نتایج جستجو برای: if productivity undergoes a divergence trend
تعداد نتایج: 13506507 فیلتر نتایج به سال:
this research was conducted in the west forest of guilan, northern iran. data from various harvesting methods for 20 years were collected. results showed that, productivity rate of round wood, pulp wood and fuel wood has had an upward trend, while rate of traditional products (lumber, sawn wood, charcoal, etc.) has had a downward trend. production cost has been investigated in this research. th...
Tourism and Hospitality Research in the Peripheries: Thematic Focus and a Research Agenda from Ghana
Increasing debates on decolonising tourism and hospitality knowledge production have emerged in the context of a largely Western-dominated canon research dissemination system. This paper contributes to these by highlighting centring Ghana. is accomplished reviewing synthesising 238 articles authored 520 authors over 31 years through content analysis. The sample shows trend toward increased use ...
abstract this paper attempts to re-investigate the catching-up (stochastic convergence) hypothesis among the selected 16 oecd countries applying the time series approach of convergence hypothesis with annual data over one century. to reach this aim, we propose a model which specifies a trend function, incorporating both types of structural breaks – that is, sharp breaks and smooth shifts using ...
This research was conducted in the west forest of Guilan, northern Iran. Data from various harvesting methods for 20 years were collected. Results showed that, productivity rate of round wood, pulp wood and fuel wood has had an upward trend, while rate of traditional products (lumber, sawn wood, charcoal, etc.) has had a downward trend. Production cost has been investigated in this research. Th...
in the first chapter we study the necessary background of structure of commutators of operators and show what the commutator of two operators on a separable hilbert space looks like. in the second chapter we study basic property of jb and jb-algebras, jc and jc-algebras. the purpose of this chapter is to describe derivations of reversible jc-algebras in term of derivations of b (h) which are we...
In the 1990s, conventional measures of productivity growth, or the growth in output per worker, have indicated a dramatic rise. If these measures are correct, the economic benefits are clear. In the short run, sustained, faster productivity growth would enable the economy to expand more rapidly without intensifying inflationary pressures. In the long run, sustained, faster productivity growth w...
Net primary productivity (NPP) and net ecosystem production (NEP) are often used interchangeably, as their difference, heterotrophic respiration (soil CO2 efflux, RSH = NPP−NEP), is assumed a near-fixed fraction of NPP. Here, we show, using range-wide replicated experimental study in loblolly pine (Pinus taeda) plantations that responds differently than NPP to fertilization drought treatments, ...
Total carbon stock in vegetation and soils was reduced 37% in south-central Senegal from 1900 to 2000. The decreasing trend will continue during the 21st century unless forest clearing is stopped, selective logging dramatically reduced, and climate change, if any, relatively small. Developing a sustainable fuelwood and charcoal production system could be the most feasible and significant carbon...
Aims: Diabetes mortality undergoes a growing trend worldwide that results in reducing life expectancy in society. Diabetes has been a significant health challenge in recent decades and imposed a lot of economic burden on the community. The present study aimed to evaluate the trend of diabetes mortality in Iran over five years. Methods & Materials: The mortality data published by the Ministry o...
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