Academic literature on the topic 'Web 2.0 and mobile Web 2.0'

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Journal articles on the topic "Web 2.0 and mobile Web 2.0"

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Covolo, Loredana, Daniela Zaniboni, Jacopo Roncali, Valentina Mapelli, Elisabetta Ceretti, and Umberto Gelatti. "Parents and Mobile Devices, from Theory to Practice: Comparison between Perception and Attitudes to 0–5 Year Old Children’s Use." International Journal of Environmental Research and Public Health 18, no. 7 (2021): 3440. http://dx.doi.org/10.3390/ijerph18073440.

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Pediatrics associations recommend avoiding the use of mobile devices (MDs) in children aged 0–2 years and limiting them to one hour per day for children aged 3–5 years. This study aimed to explore public risk perception on MDs use by children aged 0–5 years and attitudes of parents to children’s use. Participants were recruited on a voluntary basis by social media using a self-administered survey. The study included 3115 participants, most of whom were parents of children aged under 5 years (n = 1901; 61%). Most of the respondents (74%) considered that MDs use could be harmful for children’s health. The awareness on a correct use did not always translate into avoiding MDs use as recommended, especially in parents of children aged 0–2 years. Half of the sample (54%) received or sought information on risks related to MDs use. The most consulted information sources were the web (78%), and pediatricians in only 22% of cases. Understanding the determinants of parents’ risk perception and behavior is necessary to design effective family-based interventions in order to guide parents to a moderate and more careful use of MDs by their children. To do so, public health actions must aim to strengthen awareness about conscious use of MDs.
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Ranney, Megan L., Sarah K. Pittman, Isabelle Moseley, et al. "Cyberbullying Prevention for Adolescents: Iterative Qualitative Methods for Mobile Intervention Design." JMIR Formative Research 5, no. 8 (2021): e25900. http://dx.doi.org/10.2196/25900.

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Background Cybervictimization among adolescents is associated with multiple negative mental health consequences. Although pediatricians often screen for cyberbullying, validated and acceptable programs to reduce the frequency and impact of adolescent cybervictimization are lacking. Objective This study uses agile qualitative methods to refine and evaluate the acceptability of a mixed-modality intervention, initiated within the context of usual pediatric care, for adolescents with a history of cyberharassment and cyberbullying victimization. Methods Three groups of adolescents were successively recruited from an urban primary care clinic to participate in three consecutive iterations (1, 2, and 3) of the program, which consisted of a brief in-clinic intervention followed by 8 weeks of daily, automated SMS text messaging. After 2 weeks of messaging, iteration 1 (I1) participants completed semistructured interviews regarding intervention experiences. Participant feedback was evaluated via framework matrix analysis to guide changes to the program for iteration 2 (I2). Feedback from 2-week interviews of I2 participants was similarly used to improve the program before initiating iteration 3 (I3). Participants in all 3 iterations completed the interviews after completing the program (8 weeks). Daily response rates assessed participant engagement, and satisfaction questionnaires assessed acceptability. Results A total of 19 adolescents (aged 13-17 years) reporting past-year cybervictimization were enrolled: 7 in I1, 4 in I2, and 8 in I3. Demographic variables included the following: a mean age of 15 (SD 1.5) years; 58% (11/19) female, 42% (8/19) male, 63% (12/19) Hispanic, 37% (7/19) non-Hispanic, 79% (15/19) people of color, and 21% (4/19) White. A total of 73% (14/19) self-identified as having a low socioeconomic status, and 37% (7/19) self-identified as lesbian, gay, or bisexual. The average past 12-month cybervictimization score at baseline was 8.2 (SD 6.58; range 2-26). Participant feedback was used to iteratively refine intervention content and design. For example, participants in I1 recommended that the scope of the intervention be expanded to include web-based conflicts and drama, rather than narrowly focusing on cyberbullying prevention. On the basis of this feedback, the I2 content was shifted toward more general de-escalation skills and bystander empowerment. Overall, 88.34% (940/1064) of the daily queries sent to participants across all 3 iterations received a reply. Participant satisfaction improved considerably with each iteration; 0% (0/7) of I1 participants rated the overall quality of Intervention to Prevent Adolescent Cybervictimization with Text message as excellent, compared to 50% (2/4) of I2 participants and 86% (6/7) of I3 participants. Engagement also improved between the first and third iterations, with participants replying to 59.9% (235/392) of messages in I1, compared to 79.9% (358/488) of messages in I3. Conclusions This study shows the value of structured participant feedback gathered in an agile intervention refinement methodology for the development of a technology-based intervention targeting adolescents.
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Woodruff, Rebecca C., Ilana G. Raskind, Diane M. Harris, et al. "The dietary impact of introducing new retailers of fruits and vegetables into a community: results from a systematic review." Public Health Nutrition 21, no. 5 (2017): 981–91. http://dx.doi.org/10.1017/s1368980017003226.

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AbstractObjectiveTo investigate the potential dietary impact of the opening of new retailers of healthy foods.DesignSystematic review of the peer-reviewed research literature.SettingReferences published before November 2015 were retrieved from MEDLINE, EMBASE and Web of Science databases using keyword searches.SubjectsThe outcome of the review was change in fruit and vegetable consumption among adults.ResultsOf 3514 references retrieved, ninety-two articles were reviewed in full text, and twenty-three articles representing fifteen studies were included. Studies used post-test only (n 4), repeated cross-sectional (n 4) and repeated measures designs (n 7) to evaluate the dietary impact of supermarket (n 7), farmers’ market (n 4), produce stand (n 2) or mobile market (n 2) openings. Evidence of increased fruit and vegetable consumption was most consistent among adults who began shopping at the new retailer. Three of four repeated measures studies found modest, albeit not always statistically significant, increases in fruit and vegetable consumption (range 0·23–0·54 servings/d) at 6–12 months after baseline. Dietary change among residents of the broader community where the new retailer opened was less consistent.ConclusionsThe methodological quality of studies, including research designs, sampling methods, follow-up intervals and outcome measures, ranged widely. Future research should align methodologically with previous work to facilitate meta-analytic synthesis of results. Opening a new retailer may result in modest short-term increases in fruit and vegetable consumption among adults who choose to shop there, but the potential longer-term dietary impact on customers and its impact on the broader community remain unclear.
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Enricho Nkhoma, Dumisani, Charles Jenya Soko, Kondwani Joseph Banda, David Greenfield, Yu-Chuan (Jack) Li, and Usman Iqbal. "Impact of DSMES app interventions on medication adherence in type 2 diabetes mellitus: systematic review and meta-analysis." BMJ Health & Care Informatics 28, no. 1 (2021): e100291. http://dx.doi.org/10.1136/bmjhci-2020-100291.

