bluuebunny/crossref_metadata_2025 huggingface dataset:
Taxpayers' Rights
Authors: Bazó Andres
Published: October 2021

This Article addresses the challenges, trends, and evolution of Taxpayers’ Rights both in the Unites States and in Latin America, particularly by comparing the U.S. Taxpayers’ Bill of Rights and the recently adopted Taxpayers’ Rights Letter from the Latin American Institute of Tax Law (ILADT). Furthermore, although in Latin American this is a relatively more recent topic, nonetheless, in the United States it is not, and the Article also addresses the evolution of taxpayers’ rights both from the point of view of the U.S. Constitution as well as iconic decisions from the U.S. Supreme Court.
Kapitalmarktkommunikation durch den Aufsichtsrat einer Aktiengesellschaft
Authors: Knorr Elisa Sophia
Published: October 2021

Contrary to what the inclusion of a suggestion in the “DCGK” regarding investor dialogue by the chairman of the supervisory board and its widespread use in practice would suggest, the legal framework for capital market communication by the supervisory board has not yet been clarified. The author therefore examines the admissibility and limits of capital market communication by the supervisory board by analysing German stock corporation and capital market law. In particular, it is shown that topic-specific communication competences result from the dualistic competence structure as annex competences and that narrowing the communication responsibilities to the chairman contradicts the nature of the supervisory board as a collegial body.
Kinder zuerst
Authors: Heinze Achim Dirk
Published: October 2021

"Children First" deals with the current state of our school education. The book explains correct learning strategies, warns against exaggerated hopes of digitalisation and starts where all education begins: with the children!

The focus lies on learning and brain development, social and psychological problems, the problems of academic performance and its assessment, as well as the interfaces of our school system with enrolment at universities and the transfer and transition to work and study. A new inflation in grading, the rampant testitis and the topic of inclusion - a school for all! - round off the look at our school system of today, which is in need of reform.
A Review on Convective Boiling Heat Transfer of Refrigerants in Horizontal Microfin-Tubes: A Typical Example
Authors: Nhan Phan Thanh , Hung Tran Van
Published: October 2021

Understanding the Heat transfer performance of refrigerant for convective boiling in horizontal microfin tube and smooth tube is place an importance role on the designing of evaporator, the main equipment on refrigeration system. Reviewing the general concept especially the theory of boiling in the tube, the formation of the flow pattern map, the calculating procedure for heat transfer coefficient and pressure drop during boiling process of refrigerant in microfin tube. Besides, a typical example will be presented more detail in step by step to define the heat transfer coefficient and pressure drop for one working condition to estimate the data results without doing experiments.
Contact Lens-Associated Infectious Keratitis: Update on Diagnosis and Therapy
Authors: Alamillo-Velazquez Jimena , E. Ruiz-Lozano Raul , C. Hernandez-Camarena Julio , Rodriguez-Garcia Alejandro
Published: October 2021

The focus of this chapter is to review the most recent advances in the diagnosis and treatment of contact-lens-related infectious keratitis, the most sight-threatening complication of contact lens wear. In the last decades, contact lenses technology has confronted several challenges, including the need for safer and more comfortable polymer materials. The development of high coefficient oxygen permeability (Dkt) and low-water content disposable contact lens translated into a significant improvement in ocular discomfort related to dry eye and allergic reactions, decreasing biofilm build-up on the external surface of the lens. Additionally, the emergence and boom-effect of corneal refractive surgery have also driven the development of better contact lens manufacturing. Despite these substantial technological advances, contact lens users continue to be at risk for developing corneal infections. We describe recent epidemiologic data, and advances in understanding the complex pathogenesis of the disease, including the clinical characteristics of the infectious process produced by bacteria, fungi, and protozoans. Finally, the recent development of diagnostic techniques and therapeutic regimens are discussed.
Role of Gut Microbiota in Bile-Acid Metabolism
Authors: Naito Yuji , Takagi Tomohisa , Inoue Ryo
Published: October 2021

The role of the gut microbiota in modifying the pathophysiology of various diseases, including neurodegenerative diseases, is increasingly becoming clear. Bile acids have been shown to be endogenous factors that affect gut microbiota, and bile-acid metabolites directly or indirectly affect host physiology and pathophysiology. The development of metagenomic analysis for gut microbiota and systematic bile-acid measurement using LC–MS/MS has triggered a breakthrough for research in this field. Clinically, an inhibitor of the ileal bile-acid transporter (Elobixibat) was used as a therapeutic agent for chronic constipation, which also paved the way for progress in bile-acid signal research. Additionally, this review emphasizes the importance of gut microbiota-bile acid-receptor signals when considering nutritional approaches to promote healthy longevity.
Which Plagues are Coming Next?
Authors: Izurieta Ricardo , Campos Adriana , Parikh Jeegan , Gardellini Tatiana
Published: October 2021

