Results 61 to 70 of about 615,181 (292)

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Earth-Point Stabilization Performance Using Asynchronous Star Tracker and Angular Velocity Sensor Measurements

Aerospace
The paper proposes two attitude motion determination algorithms based on an extended Kalman filter dealing with asynchronous measurements of the star tracker and angular velocity sensor.
Danil Ivanov, Uliana Monakhova, Yaroslav Mashtakov, Sergey Shestakov   +3 more
doaj   +1 more source

The STAR Heavy Flavor Tracker (HFT).

, 2014
Contribution to ...
Schambach, Joachim, Anderssen, Eric, Wieman, Howard, Woodmansee, Sam, Contin, Giacomo, Greiner, Leo, Silber, Joe, Stezelberger, Thorsten, Sun, Xiangming, Szelezniak, Michal, Videbæk, Flemming, Vu, Chinh   +11 more
openaire   +3 more sources

Decoding the dynamic extracellular matrix in cancer—3D models and bioscaffolds rewire the rules of tumor progression

FEBS Letters, EarlyView.
Cancer progression is regulated by the dynamic matrix code of the tumor microenvironment, which influences cellular behavior and disease development. Importantly, matrix remodeling in three‐dimensional cancer models more accurately reflects in vivo conditions compared to conventional two‐dimensional systems.
Sylvia Mangani, Konstantinos Spanopoulos, Zoi Piperigkou, Nikos K. Karamanos   +3 more
wiley   +1 more source

Compact Monolithic Star Tracker System

Optics
A compact, low-cost star tracker system tailored for small satellite applications was designed and prototyped. The system was designed with a fast f/1.2 aperture, a 20 × 13° field of view, and a theoretical angular resolution of 10 arcs—sufficient for ...
Kamil Zuber, Duncan Wright, Jebum Choi, Joni Sytsma, Colin Hall   +4 more
doaj   +1 more source

Efficient Star Identification Using a Neural Network

Sensors, 2020
The required precision for attitude determination in spacecraft is increasing, providing a need for more accurate attitude determination sensors.
David Rijlaarsdam, Hamza Yous, Jonathan Byrne, Davide Oddenino, Gianluca Furano, David Moloney   +5 more
doaj   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

FEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj, Carolina Vazquez Garzon, Jose Joaquin Velasco, Janine N. Post   +3 more
wiley   +1 more source

Discerning protein pools by selective staining with self‐labeling tags

FEBS Letters, EarlyView.
Cell surface proteins have an intra‐ and extracellular pool. Combining genetic fusion to self‐labeling tags that can be addressed with small molecule fluorophores allows separating these pools. We highlight recent developments and techniques for state‐of‐the‐art interrogation of cell surface proteins in the complex tissue setting.
Kati Fischermanns, Johannes Broichhagen
wiley   +1 more source

Towards Star Tracker Only Attitude Estimation [PDF]

, 2010
Star trackers can provide full information about satellite attitude information from a single sensor. In this paper, we examine the feasibility of designing attitude determination systems using only star trackers.
McVittie, Geoff, Grant, Cordell, Sinclair, Doug, Enright, John, Dzamba, Tom   +4 more
core   +1 more source

A Heavy Flavor Tracker for STAR [PDF]

, 2008
The STAR Collaboration proposes to construct a state-of-the-art microvertex detector,the Heavy Flavor Tracker (HFT), utilizing active pixel sensors and silicon strip technology. The HFT will significantly extend the physics reach of the STAR experiment for precision measurement of the yields and spectra of particles containing heavy quarks.
Chasman, C., Beavis, D., Debbe, R., Lee, J. H., Levine, M. J., Videbaek, F., Xu, Z., Kleinfelder, S., Li, S., Cendejas, R., Huang, H., Sakai, S., Whitten, C., Joseph, J., Keane, D., Margetis, S., Rykov, V., Zhang, W. M., Bystersky, M., Kapitan, J., Kushpil, V., Sumbera, M., Baudot, J., Hu-Guo, C., Shabetai, A., Szelezniak, M., Winter, M., Kelsey, J., Milner, R., Plesko, M., Redwine, R., Simon, F., Surrow, B., Van Nieuwenhuizen, G., Anderssen, E., Dong, X., Greiner, L., Matis, H. S., Morgan, S., Ritter, H. G., Rose, A., Sichtermann, E., Singh, R. P., Stezelberger, T., Sun, X., Thomas, J. H., Tram, V., Vu, C., Wieman, H. H., Xu, N., Hirsch, A., Srivastava, B., Wang, F., Xie, W., Bichsel, H.   +54 more
openaire   +4 more sources