bluuebunny/crossref_metadata_2025 huggingface dataset:
Proof of concept for a novel and smart shade resilient photovoltaic module
Authors: Golroodbari Sayedeh Zahra Mirbagheri , de Waal Anne Celeste , van Sark Wilfried G.J.H.M.
Published: June 2019

In this study, the performance of a shade resilient smart module is studied under a dynamic shading pattern. A smart module architecture is developed to mitigate the non‐linear shading effect on the module performance. Partial shading decreases the output current of the shaded cells and affects the unshaded cells’ output power. After distributing the module cells into small groups, based on a least square support vector machine optimisation method, DC–DC buck converters compensate the decreased current levels, by adjusting the output current and voltage level from any individual group of cells. The system is simulated in the MATLAB Simulink environment, and the output results are presented. Results show that the module performs efficiently and output power of the unshaded groups of cells never decreased because of the effect of shading on the other groups. Additionally, the maximum output power is harvested from all groups simultaneously. Prototype hardware is designed and built to implement the proof of concept. The real‐time results of hardware testing show that the smart module performs as expected and mitigates partially shaded conditions by extracting maximum power from each group, regardless of other groups shading condition.
Tail conditional probabilities to predict academic performance
Authors: González-López Verónica Andrea , Piovesana Marina Capelari , Romano Nícolas
Published: June 2019

In this paper, we estimate tail conditional probabilities by incorporating copula models and adopting a Bayesian estimation process for the copula’s parameter. Based on the records of student’s classifications in (a) Mathematics and (b) Natural Sciences/Physics (of the entrance exam to the University of Campinas, from 2013 to 2015), by means of tail conditional probabilities we predict the performance, of the same students, in Calculus I which is a mandatory subject of the undergraduate course of Statistics, and we compare the conditional probabilities year after year. We see that (a), (b) and Calculus I show maximal trivariate correlations in tail events given by classifications which are jointly high/low in the three subjects. We compare the evolution of the tail conditional probabilities from 2013 to 2015 and, according to our results there has been an improvement (from 2013 to 2015) of at most 12%. This improvement being more incisive in the settings with conditional events given by jointly high classifications in comparison with settings with conditional events given by jointly lower classifications.
Therapeutische Beziehung in der Behandlung komplex
traumatisierter Patienten
Authors: Wöller Wolfgang
Published: June 2019

Die negativen Beziehungserfahrungen von PatientInnen mit komplexen
Traumafolgestörungen haben erhebliche Auswirkungen auf die Wahrnehmung der
therapeutischen Beziehung. Wie im Alltagsleben können auch hier zahlreiche
auslösende Situationen traumatisches Erleben reaktivieren. Das
generalisierte Bedrohungsgefühl der PatientInnen ist daher zu
berücksichtigen und die therapeutische Beziehung nach dem Prinzip des
maximalen Kontrasts zur traumatischen Erfahrung zu gestalten.
Trauma in der Erinnerung heilen
Authors: Sopp M. Roxanne , Schäfer Sarah K. , Michael Tanja
Published: June 2019

Unwillkürliche belastende Erinnerungen und die Vermeidung traumaassoziierter
Reize prägen in Folge einer Traumatisierung das Leben derjenigen, die eine
Posttraumatische Belastungsstörung entwickeln. Die Teilhabe am Alltag ist in
vielen Fällen nur noch eingeschränkt möglich. Traumafokussierte kognitive
Verhaltenstherapien (t-KVT) bieten Verfahren, die helfen können, das Erlebte
zu verarbeiten. Kernelemente sind die therapeutisch begleitete Konfrontation
mit traumatischen Erinnerungen und die Bearbeitung belastender Gedanken. Die
Behandlung kann den Betroffenen die Teilhabe am Alltag wieder
ermöglichen.
Systemische Traumatherapie – theoretischer Hintergrund und
praktische Anwendung
Authors: Hanswille Reinert
Published: June 2019

Traumafolgestörungen werden von prozessorientierten systemischen Perspektiven
als dynamischer Anpassungsprozess auf einem Kontinuum von Gesundheit und
Krankheit beschrieben. In diesem Selbstorganisationsprozess sollen
Bedingungen geschaffen werden, in denen stabile symptombildende Strukturen
verändert werden können. Der folgende Beitrag skizziert den Prozess der
Traumatisierung aus systemischer Sicht.
Arbeit an Glaubenssätzen
Authors: Dahm-Mory Claudia
Published: June 2019

Glaubenssätze sind Sätze und Regeln, die in der Kindheit durch die Familie
übermittelt werden. Verschiedene psychotherapeutische Verfahren bearbeiten
Glaubenssätze und ihre Auswirkung auf Verhaltensweisen. Eine Umwandlung
dieser Familienregeln in weniger strikte Leitlinien soll das Wachstum und
die persönliche Entwicklung des Patienten ermöglichen.
Adjuvante Therapie bei posttraumatischer
Belastungsstörung
Authors: Schanz Christian G. , Equit Monika , Michael Tanja
Published: June 2019

Bei der Behandlung posttraumatischer Belastungsstörungen (PTBS) stellen
traumafokussierte Psychotherapieverfahren die Methode der ersten Wahl dar.
Obwohl diese Verfahren nachweislich zu einer starken Symptomreduktion
führen, bildet sich die PTBS-Symptomatik nicht bei allen Betroffenen
vollständig zurück. Erste Befunde zum Einsatz von adjuvanten
Therapieverfahren in der PTBS-Behandlung verweisen auf vielversprechendes
Potenzial zur Steigerung der Wirksamkeit etablierter Verfahren.
Traumatherapie bei Geflüchteten
Authors: Nikendei Christoph , Kindermann David , Junne Florian , Greinacher Anja
Published: June 2019

