Search results for "older"

Validation of an explicative model of the successful aging process with psychological, physical, relational, and leisure variables

2015

Increasingly, research on the aging process tends to adopt a dual perspective emic (specific to a culture) and etic (universal), requiring further studies to address this cross-cultural approach. The aim is to obtain an empirical answer to the question of whether a model of successful aging raised from a different context such as the Taiwanese context, is suitable to represent this process in our elders. The sample consisted of 737 elderly. Socio-demographic-data and different scales to assess life satisfaction, leisure, health, and social support were collected. A structural equation model taken from Lee et al. (2011), in which leisure, health and social support predicted life satisfaction…

Temperature dependence of the magnetic Casimir-Polder interaction

2009

We analyze the magnetic dipole contribution to atom-surface dispersion forces. Unlike its electrical counterpart, it involves small transition frequencies that are comparable to thermal energy scales. A significant temperature dependence is found near surfaces with a nonzero DC conductivity, leading to a strong suppression of the dispersion force at T > 0. We use thermal response theory for the surface material and discuss both normal metals and superconductors. The asymptotes of the free energy of interaction and of the entropy are calculated analytically over a large range of distances. Near a superconductor, the onset of dissipation at the phase transition strongly changes the interac…

Trapping cold atoms using surface-grown carbon nanotubes

2008

We present a feasibility study for loading cold atomic clouds into magnetic traps created by single-wall carbon nanotubes grown directly onto dielectric surfaces. We show that atoms may be captured for experimentally sustainable nanotube currents, generating trapped clouds whose densities and lifetimes are sufficient to enable detection by simple imaging methods. This opens the way for a different type of conductor to be used in atomchips, enabling atom trapping at submicron distances, with implications for both fundamental studies and for technological applications.

Dynamical Casimir-Polder interaction between a chiral molecule and a surface

2016

We develop a dynamical approach to study the Casimir-Polder force between a initially bare molecule and a magnetodielectric body at finite temperature. Switching on the interaction between the molecule and the field at a particular time, we study the resulting temporal evolution of the Casimir-Polder interaction. The dynamical self-dressing of the molecule and its population-induced dynamics are accounted for and discussed. In particular, we find that the Casimir-Polder force between a chiral molecule and a perfect mirror oscillates in time with a frequency related to the molecular transition frequency, and converges to the static result for large times.

Dispersive interactions between atoms and nonplanar surfaces

2009

We calculate the dispersive force between a ground state atom and a non planar surface. We present explicit results for a corrugated surface, derived from the scattering approach at first order in the corrugation amplitude. A variety of analytical results are derived in different limiting cases, including the van der Waals and Casimir-Polder regimes. We compute numerically the exact first-order dispersive potential for arbitrary separation distances and corrugation wavelengths, for a Rubidium atom on top of a silicon or gold corrugated surface. We discuss in detail the inadequacy of the proximity force approximation, and present a simple but adequate approximation for computing the potentia…

Sustainability in executive remuneration : A missing link towards more sustainable firms?

2021

This paper contributes by showing simultaneously the interlinked challenges of sustainability-based (based on long-term economic, social and environmental targets) executive remuneration and the problems of transparency in remuneration reporting. Our empirical data, analyzed using qualitative content analysis, consists of the published remuneration statements and sustainability reports of 43 Finnish companies reporting according to the Global Reporting Initiative (GRI) framework. Our results indicate that comprehensive sustainability remuneration is still rare in Finnish large companies: long-term financial targets are implemented at most companies, but social or environmental targets were …

Nautical tourism sustainability in Sardinia: a stakeholder segmentation

2012

Stakeholders' involvement in establishing sustainable business models

2020

PurposeCooperatives play a dominant role in the European dairy sector. The aim of the study is to define a sustainable business model of dairy cooperatives and explore how stakeholders can contribute to innovation processes generated in this ecosystem.Design/methodology/approachStarting from theoretical assumption and investigation of three major cooperatives located in an ecological agricultural Poland region, known also as “Green Lungs of Poland,” the authors propose a sustainable business model where the role stakeholders in the value co-creation is emphasized.FindingsThe findings of this paper show how the involvement of various stakeholders by the cooperatives contributes to the develo…

Backcasting for desirable futures in Finnish forest-based firms

2020

Purpose In Finland, new forest-based sector (FBS) businesses are seen as important for the transition to the circular bioeconomy. The purpose of this study is to explore the transition of Finnish FBS companies to new business models. The aim is to understand how FBS companies define their ideal future states and related business models for the year 2030. Design/methodology/approach This study uses thematic interviews with managers from various FBS firms and companies from interfacing sectors. In the interviews, the key idea of backcasting was pursued when respondents discussed the desirable future states of their business. Findings The effort to achieve growth of the business and the appea…

Raising Awareness on SDGs. A Multi-Stakeholder Approach

2020

Over the past few decades we have witnessed an increasing importance given to sustainable development and to the need of integrating it in our lives. United Nations was one of the first leading authorities to take action, and it has been constantly working on finding ways to draw attention upon sustainable development. Adopting the 2030 Agenda as of 2015 is proof of it and its 17 Sustainable Development Goals (SDGs) through the 169 targets stand a bold challenge ahead all countries. Due to their complexity, the SDGs require a multi-faceted approach, and in ensuring their implementation, multiple stakeholders at multiple levels and from multiple sectors need to participate. Therefore, this p…