bluuebunny/crossref_metadata_2025 huggingface dataset:
Accuracy of the Region of Limb Stability in Predicting Risk for Lower Limb Injury
Authors: FEIGENBAUM LUIS A. , GAUNAURD IGNACIO A. , KIM KYOUNG JAE , RAYA MICHELE A. , RUIZ JEFFREY T. , RAPICAVOLI JULIA , BEST THOMAS M. , KAPLAN LEE , GAILEY ROBERT S.
Published: April 2020

Purpose

This study aimed to determine whether a measure of lower limb segment stability derived from body-worn inertial measurement units can predict risk for lower limb musculoskeletal injury in Division I Collegiate Football Players (D1CFP).

Methods

The region of limb stability (ROLS) values were collected in a cohort of D1CFP during preseason. ROLS is a measure of knee joint stability, defined by thigh and shank excursion (cm2) in the anterior–posterior and medial–lateral direction during single limb stance. The ROLS symmetry index (SI) (%) is the ratio between lower limb ROLS values where 100% suggests absolute symmetry.

Results

One-hundred and four D1CFP participated in this study and were divided into two groups: 1) no previous lower limb injury or no in-season injury (n = 70, “noninjured group”) and 2) no previous lower limb injury, but in-season injury requiring surgery (n = 34, “injured group” group). The mean ± SD ROLS SI was 82.86% ± 14.75% and 65.58% ± 16.46% for the noninjured and injured group, respectively. Significant differences in ROLS SI were found between groups (P < 0.001). The ROLS SI demonstrated an area under the curve of 0.8 (P < 0.001; 95% confidence interval = 0.71–0.88) with an SE of 0.04, indicating that the ROLS SI has good predictive accuracy in detecting those healthy D1CFP at risk for lower limb injury resulting in surgery.

Conclusion

The ROLS SI was found to have good predictive accuracy in detecting individuals at risk for injury that were healthy and asymptomatic during preseason testing. Increase in thigh and shank excursions and/or decrease in SI between lower limbs may be a predictor of risk for future injury.
Effects of Cognitive Training and Exergaming in Pediatric Cancer Survivors—A Randomized Clinical Trial
Authors: BENZING VALENTIN , SPITZHÜTTL JANINE , SIEGWART VALERIE , SCHMID JÜRG , GROTZER MICHAEL , HEINKS THEDA , ROEBERS CLAUDIA M. , STEINLIN MAJA , LEIBUNDGUT KURT , SCHMIDT MIRKO , EVERTS REGULA
Published: April 2020

Purpose

Although most pediatric cancer patients survive, those who undergo anticancer treatments like chemotherapy and/or radiotherapy are at a high risk for late effects, such as cognitive deficits. To counteract these deficits, feasible and effective interventions are needed. The aim of this study was to compare the effects of working memory training, exergaming, and a wait-list control condition on cognitive functions in pediatric cancer survivors.

Methods

In a parallel-group randomized trial, 69 pediatric cancer survivors aged 7–16 yr (mean = 11.35, SD = 3.53) were randomly assigned to 8-wk working memory training, exergaming, or a wait-list control group. Each training course consisted of three 45-min training sessions per week. The primary outcome comprised the core executive functions (visual working memory, inhibition, switching), and the secondary outcomes included other cognitive domains (intelligence, planning, memory, attention, processing speed), motor abilities, and parent rating on their children’s executive functions. Assessments were conducted both before and immediately after the interventions, and at 3-month follow-up.

Results

Linear mixed models revealed that participants in the working memory training group showed a linear improvement in visual working memory after training and at follow-up compared with the control group. No other intervention effects of either type of training could be detected.

Conclusion

This study presents evidence that working memory training improves visual working memory in pediatric cancer survivors. Results show that near-transfer, but no far-transfer effects can be expected from working memory training. Multiple-component interventions tailored to fit the individual’s cognitive profile are needed to best support cognitive development after cancer and its treatment.
Measurement of the 234U(n,f) cross section in the energy range between 14.8 and 17.8 MeV using Micromegas detectors
Authors: Kalamara Antigoni , Chasapogloou S. , Michalopoulou V. , Stamatopoulos A. , Eleme Z. , Kokkoris M. , Lagoyannis A. , Patronis N. , Vlastou R.
Published: April 2020

Neutron induced fission cross sections of actinides present special interest, since they lead to the design optimization of new generation reactors (Generation IV) as well as Accelerator Driven Systems (ADS). In the present work, the 234U(n,f) cross section was measured for which only a few available discrepant data exist in literature leading to poor evaluations. More specifically, four irradiations were performed at the 5.5 MV Tandem Accelerator Laboratory of NCSR “Demokritos” using quasi-monoenergetic neutrons produced by the 3H(d,n)4He reaction in the 14.8-19.2 MeV energy range. The 234U(n,f) cross section was measured relatively to the 235U(n,f) and 238U(n,f) reference ones and in order to perform the in-beam measurements for each of the actinide targets (234U, 238U, 235U), a Micromegas detector was used to record the fission fragments. The target-detector pairs were placed in an Al chamber filled with a Ar:CO2 (in 80:20 volume fraction) gas mixture at atmospheric pressure and temperature. The efficiency of the Micromegas detectors was estimated by Monte-Carlo simulations using the GEF and FLUKA codes. In addition, a detailed study of the neutron energy spectra was carried out by coupling both NeuSDesc and MCNP5 codes in order to take into account and correct for the contribution of low energy parasitic neutrons in the fission yields.
INCLUSIVE PRODUCTION OF INTERMEDIATE MASS FRAGMENTS IN 20Ne+Ag,Au INTERACTIONS AT 20-60 MeV/nucleon
Authors: Papadakis N. H. , Et al. -
Published: April 2020

