2,307 research outputs found
Exploring the Expectations of Transport Professionals Concerning the Future Automobility System: Visions, challenges and transitions
A mixture of potentially significant changes in technology, commercial structures and social practices are currently entering the automobility system. These changes have the potential to combine together and lead to a substantial shift in the manner in which society fuels, owns and makes use of its cars. This paper reports a research project which made use of focus groups to examine the narratives of British transport professionals concerning forthcoming developments in the automobility system. Specific attention was given to what the expectations for future change in automobility are, if these changes will likely lead to a transition towards a more sustainable system and the manner in which a transition of this nature could be facilitated. The oral testimony offered during the focus groups has been assessed qualitatively using thematic analysis. The results suggest that there is a commonly held view that the automobility system is entering a stage of flux which may lead to considerable changes in system configuration. However, the attainment of a sustainable transition for the system will likely be inhibited by a series of institutional, societal and physical barriers which may restrict system developments
Developing an index of vulnerability to motor fuel price increases in England
As the outlook for oil prices remains uncertain, this paper develops a method to assess which areas of England would be most vulnerable to future motor fuel price increases. Building on previous research, we define and operationalise three dimensions of vulnerability: exposure (the cost burden of motor fuel), sensitivity (income) and adaptive capacity (accessibility with modes alternative to the car). We exploit unique data sets available in England, including the âMOTâ vehicle inspection data and DfT Accessibility Statistics. This allows us to map vulnerability to fuel price increases at a spatially disaggregated level (Lower-layer Super Output Areas), taking into account motor-fuel expenditure for all travel purposes, and the ability of households to shift to other modes of travel. This is an advancement on the âoil vulnerabilityâ indices developed in previous international research
Reaching and Teaching Millennials: Designing the Future of Student Services
Today\u27s students have come to expect library services that are quite different from their predecessors and law librarians must evolve to meet their needs. As law libraries in the United States face the realities of declining enrolment and decreasing budgets, it is imperative that we find new and creative ways to build positive relationships with our students while also preparing them for the realities of practicing law in an environment driven by rapid technological change. Three law librarians from the United States, Brian Detweiler, Kimberly Mattioli, and Mike Martinez, Jr., discuss their successes and failures in reaching out to their student populations, creating and evaluating various student-centred instructional programmes, and in establishing a strategic plan to meet the needs of millennial law students
Repetitive proteins from the flagellar cytoskeleton of African trypanosomes are diagnostically useful antigens
Trypanosome infection of mammalian hosts leads, within days, to a strong early response against a small, distinct number of parasite proteins. One of these proteins is the variable surface glycoprotein (VSG). Most of the others are apparently non-variable, intracellular trypanosome proteins. Two of these antigens I2 and I17 are now characterized at the molecular level. Both exhibit a highly repetitive amino acid sequence organization, but they show no sequence similarity either to each other or to any other proteins known to date. Preliminary serological analyses indicate that both allow the early, sensitive and specific detection of infections with different species of trypanosomatids, making them interesting candidates for the development of diagnostic tools for trypanosomiasis detectio
Repetitive proteins from the flagellar cytoskeleton of African trypanosomes are diagnostically useful antigens
Trypanosome infection of mammalian hosts leads, within days, to a strong early response against a small, distinct number of parasite proteins. One of these proteins is the variable surface glycoprotein (VSG). Most of the others are apparently non-variable, intracellular trypanosome proteins. Two of these antigens I2 and I17 are now characterized at the molecular level. Both exhibit a highly repetitive amino acid sequence organization, but they show no sequence similarity either to each other or to any other proteins known to date. Preliminary serological analyses indicate that both allow the early, sensitive and specific detection of infections with different species of trypanosomatids, making them interesting candidates for the development of diagnostic tools for trypanosomiasis detection
Dissecting the supramolecular dispersion of fullerenes by proteins/peptides: Amino acid ranking and driving forces for binding to c60
Molecular dynamics simulations were used to quantitatively investigate the interactions between the twenty proteinogenic amino acids and C60. The conserved amino acid backbone gave a constant energetic interaction ~5.4 kcal molâ1, while the contribution to the binding due to the amino acid side chains was found to be up to ~5 kcal molâ1 for tryptophan but lower, to a point where it was slightly destabilizing, for glutamic acid. The effects of the interplay between van der Waals, hydrophobic, and polar solvation interactions on the various aspects of the binding of the amino acids, which were grouped as aromatic, charged, polar and hydrophobic, are discussed. Although ÏâÏ interactions were dominant, surfactantâlike and hydrophobic effects were also observed. In the molecular dynamics simulations, the interacting residues displayed a tendency to visit configura-tions (i.e., regions of the Ramachandran plot) that were absent when C60 was not present. The amino acid backbone assumed a âtepeeâlikeâ geometrical structure to maximize interactions with the fullerene cage. Wellâdefined conformations of the most interactive amino acids (Trp, Arg, Met) side chains were identified upon C60 binding
Evaluation of Nile tilapia in monoculture and polyculture with giant freshwater prawn in biofloc technology system and in recirculation aquaculture system.