Plagues and pandemics are no longer distant thoughts of the past. Previously referred as moments in history, infectious diseases have re-emerged as potential existential threats to mankind. International Health Security researchers have repeatedly warned society about impending pandemics and in 2020, the world experienced its first major pandemic in over a century. The SARS-CoV-2/COVID-19 pandemic came fast and hit hard, impacting the entire world within months of discovery. Although SARS-CoV-2 was a completely novel virus, there are an assortment of novel and timeworn pathogens fostering the potential to become the next pandemic. This chapter focuses on pathogens ranging from yeast to virus, capable of transmission through food, water, air, or animal, that could emerge as the next International Health Security threat.
Regresso a Kant. Sobre a Evolução e a Situação Actual dos Estudos Kantianos
Authors: dos Santos Leonel Ribeiro ,   Philosophy Documentation Center
Published: October 2021

Le propos de cet essai c’est de donner une idée de la présence de la philosophie kantienne dans les débats philosophiques contemporains. Pour comprendre ce que certains auteurs interprètent déjà comme un nouveau «retour à Kant» ou même comme la survivance d’un «moment kantien de la philosophie», on a esquissé d’abord l’histoire de l’herméneutique de la philosophie kantienne dans la première partie du XXe siècle dans ses moments plus significatifs (le neokantisme, l’interprétation heideggerienne) pour faire ensuite un bilan des tendances de lecture de l’oeuvre de Kant et d’apropriation de sa philosophie après la Deuxième Guerre Mondiale et surtout dans les trois derniers decénnies du XXe siècle. Ce bilan montre l’ampleur de l’actualité de la pensée du professeur de Königsberg et son pouvoir de donner encore à penser les plus décisives questions de la philosophie en tous ses domaines fondamentaux.
Policing the Gendered Economy of Care
Authors: Adkins Karen ,   Philosophy Documentation Center
Published: October 2021

In Kate Manne’s theory of misogyny, women’s behavior is surveilled (by men and other women) so that they conform to gendered norms of behavior and care, and they are threatened or punished when they refuse to abide by norms. I seek here to extend her argument about surveillance to norms around masculinity, and to demonstrate the ways in which surveillance actually runs throughout the gendered economy of care. I assess the impacts of this surveillance (particularly on men of color, who identify as gay or trans, or who are immigrants or religious minorities), and argue that misogyny and masculinity are inextricably interlinked and mutually reinforcing phenomena, that must be simultaneously demystified for progress towards gender equity.
Pathology Residents as Testing Personnel in the Hematology Laboratory
Authors: Cotta Claudiu V. , Ondrejka Sarah L. , Nakashima Megan O. , Theil Karl S.
Published: October 2021

Context.—

Clinical laboratories and the training of pathology residents are tightly regulated environments. Compliance with regulatory requirements must be addressed when developing entrustable professional activities (EPAs) for pathology residents.

Objective.—

To describe the development of EPAs for peripheral blood and body fluid review in compliance with Clinical Laboratory Improvement Amendments and College of American Pathologists personnel and testing requirements. To examine the impact of EPA implementation on the workflow in a busy hematology laboratory.

Design.—

A training program was designed to prepare pathology residents to function as independent testing personnel in compliance with Clinical Laboratory Improvement Amendments. After a series of lectures, hands-on microscopy sessions, self-assessment quizzes, and achievement of a passing score on a training assessment exam, residents were deemed competent to release certain results independently. The volume and the turnaround time of hematology tests were compared before and after residents were integrated into the laboratory workflow. Faculty and residents were surveyed to assess satisfaction with the training.

Results.—

Empowering residents to independently release noncritical results from peripheral blood and body fluid reviews had no adverse impact on test turnaround time. The resident contribution to workflow resulted in a corresponding decrease in the number of cases that required attending pathologist review. Faculty and residents viewed the EPAs as beneficial to service and education.

Conclusions.—

The implementation of the EPAs had a beneficial effect on the laboratory, the trainees, and faculty. Our experience may be helpful to other training programs as EPAs become more widely implemented in residency training.
Autopsy Techniques in Patients With History of Radiofrequency Ablation for Atrial Fibrillation
Authors: Challa Bindu , Yao Keluo , Allenby Patricia , Hitchcock Charles L. , Ivanov Youri , Brodsky Sergey V.
Published: October 2021

Context.—

Esophageal fistula formation is one of the most feared complications of radiofrequency catheter ablation. This procedure and its many variations, such as the “maze,” are becoming the mainstream treatment for atrial fibrillation owing to limitations of antiarrhythmic drugs. The incidence of this complication rate has been reported to be from 0.01% to 1%.

Objective.—

To delineate the importance of using the en bloc Letulle method of dissection for identifying esophageal fistulas for cases with a history of radiofrequency catheter ablation.

Design.—

Six autopsy cases with a history of radiofrequency catheter ablation for atrial fibrillation were selected from 1736 autopsies performed between 2009 and 2020.

Results.—

The initial presenting symptoms included neurologic symptoms, chest pains, epigastric discomfort, and sepsis. Transesophageal echocardiogram in 4 cases showed no evidence of thrombus or vegetation, however, 2 cases had evidence of atrial esophageal fistula. The autopsy findings included 5 atrial esophageal fistulas and 1 esophagopericardial fistula. Atrial esophageal fistulas were small and could be detected without difficulty when the en bloc Letulle technique was used and would have been easily missed by the Virchow method. The immediate causes of the deaths were myocardial ischemia, septic emboli to brain and heart, hypovolemic shock secondary to exsanguination, stroke, and coagulopathy.

