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1

Clark, Andrew J. "Document metadata, tracking and tracing." Network Security 2007, no. 7 (2007): 4–7. http://dx.doi.org/10.1016/s1353-4858(07)70062-4.

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Adiwinoto, Ivan Taufan. "DESAIN SISTEM INFORMASI UNTUK TRACKING DAN TRACING PADA WAREHOUSE DENGAN MENGGUNAKAN TEKNOLOGI QR CODE." J@ti Undip : Jurnal Teknik Industri 16, no. 2 (2021): 102–8. http://dx.doi.org/10.14710/jati.16.2.102-108.

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Industrial Revolution 4.0 menyebabkan pelaku supply chain untuk dapat terus beradaptasi dengan teknologi agar tetap kompetitif. Salah satu cara yang dapat digunakan bagi pelaku supply chain adalah dengan menerapkan teknologi IoT untuk membantu memudahkan pelaku supply chain dalam melakukan proses tracking dan tracing inventory. Dengan adanya IoT ini, seluruh pergerakan mulai dari proses penerimaan inventory sampai proses pengeluaran inventory dapat tercatat secara sistem online. Proses tracking dan tracing ini bertujuan untuk membantu mengetahui posisi dari inventory pada warehouse dan memastikan jika inventory dikeluarkan mengikuti aturan FIFO. Desain sistem berbasis IoT ini dibuat dengan menggunakan metode pendekatan System Development Live Cycle (SDLC) sampai pada tahapan desain sistem. Hasil akhir dari studi ini adalah desain sistem informasi yang menggunakan teknologi IoT dan QR code untuk proses tracking dan tracing inventory di dalam warehouse. Dengan adanya sistem informasi ini, jumlah inventory yang kadaluarsa dapat menurun. Abstract[Information System Design for Tracking and Tracing Using QR Code in Warehouse] Industrial Revolution 4.0 causes supply chain player to continue adapting technology to stay competitive. One way for supply chain player is by implementing Internet of Things (IoT) for tracking dan tracing inventory in supply chain process. With IoT, all inventory movement and activity from inbound area to outbound area can be recorded by system. This tracking and tracing process aim to help determine the position of the inventory in warehouse and ensure the issued inventory is following FIFO rules. This IoT-based system created using System Development Live Cycle (SDLC) approach up to system design step. The result of this study is an information system design that uses IoT and QR code technology for tracking and tracing inventory in warehouse. With this information system, the amount of expired inventory can decrease.Keyword: supply chain; tracing; tracking; QR code
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Sarumi, (PhD), Jerry Abayomi, and Ibraheem Abdul-Raheem. "COVID-19 CONTACT TRACING AND TRACKING." Advances in Multidisciplinary and scientific Research Journal Publication 2, no. 1 (2022): 1–16. http://dx.doi.org/10.22624/aims-22445.

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The recent outbreak of COVID-19 has taken the world by surprise, forcing lockdowns and straining public health care systems. COVID-19 is known to be a highly infectious virus, and infected individuals do not initially exhibit symptoms, while some remain asymptomatic. Thus, a non-negligible fraction of the population can, at any given time, be a hidden source of transmissions. In response, many governments have shown great interest in smartphone contact tracing apps that help automate the difficult task of tracing all recent contacts of newly identified infected individuals. However, tracing apps have generated much discussion around their key attributes, including system architecture, data management, privacy, security, proximity estimation, and attack vulnerability. The use of Covid-19 contact tracing applications is close to be unheard of in Nigeria. We are far behind in leveraging on mobile app technology to combat the continued spread of this deadly virus. This project proposes a mobile app solution that provides adequate information to the contacted victims and as well warns the non-contacted of the dangers of leaving home without their kits. KEYWORDS: Covid-19, covid-19 contact tracing, contact tracing apps, coronavirus, mobile app, covid-19 alert.
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Winata, Wilson, Sharyanto Sharyanto, and Bernadus Gunawan Sudarsono. "Design and manufacture of tracking & tracing information system for tractor units using qr code technology at PT. Panca Traktor Indonesia." Journal of Engineering, Technology and Computing (JETCom) 3, no. 1 (2024): 62–69. https://doi.org/10.63893/jetcom.v3i1.213.

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PT Panca Traktor Indonesia is a company that focuses on sales and service. Currently, PT Panca Traktor Indonesia still does not have a computerized system related to tracking and tracing tractor units, so customers do not know when the goods are delivered and where the goods are. Delivery is only via short message applications such as whatsapp and via telephone. In addition, there is no report on tracking and tracing related to shipments so that there is no data record. Therefore, to handle these problems, a tracking & tracing application using web-based QR code technology was created, which was designed and modeled using Unifield Modeling Langueage (UML), PHP as a programming language and MySQL as a database. With this application, it is expected to facilitate companies and customers in tracking and tracing tractor units.
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5

Buijsman, G. "TRACKING & TRACING OF GLASSHOUSE VEGETABLES." Acta Horticulturae, no. 611 (June 2003): 31. http://dx.doi.org/10.17660/actahortic.2003.611.6.

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6

Stefansson, Gunnar, and Bernhard Tilanus. "Tracking and tracing: principles and practice." International Journal of Technology Management 20, no. 3/4 (2000): 252. http://dx.doi.org/10.1504/ijtm.2000.002873.

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7

Stefansson, Gunnar, and Bernhard Tilanus. "Tracking and tracing: principles and practice." International Journal of Services Technology and Management 2, no. 3/4 (2001): 187. http://dx.doi.org/10.1504/ijstm.2001.001599.

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8

Franco-Watkins, Ana M., and Joseph G. Johnson. "Applying the decision moving window to risky choice: Comparison of eye-tracking and mouse-tracing methods." Judgment and Decision Making 6, no. 8 (2011): 740–49. http://dx.doi.org/10.1017/s1930297500004174.

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AbstractCurrently, a disparity exists between the process-level models decision researchers use to describe and predict decision behavior and the methods implemented and metrics collected to test these models. The current work seeks to remedy this disparity by combining the advantages of work in decision research (mouse-tracing paradigms with contingent information display) and cognitive psychology (eye-tracking paradigms from reading and scene perception). In particular, we introduce a new decision moving-window paradigm that presents stimulus information contingent on eye fixations. We provide data from the first application of this method to risky decision making, and show how it compares to basic eye-tracking and mouse-tracing methods. We also enumerate the practical, theoretical, and analytic advantages this method offers above and beyond both mouse-tracing with occlusion and basic eye tracking of information without occlusion. We include the use of new metrics that offer more precision than those typically calculated on mouse-tracing data as well as those not possible or feasible within the mouse-tracing paradigm.
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9

Li, Zhi, Guo Liu, Layne Liu, Xinjun Lai, and Gangyan Xu. "IoT-based tracking and tracing platform for prepackaged food supply chain." Industrial Management & Data Systems 117, no. 9 (2017): 1906–16. http://dx.doi.org/10.1108/imds-11-2016-0489.

