bluuebunny/crossref_metadata_2025_split huggingface dataset:
Art et interprétation
Authors: Michel Johann 
Published: June 2021

L’objet de l’article est d’interroger le statut d’une œuvre d’art à partir du problème de l’interprétation posé initialement par Arthur Danto. Une œuvre d’art demande-t-elle nécessairement à être interprétée ? L’argumentation se déploie à une double échelle. À une échelle ontologique, l’enjeu est de savoir sous quelles conditions un objet appartient à la classe des œuvres d’art. À une échelle dénotative, l’enjeu est de savoir si toute représentation artistique requiert un travail interprétatif. L’auteur défend une théorie de l’interprétation restreinte , d’inspiration pragmatiste, en vertu de laquelle l’interprétation, comme activité suspensive et réflexive, n’intervient que lorsque le rapport au sens est troublé, confus, problématique. Ainsi une œuvre d’art n’est soumise à interprétation que lorsque son statut ontologique ne va pas de soi et lorsque son potentiel de dénotation contrarie notre rapport familier au sens.
Fantaisies architecturales chez Iakov Tchernikhov : surpasser la mimèsis à travers la phantasia comme agent du progrès
Authors: Charitonidou Marianna 
Published: June 2021

L’article examine les « compositions » de Tchernikhov en liant sa recherche constante de nouvelles formes à la capacité de convertir les « fantaisies » en représentations. Contrairement à Aristote, qui conçoit la mimèsis comme l’équivalent de l’entreprise artistique, Tchernikhov perçoit ses « compositions » comme des actes de dépassement de la mimèsis par la phantasia . Les illustrations visionnaires de ses Fantaisies architecturales expriment son intention de remplacer les mots par des images graphiques. Son approche est fondée sur la croyance que la puissance de l’imagination permet à la langue graphique, qui est par ailleurs internationale, de fonctionner comme un précurseur du progrès. L’objectif de l’article est d’élucider comment Tchernikhov traite la tension entre imagination et réalité et d’examiner dans quelle mesure sa production graphique parvient à surmonter la mimèsis à travers la phantasia . La réponse à ces questions pourrait nous aider à expliquer pourquoi Tchernikhov a souvent été jugé comme inclassable et à évaluer à quel point sa démarche reflète les polarités entre les rationalistes et les constructivistes. L’opposition entre « composition » et « construction » permet de mieux comprendre le positionnement à la fois singulier et fondamental de Tchernikov par rapport au constructivisme. L’article met en évidence le fait que le rôle essentiel de la phantasia pour Tchernikhov découle de la valorisation de la « composition » plutôt que la « construction ».
L’épidémiologie computationnelle à l’ère de la COVID-19
Authors: Li Vigni Fabrizio 
Published: June 2021

La COVID-19 a propulsé sur le devant de la scène des spécialistes des réseaux ayant fait de la modélisation épidémiologique leur occupation principale. Deux questions se posent ici à propos de cette spécialité : d’une part, comment sont construits les modèles et que recouvre leur irruption dans le débat ces derniers mois ; et d’autre part, comment des physiciens et des mathématiciens ont-ils réussi à devenir des experts épidémiologistes sans un parcours de professionnels de santé ? Nous abordons ces questions en étudiant les modèles produits par cette spécialité, ainsi que le processus de son émergence et la division du travail en son sein. La dernière section de l’analyse revient sur la première vague de l’épidémie et sur les débats qu’elle a pu renforcer ou ouvrir par rapport à cette nouvelle spécialité. L’article se fonde sur une enquête de terrain menée dans quatre laboratoires d’épidémiologie computationnelle, basés à Paris, Turin, Boston et Los Alamos.
300°C Optical Communications
Authors: Andarawis Emad , Chen Cheng-Po (Paul) , Cheng Baokai 
Published: June 2021

Abstract
A high temperature optical link capable of multi-megabits per second data rates at 300°C is presented. The system utilizes wide bandgap optical sources and detectors to achieve extreme temperature operation. Testing was conducted at multiple temperatures between room temperature and 325°C and at multiple light source currents. Light coupling into and out of a UV capable optical fiber was evaluated, and a model was created utilizing the test data of the photodiode dark current and the fiber optic cable insertion loss and attenuation and assess optical communications capability to 325°C and beyond.
Effect of High Temperature Storage on AC Characteristics of Polymer Tantalum Capacitors
Authors: Teverovsky Alexander 
Published: June 2021

