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Article ; Online: Association of Human Endogenous Retrovirus-W (HERV-W) Copies with Pemphigus Vulgaris.

Semsari, Hanieh / Babaei, Esmaeil / Ranjkesh, Mohammadreza / Esmaili, Nafiseh / Mallet, François / Karimi, Abbas

2023

Abstract: ... The extent to which, HERV-W env copies may be involved in the pathogenesis of pemphigus remains to be ... elucidated.: Aim: This study aimed to comparatively evaluate the relative levels of HERV-W env DNA copy ... included in the study. The relative levels of HERV-W env DNA copy numbers were then evaluated by qPCR using ...

Abstract	Background: Pemphigus is classified as a group of chronic, recurrent, and potentially fatal bullous autoimmune diseases that leads to blisters and skin lesions resulting from IgG antibodies and the loss of cellular connections in the epidermis. Human endogenous retrovirus (HERV) sequences and their products (RNA, cytosolic DNA, and proteins) can modulate the immune system and contribute to autoimmunity. The extent to which, HERV-W env copies may be involved in the pathogenesis of pemphigus remains to be elucidated. Aim: This study aimed to comparatively evaluate the relative levels of HERV-W env DNA copy numbers in the peripheral blood mononuclear cells (PBMCs) of pemphigus vulgaris patients and healthy controls. Methods: Thirty-one pemphigus patients and the corresponding age- and sex-matched healthy controls were included in the study. The relative levels of HERV-W env DNA copy numbers were then evaluated by qPCR using specific primers, in the PBMCs of the patients and controls. Results: Our results indicated that relative levels of HERV-W env DNA copy numbers in the patients were significantly higher than that in the controls (1.67±0.86 vs. 1.17±0.75; p = 0.02). There was also a significant difference between the HERV-W env copies of male and female patients (p = 0.001). Furthermore, there was no relationship between the HERV-W env copy number and disease onset (p = 0.19). According to the obtained data, we could not find any relationship between the HERV-W env copy number and serum Dsg1(p=0.86) and Dsg3 (p=0.76) levels. Conclusion: Our results indicated a positive link between the HERV-W env copies and pathogenesis of pemphigus. The association between clinical severity score and HERV-W env copies in the PBMCs as a biomarker for pemphigus needs further studies.
Language	English
Publishing date	2023-04-18
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	2064873-X
ISSN	1875-5666 ; 1566-5240
ISSN (online)	1875-5666
ISSN	1566-5240
DOI	10.2174/1566524023666230418114152
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Article ; Online: Directly Sputtered Molybdenum Disulfide Nanoworms Decorated with Binder-less VN and W

Sharma, Gagan Kumar / Hor, Abbas Ali / Hashmi, Safir Ahmad / Kaur, Davinder

ACS applied materials & interfaces

2023

Abstract: Considering the superior capacitive performance and rich redox kinetics, the two-dimensional (2D) layered molybdenum disulfide ( ... ...

Abstract	Considering the superior capacitive performance and rich redox kinetics, the two-dimensional (2D) layered molybdenum disulfide (MoS
Language	English
Publishing date	2023-11-03
Publishing country	United States
Document type	Journal Article
ISSN	1944-8252
ISSN (online)	1944-8252
DOI	10.1021/acsami.3c12393
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Article: Effect of Annealing Heat Treatment on the Composition, Morphology, Structure and Mechanical Properties of the W-S-N Coatings.

Yaqub, Talha Bin / Al-Rjoub, Abbas / Khalid, Hafiza Ayesha / Yaqoob, Khurram / Fernandes, Filipe / Cavaleiro, Albano

Materials (Basel, Switzerland)

2022 Volume 15, Issue 12

Abstract: ... in the literature. For the first time, in this study, the annealing of the W-S-N dry lubricant coatings was carried ... of the coatings. The W-S-N coatings were deposited by direct current (DC) reactive magnetron sputtering ...

Abstract	Alloyed-transition metal dichalcogenide (TMD) coatings have been under investigation as multi-environment lubricants for the past few decades. These coatings display very low coefficient of friction properties at elevated temperatures. Studies on the annealing of these low-friction coatings are missing in the literature. For the first time, in this study, the annealing of the W-S-N dry lubricant coatings was carried out to study its effects on the composition, morphology, crystal structure and hardness of the coatings. The W-S-N coatings were deposited by direct current (DC) reactive magnetron sputtering. The analysis was carried out for as-deposited, 200 °C and 400 °C annealed coatings. The as-deposited coatings have N content in the range of 0-25.5 at. %. The coatings are compact and the densification increased with the increase in N-alloying. All the coatings are crystalline except the highest N-alloyed coating which is X-ray amorphous. A maximum hardness of 8.0 GPa was measured for the coating alloyed with 23 at. % N. Annealing did not affect the composition and morphology of the coatings, while some variations were observed in their crystal structure and hardness. The maximum hardness increased from 8 GPa to 9.2 GPa after 400 °C annealing of the 23 at. % N-alloyed coating.
Language	English
Publishing date	2022-06-09
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2487261-1
ISSN	1996-1944
ISSN	1996-1944
DOI	10.3390/ma15124088
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Book ; Online: A 5 \mu W Standard Cell Memory-based Configurable Hyperdimensional Computing Accelerator for Always-on Smart Sensing

