110 research outputs found
Defining Deliberate Practice in Supervised Dietetics Education
Deliberate practice serves as a potential framework to understand what activities, attributes, and characteristics make an individual an expert in their chosen field or profession. Historically, deliberate practice activities included those that were highly structured with purposeful goals, frequent repetition, and active feedback with immediate remediation. Deliberate practice has never been defined within the context of supervised dietetics education; therefore, the purpose of this research was to develop a valid and reliable instrument to define deliberate practice in supervised dietetics practice, based on the opinions of practitioners and educators in dietetics and allied health professions. Segment one of the research consisted of semi-structured interviews with dietetic program directors, preceptors, practitioners, and non-dietetic allied health educators. A total of 100 themes emerged from an inductive content analysis coding method. Participants in the second segment sorted previously identified themes (100 items) into predetermined categories reflective of the constructs of deliberate practice. An instrument was created of the 55 items retained, from segment two, for use in segment three, which consisted of pilot testing the instrument. Face and content validity of the instrument were tested, and initial reliability estimates were \u3e.70 for most categories. Instrument evaluation from the pilot testing resulted in a 55-item instrument to be tested in segment four. Lastly, all items were subject to factor analysis resulting in a seven-
factor solution with 32 items accounting for 59.72% of the shared variance. Deliberate practice within supervised dietetics education can be defined with the following characteristics: (1) opportunities to practice skills and hone knowledge; (2) experiential practice to develop innate talent; (3) skills focused on a high level of patient-centered nutrition care; (4) frequent and ongoing feedback; (5) reading and understanding evidence-based practice literature; (6) professional education and networking opportunities; and (7) environment where the student is free to make mistakes. The applied purpose of this research provides an initial definition of deliberate practice, which lays the foundation for further validation studies of the final constructed definition of deliberate practice in dietetics with the benefit of outlining which practice activities are appropriate in the education of a RD
Robust audio sensing with multi-sound classification
Audio data is a highly rich form of information, often containing patterns with unique acoustic signatures. In pervasive sensing environments, because of the empowered smart devices, we have witnessed an increasing research interest in sound sensing to detect ambient environment, recognise users' daily activities, and infer their health conditions. However, the main challenge is that the real-world environment often contains multiple sound sources, which can significantly compromise the robustness of the above environment, event, and activity detection applications. In this paper, we explore different approaches in multi-sound classification, and propose a stacked classifier based on the recent advance in deep learning. We evaluate our proposed approach in a comprehensive set of experiments on both sound effect and real-world datasets. The results have demonstrated that our approach can robustly identify each sound category among mixed acoustic signals, without the need of any a priori knowledge about the number and signature of sounds in the mixed signals.Postprin
MEDIDAS DE REDUÇÃO DE GERAÇÃO DE RESÍDUOS SÓLIDOS NA CONSTRUÇÃO CIVIL COMO ATENDIMENTO DOS REQUISITOS DE SUSTENTABILIDADE DO PBQP-H/SIAC
The construction sector is a major source of solid waste generation in the country. Studies indicate that the amount of waste generated by buildings has intensified due to the growth of the urban population. Untreated solid waste without proper disposal has negative consequences for the environment and population. The problem is due to the fact that much of the construction sector neglects the standards and laws that address the sustainability theme and because they are unaware of the deplorable costs of solid waste generation. This article aims to present, through exploratory research, how the construction sector can manage the reduction of solid waste generation in order to have a control and monitoring throughout the work life cycle. Finally, through this article it was possible to conclude that it is possible to reduce solid waste generation by developing a solid waste management plan structured in PBQP-H / Siac, Brazilian Habitat Quality and Productivity Program and Evaluation System. Compliance of