bluuebunny/crossref_metadata_2025 huggingface dataset:
Piezoelectric Energy Harvesting Controlled with an IGBT H-Bridge and Bidirectional Buck–Boost for Low-Cost 4G Devices
Authors: Teso-Fz-Betoño Daniel , Aramendia Iñigo , Martinez-Rico Jon , Fernandez-Gamiz Unai , Zulueta Ekaitz
Published: December 2020

In this work, a semi-submersible piezoelectric energy harvester was used to provide power to a low-cost 4G Arduino shield. Initially, unsteady Reynolds averaged Navier–Stokes (URANS)-based simulations were conducted to investigate the dynamic forces under different conditions. An adaptive differential evolution (JADE) multivariable optimization algorithm was used for the power calculations. After JADE optimization, a communication cycle was designed. The shield works in two modes: communication and power saving. The power-saving mode is active for 285 s and the communication mode for 15 s. This cycle consumes a determinate amount of power, which requires a specific piezoelectric material and, in some situations, an extra power device, such as a battery or supercapacitor. The piezoelectric device is able to work at the maximum power point using a specific Insulated Gate Bipolar Transistor (IGBT) H-bridge controlled with a relay action. For the extra power supply, a bidirectional buck–boost converter was implemented to flow the energy in both directions. This electronic circuit was simulated to compare the extra power supply and the piezoelectric energy harvester behavior. Promising results were obtained in terms of power production and energy storage. We used 0.59, 0.67 and 1.69 W piezoelectric devices to provide the energy for the 4G shield and extra power supply device.
Cross-Frequency Power-Power Coupling Analysis: A Useful Cross-Frequency Measure to Classify ICA-Decomposed EEG
Authors: Thammasan Nattapong , Miyakoshi Makoto
Published: December 2020

Magneto-/Electro-encephalography (M/EEG) commonly uses (fast) Fourier transformation to compute power spectral density (PSD). However, the resulting PSD plot lacks temporal information, making interpretation sometimes equivocal. For example, consider two different PSDs: a central parietal EEG PSD with twin peaks at 10 Hz and 20 Hz and a central parietal PSD with twin peaks at 10 Hz and 50 Hz. We can assume the first PSD shows a mu rhythm and the second harmonic; however, the latter PSD likely shows an alpha peak and an independent line noise. Without prior knowledge, however, the PSD alone cannot distinguish between the two cases. To address this limitation of PSD, we propose using cross-frequency power–power coupling (PPC) as a post-processing of independent component (IC) analysis (ICA) to distinguish brain components from muscle and environmental artifact sources. We conclude that post-ICA PPC analysis could serve as a new data-driven EEG classifier in M/EEG studies. For the reader’s convenience, we offer a brief literature overview on the disparate use of PPC. The proposed cross-frequency power–power coupling analysis toolbox (PowPowCAT) is a free, open-source toolbox, which works as an EEGLAB extension.
Analysis of Conductance Probes for Two-Phase Flow and Holdup Applications
Authors: Muñoz-Cobo José-Luis , Rivera Yago , Berna Cesar , Escrivá Alberto
Published: December 2020

In this paper we perform an analysis of the conductance probes used in two-phase flow applications especially for two-phase flow tomography of annular flow, to measure the waves produced in the interface with different boundary conditions without perturbing the flow, and in addition we examine the holdup applications as measuring the average void fraction in a given region. The method used to obtain the detector conductance between the electrodes is to solve analytically the generalized Laplace equation in 3D with the boundary conditions of the problem, and then to obtain the average potential difference between the detector electrodes. Then, dividing the current intensity circulating between the emitter and the receiver electrodes by the average potential difference yields the probe conductance, which depends on the geometric and physical characteristics of the measured system and the probe. This conductance is then non-dimensionalized by dividing by the conductance of the pipe full of water. In this way a set of analytical expression have been obtained for the conductance of two-plate sensors with different geometries and locations. We have performed an exhaustive comparison of the results obtained using the equations deduced in this paper with the experimental data from several authors in different cases with very good agreement. In some cases when the distribution of bubbles is not homogeneous, we have explored the different alternatives of the effective medium theory (EMT) in terms of the self-consistent EMT and the non-consistent EMT.
Methodological Proposals for the Development of Services in a Smart City: A Literature Review
Authors: Serey Joel , Quezada Luis , Alfaro Miguel , Fuertes Guillermo , Ternero Rodrigo , Gatica Gustavo , Gutierrez Sebastian , Vargas Manuel
Published: December 2020

This literature review analyzes and classifies methodological contributions that answer the different challenges faced by smart cities. This study identifies city services that require the use of artificial intelligence (AI); which they refer to as AI application areas. These areas are classified and evaluated, taking into account the five proposed domains (government, environment, urban settlements, social assistance, and economy). In this review, 168 relevant studies were identified that make methodological contributions to the development of smart cities and 66 AI application areas, along with the main challenges associated with their implementation. The review methodology was content analysis of scientific literature published between 2013 and 2020. The basic terminology of this study corresponds to AI, the internet of things, and smart cities. In total, 196 references were used. Finally, the methodologies that propose optimization frameworks and analytical frameworks, the type of conceptual research, the literature published in 2018, the urban settlement macro-categories, and the group city monitoring–smart electric grid, make the greater contributions.
Optimizing Battery Energy Storage System Data in the Presence of Wind Power Plants: A Comparative Study on Evolutionary Algorithms
Authors: Sakipour Ramin , Abdi Hamdi
Published: December 2020