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Purpose The purpose of this paper is to propose an effective and economical management platform to realize real-time tracking and tracing for prepackaged food supply chain based on Internet of Things (IoT) technologies, and finally ensure a benign and safe food consumption environment. Design/methodology/approach Following service-oriented architecture, a flexible layered architecture of tracking and tracing platform for prepackaged food is developed. Besides, to reduce the implementation cost while realizing fine-grained tracking and tracing, an integrated solution of using both the QR code and radio-frequency identification (RFID) tag is proposed. Furthermore, Extensible Markup Language (XML) is adopted to facilitate the information sharing among applications and stakeholders. Findings The validity of the platform has been evaluated through a case study. First, the proposed platform is proved highly effective on realizing prepackaged food tracking and tracing throughout its supply chain, and can benefit all the stakeholders involved. Second, the integration of the QR code and RFID technologies is proved to be economical and could well ensure the real-time data collection. Third, the XML-based method is efficient to realize information sharing during the whole process. Originality/value The contributions of this paper lie in three aspects. First, the technical architecture of IoT-based tracking and tracing platform is developed. It could realize fine-grained tracking and tracing and could be flexible to adapt in many other areas. Second, the solution of integrating the QR code and RFID technologies is proposed, which could greatly decrease the cost of adopting the platform. Third, this platform enables the information sharing among all the involved stakeholders, which will further facilitate their cooperation on guaranteeing the quality and safety of prepackaged food.
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10

Fulford, Tim. "Romantic Medicine in the Time of COVID." Romanticism on the Net, no. 74-75 (2020): 1–18. https://doi.org/10.7202/1117978ar.

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This article discusses the pioneering medical activities of Thomas Beddoes, in two contexts that the Covid epidemic has made topical: oxygen treatment and its efficacy; epidemiology, including tracking and tracing infection. I ask what we, in a time of pandemic, can learn from Beddoes and the advances he made in treating respiratory diseases and in tracking and tracing epidemics.
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11

Kift, Paula. "Not Tracking: The Antipolitics of Contact-Tracing Applications." Public Culture 33, no. 2 (2021): 137–47. http://dx.doi.org/10.1215/08992363-8917136.

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Abstract In response to the COVID-19 pandemic, governments around the world turned to contact-tracing applications in an attempt to balance the reopening of the economy with keeping the virus at bay. But as this article demonstrates, contact-tracing applications not only fail to protect the most vulnerable among us; they also shift responsibility for failing to prepare public-health systems for a pandemic away from governments and onto the individual user struggling to contain its worst effects. In the process, contact-tracing applications change the definition of failure. They also reinforce existing inequalities. Technology in this case not only has politics; it prevents politics. By focusing on contact-tracing applications as an example, the article points to some of the deeper perils of accepting app-based solutions to structural problems.
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Tsai, Cheng-Mu. "Evaluation of Geometrical Modulation Transfer Function in Optical Lens System." Mathematical Problems in Engineering 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/863201.

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This paper presents ray tracing algorithms to evaluate the geometrical modulation transfer function (GMTF) of optical lens system. There are two kinds of ray tracings methods that can be applied to help simulate the point spread function (PSF) in the image plane, for example, paraxial optics and real ray tracings. The paraxial optics ray tracing is used to calculate the first-order properties such as the effective focal length (EFL) and the entrance pupil position through less cost of computation. However, the PSF could have a large tolerance by only using paraxial optics ray tracing for simulation. Some formulas for real ray tracing are applied in the sagittal and tangential line spread function (LSF). The algorithms are developed to demonstrate the simulation of LSF. Finally, the GMTF is evaluated after the fast Fourier transform (FFT) of the LSF.
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Vaidya, Aakansha, Dipali Nikam, and Mr Ramdas Jare. "Real Time Tracking and Tracing of Shipment." IJARCCE 8, no. 1 (2019): 11–14. http://dx.doi.org/10.17148/ijarcce.2019.8102.

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14

Ross, Hana. "Tracking and tracing tobacco products in Kenya." Preventive Medicine 105 (December 2017): S15—S18. http://dx.doi.org/10.1016/j.ypmed.2017.04.025.

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15

van Giesen, Roxanne I., Arnout R. H. Fischer, Heleen van Dijk, and Hans C. M. van Trijp. "Tracing Attitude Expressions: An Eye-Tracking Study." Journal of Behavioral Decision Making 29, no. 2-3 (2015): 232–44. http://dx.doi.org/10.1002/bdm.1920.

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16

M. Allam, Ali. "A Privacy-Aware Tracking and Tracing System." International journal of Computer Networks & Communications 15, no. 5 (2023): 113–26. http://dx.doi.org/10.5121/ijcnc.2023.15507.

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The ability to track and trace assets in the supply chain is becoming increasingly important. In addition to asset tracking, the technologies used provide new opportunities for collecting and analyzing employee position and biometric data. As a result, these technologies can be used to monitor performance or track worker behavior, resulting in additional risks and stress for employees. Furthermore, contact tracing systems used to contain the COVID-19 outbreak have made positive patients' privacy public, resulting in violations of users' rights and even endangering their lives. To resolve this situation, a verifiable attributebased encryption (ABE) scheme based on homomorphic encryption and zero-knowledge identification (ZKI) is proposed, with ZKI providing anonymity for data owners to resist tracking attacks and homomorphic encryption used to solve the problem of privacy leakage from location inquiries returned from a semi-honest server. Finally, theoretical security analysis and formal security verification show that our scheme is secure against the chosen plaintext attack (CPA) and other attacks. Besides that, our novel scheme is efficient enough in terms of user-side computation overhead for practical applications.
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Kwan, Tsz Ho. "Enforcement of the Use of Digital Contact-Tracing Apps in a Common Law Jurisdiction." Healthcare 10, no. 9 (2022): 1613. http://dx.doi.org/10.3390/healthcare10091613.

