bluuebunny/crossref_metadata_2025_split huggingface dataset:
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.
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.
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.
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.
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.
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”.
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.
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
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.
Temporal Relationship Between Night-Time Gastroesophageal Reflux Events and Arousals From Sleep
Authors: Shepherd Kelly , Ockelford James , Ganasan Vijeyadezmi , Holloway Richard , Hillman David , Eastwood Peter 
Published: April 2020

INTRODUCTION:
Night-time gastroesophageal reflux (nGER) symptoms are commonly associated with interrupted sleep. Most studies attempting to understand the relationship between sleep, arousal, and nGER events have been performed so using accelerometry; however, this technology is limited in its ability to precisely determine the temporal association between sleep and reflux events. We aimed to examine the temporal relationships between nGER events and arousal/awakening from sleep using high resolution, in-laboratory polysomnography (PSG).

METHODS:
Individuals between 18 and 70 years who had undergone a gastroscopy within 12 months underwent simultaneous 24-hour pH/impedance monitoring and in-laboratory PSG. The temporal relationship between each nGER event and sleep/arousals/awakenings was determined for each participant. Analyses were limited to the sleep period (between “lights out” and time of final waking).

RESULTS:
Analyses were conducted on the data from 25 individuals, 64% of whom had nGER episodes (5 ± 5 events per person, range 1–18) and 64% of whom had obstructive sleep apnea (OSA, mean apnea–hypopnea index 20 ± 11 events/hr, range 6–44). There were no differences in PSG-determined sleep duration, sleep efficiency, sleep architecture, arousals/awakenings, or sleep apnea severity between those with nGER and those without. Most nGER events (82%) occurred during a PSG epoch that had been classified as wake. Arousals/awakenings preceded almost all events (73/76), whereas fewer had an arousal/awakening after the event (15/76).

DISCUSSION:
As opposed to what is typically assumed, nGER does not seem to cause arousal from sleep, but rather arousal from sleep predisposes to nGER.
Principles of Intrinsic Motor Cortex Connectivity in Primates
Authors: Card Nicholas S. , Gharbawie Omar A. 
Published: April 2020

The forelimb representation in motor cortex (M1) is an important model system in contemporary neuroscience. Efforts to understand the organization of the M1 forelimb representation in monkeys have focused on inputs and outputs. In contrast, intrinsic M1 connections remain mostly unexplored, which is surprising given that intra-areal connections universally outnumber extrinsic connections. To address this knowledge gap, we first mapped the M1 forelimb representation with intracortical microstimulation (ICMS) in male squirrel monkeys. Next, we determined the connectivity of individual M1 sites with ICMS + intrinsic signal optical imaging (ISOI). Every stimulation site activated a distinctive pattern of patches (∼0.25 to 1.0 mm radius) that we quantified in relation to the motor map. Arm sites activated patches that were mostly in arm zones. Hand sites followed the same principle, but to a lesser extent. The results collectively indicate that preferential connectivity between functionally matched patches is a prominent organizational principle in M1. Connectivity patterns for a given site were conserved across a range of current amplitudes, train durations, pulse frequencies, and microelectrode depths. In addition, we found close correspondence in somatosensory cortex between connectivity that we revealed with ICMS+ISOI and connections known from tracers. ICMS+ISOI is therefore an effective tool for mapping cortical connectivity and is particularly advantageous for sampling large numbers of sites. This feature was instrumental in revealing the spatial specificity of intrinsic M1 connections, which appear to be woven into the somatotopic organization of the forelimb representation. Such a framework invokes the modular organization well-established for sensory cortical areas.SIGNIFICANCE STATEMENTIntrinsic connections are fundamental to the operations of any cortical area. Surprisingly little is known about the organization of intrinsic connections in motor cortex (M1). We addressed this knowledge gap using intracortical microstimulation (ICMS) concurrently with intrinsic signal optical imaging (ISOI). Quantifying the activation patterns from dozens of M1 sites allowed us to uncover a fundamental principle of M1 organization: M1 patches are preferentially connected with functionally matched patches. Relationship between intrinsic connections and neurophysiological map is well-established for sensory cortical areas, but our study is the first to extend this framework to M1. Microstimulation+imaging opened a unique possibility for investigating the connectivity of dozens of tightly spaced M1 sites, which was the linchpin for uncovering organizational principles.
Experience-Dependent Coding of Time-Dependent Frequency Trajectories by Off Responses in Secondary Auditory Cortex
Authors: Chong Kelly K. , Anandakumar Dakshitha B. , Dunlap Alex G. , Kacsoh Dorottya B. , Liu Robert C. 
Published: April 2020

Time-dependent frequency trajectories are an inherent feature of many behaviorally relevant sounds, such as species-specific vocalizations. Dynamic frequency trajectories, even in short sounds, often convey meaningful information, which may be used to differentiate sound categories. However, it is not clear what and where neural responses in the auditory cortical pathway are critical for conveying information about behaviorally relevant frequency trajectories, and how these responses change with experience. Here, we uncover tuning to subtle variations in frequency trajectories in auditory cortex of female mice. We found that auditory cortical responses could be modulated by variations in a pure tone trajectory as small as 1/24th of an octave, comparable to what has been reported in primates. In particular, late spiking after the end of a sound stimulus was more often sensitive to the sound's subtle frequency variation compared with spiking during the sound. Such “Off” responses in the adult A2, but not those in core auditory cortex, were plastic in a way that may enhance the representation of a newly acquired, behaviorally relevant sound category. We illustrate this with the maternal mouse paradigm for natural vocalization learning. By using an ethologically inspired paradigm to drive auditory responses in higher-order neurons, our results demonstrate that mouse auditory cortex can track fine frequency changes, which allows A2 Off responses in particular to better respond to pitch trajectories that distinguish behaviorally relevant, natural sound categories.SIGNIFICANCE STATEMENTA whistle's pitch conveys meaning to its listener, as when dogs learn that distinct pitch trajectories whistled by their owner differentiate specific commands. Many species use pitch trajectories in their own vocalizations to distinguish sound categories, such as in human languages, such as Mandarin. How and where auditory neural activity encodes these pitch trajectories as their meaning is learned but not well understood, especially for short-duration sounds. We studied this in mice, where infants use ultrasonic whistles to communicate to adults. We found that late neural firing after a sound ends can be tuned to how the pitch changes in time, and that this response in a secondary auditory cortical field changes with experience to acquire a pitch change's meaning.