bluuebunny/crossref_metadata_2025 huggingface dataset:
Problem ideałów w twórczości i życiu Fiodora Dostojewskiego. Polemika z uwagami Lwa Szestowa
Authors: Putała Nina
Published: May 2021

Lew Szestow w swoim studium nad twórczością i życiem Fiodora Dostojewskiego ukazuje pisarza jako myśliciela, który wraz z doświadczeniem życiowym wyzbywa się naiwnego odniesienia do ideałów i stopniowo odkrywa istotę dramatu ludzkiej egzystencji. Szestow – krytyk idealizmu i tradycji opartej na rozumie – pokazuje proces porzucania przez Dostojewskiego ideałów jako akt filozoficznej odwagi i wyjście z ograniczeń racjonalnego dyskursu. Przy tym Szestow pomija pozytywną, poznawczą funkcję odniesienia do ideałów, którą – zdaniem autorki – Dostojewski, wbrew przypisywanym mu przez Szestowa poglądom, zauważa.
Deposição a Laser de Superliga à Base de Cobalto sobre Aço Inoxidável Austenítico
Authors: Veiga Marcelo T. , Silva Leandro J. da , Rabelo Alexsandro , Teixeira Moisés F. , Bloemer Paulo R. A. , Verran Guilherme O.
Published: May 2021

Resumo: O presente trabalho teve como objetivo determinar parâmetros de processamento a laser para deposição de revestimentos de Stellite 6 livres de descontinuidades e com geometria adequada sobre aço inoxidável austenítico. Revestimentos foram depositados com uma fonte de laser de diodo, equipada com um cabeçote coaxial contínuo, utilizando diferentes potências do feixe e velocidades de varredura. A geometria (largura, altura, ondulação e diluição) dos revestimentos foi medida por meio de análise da secção transversal. Esses dados obtidos foram utilizados para a modelagem do processo (superfície de resposta) e para estimar parâmetros otimizados (função desejabilidade), que foram posteriormente verificados experimentalmente. A microestrutura dos revestimentos depositados com os parâmetros otimizados foi caracterizada por microscopia óptica e eletrônica de varredura. A seleção adequada dos parâmetros resultou em revestimentos com bom acabamento, livre de descontinuidades superficiais e baixa diluição. Os resultados mostram que a potência do laser teve efeito significativo sobre a diluição, enquanto a velocidade influenciou na altura da camada depositada. A microestrutura resultante do revestimento é composta por dendritas ricas em cobalto e a região interdendrítica com carbonetos de cromo. Os resultados de dureza estão de acordo com o previsto na literatura.
Diseño y Construcción de una Máquina de Soldadura de Fricción por Aglomeración
Authors: Sánchez-Femat Oscar Francisco , Delgado-Pamanes Miguel Fernando , Reyes-Osorio Luis Arturo , Suárez-Rosales Miguel Ángel , Chávez-Alcala José Federico , Flores-Pinedo Rafael , Becerra-Márquez Josúe Daniel
Published: May 2021

Resumen: Los procesos de soldadura por fricción son utilizados en áreas diversas tales como el sector naval, automotriz y aeroespacial. Estos procesos ofrecen una gran flexibilidad y eficiencia energética en la generación de uniones. La soldadura de fricción por aglomeración es un proceso de unión en estado sólido, en el que una herramienta giratoria opera a lo largo de una línea de unión entre dos piezas generando calor por fricción y agitación mecánica para formar la unión de soldadura. En este trabajo, se presenta el diseño y construcción de una máquina de soldadura de fricción por aglomeración, considerando las etapas: a) diseño de disco de soldadura, b) cálculo en la preparación de láminas, c) selección del motor - tornillo de avance y d) cálculo de la estructura de soporte. En la evaluación del equipo se desarrollaron uniones de soldadura en aleaciones ligeras de Zn-22% Al-2% Cu (zinalco) y Al A380 generando cordones de soldadura con un flujo continuo de material.
Efeito da Velocidade de Soldagem nas Características Geométricas e Microestruturais de Soldas por Arco Submerso em Tandem Arc
Authors: Farias Túlio Albuquerque , Silva Ana Carla Santos da , Figueredo Erike Wilker Arruda , Pereira Marcos , Silva Flávio José da
Published: May 2021

Resumo: A soldagem a arco submerso tem recebido atenção crescente na indústria devido a sua propensão a altas produtividades, que podem atingir níveis ainda maiores através da variante tandem arc (SAW-T). Este trabalho avalia a influência da velocidade de soldagem nas características geométricas e microestruturais de juntas soldadas por SAW-T com dois arames, em dois passes opostos. Para isso, fabricou-se, em velocidades de soldagem distintas, três juntas a partir de chapas de aço estrutural, em dois passes opostos cada. Avaliou-se a geometria dos cordões, a microestrutura e a distribuição de dureza ao longo da seção transversal das juntas. Aumentos de velocidade de soldagem mostraram-se detrimentais à geometria dos cordões. As zonas fundidas formadas consistem majoritariamente em variadas morfologias de ferrita, com maiores teores de ferrita acicular em amostras de velocidades de soldagem mais altas. Foram identificadas ilhas de bainita no interior de grãos nas zonas termicamente afetadas, além de outros tipos de ferrita. Os valores de dureza sofreram suave aumento com acréscimos de velocidade e não indicam suscetibilidade a trincas. As velocidades mais altas resultaram em juntas com falta de penetração, defeito que indica aporte térmico insuficiente. A junta soldada a 1200 mm/min apresentou boa geometria e microestrutura refinada.
Educação Ambiental em Escolas Municipais de Diadema, SP: estudo de características e práxis
Authors: Colagrande Elaine Angelina , Farias Luciana Aparecida , Bitencourt Ana Luisa Vietti , Leite Luiz Omir de Cerqueira
Published: May 2021

