bluuebunny/crossref_metadata_2025 huggingface dataset:
CORALIE radial-velocity search for companions around evolved stars (CASCADES)
Authors: Pezzotti C. , Ottoni G. , Buldgen G. , Lyttle A. , Eggenberger P. , Udry S. , Ségransan D. , Mayor M. , Lovis C. , Marmier M. , Miglio A. , Elsworth Y. , Davies G. R. , Ball W. H.
Published: April 2021

Context. Increasing the number of detected exoplanets is far from anecdotal, especially for long-period planets that require a long duration of observation. More detections imply a better understanding of the statistical properties of exoplanet populations, and detailed modelling of their host stars also enables thorough discussions of star–planet interactions and orbital evolution of planetary systems.

Aims. In the context of the discovery of a new planetary system, we aim to perform a complete study of HD 29399 and its companion by means of radial-velocity measurements, seismic characterisation of the host-star, and modelling of the orbital evolution of the system.

Methods. High-resolution spectra of HD 29399 were acquired with the CORALIE spectrograph mounted on the 1.2-m Swiss telescope located at La Silla Observatory (Chile) as part of the CASCADES survey. We used the moments of the cross-correlation function profile as well as the photometric variability of the star as diagnostics to distinguish between stellar and planetary-induced signals. To model the host star we combined forward modelling with global and local minimisation approaches and inversion techniques. We also studied the orbital history of the system under the effects of both dynamical and equilibrium tides.

Results. We present the detection of a long-period giant planet. Combining these measurements with photometric observations by TESS, we are able to thoroughly model the host star and study the orbital evolution of the system. We derive stellar and planetary masses of 1.17 ± 0.10 M⊙ and 1.59 ± 0.08 MJup, respectively, and an age for the system of 6.2 Gyr. We show that neither dynamical nor equilibrium tides have been able to affect the orbital evolution of the planet. Moreover, no engulfment is predicted for the future evolution of the system.
Vorsorgeuntersuchungen und Routineimpfungen bei Vorschulkindern – Eine Analyse zum wechselseitigen Teilnahmeverhalten unter Einbeziehung der Lebensverhältnisse
Authors: Stich Heribert
Published: April 2021

Ziel der Studie U-Vorsorgeuntersuchungen und Impfungen sind zentrale Vorsorgemaßnahmen des Kindesalters, wobei bisher keine quantitativen Angaben zu deren wechselseitiger Akzeptanz vorlagen. Ziel dieser Studie war die Quantifizierung dieser Verteilungsmuster und Identifikation von Assoziationen zwischen Vorsorgeuntersuchungen und definierten Routineimpfungen bei Einschulungskindern unter Berücksichtigung des sozialen Umfeldes.

Methodik Im Rahmen der Schuleingangsuntersuchungen 2015 wurden unter anderem die dokumentierte U-Vorsorgeuntersuchungen und Routineimpfungen auf Stadtebene erfasst. Begleitend wurde ein freiwillig auszufüllender Proxy-Fragebogen an die Fürsorgeberechtigten der Einschulungskinder ausgegeben, um ergänzend Merkmale der familiären Lebensverhältnisse zu erfassen. Unter Verwendung von SPSS 25.0 wurden die Teilnahmequoten aller U-Vorsorgeuntersuchungen und definierter Routineimpfungen nebst spezifischer Kreuzprävalenzen und Risikoschätzer errechnet.

Ergebnisse Von den 407 Einschulungskindern wurden bei 76,8% der Vorschulkinder beide Präventionsmaßnahmen vollständig durchgeführt, wobei innerhalb der gesamten Studienkohorte von 280 (68,8%) ein Zusatzfragebogen abgegeben wurde. Am häufigsten hatten in Deutschland geborene Kinder zu 70,3% und zu 69,7% mit deutscher Nationalität komplette Vorsorgeuntersuchungen mit zugleich vollständigem Impfstatus. Hinsichtlich des familiären Umfeldes hatten Kinder mit Geschwistern (17,5%), Kinder mit getrenntlebenden Elternteilen (13,3%) und Familien mit bis zu 4 näheren Angehörigen (7,1%) deutlich seltener alle Vorbeugemaßnahmen komplett als andere. Die stärksten Assoziationen in Hinblick auf unvollständige Vorsorgeuntersuchungen waren für ein nichtdeutsches Geburtsland des Kindes (OR=7,95) und für eine nichtdeutsche Nationalität mindestens eines Elternteiles (OR=4,52) vorzufinden.

