Miracle-dz/UniFAR-FTUs huggingface dataset:
Perceptions of Canadian Indigenous teachers and students on movement integration in the classroom

Abstract The focus of this article is understanding the perceptions that Canadian Indigenous teachers and students have on a novel physical activity teaching method that is utilised in the classroom. We explore the role that physical activity plays in the healthy growth and development of children, with special attention to Indigenous children. Through participatory action research and qualitative methods, Indigenous teachers and students share their thoughts on physical activity in the classroom and the barriers and facilitators that exist to implementing classroom physical activity. This work is discussed in the context of the recent Truth and Reconciliation Commission of Canada and provides the reader with tangible suggestions for movement integration in the classroom.
Adolescent Parenting: A Positive, Intergenerational Approach

The authors studied adolescent parents' confidence in various parenting situations, support systems, and areas of assistance that would enhance their competence in handling the daily stresses of parenthood. Mothers of adolescent parents were also asked to share their views regarding these issues. Although the majority of adolescent parents reported feeling confident in their parenting roles, all were receptive to formal and informal assistance, including help with decision making, obtaining employment, budgeting, and emotional support from friends and family. Mothers of adolescent parents reported that they were confident in their child's parenting abilities but believed that further assistance would enhance their child's competence as a parent. The implications of these intergenerational findings are discussed.
Touchpad-Driven Haptic Communication using a Palm- Sized Vibrotactile Array with an Open-Hardware Controller Design

We demonstrate a 30-element vibrotactile array that fits the palm of a large-handed user. The array is driven by input to a touchpad, thereby allowing one user to haptically "draw" on a remote user's hand. Pulse-width modulation is used to control tactor intensity, and the multiple intensity levels are used by an anti-aliasing procedure that allows the array to represent changes at a sub-tactor resolution and produce smoother sensations. The array includes an open-hardware controller design useful for other applications.
ALGEBRAIC TORI — THIRTY YEARS AFTER © c 2007

This paper is an extended version of my talk given at the International Conference ”Algebra and Number Theory” dedicated to the 80th anniversary of Prof. V.E. Voskresenskĭı, which was held at the Samara State University in May 2007. The goal is to give an overview of results by V.E. Voskresenskĭı on arithmetic and birational properties of algebraic tori which culminated in his monograph [82] published 30 years ago. We put these results and ideas into somehow broader context and also to give a brief digest of the relevant activity related to the period after the English version of the monograph [83] has been published.
Description logics for matchmaking of services

Matchmaking is an important aspect of E-Commerce interactions. The current trend in B2B E-Commerce automation is towards complex interactions for service provision. In this context, matchmaking services require rich and flexible metadata as well as matching algorithms. The Semantic Web initiative at W3C is gaining momentum and generating suitable technologies and tools to cover both the metadata and the algorithmic aspects. In this paper we describe our experience in building a matchmaking prototype. We choose to base our prototype on a Description Logic (DL) reasoner, operating on service descriptions in DAML+OIL. We report on our investigation of DAML+OIL to express service descriptions and on our experience on existing DL reasoners, in particular assessing RACER and FACT.
Acquiring Epistemic Modal Auxiliaries: The Role of Theory of Mind

Abstract This study considers the acquisition of epistemic modal auxiliaries (EMA) in typically developing (TD) and autistic children and the role that Theory of Mind (ToM) plays in this development. Nineteen Dutch-speaking TD children and ten autistic children received tasks assessing ToM, general linguistic ability and EMA comprehension. Results suggest that both groups have some understanding of the Dutch EMA system, but no significant differences were found between groups. However, once participants were divided into ToM passers and ToM failers irrespective of clinical diagnosis, results showed that passers performed significantly better than failers on EMA understanding. Having a good understanding of others’ mental states, as evidenced by full marks on ToM tasks, thus seems important in the acquisition of EMA.
Dementia, quantitative neuroimaging, and apolipoprotein E genotype.