Migration wird als intendierte oder zwangsläufige Veränderung des
Lebensmittelpunkts verstanden. Die Prävalenz an Traumafolgestörungen und
komorbiden psychischen Erkrankungen ist in vielen Populationen von Geflüchteten
gegenüber der Normalbevölkerung deutlich erhöht. Auch die an der Versorgung
beteiligten Berufsgruppen weisen eine hohe psychische Belastung im Sinne der
Sekundärtraumatisierung auf.
Interdisziplinäre Fallkonferenzen als Chance für Myositis-Patienten?
Authors: Rademacher Jan-Gerd , Seitz Cornelia S. , Zschüntzsch Jana , Mößner Rotraut , Zeisberg Michael , Olgemöller Ulrike , Buck Cordula , Zechel Sabrina , Müller Gerhard A , Vasko Radovan , Schmidt Jens , Korsten Peter
Published: June 2019

Gegenstand und Ziel Myositis-Patienten bedürfen einer interdisziplinären Diagnostik und Therapie. Über Konsile erfolgt die Besprechung unsystematisch und zum Teil therapeutisch divergent. Interdisziplinäre Fallkonferenzen bieten potenzielle Vorteile bei Myositiden und anderen Systemerkrankungen.

Material und Methoden Narrative Beschreibung des „Göttinger Modells“ und retrospektive Analyse der immunologischen Fallkonferenzen von September 2018 bis Februar 2019.

Ergebnisse 30 Patienten wurden vorgestellt, 15 im Rahmen einer Myositis. Weitere Diagnosen umfassten Sarkoidose, Sklerodermie und andere Entitäten. 20 Patienten wiesen positive antinukleäre Antikörper (AK) auf; weitere AK waren Ro52, Antisynthetase, Mi2-β, TIF1-γ, MDA5 und CENP-B/Fibrillarin. Eine CK-Erhöhung lag in 5 Fällen vor. 23 Patienten wurde eine weitere Diagnostik empfohlen. Therapieänderungen erfolgten bei 11 Patienten.

Schlussfolgerungen Interdisziplinäre Fallkonferenzen ermöglichen eine systematische diagnostische und therapeutische Strategie. In einer prospektiven Studie sollte untersucht werden, inwieweit sich Fallkonferenzen auf krankheitsassoziierte sowie patientenseitige Outcomes auswirken.

Klinische Relevanz Das „Göttinger Modell“ ist gut umsetzbar und führt überwiegend zu diagnostischen und therapeutischen Konsequenzen.
Diagnostischer Stellenwert der Muskelbiopsie bei Myositis
Authors: Stadelmann Christine , Zechel Sabrina
Published: June 2019

Gegenstand und Ziel Myositiden stellen eine der häufigsten Indikationen für eine Muskelbiopsie dar, die als wichtigstes morphologisches Untersuchungsverfahren zur Diagnosestellung gilt. Ihr Stellenwert im diagnostischen Prozess ist aber nur unzureichend untersucht.

Material und Methoden In der vorliegenden Arbeit wurden retrospektiv histopathologische Befunde von Muskelbiopsien mit klinischem Verdacht auf Myositis am neuromuskulärem Zentrum Göttingen von 2007 bis 2018 ausgewertet.

Ergebnisse In 27 % aller eingesandten Muskelbiopsien wurde der klinische Verdacht auf eine Myositis geäußert, der sich in ca. einem Drittel der Fälle histologisch bestätigte. Auch wenn eine Myositis histologisch nicht nachgewiesen werden konnte, ergaben sich durch die Muskelbiopsie in 84 % der Fälle weitere diagnostische Hinweise.

Schlussfolgerung Die Muskelbiopsie ist neben der Klinik und dem Antikörperprofil als integraler Bestandteil der Diagnose sowie zur Klassifikation einer Myositis unverzichtbar.

Klinische Relevanz Zur definitiven Diagnosestellung einer Myositis bedarf es der engen interdisziplinären Zusammenarbeit zwischen Klinik, Bildgebung und Neuropathologie.
Successful endoscopic closure of a refractory postoperative rectovaginal fistula
Authors: Matano Yutaka , Zianne Megumi , Omura Hitoshi , Hayashi Noriaki , Miwa Kazuhiro
Published: June 2019

Background and study aims A 71-year old female who received low anterior resection for rectal cancer visited Komatsu Municipal Hospital with complaints of passing feces from the vagina. Endoscopic examination revealed a postsurgical rectovaginal fistula. Medical approaches, including nonoperative management, initial endoscopic closure, transvaginal and endorectal surgery, and fecal diversion, were unsuccessful. Therefore, the patient underwent endoscopy with a pre-procedural endoscopic creation of mucosal pin holes around the fistula opening and clip insertion into the rectal wall in combination with electrocautery and clip closure. This novel approach was effective in achieving permanent closure of the fistula in a single procedure. Most rectovaginal fistulas are surgically managed, however, surgery may be more difficult, invasive, and unsatisfactory for refractory fistulas. Although endoscopic treatment with over-the-scope clips has been increasingly used as a less invasive approach for gastrointestinal fistulas with favorable results, it is not as effective for refractory rectovaginal fistulas. As a minimally invasive surgical procedure, this approach might be effective in small rectovaginal fistulas, particularly refractory ones.
Pulmonary Function Changes Before and After Mitral Valve Surgery in Severe Mitral Stenosis
Authors: Sahu Manoj Kumar , Yadav Mayank , Hote Milind Padmakar , Singh Sarvesh Pal , Choudhary Shiv Kumar
Published: June 2019

Objective This study was undertaken to assess the pulmonary functions in the patients with predominant severe mitral stenosis before corrective mitral valve surgery, then to reassess the same 6 months after surgery and compare them.

