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449 results on '"Brahim, H."'

4. A comprehensive comparative investigation of thick layer and microcrystalline CsPbBr3 perovskite material: optical and electrical properties.

Author

Brahim, H., Chiba, I., Hassen, F., and Mgaieth, R.

Subjects
OPTICAL materials, OPTICAL properties, PEROVSKITE, MICROCRYSTALLINE polymers, BAND gaps, ENERGY bands
Abstract

Lately, researchers have been investigating perovskite materials as they have attracted an enormous amount of attention due to their interesting properties. In this paper we are emphasizing the preparation method to obtain microcrystals or thick layers of CsPbBr3 perovskite materials. Prepared samples, on an ITO substrate, are characterized optically by the means of the stationary photoluminescence (PL) and the Time-Resolved photoluminescence (TRPL). Electrically, they are characterized by the meaning of I–V technique. The PL spectra of the microcrystal's samples (denoted S1) show the presence of two peaks. The peak associated with the highest energy level allowed the determination of the bandgap energy (Eg), yielding a value of 2.37 eV. On the other hand, the thick layer samples (denoted S2) revealed a single sharp peak with a band gap energy Eg = 2.33 eV. The TRPL of S1 has shown a carriers' lifetime τ = 37.2 ns. However, the S2 manifested a faster decay with a carriers' lifetime τ = 0.88 ns. By studying the I–V responses, we have revealed that the Schottky contacts are sensitive to light, and they show a normal hysteresis (NH) and inverted one (IH) depending on the type of the sample. In both sample types, the manifestation of a self-heating phenomenon has been observed. Notably, this observation represents a novel contribution to the existing literature, as, to the best of the authors' knowledge, such a phenomenon has not been previously reported in the study of CsPbBr3. [ABSTRACT FROM AUTHOR]

Published
2024
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7. Optineurin in patients with Amyotrophic Lateral Sclerosis associated to atypical Parkinsonism in Tunisian population.

Author

Kacem, I., Sghaier, I., Peverelli, S., Abida, Y., Ben Brahim, H., Ratti, A., Nasri, A., Ticozzi, N., Silani, V., and Gouider, R.

Subjects
AMYOTROPHIC lateral sclerosis, SPINAL muscular atrophy, ALZHEIMER'S disease, GENETIC drift, RECESSIVE genes
Abstract

Amyotrophic Lateral Sclerosis (ALS) is a heterogeneous disorder and the phenotypic variability goes far beyond the used clinical stratification parameter. Evidence has emerged that ALS may coexist with distinct neurodegenerative diseases in single cases. We aim to study the clinical features of two familial cases of ALS carriers of two distinct variants harbored in the Optineurin (OPTN) gene. We included definite familial ALS followed up in the Department of Neurology of Razi University Hospital, Tunisia, and selected according to Byrne criteria. Preliminary screening for the four main ALS genes (SOD1, C9ORF72, TARDBP, FUS) was conducted. Given the negative results, we proceeded to NGS target-re-sequencing with a custom panel including genes associated with ALS-FTD, Alzheimer's, and Parkinson's diseases. Both families are carriers of two different OPTN variants and they present very different ALS clinical features. The first family comprises two siblings diagnosed with ALS and Corticobasal syndrome (ALS-CBS) at an early age of onset and carriers of OPTN p.E135X in the homozygous state. The proband for the second family was diagnosed with ALS at an early age of onset presenting as progressive muscular atrophy with rapid progression. Genetic analysis revealed the presence of the homozygous variant p.R520H. Our findings highlight the peculiarity of genetic Tunisian drift. Indeed, genes with a recessive mode of inheritance may explain part of ALS diversity in clinical features. Therefore, the screening of the OPTN gene is highly recommended among inbreeding populations such as the Tunisian one. [ABSTRACT FROM AUTHOR]

Published
2024
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20. Les ostéites du pied diabétique

Author

Bougossa, R., primary, Marrakchi, W., additional, Kooli, I., additional, Aouam, A., additional, Toumi, A., additional, Loussaief, C., additional, Ben Brahim, H., additional, and Chakroun, M., additional

Published
2021
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40. Poster display II clinical general