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ObjectivesTo conduct systematic review and meta-analysis of interventional studies to investigate the impact of diabetes self-management education and support (DSMES) apps on adherence in patients with type 2 diabetes mellitus (T2D).MethodsPubMed, Embase, CENTRAL, Web of Science, Scopus and ProQuest were searched, in addition to references of identified articles and similar reviews. Experimental studies, reported in English, assessing DSMES app intervention’s impact on adherence and clinical outcomes of patients with T2D compared with usual care were included. Study bias was assessed using Cochrane Risk of Bias V.2.0 tool. Analysis plan involved narrative synthesis, moderator and meta-analysis.ResultsSix randomised controlled trials were included, involving 696 participants (average age 57.6 years, SD 10.59). Mobile apps were mostly used for imputing clinical data, dietary intake or physical activity, and transmitting information to the provider. At 3 months, DSMES apps proved effective in improving medication adherence (standardized mean difference (SMD)=0.393, 95% CI 0.17 to 0.61), glycated haemoglobin (HbA1c) (mean difference (MD)=−0.314, 95% CI −0.477 to –0.151) and Body Mass Index (BMI) (MD=−0.28, 95% CI −0.545 to –0.015). All pooled estimates had low heterogeneity (I2 0%). Four studies had moderate risk of bias while one each was judged to be low and high risks, respectively.ConclusionDSMES apps had significant small to moderate effects on medication adherence, HbA1c and BMI of patients with T2D compared with usual care. Apps were described as reliable, easy to use and convenient, though participants were required to be phone literate. Evidence comes from feasibility trials with generally moderate risk of bias. Larger trials with longer follow-up periods using theory-based interventions are required to improve current evidence.
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Stock, Sarah Jane, Lisa M. Wotherspoon, Kathleen Anne Boyd, et al. "Study protocol: quantitative fibronectin to help decision-making in women with symptoms of preterm labour (QUIDS) part 2, UK Prospective Cohort Study." BMJ Open 8, no. 4 (2018): e020795. http://dx.doi.org/10.1136/bmjopen-2017-020795.

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IntroductionThe aim of the QUIDS study is to develop a decision support tool for the management of women with symptoms and signs of preterm labour, based on a validated prognostic model using quantitative fetal fibronectin (fFN) concentration, in combination with clinical risk factors.Methods and analysisThe study will evaluate the Rapid fFN 10Q System (Hologic, Marlborough, Massachusetts, USA) which quantifies fFN in a vaginal swab. In QUIDS part 2, we will perform a prospective cohort study in at least eight UK consultant-led maternity units, in women with symptoms of preterm labour at 22+0 to 34+6 weeks gestation to externally validate a prognostic model developed in QUIDS part 1. The effects of quantitative fFN on anxiety will be assessed, and acceptability of the test and prognostic model will be evaluated in a subgroup of women and clinicians (n=30). The sample size is 1600 women (with estimated 96–192 events of preterm delivery within 7 days of testing). Clinicians will be informed of the qualitative fFN result (positive/negative) but be blinded to quantitative fFN result. Research midwives will collect outcome data from the maternal and neonatal clinical records. The final validated prognostic model will be presented as a mobile or web-based application.Ethics and disseminationThe study is funded by the National Institute of Healthcare Research Health Technology Assessment (HTA 14/32/01). It has been approved by the West of Scotland Research Ethics Committee (16/WS/0068).VersionProtocol V.2, Date 1 November 2016.Trial registration numberISRCTN41598423 and CPMS: 31277.
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Signal, Virginia, Melissa McLeod, James Stanley, et al. "A Mobile- and Web-Based Health Intervention Program for Diabetes and Prediabetes Self-Management (BetaMe/Melon): Process Evaluation Following a Randomized Controlled Trial." Journal of Medical Internet Research 22, no. 12 (2020): e19150. http://dx.doi.org/10.2196/19150.

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Background Technology-assisted self-management programs are increasingly recommended to patients with long-term conditions such as diabetes. However, there are a number of personal and external factors that affect patients’ abilities to engage with and effectively utilize such programs. A randomized controlled trial of a multi-modal online program for diabetes self-management (BetaMe/Melon) was conducted in a primary care setting, and a process evaluation was completed at the end of the study period. Objective This process evaluation aimed to examine the utilization patterns of BetaMe/Melon, identify which components participants found most (and least) useful, and identify areas of future improvement. Methods Process evaluation data were collected for intervention arm participants from 3 sources: (1) the mobile/web platform (to identify key usage patterns over the 16-week core program), (2) an online questionnaire completed during the final study assessment, and (3) interviews conducted with a subset of participants following the study period. Participants were classified as “actively engaged” if any usage data was recorded for the participant (in any week), and patterns were reported by age, gender, ethnicity, and diabetes/prediabetes status. The online questionnaire asked participants about the usefulness of the program and whether they would recommend BetaMe/Melon to others according to a 5-point Likert Scale. Of 23 invited participants, 18 participated in a digitally recorded, semistructured telephone interview. Interview data were thematically analyzed. Results Out of the 215 participants, 198 (92%) received an initial health coaching session, and 160 (74%) were actively engaged with the program at some point during the 16-week core program. Engagement varied by demographic, with women, younger participants, and ethnic majority populations having higher rates of engagement. Usage steadily declined from 50% at Week 0 to 23% at Week 15. Participants ranked component usefulness as education resources (63.7%), health coaches (59.2%), goal tracking (48.8%), and online peer support (42.1%). Although 53% agreed that the program was easy to use, 64% would recommend the program to others. Interview participants found BetaMe/Melon useful overall, with most identifying beneficial outcomes such as increased knowledge, behavioral changes, and weight loss. Barriers to engagement were program functionality, internet connectivity, incomplete delivery of all program components, and participant motivation. Participants suggested a range of improvements to the BetaMe/Melon program. Conclusions The program was generally well received by participants; active engagement was initially high, although it declined steadily. Maintaining participant engagement over time, individualizing programs, and addressing technical barriers are important to maximize potential health benefits from online diabetes self-management programs. Trial Registration Australian New Zealand Clinical Trial Registry ACTRN12617000549325; https://tinyurl.com/y622b27q
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Lokker, Cynthia, Rita Jezrawi, Itzhak Gabizon, et al. "Feasibility of a Web-Based Platform (Trial My App) to Efficiently Conduct Randomized Controlled Trials of mHealth Apps For Patients With Cardiovascular Risk Factors: Protocol For Evaluating an mHealth App for Hypertension." JMIR Research Protocols 10, no. 2 (2021): e26155. http://dx.doi.org/10.2196/26155.

