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1

Quantify uncertain emergency search techniques (QUEST) -- Theory and user`s guide  

SciTech Connect

As recent world events show, criminal and terrorist access to nuclear materials is a growing national concern. The national laboratories are taking the lead in developing technologies to counter these potential threats to the national security. Sandia National laboratories, with support from Pacific Northwest National Laboratory and the Bechtel Nevada, Remote Sensing Laboratory, has developed QUEST (a model to Quantify Uncertain Emergency Search Techniques), to enhance the performance of organizations in the search for lost or stolen nuclear material. In addition, QUEST supports a wide range of other applications, such as environmental monitoring, nuclear facilities inspections, and searcher training. QUEST simulates the search for nuclear materials and calculates detector response for various source types and locations. The probability of detecting a radioactive source during a search is a function of many different variables, including source type, search location and structure geometry (including shielding), search dynamics (path and speed), and detector type and size. Through calculation of dynamic detector response, QUEST makes possible quantitative comparisons of various sensor technologies and search patterns. The QUEST model can be used as a tool to examine the impact of new detector technologies, explore alternative search concepts, and provide interactive search/inspector training.

Johnson, M.M.; Goldsby, M.E.; Plantenga, T.D.; Porter, T.L.; West, T.H.; Wilcox, W.B. [Sandia National Labs., Livermore, CA (United States). Systems Studies Dept.; Hensley, W.K. [Pacific Northwest National Lab., Richland, WA (United States). Nuclear Chemistry Section

1998-01-01

2

QUEST: A model to quantify uncertain emergency search techniques, theory and application  

SciTech Connect

As recent world events show, criminal and terrorist access to nuclear materials is a growing national concern. The national laboratories are taking the lead in developing technologies to counter these potential threats to our national security. Sandia National Laboratories, with support from Pacific Northwest Laboratory and the Remote Sensing Laboratory, has developed QUEST (a model to Quantify Uncertain Emergency Search Techniques), to enhance the performance of organizations in the search for lost or stolen nuclear material. In addition, QUEST supports a wide range of other applications, such as environmental monitoring, nuclear facilities inspections, and searcher training. QUEST simulates the search for nuclear materials and calculates detector response fro various source types and locations. The probability of detecting a radioactive source during a search is a function of many different variables. Through calculation of dynamic detector response, QUEST makes possible quantitative comparisons of various sensor technologies and search patterns. The QUEST model can be used to examine the impact of new detector technologies, explore alternative search concepts, and provide interactive search/inspector training.

Johnson, M.M.; Goldsby, M.E.; Plantenga, T.D.; Wilcox, W.B. [Sandia National Labs., Livermore, CA (United States); Hensley, W.K. [Pacific Northwest Lab., Richland, WA (United States)

1996-12-01

3

Computational models to quantify uncertain emergency search techniques -- A comparison of measured and synthetic gamma-ray detector response functions  

SciTech Connect

As recent world events show, criminal and terrorist access to nuclear materials is a growing national concern. The national laboratories have developed quantitative models to simulate the response of detection equipment when looking for lost or stolen nuclear material. SYNTH, a code written to synthesize typical gamma-ray spectroscopy experiments, and QUEST, a model to Quantify Uncertain Emergency Search Techniques, calculate the response functions of gamma-ray detectors for arbitrary source types and shielding configurations. In addition, QUEST provides an interactive, three-dimensional user interface supporting the virtual quest for nuclear materials, making possible quantitative comparisons of various sensor technologies and inspection methodologies. The probability of detecting a radioactive source during an inspection is a function of many different variables, including source type, structure geometry (including shielding), inspection dynamics (path and speed), detector (type, size, and resolution), and analysis algorithms. The authors present the results of their study comparing the synthetic Sodium Iodide (NaI) and Germanium (Ge) detector responses generated by both SYNTH and QUEST with those generated by real detectors deployed in the field. Quantitative models, such as the ones presented here, are important since they, (1) allow inspection teams to maximize the probability of finding materials of interest, (2) aid in the development of new instruments and detection techniques, and (3) support other diverse applications including environmental monitoring, nuclear facilities inspections, and radiation safety responder training.