Energy spectra and angular distributions of intermediate mass fragments were measured at 20, 30, 40, 50 and 60 MeV/nucleon incident energies. Assuming two prevailing origins, fragmentation and evaporation (or fission), the measured energy spectra and angular distributions are reproduced by emission from two moving sources. The dependence of the parameters extracted for the sources on the fragment charge and on the incident energy is discussed. The distinctive role of fission in the case of the gold target is stressed. Xuclear fragmentation cross sections deduced from the moving source analysis are given and discussed for the two systems.
STUDY OF NUCLEON CORRELATIONS IN HEAVY NUCLEI WITH HIGH ENERGY ELASTIC ELECTRON SCATTERING
Authors: Vellidis C. E. , Frois B. , Goutte D. , Papadakis N. , Papanicolas C. N. , Vodinas N. , Williamson S. E.
Published: April 2020

During the last decade the detailed analysis of several observables and especially of electron scattering data has shown conclusively the presence of short-range nucleon correlations. As a result the degree to which the shape and amplitude of a correlated wave function can be approximated by an independent particle wave function has emerged as a question of fundamental importance. A presentation will be given below of an experiment that will be performed at the Bates Linear Accelerator Center attempting to study this question. The elastic cross-section ratios from 208,207,206Pb,205Ti(e,e) will be measured with high accuracy up to momentum transfers of 3.4 fm^-1 in order to study the influence of correlations on the shape of the 3s1/2 proton wave function. The purpose, motivation and main aspects of the new research will be explained and the experimental considerations together with the running scenario for the experiment will be presented.
HIGH SPIN STRUCTURE OF 173Os
Authors: Vlastou R. , Papadopoulos C. T. , Kalfas C. A. , Kossionides S. , Hildingsson L. , Klamra W. , Lindbland Th. , Linden C. G. , Wyss R.
Published: April 2020

High-spin states in 173Os have been studied by γ-γ coincidence measurements following the 146Nd(32S,5n)173Os reaction. Four main sequences have been identified as the two signature branches of the bands built an the [642]5/2+ and [523]5/2- Nilsson states. Multi-polarity assignements have been derived utilizing the directional correlation (DCO) ratios aa well as the anisotropies of the γ-rays. B(M1)/B(E2) ratios have also been extracted to deduce farther information an the detailed structure of the bands
THE 19/2- g-FACTOR IN 39K USING A TRANSIENT FIELD-FUSION REACTION TECHNIQUE
Authors: Pakou A. , Brandolini F. , Bazzacco D. , Pavan P. , Rossi-Alvarez C. , Maglione E. , Depoli M. , Ribas R.
Published: April 2020

The magnetic moment of the 19/2- state in 39K has been measured by the transient field technique. The state was excited by the inverse reaction 12C(32S,pa)39K and the recoil nucleus traversed a thin Gd foil. Its absolute g-factor, g= 0.35(3), was obtained by an internal calibration, which makes use of the magnetic moment of the 15/2+ state in 41Ca also excited in the same reaction. The experimental result agrees well within shell model predictions.
THE "COSH" OR SYMMETRIZED WOODS-SAXON NUCLEAR POTENTIAL
Authors: Grypeos M. E. , Lalazissis G. A. , Massen S. E. , Panos C. P.
Published: April 2020

The so-called "cosh" or symmetrized Woods-Saxon potential which has been used in nuclear physics is discussed and certain comments are made regarding its form-factor, depth and radius. A rough estimate of its parameters is also attempted by using various possibilities. This is done by considering either a number of individual nuclei or by least squares fitting. The potential depth parameter Vo apart from being state dependent varies also with the mass number of the nucleus. Comments on relevant limitations and inaccuracies are also made.
DEBYE-WALLER TYPE EXPRESSIONS FOR THE NUCLEAR ELASTIC FORM FACTORS AT SMALL MOMENTUM TRANSFERS
Authors: Grypeos M. E. , Lalazissis G. A. , Massen S. E. , Panos C. P.
Published: April 2020

The problem of the estimate of the nuclear elastic form factors in Born approximation is discussed in the region of small momentum transfers q. It is shown that approximate expressions of the Debye-Waller type are suitable for estimates of these form-factors in the oscillator shell model, for sufficiently small q.
Local Theories and Bohmian Mechanics
Authors: Syros C.
Published: April 2020

One of the last develoonents in the research for extending the scope of the quantum theory is the recently appearing work on the Bohmian Mechanics. The motivation for an extension is provided by the conclusions of the EPR paradoxon and the famous alternative concerning the physical reality. Discussed are some properties of Bohmian Mechanics concerning the self-consistency of the theory.
Azimuthal Distribution in Heavy-Ion Collisions
Authors: Pandis G. , Das Gupta S.
Published: April 2020

We consider recent experimental data on azimuthal distributions of particles seen in heavy-ion collisions at 35 MeV/nucleon and at 50 MeV/nucleon. For 12C on 12C at 50 MeV/nucleon lab energy, the distribution shows features characteristic of flow; for 12C on 197Au experimental data show features characteristic of rotation. For 40Ar on 51V at 35 MeV/nucleon, effects of both flow and rotation are seen. In magnitudes the effects are small. We find that BUU calculations are able to reproduce these results.
Particle Number Dependence of Size and Energy Quantities in Sodium Clusters
Authors: Kotsos B. A. , Grypeos M. E.
Published: April 2020

