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See detailPraxistagebücher aus der Sozialen Arbeit in Zeiten von Covid-19 – Möglichkeiten, Herausforderungen und Grenzen der digitalen Kommunikation
Flammang, Manou Laure UL; Böwen, Petra UL

Report (2020)

In this publication, representatives from 8 different practical fields of social work describe how communication and interaction with their target groups changed during the confinement measures due to ... [more ▼]

In this publication, representatives from 8 different practical fields of social work describe how communication and interaction with their target groups changed during the confinement measures due to Covid-19 and how they deal with this exceptional situation. The focus is on digital communication with the addressees. The publication is rounded off by a comprehensive analysis of the practice diaries and considerations for the future of digitisation in social work. It contains contributions in German and in French. [less ▲]

Detailed reference viewed: 1413 (82 UL)
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See detailPrdeicing the failure of disc surgery by a hypofunctional HPA axis: evidence from a prospective study of patients undergoing disc surgery
Geiss, Andrea; Rohleder, Nicolas; Kirschbaum, Clemens et al

in Pain (2005)

Detailed reference viewed: 73 (0 UL)
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See detailPre and post-treatments to improve weldability and mechanical properties of Aluminum-Polyamide laser welded specimens
Amne Elahi, Mahdi UL; Koch, Marcus; Heck, Mike et al

in Procedia CIRP (2020), 94

The laser polishing surface treatment is a prerequisite for enhanced weldability that is enabled by superior adhesion between the weldments. The paper describes the laser polishing process of the aluminum ... [more ▼]

The laser polishing surface treatment is a prerequisite for enhanced weldability that is enabled by superior adhesion between the weldments. The paper describes the laser polishing process of the aluminum surface to develop a relatively thick and porous artificial aluminum oxide layer. Microscopic observation shows the laser polishing process significantly improves the adhesion of molten polyamide to the aluminum surface. Besides, the shear load of the pretreated joints is much higher than that of as-received ones. However, for the majority of the welded samples, the failure happens at the polyamide near the interface of aluminum/polyamide due to the thermal effect and structural changes of polyamide during the welding process. By applying the post-treatment of the welded specimens with different cycles, the mentioned failure mechanism is not observed anymore. Therefore, the mechanical properties of the joint will be improved and reach to the limits of the base materials. [less ▲]

Detailed reference viewed: 94 (1 UL)
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See detailPre- and in-service teachers´ attitudes toward students with learning difficulties and challenging behavior.
Krischler, Mireille UL; Pit-Ten Cate, Ineke UL

in Frontiers in Psychology (2019), 10(327), 1-10

The implementation of inclusive policies is largely dependent on teachers´ willingness to accommodate students with special educational needs (SEN) in mainstream classrooms, which is affected by their ... [more ▼]

The implementation of inclusive policies is largely dependent on teachers´ willingness to accommodate students with special educational needs (SEN) in mainstream classrooms, which is affected by their perceived competence and attitudes. This study investigated attitudes of pre- and in-service teachers toward students with two types of SEN: challenging behavior and learning difficulties. The three components of attitude (affective, cognitive, and behavioral) were assessed using indirect and direct measures. Results revealed that teachers held negative implicit attitudes toward challenging behavior and learning difficulties, however implicit attitudes did not vary as a function of the type of SEN. Ratings of the stereotypical dimensions warmth and competence and overall ratings of scholastic achievement were affected by professional status and type of SEN. Professional status, implicit attitudes and stereotypical knowledge together explained 52 and 43% of the variance in teachers´ ratings of academic proficiency for students with challenging behavior and learning difficulties, respectively. Results are interpreted within the theoretical framework and implications for teacher training are discussed. [less ▲]

Detailed reference viewed: 143 (10 UL)
See detailPre-Conference Workshop #3 : Experimental Media Archaeology
Fickers, Andreas UL

Presentation (2017, June 28)

Detailed reference viewed: 28 (1 UL)
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See detailPre-Courant algebroids
Bruce, Andrew UL; Grabowski, Janusz

in Journal of Geometry and Physics (2019), 142

Pre-Courant algebroids are ‘Courant algebroids’ without the Jacobi identity for the Courant–Dorfman bracket. We examine the corresponding supermanifold description of pre-Courant algebroids and some ... [more ▼]