Eggimann, Manuel / Rahimi, Abbas / Benini, Luca

2021

Abstract: ... the design is easily cross-technology mappable. It achieves extremely low power, 5 $\mu W$ in typical ...

Abstract	Hyperdimensional computing (HDC) is a brain-inspired computing paradigm based on high-dimensional holistic representations of vectors. It recently gained attention for embedded smart sensing due to its inherent error-resiliency and suitability to highly parallel hardware implementations. In this work, we propose a programmable all-digital CMOS implementation of a fully autonomous HDC accelerator for always-on classification in energy-constrained sensor nodes. By using energy-efficient standard cell memory (SCM), the design is easily cross-technology mappable. It achieves extremely low power, 5 $\mu W$ in typical applications, and an energy-efficiency improvement over the state-of-the-art (SoA) digital architectures of up to 3$\times$ in post-layout simulations for always-on wearable tasks such as EMG gesture recognition. As part of the accelerator's architecture, we introduce novel hardware-friendly embodiments of common HDC-algorithmic primitives, which results in 3.3$\times$ technology scaled area reduction over the SoA, achieving the same accuracy levels in all examined targets. The proposed architecture also has a fully configurable datapath using microcode optimized for HDC stored on an integrated SCM based configuration memory, making the design "general-purpose" in terms of HDC algorithm flexibility. This flexibility allows usage of the accelerator across novel HDC tasks, for instance, a newly designed HDC applied to the task of ball bearing fault detection.
Keywords	Electrical Engineering and Systems Science - Signal Processing ; Computer Science - Artificial Intelligence ; Electrical Engineering and Systems Science - Systems and Control
Subject code	004
Publishing date	2021-02-04
Publishing country	us
Document type	Book ; Online
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Article ; Online: Photodegradation of Carbol Fuchsin Dye Using an Fe 2−x Cu x Zr 2−x W x O 7 Photocatalyst under Visible-Light Irradiation

Rund Abu-Zurayk / Aya Khalaf / Hussien A. Abbas / Rabab A. Nasr / Tarek S. Jamil / Abeer Al Bawab

Catalysts, Vol 11, Iss 1473, p

2021 Volume 1473

Abstract: Fe 2−x Cu x Zr 2−x W x O 7 (x: 0, 0.05, 0.015) nanoparticles were synthesized following the Pechini ... upon doping with W 6+ and Cu 2+ from 1.96 eV to 1.47 eV for Fe 1.85 Cu 0 . 15 Zr 1.85 W 0.15 O 7 . Carbol ... 1.85 W 0.15 O 7 . The degradation rate followed pseudo-first-order kinetics. The reusability ...

Abstract	Fe 2−x Cu x Zr 2−x W x O 7 (x: 0, 0.05, 0.015) nanoparticles were synthesized following the Pechini method and characterized via X-ray diffraction (XRD), transmission electron microscopy (TEM), and diffuse reflectance spectroscopy (DRS) measurements to be used as photocatalysts in colored water remediation. All of the prepared materials were crystallized in a cubic fluorite phase as the major phase. The band gap was reduced upon doping with W 6+ and Cu 2+ from 1.96 eV to 1.47 eV for Fe 1.85 Cu 0 . 15 Zr 1.85 W 0.15 O 7 . Carbol fuchsin (CF) dye was used to determine the photocatalytic degradation efficiency of the prepared catalysts. Degradation efficiency was directly proportional to the dopant’s concentration. Complete removal of 20 mg/L CF was achieved under optimal conditions (pH 9, and catalyst loading of 1.5 g/L) using Fe 1.85 Cu 0.15 Zr 1.85 W 0.15 O 7 . The degradation rate followed pseudo-first-order kinetics. The reusability for photocatalysts was tested five times, decreasing its efficiency by 4% after the fifth cycle, which indicates that the prepared Fe 1.85 Cu 0.15 Zr 1.85 W 0.15 O 7 photocatalyst is a promising novel photocatalyst due to its superior efficiency in dye photodegradation.
Keywords	photodegradation ; carbol fuchsin ; photocatalysts ; Chemical technology ; TP1-1185 ; Chemistry ; QD1-999
Subject code	290 ; 669
Language	English
Publishing date	2021-12-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
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Article ; Online: Assessing metal-metal multiple bonds in Cr-Cr, Mo-Mo, and W-W compounds and a hypothetical U-U compound: a quantum chemical study comparing DFT and multireference methods.

