bluuebunny/crossref_metadata_2025 huggingface dataset:
Geoarchaeological interpretations of the formation and environment of Samaca H-8, Ica Valley, south coast Peru (c. AD 900–1550)
Authors: Santana Quispe Lady , French Charles , Beresford-Jones David , Rengifo Chunga Carlos Enrique
Published: December 2022

Today the Lower Ica Valley (Peru) exhibits evidence of environmental degradation, strong activity of deposition and erosion processes through modifying agents such as water and wind. All of this is the product of a long process of environmental transformation both during and since pre-Columbian times. Archaeological remains present in this valley evidence a long and important pre-Columbian cultural trajectory. We provide a case study of the geoarchaeology of the Samaca H-8 archaeological site that was founded sometime towards the end of the Middle Horizon (c. AD 900-1000) and consolidated its development during the Late Intermediate period (AD 1000-1400). This work contemplates the analysis of soils and sediments using micromorphology, geochemical-geophysical analyzes and radiocarbon dating. The results reveal that the construction and first occupation of Samaca H-8 (or at least the eastern part of the site), during the transition from the Middle Horizon period to the Late Intermediate Period, was marked by environmental dynamics and drastic landscape change toward more arid conditions. Recurrent deposition of windblown materials took place, perhaps due to a lack of protection offered by riparian dry forest cover. The Samaca H-8 site was established under these environmental conditions around AD 900.
Use of sediments and soils (paleosols) in construction fills of La Joya archaeological site, Veracruz, Mexico: micromorphological evidence
Authors: García-Zeferino Thania A. , Daneels Annick , Díaz-Ortega Jaime , Solleiro-Rebolledo Elizabeth
Published: December 2022

In this paper, we study the materials used for the construction of earthen structure in the La Joya archaeological site, on the Gulf of Mexico coast, built on top of a paleodune, from the Late Preclassic (400 BC) to the Classic period (AD 100-1000). The first constructions arise around 100 BC, on a paleodune top rising slightly above the surrounding alluvial terraces of the Jamapa river; then it grows into a 15-ha monumental compound. The total construction volume reaches 250,000 m3, all made of earth, surrounded by large artificial water pounds (reservoirs). To understand the kind of components found in the structures and their provenance, we compare the micromorphological features of the materials from the earthen constructions with the sediments and paleosols located in the surrounding areas. Samples were taken from the fills of three first building stages, as well as from a natural soil profile and the natural paleosol horizons found beneath the structures. Micromorphological features found in fills permit to establish the correlation between them and their parent material. The fills from the first stage of construction have fragments of a Btb horizon, mixed with an A horizon, compacted and crushed, in which abundant artifacts are identified. However, these artifacts were not intentionally incorporated to the fills, but had been accumulated on the pre-occupation A horizon as residential and agriculture trash. Particular attention was paid to a gley material occurring in the third building stage, that was believed to come from the sediments accumulated in the original borrow pits transformed into water reservoirs, enclosing the main architectural compound. These reservoir fills share properties of the natural sediments and paleosols but transformed by the waterlogging conditions. In consequence, these materials are interpreted as a case of anthropogenic pedogenesis, where the gley micromorphology indicates waterlogging conditions, but in artificially made reservoirs, as they do not have dark organic sediments that would result of the vegetation typical of a natural pond in a humid tropical environment.
Provenance of Upper Devonian Ilanqareh Formation (NW Iran), assessed using petrography and major element geochemistry
Authors: Anjerdi Javad , Jafarzadeh Mahdi , Najafzadeh Adel , Mahari Rahim
Published: December 2022

In this study, a combination of petrographic and major element geochemical methods was employed on sandstones and shales of Upper Devonian Ilanqareh Formation, northwest of Iran, aimed at investigating the tectonic setting and the weathering degree of rocks in the source area. The index of compositional variability (ICV below 1) indicated that the studied quartzarenite and subarkose sandstones were not in the first cycle. Petrographic studies showed the existence of a craton interior provenance for these sandstones and geochemical studies identified recycling of older formations as an important source of these deposits. The chemical index of alteration (CIA values of 78.18 to 90.42 for sandstones and 91.55 to 91.93 for shale samples) indicated that the samples were affected by the high degree of weathering due to the humid climate in the source areas. Geochemical discrimination diagrams revealed that the samples were deposited in a passive margin. According to the paleogeography, this passive margin was the margin of a rift basin in the northwest of Gondwana, and the Ilanqareh deposits were derived from the Arabian-Nubian shield and the recycling of the Lower Palaeozoic sandstones in the region.
Subducted iron and glassy spherules in the upper mantle?
Authors: González-Jiménez José M. , Sergeeva Ivanina , Kerestedjian Thomas N. , Gervilla Fernando
Published: December 2022

Spherules are documented in ophiolitic mantle rocks such as peridotites and associated chromitites. They consist of: (1) native iron having variable amounts of Ni with/without inclusions of silicate glass or oxides (wüstite), (2) dendritic intergrowth of oxides (magnetite, wüstite and hematite) with/without silicate glass and, (3) silicate glass. Consensually, they are interpreted as indigenous to chromitites and related with high-temperature processes operating in the Earth’s upper mantle. However, their similarity with terrestrial and extraterrestrial spherules found in other settings of the geological record is remarkable. We raise the question on such indigenous origin, relating them to volcanic and cosmic material recycled back to the mantle wedge where chromitites form during subduction.
Capacitance Calculation Model in Corona Discharge Case
Authors: Wardaya Asep Yoyo , Muhlisin Zaenul , Suseno Jatmiko Endro , Munajib Charis , Hadi Susilo , Sugito Heri , Windarta Jaka
Published: December 2022