Pre-Courant algebroids are ‘Courant algebroids’ without the Jacobi identity for the Courant–Dorfman bracket. We examine the corresponding supermanifold description of pre-Courant algebroids and some direct consequences thereof. In particular, we define symplectic almost Lie 2-algebroids and show how they correspond to pre-Courant algebroids. We give the definition of (sub-)Dirac structures and study the naïve quasi-cochain complex within the setting of supergeometry. Moreover, the framework of supermanifolds allows us to economically define and work with pre-Courant algebroids equipped with a compatible non-negative grading. VB-Courant algebroids are natural examples of what we call weighted pre-Courant algebroids and our approach drastically simplifies working with them. [less ▲]

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See detailPre-empted Patents, Infringed Patents, and Firms’ Participation in Markets for Technology
Grimpe, Christoph; Hussinger, Katrin UL

in Research Policy (2014)

Detailed reference viewed: 301 (127 UL)
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See detailPre-empting Technology Competition through Firm Acquisition
Hussinger, Katrin UL; Grimpe, Christoph

in Economics Letters (2008)

This paper shows that firms engage in horizontal mergers and acquisitions to pre-empt competition in technology markets. Making use of the patent application procedure at the European Patent Office we ... [more ▼]

This paper shows that firms engage in horizontal mergers and acquisitions to pre-empt competition in technology markets. Making use of the patent application procedure at the European Patent Office we introduce a measure for potential entry barriers in technology markets. [less ▲]

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See detailPre-Hurricane Consumer Stockpiling and Post- Hurricane Product Availability: Empirical Evidence from Natural Experiments
Pan, Xiaodan; Dresner, Martin; Mantin, Binyamin UL et al

in Production and Operations Management (2020), 29(10), 2350-2380

The provision of essential supplies is a key service provided by retailers when demand spikes due to consumer stockpiling during environmental emergencies. Moreover, it is important for retailers to ... [more ▼]

The provision of essential supplies is a key service provided by retailers when demand spikes due to consumer stockpiling during environmental emergencies. Moreover, it is important for retailers to quickly recover from these events by replenishing the stock of essential supplies to meet the continuing needs of local residents. The main purpose of this research is to study consumer precautionary stockpiling behavior prior to the onset of hurricane landfalls and determine the impact of this behavior on in-store product availability for various formats of retail store outlets. Specifically, we focus on the bottled water product category, an essential emergency category in hurricane preparedness. This study combines an event analysis methodology with econometric models using archival retail scanner data from 60 U.S. retail chains located in 963 counties and real-time data from four recent U.S. continental hurricanes. We find that supply-side characteristics (retail network and product variety), demand-side characteristics (hurricane experience and household income), and disaster characteristics (hazard proximity and hazard intensity) significantly affect consumer stockpiling propensity as the hurricanes approach. The increased consumer stockpiling has immediate and longer-term impacts on retail operations, namely, in-store product availability. Among various retail formats, drug stores are associated with the highest consumer stockpiling propensity before hurricanes, while dollar stores and discount stores are associated with the lowest in-store product availability following hurricanes. Our study points to the need for retailers and policymakers to carefully monitor factors affecting consumer stockpiling behavior that will allow for better allocation of critical supplies during the hurricane season. [less ▲]

Detailed reference viewed: 64 (10 UL)
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See detailA pre-literacy intervention study in a multilingual setting
Wealer, Cyril UL; Fricke, Silke; Engel de Abreu, Pascale UL

Scientific Conference (2017, August)

Detailed reference viewed: 20 (4 UL)
See detailA pre-literary intervention in a multilingual setting.
Wealer, Cyril UL; Fricke, Silke; Engel de Abreu, Pascale UL

Poster (2015, September)

Detailed reference viewed: 18 (0 UL)
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See detailThe Pre-operational Legal Review of Cyber Capabilities: Ensuring the Legality of Cyber Weapons
Blount, Percy UL

in Northern Kentucky Law Review (2012)

Detailed reference viewed: 24 (0 UL)
See detailThe “pre-scientific” thesis: the formation of a new genre in Austrian schools
Huemer, Birgit UL

Presentation (2015, July 27)

Detailed reference viewed: 38 (1 UL)
See detailPre-service teachers and classroom teachers learning together: A collaborative teacher education program
Ferrara, J; Siry, Christina UL

in Excelsior: Leadership in Teaching and Learning (2007), 1(2), 39-48

The field-based science methods course described in this paper uses a professional development school to enhance the professional practices of classroom teachers, pre-service teachers, and college faculty ... [more ▼]

The field-based science methods course described in this paper uses a professional development school to enhance the professional practices of classroom teachers, pre-service teachers, and college faculty alike. Participants work together to develop and teach inquiry-based science in a fourth-grade classroom. This article describes how participants are immersed in the teaching and learning of science. [less ▲]

