conducted for 138 files of HIV positive adolescents aged between 10 - 19 years with HIV VL above 1000 copies/ml enrolled in care between January 2009 and December 2019. Data from the questionnaire was entered into CSPRO version 7.4. and analyzed by using SPSS version 25.0. Results: A total of 138 participants (75 females and 63 males) with a mean age of 15 ± 3 years were included in our study. Sixty-nine (50%) participants were in World Health Organization (WHO) stage I;32.6% were in Stage II;13.0% and 4.3% were in stages III and IV, respectively. Thirty (21.7%) had a history of tuberculosis and 76% of the adolescents were being cared for primarily by their parents. The charts of the adolescents revealed that there was an association between completion of EAC sessions in adolescents with unsuppressed VL and eventual VL suppression (R.R = 2.5;CI 0.848 - 6.162;p = 0.033). However, there was no significant association between support group enrolment and active participation, and eventual VL Suppression. Furthermore, combining EAC and support group interventions was strongly associated with eventual VL Suppression in this group of initially unsuppressed adolescents (R.R = 7.5;C.I 2.544 - 22.360;p Conclusion: S

关键词： High Viral Load Enhanced Adherence Counselling Support Groups HIV Adolescents

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Surgical Management of Adrenal Tumors: Experience of Three Tertiary Hospitals in Yaounde, Cameroon

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Open Journal of Urology 2023年第11期13卷 495-516页

作者： Junior Barthelemy Mekeme Mekeme Etoa Ndzie agbor Orock Tanyi Jean Cedrick Fouda Achille Aurele Mbassi Philip Owon Abessolo Bright Che Awondo Marcel Junior Yon Mekeme Pierre Ongolo Zogo Pierre Joseph Fouda Eugene Sobngwi Zachary Sando Angwafo III Fru Department of Surgery and Subspecialties Faculty of Medicine and Biomedical Sciences University of Yaounde 1 Yaounde Cameroon Urology and Andrology Department Yaounde Central Hospital Yaounde Cameroon Endocrinology Department Yaounde Central Hospital Yaounde Cameroon Radiology Department Yaounde Central Hospital Yaounde Cameroun Anatomy Cytopathology Department Yaounde Gynecology Obstetrics and Pediatrics Hospital Yaounde Cameroon

Introduction: Surgical management of adrenal tumors has greatly improved over the past years, with laparoscopic adrenalectomy being the gold standard. However, Open adrenalectomy is indicated in large adrenal tumors, malignant tumors and large phaeochromocytomas. We report surgical outcomes of 18 cases of functional adrenal tumors from 2007 to 2022. Methods: We conducted a retrospective cross-sectional and descriptive study in three tertiary hospitals in Yaounde, Cameroon. We reviewed files of patients who underwent adrenalectomy over a period of 15 years from July 2007 to July 2022. Clinical and diagnostic components of adrenal tumors, indications and surgical outcomes were analyzed. Results: A total of 18 patients were included in our study. The average age of patients was 38.33 years, with a female-to-male sex ratio of 2:1. Weight gain (72.2%) was the most represented clinical sign. The secretory nature of tumor and malignancy represented 55.5% and 33.3% of the operative indications and all 18 (100%) of the patients had open adrenalectomy. Vascular injury was the most common intraoperative complication with 5.63%, while acute adrenal insufficiency (16.7%) was the most common post-operative complication. The average tumor size was 6.22 cm and the mean duration of hospitalization was 11.61 days. Adenoma 7 (38.9%) and adrenocortical carcinoma 5 (27.8%) were the frequent histological types. One patient died two months post-surgery from anemia-related complications. Conclusion: The success of adrenal surgery is linked to multidisciplinary patient care and the experience of the surgeon. Conventional surgery still has indications with satisfactory short- and medium-term results in our context.