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Digital contact-tracing systems have been widely implemented worldwide with different system designs and implementation policies for the purpose of tracking potentially exposed individuals. The use of a digital contact-tracing app in Hong Kong has been mandated for visiting certain premises by legislations. This paper reviewed the regulations promulgated specifically for the prevention and control of COVID-19 and identified those associated with the digital contact-tracing system. A comprehensive search in newspaper databases was performed to explore the enforcement of the mandated use of the digital contact-tracing app. The three facets of regulations in relation to digital contact tracing were examined: duty to disclose information, requirements and directions to businesses, and compulsory testing. The use of digital contact-tracing data for non-public health purposes was also reported. Our analyses showed that prosecution of non-use or the use of fraudulent digital contact-tracing apps was not limited to COVID-19-specific legislations. The flexible approach ensured the enforcement of the use of the digital contact-tracing app, but the judiciary’s test must be passed in future cases.
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Tariq Niamat, Dr. Waqar Azeem, Saira Imtiaz, Sajida Nawaz, Kainat Ilyas, and M. Nouman. "ITSM APPLICATIONS WITHIN SELECTED LOGISTICS AND TRANSPORT." Pakistan Journal of Scientific Research 4, no. 1 (2024): 21–26. https://doi.org/10.57041/pjosr.v4i1.1111.

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This article manages data ITSM, with its procedures well-defined by ITIL structure, which is the data of ITSM library collection. ITSM is a customer-first approach to providing IT services, focusing on delivering IT services to customers within the same business, rather than a static system. The consequences of research depend on the proposition of data ITSM model concentrated on the choose logistics and transport administration (tracking and tracing service). Article shows the foundation of the tracking and tracing service and its lifecycle (administration technique, administration configuration, administration change, administration activity and ceaseless help improvement). The article defines connections among capacities and procedures of the tracking and tracing support. The proposition of the model is predictable with standardized procedures. The accuracy of the model is checked by contrasting its consistency and standard ISO/IEC20000.
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Shaman, Jeffrey, R. M. Samelson, and Eli Tziperman. "Complex Wavenumber Rossby Wave Ray Tracing." Journal of the Atmospheric Sciences 69, no. 7 (2012): 2112–33. http://dx.doi.org/10.1175/jas-d-11-0193.1.

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Abstract This paper presents a methodology for performing complex wavenumber ray tracing in which both wave trajectory and amplitude are calculated. This ray-tracing framework is first derived using a scaling in which the imaginary wavenumber component is assumed to be much smaller than the real wavenumber component. The approach, based on perturbation methods, is strictly valid when this scaling condition is met. The framework is then used to trace stationary barotropic Rossby waves in a number of settings. First, ray-traced Rossby wave amplitude is validated in a simple, idealized system for which exact solutions can be calculated. Complex wavenumber ray tracing is then applied to both solid-body rotation on a sphere and observed climatological upper-tropospheric fields. These ray-tracing solutions are compared with similarly forced solutions of the linearized barotropic vorticity equation (LBVE). Both real and complex wavenumber ray tracings follow trajectories matched by LBVE solutions. Complex wavenumber ray tracings on observed two-dimensional zonally asymmetric atmospheric fields are found to follow trajectories distinct from real wavenumber Rossby waves. For example, complex wavenumber ray tracings initiated over the eastern equatorial Pacific Ocean during boreal summer propagate northward and northeastward into the subtropics over the Atlantic Ocean, as well as southeastward into the Southern Hemisphere. Similarly initiated real wavenumber ray tracings remain within the deep tropics and propagate westward. These complex wavenumber Rossby wave trajectories and ray amplitudes are generally consistent with LBVE solutions, which indicates this methodology can identify Rossby wave effects distinct from traditional real wavenumber tracings.
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Weterings, veronica, Heidi Kievits, Miranda van Rijen, and Jan kluytmans. "865. Methicillin-resistant Staphylococcus aureus (MRSA) prevalence among healthcare workers (HCW) in contact tracings in a Dutch teaching hospital, 2010-2018." Open Forum Infectious Diseases 7, Supplement_1 (2020): S471. http://dx.doi.org/10.1093/ofid/ofaa439.1054.

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Abstract Background In The Netherlands, the national guidelines on MRSA prevention and control advocate screening of HCW after unprotected exposure to MRSA carriers. Although this strategy at large is successful, contact tracing of staff is a time consuming and costly component. We evaluated our contact tracing policy for HCW over the years 2010 – 2018. MRSA prevalence among samples in contact tracing Methods A retrospective, observational study was performed in a Dutch teaching hospital. All HCW who had unprotected contact with an MRSA carrier were included in contact tracing. When there had been a long period of unprotected admission prior to an MRSA finding, or when the index case was a HCW, than the entire (nursing) team was tested. All samples of HCWs who were tested for MRSA carriage as part of contact tracing from 2010 until 2018 were included. A pooled nose, throat and perineum swab was collected using the eSwab medium (Copan) and inoculated on chromID MRSA agar plates (bioMérieux) after enrichment in a broth. Results In total, we included 8,849 samples (range: 677 – 1,448 samples per year) from a total of 287 contact tracings (range: 26 – 55 contact tracings per year). Thirty two HCWs were colonized with MRSA (0.36%; 95%CI 0.26 – 0.51). None of them developed a clinical infection. Eight HCWs (0.10%; 95%CI 0.05% – 0.19%) were colonized with the same MLVA type as the index case, and were detected in 6/287 contact tracings (2%). In 4/8 of these cases, a positive HCW was the index for undertaking contact tracing. In 3/8 cases it was clear that the HCW who was identified in the contact tracing was the source of the outbreak and was the cause of invasive MRSA infections in patients. Notably, a different MLVA type as the index case was found in 24 HCWs (0,27%; 95%CI 0,18 – 0,40) of which 7/24 HCW (29,2%) were intermittent carriers. Conclusion This study revealed a sustained low MRSA prevalence among samples in contact tracing of healthcare workers, over nine years. Furthermore, it shows that when MRSA contact tracing is performed according to the national guideline only 1 out 1000 samples results in a secondary case. This is similar to the population carriage rate of MRSA in The Netherlands. More frequently, an unrelated strain is found. These findings raise question marks regarding the efficacy of the current strategy to perform contact tracing after unprotected exposure. Disclosures All Authors: No reported disclosures
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Sun, Yong, and Jun Wei Zhao. "An Improved of Extended Kalman Filtering Method on Tracking Accuracy of Bistatic Sonar System." Applied Mechanics and Materials 596 (July 2014): 494–97. http://dx.doi.org/10.4028/www.scientific.net/amm.596.494.

