bluuebunny/crossref_metadata_2025 huggingface dataset:
Impact of Risk Factors on Construction Projects’ Completion Cost in Nigeria
Authors: Ishaq Z. H
Published: May 2021

Construction projects are prone to a number of risks due to their complexity, dynamic nature, capital intensive nature and involvement of many stakeholders. These risks if left unmanaged will negatively influence the completion cost and other primary objectives of construction projects. Numerous studies have been conducted globally to determine the potential risks that negatively impacts construction projects; however, the risks aren’t alike across all the regions and the potential degree of impact may changes with time. This study assessed the impact of risk factors on completion cost of construction projects in Nigeria. Data was collected using structured questionnaires administered to 192 construction practitioners using convenience sampling technique. Descriptive statistics (mean and standard deviation) were used to analyse the data. The study found ‘inadequate cost estimate’ (MS = 4.39), ‘risk incurred due to bribery and corruption’ (4.30), ‘increase in prices of materials’ (4.25), ‘increase in cost of labour’’ (4.11), ‘poor cash flow management’ (4.04) ‘mistakes/errors in design’ (4.04) and ‘mistakes during construction’ to be the topmost risk factors that impact on project completion cost. The study concludes that ‘economic’, ‘financial’ and ‘contract administration and project management’ related factors group are those with high impact on project completion cost.
O consenso de Washington no Brasil
Authors: Carretoni Vaz Vinícius Rezende , Merlo Edgard Monforte
Published: May 2021

Since the 1970s, several Latin American countries have started to adhere to economic policies stemming from neoliberal thinking, starting in Chile, with a greater degree of “experimentation” and in the midst of a dictatorship. Subsequently, mainly after the production of the document entitled “Washington Consensus”, this economic thought passes through an emperor in the region. Brazil, unlike Chile, was one of the last countries to practice policies based on this thought and only after the democratization process, which leads us to a question of what are the consequences of the Washington consensus in Brazil. Among the hypotheses, we have the stabilization of specific macroeconomic indices and greater economic openness. This article aims to detail the reflexes of adherence to neoliberalism in economic policy and affect these Brazilian policies.
De Bretton Woods ao regime de bandas cambiais
Authors: Braz Emerson Davi Pereira
Published: May 2021

This paper aims to briefly show how the model of international exchange rate regime was defined shortly after World War II, as well as to analyze the main exchange rate regimes and their general methods of operation throughout the 20th century, in addition to showing part of the contribution of the thinking that was in evidence at Bretton Woods. In addition, this research aims to partially analyze the results of exchange rate variations essentially between 2009-2019, during the Dilma-Temer Governments. Furthermore, it seeks to bring part of the discussion that the exchange rate variation over the period had on the Brazilian economy.
Sobre uma reivindicação de direitos
Authors: Leite Felipe Melonio
Published: May 2021

We look, in this paper, the reception of the althusserianism as bearer of a challenge to the social theory project’s, namely, the affirmation of the partial character of all possibility of unequivocal closure to the theoretical making. This damage was, certainly, thought provoking for authors of other theorical bases. We noticed, in the present elaboration, three paradigmatic responses that worked as a reaffirmation of a basilar point for their theoretical buildings. They were answers against elements, since the beginning, present in the althusserian critic: the theoretical anti-humanism, the anti-historicism and the normative anti-teleologism. We will analyze, for that matter, the approaches of Carlos Nelson Coutinho, E. P. Thompson and Ruy Fausto, exponents of each of the perspectives mentioned above.
Protesto e democracia
Authors: Souto Emilayne
Published: May 2021

TRINDADE, Thiago Aparecido. Protest and Democracy: Urban Occupations and the Fight for the Right to the City. 1.ed. Jundiaí, SP: Paco, 2017. 300 p.
Submitted on: 10/22/2019Accepted on: 06/16/2020
Sobre momentos críticos, problemas públicos e arena pública
Authors: Antunes Henrique Fernandes
Published: May 2021

This article presents the main contributions to the Social Sciences of some of the leading authors of French pragmatism. However, given the variety of authors, themes, and concepts that orbit pragmatist sociology, we chose to focus on the sociology of criticism by Luc Boltanski and Laurent Thévenot, Daniel Cefaï's studies, and, to a lesser extent, Louis Queré’s, about problematic situations, public problems and the public arena. Thus, this brief and interested incursion into the debate undertaken by pragmatist authors intends to outline some key elements of the debate, highlighting the main arguments and concepts of this important academic movement.
Notas sobre humor e fronteiras
Authors: Figueiró Lucas Woltmann
Published: May 2021

The present writing deals with humor, more specifically its subtle transit between the borders of playfulness, social and political criticism and moral insult. Seeking to present some of the dilemmas that this transit raises, I mobilize comprehensive clues from fields such as psychoanalysis and anthropology and analyze some exemplary cases. The material consulted for this is diverse, but it focuses mainly on audiovisual productions (especially comedy series), newspapers and periodicals that are admittedly humorous/satirical or not and how they deal with topics such as gender, sexuality, migratory flows and the drama of refugees. From this path, the idea is to trace some useful clues to invest in the critical study of humor.
Pengaruh Pengelasan Besi Cor FC dengan Metode Preheat dan Post Weld Heat Treatment Menggunakan Elektroda Paduan Nikel Rendah
Authors: Iman Darul , Purwanto Helmy
Published: May 2021