Schlussfolgerungen Die identifizierten Verteilungsmuster und Assoziationen lieferten neue Erkenntnisse für die Etablierung von risikogruppenspezifischen Maßnahmen zur Steigerung der Akzeptanz sowohl bei U-Vorsorgeuntersuchungen als auch in Hinblick auf definierte Routineimpfungen. Dadurch kann eine bedarfsoptimierte Gesundheitsversorgung bei Kindern im Sinne eines sozialkompensatorischen Ansatzes ermöglicht werden.
Mariendistel – Arzneipflanze des Jahres 2021 in Österreich
Authors: Chrubasik-Hausmann Sigrun
Published: April 2021

Obwohl schon im Mittelalter bei Lebererkrankungen genutzt, ist die klinische Wirksamkeit immer noch nicht zweifelsfrei belegt – auch nicht für andere vielversprechende Indikationen
Erhöhte Leberwerte
Authors: Holstege Axel
Published: April 2021

Erhöhte Leberwerte sind ein häufiger klinischer Befund, der bei symptomatischen Patienten, aber auch als symptomloser Zufallsbefund auftreten kann. Der vorliegende Beitrag erläutert, wie das Muster bestimmter pathologisch veränderter Leberwerte bereits eine erste differenzialdiagnostische Eingliederung ermöglicht und in welchen Fällen eine weiterführende Diagnostik notwendig ist.
Failure of the Ottawa Score to Predict the Risk of Recurrent Venous Thromboembolism in Cancer Patients: The Prospective PREDICARE Cohort Study
Authors: Girard Philippe , Laporte Silvy , Chapelle Céline , Falvo Nicolas , Falchero Lionel , Cloarec Nicolas , Monnet Isabelle , Burnod Alexis , Tomasini Pascale , Boulon Carine , Debourdeau Philippe , Boutruche Bettina , Scotté Florian , Lamblin Anne , Meyer Guy
Published: April 2021

Introduction Recurrent venous thromboembolism (VTE) despite curative anticoagulation is frequent in patients with cancer. Identifying patients with a high risk of recurrence could have therapeutic implications. A prospective study was designed to validate the Ottawa risk score of recurrent VTE in cancer patients.

Methods In a prospective multicenter observational cohort, adult cancer patients with a recent diagnosis of symptomatic or incidental lower limb deep vein thrombosis or pulmonary embolism (PE) were treated with tinzaparin for 6 months. The primary endpoint was the recurrence of symptomatic or asymptomatic VTE within the first 6 months of treatment. All clinical events were centrally reviewed and adjudicated. Time-to-event outcomes were estimated by the Kalbfleisch and Prentice method to take into account the competing risk of death. A C-statistic value of > 0.70 was needed to validate the Ottawa score.

Results A total of 409 patients were included and analyzed on an intention-to-treat basis. Median age was 68 years, 60.4% of patients had PE, and VTE was symptomatic in 271 patients (66.3%). The main primary sites were lung (31.3%), lower digestive tract (14.4%), and breast (13.9%) cancers. The Ottawa score was high (≥ 1) in 58% of patients. The 6-month cumulative incidence of recurrent VTE was 7.3% (95% confidence interval [CI]: 4.9–11.1) overall, and 5.0% (95% CI: 2.3–10.8) versus 9.1% (95%CI: 6.1–13.6) in the Ottawa low versus high risk groups, respectively. The C-statistic value was 0.60 (95% CI: 0.55–0.65).

Conclusion In this prospective cohort of patients with cancer receiving tinzaparin for VTE, the Ottawa score failed to accurately predict recurrent VTE.
Fibrinolysis in Traumatic Brain Injury: Diagnosis, Management, and Clinical Considerations
Authors: Anderson Taylor N. , Farrell David H. , Rowell Susan E.
Published: April 2021

Posttraumatic coagulopathy involves disruption of both the coagulation and fibrinolytic pathways secondary to tissue damage, hypotension, and inflammatory upregulation. This phenomenon contributes to delayed complications after traumatic brain injury (TBI), including intracranial hemorrhage progression and systemic disseminated intravascular coagulopathy. Development of an early hyperfibrinolytic state may result in uncontrolled bleeding and is associated with increased mortality in patients with TBI. Although fibrinolytic assays are not routinely performed in the assessment of posttraumatic coagulopathy, circulating biomarkers such as D-dimer and fibrin degradation products have demonstrated potential utility in outcome prediction. Unfortunately, the relatively delayed nature of these tests limits their clinical utility. In contrast, viscoelastic tests are able to provide a rapid global assessment of coagulopathy, although their ability to reliably identify disruptions in the fibrinolytic cascade remains unclear. Limited evidence supports the use of hypertonic saline, cryoprecipitate, and plasma to correct fibrinolytic disruption; however, some studies suggest more harm than benefit. Recently, early use of tranexamic acid in patients with TBI and confirmed hyperfibrinolysis has been proposed as a strategy to further improve clinical outcomes. Moving forward, further delineation of TBI phenotypes and the clinical implications of fibrinolysis based on phenotypic variation is needed. In this review, we summarize the clinical aspects of fibrinolysis in TBI, including diagnosis, treatment, and clinical correlates, with identification of targeted areas for future research efforts.
Fundamentals of Wound Healing
Authors: Stallworth Christian L.
Published: April 2021

