Sample records for emergency search techniques

  1. Emerging sensing techniques for emerging memories

    Microsoft Academic Search

    Yiran Chen; Hai Li

    2011-01-01

    Among all emerging memories, Spin-Transfer Torque Random Access Memory (STT-RAM) has shown many promising features such as fast access speed, nonvolatility, compatibility to CMOS process and excellent scalability. However, large process variations of both magnetic tunneling junction (MTJ) and MOS transistor severely limit the yield of STT-RAM chips. In this work, we present a recently proposed sensing technique called nondestructive

  2. Emergency local searching approach for job shop scheduling

    NASA Astrophysics Data System (ADS)

    Zhao, Ning; Chen, Siyu; Du, Yanhua

    2013-09-01

    Existing methods of local search mostly focus on how to reach optimal solution. However, in some emergency situations, search time is the hard constraint for job shop scheduling problem while optimal solution is not necessary. In this situation, the existing method of local search is not fast enough. This paper presents an emergency local search(ELS) approach which can reach feasible and nearly optimal solution in limited search time. The ELS approach is desirable for the aforementioned emergency situations where search time is limited and a nearly optimal solution is sufficient, which consists of three phases. Firstly, in order to reach a feasible and nearly optimal solution, infeasible solutions are repaired and a repair technique named group repair is proposed. Secondly, in order to save time, the amount of local search moves need to be reduced and this is achieved by a quickly search method named critical path search(CPS). Finally, CPS sometimes stops at a solution far from the optimal one. In order to jump out the search dilemma of CPS, a jump technique based on critical part is used to improve CPS. Furthermore, the schedule system based on ELS has been developed and experiments based on this system completed on the computer of Intel Pentium(R) 2.93 GHz. The experimental result shows that the optimal solutions of small scale instances are reached in 2 s, and the nearly optimal solutions of large scale instances are reached in 4 s. The proposed ELS approach can stably reach nearly optimal solutions with manageable search time, and can be applied on some emergency situations.

  3. LOCAL SEARCH TECHNIQUES FOR EDUCATIONAL TIMETABLING PROBLEMS

    Microsoft Academic Search

    Andrea Schaerf; Luca Di Gaspero

    Local Search is an emerging paradigm for combinatorial search, which has been recently shown to be very effective for a large number of combinatorial problems. Educational timetabling problemsconsist in scheduling a sequence of lectures or examinations be- tween teachers and students in a prefixed period of time (typically a week), satisfying a set of constraints of various types. Problems in

  4. Revisiting IR Techniques for Collaborative Search Strategies

    Microsoft Academic Search

    Hideo Joho; David Hannah; Joemon M. Jose

    2009-01-01

    This paper revisits some of the established Information Re- trieval (IR) techniques to investigate eective collaborative search strate- gies. We devised eight search strategies that divided labour and shared knowledge in teams using relevance feedback and clustering. We evalu- ated the performance of strategies with a user simulation enhanced by a query-pooling method. Our results show that relevance feedback is

  5. Air traffic control using genetic search techniques

    Microsoft Academic Search

    V. H. L. Cheng; L. S. Crawford; P. K. Menon

    1999-01-01

    Genetic search techniques constitute an optimization methodology effective for solving discontinuous, non-convex, nonlinear, or non-analytic problems. This paper explores the application of such techniques to a non-analytic event-related air traffic control problem, that of runway assignment, sequencing and scheduling of arrival flights at an airport with multiple runways. Several genetic search formulations are developed and evaluated with a representative arrival

  6. Search techniques, Fibonacci lengths and centropolyhedral groups

    E-print Network

    St Andrews, University of

    Search techniques, Fibonacci lengths and centro­polyhedral groups C. M. Campbell and P. P. Campbell the Fibonacci orbit of G with respect to the generating set A, denoted FA (G). If FA (G) is periodic, we call the length of the period of the sequence the Fibonacci length of G with respect to A, written LENA (G). We

  7. HYPER-HEURISTICS: AN EMERGING DIRECTION IN MODERN SEARCH TECHNOLOGY

    Microsoft Academic Search

    Edmund Burke; Emma Hart; G raham Kendall; Peter Ross; Sonia Schulenburg

    2003-01-01

    This chapter introduces and overviews an emerging methodology in search and optimisation. One of the key aims of these new approaches, which have been termed hyper-heuristics, is to raise the level of generality at which optimisation systems can operate. An objective is that hyper-heuristics will lead to more general systems that are able to handle a wide range of problem

  8. The use of nuclear medicine techniques in the emergency department

    PubMed Central

    McGlone, B; Balan, K

    2001-01-01

    Nuclear medicine techniques have received little attention in the practice of emergency medicine, yet radionuclide imaging can provide valuable and unique information in the management of acutely ill patients. In this review, emphasis is placed on the role of these techniques in patients with bone injuries, non-traumatic bone pain and in those with pleuritic chest pain. New developments such as single photon emission computed tomography (SPECT) in myocardial infarction are outlined and older techniques such as scrotal scintigraphy are reviewed. Radionuclide techniques are discussed in a clinical context and in relation to alternative imaging modalities or strategies that may be available to the emergency medicine physician. Aspects of a 24 hour nuclear medicine service are considered. PMID:11696487

  9. Search techniques for near-earth asteroids

    NASA Technical Reports Server (NTRS)

    Helin, E. F.; Dunbar, R. S.

    1990-01-01

    Knowledge of the near-earth asteroids (Apollo, Amor, and Aten groups) has increased enormously over the last 10 to 15 years. This has been due in large part to the success of programs that have systematically searched for these objects. These programs have been motivated by the apparent relationships of the near-earth asteroids to terrestrial impact cratering, meteorites, and comets, and their relative accessibility for asteroid missions. Discovery of new near-earth asteroids is fundamental to all other studies, from theoretical modeling of their populations to the determination of their physical characteristics by various remote-sensing techniques. The methods that have been used to find these objects are reviewed, and ways in which the search for near-earth asteroids can be expanded are discussed.

  10. Information spread of emergency events: path searching on social networks.

    PubMed

    Dai, Weihui; Hu, Hongzhi; Wu, Tunan; Dai, Yonghui

    2014-01-01

    Emergency has attracted global attentions of government and the public, and it will easily trigger a series of serious social problems if it is not supervised effectively in the dissemination process. In the Internet world, people communicate with each other and form various virtual communities based on social networks, which lead to a complex and fast information spread pattern of emergency events. This paper collects Internet data based on data acquisition and topic detection technology, analyzes the process of information spread on social networks, describes the diffusions and impacts of that information from the perspective of random graph, and finally seeks the key paths through an improved IBF algorithm. Application cases have shown that this algorithm can search the shortest spread paths efficiently, which may help us to guide and control the information dissemination of emergency events on early warning. PMID:24600323

  11. Search Techniques Published on: 11/3/2010 Page 1

    E-print Network

    Rollins, Andrew M.

    the techniques that can be used to search and browse for jobs in the Case Western Reserve University Careers system. Procedure Use these directions to search for jobs in the Case Western Reserve University Careers search for jobs. A list of recent job openings appears in the Latest Job Postings box at the center

  12. Machine learning techniques for business blog search and mining

    Microsoft Academic Search

    Yun Chen; Flora S. Tsai; Kap Luk Chan

    2008-01-01

    Weblogs, or blogs, have rapidly gained in popularity over the past few years. In particular, the growth of business blogs that are written by or provide commentary on businesses and companies opens up new opportunities for developing blog-specific search and mining techniques. In this paper, we propose probabilistic models for blog search and mining using two machine learning techniques, latent

  13. Emerging techniques and molecular imaging in breast cancer.

    PubMed

    Yang, Wei Tse

    2011-08-01

    The sensitivity of screening mammography is limited in the evaluation of dense breasts, with as few as 45% of cancers visible in extremely dense breasts. Supplementary imaging for improved sensitivity in women with dense breasts is necessary to overcome this limitation. Emerging technologies that advance the applications of digital mammography include digital breast tomosynthesis and dedicated breast cone-beam computed tomography. Molecular imaging goes beyond structural imaging. A functional imaging technique that provides information on the biology, physiology, and metabolic pathways of cancer might help to improve the sensitivity and specificity of breast cancer diagnosis, facilitate early assessment of treatment response, and help individualize therapy options for patients. Advanced magnetic resonance, nuclear medicine, and optical imaging techniques in the realm of molecular imaging will be explored in this article. PMID:21782119

  14. Enhanced Visual Search in Infancy Predicts Emerging Autism Symptoms

    PubMed Central

    Gliga, Teodora; Bedford, Rachael; Charman, Tony; Johnson, Mark H.; Baron-Cohen, Simon; Bolton, Patrick; Cheung, Celeste; Davies, Kim; Liew, Michelle; Fernandes, Janice; Gammer, Issy; Maris, Helen; Salomone, Erica; Pasco, Greg; Pickles, Andrew; Ribeiro, Helena; Tucker, Leslie

    2015-01-01

    Summary In addition to core symptoms, i.e., social interaction and communication difficulties and restricted and repetitive behaviors, autism is also characterized by aspects of superior perception [1]. One well-replicated finding is that of superior performance in visual search tasks, in which participants have to indicate the presence of an odd-one-out element among a number of foils [2–5]. Whether these aspects of superior perception contribute to the emergence of core autism symptoms remains debated [4, 6]. Perceptual and social interaction atypicalities could reflect co-expressed but biologically independent pathologies, as suggested by a “fractionable” phenotype model of autism [7]. A developmental test of this hypothesis is now made possible by longitudinal cohorts of infants at high risk, such as of younger siblings of children with autism spectrum disorder (ASD). Around 20% of younger siblings are diagnosed with autism themselves [8], and up to another 30% manifest elevated levels of autism symptoms [9]. We used eye tracking to measure spontaneous orienting to letter targets (O, S, V, and +) presented among distractors (the letter X; Figure 1). At 9 and 15 months, emerging autism symptoms were assessed using the Autism Observation Scale for Infants (AOSI; [10]), and at 2 years of age, they were assessed using the Autism Diagnostic Observation Schedule (ADOS; [11]). Enhanced visual search performance at 9 months predicted a higher level of autism symptoms at 15 months and at 2 years. Infant perceptual atypicalities are thus intrinsically linked to the emerging autism phenotype. PMID:26073135

  15. Bomb Threats and Bomb Search Techniques.

    ERIC Educational Resources Information Center

    Department of the Treasury, Washington, DC.

    This pamphlet explains how to be prepared and plan for bomb threats and describes procedures to follow once a call has been received. The content covers (1) preparation for bomb threats, (2) evacuation procedures, (3) room search methods, (4) procedures to follow once a bomb has been located, and (5) typical problems that search teams will…

  16. Shallow NLP techniques for internet search

    Microsoft Academic Search

    Alex Penev; Raymond K. Wong

    2006-01-01

    Information Retrieval (IR) is a major component in many of our daily activities, with perhaps its most prominent role manifested in search engines. Today's most advanced engines use the keyword-based (\\

  17. Neighboring cell search techniques for LTE systems

    E-print Network

    Shen, Yuan

    Long term evolution (LTE) is envisioned to be a key technology for the 4G wireless communication. In LTE systems, each user (UE) detects the surrounding base stations by searching the primary and secondary synchronization ...

  18. Automatic search of geospatial features for disaster and emergency management

    NASA Astrophysics Data System (ADS)

    Zhang, Chuanrong; Zhao, Tian; Li, Weidong

    2010-12-01

    Although the fast development of OGC (Open Geospatial Consortium) WFS (Web Feature Service) technologies has undoubtedly improved the sharing and synchronization of feature-level geospatial information across diverse resources, literature shows that there are still apparent limitations in the current implementation of OGC WFSs. Currently, the implementation of OGC WFSs only emphasizes syntactic data interoperability via standard interfaces and cannot resolve semantic heterogeneity problems in geospatial data sharing. To help emergency responders and disaster managers find new ways of efficiently searching for needed geospatial information at the feature level, this paper aims to propose a framework for automatic search of geospatial features using Geospatial Semantic Web technologies and natural language interfaces. We focus on two major tasks: (1) intelligent geospatial feature retrieval using Geospatial Semantic Web technologies; (2) a natural language interface to a geospatial knowledge base and web feature services over the Semantic Web. Based on the proposed framework we implemented a prototype. Results show that it is practical to directly discover desirable geospatial features from multiple semantically heterogeneous sources using Geospatial Semantic Web technologies and natural language interfaces.

  19. Search for emergent superlattice dispersion in a topological insulator heterostructure

    NASA Astrophysics Data System (ADS)

    Belopolski, Ilya; Koirala, Nikesh; Xu, Suyang; Neupane, Madhab; Bian, Guang; Alidoust, Nasser; Oh, Seongshik; Hasan, Zahid

    2015-03-01

    Crystals are typically offered to us by nature and we must search among them to find ones with useful properties. Here, we consider a more aggressive approach to materials engineering where we build a nanometer-scale periodic array of different crystal lattices. Such a lattice of lattices may allow us to directly engineer desired electronic properties in an emergent superlattice band structure. To our knowledge, no such superlattice dispersion has yet been observed. However, the discovery of topological insulators offers a natural route to engineering a superlattice band structure. Moreover, a topological insulator superlattice has immediate relevance as a way to engineer a Weyl semimetal. Other superlattices which give rise to other unusual phases may also exist. Here, we use photoemission spectroscopy to study a one-dimensional superlattice of alternating layers of a topological insulator, Bi2Se3, and a conventional insulator, InxBi2-xSe3. This system has a phase transition to a topological phase, which we search for by changing the thickness of the topological and trivial layers, as well as the In doping x in the trivial layer. Despite evidence in favor of a superlattice dispersion, we cannot yet conclude that we have achieved a superlattice band structure. The work at Princeton and Princeton-led synchrotron-based ARPES measurements is supported by U.S. DOE DE-FG-02-05ER46200.

  20. Building Domain-Specific Search Engines with Machine Learning Techniques

    Microsoft Academic Search

    Andrew McCallum; Kamal Nigam; Jason Rennie; Kristie Seymore

    1999-01-01

    Domain-specific search engines are growing in popu- larity because they offer increased accuracy and extra functionality not possible with the general, Web-wide search engines. For example, www.campsearch.com allows complex queries by age-group, size, location and cost over .summer camps. Unfortunately these domain-specific search engines are difficult and time- consuming to maintain. This paper proposes the use of machine learning techniques

  1. TDMA Time Slot and Turn Optimization with Evolutionary Search Techniques

    E-print Network

    Paris-Sud XI, Université de

    TDMA Time Slot and Turn Optimization with Evolutionary Search Techniques Arne Hamann, Rolf Ernst-coded variation operators tailored for time slot and turn optimization on TDMA-scheduled resources slot assignment, challenge the search- power of string-coded binary evolutionary algorithms

  2. Refined Search Tree Technique for DOMINATING SET on Planar Graphs

    Microsoft Academic Search

    Jochen Alber; Hongbing Fan; Michael R. Fellows; Henning Fernau; Rolf Niedermeier; Frances A. Rosamond; Ulrike Stege

    2001-01-01

    We establish refined search tree techniques for the parameterized Dominating Set problem on planar graphs. We derive a fixed parameter algorithm with running time O(8 k n), where k is the size of the dominating set and n is the number of vertices in the graph. For our search tree, we firstly provide a set of reduction rules. Secondly, we

  3. Search for an Emergency Contraception Provider in the United States

    MedlinePLUS

    ... an Emergency Contraception (Plan B) Provider in the United States Looking for Emergency Contraception NOW? In the U.S., ... pharmacists in some states) near you in the United States who will write prescriptions for emergency contraception or ...

  4. Ultrasound in sports medicine: relevance of emerging techniques to clinical care of athletes.

    PubMed

    Yim, Eugene Sun; Corrado, Gianmichael

    2012-08-01

    The applications of ultrasound in managing the clinical care of athletes have been expanding over the past decade. This review provides an analysis of the research that has been published regarding the use of ultrasound in athletes and focuses on how these emerging techniques can impact the clinical management of athletes by sports medicine physicians. Electronic database literature searches were performed using the subject terms 'ultrasound' and 'athletes' from the years 2003 to 2012. The following databases were searched: PubMed, Web of Science, Cochrane Library, CINAHL, and SPORTDiscus™. The search produced 617 articles in total, with a predominance of articles focused on cardiac and musculoskeletal ultrasound. 266 of the studies involved application of ultrasound in evaluating the cardiovascular properties of athletes, and 151 studies involved musculoskeletal ultrasound. Other applications of ultrasound included abdominal, vascular, bone density and volume status. New techniques in echocardiography have made significant contributions to the understanding of the physiological changes that occur in the athlete's heart in response to the haemodynamic stress associated with different types of activity. The likely application of these techniques will be in managing athletes with hypertrophic cardiomyopathy, and the techniques are near ready for application into clinical practice. These techniques are highly specialized, however, and will require referral to dedicated laboratories to influence the clinical management of athletes. Investigation of aortic root pathology and pulmonary vascular haemodynamics are also emerging, but will require additional studies with larger numbers and outcomes analysis to validate their clinical utility. Some of these techniques are relatively simple, and thus hold the potential to enter clinical management in a point-of-care fashion. Musculoskeletal ultrasound has demonstrated a number of diagnostic and therapeutic techniques applicable to pathology of the shoulder, elbow, wrist, hand, hip, knee and ankle. These techniques have been applied mainly to the management of impingement syndromes, tendinopathies and arthritis. Many of these techniques have been validated and have entered clinical practice, while more recently developed techniques (such as dynamic ultrasound and platelet-rich plasma injections) will require further research to verify efficacy. Research in musculoskeletal ultrasound has also been helpful in identifying risk factors for injury and, thus, serving as a focus for developing interventions. Research in abdominal ultrasound has investigated the potential role of ultrasound imaging in assessing splenomegaly in athletes with mononucleosis, in an attempt to inform decisions and policies regarding return to play. Future research will have to demonstrate a reduction in adverse events in order to justify the application of such a technique into policy. The role of ultrasound in assessing groin pain and abdominal pain in ultraendurance athletes has also been investigated, providing promising areas of focus for the development of treatment interventions and physical therapy. Finally, preliminary research has also identified the role of ultrasound in addressing vascular disease, bone density and volume status in athletes. The potential applications of ultrasound in athletes are broad, and continuing research, including larger outcome studies, will be required to establish the clinical utility of these techniques in the care of athletes. PMID:22712843

  5. Demeter, persephone, and the search for emergence in agent-based models.

    SciTech Connect

    North, M. J.; Howe, T. R.; Collier, N. T.; Vos, J. R.; Decision and Information Sciences; Univ. of Chicago; PantaRei Corp.; Univ. of Illinois

    2006-01-01

    In Greek mythology, the earth goddess Demeter was unable to find her daughter Persephone after Persephone was abducted by Hades, the god of the underworld. Demeter is said to have embarked on a long and frustrating, but ultimately successful, search to find her daughter. Unfortunately, long and frustrating searches are not confined to Greek mythology. In modern times, agent-based modelers often face similar troubles when searching for agents that are to be to be connected to one another and when seeking appropriate target agents while defining agent behaviors. The result is a 'search for emergence' in that many emergent or potentially emergent behaviors in agent-based models of complex adaptive systems either implicitly or explicitly require search functions. This paper considers a new nested querying approach to simplifying such agent-based modeling and multi-agent simulation search problems.

  6. High Altitude Platforms for Disaster Recovery: Capabilities, Strategies, and Techniques for Providing Emergency Telecommunications

    SciTech Connect

    Juan D. Deaton

    2008-05-01

    Natural disasters and terrorist acts have significant potential to disrupt emergency communication systems. These emergency communication networks include first-responder, cellular, landline, and emergency answering services such as 911, 112, or 999. Without these essential emergency communications capabilities, search, rescue, and recovery operations during a catastrophic event will be severely debilitated. High altitude platforms could be fitted with telecommunications equipment and used to support these critical communications missions once the catastrophic event occurs. With the ability to be continuously on station, HAPs provide excellent options for providing emergency coverage over high-risk areas before catastrophic incidents occur. HAPs could also provide enhanced 911 capabilities using either GPS or reference stations. This paper proposes potential emergency communications architecture and presents a method for estimating emergency communications systems traffic patterns for a catastrophic event.

  7. Localization Versus Abstraction: A Comparison of Two Search Reduction Techniques

    NASA Technical Reports Server (NTRS)

    Lansky, Amy L.

    1992-01-01

    There has been much recent work on the use of abstraction to improve planning behavior and cost. Another technique for dealing with the inherently explosive cost of planning is localization. This paper compares the relative strengths of localization and abstraction in reducing planning search cost. In particular, localization is shown to subsume abstraction. Localization techniques can model the various methods of abstraction that have been used, but also provide a much more flexible framework, with a broader range of benefits.

  8. Very Large-Scale Neighborhood Search Techniques in Timetabling Problems

    Microsoft Academic Search

    Carol Meyers; James B. Orlin

    2006-01-01

    We describe the use of very large-scale neighborhood search (VLSN) techniques in examination timetabling problems. We detail three applications of VLSN algorithms that illustrate the versatility and po- tential of such algorithms in timetabling. The first of these uses cyclic exchange neighborhoods, in which an ordered subset of exams in dis- joint time slots are swapped cyclically such that each

  9. Towards Optimal Circuit Layout Using Advanced Search Techniques

    E-print Network

    Areibi, Shawki M

    Towards Optimal Circuit Layout Using Advanced Search Techniques by Shawki Areibi A thesis presented be computationally fast but also generate layouts close to optimal. The work in this thesis involves exploring algorithmic solutions to the problem of circuit layout in VLSI design. The exploration is an attempt

  10. Intelligent Searching Methods for Open Source Information in Emergency Logistics' Decision System

    Microsoft Academic Search

    Han Song

    2010-01-01

    There was a lot of happen chance in society, to say nothing of the hazard and suddenness universally that existed in the folk's living. We should work over the information searching methods for emergency logistics and lucubrate into the rules in decision system. If the open sources for emergency logistics could be adequately utilized and the soft control power of

  11. The Emergence of Pattern Discovery Techniques in Computational Biology

    Microsoft Academic Search

    Isidore Rigoutsos; Aris Floratos; Laxmi Parida; Yuan Gao; Daniel Platt

    2000-01-01

    In the past few years, pattern discovery has been emerging as a generic tool of choice for tackling problems from the computational biology domain. In this presentation, and after defining the problem in its generality, we review some of the algorithms that have appeared in the literature and describe several applications of pattern discovery to problems from computational biology.

  12. that other techniques will emerge which may bypass the need for such irradiation. Two side

    E-print Network

    Asimow, Paul D.

    - 19 - that other techniques will emerge which may bypass the need for such irradiation. Two side will resurface, stimulated by the advances in technology and techniques briefly addressed above. In particular approaches will result from advances in the geological techniques and the ever more frequent and unique

  13. Surface space : digital manufacturing techniques and emergent building material

    E-print Network

    Ho, Joseph Chi-Chen, 1975-

    2002-01-01

    This thesis explores tectonic possibilities of new material and forming techniques. The design process is catalyzed by experimenting different configurations of the material.This project attempts to develop inventive ways ...

  14. Search techniques, Fibonacci lengths and centro-polyhedral groups

    E-print Network

    St Andrews, University of

    Search techniques, Fibonacci lengths and centro-polyhedral groups C. M. Campbell and P. P. Campbell} the sequence xi = ai+1, 0 i n - 1, xi+n = n j=1 xi+j-1, i 0, is called the Fibonacci orbit of G with respect the Fibonacci length of G with respect to A, written LENA(G). We examine the Fibonacci lengths of all generating

  15. Emerging role of radiolabeled nanoparticles as an effective diagnostic technique

    PubMed Central

    2012-01-01

    Nanomedicine is emerging as a promising approach for diagnostic applications. Nanoparticles are structures in the nanometer size range, which can present different shapes, compositions, charges, surface modifications, in vitro and in vivo stabilities, and in vivo performances. Nanoparticles can be made of materials of diverse chemical nature, the most common being metals, metal oxides, silicates, polymers, carbon, lipids, and biomolecules. Nanoparticles exist in various morphologies, such as spheres, cylinders, platelets, and tubes. Radiolabeled nanoparticles represent a new class of agent with great potential for clinical applications. This is partly due to their long blood circulation time and plasma stability. In addition, because of the high sensitivity of imaging with radiolabeled compounds, their use has promise of achieving accurate and early diagnosis. This review article focuses on the application of radiolabeled nanoparticles in detecting diseases such as cancer and cardiovascular diseases and also presents an overview about the formulation, stability, and biological properties of the nanoparticles used for diagnostic purposes. PMID:22809406

  16. Emerging Techniques in Minimally Invasive Surgery. Pros and Cons.

    PubMed

    Fisichella, P Marco; DeMeester, Steven R; Hungness, Eric; Perretta, Silvana; Soper, Nathaniel J; Rosemurgy, Alexander; Torquati, Alfonso; Sachdeva, Ajit K; Patti, Marco G

    2015-07-01

    New trends have emerged regarding the best minimally invasive access approaches to perform gastrointestinal surgery. However, these newer approaches are seen critically by those who demand a more strict assessment of outcomes and safety. An international panel of expert gathered at the 2014 American College of Surgeons Meeting with the goal of providing an evidence-based understanding of the real value of these approaches in gastrointestinal surgery. The panel has compared the efficacy and safety of most established approaches to gastrointestinal diseases to those of new treatment modalities: peroral esophageal myotomy vs. laparoscopic myotomy for achalasia, transgastric vs. transvaginal approach, and single-incision vs. multi-port access minimally invasive surgery. The panel found that (1) the outcome of these new approaches was not superior to that of established surgical procedures; (2) the new approaches are generally performed in few highly specialized centers; and (3) transgastric and transvaginal approaches might be safe and feasible in very experienced hands, but cost, training, operative time, and tools seem to limit their application for the treatment of common procedures such as cholecystectomy and appendectomy. Because the expected advantages of new approaches have yet to be proven in controlled trials, new approaches should be considered for adoption into practice only after thorough analyses of their efficacy and effectiveness and appropriate training. PMID:25678255

  17. Molecular imaging of rheumatoid arthritis: emerging markers, tools, and techniques

    PubMed Central

    2014-01-01

    Early diagnosis and effective monitoring of rheumatoid arthritis (RA) are important for a positive outcome. Instant treatment often results in faster reduction of inflammation and, as a consequence, less structural damage. Anatomical imaging techniques have been in use for a long time, facilitating diagnosis and monitoring of RA. However, mere imaging of anatomical structures provides little information on the processes preceding changes in synovial tissue, cartilage, and bone. Molecular imaging might facilitate more effective diagnosis and monitoring in addition to providing new information on the disease pathogenesis. A limiting factor in the development of new molecular imaging techniques is the availability of suitable probes. Here, we review which cells and molecules can be targeted in the RA joint and discuss the advances that have been made in imaging of arthritis with a focus on such molecular targets as folate receptor, F4/80, macrophage mannose receptor, E-selectin, intercellular adhesion molecule-1, phosphatidylserine, and matrix metalloproteinases. In addition, we discuss a new tool that is being introduced in the field, namely the use of nanobodies as tracers. Finally, we describe additional molecules displaying specific features in joint inflammation and propose these as potential new molecular imaging targets, more specifically receptor activator of nuclear factor ?B and its ligand, chemokine receptors, vascular cell adhesion molecule-1, ?V?3 integrin, P2X7 receptor, suppression of tumorigenicity 2, dendritic cell-specific transmembrane protein, and osteoclast-stimulatory transmembrane protein. PMID:25099015

  18. Per-oral endoscopic myotomy: emerging indications and evolving techniques.

    PubMed

    Minami, Hitomi; Inoue, Haruhiro; Haji, Amyn; Isomoto, Hajime; Urabe, Shigetoshi; Hashiguchi, Keiichi; Matsushima, Kayoko; Akazawa, Yuko; Yamaguchi, Naoyuki; Ohnita, Ken; Takeshima, Fuminao; Nakao, Kazuhiko

    2015-01-01

    Esophageal achalasia is a benign esophageal motility disorder resulting from an impaired relaxation of the lower esophageal sphincter. The principles of treatment involve disruption of the sphincter at the esophagogastric junction. Treatment techniques include balloon dilatation, botulinum toxin injection, and surgical myotomy. In 2008, per-oral endoscopic myotomy (POEM) was introduced by Inoue et?al. as an endoscopic myotomy with no skin incision. The procedure has been well accepted and widely applied owing to its minimal invasiveness and high cure rates. Moreover, there have been discussions on wider indications for POEM and new technical developments have been reported. The present article reviews the historical background and present status of POEM, as well as future prospects for its application in the treatment of esophageal achalasia. PMID:25040806

  19. Emerging techniques for soil analysis via mid-infrared spectroscopy

    NASA Astrophysics Data System (ADS)

    Linker, R.; Shaviv, A.

    2009-04-01

    Transmittance and diffuse reflectance (DRIFT) spectroscopy in the mid-IR range are well-established methods for soil analysis. Over the last five years, additional mid-IR techniques have been investigated, and in particular: 1. Attenuated total reflectance (ATR) Attenuated total reflectance is commonly used for analysis of liquids and powders for which simple transmittance measurements are not possible. The method relies on a crystal with a high refractive index, which is in contact with the sample and serves as a waveguide for the IR radiation. The radiation beam is directed in such a way that it hits the crystal/sample interface several times, each time penetrating a few microns into the sample. Since the penetration depth is limited to a few microns, very good contact between the sample and the crystal must be ensured, which can be achieved by working with samples close to water saturation. However, the strong absorbance of water in the mid-infrared range as well as the absorbance of some soil constituents (e.g., calcium carbonate) interfere with some of the absorbance bands of interest. This has led to the development of several post-processing methods for analysis of the spectra. The FTIR-ATR technique has been successfully applied to soil classification as well as to determination of nitrate concentration [1, 6-8, 10]. Furthermore, Shaviv et al. [12] demonstrated the possibility of using fiber optics as an ATR devise for direct determination of nitrate concentration in soil extracts. Recently, Du et al. [5] showed that it is possible to differentiate between 14N and 15N in such spectra, which opens very promising opportunities for developing FTIR-ATR based methods for investigating nitrogen transformation in soils by tracing changes in N-isotopic species. 2. Photo-acoustic spectroscopy Photoacoustic spectroscopy (PAS) is based on absorption-induced heating of the sample, which produces pressure fluctuations in a surrounding gas. These fluctuations are recorded by a microphone and constitute the PAS signal. The major advantage of this method is that it is suitable for highly absorbing solid samples such as soils without any special pretreatment. This method has been applied successfully to soil classification and to quantitative determination of soil properties such as available nitrogen, phosphorus and potassium, organic matter or calcium carbonate content [2-4]. 3. FTIR-based determination of ion concentration using ion-exchange membranes In addition to the previous direct methods, mid-infrared spectroscopy can also be used to estimate nutrient availability or ion availability indirectly by combining FTIR with ion-exchange membranes. Such membranes are commonly used in studies dealing with nutrient availability, in which standard chemical methods are used to determine the amount of nutrients sorbed onto the membranes. Chemical analysis can be replaced by mid-IR spectroscopy of the loaded membrane, using either the transmittance or photo-acoustic technique depending on the type of membrane [9, 11]. The present work reviews these techniques and the chemometrics tools required for accurate interpretation of the spectra and discusses the potentials and limitations of each method. References 1. Borenstein A., R. Linker, I. Shmulevich and A. Shaviv (2006). Determination of soil nitrate and water content using attenuated total reflectance spectroscopy. Applied Spectroscopy, 60: 1267-1272. 2. Du, C., R. Linker and A. Shaviv (2007). Characterization of soils using photoacoustic mid-infrared spectroscopy. Applied Spectroscopy, 61: 1063-1067. 3. Du, C., R. Linker and A. Shaviv (2008). Identification of agricultural Mediterranean soils using mid-infrared photoacoustic spectroscopy. Geoderma, 143: 85-90. 4. Du, C., J. Zhou, H. Wang, X. Chen, A. Zhu and J. Zhang (2008). Determiantion of soil properties using Fourier transform mid-infrared photoacoustic spectroscopy. Vibrational Spectroscopy (In press). 5. Du, C., R. Linker, A. Shaviv and Z. Jianmin. In situ evaluation of net nitrification rate in Terra rossa soil using FTIR-ATR

  20. Mobile information access: A study of emerging search behavior on the mobile Internet

    Microsoft Academic Search

    Karen Church; Barry Smyth; Paul Cotter; Keith Bradley

    2007-01-01

    It is likely that mobile phones will soon come to rival more traditional devices as the primary platform for information access. Consequently, it is important to understand the emerging information access behavior of mobile Internet (MI) users especially in relation to their use of mobile handsets for information browsing and query-based search. In this article, we describe the results of

  1. FOAMSearch.net: A custom search engine for emergency medicine and critical care.

    PubMed

    Raine, Todd; Thoma, Brent; Chan, Teresa M; Lin, Michelle

    2015-08-01

    The number of online resources read by and pertinent to clinicians has increased dramatically. However, most healthcare professionals still use mainstream search engines as their primary port of entry to the resources on the Internet. These search engines use algorithms that do not make it easy to find clinician-oriented resources. FOAMSearch, a custom search engine (CSE), was developed to find relevant, high-quality online resources for emergency medicine and critical care (EMCC) clinicians. Using Google(TM) algorithms, it searches a vetted list of >300 blogs, podcasts, wikis, knowledge translation tools, clinical decision support tools and medical journals. Utilisation has increased progressively to >3000 users/month since its launch in 2011. Further study of the role of CSEs to find medical resources is needed, and it might be possible to develop similar CSEs for other areas of medicine. PMID:25939364

  2. Overcoming Barriers to the Use of Osteopathic Manipulation Techniques in the Emergency Department

    PubMed Central

    Roberge, Raymond J.; Roberge, Marc R.

    2009-01-01

    Background: Osteopathic Manipulation Techniques (OMT) have been shown to be effective therapeutic modalities in various clinical settings, but appear to be underutilized in the emergency department (ED) setting. Objective: To examine barriers to the use of OMT in the ED and provide suggestions to ameliorate these barriers. Methods: Literature review Results: While the medical literature cites numerous obstacles to the use of OMT in the ED setting, most can be positively addressed through education, careful planning, and ongoing research into use of these techniques. Recent prospective clinical trials of OMT have demonstrated the utility of these modalities. Conclusion: Osteopathic Manipulation Techniques are useful therapeutic modalities that could be utilized to a greater degree in the ED. As the number of osteopathic emergency physicians increases, the opportunity to employ these techniques should increase. PMID:19718381

  3. The First View Concept: introduction of industrial flow techniques into emergency medicine organization.

    PubMed

    Hogan, Barbara; Rasche, Christoph; von Reinersdorff, Andrea Braun

    2012-06-01

    The number of patients seeking treatment in emergency departments is rising, although many governments are seeking to reduce expenditure on health. Emergency departments must achieve more with the same resources or perform the same functions with fewer resources. Patients demand higher emergency clinical care quality, with low waiting times viewed as a key quality criterion by many patients. The objective of this study was to create an improved working system in emergency departments that cuts patient waiting times for first specialty physician contact. Techniques from industrial flow management were applied to the working process of an emergency department and the concept was named 'First View.' A total of 3269 patient contacts using the First View Concept during a treatment month showed statistical significance. Before introduction, a total 3230 patients in a comparative treatment month had a median waiting time before the first doctor contact of 47.6 min, a first quartile waiting time of 36.1 min, and a third quartile waiting time of 62.7 min. After introduction, 3269 patients had a median waiting time before first specialty physician contact of 11.2 min, a first quartile waiting time of 9.1 min, and a third quartile waiting time of 15.2 min. Industrial flow concepts can achieve significant improvements in emergency department workflows in countries in which sufficient numbers of specialty physicians are available. More attention to the organization of emergency department working processes is needed, especially involving lean management. PMID:22186149

  4. ANALYSIS OF EMERGING NDE TECHNIQUES: METHODS FOR EVALUATING AND IMPLEMENTING CONTINUOUS ONLINE MONITORING

    SciTech Connect

    Cumblidge, Stephen E.; Doctor, Steven R.; Bond, Leonard J.; Taylor, Theodore T.; Lupold, Timothy R.; Hull, Amy; Malik, Shah

    2009-08-05

    One of the goals of the program for the proactive management of materials degradation (PMMD) is to manage proactively the in-service degradation of metallic components in aging NPPs. As some forms of degradation, such as stress corrosion cracking, are characterized by a long initiation time followed by a rapid growth phase, new inspection or monitoring technologies may be required. New nondestructive evaluation (NDE) techniques that may be needed include techniques to find stress corrosion cracking (SCC) precursors, on-line monitoring techniques to detect cracks as they initiate and grow, as well as advances in NDE technologies. This paper reports on the first part of the development of a methodology to determine the effectiveness of these emerging NDE techniques for managing metallic degradation. This methodology will draw from experience derived from evaluating techniques that have "emerged" in the past. The methodology will follow five stages: a definition of inspection parameters, a technical evaluation, laboratory testing, round robin testing, and the design of a performance demonstration program. This methodology will formalize the path taken for previous techniques and set a predictable course for future NDE techniques. This paper then applies the expert review section of the methodology to the acoustic emission technique to evaluate the use of acoustic emission in performing continuous online monitoring of reactor components.

  5. Review of neutron calibration facilities and monitoring techniques: new needs for emerging fields.

    PubMed

    Gressier, V

    2014-10-01

    Neutron calibration facilities and monitoring techniques have been developed since the middle of the 20th century to support research and nuclear power energy development. The technical areas needing reference neutron fields and related instruments were mainly cross section measurements, radiation protection, dosimetry and fission reactors, with energy ranging from a few millielectronvolts to about 20 MeV. The reference neutron fields and calibration techniques developed for these purposes will be presented in this paper. However, in recent years, emerging fields have brought new needs for calibration facilities and monitoring techniques. These new challenges for neutron metrology will be exposed with their technical difficulties. PMID:24344349

  6. Optimization techniques applied to neural networks: Line search implementation for back propagation

    Microsoft Academic Search

    Kim L. Jones; Irvin J. Lustig; A. L. Kornhasuer

    1990-01-01

    An introductory study to determine the feasibility and benefits of applying optimization techniques to standard learning algorithms in neural networks is presented. A gradient-descent (GD) algorithm that includes a line search for determining a better step size is implemented. This algorithm is compared to the traditional back propagation (BP) technique without the search. The comparison is made with an effort

  7. Are internet searches a reliable source of information for answering residents' clinical questions in the emergency room

    Microsoft Academic Search

    Diane G. Schwartz; June Abbas; Richard Krause; Ronald Moscati; Shravanti Halpern

    2010-01-01

    Emergency Department (ED) residents perceived Internet resources to be reliable and regularly searched the Internet to answer clinical questions in the ED. A single blinded prospective study was conducted to determine if Emergency Medicine residents (EMR) working in a teaching hospital could accurately answer clinical questions, such as those that routinely occur in an ED, using only Google. Thirty-three EMR

  8. New international Program to Assess the Reliability of Emerging Nondestructive Techniques (PARENT)

    NASA Astrophysics Data System (ADS)

    Prokofiev, Iouri; Cumblidge, Stephen E.; Csontos, Aladar A.; Braatz, Brett G.; Doctor, Steven R.

    2013-01-01

    The Nuclear Regulatory Commission established the Program to Assess the Reliability of Emerging Nondestructive Techniques (PARENT) to follow on from the successful Program for the Inspection of Nickel alloy Components. The goals of PARENT are to conduct a confirmatory assessment of the reliability of nondestructive evaluation (NDE) techniques for detecting and sizing primary water stress corrosion cracks and apply the lessons learned from PINC to a series of round-robin tests. These open and blind round-robin tests will comprise a new set of typical pressure boundary components including dissimilar metal welds and bottom-mounted instrumentation penetrations. Open round-robin tests will engage research and industry teams worldwide to investigate and demonstrate the reliability of emerging NDE techniques to detect and size flaws with a wide range of lengths, depths, orientations, and locations. Blind round-robin tests will utilize various testing organizations, whose inspectors and procedures are certified by the standards for the nuclear industry in their respective countries, to investigate the ability of established NDE techniques to detect and size flaws whose characteristics range from relatively easy to very difficult for detection and sizing. Blind and open round-robin testing started in late 2011 and early 2012, respectively. This paper will present the work scope with reports on progress, NDE methods evaluated, and project timeline for PARENT.

  9. A quasi random search technique for functional fitting of detector responses

    Microsoft Academic Search

    Tapas Bandyopadhyay; P K Sarkar

    1985-01-01

    The problem of nonlinear optimization is encountered while fitting the observed response of certain radiation detectors. In\\u000a this paper the development of an optimizing technique based on quasi random search is described. The performance of this technique\\u000a is compared with other existing methods of gradient search and linear Taylor differential correction technique in the case\\u000a of fitting the photopeak responses

  10. Emerging clinical imaging techniques for cerebral cavernous malformations: a systematic review

    PubMed Central

    Campbell, Peter G.; Jabbour, Pascal; Yadla, Sanjay; Awad, Issam A.

    2013-01-01

    Cerebral cavernous malformations (CCM) are divided into sporadic and familial forms. For clinical imaging, T2-weighted gradient-echo sequences have been shown to be more sensitive than conventional sequences. Recently more advanced imaging techniques such as high-field and susceptibility-weighted magnetic resonance imaging has been employed for the evaluation of CCMs. Furthermore, diffusion tensor imaging and functional magnetic resonance imaging have been applied to the preoperative and intraoperative management of these lesions. In this paper, the authors attempt to provide a concise review of the emerging imaging methods utilized in the clinical diagnosis and treatment of CCMs. PMID:20809764

  11. Non-touch suturing technique fails to reduce glove puncture rates in an accident and emergency department

    Microsoft Academic Search

    T K McAdam; R E McLaughlin; B McNicholl

    2004-01-01

    Objective: To assess the impact of introducing a safer non-touch suturing technique into an inner city emergency department.Methods: The rate of glove perforation, measured by electrical conductance, was used as a marker. Gloves (Bodyguards) used in suturing were collected over a two month period. Two half day suture workshops were then conducted in the emergency department and gloves were collected

  12. Search techniques and epimorphisms between certain groups and Fibonacci groups (TITLE

    E-print Network

    St Andrews, University of

    Search techniques and epimorphisms between certain groups and Fibonacci groups (TITLE CHANGED@mcs.st-andrews.ac.uk, peterc@mcs.st-andrews.ac.uk Abstract. We examine the Fibonacci lengths of all generating pairs and random search. 1991 Mathematics Subject Classification: 20F05. Keywords: Group, Fibonacci length

  13. RFI shielding and mitigation techniques for a sensitive search for the 327 MHz line of Deuterium

    E-print Network

    Ellingson, Steven W.

    RFI shielding and mitigation techniques for a sensitive search for the 327 MHz line of Deuterium the amelioration of RFI is the major challenge for the "Deuterium array". Locally generated RFI both from the array of prime importance for the search. Since almost all the RFI comes from the horizon the station array has

  14. Which Occupational Analysis Technique: Critical Incident, DACUM, and/or Information Search?

    ERIC Educational Resources Information Center

    Willett, Jan; Hermann, Graham

    1989-01-01

    In a study of competencies needed by secondary school teachers, the comparative effectiveness of three occupational analysis techniques was examined. It was found that DACUM and Information Search were equally effective, and critical incident was less effective. It was considered that both DACUM and Information Search needed to be used to obtain…

  15. Cyclic exchange neighborhood search technique for the K-means clustering problem

    E-print Network

    Thirathon, Nattavude, 1980-

    2004-01-01

    Cyclic Exchange is an application of the cyclic transfers neighborhood search technique for the k-means clustering problem. Neighbors of a feasible solution are obtained by moving points between clusters in a cycle. This ...

  16. The application of antigenic search techniques to time series forecasting

    Microsoft Academic Search

    Ian Nunn; Tony White

    2005-01-01

    Time series have been a major topic of interest and analysis for hundreds of years, with forecasting a central problem. A large body of analysis techniques has been developed, particularly from methods in statistics and signal processing. Evolutionary techniques have only recently have been applied to time series problems. To date, applications of artificial immune system (AIS) techniques have been

  17. Job Search Techniques for Fine Artists: An Advisor's Handbook.

    ERIC Educational Resources Information Center

    Lammon, Katherine R.

    This guide is intended for use by college faculty, career and placement counselors, and other student affairs personnel charged with offering career assistance to college-level fine arts students. Specific advice is offered on how to assist fine artists with the organization of their job search efforts. The information in this guide was obtained…

  18. Searching for millisecond pulsars: surveys, techniques and prospects

    NASA Astrophysics Data System (ADS)

    Stovall, K.; Lorimer, D. R.; Lynch, R. S.

    2013-11-01

    Searches for millisecond pulsars (which we here loosely define as those with periods < 20 ms) in the galactic field have undergone a renaissance in the past five years. New or recently refurbished radio telescopes utilizing cooled receivers and state-of-the art digital data acquisition systems are carrying out surveys of the entire sky at a variety of radio frequencies. Targeted searches for millisecond pulsars in point sources identified by the Fermi Gamma-ray Space Telescope have proved phenomenally successful, with over 50 discoveries in the past five years. The current sample of millisecond pulsars now numbers almost 200 and, for the first time in 25 years, now outnumbers their counterparts in galactic globular clusters. While many of these searches are motivated to find pulsars which form part of pulsar timing arrays, a wide variety of interesting systems are now being found. Following a brief overview of the millisecond pulsar phenomenon, we describe these searches and present some of the highlights of the new discoveries in the past decade. We conclude with predictions and prospects for ongoing and future surveys.

  19. The search for extra-solar terrestrial planets: techniques and technology. Proceedings. Conference, Boulder, CO (USA), 14 - 17 May 1995

    Microsoft Academic Search

    J. M. Shull; H. A. Thronson Jr.; S. A. Stern

    1996-01-01

    The following topics were dealt with: search for extrasolar terrestrial planets, techniques, technology, planetary atmosphere evolution, solar system evolution, photometric search, radial velocity searches, photon-noise limit, astrometric searches, OSI mission, GAIA mission, ground-based interferometry, FRESIP mission, DARWIN project, and public involvement in extrasolar planet detection.

