bluuebunny/crossref_metadata_2025 huggingface dataset:
Metrology Investment Projects for process Effectiveness
Authors:   Centro Nacional de Metrología, Echeverria-Villagomez Salvador
Published: March 2022

In every production process, as in every control system, there are actuator elements, measurement elements and control elements. Measurement and control are often mixed. The effectiveness of the process or the system depends very much on the proper integration and constructive balance among these functions. For intuitive reasons, most times it is easier to grasp the relevance of the actuator part in a process and more difficult to understand the relevance of the measurement part, or even the control part. That is a reason why metrology is sometimes underestimated. With the scientific conviction of the relevance of metrology for system control, CENAM has developed more than 250 projects with industry in Mexico through the MESURA Program [1,2]. Very relevant results were obtained in many of these projects and the methodology is now applied by a number of Centers, Companies and organizations, both in Mexico and abroad. This methodology has been shared also with National Metrology Institutes of the Interamerican Metrology System (SIM), and has been adopted to some extent by Jamaica, Uruguay, Panama and Colombia [3]. There, an initiative emerged from a private metrology laboratory, Global Metric, to merge the MESURA approach with the productive metrology approach of Kunzmann and Pfeiffer [4]. This approach identifies loses or leaks of profit due to non-optimum metrological practices. It takes into account, as MESURA did, the Taguchi Loss Function [5], and the works of Mader, et al; Rodriguez, et al; Trejo, et al; Usuda, et al and Pendrill [6, 7, 8, 9, 10]. From the combination of these ideas, the purpose has been to analyse key processes in a company, identify opportunities for improvement with metrology and elaborate plans for Metrology Investment Projects (MIP). These MIP should evaluate clearly the technical opportunity to be addressed and translate it into economical data so that could be evaluated as any other investment project in terms of the Return on Investment (ROI) [11], Net Present Value (NPV) [12] or else. The methodology has been also seen as a complement to other improvement techniques as the Theory of Constrictions [13, 14], Re-Engineering [15], Lean Manufacturing [16, 17, 18, 19] and Six Sigma [20, 21]. The paper presents the developed methodology and the synergetic connections of MIP with other improvement philosophies, methodologies and techniques.
Traceability Considerations for the Characterization and Use of Measuring Systems
Authors:   National Institute of Standards and Technology, Ehrlich Charles D.
Published: March 2022

There are several different ways that measuring systems (which include measuring instruments) can be characterized, including calibration, adjustment, and verification (or testing). Common elements of such characterizations include comparisons of indicated values with values obtained when using measurement standards, specification of influence quantities and operating conditions, and statements of system resolution and repeatability. Differing elements of such characterizations include whether or how measurement uncertainty is recorded during the characterization, whether any change is made to the measuring system (including in hardware and software) during the characterization process, and whether recording of measured error of indication is part of the characterization process. The way that a measuring system is characterized will typically influence how measurement results are obtained and stated when subsequently using the measuring system to perform measurements. Since a measurement result includes the measurement uncertainty as well as the measured value, the metrological traceability that is ascribed to measurement results obtained when using such characterized measuring systems can be impacted by the type of characterization that was performed. Of particular note is that for some characterizations, in particular some types of verification (or testing) the measurement result might not contain an explicit measurement uncertainty, which brings the metrological traceability into question. This paper examines the different ways that measuring systems are characterized and subsequently used, and the implications for metrological traceability of associated measurement results.
Information Based Interpretation for Reliability Goal
Authors:   US Naval Air Systems Command, Huang Ding
Published: March 2022

Calibration intervals is derived based on conformity test results and a measurement reliability goal. A goal is written, such as, “Establish an objective end of period reliability goal for calibratable equipment equal to or greater than 85 percent, with the threshold reliability in no case to be lower than 72 percent. ”There are two requirements 1. end-of-period reliability target no less than 85 percent, 2. establishing an end-of-period to achieve the target. For achieving the goal, it is a prerequisite to clarify how reliability probability is inferred. Measurement reliability could be interpreted in two diametrically different statistical foundations. By the Bayesian statistical inference, it expresses fundamentally logical inferences, pertaining to individual cases. Or, based on conventional statistical framework, it is associated with limiting frequency, corresponding to propensities affecting mass phenomena. This essay discusses and recommends reliability requirement specify the accuracy associated with the end-of-period reported. Due to incomplete information, there will always be an uncertainty associated with the best reported end-of-period. Examples of small sample sizes are provided to demonstrate measurement reliability management for supporting the requirement. In a sense, this topic is even more fundamental to science • for what the theoretically valid and pragmatically useful ways to apply probability theory in science.
How Accreditation improve our quality of life? - Take Weight/Balance Calibration and Uncertainty Evaluation for example
Authors:   Taiwan Accreditation Foundation (TAF), Lin I-Jhen
Published: March 2022

