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السجلات المعروضة 1681 -- 1690 من 1725
حضور علم النفس الحديث في منهج مالك بن بني في دراسة الحضارة
(
ملتقى الفلاسفة العرب
, 2023 , Article)
إن المتتبع لكتابات مالك بن نبي في تشخيصه لأزمة التخلف الحضاري في العالم الاسلامي، يجد أنه أدرك في وقت مبكر عدم إمكانية تشخيص أزمة العالم الإسلامي من خلال التحليل السطحي لها، لذلك انتقد الاتجاهين السائدين في العالم الإسلامي ...
Follow-Up and Comparative Assessment of SARS-CoV-2 IgA, IgG, Neutralizing, and Total Antibody Responses After BNT162b2 or mRNA-1273 Heterologous Booster Vaccination
(
Wiley
, 2024 , Article)
Background: Priming with ChAdOx1 followed by heterologous boosting is considered in several countries. Nevertheless, analyses comparing the immunogenicity of heterologous booster to homologous primary vaccination regimens ...
Preparation and characterization of chemically synthesized polyaniline–polystyrene blends as a carbon dioxide gas sensor
(
Elsevier
, 2013 , Article)
This correspondence presents a radically distinctive approach for preparing conducting polymer polyaniline–polystyrene (PANI–PS) blends doped with HCl by an in situ dispersion polymerization method. Generally, there are ...
Influence of additives on recycled polymer blends
(
Springer Nature
, 2013 , Article)
Polymer systems based on polymer waste offer promising way to increase recycling in the society. Since fillers play a major role in determining the properties and behavior of polymer composites, recycled polymers can also ...
Effectiveness of two and three doses of COVID-19 mRNA vaccines against infection, symptoms, and severity in the pre-omicron era: A time-dependent gradient
(
Elsevier
, 2024 , Article)
BackgroundVaccines were developed and deployed to combat severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. This study aimed to characterize patterns in the protection provided by the BNT162b2 and ...
Pathogenic Homocystinuria-Associated T236N Mutation Dramatically Alters the Biochemical Properties of Cystathionine Beta-Synthase Protein
(
MDPI
, 2024 , Article)
Background: Cystathione beta-synthase (CBS) T236N is a novel mutation associated with pyridoxine non-responsiveness, which presents a significant difficulty in the medical treatment of homocystinuria. Reported severe ...
Polyaniline/polyvinyl alcohol blends: Effect of sulfonic acid dopants on microstructural, optical, thermal and electrical properties
(
Elsevier
, 2014 , Article)
This correspondence reports the preparation and performance of different polyaniline–polyvinyl blends (PANI–PVA) doped with sulfonated acids. PANI is prepared by in situ dispersion polymerisation, and a subsequent extensive ...
High performance sulfonic acid doped polyaniline–polystyrene blend ammonia gas sensors
(
Springer Nature
, 2016 , Article)
In this work, we present a method of preparation and sensing measurement of four camphorsulfonic acid (CSA) doped polyaniline–polystyrene blends (PANI–PS), where PANI is obtained by dispersion polymerization and blending ...
Reduced erbium-doped ceria nanoparticles: One nano-host applicable for simultaneous optical down- and up-conversions
(
Springer Nature
, 2014 , Article)
This paper introduces a new synthesis procedure to form erbium-doped ceria nanoparticles (EDC NPs) that can act as an optical medium for both up-conversion and down-conversion in the same time. This synthesis process results ...
Improved electrical conductivity of carbon/polyvinyl alcohol electrospun nanofibers
(
Hindawi
, 2015 , Article)
Carbon nanofibers (CNFs) gained much interest in the last few years due to their promising electrical, chemical, and mechanical characteristics. This paper investigates a new nanocomposite composed of carbon nanofibers ...