2,499 research outputs found

    Improving Student Engagement: Use of the Interactive Whiteboard as an Instructional Tool to Improve Engagement and Behavior in the Junior High School Classroom

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    This study examined the impact of interactive whiteboard use on student engagement and appropriate at-task behaviors of junior high school students. Two hundred twenty-six students at two public schools in northeast Florida were observed during the second quarter of the school year. Data were collected using an at-task checklist, and students completed an attitude survey regarding their perception of their own engagement and enjoyment with interactive whiteboard use. Significant differences were noted in student behavior between instruction without interactive whiteboard use and instruction with interactive whiteboard use. No significant correlations were found between the variables gender and ethnicity and improved student behavior. Results indicate that use of the interactive whiteboard as an instructional tool has a beneficial effect on student engagement in classroom lessons and leads to improved student behavior. Suggestions for further research are incorporated as part of the study results

    Perceptions of gambling marketing among young adults who gamble in Ireland

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    Gambling marketing, which has been reported to influence consumer perceptions and behavior, has attracted growing academic, public and policy interest. There are fewer qualitative studies with young adults however and no research has explored how gambling marketing is viewed by people in Ireland who gamble. One-to-one interviews were conducted with 18–34 year-olds in Ireland, with 8 considered low-risk (those scoring fewer than 3 on the Problem Gambling Severity Index [PGSI]) and 8 high-risk (those scoring 8 or more on the PGSI). Discussions were thematically analyzed. Participants reported high exposure to gambling marketing, most commonly on television and online. They were familiar with myriad gambling-related promotions, including new customer/sign-up offers, free or matched bets/spins, price offers and bonuses, time-limited bets and offers, risk-minimizing offers, jackpots, prizes, and loyalty/rewards schemes. Gambling marketing was thought to influence behavior by prompting participants to place a bet or take advantage of offers and promotions, with participants indicating they had or would bet or deposit more than intended to benefit from an offer or promotion. The findings provide insight into how young adults in Ireland perceive and respond to gambling industry marketing

    Relating the metatranscriptome and metagenome of the human gut

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    Although the composition of the human microbiome is now wellstudied, the microbiota’s \u3e8 million genes and their regulation remain largely uncharacterized. This knowledge gap is in part because of the difficulty of acquiring large numbers of samples amenable to functional studies of the microbiota. We conducted what is, to our knowledge, one of the first human microbiome studies in a well-phenotyped prospective cohort incorporating taxonomic, metagenomic, and metatranscriptomic profiling at multiple body sites using self-collected samples. Stool and saliva were provided by eight healthy subjects, with the former preserved by three different methods (freezing, ethanol, and RNAlater) to validate self-collection. Within-subject microbial species, gene, and transcript abundances were highly concordant across sampling methods, with only a small fraction of transcripts (\u3c5%) displaying between-method variation. Next, we investigated relationships between the oral and gut microbial communities, identifying a subset of abundant oral microbes that routinely survive transit to the gut, but with minimal transcriptional activity there. Finally, systematic comparison of the gut metagenome and metatranscriptome revealed that a substantial fraction (41%) of microbial transcripts were not differentially regulated relative to their genomic abundances. Of the remainder, consistently underexpressed pathways included sporulation and amino acid biosynthesis, whereas up-regulated pathways included ribosome biogenesis and methanogenesis. Across subjects, metatranscriptional profiles were significantly more individualized than DNA-level functional profiles, but less variable than microbial composition, indicative of subject-specific whole-community regulation. The results thus detail relationships between community genomic potential and gene expression in the gut, and establish the feasibility of metatranscriptomic investigations in subject-collected and shipped samples

    Targeting β-catenin in acute myeloid leukaemia: past, present, and future perspectives

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    Acute myeloid leukaemia (AML) is an aggressive disease of the bone marrow with a poor prognosis. Evidence suggests long established chemotherapeutic regimens used to treat AML are reaching the limits of their efficacy, necessitating the urgent development of novel targeted therapies. Canonical Wnt signalling is an evolutionary conserved cascade heavily implicated in normal developmental and disease processes in humans. For over 15 years it's been known that the central mediator of this pathway, β-catenin, is dysregulated in AML promoting the emergence, maintenance, and drug resistance of leukaemia stem cells (LSC). Yet, despite this knowledge, and subsequent studies demonstrating the therapeutic potential of targeting Wnt activity in haematological cancers, β-catenin inhibitors have not yet reached the clinic. The aim of this review is to summarise the current understanding regarding the role and mechanistic dysregulation of β-catenin in AML and assess the therapeutic merit of pharmacologically targeting this molecule, drawing on lessons from other disease contexts

    The Role of e-Cigarette Packaging as a Health Communications Tool: A Focus Group Study With Adolescents and Adults in England and Scotland

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    Introduction In the United Kingdom, e-cigarette and refill packaging must display a nicotine addiction warning. This study explored how this message is perceived, responses to alternative on-pack messages, and other options for using e-cigarette packaging to discourage youth and people who neither smoke nor use e-cigarettes while encouraging smokers to switch. Aims and Methods Between August and September 2022, 16 focus groups (n = 70) were conducted to explore these topics with adolescents (n = 31, aged 11–17 years) and adults (n = 39, nonsmokers, smokers that use e-cigarettes, smokers that do not use e-cigarettes) in England and Scotland. Results While several participants thought the current nicotine addiction warning could help increase awareness of nicotine addiction, most reported that it failed to capture attention and was not a deterrent. Alternative messages shown on packs (about harm, toxicity, wellness, litter, or relative risk) received mixed responses. Relative risk messages were perceived as most beneficial for smokers switching but also thought to potentially encourage uptake among nonsmokers. Some participants considered certain harm and toxicity messages to potentially dissuade uptake. Participants proposed several ideas to reduce the appeal of e-cigarette packaging and devices to deter youth uptake, including more prominent warnings, standardized packaging, and devices that are plain or include health messages. Conclusions Packaging can play a crucial role in communicating product and health messages to different consumer groups. Further consideration of how packaging and labeling can meet the needs of non-nicotine users while simultaneously reaching those who may benefit from using e-cigarettes to stop smoking is warranted. Implications While some viewed the nicotine addiction warning required on e-cigarettes and refill packaging in the United Kingdom as helpful in raising awareness of nicotine addiction, it did not resonate with most of our sample of adolescents and adults. The findings suggest that e-cigarette packaging could be better used to encourage smokers to switch to a less harmful alternative, with relative risk messages showing promise. Furthermore, strengthening on-pack messaging (eg increasing salience and rotating messages) and reducing the appeal of packaging (eg drab colors) and devices (eg including warnings) may help increase awareness of e-cigarette harms while deterring use among adolescents and nonsmokers

