bluuebunny/crossref_metadata_2025 huggingface dataset:
Los Institutos Tecnológicos en el Sistema de Innovación Regional Valenciano. Propuesta de un modelo contingente de estrategia y desempeño
Authors: Albors-Garrigós José , Segarra María del Val , Rincón-Díaz Carlos A.
Published: September 2021

Los Institutos Tecnológicos o RTOs, se posicionan en España dentro los diversos agentes especializados en proporcionar servicios en I+D para la industria. Su papel en los Sistemas Nacionales de Innovación como agentes de transferencia de tecnología para las empresas, ha despertado el interés académico durante la última década. El objetivo de esta investigación es desarrollar un modelo contingente que relacione variables organizacionales y variables de contexto, respecto al desempeño innovador y la capacidad de transferir tecnología de los Institutos Tecnológicos a las PYMES. Esta investigación se basó en el estudio de catorce Institutos Tecnológicos de la Comunidad Valenciana, que colaboran con diversos sectores industriales, con el objeto de establecer una relación adaptativa entre el entorno industrial, estrategia, estructura organizacional y otros factores que influyen en el proceso de transferencia de tecnología a las PYMES.
El efecto de los costes de transacción en los mercados de CO2: un modelo basado en agentes artificiales
Authors: Posada Marta , Hernández Cesáreo
Published: September 2021

El intercambio en los mercados de CO2 se realiza mediante una subasta doble continua. Los experimentos en economía experimental han demostrado que la eficiencia en estos mercados es casi del 100%. Sin embargo, la eficiencia disminuye cuando se introducen costes de transacción. En este trabajo analizamos la sensibilidad de estos mercados cuando existen costes de transacción utilizando el modelado basado en agentes, con el objetivo de evaluar la influencia que tiene el comportamiento de los agentes en el mercado. Hemos encontrado que los costes de transacción reducen la eficiencia del mercado, en concordancia con los resultados teóricos y experimentales. Sin embargo, nuestro modelo aporta una nueva explicación relacionada con el comportamiento de los agentes que es interesante considerar para el diseño de mercados de CO2.
Ambigüedad Organizacional de la Planeación Estratégica. El Caso de la Universidad Autónoma de Sinaloa, región centro-norte
Authors: Vargas Hernández José Guadalupe , López López José De Jesús
Published: September 2021

Este trabajo tiene por objetivo determinar el grado de influencia de la planeación estratégica en el combatea la ambigüedad organizacional en la Universidad Autónoma de Sinaloa en su región Centro-Norte. La investigaciónes experimental y aplica la escala de Likert como instrumento de campo. Entre los hallazgos importantes, esta investigación encuentra que la organización tiene que buscar acoplar firmemente los objetivos e intereses de sus participantes para encontrar respuestas más completas en la planeación estratégica, que requiere mayor racionalidad, pero en las condiciones descritas, ésta encuentra grandes limitaciones, es decir, cada vez puede estar más lejos de cumplirse el objetivo con las acciones tomadas, ya que el camino seguido para hacer esto, no es claro.
La implementación del principio de flexibilidad de la directiva IPPC: metodología para el cálculo de los valores límite de emisión y la evaluación de mejores técnicas disponibles en la concesión de las autorizaciones ambientales integradas
Authors: Vázquez Calvo Víctor Luis , Giner Santonja Germán , García Cañaveral Aurora
Published: September 2021

Desde la entrada en vigor de la Ley de Prevención y Control Integrados de la Contaminación (IPPC, en sus siglas en inglés) en 2002, en España se han constatado numerosas dificultades para integrar las características técnicas de la instalación y las condiciones locales del medio ambiente en la determinación de los Valores Límite de Emisión (VLE) de las Autorizaciones Ambientales Integradas (AAI). Para hacer frente a este problema, en este artículo se integran dos metodologías complementarias que permiten calcular los Valores Límite de Emisión (VLE) y determinar cuáles son las Mejores Técnicas Disponibles (MTD) más adecuadas para cumplir con los mismos, facilitándose así la implementación del principio de flexibilidad por parte de las autoridades competentes.
Método para el gobierno de las tecnologías de la información basado en la modelización empresarial
Authors: Hontoria Eloy , Fernández Antonio , De la Fuente María Victoria , Ros Lorenzo
Published: September 2021

En el actual entorno de continua evolución de las tecnologías de la información y las comunicaciones (TIC), y como respuesta a los conceptos referentes al Gobierno de las Tecnologías de la Información (TI), en el presente trabajo se define y diseña un método que posibilite el cambio en una organización hacia los nuevos paradigmas de diseño y gestión de las TI, y sobre todo en su interacción con las redes interorganizacionales. La aplicación del método definido sobre la organización del servicio de las tecnologías de la información de una Universidad ha posibilitado la integración de distintas herramientas (por ejemplo modelo GTI4U, Modelo de Madurez, Metodología de Modelización Empresarial) en el proceso de gobierno de las TI, merced a la modelización de los procesos de negocio y los flujos relacionados con ello.
Empresas tecnológicas creadas en España entre los años 2000 y 2010: perfil del emprendedor e importancia de la ayuda pública en su desarrollo
Authors: Fernández Doblado Juan Carlos , Hidalgo Antonio
Published: September 2021

