bluuebunny/crossref_metadata_2025 huggingface dataset:
US Screening and Evaluation System of Inventions Utilized in Hungary
Authors: Kovács Katalin
Published: January 2021

The commercialization of inventions is very complex and challenging therefore it requires the collaboration of several actors in an economy. Even when an invention possesses significant added value, its successful commercialization could only be executed in a stable macroeconomic and innovation environment and also if proper innovation management expertise is provided. ValDeal Innovations Zrt. was established to foster the commercialization of Hungarian, high business potential inventions by providing its business expertise. The company used an – already in various markets and countries probed – US innovation management method consisting of the tasks of technology evaluation as well as the commercialization of inventions. There were major changes necessary while probing the US method residing in the different macroeconomic circumstances and the attitudes for innovation in Hungary. The article details the above mentioned issues together with the conclusions the members of ValDeal have drawn during the innovation management process.
A kockázat szerepe a könyvvizsgálatban = The role of risk in external audits
Authors: Mohl Gergely
Published: January 2021

A tanulmány a kockázatnak és a kockázatok felmérésének az éves beszámolók (pénzügyi kimutatások) könyvvizsgálatban betöltött szerepével foglalkozik. A modern könyvvizsgálat – belső és külső korlátainál fogva – nem létezhet a vizsgált vállalkozás üzleti kockázatainak felmérése nélkül. Olyannyira igaz ez, hogy a szakma alapvető szabályait lefektető nemzeti és nemzetközi standardok is kötelező jelleggel előírják az ügyfelek üzleti kockázatainak megismerését. Mindez nem öncélú tevékenység, hanem éppen ez jelenti a könyvvizsgálat kiinduló magját: a kockázatbecslés – a tervezés részeként – az audit végrehajtásának alapja, és egyben vezérfonala. A szerző először bemutatja a könyvvizsgálat és a kockázat kapcsolatának alapvonásait, azt, hogy miként jelenik meg egyáltalán a kockázat problémája a könyvvizsgálatban. Ezt követően a különféle kockázatalapú megközelítéseket tárgyalja, majd néhány főbb elem kiragadásával ábrázolja a kockázatkoncepció beágyazódását a szakmai szabályozásba. Végül – mintegy az elmélet tesztjeként – bemutatja a kockázatmodell gyakorlati alkalmazásának néhány aspektusát. ______ The study examines the role of risk and the assessment of risks in the external audit of financial statements. A modern audit – due to its internal and external limitations – cannot exist without the assessment of the business risk of the entity being audited. This is not a l’art pour l’art activity but rather the very core of the audit. It is – as part of the planning of the audit – a guideline to the whole auditing process. This study has three main sections. The first one explains the connection between audit and risk, the second discusses the different risk based approaches to auditing and the embeddedness of the risk concept into professional regulation. Finally – as a test of theory – some practical aspects of the risk model are discussed through the lens of former empirical research carried out mostly in the US. The conclusion of the study is that though risk based models of auditing have many weaknesses they still result in the most effective and efficient high quality audits.
A projektalapú szervezetek projektmarketing-tevékenységének sajátos kontextusa (Contextual features of project marketing activity of the project-based organisations)
Authors: Görög Mihály
Published: January 2021

Ez a tanulmány a projektvezetési szakirodalomban kialakult ismeretanyagot szem előtt tartva (noha tételesen nem hivatkozva arra) tárja fel azt a sajátos és tipikusnak nevezhető kontextust, amelyben a projektalapú szervezetek projektmarketing tevékenysége megnyilvánul. A tanulmány célja tehát nem magának a projektmarketingnek a kérdéskörére irányul, hanem elsősorban annak projektspecifikus kontextusára. Jellegét illetően a tanulmány spekulatív jellegű, vagyis lényegét tekintve nem empirikus kutatási eredményekből levont következtetésekre épül. _____ Traditional approach to project marketing focuses on process-related aspects of the marketing efforts of project- based organisations. This paper is different. Unlike to the traditional approach it highlights the decisive contextual features of project marketing, bearing in mind the typical project business from the point of view of project-based organisations. These features include: a) instead of physically existing products project-based organisations need to sell their ability to create the project outcome physically; b) the project outcome and the conditions of implementation are defined by the project client; c) project clients are involved in creating the project outcome; d) project implementation strategy applied in a client organisation may vary project by project. These determining contextual features shape to a great extent the actual competitive position of the project-based organisations which may vary project by project even in relation to the very same project client.
Adaptív döntéshozatal a beszállítóválasztás példáján (Adaptive decision-making on example of the supplier selection)
Authors: Esse Bálint
Published: January 2021

Ez a tanulmány a projektvezetési szakirodalomban kialakult ismeretanyagot szem előtt tartva (noha tételesen nem hivatkozva arra) tárja fel azt a sajátos és tipikusnak nevezhető kontextust, amelyben a projektalapú szervezetek projektmarketing tevékenysége megnyilvánul. A tanulmány célja tehát nem magának a projektmarketingnek a kérdéskörére irányul, hanem elsősorban annak projektspecifikus kontextusára. Jellegét illetően a tanulmány spekulatív jellegű, vagyis lényegét tekintve nem empirikus kutatási eredményekből levont következtetésekre épül. _____ The author analyses the cognitive level of individual decisions by placing the adaptive decision-maker in the centre of interest. The main question is how do adaptive processes evolve and what factors determine the adaptive mechanism. The author builds on his own qualitative study conducted with the Grounded Theory Methodology in the SME sector. The supplier selection decision is chosen from the wide range of business decisions. From the research results the two elements of the adaptive mechanism – the metastructure and the attitude set –, the process of their evolution and the factors determining this process are presented. The findings here are a middle-range theory, which can be elaborated further, but they provide some interesting insights already.
Evaluation of Cumulative Damage of Sandstone under Cyclic Wetting and Drying through Acoustic Wave Parameters and Resistivity Testing
Authors: He Ye , Wang Kui , Ji Yuehui , Wu Guoyin , Zhao Mingjie
Published: January 2021

