bluuebunny/crossref_metadata_2025 huggingface dataset:
Point-ahead analysis and pre-pointing link stability study of intersatellite laser communication
Authors: Fu-rui Zhang  , Jun-feng Han  , Ping Ruan
Published: May 2020

The static bias error angle obviously affects pre-pointing links’ stability in the presence of vibration in intersatellite laser communication. The 2nd order point-ahead angle is a source of misalignment which was ignored in most solutions, and this is the concern of our paper. In this study, we present a further analytical investigation into the point-ahead angle in complex satellite maneuvering environment. Static bias error angle induced by the 2nd order point-ahead angle has been studied under different intersatellite links. The probability density function of the pre-pointing links’ outage has been derived in the presence of pointing jitter taking consideration of the static bias angle, and the link budget has also been analyzed. Simulation model of link stability has been established to verify the numerical results by the Monte Carlo method in Matlab-Simulink environment. The results have shown that the 2nd order point-ahead angle has a significant detrimental impact on link stability in long distance links. It is a neglectable factor. This work is dedicated to intersatellite laser communication system design.
Depth dependent X-ray diffraction of porous anodic alumina films filled with cubic YAlO3:Tb3+ matrix
Authors: Serafińczuk Jarosław , Pawlaczyk Łukasz , Podhorodecki Artur , Gaponenko Nikolai , Molchan Igor , Thompson George
Published: May 2020

The presented paper deals with the measurement methodologies of the structural properties of porous anodic alumina (PAA) films filled with YAlO3:Tb3+ composite using X-ray diffraction, atomic force microscopy and scanning electron microscopy. It shows that the deposited material does not uniformly fill the porous volume of the anodic alumina film and the part of it forms a thick layer on the PAA surface. The aim of this work is to show the differences in the XRD response obtained at different angles of incidence of the excitation beam for the PAA/YAlO3:Tb3+ system. Furthermore, this simple approach enables separation of the signal from both regions on the surface and inside the PAA pores, providing more accurate data interpretation. It reveals that the crystallization of the material on the PAA surface and within the pores is different.
Im Dickicht der Erinnerung: Deutungsversuche einer Kindheitserinnerung aus Goethes Dichtung und Wahrheit
Authors: Hutmacher Fabian
Published: May 2020

Wenn wir von uns selbst erzählen, dann erzählen wir Geschichten. Das bedeutet nicht zwangsläufig, dass wir Dinge erfinden, aber allein aufgrund der Tatsache, dass wir aus der Fülle dessen, was uns tagtäglich zustößt, das herausschälen müssen,
was wir für erinnerns- und berichtenswert halten, werden wir zu Interpreten unserer selbst. Wir erzählen aber auch, weil die reine Aufzählung von Fakten uns die Frage nach dem Wie und Warum unseres Tuns nicht zu beantworten vermag. Indem wir erzählen, wird
aus einer Aneinanderreihung von Erlebnissen eine kohärente Lebensgeschichte, ein biographischer Gesamtentwurf, der sich nachzeichnen und verstehen lässt. Solche Lebensgeschichten sind freilich keine statischen Gebilde: Sie ändern sich mit der Zeit – weil wir uns
ändern, weil unser vergangenes Ich die eigene Biographie anders interpretiert als unser gegenwärtiges Ich, weil uns heute andere Dinge wichtig sind als sie es gestern waren oder morgen sein werden. Aber nicht nur das: Auch die gegenwärtige Version unseres biographischen Gesamtentwurfs
ist flexibel. Je nachdem, wem wir von uns erzählen, werden wir Anpassungen vornehmen, manches aussparen und anderes besonders ausführlich abhandeln. Bei alldem bewegen wir uns nicht im luftleeren Raum, sondern in einem spezifischen kulturellen Kontext, der unsere Erzählungen
formt. In jeder Kultur gibt es bestimmte Arten von Erzählungen, die man gerne hört – und solche, die als verpönt gelten. Was eine gute Geschichte ist, hängt von den Normen und Werten einer Gesellschaft ab. Selbstverständlich muss man diese Konstruktionsvorschriften
nicht sklavisch befolgen. Man kann sie auch hintergehen, sich gegen sie auflehnen. Aber selbst in diesem Fall kommt man nicht umhin, sie zur Kenntnis zu nehmen und sich zu ihnen zu verhalten – und sei es nur, um gegen sie zu rebellieren. Das sind – knapp zusammengefasst –
die Überlegungen des amerikanischen Psychologen Dan P. McAdams zu der Frage, welche Prinzipien Menschen bei der Erzählung ihres eigenen Lebens leiten.1 Was aber bedeuten diese Erkenntnisse der narrativen Psychologie für die Interpretation autobiographischer literarischer
Texte?
Die erotische Dimension des Werkes Richard Wagners
Authors: Wenzel Eugen
Published: May 2020