The (I-V) characteristic pattern of the corona discharge case is very different from the pattern of ordinary electric circuits, so it is interesting to investigate. Several previous studies involved the concept of Maxwell's equations on several physical case models such as coaxial cylinder, electrohydrodynamic, and the electric wind. In this study, we use a capacitance calculation model for positive dc corona discharge in air, especially in calculating the (I-V) current-voltage characteristics of an electrode configuration model, often referred to as capacitively coupled plasma (CCP). The configuration model comprises active and passive electrodes, with the active electrode in the form of a pentagonal with the sharp end (in the middle) facing downwards in an upright position. The passive electrode under the active electrode has a large rectangular shape in a lying place. This configuration model is named The Chisel Eye and Midpoint-Plane (CEM-P). The analytical calculation of the (I-V) characteristics uses the geometric properties of the active electrode, which will produce a large corona current flow at the pointed electrode. These properties in analytical calculation manifest with the emergence of the corona flow multiplication factor at the sharp active electrode’s integration boundary condition called the shape sharpness factor k. The Python GUI Programming simulation program makes graphic simulations, Standard Deviation (SD), t-tests, and calculating the factor k (fitting curve value) between numerical calculations and research data. The values of the SD, the t-tests, and the Percentage of tangent points meet the requirements for a high level of accuracy for the four CEM-P configuration models of the (I-V) characteristics simulation graph with the graph has a relatively large percentage of tangent points values (82.35% – 94.44%).
System Dynamic Model for Simulating Aviation Demand: Baghdad International Airport as a Case Study
Authors: Albayati Rawaa Sameer , Zehawi Raquim Nihad
Published: December 2022

The aviation authorities have long been impacted by fluctuations in demand, which are often caused by the aviation industry's cyclical nature. It is affected mainly by many endogenous or exogenous variables. Despite that, the airport authorities and air carrier management make significant efforts to deal with fluctuating demand. This paper analyzed the factors influencing demand at Baghdad International Airport, based on the pertinent local socio-economic data such as "population size," "GDP," and "terrorism effect," as well as system-based factors related to aviation activities and airport characteristics for the past ten years, to develop a system dynamics simulation model by which the causes of fluctuation are highlighted in order to predict the magnitude and timing of the increment or decline in an offer to minimize losses to all parties in the airport system. The simulation results demonstrated very high goodness of fit with the actual data, producing R2 values of 0.865 and 0.86 for the departing and arriving passengers, respectively. Even though Iraq's unstable political and economic situation led to the interaction between the different demand drivers, external factors have a bigger effect on the country's need for air travel, causing demand shocks that take a long time to recover from.
Congestion Intrusion Detection-Based Method for Controller Area Network Bus: A Case for KIA SOUL Vehicle
Authors: Okokpujie Kennedy , Mughole Daniella , Badejo Joke A. , Adetiba Emmanuel
Published: December 2022

In the vehicle industry, connectivity and autonomy are becoming increasingly important features. One of the most used protocols for in-vehicle communication is the Controller Area Network (CAN) bus which manages the communication between networked components. However, the CAN bus, despite its critical importance, lacks sufficient security features to protect its network as well as the overall car system. Thus, vehicle network security is becoming increasingly crucial. Methods of intrusion detection help to improve the security of the in-vehicle network. This work aims to provide a model that enables effective detection of attacks such as fuzzy, DoS, and impersonation using the Deep Feedforward Neural Network (DeepFNN) model as well as the Long Short-Term Memory model. Moreover, the LSTM model presents the most satisfying outcome in terms of precision and recall metrics.
Validating the Reliability Simulation Using Bohlamp Circuit with Accelerated Life Test Method
Authors: Wahyudi Bagus , Wicaksono Hangga
Published: December 2022

Learning media is very importance tools to achieved the learning outcome like capable to design reliability engineering system (RES). The students should be understanding with basic theory of reliability and also have technical skill based on need analysis. Unfortunately, the RES learning media are still not available specially to implement of several type of reliability system. Objective of the study is introducing reliability device model simulation with choice option series, parallel and combine series-parallel system. Method of the study are using accelerated life testing method (ALT) which has been analyzed with statistical method to estimate life-time at normal condition. Validating value of each reliability system are have similarity between experimental test (Re) and theoretical (Rt) i.e.: series (Rt=0.329; Re=0.359); parallel (Rt=0.976; Re=0.972.), and combined of series-parallel (Rt=0. 651; Re=0.686). The conclusion is the parallel have high-fidelity on application of reliability simulation with error 0.000409.
Dynamic Response and Reliability Analysis of Stochastic Multi-Story Frame Structures under Random Excitation
Authors: Noori Mohammed S.M. , Abbas Rafaa M.
Published: December 2022