Detailed reference viewed: 58 (1 UL)
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See detailPRE-SERVICE TEACHERS’ BELIEFS ABOUT MATHEMATICS EDUCATION FOR 3-6-YEAR-OLD CHILDREN
Vlassis, Joëlle UL; Poncelet, Débora UL

in Csíkos, C.; Rausch, A.; Szitányi, J. (Eds.) Proceedings of 40th Conference of the International Group for the Psychology of Mathematics Education (2016)

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See detailPre-shaping Bursty Transmissions under IEEE802.1Q as a Simple and Efficient QoS Mechanism
Navet, Nicolas UL; Migge, Jörn; Villanueva, Josetxo et al

in Proc. WCX World Congress Experience (2018, April)

The automotive industry is swiftly moving towards Ethernet as the high-speed communication network for in-vehicle communication. There is nonetheless a need for protocols that go beyond what standard ... [more ▼]

The automotive industry is swiftly moving towards Ethernet as the high-speed communication network for in-vehicle communication. There is nonetheless a need for protocols that go beyond what standard Ethernet has to offer in order to provide additional QoS to demanding applications such as ADAS systems or audio/video streaming. The main protocols currently considered for that purpose are IEEE802.1Q, AVB with the Credit Based Shaper mechanism (IEEE802.1Qav) and TSN with its Time-Aware Shaper (IEEE802.1Qbv). AVB/CBS and TSN/TAS both provide efficient QoS mechanisms and they can be used in a combined manner, which offers many possibilities to the designer. Their use however requires dedicated hardware and software components, and clock synchronization in the case of TAS. Previous studies have also shown that the efficiency of these protocols depends much on the application at hand and the value of the configuration parameters. In this work, we explore the use of “pre-shaping” strategies under IEEE802.1Q for bursty traffic such as audio/video streams as a simple and efficient alternative to AVB/CBS and TSN/TAS. Pre-shaping means inserting on the sender side “well-chosen” pauses between successive frames of a transmission burst (e.g., as it happens when sending a camera frame), all the other characteristics of the traffic remaining unchanged. We show on an automotive case-study how the use of pre-shaping for audio/video streams leads to a drastic reduction of the communication latencies for the best-effort streams while enabling to meet the timing constraints for the rest of the traffic. We then discuss the limitations of the pre-shaping mechanism and future works needed to facilitate its adoption. [less ▲]

Detailed reference viewed: 88 (4 UL)
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See detailPre-shaping Bursty Transmissions under IEEE802.1Q as a Simple and Efficient QoS Mechanism
Navet, Nicolas UL; Migge, Jörn; Villanueva, Josetxo et al

in SAE International Journal of Passenger Cars - Electronic and Electrical Systems (2018), 11(3), 197-204

The automotive industry is swiftly moving towards Ethernet as the high-speed communication network for in-vehicle communication. There is nonetheless a need for protocols that go beyond what standard ... [more ▼]

The automotive industry is swiftly moving towards Ethernet as the high-speed communication network for in-vehicle communication. There is nonetheless a need for protocols that go beyond what standard Ethernet has to offer in order to provide additional QoS to demanding applications such as ADAS systems (Advanced Driver-Assistance Systems) or audio/video streaming. The main protocols currently considered for that purpose are IEEE802.1Q, AVB with the Credit Based Shaper mechanism (IEEE802.1Qav) and TSN with its Time-Aware Shaper (IEEE802.1Qbv). AVB/CBS and TSN/TAS both provide efficient QoS mechanisms and they can be used in a combined manner, which offers many possibilities to the designer. Their use however requires dedicated hardware and software components, and clock synchronization in the case of TAS. Previous studies have also shown that the efficiency of these protocols depends much on the application at hand and the value of the configuration parameters. In this work, we explore the use of “pre-shaping” strategies under IEEE802.1Q for bursty traffic such as audio/video streams as a simple and efficient alternative to AVB/CBS and TSN/TAS. Pre-shaping means inserting on the sender side “well-chosen” pauses between successive frames of a transmission burst (e.g., as it happens when sending a camera frame), all the other characteristics of the traffic remaining unchanged. We show on an automotive case-study how the use of pre-shaping for audio/video streams leads to a drastic reduction of the communication latencies for the best-effort streams while enabling meeting the timing constraints for the rest of the traffic. We then discuss the limitations of the pre-shaping mechanism and what is needed to facilitate its adoption. [less ▲]

Detailed reference viewed: 97 (2 UL)