Weights and balances are instruments commonly used in laboratories, industries and on the markets. The accuracy and precision of weights and balances would directly affect the data results as well as fair trade. As we know, the different calibration methods chosen by calibration laboratories usually cause different results on both measurement data and uncertainty analysis. In order to enhance the equivalence and mutual recognition of calibration results obtained by laboratories performing calibration of weights and balances, here, TAF (Taiwan Accreditation Foundation) provide an document called "Technical Criteria for Weights/Balances Calibration in Calibration Field" for our accredited laboratories. It gives general idea for the establishing of calibration procedures. The information presented in this document is intended to use as technical requirements for accredited calibration laboratories for performing weights/balances calibration and evaluating measurement uncertainty. In addition, the assessors of TAF should use this document as the basis for on-site assessment and laboratory accreditation. The document contains basic requirements for the static calibration of weights and balances, such as calibration procedure including test of repeatability, error of indication, environmental condition, determination of the uncertainty of measurement, contents of calibration certificates, etc. For calibration laboratories, the uncertainty analysis is one of the important tasks for ISO/IEC 17025 laboratory accreditation. The evaluation results of uncertainty analysis, which perform in the calibration measurement capability (CMC) and scopes of accreditation, usually represent the capabilities and competence in measurement. Since all measurement have an associated uncertainty, it is crucial that the main parameters which can influence the quality of measurement result should be recognized. In order to reduce and identify possible errors, it is necessary to use correct calibration methods. Thus, some main parameters which should be recognized and included in the uncertainty budget also have been written in this document.
An Electronic Calibration Label and its Compliance in a Quality System
Authors:   National Instruments, Nieves Dimaries
Published: March 2022

Throughout the modern calibration history, printed labels have being used to identify the calibration status of a measurement instrument and provide relevant information to the end user. The current version of ISO 17025:2005, in section 5, indicates that a label is required to provide information about instruments’ calibration. For accredited calibrations, accreditation bodies have specific requirements and guidelines to use and control the printed calibration labels displayed on instruments. In summary, a label is used to provide key calibration information for a measurement instrument. With the introduction of modular instrumentation in the measurement world, the usage of printed calibration labels is changing. Due to modular instrument design and architecture, electronic calibration labels are replacing the current and traditional printed calibration labels. However, the use of electronic calibration labels creates some new questions. Are the current labeling guidelines, instructions, and controls applicable to the electronic labels? How can the quality systems incorporate and maintain compliance of the electronic labels with the requirements? This paper describes an application comparison between the of electronic and printed calibration labels. We will provide recommendations to end users, calibration laboratories, and auditors in order to verify the compliance with the calibration and quality system requirements.
Promote our Quality of Life By Accurate Measurment through Traceable Calibration
Authors:   Taiwan Accreditation Foundation (TAF), Yang Joshua
Published: March 2022

Good quality of product increases quality of life. Accurate measurement data increases good quality of products, such as foods, electrical devices, construction materials, etc. Many factors determine the correctness and reliability of the measurement. Measurement traceability is one of great significance. In order to make sure the competence of testing and calibration laboratories, ILAC implements its policy on the traceability of measurement results (ILAC P10:01/2013) [1]. TAF (Taiwan Accreditation Foundation) adopts ILAC P10 to construct its own policy on the traceability of measurement results (TAF-CNLA-R04) [4]. In order to establish metrological traceability for their own activities, some of the accredited laboratories perform internal calibrations or "In-house" calibrations. How to make sure the correctness and reliability of the internal calibration? TAF has a requirement for internal calibrations, that is, "Technical Criteria for internal Calibrations" (TAF-CNLA-T18) [5]. The laboratories performing internal calibration shall establish calibration procedures for the calibration operation performed and shall meet the same technical criteria for accredited calibration laboratories. The estimation and expression of measurement uncertainty of these laboratories shall follow "ISO/IEC 98-3:2008 Uncertainty of measurement - Part 3: Guide to the expression of uncertainty in measurement (GUM: 1995))[2]". The results of uncertainty shall be provided to TAF for assessment. The internal calibration laboratories must have records of proficiency testing, at least one record every three years, for monitoring the validity of internal calibrations undertaken.
PENGARUH MODEL INKUIRI TERBIMBING TERHADAP HASIL BELAJAR FISIKA SISWA SMA
Authors: FIRMANSYAH EDI
Published: March 2022