The effective radial electronic potentials for neutral sodium clusters, which were determined by Ekardt on the basis of the local density approximation and the jellium model, are parametrized by means of the (symmetrized) Woods-Saxon and "Wine-Bottle" symmetrized Woods-Saxon potentials with the aim of investigating the dependence of size and energy quantities on the cluster particle number. The potential parameters are determined by vari­ous least-squares fitting procedures. It is found that for the radius R of the above potentials, complex expressions are more appropriate than the stan­dard one R = r0N^{1/3} for relatively small values of N. Furthermore, N-power expansions are derived for those complex expressions of R, as well as for the r.m.s. radius of the potential. It is also found that improved results in these cases are obtained with an expression of the form R = r0N^{1/3}+b, which is still very simple. There is also investigated the variation of energy quan­tities, such as the single particle energies of the 1s and 1p states, the level spacing |E1p-E1s| and the average energy level spacing, with respect to the particle number N. Expressions for the first three of these quantities with N-dependent terms of the form aN^{2/3} + βΝ^{-1} give good results.
Beryllium-7 Concentrations in the lower Atmosphere at the region of Thessaloniki (40°N)
Authors: Ioannidou A. , Papastefanou C.
Published: April 2020

N/A
Indoor Radon Measurement in Patras Region Using Activated Carbon
Authors: Kaplanis S. N. , Bakalis A. N.
Published: April 2020

Measurements of Rn concentration in air indoors in Patras area, Greece, have been carried out and are presented in this paper. The method used is based on George method using activated Carbon which adsorbs Rn and a Nal (TI) γ-ray detector. The method determines the γ-ray activity of the Rn decay products. The Rn level in (pCi/l) and the total error are presented for different geological areas in the region.
Cold Dark Matter in SUSY Theories. The Role of Nuclear Form Factors and the Folding with the LSP Velocity.
Authors: Kosmas T. S. , Vergados J. D.
Published: April 2020

The momentum transfer dependence of the total cross section for elastic scattering of cold dark matter candidates, i.e. lightest supersymmetric particle (LSP), with nuclei is examined. We find that even though the energy transfer is small (<100 keV) the momentum transfer can be quite big for large mass of the LSP and heavy nuclei. The total cross section can in such instances be reduced by a factor of about five. The spin induced cross section for odd-A nuclei is less reduced since the high multipoles tend to enhance the cross section as the momentum transfer increases (for LSP mass < 200 GeV). We present calculations of the event rates for a number of nuclear targets in a relatively wide phenomenologically allowed SUSY parameter space. These event rates are folded with a Maxwellian velocity distribution of the LSP consistent with its density hi the halos. We thus find that the event rates due to the Earth's revolution around the sun can change by 25%. This factor seems to be quite independent of the other parameters of the theory. Event rates up to 80 Kg^{-1}y^{-1} can be obtained in the parameter space considered.
Study of the Half-Diagonal Two-Body Density Matrix of Model Nuclear Matter
Authors: Petraki M. , Mavrommatis E. , Clark J. W.
Published: April 2020

The half-diagonal two-body density matrix ρ_{2h}/i(r1,r2,r') plays a central role in most theoretical treatments of the propagation of ejected nucléons and their final state interactions (FSI) in the nuclear medium. In this work based on the analysis of Ristig and Clark, we present the results of a Fermi hypernetted-chain calculation ρ_{2h}/i(r1,r2,r') for infinite symmetrical nuclear matter using a Jastrow-correlated model. The dependence of ρ_{2h} on the variables involved has been investigated in detail. Significant departures from ideal Fermi gas behavior in certain domains demonstrate the importance of short-range correlations. A comparison of our results with the predictions of Silver's approximation to ρ_{2h}, which has been employed in some treatments of FSI, reveals certain shortcomings of this approximation. The Fermi hypernetted-chain results obtained here will serve as a key input to an approximate treatment of FSI in inclusive quasielastic electron scattering from nuclear matter.
Neutrino - Nucleus Reaction Cross Sections at Low and Intermediate Energies
Authors: Kosmas T. S. , Oset E.
Published: April 2020

Neutrino-nucleus reactions at low and intermediate energies up to Ev=500 MeV are investigated for the most interesting nuclei from an experimental point of view. We mainly focus on calculations of neutrino-nucleus cross sections for semi-inclusive processes, for which recent measurements from radiochemical experiments at LAMPF and KARMEN have been obtained. Inclusive cross sections are also calculated and discussed. The method employed uses the Lindhard function for the description of the particle-hole excitations of the final nucleus via a local density approximation.
Studies of 137Cs absorption-desorption processes in sediments, using γ-ray spectroscopy
Authors: Mertzimekis T. J. , Ioannides K. G. , Papachristodoulou C. A. , Stamoulis K. C. , Karamanis D. T.
Published: April 2020

The description of 137Cs behavior during water to sediment transport generally involves the characterization of the sorption process in a particular hydro-geological system by certain prescribed kinetics parameters, hi the present work the kinetics of radiocesium sorption and desorption and the corresponding radiocesium distribution profiles in lake sediment cores were investigated. Radiocesium reaches rapidly (< than 5 d) at a depth which does not exceed 4 cm. The desorption of radiocesium was found to depend upon cation concentrations. Empirical laws were derived both for cesium adsorption and desorption.
Global predictions for astrophysics applications
Authors: Demetriou P.
Published: April 2020