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Background Mobile health (mHealth) interventions can improve health by improving cardiovascular risk factors, but their adoption in care by physicians and patients is untapped. Few mHealth apps have been evaluated in clinical trials, and due to the fast pace of technological development, those previously evaluated are often outdated by the time trial results are available. Given the rapid pace of change in this field, it is not feasible to rigorously evaluate mHealth apps with current methodologies. Objective The overall aim of this pilot study was to test the feasibility of using a web research platform called Trial My App to conduct efficient and rigorous web-based randomized controlled trials (RCTs) of mHealth apps relevant to patients with cardiovascular risk factors by evaluating an app that targets hypertension. Methods For this study, 200 participants with suboptimally controlled hypertension will be recruited through advertisements in newsletters, media, and the internet, as well as through referrals from their health care providers. Screening, consent, randomization, and collection of patient-important health confidence and self-management ability outcomes will be conducted online through the Trial My App research platform. Participants will be randomized into 2 groups: 100 that will use an mHealth app for tracking hypertension and 100 that will be considered as an educational control. All participants will complete questionnaires at 0, 1, 3 and 6 months after enrolment. A substudy to validate the method of blood pressure readings and the consistency of data entered through Trial My App will be conducted with 40 participants. Results The development of the Trial My App web platform has been completed. The creation of survey instruments has been completed in collaboration with our patient partners and advisory board. Recruitment is expected to begin in the first quarter of 2021; data collection and analysis are expected to be completed approximately 1 year after study commencement. Results will be disseminated through conferences and publications. The primary outcomes of this study include the feasibility of conducting an RCT using the Trial My App platform by reporting recruitment, retention, and completion statistics. We will validate app-entered data with a standard 7-day home blood pressure measurement method. Lastly, the pilot, nonblinded RCT will assess the effectiveness of the mHealth app in improving the control of hypertension compared with the control of hypertension in the educational control group. Conclusions This study will determine if it is feasible to use the Trial My App web-based platform to evaluate the effectiveness of mHealth apps for patients with cardiovascular risk factors. As more mHealth apps are evaluated in RCTs, patients will be able to select apps that meet their needs and physicians will be able to make evidence-based recommendations to their patients for apps aimed at improving cardiovascular health. Trial Registration ClinicalTrials.gov NCT04528654; https://clinicaltrials.gov/ct2/show/NCT04528654 International Registered Report Identifier (IRRID) PRR1-10.2196/26155
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Browne, Sarah, M.-Tahar Kechadi, Shane O'Donnell, et al. "Mobile Health Apps in Pediatric Obesity Treatment: Process Outcomes From a Feasibility Study of a Multicomponent Intervention." JMIR mHealth and uHealth 8, no. 7 (2020): e16925. http://dx.doi.org/10.2196/16925.

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Background Multicomponent family interventions underline current best practice in childhood obesity treatment. Mobile health (mHealth) adjuncts that address eating and physical activity behaviors have shown promise in clinical studies. Objective This study aimed to describe process methods for applying an mHealth intervention to reduce the rate of eating and monitor physical activity among children with obesity. Methods The study protocol was designed to incorporate 2 mHealth apps as an adjunct to usual care treatment for obesity. Children and adolescents (aged 9-16 years) with obesity (BMI ≥98th centile) were recruited in person from a weight management service at a tertiary health care center in the Republic of Ireland. Eligible participants and their parents received information leaflets, and informed consent and assent were signed. Participants completed 2 weeks of baseline testing, including behavioral and quality of life questionnaires, anthropometry, rate of eating by Mandolean, and physical activity level using a smart watch and the myBigO smartphone app. Thereafter, participants were randomized to the (1) intervention (usual clinical care+Mandolean training to reduce the rate of eating) or (2) control (usual clinical care) groups. Gender and age group (9.0-12.9 years and 13.0-16.9 years) stratifications were applied. At the end of a 4-week treatment period, participants repeated the 2-week testing period. Process evaluation measures included recruitment, study retention, fidelity parameters, acceptability, and user satisfaction. Results A total of 20 participants were enrolled in the study. A web-based randomization system assigned 8 participants to the intervention group and 12 participants to the control group. Attrition rates were higher among the participants in the intervention group (5/8, 63%) than those in the control group (3/12, 25%). Intervention participants undertook a median of 1.0 training meal using Mandolean (25th centile 0, 75th centile 9.3), which represented 19.2% of planned intervention exposure. Only 50% (9/18) of participants with smart watches logged physical activity data. Significant differences in psychosocial profile were observed at baseline between the groups. The Child Behavior Checklist (CBCL) mean total score was 71.7 (SD 3.1) in the intervention group vs 57.6 (SD 6.6) in the control group, t-test P<.001, and also different among those who completed the planned protocol compared with those who withdrew early (CBCL mean total score 59.0, SD 9.3, vs 67.9, SD 5.6, respectively; t-test P=.04). Conclusions A high early attrition rate was a key barrier to full study implementation. Perceived task burden in combination with behavioral issues may have contributed to attrition. Low exposure to the experimental intervention was explained by poor acceptability of Mandolean as a home-based tool for treatment. Self-monitoring using myBigO and the smartwatch was acceptable among this cohort. Further technical and usability studies are needed to improve adherence in our patient group in the tertiary setting.
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Itahriouan, Zakaria, Noura Aknin, Anouar Abtoy, and Kamal Eddine El Kadiri. "Building a Web-based IDE from Web 2. 0 perspective." International Journal of Computer Applications 96, no. 22 (2014): 46–50. http://dx.doi.org/10.5120/16930-7061.

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Qian, Jiafen, Tingting Wu, Meina Lv, et al. "The Value of Mobile Health in Improving Breastfeeding Outcomes Among Perinatal or Postpartum Women: Systematic Review and Meta-analysis of Randomized Controlled Trials." JMIR mHealth and uHealth 9, no. 7 (2021): e26098. http://dx.doi.org/10.2196/26098.

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Background Breastfeeding is essential for maintaining the health of mothers and babies. Breastfeeding can reduce the infection rate and mortality in newborns, and can reduce the chances of overweight and obesity in children and adolescents. For mothers, a longer duration of breastfeeding can reduce the risk of breast cancer, ovarian cancer, and type 2 diabetes. Although breastfeeding has many benefits, the global breastfeeding rate is low. With the progress of time, the popularity of mobile devices has increased rapidly, and interventions based on mobile health (mHealth) may have the potential to facilitate the improvement of the breastfeeding status. Objective The main objective of this study was to analyze the existing evidence to determine whether mHealth-based interventions can improve the status of breastfeeding. Methods We systematically searched multiple electronic databases (PubMed, Web of Science, The Cochrane Library, Embase, CNKI, WanFang, and Vip ) to identify eligible studies published from 1966 to October 29, 2020. Included studies were randomized controlled trials (RCTs) studying the influence of mHealth on breastfeeding. The Cochrane Collaboration Risk of Bias tool was used to examine the risk of publication bias. RevMan 5.3 was used to analyze the data. Results A total of 15 RCTs with a total sample size of 4366 participates met the inclusion criteria. Compared with usual care, interventions based on mHealth significantly increased the postpartum exclusive breastfeeding rate (odds ratio [OR] 3.18, 95% CI 2.20-4.59; P<.001), enhanced breastfeeding self-efficacy (mean difference [MD] 8.15, 95% CI 3.79-12.51; P=.002; I2=88%), reduced health problems in infants (OR 0.62, 95% CI 0.43-0.90; P=.01; I2=0%), and improved participants’ attitudes toward breastfeeding compared with usual care (MD 3.94, 95% CI 1.95-5.92; P<.001; I2=0%). There was no significant difference in the initiation of breastfeeding within an hour of birth between the intervention group and the usual care group (OR 1.26, 95% CI 0.55-2.90; P=.59). In addition, subgroup analysis was carried out according to different subjects and publication times. The results showed that the breastfeeding rate was not limited by the types of subjects. The breastfeeding rate based on mHealth at 1 month and 2 months after delivery did not change over the time of publication (2009 to 2020), and the breastfeeding rate based on mHealth at 3 months and 6 months after delivery gradually increased with time (2009 to 2020). Conclusions Interventions based on mHealth can significantly improve the rate of postpartum exclusive breastfeeding, breastfeeding efficacy, and participants’ attitudes toward breastfeeding, and reduce health problems in infants. Therefore, encouraging women to join the mHealth team is feasible, and breastfeeding-related information can be provided through simple measures, such as text messages, phone calls, and the internet, to improve the health of postpartum women and their babies.
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Dissertations / Theses on the topic "Web 2.0 and mobile Web 2.0"

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Zetterström, Johannes, and Johan Göras. "Intranät 2 : 0." Thesis, Halmstad University, Halmstad University, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-1645.

