bluuebunny/crossref_metadata_2025 huggingface dataset:
Les services d’eau potable à l’épreuve de la loi NOTRe
Authors: Pezon Christelle
Published: May 2020

La distribution d’eau potable est une compétence que les communes organisent soit à leur échelle soit en s’associant entre elles. Elles décident du mode de gestion de leurs services : soit gestion en régie soit gestion déléguée à un opérateur privé. À l’issue du processus de généralisation de la distribution d’eau potable (1880-1980), les services d’eau sont majoritairement organisés dans le cadre de syndicats de communes et gérés par délégation de service public. En 2014, la loi NOTRe transfère la compétence en matière d’eau potable des 36000 communes aux communautés et métropoles (2000). Ce Big Bang organisationnel est le point d’orgue d’une politique de rééquilibrage des modes de gestion des services d’eau urbains, et constitue, pour les services ruraux et des petites villes, une épreuve qui appelle de leur part une évolution transformative.
De l’électrification à la transition énergétique : des syndicats d’énergie en quête de consolidation institutionnelle
Authors: Poupeau François-Mathieu
Published: May 2020

Créés à partir de l’entre-deux-guerres, les syndicats d’énergie font partie des plus anciennes institutions intercommunales françaises. Régulièrement menacés de disparition, ils ont fait preuve d’une étonnante capacité de résistance en trouvant, tout au long de leur histoire, de nouveaux champs d’action pour se repositionner dans le paysage institutionnel local. Cet article revient sur cette trajectoire et montre comment, en l’espace d’un siècle, les syndicats ont entamé une double mutation. De structures très émiettées, ils se sont concentrés à l’échelle départementale. D’organisations centrées sur la gestion de l’électrification rurale, ils ont diversifié leurs domaines d’intervention, ce qui en fait aujourd’hui des acteurs importants de la transition énergétique et de l’équipement infrastructurel des territoires.
Pour rester calme au cœur de la crise
Authors: Mintzberg Henry , Boily Caroline
Published: May 2020

Le coronavirus force à revoir bon nombre de certitudes. Pour Henry Mintzberg, s’il y a un élément à retenir de cette crise, c’est bien la rapidité sans précédent avec laquelle elle a évolué et perturbé nos vies. Autre constat important : le Québec apprend à composer avec les répercussions de la pandémie en tentant de maintenir un équilibre entre le gouvernement, les entreprises et la société civile.
Prévoir l’imprévisible ?
Authors: Dubuc Alain
Published: May 2020

À quoi ressembleront les lendemains de cette pandémie ? Alors que les gouvernements, les institutions et les experts commencent à nous présenter des courbes, des scénarios et des prévisions de relance, bien malins seraient ceux qui pourraient prédire avec certitude de quoi sera fait le Québec de l’après-crise.
Le stress, une menace contre la performance
Authors: Lupien Sonia , Auger Claudine
Published: May 2020

Pour la docteure en neurosciences Sonia Lupien, le stress au travail n’a rien à voir avec un déséquilibre entre les ressources et les demandes. Il ne résulte pas non plus de la pression des délais serrés. C’est plutôt la détection d’une menace par le cerveau, un phénomène qui remonte aussi loin qu’à la préhistoire, lorsqu’un mammouth pouvait susciter deux réactions chez l’homme : la fuite ou la lutte.
Le courage moral : une denrée rare ?
Authors: Bertholet Jean-François , Gaudet Marie-Claude , Rousseau Alexandre
Published: May 2020

Dans le contexte des organisations modernes, qu’est-ce que le courage ? Prendre une décision d’affaires risquée, faire les choses différemment, être radicalement transparent : voilà autant d’actions courageuses. Mais d’un point de vue moral, le courage consiste surtout à convertir ses intentions en actions malgré les pressions internes et externes subies au quotidien.
Les mobilisations de solidarité avec le Chili : militantisme transnational et stratégies médiatiques (années 1970 et 1980)
Authors: Moine Caroline
Published: May 2020

Le coup d’État du 11 septembre 1973 au Chili contre le gouvernement d’Unité populaire fut suivi de fortes mobilisations militantes au nom de la solidarité contre la dictature. L’étude des acteurs et des pratiques de la médiatisation de cette solidarité permet d’interroger les modes d’expression d’un activisme transnational, dans un contexte de guerre froide, soulignant la diversité des stratégies à l’œuvre et l’évolution du répertoire médiatique mobilisé.
Paysages touristiques. Les photographies du Touring-Club de France pendant l’entre-deux-guerres
Authors: Schut Pierre-Olaf , Simon Gwendal
Published: May 2020

Le Touring-Club de France (TCF) est une société de touristes qui joue un rôle structurant sur l’organisation et le développement du tourisme en France avant sa prise en charge progressive par l’État. Il publie et diffuse une revue mensuelle à chacun de ses membres qui arbore une photographie de couverture à partir de 1920. L’analyse de ces photographies de couvertures pendant l’entre-deux-guerres permet de restituer l’action du TCF et d’identifier les attraits du tourisme. Ce dernier aspect de l’analyse, plus complexe, est décomposé en deux phases : ce sont d’abord les affections promues par le TCF qui sont identifiées. Puis, par la déconstruction du message de propagande, est entreprise une caractérisation plus large des sensibilités touristiques de cette époque. Pour mener à bien ce projet, ce travail s’appuie sur une analyse systématique de chaque cliché à l’aide d’une grille de lecture construite à partir d’outils sémiologiques.
Les nouvelles technologies numériques au service d'une mobilisation collective : le cas de la Révolution de la dignité en Ukraine
Authors: Dymytrova Valentyna
Published: May 2020

