8,282 research outputs found

    Early Childhood Education in Buffalo, New York

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    The National Association for the Education of Young Children (NAEYC) defines early childhood education as the learning experience of a child from birth to age eight. It is generally agreed that the human brain undergoes great growth and change in the years before age five. High-quality early childhood education will include development of a child’s cognition, language, motor, adaptive, social, and emotional skills

    Every Other Day

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    There is a problem on our campus—a problem of sexual assault and its perpetuation due to unnecessary silence. Current compulsory education on the topic through AlcoholEdu and First-Year Orientation are often turned into jokes because of course everyone knows not to rape and not to put yourself in a dangerous situation. The concept doesn’t seem real until a Campus Safety Alert reports that one of our students has been sexually assaulted. But even then, we get those so infrequently that it couldn’t be that much of an issue, right? [excerpt

    Think Happy Thoughts : Peter Pan as a Tragic Hero

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    Using Aristotle\u27s definition of the tragic hero, this work will explore J.M. Barrie\u27s novel, Peter and Wendy, and how Peter is a tragic figure. In this paper I argue that Peter Pan is not only a tragic hero whose human frailty— in Peter’s case, his fear of growing old— causes him to make the terrible mistake of rejecting his own development of humanity and the opportunity for redemption through maternal love, but that Barrie uses Peter to emphasize that, contrary to the Romantic conception of childhood, children need the guidance of parents in order to live a fulfilling life

    A Control Model: Interpretation of Fitts' Law

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    The analytical results for several models are given: a first order model where it is assumed that the hand velocity can be directly controlled, and a second order model where it is assumed that the hand acceleration can be directly controlled. Two different types of control-laws are investigated. One is linear function of the hand error and error rate; the other is the time-optimal control law. Results show that the first and second order models with the linear control-law produce a movement time (MT) function with the exact form of the Fitts' Law. The control-law interpretation implies that the effect of target width on MT must be a result of the vertical motion which elevates the hand from the starting point and drops it on the target at the target edge. The time optimal control law did not produce a movement-time formula simular to Fitt's Law

    Simulation evaluation of combined 4D RNAV and airborne traffic situation displays and procedures applied to terminal aerial maneuvers

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    Simulation scenarios were developed in which subject pilots must simultaneously follow a 3D terminal airspace structure and arrive at fixed waypoints within the structure precisely at pre-scheduled times in the presence of a full range of wind conditions aloft, and monitor nearby traffic on an airborne traffic situation display, especially during merging and spacing operations, and detect blunders and resolve conflicts in a safe manner. Open-loop simulator tests of the single-stage 4D RNAV algorithm indicate that a descending pilot can comply quite closely with an assigned time of arrival at a 3D waypoint simply by tracking a pre-calculated speed profile. Initial experiments show that the aircraft arrives at the 3D waypoint within a few seconds of the anticipated time. The presence of headwinds or tailwinds does not affect the arrival time error as long as the wind is accurately modeled in the descent algorithm. Results all but quarantee that a 5 second standard deviation in arrival time error can be realized in closed-loop descents at very moderate pilot workload levels

    Commemorating the Great War on film: veterans, pilgrimages and amateur filmmaking

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    This article explores the work of four amateur filmmakers from the Canterbury, area (UK), between the late 1920s and early 1970s focusing on the films relating to the battlefield visits of First World War veterans and their families. It argues that film provides a fascinating insight into veteran behaviour and culture. Of particular interest is the manner in which the films reveal the continuities and developments in the behaviour of ex-servicemen. The films of the late 1920s and 1930s reveal a highly masculine culture which remained closely aligned with military ceremonial and codes of conduct, whereas the later, post-1945, films show the veterans with wives and family members engaging in a wider range of activities. The article also sets the films within the culture of amateur filmmaking of the time discussing equipment, techniques and exhibition, thus engaging with an element of film history which remains under-explored compared with the degree of research commercial cinema has attracted. The article is supplemented by a short film providing excerpts from all films discussed

    Hypoconstrained Jammed Packings of Nonspherical Hard Particles: Ellipses and Ellipsoids

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    Continuing on recent computational and experimental work on jammed packings of hard ellipsoids [Donev et al., Science, vol. 303, 990-993] we consider jamming in packings of smooth strictly convex nonspherical hard particles. We explain why the isocounting conjecture, which states that for large disordered jammed packings the average contact number per particle is twice the number of degrees of freedom per particle (\bar{Z}=2d_{f}), does not apply to nonspherical particles. We develop first- and second-order conditions for jamming, and demonstrate that packings of nonspherical particles can be jammed even though they are hypoconstrained (\bar{Z}<2d_{f}). We apply an algorithm using these conditions to computer-generated hypoconstrained ellipsoid and ellipse packings and demonstrate that our algorithm does produce jammed packings, even close to the sphere point. We also consider packings that are nearly jammed and draw connections to packings of deformable (but stiff) particles. Finally, we consider the jamming conditions for nearly spherical particles and explain quantitatively the behavior we observe in the vicinity of the sphere point.Comment: 33 pages, third revisio

    Epigenetic modification of the oxytocin receptor gene is associated with emotion processing in the infant brain

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    The neural capacity to discriminate between emotions emerges early in development, though little is known about specific factors that contribute to variability in this vital skill during infancy. In adults, DNA methylation of the oxytocin receptor gene (OXTRm) is an epigenetic modification that is variable, predictive of gene expression, and has been linked to autism spectrum disorder and the neural response to social cues. It is unknown whether OXTRm is variable in infants, and whether it is predictive of early social function. Implementing a developmental neuroimaging epigenetics approach in a large sample of infants (N = 98), we examined whether OXTRm is associated with neural responses to emotional expressions. OXTRm was assessed at 5 months of age. At 7 months of age, infants viewed happy, angry, and fearful faces while functional near-infrared spectroscopy was recorded. We observed that OXTRm shows considerable variability among infants. Critically, infants with higher OXTRm show enhanced responses to anger and fear and attenuated responses to happiness in right inferior frontal cortex, a region implicated in emotion processing through action-perception coupling. Findings support models emphasizing oxytocin's role in modulating neural response to emotion and identify OXTRm as an epigenetic mark contributing to early brain function

    Numerical analysis of pulse pedestal and dynamic chirp formation on picosecond modelocked laser pulses after propagation through a semiconductor optical amplifier

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    A numerical analysis, based on a modified Schrodinger equation, of the formation of pulse pedestals and dynamic chirp formation on picosecond pulses after propagation through a semiconductor optical amplifier is presented. The numerical predictions are confirmed by an experiment that utilises the frequency resolved optical gating technique for the amplified pulse characterisation
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