Perspectives on Technology Use in the Context of Caregiving for Persons With Dementia: Qualitative Interview Study.

Background: Examining ways to support persons with dementia and their caregivers to help minimize the disease's impact on individuals, families, and society is critical. One emerging avenue for support is technology (eg, smartphones and smart homes).

Objective: Given the increasing presence of technology in caregiving, it is pertinent to appreciate whether and how technology can be most useful to a care partner's everyday life.

Copy-number dosage regulates telomere maintenance and disease-associated pathways in neuroblastoma.

Telomere maintenance in neuroblastoma is linked to poor outcome and caused by either telomerase reverse transcriptase (TERT) activation or through alternative lengthening of telomeres (ALT). In contrast to TERT activation, commonly caused by genomic rearrangements or MYCN amplification, ALT is less well understood. Alterations at the ATRX locus are key drivers of ALT but only present in ∼50% of ALT tumors.

Patterns of social support among older adults with cancer and associations with patient-reported outcomes: A latent class analysis.

Introduction: Social support can play an important role in the care of older adults living with cancer. However, different patterns of social support, such as emotional, instrumental, informational, appraisal, and giving support need to be considered to facilitate adjustments to cancer. This study aimed to explore the distinct patterns of social support among older adults with cancer and examine the socio-demographic variables and patient-reported outcomes that may be associated with patterns of social support.

Synchronous motion of the Easter mantle plume and the East Pacific Rise.

The Easter mantle plume has produced one of the longest hotspot tracks in the Pacific Ocean. While previous studies have focused on the eastern side extending across the Nazca Plate, we use Ar/Ar isotopic and geochemical data to investigate the less explored western side around the Easter Microplate. We propose a dynamic model in which a deeper (600 km-depth), less buoyant mantle exerts a westward force on the East Pacific Rise (EPR), while a more buoyant plume region drives Easter hotspot volcanism and a localised acceleration in seafloor spreading.

Understanding Nurse Retention at a Mental Health and Addictions Facility During a Dual Pandemic.

Background: The COVID-19 pandemic exposed nurses to new and more severe workplace stressors; exposure to these workplace stressors has exacerbated nurse turnover. Nurses working in mental health and substance use (MHSU) have also experienced the unique stressor of the overdose crisis in British Columbia (BC). MHSU nurses have been at the forefront of working to manage these dual emergencies.

Sidechain structure-activity relationships of cyclobutane-based small molecule αvβ3 antagonists.

The integrin family of cell surface extracellular matrix binding proteins are key to several physiological processes involved in tissue development, as well as cancer proliferation and dissemination. They are therefore attractive targets for drug discovery with cancer and non-cancer applications. We have developed a new integrin antagonist chemotype incorporating a functionalised cyclobutane ring as the central scaffold in an arginine-glycine-aspartic acid mimetic structure.

Intercellular extrachromosomal DNA copy-number heterogeneity drives neuroblastoma cell state diversity.

Neuroblastoma exhibits significant inter- and intra-tumor genetic heterogeneity and varying clinical outcomes. Extrachromosomal DNAs (ecDNAs) may drive this heterogeneity by independently segregating during cell division, leading to rapid oncogene amplification. While ecDNA-mediated oncogene amplification is linked to poor prognosis in various cancers, the effects of ecDNA copy-number heterogeneity on intermediate phenotypes are poorly understood.

Reconstructing extrachromosomal DNA structural heterogeneity from long-read sequencing data using Decoil.

Circular extrachromosomal DNA (ecDNA) is a form of oncogene amplification found across cancer types and associated with poor outcome in patients. ecDNA can be structurally complex and can contain rearranged DNA sequences derived from multiple chromosome locations. As the structure of ecDNA can impact oncogene regulation and may indicate mechanisms of its formation, disentangling it at high resolution from sequencing data is essential.

A Tailored Self-Management App to Support Older Adults with Cancer and Multi-Morbidities: Development and Usability Testing.

Cancer self-management interventions improve symptom management and confidence, but few interventions target the complex needs of older adults with cancer and multi-morbidities. Despite growing evidence of digital health tools in cancer care, many such tools have not been co-designed with older adults to ensure that they are tailored to their specific needs. The objective of the study was to design a self-and symptom-management app to support older adults with cancer and multi-morbidities.

A Multi-Method Exploration of Older Adults' Technology Use During the Pandemic in Two Canadian Provinces.

The pandemic caused a rapid shift to reliance on technology to meet basic daily needs related to both health and social interaction. As social isolation is known to be a major contributing factor to physiologic decline and psychological morbidity amongst older adults, we sought to study this shift, and conducted a multi-method study including; (1) a cross-sectional telephone survey and in-depth interviews with community dwelling older adults; and (2) interviews with community organizations supporting technology use for older adults. Quantitative data were analysed using descriptive, inferential statistics; qualitative data were analyzed using thematic analysis.

Nurse Involvement in Health Information Technology Design for Computerized Nursing Practice: A Scoping Review.

This scoping review assesses evidence regarding nurse involvement in health information technology (health IT) design, focusing on the method(s), frequency, capacity, and levels of involvement. The JBI methodology for scoping reviews was used to search seven multidisciplinary databases, yielding 2948 articles. After screening, 98 articles were included for data abstraction.

Technology Use for Social Interaction Amongst Older Adults During the COVID-19 Pandemic: A Qualitative Study.

