Results 71 to 80 of about 2,462,449 (251)

Reinforcement Learning With a Low‐Cost Parallel Linkage Gripper for Static and Dynamic Planar In‐Hand Manipulation

open access: yesAdvanced Intelligent Systems, EarlyView.
Hardware‐learning co‐design combines volar‐plate‐inspired passive‐joint constraints with mechanism‐aware reinforcement learning for a low‐cost parallel‐linkage gripper. The resulting system performs quasi‐static object adjustment and dynamic pinch grasping, demonstrating reliable planar in‐hand manipulation and successful sim‐to‐real transfer. Parallel
Yanzhou Jin   +4 more
wiley   +1 more source

Lost in aggregation? On the importance of local food price data for food poverty estimates

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract This paper explores within‐country variations in food price dynamics and food poverty estimates by employing local market price data and national consumer price index (CPI) data. Our results show that national CPI data may be useful for approximating national trends but they fail to detect and identify spatial variations in local trends, which
Stephan Dietrich   +4 more
wiley   +1 more source

Preferences and perceptions of the recreational spearfishery of the Great Barrier Reef.

open access: yesPLoS ONE, 2019
Recreational fishing practices can have significant impacts on marine ecosystems but their catch dynamics are often difficult to quantify, particularly for spearfishing.
Thea Bradford   +2 more
doaj   +1 more source

Species composition and by-catch discards from a two-level bottom trawl net in the East China Sea [PDF]

open access: yes, 2006
The bottom trawl fishery in the East China Sea has been one of the main fisheries of Japan. The fisheries resources are, however, decreasing and an effective resource management strategy is required.
Fukami, Kiyohiko   +34 more
core  

Growth performance and carcass composition in beef heifers undergoing catch-up (compensatory) growth

open access: yes, 1991
Fifty-three Hereford crossbred heifers (211 ± 28 (mean ± SD) kg; 197 ± 13 d of age at day 1) were used to study catch-up growth and its effects on carcass composition.
Yambayamba, E., Price, M. A.
core   +1 more source

Improving access to new technologies: An experiment with Kenyan input sellers

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Agrodealers play a critical role in rural economies, selling essential inputs for agricultural production, stocking new products, and providing farmers with technical advice. However, uncertainty can discourage them from stocking newer, less familiar products, limiting the availability of innovative technologies and leading to market failures ...
Sarah W. Kariuki   +6 more
wiley   +1 more source

Environmental Friendly Analysis on Fishing Gear of Trammel Net in Cilacap, Central Java

open access: yesJurnal Pembangunan dan Alam Lestari, 2017
The purpose of this study was to analysis about the composition of the catch, the selectivity of fishing gear and fishing gear level of friendliness to the environment.
Sutriyono Sutriyono   +2 more
doaj  

Transitioning to nonpunitive school policies for addressing student substance use: Qualitative interviews with key school administrators

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract Recent policy change in Massachusetts encourages schools to limit their use of exclusionary discipline to “extraordinary circumstances,” but little work has explored the opportunities and challenges of transitioning to nonpunitive practices after student substance use infractions in schools.
Kristina Conroy   +6 more
wiley   +1 more source

By-catch of sturgeon juveniles in beach seine fishing method in Mazandaran Province, northeast Iran

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2005
In an attempt to recognize the harmful fishing times and locations for sturgeons, we used catch statistic to evaluate by-catch of sturgeon juveniles during beach seine fishing over the years 2001-2002 in Mazandaran Province.
M. Moghim; H. Fazli; H. Khoshbabar rostmi
doaj  

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