Search results for "unge"
showing 10 items of 1645 documents
Antarctic erosion history reconstructed by Terre Adélie moraine geochronology
2020
AbstractWe report apatite fission-track and 10Be terrestrial cosmogenic nuclide (TCN) dating of 14 moraine boulders originating from inland Terre Adélie, East Antarctica. These data show cooling of the Proterozoic Terre Adélie craton at < ~120°C between 350 and 300 Ma, suggesting > 4 km temperate glacial erosion during the Late Palaeozoic Ice Age, followed by nearly null Mesozoic erosion and low glacial erosion (< 2 km) in the Cenozoic. Based on glacial flux maps, the origin of the boulders may be located ~400 km upstream. Preliminary TCN (10Be) datings of moraine boulders cluster within the last 30 ka. Cosmogenic ages from the Lacroix Nunatak suggest a main deglaciation after the …
A multidisciplinary approach to reveal the Sicily Climate and Environment over the last 20 000 years
2010
Abstract We present a thorough review of the knowledge on the climate and environment in Sicily over the last 20 000 years, taking into account results of several studies carried using terrestrial and marine records. We obtain a coherent framework of the most important changes succeeded in the island, even if some points need further investigation. All the reconstructions of surface temperatures of the seas and the air surrounding Sicily point out severe climatic conditions during the last glacial period. The steppe- and semisteppe-like vegetation pattern testifies, together with additional evidence from geochemical data of lacustrine evidence, markedly arid conditions. Fi-nally, significan…
The gastropod fauna of the Epipalaeolithic shell midden in the Vestibulo chamber of Nerja Cave (Málaga, southern Spain)
2011
The sedimentary record of the Vestibulo, Mina and Torca chambers in the ancient entrance of Nerja Cave (Malaga, southern Spain) developed between around 30 and 3.6 ka cal BP. The long record of human occupation shows a dominance of terrestrial snails associated with the Gravettian, with a continuation of these types in the Solutrean when marine shells begin to be introduced. During the Magdalenian, marine bivalves are dominant. Marine molluscs reach a maximum during the Epipalaeolithic, giving rise to a shell midden formed primarily by Mytilus edulis and diverse species of Patella. The Epipalaeolithic shell midden occurs in Unit 4 and can be dated to the PleistoceneeHolocene boundary. This …
Late-glacial to Holocene aeolian deposition in northeastern Europe - The timing of sedimentation at the Iisaku site (NE Estonia)
2015
Abstract The Late-glacial and Holocene aeolian inland dune complex at Iisaku (NE Estonia) has been investigated using an accurate and detailed compilation of the sedimentary properties and chronological framework. The quartz grains forming the dunes are very variable, reflecting aeolian, weathering, and periglacial conditions, both prior and after deposition. Although the morphological forms and the sedimentary record point to a dune-like environment, the transport record reflects either a short transport time or/and distance, and a contribution from neighbouring sedimentary environments. Dune development in the area was strongly controlled by the formation of the Baltic Ice Lake (BIL) in f…
Transitions in European land-management regimes between 1800 and 2010
2015
Land use is a cornerstone of human civilization, but also intrinsically linked to many global sustainability challenges—from climate change to food security to the ongoing biodiversity crisis. Understanding the underlying technological, institutional and economic drivers of land-use change, and how they play out in different environmental, socio-economic and cultural contexts, is therefore important for identifying effective policies to successfully address these challenges. In this regard, much can be learned from studying long-term land-use change. We examined the evolution of European land management over the past 200 years with the aim of identifying (1) key episodes of changes in land …
The Application of Supercritical Fluids Technology to Recover Healthy Valuable Compounds from Marine and Agricultural Food Processing By-Products: A …
2021
Food by-products contain a remarkable source of bioactive molecules with many benefits for humans; therefore, their exploitation can be an excellent opportunity for the food sector. Moreover, the revalorization of these by-products to produce value-added compounds is considered pivotal for sustainable growth based on a circular economy. Traditional extraction technologies have several drawbacks mainly related to the consumption of hazardous organic solvents, and the high temperatures maintained for long extraction periods which cause the degradation of thermolabile compounds as well as a low extraction efficiency of desired compounds. In this context, supercritical fluid extraction (SFE) ha…
Exogenous Growth Regulators and Water Stress Enhance Long-Term Storage Quality Characteristics of Onion
2023
Exogenous growth regulators (GRs) play a crucial role in alleviating water stress and sustaining crop yields in water-stressed areas. However, their effects on onions post-harvest quality, particularly post-monsoon onion—often preferred for long-term storage—were never studied. Therefore, this led us to investigate the interaction between water stress and GRs on the physiochemical and functional quality attributes of onions during long-term storage (9 months, at 25 ± 1 °C and 65 ± 5% RH). Onion crop was raised under four water stress levels i.e., 1.00–0.85, 0.84–0.70, 0.69–0.40, and 0.39–0.10 IW: CPE, designated as no, low, medium, and s…
Głodowanie jako nieszczęśliwe zrządzenie losu, czyli o tym, jak chłop musiał sobie radzić na przednówku i podczas klęsk żywiołowych
2018
W życiu najuboższych warstw społecznych przez całe wieki, w zasadzie aż do XX stulecia, nieodłączną częścią egzystencji był niedobór pożywienia, który w okresie przednówka i w czasie klęsk żywiołowych i nieurodzaju przybierał na sile. Ludność – co jakiś czas dotykana przez zły los – musiała sobie radzić i do swojego menu wprowadzać takie składniki, które pozwoliłyby zaspokoić albo chociaż oszukać głód. Tekst traktuje o losie chłopskim oraz o sposobach zaspokajania głodu w obliczu niedostatku, podaje się tu przykłady tzw. głodowych potraw, których składniki często były niejadalne albo wręcz trujące.
Scientific Opinion on an application by Syngenta (EFSA-GMO-DE-2009-66) for placing on the market of herbicide tolerant and insect resistant maize Bt1…
2015
Question number: EFSA-Q-2009-00444 on request from Competent Authority of Germany; The EFSA GMO Panel previously assessed the four single events combined to produce a four-event stack maize Bt11 × MIR162 × MIR604 × GA21 and did not identify safety concerns. In this opinion, the EFSA GMO Panel assesses the four-event stack maize and all its subcombinations independently of their origin. No new data on the single events, leading to modification of the original conclusions on their safety, were identified. The molecular, agronomic, phenotypic and compositional data on the four-event stack maize did not give rise to safety concerns and there is no reason to expect interactions between the singl…
Divu lomu spēļu statistiska salīdzināšana
2020
Šis darbs apskata divas lomu spēles: Pathfinder 1st Edition, jeb 1E, un Dungeons & Dragons 5th Edition, jeb 5E. Specifiski, tika pētīts, cik atšķirīgi ir radījumi abu spēļu klāstā, lai nonāktu pie secinājuma - vai tie, un līdz ar to - arī spēles savā starpā, ir ar statistisku nozīmību atšķirīgiviens no otra, vai nē. Lai to izdarītu, tika ievākti dati no abām spēlēm - radījumu galvenie raksturlielumi un, kurnepieciešams, veikti papildus aprēķini, lai noskaidrotu to spējas un varētu tās salīdzināt abosgadījumos. Izmantotie matemātiskie salīdzināšanas rīki: T-tests, Vilkoksona tests, Kolmogorova-Smirnova tests,TOST tests; kā arī tika veiktas grafiskā analīze, kur tas bija pieļaujams: histogram…