This study deals with the optimization of battery energy storage system (BESS) data in terms of significant characteristics of life and efficiency, and their positive impacts on power system efficiency in the presence of wind power plants in a microgrid. To this end, a permanent magnet synchronous generator (PMSG) is used to convert the wind energy by connecting a three-phase dynamic load to the grid. The main novelty of the proposed method is designing a smart backup battery branch to improve the efficiency of the wind farm by maintaining the operating constraints even during the occurrence of harsh faults in the generation section. Additionally, for the first time, the characteristics of the BESS are optimized using nine evolutionary algorithms, including the genetic algorithm (GA), teaching–learning-based optimization (TLBO), particle swarm optimization (PSO), gravitational search algorithm (GSA), artificial bee colony (ABC), differential evolution (DE), grey wolf optimizer (GWO), moth–flame optimization algorithm (MFO), and sine cosine algorithm (SCA), and the results are compared with each other. The simulation results of a case study confirm the robustness of the proposed control strategy for the BESS.
Connection of Solar Activities and Forest Fires in 2018: Events in the USA (California), Portugal and Greece
Authors: Vyklyuk Yaroslav , Radovanović Milan M. , Stanojević Gorica , Petrović Marko D. , Ćurčić Nina B. , Milenković Milan , Malinović Milićević Slavica , Milovanović Boško , Yamashkin Anatoliy A. , Milanović Pešić Ana , Lukić Dobrila , Gajić Mirjana
Published: December 2020

The impact of solar activity on environmental processes is difficult to understand and complex for empirical modeling. This study aimed to establish forecast models of the meteorological conditions in the forest fire areas based on the solar activity parameters applying the neural networks approach. During July and August 2018, severe forest fires simultaneously occurred in the State of California (USA), Portugal, and Greece. Air temperature and humidity data together with solar parameters (integral flux of solar protons, differential electron flux and proton flux, solar wind plasma parameters, and solar radio flux at 10.7 cm data) were used in long short-term memory (LSTM) recurrent neural network ensembles. It is found that solar activity mostly affects the humidity for two stations in California and Portugal (an increase in the integral flux of solar protons of > 30 MeV by 10% increases the humidity by 3.25%, 1.65%, and 1.57%, respectively). Furthermore, an increase in air temperature of 10% increases the humidity by 2.55%, 2.01%, and 0.26%, respectively. It is shown that temperature is less sensitive to changes in solar parameters but depends on previous conditions (previous increase of 10% increases the current temperature by 0.75%, 0.34%, and 0.33%, respectively). Humidity in Greece is mostly impacted by solar flux F10.7 cm and previous values of humidity. An increase in these factors by 10% will lead to a decrease in the humidity of 3.89% or an increase of 1.31%, while air temperature mostly depends on ion temperature. If this factor increases by 10%, it will lead to air temperature rising by 0.42%.
A Multitier Approach to Estimating the Energy Efficiency of Urban Passenger Mobility
Authors: Gonçalves Daniel Neves Schmitz , Bandeira Renata Albergaria de Mello , Costa Mariane Gonzalez da , Goes George Vasconcelos , Assis Tássia Faria de , D’Agosto Márcio de Almeida , Almeida Isabela Rocha Pombo Lessi de , Freitas Rodrigo Rodrigues de
Published: December 2020

As society has experiences new modes of mobility in recent years, cities have planned to increase their energy efficiency as a way of reducing environmental impacts and promoting economic development. However, governments face difficulties in establishing mechanisms to determine the best actions in the management of urban mobility regarding energy efficiency and to elaborate a ranking of cities based on energy efficiency in order to better allocate resources. This is due to the complex nature of obtaining a wide range of activity and energy data from a single municipality, especially in data-scarce regions. This paper develops and applies a model for estimating the energy efficiency of urban mobility that is applicable to different contexts and backgrounds. The main contribution of the article is the use of a multitier approach to compare and adjust outputs, considering different transport configurations and data sets. The results indicate that variations in vehicle occupancy and individual motorized transport rates have a significant impact on energy efficiency, which reached 0.70 passenger-kilometers/MJ in Sorocaba, Brazil. However, as the use of electric vehicles increases in this city, this scenario is expected to change. Additionally, the method has been proven to be an important mechanism for benchmarking purposes and for the decision-making process for transport investments.
Thermodynamic Analysis and Comparison of Two Small-Scale Solar Electrical Power Generation Systems
Authors: Li Junfen , Guo Hang , Meng Qingpeng , Wu Yuting , Ye Fang , Ma Chongfang
Published: December 2020