Patients and Methods Fifty consecutive patients with predominant severe mitral stenosis undergoing mitral valve replacement surgery were included in this prospective observational study. This study was conducted from July 2016 till January 2018 after obtaining approval from the institute's ethics committee and written consent from all the participants. All the patients were evaluated clinically and divided according to New York Heart Association (NYHA) class symptomatology. Computed spirometric pulmonary function tests (PFTs) such as forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), FEV1/FVC ratio, forced expiratory flow (FEF) 25–75%, peak expiratory flow rate (PEFR), and maximum voluntary ventilation (MVV) were performed on each patient 1 day before and 6 months after surgery.

Results Fifty study patients were analyzed, mean age was 38.4 ± 10.76 years (15–56 years), and male-to-female ratio was 1:1.38 (21 males and 29 females). NYHA class symptoms improved significantly in most of our patients after surgery (p < 0.01). PFTs such as FVC, FEV1, FEV1/FVC ratio, FEF 25–75%, and MVV showed significant improvement 6 months after surgery (p < 0.01). Though PEFR also improved compared with preoperative values, it was not significant statistically (p < 0.07).

Conclusion This study showed that the lung functions are impaired in patients with severe mitral stenosis and improved significantly 6 months after surgery, which does not correlate well with the betterment of NYHA class.
Simultaneous Aortic Valve Replacement with Nephrectomy: A Case Report
Authors: Singh Ajmer , Jain Aashish , Mehta Yatin , Trehan Naresh
Published: June 2019

A 60-year-old man presented to the authors’ institution and underwent simultaneous surgery for severe aortic stenosis and left renal mass. Potential benefits of a combined cardiac and noncardiac procedure are discussed. The literature, however, is scarce on standards of management of patients with two coexisting life-threatening conditions.
Illicit Drugs Breaking One Heart at a Time
Authors: Battisha Ayman
Published: June 2019

Takotsubo cardiomyopathy (TCM) is triggered by multiple physical and psychological stressors and frequently mimics acute coronary syndrome. Acute alcohol intoxication as a trigger for TCM has been rarely reported as TCM is usually associated with alcohol withdrawal, not intoxication. The authors report a 41-year-old woman with polysubstance and alcohol abuse history, who presented with acute alcohol intoxication and electrocardiogram demonstrating ventricular tachycardia with syncope. Laboratory parameters revealed elevated Troponin-I and metabolic acidosis. Coronary angiogram was unrevealing for coronary atherosclerosis and she was managed conservatively for acute heart failure from TCM.
Central Venous Oxygenation for Mixed Venous Oxygen Saturation
Authors: Agarwal Naresh Kumar , Subramanian Arun
Published: June 2019

Venous oxygen saturation has been traditionally used as a marker for tissue hypoxia. A wide range of factors can affect it. Literature abounds with articles on the use of the same in decision making and clinical management of patients in shock. Likewise, the application of venous saturation in patients undergoing cardiac and noncardiac surgery has been demonstrated. The controversy as to whether superior vena cava oxygen saturation can replace the traditional mixed venous oxygen saturation is never ending. Irrespective of the body of evidence, it is recommended that clinical decision should not be based on a single value, and a range of values needs to be incorporated to differentiate a critically ill from a noncritically ill patient.
The Applications of Medical Tattooing in the Head and Neck Region
Authors: Hou Zhe , Lee Patrick K.
Published: June 2019

Medical tattooing has been used in various circumstances. In this review, the authors focus on the utilization of medical tattooing in the head and neck region as a minimally invasive alternative to corrective surgeries. It is mostly used to camouflage noticeable surgical scars on scalp, face, and perioral areas. Its use has also been described in cases of concealing depigmentation or hypopigmentation, hair loss, postirradiation telangiectasia, and congenital vascular malformation. These procedures are well-tolerated and safe. Its effects are long-lasting and satisfactory, leading to improvement in self-esteem and increased quality of life in treated patients. The limitations of medical tattooing in such uses include high technical requirement, color fading and alteration, unpredictable outcomes in scarred tissue, and potential cutaneous reactions. It also carries a risk of infection, albeit very low due to standardized sterilization process in a medical setting. The authors conclude that medical tattooing in the head and neck region may serve as an excellent option for patients who seek for cosmetic improvement in their deformities and/or discoloration but would prefer to avoid surgery.
Dermabrasion for Scars and Wire Loop Electrocautery for Rhinophyma
Authors: Hom David B. , Harmon Jeffrey
Published: June 2019

Dermabrasion and wire loop electrocautery are controlled scalpel-less procedures to remove superficial skin layers to treat dermal surface irregularities. Their postprocedure healing involves healing by secondary intention. The purpose of this paper is to discuss the use of diamond fraise dermabrasion to improve scars and the use of wire loop electrocautery to treat rhinophyma surface irregularities. Both techniques are minimally invasive and low cost, and at the same time, can significantly improve facial skin deformities. An advantage in using wire loop electrocautery for rhinophyma excision is that it is a simple, economic, and very effective technique to sculpt the nose, with minimal intraoperative bleeding. With dermabrasion, pretreatment and postregimens can help improve postprocedure results. Future efforts to modulate the healing from both of these techniques include the potential use of topical growth factors, autologous platelet-rich plasma, or using stem cells to accelerate collagen formation and reepithelization during the postprocedure period.
Chemical Peels: Deep, Medium, and Light
Authors: Starkman Sidney J. , Mangat Devinder S.
Published: June 2019

