Results 121 to 130 of about 2,019,394 (320)

Possible role of microtubules in vesicular transport of matrix protein during sea urchin larval biomineralization

Developmental Dynamics, EarlyView.
Abstract Background Biomineralization is a vital biological process through which organisms produce mineralized structures such as shells, skeletons, and teeth. Microtubules are essential for biomineralization in various eukaryotic species; however, their specific roles in this process remain unclear.
Areen Qassem, Tsvia Gildor, Smadar Ben‐Tabou de‐Leon   +2 more
wiley   +1 more source

POSITIONAL PERFORMANCE DIFFERENCES IN U14 ELITE LEAGUE FOOTBALL PLAYERS

Sport şi Societate
monitoring systems such as Catapult and Polar providing coaching staff with objective data on player performance. These tools enhance both training effectiveness and match analysis. This study aims to analyze the performance metrics recorded by the U14
Vicol Sebastian-Iulian, Teodorescu Silvia   +1 more
doaj   +1 more source

Continuities in Policies and Turnover Among Actors: Instrument Constituencies in French Primary Care Reforms

European Policy Analysis, EarlyView.
ABSTRACT Over the past decade, the concept of “instrument constituency” has been proposed as a way in which to bridge studies on policy networks and policy instruments. This concept focuses on policy networks composed of diverse actors who are brought together by the shared goal of promoting a specific instrument.
Noémie Morize
wiley   +1 more source

Mapping place names for small-scale fisheries evaluation

Aquatic Living Resources
Fishers’ spatial knowledge encompasses a diverse array of social, ecological, technical, experiential, and learning knowledge derived from local environmental and sociocultural contexts.
Randriatsara Roddy M., Behivoke Faustinato, Ramahatratra Frédéric, Mahafina Jamal, Lamy Thomas, Léopold Marc   +5 more
doaj   +1 more source

Robust GPS Carrier Tracking Model Using Unscented Kalman Filter for a Dynamic Vehicular Communication Channel

IEEE Access, 2018
The carrier tracking loop in a GPS receiver is considered to be an important process but also a weak link since the loss of signal lock can occur in a variety of situations. Low carrier-to-noise ratios and highly dynamic environments are common scenarios
Jiachen Yin, Rajesh Tiwari, Martin Johnston   +2 more
doaj   +1 more source

GPS signal acquisition and tracking using software GPS receiver

Proceedings of the Eighth International Symposium on Signal Processing and Its Applications, 2005., 2006
In this paper we investigate GPS signal acquisition and tracking using software GPS receiver. The software GPS receiver consists of a RF front-end, an ADC, and a software GPS program that runs on PC. The RF front-end down-converts the signal from RF to IF, and the ADC samples the IF signal.
null Falin Wu, null Kefei Zhang, A. Yasuda   +2 more
openaire   +2 more sources

Movement decisions reflect compromised statewide connectivity for mountain lions in California

Frontiers in Ecology and the Environment, EarlyView.
Human‐induced habitat fragmentation threatens connectivity for populations of wide‐ranging species by compromising long‐distance dispersal. We evaluated movement‐based resource selection of dispersing mountain lions (Puma concolor) to identify specific landscape conditions influencing movement decisions and connectivity between populations across the ...
Kyle D Dougherty, Justin A Dellinger, Bogdan Cristescu, Daniel J Gammons, David K Garcelon, J Mark Higley, Phillip Johnston, Quinton E Martins, John F Randolph, Seth PD Riley, Jeff A Sikich, Trish Smith, Thomas R Stephenson, T Winston Vickers, Greta M Wengert, Christopher C Wilmers, Heiko U Wittmer, John F Benson   +17 more
wiley   +1 more source

The effect of clock, media, and station location errors on Doppler measurement accuracy [PDF]

Doppler tracking by the Deep Space Network (DSN) is the primary radio metric data type used by navigation to determine the orbit of a spacecraft.
Miller, J. K.
core   +1 more source

Mesozoic–Cenozoic Thermochronology of the Tarim–Southern Tianshan System, NW China

Geological Journal, EarlyView.
Tectonothermal history of the Tarim–Southern Tianshan system compared with the major tectonic events at far‐field plate margins. ABSTRACT The Tarim Basin, an oil‐bearing basin in northwest China, is tectonically and sedimentologically linked to the Southern Tianshan Orogenic Belt.
Shuangfeng Zhao, Wen Chen, Jingbo Sun, Ze Shen, Jie Zhang   +4 more
wiley   +1 more source

Laser-Based Pedestrian Tracking in Outdoor Environments by Multiple Mobile Robots

Sensors, 2012
This paper presents an outdoors laser-based pedestrian tracking system using a group of mobile robots located near each other. Each robot detects pedestrians from its own laser scan image using an occupancy-grid-based method, and the robot tracks the ...
Masafumi Hashimoto, Kazuhiko Takahashi, Kei Kakimuma, Masataka Ozaki   +3 more
doaj   +1 more source