Abstract
Replacement of MnO2 with conductive polymers as cathode materials in chip tantalum capacitors allows for a substantial reduction of the equivalent series resistance (ESR), improvement of frequency characteristics, and elimination of the possibility of ignition during failures. One of the drawbacks of chip polymer tantalum capacitors (CPTCs) is a relatively poor long-term stability at high temperatures. In this work, variations of capacitance, dissipation factor, and ESR in different types of capacitors including automotive grade parts from three manufacturers have been monitored during storage at temperatures from 100 °C to 175 °C for up to 18,000 hours. Results show that ESR is the most and capacitance the least sensitive to degradation parameter. Times to parametric failures have been simulated using a Weibull-Arrhenius model that allowed for assessments of activation energies of the degradation and prediction of times to failure at the use temperature. Degradation of CPTCs was explained by thermo-oxidative processes in conductive polymers that result in exponential increasing of the resistivity with time of ageing. This process starts after a certain incubation period that depends on packaging materials and design and corresponds to the time that is necessary to form delamination between the encapsulating molding compound and lead frame. The effectiveness of the existing qualification procedures to assure stable operation of CPTCs is discussed.
Enhancement Mode GaN-FETs in Extreme Temperature Conditions, Part I: Static Parasitic Parameters
Authors: Duraij Martijn S. , Xiao Yudi , Zsurzsan Gabriel , Zang Zhe 
Published: June 2021

Abstract
Smaller packaging and sizing of power electronics and higher operating temperatures of switching devices call for an analysis and verification on the impact of the parasitic components in these devices. Found drift mechanisms in an eGaN-FET are studied by literature and related to measurements performed in extreme temeprature conditions far beyond the manufacturer recommended operating range. A thermal chamber was build to precisely measure the effect of temperature in these devices using a curve tracer. It is found that the increment in RDSon, IDSS, IGSS and VSD can be justified by the theory and backed up by measurements. It is also found that the particular eGaN-FET can be suited for extreme temperature operating conditions.
Simulating the Effect of Rigid Frameworks on the Mechanical Properties of Transient Liquid Phase Sintered (TLPS) Alloys
Authors: Nave Gilad , McCluskey Patrick 
Published: June 2021

Abstract
The need for power electronic devices and materials that can operate in harsh environments, together with the Restriction of Hazardous Substances (RoHS) legislation, has driven industry and researchers to develop new attach materials. Transient Liquid Phase Sintered (TLPS) joints are strong candidates to replace the current die attach materials due to their superior mechanical, thermal, and electrical properties. Despite these qualities, current TLPS systems may exhibit stiff and brittle behavior that can lead to die or attach fracture under large thermomechanical strains during wide temperature range cycling, or under mechanical stress from shock and vibration loading, such as is experienced in automotive electronics. This paper presents an approach for reducing thermal and mechanical strain levels by incorporating Transmission Electron Microscopy (TEM) Cu grids as a reinforcement to the attach material. The grids serve as ductile reinforcement capable of absorbing elastic and plastic energy, and as a barrier for crack propagations through the relative brittle TLPS material. Homogenization calculations were used to evaluate the effective properties of the TLPS, followed by numerical analysis that shows the effect of the grids on the die attach structure, and the mechanical integrity of the design.
Smart Ultrasonic Welding – A Versatile Interconnection Technology for Power Electronics Packaging
Authors: Hunstig Matthias , Holtkämper Sebastian , Helmich Lars , Brökelmann Michael 
Published: June 2021