Dalam pengelasan ada beberapa logam yang mempunyai sifat mampu lasnya kurang baik. Besi cor putih contohnya, ini tidak disarankan untuk di las karena bersifat sangat keras dan tidak mempunyai grafit melainkan hanya besi karbida. Lain halnya dengan besi cor putih, besi cor kelabu termasuk kategori logam yang dapat dilas walaupun sifat mampu lasnya rendah. Besi cor kelabu dapat dilas dengan baik apabila sebelum pengelasan diberi pemanasan mula (preheat) dan setelah pengelasan diberikan postheat atau post weld heat treatmen (PWHT) untuk memperlambat laju pendinginan maka dilakukan penelitian dari hasil pengelasan besi cor kelabu atau besi cor FC menggunakan elektroda paduan nikel rendah dengan preheat 600°C dan PWHT tujuannya adalah menemukan metode preheat dan PWHT yang baik, dari hasil penelitian didapat, semua spesimen A mengalami retakan kawah, terdapat nilai kekerasan yang kurang seragam pada spesimen A yaitu sebesar 114.75 HRB yang dimana seharusnya kekerasannya melebihi kekerasan pada HAZ spesimen B yaitu 118.75HRB .Nilai kekersan tertinggi di capai pada spesimen A pada inti las sebesar 120.5HRB Semakin lama waktu waktu PWHT akan mengurangi perubanan sudut hasil lasan dan semakin bertumbuh struktur ferit mengakibatkan berkurang nilai kekerasannya.
Looking Toward Restorative Justice for Redlined Communities Displaced by Eco-Gentrification
Authors: Kang Helen
Published: May 2021

MJEAL chose to publish Helen Kang’s piece, Looking Toward Restorative Justice for Redlined Communities Displaced by Eco-Gentrification, because it offers a unique analytic approach for analyzing the roots of environmental racism and the appropriate tools to help rectify it. She offers an argument for why restorative justice needs to be the framework and explains how we can accomplish this in the context of a whole government solution. MJEAL is excited to offer what will be an influential approach for environmental restorative justice to the broader activist and academic community.
Implementación y uso clínico de la radioterapia adaptativa. Informe del grupo de trabajo de radioterapia adaptativa de la Sociedad Española de Física Médica (SEFM)
Authors: García-Mollá Rafael , Sánchez Rubio Patricia , Bonaque Alandí Jorge , Carrasco Herrera María Auxiliadora , Lliso Valverde Françoise
Published: May 2021

La radioterapia adaptativa (Adaptive Radiation Therapy, ART) se puede definir como la modificación del plan de tratamiento administrado a un paciente durante el curso de la radioterapia para tener en cuenta los cambios en la anatomía.

La aplicación de ART supone un cambio en el proceso radioterápico que implica el uso de numerosos recursos adicionales, no estando implementada de forma general. Así, aun tratándose de una idea introducida hace más de 20 años, todavía a fecha de hoy son objeto de estudio muchos de los aspectos que definen la ART: la decisión de proceder a la nueva planificación del tratamiento, el momento óptimo para adaptar el plan, el umbral dosimétrico o anatómico que define la necesidad de adaptar y la identificación de los pacientes que realmente se beneficiarían de la adaptación del tratamiento.

Este informe del Grupo de Trabajo sobre ART de la Sociedad Española de Física Médica (SEFM) tiene como objetivo describir los principios de esta técnica, así como los elementos necesarios para su implementación.

Se exponen las dos estrategias principales atendiendo al momento de su aplicación: offline, para actuar ante los cambios progresivos que se observan durante el tratamiento, y online, para mitigar los cambios aleatorios.

Se revisa el estado actual de ART aplicado a la práctica clínica para diferentes localizaciones anatómicas.

Se describen algunos de los instrumentos clave para su implementación: los algoritmos de registro deformable (Deformable Image Registration, DIR), exponiendo las principales métricas de similitud, los métodos de optimización de la similitud, y los modelos de deformación utilizados, analizando las características de los algoritmos de los softwares más utilizados.

Además, dada la importancia que tiene conocer la incertidumbre adicional que introduce el uso de los algoritmos DIR (sobre todo cuando se utilizan para deformar la matriz de dosis absorbida) se dedica un apartado a la validación de estos algoritmos, incluyendo los resultados para los principales softwares comerciales disponibles actualmente.

Por último, se presentan unas recomendaciones a la hora de aplicar ART en la práctica clínica.
Tradition in the Novels of Anwar Ridhwan and Putu Wijaya
Authors:   Universiti Kebangsaan Malaysia, Shafei Mawar
Published: May 2021

This paper is the result of a comparative study carried out on the novels of Anwar Ridhwan and Putu Wijaya, writers who represent Malaysian and Indonesian authorship respectively. This study focuses on the inclination of both writers to dignify “tradition” in their work. What is meant by the framework of “tradition” is that both writers source their materials mainly from traditional texts in order to construct the structure of the novels which is the object of our attention. Specifically, the novel Hari-hari Terakhir Seorang Seniman (Anwar Ridhwan) makes references to the romance Si Gembang or Teluk Bidung Kota Lama while the novel Perang (Putu Wijaya), to the classical text the Mahabharata. Aside that, “tradition” as is presented by the writers in the novels under study, has been identified to take account of the concept of tradition which is the authorship ideology of both writers – Anwar Ridhwan with his concept kampung halaman Melayu (Malay hometown), Putu Wijaya with his concept desa-kala-patra (found in the Balinese tradition). These “traditions” are anchored in their experimental works which apear to be defying convention; a predilection that clearly is in line with the authorial rhythm of these outstanding writers. The study conducted employs the intertextual framework as well as dialogism advanced by Mikhail Bakhtin and Julia Kristeva; a framework for observing authorship processes that is directed towards the effectiveness of creation theory. The study finds that both writers conform to the cultural traditions of their people, are clearly appreciative of these traditions, perfom meaning inversions in the novels examined (the hypertext) which are not evident in the pre-existing text (the hypotext). Keywords: Anwar Ridhwan, Putu Wijaya, the novel Hari-hari Terakhir Seorang Seniman, the novel Perang, intertextuality, tradition.
An Ecocritical Reading of Selected Poems of Muhammad Haji Salleh
Authors:   Universiti Kebangsaan Malaysia, Ahmed Hamoud Yahya , Hashim Ruzy Suliza
Published: May 2021