  20. The Emerging Role of Vertical Search Engines in Travel Distribution: A Newly-Vulnerable Electronic Markets Perspective

    Microsoft Academic Search

    Nelson F. Granados; Robert J. Kauffman; Bradley King

    2008-01-01

    Information technology (IT) advances often create turmoil and disturb existing industry structures. We analyze the impact of the Internet and e-commerce technologies on digital intermediaries in the travel distribution sector. We suggest that the emerging role of meta-search agents, which act as shopbots for online travel, lead to the increasing vulnerability of existing intermediaries in the industry, especially the information

  1. Emerging MRI and metabolic neuroimaging techniques in mild traumatic brain injury.

    PubMed

    Lu, Liyan; Wei, Xiaoer; Li, Minghua; Li, Yuehua; Li, Wenbin

    2014-01-01

    Traumatic brain injury (TBI) is one of the leading causes of death worldwide, and mild traumatic brain injury (mTBI) is the most common traumatic injury. It is difficult to detect mTBI using a routine neuroimaging. Advanced techniques with greater sensitivity and specificity for the diagnosis and treatment of mTBI are required. The aim of this review is to offer an overview of various emerging neuroimaging methodologies that can solve the clinical health problems associated with mTBI. Important findings and improvements in neuroimaging that hold value for better detection, characterization and monitoring of objective brain injuries in patients with mTBI are presented. Conventional computed tomography (CT) and magnetic resonance imaging (MRI) are not very efficient for visualizing mTBI. Moreover, techniques such as diffusion tensor imaging, magnetization transfer imaging, susceptibility-weighted imaging, functional MRI, single photon emission computed tomography, positron emission tomography and magnetic resonance spectroscopy imaging were found to be useful for mTBI imaging. PMID:25387616

  2. Video techniques and data compared with observation in emergency trauma care

    PubMed Central

    Mackenzie, C; Xiao, Y

    2003-01-01

    Video recording is underused in improving patient safety and understanding performance shaping factors in patient care. We report our experience of using video recording techniques in a trauma centre, including how to gain cooperation of clinicians for video recording of their workplace performance, identify strengths of video compared with observation, and suggest processes for consent and maintenance of confidentiality of video records. Video records are a rich source of data for documenting clinician performance which reveal safety and systems issues not identified by observation. Emergency procedures and video records of critical events identified patient safety, clinical, quality assurance, systems failures, and ergonomic issues. Video recording is a powerful feedback and training tool and provides a reusable record of events that can be repeatedly reviewed and used as research data. It allows expanded analyses of time critical events, trauma resuscitation, anaesthesia, and surgical tasks. To overcome some of the key obstacles in deploying video recording techniques, researchers should (1) develop trust with video recorded subjects, (2) obtain clinician participation for introduction of a new protocol or line of investigation, (3) report aggregated video recorded data and use clinician reviews for feedback on covert processes and cognitive analyses, and (4) involve multidisciplinary experts in medicine and nursing. PMID:14645896

  3. Controlled random search technique for estimation of convective heat transfer coefficient

    Microsoft Academic Search

    R. C. Mehta; S. B. Tiwari

    2007-01-01

    This paper is concerned with a method for solving inverse heat conduction problem. The method is based on the controlled random\\u000a search (CRS) technique in conjunction with modified Newton–Raphson method. The random search procedure does not need the computation\\u000a of derivative of the function to be evaluated. Therefore, it is independent of the calculation of the sensitivity coefficient\\u000a for nonlinear

  4. The Co-Emergence of Machine Techniques, Paper-and-Pencil Techniques, and Theoretical Reflection: A Study of CAS Use in Secondary School Algebra

    ERIC Educational Resources Information Center

    Kieran, Carolyn; Drijvers, Paul

    2006-01-01

    This paper addresses the dialectical relation between theoretical thinking and technique, as they co-emerge in a combined computer algebra (CAS) and paper-and-pencil environment. The theoretical framework in this ongoing study consists of the instrumental approach to tool use and an adaptation of Chevallard's anthropological theory. The main aim…

  5. Search for life on Mars: Evaluation of techniques

    Microsoft Academic Search

    D. E Schwartz; R. L Mancinelli; M. R White

    1995-01-01

    An important question for exobiology is, did life evolve on Mars? To answer this question, experiments must be conducted on the martian surface. Given current mission constraints on mass, power, and volume, these experiments can only be performed using proposed analytical techniques such as: electron microscopy, X-ray fluorescence, X-ray diffraction, a-proton backscatter, g-ray spectrometry, differential thermal analysis, differential scanning calorimetry,

  6. Effectiveness of capture techniques for rails in emergent marsh and agricultural wetlands

    USGS Publications Warehouse

    Perkins, Marie; King, S.L.; Linscombe, J.

    2010-01-01

    A reliable and effective technique for capturing rails would improve researchers' ability to study these secretive marsh birds. The time effectiveness and capture success of four methods for capturing rails in emergent marsh and agricultural wetlands in southern Louisiana and Texas were evaluated during winter and breeding seasons. Methods were hand and net capture from an airboat at night, an all-terrain vehicle (ATV) at night, an ATV during daylight rice harvest and passive capture using drop-door traps with drift fencing. Five hundred and twenty rails were captured (and 21 recaptures): 192 King Rails (Rallus elegans), 74 Clapper Rails (R. longirostris), 110 Virginia Rails (R. limicola), 125 Sora (Porzana Carolina) and 40 Yellow Rails (Coturnicops noveboracensis). Methods used at night were effective at capturing rails: capture from airboats yielded 2.13 rails per hour each airboat was operated and capture from ATVs yielded 1.80 rails per hour each ATV was operated. During daylight, captures from ATVs during rice harvest (0.25 rails per hour each ATV was operated) and passive drop-door traps with drift fencing (0.0054 rails per trap hour) were both inefficient.

  7. A hybrid optimization technique coupling an evolutionary and a local search algorithm

    NASA Astrophysics Data System (ADS)

    Kelner, Vincent; Capitanescu, Florin; Leonard, Olivier; Wehenkel, Louis

    2008-06-01

    Evolutionary algorithms are robust and powerful global optimization techniques for solving large-scale problems that have many local optima. However, they require high CPU times, and they are very poor in terms of convergence performance. On the other hand, local search algorithms can converge in a few iterations but lack a global perspective. The combination of global and local search procedures should offer the advantages of both optimization methods while offsetting their disadvantages. This paper proposes a new hybrid optimization technique that merges a genetic algorithm with a local search strategy based on the interior point method. The efficiency of this hybrid approach is demonstrated by solving a constrained multi-objective mathematical test-case.

  8. A SOUND SOURCE LOCALIZATION TECHNIQUE TO SUPPORT SEARCH AND RESCUE IN LOUD NOISE ENVIRONMENTS

    NASA Astrophysics Data System (ADS)

    Yoshinaga, Hiroshi; Mizutani, Koichi; Wakatsuki, Naoto

    At some sites of earthquakes and other disasters, rescuers search for people buried under rubble by listening for the sounds which they make. Thus developing a technique to localize sound sources amidst loud noise will support such search and rescue operations. In this paper, we discuss an experiment performed to test an array signal processing technique which searches for unperceivable sound in loud noise environments. Two speakers simultaneously played a noise of a generator and a voice decreased by 20 dB (= 1/100 of power) from the generator noise at an outdoor space where cicadas were making noise. The sound signal was received by a horizontally set linear microphone array 1.05 m in length and consisting of 15 microphones. The direction and the distance of the voice were computed and the sound of the voice was extracted and played back as an audible sound by array signal processing.

  9. Application of multivariable search techniques to the optimization of airfoils in a low speed nonlinear inviscid flow field

    NASA Technical Reports Server (NTRS)

    Hague, D. S.; Merz, A. W.

    1975-01-01

    Multivariable search techniques are applied to a particular class of airfoil optimization problems. These are the maximization of lift and the minimization of disturbance pressure magnitude in an inviscid nonlinear flow field. A variety of multivariable search techniques contained in an existing nonlinear optimization code, AESOP, are applied to this design problem. These techniques include elementary single parameter perturbation methods, organized search such as steepest-descent, quadratic, and Davidon methods, randomized procedures, and a generalized search acceleration technique. Airfoil design variables are seven in number and define perturbations to the profile of an existing NACA airfoil. The relative efficiency of the techniques are compared. It is shown that elementary one parameter at a time and random techniques compare favorably with organized searches in the class of problems considered. It is also shown that significant reductions in disturbance pressure magnitude can be made while retaining reasonable lift coefficient values at low free stream Mach numbers.

  10. Multi-Database Searching in the Behavioral Sciences--Part I: Basic Techniques and Core Databases.

    ERIC Educational Resources Information Center

    Angier, Jennifer J.; Epstein, Barbara A.

    1980-01-01

    Outlines practical searching techniques in seven core behavioral science databases accessing psychological literature: Psychological Abstracts, Social Science Citation Index, Biosis, Medline, Excerpta Medica, Sociological Abstracts, ERIC. Use of individual files is discussed and their relative strengths/weaknesses are compared. Appended is a list…

  11. Forward-Tracking: A Technique for Searching Beyond Failure Elena Marchiori1 3

    E-print Network

    Marchiori, Elena

    is a kind of dual of chronological back-tracking: if a program globally failsto find a solution,then a new is concerned, forward-tracking only needs a limited fixed-size amount of extra memory w.r.t. the originalForward-Tracking: A Technique for Searching Beyond Failure Elena Marchiori1 3 Massimo Marchiori2

  12. Local Search Techniques for Temporal Planning in LPG Alfonso Gerevini Ivan Serina Alessandro Saetti Sergio Spinoni

    E-print Network

    Gerevini, Alfonso E.

    reachability information to weight the elements (TA­graphs) in the search neighbor­ hood that resolve and on a graph­based representation called ``Temporal Action Graphs'' (TA­graphs). In this paper we present some of the performance of LPG on a large set of test problems used in the competition shows that our techniques can

  13. QUEST: A Keyword Search System for Relational Data based on Semantic and Machine Learning Techniques

    E-print Network

    Velegrakis, Yannis

    QUEST: A Keyword Search System for Relational Data based on Semantic and Machine Learning training data and/or with hidden data sources such as those found in the Deep Web. 1. INTRODUCTION databases that combines semantic and machine learning techniques for transforming keyword queries

  14. Large-vocabulary dictation using SRI's DECIPHER speech recognition system: progressive search techniques

    Microsoft Academic Search

    Hy Murveit; John Butzberger; Vassilios Digalakis; Mitch Weintraub

    1993-01-01

    The authors describe a technique called progressive search which is useful for developing and implementing speech recognition systems with high computational requirements. The scheme iteratively uses more and more complex recognition schemes, where each iteration constrains the speech space of the next. An algorithm called the forward-backward word-life algorithm is described. It can generate a word lattice in a progressive

  15. A Simple Dimensionality Reduction Technique for Fast Similarity Search in Large Time Series Databases

    Microsoft Academic Search

    Eamonn J. Keogh; Michael J. Pazzani

    2000-01-01

    We address the problem of similarity search in large time series data- bases. We introduce a novel-dimensionality reduction technique that supports an indexing algorithm that is more than an order of magnitude faster than the previous best known method. In addition to being much faster our approach has numerous other advantages. It is simple to understand and implement, allows more

  16. Project funded by the Future and Emerging Technologies arm of the IST Programme Biology Inspired techniques

    E-print Network

    Montresor, Alberto

    2004 Emergence Emergence is all around us a city car traffic the brain the immune system an ant Amoebae Chemotaxis Immune system Epidemics (gossip) Aggregation Neurons Regeneration #12;8© Babaoglu 2004 BISON biological inspirations Social insects, ants Amoebae Chemotaxis Immune system Epidemics

  17. JUST in time health emergency interventions: an innovative approach to training the citizen for emergency situations using virtual reality techniques and advanced IT tools (the Web-CD).

    PubMed

    Manganas, A; Tsiknakis, M; Leisch, E; Karefilaki, L; Monsieurs, K; Bossaert, L L; Giorgini, F

    2004-01-01

    This paper reports the results of the first of the two systems developed by JUST, a collaborative project supported by the European Union under the Information Society Technologies (IST) Programme. The most innovative content of the project has been the design and development of a complementary training course for non-professional health emergency operators, which supports the traditional learning phase, and which purports to improve the retention capability of the trainees. This was achieved with the use of advanced information technology techniques, which provide adequate support and can help to overcome the present weaknesses of the existing training mechanisms. PMID:15747936

  18. JUST in time health emergency interventions: an innovative approach to training the citizen for emergency situations using virtual reality techniques and advanced IT tools (the VR Tool).

    PubMed

    Manganas, A; Tsiknakis, M; Leisch, E; Ponder, M; Molet, T; Herbelin, B; Magnetat-Thalmann, N; Thalmann, D; Fato, M; Schenone, A

    2004-01-01

    This paper reports the results of the second of the two systems developed by JUST, a collaborative project supported by the European Union under the Information Society Technologies (IST) Programme. The most innovative content of the project has been the design and development of a complementary training course for non-professional health emergency operators, which supports the traditional learning phase, and which purports to improve the retention capability of the trainees. This was achieved with the use of advanced information technology techniques, which provide adequate support and can help to overcome the present weaknesses of the existing training mechanisms. PMID:15747937

  19. Artificial intelligence search techniques for optimization of the cold source geometry

    SciTech Connect

    Azmy, Y.Y.

    1988-01-01

    Most optimization studies of cold neutron sources have concentrated on the numerical prediction or experimental measurement of the cold moderator optimum thickness which produces the largest cold neutron leakage for a given thermal neutron source. Optimizing the geometrical shape of the cold source, however, is a more difficult problem because the optimized quantity, the cold neutron leakage, is an implicit function of the shape which is the unknown in such a study. We draw an analogy between this problem and a state space search, then we use a simple Artificial Intelligence (AI) search technique to determine the optimum cold source shape based on a two-group, r-z diffusion model. We implemented this AI design concept in the computer program AID which consists of two modules, a physical model module and a search module, which can be independently modified, improved, or made more sophisticated. 7 refs., 1 fig.

  20. Data classification using metaheuristic Cuckoo Search technique for Levenberg Marquardt back propagation (CSLM) algorithm

    NASA Astrophysics Data System (ADS)

    Nawi, Nazri Mohd.; Khan, Abdullah; Rehman, M. Z.

    2015-05-01

    A nature inspired behavior metaheuristic techniques which provide derivative-free solutions to solve complex problems. One of the latest additions to the group of nature inspired optimization procedure is Cuckoo Search (CS) algorithm. Artificial Neural Network (ANN) training is an optimization task since it is desired to find optimal weight set of a neural network in training process. Traditional training algorithms have some limitation such as getting trapped in local minima and slow convergence rate. This study proposed a new technique CSLM by combining the best features of two known algorithms back-propagation (BP) and Levenberg Marquardt algorithm (LM) for improving the convergence speed of ANN training and avoiding local minima problem by training this network. Some selected benchmark classification datasets are used for simulation. The experiment result show that the proposed cuckoo search with Levenberg Marquardt algorithm has better performance than other algorithm used in this study.

  1. Sound localization by the barn owl ( Tyto alba ) measured with the search coil technique

    Microsoft Academic Search

    Eric I. Knudsen; Gary G. Blasdel; Masakazu Konishi

    1979-01-01

    1.The dynamics and accuracy of sound localization by the barn owl (Tyto alba) were studied by exploiting the natural head-orienting response of the owl to novel sound stimuli. Head orientation and movement were measured using an adaptation of the search coil technique which provided continous high resolution azimuthal and elevational information during the behavior.2.The owls responded to sound sources with

  2. A combined analysis technique for the search for fast magnetic monopoles with the MACRO detector

    Microsoft Academic Search

    M. Ambrosio; R. Antolini; G. Auriemma; D. Bakari; A. Baldini; G. C. Barbarino; B. C. Barish; G. Battistoni; Y. Becherini; R. Bellotti; C. Bemporad; P. Bernardini; H. Bilokon; C. Bloise; M. Brigida; S. Bussino; F. Cafagna; M. Calicchio; D. Campana; M. Carboni; R. Caruso; S. Cecchini; F. Cei; V. Chiarella; B. C. Choudhary; S. Coutu; G. De Cataldo; H. Dekhissi; C. De Marzo; I. De Mitri; J. Derkaoui; M. De Vincenzi; A. DiCredico; O. Erriquez; C. Favuzzi; P. Fusco; G. Giacomelli; N. Giglietto; M. Giorgini; A. Grillo; F. Guarino; C. Gustavino; A. Habig; R. Heinz; E. Iarocci; E. Katsavounidis; I. Katsavounidis; E. Kearns; H. Kim; S. Kyriazopoulou; D. S. Levin; P. Lipari; N. P. Longley; M. J. Longo; F. Loparco; F. Maaroufi; G. Mancarella; S. Manzoor; A. Margiotta; D. Martello; A. Marzari-Chiesa; M. N. Mazziotta; D. G. Michael; P. Monacelli; T. Montaruli; M. Monteno; S. Mufson; J. Musser; D. Nicolò; R. Nolty; C. Orth; G. Osteria; O. Palamara; V. Patera; L. Patrizii; R. Pazzi; C. W. Peck; L. Perrone; S. Petrera; V. Popa; J. Reynoldson; F. Ronga; A. Rrhioua; C. Satriano; E. Scapparone; K. Scholberg; A. Sciubba; P. Serra; M. Sioli; G. Sirri; M. Sitta; P. Spinelli; M. Spinetti; R. Steinberg; J. L. Stone; A. Surdo; G. Tarlè; V. Togo; M. Vakili; C. W. Walter; R. Webb

    2002-01-01

    We describe a search method for fast moving (?=v\\/c>5×10?3) magnetic monopoles using simultaneously the scintillator, streamer tube and track-etch subdetectors of the MACRO apparatus. The first two subdetectors are used primarily for the identification of candidates while the track-etch one is used as the final tool for their rejection or confirmation. Using this technique, a first sample of more than

  3. Asteroid Families: Search of a 12,487Asteroid Sample Using Two Different Clustering Techniques

    Microsoft Academic Search

    V. Zappalà; Ph. Bendjoya; A. Cellino; P. Farinella; C. Froeschle

    1995-01-01

    A sample of over 12,487 asteroid proper element triplets, computed by A. Milani and Z. Kneževi? (1994, Icarus 107, 219-254), has been searched for statistically significant and robust families by both the hierarchical clustering (HCM) and the wavelet analysis (WAM) automated techniques. The current sample includes almost 8000 unnumbered objects with relatively well-determined orbits, which allow us to extend the

  4. A refined search tree technique for Dominating Set on planar graphs

    Microsoft Academic Search

    Jochen Alber; Hongbing Fan; Michael R. Fellows; Henning Fernau; Rolf Niedermeier; Frances A. Rosamond; Ulrike Stege

    2005-01-01

    We establish a refined search tree technique for the parameterized DOMINATING SET problem on planar graphs. Here, we are given an undirected graph and we ask for a set of at most k vertices such that every other vertex has at least one neighbor in this set. We describe algorithms with running times O(8kn) and O(8kk+n3), where n is the

  5. Oil spill removal techniques and equipment. (Latest citations from fluidex). Published Search

    SciTech Connect

    NONE

    1995-06-01

    The bibliography contains citations concerning the development and assessment of techniques and equipment used to control and remove oil spills. Chemical dispersants, booms, and mechanical skimmers are reviewed. Topics include recovery operations, emergency response, frogmat systems, bioremediation, and environmental monitoring. The effects of spills on marine life and fishing industries are examined. (Contains 50-250 citations and includes a subject term index and title list.)

  6. An adaptive image enhancement technique by combining cuckoo search and particle swarm optimization algorithm.

    PubMed

    Ye, Zhiwei; Wang, Mingwei; Hu, Zhengbing; Liu, Wei

    2015-01-01

    Image enhancement is an important procedure of image processing and analysis. This paper presents a new technique using a modified measure and blending of cuckoo search and particle swarm optimization (CS-PSO) for low contrast images to enhance image adaptively. In this way, contrast enhancement is obtained by global transformation of the input intensities; it employs incomplete Beta function as the transformation function and a novel criterion for measuring image quality considering three factors which are threshold, entropy value, and gray-level probability density of the image. The enhancement process is a nonlinear optimization problem with several constraints. CS-PSO is utilized to maximize the objective fitness criterion in order to enhance the contrast and detail in an image by adapting the parameters of a novel extension to a local enhancement technique. The performance of the proposed method has been compared with other existing techniques such as linear contrast stretching, histogram equalization, and evolutionary computing based image enhancement methods like backtracking search algorithm, differential search algorithm, genetic algorithm, and particle swarm optimization in terms of processing time and image quality. Experimental results demonstrate that the proposed method is robust and adaptive and exhibits the better performance than other methods involved in the paper. PMID:25784928

  7. An Adaptive Image Enhancement Technique by Combining Cuckoo Search and Particle Swarm Optimization Algorithm

    PubMed Central

    Ye, Zhiwei; Wang, Mingwei; Hu, Zhengbing; Liu, Wei

    2015-01-01

    Image enhancement is an important procedure of image processing and analysis. This paper presents a new technique using a modified measure and blending of cuckoo search and particle swarm optimization (CS-PSO) for low contrast images to enhance image adaptively. In this way, contrast enhancement is obtained by global transformation of the input intensities; it employs incomplete Beta function as the transformation function and a novel criterion for measuring image quality considering three factors which are threshold, entropy value, and gray-level probability density of the image. The enhancement process is a nonlinear optimization problem with several constraints. CS-PSO is utilized to maximize the objective fitness criterion in order to enhance the contrast and detail in an image by adapting the parameters of a novel extension to a local enhancement technique. The performance of the proposed method has been compared with other existing techniques such as linear contrast stretching, histogram equalization, and evolutionary computing based image enhancement methods like backtracking search algorithm, differential search algorithm, genetic algorithm, and particle swarm optimization in terms of processing time and image quality. Experimental results demonstrate that the proposed method is robust and adaptive and exhibits the better performance than other methods involved in the paper. PMID:25784928

  8. Demeter, persephone, and the search for emergence in agent-based models

    Microsoft Academic Search

    M. J. North; T. R. Howe; N. T. Collier; J. R. Vos; PantaRei Corp

    2006-01-01

    In Greek mythology, the earth goddess Demeter was unable to find her daughter Persephone after Persephone was abducted by Hades, the god of the underworld. Demeter is said to have embarked on a long and frustrating, but ultimately successful, search to find her daughter. Unfortunately, long and frustrating searches are not confined to Greek mythology. In modern times, agent-based modelers

  9. State of the art techniques for nuclear emergency planning population analysis

    Microsoft Academic Search

    Rebecca L. Steinman

    2002-01-01

    Nuclear emergency planning activities rely heavily upon computer-based decision support tools to gather and analyze extensive data. In many cases, much of this data has a distinctive relationship to a geographic location. Geographical information systems (GIS) provide a means to visualize, explore, and analyze geographically linked data, often revealing patterns, relationships, and trends that are not apparent in database or

  10. The Communication Model: An Emerging Systems Analysis Technique for Continuing Education Research.

    ERIC Educational Resources Information Center

    Walling, H. Griffin

    Continuing educators can gain knowledge about their programs' environments, as well as predict the outcomes of change processes, by utilizing an emerging systems concept called the communication model. Utilization of the communication model involves three steps: (1) diagramming the perceived reality of the organizational system, (2) using the…

  11. Research on the key techniques of wireless communication for emergency information system

    Microsoft Academic Search

    Zhigang Yang

    2010-01-01

    As China's continuous improvement in the degree of information, the wireless communication network has covered all regions of the country, and information has also brought a great deal of information network security issues. In this paper, firstly, the information security emergency response procedures and disposal system are proposed according to the comprehensive analysis of weak links in information security defense

  12. Emerging Innovation system and Environmental Innovation: the case of mitigation techniques and CCS.1

    E-print Network

    Paris-Sud XI, Université de

    this point of view, mitigation techinques, especially Carbon Capture and Storage techniques, from fossil, Energy Economics, Carbon Capture and Storage (CCS), Carbon Capture and Storage from Biomass (BCCS) 1, with a special focus on a particular mitigation technique, Carbon Capture and Storage. It will begin

  13. Wilderness emergency medical services medical director course: core content developed with delphi technique.

    PubMed

    Millin, Michael G; Hawkins, Seth; Demond, Anthony; Stiller, Gregory; McGinnis, Henderson D; Baker Rogers, Janna; Smith, William R

    2015-06-01

    The National Association of Emergency Medical Services Physicians' (NAEMSP) position on the role of medical oversight within an operational Emergency Medical Service (EMS) program highlights the importance of integrating specially trained medical directors within the structure of these programs. In response, the NAEMSP Wilderness EMS (WEMS) Committee recognized the need for the development of an educational curriculum to provide physicians with the unique skills needed to be a medical director for a WEMS agency. This paper describes the Delphi process used to create the subject matter core content, as well as the actual core content developed. This core content was the foundation for the development of a specific WEMS medical director curriculum, the Wilderness EMS Medical Director Course. PMID:25698182

  14. Comparative evaluation of differential laser-induced perturbation spectroscopy as a technique to discriminate emerging skin pathology

    NASA Astrophysics Data System (ADS)

    Kozikowski, Raymond T.; Smith, Sarah E.; Lee, Jennifer A.; Castleman, William L.; Sorg, Brian S.; Hahn, David W.

    2012-06-01

    Fluorescence spectroscopy has been widely investigated as a technique for identifying pathological tissue; however, unrelated subject-to-subject variations in spectra complicate data analysis and interpretation. We describe and evaluate a new biosensing technique, differential laser-induced perturbation spectroscopy (DLIPS), based on deep ultraviolet (UV) photochemical perturbation in combination with difference spectroscopy. This technique combines sequential fluorescence probing (pre- and post-perturbation) with sub-ablative UV perturbation and difference spectroscopy to provide a new spectral dimension, facilitating two improvements over fluorescence spectroscopy. First, the differential technique eliminates significant variations in absolute fluorescence response within subject populations. Second, UV perturbations alter the extracellular matrix (ECM), directly coupling the DLIPS response to the biological structure. Improved biosensing with DLIPS is demonstrated in vivo in a murine model of chemically induced skin lesion development. Component loading analysis of the data indicates that the DLIPS technique couples to structural proteins in the ECM. Analysis of variance shows that DLIPS has a significant response to emerging pathology as opposed to other population differences. An optimal likelihood ratio classifier for the DLIPS dataset shows that this technique holds promise for improved diagnosis of epithelial pathology. Results further indicate that DLIPS may improve diagnosis of tissue by augmenting fluorescence spectra (i.e. orthogonal sensing).

  15. The Emergence of Networking Abstractions and Techniques in TinyOS

    Microsoft Academic Search

    Philip Levis; Samuel Madden; David Gay; Joseph Polastre; Robert Szewczyk; Alec Woo; Eric A. Brewer; David E. Culler

    2004-01-01

    The constraints of sensor networks, an emerging area of network research, require new approaches in system de- sign. We study the evolution of abstractions and tech- niques in TinyOS, a popular sensor network operating system. Examining CVS repositories of several research institutions that use TinyOS, we trace three areas of de- velopment: single-hop networking, multi-hop network- ing, and network services.

  16. Overviews of Emerging Research Techniques in Hearing, Bioacoustics, and Biomechanics: Proceedings of the 1981 Meeting

    SciTech Connect

    Not Available

    1982-01-01

    These proceedings of the 1981 annual meeting of the Committee on Hearing, Bioacoustics, and Biomechanics cover topics of emerging research in several areas of interest to the Committee. Topics covered include: hair cell function; transduction process of hair cells; speech synthesis; machine recognition of words; neuromagnetic analysis of sensory systems; tinnitus; tactile communication of speech; and biodynamic research at the Air Force Aerospace Medical Research Laboratory.

  17. Efficient Keyword Search over Virtual XML Views

    Microsoft Academic Search

    Feng Shao; Lin Guo; Chavdar Botev; Anand Bhaskar; Muthiah M. Muthiah Chettiar; Fan Yang; Jayavel Shanmugasundaram

    2007-01-01

    Emerging applications such as personalized portals, enter- prise search and web integration systems often require key- word search over semi-structured views. However, tradi- tional information retrieval techniques are likely to be ex- pensive in this context because they rely on the assumption that the set of documents being searched is materialized. In this paper, we present a system architecture and

  18. Established and Emerging Atmospheric Pressure Surface Sampling/Ionization Techniques for Mass Spectrometry

    SciTech Connect

    Van Berkel, Gary J [ORNL; Pasilis, Sofie P [ORNL; Ovchinnikova, Olga S [ORNL

    2008-01-01

    The number and type of atmospheric pressure techniques suitable for sampling analytes from surfaces, forming ions from those analytes, and subsequently transporting those ions into vacuum for interrogation by mass spectrometry has rapidly expanded over the last several years. Moreover, the literature in this area is complicated by an explosion in acronyms for these techniques, many of which provide no information relating to the chemical or physical processes involved. In this review, we sort this vast array of techniques into a relatively few categories on the basis of the approaches used for surface sampling and ionization. For each technique, we explain, as best known, many of the underlying principles of operation, describe representative applications, and in some cases, discuss needed research or advancements and attempt to forecast their future analytical utility.

  19. An overview on in situ micronization technique – An emerging novel concept in advanced drug delivery

    PubMed Central

    Vandana, K.R.; Prasanna Raju, Y.; Harini Chowdary, V.; Sushma, M.; Vijay Kumar, N.

    2013-01-01

    The use of drug powders containing micronized drug particles has been increasing in several pharmaceutical dosage forms to overcome the dissolution and bioavailability problems. Most of the newly developed drugs are poorly water soluble which limits dissolution rate and bioavailability. The dissolution rate can be enhanced by micronization of the drug particles. The properties of the micronized drug substance such as particle size, size distribution, shape, surface properties, and agglomeration behaviour and powder flow are affected by the type of micronization technique used. Mechanical communition, spray drying and supercritical fluid (SCF) technology are the most commonly employed techniques for production of micronized drug particles but the characteristics of the resulting drug product cannot be controlled using these techniques. Hence, a newer technique called in situ micronization is developed in order to overcome the limitations associated with the other techniques. This review summarizes the existing knowledge on in situ micronization techniques. The properties of the resulting drug substance obtained by in situ micronization were also compared. PMID:25161371

  20. FastChi: A Fast Chi-squared Technique For Period Search of Irregularly Sampled Data

    NASA Astrophysics Data System (ADS)

    Palmer, David M.

    2010-10-01

    The Fast Chi-Squared Algorithm is a fast, powerful technique for detecting periodicity. It was developed for analyzing variable stars, but is applicable to many of the other applications where the Fast Fourier Transforms (FFTs) or other periodograms (such as Lomb-Scargle) are currently used. The Fast Chi-squared technique takes a data set (e.g. the brightness of a star measured at many different times during a series of observations) and finds the periodic function that has the best frequency and shape (to an arbitrary number of harmonics) to fit the data. Among its advantages are: Statistical efficiency: all of the data are used, weighted by their individual error bars, giving a result with a significance calibrated in well-understood Chi-squared statistics. Sensitivity to harmonic content: many conventional techniques look only at the significance (or the amplitude) of the fundamental sinusoid and discard the power of the higher harmonics. Insensitivity to the sample timing: you won't find a period of 24 hours just because you take your observations at night. You do not need to window your data. The frequency search is gridded more tightly than the traditional "integer number of cycles over the span of observations", eliminating power loss from peaks that fall between the grid points. Computational speed: The complexity of the algorithm is O(NlogN), where N is the number of frequencies searched, due to its use of the FFT.

  1. Intelligent technique to search for patterns within images in massive databases

    SciTech Connect

    Vega, J.; Murari, A.; Pereira, A.; Portas, A.; Castro, P. [JET-EFDA, Culham Science Center, OX14 3DB Abingdon (United Kingdom)

    2008-10-15

    An image retrieval system for JET has been developed. The image database contains the images of the JET high speed visible camera. The system input is a pattern selected inside an image and the output is the group of frames (defined by their discharge numbers and time slices) that show patterns similar to the selected one. This approach is based on morphological pattern recognition and it should be emphasized that the pattern is found independently of its location in the frame. The technique encodes images into characters and, therefore, it transforms the pattern search into a character-matching problem.

  2. The Search for Choice in Public Education: The Emergence of Charter Schools.

    ERIC Educational Resources Information Center

    Mulholland, Lori; Amsler, Mary

    A major alternative in school choice is the concept of charter schools: public schools delivering public education and using public dollars, but organized by individuals or groups, not school boards, and operating legally as private, nonprofit organizations or cooperatives. This paper explores the charter school as another option in the search for…

  3. Can future storage technologies benefit from existing or emerging nano-tools and techniques?

    NASA Astrophysics Data System (ADS)

    Mansuripur, Masud

    2009-05-01

    Certain ideas and techniques are being developed outside the field of optical/magnetic/ electronic recording, but the storage community could benefit from these developments once we become sufficiently familiar with the new concepts and methodologies. Developments in the areas of nano- and bio-photonics, fluorescence microscopy, quantum-dots, optical tweezers, micro- and nano-fluidics, femtosecond lasers, etc., have the potential to influence future generations of data storage systems.

  4. An improved exploratory search technique for pure integer linear programming problems

    NASA Technical Reports Server (NTRS)

    Fogle, F. R.

    1990-01-01

    The development is documented of a heuristic method for the solution of pure integer linear programming problems. The procedure draws its methodology from the ideas of Hooke and Jeeves type 1 and 2 exploratory searches, greedy procedures, and neighborhood searches. It uses an efficient rounding method to obtain its first feasible integer point from the optimal continuous solution obtained via the simplex method. Since this method is based entirely on simple addition or subtraction of one to each variable of a point in n-space and the subsequent comparison of candidate solutions to a given set of constraints, it facilitates significant complexity improvements over existing techniques. It also obtains the same optimal solution found by the branch-and-bound technique in 44 of 45 small to moderate size test problems. Two example problems are worked in detail to show the inner workings of the method. Furthermore, using an established weighted scheme for comparing computational effort involved in an algorithm, a comparison of this algorithm is made to the more established and rigorous branch-and-bound method. A computer implementation of the procedure, in PC compatible Pascal, is also presented and discussed.

  5. Emergence of an optimal search strategy from a simple random walk

    PubMed Central

    Sakiyama, Tomoko; Gunji, Yukio-Pegio

    2013-01-01

    In reports addressing animal foraging strategies, it has been stated that Lévy-like algorithms represent an optimal search strategy in an unknown environment, because of their super-diffusion properties and power-law-distributed step lengths. Here, starting with a simple random walk algorithm, which offers the agent a randomly determined direction at each time step with a fixed move length, we investigated how flexible exploration is achieved if an agent alters its randomly determined next step forward and the rule that controls its random movement based on its own directional moving experiences. We showed that our algorithm led to an effective food-searching performance compared with a simple random walk algorithm and exhibited super-diffusion properties, despite the uniform step lengths. Moreover, our algorithm exhibited a power-law distribution independent of uniform step lengths. PMID:23804445

  6. A model undergraduate research institute for study of emerging non-contact measurement technologies and techniques

    NASA Astrophysics Data System (ADS)

    Dvonch, Curt; Smith, Christopher; Bourne, Stefanie; Blandino, Joseph R.; Miles, Jonathan J.

    2006-04-01

    The Infrared Development and Thermal Structures Laboratory (IDTSL) is an undergraduate research laboratory in the College of Integrated Science and Technology (CISAT) at James Madison University (JMU) in Harrisonburg, Virginia. During the 1997-98 academic year, Dr. Jonathan Miles established the IDTSL at JMU with the support of a collaborative research grant from the NASA Langley Research Center and with additional support from the College of Integrated Science and Technology at JMU. The IDTSL supports research and development efforts that feature non-contact thermal and mechanical measurements and advance the state of the art. These efforts all entail undergraduate participation intended to significantly enrich their technical education. The IDTSL is funded by major government organizations and the private sector and provides a unique opportunity to undergraduates who wish to participate in projects that push the boundaries of non-contact measurement technologies, and provides a model for effective hands-on, project oriented, student-centered learning that reinforces concepts and skills introduced within the Integrated Science and Technology (ISAT) curriculum. The lab also provides access to advanced topics and emerging measurement technologies; fosters development of teaming and communication skills in an interdisciplinary environment; and avails undergraduates of professional activities including writing papers, presentation at conferences, and participation in summer internships. This paper provides an overview of the Infrared Development and Thermal Structures Laboratory, its functionality, its record of achievements, and the important contribution it has made to the field of non-contact measurement and undergraduate education.

  7. Breast cancer screening: emerging role of new imaging techniques as adjuncts to mammography.

    PubMed

    Houssami, Nehmat; Lord, Sarah J; Ciatto, Stefano

    2009-05-01

    Early detection of breast cancer has been shown to reduce breast cancer deaths in randomised controlled trials (RCTs) of mammography in women aged 50-69 years, with weaker evidence of benefit in those aged 40-49 or 70 years and older. Magnetic resonance imaging (MRI) and ultrasonography have been evaluated in breast cancer screening, relative to, or in addition to, mammography, in selected populations; neither test has been examined in an RCT, and thus evidence of associated screening benefit is uncertain. MRI is more sensitive than mammography in screening women with suspected or proven inherited mutations of the breast cancer genes. The addition of MRI in screening this population detects 8-24 additional cancers per 1000 screens, but also significantly increases a woman's risk of being recalled for investigation or surgical biopsy for false-positive findings. In Australia, Medicare funding for MRI screening of women in specific risk groups was announced in February 2009. Ultrasonography can detect cancers not identified on mammography in asymptomatic women with dense breast tissue. Incremental ultrasound cancer detection is reported in 0.27%-0.46% of women with mammography-negative dense breasts; evidence varies on its association with false-positive findings. Computer-aided detection (CAD) is a complementary tool to mammography, prompting the reader to consider lesions on the mammogram that may represent cancer. Emerging evidence and improved CAD technology are likely to help define its role in breast screening. PMID:19413520

  8. X-ray microscopy; an emerging technique for semiconductor microstructure characterization

    SciTech Connect

    Padmore, H.A. [Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

    1998-11-01

    The advent of third generation synchrotron radiation x-ray sources, such as the Advanced Light Source (ALS) at Berkeley have enabled the practical realization of a wide range of new techniques in which mature chemical or structural probes such as x-ray photoelectron spectroscopy (XPS) and x-ray diffraction are used in conjunction with microfocused x-ray beams. In this paper the characteristics of some of these new microscopes are described, particularly in reference to their applicability to the characterization of semiconductor microstructures. {copyright} {ital 1998 American Institute of Physics.}

  9. X-ray microscopy; an emerging technique for semiconductor microstructure characterization

    SciTech Connect

    Padmore, H. A. [Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

    1998-11-24

    The advent of third generation synchrotron radiation x-ray sources, such as the Advanced Light Source (ALS) at Berkeley have enabled the practical realization of a wide range of new techniques in which mature chemical or structural probes such as x-ray photoelectron spectroscopy (XPS) and x-ray diffraction are used in conjunction with microfocused x-ray beams. In this paper the characteristics of some of these new microscopes are described, particularly in reference to their applicability to the characterization of semiconductor microstructures.

  10. X-ray microscopy: An emerging technique for semiconductor microstructure characterization

    SciTech Connect

    Padmore, H.A.

    1998-05-01

    The advent of third generation synchrotron radiation x-ray sources, such as the Advanced Light Source (ALS) at Berkeley have enabled the practical realization of a wide range of new techniques in which mature chemical or structural probes such as x-ray photoelectron spectroscopy (XPS) and x-ray diffraction are used in conjunction with microfocused x-ray beams. In this paper the characteristics of some of these new microscopes are described, particularly in reference to their applicability to the characterization of semiconductor microstructures.

  11. Analysis of Search Results for the Clarification and Identification of Technology Emergence (AR-CITE)

    SciTech Connect

    Abercrombie, Robert K [ORNL] [ORNL; Schlicher, Bob G [ORNL] [ORNL; Sheldon, Frederick T [ORNL] [ORNL

    2013-01-01

    This work examines a scientometric model that clarifies and identifies the technology of emergence from initial discovery (via original scientific and conference literature), through critical discoveries(via original scientific, conference literature and patents), transitioning through Technology Readiness Levels (TRLs) and ultimately on to commercial application. The purpose of this study therefore, is to address the relationships among multiple disparate sources of information as a way to explain systematically the emergence of new technologies from innovation on through to commercial application. In one example, we investigate the combinations of four distinct and separate searchable on-line networked sources (i.e., scholarly publications and citation, patents, news archives, and on-line mapping networks) as they are assembled to become one collective network (a data set for analysis of relations). In another example, we investigate the combinations of five distinct sources (i.e., university R&D, industry R&D, product emergence, and two levels of annual market revenue [$1B and $10B]). These established networks and relationship become the basis from which to quickly analyze the temporal flow of activity (searchable events) for multiple example subject domains we investigated.

  12. Complementary and Emerging Techniques for Astrophysical Ices Processed in the Laboratory

    NASA Astrophysics Data System (ADS)

    Allodi, M. A.; Baragiola, R. A.; Baratta, G. A.; Barucci, M. A.; Blake, G. A.; Boduch, P.; Brucato, J. R.; Contreras, C.; Cuylle, S. H.; Fulvio, D.; Gudipati, M. S.; Ioppolo, S.; Ka?uchová, Z.; Lignell, A.; Linnartz, H.; Palumbo, M. E.; Raut, U.; Rothard, H.; Salama, F.; Savchenko, E. V.; Sciamma-O'Brien, E.; Strazzulla, G.

    2013-12-01

    Inter- and circumstellar ices comprise different molecules accreted on cold dust particles. These icy dust grains provide a molecule reservoir where particles can interact and react. As the grain acts as a third body, capable of absorbing energy, icy surfaces in space have a catalytic effect. Chemical reactions are triggered by a number of possible processes; (i) irradiation by light, typically UV photons from the interstellar radiation field and Ly- ? radiation emitted by excited hydrogen, but also X-rays, (ii) bombardment by particles, free atoms (most noticeably hydrogen, but also N, C, O and D-atoms), electrons, low energy ions and cosmic rays, and (iii) thermal processing. All these effects cause ices to (photo)desorb, induce fragmentation or ionization in the ice, and eventual recombination will make molecules to react and to form more and more complex species. The effects of this solid state astrochemistry are observed by astronomers; nearly 180 different molecules (not including isotopologues) have been unambiguously identified in the inter- and circumstellar medium, and the abundances of a substantial part of these species cannot be explained by gas phase reaction schemes only and must involve solid state chemistry. Icy dust grains in space experience different chemical stages. In the diffuse medium grains are barely covered by molecules, but upon gravitational collapse and darkening of the cloud, temperatures drop and dust grains start acting as micrometer sized cryopumps. More and more species accrete, until even the most volatile species are frozen. In parallel (non)energetic processing can take place, particularly during planet and star formation when radiation and particle fluxes are intense. The physical and chemical properties of ice clearly provide a snapshotroot to characterize the cosmological chemical evolution. In order to fully interpret the astronomical observations, therefore, dedicated laboratory experiments are needed that simulate dust grain formation and processing as well as ice mantle chemistry under astronomical conditions and in full control of the relevant parameters; ice morphology (i.e., structure), composition, temperature, UV and particle fluxes, etc., yielding parameters that can be used for astrochemical modeling and for comparison with the observations. This is the topic of the present manuscript. Laboratory experiments simulating the conditions in space are conducted for decades all over the world, but particularly in recent years new techniques have made it possible to study reactions involving inter- and circumstellar dust and ice analogues at an unprecedented level of detail. Whereas in the past "top-down scenarios" allowed to conclude on the importance of the solid state for the chemical enrichment of space, presently "bottom-up approaches" make it possible to fully quantify the involved reactions, and to provide information on processes at the molecular level. The recent progress in the field of "solid state laboratory astrophysics" is a consequence of the use of ultra high vacuum systems, of new radiation sources, such as synchrotrons and laser systems that allow extensions to wavelength domains that long have not been accessible, including the THz domain, and the use of highly sensitive gas phase detection techniques, explicitly applied to characterize the solid state such as fluorescence, luminescence, cavity ring-down spectroscopy and sophisticated mass spectrometric techniques. This paper presents an overview of the techniques being used in astrochemical laboratories worldwide, but it is incomplete in the sense that it summarizes the outcome of a 3-day workshop of the authors in November 2012 (at the Observatoire de Meudon in France), with several laboratories represented, but not all. The paper references earlier work, but it is incomplete with regard to latest developments of techniques used in laboratories not represented at the workshop.

  13. A simulation study of emergency lunar escape to orbit using several simplified manual guidance and control techniques

    NASA Technical Reports Server (NTRS)

    Middleton, D. B.; Hurt, G. J., Jr.

    1971-01-01

    A fixed-base piloted simulator investigation has been made of the feasibility of using any of several manual guidance and control techniques for emergency lunar escape to orbit with very simplified, lightweight vehicle systems. The escape-to-orbit vehicles accommodate two men, but one man performs all of the guidance and control functions. Three basic attitude-control modes and four manually executed trajectory-guidance schemes were used successfully during approximately 125 simulated flights under a variety of conditions. These conditions included thrust misalinement, uneven propellant drain, and a vehicle moment-of-inertia range of 250 to 12,000 slugs per square foot. Two types of results are presented - orbit characteristics and pilot ratings of vehicle handling qualities.

  14. An extended time horizon search technique for cooperative unmanned vehicles to locate mobile RF targets

    Microsoft Academic Search

    D. Pack; G. York

    2005-01-01

    In this paper, we present a behavior-based, distributed, cooperative search algorithm for multiple unmanned aerial vehicles (UAVs) to cooperatively find sub-optimal search patterns to detect moving radio frequency (RF) signal emitting targets. The overall goal of the search algorithm is to compute sub-optimal flight trajectories for participating UAVs to minimize the combined search cost: search coverage, time, fuel usage, and

  15. WISE: Hierarchical Soft Clustering of Web Page Search Results Based on Web Content Mining Techniques

    Microsoft Academic Search

    Ricardo Campos; Gaël Dias; Celia Nunes

    2006-01-01

    Typically, search engines are low precision in response to a query, retrieving lots of useless Web pages, and missing some other important ones. In this paper, we study the problem of the hierarchical clustering of Web pages search results. In particular, we propose an architecture called WISE, a meta-search engine that automatically builds clusters of related Web pages embodying one

  16. Search for tidal seismicity in Greece using different techniques: Part 2. Correlation analysis

    NASA Astrophysics Data System (ADS)

    Deshcherevskii, A. V.

    2014-01-01

    In the first part of this paper (Deshcherevskii and Sidorin, 2012b), the spectra and periodograms of time series of earthquakes in Greece were studied for various magnitude ranges and five calendar epochs. As the main result, the stable diurnal (24-h) and semidiurnal (12-h) periodicities of earthquakes were revealed. Periodicities of small amplitude related to tidal waves M2 and O1 were also revealed in some samplings. This part of the paper deals with the problems of searching for tidal effects in seismicity with traditional techniques. An alternative approach of the task is applied. The time series of earthquakes with various magnitude and representativity (magnitude of completeness) were formed. Correlation coefficients of all the time series of earthquakes were calculated with the following theoretical tide parameters: volume deformation, strain rate, module of strain rate, and smoothed diurnal tidal amplitude. Stable significant correlation of seismicity was revealed with some tidal parameters. However, it can be a result of coincidence in periods of subharmonics of diurnal seismicity rhythm with the solar tidal waves. It means that the correlation discovered could be simply caused with coincidence of two regular components in variations of the compared processes but not with gravitational tide.

