33 research outputs found

    Crop pests and predators exhibit inconsistent responses to surrounding landscape composition

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    The idea that noncrop habitat enhances pest control and represents a win–win opportunity to conserve biodiversity and bolster yields has emerged as an agroecological paradigm. However, while noncrop habitat in landscapes surrounding farms sometimes benefits pest predators, natural enemy responses remain heterogeneous across studies and effects on pests are inconclusive. The observed heterogeneity in species responses to noncrop habitat may be biological in origin or could result from variation in how habitat and biocontrol are measured. Here, we use a pest-control database encompassing 132 studies and 6,759 sites worldwide to model natural enemy and pest abundances, predation rates, and crop damage as a function of landscape composition. Our results showed that although landscape composition explained significant variation within studies, pest and enemy abundances, predation rates, crop damage, and yields each exhibited different responses across studies, sometimes increasing and sometimes decreasing in landscapes with more noncrop habitat but overall showing no consistent trend. Thus, models that used landscape-composition variables to predict pest-control dynamics demonstrated little potential to explain variation across studies, though prediction did improve when comparing studies with similar crop and landscape features. Overall, our work shows that surrounding noncrop habitat does not consistently improve pest management, meaning habitat conservation may bolster production in some systems and depress yields in others. Future efforts to develop tools that inform farmers when habitat conservation truly represents a win–win would benefit from increased understanding of how landscape effects are modulated by local farm management and the biology of pests and their enemies

    Finishing the euchromatic sequence of the human genome

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    The sequence of the human genome encodes the genetic instructions for human physiology, as well as rich information about human evolution. In 2001, the International Human Genome Sequencing Consortium reported a draft sequence of the euchromatic portion of the human genome. Since then, the international collaboration has worked to convert this draft into a genome sequence with high accuracy and nearly complete coverage. Here, we report the result of this finishing process. The current genome sequence (Build 35) contains 2.85 billion nucleotides interrupted by only 341 gaps. It covers ∼99% of the euchromatic genome and is accurate to an error rate of ∼1 event per 100,000 bases. Many of the remaining euchromatic gaps are associated with segmental duplications and will require focused work with new methods. The near-complete sequence, the first for a vertebrate, greatly improves the precision of biological analyses of the human genome including studies of gene number, birth and death. Notably, the human enome seems to encode only 20,000-25,000 protein-coding genes. The genome sequence reported here should serve as a firm foundation for biomedical research in the decades ahead

    Condition-dependent adaptivity of organizational learning in Ontario's long-term care industry

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    grantor: University of TorontoOrganizations learn as a consequence of operating in their environments where they, intentionally or unintentionally, gather information and acquire knowledge. While organizational learning is generally considered adaptive, research suggests that the impact of learning on firms is far more complex. Recently, it has been suggested that the adaptivity of organizational learning is condition-dependent (Miner, Raghavan and Haunschild, 1997), complementing earlier views that some types of learning extend the survival of firms in certain situations (Dutton and Freedman, 1985; March, 1991; Levinthal, 1991). My review of current theory and recent research supports the idea of condition-dependence--that learning at the organization and population levels may be differentially advantageous to organizational survival. Specifically, organizational learning may be survival-enhancing, survival-imperiling, or exert no effects, depending upon the extent of environmental uncertainty confronting organizations. My research investigates the notion of condition-dependent adaptivity of organizational learning. The dependent variable I examine is the risk of organizational failure: survival-enhancing organizational learning serves to lower the risk of failure while harmful organizational learning increases the risk of failure. I test a series of hypotheses concerning the effects of organization-level, vicarious population-level, cross-population, and congenital population-level experience, and the moderating effects of regulation-induced uncertainty--regulatory dynamism--on the risk of organizational failure. I use event history analysis to test my hypotheses in the population of charitably-funded Homes for the Aged in the Province of Ontario over the entire 160 year history of the long-term care industry. Increasing regulatory dynamism significantly increases the risk of organizational failure. I find support for condition-dependent adaptivity: under conditions of increasing regulatory dynamism, only extremes of organization experience significantly reduce the risk of organizational failure. I observe a "stuck in the middle" phenomenon, where immunity to increasing regulatory dynamism enjoyed by charitable homes with very little, or a great deal, of experience is not enjoyed by homes with a moderate amount of experience. In addition to offering insights into some of the conditions under which certain types of experiential learning are survival-enhancing, my findings challenge some of the characteristics assigned organization- and population-level learning in extant organizational learning literature.Ph.D

    Conceptualising the initiation of researcher and research user partnerships: a meta-narrative review