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The Extended Kalman Filter methods were widely used in the estimation of tracing situation in military fields. In this paper, we proposed a method of using multiple iteration of the observation and covariance matrix in the measuring equations during the tracking process in bistatic sonar system. Therefore the iterating extended kalman filtering (IEKF) algorithm was emerged at this situation. The simulation results show that the proposed tracing algorithm exhibits higher accuracy compared with the EKF algorithm. This new method can take full application of the measured information to improved the tracing accuracy in the whole controlled area. Keywords: bistatic sonar; tracing accuracy; IEKF algorithm; target moving analysis
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Nease, Brian, Joel Corser, and Paul Burke. "GPU-Accelerated Ray Tracing for Visualizing Monte Carlo Models." EPJ Web of Conferences 302 (2024): 11001. http://dx.doi.org/10.1051/epjconf/202430211001.

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Monte Carlo codes are naturally suited to act as computational kernels for ray tracing visualization applications because of the similarities between the ray tracing algorithm and the Monte Carlo neutral particle tracking algorithm. This paper presents a simplified ray tracing algorithm suitable for engineering applications, as well as optimizations to make the algorithm more amenable to computation on a GPU. This algorithm was implemented in a GPU-based ray tracing code called MantaRay. This code has been used as a backend kernel in MCVIZ, a real-time, interactive 3D visualization tool for MC21 models. MCVIZ+MantaRay allows for interactive rendering of extremely large models at 1024x768 resolution at framerates of 15 fps and greater.
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Weir, Lindsay, Jennifer Ormsby, Carin Bennett-Rizzo, Jonathan Bickel, Colleen Dansereau, and Matthew Horman. "COVID-19 Contact Tracing in a Pediatric Hospital: Maximizing Effectiveness Through Specialized Team and Automated Tools." Antimicrobial Stewardship & Healthcare Epidemiology 1, S1 (2021): s46—s47. http://dx.doi.org/10.1017/ash.2021.86.

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Background: In their interim infection prevention and control recommendations for the coronavirus disease 2019 (COVID-19) pandemic, the Centers for Disease Control and Prevention (CDC) recommend that healthcare facilities have a plan to identify, investigate, and trace potential COVID-19 exposures. In an academic hospital, the scale of such tracing is substantial, given that medically complex patients can have dozens of staff contacts across multiple locations during an encounter. Furthermore, the family-centered care model employed by pediatric institutions precludes visitor exclusion, further complicating tracing efforts. Despite this complexity, tracing accuracy and timeliness is of paramount importance for exposure management. To address these challenges, our institution developed a contact-tracing system that balanced expert participation with automated tracing tools. Methods: Our institution’s contact-tracing initiative includes positive patients, parents and/or visitors, and staff for the enterprise’s inpatient, procedural, and ambulatory locations at the main campus and 4 satellites. The team consists of 11 staff and is overseen by an infection preventionist. For positive patients and parents and/or visitors, potentially exposed staff are automatically identified via a report that extracts staff details for all encounters occurring during the patient’s infectious period. For positive staff, trained contact tracers call the staff member to determine whether mask and distancing practices could result in others meeting CDC exposure criteria. Any potentially exposed healthcare workers (HCWs) receive an e-mail that details exposure criteria and provides follow-up instructions. These HCWs are also entered into a secure, centralized tracking database that (1) allows infection prevention and occupational health staff to query and identify all epidemiologic links between traced patients, parents and/or visitors, and staff, and (2) initiates staff enrollment in a twice-daily symptom tracking system administered via REDCap. Potentially exposed patients and parents and/or visitors are contacted directly by a hospital representative. The contact tracing team, infection prevention staff, and occupational health staff meet daily to review positive staff cases in the last 24 hours. Results: To date, the team has traced ~1,300 patients, 15 parents and/or visitors, and 700 staff. Since the start of the pandemic, tracing and contact notification for all positive cases has been conducted within 24 hours. Through these proactive tracing efforts and other institutional infection prevention initiatives, the institution only experienced 1 staff cluster (N < 15) and <5 hospital-onset patient cases. Conclusions: Equipping a trained group of contact tracers with automated tracking tools can afford infection prevention and occupational health departments the ability to achieve and sustain timely and accurate contact tracing initiatives throughout a large-scale pandemic response.Funding: NoDisclosures: None
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Li, Jian, Qi Gu, Ying Chen, Guiqing Sun, and Haocai Huang. "A Combined Ray Tracing Method for Improving the Precision of the USBL Positioning System in Smart Ocean." Sensors 18, no. 10 (2018): 3586. http://dx.doi.org/10.3390/s18103586.

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The ultra-short baseline positioning system (USBL) has the advantages of flexible application and easy installation, and it plays an extremely important role in the underwater positioning and communication. The error of the USBL in underwater positioning is mainly caused by a ranging error due to ray tracing, a phase difference error of the USBL, and acoustic noise in the underwater communication. Most of these errors are related to the changes in the sound speed during its propagation through the ocean. Therefore, when using the USBL for underwater detection, it is necessary to correct the sound speed profile in the detection area and optimize the ray tracing. Taking into account the actual conditions, this paper aims at correcting the model of underwater sound speed propagation and improving the tracking method of sound lines when the marine environment in the shallow sea area changes. This paper proposes a combined ray tracing method that can adaptively determine whether to use the constant sound speed ray tracing method or the equal gradient ray tracing method. The theoretical analysis and simulation results show that the proposed method can effectively reduce the error of slant distance in USBL compared with the traditional acoustic tracking method and the constant sound speed ray tracing method. The proposed sound ray correction algorithm solves the contradiction between the number of iterations and the reduction of positioning error and has engineering application value.
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Lai, Yue Shen, Meng Shi, Jun Wei Tian, and Gang Cheng. "Achieving the Measurement of Tool Diameter by the Boundary Tracing Algorithm Based on Model." Advanced Materials Research 411 (November 2011): 469–73. http://dx.doi.org/10.4028/www.scientific.net/amr.411.469.

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Boundary tracing method is an important preprocessing instrument for image recognition and image measurement, but the traditional boundary tracing method exits a conflict between the veracity and the speed. In response to these problems, we propose the boundary tracking algorithm based on the model, and then obtain the tool diameter. Experiments show that the boundary tracking algorithm can achieve a good boundary track. Compared two algorithms of diameter measurements, we obtain that the least square method runs shorter, and more efficient.
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Krüger, Nicolai, Alina Behne, Jan Heinrich Beinke, Agnis Stibe, and Frank Teuteberg. "Exploring User Acceptance Determinants of COVID-19-Tracing Apps to Manage the Pandemic." International Journal of Technology and Human Interaction 18, no. 1 (2022): 1–27. http://dx.doi.org/10.4018/ijthi.293197.

