bluuebunny/crossref_metadata_2025 huggingface dataset:
Blackbox Testing on the ReVAMP Results of The DutaTani Agricultural Information System
Authors: Chrisantyo Lukas , Wibowo Argo , Anggiarini Maria Nila , Chrismanto Antonius Rachmat
Published: September 2022

Information technology continues to evolve unceasingly. In line with the evolvement, agricultural sciences also transform the sense of technology utilization in its information systems to improve its quality and service. The Government of Indonesia strongly supports the use of information system technology in agriculture. DutaTani research team has consistently developed Agricultural Information System (AIS) technology since 2016 to achieve precision agriculture. These developments must be followed by continuous improvement of information systems carried out sustainably following changes and developments in the technology used. Testing is sorely needed in the system repair phase so that changes or improvements do not cause conflicts or problems in any pre-existing functions. The number of technologies that are tried to be applied in the repair phase tends to cause high system failures when they are tested on users. Based on these problems, this study aims to implement Blackbox testing to increase the system's success rate before general users utilize it. Blackbox testing is considered capable of bridging the development team and random respondents representing general users later. This research also added iterations to increase the success rate of the system. Respondents are invited to use the system through several main scenarios, but they have to fill in the input with variables that they have never filled in before. Through several iterations and following a test scenario created by an independent test team with ten random respondents, this study increased the system's success rate by 11.79%.
Implementation of an Automated Grading System for Microsoft Excel Spreadsheets and Word Documents
Authors: Iwata Kazunori , Matsui Yoshimitsu
Published: September 2022

This paper describes an automated grading system for MS-Excel files and MS-Word files for information technology education. The system can relieve teachers’ workloads to grade many exercises of MS-Excel/MS-Word files. It can also provide immediate feedback and has a mechanism to prevent students from submitting copied files.

In addition, we discuss the system’s effectiveness from both perspectives: the time to grade MS-Excel/MS-Word files and the average normalized gain computed by the operation records of the system in our university.
Issues of Policy and Strategy for International Collaboration between European HEIs
Authors: Al Laban Firas , Engel Katharina , Knoth Alexander , Lucke Ulrike
Published: September 2022

This article investigates cross-institutional collaboration of European Higher Education Institutions (HEIs) from a policy perspective, using virtual mobility as a case study. In the framework of policy experimentation, two instruments to provide an evidence basis are examined: policy dialogues between high-level authorities, institutional policymakers and practitioners, and evaluation of local implementations of existing policies. We describe these instruments along with the results obtained, reflect on the methodology used, and we finally derive recommendations for the policy process.
The Zoom Meeting Application for Virtual Classroom under Security Perfective
Authors: Christanto Avellino , Ison Dennis , Antonio Felix , Leo Vinson , Jong Veronal , Lumban Gaol Ford , Oktavia Tanty , Peng Chew Fong , Suzanna Suzanna
Published: September 2022

The pandemic that is happening in this world greatly affects many outdoor activities. Especially in the sector of education, where all activities are carried out online. Almost all educational institutions ranging from elementary schools to lectures use video conferencing applications as a support for learning. Zoom is a web application and an application that is being used. Zoom really helps users to meet fellow users virtually. Even in a relatively young way and there is no time limit when we use a Pro account. however, this Zoom application has several security-related issues as well as audio and video displays. The security problem is a serious problem, therefore this matter is quickly handled by the Zoom. And quickly, even this application is developing very well. Then the problem Display audio and video. Sometimes, while Zooming is running, the sound volume produced is not stable. And also, there are often delays that can disrupt communication during meetings. This is certainly very important to handle because it involves the smooth running of the meeting, which certainly affects the quality of the application itself. We use the qualitative research methods such as Google Form for asking people online.
Signing made easy – hiding complexity of eSignature solutions in a black box
Authors: Mincer-Daszkiewicz Janina , Gąsior Tadeusz
Published: September 2022

For many years Polish Higher Education Institutions (HEIs) have been actively incorporating digital solutions. Through the financial support of the state, as part of the Digital Poland program (carried out from 2014-2020), universities deployed student management systems and the Ministry of Science and Higher Education built central systems collecting data from HEIs. Changes in law introduced in 2019 in higher education, opened the way towards a fully electronic equivalent of the so-called student records folder.

In early 2020, the world faced the COVID-19 pandemic which accelerated the digitalization process advancing forward the transition to remote handling of student information. As a result, many provisions were introduced by the Ministry of Science and Higher Education, which sanctioned the replacement of paper documents with electronic ones, provided that their authentication, integrity, non-repudiation and confidentiality are preserved.

The amount and diversity of documents produced in HEIs is substantial. Many of them need to be signed: both for internal use (e.g. student records supporting study processes) and for external use (e.g. documents on student achievements required for further studies or employment). Furthermore, some of these documents travel across borders due to the increasing internationalization of higher education in Europe and beyond.

Polish HEIs range in size from 1,000 to almost 50,000 students and often share the same student management system. Therefore, they would benefit from easy-to-share, customizable, simple to install and use, low-cost solution for storing digital certificates, signing documents and validating their signatures.

