Search results for "Planet"
showing 10 items of 5662 documents
Modernities in the Americas: from the avant-gardes to nowadays
2018
Revisiting today the question of modernity in literature, in the arts, in society and politics means using the plural. And choosing the plural means not restricting the scope to the multivocal, but often ambiguous, notion of modernism. Often enrolled to designate a cultural imagination of modernity, the term is under duress when it comes to accounting for divergent ways of apprehending the relationship to time, history and culture. “Modernity is not a movement like dada or like imagism. If li...
Modernidades en las Américas: de las vanguardias a la actualidad
2018
Replantear hoy en día la cuestión de la modernidad —literaria, artística, social o política— equivale a emplear la palabra en plural. Esta decisión supone no limitarse al término polisémico, y a menudo ambiguo, de modernismo. Este último, que con frecuencia se invoca para designar el imaginario cultural de la modernidad, apenas sirve para dar cuenta de las diferencias que se manifiestan en la manera de concebir la relación con el tiempo, la historia y la cultura. «La modernidad no es un movim...
As modernidades nas Américas: desde as vanguardas até hoje
2018
Atualmente, repensar a questao da modernidade – literaria, artistica, social ou politica – significa empregar a palavra no plural. Essa escolha implica em nao nos limitarmos ao termo plurivoco, e, muitas vezes ambiguo, de modernismo. Esse ultimo, frequentemente convocado para designar o imaginario cultural da modernidade, tem dificuldade em dar conta das diferencas que se manifestam na forma de pensar a relacao com o tempo, a historia e a cultura. “A modernidade nao e um movimento, como o Dad...
Dlaczego bowaryzm?
2018
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High-resolution orthophoto map and digital surface models of the largest Argentine Islands (the Antarctic) from unmanned aerial vehicle photogrammetry
2020
This study presents the first high-resolution orthophoto maps and digital surface models (DSMs) of the largest Argentine Islands, West Antarctica. Aerial surveys with small unmanned aerial vehicle (UAV) were performed in Austral summer, 2018, taking 10,041 aerial photographs. Accuracy requirements were ensured using ground control points (GCPs). A resolution of 3.4 and 6.8 cm/px of orthomosaics and DSMs is reached on average, and the RMS reprojection error is 0.22 m on average. We report the morphometric parameters of surveyed islands and discuss issues related to accuracy and the usage of UAVs in polar conditions. This study demonstrates that small and low cost UAVs can be successfully use…
Geomorphology and surface geology of Mount St. Helens volcano
2020
Mount St. Helens is a stratovolcano of the Cascadia volcanic arc well known worldwide for its volcanic collapse and eruption in 1980, which caused considerable destruction and changed the geomorphology of the volcano and of a considerable portion of its surroundings. This paper presents a geomorphology and surface-geology map of both the wider Mount St. Helens, Washington (USA), at the 1:50,000 scale, and of its crater, at the 1:25,000 scale. The map is obtained from the interpretation of two high-resolution, air-borne acquired, digital terrain models, LiDAR dataset, combined with Google Earth imaging, geological information and field surveys. The geomorphology of the area is largely domina…
Geomorphology of the urban area of Palermo (Italy)
2020
The results of a geomorphological study carried out in the urban area of Palermo are summarized in a thematic map. Field survey, analysis of aerial photographs and topographic maps, consultation of historical documents and maps, stratigraphic and topographic reconstruction from numerous wells and subsoil data, and bibliographic search were performed, in order to display the geomorphological changes produced by man over time in a densely populated area and to define the Anthropocene of the study area. Palermo town rises along large marine terrace surfaces cut by small river valleys and bordered by wide degraded and abandoned coastal cliffs. Over the last 2700 years, this area was affected by…
A siliciclastic shallow-marine turbidite on the carbonate shelf of the Ordovician Baltoscandian palaeobasin
2019
A metre-scale thick siltstone–sandstone lobe is described within the Dapingian outer ramp argillaceous limestone facies of the Baltoscandian palaeobasin. This bed is referred to as the Volkhov Oil Collector in previous studies due to its hydrocarbon accumulation potential. It formed on the palaeoslope of the regional Jelgava Depression, which represents an elongated axial region of the deepest part of the Ordovician Baltoscandian sedimentary basin. Sedimentological and petrological analysis of this siliciclastic bed in core sections shows that it was deposited as a result of a single event of turbidite flow. The internal structure of the turbidite bed follows the classical Bouma divisions o…
Method for Reproducible Shipboard Segmented Flow Analysis Ammonium Measurement Using an In-House Reference Material for Quality Control
2021
Ammonium is a fundamental nutrient for phytoplankton growth in seawater and is a key component of the microbial loop. Ammonium measured in parallel with other nutrients is crucial in understanding the small temporal scale changes in oceanographic ecology. Despite the importance of measuring ammonium at sea, owing to its lability, there is no consensus on the best method. The lack of availability of certified reference materials for ammonium in seawater also makes it difficult to assess the accuracy and reproducibility of ammonium measurements. In this study we present a modified segmented flow analysis method using ortho-phthaldialdehyde (OPA) with fluorescence detection to measure ammonium…
Formazione Service e-Learning: esperienza media-educativa
2023
The use of technology is an interesting device, which constitutes a useful self-training approach, related to an experience, from which to extract significant materials and traces of their personal learning. In Italy, Service Learning (SL) projects that use digital media in the university environment are still rare and therefore there are not many data and research results related to the introduction of SL in the training of future teachers. On the contrary, at the international level we find a vast scientific literature on SL and its applications, also in the academic field. Service e-Learning (Se-L) can in fact represent an essential approach for university education, which allows student…