Results 61 to 70 of about 438,725 (308)

Low-dose alum application trialled as a management tool for internal nutrient loads in Lake Okaro, New Zealand [PDF]

open access: yes, 2008
Aluminium sulfate (alum) was applied to Lake Okaro, a eutrophic New Zealand lake with recurrent cyanobacterial blooms, to evaluate its suitability for reducing trophic status and bloom frequency.
Gibbs, Max M.   +2 more
core   +2 more sources

Climate Change Agricultural Comparative Advantage and the US Trade Balance

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Current science indicates that warming and elevated atmospheric CO2 will have ambiguous results for crop productivity depending on crop type and geographic location, whereas increased heat stress makes livestock and human labor less productive.
Elizabeth A. Fraysse   +2 more
wiley   +1 more source

Land Use and the Agrarian Economy in the Roman Dutch River Area

open access: yesInternet Archaeology, 2009
This article aims to reconstruct agrarian land use for a rural community in the Roman frontier zone in the Netherlands. The Dutch River Area was characterised by a dynamic landscape. Rivers regularly flooded the surrounding low-lying land.
Maaike Groot, Laura I. Kooistra
doaj   +1 more source

Rural trajectories: Diversification and farm-community linkages in Whakatane District, 1999-2003 [PDF]

open access: yes, 2004
In New Zealand and elsewhere the interdependence of development in farming and the broader rural community can no longer be taken for granted. Five years ago we conducted a comparative analysis of the interrelated dynamics of change in agriculture and ...
Bedford, Richard   +2 more
core   +1 more source

The hydrodynamics of the southern basin of Tauranga Harbour [PDF]

open access: yes, 2013
The circulation of the southern basin of Tauranga Harbour was simulated using a 3-D hydrodynamic model ELCOM. A 9-day field campaign in 1999 provided data on current velocity, temperature and salinity profiles at three stations within the main basin. The
Bryan, Karin R.   +3 more
core   +2 more sources

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira   +4 more
wiley   +1 more source

Analysis of the Role and Status of Women in the Kermanshahan Tribe in the Qajar era, Relying on Historical Evidence [PDF]

open access: yesزن در فرهنگ و هنر, 2019
The aim of this study is to understand the status of Kurdish women in the Kermanshahan tribe community in the Qajar era and their impacts on social, economic, and political structures based on traveler's reports, documents and documented archaeological ...
Hasan Karimian   +2 more
doaj   +1 more source

Greenbelt myth is the driving force behind the housing crisis [PDF]

open access: yes, 2013
There is a housing crisis in England, writ large in London, and it is a crisis of supply. Paul Cheshire points out that, contrary to popular perception, there is plenty of space to build new houses, and argues that we need to reform the regulation that ...
Cheshire, Paul
core  

Do outgrower schemes enhance technology adoption and productivity? Evidence from maize farmers in Northern Ghana

open access: yesAgribusiness, EarlyView.
Abstract Nucleus outgrower schemes are contractual arrangements where well‐resourced large‐scale farmers (nucleus farmers) are empowered by development support agencies to take charge of smallholder farmers, by providing them with market access and the necessary training on agronomic practices and farm inputs for production.
Dominic Tasila Konja, Awudu Abdulai
wiley   +1 more source

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