BACKGROUND AND PURPOSE Quantitative MR imaging differences in an elderly population of subjects with various clinical disorders (including dementia, particularly Alzheimer's disease and vascular dementia) and disorders of mild cognitive impairment were examined. Potential quantitative MR differences were assessed by presence or absence of the apolipoprotein E (APOE) epsilon4 allele and by level of cognitive deficit. METHODS One hundred eighty subjects with a diagnosis of dementia or other clinical disorders were identified from an eligible population of 5,677 elderly individuals. Age, duration of disease, and head size (where appropriate) were considered as covariates. APOE genotype was determined by polymerase chain reaction using buccal material. Axial and coronal intermediate- and T2-weighted MR images were quantified using a multispectral segmentation algorithm. Cognitive status was assessed by means of a modified Mini-Mental Status Examination. RESULTS All types of dementing illness showed significant volume reductions in the majority of structures examined, particularly in the total brain, hippocampus, and white and gray matter, and increased CSF and ventricular volumes. Subjects with mild cognitive impairment showed fewer atrophic changes but were still distinguishable from the 24 control subjects. Presence of an epsilon4 allele was associated with smaller hippocampal volume in subjects with Alzheimer's disease and vascular dementia within just 1 year of disease onset. For other analyses, atrophy related to the presence of the epsilon4 allele disappeared after controlling for age and length of disease. CONCLUSION The effects of the epsilon4 allele on brain morphology may be subtly expressed early in the development of dementia, but do not specifically affect cerebral atrophy thereafter. Cognitive impairment is associated with atrophy irrespective of diagnosis and presence of epsilon4.
Aggregates of acetylcholine receptors are associated with plaques of a basal lamina heparan sulfate proteoglycan on the surface of skeletal muscle fibers

Hybridoma techniques have been used to generate monoclonal antibodies to an antigen concentrated in the basal lamina at the Xenopus laevis neuromuscular junction. The antibodies selectively precipitate a high molecular weight heparan sulfate proteoglycan from conditioned medium of muscle cultures grown in the presence of [35S]methionine or [35S]sulfate. Electron microscope autoradiography of adult X. laevis muscle fibers exposed to 125I-labeled antibody confirms that the antigen is localized within the basal lamina of skeletal muscle fibers and is concentrated at least fivefold within the specialized basal lamina at the neuromuscular junction. Fluorescence immunocytochemical experiments suggest that a similar proteoglycan is also present in other basement membranes, including those associated with blood vessels, myelinated axons, nerve sheath, and notochord. During development in culture, the surface of embryonic muscle cells displays a conspicuously non-uniform distribution of this basal lamina proteoglycan, consisting of large areas with a low antigen site-density and a variety of discrete plaques and fibrils. Clusters of acetylcholine receptors that form on muscle cells cultured without nerve are invariably associated with adjacent, congruent plaques containing basal lamina proteoglycan. This is also true for clusters of junctional receptors formed during synaptogenesis in vitro. This correlation indicates that the spatial organization of receptor and proteoglycan is coordinately regulated, and suggests that interactions between these two species may contribute to the localization of acetylcholine receptors at the neuromuscular junction.
Iron Labeling and Pre-Clinical MRI Visualization of Therapeutic Human Neural Stem Cells in a Murine Glioma Model

Background Treatment strategies for the highly invasive brain tumor, glioblastoma multiforme, require that cells which have invaded into the surrounding brain be specifically targeted. The inherent tumor-tropism of neural stem cells (NSCs) to primary and invasive tumor foci can be exploited to deliver therapeutics to invasive brain tumor cells in humans. Use of the strategy of converting prodrug to drug via therapeutic transgenes delivered by immortalized therapeutic NSC lines have shown efficacy in animal models. Thus therapeutic NSCs are being proposed for use in human brain tumor clinical trials. In the context of NSC-based therapies, MRI can be used both to non-invasively follow dynamic spatio-temporal patterns of the NSC tumor targeting allowing for the optimization of treatment strategies and to assess efficacy of the therapy. Iron-labeling of cells allows their presence to be visualized and tracked by MRI. Thus we aimed to iron-label therapeutic NSCs without affecting their cellular physiology using a method likely to gain United States Federal Drug Administration (FDA) approval. Methodology For human use, the characteristics of therapeutic Neural Stem Cells must be clearly defined with any pertubation to the cell including iron labeling requiring reanalysis of cellular physiology. Here, we studied the effect of iron-loading of the therapeutic NSCs, with ferumoxide-protamine sulfate complex (FE-Pro) on viability, proliferation, migratory properties and transgene expression, when compared to non-labeled cells. FE-Pro labeled NSCs were imaged by MRI at tumor sites, after intracranial administration into the hemisphere contralateral to the tumor, in an orthotopic human glioma xenograft mouse model. Conclusion FE-Pro labeled NSCs retain their proliferative status, tumor tropism, and maintain stem cell character, while allowing in vivo cellular MRI tracking at 7 Tesla, to monitor their real-time migration and distribution at brain tumor sites. Of significance, this work directly supports the use of FE-Pro-labeled NSCs for real-time tracking in the clinical trial under development: “A Pilot Feasibility Study of Oral 5-Fluorocytosine and Genetically modified Neural Stem Cells Expressing Escherichia coli Cytosine Deaminase for Treatment of Recurrent High-Grade Gliomas”.
Eco-theology: In and out of the Wilderness