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Tracing infectious individuals and clusters is a major tactic for mitigating the pandemic. This paper explores the factors impacting the intentions and actual use of COVID-19 contact tracing apps based on a technology acceptance model. A partial least squares structural equation model has been applied to understand determinants for the usage of tracing apps based on a large sample (N = 2,398) from more than 30 countries (mainly from Germany and USA). Further, the paper presents a classification of COVID-19 apps and users. Through that, the study provides insights for technologists and designers of tracing apps as well as policy makers and practitioners to work toward enhancing user acceptance. Moreover, the results are abstracted to general social participation with apps in order to manage future strategies. The theoretical contribution of this work includes the results of our acceptance model and a classification of COVID-19 tracing and tracking apps.
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Singh, Shikha, Preeti Singh, Chiranjeev Singh, Radhika Agarwal, and Pulkit Sharma. "A Comparative Study of Three Different Methods for Cephalometric Analysis." Bharati Vidyapeeth Journal of Dentistry and Allied Sciences 2, no. 1 (2025): 23–27. https://doi.org/10.4103/bvjd.bvjd_22_25.

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Aim: The aim of the research was to compare and assess the accuracy and reliability of fully automatic (artificial intelligence [AI]), conventional, and digital cephalometric analysis. Materials and Methods: Fifty-two lateral cephalometric radiographs of patients aged 15–30 years with skeletal class I malocclusion were analyzed using three methods, i.e., manual tracing, digital tracing with NemoCeph NX 2009 software, and fully automatic tracing using Ceph.io software. Out of which, manual tracings were repeated after 4 weeks to assess intraexaminer reliability. Results: Almost all the variable linear parameters have showed statistically significant difference between the two different comparisons except for lower anterior facial height who showed statistically nonsignificant difference. The fully automatic cephalometric analysis demonstrated higher accuracy and reliability in landmark identification and measurements compared to the conventional digital and manual tracing methods and the digital tracing method, while more accurate than manual tracing. Conclusion: More studies need to be conducted with regard to AI methods as it will bring significant changes in diagnosis, measurement procedures, and formulating a definitive proper treatment planning.
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Marres, Geertruid M. H., Luc Taal, Michael Bemelman, Jos Bouman, and Luke P. H. Leenen. "Online Victim Tracking and Tracing System (ViTTS) for Major Incident Casualties." Prehospital and Disaster Medicine 28, no. 5 (2013): 445–53. http://dx.doi.org/10.1017/s1049023x13003567.

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AbstractIntroductionDealing with major incidents requires an immediate and coordinated response by multiple organizations. Communicating and coordinating over multiple geographical locations and organizations is a complex process. One of the greatest challenges is patient tracking and tracing. Often, data about the number of victims, their condition, location and transport is lacking. This hinders an effective response and causes public distress. To address this problem, a Victim Tracing and Tracking system (ViTTS) was developed.MethodsAn online ViTTS was developed based on a wireless network with routers on ambulances, and direct online registration of victims and their triage data through barcode injury cards. The system was tested for feasibility and usability during disaster drills.ResultsThe formation of a local radio network of hotspots with mobile routers and connection over General Packet Radio Service (GPRS) to the central database worked well. ViTTS produced accurately stored data, real-time availability, and a real-time overview of the patients (number, seriousness of injury, and location).ConclusionThe ViTTS provides a system for early, unique registration of victims close to the impact site. Online application and connection of the various systems used by the different chains in disaster relief promotes interoperability and enables patient tracking and tracing. It offers a real-time overview of victims to all involved disaster relief partners, which is necessary to generate an adequate disaster response.MarresGMH, TaalL, BemelmanM, BoumanJ, LeenenLPH. Online Victim Tracking and Tracing System (ViTTS) for major incident casualties. Prehosp Disaster Med. 2013;28(4):1-9.
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Song, Jun, Hong Huo, Teng Li, and Lingyun Chu. "A Dynamic Source Tracing Method for Food Supply Chain Quality and Safety Based on Big Data." Discrete Dynamics in Nature and Society 2022 (May 23, 2022): 1–11. http://dx.doi.org/10.1155/2022/6385201.

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The data of food quality tracing information have a few features, such as wide coverage range, many circulation links, complex data sources, low authenticity, and difficult information sharing. The continuous development of big data technology provides infinite possibilities for the construction of food quality source tracing systems. Currently, there are many studies on the application of food quality source tracing systems; however, most of them are in the field of food quality databases, and few have concerned about its application in the field of big data. Therefore, to fill in this research gap, this paper aimed to study a dynamic source tracing method for food supply chain quality and safety based on big data. At first, this paper summarized the variables of food supply chain quality and safety, constructed a Petri net model and a Bayesian network model for food quality prediction and source tracing, and realized the prediction of food quality features. Then, this paper applied two data analysis and processing methods—the density-based clustering algorithm and the cosine similarity algorithm—to preliminarily process the collected quality tracing information of each link in the food supply chain and analyzed the influencing factors of food quality. Finally, experimental results proved the effectiveness of the constructed model. Relying on the real-timeliness and authenticity of big data, this paper guarantees the credibility of the traceable information in the tracking process and improves the accuracy through real-time stream processing of the updated data, providing unlimited possibilities for the comprehensive tracking of food sources.
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van Aart, Evert, Neda Sepasian, Andrei Jalba, and Anna Vilanova. "CUDA-Accelerated Geodesic Ray-Tracing for Fiber Tracking." International Journal of Biomedical Imaging 2011 (2011): 1–12. http://dx.doi.org/10.1155/2011/698908.

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Diffusion Tensor Imaging (DTI) allows to noninvasively measure the diffusion of water in fibrous tissue. By reconstructing the fibers from DTI data using a fiber-tracking algorithm, we can deduce the structure of the tissue. In this paper, we outline an approach to accelerating such a fiber-tracking algorithm using a Graphics Processing Unit (GPU). This algorithm, which is based on the calculation of geodesics, has shown promising results for both synthetic and real data, but is limited in its applicability by its high computational requirements. We present a solution which uses the parallelism offered by modern GPUs, in combination with the CUDA platform by NVIDIA, to significantly reduce the execution time of the fiber-tracking algorithm. Compared to a multithreaded CPU implementation of the same algorithm, our GPU mapping achieves a speedup factor of up to 40 times.
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Mirzabeiki, Vahid, Violeta Roso, and Per Sjöholm. "Collaborative tracking and tracing applied on dry ports." International Journal of Logistics Systems and Management 25, no. 3 (2016): 425. http://dx.doi.org/10.1504/ijlsm.2016.079834.

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Mirzabeiki, Vahid, Per Sjöholm, and Violeta Roso. "Collaborative tracking and tracing applied on dry ports." International Journal of Logistics Systems and Management 25, no. 3 (2016): 425. http://dx.doi.org/10.1504/ijlsm.2016.10000434.

