Miracle-dz/UniFAR-FTUs huggingface dataset:
Adler function and hadronic contribution to the muon g-2 in a nonlocal chiral quark model

The behavior of the vector Adler function at spacelike momenta is studied in the framework of a covariant chiral quark model with instantonlike quark-quark interaction. This function describes the transition between the high-energy asymptotically free region of almost massless current quarks to the low-energy hadronized regime with massive constituent quarks. The model reproduces the Adler function and $V\ensuremath{-}A$ correlator extracted from the ALEPH and OPAL data on hadronic $\ensuremath{\tau}$ lepton decays, transformed into the Euclidean domain via dispersion relations. The leading order contribution from the hadronic part of the photon vacuum polarization to the anomalous magnetic moment of the muon, ${a}_{\ensuremath{\mu}}^{\mathrm{h}\mathrm{v}\mathrm{p}(1)}$, is estimated.
Strategic directions in object-oriented programming

This paper has provided an overview of the field of object-oriented programming. After presenting a historical perspective and some major achievements in the field, four research directions were introduced: technologies integration, software components, distributed programming, and new paradigms. In general there is a need to continue research in traditional areas: (1) as computer systems become more and more complex, there is a need to further develop the work on architecture and design; (2) to support the development of complex systems, there is a need for better languages, environments, and tools; (3) foundations in the form of the conceptual framework and other theories must be extended to enhance the means for modeling and formal analysis, as well as for understanding future computer systems.
Inviscid and viscous aerodynamics of dense gases

A numerical investigation of transonic and low-supersonic flows of dense gases of the Bethe–Zel'dovich–Thompson (BZT) type is presented. BZT gases exhibit, in a range of thermodynamic conditions close to the liquid/vapour coexistence curve, negative values of the fundamental derivative of gasdynamics. This can lead, in the transonic and supersonic regime, to non-classical gasdynamic behaviours, such as rarefaction shock waves, mixed shock/fan waves and shock splitting. In the present work, inviscid and viscous flows of a BZT fluid past an airfoil are investigated using accurate thermo-physical models for gases close to saturation conditions and a third-order centred numerical method. The influence of the upstream kinematic and thermodynamic conditions on the flow patterns and the airfoil aerodynamic performance is analysed, and possible advantages deriving from the use of a non-conventional working fluid are pointed out.
India's elderly-burden or challenge?

In my opinion, a serious researcher like Dr. Bali deserves the appreciation of readers for the timely volume which would be useful to sociologists, psychologists, gerontologists, planners, policy makers, social workers, medical and paramedical professionals as well as voluntary organisations involved in the welfare of the elderly. The publisher needs to be congratulated for the excellent get up of the book. A copy of the book is worth possessing.
Community Walking in People with Parkinson's Disease

People with Parkinson's disease often have walking difficulty, and this is likely to be exacerbated while walking in places in the community, where people are likely to face greater and more varied challenges. This study aims to understand the facilitators and the barriers to walking in the community perceived by people with Parkinson's disease. This qualitative study involved 5 focus groups (n = 34) of people with Parkinson's disease and their partners residing in metropolitan and rural regions in Queensland, Australia. Results found that people with PD reported to use internal personal strategies as facilitators to community walking, but identified primarily external factors, particularly the environmental factors as barriers. The adoption of strategies or the use of facilitators allows people with Parkinson's disease to cope so that participants often did not report disability.
Special functions from quantum canonical transformations

Quantum canonical transformations are used to derive the integral representations and Kummer solutions of the confluent hypergeometric and hypergeometric equations. Integral representations of the solutions of the nonperiodic three‐body Toda equation are also found. The derivation of these representations motivate the form of a two‐dimensional generalized hypergeometric equation which contains the nonperiodic Toda equation as a special case and whose solutions may be obtained by quantum canonical transformation.
Double-blind, randomised, placebo-controlled intervention trial to evaluate the effects of Bifidobacterium longum CECT 7347 in children with newly diagnosed coeliac disease