Resumo: A partir da percepção de que a sociedade do século XXI vem enfrentando muitos problemas socioambientais e que, considerando esse contexto, a educação ambiental (EA) torna-se uma prática essencial, esta pesquisa buscou entender a relação que a população de escolas públicas municipais da cidade de Diadema, região metropolitana de São Paulo, estabelece com o conhecimento no que tange ao meio ambiente e à EA, por meio de ações e projetos desenvolvidos nesses espaços. Esta pesquisa, de abordagem mista, utilizou análise documental e aplicação de questionário, a fim de identificar as características de EA presentes nos projetos e ações das escolas, de forma a inferir sobre seus efeitos no entendimento das questões socioambientais constantes em nossa sociedade. A partir dos resultados, foi possível refletir sobre caminhos que auxiliem futuras práticas nessas instituições.
E se a superfície for áspera? Um estudo sobre a influência da força de atrito em colisões inelásticas através de videoanálise
Authors: Franco R.S. , Miranda V.S. , Dutra R.S. , Ribeiro L.C.
Published: May 2021

Este trabalho apresenta um estudo que explica a física associada ao conjunto das sucessivas colisões inelásticas de um sólido esférico contra a superfície rígida do piso do laboratório, após ser lançado de uma determinada altura. O centro de massa do sólido é rastreado a partir da videoanálise realizada através do conhecido software educacional Tracker, possibilitando a obtenção da velocidade de seu centro de massa durante todo o caminho percorrido. O momento linear do sólido é obtido nos instantes imediatamente antes e após as colisões, permitindo o cálculo de sua dissipação, assim como da dissipação da energia cinética, durante esses eventos. O papel desempenhado pela força de atrito durante as colisões também é avaliado, através de uma grandeza pouco conhecida na literatura de física básica, designada por coeficiente de restituição tangencial. Medidas dessa grandeza apresentaram valores próximos à unidade e, portanto, revelaram quantitativamente que, para o experimento realizado, é ínfima a contribuição da força de atrito para o impulso durante as colisões, se comparada à fornecida pela força normal, também exercida pelo piso do laboratório. Esse resultado é implicitamente considerado em modelos de colisões apresentados em livros didáticos de física básica, onde, sem nenhuma justificativa, a força de atrito é ignorada.
Practical experience of installing slurry walls
Authors: Scopes David Stephen
Published: May 2021

Although the Horncastle project was a new build embankment, the cut-off, in the form of a slurry wall, was installed once the embankment construction was complete. As such the installation process was in practice the same as a slurry wall being installed as a part of a dam repair and/or rehabilitation works, and therefore the experience is directly transferable. Such works can be an alternative to a steel sheetpile cut-off design and therefore a key component of the sustainable management of dams. This paper is based on the author's experience on site, working full time for the main contractor supervising the installation of a sub-contractor design to a performance specification. This paper will take the reader through all stages of the installation process, from set-up and logistics, to daily operations; what the process is actually like on the ground and the health and safety and environmental considerations. For each of these stages, the paper discusses the challenges faced and their resolution, with the aim of providing engineers with an insight into the key issues to consider when planning, designing or supervising a slurry wall installation operation.
Interface creep behavior of tensioned GFRP tendons embedded in cemented soils
Authors: Chen C. , Zhu S. , Zhang G. , Morsy A. M. , Zornberg J. G. , Huang J.
Published: May 2021

This paper presents an experimental investigation and modeling of interface creep behavior of glass fiber-reinforced polymer (GRFP) tendons embedded in cemented soils. Rapid and creep pullout tests were carried out on GRFP tendons embedded in cemented soils using a specially developed pullout setup. Interface creep displacement responses for specimens with two different water–cement ratios were derived under various interface shear stress conditions. A modified Burgers model was developed to characterize the interface creep behavior by incorporating a time-dependent viscosity coefficient. This viscosity coefficient was calibrated using creep rate variation obtained experimentally. Regression fittings on a part of interface creep measurements were conducted to determine the value of the parameters of the interface creep model. Additional interface creep measurements were used to validate the applicability of the presented creep testing protocol and the effectiveness of the rheological modeling was validated.
Engineering-based finite-element approach to appraise reinforced concrete structures affected by alkali–aggregate reaction
Authors: Gorga Rodrigo Vilela , Sanchez Leandro FM , Martín-Pérez Beatriz , Noël Martin
Published: May 2021

Modelling the expansion and damage generated by alkali–aggregate reaction (AAR) in reinforced concrete structures is quite complex, yet necessary to obtain accurate predictions of the structural response of distressed members. Several AAR models have been developed to predict expansion and damage at the material (microscopic) or the structural (macroscopic) scales. However, those models tend to either neglect or overemphasise the critical physicochemical parameters of the reaction, which limits their applicability. Therefore, a new simple yet reliable finite-element approach is proposed to fill this gap. It accounts for the most important parameters affecting AAR through an engineering approach, without the need for non-technical guesses or to ‘fit’ model parameters. The proposed model is validated through the computational simulation of reinforced concrete specimens cast and monitored in the laboratory. Results show that AAR expansion was accurately simulated by accounting for the anisotropic (stress state dependent) nature of the reaction, mechanical properties deterioration and an analytical equation capable of representing AAR's free expansion. Next steps include validating the approach by simulating real structures and incorporating phenomena like leaching and combined distress mechanisms.
The Emergence of Forward Guidance As a Monetary Policy Tool
Authors: Nelson Edward
Published: May 2021

