Results 101 to 110 of about 2,492,535 (278)

Development of a Simulation System with Integrated In Situ Monitoring Capabilities for the Lubrication State of Rolling Elements in Space Control Moment Gyro Bearings

Lubricants
As a core actuator for attitude control in spacecraft, the lubrication state of the bearing rolling elements in the Control Moment Gyro (CMG) critically determines the operational lifetime and control accuracy of the overall assembly.
Zhaoliang Dou, Zhuangzhuang Du, Saihang Zhou, Gang Zhou, Shaohua Zhang, Lu Gao, Ye Yang, Fengbin Liu   +7 more
doaj   +1 more source

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Tumor‐stromal crosstalk and macrophage enrichment are associated with chemotherapy response in bladder cancer

FEBS Open Bio, EarlyView.
Chemoresistance in bladder cancer: Macrophage recruitment associated with CXCL1, CXCL5 and CXCL8 expression is characteristic of Gemcitabine/Cisplatin (Gem/Cis) Non‐Responder tumors (right side) while Responder tumors did not show substantial tumor‐stromal crosstalk (left side). All biological icons are attributed to Bioicons: carcinoma, cancerous‐cell‐
Sophie Leypold, Janik Riese, Lancelot Seillier, Mark Kühnel, Julia Pannhausen, Charlotte O. J. Fröhlich, Christian Martin, Peter Boor, Matthias Saar, Danny D. Jonigk, Nadine T. Gaisa, Michael Rose   +11 more
wiley   +1 more source

Acoustic rotation control [PDF]

, 1983
A system is described for acoustically controlled rotation of a levitated object, which avoids deformation of a levitated liquid object. Acoustic waves of the same wavelength are directed along perpendicular directions across the object, and with the ...
Croonquist, A. P., Elleman, D. D., Wang, T. G.   +2 more
core   +1 more source

Imaging with parallel ray-rotation sheets

, 2008
A ray-rotation sheet consists of miniaturized optical components that function - ray optically - as a homogeneous medium that rotates the local direction of transmitted light rays around the sheet normal by an arbitrary angle [A. C.
Courtial, Johannes, Hamilton, Alasdair C.   +1 more
core   +1 more source

Abordar la ciudad. Algunas estrategias transformadoras para el análisis urbano (entrevistas con Joan Mac Donald, Observatorio Metropolitano y Left Hand Rotation)

Encrucijadas: Revista Crítica de Ciencias Sociales, 2012
Joan Mac Donald es arquitecta especializada en políticas y programas de asentamientos humanos. Ha sido viceministra de Vivienda y urbanismo en Chile entre 1990 y 1994.
David Prieto, Joan Mac Donald, Left Hand Rotation, Obervatorio Metropolitano   +3 more
doaj  

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Supernovae from rotating stars

, 2017
The present paper discusses the main physical effects produced by stellar rotation on presupernovae, as well as observations which confirm these effects and their consequences for presupernova models.
A Gal-Yam, A Heger, A Heger, A Maeder, A Maeder, A Maeder, A Maeder, A Stacy, AFJ Moffat, AV Filippenko, C Chiappini, C Chiappini, C Georgy, C Martayan, F Martins, G Meynet, G Meynet, G Meynet, G Meynet, G Meynet, G Piotto, H Zeipel Von, I Mandel, J-P Zahn, JH Groh, JH Groh, JH Groh, JJ Eldridge, JS Vink, MC Bersten, MR Drout, N Przybilla, N Smith, N Yusof, O Krause, P Marchant, PA Crowther, R Hirschi, R Hirschi, R Hirschi, RM Humphreys, S Ekström, S Ekström, S-C Yoon, SE Woosley, SE Woosley, SE Woosley, SJ Smartt, SJ Smartt, T Karlsson, T Moriya, T Yoshida, Y Cao   +52 more
core   +1 more source

Analysis of the beneficial effects of prior soybean cultivation to the field on corn yield and soil nitrogen content

Frontiers in Plant Science
Corn-soybean rotation is a cropping pattern to optimize crop structure and improve resource use efficiency, and nitrogen (N) fertilizer application is an indispensable tool to increase corn yields.
Chao Yan, Yi Yang, Junming Song, Fuxin Shan, Xiaochen Lyu, Shuangshuang Yan, Chang Wang, Qiulai Song, Chunmei Ma   +8 more
doaj   +1 more source