Este trabajo pretende contribuir al conocimiento de las nuevas empresas de base tecnológica (NEBT) creadas en España analizando aspectos relativos a su distribución geográfica, sectorial, tamaño, estructura financiera, protección de resultados, participación en programas de I+D o perfil de sus emprendedores. Para ello lleva a cabo un estudio descriptivo de las empresas que recibieron ayudas de la iniciativa Neotec concedidas por el Centro para el Desarrollo Tecnológico Industrial (CDTI) a este tipo de compañías entre los años 2000 y 2010. Por otro lado, analiza el perfil de los emprendedores tecnológicos que han creado empresas en España en la última década.
Estrategias de cumplimentación de pedidos en el sector de fabricación de bienes de equipo. Un estudio empírico
Authors: Sanchís Raquel , Saiz Eduardo , Castellano Eduardo , Poler Raul
Published: September 2021

El sector de bienes de equipo se caracteriza por fabricar productos complejos y con un alto grado de personalización. La elección de la estrategia de cumplimentación de pedidos que permita satisfacer de forma eficiente las necesidades específicas de sus clientes se convier te en una decisión estratégica de gran importancia. Como respuesta a esta demanda, el presente estudio analiza la relación entre diferentes estrategias de cumplimentación de pedidos (Ingeniería Bajo Pedido, Fabricación Bajo Pedido, Montaje Bajo Pedido y Fabricación Contra Stock) y el tipo de producto según su grado de personalización (único, personalizado, configurable y estándar).
Contrastes entre spin-offs universitarios y empresas de base tecnológica independientes: el caso del Parque Científico de Madrid
Authors: Molero Zayas José , Maldonado Carrillo Georgina
Published: September 2021

Comúnmente se cree que las empresas de base tecnológica son iguales y las políticas públicas enfocadas a este colectivo no contemplan sus diferencias. Sin embargo, estudios empíricos demuestran que las empresas de base tecnológica responden a su entorno de una manera distinta y que tienen necesidades diferenciadas dependiendo de su origen. El propósito de esta investigación es contribuir a la identificación de las diferencias entre las empresas de base tecnológica de creación independientes o provenientes de una empresa (spin-off empresarial) y las empresas de base tecnológica que surgen de la universidad (spinoff universitario) o de un centro público de investigación.
Grupos estratégicos: su influencia en el desempeño de la industria bancaria venezolana y su relación con la cobertura geográfica
Authors: Flores Márquez Sandra Lizbeth , Flores Gutiérrez José Ovidio
Published: September 2021

El objetivo de esta investigación fue determinar los grupos estratégicos de la industria bancaria venezolana y su influencia sobre el desempeño en el sector, así como su relación con la cobertura geográfica, durante el primer semestre del año 2008. Los resultados más relevantes fueron los siguientes: 1) Los grupos estratégicos combinan patrones de conductas. 2) Las diferentes estrategias adoptadas por los bancos no se expresaron en una diferenciación en los niveles de resultados económicos y financieros. 3) Los grupos bancarios llevan a cabo una estrategia de cobertura geográfica relacionada con la estrategia financiera.
Antecedentes del comportamiento colaborativo en la empresa: el caso de los blogs corporativos
Authors: Fernández-Cardador Pedro , Agudo-Peregrina Ángel F. , Hernández-García Ángel
Published: September 2021

La implementación exitosa de herramientas colaborativas en las empresas exige de los empleados un comportamiento colaborativo adecuado. Este trabajo presenta una caracterización del comportamiento colaborativo a través del uso de blogs corporativos, identificando sus antecedentes y analizando la influencia relativa de éstos en el comportamiento colaborativo de 86 empleados del departamento de Sistemas de Información de una gran empresa industrial localizada en España. Los resultados indican que entre los antecedentes identificados, el altruismo, los objetivos comunes y la confianza mutua predicen positivamente el comportamiento colaborativo, mientras que el sentido de pertenencia a una comunidad, la reputación y la reciprocidad no lo hacen.
Planificación estratégica de la capacidad en una empresa del sector alimentación
Authors: Companys-Pascual Ramón , Ribas-Vila Imma , Bautista-Valhondo Joaquín
Published: September 2021

En esta comunicación se describe el procedimiento propuesto a una empresa del sector de la alimentación para planificar la capacidad productiva de las diferentes plantas aprovechando el cambio de ubicación forzoso de una de ellas. El caso de estudio puede servir de referencia a otros profesionales que se enfrenten a una situación semejante.
PENGARUH HARGA DAN LOKASI TERHADAP KEPUTUSAN PEMBELIAN DI TOKO PODO JODO
Authors: Megawati Christine , Marlina Maria Assumpta Evi
Published: September 2021

Toko Podo Jodo bergerak di bidang retail yang berlokasi di Surabaya, yang menjualberbagai barang kebutuhan pokok, Toko Podo Jodo sudah berdiri sejak tahun 1996 dan mulaiberoperasi pada tahun 1999. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh hargadan lokasi apakah mempengaruhi keputusan pembelian di Toko Podo Jodo. Faktor harga danlokasi memiliki peranan penting dalam menentukan keputusan pembelian pelanggan Toko PodoJodo. Penelitian ini menggunakan pendekatan kualitatif dengan metode regresi linier berganda.Teknik sampling yang akan digunakan adalah purposive sampling. Temuan dalam penelitian inibahwa harga dan lokasi berpengaruh signifikan terhadap keputusan pembelian.Kata kunci: Harga, lokasi, keputusan pembelian
PENGARUH USER-GENERATED CONTENT (UGC) DAN KUALITAS PRODUK TERHADAP MINAT BELI KONSUMEN DAPUR MBOK SARMINAH
Authors: Putri Vania Jovita
Published: September 2021

