M. BOUNAB Sabrina

MCA

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Department

Departement of Physics

Research Interests

Physics Materials DFT and Thier Applications

Contact Info

University of M'Sila, Algeria

Email : sabrina.bounab@univ-msila.dz

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Recent Publications

2020

Transmission route and introduction of pandemic SARS‐CoV‐2 between China, Italy, and Spain

We present a phylodynamic and phylogeographic analysis of this new severe acute
respiratory syndrome coronavirus 2 (SARS‐CoV‐2) virus in this report. A tree of
maximum credibility was constructed using the 72 entire genome sequences of this
virus, from the three countries (China, Italy, and Spain) available as of 26 March 2020
on the GISAID reference frame. To schematize the current SARS‐CoV‐2 migration
scenario between and within the three countries chosen, using the multitype bearthdeath
model implemented in BEAST2. Bayesian phylogeographic reconstruction
shows that SARS‐CoV‐2 has a rate of evolution of 2.11 × 10−3 per sites per year (95%
highest posterior density: 1.56 × 10−3 to 3.89 × 10−3), and a geographic origin in
Shanghai, where time until the most recent common ancestor (tMRCA) emerged,
according to the analysis of the molecular clock, around 13 November 2019.While for
Italy and Spain, there are two tMRCA for each country, which agree with the assumption
of several introductions for these countries. That explains also this very
short period of subepidermal circulation before the recent events. A total of
8 (median) migration events occurred during this short period, the largest proportion
of which (6 events [75%]) occurred from Shanghai (China) to Spain and from Italy to
Spain. Such events are marked by speeds of migration that are comparatively lower as
compared with that from Shanghai to Italy. Shanghai's R0 and Italy's are closer to each
other, though Spain's is slightly higher. All these results allow us to conclude the need
for an automatic system of mixed, molecular and classical epidemiological surveillance,
which could play a role in this global surveillance of public health and decision‐making.
Citation

M. BOUNAB Sabrina, Bnazi Nabil, Bounab Abdelhakim, , (2020), "Transmission route and introduction of pandemic SARS‐CoV‐2 between China, Italy, and Spain", [national] Journal of Medical virology , Willy

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Genetic polymorphisms of blood donors in Algeria through blood groups ABO, RH, and Kell

tOur study included 2465 blood donors unrelated from both sexes, originating from Msila (Algeria), atMsila Blood Transfusion Center (CTS), with the aim of performing an anthropogenetic characterization ofthe population of M’sila, by studying the three-erythrocyte polymorphic systems ABO, Rhesus, and Kellwith their allele frequencies. This allowed us to demonstrate after a multi-varied comparative analysisthrough principal components analysis (PCA) and hierarchical cluster analysis (HCA) On the one hand,comparing the population of Msila to the different regions of Algeria where we found a genetic proximitywith the great south of Algeria going towards the south-east of Algeria. On the other hand, the comparativeanalysis of Msila’s population with other populations in the world based on historical, geographical andcultural profile, by building a tri-hybrid potential parenting model (North Africa, Mediterranean andMiddle orient) through the three blood systems, allowed us to identify four potential parents includingEgypt and Libya (North Africa) and Saudi Arabia and South Yemen (Middle East), Regarding the thirdstrand of our tri-hybrid model, we did not find any potential parental link with the northern shore ofthe Mediterranean (southern Europe) despite the historical and geographical link that exists. This studyallowed us to share the map of Algeria genetically into two blocks: a North block and a South block. It alsoallowed us to trace a retrograde genetic route through the time of the M’sila population, thus determiningthese potential parental origins.
Citation

M. BOUNAB Sabrina, Benazi Nabila, Leila Benazzi, , (2020), "Genetic polymorphisms of blood donors in Algeria through blood groups ABO, RH, and Kell", [national] Transfusion Clinique et Biologique , elsevier

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Density functional study of the structural, dynamic and Thermodynamic Proprieties of the III- Antimonides semiconductors (BSb, AlSb, GaSb, and InSb)

In the present contribution, structural, dynamic, and some thermodynamic properties of the III-Antimonides are studied using the density-functional perturbation theory (DFPT) within the local density approximation (LDA) in combination with the harmonic approximation Our results for the structural properties such as the lattice constant and the bulk modulus were found to agree well with the previous theoretical and experimental works. We have also calculated the phonon dispersion relation, and we found that our phonon calculations show that these compounds are dynamically stable in the zinc blende phase moreover our results of the optical and acoustic phonon frequencies at the high symmetry points Γ, X and L are in good agreement with the available theoretical and experimental data. In addition, the thermodynamic properties, including the free energy, internal energy, entropy, and the heat capacity at constant volume were predicted and discussed.
Citation

M. BOUNAB Sabrina, (2020), "Density functional study of the structural, dynamic and Thermodynamic Proprieties of the III- Antimonides semiconductors (BSb, AlSb, GaSb, and InSb)", [international] The First International Conference on Materials, Energy and Environment , eloued

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2019

Theoretical prediction of the structural, elastic, electronic, and thermodynamic properties of the Nowotny-Juza LiMgAsxSb1-x alloy

We present a theoretical study of the structural, elastic, electronic and thermodynamic properties of the LiMgAsxSb1-x alloy in α-phase, from the density functional theory framework (DFT) and the pseudopotentials with planes waves approach, using the alchemical mixing approximation available in the ABINIT code. The lattice parameter, bulk modulus and elastic constants for the parent compounds LiMgAs and LiMgSb were found to agree reasonably with the available experimental and theoretical data. The compositional dependence of the lattice constant, bulk modulus, the elastic constants (Cij) and energy gap shows deviations from Vegard’s law with differentiation of bowing parameters. We found that the LiMgAsxSb1-x alloy in α-phase are indirect semiconductors (Γ-X) for all concentrations. The origins of the gap bowing parameters were also examined using the approach of Zunger and co-workers. The variation of some thermodynamic proprieties as a function of the temperature for different Arsenic concentration have been predicted and discussed such as unit cell volume, Bulk modulus, Debye temperature, heat capacity at volume constant and thermal expansion coefficient.
Citation

M. BOUNAB Sabrina, (2019), "Theoretical prediction of the structural, elastic, electronic, and thermodynamic properties of the Nowotny-Juza LiMgAsxSb1-x alloy", [international] Computational Condensed Matter , elsevier

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2017

First- principles calculations of structural, electronic and optical of ternary semiconductor alloys ZAsxSb1-x (Z=B, Al, Ga, In)

We have investigated the structural and electronic properties of the BAsxSb1-x, AlAsxSb1-x, GaAsxSb1-x and InAsxSb1-x semiconductor alloys using first-principles pseudopotential approach based on the density functional perturbation theory under the virtual crystal approximation. Besides the optical properties have been calculated by using empirical methods. The ground state properties such as lattice constants, both bulk modulus and derivative of bulk modulus, energy gap, refractive index and optical dielectric constant have been calculated and discussed. The obtained results are in reasonable agreement with numerous experimental and theoretical data. The compositional dependence of the lattice constant, bulk modulus, energy gap and effective mass of electron for ternary alloys shows deviations from Vegard’s law where our results are in agreement with the available data in the literature.
Citation

M. BOUNAB Sabrina, (2017), "First- principles calculations of structural, electronic and optical of ternary semiconductor alloys ZAsxSb1-x (Z=B, Al, Ga, In)", [national] Journal of Electronic Materials , springer

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