Book Review of The World Cafe: Shaping our Futures through Conversations that Matter,

Conversation is the process humans use to think and manage together. The active process of conversation is at the core of creative activity and collec- tive learning. It is the way human beings invent, change, and sustain our common experiences. The World Caje: Shaping Our Futures through Conversations that Mat- ter is an ode to significant conversations. Through an explanation of how and why to organize and execute meaningful exchanges, Brown and Isaacs present a process for collaborative problem solving and innovative thinking

A Bayesian method to estimate the depth and the range of phonating sperm whales using a single hydrophone

Some bioacousticians have used a single hydrophone to calculate the depth/range of phonating diving animals. The standard one-hydrophone localization method uses multipath transmissions (direct path, sea surface, and seafloor reflections) of the animal phonations as a substitute for a vertical hydrophone array. The standard method requires three multipath transmissions per phonation. Bioacousticians who study foraging sperm whales usually do not have the required amount of multipath transmissions. However, they usually detect accurately (using shallow hydrophones towed by research vessels) direct path transmissions and sea surface reflections of sperm whale phonations (clicks). Sperm whales emit a few thousand clicks per foraging dive, therefore researchers have this number of direct path transmissions and this number of sea surface reflections per dive. The author describes a Bayesian method to combine the information contained in those acoustic data plus visual observations. The author’s tests using synthetic data show that the accurate estimation of the depth/range of sperm whales is possible using a single hydrophone and without using any seafloor reflections. This method could be used to study the behavior of sperm whales using a single hydrophone in any location no matter what the depth, the relief, or the constitution of the seafloor might be

Status and First Results of the Acoustic Detection Test System AMADEUS

The AMADEUS system is integrated in the ANTARES neutrino telescope in the Mediterranean Sea and aims for the investigation of acoustic particle detection techniques in the deep sea. Installed at a depth of more than 2000m, the acoustic sensors of AMADEUS are using piezo-ceramic elements for the broad-band recording of acoustic signals with frequencies ranging up to 125kHz. AMADEUS consists of six clusters, each one comprising six acoustic sensors that are arranged at distances of roughly 1m from each other. Three acoustic clusters are installed along a vertical mechanical structure (a so-called Line) of ANTARES with spacings of about 15m and 110m, respectively. The remaining 3 clusters are installed with vertical spacings of 15m on a further Line of the ANTARES detector. The horizontal distance between the two lines is 240m. Each acoustic cluster allows for the suppression of random noise by requiring local coincidences and the reconstruction of the arrival direction of acoustic waves. Source positions can then be reconstructed using the precise time correlations between the clusters provided by the ANTARES clock system. AMADEUS thus allows for extensive acoustic background studies including signal correlations on several length scales as well as source localisation. The system is therefore excellently suited for feasibility studies for a potential future large scale acoustic neutrino telescope in sea water. Since the start of data taking on December 5th, 2007 a wealth of data has been recorded. The AMADEUS system will be described and some first results will be presented.Comment: Proceedings of the ARENA 2008 workshop (http://www.roma1.infn.it/arena2008/), June 2008. 8 pages, 10 figure

How Can Educators Use Multicultural Materials to Create a More Inclusive Classroom Community?

A common goal among educators is to create a classroom environment where students feel welcomed, seen, and heard. This Capstone Project provides a resource guide of multicultural materials that teachers can use in order to create a more inclusive learning environment. The resource guide includes literature, games, technology, and community resources. The project and review of literature helped to answer the research question: How can educators use multicultural materials to create a more inclusive classroom community? Research concludes that students are more engaged and more likely to be successful at school if they feel they are represented in their curriculum

Book Review of The World Cafe: Shaping our Futures through Conversations that Matter,

Conversation is the process humans use to think and manage together. The active process of conversation is at the core of creative activity and collec- tive learning. It is the way human beings invent, change, and sustain our common experiences. The World Caje: Shaping Our Futures through Conversations that Mat- ter is an ode to significant conversations. Through an explanation of how and why to organize and execute meaningful exchanges, Brown and Isaacs present a process for collaborative problem solving and innovative thinking