In this study, two schemes of solar electrical power generation are designed and compared according to solar collection area minimization. The one comprises the parabolic trough collector, dual-tank of molten salt heat storage, and Organic Rankine cycle. The other consists of photovoltaic cell, polymer electrolyte membrane water electrolyzer, and polymer electrolyte membrane fuel cell. The effects of irradiation value, environmental temperature, and energy storage type on thermodynamic performance were investigated. The results indicated that the solar irradiation value had a more obvious effect on the PV (photovoltaic) cell performance than environmental temperature, and the PTC (parabolic trough concentrator) performance was improved with the increases of solar irradiation value and environmental temperature. The environmental temperature effect was negligible; however, the influence of irradiation value was obvious. Irradiation value had a positive effect on the former system, whereas it demonstrated the opposite for the latter. The latter system had much lower efficiency than the former, due to the low conversion efficiency between hydrogen energy and electrical energy in the polymer electrolyte membrane water electrolyzer and fuel cell. Stated thus, the latter system is appropriate for the power generation system with non-energy storage, and the former system is promising in the power generation system with energy storage.
Green Innovation Risk Identification of the Manufacturing Industry under Global Value Chain Based on Grounded Theory
Authors: Sun Yingying , Wu Lei , Yin Shi
Published: December 2020

Green innovation in the manufacturing industry has been widely recognized. Although green innovation can create economic, social, and ecological value, it is also a high-risk activity. We must facilitate and protect the value of green innovation through scientific and systematic management of the risks generated in the process of innovation. The primary task of risk management is risk identification. Therefore, based on the perspective of the global value chain, this paper identifies the risk of green innovation in the manufacturing industry using the research method of grounded theory. By examining the interview records of 25 manufacturing enterprise executives, we summarize and identify the four major risks and 31 risk factors of green innovation. The empirical results of this paper are as follows: (1) the green innovation risks of the manufacturing industry under the global value chain include green R&D risks under the global value chain; manufacturing risks under the global value chain; marketing risks under the global value chain; service risks under the global value chain. (2) Green R&D risks under the global value chain include seven risk factors; green manufacturing risks under the global value chain include 10 risk factors; green marketing risks under the global value chain include nine risk factors; green service risks under the global value chain include five risk factors.
Citizen Science Monitoring for Sustainable Development Goal Indicator 6.3.2 in England and Zambia
Authors: Bishop Isabel J. , Warner Stuart , van Noordwijk Toos C. G. E. , Nyoni Frank C. , Loiselle Steven
Published: December 2020

Citizen science has the potential to support the delivery of the United Nations Sustainable Development Goals (SDGs) through its integration into national monitoring schemes. In this study, we explored the opportunities and biases of citizen science (CS) data when used either as a primary or secondary source for SDG 6.3.2 reporting. We used data from waterbodies with both CS and regulatory monitoring in England and Zambia to explore their biases and complementarity. A comparative analysis of regulatory and CS data provided key information on appropriate sampling frequency, site selection, and measurement parameters necessary for robust SDG reporting. The results showed elevated agreement for pass/fail ratios and indicator scores for English waterbodies (80%) and demonstrated that CS data improved for granularity and spatial coverage for SDG indicator scoring, even when extensive statutory monitoring programs were present. In Zambia, management authorities are actively using citizen science projects to increase spatial and temporal coverage for SDG reporting. Our results indicate that design considerations for SDG focused citizen science can address local needs and provide a more representative indicator of the state of a nation’s freshwater ecosystems for international reporting requirements.
Multi-Temporal Mapping of Soil Total Nitrogen Using Google Earth Engine across the Shandong Province of China
Authors: Xiao Wu , Chen Wenqi , He Tingting , Ruan Linlin , Guo Jiwang
Published: December 2020

Nitrogen plays an important role in improving soil productivity and maintaining ecosystem stability. Mapping and monitoring the soil total nitrogen (STN) content is the basis for modern soil management. The Google Earth Engine (GEE) platform covers a wide range of available satellite remote sensing datasets and can process massive data calculations. We collected 6823 soil samples in Shandong Province, China. The random forest (RF) algorithm predicted the STN content in croplands from 2002 to 2016 in Shandong Province, China on the GEE platform. Our results showed that RF had the coefficient of determination (R2) (0.57), which can predict the spatial distribution of the STN and analyze the trend of STN changes. The remote sensing spectral reflectance is more important in model building according to the variable importance analysis. From 2002 to 2016, the STN content of cropland in the province had an upward trend of 35.6%, which increased before 2010 and then decreased slightly. The GEE platform provides an opportunity to map dynamic changes of the STN content effectively, which can be used to evaluate soil properties in the future long-term agricultural management.
Fiscal Sustainability in Aging Societies: Evidence from Euro Area Countries
Authors: Ramos-Herrera María del Carmen , Sosvilla-Rivero Simón
Published: December 2020

Fiscal sustainability remains a paramount challenge in the Euro Area (EA) countries after the sharp rise in public debt-to-GDP ratios in the aftermath of the financial crisis of 2008. Using data from 11 EA countries over the period 1980–2019, we apply panel data techniques to examine the effects of population aging on fiscal sustainability, controlling for key macroeconomic variables. Our results suggest that the discretionary fiscal policy is strongly persistent, not being consistent with long-term fiscal solvency. Moreover, our results indicate that the fiscal stance is countercyclical for the countries under study and that population aging poses a major challenge for fiscal sustainability. The findings are robust to a different grouping of countries within the sample (core and peripheral countries, relatively old and young countries, and relatively more and less indebted countries). We consider that our results may have some practical meaning for national policymakers and international organizations responsible for regional and global fiscal surveillance and might shed some light on the possible effects that population aging could have on the effort of EA countries to restore public finances on a sustainable basis.
The Role of Confucius Institutes and One Belt, One Road Initiatives on the Values of Cross-Border M&A: Empirical Evidence from China
Authors: Jung Jin-Young , Wang Wei , Cho Sung-Woo
Published: December 2020

