8 results on '"H. L. Ha"'
Search Results
2. Detection and management of drug-resistant tuberculosis in HIV-infected patients in lower-income countries
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I. Izabelle, F. Ello, H. Ssemuwemba, S. Phiri, J. Olasode, Marie-Sylvie N’Gbeche, S. Kouadio, Jesper Eugen-Olsen, M. Mpoudi-Etame, Cristin Q. Fritz, S. Dapiap, J. Zoungrana, Antoine Jaquet, Aristophane Tanon, Rasmata Ouédraogo, N. T. Loan, E. J. Carter, Obaseki, F. F. Diakité, H. X. Zhao, Kulkanya Chokephaibulkit, Z. J. da Silva, Peter Aaby, Dewi Kumara Wati, David da Silva, L. Ayangma, K. Jjingo, P. Kim, Romanee Chaiwarith, James Ndirangu, Valériane Leroy, L. P. P. Atmikasari, N. Zobo, H. Chenal, Rita Lyamuya, Catherine C. McGowan, Keswadee Lapphra, Wanatpreeya Phongsamart, B. B. Mwebesa, Théodore Niyongabo, D. Katile, B. Ba, Matthias Egger, L. Mofenson, A. Mounkaila-Harouna, Boris Tchounga, M. Moh, Elom Takassi, Haby Signaté Sy, G. Sagbo, F. Kaeser, Eduardo Gotuzzo, Guillaume Bado, C. C. McGowan, S. Karcher, Constantin T. Yiannoutsos, V. H. Bui, Christopher J. Hoffmann, Didier K. Ekouevi, J. Akakpo, I. Azinyue, S. Kiertiburanakul, S. O. Koule, W. Bishai, Mariam Guindo Traoré, C. Williams, Elise Arrivé, A. Tapsoba, S. Bessekon, Patrick A. Coffie, F. Yuliana, A. Gougounon-Houéto, Somnuek Sungkanuparph, Y. Abo, Q. Vo, Praphan Phanuphak, M. B. Kokora, Kouadio Kouakou, Fla Kouéta, M. E. Dainguy, O. Benson, I. Soré, W. Prasitsuebsai, Harry Moultrie, C. Guehi, Beatriz Grinsztejn, T. Q. Du, L. Diecket Ahoussou, Z. Diallo, N. Traoré, Firas Wehbe, C. V. Do, J. Tatwangire, A. Kotosso, F. Soppi, Amabelia Rodrigues, Juan Sierra Madero, P. S. Sow, Rodolphe Thiébaut, I. Y. Malino, Moussa Seydi, Helena Rabie, A. Dienderé, Geoffrey Somi, Emmanuel Bissagnene, Elizabeth A. Bukusi, H. C. Traoré, David A. Cooper, N. M. Manga, P. Osakede, S. Ajayi, J. Paulo, Marguerite Timite-Konan, Andrew Edmonds, B. Diop, A. M. Traoré, W. Hiembo, A. Koïta, M. Faye, A. Azon-Kouanou, Christian Wejse, Claudia P. Cortes, T. Pety, N. Durier, Thira Sirisanthana, Camille Ndondoki, Karl-Günter Technau, J. S. Elvis Diby, G. Alim, M. D'Almeida, A. Komi, J. Bashi, J. M. Tine, D. Hawerlander, R. Ditangco, Akouda Patassi, A. Kalle, F. J. Zhang, Lorna Renner, N. H. Chau, Janet Giddy, G. Clouet, Samwel O. Ayaya, A. Sohn, Lars Østergaard, Sylvie Ouédraogo, Clement Adebamowo, Azar Kariminia, John Ssali, Joseph Drabo, M. Dembelé, Nicola Maxwell, Albert Minga, M. D.N. Amego, Wilai Kotarathititum, Christian Erikstrup, H. A. Traore, Kapella Zacharia Ngonyani, E. Geng, Lukas Fenner, A. Diagne, Marcelo Wolff, A. I. Assi, A. Sackey, A. R. Yao, M. F. Sami, Edmond Addi Aka, H. Adjide, Pagakrong Lumbiganon, Karen Malateste, L. Diero, M. Gansonré, P. N. An, A. H. Sohn, D. Meless, D. Avit-Edi, D. Walker, L. Hardwicke, A. S. Kaya, Véronique Mea-Assande, G. S. Gottlieb, Denis Padgett, Eric Balestre, Candida Medina, D. Amani, C. Kouakou, C. Shiboski, E Messou, B. G. Kariyare, M. Ballif, W. Wester, J. M. Gonsan, G. Gbadamassi, A. Ba, M. Fomba, Denis Malvy, R. Bantique, S. N. Owiafe, Andrew Kambugu, Festus Igbinoba, M. Y. Maiga, C. Ahomadegbé, A. Berthé, R. D. Gueye, C. C. Bassabi, Djimon Marcel Zannou, Olivia Keiser, Kara Wools-Kaloustian, K. E. Mensah-Zukong, A. Doring, C. Chimbetete, J. Rivenc, V. Andavi, F. Alihonou, S. Datté, S. Pestilli, T. Mengthaisong, Kathryn Anastos, A. D. Mbaye, D. Lameck, Claire Graber, J. Lewis-Kulzer, G. Reubenson, B. Siloué, Marcel Yotebieng, K. T.K. Dung, C. Ahouada, Severin Lenaud, J. Welbeck, D. Dickinsonn, L. Zoungrana, A. Avihingsanon, T. T. Cao, V. K. Nguyen, Morten Sodemann, J. C. Dusingize, B. Okwara, C. Lewden, H. Traoré, Patrick MacPhail, David C Boettiger, G. Oka-Berete, H. K. Truong, F. Houngbé, Robin Wood, Venerandah Nhandu, J. C. Azani, G. Wandeler, K. L. Issouf, K. C. Anzan, Andrea L. Ciaranello, Awachana Jiamsakul, M. T. Ha, K. Brou, M. Maskew, L. Tossa-Bagnan, B. Zerbo, P. Pakpame, Xavier Anglaret, Jean W. Pape, J. B. Essanin, A. Petit, A. Kouakou, E. Rabourdin, Orasri Wittawatmongkol, Daniela Garone, S. El-Hadj Djibril, S. Duda, C. Twizere, K. C. Chan, Annie J. Sasco, N. Sanmeema, N. V. Lam, J. Conrad, Q. T. Du, P. Tharnprisan, Z. Yao, A. Djeha, Siriatou A. Koumakpai, Joachim Gnokoro, I. Hodonou, Sabine Hermans, Timothy R. Sterling, C. Nchot, D. Minta, E. Yunihastuti, T. F. Eboua, T. Cissé, Revathy Nallusamy, Jeffrey S. A. Stringer, Dabis F, F. Bohossou, Brian Eley, E. Traore, R. McKaig, Matthew Law, Manhattan Charurat, G. M. Kouakou, Madeleine