1,170 research outputs found
Agenda Control in Coalition Formation
No full textTheoretical models of government formation in political science usually assume that the head of state is non-strategic. In this paper, we analyze the power of an agenda setter who chooses the order in which players are recognized to form coalitions in simple games. We characterize those sets of players which can be imposed in the equilibrium coalition and show that the only decisive structures where the agenda setter can impose the presence of any minimal winning coalition are apex games, where a large player forms a winning coalition with any of the small players.Agenda Control; Cabinet Formation; Simple Games
PENGEMBANGAN ALAT BANTU LATIHAN SETTER DAN PASSING PADA PERMAINAN BOLAVOLI
No full textLatar belakang penelitian ini adalah kurangnya efesiensi dalam waktu dan
tenaga di proses latihan khusus posisi setter dan passing pada klup bolavoli
BRAVO dan VBKA Wanayasa Banjarnegara dikarenakan belum adanya alat bantu
latihan. Tujuan penelitian ini untuk mengembangkan alat bantu latihan setter dan
passing dalam permainan bolavoli guna meningkatkan kemampuan atlet.
Diharapkan dapat memberikan kontribusi positif dalam pembinaan atlet bolavoli.
Penelitian ini menggunakan pendekatan pengembangan produk (R & D)
dengan tahapan analisis kebutuhan, merancangan produk, pengembangan produk,
preliminary field testing, revisi hasil uji coba skala kecil, main field test, revisi hasil
uji coba skala besar, uji kelayakan, revisi uji kelayakan, desimilasi dan
implemintasi produk akhir. Subjek penelitian ini adalah 2 orang ahli validator
seperti ahli bolavoli 1 orang dan pelatih bolavoli 8 orang dan 24 atlet putra maupun
putri (skala kecil) dan seluruh atlet klup bolavoli BRAVO dan VBKA Wanayasa
Banjarnegara. Data dikumpulkan melalui observasi lapangan dan uji coba skala
kecil dan besar untuk menguji keefektifan alat bantu latihan yang dikembangkan.
Pada hasil evaluasi dan validasi Ahli bola voli dan pelatih terhadap produk
alat bantu latihan setter dan passing bola voli sebelum dilakukan uji coba skala
kecil. Dengan jumalah semua aspek memperoleh menunjukan jumlah 598, rata –
rata 85.42, presentase 85,42 % dengan kategori Sangat Baik, sehingga dapat
digunakan uji skala kecil namun perlu direvisi. Hasil analisis kuesioner respon
peserta pelatihan terhadap produk alat bantu latihan setter dan passing bola voli
pada uji coba skala besar termasuk dalam kategori Sangat Baik dengan perolehan
presentase sebesar 89,80%. sehingga produk alat, alat bantu latihan setter dan
passing bola voli sangat layak digunakan.
Berdasarkan hasil penelitian, dapat disimpulkan bahwa produk alat bantu
latihan setter dan passing bola voli yang telah melalui beberapa proses uji coba dan
revisi produk dapat digunakan oleh pelatih dalam pelatihan setter dan passing pada
pelatihan bola voli menyatakan alat bantu latihan setter dan passing bola voli sangat
layak digunakan untuk proses latihan dan efektif dalam waktu dan tenaga
"The European Commission's power: Overrated or Justified?"
