bluuebunny/crossref_metadata_2025 huggingface dataset:
Multiple strokes and cerebral microangiopathy in a patient with Churg-Strauss syndrome
Authors: Văcăraș Vitalie , Radu Roxana-Maria , Cucu Enia , Mureșanu Dafin Fior
Published: January 2021

Eosinophilic granulomatosis with polyangiitis (EGPA) is a multisystemic disease that mainly affects the lungs and skin. It is considered to be a small and medium-vessel vasculitis. Although neurologic manifestations of EGPA are reported, usually consisting of peripheral neuropathy, central nervous system manifestations are quite rare, those described being cerebral infarctions or hemorrhages.

 We present the case of a 79-year-old woman diagnosed in 2016 with EGPA, being treated with Prednisone and Azathioprine, who presented to the Neurological Emergency Department with right hemiplegia, dysmetria in the left arm and right hemi-hypoesthesia. CT (computed tomography) and MRI (Magnetic resonance imaging) findings on admission described lacunar strokes. The patient presented with low creatinine clearance on admission (positive for chronic renal disease), grade III hypertension, ischemic cardiomyopathy and right calf deep vein thrombosis. The patient was started on neuroprotective and neurotrophic treatment associated with parenteral hydration, anticoagulant and hypotensive drugs .  The patient’s symptoms partially improved, with possibility of independently maintaining a sitting position and upright stance with unilateral sustenance at discharge.

Patients suffering from vasculitides must be carefully observed in order to prevent or treat complications that may emerge.
Study of the stress state of the sleeper base and sleepers of rail track with accounting variable conditions of their resting
Authors:   Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, Hovorukha V.V. , Hovorukha A.V. ,   Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, Kizilov V.K. ,   Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, Sobko T.P. ,   Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, Semidetnaia L.P. ,   Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine
Published: January 2021

The live problem of the stress state of the sleeper base and rail sleepers is considered in the article with taking into account specific normal and specific shear stresses under variable conditions of the sleepers resting on the base. The methodology is aimed at the determination of the mutual influence of normal (compressive) and tangential (shear) specific stresses on formation of stability due to the displacement of individual parts of the base. Stability zones and shear zones of the sleeper base parts are also determined by the authors at different conditions of the sleeper resting on the base. Further, zones with insecure position of the base under the sleepers are found when they and their under-rail parts continuously rest on the base. It is stated that insecure position of the base is formed when specific shear stresses excess specific stresses of shear resistance, which consists of specific friction and specific cohesion between the parts in the base. It is also established that loss of stability of the ballast particles causes their displacement in the direction of the action of specific shear stresses. In these zones, density and rigidity of the sleeper base decreases leading to a gradual redistribution of reactive resistance of the base along the sleeper, and, depending on this redistribution, a change in the bending moments acting on the sleeper occurs. It is found that when the sleepers rest only by their under-rail parts, shear stresses and forces, as well as stresses and shear resistance forces under the middle part of the sleepers are distributed in such a way that shear forces exceed resistance forces up to the depth of 60 cm from the sleepers sole. This phenomenon leads to the displacement of ballast particles under the middle part of the sleeper, consolidation of the ballast and resting of the sleepers by their middle part with possible cracks formation. In the end sections of the sleepers, there is also a loss of ballast stability. Recommendations for improving stability indicators of the sleeper base and strength of the sleepers are given. The obtained results of the study can be used for the mine, industrial and railway transport.
Determination of critical inclination angle for the conveyer with pressure belt
Authors:   Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, Kiriia R.V. , Monastyrskyi V.F. ,   Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, Smirnov A.M. ,   Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, Mostovyi B.I. ,   Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine
Published: January 2021

Today , steeply inclined belt conveyors with pressure belt are widely used in the world for transporting bulks. According to the literature, critical angle of these conveyors inclination varies from 35º to 90º. However, there is no sufficiently justified value of critical conveyor inclination angle. In this work, critical inclination angle of conveyor with pressure belt was determined for different states of the bulk on the conveyor depending on linear load of the bulk on the conveyor belt and the bulk properties. It was assumed that tangential stresses at each point of the bulk were balanced by the bulk gravity force projected towards the direction of conveyor belt movement and did not exceed critical tangential stresses in the bulk medium. In addition, the Coulomb's law of friction was applied for the forces of the bulk friction against the conveyor carrying and pressure belts. In this article, the authors consider cases when coefficient of the bulk internal friction is greater than coefficients of the bulk friction against conveyor carrying and pressure belts, and when coefficient of the bulk internal friction is less than coefficient of the bulk friction against the conveyor carrying belt. As a result of solving the obtained systems of the equilibrium equations for each of the above cases, the dependences of critical inclination angle of conveyor with pressure belt on the linear load of the bulk and linear weight of the pressure belt, as well as on coefficients of the bulk friction against the carrying and pressure conveyor belts and coefficient of the bulk internal friction load were determined. Analysis of the obtained dependencies showed that critical inclination angle of conveyor with pressure belt decreases with increase of linear load of the transported bulk. With an increase of coefficients of bulk friction against the conveyor carrying and pressure belts and coefficient of the bulk internal friction, critical inclination angle of conveyor with pressure belt increases. Besides, with increase of ratio between the pressure belt linear load and the bulk linear load, critical inclination angle of conveyor with pressure belt increases and tends to 90° when increase of this ratio is unlimited.
Neonates Born to Mothers With COVID-19: Data From the Spanish Society of Neonatology Registry
Authors: Sánchez-Luna Manuel , Fernández Colomer Belén , de Alba Romero Concepción , Alarcón Allen Ana , Baña Souto Ana , Camba Longueira Fátima , Cernada Badía María , Galve Pradell Zenaida , González López María , López Herrera M. Cruz , Ribes Bautista Carmen , Sánchez García Laura , Zamora Flores Elena ,   on behalf of the SENEO COVID-19 Registry Study Group
Published: January 2021