This research was quasi-experimental research with experimental design nonequivalent control-group design. The study population was all X MIA class students at SMAN 2 Dompu. The classes wich are being investigated are class X MIA1 as the control class and class XMIA2 as the experimental class. The data were collected using multiple choice tests. Multiple choice tests was used to measure the cognitive learning outcomes of students and. The data were analyzed using t test (Independent t test). The results show that guided inquiry model has positive effect on students’learning outcomes, based on the result of 2-tailed smaller than 0,05 (0,000 < 0,05), The statistical analysis result means that learning outcomes of experiment class are significantly better than control class. Hence, it is concluded that problem-based learning model has more positive effect than conventional learning model on the critical thinking skills and physics learning outcomes on Senior High School students.
ABSTRAKPenelitian ini merupakan penelitian eksperimen semu (quasi eksperiment) dengan rancangan eksperimen nonequivalent control–group design. Populasi penelitian ini adalah seluruh siswa kelas X MIA pada SMAN 2 Dompu. Kelas yang dijadikan tempat penelitian adalah kelas X MIA1 sebagai kelas kontrol dan kelas X MIA2 sebagai kelas eksperimen. Pengumpulan data menggunakan tes pilihan ganda. Tes pilihan ganda digunakan untuk mengukur hasil belajar siswa. Uji hipotesis yang digunakan adalah uji-t (Independent t test). Hasil penelitian menunjukkan bahwa pembelajaran dengan model Inkuiri Terbimbing berpengaruh positif terhadap hasil belajar siswa berdasarkan hasil nilai signifikansi lebih kecil dari 0,05 (0,000 < 0,05). Hasil analisis statistik tersebut menjelaskan bahwa hasil belajar siswa kelas eksperimen lebih baik secara signifikan daripada kelas kontrol. Hasil penelitian menunjukkan bahwa model Inkuiri Terbimbing lebih berpengaruh positif dibandingkan model konvensional terhadap dan hasil belajar siswa SMA.
Evaluating Greenland Surface-Mass-Balance and Firn-Densification Data Using ICESat-2 Altimetry
Authors: Smith Benjamin E. , Medley Brooke , Fettweis Xavier , Sutterley Tyler , Alexander Patrick , Porter David , Tedesco Marco
Published: March 2022

Abstract. Surface-mass-balance (SMB) and firn-densification (FD) models are widely used in altimetry studies as a tool to separate atmospheric-driven from ice-dynamics-driven ice-sheet mass changes, and to partition observed volume changes into ice-mass changes and firn-air-content changes. Until now, SMB models have been principally validated based on comparison with ice core and weather-station data, or comparison with widely separated flight radar-survey flight lines. Firn-densification models have been primarily validated based on their ability to match net densification over decades, as recorded in firn cores, and the short-term time-dependent component of densification has rarely been evaluated at all. The advent of systematic ice-sheet-wide repeated ice-surface-height measurements from ICESat-2 (the Ice Cloud, and land Elevation Satellite, 2) allows us to measure the net surface-height change of the Greenland ice sheet at quarterly resolution, and compare the surface height changes directly with those predicted by three FD/SMB models. By segregating the data by season and elevation, and based on the timing and magnitude of modelled processes in areas where we expect minimal ice-dynamic-driven height changes, we investigate the models’ accuracy in predicting atmospherically-driven height changes. We find that while all three models do well in predicting the large seasonal changes in the low-elevation parts of the ice sheet where melt rates are highest, two models systematically overpredict, by around a factor of two, the magnitude of height changes in the high-elevation parts of the ice sheet, particularly those associated with melt events. This overprediction seems to be associated with the melt sensitivity of the models in the high-elevation part of the ice sheet, and third model, which has an updated high-elevation melt parameterization, avoids this overprediction.
Do Employee Trust and Job Satisfaction Mediate the Relationship of Leadership Styles and Emotional Intelligence with Project Success?
Authors: Adina Khan, Jamil Anwar, Said Shah
Published: March 2022

The current study investigates the impact of Leadership Styles (LS) and Emotional Intelligence (EI) on Project Success (PS) through underlying mediating mechanism of Job Satisfaction (JS) and trust. Total 160 responses were received from the team leaders (project managers, project leaders, project coordinators) of the NGOs sector of Pakistan. The findings of the research show that the relationship of LS and EI have significantly positive impact on the PS. Further, JS and Trust is positively and significantly influencing the PS and mediate the relationship of both LS and EI with PS. Within leadership styles, transactional leadership and Laissez Faire leadership styles have positive relationship with PS. However, the negative relationship of transformational leadership with PS is somewhat surprising as this relationship was expected to be positive.  The findings suggest that project managers in NGOs must be aware of the impact of certain leadership behaviors and level of emotional intelligence for completing the projects successfully.
Dummy variable regression models and analysis of responses in diagnostic screening tests with replications
Authors:   Department of Statistics, Nnamdi Azikiwe University, Oyeka I , Umeh E ,   Department of Statistics, Nnamdi Azikiwe University
Published: March 2022

Often in controlled comparative either prospective, retrospective or cross–sectional study involving matched samples of subjects or patients, the response of a subject or patient to a predisposing factor in a retrospective study or to a condition or treatment in a prospective study may be dichotomous. But there may also be several other possible response options other than dichotomous but numbering some c possible mutually exclusive response options or categories. Specifically , suppose we have a total random sample of n- matched pairs of patients or subjects matched on certain characteristics to be exposed to two treatments, drugs, tests; suppose nil pairs of these subject pairs are in the response category by case and response category by the control subject, for responses. There may be no replications; that is there is only one pair of case-control subjects.
Teaching statistics through projects
Authors:   Universidade de São Paulo, Busatta Mariana , Magalhães Marcos ,   Universidade de São Paulo
Published: March 2022

The goal of education highlighted by several Brazilian official documents is to develop students' critical thinking and acting as well as their autonomy. Teaching statistics through projects contributes to these goals, once it involves analysis and decision making.
Advancing statistical education using technology and mobile devices
Authors:   AlBaha University, Al-Matar Najeeb
Published: March 2022

