scholarly journals DUALITY PICTURE BETWEEN ANTIFERROMAGNETISM AND d-WAVE SUPERCONDUCTIVITY IN t-J MODEL AT TWO DIMENSIONS

2000 ◽  
Vol 14 (04) ◽  
pp. 349-369
Author(s):  
TAI KAI NG
Keyword(s):  
Phase Diagram ◽  
Two Dimensions ◽  
The Other ◽  
Elementary Excitations ◽  
Topological Excitations ◽  
Superconducting Phases ◽  
Energy Gaps ◽  
D Wave

We show in this paper an interesting relation between elementary and topological excitations in the antiferromagnetic and d-wave superconducting phases of the t–J model at two dimensions. The topological spin and charge excitations in one phase have the same dynamics as elementary excitations in the other phase, except the appearance of energy gaps. Moreover, the transition from one phase to another can be described as a quantum disordering transition associated with the topological excitations. Based on the above picture, a plausible phase diagram of t–J model is constructed.

Environmental Scanning for Organisational Effectiveness: A Study of Select MSMEs of Jammu and Kashmir, India

2015 ◽  
Vol 4 (3) ◽  
Author(s):  
Vinay Chauhan ◽  
Sushma Kaushal
Keyword(s):  
Organizational Effectiveness ◽  
Business Environment ◽  
Two Dimensions ◽  
The State ◽  
The Other ◽  
Political Environment ◽  
Environmental Scanning ◽  
Jammu And Kashmir ◽  
Economic Dimension ◽  
The Impact

Environmental scanning yields greater anticipatory management that provides important inputs for aquitision and use of information for planning and designing organization strategies. Apart from this, effective environmental scanning activities are likely to deal with threats and grasp the opportunities to finally link with enhancing organizational effectiveness. In fact this relationship matrix has led the researchers to conduct an environmental scanning through an examination of the existing status the components of the macro-environment vis-a-vis their relationship with the organizational effectiveness. There are a number of approaches, which describe the macro-environment, of which PEST analysis is regarded as the most common approach for considering the external business environment. Thus, the present study applies PEST analysis to scan the existing business environment. Jammu and Kashmir due to its peculiar political, geographical, economic, and socio-cultural features, had led its cost mountain economy become a distinctive identity. Despite the fact that the state has rich endowments, international relations with its neighbours vis-a-vis its impact on political environment also pose developmental challenges for the business units operating in the state. This has provided valid rationale for conducting the present. The environmental scanning is done through the perception of the select entrepreneurs operating MSMEs in the state of J & K. An impact analysis of environmental factors (PEST) on the organizational effectiveness is also done in the study. The findings of the study show that the political environment of the state that is not favourable for entrepreneural development whereas the rest of the other drivers of PEST i.e. economic environment, socio-cultural environment, and technological environment show a favourable response of the entrepreneurs. In terms of cause and effect relationship, it is found that the first two drivers of the PEST i.e. political and economic dimension impacts OE positively whereas the other two dimensions namely socio-cultural and technological impacts OE negatively but it is pertinent to mention that the impact is very less and is insigninificant. The study also suggests some of strategic options for developing and creating an enabling environment for successful entrepreneurial development to achieve integrated development of the state.

Impact of Job Stress and Social Support on Job Satisfaction among Academic Staff

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Kumari Kumkum ◽  
R. N. Singh ◽  
Yogershi Rajpoot
Keyword(s):  
Social Support ◽  
Job Satisfaction ◽  
Job Stress ◽  
Positive Impact ◽  
Academic Staff ◽  
Two Dimensions ◽  
The Other ◽  
Human Beings ◽  
Negative Consequences ◽  
Four Dimensions

There may be so many negative consequences of stress for human beings and dissatisfaction among employees happens to be one of the major problems. It indicates negative feelings that individuals have regarding their jobs or its facets. On the other hand, social support is assumed to be mitigating the relationship between negative aspects of the work environment and job satisfaction. Job stress is said to be associated with job dissatisfaction as well as experience of strain. In view of the above, this study examined the role of job stress and social support in job satisfaction. The sample consisted of 30 school teachers from different school of Varanasi (U.P.). The job stress, job satisfaction and social support scales were administered on the participants. The responses of the participants were converted into scores for statistical analyses. The scores of participants on the scales were correlated. The findings revealed that job stress led to increased job satisfaction. It is against the proposed hypothesis and it appears as if the social support received by the participants is a factor behind it. Two of the four dimensions of social support were found to exert positive impact on job satisfaction but the other two dimensions were not found to be correlated with it. The findings are thoroughly discussed and interpreted.

Coping with longitudinal data in research on developmental psychopathology

2006 ◽  
Vol 30 (1) ◽  
pp. 20-25 ◽  
Author(s):  
David A. Cole
Keyword(s):  
Data Collection ◽  
Longitudinal Data ◽  
Developmental Psychopathology ◽  
Careful Consideration ◽  
Two Dimensions ◽  
The Other ◽  
Outcome Variable ◽  
The Third ◽  
Data Analytic ◽  
Over Time

Many outcome variables in developmental psychopathology research are highly stable over time. In conventional longitudinal data analytic approaches such as multiple regression, controlling for prior levels of the outcome variable often yields little (if any) reliable variance in the dependent variable for putative predictors to explain. Three strategies for coping with this problem are described. One involves focusing on developmental periods of transition, in which the outcome of interest may be less stable. A second is to give careful consideration to the amount of time allowed to elapse between waves of data collection. The third is to consider trait-state-occasion models that partition the outcome variable into two dimensions: one entirely stable and trait-like, the other less stable and subject to occasion-specific fluctuations.