Johnson, M.M.; Goldsby, M.E.; Wilcox, W.B. [Sandia National Labs., Livermore, CA (United States); Hensley, W.K. [Pacific Northwest National Lab., Richland, WA (United States); Hansen, R.G. [Bechtel Nevada, Las Vegas, NV (United States). Remote Sensing Lab.

1997-11-01

4

Improved Search Techniques  

NASA Technical Reports Server (NTRS)

Thousands of millions of documents are stored and updated daily in the World Wide Web. Most of the information is not efficiently organized to build knowledge from the stored data. Nowadays, search engines are mainly used by users who rely on their skills to look for the information needed. This paper presents different techniques search engine users can apply in Google Search to improve the relevancy of search results. According to the Pew Research Center, the average person spends eight hours a month searching for the right information. For instance, a company that employs 1000 employees wastes $2.5 million dollars on looking for nonexistent and/or not found information. The cost is very high because decisions are made based on the information that is readily available to use. Whenever the information necessary to formulate an argument is not available or found, poor decisions may be made and mistakes will be more likely to occur. Also, the survey indicates that only 56% of Google users feel confident with their current search skills. Moreover, just 76% of the information that is available on the Internet is accurate.

Albornoz, Caleb Ronald

2012-01-01

5

Lidar techniques for search and rescue  

SciTech Connect

Four techniques for using LIDAR in Search and Rescue Operations will be discussed. The topic will include laser retroreflection, laser-induced fluorescence in the visible, laser-induced fluorescence during daylight hours, and laser-induced fluorescence in the uv. These techniques use high-repetition rate lasers at a variety of frequencies to induce either fluorescence in dye markers or retroreflection from plastic corner cubes on life preservers and other emergency markers.

Cabral, W.L.

1985-01-01

6

[Invasive emergency techniques--cricothyroidotomy].  

PubMed

On-scene invasive emergency procedures, such as cricothyroidotomy, chest drain, intraosseous puncture or even on-field-amputation, are often unavoidable, when indicated, and present a major challenge for the emergency physician. Personal, temporal or local conditions are often unsuitable. Even with regular intervention by the emergency medical service, "last resort" measures occur very infrequently, particularly in relation to paediatric emergencies. As well as theoretical training, practice-oriented course concepts are essential in order to achieve high quality in these procedures. This article presents the use of cricothyroidotomy on adults and children, with reference to indication, implementation, problems and risks. It is part of a series of four articles on the subject of invasive emergency techniques. PMID:24792594

Hess, Thorsten; Stuhr, Markus; Knacke, Peer-Gunnar; Reifferscheid, Florian; Kerner, Thoralf

2014-04-01

7

[Invasive emergency techniques - decompression of the pleura].  

PubMed

On-scene invasive emergency procedures, such as cricothyroidotomy, chest drain, intraosseous puncture or even on-field-amputation, are often unavoidable, when indicated, and present a major challenge for the emergency physician. Personal, temporal or local conditions are often unsuitable. Even with regular intervention by the emergency medical service, "last resort" measures occur very infrequently, particularly in relation to paediatric emergencies. Beside a theoretical education, practice-oriented course concepts are necessary to achieve a high quality of these measures. This article presents the use of decompression of the pleura on adults and children, with reference to indication, implementation, problems and risks. It is the second part of a series of four articles on the subject of invasive emergency techniques. PMID:24863329

Hess, Thorsten; Knacke, Peer Gunnar; Stuhr, Markus; Reifferscheid, Florian; Kerner, Thoralf

2014-05-01

8

Marine Search, Rescue and Emergency Preparedness Study.  

National Technical Information Service (NTIS)

The National Water Safety Congress and its study team made a survey of the capability for search and rescue on the inland waters of sixteen central states dealing mainly with waters administered by federal agencies, using their contacts with the Corps of ...

1975-01-01

9

Search Is an Emergency: A Field Coordinator's Guide for Managing the Search Function.  

ERIC Educational Resources Information Center

The pocket-sized guide book is intended for law enforcement and land management agencies responsible for land-based search and rescue missions and is also useful for outdoor leaders. The information in the book is based on two premises, that a search is an emergency situation and that a search is a classic mystery. The guidebook contains…

Lavalla, Rick; And Others

10

Emergency medicine techniques and the forensic autopsy.  

