14,822 research outputs found

    A Gateway to Future Problems: Concerns about the State by-State Legalization of Medical Marijuana

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    [Excerpt] “Before 2009, every American presidential administration had been uniform in its policy of consistently enforcing the nation’s drug laws. Pursuant to federal law, possession, use, or cultivation of any drug deemed illegal by Congress was, universally, a prosecutable offense. Notwithstanding this unwavering policy, throughout the 1990s and early 2000s, the marijuana industry continued to grow, and several states legalized medicinal marijuana despite the standing federal prohibition. Moreover, President Barrack Obama, shortly after taking office, broke precedent with his predecessors when he put forth a policy of non-enforcement through a publicly released memorandum authored by the then Deputy Attorney General, David Ogden, (hereinafter Ogden Memo or Memo) “provid[ing] clarification and guidance to federal prosecutors in states that have enacted laws authorizing the medical use of marijuana.” In this Memo, Ogden discouraged expenditure of “limited investigative and prosecutorial resources” on “individuals whose actions are in clear and unambiguous compliance with existing state laws providing for the medical use of marijuana.” Following the release of this Memo, many more states have enacted legislation that would legalize medical marijuana, and accordingly, during the Obama administration, the medical marijuana industry has demonstrated incredible growth. Furthermore, it is projected to continue to grow exponentially over the next five years.

    Automatically Annotating the MIR Flickr Dataset: Experimental Protocols, Openly Available Data and Semantic Spaces

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    The availability of a large, freely redistributable set of high-quality annotated images is critical to allowing researchers in the area of automatic annotation, generic object recognition and concept detection to compare results. The recent introduction of the MIR Flickr dataset allows researchers such access. A dataset by itself is not enough, and a set of repeatable guidelines for performing evaluations that are comparable is required. In many cases it also is useful to compare the machine-learning components of different automatic annotation techniques using a common set of image features. This paper seeks to provide a solid, repeatable methodology and protocol for performing evaluations of automatic annotation software using the MIR Flickr dataset together with freely available tools for measuring performance in a controlled manner. This protocol is demonstrated through a set of experiments using a “semantic space” auto-annotator previously developed by the authors, in combination with a set of visual term features for the images that has been made publicly available for download. The paper also discusses how much training data is required to train the semantic space annotator with the MIR Flickr dataset. It is the hope of the authors that researchers will adopt this methodology and produce results from their own annotators that can be directly compared to those presented in this work

    Rotator cuff tears: is non-surgical management effective?

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    This is an Accepted Manuscript of an article published by Taylor & Francis in Physical therapy Reviews on 28 December 2016, available online at: https://doi.org/10.1080/10833196.2016.1271504.Background: Rotator cuff-related shoulder pain is a common musculoskeletal complaint with an increasing number of people with shoulder pain undergoing surgical repair each year. The relationship between rotator cuff tendon tears and shoulder pain remains equivocal due to the high prevalence of tears in people without symptoms, which suggests that a proportion of people will undergo surgery on tissues not related to their symptoms. As a result there have been suggestions to initially manage atraumatic tears non-surgically. Objectives: The objective of this narrative review was to present current evidence regarding the assessment and management of full-thickness rotator cuff tears. Major findings: To date, three randomised controlled trials have compared surgical with non-surgical management of rotator cuff tears. Outcomes show a small but non-significant effect in favour of surgery. Only one study has looked at long-term outcomes of greater than one year. Overall 129 subjects have completed a course of non-surgical management and therefore low participant numbers may not be sufficient to draw firm conclusions. Conclusions: Current evidence currently supports the consideration of a non-surgical approach in the management of people with shoulder symptoms and identified rotator cuff tears, for a period of time.Peer reviewedFinal Accepted Versio

    Semantic Retrieval and Automatic Annotation: Linear Transformations, Correlation and Semantic Spaces

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    This paper proposes a new technique for auto-annotation and semantic retrieval based upon the idea of linearly mapping an image feature space to a keyword space. The new technique is compared to several related techniques, and a number of salient points about each of the techniques are discussed and contrasted. The paper also discusses how these techniques might actually scale to a real-world retrieval problem, and demonstrates this though a case study of a semantic retrieval technique being used on a real-world data-set (with a mix of annotated and unannotated images) from a picture library

    Congruences in ordered pairs of partitions

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    Dyson defined the rank of a partition (as the first part minus the number of parts) whilst investigating certain congruences in the sequence p−1(n). The rank has been widely studied as have been other statistics, such as the crank. In this paper a “birank” is defined which relates to ordered pairs of partitions, and is used in an elementary proof of a congruence in p−2(n
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