This study explores individual differences and the effects of these differences on usage of a statistics website, especially in combination with new platforms, such as mobile devices (i.e. smart phones and iPods). This study looks to assist in the improvement of a website for both computer and mobile device usage, and propose suggestions for similar websites.
Remix technics with exe learning to improve statistics learning using moodle
Authors:   Universidad Nacional de Córdoba, Heckmann Gerardo
Published: March 2022

If there is an issue that is particularly hard to understand for students in statistical inference that is the concept of the distribution of a combination of random variables: an estimator. In a massive, 300 or more students’ classroom, the challenge is even greater. This situation is common at the Faculty of Economics of the National University of Córdoba (FCE- UNC), Argentina, with more than 12,000 students. The purpose of this work is to show how to take advantage from the production of Scorm materials that facilitate the integration of resources available on the web to improve the study of statistical issues in mass classrooms through the interaction with Moodle platform. Based on Exe Learning, an SCORM was developed. This is an interactive material to complement the study of Sampling Distributions. Includes sections designed to ensure understanding of the concepts, based on the use of simulators from the Rice University and auto evaluation questions. You may visit the site at: http://aulas.eco.unc.edu.ar/course/view.php?id=7 Implemented in a course of statistical inference at FCE-UNC it seems to be a very good alternative in the search for high degree of personalization in the interaction with the students, despite the massiveness of the number of attendees. A personal score is assigned on the base of the student interaction with the Scorm and registered in Moodle. Feedback is automatically generated while using the app (correct answers are stimulated with Genial! Well done!, etc. and those wrong with clues to get to the correct answer and an expression of encouragement: Try again! It is important to remark that this kind of materials also seem to be an excellent tool to motivate teachers (materials production) and students (Statistics education in the age of social networking and distance education). Also are intended to close the gap in advancing Statistical education using technology and mobile devices.
Metodologia alternativa de ensino-aprendizagem promovendo a alfabetização estatística aos alunos do ensino fundamental
Authors:   Universidade Estadual Paulista “Júlio de Mesquita Filho, Perticarrari Amanda , Meyer Andreia ,   Universidade Estadual Paulista “Júlio de Mesquita Filho, Peruzzi Nelson ,   Universidade Estadual Paulista “Júlio de Mesquita Filho, Manfrim Aline ,   Instituto Federal de São Paulo, Rolim Glauco ,   Universidade Estadual Paulista “Júlio de Mesquita Filho, Munari Danísio ,   Universidade Estadual Paulista “Júlio de Mesquita Filho, Ferraudo Antonio ,   Universidade Estadual Paulista “Júlio de Mesquita Filho
Published: March 2022

As informações estatísticas sempre estiveram presentes na vida dos cidadãos e assim como muitas pessoas confiam e utilizam para nortear suas decisões, outras desconfiam e/ou atacam sua verossimilhança (CAZORLA, 2008). Os Parâmetros Curriculares Nacionais sugerem o incentivo da leitura e da interpretação de gráficos, de tabelas e de medidas publicadas pelos diversos meios de comunicação, para que o aluno saiba posicionar-se de forma crítica diante dessas informações e fornecer-lhes ferramentas para arguir e findar informações enviesadas (LOPES et al, 2010). Dessa forma, o presente trabalho visa promover uma alfabetização estatística aos alunos do Ensino Fundamental (EF), desenvolvendo uma metodologia alternativa de ensino-aprendizagem em probabilidade e estatística, cuja teoria e aplicação são abordadas através do desenvolvimento de material didático desenvolvido especificamente a partir conhecimentos prévios e práticas do cotidiano do aluno de EF. Para o desenvolvimento do material didático foi aplicado um questionário fechado a 200 alunos do EF, baseado em uma escala que permite respostas com níveis variados, de forma que os dados foram padronizados em uma mesma escala. O mesmo foi estruturado sobre questões cotidiano desse público possibilitando identificar situações-problema a serem exploradas. Estes foram tabulados e uma análise descritiva resumiu as informações das respostas obtidas por meio do questionário. Posteriormente, foi possível a elaboração de situações-problemas envolvendo conteúdos de estatística. A partir do questionário aplicado, esta sendo possível coletar e organizar os dados para o desenvolvimento de uma apostila contendo atividades do cotidiano dos alunos do EF visando uma metodologia alternativa para o desenvolvimento da educação estatística nas séries iniciais desse público. O conceito teórico de Estatística vai ser explorado a partir de atividades do cotidiano dos alunos identificadas via questionário, promovendo uma qualificação em conteúdos que envolvem a Estatística e o desenvolvimento do pensamento estatístico.
The item response theory (irt): analysis of attitude of undergraduate students regarding the statistics disciplines
Authors:   University of Brasília, Pereira da Silva Etienne
Published: March 2022