This study examines how national cultural policies such as Confucius Institutes and One Belt, One Road initiatives (BRI) affect the post-acquisition returns of Chinese cross-border mergers and acquisitions based on data from a sample of 192 transactions covering 2011 to 2015. We find that the cultural export of Chinese Confucius Institutes and the BRI exert a significantly positive impact on long-term acquirer returns, while cultural/institutional distance exerts a negative impact. Further evidence shows that Confucius Institutes and BRI mitigate the negative effect of cultural distance between merging firms. These results offer the first evidence that national cultural translation has substantial impacts on the long-run acquirer financial performance of cross-border mergers that decrease cultural institutional heterogeneity between countries.
Improved Serviceability and Environmental Performance of One-Way Slabs through the Use of Layered Natural and Recycled Aggregate Concrete
Authors: Tošić Nikola , Marinković Snežana , Kurama Yahya
Published: December 2020

Recycled aggregate concrete (RAC), i.e., concrete produced with recycled concrete aggregate (RCA) has been heavily investigated recently, and the structural design of RAC is entering into design codes. Nonetheless, the service load deflection behavior of RAC remains a challenge due to its larger shrinkage and creep, and lower modulus of elasticity. A novel solution to this challenge is the use of layered concrete, i.e., casting of horizontal layers of different concretes. To investigate the potential benefits and limits of layered concrete, this study contains a numerical parametric assessment of the time-dependent sustained service load deflections and environmental impacts of homogeneous and layered NAC and RAC one-way slabs. Four types of reinforced concrete slabs were considered: homogeneous slabs with 0%, 50% and 100% of coarse RCA (NAC, RAC50 and RAC100, respectively) and layered L-RAC100 slabs with the bottom and top halves consisting of RAC100 and NAC, respectively. In the deflection study, different statical systems, concrete strength classes and relative humidity conditions were investigated. The results showed that the layered L-RAC100 slabs performed as well as, or even better than, the NAC slabs due to the differential shrinkage between the layers. In terms of environmental performance, evaluated using a “cradle-to-gate” Life Cycle Assessment approach, the L-RAC100 slabs also performed as well as, or slightly better than, the NAC slabs. Therefore, layered NAC and RAC slabs can be a potentially advantageous solution from both structural and environmental perspectives.
Exploring the Environmental Practices in Hospitality through Booking Websites and Online Tourist Reviews
Authors: Foris Diana , Crihalmean Natalia , Foris Tiberiu
Published: December 2020

The major impact of hotel industry on the environment has become a serious concern for both hoteliers and tourists, with many studies showing that tourists are having more and more expectations from hoteliers to implement environmental practices. Considering the fact that most hotel bookings are now made online through booking websites, it is important for these to show and manifest the same preoccupation with the environment, by promoting environmentally friendly initiatives. The aim of the present study is to emphasize the crossroads between sustainability and digitalization, and to increase the role of digital technologies in encouraging a sustainable development of all tourism sectors, including hospitality. The study provides information and identifies important elements to assess the environmental practices of booking websites. In order to identify the position that booking websites and platforms take towards the environmental practices, the filter section of four booking platforms is analyzed. The present study aims not only to analyze the current position of booking platforms towards the environment, but also to identify methods that improve the way they highlight their implemented environmental practices, based on tourist’ reviews. In order to identify the customers’ opinion regarding these types of practices, a total of 31,800 tourist reviews posted on Booking.com were analyzed. The results have indicated that the level of awareness related to the need of protecting the environment, in the case of both hoteliers and tourists, must increase aspects that also imply the need for booking websites to highlight and encourage environmental practices. The obtained results are useful for booking websites developers who can adapt and make the website’s interface friendlier regarding environmental practices. In addition, hotel managers and entrepreneurs can make use of these results in order to develop new types of business in the hospitality industry, and in the long run the results are useful for increasing the awareness among tourists of the need for environmental practices. Suggestions are made on how booking websites can involve themselves more in environmentally friendly initiatives and in potential future study subject discussions.
Mapping the Food Festivals and Sustainable Capitals: Evidence from Poland
Authors: Zarębski Patrycjusz , Zwęglińska-Gałecka Dominika
Published: December 2020