  17. Tracing the wider impacts of biomedical research: a literature search to develop a novel citation categorisation technique.

    PubMed

    Jones, Teresa H; Donovan, Claire; Hanney, Steve

    2012-10-01

    There is an increasing need both to understand the translation of biomedical research into improved healthcare and to assess the range of wider impacts from health research such as improved health policies, health practices and healthcare. Conducting such assessments is complex and new methods are being sought. Our new approach involves several steps. First, we developed a qualitative citation analysis technique to apply to biomedical research in order to assess the contribution that individual papers made to further research. Second, using this method, we then proposed to trace the citations to the original research through a series of generations of citing papers. Third, we aimed eventually to assess the wider impacts of the various generations. This article describes our comprehensive literature search to inform the new technique. We searched various databases, specific bibliometrics journals and the bibliographies of key papers. After excluding irrelevant papers we reviewed those remaining for either general or specific details that could inform development of our new technique. Various characteristics of citations were identified that had been found to predict their importance to the citing paper including the citation's location; number of citation occasions and whether the author(s) of the cited paper were named within the citing paper. We combined these objective characteristics with subjective approaches also identified from the literature search to develop a citation categorisation technique that would allow us to achieve the first of the steps above, i.e., being able routinely to assess the contribution that individual papers make to further research. PMID:23024423

  18. A comparison of time conditioned and word conditioned search techniques for large vocabulary speech recognition

    Microsoft Academic Search

    Stefan Ortmanns; Hermann Ney; Frank Seide; I. Lindam

    1996-01-01

    In this paper, we compare the search effort of the word conditioned and the time conditioned tree search methods. Both methods are based on a time-synchronous, left-to-right beam search using a tree- organized lexicon. Whereas the word conditioned method is well known and widely used, the time conditioned method is novel in the context of -word vocabulary recognition. We extend

  19. Application of Rosenbrock search technique to reduce the drilling cost of a well in Bai-Hassan oil field

    SciTech Connect

    Aswad, Z.A.R.; Al-Hadad, S.M.S.

    1983-03-01

    The powerful Rosenbrock search technique, which optimizes both the search directions using the Gram-Schmidt procedure and the step size using the Fibonacci line search method, has been used to optimize the drilling program of an oil well drilled in Bai-Hassan oil field in Kirkuk, Iran, using the twodimensional drilling model of Galle and Woods. This model shows the effect of the two major controllable variables, weight on bit and rotary speed, on the drilling rate, while considering other controllable variables such as the mud properties, hydrostatic pressure, hydraulic design, and bit selection. The effect of tooth dullness on the drilling rate is also considered. Increasing the weight on the drill bit with a small increase or decrease in ratary speed resulted in a significant decrease in the drilling cost for most bit runs. It was found that a 48% reduction in this cost and a 97-hour savings in the total drilling time was possible under certain conditions.

  20. Robust Requirements Tracing via Internet Search Technology: Improving an IV and V Technique. Phase 2

    NASA Technical Reports Server (NTRS)

    Hayes, Jane; Dekhtyar, Alex

    2004-01-01

    There are three major objectives to this phase of the work. (1) Improvement of Information Retrieval (IR) methods for Independent Verification and Validation (IV&V) requirements tracing. Information Retrieval methods are typically developed for very large (order of millions - tens of millions and more documents) document collections and therefore, most successfully used methods somewhat sacrifice precision and recall in order to achieve efficiency. At the same time typical IR systems treat all user queries as independent of each other and assume that relevance of documents to queries is subjective for each user. The IV&V requirements tracing problem has a much smaller data set to operate on, even for large software development projects; the set of queries is predetermined by the high-level specification document and individual requirements considered as query input to IR methods are not necessarily independent from each other. Namely, knowledge about the links for one requirement may be helpful in determining the links of another requirement. Finally, while the final decision on the exact form of the traceability matrix still belongs to the IV&V analyst, his/her decisions are much less arbitrary than those of an Internet search engine user. All this suggests that the information available to us in the framework of the IV&V tracing problem can be successfully leveraged to enhance standard IR techniques, which in turn would lead to increased recall and precision. We developed several new methods during Phase II; (2) IV&V requirements tracing IR toolkit. Based on the methods developed in Phase I and their improvements developed in Phase II, we built a toolkit of IR methods for IV&V requirements tracing. The toolkit has been integrated, at the data level, with SAIC's SuperTracePlus (STP) tool; (3) Toolkit testing. We tested the methods included in the IV&V requirements tracing IR toolkit on a number of projects.

  1. Internet Browsing and Searching: User Evaluations of Category Map and Concept Space Techniques (Poster)

    Microsoft Academic Search

    Hsinchun Chen; Bruce R. Schatz; Andrea Houston; Robin R. Sewell; Tobun D. Ng; Chienting Lin

    1997-01-01

    ing large information spaces. Browsing and searching pages for the most part were different, this suggests that tasks are susceptible to problems of information over-a user can enhance a keyword-based search by using load and vocabulary differences. Much of the current research is aimed at the development and refinement of pecially liked the level of control that they could exert

  2. Evaluation of Maritime Vision Techniques for Aerial Search of Humans in Maritime Environments

    Microsoft Academic Search

    Paul Westall; Jason J. Ford; Peter O'Shea; Stefan Hrabar

    2008-01-01

    Searching for humans lost in vast stretches of ocean has always been a difficult task. In this paper, a range of machine vision approaches are investigated as candidate tools to mitigate the risk of human fatigue and complacency after long hours performing these kind of search tasks. Our two-phased approach utilises point target detection followed by temporal tracking of these

  3. Voting for candidates: adapting data fusion techniques for an expert search task

    Microsoft Academic Search

    Craig Macdonald; Iadh Ounis

    2006-01-01

    In an expert search task, the users' need is to identify peo- ple who have relevant expertise to a topic of interest. An expert search system predicts and ranks the expertise of a set of candidate persons with respect to the users' query. In this paper, we propose a novel approach for predicting and ranking candidate expertise with respect to

  4. Search space reduction technique for constrained optimization with tiny feasible space

    Microsoft Academic Search

    Abu S. S. M. Barkat Ullah; Ruhul A. Sarker; David Cornforth

    2008-01-01

    The hurdles in solving Constrained Optimization Problems (COP) arise from the challenge of searching a huge variable space in order to locate feasible points with acceptable solution quality. It becomes even more challenging when the feasible space is very tiny compare to the search space. Usually, the quality of the initial solutions influences the performance of the algorithm in solving

  5. Modeling search engine effectiveness for federated search

    Microsoft Academic Search

    Luo Si; Jamie Callan

    2005-01-01

    Federated search links multiple search engines into a single, virtual search system. Most prior research of federated search focused on selecting search engines that have the most relevant contents, but ignored the retrieval effectiveness of individual search engines. This omission can cause serious problems when federating search engines of different qualities.This paper proposes a federated search technique that uses utility

  6. Tracheal Intubation through the I-gel for Emergency Cesarean Section in a Patient with Multidrug Hypersensitivity: A New Technique

    PubMed Central

    Samala, Kartika Balaji; Uchiyama, Yuri; Tokinaga, Yasuyuki; Niiyama, Yukitoshi; Iwasaki, Soshi; Yamakage, Michiaki

    2014-01-01

    31-year-old female with hypersensitivity to local anesthetics and neuromuscular blocking agents presented for emergency Cesarean section. We successfully performed I-gel-assisted tracheal intubation without using neuromuscular blockers. We believe this method would be helpful in selected situations. PMID:25147741

  7. Searches

    Microsoft Academic Search

    George E. Higgins; Gennaro F. Vito; William F. Walsh

    2008-01-01

    Racial profiling is an important issue in contemporary policing. Racial profiling research has primarily involved two things: (1) examining traffic stop data, and (2) using a benchmark or baseline in the discovery of racial profiling. A smaller literature has examined the searches to uncover racial profiling. The purpose of the present study is to examine traffic stop data-in particular searches-in

  8. Emerging Jets

    E-print Network

    Pedro Schwaller; Daniel Stolarski; Andreas Weiler

    2015-05-11

    In this work, we propose a novel search strategy for new physics at the LHC that utilizes calorimeter jets that (i) are composed dominantly of displaced tracks and (ii) have many different vertices within the jet cone. Such emerging jet signatures are smoking guns for models with a composite dark sector where a parton shower in the dark sector is followed by displaced decays of dark pions back to SM jets. No current LHC searches are sensitive to this type of phenomenology. We perform a detailed simulation for a benchmark signal with two regular and two emerging jets, and present and implement strategies to suppress QCD backgrounds by up to six orders of magnitude. At the 14 TeV LHC, this signature can be probed with mediator masses as large as 1.5 TeV for a range of dark pion lifetimes, and the reach is increased further at the high-luminosity LHC. The emerging jet search is also sensitive to a broad class of long-lived phenomena, and we show this for a supersymmetric model with R-parity violation. Possibilities for discovery at LHCb are also discussed.

  9. Emerging jets

    NASA Astrophysics Data System (ADS)

    Schwaller, Pedro; Stolarski, Daniel; Weiler, Andreas

    2015-05-01

    In this work, we propose a novel search strategy for new physics at the LHC that utilizes calorimeter jets that (i) are composed dominantly of displaced tracks and (ii) have many different vertices within the jet cone. Such emerging jet signatures are smoking guns for models with a composite dark sector where a parton shower in the dark sector is followed by displaced decays of dark pions back to SM jets. No current LHC searches are sensitive to this type of phenomenology. We perform a detailed simulation for a benchmark signal with two regular and two emerging jets, and present and implement strategies to suppress QCD backgrounds by up to six orders of magnitude. At the 14 TeV LHC, this signature can be probed with mediator masses as large as 1.5 TeV for a range of dark pion lifetimes, and the reach is increased further at the high-luminosity LHC. The emerging jet search is also sensitive to a broad class of long-lived phenomena, and we show this for a supersymmetric model with R-parity violation. Possibilities for discovery at LHCb are also discussed.

  10. Emerging Jets

    E-print Network

    Schwaller, Pedro; Weiler, Andreas

    2015-01-01

    In this work, we propose a novel search strategy for new physics at the LHC that utilizes calorimeter jets that (i) are composed dominantly of displaced tracks and (ii) have many different vertices within the jet cone. Such emerging jet signatures are smoking guns for models with a composite dark sector where a parton shower in the dark sector is followed by displaced decays of dark pions back to SM jets. No current LHC searches are sensitive to this type of phenomenology. We perform a detailed simulation for a benchmark signal with two regular and two emerging jets, and present and implement strategies to suppress QCD backgrounds by up to six orders of magnitude. At the 14 TeV LHC, this signature can be probed with mediator masses as large as 1.5 TeV for a range of dark pion lifetimes, and the reach is increased further at the high-luminosity LHC. The emerging jet search is also sensitive to a broad class of long-lived phenomena, and we show this for a supersymmetric model with R-parity violation. Possibilit...

  11. Construction of a technique plan repository and evaluation system based on AHP group decision-making for emergency treatment and disposal in chemical pollution accidents.

    PubMed

    Shi, Shenggang; Cao, Jingcan; Feng, Li; Liang, Wenyan; Zhang, Liqiu

    2014-07-15

    The environmental pollution resulting from chemical accidents has caused increasingly serious concerns. Therefore, it is very important to be able to determine in advance the appropriate emergency treatment and disposal technology for different types of chemical accidents. However, the formulation of an emergency plan for chemical pollution accidents is considerably difficult due to the substantial uncertainty and complexity of such accidents. This paper explains how the event tree method was used to create 54 different scenarios for chemical pollution accidents, based on the polluted medium, dangerous characteristics and properties of chemicals involved. For each type of chemical accident, feasible emergency treatment and disposal technology schemes were established, considering the areas of pollution source control, pollutant non-proliferation, contaminant elimination and waste disposal. Meanwhile, in order to obtain the optimum emergency disposal technology schemes as soon as the chemical pollution accident occurs from the plan repository, the technique evaluation index system was developed based on group decision-improved analytical hierarchy process (AHP), and has been tested by using a sudden aniline pollution accident that occurred in a river in December 2012. PMID:24887122

  12. 3RIP Evaluation of the Performance of the Search System Using a Realtime Simulation Technique.

    ERIC Educational Resources Information Center

    Lofstrom, Mats

    This report describes a real-time simulation experiment to evaluate the performance of the search and editing system 3RIP, an interactive system written in the language BLISS on a DEC-10 computer. The test vehicle, preliminary test runs, and capacity test are detailed, and the following conclusions are reported: (1) 3RIP performs well up to the…

  13. "Hedges". . . The Sometimes Ignored Search Technique That Can Save a Lot of Time.

    ERIC Educational Resources Information Center

    Schiffmann, Genevieve N.

    1985-01-01

    Describes storing of "hedges"--lists of terms on specific subjects--for use in responding to repeated search requests which cannot be retrieved via existing controlled vocabulary. Use of hedges at National Library of Medicine and National Institutes of Health Library, frequently used examples, and Excerpta Medica hedges are highlighted. (5…

  14. A {gamma} dose distribution evaluation technique using the k-d tree for nearest neighbor searching

    SciTech Connect

    Yuan Jiankui; Chen Weimin [ICT Radiotherapy, Livingston, New Jersey 07039 (United States) and Northeast Radiation Oncology Center, Dunmore, Pennsylvania 18509 (United States); ICT Radiotherapy, Livingston, New Jersey 07039 (United States)

    2010-09-15

    Purpose: The authors propose an algorithm based on the k-d tree for nearest neighbor searching to improve the {gamma} calculation time for 2D and 3D dose distributions. Methods: The {gamma} calculation method has been widely used for comparisons of dose distributions in clinical treatment plans and quality assurances. By specifying the acceptable dose and distance-to-agreement criteria, the method provides quantitative measurement of the agreement between the reference and evaluation dose distributions. The {gamma} value indicates the acceptability. In regions where {gamma}{<=}1, the predefined criterion is satisfied and thus the agreement is acceptable; otherwise, the agreement fails. Although the concept of the method is not complicated and a quick naieve implementation is straightforward, an efficient and robust implementation is not trivial. Recent algorithms based on exhaustive searching within a maximum radius, the geometric Euclidean distance, and the table lookup method have been proposed to improve the computational time for multidimensional dose distributions. Motivated by the fact that the least searching time for finding a nearest neighbor can be an O(log N) operation with a k-d tree, where N is the total number of the dose points, the authors propose an algorithm based on the k-d tree for the {gamma} evaluation in this work. Results: In the experiment, the authors found that the average k-d tree construction time per reference point is O(log N), while the nearest neighbor searching time per evaluation point is proportional to O(N{sup 1/k}), where k is between 2 and 3 for two-dimensional and three-dimensional dose distributions, respectively. Conclusions: Comparing with other algorithms such as exhaustive search and sorted list O(N), the k-d tree algorithm for {gamma} evaluation is much more efficient.

  15. Search for long-lived heavy charged particles using a ring imaging Cherenkov technique at LHCb

    E-print Network

    LHCb collaboration; R. Aaij; B. Adeva; M. Adinolfi; A. Affolder; Z. Ajaltouni; S. Akar; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P. Alvarez Cartelle; A. A. Alves Jr; S. Amato; S. Amerio; Y. Amhis; L. An; L. Anderlini; J. Anderson; M. Andreotti; J. E. Andrews; R. B. Appleby; O. Aquines Gutierrez; F. Archilli; P. d'Argent; A. Artamonov; M. Artuso; E. Aslanides; G. Auriemma; M. Baalouch; S. Bachmann; J. J. Back; A. Badalov; C. Baesso; W. Baldini; R. J. Barlow; C. Barschel; S. Barsuk; W. Barter; V. Batozskaya; V. Battista; A. Bay; L. Beaucourt; J. Beddow; F. Bedeschi; I. Bediaga; L. J. Bel; I. Belyaev; E. Ben-Haim; G. Bencivenni; S. Benson; J. Benton; A. Berezhnoy; R. Bernet; A. Bertolin; M. -O. Bettler; M. van Beuzekom; A. Bien; S. Bifani; T. Bird; A. Birnkraut; A. Bizzeti; T. Blake; F. Blanc; J. Blouw; S. Blusk; V. Bocci; A. Bondar; N. Bondar; W. Bonivento; S. Borghi; A. Borgia; M. Borsato; T. J. V. Bowcock; E. Bowen; C. Bozzi; D. Brett; M. Britsch; T. Britton; J. Brodzicka; N. H. Brook; A. Bursche; J. Buytaert; S. Cadeddu; R. Calabrese; M. Calvi; M. Calvo Gomez; P. Campana; D. Campora Perez; L. Capriotti; A. Carbone; G. Carboni; R. Cardinale; A. Cardini; P. Carniti; L. Carson; K. Carvalho Akiba; R. Casanova Mohr; G. Casse; L. Cassina; L. Castillo Garcia; M. Cattaneo; Ch. Cauet; G. Cavallero; R. Cenci; M. Charles; Ph. Charpentier; M. Chefdeville; S. Chen; S. -F. Cheung; N. Chiapolini; M. Chrzaszcz; X. Cid Vidal; G. Ciezarek; P. E. L. Clarke; M. Clemencic; H. V. Cliff; J. Closier; V. Coco; J. Cogan; E. Cogneras; V. Cogoni; L. Cojocariu; G. Collazuol; P. Collins; A. Comerma-Montells; A. Contu; A. Cook; M. Coombes; S. Coquereau; G. Corti; M. Corvo; I. Counts; B. Couturier; G. A. Cowan; D. C. Craik; A. Crocombe; M. Cruz Torres; S. Cunliffe; R. Currie; C. D'Ambrosio; J. Dalseno; P. N. Y. David; A. Davis; K. De Bruyn; S. De Capua; M. De Cian; J. M. De Miranda; L. De Paula; W. De Silva; P. De Simone; C. -T. Dean; D. Decamp; M. Deckenhoff; L. Del Buono; N. Déléage; D. Derkach; O. Deschamps; F. Dettori; B. Dey; A. Di Canto; F. Di Ruscio; H. Dijkstra; S. Donleavy; F. Dordei; M. Dorigo; A. Dosil Suárez; D. Dossett; A. Dovbnya; K. Dreimanis; G. Dujany; F. Dupertuis; P. Durante; R. Dzhelyadin; A. Dziurda; A. Dzyuba; S. Easo; U. Egede; V. Egorychev; S. Eidelman; S. Eisenhardt; U. Eitschberger; R. Ekelhof; L. Eklund; I. El Rifai; Ch. Elsasser; S. Ely; S. Esen; H. M. Evans; T. Evans; A. Falabella; C. Färber; C. Farinelli; N. Farley; S. Farry; R. Fay; D. Ferguson; V. Fernandez Albor; F. Ferrari; F. Ferreira Rodrigues; M. Ferro-Luzzi; S. Filippov; M. Fiore; M. Fiorini; M. Firlej; C. Fitzpatrick; T. Fiutowski; P. Fol; M. Fontana; F. Fontanelli; R. Forty; O. Francisco; M. Frank; C. Frei; M. Frosini; J. Fu; E. Furfaro; A. Gallas Torreira; D. Galli; S. Gallorini; S. Gambetta; M. Gandelman; P. Gandini; Y. Gao; J. García Pardiñas; J. Garofoli; J. Garra Tico; L. Garrido; D. Gascon; C. Gaspar; R. Gauld; L. Gavardi; G. Gazzoni; A. Geraci; D. Gerick; E. Gersabeck; M. Gersabeck; T. Gershon; Ph. Ghez; A. Gianelle; S. Gianì; V. Gibson; L. Giubega; V. V. Gligorov; C. Göbel; D. Golubkov; A. Golutvin; A. Gomes; C. Gotti; M. Grabalosa Gándara; R. Graciani Diaz; L. A. Granado Cardoso; E. Graugés; E. Graverini; G. Graziani; A. Grecu; E. Greening; S. Gregson; P. Griffith; L. Grillo; O. Grünberg; B. Gui; E. Gushchin; Yu. Guz; T. Gys; C. Hadjivasiliou; G. Haefeli; C. Haen; S. C. Haines; S. Hall; B. Hamilton; T. Hampson; X. Han; S. Hansmann-Menzemer; N. Harnew; S. T. Harnew; J. Harrison; J. He; T. Head; V. Heijne; K. Hennessy; P. Henrard; L. Henry; J. A. Hernando Morata; E. van Herwijnen; M. Heß; A. Hicheur; D. Hill; M. Hoballah; C. Hombach; W. Hulsbergen; T. Humair; N. Hussain; D. Hutchcroft; D. Hynds; M. Idzik; P. Ilten; R. Jacobsson; A. Jaeger; J. Jalocha; E. Jans; A. Jawahery; F. Jing; M. John; D. Johnson; C. R. Jones; C. Joram; B. Jost; N. Jurik; S. Kandybei; W. Kanso; M. Karacson; T. M. Karbach; S. Karodia; M. Kelsey; I. R. Kenyon; M. Kenzie; T. Ketel; B. Khanji; C. Khurewathanakul; S. Klaver; K. Klimaszewski; O. Kochebina; M. Kolpin; I. Komarov; R. F. Koopman; P. Koppenburg; L. Kravchuk; K. Kreplin; M. Kreps; G. Krocker; P. Krokovny; F. Kruse; W. Kucewicz; M. Kucharczyk; V. Kudryavtsev; K. Kurek; T. Kvaratskheliya; V. N. La Thi; D. Lacarrere; G. Lafferty; A. Lai; D. Lambert; R. W. Lambert; G. Lanfranchi; C. Langenbruch; B. Langhans; T. Latham; C. Lazzeroni; R. Le Gac; J. van Leerdam; J. -P. Lees; R. Lefèvre; A. Leflat; J. Lefrançois; O. Leroy; T. Lesiak; B. Leverington; Y. Li; T. Likhomanenko; M. Liles; R. Lindner; C. Linn; F. Lionetto; B. Liu; S. Lohn; I. Longstaff; J. H. Lopes; D. Lucchesi; H. Luo; A. Lupato; E. Luppi; O. Lupton; F. Machefert; I. V. Machikhiliyan; F. Maciuc; O. Maev; S. Malde; A. Malinin; G. Manca; G. Mancinelli; P. Manning; A. Mapelli; J. Maratas

    2015-06-30

    A search is performed for heavy long-lived charged particles using 3.0 fb$^{-1}$ of pp collisions collected at $\\sqrt{s}$= 7 and 8 TeV with the LHCb detector. The search is mainly based on the response of the ring imaging Cherenkovdetectors to distinguish the heavy, slow-moving particles from muons. No evidence is found for the production of such long-lived states. The results are expressed as limits on the Drell-Yan production of pairs of long-lived particles, with both particles in the LHCb pseudorapidity acceptance, $1.8 < \\eta < 4.9$. The mass-dependent cross-section upper limits are in the range 2-4 fb (at 95\\% CL) for masses between 124 and 309 GeV/c$^2$.

  16. GA Techniques Applied to Contour Search in Images of Bovine Livestock

    Microsoft Academic Search

    Horacio M. González Velasco; Carlos J. García Orellana; Miguel Macías Macías; M. Isabel Acevedo Sotoca

    2001-01-01

    In this work a system based on genetic algorithms is presented that generates valid initializations for deformable models\\u000a methods. Following a systematics similar to that used by other authors, a model of the shape we are looking for (cows in lateral\\u000a position) is constructed using PDM, and later the search within the image is made based on instances of that

  17. An efficient technique for revealing visual search strategies with classification images

    Microsoft Academic Search

    Abtine Tavassoli; Ian van der Linde; Alan C. Bovik; Lawrence K. Cormack

    2007-01-01

    We propose a novel variant of the classification image paradigm that allows us to rapidly reveal strategies used by observers\\u000a in visual search tasks. We make use of eye tracking, 1\\/f noise, and a grid-like stimulus ensemble and also introduce a new\\u000a classification taxonomy that distinguishes between foveal and peripheral processes. We tested our method for 3 human observers\\u000a and

  18. Reactive local search techniques for the maximum conjunctive constraint satisfaction problem (k-CCSP)

    Microsoft Academic Search

    Roberto Battiti; Marco Protasi

    1996-01-01

    In this paper the performance of the Hamming-based Reactive Tabu Search algorithm (HRTS)previously proposed for the Maximum Satisfiability problem is studied for the differentConjunctive Constraint Satisfaction problem. In addition, the use of non-oblivious functionsrecently proposed in the framework of approximation algorithms is investigated.In particular, two relevant special cases of the k-Conjunctive Constraint Satisfaction problemare considered: Maximum Directed Cut and Maximum...

  19. Hodgkin’s lymphoma emerging radiation treatment techniques: trade-offs between late radio-induced toxicities and secondary malignant neoplasms

    PubMed Central

    2013-01-01

    Background Purpose of this study is to explore the trade-offs between radio-induced toxicities and second malignant neoplasm (SMN) induction risk of different emerging radiotherapy techniques for Hodgkin’s lymphoma (HL) through a comprehensive dosimetric analysis on a representative clinical model. Methods Three different planning target volume (PTVi) scenarios of a female patient with supradiaphragmatic HL were used as models for the purpose of this study. Five treatment radiation techniques were simulated: an anterior-posterior parallel-opposed (AP-PA), a forward intensity modulated (FIMRT), an inverse intensity modulated (IMRT), a Tomotherapy (TOMO), a proton (PRO) technique. A radiation dose of 30 Gy or CGE was prescribed. Dose-volume histograms of PTVs and organs-at-risk (OARs) were calculated and related to available dose-volume constraints. SMN risk for breasts, thyroid, and lungs was estimated through the Organ Equivalent Dose model considering cell repopulation and inhomogeneous organ doses. Results With similar level of PTVi coverage, IMRT, TOMO and PRO plans generally reduced the OARs’ dose and accordingly the related radio-induced toxicities. However, only TOMO and PRO plans were compliant with all constraints in all scenarios. For the IMRT and TOMO plans an increased risk of development of breast, and lung SMN compared with AP-PA and FIMRT techniques was estimated. Only PRO plans seemed to reduce the risk of predicted SMN compared with AP-PA technique. Conclusions Our model–based study supports the use of advanced RT techniques to successfully spare OARs and to reduce the risk of radio-induced toxicities in HL patients. However, the estimated increase of SMNs’ risk inherent to TOMO and IMRT techniques should be carefully considered in the evaluation of a risk-adapted therapeutic strategy. PMID:23360559

  20. An Analysis of the LUX First WIMP Search Run Using Effective Field Theory Techniques

    NASA Astrophysics Data System (ADS)

    Larsen, Nicole; LUX Collaboration

    2014-09-01

    The LUX (Large Underground Xenon) experiment is a dark matter direct detection experiment located 4850 feet underground at the Sanford Underground Research Facility in Lead, SD. During Summer 2013, LUX collected 10065 kg-days of WIMP search data, ultimately reporting a minimum cross-section limit for spin-independent WIMP-nucleon elastic scattering of 7.6 × 10-46 cm2 for 33 GeV-mass WIMPs. Direct detection experiments typically characterize WIMP-nucleon interactions in terms of spin-independent (SI) and spin-dependent (SD) couplings. However, Fitzpatrick et al. show that the total set of effective field theory operators allowed by basic symmetry considerations result in additional qualitatively distinct nuclear responses for WIMP-nucleon interactions. These new operators can also interfere with the standard SI and SD operators, potentially enhancing or suppressing them, and should therefore be taken into consideration to ensure that direct detection experiments do not leave any gaps in the theoretical parameter space being probed. Here I discuss recent work toward using the LUX 2013 WIMP search dataset to set limits on these new operators.

  1. Examination of the capability of the laser-induced breakdown spectroscopy (LIBS) technique as the emerging laser-based analytical tool for analyzing trace elements in coal

    NASA Astrophysics Data System (ADS)

    Idris, N.; Ramli, M.; Mahidin, Hedwig, R.; Lie, Z. S.; Kurniawan, K. H.

    2014-09-01

    Due to its superior advantageous over the conventional analytical tools, laser-induced breakdown spectroscopy (LIBS) technique nowadays is becoming an emerging analytical tools and it is expected to be new future super star of analytical tool. This technique is based on the use of optical emission from the laser-induced plasma for analyzing spectrochemically the constituent and content of the sampled object. The capability of this technique is examined on analysis of trace elements in coal sample. Coal is one difficult sample to analyze due to its complex chemical composition and physical properties. It is inherent that coal contains trace element including heavy metal, thus mining, beneficiation and utilization poses hazard to environment and to human beings. The LIBS apparatus used was composed by a laser system (Nd-YAG: Quanta Ray; LAB SERIES; 1,064 nm; 500 mJ; 8 ns) and optical detector (McPherson model 2061; 1,000 mm focal length; f/8.6 Czerny-Turner) equipped with Andor I*Star intensified CCD 1024×256 pixels. The emitted laser was focused onto coal sample with a focusing lens of +250 mm. The plasma emission was collected by a fiber optics and sent to the the spectrograph. The coal samples were taken from Province of Aceh. As the results, several trace elements including heavy metal (As, Mn, Pb) can surely be observed, implying the eventuality of LIBS technique to analysis the presence of trace element in coal.

  2. On the Use of Normalized Edit Distances and an Efficient kNN Search Technique (kAESA) for Fast and Accurate String Classification

    E-print Network

    Juan, Alfons

    On the Use of Normalized Edit Distances and an Efficient k­NN Search Technique (k­AESA) for Fast are available. Among these, we have adopted the so called k­Approximating­Eliminating Search Algorithm (k­ AESA those obtained by other approaches that have been applied to the same task. 2. The k­AESA Given a metric

  3. Duplex Doppler Ultrasound Examination of the Portal Venous System: An Emerging Novel Technique for the Estimation of Portal Vein Pressure

    Microsoft Academic Search

    Ashwani K. Singal; Masood Ahmad; Roger D. Soloway

    2010-01-01

    Purpose  Measurement of portal venous pressure in patients with portal hypertension is important to assess efficacy of beta blockers\\u000a in patients with esophageal varices. Currently, the gold standard for measurement of portal venous pressure is the estimation\\u000a of hepatic venous pressure gradient (HVPG). Being an invasive technique, serial measurements of HVPG are not feasible in clinical\\u000a practice. In this respect, duplex

  4. Oil-spill removal techniques and equipment. (Latest citations from Fluidex data base). Published Search

    SciTech Connect

    Not Available

    1992-09-01

    The bibliography contains citations concerning equipment and techniques for the control, dispersal, cleanup, and disposal of oil spills. Topics include chemical dispersants, booms, and mechanical skimmers. The citations emphasize spill removal for harbors, estuaries, and shorelines, and examine spill impact on water birds and marine life. (Contains a minimum of 180 citations and includes a subject term index and title list.)

  5. Oil spill removal techniques and equipment. (Latest citations from Fluidex). Published Search

    SciTech Connect

    Not Available

    1993-12-01

    The bibliography contains citations concerning equipment and techniques for the control, dispersal, cleanup, and disposal of oil spills. Topics include chemical dispersants, booms, and mechanical skimmers. The citations emphasize spill removal for harbors, estuaries, and shorelines, and examine spill impact on water birds and marine life. (Contains a minimum of 195 citations and includes a subject term index and title list.)

  6. Oil spill removal techniques and equipment. (Latest citations from Oceanic abstracts). Published Search

    SciTech Connect

    Not Available

    1993-12-01

    The bibliography contains citations concerning equipment and techniques used for control, detection, dispersion, and disposal of oil spills particularly within harbors and estuaries. Topics include chemical dispersants, mechanical skimmers, and biodegradation. The citations also explore spill impact on habitats, marine life, and water birds. (Contains 250 citations and includes a subject term index and title list.)

  7. Oil spill removal techniques and equipment. (Latest citations from Oceanic abstracts). Published Search

    SciTech Connect

    NONE

    1995-01-01

    The bibliography contains citations concerning equipment and techniques used for control, detection, dispersion, and disposal of oil spills particularly within harbors and estuaries. Topics include chemical dispersants, mechanical skimmers, and biodegradation. The citations also explore spill impact on habitats, marine life, and water birds. (Contains 250 citations and includes a subject term index and title list.)

  8. Oil spill removal techniques and equipment. (Latest citations from Fluidex (Fluid Engineering Abstracts) database). Published Search

    SciTech Connect

    Not Available

    1993-10-01

    The bibliography contains citations concerning equipment and techniques for the control, dispersal, cleanup, and disposal of oil spills. Topics include chemical dispersants, booms, and mechanical skimmers. The citations emphasize spill removal for harbors, estuaries, and shorelines, and examine spill impact on water birds and marine life. (Contains a minimum of 195 citations and includes a subject term index and title list.)

  9. Oil-spill removal techniques and equipment. (Latest citations from Oceanic Abstracts). Published Search

    SciTech Connect

    Not Available

    1992-06-01

    The bibliography contains citations concerning equipment and techniques used for control, detection, dispersion, and disposal of oil spills particularly within harbors and estuaries. Topics include chemical dispersants, mechanical skimmers, and biodegradation. The citations also explore spill impact on habitats, marine life, and water birds. (Contains 250 citations and includes a subject term index and title list.)

  10. Oil spill removal techniques and equipment. (Latest citations from Oceanic Abstracts database). Published Search

    SciTech Connect

    Not Available

    1993-10-01

    The bibliography contains citations concerning equipment and techniques used for control, detection, dispersion, and disposal of oil spills particularly within harbors and estuaries. Topics include chemical dispersants, mechanical skimmers, and biodegradation. The citations also explore spill impact on habitats, marine life, and water birds. (Contains 250 citations and includes a subject term index and title list.)

  11. A combinatorial technique for the search of solid state gas sensor materials

    NASA Astrophysics Data System (ADS)

    Scheidtmann, Jens; Frantzen, Andreas; Frenzer, Gerald; Maier, Wilhelm F.

    2005-01-01

    A complete high throughput assembly for the search for electrochemical sensor materials is described. It is a primary screening device, whose sole purpose is to locate most efficiently new materials with potential sensor properties. The set-up consists of a gas tight reactor for the sensor libraries, an IR-camera, a switching multimeter for dc-resistance measurements, a test gas supply array for different test gases, software for control of experimental flow, data recording, data evaluation, data mining and a database. The sensor libraries consist of a ceramic alumina plate with 64 interdigital electrodes and associated contact pads arranged on the outer rim of the library. The materials are deposited on top of the electrodes and calcined before use. The reactor houses 128 spring loaded electrodes for electrochemical monitoring and a sapphire plate for IR-monitoring of materials responses to exposure to test gases. Data are evaluated automatically and stored in a database for visualization and data mining.

  12. Development of a Navigator and Imaging Techniques for the Cryogenic Dark Matter Search Detectors

    SciTech Connect

    Wilen, Chris; /Carleton Coll. /KIPAC, Menlo Park

    2011-06-22

    This project contributes to the detection of flaws in the germanium detectors for the Cryogenic Dark Matter Search (CDMS) experiment. Specifically, after imaging the detector surface with a precise imaging and measuring device, they developed software to stitch the resulting images together, applying any necessary rotations, offsets, and averaging, to produce a smooth image of the whole detector that can be used to detect flaws on the surface of the detector. These images were also tiled appropriately for the Google Maps API to use as a navigation tool, allowing viewers to smoothly zoom and pan across the detector surface. Automated defect identification can now be implemented, increasing the scalability of the germanium detector fabrication.

  13. PSO-Based Support Vector Machine with Cuckoo Search Technique for Clinical Disease Diagnoses

    PubMed Central

    Fu, Hui

    2014-01-01

    Disease diagnosis is conducted with a machine learning method. We have proposed a novel machine learning method that hybridizes support vector machine (SVM), particle swarm optimization (PSO), and cuckoo search (CS). The new method consists of two stages: firstly, a CS based approach for parameter optimization of SVM is developed to find the better initial parameters of kernel function, and then PSO is applied to continue SVM training and find the best parameters of SVM. Experimental results indicate that the proposed CS-PSO-SVM model achieves better classification accuracy and F-measure than PSO-SVM and GA-SVM. Therefore, we can conclude that our proposed method is very efficient compared to the previously reported algorithms. PMID:24971382

  14. PSO-based support vector machine with cuckoo search technique for clinical disease diagnoses.

    PubMed

    Liu, Xiaoyong; Fu, Hui

    2014-01-01

    Disease diagnosis is conducted with a machine learning method. We have proposed a novel machine learning method that hybridizes support vector machine (SVM), particle swarm optimization (PSO), and cuckoo search (CS). The new method consists of two stages: firstly, a CS based approach for parameter optimization of SVM is developed to find the better initial parameters of kernel function, and then PSO is applied to continue SVM training and find the best parameters of SVM. Experimental results indicate that the proposed CS-PSO-SVM model achieves better classification accuracy and F-measure than PSO-SVM and GA-SVM. Therefore, we can conclude that our proposed method is very efficient compared to the previously reported algorithms. PMID:24971382

  15. A Search for WIMP Dark Matter using an Optimized Chi-square Technique on the Final Data from the Cryogenic Dark Matter Search Experiment (CDMS II)

    NASA Astrophysics Data System (ADS)

    Manungu Kiveni, Joseph

    During the last two decades, cosmology has become a precision observational science thanks (in part) to the incredible number of experiments performed to better understand the composition of the universe. The large amount of data accumulated strongly indicates that the bulk of the universe's matter is in the form of non-baryonic matter that does not interact electromagnetically. Combined evidence from the dynamics of galaxies and galaxy clusters confirms that most of the mass in the universe is not composed of any known form of matter. Measurements of the cosmic microwave background, big bang nucleosynthesis and many other experiments indicate that ˜80% of the matter in the universe is dark, non-relativistic and cold. The dark matter resides in the halos surrounding galaxies, galaxy clusters and other large-scale structures. Weakly Interacting Massive Particles (WIMPs) are well motivated class of dark matter candidates that arise naturally in supersymmetric extensions to the Standard Model of particles physics, and can be produced as non-relativistic thermal relics in the early universe with about the right density to account for the missing mass. The Cryogenic Dark Matter Search (CDMS) experiment seeks to directly detect the keV-scale energy deposited by WIMPs in the galactic halo when they scatter from nuclei in the crystalline detectors made of germanium and silicon. These detectors, called Z-sensitive Ionization and Phonon detectors (ZIPs) are operated at ˜ 45 mK and simultaneously measure the ionization and the (athermal) phonons produced by particle interactions. The ratio of ionization and phonon energies allows discrimination of a low rate of nuclear recoils (expected for WIMPs) from an overwhelming rate of electron recoils (expected for most backgrounds). Phonon-pulse shape and timing enables further suppression of lower-rate interactions at the detector surfaces. This dissertation describes the results of a WIMP search using CDMS II data sets accumulated at the Soudan Underground Laboratory in Minnesota. Results from the original analysis of these data were published in 2009; two events were observed in the signal region with an expected leakage of 0.9 events. Further investigation revealed an issue with the ionization-pulse reconstruction algorithm leading to a software upgrade and a subsequent reanalysis of the data. As part of the reanalysis, I performed an advanced discrimination technique to better distinguish (potential) signal events from backgrounds using a 5-dimensional chi-square method. This data-analysis technique combines the event information recorded for each WIMP-search event to derive a background-discrimination parameter capable of reducing the expected background to less than one event, while maintaining high efficiency for signal events. Furthermore, optimizing the cut positions of this 5-dimensional chi-square parameter for the 14 viable germanium detectors yields an improved expected sensitivity to WIMP interactions relative to previous CDMS results. This dissertation describes my improved (and optimized) discrimination technique and the results obtained from a blind application to the reanalyzed CDMS II WIMP-search data. This analysis achieved the best expected sensitivity of the three techniques developed for the reanalysis and so was chosen as the primary timing analysis whose limit will be quoted in a on-going publication paper which is currently in preparation. For this analysis, a total raw exposure of 612.17 kg-days are analyzed for this work. No candidate events was observed, and a corresponding upper limit on the WIMP-nucleon scattering cross section as a function of WIMP mass is defined. These data set a 90% upper limit on spin-independent WIMP-nucleon elastic-scattering cross section of 3.19 × 10-44 cm2 for a WIMP mass of 60 GeV c 2. Combining this result with all previous CDMS II data gives an upper limit of 1.96 ×10-44 cm2 for a WIMP of mass 60 GeV/c2 (a factor of 2 better than the original analysis). At the moment this analysis is being written, the WIMP-search results ob

  16. Tuneable Diode Laser for measuring CO2 and CO air concentration on New Zealand volcanoes: An emerging technique

    NASA Astrophysics Data System (ADS)

    Mazot, A.; Christenson, B. W.

    2012-12-01

    A new technique, called Open-Path laser, has been used for monitoring of CO2 degassing in volcanic areas in New Zealand. The purpose of these surveys is to have a better knowledge in the spatial and temporal dynamics of CO2 degassing in the atmosphere. CO2 is less reactive than other volcanic gases. CO is present in lesser amounts in volcanic gases but the CO/CO2 ratio is a good indicator of the redox conditions at depth because a change in the ratio can be related to a new input of magma in the volcanic system. This presentation introduces the new laser based technique for future volcanic gas surveillance at Ruapehu volcano, New Zealand. Frequent mild to moderate explosive eruptions have occurred in historical time from the crater lake of Ruapehu with the last hydrothermal eruption occurring in September 2007. The pH of the lake is around 1.1 with lake temperatures ranging from 10 to 60 oC. CO2 emission measurements have been made since 2003 from an airborne platform at a constant distance from the summit and the data were processed using the plume contouring method. The total CO2 emission rate varies from not detectable to 2200 t/day. We here show new results from a measurement campaign conduced 23 May, 2012 over the Ruapehu Crater lake and show how paths are reduced to CO2 values. The values are then compared to long term measurements obtained on the airborne platform. This technique has been also used on another New Zealand volcano, Tongariro which showed volcano seismic unrest beginning in mid-July 2012. The last eruption at the Tongariro volcano was from Te Maari craters in 1897 with reported ash fall as far as Napier 115 km away from the volcano. In response to this activity, we conducted a range of geochemical sampling including, spring sampling and soil gas measurements. In addition, we tested the Tuneable Diode Laser to measure CO2 air concentration. The new method may prove useful for geochemical gas surveillance in combination with the geodetic and seismological volcano monitoring techniques.

  17. Development of mass spectrometric techniques applicable to the search for organic matter in the lunar crust

    NASA Technical Reports Server (NTRS)

    Biemann, K.

    1973-01-01

    Data processing techniques were developed to measure with high precision and sensitivity the line spectra produced by a high resolution mass spectrometer. The most important aspect of this phase was the interfacing of a modified precision microphotometer-comparator with a computer and the improvement of existing software to serve the special needs of the investigation of lunar samples. In addition, a gas-chromatograph mass spectrometer system was interfaced with the same computer to allow continuous recording of mass spectra on a gas chromatographic effluent and efficient evaluation of the resulting data. These techniques were then used to detect and identify organic compounds present in the samples returned by the Apollo 11 and 12 missions.

  18. Similarity Searching Techniques in Content-Based Audio Retrieval Via Hashing

    Microsoft Academic Search

    Yi Yu; Masami Takata; Kazuki Joe

    2007-01-01

    With this work we study suitable indexing techniques to support efficient content-based music retrieval in large acoustic\\u000a databases. To obtain the index-based retrieval mechanism applicable to audio content, we pay the most attention to the design\\u000a of Locality Sensitive Hashing (LSH) and the partial sequence comparison, and propose a fast and efficient audio retrieval\\u000a framework of query-by-content. On the basis

  19. Information retrieval techniques: The differences in cognitive strategies and search behaviors among graduate students in an academic library

    Microsoft Academic Search

    Charlotte Ellen Simon

    1995-01-01

    Descriptive study questioned why some graduate students appear to have few problems with literature searching, while others find the task difficult and are dissatisfied with their search experiences and the results. By using presearch, search, and postsearch questionnaires, the researcher examined various literature search strategies and behaviors of a cross section of 112 adult learners in graduate school who were

  20. Exploring Halo Substructure with Giant Stars: I. Survey Description and Calibration of the Photometric Search Technique

    E-print Network

    Steven R. Majewski; James C. Ostheimer; William E. Kunkel; Richard J. Patterson

    2000-06-28

    We have begun a survey of the structure of the Milky Way halo, as well as the halos of other Local Group galaxies, as traced by their constituent giant stars. These giant stars are identified via large area, CCD photometric campaigns. Here we present the basis for our photometric search method, which relies on the gravity sensitivity of the Mg I triplet + MgH features near 5150 Angstroms in F-K stars, and which is sensed by the flux in the intermediate band DDO51 filter. To calibrate our (M-T_2, M-DDO51) diagram as a means to discriminate field giant stars from nearby dwarfs, we utilize new photometry of the main sequences of the open clusters NGC 3680 and NGC 2477 and the red giant branches of the clusters NGC 3680, Melotte 66 and omega Centauri, supplemented with data on field stars, globular clusters and open clusters by Doug Geisler and collaborators. By combining the data on stars from different clusters, and by taking advantage of the wide abundance spread within omega Centauri, we verify the primary dependence of the M-DDO51 color on luminosity, and demonstrate the secondary sensitivity to metallicity among giant stars. Our empirical results are found to be generally consistent with those from analysis of synthetic spectra by Paltoglou & Bell [1994, MNRAS, 268, 793].

  1. SP-100 shield design automation process using expert system and heuristic search techniques

    SciTech Connect

    Marcille, T.F.; Protsik, R.; Deane, N.A.; Hoover, D.G. (General Electric Company, Astro Space Division, P.O. Box 530954 M/C S15, San Jose, California 95153-5354 (United States))

    1993-01-15

    The SP-100 shield subsystem design process has been modified to utilize the GE Corporate Reserch and Development program, ENGINEOUS (Tong 1990). ENGINEOUS is a software system that automates the use of Computer Aided Engineering (CAE) analysis programs in the engineering design process. The shield subsystem design process incorporates a nuclear subsystems design and performance code, a two-dimensional neutral particle transport code, several input processors and two general purpose neutronic output processors. Coupling these programs within ENGINEOUS provides automatic transition paths between applications, with no source code modifications. ENGINEOUS captures human design knowledge, as well as information about the specific CAE applications and stores this information in knowledge base files. The knowledge base information is used by the ENGINEOUS expert system to drive knowledge directed and knowledge supplemented search modules to find an optimum shield design for a given reactor definition, ensuring that specified constraints are satisfied. Alternate designs, not accommodated in the optimization design rules, can readily be explored through the use of a parametric study capability.