At the moment of soft tissue injury, an immediate wound healing ballet commences. This coordinated cascade of events works over minutes, hours, weeks, and months to restore tissue integrity and viability in an attempt to rebuild the site to its preinjured state. A thorough understanding of these processes, and options to navigate forks in the road, can help guide patient selection, surgical planning and execution, management of complications, and ultimately the restoration of tissue form and function for optimal outcomes. An exhaustive account of tissue healing mechanics is beyond the scope of this writing. However, a summation of much that is known of these processes and the directions research and therapeutic developments are currently aimed will help the facial plastic surgeon prevent or minimize debilitating functional and cosmetic consequences in the head and neck.
Trials and Tribulations: mHealth Clinical Trials in the COVID-19 Pandemic
Authors: Indraratna Praveen , Biswas Uzzal , Yu Jennifer , Schreier Guenter , Ooi Sze-Yuan , Lovell Nigel H. , Redmond Stephen J.
Published: April 2021

Introduction: Mobile phone-based interventions in cardiovascular disease are growing in popularity. A randomised control trial (RCT) for a novel smartphone app-based model of care, named TeleClinical Care - Cardiac (TCC-Cardiac), commenced in February 2019, targeted at patients being discharged after care for an acute coronary syndrome or episode of decompensated heart failure. The app was paired to a digital sphygmomanometer, weighing scale and a wearable fitness band, all loaned to the patient, and allowed clinicians to respond to abnormal readings. The onset of the COVID-19 pandemic necessitated several modifications to the trial in order to protect participants from potential exposure to infection. The use of TCC-Cardiac during the pandemic inspired the development of a similar model of care (TCC-COVID), targeted at patients being managed at home with a diagnosis of COVID-19.

Methods: Recruitment for the TCC-Cardiac trial was terminated shortly after the World Health Organization announced COVID-19 as a global pandemic. Telephone follow-up was commenced, in order to protect patients from unnecessary exposure to hospital staff and patients. Equipment was returned or collected by a ‘no-contact’ method. The TCC-COVID app and model of care had similar functionality to the original TCC-Cardiac app. Participants were enrolled exclusively by remote methods. Oxygen saturation and pulse rate were measured by a pulse oximeter, and symptomatology measured by questionnaire. Measurement results were manually entered into the app and transmitted to an online server for medical staff to review.

Results: A total of 164 patients were involved in the TCC-Cardiac trial, with 102 patients involved after the onset of the pandemic. There were no hospitalisations due to COVID-19 in this cohort. The study was successfully completed, with only three participants lost to follow-up. During the pandemic, 5 of 49 (10%) of patients in the intervention arm were readmitted compared to 12 of 53 (23%) in the control arm. Also, in this period, 28 of 29 (97%) of all clinically significant alerts received by the monitoring team were managed successfully in the outpatient setting, avoiding hospitalisation. Patients found the user experience largely positive, with the average rating for the app being 4.56 out of 5. 26 patients have currently been enrolled for TCC-COVID. Recruitment is ongoing. All patients have been safely and effectively monitored, with no major adverse clinical events or technical malfunctions. Patient satisfaction has been high.

Conclusion: The TCC-Cardiac RCT was successfully completed despite the challenges posed by COVID-19. Use of the app had an added benefit during the pandemic as participants could be monitored safely from home. The model of care inspired the development of an app with similar functionality designed for use with patients diagnosed with COVID-19.
Managing Pandemic Responses with Health Informatics – Challenges for Assessing Digital Health Technologies
Authors: Magrabi Farah , Ammenwerth Elske , Craven Catherine K. , Cresswell Kathrin , De Keizer Nicolet F. , Medlock Stephanie K. , Scott Philip J. , Wong Zoie Shui-Yee , Georgiou Andrew
Published: April 2021

Objectives: To highlight the role of technology assessment in the management of the COVID-19 pandemic.

Method: An overview of existing research and evaluation approaches along with expert perspectives drawn from the International Medical Informatics Association (IMIA) Working Group on Technology Assessment and Quality Development in Health Informatics and the European Federation for Medical Informatics (EFMI) Working Group for Assessment of Health Information Systems.

Results: Evaluation of digital health technologies for COVID-19 should be based on their technical maturity as well as the scale of implementation. For mature technologies like telehealth whose efficacy has been previously demonstrated, pragmatic, rapid evaluation using the complex systems paradigm which accounts for multiple sociotechnical factors, might be more suitable to examine their effectiveness and emerging safety concerns in new settings. New technologies, particularly those intended for use on a large scale such as digital contract tracing, will require assessment of their usability as well as performance prior to deployment, after which evaluation should shift to using a complex systems paradigm to examine the value of information provided. The success of a digital health technology is dependent on the value of information it provides relative to the sociotechnical context of the setting where it is implemented.

Conclusion: Commitment to evaluation using the evidence-based medicine and complex systems paradigms will be critical to ensuring safe and effective use of digital health technologies for COVID-19 and future pandemics. There is an inherent tension between evaluation and the imperative to urgently deploy solutions that needs to be negotiated.
Multidisciplinary Sprint Program Achieved Specialty-Specific EHR Optimization in 20 Clinics
Authors: Sieja Amber , Kim Eric , Holmstrom Heather , Rotholz Stephen , Lin Chen Tan , Gonzalez Christine , Arellano Cortney , Hutchings Sarah , Henderson Denise , Markley Katie
Published: April 2021

Objective The objective of the study was to highlight and analyze the outcomes of software configuration requests received from Sprint, a comprehensive, clinic-centered electronic health record (EHR) optimization program.

