Navigation Links Research Articles

WEB-SITE DESIGN (BEHAVIORAL + EDUCATIONAL) TO HELP AUTISUM CHILDRENDISORDER

Autism is a condition in which children have difficulties interacting with others or exhibit differences in how they interact with people. Children with Autism Spectrum Disorder (ASD) may respond well to web-based learning because computers can offer features such as repetition, visual stimuli, and independent interactions that appeal to them. However, there have been limited studies on websites (behavioral and educational), especially outside of institutional settings. The aim of this research is to assess the effectiveness of interactive digital programs used to teach individuals with learning difficulties, tailored to their capabilities and needs. Modern technology has provided interactive and educational opportunities through picture books. This research involves designing an educational website for children with autism, including a program to teach them basic concepts necessary for daily life, such as the Arabic alphabet, to enable them to form complete words and, consequently, complete sentences. Additionally, the program teaches numbers, enabling children to count and perform arithmetic problems such as counting money and telling time. The main interface page displays eight images that change every seven seconds automatically or via navigation links on the right and left sides of the image. A six-page website was designed, covering topics such as what autism is, symptoms, diagnosis, and more. Web technologies were utilized in the website design, with HTML as the primary language. To analyze some aspects of this study's results, the use of the computer screen is intended to capture the autistic child's attention, helping them remain in one place and stay focused on the screen for as long as possible. If a mother or female teacher can keep a child engaged with the screen for 5-10 minutes, it is considered a significant achievement.

Hypermedia-driven RESTful API for digital twins of the built environment

Core domains to establish digital twins of the built environment are Building Information Modeling (BIM), Geographic Information System (GIS) and Internet of Things (IoT). RESTful Application Programming Interfaces (APIs) of these domains allow easy access to the digital twin. While multiple information models are reasonable since the focus of these domains is distinct, interoperability becomes a challenge. Therefore, in this paper we propose a hypermedia-driven RESTful API for digital twins of the built environment. While the GIS and IoT interfaces are covered by established standards, we define a RESTful interface for Industry Foundation Classes (IFC) models of the BIM domain. The APIs are interconnected with a federated approach though hypermedia navigation links. An evaluation by two use cases – a planning model and a structural health monitoring application – shows that the API can be used to navigate through the models crossing seamlessly the scope of the domains and overcoming barriers of interoperability.

MedEase+ - A Healthcare System

Abstract: India is a very populous nation, recently surpassing China and Russia. According to the World Health Organization data from 2019, India had approximately 1.45 doctors per 1,000 people. Due to this difference in ratio, the issues related to soft flow of hospital management are on inclining graph. Therefore, the introduction of project MedEase+ comes into light. The purpose of this project is to implement a proper healthcare management system integrating all the basic functionalities powered by an Artificial Intelligent chat bot that is capable of having a very organic conversation with the user and solving their queries using knowledge base. The knowledge base is a collection of real-time data that is pre-processed using bag of words to prepare it for additional processing. The data is collected in a JSON format where Natural Language Understanding (NLU) comes into picture. The chat bot has the ability to offer navigation links based on the user's requests. Moreover, it has the ability to suggest seeking medical advice or taking any necessary instant action. And it also offers diagnostics information in advance. Furthermore, this project provides a robust web application using Django framework to carry out the functionalities and services of both hospital administration and user engagement.

The challenges of integrating signposting into general practice: qualitative stakeholder perspectives on care navigation and social prescribing in primary care