In earthquake engineering problems, uncertainty exists not only in the seismic excitations but also in the structure's parameters. This study investigates the influence of structural geometry, elastic modulus, mass density, and section dimension uncertainty on the stochastic earthquake response of a multi-story moment resisting frame subjected to random ground motion. The North-south component of the Ali Gharbi earthquake in 2012, Iraq, is selected as ground excitation. Using the power spectral density function (PSD), the two-dimensional finite element model of the moment resisting frame's base motion is modified to account for random ground motion. The probabilistic study of the moment resisting frame structure using stochastic finite element utilizing Monte Carlo simulation was presented using the finite element program ABAQUS. The dynamic reliability and probability of failure of the stochastic and deterministic structure based on the first passage failure were checked and evaluated. Results revealed that the probability of failure increased due to randomness in stiffness and mass of the structure. Generally, natural frequencies for the lower modes of vibration and relative displacements for the lower stories were more sensitive to the randomness in system parameters.
Optimisation of the Single-Vendor Single-Buyer Supply Chain System under Fuzzy Demand Using Optimisation–Simulation Closed Loop Technique
Authors: Purnomo Muhammad Ridwan Andi , Wahab Dzuraidah Abdul , Anugerah Ade Rizqy
Published: December 2022

This research aims to model and optimise the most applicable supply chain system, which is a single-vendor single-buyer system with fuzzy buyer demand. An optimisation model of the supply chain system under consideration is built by formulating the objective function, which is minimising the joint total cost between a buyer and a vendor. The model is developed on the basis of a simulation system, and optimisation is carried out by utilising a Genetic Algorithm that has been embedded in the simulation system. This technique is called optimisation–simulation closed loop. The vendor actual condition, which deals with uncertain demands from the main buyer and other small buyers, is considered. To analyse timely supply chain events, a simulation system is developed. A new optimisation model for the single-vendor single-buyer supply chain system with fuzzy demand is developed on the basis of the simulation system. The use of optimisation–simulation closed loop is also a new finding. In this study, the optimisation model of the supply chain under consideration is developed by taking into account a specific condition in which the vendor receives demands from the main buyer and other small buyers. Naturally, buyer demand is uncertain and has been modelled using a fuzzy set. The use of optimisation–simulation closed loop enables the supply chain to make the optimum decision when at the steady state condition.
Identification of Potential Quality of Groundwater Using Improved Fuzzy C Means Clustering Method
Authors: Relangi Naga Durga Satya Siva Kiran , Chaparala Aparna , Sajja Radhika
Published: December 2022

The groundwater quality assessment gained more attention among the water quality management stations and researchers. The conventional water quality index method and artificial neural network models are used to assess groundwater. But these models are inadequate to handle data with uncertainty. In this work, we propose an improved Fuzzy C Means clustering method to identify the homogeneous clusters with respect to groundwater quality. For this purpose 1020 groundwater samples data with 7 physiochemical parameters of the year 2019 are collected from West Godavari, Andhra Pradesh, India. The effectiveness of the proposed clustering method is evaluated with two standard clustering methods namely K-means and Fuzzy C Means. The initial selection of the number of clusters and cluster centers determines the success of both the conventional K Means and Fuzzy C Means clustering methods. The proposed improved Fuzzy C Means method identifies the optimal number of clusters based on the water index value. The proposed improved Fuzzy C Means clustering method is implemented on the groundwater data set. The performance is computed with the help of the silhouette score and Davies Bouldin Index. The proposed clustering method outperforms with the existing K Means and Fuzzy C Means with silhouette score of 0.857 and Davies Bouldin Index value of 0.502 when the number of clusters are 4.
The Effect of Additional Air Deflector at Air Concentrator on Photovoltaic Performance
Authors: Arifin Zainal , Nurachim Zikri , Hadi Syamsul , Rachmanto Rendy Adhi , Prasetyo Singgih Dwi
Published: December 2022

The supply of fossil energy is decreasing along with the development of civilization and technological advances. Solar energy is one of the renewable energies that can reduce these problems. Solar cells can convert solar energy into electrical energy using the principle of the photovoltaic effect. The performance of photovoltaic panels is affected by the increase in temperature in the photovoltaic panels. This study aims to identify the effect of increasing the number of deflectors on the air concentrator which is implemented as an active cooling of solar cells. This research was carried out experimentally by integrating an air concentrator, deflector, and heatsink on a PV panel. The application of various without concentrators, concentrators without deflectors, concentrators with two deflectors, concentrators with four deflectors, and concentrators with six deflectors, the temperature values are 56.70℃, 54.66℃, 53.30℃, 51.63℃ and 53.70℃. From several variations of the addition of deflectors that have been carried out, it is found that through the application of a concentrator using four deflectors can obtain the most optimal results by producing a maximum power of 24.50 W with a total efficiency of 6.35%. In this configuration, a temperature drop of 5.07℃ is obtained.
Off-Grid Based DOA Estimation Algorithm Using Auto-Regression (1) Sparse Bayesian Learning with Linear Interpolation Model
Authors: Karigowda Raghu , Nagaraj Prameela Kumari
Published: December 2022

On-grid approaches for DOA estimation majorly exhibits the problem of grid mismatch. Coarse grid leads to reduced estimation accuracy and dense grid leads to increased algorithm complexity and performance degradation due to highly correlated array manifold matrix. In this paper, a fixed off-grid DOA estimation algorithm is proposed to overcome this grid mismatch problem. Firstly, a sparsity based linear interpolation model for array manifold matrix is proposed to avoid the above limitation by introducing a bias parameter into the estimation framework. To solve this model, an Auto-regression (1) (AR (1)) based sparse Bayesian learning algorithm is proposed. To exploit the temporal correlation property of unknown DOA spatial spectrum in a MMV case, we develop this AR (1) model along with SBL to estimate the unknown DOA spectrum and expectation maximization (EM) framework to update the hyper-parameters. The results section shows that the proposed algorithm enjoys good estimation resolution and accuracy in the cases of fewer snapshots available, highly correlated signal sources, very low SNR and very closely spaced sources.
Effectiveness of Learning Management Systems in Developing Essay Writing Skills as a Form of Creative Writing for Undergraduate Students in Saudi Arabia
Authors: Mostafa Nahed Mohamed , Alghamdi Jawaher
Published: December 2022