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Light, Ann. "Bridging Global Divides with Tracking and Tracing Technology." IEEE Pervasive Computing 9, no. 2 (2010): 28–36. http://dx.doi.org/10.1109/mprv.2010.27.

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Cohen-Almagor, Raphael, and Eldar Haber. "Tracking and Tracing in Israel during COVID-19." Israel Studies Review 38, no. 3 (2023): 29–50. http://dx.doi.org/10.3167/isr.2023.380304.

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Abstract In March 2020, the Israeli government decided that its internal security agency may collect, process, and use technological information measures to tackle the spread of COVID-19. This was done by tracking the cellphones of those who may have contracted the virus, along with obtaining details on those who were in proximity for more than fifteen minutes and fourteen days prior to the positive outcome of those traced. The article discusses the controversial track and trace measure and proposes an alternative model of using tracing technology, considering the obligation to preserve human life and the right to individual privacy among other rights and liberties. It is argued that measures infringing on the right to privacy must be effectively restricted in time and meet standards of necessity, proportionality, and scientific validity, as required by constitutional standards. The government needs to balance the right to health against the right to privacy.
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Mat Isa, Mohd Jamil. "Tracing And Tracking Malaysian Printmaking Exhibitions: 1960-2020." Idealogy Journal 8, no. 1 (2023): 28–40. http://dx.doi.org/10.24191/idealogy.v8i1.382.

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Historical records prove that printmaking was a medium of communication in various civilizations in Egypt, Japan, and Europe before it was elevated as one of the disciplines of painting. Penang was a popular location for this creative industry sector in the early stages. This study looks chronologically as much as possible at the organization of printmaking exhibitions in Malaysia from the 1960s until 2000. The activities organized by private art galleries play a significant role in the career of artists. The objective of this study is to chronologically document the organization of printmaking exhibitions by the National Art Gallery, private art galleries, and artist groups. Data collection methods through various gallery publication materials have been carried out to complete this study.
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Weterings, Veronica, Heidi Kievits, Miranda van Rijen, and Jan Kluytmans. "Methicillin-Resistant Staphylococcus aureus Prevalence Among Healthcare Workers in Contact Tracings in a Dutch Hospital." Infection Control & Hospital Epidemiology 41, S1 (2020): s316—s317. http://dx.doi.org/10.1017/ice.2020.910.

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Background: In The Netherlands, the national guidelines on Methicillin-Resistant Staphylococcus aureus (MRSA) prevention and control advocate screening of healthcare workers (HCWs) after unprotected exposure to MRSA carriers. Although this strategy is largely successful, contact tracing of staff is a time-consuming and costly component. We evaluated our contact tracing policy for HCWs over the years 2010–2018. Methods: A retrospective, observational study was performed in a Dutch teaching hospital. All HCWs who had unprotected contact with an MRSA carrier were included in contact tracing. When there had been a long period of unprotected admission prior to an MRSA finding, or when the index case was an HCW, the entire (nursing) team was tested. All samples of HCWs who were tested for MRSA carriage as part of contact tracing from 2010 until 2018 were included. A pooled nose, throat, and perineum swab was collected using the eSwab medium (Copan) and inoculated on chromID MRSA agar plates (bioMérieux) after enrichment in a broth. Molecular typing was performed using multiple-locus variable number of tandem repeat analysis (MLVA). Results: In total, we included 8,849 samples (range, 677–1,448 samples per year) from 287 contact tracings (range, 26–55 contact tracings per year). Overall, 32 HCWs were colonized with MRSA (0.36%; 95% CI, 0.26%–0.51%). None of them developed a clinical infection. Moreover, 8 HCWs (0.10%; 95% CI, 0.05%–0.19%) were colonized with the same MLVA type as the index case and were detected in 6 of 287 contact tracings (2%). In 4 of 8 of these cases, a positive HCW was the index for undertaking contact tracing. In 3 of 8 cases, it was clear that the HCW who was identified in the contact tracing was the source of the outbreak and was the cause of invasive MRSA infections in patients. Notably, a different MLVA type as the index case was found in 24 HCWs (0.27%; 95% CI, 0.18%–0.40%) of whom 7 of 24 HCWs (29.2%) were intermittent carriers. Conclusions: This study revealed a sustained low MRSA prevalence among samples in contact tracing of HCWs over 9 years. Furthermore, it shows that when MRSA contact tracing is performed according to the national guideline, only 1 of 1,000 samples results in a secondary case. This is similar to the population carriage rate of MRSA in The Netherlands. More frequently, an unrelated strain is found. These findings raise questions regarding the efficacy of the current strategy to perform contact tracing after unprotected exposure.Funding: NoneDisclosures: None
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Simon, Jules. "Tracing the Sacred, Tracing the Face." Levinas Studies 6 (2011): 9–28. http://dx.doi.org/10.5840/201164.

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Hall, Peter A. "Tracing the Progress of Process Tracing." European Political Science 12, no. 1 (2012): 20–30. http://dx.doi.org/10.1057/eps.2012.6.

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Schulte-Mecklenbeck, Michael, Anton Kühberger, and Rob Ranyard. "The role of process data in the development and testing of process models of judgment and decision making." Judgment and Decision Making 6, no. 8 (2011): 733–39. http://dx.doi.org/10.1017/s1930297500004162.

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AbstractThe aim of this article is to evaluate the contribution of process tracing data to the development and testing of models of judgment and decision making (JDM). We draw on our experience of editing the “Handbook of process tracing methods for decision research” recently published in the SJDM series. After a brief introduction we first describe classic process tracing methods (thinking aloud, Mouselab, eye-tracking). Then we present a series of examples of how each of these techniques has made important contributions to the development and testing of process models of JDM. We discuss the issue of large data volumes resulting from process tracing and remedies for handling those. Finally, we argue for the importance of formulating process hypotheses and opt for a multi-method approach that focuses on the cross-validation of findings.
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Afiif, Ahmad, Bunga, Besse Marjani Alwi, Nurkhalisah Latuconsinah, and Hasnawati Sade. "PENERAPAN KEGIATAN KOLASE SETELAH MENJIPLAK DI ATAS SKETSA BERGAMBAR UNTUK MENINGKATKAN ASPEK PERKEMBANGAN MOTORIK HALUS ANAK USIA 4-5 TAHUN DI TK AISYIYAH BUSTANUL ATHFAL II PERUMNAS." KHIDMAH: Jurnal Pengabdian kepada Masyarakat 3, no. 1 (2023): 11–19. http://dx.doi.org/10.24252/khidmah.v3i1.30822.