Chemical peels, laser resurfacing, and dermabrasion all offer unique options for skin resurfacing for rhytids and dyschromias. Laser resurfacing has developed over the previous decades, but it is the chemical peel against which all modern forms of skin resurfacing are measured. Phenol–croton oil peels have been modernized and depend on croton oil concentration to minimize risks. Complications associated with skin resurfacing are uncommon with proper technique and postoperative management.
Palladium(II) Acetate Catalyzed Cyclization–Coupling of (o-Ethynylphenyl)phosphonic Acid Monoesters with Allyl Halides
Authors: Xiao Zecai , Peng Ai-Yun
Published: June 2019

A Pd(OAc)2-catalyzed tandem cyclization–coupling reaction of (o-ethynylphenyl)phosphonic acid monoesters and allyl halides has been developed. This reaction provides an efficient, mild, general and regioselective way to synthesize 4-allylphosphaisocoumarins.
Ex Vivo Assessment of an Ultrasound-Guided Injection Technique of the Lumbosacral Disc in the Horse
Authors: Robert Mickaël , Manet Hadrien , Manneveau Guillaume , Geffroy Olivier
Published: June 2019

Objectives The aim of this study was to describe an ultrasound-guided injection technique of the lumbosacral disc in horses through the cranial vertebral notch of the sacrum and to evaluate both accuracy and potential complications of the technique on equine cadavers.

Materials and Methods Twenty-four injections of the lumbosacral area were performed on 12 equine cadavers shortly after euthanasia under ultrasound guidance with the horse in recumbency using two different dyes (one colour for each side). The lumbosacral area was dissected in each horse and the accuracy of the technique, as well as its potential complications, was evaluated detecting the dyes and the structures that have been coloured.

Results The lumbosacral area was correctly reached in only 11/24 injections. However, this technique allowed a lumbosacral peridiscal injection in 7/12 horses. The main difficulty was reaching the ventral opening of the L6-S1 intervertebral foramen that is partially hidden by the iliac wing on ultrasound. Puncture of the vertebral canal has been observed in 11/24 cases. The L6 spinal nerve roots emerging through the intervertebral foramen could potentially be damaged when inserting the needle.

Clinical Significance The described ultrasound-guided technique allows peridiscal injection in the lumbosacral space in less than 60% of cases with potential sciatic nerve damage. Further investigations are warranted before using this technique in clinical practice in horses suffering from lumbosacral lesions.
Proceduralist Given Sedation is Safe and Feasible in Pediatric Flexible Bronchoscopy
Authors: Bhat Javeed Iqbal , Charoo Bashir A. , Tramboo Zubair Mushtaq , Zahoor Shihab
Published: June 2019

The objective of this research was to study the effectiveness and safety of proceduralist given sedation in pediatric flexible bronchoscopy. Flexible bronchoscopy was performed in all 267 patients. All patients received midazolam and/or ketamine. The median (interquartile range [IQR]) age of the studied population was 16 (18) months. The indication of bronchoscopy varied. The mean ± standard deviation (SD) dose of midazolam was 0.109 (0.03) mg/kg and that of ketamine was 1.17 (0.43) mg/kg. We observed minor side effects of procedural sedation. All patients underwent procedure successfully. Flexible bronchoscopy in children can be safely performed under sedation using a combination of midazolam and ketamine.
MRI and CT Guided Cryoablation for Intracranial Extension of Malignancies along the Trigeminal Nerve
Authors: Lee Thomas C. , Guenette Jeffrey P. , Moses Ziev B. , Lee Jong Woo , Annino Donald J. , Chi John H.
Published: June 2019

Objectives To describe the technical aspects and early clinical outcomes of patients undergoing percutaneous magnetic resonance imaging (MRI)-guided tumor cryoablation along the intracranial trigeminal nerve.

Design This study is a retrospective case review.

Setting Large academic tertiary care hospital.

Participants Patients who underwent MRI-guided cryoablation of perineural tumor along the intracranial trigeminal nerve.

Main Outcome Measures Technical success, pain relief, local control.

Results Percutaneous MRI-guided cryoablation of tumor spread along the intracranial portion of the trigeminal nerve was performed in two patients without complication, with subsequent pain relief, and with local control in the patient with follow-up imaging.