Li Manni, Giovanni / Dzubak, Allison L / Mulla, Abbas / Brogden, David W / Berry, John F / Gagliardi, Laura

Chemistry (Weinheim an der Bergstrasse, Germany)

2012 Volume 18, Issue 6, Page(s) 1737–1749

Abstract: ... Ar=2,6-(C(6)H(5))(2)-C(6)H(3), M=Cr, Mo, W) the effect of the Ar ligand on the M(2) core has been ... compared with the analogous [Ph-MM-Ph] (Ph=phenyl, M=Cr, Mo, W) compounds. A set of [M(2)(dpa)(4)] (dpa=2 ... 2'-dipyridylamide, M=Cr, Mo, W, U) compounds has also been investigated. All of the compounds studied ...

Abstract	To gain insights into the trends in metal-metal multiple bonding among the Group 6 elements, density functional theory has been employed in combination with multiconfigurational methods (CASSCF and CASPT2) to investigate a selection of bimetallic, multiply bonded compounds. For the compound [Ar-MM-Ar] (Ar=2,6-(C(6)H(5))(2)-C(6)H(3), M=Cr, Mo, W) the effect of the Ar ligand on the M(2) core has been compared with the analogous [Ph-MM-Ph] (Ph=phenyl, M=Cr, Mo, W) compounds. A set of [M(2)(dpa)(4)] (dpa=2,2'-dipyridylamide, M=Cr, Mo, W, U) compounds has also been investigated. All of the compounds studied here show important multiconfigurational behavior. For the Mo(2) and W(2) compounds, the σ(2)π(4)δ(2) configuration dominates the ground-state wavefunction, contributing at least 75%. The Cr(2) compounds show a more nuanced electronic structure, with many configurations contributing to the ground state. For the Cr, Mo, and W compounds the electronic absorption spectra have been studied, combining density functional theory and multireference methods to make absorption feature assignments. In all cases, the main features observed in the visible spectra may be assigned as charge-transfer bands. For all compounds investigated the Mayer bond order (MBO) and the effective bond order (EBO) were calculated by density functional theory and CASSCF methods, respectively. The MBO and EBO values share a similar trend toward higher values at shorter normalized metal-metal bond lengths.
Language	English
Publishing date	2012-02-06
Publishing country	Germany
Document type	Journal Article
ZDB-ID	1478547-x
ISSN	1521-3765 ; 0947-6539
ISSN (online)	1521-3765
ISSN	0947-6539
DOI	10.1002/chem.201103096
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Article ; Online: Coupled Coincidence Point and Coupled Common Fixed Point Theorems in Partially Ordered Metric Spaces with w-Distance

Mujahid Abbas / Dejan Ilić / Muhammad Ali Khan

Fixed Point Theory and Applications, Vol

2010 Volume 2010

Keywords	Mathematics ; QA1-939 ; Science ; Q ; DOAJ:Mathematics ; DOAJ:Mathematics and Statistics
Language	English
Publishing date	2010-01-01T00:00:00Z
Publisher	Hindawi Publishing Corporation
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: Resilient Strong Structural Controllability in Networks using Leaky Forcing in Graphs

Abbas, Waseem

2023

Abstract: This paper studies the problem of selecting input nodes (leaders) to make networks strong structurally controllable despite misbehaving nodes and edges. We utilize a graph-based characterization of network strong structural controllability (SSC) in terms ...

Abstract	This paper studies the problem of selecting input nodes (leaders) to make networks strong structurally controllable despite misbehaving nodes and edges. We utilize a graph-based characterization of network strong structural controllability (SSC) in terms of zero forcing in graphs, which is a dynamic coloring of nodes. We consider three types of misbehaving nodes and edges that disrupt the zero forcing process in graphs, thus, deteriorating the network SSC. Then, we examine a leader selection guaranteeing network SSC by ensuring the accuracy of the zero forcing process, despite $k$ misbehaving nodes/edges. Our main result shows that a network is resilient to $k$ misbehaving nodes/edges under one threat model if and only if it is resilient to the same number of failures under the other threat models. Thus, resilience against one threat model implies resilience against the other models. We then discuss the computational aspects of leader selection for resilient SSC and present a numerical evaluation.
Keywords	Electrical Engineering and Systems Science - Systems and Control
Subject code	000
Publishing date	2023-03-04
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: The impact of a chemical reaction on the heat and mass transfer mechanisms in a dissipative and radiative nanofluid flow over a nonlinear stretching sheet.

