scholarly journals Do smartphone application preferences change over time or vary by demographics? A longitudinal study using behavioral data

2021 ◽  
Author(s):  
Douglas A. Parry ◽  
Craig Jeffrey Robb Sewall
Keyword(s):  
Digital Media ◽  
Mobile Application ◽  
Smartphone Application ◽  
Descriptive Study ◽  
Demographic Characteristics ◽  
Full Extent ◽  
Media Usage ◽  
Quantitative Descriptive ◽  
Over Time ◽  
Longitudinal Dataset

Smartphones afford users the ability to select their own custom mobile application repertoires through the installation of a nearly endless array of applications. Acknowledging the need for increased attention to the description of digital media usage, this paper reports a quantitative descriptive study that investigates the types of applications that people commonly use, the amount of time they spend with these applications, the application combinations that they construct, the consistency of these combinations over time, and differences in these outcomes by three demographic characteristics. Using a longitudinal dataset that includes behavioural data collected via data donations, the study identifies key application adoption patterns and shows that peoples’ mobile application repertoires are concentrated around a subset of popular applications that is relatively consistent over time. However, within this subset there is substantial diversity between applications and between individuals. These results suggest that quantifying smartphone usage with a single metric—total aggregate usage duration (i.e., screentime)—is unlikely to capture the full extent and diversity of media that users curate for themselves as part of their mobile application repertoires.

Virtual Friendships: A Study of Digital Media Usage and Empathy

2011 ◽  
Author(s):  
Alexander Spradlin ◽  
John P. Bunce ◽  
L. Mark Carrier ◽  
Larry D. Rosen
Keyword(s):  
Digital Media ◽  
Media Usage

The Economic Impact of the Covid-19 Outbreak : Evidence from Indonesia

2020 ◽  
Vol 5 (3) ◽  
Author(s):  
Ahmad Ulil Albab Al Umar ◽  
Herninda Pitaloka ◽  
Eka Resmi Hartati ◽  
Dessy Fitria
Keyword(s):  
Stock Market ◽  
Economic Impact ◽  
Case Studies ◽  
Capital Market ◽  
Descriptive Study ◽  
Current Case ◽  
Quantitative Descriptive Study ◽  
Quantitative Descriptive ◽  
The Capital Market

This research aims to analyses the economic impact of the COVID 19 outbreak toward the stock market in Indonesia. This research is a quantitative descriptive study by collecting various sources from journals and current case studies about COVID 19 outbreak. The technique of collecting data uses quotations and related news. The results in this study are COVID-19 pandemic outbreak has a pretty bad impact on the capital market, where the occurrence of this pandemic has affected many investors in making investment actions that are very influential on the Stock Market.  

scholarly journals Proof-of-Prestige: A Useful Work Reward System for Unverifiable Tasks

2021 ◽  
Vol 21 (2) ◽  
pp. 1-27
Author(s):  
Michał Król ◽  
Alberto Sonnino ◽  
Mustafa Al-Bassam ◽  
Argyrios G. Tasiopoulos ◽  
Etienne Rivière ◽  
...  
Keyword(s):  
Mobile Application ◽  
Reward System ◽  
Fair Exchange ◽  
Content Dissemination ◽  
Collusion Attacks ◽  
Computational Overhead ◽  
Smart Contract ◽  
Memory Footprint ◽  
Vast Range ◽  
Over Time

As cryptographic tokens and altcoins are increasingly being built to serve as utility tokens, the notion of useful work consensus protocols is becoming ever more important. With useful work consensus protocols, users get rewards after they have carried out some specific tasks useful for the network. While in some cases the proof of some utility or service can be provided, the majority of tasks are impossible to verify reliably. To deal with such cases, we design “Proof-of-Prestige” (PoP)—a reward system that can run directly on Proof-of-Stake (PoS) blockchains or as a smart contract on top of Proof-of-Work (PoW) blockchains. PoP introduces “prestige,” which is a volatile resource that, in contrast to coins, regenerates over time. Prestige can be gained by performing useful work, spent when benefiting from services, and directly translates to users minting power. Our scheme allows us to reliably reward decentralized workers while keeping the system free for the end-users. PoP is resistant against Sybil and collusion attacks and can be used with a vast range of unverifiable tasks. We build a simulator to assess the cryptoeconomic behavior of the system and deploy a full prototype of a content dissemination platform rewarding its participants. We implement the blockchain component on both Ethereum (PoW) and Cosmos (PoS), provide a mobile application, and connect it with our scheme with a negligible memory footprint. Finally, we adapt a fair exchange protocol allowing us to atomically exchange files for rewards also in scenarios where not all the parties have Internet connectivity. Our evaluation shows that even for large Ethereum traces, PoP introduces sub-millisecond computational overhead for miners in Cosmos and less than 0.013$ smart contract invocation cost for users in Ethereum.