The subject of this paper is the eSignForStudy project which addresses these needs. The objective of the project is to design and develop a highly configurable eSignature solution to be used in the Polish higher education area, interoperable with Erasmus Without Paper Network for cross-border digital document validation.
A Possibilistic Fuzzy Approach for Novelty Detection with Automatically Adjusted Number of Clusters
Authors: Akhmedova Shakhnaz , Stanovov Vladimir , Semenkin Eugene , Vishnevskaya Sophia
Published: September 2022

This paper introduces a new modification of the Possibilistic Fuzzy multiclass Novelty Detector for data streams (PFuzzND). Mentioned modification is based on the implementation of the automated adjustment of the number of clusters for each class (determined beforehand or during the novelty detection procedure) to improve algorithm’s ability to divide objects into small groups. As result, the proposed approach generates models with flexible class boundaries, which are capable to identify new classes or extensions of the ones that are already known as well as the outliers. Proposed possibilistic fuzzy algorithm for novelty detection was used to solve various benchmark problems with synthetically generated datasets. In order to show the workability and efficiency of the introduced modification its results were also compared with the results obtained by the original PFuzzND algorithm. Thus, it was established that the PFuzzND technique with automatically adjusted number of clusters allows achieving better results in regards to the accuracy, the Macro F-score metric and the unknown rate measure. Comparison to the original algorithm showed that the proposed modification outperforms it but is sensitive to the parameter settings, which can be also said about the PFuzzND method. Therefore, the MPFuzzND approach can be used instead of the original PFuzzND algorithm for other classification problems.
Smart Early Screening System for COVID-19 Spreading Prevention
Authors: Arrahmah Annisa , Ramadhan Surya
Published: September 2022

Since the end of 2019, a respiratory disease called COVID-19 caused by SARS- COV2 has been spread around the world. The disease has similar symptoms with influenza. The common symptoms are cough, fever and fatigue. The human-to human transmission occurs primarily through droplets spread by coughing or sneezing from infected people directly and indirectly. In this paper a system based on embedded devices that can be used to help prevent the spread of COVID-19 between humans through face mask detection and a contactless thermal sensor is proposed. CNN based deep learning for the facemask detection and IR thermal sensor for non-contact human temperature measurement are used. The system is implemented locally on the Raspberry Pi platform. The training result shows the accuracy of the face mask detector is higher than 90% and stable after epoch 2. The thermal sensor shows the stable input with 0.25 deviation.
Reducing Product Cost for ABC Company Through Lean Production Initiative
Authors: Jonny
Published: September 2022

This paper describes how ABC company has successfully increased its Process Cycle Efficiency (PCE) to win market competition through Lean Production initiative. By adopting Value Stream Mapping, an in-depth study towards its production process of product A is carefully conducted. This results in careful waste identification and elimination. After the implementation, the company can achieve an improved process cycle efficiency from 15,60% to 29,60% with product cost reduction about 56%. This gives insight for any manufacturing systems that the adoption of lean production especially value stream mapping may help to reduce product cost instead of Product Cycle Efficiency.
Using enterprise architecture and capability models in higher education: case studies from the EUNIS community
Authors: Le Strat Valérie , Maltusch Patrik , Suominen Esa , Ariño Martín Lluís Alfons
Published: September 2022

There are important lessons to be learnt from actual implementations of enterprise architecture and capability models in higher education. In this paper we draw on three different case studies from France, Finland, and Spain respectively, showcasing both commonalities and important differences. The examples showcase use cases as well as the organisations and processes behind the developments

We argue that one important contribution from these European examples is an understanding of the national differences that need to be accommodated in a standard such as the recently introduced higher education reference model (HERM). One aspect that also becomes obvious from a European perspective is the need for translations–and how language use is closely connected to local variations in the Higher Education models.
Online Learning Effectiveness on Classroom Electronic as Community Learning
Authors: Chandra Elsen , Saputra Rocky , Dwitama Ryan , Lumban Gaol Ford , Prabowo Harjanto , Meyliana Meyliana , Winanti Winanti , Hutagalung Fonny
Published: September 2022

The new generation of distance learning online education, established with the help of multimedia computer technology and network technology, is gaining growing attention around the world with the advancement of information technology. The purpose of this paper is to provide information about the effectiveness of online learning from a summary of 12 published research.
Social Media Spamming on the Class Room Electronic
Authors: Limanto Handika , santiaji Santiaji , Setiawan Ivan , Lumban Gaol Ford , Prabowo Harjanto , Meyliana Meyliana , Winanti Winanti , Hutagalung Fonny
Published: September 2022

In the current state of the world, the issue of identifying spammers has received escalating attention due to its influence towards social network security. The popularity of social networking sites made them unsurprisingly easy target for most spammers due to the ease of information sharing they provide. While having important information shared easily is a good thing, the extra bits of harmful objects including viruses or malwares are not. Not to mention the irrelevant information found across almost everywhere in the social media shared by said spammers. Spamming does not only affect social media but could also affect most websites and e-mails. Thus, an extensive action is needed to detect and counter the act of spamming, and this study attempts to review them.
Lensman as an Application and Platform for Photography Services
Authors: H. Christiono Kevin , H. Wijaya Alvita , N. Seputra Boban , Winanda Alif , Lumban Gaol Ford , Oktavia Tanty , Peng Chew Fong , Suzanna Suzanna
Published: September 2022