OBJECTIVES:

To describe neonatal and maternal characteristics of the largest prospective cohort of newborns from mothers with coronavirus disease 2019 (COVID-19), the data of which were prospectively collected from the nationwide registry of the Spanish Society of Neonatology.

METHODS:

Between March 8, 2020, and May 26, 2020, the data of 503 neonates born to 497 mothers diagnosed with COVID-19 during pregnancy or at the time of delivery were collected by 79 hospitals throughout Spain.

RESULTS:

Maternal symptoms were similar to that of the general population, with 5% of severe forms. In 45.8% of asymptomatic women at the time of delivery, severe acute respiratory syndrome coronavirus 2 infection was detected because of recommendations established in Spain to perform COVID-19 screening in all women admitted to the hospital for labor. The rate of preterm deliveries was 15.7% and of cesarean deliveries, 33%. The most common diagnostic test was detection of viral RNA by polymerase chain reaction of nasopharyngeal swabs at a median age of 3 hours after delivery (1–12 hours). Almost one-half of neonates were left skin-to-skin after delivery, and delayed clamping of umbilical cords was performed in 43% of neonates. Also, 62.3% of asymptomatic neonates were managed with rooming-in. Maternal milk was received by 76.5% of neonates, 204 of them as exclusive breastfeeding.

CONCLUSIONS:

The current study indicates that there is no need for separation of mothers from neonates, allowing delayed cord clamping and skin-to-skin contact along with maintenance of breastfeeding in a high percentage of newborns from mothers with COVID-19.
Analysis of IT and industry 4.0 technologies as facilitators of internationalization and business performance
Authors: Leon Garcia Omar Alexánder , Baez Landeros Eliana Rocio
Published: January 2021

The impact of Information Technology (IT) in organizations has attracted the attention of professionals and academics in recent years. This article analyses the relation between the use of IT and the technologies of Industry 4.0 with internationalization and business performance. Through a study of 168 companies in Bogotá city, different regression analyses have been carried out according to the research model proposed to estimate the effects of the determined variables. It is evident that companies with a greater degree use of IT present a greater degree of international activity. Likewise, the study established a model that demonstrates the direct relation between the use of IT and industry 4.0 technologies with business performance. For the statistical analysis the R studio software has been used.
Bearing capacity and settlement prediction of multi-edge skirted footings resting on sand
Authors: Gnananandarao Tammineni , Khatri Vishwas Nandkishor , Dutta Rakesh Kumar
Published: January 2021

This paper presents the application of artificial neural networks (ANN) and multivariable regression analysis (MRA) to predict the bearing capacity and the settlement of multi-edge skirted footings on sand. Respectively, these parameters are defined in terms of the bearing capacity ratio (BCR) of skirted to unskirted footing and the settlement reduction factor (SRF), the ratio of the difference in settlement of unskirted and skirted footing to the settlement of unskirted footing at a given pressure. The model equations for the prediction of the BCR and the SRF of the regular shaped footing were first developed using the available data collected from the literature. These equations were later modified to predict the BCR and the SRF of the multi-edge skirted footing, for which the data were generated by conducting a small scale laboratory test. The input parameters chosen to develop ANN models were the angle of internal friction (ϕ) and skirt depth (Ds) to the width of the footing (B) ratio for the prediction of the BCR; as for the SRF one additional input parameter was considered: normal stress (𝛔). The architecture for the developed ANN models was 2-2-1 and 3-2-1 for the BCR and the SRF, respectively. The R2 for the multi-edge skirted footings was in the range of 0,940-0,977 for the ANN model and 0,827-0,934 for the regression analysis. Similarly, the R2 for the SRF prediction might have been 0,913-0,985 for the ANN model and 0,739-0,932 for the regression analysis. It was revealed that the predicted BCR and SRF for the multi-edge skirted footings with the use of ANN is superior to MRA. Furthermore, the results of the sensitivity analysis indicate that both the BCR and the SRF of the multi-edge skirted footings are mostly affected by skirt depth, followed by the friction angle of the sand.
Analytical construction of the projectile motion trajectory in midair
Authors: Chudinov Peter , Eltyshev Vladimir , Barykin Yuri
Published: January 2021