Ecocriticism is concerned with the relationship between literature and environment or how the relationships between humans and their physical world are reflected in literature. In this paper, we attempt to analyse selected poems of Muhammad Haji Salleh using some concepts from ecocriticism as an analytical lens. The premise of this paper is based on the poet’s symbiotic relationship which has become a significant feature of his work. Using six of his nature poems to exhibit Muhammad’s idea of mutual relationship between the human world and the natural world of environment, we show the poet’s concern about the slightest interference of human beings into the world of nature which results in the disruption of human-nature relationship. Muhammad Haji Salleh does not limit himself to presenting the brighter and darker side of nature, rather he has gone a step further to reveal the very concept of ecosystem and reflect the blossoming of ecological consciousness in modern Malaysian society. This approach of reading Muhammad Haji Salleh exhibits the current interest in the environment and the ways in which it has to be treated with respect and love. By explicating the intrinsic features of nature in his selected poems, we can inculcate environmental awareness and inspire ecological consciousness among people in Malaysia and elsewhere in the world. Keywords: Ecocriticism, ecosystem, interrelationship, ecological consciousness, poetry and Muhammad Haji Salleh
Physics on Edge
Authors: Ellis George
Published: May 2021

George Ellis examines various theories of the multiverse, considers some of the arguments contra, and concludes that the absence of experimental proof is a real deal-breaker—and should remain so.
The Politics of Pity
Authors: Horwitz Robert , Streeck Wolfgang
Published: May 2021

The starkly uneven consequences of globalized creative destruction have ravaged national working classes. In response, they have revolted politically—but to the right, not to the left.
On Gödel’s Ontological Argument
Authors: Metcalf Thomas , Oppy Graham
Published: May 2021

How might a theist defend Gödelian modal ontological-arguments? Thomas Metcalfe details how this might be done, before offering the most dissuasive objections to such arguments.
Non-Empirical But Scientific
Authors: Dawid Richard , Ellis George
Published: May 2021

We are not free to choose the world we live in. We may prefer living in a world where physical theories are empirically fully testable within a short time. But it so happens that this is not the case.
Consider the Alternative
Authors: Suddendorf Thomas
Published: May 2021

Humans can travel mentally in time and imagine their remote future lives. The unwelcome prospect of suffering the “lamentable imbecility” of old age drives research aimed at slowing age-related decline.
A Newtonian Perspective
Authors: Ajemian Robert , Bizzi Emilio
Published: May 2021

If speech is one possible sensorimotor instantiation of a more universal mental propensity, then why throughout human history has the spoken word been preferred to, say, the signed word?
On Tool Grammar
Authors: Smith Larry
Published: May 2021

“What is the Chomskyan Notion of Creativity,” Larry Smith asks, “and how does it differ from other possible conceptions such as our notion of Tool Grammar Creativity?”
Schisantherin-A Alleviates Lipopolysaccharide-Induced Inflammation and Apoptosis in WI-38 Cells
Authors: Liu Shan , Lu Banghao
Published: May 2021

Schisantherin A, a dibenzocyclooctadiene lignan, isolated from the fruit of Schisandra sphenanthera has been widely used to exert anti-inflammatory or antioxidant activities in sepsis associated acute kidney injury and lipopolysaccharide associated acute respiratory distress syndrome. However, the protective effects of Schisantherin A against acute pneumonia in lipopolysaccharide-induced WI-38 remain to be explored. To this end, WI-38 cells were treated with lipopolysaccharide to establish an acute pneumonia model and evaluate the effect of Schisantherin A. The data show an increase in apoptosis and decrease in cell viability by lipopolysaccharide treatment that was reversed by Schisantherin A. Also, Schisantherin A dose dependently attenuated lipopolysaccharide-induced increase in proinflammatory cytokines. Lastly, expression of p65, p38 proteins, extracellular-signal-regulated kinase, and Jun N-terminal protein kinase phosphorylation were upregulated by lipopolysaccharide and decreased by Schisantherin A. In conclusion, Schisantherin A demonstrates anti-inflammatory and antiapoptotic roles in lipopolysaccharide induced WI-38 cells through inactivation of nuclear factor-kappa B/mitogen activated protein kinase pathway.
Asiaticoside Regulates Toll-Like Receptor 4/Nuclear Factor-Kappa B Signaling Pathway to Relieve Lipopolysccharide-Induced Inflammation and Apoptosis in ATDC5 Cells
Authors: Gao Lin , Yang Ming , Cai San , Gao Liping , Gui Chunfeng , Zhang Qi
Published: May 2021

Osteoarthritis is a progressive joint disease characterized by degeneration and destruction of articular cartilage. The incidence of osteoarthritis has increased steadily over the years leading to more than 50% in people over the age of 65. Due to associated side effects of prevailing therapeutics, better drugs are needed for osteoarthritis management. Asiaticoside is a bioactive component isolated from the medicinal plant Centella asiatica. It has been reported to possess neuroprotective, antiulcer, wound healing, anti-inflammatory, antioxidative, and other pharmacological properties. However, the potential of asiaticoside in the management of osteoarthritis remains to be explored. To this end, we examined the effect of asiaticoside on lipopolysaccharides induced inflammatory injury and apoptosis of chondrocytes. The results show that asiaticoside promotes viability and decrease in apoptosis of ATDC5 cells through decreased production of proinflammatory cytokines and the regulation of toll-like receptor 4/nuclear factor-kappa b signaling pathway. In summary, our results provide the evidence that asiaticoside could serve as a promising therapeutic drug for osteoarthritis treatment.
Morin Provides Neuroprotection in a Model of Cerebral Infarction Via Nrf-2 Signaling Pathway
Authors: Mu Lirong , Hui Chaojie , Li Wenhui
Published: May 2021

