Demo Software Research Articles

Nurses' experiences and teaching suggestions regarding electronic patient record systems: Qualitative method study

AimThe study was conducted to determine nurses' experiences with electronic patient record systems and their suggestions for incorporating them into undergraduate nursing education. BackgroundThe integration of computers into healthcare represents one of the most significant developments of the 21st century. Understanding nursing professionals' experiences with electronic patient record systems and the innovations they seek in teaching can provide effective methods for training future users. DesignQualitative, cross-sectional, interpretive phenomenological design. MethodsThe study was conducted with 12 nurses. Data were collected through face-to-face interviews using semi-structured interview questions and analysed using content analysis. ResultsNurses' experiences were categorised into two main themes: using and teaching the Electronic Patient Record System. Participants reported difficulties related to inadequate physical infrastructure and software issues in the clinical setting. On the other hand, nurses acknowledged that electronic patient record systems enabled them to collect accurate, complete and traceable data, improved the quality of care and saved time for care. It was identified that nurses required training on these systems during their undergraduate education, especially learning from their colleagues. Participants suggested that teaching should involve the development of demo software. ConclusionsUsing electronic recording systems in hospitals enhances care management and facilitates documentation. Nurses recommend that students and practising nurses receive theoretical and practical training to adapt effectively to hospital systems. The development of demo software was proposed as a valuable educational tool.

Research is messy: Teaching students to expect non-linear research

As academic librarians, we provide an array of research services to support teaching and learning on campus. We lead instruction sessions on how to search databases effectively, demo software during workshops, and prepare guides on conducting research. We highlight tools and techniques that instill good research habits, helping students develop advanced research skills that they can use throughout their academic careers and beyond. Because librarians prepare for these activities, often with canned searches and preselected examples of good articles, we can make research look much easier than it is. The messiness of research and how literature searching fits within the larger research process often gets left out. As librarians, we are familiar with this messiness and may allude to it, but how often are we explicitly telling students what to expect?

Incerteza na estimativa de recarga de águas subterrâneas usando variação do nível das águas subterrâneas e teste de aquífero

ABSTRACT For sustainable groundwater management the rate of groundwater recharge and specific yield are both of the most important elements in the analysis and management of groundwater resources, and, sometimes, estimation of these parameters remains a challenge. This research presents a combining approach of the water-table fluctuation method (WTF) with an aquifer test to estimate both and quantify their uncertainty. The methodology requires at least three wells: two instrumented observation wells with a level sensor for long-term monitoring and a pump well located nearby for aquifer testing. The test interpretation was supported by the Aqtsolv Demo software obtaining the best fit with the method proposed by Tartakovsky-Neuman, with a specific yield varying, in 2σ, between 9.4% and 10.6%. Recharge was estimated with WTF, and the uncertainty in recharge is obtained by propagating the uncertainties about the specific yield (Bayesian inference) and the groundwater recession dynamics to the WTF. The uncertainty about recharge stems from uncertainty about the specific yield. The approach was applied on the campus of the Federal University of Pará, Belém, Brazil. Recharge was estimated at 1078.9 mm, from 03/sep/2020 to 30/sep/2021, with an associated uncertainty of 129.5 mm in 2σ, which equates to a range between 33.9 and 39.8% in terms of precipitation. Through the use of cost-effective instrumentation and interpretation methodology, replication of that approach can be encouraged to provide reliable estimates of recharge and specific yield in a site specific. Such condition can be useful to reduce the predictive uncertainty of groundwater management.

Solubility Enhancement of a Poorly Water-Soluble Drug Using Hydrotropy and Mixed Hydrotropy-Based Solid Dispersion Techniques.