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    Abstract Background Integrated knowledge translation refers to researcher and research user partnerships to co-generate and implement knowledge. This type of partnership may be critical to success in increasing knowledge use and impact, but the conceptualisation of its initiation has not been fully developed. Initiating this type of partnership has proven to be challenging but crucial to its success. The purpose of this study was to conduct a meta-narrative review of partnership initiation concepts, processes, enablers, barriers and outcomes in the disciplines of healthcare and social sciences where examples of researcher and research user partnerships were found. Methods Seven research traditions were identified. Three were in the discipline of social sciences (including psychology, education and business) and five were in the discipline of healthcare (including medicine, nursing, public health, health services research). Searches were conducted in MEDLINE, EMBASE, CINAHL, ABI Inform, ERIC, PsychInfo and the Cochrane Library on June 9, 2017. Fifty titles and abstracts were screened in triplicate; data were extracted from three records in duplicate. Narratives comprised of study characteristics and conceptual and empirical findings across traditions were tabulated, summarised and compared. Results A total of 7779 unique results were identified and 17 reviews published from 1998 to 2017 were eligible. All reviews identified a partnership initiation phase referred to as ‘early’ or ‘developmental’, or more vaguely as ‘fuzzy’, across six traditions – integrated knowledge translation, action research, stakeholder engagement, knowledge transfer, team initiation and shared mental models. The partnership initiation processes, enablers, barriers and outcomes were common to multiple narratives and summarised in a Partnership Initiation Conceptual Framework. Our review revealed limited use or generation of theory in most included reviews, and little empirical evidence testing the links between partnership initiation processes, enablers or barriers, and outcomes for the purpose of describing successful researcher and research user partnership initiation. Conclusions Narratives across multiple research traditions revealed similar integrated knowledge translation initiation processes, enablers, barriers and outcomes, which were captured in a conceptual framework that can be employed by researchers and research users to study and launch partnerships. While partnership initiation was recognised, it remains vaguely conceptualised despite lengthy research in several fields of study. Ongoing research of partnership initiation is needed to identify or generate relevant theory, and to empirically establish outcomes and the determinants of those outcomes

    Initiation is recognized as a fundamental early phase of integrated knowledge translation (IKT): qualitative interviews with researchers and research users in IKT partnerships

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    Abstract Background Health care researcher-research user partnerships, referred to as integrated knowledge translation (IKT), have been adopted on an international basis, and are an effective means of co-generating and implementing evidence into policy and practice. Prior research suggests that an initiation period is essential for establishing functional partnerships. To characterize IKT initiation and describe determinants of IKT initiation success, this study explored IKT initiation processes, enablers, and barriers among researchers and research users involved in IKT partnerships. Methods A descriptive qualitative approach was used compliant with COREQ standards. Canadian researchers and research users in research collaborations were identified on publicly-available directories and web sites, and referred by those interviewed. They were asked to describe how partnerships were initiated, influencing factors, the length of initiation, and interventions needed to support initiation. Sampling was concurrent with data collection and analysis to achieve thematic saturation. Data were analyzed using constant comparative technique by all members of the research team. Results In total, 22 individuals from 6 provinces were interviewed (9 researchers, 11 research users, 2 connectors). They confirmed that IKT initiation is a distinct early phase of partnerships. The period ranged from 6 months to 2 years for 75.0% of participants in pre-existing partnerships, to 6 years for newly-formed partnerships. High-level themes were: Newly identifying and securing partners is an intensive process; Processes and activities take place over a protracted period through multiple interactions; Identifying and engaging committed partners is reliant on funding; and Partnership building is challenged by maintaining continuity and enthusiasm. Participants underscored the need for an IKT partner matching forum, IKT initiation toolkit, and funding for non-research activities required during IKT initiation to establish functional researcher-research user partnerships. Themes were largely similar regardless of participant years of experience with IKT or being involved in a new versus pre-existing partnership. Conclusions IKT initiation is a recognized and important early phase of IKT that establishes functional partnerships, and once established, ongoing partnership for subsequent projects is likely. Further research is needed to develop and evaluate approaches recommended by participants for stimulating IKT initiation

    Optimizing the design and implementation of question prompt lists to support person‐centred care: A scoping review