Cerebral infarction, also known as ischemic stroke, is a disorder of blood supply in the local brain tissue and the second leading cause of death worldwide. It is important to develop effective drugs to treat cerebral infarction. Morin (3,5,7,2′, 4′-pentahydroxyflavone) is a bioactive flavonol that has multiple medicinal properties including antioxidant, anti-inflammatory, anti-invasive, antitumor, and antiangiogenic properties. However, its potential effect on ischemic stroke as a potent neuroprotective and cardioprotective agent remains unknown. In this study, we constructed a rat model of cerebral infarction and shown morin to be neuroprotective in this model. Additionally, morin inhibited nerve cell apoptosis and cerebral infarction induced oxidative stress in brain tissue. Our data further confirmed that morin provides neuroprotection in cerebral infarction via upregulation of the downstream proteins of Nrf2 pathway. We therefore suggest morin as a promising therapeutic drug for the treatment of cerebral infarction.
Jak se upřesňuje zákon o veřejných zakázkách část 2
Authors: Marek Karel
Published: May 2021

In the recent past, we discussed the legal regulation of public procurement in the Czech Republic. As an amendment to the Act on Procurement the European Commission. By submitting a draft amandment to the Act, Czech republic will fulfill the task of the European Commision. Minor adjustments may be made to the legislative process. However, today ́s treatise can contribute to the preparation of the addresses of the regulation (including the preparation of their internal regulations and procedures).
Upozornenie prokurátora ako jeden z prostriedkov prokurátorského dozoru v oblasti verejnej správy
Authors: Felčan Miroslav , Kadáček Michal
Published: May 2021

The aim of the contribution is to examine and analyse prosecutor’s notice by which prosecutor performs supervision of compliance with the law and generally binding legal regulations by public administration. The contribution’s aim is not just a description of current legal state but in addition of that the authors try to make reference to problem issues of the legislation de lege lata as well as several unclear theoretical and application questions whose analysis and answering is part of the content of this contribution. In connection with processed issues the authors off er certain recommendations and propositions which could pro futuro fi nd its application not only in the legal regulation of the prosecutor’s notice, but also in the case of supervision of compliance with the legitimacy in public administration.
AN EFFICIENT NUMERICAL APPROACH FOR SOLVING ABEL’S INTEGRAL EQUATIONS BY USING MODIFIED TAYLOR WAVELETS
Authors: Kumar A. , Verma S. R.
Published: May 2021

In this paper, a modified Taylor wavelet method (MTWM) is developed for numerical solutions of various types of Abel's integral equations. This method is based on the modified Taylor wavelet (MTW) approximation. The purpose behind using the MTW approximation is to transform the introduction problems into an equivalent set of algebraic equations. To check the accuracy and applicability of the proposed method, some examples have been solved and compared with other existing methods.
Würfel mit digitalen Medien – Wo führt das noch hin? Ein tätigkeitstheoretischer Blick auf Würfelhandlungen
Authors: Florian Lena , Etzold Heiko
Published: May 2021

Dieser Beitrag wird ein Spagat – zwischen alt und neu, zwischen virtuell und real, zwischen Theorie und Praxis. Als Fundament dieses Beitrags dienen Holzwürfel, die zu kleinen Bauwerken werden und so ein bedeutsamer Bestandteil des Geometrieunterrichts sind. Kontakt zwischen Günter Krauthausen und uns entstand im Rahmen des Verbundprojektes "Digitales Lernen Grundschule", das die Deutsche Telekom Stiftung von 2017 bis 2019 für sechs Hochschulen förderte – unter anderem auch die Universitäten in Hamburg und Potsdam. Dabei entstand (in Potsdam durch Heiko Etzold) die iPad-App "Klötzchen", für die (u. a. in Hamburg durch Günter Krauthausen und Alexandra Pilgrim) vielfältige Unterrichtsszenarien entwickelt wurden. Die App wiederum bot (Lena Florian in Potsdam) Anlass, eine Virtual-Reality-Umgebung zu Würfelbauwerken zu entwickeln. Da stehen sie nun: Die echten Holzwürfel, die Klötzchen in der iPad-App und die Kuben im virtuellen Raum. Und stehen diese nebeneinander? Werden virtuelle Würfel bald dafür sorgen, dass wir uns keine Splitter mehr einziehen? Ist es von Bedeutung, ob ich nun raues Holz, einen glatten Bild-schirm oder einen VR-Controller mit vielen Knöpfen anfasse, um meisterhafte Würfelbauwerke zu erschaffen? Derartigen Fragen möchten wir in unserem Beitrag auf den Grund gehen. Wir betrachten vor allem die Handlungen, die mit Würfeln beim Bauen in den verschiedenen Medien möglich und sinnvoll sind. Wir untersuchen, inwieweit dies geometrisches Verständnis fördern kann. Und nicht zuletzt wollen wir Lehrerinnen und Lehrern Anregungen geben, wie mathematisch wünschenswerte Handlungen von Schülerinnen und Schülern im jeweiligen Medium aufgebaut, diagnostiziert und unterstützt werden können und damit ein vielfältiger, differenzierender Unterricht ermöglicht werden kann.
Sensibilisierungsübungen zur "Sprache im Mathematikunterricht" – Thematisierung kommunikativer und kognitiver sprachlicher Hürden durch Reflexion eigener sprachlicher Ressourcen
Authors: Kühme Nora , Leufer Nikola , Stein Martin
Published: May 2021