    From the Yellow Springs to the Land of Immortality

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    The Yellow Springs is a vivid metaphorical reference to the final destination of a mortal being and the dwelling place of a departed one in ancient China. In the writings of philosophers, historians, and poets during the long period of Chinese history, the Yellow Springs is not only considered as an underground physical locus where a grave is situated, but also an emotionally charged space invoke grieving, longing, and memory for the departed loved ones. The subterranean dwelling at the Yellow Springs is both a destination for a departed mortal being and an intermediary place to an ideal and imaginative realm, the land of immortality where the soul would enjoy eternity. From the Yellow Springs to the Land of Immortality is an exhibition that highlights sixteen carefully selected artworks from Gettysburg College’s Special Collections; each object embodies the perceptions and ritual practices of the rich funerary culture in the historical period in China, ranging from the late second millennium BCE to the beginning of the early twentieth century. These artifacts represent various artistic traditions and fabrication techniques — including jade carving, bronze casting, glazed pottery making — and most importantly, offer a glimpse of how art and artifacts are employed as a means to connect the living with the soul of the departed one in the Yellow Springs. Archaeo- logical discoveries in the past four decades in China have provided rich information that helps contextualize the sixteen artworks, as well as intimate knowledge about how the objects might “perform” in the life and afterlife of the individuals in the past. The practice of burying goods alongside departed loved ones has had a long tradition in China. The artworks included in this exhibition catalogue, encompassing the major dynasties in Chinese history, epitomize such a practice from a historical point of view. The bronze jue of the Shang dynasty (mid-16th c.-1046 BCE), and the miniature bell, a replica of yong bronze bell of the Zhou dynasty (1045-256 BCE), are not only ceremonial paraphernalia used by elites in ancestral sacrifices during the Bronze Age, but also material manifestations of ritual and music, the very foundations of ancient Chinese civilization. Comparable examples found in Bronze Age tombs illustrate the idea to connect the deceased, often the owner of these ritual objects, to the ancestors in the netherworld as they themselves were transitioned into the role of ancestors through a series of funerary ceremonies. [excerpt]https://cupola.gettysburg.edu/artcatalogs/1034/thumbnail.jp

    A Foundation Model for Cell Segmentation

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    Cells are the fundamental unit of biological organization, and identifying them in imaging data - cell segmentation - is a critical task for various cellular imaging experiments. While deep learning methods have led to substantial progress on this problem, models that have seen wide use are specialist models that work well for specific domains. Methods that have learned the general notion of "what is a cell" and can identify them across different domains of cellular imaging data have proven elusive. In this work, we present CellSAM, a foundation model for cell segmentation that generalizes across diverse cellular imaging data. CellSAM builds on top of the Segment Anything Model (SAM) by developing a prompt engineering approach to mask generation. We train an object detector, CellFinder, to automatically detect cells and prompt SAM to generate segmentations. We show that this approach allows a single model to achieve state-of-the-art performance for segmenting images of mammalian cells (in tissues and cell culture), yeast, and bacteria collected with various imaging modalities. To enable accessibility, we integrate CellSAM into DeepCell Label to further accelerate human-in-the-loop labeling strategies for cellular imaging data. A deployed version of CellSAM is available at https://label-dev.deepcell.org/

    Metro Atlanta Northwest Corridor Commuter Survey Results \u2013 Assessing Express Lane Impacts on Increased Corridor Throughput

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    In 2022, a survey was developed to try to gain insight into why a significant increase in morning peak traffic volumes was observed on the I-75/I-575 Northwest Corridor (NWC) in the Atlanta metropolitan area after the opening of the Express Lanes. It seemed unlikely that the increase was due to induced demand (increased total vehicle miles traveled (VMT) that was suppressed due to congestion), as most morning peak trips are generally mandatory trips such as work trips, school trips, and daycare trips. The previous research team suspected that the increase may have come from a diversion of commute traffic from arterials onto the freeway corridor, or from a shift of traffic from the shoulders of the peak to the center of the peak once the Express Lanes opened and congestion declined. Where the significant increase in traffic volumes on the NWC came from is an important question, especially for transportation planners, because it helps decision-makers get a better understanding of what the effects of opening new managed lane capacity along a corridor might be on traffic patterns around that corridor

    Adapting a Program to Inform African American and Hispanic American Women About Cancer Clinical Trials

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    The dearth of evidence-based clinical trial education programs may contribute to the underrepresentation of African American and Hispanic American women in cancer research studies. This study used focus group-derived data from 80 women distributed among eight Spanish- and English-language focus groups. These data guided the researchers’ adaptation and refinement of the National Cancer Institute’s various clinical trials education programs into a program that was specifically focused on meeting the information needs of minority women and addressing the barriers to study participation that they perceived. A “sisterhood” theme was adopted and woven throughout the presentation
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