This paper carries out cyclic wetting and drying experiments on the sandstones from the bank slope of an inland port, and explores the deterioration features and acoustic wave parameters and resistivity (AWPR) of the sandstone. The variations in P-wave velocity, attenuation coefficient, nonlinear coefficient, resistivity, and other indices with the cycle number were discussed in details. Then, the correlations between P-wave velocity, resistivity, and physical-mechanical indices were analyzed based on the experimental results. Through the analysis on instantaneous damage analysis, a cumulative damage model was proposed, in the light of the AWPR. The results show that: the evolution of sandstone resistivity can accurately reflect the deterioration features of the sandstone under cyclic wetting and drying, providing a desirable tool to characterize rock strength deterioration and internal damage changes. Taking cycle number into account, the proposed theoretical model for cumulative damage can derive the damage and deterioration of sandstone excellently. By this model, the AWPR at any moment can be acquired in real time on site, which is convenient for engineering application.
Microstructure Analysis of IS2062 Plates Cladded with SS2594 by TIG Welding Process
Authors: Yokeswaran R. , Vijayan V. , Karthikeyan T. , Loganathan M. , Antony A. Godwin
Published: January 2021

The power requirement of industries has been growing like anything now-a-days. The components involved in the production of power have also attracted more attention in industrial revolution. The present work focuses on improving the hardness and shear resistance of IS2062 work material used in the manufacturing of fire tubes in thermal power plants. The cladding of surface was carried out by Tungsten Inert Gas (TIG) welding with the use of SS2594 duplex steel as surface coating material. Hardness test results revealed that cladding process have raised the value from 170 to 411. Microstructural analysis has revealed the formation of refined grains at the clad zone due to continuous recrystallization of martensite. It has happened because of higher gas flow rate during welding. Macroscopic analysis has proved the increase in current during the process improved the diffusion of SS2594 material into the base metal IS2062.
La Práctica Reflexiva: un modelo transformador de la praxis docente
Authors: Domingo Roget Angels
Published: January 2021

No recuerdo dónde leí la anécdota de un profesor inglés de la Open University que daba una conferencia sobre la docencia universitaria. Uno de los asistentes, avanzada la conferencia, le interrumpió para protestar diciéndole que todo aquello que les estaba señalando resultaba inne-cesario, que él como parte de sus colegas allí presentes tenían ya muchos años de ser profesores, 25 en su caso, y que todo lo que había que saber sobre enseñanza ya lo sabían. El conferenciante, que tampoco se mordía la lengua, le respondió preguntándole si estaba seguro de tener 25 años de experiencia o lo que tenía era, más bien un año de experiencia repetido 24 veces.
La Práctica reflexiva en la Universidad Iberoamericana: Rutas Formativas y Área de Reflexión Universitaria (ARU)
Authors: Béjar López Peniche María Ofelia
Published: January 2021

La reflexión ha sido un tema central en el proyecto educativo de la Universidad Iberoamericana en Ciudad de México, que se distingue por la formación que desde el humanismo integral desarrolla en sus estudiantes. En la universidad hemos confirmado que un docente no podrá conducir a los estudiantes hacia la reflexión si no ha experimentado por él mismo lo que se requiere para esta práctica y lo que se puede lograr cuando se lleva a cabo de modo continuo; por ello el interés institucional en la formación en esta línea. Las Rutas Formativas desde la práctica reflexiva son un modelo de formación docente, que orien-tan y conducen al profesor hacia la autorreflexión y la reflexión continua y consciente de sus acciones: antes, durante y después de la clase; para llevar a cabo cambios e innovaciones perti-nentes, mejorar sus estrategias y desarrollar las competencias que los estudiantes necesitan. Se fundamentan en la metodología del aprendizaje experiencial y en la propuesta del profesional reflexivo de Donald Schön. El ARU tiene la misión de lograr la formación humanista integral de los estudiantes, a partir de una reflexión honda sobre la realidad humana en todas sus dimensiones, y esto mediante mate-rias y profesores que, formados desde la práctica reflexiva, llevan al estudiante a tomar decisiones libres y responsables.
La autobiografía como estrategia activadora de la reflexión docente: desafíos y oportunidades
Authors: Haas Prieto Valentina , Reyes Santander Pamela
Published: January 2021

La reflexión constituye una de las competencias más importantes de la vida de un docente, pues independiente de la etapa que este atraviese, surge como el motor de su empoderamiento, cre-cimiento y mejora. En tal línea, esta investigación se centra en el estudio de la autobiografía como activador de la reflexión en profesores en formación de primaria. Para ello se les solicitó a los futuros profesores graficar sus autopercepciones, basándose en sus experiencias de buen o mal rendimiento en el área de las matemáticas. Esto fue complementado con entrevistas semies-tructuradas de carácter individual. Los resultados muestran cómo la reflexión es activada por la autobiografía, la cual permite a los futuros docentes entender el por qué de ciertas conductas y disposiciones para aprender y, enseñar, además de proyectar posibilidades en sus futuras prácticas como maestros ya formados. Las conclusiones muestran desafíos y proyecciones en los que la re-flexión vinculada a la autobiografía abre diversos e interesantes espacios de crecimiento y mejora en las acciones del futuro quehacer profesional.
Conceptualizing News Literacy
Authors: Callecod-Weinrich Kimberly
Published: January 2021