Im Zusammenhang mit der Thematisierung von Mehrsprachigkeit im Unterricht (Stichwort "DaZ") lässt sich in Fortbildungen und Ausbildungsmodulen derzeit eine häufige Nutzung von "Reflexionen" zur Sprachproblematik beobachten – insbesondere als Einstiegsszenario. Mathematikdidaktische Module stellen hier keine Ausnahme dar, im Gegenteil: Gerade für den vermeintlich "spracharmen" Mathematikunterricht schaffen solche Sensibilisierungsübungen ein Problembewusstsein und haben insofern eine wichtige fortbildungsdidaktische Funktion. Richtig eingesetzt motivieren sie davon ausgehend jedoch auch inhaltliche Anknüpfungspunkte z. B. zur Thematisierung der Rolle von Sprache im Mathematikunterricht und von konzeptuellen Ansätzen, mit den sprachlichen Anforderungen umzugehen. Um Sensibilisierungsübungen optimal zu nutzen, sind sowohl inhaltliche Passung der Übung, methodische Eignung als auch Kriterien für eine gelungene Reflexionsphase in der Planung abzuklären. Im Kontext "Sprache und Mathematikunterricht" fällt auf, dass viele Sensibilisierungsübungen vorwiegend auf die kommunikative Funktion von Sprache (Sprache zur "Verständigung", vgl. Klix 1995, nach Maier & Schweiger 1999, S. 11) abstellen, während die kognitive Funktion von Sprache (Sprache zum „Erkenntnisgewinn“, vgl. ebd.) sich offensichtlich schwieriger auf diese Weise "erfahren" lässt. Im Folgenden werden Sensibilisierungsübungen aus einem Seminar im LA-Masterstudiengang zum Thema "Sprache im Mathematikunterricht" an der Universität Münster zu beiden Funktionen vorgestellt und Gelingensbedingungen diskutiert.
Forschermittel im Arithmetikunterricht der Primarstufe
Authors: Selter Christoph
Published: May 2021

"Es wäre „eine Illusion zu glauben oder zu hoffen, dass es nur einer entsprechend ›guten Aufgabe‹ oder Fragestellung bedürfe, und schon würde sich aus dieser Sache heraus natürliche Differenzierung naturgemäß ereignen." (Krauthausen, 2018, S. 299) Der vorliegende Beitrag beschreibt am Beispiel einer Unterrichtsreihe zu den Entdeckerpäckchen, wie Forschermittel die Lernenden im Sinne der Natürlichen Differenzierung dabei unterstützen können, Entdeckungen zu machen, zu beschreiben und zu begründen.
DISCOURSE, COGNITION AND SOCIETY: CRITICAL DISCOURSE ANALYSIS OF THE STORY THAT MUST NOT BE TOLD
Authors:   Assistant Professor, Department of English, St. Joseph’s College of Arts and Science for Women, Mookandapalli, Hosur, Krishnagiri Dt, Tamil Nadu, INDIA. PIN 635126, L Jenniffer , Lavanya Dr K ,   Assistant Professor, Department of English, St. Joseph’s College of Arts and Science for Women, Mookandapalli, Hosur, Krishnagiri Dt, Tamil Nadu, INDIA. PIN 635126
Published: May 2021

The paper presents a critical discourse analysis of Kavery Nambisan’s The Story That Must Not Be Told based on Teun A.van Dijk’s discourse-cognition-society triangle approach. Kavery Nambisan, the South Indian writer is prominently known for her social themes and in that way, the novel explicates the abyss between haves and have-nots. Though the elite residents of Vaibhav apartments and the local workers of the slum Sitara are interdependent, the dominant’s root hatred for the vulnerable slum dwellers is highlighted. The emotions and opinions of the two different worlds divided by a single wall carry poignant episodes of the lifestyle of the elite as well as the existence of the poor with less basic needs. The discourse structures of the elite exhibit the power in controlling the slum dwellers, where the story further moves to the demolition of the slum and migration. The personal context of Simon to support the slum receives huge opposition from the apartment residents. Van Dijk brings forth the connection among discourse, cognition and society stating that cognitive perceptions influence the interpretation of discourse elements built within the social structures. Similarly, the paper attempts to portray how Simon, the protagonist’s motive to help the slum people failed due to the power of the dominion, class conflicts and varied perspectives.
Quartic Non-Polynomial Spline Method for Singularly Perturbed Differential-difference Equation with Two Parameters
Authors: Kusi Gemadi Roba , Bullo Tesfaye Aga , Duressa Gemechis File
Published: May 2021

Quartic non-polynomial spline method is presented to solve the singularly perturbed differential-difference equation containing two parameters. The considered equation is transformed into an asymptotical equivalent differential equation, and the derivatives are replaced finite difference approximation using the quartic non-polynomial spline method. The convergence analysis of the method has been established. Numerical experimentation is carried out on model examples, and the results are presented both in tables and graphs. Furthermore, the present method gives a more accurate solution than some existing methods reported in the literature.
NEMESIS: Exoplanet Transit Survey of Nearby M-dwarfs in TESS FFIs. I.
Authors: Feliz Dax L. , Plavchan Peter , Bianco Samantha N. , Jimenez Mary , Collins Kevin I. , Villarreal Alvarado Bryan , Stassun Keivan G.
Published: May 2021