The aim of this study was to use the available tools in Learning Management Systems (LMS) environments in developing essay writing skills among the students of College of Science and Humanities Studies in Jubail, Saudi Arabia. This was done by constructing a digital content in the literary essay based on developing essay skills as a form of creative writing skills on the Blackboard platform. The participants of this study were 31 female undergraduate students from second year, Early Childhood Department. A list of essay skills was prepared as a form of creative writing to achieve the objectives of the study, and an Essay Writing Skills test was also prepared. This study adopted a quasi-experimental research design with one group (pre-post research design) to establish a cause-and-effect relationship between the independent variable (LMS) and the dependent variable (Essay writing skills). The results showed that the effectiveness of the designed unit had positive effects in developing essay writing skills in general and its sub-skills (Form, language, writing the introduction, presentation, and writing the conclusion) in particular with significant differences between pre- posttests in favor of the post- test. The study recommended using the teaching tools available within LMS environments to develop essay writing as a form of creative writing skills at all level of education in general, and at the undergraduate level in particular.
Türkiye’de Muhafazakârlık Algısı Üzerine Bir Araştırma
Authors: TÜRKÖZ Şükrü , TÜRKÖZ Elif Nagihan
Published: December 2022

Türkiye’de muhafazakârlık algısına ilişkin çalışmalar, muhafazakârlığın siyasal alandaki varlığı, toplumsal olarak konumlanışı ve özellikle dini boyutu perspektifinde ele alınmıştır. Özellikle son yıllarda muhafazakârlık algısına dair yapılan sınırlı sayıda araştırmanın güncelliğini yitirdiği tespiti yapılabilir. Çalışmanın temel amacı mevcut literatüre güncel verilere dayalı bir araştırma ile katkıda bulunmak olarak belirlenmiştir. Bu amaç doğrultusunda Akın vd. (2013) tarafından Konya ili özelinde muhafazakârlık algısını tespit etmek amacıyla geliştirilen ölçek, Türkiye genelinde uygulanacak şekilde yeniden düzenlenmiştir. Araştırma kapsamında Türkiye genelinde 737 kişiden veri toplanmıştır. Toplanan veriler SPSS-24 istatistik analiz programı aracılığıyla analize tabi tutulmuştur. Uygulanan faktör analizi sonucunda; 1-Değişime kapalılık 2- Milliyetçi ideoloji 3- Dindarlık başlıklarından oluşan toplamda üç alt boyut tespit edilmiştir. Faktörler ve değişkenler arasındaki ilişki, t-testi ve ANOVA analizlerinden elde edilen bulgular çerçevesinde yorumlanmıştır. Bu bağlamda, araştırma bulgularından elde edilen sonuca göre Türkiye’de genel olarak bireylerin muhafazakârlık algısının olumsuz bir anlam taşımadığı ifade edilebilir. Bununla beraber siyasal kimlik değişkeninin katılımcıların muhafazakârlık algısı üzerinde önemli oranda farklılaşmaya neden olduğu tespit edilmiştir. Ayrıca yaş grupları (kuşaklar) arasında da muhafazakârlık algısına dair belirgin farklılıklar mevcuttur.
The European Parliament’s Oversight of the Agencies of the Area of Freedom, Security and Justice. Where are we Now and Where are we Heading
Authors: Ruiz Díaz Lucas J.
Published: December 2022

Despite becoming a legislative actor comparable to the Council after the entry into force of the Lisbon Treaty, the European Parliament (EP) still lacks the power to effectively scrutinize the implementation of the European Union (EU) law and policies by the agencies of the Area of Freedom, Security and Justice (AFSJ). The case of Frontex has demonstrated the extent to which the successful protection of human rights is at stake when it comes to the activities at the external borders to halt irregular migration flows and other illegal cross-border activities. Abuses in this regard have been highlighted by several International Organizations and non-Governmental Organizations, forcing the EU Institutions to act accordingly. This paper analyzes the current state of affairs of the EP’s powers to scrutiny AFSJ agencies after the progressive enhancement of their mandates in the last decade, and suggests several recommendations to enhance the accountability of these agencies to fully respect the principles of the rule of Law and the values on which the EU is based.

Received: 31 July 2022Acepted: 28 September 2022
Cooperation Initiatives by EU Member States with Third Countries for the Control of Migratory Flows: The Case of the Memorandum of Understanding Between Malta and Libya
Authors: Calvo-Mariscal Lorena
Published: December 2022

Following the previous informal Italy-Libya and EU-Turkey agreements, Malta concluded its own Memorandum of Understanding with Libya to establish two coordination centres in Tripoli and Malta, fully funded by Malta in May 2020. In our paper, we will frame this non-legally binding agreement within the strategy of the EU and its Member States to cooperate with Libya in the deterritorialisation of migration management to reduce the number of migrants and asylum seekers arriving at Europe’s external borders. We will analyse the legal implications, both formal and material concerns, that exist in the application of this Memorandum, starting with the informalisation of cooperation and the deterritorialisation of migration management, and its effects on human rights and the possible international responsibility that it may entail. 