Amorissani Folquet, A. Mandalakas, Sophie Desmonde, S. Eholié, J. K. Assouan, Andrew Boulle, Tuti Parwati Merati, A. Koko Lawson-Evi, Eugene Mutimura, C. A. Bosse, M Dosso, Fred Nalugoda, T. T. Pham, T. Udomphanit, H. L. Ha, N. Kancheya, N. Han, J. Sehonou, S. N. Kangah, R. Huebner, A. Gasser, C. Gilbert, Appolinaire Horo, J. C. Kouakou, D. Yé, P. Acquah, A. Héma, Pope Kosalaraksa, Hans Prozesky, J. James, Fatoumata Dicko, P. Cahn, Moussa Doumbia, I. Oliviera-Souto, Morna Cornell, Elenore Judy B. Uy, G. Hounhoui, J. E. Carter, V. A. Yao, Adrien Sawadogo, B. Petersen, S. E. Reid, B. Goka, G. Carriquiry, M. A. Davies, P. Nipathakosol, J. Le Carrou, M. L. Lindegren, H. Dior, P. Cegielski, E. Baramperanye, Mariam Sylla, Anders Fomsgaard, P. Braitstein, S. T. Coulibaly, D. D. Cuong, C. N'Diaye, M. Kone, Dewa Nyoman Wirawan, A. Gitembagara, Niaboula Koné, K. Ruxrungtham, R. Bognounou, Aissatou Touré, A. Ephoévi-gah, Alex Lund Laursen, and Y. Atakouma
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Male ,Questionnaires ,West African ,Pediatrics ,Asia Pacific ,Antitubercular Agents ,HIV Infections ,Drug resistance ,rifampicin ,South Africa ,drug resistant tuberculosis ,Surveys and Questionnaires ,Tuberculosis, Multidrug-Resistant ,Central Africa ,antiretrovirus agent ,Human immunodeficiency virus infected patient ,clinical practice ,microbial sensitivity test ,Infectious Diseases ,priority journal ,urban population ,Female ,anti human immunodeficiency virus agent ,supply and distribution ,medicine.drug ,Pulmonary and Respiratory Medicine ,Adult ,isoniazid ,medicine.medical_specialty ,Tuberculosis ,Asia ,phenotype ,Anti-HIV Agents ,Developing country ,MDR-TB ,Microbial Sensitivity Tests ,purl.org/pe-repo/ocde/ford#3.03.08 [https] ,preventive medicine ,Article ,South and Central America ,socioeconomics ,medicine ,Humans ,controlled study ,human ,rural population ,drug sensitivity ,Developing Countries ,Directly Observed Therapy ,Preventive healthcare ,ART programs ,Caribbean ,business.industry ,questionnaire ,Drug resistant tuberculosis ,developing country ,CD4 lymphocyte count ,Central africa ,Central America ,South America ,medicine.disease ,major clinical study ,Latin America ,purl.org/pe-repo/ocde/ford#3.02.07 [https] ,Africa ,world health organization ,tuberculostatic agent ,business ,Rifampicin - Abstract
SETTING: Drug resistance threatens tuberculosis (TB) control, particularly among human immunodeficiency virus (HIV) infected persons.OBJECTIVE: To describe practices in the prevention and management of drug-resistant TB under antiretroviral therapy (ART) programs in lower-income countries.DESIGN: We used online questionnaires to collect program-level data on 47 ART programs in Southern Africa (n = 14), East Africa (n = 8), West Africa (n = 7), Central Africa (n = 5), Latin America (n = 7) and the Asia-Pacific (n = 6 programs) in 2012. Patient-level data were collected on 1002 adult TB patients seen at 40 of the participating ART programs.RESULTS: Phenotypic drug susceptibility testing (DST) was available in 36 (77%) ART programs, but was only used for 22% of all TB patients. Molecular DST was available in 33 (70%) programs and was used in 23% of all TB patients. Twenty ART programs (43%) provided directly observed therapy (DOT) during the entire course of treatment, 16 (34%) during the intensive phase only, and 11 (23%) did not follow DOT. Fourteen (30%) ART programs reported no access to second-line anti-tuberculosis regimens; 18 (38%) reported TB drug shortages.CONCLUSIONS: Capacity to diagnose and treat drug-resistant TB was limited across ART programs in lower-income countries. DOT was not always implemented and drug supplies were regularly interrupted, which may contribute to the global emergence of drug resistance.
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- 2014
3. A process optimization on high temperature electrolytic desulfurization in hot metal pretreatment using magnesit-based desulfurizer
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H. L. Han, L. W. Zhou, K. Liu, Z. H. Lu, and N. Luo
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desulfurization ,electrolysis ,hot metal ,pretreatment-temperature ,current ,Mining engineering. Metallurgy ,TN1-997 - Abstract