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<p>Den här uppsatsen redogör för en studie om hur intranät används i organisationerna Ericsson och KPMG och hur intranätets möjligheter att stödja organisationens verksamhet förändras i en Webb 2.0 miljö. Syftet med studien var att underlätta olika organisationers överväganden om att ta till sig och använda sig av en Webb 2.0 standard i deras intranät. Studien består av en teoretisk referensram som sedan kopplas ihop med de intervjuer vi genomfört som mynnar ut i olika förslag på hur intranätet kan förbättras med Webb 2.0. Den teoretiska referensramen behandlar litteratur och artiklar inom området intranät och Webb 2.0. Vi kom bland annat fram till i vår studie att båda dessa organisationers intranät knappt eller inte alls stödjer den tvärfunktionella kommunikation och sökningar på intranätet gav ofta alldeles för många träffar som resulterade i att personalen inte alltid fick tag i det material de var ute efter och vi visade på hur Webb 2.0 kan lösa många av de här problemen.</p>
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Cliquet, Grégoire. "Méthode d'innovation à l'ère du Web 2. 0." Paris, ENSAM, 2010. http://www.theses.fr/2010ENAM0037.

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Nos travaux de recherche portent sur l'innovation et plus particulièrement sur le rôle de l'information dans la conception de produits. Le Web 2. 0 repose sur la production de contenus par les internautes et constitue une source permanente et intarissable d'informations que les entreprises peuvent utiliser à des fins d'innovation, car si le Web a modifié les techniques de recherche d'informations et renforcé le travail de veille technologique, concurrentielle et commerciale, nous montrons que le Web 2. 0 permet une meilleure connaissance des attentes et des besoins des consommateurs. Nous proposons l'analyse qualitative et quantitative des informations produites ou relayées par les internautes sous l'angle de leur pertinence au regard d'une démarche d'innovation. Nos expérimentations portent tout d'abord sur l'étude des Signets Sociaux (Social Bookmarking), nous montrons que l'exploration de ces annuaires thématiques co-constitués offre une alternative significative pour la recherche d'informations. Nous proposons une typologie des participants à cette plateforme afin de faciliter la détection d'usagers experts ou influents dans un domaine en particulier. Notre étude des commentaires sur le site de vente en ligne « Amazon. Com », montre que les clients participent de l'innovation incrémentale des entreprises en formulant des critiques pertinentes et constructives. Nous proposons alors une méthode d'extraction puis d'analyse de ces commentaires qui s'intègre aux dispositifs de veille an amont du projet d'innovation. Enfin, nous formulons les bases d'une méthode d'innovation qui consiste à mettre en place une observation permanente du Web 2. 0 et dont l'objectif consiste à la production d'un document de référence destiné à orienter les innovations de l'entreprise : le « cahier des attentes »<br>Our research work is focused on innovation and more specifically on the role of information in the product's conception process. Web 2. 0 is quickly growing because contents are mostly generated by users and it represents now a wide and borderless source of information that can be used for innovation purposes. If Web improved information search techniques in technological and competitive surveys, we argue that Web 2. 0 allow a better knowledge of customers needs and expectations. We propose in this thesis a qualitative and quantitative analysis of information generated or relayed by Web 2. 0 users regarding their relevance into the innovation process. Our experiments deal with the study of Social Bookmarking and especially the Delicious. Com Web application that allows users to memorize and share their bookmarks' lists. We would show that regarding to the increasing volume of information indexed by search engines, exploring this co-constructed directory offers a significant improvement in Web information retrieval. We also work on the social aspect of social bookmarking by proposing a way to sort participants in order to detect expert or influent users on a particular subject. Our study related to users comments on Amazon. Com shows that customers are more and more involved into the innovation process of companies by providing them interesting and relevant comments about the product they bought. We therefore recommend meanings to extract then to analysis those customers feedbacks to improve the way that products are conceived. Finally, we define an innovation method that consists in setting up a permanent survey of Web 2. 0 activities then to produce a document named « expectations notes ». That could be used for directing the further innovation processes
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Bruyère, Sébastien. "L'Intelligence Compétitive 2. 0 pour le pilotage des projets e-Marketing." Toulon, 2010. https://theses.hal.science/tel-00597467/fr/.

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Ce projet de recherche appliquée a été initié afin d'optimiser la mesure et le pilotage de la performance e-Marketing dans un contexte évolutif lié aux mutations perpétuelles du Web (réseaux sociaux, Web 2. 0. . . ) et des modèles d‟affaires associés. Il vise à identifier des solutions organisationnelles et technologiques pour pallier aux difficultés rencontrées par l'équipe e-Marketing de l'agence interactive BleuRoy. Com (groupe HighCo) tout en optimisant l'efficacité et la rentabilité des actions menées pour ses clients. Pour ce faire, plusieurs recherches ont été conduites. Dans un premier temps et afin de faire le point sur le sujet, nous avons étudié les différentes notions potentielles sur lesquelles le projet repose. Mais face aux nombreuses définitions éparses et démarches proposées, nous avons utilisé la méthode de méta-analyse afin de synthétiser les résultats. Durant cette étude, nous avons étudié le concept de Web Analytics 2. 0 qui se veut être une composante de l'e-Marketing fournissant des techniques et des méthodes pour mesurer les différents vecteurs de communication en ligne. Celui-ci embarque partiellement la notion d'Intelligence Compétitive en se limitant aux aspects de Veille Concurrentielle pour expliquer les variations potentielles des indicateurs clés de performance reportés par les solutions de Web Analytics. Au moyen de la méthode observation participante, nous avons élaboré un état des lieux des techniques et des pratiques en dressant les différentes attentes du projet. A partir de l'ensemble, nous avons pu développer davantage l'Intelligence Compétitive pour l'e-Marketing à travers la proposition du modèle KIM (Knowledge Internet Marketing). L'ingénierie de projet nous a amené à concevoir la plateforme sur la base d'un logiciel Open Source de Web Analytics comportemental préalablement sélectionné au moyen de la méthode OSMM (Open Source Maturity Model) de Capgemini. Face à quelques difficultés pour appréhender les développements, nous avons intégré la méthode des Cas d'Utilisation en complément de l'étude fonctionnelle pour décrire, tester et documenter précisément les différents modules du dispositif d'Intelligence Compétitive à développer Suite à une fusion stratégique de l'entreprise, le projet voit son spectre fonctionnel évoluer et se doit d'appréhender de nouveaux métiers, de nouvelles fonctionnalités. La réorientation du projet est aujourd'hui envisagée notamment grâce à sa conceptualisation fondée sur la notion globale d'Intelligence Compétitive<br>This research project has been introduced to optimize the measure and the control of the e-marketing performance in an evolving context related to the Web constant changes (social networks, Web 2. 0. . . ) and associated business models. It aims at identifying organizational and technological solutions to overcome the difficulties encountered by the e-marketing team of the interactive agency BleuRoy. Com (group HighCo) while optimizing the efficiency and the profitability of the actions run for its customers. To this end, several investigations have been pursued. First of all and in order to review the whole subject, we studied the different possible notions on which the project has been based. Faced with the many definitions and approaches proposed, we have used the meta-analysis method for synthesizing the results. During this study, the concept of Web Analytics 2. 0 which is meant to be a component of the e-marketing providing techniques and methods for measuring the different on-line communication vectors has been analyzed. This one partially encloses the Competitive Intelligence notion by limiting itself to the Business Intelligence aspects to explain the possible variations of the key performance indicators reported by the Web Analytics solutions. By means of the participative observation method, we have provided a review of the techniques and practices by listing the different expectations of the project. From these different results, we have been in measure to develop more precisely the Competitive Intelligence for the e-marketing through the proposal of KIM (Knowledge Internet Marketing) model. The project engineering led us to design a platform on the basis of a behavioural Open Source software from Web Analytics previously selected by means of the Capgemini OSMM (Open Source Maturity Model) method. To overcome some difficulties in apprehending the developments, we have integrated the Using Cases method to complete the functional study in order to precisely describe, test and document the different modules of the Competitive Intelligence device to be developed. Further to the strategic merging of the company, the functional spectrum of the project is now evolving and the project implies new professions and functionalities. The project reorientation is now contemplated, including thanks to its conceptualization based on the general Competitive Intelligence notion
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Le, Bayon Simon. "Sociologie de la composition des collectifs web 2. 0 : le cas de la diaspora bretonne." Rennes 2, 2010. http://tel.archives-ouvertes.fr/tel-00551703/fr/.