Cet article étudie les usages des nouvelles technologies numériques à des fins de mobilisation et de communication lors de la Révolution de la dignité en Ukraine. La recherche s’est basée sur l’observation ethnographique au sein des médias socionumériques menée entre novembre 2013 et février 2014. Internet et les outils numériques ont contribué à organiser et coordonner l’action collective, à attirer l’attention envers le mouvement de protestation et à proposer des cadres interprétatifs de la mobilisation collective.
Le journalisme citoyen au Mozambique : nature, légitimité et enjeux sociétaux
Authors: Pélissier Maud , CUMBE César
Published: May 2020

Au Mozambique, les mobilisations sociales récentes attestent d’une utilisation croissante des TIC, à l’instar des émeutes consécutives à une augmentation du prix du pain en 2010 comme plus récemment, lors des différents appels de soutien à la paix dans la capitale véhiculés par les réseaux sociaux. C’est dans un tel contexte que des pratiques inédites de journalisme citoyen ont vu le jour avec comme dessein de contribuer à la consolidation de la démocratie naissante en favorisant la prise de parole du citoyen dans un pays où l’accès à l’information est encore confidentiel. Deux d’entre elles ont attiré particulièrement notre attention pour deux raisons. D’une part, l’une et l’autre intègrent au cœur de leur démarche un dispositif socio technique de cartographie interactive similaire. D’autre part, elles émanent d’acteurs institutionnellement différents, la première étant issue du monde professionnel de la presse, la seconde des jeunes bloggeurs étudiants. Cet article se présente comme une étude de cas visant à éclairer la nature, la légitimité et les effets éventuels sur l’amélioration de la gouvernance et la consolidation de la démocratie de ces différentes manifestations de journalisme citoyen.
Cloud Computing as a Strategy for Preservation of Digital Resources in Academic Libraries in South Africa
Authors: Masenya Tlou Maggie
Published: May 2020

Academic libraries around the world have been struggling with how to preserve their intellectual output. Of all the preservation challenges facing academic libraries, none is more pressing than developing strategies for digital preservation. The chapter thus aimed at investigating the adoption of cloud computing as a strategy to preserve digital resources in academic libraries. Data collection was largely based on a critical review of literature relating to the adoption of cloud computing in academic libraries. The findings revealed that although cloud computing has been seen as one of suitable preservation strategies by many institutions, the level of its adoption is low in academic libraries in South Africa, especially in the area of preservation of digital resources. Several recommendations were also made, and among others were the enactment of preservation policies and improving technology infrastructure. The study further proposed a roadmap that will serve as a guide in the adoption of cloud computing in academic libraries.
All the World's a Stage
Authors: Grant Brian S.
Published: May 2020

This chapter provides a case study where a systematic, organized method of storytelling, presented as the Story-based Learning model, is used to design a series of integrated and engaging activities for cybersecurity training (to protect computer systems and networks) that fosters deliberate practice and improves performance. To address the talent shortage in the global cybersecurity workforce, the client developed a blended curriculum designed to provide practical experience to prospective cybersecurity professionals. A key component of this curriculum was the capstone exercises, activities focused on application of the content introduced in the courseware. Essentially, this is a story of using stories, one of humanity's oldest technologies, to solve the problem of training and cultivating expertise in future cybersecurity personnel. Based on solid prior evidence supporting the use of stories to increase engagement and retention, this case study focuses on detailing the thought process used to reach this set of solutions, as captured by the Story-based Learning model.
Integrating Organizational Values With Workplace Performance
Authors: Beaver Zachery Ryan , Baker Rose , Binder Carl
Published: May 2020

With an end goal to build and maintain a new workplace culture to support workplace performance, the central human resources shared services group for a large university initiated a pilot project to improve the performance of their processes, systems, and its human resources. Through the guidance of a performance improvement professional facilitator, the central group consulted various cultural models and change management methods to identify a pilot project. The implementation of a multilevel change methodology for performance improvement was applied to the work performed by the human resources information services (HRIS) group. Using their newly defined mission, vision, and values statements as a guide, the central human resources shared services group piloted one project with the subgroup then moved onto others. This case study focuses on the pilot project within the human resources information services (HRIS) group, the work of the performance improvement facilitator and the group's members, and the outcomes of their efforts.
The Flow System
Authors: Turner John R. , Thurlow Nigel , Rivera Brian
Published: May 2020

This chapter provides an overview of techniques, tools, and methods for organizations to manage and operate in today's complexity. Current literature is lacking in providing techniques and tools for organizations to operate in complex environments. This gap in the literature is especially troubling for practitioners who are trying to learn and apply new tools to support their customers in implementing new innovation initiatives. The techniques, tools, and methods provided in this chapter were derived from a joint effort from academia, industry, and the Navy. This juxtaposition of tools and practices provides a praxis that ranges from creativity, innovation, performance improvement, organization development, organizational improvement, and organizational transformation.
A Review on FPGA-Based Digital Filters for De-Noising ECG Signal
Authors: Nayak Seema , Nayak Manoj , Pathak Pankaj
Published: May 2020

