scholarly journals Research and Development of a COVID-19 Tracking System in Order to Implement Analytical Tools to Reduce the Infection Risk

Sensors ◽  
2022 ◽  
Vol 22 (2) ◽  
pp. 526
Author(s):  
Erik Vavrinsky ◽  
Tomas Zavodnik ◽  
Tomas Debnar ◽  
Lubos Cernaj ◽  
Jozef Kozarik ◽  
...  
Keyword(s):  
Research And Development ◽  
Medical Staff ◽  
Tracking System ◽  
Infection Risk ◽  
Infected Person ◽  
Pilot Experiment ◽  
Social Events ◽  
Analytical Tools ◽  
Proprietary Protocol ◽  
Mutual Communication

The whole world is currently focused on COVID-19, which causes considerable economic and social damage. The disease is spreading rapidly through the population, and the effort to stop the spread is entirely still failing. In our article, we want to contribute to the improvement of the situation. We propose a tracking system that would identify affected people with greater accuracy than medical staff can. The main goal was to design hardware and construct a device that would track anonymous risky contacts in areas with a highly concentrated population, such as schools, hospitals, large social events, and companies. We have chosen a 2.4 GHz proprietary protocol for contact monitoring and mutual communication of individual devices. The 2.4 GHz proprietary protocol has many advantages such as a low price and higher resistance to interference and thus offers benefits. We conducted a pilot experiment to catch bugs in the system. The device is in the form of a bracelet and captures signals from other bracelets worn at a particular location. In case of contact with an infected person, the alarm is activated. This article describes the concept of the tracking system, the design of the devices, initial tests, and plans for future use.

scholarly journals Visual Analysis of Twitter Data to Support Decision-Making in Law Enforcement: An Analytical Study of COVID-19

2021 ◽  
Author(s):  
Mamdooh Abdelmottlep ◽  
Muhammad Abdul Razzaq ◽  
Yousra Hassaan
Keyword(s):  
Public Opinion ◽  
Hierarchical Structure ◽  
Medical Staff ◽  
Visual Analysis ◽  
Accurate Information ◽  
The Public ◽  
Employment Conditions ◽  
Cluster Networks ◽  
The Hierarchical Structure ◽  
Analytical Tools

<p>The COVID-19 epidemic constituted a crisis for health facilities in 2020. This was due to less medical staff available, degrading employment conditions, and higher death rates. These conditions led to tweets (messages posted on Twitter) launching hashtags titled #In_solidarity_with_the_Egyptian_doctors (#متضامن_مع_أطباء_مصر ) to urge medical staff in Egypt to strike for better working conditions. This resulted in less medical care being provided and threats to public security. This study addresses the visual analysis of “Twitter platform” data during the COVID-19 pandemic in Egypt in April 2020 to test documented mechanisms to process mass data and identify accounts that lead the public opinion-gathering processes on Twitter. It analyzes the hierarchical structure and their ideological belonging. The study uses the URL Decoder/Encoder tool to transfer Arabic hashtags into codec symbols. The study deduced that dialogue clusters on Twitter formed Community Cluster Networks in the study sample. Findings proved significant in determining the accounts leading the public opinion-gathering process. They were recognized through the coordination and arrangement function, as well as the hierarchical structure of the group and their intellectual and ideological tendencies. Finally, the study confirmed the increase of decision makers’ opportunities in gathering accurate information and producing high-quality inferences when using multiple open-source analytical tools, especially information visual analysis tools.<br></p>

scholarly journals Igala proverbs as correctional tools in the hands of traditional elders

2020 ◽  
Vol 15 (1) ◽  
pp. 181-196
Author(s):  
Sunday Emah Sule ◽  
Sunday Joseph Ojonugwa ◽  
Joseph Akanya
Keyword(s):  
Cultural Values ◽  
Participant Observation ◽  
Relevance Theory ◽  
Moral Values ◽  
Human Relations ◽  
Everyday Language ◽  
Social Events ◽  
Traditional Institutions ◽  
Analytical Tools ◽  
Good And Evil

Igala proverbs play a very important role in everyday language of the Igala people. The language has beautiful proverbs which cover all aspects of the people’s life and culture. These proverbs are drawn from careful observation of social events, the lives of people and animals. Also, some proverbs have traces of experiences of the people’s occupations such as farming, fishing, hunting, weaving, wrestling and dancing. The language has proverbs that talk above family and human relations, good and evil, poverty and riches, joy and sorrow. It is on this basis that this study examines how the elders/traditional leaders who are custodians of Igala cultural values use proverbs as a generalized code for establishing standards in ethical and moral values, enthroning respect for elders and constituted authorities and discouraging the youths from embracing social vices prevalent in our society. This study adopts Dan Sperber’s and Wilson’s (1986) relevance theory. Participant observation and interview were the means of data collection. The data collected were analyzed using descriptive and analytical tools. The work uses the traditional contexts of Ogugu and Ankpa proverbs to present their epistemological significance in Igala kingdom. Keywords: Igala Proverbs, Correctional Tools, Traditional Elders, Relevance Theory, Traditional Institutions

scholarly journals Visual Analysis of Twitter Data to Support Decision-Making in Law Enforcement: An Analytical Study of COVID-19