Nuclear reaction rates play a crucial role in nuclear astrophysics. In the last decades there has been an enormous effort to measure reaction cross sections and extensive experimental databases have been compiled as a result. In spite of these efforts, most nuclear reaction network calculations still have to rely on theoretical predic- tions of experimentally unknown rates. In particular, in astrophysics applications such as the s-, r- and p-process nucleosynthesis involving a large number of nuclei and nuclear reactions (thousands). Moreover, most of the ingredients of the cal- culations of reaction rates have to be extrapolated to energy and/or mass regions that cannot be explored experimentally. For this reason it is important to develop global microscopic or semi-microscopic models of nuclear properties that give an accurate description of existing data and are reliable for predictions far away from the stability line. The need for more microscopic input parameters has led to new devel- opments within the Hartree-Fock-Bogoliubov method, some of which are presented in this paper.
Z(5): Critical Point Symmetry for the Prolate to Oblate Nuclear Shape Phase Transition
Authors: Bonatsos Dennis , Lenis D. , Petrellis D. , Terziev P. A.
Published: April 2020

A critical point symmetry for the prolate to oblate shape phase transition is intro­ duced, starting from the Bohr Hamiltonian and approximately separating variables for γ=30°. Parameter-free (up to overall scale factors) predictions for spectra and B(E2) transition rates are found to be in good agreement with experimental data for 194Pt, which is supposed to be located very close to the prolate to oblate critical point, as well as for its neighbours (192Pt, 196Pt).
Proton-capture Reaction Cross Sections on the Sr Isotopes Relevant to the p-process Nucleosynthesis
Authors: Galanopoulos S. , Harissopulos S. , Hammer J. W. , Kunz R. , Demetriou P.
Published: April 2020

Proton-capture reaction cross sections on the 86,87,88Sr isotopes have been determined at energies from 1.4 to 5 MeV by measuring γ-angular distributions at the 4 MV single-ended Dynamitron accelerator of the University of Stuttgart as well as at the 5 MV VdG Tandem accelerator of NCSR "Demokritos", Athens. In the former case an array of 4 HPGe detectors with relative efficiency εr≈100%, each shielded with BGO crystals, were used. In the case of the measurements carried out at "Demokritos" we used only one HPGe detector (εr≈80%) with no BGO shield. Cross sections ranging from 0.5 μb to 5 mb as well as the relevant S factors were obtained. The data were compared with statistical model calculations using the code MOST. In the calculations, various combinations of microscopic and phe- nomenological models of the nucleon-Nucleus Optical Model Potentials (OMP) and Nuclear Level Densities (NLD) were used and a good agreement between the data and theoretical predictions was found.
A detailed study of the high energy neutron flux (15-20 MeV) at NCSR “Demokritos” using a BC501A liquid scintillator
Authors: Mitsi Eleni , Chasapoglou Sotiris , Kalamara Antigoni , Kokkoris Michael , Michalopoulou Veatriki , Stamatopoulos Athanasios , Vlastou Roza , Lagoyannis Anastasios , Axiotis Michael , Patronis Nikolas , Eleme Zena
Published: April 2020

The current study was carried out for neutron beam energies ranging between 14.8 and 19.2 MeV using the 3H(d,n)4He reaction and included neutron/gamma discrimination and neutron monitoring utilizing a BC501A liquid scintillator, followed by a pulse shape discrimination-capable circuit. Tests were conducted in order to determine the characteristics and limitations of the employed experimental setup. The deconvolution of the acquired spectra was performed using the DIFBAS computer code. The algorithm is based on the Bayesian conditional probability,whilethe covariance filter method was employed to calculate the a posteriori neutron flux spectrum along with its covariance matrix.The produced neutron beam proved to be practically monoenergetic for low energy deuterons, while at higher deuteron beam energies, the strong presence of parasitic and scattered neutrons was revealed.
Microscopic description of induced fission dynamics with nuclear energy density functionals
Authors: Prassa Vaia , Tao H , Zhao J. , Li Z. P. , Nikšić T. , Vretenar D.
Published: April 2020

Static and dynamic aspects of the fission process are analyzed in a self-consistent framework based on energy density functionals. Multidimensionally constrained mean-field calculations in the collective space determine the potential energy surface of the fissioning nucleus, the scission line, the single-nucleon wave functions, energies, and occupation probabilities. Induced fission dynamics is described using the time-dependent generator coordinate method in the Gaussian overlap approximation. The position of the scission line is analyzed as a function of the strength of the pairing interaction, as well as the effect of static pairing correlations on charge yields and total kinetic energy of fission fragments.
Cross section measurement of 241Am(n,f) reaction at the Experimental Area 2 of the n_TOF facility at CERN: First Results
Authors: Eleme Zinovia , Et al. ...
Published: April 2020

