Intensifying droughts render more Sahel drylands unsuitable for cultivation.

Two-fifth of the world's population will be confronted by dire land and water shortage for food production by 2050. Here we provide nuanced insights into the Sahel dryland dynamics and rationale behind its underperforming croplands amid climate extremes. We develop a gridded multi-criteria drought index for the growing season (June-October) and analyse its spatial and temporal degree of uniformity to designate the drought, climate and cultivable zones.

The impacts of total quality management practices in Algerian higher education institutions.

Algerian universities rely on total quality management. TQM is one of the most successful strategic options for improving the quality of higher education. In addition, achieving academic accreditation and progress in international rankings.

The Impact of e-Learning Systems on Motivating Students and Enhancing Their Outcomes During COVID-19: A Mixed-Method Approach.

e-Learning is a key strategy in the course of higher education to improve the results of the educational process and stimulate student motivation. The COVID-19 pandemic imposed on Algerian universities to adopt e-Learning systems to search for effectiveness and efficiency of academic approaches. This paper seeks to remedy these problems by analyzing the impact of e-Learning systems on student motivation and outcomes.

E-Learning Research Trends in Higher Education in Light of COVID-19: A Bibliometric Analysis.

This paper provides a broad bibliometric overview of the important conceptual advances that have been published during COVID-19 within "e-learning in higher education." E-learning as a concept has been widely used in the academic and professional communities and has been approved as an educational approach during COVID-19. This article starts with a literature review of e-learning.

Structure-based design, synthesis, molecular docking, and biological activities of 2-(3-benzoylphenyl) propanoic acid derivatives as dual mechanism drugs.

Purpose: 2-(3-benzoyl phenyl)propanohydroxamic acid (2) and 2-{3-[(hydroxyimino)(phenyl)methyl]phenyl}propanoic acid (3) were synthesized from non-steroidal anti-inflammatory drug, ketoprofen as dual-mechanism drugs.

Materials And Methods: Structures of the synthesized compounds were established by IR, (1)H NMR, and mass spectroscopy. Both compounds were screened for their anti-inflammatory activity in rat paw edema model and in vitro antitumor activity against 60 human tumor cell lines.

Design, synthesis and anti-Parkinsonian evaluation of 3-alkyl/aryl-8-(furan-2-yl)thiazolo[5,4-e][1,2,4]triazolo[1,5-c]pyrimidine-2(3H)-thiones against neuroleptic-induced catalepsy and oxidative stress in mice.

A series of 3-alkyl/aryl-8-(furan-2-yl)thiazolo[5,4-e][1,2,4]triazolo[1,5-c]pyrimidine-2(3H)-thiones (3a-3f) were synthesised in good yield and evaluated for their anti-Parkinsonian and neuroprotective potential. The structures of the synthesised compounds were confirmed on the basis of their spectral data and elemental analysis. All of the compounds were found to be active in haloperidol-induced catalepsy and oxidative stress in mice.

Synthesis and antitumor evaluation of novel diarylsulfonylurea derivatives: molecular modeling applications.

Some new ethyl 2-[3-(4-unsubstituted or 4-substituted phenylsufonyl)ureido]-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxylates 3a-c, 2-[3-(phenylsulfonyl)ureido]-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carbohydrazides 4a-f, 3-phenylsulfonyl-6,7,8,9-tetrahydro-5H-cyclohepta[1',2':4,5]thieno[2,3-d]pyrimidine-2,4(1H,3H)dione 5 and 3-(phenylsulfonyl)-1-[3-(alkylaminocarbonyl or substituted piperazinylcarbonyl)-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophen-2-yl]ureas 6a-d have been synthesized and tested for their antitumor activity. Among these compounds, 4a, 4c and 4d exhibited a broad spectrum antitumor activity with full panel (MG-MID) median growth inhibition (GI(50)) of 3.5, 4.

Investigation of true nanoemulsions for transdermal potential of indomethacin: characterization, rheological characteristics, and ex vivo skin permeation studies.

The aim of the present study was to investigate the potential of true nanoemulsions for transdermal delivery of indomethacin. Thermodynamically stable true nanoemulsions were characterized for morphology using transmission electron microscopy (TEM), droplet size, rheological characteristics, and refractive index. The rheological behavior for all true nanoemulsions was found to be Newtonian as viscosity was unchanged by increasing the rate of shear.

Synthesis of some urea and thiourea derivatives of 3-phenyl/ethyl-2-thioxo-2,3-dihydrothiazolo[4,5-d]pyrimidine and their antagonistic effects on haloperidol-induced catalepsy and oxidative stress in mice.

A series of 3-phenyl/ethyl-2-thioxo-2,3-dihydrothiazolo[4,5-d]pyrimidin-7-yl urea and thiourea derivatives were designed and synthesized. All the compounds have been evaluated for their antiparkinsonian activity in catalepsy induced by haloperidol in mice. A majority of the compounds exhibited significant antiparkinsonian activity after intraperitoneal administration.