The nascent field of news literacy is often described as a subset of media literacy. A review of international scholarship with regard to news literacy conceptualizations confirms that there are diverse and competing notions of its definition and purpose: while the civic component of news literacy clearly distinguishes it from media literacy and other new literacies, there is a noticeable divide between journalism-driven and media literacy-derived approaches. Qualitative data analysis was used to identify patterns in a subset of approximately 120 examples of current English-language international scholarship. By proposing three preliminary taxonomic classifications of news literacy – protectionist versus empowerment; skills versus knowledge; and levels of abstraction – this conceptual paper provides orientation in the field.
Tools of the trade: click-tracks and conductors
Authors: Moore Thomas R.
Published: January 2021

This essay will examine the manner in which composers and artistic directors have used conductors and click-tracks within the context of new music ensembles performing integrative concerts. The analyses and examples provided will rely for the most part on material gathered during in-depth interviews that I conducted with artistic directors, composers, conductors, and musicians, all of whom are professionally active in the new music field in Europe (and beyond). I will examine the application of both click-tracks and conductors and demonstrate that their implementation represents an active choice made by either the composer and/or artistic directors. Both click-tracks and conductors are viewed by the interviewees as potential tools with somewhat overlapping possibilities and capacities and their presence is no secondary phenomenon of the music. They become instead a means for the above actors to meet their objectives, be they artistic, pragmatic, technical, or otherwise.
Philology as a systematic method of documentation and its application to the study of Constança Capdeville’s musical works
Authors: Magalhães Filipa
Published: January 2021

The advent of new music technologies has led to a rapid growth of the audio preservation field. Music is not independent of its medium, and this growing loss of independence calls for a transdisciplinary approach with a strong technological component. Musical compositions created in the second half of the twentieth century exist in the intersection of technology, embodiment, and sound and thus widen the importance of aspects such as human and non-human interactions. This article will reflect on these issues and how they reframe (digital) philology methods through the works of Constança Capdeville. The works by this seminal artist are accompanied by an extensive archive that includes scores, recorded sounds, video and images, among other documents. It will be demonstrated how a reflexive approach to digital philology can bring concealed archival stories to light while fostering new meanings on what it means to preserve our sound heritage. Resource optimisation is one of the reasons methods of traditional philology are particularly useful for the preservation of contemporary musical heritage. Today the amount of information is excessive, and categorisation and organisation are complex. Most information exists in the form of digitised documents, that comply with certain requirements traditionally applied to secular paper registers while assessing qualities such as reliability and authenticity. Traditional philology approaches framed around these qualities are insufficient for born-digital documents. A reflexive approach to digital philology, focussed both on the creation of digital resources (from digitalisation to cataloguing) and the criticism of digital sources, as a solution the digital treatment of documents is proposed. A comparative approach will be used to understand in what ways digital and analogue media intertwine in the forms we think, reflect, historicise, and preserve our sound archives, and how we make visible aspects that were previously concealed through new forms of categorising and digitising documents.
Instytucja pytań prejudycjalnych do Trybunału Sprawiedliwości w praktyce Sądu Najwyższego RP
Authors: Miąsik Dawid
Published: January 2021

Artykuł w sposób kompleksowy i syntetyczny analizuje instytucję pytań prejudycjalnych do Trybunału Sprawiedliwości z perspektywy Sądu Najwyższego RP jako sądu unijnego. Przedstawia okoliczności wpływające na wykonywanie przez SN obowiązku kierowania pytań do TS z punktu widzenia krajowego orzecznictwa ze szczególnym uwzględnieniem zastosowania doktryn acte eclaire i acte clair. Uwzględnienia specyfikę różnych postępowań toczących się przed SN oraz różnych źródeł prawa unijnego. Prezentuje cele zadawanych pytań, przedmiot, sposób formułowania i uzasadniania. Odrębny fragment poświęcono wykonywaniu wyroków TS wydanych w odpowiedzi na pytania prejudycjalne SN z punktu widzenia zasad stosowania prawa unijnego przez sądy krajowe (prounijna wykładnia, bezpośredni skutek oraz pierwszeństwo).
Criticism of classical pragmatism: the unknown origins of Czesław Znamierowski’s theory and philosophy of law
Authors: Dybowski Maciej
Published: January 2021

Artykuł przedstawia kluczowe idee rozprawy doktorskiej Czesława Znamierowskiego z 1911 r. na temat pojęcia prawdy w pragmatyzmie (Der Wahrheitsbegriff im Pragmatismus), dotychczas nieomawiane w literaturze, oraz wpływ, jaki wywarły na niektóre z jego późniejszych idei w filozofii i teorii prawa. Polemika z pragmatyzmem umocniła jego późniejsze poglądy na naukę i logikę, a zwłaszcza na problem logicznej wartości zdań. Ten fundamentalny wgląd w antypsychologizm Znamierowskiego, tj. niezależność logiki od stanów, dostarcza głębszego wyjaśnienie dualizmu w jego teorii norm prawnych, którym przypisywał zarówno prawdziwość, jak i obowiązywanie, niezależne od siebie. Analiza Wahrheitsbegriff pod kątem epistemologicznego zawieszenia Znamierowskiego między empiryzmem a aprioryzmem może również pomóc w lepszym zrozumieniu źródeł jego obiektywistycznej ontologii społecznej oraz takich pojęć prawnoteoretycznych, jak „norma konstrukcyjna” i „akt tetyczny”.
Jarosław Gołębiewski, Systemy żywnościowe w warunkach gospodarki cyrkularnej, Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego, Warszawa 2019
Authors: Skawińska Eulalia , Zalewski Romuald I.
Published: January 2021

