Results 91 to 100 of about 2,591,392 (328)

Morphological diversity of saber‐tooth upper canines and its functional implications

open access: yesThe Anatomical Record, EarlyView.
Abstract Elongated upper canine teeth, commonly known as saber‐teeth, have evolved three times within the sub‐order Feliformia. The species that wielded them flourished throughout the Cenozoic and have historically been separated into two morphological groups: the dirk‐tooths with longer, flatter canines, and the scimitar‐tooths with shorter, serrated ...
Caitlin D. Shelbourne   +1 more
wiley   +1 more source

Parents in the face of their children’s death education – attitudes and selected differentiating factors [PDF]

open access: yesStudia z Teorii Wychowania
Intruduction: Nowadays we are dealing with changes in cultural and social reception of death related to its taboo and trivialization. They generate discussion around the need to design and implement intentional activities known as death education.
Agnieszka Zamarian
doaj   +1 more source

How Have We Reacted To The COVID-19 Pandemic? Analyzing Changing Indian Emotions Through The Lens of Twitter [PDF]

open access: yesarXiv, 2020
Since its outbreak, the ongoing COVID-19 pandemic has caused unprecedented losses to human lives and economies around the world. As of 18th July 2020, the World Health Organization (WHO) has reported more than 13 million confirmed cases including close to 600,000 deaths across 216 countries and territories.
arxiv  

Mothers’ knowledge, attitude and practice towards the prevention and home-based management of diarrheal disease among under-five children in Diredawa, Eastern Ethiopia, 2016: a cross-sectional study

open access: yesBMC Pediatrics, 2018
BackgroundDiarrhea remains the 2nd leading cause of death among children under 5 globally. It kills more young children than AIDS. It would have been prevented by simple home management using oral rehydration therapy.
H. Workie   +2 more
semanticscholar   +1 more source

Major Causes of Rabies Outbreak in Pastoral Areas of the Somali Region and Importance of the One Health Approach

open access: yesAnimal Research and One Health, EarlyView.
Rabies Transmission and Control in the Somali Region. Introduction: Rabies is a fatal zoonotic disease caused by the Lyssavirus, posing a significant threat to both wildlife and public health in the Somali Region of Ethiopia. Key Points: 1. Primary Hosts: Wild carnivores such as foxes, jackals, raccoons, skunks, bats, and honey badgers are the main ...
Hassan Abdi Hussein
wiley   +1 more source

Spacecraft Position and Attitude Formation Control using Line-of-Sight Observations [PDF]

open access: yesarXiv, 2014
This paper studies formation control of an arbitrary number of spacecraft based on a serial network structure. The leader controls its absolute position and absolute attitude with respect to an inertial frame, and the followers control its relative position and attitude with respect to another spacecraft assigned by the serial network.
arxiv  

Nonlinear Attitude Filter on SO(3): Fast Adaptation and Robustness [PDF]

open access: yesarXiv, 2020
Nonlinear attitude filters have been recognized to have simpler structure and better tracking performance when compared with Gaussian attitude filters and other methods of attitude determination. A key element of nonlinear attitude filter design is the selection of error criteria.
arxiv  

Medical students' initial experiences of the dissection room and interaction with body donors: A qualitative study of professional identity formation, educational benefits, and the experience of Pasifika students

open access: yesAnatomical Sciences Education, EarlyView.
Abstract The first experience of medical students in the dissecting room (DR) likely influences professional identity formation (PIF). Sparse data exist exploring how exposure to the DR and body donors without undertaking dissection influences PIF, or how culture may influence this experience.
Jacob Madgwick   +2 more
wiley   +1 more source

Robust Adaptive Geometric Tracking Controls on SO(3) with an Application to the Attitude Dynamics of a Quadrotor UAV [PDF]

open access: yesarXiv, 2011
This paper provides new results for a robust adaptive tracking control of the attitude dynamics of a rigid body. Both of the attitude dynamics and the proposed control system are globally expressed on the special orthogonal group, to avoid complexities and ambiguities associated with other attitude representations such as Euler angles or quaternions ...
arxiv  

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