bluuebunny/crossref_metadata_2025 huggingface dataset:
New forms of immobilized active chlorine and its potential applications in medicine
Authors: Toropin Volodymyr , Murashevych Bohdan , Stepanskyi Dmytro , Toropin Mykola , Kremenchutskiy Henadii , Burmistrov Kostiantyn
Published: May 2020

The search for new effective means for combating pathogenic microorganisms is one of the most important tasks of modern medicine. The main reason for the need for such studies is the obvious tendency to increase of the resistance of pathogenic microorganisms to the compounds used for these purposes, observed over the past few decades. Leading international organizations recognize the problem of the evolution of «superbacteria» as a global threat to humanity. Compounds of active chlorine are extremely effective biocidal agents. However, for the number of reasons, classic chlorine-active drugs (solutions of sodium hypochlorite, hypochlorous acid, chloramines, etc.) have limited use in medicine. This work is aimed at the study of the properties of new forms of active chlorine. Technology has been developed for the chemical immobilization of active chlorine donor groups on granular and fibrous polymer carriers. Polymers have been obtained, which contain 5-20 % of the active chlorine and are highly stable. It was shown that upon contact of such polymers with a medium containing ammonium salts or impurities of protein structure, emission of active chlorine occurs in an amount equivalent to the quantity of such impurities. Methods have been developed for the express manufacture of high-purity solutions of active chlorine (hypochlorous acid, chlortaurin) by activating these polymers with special activators. High antimicrobial activity of such solutions has been proved. It was shown that the polymers themselves also exhibit high microbicidal activity. The possibility of using fibrous forms of chlorine-active polymers as an antimicrobial component of a wound dressing has been investigated. The absence of toxicity of such dressings has been proved. It has been shown that the application of dressings on uninfected wounds speeds up the healing process. The application of dressings on infected wounds prevents the progress of inflammatory processes and significantly reduces the number of pathogenic microorganisms in wound secretions. Thus, synthesized polymers with immobilized active chlorine may be promising for use in water and air disinfection systems, for detoxification of hospital effluents, the rapid production of antimicrobial solutions, as well as for the manufacture of prolonged-action antiseptic wound dressings that protect wounds from secondary infection, that is especially important for military and disaster medicine. Keywords: disinfection, antiseptics, active chlorine, immobilization, antiseptic solutions, antimicrobial activity, reparative activity, wound dressings. For citation: Toropin VM, Murashevych BV, Stepanskyi DO, Toropin MV, Kremenchutskiy HM., Burmistrov KS. New forms of immobilized active chlorine and its potential applications in medicine. Journal of the National Academy of Medical Sciences of Ukraine. 2019;25(3):340–52
ON DETERMINATION OF ASSAULT AVIATION AIRCRAFT EFFECTIVENESS
Authors: Nikitchenko V. , Kirdei L. , Gordeev S. , Tolmachov V.
Published: May 2020

When analyzing typical assault aviation combat missions, the most common objects for each aircraft actions should be identified, a preliminary estimate of their distance from the front line has to be provided, and one of the objects should be selected as the typical target for evaluating the aircraft effectiveness.

A destruction of a typical target by an aircraft with a certain probability is one of the main components of the assault aviation aircraft effectiveness, but it does not fully characterize the effectiveness of the aircraft.

In the course of assault aircraft combat mission accomplishment, the generally accepted approach is identification the four aircraft flight phases with a purpose of destruction a surface target.

As a combat mission for assault aircraft the striking for destruction an enemy airfield or division of guided missiles can be considered.

The choice of flight route and profile is related to the assessment of the enemy's actual areas of engagement to determine the line of maneuvering.

The feature of devastating effect of attack ammunition is the conditional law of target destruction. For the means of destruction of a remote action the feature of devastating effect of attack ammunition is a cumulative effect of each munitions at known coordinates of impact points.

For the means of destruction which are used in cluster bombs, as a result of small caliber live ammunition scattering the total area of destruction is created. The cover area for single cluster bomb is ellipse shaped.

Thus, in order to evaluate the effectiveness of the assault aviation aircraft employment it is advisable to use an indicator such as the effectiveness of the aircraft in one combat sortie. Evaluation of aircraft effectiveness in one sortie consists of estimates of the probability for penetration the means of air defense, the probability of target detection, the probability of target attack, the probability of target destruction and reliability of aviation equipment. For assault aviation, the effectiveness of an aircraft in a single combat sortie has the notion of a total probability of a target destruction or a mathematical expectation of a target destruction.
Identification of Prebiotic Molecules Containing Peptide-like Bonds in a Hot Molecular Core, G10.47+0.03
Authors: Gorai Prasanta , Bhat Bratati , Sil Milan , Mondal Suman K. , Ghosh Rana , Chakrabarti Sandip K. , Das Ankan
Published: May 2020

