bluuebunny/crossref_metadata_2025 huggingface dataset:
Data Privacy Concerns Using mHealth Apps and Smart Speakers: Comparative Interview Study Among Mature Adults
Authors: Schroeder Tanja , Haug Maximilian , Gewald Heiko
Published: April 2022

Background

New technologies such as mobile health (mHealth) apps and smart speakers make intensive use of sensitive personal data. Users are typically aware of this and express concerns about their data privacy. However, many people use these technologies although they think their data are not well protected. This raises specific concerns for sensitive health data.

Objective

This study aimed to contribute to a better understanding of data privacy concerns of mature adults using new technologies and provide insights into their data privacy expectations and associated risks and the corresponding actions of users in 2 different data contexts: mHealth apps and smart speakers.

Methods

This exploratory research adopted a qualitative approach, engaging with 20 mature adults (aged >45 years). In a 6-month test period, 10 (50%) participants used a smart speaker and 10 (50%) participants used an mHealth app. In interviews conducted before and after the test period, we assessed the influence of data privacy concerns on technology acceptance, use behavior, and continued use intention.

Results

Our results show that although participants are generally aware of the need to protect their data privacy, they accept the risk of misuse of their private data when using the technology. Surprisingly, the most frequently stated risk was not the misuse of personal health data but the fear of receiving more personalized advertisements. Similarly, surprisingly, our results indicate that participants value recorded verbal data higher than personal health data.

Conclusions

Older adults are initially concerned about risks to their data privacy associated with using data-intensive technologies, but those concerns diminish fairly quickly, culminating in resignation. We find that participants do not differentiate between risky behaviors, depending on the type of private data used by different technologies.
Current Landscape of Generative Adversarial Networks for Facial Deidentification in Dermatology: Systematic Review and Evaluation
Authors: Park Christine , Jeong Hyeon Ki , Henao Ricardo , Kheterpal Meenal
Published: April 2022

Background

Deidentifying facial images is critical for protecting patient anonymity in the era of increasing tools for automatic image analysis in dermatology.

Objective

The aim of this paper was to review the current literature in the field of automatic facial deidentification algorithms.

Methods

We conducted a systematic search using a combination of headings and keywords to encompass the concepts of facial deidentification and privacy preservation. The MEDLINE (via PubMed), Embase (via Elsevier), and Web of Science (via Clarivate) databases were queried from inception to May 1, 2021. Studies of incorrect design and outcomes were excluded during the screening and review process.

Results

A total of 18 studies reporting on various methodologies of facial deidentification algorithms were included in the final review. The study methods were rated individually regarding their utility for use cases in dermatology pertaining to skin color and pigmentation preservation, texture preservation, data utility, and human detection. Most studies that were notable in the literature addressed feature preservation while sacrificing skin color and texture.

Conclusions

Facial deidentification algorithms are sparse and inadequate for preserving both facial features and skin pigmentation and texture quality in facial photographs. A novel approach is needed to ensure greater patient anonymity, while increasing data access for automated image analysis in dermatology for improved patient care.
The Sociodemographic Digital Divide in Mobile Health App Use Among Clients at Outpatient Departments in Inner Mongolia, China: Cross-sectional Survey Study
Authors: Cao Li , Chongsuvivatwong Virasakdi , McNeil Edward B
Published: April 2022

Background

Mobile health (mHealth) apps have become part of the infrastructure for access to health care in hospitals, especially during the COVID-19 pandemic. However, little is known about the effects of sociodemographic characteristics on the digital divide regarding the use of hospital-based mHealth apps and their benefits to patients and caregivers.

Objective

The aim of this study was to document the cascade of potential influences from digital access to digital use and then to mHealth use, as well as the potential influence of sociodemographic variables on elements of the cascade.

Methods

A cross-sectional survey was conducted from January to February 2021 among adult clients at outpatient departments in 12 tertiary hospitals of Inner Mongolia, China. Structural equation modeling was conducted after the construct comprising digital access, digital use, and mHealth use was validated.

Results

Of 2115 participants, the β coefficients (95% CI) of potential influence of digital access on digital use, and potential influence of digital use on mHealth use, were 0.28 (95% CI 0.22-0.34) and 0.51 (95% CI 0.38-0.64), respectively. Older adults were disadvantaged with regard to mHealth access and use (β=–0.38 and β=–0.41), as were less educated subgroups (β=–0.24 and β=–0.27), and these two factors had nonsignificant direct effects on mHealth use.

Conclusions

To overcome the mHealth use divide, it is important to improve digital access and digital use among older adults and less educated groups.
Insights About Cannabis and Psychosis Using Video Games for Young People With a First Episode of Psychosis, Particularly Those From Black Racialized Communities: Protocol for a Mixed Methods Study (Preprint)
Authors: Archie Suzanne , Palaniyappan Lena , Olagunju Andrew T , Johnson Natasha , Kozloff Nicole , Sadeh Elham , Bardell Andrea , Baines Alexandra , Anderson Kelly K , Ayonrinde Oyedeji , Ferrari Manuela
Published: April 2022

BACKGROUND

Cannabis use disorder among young people with a first episode of psychosis contributes to relapse, hospitalization, and impaired functioning. However, few studies have examined what young people with early phase psychosis, particularly those from Black racialized communities, understand or appreciate about this relationship, even though they may be at risk. There are no formally tested knowledge translation strategies that disseminate these research findings for young people with emerging psychosis from Black racialized communities.