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Odnowienie doktoratu Profesora Macieja Zielińskiego
Authors: Rzepiński Wojciech
Published: January 2021

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Status prawny oskarżyciela w postępowaniu przed Trybunałem Stanu
Authors: Radajewski Mateusz
Published: January 2021

Celem artykułu jest zrekonstruowanie norm prawnych regulujących status prawny oskarżyciela w postępowaniu przed Trybunałem Stanu, co ma pozwolić na określenie charakteru prawnego tej funkcji, a także jego kompetencji procesowych oraz zasad jego wyboru i okoliczności skutkujących wygaśnięciem jego mandatu. Przeprowadzone analizy dotyczące charakteru prawnego funkcji oskarżyciela prowadzą do sformułowania wniosku, że w postępowaniu przed Trybunałem Stanu działa on we własnym imieniu, a zatem nie jest przedstawicielem procesowym parlamentu. Jednocześnie jednak jego funkcja nie jest samoistna, a organ, który go powołał, sprawuje nad nim ogólną kontrolę. Autor stwierdza, że do oskarżyciela stosuje się co do zasady wszystkie normy Kodeksu postępowania karnego dotyczące oskarżyciela publicznego. Wykluczone jest jednak cofnięcie przez niego oskarżenia, co pozostaje w gestii parlamentu. Analizy dotyczące wyboru oskarżyciela pozwoliły na sformułowanie wniosku, że decyzja w tej sprawie podejmowana jest niezależnie od samego oskarżenia, a Konstytucja nie wymaga podjęcia uchwały w tym zakresie bezwzględną lub kwalifikowaną większością głosów. W odniesieniu do wygaśnięcia funkcji oskarżyciela autor stawia między innymi tezę o możliwości odwołania go w każdym czasie przez parlament. Artykuł wieńczą rozważania dotyczące oceny regulacji ustawowych odnoszących się do badanego zagadnienia.
Ochrona sygnalistów (whistleblowers) w kontekście wolności wypowiedzi
Authors: Pietruszka Artur
Published: January 2021

Ochrona sygnalistów jest przede wszystkim przedmiotem zainteresowania prawa pracy, jednakże w orzecznictwie Europejskiego Trybunału Praw Człowieka wskazuje się na związki ochrony sygnalistów z ochroną wolności wypowiedzi. Ujawnienie nieprawidłowości przez sygnalistę jest bowiem realizacją prawa do rozpowszechniania informacji, chronionego przez Konstytucję RP oraz Konwencję o ochronie podstawowych praw i wolności. Sygnalizacja pozwala na kontrolę funkcjonowania instytucji publicznych oraz realizację postulatu transparentności życia publicznego, dlatego w demokratycznym społeczeństwie jest szczególnie istotne, by zapewnić sygnalistom ochronę przed różnego rodzaju sankcjami, które mogą być na nich nałożone w następstwie ujawnienia informacji o nieprawidłowościach. Celem niniejszego artykułu jest ustalenie, w jakich warunkach osobie ujawniającej nieprawidłowości przysługuje status sygnalisty, dokonanie analizy związków ochrony sygnalistów z wolnością wypowiedzi, a także próba rozważenia, czy na państwie ciążą obowiązki objęcia sygnalistów ochroną.
Az önkéntes véradás hazai médiareprezentációjának empirikus vizsgálata egyetemi hallgatók mintáján
Authors: Dorner László
Published: January 2021

A TANULMÁNY CÉLJA

Az önkéntes véradás hazai kommunikációs és médiareprezentációjának vizsgálata: milyen platformokon, milyen időközönként találkoznak a témával az egyetemi hallgatók, mennyire hatékonyan szólítják meg őket a jelenlegi toborzási módszerek, platformok, reklámok, a személyt körülvevő társas kapcsolati háló. Ezen kívül a véradással kapcsolatos tudnivalók ismerete is vizsgálatunk tárgyát képezte.

ALKALMAZOTT MÓDSZERTAN

Véradó (N=250) és nem véradó (N=262) felsőoktatásban tanuló hallgatók vettek részt korábbi nemzetközi kutatásokban (Zito et al 2012) használt, valamint saját szerkesztésű önkitöltős kérdőívekkel végzett vizsgálatunkban.

LEGFONTOSABB EREDMÉNYEK

A társas kapcsolatok mind a véradók, mind a nem véradók megszólításában kiemelt jelentőséggel bírnak: a szülők és barátok mellett az aktív véradók meggyőzésben betöltött szerepét emelhetjük ki. Az információszerzésben az internetes médiafelületek és a nyomtatott sajtótermékek, a kampányelemeknél a személyes példamutatás és a gondolkodásra késztető üzenetek hatékonysága mutatható ki. A korrekt tájékoztatás (a véradás feltételeiről, folyamatáról és a kizárás okairól) és a személyzet empatikus hozzáállása, kommunikációs készsége egyértelműen hozzájárulhatnak a véradás elkezdéséhez.

GYAKORLATI JAVASLATOK

Az aktív véradók toborzásban betöltött szerepének növelése, a fiatalok igényeihez illesztett, főként digitális térben megvalósuló, folyamatos információáramlást biztosító, dinamikus marketing- és kommunikációs stratégia alkalmazása javíthatja a célcsoport toborzásának és megtartásának hatékonyságát.