Conclusions.—

To date, this is the largest collection of autopsy cases showing esophageal fistula associated with prior radiofrequency catheter ablation. The Letulle dissection method is preferable in this setting.
Addition of data to the checklists of fungi of the classes Leotiomycetes and Pezizomycetes of Serbia
Authors: Savić Dragiša
Published: October 2021

Biodiversity of Ascomycota fungi in Serbia is still scarcely known although mostly phytopathogenic literature data can be found from the last decade, including previous checklists for classes Leotiomycetes and Pezizomycetes. This paper presents data on the new findings of fungal species of the classes Leotiomycetes and Pezizomycetes in Serbia, found mainly in the period from 2016 to 2020. Only those species whose presence is not mentioned in the existing checklists are included in the presented list.
Materials for a flora of Serbia from the Herbarium collection PZZP (3)
Authors: Perić Ranko , Knežević Jelena
Published: October 2021

This article presents the third part of data on selected new and noteworthy taxa ensuing from the revision of Herbarium collection of the Institute for Nature Conservation of the Vojvodina province (PZZP). Selected taxa include 11 species, three subspecies, three varieties, one infraspecific taxon with indetermined status [stat. indet.] and one nothospecies placed within seven genera (Filago L., Ludwigia L., Luzula DC., Lycopus L., Lythrum L., Phlomis L. and Silene L.). Two varieties (Luzula campestris subsp. campestris var. elata, Silene flos-cuculi subsp. floscuculi var. latifolia) and one infraspecific taxon with indetermined status (Luzula multiflora subsp. multiflora [stat. indet.] b. uliginosa) are new for a flora of Serbia. Additionally, one species (Ludwigia palustris) and one nothospecies (Lythrum ×scabrum) are confirmed for Serbia.
Using geoinformation tools for redistricting: Slovenian experiences
Authors: Rogelj Boštjan , Krevs Marko
Published: October 2021

Electoral districts are an important component of the electoral system, as they have a significant impact on election results. Due to the uneven spatial distribution of electoral support political parties receive, district magnitude and the geography of electoral districts can have a decisive influence on the electoral viability of individual parties and candidates. Districting and redistricting are not a simple bureaucratic process but a politically very sensitive process with outcomes that can have far-reaching political consequences. Geoinformation tools can have a very important role in electoral district planning. In this article we aim to present the key advantages and disadvantages of their use. The presented results are derived from practical experience gained over the course of developing a new system of electoral districts in Slovenia.
Surface water pollution with nutrient components, trace metals and metalloidsin agricultural and mining-affected river catchments: A case study for three tributaries of the Maritsa River, Southern Bulgaria
Authors: Radeva Kalina , Seymenov Kalin
Published: October 2021

This work analyses changes in the content of nutrient components and trace metals and metalloids at three tributaries of the Maritsa River flowing in Southern Bulgaria with catchments affected by mining and agricultural activities. Input data includes information about 14 chemical water quality parameters (N-NH 4 , N-NO 3 , N-NO 2 , N-tot, P-tot, P-PO 4 , Al, As, Fe, Cu, Mn, Ni, Pb, and Zn) obtained from the Executive Environment Agency for the period 2015-2018. Two documented methods were used in this work to determine the pollution status of river waters-Heavy metal pollution index (HPI) and CCME Water Quality Index. The results based on the CCME WQI ranked water quality as "Poor" (WQI values range from 31.2 to 39.9). The HPI ratings achieve scores exceeding the critical pollution value of 100 for some of the metals (Al, Cu, Mn, and Zn), which indicates that water is seriously polluted concerning those variables. Therefore, it can be summarized that the river waters are not appropriate for safe drinking , agriculture, and household use because of significant nutrient and metalloids and trace metalscon-tamination.
Internationalization and globalization: Concept, interpretation and communication
Authors: Hámori Tamás
Published: October 2021

Today, globalization has completely determined our everyday life. However, due to COVID-19 virus pandemic, it has received unprecedented attention. There is a lively debate about whether it is useful, whether it is needed, and where it is headed. The situation is further complicated by the subordination of economic interests to populist politics. To understand today's globalization and its future, we need to examine its formation and development. It is important to understand what effects have influenced and what its influence was throughout history, whether positive or negative. After interpreting the past, we examine research and assumptions about the present and the future.
Is it possible that there is a new reading of Sima Pandurović?
Authors: Jašović Predrag
Published: October 2021

In this paper, we analyse the poetry of Sima Pandurović. We check whether there is a possibility to read this Serbian classic in new hermeneutic key, although more than a century has passed since the first editions of his poetry. On this occasion we also analyse the opinions of the most relevant literary critics and literary historians. This paper, in this respect, also represents the new reading of these authors, with the aim to see whether in their rather rigid views there was a hint for a new reading of this poet in the future. Although the literary criticism of some critics was one-dimensional in relation to the views on the meaning and poetics of Sima Pandurovic, we can see that this will change significantly at the end of this and the beginning of the new century. There will even be scientific studies that will rather rigid views of new sensed meanings, not only in the poetry of Pandurović but also of all modernists (Towards the Poetics of Serbian Moderna, 2017). This paper aims to show another new dimension of the meaning of Pandurovic's poetry, concerning religion and religious subtext.
Polysemy as one of the problems of translation from French to Serbian, for example, the open skies agreement and related acts
Authors: Miljković Nađa
Published: October 2021

