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Nano Research 2011年第11期4卷 1163-1173页

作者： Aniruddha Ray Xueding Wang Yong-Eun Koo Lee Hoe Jin Hah gwangseong Kim thomas Chen Daniel A. Orringer Oren Sagher Xiaojun Liu raoul Kopelman Biophysics University of Michigan Ann Arbor MI 48109 USA Department of Radiology University of Michigan Ann Arbor MI 48109 USA Department of Chemistry University of Michigan Ann Arbor MI 48109 USA Department of Neurosurgery University of Michigan Ann Arbor MI 48109 USA Institute of Acoustics Naniing University Nanjing 210093 China

Distinguishing a tumor from non-neoplastic tissue is a challenging task during cancer surgery. Several attempts have been made to use visible or fluorescent agents to aid in the visualization of a tumor during surgery. We describe a novel method to delineate brain tumors, using a highly sensitive photoacoustic imaging technique that is enhanced by tumor-targeting blue nanoparticles serving as a contrast agent. Experiments on phantoms and on rat brains, ex vivo, demonstrate the high sensitivity of photoacoustic imaging in delineating tumors containing contrast agent at a concentration much lower than needed for visualization by the naked eye. the limit of detection of the system for the nanoparticles is about 0.77 μg/mL in water （equivalent to 0.84 μmol/L Coomassie Blue dye）. the present exploratory study suggests that photoacoustic imaging, when used with strongly optical absorbing contrast agents, could facilitate cancer surgery intraoperatively by revealing the distribution and extent of the tumor.

关键词： Brain tumor surgery targeted nanoparticles F3 peptide Coomassie Blue dye photoacoustic imaging

湖南省3个主要稻瘟病区菌株的交配型分布及其生理小种测定(英文)

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中国水稻科学 2003年第3期17卷 260-264页

作者： raoul Bruno NgUEKO 沈瑛徐同浙江大学植物保护系中国水稻研究所农业部水稻生物学重点实验室浙江杭州310006 中国水稻研究所农业部水稻生物学重点实验室

20 0 1年 9月在湖南省 3个稻瘟病的主要发病县采集分离了 5 7个稻瘟病菌株 ,与法国国际农艺研究和发展中心提供的 4个标准菌株于稻谷粉琼脂培养基上对峙培养。结果表明 ,30 %和 12 %的测试菌株分别为交配型 1.1和交配型1 2 ,其余 6 0 %... 详细信息

20 0 1年 9月在湖南省 3个稻瘟病的主要发病县采集分离了 5 7个稻瘟病菌株 ,与法国国际农艺研究和发展中心提供的 4个标准菌株于稻谷粉琼脂培养基上对峙培养。结果表明 ,30 %和 12 %的测试菌株分别为交配型 1.1和交配型1 2 ,其余 6 0 %的测试菌株与 4个标准菌株中的任何一个均不能产生子囊果 ,即便是与田间新获得的两性菌株之间的对峙培养也不能产生子囊果。在所获 2 4个能育菌株中只有 5个为两性菌株 ,占 9%。各菌株在中国 7个鉴别品种上的测定共获 5群 2 0个小种 ,其中ZA和ZB为优势群 ,ZB15为优势小种。还就稻瘟病菌有性世代在田间存在与否进行了讨论。

关键词：湖南省稻瘟病区菌株交配型分布生理小种致病性

Prevalence of malocclusions and Normative Orthodontic treatment Need Using IOtN Index for Patients in Yalgado Ouédraogo teaching Hospital

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Open Journal of Stomatology 2017年第12期7卷 519-529页

作者： Youssouf Ouédraogo tiécoura Camara raoul Bationo raoul Bationo Loubna Bahije Jean Bertin Beugré Joseph Samba Diouf Papa Ibrahima Ngom Centre Hospitalier Universitaire Yalgado Ouédraogo Université Ouaga I Ouagadougou Burkina Faso Direction de la lute contre la maladie Ouagadougou Burkina Faso Service de chirurgie dentaire du camp Sangoulé Lamizana Ouagadougou Burkina Faso Faculté de médecine Dentaire Université Mohammed V Rabat Maroc UFRd’odonto-stomatologie Université Félix Houphouet Boigny Abidjan Cote D’Ivoire Institut d’odonto-stomatologie Université Cheikh Anta Diop Dakar Sénégal