Köszönetnyilvánítás: Köszönöm a Magyar Vöröskeresztnek a kutatásban nyújtott segítségét.
A vállalaton belüli innováció-kommunikáció, mint a szervezeti kultúra része – a szakirodalom tükrében
Authors: Borgulya Ágnes , Kovács Éva
Published: January 2021

A TANULMÁNY CÉLJA

Az innováció-kommunikáció döntő jelentőségű a vállalati innovációk létrejöttének szempontjából. A kommunikáció az innovációnak és így a vállalati sikernek előmozdítója vagy – rosszul kezelve – akadálya is lehet. Tanulmányunk a vállalaton belüli innováció-kommunikációra fókuszál, és nem foglalkozik a diffúzió területével. Célunk, hogy a kommunikáció szerepét és lehetőségeit feltérképezve hozzájáruljunk a vállalati innovációt segítő belső kommunikációs környezet javításához és az ezt segítő módszerek megtalálásához. Szakirodalmi források elemzése alapján megfogalmazzuk azokat a következtetéseket, amelyek a gyakorlatba átültetve az innovatív gondolkodást, az innovációt előmozdító tényezőkké válnak. Az elméleti rendszerezés ösztönzés kíván lenni további innováció-kommunikáció kutatások folytatására.

ALKALMAZOTT MÓDSZERTAN

A szakirodalom alapján egyrészt modellt alkotunk az innováció-kommunikáció folyamatának rendszer-szemléletére, elhelyezzük a tudásmenedzsment, az innováció-menedzsment és a változásmenedzsment összefüggésében, valamint a tudáskommunikáció és változáskommunikáció egymásra hatásában. Kimutatjuk e három menedzsment-, illetve kommunikáció-terület szoros kapcsolatát. Másrészt összegyűjtjük, tényfeltáró vizsgálat alá vetjük, szintetizáljuk és rendszerbe foglaljuk a külföldön közel húsz éve folyó belső innováció-kommunikációt feltáró kutatásokat tükröző szakirodalmat, és ezek tartalmai alapján megfogalmazzuk következtetésünket. A vizsgálandó irodalomat a hazai és külföldi élen járó vezetéstudományi/menedzsment szakfolyóiratokra és a téma sokat idézett művelőinek monográfiáira szűkítettük, ugyanakkor kitértünk néhány olyan műre is, amely megítélésünk szerint értékes adalékokat tartalmaz, de a látószögből könnyebben kieső publikációkban kapott nyilvánosságot.

LEGFONTOSABB EREDMÉNYEK

A dolgozat többoldalúan, humán nézőpontból világítja meg az eddig Magyaroszágon csupán egyes részleteiben ismertetett menedzsment-területet. Kijelöli az innováció-kommunikáció helyét az innovációmenedzsmentben és elhelyezi a tudás-, valamint a változásmenedzsment folyamatában. Kiemeli az innovációt támogató szervezeti kultúra kommunikációs jellemzőit, és a gyakorlatban alkalmazható rendszerbe foglalja azokat.

JAVASLAT A GYAKORLATI ALKALMAZÁSRA

Javasoljuk, hogy amennyiben a gyakorlati szakemberek innováció-kultúra kialakítását tűzik ki célul, vegyék figyelembe a vállalati innováció-kommunikáció tervezésében a megfogalmazott következtetéseket és biztosítsák a gyakorlatban azokat a feltételeket az (intern) kommunikációban és a szervezeti kultúrában, amelyek támogatják a hasznos víziók,  ötletek megvalósulását és zavartalan innovatív gondolkodás-légkört teremtenek.

 

Köszönetnyilvánítás: A dolgozat az MTA GTB Kommunikációmenedzsment Munkabizottságának „Innováció-kommunikáció a vállalatoknál” című konferenciáján, 2020. március 6-án elhangzott, Borgulya Ágnes: „Innováció-kommunikáció a vállalatok gyakorlatában – elméleti nézőpontból“ előadás tanulmány-változata.
Effect of Unloading Direction on Rock Failure under True Triaxial Stress Conditions
Authors: Jia Peng , Yang Nan , Liu Dong-qiao
Published: January 2021

Rock failures induced by excavation unloading in the direction of the minimum principal stress σ3 and the intermediate principal stress σ2 were numerically simulated and analyzed. The damage evolution process, the failure mode, and the failure mechanism under the two conditions were investigated. The results show that the unloading direction of the principal stress has a significant impact on the rock failure mode. Under the same triaxial stress level, when unloading σ3, rock failure is mainly caused by localized tensile-shear composite failure; when unloading σ2, rock failure is mainly caused by tensile buckling failure. When unloading σ3, the damage is mainly concentrated near the free surface; however, when unloading σ2, the damage range increases and develops toward the interior of the rock. The greater the intermediate principal stress is before unloading, the larger the number of splitting fractures and the magnitude of dilatation are, and the smaller the thickness of the splitting plate is. These results may shed light on the prevention and mitigation of rock instability in deep underground engineering.
A New Mouse Model Related to SCA14 Carrying a Pseudosubstrate Domain Mutation in PKCγ Shows Perturbed Purkinje Cell Maturation and Ataxic Motor Behavior
Authors: Shimobayashi Etsuko , Kapfhammer Josef P.
Published: January 2021