In this paper we deal with, in terms of traductology and lexical semantics, analysis of legal terminology translation of the Multilateral Agreement between the European Community and its Member States, the Republic of Albania, Bosnia and Herzegovina, the Republic of Bulgaria, the Republic of Croatia, the Former Yugoslav Republic of Macedonia, the Republic of Iceland, TheKingdom of Norway, Romania, the Republic of Serbia and the United Nations Interim Administration Mission in Kosovo on the establishment of a common European aviation area as well as its accompanying legal acts in the form of implementation of the European regulations contained in Annex I of the aforementioned agreement into domestic legislation from French to Serbian in order to resolve all problems that an interpreter faces and offer solutions for overcoming them. As Serbia is in process of joining the EU, it is extremely important to harmonize legal regulations with its legislation, where language, as basic legal instrument, plays a crucial role in it. Therefore, the success of application and standardization of legal norms and regulations when concluding bilateral or multilateral agreements depends on correct translation. Starting from thes ituational (denotative) theoretical translation model and the principle of functional equivalence, we will pay special attention to types of semantic relations (monosemy, polysemy, synonymy) between French and Serbian legal terms.
A model for the formation of the readiness of educators to create conditions for the successful adaptation of children of primary preschool age to kindergarten
Authors: Pazuhina Svetlana , Kleîmënova Elena
Published: October 2021

The article considers the problem of training kindergarten teachers to create conditions for the successful adaptation of children of primary preschool age. Readiness is considered as a stable multidimensional, multicomponent property of a teacher, which includes motivational, emotional, cognitive and activity components. The model proposed by the authors to increase the level of readiness of educators is based on competency-based, systemic and personal activity, communicative approaches. The model reflects the main organizational and pedagogical conditions for improving preparedness and considers methods and forms of their implementation.
Student as an active participant in knowledge and interpretation of Christian art literary texts
Authors: Milovanović Boško
Published: October 2021

In this work, theoretical considerations on cognition and interpretation of literary and artistic text are presented. Starting from the general principles of teaching, to present students with knowledge from certain sciences in a systematic, gradual and economical way, the methodology takes on a role in the specifics of science transfer. With that aim, we want to point out the pecularities of students' activities in the process of learning and interpreting literary and aristic texts, where we exclusively think and point to younger students. Also, with this work we point out the approach of the teacher in interpretation, his or her ability and creativity to enable children a real experience of literary and artistic text.
Review of the first instructive publications in the Serbian language intended for initial piano teaching
Authors: Ilić Petar
Published: October 2021

This paper discusses the didactic-methodological content of the first instructional publications in the Serbian language, which were intended for the initial teaching of piano. The publications in question are: a collection of piano compositions by Robert Tolinger Pictures and Opportunities from Children's Life and Youth Joy (1886), a manual by Isidor Bajić Piano and Piano Learning (1903) and a textbook by Danica Krstić Piano School (1911). The mentioned publications are not on the list of the current Curriculum for initial piano lessons. They are not even mentioned as proposed literature for the subject Methodology of piano teaching, which is attended by students of basic academic studies in the field - piano. The aim of this paper is to emphasize the value of the mentioned teaching literature which belongs to the historical and pedagogical heritage of the Serbian people. In addition, the intention is to determine the specific didactic-methodological elements in these publications, which could be applicable in modern music and educational trends.
Sociological approach to the understanding of orthodox religious teaching in the first cycle of primary education
Authors: Nastić Nevena
Published: October 2021

In this paper, throught the analysis of Ortodox religious education, in the curricula for the first cycle of primary education in the Republic of Serbia, explore cycle values that are directed to students to teach, accept and incorporate them into ther behavior. This research is conducted from a sociological theoretical and methodological point of wiew, according to whitch, through the study of religion, certain social phenomena and processes are known. To that end, this paper presents the basic theoretical determinations of Othodoxy in sociology, points out the process of returning religious education in Serbi and analyzes the current curricula of Orthodox religious education from the first to the fourth grade of primary school. This is about Orthodox Christianity of the Serbian style and experience, founded in the part of Saint Sava, known as Svetosavlje. In the function of this paper, an analytical descriptive method was applied, in order to identify and describe teaching contents from Orthodox religious teching, and then to determine their coherence with other teaching contents and the ruling system of social values in the Republic of Serbia. The basic starting point in these considerations is that the religious values of Orthodoxy are contained in the curricula for the first cycle of primary education characterized by traditional culture and morals. They affect: the development of awareness of belonging to the Orthodox faith, Serbian tradition and nation; on the development of religious tolerance among people and towards other confessional communities, as well as on the acquisition of religious culture among students.
La estilística rediviva: la semioestilística y los signos poéticos
Authors: Oancea Ileana
Published: October 2021