A magnesite-based desulfurizer was used for removing sulfur from hot metal by means of high temperature electrolysis technique. Through carrying out orthogonal factorial experiments it was found that the effect of the electric current on desulfurization is more significant than that of temperature. Results of single-tailed test show that when the temperature is constant, the desulfurization rate first increases with the increase of the current to a maximum value, and then, after dropping to the lowest level, gradually increases again as the current further increases. Finally, an optimum experimental condition is obtained as temperature of 1 400 °C and current of 1 A, achieving a desulfurization rate of 47,6 wt./% /min, which corresponds to a desulfurization efficiency of 62,6 %.
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- 2020
4. Efeito da variação estequiométrica na formação de ferritas BaM produzidas pelo método SHS e pelo método cerâmico tradicional Effect of stoichiometric variation on the BaM ferrite production by SHS and traditional ceramic processes
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M. T. Yasuda, H. L. Hasegawa, P. I. Paulin F., and M. R. Morelli
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hexaferrita ,síntese de pós ,reação de combustão ,hexaferrites ,traditional ceramic processes ,combustion reaction ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
As ferritas do tipo BaM são cerâmicas ferrimagnéticas, usualmente aplicadas em sistemas de gravação magnética e como magnetos duros. Possuem alta estabilidade química, resistência a corrosão e baixo custo de produção. Diante da sua crescente importância, foi estudado o efeito da contribuição do excesso de bário no processamento e formação da fase ferrita BaM por duas distintas rotas: processamento por mistura de óxidos e a síntese por reação de combustão (método SHS) com o uso de carbonato e nitrato de bário. Duas relações de concentração entre bário e ferro foram utilizadas, uma estequiométrica (n = Fe2O3/BaO = 6) e uma outra não estequiométrica (n = Fe2O3/BaO = 5,45). Os pós processados com excesso de bário resultaram na presença da fase intermediária de formação BaFe2O4, a qual permanece após altas temperaturas de calcinação e mesmo após a sinterização de compactos obtidos a partir dos pós calcinados. As conclusões foram baseadas em difratogramas de raios X das ferritas BaM em pó após calcinação e nas amostras conformadas e sinterizadas, além de imagens obtidas por microscopia eletrônica de varredura. Os resultados de medidas magnéticas indicam a diminuição da coercividade, da indução magnética remanente e dos valores de BH Máx dos pós obtidos com a contribuição do excesso de bário, provavelmente devido à presença da fase intermediária não magnética. Este efeito negativo foi mais efetivo nos pós processados pelo método SHS, chegando a uma redução de 28,8% no valor de coercividade e 35,1% no valor de BH Máx. Os pós de ferritas BaM obtidos pelo método cerâmico tradicional apresentaram maiores valores de coercividade (4,28 kOe) e BH Máx (0,87 MOe*emu/g) e a influência do excesso de bário na formulação foi menos prejudicial sobre suas propriedades magnéticas.BaM ferrite is a ferrimagnetic ceramic usually applied in high density recording media and as permanent magnet. This magnetic material shows high chemical stability, corrosion resistance and low production cost. This work shows the effects of barium excess on the BaM ferrite processing and on their magnetic properties. The use of barium excess had been used in some of ferrite industries to avoid the hematite and magnetite phase on the final products. In this work, barium ferrites were produced by traditional ceramic route and by combustion reaction (SHS) using barium nitrate and also barium carbonate. Two relations between barium and iron were used in all BaM ferrite processing, one stoichiometric (n = Fe2O3/BaO = 6) and another non-stoichiometric (n = Fe2O3/BaO = 5.45). All powders were submitted to different calcination conditions and analyzed by scanning electron microscopy, X-ray diffraction and magnetic characteristics. The presence of barium excess on the BaM ferrite resulted in the presence of the nonmagnetic BaFe2O4 phase that remains after the calcination and sintering processes. The BaFe2O4 phase is deleterious to the powder magnetic properties such as coercivity, remanence magnetic induction and BH Max. This damage was more significant on the BaM ferrite processed by SHS process, where the coercivity decreased in 28.8% and the BH Máx in 35,1%.The barium ferrite powder produced by traditional ceramic route shows high values of coercivity (4.28 kOe) and BH Max (0.87 MOe*emu/g), and the effect on the magnetic properties of barium excess was not so harmful than it was in the ferrite powders produced by SHS.