Author

Gurgenyan, S. V. Svetlana, Vatinyan, S. K. H., Nikogosyan, K. G., Edilyan, L. B., Chobanyan, B. G., Lacourcière, Y., Marcel Dumont, M., Lefebvre, J., Poirier, L., Côté, C., Peix, A. Amalia, Alonso, O., Chae, I. H., Chung, J. K., Gutierrez, C., Kropp, J., Onsel, C., Silvasi, I., Llerena, L., Padhy, A. K., Garcia-Barreto, D., Trapaga, A., Asen, L., Infante, O., Ponce, F., Cabrera, L. O., Valiente, J., Tornes, F., Guerrero, I., Zayas, R., ones, M. A. Quin, Castro, J., Fayad, Y., Carrillo, R., Paz, A. De, Mehlsen, J. Jesper, Hædersdal, C., Daou, D. Doumit, Benada, A., Lebtahi, R., Idy-Peretti, I., Guludec, D. Le, Coaguila, C., Vilain, D., Leenhardt, A., Heinicke, N. Norbert, Benesch, B., Kaiser, T., Seegmüller, M., Schönberger, J., Eilles, C., Riegger, G. A. J., Holmer, S., Luchner, A., Kouris, N. T. Nikos, Kontogianni, D. D., Goranitou, G. S., Sifaki, M. D., Kalkandi, E. M., Grassos, H. E., Papoulia, E., Babalis, D. K., Moralidis, E. Efstratios, Spyridonidis, T., Arsos, G., Karakatsanis, K., Karatzas, N., Parameswaran, R. V. Ramanathapuram, Sundaram, P. S. Palaniswamy Shanmuga, Padma, S., Haridas, K. K., Zachariah, M., Kumar, S., Feola, M. Mauro, Leonardi, G., Peano, S., Bianchi, A., Dutto, P., Guala, E., Biggi, A., Uslenghi, E., Filardi, P. Pasquale Perrone, Pace, L., Dellegrottaglie, S., Corrado, L., Cafiero, M., Camerino, R., Maglione, A., Polimeno, M., Zarrilli, A., Chiariello, M., Giorgetti, A. Assuero, Gimelli, A., Marini, C., Schluter, M., Kusch, A., D’Aragona, I., Marzullo, P., Gimelli, A. Alessia, Stanislao, M., Zanco, P., Inglese, E., Bertelli, P., Valle, G., Tassone, F., Pepino, R., Francini, A., Garrone, O., Occelli, M., Merlano, M., Florimonte, L. Luigia, Pagani, L., Piatti, L., Butti, I., Maffioli, L. S., Casorelli, E., Dottore, F. Del, Gentili, G., Agostini, M., Pieri, P. L. Pierluigi, Milan, E., Giubbini, R. Raffaele, Mazzanti, M. Marco, Serenelli, M., Perna, G. P., Ferro, A., Duilio, C., Santomauro, M., Salvatore, M., Cuocolo, A. Alberto, Bertagna, F., Bosio, G., Terzi, A., Paghera, B., Kaneta, T. Tomohiro, Otani, H., Hakamatsuka, T., Fukuda, H., Nakazato, R. Ryo, Moroi, M., Kunimasa, T., Furuhashi, T., Sugi, K., Yasuhi, W. Watanabe, Akihiro, S., Yukawa, A., Ryu, K., Kimio, T., Yasuhiko, T., Nariaki, E., Yasunori, W., Akashi, Y. J. Yoshihiro, Musha, H., Kida, K., Itoh, K., Inoue, K., Kawasaki, K., Hashimoto, N., Nakazawa, K., Miyake, F., Fukuzawa, S. Shigeru, Ozawa, S., Inagaki, M., Sugioka, J., Okino, S., Matsuo, S. Shinro, Matsumoto, T., Nakae, I., Masuda, D., Horie, M., Mori, Y. Yoshitomo, Takahashi, K., Masai, M., Kawasaki, D., Kanemori, T., Okuda, S., Tanabe, K., Ohyanagi, M., Takahashi, K. Keiko, Masai, M., Mori, Y., Tanabe, K., OKuda, S., Toyama, T. Takuji, Hoshizaki, H., Seki, R., Isobe, N., Kawaguchi, R., Oshima, S., Taniguchi, K., Nakagawa, K. Keiichi, Sekine, T., Yamazaki, M., Komuro, I., Kim, K. M. Kyeong