-
La semiótica y la edición de un texto poético integral
Authors: Marian Rodica
Published: October 2021

-
Mentalidad y estructuras mágico-eróticas tradicionales
Authors: Coatu Nicoleta
Published: October 2021

-
Pontevedra (1901-1924)
Authors: Aparicio Moreno Paulino
Published: October 2021

-
La corporalidad en la escena contemporánea
Authors: Sánchez Montes María José
Published: October 2021

-
Poesia no dice nada: una aproximación al ritmo semántico
Authors: Usandizaga Helena
Published: October 2021

-
Reseña de: Francisco Gutiérrez Carbajo. TEATRO CONTEMPORANEO: ALFONSO VALLEJO (Madrid: Universidad Nacional de Educación a Distancia, 2001, 213 páginas)
Authors: Romero López Dolores
Published: October 2021

-
Reseña de: Muniz Sodré y Raquel Paiva. O IMPERIO DO GROTESCO (Rio de Janeiro: MAUAD, 2000, 160 páginas)
Authors: Contreras Fernando Ramón
Published: October 2021

-
Maria Chiara Rioli. A Liminal Church: Refugees, Conversions and the Latin Diocese of Jerusalem, 1946-1956
Authors: Frizzell Lawrence E.
Published: October 2021

No abstract is available.
Openings and Closings in Workplace Emails
Authors: Rygg Kristin
Published: October 2021

Languages vary when it comes to linguistic manifestations of formal politeness, but what particularly marks professional email communication is the flexibility of the genre compared to traditional, formal business letters. This poses the question of how individual email writers navigate without clear standards and clearly prescribed formulae. This study focuses on the individual email writer and, specifically, opening salutations and closing valedictions in 927Norwegian workplace emails, followed by metapragmatic interviews with their senders. In an egalitarian society with few explicit linguistic manifestations of formal politeness, individual choices of formulations provide a rich source of data. Linguistic content analysis reveals a significant degree of consistency in each person’s individual use, which indicates that when there are no commonly held norms, people make their own rules. The interviewees are aware ofwhich openings and closings they prefer, but often not why. Further analysis of the data reveals that hierarchical social distance is not a motivational factor, but the intentions to be either personally close or professionally distant are. Both are regarded as viable options in formal workplace emails by their users. However, the informants’ perception of which linguistic items represent these motivations depends on individual preferences rather than on any establishedor institutionalised practises. The latter is not a uniquely Norwegian problem, but concerns email correspondents in general because of the flexibility innate to the email genre.
On 2-Clubs in Graph-Based Data Clustering: Theory and Algorithm Engineering
Authors: Figiel Aleksander , Himmel Anne-Sophie , Nichterlein André , Niedermeier Rolf
Published: October 2021

Editing a graph into a disjoint union of clusters is a standard optimization task in graph-based data clustering.
Here, complementing classical work where the clusters shall be cliques, we focus on clusters that shall be 2-clubs, that is, subgraphs of diameter at most two.
This naturally leads to the two NP-hard problems $\rm{2-C \small{LUB}}$ $\rm{C{\small LUSTER}}$ $\rm{E{\small DITING}}$ (the editing operations are edge insertions and edge deletions) and $\rm{2-C \small{LUB}}$ $\rm{C{\small LUSTER}}$ $\rm{V{\small ERTEX}}$ $\rm{D{\small ELETION}}$ (the editing operations are vertex deletions).
Answering an open question from the literature, we show that $\rm{2-C \small{LUB}}$ $\rm{C{\small LUSTER}}$ $\rm{E{\small DITING}}$ is W[2]-hard with respect to the number of edge modifications, thus contrasting the fixed-parameter tractability result for the classical $\rm{C{\small LUSTER}}$ $\rm{E{\small DITING}}$ problem (considering cliques instead of 2-clubs).
Then, focusing on $\rm{2-C \small{LUB}}$ $\rm{C{\small LUSTER}}$ $\rm{V{\small ERTEX}}$ $\rm{D{\small ELETION}}$, which is easily seen to be fixed-parameter tractable, we show that under standard complexity-theoretic assumptions it does not have a polynomial-size problem kernel when parameterized by the number of vertex deletions.
Nevertheless, we develop several effective data reduction and pruning rules, resulting in a competitive solver, outperforming a standard ILP formulation in most instances of an established biological test data set.
Entre ce qu’ils pensent, ce qu’ils disent et ce qu’ils font, quelles articulations ? Analyse quantitative des croyances épistémologiques, des conceptions pédagogiques et des pratiques d’enseignants québécois du secondaire en sciences naturelles et en sciences humaines et sociales
Authors: Baillet Dorothée , Therriault Geneviève
Published: October 2021

