Results 61 to 70 of about 862,833 (296)

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

Molecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen, Lucrezia De Santis, Bret M. Stephens, Vincent Bernard, Jörg C. Kalff, Lara Braun, Phillipp Leyendecker, Johannes Röttgen, Daniel Weissinger, Anirban Maitra, Paola A. Guerrero, Alexander Semaan   +11 more
wiley   +1 more source

High-pressure neutron diffraction at ultra-low temperature

Physical Review Research
Neutron diffraction is a powerful tool in the study of quantum materials and associated emergent phenomena as it allows for direct detection of magnetic structure even at ultra-low temperatures.
Y. Wu, T. E. Sherline, J. J. Molaison, A. M. dos Santos, H. D. Zhou, H. B. Cao, J. J. Pierce, B. Haberl   +7 more
doaj   +1 more source

Influence of Ultra-low Temperature Thermal Fatigue on Microstructure and Mechanical Property of Z2CND18.12 Austenitic Stainless Steel

Yuanzineng kexue jishu
At present, ice plug technology is often used in the maintenance process of nuclear power plants to isolate part of the main pipeline and use refrigerant such as liquid nitrogen for ultra-low temperature treatment, so that the internal fluid is frozen to
ZHANG Yunhao1, , MA Yan1, ZHANG Tao2, LI Shijiang1, JIANG Xingyu1, LAN Yuning1, ZHU Huiping1, ZHOU Du2, TONG Zhenfeng1,
doaj   +1 more source

Geothermal power based ULTDH for cooling and heating purposes [PDF]

E3S Web of Conferences, 2019
Ultra-low temperature district heating systems facilitate use of waste and renewable heat sources. The article presents a possible scheme of operation and optimisation of small ultra-low temperature district heating system consisting of waste heat source,
Ciapała Bartłomiej, Janowski Mirosław
doaj   +1 more source

Superconducting noise-source for ultra-low temperatures

Technical Physics Letters, 2022
The device operates at temperatures <300 mK and comprises a hafnium microbridge and a superconducting aluminum tunnel junction both integrated into a common coplanar waveguide. The microbridge matches with a planar antenna and operates as an optical blackbody at frequencies 600-700 GHz.
null Shitov S. V., null Kim T. M.
openaire   +1 more source

Paramagnetic Reentrance Effect in NS Proximity Cylinders

, 2000
A scenario for the unusual paramagnetic reentrance behavior at ultra-low temperatures in Nb-Ag, Nb-Au, and Nb-Cu cylinders is presented. For the diamagnetic response down to temperatures of the order 15 mK, the standard theory (quasi-classical ...
Belzig, Bruder, Fauchère, Hoyt, Kazumi Maki, Kohn, Kosterlitz, Maki, Maki, Mota, Mota, Müller-Allinger, Stephan Haas, Visani   +13 more
core   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

Ultra-low threshold continuous-wave quantum dot mini-BIC lasers

Light: Science & Applications, 2023
Highly compact lasers with ultra-low threshold and single-mode continuous wave (CW) operation have been a long sought-after component for photonic integrated circuits (PICs).
Hancheng Zhong, Ying Yu, Ziyang Zheng, Zhengqing Ding, Xuebo Zhao, Jiawei Yang, Yuming Wei, Yingxin Chen, Siyuan Yu   +8 more
doaj   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch, Isabel Vogel, Sina Nokodian, Johanna Moeller, Antonia Blechschmidt, Vicky Hecht, Vanessa Kuentzel, Katharina Thiedig, Melissa Schwab, Oliver Schilling, Holger Bronger, Marion Kiechle, Viktor Magdolen, Tobias Dreyer   +13 more
wiley   +1 more source

ULT freezer performance and dual-temperature storage in a modern biobank: preserving sample integrity during transition

Journal of Laboratory Medicine
This study evaluated temperature stability, warm-up characteristics, and energy consumption of ultra-low temperature (ULT) freezers operated at −80 °C, −70 °C, and −60 °C, to support sustainable storage practices in biobanking.
Madsen Corrie L., Høgdall Estrid
doaj   +1 more source