The role of screening corrections in smallx-behaviour of structure functions

1995 ◽  
Vol 66 (1-2) ◽  
pp. 151-155 ◽  
Author(s):  
M. G. Ryskin ◽  
Yu. M. Shabelski
Keyword(s):  
Structure Functions

scholarly journals MYH9: Structure, functions and role of non-muscle myosin IIA in human disease

Gene ◽  
2018 ◽  
Vol 664 ◽  
pp. 152-167 ◽  
Author(s):  
Alessandro Pecci ◽  
Xuefei Ma ◽  
Anna Savoia ◽  
Robert S. Adelstein
Keyword(s):  
Human Disease ◽  
Structure Functions ◽  
Myosin Iia ◽  
Muscle Myosin

scholarly journals Expert Knowledge: Its Structure, Functions and Limits

Studia Humana ◽  
2018 ◽  
Vol 7 (3) ◽  
pp. 11-20
Author(s):  
Marek Hetmański
Keyword(s):  
Social Cognitive ◽  
Cognitive Biases ◽  
Expert Knowledge ◽  
Structure Functions

Abstract Expert knowledge - a concept associated with Ryle’s distinction of knowledgethat and knowledge-how - functions in distinct areas of knowledge and social expertise. Consisting of both propositional (declarative) and procedural (instrumental) knowledge, expertise is performative in its essence. It depends not only on expert’s experience and cognitive competences, but also on his or her social and institutional position. The paper considers the role of heuristic and intuitional abilities, including particular experts’ cognitive biases, as the vital and indispensable part of expertise. On the basis of selected managerial and juridical examples (procedures, standards, norms and institutional regulations) it analyzes the epistemological issues: the autonomy versus dependence of expert knowledge as well as the influence of social-cognitive circumstances on expertise.

THE ROLE OF FERMI MOTION ON THE STRUCTURE FUNCTIONS OF 3He AND 3H NUCLEI IN THE QUARK EXCHANGE FRAMEWORK

2013 ◽  
Vol 22 (06) ◽  
pp. 1350037 ◽  
Author(s):  
M. MODARRES ◽  
M. RASTI
Keyword(s):  
Experimental Data ◽  
Wave Function ◽  
Three Dimensional ◽  
Structure Functions ◽  
Exchange Model ◽  
Coordinate Space ◽  
Nuclear Wave Function ◽  
Fermi Motion ◽  
Nucleon Wave Function

The quark exchange model and the full three-nucleon wave function in the configuration space are used to evaluate the role of Fermi motion on the structure functions (SFs) of helium-3 and tritium nuclei. The three-nucleon wave function is obtained from the solution of the Faddeev equations with the Malfliet–Tjon-type potential, by using the three-dimensional approach as a function of the magnitudes of the Jacobi momenta vectors and the angle between them. In this calculation, the initial valence quarks inputs are taken from the GRV's (Glück, Reya and Vogt) fitting procedure and the next-to-leading order (NLO) QCD calculation on [Formula: see text], which give a very good fit to the available experimental data in the (x, Q2)-plane. The role of Fermi motion on the EMC ratio of the SFs of 3 He and 3 H nuclei are analyzed through the NLO expansion of the nuclear wave function in the coordinate space. A good agreement between the calculated EMC ratios, the corresponding experimental data and the theoretical results is found. Finally, the ratios of the SFs of the neutron to the proton (with the isospin symmetry assumption) with and without the Fermi motion effect, are also calculated, and they are compared with the available experimental data. Our results show that the roles of the Fermi motion in the framework of the quark exchange model for the calculations of the nuclear SFs are important.

scholarly journals The extended mind hypothesis: an anti-metaphysical vaccine

Sofia ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 10-29
Author(s):  
Giorgio Airoldi
Keyword(s):  
Philosophy Of Mind ◽  
A Priori ◽  
Extended Mind ◽  
Structure Functions ◽  
Human Cognition ◽  
Internal Representations ◽  
Decision Center ◽  
Per Se ◽  
Internal Domain

Discussions about the extended mind have ‘extended’ in various directions in the last decades. While applied to other aspects of human cognition and even consciousness, the extended-mind hypothesis has also been criticized, as it questions fundamental ideas such as the image of a dual world, divided between an external and an internal domain by the border of ‘skin and skull’, the idea of a localized and constant decision center, and the role of internal representations. We suggest that the main virtue of the hypothesis is not as a theory per se, but as a vaccine against persistent metaphysical prejudices about the mind’s structure, functions and borders. Being an hypothesis about the most efficient ways to combine resources and problems, and not a theory about the mind’s a-priori constitution, the extended mind view moves the focus from ontology to pragmatics and helps purify philosophy of mind from metaphysical remainders.

scholarly journals Kod geopolityczny – koncepcja teoretyczna i metodologiczna

Politeja ◽  
2019 ◽  
Vol 16 (4(61)) ◽  
pp. 297-315
Author(s):  
Piotr Lewandowski
Keyword(s):  
Information Security ◽  
Research Methods ◽  
Security Policy ◽  
Structure Functions ◽  
Information Security Policy ◽  
Basic Assumptions ◽  
Political Sciences ◽  
Cultural Codes

Geopolitical Code – Theoretical and Methodological Concepts The article deals with geopolitical codes in relation to theoretical and methodological assumptions of social and political sciences. Geopolitical codes are considered in broad reference to the cultural and national codes of mythical narratives. The aim of this article is to transform cultural codes into analytical and methodological categories. The article includes an analysis of the concept of geopolitical code, its definition, and its classification as a set of social ideas. The text verifies the basic assumptions of geopolitical code: its structure, functions and possibilities of verification in the existing research methods of social, political and security sciences. The author also draws attention to the role of geopolitical codes in forming the state’s information security policy.

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