After hydrogen, oxygen, and carbon, nitrogen is one of the most chemically active species in the interstellar medium. Nitrogen-bearing molecules are very important as they are actively involved in the formation of biomolecules. Therefore, it is essential to look for nitrogen-bearing species in various astrophysical sources, specifically around high-mass star-forming regions where the evolutionary history is comparatively poorly understood. In this paper, we report on the observation of three potential prebiotic molecules, namely, isocyanic acid (HNCO), formamide (NH2CHO), and methyl isocyanate (CH3NCO), which contain peptide-like bonds (–NH–C(=O)–) in a hot molecular core, G10.47 + 0.03 (hereafter, G10). Along with the identification of these three complex nitrogen-bearing species, we speculate on their spatial distribution in the source and discuss their possible formation pathways under such conditions. A rotational diagram method under local thermodynamic equilibrium has been employed to estimate the excitation temperature and the column density of the observed species. The Markov Chain Monte Carlo method was used to obtain the best-suited physical parameters of G10 as well as line properties of some species. We also determined the hydrogen column density and the optical depth for a different continuum observed in various frequency ranges. Finally, based on these observational results, we have constructed a chemical model to explain the observational findings. We found that HNCO, NH2CHO, and CH3NCO are chemically linked with each other.
Super-resolution Imaging of the Protoplanetary Disk HD 142527 Using Sparse Modeling
Authors: Yamaguchi Masayuki , Akiyama Kazunori , Tsukagoshi Takashi , Muto Takayuki , Kataoka Akimasa , Tazaki Fumie , Ikeda Shiro , Fukagawa Misato , Honma Mareki , Kawabe Ryohei
Published: May 2020

With an emphasis on improving the fidelity even in super-resolution regimes, new imaging techniques have been intensively developed over the last several years, which may provide substantial improvements to the interferometric observation of protoplanetary disks. In this study, sparse modeling (SpM) is applied for the first time to observational data sets taken by the Atacama Large Millimeter/submillimeter Array (ALMA). The two data sets used in this study were taken independently using different array configurations at Band 7 (330 GHz), targeting the protoplanetary disk around HD 142527: one in the shorter-baseline array configuration (∼430 m), and the other in the longer-baseline array configuration (∼1570 m). The image resolutions reconstructed from the two data sets are different by a factor of ∼3. We confirm that the previously known disk structures appear on the images produced by both SpM and CLEAN at the standard beam size. The image reconstructed from the shorter-baseline data using the SpM matches that obtained with the longer-baseline data using the CLEAN, achieving a super-resolution image from which a structure finer than the beam size can be reproduced. Our results demonstrate that ongoing intensive development in the SpM imaging technique is beneficial to imaging with ALMA.
X-Ray Emission from Jupiter’s Galilean Moons: A Tool for Determining Their Surface Composition and Particle Environment
Authors: Nulsen S. , Kraft R. , Germain G. , Dunn W. , Tremblay G. , Beegle L. , Branduardi-Raymont G. , Bulbul E. , Elsner R. , Hodyss R. , Vance S.
Published: May 2020

We analyze archival Chandra X-ray Observatory observations of Jupiter to search for emission from the Galilean moons. X-ray emission has previously been reported from Io and Europa using a subset of these data. We confirm this detection, and marginally detect X-ray emission from both Ganymede and Callisto as well. The X-ray spectrum of Europa is strongly peaked around the neutral oxygen fluorescence line (525 eV), while Io’s has peaks at both oxygen and sulfur (2308 eV) plus a broad continuum between 350 and 5000 eV. Ganymede’s spectrum is similar to Io’s, but without the sulfur peak. A few events, mostly clustered around the oxygen line, are detected from Callisto. Using measurements by the Galileo mission of the specific intensity of ambient protons and electrons, we model the X-ray spectra and flux of the moons from two processes: particle-induced X-ray emission (PIXE) from the impact of energetic protons and X-ray emission from electron bremsstrahlung. With uncertainties of a factor of a few, the electron bremsstrahlung and PIXE models overestimate the X-ray flux from Europa, preventing us from making a definitive statement about the origin of the X-ray emission. The PIXE model of Io predicts emission lines at O and S similar to those observed, but underestimates their flux by nearly two orders of magnitude. Based on this discrepancy in the PIXE flux, combined with the detected broadband continuum in the spectrum, we conclude that the X-ray emission from Io is due to electron bremsstrahlung. Likewise, because of Ganymede’s broad continuum, we tentatively conclude that its X-ray emission is also due to electron bremsstrahlung. Callisto is too faint in the X-rays to draw any conclusion. Obtaining in situ X-ray observations of the moons would provide a direct measurement of their elemental composition.
Ions in the Thermosphere of Exoplanets: Observable Constraints Revealed by Innovative Laboratory Experiments
Authors: Bourgalais Jérémy , Carrasco Nathalie , Changeat Quentin , Venot Olivia , Jovanović Lora , Pernot Pascal , Tennyson Jonathan , Chubb Katy L. , Yurchenko Sergey N. , Tinetti Giovanna
Published: May 2020