Forward guidance—the issuance by a central bank of public statements concerning the likely future settings of its policy instruments—is widely regarded as a new tool of monetary policy. The analysis in this paper shows that Federal Reserve policymakers from the 1950s onward actually accepted the premises of forward guidance: the notion that longer-term interest rates are key yields in aggregate spending decisions; and the proposition that indications of intentions regarding future short-term interest rate policy can affect longer-term rates. Over the same period, they were nevertheless wary about providing forward guidance regarding short-term interest rates, fearing that this could generate untoward market reactions or lock the Federal Open Market Committee into inappropriate rate settings. They concentrated on describing future policy in terms of achievement of economic objectives, with their commentary on interest-rate prospects usually confined to consideration of the longer-term factors affecting rates. Even in these years, however, there were infrequent occasions—notably in 1974 and 1982—when policymakers provided more explicit guidance regarding the path of short-term rates. In the 1990s, a consensus developed in U.S. policy circles that was more receptive toward the notion of guiding longer-term interest rates by providing indications of future FOMC actions. This consensus developed even before concerns about the lower bound on short-term rates became prevalent in U.S. policymaking. The new mindset, which stressed the stabilizing effects on the economy of communication of policy intentions, set the stage for the emergence of forward guidance as a monetary policy tool.
Implication of non-invasive archaeological methods in Brigetio in 2016
Authors: Bartus Dávid , Czajlik Zoltán , Rupnik László
Published: May 2021

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The first season of the excavation of Grd-i Tle. The Fortifications of Grd-i Tle (Field 1)
Authors: Dezső Tamás , Mordovin Maxim
Published: May 2021

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Pottery industry of the Aquincum military town
Authors: Vámos Péter
Published: May 2021

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Short report on the excavations in the Castle of Sátoraljaújhely in 2017
Authors: Hegyi Dóra , Szoboszlay Gergely
Published: May 2021

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Changes in Copper Age Networks of Connections in Light of the Material Excavated in the Danube-Tisza Interfluve
Authors: Rajna András
Published: May 2021

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Early Copper Age Graves from Polgár-Nagy-Kasziba
Authors: Solnay Eszter
Published: May 2021

Four Early Copper Age graves were excavated at Polgár-Nagy-Kasziba; two young children, and two adults – the latter including an elderly man and a woman. They all belong to the so-called Tiszapolgár culture. Thanks to numerous examinations – meaning anthropology, pathology or AMS dating –, much information were revealed about the four individuals, but they were never completely published. This paper analyses in details the whole grave cluster compared to the other graves from the Tiszapolgár culture, especially at the Polgár region. As a result, the personal biographies of the four individuals were created. However, it seems that all the four deceased were connected to high prestige in some way because of their age, gender, kinship or personal achievements.
Archaeological investigations on the Süttő plateau in 2018
Authors: Czajlik Zoltán , Novinszki-Groma Katalin , Rupnik László , Bödőcs András , Fejér Eszter , Jáky András , Puszta Sándor , Sörös Zsófia , Vass Bíborka , Czifra Szabolcs
Published: May 2021

The Early Iron Age site complex of Süttő is located on a loess plateau on the right bank of the Danube. After a long history of research of the Early Iron Age fortified settlement, tumulus groups and flat cemetery, between 2013–2017, some pioneer investigations were carried out using non-invasive methods. In 2018, members of the Institute of Archaeological Sciences of the Eötvös Loránd University and the Archaeological Heritage Protection Directorate of the Hungarian National Museum conducted an interdisciplinary research project (archaeological excavation, geophysical measurements, metal detecting survey, systematic field walking, geological drilling) on the plateau in the framework of the Interreg DTP Iron Age Danube project. As a result of intensive research, it became clear that aside from the Early Iron Age necropolis, the eastern part of the plateau was used as a burial site in the Early Bronze Age, as a settlement in the Late Bronze Age, and we must consider the existence of a Late Iron Age settlement in this area as well.
Late Roman Grave Groups in the Páty Cemetery
Authors: Ottományi Katalin
Published: May 2021

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The organization of ceramic production: A comparative analysis of typology and petrography at the Avar Age settlement of Daruszentmiklós (Hungary)
Authors: Kondé Zsófia , Kreiter Attila , Bajnóczi Bernadett , Tóth Mária , Viktorik Orsolya
Published: May 2021

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Bone and Antler Working in the Avar Cemetery of Bodajk
Authors: Pásztor Eszter , Tóth Zsuzsanna
Published: May 2021

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Material culture patterning as the source of the Avar power network, 8th century AD
Authors: Szenthe Gergely
Published: May 2021

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A későközépkori Révfalu állattartása
Authors: Csippán Péter
Published: May 2021

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Új szempontok a hun kori üstök kutatásához egy új magyarországi lelet tükrében
Authors: Masek Zsófia
Published: May 2021

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Előszó
Authors: Rácz Zsófia , Koncz István , Gulyás Bence
Published: May 2021

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Közösségi cselekvéssorok nyomai Domaszék-Börcsök-tanyán, a halomsíros kultúra településén - Traces of Communal Activities in the Tumulus Culture Settlement at Domaszék-Börcsök-tanya
Authors: Sánta Gábor
Published: May 2021

