Results 61 to 70 of about 8,568 (266)

Is There a Market for Organic Milk in Serbia? Insights From Integrated Choice and Latent Variable Model

Agribusiness, EarlyView.
ABSTRACT Past growth in the global organic market has been concentrated in high‐income countries, while in middle‐income countries such as Serbia the organic market remains nascent and characterized by a sparse assortment of organic products, high retail premia and limited evidence on consumer preferences and their drivers.
Milan Tatic, Sanja Dzever, Bojan Matkovski, Danilo Djokic   +3 more
wiley   +1 more source

Adaptive Strategies Adopted by Herders Against the Decollectivization of Rangeland in the Qinghai–Tibetan Plateau in China

Mountain Research and Development, 2019
The domestication of the yak on the Qinghai–Tibetan Plateau probably dates back to 7300 years ago, when the rangelands were also utilized for cultivation. Over time, a complete system of herding and rangeland management developed.
Yang Zhe, Jiu Cili, Ruth H. Mace, Du Juan, Bai Pengpeng, Du Guozhen   +5 more
doaj   +1 more source

Deforestation and Efficiency: Insights From Forest Transition in the Brazilian Cerrado

Agribusiness, EarlyView.
ABSTRACT This paper estimates technical efficiency (TE) and environmental efficiency (EE) of agricultural production at the municipal level of the Brazilian Cerrado in 2006 and 2017, and investigates their underlying mechanisms in relation to forest transition theory.
Ricardo Muniz Simões, Cassiano Bragagnolo, Humberto Francisco Silva Spolador   +2 more
wiley   +1 more source

Biologically inspired herding of animal groups by robots

Methods in Ecology and Evolution, 2023
A single sheepdog can bring together and manoeuvre hundreds of sheep from one location to another. Engineers and ecologists are fascinated by this sheepdog herding because of the potential it provides for ‘bio‐herding’: a biologically inspired herding of
Andrew J. King, Steven J. Portugal, Daniel Strömbom, Richard P. Mann, José A. Carrillo, Dante Kalise, Guido deCroon, Heather Barnett, Paul Scerri, Roderich Groß, David R. Chadwick, Marina Papadopoulou   +11 more
doaj   +1 more source

Programmable Flocks: Hierarchical Swarm Control via Dynamic Parameter Injection

Advanced Intelligent Systems, EarlyView.
We present a method for the control of robot swarms which allows the shaping and the translation of patterns of simple robots (“smart particles”), using two types of devices. These two types represent a hierarchy: a larger group of simple, oblivious robots (which we call the workers) that is governed by simple local attraction forces and a smaller ...
Vivek Shankar Varadharajan, Giovanni Beltrame   +1 more
wiley   +1 more source

Accounting for animal health in efficiency analysis: An application to Swedish dairy farms

American Journal of Agricultural Economics, EarlyView.
Abstract Poor animal health is a central concern in modern livestock production. Despite the necessity to incorporate animal health in efficiency analysis, the theoretical and empirical developments are limited on this subject. This article appropriately characterizes the axiomatic properties of animal health within a production framework.
Frederic Ang, Enoch Owusu‐Sekyere, Karin Alvåsen, Helena Hansson   +3 more
wiley   +1 more source

Herding Behavior among Institutional Investors in Tehran Stock Exchange [PDF]

فصلنامه پژوهش‌های اقتصادی ایران, 2011
this paper following Lakonishok (1992) and Sias (2004), we examine the presence of herding behavior among active institutional investors, test the presence of momentum strategy (as a determiner of herding behavior) and the correlation between herding ...
Gholamreza Keshavarz Haddad, Mohammad Rezaei   +1 more
doaj  

Genetic Diversity, Adaptation, Wild Introgression, and Coat Color Mutation of Golden Yak

Animal Research and One Health, EarlyView.
Genetic diversity, adaptation, wild introgression, and coat color mutation of golden yak from two populations on the Qinghai‐Xizang Plateau. ABSTRACT The golden yak lives on the Qinghai‐Xizang Plateau with a golden coat and adapts to high altitudes and strong ultraviolet environment. The golden coat is a prominent phenotype in many domesticated species,
Huixuan Yan, Jialei Chen, Chuzhao Lei, Fengwei Zhang, Shunzhong He, Weiru Song, Hongyan Ma, Shuling Li, Guomei Li, Laba Yongcuo, Jianlin Han, Johannes A. Lenstra, Qiang Zhang, Rende Song, Basang Wangdui, Ningbo Chen   +15 more
wiley   +1 more source

Decomposing the Household Herding Behavior in Stock Investment: The Case of China

Econometrics
Financial studies on the herding effect have been very popular for decades, as detecting herding behavior helps to explain price deviations and market inefficiencies.
Yung-Ching Tseng, I.-Fan Hsiao, Guo-Chen Wang   +2 more
doaj   +1 more source

Comparison of Bull-Dam Herds, Progeny Testing Herds, and Other Dairy Herd Improvement Herds

Journal of Dairy Science, 1991
Abstract Michigan and Northeast dairy herds that produced young bulls for AI sampling from 1974 to 1981 and 1978 to 1981, respectively, and those involved in progeny testing were compared with their contemporary DHI herds. The 1985 lactation records of Michigan herds and 1980 to 1987 data of Northeast herds were acquired from respective DHIA data ...
I.L. Mao, A.E. Wilhelm, M.C. Dong, C.E. Meadows   +3 more
openaire   +1 more source