17,776 research outputs found

    The fossil record of evolution: Data on diversification and extinction

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    The two principle efforts include: (1) a compilation of a synoptic, mesoscale data base on times of origination and extinction of animal genera in the oceans over the last 600 million years of geologic time; and (2) an analysis of statistical patterns in these data that relate to the diversification of complex life and to the occurrence of mass extinctions, especially those that might be associated with extraterrestrial phenomena. The data base is unique in its taxonomic scope and detail and in its temporal resolution. It is a valuable resource for investigating evolutionary expansions and extinctions of complex life

    THREAD: A programming environment for interactive planning-level robotics applications

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    THREAD programming language, which was developed to meet the needs of researchers in developing robotics applications that perform such tasks as grasp, trajectory design, sensor data analysis, and interfacing with external subsystems in order to perform servo-level control of manipulators and real time sensing is discussed. The philosophy behind THREAD, the issues which entered into its design, and the features of the language are discussed from the viewpoint of researchers who want to develop algorithms in a simulation environment, and from those who want to implement physical robotics systems. The detailed functions of the many complex robotics algorithms and tools which are part of the language are not explained, but an overall impression of their capability is given

    State Labor Legislation Enacted in 2012

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    Laws concerning child labor, equal employment opportunity, human trafficking, immigration legislation, independent contractors, and prevailing wages were among the most active areas for state lawmakers in 2012

    The Independent Counsel Statute: An Idea Whose Time Has Passed

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    The Silent Epidemic: Perspectives of High School Dropouts

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    Presents findings from a survey that examines why some students do not complete their high school education, and what academic and personal supports would have helped them stay in school. Includes recommendations for improving graduation rates

    Snake eels (Ophichthidae) of the remote St. Peter and St. Paul’s Archipelago (Equatorial Atlantic) : Museum records after 37 years of shelf life

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    Despite of its major zoogeographical interest, the biological diversity of central Atlantic oceanic islands are still poorly known because of its remoteness. Incomplete species inventories are a hindrance to macroecology and conservation because knowledge on species distribution are important for identifying patterns and processes in biodiversity and for conservation planning. Records of the snake-eel family Ophichthidae for the St. Peter and St. Paul’s Archipelago, Brazil, are presented for the first time after revision of material collected and deposited in a museum collection 37 yrs ago. Specimens of Apterichtus kendalli and Herpetoichthys regius were collected using rotenone on sand bottoms and one Myrichthys sp. was observed and photographed swimming over a rocky reef. Remarkably, these species were not seen or collected in the St. Peter and St. Paul’s Archipelago ever since despite the substantial increase of biological expeditions over the past two decades, suggesting that the unjustified rotenone sampling prohibition in Brazil is hindering advancement of the nation’s biological diversity knowledge.info:eu-repo/semantics/publishedVersio

    Summary Jurisdiction in Bankruptcy: Katchen v. Landy and Questions Left Unanswered

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    This article deals with a complex and conceptually difficult phase of bankruptcy law. It is not written for the beginner, for it does not contain all the background material necessary to effectuate a full understanding of the area. But it is extremely objective, and it exhaustively treats the relevant appellate court decisions. For the informed reader, therefore, it is both thought-provoking and an invaluable research tool

    INFORMATION AS A DOUBLE-EDGE SWORD: IMPLICATIONS FOR FOOD STANDARDS AND LABELS

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    An analytical model is developed to examine product quality labeling. Prior to labeling all consumers are willing to pay a premium for the quality characteristic but product quality cannot be observed directly. If production costs are increasing, the total quantity produced may contain a mix of products - with and without the high-valued attribute. In the pooled equilibrium demand is influenced by perceptions of the product mix. After labels are introduced the market is separated into two sectors, conventional and high-valued. The economic implications of labels are examined by contrasting welfare in the separating equilibrium with welfare in the pooled equilibrium. Under the models' maintained assumptions the conventional sector loses welfare, while producers of the high-valued product experience gains. In addition, producers of the high-valued product may have incentives to promote costly labeling despite net-welfare losses.Marketing,
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