Introduction: the assessment of health care needs must be reproducible, independent of the operator, hence the use of indexes like the Index of Orthodontic treatment Need (IOtN). the aim of this study was to assess both, the prevalence of malocclusions among patients received in the Dental Surgery Unitat Yalgado Ouédraogo teaching Hospital and their care needs according to IOtN index. materials and methods: It is a prospective, cross-cutting diagnostic study of malocclusions at Yalgado Ouédraogo teaching Hospital (CHUYO), conducted from January 1 to December 31, 2016. the examiner with an examination tray records on the 12- to 16-year-old patients’ medical recorded, the variables based on the polychromatic pictures series, the IOtN rule, and the dental health component table. Results: On the whole, 81 patients were included, with 60.5% of girls and 39.5% of boys. 16- and 12-year-old patients were dominant. the average age was 14.05 years old. Various types of malocclusions were encountered. the need for orthodontic care was 56.8%. For 14 patients, 17.28%, their aesthetic component score is higher than the assessment made by the orthodontist. Conclusion: Aesthetics was an important factor in the need for orthodontic care. the aesthetic deficit entails a psychological impact that should be taken into account in the assessment of care needs.

关键词： malocclusions Orthodontic Care IOtN Burkina Faso

Original Support of an after Piercing Lobular Keloid Scar: About a Case

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Journal of Cosmetics, Dermatological Sciences and Applications 2013年第3期3卷 30-31页

作者： Christiane Koudoukpo Hugues Adégbidi Spéro raoul Hounkpatin Félix Atadokpèdé Julienne téclessou Fabrice Akpadjan Bérénice Dégboé-Sounhin Hubert g. Yédomon Faculté de médecine de Parakou Université de Parakou Parakou Bénin Faculté des Sciences de la Santé de Cotonou Université d’Abomey-Calavi Cotonou Bénin

Keloids are tissue repair formed by exuberant fibrosis appearing after a skin wound, burn, vaccination or post inflammatory (folliculitis or acne lesion). this condition causes standard aesthetic prejudice to those who are affected. Its management is difficult and its evolution meshes recurrences. We report here a case of giant keloid in the right ear lobe after a piercing and its support.

关键词： Piercing Lobular Keloid Scar

Improving ecosystem services in farmlands:beginning of a long-term ecological study with restored flower-rich grasslands

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Ecosystem Health and Sustainability 2022年第1期8卷 399-405页

作者： András Báldi raoul Pellaton Áron Domonkos Bihaly Viktor Szigeti Eszter Lellei-Kovács András máté miklós Sárospataki Zoltán Soltész LászlóSomay AnikóKovács-Hostyánszki Lendület Ecosystem Services Research group Institute of Ecology and BotanyCentre for Ecological ResearchVácrátótHungary Department of Zoology and Ecology Institute of Wildlife Management and Nature ConservationHungarian University of Agriculture and Life SciencesGödöllőHungary Dorcadion Ltd KecskemétHungary

Biodiversity declines in an unprecedented way,mostly due to land use *** interventions proved to be one of the most effective tools to halt the decline,especially in ecosystems such as agricultural ***-based,locally adapted recommendations on grassland restoration,however,are often missing,so we present a novel approach for such interventions that can be implemented anywhere and that are based on scientific *** a recently started long-term field ecological study,we established 0.5 ha wildflower parcels,using a diverse local seed mixture of 32 insect-visited plant species in Central European agricultural landscapes in *** focus is on the landscape-scale effects of this ecological intensification on ecosystem services such as crop yield,pollination and pest control,and the long-term monitoring of the successional *** aim is to showcase an effective restoration protocol that could serve as a model for future farm management,and provide much-needed evidence for policy on landscape ecological restoration of international relevance.

关键词： Ecological intensification field experiment protocol restoration wildflower strip

the Erectile Dysfunction among Congolese Hypertensive Patients

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World Journal of Cardiovascular Diseases 2018年第10期8卷 481-488页

