Tailoring the Phonon Band Structure in Binary Colloidal Mixtures

We analyze the phonon spectra of periodic structures formed by two-dimensional mixtures of dipolar colloidal particles. These mixtures display an enormous variety of complex ordered configurations [J. Fornleitner {\it et al.}, Soft Matter {\bf 4}, 480 (2008)], allowing for the systematic investigation of the ensuing phonon spectra and the control of phononic gaps. We show how the shape of the phonon bands and the number and width of the phonon gaps can be controlled by changing the susceptibility ratio, the concentration and the mass ratio between the two components.Comment: 4 pages 3 figure

Anomalous Josephson effect in semiconducting nanowires as a signature of the topologically nontrivial phase

We study Josephson junctions made of semiconducting nanowires with Rashba spin-orbit coupling, where superconducting correlations are induced by the proximity effect. In the presence of a suitably directed magnetic field, the system displays the anomalous Josephson effect: a nonzero supercurrent in the absence of a phase bias between two superconductors. We show that this anomalous current can be increased significantly by tuning the nanowire into the helical regime. In particular, in a short junction, a large anomalous current is a signature for topologically nontrivial superconductivity in the nanowire.Comment: 10 pages, 9 figures; published versio

Express Prediction Of External Distinctive Features Of Person Using The Program Of Dermatoglyphics For Prediction

The aim of our study was to investigate the current state of computer identification applications, such as artificial neural networks. The material of our study were antroposcopic and anthropometric parameters obtained from 180 male and females aged 18–55 years living in the Ivano-Frankivsk region and belonging to Boiko, Lemko or Hutsul ethno-territorial group. Prints of comb pattern of the toes obtained by scanning with Futronic\u27s FS80 USB2.0 Fingerprint Scanner using the program ftrScanApiEx.exe. followed by the transfer of data to a personal computer. For statistical processing of the obtained data we use STATISTICA 12 from the company StatSoft. Construction of neural networks was carried out using Neural Networks. As a result of our research there was carried out the prediction of anthropometric and antroposcopic parameters (ethno-territorial and gender belonging, etc.) through the use of dermatoglyphic parameters of the hands and feet in 180 people living in the Ivano-Frankivsk region. The proposed method allowed to obtain the results with a forecasts probability 73–90 %. The use of above algorithm of actions allowed a 50 % increase of quality of identification of unknown person for using dermatoglyphic method and 67 % facilitatation of the process of identification (of quantitative and qualitative calculations, determining correlations between parameters) in comparison with previously known manner. Therefore, our proposed method can be used as an express diagnostics of common phenotypic traits of the person (ethno-territorial affiliation, gender, etc.) at admission of mass victims (natural disasters, acts of terrorism, armed conflicts, man-made disasters, etc.), it doesn\u27t not require a long time for conducting, specially trained staff and is inexpensive.Conclusions: The possibility of predicting external-recognizing features of a person such as etno-racial belonging, sex, anthropometric and antroposcopic parameters will allow widely use dermatoglyphic method at the level with other methods in conducting forensic identification of impersonal, fragmented and putrefactive modified corpses

Possible splitting of deconfinement and chiral transitions in strong magnetic fields in QCD

We show that finite-temperature deconfinement and chiral transitions can split in a strong enough magnetic field. The splitting in critical temperatures of these transitions in a constant magnetic field of a typical LHC magnitude is of the order of 10 MeV. A new deconfined phase with broken chiral symmetry appears.Comment: 4 pages, 6 figures; talk given by E. S. Fraga at 35th International Conference of High Energy Physics (ICHEP 2010), July 22-28, 2010, Paris, Franc

