Correlation Functions in the Two-dimensional Ising Model in a Magnetic Field at T=TcT=T_c

The one and two-particle form factors of the energy operator in the two-dimensional Ising model in a magnetic field at $T=T_c$ are exactly computed within the form factor bootstrap approach. Together with the matrix elements of the magnetisation operator already computed in ref.\,\cite{immf}, they are used to write down the large distance expansion for the correlators of the two relevant fields of the model.Comment: 18 pages, latex, 7 table

Nuclear Matter Properties in Derivative Coupling Models Beyond Mean - Field Approximation

The structure of infinite nuclear matter is studied with two of the Zimanyi - Moszkowski (ZM) models in the framework of a relativistic approximation which takes into account Hartree terms and beyond and is compared with the results which come out of the relativistic Hartree - Fock approach in the linear Walecka model. The simple treatment applied to these models can be used in substitution to the more complicated Dirac - Brueckner - Hartree - Fock method to perform future calculations in finite nuclei.Comment: 11 pages including 1 table, 1 figure (available upon request

Asymptotic factorisation of form factors in two-dimensional quantum field theory

It is shown that the scaling operators in the conformal limit of a two-dimensional field theory have massive form factors which obey a simple factorisation property in rapidity space. This has been used to identify such operators within the form factor bootstrap approach. A sum rule which yields the scaling dimension of such operators is also derived.Comment: 11 pages, late

Finite temperature results on the 2d Ising model with mixed perturbation

A numerical study of finite temperature features of thermodynamical observables is performed for the lattice 2d Ising model. Our results support the conjecture that the Finite Size Scaling analysis employed in the study of integrable perturbation of Conformal Field Theory is still valid in the present case, where a non-integrable perturbation is considered.Comment: 9 pages, Latex, added references and improved introductio

SPIRITUAL LEADERSHIP AND JOB SATISFACTION OF TEACHING AND NON-TEACHING PERSONNEL OF PARTIDO STATE UNIVERSITY

School leadership is tasked to help faculty developed their potentials so that they could contribute to the attainment of the objectives of the university. Failure of the leadership to inspire its people would result to low performance of the institution. This study analyzed the correlation between spiritual leadership and job satisfaction of the teaching and non-teaching personnel of Partido State University.The study used descriptive-correlational research design to describe the relationship between spiritual leadership and job satisfaction. The Data were treated through Statistical Package for Social Sciences (SPSS). Focused Group Discussion (FGD) was used to verify and gather additional data from the respondents. The researchers used standardized questionnaires on Spiritual Leadership and Job Satisfaction. The respondents of the study were the 81 faculty members and 63 non-teaching personnel of Partido State University.Findings of the study revealed that the extent of spiritual leadership in Partido State University was high and the job satisfaction was slightly satisfying. The results of the t-test revealed that among the seven dimensions of Spiritual Leadership altruistic love and productivity were found to be significantly different between the teaching and the non-teaching personnel. Furthermore, Spiritual Leadership was found to have a weak correlation to job satisfaction of the teaching and non-teaching personnel of Partido State University. The university officials should continue reaching out to its employees and communicate clearly the directions of the institution.  Furthermore, the fair and just working environment should be strengthened so that, it would be felt by all employees. Enough support should be given to all employees based on their needs to increase their productivity. Spiritual leadership should be strengthened to promote healthy working environment and increase job satisfaction among employees. &nbsp

