485,338 research outputs found
Internal report cluster 1: Urban freight innovations and solutions for sustainable deliveries (1/4)
Technical report about sustainable urban freight solutions, part 1 of
Multi-Path Alpha-Fair Resource Allocation at Scale in Distributed Software Defined Networks
The performance of computer networks relies on how bandwidth is shared among
different flows. Fair resource allocation is a challenging problem particularly
when the flows evolve over time. To address this issue, bandwidth sharing
techniques that quickly react to the traffic fluctuations are of interest,
especially in large scale settings with hundreds of nodes and thousands of
flows. In this context, we propose a distributed algorithm based on the
Alternating Direction Method of Multipliers (ADMM) that tackles the multi-path
fair resource allocation problem in a distributed SDN control architecture. Our
ADMM-based algorithm continuously generates a sequence of resource allocation
solutions converging to the fair allocation while always remaining feasible, a
property that standard primal-dual decomposition methods often lack. Thanks to
the distribution of all computer intensive operations, we demonstrate that we
can handle large instances at scale
Clipping Our Own Wings: Copyright and Creativity in Communication Research
Presents survey findings on how knowledge of copyright issues affects communication scholars' research decisions, access, and publication. Recommends developing best practices standards for the U.S. doctrine of fair use to expand creative options
Code of Best Practices in Fair Use for Media Literacy Education
Outlines five principles representing the consensus among media literacy educators on best practices in fair use -- the right to use copyrighted material without permission or payment when used mainly for cultural or social benefits
The Needs Analysis of Training for Elementary School Teachers (Prior Analysis to the Research of Professional and Pedagogical Competencies Development in Civics Education)
ABSTRACT
PurposeâResearch on teacher training needs analysis in order to study the
development of pedagogical and professional elementary school teachers
competencies in Civic education aims to describe the level of pedagogical and
professionalâ elementary school teachers competencies gap and to describe the
elementary teacher training needs in order to develop pedagogical and
professional deficit.
MethodâThis study is a descriptive research. The study sites spread across the
elementary school teachers in 8 subdistricts which are Suruh, Bancak, Bringin,
Pabelan, Tengaran, Kaliwungu, Getasan and Ambarawa. The sample consists of
72 teachers, taken by purposive clusters sampling. Data collection technique is
using self-evaluation in the form of questionnaire that has been tested for the
validity and reliability. Analysis showed that the corrected item-total correlation
is 0,794 for the highest and 0,221 for the lowest. Reliability test results showed
that the alpha reliability coefficient is 0.945. Moreover, the techniques of data
analysis are using descriptive statistical analysis and gap analysis.
Findings âThe result of the analysis shows that there are1) the gap of teachersâ
pedagogic competency is 23.07 %, 2) the gap of teachers professional competency
is 30 % , dan 3) the gap of pedagogic and professional competencies includes;(a)
developing the curriculum which is related to Civics Education, (b) conducting
assesment and evaluation of the process and result of learning process, (c) using
the result of assesment and evaluation for the sake of teaching and learning, (d)
Doing refective action (Class Action Research) to enhance teaching and learning
process, (e) mastering the concept and principle of protection and development
of Human Rights and also fair and proper law enforcement, (f) developing the
material of civics education creatively, (g) developing sustainable profesionalism
through reflective action, (h) using information technology and communication
for self developing action.
SignificanceâThis research discusses about the gap of elementary school
teachersâ competencies, spesifically civics education. Gap occurs when there is
discrepancy between ideal competencies and empirical competencies of teachersâ
performance. The results of this research are useful for designing training in
teachersâ competence
The spatial economy of North American trade fairs
The version of record [Bathelt, H., & Spigel, B. (2012). The spatial
economy of North American trade fairs. The Canadian Geographer/Le
Geographe Canadien, 56(1), 18-38.] is available online at:
http://onlinelibrary.wiley.com/doi/10.1111/j.1541-0064.2011.00396.x/fullThrough a study of trade fairs, this article illustrates that relational approaches to economic geography are not limited to the sphere of economic and social relationships. These relationships are influenced by and, in turn, shape material realities, such as specific infrastructure and the labour market, in a reflexive manner. Trade fairs are ârelational eventsâ that bring together regional, national, and often international producers, users, suppliers, and other agents of a value chain or technology field for the purpose of exchanging knowledge about technological and market developments, building partnerships, and maintaining existing networks through learning by interaction and observation. However, these events are also situated in space and time, grounded in the contexts of particular industries, trade patterns, public and private investments, as well as the economic geographies of places. Focusing on North America, this article presents and analyzes data on the economic geography of trade fairs and their regional economic impact (number of events, exhibitors, attendees, exhibition space). It explores regional trade fair patterns and dynamic changes in major trade fair cities by emphasizing the role of history and industry context
Green Jobs in a Sustainable Food System
The U.S. food sector is among the most productive in the world and is a significant driver of our economy. Yet, it's failing us in major ways -- putting public health, livelihoods and our environment at great risk. Obesity and diabetes rates are rising, communities are plagued by food deserts, and agriculture runoff is the biggest source of pollution in our rivers and lakes.The good news is that communities across the country are addressing this crisis in innovative ways. Through different community-based efforts, local activists and food advocates are finding ways to improve community health and environmental outcomes while creating a more economically equitable food system.It is within this context that this report identifies opportunities to transform jobs in the green economy and enhance environmental and economic equity outcomes in the future. The initial analysis promises opportunities for workers to build long-term skills, and emphasizes the importance of linking local efforts to broader regional and national policy platforms. This multi-level engagement and collaboration will help set in motion the systemic changes needed to create a more sustainable and equitable food system
Globalized justice - fragmented justice. Human rights violations by "private" transnational actors
Plenarvortrag Weltkongress der Rechtsphilosophie und Sozialphilosophie, 24.-29. Mai, Granada 2005. S.a. die deutsche Fassung: "Die anonyme Matrix: Menschenrechtsverletzungen durch "private" transnationale Akteure". Spanische Fassung: Sociedad global, justicia fragmentada: sobre la violatiĂłn de los derechos humanos por actores transnacionales 'privados'. In: Manuel Escamilla and Modesto Saavedra (eds.), Law and Justice in a global society, International Association for philosophy of law and social philosophy, Granada 2005, S. 529-546
Detection loophole attacks on semi-device-independent quantum and classical protocols
Semi-device-independent quantum protocols realize information tasks - e.g.
secure key distribution, random access coding, and randomness generation - in a
scenario where no assumption on the internal working of the devices used in the
protocol is made, except their dimension. These protocols offer two main
advantages: first, their implementation is often less demanding than
fully-device-independent protocols. Second, they are more secure than their
device-dependent counterparts. Their classical analogous is represented by
random access codes, which provide a general framework for describing one-sided
classical communication tasks. We discuss conditions under which detection
inefficiencies can be exploited by a malicious provider to fake the performance
of semi-device-independent quantum and classical protocols - and how to prevent
it.Comment: 13 pages, 1 figure, published versio
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