STATISTICAL COMPARISON OF MORTALITY, SPAT, AND BIOMASS OF SANCTUARY AND PSFA OYSTER BARS IN CHESAPEAKE BAY

The eastern oyster (Crassostrea virginica) is a keystone species in Chesapeake Bay, providing nutrient and sediment filtration and crucial habitat. While the eastern oyster was once abundant in Chesapeake Bay, over-harvesting, pollution, and disease have led to massive declines in their populations, with some estimates as less than one percent of historical levels. Dredge harvesting has flattened many of the three-dimensional reef structures, leading to a major decline in important habitat. To aid in oyster reef restoration, the State of Maryland implemented sanctuaries – areas where commercial harvest is entirely banned – and separated them from Public Shellfish Fishery Areas (PSFAs), where harvest is permitted. These sanctuaries have been politically controversial with watermen disputing the effectiveness of sanctuaries and lobbying to have them opened for harvest. This research utilized data gathered in annual dredge surveys conducted by the Maryland Department of Natural Resources to test the hypothesis that there were statistically significant differences in mortality, number of spat, and biomass in oyster bars in sanctuaries to bars in PSFAs from 2010 to 2019. Utilizing RStudio, it was found that there were only statistically significant differences in mortality across all bars and in a single geographical code, and in the number of spat per bushel across all bars and in low salinity bars. Most comparisons were not statistically significant, likely due in part to the high level of variability in the data and small sample sizes. Comparison of the means in every individual year from 2010 to 2019 showed broadly similar trends in sanctuary and PSFA bars while showing a greater mean biomass after 2013 for sanctuary bars compared to PSFA bars. Further research on the statistical differences in sanctuary and PSFA bars should focus on a narrower region with similar environmental factors

Patents-Adjudication of Validity in Infringement Cases Where Alternative Grounds for Dismissal Exist

Petitioner\u27s complaint alleging validity and infringement of his patent was dismissed by the trial court on the ground that petitioner had granted to respondent an implied license or shop right. On appeal, petitioner claimed, among other things, error in the refusal of the trial court to rule on the questions of validity and infringement of the patent. Respondent moved to strike these claims from petitioner\u27s statement of points on appeal. Held, motion denied. Failure of the trial court to pass on the questions of validity and infringement does not preclude the petitioner from arguing these issues on appeal. Kierulff v. Metropolitan Stevedore Co., 300 F.2d 614 (9th Cir. 1962)

The processes of sound scattering at the ocean surface and bottom

In order to have a firm basis for the prediction of reverberation or back-scattering of sound in the sea, field measurements leading to values for a back-scattering coefficient of the sea surface and bottom have been made. Variation of this coefficient with angle of incidence of the sound beam provides some interesting clues as to the back-scattering processes which operate...

Antitrust Law-Exclusive Dealing Arrangements-Employment by Courts of Dual Tests in Applying Section 3 of the Clayton Act

Petitioner nationally markets its product through exclusive dealing contracts with 80,700 independent distributors. In 1958 petitioner\u27s distributors accounted-as to vitamin concentrates-for 61.52 percent of all house-to- house sales 8.6 percent of the total retail sales, and 34.6 percent of the total sales, of similarly-composed products. The FTC examiner\u27s finding that petitioner had violated section 3 of the Clayton Act was sustained by the Commission. On appeal, held, affirmed, one judge dissenting in part. The control of 61.52, 34.6 or 8.6 percent of the market sales by a seller having exclusive dealing contracts with its buyers is sufficient proof that competition has been substantially lessened in the line of commerce affected . Mytinger & Casselberry, Inc. v. FTC, 301 F.2d 534 (D.C. Cir. 1962)

Research and calibration of Acoustic Sensors in ice within the SPATS (South Pole Acoustic Test Setup) project

We present development work aiming towards a large scale ice-based hybrid detector including acoustic sensors for the detection of neutrinos in the GZK range. A facility for characterization and calibration of acoustic sensors in clear (bubble-free) ice has been developed and the first measurements done at this facility are presented. Further, a resonant sensor intended primarily for characterization of the ambient noise in the ice at the South Pole has been developed and some data from its performance are given.Comment: 4 pages, 8 figures, ARENA 2010 conference proceeding