Methods A retrospective review of 1,254 Sprint workbook requests identified (1) the responsible EHR team, (2) the clinical efficiency gained from the request, and (3) the EHR intervention conducted.

Results Requests were received from 407 clinicians and 538 staff over 31 weeks of Sprint. Sixty-nine percent of the requests were completed during the Sprint. Of all requests, 25% required net new build, 73% required technical investigation and/or solutions, and 2% of the requests were escalated to the vendor. The clinical specialty groups requested a higher percentage of items that earned them clinical review (16 vs. 10%) and documentation (29 vs. 23%) efficiencies compared with their primary care colleagues who requested slightly more order modifications (22 vs. 20%). Clinical efficiencies most commonly associated with workbook requests included documentation (28%), ordering (20%), in basket (17%), and clinical review (15%). Sprint user requests evaluated by ambulatory, hardware, security, and training teams comprised 80% of reported items.

Discussion Sprint requests were categorized as clean-up, break-fix, workflow investigation, or new build. On-site collaboration with clinical care teams permitted consensus-building, drove vetting, and iteration of EHR build, and led to goal-driven, usable workflows and EHR products.

Conclusion This program evaluation demonstrates the process by which optimization can occur and the products that result when we adhere to optimization principles in health care organizations.
Zur richtigen Zeit am richtigen Ort: Moderatoren von Planungsprozessen
Authors: Rößing Sabine
Published: April 2021

Die Logistik im Krankenhaus wird zum Megathema. Es geht um Nachschubsicherung, Monitoring, Koordination und Timing. Vor allem in der Pandemie gilt: schnelle Reaktion und präzise Planung sichern Lieferperspektiven.
Das flexible Beschaffungsinstrument: Rahmenverträge im Vergaberecht: Nur richtig ist richtig gut!
Authors: Matthias Kühn
Published: April 2021

Rahmenverträge mit einem oder mehreren Lieferanten bieten Kliniken in öffentlich-rechtlicher Trägerschaft flexible und gleichzeitig rechtssichere Beschaffungsmöglichkeiten. Dabei gilt es, frühzeitig die Funktionsweise, die Handlungsspielräume und deren rechtliche Grenzen zu erkennen und richtig umzusetzen, um das Beste aus einer Ausschreibung über einen Rahmenvertrag herauszuholen.
Introduction: The nature of political opposition in contemporary electoral democracies and autocracies
Authors: Helms Ludger
Published: April 2021

At the level of regime typologies, the uncertain status and inherent weakness of the opposition mark defining features of regimes beyond liberal democracy. However, even the performance and evolution of the latter tend to be shaped by oppositions and the regime’s approach to dealing with them. This article offers a bird’s-eye view of political oppositions in contemporary electoral democracies and competitive autocracies. It focuses on patterns of strategic choices and behavior by both governments and oppositions. That endeavor forms part of a larger joint venture seeking to give center stage to those actors living in the shadows of increasingly unscrupulous power-holders.
Radar measurements assess the integrity of concrete civil structures after fires
Authors: Bandari Anashe
Published: April 2021

Researchers develop a technique for detecting internal structural damage caused by building fires that can be otherwise tricky to detect nondestructively.
Fabricating thousands of microscopic air bridges on a single chip
Authors: Kim Meeri
Published: April 2021

A tri-layer resist process with electron-beam lithography has been optimized for the creation of air bridges for specialized quantum devices.
Electrical unfolding of cytochrome
c
during translocation through a nanopore constriction
Authors: Tripathi Prabhat , Benabbas Abdelkrim , Mehrafrooz Behzad , Yamazaki Hirohito , Aksimentiev Aleksei , Champion Paul M. , Wanunu Meni
Published: April 2021

Significance

Can localized electric fields drive the complete unfolding of a protein molecule? Protein unfolding prior to its translocation through a nanopore constriction is an important step in protein transport across biological membranes and also an important step in nanopore-based protein sequencing. We studied here the electric-field–driven translocation behavior of a model protein (cyt
c
) through nanopores of diameters ranging from 1.5 to 5.5 nm. These single-molecule measurements show that electric fields at the nanopore constriction can select both partially and fully unfolded protein conformations. Zero-field free energy gaps between these conformations, found using a simple thermodynamic model, are in remarkable agreement with previously reported studies of cyt
c
unfolding energetics.
Momordica balsamina (common balsam apple).
Authors: Duenas-Lopez Manuel Angel
Published: April 2021

Momordica balsamina is native to South Africa and tropical Africa, tropical Asia, Arabia, India and Australia. It is a trailing or climbing annual or perennial tendril-bearing herb. Introduced in parts of the Neotropics and North America and Pakistan, M. balsamina has been introduced intentionally, occurring in the wild as an escapee from cultivation. This species is used for medicinal purposes. M. balsamina is reported as an invasive species in India. It is very invasive in northern Australia, where it is found in highly disturbed habitats, outcompeting native vegetation. In Florida, gardeners have reported it as a noxious weed in gardens and allotments.
Exact Solution for an Elastic Square Plate Loaded with Tangential Stresses
Authors: Menshova I V , Kerzhaev A P , Yu G , Zeng X
Published: April 2021