A classic problem of the motion of a projectile thrown at an angle to the horizon is studied. Air resistance force is taken into account with the use of the quadratic resistance law. An analytic approach is mainly applied for the investigation. Equations of the projectile motion are solved analytically for an arbitrarily large period of time. The constructed analytical solutions are universal, that is, they can be used for any initial conditions of throwing. As a limit case of motion, the vertical asymptote formula is obtained.  The value of the vertical asymptote is calculated directly from the initial conditions of motion. There is no need to study the problem numerically. The found analytical solutions are highly accurate over a wide range of parameters. The motion of a baseball, a tennis ball, and a shuttlecock of badminton are presented as examples.
LA CIVILIZACIÓN DE LOS CUERPOS: LAS PEDAGOGÍAS SEXUALES Y DE GÉNERO EN LA EDUCACIÓN PRIMARIA COSTARRICENSE
Authors: Gamboa Barboza María Isabel
Published: January 2021

Tras un análisis de discurso y con el objeto de estudiar los mecanismos disciplinares de las sexualidades y los géneros existentes en los programas de la educación primaria costarricense, se sugiere que estos son producto de dos tendencias discursivas: una liberal y otra conservadora. A diferencia de los hallazgos de una investigación que se realizó anteriormente, con programas producidos a lo largo de más de cuatro décadas, en la que predominó un tipo de rechazo a la diversidad sexual, en los actuales, el conservadurismo tiene untinte especialmente misógino.
GLOBALIZACIÓN, DESARROLLO Y REFORMAS ESTRUCTURALES. ÁFRICA Y LOS PAES EN LOS AÑOS 80
Authors: Rossi Ignacio Andrés
Published: January 2021

En el presente trabajo se propone abordar el contexto y la aplicación de los Planes de Estabilización Económica y Ajuste Estructural (paes) implementados en el continente africano durante la década del 80. El objetivo de este trabajo es poner en diálogo tres facetas de análisis en torno a la literatura y los informes sobre el tema: globalización, endeudamiento y aplicación de planes de estabilización económica. Para ello se analizan y contrastan diferentes trabajos sobre el tema obedeciendo a la estructura de la propuesta. Se ha podido constatar que los paes constituyen un elemento de primer orden para explicar parte del devenir económico en la región.
IMPROVING THE PRECISION OF FLOW-SENSITIVE LIFETIME ANALYSIS
Authors:   Department of Programming Languages and Compilers, Faculty of Informatics, Eotv ¨ os Lor ¨ and University, Budapest, Hungary, HORVATH Gabor , PATAKI Norbert
Published: January 2021

Object lifetimes are a common source of bugs in C++ that can cause crashes, unexpected behavior, or even security vulnerabilities. Herb Sutter, the chair of the C++ standard committee proposed a flow-sensitive analysis to catch lifetime errors statically. Sadly, this analysis is prone to false positives unless the author follows some specific guidelines. We developed mitigations to eliminate some classes of false positives to make it easier to write conforming code. The first mitigation fixes a common false positive from a frequently used coding pattern by introducing local path-sensitivity. The second one is a filter based on reaching definitions and dominance algorithms to remove reports that might be the result of analyzing infeasible paths. We tested the effectiveness of the methods on the open source Google Fuchsia project.
DARMA - INFORMATION SYSTEM FOR ACCESSING LHC DATA WITHIN THE ALICE EXPERIMENT AT CERN
Authors:   Department of Cybernetics and Artificial Intelligence, Faculty of Electrical Engineering and Informatics Technical University of Kosice, Letna 9, 042 00 Kosice, Slovakia, JADLOVSKÝ Jan , TKÁČIK Milan , JADLOVSKÁ Slávka , PÁNIK Michal
Published: January 2021

The paper deals with the implementation of systems for remote data access in cooperation with the international laboratory CERN in Geneva. The first part discusses extensions of the DARMA information system for archive management. The main goal of this paper is to design and enhance the system with new functionalities and solve known shortcomings, and thus qualitatively increase the potential of the DARMA system in the context of the ALICE DCS (Detector Control System). The final part of the paper deals with the analysis of historical data and the design of a system for the anomaly and failure detection in the infrastructure of high voltage channels within the TRD detector (Transition Radiation Detector).
CHANNEL ALLOCATION FOR WIRELESS NETWORKS BASED ON INTELLIGENT METHOD
Authors:   Department of Electronics and Multimedia Communications, Faculty of Electrical Engineering and Informatics, Technical University of Kosice, Bozeny Nemcovej 32, 042 00 Kosice, Slovakia, NEZNÍK Dominik , DOBOŠ Ľubomír
Published: January 2021

