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15,440 results on '"Ansar A."'

56. Genome sequencing reveals novel causative structural and single nucleotide variants in Pakistani families with congenital hypogonadotropic hypogonadism

Author

Zouaghi, Yassine, Choudhary, Anbreen Mazhar, Irshad, Saba, Adamo, Michela, Rehman, Khaleeq ur, Fatima, Ambrin, Shahid, Mariam, Najmi, Nida, De Azevedo Correa, Fernanda, Habibi, Imen, Boizot, Alexia, Niederländer, Nicolas J., Ansar, Muhammad, Santoni, Federico, Acierno, James, and Pitteloud, Nelly

Published
2024
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59. Assessment of mental well-being and its socio-economic determinants among older adults in the Rohingya refugee camp of Bangladesh

Author

Anwar, Afsana, Akter, Nahida, Yadav, Uday Narayan, Ghimire, Saruna, Bhattacharjee, Shovon, Eusufzai, Sumaiya Zabin, Mahumud, Rashidul Alam, Ali, A. R. M. Mehrab, Huda, Md Nazmul, Majumder, Md Saiful Islam, Zahid, Arnob, Mondal, Probal Kumar, Rizwan, Abu Ansar Md, Shuvo, Suvasish Das, Rosenbaum, Simon, and Mistry, Sabuj Kanti

Published
2024
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80. Modelling Dark Matter Halo Spin using Observations and Simulations: application to UGC 5288

Author

Ansar, Sioree, Kataria, Sandeep Kumar, and Das, Mousumi

Subjects
Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Dark matter (DM) halo properties are extensively studied in cosmological simulations but are very challenging to estimate from observations. The DM halo density profile of observed galaxies is modelled using multiple probes that trace the dark matter potential. However, the angular momentum distribution of DM halos is still a subject of debate. In this study we investigate a method for estimating the halo spin and halo concentration of low surface brightness (LSB), gas-rich dwarf barred galaxy UGC 5288, by forward modelling disk properties derived from observations - stellar and gas surface densities, disk scale length, HI rotation curve, bar length and bar ellipticity. We combine semi-analytical techniques, N-body/SPH and cosmological simulations to model the DM halo of UGC 5288 with both a cuspy Hernquist profile and a flat-core pseudo-isothermal profile. We find that the best match with observations is a pseudo-isothermal halo model with a core radius of $r_{c} = 0.23$ kpc, and halo spin of $\lambda$= 0.08 at the virial radius. Although our findings are consistent with previous core radius estimates of the halo density profile of UGC 5288, as well as with the halo spin profiles of similar mass analogues of UGC5288 in the high-resolution cosmological-magneto-hydrodynamical simulation TNG50, there still remain some uncertainties as we are limited in our knowledge of the formation history of the galaxy. Additionally, we find that the inner halo spin ($ r< 10$ kpc) in barred galaxies is different from the unbarred ones, and the halo spin shows weak correlations with bar properties., Comment: 29 pages including Appendix, 28 figures, accepted in MNRAS, comments are welcome from the community

Published
2023
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87. Peer-Review Statements

Author

Cangara, Abdul Razaq, Ismail, Ahmad, Ansar, Muhammad Chaeroel, Striełkowski, Wadim, Editor-in-Chief, Black, Jessica M., Series Editor, Butterfield, Stephen A., Series Editor, Chang, Chi-Cheng, Series Editor, Cheng, Jiuqing, Series Editor, Dumanig, Francisco Perlas, Series Editor, Al-Mabuk, Radhi, Series Editor, Scheper-Hughes, Nancy, Series Editor, Urban, Mathias, Series Editor, Webb, Stephen, Series Editor, Cangara, Abdul Razaq, editor, Ismail, Ahmad, editor, and Ansar, Muhammad Chaeroel, editor

Published
2024
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92. A Hierarchical Model of Information System Security Metrics in the Education Sector: An AHP-Based Approach

