نتایج جستجو برای: sustainability indices

تعداد نتایج: 145132  

Journal: :journal of agricultural science and technology 2012
a. asadi kh. kalantari sh. choobchian

agricultural sustainability refers to the ability of a farm to produce food indefinitely, without causing irreversible damage to ecosystem health. the main objective of this study was to formulate a structural model to analyze the effects of ecological, social, and economic factors on sustainable agricultural development in qazvin province of iran. to achieve this aim, a structural model with 4...

1999
John P. Reganold

This paper discusses the effect of commercial alternative and conventional farming systems on soil quality and farm profitability in several countries. Soil quality and farm profitability are two of several indices that measure agricultural sustainability. These studies indicated that the organic and biodynamic farming systems have soils of higher biological, physical, and in many cases chemica...

Journal: :Sustainability 2022

Considering the growing importance of sustainable investments worldwide, we explore volatility transmission effects between EURO STOXX Sustainability Index and stock market indexes its stocks. Using daily index return data, during 2000–2022, covering COVID-19 pandemic, Multivariate Generalized Auto-Regressive Conditional Heteroskedasticity (MGARCH) models are used to if indices felt pandemic im...

2013
Alan Tsang Kate Larson Rob McAlpine

Wildland fires (or wildfires) occur on all continents except for Antarctica. These fires threaten communities, change ecosystems, destroy vast quantities of natural resources and the cost estimates of the damage done annually is in the billions of dollars. Controlling wildland fires is resource-intensive and there are numerous examples where the resource demand has outstripped resource availabi...

Journal: :The Journal of trauma 2003
David G Jacobs Brian Ray Plaisier Philip S Barie Jeffrey S Hammond Michele R Holevar Karlene E Sinclair Thomas M Scalea Wendy Wahl

2014
Nurdan Yildirim

Heating, cooling and lighting appliances in buildings account for more than one third of the world’s primary energy demand. Therefore, main components of the building heating systems play an essential role in terms of energy consumption. In this context, efficient energy and exergy utilization in HVAC-R systems has been very essential, especially in developing energy policies towards increasing...

This paper is an endeavor to quantify the concept of sustainable transportation. The prevailing idea in the context of sustainable development (SD) emphasizes on the reduction of transportation demand in order to reduce the environmental and social consequences of it. Nevertheless, in the current paper using a measure for SD, and based on the conformity of the growths of all sectors with transp...

2007
Mark T. Brown Eliana Bardi Daniel E. Campbell Shu-Li Haung Enrique Ortega Torbjorn Rydberg David Tilley Sergio Ulgiati Raúl Siche

In this study, emergy evaluation was used to analyze the Peruvian ecological – economic system. The material and energy flows were evaluated in units of solar emergy. The performance of the Peruvian system was assessed through emergy-based indices. The main calculated indicators are the following: (a) Emergy/USD ratio = 1.01 E+13 sej/dollar; (b) Emergy Yield Ratio (EYR) = 9.69; and (c) Environm...

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