The biopharmaceutics classification system places rosuvastatin calcium in class II has a low and fluctuating oral bioavailability. The research focus is to maximize rosuvastatin calcium solubility in water and dissolution rate by employing and combining various hydrotropic agents to make a solid dispersion using solvent evaporation techniques. Methodology. The experimental study was conducted at Duhok University, College of Pharmacy. Initially, assess rosuvastatin's solubility in hydrotropic agents including urea, mannitol, citric acid, sodium benzoate, and sodium salicylate at concentrations of 10, 20, 30, and 40% w/v. Then, various ratios of 2 and 3 hydrotropic agents were employed to reduce the concentration of each hydrotropic agent. By using a solvent evaporation procedure, solid dispersions were made. The solid dispersion powders underwent evaluation for their percentage drug content, percentage yield, solubility, dissolution test, XRD, DSC, SEM, and FTIR. For statistical analysis, GraphPad InStat Demo software was used to conduct a two-way analysis of variance (ANOVA). In comparison to the pure drug, the solubility of hydrotropic solid dispersions and physical mixtures of rosuvastatin with a combination of hydrotropic agents (sodium salicylate, sodium benzoate, and urea) in the ratio of 13.33 for each increased in all formulations significantly, and all manufactured formulations' drug release ranged from 98.83 to 104.78%, indicating a noticeably higher dissolution rate. The concept of mixed hydrotropic solid dispersion was shown to be an original, risk-free, and cost-effective method for enhancing the bioavailability of drugs that have a low degree of solubility in water.

WaterMaskAnalyzer (WMA)—A User-Friendly Tool to Analyze and Visualize Temporal Dynamics of Inland Water Body Extents

Freely available satellite imagery from the EU Copernicus program can record water surfaces precisely and at high temporal resolution. This paper provides the development status of the open-source demo software “WaterMaskAnalyzer” (WMA) for the determination of water body extents. The application allows simple to use on-demand monitoring of inland water dynamics by the Otsu-thresholding algorithm that automatically classifies water bodies. The tool can answer various hydrological issues related to disaster and water management, nature conservation, or water body monitoring. The first results from investigations of the Sentinel-1 time series in VH polarization show high accuracies with R2 = 0.824 compared to in situ measurements for the Quitzdorf reservoir in Saxony, Germany. Small or indented-shaped water bodies, as well as those with forested riparian zones, such as the Cranzahl (VH: R2 = 0.102 and VV: R2 = 0.251) and Klingenberg reservoirs (VH: R2 = 0.091 and VV: R2 = 0.146), only achieve a low R2 for VV and VH polarization but receive equally low RMSEs of 0.045 km2 (Cranzahl) and 0.077 km2 (Klingenberg). By separating out outliers and using correction factors, fast improvements in the accuracies can be expected. For future improvements, alternate classification methods and diverse new ground-truth data lead us to expect the next big step in development.

Customer Data Management Information System And Web-Based Digital Product Sales In CV. IT Brain Indonesia

Customer Data Management Information System is a program or information system that functions to assist customer and sales data recording activities as well as product activation processes on CV. IT Brain Indonesia. This system is designed to record and input customer data from requests for demo software and customer consultations that come in daily via email marketing and also through whatsapp marketing before making a purchase and activation process. This system is shown for the marketing team on CV. IT Brain Indonesia is still using Microsoft Excel to record these data, which takes a long time to group customer needs on different sheets. In this case the author designed an Information System for Customer Data Management and Web-Based Digital Product Sales at CV. IT Brain Indonesia. The method used is the equivalence method and blackbox testing. The results of this study are in the form of a web-based information system intended for marketing and customer support that can group customer data according to their needs and record sales and product activation processes. This web-based information system was created using the CodeIgniter framework.

HDR-Like Image from Pseudo-Exposure Image Fusion: A Genetic Algorithm Approach

Image distortion during multiple-exposure capture is a common scenario, and most of the existing legacy image content is in the low dynamic range (LDR). For both of these problems, pseudo multiple exposure image generation from a single image is a possible solution. Hence, in this article, we propose a novel method for high dynamic range (HDR)-like image generation by fusing pseudo-multi-exposure images that are produced from only one single image. The proposed pseudo-exposure image generation method is based on intensity mapping function (IMF). First, our system learns the relation between different exposure images with the help of genetic algorithm and generates long and short exposure images. In the second step, we fuse images with different exposures to generate the HDR-like image. Our method outperforms several inverse tone mapping operator (ITMO)-based methods. The simplicity and good performance of the proposed method makes it suitable for mobile phones and other consumer electronics. We also develop a demo software to validate the proposed method.