BackgroundA national policy focus in England to address general practice workforce issues has led to a commitment to employ significant numbers of non-general practitioner (GP) roles to redistribute workload. This paper focuses on two such roles: the care navigation (CN) and social prescribing link worker (SPLW) roles, which both aim to introduce ‘active signposting’ into primary care, to direct patients to the right professional/services at the right time and free up GP time. There is a lack of research exploring staff views of how these roles are being planned and operationalised into general practice and how signposting is being integrated into primary care.MethodsThe design uses in-depth qualitative methods to explore a wide range of stakeholder staff views. We generated a purposive sample of 34 respondents who took part in 17 semi-structured interviews and one focus group (service leads, role holders and host general practice staff). We analysed data using a Template Analysis approach.ResultsThree key themes highlight the challenges of operationalising signposting into general practice: 1) role perception – signposting was made challenging by the way both roles were perceived by others (e.g. among the public, patients and general practice staff) and highlighted inherent tensions in the expressed aims of the policy of active signposting; 2) role preparedness – a lack of training meant that some receptionist staff felt unprepared to take on the CN role as expected and raised patient safety issues; for SPLW staff, training affected the consistency of service offer across an area; 3) integration and co-ordination of roles – a lack of planning and co-ordination across components of the health and care system challenged the success of integrating signposting into general practice.ConclusionsThis study provides new insights from staff stakeholder perspectives into the challenges of integrating signposting into general practice, and highlights key factors affecting the success of signposting in practice. Clarity of role purpose and remit (including resolving tensions inherent the dual aims of ‘active signposting’), appropriate training and skill development for role holders and adequate communication and engagement between stakeholders/partnership working across services, are required to enable successful integration of signposting into general practice.

Disability and access to courts: Assessing the accessibility of U.S. federal judiciary homepages thirty years after the ADA

Using basic accessibility standards, the presence or absence of essential usability features, and site accessibility statements, this study evaluates the accessibility of the home pages of the federal judiciary — those of the U.S. district, Appellate and specialty courts, the Administrative Office of U.S. Courts (AO), the Federal Judicial Center (FJC), and the main homepage of PACER, the federal judiciary’s e-filing and e-records access system. Software evaluations reveal detected instances of a narrow set of accessibility issues, including scripts with no accompanying functional text, images/server-side image maps with no text equivalents/descriptors, and inaccessible forms. Manual evaluations of Web sites show a high proportion (about 67 percent) of the home pages provided skip navigation links, whereas smaller proportions provided direct or indirect links to accessibility information — about 15 percent and 12 percent, respectively, as well as controls for manipulating font size (about 12 percent). Notably, a sizeable proportion (about 45 percent) of home pages provided direct or indirect links to a “BrowseAloud” explanation and download page, apparently in lieu of information on accessibility. Finally, content analysis of existing Web site accessibility pages and policy statements show a high degree of variation, with some being exceptionally detailed and informative, and some less so.

Book Review: Don't Make Me Think, Revisited.

Book Review: <i>Don't Make Me Think, Revisited</i>.

Semantic Table-of-Contents for Efficient Web Screen Reading.

Navigating back-and-forth between segments in webpages is well-known to be an arduous endeavor for blind screen-reader users, due to the serial nature of content navigation coupled with the inconsistent usage of accessibility enhancing features such as WAI-ARIA landmarks and skip navigation links by web developers. Without these supporting features, navigating modern webpages that typically contain thousands of HTML elements in their DOMs, is both tedious and cumbersome for blind screen-reader users. Existing approaches to improve non-visual navigation efficiency typically propose 'one-size-fits-all' solutions that do not accommodate the personal needs and preferences of screen-reader users. To fill this void, in this paper, we present sTag, a browser extension embodying a semi-automatic method that enables users to easily create their own Table Of Contents (TOC) for any webpage by simply 'tagging' their preferred 'semantically-meaningful' segments (e.g., search results, filter options, forms, menus, etc.) while navigating the webpage. This way, all subsequent accesses to these segments can be made via the generated TOC that is made instantly accessible via a special shortcut or a repurposed mouse/touchpad action. As tags in sTag are attached to the abstract semantic segments instead of actual DOM nodes in the webpage, sTag can automatically generate equivalent TOCs for other similar webpages, without requiring the users to duplicate their tagging efforts from scratch in these webpages. An evaluation with 15 blind screen-reader users revealed that sTag significantly reduced the content-navigation time and effort compared to those with a state-of-the-art solution.