Es ist für das adäquate Verständnis des gesamten Schaffens Richard Wagners keineswegs unentbehrlich, sondern sogar zwingend erforderlich zu klären, wie genau er sich zur Sexualität verhalten hat. Die nachfolgenden Ausführungen widmen sich dieser Fragestellung
auf der Grundlage seiner theoretischen Schriften, Briefe und Libretti und mit Hilfe einer vorangeschalteten groben Skizze einiger zentraler Aspekte des sexuellen Emanzipationsprozesses des Abendlandes, da Wagners Haltung gegenüber der Sexualität tief in diesem Diskurs verwurzelt
ist und deswegen erst aus ihm heraus erklärbar wird. Dabei wird sich unter anderem zeigen, dass Wagner in so manchem Punkt keine Positionen vertritt, die als für ihre Zeit neu und besonders bezeichnet werden könnten. Insofern bietet der vorliegende Text nicht unbedingt weiterreichende
Einblicke in den abendländischen Sexualdiskurs, als z.B. ein vergleichbarer Beitrag zu Johann Wolfgang Goethe oder Heinrich Heine. Allerdings liefert er im Hinblick auf andere Aspekte durchaus erkenntniserweiternde Einsichten. Zum einen verortet er Wagner in dem genannten Diskurs und
zum anderen strebt er auf einer breiten Textbasis Klarheit hinsichtlich der bis dato von der Forschung unbefriedigend beantworteten, jedoch keineswegs unwichtigen Frage an, welchen Stellenwert die Sexualität in der Gedankenwelt dieser herausragenden und einflussreichen Persönlichkeit
des 19. Jahrhunderts tatsächlich besitzt.
The Environmental Problems of Azerbaijan and the Search for Solutions
Authors: Bayramli Gadir
Published: May 2020

Environmental issues are one of the current challenges for Azerbaijan. Industrial pollution emerging since the 1870s with the expansion of oil exploration operation in Baku and surrounding areas reached larger scale in some places during the following periods. During the Soviet period oil operations in the Caspian Sea increased when the scope of the problem widened, and the pollution reached an even larger scale during oil extraction and transportation. Oil refineries are located in densely populated areas of Baku and this is one of the main factors causing expansion of the scale of pollution. Oil pollution covers thousands of hectares of lands just in the Absheron Peninsula itself. Along with the industrial pollution, the pollution in agricultural areas in Azerbaijan has also emerged mainly in the Soviet period. The excessive amount of fertilizer and pesticides used in cotton fields and lack of proper irrigation are considered to be among the main factors of environmental pollution. The impact of environmental damages caused by the Gabala Radar Station built in the Soviet times is still being felt now. Effective environmental policy, providing the enterprises with purifiers, contributions of non-governmental organizations, promotion of environmental awareness and use of the best practice of developed countries can contribute to the solution of the environmental problems. The most serious environmental problems of Azerbaijan are connected with the occupation of the Azerbaijani territories by Armenia. Armenia has destroyed the forest resources in the occupied territories. Moreover, Basitchay National Reserve, which is located in the occupied Zangilan region and is unique in the world, has been destroyed, and other natural sites have been damaged in the region. Large amount of metal waste thrown from the Armenian metallurgical plants into Okhchuchay River has made its way to Araz River and become a source of serious pollution. Toxic substances thrown into Tartar River are another source of concern. In order to solve the environmental problems in Azerbaijan, it is necessary to carry out an effective state policy, undertake new scientific researches, study best practices of advanced countries, and establish new and up-to-date environmental standards.
Laser Guiding of Three Phase Tesla Coil High Voltage Discharges
Authors: Kristiyana Samuel , Dwanurendra Dilan
Published: May 2020

Guiding and triggering of discharges from a three phase Tesla coil type 280 kHz AC high voltage source using filaments created by a femtosecond Terawatt laser pulse. Without the laser the discharges were maximum 30 cm long. With the laser straight, guided discharges up to 110 cm length were detected. The discharge length was limited by the voltage amplitude of the Tesla coil. A significant reduction of the breakdown voltage threshold due to the pre-ionization of the air gap by laser pulse filamentation was observed. The lifetime of filaments is measured by using time-resolved fluorescence spectrum, and the lifetime of filaments generated by dual fs laser pulses was doubled due to the re-ionization by the succeeding pulse
Fuzzy Expert System for Recognition of Power Quality Disturbances
Authors: Kanirajan P. , Joly M.
Published: May 2020

This paper presents a new approach to detect and classify power quality disturbances in the power system using Fuzzy C-means clustering, Fuzzy logic (FL) and Radial basis Function Neural Networks (RBFNN). Feature extracted through wavelet is used for training, after training, the obtained weight is used to classify the power quality problems in RBFNN, but it suffers from extensive computation and low convergence speed. Then to detect and classify the events, FL is proposed, the extracted characters are used to find out membership functions and fuzzy rules being determined from the power quality inherence. For the classification,5 types of disturbance are taken in to account. The classification performance of FL is compared with RBFNN.The clustering analysis is used to group the data in to clusters to identifying the class of the data with Fuzzy C-means algorithm. The classification accuracy of FL and Fuzzy C-means clustering is improved with the help of cognitive as well as the social behavior of particles along with fitness value using Particle swarm optimization (PSO),just by determining the ranges of the feature of the membership funtion for each rules to identify each disturbance specifically.The simulation result using Fuzzy C-means clustering possess significant improvements and gives classification results in less than a cycle when compared over other considered approach.
ПРО ДІЯЛЬНІСТЬ ВІДДІЛУ ПОЧАТКОВОЇ ОСВІТИ ІНСТИТУТУ ПЕДАГОГІКИ НАПН УКРАЇНИ ЩОДО РЕАЛІЗАЦІЇ ДЕРЖАВНОГО СТАНДАРТУ ПОЧАТКОВОЇ ОСВІТИ
Authors: Onopriienko Oksana
Published: May 2020