Latar belakang dari penelitian ini berdasarkan permasalahan pada penjualan dan hasilsurvei kepada calon konsumen Dapur Mbok Sarminah yang berada di kota Suabaya atas usergeneratedcontent (UGC), kualitas produk, dan minat beli terhadap konsumen Dapur MbokSarminah. Tujuan penelitian ini adalah untuk mengetahui apakah user-generated content dankualitas produk berpengaruh terhadap minat beli konsumen Dapur Mbok Sarminah. Populasidalam penelitian ini adalah 100 orang, sampel yang digunakan dalam penelitian ini sebanyak100 orang dengan teknik purposive sampling dengan kriteria orang yang mengetahui produkprodukDapur Mbok Sarminah dan yang pernah melakukan pembelian produk-produk DapurMbok Sarminah. Teknik pengumpulan data yang digunakan adalah menggunakan kuisioner dandianalisis dengan analisis kuantitatif dengan SPSS versi 20, sedangkan teknik analisis data yangdigunakan adalah menggunakan analisis regresi linier berganda. Hasil dari penelitian ini adalahvariabel user-generated content (UGC) (X1) dan variabel kualitas produk (X2) berpengaruhsignifikan positif terhadap minat beli konsumen Dapur Mbok Sarminah (Y).Kata kunci: User-Generated Content (UGC), Kualitas Produk, Minat Beli.
Bases constitucionales del derecho administrativo uruguayo. / Constitutional bases of uruguayan administrative law.
Authors: Pezzutti Miguel
Published: September 2021

El artículo tiene por objetivo identificar los vínculos del Derecho Administrativo con el Derecho Constitucional en Uruguay, efectuando además algunas referencias comparativas con el Derecho Argentino. Enfoca en las raíces constitucionales de la Administración Pública en el Derecho Uruguayo basadas en la idea de centralidad de la persona humana. Analiza las fuentes del Derecho Administrativo reconocidas en el texto constitucional, así como importancia de los Principios Generales en la construcción de un sistema organizado y coherente. Con relación a la organización, se analiza la posición institucional del Poder Ejecutivo y las distintas formas de gestión administrativa, en particular las descentralizadas. Partiendo de los principios generales, se analiza la normativa relativa a la actividad administrativa y la importancia de los medios de defensa de las situaciones jurídicas de los particulares, así como las bases del servicio público.AbstractThe article aims to identify the links between Administrative Law and Constitutional Law in Uruguay, also making some comparative references with Argentine Law. It focuses on the constitutional roots of Public Administration in Uruguayan Law based on the idea of centrality of the human person. It analyzes the sources of Administrative Law recognized in the constitutional text, as well as the importance of the General Principles in the construction of an organized and coherent system. Regarding the organization, the institutional position of the Executive Branch and the diferent forms of administrative management,  particularly  decentralized ones, are analyzed. Starting from the general principles, the regulations relating to administrative activity and the importance of the means of defense of the legal situations of individuals are analyzed, as well as the bases of public service.
Analysis of Mechanical Adhesion Climbing Robot Design for Wind Tower Inspection
Authors: Mondal Shyamal Chandra , Marquez Patricio l. C. , Tokhi Mohammad Osman
Published: September 2021

Mmaintenance of wind turbine farms is a huge task, with associated significant risks and potential hazard to the safety and wellbeing of people who are responsible for carrying the tower inspection tasks. Periodic inspections are required for wind turbine tower to ensure that the wind turbines are in full working order, with no signs of potential failure. Therefore, the development of an automated wind tower inspection system has been very crucial for the overall performance of the renewable wind power generation industry. In order to determine the life span of the tower, an investigation of robot design is discussed in this paper. It presents how a mechanical spring-loaded climbing robot can be designed and constructed to climb and rotate 360° around the tower. An adjustable circular shape robot is designed that allows the device to fit in different diameters of the wind generator tower. The rotational module is designed to allow the wheels to rotate and be able to go in a circular motion. The design further incorporates a suspension that allows the robot to go through any obstacle. This paper also presents afiniteelement spring stress analysis and Simulink control system model to find the optimal parameters that are required for the wind tower climbing robot.
VLBI Data Processing on Coronal Radio-sounding Experiments of Mars Express
Authors: Ma Maoli , Calvés Guifré Molera , Cimò Giuseppe , Zhang Peijin , Xiong Ming , Li Peijia , Kummamuru Pradyumna , Chu Zhanghu , Jiang Tianyu , Xia Bo , Tetsuro Kondo , Tong Fengxian , de Vicente Pablo , Quick Jonathan , Zhang Hua , Chen Zhong
Published: September 2021