Abstract
Ultrasonic welding is a common and indispensable technology in the packaging of power electronics. Typical applications are terminals and power contacts, e.g. in motor drive or inverter modules, as well as busbar connections. The process control requirements for welding power electronics connectors or bus bars, e.g. on batteries, are increasingly overlapping with requirements typical for heavy wire bonding. Smart ultrasonic welding is a new technology combining the force and ultrasonic power of conventional ultrasonic welding equipment with the flexibility, precision, speed and advanced process control features of wire bonding machines.
This contribution discusses the characteristics of smart welding equipment and presents process results for two different smart welding applications. On the low power end, smart welding and wire bonding are compared in the production of cylindrical cell battery packs, using a 100 W ultrasound system and aluminium connectors. Towards the high power end, 3 × 1.2 mm2 copper leads are welded to DBC with a contact area of 3 × 3 mm2, using a 1.5 kW ultrasound system. Both applications demonstrate advantages of smart welding over conventional ultrasonic welding.
Feasibility of a Wearable-Based Physical Activity Goal-Setting Intervention Among Individuals With Anterior Cruciate Ligament Reconstruction
Authors: Kuenze Christopher , Pfeiffer Karin , Pfeiffer Matthew , Driban Jeffrey B. , Pietrosimone Brian 
Published: June 2021

Context
Individuals with a history of anterior cruciate ligament reconstruction (ACLR) demonstrate persistent reductions in physical activity (PA) volume that are not being addressed during rehabilitation. Currently, it is challenging for clinicians to prescribe exercise interventions that extend beyond in-person rehabilitative care in a manner that is responsive and acceptable to patients.

Objective
To investigate the feasibility of using a novel, technology-driven, personalized goal-setting intervention over a 2-month period among young individuals with a history of primary unilateral ACLR.

Design
Single-blinded feasibility study.

Setting
University community

Patients or Other Participants
Ten women and 2 men (age = 22.0 ± 3.0 years, time since surgery = 56.0 ± 36.3 months) with a history of primary unilateral ACLR.

Intervention(s)
All participants completed a 28-day PA observation period immediately followed by a 28-day individualized PA goal-setting intervention period delivered via a commercially available PA monitor.

Main Outcome Measure(s)
Primary feasibility outcomes were days of PA monitor wear compliance and days of goal achievement during the intervention period. Participants also completed the Knee Osteoarthritis Outcome Score (KOOS) at study enrollment and after the intervention period, and the individual change in the KOOS Quality of Life subscale was compared with the minimal detectable change (7.2 points).

Results
Average PA monitor wear compliance was 95.5% ± 7.3% during the observation period and 97.7% ± 2.9% during the intervention period. Median goal achievement was 31.5% ± 6.8% during the intervention period. Five participants demonstrated meaningful improvements in the KOOS Quality of Life subscale during the study period.

Conclusions
Individualized goal setting via mobile technology appears to be a feasible approach to PA promotion. However, based on the low rate of daily goal attainment during the intervention period, continued refinement of this intervention aproach would be beneficial before broad clinical implementation.
Electrophysiological Evaluation of Audiovestibular Pathway Dysfunction in Parkinson's Disease and Its Correlates
Authors: Ampar Nikith , Mehta Anish , Mahale Rohan R. , Javali Mahendra , Pradeep R , Acharya Purushottam , Srinivasa Rangasetty 
Published: June 2021

Background:
Parkinson's disease (PD) is associated with brainstem dysfunction causing non-motor symptoms. Vestibular evoked myogenic potential (VEMP) and brainstem auditory evoked potential (BAEP) are electrophysiological tests to assess the vestibular and auditory pathways in the brainstem.

Objectives:
To study the abnormalities of cervical VEMP (cVEMP) and BAEP in PD and to correlate the findings with the symptoms related to brainstem involvement.

Patients and Methods:
cVEMP and BAEP were recorded in 25 PD patients and compared 25 age matched controls. The PD patients were assessed with the following clinical scales: REM Sleep Disorder Screening Questionnaire (RBD-SQ), Epworth Sleepiness Scale (ESS), mini-BESTest, Geriatric Depression Scale (GDS-15) and MMSE (Mini-mental state examination). The P13 and N23 peak latencies and the P13/N23 amplitude of cVEMP, the latencies of waves I, III and V, and the inter-peak latencies (IPL) of waves I-III, III-V and I-V of BAEP were measured.

Results:
The PD patients showed prolonged latencies and reduced amplitude in cVEMP responses. They had abnormal BAEP in the form of prolonged absolute latencies of wave V, followed by wave III and I–V IPL with no significant difference in waves I and I–III IPL. The cVEMP abnormality was correlated directly with RBD-SQ and inversely with mini-BESTest scores. There were no correlations between cVEMP/BAEP abnormality and disease severity, GDS-15, ESS and MMSE.

