scholarly journals Exact isovector pairing in a shell-model framework: Role of proton-neutron correlations in isobaric analog states

2019 ◽  
Vol 100 (6) ◽  
Author(s):  
M. E. Miora ◽  
K. D. Launey ◽  
D. Kekejian ◽  
F. Pan ◽  
J. P. Draayer
Keyword(s):  
Shell Model ◽  
Model Framework ◽  
Isobaric Analog

scholarly journals A closer look at intergroup threat within the dual process model framework: The mediating role of moral foundations

2017 ◽  
Vol 10 (1) ◽  
pp. 167-177 ◽  
Author(s):  
Márton Hadarics ◽  
Anna Kende
Keyword(s):  
Process Model ◽  
Social Dominance Orientation ◽  
Dual Process ◽  
Moral Foundations ◽  
Right Wing ◽  
Model Framework ◽  
Intergroup Threat ◽  
Right Wing Authoritarianism ◽  
Mediating Role

In our study we investigated how right-wing authoritarianism (RWA) and social dominance orientation (SDO) are related to perceived intergroup threat, and also tested the potential mediating role of individualizing and binding moral foundations within this relationship pattern. According to our results, both RWA and SDO enhanced the perceived threat related to immigration. Furthermore, the effect of SDO was partly mediated by individualizing moral foundations, while the effect of RWA was partly mediated by both kinds of moral foundations. It seems that perceived intergroup threat, at least to some extent, is influenced by personal moral preferences that can be derived from individual dispositions and motivations.

scholarly journals Role of tensor force in light nuclei with tensor-optimized shell model

2014 ◽  
Vol 569 ◽  
pp. 012065
Author(s):  
T Myo ◽  
A Umeya ◽  
K Horii ◽  
H Toki ◽  
K Ikeda
Keyword(s):  
Shell Model ◽  
Tensor Force ◽  
Light Nuclei

Role of economic reforms on dismantling barriers to inter-state migration in India

2021 ◽  
Vol 18 (3) ◽  
pp. 297-304
Author(s):  
Sunetra Ghatak ◽  
Debajit Jha
Keyword(s):  
Capita Income ◽  
Economic Reforms ◽  
Per Capita Income ◽  
Model Framework ◽  
The Common ◽  
Per Capita ◽  
Linguistic Divide ◽  
The Impact ◽  
Inter State

Traditionally inter-state migration in India was limited compared to within state migration. Economic reforms in the early 1990s have boosted inter-state migration in the country. Hence, it is important to understand the impact of economic reforms on the determinants of inter-state migration. Recent studies have identified that state border; linguistic divide and per capita income play an important role in determining the location of inter-state migration in India. In this paper, we tried to understand the impact of economic reforms on the choice of the location of inter-state migration in the country by using a gravity model framework. We found that while the impact of per capita income difference has increased in the post-reform period, the impact of the common-border has declined. Moreover, the impact of the linguistic divide has initially increased after reforms.

scholarly journals The Role of Political Risk and Financial Development Factors on Sukuk Market Development of Gulf Cooperation Council (GCC) Countries

2018 ◽  
Vol 10 (1) ◽  
pp. 242
Author(s):  
Arafat Mansoor Al-raeai ◽  
Zairy Zainol ◽  
Ahmad Khilmy Abdul Rahim
Keyword(s):  
Financial Markets ◽  
Financial Market ◽  
Financial Management ◽  
Political Risk ◽  
Gulf Cooperation Council ◽  
Market Development ◽  
Model Framework ◽  
Alternative Source ◽  
Gcc Countries

The literature related to the financial management acknowledges the significant role that political risk play to determine the financial market development. Further, financial system development (banking and financial markets) competes to provide long-term financing, and this competition might be positive or negative for each other. The aim of this paper is to propose a conceptual model/framework for investigating the role of political risk and financial market on Sukuk market development in Gulf Cooperation Council (GCC). GCC economies depend heavily on oil revenues which makes them subject to oil prices fluctuations. Therefore, GCC’s governments should diversify their economies by looking for Sukuk as an alternative source of financing, to cover their budget deficit, when the price of oil decreases, and reduce their reliance on oil, because Sukuk has advantages compared to the conventional bond particularly in terms of less information asymmetry. The prior studies have mostly focused on firms' characteristics determinants of Sukuk issuances but gave a little consideration to the role of country' characteristics on Sukuk market development. This paper proposes a framework to explain the political risk and financial markets determinants of Sukuk market development with a focus on the GCC countries that have the largest region in terms of the Islamic financial assets. It is anticipated that the outcome will support policymakers to improve the current state of Sukuk market.