Civil Service and Construction Companies, which establishes criteria for reduction of solid waste generated. Planning strategies for the reduction of this waste is an act that benefits nature in terms of sustainability and also has positive consequences for the construction industry by reducing costs with quality improvement.O setor da construção civil é grande fonte geradora de resíduos sólidos no país. Estudos apontam que a quantidade de resíduos gerados pelas construções se intensificaram devido ao crescimento da população urbana. Resíduos sólidos não tratados e sem destinação final adequada trazem consequências negativas para o meio ambiente e população. A problemática se dá pelo fato de grande parte do setor da construção civil negligenciar as normas e leis que contemplam o tema sustentabilidade e por desconhecerem os custos deploráveis da geração de resíduos sólidos. O presente artigo tem como objetivo apresentar, através de pesquisas exploratórias, como o setor da construção civil poderá gerenciar a redução da geração de resíduos sólidos de forma que se tenha um controle e monitoramento em todo o ciclo de vida da obra. Por fim, através do presente artigo foi possível concluir que a redução da geração de resíduos sólidos será obtida ao desenvolver um adequado plano de gerenciamento de resíduos sólidos estruturado no PBQP-H/SiAC, Programa Brasileiro da Qualidade e Produtividade do Habitat e Sistema de Avaliação da Conformidade de Empresas de Serviços e Obras da Construção Civil, que estabelece critérios para redução dos resíduos sólidos gerados. Planejar estratégias para a redução desses resíduos é um ato que beneficia a natureza no quesito sustentabilidade e também traz consequências positivas para o setor da construção civil através da redução de custos com melhoria da qualidade
Alternative Summer Break Academic Library Internship: Exploring Professional Engagement as an Acting Librarian
This poster session visualizes an innovative Alternative Summer Break Academic Library Internship program for current or recently graduated library and information science (LIS) students. Currently in its fourth year, the program provides opportunities for graduate students to experience professional engagement in a real academic library. Logistics, planning, recruitment, management, and lessons learned will be shared, which will provide valuable insights for libraries wishing to build similar programs. Prospective interns will learn about the structure of the program, expectations and outcomes, and how to apply
Effects of brassinosteroid, auxin, and cytokinin on ethylene production in Arabidopsis thaliana plants
Inflorescence stalks produced the highest amount of ethylene in response to IAA as compared with other plant parts tested. Leaf age had an effect on IAA-induced ethylene with the youngest leaves showing the greatest stimulation. The highest amount of IAA-induced ethylene was produced in the root or inflorescence tip with regions below this producing less. Inflorescence stalks treated with IAA, 2,4-D, or NAA over a range of concentrations exhibited an increase in ethylene production starting at 1 μM with increasingly greater responses up to 100 μM, followed by a plateau at 500 μM and a significant decline at 1000 μM. Both 2,4-D and NAA elicited a greater response than IAA at all concentrations tested in inflorescence stalks. Inflorescence leaves treated with IAA, 2,4-D, or NAA exhibited the same trend as inflorescence stalks. However, they produced significantly less ethylene. Inflorescence stalks and leaves treated with 100 μM IAA exhibited a dramatic increase in ethylene production 2 h following treatment initiation. Inflorescence stalks showed a further increase 4 h following treatment initiation and no further increase at 6 h. However, there was a slight decline between 6 h and 24 h. Inflorescence leaves exhibited similar rates of IAA-induced ethylene between 2 h and 24 h. Light and high temperature caused a decrease in IAA-induced ethylene in both inflorescence stalks and leaves. Three auxin-insensitive mutants were evaluated for their inflorescence's responsiveness to IAA. aux2 did not produce ethylene in response to 100 μM IAA, while axr1-3 and axr1-12 showed reduced levels of IAA-induced ethylene as compared with Columbia wild type. Inflorescences treated with brassinolide alone had no effect on ethylene production. However, when brassinolide was used in combination with IAA there was a dramatic increase in ethylene production above the induction promoted by IAA alone
Differential expression of the brassinosteroid receptor-encoding BRI1 gene in Arabidopsis
Abstract Brassinosteroid (BR)-regulated growth and
development in Arabidopsis depends on BRASSINOSTEROID
INSENSITIVE 1 (BRI1), the BR receptor that
is responsible for initiating the events of BR signalling.