  2. Emergency surgery for Meckel's diverticulum

    PubMed Central

    Sharma, Raj Kumar; Jain, Vir Kumar

    2008-01-01

    The current work attempts to highlight the various life threatening complications of Meckel's diverticulum and to present the surgical strategies used in the emergency conditions so far in the form of a review of the works presented in the literature. Our aim behind this presentation is to cover the possible indications, methods, their complications and the outcome of these surgical techniques. For this, we made an extensive literature search using Google and Pubmed with the words-"Meckel's diverticulum", "Complications", "Management" and "Emergency surgery". All the relevant articles containing the surgical aspects of symptomatic Meckel's diverticulum till May 2008 were collected and analyzed. Meckel's diverticulum is the remains of the prenatal yolkstalk (Vitellointestinal duct). Although it generally remains silent but life threatening complications may arise making it an important structure for having a detailed knowledge of its anatomical and pathophysiological properties to deal with such complications. PMID:18700974

  3. Cation exchange on the nanoscale: an emerging technique for new material synthesis, device fabrication, and chemical sensing.

    PubMed

    Rivest, Jessy B; Jain, Prashant K

    2013-01-01

    Cation exchange is an age-old technique for the chemical conversion of liquids or extended solids by place-exchanging the cations in an ionic material with a different set of cations. The technique is undergoing a major revival with the advent of high-quality nanocrystals: researchers are now able to overcome the limitations in bulk systems and fully exploit cation exchange for materials synthesis and discovery via rapid, low-temperature transformations in the solid state. In this tutorial review, we discuss cation exchange as a promising materials synthesis and discovery tool. Exchange on the nanoscale exhibits some unique attributes: rapid kinetics at room temperature (orders of magnitude faster than in the bulk) and the tuning of reactivity via control of nanocrystal size, shape, and surface faceting. These features make cation exchange a convenient tool for accessing nanocrystal compositions and morphologies for which conventional synthesis may not be established. A simple exchange reaction allows extension of nanochemistry to a larger part of the periodic table, beyond the typical gamut of II-VI, IV-VI, and III-V materials. Cation exchange transformations in nanocrystals can be topotactic and size- and shape-conserving, allowing nanocrystals synthesized by conventional methods to be used as templates for production of compositionally novel, multicomponent, or doped nanocrystals. Since phases and compositions resulting from an exchange reaction can be kinetically controlled, rather than governed by the phase diagram, nanocrystals of metastable and hitherto inaccessible compositions are attainable. Outside of materials synthesis, applications for cation exchange exist in water purification, chemical staining, and sensing. Since nanoscale cation exchange occurs rapidly at room temperature, it can be integrated with sensitive environments such as those in biological systems. Cation exchange is already allowing access to a variety of new materials and processes. With better mechanistic understanding and control, researchers may be able to advance the field to a stage where a custom nanostructure of arbitrary complexity would be achievable by simple cation exchange chemistry and a basic understanding of the periodic table. PMID:22968228

  4. in vivo quantification of white matter microstructure for use in aging: A focus on two emerging techniques

    PubMed Central

    Lamar, Melissa; Zhou, Xiaohong Joe; Charlton, Rebecca A.; Dean, Douglas; Little, Deborah; Deoni, Sean C

    2013-01-01

    Human brain imaging has seen many advances in the quantification of white matter in vivo. For example, these advances have revealed the association between white matter damage and vascular disease as well as their impact on risk for and development of dementia and depression in an aging population. Current neuroimaging methods to quantify white matter damage provide a foundation for understanding such age-related neuropathology; however, these methods are not as adept at determining the underlying microstructural abnormalities signaling at risk tissue or driving white matter damage in the aging brain. This review will begin with a brief overview of the use of diffusion tensor imaging (DTI) in understanding white matter alterations in aging before focusing in more detail on select advances in both diffusion-based methods and multi-component relaxometry techniques for imaging white matter microstructural integrity within myelin sheaths and the axons they encase. While DTI greatly extended the field of white matter interrogation, these more recent technological advances will add clarity to the underlying microstructural mechanisms that contribute to white matter damage. More specifically, the methods highlighted in this review may prove more sensitive (and specific) for determining the contribution of myelin versus axonal integrity to the aging of white matter in brain. PMID:24080382

  5. Search for ?-decay of high-spin isomers in rare-earth nuclei using a decay-in-flight technique

    SciTech Connect

    Vrba, Joseph A.

    1980-03-01

    An experimental search has been conducted for ?-decay in the lifetime range of from 1 to 100 nsec in a variety of rare earth nuclei produced in reactions of 125 to 146 MeV /sup 16/O ions on targets of /sup 139/La, /sup 141/Pr, and /sup 142/Nd. The products of these reactions include systems in which high spin (I > 10 h-bar) isomeric states have been observed with lifetimes in the range studied. Certain of these isomers may be very high spin statistical yrast traps which have been predicted to occur at spins of from 30 to 50 h-bar in the rare earths. For such spins and lifetimes, calculations suggest that ?-decay could be a major mode of de-excitation. The technique employed for these experimental investigations made use of a specially designed trajectory detector to observe ?-decay directly from the reaction products which recoiled from a thin target. Analytical procedures developed for reduction of the decay-in-flight data are discussed which yielded information about the particle types detected, the energies of these particles, the trajectories followed, and the positions of parent nuclei at the time the detected particles were emitted. Kinematic and solid angle corrections are considered which permitted correction for Doppler broadening effects and allowed estimates to be made with regard to the lifetime and production cross section of the parent state. The experimental method and the associated analytical procedures were verified by study of ?-decay following the reaction /sup 208/Pb(/sup 16/O,p6n)/sup 217/Ac. No system studied in the search for yrast trap ?-decay showed activity significantly above background in the 6 to 16 MeV energy range.

  6. Protecting Your Right: Attribute-based Keyword Search with Fine-grained Owner-enforced Search

    E-print Network

    Hou, Y. Thomas

    , USA Abstract--Search over encrypted data is a critically important enabling technique in cloud shows the efficiency of our scheme. I. INTRODUCTION Cloud computing has emerged as a new enterprise un- paralleled advantages brought by cloud computing, such as on-demand computing resource

  7. Application of hyperspectral techniques to multispectral data: spectral mixture analysis (SMA) in mapping of emergent macrophytes in a water-hyacinth-infested area

    NASA Astrophysics Data System (ADS)

    Idawo, Cuthbert; Jajah, Munzer; Laneve, Giovanni

    2004-02-01

    Water hyacinth (Eicchornia crassipes (Mart.) Solms) is an invasive aquatic macrophyte that has infested the lake Victoria, East Africa, since the late 1980s. It has been associated with major negative economic and ecological impact of this important water resource in East Africa. Remote sensing technology has significant potential in mapping this fast growing floating weed, in a mostly inaccessible area for field measurements. Our study site is the Winam Gulf, on the Kenyan part of the Lake, which has had the highest reported infestation in recent years. The paper describes a study to evaluate the ability of ETM+ multispectral imagery in mapping water hyacinth and associated macrophytes in the hyacinth infested Winam Gulf. By applying hyperspectral techniques on multispectral data, a spectral mixture analysis was undertaken using image-derived endmembers. The study was also an evaluation of an alternative way of acquiring emergent macrophytic endmembers in cases where limitations like lack of hyperspectral data, spectrometric measurements and spectral libraries exist. The results demonstrate that whereas it is possible to discriminate and map the different spectral constituents, a spectral library of the endmembers under investigation would be required for positive identification, especially for macrophytes that are closely related spectrally, fast growing, have varying concentrations (density) spatially, and are non-static in nature.

  8. Search 3.0: Present, Personal, Precise

    NASA Astrophysics Data System (ADS)

    Spivack, Nova

    The next generation of Web search is already beginning to emerge. With it we will see several shifts in the way people search, and the way major search engines provide search functionality to consumers.

  9. Improving 3d Spatial Queries Search: Newfangled Technique of Space Filling Curves in 3d City Modeling

    NASA Astrophysics Data System (ADS)

    Uznir, U.; Anton, F.; Suhaibah, A.; Rahman, A. A.; Mioc, D.

    2013-09-01

    The advantages of three dimensional (3D) city models can be seen in various applications including photogrammetry, urban and regional planning, computer games, etc.. They expand the visualization and analysis capabilities of Geographic Information Systems on cities, and they can be developed using web standards. However, these 3D city models consume much more storage compared to two dimensional (2D) spatial data. They involve extra geometrical and topological information together with semantic data. Without a proper spatial data clustering method and its corresponding spatial data access method, retrieving portions of and especially searching these 3D city models, will not be done optimally. Even though current developments are based on an open data model allotted by the Open Geospatial Consortium (OGC) called CityGML, its XML-based structure makes it challenging to cluster the 3D urban objects. In this research, we propose an opponent data constellation technique of space-filling curves (3D Hilbert curves) for 3D city model data representation. Unlike previous methods, that try to project 3D or n-dimensional data down to 2D or 3D using Principal Component Analysis (PCA) or Hilbert mappings, in this research, we extend the Hilbert space-filling curve to one higher dimension for 3D city model data implementations. The query performance was tested using a CityGML dataset of 1,000 building blocks and the results are presented in this paper. The advantages of implementing space-filling curves in 3D city modeling will improve data retrieval time by means of optimized 3D adjacency, nearest neighbor information and 3D indexing. The Hilbert mapping, which maps a subinterval of the [0, 1] interval to the corresponding portion of the d-dimensional Hilbert's curve, preserves the Lebesgue measure and is Lipschitz continuous. Depending on the applications, several alternatives are possible in order to cluster spatial data together in the third dimension compared to its clustering in 2D.

  10. Creating collaboration opportunities for marine research across the Arctic: The SEARCH-ACCESS partnership and an emerging sea ice prediction research network

    NASA Astrophysics Data System (ADS)

    Eicken, H.; Bitz, C. M.; Gascard, J.; Kaminski, T.; Karcher, M. J.; Kauker, F.; Overland, J. E.; Stroeve, J. C.; Wiggins, H. V.

    2013-12-01

    Rapid Arctic environmental and socio-economic change presents major challenges and opportunities to Arctic residents, government agencies and the private sector. The Arctic Ocean and its ice cover, in particular, are in the midst of transformative change, ranging from declines in sea-ice thickness and summer ice extent to threats to coastal communities and increases in maritime traffic and offshore resource development. The US interagency Study of Environmental Arctic Change (SEARCH) and the European Arctic Climate Change, Economy and Society (ACCESS) project are addressing both scientific research needs and stakeholder information priorities to improve understanding and responses to Arctic change. Capacity building, coordination and integration of activities at the international level and across sectors and stakeholder groups are major challenges that have to be met. ACCESS and SEARCH build on long-standing collaborations with a focus on environmental change in the Arctic ocean-ice-atmosphere system and the most pressing research needs to inform marine policy, resource management and threats to Arctic coastal communities. To illustrate the approach, key results and major conclusions from this international coordination and collaboration effort, we focus on a nascent sea-ice prediction research network. This activity builds on the Arctic Sea Ice Outlook that was initiated by SEARCH and the European DAMOCLES project (a precursor to ACCESS) and has now grown into an international community of practice that synthesizes, evaluates and discusses sea-ice predictions on seasonal to interannual scales. Key goals of the effort which is now entering into a new phase include the comparative evaluation of different prediction approaches, including the combination of different techniques, the compilation of reference datasets and model output, guidance on the design and implementation of observing system efforts to improve predictions and information transfer into private industry and the broader public. The latter relies on informal focus groups convened by ACCESS that help identify stakeholder priorities and provide feedback on science and policy documents resulting from this work. Most important, the research network effort explores the nature and ramifications of sea ice in an ice-diminished Arctic.

  11. Evaluating Different Genetic Operators in the Testing for Unwanted Emergent Behavior using Evolutionary Learning of Behavior

    E-print Network

    Denzinger, Jörg

    Evolutionary Learning of Behavior J¨org Denzinger, Jordan Kidney Department of Computer Science University for unwanted emergent behavior in a multi-agent system. The idea of the learning method is to evolve behavior that fights "fire with fire" by using techniques from learning of cooperative behavior to search

  12. Simultaneous Recordings of Human Microsaccades and Drifts with a Contemporary Video Eye Tracker and the Search Coil Technique

    PubMed Central

    McCamy, Michael B.; Otero-Millan, Jorge; Leigh, R. John; King, Susan A.; Schneider, Rosalyn M.; Macknik, Stephen L.; Martinez-Conde, Susana

    2015-01-01

    Human eyes move continuously, even during visual fixation. These “fixational eye movements” (FEMs) include microsaccades, intersaccadic drift and oculomotor tremor. Research in human FEMs has grown considerably in the last decade, facilitated by the manufacture of noninvasive, high-resolution/speed video-oculography eye trackers. Due to the small magnitude of FEMs, obtaining reliable data can be challenging, however, and depends critically on the sensitivity and precision of the eye tracking system. Yet, no study has conducted an in-depth comparison of human FEM recordings obtained with the search coil (considered the gold standard for measuring microsaccades and drift) and with contemporary, state-of-the art video trackers. Here we measured human microsaccades and drift simultaneously with the search coil and a popular state-of-the-art video tracker. We found that 95% of microsaccades detected with the search coil were also detected with the video tracker, and 95% of microsaccades detected with video tracking were also detected with the search coil, indicating substantial agreement between the two systems. Peak/mean velocities and main sequence slopes of microsaccades detected with video tracking were significantly higher than those of the same microsaccades detected with the search coil, however. Ocular drift was significantly correlated between the two systems, but drift speeds were higher with video tracking than with the search coil. Overall, our combined results suggest that contemporary video tracking now approaches the search coil for measuring FEMs. PMID:26035820

  13. Engineering emergence

    Microsoft Academic Search

    Susan Stepney; Fiona A. C. Polack; Heather R. Turner

    2006-01-01

    We explore various definitions and characteristics of emergence, how we might recognise and measure emergence, and how we might engineer emergent systems. We discuss the TUNA (Theory Underpinning Nanotech Assemblers) project, which is investigating emergent engineering in the context of molecular nanotechnology, and use the TUNA case study to explore an architecture suitable for emergent complex systems

  14. Building Emergency Plan

    E-print Network

    Physical Facilities

    2013-11-12

    Aug 30, 2013 ... Agency controls activation of the siren system. (Purdue .... holding the person close before lifting, and using leg muscles to lift) should be used to ... emergency evacuation information regarding lifting techniques from the Office.

  15. Tracking the eye non-invasively: simultaneous comparison of the scleral search coil and optical tracking techniques in the macaque monkey

    PubMed Central

    Kimmel, Daniel L.; Mammo, Dagem; Newsome, William T.

    2012-01-01

    From human perception to primate neurophysiology, monitoring eye position is critical to the study of vision, attention, oculomotor control, and behavior. Two principal techniques for the precise measurement of eye position—the long-standing sclera-embedded search coil and more recent optical tracking techniques—are in use in various laboratories, but no published study compares the performance of the two methods simultaneously in the same primates. Here we compare two popular systems—a sclera-embedded search coil from C-N-C Engineering and the EyeLink 1000 optical system from SR Research—by recording simultaneously from the same eye in the macaque monkey while the animal performed a simple oculomotor task. We found broad agreement between the two systems, particularly in positional accuracy during fixation, measurement of saccade amplitude, detection of fixational saccades, and sensitivity to subtle changes in eye position from trial to trial. Nonetheless, certain discrepancies persist, particularly elevated saccade peak velocities, post-saccadic ringing, influence of luminance change on reported position, and greater sample-to-sample variation in the optical system. Our study shows that optical performance now rivals that of the search coil, rendering optical systems appropriate for many if not most applications. This finding is consequential, especially for animal subjects, because the optical systems do not require invasive surgery for implantation and repair of search coils around the eye. Our data also allow laboratories using the optical system in human subjects to assess the strengths and limitations of the technique for their own applications. PMID:22912608

  16. Emergency Contraception

    MedlinePLUS

    ... contraception are available: emergency contraceptive pills and the copper-containing intrauterine device (IUD). Emergency contraceptive pills include ... for emergency use, talk to your doctor. The copper-containing IUD (brand name: Paragard) is a small, ...

  17. Emergency Contraception

    MedlinePLUS

    ... have used emergency contraception pills? • How is the copper intrauterine device (IUD) used as emergency contraception? • Glossary ... your next menstrual period starts. How is the copper intrauterine device (IUD) used as emergency contraception? The ...

  18. Virage Image Search Engine: An Open Framework for Image Management

    Microsoft Academic Search

    Jeffrey R. Bach; Charles Fuller; Amarnath Gupta; Arun Hampapur; Bradley Horowitz; Rich Humphrey; Ramesh Jain; Chiao-Fe Shu

    1996-01-01

    Until recently, the management of large image databases has relied exclusively on manually entered alphanumeric annotations. Systems are beginning to emerge in both the research and commercial sectors based on 'content-based' image retrieval, a technique which explicitly manages image assets by directly representing their visual attributes. The Virage image search engine provides an open framework for building such systems. The

  19. Emergency contraception - potential for women's health.

    PubMed

    Mittal, Suneeta

    2014-11-01

    Emergency contraception (EC) is a safe and effective method which is used to prevent unwanted pregnancy after unprotected sexual intercourse. Many of the unwanted pregnancies end in unsafe abortions. The search for an ideal contraceptive, which does not interfere with spontaneity or pleasure of the sexual act, yet effectively controls the fertility, is still continuing. Numerous contraceptive techniques are available, yet contraceptive coverage continues to be poor in India. Thus, even when not planning for a pregnancy, exposure to unprotected sex takes place often, necessitating the use of emergency contraception. This need may also arise due to failure of contraceptive method being used (condom rupture, diaphragm slippage, forgotten oral pills) or following sexual assault. Emergency contraception is an intervention that can prevent a large number of unwanted pregnancies resulting from failure of regular contraception or unplanned sexual activity, which in turn helps in reducing the maternal mortality and morbidity due to unsafe abortions. However, a concern has been expressed regarding repeated and indiscriminate usage of e-pill, currently the rational use of emergency contraception is being promoted as it is expected to make a significant dent in reducing the number of unwanted pregnancies and unsafe abortions. In fact, since the introduction of emergency contraception, the contribution of unsafe abortion towards maternal mortality has declined from 13 to 8 per cent. PMID:25673542

  20. Emergency contraception - Potential for women's health

    PubMed Central

    Mittal, Suneeta

    2014-01-01

    Emergency contraception (EC) is a safe and effective method which is used to prevent unwanted pregnancy after unprotected sexual intercourse. Many of the unwanted pregnancies end in unsafe abortions. The search for an ideal contraceptive, which does not interfere with spontaneity or pleasure of the sexual act, yet effectively controls the fertility, is still continuing. Numerous contraceptive techniques are available, yet contraceptive coverage continues to be poor in India. Thus, even when not planning for a pregnancy, exposure to unprotected sex takes place often, necessitating the use of emergency contraception. This need may also arise due to failure of contraceptive method being used (condom rupture, diaphragm slippage, forgotten oral pills) or following sexual assault. Emergency contraception is an intervention that can prevent a large number of unwanted pregnancies resulting from failure of regular contraception or unplanned sexual activity, which in turn helps in reducing the maternal mortality and morbidity due to unsafe abortions. However, a concern has been expressed regarding repeated and indiscriminate usage of e-pill, currently the rational use of emergency contraception is being promoted as it is expected to make a significant dent in reducing the number of unwanted pregnancies and unsafe abortions. In fact, since the introduction of emergency contraception, the contribution of unsafe abortion towards maternal mortality has declined from 13 to 8 per cent. PMID:25673542

  1. Emergency Contraception

    MedlinePLUS

    ... Guy's Guide to Body Image Emergency Contraception KidsHealth > Teens > Sexual Health > Birth Control > Emergency Contraception Print A A A ... using emergency contraception. It is also available to teens who are forced to have unprotected sex. Emergency contraception is not recommended for girls who ...

  2. Emergency nursing

    Microsoft Academic Search

    John A Schriver; Robin Talmadge; Roberta Chuong; Jerris R Hedges

    2003-01-01

    Building upon a historical context, the current and future roles of the clinical emergency nurse are reviewed. For several reasons, emergency nurse availability is expected to be insufficient to meet staffing demands in the near future. Emergency physicians can partner with emergency nurses and hospital administrators to pursue the following strategies for addressing the nursing shortage: (1) improve the workplace

  3. Reactive Local Search Techniques for the Maximum k-conjunctive Constraint Satisfaction Problem (MAX-k-CCSP)

    Microsoft Academic Search

    Roberto Battiti; Marco Protasi

    1999-01-01

    this paper the performance of the Hamming-based Reactive TabuSearch algorithm (H-RTS) previously proposed for the Maximum Satisfiabilityproblem is studied for the different Maximum k--Conjunctive ConstraintSatisfaction problem. In addition, the use of non-oblivious functionsrecently proposed in the framework of approximation algorithms isinvestigated

  4. Emergent behaviors of classifier systems

    SciTech Connect

    Forrest, S.; Miller, J.H.

    1989-01-01

    This paper discusses some examples of emergent behavior in classifier systems, describes some recently developed methods for studying them based on dynamical systems theory, and presents some initial results produced by the methodology. The goal of this work is to find techniques for noticing when interesting emergent behaviors of classifier systems emerge, to study how such behaviors might emerge over time, and make suggestions for designing classifier systems that exhibit preferred behaviors. 20 refs., 1 fig.

  5. Diabetic Emergencies

    MedlinePLUS

    Diabetic Emergencies It is estimated that more than 20 million people in the United States have diabetes, ... they have it. The best way to prevent diabetic emergencies is to effectively manage the disease through ...

  6. Emergency Checklist

    MedlinePLUS

    ... Prevention Week National Prescription Drug Take-Back Day Emergency Checklist If someone may have been poisoned, call ... may save you from a visit to the emergency room. Below is a checklist to help you ...

  7. Emergent Expertise?

    ERIC Educational Resources Information Center

    McGivern, Patrick

    2014-01-01

    The concept of emergence appears in various places within the literature on expertise and expert practice. Here, I examine some of these applications of emergence in the light of two prominent accounts of emergence from the philosophy of science and philosophy of mind. I evaluate these accounts with respect to several specific contexts in which…

  8. Pattern recognition techniques to reduce backgrounds in the search for the {sup 136}Xe double beta decay with gaseous TPCs

    SciTech Connect

    Iguaz, F. J.; Cebrián, S.; Dafni, T.; Gómez, H.; Herrera, D. C.; Irastorza, I. G.; Luzon, G.; Segui, L.; Tomas, A. [Laboratorio de Física Nuclear y Astropartículas, Universidad de Zaragoza (Spain)] [Laboratorio de Física Nuclear y Astropartículas, Universidad de Zaragoza (Spain)

    2013-08-08

    The observation of the neutrinoless double beta decay may provide essential information on the nature of neutrinos. Among the current experimental approaches, a high pressure gaseous TPC is an attractive option for the search of double beta decay due to its good energy resolution and the detailed topological information of each event. We present in this talk a detailed study of the ionization topology of the {sup 136}Xe double beta decay events in a High Pressure Xenon TPC, as well as that of the typical competing backgrounds. We define some observables based on graph theory concepts to develop automated discrimination algorithms. Our criteria are able to reduce the background level by about three orders of magnitude in the region of interest of the {sup 136}Xe Q{sub ??} for a signal acceptance of 40%. This result provides a quantitative assessment of the benefit of topological information offered by gaseous TPCs for double beta decay search, and proves that it is a promising feature in view of future experiments in the field. Possible ideas for further improvement in the discrimination algorithms and the dependency of these results with the gas diffusion and readout granularity will be also discussed.

  9. A preliminary study of head-up display assessment techniques. 2: HUD symbology and panel information search time

    NASA Technical Reports Server (NTRS)

    Guercio, J. G.; Haines, R. F.

    1978-01-01

    Twelve commercial pilots were shown 50 high-fidelity slides of a standard aircraft instrument panel with the airspeed, altitude, ADI, VSI, and RMI needles in various realistic orientations. Fifty slides showing an integrated head-up display (HUD) symbology containing an equivalent number of flight parameters as above (with flight path replacing VSI) were also shown. Each subject was told what flight parameter to search for just before each slide was exposed and was given as long as needed (12 sec maximum) to respond by verbalizing the parameter's displayed value. The results for the 100-percent correct data indicated that: there was no significant difference in mean reaction time (averaged across all five flight parameters) between the instrument panel and HUD slides; and a statistically significant difference in mean reaction time was found in responding to different flight parameters.

  10. Pediatric emergency medical services and their drawbacks

    PubMed Central

    Al-Anazi, Abdullah Foraih

    2012-01-01

    Aim: To survey the literature on Pediatric Emergency Medical Services (PEMS) with an aim to focus its drawbacks and emphasize the means of improvement. Materials and Methods: Published articles selected for inclusion were based on the significance and understanding of literature search on different aspects of PEMS. To meet this criterion, PubMed, PubMed Central, Science Direct, Uptodate, Med Line, comprehensive databases, Cochrane library and the Internet (Google, Yahoo) were thoroughly searched. Results: PEMS provide out-of-hospital medical care and/or transport the patients to definitive care. The task force represents specialties of ambulance transport, first aid, emergency medical care, life saving, trauma, emergency medicine, water rescue, and extrication. Preliminary care is undertaken to save the patients from different medical exigencies. The techniques and procedures of basic and advanced life-support are employed. A large number of weaknesses are recorded in PEMS system, such as ambulance transport irregularities, deficit equipment, lack of expertise, and ignorance of the pre-hospital care providers. These are discussed with special reference to a few examples of medical exigencies. Conclusions: The appointments in PEMS should be regularized with specific qualifications, experience, and expertise in different areas. Responsibility of PEMS should not be left to pre-hospital care providers, who are non clinicians and lack proper education and training. Pediatricians should be adequately trained to play an active role in PEMS. Meetings should be convened to discuss the lapses and means of improvement. Networks of co-operation between pre-hospital providers and experts in the emergency department should be established. PMID:22988399

  11. Inflight medical emergencies.

    PubMed

    Lyznicki, J M; Williams, M A; Deitchman, S D; Howe, J P

    2000-08-01

    This report responds to resolutions asking the American Medical Association (AMA) to develop recommendations for the use of medical equipment and technology onboard commercial airlines. Information for the report was derived from a search of the MEDLINE database and references listed in pertinent articles, as well as through communications with experts in aerospace and emergency medicine. Based on this information, the AMA Council on Scientific Affairs determined that, while inflight morbidity and mortality are uncommon, serious events do occur, which require immediate emergency care. Management of serious problems requires an integrated emergency response system that ensures rapid notification of medical personnel on the ground, assistance from appropriately trained flight crews and passenger volunteers (if available), and adequate medical supplies and equipment to stabilize the victim. Physicians have an important role in the preflight evaluation and counseling of potential passengers who are at risk of inflight medical complications, and in providing inflight medical assistance. Some U.S. and foreign air carriers are upgrading inflight emergency medical kits and placing automated external defibrillators aboard aircraft. Few data are available regarding the effectiveness of such improvements in improving health or survival outcomes. Recent federal legislation requires assessment of the extent of inflight medical emergencies, including the adequacy of emergency medical supplies and equipment carried onboard commercial airliners. This legislation also should alleviate liability concerns by providing immunity for physicians and others who render inflight medical assistance. PMID:10954361

  12. The kinetic activation-relaxation technique: an off-lattice, self-learning kinetic Monte Carlo algorithm with on-the-fly event search

    NASA Astrophysics Data System (ADS)

    Mousseau, Nomand

    2012-02-01

    While kinetic Monte Carlo algorithm has been proposed almost 40 years ago, its application in materials science has been mostly limited to lattice-based motion due to the difficulties associated with identifying new events and building usable catalogs when atoms moved into off-lattice position. Here, I present the kinetic activation-relaxation technique (kinetic ART) is an off-lattice, self-learning kinetic Monte Carlo algorithm with on-the-fly event search [1]. It combines ART nouveau [2], a very efficient unbiased open-ended activated method for finding transition states, with a topological classification [3] that allows a discrete cataloguing of local environments in complex systems, including disordered materials. In kinetic ART, local topologies are first identified for all atoms in a system. ART nouveau event searches are then launched for new topologies, building an extensive catalog of barriers and events. Next, all low energy events are fully reconstructed and relaxed, allowing to take complete account of elastic effects in the system's kinetics. Using standard kinetic Monte Carlo, the clock is brought forward and an event is then selected and applied before a new search for topologies is launched. In addition to presenting the various elements of the algorithm, I will discuss three recent applications to ion-bombarded silicon, defect diffusion in Fe and structural relaxation in amorphous silicon.[4pt] This work was done in collaboration with Laurent Karim B'eland, Peter Brommer, Fedwa El-Mellouhi, Jean-Francois Joly and Laurent Lewis.[4pt] [1] F. El-Mellouhi, N. Mousseau and L.J. Lewis, Phys. Rev. B. 78, 153202 (2008); L.K. B'eland et al., Phys. Rev. E 84, 046704 (2011).[2] G.T. Barkema and N. Mousseau, Phys. Rev. Lett. 77, 4358 (1996); E. Machado-Charry et al., J. Chem Phys. 135, 034102, (2011).[3] B.D. McKay, Congressus Numerantium 30, 45 (1981).

  13. The design of a peptide sequence to inhibit HIV replication: a search algorithm combining Monte Carlo and self-consistent mean field techniques.

    PubMed

    Xiao, Xingqing; Hall, Carol K; Agris, Paul F

    2014-01-01

    We developed a search algorithm combining Monte Carlo (MC) and self-consistent mean field techniques to evolve a peptide sequence that has good binding capability to the anticodon stem and loop (ASL) of human lysine tRNA species, tRNA(Lys3), with the ultimate purpose of breaking the replication cycle of human immunodeficiency virus-1. The starting point is the 15-amino-acid sequence, RVTHHAFLGAHRTVG, found experimentally by Agris and co-workers to bind selectively to hypermodified tRNA(Lys3). The peptide backbone conformation is determined via atomistic simulation of the peptide-ASL(Lys3) complex and then held fixed throughout the search. The proportion of amino acids of various types (hydrophobic, polar, charged, etc.) is varied to mimic different peptide hydration properties. Three different sets of hydration properties were examined in the search algorithm to see how this affects evolution to the best-binding peptide sequences. Certain amino acids are commonly found at fixed sites for all three hydration states, some necessary for binding affinity and some necessary for binding specificity. Analysis of the binding structure and the various contributions to the binding energy shows that: 1) two hydrophilic residues (asparagine at site 11 and the cysteine at site 12) "recognize" the ASL(Lys3) due to the VDW energy, and thereby contribute to its binding specificity and 2) the positively charged arginines at sites 4 and 13 preferentially attract the negatively charged sugar rings and the phosphate linkages, and thereby contribute to the binding affinity. PMID:24147736

  14. Hacking Techniques

    Microsoft Academic Search

    Richard Barber

    2001-01-01

    With tales of hacked networks and websites being reported by the media daily, people assume that hacking must be easy. But, in truth, the tools and techniques employed by hackers are extremely complex, utilizing a broad range of technologies. The number of mechanisms for breaking into systems, whatever the objective, is on the increase with new tools emerging continuously. This

  15. Emergency contraception.

    PubMed

    2012-12-01

    Despite significant declines over the past 2 decades, the United States continues to have teen birth rates that are significantly higher than other industrialized nations. Use of emergency contraception can reduce the risk of pregnancy if used up to 120 hours after unprotected intercourse or contraceptive failure and is most effective if used in the first 24 hours. Indications for the use of emergency contraception include sexual assault, unprotected intercourse, condom breakage or slippage, and missed or late doses of hormonal contraceptives, including the oral contraceptive pill, contraceptive patch, contraceptive ring (ie, improper placement or loss/expulsion), and injectable contraception. Adolescents younger than 17 years must obtain a prescription from a physician to access emergency contraception in most states. In all states, both males and females 17 years or older can obtain emergency contraception without a prescription. Adolescents are more likely to use emergency contraception if it has been prescribed in advance of need. The aim of this updated policy statement is to (1) educate pediatricians and other physicians on available emergency contraceptive methods; (2) provide current data on safety, efficacy, and use of emergency contraception in teenagers; and (3) encourage routine counseling and advance emergency-contraception prescription as 1 part of a public health strategy to reduce teen pregnancy. This policy focuses on pharmacologic methods of emergency contraception used within 120 hours of unprotected or underprotected coitus for the prevention of unintended pregnancy. Emergency contraceptive medications include products labeled and dedicated for use as emergency contraception by the US Food and Drug Administration (levonorgestrel and ulipristal) and the "off-label" use of combination oral contraceptives. PMID:23184108

  16. Introduction of hi-fidelity simulation techniques as an ideal teaching tool for upcoming emergency medicine and trauma residency programs in India

    PubMed Central

    Gupta, Amit; Peckler, Brad; Schoken, Dawn

    2008-01-01

    Emergency medicine (EM) residency programs are a new concept to India. As these programs develop in India the need for effective teaching tools for skills education will rise. A high fidelity simulation workshop was conducted with a intent to expose current residents posted in emergency departments (EDs) to the concept of simulation technology. The participants were subjected to scenarios which tested their core competencies, medical knowledge, and procedural skills using simulation technology. 50 residents were tested over 5 days and an overall satisfaction score and personal comments were assessed to rate the performance of this study. A pre- and post simulation survey was done. Results showed that participants felt that their understanding of communication of expectations increased from 38% fair or good to 76% very good or best. The frequency in which they thought they would ask for help increased from 36% fair or good to 88% very good or best. It was found that students had increased their confidence to challenge a questionable order from a superior from 48% occasionally or half of the time to 76% who would do it the majority of the time or always. In the post-survey, 80% would the majority of the time or always admit that they did not know something from 46% who stated they would only do it occasionally or half of the time. We concluded that simulation as a tool for teaching unknown and stressful conditions of ED naturally pair. Resident core competencies can be taught and evaluated more effectively in the simulation lab in a controlled, safe, and collegial manner. PMID:19561937

  17. Review article: burnout in emergency medicine physicians.

    PubMed

    Arora, Manit; Asha, Stephen; Chinnappa, Jason; Diwan, Ashish D

    2013-12-01

    Training and the practice of emergency medicine are stressful endeavours, placing emergency medicine physicians at risk of burnout. Burnout syndrome is associated with negative outcomes for patients, institutions and the physician. The aim of this review is to summarise the available literature on burnout among emergency medicine physicians and provide recommendations for future work in this field. A search of MEDLINE (1946-present) (search terms: 'Burnout, Professional' AND 'Emergency Medicine' AND 'Physicians'; 'Stress, Psychological' AND 'Emergency Medicine' AND 'Physicians') and EMBASE (1988-present) (search terms: 'Burnout' AND 'Emergency Medicine' AND 'Physicians'; 'Mental Stress' AND 'Emergency Medicine' AND 'Physicians') was performed. The authors focused on articles that assessed burnout among emergency medicine physicians. Most studies used the Maslach Burnout Inventory to quantify burnout, allowing for cross-study (and cross-country) comparisons. Emergency medicine has burnout levels in excess of 60% compared with physicians in general (38%). Despite this, most emergency medicine physicians (>60%) are satisfied with their jobs. Both work-related (hours of work, years of practice, professional development activities, non-clinical duties etc.) and non-work-related factors (age, sex, lifestyle factors etc.) are associated with burnout. Despite the heavy burnout rates among emergency medicine physicians, little work has been performed in this field. Factors responsible for burnout among various emergency medicine populations should be determined, and appropriate interventions designed to reduce burnout. PMID:24118838

  18. Invited Review Article: Physics and Monte Carlo techniques as relevant to cryogenic, phonon, and ionization readout of Cryogenic Dark Matter Search radiation detectors

    NASA Astrophysics Data System (ADS)

    Leman, Steven W.

    2012-09-01

    This review discusses detector physics and Monte Carlo techniques for cryogenic, radiation detectors that utilize combined phonon and ionization readout. A general review of cryogenic phonon and charge transport is provided along with specific details of the Cryogenic Dark Matter Search detector instrumentation. In particular, this review covers quasidiffusive phonon transport, which includes phonon focusing, anharmonic decay, and isotope scattering. The interaction of phonons in the detector surface is discussed along with the downconversion of phonons in superconducting films. The charge transport physics include a mass tensor which results from the crystal band structure and is modeled with a Herring-Vogt transformation. Charge scattering processes involve the creation of Neganov-Luke phonons. Transition-edge-sensor (TES) simulations include a full electric circuit description and all thermal processes including Joule heating, cooling to the substrate, and thermal diffusion within the TES, the latter of which is necessary to model normal-superconducting phase separation. Relevant numerical constants are provided for these physical processes in germanium, silicon, aluminum, and tungsten. Random number sampling methods including inverse cumulative distribution function (CDF) and rejection techniques are reviewed. To improve the efficiency of charge transport modeling, an additional second order inverse CDF method is developed here along with an efficient barycentric coordinate sampling method of electric fields. Results are provided in a manner that is convenient for use in Monte Carlo and references are provided for validation of these models.

  19. Invited Review Article: Physics and Monte Carlo techniques as relevant to cryogenic, phonon, and ionization readout of Cryogenic Dark Matter Search radiation detectors

    SciTech Connect

    Leman, Steven W. [Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

    2012-09-15

    This review discusses detector physics and Monte Carlo techniques for cryogenic, radiation detectors that utilize combined phonon and ionization readout. A general review of cryogenic phonon and charge transport is provided along with specific details of the Cryogenic Dark Matter Search detector instrumentation. In particular, this review covers quasidiffusive phonon transport, which includes phonon focusing, anharmonic decay, and isotope scattering. The interaction of phonons in the detector surface is discussed along with the downconversion of phonons in superconducting films. The charge transport physics include a mass tensor which results from the crystal band structure and is modeled with a Herring-Vogt transformation. Charge scattering processes involve the creation of Neganov-Luke phonons. Transition-edge-sensor (TES) simulations include a full electric circuit description and all thermal processes including Joule heating, cooling to the substrate, and thermal diffusion within the TES, the latter of which is necessary to model normal-superconducting phase separation. Relevant numerical constants are provided for these physical processes in germanium, silicon, aluminum, and tungsten. Random number sampling methods including inverse cumulative distribution function (CDF) and rejection techniques are reviewed. To improve the efficiency of charge transport modeling, an additional second order inverse CDF method is developed here along with an efficient barycentric coordinate sampling method of electric fields. Results are provided in a manner that is convenient for use in Monte Carlo and references are provided for validation of these models.

  20. Emergency cricothyrotomy – a systematic review

    PubMed Central

    2013-01-01

    Background An emergency cricothyrotomy is the last-resort in most airway management protocols and is performed when it is not possible to intubate or ventilate a patient. This situation can rapidly prove fatal, making it important to identify the best method to establish a secure airway. We conducted a systematic review to identify whether there exists superiority between available commercial kits versus traditional surgical and needle techniques. Methods Medline, EMBASE and other databases were searched for pertinent studies. The inclusion criteria included manikin, animal and human studies and there were no restrictions regarding the professional background of the person performing the procedure. Results In total, 1,405 unique references were identified; 108 full text articles were retrieved; and 24 studies were included in the review. Studies comparing kits with one another or with various surgical and needle techniques were identified. The outcome measures included in this systematic review were success rate and time consumption. The investigators performing the studies had chosen unique combinations of starting and stopping points for time measurements, making comparisons between studies difficult and leading to many conflicting results. No single method was shown to be better than the others, but the size of the studies makes it impossible to draw firm conclusions. Conclusions The large majority of the studies were too small to demonstrate statistically significant differences, and the limited available evidence was of low or very low quality. That none of the techniques in these studies demonstrated better results than the others does not necessarily indicate that each is equally good, and these conclusions will likely change as new evidence becomes available. PMID:23725520

  1. Chemical Emergencies

    MedlinePLUS

    ... the case of a terrorist attack with a chemical weapon. Some hazardous chemicals have been developed by military ... there are no guarantees of safety during a chemical emergency, you can take actions to protect yourself. You ...

  2. Endocrine emergencies

    PubMed Central

    Savage, M; Mah, P; Weetman, A; Newell-Price, J

    2004-01-01

    Diabetic and endocrine emergencies are traditionally treated by the acute medical admitting team or accident and emergency department staff. Most will see diabetic emergencies on a regular basis, as they are common and both type 1 and type 2 disease are increasing in prevalence. Diabetic emergencies are usually easily treated and the patients discharged. However, it is vital not to become complacent as these disorders can lead to death. It is particularly important to follow local guidance and to involve the diabetes team both during and after each episode. Recently it has become clear that about 30% of patients admitted with acute coronary syndrome (including infarction) have either diabetes or "stress hyperglycaemia"; evidence suggests that these patients should be treated not only as a cardiac emergency but also as a diabetic one. Thus, every patient with acute coronary syndrome or acute myocardial infarction needs diabetes to be excluded. The other endocrine emergencies are less common, but in some ways more important simply because of their rarity. A high level of suspicion is often required to make a diagnosis, although some, such as myxoedema coma, are usually obvious. Treatment must be started before the diagnosis can be confirmed. Guidance on making the diagnosis and initiating treatment should be made available on the local NHS intranet for non-endocrinologists to access; and where possible expert advice made available by telephone. The basic management steps in the common diabetic and endocrine emergencies are outlined; this is not a complete list, but rather an insight for those involved in non-selected emergency admissions. PMID:15356351

  3. Searching the most appropriate sample pretreatment for the elemental analysis of wines by inductively coupled plasma-based techniques.

    PubMed

    Gonzálvez, A; Armenta, S; Pastor, A; de la Guardia, M

    2008-07-01

    Different sample preparation methods were evaluated for the simultaneous multielement analysis of wine samples by inductively coupled plasma optical emission spectrometry (ICP-OES) and inductively coupled plasma mass spectrometry (ICP-MS). Microwave-assisted digestion in closed vessel, thermal digestion in open reactor, and direct sample dilution were considered for the determination of Li, Be, Na, Mg, Al, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Sr, Y, Mo, Cd, Ba, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Tl, Pb, and Bi in 12 samples of red wine from Valencia and Utiel-Requena protected designation of origin. ICP-MS allows the determination of 17 elements in most of the samples, and using ICP-OES, a maximum of 15 elements were determined. On comparing the sample pretreatment methodology, it can be concluded that the three assayed procedures provide comparable results for the concentration of Li, Na, Mg, Al, K, Ca, Mn, Fe, Zn, and Sr by ICP-OES. Furthermore, ICP-MS data found for Cu, Pb, and Ba were comparable. Digestion treatment provides comparable values using both total decomposition in open system and microwave-assisted treatment for Cu by ICP-OES and for Cr, Ni, and Zn by ICP-MS. Open vessel total digestion provides excess values for Cr, Mn, Fe, and Zn by ICP-OES and defect values for Se. However, direct measurement of diluted wine samples provided uncomparable results with the digestion treatment for Mn, Cu, Pb, Zn, Ba, and Bi by ICP-OES and for Mg, Cr, Fe, Ni, and Zn by ICP-MS. Therefore, it can be concluded that microwave-assisted digestion is the pretreatment procedure of choice for elemental analysis of wine by ICP-based techniques. PMID:18553915

  4. In search of the 'at risk' population: A review of quantitative social vulnerability techniques in the River Parrett catchment

    NASA Astrophysics Data System (ADS)

    Willis, Iain; Fitton, James

    2015-04-01

    In the field of Disaster Risk Reduction (DRR), disparate research agendas have led to an increasing divergence in the quantitative approaches used to define community social vulnerability in hazardous places. Though the output of such research methods have been aligned in their aim of producing a universal risk classification or Social Vulnerability Index (SoVI), the conceptual and statistical approaches have often varied greatly. Methodologies have differed in their use of multivariate statistics to classify small area census data, often making use of techniques such as Pareto ranking, Principal Component Analysis (PCA) or more recently, cluster analysis, to derive geodemographic-based assessments. In this research, two alternative paradigms were applied and contrasted to review community social vulnerability to flooding within the River Parrett catchment area, Somerset, UK. The UK experienced unprecedented rainfall during the winter of 2013/14 resulting in the flooding of 65 km2 of the River Parrett catchment area, Somerset. Approximately 600 properties were flooded and a number of towns cut off due to high floodwaters. It has been estimated that 3,300 properties are potentially exposed to a 1% annual probability flood event within the catchment, with this thought to rise to over 6,600 in the future, due to the impacts of climate change. Since the recent flooding, an action plan has been developed by Somerset County Council. However, the focus is predominantly on the physical aspects of the flooding hazard, with very little consideration for the social vulnerability of the communities affected. Within the catchment there are a range of socioeconomic profiles, including highly urbanised areas such as Yeovil, Taunton and Bridgewater, as well as numerous villages and hamlets. Therefore, the catchment provided an ideal case study area to model two divergent approaches for assessing social vulnerability to flooding. UK Census output information (2011) was used as the primary data source and scale for producing two vulnerability models. The relative weighting, displacement and granularity of both indices was then compared and contrasted to assess social vulnerability to flood risk within the towns and villages of the catchment at census output area level. Research findings highlight the complexity of defining single solutions as well as the importance of understanding social vulnerability within the site-specific context in which it is assessed. Furthermore, this paper questions whether the merits of social vulnerability measures are perhaps better assessed on the use and realistic application such models may hold in disaster communication, preparedness and mitigation.

  5. Searches for invisible axions

    Microsoft Academic Search

    Leslie J Rosenberg; Karl A. van Bibber

    2000-01-01

    The axion, a hypothetical elementary particle, emerged from a compelling solution to the Strong-CP problem in QCD. Subsequently, the axion was recognized to be a good Cold Dark Matter candidate. Although dark matter axions have only feeble couplings to matter and radiation, extremely sensitive searches are underway around the world. We review the state of experiments searching for the axion

  6. Is searching full text more effective than searching abstracts?

    Microsoft Academic Search

    Jimmy J. Lin

    2009-01-01

    Background: With the growing availability of full-text articles online, scientists and other consumers of the life sciences literature now have the ability to go beyond searching bibliographic records (title, abstract, metadata) to directly access full-text content. Motivated by this emerging trend, I posed the following question: is searching full text more effective than searching abstracts? This question is answered by

  7. Emergent technologies: 25 years

    NASA Astrophysics Data System (ADS)

    Rising, Hawley K.

    2013-03-01

    This paper will talk about the technologies that have been emerging over the 25 years since the Human Vision and Electronic Imaging conference began that the conference has been a part of, and that have been a part of the conference, and will look at those technologies that are emerging today, such as social networks, haptic technologies, and still emerging imaging technologies, and what we might look at for the future.Twenty-five years is a long time, and it is not without difficulty that we remember what was emerging in the late 1980s. Yet to be developed: The first commercial digital still camera was not yet on the market, although there were hand held electronic cameras. Personal computers were not displaying standardized images, and image quality was not something that could be talked about in a standardized fashion, if only because image compression algorithms were not standardized yet for several years hence. Even further away were any standards for movie compression standards, there was no personal computer even on the horizon which could display them. What became an emergent technology and filled many sessions later, image comparison and search, was not possible, nor the current emerging technology of social networks- the world wide web was still several years away. Printer technology was still devising dithers and image size manipulations which would consume many years, as would scanning technology, and image quality for both was a major issue for dithers and Fourier noise.From these humble beginnings to the current moves that are changing computing and the meaning of both electronic devices and human interaction with them, we will see a course through the changing technology that holds some features constant for many years, while others come and go.

