Enterprise, Innovation and the Enviroment

This report aims to profile the activity of small and medium sized enterprises (SME) operating in the UK's environmental sector. The environmental sector is expected to be critical for the future economic development of the UK supporting a new low carbon economy. As many entrepreneurial and innovative firms require significant funding to support their innovative activities this report specifically investigates the innovation activity and financial requirements UK environmental companies. The survey report highlights the role of a variety of funding sources, including public investment for supporting these firms, particularly those active in R&D. Responding firms show a strong record of performance to date, particularly R&D active companies but also have expectations of additional finance being made available for the future in the form of loans, equity finance and government funding

Diluted antiferromagnet in a ferromagnetic enviroment

The question of robustness of a network under random ``attacks'' is treated in the framework of critical phenomena. The persistence of spontaneous magnetization of a ferromagnetic system to the random inclusion of antiferromagnetic interactions is investigated. After examing the static properties of the quenched version (in respect to the random antiferromagnetic interactions) of the model, the persistence of the magnetization is analysed also in the annealed approximation, and the difference in the results are discussed

Performance prediction tools for low impact building design

IT systems are emerging that may be used to support decisions relating to the design of a built enviroment that has low impact in terms of energy use and environmental emissions. This paper summarises this prospect in relation to four complementary application areas: digital cities, rational planning, virtual design and Internet energy services

Decoherence induced by a chaotic environment: A quantum walker with a complex coin

We study the differences between the process of decoherence induced by chaotic and regular environments. For this we analyze a family of simple models wich contain both regular and chaotic environments. In all cases the system of interest is a "quantum walker", i.e. a quantum particle that can move on a lattice with a finite number of sites. The walker interacts with an environment wich has a D dimensional Hilbert space. The results we obtain suggest that regular and chaotic environments are not distinguishable from each other in a (short) timescale t*, wich scales with the dimensionality of the environment as t*~log(D). Howeber, chaotic environments continue to be effective over exponentially longer timescales while regular environments tend to reach saturation much sooner. We present both numerical and analytical results supporting this conclusion. The family of chaotic evolutions we consider includes the so-called quantum multi-baker-map as a particular case.Comment: 7 pages, 8 figure

Quantum erasure with causally disconnected choice

The counterintuitive features of quantum physics challenge many common-sense assumptions. In an interferometric quantum eraser experiment, one can actively choose whether or not to erase which-path information, a particle feature, of one quantum system and thus observe its wave feature via interference or not by performing a suitable measurement on a distant quantum system entangled with it. In all experiments performed to date, this choice took place either in the past or, in some delayed-choice arrangements, in the future of the interference. Thus in principle, physical communications between choice and interference were not excluded. Here we report a quantum eraser experiment, in which by enforcing Einstein locality no such communication is possible. This is achieved by independent active choices, which are space-like separated from the interference. Our setup employs hybrid path-polarization entangled photon pairs which are distributed over an optical fiber link of 55 m in one experiment, or over a free-space link of 144 km in another. No naive realistic picture is compatible with our results because whether a quantum could be seen as showing particle- or wave-like behavior would depend on a causally disconnected choice. It is therefore suggestive to abandon such pictures altogether

Kontribusi Motivasi, Fasilitas, dan Lingkungan Belajar Terhadap Kedisiplinan Belajar dan Dampaknya Pada Hasil Belajar Matematika

The purpose of the study there are three, (1) To test the motivation, facilities, and learning enviroment on learning outcomes mathematics indirectly through learning dicipline, (2) To test the motivation, facilities, and learning enviroment of learning dicipline, and (3) To test the contribution of learning dicipline on learning outcomes in mathematics. Type of correlational quantitative research. The research population is 501 students of class X SMK Negeri 1 Miri Sragen. The sample of 222 students is determined by the Slovin formula. Sampling with proportional random sampling. Data collection techniques with closed questionnaires. Data analysis technique used path analysis with assumption test of F test, T test, and R2 test. Result of the research, (1) motivation, facilities, and learning enviroment contribute simultaneously to the results of Learning Mathematics through learning dicipline with (α = 0,05). Partially, motivation, fasilities and learning enviroment is contribute directly to the learning outcomes of mathematics and indirectly contribute positively through independence. (2) motvation, facilities, and learning enviroment contribute simultaneously to the learning dicipline with (α = 0.05). Partially, motivation that affect the dicipline of learning is 20%. facilities that affect learning dicipline by 13%. Learning enviroment that affect the learning dicipline of 13%. (3) Learning dicipline contributed to mathematics learning achievement of 8.59%