In this paper, will be presented actual research of the intelligent channel allocation. The intelligent channel allocation is based on combination of fuzzy logic method and game theory attributes to increase quality of link in network. The channel allocations will become an important phenomenon in different types of networks such as 5G technology, wireless networks (IEEE 802.11xx), Z-Wave, LoRa, 3G, 4G, etc. In the near future, new network technologies, Internet of Things (IoT) and Smart Cities will need to have intelligent channel allocation to prevent interference on the channels used for data transfer. These networks along with IoT are considered as promising technology, that interconnects different types of networks into one fully functional network. The aim of this paper is to present the concept of a methods for channel allocation in wireless networks, where channels work as communication medium based on IEEE 802.11xx technology. The simulations prove, that proposed method is able to provide lower interference, improve data rates and increase quality of links.
A GSM MODULE-BASED SMART ELECTRIC METER READER
Authors:   Nile University of Nigeria, Department of Computer Engineering, Abuja Nigeria, OSANAIYE Opeyemi , UNOGWU Sunday ,   Federal University of Technology, Minna Niger State, Nigeria, AINA Folayo ,   School of Psychology and Computer Science, University of Central Lancashire, United Kingdom
Published: January 2021

The traditional and estimated billing system of electric energy consumed in most part of Sub-Saharan Africa has become a lingering issue to the electricity consumers. This has therefore necessitated the advent of smart electric meters. In this work, we propose a smart electric meter reader that provides an efficient and economically viable technique for measuring the consumption of electricity. This proposed method tends to solve many issues of the traditional reading system, such as reading efficiency, accuracy, and the elimination of human interface. Our proposed method, consisting of a GSM module, is used to wirelessly communicate the smart meter readings to the electricity provider and the consumer in form of a text message. The results obtained from the evaluation of this work show that our proposed method has improved the accuracy of the meter reading process for proper accountability.
OVERVIEW OF OPTIMIZATION ALGORITHMS FOR UAVS POSITIONING
Authors:   Department of Electronics and Multimedia Communications, Faculty of Electrical Engineering and Informatics, Technical University of Košice, Němcovej 32, 040 01 Košice, Slovak Republic, STOSIL Adrián , VOLOŠIN Marcel ,   Department of Computers and Informatics, Faculty of Electrical Engineering and Informatics, Technical University of Košice, Letná 9, 042 00 Košice, Slovak Republic, MAKSYMYUK Taras ,   Department of Telecommunications, Lviv Polytechnic National University, Ukraine, BUGÁR Gabriel ,   Department of Electronics and Multimedia Communications, Faculty of Electrical Engineering and Informatics, Technical University of Košice, Němcovej 32, 040 01 Košice, Slovak Republic
Published: January 2021

Mobile broadband networks can provide a reliable and flexible communication channel. User requirements can come with different levels of specificity. The widespread application of unmanned aerial vehicles (UAVs, commonly known as a drones) introduces possibilities of use in modern upcoming mobile networks; for example, 5G and 6G, to achieve and support various use cases from low latency to high bandwidth scenarios. For reliable command and control communication, mobile networks can provide flexible differentiated QoS matching the needed reliability, latency and throughput. Many end user equipment connected to the same base station can overload the system and may cause the network to be unavailable. Also, in case the fixed infrastructure is partially decommissioned, destroyed or the network is congested and the system capacity is not sufficient, it is appropriate to use autonomous drones as mobile base stations to ensure well signal coverage of the affected area. The aim of this work is to overview of optimization algorithm developed to provide the best drones’ locations. We compared the techniques of minimization of the number of drones needed to cover users located in a given area with respect to the time required to calculate the optimal positions of the drones.
Regular polygons in 2D objects shape description
Authors: Kwinta Andrzej , Bac-Bronowicz Joanna
Published: January 2021

Many real 3D objects have complex geometric shapes in various types of analyses. Image of these objects is recorded in the form of a 2D map. In the analysis, a simplification of this image to basic 2D figures with defined geometry is often needed. The paper presents an analysis of the geometry of a flat image (an image of a 3D object) using regular polygons. Geometry properties (F form, C centroid, S size) were determined to describe the object. Various criteria of selection of the ‘best’ regular n-sided polygon for a given 2D object (solved theoretically) were put forward. In the paper, criteria for describing a 2D object by regular n-sided polygons were defined on the basis of determining the measure of object shape elongation (e). In the ‘blind’ theoretical example, it was tested whether the individual shape measures listed in the paper allow for correct identification of the shapes of given 2D objects. The practical application of measures is illustrated by two actual examples. While in the first example the shape of the Canary Islands is analysed, the second example describes the shape of Poland’s borders. Actual examples deliver different results for different measures. In effect, there is no clear objective criterion for selecting a polygon shape. The simplifications of the shape of an object presented in the paper should not be equated with the object's generalization. Such simplifications are used in GIS to visualize geographic analyses based on the data available in the primary database, because the object will retain the character of the shape in the simplest possible geometry and neighborhood, and does not lose any of the scope and accuracy of the attributes assigned to a given object in the database.
The use of web application in monitoring the effects of introducing of lower meadows in Kraków’s city parks
Authors: Bedla Dawid , Halecki Wiktor
Published: January 2021