The poster to be presented proposes to assess the attitude of 210 students from the University of Brasilia (UnB) who answered Attitude Scale regarding Statistics (EAE). Furthermore, this work is the result of the Final Paper of course Bachelor in Statistics at UnB in order to get a better understanding of statistical education and the IRT applicability. The Item Response Theory (IRT) has considered an alternative to Measure Classical Theory (MCT) in elaboration and analysis of the constructs that are evaluated by the measuring instruments (questionnaires). With wide application in educational assessment, the IRT, whose main feature is the item, proposed probabilistic models for latent variables (variables that are not directly measured). The researchers have indicated that the students demonstrate low motivation to use statistical instruments and they have some difficulties in learning statistics concepts. Previous studies claim that students with positive attitudes about particular discipline are more likely to succeed in learning of its contents. Thus, the answers were given by students from UnB were analyzed by Item Response Theory. The parameters of difficulty of the items ( ) and the discrimination parameter showed that the item concerning to definitely has a positive reaction to the service disciplines (Biostatistics, Applied Statistics and Probability and Statistics), appreciate and enjoy this matter was the best informs. The various disciplines (different study areas), perception of performance, attend or not the first discipline shown to influence the attitudes level toward statistics. These results suggest an enhancement to the statistics is applied in the context of the course each student and what strategies are adopted to develop a teaching-learning environment that encourages students.
Modelos de scoring para detectar potencial de abandono en carreras de ingeniería
Authors:   Universidad Nacional de La Matanza, Edwards Diego , Pérez Silvia ,   Universidad Nacional de La Matanza, Giuliano Mónica ,   Universidad Nacional de La Matanza, Gargano Cecilia ,   Universidad Nacional de La Matanza
Published: March 2022

El objetivo de este trabajo es mostrar resultados preliminares de un estudio para identificar factores que inciden en la deserción o abandono de carrera de los alumnos de carreras de Ingeniería de una universidad pública argentina. Se busca desarrollar un modelo de scoring para identificar el potencial de abandono en el primer año de carrera.
Game team creation as a motivating activity in a discipline of probability and statistics for engineering
Authors:   Universidade Federal de Itajubá, Silva Figueiredo Ana , Muniz Pereira Rennan ,   Universidade Federal de Itajubá
Published: March 2022

This paper presents the development of a team game activity for the course of Probability and Statistics that was held in the first day of class of an Engineering program to motivate students. This course is sometimes described as dense and considerably difficult, so students may be somewhat apprehensive. Thus, this activity aimed to break with such predisposition.
Informal inference – approaches towards statistical inference
Authors:   Department of Statistics, University of Klagenfurt, Borovcnik Manfred
Published: March 2022

The development of methods suitable to tackle the problem of inductive logic – how to justify arguments that generalise findings from data – has been signified by great controversies in the foundations and – later – also in statistics education. There have been several attempts to reconcile the various approaches or to simplify statistical inference: EDA, Non-parametric statistics, and the Bootstrap. EDA focuses on a strong connection between data and context, non parametrics reduces the complexity of the model, and Bootstrap rests solely on the data. Informal inference subsumes two different areas of didactic endeavour: teaching strategies to simplify the full complexity of inference by analogies, simulations, or visualisations on the one hand, and reduce the complexity of inference by a novel approach of Bootstrap and re-randomisation. The considerations about statistical inference will remain important in the era of Big Data. In this paper, the various approaches are compared for their merits and drawbacks.
Understanding sampling distributions: the role of interactive dynamic technology
Authors:   Michigan State University, Burrill Gail
Published: March 2022

Interactive dynamic technology can help students build concept images of core statistical ideas, in particular, ideas related to distributions and sampling, enabling them to make inferences from data and in the process help address common misconceptions about these ideas. Applet-like documents allow students to take meaningful statistical actions in diverse situations, immediately see the consequences, and reflect on those consequences in terms of specified learning outcomes. Initial results of the analysis of preservice elementary teachers thinking after using the documents based on a framework adapted from the Solo taxonomy are promising.
Middle school students’ informal inferences about falling raindrops
Authors:   Department of Mathematics, Eastern Washington University, Canada Dan
Published: March 2022

The purpose of this paper is to report on the emerging results of a project that used an instructional intervention designed to improve middle school students’ informal expectations of variability in a two- dimensional context that was based on the theorized placement of falling raindrops. Specifically, one aim of the project was to compare how students reasoned about variability to make informal inferences both before and after modelling a task physically and then via computer simulation. A simultaneous goal was to have students pursue their own additional questions, beyond the initial prompts given, that were prompted by an analysis of the data they had gathered.
Contentious expertise: Hacking mobile phones, changing mobile technology
Authors: Jorgensen Niels
Published: March 2022

The concept ‘contentious expertise’ is proposed to account for technological expertise applied in technological controversies. Activists from the Chaos Computer Club, a German hacker group, adapted contentious expertise when they built a so-called clone of a mobile phone SIM card in 1998, and used the clone to publicly make a phone call — free of charge. The activists blamed the secret design of SIM cards, and subsequently, the design was changed and made fully public. The activists’ technical knowledge was crucial for the success of the hack. The paper ask how novel was the knowledge used in the hack, how did the activists acquire their knowledge in the first place, and were the hackers right in believing that their hack would always work?
Salient design features that your social media platform needs: The case of online communities of interest
Authors: Nili Alireza , Barros Alistair
Published: March 2022

