Results 71 to 80 of about 529,773 (286)

Unbounded convex sets for non-convex mixed-integer quadratic programming [PDF]

open access: yes, 2014
This paper introduces a fundamental family of unbounded convex sets that arises in the context of non-convex mixed-integer quadratic programming.
Burer, Samuel, Letchford, Adam
core  

Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková   +4 more
wiley   +1 more source

Advocating for agricultural education: A mixed methods examination on the role of opinion leadership on teachers’ advocacy intentions

open access: yesAdvancements in Agricultural Development
The purpose of this mixed methods study was to describe the role of opinion leadership on Louisiana teachers’ intentions to advocate for agricultural education.
Benita Komunjeru   +3 more
doaj   +1 more source

36-year trends in educational inequalities in self-rated health among Finnish adults

open access: yesSSM: Population Health, 2019
Health inequalities exist across countries and populations, but little is known about their long-term trends and even less about factors shaping the trends.
Eero Lahelma   +4 more
doaj   +1 more source

Some Results on incidence coloring, star arboricity and domination number [PDF]

open access: yes, 2012
Two inequalities bridging the three isolated graph invariants, incidence chromatic number, star arboricity and domination number, were established. Consequently, we deduced an upper bound and a lower bound of the incidence chromatic number for all graphs.
Shiu, Wai Chee, Sun, Pak Kiu
core  

Optimal measurements for nonlocal correlations

open access: yes, 2016
A problem in quantum information theory is to find the experimental setup that maximizes the nonlocality of correlations with respect to some suitable measure such as the violation of Bell inequalities. The latter has however some drawbacks.
Montina, Alberto   +3 more
core   +1 more source

The Role of Social Food Infrastructure in Addressing SNAP Participation Gaps: Evidence From Linked Administrative and Ground‐Sourced Data

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT We link American Community Survey and SNAP records for 185,000 units with ground‐sourced social food infrastructure data from FindFoodIL (Illinois Extension SNAP‐Ed) to examine SNAP participation determinants among eligible units. Bivariate probit models reveal, beyond SNAP offices, quantity of social infrastructure is associated with ...
Michael Lotspeich‐Yadao   +3 more
wiley   +1 more source

The Political Economy of Aid Flows to North Africa [PDF]

open access: yes, 2011
This paper provides an historical overview of aid flows to North Africa. It assesses the aid allocation process and argues that past aid flows to the region have been heavily influenced by donor political interests.
Harrigan, Jane
core  

Do Tax Incentives for Farmland Leases Increase Farm Supply? Evidence From Iowa's Beginning Farmer Tax Credit

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT In recent decades, agriculture has become increasingly concentrated through horizontal mergers and acquisitions via corporate entities, and policy makers are concerned this will be exacerbated by the aging population of farm operators. To reduce market concentration in agriculture, many states have enacted policies to entice new prospective ...
Justin M. Ross   +2 more
wiley   +1 more source

Why Didn't I Get a Payout? Understanding Farmer Choices, Index Insurance, and Basis Risk

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Index insurance, while heralded as a potential solution to alleviate poverty and food insecurity among agricultural households, has its own set of challenges, notably basis risk. Basis risk is the discrepancy between the insurance payout and losses incurred, posing a significant deterrent to the adoption of index insurance.
S. Lucille Blakeley   +4 more
wiley   +1 more source

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