Domaszék-Börcsök-tanyán, az M5-ös autópályához kapcsolódó megelőző feltáráson a halomsíros kultúra nagy kiterjedésű településrészlete került elő. A jól elkülöníthető objektumcsoportokban cölöpszerkezetes és félig földbe mélyített házak, melléképületek nyomai, valamint gödrök és árkok kerültek napvilágra. A gazdasági egységek (háztartások) olyan régészeti jelenségeket is tartalmaztak, amelyek rítusokkal hozhatóak kapcsolatba. A 173. és 202. objektumban előkerült ép edények deponálásuk módja és elhelyezkedésük alapján „építési/alapítási áldozatként” értelmezhetőek, vagyis alapítási rituálé során kerülhettek földbe. Különösen igaz ez a 202. objektum esetében, amely egy cölöpszerkezetes ház belsejében került elő. Ezek a tárgyak a település korai vagy klasszikus fázisába (Reinecke BB1 vége/ BB2) sorolhatóak. Szintén építési áldozat vagy építéshez kapcsolódó közösségi esemény (lakoma?) emléke lehet a 246. cölöplyukban talált nagy mennyiségű kerámia, amely egy nagyobb méretű fazékhoz tartozhatott.
New Results from Megyaszó-Halom-oldal dűlő
Authors: Kósa Polett
Published: May 2021

An excavation was carried out by the colleagues of the Herman Ottó Museum in 2013 in the vicinity of Megyaszó (Borsod-Abaúj-Zemplén County). In the course of the excavation, a total of 10 cremation burials, a vessel connected to funerary practice, four storage or waste pits and part of a ditch were documented. In addition to the ceramic, bone and stone materials, some soil samples were also collected from the vessels during the fine dismantling of the urns. 12 samples originate from the different ceramics, while one from the middle of pit S4. Based on the results of the archaeological finds and the soil-samples’ analyses, it was attempted to outline some funerary practices of the Tumulus culture within a specific, narrow region.
Human Remains in the Central Area of a Bronze Age Multi-layered Settlement at Boconád-Alatka-puszta
Authors: Farkas Csilla , Marcsik Antónia , Hegyi Andrea
Published: May 2021

In 2014, we had the opportunity to study a Bronze Age multilayered settlement at Boconád-Alatka-puszta within the framework of a KEOP project. The site is located in the southern part of Heves County, northeast of Boconád. On the basis of archaeological research, the examined settlement layers can be connected to the Hatvan culture. In the central part of the settlement, surrounded by a ditch, human bones, i.e. fragments of skeletal bones and skulls of a child and an adult were recovered, concentrated in the same area, at the lowerpart of the plowed layer and the gray layer below it. Shell jewellery and a bone tool observed at the level ofthe bones were presumably the remnants of grave goods. It is certain that, taking advantage of the features of the place, the burials might take place after the abandonment of the settlement. Due to the extent of the disturbance, the results of scientific research may give the answer to who buried here and when.
A nemi identitás kifejezésének vizsgálata a Nyugat-Dunántúl kora és középső bronzkori csontvázas temetkezései körében - Study on the Representation of Gender Identity within the Early and Middle Bronze Age Inhumation Burials from Western Transdanubia
Authors: Melis Eszter
Published: May 2021

A sírok vizsgálatának előnye, hogy a nemi identitásokat és a hozzájuk kapcsolódó szerepeket több, régé-szetileg megfogható szinten van módunk vizsgálni: a biológiai nem, a sírba helyezés módjai (tájolás, fekte-tés), valamint a sírba helyezett tárgyak száma, típusa, anyaga, továbbá bizonyos esetekben a sírok utóla-gos felnyitásának jellegzetességei révén. Ezeket a jelenségeket elemeztük 10 lelőhely, a magyarországi koraés középső bronzkor átmenetére keltezhető (2100/2000–1600/1500 BC) Gáta-Wieselburg-kultúra több, mint150 csontvázas temetkezésén. A viszonylag töredékes leletanyag sírszintű adatfelvételén alapuló statisztikaielemzés révén a női és férfi temetkezések közt szigorú elkülönülést nem, hanem egyes mintázatokat tud-tunk megfigyelni. Ez a változatosság egyrészt a többféle temetkezési hagyomány jelenlétével magyarázhatóa Kárpát-medence Európa nyugatabbi területeivel határos régiójában, másrészt a nemi szerepek megváltozá-sával függhet össze a közép-európai bronzkor kezdetén.
Chemiluminescence of coelenterazine catalyzed by cyclodextrins as a luminescence reference standard for luminometers v1
Authors: Koksharov Misha
Published: May 2021

Bioluminescence and chemiluminescence are widely used in sensitive detection methods in biomedical sciences and analytical chemistry. A limitation of this type of measurements is that luminometers and platereaders do not directly quantify absolute quantum output of the reaction but report "relative luminescence units" (RLU) which are specific for a given instrument and reaction vessel design. At the same time, there are no simple and convenient luminescence reference standards that would have been universally available, so results (RLU measurements) reported by different instruments and laboratories usually cannot be directly compared. I have found that cyclodextrins - which are often used to solubilize coelenterazine (CTZ) analogs and other compounds in water buffers - catalyze a weak chemiluminescence of CTZ (and its analogs). Chemiluminescence of 20 µM CTZ in the presence of 10 mM β-cyclodextrin or 10 mM trimethyl-β-cyclodextrin in the 50 mM Na-phosphate buffer (pH 7.40) can be used as a simple and convenient reference standard to define and compare RLU readings obtained by different instruments. This system is composed of only small molecules of a defined chemical composition which are not expensive and available in high purity from multiple suppliers making this system convenient for the general use as a luminescence reference standard.
HTAPP_Sectioning formalin fixed paraffin embedded (FFPE) tissue samples for MIBI assays v1
Authors: Lako Ana , L Pfaff Kathleen , Jiang Sizun , Rovira-Clave Xavier , P Nolan Garry , Rodig Scott
Published: May 2021

This protocol describes how to section formalin-fixed paraffin-embedded (FFPE) tissue samples and mount the tissue sections on gold-coated glass slides for Multiplexed Ion Beam Imaging (MIBI) analysis. This protocol was used to section metastatic breast cancer core biopsies and resections, primary breast cancer resections and neuroblastoma resections for the Human Tumor Atlas Pilot Project (HTAPP).
HTAPP_Sectioning formalin fixed paraffin embedded (FFPE) tissue samples for hematoxylin and eosin (H&E) stained slides v1
Authors: Lako Ana , L Pfaff Kathleen , Rodig Scott
Published: May 2021