Received: 31 July 2022Accepted: 10 October 2022
Humedales mayores y menores de Córdoba: una historia de deterioro y extinción
Authors: Villadiego Lorduy Jorge , Negrete Barrera Víctor , Payares Ramos Pedro
Published: December 2022

Desde hace 40 años nos hacemos la misma pregunta. Al principio creímos que no era posible por la abundancia del recurso, la sensatez de grandes propietarios y comunidades campesinas pobres y la intervención protectora de los gobiernos. Con el paso de los años llegaron las primeras dudas. Cuando los propietarios decidieron intervenirlos y usufructuarlos para su beneficio; los gobiernos desecaron partes de ellos y entregaron fracciones como predios a campesinos sin tierra o como solares para viviendas en áreas periféricas urbanas, y algunas comunidades rurales, ante el dilema humedal o tierra, prefirieron la tierra por ser más segura y de posesión individual. Con el tiempo, ampliaron e intensificaron el proceso de pérdida de humedales. En la actualidad ya no tenemos dudas: si continúa al ritmo que lleva, el daño será cuantioso y las consecuencias difíciles de atender. Hay que decidir pronto.
Contemplaciones literarias: estudios y letras en la investigación formativa
Authors: Piedrahíta Lara Fáber Andrés , Mejía Holguín Danny Jean Paul
Published: December 2022

Este libro es el producto de un proceso de formación y de investigación en el escenario de los semilleros “Aquenarre” y “El hombre de arena” en el que la literatura ocupa un lugar privilegiado desde el cual se desatan las preguntas en relación con las transformaciones que acontecen en las obras literarias como “El cuento de la criada”, “El guardián entre centeno”, “Lolita”, “Cándido y el optimismo”. Aunque también se pregunta por la creación literaria a partir del proceso investigativo. Ambas perspectivas propenden por la formación de un maestro investigador con una conciencia literaria y pedagógica que, en el ámbito de su desempeño, le permita desatar procesos que favorezca la formación de niños, niñas y jóvenes. Es por esta razón que este libro pretende mostrar este pliegue de los estudiantes de los semilleros en la esfera de la escritura; por un lado, como alguien que lee, piensa y analiza la literatura como objeto de su formación; por otro lado, como sujeto que propone didácticas teniendo como referencia esencial a la literatura y como creador historias desde las obras, las heteronomías y el hipertexto literario.
Ciudad y vivienda moderna: 1940-1970. La institucionalidad como factor de impulso para el desarrollo urbano de Medellín
Authors: Cuervo Calle Juan José , Sánchez Holguín Victoria Eugenia , Sañudo Vélez Luis Guillermo , Schnitter Castellanos Patricia
Published: December 2022

Este libro presenta un estudio acerca de la ciudad y la vivienda en Colombia, concretamente acerca de la ciudad de Medellín entre los años 1940 y 1970, periodo destacado por el despliegue de soluciones urbanas y arquitectónicas de alta calidad, las cuales iniciaron su declive a partir del segundo quinquenio de 1970. Se reconocen las contribuciones de diversos actores que favorecieron el desarrollo urbano, así como el pensamiento y la práctica urbanística para la ciudad. Se revisa el impacto de la Sociedad de Mejoras Públicas y del Instituto de Crédito Territorial, y de la intervención particular de urbanistas y arquitectos locales e internacionales, entre los que se identifican la firma norteamericana Town Planning Associates con los arquitectos Wiener y Sert, con quienes devino una particular idea de lo moderno.
Optimización del manejo de inventarios de alimentos y bebidas en el sector hotelero por medio del desarrollo de modelos econométricos enfocados en el pronóstico de ventas. Caso de estudio: Hotel Tequendama
Authors: Triana Mora Elkin
Published: December 2022

En el desarrollo de la razón social de un hotel, el departamento de compras es una unidad de negocio muy importante, pues de este depende el satisfacer las demandas complementarias del hospedaje, en especial, las relacionadas con alimentos y bebidas, ya que estas son las más rentables. En este artículo se pretende aportar a la eficiencia operacional de los hoteles con la predicción de las ventas de alimentos y bebidas de cuatro hoteles con características similares al del caso de estudio. Mediante modelos econométricos, se estandariza una técnica estadística que permita ajustar el inventario perecedero según los resultados de la predicción, para así ser más eficientes en costos operativos y en la administración del Hotel Tequendama, por ser este hotel el caso de estudio de la presente investigación.
Diagnóstico de la gestión de la inocuidad en servicios gastronómicos del destino turístico Varadero, Cuba
Authors: García Pulido Yadrián Arnaldo , Frías Jiménez Roberto Argelio , Medina León Alberto Arnaldo
Published: December 2022

La investigación tuvo como objetivo diagnosticar la gestión de la inocuidad de los servicios gastronómicos en el destino turístico de Varadero, Cuba. A partir de una muestra superior al 50 % de los servicios existentes, se valoraron 116 indicadores para el diagnóstico higiénico-sanitario mediante el índice global de cumplimiento de los prerrequisitos higiénico-sanitarios (IGHS). Así mismo, se analizó el comportamiento de las dimensiones mediante la matriz W-X, se determinaron los clústeres existentes y se correlacionaron los resultados con la preparación de los recursos humanos y la forma de gestión. Las dimensiones más afectadas resultaron ser el control de vectores, la elaboración de alimentos y el mantenimiento. Los indicadores evaluados se cumplieron en un 87 %. Se evidenció una relación moderadamente fuerte entre (a) la capacitación de los recursos humanos y la forma de gestión y (b) el nivel de gestión de la inocuidad.
Understanding Student Navigation Patterns in Game-Based Learning
Authors: Liu Min , Cai Ying , Han Songhee , Shao Peixia
Published: December 2022