OBJECTIVE

This study aims to conceptualize what young people with early phase psychosis/cannabis use disorder understand about the relationship between cannabis and psychosis, focusing on people from racialized backgrounds. This study also aims to assess whether the knowledge translation product, the “Back to Reality Series,” increases awareness of the impact of cannabis use on psychosis from the perspectives of young people with emerging psychosis and cannabis use disorder from Black African and Caribbean communities.

METHODS

Qualitative analysis will reveal themes from qualitative interviews about cannabis and psychosis from the perspectives of young people with emerging psychosis and cannabis use disorder from Black African and Caribbean communities. Perceptions before and after exposure to the Back to Reality Series will be qualitatively analyzed. A control game will be used for comparison, and scores on a quiz after playing the Back to Reality Series will be quantitatively analyzed to establish whether the Back to Reality Series raises awareness of the effects of cannabis on psychosis. An advisory council involving young people from Black communities, family members, and clinicians will bring community perspectives to this research.

RESULTS

We began recruiting participants for this study in September 2021. We will complete data collection on demographic and clinical factors, qualitative interviews, and quantitative assessments of the Back to Reality Series.

CONCLUSIONS

The voices of young people from racialized backgrounds will generate preliminary data to inform early psychosis programs, addressing cannabis use in this population. The findings may advance the use of a new knowledge translation product that deals with gaps in knowledge about cannabis use for people experiencing early phase psychosis, particularly those from racialized communities.

INTERNATIONAL REGISTERED REPORT

DERR1-10.2196/36758
A Web Tool to Help Counter the Spread of Misinformation and Fake News: Pre-Post Study Among Medical Students to Increase Digital Health Literacy (Preprint)
Authors: Moretti Valentina , Brunelli Laura , Conte Alessandro , Valdi Giulia , Guelfi Maria Renza , Masoni Marco , Anelli Filippo , Arnoldo Luca
Published: April 2022

BACKGROUND

The COVID-19 pandemic was accompanied by the spread of uncontrolled health information and fake news, which also quickly became an infodemic. Emergency communication is a challenge for public health institutions to engage the public during disease outbreaks. Health professionals need a high level of digital health literacy (DHL) to cope with difficulties; therefore, efforts should be made to address this issue starting from undergraduate medical students.

OBJECTIVE

The aim of this study was to investigate the DHL skills of Italian medical students and the effectiveness of an informatics course offered by the University of Florence (Italy). This course focuses on assessing the quality of medical information using the “dottoremaeveroche” (DMEVC) web resource offered by the Italian National Federation of Orders of Surgeons and Dentists, and on health information management.

METHODS

A pre-post study was conducted at the University of Florence between November and December 2020. First-year medical students participated in a web-based survey before and after attending the informatics course. The DHL level was self-assessed using the eHealth Literacy Scale for Italy (IT-eHEALS) tool and questions about the features and quality of the resources. All responses were rated on a 5-point Likert scale. Change in the perception of skills was assessed using the Wilcoxon test.

RESULTS

A total of 341 students participated in the survey at the beginning of the informatics course (women: n=211, 61.9%; mean age 19.8, SD 2.0) and 217 of them (64.2%) completed the survey at the end of the course. At the first assessment, the DHL level was moderate, with a mean total score of the IT-eHEALS of 2.9 (SD 0.9). Students felt confident about finding health-related information on the internet (mean score of 3.4, SD 1.1), whereas they doubted the usefulness of the information they received (mean score of 2.0, SD 1.0). All scores improved significantly in the second assessment. The overall mean score of the IT-eHEALS significantly increased (P<.001) to 4.2 (SD 0.6). The item with the highest score related to recognizing the quality of health information (mean score of 4.5, SD 0.7), whereas confidence in the practical application of the information received remained the lowest (mean of 3.7, SD 1.1) despite improvement. Almost all students (94.5%) valued the DMEVC as an educational tool.

CONCLUSIONS

The DMEVC tool was effective in improving medical students’ DHL skills. Effective tools and resources such as the DMEVC website should be used in public health communication to facilitate access to validated evidence and understanding of health recommendations.
Environmental Awareness among Students
Authors: Verma Aniket , Verma Vishal
Published: April 2022

Abstract: This paper mainly focused on environmental awareness and practices related to various factors like causes of pollution, conservation of soil, forest, air, etc., energy conservation, conservation of human health, conservation of wild life and animal husbandry. It also discusses environmental practices among college students with regard to the usage of plastic and its disposal, alternative for plastic, toilet usage, its use in the cultivation of saplings, rainwater harvesting and also their participation in environment related programmes.. The target was college students because environmental education is part of their curriculum; they can implement what they learnt. This study will support those who are working with for the environment related cases. The study is quantitative in nature. It reveals that the level of awareness is high among the respondents irrespective of gender difference but in practice levelthere is difference between genders i.e. males practicing more than females. This study also proposes some recommendations to safeguard the environment in India
Practical Analysis of Long-Term Impacts of Hotels Strategic Responses and How to Overcoming in the Covid-19 Crisis?
Authors: Gupta Prateek , Gupta Aman , Gragya Aarav , Chaudhary Ayush , Pandey Krishna , Malik Tejasev , Sharma Shubhangi , Bisaria Siddhima
Published: April 2022