Conclusions Percutaneous MRI-guided cryoablation is a feasible treatment option for malignancies tracking intracranially along the trigeminal nerve.
Digitalisierung: „Wir werden drängeln, wo wir es für nötig halten“
Authors: Doelfs Guntram
Published: June 2019

Prof. Jörg Debatin ist Chairman des neuen Health Innovation Hub (hih) beim Bundesgesundheitsministerium. Im Gespräch mit kma spricht er über mehr Tempo und bessere Vernetzung bei der Digitalisierung, wie der Hub innovative Ideen schneller fördern will – und warum sein Team sich nicht als digitales Feigenblatt für Jens Spahn sieht.
Krankenhausbauplanung: Virtual Reality statt Reißbrett
Authors: Kucera Martin
Published: June 2019

Das Bauen im Bestand ist immer eine Herausforderung. Neben der Medizintechnik müssen auch sämtliche Arbeitsprozesse optimal an die vorgegebenen Räumlichkeiten angepasst sein. Die Erweiterung des Herzkatheter-Labors am Knappschaftskrankenhaus Dortmund wurde daher mit Hilfe von VR-Brillen virtuell geplant. Ein Beispiel, das Schule machen könnte.
Sprechstunde in der PR-Ambulanz: Wie gehe ich mit Klinikbewertungsportalen um?
Authors: Endele Kerstin
Published: June 2019

Kerstin Endele ist zur Hälfte Journalistin und zur Hälfte Biochemikerin. Seit mehr als 15 Jahren ist sie Expertin für Gesundheitskommunikation und war fünf Jahre Kommunikationschefin und Pressesprecherin der Charité. Wenn sie nicht Klinikvorstände aus Krisen rettet und Pressesprechern diverser Krankenhäuser dabei hilft, ein bisschen Strategie ins übliche Chaos zu bringen, betreibt sie mit der PR-Ambulanz (www.pr-ambulanz.com) einen der größten Blogs zur Klinikkommunikation in Deutschland.
Exciton-exciton annihilation in hBN
Authors: Plaud A. , Schué L. , Watanabe K. , Taniguchi T. , Fossard F. , Ducastelle F. , Loiseau A. , Barjon J.
Published: June 2019

Known as a prominent recombination path at high excitation densities, exciton-exciton annihilation (EEA) is evidenced in bulk hexagonal boron nitride by cathodoluminescence at low temperature. Thanks to a careful tuning of the exciton density by varying either the current or the focus of the incident electron beam, we could estimate an EEA rate of 2 × 10−6 cm3 s−1 at T = 10 K, the highest reported so far for a bulk semiconductor. Expected to be even stronger in nanotubes or atomic layers, EEA probably contributes to the luminescence quenching observed in low-dimensionality BN materials.
Chaotic dynamics in a macrospin spin-torque nano-oscillator with delayed feedback
Authors: Williame Jérôme , Difini Accioly Artur , Rontani Damien , Sciamanna Marc , Kim Joo-Von
Published: June 2019

A theoretical study of delayed feedback in spin-torque nano-oscillators is presented. The macrospin geometry is considered, where self-sustained oscillations are made possible by spin transfer torques associated with spin currents flowing perpendicular to the film plane. By tuning the delay and amplification of the self-injected signal, we identify dynamical regimes in this system such as chaos, switching between precession modes with complex transients, and oscillator death. Such delayed feedback schemes open up a field of exploration for such oscillators, where the complex transient states might find important applications in information processing.
Stacked dual beam electron optical system for THz integrated wideband traveling wave tube
Authors: Shao Wei , Xu Duo , Wang Zhanliang , gong Huarong , Lu Zhigang , Duan Zhaoyun , Wei Yanyu , Gong Yubin , Aditya Sheel
Published: June 2019

In this paper, a stacked dual beam electron gun and the associated electron optical system are proposed. The stacked dual beam electron gun includes two compact focusing electrodes which help to achieve dual sheet beams. As an application of this dual beam electron gun, a 340 GHz integrated dual beam traveling wave tube (TWT) based on the staggered dual vane slow-wave structure (SWS) is also put forward. In order to reduce the length of the TWT, a novel input/output coupler is introduced. The overall transmission characteristics of the SWS structure together with the input/output couplers show a wide bandwidth covering a frequency range of 306 GHz to 360 GHz. Based on the parameters obtained for the integrated TWT, a stacked dual-beam electron gun with dual focusing electrodes is designed to achieve a beam current of 43 mA, a beam voltage of 21.4 kV, and a cross-sectional size of each beam of 0.3 mm × 0.08 mm. A uniform magnetic field of 0.52 T is utilized to focus the dual electron beams, and a beam transmission efficiency of 97.1% is achieved over a length of 50 mm. Finally, particle in cell simulation results show that the integrated dual-beam TWT can generate an output power of 5 W over the frequency range of 315 GHz to 350 GHz, with the maximum output power of 24.5 W at 330 GHz.
Steady laminar natural convection of nanofluid under the impact of magnetic field on two-dimensional cavity with radiation
Authors: Saleem S. , Nguyen-Thoi Trung , Shafee Ahmad , Li Zhixiong , Bonyah Ebenezer , Khan A. U. , Shehzadi Iqra
Published: June 2019

In current investigation, steady free convection of nanofluid has been presented in occurrence of magnetic field. Non-Darcy model was utilized to employ porous terms in momentum equations. Working fluid is H2O based nanofluid. Radiation effect has been reported for various shapes of nanoparticles. Impacts of shape factor, radiation parameter, magnetic force, buoyancy and shape impact on nanofluid treatment were demonstrated. Result demonstrated that maximum convective flow is observed for platelet shape. Darcy number produces more random patterns of isotherms.
Viewing the water challenge of PEM fuel cells from a biological perspective
Authors: Frank Jodi Ackerman
Published: June 2019

By introducing the concept of respiration and a way to measure it, researchers offer a fresh approach on the role water plays in proton-exchange membrane fuel cells.
Explorations into the social contexts of neologism use in early
English correspondence
Authors: Säily Tanja , Mäkelä Eetu , Hämäläinen Mika
Published: June 2019