We analysed the temporal and spatial regulation of BRI1
expression using stable transgenic lines that carried BRI1
promoter:reporter fusions. In both seedlings and mature
plants the tissues undergoing elongation or differentiation
showed elevated BRI1 gene activity, and it could be
demonstrated that in the hypocotyl this was accompanied
by accumulation of the BRI1 transcript and its receptor
protein product. In seedlings the BRI1 promoter was also
found to be under diurnal regulation, determined primarily
by light repression and a superimposed circadian control.
To determine the functional importance of transcriptional
regulation we complemented the severely BR insensitive
bri1-101 mutant with a BRI1-luciferase fusion construct
that was driven by promoters with contrasting specificities.
Whereas the BRI1 promoter-driven transgene fully restored the wild phenotype, expression from the photosynthesisassociated
CAB3 and the vasculature-specific SUC2 and
ATHB8 promoters resulted in plants with varying morphogenic
defects. Our results reveal complex differential regulation
of BRI1 expression, and suggest that by influencing
the distribution and abundance of the receptor this regulation
can enhance or attenuate BR signalling
Validating the Psychosocial Functioning during COVID-19 Questionnaire among a Sample of Informal Caregivers
The COVID-19 pandemic has had a dramatic impact on global economies and societies. Although social distancing policies are needed to contain the spread and impact of COVID-19, they also impose a psychological and economic burden on people who are already experiencing increased distress such as caregivers. Yet, few measures have been developed and validated to measure the psychosocial impact of COVID-19. Utilizing item response theory (IRT), the purpose of this study was to develop and psychometrically validate a measure of psychosocial functioning—the Psychosocial Functioning during COVID-19 (PFC-19) Questionnaire—to assess changes in social interaction, mental health, health behavior, and global functioning among a sample of informal caregivers during the COVID-19 pandemic. The analytic sample (n = 733) was recruited from Amazon Mechanic Turk (MTurk) (69% male, 55% white). Results suggest a two-factor measure, assessing global functioning (14 items) and affective response (8 items), with strong evidence for reliability, validity, and dimensionality. Future research should replicate this factor structure in other samples
The Arabidopsis thaliana Brassinosteroid Receptor (AtBRI1) Contains a Domain that Functions as a Guanylyl Cyclase In Vitro
BACKGROUND: Guanylyl cyclases (GCs) catalyze the formation of the second messenger guanosine 3′,5′-cyclic monophosphate (cGMP) from guanosine 5′-triphosphate (GTP). Cyclic GMP has been implicated in an increasing number of plant processes, including responses to abiotic stresses such as dehydration and salt, as well as hormones. PRINCIPLE FINDINGS: Here we used a rational search strategy based on conserved and functionally assigned residues in the catalytic centre of annotated GCs to identify candidate GCs in Arabidopsis thaliana and show that one of the candidates is the brassinosteroid receptor AtBR1, a leucine rich repeat receptor like kinase. We have cloned and expressed a 114 amino acid recombinant protein (AtBR1-GC) that harbours the putative catalytic domain, and demonstrate that this molecule can convert GTP to cGMP in vitro. CONCLUSIONS: Our results suggest that AtBR1 may belong to a novel class of GCs that contains both a cytosolic kinase and GC domain, and thus have a domain organisation that is not dissimilar to that of atrial natriuretic peptide receptors, NPR1 and NPR2. The findings also suggest that cGMP may have a role as a second messenger in brassinosteroid signalling. In addition, it is conceivable that other proteins containing the extended GC search motif may also have catalytic activity, thus implying that a significant number of GCs, both in plants and animals, remain to be discovered, and this is in keeping with the fact that the single cellular green alga Chlamydomonas reinhardtii contains over 90 annotated putative CGs
CESTA, a positive regulator of brassinosteroid biosynthesis
Brassinosteroids are important plant hormones involved in the regulation of cell elongation, division, differentiation and development. This study identifies CESTA as a basic helix-loop-helix transcription factor that positively regulates brassinosteroid homeostasis
Changes induced by Cu2+ and Cr6+ metal stress in polyamines, auxins, abscisic acid titers and antioxidative enzymes activities of radish seedlings
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