Evaluating Web and Mobile User Interfaces With Semiotics: An Empirical Study

Computer interface signs, such as navigational links, thumbnails, small images, command buttons, symbols, icons, etc., which serve as communication artifacts between designers/systems and users, constitute an under-researched area. To design and evaluate intuitive interface signs, the Semiotic Interface Sign Design and Evaluation (SIDE) framework was developed. The aim of this study is to test the framework's applicability to evaluate web and mobile user interfaces. To that end, two empirical user studies were conducted among a total of 86 practitioners (n1 = 58, n2 = 28). The results show that the SIDE framework helps identify unique usability problems, such as the intuitiveness of interface signs in terms of their referential meaning, which would not have been detected with traditional heuristic evaluation methods. The paper increases our understanding of the intuitive nature of interface signs of web and mobile interfaces, and of the practical use of intuitive signs.

Performance evaluation of neural network TEC forecasting models over equatorial low-latitude Indian GNSS station

Global Positioning System (GPS) services could be improved through prediction of ionospheric delays for satellite-based radio signals. With respect to latitude, longitude, local time, season, solar cycle and geomagnetic activity the Total Electron Content (TEC) have significant variations in both time and space. These temporal and spatial TEC variations driven by interplanetary space weather conditions such as solar and geomagnetic activities can degrade the communication and navigation links of GPS. Hence, in this paper, performance of TEC forecasting models based on Neural Networks (NN) have been evaluated to forecast (1-h ahead) ionospheric TEC over equatorial low latitude Bengaluru (12.97∘N,77.59∘E), Global Navigation Satellite System (GNSS) station, India. The VTEC data is collected for 2009–2016 (8 years) during current 24th solar cycle. The input space for the NN models comprise the solar Extreme UV flux, F10.7 proxy, a geomagnetic planetary A index (AP) index, sunspot number (SSN), disturbance storm time (DST) index, solar wind speed (Vsw), solar wind proton density (Np), Interplanetary Magnetic Field (IMF Bz). The performance of NN based TEC forecast models and International Reference Ionosphere, IRI-2016 global TEC model has evaluated during testing period, 2016. The NN based model driven by all the inputs, which is a NN unified model (NNunq) has shown better accuracy with Mean Absolute Error (MAE) of 3.15 TECU, Mean Square Deviation (MSD) of 16.8 and Mean Absolute Percentage Error (MAPE) of 19.8% and is 1–25% more accurate than the other NN based TEC forecast models (NN1, NN2 and NN3) and IRI-2016 model. NNunq model has less Root Mean Square Error (RMSE) value 3.8 TECU and highest goodness-of-fit (R2) with 0.85. The experimental results imply that NNunq/NN1 model forecasts ionospheric TEC accurately across equatorial low-latitude GNSS station and IRI-2016 model performance is necessarily improved as its forecast accuracy is limited to 69–70%.

Differential received power measurements over off-body links for obstruction-resilient pedestrian navigation

Abstract In this paper, we aim at improving pedestrian navigation experience based on standard narrow-band wireless technologies and simple radio metrics. The proposed solution takes benefits from body shadowing effects traditionally experienced at body-worn devices, for instance over off-body radio links with respect to fixed elements of infrastructure. The main idea is to infer relative angular information between the carrying body's heading and the received signal's direction of arrival. For this purpose, we consider differential received power measurements with judiciously placed on-body nodes. In comparison with related state-of-the-art contributions, a much lighter on-the-fly self-calibration procedure is made possible, based on the full-scale dynamics of the observed power measurements. We also describe a new algorithm that jointly estimates the body's absolute position and orientation, while benefiting from the body's movement continuity over time. The overall solution is validated by means of field experiments with IEEE 802.15.4-compliant devices operating at 2.4 GHz. Overall, the system is shown to be resilient, not only against self-shadowing effects generated by carrying bodies, but also against occasional obstructions caused by moving pedestrians in the vicinity (e.g., in crowded environments).

Improving youth mental health supports in Canada.