  8. Emerging Viruses

    NSDL National Science Digital Library

    Lee, Amy.

    Emerging viruses are those "whose incidence in humans has increased in the past 2 decades or threatens to increase in the near future." This week's Topic in Depth focuses on sites related to viruses, particularly those that are considered "emerging."The first site (1) is an essay by Alison Jacobson of the University of Capetown that discusses some emerging and potentially emerging viruses, along with factors that contribute to the threat. From a US government interagency working group, the second report (2) focuses on the responses to infectious disease outbreaks, including drugs, vaccines, and government response. A World Health Organization site (3) highlights recent reports of infectious disease, archived by date and by disease. This ThinkQuest site (4) gives a basic introduction to viruses and how they cause infections. An online virology tutorial (5) by Ed Rybicki of the University of Cape Town serves as a lesson on the basics of virology for a more advanced student. The next two sites focus on the specifics of selected viruses. From the Institute for Molecular Virology (6) comes a resource on Marburg and Ebola viruses, and from the National Biological Information Infrastructure (7) is a site on West Nile Virus. The last resource (8) is a scholarly journal from the Centers for Disease Control that presents some of the latest scientific research on emerging diseases.

  9. Genealogical information searching system

    Microsoft Academic Search

    Sumitra Nuanmeesri; Chanasak Baitiang

    2008-01-01

    The genealogical information is the best resources of the family histories which contain large amount of familiespsila information and relationships between members. Despite the improvement of genealogy searching method, users still face the difficulties of searching. This paper is going to discuss the design and development of suitable techniques that improve efficiency of Genealogical Information Searching System. Regarding the developed

  10. Search Engines for Tomorrow's Scholars

    ERIC Educational Resources Information Center

    Fagan, Jody Condit

    2011-01-01

    Today's scholars face an outstanding array of choices when choosing search tools: Google Scholar, discipline-specific abstracts and index databases, library discovery tools, and more recently, Microsoft's re-launch of their academic search tool, now dubbed Microsoft Academic Search. What are these tools' strengths for the emerging needs of…

  11. Emerging phleboviruses?

    PubMed Central

    Elliott, Richard M; Brennan, Benjamin

    2014-01-01

    The Bunyavidae family is the largest grouping of RNA viruses and arguably the most diverse. Bunyaviruses have a truly global distribution and can infect vertebrates, invertebrates and plants. The majority of bunyaviruses are vectored by arthropods and thus have the remarkable capability to replicate in hosts of disparate phylogeny. The family has provided many examples of emerging viruses including Sin Nombre and related viruses responsible for hantavirus cardiopulmonary syndrome in the Americas, first identified in 1993, and Schmallenberg virus which emerged in Europe in 2011, causing foetal malformations in ruminants. In addition, some well-known bunyaviruses like Rift Valley fever and Crimean-Congo haemorrhagic fever viruses continue to emerge in new geographical locations. In this short review we focus on newly identified viruses associated with severe haemorrhagic disease in humans in China and the US. PMID:24607799

  12. Emergency Medical Treatment for the "Wilderness" Context.

    ERIC Educational Resources Information Center

    National Association for Search and Rescue, Fairfax, VA.

    This paper offers a brief outline of the training curriculum developed by the National Association for Search and Rescue (NASAR) for its Wilderness Medicine Programs. The training modules are designed for wilderness search and rescue units, rural emergency medical services (EMS) squads, military medics, backcountry rangers, epedition leaders,…

  13. Trampoline injury in New Zealand: emergency care

    Microsoft Academic Search

    P A Hume; D J Chalmers; B D Wilson

    1996-01-01

    OBJECTIVE: To examine trampoline related injuries resulting in emergency department attendance. METHODS: Cases were identified by searching free text descriptions of the circumstances of injury contained in the records of the emergency department of a large city hospital. RESULTS: 114 cases were identified for a 12 month period, giving an incidence rate of 108 per 100,000 population per year (95%

  14. Emergency Preparedness for Business: Emergency Contact Information

    MedlinePLUS

    ... Products Programs NIOSH EMERGENCY PREPAREDNESS FOR BUSINESS Emergency Contact Information In An Emergency If you believe that ... agency. Related Information Facility Protection Other Resources Emergency Contact Resources U.S. Poison Control Center Members (American Association ...

  15. MEDICAL EMERGENCIES What is a medical emergency?

    E-print Network

    Fernandez, Eduardo

    911 for emergency assistance · Following the arrangement of emergency medical treatment of Injury form. · assists the employee in selecting the appropriate medical provider. · arrangesMEDICAL EMERGENCIES What is a medical emergency? Serious injury or illness. What do I do

  16. Fusing Natural Computational Paradigms for Cryptanalysis. Or, Using Heuristic Search to Bring Cryptanalysis Problems within Quantum Computational Range

    Microsoft Academic Search

    John A. Clark; Susan Stepney

    2006-01-01

    Recent years have seen the application of evolutionary and other nature-inspired search approaches to achieve human-competitive results in cryptography and cryptanalysis. We have also seen the emergence of quantum computation as a tremendously exciting computational paradigm with significant potential applications in these areas. To date there seems to have been no synergistic application of these techniques in these fields. All

  17. Fusing Natural Computational Paradigms for Cryptography. Or, How to Create Quantum Solvable Cryptographic Problems with Heuristic Search

    Microsoft Academic Search

    John A. Clark; Susan Stepney

    Recent years have seen the application of evolu- tionary and other nature-inspired search approaches to achieve human-competitive results in cryptography. We have also seen the emergence of quantum computation as a tremendously exciting computational paradigm with significant potential applications to cryptography. To date there seems to have been no synergistic application of these techniques to cryptographic problems. All applications are

  18. Emergent topological phenomena in thin films of pyrochlore iridates

    NASA Astrophysics Data System (ADS)

    Yang, Bohm Jung; Nagaosa, Naoto

    2014-03-01

    With the recent development of thin film and artificial superstructure growth technique, it is possible to fabricate a system, moothly connecting the two-dimensions (2D) and three-dimensions (3D). In this work we unveil the dimensional crossover of emergent topological phenomena. In particular, by focusing on the thin film of pyrochlore iridate antiferromagnets grown along the [111] direction, we demonstrate that it can show giant anomalous Hall conductance, which is as large as the Hall conductance of 3D quantum Hall insulators, even though there is no Hall effect in 3D bulk material. In addition, we show the emergence of a genuine new topological phase, dubbed the anti-Chern insulator, which is realized only in thin films. This shows that the thin film of topological materials is a new platform to search unexplored novel topological phenomena.

  19. Emerging Scholars

    ERIC Educational Resources Information Center

    Anyaso, Hilary Hurd; Rolo, Mark Anthony; Roach, Ronald; Delos, Robin Chen; Branch-Brioso, Karen; Miranda, Maria Eugenia; Seymour, Add, Jr.; Grossman, Wendy; Nealy, Michelle J.; Lum, Lydia

    2009-01-01

    This year's group of "emerging scholars" is a force to be reckoned with. This diverse group of young (under-40) crusaders is pushing the boundaries of research, technology and public policy in ways never imagined and reaching new heights of accomplishments. The Class of 2009 includes a physiologist who devised an artificial pancreas to produce the…

  20. EMERGING ISSUES

    EPA Science Inventory

    In order to better fulfill its mission under the Great Lakes Water Quality Agreement for the restoration and maintenance of the chemical, physical, and biological integrity of the Great Lakes Basin Ecosystem GLNPO has funded strategic or emerging issues of basin-wide importance: ...

  1. ["Emergency measures"].

    PubMed

    Louis, Jean-Jacques

    2012-03-01

    This article deals with the impact of health crisis on governance of public health. It tries to show that, in accordance with the thought of Michel Foucault, emergency measures issued during health crisis are akin to those issued during wartime. PMID:22693924

  2. OPERATION EMERGENCE.

    ERIC Educational Resources Information Center

    MELBO, IRVING R.

    THE SIGNIFICANCE OF THE EMERGING ENVIRONMENT FOR THE FUTURE OF PUBLIC EDUCATION IN CALIFORNIA IS CONSIDERED. CERTAIN WORLD REVOLUTIONS HAVE AFFECTED CONTEMPORARY LIFE. THE INDUSTRIAL REVOLUTION BROUGHT WITH IT INCREASED PRODUCTIVITY, RESEARCH, HIGHER STANDARDS OF LIVING, LONGER LIFE SPANS, AND CATEGORIZATION OF NATIONS INTO HAVES AND HAVE NOTS.…

  3. Emerging options for emergency contraception.

    PubMed

    Koyama, Atsuko; Hagopian, Laura; Linden, Judith

    2013-02-18

    Emergency post-coital contraception (EC) is an effective method of preventing pregnancy when used appropriately. EC has been available since the 1970s, and its availability and use have become widespread. Options for EC are broad and include the copper intrauterine device (IUD) and emergency contraceptive pills such as levonorgestrel, ulipristal acetate, combined oral contraceptive pills (Yuzpe method), and less commonly, mifepristone. Some options are available over-the-counter, while others require provider prescription or placement. There are no absolute contraindications to the use of emergency contraceptive pills, with the exception of ulipristal acetate and mifepristone. This article reviews the mechanisms of action, efficacy, safety, side effects, clinical considerations, and patient preferences with respect to EC usage. The decision of which regimen to use is influenced by local availability, cost, and patient preference. PMID:24453516

  4. Study on space evacuation vulnerability in city emergency

    Microsoft Academic Search

    Fanliang Bu; Hui Fang

    2010-01-01

    Before city emergencies happen, one of the most important tasks is to develop contingency plans, and reasonable analysis of space evacuation vulnerability is an important part of contingency plans. Based on the analysis of evacuation vulnerability of emergency area, this article develops a critical evacuation cluster model, and searches for the critical cluster of evacuation area by heuristic searching algorithm.

  5. Advanced Search Search Tips

    E-print Network

    Kinosita Jr., Kazuhiko

    Advanced Search Search Tips Advanced Search Search Tips springerlink.com SpringerLink 2,000 40 Search Tips CONTENT DOI CITATION DOI ISSN ISBN CATEGORY AND DATE LIMITERS Journals Books ProtocolsPress ID Save this Item Saved Item Name MY SPRINGERLINK Pay-per-View 5. http

  6. Dynamic search-window adjustment and interlaced search for block-matching algorithm

    Microsoft Academic Search

    Liang-Wei Lee; Jhing-Fa Wang; Jau-Yien Lee; Jung-Dar Shie

    1993-01-01

    A technique called dynamic search-window adjustment is proposed to improve the performance of three-step searches (TSS) and to prevent the search direction from being easily misdirected by insufficient information. An interlaced-search technique is presented for the purpose of reducing the search positions. A fast search algorithm using both techniques is proposed. It is shown that the average displaced frame difference

  7. Introduction to Video Search Engines Tutorial Notes

    E-print Network

    Fisher, Kathleen

    , education, medical, industrial, scientific, law enforcement, legal, surveillance. Challenges of video search1 Introduction to Video Search Engines Tutorial Notes WWW 2006 David C. Gibbon Abstract: The emergence of video search engines on major web search portals and market forces such as IPTV and mobile

  8. Emergent spin

    SciTech Connect

    Creutz, Michael, E-mail: creutz@bnl.gov

    2014-03-15

    Quantum mechanics and relativity in the continuum imply the well known spin–statistics connection. However for particles hopping on a lattice, there is no such constraint. If a lattice model yields a relativistic field theory in a continuum limit, this constraint must “emerge” for physical excitations. We discuss a few models where a spin-less fermion hopping on a lattice gives excitations which satisfy the continuum Dirac equation. This includes such well known systems such as graphene and staggered fermions. -- Highlights: •The spin–statistics theorem is not required for particles on a lattice. •Spin emerges dynamically when spinless fermions have a relativistic continuum limit. •Graphene and staggered fermions are examples of this phenomenon. •The phenomenon is intimately tied to chiral symmetry and fermion doubling. •Anomaly cancellation is a crucial feature of any valid lattice fermion action.

  9. Emergency Response Manual

    NASA Technical Reports Server (NTRS)

    Barnett, Traci M.

    2004-01-01

    Safety and security is very important at NASA. The Security Management and Safeguards Office goal is ensure safety and security for all NASA Lewis and Plum Brook Station visitors and workers. The office protects against theft, sabotage, malicious damage, espionage, and other threats or acts of violence. There are three types of security at NASA: physical, IT, and personnel. IT is concerned with sensitive and classified information and computers. Physical security includes the officers who check visitors and workers in and patrol the facility. Personnel security is concerned with background checks during hiring. During my internship, I met people from and gained knowledge about all three types of security. I primarily worked with Dr. Richard Soppet in physical security. During my experience with physical security, I observed and worked with many aspects of it. I attended various security meetings at both NASA Lewis and Plum Brook. The meetings were about homeland security and other improvements that will be made to both facilities. I also spent time with a locksmith. The locksmith makes copies of keys and unlocks doors for people who need them. I rode around in a security vehicle with an officer as he patrolled. I also observed the officer make a search of a visitor s vehicle. All visitors vehicles are searched upon entering NASA. I spent time and observed in the dispatch office. The officer answers calls and sends out officers when needed. The officer also monitors the security cameras. My primary task was completing an emergency response manual. This manual would assist local law enforcement and fire agencies in case of an emergency. The manual has pictures and descriptions of the buildings. It also contains the information about hazards inside of the buildings. This information will be very helpul to law enforcement so that when called upon during an emergency, they will not create an even bigger problem with collateral damage.

  10. Emerging zoonoses.

    PubMed Central

    Murphy, F. A.

    1998-01-01

    In the past few years, emergent disease episodes have increased; nearly all have involved zoonotic or species-jumping infectious agents. Because there is no way to predict when or where the next important new zoonotic pathogen will emerge or what its ultimate importance might be, investigation at the first sign of emergence of a new zoonotic disease is particularly important. Such investigation may be described in terms of a discovery-to-control continuum: from recognition of a new disease in a new setting to complex phases involving the hard science disciplines pertaining to discovery, the epidemiologic sciences pertaining to risk assessment, and activities pertaining to risk management. Today, many activities involving zoonotic disease control are at risk because of a failed investigative infrastructure or financial base. Because zoonotic diseases are distinct, their prevention and control will require unique strategies, based more on fundamental research than on traditional approaches. Such strategies require that we rebuild a cadre of career-committed professionals with a holistic appreciation of several medical and biologic sciences. PMID:9716965

  11. Search for Fluid Inclusions in a Carbonaceous Chondrite Using a New X-Ray Micro-Tomography Technique Combined with FIB Sampling

    NASA Technical Reports Server (NTRS)

    Tsuchiyama, A.; Miyake, A.; Zolensky, M. E.; Uesugi, K.; Nakano, T.; Takeuchi, A.; Suzuki, Y.; Yoshida, K.

    2014-01-01

    Early solar system aqueous fluids are preserved in some H chondrites as aqueous fluid inclusions in halite (e.g., [1]). Although potential fluid inclusions are also expected in carbonaceous chondrites [2], they have not been surely confirmed. In order to search for these fluid inclusions, we have developped a new X-ray micro-tomography technique combined with FIB sampling and applied this techniqu to a carbanaceous chondrite. Experimental: A polished thin section of Sutter's Mill meteorite (CM) was observed with an optical microscope and FE-SEM (JEOL 7001F) for chosing mineral grains of carbonates (mainly calcite) and sulfides (FeS and ZnS) 20-50 microns in typical size, which may have aqueous fluid inclusions. Then, a "house" similar to a cube with a roof (20-30 microns in size) is sampled from the mineral grain by using FIB (FEI Quanta 200 3DS). Then, the house was atached to a thin W-needle by FIB and imaged by a SR-based imaging microtomography system with a Fresnel zone plate at beamline BL47XU, SPring-8, Japan. One sample was imaged at two X-ray energies, 7 and 8 keV, to identify mineral phases (dual-enegy microtomography: [3]). The size of voxel (pixel in 3D) was 50-80 nm, which gave the effective spatial resolution of approx. 200 nm. A terrestrial quartz sample with an aqueous fluid inclusion with a bubble was also examined as a test sample by the same method. Results and discussion: A fluid inclusion of 5-8 microns in quartz was clearly identified in a CT image. A bubble of approx. 4 microns was also identified as refraction contrast although the X-ray absorption difference between fluid and bubble is small. Volumes of the fluid and bubble were obtained from the 3D CT images. Fourteen grains of calcite, two grains of iron sulfide and one grain of (Zn,Fe)S were examined. Ten calcite, one iron sulfide and one (Zn,Fe)S grains have inclusions >1 micron in size (the maximum: approx. 5 microns). The shapes are spherical or irregular. Tiny inclusions (<1 micron) are also present in all the grains examined. These results show that mineral grains have more inclusions than expected from 2D observations. The X-ray absorption of the inclusions shows that they are not solid inclusions. No bubbles were observed inside, indicating that we cannot determine whether they are really aqueous fluids or merely voids. One calcite grain has an inclusion approx. 2 microns in size, which seems to have a bubble and a tiny solid daughter crystal inside (three-phase inclusion). As we know the exact 3D position of the inclusion, we will anlyze the inclusion by SIMS after freezing the sample as has been done for a halite sample [3]. The present technique is useful for finding small inclusions not only in carbonaceous chondrites but also for terrestrial materials.

  12. Agent-based resource discovery architecture for environmental emergency management

    Microsoft Academic Search

    Kevin F. R. Liu

    2004-01-01

    An agent-based environmental emergency management framework is introduced as a loosely coupled collection of agents that can cooperate to prepare for and response to environmental emergency situations. In this framework, resources play a critical role because they are the foundation for taking action in environmental emergencies. Therefore, an agent-based resource discovery architecture is then proposed to search for the relevant

  13. 40 CFR 312.25 - Searches for recorded environmental cleanup liens.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...Searches for recorded environmental cleanup liens. 312...Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SUPERFUND, EMERGENCY PLANNING, AND COMMUNITY...Searches for recorded environmental cleanup liens....

  14. 40 CFR 312.25 - Searches for recorded environmental cleanup liens.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...Searches for recorded environmental cleanup liens. 312...Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SUPERFUND, EMERGENCY PLANNING, AND COMMUNITY...Searches for recorded environmental cleanup liens....

  15. 40 CFR 312.25 - Searches for recorded environmental cleanup liens.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...Searches for recorded environmental cleanup liens. 312...Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SUPERFUND, EMERGENCY PLANNING, AND COMMUNITY...Searches for recorded environmental cleanup liens....

  16. Emergency contraception.

    PubMed

    Lalitkumar, P G L; Berger, Cecilia; Gemzell-Danielsson, Kristina

    2013-02-01

    This review will focus on the available methods for emergency contraception (EC), efficacy, side effects and mechanisms of action. Copper intrauterine device (IUD) has been shown to be the most effective method for EC which can be continually used for regular contraception. However, this possibility is seldom used and may be little known. Among the hormonal EC methods 1.5 mg levonorgestrel is the most widely used EC pill while the more recently developed Ulipristal acetate (UPA) has been shown to be the most effective option. This is probably due to a more pronounced prevention of follicular rupture compared with other hormonal EC methods. Knowledge is needed to better advise lactating women and obese women on optimal EC method. Furthermore a possible interaction of UPA with regular hormonal contraception and possibilities for "bridging" from EC to regular contraception needs to be explored. To increase efficacy future studies should focus on EC methods that target the endometrium. PMID:23384749

  17. Decomposition techniques

    USGS Publications Warehouse

    Chao, T.T.; Sanzolone, R.F.

    1992-01-01

    Sample decomposition is a fundamental and integral step in the procedure of geochemical analysis. It is often the limiting factor to sample throughput, especially with the recent application of the fast and modern multi-element measurement instrumentation. The complexity of geological materials makes it necessary to choose the sample decomposition technique that is compatible with the specific objective of the analysis. When selecting a decomposition technique, consideration should be given to the chemical and mineralogical characteristics of the sample, elements to be determined, precision and accuracy requirements, sample throughput, technical capability of personnel, and time constraints. This paper addresses these concerns and discusses the attributes and limitations of many techniques of sample decomposition along with examples of their application to geochemical analysis. The chemical properties of reagents as to their function as decomposition agents are also reviewed. The section on acid dissolution techniques addresses the various inorganic acids that are used individually or in combination in both open and closed systems. Fluxes used in sample fusion are discussed. The promising microwave-oven technology and the emerging field of automation are also examined. A section on applications highlights the use of decomposition techniques for the determination of Au, platinum group elements (PGEs), Hg, U, hydride-forming elements, rare earth elements (REEs), and multi-elements in geological materials. Partial dissolution techniques used for geochemical exploration which have been treated in detail elsewhere are not discussed here; nor are fire-assaying for noble metals and decomposition techniques for X-ray fluorescence or nuclear methods be discussed. ?? 1992.

  18. MEDICAL EMERGENCIES What is a medical emergency?

    E-print Network

    Fernandez, Eduardo

    assistance Following the arrangement of emergency medical treatment for the injured employee, supervisor mustMEDICAL EMERGENCIES What is a medical emergency? Serious injury or illness. What do I do if there is a medical emergency occurring or one has occurred? CALL 911. Paramedics and ambulance service

  19. MEDICAL EMERGENCIES What is a medical emergency?

    E-print Network

    Fernandez, Eduardo

    assistance Following the arrangement of emergency medical treatment for the injured employee, supervisorMEDICAL EMERGENCIES What is a medical emergency? Serious injury or illness. What do I do if there is a medical emergency occurring or one has occurred? CALL 911. Paramedics and ambulance service

  20. Surgical Simulation: An Emerging Technology for Training in Emergency Medicine

    Microsoft Academic Search

    Scott L. Delp; Peter Loan; Cagatay Basdogan; Joseph M. Rosen

    1997-01-01

    The current methods of training medical personnel to provide emergency medical care have severalimportant shortcomings. For example, in the training of wound debridement techniques, animalmodels are used to gain experience treating traumatic injuries. We propose an alternative approachby creating a three-dimensional computer model of the human body that can be used within a virtualenvironment to learn and practice wound debridement

  1. Emergency radiology.

    PubMed

    Farina, Roberto; Catalano, Orlando; Stavolo, Ciro; Sandomenico, Fabio; Petrillo, Antonella; Romano, Luigia

    2015-01-01

    US has a relevant role in the initial assessment of non-traumatic emergencies of the abdomen, sometimes being conclusive and some other times for selecting the patients for further imaging with CT. Injection of a contrast medium may give to the radiologist additional information to that obtained at baseline US and Doppler examination, since real-time, contrast-enhanced US (CEUS) may allow observing findings in the abdomen not recognizable at baseline US or even at color Doppler imaging. Extravascular use of microbubbles may also be useful in clinical practice to rapidly solve a number of unclear aspects. CEUS has a number of distinct advantages in acute patients, including its quickness, low invasiveness, and its possible bedside use. The information based on contrast enhancement is useful for initial diagnosis, therapeutic decision making, and follow-up of the critically ill patients. The purpose of this review is to illustrate the possibilities and limitations of abdominal CEUS in the acute setting, with special emphasis on the detection and characterization of acute inflammatory processes, infarcts, and hemorrhages. PMID:25450869

  2. Emergency contraception.

    PubMed

    Li, Hang-Wun Raymond; Lo, Sue Seen Tsing; Ho, Pak-Chung

    2014-08-01

    This review summarises the development of emergency contraception (EC) methods, and provides an overview on the currently available options of EC which are effective and safe back-up methods in case of non-use or failure of the regular contraception. The copper intrauterine contraceptive device is currently the most effective method. In most countries, a single dose of levonorgestrel 1.5 mg is the first-line hormonal EC given within 72 h of unprotected intercourse. The oral anti-progestogens such as mifepristone and ulipristal acetate are promising alternatives with better efficacies and a wider treatment window of up to 120 h post coitus, probably resulting from more diverse ancillary mechanisms of actions. Education on EC should be part of any contraceptive counselling. Improving access to EC by providing it over the counter or in advance would not promote its abuse nor encourage risky sexual behaviours, but may further facilitate the timely use so as to achieve the best efficacy. PMID:24898437

  3. On the Use of Normalized Edit Distances and an Efficient k-NN Search Technique (k-AESA) for Fast and Accurate String Classification

    Microsoft Academic Search

    Alfons Juan; Enrique Vidal

    2000-01-01

    Classification based on Nearest Neighbours (NN) is a uniformly good approach to many Pattern Recognition (PR) tasks. However, two important aspects need to be taken into account to actually achieve good performance in practice. The first one is the metric or dissimilarity measure adopted to compare the considered patterns. The second is thecom- putational cost incurred by the NN searching

  4. Electronic Career Search.

    ERIC Educational Resources Information Center

    Bratina, Thomas G; Bratina, Tuiren A.

    1998-01-01

    States that career counselors should familiarize themselves with technological resources so that they can encourage job seekers to incorporate electronic search techniques within their job hunts. Discusses online communications, sending resumes electronically, skills assessment, and other electronic technology applications. (MKA)

  5. Web Search. Web Spidering Introduction

    E-print Network

    Inkpen, Diana

    1 Web Search. Web Spidering Introduction #12;2 Outline · Information Retrieval applied on the Web · The Web ­ the largest collection of documents available today ­Still, a collection ­Should be able to apply "traditional" IR techniques, with few changes · Web Search · Spidering #12;3 Web Search Using IR

  6. Human-Guided Tabu Search

    Microsoft Academic Search

    Gunnar W. Klau; Neal Lesh; Joe Marks; Michael Mitzenmacher

    2002-01-01

    We present a human-guidable and general tabu search algo- rithm. Our work expands on previous interactive optimization techniques that provide for substantial human control over as imple, exhaustive search algorithm. User experiments in four domains confirm that human guidance can improve the performance of tabu search and that people obtain superior results by guiding a tabu algorithm than by guiding

  7. Search for standard model Higgs boson production in association with a W boson using a matrix element technique at CDF in pp? collisions at ?s=1.96 TeV

    DOE PAGESBeta

    Aaltonen, T.; Álvarez González, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J. A.; Arisawa, T.; et al

    2012-04-01

    This paper presents a search for standard model Higgs boson production in association with a W boson using events recorded by the CDF experiment in a data set corresponding to an integrated luminosity of 5.6 fb?¹. The search is performed using a matrix element technique in which the signal and background hypotheses are used to create a powerful discriminator. The discriminant output distributions for signal and background are fit to the observed events using a binned likelihood approach to search for the Higgs boson signal. We find no evidence for a Higgs boson, and 95% confidence level (C.L.) upper limitsmore »are set on ?(pp??WH)×B(H?bb¯). The observed limits range from 3.5 to 37.6 relative to the standard model expectation for Higgs boson masses between mH=100 GeV/c² and mH=150 GeV/c². The 95% C.L. expected limit is estimated from the median of an ensemble of simulated experiments and varies between 2.9 and 32.7 relative to the production rate predicted by the standard model over the Higgs boson mass range studied.« less

  8. Search for Standard Model Higgs Boson Production in Association with a $W$ Boson Using a Matrix Element Technique at CDF in $p\\bar{p}$ Collisions at $\\sqrt{s} = 1.96$ TeV

    SciTech Connect

    Aaltonen, T.; /Helsinki Inst. of Phys.; Alvarez Gonzalez, B.; /Oviedo U. /Cantabria Inst. of Phys.; Amerio, S.; /INFN, Padua; Amidei, D.; /Michigan U.; Anastassov, A.; /Northwestern U. /Fermilab; Annovi, A.; /Frascati; Antos, J.; /Comenius U.; Apollinari, G.; /Fermilab; Appel, J.A.; /Fermilab; Arisawa, T.; /Waseda U.; Artikov, A.; /Dubna, JINR /Texas A-M

    2011-12-01

    This paper presents a search for standard model Higgs boson production in association with a W boson using events recorded by the CDF experiment in a dataset corresponding to an integrated luminosity of 5.6 fb{sup -1}. The search is performed using a matrix element technique in which the signal and background hypotheses are used to create a powerful discriminator. The discriminant output distributions for signal and background are fit to the observed events using a binned likelihood approach to search for the Higgs boson signal. We find no evidence for a Higgs boson, and 95% confidence level (C.L.) upper limits are set on {sigma}(p{bar p} {yields} WH) x {Beta}(H {yields} b{bar b}). The observed limits range from 3.5 to 37.6 relative to the standard model expectation for Higgs boson masses between m{sub H} = 100 GeV/c{sup 2} and m{sub H} = 150 GeV/c{sup 2}. The 95% C.L. expected limit is estimated from the median of an ensemble of simulated experiments and varies between 2.9 and 32.7 relative to the production rate predicted by the standard model over the Higgs boson mass range studied.

  9. Search for Standard Model Higgs Boson Production in Association with a W Boson Using a Matrix Element Technique at CDF in p-bar{p} Collisions at sqrt{s} = 1.96 TeV

    E-print Network

    CDF Collaboration; T. Aaltonen; B. Alvarez Gonzalez; S. Amerio; D. Amidei; A. Anastassov; A. Annovi; J. Antos; G. Apollinari; J. A. Appel; A. Apresyan; T. Arisawa; A. Artikov; J. Asaadi; W. Ashmanskas; B. Auerbach; A. Aurisano; F. Azfar; W. Badgett; A. Barbaro-Galtieri; V. E. Barnes; B. A. Barnett; P. Barria; P. Bartos; M. Bauce; G. Bauer; F. Bedeschi; D. Beecher; S. Behari; G. Bellettini; J. Bellinger; D. Benjamin; A. Beretvas; A. Bhatti; M. Binkley; D. Bisello; I. Bizjak; K. R. Bland; B. Blumenfeld; A. Bocci; A. Bodek; D. Bortoletto; J. Boudreau; A. Boveia; L. Brigliadori; A. Brisuda; C. Bromberg; E. Brucken; M. Bucciantonio; J. Budagov; H. S. Budd; S. Budd; K. Burkett; G. Busetto; P. Bussey; A. Buzatu; C. Calancha; S. Camarda; M. Campanelli; M. Campbell; F. Canelli; B. Carls; D. Carlsmith; R. Carosi; S. Carrillo; S. Carron; B. Casal; M. Casarsa; A. Castro; P. Catastini; D. Cauz; V. Cavaliere; M. Cavalli-Sforza; A. Cerri; L. Cerrito; Y. C. Chen; M. Chertok; G. Chiarelli; G. Chlachidze; F. Chlebana; K. Cho; D. Chokheli; J. P. Chou; W. H. Chung; Y. S. Chung; C. I. Ciobanu; M. A. Ciocci; A. Clark; C. Clarke; C. Coibanu; G. Compostella; M. E. Convery; J. Conway; M. Corbo; M. Cordelli; C. A. Cox; D. J. Cox; F. Crescioli; C. Cuenca Almenar; J. Cuevas; R. Culbertson; D. Dagenhart; N. d'Ascenzo; M. Datta; P. de Barbaro; S. De Cecco; G. De Lorenzo; M. Dell'Orso; C. Deluca; L. Demortier; J. Deng; M. Deninno; F. Devoto; M. d'Errico; A. Di Canto; B. Di Ruzza; J. R. Dittmann; M. D'Onofrio; S. Donati; P. Dong; M. Dorigo; T. Dorigo; K. Ebina; A. Elagin; A. Eppig; R. Erbacher; D. Errede; S. Errede; N. Ershaidat; R. Eusebi; H. C. Fang; S. Farrington; M. Feindt; J. P. Fernandez; C. Ferrazza; R. Field; G. Flanagan; R. Forrest; M. J. Frank; M. Franklin; J. C. Freeman; Y. Funakoshi; I. Furic; M. Gallinaro; J. Galyardt; J. E. Garcia; A. F. Garfinkel; P. Garosi; H. Gerberich; E. Gerchtein; S. Giagu; V. Giakoumopoulou; P. Giannetti; K. Gibson; C. M. Ginsburg; N. Giokaris; P. Giromini; M. Giunta; G. Giurgiu; V. Glagolev; D. Glenzinski; M. Gold; D. Goldin; N. Goldschmidt; A. Golossanov; G. Gomez; G. Gomez-Ceballos; M. Goncharov; O. Gonzalez; I. Gorelov; A. T. Goshaw; K. Goulianos; S. Grinstein; C. Grosso-Pilcher; R. C. Group; J. Guimaraes da Costa; Z. Gunay-Unalan; C. Haber; S. R. Hahn; E. Halkiadakis; A. Hamaguchi; J. Y. Han; F. Happacher; K. Hara; D. Hare; M. Hare; R. F. Harr; K. Hatakeyama; C. Hays; M. Heck; J. Heinrich; M. Herndon; S. Hewamanage; D. Hidas; A. Hocker; W. Hopkins; D. Horn; S. Hou; R. E. Hughes; M. Hurwitz; U. Husemann; N. Hussain; M. Hussein; J. Huston; G. Introzzi; M. Iori; A. Ivanov; E. James; D. Jang; B. Jayatilaka; E. J. Jeon; M. K. Jha; S. Jindariani; W. Johnson; M. Jones; K. K. Joo; S. Y. Jun; T. R. Junk; T. Kamon; P. E. Karchin; A. Kasmi; Y. Kato; W. Ketchum; J. Keung; V. Khotilovich; B. Kilminster; D. H. Kim; H. S. Kim; H. W. Kim; J. E. Kim; M. J. Kim; S. B. Kim; S. H. Kim; Y. K. Kim; N. Kimura; M. Kirby; S. Klimenko; K. Kondo; D. J. Kong; J. Konigsberg; A. V. Kotwal; M. Kreps; J. Kroll; D. Krop; N. Krumnack; M. Kruse; V. Krutelyov; T. Kuhr; M. Kurata; S. Kwang; A. T. Laasanen; S. Lami; S. Lammel; M. Lancaster; R. L. Lander; K. Lannon; A. Lath; G. Latino; T. LeCompte; E. Lee; H. S. Lee; J. S. Lee; S. W. Lee; S. Leo; S. Leone; J. D. Lewis; A. Limosani; C. -J. Lin; J. Linacre; M. Lindgren; E. Lipeles; A. Lister; D. O. Litvintsev; C. Liu; Q. Liu; T. Liu; S. Lockwitz; A. Loginov; D. Lucchesi; J. Lueck; P. Lujan; P. Lukens; G. Lungu; J. Lys; R. Lysak; R. Madrak; K. Maeshima; K. Makhoul; S. Malik; G. Manca; A. Manousakis-Katsikakis; F. Margaroli; C. Marino; M. Martinez; R. Martinez-Ballarin; P. Mastrandrea; M. E. Mattson; P. Mazzanti; K. S. McFarland; P. McIntyre; R. McNulty; A. Mehta; P. Mehtala; A. Menzione; C. Mesropian; T. Miao; D. Mietlicki; A. Mitra; H. Miyake; S. Moed; N. Moggi; M. N. Mondragon; C. S. Moon; R. Moore; M. J. Morello; J. Morlock; P. Movilla Fernandez; A. Mukherjee; Th. Muller; P. Murat; M. Mussini; J. Nachtman; Y. Nagai; J. Naganoma; I. Nakano; A. Napier; J. Nett; C. Neu; M. S. Neubauer; J. Nielsen; L. Nodulman; O. Norniella; E. Nurse; L. Oakes; S. H. Oh; Y. D. Oh; I. Oksuzian; T. Okusawa; R. Orava; L. Ortolan; S. Pagan Griso; C. Pagliarone; E. Palencia; V. Papadimitriou; A. A. Paramonov; J. Patrick; G. Pauletta; M. Paulini; C. Paus; D. E. Pellett; A. Penzo; T. J. Phillips; G. Piacentino; E. Pianori; J. Pilot; K. Pitts; C. Plager; L. Pondrom; S. Poprocki; K. Potamianos; O. Poukhov; F. Prokoshin; A. Pronko; F. Ptohos; E. Pueschel; G. Punzi; J. Pursley; A. Rahaman; V. Ramakrishnan; N. Ranjan; I. Redondo; P. Renton; M. Rescigno; T. Riddick; F. Rimondi; L. Ristori; A. Robson; T. Rodrigo; T. Rodriguez; E. Rogers; S. Rolli; R. Roser; M. Rossi; F. Rubbo; F. Ruffini; A. Ruiz; J. Russ; V. Rusu; A. Safonov; W. K. Sakumoto; Y. Sakurai; L. Santi; L. Sartori; K. Sato; V. Saveliev

    2012-04-18

    This paper presents a search for standard model Higgs boson production in association with a $W$ boson using events recorded by the CDF experiment in a dataset corresponding to an integrated luminosity of 5.6 fb-1. The search is performed using a matrix element technique in which the signal and background hypotheses are used to create a powerful discriminator. The discriminant output distributions for signal and background are fit to the observed events using a binned likelihood approach to search for the Higgs boson signal. We find no evidence for a Higgs boson, and 95% confidence level (C.L.) upper limits are set on the Higgs boson production rate. The observed limits range from 3.5 to 37.6 relative to the standard model expectation for Higgs boson masses between 100 and 150 GeV. The 95% C.L. expected limit is estimated from the median of an ensemble of simulated experiments and varies between 2.9 and 32.7 relative to the production rate predicted by the standard model over the Higgs boson mass range studied.

  10. Higgs Searches

    SciTech Connect

    Peters, Krisztian

    2009-11-01

    We present the status and prospects of Higgs searches at the Tevatron and the LHC. Results from the Tevatron are using up to 5 fb{sup -} of data collected with the CDF and D0 detectors. The major contributing processes include associated production (WH {yields} l{nu}bb, ZH {yields} {nu}{nu}bb, ZH {yields} llbb) and gluon fusion (gg {yields} H {yields} WW{sup (*)}). Improvements across the full mass range resulting from the larger data sets, improved analyses techniques and increased signal acceptance are discussed. Recent results exclude the SM Higgs boson in a mass range of 160 < m{sub H} < 170 GeV. Searches for the neutral MSSM Higgs boson in the region 90 < m{sub A} < 200 GeV exclude tan {beta} values down to 30 for several benchmark scenarios.

  11. Emergency Medicine Grand Rounds Emergency Medicine Classroom

    E-print Network

    Emergency Medicine Grand Rounds Emergency Medicine Classroom Tuesday, September 3, 2013 8 am ­ 9 am Department Presented by: Azeem Tajani, MD PGY-3, ECU Emergency Medicine Objectives: 1. Discuss the State in the suicidal Patient. Accreditation: The Brody School of Medicine of East Carolina University is accredited

  12. Emergency airway puncture

    MedlinePLUS

    Emergency airway puncture is the placement of a hollow needle through the throat into the airway. It ... Emergency airway puncture is done in an emergency situation, when someone is choking and all other efforts ...

  13. Emergency Medical Services

    MedlinePLUS

    ... need help right away, you should use emergency medical services. These services use specially trained people and ... emergencies, you need help where you are. Emergency medical technicians, or EMTs, do specific rescue jobs. They ...

  14. Types of Radiation Emergencies

    MedlinePLUS

    ... a radiation emergency happens in your area. Â Nuclear Emergencies A nuclear emergency involves the explosion of ... their knowledge. Learn more about radiological exposure devices Nuclear Power Plant Accident An accident at a nuclear ...

  15. New fluorescence technique to search for neutrino masses by identification of double beta decay barium-136 ion daughters in liquid xenon

    Microsoft Academic Search

    Shie-Chang Jeng

    2004-01-01

    This work presents the initial research on the development of a new fluorescence technique for laser tagging of single 136Ba+ daughters from 0nubetabeta decay of 136Xe. 0nubetabeta decay is the only probe which is able to reach the absolute neutrino mass scale with meV sensitivity. The next generation 0nubetabeta experiments with meV sensitivity require new techniques for background rejection in

  16. Emerging Technology Trends October 22, 2005

    E-print Network

    Arizona, University of

    blogs Emerging Technology Trends October 22, 2005 Air and ground robots to collaborate in space-tiered robotic space missions will associate orbiting spacecrafts, blimps and balloons with ground robots. All the balloons or blimps. These airborne agents would start their searches for targets important to mission goals

  17. Organising Communities-of-Practice: Facilitating Emergence

    ERIC Educational Resources Information Center

    Akkerman, Sanne; Petter, Christian; de Laat, Maarten

    2008-01-01

    Purpose: The notion of communities of practice (CoP) has received great attention in educational and organisational practice and research. Although the concept originally refers to collaborative practices that emerge naturally, educational and HRD practitioners are increasingly searching for ways to create these practices intentionally in order to…

  18. Neutron energy measurements in emergency response applications

    Microsoft Academic Search

    Sanjoy Mukhopadhyay; Paul Guss; Michael Hornish; Scott Wilde; Tom Stampahar; Michael Reed

    2009-01-01

    We present significant results in recent advances in the measurement of neutron energy. Neutron energy measurements are a small but significant part of radiological emergency response applications. Mission critical information can be obtained by analyzing the neutron energy given off from radioactive materials. In the case of searching for special nuclear materials, neutron energy information from an unknown source can

  19. A systematic review of search-based testing for non-functional system properties

    Microsoft Academic Search

    Wasif Afzal; Richard Torkar; Robert Feldt

    2009-01-01

    Search-based software testing is the application of metaheuristic search techniques to generate software tests. The test adequacy criterion is transformed into a fitness function and a set of solutions in the search space are evaluated with respect to the fitness function using a metaheuristic search technique. The application of metaheuristic search techniques for testing is promising due to the fact

  20. Verification of NASA Emergent Systems

    NASA Technical Reports Server (NTRS)

    Rouff, Christopher; Vanderbilt, Amy K. C. S.; Truszkowski, Walt; Rash, James; Hinchey, Mike

    2004-01-01

    NASA is studying advanced technologies for a future robotic exploration mission to the asteroid belt. This mission, the prospective ANTS (Autonomous Nano Technology Swarm) mission, will comprise of 1,000 autonomous robotic agents designed to cooperate in asteroid exploration. The emergent properties of swarm type missions make them powerful, but at the same time are more difficult to design and assure that the proper behaviors will emerge. We are currently investigating formal methods and techniques for verification and validation of future swarm-based missions. The advantage of using formal methods is their ability to mathematically assure the behavior of a swarm, emergent or otherwise. The ANT mission is being used as an example and case study for swarm-based missions for which to experiment and test current formal methods with intelligent swam. Using the ANTS mission, we have evaluated multiple formal methods to determine their effectiveness in modeling and assuring swarm behavior.

  1. Multi-dimensional search via Fractional Particle Swarm Optimization in Dynamic Environments 1 Abstract--Particle swarm optimization (PSO) was proposed as an optimization technique for static environments;

    E-print Network

    Gabbouj, Moncef

    Abstract-- Particle swarm optimization (PSO) was proposed as an optimization technique for static several major problems of PSO and exhibit a significant performance over multi-modal and non-stationary environments. In order to address the premature convergence problem and improve the rate of PSO's convergence

  2. Information Systems Coordinate Emergency Management

    NASA Technical Reports Server (NTRS)

    2012-01-01

    The rescue crews have been searching for the woman for nearly a week. Hurricane Katrina devastated Hancock County, the southernmost point in Mississippi, and the woman had stayed through the storm in her beach house. There is little hope of finding her alive; the search teams know she is gone because the house is gone. Late at night in the art classroom of the school that is serving as the county s emergency operations center, Craig Harvey is discussing the search with the center s commander. Harvey is the Chief Operating Officer of a unique company called NVision Solutions Inc., based at NASA s Stennis Space Center in Bay St. Louis, only a couple of miles away. He and his entire staff have set up a volunteer operation in the art room, supporting the emergency management efforts using technology and capabilities the company developed through its NASA partnerships. As he talks to the commander, Harvey feels an idea taking shape that might lead them to the woman s location. Working with surface elevation data and hydrological principles, Harvey creates a map showing how the floodwaters from the storm would have flowed along the topography of the region around the woman s former home. Using the map, search crews find the woman s body in 15 minutes. Recovering individuals who have been lost is a sad reality of emergency management in the wake of a disaster like Hurricane Katrina in 2005. But the sooner answers can be provided, the sooner a community s overall recovery can take place. When damage is extensive, resources are scattered, and people are in dire need of food, shelter, and medical assistance, the speed and efficiency of emergency operations can be the key to limiting the impact of a disaster and speeding the process of recovery. And a key to quick and effective emergency planning and response is geographic information. With a host of Earth-observing satellites orbiting the globe at all times, NASA generates an unmatched wealth of data about our ever-changing planet. This information can be captured, analyzed, and visualized by geographic information systems (GIS) to produce maps, charts, and other tools that can reveal information essential to a wide variety of applications including emergency management. Knowing precise, real-time information about the size, location, environmental conditions, and resulting damage of an event like a flood or wildfire as well as the location and numbers of emergency responders and other resources contributes directly to the effectiveness of disaster mitigation. The need for such information is also evident when responding to homeland security threats, such as a terrorist attack. Recognizing the value of its geospatial information resources for this and other purposes, in 1998 Stennis and the state of Mississippi partnered to form what became the Enterprise for Innovative Geospatial Solutions (EIGS) industry cluster, supporting the growth of remote sensing and GIS-based research and business. As part of EIGS, several companies partnered with NASA through dual use and Small Business Innovation Research (SBIR) contracts. Among those was NVision.