This chapter gives an overview of synthesis and analysis of digital filters on FPGA for denoising ECG signal, which provides clinical information related to heart diseases. Various types of IIR and FIR filtration techniques used for noise removal are also discussed. Many developments in the medical system technology gave birth to monitoring systems based on programmable logic devices (PLDs). Although not new to the realm of programmable devices, field programmable gate arrays (FPGAs) are becoming increasingly popular for rapid prototyping of designs with the aid of software simulation and synthesis. They are reprogrammable silicon chips, configured to implement customized hardware and are highly desirable for implementation of digital filters. The extensive literature review of various types of noise in ECG signals, filtering techniques for noise removal, and FPGA implementation are presented in this chapter.
Hybrid Genetic Approach for Solving Fuzzy Graph Coloring Problem
Authors: Basmassi Mohamed Amine , Boudaakat Sidina , Benameur Lamia , Bouattane Omar , Rebbani Ahmed , Chentoufi Jihane Alami
Published: May 2020

A hybrid genetic approach (HGA) is proposed to solve the fuzzy graph coloring problem. The proposed approach integrates a number of new features, such as an adapted greedy sequential algorithm, which is integrated in genetic algorithm to increase the quality of chromosomes and improve the rate of convergence toward the chromatic number. Moreover, an upper bound is used to generate the initial population in order to reduce the search space. Experiments on a set of five well-known DIMACS benchmark instances show that the proposed approach achieves competitive results and succeeds in finding the global optimal solution rapidly for complex fuzzy graph.
Reinstate Authentication of Nodes in Sensor Network
Authors: N. Ambika
Published: May 2020

Transmitting data using the wireless medium provides a greater opportunity for the adversary to introduce different kinds of attacks into the network. Securing these monitoring devices deployed in unattended environments is a challenging task for the investigator. One of the preliminary practices adopted to ensure security is authentication. The chapter uses a new authentication procedure to evaluate the nodes. It uses sensors of a different caliber. Static and mobile nodes are used to bring the thought into play. The mobile nodes in the network demand vigorous defense mechanisms. The chapter defines a new authentication algorithm engaging itself to validate the communicating parties. The work is devised to substitute new nodes into the cluster to foster prolonged working of the network. By adopting the proposed protocol, backward and forward secrecy is preserved in the network. The work assures the security of the nodes by minimizing forge and replay attacks.
Critical Review of Entrepreneurship Development in Namibia
Authors: Shikokola Sigried
Published: May 2020

With the appearance of entrepreneurship as a major economic force, the field of entrepreneurship education and training had gained legitimacy and had grown substantially. In Namibia, however, the trial of complete academic legitimacy for entrepreneurship development remains. Entrepreneurs and SMEs are considered as change agents in altering economies, and the implication of entrepreneurship and SME development is not often realized and normally ignored. Despite heightened awareness and interest by both scholars and practitioners, entrepreneurship development for entrepreneurs is still an emerging field of inquiry. Furthermore, limited research has so far been conducted on entrepreneurship development for entrepreneurs in the Namibian context. A review of the literature on entrepreneurship development revealed a critical review gap. Therefore, the chapter intends to review critically entrepreneurship development in Namibia and to suggest the way forward regarding entrepreneurship, youth, and entrepreneurs in order to fight poverty and unemployment.
Basalt Reinforced Plastic - Development and Modeling of Part
Authors: Vosáhlo Josef , Ryvolová Martina
Published: May 2020

Basalt fibers are increasingly emerging as reinforcement of composite materials. Their use is purely technical, depending on the properties of the basalt fibers: thermal, chemical and electrical resistance, good mechanical properties and low environmental impact. Basalt fibers reinforced plastics penetrate to automotive, aerospace, building construction and building reparation, industrial applications, oil industry and sport tools. The topic of the paper is to find out the mechanical properties of basalt fiber reinforced plastic (BFRP) and to create a model of split pin that is originally made of steel. Basalt woven fabric was selected for this experiment. Two weave - plain and twill was available. Tensile strength test was made in three basic directions: 0°, 90° and 45°. Epoxy resin was used for production composite plates with one layer basalt reinforcement. Tensile strength test of composite plates provided input parameters for numerical model of small composite part - split pin. Real composite split pin will produced according to modeling properties. Weight decrease was supposed, this assumption was confirmed.
FEM Simulation of Composite Polyurethane Foam for Car Seat Cushion
Authors: Srb Pavel , Petrů Michal
Published: May 2020

Reduction of both harmful emissions and energy performance intensity of transportation currently ranks among the most important factors influencing the current trends in the development of components used in the automotive industry, particularly due to the legislative regulations concerning the reduction of greenhouse gases. For car producers is one of the possible ways of how to achieve such a goal is to reduce the weight of individual car components while maintaining or improving their in-use material properties. Therefore, the requirement of weight reduction also applies to car seat cushions. FEM a very powerful tool of mechanical parts design. A composite material model has been designed and verified. There were created structural models enabling us to study and visualize the stress distribution between the fibers and the polyurethane foam structure, the structural models were created by means of model simulations using the finite elements. Several configurations of structural models with horizontal and vertical threads were created. Then were developed FEM simulations corresponding with real geometry of the composite seat cushion and their results were evaluated.
Fluid Property Adjustment of Water-Ethanol Mixture for the Application of Metal Foam Production
Authors: Attia Shehab , Fraňa Karel , Nová Iva , Hdaib Mohamed
Published: May 2020