Interactions between the immune system and the intestinal microbiota may play a role in coeliac disease (CD). In the present study, the potential effects of Bifidobacterium longum CECT 7347 in children with newly diagnosed CD were evaluated. A double-blind, randomised, placebo-controlled trial was conducted in thirty-three children who received a capsule containing either B. longum CECT 7347 (109 colony-forming units) or placebo (excipients) daily for 3 months together with a gluten-free diet (GFD). Outcome measures (baseline and post-intervention) included immune phenotype of peripheral blood cells, serum cytokine concentration, faecal secretory IgA (sIgA) content, anthropometric parameters and intestinal microbiota composition. Comparisons between the groups revealed greater height percentile increases (P= 0·048) in the B. longum CECT 7347 group than in the placebo group, as well as decreased peripheral CD3+ T lymphocytes (P= 0·004) and slightly reduced TNF-α concentration (P= 0·067). Within-group comparisons of baseline and final values did not reveal any differences in T lymphocytes and cytokines in the placebo group, while decreased CD3+ (P =0·013) and human leucocyte antigen (HLA)-DR+ T lymphocytes (P =0·029) and slightly reduced TNF-α concentration (P= 0·085) were detected in the B. longum CECT 7347 group. Comparison between the groups showed that the administration of B. longum CECT 7347 reduced the numbers of the Bacteroides fragilis group (P= 0·020) and the content of sIgA in stools (P= 0·011) compared with the administration of placebo. Although this is a first exploratory intervention with limitations, the findings suggest that B. longum CECT 7347 could help improve the health status of CD patients who tend to show alterations in gut microbiota composition and a biased immune response even on a GFD.
SWSA-MT : Un Esquema de Memoria Caché para Ambientes Multihilo

En este trabajo presentamos un esquema de memoria caché de nivel 1 para ambientes multihilo, que consiste en una adaptación de la arquitectura SWSA (Shared-Way Set Associative) de banco compartido. Este nuevo esquema, que llamamos SWSA-MT (Shared-Way Set Associative MultiThreading), se adapta muy bien a los casos extremos (pocos o muchos hilos), ya que presenta una v́ıa de memorias privadas para cada hilo, y otra de memoria compartida entre todos los hilos, convirtiéndola en una opción muy adecuada para la técnica SMT (Simultaneous Multithreading), hoy implementada en los procesadores más avanzados de propósito general. Se realizaron simulaciones utilizando los benchmarks de procesamiento paralelo SPLASH-2 y la técnica de simulación por traza. Fueron considerados de dos a ocho hilos de ejecución. Se utilizó y modificó la herramienta Valgrind para la captura de las trazas. Se obtuvo una excelente performance para la organización propuesta, la cual fue comparada con las organizaciones de Correspondencia Directa y Asociativa por Conjuntos estándar.
Laparoscopic ureteral reimplantation in a renal transplant

We present what is to our knowledge, the first case of laparoscopic ureteral reimplantation reported in the renal transplant. The ureteral stenosis is one of the most difficult renal transplant complications to deal with. With the development of the endourological approach, this treatment has become the first treatment option for these patients. The patient is a 28-year-old female who received a renal allograft from a cadaver donor in 2008. Ureteral stenosis was diagnosed. The laparoscopic approach seems to be a good option over the open approach, with the benefits related with laparoscopic surgery.
How Today's Mentoring Relationships Can Influence Tomorrow's Physical Education

The purpose of this article is to describe effective functions that mentors can use to assist in both the personal and professional development of protégés. Mentors help their protégés in two primary areas: career development and psychosocial support. Career development functions are intended to advance the protégé's adjustments within the profession. Career development roles include: (1) patron, (2) coach, (3) protector, (4) challenger and (5) opportunity creator. Psychosocial support functions increase the protégé's self-identity, competence and affiliation with the school and profession. The psychosocial roles are: (1) friend, (2) role model, (3) counselor and (4) acceptor. Through effective mentoring, the current core of physical education teachers has the opportunity to leave a legacy guaranteeing quality physical education.
Close encounters in young stellar clusters: implications for planetary systems in the solar neighbourhood

The stars that populate the solar neighbourhood were formed in stellar clusters. Through N-body simulations of these clusters, we measure the rate of close encounters between stars. By monitoring the interaction histories of each star, we investigate the singleton fraction in the solar neighbourhood. A singleton is a star which formed as a single star, has never experienced any close encounters with other stars or binaries, or undergone an exchange encounter with a binary. We find that, of the stars which formed as single stars, a significant fraction is not singletons once the clusters have dispersed. If some of these stars had planetary systems, with properties similar to those of the Solar System, the planets' orbits may have been perturbed by the effects of close encounters with other stars or the effects of a companion star within a binary. Such perturbations can lead to strong planet-planet interactions which eject several planets, leaving the remaining planets on eccentric orbits. Some of the single stars exchange into binaries. Most of these binaries are broken up via subsequent interactions within the cluster, but some remain intact beyond the lifetime of the cluster. The properties of these binaries are similar to those of the observed binary systems containing extrasolar planets. Thus, dynamical processes in young stellar clusters will alter significantly any population of Solar System-like planetary systems. In addition, beginning with a population of planetary systems exactly resembling the Solar System around single stars, dynamical encounters in young stellar clusters may produce at least some of the extrasolar planetary systems observed in the solar neighbourhood.
Copper : A Retargetable System for Automatic Application-Level Checkpointing

