57 research outputs found

    Barriers to the development of green economy in rural areas of selected districts of the greater Poland province

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    Purpose: The aim of the research was to analyze the implementation of the sustainable development policy, including green economy in rural areas of the Greater Poland province in the context of planning and strategic documents of Poland and the European Union. Design/Methodology/Approach: The analytical material consisted of the results of the survey interviews and the analysis of their content. In the survey, a standardized interview questionnaire was used, on the basis of which 668 computer-assisted telephone interviews (CATI) were conducted with representatives of the green economy sector in rural areas in the Greater Poland Voivodeship and 21 interviews with representatives of local government units at the level of rural and urban-rural communes. Findings: The results of the research show the mechanisms to reduce the barriers to the development of green sector in the rural areas of the Greater Poland by organising social campaigns to change the awareness and educate the public on green economy, green jobs, sustainable development and social responsibility, improving the training portfolio to focus on the green skills through practical training,vproviding incentives for the enterprises and the residents to use the eco-friendly solutions in their businesses and households, preferential treatment of the projects and investments contributing to green economy, creating green jobs and supporting the development of green sector in the Greater Poland, as part of the selection process for the projects co-financed by the European Union. Practical Implications: Recommendations resulting from the conducted research and analyzes may be used by institutions responsible for creating local and regional policies. Originality/Value: The results of the comparative analysis and the theoretical discussion in this article supplement previous research on the analysis of the major barriers to the development of green economy sector in rural areas of the Greater Poland province.peer-reviewe

    Mitochondrial physiology

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    As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery

    Mitochondrial physiology

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    As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery

    Prospects for biocontrol of Vibrio parahaemolyticus contamination in blue mussels (Mytilus edulus) – a year-long study

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    Vibrio parahaemolyticus is an environmental organism normally found in subtropical estuarine environments which can cause seafood-related human infections. Clinical disease is associated with diagnostic presence of tdh and/or trh virulence genes and identification of these genes in our preliminary isolates from retail shellfish prompted a year-long surveillance of isolates from a temperate estuary in the north of England. The microbial and environmental analysis of 117 samples of mussels, seawater or sediment showed the presence of V. parahaemolyticus from mussels (100%) at all time-points throughout the year including the colder months although they were only recovered from 94.9% of seawater and 92.3% of sediment samples. Throughout the surveillance, 96 isolates were subjected to specific PCR for virulence genes and none tested positive for either. The common understanding that consuming poorly cooked mussels only represents a risk of infection during summer vacations therefore is challenged. Further investigations with V. parahaemolyticus using RAPD-PCR cluster analysis showed a genetically diverse population. There was no distinct clustering for ‘environmental’ or 'clinical reference strains although a wide variability and heterogeneity agreed with other reports. Continued surveillance of isolates to allay public health risks are justified since geographical distribution and composition of V. parahaemolyticus varies with future ocean warming and the potential of environmental strains to acquire virulence genes from pathogenic isolates. The prospects for intervention by phage-mediated biocontrol to reduce or eradicate V. parahaemolyticus in mussels was also investigated. Bacteriophages isolated from enriched samples collected from the river Humber were assessed for their ability to inhibit the growth of V. parahaemolyticus strains in-vitro and in-vivo (with live mussels). V. parahaemolyticus were significantly reduced in-vitro, by an average of 1 log - 2 log units and in-vivo, significant reduction of the organisms in mussels occurred in 3 replicate experimental tank set ups with a ‘phage cocktail’ containing 12 different phages. Our perspective biocontrol study suggests that a cocktail of specific phages targeted against strains of V. parahaemolyticus provides good evidence in an experimental setting of the valuable potential of phage as a decontamination agent in natural or industrial mussel processing