No full textFor decades the bureaucratic and legislative power of the European Commission has interested scholars of EU studies. Yet, relatively little data are known about the exact division of power of the European Commission in legislative affairs apart from case studies (Cini, 2000; Schmidt, 2000). This paper presents analyses of qualitative and quantitative data to analyse how powerful some experts consider the Commission to be and to see how influential it actually is. Based on recently collected expert interviews I show that senior EU officials rate the Commission highly against other EU institutions and the member states. I contrast these results with the actual influence of the Commission on the legislative process. Using the data set "Decision Making in the European Union" (Thomson, Stokman, König, & Achen, 2005), which contains data on positions of EU member states and institutions in 60 legislative acts, I show the direct influence which the Commission exerts with its agenda setting and bureaucratic power. Multivariate analyses of 150 negotiation issues between the member states, the European Parliament and the European Commission demonstrate that the influence of the European Commission is overrated because it cannot defend its original proposal as much as intended. The more the Commission takes EU members positions into account, the more success it has in the EU negotiations. Thus, it functions rather as agent dependent on member states than as supranational entrepreneur
Contemporary Art by Henry Setter Featured at D\u27s Marian Library Gallery
No full textNews release announces that an exhibition of contemporary art by Henry Setter will be at UD\u27s Marian Library Art Gallery
An Analysis of Institutional Change in the European Union with an Application to Social Policy
No full textInstitutional change is guided by rules. In the European Union these rules are given by Art. 250- 252 of the Treaty of Amsterdam. These articles define the actors and rules that bring about changes in policies in the European Union. We analyze these articles as games in extensive form and characterize and compare the equilibria of these games. This analysis identifies the decisive actors the conditions under which it comes to institutional change within the European Union. In addition we analyze the tendencies for centralization inherent in these decision procedures as well as their ability to come up with solutions that are a good compromise between all actors.endogenous institutional change, law and economics
Topological Quantum Field Theory and the Geometric Langlands Correspondence
No full textIn the pioneering work of A. Kapustin and E. Witten, the geometric Langlands program of number theory was shown to be intimately related to duality of GL-twisted N=4 super Yang-Mills theory compactified on a Riemann surface. In this thesis, we generalize Kapustin-Witten by investigating compactification of the GL-twisted theory to three dimensions on a circle (for various values of the twisting parameter t). By considering boundary conditions in the three-dimensional description, we classify codimension-two surface operators of the GL-twisted theory, generalizing those surface operators studied by S. Gukov and E. Witten. For t=i, we propose a complete description of the 2-category of surface operators in terms of module categories, and, in addition, we determine the monoidal category of line operators which includes Wilson lines as special objects. For t=1 and t=0, we discuss surface and line operators in the abelian case.
We generalize Kapustin-Witten also by analyzing a separate twisted version of N=4, the Vafa-Witten theory. After introducing a new four-dimensional topological gauge theory, the gauged 4d A-model, we locate the Vafa-Witten theory as a special case. Compactification of the Vafa-Witten theory on a circle and on a Riemann surface is discussed. Several novel two- and three-dimensional topological gauge theories are studied throughout the thesis and in the appendices.
In work unrelated to the main thread of the thesis, we conclude by classifying codimension-one topological defects in two-dimensional sigma models with various amounts of supersymmetry.</p
Ferroelectric transistors with improved characteristics at high temperature
No full textWe report on the temperature dependence of ferroelectric metal-oxide-semiconductor (MOS) transistors and explain the observed improved characteristics based on the dielectric response of ferroelectric materials close to the Curie temperature. The hysteretic current-voltage static characteristics of a fully depleted silicon-on-insulator transistor, with 40 nm vinylidene fluoride trifluorethylene, and 10 nm SiO2 gate stack, are measured from 300 to 400 K. In contrast with conventional MOS field effect transistors (MOSFETs), the subthreshold swing and the transconductance show, respectively, a minimum and a maximum near the Curie temperature (355 K) of the ferroelectric material. A phenomenological model is proposed based on the Landau-Ginzburg theory. This work demonstrates that a MOSFET with a ferroelectric layer integrated in the gate stack could have nondegraded or even improved subthreshold swing and transconductance at high temperature even though the hysteresis window is reduced. As a consequence, we suggest that for ferroelectric transistors with appropriately designed Curie temperatures, the performance degradation of logic or analog circuits, nowadays operating near 100 °C, could be avoided. © 2010 American Institute of Physics
