Results 41 to 50 of about 968,000 (359)

Precise Orbit Determination of GPS Satellites for Real Time Applications [PDF]

Journal of Astronomy and Space Sciences, 2001
The accuracy of GPS applications is heavily dependent on the satellite ephemeris and earth orientation parameter. Specially applications like as the real time monitoring of troposphere and ionosphere require real time or predicted ephemeris and earth ...
Hyung-Chul Lim, Pli-Ho Park, Jong-Uk Park, Jung-Ho Cho, Yong-Won Ahn   +4 more
doaj  

Perceived Concerns and Psychological Distress of Healthcare Workers Facing Three Early Stages of COVID-19 Pandemic

Frontiers in Psychology, 2022
BackgroundThis study analyzed the difference in psychological distress of the healthcare workers in three different periods of the coronavirus disease 2019 (COVID-19) pandemic in Argentina.
María Cristina Richaud, María Cristina Richaud, María Cristina Richaud, María Cristina Richaud, Leandro Eidman, Leandro Eidman, Jael Vargas Rubilar, Jael Vargas Rubilar, Jael Vargas Rubilar, Viviana Lemos, Viviana Lemos, Viviana Lemos, Belén Mesurado, Belén Mesurado, Belén Mesurado, María Carolina Klos, María Carolina Klos, María Carolina Klos, Marisa Rodriguez de Behrends, Marisa Rodriguez de Behrends, Rubén N. Muzio, Rubén N. Muzio, Rubén N. Muzio   +22 more
doaj   +1 more source

Optimal Formation Trajectory-Planning Using Parameter Optimization Technique [PDF]

Journal of Astronomy and Space Sciences, 2004
Some methods have been presented to get optimal formation trajectories in the step of configuration or reconfiguration, which subject to constraints of collision avoidance and final configuration.
Hyung-Chul Lim, Hyo-Choong Bang, Kwan-Dong Park, Woo-Kyoung Lee   +3 more
doaj   +1 more source

Biotic and Abiotic Stress Management in Grapevine: Recent Advances and Major Breakthroughs

Agronomy, 2023
Grapevine (Vitis vinifera L [...]
Rita B. Santos, Andreia Figueiredo
doaj   +1 more source

What do general practitioners know about ADHD? Attitudes and knowledge among first-contact gatekeepers: systematic narrative review [PDF]

, 2016
Background: Attention Deficit Hyperactivity Disorder (ADHD) is a common childhood disorder with international prevalence estimates of 5 % in childhood, yet significant evidence exists that far fewer children receive ADHD services. In many countries, ADHD
A Ghanizadeh, A Heikkinen, A Rafalovitch, AK Mueller, AL Olson, AR Miller, Blanaid Gavin, C Ball, C Dowrick, C Sikorski, D Healy, D Moher, EF Gallo, F McNicholas, FC Verhulst, Fiona McNicholas, G Polanczyk, G Polanczyk, G Salmon, H Klasen, H Klasen, I Singh, I Singh, I Singh, J Moncrieff, K Sayal, K Sayal, K Sayal, K Sayal, K Sayal, K Shaw, KA Shaw, L Steele, Lucia Prihodova, M Fazel, M Janssen, M Moldavsky, M Seixas, M Zwaanswijk, M Zwaanswijk, M Zwaanswijk, M Zwaanswijk, Mimi Tatlow-Golden, MM Hofmarcher, N Salt, N Wright, OJ Storebø, PJ Hoekstra, R Thomas, R Thomas, S Hinshaw, S Kildea, S Tremmery, SP Cuffe, T Dennis, T Kennedy, VA Ward, VI Agyapong, Walter Cullen   +58 more
core   +1 more source

Twin neural network regression

Applied AI Letters, Volume 3, Issue 4, December 2022., 2022
We propose to reformulate a regression problem into predicting differences between target values. This allows for leveraging consistency conditions which can be used as uncertainty estimates and enable the production of an ensemble of predictions while training only a single neural network.
Sebastian Johann Wetzel, Kevin Ryczko, Roger Gordon Melko, Isaac Tamblyn   +3 more
wiley   +1 more source

Reflexiones sobre los problemas de la innovación tecnológica en Colombia. Estudio desde el campo de la telemática

Revista Ibero-Americana de Estudos em Educação, 2015
En la sociedad colombiana domina una tendencia a la transferencia de tecnología que se contrapone a la innovación y desarrollo tecnológico endógeno en el campo de telemática.
José Daniel Cabrera Cruz, César D. Guerrero, Diana Teresa Parra Sánchez   +2 more
doaj   +3 more sources

Metodología para la implementación de un sistema de reconocimiento de objetos mediante técnicas de visión artificial aplicado a manipuladores robóticos

Iteckne, 2009
En el presente artículo, se realiza una breve descripción de una metodología implementada para el funcionamiento de de un sistema de visión artificial para la identificación de objetos, basado en criterios como la forma, el color y el tamaño.
Sergio Andrés zabala Vargas, Jhonny Marvin Maldonado, Gianni Yasser Rivera   +2 more
doaj   +1 more source

Tracking Control Design Using Sliding Mode Techniques for Satellite Formation Flying [PDF]

Journal of Astronomy and Space Sciences, 2003
Satellite formation flying is currently an active area of research in the aerospace engineering. So it has been researched by various authors. In this study, a tracking controller using sliding mode techniques was designed to control a satellite for the ...
Hyung-Chu Lim, Hyo-Choong Bang, Kwan-Dong Park, Pil-Ho Park   +3 more
doaj   +1 more source

Survey of general practitioners' knowledge about Helicobacter pylori infection [PDF]

, 2005
BACKGROUND: Helicobacter pylori, occurring throughout the world and causing gastroduodenal diseases, is one of the most common chronic bacterial agents in humans.
Canbaz, Sevgi, Leblebicioglu, Hakan, Peksen, Yildiz, Sunter, Ahmet Tevfik   +3 more
core   +3 more sources