Author

Daghouri, Ansar, Mansouri, Khalifa, Rocha, Álvaro, Series Editor, Hameurlain, Abdelkader, Editorial Board Member, Idri, Ali, Editorial Board Member, Vaseashta, Ashok, Editorial Board Member, Dubey, Ashwani Kumar, Editorial Board Member, Montenegro, Carlos, Editorial Board Member, Laporte, Claude, Editorial Board Member, Moreira, Fernando, Editorial Board Member, Peñalvo, Francisco, Editorial Board Member, Dzemyda, Gintautas, Editorial Board Member, Mejia-Miranda, Jezreel, Editorial Board Member, Hall, Jon, Editorial Board Member, Piattini, Mário, Editorial Board Member, Holanda, Maristela, Editorial Board Member, Tang, Mincong, Editorial Board Member, Ivanovíc, Mirjana, Editorial Board Member, Muñoz, Mirna, Editorial Board Member, Kanth, Rajeev, Editorial Board Member, Anwar, Sajid, Editorial Board Member, Herawan, Tutut, Editorial Board Member, Colla, Valentina, Editorial Board Member, Devedzic, Vladan, Editorial Board Member, Serrhini, Mohammed, editor, and Ghoumid, Kamal, editor

Published
2024
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94. Leveraging Blockchain Technologies for Secure and Efficient Patient Data Management in Disaster Scenarios

Author

Khalid, Muhammad Irfan, Ahmed, Mansoor, Ansar, Kainat, Helfert, Markus, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Rocha, Álvaro, editor, Adeli, Hojjat, editor, Dzemyda, Gintautas, editor, Moreira, Fernando, editor, and Poniszewska-Marańda, Aneta, editor

Published
2024
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95. GDPR-Compliant Data Breach Detection: Leveraging Semantic Web and Blockchain

Author

Ansar, Kainat, Ahmed, Mansoor, Khalid, Muhammad Irfan, Helfert, Markus, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Rocha, Álvaro, editor, Adeli, Hojjat, editor, Dzemyda, Gintautas, editor, Moreira, Fernando, editor, and Poniszewska-Marańda, Aneta, editor

Published
2024
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96. Study of Key Agreement Protocol Implementation in Constraint Environment

Author

Goswami, Chandrashekhar, Gaikwad, Amit K., Sheikh, Ansar, Deshmukh, Swapnil, Mehare, Jayant, Utane, Shraddha, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Kaiser, M. Shamim, editor, Xie, Juanying, editor, and Rathore, Vijay Singh, editor

Published
2024
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97. Implementation of Principal Leadership Based on Bugis Local Wisdom Values ​​at SMA Negeri 1 Wajo

Author

Ansar, Ansar, Marzuki, Kartini, Restani, Ahmad, Striełkowski, Wadim, Editor-in-Chief, Black, Jessica M., Series Editor, Butterfield, Stephen A., Series Editor, Chang, Chi-Cheng, Series Editor, Cheng, Jiuqing, Series Editor, Dumanig, Francisco Perlas, Series Editor, Al-Mabuk, Radhi, Series Editor, Scheper-Hughes, Nancy, Series Editor, Urban, Mathias, Series Editor, Webb, Stephen, Series Editor, Mahmud, Ramlan, editor, Rahman, Abdul, editor, Hotimah, Hotimah, editor, Amran, Muhammad, editor, Patta, Rahmawati, editor, Musfirah, Musfirah, editor, Fatawuri Syamsuddin, Afdhal, editor, and Prima Hindiga Hermuttaqien, Bhakti, editor

Published
2024
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98. Research on Coding and Decoding Scheme for 5G Terminal Protocol Conformance Test Based on TTCN-3

Author

Jingyao, Cao, Yadav, Amit, Khan, Asif, Ansar, Sharmin, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Hassanien, Aboul Ella, editor, Castillo, Oscar, editor, Anand, Sameer, editor, and Jaiswal, Ajay, editor

Published
2024
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99. Precision Journalism: Digitalization and Research Approaches in Journalism Practices in Indonesian Online Media

Author

Suherman, Ansar, Hasrullah, Cangara, Hafied, Karnay, Sudirman, Striełkowski, Wadim, Editor-in-Chief, Black, Jessica M., Series Editor, Butterfield, Stephen A., Series Editor, Chang, Chi-Cheng, Series Editor, Cheng, Jiuqing, Series Editor, Dumanig, Francisco Perlas, Series Editor, Al-Mabuk, Radhi, Series Editor, Scheper-Hughes, Nancy, Series Editor, Urban, Mathias, Series Editor, Webb, Stephen, Series Editor, Pambuko, Zulfikar Bagus, editor, Setiyo, Muji, editor, Praja, Chrisna Bagus Edhita, editor, Setiawan, Agus, editor, Yuliastuti, Fitriana, editor, Muliawanti, Lintang, editor, and Dewi, Veni Soraya, editor

Published
2024
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