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Lu-Hf Isotopic Data of the Mbé-Sassa-Mbersi Tonalite (Central Cameroon Domain): Indicator of ca. 1.0 Ga Juvenile Tonian Magmatism in the Region

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Journal of Geoscience and Environment Protection 2021年第9期9卷 1-19页

作者： Alliance Nicaise Saha-Fouotsa Rigobert Tchameni Olivier Vanderhaeghe armin zeh Periclex Martial Fosso Tchunte Aurélien Eglinger Emmanuel Negue Nomo Pierre Barbey Department of Earth Sciences Faculty of Science University of Maroua Maroua Cameroon Department of Earth Sciences Faculty of Science University of Ngaoundéré Ngaoundéré Cameroon GET Université de Toulouse UPS CNRS IRD CNES Toulouse France KIT-Karlsruher Institut für Technologie Campus Süd Institut für Angewandte Geowissenschaften Abteilung Mineralogie und Petrologie Karlsruhe Germany Université de Lorraine CNRS GeoRessources Nancy France Department of Earth Sciences Faculty of Science University of Yaoundé I Yaoundé Cameroon Université de Lorraine CNRS CRPG Nancy France

The Pan-African/Brasiliano orogenic belts are a part of numerous Neoproterozoic orogenic belts that belong to the long-lived orgenic cycle that distancing phase started at the Tonian around 1.0 Ga. The Tonian magmatism fairly documented in the Neoproterozoic belts of Borborema Province (NE-Brazil), seemed so far inexistent in the Central African Orogenic Belt (CAOB) although these two belts were geologically correlated. Through the Lu-Hf geochronological analysis on zircon of tonalite, the present work, coupled with the previous data, suggests the existence of a Tonian age magmatism in the Central Cameroon Domain of the CAOB although the latter is much reworked. The Nguesseck tonalite outcrops in the northern part of the Mbé-Sassa-Mbersi region, in the northern edge of Central Cameroon Domain of the CAOB and in the Tcholliré-Banyo shear zone (TBSZ). The Lu-Hf data obtain on the zircon grains of this tonalite reveal juvenile HfTDM age of ca. 1.0 Ga. This age, combined to the previous geochemical data suggests that the protholites of this tonalite would have extracted from the source during the distancing phase (rifting and oceanization) of the Pan-african/Brasiliano orogeny at the early Neoproterozoic.

关键词： Mbé-Sassa-Mbersi Central Cameroon Domain Central African Orogenic Belt Tonian magmatism Lu-Hf Isotopic Data

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南极洲东部、沙克尔顿山区北部地球动力学演化：来自锆石u—Pb和Lu—Hf同位素的联合制约

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海洋地质 2009年第1期25卷 73-73页

作者： Thomas Will armin zeh Axel Gerdes Hartwig Frimmel Esther Schmadicke 蔡观强（译）吴峧岐（校对）地球动力学及矿物学研究室德国地质矿产研究所德国不详

u—Pb和Lu—Hf同位素调查显示沙克尔顿山区是一个复合地体，它不同程度的受到了古元古代Kimban造山作用、中元古代格伦维尔期造山作用和稍晚的晚元古代／寒武纪泛非洲造山作用的影响。我们可以加以区分具有各自的构造热力学历史、同位... 详细信息

u—Pb和Lu—Hf同位素调查显示沙克尔顿山区是一个复合地体，它不同程度的受到了古元古代Kimban造山作用、中元古代格伦维尔期造山作用和稍晚的晚元古代／寒武纪泛非洲造山作用的影响。我们可以加以区分具有各自的构造热力学历史、同位素特征以及地壳演化的独立地体。

关键词：同位素地球动力学演化山区南极洲锆石造山作用同位素特征

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The Empiric Use of Palm Kernel Oil in Neonatal Skin Care:Justifiable or Not?