In this paper, a case study is performed for the possibility of using water ethanol mixture in predicting the bubble behavior in multiphase flow. The study compares the concept of formation of foam at the surface of the mixture with the procedure of producing aluminum foam by direct gas injection. Material properties such as kinematic viscosity, density and surface tension on the foaming process will be studied experimentally, while the foam bubble size will be studied by means of digital image processing. Finally the path of the bubble from the nozzle to the liquid surface shall be simulated by means of computational fluid dynamics software and verified experimentally by the usage of a speed camera. Acquirement of this practical knowledge can improve the effectiveness of the real foaming process of the aluminum and aluminum alloys. Simultaneously, it helps to understand main basic features of the formed metal foams. The study is meant to define the best parameters for the foaming process for water-ethanol mixture. Such results are to be compared to their corresponding parameters for the direct injection foaming method for aluminum. The main aim to be able to correlate the 2 processes, in means to decreasing time and cost required to produce aluminum metal foam through test trials, usually causing the waste of material, fuel and energy. Furthermore, the quality and quantity evaluation of the created foam is presented. The effect of the flow rate of the quality of foams can be observed experimentally. The theoretical calculation can reproduce the bubble dynamics observed experimentally.
Electron Beam Welding of Aluminium Alloy AW2099
Authors: Urminský Ján , Marônek Milan , Bárta Jozef , Sahul Martin , Jurina František , Pašák Matej
Published: May 2020

The paper deals with the analysis of mechanical properties of welded joints made of AW 2099 aluminium-lithium alloy by electron beam welding. The thickness of the experimental material was 3±0.2 mm. PZ EZ 30 STU electron beam welding machine was used for production of welds. Maximum accelerating voltage used within this study was 55 kV. Metallographic analysis, hardness measurement test and static tensile were carried out. The structure of the weld joint of aluminium-lithium alloy was investigated. Produced welded joints were characterized by the presence of following zones: heat affected zone (HAZ), equiaxed non-dendritic zone (EQZ), columnar dendritic zone (CDZ) and equiaxed dendritic zone (EDZ). EQZ grains were formed due to heterogeneous nucleation on precipitates at the fusion boundary. EQZ is typical for joining of aluminium lithium alloys.
Determination of GD&T Features Varying the Setting Parameters of X-Ray Computed Tomography by Response Surface Method
Authors: Dao Anh , Drégelyi-Kiss Ágota
Published: May 2020

Measuring dimensional parameters (such as diameter, distance) by industrial computed tomography (CT) becomes more and more popular because of its advantages such as non-destructive method and short measurement time. However, the goodness of the measured values needs to be evaluated as a requirement of quality control. An aluminium test piece are designed and manufactured for mapping the measurement errors and uncertainties in case of dimensional CT measurements. In this article, the measurement errors are investigated based on the results of an experimental design, response surface method (RSM). Three main factors are varied systematically: the magnification of the CT, the numbers of views (NoV), and the set-up of the scanning mode. In the course of measurement evaluation several GD&T parameters are determined such as diameter of holes, distances between the holes, flatness and perpendicularity. The purpose of this research is to calculate the measurement errors and to determine the factors which have an effect on the dimensional CT measurement process.
Fractographic Analysis of Castings from Al-Si Alloy Produced by Low-Pressure Casting
Authors: Svobodová Jaroslava , Michna Štefan , Hren Iryna
Published: May 2020

The article deals with the use of newly developed hypoeutectic silumin type AlSi9NiCuMg0.5 in manufacturing practice. This type of silumin has been produced and patented by a team of workers at the Faculty of Mechanical Engineering at the University of J. E. Purkyně in Ústí nad Labem, Czech Republic. This alloy was developed and tested directly for the technical practice where the special mechanical and technological properties of the alloy were required [1]. The experiment, which is presented in this paper, focuses on the cause of the castings cracking in operating conditions. When the material was put into practice, castings were produced and subsequently used for breaking and cracking across the entire casting section. AlSi9NiCuMg0.5 alloy castings were manufactured using low-pressure technology. The research is focused on the observation of the fracture surface, identification of microstructure of AlSi9NiCuMg0.5 alloy casting and determination of the chemical composition of structural components on the surface of fracture by EDS analysis. Fractional field research has measured the chemical composition and it has been compared with the required declared alloy. Increased iron content and associated intermetallic phases were identified in the alloy. Evaluating of the obtained results can identify the cause of the premature cracking of the castings made from the newly developed hypoeutectic silumin.
Experimental Determination of Mechanical Properties of Waste Steel Sheets
Authors: Čačko Viliam , Onderová Iveta , Šooš Ľubomír , Varga Pavol , Smelík Andrej
Published: May 2020

