Evidence for the Validity of the Berry-Robnik Surmise in a Periodically Pulsed Spin System

We study the statistical properties of the spectrum of a quantum dynamical system whose classical counterpart has a mixed phase space structure consisting of two regular regions separated by a chaotical one. We make use of a simple symmetry of the system to separate the eigenstates of the time-evolution operator into two classes in agreement with the Percival classification scheme \cite{Per}. We then use a method firstly developed by Bohigas et. al. \cite{BoUlTo} to evaluate the fractional measure of states belonging to the regular class, and finally present the level spacings statistics for each class which confirm the validity of the Berry-Robnik surmise in our model.Comment: 15 pages, 9 figures available upon request, Latex fil

Educational strategies in data journalism: A comparative study of six European countries

The article explores training programs in higher education with regard to data journalism from a multi-national perspective. By carrying out a comparative analysis in six European countries (Germany, Switzerland, the Netherlands, Italy, Poland, and the United Kingdom), it covers different models of media systems and journalistic cultures envisaged by Hallin and Mancini. Based on a desk review and in-depth interviews with instructors of data journalism in each country, the article identifies different approaches to the way data journalism is taught. In Europe, such programs are offered by four types of organizations: academic, vocational, professional, and civic. The role played by those organizations can be explained as a result of the peculiarities of national media systems. But there are also commonalities, for example, non-academic institutions (such as the European Journalism Center or the Center for Investigative Journalism) and major international news outlets (such as The Guardian and The New York Times) seem to take over a leading role in all of the analyzed countries. Generally speaking, data journalism education appears to be a very young discipline that frequently neglects fundamental journalistic topics such as ethical issues, transparency, accountability, and responsiveness although they are crucial in a journalistic field as sophisticated tools to reveal hidden aspects of reality

Empathy in paramedic practice: an overview

Background: Although inconsistently defined, empathy is generally considered to be the understanding of another person\u27s reactions, thoughts, feelings and problems and being able to relay this sense of understanding back to the individual. Empathy in healthcare is associated with improved communication, reduced stress, lower complication rates and improved clinical outcomes. Low empathy is associated with decreased patient satisfaction, and provider burnout. Aim: The aim of this article is to provide an overview of empathy in paramedic practice, and to outline several potential solutions to improve empathy levels among paramedics and paramedic students. Methods: We conducted unstructured, non-systematic searches of the literature in order to inform an overview of the literature. An overview is a summary of the literature that attempts to survey the literature and describe its characteristics. We thematically structured the results of these searches under the following headings: empathy in paramedic practice, empathy and burnout, and strategies to improve empathy levels. Discussion: The literature demonstrates that paramedic students have lower empathy scores towards substance users and mental health emergencies, and this may affect future practice as a paramedic. The burden of emotional work in paramedic practice and coping strategies that paramedics develop may also be contributory factors in this lower empathy. There appears to be a relationship between empathy and burnout, with most studies suggesting an inverse relationship. Empathy is an interpersonal skill that can be learned and improved upon through methods such as reflection and simulation. Conclusion: Empathy in paramedic practice is complex, and understudied. Although some evidence exists to suggest that paramedic students have variable empathy levels towards certain patients, and that these empathy scores can decline over time, there is a distinct lack of research into empathy in practicing paramedics, and this requires further attention. In particular, its relationship to patient care, paramedic burnout, and wellbeing require investigation. Several strategies to teach empathy exist and these can be considered by educators

Ground state potential energy surfaces and bound states of M-He dimers (M=Cu,Ag,Au): A theoretical investigation

We present an ab initio investigation on the ground state interaction potentials [potential energy surface (PES)] between helium and the group 11 metal atoms: copper, silver, and gold. To the best of our knowledge, there are no previous theoretical PESs proposed for Cu-He and Au-He, and a single one for Ag-He [Z. J. Jakubek and M. Takami, Chem. Phys. Lett. 265, 653 (1997)], computed about 10 years ago at MP2 level and significantly improved by our study. To reach a high degree of accuracy in the determination of the three M-He potentials (M=Cu,Ag,Au), we performed extensive series of test computations to establish the appropriate basis set, the theoretical method, and the computational scheme for these systems. For each M-He dimer we computed the PES at the CCSD(T) level of theory, starting from the reference unrestricted Hartree-Fock wave function. We described the inner shells with relativistic small core pseudopotentials, and we adopted high quality basis sets for the valence electrons. We also performed CCSDT computations in a limited set of M-He internuclear distances, adopting a medium-sized basis set, such as to define for each dimer a CCSD(T) to CCSDT correction term and to improve further the quality of the CCSD(T) interaction potentials. The Cu-He complex has minimum interaction energy (E(min)) of -28.4 mu hartree at the internuclear distance of 4.59 A (R(min)), and the short-range repulsive wall starts at 4.04 A (R(E=0)). Quite interestingly, the PES of Ag-He is more attractive (E(min)=-33.8 mu hartree) but presents nearly the same R(min) and R(E=0) values, 4.60 and 4.04 A, respectively. The interaction potential for Au-He is markedly deeper and shifted at shorter distances as compared to the lighter complexes, with E(min)=-69.6 mu hartree, R(min)=4.09 A and R(E=0)=3.60 A. As a first insight in the structure of M-He(n) aggregates, we determined the rovibrational structure of the three M-He dimers. The Cu-He and Ag-He potentials support just few rotational excitations, while the Au-He PES admits also a bound vibrational excitation

IDENTIFIKASI FITOPLANKTON DI PERAIRAN SUNGAI PEPE SEBAGAI SALAH SATU ANAK SUNGAI BENGAWAN SOLO DI JAWA TENGAH

The research about identification of phytoplanktons in the Pepe River has been conducted on January until February 2016. The research aimed to discover the types and diversity of phytoplanktons in the Pepe River. It was using the quantitative explorative research method by surveying technique. For the sampling process was using the purposive sampling. It was dividing the river becomes 2 stations namely station A and station B. The identification of the phytoplankton were 15 genus of 5 main divisions which were Cyanophyta (1 genus), Crysophyta (1 genus), Bacillariophyta (5 genus), Euglenophyta (2 genus), and Chlorophyta (6 genus). The abundance (N) of phytoplankton was about 87cells/littre to 90cells/littre. The diversity index (H’) was about -1,43 to -1,71 means the community of species was not stable. The Evennes index (E) was about -0,59 to -0,71 means the evennes of species was low. The dominating index (D) was about 0,32 to 0,21 means that all of species in the station was no varies. It means that the Pepe River needs attention to reduce the impact of environmental pollution