Abstract: This study explores the interplay between public measures adopted by the governments to combat COVID-19 and the performance of the hospitality industry. Overall, our findings show that most of the government interventions were associated with a negative response in the returns of the hospitality industry, a response that became more negative as the COVID-19 pandemic evolved. The main research shows that labour actions, especially plans for temporary employment regulations, innovation and differentiation strategies, and reorientation to closer markets and obtaining information from official sources as a guarantee of their certainty, are the measures that have a greater impact on the possibilities of recovering hotel activity. In addition, government measures that contribute to the improvement of the financial situation of firms can also play a relevant role in hotel recovery. The aims to identify the possible shift in importance of hotel choice and satisfaction attributes during the Covid-19 pandemic. To explore a shift of importance, a qualitative thematical analysis was chosen. Further, guest reviews were collected from two major OTAs. The resumption of activities during and after the pandemic, comparing the COVID-19 pandemic with previous public health crises, and measuring the impact of the pandemic in terms of economics. However, the ongoing Covid-19 pandemic has decelerated and changed the hotel industry globally. For many guests, it is the first time, they travel after the hotel industry almost stopped globally, with lockdowns and curfews. A hotel company is interconnected with various partners in the supply chain, thus, the problem in hotel operation is transferred upstream the supply chain. provisions to cope with the new reality, including safety measures, technology application, quality of service, marketing communication, human resource management, and the supply chain management. Keywords: COVID-19, pandemic, hospitality industry, tourism, systematic, hotel business, safety, WHO, variants, Crisis management, Lockdown, healthcare, hotel management, AI
Pipe Inspection Robot
Authors: Patel Firoz , Pathan Aaftab , Ranasariya Ayaz , Shailkh Asad , Ahire Harshal
Published: April 2022

Abstract: The engineer is constantly conformed with the challenges of bringing ideas and design into reality. New machines and techniques are being developed continuously to manufacture various products at cheaper rates and high quality. The pipe inspection robot with active pipe-diameter adaptability and automatic tractive force adjusting is developed for long-distance inspection of main gas pipelines with different diameter series. Its physical design employs the scheme that three sets of parallelogram wheeled leg mechanism are circumferentially spaced out 120° apart symmetrically. This structural design makes it possible to realize the adaptation to pipe diameter and tractive force adjusting together. On the basis of analyzing the mechanical actions of the adaptation to pipe diameter and tractive force adjusting, the related mechanical models are established, and their control system structure and control strategy are discussed. To verify the pipe-diameter adaptability and tractive force adjusting of the robot, related field experiments are implemented in actual underground gas pipeline. The experimental results show that the theoretical analysis in this paper is valid and the prototype of this robot can work well in actual underground gas pipelines. Compared with other similar robots, this robot, which employs active mode for its adaptability to pipe diameter, can be adaptable to the wide range of gas pipeline diameters from ∅300 mm to ∅500 mm and automatically provide a stable and reliable tractive force with strong capacity of tractive force adjusting. As a mobile carrier for visual inspection wireless camera is mounted to see corrosion, crack, defect, and holes of main gas pipelines, spring is also mounted in middle for making it flexible to take turn. Keywords: In pipe robot, Active pipe diameter adaptability; Tractive force adjusting; Gas pipelines inspection
Smart Entrance System with Health Monitoring
Authors: Patil Mugdha , Khambal Miheer , Gosalia Drashti , Dagare Akshay , Kumar Prof. Mohan
Published: April 2022

Abstract: In the aftermath of the coronavirus infection (COVID-19), contact with people has become an important risk factor. It is widely believed that the risk of spreading the virus increases with the number of people in contact with other objects or people. According to the World Health Organization (WHO), high fever and heart palpitations are the two most common symptoms of COVID-19. It is also recommended to wash your hands frequently and use an appropriate mask. That's why our project is trying to create a system that checks the body temperature, mask and heart rate of people entering the facility to make sure they are safe. Also, checks if the mask is worn correctly. Hence through our project we are trying to build a system that will make sure you are protected. Immediately after that, a non-contact disinfectant is provided which guarantees minimal contact between the person and the system. Keywords: COVID19, Open Source Computer Vision, TensorFlow, mask detection, temperature sensing, pulse detection, contactless hand sanitization.
Efficient PPA Nano AES for IoT Applications
Authors: G S Dr. Yogesh , R Dr. Anitha , S Sagar
Published: April 2022