Розкрито основні напрями діяльності вчених відділу початкової освіти Інституту педагогіки Національної академії педагогічних наук України, пов’язаної із запровадженням Концепції реалізації державної політики у сфері реформування загальної середньої освіти «Нова українська школа», зокрема — Державного стандарту початкової освіти. Зазначено, що наукові працівники відділу: створювали нормативні документи для початкової школи — Державний стандарт, типові освітні програми; розробили методичні рекомендації щодо викладання навчальних предметів в умовах Нової української школи; створили підручники з української мови і читання, математики, курсу «Я досліджую світ» для 1, 2 і 3 класів; популяризують наукові розробки на освітянських заходах, у науково-методичних публікаціях. Розкрито роль вчених відділу у всеукраїнському експерименті з пілотування Державного стандарту, зокрема — про навчальне і методичне забезпечення уроків математики в експериментальних класах. Надано інформацію про проведені в Інституті педагогіки НАПН України курси за програмою підвищення кваліфікації педагогічних і науково-педагогічних працівників «Методика формування математичної компетентності учнів початкової школи». Окремим напрямом діяльності стала підтримка вчителів та учнів в умовах дистанційного навчання під час карантину.
Мотивация к дистанционному изучению иностранных языков как вызов современности и слагаемое успеха
Authors: Leshutina I.A.
Published: May 2020

Статья актуализирует проблему мотивации, которая остается главным вектором для любого человека в достижении поставленных целей, в том числе и образовательных. Дистанционный формат обучения иностранным языкам также заостряет проблему поддержания мотивации и вовлеченности в образовательный процесс как учащихся, так и преподавателей. Все это показывает, что необходимо рассматривать и анализировать плюсы и минусы дистанционного обучения иностранным языкам, определять его значимую направленность на развитие инновационных технологий, выявлять и классифицировать трудности, видеть причины возникновения возможных рисков, связанных со снижением мотивации. Решение проблемы видится в особой системе мер воздействия на мотивацию в виртуальной образовательной среде, что отвечает вызовам сегодняшнего дня.

The article actualizes the problem of motivation, which has always been and remains the main vector in achieving the goals, including educational ones, for any person. The distance format for teaching foreign languages also raises the problem of maintaining the motivation and involvement of both students and teachers in the educational process. All this plunges into the need to consider and analyze the pros and cons of distance learning foreign languages, to determine its significant focus on the development of innovative technologies, to identify and classify difficulties, to see the causes of possible risks associated with a decrease in motivation. The solution to the problem is seen in a special system of measures to influence motivation in the virtual educational environment, which meets the challenges of today.
Дистанционное тестирование по русскому языку детей-билингвов
Authors: Kalenkova O.N.
Published: May 2020

В статье описана дистанционная система тестирования детей-билингвов по русскому языку на уровни В1 и В2, включающая 6субтестов на каждом уровне. Даны краткие комментарии к заданиям испособам их оформления. Изложены принципы составления тестовых заданий, ориентированных на дистанционную форму иопределенный возраст тестируемых.

A remote testing system for bilingual children in the Russian language is presented. It comprises 6 subtests for levels B1 and B2 in each. Brief comments are given on assignments and means of their presentation. The principles of test items formation focused on the remote form and a certain age of the tested are described.
Оптимизация процесса обучения на русском языке: интерактивно-коммуникативный подход
Authors: Teremova R.M.
Published: May 2020

В представленных учебных материалах предлагается методическая модель обучения иностранных учащихся речевому общению на русском языке по теме Возраст , базирующаяся на интерактивно-коммуникативных принципах обучения инофонов русскому языку. Предлагаемая система обучения способствует развитию коммуникативных навыков обучаемых, приобщению их кнормам и традициям коммуникативного поведения с представителями российского социума. Учебные материалы рассчитаны на учащихся, владеющих русским языком как иностранным вобъеме второго сертификационного уровня.

The provided materials include methodical model of teaching verbal communication in Russian to foreigners on the topic The Age . The methodical model is based on the interactive and communicative principals of teaching Russian language to foreign students. The training system promotes the development of communicative skills of the learners, introduces them to norms and traditions of Russian communicative behavior. The training system is aimed at learners with Russian competence at B2 level.
Vorhofflimmern
Authors: Ebrahimi Ramin , Haegeli Laurent
Published: May 2020

Bei der Mehrheit der Kranken mit einem Vorhofflimmern ist eine wirksame Thromboembolie-Prophylaxe die wichtigste therapeutische Massnahme. In den aktuellen Leitlinien wird empfohlen, eine orale Antikoagulation mit Nicht-Vitamin-K-abhängigen oralen Antikoagulantien durchzuführen, wobei eine sorgfältige Individualisierung indiziert ist. Besonders eine Mehrfachhemmung der Blutgerinnung mit oralen Antikoagulantien und Plättchenhemmern stellt ein erhebliches Blutungsrisiko dar. Neben der An-tikoagulation können verschiedene Interventionen (Verschluss des linken Vorhofohrs, Katheterablation) sowie Antiarrhythmika in Betracht gezogen werden.
La pobreza y la caridad como mercancías en la prensa católica del siglo XIX dirigida a mujeres
Authors: Pacheco Roldán Adriana
Published: May 2020