The condition for the safe design and operation of fast neutron reactors and energy boosters (Generation-IV reactors, ADS systems [1]) is the accuracy of nuclear data. The 241Am isotope (T1/2 = 433 years) is highly present in nuclear waste, accounting for about 1.8% of the actinide mass in PWR UOx nuclear reactors’ waste [2]. In addition, the 241Am isotope is further produced by the β decay of the 241Pu isotope (T1/2 = 14.3 years). Given the high production rate of 241Am isotope, its incineration with concurrent energy production is considered to be of utmost importance for the design and implementation of the recycling of existing nuclear waste. Sensitivity studies of the proposed systems for energy production showed that high-precision measurements of the cross section of the 241Am(n,f) reaction are required. In the present work, the 241Am(n,f) reaction cross section was measured in the Second Experimental Area of the n_TOF facility at CERN, using an array of Micromegas detectors. For the measurement, six targets of 241Am with average activity of 17 MBq per sample were coupled with an equal number of detectors in a common chamber. Additionally two 235U and two 238U samples were coupled with Micromegas detectors utilizing the neutron flux determination. Within this work, an overview of the experimental set-up and the adopted data analysis technique is presented along with preliminary results.
Inter-comparison exercise utilizing x- and γ-ray spectrometry
Authors: Pappa Filothei K. , Tsabaris Christos , Patiris Dionisis , Eleftheriou Georgios , Androulakaki Effrossini G. , Kokkoris Michael , Vlastou Roza
Published: April 2020

Radionuclides are characterized by their nuclear and chemical behavior. Additionally, the geochemical characteristics of radionuclides result in their accumulation in the sediments via sorption processes. In this work the radionuclide activity concentrations obtained by gamma-ray spectrometry (HPGe detector) were converted to metal concentrations as described in [1]. The results were compared with the measured metal concentrations obtained by atomic spectrometry (X-ray fluorescence system-XRF). The samples originate from the coastal environment of two Greek areas, characterized by elevated values of natural radionuclides (e.g. 226Ra) and metals. The preliminary study revealed a good agreement among the concentrations of potassium calculated via activity concentrations of 40K and those of XRF measurement, while a great divergence was observed for the thorium case. These differences can be attributed to the low statistics, as well as to the calibration set-up of Th XRF measurement.
Risk Aversion Sensitive Real Business Cycles
Authors: Chen Zhanhui , Cooper Ilan , Ehling Paul , Xiouros Costas
Published: April 2020

Technology choice allows for substitution of production across states of nature and depends on state-dependent risk aversion. In equilibrium, endogenous technology choice can counter a persistent negative productivity shock with an increase in investment. An increase in risk aversion intensifies transformation across states, which directly leads to higher investment volatility. In our model and the data, the conditional volatility of investment correlates negatively with the price-dividend ratio and predicts excess stock market returns. In addition, the same mechanism generates predictability of consumption growth and produces fluctuations in the risk-free rate.

This paper was accepted by Gustavo Manso, finance.
Ensuring Adaptation While Seeking Efficiency: Tiered Outsourcing and Skip-Level Supplier Ties in the Airbus A350 Program
Authors: Baumann Oliver , Becker Markus C. , Horrmann Isabel
Published: April 2020

When outsourcing design tasks, firms want their suppliers to be both efficient and adaptive. Whereas efficiency is necessary to reap economic gains from outsourcing, adaptation is required to deal with interdependencies as the design evolves. Achieving both objectives simultaneously, however, is difficult because procurement contracts require a trade-off between providing incentives for efficiency and facilitating adaptation. In the presence of formal contracts that provide strong incentives for efficiency, ensuring adaptation thus requires effective relational contracts between the buyer and the supplier. But because the focus of prior research has been on dyadic buyer–supplier relationships, it is unclear how the efficiency–adaptation trade-off can be mitigated in the multitier supplier systems that are common in many industries. Addressing this gap, we argue that in hierarchical supplier systems, relational contracts between contractual partners become more important, but at the same time harder to establish, than in single-tier supplier systems. An in-depth case study of the adaptive frictions that arose in the Airbus A350 program allows us to illustrate this challenge of tiered outsourcing. Moreover, we show how Airbus came to resolve the frictions by leveraging skip-level ties—direct informal contacts to lower-level suppliers with which no contractual relationship existed, thus replacing the archetypal notion of a supplier hierarchy by a more complex relationship structure. We discuss the boundary conditions of our findings and suggest propositions for the emergence of skip-level ties in tiered outsourcing.
Role of nurses in addressing modifiable risk factors for early Alzheimer's disease and mild cognitive impairment
Authors: Hope Kevin
Published: April 2020

A multidisciplinary advisory group of health professionals involved in dementia care assessed the current evidence base regarding modifiable risk factors (MRFs) for early Alzheimer's disease and mild cognitive impairment. Based on evidence from the published literature and clinical experience, MRFs in four areas were identified where there is evidence to support interventions that may help delay cognitive decline or reduce the risk of developing Alzheimer's disease: medical (eg cardiovascular risk factors), psychosocial (eg depression, anxiety, social isolation), lifestyle (eg lack of physical activity, smoking) and nutrition (eg poor diet, lack of micronutrients). Practical guidance on how health professionals, but in particular nurses, may actively seek to address these MRFs in clinical practice was also developed. Nurses are at the forefront of patient care and, as such, are ideally placed to offer advice to patients that may proactively help mitigate the risks of cognitive decline and the development of Alzheimer's disease.
Epicardial pacing wires after cardiac surgery: an Irish cross-sectional study
Authors: Kiely Niamh , O'Brien Frances , Mooney Mary
Published: April 2020

Background:

Temporary epicardial pacing wires are inserted after cardiac surgery. However, there are no international guidelines on which to base best practice regarding wire insertion or removal.

Methods:

Data were collected on patients following cardiopulmonary bypass and analysed in terms of use, duration of use and complications of pacing wires after surgery.

