1,163 research outputs found
Low-cost road marking measures for increasing safety in horizontal curves: A driving simulator study
No full textStatistics show that horizontal curves, especially those of radii less than 200 m, present an increased road ac-cident risk mainly due to inappropriate speed and failure to maintain proper lateral position. This simulator study aims to analyse how two low-cost road marking measures (red median and horizontal warning signs), alone or combined with a vertical warning sign, affect driver behaviour (driving speed, lateral movement, ac-celeration/deceleration) before and throughout dangerous horizontal curves on a two-way rural road. With GIS-supported mapping of traffic accidents, we identified the most dangerous curves on the main rural road in Croatia and replicated them on the driving simulator. Based on the driving runs of 43 participants, the study concluded that both measures, used either alone or combined with a vertical warning sign, significantly reduced the speed compared to the control condition (vertical warning sign alone). Additionally, the use of a red median prompted the lateral movement of the vehicle closer to the edge line. The paper also defines the potential use of the measures for dealing with specific types of curve-related accidents.This research was a part of the project entitled: "Understanding the impact of traffic signalling on the driver behaviour" and funded by a Unity Through Knowledge Fund "Gaining Experience Grant".Babic, D (corresponding author), Univ Zagreb, Fac Transport & Traff Sci, Zagreb, Croatia.
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Agency, participation and youth inequalities
No full textClark Z. Agency, participation and youth inequalities. In: Hart CS, Biggeri M, Babic B, eds. Agency and participation in childhood and youth. London: Bloomsbury; 2014: 83-100
Modelling the Surface Roughness of Steel after Laser hardening by using 2D Visibility Network, Convolutional neural Networks and Genetic Programming
No full textThe surface characterization of materials after Robot Laser Hardening (RLH) is a technically demanding procedure. RLH is commonly used to harden parts, especially when subject to wear. By changing their surface properties, this treatment can offer several benefits such as lower costs for additional machining, no use of cooling agents or chemicals, high flexibility, local hardening, minimal deformation, high accuracy, and automated and integrated process in the production process. However, the surface roughness strongly depends on the heat treatment and parameters used in the process. This article used a network theory approach (i.e., the visibility network in 2D space) to analyze the surface roughness of tool steel EN100083-1 upon RLH. Specifically, two intelligent methods were merged in this investigation. Firstly, a genetic algorithm was applied to derive a relationship between the parameters of the robot laser cell and topological surface properties. Furthermore, convolutional neural networks allowed the assessment of surface roughness based on 2D photographic image
Soziale Arbeit und das gute Leben - Capabilities als sozialpädagogische Kategorie
No full textZiegler H. Soziale Arbeit und das gute Leben - Capabilities als sozialpädagogische Kategorie. In: Sedmak C, Babic B, Bauer R, Posch C, eds. Der Capability - Approach in sozialwissenschaftlichen Kontexten - Überlegungen zur Anschlussfähigkeit eines entwicklungspolitischen Konzepts. 1st ed. Wiesbaden: VS Verlag; 2011: 117-137
The Physical education in primary school in Italy. From the programs to the national guidelines and Physical education teacher training (PETE)
No full textIt presents the evolution of ministerial documents regarding physical education and physical activity in primary school, by the Program of 1955 to the National Guidelines of 2012. They break down the epistemological foundations arising from the reading of documents, from the name of the discipline to content
Improving intangible assets through project management in transition countries
No full textIn recent years many challenges have been faced in project management, mainly connected to the arguably decreasing of tangible resources (financial and kinds) and to the increasing relevance of intangible assets in structure and process managerial topics.
To this purpose the paper discusses the consequent crisis of the resources based approaches and the emerging of the Networking as a reply to the need of a more quality in knowledge management and to the recognition of larger capacities learned by project managers in creating organizational assets and in net building.