Spinocerebellar ataxias (SCAs) are diseases characterized by cerebellar atrophy and loss of Purkinje neurons caused by mutations in diverse genes. In SCA14, the disease is caused by point mutations or small deletions in protein kinase C γ (PKCγ), a crucial signaling protein in Purkinje cells. It is still unclear whether increased or decreased PKCγ activity may be involved in the SCA14 pathogenesis. In this study, we present a new knock-in mouse model related to SCA14 with a point mutation in the pseudosubstrate domain, PKCγ-A24E, known to induce a constitutive PKCγ activation. In this protein conformation, the kinase domain of PKCγ is activated, but at the same time the protein is subject to dephosphorylation and protein degradation. As a result, we find a dramatic reduction of PKCγ protein expression inPKCγ-A24Emice of either sex. Despite this reduction, there is clear evidence for an increased PKC activity in Purkinje cells fromPKCγ-A24Emice. Purkinje cells derived from PKCγ-A24E have short thickened dendrites typical for PKC activation. These mice also develop a marked ataxia and signs of Purkinje cell dysfunction making them an interesting new mouse model related to SCA. Recently, a similar mutation in a human patient was discovered and found to be associated with overt SCA14. RNA profiling ofPKCγ-A24Emice showed a dysregulation of related signaling pathways, such as mGluR1 or mTOR. Our results show that the induction of PKCγ activation in Purkinje cells results in the SCA-like phenotype indicating PKC activation as one pathogenetic avenue leading to a SCA.

SIGNIFICANCE STATEMENTSpinocerebellar ataxias (SCAs) are hereditary diseases affecting cerebellar Purkinje cells and are a one of neurodegenerative diseases. While mutation in several genes have been identified as causing SCAs, it is unclear how these mutations cause the disease phenotype. Mutations in PKCγ cause one subtype of SCAs, SCA14. In this study, we have generated a knock-in mouse with a mutation in the pseudosubstrate domain of PKCγ, which keeps PKCγ in the constitutive active open conformation. We show that this mutation leading to a constant activation of PKCγ results in a SCA-like phenotype in these mice. Our findings establish the constant activation of PKC signaling as one pathogenetic avenue leading to an SCA phenotype and a mechanism causing a neurodegenerative disease.
Impacts of high temperature on embryonic growth and seed germination of dill (Anethum graveolens)
Authors: Bukharov Alexander F. , Baleev Dmitry N. , Soldatenko Aleksey V. , Musaev Farhad B. , Kezimana Parfait , Priyatkin Nikolay S.
Published: January 2021

Temperature is the main exogenous factor that determines the growth, development and productivity of agricultural plants, including seed germination. In this work, we studied the thermosensitivity of heterogeneous dill seeds (Anethum graveolens). The study aimed to study the short-term (1-5 days) effect of high temperature (40°C) on the growth of the embryo and germination of dill seeds formed on different umbels of the mother plant. The growth of the embryo had a significant effect on seed germination (r = 0.976; P < 0.001). Seeds collected from primary umbels have a more developed embryo and can overcome the effects of thermal stress. We also found that the duration of heat exposure at 40°C, leading to a decrease in viability, can vary from 1-5 days for seeds from primary umbels, to 1-2 days for seeds from secondary umbels, which, in our opinion, is due to the heteromorphism. The influence of the place of seed formation on the mother plant and the high temperature during germination is critical for embryo growth and dill seeds’ germination.
Differential impact of osteoporosis, sarcopenia and obesity on physical performance in aging men
Authors: Genest Franca , Schneider Michael , Zehnder Andreas , Lieberoth-Leden Dominik , Seefried Lothar
Published: January 2021

Purpose

Aging and concurrent constitutional changes as sarcopenia, osteoporosis and obesity are associated with progressive functional decline. Coincidence and mutual interference of this risk factors require further evaluation.

Methods

Cross-sectional evaluation of musculoskeletal health in a community-dwelling cohort of men aged 65–90 years. Objectives included descriptive analysis of age-related decline in physical performance, prevalence of osteoporosis (FRAX-Score), sarcopenia (EWGSOP criteria) and obesity (BMI > 30 kg/m2) and their coincidence/interference.

Results

Based on 507 participants assessed, aging was associated with progressive functional deterioration, regarding power (chair rise test −1.54% per year), performance (usual gait speed −1.38% per year) and muscle force (grip strength −1.52% per year) while muscle mass declined only marginally (skeletal muscle index −0.29% per year). Prevalence of osteoporosis was 41.8% (n = 212) while only 22.9% (n = 116) of the participants met the criteria for sarcopenia and 23.7% (n = 120) were obese. Osteosarcopenia was found in n = 79 (15.6%), sarcopenic obesity was present in 14 men (2.8%). A combination of all three conditions could be confirmed in n = 8 (1.6%). There was an inverse correlation of BMI with physical performance whereas osteoporosis and sarcopenia did not interfere with functional outcomes.

Conclusion

Based on current definitions, there is considerable overlap in the prevalence of osteoporosis and sarcopenia, while obesity appears to be a distinct problem. Functional decline appears to be associated with obesity rather than osteoporosis or sarcopenia. It remains to be determined to what extend obesity itself causes performance deficits or if obesity is merely an indicator of insufficient activity eventually predisposing to functional decline.
Male germline development in the tammar wallaby, Macropus eugenii
Authors: Ishihara Teruhito , Griffith Oliver W , Tarulli Gerard A , Renfree Marilyn B
Published: January 2021