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The importance of increasing fine motor development in early childhood so that children carry out motor movements and activate their eyes with interesting and unique activities. Fine motor development in children, especially tracing by pasting grains on the child's tracing results. This study aims to determine the extent to which aspects of children's motor development are improved by tracing activities and then the results of the child's tracings are attached with green beans and peanuts at the age of 4-5 years. This community service research in the form of service learning was conducted at Aisyiyah Bustanul Athfal II Kindergarten with a total of 5 children. The instruments used are animal sketches, observation sheets for children and evaluation of the implementation of the intervention. Data were analyzed using descriptive statistics. The results showed that children were able to trace through pictorial sketches, then green seeds and peanuts were attached to the tracing results. The findings in this study imply that by applying the collage activity after tracing, it can train children's fingers to choose the seeds to be pasted on top of the tracing.
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Reisen, Nils, Ulrich Hoffrage, and Fred W. Mast. "Identifying decision strategies in a consumer choice situation." Judgment and Decision Making 3, no. 8 (2008): 641–58. http://dx.doi.org/10.1017/s1930297500001595.

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AbstractIn two studies on mobile phone purchase decisions, we investigated consumers’ decision strategies with a newly developed process tracing tool called InterActive Process Tracing (IAPT). This tool is a combination of several process tracing techniques (Active Information Search, Mouselab, and retrospective verbal protocol). After repeatedly choosing one of four mobile phones, participants formalized their strategy so that it could be used to make choices for them. The choices made by the identified strategies correctly predicted the observed choices in 73% (Experiment 1) and 67% (Experiment 2) of the cases. Moreover, in Experiment 2 we directly compared Mouselab and eye tracking with respect to their impact on information search and strategy description. We found only minor differences between these two methods. We conclude that IAPT is a useful research tool to identify choice strategies, and that using eye tracking technology did not increase its validity beyond that gained with Mouselab.
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Cahyadi, Eko Ruddy, Kinda Rizki Widianti, and Alim Setiawan Slamet. "The Use Behavior of Tracking and Tracing Services in E-Commerce Logistics." Jurnal Manajemen dan Organisasi 12, no. 1 (2021): 10–20. http://dx.doi.org/10.29244/jmo.v12i1.35373.

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An increasing business transaction can cause rapid growth in online shops and marketplace. One of the affected is an online shop. From several logistic services, tracking and tracing information services are the main focus in this study because online shops as the business partner have a lack of attention in these services. The objective of this study is to investigate the factors of online shop behavior in using tracking and tracing information services.This study used a unified theory of acceptance and use of technology (UTAUT) as the framework. The quantitative data were collected through questionnaires from 207 samples of online shops selling women’s fashion and listed in the marketplace. Data were analyzed using structural equation modeling (SEM) with LISREL 8.70.The result of this study found that “the intention to use” the tracking and tracing information services depend on the effort expectancy (EE) dan social influence (SI), while “user behavior” depends on facilitating condition (FC) and the intention to use. The ease of access factor and learning the tracking and tracing information services are the important factors for the intention to use, whereas electronic devices and internet network factors used by the online shops are the main factors for the user behavior. Logistics companies need to provide information services that can help the online shops in controlling their goods in a good way where the ease of access and learning become the main focus that needs attention. Furthermore, online shops need to facilitate their admins with technological devices and a good internet network to make the admins easy to access information services.
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Peng, Xian Qiang. "Research on Outdoor Positioning Based on Ray Tracing Method." Applied Mechanics and Materials 556-562 (May 2014): 3039–42. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.3039.

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GPS can’t detect the signal because of the cell complex environment in the outdoor and poor radio wave propagation conditions, so that the positioning result is not ideal. However, the positioning method using the ray tracing prediction of radio waves, the tracking point of the scene from all the source radiation, record the relevant parameters, and then positioned within the microcell environment can satisfy the demand. The principle of ray tracing was firstly introduced in this paper, then an outdoor positioning model was set up, finally, the corresponding simulation experiments was implemented to demonstrate the effectiveness of ray tracing positioning in the outdoor environments.
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Khader, Khalid, and Sujatha Chintha. "Digital contact tracing in epidemics: fast tracking the future." International Journal Of Community Medicine And Public Health 9, no. 10 (2022): 3930. http://dx.doi.org/10.18203/2394-6040.ijcmph20222588.

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The COVID pandemic has brought unprecedented changes in the current healthcare model, more as a necessity than by choice. The rapid unraveling of the pandemic has fast tracked the use of technology and artificial intelligence in healthcare systems by identifying and implementing more efficient processes to mitigate the crisis. Digital contact tracing technology (DCTT) has been hailed as the savior for opening up the community towards some semblance to the previous normal. Understanding contact tracing as both a proactive tool in the containing of an epidemics and as a reactive tool in limiting damages after spread is of utmost importance before taking a call into its effectiveness and implication on privacy of the individuals involved. The current pandemic response is like building a plane during its flight, and hence the risks involved in understanding the disease and mitigating the problems due to the novel nature of the disease needs to be done in real time. The political and social outcries on the use of DCTT are enough reasons for caution in applying previously unperfected technologies in diseases whose natural course has not yet been fully understood. The relationship between epidemics and contact tracing, conventional contact tracing, DCTT, different models of DCTT used during the current epidemic, limitations of DCTT and the future of incorporating DCTT into healthcare systems from the view of epidemiology and patient safety will be the primary focus of this article.
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Alfajri, Muhamad Fitra, and Nabil Cahya Wasiqi. "Pengembangan Model Tracking and Tracing dalam Komoditi Rantai Pasok Perikanan di Indonesia." Applied Information System and Management (AISM) 1, no. 2 (2018): 96–100. http://dx.doi.org/10.15408/aism.v1i2.20105.

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Indonesia memiliki sumber daya yang melimpah & didukung oleh iklim yang baik, sehingga potensi indonesia dalam komoditi perikanan cukup besar. Agar bahan pangan komoditi perikanan dapat dijual kepada masyarakat dengan kualitas dan kuantitas yang baik, maka perlu adanya pengelolaan dan kontrol yang baik pula disetiap rantai pasoknya sehinga, kegagalan dalam distribusi komoditi perikanan dapat dihindarkan. Model system tracking and tracing dapat menjadi strategi untuk menjamin keberhasilan distribusi komoditi perikanan secara tepat baik kuantitas maupun kualitas. Model tracking and tracing komoditi pertanian adalah sebuah sistem proaktif yang real time yang dilengkapi dengan komponen pendukung proses distribusi dengan data.
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Taiwo Akindahunsi, Victor Adeoye, Emmanuel Faderin, Olumayowa Adeleke Idowu, Chidiebere Izundu Chukwuka, and Oluwabunmi Blessing Adesina. "Contact tracing in epidemiology: Lessons learnt from COVID-19." Magna Scientia Advanced Research and Reviews 4, no. 1 (2022): 078–90. http://dx.doi.org/10.30574/msarr.2022.4.1.0083.