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La diaspora bretonne offre un terrain fertile pour questionner la composition des collectifs web 2. 0. Nous faisons ici référence aux nouvelles formes de regroupements qui émergent avec le web mais que l'on aborde trop souvent en distinguant les problématiques sociales des problématiques techniques. En recourant aux diasporas, nous décentrons notre regard pour aborder ces collectifs selon un point de vue tout à la fois technique, social et cognitif. Dans ce travail, nous recourrons à la sociologie de la traduction et à la sociologie pragmatique pour construire une méthodologie basée sur l'analyse des traces numériques produites par les collectifs. Après avoir identifié au sein de la diaspora bretonne trois collectifs correspondants à nos critères, nous les avons analysé à l'aide de trois formats, afin d'identifier les médiateurs de différentes natures qui les composent. Nos résultats démontrent que les collectifs web sont des regroupements proliférants et hétérogènes. Loin d'homogénéiser les cultures ou les civilisations, les technologies web favorisent l'exploration et la combinaison. Les collectifs web détiennent une dynamique et un fonctionnement en proche qui favorisent l'innovation<br>The Breton diaspora is a prolific field to question the composition of web 2. 0 collectives. Web 2. 0 collectives refer to new types of assemblies that appears within the web. The problem is theses assemblies are only socially or technically questioned. Observing web collectives through diaspora is useful to construct a new point of view that embrace cognitive, social and technical approaches. With pragmatic sociology and the actor network theory we designed an original method to analyse the digital data produced by web collectives. We selected three collectives from the larger field of the breton diaspora, to analyse them with accuracy. The results show different kinds of mediators which composed web collectives. Far from creating homogeneity, technologies are introducing much more differences. Web collectives present a particular configuration of social, technical and cognitive elements to explore and innovate
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Petit, Olivier. "Modélisation de plate-forme collaborative orientée web 2. 0 pour outiller une démarche de story-telling." Troyes, 2010. http://www.theses.fr/2010TROY0007.

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Le Story-telling est une technique d’ingénierie des connaissances destinée à la modélisation de structures de connaissances, d’interactions et de documents narratifs. Les théories du récit font généralement une hypothèse d’existence d’une «histoire complète», préalable à l’analyse du récit qui en est l’inscription documentaire. Dans cette thèse, nous considérons que cette hypothèse est trop forte, et lui substituons l’hypothèse que les histoires se présentent comme des « fragments » progressivement composés au fil de l’eau. Ces travaux s’appuient sur la technologie RSS/Atom pour illustrer ce caractère fragmentaire de l’histoire. En nous basant sur la sémantique des cadres, des traitements linguistiques, le modèle du réseau narratif et différentes technique de visualisation de données, nous proposons le modèle ainsi que la plate-forme ReNaRSS (Réseau Narratif pour la gestion de fil RSS) permettant de modéliser et visualiser une histoire dynamique à partir des événements qui la composent. Bien que ciblée sur les fils RSS actuellement, ces travaux sont voués à pouvoir modéliser tout type de données événementielles temporelles<br>Story-telling is a knowledge engineering technique designed to model knowledge structures, interactions and narrative documents. The theories of narrative are generally assumed existence of a "complete history", a preliminary analysis of the narrative which is the registration document. In this thesis, we consider that this assumption is too strong, and we substitute the assumption that the stories are presented as "fragments" composed gradually in continuous flow. These works leans on the technology RSS / Atom to illustrate fragmentary nature of history. Based on the semantic frameworks, linguistic processing, the narrative network model and different narrative data visualization technique, we propose the model and the platform ReNaRSS (Narrative Network for managing RSS) to model and view a dynamic history from the events that compose it. Although focused on the RSS feeds, these works are dedicated to being able to model all types of temporal event data
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Lima, Tereza Cristina Batista de. "AÃÃo educativa e tecnologias digitais: AnÃlise sobre os saberes colaborativos." Universidade Federal do CearÃ, 2008. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=2545.

