The Flood Last Time: ‘Muck’ and the uses of history in Kara Walker’s ‘Rumination’ on Katrina

Kara Walker describes her book After the Deluge (2007) as “rumination” on Hurricane Katrina structured in the form of a “visual essay.” The book combines Walker's own artwork and the works of other artists into “a narrative of fluid symbols” in which the overarching analogy of “murky, toxic waters” holds the potential to “become the amniotic fluid of a potentially new and difficult birth.” This essay considers Walker's use of history within this collection of images to show how the book opens up ways to interrogate Katrina's particular significance as a wholly new, and yet eerily familiar, historical “event.” Nuancing a reading of Walker's book with reference to James Baldwin's The Fire Next Time (1963), to which After the Deluge implicitly alludes, the essay examines Walker's artistic challenge to the notion that history is a narratable account of a past that precedes the present and demonstrates how that challenge encourages us to think about the potential uses of history within civil rights discourse after Katrina

Retail Dairy Prices Fluctuate with the Farm Value of Milk

Farm milk prices in the United States fluctuated throughout the 2000-2009 decade. Dairy farmers, industry pundits, and policymakers all reacted with much alarm. One point of concern has been the response of retail prices to farm price volatility. This study investigates farm-to-retail price transmission for two major dairy products – whole milk and Cheddar cheese – in the 2000s. Results show that price shocks at the farm gate were transmitted asymmetrically to retail. However, in order to best identify the nature of the transmission process, it is important to fit alternative model specifications.dairy prices, error correction models, price transmission, Demand and Price Analysis,

Retail Dairy Prices Fluctuate with the Farm Value of Milk

Farm milk prices tend to be volatile. Dairy farmers, industry pundits, and policymakers further tend to react to price volatility with alarm. One point of concern is the response of retail prices. This study investigates farm-to-retail price transmission in the 2000s for whole milk and cheddar cheese. Results show that price shocks at the farm gate are transmitted with delay and asymmetry to retail. Differences in the nature of price transmission for whole milk and cheddar cheese prices are also identified.asymmetric price transmission, cointegration, dairy prices, error correction models, Demand and Price Analysis, Livestock Production/Industries,

Compression and R-wave detection of ECG/VCG data

Application of information theory to eliminate redundant part of electrocardiogram or vectorcardiogram is described. Operation of medical equipment to obtain three dimensional study of patient is discussed. Use of fast Fourier transform to accomplish data compression is explained

Research on the properties of circadian systems amenable to study in space

Three areas of inquiry are reported for the Skylab Experiment S-071 whose objective was to study the circadian system of a mammal during space flight. The thermoregulatory behavior of the Perognathus longimembris, or little pocket mouse, was studied under conditions of constant dark and constant temperature in the prolonged weightless environment of Skylab. The following specific questions were studied: (1) the effects of weightlessness on circadian periodicity in the little pocket mouse; (2) stability of the free-running circadian period of body temperature of the little pocket mouse exposed to simulated launch stress; and (3) characteristics of the circadian rhythm of body temperature in the little pocket mouse. Diagrams of the electronic circuitry and hardware used in the experiment are shown and results are given in both graphical and tabular form. The methods used in the experiment are fully documented, along with conclusions and recommendations for future research

Random quantum channels I: graphical calculus and the Bell state phenomenon

This paper is the first of a series where we study quantum channels from the random matrix point of view. We develop a graphical tool that allows us to compute the expected moments of the output of a random quantum channel. As an application, we study variations of random matrix models introduced by Hayden \cite{hayden}, and show that their eigenvalues converge almost surely. In particular we obtain for some models sharp improvements on the value of the largest eigenvalue, and this is shown in a further work to have new applications to minimal output entropy inequalities.Comment: Several typos were correcte

Supporting siblings of children with a special educational need or disability : an evaluation of Sibs Talk, a one‐to‐one intervention delivered by staff in mainstream schools

A group often overlooked for specific supports in schools are siblings of children with a disability, special educational needs or a serious long‐term condition (SEND). In this article we review the current sibling research and identify a lack of literature on interventions, particularly within a school context. We then present a description of Sibs Talk, an example of a new school‐based intervention to support siblings. Sibs Talk is a ten‐session, one‐to‐one intervention approach for schools to complete with Key Stage 2 children who have a brother or sister with SEND. Finally, we present an initial evaluation of the effectiveness of Sibs Talk, using a pre and post evaluation format with a sample of 55 children from 11 schools. The data presented in this evaluation indicate that Sibs Talk may have contributed to positive outcomes for participating children

Study of high voltage solar array configurations with integrated power control electronics

Solar array electrical configurations for voltage regulatio

Features in the ion emission of Cu, Al, and C plasmas produced by ultrafast laser ablation

© 2015 AIP Publishing LLC. The bi-modal nature of charge integrated ion kinetic energy distributions, which result from ultrafast laser produced plasmas, is discussed in this paper. A negatively biased Faraday cup was used as a charge collector to measure ion distributions from three different solid targets that had been irradiated with an ultrafast laser in the fluence range 0.1-1 J/cm2. A bi-modal time of flight distribution is found for all three targets (C, Al, and Cu). In the case of the metallic targets (Al and Cu), high- and low-kinetic energy peaks exhibit quite different dependencies on laser fluence, whereas for the semi-metallic target (C), both peaks scale similarly with ultrafast laser fluence. The results are discussed within the framework of a one dimensional capacitor model resulting in ion acceleration