Results 31 to 40 of about 21,879 (298)
Advanced Materials, EarlyView.Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang +5 more
wiley +1 more source
Les politiques agricoles face au paradigme du sous-peuplement en République du Congo
Espace populations sociétés, 2019 Successive outbreaks of food prices on world markets have weakened food-importation dependent countries to feed their populations. This is the case of the Republic of the Congo, an oil rentier state that has appealed to foreign agricultural investors to ...
Mélanie Favrot, Elisabeth Dorier
doaj +1 more source
Sixty Years Later: Africa’s Stalled Decolonization
Vestnik RUDN. International Relations, 2020 The year 1960 marked the moment when the number of nominally independent African countries on the continent rose from nine to twenty-six and is a symbolic indicator of when Africa began to emerge from the days of European colonization.
Ian Taylor
doaj +1 more source
Islam, Authoritarianism, and Underdevelopment
American Journal of Islam and Society, 2023 In 2019 Professor Ahmet Kuru published his acclaimed Islam, Authoritarianism, and Underdevelopment: A Global and Historical Comparison. I say ‘acclaimed’ not as an endorsement but merely to point to accolades it received, such as the jointly awarded and
Behar Sadriu
doaj +1 more source
Phase‐Pure and Size‐Tunable Tin Halide Perovskite Quantum Dots
Advanced Materials, EarlyView.A trioctylphosphine oxide modulated protocol allows for the synthesis and study of the optical properties of a broad library of tin halide perovskite quantum dots across multiple A‐ and X‐site compositions with precise size tuning while eliminating unwanted 2D phases.
Ole F. Dressler +7 more
wiley +1 more source
Advanced Materials, EarlyView.We developed a new series of monomeric (MY) and dimeric acceptors incorporating unfused (DY1) and fused (DY2) linkers, which establish a controlled self‐aggregation trend of MY > DY2 > DY1. The DY2‐based system yields a bulk‐heterojunction nanoparticle morphology that appears to balance phase separation and interfacial accessibility, consistent with ...
Jin‐Woo Lee +11 more
wiley +1 more source
Institutional Traps and Economic Growth
, 2008 This paper's point of departure is that low-quality institutions, concentration of political power, and underdevelopment are persistent over time. Its analytical model views an equal distribution of political power as a commitment device to enhance ...
Mark Gradstein
core +1 more source
Advanced Materials, EarlyView.A general, versatile laser‐shock synthesis process is reported to produce various bimetallic CuNi, CuFe, CuCo, and medium‐entropy CuFeCoNi heterostructures, in which crystalline metal nanoparticles are anchored to amorphous hydroxide supports. During nitrate reduction reaction, the heterostructures undergo dynamic amorphous/crystalline reconstruction ...
Weihua Guo +18 more
wiley +1 more source
What Hinders Economic Development in Africa? [PDF]
European Journal of Interdisciplinary Studies, 2017 This research makes an in-depth assessment of the underdevelopment conditions in the African continent. It reveals the extent of suffering in Africa, despite enormous resources across the entire region. The challenges before many of the African countries
Victor Nwaoba ITUMO
doaj
Topography‐Regulated Screening Platform for Myoblast Contact Guidance
Advanced Materials Technologies, EarlyView.This study develops a topography‐regulated screening platform (12 gradients in 96‐topography‐well plate) enabling analysis of skeletal muscle morphogenesis. The topography‐induced cell morphology changed, cell polarization, and myotube differentiation, establishing an evaluative framework for generating pathologically relevant myotube phenotypes to ...
Tianqi Feng +6 more
wiley +1 more source