Abstract: Due to the fast-growing number of connected tiny devices to the Internet of Things (IoT), providing end-to-end security is vital. Therefore, it is essential to design the cryptosystem based on the requirement of resource constrained IoT devices. This article presents a lightweight advanced encryption standard (AES), a high-secure symmetric cryptography algorithm, implementation on field-programmable gate array (FPGA) and 65-nm technology for resource-constrained IoT devices. The proposed architecture includes 8-bit data path and five main blocks. We design two specified register banks, Key-Register and State-Register, for storing the plain text, keys, and intermediate data. To reduce the area, Shift-Rows is embedded inside the State-Register. To adapt the Mix-Column to 8-bit data path, we design an optimized 8-bit block for Mix-Columns with four internal registers, which accept 8-bit and send back 8-bit. Also, a shared optimized Sub-Bytes is employed for the key expansion phase and encryption phase. To optimize Sub-Bytes, we merge and simplify some parts of the Sub-Bytes. To reduce power consumption, we apply the clock gating technique to the design. Application-specific integrated circuit (ASIC) implementation results show a respective improvement in the area over the previous similar works from 35% to 2.4%. Based on the results, the proposed design is a suitable cryptosystem for tiny IoT devices. Keywords: IOT, Clock gating technique, ASIC
Fitting Regression Model and Optimization of Cutting Parameters In Order To Achieve Economical Machining Of a Cryogenic Soaked Magnesium Alloy
Authors: Bhowmik Debottam , Kakoti Susanta Kumar
Published: April 2022

Abstract: In present times many industries are giving more importance in reducing the overall cost of production and in this regard reduction in weight of the work material has become necessary which in turn reduces the power consumption required for machining and hence leads to reduction in overall costs. Thus usage of light weight materials has garnered deep interest in the industries. This project deals with the turning of Mg AZ31B alloy for the above stated reasons. The objective of this work is to optimize the influencing cutting parameters like speed, feed, depth of cut and approach angle of the cutting tool by using experimental engineering design techniques like Taguchi method of orthogonal array, analysis of variance method to compute contribution of each of these parameters on the quality of machined output. The response variables taken up for this analysis were surface roughness, material removal rate, tool wear rate and machining time as all these factors governs the quality of the machined product and hence relates to economics of machining. Regression models have been developed in order to study about the mathematical relation between the input cutting parameters and each of the output variables. Contour plots have been drawn to study about interactions between the input cutting parameters and its impact on the output variables. In order to study the effect of cryogenic soaking on the work specimen Vickers hardness test has been performed to check the enhancement of the hardness before and after cryogenic soaking. The experimental data shows that surface roughness is mostly affected by approach angle of the cutting tool whereas material removal rate, tool wear rate and machining time were mostly affected by depth of cut. From the confirmatory test it was evident that Taguchi analysis helps in optimizing the output variables. It was also observed that cryogenic soaking suitably increases the hardness of the material thus making it more machinable. Keywords: Economical Machining, Optimization, Taguchi method, CNC Turning, Mg AZ31B, Regression Modelling, Contour plots, Cryogenic Soaking.
Deaf and Dumb Gesture Recognition System
Authors: Shah Vaibhav
Published: April 2022

Abstract: Rising incidents of visual and hearing imparity is a matter of global concern. India itself has around 12 million visually impaired people and over 21 million people are either blind or dead or both. For the blind people, there are various solutions existing such as eye-donation, and hearing aid for the deaf butnot everyone can afford it. The purpose of our project is to provide an effective method of communication between the natural people and the impaired people. According to a research article in the “Global World” on January 4,2017with a deaf community of millions, hearing Indiais only just beginning to sign. So, to address this problem, we are coming forth with a model based on modern and advanced technologies like machine learning, image processing, artificial intelligence to provide a potential solution and bridge the gap of communication. The sign method is the most accepted method as a means of communication to impaired people. Themodel will give out the output in the form of textand voice in regional as well as English languages so it can have an effect on the vast majority of the population in rural as well as urban India. This project will definitely provide accessibility, convenience, safety to our visually impaired brothers and sisters who are lookedupon by the society just because of their disability. Keywords: Machine learning, GestureRecognition, Sign Language.
A Novel FDM Based Additive Manufacturing of PLA Components Using Optimized Deep Learning Strategy
Authors: Gotkhindikar Nitin , Mehta Parshwa , Londhe Shrutika , Kulkarni Anushka , Rekhe Maithili
Published: April 2022

Abstract: Fused Deposit modeling (FDM) is an additive manufacturing (AM) process that's frequently used to fabricate geometrically complex shaped prototypes and complex parts. It's gaining market as it reduces cycle time for product development without the need for high priced tools. Still, the commercialization of FDM technology in other artificial operations is presently limited due to several failings, alike as inadequate mechanical properties, poor surface quality, and low dimensional accuracy. The rates of FDM- produced products are affected by other process parameters, for illustration, layer thickness, build angle, raster width, or print speed. The process parameters and their range depends on the section of FDM machines. Filament materials, nozzle dimensions, and the type of machine determine the range of other parameters. The optimum setting of parameters is supposed to ameliorate the rates of three-dimensional (3D) printed specimens and may reducepost-production work. This paper intensely reviews state-of-the- art literature on the influence of parameters on part qualities and the being work on process parameter optimization. Also, the failings of being workshop are linked, challenges and openings to work in this field are estimated, and directions for future research and development in this field are suggested Keywords: Fused deposition modelling; process parameters; part characteristics; optimization
Smart Shopping System using RFID
Authors: Kole Pramila , Jagtap Nikita , Kawade Kamlesh , Wankhede Prof. Deveshree
Published: April 2022

