Better rootstocks for apple trees

Mailing Merton rootstocks have given the best results in ten years\u27 trials with apple rootstocks on Stoneville Research Station and on growers\u27 properties. THE type of rootstock used imparts important characteristics to an apple tree. Tree size and stability, cropping characteristics, susceptibility to soil-borne pests and diseases and, to some extent, fruit quality are all affected by the choice of rootstock

Making authentic: exploring boundary objects and bricolage in knowledge mobilisation through National Health Service-university partnerships

Background: In healthcare, bridging the research-to-practice gap is a top priority. Knowledge mobilisation scholars suggest that this gap can be closed through collaboration between knowledge users and producers. The concept of boundary objects – shared things and ideas that enable communication – has gained popularity across various collaborative work practices, but their potential within knowledge mobilisation in health care is understudied. An ongoing challenge for designers of boundary objects is how to create objects that are valued and shared both in principle and in practice. Aims and objectives: This paper reports on a study of boundary objects used during knowledge mobilisation through NHS-university partnerships called Collaborations for Leadership in Applied Health Research and Care (CLAHRCs). The distinction is investigated between boundary objects-in-theory and boundary objects-in-use, considering whether the latter possess specific characteristics which make them more effective during knowledge mobilisation. Methods: A qualitative case study of three CLAHRCs was conducted. Twenty-one people employed as ‘boundary spanners’ were interviewed to explore whether boundary objects played a role in knowledge mobilisation. Findings: The most effective boundary objects-in-use were co-produced through a process of bricolage. These possessed high levels of meaningfulness and resonance, and reconciled multiple user perspectives. Together these properties contributed to the overall authenticity of boundary objects-in-use. Discussion and conclusion: This paper helps to explain why designated boundary objects frequently fail in practice, and why there is a need to focus on understanding boundary objects based on symbolic, rather than structural, dimensions

Mammy\u27s Shufflin\u27 Dance / music by Melville J. Gideon; words by L. Wolfe Gilbert

Cover: photo of the Dolce Sisters (see 433); Publisher: Will Rossiter (Chicago)https://egrove.olemiss.edu/sharris_c/1019/thumbnail.jp

Effects of Acute Physical Activity on NIH Toolbox-Measured Cognitive Functions Among Children in Authentic Education Settings

Introduction: Identifying a dose of physical activity (PA) that can improve cognitive function in children has important implications for school-day PA recommendations. Researchers and educators have interest in this link as it relates to both health and academic performance. This study examined the dose-response relationship between PA and improvement in cognition in a sample of fifth and sixth grade students. Methods: Participants (n = 156) from eight classes each completed two of four different cognitive assessments on an iPad, both before and after exposure to one of four randomized, 10-min PA conditions (sedentary, light, moderate, and vigorous). Conditions were standardized through use of videos to lead movement, and participants wore accelerometers to confirm fidelity to PA condition. The four cognitive assessments were selected from the NIH Toolbox Cognition Battery, and included Dimensional Change Card Sort, Flanker, Pattern Comparison, and Picture Sequence Memory tests. Hierarchical linear regression models were used to estimate the effects of condition on each test using an intention to treat analysis. Results: Fidelity to PA condition was acceptable for sedentary and light conditions, but became less precise for moderate and vigorous conditions. No significant time by condition interaction was observed for any of the cognitive assessment scores. Conclusions: Results did not substantiate a dose-response link between PA intensity and selected measures of cognitive function. More research is needed to investigate the potentially nuanced effects of short bouts of PA on cognitive functioning in children

Plant yourself where language blooms: Direct experience of nature changes how parents and children talk about nature.

The current study investigated the affordances of direct and indirect experience of nature on parent-child talk. Parents and children produced a wider range of nature words when exploring a park (direct experience) than when exploring a thematically matched indoor visitor center (indirect experience). Parents and children also produced more plant-related nature word types when exploring the park compared to the visitor center. Findings suggest that direct experience of nature increases the diversity and specificity of parent-child talk about nature, and mitigates the phenomenon of “plant blindness” (cf. Wandersee & Schussler, 1999). Direct experience of nature provides an optimal context for children to learn the language of nature and consequently to cultivate children's status as custodians of the natural world

Australian encephalitis: sentinel chicken surveillance programme

Sentinel chicken flocks are used to monitor flavivirus activity in Australia. The main viruses of concern are Murray Valley encephalitis (MVE) and Kunjin which cause the potentially fatal disease encephalitis, in humans. Currently 30 flocks are maintained in the north of Western Australia, 9 in the Northern Territory, 12 in New South Wales and 10 in Victoria. The flocks in Western Australia and the Northern Territory are tested year round but those in New South Wales and Victoria are tested only from November to March, during the main risk season. Results are coordinated by the Arbovirus Laboratory in Perth and reported bimonthly

3D integrated superconducting qubits

As the field of superconducting quantum computing advances from the few-qubit stage to larger-scale processors, qubit addressability and extensibility will necessitate the use of 3D integration and packaging. While 3D integration is well-developed for commercial electronics, relatively little work has been performed to determine its compatibility with high-coherence solid-state qubits. Of particular concern, qubit coherence times can be suppressed by the requisite processing steps and close proximity of another chip. In this work, we use a flip-chip process to bond a chip with superconducting flux qubits to another chip containing structures for qubit readout and control. We demonstrate that high qubit coherence ($T_1$, $T_{2,\rm{echo}} > 20\,\mu$s) is maintained in a flip-chip geometry in the presence of galvanic, capacitive, and inductive coupling between the chips