In this work, we present an analysis of 33,054 M-dwarf stars, located within 100 parsecs, via the Transiting Exoplanet Survey Satellite (TESS) full-frame images (FFIs) of observed sectors 1–5. We present a new pipeline called NEMESIS, developed to extract detrended photometry, and to perform transit searches of single-sector data in TESS FFIs. As many M-dwarfs are faint, and are not observed with a two-minute cadence by TESS, FFI transit surveys can provide an empirical validation of how many planets are missed, using the 30-minute cadence data. In this work, we detect 183 threshold crossing events, and present 29 candidate planets for sectors 1–5, 24 of which are new detections. Our sample contains orbital periods ranging from 1.25 to 6.84 days, and planetary radii from 1.26 to 5.31 R
⊕. With the addition of our new planet candidate detections, along with detections previously observed in sectors 1–5, we calculate an integrated occurrence rate of 2.49 ± 1.58 planets per star, for the period range ∈ [1, 9] days, and planet radius range ∈ [0.5,11] R
⊕. We project an estimated yield of 122 ± 11 transit detections of nearby M-dwarfs. Of our new candidates, 23 have signal-to-noise ratios >7, transmission spectroscopy metrics >38, and emission spectroscopy metrics >10. We present all of our data products for our planet candidates via the Filtergraph data visualization service, located at https://filtergraph.com/NEMESIS.
Accurate Identification of Galaxy Mergers with Stellar Kinematics
Authors: Nevin R. , Blecha L. , Comerford J. , Greene J. E. , Law D. R. , Stark D. V. , Westfall K. B. , Vazquez-Mata J. A. , Smethurst R. , Argudo-Fernández M. , Brownstein J. R. , Drory N.
Published: May 2021

To determine the importance of merging galaxies to galaxy evolution, it is necessary to design classification tools that can identify the different types and stages of merging galaxies. Previously, using GADGET-3/SUNRISE simulations of merging galaxies and linear discriminant analysis (LDA), we created an accurate merging galaxy classifier based on imaging predictors. Here, we develop a complementary tool, based on stellar kinematic predictors, derived from the same simulation suite. We design mock stellar velocity and velocity dispersion maps to mimic the specifications of the Mapping Nearby Galaxies at Apache Point (MaNGA) integral field spectroscopy (IFS) survey, and utilize an LDA to create a classification, based on a linear combination of 11 kinematic predictors. The classification varies significantly with mass ratio; the major (minor) merger classifications have a mean statistical accuracy of 80% (70%), a precision of 90% (85%), and a recall of 75% (60%). The major mergers are best identified by predictors that trace global kinematic features, while the minor mergers rely on local features that trace a secondary stellar component. While the kinematic classification is less accurate than the imaging classification, the kinematic predictors are better at identifying post-coalescence mergers. A combined imaging + kinematic classification has the potential to reveal more complete merger samples from imaging and IFS surveys such as MaNGA. We note that since the suite of simulations used to train the classifier covers a limited range of galaxy properties (i.e., the galaxies are of intermediate mass, and disk-dominated), the results may not be applicable to all MaNGA galaxies.
A Self-consistent, Time-dependent Treatment of Dynamical Friction: New Insights Regarding Core Stalling and Dynamical Buoyancy
Authors: Banik Uddipan , van den Bosch Frank C.
Published: May 2021

Dynamical friction is typically regarded as a secular process, in which the subject (“perturber”) evolves very slowly (secular approximation) and has been introduced to the host over a long time (adiabatic approximation). These assumptions imply that dynamical friction arises from the LBK torque with nonzero contribution only from purely resonant orbits. However, dynamical friction is only of astrophysical interest if its timescale is shorter than the age of the universe. In this paper we therefore relax the adiabatic and secular approximations. We first derive a generalized LBK torque, which reduces to the LBK torque in the adiabatic limit, and show that it gives rise to transient oscillations due to nonresonant orbits that slowly damp out, giving way to the LBK torque. This is analogous to how a forced, damped oscillator undergoes transients before settling to a steady state, except that here the damping is due to phase mixing rather than dissipation. Next, we present a self-consistent treatment that properly accounts for time dependence of the perturber potential and circular frequency (memory effect), which we use to examine orbital decay in a cored galaxy. We find that the memory effect results in a phase of accelerated, super-Chandrasekhar friction before the perturber stalls at a critical radius, R
crit, in the core (core stalling). Inside R
crit the torque flips sign, giving rise to dynamical buoyancy, which counteracts friction and causes the perturber to stall. This phenomenology is consistent with N-body simulations, but has thus far eluded proper explanation.
La psychopathologie infantile pendant la première année de vie et son retour à l’âge adulte
Authors: Rosenfeld David
Published: May 2021

Le matériel clinique rapporté dans cet article tente de démontrer comment les pertes et les traumatismes précoces de la petite enfance et de l’enfance réapparaissent dans la vie adulte et s’expriment à travers le corps. L’importance d’une compréhension théorique solide des processus autistiques et psychosomatiques est essentielle pour travailler ce niveau de troubles. Une attention soutenue aux mouvements délicats du patient dans les séances, jour après jour, et plus spécifiquement d’un moment à l’autre dans les séances ne doit pas manquer pour tenter de découvrir ce qui est encore inconnu du patient. Les séparations concrètes sont souvent la répétition d’un traumatisme ou d’une expression corporels. Il faut valoriser la créativité de l’analyste pour recevoir des formes de communication inhabituelles (c’est-à-dire des poèmes, des chansons) en tant que moyens significatifs d’expression de la souffrance psychique.
Fonctionnement limite à l’adolescence et actualité des enjeux
Authors: Loisel Yoann , Corcos Maurice , Shadili Gérard
Published: May 2021