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Os programas de educaÃÃo a distÃncia que utilizam tecnologias digitais constituem possibilidades pedagÃgicas cada vez mais recorrentes no contexto educacional. Evidencia-se grande expansÃo de experiÃncias de ensino a distÃncia que complementam os sistemas convencionais, bem como o surgimento de formas hÃbridas de educaÃÃo que combinam atividades presenciais e a distÃncia que promovem o intercÃmbio e a integraÃÃo dos dois tipos de sistemas. As mÃdias digitais e as ferramentas da Web 2.0, por meio de plataformas colaborativas como o Moodle, possibilitam a comunicaÃÃo, interaÃÃo, colaboraÃÃo e formulaÃÃo coletiva dos conhecimentos, transformando os tradicionais papÃis de professores e alunos. Com base nesse cenÃrio, a pesquisa procurou identificar como as tecnologias digitais e as mediaÃÃes pedagÃgicas baseadas na co-autoria potencializam os saberes colaborativos - conhecimentos, habilidades e atitudes relacionadas à colaboraÃÃo - fundamentais para a aprendizagem ao longo da vida. A abordagem teÃrica procurou explorar teorias e pesquisas sobre colaboraÃÃo e aprendizagem colaborativa; definir o conceito de saberes colaborativos e eleger, entre estes, cinco mais fortemente aplicÃveis à dinÃmica colaborativa em programas de EAD: autonomia, comunicaÃÃo e compartilhamento, exploraÃÃo e resoluÃÃo de conflitos, engajamento colaborativo e verificaÃÃo e sÃntese. Buscou ainda reaver aspectos centrais da utilizaÃÃo das tecnologias digitais na EAD, como as caracterÃsticas das mÃdias digitais, integraÃÃo multimÃdia, hipertexto, interatividade, interfaces e Web 2.0. A pesquisa teÃrica destacou os aspectos teÃricos que norteiam o conceito de mediaÃÃo pedagÃgica como diÃlogo, elaboraÃÃo simbÃlica e cultural e possibilidade de comunicaÃÃo e crÃtica. A investigaÃÃo abordou os modelos de comunicaÃÃo relativos ao uso das tecnologias na educaÃÃo, com destaque para o modelo EMEREC e os conceitos de autoria e co-autoria nos processos de ensino e aprendizagem. A pesquisa de campo foi realizada na disciplina EducaÃÃo a DistÃncia, da FACED- UFC, de agosto a dezembro de 2007, utilizando a metodologia da etnografia virtual. A anÃlise de dados està organizada em trÃs categorias: saberes colaborativos, tecnologias digitais e mediaÃÃes pedagÃgicas esteadas na autoria e co-autoria. Os resultados indicam que os saberes colaborativos sÃo vivenciados e aprimorados em contexto de utilizaÃÃo de tecnologias digitais e de mediaÃÃes pedagÃgica baseadas na autoria e na co-autoria, que precisam ser aprimoradas. Indicam, tambÃm, que as ferramentas da web 2.0, ainda que insuficientemente exploradas, favorecem e induzem Ãs prÃticas colaborativas e que as mediaÃÃes pedagÃgicas baseadas na autoria e co-autoria requerem grande investimento na formaÃÃo docente. A pesquisa sugere a definiÃÃo de polÃticas pÃblicas em gestÃo e financiamento, acesso à internet das diversas camadas sociais e formaÃÃo docente voltada para aÃÃes crÃticas e autÃnomas.<br>The programs of distance learning that use digital technologies constitute pedagogical possibilities more and more frequent on the educational context. It is verified great expansion of experiences in distance learning that complement conventional systems, as well as the upcoming of hybrid forms of education that combine presence activities and distance activities, which promote the interchange e the integration of both systems. The digital media and the Web 2.0 tools, by collaborative platforms such as Moodle, possibilitate the communication, interactivity, collaboration and collective formulation of knowledge, transforming the traditional roles of teachers and students. Having this scenario as basis, the research tried to identify how the digital technologies and the pedagogical mediations based on co-authorship increases the collaborative knowledges - knowledge, abilities and attitudes related to collaboration - fundamental to life long learning. The theoretical approach tried to explore theories and researches about collaboration and collaborative learning; tried to define the concept of collaborative knowledge and to elect, among these, the five concepts most applicable to the collaborative dynamic in distance learning programs (EAD): autonomy, communication and sharing, exploration and resolution of conflicts, collaborative engagement and verification and synthesis. This study searched yet to retrieve central aspects of the use of digital technologies in EAD, such as digital media characteristics, hypertext, interactivity, interfaces and Web 2.0. The theoretical research highlighted the theoretic aspects that guide the concept of pedagogic mediation such as dialogue, symbolic and cultural elaboration and possibility of communication and critic. The investigation approached the relative communication models to the use of technologies in education, highlighting the EMEREC model and the concepts of authorship and co-authorship in the processes of distance teaching and learning. The field research was done in the discipline of Distance Education, of FACED-UFC, from august to December 2007, using the methodology of virtual ethnography. The data analysis is organized in three categories: collaborative knowledges, digital technologies and pedagogical mediations supported by authorship and co-authorship. The results indicate that the collaborative knowledges are lived and improved in context of use of digital technologies and pedagogical mediations based in authorship and co-authorship, which need to be improved. Indicate also that the Web 2.0 tools, although insufficiently explored, favors and induces collaborative practices and that pedagogical mediations based in authorship and co-authorship require great investment in docent formation. The research proposes the definition of public politics in management and financing, access to internet to different social segments and teacher formation towards critic and autonomy actions.
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Baginski, James Daniel. "Friending the Feds: Governmental Social Media Use in the Neoliberal Era." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1397573978.

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Diallo, Mamadou Diouma. "Les applications socio-techniques du web 2. 0 : entre évolutions technologiques et (r)évolution des pratiques éditoriales dans les champs de l'information et du journalisme." Nice, 2012. http://www.theses.fr/2012NICE2037.

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Jackson, Carolyn M. Rhodes Dent. "The high school library web site scaffolding information literacy skills /." Normal, Ill. : Illinois State University, 2006. http://proquest.umi.com/pqdweb?index=0&did=1276395781&SrchMode=1&sid=2&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1202154031&clientId=43838.

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Thesis (Ed. D.)--Illinois State University, 2006.<br>Title from title page screen, viewed on February 4, 2008. Dissertation Committee: Dent Rhodes (chair), Tom Crumpler, Cheri Toledo, Bobb Darnell. Includes bibliographical references (leaves 107-113) and abstract. Also available in print.
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Lahouij, Mohamed Anouar. "Changement politique à l'ère du numérique : fragilité et promesse dans les pays en transition démocratique." Toulouse 3, 2014. http://www.theses.fr/2014TOU30144.

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Cette étude porte sur la transition politique et son interaction avec la communication religieuse en Tunisie, dans la nouvelle sphère publique virtuelle suite à la suppression de la censure d'Internet en 2011. Notre enquête a révélé qu'Internet et en particulier les réseaux sociaux portent différentes significations positives et libératrices pour la participation politique en ligne. Les répondants ont décrit comment Internet et notamment Facebook ont permis aux citoyens tunisiens de participer à la vie politique, de briser l'isolement et la censure, de diffuser des informations et d'exprimer leur indignation. Par ailleurs, malgré les fractures qui sont apparues sur la sphère publique virtuelle, l'engagement politique a été soutenu par l'utilisation d'autres plates-formes technologiques par les cyberactivistes et l'adoption simultanée des deux formes de participation politique en ligne et hors ligne. Néanmoins, on constate la volonté d'une certaine partie de la population tunisienne de créer une nouvelle ère de l'islam politique qui a pour objectif de transmettre une image des partis religieux comme une force religieuse modérée et libérale au public occidental<br>This study deals with the political transition and its interaction with the political transition in Tunisia in the new virtual public sphere following the abolition of internet censorship in 2011. Our inquiry revealed that the internet and in particular social networks carry different positive and liberating significances for the political participation online. The respondents showed how the Internet and especially Facebook permitted the Tunisian citizens to participate to the political life, to break the isolation of censorship, to disseminate information and to express their indignation. Despite the divides which surfaced on the public virtual sphere, the political commitment was sustained by the use of other technological platforms by cyber activists and the simultaneous adoption of two forms of political commitment online and off-line. However, it was found that a certain part of the Tunisian population is willing to create a new era of the political Islam which aims to transmit an image of the religious parties as a religious moderate and liberal force to the western audience
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Books on the topic "Web 2.0 and mobile Web 2.0"

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Xin xi hua 2. 0 +: Yun ji suan shi dai de xin xi hua ti xi. Dian zi gong ye chu ban she, 2013.

