Hierarchical Bin Buffering: Online Local Moments for Dynamic External Memory Arrays

Local moments are used for local regression, to compute statistical measures such as sums, averages, and standard deviations, and to approximate probability distributions. We consider the case where the data source is a very large I/O array of size n and we want to compute the first N local moments, for some constant N. Without precomputation, this requires O(n) time. We develop a sequence of algorithms of increasing sophistication that use precomputation and additional buffer space to speed up queries. The simpler algorithms partition the I/O array into consecutive ranges called bins, and they are applicable not only to local-moment queries, but also to algebraic queries (MAX, AVERAGE, SUM, etc.). With N buffers of size sqrt{n}, time complexity drops to O(sqrt n). A more sophisticated approach uses hierarchical buffering and has a logarithmic time complexity (O(b log_b n)), when using N hierarchical buffers of size n/b. Using Overlapped Bin Buffering, we show that only a single buffer is needed, as with wavelet-based algorithms, but using much less storage. Applications exist in multidimensional and statistical databases over massive data sets, interactive image processing, and visualization

Fidelity of implementation of activity-based intervention in daycare

Despite the recognized effectiveness of naturalistic intervention practices, including activity-based intervention (ABI), challenges remain regarding their implementation. Assessing implementation fidelity can help understand factors that may influence their implementation. This study aims to document the evolution of ABI implementation fidelity (Adherence, Dosage, Quality and Participant responsiveness) in daycare settings following professional development. The participants are four educators. The current study uses an embedded design. The predominant aspect is quantitative, that is, single-case research design with three measurement phases of 12 observation moments. In terms of Dosage, an increase in the frequency of learning opportunities offered by educators is observed as the experiment progresses. For three educators, results show moderate and significant effects of professional development between Phases 1 and 3. A slight decrease in Quality can be observed when learning opportunities are adapted to children's developmental levels. This article highlights the importance of documenting several components of implementation fidelity. © 2021 Informa UK Limited, trading as Taylor & Francis Group

Inclusion in Quebec childcare centers: financial support, adaptation, and training

Abstract Background: Inclusion in childcare centers involves a support system that includes funding policies, inclusive practices and access to ongoing training. The province of Quebec (Canada) benefits from a network of subsidized childcare services for children from birth to 5 years old. Although two financial measures support educational childcare centers welcoming children with disabilities, there is a lack of knowledge about how these measures are used. Research questions: The research questions are: (1) How do childcare centers use financial measures to support inclusion? (2) What adaptations are made in childcare centers? and (3) What is the ongoing training of educators to support inclusion? Method: This research presents the results of an online survey completed by 94 childcare management staff and 154 childcare educators. The survey was developed using a two-way process involving the researchers along with representatives from government ministries and agencies and childcare management staff. Results: Results reveal that just over half of management staff request financial measures for all children with special needs and does so mainly to hire additional and specialized human resources and replace staff in meetings with specialized services. The financial measures are perceived to meet material adaptation needs better than those for human resources. Adaptations made by educators relate to instructions, individual interventions, equipment, group activities, physical environment, and schedule and routines. Over half the educators report that adaptations involving group activities and schedules and routines are the most difficult to implement. Less than half the managers and educators had received ongoing training on inclusive practices. Issues addressed during such training include commonly recognized interventions based on diagnoses, collaboration with parents, collaboration with partner agencies or institutions, instructions, individual interventions, group activities, equipment, physical environment, and schedules and routines. Discussion: Results are discussed in terms of (1) needs met and funding model, and (2) dimensions of quality inclusive practices such as leadership of childcare management staff, training and professional development, collaboration with health and specialized social services, learning environments and partnership with families

Congenital anterolateral tibial bowing and polydactyly: a case report

Congenital anterolateral bowing of the tibia is a rare deformity that may lead to pseudarthrosis and risk of fracture. This is commonly associated with neurofibromatosis type 1. In this report, we describe a 15-month old male with congenital anterolateral bowing of the right tibia and associated hallux duplication. This is a distinct entity with a generally favourable prognosis that should not be confused with other conditions such as neurofibromatosis type 1. Previously published cases are reviewed