En particulier en ce qui concerne les symptômes de l’adolescent, la notion d’état limite a confirmé l’intérêt d’une attention dimensionnelle et développementale envers différents modes de fonctionnement psychique plutôt qu’une rigide approche catégorielle. À l’intérieur de ce cadre sémiologique, il en ressort une redéfinition de la notion de comorbidité, notamment pour les troubles post-traumatiques. La récurrence psycho-traumatique donne à penser que ce serait, actuellement, moins la perte d’une triangularisation rigide des conflits que l’impact de stimulations sensorielles, prématurées vis-à-vis des capacités de l’individu, qui rendrait compte de l’augmentation du diagnostic. Ce constat renouvelle l’intérêt thérapeutique d’un soin institutionnel avec médiations très ajustées, notamment corporelles.
Un quatrième axe de la filiation : la filiation narrative
Authors: Golse Bernard , Moro Marie Rose
Published: May 2021

À partir de leur expérience dans la clinique de l’adoption internationale, les auteurs proposent de considérer la filiation de tous les enfants quelle que soit la situation dans laquelle ils naissent et se développent dans ses axes biologique, psychique, symbolique (ou légal), auxquels ils rajoutent un axe narratif jusque-là non conceptualisé. Ils en proposent une définition psychanalytique et phénoménologique et l’illustrent par des récits tirés de la vie psychique des bébés et des interactions précoces telles qu’elles se déroulent entre les bébés et ceux qui prennent soin d’eux et des fragments de psychothérapies en situation d’adoption internationale.
Les personnes sans domicile vieillissantes face aux dispositifs d’hébergement sociaux et médicaux
Authors: Coulomb Laureline
Published: May 2021

Cet article se fonde sur l’analyse ethnographique de parcours de personnes sans domicile vieillissantes pour interroger leurs caractéristiques spécifiques qui posent problème dans leur accès à un hébergement pérenne. Dans la rue, on retrouve des personnes âgées ayant un long parcours sans domicile, tout comme des individus nouvellement confrontés à la survie sans domicile après la perte soudaine de leur logement, ce qui est à la fois le reflet du vieillissement des personnes sans domicile et de la paupérisation extrême des personnes âgées. Ces parcours montrent que les hébergements d’urgence et d’insertion sont incapables de prendre en charge les aînés, et que les hébergements pour personnes âgées ne sont pas adaptés aux personnes les plus vulnérables.
Le sans-abrisme à l’âge de la vieillesse
Authors: Grenier Amanda , Sussman Tamara , Cadenza Academic translations
Published: May 2021

Le sans-abrisme à un âge avancé est en augmentation dans divers contextes internationaux. Bien que les médias et la littérature académique commencent à s’emparer de ce phénomène, les personnes âgées sont confrontées à un paradoxe : « hypervisibles » dans les cadres institutionnels et les lieux publics, tels que la rue et les refuges d’urgence, elles bénéficient cependant de peu de reconnaissance au sein des politiques publiques et des stratégies de lutte contre le sans-abrisme. S’inspirant des découvertes réalisées lors d’un projet de recherche ethnographique à Montréal (Québec), cet article engage une discussion sur l’exclusion sociale. Il s’ouvre sur la citation qui a suscité cet intérêt particulier, puis présente le contexte dans lequel est étudié le sans-abrisme des personnes vieillissantes. Il aborde ensuite les cadres conceptuels existants de l’exclusion sociale en gérontologie sociale et évalue la pertinence de ceux-ci pour la compréhension de ce type de sans-abrisme. Pour ce faire, il mobilise des domaines proposés par Scharf, Phillipson et Smith (2005), Grenier et Guberman (2009) et Walsh, Scharf et Keating (2017), ainsi que 40 entretiens qualitatifs menés lors d’une étude ethnographique CRSH de quatre ans portant sur le sans-abrisme. Cet article démontre en quoi le sans-abrisme des personnes vieillissantes est, comme l’a exprimé un participant et comme cela est manifeste dans un grand nombre de ces entretiens, une expérience d’exclusion sociale supplémentaire.
From Sully to Nightingale: Critical Thinking Through Esthetic Learning
Authors: Wiles Brenda , Enslein Terri
Published: May 2021

Background:

Nursing faculty continually seek new teaching strategies to promote prelicensure nursing students' critical thinking. Students construct new knowledge through experience. Esthetic learning methodologies involve gaining knowledge and insight through emotive, firsthand experiences. The esthetic experience of watching a movie, coupled with reflective journaling, has been used with health care students to promote learning. However, little is documented in the literature on its use with nursing students or its influence on the formulation of critical thinking skills.

Method:

This descriptive qualitative study explored the impact of watching the movie,
Sully
, followed by structured reflective journaling on critical thinking of prelicensure nursing students.

Results:

Themes were identified which demonstrated students' insights into the components of critical thinking and expert thinking.

Conclusion:

Esthetic learning is a promising teaching approach that addresses multiple ways of knowing, thereby enhancing students' learning about critical thinking in a prelicensure education program.

[
J Nurs Educ
. 2021;60(5):281–285.]
Experiential Learning for Undergraduate Nursing Students: Engagement With a University Health Center
Authors: Kelly Sarah , Duffy Mary Beth , Ruiz Patricia
Published: May 2021

Background:

Finding the right method to influence student engagement with research can provide a unique opportunity to positively affect students' perceptions of nursing research. Therefore, the purpose of this educational program was to implement an experiential learning opportunity for junior-year nursing students.

Method:

Faculty developed a program that focused on the development of a research study in association with the university health center. A retrospective chart review that focused on various social behaviors was identified as an appropriate research project.