[See related article at [www.cmaj.ca/lookup/doi/10.1503/cmaj.180277][2]][2] KEY POINTS From the Welcome to Ontario Settlement website ( ), there is a navigation link for mental health services next to the link for emergency services (<https://settlement.org/ontario/health/

Cost‐effective and novel regional navigation system using HEO/GEO and GEO/IGS Constellations

Current navigation satellite systems (Global Positioning System (GPS), GLObal'naya NAvigatsionnaya Sputnikovaya Sistema (GLONASS) and BeiDou-2) have enabled quality of life improvements on a global scale. The applications include in the fields of transportation, military, aviation and security etc. Annual business market value of Global Navigation Satellite System user equipment and related components has been estimated at billions of US dollars. To reap the benefits maximally, various countries are developing their Regional Navigation Satellite Systems (RNSSs). Independent RNSS guarantees uninterrupted and reliable services with an advantage of the customised coverage. This study presents the design of two constellation models, including a Highly Elliptical Orbit/Geostationary Orbit (HEO/GEO) and a Geostationary Orbit/Inclined Geosynchronous (GEO/IGS) constellation for Pakistan's regional navigation system. The performance analysis of the navigation ability of designed constellations is carried out by analysing various parameters such as number of satellites, Dilution of Precision and navigation accuracy in a constrained environment and comparing these parameters with the GPS using dynamic simulations. Navigation link budget of both constellations is theoretically calculated, verified and compared with that of the GPS. Parametric analysis proposes that HEO/GEO and GEO/IGS orbit-based constellations can be adopted as replacement of the GPS for independent navigation within Pakistan.

A Semantic Analysis of the Learner’s Disorientation

Learning systems are dedicated for learning about a particular area organized through non-linear documents. Therefore, it is always useful to recognize the state of knowledge and the navigation behaviour of a learner in order to evaluate customize and adapt the learning process. In this paper, we aim to make a semantic analysis of the learner’s navigation during his apprenticeship in hypermedia content. The main reason of this analysis is to identify the browsing behaviour of a learner with the current course. We assume that if the semantic distance between the domain concepts of the documents (or pages) that follow each other in the navigation of a learner is great, then this reflects the unstructured navigation behaviour and interprets that the learner is disoriented. This type of behaviour could be due to the poor organization of the content and the bad structuring of the course. Indeed, this analysis will allow to the tutor, to identify the disoriented learners and help them, and to the course author, to specify the causes to restructure and to deepen the analysis of the existing content and the navigation links between the parts of the course.

Towards user–intuitive web interface sign design and evaluation: A semiotic framework

Although signs like navigation links, small images, buttons and thumbnails are important elements of web user interfaces, they are often poorly understood. Based on data gathered over a 3-year period (2011-2013) making use of observations in a usability testing lab, by expert review and by structured and semi-structured interviewing users, we developed a Semiotic Interface sign Design and Evaluation (SIDE) framework, consisting of five semiotic layers: syntactic, pragmatic, social, environment and semantic. The framework includes an extended set of determinants and heuristics, based on four empirical studies that help practitioners design and evaluate intuitive interface signs that can be accurately interpreted by users with less effort. Find the underlying features of users' interpretations of web interface signs.Discover the semiotic features to design and evaluation of web interface signs.Propose a semiotic framework for user-intuitive interface sign design and evaluation.A set of semiotic heuristics for user-intuitive interface sign design is proposed.

What is the meaning of a news link?

This paper investigates the meaning of news links in the context of a qualitative description of links on the home pages of six online news sites. Links are analyzed according to the following taxonomy: who is saying what, where, when, and to what purpose. This 5-Ws method for analyzing links yields four meanings: navigation, commercial, social, and citation. It is argued that the meaning of news links, while theoretically infinite, actually lies within the boundaries of these four meanings. Opportunities to use computational tools to analyze large datasets of news links are discussed in the context of a journalism tool (Jot), the author and colleagues are developing. Issues raised by this taxonomy of news links are several, but two in particular are highlighted for discussion: (1) the role of navigation links in determining the form of news; and (2) the fact that opportunities to share content via social links invariably are outsourced to social media companies such as Facebook and Twitter.

