In some higher dimensional nonlinear field theories integrable subsectors with infinitely many conservation laws have been identified by imposing additional integrability conditions. Originally, the complex eikonal equation was chosen as integrability condition, but recently further generalizations have been proposed. Here we show how these new integrability conditions may be derived from the g...

Supersymmetric σ-models obtained by constraining linear supersymmetric field theories are ill defined. Well defined subsectors parametrising Kahler manifolds exist but are not believed to arise directly from constrained linear ones. A counterexample is offered using improved understanding of membranes in superstring theories leading to crucial central terms modifying the algebra of supercharge ...

This paper explores the impact of artificial intelligence on Vietnam’s economy when implemented in certain subsectors agriculture. The rice, cashew nut, and coffee subsector will be analysed to identify any problems that are already present, what effect those specific subsectors. Artificial can used rice farming help regulate salination levels, preventing crop failure. In nut subsector, grade n...

Abstract This paper examines the economic impact of climate induced disasters on Sri Lanka's agricultural, industrial and services sectors their subsectors. In doing so, it seeks to explain a central paradox – that there are winners losers in terms effect sectoral growth. poses problems for many developing countries which seeking aggressively raise growth targets. These targets typically do not...

Abstract In the developing world, services account for a rising share of domestic employment and international trade. Thus, it is important to know whether trade liberalization contributes labour productivity in services. We explore this question, examining 1990–2000 Brazilian liberalization. find that growth imports exports strengthened services, but contribution was smaller subsectors with mo...

The rebound effect refers to the phenomenon that individuals tend consume more energy in face of efficiency improvement, which reduces expected energy-saving effect. Previous empirical studies on regions and sectors do not provide microscopic evidence. To fill this gap, we use China’s firm-level data estimate manufacturing subsectors, providing a detailed picture across different 2001–2008. Res...

Abstract Economic performance is closely related with energy consumption, the major part of which still comes from non-renewable sources. While endeavoring to promote renewable energy, policy makers are interested in technological change that also increases efficiency. However, both growth models directed and microeconomic theories regarding innovation suggest not necessarily biased towards ene...

(S)-Emopamil is a novel calcium channel blocker of the phenylalkylamine class, with potent serotonin S2 antagonist activity. We investigated the effect of (S)-emopamil on the histopathologic consequences of global brain ischemia in anesthetized rats. Pretreated rats (n = 15) received 20 mg/kg i.p. (S)-emopamil 30 minutes before and 2 hours following 10 minutes of bilateral common carotid artery...