  3. Emergency navigation without an infrastructure.

    PubMed

    Gelenbe, Erol; Bi, Huibo

    2014-01-01

    Emergency navigation systems for buildings and other built environments, such as sport arenas or shopping centres, typically rely on simple sensor networks to detect emergencies and, then, provide automatic signs to direct the evacuees. The major drawbacks of such static wireless sensor network (WSN)-based emergency navigation systems are the very limited computing capacity, which makes adaptivity very difficult, and the restricted battery power, due to the low cost of sensor nodes for unattended operation. If static wireless sensor networks and cloud-computing can be integrated, then intensive computations that are needed to determine optimal evacuation routes in the presence of time-varying hazards can be offloaded to the cloud, but the disadvantages of limited battery life-time at the client side, as well as the high likelihood of system malfunction during an emergency still remain. By making use of the powerful sensing ability of smart phones, which are increasingly ubiquitous, this paper presents a cloud-enabled indoor emergency navigation framework to direct evacuees in a coordinated fashion and to improve the reliability and resilience for both communication and localization. By combining social potential fields (SPF) and a cognitive packet network (CPN)-based algorithm, evacuees are guided to exits in dynamic loose clusters. Rather than relying on a conventional telecommunications infrastructure, we suggest an ad hoc cognitive packet network (AHCPN)-based protocol to adaptively search optimal communication routes between portable devices and the network egress nodes that provide access to cloud servers, in a manner that spares the remaining battery power of smart phones and minimizes the time latency. Experimental results through detailed simulations indicate that smart human motion and smart network management can increase the survival rate of evacuees and reduce the number of drained smart phones in an evacuation process. PMID:25196014

  4. TOWARDS FEDERATED CONSUMER PRODUCT SEARCH FROM HETEROGENEOUS SOURCES

    Microsoft Academic Search

    Daniel Schuster; Maximilian Walther; Iris Braun

    Federated search techniques improve search experience in a number of application areas, especially consumer product search. Existing systems for consumer product search often depend on one database only or federate multiple homogeneous information sources like Web Services of online shopping malls. We investigate possibilities for federated product search using heterogeneous sources like manufacturer websites and the Deep Web. The architecture

  5. Mining User preference using Spy voting for search engine personalization

    Microsoft Academic Search

    Ng Wilfred; Lin Deng; Dik Lun Lee

    2007-01-01

    This article addresses search engine personalization. We present a new approach to mining a user's preferences on the search results from clickthrough data and using the discovered preferences to adapt the search engine's ranking function for improving search quality. We develop a new preference mining technique called SpyNB, which is based on the practical assumption that the search results clicked

  6. The search for neutrinoless double beta decay

    E-print Network

    J. J. Gomez-Cadenas; J. Martin-Albo; M. Mezzetto; F. Monrabal; M. Sorel

    2012-01-16

    In the last two decades the search for neutrinoless double beta decay has evolved into one of the highest priorities for understanding neutrinos and the origin of mass. The main reason for this paradigm shift has been the discovery of neutrino oscillations, which clearly established the existence of massive neutrinos. An additional motivation for conducting such searches comes from the existence of an unconfirmed, but not refuted, claim of evidence for neutrinoless double decay in $^{76}\\text{Ge}$. As a consequence, a new generation of experiments, employing different detection techniques and $\\beta\\beta$ isotopes, is being actively promoted by experimental groups across the world. In addition, nuclear theorists are making remarkable progress in the calculation of the neutrinoless double beta decay nuclear matrix elements, thus eliminating a substantial part of the theoretical uncertainties affecting the particle physics interpretation of this process. In this report, we review the main aspects of the double beta decay process and some of the most relevant experiments. The picture that emerges is one where searching for neutrinoless double beta decay is recognized to have both far-reaching theoretical implications and promising prospects for experimental observation in the near future.

  7. Quality Uncertainty and the Performance of Online Sponsored Search Markets: An Empirical Investigation

    Microsoft Academic Search

    Animesh Animesh; Vandana Ramachandran; Siva Viswanathan

    2006-01-01

    Sponsored search mechanisms, where advertisers bid for better placement in the listing of search results on search services such as Yahoo! and Google integrate the benefits of online search with advertising, and have emerged as the dominant revenue model for online search engines. Interestingly, Yahoo! and Google employ different mechanisms to determine the placement of bidders' advertisements. This provides an

  8. Emergent topological phenomena in thin films of pyrochlore iridates.

    PubMed

    Yang, Bohm-Jung; Nagaosa, Naoto

    2014-06-20

    Because of the recent development of thin film and artificial superstructure growth techniques, it is possible to control the dimensionality of the system, smoothly between two and three dimensions. In this Letter we unveil the dimensional crossover of emergent topological phenomena in correlated topological materials. In particular, by focusing on the thin film of pyrochlore iridate antiferromagnets grown along the [111] direction, we demonstrate that the thin film can have a giant anomalous Hall conductance, proportional to the thickness of the film, even though there is no Hall effect in 3D bulk material. Moreover, in the case of ultrathin films, a quantized anomalous Hall conductance can be observed, despite the fact that the system is an antiferromagnet. In addition, we uncover the emergence of a new topological phase, the nontrivial topological properties of which are hidden in the bulk insulator and manifest only in thin films. This shows that the thin film of correlated topological materials is a new platform to search for unexplored novel topological phenomena. PMID:24996097

  9. Emergent Topological Phenomena in Thin Films of Pyrochlore Iridates

    NASA Astrophysics Data System (ADS)

    Yang, Bohm-Jung; Nagaosa, Naoto

    2014-06-01

    Because of the recent development of thin film and artificial superstructure growth techniques, it is possible to control the dimensionality of the system, smoothly between two and three dimensions. In this Letter we unveil the dimensional crossover of emergent topological phenomena in correlated topological materials. In particular, by focusing on the thin film of pyrochlore iridate antiferromagnets grown along the [111] direction, we demonstrate that the thin film can have a giant anomalous Hall conductance, proportional to the thickness of the film, even though there is no Hall effect in 3D bulk material. Moreover, in the case of ultrathin films, a quantized anomalous Hall conductance can be observed, despite the fact that the system is an antiferromagnet. In addition, we uncover the emergence of a new topological phase, the nontrivial topological properties of which are hidden in the bulk insulator and manifest only in thin films. This shows that the thin film of correlated topological materials is a new platform to search for unexplored novel topological phenomena.

  10. Emergency Care of Children

    MedlinePLUS

    ... Pediatrics (ABP) in 1992 developed a subspecialty in pediatric emergency medicine to further advance research and education for the ... care of children, including conducting research and teaching pediatric emergency medicine. More than 1,000 doctors have become board- ...

  11. New and Emerging Occupations.

    ERIC Educational Resources Information Center

    Crosby, Olivia

    2002-01-01

    Discusses how new and emerging occupations develop, why they are hard to identify, what risks and rewards vanguard workers face, and how to find a cutting-edge job. Describes strategies researchers use to identify emerging careers. (JOW)

  12. EMERGING CONTAMINANTS IN BIOSOLIDS

    EPA Science Inventory

    Emerging contaminants are receiving increasing media and scientific attention. These chemicals are sometimes referred to as compounds of emerging concern or trace organic compounds, and include several groups of chemicals including endocrine disrupting compounds (EDCs), and phar...

  13. Modelling weed emergence patterns

    Microsoft Academic Search

    L. M. Vleeshouwers

    1997-01-01

    Anticipating weed pressure may be important in selecting and timing weed control measures in order to optimize their effectiveness, and thus reduce herbicide use. Therefore, a predictive model of the time of emergence and the numbers of seedling emerging (the weed emergence pattern) after soil cultivation may be a useful tool in integrated weed management. In this study, a simulation

  14. MSU EMERGENCY ACTION TEAM

    E-print Network

    Liu, Taosheng

    to a secure inside facility or a sheltered location away from windows. This could be an interior hallway. Procedures for Securing-in-Place Emergency Coordinator Update ­ Content #12;Visual 1.3 Plan Development station locations Fire rated stairwell locations Emergency phone locations #12;Sample Emergency Floor

  15. International Emergency Medicine Fellowships

    Microsoft Academic Search

    Philip D. Anderson

    International emergency medicine (IEM) fellowship training for United States medical graduates (USMGs) provides opportunities for gaining knowledge and skills valuable to physicians interested in pursuing careers in international health. USMG physicians working in IEM have tended to focus their activities on providing international humanitarian relief and developing emergency medicine (EM) training and care delivery systems. Observational Emergency Medicine fellowships for

  16. Emerging and Re-Emerging Infectious Diseases

    MedlinePLUS

    ... more information on enabling JavaScript. Emerging Infectious Diseases/Pathogens Skip Content Marketing Share this: Main Content Area ... Divisions supporting such research. NIAID Biodefense Research Priority Pathogens List of NIAID Category A-C pathogens Additional ...

  17. Tactical emergency medical services: an emerging subspecialty of emergency medicine.

    PubMed

    Heiskell, L E; Carmona, R H

    1994-04-01

    Law enforcement agencies are recognizing the need to have emergency medical care available at the scene of any incident involving tactical operations. The potentially volatile and dangerous atmosphere surrounding tactical operations is conducive to severe injury to officers, hostages, suspects, and bystanders. This mandates the immediate availability of basic and advanced life support services. However, a purely traditional approach to emergency medical services in the tactical environment may not be feasible and may expose prehospital personnel to greater danger. It also may disrupt the law enforcement mission. These factors mandate a different set of field assessment and treatment priorities. To meet these needs, selected prehospital personnel and emergency physicians train to work with and support special weapons and tactics teams. PMID:8161047

  18. Emerging and re-emerging swine viruses.

    PubMed

    Meng, X J

    2012-03-01

    In the past two decades or so, a number of viruses have emerged in the global swine population. Some, such as porcine reproductive and respiratory syndrome virus (PRRSV) and porcine circovirus type 2 (PCV2), cause economically important diseases in pigs, whereas others such as porcine torque teno virus (TTV), now known as Torque teno sus virus (TTSuV), porcine bocavirus (PBoV) and related novel parvoviruses, porcine kobuvirus, porcine toroviruses (PToV) and porcine lymphotropic herpesviruses (PLHV), are mostly subclinical in swine herds. Although some emerging swine viruses such as swine hepatitis E virus (swine HEV), porcine endogenous retrovirus (PERV) and porcine sapovirus (porcine SaV) may have a limited clinical implication in swine health, they do pose a potential public health concern in humans due to zoonotic (swine HEV) or potential zoonotic (porcine SaV) and xenozoonotic (PERV, PLHV) risks. Other emerging viruses such as Nipah virus, Bungowannah virus and Menangle virus not only cause diseases in pigs but some also pose important zoonotic threat to humans. This article focuses on emerging and re-emerging swine viruses that have a limited or uncertain clinical and economic impact on pig health. The transmission, epidemiology and pathogenic potential of these viruses are discussed. In addition, the two economically important emerging viruses, PRRSV and PCV2, are also briefly discussed to identify important knowledge gaps. PMID:22225855

  19. Emergency medicine in Slovenia--emergency center, prehospital emergency medicine and academic emergency medicine.

    PubMed

    Grmec, Stefek; Mally, Stefan

    2009-01-01

    Public health service is organized in such a manner so as to ensure all the inhabitants of the Republic of Slovenia the emergency medical assistance available at all times, including emergency transport and provision of emergency medicinal products as soon as possible and as close to the date of their manufacture as possible and during transport. Emergency medical assistance means the implementation of necessary measures by doctors and their teams with persons whose life is imminently threatened due to illness or injury and persons, respectively, who could be affected by such a risk in a short period of time according to the symptoms. Emergency calls are received and processed by the emergency medical assistance service which forms an integral part of the public health service network. Emergency patients with life-threatening trauma or disease are treated by prehospital emergency physicians at the scene and during transport. Emergency patients are guaranteed to be reached by an appropriate emergency vehicle and a respective crew within 10 minutes in 80% of the responses and within 15 minutes in 95% of cases. In Slovenia was established 30 years ago the so-called Franco-German system, with a highly developed pre-hospital emergency physician service and interdisciplinary hospital-based emergency medicine on different departments (trauma center, department for internal intensiv medicine, department of ananstesiology, department for neurology and pediatrics department (1). This gap is now closing fast because of the rapid advancement of hospital-based emergency medicine in Slovenia. In-hospital emergency medicine has been reorganized in many hospitals during the last few years. Economic and quality arguments have initiated the development of departments for emergency medicine in Slovenia. In the future, this will lead to new qualification criteria for physicians working in these departments. Four specific recommendations for development and organizations emergency medicine are required: the recognition as a specialty, the specialist training programme, the professional organization of emergency physicians and the presence of academic emergency centres (2). Slovenia is one of the 11 European countries who recognize hospital-based emergency medicine as a specialty (3, 4). This is 5-year specialty training (based on European curriculum) and the curriculum follows a symptom-oriented approach to emergency medicine, and includes a skilled description of the key competencies of the future trained emergency physicians (4). Slovenia has very well organised prehospital on-physician based emergency service and new qualification criteria for those physicians in emergency departments, therefore, need to be developed with primary education trainers for emergency medicine. In the model of integration of prehospital and hospital emergency medicine in academic emergency centers, emergency physicians work equal in ED and in the field on the method of rotation without changes of actual prehospital on-physicians based EMS.The integrative model have one in-door for emergency patients, mobility ofprehospital emergency physicians, a nurse-driven triage system and support of primary care physicians as gatekeepers. PMID:23120863

  20. LUNASKA experiments using the Australia Telescope Compact Array to search for ultrahigh energy neutrinos and develop technology for the lunar Cherenkov technique

    SciTech Connect

    James, C. W.; Protheroe, R. J. [School of Chemistry and Physics, University of Adelaide (Australia); Ekers, R. D.; Phillips, C. J.; Roberts, P. [Australia Telescope National Facility, Epping (Australia); Alvarez-Muniz, J. [Department Fisica de Particulas and IGFAE, Universidad de Santiago de Compostela (Spain); Bray, J. D. [School of Chemistry and Physics, University of Adelaide (Australia); Australia Telescope National Facility, Epping (Australia); McFadden, R. A. [School of Physics, Univ. of Melbourne (Australia); Australia Telescope National Facility, Epping (Australia)

    2010-02-15

    We describe the design, performance, sensitivity and results of our recent experiments using the Australia Telescope Compact Array (ATCA) for lunar Cherenkov observations with a very wide (600 MHz) bandwidth and nanosecond timing, including a limit on an isotropic neutrino flux. We also make a first estimate of the effects of small-scale surface roughness on the effective experimental aperture, finding that contrary to expectations, such roughness will act to increase the detectability of near-surface events over the neutrino energy-range at which our experiment is most sensitive (though distortions to the time-domain pulse profile may make identification more difficult). The aim of our 'Lunar UHE Neutrino Astrophysics using the Square Kilometre Array' (LUNASKA) project is to develop the lunar Cherenkov technique of using terrestrial radio telescope arrays for ultrahigh energy (UHE) cosmic ray (CR) and neutrino detection, and, in particular, to prepare for using the Square Kilometre Array (SKA) and its path-finders such as the Australian SKA Pathfinder (ASKAP) and the Low Frequency Array (LOFAR) for lunar Cherenkov experiments.

  1. In search of a reliable technique for the determination of the biological stability of the organic matter in the mechanical-biological treated waste.

    PubMed

    Barrena, Raquel; d'Imporzano, Giuliana; Ponsá, Sergio; Gea, Teresa; Artola, Adriana; Vázquez, Felícitas; Sánchez, Antoni; Adani, Fabrizio

    2009-03-15

    The biological stability determines the extent to which readily biodegradable organic matter has decomposed. In this work, a massive estimation of indices suitable for the measurement of biological stability of the organic matter content in solid waste samples has been carried out. Samples from different stages in a mechanical-biological treatment (MBT) plant treating municipal solid wastes (MSW) were selected as examples of different stages of organic matter stability in waste biological treatment. Aerobic indices based on respiration techniques properly reflected the process of organic matter biodegradation. Static and dynamic respirometry showed similar values in terms of aerobic biological activity (expressed as oxygen uptake rate, OUR), whereas cumulative oxygen consumption was a reliable method to express the biological stability of organic matter in solid samples. Methods based on OUR and cumulative oxygen consumption were positively correlated. Anaerobic methods based on biogas production (BP) tests also reflected well the degree of biological stability, although significant differences were found in solid and liquid BP assays. A significant correlation was found between cumulative oxygen consumption and ultimate biogas production. The results obtained in this study can be a basis for the quantitative measurement of the efficiency in the stabilization of organic matter in waste treatment plants, including MBT plants, anaerobic digestion of MSW and composting plants. PMID:18606494

  2. Emergency Management Guide

    SciTech Connect

    Not Available

    1994-09-01

    This Emergency Management Guide provides guidance for the implementation of the requirements of the Department of Energy (DOE) Emergency Management System (EMS). The DOE EMS is established by DOE 5500.1B, EMERGENCY DEPARTMENT SYSTEM. The provisions of this guide specify neither policy nor responsibilities. It provides an acceptable approach to emergency planning activities at DOE facilities and sites. Other approaches may be used provided that they are approved by the cognizant Program Secretarial Officer (PSO), with the concurrence of the Director of Emergency Operations (DEO).

  3. Keeping Dublin Core Simple: Cross-Domain Discovery or Resource Description?; First Steps in an Information Commerce Economy: Digital Rights Management in the Emerging E-Book Environment; Interoperability: Digital Rights Management and the Emerging EBook Environment; Searching the Deep Web: Direct Query Engine Applications at the Department of Energy.

    ERIC Educational Resources Information Center

    Lagoze, Carl; Neylon, Eamonn; Mooney, Stephen; Warnick, Walter L.; Scott, R. L.; Spence, Karen J.; Johnson, Lorrie A.; Allen, Valerie S.; Lederman, Abe

    2001-01-01

    Includes four articles that discuss Dublin Core metadata, digital rights management and electronic books, including interoperability; and directed query engines, a type of search engine designed to access resources on the deep Web that is being used at the Department of Energy. (LRW)

  4. Database of Novel and Emerging Adsorbent Materials

    National Institute of Standards and Technology Data Gateway

    SRD 205 NIST/ARPA-E Database of Novel and Emerging Adsorbent Materials (Web, free access)   The NIST/ARPA-E Database of Novel and Emerging Adsorbent Materials is a free, web-based catalog of adsorbent materials and measured adsorption properties of numerous materials obtained from article entries from the scientific literature. Search fields for the database include adsorbent material, adsorbate gas, experimental conditions (pressure, temperature), and bibliographic information (author, title, journal), and results from queries are provided as a list of articles matching the search parameters. The database also contains adsorption isotherms digitized from the cataloged articles, which can be compared visually online in the web application or exported for offline analysis.

  5. Search IQ

    NSDL National Science Digital Library

    Yet another in a large collection of sites on search engines, Search IQ is notable for two features. First, its collection of search engine reviews is rather extensive, covering far more than the usual dozen or so listed at most search engine review sites. Although rankings and full reviews are offered for only 17 engines, the individual and meta-search engine listings offer at least a sentence or two on many more. The other key section of the site is a fairly large directory of specialized search engines, organized by subject. Additional resources at the site include daily tips, tutorials and guides, and a listing of new search engines.

  6. Dark Matter direct searches

    NASA Astrophysics Data System (ADS)

    Gascon, J.

    2004-03-01

    Different techniques are currently competing in the direct search of Weakly Interacting Massive Particles (WIMP) dark matter, which consists in observing in the laboratory nuclear recoils due to impact of WIMPs from our galactic halo. As an introduction to this Dark Matter session, the experimental context, the key challenges and the different techniques will be briefly summarized. The performance achieved by low-temperature detectors confers to them a leading role in this domain.

  7. Image analysis tools and emerging algorithms for expression proteomics

    PubMed Central

    English, Jane A.; Lisacek, Frederique; Morris, Jeffrey S.; Yang, Guang-Zhong; Dunn, Michael J.

    2012-01-01

    Since their origins in academic endeavours in the 1970s, computational analysis tools have matured into a number of established commercial packages that underpin research in expression proteomics. In this paper we describe the image analysis pipeline for the established 2-D Gel Electrophoresis (2-DE) technique of protein separation, and by first covering signal analysis for Mass Spectrometry (MS), we also explain the current image analysis workflow for the emerging high-throughput ‘shotgun’ proteomics platform of Liquid Chromatography coupled to MS (LC/MS). The bioinformatics challenges for both methods are illustrated and compared, whilst existing commercial and academic packages and their workflows are described from both a user’s and a technical perspective. Attention is given to the importance of sound statistical treatment of the resultant quantifications in the search for differential expression. Despite wide availability of proteomics software, a number of challenges have yet to be overcome regarding algorithm accuracy, objectivity and automation, generally due to deterministic spot-centric approaches that discard information early in the pipeline, propagating errors. We review recent advances in signal and image analysis algorithms in 2-DE, MS, LC/MS and Imaging MS. Particular attention is given to wavelet techniques, automated image-based alignment and differential analysis in 2-DE, Bayesian peak mixture models and functional mixed modelling in MS, and group-wise consensus alignment methods for LC/MS. PMID:21046614

  8. ZBDD-Based Backtrack Search SAT Solver

    Microsoft Academic Search

    Fadi A. Aloul; Maher N. Mneimneh; Karem A. Sakallah

    2002-01-01

    We introduce a new approach to Boolean satisfiability that combines backtrack search techniques and zero-sup- pressed binary decision diagrams (ZBDDs). This approach implicitly represents satisfiability instances using ZBDDs, and performs search using an efficient implementation of unit propagation on the ZBDD structure. We describe how to perform backtrack search using ZBDDs as the underlying structure for clause representation. This methodology,

  9. EMERGENCY SERVICES Police, Fire, Medical

    E-print Network

    California at Santa Barbara, University of

    & Cell Phones ­ 911 UCSB Toll-Free Emergency Information Line ­ 888-488-8272 For Emergency Information#12;EMERGENCY SERVICES Emergency Police, Fire, Medical: From Campus Phones ­ 9-911 From Pay Phones

  10. Effect of advanced location methods on search and rescue duration for general aviation aircraft accidents in the contiguous United States

    NASA Astrophysics Data System (ADS)

    Wallace, Ryan J.

    The purpose of this study was to determine the impact of advanced search and rescue devices and techniques on search duration for general aviation aircraft crashes. The study assessed three categories of emergency locator transmitters, including 121.5 MHz, 406 MHz, and GPS-Assisted 406 MHz devices. The impact of the COSPAS-SARSAT organization ceasing satellite monitoring for 121.5 MHz ELTs in 2009 was factored into the study. Additionally, the effect of using radar forensic analysis and cellular phone forensic search methods were also assessed. The study's data was derived from an Air Force Rescue Coordination Center database and included 365 historical general aviation search and rescue missions conducted between 2006 and 2011. Highly skewed data was transformed to meet normality requirements for parametric testing. The significance of each ELT model was assessed using a combination of Brown-Forsythe Means Testing or Orthogonal Contrast Testing. ANOVA and Brown-Forsythe Means testing was used to evaluate cellular phone and radar forensic search methods. A Spearman's Rho test was used to determine if the use of multiple search methods produced an additive effect in search efficiency. Aircraft which utilized an Emergency Locator Transmitter resulted in a shorter search duration than those which did not use such devices. Aircraft utilizing GPS-Aided 406 MHz ELTs appeared to require less time to locate than if equipped with other ELT models, however, this assessment requires further study due to limited data. Aircraft equipped with 406 MHz ELTs required slightly less time to locate than aircraft equipped with older 121.5 MHz ELTs. The study found no substantial difference in the search durations for 121.5 MHz ELTs monitored by COSPAS-SARSAT verses those which were not. Significance testing revealed that the use of cellular phone forensic data and radar forensic data both resulted in substantially higher mission search durations. Some possible explanations for this finding are that these forensic methods are not employed early in search missions or were delayed until more conventional search means are exhausted. The study also found a positive correlation between the number search contributors used and mission duration, indicating that multiple search methods do not necessarily yield added efficiency.

  11. Emergent Quantum Mechanics and Emergent Symmetries

    SciTech Connect

    Hooft, Gerard 't [Institute for Theoretical Physics Utrecht University and Spinoza Institute Postbox 80.195 3508 TD Utrecht (Netherlands)

    2007-11-20

    Quantum mechanics is 'emergent' if a statistical treatment of large scale phenomena in a locally deterministic theory requires the use of quantum operators. These quantum operators may allow for symmetry transformations that are not present in the underlying deterministic system. Such theories allow for a natural explanation of the existence of gauge equivalence classes (gauge orbits), including the equivalence classes generated by general coordinate transformations. Thus, local gauge symmetries and general coordinate invariance could be emergent symmetries, and this might lead to new alleys towards understanding the flatness problem of the Universe.

  12. Access to emergency contraception

    Microsoft Academic Search

    James Trussell; Vanessa Duran; Tara Shochet; Kirsten Moore

    2000-01-01

    Objective: To evaluate access to emergency contraception among women seeking help from clinicians who registered to be listed on the Emergency Contraception Hotline (1-888-NOT-2-LATE, ie, 1-888-668-2528) and the Emergency Contraception Website (not-2-late.com).Methods: Two college-educated investigators posing as women who had a condom break the previous night called 200 providers to seek help.Results: Only 76% of attempts resulted in an appointment

  13. Update on emergency contraception

    Microsoft Academic Search

    Paul M. Fine

    2011-01-01

    Emergency contraception is a woman’s last chance to prevent unintended pregnancy. Ulipristal acetate, a selective progesterone\\u000a receptor modulator, when taken as a single 30 mg dose, is a new, safe and effective emergency contraceptive that can be used\\u000a from the first day and up to 5 days following unprotected intercourse. The older progesterone-only emergency contraceptive,\\u000a levonorgestrel, is taken as two

  14. Emergence and Adaptation

    Microsoft Academic Search

    Philippe Huneman

    2008-01-01

    I investigate the relationship between adaptation, as defined in evolutionary theory through natural selection, and the concept\\u000a of emergence. I argue that there is an essential correlation between the former, and “emergence” defined in the field of algorithmic\\u000a simulations. I first show that the computational concept of emergence (in terms of incompressible simulation) can be correlated\\u000a with a causal criterion

  15. The Emergency Department Setting

    Microsoft Academic Search

    Seth Powsner

    Consultants may be called to an emergency department for a variety of reasons. Most requests are like those from a general\\u000a hospital ward. However, two issues are notable: a broader definition of psychiatric emergencies and greater concern about patient rights. These issues stem from an emergency department’s lack of a buffer from its surrounding\\u000a community: patients come as they are,

  16. An approach to simulate the diagnostic behavior of operators under emergency situation of nuclear power plants

    SciTech Connect

    Cheon, S.W.; Sur, S.M.; Lee, Y.H.; Lee, J.W. [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)] [and others

    1996-11-01

    This paper describes an approach to model operator`s diagnostic behavior under emergency situation of nuclear power plants. The diagnostic model, which is an embedded module of a task simulation analyzer, SACOM, is based on a blackboard framework and uses four types of diagnostic agents which represent typical diagnostic strategies of operators; i.e., topographic search, symptomatic search, hypothesis-driven search and data-driven search. The model is currently being developed using a G2 expert system tool.

  17. Introduction to International Emergency Medicine

    Microsoft Academic Search

    Simon Kotlyar; Jeffrey L Arnold

    International emergency medicine (IEM), a subspecialty of emergency medicine (EM), is concerned with the development of emergency medical care in countries other than the US. Accordingly, IEM is involved with the education and the training of emergency care providers through the world, the development of emergency care systems, and the delivery of emergency services in areas of need. IEM is

  18. Emergency exercise methodology

    SciTech Connect

    Klimczak, C.A.

    1993-01-01

    Competence for proper response to hazardous materials emergencies is enhanced and effectively measured by exercises which test plans and procedures and validate training. Emergency exercises are most effective when realistic criteria is used and a sequence of events is followed. The scenario is developed from pre-determined exercise objectives based on hazard analyses, actual plans and procedures. The scenario should address findings from previous exercises and actual emergencies. Exercise rules establish the extent of play and address contingencies during the exercise. All exercise personnel are assigned roles as players, controllers or evaluators. These participants should receive specialized training in advance. A methodology for writing an emergency exercise plan will be detailed.

  19. Emergency exercise methodology

    SciTech Connect

    Klimczak, C.A.

    1993-03-01

    Competence for proper response to hazardous materials emergencies is enhanced and effectively measured by exercises which test plans and procedures and validate training. Emergency exercises are most effective when realistic criteria is used and a sequence of events is followed. The scenario is developed from pre-determined exercise objectives based on hazard analyses, actual plans and procedures. The scenario should address findings from previous exercises and actual emergencies. Exercise rules establish the extent of play and address contingencies during the exercise. All exercise personnel are assigned roles as players, controllers or evaluators. These participants should receive specialized training in advance. A methodology for writing an emergency exercise plan will be detailed.

  20. Exploring Machine Learning Techniques For Dynamic Modeling on Future Exascale Systems

    SciTech Connect

    Song, Shuaiwen; Tallent, Nathan R.; Vishnu, Abhinav

    2013-09-23

    Future exascale systems must be optimized for both power and performance at scale in order to achieve DOE’s goal of a sustained petaflop within 20 Megawatts by 2022 [1]. Massive parallelism of the future systems combined with complex memory hierarchies will form a barrier to efficient application and architecture design. These challenges are exacerbated with emerging complex architectures such as GPGPUs and Intel Xeon Phi as parallelism increases orders of magnitude and system power consumption can easily triple or quadruple. Therefore, we need techniques that can reduce the search space for optimization, isolate power-performance bottlenecks, identify root causes for software/hardware inefficiency, and effectively direct runtime scheduling.

  1. Emergent Quantum Mechanics and Emergent Symmetries

    Microsoft Academic Search

    Gerard't Hooft; Gerard t

    2007-01-01

    Quantum mechanics is ‘emergent’ if a statistical treatment of large scale phenomena in a locally deterministic theory requires the use of quantum operators. These quantum operators may allow for symmetry transformations that are not present in the underlying deterministic system. Such theories allow for a natural explanation of the existence of gauge equivalence classes (gauge orbits), including the equivalence classes

  2. Introduction to Hashing & Hashing Techniques Review of Searching Techniques

    E-print Network

    Razak, Saquib

    .80Al-Shahrani, Adel Saad 9707281.73Al-Awami, Louai Adnan Muhammad 9945931.66Al-Amer, Yousuf Jauwad 11986074Al-Shahrani, Adel Saad 5970728Al-Awami, Louai Adnan Muhammad 2994593Al-Amer, Yousuf Jauwad 1996321 Adel #12;7 Hash Tables · There are two types of Hash Tables: Open-addressed Hash Tables and Separate

  3. Controller Design via Nonsmooth Multidirectional Search

    Microsoft Academic Search

    Pierre Apkarian; Dominikus Noll

    2006-01-01

    We propose an algorithm which combines multidirectional search (MDS) with non- smooth optimization techniques to solve difficult problems in automatic control. Applications in- clude static and fixed-order output feedback controller design, simultaneous stabilization, H2\\/H?- synthesis, and much else. We show how to combine direct search techniques with nonsmooth descent steps in order to obtain convergence certificates in the presence of

  4. Low background techniques in XMASS

    SciTech Connect

    Takeda, Atsushi [Kamioka Observatory, ICRR, University of Tokyo, 456 Higashi-Mozumi, Kamioka-cho, Hida, Gifu, 506-1205 (Japan)

    2011-04-27

    The XMASS project aims to detect pp and {sup 7}Be solar neutrinos, neutrino-less double beta decay, and dark matter searches using ultra-pure liquid xenon. The first stage of XMASS project is concentrated on dark matter searches using 800 kg liquid xenon detector which requires low background and low threshold. Several techniques applied to XMASS detector for low background will be presented.

  5. Transportation Networks for Emergency Evacuations

    SciTech Connect

    Franzese, Oscar [ORNL; Liu, Cheng [ORNL

    2008-01-01

    Evacuation modeling systems (EMS) have been developed to facilitate the planning, analysis, and deployment of emergency evacuation of populations at risk. For any EMS, data such as road network maps, traffic control characteristics, and population distribution play critical roles in delineating emergency zones, estimating population at risk, and determining evacuation routes. There are situations in which it is possible to plan in advance for an emergency evacuation including, for example, an explosion at a chemical processing facility or a radiological accident at a nuclear plant. In these cases, if an accident or a terrorist attack were to happen, then the best evacuation plan for the prevailing network and weather conditions would be deployed. In other instances -for example, the derailment of a train transporting hazardous materials-, there may not be any previously developed plan to be implemented and decisions must be made ad-hoc on if and how to identify and proceed with the best course of action to minimize losses. Although both cases require as a starting point the development of a transportation network model of the area at risk, which must include road capacity and topology, in the latter the available time to generate this network is extremely limited. This time constraint precludes the use of any traditional data gathering methodology and the network generation process has to rely on the use of GIS and stochastic modeling techniques. The generation of these transportation networks in real time is the focus of this entry.

  6. Confidential Searches.

    ERIC Educational Resources Information Center

    Kenney, Linda Chion

    2003-01-01

    Will the stealth superintendent hunt in Cincinnati become tomorrow's standard approach? Search consultants and superintendents offer their views on how far confidentiality should go. Also includes a search firm's process for shielding identities and a confidentiality pledge. (MLF)

  7. USGS Emergency Response Resources

    USGS Publications Warehouse

    Bewley, Robert D.

    2011-01-01

    Every day, emergency responders are confronted with worldwide natural and manmade disasters, including earthquakes, floods, hurricanes, landslides, tsunami, volcanoes, wildfires, terrorist attacks, and accidental oil spills.The U.S. Geological Survey (USGS) is ready to coordinate the provisioning and deployment of USGS staff, equipment, geospatial data, products, and services in support of national emergency response requirements.

  8. EMERGENCY PLANNING AND PROCEDURES

    E-print Network

    Cavusoglu, Cenk

    ESCORT AND SAFE RIDES CRIME PREVENTION FIRE PREVENTION AND LIFE SAFETY EDUCATION EMERGENCY MANAGEMENT 20 ELEVATOR EMERGENCY 21 GENERAL CRIME PREVENTION 22 REPORTING A CRIMINAL INCIDENT 23 TERRORISM 24 RELATIONS 34 CYBER SECURITY TIPS 35 #12;#12;STUDENT RESPONSIBILITIES Individual students play a vital role

  9. Avoiding medical emergencies.

    PubMed

    Omar, Y

    2013-03-01

    Medical emergencies can occur at any time in any location. This article and associated presentation at the forthcoming British Dental Conference Exhibition provide key advice on avoiding medical emergencies in dental practice; including advice on risk assessing all patients, understanding the importance of a checklist, and using a National Early Warning Score (NEWS). PMID:23470404

  10. Emergency Medical Technician.

    ERIC Educational Resources Information Center

    Ohio State Univ., Columbus. Center on Education and Training for Employment.

    This document, which is designed for use in developing a tech prep competency profile for the occupation of emergency medical technician, lists technical competencies and competency builders for 18 units pertinent to the health technologies cluster in general and 4 units specific to the occupation of emergency medical technician. The following…

  11. Emergency Medical Treatment Required

    E-print Network

    Sura, Philip

    or Chemical Exposure Occurs * Laboratory Employee Faculty, Post Doc, Technician, Graduate Student (whenEmergency Medical Treatment Required Non-Emergency Medical Treatment Required If possible, get help present if possible AmeriSys will complete the "First Report of Injury or Illness" and authorize medical

  12. Lifelong Learning: Emergent Enactments

    ERIC Educational Resources Information Center

    Edwards, Richard

    2010-01-01

    This article represents four emergences through which to explore the significance of lifelong learning. Drawing in particular on complexity theory and actor-network theory, it seeks to develop an understanding of the reductions and emergences, and purifications and translations to which lifelong learning is subject. To do this, the article also…

  13. Grounds Building Emergency Instructions

    E-print Network

    de Leon, Alex R.

    Grounds Building Emergency Instructions In the event of an EMERGENCY dial 403-220-5333 for Campus and unable to safely get inside, lie in a ditch or low-lying area or crouch near a building Armed Assailant DO NOT TOUCH, MOVE, OPEN OR DISTURB THE ITEM Turn off all wireless devices as they could

  14. School Emergency Planning Guide.

    ERIC Educational Resources Information Center

    Benedetto, Harry J.

    This guide was prepared to assist Pennsylvania schools and communities in the development of comprehensive emergency plans. Procedures for identifying and responding to potential community and school emergency situations are presented. A plan for developing and organizing mass care centers utilizing school and community facilities and resources is…

  15. Radiology in emergency medicine

    SciTech Connect

    Levy, R.; Barsan, W.G.

    1986-01-01

    This book gives a discussion of radiologic modalities currently being used in emergency situations. Radiographs, echocardiographs, radionuclide scans and CT scans are systematically analyzed and evaluated to provide a step-by-step diagnostic process for emergency physicians to follow when a radiologist is not present.

  16. Metor Search

    NSDL National Science Digital Library

    Here is another metasearch engine worth a spin. In addition to the typical choices of search engines and directories, Metor Search also offers specialized searching by nineteen additional categories, including cars, downloads, news, games, recipes, and travel, among others. Some of these only index a few engines, but in each, users have the option to select specific engines and set a timeout span. Search returns, which include a short description culled from the page, appeared to be fairly relevant in test runs.

  17. Quantization of Emergent Gravity

    E-print Network

    Hyun Seok Yang

    2014-12-24

    Emergent gravity is based on a novel form of the equivalence principle known as the Darboux theorem or the Moser lemma in symplectic geometry stating that the electromagnetic force can always be eliminated by a local coordinate transformation as far as spacetime admits a symplectic structure, in other words, a microscopic spacetime becomes noncommutative (NC). If gravity emerges from U(1) gauge theory on NC spacetime, this picture of emergent gravity suggests a completely new quantization scheme where quantum gravity is defined by quantizing spacetime itself, leading to a dynamical NC spacetime. Therefore the quantization of emergent gravity is radically different from the conventional approach trying to quantize a phase space of metric fields. This approach for quantum gravity allows a background independent formulation where spacetime as well as matter fields is equally emergent from a universal vacuum of quantum gravity.

  18. FaSet: A Set Theory Model for Faceted Search

    Microsoft Academic Search

    Dario Bonino; Fulvio Corno; Laura Farinetti

    2009-01-01

    Faceted classification is a technique originated and refined in the library science field, that recently gained a lot of attention for creating efficient search interfaces for web databases. Faceted search requires the definition of a formal representation model, a search algorithm and a responsive user interface. This paper proposes FaSet, a representation model and search algorithm supporting the implementation of

  19. AN INVESTIGATION OF VARIABLE NEIGHBOURHOOD SEARCH FOR UNIVERSITY COURSE TIMETABLING

    E-print Network

    McCollum, Barry

    AN INVESTIGATION OF VARIABLE NEIGHBOURHOOD SEARCH FOR UNIVERSITY COURSE TIMETABLING SALWANI monte carlo acceptance criteria. This heuristic search approach is based on random-descent local search-of-the-art techniques from the literature. Key words: Course Timetabling, Variable Neighbourhood Search #12

  20. Learning User Interaction Models for Predicting Web Search Result Preferences

    E-print Network

    Dumais, Susan

    , and maintenance. We present a real-world study of modeling the behavior of web search users to predict web search to obtain. At the same time, millions of people interact daily with web search engines, providing valuable, it is not clear whether these techniques will work for general real-world web search. A significant distinction

  1. A Task-Based Evaluation of an Aggregated Search Interface

    E-print Network

    Lalmas, Mounia

    . Federated search, distributed information retrieval, and metasearch engines are the techniques that aimA Task-Based Evaluation of an Aggregated Search Interface Shanu Sushmita, Hideo Joho, and Mounia that evaluated the effective- ness of an aggregated search interface in the context of non-navigational search

  2. Search Engines

    Microsoft Academic Search

    Rustam Al-Shahi

    2001-01-01

    If you want to find anything on the World Wide Web (WWW), you need to know about search engines. Hitherto, both Internet sceptics and ‘technophobes’ have criticised the various search engines for having the same failings as the WWW itself: that the overall quality and relevance of sites are poor. After all, what search engines retrieve for you is merely

  3. Dewey Searches!

    ERIC Educational Resources Information Center

    School Library Media Activities Monthly, 2000

    2000-01-01

    Describes an activity for young children that helps them conduct subject searches using an automated system that allows customization of access to a library's collection. Explains a timed game that makes use of subject searching and word searching on the topic of dinosaurs. (LRW)

  4. Neighborhood Portfolio Approach for Local Search Applied to Timetabling Problems

    Microsoft Academic Search

    Luca Di Gaspero; Andrea Schaerf

    2006-01-01

    Abstract A recent trend in local search concerns the exploitation of several di erent neighborhoods so as to increase the ability of the algorithm to navigate the search space. In this work we investigate a hybridization technique, that we call Neighborhood Portfolio Ap-proach, that consists in the interleave of local search techniques based on various combinations of neighborhoods. In particular,

  5. Sensor-Based Data Storage for Search and Rescue Sanem Sariel Talay1

    E-print Network

    Talay, Sanem Sarýel

    , according to Federal Emergency Management Agency's (FEMA) search and rescue guidelines [3], oneSensor-Based Data Storage for Search and Rescue Sanem Sariel Talay1 , Esin Ergen 2 , Gurhan Avdan1 available and easily accessible to search and rescue team members following an earthquake. The Search

  6. Search Advanced Search Home > News

    E-print Network

    Rogers, John A.

    -resolution, real-time display of the pigs' pulsing cardiac tissues - something never before possible. "We believeSearch Advanced Search Home > News [-] Text [+] Email Print tweet 0 tweets RSS Feeds Newsletters

  7. Emerging communication technologies in emergency medical services

    Microsoft Academic Search

    Richard C. Hunt

    2002-01-01

    Advances in communication technologies are changing the face of emergency medical services (EMS). Two communication technologies in particular—cellular-enhanced 9-1-1 service and automatic crash notification (ACN)—will have a considerable impact on EMS. Although enhanced 9-1-1 service from land-line phones is now available in nearly every EMS system across the country, enhanced 9-1-1 service from cell phones currently does not exist. With

  8. Recommended Procedures for Handling Emergency Illnesses and Accidents at School.

    ERIC Educational Resources Information Center

    North Dakota State Dept. of Health, Bismarck.

    Recommended procedures for handling emergency illnesses and accidents are provided in this guide for school personnel prepared by the North Dakota State Department of Health. Following five general recommendations for steps to take in emergency situations, advice and techniques are given for handling: nose bleeds; abdominal pain; toothaches and…

  9. Current Trends in Gamma Ray Detection for Radiological Emergency Response

    SciTech Connect

    Mukhopadhyay, S., Guss, P., Maurer, R.

    2011-08-18

    Passive and active detection of gamma rays from shielded radioactive materials, including special nuclear materials, is an important task for any radiological emergency response organization. This article reports on the current trends and status of gamma radiation detection objectives and measurement techniques as applied to nonproliferation and radiological emergencies.

  10. A Digital Technique for Art Authentication

    E-print Network

    Rockmore, Dan

    for detecting art forgeries emerged. Even today, the early techniques for authenticationremain preA Digital Technique for Art Authentication Siwei Lyu1 , Daniel Rockmore1,2 , and Hany Farid1 a computational technique for authenticating works of art, specifically, paintings and drawings, from high

  11. Energy Efficiency: Information Sources for New and Emerging Technologies

    SciTech Connect

    Parker, Steven A.

    2007-12-31

    The purpose of this article is to share a list of useful organizations that provide reliable information on new and emerging energy-efficient technologies based on research and experience. Experienced energy managers may use the information provided by these organizations to enhance their knowledge and understanding, thereby improving their energy management programs. The scope is limited to publicly-available and open-membership organizations that deal with new and emerging, energy-efficient technologies, strategies, and products. The sources identified should not be considered exhaustive but rather a first step “go to” list suggested by the author when searching for useful information on new and emerging energy-efficient technologies.

  12. Emerging from Hjort's Shadow

    Microsoft Academic Search

    Edward D. Houde

    2008-01-01

    Early in the 20th century, Johan Hjort developed compelling arguments and hypotheses to explain recruitment variability that became dominant for more than 75 years. A cautious emergence from Hjort's shadow began late in the 20th century. Hjort's \\

  13. Emerging topics in FXTAS.

    PubMed

    Hall, Deborah A; Birch, Rachael C; Anheim, Mathieu; Jønch, Aia E; Pintado, Elizabeth; O'Keefe, Joanne; Trollor, Julian N; Stebbins, Glenn T; Hagerman, Randi J; Fahn, Stanley; Berry-Kravis, Elizabeth; Leehey, Maureen A

    2014-01-01

    This paper summarizes key emerging issues in fragile X-associated tremor/ataxia syndrome (FXTAS) as presented at the First International Conference on the FMR1 Premutation: Basic Mechanisms & Clinical Involvement in 2013. PMID:25642984

  14. Emerging topics in FXTAS

    PubMed Central

    2014-01-01

    This paper summarizes key emerging issues in fragile X-associated tremor/ataxia syndrome (FXTAS) as presented at the First International Conference on the FMR1 Premutation: Basic Mechanisms & Clinical Involvement in 2013. PMID:25642984

  15. Collection Ranking and Selection for Federated Entity Search

    E-print Network

    Nørvåg, Kjetil

    sources--some of which may not be crawleable at all--distributed information retrieval (DIR) (or federated search) techniques directly pass the query to the search interface of multiple, suitable collections

  16. MEDICAL AND EMERGENCY INFORMATION FORM

    E-print Network

    Rothman, Daniel

    MEDICAL AND EMERGENCY INFORMATION FORM Field Trip Name: __________________________ Trip Dates from information about your medical coverage that might be useful. Emergency Contact Information Emergency Personal;___________________________________________________________________________________ Please return completed form to the trip coordinator two weeks prior to departure. Known Medical

  17. The Emergence of Public Health Open Educational Resources

    ERIC Educational Resources Information Center

    Angell, C.; Hartwell, H.; Hemingway, A.

    2011-01-01

    Purpose: The purpose of this paper is to identify key concepts in the literature relating to the release of open educational resources (OER), with specific reference to the emergence of public health OER. Design/methodology/approach: A review of the literature relating to the development of OER was followed by an online search for OER literature…

  18. Emergency Preparedness--Beyond the Written Plan. A Case Study.

    ERIC Educational Resources Information Center

    Rozanski, Maryann

    1996-01-01

    A staff development program at California State University at Long Beach trains faculty and other personnel to participate in earthquake-related search and rescue operations on campus if needed. Vendor-trained staff members prepared a campus training program in emergency operations, fire suppression and protection, casualty assessment, urban…

  19. Soft computing: the convergence of emerging reasoning technologies

    Microsoft Academic Search

    Piero P. Bonissone

    1997-01-01

    The term Soft Computing (SC) represents the combination of emerging problem-solving technologies such as Fuzzy Logic (FL), Probabilistic Reasoning (PR), Neural Networks (NNs), and Genetic Algorithms (GAs). Each of these technologies provide us with complementary reasoning and searching methods to solve complex, real-world problems. After a brief description of each of these technologies, we will analyze some of their most

  20. Emergency medical services providers and weapons in the prehospital setting

    Microsoft Academic Search

    Todd W. Thomsen; Assaad J. Sayah; Marc Eckstein; H. Range Hutson

    2000-01-01

    Objectives. To investigate emergency medical services (EMS) providers' experience with weapons encountered while working, and evaluate the training they have received regarding searching for and confiscating weapons in the field. Methods. This was a descriptive, cross-sectional survey anonymously completed by a convenience sample of EMS providers in the metropolitan Boston and Los Angeles (LA) areas. Results. Of 2,672 surveys distributed,

  1. Search Sites

    NSDL National Science Digital Library

    Sirapyan, Nancy.