The ESA’s Mars Express solar corona experiments were performed at two solar conjunctions in the years 2015 and 2017 by a number of radio telescopes in the European VLBI Network. This paper presents the methods to measure the frequency and phase fluctuations of the spacecraft radio signal, and the applications to study the characteristics of the plasma turbulence effects on the signal at a single station and at multiple stations via cross correlation. The power spectra of the frequency fluctuations observed between 4.9 and 76.3 R
s have a power-law shape close to a Kolmogorov spectrum over the frequency interval ν
lo < ν < ν
up, where the nominal value of ν
lo is set to 3 mHz and ν
up is in the range of 0.03–0.15 Hz. The rms of the frequency fluctuations is presented as a function of the heliocentric distance. Furthermore, we analyze the variations of the electron column density fluctuations at solar offsets 4.9 R
s and 9.9 R
s and the cross-correlation products between the VLBI stations. The power density of the differential fluctuations between different stations decreases at ν < 0.01 Hz. Finally, the fast flow speeds of solar wind >700 km s−1 are derived from the cross correlation of frequency fluctuations at ν < 0.01 Hz. The fast flow speeds of solar wind correspond to the high heliolatitude of the coronal region that the radio rays passed. The VLBI observations and analysis methods can be used to study the electron column density fluctuations and the turbulence at multiple spatial points in the inner solar wind by providing multiple lines of sight between the Earth and the spacecraft.
The SAMI Galaxy Survey: Detection of Environmental Dependence of Galaxy Spin in Observations and Simulations Using Marked Correlation Functions
Authors: Rutherford Tomas H. , Croom Scott M. , van de Sande Jesse , del P. Lagos Claudia , Bland-Hawthorn Joss , Brough S. , Bryant Julia J. , D’Eugenio Francesco , Owers Matt S.
Published: September 2021

The existence of a kinematic morphology–density relation remains uncertain, and instead stellar mass appears the more dominant driver of galaxy kinematics. We investigate the dependence of the stellar spin parameter proxy

λ

R

e

on environment using a marked cross-correlation method with data from the Sydney Australian Astronomical Observatory Multi-object Integral-field Spectrograph (SAMI) Galaxy Survey. Our sample contains 710 galaxies with spatially resolved stellar velocity and velocity dispersion measurements. By utilizing the highly complete spectroscopic data from the Galaxy and Mass Assembly Survey, we calculate marked cross-correlation functions for SAMI galaxies using a pair count estimator and marks based on stellar mass and

λ

R

e

. We detect an anticorrelation of stellar kinematics with environment at the 3.2σ level, such that galaxies with low

λ

R

e

values are preferably located in denser galaxy environments. However, a significant correlation between stellar mass and environment is also found (correlation at 2.4σ), as found in previous works. We compare these results to mock observations from the cosmological Evolution and Assembly of Galaxies and their Environments (EAGLE) simulations, where we find a similar significant

λ

R

e

anticorrelation with environment, and a mass and environment correlation. We demonstrate that the environmental correlation of

λ

R

e

is not caused by the mass–environment relation. The significant relationship between

λ

R

e

and environment remains when we exclude slow rotators. The signals in SAMI and EAGLE are strongest on small scales (10–100 kpc) as expected from galaxy interactions and mergers. Our work demonstrates that the technique of marked correlation functions is an effective tool for detecting the relationship between

λ

R

e

and environment.
Pluto and Charon Impact Crater Populations: Reconciling Different Results
Authors: Robbins Stuart J. , Singer Kelsi N.
Published: September 2021

The size–frequency distribution (SFD) of objects across the solar system is influenced by their formation and dynamic evolution. Bodies in different areas of the solar system—especially the inner versus outer—have likely experienced different histories, so measuring that SFD across orders of magnitude of solar distance can elucidate those different pasts. Accurate measurement of the SFD is greatly assisted by impact craters, formed from the smaller bodies that strike much larger ones, and it is often easier to measure impact craters’ SFDs than the smaller impactors themselves. One of the main results from New Horizons’ Pluto–Charon encounter was the crater SFD measurement, which illustrated an unexpected SFD with a distinct change in slope near ≈10–15 km diameter features. However, different methods of reporting these impact craters have resulted in some questions in the community about what the SFD actually is of Pluto's and Charon's crater population and therefore what the SFD is of the impactors that formed them. We have performed new crater population studies on both bodies, compared them with previously published work, and demonstrated that there is no ambiguity with respect to whether there is a transition to a shallower SFD population near ≈10–15 km. We find that this shallower slope is approximately −1.7 ± 0.2, while the steeper slope for larger craters is approximately −3.8 ± 0.6, though both of these uncertainties must be considered absolute minima based on fit sensitivity to the exact parameters and craters used. These values are consistent with previously reported results.
Evaluation of Cements Curing Modes Regarding Microleakage During Cementation of E-max Laminate Veneers
Authors: Alqahtani Waleed , Galal Rami Mohammed , Hamza Ghada
Published: September 2021

Purpose: The aim of this study is to investigate the effect of the curing modes of two adhesive resin cements (Light cure mode of the Variolink Veneer, the self-cure mode and dual cure mode of the Multilink Automix) on the marginal leakage of lithium disilicate ceramic laminate veneers. Methods: A total number of forty eight extracted natural central incisors were prepared to receive ceramic laminate veneers, constructed using E-max ceramic divided into three groups cemented using three curing modes of two adhesive resin cements {light-cure mode of Variolink Veneer, self-cure mode of Multilink Automix and dual-cure mode of Multilink Automix adhesive resin cements} . Die penetration test was done using the methylene blue stain {qualitative assessment} for testing the die penetration along the tooth/ceramic interface. Results: Descriptive statistical analysis revealed that the self-curing mode recorded the significantly least degree of leakage compared to the light and dual cure modes.  The self-cure mode recorded (0.1±0.3) which was significantly lower than light cure (1.2 ±0.9) and dual cure mode (1.2 ±0.4), there was no statistical significant difference between the later two curing modes. The self-cure mode of the resin cement is considered a more effective method for having the least marginal leakage at the tooth/ceramic interface. There was no difference between the light cure mode and the dual cure mode.
A One-year COVID-19 Pandemic Effect on the Orthopaedic Field in Indonesia: A Cross-sectional Multi-center Study
Authors: Utomo Pamudji , Haridhi Abdurrahman Afa , Yudistira Mochammadsyah Beizar
Published: September 2021