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- 2007
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5. Direct probing of semiconductor barium titanate via electrostatic force microscopy Sondagem direta de titanato de bário semicondutorpor meio de microscopia de força eletrostática
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S. M. Gheno, H. L. Hasegawa, and P. I. Paulin Filho
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microscopia de força eletrostática ,potencial elétrico ,barreiras ,titanato de bário ,electrostatic force microscopy ,electric potential ,barriers ,barium titanate ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
Electrostatic force microscopy (EFM) was used to directly probe surface potential in doped barium titanate semiconducting ceramics. EFM measurements were performed using noncontact scans at a constant tip-sample separation of 75 nm with varied bias voltages applied to the sample. The applied voltage was mapped up to 10 V and the distribution of potential across the sample showed changes in regions that matched the grain boundaries, displaying a constant barrier width of 145.2 nm.A microscopia de força eletrostática (EFM) foi usada para sondagem direta do potencial na superfície do titanato de bário dopado, o qual é cerâmica semicondutora. As medidas de EFM foram realizadas no modo não contato, mantendo a distância ponta-amostra de 75 nm constante, mas variando a voltagem bias aplicada à amostra de zero a 10 V. A distribuição do potencial na amostra mostrou mudanças em regiões próximas ao contorno de grão, exibindo largura de barreira constante de 145,2 nm.
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- 2007
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6. Modeling the fields of magneto-optical devices, including fringe field effects and higher order multipole contributions, with application to charged particle optics
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R. M. G. M. Trines, S. J. L. van Eijndhoven, J. I. M. Botman, T. J. Schep, and H. L. Hagedoorn
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Nuclear and particle physics. Atomic energy. Radioactivity ,QC770-798 - Abstract
A new method for the calculation of the magnetic field of beam guiding elements is presented. The method relates the calculation to measurement data of the magnetic field in a direct way. It can be applied to single beam guiding elements as well as to clusters of elements. The presented description of the magnetic field differs from the classical approach in that it does not rely on power series approximations. It is also both divergence free and curl free, and takes fringe field effects up to any desired order into account. In the field description, pseudodifferential operators described by Bessel functions are used to obtain the various multipole contributions. Magnetic field data on a two-dimensional surface, e.g., a cylindrical surface or median plane, serve as input for the calculation of the three-dimensional magnetic field. A boundary element method is presented to fit the fields to a discrete set of field data, obtained, for instance, from field measurements, on the two-dimensional surface. Relative errors in the field approximation do not exceed the maximal relative errors in the input data. Methods for incorporating the obtained field in both analytical and numerical computation of transfer functions are outlined. Applications include easy calculation of the transfer functions of clusters of beam guiding elements and of generalized field gradients for any multipole contribution up to any order.
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- 2001
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7. Electrolytic Oxidation of Semiconductor Surfaces
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H. L. Hartnagel
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Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Published
- 1977
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8. Report of the Committee on Technician Courses and Examinations
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H. L. Haslegrave
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Control engineering systems. Automatic machinery (General) ,TJ212-225 ,Technology (General) ,T1-995 - Published
- 1970
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