65 research outputs found

    Information Seeking and Students Studying for Professional Careers: the Cases of Enginerering and Law Students in Ireland

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    This paper reports the results of two empirical studies which explored the information seeking behaviour of engineering and law students in Ireland. Findings reveal similar patterns in the information seeking behaviour between students studying to become professionals and information seeking patterns of these groups identified in the Leckie et al. model. Students learned their information seeking strategies, including effective and less effective approaches, from educators. Mis-perceptions of the role and value of libraries and information professionals in their studies were common, and as a result, students often adopted information seeking strategies that excluded libraries and library staff. The two studies suggest that engineering and law students in Ireland could benefit from greater information literacy training and awareness, enabling them to acquire the information skills they need to function effectively and efficiently in their future professional work lives

    Enriching the undergraduate curriculum with digital research skills: A blended approach

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    This paper describes an 18-month digital learning project, designed to support the development of students’ digital research skills in UCD’s BA and BSocSc programmes. The project involved the creation of six original interactive e-tutorials focusing on key digital research topics, which were embedded in the institutional VLE (Blackboard) in a blended learning structure, and rolled out in four modules in the School of Information & Communication Studies in 2017/2018. During the post-evaluation phase, student feedback was gathered via an online survey and in two qualitative focus groups. This paper outlines the rationale, implementation and results of the project, and offers insights into incorporating digital learning into undergraduate programmes, and student experiences of blended learning

    A study of university law students’ self-perceived digital competences.

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    The concept of digital competences incorporates the effective use of constantly-changing digital tools and media for learning and performing digital tasks, digital behaviours (such as online communication, teamwork, ethical sharing of information), as well as digital mindsets that value lifelong digital learning and development. The current pandemic crisis has accelerated the need to diagnose and understand more systematically Higher Education students’ digital competences and the way in which they shape academic performance and outcomes. This empirical study explores the digital competences of students, studying in Law related courses, by means of a self-assessment survey tool, which has been previously tested with information and library science students, and was developed to study students’ technology mastery (i.e. the abilities, competences, capabilities and skills required for using digital technology, media and tools) and their digital citizenship mindsets (consisting of attitudes and behaviours necessary to develop as a critical, reflective and lifelong learners). The study found age demographic differences, which presented significant correlations pointing to the presence of diverse levels of competences in the student group. Correlation statistics of the survey data demonstrated that students’ prior everyday participation as a digital citizen was connected to a number of important academic skills, such as the ability to identify information in different contexts, students’ digital learning and development, their digital abilities to complete academic work, their information literacy skills and their skills around managing their digital wellbeing and identity. Focus groups data with academics revealed that they valued the development of students’ digital competences for the purposes of learning, while studying at university and placed less emphasis on digital citizenship skills. These academics also considered the value of digital platforms and tools (the focus on ‘ICT Proficiency’) to be more relevant for academic study than digital citizenship mindsets

    A cross-sectional study of discipline-based self-perceived digital literacy competencies of nursing students.

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    This study offers an empirical exploration of self-assessed digital competencies of students, most of whom studied in nursing courses, using a discipline-based self-assessment survey tool. A range of digital competencies were explored: information and communication technology proficiency and productivity, information literacy, digital creation, digital research, digital communication, digital learning and development, digital innovation, digital identity management and digital wellbeing. Quantitative data were collected from November to December 2021 via a questionnaire survey administered to students. Quantitative results were reported through descriptive statistical analysis. Mann-Whitney (U-test) and Kruskal-Wallis non-parametric statistical tests were used to identify statistically significant differences, based on age demographics and pre- or post-registration course. Thematic analysis was utilized for survey open-ended questions data. Students reported low competencies in the following digital literacy dimensions, all of which were imperative for their studies and for their future professional careers: information literacy, digital research, digital innovation. Significant statistical subgroup differences were found between age demographics and pre/post registration within most of the digital competence dimensions. The survey open-ended comments revealed that students encountered challenges around digital skills they had mostly developed via everyday life experiences, and trial-and-error approaches. Increasing awareness of existing digital gaps and offering tailored digital skills enhancement can empower students as future-proof evidence-based practitioners in an evolving digital healthcare landscape