In the era of digital, social media is highly used, and many businesses are using this opportunity to promote their product online massively using promotions from many different social media influencers or endorsement to famous people. Many promoters also need a great representation of their product in the shape of images and pictures to make them look great. However, finding a great quality photographer is quite hard right now, because everything is done manually from mouth to mouth, and there are no applications or websites in Indonesia that can provide a service of renting great photographers. There are also many bad photographers that’s not capable of doing professional photography. Mobile Application has been a part of our everyday life since it first came out on smartphones. Many applications helps our daily life such as uber, Gojek, and grab. Those aforementioned applications helps with transport, logistics, and payment. Although there are platforms like Airbnb that listed entertainment / experiences from their user to be rented, It doesn't focuses on photographers and such. This paper proposes the idea of an application that connects photography related peoples such as a professional photographer, hobbyist, or someone who loves to be a model in one platform. The application can also become a platform of incomes to them and idea sharing for all groups.
Dimensional Success Factor for Sport Science: A Systematic Literature Review
Authors: Oktavia Tanty , Gaol Ford Lumban , Hosoda Takaaki , Syahir Arsyan
Published: September 2022

The most common failure from sports organizations was caused by improper sports organizations to manage their resources. Sports science generally refers to model intended to improve sports organizations' performance for general and the athlete for specific. Currently, it is important to implement sports science because it can be promoted as competitive strategies to win from any sport competition. The purpose of this research is to identify the dimensional success factor for sport science systems that become an important part of sports organizations before they build the system. This study focuses to examine many articles using systematic literature reviews in sports journals and conferences as supplementary materials alongside published articles, while the topic is a relatively recent sports science phenomenon to support sport organizations. The selected papers were screened and extracted to formulate the core dimensional success factor. The result of this study is a fact-finding dimensional success factor for sports organizations based on previous research that can be considered as the mainstream foundation for sports organizations to build their system, and also it can be applied in multiple sports organizations field as a competitive strategy.
Digitization of (Higher) Education Processes: Innovations, Security and Standards
Authors: Strack Hermann , Gollnick Marlies , Karius Sebastian , Lips Meiko , Wefel Sandro , Altschaffel Robert , Bacharach Guido , Gottlieb Matthias , Pongratz Hans , Radenbach Wolfgang , Waßmann Arn
Published: September 2022

The digitalisation of educational processes is of increasing interest. The area of student mobility in particular can benefit greatly from digitalised processes. However, the number of projects is constantly increasing, and it is a challenge to keep track of them. Therefore, this paper highlights the diverse and projects in the EU, regarding innovations in digitization of education processes (at EDU, HEI, PEI level) and student mobility administration based on different standards and integration of security are presented, as well as views/results from ongoing projects (EMREX/ELMO, Europass/EDCI, eIDAS, EUid,Verifiable Credentials, DiBiHo, Kolibri, NBP initiative, PIM, OZG implementation for SIS, Self-Souverain Identities SSI).

Future research can address extensive interoperability in detailed Layering Concepts for data and protocols - aiding some existing island solutions in standards and platforms in an independent way, also supporting internationalisation strategies.
Erasmus Without Paper: dream becoming reality
Authors: Leys Paul , Mincer-Daszkiewicz Janina
Published: September 2022

The year 2022 will be crucial for the digital future of the Erasmus administration. The renewal of inter-institutional agreements will be done in a digital fashion and Higher Education Institutions need to support online learning agreements. While many of us are still struggling to make it work, the next digitalisation steps are already awaiting around the corner with nominations and Transcript of Records to be exchanged in a digital manner. Moreover the European Student Identifier will both facilitate data exchanges and ease authentication of students.

During the years to come, the Erasmus Without Paper+ (EWP+) consortium aims to better support universities implementing the digitalisation roadmap. Transparency will be increased by establishing a new governance structure and by sharing more frequent updates for the HEI community about the state of play and next steps. Technical challenges and usability issues in the EWP Dashboard (also known as the Erasmus Dashboard) will be addressed and the EWP Network will improve its services in order to facilitate more efficient data exchanges between universities. Helpdesk services will be further enhanced. Moreover the consortium, together with a wide range of stakeholders, will lay the technical foundations for the further digitalisation of the Erasmus+ administrative processes.
Sarcasm Detection with External Entity Information
Authors: Xufei Xu , Kazutaka Shimada
Published: September 2022

Sarcasm is generally characterized as ironic or satirical that is intended to blame, mock, or amuse in an implied way. Recently, pre-trained language models, such as BERT, have achieved remarkable success in sarcasm detection. However, there are many problems that cannot be solved by using such state-of-the-art models. One problem is attribute infor- mation of entities in sentences. This work investigates the potential of external knowledge about entities in knowledge bases to improve BERT for sarcasm detection. We apply em- bedded knowledge graph from Wikipedia to the task. We generate vector representations from entities of knowledge graph. Then we incorporate them with BERT by a mechanism based on self-attention. Experimental results indicate that our approach improves the accuracy as compared with the BERT model without external knowledge.
Кухня казаков Дона : сборник рецептур блюд и кулинарных изделий для предприятий общественного питания
Authors:   Московский государственный университет пищевых производств, Васюкова А.Т. , Денисова И.П. ,   Московский государственный университет технологий и управления им. К.Г. Разумовского (Первый казачий университет), Рябов Н.В. ,   Московский государственный университет технологий и управления им. К.Г. Разумовского (Первый казачий университет)
Published: September 2022