This protocol describes how to section formalin-fixed paraffin-embedded (FFPE) tissue samples to generate tissue sections to be stained with hematoxylin and eosin. FFPE tissue samples are the standard procedure for processing clinical diagnostic and research tissue samples. Once a tissue is fixed and embedded in a paraffin block, it is stable for years at room temperature. In a clinical setting, in order to produce a diagnostic tissue section, these blocks are sectioned using a microtome into thin (4-5 micrometer) sections and placed on glass microscope slides. Once slides are prepared, standard and disease-specific staining protocols are applied to different tissue sections, such as hematoxylin and eosin staining, allowing the pathologist to diagnosis and characterize diseased tissues. This protocol was used to section metastatic breast cancer core biopsies and resections, primary breast cancer resections and neuroblastoma resections for the Human Tumor Atlas Pilot Project (HTAPP).
Multistage Open-Shop-Problem: Schedules for N Tasks on K Machines with Different Technical Characteristics for an Arbitrary order of Tasks
Authors:   Aachen, Germany, Zack Yu. A.
Published: May 2021

The statements and mathematical models of the open — shop-problem are considered: performing N tasks on K machines with an arbitrary order of processing each task on all machines. Unlike most publications on solving this problem, the task posed is solved in a multi-stage formulation under the conditions of a sequential chain of sections and workshops of the enterprise, as well as in the presence of restrictions on the start and end times of tasks and the permissible operating times of machines. In addition, for scheduling systems of enterprises, it is extremely important to consider this task in a multi-stage setting, i.e. in a sequential chain of plots and workshops. The properties of admissible and optimal schedules, as well as algorithms of exact and approximate methods for solving these problems by successive optimization algorithms are investigated. At the early stages of solving the problem, the fact of incompatibility of the system of constraints of the task and the definition of a subset of tasks or resources, the time range of which should be expanded, is established. The described algorithms for solving the problem are illustrated by numerical examples.
DEĞİŞKENLER ARASI FARKLI İLİŞKİ TİPLERİNDE M5-PRIME VE DOĞRUSAL REGRESYON YÖNTEMLERİNİN KARŞILAŞTIRMASI
Authors: YILDIZ Hüseyin , YANDI Alperen
Published: May 2021

Bu çalışmada sosyal bilimlerde karşılaşılabilecek değişkenler arası ilişkilerin farklı tiplerinde M5-Prime ve doğrusal regresyon yöntemlerinin karşılaştırılması amaçlanmıştır. Bu doğrultuda farklı ilişki tipine sahip dört farklı veri seti üretilmiştir. Her bir veri seti türü için 3000 replikasyon yapılmıştır. Veri setlerinin üretiminde R programlama dili kullanılmıştır. Üretilen dört veri setinden ilkinde değişkenler arası ilişkinin yönü ve gücü sabit şekildedir. Diğer veri setlerinde ise bağımsız değişkenin farklı düzeylerinde, değişkenler arası ilişkiler de farklılaşmaktadır. İki farklı yöntemle yapılan analizlerde elde edilen korelasyon katsayısı (R), açıklanan varyans oranı (R2), ortalama mutlak hata, RMSE, göreceli mutlak hata değerleri incelenmiştir. Analizlerin tümü R programlama dilinin RWeka paketi kullanılmıştır. Analiz sonuçlarına göre dört farklı tipteki veri setinden ilkinde M5-Prime ve doğrusal regresyon yöntemleri eş değer sonuçlar vermiştir. İlişkinin yön ve gücünün değişkenlik göstermediği bu veri seti doğrusal regresyon içi en uygun yapıda olan veri setidir. Diğer üç tip veri seti için elde edilen sonuçlara göre ise ilişkinin açıklanması sürecinde M5-Prime yönteminin daha uygun sonuçlar verdiğine ulaşılmıştır. Bu bağlamda araştırmacıların değişkenler arası ilişkilerin çeşitlendiği durumlarda M5-Prime algoritmasını kullanması önerilebilir.
Microteaching: A Technique to Enhance English-as-a-Foreign Language Teacher Candidates’ Professional Learning
Authors: KOŞAR Gülten
Published: May 2021

Practicing teaching occupies a vital place in initial teacher training programs, and microteaching technique is implemented in teacher training to create an environment where teacher candidates (TCs) have a chance to transfer accumulated content knowledge into practice. This qualitative case research was undertaken to explore a) English-as-a-foreign language (EFL) teacher candidates’ (EFLTCs) perceptions of the contribution of the microteaching they either conducted or observed in Teaching English to Young Learners (TEYLs) II course to their professional learning, b) to what extent getting feedback on their microteaching from peers reinforces their professional learning, c) their conceptions of the contribution of reflecting on their own microteaching to their professional learning, and d) how they would redesign the way the microteaching process was gone through to better serve EFLTC professional learning. The findings demonstrated microteaching was viewed as effective at enhancing professional learning and the incongruence with respect to their views on the contribution of receiving peer feedback to their professional learning. Additionally, the findings indicated that engaging in self-evaluation prompted EFLTC professional learning and a set of suggestions were put forward to improve microteaching experience for EFLTCs. Even though the effect of microteaching on professional learning was evaluated in the context of initial EFL teacher training and TEYLs II course, the findings of this research could be thought-provoking for teacher educators from diverse disciplines already integrating or intending to integrate microteaching into their teaching.
Algılanan Sosyal Destek ve Dindarlık Düzeyinin Psikolojik Semptomlar Üzerindeki Etkisi
Authors: ŞENEL Ahmet Fatih , TOLAN Özlem , AYNA Yunus Emre
Published: May 2021