The networking can be considered from an internal point of view and an external one. From one side, the paper will consider the macro and micro structure of projects in transition countries based on different roles and functions of actors (grant holder, partner, sponsor,...); from the other side, the capacities to create stable relationship among project entities as the basis to achieve higher Efficacy and Efficiency. In the paper these topics will be discussed considering the Networking approach used in projects managed by Bologna University with the aim to develop local system focused on SMEs in Serbia with particular regard to the intangible assets as strategic factors in initiative development
Pedagogies to Develop Children’s Agency in School
No full textABSTRACT
This chapter addresses the construction of citizenship in educational terms and explores the effectiveness of philosophical activity in promoting a child agency inside and outside of school. It proposes an innovative theoretical framework by using different interrelating approaches to citizenship in order to devise alternative educational practices based on a reflective, dialogical, and shared view of political commitment within children and young people . The study is based on three theories: the agency-based paradigm of latest generation sociology; the Capability Approach (CA), as proposed by Amartya Sen and his colleagues and other scholars over the last decade; and Philosophy for Children, as per Matthew Lipman’s eponymous curriculum devised in the 1970s. The implications of this educational proposal are interpreted with an inclusive approach to participation, mainly in primary and secondary education level
NON-INVASIVE BLOOD PRESSURE AND OTHER PHYSIOLOGICAL DATA IN CHEMICALLY IMMOBILIZED BROWN BEARS (URSUS ARCTOS)
No full textFree-ranging brown bears (Ursus arctos) were snared and subsequently darted with a combination of xylazine-ketamine in Croatia (n = 5) or darted from a helicopter with a combination of medetomidine-tiletamine-zolazepam in Scandinavia (n = 20). Three adults and one yearling (1 year old) bear were captured in Croatia, with one adult being captured twice. The Scandinavian bears were divided into Group A (yearlings, n = 7) and Group B (subadults, n = 2 and adults, n = 11). The exertion time (time from activation of the trap or from the start of the helicopter chase to recumbency) and the induction time (time from darting to recumbency) were recorded. The rectal temperature (Tr) was measured as soon as possible after induction and then monitored at frequent intervals (varied between individuals) in immobilized bears. Blood pressure (BP) was measured with a non-invasive method (Korotkoff's technique) every 5 minutes. The heart rate (HR), respiratory rate (RR), and arterial haemoglobin oxygen saturation (SpO2) were recorded every 5 minutes. Reliability of the BP monitoring technique, trends of variation of the physiological variables, and the factors related to the capture were assessed. Both exertion and induction times were longer in Croatian bears than in Scandinavian bears. In Croatian bears, the Tr was either constant or slightly decreasing, with hyperthermia recorded in two individuals (Tr > 39.0° C). In Scandinavian bears, 17 of 20 individuals developed an initial hyperthermia. Four of five bears in Croatia and 17 of 20 bears in Scandinavia showed a decreasing trend in systolic and mean BP over time. According to the Korotkoff method, all bears were hypertensive (mean BP > 130 mmHg) with varying severity, and the systolic pressure was significantly lower in yearlings when compared to subadults and adults. Yearlings had significantly (p < 0.05) higher HR than subadults and adults, however there was no significant differences in RR, SpO2, and Tr between the age groups. All Croatian bears and 13 of 20 Scandinavian bears were moderately to severely hypoxemic (SpO2 < 90%). Further studies with simultaneous invasive and non-invasive (Korotkoff) BP monitoring techniques are required to confirm the accuracy of methods used in this study. The data presented here provides evidence of the physiological impact of different capture methods and chemical immobilization of brown bears in Croatia and Scandinavia
A tale of two siblings: two cases of AML arising from a single pre-leukemic DNMT3A mutant clone
No full textLetters to the EditorC N Hahn, D M Ross, J Feng, A Beligaswatte, D K Hiwase, W T Parker, M Ho, M Zawitkowski, K L Ambler, G D Cheetham, Y K Lee, M Babic, C M Butcher, G A Engler, A L Brown, R J D'Andrea, I D Lewis, A W Schreiber, L B To and H S Scot
Diversity and oenological characterization of indigenous Saccharomyces cerevisiae associated with Z ilavka grapes
No full textThe aim of this research was to identify the Saccharomyces spp. associated with A1/2ilavka grapes and to evaluate their enzymatic activities, H(2)S production and micro-fermentation performance. For this purpose, a total of 143 yeast strains isolated from three production areas of the Mostar wine region (Bosnia and Herzegovina) were studied and analysed. Firstly, yeasts were identified to genus level by growth on WL nutrient agar and the test of assimilation of lysine. Later, molecular identification at species level was carried out with RFLP analysis of 18S rDNA + ITS region, and at strain level with microsatellite-primed PCR (MSP-PCR). At physiological level yeast strains were grouped into different clusters by means of the Joining-Tree-Clustering-Method. All yeasts tested were identified as S. cerevisiae, resulting a total of 18 different strains. All of the investigated strains produced hydrogen sulphide, 89% were able to complete the fermentation, and none of them was able to synthesize killer toxins. Since enzymes play a very important role in wine aroma development, it was very encouraging that 33% of the strains were able to synthesize pectinolytic enzyme but only one produced beta-glucosidase. In the second part of the selection process two indigenous strains were compared with commercial yeast in a microvinification and A1/2ilavka wines with different profiles of volatiles were obtained. This research represents a first step in the selection of indigenous yeast strains from the Mostar region with the goal of maintaining the specific organoleptic characteristics of A1/2ilavka wine
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