    This new report from PC Magazine reviews and rates fifteen of the most popular search engines. The report includes brief reviews of each engine; a scorecard rating the engines on relevancy, query customization, duplicate and dead link elimination, and anticipatory results; and an Editor's Choice of the three best engines for directory searches, research, and all-purpose searches. While quite brief and containing little new information for experienced users, newer users may find the report useful.

  2. Raging Search

    NSDL National Science Digital Library

    Another search engine!! Another search engine? Yes, yet another Web search engine has come online, but this one isn't just business as usual. For one thing, there are no graphics, no banner ads, and no fancy portal features, so Raging Search loads very quickly. Another thing that makes it stand out is the ability to customize various parameters like the number of results displayed per page or the amount of detail returned for each result, and have those preferences "stick," so users need not reset them every time they enter the site. Also through this customization interface, users can select the languages of resources they want to search for (including support for various non-English character sets) and opt to include a "translated version" link along with each search result. And last, but certainly not least, all of the above runs atop an AltaVista search engine, consistently rated one of the best search tools on the Web, enhanced with Google-style link analysis technology to help identify the most useful sites. Overall, if you're serious about tracking something down on the Web, then Raging Search is definitely worth a look.

  3. Next-generation emergency response robots

    NASA Astrophysics Data System (ADS)

    Buzan, Forrest; Paul, George; Dunten, Seth; Kennedy, William; Dietsch, Jeanne A.

    2004-09-01

    As reported by Blitch, current Search and Rescue robots have proven inadequate in the field. Shortfalls in mobility include: inadequate relationship between traction and drag, inadequate self-righting, inadequate sensor protection and too many protrusions to snag. Because autonomous navigation is often impossible but tele-operation may be difficult, sliding autonomy is critical. In addition, next generation SR robots need plug-n-play sensor options and modular cargo holds to deliver daughter-bots or other specialized rescue equipment. Finally, dust and smoke have caused both sensors and robots to fail in the field. Many of the needs of Search and Rescue teams are shared by all Emergency Response robots: EOD, SWAT, HazMat and other law enforcement officers. We discuss how next-generation designs solve many of the problems currently facing ER robots.

  4. Emergent nontrivial lattices for topological insulators

    NASA Astrophysics Data System (ADS)

    Dutta, O.; Przysie?na, A.; Lewenstein, M.

    2014-04-01

    Materials with nontrivial lattice geometries allow for the creation of exotic states of matter like topologically insulating states. Therefore searching for such materials is an important aspect of current research in solid-state physics. In the field of ultracold gases there are ongoing studies aiming to create nontrivial lattices using optical means. In this paper we study two species of fermions trapped in a square optical lattice and show how nontrivial lattices can emerge due to strong interaction between atoms. We theoretically investigate regimes of tunable parameters in which such self-assembly may take place and describe the necessary experimental conditions. Moreover, we discuss the possibility of such emergent lattices hosting topologically insulating states.

  5. Search for standard model Higgs boson production in association with a W boson using a matrix element technique at CDF in pp? collisions at ?s=1.96??TeV

    E-print Network

    Gomez-Ceballos, Guillelmo

    This paper presents a search for standard model Higgs boson production in association with a W boson using events recorded by the CDF experiment in a data set corresponding to an integrated luminosity of 5.6??fb[superscript ...

  6. Improving protein structure prediction with model-based search

    Microsoft Academic Search

    T. J. Brunette; Oliver Brock

    2005-01-01

    Motivation: De novo protein structure prediction can be formu- lated as search in a high-dimensional space. One of the most frequently used computational tools to solve such search pro- blems is the Monte Carlo method. We present a novel search technique, called model-based search. This method samples the high-dimensional search space to build an approximate model of the underlying function.

  7. Carburization of emerging materials

    SciTech Connect

    Milner, R.

    1999-07-01

    The carburization resistance of two emerging alloys for ethylene pyrolysis service was investigated and compared with that of two existing alloys. One of the emerging alloys, alloy U, contained about 40% chromium and 50% nickel by weight and was similar to existing alloys in terms of microstructure and strengthening mechanisms. The other emerging alloy, known as ExoAlloy , was based on the Ni{sub 3}Al nickel aluminide system. Nickel aluminides have outstanding creep rupture strengths compared to other cast alloys. Their carburization resistance, however, has not yet been compared to standard alloys in a manner that is consistent with standard industrial test methods. In this paper a comparison is made of the carburization resistance of the two emerging and two existing materials. In addition, a brief analysis of the expected furnace life was made, based on both the strength and carburization resistance of the four materials. It was found that one emerging material, alloy U, would provide an exceptional increase in either the furnace life or the operating temperature of the furnace coil. The nickel aluminide alloy would also be expected to provide increased furnace coil life, but does not allow a large increase in furnace operating temperature.

  8. LPG emergency response training

    SciTech Connect

    Dix, R.B. [Amoco Oil Co., Waukesha, WI (United States); Newton, B. [Amoco Oil Co., Chicago, IL (United States)

    1995-12-31

    ROVER (Roll Over Vehicle for Emergency Response) is a specially designed and constructed unit built to allow emergency response personnel and LPG industry employees to get ``up close and personal`` with the type of equipment used for the highway transportation of liquefied petroleum gas (LPG). This trailer was constructed to simulate an MC 331 LPG trailer. It has all the valves, piping and emergency fittings found on highway tankers. What makes this unit different is that it rolls over and opens up to allow program attendees to climb inside the trailer and see it in a way they have never seen one before. The half-day training session is composed of a classroom portion during which attendees will participate in a discussion of hazardous material safety, cargo tank identification and construction. The specific properties of LPG, and the correct procedures for dealing with an LPG emergency. Attendees will then move outside to ROVER, where they will participate in a walkaround inspection of the rolled over unit. All fittings and piping will be representative of both modern and older equipment. Participants will also be able to climb inside the unit through a specially constructed hatch to view cutaway valves and interior construction. While the possibility of an LPG emergency remains remote, ROVER represents Amoco`s continuing commitment to community, education, and safety.

  9. Emerging Supplements in Sports

    PubMed Central

    Mason, Bryan C.; Lavallee, Mark E.

    2012-01-01

    Context: Nutritional supplements advertised as ergogenic are commonly used by athletes at all levels. Health care professionals have an opportunity and responsibility to counsel athletes concerning the safety and efficacy of supplements on the market. Evidence Acquisition: An Internet search of common fitness and bodybuilding sites was performed to identify supplement promotions. A search of MEDLINE (2000–August, 2011) was performed using the most commonly identified supplements, including glutamine, choline, methoxyisoflavone, quercetin, zinc/magnesium aspartate, and nitric oxide. The search terms supplement, ergogenic aid, and performance were also used. Results: Six common and newer supplements were identified, including glutamine, choline, methoxyisoflavone, quercetin, zinc/magnesium aspartate, and nitric oxide. Conclusions: Controlled studies have not determined the effects of these supplements on performance in athletes. Scientific evidence is not available to support the use of these supplements for performance enhancement. PMID:23016081

  10. Emergency Victim Care. A Training Manual for Emergency Medical Technicians. Module 5. CPR, Oxygen Therapy. Revised.

    ERIC Educational Resources Information Center

    Ohio State Dept. of Education, Columbus. Div. of Vocational Education.

    This student manual, the fifth in a set of 14 modules, is designed to train emergency medical technicians (EMTs) in Ohio. The module contains two sections covering the following course content; cardiopulmonary resuscitation (CPR) (including artificial ventilation, foreign body obstructions, adjunctive equipment and special techniques, artificial…

  11. Emergence and Phase Transitions

    NASA Astrophysics Data System (ADS)

    Sikkema, Arnold

    2006-05-01

    Phase transitions are well defined in physics through concepts such as spontaneous symmetry breaking, order parameter, entropy, and critical exponents. But emergence --- also exhibiting whole-part relations (such as top-down influence), unpredictability, and insensitivity to microscopic detail --- is a loosely-defined concept being used in many disciplines, particularly in psychology, biology, philosophy, as well as in physics[1,2]. I will review the concepts of emergence as used in the various fields and consider the extent to which the methods of phase transitions can clarify the usefulness of the concept of emergence both within the discipline of physics and beyond.1. Robert B. Laughlin, A Different Universe: Reinventing Physics from the Bottom Down (New York: Basic Books, 2005). 2. George F.R. Ellis, ``Physics and the Real World'', Physics Today, vol. 58, no. 7 (July 2005) pp. 49-54.

  12. Hanford Emergency Response Plan

    SciTech Connect

    Wagoner, J.D.

    1994-04-01

    The Hanford Emergency Response Plan for the US Department of Energy (DOE), Richland Operations Office (RL), incorporates into one document an overview of the emergency management program for the Hanford Site. The program has been developed in accordance with DOE orders, and state and federal regulations to protect worker and public health and safety and the environment in the event of an emergency at or affecting the Hanford Site. This plan provides a description of how the Hanford Site will implement the provisions of DOE 5500 series and other applicable Orders in terms of overall policies and concept of operations. It should be used as the basis, along with DOE Orders, for the development of specific contractor and RL implementing procedures.

  13. Emergent geometry of membranes

    E-print Network

    de Badyn, Mathias Hudoba; Sabella-Garnier, Philippe; Yeh, Ken Huai-Che

    2015-01-01

    In work arXiv:1204.2788, a surface embedded in flat $R^3$ is associated to any three hermitian matrices. We study this emergent surface when the matrices are large, by constructing coherent states corresponding to points in the emergent geometry. We find the original matrices determine not only shape of the emergent surface, but also a unique Poisson structure. We prove that commutators of matrix operators correspond to Poisson brackets. Through our construction, we can realize arbitrary noncommutative membranes: for example, we examine a round sphere with a non-spherically symmetric Poisson structure. We also give a natural construction for a noncommutative torus embedded in $R^3$. Finally, we make remarks about area and find matrix equations for minimal area surfaces.

  14. The burden of behavioral emergencies: need for specialist emergency services

    Microsoft Academic Search

    Pandey Vibha; Sahoo Saddichha

    2010-01-01

    Behavioral emergencies constitute an important component of medical emergencies. Psychiatric emergency services, which handle\\u000a the bulk of behavioral emergencies, are inadequate to meet the burden. Strategies to deal with them are also hampered by the\\u000a lack of adequate research and availability of data. Since behavioral emergencies may present differently in different groups,\\u000a requiring differing management, consensus guidelines need to be

  15. Repeated use of hormonal emergency contraception by younger women in the UK

    Microsoft Academic Search

    Sam Rowlands; Hassy Devalia; Ross Lawrenson; John Logie; Bernard Ineichen

    2000-01-01

    A cohort of women aged 14–29 in 1993 was identified from the General Practice Research Database and followed up for a period of 4 years. Patient files were searched for evidence of use of emergency contraception and regular contraception. Of the 95 007 women, 15 105 (16%) had received emergency contraception during the study period (an average of 5% per

  16. Decision support in nuclear emergencies.

    PubMed

    Papamichail, K N; French, S

    2000-01-01

    In a nuclear emergency, protective actions such as evacuation, sheltering and food bans can be taken to mitigate the consequences of any release of radioactivity. Within the RODOS project, an evaluation framework has been developed to support the assessment of the costs and benefits of potential actions. In order to help the decision makers gain insight into the decision problem and clarify their preferences, guidance can be given in three stages. First, the search of feasible portfolios of protective actions is seen as a constraint satisfaction problem; only those portfolios that satisfy constraints depending on factors such as feasibility are worth further evaluation. Second, the portfolios are ranked based on their consequences and the preferences of the decision makers using either a multi-attribute value or utility function. Third, a natural language report explaining the ranking is produced to help the decision makers gain insight into the decision problem and refine the decision parameters. An intelligent decision system has been developed to demonstrate the feasibility of the framework. PMID:10677668

  17. NASA's Search-and-Rescue Technology - Duration: 37 seconds.

    NASA Video Gallery

    This animation depicts the next-generation search and rescue system, the DASS. Under this system, instruments used to relay emergency beacon signals will be installed on GPS satellites. When one em...

  18. [Endocrine emergencies during pregnancy].

    PubMed

    Harbeck, B; Schütt, M; Sayk, F

    2012-03-01

    Endocrine emergencies during pregnancy can become life-threatening for both mother and fetus. In addition to some pregnancy-linked endocrine disorders, several pre-existing forms of endocrinopathy, such as Grave's disease, type 1 diabetes and adrenal insufficiency might deteriorate acutely during pregnancy. Early diagnosis and management are challenging because the classical symptoms are often modified by pregnancy. Laboratory tests are subject to altered physiological ranges and pharmacological options are limited while therapeutic goals are stricter than in the non-pregnant patient. This article focuses on endocrine emergencies complicating pregnancy. PMID:22349529

  19. Emergency medicine in Southern Brazil

    Microsoft Academic Search

    Ross D. Tannebaum; Jeffrey L. Arnold; Armando De Negri Filho; Viviane S. Spadoni

    2001-01-01

    Emergency medicine is developing rapidly in southern Brazil, where elements of both the Franco-German and the Anglo-American models of emergency care are in place, creating a uniquely Brazilian approach to emergency care. Although emergency medical services (EMS) in Brazil have been directly influenced by the French mobile EMS (SAMU) system, with physicians dispatched by ambulances to the scenes of medical

  20. A hybrid search algorithm for swarm robots searching in an unknown environment.

    PubMed

    Li, Shoutao; Li, Lina; Lee, Gordon; Zhang, Hao

    2014-01-01

    This paper proposes a novel method to improve the efficiency of a swarm of robots searching in an unknown environment. The approach focuses on the process of feeding and individual coordination characteristics inspired by the foraging behavior in nature. A predatory strategy was used for searching; hence, this hybrid approach integrated a random search technique with a dynamic particle swarm optimization (DPSO) search algorithm. If a search robot could not find any target information, it used a random search algorithm for a global search. If the robot found any target information in a region, the DPSO search algorithm was used for a local search. This particle swarm optimization search algorithm is dynamic as all the parameters in the algorithm are refreshed synchronously through a communication mechanism until the robots find the target position, after which, the robots fall back to a random searching mode. Thus, in this searching strategy, the robots alternated between two searching algorithms until the whole area was covered. During the searching process, the robots used a local communication mechanism to share map information and DPSO parameters to reduce the communication burden and overcome hardware limitations. If the search area is very large, search efficiency may be greatly reduced if only one robot searches an entire region given the limited resources available and time constraints. In this research we divided the entire search area into several subregions, selected a target utility function to determine which subregion should be initially searched and thereby reduced the residence time of the target to improve search efficiency. PMID:25386855

  1. Camelpox, an emerging orthopox viral disease.

    PubMed

    Balamurugan, Vinayagamurthy; Venkatesan, Gnanavel; Bhanuprakash, Veerakyathappa; Singh, Raj Kumar

    2013-12-01

    Camelpox is considered as emerging public health problem during this decade due to increased reported cases and outbreaks in camels. Camelpox is a contagious, often sporadic, and notifiable skin disease of camelids and is socio-economically significant as it incurs considerable loss in terms of morbidity, mortality, loss of weight and reduction in milk yield and confined to camel-rearing countries. The causative agent, camelpox virus (CMLV) is genetically closely related to variola virus and has gained much attention from researchers due to its recent emergence in human. The virus carrying genes responsible for host immune evasion mechanisms owing to the threat posed by potential bio-warfare agents. Although the disease can be diagnosed based on clinical features, the similar confounding skin lesions necessitate identification, detection and differentiation of the CMLV by molecular techniques. Vaccines are available in some countries and the available live attenuated vaccine provides long-lasting immunity. Further, novel highly sensitive and specific techniques would be useful in the identification of emerging and re-emerging virus, thereby therapeutic, prophylactic, preventive measures would be applied in time to curtail further spread of camelpox like other zoonotic diseases. This review provide overview of the camelpox particularly on its epidemiology, pathogenesis and biology of the disease, diagnostic approaches and control measures. PMID:24426291

  2. Analysis techniques

    NASA Technical Reports Server (NTRS)

    Chelton, D.

    1983-01-01

    Analysis techniques for the sea surface temperature (SST) intercomparison were discussed. Systematic differences between various measurement techniques were identified and examined. This in turn might reveal areas for needed improvement in the SST retrieval algorithms or, at the very least, a clearer understanding of the limitations of each sensor.

  3. Using Pattern Search Methods for Surface Structure Determination of Nanomaterials

    E-print Network

    Lee, Jason R.

    Using Pattern Search Methods for Surface Structure Determination of Nanomaterials Zhengji Zhao High, especially in the case of nanomaterials. One of the most effective techniques for surface structure

  4. Reconfigurable Search Engine for Exploiting Search Knowledge

    Microsoft Academic Search

    Koji Zettsu; Katsumi Tanaka

    2006-01-01

    We propose an approach for sharing and exploiting search knowledge (i.e., search skills or know-how) throughout a community of users. This is achieved by making a search process reconfigurable according to the search knowledge. We define the following categories of software components comprising a search process: information source, retrieval, analysis, and cataloging. We are able to develop this search process

  5. Emerging memory devices

    Microsoft Academic Search

    Kosmas Galatsis; Kang Wang; Youssry Botros; Yang Yang; Ya-Hong Xie; J. F. Stoddart; R. B. Kaner; Cengiz Ozhan; Jianlin Liu; Mihri Ozkan; Chongwu Zhou; Ki Wook Kim

    2006-01-01

    Each memory device presented has its unique range of advantages and challenges. DRAM and FLASH have radically different characteristics; hence, they are used for different applications. Accordingly, the search for memory devices beyond CMOS comes with an important caveat: different memory for different applications. FENA's research path will continue to focus on improving our presented memory devices, and integrating with

  6. Role of Recipient-site Preparation Techniques and Post-operative Wound Dressing in the Surgical Management of Vitiligo

    PubMed Central

    Al-Hadidi, Nour; Griffith, James L; Al-Jamal, Mohammed S; Hamzavi, Iltefat

    2015-01-01

    Vitiligo is an acquired skin disorder characterized by the destruction of melanocytes resulting in achromic macules and patches involving the affected skin. Multiple methods of treatments have emerged to manage vitiligo, including medical and surgical techniques. Among the surgical techniques described in the management of vitiligo are minipunch grafting, split-thickness skin grafting, hair follicle transplantation, suction blister grafting, and cultured and non-cultured autologous melanocyte transplantation. However, prior to grafting optimal recipient-site preparation is needed for graft survival and successful repigmentation outcomes. Similarly, post-operative care of the recipient site is vital to yielding a viable graft irrespective of the transplantation technique employed. This article reviews the multiple methods employed to prepare the recipient site in vitiligo surgeries and the post-surgical conditions which optimize graft viability. A pubmed search was conducted utilizing the key words listed below.

  7. EMERGENCY RESPONSE SUPPORT

    EPA Science Inventory

    The emergency response program provides trained personnel and mobile and fixed laboratory resources to address radiological incidents or events that result in potential or actual radiation exposure of the public or environment. The primary product of the program is high quality,...

  8. EMERGENCY INSTRUCTIONS SAFETY PROCEDURES

    E-print Network

    Spence, Harlan Ernest

    -8400 OCCUPATIONALAND ENvIRONMENTAL MEDICINE ­ NON-EMERGENCY #12;ELECTRICAL SAFETY Electrical devices must be properly ELECTRICAL SAFETY/CLINICAL ENGINEERING ELECTRICAL SAFETY/CLINICAL ENGINEERING #12;ELECTRICAL SAFETYEMERGENCY INSTRUCTIONS AND SAFETY PROCEDURES Revised January 2010 BU Boston University Medical

  9. Emerging geothermal energy technologies

    Microsoft Academic Search

    I. W. Johnston; S. Colls

    2011-01-01

    Geothermal energy, whether as a source of electricity or to heat or cool buildings, has an enormous potential as a renewable energy source. This paper presents a broad overview of geothermal energy, with a focus on the emerging technologies of Enhanced Geothermal Systems (EGS) and Ground Source Heat Pumps (GSHPs). EGS and GSHP systems are important because of their potential

  10. An emergency survival suit

    NASA Technical Reports Server (NTRS)

    Curtis, D. L.

    1972-01-01

    A thermally insulative inflatable garment designed specifically as a lightweight low storage volume emergency suit for subzero weather survival is reported. Testing confirms that the inflatable suit design satisfies the objectives for a subject standing at rest with environmental temperatures down to -450 F if the garment is inflated with Freon.

  11. ACTIVESHOOTER CWRU EMERGENCY PROCEDURES

    E-print Network

    Cavusoglu, Cenk

    to not evacuate the secure room. - Lock the door. - Cover any windows - Tie down the door, if possible, using gunfire comes through it - Silence or place cell phones on vibrate - Once secured, do not open the door and Escorts (216) 368 - 3000 EMERGENCIES dial x 3333 or 9-9-1-1 from campus phone ACTIVE SHOOTER PART 1 of 4

  12. Vaccines for emerging infections.

    PubMed

    Marano, N; Rupprecht, C; Regnery, R

    2007-04-01

    Emerging infectious diseases represent a grave threat to animal and human populations in terms of their impact on global health, agriculture and the economy. Vaccines developed for emerging infections in animals can protect animal health and prevent transmission of zoonotic diseases to humans. Examples in this paper illustrate how industry and public health can collaborate to develop a vaccine to prevent an emerging disease in horses (West Nile virus vaccine), how poultry vaccination can protect animals and prevent transmission to people (avian influenza vaccine), how regulatory changes can pave the way for vaccines that will control the carrier state in animals and thus prevent infection in humans (Bartonella henselae vaccine in cats) and how novel technologies could be applied to vaccinate wildlife reservoir species for rabies. Stemming from the realisation that zoonotic diseases are the predominant source of human emerging infectious diseases, it behoves academic, public health, and animal health agencies to consider creative constructive approaches to combat serious public health challenges. Vaccination of vector/reservoir species, when efficacious vaccines are available, offers significant advantages to combating zoonotic human disease. PMID:17633303

  13. Cellular Microbiology Emerging

    NSDL National Science Digital Library

    P. Cossart (Institut Pasteur; Unité des Interactions Bactéries-Cellules)

    1996-01-19

    Access to the article is free, however registration and sign-in are required. Microbial pathogens have evolved to interfere with essential processes in eukaryotic cells. P. Cossart illustrates how a new field, cellular microbiology, is emerging in which the targets of these microbes are being identified and many aspects of normal cell biology are being revealed.

  14. EMERGING MEDIA IN PERIL

    Microsoft Academic Search

    Hun Shik Kim; Mariwan Hama-Saeed

    2008-01-01

    After the fall of the Saddam Hussein regime in April 2003, Iraqi media have witnessed a remarkable growth in number and diversity. From the Western journalistic perspective, the invasion is often viewed as a form of “liberation” in terms of press freedom. Over the five years following the collapse of the Saddam regime, new threats and restraints have emerged to

  15. Emerging equity market volatility

    Microsoft Academic Search

    Geert Bekaert; Campbell R. Harvey

    1997-01-01

    Understanding volatility in emerging capital markets is important for determining the cost of capital and for evaluating direct investment and asset allocation decisions. We provide an approach that allows the relative importance of world and local information to change through time in both the expected returns and conditional variance processes. Our time-series and cross-sectional models analyze the reasons that volatility

  16. EMERGENCY MENU with Imagination--

    E-print Network

    MENU with Imagination-- No Heating Required DAY 2 Nutrition analysis based on V8 juice, milk#12;EMERGENCY MENU with Imagination-- No Heating Required DAY 1 Nutrition analysis based on fruit juice = orange juice, canned fruit = unsweetened applesauce, flour tortillas, CheeriosTM cereal, canned

  17. Emergency preparedness in obstetrics.

    PubMed

    Haeri, Sina; Marcozzi, David

    2015-04-01

    During and after disasters, focus is directed toward meeting the immediate needs of the general population. As a result, the routine health care and the special needs of some vulnerable populations such as pregnant and postpartum women may be overlooked within a resource-limited setting. In the event of hazards such as natural disasters, manmade disasters, and terrorism, knowledge of emergency preparedness strategies is imperative for the pregnant woman and her family, obstetric providers, and hospitals. Individualized plans for the pregnant woman and her family should include knowledge of shelter in place, birth at home, and evacuation. Obstetric providers need to have a personal disaster plan in place that accounts for work responsibilities in case of an emergency and business continuity strategies to continue to provide care to their communities. Hospitals should have a comprehensive emergency preparedness program utilizing an "all hazards" approach to meet the needs of pregnant and postpartum women and other vulnerable populations during disasters. With lessons learned in recent tragedies such as Hurricane Katrina in mind, we hope this review will stimulate emergency preparedness discussions and actions among obstetric providers and attenuate adverse outcomes related to catastrophes in the future. PMID:25751222

  18. Emerging supercomputer architectures

    SciTech Connect

    Messina, P.C.

    1987-01-01

    This paper will examine the current and near future trends for commercially available high-performance computers with architectures that differ from the mainstream ''supercomputer'' systems in use for the last few years. These emerging supercomputer architectures are just beginning to have an impact on the field of high performance computing. 7 refs., 1 tab.

  19. The Emergent Profession.

    ERIC Educational Resources Information Center

    Veale, Ann

    Recent changes in the field of early childhood education that suggest patterns of emerging professionalism in Australia are discussed. These changes include the following: (1) the development of a code of ethics for the Australian early childhood profession; (2) the transitions of training institutions into universities; (3) the development of…

  20. Update on emergency contraception.

    PubMed

    Fine, Paul M

    2011-02-01

    Emergency contraception is a woman's last chance to prevent unintended pregnancy. Ulipristal acetate, a selective progesterone receptor modulator, when taken as a single 30 mg dose, is a new, safe and effective emergency contraceptive that can be used from the first day and up to 5 days following unprotected intercourse. The older progesterone-only emergency contraceptive, levonorgestrel, is taken as two 0.75 mg pills 12 hours apart (Next Choice(®); Watson Pharmaceuticals Inc., Morristown, NJ, USA) or a single 1.5 mg pill (Plan B One-Step™; Watson Pharmaceuticals Inc.), and is approved for only 72 hours after unprotected intercourse. During clinical development, ulipristal acetate has been shown to be more effective than levonorgestrel in delaying or inhibiting ovulation. A recent meta-analysis of two randomized clinical trials showed ulipristal acetate to have a pregnancy risk 42% lower than levonorgestrel up to 72 hours and 65% lower in the first 24 hours following unprotected intercourse. Moreover, when taken beyond 72 hours, significantly more pregnancies were prevented with ulipristal acetate than with levonorgestrel. Side effects are mild and similar to those seen with levonorgestrel. Ulipristal acetate was approved for emergency contraception by the US Food and Drug Administration in August 2010, and has been launched in the USA as ella(®) (Watson Pharmaceuticals Inc.) since December 1, 2010. Ella is prescription only and is priced comparable to Plan B One-Step. PMID:21153722

  1. Emerging foodborne pathogens

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The emergence of new foodborne pathogens is due to a number of factors. An important factor is the globalization of the food supply with the possibility of the introduction of foodborne pathogens from other countries. Animal husbandry, food production, food processing, and food distribution system...

  2. Emerging Stormwater Pollutant Reduction

    E-print Network

    Emerging Stormwater Pollutant Reduction Strategies From Another Urban Watershed: Importing Some Ideas from the Chesapeake Bay #12;Chesapeake Stormwater Network Three year old 501(c)(3) organization · New Stormwater Developments in the Chesapeake Bay Watershed · Update on the Impervious Cover Model

  3. SECOND FLOOR EMERGENCY EXIT

    E-print Network

    Goldman, Steven A.

    GREECE & ROME FOUNTAIN COURT (Baroque art) 17TH- CENTURY EUROPEAN ART AMERICAN DECORATIVE ARTS ELEVATOR OFFICES ART LIBRARY CREATIVE WORKSHOP LUCY BURNE GALLERY RENTAL SPACES MAX AT THE GALLERY GROUP/TOUR ENTRANCE GROUND FLOOR EXHIBITION AREAS * RESTAURANT ELEVATOR EMERGENCY EXIT "SEEING AMERICA" Focus

  4. Emergence of Refractive Surgery

    Microsoft Academic Search

    Peter J. McDonnell

    major story of the last 2 decades of the 20th century has been the emergence of re- fractive surgery. Initially extremely controversial, with modest predictability and de- batable safety and long-term stability,1 surgical modification of corneal curvature has come to be well accepted by the profession and the public. The number of these pro- cedures that will be performed in

  5. Emerging foodborne pathogens

    Microsoft Academic Search

    Robert V. Tauxe

    2002-01-01

    The broad spectrum of foodborne infections has changed dramatically over time, as well-established pathogens have been controlled or eliminated, and new ones have emerged. The burden of foodborne disease remains substantial: one in four Americans is estimated to have a significant foodborne illness each year. The majority of these illnesses are not accounted for by known pathogens, so more must

  6. Ecosystems emerging: 1. conservation

    Microsoft Academic Search

    Bernard C. Patten; Milan Straškraba; Sven E. Jørgensen

    1997-01-01

    This second paper in the series on Ecosystems Emerging treats some properties of ecosystems derivable from the single elementary principle of conservation. These go beyond the mere balancing out of the matter and forces of nature.A brief sketch of a conservationless world is given, followed by an elementary background review of energy, matter and information. The main conservative quantities are

  7. Brewster Hall Emergency Instructions

    E-print Network

    de Leon, Alex R.

    .ca/emergencyplan/node/28 Last Updated: 9-Jan-14 Primary Assembly Point: Dining Centre Alternative Assembly Point the building and proceed to the Assembly Point If you have information regarding the emergency call Campus using a different line if possible Utilize call trace if on cell-phone or off-campus phone (key *69

  8. Earth Sciences Emergency Instructions

    E-print Network

    de Leon, Alex R.

    .ca/emergencyplan/node/28 Last Updated: 9-Jan-14 Primary Assembly Point: ICT - Food Court Alternative Assembly Point: Social the building and proceed to the Assembly Point If you have information regarding the emergency call Campus using a different line if possible Utilize call trace if on cell-phone or off-campus phone (key *69

  9. Olympic Oval Emergency Instructions

    E-print Network

    de Leon, Alex R.

    .ca/emergencyplan/node/28 Last Updated: 9-Jan-14 Primary Assembly Point: Kinesiology B - Atrium Alternative Assembly Point the building and proceed to the Assembly Point If you have information regarding the emergency call Campus using a different line if possible Utilize call trace if on cell-phone or off-campus phone (key *69

  10. Norquay Hall Emergency Instructions

    E-print Network

    de Leon, Alex R.

    .ca/emergencyplan/node/28 Last Updated: 9-Jan-14 Primary Assembly Point: Dining Centre Alternative Assembly Point the building and proceed to the Assembly Point If you have information regarding the emergency call Campus using a different line if possible Utilize call trace if on cell-phone or off-campus phone (key *69

  11. Weather Station Emergency Instructions

    E-print Network

    de Leon, Alex R.

    .ca/emergencyplan/node/28 Last Updated: 9-Jan-14 Primary Assembly Point: Physical Plant - Room 100 Alternative Assembly the building and proceed to the Assembly Point If you have information regarding the emergency call Campus using a different line if possible Utilize call trace if on cell-phone or off-campus phone (key *69

  12. Education Tower Emergency Instructions

    E-print Network

    de Leon, Alex R.

    .ca/emergencyplan/node/28 Last Updated: 9-Jan-14 Primary Assembly Point: Scurfield Hall - Atrium Alternative Assembly Point the building and proceed to the Assembly Point If you have information regarding the emergency call Campus using a different line if possible Utilize call trace if on cell-phone or off-campus phone (key *69

  13. Heating Plant Emergency Instructions

    E-print Network

    de Leon, Alex R.

    .ca/emergencyplan/node/28 Last Updated: 9-Jan-14 Primary Assembly Point: Physical Plant - Room 100 Alternative Assembly the building and proceed to the Assembly Point If you have information regarding the emergency call Campus using a different line if possible Utilize call trace if on cell-phone or off-campus phone (key *69

  14. Yamnuska Hall Emergency Instructions

    E-print Network

    de Leon, Alex R.

    .ca/emergencyplan/node/28 Last Updated: 9-Jan-14 Primary Assembly Point: Dining Centre Alternative Assembly Point the building and proceed to the Assembly Point If you have information regarding the emergency call Campus using a different line if possible Utilize call trace if on cell-phone or off-campus phone (key *69

  15. Reeve Theatre Emergency Instructions

    E-print Network

    de Leon, Alex R.

    .ca/emergencyplan/node/28 Last Updated: 9-Jan-14 Primary Assembly Point: Craigie Hall G - Lobby Alternative Assembly Point the building and proceed to the Assembly Point If you have information regarding the emergency call Campus using a different line if possible Utilize call trace if on cell-phone or off-campus phone (key *69

  16. Physical Plant Emergency Instructions

    E-print Network

    de Leon, Alex R.

    .ca/emergencyplan/node/28 Last Updated: 9-Jan-14 Primary Assembly Point: Child Development Centre Foyer Alternative Assembly the building and proceed to the Assembly Point If you have information regarding the emergency call Campus using a different line if possible Utilize call trace if on cell-phone or off-campus phone (key *69

  17. Dining Centre Emergency Instructions

    E-print Network

    de Leon, Alex R.

    .ca/emergencyplan/node/28 Last Updated: 9-Jan-14 Primary Assembly Point: Kinesiology B - Atrium Alternative Assembly Point the building and proceed to the Assembly Point If you have information regarding the emergency call Campus using a different line if possible Utilize call trace if on cell-phone or off-campus phone (key *69

  18. Olympus Hall Emergency Instructions

    E-print Network

    de Leon, Alex R.

    .ca/emergencyplan/node/28 Last Updated: 9-Jan-14 Primary Assembly Point: Dining Centre Alternative Assembly Point the building and proceed to the Assembly Point If you have information regarding the emergency call Campus using a different line if possible Utilize call trace if on cell-phone or off-campus phone (key *69

  19. Administration Emergency Instructions

    E-print Network

    de Leon, Alex R.

    .ca/emergencyplan/node/28 Last Updated: 9-Jan-14 Primary Assembly Point: Social Science - Food Court Alternative Assembly the building and proceed to the Assembly Point If you have information regarding the emergency call Campus using a different line if possible Utilize call trace if on cell-phone or off-campus phone (key *69

  20. Cascade Hall Emergency Instructions

    E-print Network

    de Leon, Alex R.

    .ca/emergencyplan/node/28 Last Updated: 9-Jan-14 Primary Assembly Point: Dining Centre Alternative Assembly Point the building and proceed to the Assembly Point If you have information regarding the emergency call Campus using a different line if possible Utilize call trace if on cell-phone or off-campus phone (key *69

  1. Rozsa Centre Emergency Instructions

    E-print Network

    de Leon, Alex R.

    .ca/emergencyplan/node/28 Last Updated: 9-Jan-14 Primary Assembly Point: Craigie Hall G - Lobby Alternative Assembly Point the building and proceed to the Assembly Point If you have information regarding the emergency call Campus using a different line if possible Utilize call trace if on cell-phone or off-campus phone (key *69

  2. Emergency Response Guideline Development

    Microsoft Academic Search

    Gary D. Storrick

    2007-01-01

    Task 5 of the collaborative effort between ORNL, Brazil, and Westinghouse for the International Nuclear Energy Research Initiative entitled Development of Advanced Instrumentation and Control for an Integrated Primary System Reactor focuses on operator control and protection system interaction, with particular emphasis on developing emergency response guidelines (ERGs). As in the earlier tasks, we will use the IRIS plant as

  3. Is it an Emergency?

    MedlinePLUS

    ... operator the location of the emergency, because a cell tower provides only very general information about the location of a caller. Some cars now are equipped with "smart" technologies that use global positioning system satellites and cellular technology to link vehicles to direct ...

  4. Emergency Teacher Certification.

    ERIC Educational Resources Information Center

    Williamson, James L.; And Others

    This report analyzes information gathered by a task force, appointed by the American Association of Colleges for Teacher Education (AACTE), to investigate the current status of emergency or substandard certification measures used by state agencies and school districts. In an overview, the task force defines the role of teacher certification and…

  5. Emergency Services Funday.

    PubMed

    Conroy, Louisa

    2015-07-10

    LAST MONTH, I went with my family and friends to an emergency services event in Longton, Stoke-on-Trent. This annual event is always well advertised and, on the day we went, more than 12,000 people are said to have attended. PMID:26159335

  6. Emergent feature modularization

    Microsoft Academic Search

    Márcio Ribeiro; Humberto Pacheco; Leopoldo Teixeira; Paulo Borba

    2010-01-01

    Virtual Separation of Concerns reduces the drawbacks of implementing product line variability with preprocessors. Developers can focus on certain features and hide others of no interest. However, these features eventually share elements between them, which might break feature modularization, since modifications in a feature result in problems for another. We present the concept of emergent feature modularization, which aims to

  7. Emerging techniques in orthopedics: advances in neuromuscular electrical stimulation.

    PubMed

    Paessler, Hans H

    2012-05-01

    Neuromuscular electrical stimulation (NMES) is defined as the application of an electric current to neuromuscular tissue to elicit a muscle contraction. It is typically applied in a clinical setting to strengthen muscle, particularly the quadriceps femoris, through repetitive contractions. Most studies to date involving NMES have been conducted using conventional lead-wired, or "single path" devices, and while effective, these devices have inherent limitations around comfort and incomplete muscle recruitment. In a prospective, randomized, controlled, single-blind trial, investigators found that using a novel "Multipath" device was effective when combined with standard rehabilitation in accelerating recovery after anterior cruciate ligament reconstruction. Additional research is warranted to explore whether this effect also occurs after other types of knee surgery. PMID:24911257

  8. Digital Anti-Forensics: Emerging trends in data transformation techniques

    Microsoft Academic Search

    Christian S. J. Peron; Michael Legary

    This paper explores two questions: What methods can be used to deceive someone who is in an investigative role into trusting an object which has been exploited? What kind of impact does operating system and application run-time linking have on live investigations? After experimenting with dynamic object dependencies and kernel modules in the UNIX environment, it is the opinion of

  9. CURRENT AND EMERGING TECHNIQUES FOR CHARACTERIZING TROPOSPHERIC AEROSOLS

    EPA Science Inventory

    Particulate matter generally includes dust, smoke, soot, or aerosol particles. Environmental research addresses the origin, size, chemical composition, and the formation mechanics of aerosols. In the troposphere, fine aerosols (e.g. with diameters < 2.5 um) remain suspended until...

  10. SESSION: EMERGING POLLUTANT ASSESSMENT TECHNIQUES TITLE: BACTERIAL SOURCE TRACKING

    EPA Science Inventory

    Fecal contamination of surface waters used for recreation, drinking water and aquaculture are a continuous environmental problem and pose significant human health risks. An alarming amount of the United States rivers/streams (39%), lakes (45%), and estuaries (51%) are not safe f...

  11. In search of searching skills

    Microsoft Academic Search

    Donald Fairhall

    1985-01-01

    A set of skills thought to contribute to effectiveness in searching subject indexes is defined. Of these, one group was selected for study, namely skills thought to focus a search. An objective test to measure these skills was administered to 129 students and established to have content validity, and some degree of construct validity. The skills involved did not corre

  12. SUSY Searches in the ATLAS Experiment

    NASA Astrophysics Data System (ADS)

    Lee, Lawrence

    2015-06-01

    Recent results from the ATLAS experiment at the LHC in the search for supersymmetry are presented. A focus is placed on searches requiring nonstandard techniques in particularly challenging final states. All searches presented here analyze pp collisions with ?s = 8 TeV collected in 2012. Within these results, in the absence of significant disagreement from the Standard Model expectations, limits are placed on various models in both strong and weak sparticle production as well as on models with long-lived sparticles.

  13. Emergency operation indications in emergency medicine clinic (model of emergency medicine in Turkey)

    Microsoft Academic Search

    Basar Cander; Erdal Kalkan; Sadýk Girisgin; Mehmet Gul; Figen Coskun

    2006-01-01

    Although patients who present for emergency medical care have a broad spectrum of symptoms, such events can generally be categorized\\u000a as internal medicine, surgical, and pediatric emergency cases. Indications for emergency surgery are estimated to be infrequent\\u000a compared with the overall number of patients admitted for emergency care. This study investigated the indications for emergency\\u000a surgery in patients (612 of

  14. Automated Data Mining Techniques: A Critical Literature Review

    Microsoft Academic Search

    Sohail Asghar; K. Iqbal

    2009-01-01

    Data mining has emerged as one of the major research domain in the recent decades in order to extract implicit and useful knowledge. This knowledge can be comprehended by humans easily. Initially, this knowledge extraction was computed and evaluated manually using statistical techniques. Subsequently,semi-automated data mining techniques emerged because of the advancement in the technology. Such advancement was also in

  15. Cleaning search results using term distance features

    Microsoft Academic Search

    Josh Attenberg; Torsten Suel

    2008-01-01

    The presence of Web spam in query results is one of the critical challenges facing search engines today. While search engines try to combat the impact of spam pages on their results, the incentive for spammers to use increasingly sophisticated techniques has never been higher, since the commercial success of a Web page is strongly correlated to the number of

  16. New particle searches with ? at DELPHI

    NASA Astrophysics Data System (ADS)

    Matorras, Francisco

    2005-07-01

    The ? lepton has played an important role in many new physics searches performed at the DELPHI experiment at LEP. In this paper the basic selection and identification techniques are outlined. Some of the most interesting searches are described: charged higgs, doubly charged higgs, sleptons or excited leptons.

  17. High-speed data search

    NASA Technical Reports Server (NTRS)

    Driscoll, James N.

    1994-01-01

    The high-speed data search system developed for KSC incorporates existing and emerging information retrieval technology to help a user intelligently and rapidly locate information found in large textual databases. This technology includes: natural language input; statistical ranking of retrieved information; an artificial intelligence concept called semantics, where 'surface level' knowledge found in text is used to improve the ranking of retrieved information; and relevance feedback, where user judgements about viewed information are used to automatically modify the search for further information. Semantics and relevance feedback are features of the system which are not available commercially. The system further demonstrates focus on paragraphs of information to decide relevance; and it can be used (without modification) to intelligently search all kinds of document collections, such as collections of legal documents medical documents, news stories, patents, and so forth. The purpose of this paper is to demonstrate the usefulness of statistical ranking, our semantic improvement, and relevance feedback.

  18. Natural language search of structured documents

    E-print Network

    Oney, Stephen W

    2008-01-01

    This thesis focuses on techniques with which natural language can be used to search for specific elements in a structured document, such as an XML file. The goal is to create a system capable of being trained to identify ...

  19. Vasectomy surgical techniques: a systematic review

    Microsoft Academic Search

    Michel Labrecque; Caroline Dufresne; Mark A Barone; Karine St-Hilaire

    2004-01-01

    BACKGROUND: A wide variety of surgical techniques are used to perform vasectomy. The purpose of this systematic review was to assess if any surgical techniques to isolate or occlude the vas are associated with better outcomes in terms of occlusive and contraceptive effectiveness, and complications. METHODS: We searched MEDLINE (1966-June 2003), EMBASE (1980-June 2003), reference lists of retrieved articles, urology

  20. What is a Pediatric Emergency Physician?

    MedlinePLUS

    ... Text Size Email Print Share What is a Pediatric Emergency Physician? Article Body A pediatric emergency physician ... pediatric emergency medicine. What Kind of Training Do Pediatric Emergency Physicians Have? Pediatric emergency physicians are medical ...

  1. An Impact-Based Filtering Approach for Literature Searches

    ERIC Educational Resources Information Center

    Vista, Alvin

    2013-01-01

    This paper aims to present an alternative and simple method to improve the filtering of search results so as to increase the efficiency of literature searches, particularly for individual researchers who have limited logistical resources. The method proposed here is scope restriction using an impact-based filter, made possible by the emergence of…

  2. Does City Structure Affect Job Search and Welfare?

    Microsoft Academic Search

    Etienne Wasmer; Yves Zenou

    2002-01-01

    We develop a model in which workers' search efficiency is negatively affected by access to jobs. Workers' location in a city is endogenous and reflects a trade-off between commuting costs and the surplus associated with search. Different configurations emerge in equilibrium; notably, the unemployed workers may reside far away (segregated city) or close to jobs (integrated city). We prove that

  3. Emerging Contaminant Issues, Including Management Of Emerging Contaminants In Wastewater

    EPA Science Inventory

    Emerging contaminants are receiving increasing media and scientific attention. These chemicals are sometimes referred to as compounds of emerging concern or trace organic compounds, and include several groups of chemicals including endocrine disrupting compounds (EDCs), and pha...

  4. Update on emergency contraception.

    PubMed

    Murphy, Patricia Aikins

    2012-01-01

    Emergency contraception (EC) is any method used after sexual intercourse to prevent pregnancy. This article provides an overview of the history of EC methods and describes the current availability of oral and intrauterine EC. Oral forms include the Yuzpe regimen (combining ethinyl estradiol and levonorgestrel), levonorgestrel-only pills, and ulipristal acetate, which is a new emergency contraceptive drug recently approved by the US Food and Drug Administration. The copper T-380A intrauterine device can also be used for EC. Information about dosing, timing, access, and other considerations in the provision of EC is covered. Clinicians should be aware of all available options in order to counsel women in need of EC appropriately. PMID:23050729

  5. USGS Emergency Management

    NSDL National Science Digital Library

    2012-04-06

    Most people are familiar with the work of the United States Geological Survey (USGS) as it relates to describing and analyzing everything from tectonic activity to mineral deposits around the United States. People may be less familiar with their work as it relates to emergency management. This website provides information about their work to support the National Response Framework emergency support functions, along with a cornucopia of materials on the Natural Hazards Support System (NHSS), Issues of Interest, and a set of USGS Real-Time Resources. The National Hazards Support System includes an interactive world map of current natural hazard events. Visitors can toggle various natural hazard layers off and on as they see fit. Additionally, the Issues of Interest area contains updates on earthquakes, floods, hurricanes, tsunamis, and volcanoes. Finally, the USGS Real-Time Resources area contains real-time updates on current landslides, streamflow conditions, and other related matters.

  6. How Emergent is Gravity?

    E-print Network

    Bhattacharya, Swastik

    2015-01-01

    General theory of relativity (or Lovelock extensions) is a dynamical theory; given an initial configuration on a space-like hypersurface, it makes a definite prediction of the final configuration. Recent developments suggest that gravity may be described in terms of macroscopic parameters. It finds a concrete manifestation in the fluid-gravity correspondence. Most of the efforts till date has been to relate equilibrium configurations in gravity with fluid variables. In order for the emergent paradigm to be truly successful, it has to provide a statistical mechanical derivation of how a given initial static configuration evolves into another. In this essay, we show that the energy transport equation governed by the fluctuations of the horizon-fluid is similar to Raychaudhuri equation and, hence gravity is truly emergent.