Ball bouncing down rounded edge stairs: chaotic but tricky

The aim of this study is to investigate the bouncing dynamics of a small elastic ball on a staircase consisting of rounded edge steps, as an example of a dissipative gravitational billiard, and to determine if its dynamics is chaotic. We derive a nonlinear recursion for the coordinates of the collisions, completed with numerical simulations, which indicate that the bouncing dynamics is chaotic, as also follows from elementary considerations regarding the Lyapunov exponent. It is, however, surprising that instead of permanent chaos, only the transient form is present. The main reason behind this is that a collision with the rounded edge of the step enhances the horizontal velocity leading to larger and larger jumps. Not even the introduction of a tangential coefficient of restitution (COR) on the curvature can hinder the flying away of some trajectories. There is also a chance for remaining trapped on a single step in the form of sliding, representing another possibility for escape. Therefore, chaoticity holds for long trajectories before any kind of escape takes place. We also show that an impact-velocity-dependent COR converts the dynamics to permanently chaotic with an underlying fractal attractor. Only elementary mathematics is required for the analytic calculations used, and we offer a set of problems to solve, as well as a user-friendly demo software on our website: https://theorphys.elte.hu/fiztan/stairs to facilitate experimentation and further understanding of this complex phenomenon.

Acquisition of Positional Accuracy with Comparative Analysis of GPS and EGNOS in Urban Constituency

Over the years, precise positioning has been the ultimate goal for Satellite Navigation Systems. The American Global Navigation Satellite System deliver the position and time information intended for various sectors such as vehicle tracking, oil exploration, atmospheric studies, astronomical telescope pointing, airport and harbor security tracking etc. Corresponding technological competitors such as Russian Global Navigation Satellite System (GLONASS), European Union’s GALILEO, China’s BeiDou and Japanese Quasi Zenith Satellite System (QZSS) are few other versions of Satellite based Augmentation Systems. Nevertheless, stern security measures, geographical statistics and stimulation of diverse Electronic Gadgets at indoor/outdoor surroundings make it critical to acquire data about any vicinity with seamless accessibility, accuracy and integrity with satellite links. In this paper, positional accuracy has been tested with analysis of EGNOS, EDAS and simple GPS receiver models at Rome City, Italy. To support results, various real time experiments/tests has been performed with GPS Receiver SIRF Demo software. The test was conducted on-board a car by installing a laptop equipped with GPS Receiver plus supportive SBAS (EGNOS particularly) through three diverse bus routes of locality and outcomes of few tested samples inside the Rome City center are specified to check the availability of desired satellite signals. Subsequently, comparative analysis has been executed between the simple GPS data received and GPS + EGNOS data collected during daytime traffic. The strength of test signals reveals accuracy of EGNOS in open terrain area with less congestion. Furthermore, Asian and European Advanced GPS systems are compared in terms of performance as well as feasibility of authentic, accurate and swift satellite navigation systems.

EVALUATION OF NEW ULTRASOUND METHODS FOR QUANTIFYING THE FLUID IN THE PLEURAL CAVITY

Purpose: to determine accuracy of applying the new quantitative assessment methodology for liquid in the pleural cavity.Materials and methods. The research encompassed 296 patients who underwent surgeries at Federal Center of Cardiovascular Surgery (Penza, Russia) with assisted blood circulation from 2015 to 2017. All the patients had ultrasonic examinations of the pleural cavities that identified the full volume of the liquid component in the pleural cavity, shaped elliptically, with further calculation of the volume with the disk test EDV (Dmax × Lmax × 3.42) – 6.44. The research data was processed with the demo software SPSS Statistics (Statistical Package for the Social Sciences). In order to compare the two methods of assessing the pleural effusionvolume resulting from the pleural puncture, we applied the Bland-Altman comparison method and Pearson correlation coefficient. A difference and a mean difference (M difference) were calculated for each pair of measurements; a standard difference deviation (SD difference) was specified with further verification of the assumption that M difference differed from 0. For this purpose, the sampling mean was compared with the speculative general mean, as tested with Student’s t – distribution.Results. While determining potential connection between the findings of liquidquantity ultrasonic measurement and the actual volume after pleural cavity puncture, the equation of linear regression found a strong linear connection between them with R2 equal to 0.85 p < 0.001). Comparison of the liquid volume by the Bland-Altman method did not find difference in the liquid volume either: all the measurements are within 2SD difference of those parameters, which proves congruity of those methods. When the sampling mean was compared with the speculative general mean, as tested with Student’s t – distribution, no reliable differences (p = 0.52) were identified.Conclusion. Development of this methodology proves to be justified by the fact that there are often cases in the postsurgery cardiosurgical and thoracic practice when the pleural effusion volume should be measured quickly and rather accurately and assessed in dynamics.