    Neuroeducation and Nonspecific Problems in Learning Children and Adults

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    Neuroedukacja wykorzystuje techniki treningu na poziomie neuronalnym w celu skutecznej stymulacji mózgu w procesie uczenia się zarówno dzieci, jak i dorosłych, osób zdrowych i z niepełnosprawnościami. W artykule zaprezentowano własne wyniki i wnioski dwu cykli treningowych (8-letnie dziecko i 56-letni dorosły) z wykorzystaniem metod: neurofeedbacku, audioterapii, kynoterapii oraz ćwiczeń integracji międzypółkulowej. Metody te okazały się atrakcyjne dla trenujących w każdym wieku, nie wymagały od terapeuty odwoływania się do doświadczeń człowieka, zmiany jego przekonań. Efekty neurotreningu miały na celu wspieranie pracy mózgu, poprawę uwagi słuchowej, wyników uczenia się, pamięci oraz radzenie sobie w sytuacjach stresogennych.Neuroeducation uses training techniques at the neural level to effectively stimulate the brain in the learning process of both children and adults, healthy people and people with disabilities. The article presents author’s results and conclusions of the two training cycles (for an 8-year-old child and a 56-year-old adult) using the methods of: neurofeedback, audiotherapy, kynotherapy and interhemispheric integration exercises. These methods turned out to be attractive for people of all ages, they did not require a therapist to refer to human experiences, change their beliefs. The effects of neurotrening were aimed at supporting the brain work, improving auditory attention, learning outcomes, memory and coping with stressful situations

    Effect of Ground Waste Glass Addition on the Strength and Durability of Low Strength Concrete Mixes

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    By recycling used glass containers, we are able to recover and reuse their valuable properties, which is a way to preserve the relevant natural resources and lessen environmental burdens. For example, recycled waste glass (in the form of powder) can be used in the production of concrete. This article analyses the effect of waste glass addition on the properties of C12/15, which is used, for example, as concrete bedding material to support road drainage gutters and kerbs. Ground waste glass was used as a filler in the mix, i.e., without decreasing the amount of cement. Brown glass collected as municipal solid waste was used in this research. The research comprised an experiment prepared on the basis of the central composite design. The independent variables included water/cement ratio and the amount of glass powder, expressed as the glass to cement ratio by weight. The adopted research program mainly included the definition of the concrete compressive strength, water absorption and freeze–thaw resistance after 25 and 100 cycles of freezing and thawing. For selected systems, the characteristics of air voids in hardened concrete were also defined. The beneficial effect of ground waste glass added as a filler to the concrete mixture on the strength and durability of concrete was confirmed by the obtained test results

    Reclaimed asphalt – application example on the S3 expressway

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    Najczęściej stosowaną metodą dodawania granulatu asfaltowego w Polsce jest metoda na zimno, w której granulat dodawany jest bezpośrednio do mieszalnika. Krajowe wytyczne techniczne dopuszczają użycie granulatu asfaltowego w ograniczonej ilości tylko do warstw wiążących i podbudów. W artykule przedstawiono wyniki badań asfaltowego z dodatkiem granulatu asfaltowego w ilości 15% i 18%. W badaniach wykorzystano mieszanki mineralno-asfaltowe zastosowane do warstwy wiążącej i podbudowy nawierzchni drogi ekspresowej S3 w województwie zachodniopomorskim. Na podstawie wyników badań stwierdzono, że granulat asfaltowy jest cennym materiałem i może być stosowany do produkcji mieszanek mineralno-asfaltowych przeznaczonych do warstwy wiążącej i podbudowy nawierzchni obciążonej ciężkich ruchem.The most popular method of adding reclaimed asphalt pavement (RAP) in Poland is the cold method, where it is added directly to the mixer. The national technical guidelines allow usage RAP in limited amount only for binder and base courses. The article presents the research results of asphalt concrete with 15% and 18% addition of RAP. The research used asphalt mixtures used for binder and base courses of road pavement expressway S3 in the West Pomeranian Voivodeship. Based on the test results, it was found that RAP is a valuable material and can be used for the production of asphalt mixtures for binder and base courses of pavement loaded with heavy traffic

    Pavement with the addition of crumb rubber (and fibers) after 18 years of operation

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    W artykule przedstawiono ocenę stanu nawierzchni z dodatkiem gumy (i włókien), którą wykonano w 2004 roku. Do wykonania warstwy ścieralnej użyto betonu asfaltowego do bardzo cienkich warstw. Mieszankę mineralno-asfaltową modyfikowano dodatkiem granulatu gumowego metodą na sucho. Po 18 latach eksploatacji nawierzchnia jest w dobrym stanie technicznym.The article presents the results of pavement condition assessment constructed in 2004 in asphalt technology. Asphalt concrete with crumb rubber and fibres was used for a very thin wearing course layer. The bituminous mixture was modified in the dry process with crumb rubber. After 18 years of traffic operation, the pavement is still in good technical condition
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