The paper is primarily focused on the determination of the ultimate strength of pressed materials in the form of steel sheets. The breaking strength of homogeneous materials such as e.g. steel sheet is not a relevant indication for pressed steel sheet waste material. The ultimate strength serves as a main parameter in the design of sheet metal cutting machines. For the design and technological design of machines and equipment for shearing steel waste in the form of pressed sheets, it is necessary to know the limit strength of the material. The paper describes in detail the experimental procedure and the principle of determining the ultimate strength of the steel waste sheet. Several dozen experimental samples of pressed metal waste were used. The very principle of the experiment consisted of sheared samples, while monitoring the shear force and the thickness of the pressed material. The ultimate strength of the shear material was calculated from the measured data. The measured and calculated data were statistically processed to increase the objectivity of the determination of the already mentioned ultimate strength parameter of the pressed waste sheets.
Assessment of the relation between religiosity, anxiety, depression and psychological resilience in nursing staff
Authors: Fradelos Evangelos C. , Alikari Victoria , Vus Viktor , Papathanasiou Ioanna V. , Tsaras Konstantinos , Tzavella Foteini , Lekka Dimitra
Published: May 2020

The nursing profession is considered to be an emotionally demanding profession often lead to various psychological difficulties and extend level stress. Religiosity and religion in general, have been associated with positive outcomes in an individual’s life such as higher self-esteem, better quality of life and psychological wellbeing. The purpose of this study was to examine the relation between nurses’ religiosity, psychological resilience, and psychological wellbeing. In this cross-sectional study, 378 nurses participated. Dada were collected by using Centrality of Religiosity Scale, The Patient Health Questionnaire Two-Item Depression Scale, The Generalized Anxiety Disorder Questionnaire, Connor-Davidson Resilience Scale 25. Percentages, means, and standard deviations were calculated. In addition the parametric t-test and ANOVA were used. Also, logistic regression analyses were used to determine which factors affect the depression and anxiety of nurses. Results indicated differences with a probability of less than or equal to 0.05 were accepted as significant. For statistical analysis, we used the statistical program SPSS 25. According to our results although religious practices can be a protective factor for both depression and anxiety, religious beliefs and experiences can increase the levels of depression and anxiety as well.
Clinical supervision in oncology: A narrative review
Authors: Hession Natalie , Habenicht Andrea
Published: May 2020

The aim of this narrative literature review is to (a) review all empirical studies of clinical supervision (CS) in oncology and to (b) highlight some CS practice issues distinctive to cancer care. This review identified empirical studies related to qualified professionals and published in English since 1995 that connected to CS and oncology. A total of 15 studies were identified with the majority as small scale, exploratory and qualitative. Psychologists were predominantly utilised as facilitators of the CS with varied sample sizes ranging from 5-230 participants. The studies were grouped into three main categories; the impact of supervision on staff, impact of supervision on professional care/development and impact of supervision in existential exploration. This review highlighted the positive impact of CS while demonstrating the need for more methodologically sound programmes of research into CS in cancer settings so detailed models of effective supervision can develop and thereby inform practice.
Tobacco smoking, related harm and motivation to quit smoking in people with schizophrenia spectrum disorders
Authors: Caponnetto Pasquale , Polosa Riccardo , Robson Deborah , Bauld Linda
Published: May 2020

This narrative review focuses on the topic of tobacco smoking amongst people with schizophrenia spectrum disorders. We searched PubMed, PsycInfo and Scopus databases for schizophrenia spectrum disorders and smoking and included articles about the epidemiology of tobacco smoking in people with schizophrenia spectrum disorders, examining the relationship between smoking and mental health. This narrative review describes that a higher prevalence, frequency and impact of both high nicotine dependence and its harmful effects in patients with schizophrenia spectrum disorders compared with those in the general population. Despite several existent theories, the reasons for high smoking rates, the high dependence on nicotine and severity of nicotine withdrawal symptoms are not fully understood. The main aim of this paper is to inform mental health personnel and particularly clinical and health psychologists about the impact and role of tobacco smoking for smokers with schizophrenia spectrum disorders.
Frobenius degenerations of preprojective algebras
Authors: Kaplan Daniel
Published: May 2020

In this paper, we study a preprojective algebra for quivers decorated with

k

-algebras and bimodules, which generalizes work of Gabriel for ordinary quivers, work of Dlab and Ringel for k-species, and recent work of de Thanhoffer de Völcsey and Presotto, which has recently appeared from a different perspective in work of Külshammer. As for undecorated quivers, we show that its moduli space of representations recovers the Hamiltonian reduction of the cotangent bundle over the space of representations of the decorated quiver. These algebras yield degenerations of ordinary preprojective algebras, by folding the quiver and then degenerating the decorations. We prove that these degenerations are flat in the Dynkin case, and conjecture, based on computer results, that this extends to arbitrary decorated quivers.
Weak limits for weighted means of orthogonal polynomials
Authors: Erb Wolfgang
Published: May 2020

This article is a first attempt to obtain weak limit formulas for weighted means of orthogonal polynomials. For this, we introduce a new mean Nevai class that guarantees the existence of a limiting measure for the weighted means. We show that for a family of measures in this mean Nevai class also the means of the Christoffel–Darboux kernels and the asymptotic distribution of the roots converge weakly to the same limiting measure. As a main example, we study the mean Nevai classes in which the limiting measure is the orthogonality measure of the ultraspherical polynomials. The respective weak limit formula can be regarded as an asymptotic weak addition formula for the corresponding class of measures.
Effects of the export restrictions on birch log market in Northwest Russia
Authors: Karvinen Sari , Mutanen Antti , Petrov Vladimir
Published: May 2020