Male germ cells undergo two consecutive processes – pre-spermatogenesis and spermatogenesis – to generate mature sperm. In eutherian mammals, epigenetic information such as DNA methylation is dynamically reprogrammed during pre-spermatogenesis, before and during mitotic arrest. In mice, by the time germ cells resume mitosis, the majority of DNA methylation is reprogrammed. The tammar wallaby has a similar pattern of germ cell global DNA methylation reprogramming to that of the mouse during early pre-spermatogenesis. However, early male germline development in the tammar or in any marsupial has not been described previously, so it is unknown whether this is a general feature regulating male germline development or a more recent phenomenon in mammalian evolutionary history. To answer this, we examined germ cell nuclear morphology and mitotic arrest during male germline development in the tammar wallaby (Macropus eugenii), a marsupial that diverged from mice and humans around 160 million years ago. Tammar pro-spermatogonia proliferated after birth and entered mitotic arrest after day 30 postpartum (pp). At this time, they began moving towards the periphery of the testis cords and their nuclear size increased. Germ cells increased in number after day 100 pp which is the time that DNA methylation is known to be re-established in the tammar. This is similar to the pattern observed in the mouse, suggesting that resumption of germ cell mitosis and the timing of DNA methylation reprogramming are correlated and conserved across mammals and over long evolutionary timescales.
Presentación de Signo Distintivo Semillero de investigación en Sociología Jurídica
Authors: Melba Nydia León Rodríguez , Luis David Rivera Herrera , Jennifer Vega-Barbosa
Published: January 2021

Este documento da cuenta de la presentación del signo distintivo del semillero de investigación en sociología jurídica.
Observatorio de bibliometría y cienciometría USTA Métricas de autor FICHA BIBLIOMÉTRICA Corina Duque Ayala
Authors: Corina Duque Ayala
Published: January 2021

Informe de las métricas de autor de la Dra. Corina Duque Ayala de las publicaciones indexadas en Google Académico cuyo objetivo es entregar un insumo para el fortalecimiento de las capacidades y potencialidades de los autores de la Universidad Santo Tomás en el posicionamiento y visibilidad de sus publicaciones.
Observatorio de bibliometría y cienciometría USTA Métricas de autor FICHA BIBLIOMÉTRICA Cristian Fernando Tellez Piñerez
Authors: Cristian Fernando Tellez Piñerez
Published: January 2021

Informe de las métricas de autor del Dr. Cristian Fernando Tellez Piñerez de las publicaciones indexadas en Google Académico cuyo objetivo es entregar un insumo para el fortalecimiento de las capacidades y potencialidades de los autores de la Universidad Santo Tomás en el posicionamiento y visibilidad de sus publicaciones.
Risk-oriented approach to the issue of industrial safety and energy resource efficiency gas transport enterprises
Authors:   State Higher Educational Institution «Pridneprovsk State Academy of Building and Architecture», Belikov A.S. , Matsuk Z.N. ,   State Higher Educational Institution «Pridneprovsk State Academy of Building and Architecture»
Published: January 2021

Any gas-main pipeline presents a technological complex of objects that functions as a single system, where all objects of the gas-main pipeline are classified as hazardous facilities, for which most of the existing risks are typical. In order to maintain a gas-transport system in operational, standard and safe condition, it is necessary to perform repair (routine) work assuming replacement or repair of defective sections of the pipe (or other equipment). The methods which an operator of a gas-transport system uses today for ensuring safety of such repair (routine) work are either environmentally harmful (“bleed” of gas), or hazardous and inefficient by energy and/or resource (“bleed” of gas, gas utilization, increasing of pipeline bearing capacity, "overlaying-welding" of defects under pressure, etc.). With this scheme of technological process, level of working and environmental safety and energy-resource efficiency of gas-transport enterprises sharply decreases. The purpose of our research was to propose a risk-oriented approach to the problem of working safety and energy resource efficiency of the gas-transport enterprises. The only type of repair, with which operational (safe) state and resource of the pipeline system can be fully restored is replacement of defective pipe or its section. Therefore, at the stage of preparatory work, the most acute problem is discharge of natural gas from the local section of pipelines by means of its pumping-over (accumulation) instead of "bleeding" or "utilization". We propose a rational, effective and risk-oriented approach to the use of mobile compressor units for pumping over (evacuating) of natural gas as a method for improving working safety and energy efficiency of the gas-transport enterprises. The proposed approach allows the gas-transport companies to create quickly an automated risk management system and reduce the risk level and, as a result, to improve working safety and energy efficiency of the processes of gas transportation.
Control of a Direct Current Motor Using Time Scaling
Authors: Rairán Antolines José Danilo
Published: January 2021

Humans naturally control their surrounding space. However, that capacity has not been fully used to build better intelligent controllers, mainly because the reaction time of a person limits the number of industrial applications. In this paper, the author propose a method to overcome the problem of reaction time for a human in the control loop. This method, called Time Scaling Control, starts by modifying the constant times of the plant’s model to the point where control is comfortable for a human. Then, the controller acquires the knowledge that was expressed during the human control stage and places it in a Neural Network, which controls both scaled and original plants. Time Scaling Control highly improves the control performance compared with a PID, in this case demonstrated by the control of a direct current motor, which cannot be controlled by a human without time scaling control due to the speed of the system.
Entropy-based image encryption using Orthogonal Variable Spreading Factor (OVSF)
Authors: Ballesteros Dora M. , Renza Diego , Peña Jimmy
Published: January 2021

