Results 111 to 120 of about 2,522,188 (370)

Self-collimated unstable resonator semiconductor laser [PDF]

, 1993
Self-collimation of the output is achieved in an unstable resonator semiconductor laser by providing a large concave mirror M sub 1 and a small convex mirror M sub 2 on opposite surfaces of a semiconductor body of a material having an effective index of ...
Lang, Robert J.
core   +1 more source

Addressing Economic Insecurities Can Improve Patient‐Reported Outcomes in Lupus

Arthritis Care &Research, Accepted Article.
Background Economic insecurities, such as food, housing, transportation, and financial challenges, are modifiable risk factors and influence patient‐reported outcomes (PROs) in systemic lupus erythematosus (SLE). We examined: 1) associations between economic insecurities and PROs; 2) the impact of screening and addressing economic insecurities during ...
Jay Patel, Tripti Singh, Meredith Ingersoll, Shelby Gomez, Amanda Weber, Sarah E. Panzer, Sancia Ferguson, Christie M. Bartels, Shivani Garg   +8 more
wiley   +1 more source

The Association of Air Pollution and Emergency Medical Service Seeking

Journal of Tehran University Heart Center, 2009
Background: There are some reports on the association between air pollution and myocardial infarction, arrhythmia, and mortality due to cardiac problems in susceptible individuals.
Soheil Saadat, Saeed Sadeghian, Saeed Sadeghian, Reza Hamidian, Mohammad Ali Najafi   +4 more
doaj  

Composite Electrospun Fibers Containing Optimized B‐ and Cu‐Doped Bioactive Glass Sol‐Gel Particles for Potential Soft Tissue Engineering Applications

Advanced Engineering Materials, EarlyView.
This article describes the preparation and characterization of poly(ε‐caprolactone) electrospun composite fibers incorporating sol‐gel‐derived bioactive glass particles doped with B and Cu. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier‐transform infrared spectroscopy, contact angle, acellular bioactivity, mechanical and ...
Elisa Piatti, Marta Miola, Liliana Liverani, Paolo Sartori, Enrica Verné, Aldo R. Boccaccini   +5 more
wiley   +1 more source

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

Advanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source

Multistep nucleation and growth mechanisms of organic crystals from amorphous solid states

Nature Communications, 2019
Little attention has been paid to the fundamental mechanism of molecular self-assembly into crystallised films or wires on surfaces. Here the authors use real time in-situ scanning probe microscopy to monitor the growth trajectories of organic ...
Hongliang Chen, Mingliang Li, Zheyu Lu, Xiaoge Wang, Junsheng Yang, Zhe Wang, Fei Zhang, Chunhui Gu, Weining Zhang, Yujie Sun, Junliang Sun, Wenguang Zhu, Xuefeng Guo   +12 more
doaj   +1 more source

Experimental Analysis and Physics‐Based Analytical Model on Twisted and Coiled Artificial Muscles

Advanced Engineering Materials, EarlyView.
Twisted and coiled artificial muscles made from silver‐coated nylon fibers are investigated through experiments and analytical modeling. The actuators achieve contractions up to 19.3% and specific work of 8 kJ kg−1, though efficiency remains limited (≈0.15%) by thermal losses.
Salvatore Garofalo, Chiara Morano, Leonardo Pagnotta, Luigi Bruno   +3 more
wiley   +1 more source

Assessment of serum magnesium levels in patients with Acute Coronary Syndrome presenting within 48 hours of onset of symptoms to the emergency department in a tertiary care hospital [PDF]

Journal of Clinical and Basic Research
Background: The aim of the study was to analyze serum magnesium (Mg) levels in patients with acute coronary syndrome (ACS) who presented within 48 hours of the onset of symptoms to the Emergency Department.
Linu SM, Nidhi K Mohan, Roopasree Sivam, Ampady S   +3 more
doaj  

Direct observation of single-molecule hydrogen-bond dynamics with single-bond resolution

Nature Communications, 2018
Hydrogen-bonds are widely found in many systems, such as DNAs and supramolecular assemblies, but it remains challenging to detect their dynamics at a molecular level. Here, Zhou et al.
Ce Zhou, Xingxing Li, Zhongliang Gong, Chuancheng Jia, Yuanwei Lin, Chunhui Gu, Gen He, Yuwu Zhong, Jinlong Yang, Xuefeng Guo   +9 more
doaj   +1 more source

Activation of Glutathione Peroxidase 4 as a Novel Anti-inflammatory Strategy

Frontiers in Pharmacology, 2018
The anti-oxidative enzyme, glutathione peroxidase 4 (GPX4), helps to promote inflammation resolution by eliminating oxidative species produced by the arachidonic acid (AA) metabolic network.
Cong Li, Xiaobing Deng, Xiaowen Xie, Ying Liu, Ying Liu, José Pedro Friedmann Angeli, Luhua Lai, Luhua Lai, Luhua Lai   +8 more
doaj   +1 more source