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Pro Web 2.0 Mashups: Remixing Data and Web Services. Apress, 2008.

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David, Albert, Nicolas Monomakhoff, Amir Hasnaoui, Sébastien Damart, Luisa Zibara, and Sonia Abdennadher Cheffi. L’impact du Web 2.0 sur les organisations. Edited by Sébastien Tran. Springer Paris, 2013. http://dx.doi.org/10.1007/978-2-8178-0433-0.

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Golding, Paul. Next Generation Wireless Applications: Creating Mobile Applications in a Web 2. 0 and Mobile 2. 0 World. Wiley & Sons, Incorporated, John, 2008.

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Beyond 3G - Bringing Networks, Terminals and the Web Together: LTE, WiMAX, IMS, 4G Devices and the Mobile Web 2. 0. Wiley & Sons, Incorporated, John, 2011.

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Sauter, Martin. Beyond 3G - Bringing Networks, Terminals and the Web Together: LTE, WiMAX, IMS, 4G Devices and the Mobile Web 2. 0. Wiley & Sons, Incorporated, John, 2011.

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Sauter, Martin. Beyond 3G - Bringing Networks, Terminals and the Web Together: LTE, WiMAX, IMS, 4G Devices and the Mobile Web 2. 0. Wiley & Sons, Incorporated, John, 2008.

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Jones, Bradley L. Web 2. 0 Heroes: Interviews with 20 Web 2. 0 Influencers. Wiley & Sons, Incorporated, John, 2011.

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Jones, Bradley L. Web 2. 0 Heroes: Interviews with 20 Web 2. 0 Influencers. Wiley & Sons, Incorporated, John, 2010.

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Hult and Huckin. MyCompLab 2. 0 Web Site. Pearson Education, Limited, 2005.

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Book chapters on the topic "Web 2.0 and mobile Web 2.0"

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Agrawal, Abha. "EndNote Web." In EndNote 1 - 2 - 3 Easy! Springer US, 2009. http://dx.doi.org/10.1007/978-0-387-95901-6_11.

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Hoogland, Christine, Khaled Mostaguir, and Ron D. Appel. "2-DE Databases on the World Wide Web." In The Proteomics Protocols Handbook. Humana Press, 2005. http://dx.doi.org/10.1385/1-59259-890-0:259.

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Lipscomb, Stephen Leon. "From 2-Web IFS to 2-Simplex IFS 2-Space and the 1-Sphere." In Springer Monographs in Mathematics. Springer New York, 2008. http://dx.doi.org/10.1007/978-0-387-85494-6_13.

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Lipscomb, Stephen Leon. "From 3-Web IFS to 3-Simplex IFS 3-Space and the 2-Sphere." In Springer Monographs in Mathematics. Springer New York, 2008. http://dx.doi.org/10.1007/978-0-387-85494-6_14.

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Huss, Dave, and David Plotkin. "Web WizardCreating and Posting Images on the Web." In Adobe Photoshop Lightroom 2. Elsevier, 2008. http://dx.doi.org/10.1016/b978-0-240-52133-6.00009-2.

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"Web Analytics and Web Mining." In Practical Text Mining and Statistical Analysis for Non-structured Text Data Applications. Elsevier, 2012. http://dx.doi.org/10.1016/b978-0-12-386979-1.00040-2.

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MANNAN, D. "Web Links." In Lees' Loss Prevention in the Process Industries. Elsevier, 2005. http://dx.doi.org/10.1016/b978-075067555-0/50157-2.

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"Web Sites." In Achieve Lasting Process Improvement. Elsevier, 2002. http://dx.doi.org/10.1016/b978-0-12-449984-3.50022-2.

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Dalziel, Henry. "Web Technologies." In How to Hack and Defend your Website in Three Hours. Elsevier, 2015. http://dx.doi.org/10.1016/b978-0-12-802732-5.00001-2.

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Patnaikuni, Shrinivasan, and Sachin R. Gengaje. "Probabilistic, syntactic, and semantic reasoning using MEBN, OWL, and PCFG in healthcare." In Web Semantics. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-12-822468-7.00009-2.

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Conference papers on the topic "Web 2.0 and mobile Web 2.0"

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Liu, Fawang, Pinghui Zhuang, and Kevin Burrage. "Stability and Convergence of Implicit Numerical Methods for a Class of Fractional Advection-Dispersion Models." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47071.

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In this paper, a class of fractional advection-dispersion models (FADM) is investigated. These models include five fractional advection-dispersion models: the immobile, mobile/immobile time FADM with a temporal fractional derivative 0 &lt; γ &lt; 1, the space FADM with skewness, both the time and space FADM and the time fractional advection-diffusion-wave model with damping with index 1 &lt; γ &lt; 2. They describe nonlocal dependence on either time or space, or both, to explain the development of anomalous dispersion. These equations can be used to simulate regional-scale anomalous dispersion with heavy tails, for example, the solute transport in watershed catchments and rivers. We propose computationally effective implicit numerical methods for these FADM. The stability and convergence of the implicit numerical methods are analyzed and compared systematically. Finally, some results are given to demonstrate the effectiveness of our theoretical analysis.
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Bae, Sang Won, Tammy Chung, Brian Suffoletto, et al. "Mobile Phone Sensor-Based Detection of Subjective Cannabis “High” in Young Adults: A Feasibility Study in Real-World Settings." In 2020 Virtual Scientific Meeting of the Research Society on Marijuana. Research Society on Marijuana, 2021. http://dx.doi.org/10.26828/cannabis.2021.01.000.31.