BACKGROUND: The World Health Organization announced the COVID-19 outbreak as a global pandemic on March 11, 2020. Despite the fact that orthopedists are not considered front-line staff in the fight against the pandemic, the pandemic has had an enormous impact on orthopedics daily practice. A few studies have looked at the pandemic effect on the orthopedics field, but none have looked at the impact of a 1-year pandemic, especially in Indonesia.

MATERIALS AND METHODS: This cross-sectional multi-center study was conducted at seven tertiary referral hospitals in Indonesia. Through hospital medical records, data were collected for a year, starting from the month the Indonesian government announced the first case of COVID-19 (March 2020–February 2021) and compared to data from the year before COVID-19 as a control (March 2019–February 2020). In addition, the researchers analyzed the number of patients in the emergency room (ER), outpatient clinic, inpatient, and operating room.

RESULTS: Overall, the number of orthopedic patients in the ER declined by 44% from 11.053 to 6.139 patients during the 1st year of the pandemic, with 28 patients reported as getting COVID-19. The outpatient clinic decreased by 34%, from 10.9780 to 72.200 patients, with two confirmed cases. Furthermore, the inpatient unit decreased from 15.365 to 9.526 patients, a 38% decrease, with the highest recorded case confirmed at 78 patients. The last, with 73 confirmed, showed a 27% reduction in OR from 12.954 to 9.431 patients.

CONCLUSION: In this study, analysis on the effect of the COVID-19 pandemic on the field of orthopedics in seven tertiary referral hospitals in Indonesia shows a significant decrease almost in all units.

LEVEL EVIDENCE: III, Cross-sectional multi-center study.
Guidelines for Structuring Object-Oriented Product Configuration Models in Standard Configuration Software
Authors: Rasmussen Jeppe , Hvam Lars , Kristjansdottir Katrin , Mortensen Niels
Published: September 2021

Product configuration systems (PCSs) are increasingly being used in various industries to manage product knowledge and create the required specifications of customized products. Companies applying PCS face significant challenges in modelling, structuring and documenting the systems. Some of the main challenges related to PCSs are formalising product knowledge conceptually and structuring the product features. The modelling techniques predominantly used to visualise and structure PCSs are the Unified Modelling Language (UML) notations, Generic Bill of Materials (GBOM) and Product Variant Master (PVM), associated with class collaboration cards (CRC-cards). These methods are used to both analyse and model the products and create a basis for implementation to a PCS by using an object-oriented approach. However, the modelling techniques do not consider that most commercial PCSs are not fully object-oriented, but rather, they are expert systems with an inference engine and a knowledge base; therefore, the constructed product models require modifications before implementation in the configuration software. The consequences are that what is supposedly a feasible structure of the product model is not always appropriate for the implementation in standard PCS software. To address this challenge, this paper investigates the best practice in modelling and implementation techniques for PCSs in standard software and alternative structuring methods used in object-oriented software design. The paper proposes a method for a modular design of a PCS in not fully object-oriented standard PCS software using design patterns. The proposed method was tested in a case company that suffered from a poorly structured product model in a not fully object-oriented PCS. The results show that its maintainability can be improved by using design patterns in combination with an agile documentation approach.
Application of Multi-Descriptor Binary Shape Analysis for Classification of Electronic Parts
Authors: Maliński Kamil , Okarma Krzysztof
Published: September 2021

Rapid growth of availability of modern electronic and robotic solutions, also for home and amateur use, related to the progress in home automation and popularity of the IoT systems, makes it possible to develop some unique hardware solutions, also by independent researchers and engineers, often with the help of the 3D printing technology. Although in many industrial applications high speed pick and place machines are used for assembling small surface-mount devices (SMD), especially in mass production of electronic parts, there are still some applications, where the traditional through-hole technology used in Printed Circuit Boards (PCB) is utilised, particularly considering some mechanical, thermal or power conditions, preventing the use of the SMD technology. One of the possibilities of supporting such types of production and prototyping, in some cases supported by relatively less sophisticated robotic solutions, may be the application of vision systems, making it possible to classify and recognize some electronics parts with the use of shape analysis of their packages as well as further optical recognition of markings. Another application of such methods may be related to the automatic vision based verification of the assembling quality and correctness of the placement of electronic parts after completing the production. In the paper some experimental results, obtained using various shape descriptors for the classification of electronic packages, are presented. The initial experiments, obtained for a prepared dedicated database of synthetic images, have been verified and confirmed also for some natural images, leading to promising results.
A New Approach for Information System Audit Teaching
Authors: Perez-Castillo Ricardo , De Guzmán Ignacio , Piattini Mario , Rodríguez Moisés
Published: September 2021