Mevcut çalışmada algılanan sosyal destek ve dindarlık düzeyi ile psikolojik belirtiler arasındaki ilişkinin incelenmesi amaçlanmıştır. Araştırmanın örneklemi Dicle Üniversitesi ve Fırat Üniversitesi’nde okumakta olan 250 (155 kadın / 95 erkek) üniversite öğrencisinden oluşmaktadır. Araştırmada veri toplama aracı olarak, Kişisel Bilgi Formu, Çok Boyutlu Algılanan Sosyal Destek Ölçeği, Dindarlık Ölçeği ve Kısa Semptom Envanteri kullanılmıştır. Araştırma sonucunda, elde edilen veriler, T-Test, Pearson Korelasyon Katsayısı ve Çoklu Regresyon Analizi yöntemleriyle analiz edilmiştir. Araştırma bulgularına göre, kadın katılımcıların erkek katılımcılara göre anksiyete, depresyon ve somatizasyon düzeylerinin daha yüksek olduğu belirlenmiştir. Algılanan sosyal destek ve psikolojik belirtiler arasındaki ilişkiler açısından; aileden algılanan sosyal desteğin en önemli sosyal destek kaynağı olduğu, aileden algılanan sosyal destek düzeyi ve özel bir insandan algılanan sosyal destek ile depresyon, anksiyete, olumsuz benlik, somatizayon, hostilite düzeyleri arasında negatif yönlü bir ilişki olduğu sonucuna ulaşılmıştır. Arkadaştan algılanan sosyal destek düzeyi ile depresyon ve olumsuz benlik düzeyleri arasında negatif yönlü bir ilişki olduğu, bunun yanı sıra, aileden algılanan sosyal desteğin, depresyon, anksiyete, olumsuz benlik, somatizasyon ve hostilite düzeylerinin en önemli yordayıcıları arasında olduğu belirlenmiştir. Özel bir insandan algılanan sosyal desteğin ise, anksiyete ve depresyon düzeyinin yordayıcılarından olduğu görülmüştür. Dindarlık düzeyi ile psikolojik belirti düzeyi arasında ise herhangi bir ilişki bulunamamıştır. Elde edilen sonuçlar ilgili alanyazın ışığı altında tartışılmaya çalışılmıştır.
Türkiye ve Singapur İlkokul Fen Bilimleri Öğretim Programlarının Karşılaştırılması
Authors: KARALI Yalçın , PALANCIOĞLU Ömer Varol , AYDEMİR Hasan
Published: May 2021

Teknolojik ve bilimsel gelişmeler büyük bir hızla meydana gelmekte ve küresel ölçekte yayılmaktadır. Değişen toplumsal ihtiyaçların karşılanması amacıyla yaşamın diğer alanlarında olduğu gibi eğitimde de değişimler meydana gelmektedir. Ülkeler bu gelişmelere ayak uydurmak için eğitim sistemlerini ve öğretim programlarını çağın gereksinimlerine göre yeniden düzenlemektedirler. Günümüzün gerektirdiği bilimsel bilgiyi ve teknolojiyi anlayan ve etkin şekilde kullanabilen bireyler yetiştirilmesinde fen bilimleri dersi önemli bir yer tutmaktadır. Bu bağlamda Türkiye Fen Öğretim Programı 2018 yılında yenilenerek uygulanmaya başlanmıştır. Ülkelerin öğretim programlarının karşılaştırılması, öğretim programlarının geliştirilmesi ve iyileştirmesi bakımından büyük önem arz etmektedir. Bu araştırmada 2018 yılında uygulamaya konulan Türkiye Fen Öğretim Programı ile fen bilimleri alanında uluslararası sınavlarda üst sıralarda yer alan Singapur’un İlkokul Fen Öğretim Programı karşılaştırılarak, benzerlik ve farklılıkların ortaya konulması amaçlanmıştır. Araştırmada nitel bir araştırma yöntemi olan “doküman incelemesi” kullanılmıştır. Ülkelerin fen öğretim programları amaç, içerik, değerler, beceri ve süreçler, öğrenme-öğretme süreçleri, ölçme ve değerlendirme başlıkları altında incelenmiştir. Araştırma sonucunda öğretim programlarında amaçlar, beceri ve süreçler, ölçme ve değerlendirme yaklaşımı bakımından benzerlikler, değerler ve içerik bakımından ise farklılıklar olduğu tespit edilmiştir.
The Impact of Parental Involvement and Expectations on Elementary School Students' Academic Achievement
Authors: LİNDBERG E.nihal , GÜVEN Pınar
Published: May 2021

This study is a correlational research that aims to define the relationship between parental involvement, parental expectations and elementary school students’ academic success. The research was conducted in …… province and in defining the sample of the study, it was aimed to ensure the diversity of socioeconomic level and sociocultural status. Totally, 420 parents have voluntarily participated in the research after the purpose of the study explained to them. The data was gathered with the Scale for School and Family Involvement in Elementary Schools, subscale of parents developed by Sheldon and Epstein’s (2007) which has been adapted into Turkish by Oğuz (2012). While there was only one dependent variable of the study (academic success), there are six independent variables (parents’ educational status, household income, parents’ gender, child’s gender, parental involvement, parental expectation).

