Search results for "CHOI"

Optimal contract length for biodiversity conservation under conservation budget constraint

2014

We examine the optimal length of a contract period in a conservation program with payments for ecosystem services aiming at protecting biodiversity on privately owned forests. The government chooses the number of stands and the length of contracts so as to maximize biodiversity benefits under a binding conservation budget. We examine the implication of two alternative budgets: a separate budget for each period (periodic budget) or one budget that to be used in all periods (intertemporal budget). The impact of the budget type shows up in the fact that with intertemporal budget choice set is larger and more high quality stands are available for contracting. Based on theoretical characterizati…

A Framework to Explain the Relation Between ICT and Development: Combining Affordances and the Capability Approach

2019

Part 1: Pushing the Boundaries - New Research Methods, Theory and Philosophy in ICT4D; International audience; In this paper, we suggest a framework to better explain the relation between ICT and development. The framework combines two theories: The Capability Approach and Affordances. The capability approach defines development as freedom of choice; and the affordances explains the relational aspects of people and technology. These two theories complement each other by connecting the means (technology) to the ends (development). A case study of ICT and study-circle education in rural areas of Kenya is used to illustrate the framework. Using the framework, the study revealed how actualizati…

Impacts et effets du choix du repas sur la consommation et la représentation des patients en milieu hospitalier.

2016

International audience; Introduction et but de l’étude. L’hospitalisation survient comme étant une rupture dans la vie d’une personne. Projetée dans un environnement parfois inconnu, avec un rythme imposé par une organisation établie, les habitudes et rituels peuvent être bousculés lors de l’arrivée dans l’institution de santé. Le repas, qui représente une valeur forte dans notre société et un repère avec la vie précédant l’hospitalisation, est totalement redéfini. Il perd ses dimensions identitaire et commensale au profit des dimensions médicale et nutritionnelle. Les prises alimentaires peuvent alors diminuer, entrainer une diminution des apports énergétiques pouvant aller jusqu’à l’appar…

COMMUTING PATTERNS IN RIGA AGGLOMERATION: EVIDENCE FROM A SURVEY ANALYSIS OF YOUTH

2021

In the last ten years the evident changes of settlement patterns through suburban growth near to capital city of Latvia occurred. Increase of distance between home and routine activity places as well as changes of public transport and rapid increase of car ownership initiated significant changes in commuting patterns of inhabitants living outside of Riga. Although the commuting from suburban area to Riga is recently broadly studied, however these researches focused primarily on able-bodied population leaving behind school-age children and young people. The aim of this study is to analyse commuting patterns of young people aged 12 to 17 moving from outskirts of Riga to school located in Riga…

Integrating different levels of analysis in the study of mate choice and mating systems in vertebrates

2000

Not all sex ratios are equal : the Fisher condition, parental care and sexual selection

2017

The term ‘sex roles’ encapsulates male–female differences in mate searching, competitive traits that increase mating/fertilization opportunities, choosiness about mates and parental care. Theoretical models suggest that biased sex ratios drive the evolution of sex roles. To model sex role evolution, it is essential to note that in most sexually reproducing species (haplodiploid insects are an exception), each offspring has one father and one mother. Consequently, the total number of offspring produced by each sex is identical, so the mean number of offspring produced by individuals of each sex depends on the sex ratio (Fisher condition). Similarly, the total number of heterosexual matings …

Academia in cardiovascular radiology: are we doing enough for the future of the subspecialty?

2021

Aim To explore barriers to academic activities that cardiovascular radiology-oriented radiology trainees face worldwide. Materials and methods An international call for participation in an online survey was distributed via social media and radiological societies to radiology trainees. Questions covered barriers and involvement in academic activities during radiology training. Participants interested in cardiovascular radiology were selected for analysis with appropriate statistical methods. Results Of the 892 respondents, 120 (13.5%) reported an interest in cardiovascular imaging. The majority (63.3%, 76/120) were from Europe and 57.5% (69/120) were men. There were gender discrepancies in a…

Familiarity changes as a function of perceptual shifts.

2010

This experiment compares the yes-­no and forced recognition tests as methods of measuring familiarity. Participants faced a phase of 3 study-­test recognition trials in which they studied words using all the letters of the alphabet (overlapping condition, O), and an additional phase in which targets and lures did not share any letters (non-­overlapping condition, NO). Finally, subjects performed a forced-­choice task in which they had to choose one of two new words, each from one of the subsets (Parkin et al., 2001). Results in the NO condition higher than .50, showing their sensitivity to familiarity. When the letter set of the words for study in the third list of the NO condition was swit…

A Unified Approach to Portfolio Optimization with Linear Transaction Costs

2004

In this paper we study the continuous time optimal portfolio selection problem for an investor with a finite horizon who maximizes expected utility of terminal wealth and faces transaction costs in the capital market. It is well known that, depending on a particular structure of transaction costs, such a problem is formulated and solved within either stochastic singular control or stochastic impulse control framework. In this paper we propose a unified framework, which generalizes the contemporary approaches and is capable to deal with any problem where transaction costs are a linear/piecewise-linear function of the volume of trade. We also discuss some methods for solving numerically the p…

Organisasjonsendring i Stabæk Fotball : en kvalitativ undersøkelse av Stabæk Fotballs strategiske valg for å overleve som toppklubb

2016

Masteroppgave i idrettsvitenskap - Universitetet i Agder 2016 The purpose of this master thesis has been to locate which strategic choices Stabæk Fotball have made from 2012-2015 in order to survive as a high level football club. The study has an organizational perspective, and the changing processes of the club are analyzed by using the Pettigrew´s (1987) contextualist approach. The problem I wanted to address: Which strategic choices have Stabæk Fotball made to survive as a high level football club? This master thesis is based on a qualitative case study method. The data has been collected mainly by depth interview with five persons, and looking at the accounting of the club´s business as…