En este trabajo, se analiza las marcas retóricas en periódicos católicos de la segunda mitad del siglo XIX dirigidos a asociaciones de mujeres, que legitiman un discurso donde la pobreza y a la caridad son presentadas como mercancías y vistas como objetos que homogeneizan el gusto de la sociedad, mediante el uso de una publicidad similar a la que se hace para promocionar bienes de consumo. Esto, contrariamente a lo que el catolicismo predica, conformar una sociedad más equitativa, refuerza el incipiente capitalismo implícito en el discurso liberal en la inevitable transición de la sociedad de un sistema colonial al capitalismo. El estudio muestra que estos discursos codifican las interacciones entre diversos segmentos de la población legitimando la existencia de un escalafón social más mercantilizado que refuerza la dependencia entre clases y categorías, y crea nuevos espacios sociales de convivencia de acuerdo al género. De igual forma se analiza la manera en que estos discursos igualan la educación de la mujer con la de los pobres.
STRATEGIES AND OPERATION PRINCIPLES OF LOGISTIC INFORMATION SYSTEMS
Authors: Smagulova A. , Tentekbayeva Zh. , Abdin A.
Published: May 2020

Over the last few years the so-called new logistic technologies are rapidly developed. Information systems hold the central position in these technologies. Development of logistics in the developed countries not least are stimulated with the need of fast reaction of producers to market condition, aspiration to adapt in the changing situations in short time. The central idea of logistics is planning, management and control of entrepreneurial activity, all material and information flows connected with this activity. Information systems in logistics assume fast appropriate response to the market demand, tracking delivery time, optimization of functions in chains of delivery and supply. The research of modern backbone of information technologies in logistics is conducted in this article. Modern information technologies in logistics are analyzed. Modern technologies of information data processing in logistic streams and creation of logistic information technologies are also considered in the article. Some types of information technologies in logistics, structural principles and principles of operation of logistic information systems and also problems in the process of creation of logistic information technologies are described. The article is addressed to a wide range of researchers and experts in the field of logistics and information technologies.
Modelling Public and Private Enforcement
Authors: Barker Kit
Published: May 2020

Achieving a workable, hybrid model of competition law enforcement that is sensitive to both instrumental and non-instrumental ends and which commands broad, cross-jurisdictional support always struck me as a tall order. For one thing, it required a keen understanding of the nature of competition law wrongs, which sit awkwardly at the turnstile between public and private law. The enforcement processes of competition law have also evolved in very different social and historical contexts, the United States being an environment in which regulatory agencies have historically been regarded with scepticism (if not downright distrust) and Europe being a centralised bureaucracy in which they have tended to be regarded as the paradigm. Most challengingly of all, the project required a theory of ‘holism’ capable of explaining how it is possible to reconcile complex moral, economic and social objectives within a singular enforcement system, or (more accurately) within a linked network of distinct law enforcement systems.
Deterrent Penalties for Corporate Colluders
Authors: Beaton-Wells Caron , Clarke Julie
Published: May 2020

A critical review of corporate pecuniary penalties for cartel conduct in Australia is timely if not overdue. Debates about the role of individual sanctions notwithstanding, financial penalties against corporations remain the predominant means of sanctioning cartel conduct in this country as elsewhere. These sanctions are therefore the primary mechanism by which deterrence is sought to be achieved. Consistent with the international position, deterrence has long been accepted as the primary, if not exclusive, rationale for cartel sanctions in Australia.
Antitrust Damages in EU Law
Authors: Albors-Llorens Albertina
Published: May 2020

The adoption of Directive 2014/104/EU on actions for damages for infringements of the competition rules has marked the beginning of a new era in the field of the private enforcement of the EU competition rules. The arduous legislative journey leading to the adoption of the Directive, the specific aspects pertaining to the exercise of damages actions covered by it and its attempt to establish an effective coordination between the systems of public and private enforcement have already received intense attention by antitrust scholars. However, this contribution will focus on the study of the Directive’s significance as a novel legal instrument in both the fields of EU competition law and EU law in general.
Chemistry of Temperate Super-Earth and Mini-Neptune Atmospheric Hazes from Laboratory Experiments
Authors: Moran Sarah E. , Hörst Sarah M. , Vuitton Véronique , He Chao , Lewis Nikole K. , Flandinet Laurène , Moses Julianne I. , North Nicole , Orthous-Daunay François-Régis , Sebree Joshua , Wolters Cédric , Kempton Eliza M.-R. , Marley Mark S. , Morley Caroline V. , Valenti Jeff A.
Published: May 2020

