Search results for "Nature"
showing 10 items of 1564 documents
Agroecological potential and prospects of alternative use of natural feed resources for bioenergetics
2018
Produkcja biomasy dla biogazu, paliw stałych i ciekłych jest ważna w szerokim zakresie zastosowań niekonwencjonalnych źródeł energii. Jednakże produkcja i wykorzystanie biomasy do celów energetycznych również wymaga kosztów finansowych i prowadzi do zmian w strukturze obszarów upraw w produkcji rolnej. Czynniki te powodują wzrost cen produktów rolnych. Zmiana klimatu i wysokie koszty zasobów mineralnych przyczyniają się do poszukiwania i rozwoju nowych sposobów pozyskiwania zasobów energetycznych. Badania nad produkcją biomasy z użytków zielonych w celach energetycznych są w Europie istotne i priorytetowe, a ich wyniki mają ogromną wartość praktyczną. Dlatego konieczne jest rozwiązanie prob…
Encyklopedyczna wykładnia symboliki orła w twórczości Mikołaja Reja i Marcina Bielskiego
2018
Tematem artykułu jest symbolika orła rozpatrywana na tle dawnej tradycji encyklopedycznej. Zestawienie erudycyjnych treści z zakresu historii naturalnej z fragmentami dzieł Mikołaja Reja i Marcina Bielskiego przynosi interesujące spostrzeżenia. Powszechnie wiadomo, że uniwersalny charakter symboliki orła jako emblematu władzy w kulturze staropolskiej zajmował wyjątkowe miejsce w heraldycznym zwierzyńcu. Jednakże, alegoryczne wykładnie związane z motywem tego królewskiego ptaka w utworach naszych pisarzy okazują się wykraczać poza tradycyjnie przyjęte interpretacje. Wydaje się bowiem, że symbol orła w poetyckim ujęciu Reja i Bielskiego stanowił przede wszystkim emblemat ptaka niebieskiego, c…
Proton-irradiated breast cells: molecular points of view
2019
Abstract Breast cancer (BC) is the most common cancer in women, highly heterogeneous at both the clinical and molecular level. Radiation therapy (RT) represents an efficient modality to treat localized tumor in BC care, although the choice of a unique treatment plan for all BC patients, including RT, may not be the best option. Technological advances in RT are evolving with the use of charged particle beams (i.e. protons) which, due to a more localized delivery of the radiation dose, reduce the dose administered to the heart compared with conventional RT. However, few data regarding proton-induced molecular changes are currently available. The aim of this study was to investigate and descri…
Farmland abandonment in Europe: Identification of drivers and indicators, and development of a composite indicator of risk
2015
Accounting for more than half of the European Union's (EU) territory, agriculture ensures food production, manages important natural resources and supports socio-economic development of rural areas. Moreover, it is estimated that 50% of all plant and animal species (including some of that are listed in the EU Habitat Directive) depend on agricultural practices. The continuation of appropriate agricultural land management is essential to ensure these primary functions. Avoidance of farmland abandonment is therefore an important rationale for the EU's Common Agricultural Policy which requires improved knowledge of this phenomenon at the European level. This study assesses the risk of farmland…
Eco-efficiency assessment of olive farms in Andalusia
2012
Abstract Olive farming represents an important source of income and employment in the rural areas of Andalusia (Spain), which is the most important olive oil-producing region in the world. Unfortunately, it also exerts significant environmental pressures with regard to soil erosion, use of polluting inputs, excessive water consumption and biodiversity reduction. This paper uses Data Envelopment Analysis (DEA) techniques and pressure distance functions to contribute a farm-level assessment of the eco-efficiency of a sample of 292 Andalusian olive farmers. We distinguish between managerial eco-efficiency and program eco-efficiency, the latter being associated to the different natural conditio…
Connectedness and connectivity of the Natura 2000 network of protected areas across country borders in the European Union
2012
Abstract We studied the spatial connectedness of Natura 2000 site boundaries and the functional connectivity of the Natura 2000 network across the 34 terrestrial borders of the European Union. Connectivity was measured by the dispersal success of 192 reptile, amphibian, invertebrate and plant species from Annex II of the European Union Habitats Directive, based on the presence of same species on both sides of the borders. Connectedness and connectivity varied greatly between state borders, with good and bad examples found in all parts of the European Union. Connectedness and connectivity were positively correlated. However, a few outlying examples showed that good connectedness is not neces…
Perinnemaiseman hoito keino suojella luontoa
2018
"Not So Ridiculous" : Avicenna on the Existence of Nature (tabi'a) contra Aristotle and the Ash'arites
2019
In this paper, I set out to explicate what I take to be a distinctive argument that Avicenna offers for the existence of nature (ṭabī ͑a) as a causal power (quwwa) in bodies (ajsām). In doing this, I first clarify the philosophical and historical context of the argument, showing that its two main targets were the Aristotelian tradition on the hand and the Ash ͑arite theological (kalām) tradition on the other. With regards to the Aristotelian tradition, which took the existence of nature as a given, I show that the shaykh departs from it in this regard for at least two reasons. The first has to do with a certain feature of how Avicenna conceptualized, consistent with the Aristotelian traditi…
L'analogia physis-techne in Aristotele (Fisica B, 3-9) e la teoria interventistica della causalità
2015
Ho diviso la lettura dei capitoli 3-9 del libro B della Fisica di Aristotele in due momenti: nei capitoli 3-7 viene data la definizione delle quattro cause e si pone il problema se caso e fortuna sono cause del divenire, nei capitoli 8-9 si risolve tale aporia in senso teleologico e si traggono le conclusioni sulla relazione physis-techne. La concezione interventistica della causalità sostiene che c’è uno stretto legame fra causalità e intervento umano in natura: l’idea di una relazione causale fra due eventi (uno che causa e l’altro che è causato) ha come presupposto il concetto di azione intenzionale e nasce dalla riflessione dell’uomo sul proprio operare finalizzato nella realtà. Sebbene…
The Role of Wastewater in Controlling Fluvial Erosion Processes on Clayey Bedrock
2023
In recent decades, fluvial erosion processes in highly anthropized areas are mainly associated with in-stream gravel mining activities or with the presence of artificial reservoirs which have increased the erosive capacity of the river as a consequence of the reduced sediment transport or the modification of the longitudinal profile of the channel. On the other hand, the role of pollutants in the degradation processes of soils with a predominantly clayey component is little known. The present study, through chemical analyses of water and mineralogical–geotechnical analyses of clayey soil samples taken along some river channels in central Italy in correspondence with water treatment pl…