This paper provides an exact solution to the boundary value problem of elasticity theory for a square loaded with tangential stresses along all its sides (even-symmetric deformation with respect to the central axes). The solution is represented as series in Papkovich–Fadle eigenfunctions. The coefficients of the series are determined by simple closed formulas.
Business Process Improvement (BPI) with Enterprise Resource Planning (ERP) Financial & Control (FICO) and Procurement Modules Using SAP S/4 HANA to Handle Non-Banking Processes in Case Study: PT Bank Mantap
Authors: Utomo Sasmito Budi , Yuliani Eka Widya , Wulandari Nita
Published: April 2021

PT Bank Mantap is a private bank that manages pension funds in Indonesia. Currently, banking and non-banking process are handled by the Core Banking application. However, in the non-banking process, it is just limited in making a journal, the other non-banking processes are still done manually, so it takes a long time. This is causes various problem, such as the results of calculation of transaction data are less accurate, the process of making journals takes a long time, information between Finance and Procurement department is not integrated and the purchase request form is not standardized. From those problems, PT Bank Mantap has difficulty analyzing its financial data. Therefore, PT Bank Mantap conducts Business Process Improvement (BPI) by improving existing business processes by implementing Enterprise Resource Planning (ERP) Finance & Controlling (FICO) and Procurement modules using SAP S/4 HANA. It is the latest generation of the business suite from SAP that can help customers to simplify the company business process in an integrated environment. The results of this implementation can solve the problems encountered in which business processes become more effective, integrated, and the calculation results of transaction data become more accurate.
Determinants Effectiveness Information Technology Governance in Higher Education Institution (HEI) using partial least squares structural equation modeling approach (PLS-SEM)
Authors: Fattah Anwar , Setyadi Resad
Published: April 2021

Information technology supports the achievement of business organization objectives. The Higher Education institution is a business organization engaged in the field of education. Effective IT governance will ensure alignment between IT and business goals. Organizations with ineffective IT governance will suffer due to poor performance of IT resources such as inaccurate information quality, inefficient operating costs, runaway IT project and even the demise of its IT department. This study seeks to examine empirically the individual IT governance mechanisms that influence the overall effectiveness of IT governance. Furthermore, this study examines the relationship of effective IT governance and IT Innovation within the Higher education organizations. The sampling technique to be carried out in this study is a multi-stage purposeful random sampling. In sequence, researchers will combine surveys through online. The quantitative data were analyzed by the smallest partial quadratic structural equation method (PLS-SEM) using Smart PLS 3.0. The results obtained from this dataset show a positive significant relationship between effective IT governance and the following mechanisms: IT Steering Committee, Involvement of Senior management in IT, and Organizational Communication System. Also a positive relationship between ITG Effectiveness within IT Innovation. Organizational Communication System and IT Innovation have a positive significant relationship, and negative relationship with insignificant for Organizational Performance Measurement System.
A Tourist Tracking Model by Tourist Bureau
Authors: Rusdi Jack Febrian , Salam Sazilah , Abu Nur Azman , Sunaryo Budi , Naseer Muchammad , Setiawan Awan , Kchouri Mohammad , Taufiq Rohmat , Respati Rella Dwi , Alam Sitti Nur , Sarah Siti , Rusmartiana Arlinda , Rahmawati Sri
Published: April 2021

Tour guides are the critical services for the Travel Bureau. Especially for the services, they provide to tourists. So, a realtime system is needed to be able to interact between the two parties, especially regarding service records in the field and information processing for the Bureau. Based on ScienceDirect library, unfortunately, until there was no reporting system facilitate both parties and recorded in realtime. This study discusses software development solutions that receive various field notes by workers and can be directly viewed online for employers. This research is in the form of a reporting model, which is a solution for the Travel Bureau to have data and be stored electronically on the server. The system was built using a platform that is on a smartphone, so the tour guide reporting system becomes a solution for the Travel Bureau and the Tour Guide to document the trips carried out.
Field Reporting Irrigation System via Smartphone
Authors: Rusdi Jack Febrian , Salam Sazilah , Abu Nur Azman , Sunaryo Budi , Naseer Muchammad , Rismayadi Danny Aidil , Kodong Frans Richard , Sudarsono Ignatius , Utomo Eko Wahyu , Yuhefizar  , Pitogo Vicente Aquino , Shanono Nuruddeen Musa
Published: April 2021

Irrigation is one of the backbones in the field of agriculture. The role of technology in the industrial era 4.0 has increased tremendously in irrigation management systems. Areas, limited internet access, and validation of activity reports are separate issues in monitoring the performance of irrigation field workers in real-time. Therefore, we built a reporting system that is equipped with location tracking using the Smartphone Global Positioning System (GPS) and the Web Geographic Information System (WebGIS) application. This field reporting system starts from the report input form on the Android app that detects location coordinates automatically. Reports are stored in an offline SQLite database and sent to the MySQL database server online through the data synchronisation process. From the server-side, information displayed through the WebGIS application. This field reporting is more efficient in monitoring the performance of irrigation systems in real-time.
Factors Which Influence The Success of Google Classroom Based on Age
Authors: Wulan Sari Nariza Wanti , Wulansari Tina Tri , Yanuartha Wahyu , Sipayung Maurits Sahata , Pribadi Agung Sakti
Published: April 2021