scholarly journals Ground state and stability of the fractional plateau phase in metallic Shastry–Sutherland system TmB4

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Matúš Orendáč ◽  
Slavomír Gabáni ◽  
Pavol Farkašovský ◽  
Emil Gažo ◽  
Jozef Kačmarčík ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Phase Diagram ◽  
Ground State ◽  
Constant Magnetic Field ◽  
Paramagnetic Phase ◽  
The Other ◽  
Zero Field ◽  
Plateau Phase ◽  
Low Field ◽  
Zero Field Cooling

AbstractWe present a study of the ground state and stability of the fractional plateau phase (FPP) with M/Msat = 1/8 in the metallic Shastry–Sutherland system TmB4. Magnetization (M) measurements show that the FPP states are thermodynamically stable when the sample is cooled in constant magnetic field from the paramagnetic phase to the ordered one at 2 K. On the other hand, after zero-field cooling and subsequent magnetization these states appear to be of dynamic origin. In this case the FPP states are closely associated with the half plateau phase (HPP, M/Msat = ½), mediate the HPP to the low-field antiferromagnetic (AF) phase and depend on the thermodynamic history. Thus, in the same place of the phase diagram both, the stable and the metastable (dynamic) fractional plateau (FP) states, can be observed, depending on the way they are reached. In case of metastable FP states thermodynamic paths are identified that lead to very flat fractional plateaus in the FPP. Moreover, with a further decrease of magnetic field also the low-field AF phase becomes influenced and exhibits a plateau of the order of 1/1000 Msat.

scholarly journals Assessing a Linear Nanosystem's Limiting Reliability from its Components

2008 ◽  
Vol 45 (03) ◽  
pp. 879-887 ◽  
Author(s):  
Nader Ebrahimi
Keyword(s):  
Present State ◽  
Size Range ◽  
Two Dimensions ◽  
The Other ◽  
One Dimension ◽  
Present Moment ◽  
One Dimensional ◽  
The One ◽  
Fixed Moment ◽  
Nanosized Systems

Nanosystems are devices that are in the size range of a billionth of a meter (1 x 10-9) and therefore are built necessarily from individual atoms. The one-dimensional nanosystems or linear nanosystems cover all the nanosized systems which possess one dimension that exceeds the other two dimensions, i.e. extension over one dimension is predominant over the other two dimensions. Here only two of the dimensions have to be on the nanoscale (less than 100 nanometers). In this paper we consider the structural relationship between a linear nanosystem and its atoms acting as components of the nanosystem. Using such information, we then assess the nanosystem's limiting reliability which is, of course, probabilistic in nature. We consider the linear nanosystem at a fixed moment of time, say the present moment, and we assume that the present state of the linear nanosystem depends only on the present states of its atoms.

scholarly journals Study of arpes data and d-wave superconductivity using electronic models in two dimensions

1995 ◽  
Vol 56 (12) ◽  
pp. 1645-1649 ◽  
Author(s):  
A. Moreo ◽  
A. Nazarenko ◽  
S. Haas ◽  
A. Sandvik ◽  
E. Dagotto
Keyword(s):  
Two Dimensions ◽  
Arpes Data ◽  
D Wave

Multiple Superconducting Phases in UTe2: A Complex Analogy to Superfluid Phases of 3He

2021 ◽  
Vol 1 ◽  
Author(s):  
Shinsaku Kambe ◽  
Keyword(s):  
Phase Diagram ◽  
Physical Properties ◽  
Low Temperatures ◽  
Quantum Statistics ◽  
Superconducting Phases ◽  
Fermion Systems ◽  
Quantum Liquids ◽  
Wave Symmetry ◽  
Ferromagnetic Interactions ◽  
Ordered State

In quantum liquids, large differences are observed owing to differences in quantum statistics. The physical properties of liquid <sup>3</sup>He (Fermion) and <sup>4</sup>He (Boson) are considerably different at low temperatures. After the discovery of superconductivity in electron (i.e., Fermion) systems, a similar pairing ordered state was expected for <sup>3</sup>He. Remarkably, the observed ordered state of <sup>3</sup>He was more surprising than expected, multiple superfluid phases in the <em>T-P</em> phase diagram. The origin of the multiple phases was attributed to ferromagnetic interactions in the <em>p</em>-wave symmetry state.

scholarly journals Aesthetics and Creativity. Identity Configurations

2022 ◽  
Author(s):  
Livia Durac ◽  
Keyword(s):  
Cultural Evolution ◽  
Human Action ◽  
Two Dimensions ◽  
The Other ◽  
Mutual Understanding ◽  
State Of Mind ◽  
Human Attitude ◽  
The Aesthetic ◽  
Nature And Society ◽  
The Way

Reflecting on human attitude towards reality, together with deciphering the emotional code that accompanies it, has configured - in time – the aesthetic universe, open to human reflection, creation, and evaluation. Aesthetics appears through the way in which consciousness reacts and capitalises upon things in nature and society, or which belong to human subjectivity, including on artistic work, which have an effect on sensitiveness due to their harmony, balance and grandeur. As a fundamental attribute of the human being, creativity is the engine of cultural evolution, meaning the degree of novelty that man brings in his ideas, actions, and creations. Aesthetical values, together with the other types of values, contribute to what society represents and to what it can become, hence motivating human action and creation. Their role is to create a state of mind that encourages the cohesion, cooperation, and mutual understanding of the society. Integrating a chronological succession of the evolution of the concepts that objectify its structure, its aesthetics and creativity, this article stresses the synergetic nature of the two dimensions of human personality, paving the way to beauty, as a form of enchantment of the human spirit.

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