  7. Emerging Foodborne Trematodiasis

    PubMed Central

    Utzinger, Jürg

    2005-01-01

    Foodborne trematodiasis is an emerging public health problem, particularly in Southeast Asia and the Western Pacific region. We summarize the complex life cycle of foodborne trematodes and discuss its contextual determinants. Currently, 601.0, 293.8, 91.1, and 79.8 million people are at risk for infection with Clonorchis sinensis, Paragonimus spp., Fasciola spp., and Opisthorchis spp., respectively. The relationship between diseases caused by trematodes and proximity of human habitation to suitable freshwater bodies is examined. Residents living near freshwater bodies have a 2.15-fold higher risk (95% confidence interval 1.38–3.36) for infections than persons living farther from the water. Exponential growth of aquaculture may be the most important risk factor for the emergence of foodborne trematodiasis. This is supported by reviewing aquaculture development in countries endemic for foodborne trematodiasis over the past 10–50 years. Future and sustainable control of foodborne trematodiasis is discussed. PMID:16318688

  8. Ion Beam Analysis Techniques in Interdisciplinary Applications

    SciTech Connect

    Respaldiza, Miguel A.; Ager, Francisco J.

    1999-12-31

    The ion beam analysis techniques emerge in the last years as one of the main applications of electrostatic accelerators. A short summary of the most used IBA techniques will be given as well as some examples of applications in interdisciplinary sciences.

  9. Ion beam analysis techniques in interdisciplinary applications

    SciTech Connect

    Respaldiza, Miguel A.; Ager, Francisco J. [Depto. de Fisica Atomica, Molecular y Nuclear, Universidad de Sevilla (Spain); Centro Nacional de Aceleradores, Av. Thomas A. Edison, Sevilla E-41092 (Spain)

    1999-11-16

    The ion beam analysis techniques emerge in the last years as one of the main applications of electrostatic accelerators. A short summary of the most used IBA techniques will be given as well as some examples of applications in interdisciplinary sciences.

  10. Emerging Digital Economy II

    NSDL National Science Digital Library

    Buckley, Patricia.

    An update of the 1998 US Department of Commerce document Emerging Digital Economy (reviewed in the April 17, 1998 Scout Report), the second volume of this annual report shows that, although ecommerce remains less than one percent of the retail share of the economy, it continues to grow, "outpacing last year's most optimistic projections." New chapters and analyses include "Contribution of Information Technology to Gross Product Originating Per Worker" and "Labor Markets in the Digital Economy."

  11. Emerging breast imaging modalities.

    PubMed

    Rush, Bonnie

    2010-01-01

    Current limitations in mammography have impelled the development of alternative imaging modalities for general and/or high-risk screenings, problem-solving, diagnosis, staging, pre-surgical planning, and determination of treatment efficacy. From initial studies, emerging breast modalities may overcome the inherent weaknesses of current imaging procedures. Among the modalities discussed here are digital breast tomosynthesis (DBT), molecular breast imaging, automated breast ultrasound, breast elasticity ultrasound imaging, and cone beam breast CT (CBBCT). PMID:22276361

  12. Hypertensive Emergencies in Children

    Microsoft Academic Search

    Pankaj Hari; Aditi Sinha

    2011-01-01

    Hypertensive emergencies, though uncommon in children, are potentially life threatening. While targeting blood pressure reduction\\u000a to below the 90th percentile for age, gender and height, mean arterial blood pressure should be gradually lowered by one-fourth\\u000a of the planned reduction over 8–12 h, a further fourth over the next 8–12 h, and the final 50% over the 24 h after that. Frequent\\u000a invasive or

  13. Pediatric Neurological Emergencies

    Microsoft Academic Search

    J. W. J. McCann; E. Phelan

    Acute encephalopathy in childhood may vary in its presentation, aetiology and imaging compared with the adult population.\\u000a Emergent neuroimaging, while often performed in order to exclude infection or neoplasia as a cause of acute neurological deterioration,\\u000a may reveal imaging findings peculiar to a number of specific conditions. The radiologist may be the first to recognise and\\u000a suggest conditions such as

  14. Emergent Traffic Jams

    Microsoft Academic Search

    Kai Nagel; Maya Paczuski

    1995-01-01

    We study a single-lane traffic model that is based on human driving behavior. The outflow from a traffic jam self-organizes to a critical state of maximum throughput. Small perturbations of the outflow far downstream create emergent traffic jams with a power law distribution $P(t) \\\\sim t^{-3\\/2}$ of lifetimes, $t$. On varying the vehicle density in a closed system, this critical

  15. Emergency Medical Personnel Training

    Microsoft Academic Search

    Pamela A. Sytkowski; Lenworth M. Jacobs; Barbara Bennett

    1983-01-01

    Nationwide Emergency Medical Technician (EMT) training programs at both basic and advanced levels are in flux, confronting similar challenges in design and implementation. There currently exist the 81-hour Department of Transportation course of instruction as the basis for EMT-Ambulance (EMT-A) certification and the National Standard Training Curriculum (NSTC) 15-module course for training the EMT-Paramedic (EMT-P). The National Registry of EMTs

  16. Single Cell Electrical Characterization Techniques

    PubMed Central

    Mansor, Muhammad Asraf; Ahmad, Mohd Ridzuan

    2015-01-01

    Electrical properties of living cells have been proven to play significant roles in understanding of various biological activities including disease progression both at the cellular and molecular levels. Since two decades ago, many researchers have developed tools to analyze the cell’s electrical states especially in single cell analysis (SCA). In depth analysis and more fully described activities of cell differentiation and cancer can only be accomplished with single cell analysis. This growing interest was supported by the emergence of various microfluidic techniques to fulfill high precisions screening, reduced equipment cost and low analysis time for characterization of the single cell’s electrical properties, as compared to classical bulky technique. This paper presents a historical review of single cell electrical properties analysis development from classical techniques to recent advances in microfluidic techniques. Technical details of the different microfluidic techniques are highlighted, and the advantages and limitations of various microfluidic devices are discussed. PMID:26053399

  17. Emergency Response Guideline Development

    SciTech Connect

    Gary D. Storrick

    2007-09-30

    Task 5 of the collaborative effort between ORNL, Brazil, and Westinghouse for the International Nuclear Energy Research Initiative entitled “Development of Advanced Instrumentation and Control for an Integrated Primary System Reactor” focuses on operator control and protection system interaction, with particular emphasis on developing emergency response guidelines (ERGs). As in the earlier tasks, we will use the IRIS plant as a specific example of an integrated primary system reactor (IPSR) design. The present state of the IRIS plant design – specifically, the lack of a detailed secondary system design – precludes establishing detailed emergency procedures at this time. However, we can create a structure for their eventual development. This report summarizes our progress to date. Section 1.2 describes the scope of this effort. Section 2 compares IPSR ERG development to the recent AP1000 effort, and identifies three key plant differences that affect the ERGs and control room designs. The next three sections investigate these differences in more detail. Section 3 reviews the IRIS Safety-by-Design™ philosophy and its impact on the ERGs. Section 4 looks at differences between the IRIS and traditional loop PWR I&C Systems, and considers their implications for both control room design and ERG development. Section 5 examines the implications of having one operating staff control multiple reactor units. Section 6 provides sample IRIS emergency operating procedures (EOPs). Section 7 summarizes our conclusions.

  18. Emergent Infectious Uveitis

    PubMed Central

    Khairallah, Moncef; Jelliti, Bechir; Jenzeri, Salah

    2009-01-01

    Infectious causes should always be considered in all patients with uveitis and it should be ruled out first. The differential diagnosis includes multiple well-known diseases including herpes, syphilis, toxoplasmosis, tuberculosis, bartonellosis, Lyme disease, and others. However, clinicians should be aware of emerging infectious agents as potential causes of systemic illness and also intraocular inflammation. Air travel, immigration, and globalization of business have overturned traditional pattern of geographic distribution of infectious diseases, and therefore one should work locally but think globally, though it is not possible always. This review recapitulates the systemic and ocular mainfestations of several emergent infectious diseases relevant to the ophthalmologist including Rickettsioses, West Nile virus infection, Rift valley fever, dengue fever, and chikungunya. Retinitis, chorioretinitis, retinal vasculitis, and optic nerve involvement have been associated with these emergent infectious diseases. The diagnosis of any of these infections is usually based on pattern of uveitis, systemic symptoms and signs, and specific epidemiological data and confirmed by detection of specific antibody in serum. A systematic ocular examination, showing fairly typical fundus findings, may help in establishing an early clinical diagnosis, which allows prompt, appropriate management. PMID:20404989

  19. Search Text Based on Locations 

    E-print Network

    Zhang, Weiwei

    2014-11-21

    conceptual density method. Other research has focused on the location query processing in web-based search engines, such as [6] and [7]. For instance, Zheng [8] evaluates a probabilistic system that uses the tweet content of a Twitter user to classify his... weighted sum and the evidence using Dempster- Shafers theory. For the topic modeling, the earliest technique was the manually built thesaurus. However, this technique is time consuming and can result in a substantial disagree- 3 ment on the semantic...

  20. Trampoline injury in New Zealand: emergency care.

    PubMed Central

    Hume, P A; Chalmers, D J; Wilson, B D

    1996-01-01

    OBJECTIVE: To examine trampoline related injuries resulting in emergency department attendance. METHODS: Cases were identified by searching free text descriptions of the circumstances of injury contained in the records of the emergency department of a large city hospital. RESULTS: 114 cases were identified for a 12 month period, giving an incidence rate of 108 per 100,000 population per year (95% confidence interval = 89 to 129) compared with 9.3 hospital admissions per 100,000 population per year (95% confidence interval = 8.3 to 10.4) for a corresponding period reported in earlier research from New Zealand. This suggested that for every one hospital admission there are approximately 12 emergency department attendances. Of the cases, 95% were aged less than 20 years. As for the earlier research, falls from the trampoline to the surrounding surface were the commonest cause of injury. In the present study, sprains and strains were the commonest type of injury (40%), and the body site most frequently involved was the lower limb (46%). CONCLUSIONS: The findings support the conclusion from earlier research that although existing trampoline standards address many of the issues relating to trampoline safety, the need remains for measures to reduce the impact of falls from the trampoline to the ground surface and to prohibit the use of trampolines as unsupervised "play equipment". PMID:9015596

  1. Improving multirobot, cooperative search via local target queues

    Microsoft Academic Search

    Monica Anderson; Nikolaos Papanikolopoulos

    2007-01-01

    Multirobot coordination techniques range from sharing state and intent information to explicit coordination strategies. The choice of cooperation strategy can affect task performance and resource utilization. This paper investigates the use of local search queues, rather than globally shared search queues. This work shows this change improves search in terms of interference and communications loads, two key factors in multirobot

  2. Reducing Storage Costs for Federated Search of Text Databases

    Microsoft Academic Search

    Jie Lu; Jamie Callan

    2003-01-01

    In environments containing many text search engines a federated search system provides people with a single point of access. When search engines are managed by independent organizations two key problems are discovering and representing the contents of each text database. Query-based sampling is a recent technique for discovering the contents of uncooperative databases so as to create database resource descriptions

  3. Attractor of Local Search Space in the Traveling Salesman Problem

    Microsoft Academic Search

    WEIQI LI

    A local search technique usually is locally convergent and, as result, outputs a local optimum. For many optimization problems, there is an attractor in the search space that drives the local search trajectories to converge into a small region. To gain insight into the basic properties of the attractor, this paper presents a framework for studying the attractor of local

  4. FOURIER ENCODED DATA SEARCHING OF INFRARED SPECTRA (FEDS/IRS)

    EPA Science Inventory

    A new library searching technique is reported that relies on Fourier transforms of infrared (IR) absorbance spectra. Searching in the time domain is shown to be more tolerant to noise than searches in the spectral domain and fewer points are required to encode the unique characte...

  5. Evaluating Server Selection for Federated Search Paul Thomas1

    E-print Network

    Thomas, Paul

    Evaluating Server Selection for Federated Search Paul Thomas1 and Milad Shokouhi2 1 CSIRO paul for evaluating federated search server selec- tion techniques. In our model, we isolate the effect of other be obscured by ineffective merging. 1 Introduction Federated search attempts to provide a single interface

  6. Improving web search result categorization using knowledge from web taxonomy

    Microsoft Academic Search

    Supakpong Jinarat; Choochart Haruechaiyasak; Amon Rungsawang

    2009-01-01

    Finding relevant information from a long list of search results returned by general search engine can be difficult. The categorization technique is applied to solve this problem. One possible approach is by using some external resources such as Open Directory Project (ODP) to map search result's URLs into the ODP categories. However, the ODP can only map some part of

  7. SURF: Detecting and Measuring Search Poisoning College of Computing

    E-print Network

    SURF: Detecting and Measuring Search Poisoning Long Lu College of Computing Georgia Inst, search poison- ing techniques disregard any term relevance constraint and are em- ployed to poison-hungry web- sites for malicious purposes. To accurately detect search poisoning cases, we designed a novel

  8. Search.com

    NSDL National Science Digital Library

    Search.com allows you to search over 800 engines, listed by subject areas from arts to Web. Each subject area presents a list of search forms, along with very brief annotations and "search tips." While there is no way to do a multiple engine search with a single command, the organization of Search.com allows the user to determine which engines might be appropriate. Search.com also allows you to set up a "personal" search page, based on subjects and searching engines chosen. Searching help is also provided, as is a "meta-search" to find useful engines before starting a search.

  9. Emergency Meal Planning for Diabetics

    MedlinePLUS

    ... Avoid high potassium fruit juices (orange juice). THREE-DAY DIABETIC GROCERY LIST FOR EMERGENCIES Item Amount (per ... Other Distilled water 5 one gallon jugs THREE-DAY DIABETIC MEAL PLAN FOR EMERGENCIES The sample meal ...

  10. Emergent Horava gravity in graphene

    E-print Network

    G. E. Volovik; M. A. Zubkov

    2013-07-07

    First of all, we reconsider the tight - binding model of monolayer graphene, in which the variations of the hopping parameters are allowed. We demonstrate that the emergent 2D Weitzenbock geometry as well as the emergent U(1) gauge field appear. The emergent gauge field is equal to the linear combination of the components of the zweibein. Therefore, we actually deal with the gauge fixed version of the emergent 2+1 D teleparallel gravity. In particular, we work out the case, when the variations of the hopping parameters are due to the elastic deformations, and relate the elastic deformations with the emergent zweibein. Next, we investigate the tight - binding model with the varying intralayer hopping parameters for the multilayer graphene with the ABC stacking. In this case the emergent 2D Weitzenbock geometry and the emergent U(1) gauge field appear as well, the emergent low energy effective field theory has the anisotropic scaling.

  11. Protocols for Teaching Students How to Search for, Discover, and Evaluate Innovations

    ERIC Educational Resources Information Center

    Norton, William I., Jr.; Hale, Dena H.

    2011-01-01

    The authors introduce and develop protocols to guide aspiring entrepreneurs' behaviors in searching for and discovering innovative ideas that may have commercial potential. Systematic search has emerged as a theory-based, prescriptive framework to guide innovative behavior. Grounded in Fiet's theory of search and discovery, this article provides…

  12. WiFi repeater deployment for improved communication in confined-space urban disaster search

    Microsoft Academic Search

    Alexander Ferworn; Nhan Tran; James Tran; Gerry Zarnett; Farrokh Sharifi

    2007-01-01

    lie examine the use of WiFi repeaters to extend the range of wireless devices employed in confined space search in an Urban Search and Rescue (USAR) environment. Confined spaces are often encountered by emergency responders at disaster sites. They typically are too small or hazardous to be searched by humans but may be accessible by rescue robots controlled and monitored

  13. Search the Site Post Job | Search Resumes

    E-print Network

    Chiao, Jung-Chih

    Search the Site News Employers Post Job | Search Resumes HOME CAREER NETWORK NEWS HOTBEDS EVENT by Subject News by Disease News by Date PLoS Search News CAREER NETWORK Most Recent Jobs Search Jobs Post Wireless System to Detect Esophageal Reflux - News, Search Jobs, Events URL: http

  14. [Selected emergencies in operative dermatology].

    PubMed

    Schulte, K-W; Horn, T

    2004-06-01

    The large number of surgical procedures in many subspecialty areas of dermatology, such as dermatologic oncology, phlebology and aesthetic dermatology, raises the question of possible complications and emergency situations. Along with common complications such as post-operative bleeding, infections or flap necrosis, there are emergency situations which require immediate intervention to avoid significant harm to the patient. One must distinguish between dermatologic situations which require emergency surgery and emergencies that arise during or after dermatological surgery. PMID:15127150

  15. INDIANA UNIVERSITY EMERGENCY ACTION PLAN

    E-print Network

    Polly, David

    .......................................................................................... 5 1. Sprinkler Alarm ­ Smoke Detection ­ Fire Alarm............................................. 5......................................................................................... 5 C. Emergency Alarms and Advisories 2. Homeland Security Advisory System

  16. Genre Emergence in Amateur Flash

    Microsoft Academic Search

    John C. Paolillo; Jonathan Warren; Breanne Kunz

    \\u000a While genre emergence is a recurrent theme in research on digital media, studies of genre emergence tend to adopt approaches\\u000a that do not clearly bring out role of the community in which the genres emerge. This chapter develops an approach in which\\u000a a quantitative social network analysis informs our study of genre emergence in Flash animations posted to Newgrounds.com,\\u000a a

  17. International Conference on Emerging Infectious Diseases: Select Presentations

    NSDL National Science Digital Library

    The National Center for Infectious Diseases has made available the audio (and in some cases, video) portion of more than 20 online presentations of selected sessions from the International Conference on Emerging Infectious Diseases, held July 16-19, 2000 in Atlanta, Georgia. Presentations are organized in chronological order of the conference but may also be searched by presenter. Some presentations may be downloaded in Microsoft PowerPoint. For researchers interested in the field of Emerging Infectious Diseases, this resource represents an exceptionally helpful application of Internet technology.

  18. Social networks, incentives, and search

    Microsoft Academic Search

    Jon M. Kleinberg

    2006-01-01

    The role of network structure has grown in significance over the past ten years in the field of information retrieval, stimulated to a great extent by the importance of link analysis in the development of Web search techniques [4]. This body of work has focused primarily on the network that is most clearly visible on the Web: the network of

  19. Interfaces for palmtop image search

    Microsoft Academic Search

    Mark Derthick

    2002-01-01

    Will current technology support search for video news or entertainment on mobile platforms? An Ipaq palmtop version of the Informedia Digital Video Library interface has already been developed at the Chinese University of Hong Kong. For these displays, the desktop technique of showing a large grid of images in parallel is not feasible. Perceptual psychology experiments suggest that time-multiplexing may

  20. Coordination and emergence in design

    Microsoft Academic Search

    Katerina Alexiou

    2010-01-01

    Over the last few decades there has been a growing interest in the concept of emergence in design research. Despite this interest, the meaning and scope of emergence in design is not clear. Indeed, there are two different views of emergence in design literature, representing different types of theories about design. The first is focused on individual cognition or perception,

  1. Emerging drug problems in Asia

    PubMed Central

    Bart, Gavin

    2014-01-01

    This session, “Emerging Drug Problems in Asia,” focused on emerging drug problems in Asia. Dr. Juana Tomás-Rosselló discussed “East and Southeast Asia: Emerging Drug Problems and Response” and Dr. Wei J. Chen discussed “Ketamine Use among Regular Tobacco and Alcohol Users as Revealed by Respondent Driven Sampling in Taipei: Prevalence, Expectancy, and Users' Risky Decision Making.” PMID:25267884

  2. Disaster Manual: Emergency, Evacuation, Recovery.

    ERIC Educational Resources Information Center

    Koplowitz, Brad; And Others

    This manual outlines the responsibilities of the director of the Oklahoma Department of Libraries in the event of a disaster as well as the functions of the emergency recovery team (ERT) in the coordination of recovery, and emergency action steps to be taken. The evacuation and emergency plan provided for the Allen Wright Memorial Library Building…

  3. Emergency medicine: A comprehensive review

    SciTech Connect

    Kravis, T.C.; Warner, C.G.

    1987-01-01

    This book contains 91 chapters divided among 14 sections. Some of the chapter titles are: Transfusions; Minor Lacerations and Abrasions; Diabetic Emergencies; Adrenal Insufficiency; Hypercalcemia; Medical Genetics; Burns; Hazardous Materials; Gastrointestinal Emergencies; Infectious Disease Emergencies; Reye's Syndrome; Bites and Stings; and Hypothermia.

  4. Bioterrorism and pediatric emergency medicine

    Microsoft Academic Search

    Theodore J. Cieslak

    2001-01-01

    Bioterrorism as a national threat poses enormous challenges to emergency department staff and emergency medical services personnel, and requires thoughtful planning and preparations. Several issues are special or unique in contemplating this threat as it applies to pediatric victims and the pediatric emergency medicine community. This report reviews some of the general principles of medical preparedness for bioterrorism, focuses on

  5. Emergency Medical Services Program Guide.

    ERIC Educational Resources Information Center

    Georgia Univ., Athens. Dept. of Vocational Education.

    This program guide contains the standard emergency medical services curriculum for technical institutes in Georgia. The curriculum encompasses the minimum competencies required for entry-level workers in the emergency medical services field, and includes job skills in six emergency medical services divisions outlined in the national curriculum:…

  6. Emergency Preparedness Education: An Overview.

    ERIC Educational Resources Information Center

    Stoffel, Robert, Ed.; LaValla, Patrick, Ed.

    The book is a collection of emergency preparedness instruction materials. It starts with the first chapter of "Living Life's Emergencies" by Robert Stoffel and Patrick LaValla which introduces emergency preparedness education, focusing on six major components (human body management, defensive living, time lag, disaster and civil preparedness,…

  7. Towards Federated Search Based on Web Services

    Microsoft Academic Search

    Jens Graupmann; Michael Biwer; Patrick Zimmer

    2003-01-01

    Some emerging trends in the recent development of the WWW can be ob- served. These trends are technical, like Web Services, as well as semantic, like the integration of ontologies. We propose an architecture for a new kind of federated search system, which takes these aspects and new developments into account. A ma- jor challenge in this context is to

  8. Communicating the Threat of Emerging Infections to the Public

    Microsoft Academic Search

    Vicki Freimuth; Huan W. Linnan; Polyxeni Potter

    2000-01-01

    Communication theory and techniques, aided by the electronic revolution, provide new opportunities and challenges for the effective transfer of laboratory, epidemiologic, surveillance, and other public health data to the public who funds them. We review the applicability of communication theory, particularly the audience-source-message- channel meta-model, to emerging infectious disease issues. Emergence of new infectious organisms, microbial resistance to therapeutic drugs,

  9. Modems for emerging digital cellular-mobile radio system

    Microsoft Academic Search

    Kamilo Feher

    1991-01-01

    Digital modem techniques for emerging digital cellular telecommunications-mobile radio system applications are described and analyzed. In particular, theoretical performance, experimental results, principles of operation, and various architectures of pi\\/4-QPSK (pi\\/4-shifted coherent or differential QPSK) modems for second-generation US digital cellular radio system applications are presented. The spectral\\/power efficiency and performance of the pi\\/4-QPSK modems (American and Japanese digital cellular emerging

  10. Hough transform search for continuous gravitational waves

    SciTech Connect

    Krishnan, Badri; Papa, Maria Alessandra [Max-Planck-Institut fuer Gravitationsphysik, Albert-Einstein-Institut, Am Muehlenberg 1, D-14476 Golm (Germany); Sintes, Alicia M. [Max-Planck-Institut fuer Gravitationsphysik, Albert-Einstein-Institut, Am Muehlenberg 1, D-14476 Golm (Germany); Departament de Fisica, Universitat de les Illes Balears, Cra. Valldemossa Km. 7.5, E-07122 Palma de Mallorca (Spain); Schutz, Bernard F. [Max-Planck-Institut fuer Gravitationsphysik, Albert-Einstein-Institut, Am Muehlenberg 1, D-14476 Golm (Germany); Cardiff University, Cardiff, CF2 3YB (United Kingdom); Frasca, Sergio [Dip. di Fisica, Universita di Roma ''La Sapienza'', P.le A. Moro 2, I-00185 Rome (Italy); INFN, Sezione di Roma, P.le A. Moro 2, I-00185 Rome (Italy); Palomba, Cristiano [INFN, Sezione di Roma, P.le A. Moro 2, I-00185 Rome (Italy)

    2004-10-15

    This paper describes an incoherent method to search for continuous gravitational waves based on the Hough transform, a well-known technique used for detecting patterns in digital images. We apply the Hough transform to detect patterns in the time-frequency plane of the data produced by an earth-based gravitational wave detector. Two different flavors of searches will be considered, depending on the type of input to the Hough transform: either Fourier transforms of the detector data or the output of a coherent matched-filtering type search. We present the technical details for implementing the Hough transform algorithm for both kinds of searches, their statistical properties, and their sensitivities.

  11. Emerging Propulsion Technologies

    NASA Technical Reports Server (NTRS)

    Keys, Andrew S.

    2006-01-01

    The Emerging Propulsion Technologies (EPT) investment area is the newest area within the In-Space Propulsion Technology (ISPT) Project and strives to bridge technologies in the lower Technology Readiness Level (TRL) range (2 to 3) to the mid TRL range (4 to 6). A prioritization process, the Integrated In-Space Transportation Planning (IISTP), was developed and applied in FY01 to establish initial program priorities. The EPT investment area emerged for technologies that scored well in the IISTP but had a low technical maturity level. One particular technology, the Momentum-eXchange Electrodynamic-Reboost (MXER) tether, scored extraordinarily high and had broad applicability in the IISTP. However, its technical maturity was too low for ranking alongside technologies like the ion engine or aerocapture. Thus MXER tethers assumed top priority at EPT startup in FY03 with an aggressive schedule and adequate budget. It was originally envisioned that future technologies would enter the ISP portfolio through EPT, and EPT developed an EPT/ISP Entrance Process for future candidate ISP technologies. EPT has funded the following secondary, candidate ISP technologies at a low level: ultra-lightweight solar sails, general space/near-earth tether development, electrodynamic tether development, advanced electric propulsion, and in-space mechanism development. However, the scope of the ISPT program has focused over time to more closely match SMD needs and technology advancement successes. As a result, the funding for MXER and other EPT technologies is not currently available. Consequently, the MXER tether tasks and other EPT tasks were expected to phased out by November 2006. Presentation slides are presented which provide activity overviews for the aerocapture technology and emerging propulsion technology projects.

  12. Social pediatric emergencies.

    PubMed

    Jacobs, J

    1978-01-01

    A social pediatric emergency invokes the concept of a crisis situation, which often reflects an acute temporary state, the culmination of problems of long duration. The needs demonstrated in child abuse, neglect and deprivation, sexual abuse, the handling of the crisis of birth, pregnancy and abnormality, death and dying, adoption and learning disabilities are related to the family psychodynamic relationships and the doctor team approach. The social pediatrician can play his role as the physician, advocate, activist and educationalist in the many complex situations revealed within family, community and society. PMID:569270

  13. Emerging Markets Data Base

    NSDL National Science Digital Library

    Touted as the "The World's Leading Source of Information of Stock Markets in the Developing World," Emerging Markets Data Base (EMDB) offers up-to-date market data from countries including Indonesia, Pakistan, Jordon, Greece, and Zimbabwe. The International Finance Corporation (IFC) started collecting data for EMDB in 1975 and data currently cover 51 markets and over 2,000 stocks. Monthly data, organized by region, include IFC price indexes and exchange rates against the dollar. Spread sheets of countries's performances, as well as in-depth summaries, also help to illustrate their market conditions. EMDB also includes a daily feed of IFC Investible Indexes.

  14. Corruption in emergency procurement.

    PubMed

    Schultz, Jessica; Søreide, Tina

    2008-12-01

    Corruption in emergency procurement reduces the resources available for life-saving operations, lowers the quality of products and services provided, and diverts aid from those who need it most.(1) It also negatively influences public support for humanitarian relief, both in the affected country and abroad. This paper aims to unpack and analyse the following question in order to mitigate risk: how and where does corruption typically occur, and what can be done? Suggested strategies reflect a multi-layered approach that stresses internal agency control mechanisms, conflict-sensitive management, and the need for common systems among operators. PMID:18435769

  15. Emergency Response Health Physics

    SciTech Connect

    Mena, R., Pemberton, W., Beal, W.

    2012-05-01

    Health physics is an important discipline with regard to understanding the effects of radiation on human health. Topics of discussion included in this manuscript are related to responding to a radiation emergency, and the necessary balance between desired high accuracy laboratory results and rapid turnaround requirements. Considerations are addressed for methodology with which to provide the most competent solutions despite challenges presented from incomplete datasets and, at times, limited methodology. An emphasis is placed on error and uncertainty of sample analysis results, how error affects products, and what is communicated in the final product.

  16. FLOOD! Emergency Management

    NSDL National Science Digital Library

    The Advanced Technology Environmental and Energy Center (ATEEC) provides this learning module on the theme of flood emergency management. The lesson provided asks students to use Google Earth to determine the relationship between their location and flood risk. A student worksheet is provided for the activity as well as presentation slides. Users must download this resource for viewing, which requires a free log-in. There is no cost to download the item. The unit is available in a ZIP file, which contains the individual lesson items.

  17. The emergence of self.

    PubMed

    Kagan, J

    1982-10-01

    Longitudinal and cross-sectioned investigations of children from three different cultural settings reveal the emergence of behaviors during the last half of the second year that imply the first appreciation of standards on prohibited actions, recognition of the ability to gain goals, and awareness of the self's feeling states. It was suggested that these competences were inevitable consequences of maturational changes in the central nervous system as long as children were growing in a world of objects and people. The foundations for a moral evaluation of aggression and self-consciousness appear to be universal milestones of the second year of life. PMID:6182153

  18. Infant feeding in emergencies.

    PubMed

    Kelly, M

    1993-06-01

    Recent experience of emergency relief operations in middle-income countries has shown that infant feeding issues can greatly complicate attempts to protect infant health. The two main problems are: how to protect and support breastfeeding in communities where it is no longer the norm and how to assist artificially fed infants without exposing them to the dramatically increased risks associated with artificial feeding under disaster conditions. This article explores the underlying issues and makes a number of recommendations for policy and programmes. PMID:20958761

  19. Emerging therapies for gout.

    PubMed

    Edwards, N Lawrence; So, Alexander

    2014-05-01

    Over the past decade much has been learned about the mechanisms of crystal-induced inflammation and renal excretion of uric acid, which has led to more specific targeting of gout therapies and a more potent approach to future management of gout. This article outlines agents being developed for more aggressive lowering of urate and more specific anti-inflammatory activity. The emerging urate-lowering therapies include lesinurad, arhalofenate, ulodesine, and levotofisopam. Novel gout-specific anti-inflammatories include the interleukin-1? inhibitors anakinra, canakinumab, and rilonacept, the melanocortins, and caspase inhibitors. The historic shortcomings of current gout treatment may, in part, be overcome by these novel approaches. PMID:24703353

  20. Emerging Sealing Technologies Development

    NASA Technical Reports Server (NTRS)

    2005-01-01

    Under this Cooperative Agreement, the objective was to investigate several emerging sealing technologies of interest to the Mechanical Components Branch of National Aeronautics and Space Administration Glenn Research Center at Lewis Field (NASA GRC). The majority of the work conducted was to support the development of Solid Oxide Fuel Cells for application to aeronautic auxiliary power units, though technical investigations of interest to other groups and projects were also conducted. In general, accomplishments and results were periodically reported to the NASA Technical Monitor, the NASA GRC Seal Team staff, and NASA GRC project management. Several technical reports, journal articles, and presentations were given internally to NASA GRC and to the external public.

  1. Endocrine emergencies in pregnancy.

    PubMed

    Khoo, Chin Meng; Lee, Kok Onn

    2013-12-01

    Endocrine emergencies in pregnancy are rare and are more likely to occur in the absence of good obstetric care. Serious thyroid and diabetes related events in pregnancy are more common because of their higher prevalence in the normal population. Pituitary complications in pregnancy are now relatively rare. A high index of suspicion is needed for early diagnosis, and medical treatment is directed primarily at maintaining maternal hemodynamic stability. A close liaison between an endocrinologist, maternal-fetal specialist and intensivist is critical in optimising both maternal and fetal outcomes. PMID:24016619

  2. Emerging therapies in rosacea.

    PubMed

    Layton, Alison; Thiboutot, Diane

    2013-12-01

    Rosacea is a common skin disorder with multiple symptoms. The emergence of research that furthers understanding of pathophysiological mechanisms has created new targets for disease treatment. Specifically, there is a need for new treatments that address the various erythematic symptoms associated with rosacea. Systemic and topical therapies have both yielded positive results in treating rosacea with various medications. Subantimicrobial-dose doxycycline is one such promising treatment. Development of novel products in the near future should help achieve more satisfactory outcomes for patients. PMID:24229638

  3. Earthquakes and emergence

    NASA Astrophysics Data System (ADS)

    Earthquakes and emerging infections may not have a direct cause and effect relationship like tax evasion and jail, but new evidence suggests that there may be a link between the two human health hazards. Various media accounts have cited a massive 1993 earthquake in Maharashtra as a potential catalyst of the recent outbreak of plague in India that has claimed more than 50 lives and alarmed the world. The hypothesis is that the earthquake may have uprooted underground rat populations that carry the fleas infected with the bacterium that causes bubonic plague and can lead to the pneumonic form of the disease that is spread through the air.

  4. An efficient search method for job-shop scheduling problems

    Microsoft Academic Search

    Leyuan Shi; Yunpeng Pan

    2005-01-01

    We present an efficient search method for job-shop scheduling problems. Our technique is based on an innovative way of relaxing and subsequently reimposing the capacity constraints on some critical operations. We integrate this technique into a fast tabu search algorithm. Our computational results on benchmark problems show that this approach is very effective. Upper bounds for 11 well-known test problems

  5. A Risk Management Architecture for Emergency Integrated Aircraft Control

    NASA Technical Reports Server (NTRS)

    McGlynn, Gregory E.; Litt, Jonathan S.; Lemon, Kimberly A.; Csank, Jeffrey T.

    2011-01-01

    Enhanced engine operation--operation that is beyond normal limits--has the potential to improve the adaptability and safety of aircraft in emergency situations. Intelligent use of enhanced engine operation to improve the handling qualities of the aircraft requires sophisticated risk estimation techniques and a risk management system that spans the flight and propulsion controllers. In this paper, an architecture that weighs the risks of the emergency and of possible engine performance enhancements to reduce overall risk to the aircraft is described. Two examples of emergency situations are presented to demonstrate the interaction between the flight and propulsion controllers to facilitate the enhanced operation.

  6. Radon assay and purification techniques

    SciTech Connect

    Simgen, Hardy [Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg (Germany)] [Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg (Germany)

    2013-08-08

    Radon is a source of background in many astroparticle physics experiments searching for rare low energy events. In this paper an overview about radon in the field is given including radon detection techniques, radon sources and material screening with respect to radon emanation. Finally, also the problem of long-lived radioactive {sup 222}Rn-daughters and the question of gas purification from radon is addressed.

  7. Kinetic activation-relaxation technique

    Microsoft Academic Search

    Laurent Karim Béland; Peter Brommer; Fedwa El-Mellouhi; Jean-François Joly; Normand Mousseau

    2011-01-01

    We present a detailed description of the kinetic activation-relaxation technique (k-ART), an off-lattice, self-learning kinetic Monte Carlo (KMC) algorithm with on-the-fly event search. Combining a topological classification for local environments and event generation with ART nouveau, an efficient unbiased sampling method for finding transition states, k-ART can be applied to complex materials with atoms in off-lattice positions or with elastic

  8. Emergency responders' critical infrared (ERCI)

    NASA Astrophysics Data System (ADS)

    Konsin, Larry S.

    2004-08-01

    Emergency Responders (Fire, Police, Medical, and Emergency Management) face a high risk of injury or death. Even before September 11, 2001, public and private organizations have been driven to better protect Emergency Responders through education, training and improved technology. Recent research on Emergency Responder safety, health risks, and personal protective requirements, shows infrared (IR) imaging as a critical need. Today"s Emergency Responders are increasingly challenged to do more, facing demands requiring technological assistance and/or solutions. Since the introduction of Fire Service IR imaging in the mid 1990s, applications have increased. Emergency response IR is no longer just seeing through smoke to find victims or the seat of a fire. Many more mission critical needs now exist across the broad spectrum of emergency response. At the same time, Emergency Responder injuries and deaths are increasing. The Office of Domestic Preparedness (ODP) has also recognized IR imaging as critical in protecting our communities -- and in preventing many of the injuries and deaths of Emergency Responders. Currently, only 25% of all fire departments (or less than 7% of individual firefighters) have IR imaging. Availability to Police, EMS and Emergency Management is even lower. Without ERCI, Emergency Responders and our communities are at risk.

  9. Orion Emergency Mask Approach

    NASA Technical Reports Server (NTRS)

    Tuan, George C.; Graf, John C.

    2009-01-01

    Emergency mask approach on Orion poses a challenge to the traditional Shuttle or Station approaches. Currently, in the case of a fire or toxic spill event, the crew utilizes open loop oxygen masks that provide the crew with oxygen to breath, but also dumps the exhaled oxygen into the cabin. For Orion, with a small cabin volume, the extra oxygen will exceed the flammability limit within a short period of time, unless a nitrogen purge is also provided. Another approach to a fire or toxic spill event is the use of a filtering emergency masks. These masks utilize some form of chemical beds to scrub the air clean of toxic providing the crew safe breathing air for a period without elevating the oxygen level in the cabin. Using the masks and a form of smoke-eater filter, it may be possible to clean the cabin completely or to a level for safe transition to a space suit to perform a cabin purge. Issues with filters in the past have been the reaction time, breakthroughs, and high breathing resistance. Development in a new form of chemical filters has shown promise to make the filtering approach feasible.

  10. Orion Emergency Mask Approach

    NASA Technical Reports Server (NTRS)

    Tuan, George C.; Graf, John C.

    2008-01-01

    Emergency mask approach on Orion poses a challenge to the traditional Shuttle or Station approaches. Currently, in the case of a fire or toxic spill event, the crew utilizes open loop oxygen masks that provide the crew with oxygen to breath, but also dumps the exhaled oxygen into the cabin. For Orion, with a small cabin volume, the extra oxygen will exceed the flammability limit within a short period of time, unless a nitrogen purge is also provided. Another approach to a fire or toxic spill event is the use of a filtering emergency masks. These masks utilize some form of chemical beds to scrub the air clean of toxic providing the crew safe breathing air for a period without elevating the oxygen level in the cabin. Using the masks and a form of smoke-eater filter, it may be possible to clean the cabin completely or to a level for safe transition to a space suit to perform a cabin purge. Issues with filters in the past have been the reaction temperature and high breathing resistance. Development in a new form of chemical filters has shown promise to make the filtering approach feasible.

  11. Emergency contraception: clinical outcomes.

    PubMed

    Glasier, Anna

    2013-03-01

    Emergency contraception (EC) is widely used to prevent unwanted pregnancy. This review considers the safety and efficacy of three commonly used methods -- levonorgestrel (LNG-EC), ulipristal acetate (UPA) and the copper intrauterine device. All are extremely safe, and side effects are minimal. Concerns about increased risks of ectopic pregnancy after EC use have proved unfounded, and possible teratogenic effects seem unlikely. Although the true effectiveness of EC is impossible to estimate, recent research suggests that LNG-EC prevents around 50% of expected pregnancies in women using the method within 72 h of intercourse, whereas UPA appeared to prevent almost two thirds of pregnancies. Emergency intrauterine device insertion probably prevents over 95% of pregnancies. However, although improved accessibility of EC has clearly led to increased use, it does not appear to have had any public health benefit in reducing unintended pregnancy rates. Most of the data on sexual behavior following improved access to EC do not show any detrimental effect on subsequent use of other more effective methods of contraception or on the incidence of unintended pregnancy or sexually transmitted infection. However, unless these other methods of contraception are also made easily available from pharmacies, improved access to EC risks unlinking its use with use of subsequent ongoing contraception. PMID:23040128

  12. Emergency Response Health Physics

    SciTech Connect

    Mena, RaJah [National Security Technologies, LLC, Remote Sensing Laboratory–Nellis; Pemberton, Wendy [National Security Technologies, LLC, Remote Sensing Laboratory–Nellis; Beal, William [Remote Sensing Laboratory at Andrews

    2012-05-01

    Health physics is an important discipline with regard to understanding the effects of radiation on human health; however, there are major differences between health physics for research or occupational safety and health physics during a large-scale radiological emergency. The deployment of a U.S. Department of Energy/National Nuclear Security Administration (DOE/NNSA) monitoring and assessment team to Japan in the wake of the March 2011 accident at Fukushima Daiichi Nuclear Power Plant yielded a wealth of lessons on these difference. Critical teams (CMOC (Consequence Management Outside the Continental U.S.) and CMHT (Consequence Management Home Team) ) worked together to collect, compile, review, and analyze radiological data from Japan to support the response needs of and answer questions from the Government of Japan, the U.S. military in Japan, the U.S. Embassy and U.S. citizens in Japan, and U.S. citizens in America. This paper addresses the unique challenges presented to the health physicist or analyst of radiological data in a large-scale emergency. A key lesson learned was that public perception and the availability of technology with social media requires a diligent effort to keep the public informed of the science behind the decisions in a manner that is meaningful to them.

  13. Hypertensive emergencies in children.

    PubMed

    Hari, Pankaj; Sinha, Aditi

    2011-05-01

    Hypertensive emergencies, though uncommon in children, are potentially life threatening. While targeting blood pressure reduction to below the 90th percentile for age, gender and height, mean arterial blood pressure should be gradually lowered by one-fourth of the planned reduction over 8-12 h, a further fourth over the next 8-12 h, and the final 50% over the 24 h after that. Frequent invasive or non-invasive blood pressure monitoring is essential, as is monitoring for sensorial alteration and loss of papillary reflexes. Few antihypertensive agents have been examined in children. Continuous intravenous infusions of short acting drugs such as nitroprusside, labetalol and nicardipine are preferred to intravenous boluses of hydralazine or diazoxide. If severe symptoms are absent, oral agents such as nifedipine, clonidine, minoxidil, hydralazine, labetalol, captopril, and prazosin may be used. Nicardipine and labetalol are particularly suited in emergencies with intracranial bleeding or ischemic stroke, while furosemide, sodium nitroprusside and nitroglycerine are useful in congestive cardiac failure. Therapy with oral antihypertensive drugs should be instituted within 6-12 h of parenteral therapy, and the latter gradually withdrawn over the next 12-48 h. Oral agents have limited application as primary therapy, except when administration of intravenous infusion is likely to be delayed. This article provides a summary of the clinical approach to evaluation and management of severe symptomatic hypertension in children. PMID:21271305

  14. Park Search

    NSDL National Science Digital Library

    Its never too early to begin planning your summer vacation, especially in the depths of winter; those with cabin fever can get a jump on their outdoor recreation plans at this site, provided by L.L. Bean. Users can search this database of over 1,400 state and national parks, forests, and wildlife refuges by state, region, and/or activities in which they are interested (including winter sports for all-season recreators). Search returns include contact information, an overview of the park/ forest and its highlights, photos, and a list of approved or available activities.

  15. Diagnosing meniscal tears in the emergency department.

    PubMed

    Doherty, Megan; Hoskins, Rebecca

    2015-06-01

    Acute meniscal knee injuries can lead to instability of the joint if they are left untreated, but clinical examinations of patients' acutely injured knees can be challenging because of the pain and swelling involved. Although magnetic resonance imaging and arthroscopy are the gold standard investigations for the diagnosis of meniscal tears they cannot always be carried out in acute or emergency department settings. It is therefore essential that emergency care practitioners have good clinical examination skills to ensure safe and effective patient management, diagnosis, and outcomes, as well as the skills and knowledge required to carry out meniscal tear tests. This article reviews the literature on the most common examination techniques associated with acute injuries, especially meniscal injuries, to knees: joint line tenderness assessment, McMurray's test and the Apley's grind test. It analyses the sensitivity and specificity for each test to help practitioners understand the clinical significance of positive and negative findings. PMID:26050782

  16. Neutron Energy Measurements in Radiological Emergency Response Applications

    SciTech Connect

    Sanjoy Mukhopadhyay, Paul Guss, Michael Hornish, Scott Wilde, Tom Stampahar, Michael Reed

    2009-04-30

    We present significant results in recent advances in the determination of neutron energy. Neutron energy measurements are a small but very significant part of radiological emergency response applications. Mission critical information can be obtained by analyzing the neutron energy given off from radioactive materials. In the case of searching for special nuclear materials, neutron energy information from an unknown source can be of paramount importance.

  17. Atherosclerotic Renal Artery Stenosis: Association with Emerging Vascular Risk Factors

    Microsoft Academic Search

    Kosmas I. Paraskevas; George Hamilton; Jenny M. Cross; Dimitri P. Mikhailidis

    2008-01-01

    Background: The established risk factors for atherosclerotic renal artery stenosis (ARAS) include hypertension, diabetes mellitus, dyslipidemia, obesity,smoking, old age and family history. In the last few years, several emerging risk factors have been proposed as predictors of ARAS, namely homocysteine, fibrinogen, C-reactive protein, lipoprotein(a) and creatinine. Methods: We searched Pubmed\\/Medline for studies investigating the prognostic value of each of these

  18. Nanofabrication Techniques

    NSDL National Science Digital Library

    This page from Foothill-De Anza Community College describes a course on nanoscience for those who need an introduction to the subject. This course is the fifth in a five course series that leads to a certificate in nanoscience, nanotechnology, and nanomaterials engineering. Students will obtain a survey of fabrication techniques as well as "hands-on experience creating thin film materials, and quality control 'shadowing' in a clean energy technology fabrication facility." The projects required by the class are also described.

  19. Densitometry Techniques

    Microsoft Academic Search

    Sydney Lou Bonnick; RADIOGRAPHIC ABSORPTIOMETRY

    \\u000a Clinical densitometry is relatively new but densitometry itself is actually quite old. It was first described over 100 years\\u000a ago in the field of dental radiology as dentists attempted to quantify the bone density in the mandible(1,2). With today’s\\u000a techniques bone density can be quantified in almost every region of the skeleton. The extraordinary technical advances in\\u000a recent years have

  20. Electrochemical Techniques

    SciTech Connect

    Chen, Gang; Lin, Yuehe

    2008-07-20

    Sensitive and selective detection techniques are of crucial importance for capillary electrophoresis (CE), microfluidic chips, and other microfluidic systems. Electrochemical detectors have attracted considerable interest for microfluidic systems with features that include high sensitivity, inherent miniaturization of both the detection and control instrumentation, low cost and power demands, and high compatibility with microfabrication technology. The commonly used electrochemical detectors can be classified into three general modes: conductimetry, potentiometry, and amperometry.