Very little experimental work has been done to explore the properties of photochemical hazes formed in atmospheres with very different compositions or temperatures than those of the outer solar system or of early Earth. With extrasolar planet discoveries now numbering thousands, this untapped phase space merits exploration. This study presents measured chemical properties of haze particles produced in laboratory analogs of exoplanet atmospheres. We used very high-resolution mass spectrometry to measure the chemical components of solid particles produced in atmospheric chamber experiments. Many complex molecular species with general chemical formulas C
w
H
x
N
y
O
z
were detected. We detect molecular formulas of prebiotic interest in the data, including those for the monosaccharide glyceraldehyde, a variety of amino acids and nucleotide bases, and several sugar derivatives. Additionally, the experimental exoplanetary haze analogs exhibit diverse solubility characteristics, which provide insight into the possibility of further chemical or physical alteration of photochemical hazes in super-Earth and mini-Neptune atmospheres. These exoplanet analog particles can help us better understand chemical atmospheric processes and suggest a possible source of in situ atmospheric prebiotic chemistry on distant worlds.
United Kingdom’s contribution to European research output in biomedical sciences: 2008–2017
Authors: Tan Raoul , Sijbrands Eric
Published: May 2020

Background: On 31 January 2020, the United Kingdom (UK) formally left the European Union (EU). Only a short transition period, until 31 December 2020, is available to negotiate collaborations for research in biomedical sciences and health care. Within the European scientific community, two opinions are common: 1) Brexit is an opportunity to obtain more funding at the expense of the departing British; and 2) UK colleagues should continue to collaborate in EU scientific efforts, including Horizon Europe and Erasmus+. To provide evidence for more informed negotiations, we sought to determine the contribution of the UK to EU’s research in biomedical sciences.

Methods: We performed a macro level scientometric analysis to estimate the contribution of the UK and EU member states, including those associated with EU-funding (EU+) namely Albania, Armenia, Bosnia-Herzegovina, Faroe Islands, Georgia, Iceland, Israel, Macedonia, Moldova, Montenegro, Norway, Serbia, Switzerland, Tunisia, Turkey, and Ukraine, to preclinical, clinical and health sciences. We searched the Web of Science database to count the total number of scientific publications and the top 1% most cited publications in the world between 2008 and 2017, calculated the performance efficiency by dividing the top 1% by the total number, and calculated the odds ratios to create a ranking of performance efficiency. We then compared the contribution of the UK to all the EU+ -based publications and the top 1% to the contributions of the ten EU member states with the largest biomedical research output and also compared the respective contributions to EU+ publications that resulted from collaborations with other regions in the world.

Results: We found 2,991,016 biomedical publications from EU+ during 2008–2017, of which 19,019 (0.64%) were in the world’s top 1% of the most cited publications. The UK produced 665,467 (22.3%) of these publications and had over two and a half times more top 1% most cited publications than the EU+ (odds ratio 2.79, 95% CI 2.71–2.88, p< 0.001). The UK’s share in the EU+ co-publications with regions outside Europe ranged between 23.0% for the Arab League and 50.6% for Australia and New Zealand and its share of the top 1% ranged between 48.6% for the USA and Canada and 70.7% for the African Union.

Conclusions: The UK contributed far more highly cited publications than the rest of the EU+ states and strongly contributed to European collaborations with the rest of the world during 2008–2017. This suggests that if the UK ceases to participate in EU scientific collaborations as a result of Brexit, the quantity and quality of EU’s research in biomedical sciences will be adversely affected.
Écarts de fécondité en fonction du niveau d’instruction : le rôle de la religion en Grande-Bretagne et en France
Authors: Peri-Rotem Nitzan
Published: May 2020

La fécondité baisse et l’infécondité augmente généralement avec le niveau d’instruction des femmes. On ne sait pas vraiment si un niveau d’études supérieures implique un comportement reproductif identique chez les femmes selon les confessions et les pratiques religieuses. Cette étude utilise des données issues de l’Enquête par panel auprès des ménages britanniques (BHPS) et du volet français de l’enquête Generations and Gender (GGS) ou Erfi, afin d’explorer les interactions entre la religion (mesurée par la pratique, l’appartenance à la religion catholique en France, au protestantisme et au catholicisme en Grande-Bretagne), le niveau d’instruction et la fécondité des femmes nées entre les années 1920 et 1960. En Grande-Bretagne, un niveau d’études élevé diminue plus souvent les probabilités de maternité chez les femmes appartenant à une religion que les autres, qu’elles soient ou non pratiquantes (cet effet d’interaction n’est pas retrouvé en France). Mais dans les deux pays, la religiosité atténue la relation négative entre le niveau d’instruction et la taille des familles. Alors que, pour les femmes sans appartenance religieuse, la relation est globalement négative, on constate une relation en U chez les catholiques pratiquantes. Les disparités de descendance finale selon l’appartenance et la pratique religieuses sont plus prononcées chez les femmes les plus instruites, certainement à cause de perceptions différentes de la valeur et du coût des enfants.
Nursing Home Residents' Perceptions of the Quality of Their Care
Authors: Grau Lois , Chandler Barbara , Saunders Cindy
Published: May 2020