Long-running computational science programs may need to execute for many weeks, but the machines on which they run may suffer hardware failures as frequently as once a day. Therefore, making such programs resilient to hardware failures has become a critical concern. Checkpoint-restart (CPR) is the usual mechanism for accomplishing this. In application-level checkpointing (ALC), the program is instrumented manually so that it can save its state periodically and restore its own state after failure. This mechanism is independent of the platform on which the program runs, but it requires modifying the application. An alternative is to use system-level checkpointing (SLC) systems like Condor, but SLC systems are tied to particular platforms and operating systems. This paper presents Copper, a novel system based on linktime program instrumentation and managed program execution that provides automatic application-level checkpointing (AALC). The mechanisms are retargetable, but the system is also completely automatic like traditional system-level checkpointing. In this paper, we describe the implementation and functionality of this system, evaluate its performance against that of a well-supported, production-quality SLC system, and demonstrate its retargetability by presenting performance results obtained on three distinct computing platforms.
RSV bronchiolitis and risk of wheeze and allergic sensitisation in the first year of life

Severe respiratory syncytial virus (RSV) infection has been hypothesised to be a risk factor for the development of allergy and asthma, but epidemiological studies in older children have been inconclusive. The current study hypothesises that the effect of RSV bronchiolitis might be most prominent during the first year after bronchiolitis. Forty-two infants had experienced RSV bronchiolitis severe enough to cause hospitalisation. For each child with RSV infection, two controls were acquired from a birth cohort and matched for date of birth and sex. All the children were followed prospectively and underwent a follow-up examination at a mean age of 1 yr, which included physical examination, and serum immunoglobulin (Ig) E tests for common food and inhaled allergens. Risk factors for the development of recurrent wheezing and IgE antibodies were analysed for the whole group of 126 children. A positive test for IgE antibodies was noted in 14 of 42 (33%) RSV children and in 2 of 84 (2.3%) children in the control group. RSV bronchiolitis was the most important risk factor for allergic sensitisation. Likewise, 13 children (15.5%) of the RSV group and three (3.6%) children of the control group suffered from recurrent wheezing, and RSV bronchiolitis posed a considerable risk for recurrent wheezing. Severe respiratory syncytial virus bronchiolitis during the first year of life is an important risk factor for the development of recurrent wheezing and sensitisation to common allergens during the subsequent year.
Behavioural Activation Self-Help to Improve Depression in People Living with Dementia: The PROMOTE Treatment Protocol

There is an increasing number of people living with dementia and depression, with support for people to live well with dementia becoming a global healthcare priority and seminal to the New Zealand Framework for Dementia Care (Ministry of Health, 2013). This paper overviews the clinical protocol for the PROMOTE self-help programme to inform the delivery of a written low intensity intervention based on behavioural activation for the treatment of depression and low mood in people with dementia. The primary aim of the programme is to decrease symptoms of depression and improve quality of life in people living with dementia. Support to the person living with dementia in the use of the PROMOTE programme is provided by an informal caregiver, who themselves receive guidance over the telephone by an appropriately trained mental health professional. This model of support and guidance represents a novel feature of the intervention, and one that potentially helps to increase access within the community.
Interactive Parallel Programming Using the Parascope Editor Interactive Parallel Programming Using the Parascope Editor

The ParaScope project is developing an integrated collection of tools to help scientiic programmers implement correct and eecient parallel programs. The centerpiece of this collection is the ParaScope Editor, an intelligent interactive editor for parallel Fortran programs. The ParaScope Editor reveals to users potential hazards of a proposed parallelization in a program. It also provides a variety of powerful interactive program transformations that have been shown useful in converting programs to parallel form. In addition, the ParaScope Editor supports general user editing through a hybrid text and structure editing facility that incrementally analyzes the modiied program for potential hazards. The ParaScope Editor is a new kind of program construction tool { one that not only manages text, but also presents the user with information about the correctness of the parallel program under development. As such, it can support an exploratory programming style in which users get immediate feedback on their various strategies for parallelization.
An improved Architecture for High-phase Resolution Phased Array Transmitters

—The paper introduces a frequency independent phase shifting technique suitable for RADAR, satellite and wireless telecommunications applications. The proposed phased array transmitter achieves a high degree of precision along with an arbitrary small phase step value. The theory governing the design of the phase shifter is thoroughly discussed and three prototypes operating in different bands reporting an rms phase error lower than 0.4 degrees are reported. The measurements are compared with theoretical results showing a perfect agreement. Key-Words: Antennae array, Phase Locked Loop (PLL), Phase shifter
Continuations and threads: Expressing machine concurrency directly in advanced languages