Сборник рецептур блюд и кулинарных изделий разработан специалистами и практическими работниками отрасли общественного питания на основании блюд казачьей кухни. В него вошли старинные и наиболее распространенные рецептуры блюд народов Дона и отдельных блюд народов Кубани, являющихся характерными для казаков. Для специалистов отрасли общественного питания и широкого круга читателей
MULTI-SOLID MODEL MODIFIED TO PREDICT PARAFFIN PRECIPITATION IN PETROLEUM FLUIDS AT HIGH TEMPERATURES AND PRESSURES
Authors: Escobar Remolina Juan Carlos M. , Ortiz Wilson Barrios , Santoyo Ramírez Gildardo
Published: September 2022

Athermodynamic structure has been modified in order to calculate cloud point, fluidity and amount of precipitated wax under a wide range of temperature conditions, composition, and high pressures. The model is based on a combination of ideal solution concepts, fluid characterization, and formation of multiple solid phases using Cubic State Equations. The experimental data utilized for testing the prediction capacity and potentiality of a model exhibit different characteristics: continuous series synthetic systems of heavy alkanes, discontinuous series, and dead or living petroleum fluids with indefinite fractions such as C7+, C10+, C20+, and C30+. The samples were taken from the literature, petroleum fluids from the main Colombian reservoirs, and some samples of Bolivian fluids. Results presented in this paper show the minimum standard deviations between experimental data and data calculated with a model. This allows a progress in decision-making processes for flow assurance in reservoirs, wells, and surface facilities in the petroleum industry.
ASSEMBLY OF A METHODOLOGY FOR DETERMINATION OF MEMBRANE EFFICIENCY IN PRESERVED SHALES
Authors: Camacho Jhoao Villabona , Orozco Orozco Sergio , Calderón Carrillo Zuly , Saavedra Néstor F.
Published: September 2022

Determination of Membrane Efficiency (ME) is a very useful tool in the study of the chemical component of wellbore stability since it is a variable input in chemical-elastic models (Lomba, Chenevert & Sharma, 2000). This article presents a novel methodology for the determination of ME using the Electrochemical Potential Test (EPT) in shale rocks. This method is based on the development of correlations with Ionic Selectivity (IS) values in presence of NaCl, KCl and CaCl2 at diverse solution concentrations. The correlation, not reported previously in the literature, depends on the type of salt used. The EPT is a generic test easily applied to any rock type from any well or basin. It is simpler and quicker than other tests used for the ME determination, like the Pressure Transmission Test (PTT). Correlations between ME and IS are applicable to any type of argillaceous rock. Samples of unperturbed plugs with diverse properties belonging to different Colombian formations were used. The results obtained with the application of the proposed methodology indicate that it is possible to obtain IS and ME values through EPT in any type of argillaceous rock by applying the developed correlations.
PREDICTION OF THE FCC FEEDSTOCKS CRACKABILITY
Authors: Guzmán Gustavo Navas , Martínez Cruz Francy L. , Osorio Suárez Juan Pablo
Published: September 2022

This paper presents a statistical model for prediction of feedstock’s crackability (potential to generate valuable products on catalytic cracking process), based on experimental reactivity data by microactivity test (MAT - Microscale Fixed Bed Reactor) and detailed physicochemical characterization. A minimum amount of experimental tests corresponding to feed properties (typically available at refinery) is used to build a more complete description of feedstocks including chemical composition and hydrocarbon distribution. Both measured and calculated physicochemical properties are used to predict the yields of main products at several MAT reaction severities. Different well known functions correlating yields and conversion (previously tested with experimental data MAT) allows the evaluation of maximum point of gasoline yield. This point is used like a crackability index and qualitative point comparison of feedstock’s potential. Extensive feedstocks data base from Instituto Colombiano del Petróleo (ICP) with a wide range of composition were used to build the model, including the following feeds: 1. Light feedstocks - Gasoils of refinery and laboratory cuts from different types of Colombian crude oils and 2. Heavy feedstoks - Residues or feedstocks combined (blending of gasoil [GO], atmospheric tower bottom [ATB], demetallized oil [DMO] and demetallized oil hydrotreated [DMOH] in several proportions) from the four fluid catalytic cracking units (FCCU) at Ecopetrol S.A. refinery in Barrancabermeja - Colombia. The results of model show the prediction of valuable products such as gasoline for different refinery feedstocks within acceptable accuracy, thus obtaining a reliable ranking of crackability.
PETROCHEMICAL PROMOTERS IN CATALYTIC CRACKING
Authors: Gómez Maria Elizabeth , Vargas Clemencia , Lizcano Javier
Published: September 2022

This study is based on the current scheme followed by a refinery with available Catalytic Cracking capacity to process new feedstocks such as Straight Run Naphtha and Naphthas from FCC. These feedstocks are of petrochemical interest to produce Ethane, Ethylene, Propylene, i-Butane, Toluene and Xylene. To evaluate the potential of these new streams versus the Cracking-charged Residues, it was performed a detailed chemical analysis on the structural groups in carbons [C1-C12] at the reactor product obtained in pilot plant. A catalyst with and without Propylene - Promoter Additive was used.  This study analyzes the differences in the chemical composition of the feedstocks, relating them to the yield of each petrochemical product. Straight Run Naphthas with a high content of Naphthenes, and Paraffines n[C5-C12] and i[C7-C12] are selective to the production of i-Butane and Propane, while Naphthas from FCC with a high content of  n[C5-C12]Olefins, i-Olefins, and Aromatics are more selective to Propylene, Toluene, and Xylene. Concerning Catalytic Cracking of Naphthas, the Additive has similar selectivity for all the petrochemical products, their yields increase by about one point with 4%wt of Additive, while in cracking of Residues, the Additive increases in three points Propylene yield, corresponding to a selectivity of 50% (ΔC3= / ΔLPG).
COMPARISON OF COMBUSTION PROPERTIES OF SIMULATED BIOGAS AND METHANE
Authors: González Carlos Díaz , Arrieta Andrés Amell , Suárez José Luis
Published: September 2022

