Results 61 to 70 of about 2,170,748 (353)

Biomimetic Mineralization of Keratin Scaffolds for Enamel Regeneration

Advanced Healthcare Materials, EarlyView.
Keratin‐based films guide biomimetic enamel remineralization by promoting organized hydroxyapatite growth under physiological conditions. Advanced biophysical characterization confirms keratin's structural adaptability and mineral ions‐binding affinity, supporting mineral nucleation and hierarchical crystal assembly. This study establishes keratin as a
Sara Gamea, Elham Radvar, Dimitra Athanasiadou, Ryan Lee Chan, Giacomo De Sero, Ecaterina Ware, Sunie Kundi, Avir Patel, Shwan Horamee, Shuaib Hadadi, Mads Carlsen, Leanne Allison, Roland Fleck, Ka Lung Andrew Chan, Avijit Banerjee, Nicola Pugno, Marianne Liebi, Paul T Sharpe, Karina Carneiro, Sherif Elsharkawy   +19 more
wiley   +1 more source

3D Bioprinting‐Assisted Engineering of Stem Cell‐Laden Hybrid Biopatches With Distinct Geometric Patterns Considering the Mechanical Characteristics of Regular and Irregular Connective Tissues

Advanced Healthcare Materials, EarlyView.
A hybrid biopatch platform integrating 3D printed polymeric patterns with stem cell‐laden collagen bioinks is developed to mimic the mechanical properties of connective tissues. By tailoring geometric architectures, the constructs replicate anisotropic or isotropic mechanics, enhancing tissue‐specific regeneration.
Minjun Ahn, Gyu Tae Park, Arvind Kumar Shukla, Boguen Kwon, Jae Ho Kim, Eui‐Suk Sung, Byoung Soo Kim   +6 more
wiley   +1 more source

Fatigue‐Resistant Mechanoresponsive Color‐Changing Hydrogels for Vision‐Based Tactile Robots

Advanced Materials, EarlyView.
Mechanoresponsive color‐changing materials that can reversibly and resiliently change color in response to stress are highly desirable for diverse technologies in optics, sensors, and robots; however, such materials are rarely achieved. This work reports a fatigue‐resistant mechanoresponsive color‐changing hydrogel that exhibits reversible, resilient ...
Jiabin Liu, Wei Li, Yu She, Sean Blanchard, Shaoting Lin   +4 more
wiley   +1 more source

Impact of Strain in Free‐Standing PtSe2 in Scalable 2D MEMS

Advanced Materials, EarlyView.
Strain tuning of 2D materials such as PtSe2 opens new opportunities for micro‐ and nanoelectromechanical systems (MEMS/NEMS). This study introduces a fabrication method for free‐standing, as‐grown thin‐film channels that bypass mechanical transfer, offering a scalable, universal platform for strain engineering.
Stefan Heiserer, Natalie Galfe, Michael Loibl, Maximilian Wagner, Oliver Hartwig, Simon Schlosser, Silke Boche, William Thornley, Nick Clark, Kangho Lee, Tanja Stimpel‐Lindner, Cormac Ó Coileáin, Josef Kiendl, Sarah J. Haigh, George J. de Coster, Georg S. Duesberg, Paul Seifert   +16 more
wiley   +1 more source

Between ballots and bullets: Executive competitiveness and civil war incidence, 1976-2000

Revista Española de Ciencia Política, 2014
Although recent research has yielded some determining elements to civil war, the influence of politicalfactors on internal conflicts remains disputed.
Danilo Freire
doaj  

Impact of long-term civil disorders and wars on the trajectory of HIV epidemics in sub-Saharan Africa

SAHARA-J, 2004
From the mid-1970s, seven countries in sub-Saharan Africa have experienced civil disorders and wars lasting for at least 10 years. In two — Sierra Leone during 1991–2002, and Somalia from 1988 and continuing — adult HIV prevalence remained below 1%.
David Gisselquist
doaj   +1 more source

Water Oxidation to Hydrogen Peroxide Over a Super‐Aerophilic Graphite Catalyst

Advanced Materials, EarlyView.
Design of super‐aerophilic graphite catalyst capable of trapping in situ produced oxygen gas on its surface under the electrolyte environment. By so doing, it is able to moderate intermediate species binding, which is critical to enabling the two‐electron water oxidation reaction to hydrogen peroxide.
Umer Javed, Mike Tebyetekerwa, Cheng Tang, Xiangkang Zeng, Zhuyuan Wang, Kaige Sun, Jindi Yang, Ifra Marriam, Lijun Guo, Xin Sun, Aloka Kumar Sahu, Yanzhao Zhang, Arash Zamyadi, Aijun Du, Qin Li, Thomas E. Rufford, Xiwang Zhang   +16 more
wiley   +1 more source

The Search for Historical Continuity in the Assesment of the Civil War in Russia [PDF]

Tractus Aevorum, 2019
A century has passed since the beginning of the tragic events of the deadly Civil War in Russia in the early twentieth century, which not only dramatically changed the country, but also affected (albeit to a lesser degree) nearly all regions of the world.
Elena Iu. Prokofieva
doaj  

Advanced Electrode Materials for Efficient Hydrogen Production in Protonic Ceramic Electrolysis Cells

Advanced Materials, EarlyView.
Protonic ceramic electrolysis cells (PCECs) are a promising intermediate‐temperature hydrogen production technology, leveraging high proton conductivity in electrolytes yet constrained by insufficient catalytic activity and interfacial instability in fuel/air electrodes. This review systematically categorizes advanced electrode materials and critically
Zhipeng Liu, Lilin Zhang, Chunyue Joey Zheng, Yuan Zhang, Bin Chen, Zongping Shao, Jingjie Ge   +6 more
wiley   +1 more source

The Civil War in Russia – Definition, Causes, and Periodization [PDF]

Tractus Aevorum, 2019
A century has passed since the beginning of the tragic events of the deadly Civil War in Russia in the early twentieth century, which not only dramatically changed the country, but also affected (albeit to a lesser degree) nearly all regions of the world.
Vasilii Zh. Tsvetkov
doaj