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Chinese Journal of Integrative Medicine 2011年第12期17卷 950-954页

作者： Andreas Chiabi Maguerite Hortence Kenmogne Seraphin Nguefack Bolaji Obadeyi Evelyne Mah Franck zeh Meka Pierre-Fernand Tchokoteu Elie Mbonda Tetanye Ekoe Yaounde Gynaeco-Obstetric and Pediatric Hospital P.O.Box 4362Yaounder Faculty of Medicine and Biomedical Sciences University of Yaounde IP.O.Box 1364YaounderCameroon Department of Organic Chemistry Faculty of ScienceUniversity of Yaounde IP.O.Box 812YaounderCameroon Faculty of Medicine and Biomedical Sciences University of Yaounde 1P.O.Box 1364YaounderCameroon Health Logics P.O.Box 13777Ikeia LagosNigeria Yaounde Gynaeco-Obstetric and Pediatric Hospital Faculty of Medicine and Biomedical Sciences University of Yaounde IP.O.Box 1364Yaounder Cameroon

Palm kernel oil is a vegetable oil derived from Elaeis guineensis and widely used in neonatal settings for skin care. It is a good emollient with a beneficial effect in moisturizing the skin and preventing transdermal heat and water loss. However, it＇s putative roles in the prevention or treatment of fatty acid deficiency is still controversial. So is its function in the improvement of neurological development from its long- chain polyunsaturated fatty acids？ We set out in this review to verify whether its empiric use in this context has any scientific justification and is recommendable. Although there is evidence that it has emollient and moisturizing properties necessary for softening the skin and restoring elasticity, controversy subsists on its other nutritional and neurodevelopmental properties.

关键词： palm kernel oil neonate skin care

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Combining in-situ water quality and remotely sensed data across spatial and temporal scales to measure variability in wet season chlorophyll-a:Great Barrier Reef lagoon(Queensland,Australia)

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Ecological Processes 2013年第1期2卷 328-349页

作者： Michelle J Devlin Eduardo Teixeira da Silva Caroline Petus Amelia Wenger Daniel zeh Dieter Tracey Jorge GÁlvarez-Romero Jon Brodie Catchment to Reef Research Group TropWaterJames Cook UniversityTownsvilleQLD4811Australia Australian Research Council Centre of Excellence for Coral Reef Studies James Cook UniversityTownsvilleQLDAustralia School of Marine and Tropical Biology James Cook UniversityTownsvilleQLDAustralia

Introduction:Combining in-situ data from single-point time series with remotely sensed spatial data allowed a greater elucidation of changes in chlorophyll-a concentrations through wet season conditions in the Great Barrier Reef coastal ***:Single-point time-series data were collected from 2006 to 2012 during high river flow conditions to assess changes in phytoplankton biomass(measured as chlorophyll-a).Additionally,three flood plume water types,derived from classified true-colour Aqua moderate resolution imaging spectroradiometer(MODIS)images,were used to group single-point time-series data for the phytoplankton biomass ***:Survey data illustrate the heterogeneity of chlorophyll-a distribution over seasonal and inter-annual cycles and the difficulty in describing community responses through the wet *** spatial data demonstrate distinct regional differences throughout the Great Barrier *** high chlorophyll-a concentrations measured in flood plume waters immediately adjacent to the inshore,highly turbid‘inner’flood plume are a product of sufficient light,given most of the suspended solids have settled from the plume,and the availability of sufficient nutrients,which drive higher phytoplankton production and characterise the formation of secondary stage flood *** formation and extent of these secondary flood plumes were mapped using MODIS true-colour satellite *** distance and the location of the secondary plume water are reliant on flow,coastal hydrodynamics,and biological ***:The combination of in-situ data and remotely sensed data provides information on the complexity of these coastal processes during the wet season and offers managers a more comprehensive understanding of the extent of nutrient enrichment in the Great Barrier Reef coastal area and the potential influence of flood plumes on coastal marine ecosystems.