Today, no matter what market niche a company moves into or whether a business focus is technological, information technologies are its cornerstone in terms of its success and the fulfilment of its business goals. However, an undeniable fact is that technologies, in addition to many competitive advantages, carry many risks that must be properly identified and managed. Organizations must implement control measures to manage the risks. The whole set of control measures build up the Internal Control. However, only the realization of Information Systems (IS) Audit ensures that Internal Control is effective and efficient, and protects the most important assets of the organization, thus ensuring that it can achieve its business goals. This article presents a new vision of teaching in the area of IS Audit, presenting a methodology based on Project Based Learning (PBL) simulating that students belong to a real organization where they must not only develop an Internal Control but also evaluate it through IS Audit techniques. The simulation of a real environment facilitates the acquisition of competencies and knowledge related to IS Auditing, making more attractive the learning process. A tool called HASI has been developed, which implements the detailed workflow depicted in the methodology, allows to automate all the activities carried out by the students. Finally, this article presents the validation of the methodology carried out through the resolution of a practical case with the HASI tool. The validation allows observing to what extent the students perceive the learning of the areas of the IS Audit.
Lessons Learned Using a Virtual World to Support Collaborative Learning in the Classroom
Authors: Nisiotis Louis , Kleanthous Styliani
Published: September 2021

Using technology in education is crucial to support learning, and Virtual Worlds (VWs) are one of the technologies used by many educators to support their teaching objectives. VWs enable students to connect, synchronously interact, and participate in immersive learning activities. Such VW has been developed at Sheffield Hallam University (UK), and is used to support the teaching of a specific module, as well as for conducting empirical research around the topics of Transactive Memory Systems (TMS) and Students Engagement. TMS is a phenomenon representing the collective awareness of a group's specialisation, coordination, and credibility with interesting results. This paper presents the lessons learned while using the VW over the past few years at a higher education institution to support collaborative learning within working groups. A review of these empirical findings is presented, together with the results of a follow up study conducted to further investigate TMS and student Engagement, as well as students perceived Motivation to use a VW for learning, and their Learning Outcomes. The findings of this study are corroborating and contributing to previous results, suggesting that a VW is an effective tool to support collaborative learning activities, allowing students to engage in the learning process, motivate them to participate in activities, and contribute to their overall learning experience.
Comparative Study of Real Time Machine Learning Models for Stock Prediction through Streaming Data
Authors: Behera Ranjan , Das Sushree , Rath Santanu , Misra Sanjay , Damasevicius Robertas
Published: September 2021

Stock prediction is one of the emerging applications in the field of data science which help the companies to make better decision strategy. Machine learning models play a vital role in the field of prediction. In this paper, we have proposed various machine learning models which predicts the stock price from the real-time streaming data. Streaming data has been a potential source for real-time prediction which deals with continuous ow of data having information from various sources like social networking websites, server logs, mobile phone applications, trading oors etc. We have adopted the distributed platform, Spark to analyze the streaming data collected from two different sources as represented in two case studies in this paper. The first case study is based on stock prediction from the historical data collected from Google finance websites through NodeJs and the second one is based on the sentiment analysis of Twitter collected through Twitter API available in Stanford NLP package. Several researches have been made in developing models for stock prediction based on static data. In this work, an effort has been made to develop scalable, fault tolerant models for stock prediction from the real-time streaming data. The Proposed model is based on a distributed architecture known as Lambda architecture. The extensive comparison is made between actual and predicted output for different machine learning models. Support vector regression is found to have better accuracy as compared to other models. The historical data is considered as a ground truth data for validation.
Numerical Treatment of a Data Completion Problem in Heat Conduction Modelling
Authors: Barbosa Augusto C. de Castro , De Moura Carlos , De Negreiros Jhoab , Aguiar J. Mesquita de Souza
Published: September 2021

This work deals with a question in the mathematical modelling for the temperature evolution in a bar, for a long time linked as an inverse problem. The onedimensional model is the parabolic partial differential equation ut = α uxx, known as the heat diffusion equation. The classic direct problem (DP) involves this equation coupled to a set of constraints: initial and boundary conditions, in such a way as to guarantee existence of a unique solution. The data completion (DC) problem hereby considered may be described as follows: the temperature at one of the bar extreme points is unknown but there is a fixed interior point where it may be measured, for all time. Finite difference algorithms (FDA) were tested to approximate the solution for such a problem. The important point to be emphasized is that FDA may show up distinct performances when applied to either DP or DC, which is due to the way the discrete variables follow up the mesh steps - advancing in time, for the first case, on the space direction, for the other.
A Cooperative Design Method for SMEs to Adopt New Technologies for Knowledge Management: A Multiple Case Study
Authors: Fessl Angela , Pammer-Schindler Viktoria , Pata Kai , Feyertag Sandra , Mõttus Mati , Janus Jörgen , Ley Tobias
Published: September 2021