Within the research, independent samples t-test and Chi-square independence test were used. Moreover, logistic regression analysis was performed in order to define the power of predictability of the variables. Results showed that, there are not significantly statistical relations between academic success and parents’ gender, children’s gender, parental involvement at school. On the other hand, it has been concluded that parents’ educational status, household income, parental expectation and parental involvement at home are significantly correlated with children’s academic success. It was seen that the most important predictor of a child’s academic success is parental expectations. Based on the results, recommendations were developed for parents, schools and researchers.
DEVELOPMENT OF TOURIST ORIENTED FARMS OF LVIV REGION
Authors: Tsymbala Olga , Dorosh Julia
Published: May 2021

Purpose. Characterize the development trends of the network of tourist-oriented farms which operate within the Lviv region. Systematize information about their specialization and key areas of work, identify and describe the main groups of farms in Lviv region in view of the priority of their activities, as well as reveal the features of the tourist offers for visitors and tourist groups.

Methods. The research used the method of analysis to study the literature and information sources on the research topic; the method of scientific systematization is applied to the selection of tourist oriented farms of Lviv region and the characteristic of key areas of their activities; the cartographic method allowed to visualize the location of the studied farms within the region by forming a map of Lviv region with the indication of settlements where the tourist-oriented farms operate.

Results. The role, place and significance of tourist-oriented farms for the development of rural tourism are outlined. The farms of Lviv region that are involved in the tourism sector, focused on the reception of tourists and presented in the information space are highlighted. The dominant group of tourist-oriented farms in Lviv region is formed by those farms that are engaged in the cultivation of cows, goats, sheep, specializing in the manufacture and sale of dairy products, especially various types of cheese. At the same time, a number of cheese factories have been formed within the region, operating on the basis of purchased raw materials. A separate group includes honey eco-farms, berry farms, snail farms, ostriches, etc. Systematized data on the specifics, features of the development of the studied farms are presented in the table, the main products and tourist services they offer on the market of tourist services are highlighted. A map of Lviv region with a presentation of the geography of location of tourist-oriented farms within the region are developed.

The scientific novelty of the obtained results lies in the generalization of information about the existing tourist-oriented farms of Lviv region and the analysis of their offer on the tourist market.

The practical significance lies in the systematization of relevant information about the current state of development of tourist oriented farms in Lviv region. The obtained scientific results can be used in the process of forming tours in Lviv region as well as in the educational process in the training of future specialists in the specialty «Tourism».
Non-drug technologies in the prevention of arterial hypertension in civil aviation dispatchers
Authors: Korolev Denis V. , Yamerskov Vladimir V.
Published: May 2021

Purpose. In recent decades, there has been an increased interest in the study of the prevention of cardiovascular diseases in civil aviation dispatchers, for whom professional stress is one of the leading risk factors in the formation of arterial hypertension in the workplace.

Material and methods. The article presents the survey data of 120 civil aviation dispatchers, who, in order to reduce the prevention of the development of arterial hypertension, underwent a complex of combined color-light-and psycho-correctional music therapy.

Conclusion. As a result of the study, it was proved that the combined color-light therapy technology and psycho-correctional music therapy have a pronounced vasocorrecting effect, which is confirmed by a decrease in systolic and diastolic pressure and heart rate to the level of healthy individuals in the studied contingent of air traffic controllers.
COVID 19’da sezaryende anestezi yönetimi
Authors: TÜRKTAN Mediha , BERK Numan , SUCU Mete
Published: May 2021

COVID-19, Aralık 2019’dan itibaren Çin’in Wuhan bölgesinden tüm dünyaya yayılarak pandemi oluşturan yeni tip koronavirustür. Gebe hastalarda diğer coronavirus enfeksiyonları (Middle East Respiratory Syndrome=MERS-CoV, Severe Acute Respiratory Syndrome=SARS-CoV) olumsuz sonuçlarla seyrettiğinden COVID-19 pozitif gebe hastalar endişeleri arttırmaktadır. Bu olgu sunumunda, kliniğimizin ilk COVID-19 pozitif hastası olan 36 haftalık gebenin sezaryen anestezisi yönetimi ele alınmıştır.
The New England earthquake of January 7, 1925
Authors: Porter William W.
Published: May 2021

An earthquake occurred on the morning of January 7, 1925. It was felt in eastern Massachusetts, and adjacent parts of Rhode Island, New Hampshire, and Maine. Distance from Harvard seismograph forty-five kilometers. Epicentral area thought to be near Cape Ann. Not felt at sea. Closely related to an earthquake area in northeast Massachusetts. Radius of periphery of disturbed area from epicentral area,—maximum seventy-five miles, minimum fifty miles. Maximum intensity barely V, Rossi-Forel Scale.
A tilt-compensation seismometer1
Authors: McComb H. E.
Published: May 2021

A tilt-compensation seismograph utilizing viscous coupling between the steady mass and the multiplying lever has been developed. The method of application of the viscous coupling differs from that described by Romberg,2 but the principle of continuous compensation for static tilt is practically the same.
Epicentral time and surface structure determined for the Tango earthquake, Japan, March 7, 1927
Authors: Hodgson Ernest A.
Published: May 2021

XIV. Summary

It is concluded that: The major energy of the Tango earthquake, causing the elastic waves which registered on seismographs all the world over, was released at 9h 27m 44s, G.M.T., March 7, 1927, from a single focus about 12 kilometers below the epicenter, which lay some 7 kilometers southwest of the Gomura fault and about 12.5 kilometers northwest of the Yamada fault, that is to say at 35° 36′.4 N., 134° 58′.2 E., in a surface stratum only some 16 kilometers thick, in which the velocity of the longitudinal wave has the unusually high average value of 6.3 kilometers per second, the velocity for the same wave below the discontinuity being 7.75 kilometers per second and about the inner edge of the mantle at its contact with the core 12.4 kilometers per second. The P- and S-curves of the previous paper are to be subjected to a constant correction of — 11 seconds in the light of the foregoing results, which indicate an epicentral time of 9h 27m 46s instead of the tentatively assumed 9h 27m 35s. Arguments are advanced for believing the corrected P-curve for the Tango earthquake to be reasonably well established except for a range of several degrees on each side of an epicentral distance of 20°.
Remarks on the diurnal variation of earthquake occurrence with reference to the Helena, Montana, swarm*
Authors: Landsberg H.
Published: May 2021