关键词： Chlorophyll-a Great barrier reef Phytoplankton Monitoring Remote sensing MODIS

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Characterizing the patient experience during neoadjuvant therapy for pancreatic ductal adenocarcinoma:A qualitative study

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World Journal of Gastrointestinal Oncology 2022年第6期14卷 1175-1186页

作者： Lena Stevens Zachary J Brown Ryan zeh Christina Monsour Sharla Wells-Di Gregorio Heena Santry Aslam M Ejaz Timothy Michael Pawlik Jordan M Cloyd Department of Surgery The Ohio State University Wexner Medical CenterColumbusOH 43210United States Department of General Surgery University of Pittsburgh Medical CenterPittsburghPA 15213United States Department of Psychiatry Center for Palliative CareThe Ohio State University Wexner Medical CenterColumbusOH 43210United States

BACKGROUND Neoadjuvant therapy(NT)has increasingly been utilized for patients with localized pancreatic ductal adenocarcinoma(PDAC).It is the recommended approach for borderline resectable(BR)and locally advanced(LA)cancers and an increasingly utilized option for potentially resectable(PR)*** its increased use,little research has focused on patient-centered metrics among patients undergoing NT,including patient experiences,preferences,and recommendations.A better understanding of all aspects of the patient experience during NT may identify opportunities to design interventions aimed at improving quality of life;it may also facilitate the completion of NT and receipt of surgery,ultimately optimizing long-term *** To understand the experience of patients initiating and receiving NT to identify opportunities to improve neoadjuvant cancer care *** Semi-structured interviews of patients with localized PDAC during NT were conducted to explore their experience initiating and receiving *** took place between August 2020 and October *** to the descriptive nature of the research,questions were open *** were conducted over the phone,audio recorded and then *** interviews were coded by two independent researchers using NVivo 12,iteratively identifying themes until thematic saturation was *** integrative approach to qualitative analysis was used,utilizing both inductive and deductive *** A total of 12 patients with localized PDAC were *** with BR(n=7),PR(n=2),and LA(n=3)cancers participated in the *** patients indicated that choosing NT was the doctor’s recommendation,while most reported not being familiar with the concept of NT(n=11)and that NT was presented as the only option(n=8).Five themes describing the patient experience emerged:physical symptoms,emotional symptoms,coping mechanisms,access to care,and life *** most commonly cited recommendation for

关键词： Pancreatic ductal adenocarcinoma Neoadjuvant therapy Patient experience Patient-centered care Quality of life Qualitative research

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雄鹰与天使(长篇选译)

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世界文学 2006年第6期 7-19页

作者：朱丽·泽何宁

第二十章数数有几条鱼我首先想到的是,她看上去必定和过去一模一样。我到的时间有点儿早了,等了几分钟光景吧。我凭直觉抬头望去,正好是正确的方向,很快就发现了她。她正远远地从运河的另一端朝着桥走过来,显然不是从市中心那边过来的... 详细信息

第二十章数数有几条鱼我首先想到的是,她看上去必定和过去一模一样。我到的时间有点儿早了,等了几分钟光景吧。我凭直觉抬头望去,正好是正确的方向,很快就发现了她。她正远远地从运河的另一端朝着桥走过来,显然不是从市中心那边过来的。我认出了她闪亮、金黄的环形发辫,辫梢随着她

关键词：选译长篇天使雄鹰市中心

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Relevance and Compliance of Requests for Dental Panoramic Radiography Examination at Yaounde (Cameroon)

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Advances in Molecular Imaging 2020年第4期10卷 31-37页

作者： Armel Philippe Awana Ambroise Merci Seme Engoumou Mballa Amougou Jean Goni Ismaila Odile Fernande zeh Department of Biomedical Sciences University of Ngaoundere Ngaoundere Cameroon Yaounde Jamot Hospital Yaounde Cameroon Faculty of Medicine and Biomedical Sciences University of Yaounde I Yaounde Cameroon In-Vitro Fertilisation Yaounde Gynaecological Endoscopic Surgery and Human Reproductive Teaching Hospital Yaounde Cameroon Yaounde University Teaching Hospital Centre Yaounde Cameroon Yaounde Gynaecology Obstetrics and Pediatrics Hospital Yaounde Cameroon