    Barriers to breast cancer screening among diverse cultural groups in Melbourne, Australia

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    This study explored the association between health literacy, barriers to breast cancer screening, and breast screening participation for women from culturally and linguistically diverse (CALD) backgrounds. English-, Arabic- and Italian-speaking women (n = 317) between the ages of 50 to 74 in North West Melbourne, Australia were recruited to complete a survey exploring health literacy, barriers to breast cancer screening, and self-reported screening participation. A total of 219 women (69%) reported having a breast screen within the past two years. Results revealed that health literacy was not associated with screening participation. Instead, emotional barriers were a significant factor in the self-reported uptake of screening. Three health literacy domains were related to lower emotional breast screening barriers, feeling understood and supported by healthcare providers, social support for health and understanding health information well enough to know what to do. Compared with English- and Italian-speaking women, Arabic-speaking women reported more emotional barriers to screening and greater challenges in understanding health information well enough to know what to do. Interventions that can improve breast screening participation rates should aim to reduce emotional barriers to breast screening, particularly for Arabic-speaking women

    Endocrine therapy resistant ESR1 variants revealed by genomic characterization of breast cancer derived xenografts

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    To characterize patient-derived xenografts (PDXs) for functional studies, we made whole-genome comparisons with originating breast cancers representative of the major intrinsic subtypes. Structural and copy number aberrations were found to be retained with high fidelity. However, at the single-nucleotide level, variable numbers of PDX-specific somatic events were documented, although they were only rarely functionally significant. Variant allele frequencies were often preserved in the PDXs, demonstrating that clonal representation can be transplantable. Estrogen-receptor-positive PDXs were associated with ESR1 ligand-binding-domain mutations, gene amplification, or an ESR1/YAP1 translocation. These events produced different endocrine-therapy-response phenotypes in human, cell line, and PDX endocrine-response studies. Hence, deeply sequenced PDX models are an important resource for the search for genome-forward treatment options and capture endocrine-drug-resistance etiologies that are not observed in standard cell lines. The originating tumor genome provides a benchmark for assessing genetic drift and clonal representation after transplantation

    Regulation of Coronary Blood Flow

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    The heart is uniquely responsible for providing its own blood supply through the coronary circulation. Regulation of coronary blood flow is quite complex and, after over 100 years of dedicated research, is understood to be dictated through multiple mechanisms that include extravascular compressive forces (tissue pressure), coronary perfusion pressure, myogenic, local metabolic, endothelial as well as neural and hormonal influences. While each of these determinants can have profound influence over myocardial perfusion, largely through effects on end-effector ion channels, these mechanisms collectively modulate coronary vascular resistance and act to ensure that the myocardial requirements for oxygen and substrates are adequately provided by the coronary circulation. The purpose of this series of Comprehensive Physiology is to highlight current knowledge regarding the physiologic regulation of coronary blood flow, with emphasis on functional anatomy and the interplay between the physical and biological determinants of myocardial oxygen delivery. © 2017 American Physiological Society. Compr Physiol 7:321-382, 2017

    The TESS-Keck Survey. XI. Mass Measurements for Four Transiting sub-Neptunes orbiting K dwarf TOI-1246