Changing Attitudes Toward Women: A Longitudinal Study of College Students

1981 ◽  
Vol 5 (4) ◽  
pp. 591-594 ◽  
Author(s):  
Claire Etaugh ◽  
Deborah Bohn Spandikow
Keyword(s):  
College Students ◽  
College Attendance ◽  
Demographic Characteristics ◽  
Attitudes Toward Women ◽  
Female Students ◽  
Cross Sectional ◽  
Intraindividual Change ◽  
Changing Attitudes ◽  
Shift Hypothesis ◽  
Over Time

Cross sectional data indicate that college students show more liberal attitudes toward women with increasing years of college attendance. This shift may reflect intraindividual change or simply differential dropout of more traditionally oriented students. To study this problem longitudinally, the Attitudes Toward Women Scale was administered to 430 university students who had completed the same questionnaire 2 years earlier. Attitudes toward women generally became more liberal over time for both male and female students, supporting the intraindividual shift hypothesis. For both sexes, attitudes involving women's educational-vocational rights became more liberal than those involving women's marital and maternal responsibilities. Socio-demographic characteristics of subjects who became more traditional were compared with those of subjects who became more liberal.

scholarly journals Assessment of pain during rest and during activities in the postoperative period of cardiac surgery

2014 ◽  
Vol 22 (1) ◽  
pp. 136-143 ◽  
Author(s):  
Larissa Coelho de Mello ◽  
Silvio Fernando Castro Rosatti ◽  
Priscilla Hortense
Keyword(s):  
Cardiac Surgery ◽  
Postoperative Pain ◽  
Postoperative Complications ◽  
Postoperative Period ◽  
Pain Assessment ◽  
Descriptive Study ◽  
Deep Breathing ◽  
Cohort Design ◽  
Surgical Recovery ◽  
Over Time

OBJECTIVE: to assess the intensity and site of pain after Cardiac Surgery through sternotomy during rest and while performing five activities. METHOD: descriptive study with a prospective cohort design. A total of 48 individuals participated in the study. A Multidimensional Scale for Pain Assessment was used. RESULTS: postoperative pain from cardiac surgery was moderate during rest and decreased over time. Pain was also moderate during activities performed on the 1st and 2nd postoperative days and decreased from the 3rd postoperative day, with the exception of coughing, which diminished only on the 6th postoperative day. Coughing, turning over, deep breathing and rest are presented in decreased order of intensity. The region of the sternum was the most frequently reported site of pain. CONCLUSION: the assessment of pain in the individuals who underwent cardiac surgery during rest and during activities is extremely important to adapt management and avoid postoperative complications and delayed surgical recovery.

scholarly journals A Novel Educational Smartphone Application for Cognitively Healthy Seniors: A Pilot Study

2021 ◽  
Vol 18 (12) ◽  
pp. 6601
Author(s):  
Blanka Klimova ◽  
Lukas Sanda
Keyword(s):  
Pilot Study ◽  
Mobile Application ◽  
Empirical Studies ◽  
Well Being ◽  
Smartphone Application ◽  
Assessment Tools ◽  
Pedagogical Practice ◽  
Older Individuals ◽  
Individual Needs ◽  
Instructional Manual

Modern technologies surround people every day, including seniors. The aim of this pilot study was to create a maximally user-friendly mobile application in order to meet older users’ individual needs. The research sample consisted of 13 older individuals at the age of 55+ years with a mean age of 67 years, living in the Czech Republic. The key assessment tools of this pilot study were the developed application and usability testing. The findings confirmed that the newly developed mobile application for teaching English met the needs of cognitively healthy seniors, and was acceptable and feasible. In addition, it indicated what technical (e.g., visual interface or easy navigation) and pedagogical (e.g., an instructional manual or adjusting to seniors’ learning pace or clear instructions) aspects should be strictly followed when designing such an educational smartphone application. In addition, the authors of this pilot study provide several implications for pedagogical practice. Further research should include more empirical studies aimed at the exploration of educational mobile applications for older generation groups with respect to meeting their individual needs in order to enhance their overall well-being. However, such studies are, nowadays, very rare.

Brain Gain or Brain Waste? Horizontal, Vertical, and Full Job-Education Mismatch and Wage Progression among Skilled Immigrant Men in Canada

2018 ◽  
Vol 53 (3) ◽  
pp. 646-670 ◽  
Author(s):  
Rupa Banerjee ◽  
Anil Verma ◽  
Tingting Zhang
Keyword(s):  
Wage Gap ◽  
Racial Minority ◽  
Survey Period ◽  
Brain Gain ◽  
Wage Effects ◽  
Different Types ◽  
Skilled Immigrant ◽  
Immigrant Men ◽  
Over Time ◽  
Longitudinal Dataset

This study examines the incidence and wage effects of vertical, horizontal, and full job-education mismatch for high skilled immigrant and native-born men over a six-year period, using a Canadian longitudinal dataset. Immigrants (particularly racial minorities immigrants) are more likely to be fully mismatched than white native-born Canadians. Full mismatch lowers initial wages, especially for racial minority immigrants. Full mismatch accelerates immigrants' wage growth slightly over time, but this is not enough to narrow the immigrant wage gap over the six-year survey period. The results highlight the importance of disaggregating the different types of job-education mismatch experienced by immigrants.

