The Montessori Approach as a Model of Personalized Instruction

I present a brief overview of the key elements of personalized learning and Montessori education, a related pedagogical approach, aiming to examine common theoretical principles and key elements. I discuss the common features of personalized instruction and the Montessori approach of education. Both personalized instruction and the Montessori approach stand firmly on a constructivist paradigm and share many philosophical and theoretical principles. Research has shown that Montessori education is one of the most visible models that incorporates numerous aspects of personalized instruction and shares many common elements with personalized learning. This research has shown that, while personalized instruction also suggests many strategies for implementation of the concept, Montessori education actualizes the principles of personalized learning

Political Geography into Geopolitics – The Geopolitics of Decline

This article is dealing with the reasons for usage and development of Geopolitics in Germany between the two World wars. Hitler's ideas for German expansion are viewed as influenced by German geopolitics main figures and their ideas. German geopolitics in this work is represented as an attempt of strategic, valid and consistent manner of assessing its major international geopolitical aspirations. It was not only about ensuring survival in an extremely volatile geographic location but attempted to affect its immediate neighbors as well as the alignment of nations throughout the world's regions. The practical outcomes of imperial, geostrategic, and Nazi foreign policy plans were imminent. Hitler's ideas stemed from his conception of racial struggle and the natural consequences of the need for German expansion. Germany desired a more equitable distribution of wealth and territory within the international system.For many of the greatest empires, geography is often the destiny, and Germany at this critical and turbulent period of time was not an exception

A RBF-Based local collocation method for modelling thermomechanical phenomena during DC casting of aluminium billets

In this work, the local radial basis function collocation method is applied to the thermoelasticity with intention to model the low-frequency electromagnetic direct-chill casting process of aluminium billets. The devised thermoelastic model is coupled with the heat transport model for the DC casting process and preliminary results on the stress state are presented. The effect of the casting speed and the application of the electromagnetic field on the principal stresses is presented

Application of local RBF collocation method to prediction of mechanics-related phenomena during dc casting of aluminium alloys

A meshless local collocation method using radial basis functions (LRBFCM) has been developed to model the thermomechanical phenomena during the process of DC casting. The model uses elastic-viscoplastic constitutive relations to describe the inhomogeneous material below the coherency isotherm. It is coupled with the results of the fluid flow model, which is used to determine the computational domain and to calculate the thermal strain

Simulation of macrosegregation in low-frequency electromagnetic casting by a meshless method

The novel use of a meshless numerical approach for simulation of macrosegregation in the low-frequency electromagnetic casting is presented along with the analysis of the simulation results. The casting model includes a coupled set of mass, momentum, energy, and species conservation equations. Lorentz force is computed with the induction equation and used in the solidification model. The coupled physical model is solved in cylindrical coordinate system and can be used to model aluminium alloy billet production. Explicit scheme is used for the temporal discretization, while the meshless diffuse approximate method is used for the spatial discretization. The method is localized with subdomains containing 14 local nodes. The Gaussian weight is used in the weighted least squares minimization. Furthermore, the Gaussian is shifted upstream, when an upwind effect is required in order to increase the convection stability. Direct chill casting under the influence of electromagnetic field (EMF) is simulated for various electric amplitudes and currents. The material properties of Al-5.25wt%Cu are used. The casting parameters and material properties are constant in all presented simulations, while EMF is turned off in some cases in order to study its effect on solidification. The results show that EMF has a large effect on the melt-flow and solidification. Oscillatory, instead of a steadystate, solution is obtained in case of certain geometries in EMF casting. The effect of EMF is hard to predict without the use of numerical simulations, due to strong coupled effects of casting geometry, casting parameters, and EMF parameters. This shows the need for numerical modelling of this strongly coupled problem for its better understanding

