408 research outputs found
Developing a Performance Assessment System From the Ground Up: Lessons Learned From Three Linked Learning Pathways
This document is designed to offer practitioners -- teachers, principals, and central office administrators -- models, tools, and examples from the Linked Learning field for developing a performance assessment system. This document describes the challenges and successes practitioners encountered when developing and implementing authentic performance-based assessment practices and systems in Linked Learning pathways as well as the conditions that enabled this work. It is the product of a 1-year study of three grade-level teams, located in three different Linked Learning pathways across California. These teams participated in a 2-year performance assessment demonstration project led by ConnectEd and Envision
Depriving Washington State\u27s Incarcerated Youth of an Education: The Debilitating Effects of \u3cem\u3eTunstall v. Bergeson\u3c/em\u3e
The analysis begins in Section II with a general overview and summary of Tunstall v. Bergeson. Section III presents a brief legislative background of the statute at issue in Tunstall, Education Programs for Juvenile Inmates, RCW section 28A.193. Section IV discusses Tunstall\u27s misinterpretation of these statutory provisions, demonstrating the Education Programs for Juvenile Inmates\u27 disregard of the paramount duty to provide education to youth under twenty-one pursuant to the Basic Education Act and violation of the Washington Constitution, as discussed in Section V. Next, Section VI argues that because the right to education is a fundamental right under state law, the Education Programs for Juvenile Inmates statute violates the Equal Protection Clause of the Washington Constitution. Finally, Section VII examines the juvenile inmates\u27 right to special education, both under the state Special Education Act, and the federal Individuals with Disabilities Education Act
A Handbook for Coaches of Women\u27s High School Basketball
In developing a successful basketball program there are certain components that must be present. Creating a philosophy based on the beliefs of the coach and the concept of expectations and goal setting are imperative to long-term success. Organization of the overall program including its philosophy, goals, and how to go about teaching the correct mechanics and ftmdamentals are essential in creating a handbook for women\u27s high school basketball coaches. The purpose of this project was to create a handbook of activities and strategies to be used by individuals who are seeking to coach basketball at the high school level. A review of related literature was conducted. Information from other high school and college basketball programs was gathered, analyzed, and then presented in a high school basketball coaches handbook
Population-Based Fish Consumption Survey and Probabilistic Methylmercury Risk Assessment
A fish consumption survey was developed and administered by telephone to 820 Wyoming fishing license holders. Survey respondents provided the frequency, species, and quantity of Wyoming-caught and store-bought fish consumed for license holder and household members. Deterministic and probabilistic methylmercury exposure distributions were estimated by multiplying fish consumption by species-specific mercury concentrations for each household member. Risk assessments were conducted for children, women of childbearing age, and the rest of the population by comparing methylmercury exposure distributions to levels of concern. The results indicate that probabilistic risk assessment likely provides a more realistic view of the risk to the study population. The results of this study clearly indicate that: (1) there is no level of fish consumption that is without risk of methylmercury exposure, (2) fish advisories may be warranted for children and women of childbearing age, and (3) that store-bought fish generally contribute more to methylmercury exposure than do Wyoming-caught fish
Tight bounds for antidistinguishability and circulant sets of pure quantum states
A set of pure quantum states is said to be antidistinguishable if upon
sampling one at random, there exists a measurement to perfectly determine some
state that was not sampled. We show that antidistinguishability of a set of
pure states is equivalent to a property of its Gram matrix called
-incoherence, thus establishing a connection with quantum resource
theories that lets us apply a wide variety of new tools to
antidistinguishability. As a particular application of our result, we present
an explicit formula (not involving any semidefinite programming) that
determines whether or not a set with a circulant Gram matrix is
antidistinguishable. We also show that if all inner products are smaller than
then the set must be antidistinguishable, and we show
that this bound is tight when . We also give a simpler proof that if