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    Multi-planet systems are valuable arenas for investigating exoplanet architectures and comparing planetary siblings. TOI-1246 is one such system, with a moderately bright K dwarf (V=11.6, K=9.9) and four transiting sub-Neptunes identified by TESS with orbital periods of 4.31 d, 5.90 d, 18.66 d, and 37.92 d. We collected 130 radial velocity observations with Keck/HIRES and TNG/HARPS-N to measure planet masses. We refit the 14 sectors of TESS photometry to refine planet radii (2.97±0.06 R⊕,2.47±0.08 R⊕,3.46±0.09 R⊕, 3.72±0.16 R⊕), and confirm the four planets. We find that TOI-1246 e is substantially more massive than the three inner planets (8.1±1.1M⊕, 8.8±1.2M⊕, 5.3±1.7M⊕, 14.8±2.3M⊕). The two outer planets, TOI-1246 d and TOI-1246 e, lie near to the 2:1 resonance (Pe/Pd=2.03) and exhibit transit timing variations. TOI-1246 is one of the brightest four-planet systems, making it amenable for continued observations. It is one of only six systems with measured masses and radii for all four transiting planets. The planet densities range from 0.70±0.24 to 3.21±0.44g/cm3, implying a range of bulk and atmospheric compositions. We also report a fifth planet candidate found in the RV data with a minimum mass of 25.6 ± 3.6 M⊕. This planet candidate is exterior to TOI-1246 e with a candidate period of 93.8 d, and we discuss the implications if it is confirmed to be planetary in nature

    The TESS-Keck Survey. XI. Mass Measurements for Four Transiting Sub-Neptunes Orbiting K Dwarf TOI-1246

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    Multiplanet systems are valuable arenas for investigating exoplanet architectures and comparing planetary siblings. TOI-1246 is one such system, with a moderately bright K dwarf (V = 11.6, K = 9.9) and four transiting sub-Neptunes identified by TESS with orbital periods of 4.31, 5.90, 18.66, and 37.92 days. We collected 130 radial velocity observations with Keck/HIRES and TNG/HARPS-N to measure planet masses. We refit the 14 sectors of TESS photometry to refine planet radii (2.97 +/- 0.06 R (circle plus), 2.47 +/- 0.08 R (circle plus), 3.46 +/- 0.09 R (circle plus), and 3.72 +/- 0.16 R (circle plus)) and confirm the four planets. We find that TOI-1246 e is substantially more massive than the three inner planets (8.1 +/- 1.1 M (circle plus), 8.8 +/- 1.2 M (circle plus), 5.3 +/- 1.7 M (circle plus), and 14.8 +/- 2.3 M (circle plus)). The two outer planets, TOI-1246 d and TOI-1246 e, lie near to the 2:1 resonance (P (e)/P ( d ) = 2.03) and exhibit transit-timing variations. TOI-1246 is one of the brightest four-planet systems, making it amenable for continued observations. It is one of only five systems with measured masses and radii for all four transiting planets. The planet densities range from 0.70 +/- 0.24 to 3.21 +/- 0.44 g cm(-3), implying a range of bulk and atmospheric compositions. We also report a fifth planet candidate found in the RV data with a minimum mass of 25.6 +/- 3.6 M (circle plus). This planet candidate is exterior to TOI-1246 e, with a candidate period of 93.8 days, and we discuss the implications if it is confirmed to be planetary in nature

    Endocrine-Therapy-Resistant ESR1 Variants Revealed by Genomic Characterization of Breast-Cancer-Derived Xenografts

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    To characterize patient-derived xenografts (PDXs) for functional studies, we made whole-genome comparisons with originating breast cancers representative of the major intrinsic subtypes. Structural and copy number aberrations were found to be retained with high fidelity. However, at the single-nucleotide level, variable numbers of PDX-specific somatic events were documented, although they were only rarely functionally significant. Variant allele frequencies were often preserved in the PDXs, demonstrating that clonal representation can be transplantable. Estrogen-receptor-positive PDXs were associated with ESR1 ligand-binding-domain mutations, gene amplification, or an ESR1/YAP1 translocation. These events produced different endocrine-therapy-response phenotypes in human, cell line, and PDX endocrine-response studies. Hence, deeply sequenced PDX models are an important resource for the search for genome-forward treatment options and capture endocrine-drug-resistance etiologies that are not observed in standard cell lines. The originating tumor genome provides a benchmark for assessing genetic drift and clonal representation after transplantation
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