This study is one of the first attempts to identify and explain the location of food festivals in the context of locally embedded capitals. A multidimensional spatial model was developed and a typology using the k-means method was carried out to evaluate the mapping of 64 food festivals organized in various locations in Poland. With reference to Bourdieu’s concept, the economic, social, cultural, symbolic, and tourism capitals rooted in the local environment were examined and compared with the location of festivals. From the theoretical point of view, this study extends the theory of capital to include the new category of tourism capital, which allows better understanding of the economic effects of festivals. It is the missing element of the circular mechanism of capital conversion. Our study shows that food festivals in Poland are held mainly in large cities and their neighboring municipalities rather than in peripheral rural areas. We indicate that the urban areas have a higher level of capitals and sustainability of capitals for food festivals than rural areas. The conducted research shows that the economic effect of food festivals is stronger in locations with high tourism capital. The proposed model is universal and can be used to analyze the impact of various festivals on capital conversion and local development.
Bat-Borne Coronaviruses in Jordan and Saudi Arabia: A Threat to Public Health?
Authors: AL-Eitan Laith N. , Tarkhan Amneh H. , Alghamdi Mansour A. , Marston Denise A. , Wu Guanghui , McElhinney Lorraine M. , Brown Ian H. , Fooks Anthony R.
Published: December 2020

Emerging infectious diseases are of great concern to public health, as highlighted by the ongoing coronavirus disease 2019 (COVID-19) pandemic. Such diseases are of particular danger during mass gathering and mass influx events, as large crowds of people in close proximity to each other creates optimal opportunities for disease transmission. The Hashemite Kingdom of Jordan and the Kingdom of Saudi Arabia are two countries that have witnessed mass gatherings due to the arrival of Syrian refugees and the annual Hajj season. The mass migration of people not only brings exotic diseases to these regions but also brings new diseases back to their own countries, e.g., the outbreak of MERS in South Korea. Many emerging pathogens originate in bats, and more than 30 bat species have been identified in these two countries. Some of those bat species are known to carry viruses that cause deadly diseases in other parts of the world, such as the rabies virus and coronaviruses. However, little is known about bats and the pathogens they carry in Jordan and Saudi Arabia. Here, the importance of enhanced surveillance of bat-borne infections in Jordan and Saudi Arabia is emphasized, promoting the awareness of bat-borne diseases among the general public and building up infrastructure and capability to fill the gaps in public health preparedness to prevent future pandemics.
Prescribing patterns and costs associated with erectile dysfunction drugs in England: a time trend analysis
Authors: Bell Colette , Hadi Muhammad Abdul , Khanal Saval , Paudyal Vibhu
Published: December 2020

Background

Sildenafil and tadalafil are recommended firstline treatments for erectile dysfunction (ED). Sildenafil was legally reclassified to a ‘pharmacy’ medicine in the UK in 2018.

Aim

To assess the prescribing patterns and costs associated with prescribing of ED drugs in England, and to investigate the link between prescribing and deprivation, regional demography, and legal reclassification.

Design & setting

Analyses were conducted of publicly available government data from various sources pertaining to primary care prescribing and demographics in England.

Method

Prescribing and cost data from January 2009 to November 2019 were extracted and adjusted for inflation, male populations, and regional deprivation.

Results

Between 2009 and 2019 the rate of prescribing, measured as the number of items per 1000 men, increased by 110%. In 2019, the rate of prescribing of ED medicines in the most deprived areas was 21.0% higher than the rate observed in least deprived areas. The northern regions of England approximately had a 50% higher rate of prescribing compared with London. A 1.3% annual increase in the number of prescription items was observed between 2018 and 2019 for Sildenafil, with a 5.8% increase observed from 2017–2018.

Conclusion

The two-fold increase in the rate of primary care prescriptions in the past 10 years suggests that more men are being screened for, or seeking help for, ED. The higher rate of prescribing offers opportunity for monitoring of linked risk factors, such as diabetes mellitus, dyslipidaemia, and vascular disorders, in deprived populations. Reclassification of sildenafil had a modest impact on prescribing practices.
Multinational Corporations’ International Marketing in the Focus of Global Regionalization Process
Authors: Zhukov Sviatoslav , Diugowanets Olesia
Published: December 2020

Modern international economic relations are characterized by active integration, internationalization and globalization. All of them affect the political, economic, social and cultural aspects of people's lives in different countries, as well as the scientific and technological development of national economies. The prospects for expanding the scale of production and markets with a lifelong problem of resource provision remain important. The latter affects the intensification of competition among multinational corporations, the main tool of which is to reduce production costs by moving production to countries with the necessary resources and cheap labour. This leads to the expansion of the TNCs’ network in the world market and encourages adaptability to national markets, and will ensure the sale of products and profits. A decisive place in the TNCs’ activities belongs to the use of international marketing based on the opposite processes, e.g. globalization and regionalization. The purpose of the article is to generalize theory and practice, identify trends and establish interdependencies among the processes of globalization, regionalization and the use of types of TNCs’ international marketing. The research used such methods as general, materialistic, comparative, the method of comparative analysis, the method of displaying research results in graphical and tabular form, system approach, analysis, synthesis, induction, deduction, abstraction, modelling, and comparison. As a result, the modern development of globalization, regionalization and their hybrid known as global regionalization (glocalization) is studied; the reasons and preconditions of changes in the TNCs’ strategic orientation in the context of current trends in the process of global regionalization are identified; the directions of reorientation of the TNCs’ international marketing strategy from local marketing to global marketing are determined; the use of such types of international marketing as cascade, global and transnational, is characterized and substantiated. The study came to the following conclusions: a modern positive phenomenon in the TNCs’ development is international marketing in the context of global regionalization, as an effective and promising hybrid of two modern trends of globalization and localization (regionalization); TNCs should reorient from a global business strategy to a transnational one, adhering to the principle of "global and local thinking", using international marketing, adhering to a global marketing strategy; studies of cascade, global and transnational types of international marketing have shown significant differences in cascade and global types of marketing, and transnational marketing is characterized by mediocrity of most indicators, which indicates the rationality of its use.
DESMONTAGEM: FOTOGRAFIA E PROCESSO FICCIONAL
Authors: Leite Amanda Mauricio Pereira
Published: December 2020