It is argued that any attempt by eco-theologians to interpret the biblical concept of the wilderness in a more positive light, would be futile. However, by stripping the biblical wilderness metaphor from its magico-mythical assumptions we can construct new meaning by applying general biblical ethics such as love your neighbour as yourself to the wilderness. Often this will involve reading against the grain of biblical texts dealing with the wilderness, but this should only challenge us to go beyond the text and measure it against the core ethical principles of the Bible. Without caring for the wilderness, we jeopardise the livelihood of future generations and deny them the possibility of enjoying the psychological and aesthetical benefits of the wilderness.
Energy transfer and its effects on the secondaries in W Ursae Majoris type contact binaries

Based on the physical parameters of 133 W Ursae Majoris (W UMa) type contact binaries, energy transfer and its effects on the secondaries in W UMa contact binaries are investigated. Relations are given between the mass ratio (q) for W UMa contact binaries and the relative energy transfer rates, i.e. U(1), the ratio of the transferred luminosity to the surface luminosity of the primary, and U(2), the ratio of the transferred luminosity to the nuclear luminosity of the secondary. The theoretical curves(U(1) versus q and U(2) versus q) are derived based on various assumptions: that the two components in each W UMa system are nearly identical in effective temperature and just fill their inner Roche lobes, and the primaries are zero-age main-sequence stars. Although these curves can reflect the distribution of U(1) and U(2) versus q, some observational systems deviate significantly from these curves. This results mainly from the difference in effective temperatures of the components of W UMa systems. The radius and the density of the secondary are related to the relative energy transfer rate U(2): the higher U(2), the greater the expansion and the lower the density of the secondary in a W UMa system. In addition, it is found that the temperature difference of W UMa binary components is correlated with the relative energy transfer rate U(1) and decreases with increasing U(1). This might suggest that there is a thermal coupling between the two components in W UMa contact binaries, and that the classification of W UMa contact binaries into A or W types depends on the energy transfer from the primary to the secondary. The temperature difference of W UMa binary components is poorly correlated with the mass of the primary. This suggests that the properties of the common envelope of a W UMa contact binary might not have a significant effect on the energy transfer between the two components.
A Test of the Standard Hypothesis for the Origin of the H I Holes in Holmberg II

The nearby irregular galaxy Holmberg II (Ho II, DDO 50) has been extensively mapped in H I using the Very Large Array, revealing intricate structure in its interstellar gas component, as reported by Puche et al. in 1992. An analysis of these structures shows the neutral gas to contain a number of expanding H I holes. The formation of the H I holes has been attributed to multiple supernova (SN) events occurring within wind-blown shells around young, massive star clusters, with as many as 10–200 SNe required to produce many of the holes. From the sizes and expansion velocities of the holes, Puche et al. assigned ages of ∼107 to 108 years. If the SN scenario for the formation of the H I holes is correct, it implies the existence of star clusters with a substantial population of late B, A, and F main-sequence stars at the centers of the holes. Many of these clusters should be detectable in deep ground-based CCD images of the galaxy. To test the SN hypothesis for the formation of the H I holes, we have obtained and analyzed deep broadband BVR and narrowband Hα images of Ho II. We compare the optical and H I data and search for evidence of the expected star clusters in and around the H I holes. We also use the H I data to constrain models of the expected remnant stellar population. Assuming that the H I holes are created by multiple SNe, that the number of SNe required can be determined from the observed energetics of the holes, and that the SNe represent the high-mass population of a cluster with a normal initial mass function, we show that in several of the holes the observed upper limits for the remnant cluster brightness are strongly inconsistent with the SN hypothesis described by Puche et al. Moreover, many of the H I holes are located in regions of very low optical surface brightness that show no indication of recent star formation. Here we present our findings, discuss their implications, and explore possible alternative explanations for the existence of the H I holes in Ho II, including the recent suggestion that some of the holes could be produced by gamma-ray burst events.
A syndrome-based hybrid decoder for turbo product codes