Research on learning analytics (LA) has focused mostly at the university level. LA research in the K–12 setting is needed. This study aimed to understand 4,115 middle school students’ learning paths based on their behavioural patterns and the relationship with performance levels when they used a digital learning game as their science curriculum. The findings showed significant positive relationships between various tool uses and performance measures and varied tool use patterns at different problem-solving phases by high- and low-performing students. The results indicated that students who used tools appropriately and wisely, given the phase they were at, were more likely to succeed. The findings offered an insightful glimpse of learners’ navigation patterns in relation to their performance and provided much-needed empirical evidence to support using analytics for game-based learning in K–12 education. The findings also revealed that log data cannot explain all learners’ actions. Implications for both research and practice are discussed.
Ciclo de vida profissional dos professores do Distrito Federal: temporalidade e condições de trabalho
Authors: Silva Kátia Augusta Curado Pinheiro Cordeiro da , Cruz Shirleide Pereira da Silva
Published: December 2022

Este artigo visa analisar o ciclo de vida profissional docente no contexto do Distrito Federal (Brasil), considerando as diferentes fases indicadas pela literatura nacional e internacional (Huberman, 2000, Marcelo Garcia, 2019; Vaillant, 2008; Papi, 2011). A metodologia trata da análise dos dados da relação entre a temporalidade e as condições de trabalho. O estudo é resultado de uma pesquisa com professores ingressantes/iniciantes da educação básica na rede de Educação do Distrito Federal. Foram utilizados como fonte de dados 403 questionários e 70 entrevistas. Teoricamente, este estudo referencia-se em Huberman (1989, 1992 e 1995), Duarte (2013), Marx (1999), Luckas (1990), entre outros. Elegemos a relação entre estágios da vida profissional e o envolvimento com o trabalho docente. O resultado apresenta que as marcas temporais têm evidências no ciclo de vida profissional, mas que as marcas de vivência (perjivânie) constituem a vida profissional dos professores do Distrito Federal. A síntese que emerge apresenta as dificuldades e descobertas dos professores iniciantes/ingressantes, intrinsecamente ligadas às suas condições e as formas de realização de trabalho. Entende-se que a construção de novas relações e condições de trabalho podem possibilitar o enfrentamento coletivo das condições objetivas e subjetivas, que obstaculizam o processo de constituição de uma individualidade para si.
Dilemas e dificuldades de coordenadoras pedagógicas iniciantes no ensino público do estado do Paraná
Authors: Garbosa Helena Gutoch , Papi Silmara Gomes de Oliveira
Published: December 2022

Esta pesquisa objetivou investigar dilemas e dificuldades de professores iniciantes na coordenação pedagógica escolar, no ensino público estadual de uma cidade paranaense. É no período de iniciação, que se refere aos cinco primeiros anos de experiência, que se estabelecem as bases para o exercício profissional futuro. Realizou-se um estudo de caso com 11 coordenadoras iniciantes, com experiência de até cinco anos nessa função. Os instrumentos de coleta de dados foram a entrevista e um caderno de registros livres. Verificou-se que as coordenadoras iniciantes passam por dilemas e dificuldades relacionados à organização do trabalho pedagógico, à relação com o corpo docente, às questões que envolvem os alunos e suas famílias e à formação para a atuação na coordenação pedagógica. Ressalta-se, assim, a relevância de que haja apoio e formação específicos para coordenadores pedagógicos iniciantes, a fim de se favorecer a sua atuação no âmbito escolar e a permanência na função.
Inserção profissional do coordenador pedagógico: parceria colaborativa entre iniciantes e experientes a partir da pesquisa-formação
Authors: Gomboeff Ana Lucia Madsen , Passos Laurizete Ferragut
Published: December 2022

As parcerias colaborativas têm se mostrado potentes para apoiar o processo de inserção dos profissionais que iniciam numa nova função. O artigo trata de uma ação de indução profissional realizada junto a um grupo de coordenadores pedagógicos iniciantes com vistas a contribuir para a superação dos desafios vividos em seu processo de inserção profissional junto às escolas de ensino básico. Para o presente texto será apresentado um recorte dos dados da pesquisa que reuniu 25 professores aprovados em concurso público para coordenador pedagógico sem experiência na função, os iniciantes, e dezessete coordenadores com experiência de até três anos, os experientes, e cuja parceria colaborativa se deu a partir de uma pesquisa-formação. Para a produção dos dados, utilizou-se a transcrição dos encontros formativos (oito com cada grupo), incluindo o conteúdo do Chat, bem como a transcrição dos dois grupos de discussão e das conversas e trocas espontâneas pelo WhatsApp e dados de um questionário de caracterização. A análise dos dados teve inspiração na Análise de Prosa. Os resultados indicam que a parceria colaborativa iniciante-experiente traz subsídios para que o primeiro enfrente e supere os desafios do início da carreira e também contribui para o aprimoramento da prática profissional do experiente.
RESENHA: Aspectos da gestão educacional brasileira
Authors: Anjos Keila Simone dos
Published: December 2022