L’articulation entre les croyances épistémologiques, les conceptions de l’enseignement et de l’apprentissage et les pratiques pédagogiques des enseignants de sciences et de sciences humaines au secondaire a peu été étudiée, en particulier dans le monde francophone (Araújo-Oliveira, 2012, 2019 ; Bartos et Lederman, 2014 ; Wanlin et al., 2019). Pourtant, si les enseignants affichent des croyances majoritairement constructivistes sur l’enseignement et l’apprentissage, leurs pratiques d’enseignement réelles demeurent plutôt passives (enquête internationale TALIS – OCDE, 2019). Après avoir caractérisé ces trois construits théoriques auprès d’un échantillon composé de 215 enseignants québécois (débutants, intermédiaires et expérimentés) du secondaire en sciences humaines et sociales et en sciences naturelles, l’article en explore les articulations soit à partir d’analyses statistiques, soit en les mettant en perspective dans une phase interprétative de la recherche. Les résultats reposent sur l’analyse quantitative des réponses des enseignants à un questionnaire fermé en ligne comportant trois parties. Les analyses statistiques (ACP, ANOVA à plan factoriel, corrélations et Khi-deux) montrent que les croyances épistémologiques des enseignants sont plutôt raffinées, qu’il existe un effet de l’ancienneté professionnelle et un effet de la discipline enseignée sur ces croyances de même qu’un lien entre des croyances épistémologiques raffinées et des conceptions de l’enseignement et de l’apprentissage traditionnelles. Enfin, les pratiques déclarées des enseignants semblent peu sensibles à la discipline enseignée.
Buscando los orígenes de la creatividad llegas al futuro
Authors: Sivera Silvia
Published: October 2021

El estudio de la creatividad ha interesado a perfiles de investigadores de variadas disciplinas, desde la psicología hasta la más reciente sociobiología. Entre las lecturas veraniegas he descubierto el trabajo de uno de los padres de esta última, el entomólogo Edward O. Wilson, que promete un viaje por las galerías de los orígenes de la creatividad humana y acaba vaticinando una Tercera Ilustración.
Developing a Model Based on Sustainable Development for Prioritizing Entrepreneurial Challenges Under a Competitive Environment
Authors: Khalilsanjani Amir , Saparauskas Jonas , Yazdani-Chamzini Abdolreza , Turskis Zenonas , Feyzbakhsh Alireza
Published: October 2021

In the post-recession period, the business environment in developing countries is still relatively undesirable. Based on the reports published, the number of closed entrepreneurs are significantly more than the number of those newly established. These statistics also reflect that the development of entrepreneurship faces several challenges. However, a strategic management program must be accurately conducted to effectively control entrepreneurial challenges based on the limitation of time and financial resources. On the other hand, the program should provide an appropriate opportunity for competitiveness by producing better quality goods and services successfully marketed to consumers. The aim of this paper is to propose a robust model with a high potential for evaluation of entrepreneurial challenges in order to identify and control the most critical ones. To achieve the aim, the most critical parameters should be identified to prevent wasting the resources. Likewise, the analytical network process (ANP) method, a branch of multi-criteria decision making (MCDM) techniques, is a powerful tool that can consider all interrelationships and interdependencies between criteria. On the other hand, neutrosophic sets are among the most widespread approaches in coping with vagueness and unknown environment. The methodology employed in this paper uses a combination model based on ANP and neutrosophic sets using sustainable development indicators to prioritize the challenges of entrepreneurship. The results show that the proposed model has a high potential to provide a process for decision-making under a vague environment.
The Impact of Financial Innovation Investment Support on SME Competitiveness
Authors: Lewandowska Anna , Bilan Yuriy , Mentel Grzegorz
Published: October 2021

This article examines financial support (especially EU Structural Funds as the main tool of cohesion policy) for investments as a lever for the development of SME innovativeness in Poland. The European Commission strongly stresses the importance of their cohesion policy and support for SMEs. European enterprises have suffered significantly from the credit crunch, and the situation could worsen as banks engage in restructuring to eliminate impaired assets from their balance sheets. Supporting SMEs and promoting entrepreneurship is essential for economic development and competitiveness, especially in less developed regions. The main aim of this study is to establish the impact of financial support for investments, especially from EU Structural Funds, on SME competitiveness in Poland. We have analyzed empirically the data drawn from CATI carried out among 805 firms. We have learned how SMEs assess the financial support from different sources along with the resulting impact on the competitiveness of SMEs. The main statistical test for relationships and dependencies was the chi-square independence test and Cramer’s V. The results of our research show that SMEs have not used financial support efficiently. Moreover, micro-enterprises were shown to be the least effective after receiving financial support from EU funds. This support often has a demand-driven effect, but it does not improve firm competitiveness.
Implementation of Voluntary Instruments by Czech Enterprises to Meet Sustainability and Competitive Growth
Authors: Vrabcova Pavla , Urbancova Hana
Published: October 2021