This paper describes ongoing work towards a rich analysis of the
social contexts of neologism use in historical corpora, in particular the
Corpora of Early English Correspondence, with research
questions concerning the innovators, meanings and diffusion of neologisms. To
enable this kind of study, we are developing new processes, tools and ways of
combining data from different sources, including the Oxford English
Dictionary, the Historical Thesaurus, and
contemporary published texts. Comparing neologism candidates across these
sources is complicated by the large amount of spelling variation. To make the
issues tractable, we start from case studies of individual suffixes
(-ity, -er) and people (Thomas Twining). By developing
tools aiding these studies, we build toward more general analyses. Our aim is to
develop an open-source environment where information on neologism candidates is
gathered from a variety of algorithms and sources, pooled, and presented to a
human evaluator for verification and exploration.
Metalinguistic comments and signals
Authors: Svanlund Jan
Published: June 2019

Many neologies receive a large amount of metalinguistic focus during their conventionalization. This includes explicit metalinguistic comments, as well as several ways of emphasizing a new word qua word in running texts, so-calledmetasignals(e.g., quotation marks). This article reports from a large quantitative study of 360 Swedish neologies. It investigates the nature and the amount of metafocus during conventionalization. More than 96% of the neologies received metafocus at least once, but the mean proportion of metafocused citations was low, just under 3.5%. Metafocusing is likely to be more intense in early phases and is likely to decline over time. No long-term effects of metafocusing on the conventionalization process itself were found in corpus data.
Deconstructing (ir)regularity
Authors: Herce Borja
Published: June 2019

Regularity and irregularity are among the most widely invoked notions in linguistics. The terms are backed up by a long and venerable tradition, and yet (or maybe therefore) different disciplines and authors seem to be using them for very different phenomena and in very different ways. The most frequent usage conflates or replaces other notions such as type frequency, productivity, (non-)concatenative morphology, storage vs. computation, predictability, etc. An assessment of these and other variables in Icelandic verbal inflection reveals that most of them are in practice strongly correlated. I conclude, however, that this is largely unsurprising by virtue of the definitional dependencies holding between those notions. It is empirically doubtful whether there exists a single underlying phenomenon or category which the terms designate. In addition, given their multiple and overlapping senses, and the existence of separate, unambiguous labels for the relevant underlying notions, I contend that the terms ‘regular’ and ‘irregular’ should be ideally abandoned in scientific literature in order to avoid ambiguity, sloppy reasoning and misunderstandings and to facilitate cross-linguistic comparison and interdisciplinary dialogue.
Criteria for establishing the inventory of semantic participants and voices in Tagalog
Authors: Klimenko Sergei
Published: June 2019

The number of different voice constructions is controversial in Philippine linguistics. There are two approaches to establishing the voice inventory: (1) based on the number of voice affixes; (2) based on semantics of constructions, using opaque definitions of roles without any formal basis. Tagalog data supports neither approach. Many verbal roots form voice paradigms of up to seven members. The ungroundedness in any formal properties in the second approach often leads to different sets of voices with significant subjective variation. This paper suggests employing formal criteria for establishing an exhaustive inventory of semantic roles and voices in Tagalog: (1) Distinct marking in non-subject position; (2) co-occurrence of voice forms in paradigms; (3) co-occurrence of participants in constructions; (4) existence of a co-referential voice form. 16 participants and 13 voices are established in Tagalog, using the suggested criteria, which also provide a possibility for creating a typology of Philippine voice inventories.
Linguistic typology, language modality, and stuff like that
Authors: Hsieh Chen-Yu Chester
Published: June 2019

Pragmatic particles termedgeneral extenders(GE) have been examined across languages and are found to serve multiple functions. Despite the fruitful findings, few study the use of GEs in different language modalities and in typologically more different languages such as Chinese. This research aims to contribute to this literature by investigating the use of the GEzhilei(de) (zld), ‘of that kind,’ in spoken and written Chinese. Data from corpora of spoken and written Chinese suggest thatzlddisplays some distinctive patterns in its form and function, partly due to the typological traits of Mandarin Chinese. The results also indicate that the language modality wherezldis deployed may have impacts on its structural and functional distribution. The current article thus holds implications not only for the literature of GEs but also for the study of the interface between linguistic typology, language modality, and pragmatic expressions.
Relationships between fiction media, genre, and empathic abilities
Authors: Turner Rose , Felisberti Fatima M.
Published: June 2019

Fiction enables readers to simulate the social experiences of characters and may facilitate prosociality. Research has indicated that fiction print exposure positively relates to empathy and may promote altruistic behaviors. Whether associations hold across different media formats and thematic genres remains unclear. This study took a multidimensional approach to both fiction engagement and empathic abilities. Specifically, it aimed to replicate previous findings that lifetime fiction exposure positively predicts empathy, and to extend this literature through an exploration of the relationships between media and genre formats, empathy and altruism. Participants (N = 404) completed a multidimensional task measure of fiction media exposure and answered questions about fiction engagement, empathic and altruistic tendencies. Results showed divergent associations between fiction format, genre, and empathic abilities, and fiction media exposure positively predicted the tendencies to become transported into narratives and to help others. Engagement with fiction formats and thematic genres may differentially support adults’ prosocial development.
The Childhood and Adolescent Taxon Scale – Self-Report: Validity Among Male and Female Youths from Forensic and School Contexts
Authors: Pechorro Pedro , Seto Michael C. , Alberto Isabel , Ray James V. , Simões Mário R.
Published: June 2019