Abstract: The contemporary day digital generation is primarily based totally on embedded a gadget that's integrating lots of transistors on unmarried silicon chip. The essential of goal of developing generation is to make existence have become easier. Nowadays Shopping mall is an area in which human begins get their each day necessities. In mall for getting variety of object it calls for trolley. Every time patron has to do calculations of these object & want to examine it together along with his price range in pocket. After this procedure, patron has to look forward to billing. So, to keep away from headache like pulling trolley, ready in billing queue we're introducing new idea that is “SMART SHOPPING SYSTEM USING RFID”. In this gadget we use RFID tags can be at the product it will likely be scanned and suggests the entire quantity of the products. If they wants to remove an items they can easily remove or adding a new items. Index Terms: RFID Tag, RFID Reader, Application, Sensor
Design and Fabrication of Motorized Hydraulic Jack System
Authors: More Durvesh Rohidas , Patil Aditya Arun , Thakare Adesh Ananta , Vartak Nishank Rajesh , Ansari Md Saqib
Published: April 2022

Abstract: A jack is a mechanical lifting device used to apply great forces or lift heavy loads. A mechanical jack employs a screw thread for lifting heavy equipment. A hydraulic jack uses hydraulic power. In the case of tyre puncture or replacing wheels lift the car is more important part. This time we use traditional ways to lift the tyre. In that case a physically handicapped person, older person aged person not lifts the tyre easily. They require more time and also require more force to lift the tyre. In that way to help those who are physically challenged, aged person this project automatic hydraulic jack system is more useful. So, we tried to grab the opportunity. Here we use a wiper motor to drive the hydraulic jack loading subsequently and automatically. Keywords: Hydraulic jack, Mechanical jack, Motor, Battery, Switch
Design and Fabrication of Compost Machine
Authors: Bangar Mohan , Yadav Sushil , Ghone Pranav , Ansari Noman , Ansari Prof. Md. Saqib
Published: April 2022

Abstract: Organic waste and Food waste is a worldwide problem, is cost to be disposed and nothing is gained from it on the contrary, it causes the fission of harmful gas such as methane. Vegetable waste with high moisture content and readily biodegradable nature is causing major environmental problems due to improper waste management practices The Design and Fabrication of Compost Machine in India. So, composting could be considered the best alternative for the treatment of these organic fractions. Composting has proven to be a valid solution to this problem. The objectives of this project are to design a composting machine with certain parameters for the design, Process time, and easy, odourless and power saving. The designed food waste decomposition system is designed for rapid composting performance. It can be used for households, restaurants, hotels, schools, apartment buildings, communities, offices and cafeterias depending on the capacity of the machine. The system ploys high temperature to decompose food waste and organic matter. The prototype was able to decompose organic waste in a time frame of 38 to 50 hours with minimum harmful gases emissions and odours. Keywords: Vegetable waste, decomposition, recycling process, solid waste management.
A Survey on Car Service Slot Booking System
Authors: Reddy Chaganti Sandeep , Savant Dr. Preeti
Published: April 2022

Abstract: The purpose of implementing this application was for users to book a slot for car servicing by using the car service app. This paper explains the detailed development of a service for cars. This offers services that are more efficient, safe, affordable, and convenient services to everyone. In this current situation, the efficient and easy way to reach the people are by using social media and by using some mobile apps, and web pages. Another advantage is the customers need not invest their extra time to get the services. The services will be provided during their office timings and providing them more convenience by saving their time. Before implementing this concept was tested with a survey, which led to further analysis and positive responses. This application mostly saves time and human work free. Users can book the services at anytime and anywhere. This type of service is now growing very rapidly, and the booking system is used very easily and is more accessible. Now everywhere all are online services and just one click away. The car service app is allowed to book the slot for car service. By using this app, customers can book the service at their flexible time. It’s a user-friendly application. In this application, customer data will store very securely. This app can be run on any android compatible tablet and mobile phone. The application can be used by any car holder to get their car services. Index Terms: Car service, android application, booking car cleaning
Gender differences learning strategy at English Language Education Department Students University Of Muhammadiyah Malang
Authors: Andini Thathit Manon , Prastiyowati Santi
Published: April 2022

Gender difference can be assumed as an individual difference generally existing and catching attention in the foreign language teaching and learning.This research aims at finding out the strategies used by the students in learning English and students’ perspective on the learning strategies based on their gender. The data are gathered through questionnaires and interview which are given to the students of English Language Education Department. This study discovered that male and female students differ in the learning strategy, and the female students score higher in the use of learning strategy than the males. Metacognitive and social learning strategy were highly used by female students. On the other hand, male students score compensation, metacognitive and cognitive learning strategy as their attempts to learn English. The result also found that females use all the strategies more often than males particularly on metacognitive strategy. Moreover, there are differences in the use of other strategies, but the finding is not remarkable.
Penggunaan lembar kerja berciri representasi matematis: uji pengaruh terhadap kemampuan rekognisi simbol matematika
Authors: Zukhrufurrohmah Zukhrufurrohmah , Putri Octavina Rizky Utami
Published: April 2022

