Search results for "source"

Determination of Changes in the Quality of Surface Water in the River—Reservoir System

2021

Assessing the changing parameters of water quality at different points in the river–reservoir system can help prevent river pollution and implement remedial policies. It is also crucial in modeling water resources. Multivariate statistical analysis is useful for the analysis of changes in surface water quality. It helps to identify indicators that may be responsible for the eutrophication process of a reservoir. Additionally, the analysis of the water quality profile and the water quality index (WQI) is useful in assessing water pollution. These tools can support and verify the results of a multivariate statistical analysis. In this study, changes in water quality parameters of the Turawa r…

Multilevel Governance for Climate Change Adaptation in Food Supply Chains

2019

The vulnerability of food supply chains to climate change is higher compared to other industries due to its dependency on climatic conditions, temperature and water supply. As a robust response to the vulnerability of food supply chains, it is essential to find ways of linking the concepts of sustainable development, climate change adaptation and risk governance into one paradigm. The risk governance of food supply chains is conducted by and across both private and public spheres. Hence, in this chapter, we introduce a dual system of governance to match the objectives of climate change adaptation, and discuss the multiplicity and potential integration of both corporate-led private governanc…

Association of emotional intelligence with resilience and work engagement in sports coaches

2021

Problem statement. Sports coaching is recognized as a stressful and challenging profession due to several different aspects such as organizational, performance, contextual, interpersonal, and intrapersonal stressors that coaches face. High level of work stress is a risk factor for decreased well-being at work. Sports coaches’ wellbeing not only matters to coaches themselves but plays a significant role in athlete performance and well-being as well. Approach. There is research evidence on sports coaches’ stress and burnout. There is, however, little knowledge on personal resources that enhance sports coach’s well-being at work. Therefore, studies that examine personal resource factors that f…

Optimal Resource Allocation in Multi-Hop Networks: Contention vs. Scheduling

2014

CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) is actually the most used method in ad-hoc networks for transmitting on a contending medium, even if it shows poor performance in presence of hidden nodes. To increase performance, we propose an algorithm that combines CSMA and TDMA (Time Division Multiple Access) approaches. The adopted solution consists of grouping contending nodes in non-interfering subsets and granting a different numbers of time slots to different groups, while using the CSMA to manage medium access among nodes belonging to the same subset. An optimization procedure to assign the time slots to each subset of nodes and to find an equilibrium between contention …

Lake size and fish diversity determine resource use and trophic position of a top predator in high-latitude lakes

2015

Prey preference of top predators and energy flow across habitat boundaries are of fundamental importance for structure and function of aquatic and terrestrial ecosystems, as they may have strong effects on production, species diversity, and food-web stability. In lakes, littoral and pelagic food-web compartments are typically coupled and controlled by generalist fish top predators. However, the extent and determinants of such coupling remains a topical area of ecological research and is largely unknown in oligotrophic high-latitude lakes. We analyzed food-web structure and resource use by a generalist top predator, the Arctic charr Salvelinus alpinus (L.), in 17 oligotrophic subarctic lakes…

The variable position of Arctic charr (Salvelinus alpinus (L.)) in subarctic lake food webs

2013

GREEN LOGISTICS – A DIFFERENT AND SUSTAINABLE BUSINESS GROWTH MODEL

2014

Built on the concepts of green logistics and green supply chain management (GrSCM), this paper presents the relationship between logistical activities and its related environmental effects and costs. By greening their supply chain, companies can better use their assets, optimize resources- do more with less, improve and create sustainable technology, ensure continuity and strategic, long-term alliances. Business ethics and social responsibility are important components of organisational effectiveness. Most companies recognize that socially responsible activities improve their image among consumers, stakeholders, the financial community and other relevant publics. They have found that enviro…

Source code of the dissertation "Open sourcing Digital Heritage : digital surrogates, museums and knowledge management in age of open networks"

2012

Sisältää väitöskirjan lähdeaineistot.

Switching spatial scale reveals dominance-dependent social foraging tactics in a wild primate

2017

When foraging in a social group, individuals are faced with the choice of sampling their environment directly or exploiting the discoveries of others. The evolutionary dynamics of this trade-off have been explored mathematically through the producer-scrounger game, which has highlighted socially exploitative behaviours as a major potential cost of group living. However, our understanding of the tight interplay that can exist between social dominance and scrounging behaviour is limited. To date, only two theoretical studies have explored this relationship systematically, demonstrating that because scrounging requires joining a competitor at a resource, it should become exclusive to high-rank…

Social innovation in a post-conflict setting : examining external factors affecting social service NGOs

2021

While the study of the influence of external environmental factors on non-governmental organizations (NGOs) is well explored in the international development literature, the importance of these factors on NGOs’ transformative roles in a post-conflict development setting remains less understood. Nevertheless, external environmental factors could have a crucial impact on NGOs in such a context, especially when NGOs want to integrate a socially innovative approach into the social services they provide. Using survey data of staff members of social service NGOs from post-conflict Bosnia and Herzegovina (N = 120) and applying resource dependence theory, this study identifies three environmental f…