A new exactly integrable hypergeometric potential for the Schr\"odinger equation

We introduce a new exactly integrable potential for the Schr\"odinger equation for which the solution of the problem may be expressed in terms of the Gauss hypergeometric functions. This is a potential step with variable height and steepness. We present the general solution of the problem, discuss the transmission of a quantum particle above the barrier, and derive explicit expressions for the reflection and transmission coefficients

DEVELOPING SPEAKING SKILLS THROUGH FAIRY TALES IN ELEMENTARY SCHOOL

As the objective of EFL teaching is to help students to communicate fluently in the target language, teachers should provide authentic models of language use for every level and age. To hit the target we should focus not only on linguistic, but also on literary and cultural elements. Since fairy tales offer these elements, they are highly beneficial to use in EFL teaching programs, especially for young learners.It should be taken into consideration that the selection of fairy tales should be done in reference to the course objective, the learners’ age and the story content. Since every teaching situation is unique, the use of every single piece of fairy tale varies from class to class and from teacher to teacher. But, anyhow, using fairy tales in Elementary English courses as literary works tends to improve communicative competence and provide a springboard for the development of critical thinking and aesthetic appreciation. It is advantageous for many benefits, like cultural enrichment, language advancement, higher-order thinking, and many more. To accomplish the following purpose, there is a great significance given to the methodology and strategies to teaching English through Fairy Tales.As the objective of EFL teaching is to help students to communicate fluently in the target language, teachers should provide authentic models of language use for every level and age. To hit the target we should focus not only on linguistic, but also on literary and cultural elements. Since fairy tales offer these elements, they are highly beneficial to use in EFL teaching programs, especially for young learners.It should be taken into consideration that the selection of fairy tales should be done in reference to the course objective, the learners’ age and the story content. Since every teaching situation is unique, the use of every single piece of fairy tale varies from class to class and from teacher to teacher. But, anyhow, using fairy tales in Elementary English courses as literary works tends to improve communicative competence and provide a springboard for the development of critical thinking and aesthetic appreciation. It is advantageous for many benefits, like cultural enrichment, language advancement, higher-order thinking, and many more. To accomplish the following purpose, there is a great significance given to the methodology and strategies to teaching English through Fairy Tales

RhoA GTPase Activation by TLR2 and TLR3 Ligands: Connecting via Src to NF- B

Rho GTPases are essential regulators of signaling networks emanating from many receptors involved in innate or adaptive immunity. The Rho family member RhoA controls cytoskeletal processes as well as the activity of transcription factors such as NF-κB, C/EBP and serum response factor. The multifaceted host cell activation triggered by Toll-like receptors (TLRs) in response to soluble and particulate microbial structures includes rapid stimulation of RhoA activity. RhoA acts downstream of TLR2 in HEK-TLR2 and monocytic THP-1 cells, but the signaling pathway connecting TLR2 and RhoA is still unknown. It is also not clear if RhoA activation is dependent on a certain TLR adapter. Using lung epithelial cells, we demonstrate TLR2- and TLR3-triggered recruitment and activation of RhoA at receptor-proximal cellular compartments. RhoA activity was dependent on TLR-mediated stimulation of Src family kinases. Both Src family kinases and RhoA were required for NF-κB activation, while RhoA was dispensable for type I interferon generation. These results suggest that RhoA plays a role downstream of MyD88-dependent and -independent TLR signaling and acts as a molecular switch downstream of TLR-Src initiated pathways

Information and Communication Technologies— Opportunities to Mobilize Agricultural Science for Development

Knowledge, information, and data—and the social and physical infrastructures that carry them—are widely recognized as key building blocks for more sustainable agriculture, effective agricultural science, and productive partnerships among the global research community. Through investments in e-Science infrastructure and collaboration on one hand, and rapid developments in digital devices and connectivity in rural areas, the ways that scientists, academics, and development workers create, share, and apply agricultural knowledge is being transformed through the use of information and communication technologies (ICTs). This paper examines some trends and opportunities associated with the use of these ICTs in agriculturalscience for development