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    Abstract Introduction Question prompt lists (QPLs) are lists of questions that patients may want to discuss with clinicians. QPLs support person‐centred care and have been associated with many beneficial outcomes including improved patient question‐asking, and the amount and quality of the information provided by clinicians. The purpose of this study was to review published research on QPLs to explore how QPL design and implementation can be optimized. Methods We performed a scoping review by searching MEDLINE, EMBASE, Scopus, CINAHL, Cochrane Library and Joanna Briggs Database from inception to 8 May 2022, for English language studies of any design that evaluated QPLs. We used summary statistics and text to report study characteristics, and QPL design and implementation. Results We included 57 studies published from 1988 to 2022 by authors in 12 countries on a range of clinical topics. Of those, 56% provided the QPL, but few described how QPLs were developed. The number of questions varied widely (range 9–191). Most QPLs were single‐page handouts (44%) but others ranged from 2 to 33 pages. Most studies implemented a QPL alone with no other accompanying strategy; most often in a print format before consultations by mail (18%) or in the waiting room (66%). Both patients and clinicians identified numerous benefits to patients of QPLs (e.g., increased patient confidence to ask questions, and patient satisfaction with communication or care received; and reduced anxiety about health status or treatment). To support use, patients desired access to QPLs in advance of clinician visits, and clinicians desired information/training on how to use the QPL and answer questions. Most (88%) studies reported at least one beneficial impact of QPLs. This was true even for single‐page QPLs with few questions unaccompanied by other implementation strategies. Despite favourable views of QPLs, few studies assessed outcomes amongst clinicians. Conclusion This review identified QPL characteristics and implementation strategies that may be associated with beneficial outcomes. Future research should confirm these findings via systematic review and explore the benefits of QPLs from the clinician's perspective. Patient/Public Contribution Following this review, we used the findings to develop a QPL on hypertensive disorders of pregnancy and interviewed women and clinicians about QPL design including content, format, enablers and barriers of use, and potential outcomes including beneficial impacts and possible harms (will be published elsewhere)

    Navigating the Virtual Landscape: Methodological Considerations for Qualitative Research in Long-Term Care

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    With the COVID-19 pandemic halting all in-person research in March 2020, many researchers adopted virtual methods to continue their work amid this global crisis. As the pandemic persisted and the safety of participants and researchers remained a priority, virtual research grew in popularity for qualitative researchers. This in turn led to methodological insights on the application and advantages of conducting qualitative research using virtual methods. Virtual methods have been found to enhance participant comfort, facilitate open discussion of sensitive topics, alleviate fatigue in participants and researchers, and result in more engaging and focused interviews. While the body of evidence supporting virtual methods of data collection for nursing and other healthcare disciplines continues to grow, its application in the long-term care (LTC) setting remains underreported. In this paper, we discuss the virtual methods that we developed and implemented to successfully conduct a virtual qualitative single case study in a Canadian LTC home during the COVID-19 pandemic. Considerations from existing literature on virtual methods are discussed in parallel with strategies we implemented to successfully conduct a virtual study in LTC. This paper contributes to the growing body of literature on methodological insights into conducting virtual qualitative research in LTC. We provide evidence-based strategies for the virtual recruitment of study sites, study participants including residents, team members and families, and virtual data collection methods. These recommendations offer insights to overcome challenges and maximize the advantages of virtual methods, to enhance the quality and rigour of virtual qualitative research conducted within LTC settings

    Sustained effects of the INFORM cluster randomized trial: an observational post-intervention study

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    Abstract Background Numerous studies have examined the efficacy and effectiveness of health services interventions. However, much less research is available on the sustainability of study outcomes. The purpose of this study was to assess the lasting benefits of INFORM (Improving Nursing Home Care Through Feedback On perfoRMance data) and associated factors 2.5 years after removal of study supports. INFORM was a complex, theory-based, three-arm, parallel cluster-randomized trial. In 2015–2016, we successfully implemented two theory-based feedback strategies (compared to a simple feedback approach) to increase nursing home (NH) care aides’ involvement in formal communications about resident care. Methods Sustainability analyses included 51 Western Canadian NHs that had been randomly allocated to a simple and two assisted feedback interventions in INFORM. We measured care aide involvement in formal interactions (e.g., resident rounds, family conferences) and other study outcomes at baseline (T1, 09/2014-05/2015), post-intervention (T2, 01/2017-12/2017), and long-term follow-up (T3, 06/2019–03/2020). Using repeated measures, hierarchical mixed models, adjusted for care aide, care unit, and facility variables, we assess sustainability and associated factors: organizational context (leadership, culture, evaluation) and fidelity of the original INFORM intervention. Results We analyzed data from 18 NHs (46 units, 529 care aides) in simple feedback, 19 NHs (60 units, 731 care aides) in basic assisted feedback, and 14 homes (41 units, 537 care aides) in enhanced assisted feedback. T2 (post-intervention) scores remained stable at T3 in the two enhanced feedback arms, indicating sustainability. In the simple feedback group, where scores were had remained lower than in the enhanced groups during the intervention, T3 scores rose to the level of the two enhanced feedback groups. Better culture (β = 0.099, 95% confidence interval [CI] 0.005; 0.192), evaluation (β = 0.273, 95% CI 0.196; 0.351), and fidelity enactment (β = 0.290, 95% CI 0.196; 0.384) increased care aide involvement in formal interactions at T3. Conclusions Theory-informed feedback provides long-lasting improvement in care aides’ involvement in formal communications about resident care. Greater intervention intensity neither implies greater effectiveness nor sustainability. Modifiable context elements and fidelity enactment during the intervention period may facilitate sustained improvement, warranting further study—as does possible post-intervention spread of our intervention to simple feedback homes
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