Nessa obra, Saviani (2009) reflete sobre o Plano de Desenvolvimento da Educação (PDE), lançado em abril de 2007, onde busca entender em que medida o PDE é capaz de enfrentar a problemática da qualidade da Educação, no seu lócus de atuação, na Educação Básica. Faz um estudo da sua composição, identificando as ações que o desdobram. O texto está organizado sistematicamente em momentos diferentes nos quais apresenta aspectos da Educação e os discute criticamente, como: a definição do PDE; a sua comparação com o Plano Nacional da Educação (PNE 2014-2024); a qualidade da Educação; os aspectos técnicos, financeiros e os recursos humanos, no que concerne à questão salarial dos professores.
Percepções discentes sobre práticas escolares para a construção do projeto de vida no ensino médio
Authors: Grimes Camila , Booz Flávio , Fermino Rozane
Published: December 2022

Com a implementação do Novo Ensino Médio em Santa Catarina, o Projeto de Vida se consolida como unidade curricular embora não seja temática nova na Educação Básica. Neste contexto surge a presente pesquisa, buscando analisar as percepções de estudantes do Ensino Médio em uma escola da rede pública do estado de Santa Catarina, a partir de práticas escolares voltadas a incentivar a construção de seu Projeto de Vida. Para tanto, foram analisados os diários reflexivos de estudantes engajados nas práticas: Estudante Egresso, Visitas em Instituições de Ensino Superior e Simulado do Exame Nacional do Ensino Médio, que buscam criar estes espaços de construção do Projeto de Vida mesmo antes do Novo Ensino Médio. Relacionando as problemáticas do ensino médio, as proposições legais e as vozes dos sujeitos, encontram-se indicativos de que estas práticas escolares voltadas para a cidadania e o trabalho são essenciais para a construção de Projetos de Vida.
Protagonismo Juvenil e Mídias Digitais
Authors: Cardoso Macilene Borges da Silva , Souza Elaine Javorski , Santos Filho Alexandre Silva dos
Published: December 2022

Este artigo pretende analisar as práticas pedagógicas, a partir da perspectiva da media literacy, no período pandêmico da COVID-19 na escola estadual de ensino médio Macário Dantas, em São Geraldo do Araguaia, no Pará. A base teórica está fundamentada nos estudos culturalistas do uso da mídia de Bauer (2011), Martino e Menezes (2012), Lemos e Lévy (2010) e Buckingham (2010). O estudo interdisciplinar apoia-se no discurso da comunicação, da educação, da sociologia e da filosofia, para responder ao problema proposto. A pesquisa é qualitativa, tipo etnográfica, com abordagem metodológica de grupo focal com professores da escola. A abordagem busca compreender o entendimento da media literacy por parte dos docentes; a percepção do fenômeno da comunicação digital na vida das juventudes; e aplicação de práticas educativas com mídias digitais fomentadoras do protagonismo juvenil.
O uso pedagógico de tecnologias digitais da informação e comunicação na educação infantil de escolas públicas
Authors: Costa Renata Luiza da , Fortunato Divina Célia Stival
Published: December 2022

As Tecnologias Digitais da Informação e Comunicação (TDIC) estão próximas de pessoas adultas e de crianças, e de diferentes formas nos dias atuais. Por exemplo, em eletrodomésticos e brinquedos. Devido a isso e a outras razões, nos últimos anos, diferentes governos têm incentivado o uso de TDIC nas escolas, desde a Educação Infantil. A partir dessa realidade, essa pesquisa foi organizada com o objetivo de verificar as percepções de gestores/as e professores/as a respeito das TDIC e de seu uso nas práticas pedagógicas da sala de aula de Educação Infantil. Buscou-se responder a seguinte questão-problema: De que forma as TDIC têm sido compreendidas e utilizadas na Educação Infantil em escolas públicas? Para alcançar esses objetivos, fundamentados no método Materialista Histórico-Dialético, foi desenvolvida pesquisa com coleta de dados envolvendo entrevistas e questionários com participantes de quatro escolas municipais de Educação Infantil da cidade de Inhumas, em Goiás. Foi possível inferir que há um reconhecimento quanto à pertinência e o desejo pela integração e uso de TDIC em situações pedagógicas da Educação Infantil, mas sua concretização é insipiente. Em torno de 30% dos participantes da pesquisa inspiram um discurso instrumental e/ou determinista a respeito das TDIC, associando a inovação pedagógica somente a esses usos. Outra parte reconhece tais tecnologias como importante parte cultural, sem ser o determinante de tal inovação. As dificuldades mais citadas para tal integração foram falta de melhorias na infraestrutura tecnológica das escolas, insuficiente formação continuada de professores e pouco comprometimento dos governantes com a contínua manutenção desses eixos na escola.
O servidor técnico-administrativo em educação cotista racial na UFSC
Authors: Silva Artur Rocha , Búrigo Carla Cristina Dutra
Published: December 2022

O presente artigo é resultante de uma pesquisa sobre o servidor técnico-administrativo em educação cotista racial na UFSC. A pesquisa tem como objetivo compreender como se materializa as diretrizes da Política Institucional de Acesso, Inclusão e Permanência dos Servidores Técnico-Administrativos em Educação (STAE) Cotistas Raciais na Universidade Federal de Santa Catarina (UFSC), a partir do olhar dos gestores. Para fundamentar esta pesquisa, são apresentadas a revisão bibliográfica da Política Institucional e a Política Pública de Acesso, Inclusão e Permanência de Servidores Cotistas Raciais no Serviço Público. A pesquisa caracteriza-se por ser qualitativa, com aplicação de entrevistas semiestruturadas com gestores ocupantes de cargos estratégicos na Instituição. Os resultados apontam que, ao mesmo tempo que a Universidade é inclusiva conforme a legislação vigente de ingresso de servidores cotistas raciais, a mesma nega a inclusão por falta de uma Política Institucional de Inclusão e Permanência de Servidores cotistas raciais na Instituição.
A experiência de morar na residência universitária da UVA a partir da narrativa (auto)biográfica de um acadêmico
Authors: Astigarraga Andrea Abreu , Oliveira Bruna Géssica , Souza Rosely Monte
Published: December 2022