We discuss the importance of salient design features (which support purposeful action and relate to functional affordances) of customer-to-customer social media platforms that support communities of interest, focussed on open-ended data and user tasks, in contrast to business-to-customer platforms, focussed on relatively fixed data and transactions. We provide an exposition of their design features, shedding light on how they support tasks of searching and decision-making in which users elicit knowledge from their community, for targeted needs to needs which are less known and speculative. We also discuss that how our findings can be useful for designing social media platforms that support other types of online communities such as online communities of practice. Our research contributes to the ongoing discourse in the information systems field about the importance of identifying and articulating the salient design features of an information technology that is useful for theory and practice.
HUBUNGAN PENGETAHUAN DENGAN PENANGANAN DISMENOREA PADA REMAJA PUTRI DI KOTA SEMARANG
Authors: Titik Kurniawati  , Widyah Setiyowati  , Dwi Mahardika
Published: March 2022

Pendahuluan: Dari hasil penelitian di Amerika Serikat persentase kejadian dismenore sekitar 60%, Swedia 72% dan di Indonesia 55%. Penelitian di Amerika Serikat menyebutkan bahwa dismenore dialami oleh 30-50% wanita usia reproduksi dan 10-15% diantaranya kehilangan kesempatan kerja, mengganggu kegiatan belajar di sekolah dan kehidupan keluarga, kehilangan kesempatan kerja, mengganggu kegiatan belajar di sekolah dan kehidupan keluarga. Metode: Jenis penelitian observasional dengan rancangan cross sectional, untuk melihat hubungan antara pengetahuan dan sikap tentang dismenorea dengan penanganan dismenorea pada subyek yang dilakukan bersamaan pada satu waktu, di wilayah Kelurahan Pakintelan Kecamatan Gunungpati Kota Semarang, pada bulan Mei 2019. Populasi adalah remaja putri di Kelurahan Pakintelan Kecamatan Gunungpati Kota Semarang yang mengalami dismenorea yang berjumlah 30 orang. Sampel berjumlah 30 orang, dengan tehnik sampling yaitu total sampling. Hasil: Pengetahuan remaja putri tentang Dismenorea terbanyak pada kategori cukup sebesar 18 orang (60,0%). Penanganan dismenorea sebagian besar adalah ditangani yaitu 27 responden (90,0%). Berdasarkan hasil pengujian didapatkan nilai p value sebesar 0,884 (0,884 > 0,05) sehingga lebih besar dari 0,05. Bahwa tidak ada hubungan pengetahuan tentang dismenorea dengan penanganan dismenorea pada remaja putri di Kelurahan Pakintelan, Kecamatan Gunungpati, Kota Semarang. Diharapkan Puskesmas wilayah setempat dapat memberikan informasi dan konseling tentang kesehatan reproduksi.
PENGARUH PENDIDIKAN KESEHATAN DENGAN AUDIO VISUAL TERHADAP PENGETAHUAN DAN MOTIVASI IBU MENYUSUI SECARA EKSKLUSIF DI PUSKESMAS GAMBIRSARI SURAKARTA
Authors: Eni Rumiyati  , Erinda Nur Pratiwi  , Siti Nurjanah
Published: March 2022

ASI ekslusif merupakan kebutuhan dasar bagi seorang bayi baru lahir yang paling mendasar. Pemberian ASI merupakan wujud kasih sayang dari seorang ibu yang berpengaruh terhadap kualitas hidup bayi dimasa mendatang. Pemberian ASI eksklusif di Indonesia cenderung rendah, pada 2016 sedikit mengalami peningkatan sebesar 54,0%. Cakupan pemberian ASI Eksklusif di Kota Surakarta tahun 2014 sebesar 67,7%. Di Kota Surakarta, rata-rata cakupan pemberian ASI eksklusif pada tahun 2013 sebesar 55,7%. Angka cakupan pemberian ASI eksklusif terendah salah satunya adalah Puskesmas Gambirsari 41,7%. Media mempunyai peranan yang sangat penting dalam menentukan keberhasilan proses penyampaian pesan. Media yang digunakan adalah bisa dengan menggunakan Audio visual berupa video tentang ASI Eksklusif. Penelitian ini bertujuan untuk mengetahui penyuluhan ASI eksklusif dengan Audio visual terhadap pengetahuan dan motivasi untuk menyusui secara eksklusif di Puskesmas Gambirsari, Surakarta. Metode penelitian yang digunakan adalah pra-eskperimen (pre–experiment design) penelitian ini menggunakan rancangan One Group Pretest-Postest. Analisis data dengan uji paired simple t-test. Populasi dalam penelitian ini adalah 30 orang. Seluruh polulasi diunakan sebagai sampel penelitian (total sampling). Penelitian ini menggunakan analisis data dengan uji paired simple t-test dengan nilai signifikansi p-value sebesar 0,000 dengan taraf signifikansi p < 0,05. Hal ini dapat disimpulkan bahwa ada pengaruh pendidikan kesehatan ASI Eksklusif dengan audio visual terhadap pengetahuan dan motivasi ibu menyusui secara eksklusif di Puskesmas Gambirsari Surakarta.
Strategic Formulation Analysis of National Sport Institute of Indonesia, "IONI"
Authors: Apriani Nanda Dwi , Filiana Maria Alviona , Ermando Jamot Gery
Published: March 2022