With the upcoming launch of space telescopes dedicated to the study of exoplanets, the Atmospheric Remote-Sensing Infrared Exoplanet Large-survey (ARIEL) and the James Webb Space Telescope (JWST), a new era is opening in exoplanetary atmospheric explorations. However, especially in relatively cold planets around later-type stars, photochemical hazes and clouds may mask the composition of the lower part of the atmosphere, making it difficult to detect any chemical species in the troposphere or understand whether there is a surface or not. This issue is particularly exacerbated if the goal is to study the habitability of said exoplanets and search for biosignatures. This work combines innovative laboratory experiments, chemical modeling, and simulated observations at ARIEL and JWST resolutions. We focus on the signatures of molecular ions that can be found in upper atmospheres above cloud decks. Our results suggest that

along with H3O+ could be detected in the observational spectra of sub-Neptunes based on a realistic mixing ratio assumption. This new parametric set may help to distinguish super-Earths with a thin atmosphere from H2-dominated sub-Neptunes to address the critical question of whether a low-gravity planet around a low-mass active star is able to retain its volatile components. These ions may also constitute potential tracers to certain molecules of interest, such as H2O or O2, to probe the habitability of exoplanets. Their detection will be an enthralling challenge for the future JWST and ARIEL telescopes.
On the Physical Association of Fermi-LAT Blazars with Their Low-energy Counterparts
Authors: de Menezes Raniere , D’Abrusco Raffaele , Massaro Francesco , Gasparrini Dario , Nemmen Rodrigo
Published: May 2020

Associating γ-ray sources to their low-energy counterparts is one of the major challenges of modern γ-ray astronomy. In the context of the Fourth Fermi Large Area Telescope Source Catalog (4FGL), the associations rely mainly on parameters such as apparent magnitude, integrated flux, and angular separation between the γ-ray source and its low-energy candidate counterpart. In this work, we propose a new use of the likelihood ratio (LR) and a complementary supervised learning technique to associate γ-ray blazars in 4FGL, based only on spectral parameters such as the γ-ray photon index, mid-infrared colors, and radio-loudness. In the LR approach, we crossmatch the Wide-field Infrared Survey Explorer Blazar-Like Radio-Loud Sources catalog with 4FGL and compare the resulting candidate counterparts with the sources listed in the γ-ray blazar locus to compute an association probability (AP) for 1138 counterparts. In the supervised learning approach, we train a random forest algorithm with 869 high-confidence blazar associations and 711 fake associations and then compute an AP for 1311 candidate counterparts. A list with all 4FGL blazar candidates of uncertain type associated by our method is provided to guide future optical spectroscopic follow-up observations.
Intégrer la bonne Écurie ou comment devient-on associé d’audit ? Le fonctionnement des réseaux informels de promotion dans les cabinets Big 4 en France
Authors: Garnier Claire
Published: May 2020

Jusqu’à présent, la littérature nous présente la carrière des auditeurs comme une inexorable ascension de la pyramide hiérarchique, selon le principe du up-or-out, jusqu’à l’association présentée comme un aboutissement de parcours. En inscrivant le processus de cooptation dans une perspective interactionniste, le concept longitudinal et microsociologique de carrière nous permet de considérer la promotion à l’association comme un processus entamé dès l’embauche et qui se poursuit tout au long du parcours de l’individu dans le cabinet. Nous montrons que l’accession à l’association s’organise autour de réseaux informels de promotion, comparée à des Écuries, qui structurent de manière informelle et transversale la hiérarchie pyramidale des cabinets et jouent un rôle avant, pendant et après le passage à l’association.
The Effect of Earnings Management on Debt Maturity: An International Study
Authors: Maurice Yao , Mard Yves , Séverin Éric
Published: May 2020

Cet article examine l’effet de la gestion des résultats sur la maturité de la dette et comment cette relation est influencée par l’environnement institutionnel. L’échantillon est issu de 17 pays européens de l’indice STOXX Europe 600 sur la période 2006-2014. Nos résultats montrent que la gestion des résultats, aussi bien par les accruals discrétionnaires que par la gestion réelle, a un effet négatif sur la dette à long terme. Plus important encore, nous observons que le lien négatif entre la gestion des résultats et la dette à long terme ne tient que dans les pays à faible protection des créanciers. Ce résultat suggère que la bonne protection des créanciers tend à compenser la faiblesse de la qualité de l’information financière des emprunteurs.
Pour l’intégration du concept d’ agency en analyse du discours
Authors: Marignier Noémie
Published: May 2020

Cet article propose de réfléchir aux articulations théoriques entre analyse du discours dite française et études de genre autour du concept d’ agency , notamment tel qu’il est formulé par Butler. Le concept d’ agency a en effet connu un succès certain dans le champ des Gender and Language Studies , et je montrerai qu’il peut être tout à fait fertile pour l’analyse du discours dite française si l’on procède à plusieurs remaniements théoriques. Il s’agira tout d’abord de situer le concept butlérien d’ agency vis-à-vis d’autres acceptions du terme dans les approches linguistiques. On étudiera la richesse de l’utilisation du concept, mais aussi ses limites, notamment en ce qui concerne son applicabilité à l’analyse des données dans une perspective discursive. Reprenant certains concepts et démarches fondamentaux de l’analyse dite française, j’essaierai de montrer comment on peut y intégrer une pensée de l’ agency , notamment en théorisant les déplacements des filiations d’identification au sein des formations discursives.
« Le portugais est la 7 e langue la plus utilisée au monde ! ». Promotion de la langue portugaise dans deux communautés portugaises en Amérique du Nord
Authors: Scetti Fabio
Published: May 2020

