Results 61 to 70 of about 17,651 (246)

The Impact of Simulated Microgravity on Mice With Breast Cancer [PDF]

فصلنامه علوم و فناوری فضایی
Exposure to microgravity induces significant changes in the morphology and biological properties of cancer cells. Globally, breast cancer is the most prevalent cancer among women and the fifth leading cause of cancer-related deaths. Increasing resistance
Morteza Alemi, Firooz Samadi, Alireza Madjid Ansari, Zahra Hajebrahimi   +3 more
doaj   +1 more source

A Study of Alterations in DNA Epigenetic Modifications (5mC and 5hmC) and Gene Expression Influenced by Simulated Microgravity in Human Lymphoblastoid Cells. [PDF]

PLoS ONE, 2016
Cells alter their gene expression in response to exposure to various environmental changes. Epigenetic mechanisms such as DNA methylation are believed to regulate the alterations in gene expression patterns.
Basudev Chowdhury, Arun Seetharam, Zhiping Wang, Yunlong Liu, Amy C Lossie, Jyothi Thimmapuram, Joseph Irudayaraj   +6 more
doaj   +1 more source

Simulated microgravity in biomedicine

Nauchno-prakticheskii zhurnal «Patogenez», 2018
Биомедицинские исследования в космосе способствуют прогрессу и появлению технологических разработок с большим прикладным потенциалом в медицине, фармакологии и тканевой инженерии. Исследования, выполняемые в условиях микрогравитации, являются важной частью космической биологии и физиологии человека.
openaire   +2 more sources

Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit

Contributions to Plasma Physics, EarlyView.
ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik, H. M. Thomas, M. Kretschmer, M. Thoma   +3 more
wiley   +1 more source

Studying Planarian Regeneration Aboard The International Space Station Within The Student Space Flight Experimental Program [PDF]

, 2018
The growing possibilities of space travel are quickly moving from science fiction to reality. However, to realize the dream of long-term space travel, we must understand how these conditions affect biological and physiological processes.
Bartee, C., Collins, Eva-Maria S., Hagstrom, D., Vista SSEP Mission 11 Team,   +3 more
core   +2 more sources

Experimental Factors and Techniques for Pool Boiling Heat Transfer Enhancement: A Critical Review

Heat Transfer, EarlyView.
ABSTRACT This review presents a comprehensive assessment of active strategies for enhancing pool boiling heat transfer, with a focus on techniques that do not rely solely on the boiling surface modification. It examines a broad range of methodologies including fluid additives, external fields, mechanical interventions, and thermal‐geometric tuning that
José E. Pereira, R. R. Souza, A. S. Moita   +2 more
wiley   +1 more source

Simulated microgravity improves maturation of cardiomyocytes derived from human induced pluripotent stem cells

Scientific Reports
Cardiomyocytes derived from human induced pluripotent stem cells (hiPSC-CMs) possess tremendous potential for basic research and translational application. However, these cells structurally and functionally resemble fetal cardiomyocytes, which is a major
Parvin Forghani, Aysha Rashid, Lawrence C. Armand, David Wolfson, Rui Liu, Hee Cheol Cho, Joshua T. Maxwell, Hanjoong Jo, Khalid Salaita, Chunhui Xu   +9 more
doaj   +1 more source

Dynamic scaling for the growth of non-equilibrium fluctuations during thermophoretic diffusion in microgravity [PDF]

, 2015
Diffusion processes are widespread in biological and chemical systems, where they play a fundamental role in the exchange of substances at the cellular level and in determining the rate of chemical reactions. Recently, the classical picture that portrays
Cerbino, Roberto, Donev, Aleksandar, Sun, Yifei, Vailati, Alberto   +3 more
core   +2 more sources

A Passive Low‐Frequency, High‐Sensitivity Diamagnetic Levitation Accelerometer

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Despite the great potential of diamagnetic levitation accelerometers in detecting low‐frequency and weak motion, there is still a demand to further enhance their sensitivity for geophysical and microgravity applications. In this study, a straightforward structural modulating approach is presented to enhance the sensitivity of diamagnetic ...
Yuanping Xu, Yang Wang, Lu Yang, Jin Zhou, Zhiqiang Zhang, Yanxiao Lei   +5 more
wiley   +1 more source

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

SmartBot, EarlyView.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen, Zeyuan Huang, Ying Yan, Xiaokang An, Zhikai Zhao, Jirong Lin, Xiangrong Zhao, Xianyuan Gao, Junyi Zong, Xuewen Jia, Zhipeng Yao, Jianliang Liao, Ning Ji   +12 more
wiley   +1 more source