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Aim: Acute cannabis intoxication can impair motor skills and cognitive functions. Given possible impairment related to acute cannabis intoxication, we explored whether mobile phone-based sensors (e.g., GPS, text/phone logs) can detect episodes of acute cannabis intoxication (subjective “high” state) as self-reported in natural environments by young adults. Methods: Young adults (ages 18-25), who reported cannabis use at least twice per week, were recruited by research registry and Craigslist to participate in a mobile phone data collection study (up to 30 days) in Pittsburgh, PA (2017-2019). Participants responded to fixed time phone surveys (3 times/day) and self-initiated reports of cannabis use (start/stop time, rating of subjective high: 0-10, 10=very high). Our mobile AWARE app continuously collected phone sensor data, which was segmented into 5-minute windows for analysis. We built and tested multiple machine learning classifiers (e.g., Support Vector Machine, Light Gradient Boosting Machine (LGBM)) on training (60%), validation (20%), and test (20%) datasets to determine which classifier performed best in distinguishing subjective cannabis “high” (rating=1-10) vs “not high” (rating=0). To minimize the influence of imbalanced data on model performance in the training dataset, we used both over-sampling with Synthetic Minority Over-sampling Technique (SMOTE) and random under-sampling of the majority class, so that both classes (“high”, “not-high”) had the same number of training samples. We also tested the importance of time features (i.e., day of week, time of day: morning, afternoon, evening) relative to smartphone sensor data only on model performance, since time features alone might predict “routines” in cannabis use. Results: Young adults (N=57; 58% female; mean age=19.82 [SD=1.76]; 71.92% White, 15.78% Black, 12.28% Asian and other ethnicity) reported 451 episodes of cannabis use, mean subjective high rating=3.77 (SD=2.64). The sensor dataset included 1,648 datapoints representing reports of subjective ""high"" and 60,580 data points representing ""not high"" reports. For the two time-based features only model, the LGBM classifier had 91% accuracy in detecting subjective cannabis intoxication (vs “not-high”) in the test dataset (Area Under the Curve [AUC]=0.75). Combining smartphone sensor data with the two time-based features (day of week, time of day) improved model performance, with 95% accuracy (AUC=0.93), indicating that smartphone features contribute unique information, and that time features further improve model performance in detecting rating of subjective cannabis ""high"". Among the 102 phone sensor features entered into the analyses (smartphone sensors + time model), some of the most important features (the top 2 were the time features) included travel (GPS: smaller travel radius within a day when feeling ""high”), movement (e.g., smaller number of activity changes when feeling ""high”), and communication/sociability (e.g., increased phone usage interactions, greater voice and noise level around individuals). Conclusion: Results from this proof-of-concept study indicate the feasibility of using phone sensors to detect effects of cannabis intoxication in the natural environment in a population-based model among young adults. Mobile phone sensors show promise for automated and continuous detection of cannabis use in daily life in a sample of young adults, with potential implications for triggering the delivery of just-in-time interventions to minimize marijuana-related harm.
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Ostrovskii, Alexander, Alexander Ostrovskii, Vyacheslav Lobanov, et al. "MOORED PROFILER OBSERVATIONS OF SUBMESOSCALE COLD-CORE EDDIES IN PETER THE GREAT BAY OF THE EAST/JAPAN SEA IN LATE WINTER." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b4316525691.

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Submesoscale cold-core (T &lt; 0°C) eddies were observed near the shelf break in Peter the Great Bay of the East/Japan Sea in March 2010. The observations were carried out at the moored automatic mobile profiler Aqualog station. The profiling was as frequent as every hour allowing us to obtain data with high temporal resolution. Aqualog delivered vertical profiles of ocean current velocity, acoustic backscatter at 2 MHz, temperature, and salinity between the depths of 20 m and 105 m. Below the profiling range, the InterOcean S4 current meter with temperature and salinity sensors was mounted on the mooring line. Above the profiling range, the RBR XR420 CTD logger with dissolved oxygen, chlorophyll-a fluorescence, and turbidity sensors was also mounted on the mooring line. Additionally we used the data of ship-born CTD casts, the satellite-born imagery and scatterometery, and the coastal weather station records. The data analysis suggests that the cold-core submesoscale eddies play an important role in supplying the densest water (σθ &gt; 27.24 kg/m3) from the northern part of Peter the Great Bay to the shelf break zone where it cascades downward into the deep northern basin of the Sea. The volume of the densest water in an eddy, according to our rough estimate, is 0.5-1 km³. At the sea shelf, the densest water is richer in oxygen by 0.4 ml/l than surrounding water. It also contains much more suspended particles brought by the rivers.
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4

Ostrovskii, Alexander, Alexander Ostrovskii, Vyacheslav Lobanov, et al. "MOORED PROFILER OBSERVATIONS OF SUBMESOSCALE COLD-CORE EDDIES IN PETER THE GREAT BAY OF THE EAST/JAPAN SEA IN LATE WINTER." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b937b64aa12.88436521.

Full text
Abstract:
Submesoscale cold-core (T &lt; 0°C) eddies were observed near the shelf break in Peter the Great Bay of the East/Japan Sea in March 2010. The observations were carried out at the moored automatic mobile profiler Aqualog station. The profiling was as frequent as every hour allowing us to obtain data with high temporal resolution. Aqualog delivered vertical profiles of ocean current velocity, acoustic backscatter at 2 MHz, temperature, and salinity between the depths of 20 m and 105 m. Below the profiling range, the InterOcean S4 current meter with temperature and salinity sensors was mounted on the mooring line. Above the profiling range, the RBR XR420 CTD logger with dissolved oxygen, chlorophyll-a fluorescence, and turbidity sensors was also mounted on the mooring line. Additionally we used the data of ship-born CTD casts, the satellite-born imagery and scatterometery, and the coastal weather station records. The data analysis suggests that the cold-core submesoscale eddies play an important role in supplying the densest water (σθ &gt; 27.24 kg/m3) from the northern part of Peter the Great Bay to the shelf break zone where it cascades downward into the deep northern basin of the Sea. The volume of the densest water in an eddy, according to our rough estimate, is 0.5-1 km³. At the sea shelf, the densest water is richer in oxygen by 0.4 ml/l than surrounding water. It also contains much more suspended particles brought by the rivers.
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5

Schu¨ler, Marco, Frank Zehnder, Bernhard Weigand, Jens von Wolfersdorf, and Sven Olaf Neumann. "The Effect of Side Wall Mass Extraction on Pressure Loss and Heat Transfer of a Ribbed Rectangular Two-Pass Internal Cooling Channel." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59481.

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Abstract:
Gas turbine blades are often cooled by using combined internal and external cooling methods, where for internal cooling purposes usually serpentine passages are applied. In order to optimize the design of these serpentine passages it is inevitable to know the influence of mass extraction due to film cooling holes, dust holes or due to side walls for feeding successive cooling channels as for the trailing edge on the internal cooling performance. Therefore, the objective of the present study was to analyse the influence of side wall mass extraction on pressure loss and heat transfer distribution in a two-pass internal cooling channel representing a cooling scheme with flow towards the trailing edge. The investigated rectangular two-pass channel consisted of an inlet and outlet duct with a height-to-width ratio of H/W = 2 connected by a 180° sharp bend. The tip-to-web distance was kept constant at Wel/W = 1. The mass extraction was realized using several circular holes in the outlet pass side wall. Two geometric configurations were investigated: A configuration with mass extraction solely in the outlet pass, and a configuration with mass extraction in the bend region and outlet pass. The extracted mass flow rate was 0%, 10%, and 20% of the inlet channel mass flow. Spatially resolved heat transfer distributions were obtained using the transient thermochromic liquid crystal technique. Pressure losses were determined in separate experiments by local static pressure measurements. Furthermore, a computational study was performed solving the Reynolds-Averaged Navier-Stokes equations (RANS method) using the commercial Finite-Volume solver FLUENT. The numerical grids were generated using the hybrid grid generator CENTAUR. Three different turbulence models were considered: the realizable k-ε model with two-layer wall treatment, the k-ω-SST model, and the v2-f model. The experimental data of the investigation of side wall ejection showed that the heat transfer in the bend region slightly increased when the ejection was in operation, while the heat transfer in the section of the outlet channel with side wall ejection was nearly not affected. After this section a decrease in heat transfer was observed which can be attributed to the decreased mainstream mass flow rate.
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