Development and Testing of a High Resolution PET Detector for Prostate Imaging

According to the American Cancer Society one in six men will be diagnosed with prostate cancer in their lifetime. Current methods for screening of prostate cancer including various PSA blood tests, as well as the digital rectal exam, are unreliability while current imaging modalities clinically employed (US, CT, MRI) are unable to localize intraprostatic cancer(s). Consequently, diagnosis via core needle biopsy is problematic and a game of chance at best. Therefore, in response to new radiopharmaceuticals applicable to both internal and external prostate cancer visualization and localization, novel prostate specific nuclear medical imagers are being developed.;The first prototype of a compact prostate specific PET detector utilizing silicon photomultiplier (SiPM) technology has been developed and tested at West Virginia University. The compact detector is proposed as an endorectal probe placed proximally to the rectal wall/prostate interface and operating in coincidence with one or more externally mounted large area gamma detectors or in tandem with a clinical whole body PET scanner. To ensure high reconstruction resolution, the scintillation array of the compact detector will be coupled to SiPMs on both axial ends in a dual ended readout approach. Such an approach allows for the extraction of continuous depth of interaction (DOI) information thus minimizing the effects of parallax error and providing nearly isotropic and uniform spatial resolution throughout the entire detector field of view (FOV).;Two compact DOI based prototype detectors were developed and tested. While both utilize pixelated LYSO scintillation crystal arrays, the first has a crystal pitch of 1.0 mm and is coupled to SensL SiPMs, while the second has a crystal pitch of 0.7mm and is coupled to Hamamatsu SiPMs. Initial proof of concept studies were preformed using the SensL based detector while more extensive and systematic studies were preformed using the Hamamatsu based detector. Ultimately, when averaged over all crystals and all depths the Hamamatsu based detector achieved a depth of interaction resolution of 0.78+/-0.09 mm FWHM and an energy resolution of 13.2+/-0.7 % FWHM. Validation studies with regards to the efficacy of incorporating DOI information extracted from a small compact DOI based PET detector module into image reconstruction algorithms were also preformed

Ranking with social cues: Integrating online review scores and popularity information

Online marketplaces, search engines, and databases employ aggregated social information to rank their content for users. Two ranking heuristics commonly implemented to order the available options are the average review score and item popularity-that is, the number of users who have experienced an item. These rules, although easy to implement, only partly reflect actual user preferences, as people may assign values to both average scores and popularity and trade off between the two. How do people integrate these two pieces of social information when making choices? We present two experiments in which we asked participants to choose 200 times among options drawn directly from two widely used online venues: Amazon and IMDb. The only information presented to participants was the average score and the number of reviews, which served as a proxy for popularity. We found that most people are willing to settle for items with somewhat lower average scores if they are more popular. Yet, our study uncovered substantial diversity of preferences among participants, which indicates a sizable potential for personalizing ranking schemes that rely on social information.Comment: 4 pages, 3 figures, ICWS

Integrable structures in LGTs near the deconfinement transition

In this contribution we review some recent results about the emergence of 2D integrable systems in 3D Lattice Gauge Theories near the deconfinement transition. We focus on some concrete examples involving the flux tube thickness, the ratio of k-string tensions and Polyakov loops correlators in various models.Comment: 8 pages, Poster contribution to the XXVII International Symposium on Lattice Field Theory, July 26-31, 2009, Peking University, Beijing, Chin

Living Labs and Partnerships for Progress: How Universities can Drive the Process towards the Sustainable City

Universities can play an active role in facilitating the deployment at a wide scale of the sustainability concept, strictly cooperating with public-private institutions and civil society. Following this path, the University of Genoa, Italy, decided to transform its Savona Campus into a Living Lab aimed at creating a model of a sustainable urban district, to be replicated at the city level with specific implementation projects. Different actions on sustainable energy, smart environment and social health & wellbeing have been deployed: energy efficiency interventions, smart grid connected to a zero-emission building, electrical mobility and outdoor sport activities. All the projects have been developed with the active involvement and the empowerment of the Campus community (students and faculty) and thanks to important collaborations with local public institutions and industrial companies. The main partnerships towards the achievements of sustainability goals are with the Italian Electricity company, Enel S.p.A. and with the Savona Municipality, which enabled the extension of the Smart City experimentation to Savona population. These projects are constantly promoted and disseminated to university students during lessons, to visiting schools and civil society during specific events on sustainability topics inside the city

Dynamical nature of the nuclear pseudospin and its isospin asymmetry

Pseudospin symmetry in nuclei is investigated by solving the Dirac equation with Woods-Saxon scalar and vector radial potentials. We relate the pseudospin interaction with a pseudospin-orbit term in a Schroedinger-like equation for the lower component of the Dirac spinor. We show that this term gives a large contribution to the energy splittings of pseudospin partners, so that the near pseudospin degeneracy arises from a significant cancellation among the different terms in that equation. This is a manifestation of the dynamical character of this symmetry in the nucleus. We analyze the isospin dependence of the pseudospin symmetry in a nuclear isotope chain by including a vector-isovector potential V_rho and a Coulomb potential and conclude that V_rho gives the main contribution to the observed pseudospin isospin asymmetry.Comment: 4 pages, 2 figures, uses World Scientific style file. Contribution presented at the VIII International Workshop on Hadron Physics, Bento Goncalves, RS, Brazil, April 14-19, 2002. To be published by World Scientific in the proceedings of the "International Workshop on Hadron Physics 2002