Quantum Corrections to Newton's Law

We present a new approach to quantum gravity starting from Feynman's formulation for the simplest example, that of a scalar field as the representative matter. We show that we extend his treatment to a calculable framework using resummation techniques already well-tested in other problems. Phenomenological consequences for Newton's law are described.Comment: 7 pages, 1 figure; improved fig., refs;improved discussion;more discussion; proo

Concurrent Image Processing Executive (CIPE). Volume 1: Design overview

The design and implementation of a Concurrent Image Processing Executive (CIPE), which is intended to become the support system software for a prototype high performance science analysis workstation are described. The target machine for this software is a JPL/Caltech Mark 3fp Hypercube hosted by either a MASSCOMP 5600 or a Sun-3, Sun-4 workstation; however, the design will accommodate other concurrent machines of similar architecture, i.e., local memory, multiple-instruction-multiple-data (MIMD) machines. The CIPE system provides both a multimode user interface and an applications programmer interface, and has been designed around four loosely coupled modules: user interface, host-resident executive, hypercube-resident executive, and application functions. The loose coupling between modules allows modification of a particular module without significantly affecting the other modules in the system. In order to enhance hypercube memory utilization and to allow expansion of image processing capabilities, a specialized program management method, incremental loading, was devised. To minimize data transfer between host and hypercube, a data management method which distributes, redistributes, and tracks data set information was implemented. The data management also allows data sharing among application programs. The CIPE software architecture provides a flexible environment for scientific analysis of complex remote sensing image data, such as planetary data and imaging spectrometry, utilizing state-of-the-art concurrent computation capabilities

Intrinsic Charm Flavor and Helicity Content in the Proton

Contributions to the quark flavor and spin observables from the intrinsic charm in the proton are discussed in the SU(4) quark meson fluctuation model. Our results suggest that the probability of finding the intrinsic charm in the proton is less than 1%. The intrinsic charm helicity is small and negative, $\Delta c \simeq -(0.003\sim 0.015)$. The fraction of the total quark helicity carried by the intrinsic charm is less than 2%, and c_\up/c_\dw=35/67.Comment: 4 pages, 2 tables (revised version

Concurrent Image Processing Executive (CIPE)

The design and implementation of a Concurrent Image Processing Executive (CIPE), which is intended to become the support system software for a prototype high performance science analysis workstation are discussed. The target machine for this software is a JPL/Caltech Mark IIIfp Hypercube hosted by either a MASSCOMP 5600 or a Sun-3, Sun-4 workstation; however, the design will accommodate other concurrent machines of similar architecture, i.e., local memory, multiple-instruction-multiple-data (MIMD) machines. The CIPE system provides both a multimode user interface and an applications programmer interface, and has been designed around four loosely coupled modules; (1) user interface, (2) host-resident executive, (3) hypercube-resident executive, and (4) application functions. The loose coupling between modules allows modification of a particular module without significantly affecting the other modules in the system. In order to enhance hypercube memory utilization and to allow expansion of image processing capabilities, a specialized program management method, incremental loading, was devised. To minimize data transfer between host and hypercube a data management method which distributes, redistributes, and tracks data set information was implemented

The Micro-political nature of implementing, supporting and coping with organisational change in a professional football club academy

