Results 71 to 80 of about 647,850 (296)

Overview of molecular signatures of senescence and associated resources: pros and cons

FEBS Open Bio, EarlyView.
Cells can enter a stress response state termed cellular senescence that is involved in various diseases and aging. Detecting these cells is challenging due to the lack of universal biomarkers. This review presents the current state of senescence identification, from biomarkers to molecular signatures, compares tools and approaches, and highlights ...
Orestis A. Ntintas, Sylvia Vagena, Pavlos Pantelis, Giorgos Theocharous, Russel Petty, Konstantinos Evangelou, Vassilis G. Gorgoulis   +6 more
wiley   +1 more source

High-accuracy discrete positioning device [PDF]

, 1994
An article (30) is controllably and precisely positioned at one of three discrete locations defined by a linkage. The positioning apparatus includes two independently driven cranks (34, 42), with a link (50) pivotably connected between the two cranks (34,
Brooks, John J.
core   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

Increasing of Tractor Hitch Positioning Accuracy

Механика машин, механизмов и материалов, 2015
The solving of problems of tractor agricultural equipment positioning accuracy were described by system with relay control. The created algorithm had reduced the error with the used feedback signal according to the action directions.
Evgeny Ya. Strok , Alexey G. Snetkov , Tatsiana L. Aleksandrova , Sergey V. Savchuk   +3 more
doaj  

Affection analysis of geometric layout on position and attitude detection accuracy of roadheader

Gong-kuang zidonghua, 2017
In order to realize unmanned and high accurate detection of position and attitude of boom-type roadheader on fully mechanized excavation face, a position and attitude detection system of roadheader based on ultra wide band ranging technology was proposed,
FU Shichen, LI Yiming, CHENG Long, ZONG Kai, ZHANG Minjun, TAO Yunfei, WU Miao   +6 more
doaj   +1 more source

Rapid screening of staphylokinase protein variants using an unpurified cell‐free expression system

FEBS Open Bio, EarlyView.
An unpurified cell‐free protein synthesis (CFPS) platform enables rapid functional screening of staphylokinase variants. Direct plasminogen‐activation assays performed in microplate format provide real‐time activity readouts, allowing rapid identification and ranking of variants with improved or reduced fibrinolytic activity without protein ...
Maria Tomková, Veronika Hovanová, Jiri Damborsky, Erik Sedlák   +3 more
wiley   +1 more source

Research on GNSS/IMU/Visual Fusion Positioning Based on Adaptive Filtering

Applied Sciences
The accuracy of satellite positioning results depends on the number of available satellites in the sky. In complex environments such as urban canyons, the effectiveness of satellite positioning is often compromised. To enhance the positioning accuracy of
Ao Liu, Hang Guo, Min Yu, Jian Xiong, Huiyang Liu, Pengfei Xie   +5 more
doaj   +1 more source

Global positioning accuracy improves

Eos, Transactions American Geophysical Union, 1994
Racal Positioning Systems Ltd. is now incorporating Ashtech's newest and most accurate Global Positioning System (GPS) receivers in its DeltaFix short‐range (SR) differential GPS systems.The differential system offers users precise positioning—at ranges depending on local radio propagation conditions—up to 60 km from a shore‐based reference station ...
openaire   +1 more source

The skills required for transition to university and study in biological sciences: A student perspective

FEBS Open Bio, EarlyView.
Bioscience students were asked for their opinions on the value and teaching of skills. 204 responded that teamwork, time management and study skills are necessary to reach University, that scientific writing, research, laboratory and presentation skills are taught effectively during their studies, while other skills are gained inherently through study ...
Janella Borrell, Susan Crennell
wiley   +1 more source

Identifying gene expression signatures for risk stratification of postoperative adjuvant chemotherapy in colorectal cancer

FEBS Open Bio, EarlyView.
A novel signature integrating genome‐wide analysis with clinical factors predicts recurrence in stage II colorectal cancer and enables a new risk stratification to guide postoperative adjuvant chemotherapy. Clinical risk stratification for postoperative recurrence in patients with pathological stage II (pStage II) colorectal cancer (CRC) is essential ...
Mayuko Otomo, Keisuke Okuno, Shuichi Watanabe, Sakiko Oba, Hiroyasu Kagawa, Masanori Tokunaga, Daisuke Ban, Yusuke Kinugasa   +7 more
wiley   +1 more source