Flower meadows provide opportunities for parks in city centres. Urban green areas combine elements of both natural and human origin, such as planning projects of management entities of green areas. Usually, these parks are compact and easy to separate, with objects intended for active and passive recreation, fully utilising the surroundings. On the basis of available planning documents and maps, the number, size and quality of green areas, including flower meadows in city parks, were determined. By examining the parks’ functional and spatial structure, it is possible to identify the areas in vicinity of which they are located, as well as their purpose and nature. A web application could raise awareness of the role and importance of flower meadows in city parks as an element of public space. For this reason it is currently very important to preserve green areas by surveying the plant structure and dominant phytocoenoses, creating natural maps that present and collect data on the richness of green areas. When analysing the distribution of selected types of city parks, it is possible to observe the dependence of their location to the central parts of cities. The web application presents the distribution of green areas in the urban planning. The application will allow collecting data, which can enable creating a green infrastructure of the Kraków city centre and suburbs, and in the future to show eco-urban aspects in a cartographic form. In the next phase, the application will be extended to a description of the species of meadow plants occurring in city parks. It will not only add didactic elements to the urbanscape, but will also allow for conducting natural field activities, linking garden premises with the surroundings and using local plants.
Analysis of the density of the national network of reference stations on the example of ASG-EUPOS
Authors: Kudas Dawid
Published: January 2021

Networks of reference stations play the role of sensors networks that continuously receive satellite signals. In this way, they provide data for many issues related to relative positioning. The density of reference stations network has an impact on measurements with kinematic techniques (e.g. RTK, NRTK) and the postprocessing of satellite observations recorded using the static technique. Networks of reference stations are divided according to their spatial range and the tasks they perform. The reference network can also be characterized by the network density. This article presents considerations concerning the determination of the average distance between the stations of national reference network, as well as between the stations of the higher accuracy network and the considered national network. The considerations relate to the example of the Polish ASG-EUPOS network. The average distance between the ASG-EUPOS network stations was determined in two-dimensional (2D) and three-dimensional (3D) space. It was determined that the average 3D distance between neighbouring ASG-EUPOS stations is approx. 42 km. However, in the case of determining the average distance between the network points using the sides of Delaunay triangles, this value is approx. 70 km. In the case of averaging the distance to six closest neighbours of each station, the obtained value was approx. 69 km. The areas of the ASG-EUPOS network characterized by an inconvenient location in relation to the EUREF Permanent GNSS Network class A stations, which is a network of a higher accuracy class, to which the ASG-EUPOS is related, were also indicated.
Geographical vs institutional factors of the development of old industrial regions in industry 4.0: the case of Ural macro-region
Authors:   Ural State University of Economics, Ekaterinburg, Russian Federation, Rakhmeeva Irina I.
Published: January 2021

Relevance. Massive industrial and economic changes, which are a part of the Fourth Industrial Revolution, bring about new challenges and opportunities for regional development. The factors that used to play a key role in the development of regions such as labor, capital and geography, are now receding to the background while other factors such as technological progress, human capital and institutions gain importance. Research objective. The article deals with changes in the factors that shape regional development, more specifically, it aims to compare the influence of geographical and institutional factors on the development of one of the leading industrial macro-regions in Russia – the Urals. Data and methods. The research contains regional analysis of geographical and institutional factors in old industrial regions of the Ural macroregion of Russia. The method of geographical zoning is based on collation the development levels of regions with their geographical and institutional competitive positions. Results. The research revealed the complexity of factors affecting old industrial regions in Russia in the 2010s: some of these regions are still highly dependent on geographical factors while others are largely shaped by institutional factors. Such territories show sustainable development of their economies and innovation sectors. We also found a significant correlation between the regions’ economic performance and their formal institutions (the quality of regulation) while the differences in informal institutions were negligible. Conclusions. The conclusion is made that regional authorities in Russia should put more effort into creating a better regulatory environment for innovation and industry.
ENFISEMA SUBCUTANEO FACIOCERVICOTORÁSICO Y SU RESOLUCIÓN MEDIANTE LA TERAPIA DE PRESIÓN NEGATIVA.
Authors: Soto Góngora Sergio , Pérez Hernández Jorge Alberto
Published: January 2021