Many institutions use classroom virtual as support for student learning processes, including Google Classroom. The Samarinda Mulia University has been using Google Classroom since first released in 2014. The age characteristics of the respondents are considered to influence preferences towards the acceptance and use of a system. In this study, the test was conducted on the success of the Google Classroom to find out the factors that influence the success of the Google Classroom at Samarinda Mulia University based on the user’s age. Measure the success of Google Classroom using the Delone & McLean method. It has six evaluation variables that are information quality, system quality, service quality, user satisfaction, and net benefit. Data collected by questionnaires and in-depth interviews with almost two hundred Samarinda Mulia University students. The results show that there are differences in factors that influence the success of Google Classroom in users aged over 25 years and under 25 years.
Object Separation System Based on Height Differences Automatically
Authors: Sahara Ain , Saputra Riza Hadi , Hendra Baba
Published: April 2021

Technological advances are now launching the industrial revolution 4.0, where an automation system is an essential tool in the industrial world. In the industrial world, we need a tool that can accelerate and produce processes that can run effectively and efficiently and can improve the quality and needs of production. Therefore a prototype of a high-based object sorting conveyor is controlled by Arduino Uno which controls the automatic item sorting process. This conveyor prototype uses the HC-SR04 Ultrasonic Sensor component with the aim that it can be applied to facilitate the process of selecting objects in the industrial field. Also, Arduino Uno has made a program in advance using a programming language created on specialised software to produce outputs that control the process of sorting objects. This prototype is then programmed to be able to make automatic item selection with a maximum limit of objects that can be accommodated by the conveyor is 200 grams, with variations in the height of the object reaching 1-6 cm. Based on data from the test results, the prototype conveyor has a success rate in selecting objects of ± 92%.
The Effectiveness Extract of Curcuma Xanthorriza Roxb to Decrease Histopathology Brain Pressure in Male Mice (Mus Musculus)
Authors: Damayantie Wury , Retno Eka Kumala , Zahra Syarifah
Published: April 2021

This study was to determine the effect of Curcuma extract on brain histopathology in hypertensive-induced male mice compared with captopril administration. Curcuma was extracted using remaseration method using 96% ethanol solvent. Induction of hypertension using L-name for 4 weeks where the first 2 weeks are given before therapy then the next 2 weeks are given with therapy. The therapy used is curcuma extract and captopril as control therapy. This study used four groups of mice that group distilled water, L-Name, captopril and curcumin with the average yield is 42 ± 11.81, 57.51 ± 166, 119 ± 8.40, and 111.5 ± 14.20. Results of analysis using Tukey’s Post Hoc test showed that there was no significant difference between groups aquades, captopril, and extract Curcuma xanthorriza but there are significant differences between the groups of L-Name with the other three groups. It can be concluded that captopril can reduce the amount of damage to brain cells in male mice but not as good as Curcuma xanthorriza extract.
Efficiency Analysis of Data Warehouse Implementation for Forestry Industry Reports
Authors: Wibisono Yusuf , Adriyanto Mohamad , Sigalayan Sigit
Published: April 2021

As one of the environmentally sensitive areas, the forestry industry required fast and accurate data processing for decision making, and data warehouses could be used to meet those needs. Decision-makers need aggregate, historical, and multi-dimensional data. Provided a data warehouse to present aggregate data could improve efficiency in presenting data. In this study, the data warehouse was built using the fact constellation scheme and the ETL process using query commands in MySQL. The level of efficiency was measured by comparing the number of tables, record length, number of records, and total bytes needed for each report. The efficiency of the report presentation was also compared with OLTP data and from the data warehouse. The test results in data management obtained an efficiency level of 56% for the number of tables, 145% for the length of records, 15,833% for the number of records, and 48,846% for the total bytes. On average, the level of efficiency in data management was 15,720%, while the efficiency of report presentation speed was 852%. This study showed that the use of data warehouses was very efficient in managing aggregate data for the forestry industry.
A New Model of The Student Attendance Monitoring System Using RFID Technology
Authors: Ula Mutammimul , Pratama Angga , Asbar Yuli , Fuadi Wahyu , Fajri Riyadhul , Hardi Richki
Published: April 2021

The development of information technology today has been widely used to provide convenience, speed up, and streamline work. Presence system that is still applied is the type of precession using manual presence using paper media and is inefficient when viewed in terms of time, a recapitulation of data on the existence and accuracy or authenticity of the data presented. There is still often the habit of leaving a signature as proof of an employee’s presence. This study aims to provide a new model for conducting of presence, a presence system that uses RFID technology. RFID will utilize sensors to read data. The use of RFID is to facilitate lecturers and students in monitoring class attendance. On the RFID card, there is a radio frequency mounted affixed to the reading machine; the system will automatically send student data into the database. Thus, students can do it quickly, and data can also be agreed promptly and adequately. In addition, students and lecturers are also motivated to arrive early because the system can store and display data directly.
Prediction of Meteorological Parameter Time Series Data for the Forest Fire Early Warning System
Authors: Hadisuwito A S , Hassan F H
Published: April 2021

