ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
The objective of this research was to study the formation of water-in-oil microdispersions due to crude oil-brine interactions as a novel mechanism that improves oil recovery with low salinity waterflooding in carbonate formations. This novel interpretation was studied by intergrating petrographic and ...
Many deepwater gas fields remain stranded in the current economic environment. Conventional surface solutions result in large facilities that are heavy and costly. Subsea solutions are challenged when confronted with long distance tie-backs. While the FLNG option initially looked promising, high CAPEX ...
ABSTRACT Fish cages in the open sea are exposed to cycle wave loads during their service life, and thus the fatigue reliability of mooring chains should be re-assessed to ensure the safety status. A numerical model was adopted to calculate the tension force of mooring chains. A nonlinear contact finite ...
Controlling and quantifying the presence of Posidonia Oceanica (P.O.) in the Mediterranean sea is crucial for the conservation of these endemic ecosystems and to underscore the negative impact of many anthropogenic activities. These activities, which include uncontrolled leisure anchoring or illegal ...
Vehicular Ad hoc Network (VANET) is an emerging technology with some unique characteristics that makes it different from other ad-hoc networks. VANETs could be a key networking technology of the future vehicle communications, where the communication is possible between V2V, V2I and other hybrid architectures. ...
Ethnic groups are universal and unique to human societies. Such groups sometimes have norms of behavior that are adaptively linked to their social and ecological circumstances, and ethnic boundaries may function to protect that variation from erosion by interethnic interaction. However, such interaction ...
The preen gland produces oily secretion, which smeared onto a bird’s plumage improves its maintenance. The main components of the secretion are waxes, and its composition often changes during the year. The aim of this study was to determine the differences in the chemical composition of preen waxes ...
Germ line segregation can occur during embryogenesis or after embryogenesis completion, with multipotent cells able to give rise to both germ and somatic cells in the developing juvenile or even in adulthood. These undifferentiated cells, in some animals, are self-renewing stem cells. In all these cell ...
Philosophy of technology (phil-tech), relatively new to the North American philosophical scene in the seventies, emerged from its largely European roots under a somewhat dark cloud of technophobic colors. The godfathers, Martin Heidegger, Jacques Ellul, and Herbert Marcuse as the most popular, portrayed ...
Hunting and gathering is, evolutionarily, the defining subsistence strategy of our species. Studying how children learn foraging skills can, therefore, provide us with key data to test theories about the evolution of human life history, cognition, and social behavior. Modern foragers, with their vast ...
Folding of mammalian genomes into spatial domains is critical for gene regulation. The insulator protein CTCF and cohesin control domain location by folding domains into loop structures, which are widely thought to be stable. Combining genomic and biochemical approaches we show that CTCF and cohesin ...
There is a tension between the conception of cognition as a central nervous system (CNS) process and a view of cognition as extending towards the body or the contiguous environment. The centralised conception requires large or complex nervous systems to cope with complex environments. Conversely, the ...
The present longitudinal study aimed to investigate the development of word decoding skills during incremental phonics instruction in Dutch as a transparent orthography. A representative sample of 973 Dutch children in the first grade (Mage = 6;1, SD = 0;5) was exposed to incremental subsets of Dutch ...
Cyanide toxicity and their environmental impact are well known. Nevertheless, they are still used in the mining, galvanic and chemical industries. As a result of industrial activities, cyanides are released in various forms to all elements of the environment. In a natural environment, cyanide exists ...
The use of stone tools by macaques in Thailand has reduced the size and population density of coastal shellfish; previously it was thought that tool-assisted overharvesting effects resulted uniquely from human activity.
Many metaheuristic algorithms have been proposed to solve combinatorial and numerical optimization problems. Most optimization problems have high dependence, meaning that variables are strongly dependent on one another. If a method were to attempt to optimize each variable independently, its performance ...
Body size reduction is predicted to be one of the most common ecological responses to climate change, yet examples within some taxonomic groups, such as marine molluscs, are rare. Here, we document a significant reduction in shell size of the rocky shore gastropod Nucella lapillus across the southern ...
Herring-eating killer whales debilitate herring with underwater tail slaps and likely herd herring into tighter schools using a feeding-specific low-frequency pulsed call (‘herding’ call). Feeding on herring may be dependent upon daylight, as the whales use their white underside to help herd herring; ...
Information on nonbreeding waterbirds using created wetlands in the Central Appalachian region of the United States is limited. We compared waterbird communities of two managed wetlands, created in 2013 and 2001, in West Virginia. We observed 27 species of waterbirds. Species richness and diversity ...
Gulls were assessed as sentinels of contamination in the coastal zone of the Southern Baltic, research material being obtained from dead birds collected on Polish beaches and near fishing ports in 2009–2012. In feathers and blood of four gull species: herring gull (Larus argentatus), common gull (Larus ...