The COVID-19 pandemic had an impact on socialization across all age groups but older adults experienced additional challenges. The purpose of this study was to explore older adults' perceptions and experiences of using technology to support social interactions during the COVID-19 pandemic. We used a qualitative interpretive descriptive approach to understand community dwelling older adults' perceptions of their experiences.

Personalized Vascularized Models of Breast Cancer Desmoplasia Reveal Biomechanical Determinants of Drug Delivery to the Tumor.

Desmoplasia in breast cancer leads to heterogeneity in physical properties of the tissue, resulting in disparities in drug delivery and treatment efficacy among patients, thus contributing to high disease mortality. Personalized in vitro breast cancer models hold great promise for high-throughput testing of therapeutic strategies to normalize the aberrant microenvironment in a patient-specific manner. Here, tumoroids assembled from breast cancer cell lines (MCF7, SKBR3, and MDA-MB-468) and patient-derived breast tumor cells (TCs) cultured in microphysiological systems including perfusable microvasculature reproduce key aspects of stromal and vascular dysfunction causing impaired drug delivery.

Slab steepening and rapid mantle wedge replacement during back-arc rifting in the New Hebrides.

The effects of the composition and angle of the subducting slab and mantle wedge flow on tectonic and magmatic processes in island arcs and associated back-arcs are poorly understood. Here we analyse the ages and compositions of submarine lavas from the flanks and the floor of the back-arc Futuna Trough some 50 km east of Tanna Island in the New Hebrides arc front. Whereas >2.

Impact of the COVID-19 pandemic on physical activity among older adults with cancer in a central Canadian province: Results from a survey study.

Background: Physical activity is important for individuals with cancer. Older adults with cancer (OACA) have been disproportionally vulnerable to both COVID-19 infection and its outcomes. This study investigated how the COVID-19 pandemic and associated restrictions affected physical activity in OACA in one Canadian province.

Crowd-sourced benchmarking of single-sample tumor subclonal reconstruction.

Subclonal reconstruction algorithms use bulk DNA sequencing data to quantify parameters of tumor evolution, allowing an assessment of how cancers initiate, progress and respond to selective pressures. We launched the ICGC-TCGA (International Cancer Genome Consortium-The Cancer Genome Atlas) DREAM Somatic Mutation Calling Tumor Heterogeneity and Evolution Challenge to benchmark existing subclonal reconstruction algorithms. This 7-year community effort used cloud computing to benchmark 31 subclonal reconstruction algorithms on 51 simulated tumors.

Tailored Self-Management App to Support Older Adults With Cancer and Multimorbidity: Development and Usability Testing.

Background: Globally, cancer predominates in adults aged older than 60 years, and 70% of older adults have ≥1 chronic condition. Cancer self-management interventions can improve symptom management and confidence, but few interventions target the complex needs of older adults with cancer and multimorbidity. Despite growing evidence of digital health tools in cancer care, there is a paucity of theoretically grounded digital self-management supports for older adults.

Oncology care providers' perceptions and anticipated barriers regarding the use of geriatric assessment in routine clinic practice: A mixed-methods study.

Introduction: Geriatric assessment (GA) is currently not a standard of cancer care across Canada. In the Canadian province of Saskatchewan, there are no known formal geriatric teams in outpatient oncology settings. Therefore, it is not known whether, how, and to what extent GA is performed in oncology clinics, or what supports are needed to carry out a GA.

Self-organization of vascularized skeletal muscle from bovine embryonic stem cells.

Cultured beef holds promising potential as an alternative to traditional meat options. While adult stem cells are commonly used as the cell source for cultured beef, their proliferation and differentiation capacities are limited. To produce cultured beef steaks, current manufacturing plans often require the separate preparation of multiple cell types and intricate engineering for assembling them into structured tissues.

Caring for older adults with cancer in Canada: Views from healthcare providers and cancer care allies in the community.

Background: Cancer is common and disproportionately impacts older adults. Moreover, cancer care of older adults is complex, and the current Canadian cancer care system struggles to address all of the dimensions. In this project, our goal was to understand the barriers and facilitators to caring for older adults with cancer from perspectives of healthcare professionals and cancer care allies, which included community groups, seniors' centers, and other community-based supports.

Access to cancer clinical trials for racialised older adults: an equity-focused rapid scoping review protocol.

Background: The intersection of race and older age compounds existing health disparities experienced by historically marginalised communities. Therefore, racialised older adults with cancer are more disadvantaged in their access to cancer clinical trials compared with age-matched counterparts. To determine what has already been published in this area, the rapid scoping review question are: what are the barriers, facilitators and potential solutions for enhancing access to cancer clinical trials among racialised older adults?

Methods: We will use a rapid scoping review methodology in which we follow the six-step framework of Arksey and O'Malley, including a systematic search of the literature with abstract and full-text screening to be conducted by two independent reviewers, data abstraction by one reviewer and verification by a second reviewer using an Excel data abstraction sheet.

Passenger Gene Coamplifications Create Collateral Therapeutic Vulnerabilities in Cancer.

Unlabelled: DNA amplifications in cancer do not only harbor oncogenes. We sought to determine whether passenger coamplifications could create collateral therapeutic vulnerabilities. Through an analysis of >3,000 cancer genomes followed by the interrogation of CRISPR-Cas9 loss-of-function screens across >700 cancer cell lines, we determined that passenger coamplifications are accompanied by distinct dependency profiles.