Results 71 to 80 of about 55,553 (186)

Lifecycle deficit and economic support ratio in Nigeria: The national transfer account approach

open access: yesJournal of Economics and Management
Aim/purpose – The benefit of changing the population age structure only accrues to an economy if the labor market absorbs the increasing number of the working population at a given labor income that surpasses the prevailing consumption of that age group.
Onisanwa Idowu Daniel, Yohanna Sule
doaj   +1 more source

Life tables estimation for pension system actuarial projection model with insufficient data: case of Republic of Srpska

open access: yesCroatian Review of Economic, Business and Social Statistics, 2019
This article provides an upgraded model for actuarial projection of the dependency ratio of the pension fund in the Republic of Srpska. The nonexistence of complete upto-date life tables presents a huge problem of the pension system and life insurance ...
Bošnjak Nikolina, Prorok Vesna
doaj   +1 more source

Damage Characteristics and Parameter Sensitivity of Fracture Caverns Under Pneumatic Disturbances

open access: yesEnergy Science &Engineering, Volume 13, Issue 9, Page 4387-4401, September 2025.
ABSTRACT In the construction process of abandoned mine compressed air energy storage projects, the presence and distribution of fractures within the rock mass significantly influence both the design and safe operation of the energy storage system. To investigate how initial fractures affect rock mass damage under pressure disturbances, a coupled model ...
Run Hu   +4 more
wiley   +1 more source

Linking Phase Transitions and Quantum Entanglement at Arbitrary Temperature

open access: yes, 2018
In this work, we establish a general theory of phase transitions and quantum entanglement in the equilibrium state at arbitrary temperatures. First, we derived a set of universal functional relations between the matrix elements of two-body reduced ...
Wei, Bo-Bo
core   +1 more source

High tin or high lead: distinctive alloying practices of the pastoral Yuhuangmiao culture in Northeast China during the first millennium BCE

open access: yesArchaeometry, Volume 67, Issue 4, Page 1040-1056, August 2025.
Abstract The Jundushan cemetery, located on the northern boundary of the present‐day Beijing, sits at a crucial nexus between the Yan and Taihang mountains linking northern and central China. This strategic location provides an interesting case for examining interactions between pastoralism and agriculture around the early half of the first millennium ...
Wenxun Ren   +7 more
wiley   +1 more source

The impact of brain drain on economic growth: A comparative analysis of Pre- and Post-outbreak of Covid-19 periods

open access: yesSustainable Futures
This study explores the impact of brain drain on income growth and compares its effects between the pre- and post-outbreak of Covid-19 periods based on unbalanced panel data for 60 countries covering the period 1995–2022.
Han-Sol Lee   +2 more
doaj   +1 more source

Two-Loop Bhabha Scattering in QED

open access: yes, 2005
In the context of pure QED, we obtain analytic expressions for the contributions to the Bhabha scattering differential cross section at order alpha^4 which originate from the interference of two-loop photonic vertices with tree-level diagrams and from ...
A. B. Arbuzov   +17 more
core   +2 more sources

Immunotherapy using pullulan‐conjugated Der f 2 allergen in canine atopic dermatitis: An anti‐inflammatory agent‐sparing approach

open access: yesVeterinary Dermatology, Volume 36, Issue 4, Page 443-452, August 2025.
Background – Allergen immunotherapy is used as aetiological treatment for canine atopic dermatitis (cAD). Objective – To assess the anti‐inflammatory agent‐sparing effect over 1 year of immunotherapy using pullulan‐conjugated recombinant Der f 2 (rDf2‐P). Conclusions and Clinical Relevance – Der f 2‐P immunotherapy can lead to a rapid reduction in anti‐
Masahiko Nagata   +7 more
wiley   +1 more source

Thermodynamics of pseudospin-electron model in mean field approximation

open access: yes, 2002
The mean field type approach based on the self-consistent consideration of an effective field created by electron transfer is developed for a description of thermodynamics of the Hubbard type models with an infinitely large on-site repulsion.
Murray, Nye, Reuss, Voigt, Wern, Wern
core   +2 more sources

Housing Needs of Older People in Poland as Exemplified by the Warsaw, Poznań and Szczeciń Urban Areas

open access: yesReal Estate Management and Valuation, 2019
Due to an ageing population, local governments are facing new challenges in the field of addressing the housing needs of older people. Seniors are not a homogeneous group; three basic categories may be distinguished in terms of independence level and the
Iwański Rafał   +2 more
doaj   +1 more source

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