A forest fire early warning system must be developed to reduce the impact of greater community losses. One effort to develop an early warning system is to use a forest fire hazard index as a potential assessment guide. The main factor which is a parameter in the fire hazard index calculation method is the meteorological parameter. In general, to know today’s fire hazard index is calculated from today’s weather conditions, but the need for an early warning system is to know the future fire hazard index. Based on a series of meteorological conditions data held for thirty-six months, using the backpropagation algorithm, it is estimated that the meteorological conditions will be several months to come. Several meteorological parameters have their respective roles, the unknown contribution of which is calculated. In this study, each parameter will be measured by predicting time series data and compared with the results of calculations. The method of calculating the forest fire index used is the McArthur Forest Fire Danger Index with the meteorological parameter elements are temperature, relative humidity, wind speed, and drought factor. Each parameter was trained in artificial neural networks and tested its predictions to produce accuracy for data series temperatures of 91.67%, the relative humidity of 83.33%, and wind speed of 50%.
Analysis of Community Response to Disasters through Twitter Social Media
Authors: Junaidi Apri , Kresna A Iqsyahiro , Hardi Richki
Published: April 2021

Disasters that occur in a place can give a variety of reactions in the community. Social media users, the dissemination of Twitter with followers, makes it easy and fast to share emergency information like a disaster. Some disasters often occur in Indonesia, such as earthquakes, volcanic eruptions, weather anomaly, and flooding. To find out the public response to an accident, researchers conducted twitter data crawling on July 26, 2019, to July 29, 2019, using the keyword “gunung tangkuban parahu erupsi”, crawling data produced a dataset of 14,045 records. This study calculates the number of tweets before the disaster, to several days after the accident. The results of the survey indicate the response of the community to disasters relatively increased on the first day of the crash and decreased after two or three days after the disaster.
Integration of Academic Mobile Applications at University
Authors: Gunawan  , Sumardi  , Hardi Richki , Suprijadi  , Servanda Y
Published: April 2021

The development of android smartphones also plays a role in the world of education, such as the presence of android-based learning media, android-based educational information systems, and much more. If a few years ago, the academic information system was limited in the form of a website, now the academic information system has also begun to be developed on Android-based mobile devices. This is quite reasonable considering there is a myriad of advantages possessed by Android-based applications. By using an Android-based academic information system, application users can dig up information anywhere and anytime such as: Independent Lecture Schedule, Online SPP Payment (no need to queue) to fill KRS (Study Plan Card), see KHS (Study Result Card), Trusteeship, Discussions, value announcements and much more, all that can be done via a smartphone. It’s effortless, like “University Information and Communication Center in the Grip. The main advantage of developing the University Mobile Application is in terms of mobility. The application on an Android smartphone can be used anywhere and anytime. Thanks to these characteristics, Mobile Application University is the right answer to overcome obstacles in web-based or desktop-based academic information systems. With the Android-based educational information system application, information system users can access information directly from an Android smartphone. Aside from the mobility side, the development of an Android-based academic information system is also becoming increasingly optimal thanks to the smartphone’s distinctive features such as the notification feature. With the notification feature, the information will be more quickly distributed to application users. Of course, the use of an Android-based academic information system application is more effective when compared to using a web-based educational information system that must wait for users to access the web.
ICT Academy at the University
Authors: Pribadi Agung Sakti , Hardi Richki , Suhartati  , Kusdyawati Ririn , Sumardi
Published: April 2021

The effectiveness of ICT applications in the institutional management process is often hampered by many non-technical factors that are not prepared by the institution starting from the preparation of people, culture, organizational mechanisms, and even technical maintenance. Utilization of Information and Communication Technology (ICT) in the field of academic, administrative services in tertiary institutions becomes a necessity, not just prestige or lifestyle for modern tertiary education management. But in its implementation, many obstacles encountered by universities in implementing ICT are the institutional management process, both technical and non-technical factors. The effectiveness of ICT implementation in the management of tertiary institutions needs more attention, given its quite central role in the managerial decision-making process or other decisions. To increase the effectiveness of this implementation, which obviously will affect the efficacy of the achievement of the implementation of education carried out by the institution, the factors that influence the effectiveness of the application of ICT in institutional management, especially in terms of academic administration need to be examined more continued. This is intended to make the process of educational governance in higher education more effective and efficient so that it can support the achievement of high performance from the institution. This research aims to create an integrated academic system at tertiary institutions so that all educational processes can be easily carried out and known.
The effect of problem based learning oriented by lesson study with adobe flash on critical thinking skill
Authors: Purba Desi Natalia , Suyanti Retno Dwi , Juwitaningsih Tita
Published: April 2021