Cette contribution présente une comparaison entre deux communautés portugaises installées en Amérique du Nord depuis le xx e siècle. Alors que les effectifs diminuent au sein des écoles communautaires portugaises locales, ses membres se mobilisent afin de promouvoir le portugais comme langue du futur et véritable atout. À partir d’une analyse des idéologies linguistiques qui circulent autour du portugais parmi les descendants, nous avons observé les discours qui se construisent en référence au portugais comme langue du passé, marqueur d’identité ainsi que comme langue internationale, outil pour le futur. Notre méthodologie qualitative, basée sur l’observation participante associée à la réalisation d’entretiens semi-dirigés, nous a permis d’analyser les pratiques langagières, en focalisant sur la perception et identification du « bon » portugais, identifié comme norme. Il apparaît enfin, que les pratiques dites mixtes et hybrides, ne cessent d’être mises en cause par la réactivation du paradigme nationaliste prescriptif visant à l’équation une langue = une nation et/ou communauté = une norme.
Mastering Survey Design and Questionnaire Development
Authors: Robb Meigan , Shellenbarger Teresa
Published: May 2020

Surveys help health care professionals gather meaningful data that can guide decision making and improve practice. Individuals creating surveys should follow survey design and item development guidelines, such as those described in this article, to ensure the accuracy of the data gathered.

[
J Contin Educ Nurs
. 2020;51(6):248–249.]
Nurse Graduates' Perceived Educational Needs After the Death of a Patient: A Descriptive Qualitative Research Study
Authors: Cadavero Allen A. , Sharts-Hopko Nancy C. , Granger Bradi B.
Published: May 2020

Background:

Nurse graduates (NGs) are ill prepared when faced with patient death and dying, despite receiving educational preparation on end-of-life (EOL) care in their prelicensure nursing programs.

Method:

This qualitative descriptive study included a convenience sample of NGs (
n
= 20) who experienced a first adult patient death during their first 18 months of practice at a large teaching hospital with an extensive NG transition program, including preceptor-guided orientations, nurse internship programs, and nurse residency programs.

Results:

Six major themes described the NG experience: Navigating the Process, Not Prepared, Support, Missed Opportunities, Preparing NGs for Death and Dying, and Guiding NGs Through Practice. Critical gaps in preparation were evident across all themes.

Conclusion:

Results of this study suggest specific opportunities for improvement of NGs' readiness to effectively care for patients and families in EOL situations by increasing their exposure to death and dying experiences before graduation and during their first year of practice.

[
J Contin Educ Nurs
. 2020;50(6):267–273.]
Lumateperone: New Drug or Same Old Drug With a New Dress?
Authors: Limandri Barbara J.
Published: May 2020

Lumateperone (Caplyta
®
) is a drug recently approved by the U.S. Food and Drug Administration for the treatment of schizophrenia. But is it a new drug with promise, or a similar drug with new wrappings? This drug, similar to other second- and third-generation serotonin dopamine antagonists, is a potent antagonist at higher serotonin 2A receptors as well as brief binding to dopamine 1 and dopamine 2 (D2) receptors, but also has partial agonism at presynaptic D2 and indirect modulation of N-Methyl-D-aspartic acid (NMDA) and alpha-amino-3-hydroxy-5-methyl-isoxazolepropionic acid (AMPA) of the glutamine receptors. The current article reviews the putative effects of this novel mechanism of action on symptoms of schizophrenia as discussed in Phase II and III trials. A case study applies the information to a clinical situation. [
Journal of Psychosocial Nursing and Mental Health Services, 58
(6), 9–12.]
Building a Sentiment Analysis System Using Automatically Generated Training Dataset
Authors: M. Daoud Daoud , Abou El-Seoud Samir
Published: May 2020

In this paper, we describe a methodology to develop a large training set for sentiment analysis automatically. We extract Arabic tweets and then annotates them for negativeness and positiveness sentiment without human intervention. These annotated tweets are used as a training data set to build our experimental sentiment analysis by using Naive Bayes algorithm and TF-IDF enhancement. The large size of training data for a highly inflected language is necessary to compensate for the sparseness nature of such languages. We present our techniques and explain our experimental system. We use 200 thousand annotated tweets to train our system. The evaluation shows that our sentiment analysis system has high precision and accuracy measures compared to existing ones.
The Impact of Customer Relationship Management and Organizational Culture on Mass Customization Capability and Firm Performance
Authors: Ullah Inayat , Narain Rakesh
Published: May 2020

