Search results for "desert"
showing 10 items of 149 documents
Il ruolo della forestazione nella mitigazione dei processi di desertificazione
2009
I fiori del deserto. Sbarbaro lichenologo
2007
Profonde sono le interconnessioni fra l'universo letterario e quello naturalistico di Sbarbaro. La curiosità per le minime esistenze vegetali è attestata dai sei inventari lichenologici dell'autore ligure, qui analizzati mediante un fitto confronto intertestuale con le fonti botaniche da lui impiegate. 'Fiore del deserto', il lichene si qualifica come il correlativo oggettivo della resistenza del poeta alla desolazione. Inoltre, la presenza in queste prose di un incedere argomentativo riconducibile all'influsso della letteratura scientifica, testimonia della complessità dell'interesse botanico del poeta, che alla mitizzazione della natura unisce l'esperienza concreta di questa realtà metamo…
Temporal analysis of normalized difference vegetation index (NDVI) and land surface temperature (LST) parameters to detect changes in the Iberian lan…
2011
In past decades, the Iberian Peninsula has been shown to have suffered vegetation changes such as desertification and reforestation. Normalized difference vegetation index (NDVI) and land surface temperature (LST) parameters, estimated from data acquired by the Advanced Very High Resolution Radiometer (AVHRR) sensor onboard the National Oceanic and Atmospheric Administration (NOAA) satellite series, are particularly adapted to assess these changes. This work presents an application of the yearly land-cover dynamics (YLCD) methodology to analyse the behaviour of the vegetation, which consists of a combined multitemporal study of the NDVI and LST parameters on a yearly basis. Throughout the 1…
Antimicrobial activity of the extracts of Terfezia claveryi and Tirmania pinoyi against gram-positive and gram-negative bacteria causal agent of dise…
2017
Tomato diseases caused by virus, bacteria and fungi have been reported worldwide and caused considerable economic losses. Among all diseases, attention is paid to those caused by bacteria. In this study, the extracts of two “desert truffles” Terfezia claveryi and Tirmania pinoyi were tested against six bacterial species, causal agent of economically important tomato diseases: Pseudomonas corrugata, P. mediterranea, P. syringae pv. tomato Pectobacterium carotovorum subsp. carotovorum, Xanthomonas vesicatoria and Clavibacter michiganensis subsp. michiganansis. The extracts from both fungal species, evaluated by agar well diffusion method, showed an antimicrobial activity against all the teste…
Sequestrati dalla vendetta: “rimanere chiusi fuori dall’oggetto”
2013
RiassuntoA partire dal loro lavoro di psicoterapeute e attraverso alcuni frammenti clinici che si riferiscono ad un gruppo di adolescenti svoltosi in un quartiere a rischio di Palermo, le Autrici analizzano la dimensione mafiosa non restringendola al solo comportamento criminale; piuttosto declinandola lungo alcuni significanti: non identità e gruppo mafioso che colonizza e sottomette lo psichismo del singolo; fantasmi familiari potenti e spietati che impediscono il costituirsi di sé originali e autonomi; personalità impastate di indifferenza emotiva e vendicatività. Significanti che rendono conto delle vaste aree di desertificazione e pietrificazione – resistenza al cambiamento – avvertita…
Obmowa, osądzanie, narzekanie czy milczenie? Rozważania Ojców Pustyni
2021
Pod koniec III wieku rozpoczyna się ruch monastyczny zainicjowany przez św. Antoniego, Powstała w ten sposób nowa forma ascezy charakteryzująca się zerwaniem ze światem, społeczeństwem: anachoreza, czyli pustelnictwo. Odtąd życie pustelników ma być pełne wyrzeczeń, na które składają się post, wstrzemięźliwość seksualna, modlitwa i praca, ale też milczenie. Wierzono bowiem, że tylko w ciszy brat otrzyma szansę na spotkanie Boga, usłyszenia Jego Słowa i tym samym wkroczy w Jego tajemnicę, a potem będzie mógł innych do tej tajemnicy doprowadzić, dzięki potędze swej miłości i pokory. Milczenie, zachowanie ciszy, powstrzymywanie się przed uwolnieniem słów były niezwykle ważnymi i częstymi temata…
Microbial bioresources for rehabilitation of natural and anthropogenic deserts
2012
Arid lands and deserts cover one fifth of the earth’s land surface and they are currently increasing due to the global warming. Besides the natural desert settings, human activities lead to the desertification of certain areas: municipal landfills and caves are the most common examples of such anthropogenic deserts. Massive pollution and lack of natural soil profiles create harsh conditions and hinder the spontaneous rehabilitation of such areas. Phytoremediation is often used for renaturalization of such degraded soils. Two case studies are presented aiming at demonstrating that the plant-microbe interactions are essential for improving the soil quality and allowing the formation of crops.…
Particle chemical properties in the vertical column based on aircraft observations in the vicinity of Cape Verde Islands
2011
During the second Saharan Mineral Dust Experiment (SAMUM-2) field campaign, particles with geometric diameters (d) between ∼0.1 and 25 μm were collected on board of the Deutsches Zentrum für Luft- und Raumfahrt (German Aerospace Center, DLR) Falcon aircraft. Size, chemical composition and mixing state of aerosols sampled (spatially and vertically resolved) along the West African coastline and in the Cape Verde Islands region were determined by electron microscopy. A pronounced layer structure of biomass-burning aerosol and desert dust was present for all days during the sampling period from 23 January to 6 February. The aerosol composition of the small particles (d < 0.5 μm) was highly v…
Complessità antropologica della nozione di confine
2004
The work pays specific attention to themes such as the desert, the limes, fortifications, populations, nomadism, peaceful or conflictual interaction between man and landscape along the borders, cultural identities, and the Roman Empire's exchanges with peoples located beyond the Sahara limes
Obmowa, osądzanie, narzekanie czy milczenie? Rozważania Ojców Pustyni
2021
Pod koniec III wieku rozpoczyna się ruch monastyczny zainicjowany przez św. Antoniego. Powstała w ten sposób nowa forma ascezy charakteryzująca się zerwaniem ze światem, społeczeństwem (anachoreza, czyli pustelnictwo). Odtąd życie pustelników ma być pełne wyrzeczeń, na które składają się post, wstrzemięźliwość seksualna, modlitwa i praca, ale też milczenie. Wierzono bowiem, że tylko w ciszy brat otrzyma szansę spotkania z Bogiem, że usłyszy Jego Słowa i tym samym wkroczy w Jego tajemnicę, a potem będzie mógł innych do tej tajemnicy doprowadzić dzięki potędze miłości i pokory. Milczenie, zachowanie ciszy, powstrzymywanie się przed uwolnieniem słów były niezwykle ważnymi i częstymi tematami p…