The utilization of new renewable energy sources has been of special interest during the past years, seeking to decrease our dependence on fossil fuels and the corresponding environmental impact derived from their use.  The combustion properties of a simulated gas composed of 60% methane and 40% carbon dioxide in volume are determined in this paper by means of calculation algorithms developed by the GASURE team, comparing them to pure methane properties. Furthermore, the effect of these properties on premixed flame characteristic phenomena is demonstrated. These properties were determined by theoretical estimations. The characteristic phenomena (laminar deflagration velocity, flame structure, radiation pattern) are determined experimentally. Results show a high effect of carbon dioxide in the combustion properties and characteristic parameters of a biogas premixed flame such as laminar deflagration velocity, flame structure and gas-methane exchangeability problems. The difference regarding flame structure and combustion properties lead to a difference in radiation pattern of the gases studied.
A NEW METHOD FOR THE EXPERIMENTAL DETERMINATION OF THREE-PHASE RELATIVE PERMEABILITIES
Authors: Pérez Carrillo Edgar Ricardo , Zapata Arango José Francisco , Santos Nicolás Santos
Published: September 2022

Petroleum reservoirs under primary, secondary or tertiary recovery processes usually experience simultaneous flow of three fluids phases (oil, water and gas). Reports on some mathematical models for calculating three-phase relative permeability are available in the Literature. Nevertheless, many of these models were designed based on certain experimental conditions and reservoir rocks and fluids. Therefore, special care has to be taken when applying them to specific reservoirs. At the laboratory level, three-phase relative permeability can be calculated using experimental unsteady-state or steady state methodologies. This paper proposes an unsteady-state methodology to evaluate three-phase relative permeability using the equipment available at the petrophysical analysis Laboratory of the Instituto Colombiano del Petróleo (ICP) of Ecopetrol S.A. Improvements to the equipment were effected in order to achieve accuracy in the unsteady-state measurement of three-phase relative permeability. The target of improvements was directed toward to the attainment of two objectives:1) the modification of the equipment to obtain more reliable experimental data and 2) the appropriate interpretation of the data obtained. Special attention was given to the differential pressure and uncertainty measurement in the determination of fluid saturation in the rock samples.  Three experiments for three-phase relative permeability were conducted using a sample A and reservoir rock from the Colombian Foothills. Fluid tests included the utilization of synthetic brine, mineral oil, reservoir crude oil and nitrogen. Two runs were conducted at the laboratory conditions while one run was conducted at reservoir conditions. Experimental results of these tests were compared using 16 mathematical models of three-phase relative permeability. For the three-phase relative permeability to oil, the best correlations between experimental data and tests using Blunt, Hustad Hasen, and Baker's models were obtained at oil saturations between 40% and 70%.
PRESSURE AND PRESSURE DERIVATIVE ANALYSIS FOR INJECTION TESTS WITH VARIABLE TEMPERATURE WITHOUT TYPE-CURVE MATCHING
Authors: Escobar Freddy Humberto , Martínez Javier Andrés , Montealegre M. Matilde
Published: September 2022

The analysis of injection tests under nonisothermic conditions is important for the accurate estimation of the reservoir permeability and the well's skin factor; since previously an isothermical system was assumed without taking into account a moving temperature front which expands with time plus the consequent changes in both viscosity and mobility between the cold and the hot zone of the reservoir which leads to unreliable estimation of the reservoir and well parameters. To construct the solution an analytical approach presented by Boughrara and Peres (2007) was used. That solution was initially introduced for the calculation of the injection pressure in an isothermic system. It was later modified by Boughrara and Reynolds (2007) to consider a system with variable temperature in vertical wells. In this work, the pressure response was obtained by numerical solution of the anisothermical model using the Gauss Quadrature method to solve the integrals, and assuming that both injection and reservoir temperatures were kept constant during the injection process and the water saturation is uniform throughout the reservoir. For interpretation purposes, a technique based upon the unique features of the pressure and pressure derivative curves were used without employing type-curve matching (TDS technique). The formulation was verified by its application to field and synthetic examples. As expected, increasing reservoir temperature causes a decrement in the mobility ratio, then estimation of reservoir permeability is some less accurate from the second radial flow, especially, as the mobility ratio increases.
A MODIFIED APPROACH TO PREDICT PORE PRESSURE USING THE D EXPONENT METHOD: AN EXAMPLE FROM THE CARBONERA FORMATION, COLOMBIA
Authors: Solano Yully P. , Uribe Rodolfo , Frydman Marcelo , Saavedra Néstor F. , Calderón Zuly H.
Published: September 2022