In today's world of heightened competition and ever-growing demand of customers, the development of customer-centric and learning-oriented culture, mass customization capability (MCC), and effective implementation of customer relationship management (CRM) are important determinants of success, but the existing research has largely overlooked how these factors interact and affect firm performance (FP). To address the gap, the present study proposes and empirically examines a framework that relates CRM and organizational culture (OC) to MCC and FP. Based on the data collected through a questionnaire-based survey of Indian manufacturing organizations, the proposed framework and associated hypotheses are empirically examined by using structural equation modelling based on partial least squares (PLS-SEM). The results indicate that the extent of effort employed by the firms to implement CRM and development of learning-oriented OC positively affects FP. Furthermore, MCC and OC have significant indirect impact on the relationship between CRM and FP.
Skeleton Network Extraction and Analysis on Bicycle Sharing Networks
Authors: Malang Kanokwan , Wang Shuliang , Lv Yuanyuan , Phaphuangwittayakul Aniwat
Published: May 2020

Skeleton network extraction has been adopted unevenly in transportation networks whose nodes are always represented as spatial units. In this article, the TPks skeleton network extraction method is proposed and applied to bicycle sharing networks. The method aims to reduce the network size while preserving key topologies and spatial features. The authors quantified the importance of nodes by an improved topology potential algorithm. The spatial clustering allows to detect high traffic concentrations and allocate the nodes of each cluster according to their spatial distribution. Then, the skeleton network is constructed by aggregating the most important indicated skeleton nodes. The authors examine the skeleton network characteristics and different spatial information using the original networks as a benchmark. The results show that the skeleton networks can preserve the topological and spatial information similar to the original networks while reducing their size and complexity.
Impact of Power Distance and Uncertainty Avoidance on the Adoption of Electronic Government Services
Authors: Mensah Isaac Kofi
Published: May 2020

This study extended the technology acceptance model (TAM) to explore the impact of power distance and uncertainty avoidance on the adoption of e-government services. The results as per the data analysis have demonstrated that all the research hypotheses were statistically supported. Specifically, perceived usefulness and perceived ease of use were both significant determinants of the intention to use e-government services. It was also revealed that intention to use positively predicts the actual usage behavior of e-government services. Importantly, the actual usage of e-government services was found to be a significant predictor of the intention to recommend e-government services adoption. In addition, power distance and uncertainty avoidance were discovered to respectively predict significantly the perceived usefulness, perceived ease of use and intention to use e-government services.
Cultural Challenges of E-Learning Experiences
Authors: Latrous Wijdène Ouerghi , Khadraoui Manel
Published: May 2020

Globalization and advances in information and communication technologies have increased the diversification of the characteristics of targeted students. The cultural diversity of users benefits learning but challenges institutions. In this context, we are trying to identify the cultural dimensions that influence the e-learning experience of users from different cultures. As we are interested in the meaning given by users to their experiences, we have conducted a qualitative study with 15 teachers and learners in a multi-cultural context. The content analysis showed the existence of four dimensions that can be factors of convergence or divergence for the learners. These dimensions are management of time and learning activities, management of the learning space, management of interpersonal relations, and style of communication. The results call the attention of professionals to improve the practical approaches to adapt e-learning services to different cultures in order to improve the perception of the e-learning experience.
Co-Creation of Public Service Innovation Using Open Data and Social Media
Authors: Jalonen Harri , Helo Tuomo
Published: May 2020

This article presents the analysis of the usage of open data and social media in the co-creation of public service innovation. The article concludes that using open data and social media in co-creation of public service innovation is a promising approach but not yet fully implemented. It seems clear that the advances in digital technology may provide a bridge for bringing service providers and service users together. The benefits are clear. First, the more accurate and real-time data available, the more effective the service provision will be. Second, the more citizen participation, the more tailored services can be co-created. Third, the more transparent governance becomes, the more legitimate and accountable it becomes. Fourth, governmental legitimacy increases societal trust which supports knowledge sharing and spurs innovation. However, co-creation of public service innovations can be more complex, more unpredictable, and more political than what the rhetoric indicates.
Mobile Learning Usage of LIS Students in Mainland China
Authors: Law Tsz Ying , Leung Fanny C. W. , Chiu Dickson K. W. , Lo Patrick , Lung Mavis Man-Wai , Zhou Qingshan , Xu Yang , Lu Yang , Ho Kevin K. W.
Published: May 2020

This study aims to explore the usage behaviors of smartphones for learning purposes by Library and Information Science (LIS) students of mainland China. A quantitative questionnaire was used for collecting the subjects' usage behavior, their perceptions on learning experience through using smartphones, and their needs of accessing library services using smartphones. The authors analyzed the results from two major universities in mainland China. This research discovered that LIS students in mainland China used smartphones for their daily-life matters more readily than for learning purposes. They were also interested in accessing library services with smartphones, but not many of them were already using these services. The undergraduate and postgraduate respondents had some differences in their usage preferences and behaviors. This paper suspected those library services are already available but the promotion has been inadequate. There are obviously opportunities for educators, librarians, and technology providers to get some insights to improve mobile learning (m-learning) in universities and for students to learn better with mobile technology and apps. This study provides insights into the users' needs and the application of m-learning in mainland China, where scant similar studies have been conducted before.
Security-Aware Autonomic Allocation of Cloud Resources
Authors: Gill Sukhpal Singh , Shaghaghi Arash
Published: May 2020

