نتایج جستجو برای: sustainable 431 and unsustainable 267

تعداد نتایج: 16850958  

2006
G. A. Kohring

Wonderland, a compact, integrated economic, demographic and environmental model is investigated using methods developed for studying critical phenomena. Simulation results show the parameter space separates into two phases, one of which contains the property of long term, sustainable development. By employing information contain in the phase diagram, an optimal strategy involving pollution taxe...

2017
Liette Vasseur Darwin Horning Mary Thornbush Emmanuelle Cohen-Shacham Angela Andrade Ed Barrow Steve R Edwards Piet Wit Mike Jones

Sustainable development aims at addressing economic, social, and environmental concerns, but the current lack of responsive environmental governance hinders progress. Short-term economic development has led to limited actions, unsustainable resource management, and degraded ecosystems. The UN Sustainable Development Goals (SDGs) may continue to fall short of achieving significant progress witho...

2000
A. Tolentino

In the world today, sustainable development has become a major concern at both national and international levels. There is broad realization that the wasteful, inequitable development patterns of the past, which have led to developments that are economically, socially and ecologically unsustainable, cannot continue. The debate today is no longer about choosing between economic and social develo...

2007
Nicholas A. Ashford

Scholars and professionals committed to fostering sustainable development have urged a reexamination of the curriculum and the restructuring of research in engineering-focused institutions of higher learning. The focus is on engineering, more than on the natural and physical sciences or on social science, because the activities that drive the industrial state – the activities that implement sci...

2012
Petra Wächter Michael Ornetzeder Harald Rohracher

The transition to a sustainable energy system faces more challenges than a simple replacement of fossil energy sources by renewable ones. Since current structures do not favor sustainable energy generation and use, it is indispensable to change the existing infrastructure. A fundamental change of the energy system also requires re-organizing spatial structures and their respective institutions ...

2009
Clinton L. Beckford

Grown in Jamaica since the days of slavery, food yams are major staples in local diets and a significant non-traditional export crop. The cultivation system used today is the same as 300 years ago, with alleged unsustainable practices. A new cultivation system called minisett was introduced in 1985 but the adoption rate twenty four years later is extremely low. This paper analyzes the prospects...

2012
Syed M. Mehmud

This paper proposes an entrepreneurial solution to address the continued, unsustainable increases in health care costs that threaten to deny access to health care for millions of Americans. Entrepreneurs will develop systems providing clear financial motivation for consumers to make decisions that minimize health care spending and maximize positive health outcomes. In so doing, health care prov...

2010
Tien-Dung Le Elena Shulman

In a large federation of learning object repositories, learning object locations or learning object URLs in metadata can become out of date when learning objects are moved or deleted. Regular checking of learning object URLs is essential. However, fully checking across a large federation imposes an unsustainable burden on time and resources while negatively impacting networks and repositories. ...

Journal: :Veterinary parasitology 2012
N D Sargison

Various interacting factors have been identified to explain why health plans for nematode parasite control, based on conventional epidemiological knowledge and involving pharmaceutical treatments of their sheep hosts have become unsustainable. Of these, the emergence of anthelmintic resistance has had a major impact on the economics of sheep farming, necessitating fundamental managemental chang...

Journal: :The Journal of biological chemistry 2004
Cheom-Gil Cheong Dennis W Wolan Samantha E Greasley Patricia A Horton G Peter Beardsley Ian A Wilson

Aminoimidazole-4-carboxamide ribonucleotide (AICAR) transformylase/IMP cyclohydrolase (ATIC) is a bifunctional enzyme with folate-dependent AICAR transformylase and IMP cyclohydrolase activities that catalyzes the last two steps of purine biosynthesis. The AICAR transformylase inhibitors BW1540 and BW2315 are sulfamido-bridged 5,8-dideazafolate analogs with remarkably potent K(i) values of 8 an...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید