scholarly journals The interplay of transverse degrees of freedom and axial-vector mesons with short-distance constraints in g−2

2021 ◽  
Author(s):  
Pere Masjuan ◽  
Pablo Roig ◽  
Pablo Sanchez Puertas
Keyword(s):  
Short Distance ◽  
Degrees Of Freedom ◽  
Axial Vector ◽  
Form Factors ◽  
Experimental Result ◽  
Special Focus ◽  
Vector Mesons ◽  
Distance Constraints ◽  
The Past

Abstract We revisit well-known short-distance constraints relating the hadronic light-by light Green's function to the〈VVA〉one, that have been a subject of debate over the past years in the context of the muon (g-2). Specifically, we identify a relation among the longitudinal and transverse degrees of freedom that is enforced by the axial anomaly that, by contrast, has not received attention in the past. Such relation allows, among other things, to overcome the problem of basis ambiguities when describing axial-vector mesons transition form factors, but further applications are discussed as well, with special focus on the role of axial-vector mesons in the HLbL contribution to the muon (g-2). Our results should also contribute to a better understanding of the, so far, controversial interplay among short-distance constraints with longitudinal and transverse degrees of freedom, such as axial-vector mesons. This is key to confront the theoretical and experimental result for the muon (g-2) that, currently, exhibits a 4.2σ tension.

New Agendas for Special Education Policy: What the National Reports Haven't Said

1987 ◽  
Vol 53 (4) ◽  
pp. 295-299 ◽  
Author(s):  
Marleen Pugach ◽  
Mara Sapon-Shevin
Keyword(s):  
Special Education ◽  
Education Policy ◽  
Educational Reform ◽  
Special Focus ◽  
Special Education Policy ◽  
The Past ◽  
The Subject ◽  
The Impact ◽  
The Relationship

The calls for educational reform that have dominated the professional and lay literature for the past few years have been decidedly silent in discussing the role of special education either as a contributor or a solution to the problems being raised. As an introduction to this “Special Focus” on the relationship between general educational reform and special education, this article summarizes some of the more prominent reports with regard to their treatment (and nontreatment) of special education. The impact of proposed reforms for the conceptualization and operation of special education is the subject of the five articles that follow.

scholarly journals THE SKYRMION LIMIT OF THE NAMBU–JONA-LASINIO SOLITON

1995 ◽  
Vol 10 (01) ◽  
pp. 67-78 ◽  
Author(s):  
U. ZÜCKERT ◽  
R. ALKOFER ◽  
H. REINHARDT ◽  
H. WEIGEL
Keyword(s):  
Axial Vector ◽  
Soliton Solutions ◽  
Type Model ◽  
Special Role ◽  
Vector Mesons ◽  
Gradient Expansion ◽  
Njl Model

The special role of the isoscalar mesons (σ and ω) in the NJL soliton is discussed. Stable soliton solutions are obtained when the most general ansatz compatible with vanishing grand spin is assumed. These solutions are compared to soliton solutions of a purely pseudoscalar Skyrme type model which is related to the NJL model by a gradient expansion and the limit of infinitely heavy (axial-) vector mesons.

scholarly journals The Asian Rice Sector at a Crossroads

2020 ◽  
Vol 65 (4) ◽  
Author(s):  
Samarendu Mohanty
Keyword(s):  
Structural Changes ◽  
Special Focus ◽  
Asian Countries ◽  
Recent Past ◽  
Nutrition Security ◽  
The Past ◽  
Asian Rice ◽  
Rice Area ◽  
Key Issues

This paper examined the trend in Asian rice production, role of rice in human nutrition and documents structure of rice market in major Asian Countries, by analyzing supply demand and trade scenarios for the fast five decades. Country wise data from FAOSTAT and WTO were collected for the past five decades, to analyze key issues related to rice sector with special focus on rice markets in Asia. Rice Area and production has been increased significantly at higher rate than the population growth rate in Asia over the past fifty years. This resulted in increase of per capita availability of rice and contributed significantly to nutrition security. However, there are wide imbalances in supply-demand across Asian countries. Thus rice trade has become a major global economic activity in the recent past. The structural changes in global rice markets are discussed in detail in the paper.

scholarly journals A Sociotechnical Framework for Smart Urban Governance

2020 ◽  
Vol 9 (1) ◽  
pp. 1-19 ◽  
Author(s):  
Huaxiong Jiang ◽  
Stan Geertman ◽  
Patrick Witte
Keyword(s):  
Technological Innovation ◽  
Urban Governance ◽  
Smart Cities ◽  
Special Focus ◽  
Urban Context ◽  
The Past ◽  
Use Of Technology ◽  
Governance Process ◽  
Urban Contexts

Over the past decade, the dominant entrepreneurial form of urban governance has seriously hindered the transformation of cities by neglecting the role of urban contexts in shaping governance structures and outcomes. To promote alternatives, this article presents a sociotechnical framework for smart urban governance. This framework explicitly examines the impacts of urban contexts on the sociotechnical interaction between urban technological innovation and urban governance in the realm of smart cities. Three real-world cases were used to demonstrate how the framework can be applied in different urban contexts. The results show that the alleged smartness in smart urban governance by no means implies the simple acceptance, adoption, and use of technology; instead, it needs to be conditionate. For successful smart urban governance, urban technological innovation should be effectively attuned to the wider urban actors and preexisting urban challenges (i.e., the urban governance process), with a special focus on the urban context.

scholarly journals SAPONINS AND SAPOGENINS OF AGAVE WITH RESPECT TO DIVERSE PHARMACOLOGICAL ROLE OF HECOGENIN

2020 ◽  
pp. 1-7
Author(s):  
DEEPA K. INGAWALE (MANDLIK)
Keyword(s):  
Potential Role ◽  
Web Of Science ◽  
Literature Survey ◽  
Special Focus ◽  
Steroidal Sapogenin ◽  
Pharmacological Activities ◽  
The Past ◽  
Agave Sisalana ◽  
Agave Cantala

The review outlines the current understandings of saponins and sapogenins in agave species with special focus on pharmacological role of hecogenin in numerous preclinical studies. A systematic literature survey was done on the pharmacological activities of hecogenin during the past 40 y with electronic databases like PubMed, Science Direct, Wiley, SciFinder, Google Scholar, Web of Science and Scopus. Hecogenin, a steroidal sapogenin found abundantly in the leaves of Agave genus species such as, Agave sisalana, Agave cantala, Agave aurea and many more. This phytosteroid (hecogenin) is used as initial material for the synthesis of steroidal drugs in the pharmaceutical industry. Hecogenin has exhibited potential role in the management of a number of disorders such as inflammation, arthritis, cancer, gastric ulcer, cardiotonic and larvicidal activity. In this review, we have summarized the saponins and sapogenins present in the Agave species and pharmacological roles of hecogenin with their mechanism of action.

scholarly journals Molecular Crosstalking among Noncoding RNAs: A New Network Layer of Genome Regulation in Cancer

2017 ◽  
Vol 2017 ◽  
pp. 1-17 ◽  
Author(s):  
Marco Ragusa ◽  
Cristina Barbagallo ◽  
Duilia Brex ◽  
Angela Caponnetto ◽  
Matilde Cirnigliaro ◽  
...  
Keyword(s):  
Molecular Mechanisms ◽  
Structural Integrity ◽  
Current Knowledge ◽  
Noncoding Rnas ◽  
Special Focus ◽  
Cellular Mechanisms ◽  
Protein Coding ◽  
The Past ◽  
Higher Eukaryotes

Over the past few years, noncoding RNAs (ncRNAs) have been extensively studied because of the significant biological roles that they play in regulation of cellular mechanisms. ncRNAs are associated to higher eukaryotes complexity; accordingly, their dysfunction results in pathological phenotypes, including cancer. To date, most research efforts have been mainly focused on how ncRNAs could modulate the expression of protein-coding genes in pathological phenotypes. However, recent evidence has shown the existence of an unexpected interplay among ncRNAs that strongly influences cancer development and progression. ncRNAs can interact with and regulate each other through various molecular mechanisms generating a complex network including different species of RNAs (e.g., mRNAs, miRNAs, lncRNAs, and circRNAs). Such a hidden network of RNA-RNA competitive interactions pervades and modulates the physiological functioning of canonical protein-coding pathways involved in proliferation, differentiation, and metastasis in cancer. Moreover, the pivotal role of ncRNAs as keystones of network structural integrity makes them very attractive and promising targets for innovative RNA-based therapeutics. In this review we will discuss: (1) the current knowledge on complex crosstalk among ncRNAs, with a special focus on cancer; and (2) the main issues and criticisms concerning ncRNAs targeting in therapeutics.

scholarly journals Form factors of vector and axial-vector mesons in holographic D4-D8 model

2010 ◽  
Vol 2010 (1) ◽  
Author(s):  
C. A. Ballon Bayona ◽  
Henrique Boschi-Filho ◽  
Nelson R.F. Braga ◽  
Marcus A.C. Torres
Keyword(s):  
Axial Vector ◽  
Form Factors ◽  
Vector Mesons

Food and Mediations

2021 ◽  
pp. 181-199
Author(s):  
Rupali Sehgal
Keyword(s):  
Food Culture ◽  
Special Focus ◽  
Material Life ◽  
The Past ◽  
Cultural Imaginary ◽  
History Of ◽  
The Creation ◽  
Cultural Expressions ◽  
Multiple Intersections

The chapter attempts to look at food and its representation in media with a special focus on Punjab and its cuisine. The work locates important symbols pertaining to the food culture of Punjab in sites such as cookbooks and cinema, which interestingly mix traditional with contemporary representations of material life. The first section looks at the cultural expressions of Punjabi cuisine in cookbooks against the backdrop of the history of Punjab, its ancient ties, and cultural affiliations of the past. Questions of caste, gastro-ethnicity, and stereotyping are also examined. The second section attempts to review select Bollywood films in order to cast light onto the contemporary socio-cultural conceptions of Punjabi culture. The study concludes by observing the ways in which food emerges as a commodity spectacle through stories and ideas on the food of Punjab. The work is carried out in order to exemplify the role of food in the creation of a cultural imaginary and explore the subtle connection that food and food culture share with the multiple intersections of an individual's identity.

scholarly journals The Role of Soil Fungi in K+ Plant Nutrition

2019 ◽  
Vol 20 (13) ◽  
pp. 3169 ◽  
Author(s):  
Rosario Haro ◽  
Begoña Benito
Keyword(s):  
Crop Production ◽  
Soil Microorganisms ◽  
Soil Fungi ◽  
Close Contact ◽  
Plant Cells ◽  
Mineral Nutrients ◽  
Special Focus ◽  
The Past ◽  
Transgenic Breeding

K+ is an essential cation and the most abundant in plant cells. After N, its corresponding element, K, is the nutrient required in the largest amounts by plants. Despite the numerous roles of K in crop production, improvements in the uptake and efficiency of use of K have not been major focuses in conventional or transgenic breeding studies in the past. In research on the mineral nutrition of plants in general, and K in particular, this nutrient has been shown to be essential to soil-dwelling-microorganisms (fungi, bacteria, protozoa, nematodes, etc.) that form mutualistic associations and that can influence the availability of mineral nutrients for plants. Therefore, this article aims to provide an overview of the role of soil microorganisms in supplying K+ to plants, considering both the potassium-solubilizing microorganisms and the potassium-facilitating microorganisms that are in close contact with the roots of plants. These microorganisms can influence the active transporter-mediated transfer of K+. Regarding the latter group of microorganisms, special focus is placed on the role of endophytic fungus. This review also includes a discussion on productivity through sustainable agriculture.

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