Chaotic or just complicated? Ball bouncing down the stairs

The aim of this study is to investigate the bouncing dynamics of a small elastic ball on a rectangular stairway and to determine if its dynamics is chaotic. We derive a simple nonlinear recursion for the coordinates of the collisions from which the type of dynamics cannot be predicted. Numerical simulations indicate that stationary bouncing always sets in asymptotically, and is typically quasi-periodic. The dependence on the coefficient of restitution can be very complicated, yet the dynamics is found to be nonchaotic. Only elementary mathematics is required for the calculations, and we offer a piece of user-friendly demo software on our website, http://crnl.hu/stairway, to facilitate further understanding of this complex phenomenon.

Construction of Course Learning Resources in Combination with Student Projects: Taking the Demo Software for Signals and Systems as an Example

In the era of network, college students are not only the recipients and users of learning resources, but also the processors and creators. Signals and Systems is a fundamental course in communication and electronic information, which, however, is often felt to be abstract. In combination with the Students’ Development project in the Information Technology to Change Teaching and Learning Action Plan in Sun Yat-sen University, we built a demo software for teaching and learning Signals and Systems, which takes advantage of the rich and friendly graphical user interface provided by MATLAB. This software helps to illustrate abstract content of the course in an intuitive way. It can be executed independently of the MATLAB software. Through design and development of the learning resources, the students participating in this project have also deepened their understanding of this course. They have also become familiar with software development in practice, which strengthened their professional competence.

Influence of the Pore Shape and Size Distribution in Hierarchically Porous Electrodes on Energy and Power Densities of Electrochemical Devices

The microporous-mesoporous structure of nanoporous carbon and modified carbon electrodes has a strong influence on the electrochemical characteristics of the devices like supercapacitors, polymer electrolyte fuel cells and electrolysers, gas storage devices, as well as of Li-ion and Na-ion batteries. For that reason, it is crucial to have a good understanding of the porosity and hierarchical structure of carbon and modified carbon materials used [1]. As a standard method, the nitrogen adsorption measurements and various analysis theories are used. These models need the pore shape as an input parameter for detailed calculations, however, often the slit-shaped pore model is postulated without additional verification [1]. This assumption is also very often transferred to the behaviour of carbon based materials in different applications leading to some serious misinterpretations. For cost-effective hydrogen and methane based economy, efficient methods for hydrogen and methane storage are urgently needed. To improve the gas storage properties, the fundamental understanding of the confinement of the gas in microporous-mesoporous materials is inevitable. In particular, the role of confinement dimensions in the mass transfer of the hydrogen, methane as well as oxygen molecules has huge impact on the fuel cell characteristics. Our research focuses on detailed estimation of pore shape and size in various carbide-derived carbons and other carbon materials using various standardized and novel methods, like nitrogen, hydrogen and carbon dioxide adsorption measurements. All carbon samples were dried under vacuum at 350 оC at least for 24 h prior to each measurement. N2 sorption analysis at -196 оC and CO2 sorption analysis at 0 оC were carried out on an ASAP 2020 instrument (Micromeritics, USA). The experimental data were treated with classical models (BET and t-plot) as well as different NLDFT models available through 3Flex and SAIEUS (Micromeritics, USA) software [2,3]. The results for pore size distribution (PSD) calculations from N2 isotherms using a slit shape pore model and model “Carbon-N2, 2D-NLDFT Heterogeneous Surface” [4,5] (demo software SAIEUS, Micromeritics, USA) will be reported. The pore size distribution data calculated from CO2 sorption isotherms using a slit shaped pore model and model “CO2-DFT Model” (software 3Flex, Micromeritics, USA) will be discussed. Although, the pore size distributions calculated from CO2 have high level of roughness and several model artefacts (e.g. around 0.7 nm) [6,7], the results generally support the findings from N2 sorption isotherms. Raman spectra analysis, small-angle neutrons scattering and small angle X-ray scattering combined with the FIB-SEM and high resolution TEM data have been used. The results obtained are compared to the behaviour of these materials in different energy storage/conversion related devices like supercapacitors [8,9] and polymer electrolyte fuel cells 10]. As a result, the importance of hierarchical porous structure and pore shape along with pore size (pore size distribution) of used carbon materials in the energy technology applications will be addressed and demonstrated. The hydrogen sorption parameters will be compared with the methane sorption characteristics as well as correlated with PEM fuel cell and supercapacitor characteristics. Acknowledgments Authors would like to thank HZB and PSI for the allocation of neutron radiation beamtime on instruments V16 and FOCUS, respectively. The Estonian Ministry of Education and Research (institutional research project IUT20-13, personal research grant PUT55) and European Regional Development Fund (The Centres of Excellence TK117 and, TK141) for financial support.