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Contact tracing is a powerful public health tool used in identifying people that might have been in contact with an infected person to assess the potential of being infected and transmitting the diseases. This review explores the history, implementation, and effects of contact tracing, as a significant public health strategy during the COVID-19 pandemic. The review started by giving a historical summary of contact tracing, then links it to early efforts at disease control for diseases such smallpox and TB. We further examine pre-COVID-19 contact tracing approaches, such as manual and early digital tools employed during past epidemics like Ebola and Zika. While investigating the development of digital innovations—such as Bluetooth-based applications and location data tracking—that were used to improve tracing efforts—the review emphasises the efficacy and problems of conventional manual contact tracing during COVID-19. Notably, we examine the hybrid models that combine manual and digital approaches, proving higher compliance and efficiency. Along with the difficulties countries with less efficient tracing systems—such as the United States and India—the review also includes worldwide case studies showing successful implementations in countries such Taiwan, South Korea, and New Zealand. Emphasising the need of public trust and the effect of the digital divide, it also covers public compliance and social elements affecting involvement in contact tracing programs. In order to strengthen public health preparedness for next pandemics, we offer potential options for contact tracing resilience, arguing for contact systems backed by technological developments and ethical protections. Informing best practices for next epidemiological tactics, this thorough analysis uncovers important insights and lessons learnt from the COVID-19 pandemic.
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Verma, Pulkit, and Neeraj Kumar. "COVID-19 Contact Tracing Applications: Design and Operations." International Journal of Health Sciences and Research 11, no. 4 (2021): 1–11. http://dx.doi.org/10.52403/ijhsr.20210401.

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The Digital footprint we create in our modern lives through hour handheld devices and wearable gadgets is enormous. It was little known that, in the light of the recent outburst of the pandemic, this digital footprint would play an important role in contact tracing of the infected patients. This digital encounter tracing came into existence in order to relieve the Heath Authorities from the burden of manually tracking the contacts. Different countries developed a number of contact tracing apps based on the different architectures for the same purpose. This paper analyses the different intricacies of the architectures currently in use from the perspective of information storage, division of processing, capabilities and possible security concerns. Effort has been made in order to touch upon the possible attacks in each of the architectures. The paper concludes with the future research efforts in possible optimization of the architecture and the protocols, which in turn may lead to better contact tracing and containment of pandemic. Key words: Digital Proximity, Contact Tracing, Bluetooth, GPS, DP, encryption, Anonymized, Decentralized, Open Source, PACT, DESIRE.
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Leng, Olivia Tan Swee, Rossanne Gale Vergara, and Shereen Khan. "Digital Tracing and Malaysia's Personal Data Protection Act 2010 amid the Covid-19 Pandemic." Asian Journal of Law and Policy 1, no. 1 (2021): 47–62. http://dx.doi.org/10.33093/ajlp.2021.3.

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Digital tracing is a proven effective means for the Malaysian government to trace and control the spread of COVID-19. However, the process of tracing and tracking in order to manage the spread of the pandemic have in many ways compromised personal information to third party applications. Malaysia is not the only country that uses digital tracing to manage the spread of the pandemic. Various countries have chosen different methods for digital contact tracing to manage the spread of COVID-19 and some are less respectful of privacy than others. This paper analyses Malaysia’s Personal Data Protection Act 2010 (PDPA) and its effectiveness in protecting personal data during the pandemic as Malaysians continue to utilise the contact tracing mobile applications such as MySejahtera and SELangkah. The researchers applied doctrinal research method and analysed the current Malaysian legislation on data protection. It should be noted that the PDPA does not apply in the case of government collection and would not require federal and state agencies to be transparent in their data management.
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Rane, Dharma, Madhu Singh, and Uttama Lahiri. "Automated Assesment of Eye-hand Coordination Skill using a Vertical Tracing Task on a Gaze-sensitive Human Computer Interaction Platform for children with Autism." Proceedings of the ACM on Human-Computer Interaction 8, ETRA (2024): 1–18. http://dx.doi.org/10.1145/3655598.

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Children with Autism often demonstrate atypical gaze pattern and eye-hand coordination skill deficits marked by difficulties in reaching out for an object, tracing on a vertically mounted canvas, etc. Currently existing conventional methods can assess one's coordination skill during hand movement in 3D-space. But such methods can be subjective and devoid of gaze tracking. Investigation of coordination skill and gaze tracking of this target group in tasks set in 3D-space has been largely unexplored. To quantitatively assess one's eye-hand coordination skill, we have designed Virtual Reality-based Automated gaze-sensitive Tool that can help understand the linkage between their gaze and 3D performance. Results of a study with 10 pairs of age-matched children with Autism (GroupASD) and typically developing children (GroupTD) showed that GroupASD demonstrated reduced eye-hand coordination skill (increased tracing error in vertical tracing task) accompanied with reduced fixation duration on task-relevant regions and atypical gaze path than GroupTD.
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M. Allam, Ali. "Improving the Privacy-Preserving of Covid-19 Bluetooth-Based Contact Tracing Applications Against Tracking Attacks." International Journal of Computer Science and Information Technology 13, no. 5 (2021): 49–57. http://dx.doi.org/10.5121/ijcsit.2021.13504.

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Bluetooth is an essential wireless standard for short-distance and low-power wireless networks. Health departments’ contact-tracing applications depended on Bluetooth technology to prevent infectious diseases from spreading, especially COVID-19. The security threats of the Bluetooth-based contact-tracing applications increased because an adversary can use them as surveillance tools that violate the user’s privacy and revealpersonal information. The Bluetooth standard mainly depends on the device address in its authenticated pairing mechanism (Secure Simple Pairing), which can collect with off-the-shelf hardware and software and leads to a tracking attack. To avoid the risk of tracking based on this security vulnerability in the Bluetooth protocol, we suggest a novel authentication protocol based on a noninteractive zero-knowledge scheme to substitute the authentication protocol used in the Bluetooth standard. The new protocol can replace the authentication protocol in the Bluetooth stack without any modification in the device pairing flow. Finally, we prove the security of our proposed scheme against the man-in-themiddle attack and tracking attack. A performance comparison with the authentication algorithm in the BLE standard shows that our method mitigates the tracking attack with low communication messages. Our results help enhance the contact-tracing application’s security in which Bluetooth access is available.
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