농업정보사이트 사용성 테스트 사례연구 - A 사이트를 중심으로 -

This article describes the process involved in usability testing a agricultural information Web site. In addition to determining the goals and requirements for the agricultural information Web site, a user and task analysis was conducted for defining the its user base and the types of tasks which users might be performing at the site. Usability testing methods with close observation and in-depth interviews provided fresh insights about how users are interacting with the agricultural information Web interface as they approach various information seeking tasks. This study uncovered problems related to unclear terminology, improper interface, location for navigational links, need for context sensitive help, built-in redundancy, and clear and consistent navigation.

An assessment of a semiotic framework for evaluating user-intuitive Web interface signs

A semiotic framework [Semiotic Interface sign Design and Evaluation (SIDE)] was developed to help designers to deal with user-intuitive interface signs. Examples of signs are small images, navigational links, buttons and thumbnails, which users make use of when interacting with Web UIs. This paper assesses the SIDE framework on the quality of the evaluation of interface signs, and the contributions of the framework as perceived by evaluators. Two empirical user studies were carried out, involving 23 participants. Data were collected via interviews, problem-solving assignments and feedback questionnaires, and analyzed quantitatively and qualitatively. The study shows that the evaluation of using the SIDE framework leads to acceptable score on quality metrics; and the subjects evaluate the framework's ease-of-use, contribution, and usage in practice positively. The SIDE framework is applicable to design and evaluate interface signs and contributes to the improvement in understanding the intuitive nature of interface signs.

Design and Realization of ECP Dynamic Navigation Based on .NET

The E-learning has penetrated into people's life, and has become an important learning way. Because there is no uniform development platform, which leads to resource sharing is poor; developers have to carry a lot of repeated work, so it is necessary to construct the ECP. To construct unified e-learning platform, need to consider its commonness and individuality, and e-learning home reflects the most prominent. Man-machine interface of the e-learning home is main navigation links, so this is to realize dynamic navigation as research object, designed and implemented the ECP dynamic navigation based on .NET Framework.

Effects of transionospheric signal decorrelation on Global Navigation Satellite Systems (GNSS) performance studied from irregularity dynamics around the northern crest of the EIA

AbstractTransionospheric satellite navigation links operate primarily at L band and are frequently subject to severe degradation of performances arising out of ionospheric irregularities. Various characteristic features of equatorial ionospheric irregularity bubbles like the drift velocity, characteristic velocity, decorrelation time, and decorrelation distance can be determined using spaced aerial measurements at VHF. These parameters measured at VHF from a station Calcutta situated near the northern crest of the Equatorial Ionization Anomaly (EIA) in the geophysically sensitive Indian longitude sector have been correlated with L band scintillation indices and GPS position accuracy parameters for identifying possible proxies to L band scintillations. Good correspondences have been observed between decorrelation times and distances at VHF with GPS S4 and Position Dilution of Precision during periods of GPS scintillations (S4 &gt; 0.3) for February–April 2011, August–October 2011, and February–April 2012. A functional relation has been developed between irregularity drift velocity measured at VHF and S4 at L band during February–April 2011, and validation of measured S4 and predicted values performed during August–October 2011 and February–April 2012. Significant improvement in L band scintillation prediction and consequent navigational accuracy will result using such relations derived from VHF irregularity measurements which are much simpler and inexpensive.

An Evaluation of Selective Foreign e-Bookshops

Following the methodology of case comparison, five major foreign e-Bookshops have been evaluated in the present study in the light of the needs and requirements of modern academic libraries. The evaluation criteria consisting of variables like Statement of Collection, Help Menu, Shopping Procedure, Payment Modes, Special Facility provided for Online Purchase, User Search Support, Details of Product, Navigation Links and Special Discounts has been used. The e-Bookshops have been ranked based on the marks obtained for the facilities provided and offered by them. http://dx.doi.org/ 10.14429/djlit.34.6255