Results 41 to 50 of about 48,027 (276)

Fluxional Monomers Remodel Crystallinity at Low Loadings in Diketopyrrolopyrrole Co‐Thienothiophene Conjugated Polymers

Angewandte Chemie, EarlyView.
Bullvalene is a fluxional molecule capable of adopting numerous conformations spontaneously; just like a Rubik's Cube. In this paper, we explore the incorporation of bullvalene into the backbone of a highly rigid conjugated polymer semiconductor and observe that the inherent fluxionality reduces average crystallite size.
Shine H. Huang, Peiguan B. Sun, Gopal Singh, Matthew J. Elardo, Abraham Herzog‐Arbeitman, Timothy L. Kelly, Matthew R. Golder, Helen Tran   +7 more
wiley   +2 more sources

Advanced machine learning approaches for predicting energy and fossil fuel consumption for green growth

Unconventional Resources
A large increase in energy usage has occurred due to rapid industrial growth and urbanization, which has resulted in environmental degradation and heavy reliance on the consumption of fossil fuels.
Song Li, Lei Luo, Jun Li
doaj   +1 more source

O problema do aro pulante e suas variações [PDF]

Revista Brasileira de Ensino de Física
Resumo Neste trabalho, analisamos e generalizamos um problema de mecânica clássica pouco explorado na literatura: o “aro pulante”. Em sua versão original, esse problema consiste em considerarmos um aro rígido e homogêneo, mantido em um plano vertical que
Marcella Kitzinger, João Octávio Oliveira-Cony, Gabriel Messias, Paulo Roberto Linhares, Carlos Farina de Souza   +4 more
doaj   +1 more source

Elastic–Plastic Modeling and Experimental Characterization of Granular Jamming Actuators

Advanced Engineering Materials, EarlyView.
Granular jamming enables rapid switching between soft and rigid mechanical states. Here, a reduced‐order elastic‐perfectly‐plastic beam framework captures pressure‐dependent loading, unloading, residual deformation, and hysteresis in jammed beams, while matching three‐point bending experiments across materials and geometries. The framework links design
Saheli Patel, Prashant K. Purohit, Jordan R. Raney   +2 more
wiley   +1 more source

Demonstration of a Two‐Electron Pathway in Piezoelectric Mechanochemistry: Synthesis and Mechanical Adaptation of Polythiourethane

Angewandte Chemie, EarlyView.
A mechano‐triggered polythiourethane (PTU) synthesis mediated by a two‐electron pathway. The polymerization proceeds efficiently (<1 h) under focused ultrasound, achieving >90% conversion without any conventional base catalyst. The approach demonstrates broad compatibility with various thiol/isocyanate monomer combinations, highlighting its synthetic ...
Yixiao Dong, Farsa Ram, John Brownridge, Thalia Haines, Pin‐Ruei Huang, María José Román‐Vasquez, Jun Wang, Aaron P. Esser‐Kahn   +7 more
wiley   +2 more sources

EFFECT AND PREVENTION OF DRUG/SUBSTANCE ABUSE AMONG SECONDARY SCHOOL STUDENTS IN NIGERIA: REPORT OF 2022 WORLD MENTAL HEALTH DAY IN ABEOKUTA OGUN STATE, SOUTH WEST, NIGERIA.

Student's Journal of Health Research Africa, 2023
Background:  Several studies have shown a high prevalence of drug and substance abuse across the Universities and Secondary schools in Nigeria.  AIM: To conduct an awareness program among Secondary School students in commemoration of Mental Health ...
Larry Salako, Nurudeen Oyekola Ibrahim, Sunday Mauton Amosu   +2 more
doaj   +1 more source

Expression of TTF-1 and OCT-4 in ARO/CD133^pos and ARO/CD133^neg cells.

, 2013
(A) qRT-PCR of TTF-1 mRNA expression in ARO/CD133pos and CD133neg cells; TAD-2 cell line was used as positive control. (B) Flow cytometry analysis of OCT-4A in ARO/CD133pos and ARO/CD133neg cells.
Alessandra Bommarito (180214), Antonina Coppola (180191), Pierina Richiusa (376162), Elvira Carissimi (180217), Vito Rodolico (62175), Giovanni Zito (180221), Monica Zerilli (376164), Marco Amato (376165), Angela Criscimanna (180225), Leonardo Russo (376163), Carla Giordano (180234), Giuseppe Pizzolanti (180194), Aldo Galluzzo (180229)   +12 more
core   +1 more source

Concentration‐Dependent Self‐Assembly and Nanoparticle Maturation of Reflectins

Advanced Functional Materials, EarlyView.
Within squid skin, structural coloration arises from iridophores whose Bragg reflector‐like ultrastructures contain high‐refractive‐index reflectin proteins. Coarse‐grained molecular dynamics simulations and dynamic light scattering measurements reveal how concentration modulates reflectin A2 self‐assembly.
Andrew H. Cannon, Albert L. Kwansa, Nikhil Kaimal, Arsenii Panteleev, Ashlynn Zhang, Loc Nguyen, Preeta Pratakshya, Alon A. Gorodetsky, Yaroslava G. Yingling   +8 more
wiley   +1 more source

INDIGENOUS/ CULTURAL/SPIRITUAL HEALING PRACTICES: A REPORT OF INTERACTION WITH TRADITIONAL HEALERS IN OGUN STATE SOUTH WEST NIGERIA.

Student's Journal of Health Research Africa, 2023
Background: Traditional belief systems in Africa impact the perceptions, attitudes, and management of mental illness. Cultural beliefs play a major role in the diagnosis and treatment of many mental health problems.
Larry Salako, Nurudeen Oyekola Ibrahim, Sunday Mauton Amosu   +2 more
doaj   +1 more source

Architected Bio‐Based Iontronic Skin With Dual‐Mode Pressure and Strain Sensing

Advanced Functional Materials, EarlyView.
Bio‐based acrylates in combination with an ionic liquid create 3D‐printed ionogels with compositionally tuneable mechanics and ionic conductivity. Gyroid architectures amplify low‐pressure sensitivity while preserving robust strain sensing, enabling dual‐mode detection of pressure and deformation.
Maksims Jurinovs, Madara Veseta, Fevzihan Basarir, Beatrise Silava, Eduards Bakis, Krisjanis Smits, Olesja Starkova, Jaana Vapaavuori, Sergejs Gaidukovs   +8 more
wiley   +1 more source