159 research outputs found
Sensing, Storytelling, and Children: Putting Users in Control
Over the past few years, researchers have been exploring possibilities for
how embedded sensors can free children from traditional interaction
strategies with keyboards and mice. In this paper, we consider
sensing-based interactions from a child's perspective. That is, how
children decide to handle sensor data and affect state changes in their
environment. We will present this in the context of our research on
physical interactive storytelling environments for children. The system
architecture will be presented as well as an empirical study of the
technology's use with 18 children, ages 5-6. We will discuss the
challenges and opportunities for kindergarten children to become designers
of their own sensing-based interactions.
UMIACS-TR-2003-16
HCIL-TR-2003-0
The International Children's Digital Library: Viewing Digital Books Online
Reading books plays an important role in children's cognitive and social
development. However, many children do not have access to diverse collections of
books due to the limited resources of their community libraries. We have begun
to address this issue by creating a large-scale digital archive of children's
books, the International Children's Digital Library (ICDL). In this paper we
discuss our initial efforts in building the ICDL, concentrating on an informal
evaluation of innovative digital book readers.
Keywords
Children, digital libraries, books, book readers, graphical user interfaces.
(UMIACS-TR-2002-09)
(HCIL-TR-2002-03
A Collaborative Digital Library for Children: A Descriptive Study of Children's Collaborative Behavior and Dialogue
Over the last three years, we have been developing a collaborative digital
library interface where two children can collaborate using multiple mice on a
single computer to access multimedia information concerning animals. This
technology, called "SearchKids" leverages our lab's past work in co-present
collaborative zoomable interfaces for young children. This paper describes the
differences in children's collaborative behavior and dialogue when using two
different software conditions to search for animals in the digital library. In
this study, half the children had to "confirm" their collaborative activities
(e.g., both children had to click on a given area to move to that area). The
other half used an "independent" collaboration technique (e.g., just one mouse
click allows the pair to move to that area). The participants in this study were 98 second and third grade children (ages 7-9 years old) from a suburban public
elementary school in Prince George's County, Maryland. The children were
randomly divided into two groups and paired with a classmate of the same gender.
Each pair was asked to find as many items as possible from a list of 20 items
given a limit of 20 minutes. Sessions were video taped and the first and last
five minutes of each session were coded for discussion type and frequency. The
results of our study showed distinct differences between groups in how children
discussed their shared goals, collaborative tasks, and what outcomes they had in
successfully finding multimedia information in the digital library. These
findings suggest various ways educators might use and technologists might develop new collaborative technologies for learning.
Keywords
Children, Collaboration, Computer-Supported Collaborative Learning, Digital
Libraries, Educational Applications, Single Display Groupware (SDG), SearchKids,
Zoomable User Interfaces (ZUIs)
(UMIACS-TR-2002-46)
(HCIL-TR-2002-07
Powerful Bivariate Genome-Wide Association Analyses Suggest the SOX6 Gene Influencing Both Obesity and Osteoporosis Phenotypes in Males
Current genome-wide association studies (GWAS) are normally implemented in a univariate framework and analyze different phenotypes in isolation. This univariate approach ignores the potential genetic correlation between important disease traits. Hence this approach is difficult to detect pleiotropic genes, which may exist for obesity and osteoporosis, two common diseases of major public health importance that are closely correlated genetically. was previously found to be essential to both cartilage formation/chondrogenesis and obesity-related insulin resistance, suggesting the gene's dual role in both bone and fat. gene's importance in co-regulation of obesity and osteoporosis
Design and baseline characteristics of the finerenone in reducing cardiovascular mortality and morbidity in diabetic kidney disease trial
Background: Among people with diabetes, those with kidney disease have exceptionally high rates of cardiovascular (CV) morbidity and mortality and progression of their underlying kidney disease. Finerenone is a novel, nonsteroidal, selective mineralocorticoid receptor antagonist that has shown to reduce albuminuria in type 2 diabetes (T2D) patients with chronic kidney disease (CKD) while revealing only a low risk of hyperkalemia. However, the effect of finerenone on CV and renal outcomes has not yet been investigated in long-term trials.
Patients and Methods: The Finerenone in Reducing CV Mortality and Morbidity in Diabetic Kidney Disease (FIGARO-DKD) trial aims to assess the efficacy and safety of finerenone compared to placebo at reducing clinically important CV and renal outcomes in T2D patients with CKD. FIGARO-DKD is a randomized, double-blind, placebo-controlled, parallel-group, event-driven trial running in 47 countries with an expected duration of approximately 6 years. FIGARO-DKD randomized 7,437 patients with an estimated glomerular filtration rate >= 25 mL/min/1.73 m(2) and albuminuria (urinary albumin-to-creatinine ratio >= 30 to <= 5,000 mg/g). The study has at least 90% power to detect a 20% reduction in the risk of the primary outcome (overall two-sided significance level alpha = 0.05), the composite of time to first occurrence of CV death, nonfatal myocardial infarction, nonfatal stroke, or hospitalization for heart failure.
Conclusions: FIGARO-DKD will determine whether an optimally treated cohort of T2D patients with CKD at high risk of CV and renal events will experience cardiorenal benefits with the addition of finerenone to their treatment regimen.
Trial Registration: EudraCT number: 2015-000950-39; ClinicalTrials.gov identifier: NCT02545049
Large expert-curated database for benchmarking document similarity detection in biomedical literature search
Document recommendation systems for locating relevant literature have mostly relied on methods developed a decade ago. This is largely due to the lack of a large offline gold-standard benchmark of relevant documents that cover a variety of research fields such that newly developed literature search techniques can be compared, improved and translated into practice. To overcome this bottleneck, we have established the RElevant LIterature SearcH consortium consisting of more than 1500 scientists from 84 countries, who have collectively annotated the relevance of over 180 000 PubMed-listed articles with regard to their respective seed (input) article/s. The majority of annotations were contributed by highly experienced, original authors of the seed articles. The collected data cover 76% of all unique PubMed Medical Subject Headings descriptors. No systematic biases were observed across different experience levels, research fields or time spent on annotations. More importantly, annotations of the same document pairs contributed by different scientists were highly concordant. We further show that the three representative baseline methods used to generate recommended articles for evaluation (Okapi Best Matching 25, Term Frequency-Inverse Document Frequency and PubMed Related Articles) had similar overall performances. Additionally, we found that these methods each tend to produce distinct collections of recommended articles, suggesting that a hybrid method may be required to completely capture all relevant articles. The established database server located at https://relishdb.ict.griffith.edu.au is freely available for the downloading of annotation data and the blind testing of new methods. We expect that this benchmark will be useful for stimulating the development of new powerful techniques for title and title/abstract-based search engines for relevant articles in biomedical research.Peer reviewe
Physical Interactive Environments
Physical interactive environments can come in many forms: museum installations, amusement parks, experimental theaters, and more. Programming these environments has historically been done by adults, and children have been the visiting participants offered a few pre-created choices to explore. The goal of our research has been to develop programming tools for physical interactive environments that are appropriate for use by young children (ages 4-6). We have explored numerous design approaches over the past two years. Recently we began focusing on a “physical programming ” approach and developed a wizard-of-oz prototype for young children. This paper presents the motivation for this research, the evolution of our programming approach, and our recent explorations with children. Keywords Children, educational applications, programming by demonstration, ubiquitous computing, tangible computing, physical programming, physical interactive environments
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