NTRODUCCIÓN: el enfisema subcutáneo faciocervicotorásico, se puede definir como una entidad resultante de la infiltración de aire, dentro del tejido celular subcutáneo. La palabra faciocervicotorásico se refiere a las regiones involucradas. OBJETIVO: describir la terapia de presión negativa a base de agujas hipodérmicas, para la resolución de un enfisema subcutáneo faciocervicotorásico a nivel intrahospitalario. CASO CLÍNICO: se presentó una paciente femenina de 35 años de edad, aparentemente sana, originaria y residente del Estado de México. Referida al servicio de cirugía maxilofacial. Al examen clínico se observa un aumento de volumen en la región del hemicara izquierda, región cervical bilateral, área trapezoidal y zona supraclavicular e infraclavicular bilateral, a la auscultación de estos sitios con el estetoscopio y palpación se identifica crepitación de las zonas ya mencionadas, debido a que el paciente presento una desaturación grave, el manejo inmediato fue aplicando la terapia de presión negativa a base de agujas de tipo hipodérmica de calibre 20 G de 32 mm. CONCLUSIÓN: la terapia de presión negativa a base de agujas de tipo hipodérmica, es efectiva para la resolución del enfisema subcutáneo faciocervicotorásico, siempre y cuando se delimiten las regiones afectadas, así mismo, es una opción para mejora los valores de saturación críticos.
A Survey on the Explainability of Supervised Machine Learning
Authors: Burkart Nadia , Huber Marco F.
Published: January 2021

Predictions obtained by, e.g., artificial neural networks have a high accuracy but humans often perceive the models as black boxes. Insights about the decision making are mostly opaque for humans. Particularly understanding the decision making in highly sensitive areas such as healthcare or finance, is of paramount importance. The decision-making behind the black boxes requires it to be more transparent, accountable, and understandable for humans. This survey paper provides essential definitions, an overview of the different principles and methodologies of explainable Supervised Machine Learning (SML). We conduct a state-of-the-art survey that reviews past and recent explainable SML approaches and classifies them according to the introduced definitions. Finally, we illustrate principles by means of an explanatory case study and discuss important future directions.
Between Fiction and Physiology: Brain Fever inThe Brothers Karamazovand Its English Afterlife
Authors: Emery Jacob , Geballe Elizabeth F.
Published: January 2021

Working at the intersection of translation theory and medical humanities, this article interrogates the termbrain fever, which Constance Garnett, adhering to clichés of English sentimental fiction, uses in reference to a wide variety of medical conditions in the works of Fyodor Dostoevsky. Garnett's choice has become useful shorthand for the narrative function of delirium in Dostoevsky's works, but it obscures the sensitivity to medical terminology that informs the Russian texts. InThe Brothers Karamazov, Dostoevsky stages the conflict between Enlightenment rationality and religious mysticism by satirizing the terminology of medical authorities and contrasting it with the language of faith, which posits its own etiology for mental diseases. Garnett's abundance of interpolated brain fevers can be read not as a simple mistranslation but as marking the roles of translation and diagnosis in mediating the various cultural paradigms produced in fictional worlds.
Notes on Vegan Camp
Authors: Quinn Emelia
Published: January 2021

By examining a kitsch piece of nineteenth-century scrimshaw on display at the Hull Maritime Museum, Lady Gaga's infamous meat dress, and a range of mock meat products, this essay expands the scope of camp representation to theorize how vegans can, and do, draw both sustenance and pleasure from what has previously only caused pain. Appropriating products of exploitation as “vegan camp” constitutes a refusal to experience horror or disgust and instead to enjoy a surface performance of human exceptionalism, an enjoyment that parodies earnestness and exposes the desperate drive to assert human dominance over the nonhuman animal to farce. Vegan camp thus provides a mode of reading that broadens vegan-oriented scholarship beyond its current associations with the serious and sincere.
An Audacious Argument for Modesty
Authors: Bérubé Michael
Published: January 2021

It is notable that Pardis Dabashi's paper at the 2019 MLA convention, “the pressure to intervene: A case for the modest (Young) Critic,” caused such a stir—insofar as it mounted a gentle argument against ritual stir-causing, and the gentleness of the argument was central to its point. As Dabashi wrote, “the language of the scholarly intervention—that is, the articulation of the stakes of one's argument—has a way of ossifying hunches into convictions” (4). The idea, clearly, was to ratchet down the level of agon and hubris in scholarly debate and to foreground the perspectives of younger scholars making their first forays into the fray: “since thus far the post-critical debates held in widely circulated and visible academic forums have mostly been conducted among professionally secure, mid-late career scholars, we've not yet had the chance to discuss the kind of epistemic modesty that matters very deeply to early-career-stage scholars now, that is, scholars entering graduate programs in or around 2008” (2). Dabashi suspects, at least as this professionally secure, mid-to-late-career scholar hears her, that the cohort entering the desiccated post-2008 (and especially post-2015) job market does not see the profession in the terms that have dominated debate about the purpose of criticism over the past ten or twelve years:

The field of critical production for us is deeply heterogenous, syncretic: the mixing of critical and (at least some) postcritical methods has become something we take for granted. And early-career scholars of this generation—who don't really have a horse in the race of re-orientating ourselves vis-à-vis the text—would advocate instead, it seems to me, for re-orienting ourselves vis-à-vis each other—that is, laterally, scholar to scholar. (3)
Experts and Encounters
Authors: Chodat Robert
Published: January 2021