DESMONTAGEM: FOTOGRAFIA E PROCESSO FICCIONAL
ROBUST IMAGE WATERMARKING IN CONTOURLET DOMAIN USING GENETIC ALGORITHM
Authors: Arulmurugan A. , Arul N. , Kumar P.Santhosh
Published: December 2020

In this paper objective is to develop a robust image watermarking method in contourlet domain using GA(Genetic Algorithm) to improve the quality and robustness of the watermarked image, by reducing the (BER)Bit Error Rate to with stand against common image processing attacks. Selecting more Co-efficient in more directions is achieved by means of combining Laplacian Pyramid with Directional filter bank structure which captures directional information efficiently.
Do fiscal regimes matter for fiscal sustainability in South Africa? A Markov-switching approach
Authors: Woldu Gabriel Temesgen
Published: December 2020

This paper empirically examines South Africa’s fiscal sustainability through a Markov-switching model which utilizes quarterly datasets for the period from 1960 to 2019. The results show that public debt responds positively, demonstrating a sustainable fiscal policy. Furthermore, considering the regime-specific feedback coefficients of the fiscal policy rule and the durations of fiscal regimes, the study finds that South Africa’s fiscal policy satisfies the No-Ponzi game condition. Therefore, from a policy perspective, the South African government should take measures such as pension reforms, reducing operational expenses, reducing subsidies, and funding micro and small enterprises to gain the double dividend on the expenditure side along with revenue-enhancing measures on consumption taxes to achieve stable public finances and lower debt levels.
Saberes, territorio y estatalidad
Authors: Molina Eugenia
Published: December 2020

El trabajo aborda la creación y los primeros años del Departamento Topográfico junto con la normativización de la agrimensura con el objeto de pensar las relaciones dialécticas entre saberes, territorio y estatalidad desde un marco empírico. Se trabajan fuentes originales y éditas producidas desde el gobierno central y sus oficinas para mostrar cómo la labor de la institución estuvo predominantemente orientada a las obras públicas y a la acumulación de planos y croquis que “produjeran” el espacio provincial, sin tener incidencia efectiva en la formación de un catastro con fines fiscales. Comparado con otros casos contemporáneos, se evidencia cómo los ámbitos burocráticos que debían aportar capital informacional a los Estados provinciales se desplegaron con dinámicas diferentes según los recursos materiales y humanos disponibles, respondiendo a necesidades coyunturales específicas.
Notas sobre la nueva institucionalidad del ciclo de gobierno kirchnerista:
Authors: Hermida María Eugenia , Meschini Paula
Published: December 2020

Este trabajo problematiza la construcción de una nueva institucionalidad, que se cimienta en nuestro país durante el ciclo de gobierno kirchnerista (2003- 2015) en la tensión que se genera entre lo normativo definido por un profuso corpus legislativo y la normalidad de lo instituido.
Lo personal es política universitaria. Un análisis de las tramas feministas que originan y componen la Red Interuniversitaria por la igualdad de género y contra las violencias
Authors: Moltoni Rocío Mariel
Published: December 2020

Como es sabido, las desigualdades y asimetrías de poder que se producen en el sistema heteropatriarcal de nuestra sociedad son estructurales y, por lo tanto, se manifi estan tanto en el ámbito privado, como en el público. Así, las instituciones que habitamos cotidianamente, como la Universidad, no permanecen ajenas a esas asimetrías que están en la constitución misma de su entramado estructural. Las políticas empleadas con perspectiva de género y/o contra la violencia de género específi camente en la Universidad son las que nos convocan actualmente a escribir este artículo. El mismo se enmarca en un contexto más amplio de producción de mi tesina de grado, la cual ya ha sido fi nalizada, y tiene por objetivo describir y explorar la experiencia de la Red Interuniversitaria por la igualdad de género y contra las violencias. Dicha Red puede ser concebida como una alianza para problematizar las cuestiones de género en las instituciones educativas de nivel superior, siendo una apuesta por visibilizar y fortalecer el trabajo contra la violencia y la discriminación en extensión, docencia e investigación. En este sentido, interesa profundizar el análisis de este tipo de experiencias en clave feminista, y desde las teorías críticas que abonan a la despatriarcalización y descolonización de nuestros Estados latinoamericanos.
configuración de la Vida Cotidiana en familias con niños o niñas diagnosticados con Trastorno Generalizado del Desarrollo (TGD) y/o Trastorno del Espectro Autista (TEA)
Authors: Godoy Dana Elina
Published: December 2020