Usando um enfoque bibliométrico para examinar o conceito de turismo macabro

AbstractObjective: The current paper attempts to examine the dark tourism concept via a bibliometric approach. For this purpose, 155 articles published on dark tourism from 1990 to 2020 were obtained from the Web of Science database (WoS). Method: We utilized from VosViewer software to analyze the obtained data. We chose a total of 10 parameters to be analyzed.Originality/Relevance: Although there are some studies to review dark tourism, unlike other studies, this paper created bibliometric maps of dark tourism by using the Vosviewer software. Main results: As a result of the analysis, it was found that the dark tourism literature is growing day by day according to the above parameters.Theoretical/methodological contributions: This paper has identified major themes of dark tourism and prominent studies related to dark tourism. ResumenObjetivo: Este artículo intenta presentar una revisión del concepto de turismo oscuro a través de un enfoque bibliométrico. Para ello, se obtuvieron 155 artículos publicados sobre turismo oscuro desde 1990 hasta 2020 de la base de datos Web of Science (WoS).Método: Se utilizó el software VosViewer para analizar los datos obtenidos. Un total de 10 parámetros tales como los autores, países, organizaciones más contribuyentes, los artículos más citados, el número anual de publicaciones, la co-ocurrencia de palabras clave de autor de artículos, el análisis de co-citas de autores y revistas, el acoplamiento bibliográfico de países y autores fueron elegidos para ser analizados. Originalidad/Relevancia: Aunque existen algunos estudios para revisar el concepto de turismo oscuro, a diferencia de otros estudios, en este artículo se crearon mapas bibliométricos de turismo oscuro utilizando el software Vosviewer.Resultados principales: Como resultado del análisis, se determinó que la literatura sobre turismo oscuro crece día a día de acuerdo con los parámetros anteriores.Contribuciones teóricas/metodológicas: Este documento ha identificado los principales temas del turismo oscuro y estudios destacados relacionados con el turismo oscuro. ResumoObjetivo: Este artigo tenta apresentar uma revisão do conceito de turismo negro por meio de uma abordagem bibliométrica. Para tanto, 155 artigos publicados sobre turismo negro de 1990 a 2020 foram obtidos na base de dados Web of Science (WoS).Método: O software VosViewer foi utilizado para analisar os dados obtidos. Um total de 10 parâmetros, como os autores mais contribuintes, países, organizações, os artigos mais citados, o número anual de publicações, a co-ocorrência de palavras-chave de autores de artigos, a análise de co-citação de autores e periódicos, o acoplamento bibliográfico de países e autores foram escolhidos para serem analisados.Originalidade/Relevância: Embora existam alguns estudos para revisar o conceito de turismo negro, ao contrário de outros estudos, neste artigo, mapas bibliométricos de turismo negro foram criados usando o software Vosviewer.Resultados principais: Como resultado da análise, foi determinado que a literatura do turismo negro está crescendo dia a dia de acordo com os parâmetros acima.Contribuições teóricas/metodológicas: Este artigo identificou os principais temas do turismo negro e estudos proeminentes relacionados ao turismo negro.

Meshless modelling of microstructure evolution in the continuous casting of steel

A two-dimensional two-scale slice model has been developed to predict the microstructure evolution in the solidifying strand with an arbitrary cross section geometry during continuous casting of steel. The enthalpy equation is solved at the macro level by using meshless local radial basis function collocation method (LRBFCM) based on multiquadrics for spatial discretization and explicit Euler scheme for temporal discretization. The temperature and the solid fraction in computational nodes are calculated by using a continuum model formulation while the lever rule is used as the supplementary microsegregation relation. The temperature field is interpolated to the micro level by using LRBFCM. At the micro level, the normal distribution and Kurz-Giovanola-Trivedi model are proposed to determine temperature dependent nucleation rate and grain growth velocity, respectively. Meshless point-automata algorithm is applied to implement nucleation and grain growth equations. Several examples of computations of the strand with different cross-sections are shown

State of the Art of the Marine Non-Indigenous Flora and Fauna in Slovenia

Authors provide the state of knowledge on marine non-indigenous species in waters off Slovenia. According to published records and authors unpublished data at least 15 non-indigenous species were up to date recorded in the Slovenian part of the Adriatic sea. Eleven species were considered as established and four species as casual. The vectors of introduction are various, comprising Lessepsian migration, mariculture and shipping. The majority of non-indigenous taxa were recorded in the mediolittoral belt and coastal lagoons. The low number of non-indigenous species so far recorded in the Slovenian part of the Adriatic sea could be explained by various factors. Among them, the most reasonable are the lack of scientific attention, the small proportion of Slovenian Sea and low winter temperatures, which represents a physiological barrier for the survival of newcomers. The number of recorded species is far from being satisfactory. Therefore, we expect that the list of non-indigenous species will be enlarged in the nearby future

Residual phase noise measurements of the input section in a receiver

If not designed properly, the input section of an analog down-converter can introduce phase noise that can prevail over other noise sources in the system. In the paper we present residual phase noise measurements of a simplified input section of a classical receiver that is composed of various commercially available mixers and driven by an LO amplifier