Cloud computing has emerged as a dominant platform for computing for the foreseeable future. A key factor in the adoption of this technology is its security and reliability. Here, this article addresses a key challenge which is the secure allocation of resources. The authors propose a security-based resource allocation model for execution of cloud workloads called STARK. The solution is designed to ensure security against probing, User to Root (U2R), Remote to Local (R2L) and Denial of Service (DoS) attacks whilst the execution of heterogeneous cloud workloads. Further, this paper highlights the promising directions for future research.
An Efficient Cloud Data Center Allocation to the Source of Requests
Authors: Kanniga Devi R.  , Gurusamy Murugaboopathi , Vijayakumar P.
Published: May 2020

A Cloud data center is a network of virtualized resources, namely virtualized servers. They provision on-demand services to the source of requests ranging from virtual machines to virtualized storage and virtualized networks. The cloud data center service requests can come from different sources across the world. It is desirable for enhancing Quality of Service (QoS), which is otherwise known as a service level agreement (SLA), an agreement between cloud service requester and cloud service consumer on QoS, to allocate the cloud data center closest to the source of requests. This article models a Cloud data center network as a graph and proposes an algorithm, modified Breadth First Search where the source of requests assigned to the Cloud data centers based on a cost threshold, which limits the distance between them. Limiting the distance between Cloud data centers and the source of requests leads to faster service provisioning. The proposed algorithm is tested for various graph instances and is compared with modified Voronoi and modified graph-based K-Means algorithms that they assign source of requests to the cloud data centers without limiting the distance between them. The proposed algorithm outperforms two other algorithms in terms of average time taken to allocate the cloud data center to the source of requests, average cost and load distribution.
A Study of Transient Heat Transfer through a Moving Fin with Temperature Dependent Thermal Properties
Authors: Ndlovu Luyanda Partner , Moitsheki Raseelo Joel
Published: May 2020

In this article, heat transfer through a moving fin with convective and radiative heat dissipation is studied. The analytical solutions are generated using the two-dimensional Differential Transform Method (2D DTM) which is an analytical solution technique that can be applied to various types of differential equations. The accuracy of the analytical solution is validated by benchmarking it against the numerical solution obtained by applying the inbuilt numerical solver in MATLAB ($pdepe$). A good agreement is observed between the analytical and numerical solutions. The effects of thermo-physical parameters, such as the Peclet number, surface emissivity coefficient, power index of heat transfer coefficient, convective-conductive parameter, radiative-conductive parameter and non-dimensional ambient temperature on non-dimensional temperature is studied and explained. Since numerous parameters are studied, the results could be useful in industrial and engineering applications.
Physical Aspects on MHD Micropolar Fluid Flow Past an Exponentially Stretching Curved Surface
Authors: Kumar Kempannagari Anantha , Sugunamma Vangala , Sandeep N. , Sivaiah S.
Published: May 2020

The present analysis is composed of heat transfer characteristics on MHD free convective stagnated flow of micropolar liquid due to stretching of an exponential curved sheet. The flow is supposed to be time-independent and not turbulent. The impact of non-linear radiation, unequal heat source/sink, Joule heating and variable thermal conductivity are supposed. Appropriate alterations are mused to change the original PDEs as ordinary ones and then solved by shooting and fourth order Runge-Kutta-Fehlberg integration schemes. Graphs are outlined to inspect the impacts of sundry non-dimensional variables on the distributions of velocity, micro rotation and temperature. We discern that there is an augmentation in the fields of heat with Eckert number, nonlinear radiation and irregular hear parameters. Also it is motivating to comment that material parameter is a decreasing function of velocity. We establish the consequences in this analysis evidence to be extremely agreeable with the obtainable consequences.
Answering the Call: Impact of Tele-ICU Nurses During the COVID-19 Pandemic
Authors: Arneson Sandy L. , Tucker Sara J. , Mercier Marie , Singh Jaspal
Published: May 2020

Background

The coronavirus disease 2019 pandemic has exacerbated staffing challenges already facing critical care nurses in intensive care units. Many intensive care units have been understaffed and the majority of nurses working in these units have little experience.

Objective

To describe how the skilled tele–intensive care unit nurses in our health system quickly changed from a patient-focused strategy to a clinician-focused approach during the coronavirus disease 2019 crisis.

Methods

We modified workflows, deployed home workstations, and changed staffing models with the goal of providing additional clinical support to bedside colleagues while reducing exposure time and conserving personal protective equipment for those caring for this highly contagious patient population. The unit changed focus and granted more than 300 clinicians access to technology that enabled them to care for patients remotely, added nearly 200 mobile carts, and allowed more than 20 tele–intensive care unit nurses to work from home.

Results

Tele–intensive care unit nursing provided clinical knowledge to the nurses covering current and expanded critical care units. Using technology, virtual rounding, and increased collaboration with nurses, tele–intensive care unit nursing minimized the risk to bedside nurses while maintaining a high level of care for patients.