El propósito de este trabajo es recuperar algunas claves de la investigación131 que realicé en la Facultad de Trabajo Social de la Universidad Nacional de Entre Ríos. La misma fue dirigida por la Magíster en Trabajo Social María Alfonsina Angelino y tuvo como objeto de estudio “La configuración de la Vida Cotidiana en familias con niños o niñas diagnosticados con Trastorno Generalizado del Desarrollo (TGD) y/o Trastorno del Espectro Autista (TEA)”. La elección de estos diagnósticos respondió a la masificación de los mismos en la actualidad y a su irrupción en la infancia. Este trabajo apuntó a conocer y analizar las rupturas y continuidades que se manifestaron en la cotidianeidad de la familia a partir del diagnóstico de su hijo. A fin de responder a este objetivo, realicé una investigación de tipo cualitativa que me permitió analizar e interpretar no solo las tres entrevistas en profundidad realizadas a madres de niños diagnosticados con TGD y/o TEA, sino también las charlas informales al interior del Grupo TGD Padres Santa Fe, la asistencia a reuniones y las observaciones. La hipótesis que sostuve fue que la vida cotidiana en las familias se encontró modificada a partir del diagnóstico, volviéndose estructurada, reglada y terapéutica. No solo ello quedó evidenciado durante todo el trayecto de este trabajo, sino que también pude advertir las nuevas prácticas cotidianas que empezaron a formar parte de la familia a fin de responder a los tratamientos que necesitan sus hijos.
agricultura familiar como campo de intervención e investigación social
Authors: Urcola Marcos Andrés
Published: December 2020

El artículo presenta, a modo de ensayo, lo ejes centrales que hacen a la agricultura familiar como categoría empírico-conceptual que expresa las contradicciones y conflictos del mundo agrario y rural actual. En función de esto, se ofrece una descripción de la importancia que ha cobrado la temática en nuestro país y sus potencialidades como espacio para el desempeño profesional y académico del Trabajo Social.
El movimiento estudiantil de La Plata en los años ´50: reformismo, peronismo y Guerra Fría a través de una década
Authors: Pis Diez Nayla
Published: December 2020

Este artículo propone una reconstrucción de la historia del movimiento estudiantil de la Universidad de La Plata, en la década de 1950. Abordaremos los cambios y rupturas que atravesó el estudiantado reformista de aquella ciudad durante diez años que contuvieron, sin dudas, dos etapas históricas bien diferenciadas. Por ello, se busca observar rupturas y continuidades considerando dos planos de análisis: sus definiciones respecto de la universidad, la Reforma Universitaria y sus banderas gremiales; y la forma cómo aparecen las coordenadas del debate político de la década, peronismo/antiperonismo, también comunismo/anticomunismo y democracia/totalitarismo.
Eventos sobre temas y problemas del pasado tratados en distintos períodos. Aportes para la historia de la ciencia argentina
Authors: Ramos Mariano
Published: December 2020

En este trabajo hago una revisión de las comunicaciones presentadas en cada Congreso Nacional de Arqueología Argentina, desde el primero en 1970, hasta los más recientes. Selecciono algunos de esos congresos y conformo una muestra, de la que tomo un conjunto de temáticas presentadas en distintos eventos. El objetivo general apunta hacia el análisis de los temas, que incluyen resultados de investigación, de la aplicación de técnicas y otros recursos empleados y reflexiones sobre aspectos epistemológicos, teóricos y de método. Agrupo y clasifico esas temáticas y procedo a analizarlas en los diferentes contextos en los que se va desarrollando la ciencia. Al final hago una breve evaluación de los contextos históricos, sociales y políticos en los que se enmarcan determinados casos -temas y problemas- tratados en algunas etapas de la Historia de la ciencia argentina.
Arqueología histórica:
Authors: Rocchietti Ana María
Published: December 2020

La Arqueología Histórica surgió en los años noventa en la Argentina como un programa controversial. En primer lugar, se trataba de inscribir las excavaciones realizadas en sitios históricos o en sitios con niveles estratigráficos correspondientes a períodos posteriores al colapso producido por la invasión española en la población originaria, desarrollando una convergencia entre arqueología e historia. En segundo lugar, el debate ponía el acento en una u otra, en sus respectivos campos y metodologías y, especialmente en el riesgo de hegemonía por una a expensas de la otra. Apaciguada la pasión de la confrontación, es posible hacer una síntesis de la intencionalidad programática que hoy la anima –si es que ella existe- y analizar algunas dimensiones epistémicas del delicado vínculo entre arqueología e historia.
Análisis zooarqueológico de los restos hallados en una estructura sanitaria vinculada a momentos tempranos del actual barrio de Belgrano
Authors: Silveira Mario , Padula Horacio , Orsini Ricardo , Bernat Eva
Published: December 2020

