Results 101 to 110 of about 642,165 (350)
Accessible ecophysiological tools for seabird conservation
Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 32, Issue 12, Page 1983-2002, December 2022., 2022 Abstract Seabirds are the most endangered avian taxa on Earth, with over a third of species globally threatened. To help slow their decline, conservation physiology seeks to determine how seabird responses to climatic and anthropogenic threats influence demographic processes, but it is not widely utilized in monitoring.
Edin A. Whitehead, Brendon J. Dunphy
wiley +1 more source
HALO: Hazard-Aware Landing Optimization for Autonomous Systems [PDF]
arXiv, 2023 With autonomous aerial vehicles enacting safety-critical missions, such as the Mars Science Laboratory Curiosity rover's landing on Mars, the tasks of automatically identifying and reasoning about potentially hazardous landing sites is paramount. This paper presents a coupled perception-planning solution which addresses the hazard detection, optimal ...
arxiv
Suitability of Natura 2000 sites for threatened freshwater species under projected climate change
Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 32, Issue 12, Page 1872-1887, December 2022., 2022 Abstract As part of the world's largest coordinated network of protected areas, Natura 2000, European Union member states designate special areas of conservation (SACs) to maintain or achieve favourable conservation status for imperilled aquatic species listed under Annex II of the Habitats Directive.
Timo Basen +4 more
wiley +1 more source
The Anatomical Record, EarlyView., 2022 Abstract A number of helochelydrid turtle shell remains were recovered over the course of the 19th century from mid‐Cretaceous sediments throughout Southern England, including the poorly figured and described types of Trachydermochelys phlyctaenus from the Cambridge Greensand of Cambridgeshire, Plastremys lata from the Upper Greensand of the Isle of ...
Walter G. Joyce
wiley +1 more source
Earth and Space ScienceChina's first Mars sampling return mission (Tianwen‐3) is designed to launch and retrieve samples around 2030. Three tentative landing areas (TLAs) (Amazonis, Chryse and Utopia Planitiae, i.e., TLA‐A, TLA‐C and TLA‐U) are selected based on elevation
Yuan Tian +4 more
doaj +1 more source
Conceptual Design of Mars Lander with Novel Impact Intriguing System [PDF]
arXiv, 2018 Landing robotic spacecrafts and humans on Mars has become one of the inevitable technological necessities for humans. Effectuating perfect Mars expedition requires landing of enormous cargoes, crewed modules, ascent vehicles, and scientific laboratories. Crash-landing destructs landing modules due to a lack of adequate impact absorbers.
arxiv
International Journal of Advanced Robotic Systems, 2018 As a class of autonomous deep-space exploration robots, Mars lander is simultaneously affected by wind disturbance and actuator fault, which hinders precise landing on Mars.
Jianwei Xu, Jianzhong Qiao, Lei Guo
doaj +1 more source
Identification of histological threshold concepts in health sciences curricula: Students' perception
Anatomical Sciences Education, Volume 16, Issue 1, Page 171-182, January/February 2023., 2023 Abstract Students' metacognitive skills and perceptions are considered important variables for high‐quality learning. In this study, students' perceptions were used to identify histological threshold concepts (integrative, irreversible, transformative, and troublesome) in three health sciences curricula.
Miguel A. Martin‐Piedra +9 more
wiley +1 more source
Review on Entry, Descent, Landing of Rovers on Mars
, 2018 Humans are trying to explore the solar system and the moon was the first. Since the recent decades the interest has shifted towards so called twin planet of Earth. Martian surface having similar features reminiscent both of impact craters of Moon and the various desert and polar ice caps of Earth.
Vineeth. K.V +3 more
openaire +4 more sources
Distinct response of near surface air temperature to clouds in North China
Atmospheric Science Letters, Volume 23, Issue 12, December 2022., 2022 Cloud weakens Tmax and increases Tmin, and thus decreases daily temperature range (DTR), which is mainly due to the blocking effects of clouds to downwelling solar radiation and trapping effects to upwelling longwave radiation. However, the relative impacts of clouds on Tmax and Tmin vary with locations, with relatively stronger impact on Tmin and DTR ...
Shuyi Jiang, Chuanfeng Zhao, Yan Xia
wiley +1 more source