Triage Process in Emergency Departments: an Indonesian Study

Background: Triage process has rapidly developed in some countries in the last three decades in order to respond to the demand for emergency services by growing population and emergency health needs. However, this development does not appear to match in Indonesian hospitals. The triage process in Indonesia remains obscure.Purpose: This study aimed to describe triage process in Indonesia from a range of different perspectives.Methods: The research design of this study was descriptive qualitative using semistructured interviews of 12 policy makers or persons responsible from 5 different organizations which informed triage practice in Indonesia. The data were analyzed using a three step content analysis.Results: The result produced 3 themes. First, four steps of triage process ranging from receiving to prioritizing were reported as the triaging procedures in Indonesia which were almost similar to the International literature except for a re-triage step. Second,primary and secondary triage processes were also applied in all emergency departments in Indonesia. Last, no prolonged waiting time in Indonesia could be assumed whether the triage process was effective and efficient or it was only a quick process of sorting to rapidly increase the number of patients in the treatment rooms. Out of the themes, the result also indicated that the involvement of nurses in health policy development inIndonesia needed supportConclusion: Triage process in Indonesia still needs improvements. Patient\u27s re-triage and evaluating secondary triage should be given more frameworks in the future. An effective and efficient triage process in Indonesia will best manage the number of patients in the treatment rooms and therefore further observational researches on patterns and trends are needed. Moreover, including the role of nurses as policy makers in the curriculum of nursing undergraduate and post-graduate degrees would give nurses the evidence to seek out policy making positions in the futur

The Talking Points Tool: A Brief Intervention to Support Predoctoral Student and Faculty Advisor Communication

Excellent relationships between predoctoral students and faculty supervisors can lay the foundation for a satisfying degree program and productive future. Contrarily, poor relationships can frustrate both students and supervisors. We examined mentoring experiences focused on career development. Students desired enhanced career mentoring but were uncomfortable approaching their supervisors with these concerns. Faculty advisors reported willingness to support students’ career development, yet expected students to initiate those conversations. Responding to this communication disconnect, we developed a brief intervention to facilitate conversations—a Talking Points Tool (TPT). In this paper, we examine whether the TPT influenced students’ career conversations and development.Cockrell School of Engineerin

TRADE THROUGH FDI: investing in services

The type of relationship between different modes of trading services across international borders is of great interest, not only for the academic literature but also for the formulation trade liberalization offers under the GATS. Even more than for trade in goods, it is thus important to know whether cross-border trade and trade through commercial presence abroad act as complements or substitutes in services. The most commonly used analytical tool in the empirical analysis of this question is the gravity model of trade. This paper offers a consistent theoretical foundation for the application of the gravity model to services and to commercial presence, using a composite demand model with offers testable hypothesis about the complementary or substitutive relationship between different modes of supply. It further links the results to policy variables like market regulations which may act directly or implicitly as barriers to trade. Our empirical test for the sample of OECD countries over the decade 1994- 2004 yields robust complementary effects in the short-run, which is reinforced in the long-run by an increased potential for cross-border imports based on previous FDI inflows. A detailed analysis by individual service sectors highlights business, communication and financial services as showing the largest potential for cross-border trade when market regulations are reduced and when commercial presence increases.FDI, imports, services, panel data, substitution and complementary effects

Superpotentials from variational derivatives rather than Lagrangians in relativistic theories of gravity

The prescription of Silva to derive superpotential equations from variational derivatives rather than from Lagrangian densities is applied to theories of gravity derived from Lovelock Lagrangians in the Palatini representation. Spacetimes are without torsion and isolated sources of gravity are minimally coupled. On a closed boundary of spacetime, the metric is given and the connection coefficients are those of Christoffel. We derive equations for the superpotentials in these conditions. The equations are easily integrated and we give the general expression for all superpotentials associated with Lovelock Lagrangians. We find, in particular, that in Einstein's theory, in any number of dimensions, the superpotential, valid at spatial and at null infinity, is that of Katz, Bicak and Lynden-Bell, the KBL superpotential. We also give explicitly the superpotential for Gauss-Bonnet theories of gravity. Finally, we find a simple expression for the superpotential of Einstein-Gauss-Bonnet theories with an anti-de Sitter background: it is minus the KBL superpotential, confirming, as it should, the calculation of the total mass-energy of spacetime at spatial infinity by Deser and Tekin.Comment: Scheduled to appear in Class. Quantum Grav. August 200