作者： Stéphane méo Ikama Odzebe-Anani Sévérin Bernice mesmer Nsitou melvin Atipo-Ondongo Jospin makani thierry raoul gombet Suzy gisèle Kimbally-Kaky Department of Cardiology University Hospital Center of Brazzaville Brazzaville Congo Department of Urology University Hospital Center of Brazzaville Brazzaville Congo

the authors conducted an analytical cross-sectional study over a period of 3 months among hypertensive patients, in order to determine the frequency of the erectile dysfunction (ED), and to identify the predictive factors. It included treated hypertensive patients, presenting an ED, defined as the incapacity to obtain or maintain an erection sufficient for satisfactory sexual activity. On 265 hypertensive patients, 172 (65%) presented an ED. the average age was 58.2 ± 9.7 years. the associated cardiovascular risk factors were overweight/obesity in 99 cases (37.4%), sedentariness in 90 cases (34%), diabetes mellitus in 50 cases (19%), dyslipidemia in 12 cases (4.5%), and tobacco addiction in 6 cases (2.3%). Arterial hypertension (HtN), old of 6.7 ± 5.8 years, was treated by bitherapy in 129 cases (48.7%), and tritherapy in 102 cases (38.5%). the principal therapeutic classes used were ACE inhibitors/ARBs in 213 cases (81%), calcium antagonists in 205 cases (78%), thiazides in 137 cases (52.1%), and beta-blockers in 82 cases (31%). ED, severe in 124 cases (72%), and moderate in 48 cases (28%), consisted of a difficulty to maintain the erection in 78 cases (45.3%), to obtain the erection in 30 cases (17.4%), and the two partners in 64 cases (37.2%). In multivariate analysis, only the age, seniority of HtN, and the existence of diabetes mellitus were the predictive factors of ED. the early and effective assumption of responsibility of the AHt, as well as other cardiovascular risk factors whose diabetes, would make it possible to reduce the frequency of it, thus improving quality of life of the hypertensive patients.

关键词： Arterial Hypertension Erectile Dysfunction Frequency Predictive Factors Congo

Left Ventricular Hypertrophy and Predictive Factors among Congolese Hypertensive Patients

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World Journal of Cardiovascular Diseases 2018年第12期8卷 569-577页

作者： Stéphane méo Ikama Bernice mesmer Nsitou Jospin makani Louis Igor Ondze-Kafata Bertrand Fikhaem Ellenga-mbolla thierry raoul gombet Suzy gisèle Kimbally-Kaky Department of Cardiology Brazzaville University Hospital Center Brazzaville Congo

A cross-sectional study of hypertensive patients was carried out in Brazzaville between January 2011 and December 2013.?the objectives of the present study are to determine the different types of left ventricular hypertrophy (LVH)?and to identify the predictive factors of LVH. It included 556 hypertensive patients with LVH, characterized by left ventricular mass index (LVmI) > 135 g/m2?in men, and > 111 g/m2?in women. Patients’ sociodemographic data and echocardiographic parameters were gathered and analyzed. there were 342 males (61.5%) and 214 females (38.5%),?with?mean age 53.5 ± 11.5 years. the indications of the test were hypertension initial evaluation in 402 cases (72.3%), investigation of ischemic stroke in 62 cases (11.2%), heart failure in 58 cases (10.4%), dyspnea and chest pain in respectively 22 and 12 cases. Hypertension, old of 5.2 ± 4.5 years, was associated with overweight/obesity in 408 cases (73.4%), physical inactivity in 325 cases (58.5%), hypertension family history in 274 cases (49.3%), diabetes mellitus in 76 cases (13.7%), dyslipidemia in 63 cases (11.3%), tobacco use in 9 cases (1.6%). the prevalence of LVH was 49.4% and consisted into concentric LVH in 470 cases (84.5%), eccentric LVH in 70 cases (12.6%), and in 16 cases (2.9%),?it was a concentric left ventricular remodeling. Age, male gender, seniority of hypertension and treatment were predictive factors of LVH. the latter is the most predominant abnormality in the echocardiographic profile of Congolese hypertensive patients. Efficient management on hypertension will lead to reducing its morbidity and mortality.

关键词： Arterial Hypertension Left Ventricular Hypertrophy Predictive Factors Congo

Epidemiological, Clinical and Etiological Profile of Rhythmic Emergencies at the University Hospital of Brazzaville, Republic of Congo

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World Journal of Cardiovascular Diseases 2022年第6期12卷 342-352页

作者： Suzy gisèle Kimbally-Kaky thibaut Naïbe gankama Eric gibrel Kimbally-Kaky Jospin Karel makani Bijou moualengue Stéphane méo Ikama Soodougoua Baragou thierry raoul Alexis gombet Department of Cardiology and Internal medicine University Hospital of Brazzaville Brazzaville Republic of Congo Faculty of Health Sciences Marien Ngouabi University Brazzaville Republic of Congo Sylvanus Olympio University Hospital Lomé Togo Faculty of Health Sciences Lomé Togo Department of Emergency University Hospital of Brazzaville Brazzaville Republic of Congo