A Universidade Estadual Vale do Acaraú – UVA tem mais de cinquenta anos de existência. Mas, o Programa de Assistência Estudantil – PAE – do Governo do Estado do Ceará, foi criado há quatro anos. Qual o impacto desta experiência na vida dos acadêmicos? Portanto, esta pesquisa consiste na escuta e análise da narrativa (auto)biográfica de um acadêmico com a finalidade de identificar as dificuldades e facilidades da sua experiência formativa pessoal e acadêmica como morador da residência universitária da UVA. O aporte teórico foi baseado principalmente em Coulon (2017) com o conceito de permanência universitária; assim como Sampaio (2015) e Silva (2019), Larossa (2011; 2002); Astigarraga (2010; 2017), Bragança (2011) e Delory-Momberger (2006). Verificamos que a universidade é um espaço formativo importante, pois facilitou a passagem da graduação à pós-graduação (mestrado), após o acadêmico superar as dificuldades de viver longe da família e de ampliar a sociabilidade dentro da residência com os colegas. Para isso, o PAE – principalmente residência e restaurante universitários – foi essencial no processo de acesso, permanência e conclusão de um acadêmico da classe trabalhadora, oriundo de um município, no entorno de Sobral, onde a UVA está situada. Este resultado poderá ser verificado em uma pesquisa posterior, amplificada com mais acadêmicos/as do mesmo contexto sócio-econômico-cultural.
Criterios para la selección y uso de simulaciones en un grupo de profesores de Ciencias Naturales en formación
Authors: Bizzio María De los Ángeles , Guirado Ana María , Maturano Carla Inés
Published: December 2022

En este trabajo se indagan las opiniones de estudiantes de profesorado en Física y en Química de la Universidad Nacional de San Juan (Argentina) sobre su experiencia en la utilización de simulaciones, la valoración que hacen de estas y los criterios que considerarían para su selección y uso. La muestra está formada por estudiantes que cursaron didácticas específicas durante 2020. Se diseñó un cuestionario para recoger los datos y, a partir de las respuestas, se construyeron categorías para su análisis. Los resultados muestran que la experiencia de los participantes se asocia a un uso escaso de las simulaciones, lo que justificaría la necesidad de profundizar en el conocimiento y utilización de las mismas como herramienta de aprendizaje y como recurso para la enseñanza desde la formación docente inicial.
La contribución de la técnica de enseñanza del “seminario” al desarrollo cognitivo de los estudiantes de contabilidad
Authors: Urrutia-Heinz Michele , Costa-Quintana Alexandre , Capuano-da-Cruz Ana
Published: December 2022

Este estudio busca realizar un análisis sobre el uso de la técnica de seminario, una técnica activa, como herramienta de complementación al método tradicional, influye en el nivel de desarrollo cognitivo del alumnado. En términos metodológicos, se realizó un cuasi experimento con estudiantes del cuarto semestre de Ciencias Contables de una institución federal de educación superior. Los resultados mostraron que el uso del seminario, con respecto a los niveles "recordar, aplicar y analizar", fue capaz de influir en el desarrollo cognitivo. Se concluye que el uso de la técnica del seminario, como instrumento complementario, puede influir en el nivel de desarrollo cognitivo alcanzado por el alumnado de contabilidad.
Dialéctica y transformación: Un encuentro entre Moacir Gadotti y Karl Marx
Authors: Augusto Laranja Mirza , Alves Oliveira Rita De Cássia
Published: December 2022

La obra de Moacir Gadotti, uno de los mayores pensadores críticos de la educación brasileña en la actualidad, posee un gran potencial para impulsar proyectos políticos alternativos. Su libro Concepção Dialética da Educação fue publicado por primera vez en el 1983. Así como la dialéctica en Marx refleja una concepción del hombre y de la sociedad, Gadotti también se posiciona claramente comprometido con el punto de vista del trabajador. Estas notas presentan su trabajo acerca de la dialéctica en la historia y la concepción de que "se destaca en América Latina como una nueva arma de lucha".
The effect of critical thinking-infused paragraph writing instruction on university first-year students’ intellectual traits
Authors: Bekele Getachew , Olana Tamiru , Ali Sherif
Published: December 2022

The purpose of this study was to investigate the effect of critical thinking-infused paragraph writing instruction on enhancing university first-year L2 students’ intellectual traits. The study involved two randomly selected first-year Social Science stream classes. The researchers employed the embedded design in the study because they mainly used quantitative data augmented by qualitative data. The researchers analyzed the questionnaire data and the interview data using the one-way between groups ANCOVA and thematic analysis method respectively. The finding of the questionnaire data analysis indicated that participants in the treatment group were better in their intellectual traits scores. The result of the interview data analysis also revealed that participants in the treatment group had a better interest in using elements of thought and intellectual traits after the intervention. Hence, integrating critical thinking instruction into APW lessons needs to be considered among all stakeholders to enhance university first-year EFL students’ intellectual traits.
Keywords: Argumentative paragraph; critical thinking; instruction; intellectual traits; university first-year students.