The Indonesian Sports Institute is a private university engaged in the sports industry that contributes to the sports performance segment. We are the solution to achieve sports achievements because we will produce competent and certified undergraduate trainers. We also provide services that are easily accessible, friendly and fast. The strategy method uses the value proposition canvas, IFE, EFE, VRIO, CPM, SWOT, IE, QSPM, Porter's Generic Strategy and lean business canvas model. The results of this analysis can help to determine a suitable business model for the Indonesian National Sports Institute.

Keywords: Value Proposition Canvas, Porter's Generic Strategy, Lean Business Model Canvas, containers, sport institute, sport industry.
Urban Security Challenges: A Review of Crime Prevention Strategies Adopted by Residents in Greater Port Harcourt City, Rivers State, Nigeria
Authors: Edmund Chinem Nwokaeze, , Tamunoikuronibo Dawaye Ikiriko, , Simeipiri Wenike Johnbull,
Published: March 2022

The vulnerability to the insecurity of cities, and how best to address them, have been subject to considerable discussions. With the rising crime rate in cities in Nigeria, households have provided for their security, particularly with structures in the building, streets and neighbourhoods. Observation of streets and houses in Greater Port Harcourt City Area show high fences (some with the addition of razor wires), gates to streets manned by security personnel, use of CCTV, electrified gates and fences, burglary proofing of windows, doors and even roofs. This research reviews strategy adopted by residents in curbing crime across different neighbourhoods of Greater Port Harcourt City. The study utilizes a survey research methodology based on data obtained from four hundred and ninety–eight (498) respondents drawn from four neighbourhoods selected purposively (three from planned neighbourhoods in the inner city and one large neighbourhood in the peri-urban area). The study followed a multi-stage framework. Five streets in the inner city and fifteen streets in the peri-urban area were randomly selected in the study neighbourhoods. This was followed by the selection of twenty houses on each street using the systematic sampling method. In each house, one household head was randomly picked for questionnaire administration. The results revealed that the use of urban design elements to control crime between the inner-city neighbourhoods and the neighbourhoods in the urban periphery of the city differed significantly. The inner-city made greater use of natural surveillance to control crime whereas the peri-urban area utilized target hardening. State actors and non-state actors were used for crime control across the neighbourhoods; however, income status was a key determinant of preference. The high income was favourable to the formal instrument of state power, the police while the low income preferred the non-state actors, the local vigilante. This study recommends an integrated crime prevention strategy for the entire city; adequate funding of security by the Government, the provision of amenities and street furniture, the use of neighbourhood plans that promotes defensible space in emerging areas, the introduction of technology and community policing in crime prevention will achieve far greater long-term security for the Greater Port Harcourt metropolis.

Keywords: Urban security, Crime prevention, Neighbourhood, Greater Port Harcourt City.
Identification of Human Semen (Spermatozoa) through Different Methods in Forensic Investigation
Authors: Nath Singh Harendra , Ranu Paul Ranu Paul
Published: March 2022

The presence of seminal stains is very important in crime involving sexual offence. Semen detection is an important factor in forensic investigation to confirm sexual assault in cases of rape. Forensic science laboratory received large numbers of cases involve in sexual offenses for examination and detection of seminal fluid in the exhibits sent by different investigating agencies. A Forensic laboratory receives different types of exhibits for examination of the presence of seminal stains in the exhibits like, garments, cotton swabs, smear in a glass slide, liquid and dry semen, semen mixed with other body fluids, and other articles related to the case. Various methods have been developed in forensic science for identification of semen (sperm). This paper focuses on the basic knowledge of collection seminal stains from the crime scene and detection procedure of human semen (sperm) from the various exhibits in the forensic laboratory. This paper also proposed practical approaches and guideline to help forensic, and law enforcement professionals to deal with the crime scene seminal evidence to avoid contamination, degradation, and loss of the value of the seminal evidence.

Keywords: Forensic Science, Spermatozoa, Seminal fluid, Identification of semen, Sexual assaults.
Effectiveness of Online Learning: The Learning Methods and Media
Authors: Rini Hesty Prima , Sawitri Dewi Khrisna
Published: March 2022

Online distance learning has been implemented as the most possible alternative at this time for continuous learning while maintaining a distance to prevent the spread of the corona virus and obeying the rules not to gather in one place. Research was conducted to investigate the effectiveness of online learning by distributing questionnaire through the google form link. Data were obtained from 112 students related to media and learning methods that support the implementation of effective online learning . The result showed that 71% or 80 students mentioned that online learning at their university is effective. Blended Learning which is a combination of system synchronous learning and asynchronous learning is chosen by the majority of respondents. Related with the learning media, the use of google meet is the most popular learning media because apart from being able to be used as a medium in synchronous learning, it can also be used in the synchronous learning through Google classroom.
The Impact of Hedonic Buying Motivation, Shopping Way of Life, Positive Emotion, and Variety of Selection on Impulse Searching for in Tokopedia Online Shop
Authors: Putri Ekanova Angga , Anisah Anisah , Handrijaningsih Lies , Mariani T.R Septi
Published: March 2022