How Effective Is Resource Stabilization Fund in a Mono-product Economy?

2018 ◽  
Vol 19 (4) ◽  
pp. 842-858 ◽  
Author(s):  
Olusegun Felix Ayadi ◽  
Ladelle M. Hyman ◽  
Johnnie Williams ◽  
Bettye Desselle
Keyword(s):  
Government Spending ◽  
Positive Impact ◽  
Government Expenditure ◽  
Model Framework ◽  
Fiscal Management ◽  
Crude Oil Prices ◽  
Boom And Bust ◽  
Fiscal Balance ◽  
The Government

In managing a mono-product economy, the Nigerian government expenditure patterns follow revenue patterns in cycles of boom and bust in crude oil prices. Thus, fiscal policy becomes procyclical, which is an indicator of poor fiscal management. To arrest this situation, the government established a stabilization fund in 2004. The objective of this article is to provide a better understanding of the role of a stabilization fund in the fiscal management of the Nigerian economy. This is done using an econometric model framework that explains both government spending and fiscal balance as a share of GDP while controlling for a set of economic and demographic variables. The results indicate that the establishment of a stabilization fund has no moderating effect on government spending behaviour. Moreover, the evidence shows that the stabilization fund has a positive impact on fiscal balance during the sample period.

ROLE OF DEFORMED SYMPLECTIC CONFIGURATIONS in AB INITIO NO-CORE SHELL MODEL RESULTS

2008 ◽  
Author(s):  
T. DYTRYCH ◽  
K. D. SVIRATCHEVA ◽  
C. BAHRI ◽  
J. P. DAAYER ◽  
J. P. VARY
Keyword(s):  
Ab Initio ◽  
Shell Model ◽  
Core Shell

scholarly journals Role of Sea Surface Salinity Feedback in MJO Predictability: A Study with CFSv2

2019 ◽  
Vol 32 (18) ◽  
pp. 5745-5759 ◽  
Author(s):  
Jieshun Zhu ◽  
Arun Kumar
Keyword(s):  
Sea Surface Salinity ◽  
Initial Attempt ◽  
Surface Salinity ◽  
Model Framework ◽  
Ocean Stratification ◽  
Tropical Oceans ◽  
Benchmark Experiment ◽  
Intraseasonal Variations ◽  
Perfect Model

Abstract While previous studies suggested that salinity could feed back onto MJO variability via modulating upper ocean stratification and further on SST, there is no direct evidence yet proving (or disproving) the importance of this feedback in MJO evolution and its predictability. This study is an initial attempt to quantify the role of SSS feedback on MJO predictability, based on a “perfect model” framework with the CFSv2. Specifically, the SSS feedback is isolated by nudging model SSS to climatological states during forecasts. For comparison, two more experiments were done, one as a benchmark experiment by estimating MJO predictability in CFSv2 and another one for estimating the role of SST feedback. Analyses of these experiments indicate that SSS feedback exerts negligible influences on MJO predictability within the constraints of the model, in contrast to significant impacts from SST feedback. Further analysis showed that a lack of SSS influence in MJO predictability can be attributed to marginal changes in SST associated with the SSS nudging. However, there is a caveat to the conclusion about SSS feedback. Because the barrier layer (BL) acts as a “bridge” for possible SSS influences on SST over the tropical Indian and western Pacific oceans, its simulation in CFSv2 is further explored. Analyses indicate that, in spite of realistic simulations of the MJO and intraseasonal SSS variability in CFSv2, significant BL simulation biases are present in the tropical oceans, including too thin a climatological thickness, too small intraseasonal variations, and an unrealistic intraseasonal BL–SST relationship. Thus, our predictability experiments cannot reject the hypothesis that SSS does play a role in MJO predictability; it is possible that biases in CFSv2 influence its ability to capture such signals.