A responsible business reflects the fundamental values of a society and is important for all enterprises. It can improve their economic, environmental, and social characteristics from a short- and long-term perspective through innovative products and services, new capabilities, and stakeholder involvement. This study aims to identify the common convergent factors of voluntary instruments in management systems to achieve sustainable business and competitive growth. There are several tools aimed at achieving sustainability and competitiveness, an important component of which is the subject of this study: the voluntary approach. To determine the key factors of this approach, we used the online questionnaire technique of data collection (n = 183). We also conducted exploratory analysis with factors estimated by the principal components and orthogonal rotation using the varimax method. Relevant driving forces are identified in the development of the business models of sustainability and competitiveness, including the integration of quality, environment and occupational safety and health management systems, the environmental profile of the organisation for economic and social affairs, voluntary reporting of environmental activities, and evaluation of environmental impacts. These factors make a significant contribution towards improving environmental sustainability while ensuring competitive business. The ability to move quickly and successfully to these business models is an important source of sustainable competitive advantage.
Current-carrying friction behavior of graphene with intervention of interfacial current
Authors: Wang Yan-Qing , Li Jia-Hao , Peng Yong , Zhao You-Hong , Bai Li-Chun ,   CRRC Qingdao Sifang CO., LTD., Qingdao 266111, China,   Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha 410075, China,   School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, China
Published: October 2021

Graphene has shown the great potential applications in the field of solid lubricants due to its outstanding mechanical properties and chemical inertness. The introduction of interfacial current at the graphene-lubricated surface is expected to tune the lubrication performance of graphene. Here in this work, an atomistic configuration of single-crystal silicon tip sliding against graphene supported by an elastic substrate is constructed to investigate the current-carrying friction behavior of graphene by using molecular dynamics simulations. The effects of applied voltages, normal loads and substrate stiffnesses on the current-carrying friction behavior of graphene are systematically explored. The simulation results show that when the bias voltage is applied to the graphene-based system, the friction force undertaken by the tip is one order of magnitude larger than when applying no bias voltage. The friction increases with the magnitude of bias voltage increasing, but the increasing rate varies in different directions of bias voltage. A similar friction-voltage relationship of graphene under different normal loads and substrate stiffnesses indicates its relatively stable current-carrying friction behavior and the robust current-carrying effect. The increased friction force of graphene after the introduction of interfacial current can be attributed to the expansion of current-carrying region, causing Coulomb interactions instead of van der Waals interactions to dominate the adhesions at the friction interface. Based on the Prandtl-Tomlinson model, the current-carrying friction mechanism of graphene is systematically discussed. It is found that such a friction mechanism is different from the pucker effect of graphene, but follows the energy barrier theory. This work promotes the graphene to be used as the typical solid lubricant under the complex operation conditions with the voltage-induced current going through friction interfaces.
Uni-directional self-driving of water droplets on monolayer graphene-covered wedge-shaped copper substrate
Authors: Zhang Fu-Jian , Chen Yue , Gao Xiang , Liu Zhen , Zhang Zhong-Qiang ,   Institute of Intelligent Flexible Mechatronics, Jiangsu University, Zhenjiang 212013, China,   School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China,   Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China
Published: October 2021

The self-driving of water droplets on textured substrate is momentous for understanding the directional transport of water on biological surface. In this paper, a novel design of monolayer graphene-covered wedge-shaped copper substrate (GWCS) is put forward to realize the directional and ultrafast spontaneous driving of water droplets from the tip of the wedge-shaped substrate to the wide end. The self-driving behaviors of water droplets on GWCS are studied by classical molecular dynamics. The results show that the maximum spontaneous driving velocity of water droplet driven by surface wetting gradient and Young-Laplace pressure gradient can reach 73.8 m/s. The law of energy variation during the whole droplet self-driving on GWCS indicates that there is a competitive relationship between the potential energy of water droplet and the interaction energy between the droplet and GWCS, i.e. the interaction energy between water droplet and GWCS is partially converted into the potential energy of water droplet. The relationship of the maximum displacement of water droplet with the wedge angle, wettability of GWCS and the droplet surface tension is proposed in theory, and the influence of the discontinuous linear increase of the wedge-shaped substrate width on a nanoscale on the self-driving is analyzed and used to explain the little difference between the theoretical and simulation results. Furthermore, a smaller droplet is easier to obtain larger spontaneous driving velocity, and the influence of long-distance decelerating motion of high-speed small droplet on the non-wetting gradient substrate on the droplet displacement law is clarified. Finally, the mechanism of graphene suspended on both sides of the wedge-shaped copper structure to enhance the droplet transport efficiency is determined. The results will have theoretical significance in designing the functional texture surface covered by monolayer graphene to realize droplet self-driving.
Intracranial Dermoid Cyst in the Posterior Fossa: A Case Report
Authors: Li Li , Richard Seidu A. , Lan Zhigang , Zhang Yuekang
Published: October 2021

Introduction: Intracranial dermoid cysts are benign, ectopic squamous epithelial cysts often compose of dermal structures like hair follicles, sweat glands as well as sebaceous glands. This lesions constitutes about 0.5% of all intracranial neoplasms. Thus, the occurrence of a dermoid cyst in the posterior fossa is very rare. We report a rare case of intracranial dermoid cyst in posterior cranial fossa. Case Presentation: Our first case was a 32 years old woman who presented with headaches and dizziness with no nausea, vomiting or fever. CT scan revealed a mass at occipital cistern consistent with a cystic lesion. MRI also revealed an irregular lesion in the posterior part of the medulla oblongata with enhanced edges signifying calcifications. We attained total resection of the tumor in a piece meal approach via surgery. Histopathology confirmed dermoid cyst. Two years follow-up revealed no recurrence of the lesion and no neurological deficits. Conclusion: We advocate that, the goal in surgical decision-making should be safe and total resection while monitoring the cranial nerves with electromyographic and auditory brainstem responses.
Obstructing Trachea Tumor: Myoepithelial Carcinoma about a Case
Authors: Kessab Amine , Zegmout Adil , Reda El Ochi Mohammed , El Omari Wafaa , Rhorfi Abderrahmane , Oukabli Mohamed
Published: October 2021