Conclusion:
PD is associated with cVEMP and BAEP abnormalities that suggest auditory and vestibular pathway dysfunction in the brainstem and cVEMP correlates with the symptoms of brainstem degeneration like RBD and postural instability.
Effect of Yoga and Physiotherapy on Pulmonary Functions in Children with Duchenne Muscular Dystrophy – A Comparative Study
Authors: Dhargave Pradnya , Nalini Atchayaram , Nagarathna Raghuram , Sendhilkumar Raghupathy , James Tittu Thomas , Raju Trichur R , Sathyaprabha Talakad N 
Published: June 2021

Context:
Abnormal respiratory function is known to be detectable almost as soon as it can be measured reliably. Studies have identified the effect of respiratory muscle training as well as breathing exercises in improving pulmonary functions in children with Duchenne muscular dystrophy (DMD).

Aims:
This study aims to identify the add-on effect of yoga over physiotherapy on pulmonary functions in children with DMD.

Settings and Design:
One hundred and twenty-four patients with DMD were randomized to two groups. Group I received home-based physiotherapy and Group II received physiotherapy along with yoga intervention.

Materials and Methods:
Pulmonary function test (PFT) was assessed before the intervention (baseline data) and at regular intervals of 3 months for a period of 1 year.

Statistical Analysis Used:
Normality was assessed using Shapiro–Wilk normality test. The baseline data were analyzed using Mann–Whitney U-test to identify the homogeneity. Repeated measures analysis of variance was used to assess significant changes in study parameters during the assessment of every 3 months, both within and between the two groups of patients.

Results:
A total of 88 participants completed all the 5 assessments, with a mean age of 7.9 ± 1.5 years. PFT parameters such as forced vital capacity (FVC), peak expiratory flow rate, maximum voluntary ventilation (MVV), and tidal volume during maximum voluntary ventilation (MVt) demonstrated significant improvements in Group I. In Group II, FVC and MVt significantly improved from baseline up to 1 year, whereas MVV improved from baseline up to 9 months. Tidal volume did not show any changes in both the groups.

Conclusions:
The findings suggest that introduction of yoga with physiotherapy intervention at an early age can be considered as one of the therapeutic strategies in improving pulmonary functions in patients with DMD.
Global Change in Interest toward Yoga for Mental Health Ailments during Coronavirus Disease-19 Pandemic
Authors: Jindal Har Ashish , Jindal Parineeta , Jamir Limalemla , Faujdar Dharamjeet Singh , Datta Himani 
Published: June 2021

Background:
With coronavirus disease (COVID)-19 pandemic, society is gripped with uncertainty and fear, inclining them toward Yoga to prevent mental health issues. Google Trends (GT) depicts the public interest of the community which may vary due to evolving policy dynamics of the COVID-19 pandemic.

Aim:
The aim was to study global public interest in Yoga for mental health during the COVID-19 pandemic.

Material and Methods:
Global time trends were obtained for Yoga, Anxiety, and Depression from November 1, 2019 to May 31, 2020 using GT. The time series analysis was done in three different time periods – pre-COVID-19 phase, transition period, and COVID-19 pandemic phase. Cross-correlation, Spearman rho, Friedman ANOVA test, and forecasting were used for analysis.

Results:
GT found a global change in the search queries for Yoga, anxiety, and depression during the three time periods. High burden COVID-19 countries – Italy, Spain, Russia, and Brazil had an increasing search trend for Yoga. During the COVID-19 phase, there was a significant positive correlation between the search trends of Yoga with depression (r = 0.232; P < 0.05) and anxiety (r = 0.351; P < 0.05), but higher anxiety and depression searches lead to lower Yoga searches at lag +6. Forecast projected a continuous increase in Yoga searches and anxiety queries.