Results:

Wires were inserted in 164 of the 167 patients. Most (74%) did not require pacing. Patients were categorised into those who had aortic valve replacement (AVR) (n=42) and those who did not (n=122). Of the AVR group, 26% (n=11) were pacemaker dependent after surgery and 10% (n=4) required permanent pacemakers. Most pacing wires were removed by day 4. The only noted complication was delayed discharge.

Conclusion:

Unused pacing wires are normally removed on day 4, but for 77 (47%) of patients they remained in place longer. Forty patients (24%) had delayed wire removal because of a policy of wire removal during business hours only. Of these 40 patients, 27 (17% of the 77 with delayed removal) had delayed discharge as a result of our wire removal policy.
Healthcare regulators' responses to the COVID-19 pandemic
Authors: Glasper Alan
Published: April 2020

Professor Alan Glasper, from the University of Southampton, discusses how the Care Quality Commission and the Nursing and Midwifery Council are working during the COVID-19 pandemic
Open visiting in the NHS
Authors: Foster Sam
Published: April 2020

Sam Foster, Chief Nurse, Oxford University Hospitals, considers the balance of the benefits of enabling visiting with infection prevention and control practice during this pandemic
Medical adhesive-related skin injuries associated with vascular access: minimising risk with Appeel Sterile
Authors: Barton Andrew
Published: April 2020

Vascular access device insertion is a common procedure in healthcare, and complications associated with vascular access can be serious and cause considerable patient harm. The use of care bundles to reduce the risks of these complications is well documented. However, the removal of devices, especially those associated with medical adhesive, can cause significant skin injuries, which often could be avoided if this aspect is included in the care bundle and the risk factors are better understood in healthcare. Appeel Sterile is an effective sterile silicone-based medical adhesive remover that is available in a variety of formats. It is the only sterile medical adhesive remover available, which makes it the safest choice for use with vascular access devices.
Um Olho no Peixe e Outro no Gato: Como as Fintechs Disputam Espaço com os Bancos em Época de Juros Baixos
Authors: Beal Partyka Raul , Lana Jeferson , Bahia Gama Marina Amado
Published: April 2020

Este caso de ensino contextualiza a evolução e transformação do Sistema Financeiro brasileiro, com destaque para o crescimento das fintechs (empresas financeiras de base tecnológica)e ruptura do momento de “sossego” dos grandes bancos. Com o surgimento das fintechs, o market share dos grandes bancos passa a ser ameaçado. Com isso, este caso tem por objetivodiscutir as estratégias de mercado concorrenciais dos bancos e das fintechs frente aos cenários futuros possíveis, sobretudo, analisar as estratégias das fintechs com enfoque nas atividadespolíticas corporativas sob forma de influenciar o governo, a regulação e o Sistema Financeiro Nacional para obter acesso ao mercado. O caso ainda permite avaliar a integração das estratégiasde mercado e de não mercado, atuando frente a um interesse em comum, entre as fintechs e os grandes bancos. Trata-se de um caso real dentro do contexto brasileiro. Pode ser utilizado em cursos de graduação e de pós-graduação em Administração, Ciências Contábeis, Economia e Gestão. Ainda pode ser utilizado em cursos complementares, de curta duração ou educação executiva, em temáticas tais como Relações Governamentais e Relações Institucionais e Estratégia de Não Mercado.
Desafios da Interdisciplinaridade no Ensino Superior: o Papel do Coordenador de Curso nos “Projetos e Atividades Especiais – PAES”
Authors: Penof David Garcia , Leonardo Sandra Bergamini , Farina Milton Carlos
Published: April 2020

Trata-se de estudo exploratório descritivo realizado em uma Instituição de Educação Superior (IES) brasileira com a participação dos coordenadores por sua importância nas ações conjuntas entre cursos. Foram analisados os relacionamentos entre coordenadores e o quanto estes  conhecem e promovem ações interdisciplinares tendo por base os Projetos e Atividades Especiais (PAEs) desenvolvidos na instituição. Também foram avaliadas, pelos pesquisados, dimensões consideradas essenciais para o sucesso dos trabalhos de grupos interdisciplinares. Os dados do questionário respondido pelos coordenadores foram interpretados por meio da Análise de Redes Sociais (ARS) com uso do software UciNet V6. Concluiu-se que ações interdisciplinares são incipientes entre os coordenadores. A dimensão “Comunicação eficaz” recebeu a melhor pontuação entre os respondentes para a consolidação da interdisciplinaridade entre os cursos. Já a dimensão “Características individuais” teve a menor pontuação. Notam-se ações individuais para promover e divulgar atividades interdisciplinares e que a interdisciplinaridade está na pauta da IES pesquisada, mas não se evidencia ação institucional para fortalecimento dos relacionamentos entre coordenadores. Características do coordenador e ou do curso fazem com que determinados cursos se mostrem como “ilhas de conhecimento”.
Giant solitary fibrous tumour: an uncommon approach for an uncommon tumour
Authors: Birla R , Clark S , Beattie A , Agarwal D
Published: April 2020

Complete surgical resection of a giant solitary fibrous tumour of the pleura can be challenging. We describe our technique for dealing with one such tumour. A clamshell incision proved inadequate for visualising the extent of the tumour. An additional lower sternotomy incision was then made, which significantly improved exposure. With the aid of cardiopulmonary bypass, it was then possible to mobilise and completely excise the tumour. Complete resection remains the mainstay of treatment for such pleural-based tumours. Every attempt must be made to achieve this, including any modification of the traditional approach if required.
Tuning the resolution and depth of field of a lens using an adjustable
ring beam illumination
Authors: Breen Taylor , Basque-Giroux Nathaniel , Fuchs Ulrike , Golub Ilya
Published: April 2020