This study provides the first examination of the Childhood and Adolescent Taxon Scale – Self-report (CATS-SR) proxy measure of the persistent antisocial behavior dimension of psychopathy, based on childhood and adolescent history, in a European context and with female youth. The CATS-SR is evaluated in a sample of 1,134 male and female youth recruited from forensic or school settings in Portugal. The CATS-SR did not significantly differ for male and female youth seen in forensic settings, but was higher in male than female youth recruited from schools, and higher in youth seen in forensic than in school settings. The CATS-SR was positively and moderately correlated with self-report psychopathy construct measures that included items tapping interpersonal and affective facets of psychopathy such as callousness and impulsivity. It also correlated as expected with age of first criminal contact, crime seriousness, conduct disorder diagnosis, drug use, and having unprotected sex. The findings suggest that the CATS-SR has discriminant, convergent, and criterion-related validity, and could therefore be useful in assessments of the persistent antisocial dimension of psychopathy.
XLF extends its range from DNA repair to replication
Authors: Gonzalez-Rodriguez Yanira , Bunting Samuel F.
Published: June 2019

The close interplay between DNA replication and repair is underscored by a report from Chen et al. (2019. J. Cell Biol. https://doi.org/10.1083/jcb.201808134) in this issue. The authors demonstrate that the non-homologous end-joining factor XLF promotes the stability of replication forks.
Can timber provision from Amazonian production forests be sustainable?
Authors: Piponiot Camille , Rödig Edna , Putz Francis E , Rutishauser Ervan , Sist Plinio , Ascarrunz Nataly , Blanc Lilian , Derroire Géraldine , Descroix Laurent , Guedes Marcelino Carneiro , Coronado Euridice Honorio , Huth Andreas , Kanashiro Milton , Licona Juan Carlos , Mazzei Lucas , d’Oliveira Marcus Vinicio Neves , Peña-Claros Marielos , Rodney Ken , Shenkin Alexander , de Souza Cintia Rodrigues , Vidal Edson , West Thales A P , Wortel Verginia , Hérault Bruno
Published: June 2019

Around 30 Mm3 of sawlogs are extracted annually by selective logging of natural production forests in Amazonia, Earth’s most extensive tropical forest. Decisions concerning the management of these production forests will be of major importance for Amazonian forests’ fate. To date, no regional assessment of selective logging sustainability supports decision-making. Based on data from 3500 ha of forest inventory plots, our modelling results show that the average periodic harvests of 20 m3 ha−1 will not recover by the end of a standard 30 year cutting cycle. Timber recovery within a cutting cycle is enhanced by commercial acceptance of more species and with the adoption of longer cutting cycles and lower logging intensities. Recovery rates are faster in Western Amazonia than on the Guiana Shield. Our simulations suggest that regardless of cutting cycle duration and logging intensities, selectively logged forests are unlikely to meet timber demands over the long term as timber stocks are predicted to steadily decline. There is thus an urgent need to develop an integrated forest resource management policy that combines active management of production forests with the restoration of degraded and secondary forests for timber production. Without better management, reduced timber harvests and continued timber production declines are unavoidable.
Decision Making Strategy For Decreasing The Potential Hazards of Work Accidents at Division R&D Using SWOT And AHP Methods
Authors: Rimantho D , Elistiani A , Sundana S , Sundari AS
Published: June 2019

PT. XYZ has various divisions, one of them is the R&D division. This division is responsible for research and innovation. The highest impact on accidents caused by a worker injured and bleeding around 14.29%. In addition, the highest potential hazards are raw material spill around 14.29%. Thus, the purpose of this paper is to identify the factors potentially that lead to the high potential hazards in the R&D division. In addition, it also formulates the alternative to decision-making strategies. The research method used the SWOT method and AHP to determine the priority to selecting strategies for reducing the potential for occupational hazards. This study used the questionnaires and distributed among five experts in the company. The result shows that the strategy of Weakness-Opportunity (WO) is the highest weight around 3.38. Then, the calculation by using the AHP method obtained that monitoring and evaluation of occupational health and safety through improvement of Work Instruction became the main priority is equal to 0.32. The AHP method also showed the consistency value of approximately 0.09. Therefore, further research is needed to evaluate the alternatives chosen.
Risk Management Analysis Using FMECA and ANP Methods in the Supply Chain of Wooden Toy Industry
Authors: Tanjung W N , Atikah S A , Hidayat S , Ripmiatin E , Asti S S , Khodijah R S
Published: June 2019

Risk is a factor that has a potential to occur in every part of an industry, including its supply chain. Every industry must consider and manage its supply chain risks in order to minimize losses while improving performance. In this study, a supply chain risk management (SCRM) approach was conducted in the supply chain of wooden toy industry as a way to minimize the impact of risk. In this case, SCRM method is done by identifying risks, assessing risks using the failure mode effect criticality analysis (FMECA) method to determine the risk priorities that must be mitigated, and establish strategies to mitigate the risk with analytical network process (ANP) method. Thus, the risk priority in the wooden toy industry’s supply chain is the cost/price risk with the highest WRPN value of 33,379. In order to mitigate the cost/price risk, conducting strategic accounting practices and financial planning are recommended to be considered as its strategies.
Internet Addiction among Indonesia University Students: Musculoskeletal Symptoms, Physical and Psychosocial Behavior Problems
Authors: Pratama G B , Widyanti A
Published: June 2019