Kinetics of cytochrome P450 enzymes for metabolism of sodium tanshinone IIA sulfonate in vitro.

BackgroundSodium tanshinone IIA sulfonate (STS) is a water-soluble derivative of tanshinone IIA for treating cardiovascular disorders. The roles of cytochrome P450 enzymes (CYPs) in the metabolism of STS have remained unclear. This study aims to screen the main CYPs for metabolism of STS and study their interactions in vitro.MethodsSeven major CYPs were screened for metabolism of STS by human liver microsomes (HLMs) or recombinant CYP isoforms. Phenacetin (CYP1A2), coumarin (CYP2A6), tolbutamide (CYP2C9), metoprolol (CYP2D6), chlorzoxazone (CYP2E1), S-mephenytoin (CYP2C19), and midazolam (CYP3A4) were used as probe substrates to determine the potential of STS in affecting CYP-mediated phase I metabolism in humans. Enzyme kinetic studies were performed to investigate the modes of inhibition of the enzyme–substrate interactions by GraphPad Prism Enzyme Kinetic 5 Demo software.ResultsSodium tanshinone IIA sulfonate inhibited the activity of CYP3A4 in a dose–dependent manner by the HLMs and CYP3A4 isoform. The Km and Vmax values of STS were 54.8 ± 14.6 µM and 0.9 ± 0.1 nmol/mg protein/min, respectively, for the HLMs and 7.5 ± 1.4 µM and 6.8 ± 0.3 nmol/nmol P450/min, respectively, for CYP3A4. CYP1A2, CYP2A6, CYP2C9, CYP2D6, CYP2E1, and CYP2C19 showed minimal or no effects on the metabolism of STS.ConclusionThis in vitro study showed that STS mainly inhibited the activities of CYP3A4.Electronic supplementary materialThe online version of this article (doi:10.1186/s13020-016-0083-z) contains supplementary material, which is available to authorized users.

A cross-platform solution for light field based 3D telemedicine

Current telehealth services are dominated by conventional 2D video conferencing systems, which are limited in their capabilities in providing a satisfactory communication experience due to the lack of realism. The “immersiveness” provided by 3D technologies has the potential to promote telehealth services to a wider range of applications. However, conventional stereoscopic 3D technologies are deficient in many aspects, including low resolution and the requirement for complicated multi-camera setup and calibration, and special glasses. The advent of light field (LF) photography enables us to record light rays in a single shot and provide glasses-free 3D display with continuous motion parallax in a wide viewing zone, which is ideally suited for 3D telehealth applications. As far as our literature review suggests, there have been no reports of 3D telemedicine systems using LF technology. In this paper, we propose a cross-platform solution for a LF-based 3D telemedicine system. Firstly, a novel system architecture based on LF technology is established, which is able to capture the LF of a patient, and provide an immersive 3D display at the doctor site. For 3D modeling, we further propose an algorithm which is able to convert the captured LF to a 3D model with a high level of detail. For the software implementation on different platforms (i.e., desktop, web-based and mobile phone platforms), a cross-platform solution is proposed. Demo applications have been developed for 2D/3D video conferencing, 3D model display and edit, blood pressure and heart rate monitoring, and patient data viewing functions. The demo software can be extended to multi-discipline telehealth applications, such as tele-dentistry, tele-wound and tele-psychiatry. The proposed 3D telemedicine solution has the potential to revolutionize next-generation telemedicine technologies by providing a high quality immersive tele-consultation experience.