From the observations of the Helena, Montana, swarm earthquakes it is deduced that a maximum of earthquakes of the swarm type occurs in the early morning hours of local time and that there exists a distribution of about 42 per cent of the shocks in the daytime, and 58 per cent in the nighttime. This is confirmed by material from earthquakes from widely different seismic periods and regions.
Materials for the study of deep-focus earthquakes*
Authors: Gutenberg B. , Richter C. F.
Published: May 2021

Summary (Abstract)

Travel times of normal earthquakes are made the basis for calculated travel times for shocks at depths down to 800 km. These are presented in tabular form, together with certain auxiliary data. Theoretical discussion is given for the critical distances at which pP and PP, sP and SP, etc., coincide, and below which these phases should not occur. These distances are not focal points (caustics). Methods are given for determining epicenter, depth, and origin time, and are applied to a selected group of shocks. The results of different methods agree very well with one another and with the calculated travel-time data. A preliminary report is given on certain characteristics of the shocks studied. The mechanism of deep-focus earthquakes is discussed briefly, and it is concluded that normal and deep-focus earthquakes are probably brought about by the same forces.
The earthquake of November 14, 1937*
Authors: Lynch Joseph
Published: May 2021

In this preliminary paper on the earthquake of November 14, 1937, the S and SKS curves of the quake (h = 250 km.) are compared with those of Gutenberg and Brunner for the same depth. The S curve of both Gutenberg and Brunner is confirmed from 50° to 100° within a few seconds. The SKS curve of Gutenberg is confirmed from 85° to 105° within a few seconds, while that of Brunner over the same range would seem to have an average error of 13 seconds. From 105° to 115° Brunner's curve is in fair agreement with that of the author, while Gutenberg's diverges rapidly after 105° to a difference of 14 seconds at 115°. The SKKS-SKS interval decreases with increasing distance between 103° and 107°.
Ground vibrations near dynamite blasts*
Authors: Leet L. Don
Published: May 2021

In general, then, the concentrated energy at the source is actually divided among the principal wave types, which are there added together. Within very short distances, however, these wave types begin to separate because of their different velocities. There are thus two factors working to reduce the maximum shaking to which the ground is subjected. One is the natural decay of each wave with distance, as internal friction exhausts its original energy. The other, which is usually the dominating effect at short distances, is this stringing out of the wave types, each carrying its portion of the initial energy, until there is no longer any concentration where two or more types join forces to produce additive amplitudes.
Seismic activity in the Imperial Valley, California*
Authors: Wood Harry O.
Published: May 2021

Following a brief résumé of the historical record of the occupation of the Imperial Valley by people, and of the earthquakes reported felt, there are given estimates of the number of such shocks which are judged to pertain to the immediate region for the intervals (a) 1769 to June 10, 1902, and (b) June 10, 1902, through May, 1940; also the number of such shocks instrumentally recorded but not reported felt during the interval October, 1926, through May, 1940, with a few brief interruptions. These lists make it clear that the Valley region has long been markedly active, but not so greatly so as some similar districts elsewhere. Dates, and brief descriptions, are given for a number of the more important shocks, and the effect of the May 18, 1940, shock is appraised briefly.
Instrumental study of the New Hampshire earthquakes of December, 1940*
Authors: Leet L. Don , Linehan D.
Published: May 2021

Astudy of original records and bulletin readings for two strong earthquakes in the Ossipee Mountains district of southeastern New Hampshire in December, 1940, gave for both

φ = 43 ° 50 ′ N λ = 71 ° 1 7 ′ W

S started from a depth of approximately 35 km., and P at the same time from a depth of 15 km. The second shock was multiple. Times at the focus were:

1940 December 20 d 07 h 27 m 26 s 24 d 13 h 43 m 45 s 47 s 57 s

The velocities observed, in km/sec., were: P1+26.44S1+23.82P37.30S34.02Pn8.44Sn4.43

Mechanism at the focus probably differed from that of earthquakes which involve surface faulting, but is not discussed in detail in this paper. First motion from the second earthquake was reversed from that of the first at near-by stations. No foreshocks preceded the first earthquake; there was a small one just before the second; and there were only ten after-shocks, the last one occurring on February 12, 1941.

The Richter magnitude was at least 6 for the first and slightly greater for the second main shock. From this the energy can be computed as 1020 ergs or 7.4 × 1012 foot-pounds. This ranks both shocks as potentially destructive. They were felt to a distance of 350 miles, which means an area of potential perceptibility of the order of 385,000 square miles.
Microseisms at Berkeley and Surf on near-by coasts*
Authors: Byerly Perry
Published: May 2021

Summary and Conclusions

The amplitudes of microseisms recorded at Berkeley correlate over six-months and yearly periods with surf strength on near-by beaches quite as well as the observations of surf strength at adjacent stations correlate with each other, all the correlation ratios being between 0.53 and 0.58. During a winter month the correlation between microseisms and surf rose to 0.81. A consideration of energies leads to the conclusion that the energy of average large microseisms at Berkeley can be explained as due to surf on near-by beaches if about 10−7 of the potential energy of probable-sized deep-water waves is eventually transformed into elastic Rayleigh waves at the near-by beaches.

Not all microseisms at Berkeley are caused by near-by surf, but many may very well be. It is possible to pick periods when one is large and the other is not, and vice versa. It is also possible to find times when very heavy seas and very large microseisms begin together in a most conspicuous fashion.