The methodology for pore pressure prediction known as D exponent is a function of an exponent of adjustment that was originally defined for the Gulf of Mexico (Jorden & Shirley, 1966; Eaton, 1972).  A limiting factor of this methodology is the definition of the Normal Compaction Trend (NCT), which needs to be interpreted from the data (Mouchet & Mitchell, 1989). In this study, the D exponent methodology was modified to make it applicable to the Oligocene Carbonera Formation in an oil field of the Llanos foothills, Colombia. The approach consisted of calculating the ratio between effective stress and the D exponent at each well, in order to find a robust NCT for the entire field, thus reducing subjectivity in the traditional D exponent methodology. Pore pressure determinations from Measured Direct Tests (MDT) at one well confirm the predictive capability of our approach.
CORRELATION DEVELOPMENT BETWEEN INDENTATION PARAMETERS AND UNAXIAL COMPRESSIVE STRENGTH FOR COLOMBIAN SANDSTONES
Authors: Mateus Darwin , Mateus Jefferson , Saavedra Nestor Fernando , Calderón Carrillo Zuly
Published: September 2022

A new way to characterize the perforated formation strength has been implemented using the Indentation test. This test can be performed on irregular cuttings mounted in acrylic resins forming a disc. The test consists of applying load on each sample by means of a flat end indenter. A graph of the load applied VS penetration of the indenter is developed, and the modules of the test, denominated Indentation Modulus (IM) and Critical Transition Force (CTF) are obtained (Ringstad et al., 1998). Based on the success of previous studies we developed correlations between indentation and mechanical properties for some Colombian sandstones. These correlations were obtained using a set of 248 indentation tests and separate compression tests on parallel sandstone samples from the same depth. This analysis includes Barco Formation, Mirador Formation, and Tambor Formation. For the correlations, IM-UCS and CTF-UCS, the correlation coefficient are 0,81 and 0,70 respectively. The use of the correlation and the Indentation test is helpful for in-situ calibration of the geomechanical models since the indentation test can be performed in real time thus reducing costs and time associated with delayed conventional characterization.
Workplace Spirituality and its Relationship with Organizational Variables: A Bibliometric Research
Authors: Sobacı Fatih
Published: September 2022

İşyeri maneviyatına ilişkin çalışmaların pandemi döneminde arttığı, bununla birlikte bu trendin yerli literatürde sınırlı kaldığı görülmektedir. Bu kapsamda çalışmanın amacı işyeri maneviyatının yayınlarda yüksek birlikte bulunma düzeyine
ve bu anlamda yüksek ilişkiye sahip olduğu örgütsel değişkenleri belirlemek ve yerli literatüre dönük olarak kavrama ilişkin farkındalığı artırmaktır. Bu amaç kapsamında veriler Web of Science (WoS) veri tabanından toplanmış ve
VOSviewer üzerinden bibliyometrik analizler gerçekleştirilmiştir. 839 yayın ve 1785 anahtar kelime üzerinden ulaşılan sonuçlar, işyeri maneviyatının yüksek bağlantı gücüne sahip olup en çok birlikte bulunduğu ve bu anlamda en yüksek
ilişkiye sahip olduğu örgütsel değişkenlerin; spiritüel liderlik, işe bağlılık, etik liderlik, örgütsel vatandaşlık davranışı ve spiritüel iklim olduğunu göstermektedir. Bununla birlikte örgütsel kültür, liderlik, psikolojik dayanıklılık,
örgütsel dayanıklılık ve spiritüel sermaye değişkelerinin daha fazla çalışmada işyeri maneviyatı ile birlikte çalışılabileceği düşünülmektedir. Spiritüel iklim, işe bağlılık, bilinçli farkındalık, çalışan bağlılığı, örgütsel bağlılık
ve iş tatmini değişkenlerinin işyeri maneviyatıyla görece daha yeni çalışılan değişkenler olduğu görülmektedir. Çok sayıda pozitif etkisi nedeniyle işyeri maneviyatına daha fazla önem verilmesi, bununla birlikte oluşabilecek olumsuz
etkilerine karşı yöneticilerin farklı manevi görüşleri anlama ve tüm görüşlere eşit mesafede yaklaşarak ayrıştırıcılığa gidecek bir durumun oluşmamasına özen göstermeleri gerektiği önerilmektedir.
Formação docente e a narrativas de professoras: a perspectiva de cursistas sobre o Projeto Logos II no RN
Authors: Araujo Rodrigo Wantuir Alves de , Santos Gillyane Dantas dos
Published: September 2022

O presente artigo analisa as narrativas das professoras que estiveram vinculadas a um projeto de política pública de formação docente para professores leigos, proposta pela Ditadura Militar Brasileira
Penetapan Kadar Vitamin C pada Ekstrak Paprika (Capsicum annuum var. grossum Sendtn.) di Supermarket menggunakan Metode KCKT
Authors: Sanuddin Mukhlis , Andriani Medi , Ramadhani Diah Suci
Published: September 2022