The purpose of image encryption is to provide data privacy and security. The former ensures that only authorized personnel can access the original content, while the latter implies that there is no evident relationship between the encrypted and the original content, and that the key space is equally likely and large enough. In the current state of the field, there are several proposals of image encryption techniques with very high privacy (in terms of entropy) but weak in terms of security (i.e., small key space). Recently, a new encoding-based method that provides a long key space (namely 8,57 × 10506) with a middle value of entropy (87%) was proposed. Our proposal preserves the strength of the image encryption methods based on encoding, but with a higher value placed on security than the preliminary works. Every pixel of an image is mapped into an orthogonal code based on 256 bits. The 8-OVSF codes are selected to encode the image, given that the entropy of the inter-symbol is near the possible maximum. Numerous test results verify that our ciphered data have a very high value of entropy (98,5%) with an equally likely and long key space (8,57 × 10506), thus providing an adequate balance between privacy and security.
Optimal Coordination of Active Generators in a Grid-Connected Microgrid
Authors: Luna Adriana C. , Diaz Aldana Nelson Leonardo , Narvaez Eider Alexander
Published: January 2021

In a microgrid composed of distributed active generators based on renewable energy sources, with heterogeneous features and generation profiles, the availability of the energy resource, the energy reserve capacity, and the degradation of the storage unit, define the constraints for the management and dispatch of each active generator. This can result in sub-optimal use of distributed energy resources in comparison with the operation of a single generation unit. However, under the current trend oriented to distributed installations, the overall operation could be improved if an aggregated operation is considered within the management level. This paper proposes a coordinated operation of the storage units associated with distributed active generators for a hybrid grid-connected microgrid. In order to optimize the use of the active generators, including the equalization of the state of charge of the storage units, a mathematical model is proposed. This model tries to avoid uneven degradation of the storage units, and, consequently, enhance the reserve capacity and reduce the depth of discharge by achieving the operation of the distributed system as a unified system. The simulations are carried out in GAMS and MATLAB in order to validate the system’s operation. The results show a better performing grid-connected microgrid with the proposed approach.
Composting of byproducts from the orange (Citrus sinensis (L.) Osbeck) and sugarcane (Saccharum spp. hybrids) agroindustries
Authors: Debernardi-Vazquez Teresita de Jesus , Aguilar-Rivera Noe , Nuñez-Pastrana Rosalia
Published: January 2021

There is a global problem involving the generation, management, disposal, and treatment of agro-industrial waste, since it requires technologies for its transformation into the sustainable production of food, fodder, biofuels, fibers, bioproducts, and biofertilizers. The citrus and sugarcane agroindustries generate waste or byproducts that require a special treatment to be reused. Sugarcane byproducts already have an established but unsustainable use. In the case of citrus fruits, 50-60% of the organic waste has an acidic pH (3-4), 95% organic matter, and 80-90% moisture. The objective of this research was to evaluate and model the pile composting method applied to byproducts of the orange and sugarcane agroindustries to obtain compost with competitive physicochemical parameters for use as a soil improver. The pile was designed with a pyramidal rectangular arrangement, and 9 points were established for temperature sampling in three different sections during composting. An average of 55 °C and a pH of 9,1 were obtained at the end of the process. Compared to the regional control, the C/N ratio (27,5), organic matter (65,5%), and macro- and microelements show improved characteristics for use in food production in agroecological agriculture.
Adsorption Thermodynamics of Cr(VI) Removal by using Agro-Industrial Waste of Oil Palm Bagasse and Plantain Peels
Authors: Villabona Ortíz Angel , Tejada-Tovar Candelaria Nahir , Ortega Toro Rodrigo
Published: January 2021

The effect of temperature on the adsorption of Cr (VI) was determined with waste materials from the agroindustry, such as palm bagasse and plantain peels, by determining the thermodynamic parameters which allow to establish the mechanisms that control the process. The methodology included an initial preparation of the biomass, its characterization, and subsequent adsorption tests by setting the initial concentration of the metal to 100 ppm, a particle size of 0,5 mm, a biomass amount of 0,325 g, pH 2, and a volume of 100 mL. The process temperature varied between 303,15, and 352,15 K. The concentration of the remaining metal in the solution was performed using the diphenyl carbazide colorimetric method through a UVVis spectroscopy at a wavelength of 540 nm. The results show that the effect of temperature does not present a defined trend for palm bagasse, whereas it is linear for adsorption using plantain peels. Furthermore, the process of adsorption of Cr (VI) with palm bagasse is more favorable at higher temperatures, since it is a spontaneous process with a physical adsorption mechanism. On the other hand, the adsorption process with plantain peels is thermodynamically feasible at temperatures from 40 to 55 °C and not spontaneous at higher temperatures. Also, a physicochemical adsorption mechanism was evinced. It is concluded that the use of the studied materials is possible in the removal of the Cr (VI) ion in aqueous solutions.
Power Quality in AC Islanded Microgrids: Technical Framework and State of the Art Review
Authors: Quintero-Molina Vanessa , Blanco Ana María , Romero-L Miguel , Meyer Jan , Pavas Andrés
Published: January 2021

In recent years, operation and control strategies in distribution systems have changed due to the increase in the connection of distributed generation sources (DGs). Small local networks with electricity users and DGs are known as microgrids. These microgrids can operate independently (islanded) or in collaboration (interconnected) with the main network or other microgrids. Some advantages of interconnected microgrids include the reduction of losses, an increase in reliability, and decentralized operation under fault conditions. Nevertheless, when a microgrid operates in islanded mode, its electrical characteristics change and, consequently, the severity of power quality disturbances can increase, as well as their negative impact on electronic devices (loads and DG devices). This paper presents a comprehensive literature review of existing studies on power quality disturbances in islanded microgrids and identifies the most relevant needs for future research on this topic. Detailed information is analyzed to compare the differences between disturbance levels in both interconnected and islanded microgrids. In the case of harmonic disturbances, the impact of the different microgrid configurations is also analyzed.