The advancement of communication and information technology is increasing rapidly. Utilization of the Internet is an inseparable part of people's lives, so that many companies use internet services for both personal and business activities. The e-commerce business is Tokopedia. The reason of this take a look at is to decide and examine the influence of hedonic buying motivation, shopping way of life, positive emotion, and variety of selection on impulse searching for in Tokopedia online shop. The population in this study are consumers who use the Tokopedia application. The sample used turned into 100 respondents. The sampling technique is non opportunity sampling method. The method used is purposive sampling. The trying out tool used is SPSS. The test stages executed had been validity test, reliability test, normality take a look at, multicollinearity take a look at, heteroscedasticity take a look at, a couple of linear regression test, t test, F test, and coefficient of determination. The results of this study indicate that partially hedonic buying motivation, shopping way of life, positive emotion and variety of selection on impulse searching for in Tokopedia online shop. Simultaneously hedonic buying motivation, shopping way of life, positive emotion and variety of selection on impulse searching for in Tokopedia online shop.
Analysis of Intercultural Communication in Implementation of Independent Student Exchange Program
Authors: Yusup Eka , Gemiharto Ilham
Published: March 2022

Since 2021 the Ministry of Education, Culture, Research and Technology has launched the Independent Student Exchange program as part of the Merdeka Campus Program. The Independent Student Exchange Program began to open online registration in June 2021, and has now entered the program implementation stage. One of the main goals of the Independent Student Exchange Program is to explore and get to know the cultural diversity of the archipelago and make friends with fellow students from different cultural backgrounds. This study aims to analyze aspects of intercultural communication that occur in the implementation of the Independent Student Exchange Program, such as how cultural interactions among students, how each student displays their cultural identity, and how to adapt to fellow students. This research uses a qualitative approach, an exploratory paradigm, in a case study perspective. The data collection process was carried out under natural conditions in the form of observation, in-depth interviews and documentation studies. This study concludes that although there are many differences in cultural backgrounds, students try to adapt to their peers who have different cultural backgrounds. The main obstacle in intercultural communication is the language barrier, because even though both speak Indonesian, the influence of local languages is still very strong, so sometimes the same vocabulary has different meanings and meanings. The results of the study also found several cases related to stereotypes against certain ethnic groups, the existence of ethnocentrism among program participants and various difficulties in adapting to fellow program participants.
Strategies for Maintaining Tax Compliance of SMEs During Covid-19 Pandemic by Using Supply Chain Management Integration Approach
Authors: Fahriyah Aramia , Andayani Wuwuh , Yoseph Rochland , Nurwibowo S. Penta , Irawan Wendy
Published: March 2022

The new normal life of Covid-19 pandemic has brought a new life pattern which is more strict health protocols in the interaction among each other. In the normal time, although the level of tax revenue shows a rising trend, the tax ratio hasn’t shown any significant increase. Also, it is still left behind other developing countries. Related to the pandemic effect, the world economy is decreasing and resulting to the decline of the Indonesian tax revenue. The concerns of this study are on how to optimize the compliance level of tax payment from Small-Medium Sized Enterprises (SMEs) and the efforts of optimization needed to be done including in helping SMEs for being able to survive and or to be improved in terms of its business performance. Thus, they can contribute to maintaining their tax compliance at the same time from getting worse. This study employed a descriptive research method using a qualitative approach. The data sources were primary and secondary data. In this study, an operational management tool which is the approach of Supply Chain Management (SCM) integration will be implemented as the solution. It is found that the gradual application of the concept of SCM integration will give several significant impacts on the SMEs’ performance including their compliance with the existed tax regulations. Also, this will encourage the optimal taxation authority in managing the tax participation of the SMEs sector.
The Effect of the Implementation of E-Invoice 3.0 and Taxable Person Compliance to Value Added Tax Revenue at KPP Pratama Pasar Rebo
Authors: Irawati Irawati , Darmawan Hendra , Sofyan Muhammad , Serebryakova Tatiana
Published: March 2022

Compliance of Taxable Person (PKP) is a complicated problem related to the implementation of an e-invoice application, especially the knowledge and perceptions of those who consider that making electronic-based tax invoices is difficult to do. This study aims to determine and analyze the effect of the e-invoice 3.0 application and Taxable Person compliance on the increase in VAT revenues. To obtain the research sample, the author used a non-probability sampling technique with the convenience sampling method. The results showed that e-invoice 3.0 implementation and Taxable person compliance simultaneously had a positive and significant effect on VAT revenues with a value of 113,819. The author provides suggestions for the Primary Tax Office of Pasar Rebo, Jakarta to continue improving its services in providing information and campaign related to the use of e-invoice 3.0 to Taxable person to improve their compliance and also to increase the amount of tax revenue which can affect VAT revenues.