In this paper, we propose so-called fattened complex manifolds as target spaces for the topological B-model. We naturally obtain these manifolds by restricting the structure sheaf of the N = 4 supertwistor space, a process, which can be understood as a fermionic dimensional reduction. Using the twistorial description of these fattened complex manifolds, we construct Penrose-Ward transforms betw...

We study the near-flat space limit for strings on AdS5 × M5, where the internal manifold M5 is equipped with a generic metric with U(1)3 isometry. In the bosonic sector, the limiting sigma model is similar to the one found for AdS5 × S5, as the global symmetries are reduced in the most general case. When M5 is a SasakiEinstein space like T 1,1, Y p,q and Lp,q,r, whose dual CFT’s have N = 1 supe...

There is a direct link between global warming and hunger in emerging West African nations like Ivory Coast, where the population overgrowing, food insecurity rising. This work aims to examine explore climate change's effects on agriculture production Coast from 1990 2019. Various stationarity tests, including Phillips-Perron (PP) Augmented Dickey-Fuller (ADF), are applied determine variables' o...

The transport investment is often used as a tool for economic development and urbanization. However, there still debate about whether improvements promote urbanization or, conversely, these latter create the conditions that stimulate transport. In theory, system contributes to because it speeds up exchange of goods services, but effects can also be reversed, so direction causality not easily id...

a r t i c l e i n f o JEL classification: C1 Q4 Keywords: Electricity demand elasticity Disaggregated data Cointegration Granger causality Structural break German industry We estimate electricity demand elasticities for eight subsectors of the German manufacturing industry using annual data from EU-KLEMS and the International Energy Agency for 1970–2007. The subsectoral approach allows to retai...

analyzing the efficiency of agricultural productions plays an important role in raising their productions and performances without spending extra cost. in this studythis study evaluated were the interval evaluated e fficiency and no efficiency of interval for greenhouseof greenhouse cucumber producers somefor some subsectors of sistan region. this research was donethe study conducted on the bas...

Camping is an outdoor accommodation and type of recreation that susceptible to weather climate change. Camping—in addition the relationships camping shares with weather— remains understudied despite subsectors’ salient economic impact high participation rate. The observable effects non-meteorological/climatological (e.g., pandemic) also a topic has received limited attention. Accordingly, we in...