A pair of axicons with an adjustable separation between them is used to
generate a variable diameter ring beam with high efficiency. This beam
illuminates a lens to produce quasi-diffraction-free beams with a
tunable spot size and depth of field. We studied the generated beam
characteristics while changing either the ring diameter or its
thickness. Such a scheme has applications in adjustable imaging,
including nondiffracting beam microscopy, material processing with an
irradiance above a certain threshold value, and particle
trapping/manipulation.
High-resolution interrogation of tilted fiber Bragg gratings using an extended range dual wavelength differential detection
Authors: Ouellette François , Li Jianfeng , Ou Zhonghua , Albert Jacques
Published: April 2020

An extended range dual wavelength differential detection technique for interrogating fiber Bragg grating sensors is implemented for the measurement of tilted fiber Bragg gratings. The dynamic chirp of a single DFB laser diode modulated with a square wave is used to generate two pairs of wavelengths, in the high and low modulation states, with a separation approximately equal to the bandwidth of the TFBG, resulting in a doubling of the range of the DWDD measurement. A spectral resolution of 0.08 pm and a refractive index resolution of 9.9 × 10−6 are obtained over a range of refractive index of 3.7 × 10−2, corresponding to 11.9 bits of resolution.
Bioinspired high-scattering polymer films fabricated by polymerization-induced phase separation
Authors: Tang Yong , Wu Kejian , Yu Shudong , Chen Junchi , Ding Xinrui , Rao Longshi , Li Zongtao
Published: April 2020

Inspired by the porous scale of the bright white beetle Cyphochilus, a polymerization-induced phase separation method is proposed to fabricate bioinspired high-scattering polymer films with porous structures. With an optimized formulation, the porous films with a mean pore size of

∼

200

n
m

feature a broadband reflectance of

∼

71

%

at a thickness of 16 µm and are measured to have a transport mean free path of

∼

3

µ

m

. The porous films with high reflectivity enable the application on light-emitting diodes and have great potential in other similar optoelectronic fields.
Performative problems
Authors: Luzar Robert
Published: April 2020

This article investigates the ‘performative’ and how this concept is used in drawing today, particularly in using writing, performance and choreography to address relations between self and other as a gender. The investigation starts with the question ‘Who is it that draws and also writes?’ From this, a notion of the performative is investigated further in terms of how gender identities are claimed to be produced (Butler). This deals with deeper questions about who and what kind of subject engages in the drawing, writing and production of gender. The aim is to investigate an underlying problem that deals with where this gendered subject sits within global-market contexts of art and culture, where value is placed on doing, subjectivity and bodily action… when in fact these same relations produce pseudo-activity, alienation and abstraction; as Kunst (2015) asks, what does ‘performative’ mean today when art and capitalism are so closely related? The article concludes with comments about the role of the body in contradictory spaces, where relations between artists and spectators deal with a notion of ‘withdrawing’ and ‘doing less’.
Sensing and Presencing Rare Plants through Contemporary Drawing Practice
Authors: Bowen Siân
Published: April 2020

Navigating through three distinct sites of knowledge – the seventeenth-century treatise on Malabar’s plants, Hortus Malabaricus; historical herbaria; and protected areas of remote forests and coastal regions of Kerala – the project will stimulate innovative modes of drawing through considerations relating to the collection and preservation of rare plants. Generating a distinctive body of artworks at world-leading plant science research facilities and in the bio-diverse South Indian rainforest, the research asks: can drawing represent the vulnerabilities and resilience of rare plants, not through illustration and gathering information by creating marks on a substrate, but as a material phenomenon that can generate new knowledge?
The Errant Muse, Charlotte Hodes and Deryn Rees-Jones
Authors: Coldwell Paul
Published: April 2020

Review of: The Errant Muse, Charlotte Hodes and Deryn Rees-Jones

The Victoria Gallery & Museum, Liverpool, 16 November 2019–2 May 2020
Exploring the lived experiences of teenagers in a children’s home participating in a choir: A community music therapy perspective
Authors: van Rooyen Anrie , dos Santos Andeline
Published: April 2020

This study explored the lived experiences of teenagers in a children’s home who participated in a choir that was facilitated from a community music therapy perspective in Pretoria, South Africa. Sixteen weekly choir sessions were held. These included a variety of interactive vocal techniques. A performance marked the end of the process, where songs selected by the teenagers were performed. Qualitative data were collected through fourteen semi-structured individual interviews at the end of the process. All interview transcripts were analysed through utilizing interpretative phenomenological analysis. The study concluded that participation in this community music therapy choir offered the teenagers perceived meaningful intra- and interpersonal experiences. At an intrapersonal level, the participants experienced discovering their musical voices; accessing inner strength to take action both in the here-and-now and in the future; increased self-awareness, self-esteem and self-confidence; as well as expressing and regulating emotions. In terms of interpersonal experiences, the teenagers experienced growth in relationships; improved social skills; and greater connection with the broader community.
Amateur orchestras as a learning environment for music academy students
Authors: Lonnert Lia
Published: April 2020