Mathematical representation is one of the mathematical recognition’s form. This study aimed to compare the ability of students' mathematical symbol recognition between learning using Student Activity Sheets characterized by mathematical representation and learning using group presentation assignment activities. The research method employed Posttest-Only Control Group Design, between the control class and the experimental class. The control class is a class with group presentation learning assignments while the experimental class is a class with learning that uses MFIs characterized by mathematical representations. The data were obtained by providing tests to measure students' mathematical recognition abilities. The data were analyzed by using the t-test. The results of calculations with the help of SPSS showed that data from both classes are normally distributed and homogeneous. The results of data analysis conducted by t-test showed sig. ≥0.05 so H1 is rejected and H0 is accepted which means that there was no difference in the ability to recognize mathematical symbols between the control class and the experimental class. There was no difference in recognition abilities between the control class and the experimental class because learning activities in both classes are student-centered learning.
Pengembangan bahan ajar open-ended melalui polysynchronous learning berbantuan canvas
Authors: Susanti Reni Dwi , Ummah Siti Khoiruli
Published: April 2022

The current Covid-19 pandemic has severely impacted education where learning must be carried out online. Canvas is among polysynchronous e-learning platforms available. This study aims to describe the effectiveness of open-ended teaching materials through Canvas-assisted Polysynchronous Learning. This topic was chosen considering the importance teaching materials to support the implementation of Polysynchronous Learning. This study developed learning modules and power points as learning media, and Google form as evaluation media. Research and Development (R&D) approach was employed with ADDIE (Analysis, Design, Development, Implementation, and Evaluation) development model. These materials were validated by material and media experts to measure their effectiveness. Results show that the teaching materials are valid and feasible. These teaching materials were implemented through a polysynchronous learning where student activities reached 89%. It is implied that these materials could enhance student learning. Students’ learning outcomes (final test) are categorized good with the average score of 80.8; the distribution of 44 points for A, 24 for B+, and 12 for B.
Corrigendum: Distinguishing genomic homogenization from parapatric speciation in an elevationally replacing pair of Ramphocelus tanagers
Authors: Luzuriaga-Aveiga Vanessa , Ugarte Mauricio , Weir Jason
Published: April 2022

Geographically connected species pairs with weakly differentiated
genomes could either represent cases of genomic homogenization in
progress or of incipient parapatric speciation. Discriminating between
these processes is difficult because intermediate stages of either may
produce weakly differentiated genomes that diverge at few locations. We
used coalescent modelling applied to a genome-wide sample of SNPs to
discriminate between speciation with gene flow and genomic
homogenization in two phenotypically distinct but genomically weakly
diverged species of elevationally replacing Ramphocelus tanagers,
forming a hybrid zone in the Andean foothills. We found overwhelming
support for a model of genomic homogenization following secondary
contact. Simulating under this model suggested that our species pair was
differentiated (FST = 0.30) at secondary contact but that most of the
genome has rapidly homogenized during 254 Ky of high gene flow towards
the present (FST = 0.02). Despite extensive genome-wide homogenization,
plumage remains distinctive with a narrower than expected geographic
cline width, indicating divergent selection on colour. We found two SNPs
significantly associated with plumage colour, which retain moderately
high FST. We conclude that the majority of the genome has fused, but
that divergent selection on select loci probably maintains the
geographically structured colour differences between these incipient
species.
EPIDEMIOLOGICAL AND HISTOLOGICAL PROFILE OF CANCERS AT THE UNIVERSITY CLINICS OF LUBUMBASHI IN THE DEMOCRATIC REPUBLIC OF CONGO
Authors: Koba Criss , Mashinda Desiré , Luboya Oscar , Nkumuyaya Mireille , Nkumuyaya Robert , Diyoka Chadrack Kabeya , Kabyla Benjamin
Published: April 2022

Introduction: Cancers in children under the age of 17 have specific
epidemiological and management aspects. The objective of this study was
to determine the epidemiological and histological profile of childhood
cancers in Lubumbashi. Method: A cross-sectional descriptive study
conducted at the University Clinics of Lubumbashi over a lap of
two-year. The data collection was done using a form with a number of
parameters. Results: We noted a prevalence of (3.27%) childhood cancer
in Lubumbashi and the percentage had increased in 2018 (53.5%)
comparing to the previous years. The average time between the onset of
the disease and the first consultation was 33.5-7.1 weeks and only
(71%) cases had consulted a general practitioner at first sign of the
disease. From the histological point of view retinoblastoma led the way
with 29.2%, followed by Nephroblastoma (23.3%), lymphomas of all forms
(13.2%). Other types of cancers were repeated, representing 28.3%.
Conclusion: This pathology is a reality that is experienced in large
numbers in our environment diagnosis and early treatment remain
essential to the reduction of the mortality rate
Acute Soft Head Syndrome in Sickle Cell Anemia: Creating A Firm Approach
Authors: Drew Mark , Fladeland Derek , Sinha Roona
Published: April 2022

