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 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.

scholarly journals Pion Observables in the Extended NJL Model with Vector and Axial-Vector Mesons

1996 ◽  
Vol 249 (2) ◽  
pp. 499-531 ◽  
Author(s):  
Véronique Bernard ◽  
Alex H. Blin ◽  
Brigitte Hiller ◽  
Yuri P. Ivanov ◽  
Alexander A. Osipov ◽  
...  
Keyword(s):  
Axial Vector ◽  
Vector Mesons ◽  
Njl Model

scholarly journals NJL INTERACTION DERIVED FROM QCD: VECTOR AND AXIAL-VECTOR MESONS

2009 ◽  
Vol 24 (13) ◽  
pp. 2415-2430 ◽  
Author(s):  
B. A. ARBUZOV ◽  
M. K. VOLKOV ◽  
I. V. ZAITSEV
Keyword(s):  
Quark Mass ◽  
Light Quark ◽  
Axial Vector ◽  
Vector Mesons ◽  
Strong Decay ◽  
Njl Model ◽  
Pseudoscalar Mesons ◽  
Decay Widths ◽  
Light Quark Mass ◽  
Existing Data

In previous works effective nonlocal SU (2)× SU (2) NJL model was proposed in which all the parameters are expressed through those of the fundamental QCD: current light quark mass m0 and average nonperturbative αs. The results for scalar and pseudoscalar mesons are in satisfactory correspondence to existing data. In the present work the same model without introduction of any additional parameters is applied for a description of masses and strong decay widths of ρ- and a1-mesons. The results for both scalar and vector sectors agree with data up to accuracy of the model.

scholarly journals Role of axial-vector mesons near the chiral phase transition

2009 ◽  
Vol 827 (1-4) ◽  
pp. 350c-352c ◽  
Author(s):  
Chihiro Sasaki ◽  
Masayasu Harada ◽  
Wolfram Weise
Keyword(s):  
Phase Transition ◽  
Axial Vector ◽  
Vector Mesons ◽  
Chiral Phase ◽  
Chiral Phase Transition

scholarly journals The decays τ → (K,K(1460))ντ and the value of the weak decay constants FK and FK′ in the extended NJL model

2019 ◽  
Vol 34 (24) ◽  
pp. 1950137 ◽  
Author(s):  
M. K. Volkov ◽  
K. Nurlan ◽  
A. A. Pivovarov
Keyword(s):  
Excited State ◽  
Axial Vector ◽  
Weak Decay ◽  
Vector Mesons ◽  
Decay Constants ◽  
Njl Model ◽  
Decay Widths ◽  
State Formula

In the extended Nambu–Jona-Lasinio (NJL) model, the decay widths of [Formula: see text], [Formula: see text] are calculated. The contributions from intermediate axial-vector mesons [Formula: see text], [Formula: see text] and the first radially excited state [Formula: see text] are taken into account. Estimates for the weak decay constants [Formula: see text] and [Formula: see text] are given. Predictions are made for the width of [Formula: see text] decay and [Formula: see text] constant.

Development of Social and Economic Forecasting and Ideas of A. Anchishkin

2013 ◽  
pp. 143-155
Author(s):  
A. Klepach ◽  
G. Kuranov
Keyword(s):  
Economic Planning ◽  
Special Role ◽  
Economic Management ◽  
Economic Forecasting ◽  
Russian Economy ◽  
World Economic ◽  
Long Term Forecasting ◽  
Working Out

The role of the prominent Soviet economist, academician A. Anchishkin (1933—1987), whose 80th birth anniversary we celebrate this year, in the development of ideas and formation of economic forecasting in the country at the time when the directive planning acted as a leading tool of economic management is explored in the article. Besides, Anchishkin’s special role is noted in developing a comprehensive program of scientific and technical progress, an information basis for working out long-term forecasts of the country’s development, moreover, his contribution to the creation of long-term forecasting methodology and improvement of the statistical basis for economic analysis and economic planning. The authors show that social and economic forecasting in the period after 1991, which has undertaken a number of functions of economic planning, has largely relied on further development of Anchishkin’s ideas, at the same time responding to new challenges for the Russian economy development during its entry into the world economic system.