In a 2018 piece forthe chronicle of higher education, Michael Clune describes a “rude awakening” he once experienced when developing a new course as a graduate student at Johns Hopkins University. As was customary then at Johns Hopkins, he was required to submit a course proposal that underwent a review by a board of professors from different fields. Clune arrived at the interview ready to discuss a syllabus that, as he recalls, “purported to explain urban decay, novels, the nature of free-market economics, and the political history of the 1970s in one brilliant synthesis.” But the board was underwhelmed. As Clune cited the “illustrious figures” and “hallowed formulas” he had learned to incant in literary studies, the political scientists and historians sitting in front of him—people who spend their lives researching stuff like urban decay, free-market economics, and recent political history—responded with “withering skepticism” and did something he hadn't anticipated: they “actually asked difficult questions about the reasoning behind the stars' dicta,” unimpressed by “the heroes of literature-department economic, political, and historical thought.” Clune doesn't say whether he got to teach the course, but the episode was the first time he began to see literary studies as “a kind of twilight zone,” an “exploded discipline” with fading intellectual prestige.
Free-vibration and moisture absorption behaviour of Sida acuta fibre polymer composites
Authors: Chandra Mohan H K , Devaraj S
Published: January 2021

The present investigation was carried out to study the effect of fibre orientation and fibre loading on the flexural properties, free-vibration characteristics and moisture absorption behaviour of Sida acuta-fabric-reinforced epoxy matrix composites. S. acuta composites were fabricated to 0, 24, 28 and 32 wt.% fibre loadings with each having 0°/90° and ±45° fibre orientations using the hand lay-up method. The flexural strength and damping properties of the S. acuta composite were enhanced with fibre loading from 24 to 32 wt.% in both ±45° and 0°/90° fibre orientation composites. The maximum value of the flexural strength of the composites (43.3 MPa) was obtained at 32 wt.% fibre with a 0°/90° fibre orientation. The moisture absorption of the S. acuta composite was enhanced with increase in fibre content from 0 to 32 wt.%. The tensile strength and stiffness of the moisture-degraded S. acuta composite decreased with an increase in fibre loading from 24 to 32 wt.% after the equilibrium period (60 days) of moisture immersion. The nature of fibre and matrix material interface was investigated through scanning electron microscopy of a flexural fracture without moisture degradation and tensile fracture with moisture-degraded samples. The fracture surface morphology of the composite reveals that the fracture behaviour and fibre pull-out of the samples.
Enabling mechanically adaptive 4D printing with cellulose nanocrystals
Authors: Seguine Tyler W , Fallon Jacob J , Das Arit , Holz Emily A , Bracco Mindy R , Yon Justin E , Foster Earl Johan , Bortner Michael J
Published: January 2021

Additive manufacturing of stimulus-responsive materials is an area of four-dimensional (4D) printing that is continuing to gain interest. Cellulose nanocrystal (CNC) thermoplastic nanocomposites have been demonstrated as a water-responsive, mechanically adaptive material that shows promise in generating 4D-printed structures. In this study, a 10 wt% CNC thermoplastic polyurethane (TPU) nanocomposite was produced through a masterbatching process and printed using fused filament fabrication. A design of experiments was implemented to establish a processing window to highlight the effects of thermal energy input on the mechanical adaptivity of the printed parts. The combination of high temperatures and low speeds resulted in thermal energies that induced degradation of the CNC/TPU network and reduced the absolute values of storage moduli, but the mechanical adaptation persisted for all the printed samples. However, for slower speeds and increasing temperatures, the nanocomposites experienced a 15% decrease in adaptability. Further, a folded box structure was printed to establish the reversibility of the mechanical response and corresponding ability to generate a structure that can serve as a deployable shape-memory material based on response to water. The printed structure demonstrated fixity and recovery values of 76 and 42%, respectively. These results show significant promise for CNC/TPU nanocomposites in 4D-printed adaptable structures for academic and industrial applications.
Impact of Choice Based Four Tracks Project System on Development of Final Year Engineering Students and Challenges Faced During Implementation: Case Study
Authors:   Rajarambapu Institute of Technology, Ganesh L. Suryawanshi , Sachin K Patil ,   Rajarambapu Institute of Technology, Sushma S Kulkarni
Published: January 2021

Being an autonomous institute, Rajarambapu Institute of technology (RIT), Rajaramnagar decided to start choice based four tracks of projects for final year engineering students from the year 2017-18 to develop them globally competent. As per this system students can opt one choice from industry internship & projects (IIP), undergraduate research experience (URE), Entrepreneurship development (ED) and regular capstone project (CP) by their choice. Present work focuses on choice based four track project system, its impact on student�s career, challenges faced during implementation from student and institute perception and major actions taken to overcome the challenges. To analyse the outcomes of four track project system, survey of students and their evaluators were conducted. It was observed that students who opted IIP track, developed their skills like technical competency and interpersonal skills. Institute succeeded to improve the placement from 89% to 63.05%. From survey and evaluation of URE opted students, it is observed that self-learning ability, self-confidence and critical thinking improved at satisfactory level. This helped the students to build their resume. In last three years 20 URE opted students secured admissions easily at foreign universities after clearing the entrance test. Under ED track, students developed entrepreneurial self-efficacy and entrepreneurial characteristics. 19 students started business and 21 students joined the business of their parents in last three years. Students who opted CP track succeeded to develop skills like team work, innovative thinking, and time management. Overall, it has been observed that admission cut off marks of institute have been increased by 10 to 30 % from the year 2017-18 to 2019-20.
Role of Learning Analytics to Evaluate Formative Assessments: Using a Data Driven Approach to Inform Changes in Teaching Practices
Authors:   Department of CSE - KG Reddy College of Engineering & Technology, Center for Engineering Education Research, KLE Technological University, India, Sagarika Rayapudi Hima , Kandakatla Rohit ,   Department of ECE - KG Reddy College of Engineering & Technology, Center for Engineering Education Research, KLE Technological University, India, Gulhane Ashwini
Published: January 2021