Min, Teramoto, N., Jino, H., Ohta, Y., Watabe, H., Hayashi, T., Iida, H., Nishimura, T. Tohru, Nagae, A., Morishima, K., Shigeyama, T., Shimoyama, K., Yoshino, H., Kawai, Y. Yuko, Jeong, S. Y., Lee, J. Jae-Tae, Seo, J. H., Bae, J. H., Ahn, B. C., Chae, S. C., Lee, K. B., Cho, I. Ihnho, Chun, K., Won, K., Lee, H., Hong, G., Park, J., Shin, D., Kim, Y., Shim, B., Pavlovic, J. Maksimovic, Peovska, I. Irena, Vavlukis, M., Gorceva, D. Pop, Majstorov, V., Alexanderson, E. Erick, Meave, A., Ricalde, A., Teresinska, A. Anna, Sliwinski, M., Konieczna, S., Szymanska, M., Hendzel, P., Juraszynski, Z., Debski, A., Szumilak, B., Kostkiewicz, M. Magdalena, Wilkolek, P., Pasowicz, M., Klimeczek, P., Pieniazek, P., Przewlocki, T., Pieculewicz, M., Tracz, W., Szot, W., Trebacz, J., Zmudka, K., Podolec, P., Dziuk, M. Miroslaw, Kazmierczak, A., Kot, E., Pietrzykowski, J., Cholewa, M., Coutinho, M. C. Maria Azevedo, Correia, M. J., Cantinho, G., Conceição, I., Bernardes, A., Silva, A., Gaspar, F., Cunha, J. A. Correia da, Lourenço, C. Cândida, Roque, C., Ferrer-Antunes, A., Ferreira, M., Providência, L. A., Lima, J., Abreu, A. Ana, Castillejos, L., Henriksson, I., Oliveira, L., Rosário, L., Geão, A., Pereira, E., Colarinha, P., Romero-Farina, G., Candell-Riera, J., Aguadé-Bruix, S. Santiago, Leon, G. De, Caresia, A. P., Mila-Lopez, M., Garcia-Alonso, C., Pifarre-Montaner, P., Negre-Buso, M., Castell-Conesa, J., Mestre-Fusco, A., Porta-Biosca, F., Aguadé-Bruix, S. Santiago, Muxi, A. Africa, Paredes, P., Ortin, J., Duch, J., Diaz-Infante, E., Fuertes, S., Orus, J., Mont, L. L., Pons, F., Pollack, C., Hellermann, J. P., Namdar, M., Siegrist, P. T. Patrick, Koepfli, P., Bartenstein, N., Schurr, U., Jenni, R., Kaufmann, P. A., Hassad, R. Rim, Hamami, H., Sellem, A., Brahim, H. Ben, Caglar, M. Meltem, Mahmoudian, B., Aytemir, K., Kahraman, S., Arýcý, M., Kabakcý, G., Karabulut, E., Akincioglu, C. Cigdem, Berman, D. S., Nishina, H., Hayes, S. W., Kavanagh, P. B., Friedman, J. D., Slomka, P. J., Germano, G., Entok, E. Emre, Cavusoglu, Y., Vardareli, E., Timuralp, B., Cheetham, A., Naylor, V., Ghiotto, F., McGhie, J., Al-Housni, M. B., Kelion, A. D. Andrew, Hutchings, F., Hinton-Taylor, S., Birkbeck, P., Thatikonda, S., Feldkamp, M., Rosamond, T. Thomas, Raza, M., Panjrath, G. S. Gurusher, Haider, A., Jain, D., Yang, A., Schumacher, R., Reynolds, J., Clark, E., Speiser, D., Schindel, M., Hackney, T., Vacek, J., Jindal, V. Vikas, Dim, U. Uzodinma, Hamburg, L. M., Mouradian, V., Nichols, K. J., Akinboboye, O. O., Snyder, K., Polepalle, D., DePuey, G. Gordon, Khattak, H., Friedman, M., Thompson, L., Thompson, R. C. Randall, McGhie, A. I., Moser, K., O’Keefe, J. H., Fritsch, N., Bateman, T. M., Mut, F., Vidal, I., Rener, A., Nuñez, M., Alvarez, B., and Beretta, M. Mario

Published
2005
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44. La brucellose ostéoarticulaire

Author

Belhaj Salah, N., primary, Kooli, I., additional, Ben Azaiez, M., additional, Marrakchi, W., additional, Ben Brahim, H., additional, Toumi, A., additional, Aouam, A., additional, and Chakroun, M., additional

Published
2020
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