Results 31 to 40 of about 30,662 (254)

Assessing the viability of genebanked seeds from rare, wild plants native to the United States using the D.E.A.D. paradigm

Applications in Plant Sciences, EarlyView.
Abstract Premise Genebanks must maintain viable seeds for decades. Seeds that germinate are clearly alive, but some seeds, often from wild populations, do not germinate because they are dormant, empty, aged, or damaged (D.E.A.D.). This work evaluates the effects of D.E.A.D.
Christina Walters, Lisa M. Hill, Katherine D. Heineman, Hannah M. Tetreault, Shaimaa Ibrahim, Katherine Markstein, Cheryl Birker, Kris Freitag, Dustin Wolkis, Michael Kunz, Sheila Murray, Nathaniel Kingsley, Alexandra Seglias, Nicholas Matsumoto, Thomas N. Kaye, Cheryl Peterson, Matthew A. Albrecht, Noah Dell, Stacy Anderson, Steve Blackwell, David Remucal, Wendy Gibble, Anita Tiller, Emily Coffey, Jason Ligon, Laurie Blackmore, Carrie Radcliffe, Heather E. Schneider, Kristen Nelson, David Sollenberger, Jessamine Finch, Kate Wellspring, Robert Jetton, Joyce Maschinski   +33 more
wiley   +1 more source

Research on High-Precision Control of Hydraulic Excavator Based on Optimal Trajectory Planning

IEEE Access
In this article, the trajectory planning and high-precision motion control of an excavator based on the independent hydraulic system of the load port are studied.
Junxiang Chen, Kelong Xu, Xiangdong Kong, Yujie Guo, Chao Ai   +4 more
doaj   +1 more source

Osteological correlates of the respiratory and vascular systems in the neural canals of Mesozoic ornithurines Ichthyornis and Janavis

The Anatomical Record, EarlyView.
Abstract In birds, the neural canal houses a variety of anatomical structures including the spinal cord, meninges, spinal vasculature, and respiratory diverticula. Among these, paramedullary diverticula and the extradural dorsal spinal vein may leave behind osteological correlates in the form of pneumatic foramina and fossae, and a bilobed geometry of ...
Jessie Atterholt, M. Grace Burton, Mathew J. Wedel, Juan Benito, Ellen Fricano, Daniel J. Field   +5 more
wiley   +1 more source

Sea urchin-inspired rigid-soft hybrid tactile sensor with wide linear range, fast response speed, and excellent robustness

npj Flexible Electronics
Wide linear range and fast response of tactile sensors are crucial for simplifying signal conversion and enhancing real-time perception. However, traditional tactile sensors struggle to control force-electric response and viscoelastic hysteresis ...
Weihua Gao, Jiantao Yao, Xiangyu Fei, Xianhe Yu, Chaoming Li, Congtian Gu, Guoliang Ma, Dakai Wang, Zhiwu Han, Luquan Ren   +9 more
doaj   +1 more source

Climate change and land management implications for a declining Neotropical migratory songbird breeding in the North American Great Plains

Avian Conservation and Ecology, 2020
Anthropogenic climate change and habitat loss pose major threats to grassland breeding birds, the most rapidly declining group of birds in continental North America.
Alex J. Glass, Andrew J. Caven, Daniel Kim, Madison O. Sutton, Nico Arcilla   +4 more
doaj  

Risk assessment and «Safety culture» lifting devices [PDF]

Научно-технический вестник Брянского государственного университета, 2019
Load gripping devices are used in any lifting operation and are used to attach the load to the construction machine, in most cases, to the crane hook.
Prusov A.Yu.
doaj   +1 more source

Dynamic Scheduling of Crane by Embedding Deep Reinforcement Learning into a Digital Twin Framework

Information, 2022
This study proposes a digital twin (DT) application framework that integrates deep reinforcement learning (DRL) algorithms for the dynamic scheduling of crane transportation in workshops.
Zhenyu Xu, Daofang Chang, Miaomiao Sun, Tian Luo   +3 more
doaj   +1 more source

Mindfulness and resilience: The experiences of global majority students in a mindfulness intervention Programme at a UK university

British Educational Research Journal, EarlyView.
Abstract Wellbeing in higher education (HE) in the United Kingdom has been increasingly prioritised for many institutions, with a growing demand for student support requests. There are various determinants in life that can influence mental health. As such, protected characteristics, including race, can indicate that students who are Black or Asian ...
Amy Bywater, Helen Keane
wiley   +1 more source

Parents’ Growth Mindsets and Home-Learning Activities: A Cross-Cultural Comparison of Danish and US Parents

Frontiers in Psychology, 2020
Mindset is a term commonly used to represent an individual’s beliefs about the role of ability and effort in learning. In this study, we assessed parental mindset—ability mindset and effort mindset—for 497 parents in two countries (United States and ...
Laura M. Justice, Kelly M. Purtell, Dorthe Bleses, Sugene Cho   +3 more
doaj   +1 more source

Early evolutionary history of the seed

Biological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman, Alan R. T. Spencer, Jason Hilton   +2 more
wiley   +1 more source