Results 31 to 40 of about 301,621 (273)

X-ray spectral diagnostics of activity in massive stars [PDF]

, 2010
X-rays give direct evidence of instabilities, time-variable structure, and shock heating in the winds of O stars. The observed broad X-ray emission lines provide information about the kinematics of shock-heated wind plasma, enabling us to test wind-shock
Cohen, David H. Cohen, Emma E. Wollman, Feldmeier, Markova, Maurice A. Leutenegger, Puls, Puls, Repolust, Runacres, Taresch   +10 more
core   +1 more source

Spiral Chain O4 Form of Dense Oxygen

, 2012
Oxygen is in many ways a unique element: the only known diatomic molecular magnet and the capability of stabilization of the hitherto unexpected O8 cluster structure in its solid form at high pressure.
Akahama, Degtyareva, Eremets, Fujihisa, Fujii, G. Zou, Goncharenko, H.-k. Mao, L. Zhu, Lundegaard, Lv, Ma, Ma, Paier, Pickard, Wang, Weck, Y. Ma, Y. Wang, Z. Wang, Zhu   +20 more
core   +1 more source

Molecular determinants of resistance activation and suppression by Phytophthora infestans effector IPI-O. [PDF]

PLoS Pathogens, 2012
Despite intensive breeding efforts, potato late blight, caused by the oomycete pathogen Phytophthora infestans, remains a threat to potato production worldwide because newly evolved pathogen strains have consistently overcome major resistance genes.
Yu Chen, Zhenyu Liu, Dennis A Halterman
doaj   +1 more source

Assessment of water and sediment quality variation due to organic and conventionally irrigated pre-germinated rice-field cultivation

Revista Ambiente & Água, 2022
This study evaluated the water and sediment quality of samples collected from different points in organic (O1, O2, O3, and O4) and conventional (C1, C2, and C3) pre-germinated rice fields located in Viamão/RS.
Enio Sebastião Vicente de Jesus, Letícia Schönhofen Longoni, Luciano Kayser Vargas, Anelise Beneduzi   +3 more
doaj   +1 more source

Measurements and ab initio Molecular Dynamics Simulations of the High Temperature Ferroelectric Transition in Hexagonal RMnO3

, 2011
Measurements of the structure of hexagonal RMnO3 (R=rare earths (Ho) and Y) for temperatures significantly above the ferroelectric transition temperature (TFE) were conducted to determine the nature of the transition.
Coeure Ph., H. Y. Chen, Ismailzade I. G., J. Bai, K. H. Ahn, K. I. Pandya, Qian Q., S. B. Kim, S.-W. Cheong, T. A. Tyson, T. Wu   +10 more
core   +1 more source

Expanding Chemical Space of Nucleic Acid Nanoparticles for Tunable Antiviral‐Like Immunomodulatory Responses and Potent Adjuvant Activity

Advanced Functional Materials, EarlyView.
We introduce a nucleic acid nanoparticle (NANP) platform designed to be rrecognized by the human innate immune system in a regulated manner. By changing chemical composition while maintaining constant architectural parameters, we identify key determinants of immunorecognition enabling the rational design of NANPs with tunable immune activation profiles
Martin Panigaj, Hannah S. Newton, Jian Wang, Laxmi Pandey, Yelixza I. Avilla, Phong Nguyen, Morgan Chandler, Justin Halman, Yasmine Radwan, Stephanie Smith, Elijah Edmondson, Simone Difilippantonio, Chelsea Sanders, Bao Tran, Yongmei Zhao, Shaojun Xie, Edward Cedrone, Barry W. Neun, Meni Wanunu, Nikolay V. Dokholyan, Marina A. Dobrovolskaia, Kirill A. Afonin   +21 more
wiley   +1 more source

Sodium hydroxide pretreatment as an effective approach to reduce the dye/holes recombination reaction in P-Type DSCs [PDF]

, 2019
We report the synthesis of a novel squaraine dye (VG21-C12) and investigate its behavior as p-type sensitizer for p-type Dye-Sensitized Solar Cells.
Barbero, Nadia, Barolo, Claudia, BONOMO, MATTEO, DINI, DANILO, Giordano, Marco, NAPONIELLO, GAIA CLARA MERCEDES   +5 more
core   +2 more sources

MagPiezo: A Magnetogenetic Platform for Remote Activation of Endogenous Piezo1 Channels in Endothelial Cells

Advanced Functional Materials, EarlyView.
MagPiezo enables wireless activation of endogenous Piezo1 channels without genetic modification using 19 nm magnetic nanoparticles and low‐intensity magnetic fields. It generates torque forces at the piconewton scale to trigger mechanotransduction in endothelial cells, standing as a novel platform to interrogate and manipulate Piezo1 activity in vitro.
Susel Del Sol‐Fernández, Mariarosaria De Simone, Yilian Fernández‐Afonso, Daniel Garcia‐Gonzalez, Pablo Martínez‐Vicente, Thomas van Zanten, Raluca M. Fratila, Maria Moros   +7 more
wiley   +1 more source

Wash‐Free Multi‐Target Super‐Resolution Microscopy With Photocaged DNA Labels

Angewandte Chemie, EarlyView.
Photocaged DNA labels enable wash‐free multi‐target super‐resolution microscopy. A single type of DNA–fluorophore imager strand hybridizes to two orthogonal light‐responsive docking strands, whose hybridization state can be modulated with light from “ON” to “OFF” and vice versa.
Nina Kaltenschnee, Marina S. Dietz, Laurell F. Kessler, Yunqing Li, Janik Kaufmann, Alexander Heckel, Mike Heilemann   +6 more
wiley   +2 more sources

Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu, Zhenfeng Li, Yue Fei, Ali Mohammadi, Ge Li   +4 more
wiley   +1 more source