Background: Research studies made in Cameroon on compliance and relevance in the various areas of imaging, show the failure to comply with administrative and clinical criteria. These research studies led to recommendations meant for result amelioration. However, the orthopantomogram (OPT) field remains less studied in that regard in Cameroon. Aim: Evaluate the relevance and compliance of examination requests for panoramic dental radiography. Setting and Design: It is a descriptive cross-sectional study with a consecutive sample of dental panoramic requests identified during the study period in 4 radiology centres of Yaoundé. Material and Methods: Variables studied here were the validity criteria of imaging examination. Request: Five of which are of administrative order (date of the request, requesting department, patient’s identity, patient’s age, applicant’s identity) and three of clinical order (anatomic region, reason for the examination and the purpose of the examination). Statistical Analysis: Chi-squared test was used with confidence interval of 95%. Results: Patient’s identity (name) was the criteria carrying the highest information (98.9%), followed by the name of the applicant physician (91.6%). Out of 179 requests analysed, 8.6% had complete information. 46.4% of requests had no indications. Dental surgeon was the top prescriber with a total of 112 (62.6%). Conclusion: The quality of dental panoramic requests was not optimal in Yaounde, with lack of precision mostly noted at the level of clinical criteria.

关键词： Compliance Relevance Request Panoramic Dental Orthopantomogram

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Epidemiologic, Clinical and Radiological Aspects of Male Urethral Strictures at the NgaoundéréRegional Hospital

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Open Journal of Radiology 2019年第2期9卷 115-124页

作者： Mathurin Neossi Guena Florent Zilbinkai Alapha Eric Lonang Wandji Odile Fernande zeh Joseph Gonsu Fotsing Department of Biomedical Sciences Faculty of Sciences University of Ngaoundéré Ngaoundéré Cameroon Imaging Service Ngaoundéré Regional Hospital Ngaoundéré Cameroon Faculty of Medicine and Biomedical Sciences University of Yaounde I Yaounde Cameroon Yaounde Gynaecology Obstetrics and Pediatrics Hospital Yaounde Cameroon

Background: Urethral stricture is a disabling condition that remains prevalent due to the upsurge of sexually transmitted infections and traumatic lesions of the urethra during trauma of the pelvis in humans. Objective: Describe the epidemiological, clinical and radiological presentations of male urethral strictures. Method: It was a cross-sectional and descriptive study during a one-year period from January to December 2017 including all male patients presenting for a urethrocystography examination, at the Ngaoundere Radiology and Medical Imaging Center who agreed to participate. The urethrocystography technique depended on patient’s condition and was either retrograde, anterograde, or following intravenous urography. The examinations were performed with GE X-ray equipment using Kodak Dry View CRs. The interpretation was performed by a radiologist with at least five years of experience. The variables studied were age, clinic, history, uretrocystography technique and results. The data were collected using a previously established data sheet and processed with Sphinx Plus2 V5 and Microsoft Excel 2010 software. Results: 39 patients were enrolled in this study;the average age of our patients was 43.8 years with extremes of 4 and 76 years. The 50 - 60 age group (30.7%) was the most affected. Infection (53.9%) and trauma (23.1%) were the most common etiologies;dysuria (38.5%) and diminution of urinary flow (30.8%) were the most patient’s complaint. Retrograde urethrocystography (66.7%) was the most performed technic. Minimal bleeding in 46.2% of patients was the most common incident during urethrocystography;76.9% of patients had a difficult urination and 7.7% an impassable urethral meatus. After interpretation, 84.6% of patients had urethral stenosis, which was associated with bladder diverticula (23%) and fistulas (15.3%). The stenosis was seated on membranous urethra (81.8%), tight type (45.4%), short (66.7%) and single (81.8%). The post-void residue was significant i

关键词： Stenosis Urethrocystography Male Urethra

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Utility, Appropriateness of Request and Report of Computed Tomography Scan for the Diagnosis of Paranasal Sinuses Pathologies in a Sub-Saharan Africa Urban Setting