Objectives: to describe the epidemiological, clinical and etiological aspects of rhythmic emergencies at the University Hospital of Brazzaville. Patients and methods: this was a retrospective descriptive study conducted in the cardiology and internal medicine department of the University Hospital of Brazzaville from January 1, 2014 to June 30, 2016. Were included, all patients admitted for a severe rhythm disorder diagnosed on the surface electrocardiogram. Rhythmic emergency was defined as a severe rhythm disorder of abrupt onset and required rapid management. Data entry and analysis were performed with Epi Info software version 3.5.1. Results: During the study period, 2269 patients were hospitalized, including 138 for a rhythmic emergency. the frequency of rhythmic emergencies was 6.1%. the patients were divided into 76 women and 62 men (sex ratio = 0.81). the mean age of the patients was 63.1 ± 16.9 years (extremes: 17 and 91 years). the socio-economic level was low for 103 patients (74.6%), medium for 26 (17.7%), and high for nine (6.6%). the average time to consultation was 13.7 ± 12.3 days. On admission, the signs were: heart failure (103 cases;74.6%) including 22 acute cases;dyspnea (94 cases;68%);palpitations (38 cases;27.5%);functional impotence (13 cases;9.4%);collapse (nine cases;6.5%);chest pain (two cases;1.4%). the type of rhythmic emergency was: rapid atrial fibrillation (103 cases;74.6%), ventricular tachycardia (14 cases;10.1%), junctional tachycardia (10 cases;7.2%), rapid atrial flutter (10 cases;7.2%), tachysystole (one case;0.7%). the context of occurrence was: hypokalemia (8 cases;5.8%), drunkenness (two cases;1.4%), acute gastroenteritis (one case;0.7%). Cardiovascular risk factors were: hypertension (62 cases;45.2%), smoking (17 cases;12.1%), dyslipidemia (12 cases;8.7%), diabetes (11 cases;8%), obesity (10 cases;7.2%). Underlying heart disease was: dilated cardiomyopathy (40 cases;29%), hypertensive cardiomyopathy (26 cases;18.8%), valvulopa

关键词： Cardiac Rhythm Disorders Atrial Fibrillation Dilated Cardiomyopathy Brazzaville

Activated Carbons Based on Shea Nut Shells (<i>Vitellaria paradoxa</i>): Optimization of Preparation by Chemical means Using Response Surface methodology and Physicochemical Characterization

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Journal of materials Science and Chemical Engineering 2020年第8期8卷 53-72页

作者： Liouna Adoum Amola theophile Kamgaing Donald raoul tchuifon tchuifon Cyrille Donlifack Atemkeng Solomon gabche Anagho Laboratory of Noxious Chemistry and Environmental Engineering Department of Chemistry University of Dschang Dschang Cameroon Department of Chemical Engineering and Process Engineering National Higher Polytechnic School of Douala University of Douala Douala Cameroon

In this study, shea residues (Vitellaria paradoxa) dumped in the wild by the units processing almonds into butter were used in the production of activated carbons. Shea nut shells harvested in the locality of Baktchor... 详细信息

In this study, shea residues (m>Vitellaria paradoxam>) dumped in the wild by the units processing almonds into butter were used in the production of activated carbons. Shea nut shells harvested in the locality of Baktchoro, West tandjile Division of Chad were used as a precursor for the preparation of activated carbons by chemical activation with phosphoric acid (H3PO4) and sulphuric acid (H2SO4). Central Composite Design (CCD) was used to optimize the preparation conditions, and the factors used were concentration of activating agent (1 - 5 m), carbonization temperature (400°C - 700°C) and residence time (30 - 120 min). the studies showed that at optimal conditions the yield was 51.45% and 42.35%, while the iodine number (IN) was 709.45 and 817.36 mg/g for CAK-P (phosphoric acid activated carbon) and CAK-S (sulphuric acid activated carbon) respectively. these two activated carbons (ACs) which were distinguished by their considerable iodine number, were variously characterized by elementary analysis, pH at the point of zero charge (pHpzc), bulk density, moisture content, Boehm titration, Fourier transform infrared spectroscopy, BEt adsorption and scanning electron microscopy. these analyses revealed the acidic and microporous nature of CAK-P and CAK-S carbons, which have a specific microporous surface area of 522.55 and 570.65 m2·g−1 respectively.

关键词： Residue Shea Nuts Activated Carbon Optimization Central Composite Design