The explosive growth of the internet has led to pathological use, also known as internet addiction. A lot of countries have reported increased number of internet addiction among teenagers and the negative effects of it. Purpose of this study is to observed prevalence of internet addiction and the musculoskeletal symptoms (MSS), physical, and psychosocial behavior problems among sample of Indonesian university students. Seven hundred and fifteen Indonesian university students (meanage = 20.9 year,SD= 2.52 year, 290 female) participated voluntarily in this study by filing out a set of questionnaires consist of internet addiction test (IAT) questionnaire, Nordic body map to observe MSS, and a questionnaire about physical and psychosocial problems. The prevalence of internet addiction among Indonesian university students were 3.2 %, whereas 61% of the samples were categorized as having problem with internet. As predicted, higher internet addiction was accompanying with higher MSS. Most participants (> 50%) were reporting MSS in upper neck, lower neck, right shoulder, back, and waist. higher internet addiction also shows higher physical and psychosocial behavior problems. This study confirms number of general prevalence of internet addiction in teenagers. Result of this study also strengthen the fact of negative effects of intense use of internet not only for physical and musculoskeletal, but also for psychosocial wellbeing.
The Mental Workload Analysis of Staff in Study Program of Private Educational Organization
Authors: Prabaswari Atyanti Dyah , Basumerda Chancard , Utomo Bagus Wahyu
Published: June 2019

The mental workload affects productivity workers to accomplish the task. Staff has many tasks that not only main task but additional task. The additional task is from superior in the same place or the other place. The SOP for duties and distribution of task is not clear so the fatigue can affect to productivity. The method to measure mental workload is NASA-TLX. NASA TLX has six indicators: mental demand, physical demand, temporal demand, performance, frustration, and effort. The analysis not only based on result of NASA TLX but also using statistic test. The result is performance indicator is high that described the staff not satisfied with their job has done. The staff not satisfy but the effort has been taken out is very high. The result of Mann Whitney is not different with two group of the period long term of working which divided in < 7 years and >7 years. The result of correlation test is if the staff make more effort, the satisfaction for their tasks has been done is bigger. The regression test produces an equation but cannot be used to calculation or prediction the staff mental workload. Because regression coefficient is not significant (not usable). The solution is staff must divide the task. Dissatisfaction can reduce motivation and the members cannot perform well.
Situation Awareness Analysis on Motorcycle Riders using Quantitative Analysis of Situational Awareness
Authors: Soewardi Hartomo , Ayu Kiranti Amalia Diah
Published: June 2019

A Traffic accident is caused by the negligence and the low situation awareness of the motorcycle riders. Based on the Indonesian Police traffic data, until May 2018, there were 32,127 motorcycle accidents with 6,009 people died. The highest accidents happened to the riders between 15-19 years old. Thus, feasibility of the motorcycle riders becomes crucial. The purpose of this study is to determine the level of awareness of the motorcycle riders as well as to determine the minimum age level to ride motorcycle. There were 75 respondents participating in this study who were about 17 to 19 years old. The Quantitative Analysis of Situational Awareness method was used to achieve the objective. The results of this study show that 17 years old riders have better situation awareness level than 18 years old ones. Meanwhile, the best situation awareness level is at age 19. It is because of the value of calibration (12.22%) which is smaller than 17 years old (17.52%) and 18 years old riders (26.48%). Therefore, this study recommends the feasibility of motorcycle riders should be 19 years old as the minimum requirement.
Design of Tofu Cutting Tools to Improve Repetitive Tasks Using OCRA
Authors: Haulian Siboro Benedikta Anna , Afma Vera Methalina , Purbasari Annisa , Kasim Muhammad Qodri
Published: June 2019

Cutting process is one of processes in producing tofu before being packaged and marketed. Generally, cutting tofu is performed manually using a ruler with repetitive movements as 20-24 times, therefore it required longer time to cut and cause low back pain (LBP) in workers. Present study objective is to analyze the risk of work with repetitive task in the process of cutting tofu and designing tools to reduce these risks without decreasing the quality of the tofu. The methodology use OCRA and anthropometry which performed on two tofu factories (Mr. Joko and Mr. Udin) in Batam, as research subject. The results showed that repeated movements during tofu cutting were carried out for 33-35 seconds, with the percentage higher at hands work and waiting times in seconds. Furthermore, the OCRA risks of repetitive movements assessment is classified as medium-risk conditions (3.8-4.48). However, it is necessary to repair the cutting tools. Improvements are gained by designing cutting tools in accordance with the operator’s hand anthropometry. The new tofu cutting tool produces only 2 times repetitive movements, which is lesser and using OCRA assessment the level of movement risk becomes optimal (≤ 1.5).
Fatigue-related differences in human facial dimensions based on static images
Authors: Triyanti V , Yassierli  , Iridiastadi H
Published: June 2019

Automatic fatigue recognition based on eye and mouth movements has been widely researched and used to detect human fatigue. However, there were only few studies that quantitatively examining fatigue status based on static images. This study was a pilot study that aimed to examine differences in human facial dimension between fresh and fatigue condition, based on photos. 4 photos from 8 subjects were taken, each photo depicted the subject in fresh condition with a neutral expression, fresh condition with a happy expression, fatigue condition with neutral expression, and fatigue condition with happy expression. Each photo was analyzed using Face Reader 7.1 software to detect the coordinates of the points around the eyes and mouth. 10 dimensions around the eyes were calculated for each situation. In neutral expressions, paired t-test with significance value of 0.05 proved that in 8 dimensions, value in fresh conditions were different from ones in fatigue conditions. But these results were not proven in the picture with happy expressions. Although further research is needed, this finding could be a first step for developing the knowledge to detect fatigue based on facial static images.