Conclusion

Tele–intensive care unit nurses provided a proactive, holistic approach to caring for critically ill patients via camera as part of their routine workflow. In addition, during the coronavirus disease 2019 pandemic, these nurses created a new strategy in virtual health care to be implemented during a crisis.
As teorias retributivas no pensamento anglo-americano contemporâneo
Authors: Teixeira Adriano
Published: May 2020

Apesar de seu “ressurgimento” nos últimos anos, a teoria da retribuição é rechaçada praticamente de imediato pela opinião dominante na Alemanha, em razão de uma equiparação com as teorias da pena do idealismo alemão. Entretanto, esse posicionamento ignora o desenvolvimento que a teoria da retribuição teve nos últimos anos, especialmente no âmbito de discussão anglo-saxão. Neste trabalho, será apresentada esta última discussão, com o intuito de demonstrar que a teoria da retribuição é muito mais complexa e refinada do que acredita a opinião dominante alemã.
Papéis sociais, preconceito, estereótipo e estigma. A apresentação da imagem/voz de pessoas presas como instrumento do processo de degradação da personalidade
Authors: Monteiro Paulo Henrique Drummond
Published: May 2020

O presente artigo pretende avaliar, a partir de categorias da Psicologia Social, como a espetacularização midiática da prisão processual promovida pelas “apresentações formais” das pessoas sob custódia pela Polícia contribui para a formação de estereótipos sociais e para a consolidação do estigma criminoso no seio das interações psicossociais, com espeque no conceito cunhado por Erving Goffman. Procura-se, ainda, avaliar de que forma o sensacionalismo da mídia contribui para o fenômeno psicológico de auto-introjeção do papel desviante, promovendo a degradação da personalidade e a formação de carreiras criminosas. A análise se ampara em categorias da psicologia social, da criminologia da Reação Social (Labeling Approach), passando também por categorias da criminologia crítica. Por fim, discute-se a constitucionalidade e a legalidade da praxis das “apresentações formais” sob a lente do ordenamento jurídico brasileiro.
Female orgasm disorder
Authors: Kocsis Alexandra
Published: May 2020

Female orgasm disorder is a very common condition affecting a large part of population, women directly and men indirectly leading to multiple consequences. It is also one of the most frequent disorders coming to a sex therapist’s clinic. This paper is a summary of causes, symptoms and options of therapy.
“I Don’t Fit in Here and I Don’t Fit in There:” Understanding the Connections between L1 Attrition and Feelings of Identity in 1.5 Generation Russian Australians
Authors: Venturin Beatrice
Published: May 2020

The present study analyzes four adult Russian-Australian 1.5ers, heritage bilinguals whose first
language is Russian, and who immigrated to Australia or New Zealand during their primary
school years. Semi-structured interviews conducted with the case-study participants examined
their attitudes toward their Russian, their L1, and English, their L2. The interviews explored
the participants’ schooling history, language use, perceived language proficiency, dominance
and use, perceived L1 attrition, and feelings about their identity. The aim of the study was to
understand the connections between language, particularly L1 attrition, and identity for this
cohort of 1.5 generation speakers, as well as factors that may influence their identity perception.
The results emerging from the study’s data reconfirm the role played by language in identity
construction. At the same time, they suggest that for 1.5ers the relationship between language
and identity also needs to be considered in relation to L1 attrition. This factor, in fact, might
contribute to identity conflicts and trigger the desire to return to one’s roots.
Il Castello di “Carta”. Excursus della presenza del castello di Gallipoli nella cartografia storica
Authors: Quarta Aurora
Published: May 2020

The Castle of "paper". Excursus of Gallipoli’s castle presence in historical cartographyThe castle is located at the eastern part of the Gallipoli’s old town: the first data in archives and libraries started from the sixth century under the mention of castrum and in the following centuries there are many informations on parchments, written documents and bibliography published until today. The Syllabus Grecarum Membranarum from the twelfth century and the Statutum de reparatione castrorum of Frederick II are two precious sources about the primitive castle’s architecture.The structure endured the passage of the Byzantines, Normans, Swabians, Angevins and again, Aragonese, Venetians, Spaniards, Austrians and finally the Bourbons, until it became property of the State and now of the Gallipoli’s municipality. It has suffered over time numerous interventions to adapt it to new military needs: the castle was no longer effective with leading defence from new siege weapons, as for other architectures of the same period.The numerous representations preserved in Italian and European archives give a complete picture of the Gallipoli’s urban development and include the defensive system of the city: the different views illustrate the walls and allow us to understand the castle’s main evolutionary dynamics and its connection with the town.
La cinta muraria ed i fossati della città di Otranto. Il rilievo tridimensionale integrato per la conoscenza delle evidenze architettoniche ed archeologiche
Authors: Mitello Carmine , Muscatello Giovanna
Published: May 2020