The NCI/NIH Cancer Moonshot BioBank (CMB) and the Maine Cancer Genetics/Genomics Education Core (ME-CGEC) Collaborate to Improve Cancer Care in Maine

Goal: To better understand drug resistance and sensitivity in patients with late stage (Stage III & IV) cancers that are receiving standard of care molecularly targeted therapies through next generation sequencing (NGS) of biopsy and blood samples collected longitudinally (diagnosis-- treatment--progression).https://knowledgeconnection.mainehealth.org/lambrew-retreat-2021/1053/thumbnail.jp

Factors associated with back pain in children aged 6 to 12 years of age, an eight months prospective study

Associated factors of back pain (BP) development before puberty and its persistence are poorly documented. We investigated the association and possible temporality between prior BP history (PBPH), muscular endurance (ME), aerobic capacity (AC), sport activity variables (SAV) and BP in children aged 6 to 12. We collected baseline characteristics (demographics, PBPH, ME, AC and SAV) of children from three primary schools in Canada. Parents replied to weekly text messages regarding their children BP status over an 8-month period. Logistic regression models were adjusted for potential confounders. Data from 242 children (46% female; 8.6 ± 1.7 years) were included. Over the 8-month survey BP prevalence was 48.1%, while the cumulative incidence was 31.9%. The occurrence of at least one BP event was associated with PBPH [OR (IC 95%) = 6.33 (2.35–17.04)] and high AC [2.89 (1.21–6.90)]. High AC was also associated with the development of a first BP episode [2.78 (1.09–7.07)], but ME and SAV were not. BP appears to be relatively common before puberty. BP history seems to be strongly associated with BP recurrence in children. Aerobic capacity is associated with first BP episode development

Method for fabricating submicron silicide structures on silicon using a resistless electron beam lithography process

Abstract : A novel resistless lithography process using a conventional electron beam system is presented. Metallic lines with widths of less than 50 nm were produced on silicon substrates. The process is based on localized heating with a focused electron beam of thin platinum layers deposited on silicon. It is demonstrated that silicide formation occurs at the Pt-Si interface. By using a dilute solution of aqua regia, it is possible to obtain a sufficient difference in etch rates between exposed and unexposed regions of the platinum thin film to selectively remove only the unexposed areas

Towards a better understanding of the benefits and risks of country food consumption using the case of walruses in Nunavik (Northern Quebec, Canada)

Food insecurity affects Inuit communities. One solution is to consume locally harvested foods, named country foods. However, some country foods are not eaten as often as before, and pressures including contaminants and environmental changes threaten the health of Arctic fauna, thus its suitability for local consumption. By combining Inuit Knowledge with laboratory data, our study assessed the benefits and risks of walrus consumption by Inuit in Nunavik, Québec, Canada. It aimed to increase understanding of: 1) the hunt of healthy Atlantic walruses (Odobenus rosmarus rosmarus); 2) the safe preparation of walruses; 3) the nutritional benefits and risks of consuming walruses. To do so, we interviewed 34 hunters and Elders from Nunavik. Levels of mercury, omega-3 polyunsaturated fatty acids and selenium were evaluated from locally harvested walruses. Through the Nunavik Trichinellosis Prevention Program, a total of 755 Atlantic walrus samples, collected between 1994 and 2013, were tested for Trichinella nativa. Information on botulism was reviewed. While interviews informed on how to select healthy walruses and prepare them for consumption, laboratory analyses revealed that walruses had elevated levels of omega-3 fatty acids and selenium but low levels of mercury compared to some other wildlife. Only 3% of the 755 walruses were infected with T. nativa. Most walruses' infections were found within individuals from the South East Hudson Bay stock, where Inuit have thus decided to stop hunting since mid-2000s. Finally, although the number of outbreaks of trichinellosis related to the consumption of walruses has significantly reduced in Nunavik, botulism could continue to be an issue when igunaq (i.e. aged walrus) is not properly prepared. With the support of the Nunavik Trichinellosis Prevention Program and transmission of Inuit knowledge on igunaq preparation, the consumption of Atlantic walruses has the potential to help address issues related to food insecurity in Nunavik in the future