Search results for "itens"

Autonomous Operation of Stationary Battery Energy Storage Systems—Optimal Storage Design and Economic Potential

2021

Global warming requires a changeover from fossil fuel based to renewable energy sources on the electrical supply side and electrification of the demand side. Due to the transient nature of renewables and fluctuating demand, buffer capacities are necessary to compensate for supply/demand imbalances. Battery energy storage systems are promising. However, the initial costs are high. Repurposing electric vehicle batteries can reduce initial costs. Further, storage design optimization could significantly improve costs. Therefore, a battery control algorithm was developed, and a simulation study was performed to identify the optimal storage design and its economic potential. The algorithm used is…

The relationship of dental students’ characteristics to social support, psychosocial factors, lifestyle, and quality of life

2022

To examine the relationships between sociodemographic characteristics, student academic information, social support, sense of coherence, anxiety, lifestyle, and quality of life among dental students.A cross-sectional study among 233 dental students in Brazil. We captured data on sociodemographic and socioeconomic characteristics, social support through Social Support Appraisal, psychosocial factors (sense of coherence and anxiety based on SOC-13 and Depression, Anxiety and Stress Scale-21 - anxiety subscale, respectively), lifestyle as per individual Lifestyle Profile and quality of life based on VERAS-Q. Data was analysed through Structural Equation Modelling.Greater social support, higher…

Beyond budgeting since inception: what is the status?

2017

Master's thesis Business Administration BE501 - University of Agder 2017 The Beyond Budgeting idea as developed by Hope and Fraser (1997) has been in existence for almost twenty years, yet, the research community still has divergent views on whether the concept is a better management accounting tool for organizations’ management control system or not. Also, whether it has received attention in research community like other management accounting tools such as Traditional Budgeting and Balanced Scorecard. On this notion, this study is developed to investigate the status of the research discourse on the concept to gain relevant knowledge. Inspired by Scapens and Bromwich (2001) and built on Ac…

Søskenpar i toppidretten : Er det prestasjonsfremmende å være søskenpar på elitenivå i skiskyting?

2017

Masteroppgave idrettsvitenskap ME517 - Universitetet i Agder 2017 The purpose of this study was to acquire more knowledge of whether the sibling relationship can increase the chances of success in elite sport. The sample consists of two pairs of siblings where all four are former elite athletes in Biathlon and has achieved international titles at senior level. All four has been part of the national elite team of Norwegian Biathlon Association for several years. The collection of information done using qualitative research, and the interviews has taken part individually using an in-depth, semi-structured approach. Data from the interviews where analysed trough a phenomenological approach. St…

Utenfor og innenfor : En kvalitativ studie av skolen som sosial arena – og dens betydning for ungdoms psykiske helse

2017

Masteroppgave psykisk helsearbeid ME504 - Universitetet i Agder 2017 Background Exclusion still have good conditions in school today. In this study, mental health and quality of life are seen in relation to school as a social arena and from the youth's perspective. Aim and research question I want to contribute to creating opportunities for new practices in school, in the way they work with mental health and quality of life. Research question: What importance has school as a social arena, when youth who have sought mental health care and the people in the network describe the difficulties - and change for the better? Method The study has a hermeneutical phenomenological approach. The main m…

"Uten gruppa vet jeg ikke hvor jeg hadde vært ... " : brukerevaluering av et tverretatlig tiltak for sedelighetsdømte i Kristiansand

2005

Home range and excursive post-breeding movements of Eurasian Eagle-owls revealed by GPS satellite transmitters

2021

Investigating space use of wild birds provides important knowledge of bird behavior and ecology, which is crucial in the management and conservation of threatened species. In the present study, we used GPS satellite telemetry to investigate space use and movements of seven adult Eurasian Eagle-Owls (Bubo bubo) in Norway during breeding and post-breeding seasons. Breeding adults had a mean home range size of 42.9 km2 (SD ± 35.1 km2; 95% kernel density estimation Had hoc), and five individuals performed long (>20 km) excursive movements away from their breeding territories during autumn. Such wide-ranging behavior has not previously been reported for adults of the nominate subspecies B. b. bu…

Noise-induced behavioral change driven by transient chaos

2022

We study behavioral change in the context of a stochastic, non-linear consumption model with preference adjusting, interdependent agents. Changes in long-run consumption behavior are modelled as noise induced transitions between coexisting attractors. A particular case of multistability is considered: two fixed points, whose immediate basins have smooth boundaries, coexist with a periodic attractor, with a fractal immediate basin boundary. If a trajectory leaves an immediate basin, it enters a set of complexly intertwined basins for which final state uncertainty prevails. The standard approach to predicting transition events rooted in the stochastic sensitivity function technique due to Mil…

Stochastic sensitivity of bull and bear states

2021

We study the price dynamics generated by a stochastic version of a Day–Huang type asset market model with heterogenous, interacting market participants. To facilitate the analysis, we introduce a methodology that allows us to assess the consequences of changes in uncertainty on the dynamics of an asset price process close to stable equilibria. In particular, we focus on noise-induced transitions between bull and bear states of the market under additive as well as parametric noise. Our results are obtained by combining the stochastic sensitivity function (SSF) approach, a mixture of analytical and numerical techniques, due to Mil’shtein and Ryashko (1995) with concepts and techniques from th…

On relationship types, their strength, and reward crowdfunding backer behavior

2023

ispartof: JOURNAL OF BUSINESS RESEARCH vol:154 status: published