all the inner products are strictly larger than , then the set
cannot be antidistinguishable, and we show that this bound is tight for all
.Comment: 21 pages, 3 figures. Comments welcom
Population-Based Fish Consumption Survey and Probabilistic Methylmercury Risk Assessment
A fish consumption survey was developed and administered by telephone to 820 Wyoming fishing license holders. Survey respondents provided the frequency, species, and quantity of Wyoming-caught and store-bought fish consumed for license holder and household members. Deterministic and probabilistic methylmercury exposure distributions were estimated by multiplying fish consumption by species-specific mercury concentrations for each household member. Risk assessments were conducted for children, women of childbearing age, and the rest of the population by comparing methylmercury exposure distributions to levels of concern. The results indicate that probabilistic risk assessment likely provides a more realistic view of the risk to the study population. The results of this study clearly indicate that: (1) there is no level of fish consumption that is without risk of methylmercury exposure, (2) fish advisories may be warranted for children and women of childbearing age, and (3) that store-bought fish generally contribute more to methylmercury exposure than do Wyoming-caught fish
Extreme radio-wave scattering associated with hot stars
We use data on extreme radio scintillation to demonstrate that this
phenomenon is associated with hot stars in the solar neighbourhood. The ionized
gas responsible for the scattering is found at distances up to 1.75pc from the
host star, and on average must comprise 1.E5 distinct structures per star. We
detect azimuthal velocities of the plasma, relative to the host star, up to 9.7
km/s, consistent with warm gas expanding at the sound speed. The circumstellar
plasma structures that we infer are similar in several respects to the cometary
knots seen in the Helix, and in other planetary nebulae. There the ionized gas
appears as a skin around tiny molecular clumps. Our analysis suggests that
molecular clumps are ubiquitous circumstellar features, unrelated to the
evolutionary state of the star. The total mass in such clumps is comparable to
the stellar mass.Comment: 9 pages, 1 figure, to appear in Ap
Rapid mapping of visual receptive fields by filtered back-projection: application to multi-neuronal electrophysiology and imaging
Neurons in the visual system vary widely in the spatiotemporal properties of their receptive fields (RFs), and understanding these variations is key to elucidating how visual information is processed. We present a new approach for mapping RFs based on the filtered back projection (FBP), an algorithm used for tomographic reconstructions. To estimate RFs, a series of bars were flashed across the retina at pseudo‐random positions and at a minimum of five orientations. We apply this method to retinal neurons and show that it can accurately recover the spatial RF and impulse response of ganglion cells recorded on a multi‐electrode array. We also demonstrate its utility for in vivo imaging by mapping the RFs of an array of bipolar cell synapses expressing a genetically encoded Ca2+ indicator. We find that FBP offers several advantages over the commonly used spike‐triggered average (STA): (i) ON and OFF components of a RF can be separated; (ii) the impulse response can be reconstructed at sample rates of 125 Hz, rather than the refresh rate of a monitor; (iii) FBP reveals the response properties of neurons that are not evident using STA, including those that display orientation selectivity, or fire at low mean spike rates; and (iv) the FBP method is fast, allowing the RFs of all the bipolar cell synaptic terminals in a field of view to be reconstructed in under 4 min. Use of the FBP will benefit investigations of the visual system that employ electrophysiology or optical reporters to measure activity across populations of neurons
Short reachability networks
We investigate a generalisation of permutation networks. We say a sequence
of transpositions in forms a -reachability
network if for every choice of distinct points , there is a subsequence of whose composition maps to
for every . When , any permutation in can be
created and is a permutation network. Waksman [JACM, 1968] showed that the
shortest permutation networks have length about . In this paper, we
investigate the shortest -reachability networks. Our main result settles the
case of : the shortest -reachability network has length . For fixed , we give a simple randomised construction which
shows there exist -reachability networks using transpositions.
We also study the case where all transpositions are of the form ,
separating 2-reachability from the related probabilistic variant of
2-uniformity. Many interesting questions are left open.Comment: 13 pages, 1 figur
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