Aim: To investigate the experiences of individuals employed within the academy of a professional football club during a period of organisational change. Key Research Questions: RQ1: How does organisational change impact individual’s day-to-day working practices? RQ2: How do individuals make sense of their actions and behaviours and the actions and behaviours of others during organisational change, and why? RQ3: What impact does organisational change have on the professional working relationships between individuals? Theoretical Background & Literature Review: Investigations into organisational change in sport have only recently received scholarly attention (Welty Peachey & Bruening, 2012). Indeed, professional football, in particular, is dependent on consistent success, with the environment in which employees have to practice characterised by significant change (Wagstaff, Gilmore & Thelwell, 2016). Consequently, investigations into understanding organisational change within professional football appear warranted. From a theoretical perspective, micro-politics has been advocated as a useful framework to understand organisational life within a variety of domains (Gibson & Groom, 2018). Furthermore, previous research (i.e. Munyon et al., 2015) has portrayed the political nature of organisational life and the political skill required by employees to effectively work within and survive in such environments. However, investigations into the micro-political nature of implementing, managing and coping with organisational change in professional football is lacking (Gibson & Groom, 2018). Methodology: Gibson and Groom (2018) have called for in-depth, contextually sensitive methodological approaches to understand organisational change. Such methodological approaches may provide a comparative, relational understanding of interactions within the football environment. In light of the above, an interpretivist approach was adopted to allow for a platform to explore and understand how individuals interpret and make sense of the interrelated, micro-political nature of organisational change in the academy of a professional football club. Data Collection: Following institutional ethical approval, data were collected at the case study site (Alder Football Club) using semi-structured interviews (n=16) with a recently employed Head of Professional Development Phase, a recently promoted Academy Manager, a Head of Foundation Phase, and an Academy Coach, ranging from 60-90 minutes each in length. In addition, ethnographic observational data were collected over three seasons by the primary researcher who was employed as the Under 16’s Academy Coach at Alder Football Club. Ethnographic observational data consisted of field notes, informal and formal meetings, in-house coach development sessions, player assessment evenings, academy training sessions and academy fixtures. Data Analysis: All interview and ethnographic data were subject to a process of thematic analysis using QSR NVIVO 11. A micro-political theoretical framework was used to guide the analysis of all data sets through an iterative process. Specifically, notions of vulnerability, professional self-interests, micro-political literacy (Kelchtermans, 1996, 2005) and social group identity were included in the framework. Findings: Findings highlighted the micro-political nature of changes being made to the image, branding and identity of Alder FC following the appointment of a new Chairman, Board of Directors and 1st Team Manager. Specifically, the creation of a new vision and strategy for Alder FC, aimed at portraying the club’s commitment to developing young players through the academy, evidenced the vulnerable nature of implementing and coping with the changes being made and the micro-political nature of successfully responding to the changes being made. Specifically, issues around increased scrutiny from senior colleagues, both increased and decreased feelings of vulnerability (dependent on the individual’s place within the organisational structure), staff turnover, moral conflict, the construction and destruction of professional working relationships, and the creation of a social group identity designed to support the successful implementation of change became pertinent during the change process at Alder FC. Conclusion: This study is the first to provide novel empirical and theoretical insights into the role that micro-political literacy, micro-political action and employment vulnerability play during periods of organisational change. In considering the applied nature of the findings; individuals tasked with implementing organisational change should consider the role that ‘identity’ plays from an organisational (identity of the football club) and a group (identity of the department i.e. 1st team or academy) perspective. From a departmental perspective, the construction of a social group identity can enhance collaboration, inform decision-making and decrease the potential for conflict amongst employees. However, it must be noted that individual identities of employees must also be congruent with the social group identity of the department. Such findings may be utilised to inform the education and development of practitioners tasked with both implementing and supporting organisational change in professional football

The decay eta_c^prime -> eta_c pi pi

It is pointed out that the decay of the recently observed charmonium eta_c^prime resonance, eta_c^prime -> eta_c pi pi is simply related to the well studied decay psi^prime -> J/psi pi pi and can thus be used for absolute normalization of other decay modes of the eta_c^prime. The total rate of the discussed decay should be approximately three to four times the corresponding rate for the psi^prime$ resonance making the channel with charged pions the most probable exclusive decay mode of the eta_c^prime with the branching ratio in the range 5-10 %.Comment: 5 pages, references adde

The importance of appearing trustworthy in the workplace: Performance analysts’ perspectives