One of the most challenging tasks for faculty in their role as a teacher is to design, administrate, and evaluate formative assessments. This results in a lot of faculty not utilizing the formative assessments as a form of student feedback and make regular changes to the course. In this study, we explore the role of technology in helping faculty implement and analyze formative assessments. We believe the advancement of technology and its increasing applications in education may result in development of novel solutions to this impediment through learning analytics. This paper explores the use of such data analytics to address the challenges impeding the capacity of instructors to provide personalized feedback at scale.The study was implementing in the Computer Science and Engineering Department where a group of faculties who teach undergraduate engineering students. The faculty designed and administered a set of formative assessments in multiple courses through the learning management system. The data collected from the formative assessments was analyzed using learning analytics and the results were used to provide actionable recommendations that could better support students to achieve the learning outcomes of the course. The data was analyzed to understand and optimize the learning process of the students in the course. The results of the paper will provide insights to engineering educators on how they could take a data driven approach and harness the power of technology to better support their students. This approach will also help direct students towards deeper and self-regulated learning.
Impact of Project-Based Learning on Entrepreneurial and Social Skills Development
Authors:   ECE Department, St Joseph Engineering College, Vamanjoor, Mangaluru, Karnataka, India, Pinto Avila Priya , K. J. Reshma
Published: January 2021

The management and entrepreneurship subject in the engineering curriculum is the most imperative at the same time overlooked subject when it comes to experiential learning. Therefore, it was realized that there is a need to bring up some innovations concerning course content delivery strategies and assessment to improve the entrepreneurial and social skills among the students. The purpose of this study is to find the impacts of projectbased learning and identify all factors that influence our students to get succeed. This exposed students to numerous opportunities to learn how to think critically and analyze the ideas on board. The flip classroom is used to describe the concept, and Project-Based Learning served as a tool for the students to develop their Entrepreneurial Skills. These strategies helped the students to continue learning on the topic further. They discovered various job opportunities, career paths they thought of or known existed. This type of instructional method repurposed the class hours for an inquiry which was beneficial for students to learn better. The pedagogical practices which are discussed here were found to be the most effective ones when compared with conventional classroom teaching and in terms of student's involvement in learning. It is perceived that to unleash our students' entrepreneurial skills, curricula must include outcomes that enable lifelong learning and encourage inquiry beyond the classroom rather than only defining measurable learning outcomes. The current research motivated the students to submit business plans for startups.
Role of Active Learning Techniques in Development of Problem Solving Skills
Authors:   Computer Engineering and Technology, Dr. Vishwanath Karad MIT World Peace University, India, Dixit Bharati , Bedekar Mangesh , Jahagirdar Aditi , Sathe Neha
Published: January 2021

In the current era where ample data is generated every second and available to every individual in the form of information, it is easy to gain knowledge from this information but a systematic and methodical approach is required when it comes to skill development. Online and on campus programs help in gaining knowledge but the skills to apply this knowledge needs to be developed gradually through appropriate teaching pedagogy which helps in practicing higher order thinking skills as proposed by Bloom and well known as Bloom�s Taxonomy. In conventional teaching learning approach adopted for online and in-person classroom sessions, the transmission of knowledge takes place most of the time where learner�s involvement may be quite less. So from the perspective of improvement in learner�s involvement in teaching learning process, active learning methods play a significant role and hence practiced widely in recent times. Variety of methods are recommended by scientists and Education experts to improve upon assimilation of knowledge for problem solving. Depending upon the nature of the problem the learner either needs to use one of the lower order thinking skills like apply or higher order thinking skills like analyse, evaluate and create as defined by Bloom. The study presented in this paper discusses case studies of practicing active learning techniques and developing problem solving skills through these techniques. The consolidated feedback analysis for the active learning techniques practiced show that the 96% learners have agreed for clarity of understanding, 92.72% learners have shown confidence in application of concepts and 97.27% participants have shown improved satisfaction in learning. Qualitative testimonies suggests the promising strength of PBL and effectiveness of it in improvement of problem solving skills. The study encourages the effective use of active learning techniques for skill development which is need of time.