Russia is planning to impose an export quota for birch logs in 2018, reasoned by the increasing export volumes and rising price of birch logs harming the domestic plywood production. In this paper, the possible effects of the planned export quota are analysed by scrutinising the interdependencies between the exports, domestic consumption, and prices of birch logs in Northwest Russia, the largest producer of plywood and exporter of birch in Russia.  According to the results, the domestic demand has determined the price development of birch logs, while the effect of exports has remained week. It can be concluded, that the total demand for birch logs in Northwest Russia has been dominated by domestic consumption and it seems that despite the parallel rising trends of domestic use and export volumes, the birch log resources and harvesting volumes have been adequate to meet the increasing demand. Notwithstanding the periodical fluctuations, the long term development of price of birch logs has remained rather steady in the region. Thus, the effect of the quota on birch log price development in the domestic Russian roundwood markets would probably remain small. However, the quota would likely be contrary to trade agreements, add to bureaucracy and destabilise the operating environment of logging companies as well as international buyers of Russian roundwood.
The Correlation Among The Attitudes Toward Learning English And Achievements of The First Year Students of Air Transportation Management II In CASEA Surabaya
Authors: Fatmawati Fatmawati
Published: May 2020

This study attempts to know the correlation among the attitudes toward learning English, and achievements of the first year Air Transportation Management II students of Casea Surabaya. This study is limited in Academic year 2015/2016. The limitation based on the following consideration; the first, in Academic year 2015/2016 is the moment of the students to measure their skills during one year; the second, they still have the time to improve their English skill and study hard than before.Based on the research problems, research objectives and explanations that have been given, the writer can deliver the conclusion as follows; The mean of the attitudes questionnaire is 63.26. It is a good category and there is significant correlation between the students' English achievement and the students' achievement in the first year of CASEA Surabaya. From the interpretation of data, the score is-0,13. Consider of the table significant level is including a low correlation
Sistem Kendali Pintu Gerbang dengan Menggunakan Bluetooth Android
Authors: Setiawan Ariyono , Suprapto Yuyun , Warsito Totok
Published: May 2020

There are less constraints responded a remote device that is controlled by conventional control (still using infrared as a transmission medium). This led the creation of new control system which utilizes Bluetooth as a medium of communication. The working principle of this control system design is to use a cell phone as a microcontroller as remotnya and data processing and control. The design is driven by a series of minimum ATMega system with IC 16 as a processor and controller
Peningkatan Prestasi Belajar Writting Melalui Penggunaan Model Experiental Learning Taruna Teknik Telekomunikasi dan Navigasi Udara Politeknik Penerbangan Surabaya Tahun 2017/2018
Authors: Fatmawati Fatmawati , Budiarto Anton
Published: May 2020

Pembelajaran yang dirancang oleh dosen harus menggunakan model yang sesuai dengan situasi atau kondisi pembelajaran, media yang digunakan dan kompetensi yang ingin dicapai sehingga tercipta pembelajaran efektif, efesien dan menyenangkan bagi taruna yang belajar dan pada akhirnya taruna mendapatkan pengalaman yang bermakna bagi dirinya. Peneliti ingin mengetahui peningkatan prestasi belajar Writing melalui penggunaan Model Experiential Learning Taruna Telekomunikasi dan Navigasi Udara Poltekbang Surabaya. Saat belajar Writting seringkali taruna melakukan kesalahan saat membuat dan menggunakan kata kata tentang music, movies, TV programs, entertainer, invitations, excuses, date, and time. Hal ini dikarenakan dosen tidak tepat dalam memilih model pembelajaran. Permasalahan mendasar dalam penelitian ini adalah sebagian besar Taruna Telekomunikasi dan Navigasi Udara Poltekbang Surabaya Tahun Pelajaran 2017/2018 kurang mampu dalam Writting. Tujuan yang diharapkan dari penelitian ini adalah untuk mengetahui apakah penggunaan Model Experiential Learning dapat meningkatkan prestasi belajar Writting Taruna Telekomunikasi dan Navigasi Udara Poltekbang Surabaya tahun pelajaran 2017/2018
Rancangan Alat Re-setting Precision Approach Path Indicator (PAPI) Menggunakan Motor DC Dengan Sistem Computerize
Authors: Kustori Kustori , Suhanto Suhanto
Published: May 2020

Precsicion approach path indicator atau biasa disebut PAPI merupakan alat bantu pendaratan yang paling vital untuk penerbang, diperlukan kepresisian tinggi untuk dapat membantu seorang penerbang atau pilot untuk mendaratkan pesawat udara. Dalam kenyantaannya PAPI di bandara seringkali mendapat masalah yang menyebabkan kepresisian PAPI dipertanyakan. Oleh karena itu dalam tugas akhir ini penulis ingin membuat suatu alat yang dapat mengatur kepresisian PAPI dari jarak jauh dengan bantuan motor dc dan microcontroller AT89S51 yang terhubung secara computerized.
Pengenalan Bentuk dan Pola Suara bagi Anak Anak Penyandang Tuna Rungu
Authors: Setiawan Ariyono
Published: May 2020

IInability to speak for the Deaf child is a distinctive characteristic that makes it different from normal children. Children with normal hearing understand the language through hearing in the months before they start talking. Speech recognition or recognition of voice patterns in children Deaf as search forms grades suitability and appropriateness. the type of sound is a development from techniques and systems that enable the computer to accept input in the form of patterns spoken word so on get the value of the type of words approaches, and can be understood. This study proposes a solution in Method utilizes biometrics to recognize the type of sound patterns deaf children who will be in the skewer with the sound of a normal child. Biometric methods used in digital signal processing (in this case sound) in the form of discrete biometrics refers to the automatic identification of humans by psikological or basic human characteristic sound.
Prediksi Lalu-lintas Penumpang Bandar Udara Soekarno-hatta Dengan Teknik Time-series Trend Forecasting
Authors: Pahala Fitrady
Published: May 2020