Conclusion:
Google Trends captured a significant rise in interest of Yoga among the global community but diminished with time. Hence, the need for interventions to promote Yoga to be part of routine life and for making sure that people adhere to the Yoga practices on a continuous basis.
Knowledge, practice, and awareness of dental undergraduate and postgraduate students toward postexposure prophylaxis and needlestick injuries
Authors: Fatima Asmat , Alam Sharique , Iftekhar Huma , Tewari Rajendra Kumar , Nisar Andrabi Syed Mukhtar-Un , Faraz Amber Ali 
Published: June 2021

Background:
The aim of the present study was to assess the knowledge, awareness, and practice of dental undergraduate, interns, and postgraduate students toward postexposure prophylaxis (PEP) and needlestick injuries.

Materials and Methods:
A cross-sectional, questionnaire-based survey was carried out among undergraduate, interns and postgraduate dental students in an institutional dental hospital in India. The students were required to fill a self-administered questionnaire with close ended questions with responses indicated by a simple tick box format. The questionnaire was divided into three sections intended to collect information on (1) sociodemographic characteristics, (2) knowledge, and (3) practice habits toward needlestick injury (NSI) and PEP of the respondents.

Results:
An adequate score (>70% correct response) to knowledge about NSI and PEP was obtained by 60.2% (50/83) of the respondents, while 47% (39/83) of the student participants obtained an adequate score (>70% score) to appropriate practice habits toward NSI and PEP. A high proportion (84.3%) of the student were vaccinated against Hepatitis B virus, but only 6% were aware of their serum antibody to HBsAg. 61.5% of the student reported experiencing NSI during clinical practice with 3.6% of the students taking PEP. The most common reason for not taking PEP was ignorance of PEP protocol (27.7%) and lack of support to report the incidence (18.1%). The postgraduate students scored better than the undergraduate students in both the knowledge and practice parameters, but the results were not statistically significant (P > 0.05).

Conclusion:
This study shows that dental students' knowledge, practice, and awareness toward NSI and PEP is inadequate. The current classroom education must be supplemented with additional interventions to ingrain appropriate practice habits.
Impact of treatment and the contribution of persistent posttreatment bacterial vaginosis infection on pregnancy outcome among asymptomatic women: A cohort study
Authors: Ogunniran Babatunde , Adeniran Abiodun , Saidu Rakiya , Akanbi II Ajibola , Adesina Kikelomo , Ijaiya Munirdeen 
Published: June 2021

Abstract
Objective: The objective of this study was to evaluate the effect of antibiotic treatment and posttreatment persistent bacterial vaginosis (BV) infection on pregnancy outcome among asymptomatic women. Materials and Methods: A prospective cohort study was conducted among consenting, asymptomatic pregnant women without background medical disorders. All participants were recruited in the second trimester and had BV testing using Nugent score. BV-positive women were treated with a 7-day course of metronidazole with a repeat posttreatment laboratory testing after 4 weeks. The primary outcome was pregnancy outcome of BV-positive versus negative women; the secondary outcomes were posttreatment laboratory BV test result and pregnancy outcome among women with resolution versus persistent infection. Data analysis was performed using SPSS version 21.0 and P < 0.05 was significant. Results: The prevalence of BV in pregnancy was 24.1%; vulva itching and vaginal douching were more common among BV-positive women (P = 0.011 and P = 0.001), respectively. Adverse pregnancy outcomes such as premature rupture of membranes (PROM) (odds ratio [OR]: 8.185, 95% confidence interval [CI]: 3.196–20.962; P = 0.005), preterm delivery (OR: 24.517, 95% CI: 6.985–86.049; P = 0.001), and birth weight <2500 g (OR: 6.460, 95% CI: 2.893–14.429; P = 0.005) were more common among BV-positive women. Posttreatment persistent BV infection was 25.0% with significantly higher PROM (OR: 18.21, 95% CI: 4.654–71.317; P = 0.001), preterm delivery (OR: 14.571, 95% CI: 4.138–51.308; P = 0.001), birth weight <2500 g (OR: 14.57, 95% CI: 4.138–51.308; P = 0.001), and low 1st min Apgar scores (OR: 7.333, 95% CI: 1.223–43.960; P = 0.049). Conclusion: Symptom-based approach to BV in pregnancy excludes many asymptomatic women; we hereby recommend routine screening. Also, women with BV in pregnancy should undergo repeat testing posttreatment while those with persistent infection will benefit from repeat treatment pending further evidence to formulate a widely acceptable treatment guideline.