The walls and moats of the city of Otranto. An integrated three-dimensional survey for studying the architectural and archaeological evidenceThe system of fortifications that rings the old town of the city of Otranto (Puglia, Italy) conserves the still visible traces of structures belonging to various historical periods, attesting to the evolution of the settlement’s defensive system from the Messapian period (fifth century BC) to the Aragonese period (sixteenth century). As part of a recent urban renewal project targeting the area of the moats, new archaeological, historic and architectural investigations were conducted. These included a painstaking analysis of the circuit of defensive walls and the broad and deep moat, which contains valuable archaeological and architectural evidence that has never before been studied. The use of advanced surveying technologies such as 3D Laser Scanners, parametric and georeferenced, enabled a holistic, synoptic and comparative reading of the structures, recording the distinctive features, building techniques, materials, alignments, range of thicknesses and losses of continuity in the walls, all of which are necessary for a correct identification of the construction phases. In addition, the data arising from the study and three-dimensional survey of some subterranean tunnels, entirely excavated in the rock in the area of the moats surrounding the Aragonese castle, have also enriched the framework of knowledge regarding specific military and defensive dynamics.
Primeros resultados de la excavación del castillo medieval de Dos Hermanas (Montemayor, Córdoba)
Authors: López Rider Javier , Rodero Pérez Santiago , Reyes Alcalá José Manuel
Published: May 2020

First results of the excavation of the medieval castle of Dos Hermanas (Montemayor, Cordoba)In the south of the kingdom of Córdoba, there is the castle so-called Dos Hermanas, located in the municipality of the current town of Montemayor. It has been considered that the construction of the castle of this stately town was the result of the first moments of decline of the fortress of Dos Hermanas, located on the bank of the Carchena stream. Currently, a first excavation campaign has been carried out that brings us closer to the anthropic occupation of the site. At the same time, the archival research gives new information to the history of the site, exceeding the date of 1340, when Don Martín Alonso de Córdoba partially destroyed the Arab fortress of Dos Hermanas to build the castle of Montemayor. The first data extracted from the field work support the written sources, providing us with new data that allow us to make a more complete and novel interpretation. The survival of part of the facilities of the Dos Hermanas castle with an occupation from Roman times to the sixteenth century that shows the total non-depopulation of the place in the fourteenth century, as previously thought. A high degree of conservation of the structures found inside the wall enclosure appears a southern bay with stables with nine mangers. To the west, there is a vain and an angled staircase that allowed access from the parade ground until the round pass over the main door, which is also preserved. The objective of this proposal will be to present these first results of the archaeological intervention centered on the southern wall of the castle. These research works are accompanied by a consolidation project of the main structures, all financed by the Provincial Delegation of Cordoba and Montemayor Town Hall, whose continuity is developed in 2019 and 2020.
El Castell Vell de Castelló o el paradigma de la ocupación antrópica del territorio de La Plana hasta el siglo XIII
Authors: Prior y Llombart Jaime , García Borja Pablo , Palmer Broch Joan Enric , Font Mezquita Fermin
Published: May 2020

The Castelló’s old castle (Castell Vell), or the paradigm of the anthropic territory’s occupation in La Plana until the thirteenth centuryThe Castell Vell of Castelló (Castelló’s Old Castle) is an andalusian structure located at the top on a hill, placed on northern region of La Plana, in the land of Castellón. It’s organized on three interconnected platforms, as many andalusians castles: alcazaba, albacara and the village itself. With 1,1 hectares surface, it follows the pattern of “castle associated with a rural habitat” according the Bazzana’s classification. Its conservation status advises a series of interventions, the last one dated in 2018. Defensive structures have, in general, a high homogeneity in terms of construction techniques, but different moments and build phases can be identified. Its configuration is not uncommon in the almohad military structures of the Iberian land that can be dated between the twelfth and the thirteenth centuries. The presentation at this congress of this heritage piece and the description of the last intervention made is the objective of this study.
La Torre della Marina di Vietri sulla Costa d’Amalfi: test statistico-predittivi di dati fotogrammetrici
Authors: Morena Sara , Barba Salvatore
Published: May 2020

The Tower of Marina di Vietri on Amalfi Coast: a statistical-predictive test of photogrammetric dataThe focus of the work is on close-range photogrammetry and mainly on the low-cost technologies, experimented in the survey of Tower of Marina di Vietri, a historical building erected in the sixteenth century at Vietri sul Mare in the Province of Salerno. The general objective is to codify a methodology for objectifying the comparisons of the results; hence, the research starts from an original analysis conducted on the returned orthophotos by several photogrammetric paradigms. To estimate its reliability and precision, we proceeded, at first, with the extension and application of an error propagation law and then with the validation of the comparison according to a predictive type test. The first results are presented here after a study on raster images generated according to different algorithms. Subsequently, on each graphic product, 73 points were identified and for each of the relative coordinates the deviation are evaluated by verifying them with the value of the standard deviation. Consequently, for the purpose of greater validation of the methodology, a predictive test was implemented with the aim to confirm the criterion used for the comparison and to guarantee, in probabilistic terms, the values analysed; finally, a further three-dimensional analysis was conducted directly on the 3D models. It is banal to observe that aleatory –subjectivity, etc.– which often characterizes already known approaches, in any case assumed as a starting point, does not always allow to obtain generally valid results and, therefore, extendable beyond the single case study. The implementation of this first test, otherwise, proved to be extremely valid in the survey for architecture, both for an absolute evaluation of the quality of the individual results and for the possibility to estimate, also predictively, the relative effectiveness of the method used. This guarantees the evaluation of the relative percentages of errors in probabilistic terms.