Berdasarkan data Airport Council International (ACI) tercatat jumlah penumpang Bandar Udara Internasional Soekarno-Hatta hingga akhir tahun 2017 telah mencapai 63 juta penumpang. Sebagai “bandar udara hub utama” di Indonesia Soekarno-Hatta menguasai hampir 55-57 persen total jumlah lalu lintas penumpang angkutan udara di Indonesia. Kapasitas terminal penumpang Soekarno-Hatta untuk saat ini di tahun 2018 secara keseluruhan mampu melayani hingga 70 juta penumpang per tahun. Terdapat kemungkinan di masa 10 tahun mendatang, kapasitas terminal saat ini akan mengalami kepadatan (undercapacity problem), dan diperlukan analisa untuk memprediksi jumlah penumpang hingga tahun 2027. Metode prediksi tren serial-waktu didasarkan pada data historis penumpang Soekarno-Hatta dari tahun 1986 hingga 2017. Terdapat 4 model teknik analisa serial-waktu, meliputi 1) tren linier, 2) tren eksponensial, 3) double eksponensial smoothing 3) Dekomposisi Winter atau multiplikatif. Berdasarkan 4 metode tersebut diperoleh hasil prediksi bahwa Soekarno-Hatta masing-masing akan melayani antara 68 hingga 74 juta penumpang dan 87 hingga 101 juta penumpang pada tahun akhir tahun 2019 dan 2027. Dengan tingkat kesalahan prediksi (MAPE) antara 1,89 hingga 9,75 persen, disimpulkan bahwa pada 10 tahun mendatang Soekarno-Hatta akan mengalami kepadatan penumpang dengan kelebihan antara 24 hingga 44 persen.
Oral cultures and sexism: A comparative analysis of African and Punjabi folklore
Authors: Khan Lubna Akhlaq , Awan Muhammad Safeer , Hussain Aadila
Published: May 2020

The present study embarked with a supposition that there are similarities (traditional, under-developed, agri-based) between the Punjabi and African cultures, so the gender ideology might have similar patterns, which can be verified through the analysis of oral genres of the respective cultures. From Africa, Nigerian (Yoruba) proverbs are selected to be studied in comparison with Punjabi proverbs, while taking insights from Feminist CDA (Lazar 2005). The study has examined how Punjabi and Yoruba proverbs mirror, produce and conserve gendered ideology and patriarchism. Punjabi proverbs are selected through purposive sampling from ‘Our Proverbs’ (Shahbaz 2005) and Yoruba examples (with English translations and interpretations) are elicited from a dictionary of Yoruba proverbs (Owomoyela 2005), as well as articles written about gender by native Yoruba researchers. The investigation has uncovered through thematic content analysis that the portrayal of women in both communities is primarily biased, face-threatening and nullifying. Both languages have presented womenfolk mainly as unreliable, insensible, loquacious, insincere, ungrateful, opportunist, materialistic and troublemaking. Men have been depicted for the most part as aggressive, rational, prevailing, and anxious to take risks. This analysis infers that in asymmetrically organised Punjabi and African (Yoruba) communities, proverbs are deliberately sustaining inequality.
Maximum Boundaries for Cones of Continuous Functions on a Compact Space and Integral Representations for Linear Functionals
Authors: Chui Chen Foo , Roth Walter
Published: May 2020

We present a simplified and easily accessible approach to the integral representation for continuous linear functionals on a cone of continuous real-valued functions on a compact set. The measures defining these integrals are supported by the maximum boundary of the respective cones.
Characterization of a Reservoir Fluid Based on an Analysis of Intrinsic Properties Using the Adaptive Batzle-Wang Method in Field “M”
Authors: Rosid M. Syamsu , Iksan Muhammad` , Wardhana Reza , Haidar M. Wahdanadi
Published: May 2020

