Results 31 to 40 of about 5,609,198 (311)

InGaN multiquantum wells—problem of carrier injection

Scientific Reports
This study addresses the issue of effective carrier injection to quantum wells in laser diode structures. The nitride light emitting structures used in this study were fabricated by Metal-Organic Vapor Phase Epitaxy (MOVPE).
Agata Bojarska-Cieślińska, Łucja Marona, Szymon Grzanka, Ewa Grzanka, Piotr Perlin   +4 more
doaj   +1 more source

Intracranial Pressure—Theory of the Driving Pressure and a New Pressure Index

Neurologia medico-chirurgica, 1978
In order to understand the pathogenesis of increased intracranial pressure, the concept of the driving pressure (DP) from the intracranial vascular system was proposed. The DP consists of combined pressure continuously transmitted from the arterial pressure (ADP) and venous pressure (VP) systems.
IKEYAMA, Atsushi, MAEDA, Shigeru, NAGAI, Hajime, FURUSE, Masahiro, KAGEYAMA, Naoki   +4 more
openaire   +3 more sources

Effectiveness of Resistance Intradialytic Exercise Compared to Aerobic Intradialytic Exercise for Patients With Chronic Kidney Disease: A Randomized Controlled Clinical Trial

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida, Gisela Cristiane Miyamoto, Daniel da Costa Torres, Ian Setubal Reis Chaves, Jonas do Carmo Paschoalin, Braúlio Lima Nascimento, Luciana Dias Chiavegato   +6 more
wiley   +1 more source

Pressure-induced phase transitions of KTiOAsO4 by Raman spectroscopy

, 1998
Potassium titanyl orthoarsenate KTiOAsO4 has been studied by Raman spectroscopy up to 16 GPa. Three first-order pressure-induced phase transitions are inferred from Raman data. The first phase transition takes place at 3.
Zhou, F., Li, H. P., Tang, S. H., Shen, Z. X., Wang, X. B.   +4 more
core   +1 more source

Negative pressure wound therapy versus healing by secondary intention in pressure ulcers [PDF]

, 2017
Pressure ulcers are a highly prevalent source of morbidity with an equally high incidence of up to 38.0\% amongst different categories of healthcare institutions. Therefore, the management and therapeutic approach toward these often hospital- or facility-
Cirocchi, Roberto, Mutafchiyski, Ventsislav M, Georgi, Popivanov, Luigi Carlini, Randolph, Justus, Ventsislav M Mutafchiyski, Massimo, Lancia, Justus Randolph, Roberto Cirocchi, Popivanov Georgi, Andrea Boccolini, Boccolini, Andrea, Carlini, Luigi, Lancia Massimo   +13 more
core   +1 more source

Pressure-Modulated Host–Guest Interactions Boost Effective Blue-Light Emission of MIL-140A Nanocrystals

Nano-Micro Letters
Highlights The luminescence performance of MIL-140A is successfully improved via pressure treatment strategy with a significant increase of photoluminescence quantum yield from the initial 6.8% to 69.2%.
Ting Zhang, Jiaju Liang, Ruidong Qiao, Binhao Yang, Kaiyan Yuan, Yixuan Wang, Chuang Liu, Zhaodong Liu, Xinyi Yang, Bo Zou   +9 more
doaj   +1 more source

Pressure calibrations of high-pressure large-volume presses at HPSTAR [PDF]

Matter and Radiation at Extremes
Large-volume presses (LVPs) are widely utilized in diverse research fields—including high-pressure physics, chemistry, materials science, and Earth and planetary sciences—to investigate the physical and chemical properties of materials under extreme high-
Yongjiang Xu, 徐永江, Peiyan Wu, 吴培衍, Sheng Shang, 尚升, Xue Wang, 王雪, Taihang Li, 李钛航, Shuchang Gao, 高书畅, Shijie Lv, 吕世杰, Hang Cheng, 程行, Qianzhi Xu, 许潜智, Shang Lei, 雷尚, Jiajia Feng, 冯嘉嘉, Lei Zhao, 赵磊, Wim van Westrenen, Takayuki Ishii, 石井 貴之, Bin Chen, 陈斌, Lei Su, 苏磊, Yang Ding, 丁阳, Wenge Yang, 杨文革, Ho-Kwang Mao, 毛河光, Yanhao Lin, 林彦蒿   +38 more
doaj   +1 more source

Serum Myonectin Levels Are Positively Associated With Physical Function and Lower Frailty‐Related Limitation in Maintenance Hemodialysis Patients: A Cross‐Sectional Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Maintenance hemodialysis (MHD) patients frequently suffer from frailty, characterized by reduced physical function and poor prognosis. Myokines, such as myonectin, secreted by muscle, are emerging regulators of systemic health. This study investigated the relationship between serum myonectin, adipokines (adiponectin, omentin), and ...
Kenichi Kono, Yoshifumi Moriyama, Koji Ohashi, Naoya Otaka, Minako Tatsumi, Toyoaki Murohara, Noriyuki Ouchi, Satoru Oshima   +7 more
wiley   +1 more source

Theoretical and Experimental Determinations of the Hydrophilic–Lipophilic Balance (HLB) of Representative Oils and Lecithins

Colloids and Interfaces
The hydrophilic–lipophilic balance (HLB) is a valuable parameter used to determine the relative hydrophobicity of a compound based on its chemical structure. This semi-empirical parameter has been instrumental in formulating oil-in-water and water-in-oil
Gary Smejkal, Vera Gross, Alexander Lazarev   +2 more
doaj   +1 more source

An integrated dual-wave ultrasonic apparatus based on solid-state coupling for complete elastic characterization [PDF]

AIP Advances
Accurate determination of elastic moduli remains challenging for brittle and surface sensitive materials. Traditional ultrasonic techniques rely on liquid coupling media, which impedes shear wave transmission, and require complicated phase corrections ...
Zhuang Li, Xinglin Wang, Zeben Liu, Cun You, Qiang Tao, Qiang Zhou, Tian Cui, Pinwen Zhu   +7 more
doaj   +1 more source