Paprika (Capsicum annuum var. grossum Sendtn.) telah dibudidayakan di banyak negara. Kandungan vitamin C yang terdapat di paprika lebih tinggi di bandingkan dengan vitamin C pada jeruk yang selama ini dikenal sebagai sumber vitamin C, dapat dilihat dari kadar vitamin C paprika yaitu 190mg/100g sedangkan pada jeruk 50mg/100g. Kebutuhan rata-rata manusia terhadap vitamin C tidak lebih dari 100 mg sehari dan vitamin C yang paling bagus didapat dari makanan sehari-hari, berupa buah atau sayuran. Penelitian ini dilakukan untuk menentukan kadar vitamin C pada paprika yang dijual di Supermarket penetapan kadar dari sampel paprika merah, kuning, hijau yang diolah menjadi ekstrak paprika dan selanjutnya dilakukan pengujian sampel vitamin C dengan menggunakan kromatografi cair kinerja tinggi (KCKT) pada panjang gelombang 264 nm. Berdasarkan penelitian yang telah dilakukan dapat disimpulkan bahwa, pada sampel Paprika yang diuji menggunakan alat KCKT ditemukan adanya kandungan vitamin C. Penetapan kadar vitamin C dalam ketiga sampel paprika menggunakan KCKT diperoleh hasil pada sampel paprika merah sebesar 2,0479 mg sampel paprika kuning sebesar 4,1305 mg, dan sampel paprika hijau 1,2153 mg. Hal ini menunjukkan bahwa semua sampel paprika yang diuji mengandung vitamin C.
Studi HKSA Senyawa Turunan 4-(3-nitrophenyl)-thyazol-2-ylhidrazone sebagai Inhibitor Monoamin Oksidase B
Authors: Purwaniati Purwaniati , Imanulloh Fahmi , Asnawi Aiyi
Published: September 2022

Penyakit Parkinson adalah penyakit yang prevalensinya terus meningkat seiring peningkatan usia harapan hidup. Penemuan obat baru yang memiliki aktivitas lebih kuat dengan resiko efek samping yang lebih rendah masih menjadi tantangan tersendiri. Senyawa turunan 4-(3-nitrophenyl)-thiazol-2-ylhydrazone diketahui aktif sebagai inhibitor monoamin oxidase B (MAO-B). MAO-B merupakan target kerja penting dalam pengobatan Parkinson. Penelitian ini dilakukan untuk mendapat senyawa turunan baru yang diprediksi memiliki aktivitas lebih baik sebagai inhibitor MAO-B. 34 senyawa turunan 4-(3-nitrophenyl)-thiazol-2-ylhydrazone dipilih sebagai training set dan test set. Metode Hansch digunakan dalam studi ini. Model HKSA yang valid selanjutnya digunakan sebagai acuan desain senyawa turunan baru dan memprediksi aktivitasnya. Studi dilanjutkan dengan penambatan molekul untuk melihat interaksi dan afinitas senyawa baru pada enzim target tersebut. Studi HKSA ini melibatkan deskriptor 1 dan 2 dimensi. Model HKSA yang valid adalah [pIC50]Pred = (2,210120) +(0,208611xLog_S) +(-0,024341xMW ) + (-0,000002xE_Potential) +(0,237454xRMS) +(-0,012968xE_termal). Kriteria statistik pada model tersebut adalah R=0,967; R2=0,949; Fhitung/Ftabel= 25,627; dan q2 = 0,869. Berdasarkan model HKSA tersebut dihasilkan 17 senyawa turunan baru yang diprediksi lebih aktif dibandingkan senyawa dalam training set dan test set. 8 senyawa baru diprediksi memberikan afinitas yang lebih baik pada MAO-B berdasarkan studi penambatan molekul, yaitu: SB1, SB9, SB11, SB12, SB14, SB15, SB17 dan SB18.
Analisis Pelaksanaan Pembelajaran Terpadu pada Kurikulum 2013 (Survey pada Guru SD di Kabupaten Sumedang)
Authors: Rachmawati  , Susanty Dessy , Pitaloka Anindhita , Virgina Viesta , Pristi Fierda Widya
Published: September 2022

Tuntutan penerapan pembelajaran terpadu kurikulum 2013 di sekolah dasar menjadi tantangan tersendiri bagi guru. Tidak jarang ditemukan guru yang masih mengesampingkan sub komponen dari setiap langkah dalam pelaksanaan pembelajaran terpadu. Penelitian ini bertujuan untuk mengetahui implementasi pembelajaran terpadu kurikulum 2013 di sekolah dasar. Metode yang digunakan adalah survei melalui instrumen angket yang melibatkan 30 peserta guru SD di Sumedang. Analisis data bersifat deskriptif. Hasil penelitian menunjukkan bahwa: (1) Guru SD melaksanakan pembelajaran terpadu pada tahap pendahuluan dengan baik yang menunjukkan persentase 65,56%; (2) Guru SD melaksanakan pembelajaran terpadu pada langkah inti dengan baik yang menunjukkan persentase 59,16%; (3) Guru SD melaksanakan pembelajaran terpadu pada langkah penutup dengan baik yang menunjukkan persentase 73,9%; Berdasarkan data tersebut dapat disimpulkan bahwa guru SD di Sumedang melaksanakan pembelajaran terpadu pada kurikulum 2013 dengan baik.
Pengaruh Dukungan Keluarga, Konsep Diri Akademik dan Regulasi Diri terhadap Motivasi Berprestasi Mahasiswa UPPJB-UT Makassar (Studi Pada Mahasiswa Pendas Pokjar Tana Toraja)
Authors: Burhan Burhan , Sigit Ahmad , Alwi Muh.
Published: September 2022