Design and Experimental Approach to the Construction of a Human Signal-Molecule-Profiling Database

The human signal-molecule-profiling database (HSMPD) is designed as a prospective medical database for translational bioinformatics (TBI). To explore the feasibility of low-cost database construction, we studied the roadmap of HSMPD. A HSMPD-oriented tool, called “signal-molecule-profiling (SMP) chip” was developed for data acquisition, which can be employed in the routine blood tests in hospitals; the results will be stored in the HSMPD system automatically. HSMPD system can provide data services for the TBI community, which generates a stable income to support the data acquisition. The small-scale experimental test was performed in the hospital to verify SMP chips and the demo HSMPD software. One hundred and eighty nine complete SMP records were collected, and the demo HSMPD system was also evaluated in the survey study on patients and doctors. The function of SMP chip was verified, whereas the demo HSMPD software needed to be improved. The survey study showed that patients would only accept free tests of SMP chips when they originally needed blood examinations. The study indicated that the construction of HSMPD relies on the self-motivated cooperation of the TBI community and the traditional healthcare system. The proposed roadmap potentially provides an executable solution to build the HSMPD without high costs.

Volumetric estimation of an intensive apple orchard with GIS

Remote sensing instruments and methods have become widespread in all segments of agriculture and horticulture. Among the innovative development of remote sensing instruments, the 3D laser scanner is one of the newest technique, which overtop in the spatial data collection. Terrestrial laser scanning is an appropriate tool for identifying such biophysical parameters like the structure of trees and branches, growth of volume. Determination of these parameters are time consuming and complicated with traditional methods. The examination was carried out in the Study and Regional Research Farm of the University of Debrecen near Pallag. We used Leica ScanStation C10 terrestrial laser scanner to estimate volumetric properties of the intensive apple orchard. Two rows of the study area were surveyed, where the height and stem diameter of apple trees were measured with Geomagic Studio 12 GIS Demo Software. Based on the built-in algorithms, the volume of each tree were defined by the software. The measured and calculated data was correlated, and middle correlations were detected. Estimated volume results could be useful for further investigation such as CO2 fi xing, which is an important factor for ecological service of the plantation.

Hardware-in-the-loop of Simulation for a Hydraulic Antilock Brake System

Hardware-In-the-Loop (HIL) of simulation policy is used as a rapid and economical tool for developing automotive systems effectively and for dangerous situations tests such as extreme road conditions or high travelling speeds. A method for building a HIL of simulation a hydraulic Antilock Braking System (ABS) based on MATLAB/Simulink is presented in this paper. The system is implemented for research purposes as well as for the application in educational process. It can help the user heightening the efficiency when developing the electronic device. Also, the system can be used as teaching demo software. Experiment tests of HIL scheme were carried to ensure the feasibility and effectiveness of the system.

A Study on Satellite-Ground Link of the Satellite Receiving Station

The analysis of the linkage between ground station and satellite is the premise of scheduling the ground data receiving task, which includes the time window calculation, satellite relative antenna's azimuth, elevation angle calculation. This article studies the linkage between ground station and satellite. Meanwhile, with the aid of the world wind platform, it develops the demo software of the 3-dimensional modeling to study the simulation to link the star, and it can calculate time window, the azimuth angle between the land and elevation angle. It proves that software-testing results agree with STK software calculation results. Thus, the software is reliable to provide the scientific basis for the selection of ground stations' location and nets planning.

XQTL workbench: a scalable web environment for multi-level QTL analysis

Summary: xQTL workbench is a scalable web platform for the mapping of quantitative trait loci (QTLs) at multiple levels: for example gene expression (eQTL), protein abundance (pQTL), metabolite abundance (mQTL) and phenotype (phQTL) data. Popular QTL mapping methods for model organism and human populations are accessible via the web user interface. Large calculations scale easily on to multi-core computers, clusters and Cloud. All data involved can be uploaded and queried online: markers, genotypes, microarrays, NGS, LC-MS, GC-MS, NMR, etc. When new data types come available, xQTL workbench is quickly customized using the Molgenis software generator.Availability: xQTL workbench runs on all common platforms, including Linux, Mac OS X and Windows. An online demo system, installation guide, tutorials, software and source code are available under the LGPL3 license from http://www.xqtl.org.Contact: m.a.swertz@rug.nl