Abstract: Biofloc technology system (BFT), recirculation aquaculture system (RAS) and polyculture promote efficient use of water, area and nutrient recycling, which are essential practices for sustainable aquaculture development. The aim of this study was to evaluate the growth, feed efficiency, biofloc composition and water quality of Nile tilapia Oreochromis niloticus (Linnaeus, 1758) in monoculture and polyculture with giant freshwater prawn Macrobrachium rosenbergii (De Man, 1906) in BFT and RAS, over a period of 30 days. Fish (n = 128; 7.29 +/- 0.67 g) were distributed randomly in 16 experimental tanks (8 fish/tank). Prawn (n = 96; 0.50 +/- 0.09 g) were allocated in 8 experimental tanks (12 prawn/tank) in a polyculture. The experimental design was completely randomized with four treatments with four replicates each, in a factorial design 2 x 2 (BFT and RAS vs. monoculture and polyculture). The experimental diet (28% of digestible protein; 3100 kcal kg(-1) of digestible energy) was used both to fish and prawn in BFT and RAS. There was significant effect (p < 0.01) of the system and the culture for weight gain, apparent feed conversion and protein efficiency ratio. The average weight gain and apparent feed conversion of tilapia in monoculture (30.04 g and 1.39) and in polyculture (36.44 g and 1.27) were superior (p < 0.01) in BFT than in monoculture (23.64 g and 1.74) and in polyculture (24.14 g and 1.61) in RAS. Weight gain and survival of giant freshwater prawn was superior (p < 0.01) in BFT (0.43 g and 87%) compared to RAS (0.26 g and 79%). The data showed that BFT provides better growth performance responses in monoculture for Nile tilapia and in polyculture with giant freshwater prawn compared to RAS
Anthropology, financial expansion and its relationalities from âmarginal sitesâ: An introduction
In this introduction we map the tradition of thoughts and state of the art on the study of finance and financialization in relation to the anthropological Italian debate. We suggest a particular attention towards ethnographic approaches âfrom the marginsâ of finance that can help build a non unilinear and west-centric agenda for studying financial expansion also in the Italian context. Then we discuss conceptual trends on financial expansion that emerged in the international anthropological debate after the Global Financial Crisis (GFC), underlining a shift from the âdouble movementâ analysis to the rediscovery and the reframing of relational approach. Thinking of financialization beyond the dualistic interpretative prism that sets finance against society, movement against counter movement, center against periphery we invite to conceptualize financial expansion as the result of a variety of independent but related processes which must be apprehended holistically. We consider ethnography as an opportunity to unravel the multiple spatial and temporal axes and kinds of processes that constitute financial expansion. When analyzed ethnographically, financialization seems to proceed by simultaneous movements and countermovement resulting from the confrontation among increasingly financialized subjects. This interactive practice produces attempts that, despite the power asymmetries, might result in unplanned transformative outcomes
Acoustic effects at prehistoric landscapes: an archaeoacoustics analysis of rock art sites from Western Mediterranean
Many pre-state societies around the world give special importance to places where distinctive
acoustic effects are generated. These places often receive special treatment including the production
of rock paintings in them. In the Western Mediterranean, it seems that outstanding acoustic effects
such as directional echoes, augmented audibility and long reverberation time are present in some rock
art areas with Neolithic depictions made between the 7th and 4th millennia BC. These have been painted
in different styles that have been given the name of Macroschematic, Levantine and Schematic rock
art styles. On the basis of the results of our acoustic tests, we argue that there is a strong probability
of acoustics having been used as a method by Neolithic artists to select the shelters in which to produce
rock art. This paper presents the results of the ongoing ARTSOUNDSCAPES ERC Project on
archaeoacoustics. This project seeks to explore the role of sound in the creation and use of rock art
sites. he authors discuss the results of previous fieldwork in three countries (Spain, France and Italy)
and the development of an innovative set of research methods that include 3D Ambisonic recordings,
GIS soundshed analysis, and Transmission Loss measurements
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