It is well known [Wand] that concurrency can be expressed within languages that provide a continuation type. However, a number of misconceptions persist regarding the relationship between threads and continuations. I discuss the proper relationship between these two objects, and present a model for directly expressing concurrency using continuations. The model is designed to support systems programming, and has several novel features: it is synchronous, preemptable, and fully virtualisable, allowing schedulers to be written by unprivileged users that are indistinguishable from top-level schedulers that actually control access to the hardware resources
Recognition on Grassmann manifolds via parametric modelling

Applicability of the standard Maximum Likelihood Estimation technique for utilising parametric models to real World applications has been a real hurdle due to the difficult calculation of normalising constant since decades. The aim of this paper is therefore to fill some gape by demonstrating a simple Maximum Likelihood Estimation (MLE) technique for classification on Grassmann manifolds sing the matrix-variate Bingham distributional model. The most challenging task in working with such high dimensional parametric models is the calculation of matrix based normalising constant. For calculating the values of normalising constants we propose some ad-hoc technique for approximating the values of normalising constants. These normalising constants are mostly represented by special functions, e.g., Hypergeometric functions, Confluent Hypergeometric functions and Bessel functions etc. We have approximated these special functions by Taylor series approximation and asymptotic series approximation methods, i.e by considering the first few terms of the series most important for calculating the numerical values of normalising constant. The calculated numerical value then boost the applicability of matrix-variate Bingham model for inferences via a simple Bayesian approach. Although these ad-hoc techniques does not have close-form solutions, but still they can produce very nice results for special cases of concentrated parameters.
FPGA design for multi-filtering techniques using flag-bit and flicker clock

Real time systems typically suffer from delay in data processing. This delay is caused by many reasons such as computational power, processor unit architecture, and synchronization signals in these systems. In order to increase the processing power, a new architecture and clocking technique is carried out in this paper hence the performance. This new architecture design called Embedded Parallel Systolic Filters (EPSF) would process data gathered from sensors and landmarks using a high density FPGA chip. The results show that EPSF architecture and bit-flag with a flicker clock perform significantly better in multiple input sensors signals under both continuous and interrupted conditions. Unlike the usual processing units in previous tracking and navigation systems used in robots, this system allows autonomous control of the robot through multiple techniques of filtering and processing strategy. Furthermore, it also offer a speedy performance that minimizing the delay about 50%.
Design principles governing the motility of myosin V

Significance Myosin V, a two-headed motor protein, ferries cellular cargo by walking hand-over-hand on actin filaments. Interplay between ATP-driven conformational changes in the heads and stress due to load produces a variety of stepping dynamics: The motor can step forward or backward, or “stomp,” where one head detaches and rebinds to the same site. We created an analytically solvable theory capturing all these behaviors, quantitatively matching a wide array of single-molecule experiments. We describe the structural and chemical design principles underlying the motor’s robust function, providing a guide for how bioengineering might alter its dynamics. The molecular motor myosin V (MyoV) exhibits a wide repertoire of pathways during the stepping process, which is intimately connected to its biological function. The best understood of these is the hand-over-hand stepping by a swinging lever arm movement toward the plus end of actin filaments. Single-molecule experiments have also shown that the motor “foot stomps,” with one hand detaching and rebinding to the same site, and back-steps under sufficient load. The complete taxonomy of MyoV’s load-dependent stepping pathways, and the extent to which these are constrained by motor structure and mechanochemistry, are not understood. Using a polymer model, we develop an analytical theory to describe the minimal physical properties that govern motor dynamics. We solve the first-passage problem of the head reaching the target-binding site, investigating the competing effects of backward load, strain in the leading head biasing the diffusion in the direction of the target, and the possibility of preferential binding to the forward site due to the recovery stroke. The theory reproduces a variety of experimental data, including the power stroke and slow diffusive search regimes in the mean trajectory of the detached head, and the force dependence of the forward-to-backward step ratio, run length, and velocity. We derive a stall force formula, determined by lever arm compliance and chemical cycle rates. By exploring the MyoV design space, we predict that it is a robust motor whose dynamical behavior is not compromised by reasonable perturbations to the reaction cycle and changes in the architecture of the lever arm.
Motility of Urease-Deficient Derivatives of Helicobacter pylori

ABSTRACT Early studies of a ureB mutant derivative of Helicobacter pylori had suggested that urease is needed for motility and that urease action helps energize flagellar rotation. Here we report experiments showing that motility is unaffected by deletion of ureA and ureB (urease genes) or by inactivation of ureB alone, especially if H. pylori strains used as recipients for transformation with mutant alleles are preselected for motility. This result was obtained with the strain used in the early studies (CPY3401) and also with 15 other strains, 3 of which can colonize mice. We conclude that urease is not needed for H. pylori motility.