Orchestral playing is a common form of ensemble playing within higher music education. However, students sometimes participate in amateur orchestras outside of their formal education. This study focuses on what students learned by participating and what the educational institutions gained. The study is a case study of a music education institution and four amateur orchestras and consisted of eight interviews with conductors and administrators. The study shows that learning in the amateur orchestra is similar to learning in formal education contexts, such as developing knowledge of repertoire, in which both institutions contribute to the student’s overall knowledge. Nevertheless, some aspects are better learnt outside of formal education such as educational roles, the creation of a professional identity as a musician and knowledge of different social contexts.
Marketing lifestyles: The ready-to-wear industry and the genesis of the consumer in the United States (1880–1930)
Authors: Silla Cesare
Published: April 2020

This article aims to make a specific contribution to the field of fashion studies through a discussion of the role of marketing in the emergence of consumer capitalism in the United States between 1880 and 1930. Specifically, the orientation of American business towards marketing and its impact on the growth of the ready-to-wear industry after the First World War are presented and discussed. This new orientation is attributed to the emergence of a new ‘consumer culture’ related to the ‘democratization’ of fashion, which actively contributed towards shaping an appropriate type of subjectivity: the fashion-conscious consumer. Rather than discussing whether marketing forged new or responded to already existing fashion trends, this article employs a genealogical approach and focuses on the process of co-emergence: under what conditions and through what kind of forces did separate developments in fashion and marketing eventually join to meet the needs of a new form of subjectivity-in-the-making?
Veiling in Fashion: Space and the Hijab in Minority Communities, Anna-Mari Almila (2019)
Authors: Dunn Adam George
Published: April 2020

Review of: Veiling in Fashion: Space and the Hijab in Minority Communities, Anna-Mari Almila (2019)

London: I.B. Tauris, 243 pp.,

ISBN 978-1-78453-923-8, h/bk, £91.80

eISBN 978-1-78831-577-7, eBook, £73.44

ePDF 978-1-78831-576-0, PDF, £73.44
Workshop internacional de Arquitetura sobre Alojamento Estudantil e Reabilitação Urbana. República: Arquitetura, Universidade e Cidade
Authors: República Workshop
Published: April 2020

O Workshop organizou-se com cinco grupos de trabalho,formados com tutores e estudantes das diversas escolas nacionaisintegradas na rede PHI e com elementos das diversas repúblicas,que colaboraram no evento. Deste modo, cada grupo trabalhouespecificamente sobre uma república considerando diversas hipóteses, como a sua remodelação, a sua expansão ou mesmo a sua deslocação para outro edifício na cidade.
Biographies of Power: Personalities and Architectures
Authors: Figueira Jorge , Gil Bruno
Published: April 2020

This section displays the work produced by the students of the Department of Architecture of the University of Coimbra (DARQ, UC) for the courses History of Architecture III and History of Architecture IV in the academic year 2016-2017. The main theme for the practical works of both course units was Biographies of Power: Personalities and Architectures. The work was exhibited in the gallery of DARQ, UC in September 2017. The works presented for Biographies of Power: Personalities were focused on the passage of testimony between Louis Sullivan and F. L. Wright. While they crucially contributed to the identity of a modern and American architecture, they carried out a professional and personal relationship that was also guided by the measurement of forces. The work done by the students for Biographies of Power: Architectures resulted from an observation of a set of buildings that goes beyond their architectural and physical contours, or which precisely searches for their actual description, in the light of any ideology that is ultimately represented or even reinforced by its own architectural condition.
Ileal and Rectal Ulcer Size Affects the Ability to Achieve Endoscopic Remission: A Post hoc Analysis of the SONIC Trial
Authors: Narula Neeraj , Wong Emily C. L. , Aruljothy Achuthan , Dulai Parambir S. , Colombel Jean-Frederic , Marshall John K. , Ferrante Marc , Reinisch Walter
Published: April 2020

INTRODUCTION:

It is unclear how baseline endoscopic characteristics in Crohn's disease (CD) affect the ability to achieve endoscopic remission (ER). We aimed to determine the endoscopic prognostic factors that influence achieving ER in CD.

DESIGN:

This post hoc analysis of SONIC (NCT00094458; YODA #2019-3980) evaluated baseline and week 26 endoscopy indices in 172 patients using the CD Endoscopic Index of Severity (CDEIS) and the Simple Endoscopic Score for CD. The impact of baseline ulcer depth and size on achieving week 26 ER was assessed using multivariate logistic regression models adjusted for confounders.

RESULTS:

The ER rate of ileal ulcers was significantly lower than ER rates throughout the colon (P < 0.0001). Ileal ulcers >2 cm were less likely to achieve ER compared with smaller ulcers {odds ratio (OR) 0.31 (95% confidence interval [CI] 0.11–0.89), P = 0.03}. Similarly, rectal ulcers >2 cm were associated with reduced odds of week 26 ER (OR 0.26 [95% CI 0.08–0.80], P = 0.02). Ulcer size in other colonic segments did not affect the achievement of week 26 ER. Deep ileal and rectal ulcers >2 cm compared with smaller or superficial ulcers were even less likely to achieve week 26 ER (ileum: OR 0.10, 95% CI 0.02–0.68, P = 0.02; rectum: OR 0.12, 0.02–0.82, P = 0.03). High baseline Simple Endoscopic Score for CD (≥16) or CDEIS scores (≥12) did not affect achieving week 26 ER.

DISCUSSION:

Patients with larger and deep ulcers in the ileum or rectum may have difficulty achieving ER. Overall degree of endoscopic inflammation as measured numerically by endoscopic scores does not affect the likelihood of achieving week 26 ER.