Search results for " ecosistema"
showing 10 items of 18 documents
Ongoing Evolution in the Genus Crocus: Diversity of Flowering Strategies on the Way to Hysteranthy
2021
[EN] Species of the genus Crocus are found over a wide range of climatic areas. In natural habitats, these geophytes diverge in the flowering strategies. This variability was assessed by analyzing the flowering traits of the Spanish collection of wild crocuses, preserved in the Bank of Plant Germplasm of Cuenca. Plants of the seven Spanish species were analyzed both in their natural environments (58 native populations) and in common garden experiments (112 accessions). Differences among species observed in the native habitats were maintained under uniform environmental conditions, suggesting a genetic basis for flowering mechanisms. Two eco-morphological types, autumn- and spring-flowering …
A Tool to Assess Architectural Education from the Sustainable Development Perspective and the Students' Viewpoint
2021
[EN] Architectural education plays a fundamental role in achieving sustainable development by training future professionals who can contribute to sustainability through their practice. Nevertheless, to ensure the introduction of sustainable development in the education of future architects, it is fundamental to understand what is being done and what could be improved. Despite this, a big gap has been detected in the assessment of architectural education in Spain and worldwide. Thus, a close-ended questionnaire for students has been designed based on the outcomes from a literature review, exploratory interviews with specialists, and the qualitative analysis of two schools of architecture. Ad…
Le strategie di diversificazione ispirate dall’ecosistema imprenditoriale di appartenenza delle imprese familiari
2019
ll capitolo indaga il ruolo che l’ecosistema imprenditoriale di appartenenza delle imprese familiari può avere nell’identificazione delle opportunità connesse alla realizzazione delle strategie di diversificazione. Ciò al fine di pervenireall’individuazione di eventuali comportamenti specificidi tali imprese nel campo considerato. In particolare, alla luce dei driver specifici sottesi alle decisioni strategiche delle imprese familiari e del ruolo svolto dal contesto nel quale hanno origine le opportunità imprenditoriali nel supportare od ostacolare la propria identificazione, l’autrice si occupa di studiare gli specifici processi di identificazione – sia attraverso la scoperta accidentale s…
Effect of Chitin Whiskers on the Molecular Dynamics of Carrageenan-Based Nanocomposites
2019
[EN] Films of carrageenan (KC) and glycerol (g) with different contents of chitin nanowhiskers (CHW) were prepared by a solution casting process. The molecular dynamics of pure carrageenan (KC), carrageenan/glycerol (KCg) and KCg with different quantities of CHWs as a filler was studied using dielectric relaxation spectroscopy. The analysis of the CHW effect on the molecular mobility at the glass transition, T-g, indicates that non-attractive intermolecular interactions between KCg and CHW occur. The fragility index increased upon CHW incorporation, due to a reduction in the polymer chains mobility produced by the CHW confinement of the KCg network. The apparent activation energy associated…
Processi, politiche e strumenti di pianificazione nel quadro dell’Urban Metabolism Approach.
2013
I diversi flussi del processo metabolico urbano dimostrano la stretta relazione sistemica tra città considerata come sistema economico e come ecosistema: un legame tra bilancio finanziario/flussi economici da un lato e bilancio energetico/flussi di materia, energia e servizi dall’altro. Nella ricerca, partendo dall’approccio olistico degli studi sul metabolismo urbano, e attraverso i due casi studio dei quartieri di Hammarbj Sjöstad a Stoccolma e Hafen City ad Amburgo, si è evidenziato come questi hanno un ruolo importante nella determinazione di processi, politiche e strumenti di pianificazione relativi alla nascita di nuovi quartieri ecosostenibili a partire dalla costruzione di nuovi ind…
Gli OGM nell’ecosistema
2007
OGM: effetti sulla biodiversità e sulle catene trofiche.
2007
A comprehensive RNA-Seq-based gene expression atlas of the summer squash (Cucurbita pepo) provides insights into fruit morphology and ripening mechan…
2021
[EN] Background Summer squash (Cucurbita pepo: Cucurbitaceae) are a popular horticultural crop for which there is insufficient genomic and transcriptomic information. Gene expression atlases are crucial for the identification of genes expressed in different tissues at various plant developmental stages. Here, we present the first comprehensive gene expression atlas for a summer squash cultivar, including transcripts obtained from seeds, shoots, leaf stem, young and developed leaves, male and female flowers, fruits of seven developmental stages, as well as primary and lateral roots. Results In total, 27,868 genes and 2352 novel transcripts were annotated from these 16 tissues, with over 18,0…
Brewer's spent grains as biofuels in combustion-based energy recovery processes: Evaluation of thermo-oxidative decomposition
2022
[EN] The high global generation of wastes and side streams from agri-food production has led to environmental impact and causes nature degradation due to their uncontrolled management. These wastes are profitable materials with significant economic value that could otherwise be exploited as new sources in the feed industry or the production of bioenergy. Among them, brewer¿s spent grain (BSG) is a solid by-product generated in the beerbrewing process that consists of the barley grain husks together with parts of the pericarp and seed coat layer. Although it is rich in fibres and proteins, its main use is currently limited to animal feed or simply deposition to landfills. This study pursues …
Connecting the data landscape of long-term ecological studies: the SPI-Birds data hub
2021
The integration and synthesis of the data in different areas of science is drastically slowed and hindered by a lack of standards and networking programmes. Long-term studies of individually marked animals are not an exception. These studies are especially important as instrumental for understanding evolutionary and eco-logical processes in the wild. Furthermore, their number and global distribution provides a unique opportunity to assess the generality of patterns and to address broad-scale global issues (e.g. climate change).