This pilot study employed qualitative interviews to assess nursing home residents' perceptions of their "best" and "worst" experiences in the nursing home. Findings suggest residents are least satisfied with the care provided by nurse aides, and most satisfied with that provided by professional staff members. The quality of interpersonal relationships with staff was the basis for the majority of both residents' best and worst experiences. Qualitative analyses identified specific "adaptive responses" that were associated with how residents interpreted and responded to negative experiences with care.
Antecedents That Influence the Intention to Use the Uber Mobile Application: Customer Perspectives in South Africa
Authors: Maziriri Eugine Tafadzwa , Mapuranga Miston , Mushwana Justice , Madinga Nkosivile Welcome
Published: May 2020

In today’s postmodern era, there is phenomenal growth in the use of smartphones, GPS as well as Internet. This has given a rise to a revolution in the business world and the revolution is focused on conducting business on the move usually by mobile commerce applications. The study sought to determine the impact of perceived convenience, facilitation conditions, social influence and price value on the intention to the use an Uber application.  A quantitative methodology was utilised and the research concentrated specifically on consumers, located in the Johannesburg area and using of a non-probability convenience sample. A self-administered questionnaire was designed based on the scales used in previous studies. The statistical data analysis procedures utilised for the quantitative study were descriptive statistics, correlation analysis, reliability analysis, structural equation modelling approach by means of the partial least squares structural equation modelling approach. The hypotheses testing results revealed that the intention to use an Uber application was influenced significantly and positively by perceived convenience, facilitation conditions, social influence and price value.  The study authenticates those factors such as perceived convenience, facilitating conditions, social influence and price value are instrumental in stimulating the intention to use the Uber application. Lastly, based on the findings of this study, limitations were discussed along with the recommendations and concluding remarks.
Smartphone Technology Applications for Milkfish Image Segmentation Using OpenCV Library
Authors: Qashlim Akhmad , Basri Basri , Haeruddin Haeruddin , Ardan Ardan , Nurtanio Inggrid , Ilham Amil Ahmad
Published: May 2020

This research presents the use of smartphone technology to assist fisheries work. Specifically, we designed an Android application that utilizes a camera connected to the internet to detect RGB image objects and then convert them to HSV and gray scale. In this paper, Android-based smartphone technology using image processing methods will be discussed, a digital tool that provides fish detection results in the form of length, width, and weight used to determine the price of fish. This application was created using features provided by the OpenCV library to produce binary images. Three main challenges highlighted during application design including C ++ QT were used to build the user interface, the contour-active method was used to divide and separate image objects from the back-ground, while the clever edge edge method was used to improve the outline ap-pearance of objects. Both methods are implemented on the Android platform and utilize smartphone cameras as an identification tool. This application makes it possible to provide many benefits and great benefits for farm farmers but on the other hand will create technological gaps
ìSPEAK: Using Mobile-Based Online Learning Course to Learn ‘English for the Workplace’
Authors: M. Rafiq Karmila Rafiqah , Hashim Harwati , Md Yunus Melor , Norman Helmi
Published: May 2020

Due to the rise of the digital era, various industries demand employees with a proficient communicative English skills, but many are still not up to par with the demands. One solution for this is to provide communicative English trainings for employees, especially support staffs, yet face-to-face trainings have many limitations, which can be overcome through mobile learning. Due to the fact that mobile learning can be accessed anytime and anywhere by anyone, the Massive Online Open Courses (MOOC) is one of the platforms that can be used to curb the issue. This paper aimed to identify the perceptions of support staffs towards using ‘ìSPEAK: English for the Workplace’ in MOOC. A total of 30 respondents were selected through purposive sampling and a survey through a 4-point Likert scale questionnaire was given out. The main findings showed that overall, the support staffs have a positive attitude towards using ìSPEAK. Nevertheless, half of them were unsure of the reliability of the sources available in the course. However, the findings of this study implied that ìSPEAK could be one of the training alternatives for support staffs to improve and increase their communicative ability. Future research can look into designing and developing various modules of communicative English in various mobile learning platforms, which could cater to different levels of proficiency of learners.
Ship Main Engine Lubricating Oil System’s Reliability Analysis by Using Bayesian Network Approach
Authors: Ait Allal Abdelmoula , Melhaoui Yousra , Kamil Abdelali , Mansouri Khalifa , Youssfi Mohamed
Published: May 2020

The friction of ship main engine mechanical moving parts, combined with the internal combustion of fuel, generate a great amount of heat, leading to the increase of their running temperature and acceleration of their wear. If the temperature and wear phenomena are not controlled and kept within the maker’s thresholds, it will result in a partial or total damage of the propulsion system. However, the oil lubrication system plays a vital role in reducing the friction of the moving parts and ensuring their cooling and cleaning. Therefore, it must be reliable enough and continuously available for a safe operation of the main engine. This work aims at studying the main engine lubrication oil system’s reliability. This will be achieved through using Bayesian Network method, in order to identify the system components weak points to improve their reliability and to propose a highly reliable system that may either be installed on board of a conventional ship or an autonomous ship. The benchmark of the improved system and the formal system shows a significant enhancement in reliability that has become close to 1. In the case of an autonomous ship, this system must operate autonomously without human intervention. An autonomous and remote monitoring system concept is proposed. In case of system failure or need of change of its functioning parameters, the shore control center team takes over the control and executes the necessary adjustment remotely.
Effect of Inclined Magnetic Field and Heat Transfer in a Walter’s B Fluid over a Stretching Sheet with Elastic Deformation
Authors: Ragavan C. , Munirathinam S. , Hakeem A.K. Abdul , Nayak Manoj K. , Makinde Oluwole Daniel
Published: May 2020