2021 ◽  
Author(s):  
Mamdooh Abdelmottlep ◽  
Muhammad Abdul Razzaq ◽  
Yousra Hassaan
Keyword(s):  
Public Opinion ◽  
Hierarchical Structure ◽  
Medical Staff ◽  
Visual Analysis ◽  
Accurate Information ◽  
The Public ◽  
Employment Conditions ◽  
Cluster Networks ◽  
The Hierarchical Structure ◽  
Analytical Tools

<p>The COVID-19 epidemic constituted a crisis for health facilities in 2020. This was due to less medical staff available, degrading employment conditions, and higher death rates. These conditions led to tweets (messages posted on Twitter) launching hashtags titled #In_solidarity_with_the_Egyptian_doctors (#متضامن_مع_أطباء_مصر ) to urge medical staff in Egypt to strike for better working conditions. This resulted in less medical care being provided and threats to public security. This study addresses the visual analysis of “Twitter platform” data during the COVID-19 pandemic in Egypt in April 2020 to test documented mechanisms to process mass data and identify accounts that lead the public opinion-gathering processes on Twitter. It analyzes the hierarchical structure and their ideological belonging. The study uses the URL Decoder/Encoder tool to transfer Arabic hashtags into codec symbols. The study deduced that dialogue clusters on Twitter formed Community Cluster Networks in the study sample. Findings proved significant in determining the accounts leading the public opinion-gathering process. They were recognized through the coordination and arrangement function, as well as the hierarchical structure of the group and their intellectual and ideological tendencies. Finally, the study confirmed the increase of decision makers’ opportunities in gathering accurate information and producing high-quality inferences when using multiple open-source analytical tools, especially information visual analysis tools.<br></p>

scholarly journals A room, a bar and a classroom: how the coronavirus is spread through the air depends on heavily mask filtration efficiency

2020 ◽  
Author(s):  
Devabhaktuni Srikrishna
Keyword(s):  
Face Mask ◽  
Infection Risk ◽  
Filtration Efficiency ◽  
Transmission Risk ◽  
Infected Person ◽  
Short Supply ◽  
Infectious Individual ◽  
Healthcare Settings ◽  
Poor Ventilation ◽  
N95 Respirators

AbstractBackgroundRecently the US CDC acknowledged by that the COVID-19 crisis is facilitated at least in part by aerosolized virus exhaled by symptomatic, asymptomatic, or pre-symptomatic infected individuals. Disposable N95 masks remain in short supply due to their use in healthcare settings during the Coronavirus pandemic, whereas NIOSH-approved elastomeric N95 (eN95) masks remain immediately available for use by essential workers and the general public. New reusable N95 mask options with symmetric filtration efficiency can be anticipated to be NIOSH approved in the coming months, today’s eN95 masks have asymmetric filtration efficiency upon inhalation (95%) and exhalation (well under 95%) but are available now during the Fall and Winter when Coronavirus cases are expected to peak.MethodsBased on the Wells-Riley model of infection risk, we examine how the rate of transmission of the virus from one infected person in a closed, congested room with poor ventilation to several other susceptible individuals is impacted by the filtration efficiency of the masks they are wearing. Three scenarios are modeled – a room (6 people, 12’ × 20’ × 10’), a bar (18 people, 20’ × 40’ × 10’), and a classroom (26 people, 20’ × 30’ × 10’) with one infectious individual and remaining susceptibles. By dynamically estimating the accumulation of virus in aerosols exhaled by the infected person in these congested spaces for four hours using a “box model,” we compare the transmission risk (probability) when susceptible people based on a realistic hypothesis of face mask protection during inhaling and exhaling e.g. using cloth masks or N95 respirators.ResultsAcross all three scenarios, cloth masks modeled with 30% symmetric filtration efficiency alone were insufficient to stop the spread (18% to 40% infection risk), whereas eN95 masks (modeled as 95% filtration efficiency on inhalation, 30% on exhalation) reduced the infection risk to 1.5% to 3.6%. Symmetric filtration of 80% reduces the risk to 1.7% to 4.1% and symmetric filtration of 95% would further reduce the risk to 0.11% to 0.26%.ConclusionThis modeling of mask filtration efficiency suggests that the pandemic could be readily controlled within several weeks if (in conjunction with sensible hygiene) a sufficiently large majority of people wear asymmetric but higher-filtration masks (e.g. eN95) that also block aerosols whenever exposed to anyone else outside their household in order to completely stop inter-household spread.