We presents a hybrid decoder, which adopts a soft-input soft-output or a hard-input soft-output scheme to decode a row/column vector in each iteration for iterative decoding a turbo product code, based on the syndrome of the row/column vector. Simulation results demonstrate that the decoding complexity can be effectively reduced and the bit-error rate can be improved slightly, compared with a conventional TPC decoder in both serial and parallel decoding manners.
The Cortical Control of Visually Guided Grasping

People have always been fascinated by the exquisite precision and flexibility of the human hand. When hand meets object, we confront the overlapping worlds of sensorimotor and cognitive functions. The complex apparatus of the human hand is used to reach for objects, grasp and lift them, manipulate them, and use them to act on other objects. This review examines what is known about the control of the hand by the cerebral cortex. It compares and summarizes results from behavioral neuroscience, electrophysiology, and neuroimaging to provide a detailed description of the neural circuits that facilitate the formation of grip patterns in human and nonhuman primates. NEUROSCIENTIST 14(2):157—170, 2008. DOI: 10.1177/1073858407312080
Effect of Sintering Temperature on Structural, Dielectric, and Magnetic Properties of Multiferroic YFeO3 Ceramics Fabricated by Spark Plasma Sintering

Based on precursor powders with a size of 200–300 nm prepared by the low-temperature solid reaction method, phase-pure YFeO3 ceramics are fabricated using spark plasma sintering (SPS) at different temperatures. X-ray diffraction (XRD) and scanning electron microscopy (SEM) reveal that the high-purity YFeO3 ceramics can be prepared using SPS, while the results from X-ray photoelectron spectroscopy (XPS) show that the concentration of oxygen vacancies resulting from transformation from Fe3+ to Fe2+ is low. The relative density of the 1000 °C-sintered sample is as high as 97.7%, which is much higher than those of the samples sintered at other temperatures. The present dielectric and magnetic properties are much better than those of the samples fabricated by conventional methods. These findings indicate that the YFeO3 ceramics prepared by the low temperature solid reaction and SPS methods possess excellent dielectric and magnetic properties, making them suitable for potential applications involving magnetic storage.
Nilpotent Orbit Varieties and the Atomic Decomposition of the Q-Kostka Polynomials

Abstract We study the coordinate rings of $k\left[ \overline{{{\text{C}}_{\mu }}}\,\bigcap \,\text{t} \right]$ scheme-theoretic intersections of nilpotent orbit closures with the diagonal matrices. Here ${\mu }'$ gives the Jordan block structure of the nilpotent matrix. de Concini and Procesi [5] proved a conjecture of Kraft [12] that these rings are isomorphic to the cohomology rings of the varieties constructed by Springer [22, 23]. The famous $q$ -Kostka polynomial ${{\tilde{K}}_{\lambda \mu }}(q)$ is the Hilbert series for the multiplicity of the irreducible symmetric group representation indexed by $\lambda $ in the ring $k\left[ \overline{{{\text{C}}_{\mu }}}\,\bigcap \,\text{t} \right]$ . Lascoux and Schützenberger [15, 13] gave combinatorially a decomposition of ${{\tilde{K}}_{\lambda \mu }}(q)$ as a sum of “atomic” polynomials with non-negative integer coefficients, and Lascoux proposed a corresponding decomposition in the cohomology model. Our work provides a geometric interpretation of the atomic decomposition. The Frobenius-splitting results of Mehta and van der Kallen [19] imply a direct-sum decomposition of the ideals of nilpotent orbit closures, arising from the inclusions of the corresponding sets. We carry out the restriction to the diagonal using a recent theorem of Broer [3]. This gives a direct-sum decomposition of the ideals yielding the $k\left[ \overline{{{\text{C}}_{\mu }}}\,\bigcap \,\text{t} \right]$ , and a new proof of the atomic decomposition of the $q$ -Kostka polynomials.
An Intelligent Scan Mechanism for 802.11 Networks by Using Media Independent Information Server (MIIS)