scholarly journals First signs of collectivity in N = 86 and 88 isotones above 132Sn

2018 ◽  
Vol 193 ◽  
pp. 01005 ◽  
Author(s):  
Houda NAÏDJA ◽  
Frédéric NOWACKI
Keyword(s):  
Field Theory ◽  
Shell Model ◽  
Effective Field Theory ◽  
Effective Interaction ◽  
Effective Field ◽  
Model Framework

Within the shell-model framework the low-lying states energies, E2 and M1 transitions of chains of nuclei 52 ≤ Z ≤ 60 with 82 ≤ N ≤ 88 are investigated. We use the N3LOP effective interaction derived from Effective Field Theory Potentials and phenomenologically constrained. We noticed clear collective features in N = 86 and 88 isotones, with signature of triaxial γ-bands.

scholarly journals Role of the tensor force in light nuclei with the tensor-optimized shell model

2013 ◽  
Vol 436 ◽  
pp. 012029 ◽  
Author(s):  
T Myo ◽  
A Umeya ◽  
H Toki ◽  
K Ikeda
Keyword(s):  
Shell Model ◽  
Tensor Force ◽  
Light Nuclei

scholarly journals Simulating the influence of snow surface processes on soil moisture dynamics and streamflow generation in an alpine catchment

2017 ◽  
Vol 21 (8) ◽  
pp. 4053-4071 ◽  
Author(s):  
Nander Wever ◽  
Francesco Comola ◽  
Mathias Bavay ◽  
Michael Lehning
Keyword(s):  
Soil Moisture ◽  
Snow Cover ◽  
Soil Water ◽  
Water Flux ◽  
Response Model ◽  
Hydrologic Response ◽  
Model Framework ◽  
Flood Risks ◽  
Soil Water Flux

Abstract. The assessment of flood risks in alpine, snow-covered catchments requires an understanding of the linkage between the snow cover, soil and discharge in the stream network. Here, we apply the comprehensive, distributed model Alpine3D to investigate the role of soil moisture in the predisposition of the Dischma catchment in Switzerland to high flows from rainfall and snowmelt. The recently updated soil module of the physics-based multilayer snow cover model SNOWPACK, which solves the surface energy and mass balance in Alpine3D, is verified against soil moisture measurements at seven sites and various depths inside and in close proximity to the Dischma catchment. Measurements and simulations in such terrain are difficult and consequently, soil moisture was simulated with varying degrees of success. Differences between simulated and measured soil moisture mainly arise from an overestimation of soil freezing and an absence of a groundwater description in the Alpine3D model. Both were found to have an influence in the soil moisture measurements. Using the Alpine3D simulation as the surface scheme for a spatially explicit hydrologic response model using a travel time distribution approach for interflow and baseflow, streamflow simulations were performed for the discharge from the catchment. The streamflow simulations provided a closer agreement with observed streamflow when driving the hydrologic response model with soil water fluxes at 30 cm depth in the Alpine3D model. Performance decreased when using the 2 cm soil water flux, thereby mostly ignoring soil processes. This illustrates that the role of soil moisture is important to take into account when understanding the relationship between both snowpack runoff and rainfall and catchment discharge in high alpine terrain. However, using the soil water flux at 60 cm depth to drive the hydrologic response model also decreased its performance, indicating that an optimal soil depth to include in surface simulations exists and that the runoff dynamics are controlled by only a shallow soil layer. Runoff coefficients (i.e. ratio of rainfall over discharge) based on measurements for high rainfall and snowmelt events were found to be dependent on the simulated initial soil moisture state at the onset of an event, further illustrating the important role of soil moisture for the hydrological processes in the catchment. The runoff coefficients using simulated discharge were found to reproduce this dependency, which shows that the Alpine3D model framework can be successfully applied to assess the predisposition of the catchment to flood risks from both snowmelt and rainfall events.

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