Introduction: The impact of climate change on food production in South Africa is likely to increase due low rainfall and frequent droughts, resulting insecurity the future. use well-calibrated validated crop models with data important for assessing impacts developing adaptation strategies. In this study, decision support system agrotechnology transfer (DSSAT) model was used predict yield using ...

We have investigated the possibility of main belt asteroids being trapped in the 1:1 resonance with other asteroids. Using contemporary mass estimates for the large asteroids (1) Ceres, (2) Pallas and (4) Vesta, it is found that four asteroids are temporarily trapped in such resonances with Ceres and Vesta during numerical integrations spanning 2 × 106 yr. In particular, the asteroid (1372) Har...

Observations and models of Ceres suggest that its evolution was shaped by interactions between liquid water and silicate rock. Hydrothermal processes in a heated core require both fractured rock and liquid. Using a new core cracking model coupled to a thermal evolution code, we find volumes of fractured rock always large enough for significant interaction to occur. Therefore, liquid persistence...

MOTIVATION There is accumulating evidence that the chromatin environment of transcription factor (TF) binding sites in promoter regions has a critical influence on their regulatory potential. Recent studies have mapped TF binding sites and nucleosome positions throughout the yeast genome; however, there is a lack of computation tools to integrate these data types. RESULTS We have developed th...

conclusions the results indicated that the model, compared with other models, was user-friendly and the desired results were obtained by a minimal data. materials and methods the current paper developed a process model. first, a sketch of nitrate and ammonia storage, their specifications and parameters were set out and created on a page, and then, mathematical relations of each process were set...

A simulation study was conducted for two maize cultivars (PMH1 and PMH2) under Representative Concentration Pathways (RCPs) in four agroclimatic zones of Punjab state India where climate change depicts a consistent rise temperature variability rainfall. The rainfall varied from location to so zone II (Ballowal Saunkhri), III (Ludhiana, Amritsar, Patiala), IV (Bathinda), V (Abohar Faridkot) were...

A key question in predicting responses to anthropogenic climate change is: how quickly can species adapt to different climatic conditions? Here, we take a phylogenetic approach to this question. We use 17 time-calibrated phylogenies representing the major tetrapod clades (amphibians, birds, crocodilians, mammals, squamates, turtles) and climatic data from distributions of > 500 extant species. ...