Penelitian ini bertujuan mengetahui pengaruh dukungan keluarga, konsep diri akademik dan regulasi diri terhadap motivasi berprestasi mahasiswa di Pokjar Tana Toraja. Penelitian ini merupakan jenis penelitian ex post facto dengan Teknik pengumpulan data melalui angket. Populasinya adalah mahasiswa PGSD Pokjar Tana Toraja berjumlah 457 mahasiswa. Teknik penyampelan yang digunakan adalah random sampling sehingga diperoleh sebanyak 164 responden. Teknik analisis data yang digunakan adalah uji prasyarat analisis dan uji inferensial. Hasil penelitian menunjukkan bahwa (1) dukungan keluarga memberikan pengaruh sebesar 2,9% terhadap motivasi berprestasi mahasiswa; (2) konsep diri akademik memberikan pengaruh sebesar 20,5% terhadap motivasi berprestasi mahasiswa; (3) regulasi diri memberikan pengaruh sebesar 55,6% terhadap motivasi berprestasi mahasiswa; (4) dukungan keluarga, konsep diri akademik, dan regulasi diri secara simultan memberikan pengaruh sebesar 62,2% terhadap motivasi berprestasi dan sisanya 37,8%
Pengaruh Pengaruh Pengenalan Lapangan Persekolahan, Persepsi Profesi Guru dan Efikasi Diri Terhadap Kesiapan Menjadi Guru (Mahasiswa Program Studi Pendidikan Akuntansi UNESA)
Authors: Aayn Sabriena Laura , Listiadi Agung
Published: September 2022

Kesiapan menjadi guru muncul oleh karena adanya keyakinan dari diri sendiri dan dikuatkan dengan beberapa faktor pelengkap lain. Penelitian ini memiliki tujuan untuk tahu akan pengaruh pengenalan lapangan persekolahan, persepsi terhadap profesi guru, efikasi diri dan kesiapan menjadi guru. Subyek riset ini yakni mahasiswa prodi pendidikan akuntansi UNESA tahun 2018. Riset ini berupa penelitian kuantitatif dan penelitiannya menggunakan metode regresi. Teknik pengumpulan data di dalam penelitian ini menggunakan kuesioner. Metode analisis datanya yaitu uji instrumen berupa uji validitas dan reliabilitas serta pengujian hipotesis berupa regresi linier berganda. Hasil penelitian menggunakan uji t yang mendapat kan nilai signifikansi variabel PLP sebesar 0,003, persepsi profesi guru sebesar 0,001, efikasi diri sebesar 0,000. Yang berarti secara parsial ketiga variabel tersebut berpengaruh positif dan signifikan terhadap kesiapan menjadi guru lantaran memiliki nilai signifikansi <0,05. Berikutnya hasil pengujian f menunjukan nilai signifikansi 0,000, hal itu berarti secara simultan ketiga variabel tersebut berpengaruh positif dan signifikan terhadap kesiapan menjadi guru.
Examination of the concept of "leisure time" in terms of sports science students
Authors:   Kırkpınar Faculty of Sports Sciences, Trakya University, Edirne, Turkey, Taşkin Cüneyt
Published: September 2022

This study aims to examine the attitudes of sports science faculty students towards leisure activities according to various variables. For this purpose, the Leisure Attitude Scale, which was created by Ragheb and Beard in 1982 and translated into Turkish by Akgül and Gürbüz, was used. The population of the research consists of 1330 students studying at Trakya University KSBF. The sample size is calculated as at least 288 by Yazıcıoğlu and Erdoğan at the 95% confidence interval. In our research, a total of 931 students were reached by random sampling method. According to the gender, department and income variables of the sample group, the scores they got from the leisure attitude scale were analyzed using the SPSS 25.0 package program. The data obtained in the study were analyzed and descriptive statistics were obtained. In order to make sense of the normality distribution of the data, kurtosis and skewness measures were examined. T-Test for independent groups, one-way analysis of variance (One-Way ANOVA) for independent groups for “department” and “income” variables was used to examine the “gender” variable, one of the independent variables of the study. The effect sizes of the tests with statistically significant difference (p < 0.05) were calculated. A significant difference was found in all of the participants' gender and department variables and the affective and behavioral sub-dimensions of the income variable (p < 0.05).
Comparison of the effect of life skills education and acceptance and commitment on happiness and responsibility of physical education students
Authors:   School of Physical Education and Sports, Kilis 7 Aralık University, Turkey, Gür Yunus
Published: September 2022

Happiness and responsibility are among the components on which students' mental health, performance and success depend. Therefore, the present study aimed to compare the effect of life skills education and acceptance and commitment on the happiness and responsibility of physical education students. A semi-experimental design was conducted (pre-test and post-test) with two experimental and one control group. 45 female physical education and sports teaching departments students in Kilis (Turkiye) with lower scores on the Oxford Argyle (1990) Happiness Questionnaire and the California Psychological Responsibility Scale (CPI-R), were selected by convenience sampling and randomly divided into two experimental groups (15 people in each group) and one control group (15 people). For the first group, life control education (8 sessions; week 2 one-hour session) and the second group, Acceptance and Commitment Therapy (8 sessions; week 2 one-hour session) was applied and the control group did not receive any education. Prior and after the education, the subjects completed the Argyle (1990) Oxford Happiness Questionnaire and the California Psychological Responsibility Scale (CPI-R). Multivariate analysis of covariance (MANCOVA) was used to analyze the data. The results showed that the mean scores of students' happiness and responsibility in the acceptance and commitment group compared to the life skills education group and in the life skills education group compared to the control group in the post-test increased significantly (p < 0.05). In conclusion, the results showed that commitment and acceptance education is more effective than life skills education in increasing the responsibility and happiness of physical education students.