Search results for " Resource"

Economic feasibility study for intensive and extensive wastewater treatment considering greenhouse gases emissions

2013

Economic feasibility assessments represent a key issue for selecting which wastewater treatment processes should be implemented. The few applications that exist focus on the positive economic value of externalities, overlooking the existence of negative externalities. However, wastewater treatment plants (WWTPs) consume a significant amount of energy, contributing to climate change. In this context, as a pioneering approach, greenhouse gas emissions (GHG) have been incorporated as a negative externality of wastewater treatment. Within this framework, this study aims to compare the economic feasibility of five technologies, both intensive and extensive, for small communities. The results sho…

A survey to evaluate safety in protected crops in western Sicily

2017

Protected crops in the Mediterranean area has reached advanced production systems, but they should solve environmental, energy and money problems. The greenhouse, in fact, is a system characterized by high energy inputs with a reduced environmental sustainability compared to extensive farming and intensive open field. In Sicily, the area dedicated to annual greenhouse cultivation is 8,200 ha with a total number of farms greater than 6,000; although the sector is of great importance in the Sicilian economy, issues as workplace, food and environmental safety are often overlooked. A survey was carried out with the aim of identifying the possibilities to improve environmental, work and food saf…

Groundwater resources assessment of the Sicilian region, Italy

2007

Laufbahnförderung durch ein Unterstützungsnetzwerk:

2003

Zusammenfassung. Die Netzwerkkonzeption des Mentoring postuliert, dass eine gelungene berufliche Karriere auch für die möglich ist, die keinen Mentor finden. Das Kennzeichnende von Mentor-Protegé-Beziehungen ist die Bündelung von unterstützenden psychosozialen und karriereförderlichen Aspekten in einer einzelnen zwischenmenschlichen Beziehung. Psychosoziale und karriereförderliche Unterstützung kann jedoch auch durch unterschiedliche Personen gewährt werden. Entscheidend, so die These, sei nicht die Quelle, sondern die Summe der Laufbahnunterstützung, die eine Person insgesamt erfährt. An der Studie beteiligten sich 237 berufstätige Personen. Es zeigte sich, dass Personen mit Mentoren in B…

Successive alkalinity producing system for the treatment of acid sulphate soil runoff: preliminary results of a field trial

2005

A successive alkalinity producing system (SAPS) has been investigated as a potential passive treatment option for acid, metal containing runoff from acid sulphate soil. A pilot-scale system was installed at an agricultural land site in Rintala embankment area in mid-western Finland. The experimental layout consists of three parallel treatment units: two different SAPS cells and one limestone-filled cell for comparison of performance. The SAPS cells are composed of a bottom layer of limestone and a top layer of compost supplemented with sand. One of the SAPS cells contains sulphate-rich, waste gypsum mixed with the compost layer in order to enhance the metal reduction by sulphate reducing-ba…

Does leader–member exchange buffer or intensify detrimental reactions to psychological contract breach? The role of employees' career orientation

2018

There is an ongoing debate about two contradictory moderating effects of leader–member exchange (LMX) on the relationship between psychological contract breach (PCB) and work outcomes. Whereas some studies demonstrated LMX to be a social support resource capable of buffering the negative effects of PCB, findings from other research suggest that employees show stronger negative reactions to PCB when the quality of relationships with leaders is high. The present study addresses how these contradictory results can be explained by individuals' career orientations. We surveyed a representative random sample of 954 employees from various organizations and occupations to test whether employees wit…

Survey On Competence and Administration of Supervisory Board Activities in German Stock-Listed Companies

2017

Abstract According to the agency theory (Jensen & Meckling 1976), it is expected that there exists a positive relationship between corporate governance and company performance which is also generally assumed in recent research (Dignam & Galanis 2016). This relationship is investigated in the study performed by the author of this paper. Two different approaches were chosen in parallel: (1) quantitative data analysis, based on financial figures and corporate governance variables, and (2) a survey of supervisory board members of listed German companies. This paper is about the results of structured interviews with 30 supervisory board members. The survey confirms that corporate governa…

Using GIS for management of conflicts in natural protected area in Cindrel mountains

2021

This study reflects the possibility of using the GIS technology for the management and resolution of conflicts between stakeholders in the management of protected natural areas that cover large surfaces, such as Natura 2000 sites. The research is accomplished in Frumoasa site from Cindrel Mountains, where a conflict of a legal nature was analysed, in the extinguishment of which the technology of geographical information systems was used. In this sense, the presence of the species and habitats that are found on the surface of the incriminated forest was analysed and the comparison with the list of species and habitats that was the basis for declaring the surface as a nature 2000 site. In the…

Handover and Uplink Power Control Performance in the 3.84 Mcps TDD mode of UTRA Network

2003

In this article we consider the performance of the 3.84 Mcps time-division duplex (TDD) mode of UTRA (Universal Terrestrial Radio Access) network. We emphasize two of the radio resource management algorithms, handover and uplink power control, whose role in the overall system performance is studied extensively. First, a handover algorithm used in WCDMA (Wideband Code Division Multiple Access) standard is considered in a TDD-mode operation. This gives rise to a careful setting of different handover parameters, and the evaluation of the effects to the system performance. Secondly, the specified uplink power control algorithm is considered. Since it is based on several user-made measurements w…

The human side of leadership: exploring the relationship between servant leadership, organisational facilitators and happiness at work

2018

Although human resource management (HRM) research has established a significant relationship between leadership styles and different attitudinal outcomes, few studies have considered the important role of organisational facilitators as a more proximal outcome of servant leadership to explain happiness at work (HAW). This paper explores the relationships between servant leadership, organisational facilitators and HAW, based on the leader-member exchange (LMX) and job-demands resources (JD-R) theories. Individual-level analyses from a sample of 189 machine operators revealed that organisational facilitators fully mediate the relationship between servant leadership and HAW. The discussion revi…