La excavación de una estructura hallada en el Sitio Barrancas de Belgrano permitió establecer dos niveles de descarte muy definidos, donde se recuperaron materiales de origen cultural correspondientes a las últimas décadas del siglo XIX y principios del XX, y entre otro, con descartes más tempranos cuya cronología se sitúa entre fines del siglo XVIII y principios del XIX, y podría tener vinculación directa con la presencia de los franciscanos y su industria y los demás grupos humanos que se asentaron la zona en aquellos años. Fue en estos últimos estratos, en los cuales se recuperó el material más significativo, cuyos ejemplares demostraron presentar menores perturbaciones antrópicas y naturales, y revelaron un conjunto amplio, diverso y bien conservado de materiales culturales.Entre los materiales más destacables pueden mencionarse: piezas de vajilla de loza inglesa, mayólicaespañola y francesa, porcelana oriental, ollas y demás recipientes de terracota de producción europea yregional, botones de hueso, vasos de vidrio soplado con decoraciones grabadas, un basín de mayólica,botellas de bebidas alcohólicas, frascos, cuentas de vidrio, una botija española de uso mercantil, dosreales del siglo XIX, un florero de posible uso litúrgico y una importante cantidad de coquinas que pertenecen a la ingresión belgranense con su molusco fósil característico, la erodona (Erodona mactroides).De este conjunto nos ocupa el análisis del material óseo producto de la dieta de los moradores del sitio,donde se halló una importante cantidad de elementos de los cuales fue posible determinar taxonómicamente la mayor parte de sus restos por tratarse de un descarte primario. Tres de estos taxones son considerados domésticas (gallinas, ovinos y vacunos) y el resto producto de caza y pesca que presumimos fueron descartadas luego de su consumo. De las restantes especies, cuyos restos no consideramos de consumo, se han encontrado elementos óseos de animales domésticos como el caballo, gatos y perros. Siendo las demás especies halladas, propias de un área salvaje y con cuerpos de agua cercanos característico de aquella época.
Si no hay tabaco que no se note. Prácticas fumatorias En el fortin La Perra (1883-1885), La Pampa
Authors: Tapia Alicia , Pineau Virginia , Auge Melisa Ayelén
Published: December 2020

En este artículo se presentan los resultados obtenidos a partir del análisis de microrrestos vegetales identificados en una pipa artesanal hallada en el Fortín La Perra, departamento Loventue, La Pampa. En dicho sitio se instaló un pequeño asentamiento militar que formó parte de una línea de fortines planteada a partir de 1882, como estrategia para ejercer la vigilancia y el control del territorio del cual fueron expulsados los ranqueles durante la Conquista del Desierto en 1879. El patrón de asentamiento de este sitio así como los materiales vítreos, faunísticos y de metal recuperados han sido objeto de diferentes estudios ya publicados. En este caso, el estudio específico del contenido de la pipa constituye  un nuevo aporte a los conocimientos alcanzados sobre la falta de provisiones y el aislamiento al que fueron sometidos los integrantes de las guarniciones militares de fines del siglo XIX, ubicadas en el interior de la pampa seca.
Patrimonio natural, urbano y arquitectónico de la costa en Mar del Plata
Authors: Negroni Federico
Published: December 2020

La ciudad de Mar del Plata fue fundada en 1874 por Patricio Peralta Ramos en la costa bonaerense sobre el Océano Atlántico a unos 400 km al sur de la Ciudad de Buenos Aires. A lo largo de su historia ha pasado de ser un pequeño poblado dedicado a la explotación ganadera a convertirse en las primeras décadas del siglo XX en la ciudad balnearia elegida por la elite porteña para pasar los veranos junto al mar. Los avances sociales a partir de la década del 1940 transformarían a la ciudad en un gran polo turístico de las clases medias trabajadoras conformando la vibrante y cosmopolita ciudad costera de la actualidad.Su paisaje natural representa un valor patrimonial particular en la costa atlántica por los accidentes geográficos de su costa conformada por pequeñas bahías, las salientes rocosas del macizo de Tandilia y la barranca desde su costa alta hacia el mar.Este atípico paisaje de la línea costera ha sido modificado por la mano del hombre a lo largo de más de un siglo fundamentalmente en tres áreas: 1. Las construcciones sobre el mar de escolleras y muelles destinados a preservar sus playas de la erosión marina.2. Las edificaciones que albergan distintos servicios para satisfacer las necesidades de los veraneantes sobre el nivel de la playa y las intervenciones paisajistas sobre la barranca natural. 3. La constitución del borde urbano sobre la costa mediante variados ejemplos arquitectónicos de distintos períodos.Todos estos aspectos constituyen un valor patrimonial fundamental en la conformación de su identidad de ciudad costera.
Arqueología urbana:
Authors: Fernetti Gustavo
Published: December 2020

La Arqueología urbana rosarina se inició en 1989, mediante una serie de proyectos municipales, produciendo un amplio conocimiento sobre el pasado de la ciudad. Aunque con escasas publicaciones, esta etapa fue sumamente fructífera, tanto en la identificación de los materiales hallados como en la definición de sitios arqueológicos de gran potencial científico. Sin embargo, con el nuevo siglo ese impulso pareció agotarse. Pasados 10 años de aquéllos trabajos, la Arqueología urbana tomó un cauce inédito, al articularse tanto con conceptos antropológicos como de la memoria popular, construyendo nuevos objetos de investigación. La presente conferencia, dictada en el Centro Cultural Fontanarrosa el 4 de octubre de 2019, a 30 años de aquel inicio busca una reflexión sobre la historia de la disciplina y en esta nueva etapa de la Arqueología urbana rosarina, propone una apropiación del saber arqueológico por parte de todos y todas, prefigurando una era etapa más reflexiva e integrada a la sociedad.