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Open Journal of Radiology 2021年第4期11卷 175-186页

作者： Yann Chris Mannel Eng Armel Philippe Awana Ambroise Merci Seme Engoumou François Djomou Odile Fernande zeh Faculty of Medicine and Biomedical Sciences The University of Yaounde I Yaounde Cameroon Jamot Hospital Yaounde Cameroon Ear Nose and Throat Unit Yaoundé University Teaching Hospital Yaounde Cameroun Yaoundé Gyneco-Obstetrical and Pediatric Hospital Yaounde Cameroon

Background: Computed tomography (CT) Scan is the imaging of choice for the diagnosis of sino nasal (SN) pathologies in sub-Saharan African setting. However, it is often requested by non experienced practitioners. We aimed to describe the utility and the appropriateness of CT Scan request forms and results in the diagnosis of SN pathologies. Method: We conducted a retrospective cross-sectional study in four health facilities in Yaoundé, Cameroun, from October 2018 to September 2019. All patients to whom SN CT Scan was performed were called for an appointment. After informed consent, data on the appropriateness and conformity of the request form were collected and compared to the guidelines of the French society of radiology. CT Scan results were also collected and the quality of the report was evaluated. Results: A total of 206 SN CT Scan request forms and reports were included, with a mean patient age of 37.7 ± 16.1 years. The request form was conformed to guidelines in 8.3% of cases and was found appropriate in 62.6% of cases. No CT Scan report had all the items required, and 159 (77.2%) reports were useful. The most common diagnosis in patients with abnormal results was chronic sinusitis (49.5%) and SN polyp or polyposis (19.4%). Conclusion: Most of SN CT Scan requested were appropriate and useful. However, the conformity of request forms and reports to the guidelines is low. Suggesting the need for capacity building for the diagnosis of SN pathologies especially for non specialists like general practitioners and nurses.

关键词： Appropriateness Conformity CT Scan Request Form Report Sino Nasal Pathologies

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Routine prenatal ultrasonography: The pregnant woman’s expectations and perspectives on safety in a Central African obstetric population

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Open Journal of Obstetrics and Gynecology 2013年第7期3卷 573-576页

作者： Joshua Tambe Boniface Moifo Odile Fernande zeh Pascal Foumane Joseph Gonsu Fotsin Robinson Enow Mbu Obstetrics and Gynecology Department Faculty of Medicine and Biomedical Sciences The University of Yaounde 1 Yaounde Cameroon Obstetrics and Gynecology Department Gyneco-Obstetric and Pediatric Hospital Yaounde Cameroon Radiology Department Gyneco-Obstetric and Pediatric Hospital Yaounde Cameroon

Background: Pregnant women are important stakeholders regarding prenatal ultrasound (US) scanning. Their specific needs and preferences have to be ascertained by healthcare providers to ameliorate service delivery. Objective: To assess the pregnant woman’s expectations during routine prenatal US scan and her perspective ofUSsafety during pregnancy in a Central African obstetric population. Methods: A cross-sectional descriptive survey of consenting pregnant women who reported for routine prenatal US scan using an anonymous questionnaire. A convenient sample of 200 participants was adopted. Results: Thirty-three (16.8%) respondents (on a total of 196) declared they had never done anUSscan. One hundred and eleven (58.4%) on a total of 190 stated that they had not received any information on what ultrasonography is all about. Before theUSscan the respondents would like to receive information on the aim or purpose of ultrasonography, possible inconveniences or risks, and on how to prepare before the scan. The most reported expectations were assurance of the wellbeing of the fetus (58%), gender determination (44.5%) and information on fetal position (20.5%). Thirty-four respondents considered ultrasonography as not perfectly safe for the mother or the “baby”, with the relevant reasons being the use or production of some potentially harmful “rays”. Conclusion: Pregnant women would want to be assured of the wellbeing of the fetus, the gender and position during routine prenatal US. They however need to be informed of its purpose and safety.

关键词： Routine Prenatal US Expectations US Safety

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