METHODOLOGY OF PLAYING ACTIVITY IN REHABILITATION PRACTICE

2018 ◽  
Vol 28 (7) ◽  
pp. 2543-2548
Author(s):  
Petya Kasnakova
Keyword(s):  
Positive Emotions ◽  
Healing Process ◽  
Disease Process ◽  
Special Role ◽  
Thought Processes ◽  
Active Involvement ◽  
Movement Skills ◽  
Movement Training ◽  
Motor Movement

The games play a special role in rehabilitation practice. The positive emotions they cause in patients cannot be achieved by other methods and means of modern rehabilitation. The role of game playing activity in practice is crucial to the achievement of one of the important tasks in implementing rehabilitation measures, namely to evacuate the patient from the depressed mental state, to distract him from the disease process and to focus on mobilizing his healing powers. The mood, the emotional charge and the dynamics that the games create are particularly suited to awakening the patient's interest in the healing process, their attraction and their active involvement in the rehabilitation activities. The connection between the actions in the game and the movements in the analytical exercises accelerates the formation of motor habits, physical qualities and skills not only in children but also in adult patients with various pathological injuries. Rehabilitation games are suitable for all ages by enhancing the health of the occupants, developing their mental qualities, improving the activity of the vestibular, visual and motor analyzers. The basis of the motor movement training game methodology and the improvement of motor movement skills is the activation of the thought processes and emotional experiences, the development of the functions of the musculoskeletal system, the cardiovascular system and the respiratory system.

РОЛЬ КНИГИ В ВОСПИТАНИИ ПОЛИКУЛЬТУРНОЙ ЛИЧНОСТИ

2020 ◽  
pp. 58-60
Author(s):  
Замира Сейткожоева
Keyword(s):  
Computer Games ◽  
Human Life ◽  
Interpersonal Relationship ◽  
Special Role ◽  
Multicultural Personality ◽  
Younger Age ◽  
Bibliographic Data ◽  
Life Education ◽  
Different Cultures