关键词： Adrenal Tumors Surgical Management Outcome Yaounde

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Penetrating Abdominal Trauma: Experience in A Teaching Hospital, Calabar, Southern Nigeria

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International Journal of Clinical Medicine 2012年第5期3卷 426-430页

作者： Maurice Asuquo Mark Umoh Victor Nwagbara Gabriel Ugare Cyril agbor Emmanuel Japhet Department of Surgery University of Calabar Teaching Hospital Calabar Nigeria

Background: Penetrating abdominal trauma (PAT) typically involves the violation of the abdominal cavity by a gun-shot wound (GSW) or stab wound Recently several studies have favored a more conservative approach as opposed to mandatory exploratory laparotomy. Methods: Patients admitted in the University of Calabar Teaching Hospital (UCTH), Calabar, with PAT from January 2008 to December 2010 were prospectively studied based on a questionnaire. The total number of patients with PAT was compared with total number of emergencies, traumatic injuries and abdominal trauma seen during the same period. Results: A total of 48 patients presented with abdominal trauma: PAT 29 (60%) and blunt abdominal trauma (BAT) 19 (40%). The ages of the patients (28 male, 1 female) ranged from 3 - 62 years (mean 28.1 years). Gunshot wound (GSW) 11 (38%) patients, stab wound 8 (27.6%) patients and machete cut 4 (13.8%) patients ranked first, second and third respectively as causes of PAT. The commonest organ injury was perforation of the small intestine. Four (13.8%) patients were managed conservatively while 25 (86.2%) patients had laparotomy. The duration of admission ranged from 2 - 19 days (mean 10.5 days). Morbidity [surgical site infection (SSI)] and mortality were recorded in 2 (6.9%) and 3 (10.3%) patients respectively. Conclusion: Key areas that require attention have been highlighted. Revamping the ailing economy and gainful employment for youths are paramount areas that require prompt, dedicated and sustained intervention for reduction in violent crimes.

关键词： Penetrating Abdominal Trauma Pattern Management

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Blunt Abdominal Trauma in a Teaching Hospital, Calabar, Nigeria

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International Journal of Clinical Medicine 2012年第7期3卷 693-696页

作者： Maurice Asuquo Victor Nwagbara Mark Umoh Gabriel Ugare Cyril agbor Emmanuel Japhet Anthonia Ikpeme Department of Radiology University of Calabar Teaching Hospital Calabar Nigeria Department of Surgery University of Calabar Teaching Hospital Calabar Nigeria

Background: Road traffic injury remains a major source of blunt abdominal trauma (BAT). Road traffic injury and other forms of trauma have become a major health problem throughout the world especially in low and middle-income countries. In a previous study (2005-2007), abdominal trauma constituted 79 (4.8%) of trauma cases;BAT, 40 (53%) and penetrating abdominal trauma (PAT), 39 (47%). Effective policies on road safety should be developed based on local research and not on adapted models. We present this study to highlight the possible effect of legislation on the ban of the use of motorcycles on blunt abdominal trauma. Methods: Patients that presented to the University of Calabar Teaching Hospital, Calabar with BAT from 2008-2010 were prospectively studied based on a questionnaire following the legislation prohibiting the use of motorcycles. Results: A total of 12,083 patients presented during the study period, trauma patients totaled 4942 (41%), of this, 48 (1%) suffered abdominal trauma: BAT 19 (40%), penetrating abdominal trauma (PAT) 29 (60%). The age range of the patients was from 5 to 48 years (mean 26.6 years) with a M:F = 5.3:1. Road traffic accident (RTA) 17 (90%) [Motorvehicle 7 (37%), motorcycles 10 (53%)] was the commonest cause of trauma. The spleen was the commonest injured organ 14 (74%). Conclusion: Road traffic injury constitutes a public health challenge and the hallmark is prevention. Legislation prohibiting the use of motorcycles may have been responsible for the reduction in BAT.

关键词： Blunt Abdominal Trauma Prevention Motorcycles

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