The discipline of performance analysis is founded upon the collection and analysis of objective and reliable data to support the coaching process. While research has begun to identify the potential importance of trust in applied sporting environments, there remains a paucity of inquiry that seeks to explicitly investigate trustworthiness in the work of performance analysts. To redress this situation Jisc online survey data was collected from performance analysts (n = 88, age: 37 ± 11 years, experience: 8 ± 6 years) practising across sporting contexts and geographic areas. Findings showed that: (1) appearing trustworthy to a range of working others was an important goal for performance analysts, (2) trustworthiness was considered essential for building positive working relationships, respect and perceptions of role-related competence (3) being perceived as trustworthy can generate desirable as well as help to avoid undesirable working conditions, including career progression and employment security, (4) analysts often seek to influence others perceptions of their trustworthiness by demonstrating important characteristics such as technical and tactical knowledge, being friendly and approachable, being punctual and hardworking, and evidenced-based, (5) an important facet of this was, often in conjunction with the coaching staff, concealing known information, particularly to athletes regarding poor performance to avoid psychological damage or where the data did not fit the coach’s approach, and (6) most performance analysts suggested the professional preparation and development of performance analysts needs to place greater emphasis on facilitating social sensibilities that practitioners can use to enhance perceptions about their workplace trustworthiness. The findings of this study generate new knowledge regarding the social features of performance analysis work, thus contributing to a growing critical social analysis of sport work in performance environments, as well as raising important practical implications for those responsible for educating the performance analysis workforce

The finite-width Laplace sum rules for 0++0^{++} scalar glueball in instanton liquid model

In the framework of a semi-classical expansion for quantum chromodynamics in the instanton liquid background, the correlation function of the $0^{++}$ scalar glueball current is given. Besides the pure classical and quantum contributions, the contributions arising from the interactions between the classical instanton fields and quantum gluons are taken into account as well. Instead of the usual zero-width approximation for the resonance, the Brite-Wigner form for the spectral function of the finite-width resonance is adopted. The family of the Laplace sum rules for the scalar glueball in quantum chromodynamics with and without light quarks are studed. A consistency between the subtracted and unsubtracted sum rules are very well justified, and the values of the mass, decay width, and the coupling to the corresponding current for the $0^{++}$ resonance in which the glueball fraction is dominant, are obtained.Comment: 6 figure

Effect of hyperon bulk viscosity on neutron-star r-modes

Neutron stars are expected to contain a significant number of hyperons in addition to protons and neutrons in the highest density portions of their cores. Following the work of Jones, we calculate the coefficient of bulk viscosity due to nonleptonic weak interactions involving hyperons in neutron-star cores, including new relativistic and superfluid effects. We evaluate the influence of this new bulk viscosity on the gravitational radiation driven instability in the r-modes. We find that the instability is completely suppressed in stars with cores cooler than a few times 10^9 K, but that stars rotating more rapidly than 10-30% of maximum are unstable for temperatures around 10^10 K. Since neutron-star cores are expected to cool to a few times 10^9 K within seconds (much shorter than the r-mode instability growth time) due to direct Urca processes, we conclude that the gravitational radiation instability will be suppressed in young neutron stars before it can significantly change the angular momentum of the star.Comment: final PRD version, minor typos etc correcte

Design of the Spitzer Space Telescope Heritage Archive

It is predicted that Spitzer Space Telescope’s cryogen will run out in April 2009, and the final reprocessing for the cryogenic mission is scheduled to end in April 2011, at which time the Spitzer archive will be transferred to the NASA/IPAC Infrared Science Archive (IRSA) for long-term curation. The Spitzer Science Center (SSC) and IRSA are collaborating to design and deploy the Spitzer Heritage Archive (SHA), which will supersede the current Spitzer archive. It will initially contain the raw and final reprocessed cryogenic science products, and will eventually incorporate the final products from the Warm mission. The SHA will be accompanied by tools deemed necessary to extract the full science content of the archive and by comprehensive documentation