Sickle cell disease (SCD) is the most common inherited disease worldwide
and presents with a myriad of complications1. A rare complication of SCD
is acute soft head syndrome (ASHS). We present the case of a 14-year-old
male with homozygous sickle cell anemia (HbSS) who presented with
vaso-occlusive crisis (VOC) complicated by the peculiar development of a
scalp mass. Magnetic resonance imaging (MRI) showed calvarium changes
consistent with ASHS. Current literature lacks standardized management
for such a complication. As such, we outline recommendations for imaging
modalities, therapeutic interventions, and ongoing management based on
this patient’s course over two years.
HSPA9 frameshift and loss-of-function mutations in a patient manifesting syndromic sideroblastic anemia and various congenital anomalies
Authors: Watanabe Atsuko , Fujiwara Tohru , Ohta Atsuhiko , Shimizu Yuki , Tanaka Ryuhei
Published: April 2022

We describe a case of a Japanese boy with syndromic congenital
sideroblastic anemia who presented with various non-hematological
symptoms. Genetic analysis showed a heterozygous frameshift mutation
(c.1639delA) and T/T genotype of the common coding single nucleotide
polymorphism rs10117 (c.1933C>T) in HSPA9. Parental
analysis revealed that the father carried the same frameshift mutation
as well as rs10117 (T/T) but was not anemic. While the rs10117T allele
is associated with lower HSPA9 expression, the expression levels are
variable. We speculate that the possible differences in the HSPA9 mRNA
expression levels between the child and his father may have caused the
phenotypic difference.
TP53 Germline Pathogenic Variant Frequency in Anaplastic Rhabdomyosarcoma: A Children’s Oncology Group Report
Authors: Fair Douglas , Maese Luke , Chi Yueh-Yun , Li Minjie , Hawkins Douglas , Venkatramani Rajkumar , Rudzinski Erin , Parham David , Teot Lisa , Malkin David , Plon Sharon , Li He , Sabo Aniko , Lupo Philip , Schiffman Joshua
Published: April 2022

Rhabdomyosarcoma (RMS) is a well-described cancer in Li-Fraumeni
Syndrome (LFS), resulting from germline TP53 pathogenic variants (PVs).
RMS exhibiting anaplasia (anRMS) have been associated with a high rate
of germline TP53 PVs. This study provides an updated estimate of the
prevalence of TP53 germline PVs from a large cohort of patients (n=239)
enrolled in five Children’s Oncology Group (COG) clinical trials.
Although the prevalence of germline TP53 PVs in anRMS patients in this
series is much lower than previously reported, this prevalence remains
significantly elevated. Germline genetic evaluation for TP53 PVs should
be strongly considered in patients with anRMS.
Surfactant Administration in Preterm babies (28-36 weeks) with Respiratory Distress Syndrome: LISA vs InSurE, an Open-Label Randomized Controlled Trial
Authors: Mishra Aradhana , Joshi Amol , Londhe Atul , Deshmukh Laxmikant
Published: April 2022

ABSTRACT INtubation- SURfactant-Extubation (InSurE) approach is
traditional method of surfactant delivery in preterm neonates with
Respiratory Distress Syndrome (RDS). Newer, Less Invasive Surfactant
Administration(LISA) techniques lessen the need for mechanical
ventilation and its adverse consequences. Evidence on the favourable
effects of LISA can’t be extrapolated from developed to developing
countries. Aim of Study is to compare the effectiveness of InSurE and
LISA. Objectives: Primary outcome was to find need of
intubation and mechanical ventilation within 72 hrs of birth. Neonates
were followed until discharge/death for adverse events and
complications. Material & Methods: Open-label RCT was
conducted at tertiary neonatal intensive care unit. Preterm neonates
with diagnosis of RDS were randomized in two groups (InSurE or LISA) to
receive surfactant soon after birth. Results: Total of 150
neonates were analysed (75 in each group). Insignificant Statistical
difference was seen in the need for intubation and mechanical
ventilation within 72 h of birth between the two groups [InSurE, 30
(40%) and LISA, 30(40%), relative risk 1.0, 95% confidence interval
0.68–1.48]. 12% (n=9, LISA group) & 14.6% (n=11 InSurE group) had
adverse events during the procedure. Also, we observed insignificant
statistical difference in the rates of major complications or duration
of respiratory support, hospital stay & mortality. Conclusion:
: LISA and InSurE are equally effective for surfactant administration in
the treatment of RDS, when NIPPV is the primary mode of respiratory
support. More RCTs are required to compare the efficacy & long-term
outcomes of LISA with InSurE. Keywords- Intubation, Mechanical
Ventilation, NIPPV.
A case of Unicuspid Aortic Valve with Hidden Subaortic Ridge
Authors: Abdelgawad Hoda , Abdel-Hay Mohamed , Shehata Mahmoud
Published: April 2022