Myoepithelial carcinoma, also called malignant myoepithelioma, is an extremely rare tumor of the salivary gland type. It is defined as a malignant neoplasm in which the tumor cells exhibit exclusively myoepithelial differentiation. Our case is a 48-year-old patient with no specific history who was presented to the hospital emergency room for respiratory difficulty and dysphagia progressively evolving for 08 weeks. A cervical CT was done which revealed a hypodense tumor process in T1 of 4 cm long axis obstructing the trachea well limited and richly vascularized. The diagnosis of tracheal myoepithelial carcinoma was made after histological and immunohistochemical analysis on a biopsy pending analysis of the operative specimen. Treatment remains initially surgical with appropriate postoperative radiotherapy and chemotherapy.
Genetic effects of long-term captive breeding on the endangered pygmy hog
Authors: Purohit Deepanwita , Manu Shivakumara , Ram Muthuvarmadam Subramanian , Sharma Shradha , Patnaik Harika Chinchilam , Deka Parag Jyoti , Narayan Goutam , Umapathy Govindhaswamy
Published: October 2021

Long-term captive populations often accumulate genetic changes that are detrimental to their survival in the wild. Periodic genetic evaluation of captive populations is thus necessary to identify deleterious changes and minimize their impact through planned breeding. Pygmy hog (Porcula salvania) is an endangered species with a small population inhabiting the tall sub-Himalayan grasslands of Assam, India. A conservation breeding program of pygmy hog from six founders has produced a multi-generational captive population destined for reintroduction into the wild. However, the impact of conservation breeding on its genetic diversity remained undocumented. Here, we evaluate temporal genetic changes in 39 pygmy hogs from eight consecutive generations of a captive population using genome-wide SNPs, mitochondrial genomes, and MHC sequences, and explore the relationship between genetic diversity and reproductive success. We find that pygmy hog harbors a very low genome-wide heterozygosity (H) compared to other members of the Suidae family. However, within the captive population we find excess heterozygosity and a significant increase in H from the wild-caught founders to the individuals in subsequent generations due to the selective pairing strategy. The MHC and mitochondrial nucleotide diversities were lower in captive generations compared to the founders with a high prevalence of low-frequency MHC haplotypes and more unique mitochondrial genomes. Further, even though no signs of genetic inbreeding were observed from the estimates of individual inbreeding coefficient F and between individuals (FIS) in each generation, the kinship coefficient showed a slightly increasing trend in the recent generations, due to a relatively smaller non-random sample size compared to the entire captive population. Surprisingly, male pygmy hogs that had higher heterozygosity also showed lower breeding success. We briefly discuss the implications of our findings in the context of breeding management and recommend steps to minimize the genetic effects of long-term captive breeding.
Prognostic model of AU-rich genes predicting the prognosis of lung adenocarcinoma
Authors: Liu Yong , Pang Zhaofei , Zhao Xiaogang , Zeng Yukai , Shen Hongchang , Du Jiajun
Published: October 2021

Background

AU-rich elements (ARE) are vital cis-acting short sequences in the 3’UTR affecting mRNA stability and translation. The deregulation of ARE-mediated pathways can contribute to tumorigenesis and development. Consequently, ARE-genes are promising to predict prognosis of lung adenocarcinoma (LUAD) patients.

Methods

Differentially expressed ARE-genes between LUAD and adjacent tissues in TCGA were investigated by Wilcoxon test. LASSO and Cox regression analyses were performed to identify a prognostic genetic signature. The genetic signature was combined with clinicopathological features to establish a prognostic model. LUAD patients were divided into high- and low-risk groups by the model. Kaplan–Meier curve, Harrell’s concordance index (C-index), calibration curves and decision curve analyses (DCA) were used to assess the model. Function enrichment analysis, immunity and tumor mutation analyses were performed to further explore the underlying molecular mechanisms. GEO data were used for external validation.

Results

Twelve prognostic genes were identified. The gene riskScore, age and stage were independent prognostic factors. The high-risk group had worse overall survival and was less sensitive to chemotherapy and radiotherapy (P < 0.01). C-index and calibration curves showed good performance on survival prediction in both TCGA (1, 3, 5-year ROC: 0.788, 0.776, 0.766) and the GSE13213 validation cohort (1, 3, 5-year ROC: 0.781, 0.811, 0.734). DCA showed the model had notable clinical net benefit. Furthermore, the high-risk group were enriched in cell cycle, DNA damage response, multiple oncological pathways and associated with higher PD-L1 expression, M1 macrophage infiltration. There was no significant difference in tumor mutation burden (TMB) between high- and low-risk groups.

Conclusion

ARE-genes can reliably predict prognosis of LUAD and may become new therapeutic targets for LUAD.