This paper presents cooperative design as method to address the needs of SMEs to gain sufficient knowledge about new technologies in order for them to decide about adoption for knowledge management. We developed and refined a cooperative design method iteratively over nine use cases. In each use case, the goal was to match the SME's knowledge management needs with offerings of new (to the SMEs) technologies. Where traditionally, innovation adoption and diffusion literature assume new knowledge to be transferred from knowledgeable stakeholders to less knowledgeable stakeholders, our method is built on cooperative design. In this, the relevant knowledge is constructed by the SMEs who wish to decide upon the adoption of novel technologies through the cooperative design process. The presented method is constituted of an analysis stage based on activity theory and a design stage based on paper prototyping and design workshops. In all nine cases, our method led to a good understanding a) of the domain by researchers - validated by the creation of meaningful first-version paper prototypes and b) of new technologies - validated by meaningful input to design and plausible assessment of technologies' benefit for the respective SME. Practitioners and researchers alike are invited to use the here documented tools to cooperatively match the domain needs of practitioners with the offerings of new technologies. The value of our work lies in providing a concrete implementation of the cooperative design paradigm that is based on an established theory (activity theory) for work analysis and established tools of cooperative design (paper prototypes and design workshops as media of communication); and a discussion based on nine heterogeneous use cases.
Interval Methods for Fixed and Periodic Points: Development and Visualization
Authors: Ayres José Eduardo de Almeida , de Figueiredo Luiz Henrique
Published: September 2021

We describe the development of rigorous numerical methods based on interval analysis for finding all fixed points of a map and all attracting periodic points of a complex polynomial. We also discuss their performance with instructive visualizations.
Detection of Cyberattacks Traces in IoT Data
Authors: Dutta Vibekananda , Choraś Michał , Pawlicki Marek , Kozik Rafał
Published: September 2021

Artificial Intelligence plays a significant role in building effective cybersecurity tools. Security has a crucial role in the modern digital world and has become an essential area of research. Network Intrusion Detection Systems (NIDS) are among the first security systems that encounter network attacks and facilitate attack detection to protect a network. Contemporary machine learning approaches, like novel neural network architectures, are succeeding in network intrusion detection. This paper tests modern machine learning approaches on a novel cybersecurity benchmark IoT dataset. Among other algorithms, Deep AutoEncoder (DAE) and modified Long Short Term Memory (mLSTM) are employed to detect network anomalies in the IoT-23 dataset. The DAE is employed for dimensionality reduction and a host of ML methods, including Deep Neural Networks and Long Short-Term Memory to classify the outputs of into normal/malicious. The applied method is validated on the IoT-23 dataset. Furthermore, the results of the analysis in terms of evaluation matrices are discussed.
The history and typification of Lilium humboldtii J.H.Krelage (Liliaceae)
Authors: Compton James , Skinner Mark W.
Published: September 2021

The history of the Californian Lilium humboldtii J.H.Krelage, its initial discovery and confusion in literature over its collection, distribution and naming are discussed. Neotypes are designated for the names Lilium humboldtii and Lilium bloomerianum Kellogg. Lectotypes are designated for the names Lilium canadense var. puberulum Torr. and L. bloomerianum var. ocellatum Kellogg.
Définition de la résilience organisationnelle par K. E. Weick
Authors: Autissier David , Vandangeon-Derumez Isabelle
Published: September 2021

La crise de la Covid-19 aurait pu plonger les organisations, et les acteurs qui les composent, dans ce que Weick appelle un incident cosmologique, à savoir un incident soudain et brutal, au cours duquel les individus ont le sentiment que le monde rationnel s’effondre autour d’eux. Un tel incident est dramatique car la perte de sens qui en résulte s’accompagne d’une incapacité à trouver des manières de reconstruire le sens. Mais cela n’a pas été le cas pour bon nombre d’entreprises et de collectifs qui ont su s’adapter au contexte imposé par cette pandémie, et ce de manière inédite, en mobilisant ce que Weick appel les moyens qui permettent de reconstruire du sens assurant ainsi leur résilience. Pour comprendre ce phénomène les Chaires ESSEC Changement et IMEO ont produit trois ouvrages avec une quinzaine d’entreprises pour décrire ce qui s’est passé entre mars 2020 et juin 2021 (Changement de crise en juin 2020, Trajectoire de crise en septembre 2020, Travail et Organisation hybride en juin 2021 aux éditions Eska). Ces observations et retours de terrain montrent l’émergence de l’importance pour une organisation de développer des formes de résiliences organisationnelles pour s’adapter, se réinventer et transformer les contraintes en opportunités. Avec l’objectif d’aider les entreprises à penser cette notion de résilience organisationnelle et de déployer des dispositifs constitutifs de cette notion, nous proposons d’exposer comment l’auteur K. E. Weick l’a appréhendée dans ses différents écrits.
Sneakerheads as fans and sneaker fandom as participatory culture
Authors: Kulinicheva Ekaterina
Published: September 2021

This paper considers sneakerheads, or sneaker collectors and enthusiasts, as fans. It explores both them and their participatory culture, developing a new approach to researching sneakerheads: I here conceptualize sneaker collecting as an object-inspired fandom to highlight the difference between sneaker fandom and other object-oriented fandoms. This paper demonstrates that sneaker collecting is about both collecting knowledge about the subject of sneakers and collecting sneakers themselves. The materiality of sneakers, the story behind a design, and the cultural history of sneakers attracts sneakerheads to sneakers. As such, I here explore the following characteristics of sneaker collecting: the importance of knowledge and its acquisition, the high value of the community's practices and activities, the high level of emotional involvement, fan art (sneaker art), and anticommercial ideologies and beliefs. The approach demonstrated in this paper could also be useful in research of other communities organized around collecting wearable goods, such as clothes or accessories, including football T-shirts, vintage denim, and bags.
Women's fan writing and transformative works in eleventh-century Japan
Authors: Khachidze Ellis
Published: September 2021