57-years old man presented with exertional dyspnea. An early systolic
murmur was heard over the aortic areas 2D and 3D Echocardiography
revealed unicuspid , unicommissural aortic valve (UAV) with a
characteristic “teardrop” lateral orifice (Figure A) and moderate
valve stenosis (3D planimetered aortic valve area (AVA) is 1.1cm2)
(Figure B) Continuous wave Doppler across aortic valve (AV) showed high
peak and mean systolic gradients of 85 and 60mmHg respectively.(Figure
C). 2D /3D Transesophageal Echocardiography (TOE) revealed a subaortic
ridge attached to the posterior annulus (Arrow) (Figure D) Further
En-face viewing of the aortic valve from the left ventricular outflow
tract (LVOT) perspective showed a shelf-like ridge extending from the
commissure to the cusp (Arrow) (Figure E) Zoomed mode of the aortic-
LVOT junction confirmed the presence of the subaortic ridge seen
attached to the posterior aortic annulus near the commissural opening
(Figure F) The patient was referred for surgical consultation ..
Unicupid aortic valve (UAV) is a rare congenital anomaly that has.2
subtypes ; unicomissural and acommissural subtypes. Both can present
with variable degrees of the aortic stenosis (AS) and/or aortic valve
regurgitation (AR).UAV has more early, accelerated and severe valvular
degeneration in addition to smaller orifice in comparison with bicuspid
and tricuspid aortic valve. Echocardiography is the gold standard for
diagnosis and evaluation of the AV morphology and function and the
associated disorders such as ventricular septal defect , aortopathy and
subaortic obstruction.. Surgical aortic valve replacement (AVR) and
repair of the associated anomalies are the most common treatment
modality .
Consistency of transesophageal echocardiography and angiography in grading (using the Valve Academic Research Consortium 3 criteria) of perivalvular regurgitation during transcatheter aortic valve replacement
Authors: Ye Dalin , Gao Ziqing , Ye Feile , Li Liujun , Fei Chen , Chen Xiaobo
Published: April 2022

The aim of this study was to evaluate the consistency between
transesophageal echocardiography (TEE) and angiography in grading of
paravalvular regurgitation (PVR) during transcatheter aortic valve
replacement (TAVR) according to the Valve Academic Research Consortium 3
(VARC-3) criteria. 31 patients who underwent TEE and angiography during
TAVR were retrospectively included. Circumferential extent of PVR,
regurgitation volume, regurgitation fraction, and the effective
regurgitant orifice area were measured by TEE. Weighted kappa
coefficient was used to analyze the consistency of the two techniques.
PVR was found in 16 of 31 patients. TEE assessed mild PVR in 14 cases
and moderate PVR in 2 cases. Angiography assessed mild PVR in 12 cases
and moderate PVR in 2 cases. The grading of TEE and angiography were the
same in 29 cases, of which 15 were absent, 12 were mild, and 2 were
moderate. The weighted kappa coefficient for both techniques was 0.88 (P
< 0.001). The Kendall’s W coefficient of the circumferential
extent of PVR, regurgitation volume, regurgitation fraction, and the
effective regurgitant orifice area was 0.285 (P<0.005). TEE
and angiography had strong consistency in the grading (using the VARC-3
criteria) of PVR during TAVR. TEE was a potential diagnostic tool for
classifying PVR.
Relation of Endokan (ESM-1) Serum Levels with Patient Characteristics and Morphological Features of Uterine Fibroids: A Case-control Study.
Authors: BAŞKIR İNCİ , Özyer Şebnem
Published: April 2022

Objectives: This study aimed to compare the serum endocan levels of
patients with uterine fibroids and the healthy control group. Design: A
case-control study was designed. Setting: A tertiary referential
university hospital. Population or Sample: The study was conducted with
130 women (uterine fibroid group, n= 65, control group, n= 65) aged
between 30 and 45. Methods: Serum endocan levels were determined in the
study and control groups using by ELISA method. The number of uterine
fibroids was identified, and the volume of uterine fibroids was
calculated with ellipsoid formula by ultrasonography. Main Outcome
Measures: The primary outcome parameter is serum endocan levels in
patients with uterine fibroids and healthy control groups. Secondly, it
is aimed to determine the distribution of serum endocan level of
patients according to uterine fibroid number, volume and clinical
presentation. Results: The mean serum endocan level of patient with
uterine fibroid was 145.18 ± 169.86 pg/mL, it was 88.94 ± 54.21 pg/mL in
the control group (p=0.016). According to Roc analysis, cut-off value of
endocan level for uterine fibroid was determined as ≥ 133.1 pg/mL. For
the cut-off value of 133.1 pg/mL; sensitivity was 36.92%, specificity
was 89.23%, positive predictive value was 77.40% and negative
predictive value was 58.60%. Above this cut-off value, a 4.8-fold
increased significant risk (OR) for uterine fibroid was detected.
Conclusion: Serum endocan levels were found to be higher in women with
uterine fibroids compared to the control group, so endocan may be
considered as a significant serum marker.
The Phlebology of the past century, before the 2000 technological�age
Authors: Ricci Stefano
Published: April 2022

"Modern" Phlebology was born and developed during the second half of the last century. Some fundamental stages are indicated, above all prevailing the therapy of varicose veins, based on chemical methods (sclerotherapy) or surgical (stripping), without neglecting the progress of pathophysiological knowledge.
With the passage of the century, Phlebology seems to be under a strong influence from technology, both at the diagnostic and therapeutic level. However, it does not seem that this development has led to real progress, but rather to make this specialty (still to be explored) more complex, but also less accurate.