scholarly journals Applications of RFID Systems in Healthcare Management: A Simulation for Emergency Department

2019 ◽  
Vol 8 (10) ◽  
pp. 786-792
Keyword(s):  
Patient Satisfaction ◽  
Emergency Departments ◽  
Medical Staff ◽  
Improve Patient Safety ◽  
Patient Flow ◽  
Tracking System ◽  
Waiting Times ◽  
Complex Structure ◽  
Healthcare Management ◽  
Heart Attacks

Emergency Departments are the most complex and busiest locations for patient flow in hospitals. Treatment of acute diseases, accidental injuries, heart attacks or different medical applications are performed in these centers. At this point, patients should receive effective treatments as soon as possible. Additionally, they can include in medical procedures such as triage, registration, treatment, transfer or hospitalization when they apply of this departments. There are many problems in these services due to their complex structure. For instance; long waiting times, leaving the hospital without excuse or without payment, lack of bed or medical staff, long staying times. For these reasons, patient cares and treatments will be affected. It is thought that using of RFID Technology will be expanded in the Emergency Departments that it may decrease long waiting times, improve the quality of treatment processes and increase patient satisfaction also. In this study, it is aimed to improve patient safety and quality with sustainable tracking system. In addition, a real-time warning mechanism will be created by determining the number of optimum medical staff due to this technology. As a result, length of stay of the patients will be reduced and patient satisfaction will be increased in Emergency Departments.

scholarly journals Is it Safe to Reopen Theaters During the COVID-19 Pandemic?

2021 ◽  
Vol 7 ◽  
Author(s):  
Chenjiyu Liang ◽  
Sihang Jiang ◽  
Xiaoliang Shao ◽  
Huan Wang ◽  
Shuai Yan ◽  
...  
Keyword(s):  
Emission Rate ◽  
Infection Risk ◽  
Supply System ◽  
Infected Person ◽  
Air Filtration ◽  
Maximum Probability ◽  
Infected People ◽  
Air Supply ◽  
The Right ◽  
Transmission Speed

Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is spreading globally, and its high transmission speed and mortality rate are severely interfering with people’s normal lives and the economy. Governments are now reopening their economies; however, the opening of theaters has been delayed, owing to their (often) crowded audiences and potentially higher infection risk. To determine whether it is safe to reopen theaters, in this study, the transport of contaminants released by an infected person in a theater hall with an overhead air supply system is analyzed numerically. The infection risks are calculated for occupants at various distances from the infected person in different directions and with/without wearing masks based on a revised Wells-Riley model, and under different supply air states and locations of the infected person. The results show that, first, the probabilities of infection in return air with filtration and all-fresh-air operations are decreased by 39.8 and 55.6%, respectively, as compared when the return air is not filtered. Second, the probabilities of infection for audiences sitting nine seats away from the infected person on the right, right-back, and back sides are 84.9–92.3%, 37.3–74.0%, and 36.3–72.0% lower, respectively, than those for audiences sitting one-seat away from the infected person. In addition, sitting in separate rows can reduce the maximum probability by 7.4–68.3%. Third, the probability of infection can be reduced by 93.7% after all the audiences wear masks with efficiencies of 75%. Fourth, the probability of infection can be controlled under a relatively safe range even though the quanta emission rate is 30 or 50 quanta/h, and even with two infected people in unfavorable seats. Thus, theaters can be safely reopened under return air filtration or all fresh air operations, and when audiences are sitting in separate seats and wearing masks.

Research and Development on Control System of Multicoil Inside Solidification Combined Winding Machine

2006 ◽  
Vol 505-507 ◽  
pp. 463-468 ◽  
Author(s):  
Bo You ◽  
Liang Ding ◽  
Jia Zhong Xu ◽  
Zhen Zhong Yu ◽  
De Li Jia
Keyword(s):  
High Pressure ◽  
Control System ◽  
Remote Control ◽  
Research And Development ◽  
Software Architecture ◽  
Machining Efficiency ◽  
Reinforced Plastic ◽  
Key Technologies ◽  
Winding Machine ◽  
Mutual Communication

Multicoil inside solidification combined winding machine, which can wind, solidify inside and extract high-pressure glass reinforced plastic (GRP) tubes, combines three conventional working procedures. The machine tool has four spindles of two groups working coordinately, improving machining efficiency greatly. This paper presents the realization of its control system, including the hardware and software architecture of the winding, inside solidification and extraction subsystems, and the mutual communication among them. Several key technologies such as the realization of openness, multicoil winding for heavy caliber tubes and remote control are also introduced.

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