Changes in consumption of food away from home and intakes of energy and other nutrients among US working-age adults, 2005–2014

2017 ◽  
Vol 20 (18) ◽  
pp. 3238-3246 ◽  
Author(s):  
Jessica E Todd
Keyword(s):  
Multivariate Regression ◽  
Energy Content ◽  
Saturated Fat ◽  
Demographic Characteristics ◽  
Fast Foods ◽  
Food Away From Home ◽  
Health And Nutrition ◽  
Percentage Points ◽  
Working Age ◽  
Over Time

AbstractObjectiveTo document changes in consumption of food away from home (FAFH) and intakes of selected nutrients by working-age adults between 2005–06 and 2013–14, covering the most recent recessionary period and recovery.DesignMeans were compared across survey rounds relative to 2005–06. Multivariate regression was used to account for changes in demographic characteristics over time.SettingNational Health and Nutrition Examination Survey (NHANES), 2005–2014.SubjectsWorking-age adults born in 1951–80 (n 12 129) and adolescents and young adults born in 1981–90 (n 5197) who reported day 1 dietary intake data.ResultsApproximately 34 % of energy consumed by working-age adults came from FAFH (14 % from fast foods) in 2005–06. Levels of FAFH consumption were lowest in 2009–10, at 28 and 11 % of energy from FAFH and fast foods, respectively. Percentage of energy from fast foods was 1·9 percentage points higher in 2013–14. Percentage of energy from saturated fat and total mg of cholesterol consumed were lower in 2009–14, while intake of fibre was higher in 2011–14. At-home foods had less saturated fat and more fibre in 2009–14. The greater the percentage of energy from FAFH in the day, the greater the intakes of fat and cholesterol. Percentage of energy from FAFH was highest among those born in 1981–90 and lowest among those born in 1951–60.ConclusionsFAFH is a significant source of energy, fat and cholesterol among working-age adults. Menu labelling may lower FAFH’s energy content and make it easier for consumers to choose more healthful items.

scholarly journals CME Article: Perceptions of Acupuncture and Acupressure by Anesthesia Providers: A Quantitative Descriptive Study

2016 ◽  
Vol 28 (2) ◽  
pp. 79-86 ◽  
Author(s):  
Amanda C. Faircloth ◽  
Arkadiy Dubovoy ◽  
Chuck Biddle ◽  
Diane Dodd-McCue ◽  
John F. Butterworth
Keyword(s):  
Descriptive Study ◽  
Anesthesia Providers ◽  
Quantitative Descriptive Study ◽  
Quantitative Descriptive

scholarly journals The accuration of parallel radiograph technique in measurement of alveolar crest resorption on removable orthodontic treatment

2014 ◽  
Vol 26 (1) ◽  
Author(s):  
Aisa Nirmala Setyani ◽  
Belly Sam ◽  
Elih Syiarudin
Keyword(s):  
Orthodontic Treatment ◽  
Accurate Result ◽  
Descriptive Study ◽  
Hard Tissue ◽  
Normal Range ◽  
Alveolar Crest ◽  
Quantitative Descriptive Study ◽  
Quantitative Descriptive ◽  
Parallel Technique

Introduction: The parallel radiograph technique produce the accurate measurement so that it can be used to detect the small changing in the hard tissue. In the orthodontic treatment, the force which is given when the activation make the resorption of alveolar crest happen. The purpose of this study is to obtain data of the photo using radiograph periapikal parallel technique and the resorption of alveolar crest in orthodontic treatment during 3 weeks after the first activation. Methods: This quantitative descriptive study used the accidental sampling methode. The data was collected by using parallel radiograpy photo when the first aktivation of coil component in the removable orthodontic patient and 3 weeks after it. Then it was digitilized using the camera and proceeded by Easydent program. After that the tooth lenght of the first and second photos was counted. While to measure the a lveolar crest used the matematic proyection. Results: The result showed p>0,05 which meaned there was no significant differences of the tooth lenght between the first and second photos. The resorption of alveolar crest in this removable orthodontic treatment after the force was given during 3 weeks, was 0, 69899 mm. Conclusion: The parallel radiography technique which is used in this study could be used in the measurement of such condition with reccurent time and the accurate result, and the resorption of the alveolar crest in the insisive central mandibule effected by removable orthodontic treatment was in normal range.

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