The physical properties and phases of a fluid under reservoir conditions are different from those under surface conditions. The value of a fluid property may change as a result of changes in pressure and temperature. An analysis of the intrinsic properties of fluids is carried out to obtain a fluid model that corresponds to fluid conditions in a reservoir. This study uses the Adaptive Batzle-Wang model, which combines thermodynamic relationships, empirical data trends, and experimental fluid data from the laboratory to estimate the effects of pressure and temperature on fluid properties. The Adaptive Batzle-Wang method is used because the usual Batzle-Wang method is less suitable for describing the physical properties of a fluid under the conditions in the field studied here. The Batzle-Wang fluid model therefore needs to be modified to obtain a fluid model that adjusts to the fluid conditions in each study area. In this paper, the Adaptive Batzle-Wang model is used to model three types of fluid i.e. oil, gas, and water. By making use of data on the intrinsic fluid properties such as the specific gravity of the gases (G), the Gas-Oil Ratio (GOR), the Oil FVF (Bo), the API values, the Salinity, and the Fluid Density obtained from laboratory experiments, the Batzle-Wang fluid model is converted into the Adaptive Batzle-Wang model by adding equations for the intrinsic fluid properties under the pressure and temperature conditions in the field reservoir. The results obtained are the values of the bulk modulus (K), the density (ρ), and the P-wave velocity (Vp) of the fluid under reservoir conditions. The correlation coefficient of the Adaptive Batzle-Wang model with the fluid data from the laboratory experiments is 0.95. The model is well able to calculate the fluid properties corresponding to the conditions in this field reservoir. The model also generates a unique value for the fluid properties in each study area. So, it can adjust to the pressure and temperature conditions of the field reservoir under study. The Adaptive Batzle-Wang method can therefore be applied to fields for which laboratory fluid data is available, especially fields with a high reservoir pressure and temperature. The results of the fluid modeling can then be used for rock physics and Fluid Replacement Model analysis.
Effects of Acacia invasion on leaf litter nutrient and soil properties of coastal Kerangas forests in Brunei Darussalam
Authors: Yusoff Aiman , Tennakoon Kushan U. , Jaafar Salwana Md. , Pg Zaman Dk Nur Amal Nazira , Sukri Rahayu Sukmaria
Published: May 2020

Exotic Acacia were introduced to Brunei Darussalam in the 1990s for plantation forestry and land rehabilitation but are now regarded as invasive. We assessed the effects of Acacia on litter nutrient composition and soil physicochemical properties of Brunei’s coastal Kerangas (heath) forests. Soil and litter samples were collected from ten 20 x 20 m plots in Acacia-invaded Kerangas forests (IKF) and ten uninvaded (UKF) plots. Soil samples were analyzed for pH, gravimetric water content and nutrient concentrations whereas litter samples were analyzed for total nutrients only. We recorded significantly higher concentrations of litter total N and P in the IKF than the UKF plots. In contrast, no significant differences were detected in soil properties, except for topsoil available P and subsoil exchangeable Ca which were both lower in the IKF plots. A significant positive correlation was detected between litter N and topsoil N in the IKF plots. We suggest that the fairly recent timescale of Acacia invasion (< 25 years) of the IKF sites resulted in the lack of significant increase of soil nutrients. In conclusion, Acacia invasion into Brunei’s forests can potentially alter both leaf litter and soil physicochemical properties of Kerangas forests, in particular affecting nutrient availability. This alteration of ecosystem may further enhance the invasion success of Acacia, making restoration attempts more challenging.
Petrography of aggregates in Luzon, Philippines: Identification of components and deleterious materials
Authors: Balangue-Tarriela Maria Ines Rosana , Lagata Cleodette L. , Leuterio Raymond G. , Caluen-Abad Ma. Lourdes
Published: May 2020

Petrography is one of a series of standard tests used to assess an aggregate’s components, mechanical qualities, durability, chemical stability, and alkali reactivity. In this study, aggregate materials were collected from rock exposures and/or alluvial deposits from four areas near Metro Manila, Philippines: Bulacan, Rizal, Pampanga, and Zambales. Transmitted light microscopy was conducted to identify rock types and characterise physical and chemical properties that may present potential problems when used as aggregate materials. The results show that the aggregates vary in terms of rock types and alteration type. Samples from Bulacan are mostly porphyritic basalt and fine to coarse-grained sandstone with veinlets of silica and carbonate. The presence of cavities and microfractures caused mainly by vesicles from the volcanic rocks was also observed. Rizal aggregates are composed predominantly of chloritized basalts and andesites with minor clastic rocks and tuffs. The aggregates from Zambales are products of erosion of the Zambales Ophiolite, mixed with the lahar deposits from the Pinatubo eruption. On the other hand, Pampanga aggregates are mostly lahar deposits, containing pumice, a poor choice for aggregate composition due to its low hardness, brittleness and vesiculated texture. Aside from the lithological classification, potentially alkali-reactive constituents were also observed in selected samples from the four sampling areas.
Prevalensi Terjadinya Caseous Lymphadenitis Pada Kambing Shaanen BBPKH Cinagara
Authors: Aryanti Fera , Romadhiyati Farissa
Published: May 2020

Penelitian ini dilakukan untuk mengetahui prevalensi (tingkat kejadian) penyakit Caseous Lymphadenitis yang ditandai dengan timbulnya abses pada limfoglandula superfisial atau internal pada kambing Shaanen. Data diambil dari kasus kejadian abses Caseous Lymphadenitis khususnya pada Kambing Shaanen yang ada di Peternakan Kambing BBPKH Cinagara - Bogor. Data yang digunakan meliputi catatan gejala klinis serta hasil bedah bangkai (nekropsi) kambing Shaanen yang mati diduga karena menderita Caseous Lymphadenitis. Data yang diperoleh dianalisis sesuai dengan literatur rujukan. Nilai prevalensi dihitung dengan cara menghitung jumlah Kambing Shaanen yang mengidap abses dibagi jumlah total Kambing Shaanen dikali dengan 100%. Hasil penelitian prevalensi Caseous Lymphadenitis pada Kambing Shaanen adalah 100%. Penelitian lanjutan yang dapat dilakukan diantaranya adalah untuk melihat gambaran hasil pemeriksaan darah dan identifikasi mikroorganisme penyebab yang dikoleksi dari abses Kambing Shaanen penderita Caseous Lymphadenitis serta mencari faktor – faktor resiko penyebab abses tersebut.