This article deals with the heat transfer in a Walter’s liquid B fluid through a stretching sheet subject to elastic deformation. We have incorporated the combined effects of aligned magnetic field and viscous dissipation. The effect of viscous dissipation regulating the heat transfer is considered. In addition, prescribed power law surface temperature and prescribed power law surface heat flux boundary conditions are introduced. The transformed non-linear coupled governing equations are solved analytically using hyper geometric function. The effects of various embedded pertinent parameters on velocity and temperature profiles are well discussed with the aid of appropriate graphs and tables. Our results are verified with previously published results of some noteworthy researchers. It is found that the augmenting aligned magnetic field strength reduces the flow velocity and the related momentum boundary layer thickness.
Nursing Workload Associated With Fever in the General Intensive Care Unit
Authors: Kiekkas Panagiotis , Sakellaropoulos George C. , Brokalaki Hero , Manolis Evangelos , Samios Adamantios , Skartsani Chrisula , Baltopoulos George I.
Published: May 2020

Background Fever in a patient in the intensive care unit necessitates several nursing tasks. Moreover, factors associated with increased patient care needs may be associated with fever.

Objective To identify relationships between fever and characteristics of fever and nursing workload at the patient level.

Methods A prospective study was conducted in a medical-surgical intensive care unit. The sample consisted of 361 patients consecutively admitted from October 2005 to August 2006. Each patient’s body temperature was measured by using a tympanic membrane or an axillary thermometer. The Therapeutic Intervention Scoring System-28 was used to measure nursing workload.

Results A total of 188 patients (52.1%) had fever. Mean daily scores on the Therapeutic Intervention Scoring System and on 5 of its 7 categories were significantly higher for febrile patients than for nonfebrile patients. Fever was an independent predictor of the mean daily scores for all patients (P < .001). Peak body temperature but not duration of fever also was an independent predictor of mean daily scores for febrile patients (P < .001).

Conclusion In a general intensive care unit, fever in patients should be taken into consideration for the proper allocation of nursing personnel.
Thermal Burn Injury Generates Bioactive Microvesicles: Evidence for a Novel Transport Mechanism for the Lipid Mediator Platelet-Activating Factor (PAF) That Involves Subcellular Particles and the PAF Receptor
Authors: Liu Langni , Fahy Katherine E. , Awoyemi Azeezat A. , Thapa Pariksha , Kelly Lisa E. , Chen Jay , Bihl Ji C. , Cool David R. , Chen Yanfang , Rapp Christine M. , Johnson R. Michael , Travers Jeffrey B.
Published: May 2020

Thermal burn injuries are an important environmental stressor that can result in considerable morbidity and mortality. The exact mechanism by which an environmental stimulus to skin results in local and systemic effects is an area of active research. One potential mechanism to allow skin keratinocytes to disperse bioactive substances is via microvesicle particles, which are subcellular bodies released directly from cellular membranes. Our previous studies have indicated that thermal burn injury of the skin keratinocyte in vitro results in the production of the lipid mediator platelet-activating factor (PAF). The present studies demonstrate that thermal burn injury to keratinocytes in vitro and human skin explants ex vivo, and mice in vivo generate microvesicle particles. Use of pharmacologic and genetic tools indicates that the optimal release of microvesicles is dependent upon the PAF receptor. Of note, burn injury-stimulated microvesicle particles do not carry appreciable protein cytokines yet contain high levels of PAF. These studies describe a novel mechanism involving microvesicle particles by which a metabolically labile bioactive lipid can travel from cells in response to environmental stimuli.
Therapeutic CMP-Nonulosonates against Multidrug-Resistant Neisseria gonorrhoeae
Authors: Gulati Sunita , Schoenhofen Ian C. , Lindhout-Djukic Theresa , Schur Melissa J. , Landig Corinna S. , Saha Sudeshna , Deng Lingquan , Lewis Lisa A. , Zheng Bo , Varki Ajit , Ram Sanjay
Published: May 2020