Аннотация: В статье обращено внимание на исключительную роль книги в жизни человека, воспитание молодежи. Книга сопровождает человека всю жизнь. Однако в последние годы замечается снижение интереса к чтению книг. Отдается предпочтение компьютеру, играм, телевизору, слушанию музыки через наушники. Во избежание деградации личности, в воспитании грамотной, гуманной, толерантной личности необходимо приучать подрастающее поколение к вдумчивому чтению книг. Значительное место в развитии личности занимает внеклассное чтение, к которому нужно прививать интерес еще во время учебы в младшем возрасте. В мире особая роль принадлежит межличностным отношениям, формированию такой личности, которая могла бы жить в согласии с носителями разных культур. Для формирования поликультурной личности важная роль принадлежит культурному наследию, основу которого составляют книги. Ключевые слова: роль книги, гуманная личность, толерантная личность, библиографические материалы, указатели библиографических данных, справочная литература, поликультурная личность, внеклассное чтение, информатизация, интерес к чтению. Аннотация: Макалада адамдын жашоосундагы жаштарды тарбиялоодогу китептин өзгөчө мааниси, ролуна өзгөчө көңүл бурулган. Бир эле мезгилде, соңку жылдарда китептерибизге болгон адамдардын кызыгууларды төмөндөп бараткандыгы байкалган.Учурда поли- же ар кандай оюндарга, телевизор көрүүгө, кулакчын аркылуу модалуу музыка угууга, артыкчылык берилип жатат. Билимдүү, гумандуу толеранттуу инсанды тарбиялап чыгууга да, анын деградацияга кабылышынан сактап калыш үчүн, өсүп келе жаткан муундарды өзүнүн айкалыштыра алуусу менен китептерди берилип жана ой жүгүртүп алууга үйрөтүү- өтө зарыл талап болуп эсептелет. Инсандын онүгүндө окуудан тышкаркы окуунун маанилүү орду бар. Мындай окууга буга кызыгуусун өркүндөтүүнун башталгыч каласстардан тарта үйрөтүү абзел. Инсандар аралык байланыштар дүйнөдө өзгөчө орун ээлейт, алар башка маданий өкүлдөрү менен макулдуктулукта жашоого даяр. Полимаданиятту инсандын калыптанышына ар маданияттын мурасы өтө чоң ролду ойнойт, анын негизин китептер түзөт. Түйүндүү сөздөр: китептин мааниси жана ролу, гумандуу инсан, толеранттуу инсан, библиографиялык материалдар, библиографиялык маалыматтарды көрсөтүү сурантыла билүү адабияты, полимаданиятуу инсан, окуудан тышкаркы окуу,маалымдуулук, окууга кызыгуу The article draws attention to the exceptional role of the book in human life, education of young people. The book accompanies a person all his life. However, in recent years, there has been a decline in interest in reading books. Preference is given to a computer, games, TV, listening to music through headphones. In order to avoid degradation of the personality, it is necessary to accustom the younger generation to thoughtful reading of books. a significant place in the development of personality takes extracurricular reading, to which you need to instill interest even while studying at a younger age. In the world a special role belongs to interpersonal relationship, the formation of such a personality, who could live in harmony with speakers of different cultures. To form a multicultural personality an important role belongs to cultural heritage, the basis of which are books Keywords: the role of the book, humane personality, tolerant personality, bibliographic materials, indexes of bibliographic data, reference literature, multicultural personality, extracurricular reading, informatization, interest in reading.

Diet and Nutritional Interventions with the Special Role of Myo-Inositol in Gestational Diabetes Mellitus Management. An Evidence-Based Critical Appraisal

2019 ◽  
Vol 25 (22) ◽  
pp. 2467-2473 ◽  
Author(s):  
Enrique Reyes-Muñoz ◽  
Federica Di Guardo ◽  
Michal Ciebiera ◽  
Ilker Kahramanoglu ◽  
Thozhukat Sathyapalan ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Metabolic Diseases ◽  
Nutritional Intervention ◽  
Attractive Alternative ◽  
Special Role ◽  
Dose Frequency ◽  
Nutritional Interventions

Background: Gestational Diabetes Mellitus (GDM), defined as glucose intolerance with onset or first recognition during pregnancy, represents one of the most common maternal-fetal complications during pregnancy and it is associated with poor perinatal outcomes. To date, GDM is a rising condition over the last decades coinciding with the ongoing epidemic of obesity and Type 2 Diabetes Mellitus (T2DM). Objective: The aim of this review is to discuss the role of diet and nutritional interventions in preventing GDM with the explanation of the special role of myo-inositol (MI) in this matter. Methods: We performed an overview of the most recent literature data on the subject with particular attention to the effectiveness of diet and nutritional interventions in the prevention of GDM with the special role of MI. Results: Nutritional intervention and physical activity before and during pregnancy are mandatory in women affected by GDM. Moreover, the availability of insulin-sensitizers such as different forms of inositol has dramatically changed the scenario, allowing the treatment of several metabolic diseases, such as those related to glucose dysbalance. Although the optimal dose, frequency, and form of MI administration need to be further investigated, diet supplementation with MI appears to be an attractive alternative for the GDM prevention as well as for the reduction of GDM-related complications. Conclusion: More studies should be conducted to prove the most effective nutritional intervention in GDM. Regarding the potential effectiveness of MI, further evidence in multicenter, randomized controlled trials is needed to draw firm conclusions.

Sign in / Sign up

Export Citation Format

Share Document