Results:

Students who were enrolled in the course were divided into five groups. Each student reviewed and collected data from 18 charts. Data collection and entry occurred concurrently.

Conclusion:

Students acknowledged they learned about the research process and enjoyed the experience. This program enhanced students' experiences with research.

[
J Nurs Educ
. 2021;60(5):289–292.]

.
Finite‐Sample Optimal Estimation and Inference on Average Treatment Effects Under Unconfoundedness
Authors: Armstrong Timothy B. , Kolesár Michal
Published: May 2021

We consider estimation and inference on average treatment effects under unconfoundedness conditional on the realizations of the treatment variable and covariates. Given nonparametric smoothness and/or shape restrictions on the conditional mean of the outcome variable, we derive estimators and confidence intervals (CIs) that are optimal in finite samples when the regression errors are normal with known variance. In contrast to conventional CIs, our CIs use a larger critical value that explicitly takes into account the potential bias of the estimator. When the error distribution is unknown, feasible versions of our CIs are valid asymptotically, even when

n

‐inference is not possible due to lack of overlap, or low smoothness of the conditional mean. We also derive the minimum smoothness conditions on the conditional mean that are necessary for

n

‐inference. When the conditional mean is restricted to be Lipschitz with a large enough bound on the Lipschitz constant, the optimal estimator reduces to a matching estimator with the number of matches set to one. We illustrate our methods in an application to the National Supported Work Demonstration.
General Equilibrium Oligopoly and Ownership Structure
Authors: Azar José , Vives Xavier
Published: May 2021

We develop a tractable general equilibrium framework in which firms are large and have market power with respect to both products and labor, and in which a firm's decisions are affected by its ownership structure. We characterize the Cournot–Walras equilibrium of an economy where each firm maximizes a share‐weighted average of shareholder utilities—rendering the equilibrium independent of price normalization. In a one‐sector economy, if returns to scale are non‐increasing, then an increase in “effective” market concentration (which accounts for common ownership) leads to declines in employment, real wages, and the labor share. Yet when there are multiple sectors, due to an intersectoral pecuniary externality, an increase in common ownership could stimulate the economy when the elasticity of labor supply is high relative to the elasticity of substitution in product markets. We characterize for which ownership structures the monopolistically competitive limit or an oligopolistic one is attained as the number of sectors in the economy increases. When firms have heterogeneous constant returns to scale technologies, we find that an increase in common ownership leads to markets that are more concentrated.
Equilibrium in misspecified Markov decision processes
Authors: Esponda Ignacio , Pouzo Demian
Published: May 2021

We provide an equilibrium framework for modeling the behavior of an agent who holds a simplified view of a dynamic optimization problem. The agent faces a Markov decision process, where a transition probability function determines the evolution of a state variable as a function of the previous state and the agent's action. The agent is uncertain about the true transition function and has a prior over a set of possible transition functions; this set reflects the agent's (possibly simplified) view of her environment and may not contain the true function. We define an equilibrium concept and provide conditions under which it characterizes steady‐state behavior when the agent updates her beliefs using Bayes' rule.
On selecting the right agent
Authors: Clippel Geoffroy , Eliaz Kfir , Fershtman Daniel , Rozen Kareen
Published: May 2021

Each period, a principal must assign one of two agents to a new task. Each agent privately learns whether he is qualified for the task. An agent wishes to be chosen independently of qualification and chooses whether to apply for the task. The principal wishes to appoint the most qualified agent and chooses which agent to assign as a function of the public history of profits. We fully characterize when the principal's first‐best payoff is attainable in equilibrium and identify a simple strategy profile achieving this first‐best whenever feasible. Additionally, we provide a partial characterization of the case with many agents and discuss how our analysis extends to other variations of the game.
Kralj v kraljestvu zla: lik Kreonta v dramah Dominika Smoleta in Milana Uhdeta
Authors: Jensterle Doležal Alenka
Published: May 2021

V razpravi primerjamo dve drami: poetično filozofsko dramo Antigona Dominika Smoleta (1929–1992), ki je leta 1960 imela premiero na Odru 57 in je usodno zaznamovala razvoj slovenske drame, in satirično igro Děvka z města Théby (Prostitutka iz mesta Teb) češkega dramatika Milana Uhdeta (roj. 1936) iz leta 1967, ki so jo samo kratek čas izvajali v praškem in brnskem gledališču, potem pa so jo zaradi ruskega vdora na Češkoslovaško in totalitarnega režima prepovedali. Med dramama ni realne povezave in ne moremo govoriti o možnih vplivih, razkrivajo pa se neverjetno podobna medbesedilna izhodišča in idejne povezave: obe se motivno in tematsko navezujeta na Sofoklovo in Anouilhovo Antigono (ta je imela na Češkem po vojni še večji uspeh kot v Sloveniji). Oba dramatika filozofsko izhajata iz eksistencializma in absurdne dramatike (prav te oznake se pojavljajo tudi pri poznejših analizah njunih dram). Češki filozof Patočka je izpostavil tezo, da v 20. stoletju dominira problem Kreonta in tudi v obravnavanih dramah Kreon postaja osrednji protagonist oz. antagonist. V analizi se osredotočamo na lik Kreonta, ki v obeh dramah postaja glavni »igralec« v dramskem dogajanju in tudi osrednja figura, ki se giblje na območju zla, kar razkriva njegov diskurz in dinamika odnosov z drugimi postavami. Njegova osebnost se v dramskih situacijah pogosto oblikuje v nasprotjih in njegova dejanja izražajo notranji konflikt. Kreon je v obeh dramah zanimiv tudi zaradi političnih konotacij: njegov problem lahko razlagamo kot tipičen problem socialističnega oblastnika.