This exploration of the literary cultures of eleventh-century Japan analyzes the ways in which the writing and reading practices of the period resemble those of modern transformative fan communities. Studying the defining fictional text of this era, The Tale of Genji by Murasaki Shikibu (ca. 1021), within the framework of fan studies demonstrates how existing so-called canonical material was transformed into a vehicle for female-centric reimaginings of dominant narratives. The circumstances of the work's authorship and its initial reception are examined via the author's own diary and The Sarashina Diary (ca. 1059), a memoir written by an early reader of the Genji, providing insight into both individual fan identity and the extensive female-led fan communities of the period.
Acafan methodologies and giving back to the fan community
Authors: Lee Katja
Published: September 2021

In fan studies, researchers are encouraged to share their research with the fan communities they study, with some even suggesting that such a practice can be a way to ethically give back to the community. During a multiyear study of adult fans of Lego, several different ways to share research with the fan community were trialed and evaluated for their relative strengths. Community responses to these projects determined that both academic and creative practices for sharing research can successfully engage the community. Creative practice can capture the spirit of giving by making a contribution to the community by using its own modes of community participation.
Las especies del infraorden Gryllidea (Orthoptera, Ensifera) de la Colección Entomológica del Centro de Investigación Forestal de Lourizán (Pontevedra)
Authors: Pino Pérez Rubén , Llucià-Pomares David , Pino Pérez Juan José
Published: September 2021

Se presenta información específica de los ejemplares del infraorden Gryllidea depositados en la Colección Entomológica LOU-Arthr del Centro de Investigación Forestal de Lourizán y se revisa su estado de conocimiento en Galicia. Actualmente la colección cuenta con 450 ejemplares pertenecientes a cuatro de las cinco familias conocidas de la península ibérica (Gryllidae, Trigonidiidae, Mogoplistidae y Gryllotalpidae), seis subfamilias (Gryllinae, Oecanthinae, Trigonidiinae, Nemobiinae, Mogoplistinae y Gryllotalpinae), y 10 táxones [Eugryllodes escalerai (Bolívar, 1894), Gryllus (Gryllus) campestris Linnaeus, 1758, Gryllus (Gryllus) bimaculatus De Geer, 1773, Eumodicogryllus bordigalensis (Latreille, 1804), Oecanthus pellucens pellucens (Scopoli, 1763), Trigonidium (Trigonidium) cicindeloides Rambur, 1838, Nemobius sylvestris sylvestris (Bosc, 1792), Pteronemobius (Stilbonemobius) lineolatus (Brullé, 1835), Pseudomogoplistes vicentae Gorochov, 1996 y Gryllotalpa vineae Bennet-Clark, 1970]. Se citan por primera vez G. (G.) campestris para Lugo, O. pellucens pellucens para Lugo y Ourense, T. (T.) cicindeloides para A Coruña, Pt. (St.) lineolatus para Lugo, Ourense y Pontevedra, E. bordigalensis para Ourense y Pontevedra y G. vineae para Galicia.
Engaging student employee expertise to improve Wikipedia edit-a-thons
Authors: Cowles Kelsey , Glusker Ann , Gogan Aimee , Lillich Alicia , Sheppard Margie , Vitale Elaina , Waltman Liz , Wilson Tess , Wilson Amanda J.
Published: September 2021

Although academic skepticism of Wikipedia’s value as an information resource is widespread, the collaboratively created online encyclopedia is in fact one of the most frequently used health information resources in the world, including among students and professionals. As a result, the U.S.-based Network of the National Library of Medicine (NNLM) has, since 2018, organized biannual “#CiteNLM” edit-a-thons aimed at strengthening Wikipedia’s health pages by adding content and citations to trusted sources of information.

The first #CiteNLM edit-a-thon was a one-day virtual event in April 2018; since then NNLM’s edit-a-thons have evolved into month-long campaigns engaging primarily academic libraries with in-person edit-a-thons as well as virtual events. Hundreds of students, faculty, and library staff across the country (many of whom were new to Wikipedia editing) have collaborated in NNLM’s efforts to support universal access to high-quality health information. To date, over 600 health articles have been edited by over 400 editors. The current #CiteNLM campaign structure makes it easy for either individuals or groups to contribute or host affiliated events, which can include classroom exercises, citizen science projects, or library engagement efforts.
Quelques notes historiques sur la Synagogue antique, la maison d'études et le milieu rabbinique en Judée/Galilée au temps de la Mishna et du Talmud
Authors: Friedheim Emmanuel
Published: September 2021

Notre article a pour objectif de retracer les relations entre le milieu synagogal et celui de la maison d'études (Beth Hamidrash) à l'époque de la Mishna et du Talmud en Palestine romaine. S'agissait-il d'une même institution ou bien de deux institutions distinctes ? Les avis des chercheurs sont partagés sur la question. Celle-ci relance notamment le débat concernant la place d'un « judaïsme synagogal », rivalisant avec le judaïsme rabbinique, ce qui aurait peut-être conduit à la création d'une institution rabbinique, tel que le Beth Hamidrash laquelle se serait alors démarquée du milieu synagogal non-rabbinique.