Abbas, W / Megahed, Ahmed M / Fares, Eman

Scientific reports

2024 Volume 14, Issue 1, Page(s) 7712

Abstract: This paper presents a numerical investigation of the flow of a non-Newtonian tangent hyperbolic nanofluid over a nonlinearly stretched surface, taking into account factors such as thermal radiation, prescribed surface temperature, and a chemical reaction ...

Abstract	This paper presents a numerical investigation of the flow of a non-Newtonian tangent hyperbolic nanofluid over a nonlinearly stretched surface, taking into account factors such as thermal radiation, prescribed surface temperature, and a chemical reaction mechanism. Furthermore, the analysis includes the consideration of both viscous dissipation and the influence of a magnetic field within a Darcy porous medium. A mathematical framework for addressing the issue, rooted in the principles of conserving momentum, energy, and mass. The MATHEMATICA tools were employed to apply the shooting technique in order to solve the modeled equations describing the temperature, velocity, and concentration fields of the proposed physical system. Graphs are used to illustrate how certain key parameters affect the profiles of concentration, velocity, and temperature. Data tables are utilized to display information pertaining to the local Nusselt number, local Sherwood number, and local skin friction coefficient. The present results have been confirmed through a comparison with previously published findings. This research holds significant importance as it focuses on the extensive utilization of tangent hyperbolic nanofluids in cooling electronic components that produce substantial heat during their operation. The observed pattern indicates that as the local Weisbsenberg number, magnetic number, local porous parameter, and power law index increase, there is a reduction in the boundary layer thickness. Conversely, in the instances of concentration and temperature distributions, an escalation in these parameters leads to an expansion of the boundary layer thickness.
Language	English
Publishing date	2024-04-02
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-024-57952-9
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Article: The Correlation between VEGF and CD34 Protein Marker and Pyogenic Granuloma.

Yousif, Aseel M / Abbas, Aws W / Bdaiwi, Ahlam T

Clinical laboratory

2024 Volume 70, Issue 4

Abstract: Background: A typical non-neoplastic connective tissue proliferations called a pyogenic granuloma. A vascular adhesion molecule used to assess angiogenesis is the CD34 marker. The primary memberof a family of growth factors, VEGF helps in generating and ...

Abstract	Background: A typical non-neoplastic connective tissue proliferations called a pyogenic granuloma. A vascular adhesion molecule used to assess angiogenesis is the CD34 marker. The primary memberof a family of growth factors, VEGF helps in generating and maintaining the lymphatic and blood circulation systems. Objective: The aim of the study was to know the correlation between VEGF and CD34 protein marker and pyogenic granuloma. Methods: Thirty-one formalin fixed paraffin embedded (FFPE) blocks were taken from female pyogenic granuloma patients ranging in age from 29 to 70. The IHC was used to identify VEGF and CD34 expression in the cytoplasm of the cells. Results: Seventeenout of 31 patients had VEGF positive expression. Twenty-sixout of 31 had CD34 positive expression and 5 with no expression (negative expression). Brown-stained cytoplasm showed high VEGF and CD34 expression, whereas blue stained cytoplasm showed no VEGF and CD34 expression in these cells. Conclusions: The results suggest the role of suchbiomarkers in the oral pyogenic granuloma pathogenesis, and it appears that CD34 and VEGF are valuable biomarkers in evaluating vascular and inflammatory diseases like pyogenic granuloma.
MeSH term(s)	Humans ; Female ; Granuloma, Pyogenic/diagnosis ; Granuloma, Pyogenic/etiology ; Granuloma, Pyogenic/metabolism ; Vascular Endothelial Growth Factor A ; Vascular Cell Adhesion Molecule-1 ; Neovascularization, Pathologic/complications ; Neovascularization, Pathologic/metabolism ; Neovascularization, Pathologic/pathology ; Antigens, CD34
Chemical Substances	Vascular Endothelial Growth Factor A ; Vascular Cell Adhesion Molecule-1 ; Antigens, CD34
Language	English
Publishing date	2024-04-11
Publishing country	Germany
Document type	Journal Article
ZDB-ID	1307629-2
ISSN	1433-6510 ; 0941-2131
ISSN	1433-6510 ; 0941-2131
DOI	10.7754/Clin.Lab.2023.230922
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