Low voltage ferroelectric FET with sub-l00nm copolymer P(VDF-TrFE) gate dielectric for non-volatile IT memory
No full textA polymer based Ferroelectric gate FET at IT nonvolatile memory on bulk silicon is demonstrated. Spin-coated 40nm and lOOnm P(VDF-TrFE) (70%-30%) ultra-thin films have been integrated onto lOnm Si02 layer as gate dielectric into a conventional silicon n-MOSFETs. A IT non-volatile memory cell with an operating voltage as low as 6V, for the thinnest (40nm) gate ferroelectric copolymer dielectric, is demonstrated for the first time. The reported Fe-FET devices have Ion/Ioff ranging from 105 to 10 6 and retention time up to few days. Experiments show reliable memory operation up to 105 cycles and programming time in the order of ms.© 2008 IEEE
1T memory cell based on PVDF-TrFE field effect transistor
No full textInterest in vinylidene fluoride (VDF) co-polymer with trifluorethylene (TrFE) P(VDF-TrFE) as ferroelectric material for memory application is driven by the prospect of having low cost and low operating voltage devices integrated on silicon and, at long term, migrate on flexible substrates. Some previous studies reported FET design using copolymers [1-8] but none of these structures were fully integrated on silicon wafers into a quasi-standard MOSFET fabrication process. We present for the first time the integration of a P(VDF-TrFE) (70%-30%) layer into a standard n-MOS transistor gate stack through a conventional semiconductor technology. This allows us to achieve a one-transistor (IT) Non Volatile Memory (NVM) cell. The operation voltage required for the 100nm organic ferroelectric thickness is less than 12V and a retention time ranging from few hours to few days is reported. © 2008 Materials Research Society
Design and competitive advantage: collaborative strategies enabling radical innovations of meanings
No full textThis seminar was delivered on 30th April 2012 by Dr Claudio Dell'Era, Assistant Professor in the Department of Management, Economics and Industrial Engineering at the Politecnico di Milano, where he also serves as Co-Director of MaDe In Lab, the Laboratory of Management of Design and Innovation of MIP Politecnico di Milano. Research activities developed by Claudio Dell’Era are concentrated in the area of Management of Innovation. Specifically research interests are about two main streams: the former concentrates on innovation strategies developed by leading companies that operate in design-intensive industries where symbolic and emotional values represents critical success factors to generate competitive advantage (Management of Design-Driven Innovation); while the latter analyzes approaches and practices adopted during innovation processes by high-tech companies that face turbulent environments (Management of Technological Innovations in Turbulent Environments). He has published in relevant international journals, such as the Journal of Product Innovation Management, Long Range Planning, R&D Management, International the Journal of Operations & Production Management, Industry & Innovation and the International Journal of Innovation Management. The presentation was hosted at Brunel University as part of the Human Centred Design Institute (HCDI) Research Seminar Series. HCDI is a University Research Centre (URC) that brings together expertise in Human-centred Design which combines methodologies and technologies from design, engineering, computer science, artificial intelligence and philosophy. Human-centred Design leads to machines, systems and products which are physically, cognitively and emotionally intuitive to their users. The Human Centre Design seminar series are events designed to encourage communication and teamwork with colleagues across the university and experts leaders in human-centred related topics.Customers are paying increasing attention to product design, whether the aesthetic, symbolic or emotional meanings of products. Designers can support companies in exploring customers’ needs and the appropriate signs (such as form, colours, materials, etc) that give meaning to products. Managing collaborations with designers is therefore a critical issue for companies that operate in design-intensive industries. The seminar discusses how a company may develop a proper collaborative strategy by identifying an effective portfolio of designers. It shows that companies that innovate collaborate with a broad range of external designers. Most important, innovativeness does not depend on diversity brought by an individual designer, but on diversity brought by the entire portfolio of designers of a firm. The implication is that companies should not focus only on the characteristics of single external parties when developing a collaborative innovation strategy, but, rather, manage carefully a balanced portfolio of collaborators
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