Neisseria gonorrhoeae deploys a unique immune evasion strategy wherein the lacto-N-neotetraose termini of lipooligosaccharide (LOS) are “capped” by a surface LOS sialyltransferase (Lst), using extracellular host-derived CMP-sialic acid (CMP-Neu5Ac in humans). LOS sialylation enhances complement resistance by recruiting factor H (FH; alternative complement pathway inhibitor) and also by limiting classical pathway activation. Sialylated LOS also engages inhibitory Siglecs on host leukocytes, dampening innate immunity. Previously, we showed that analogues of CMP-sialic acids (CMP-nonulosonates [CMP-NulOs]), such as CMP-Leg5,7Ac2 and CMP-Neu5Ac9N3, are also substrates for Lst. Incorporation of Leg5,7Ac2 and Neu5Ac9N3 into LOS results in N. gonorrhoeae being fully serum sensitive. Importantly, intravaginal administration of CMP-Leg5,7Ac2 attenuated N. gonorrhoeae colonization of mouse vaginas. In this study, we characterize and develop additional candidate therapeutic CMP-NulOs. CMP-ketodeoxynonulosonate (CMP-Kdn) and CMP-Kdn7N3, but not CMP-Neu4,5Ac2, were substrates for Lst, further elucidating gonococcal Lst specificity. Lacto-N-neotetraose LOS capped with Kdn and Kdn7N3 bound FH to levels ∼60% of that seen with Neu5Ac and enabled gonococci to resist low (3.3%) but not higher (10%) concentrations of human complement. CMP-Kdn, CMP-Neu5Ac9N3, and CMP-Leg5,7Ac2 administered intravaginally (10 μg/d) to N. gonorrhoeae–colonized mice were equally efficacious. Of the three CMP-NulOs above, CMP-Leg5,7Ac2 was the most pH and temperature stable. In addition, Leg5,7Ac2-fed human cells did not display this NulO on their surface. Moreover, CMP-Leg5,7Ac2 was efficacious against several multidrug-resistant gonococci in mice with a humanized sialome (Cmah−/− mice) or humanized complement system (FH/C4b-binding protein transgenic mice). CMP-Leg5,7Ac2 and CMP-Kdn remain viable leads as topical preventive/therapeutic agents against the global threat of multidrug-resistant N. gonorrhoeae.
Opsonization-Enhanced Antigen Presentation by MR1 Activates Rapid Polyfunctional MAIT Cell Responses Acting as an Effector Arm of Humoral Antibacterial Immunity
Authors: Boulouis Caroline , Gorin Jean-Baptiste , Dias Joana , Bergman Peter , Leeansyah Edwin , Sandberg Johan K.
Published: May 2020

Mucosa-associated invariant T (MAIT) cells are innate-like antimicrobial T cells recognizing a breadth of important pathogens via presentation of microbial riboflavin metabolite Ags by MHC class Ib–related (MR1) molecules. However, the interaction of human MAIT cells with adaptive immune responses and the role they may play in settings of vaccinology remain relatively little explored. In this study we investigated the interplay between MAIT cell–mediated antibacterial effector functions and the humoral immune response. IgG opsonization of the model microbe Escherichia coli with pooled human sera markedly enhanced the capacity of monocytic APC to stimulate MAIT cells. This effect included greater sensitivity of recognition and faster response kinetics, as well as a markedly higher polyfunctionality and magnitude of MAIT cell responses involving a range of effector functions. The boost of MAIT cell responses was dependent on strongly enhanced MR1-mediated Ag presentation via increased FcγR-mediated uptake and signaling primarily mediated by FcγRI. To investigate possible translation of this effect to a vaccine setting, sera from human subjects before and after vaccination with the 13-valent–conjugated Streptococcus pneumoniae vaccine were assessed in a MAIT cell activation assay. Interestingly, vaccine-induced Abs enhanced Ag presentation to MAIT cells, resulting in more potent effector responses. These findings indicate that enhancement of Ag presentation by IgG opsonization allows innate-like MAIT cells to mount a faster, stronger, and qualitatively more complex response and to function as an effector arm of vaccine-induced humoral adaptive antibacterial immunity.
Alulah Taibel (1892-1984) a remarkable ornithologist, aviculturist and zoo-biologist
Authors: Gippoliti Spartaco
Published: May 2020

Alula Taibel has been an Italian zoologist of Austrian- Yemenite origin. After having served the Italian Army, he graduated in Natural Sciences at Bologna University in 1925. He was later director of the Poultry Station at Rovigo and scientific director of the Turin Zoological Garden. As to our knowledge no overview of his scientific work has never been published, a synthesis is here presented together with an almost complete list of his papers. Taibel has been one of the major experts on the Galliformes of the Cracidae family and therefore his papers on them are of particular relevance for ornithologists.
Using exercise to protect physical and mental health in youth at risk for psychosis
Authors: Firth Joseph , Schuch Felipe , Mittal Vijay A.
Published: May 2020

A large body of literature has demonstrated that exercise interventions can improve a broad range of outcomes in people with established schizophrenia, including reducing psychiatric symptoms, increasing cognitive functioning, and improving physical health. Furthermore, these benefits seem just as pronounced in first-episode psychosis. However, there have been few clinical studies to date examining the effects of exercise in those found to be ‘at-risk’ of psychosis, particularly for those meeting the criteria for ‘Clinical High Risk’ (CHR) state (a classification which includes both those meeting the ‘ultra-high risk for psychosis’ criteria and/or those with ‘atrisk mental states’). This is surprising, as a proportion of those in the CHR state go on to develop psychotic disorders, and a growing body of evidence suggests that early interventions in this period have significant potential to improve the course of illness. In this article, we shall review the existing literature for i) exercise as an adjunctive intervention for those treated for psychosis; ii) exercise as a standalone intervention in CHR groups; and iii) the rationale and supportive evidence for widescale use of exercise to preserve physical and mental health in those identified as at risk for psychosis. From this, we will put forth how the CHR phase represents an under-researched but highly-suitable timepoint for administering structured exercise interventions, in order to improve physical, psychological and neurocognitive outcomes; while also potentially reducing the odds of transition to full-threshold psychotic disorders. Following this, directions, recommendations and considerations around both the clinical implementation and future research around exercise in CHR individuals will be discussed.