Handover efficiency in wireless and mobile communication networks is an important factor in providing QoS guarantees for real time applications. The 802.11 standard requires a Mobile Node (MN) to scan all the possible channels (11 in the US) to discover available Access Points (AP’s) during a handover. In a given 802.11 cell several channels are expected to be empty. Due to a full scan the MN ends up wasting time scanning empty channels, which results in a high handover delay. This handover delay can be reduced by simple refining the scanning procedure to a limited set of channels, currently being used throughout the network or by the surrounding access points. In this paper we propose to use the Media Independent Information Server (MIIS) to inform the MN of the channel configuration information of the network or the surrounding AP’s. In our scheme the MN acquires channel configuration information from MIIS server and then uses that information to scan a limited set of channels being used by the surrounding access points or through out the network rather than scanning all possible channels resulting in reduced handover delay. We define a parameter NET_CHANNEL_CONFIG which is passed in the query by the MN to the MIIS, so that the MIIS knows which information is being requested by the MN. We also define an Information Element Container IE_CONTAINER_802.11_CHINFO which is used by MIIS to return the requested channel configuration information of the network to the MN. We call our scheme Intelligent Scan.
ANALISIS KESALAHAN SISWA SMK DALAM MENYELESAIKAN SOAL PROGRAM LINIER BERDASARKAN NEWMAN’S ERROR ANALYSIS (NEA) DITINJAU DARI KEMAMPUAN MATEMATIKA

Penelitian ini menggunakan pendekatan kualitatif dan jenis penelitian yang digunakan adalah deskriptif. Pengambilan subyek penelitian ini adalah 40 siswa kelas XI SMK tahun ajaran 2016/2017. Berdasarkan hasil analisis data menunjukkan bahwa tidak ada siswa yang dapat menjawab dengan tahapan yang benar dan terstruktur. Berdasarkan hasil analisis data diperoleh kesimpulan bahwa (1) sebanyak 67,72% siswa yang melakukan kesalahan dalam tahapan memaknai permasalahan (reading) dengan baik. (2) Pada tahapan memahami masalah (comprehension) sebanyak 72,5% siswa. Adapun kesalahan yang dilakukan meliputi: (a) tidak menyajikan apa yang diketahui, (b) kesalahan dalam menyajikan apa yang diketahui, (c) tidak menyajikan apa yang ditanyakan, (d) kesalahan dalam menyajikan apa yang ditanya, (e) tidak mengetahui apa maksud dari pernyataan. (3) Pada tahapan transformasi soal sebanyak 57,14% siswa yang melakukan kesalahan dalam ketidaktahuan metode apa yang akan digunakan. (4) Pada tahapan keterampilan proses sebanyak 52,63% siswa yang mengalami kesalahan dalam proses eliminasi subtitusi. (5) Pada tahapan kesimpulan atau penulisan jawaban akhir sebanyak 34,28% siswa yang melakukan kesalahan. Adapun kesalahannya meliputi: (a) penulisan jawaban akhir yang tidak sesuai dengan konteks soal, (b) tidak menuliskan jawaban akhirnya. Faktor lain yang menyebabkan kesalahan siswa adalah kurangnya pengetahuan dan keterampilan dalam mengubah kalimat verbal ke kalimat matematika, kurangnya ketelitian dalam membaca, tidak memahami maksud dari soal, kurangnya siswa dalam menangkap informasi masalah yang terkandung dalam soal, lupa, kurangnya latihan mengerjakan soal-soal program linier yang variatif.