Recoverable prevalence in growing scale-free networks and the effective immunization

We study the persistent recoverable prevalence and the extinction of computer viruses via e-mails on a growing scale-free network with new users, which structure is estimated form real data. The typical phenomenon is simulated in a realistic model with the probabilistic execution and detection of viruses. Moreover, the conditions of extinction by random and targeted immunizations for hubs are derived through bifurcation analysis for simpler models by using a mean-field approximation without the connectivity correlations. We can qualitatively understand the mechanisms of the spread in linearly growing scale-free networks.Comment: 9 pages, 9 figures, 1 table. Update version after helpful referee comment

A proposal of fuzzy connective with learning function and its application to fuzzy retrieval system

A new fuzzy connective and a structure of network constructed by fuzzy connectives are proposed to overcome a drawback of conventional fuzzy retrieval systems. This network represents a retrieval query and the fuzzy connectives in networks have a learning function to adjust its parameters by data from a database and outputs of a user. The fuzzy retrieval systems employing this network are also constructed. Users can retrieve results even with a query whose attributes do not exist in a database schema and can get satisfactory results for variety of thinkings by learning function

Role of hydrophobic interaction in hapten-antibody binding

The precipitation reaction of bovine serum albumin coupled with p-azophenylleucine with homologous antibody was inhibited by several structurally related haptens. The isobutyl group substituent on alpha-carbon atom of the leucine residue contributed more than -5.8 Kcal/mol to the free energy of binding. This value was consistent with the free energy change expected from the transfer of n-butane from an aqueous environment to liquid n-butane. The observed contribution was explained, in terms of the hydrophobic interaction of the isobutyl group with the antigen binding site of the antibody molecule. These results were also compared with other hapten-antibody systems.</p

Assita

Honorable Mention Inspired by the culture of the Burkina Faso. Why do you believe African homeowners will be interested in building a home such as the one you have submitted today? In our design, as mentioned before, we focused in one main aspect: giving new perspectives around their existing ways of constructing. We believe to have got in contact with very main aspects of their construction that needed a change and many others that didn´t so, at least for now, we gave priority to the ones we think they should be changed/improved for a better quality of living, of their own very unique style of living Do you believe young African designers will create outstanding examples of modern African architecture if they were exposed to such concepts during their university curriculum? Us, as a modernized culture, find inspiration and ‘’help’’ from many other countries that gave a solution to a problem that we might have had. In this way, we could say someone else has taught us with its different approach or perspective to that same problem. If looking at it this way, it´s more about showing them how we would solve something that they haven’t already because of the lack of communication with other architects or media. So the need from others to teach abroad and give different ways of thinking about design in order to make a change should be the very next step. What did you find most interesting or challenging during the research and development of your prototype? The real challenge was to give a new meaning to the word ‘modern‘‘. We didn´t want to focus it only on form and newer materials but in new/different ways that we are not used to. We want to let them progress, giving them ‘touches‘‘ to their actual architecture, and not changing everything

More Tolerant Reconstructed Networks by Self-Healing against Attacks in Saving Resource

Complex network infrastructure systems for power-supply, communication, and transportation support our economical and social activities, however they are extremely vulnerable against the frequently increasing large disasters or attacks. Thus, a reconstructing from damaged network is rather advisable than empirically performed recovering to the original vulnerable one. In order to reconstruct a sustainable network, we focus on enhancing loops so as not to be trees as possible by node removals. Although this optimization is corresponded to an intractable combinatorial problem, we propose self-healing methods based on enhancing loops in applying an approximate calculation inspired from a statistical physics approach. We show that both higher robustness and efficiency are obtained in our proposed methods with saving the resource of links and ports than ones in the conventional healing methods. Moreover, the reconstructed network by healing can become more tolerant than the original one before attacks, when some extent of damaged links are reusable or compensated as investment of resource. These results will be open up the potential of network reconstruction by self-healing with adaptive capacity in the meaning of resilience.Comment: 23 pages, 6 figure

Demonstration of deterministic and high fidelity squeezing of quantum information

By employing at recent proposal (R. Filip, P. Marek and U.L. Andersen, Phys. Rev. A {\bf 71}, 042308 (2005) \cite{Filip05.pra}), we experimentally demonstrate a universal, deterministic and high-fidelity squeezing transformation of an optical field. It relies only on linear optics, homodyne detection, feedforward and an ancillary squeezed vacuum state, thus direct interaction between a strong pump and the quantum state is circumvented. We demonstrate three different squeezing levels for a coherent state input. This scheme is highly suitable for the fault-tolerant squeezing transformation in a continuous variable quantum computer.Comment: 5 pages, 4 figure