This study is aimed to determine the improvement of critical thinking skill using problem based learning oriented by lesson study with adobe flash compared to using direct instruction. A quasi-experimental design was employed for the study. The sample was selected purposive sampling technique. The experimental group was taught using problem based learning oriented by lesson study with adobe flash whiles the control group was taught using direct instruction. The data was collected using a critical thinking skill test consist of 20 multiple choices and statistically analyzed using SPSS software. The results showed that the improvement of critical thinking skill using problem based learning oriented by lesson study with adobe flash is better than using direct instruction.
Distance learning of ELT for Chinese students in ICUTK: digital literacy practices
Authors: Irawan N , Retnaningdyah P , Mustofa A
Published: April 2021

English Language Teaching (ELT) is part of a teaching and learning activity focused on English development. The ELT’s distance learning enactment is used for English communication. These activities may be linked to digital literacy practices, particularly for Chinese students as non-native speakers, in stimulating English as regular communication in spoken and written centered on communication. From distance learning, some Chinese ICUTK students have contributed a lot to using English to teach and practice contact at any time. Running digital literacy practices as an ELT approach and strategy will help improve English skills in the era of Industrial Revolution 4.0, especially by enacting distance learning from China Mainland to Thailand. The purpose of this research is to know how well students can learn ELT. It describes how essential social media platforms are in delivering ELT lessons for distance learning countries between Thailand and the People’s Republic of China and how Chinese students practice digital literacy through media apps synchronously and asynchronously. This study uses a qualitative approach focused on classroom learning. Simultaneously, researchers learn how useful ELT activity for Chinese students through asynchronous and synchronous methods such as WeChat apps and Ding Talks apps. These online platforms demonstrate how effective distance learning for Chinese students in the ELT is and how useful a forum is to help teach and learn in English.
The Estimation Stability Comparison of Participants’ Abilities on Scientific Literacy Test Using Rasch and One-Parameter Logistic Model
Authors: Susongko P
Published: April 2021

This research aims at comparing the estimation stability of participants’ abilities on scientific literacy test based on the integrated Sciences using Rasch Dichotomous Model and One-parameter Logistic Model (1-PL IRT). The research data was the responses of scientific literacy test based on the integrated Sciences involving 310 students joining the Mathematics and Natural Sciences Programs at SMA N 2 and SMA N 3 Tegal City, Indonesia. The estimation of test participants’ abilities with those two models was assisted with the eRm package and ltm package contained in the R program version 4.0.2. The next stage included analyzing mean, median, and variance of the estimation scores resulted from both models. Bootstrapping was then conducted to the parameter estimation using the new samples which have the same size with the original samples starting from 500, 800, 1000, 1500, 2000 2500, 3000 to 4000. The research result showed that the estimation of participants’ abilities in scientific literacy test based on the integrated Sciences using the Rasch Dichotomous Model was more stable than that using the 1- PL IRT seen from both bias and error standard. This means that Rasch modeling on high-stakes test assessments is more precise than using the One-Parameter Logistic Model.
Integration of Supply Management System in Auto Parts Company Using Web Services
Authors: Gunawan Indra , Witanti Wina , Renaldi Faiza
Published: April 2021

The web industry at this point is getting more and more aggressive to implement the concept of web services that provide message interoperability and data exchange interfaces. this is very useful in managing data from various web sites where data integration might occur. The case study of this research was carried out on managing auto parts supply, using research methods collecting and analyzing data structures, architectural design data, building web service, building APIs, testing, and measurement. Background and research objectives can be formulated how to combine data from various information system applications, into a supply management system that is designed using web service technology by managing API data on the REST server so that it can be used by REST clients. This paper results in the creation of a web service through a testing phase with 4 trials with a total data received 18.31KB and a total response time of under 2000ms.
Utilization of Ash from Municiple Solid Waste to Improve Physical - Mechanical Properties and Reduce of Cost Material in Manufacture of Batako
Authors: Mulyadi  , Djuhana  , Sunardi
Published: April 2021

Municipal solid waste processing is an important issue in every country, including Indonesia. The incineration treatment can minimize the volume of waste and produce heat and residue (ash). Ash produced can reach 10-20% of the initial volume of waste. This study was trying to reuse the ash resulted from the incineration of municiple solid waste to making of batako, which have an added value. The study of batako making used a mixture of ash from incinerators, sand and cement. Mixing composition of normal brick raw material is 25% by volume of cement and 75% by volume of sand. The addition of ash from the incinerator is done to substitute a portion of the volume of sand, which is varied as much as 10%, 20%, 30%, 40% and 50% by volume of the amount of sand used. All the raw materials were homogenously mixed and added 20% water from the total volume of material, and added 20% water from the total volume of material, then formed by pressing and followed by drying at room temperature for 14 days. The samples of batako were characterized for its density, water absoption and compressive strength. Based on the test results show that the density value tends to decrease and conversely the value of water absorption tends to increase with the increasing number of ash compositions. The concrete compressive strength value tends to increase significantly from the composition of ash 10% to 40%, but at the addition of 50% ash, the compressive strength value tends to be the same as samples using 40% ash. From the results of this study an optimal composition was obtained in a sample with 40% ash which has the characteristics of density = 1.68 g / cm3, water absorption = 18.89% and compressive strength =85.88 kgf/cm2