PubMed

Emergency medicine measures often have to be carried out under suboptimal conditions in emergency situations and require invasive patient treatment. In the case of a fatal outcome these measures have to be evaluated at autopsy, regarding indications, correct implementation and possible complications. As well, alongside the more familiar procedures--such as endotracheal intubation, insertion of chest drains, external cardiac massage and cannulation of central and peripheral veins--there are alternative techniques being increasingly applied, that include new tools for the management of hemorrhagic shock, drug delivery and alternative airway management devices. On the one hand, all of these measures are essential for the survival and appropriate treatment of the injured and/or sick patient, but on the other hand they can damage the patient and thus contain a significant risk of both medical and forensic relevance for the patient and the physician. In the following review we provide an overview of established, new and alternative techniques for emergency airway management, administration of drugs and management of hemorrhagic shock. The aim is to facilitate the understanding and autopsy evaluation of current emergency medicine techniques. PMID:22872361

Buschmann, Claas; Schulz, Thomas; Tsokos, Michael; Kleber, Christian

2013-03-01

11

Managing Multiorganizational Emergency Responses: Emergent Search and Rescue Networks in Natural Disaster and Remote Area Settings.  

National Technical Information Service (NTIS)

Those responsible for emergency search and rescue actions--seeing to it that the lost are found, the injured rescued, and the dead retrieved--must understand better how to manage such urgent but often loosely organized operations. In addition, the search ...

T. E. Drabek H. L. Tamminga T. S. Kilijanek C. R. Adams

1981-01-01

12

Emergency airway management: common ventilation techniques.  

PubMed

Maintaining a patient's airway and facilitating breathing are the main priorities during any emergency situation in which breathing is compromised. The key to safe management of an airway is thorough assessment, primarily to ensure the airway is patent. In an emergency situation, a bag-valve-mask may be the most effective way to assist ventilation. If ventilation is required for prolonged periods in an emergency situation, then endotracheal intubation should be performed. This involves the placement of a cuffed, endotracheal tube in the trachea, through which ventilation is maintained. Each tracheal intubation event should be anticipated as a potentially difficult intubation. Longer term ventilatory support may be achieved by the use of mechanical ventilators, which are designed to assist the movement of gases (air) into and out of a patient's lungs, while minimising the work and effort of breathing. This article provides nurses with an overview of the techniques and equipment that is most often used within emergency and intensive care units to maintain the patency of a patient's airway and provide ventilatory support. PMID:23588011

Higginson, Ray; Parry, Andy

13

HYPER-HEURISTICS: AN EMERGING DIRECTION IN MODERN SEARCH TECHNOLOGY  

Microsoft Academic Search

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

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

2003-01-01

14

Bimanual endoscopic orbital biopsy. An emerging technique.  

PubMed

Diagnostic biopsy specimens from six posterior orbital lesions have been obtained under direct endoscopic view with either a fine needle aspiration or an intracannular microbiopsy forcep. This method is comparable to earlier fine needle aspiration techniques, but has the decided advantage of providing a specimen from visually indentified abnormal tissue. In those cases where inadequate specimens are obtained by fine needle aspiration, a microforcep is used to obtain a substantial specimen. The microinvasive endoscopic biopsy technique of the Orbital Unit at Pacific Medical Center is described with an analysis of six cases. The emerging technology of fiberoptic illumination, minified color video cameras, sophisticated imaging, efficient microsurgical instruments and laser delivery methods make the potential for deep orbital endoscopic microinvasive surgery exciting. PMID:3974993

Norris, J L; Stewart, W B

1985-01-01

15

Information Spread of Emergency Events: Path Searching on Social Networks  

PubMed Central

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.

Hu, Hongzhi; Wu, Tunan

2014-01-01

16

A Search for Helioseismic Signature of Emerging Active Regions  

NASA Astrophysics Data System (ADS)

Using SOHO/MDI and GONG observations we present time-distance deep-focusing measurements to examine the deeper layers of the solar convective zone. The constructed travel-time maps show 10 - 15 second perturbations at depths of 40 - 75 Mm around active region locations before their emergence to the solar surface. The majority of the active regions used in this study were the same as those used in the recent work published by Ilonidis, Zhao, and Kosovichev ( Science 333, 993, 2011). In order to confirm the capability of time-distance measurements to detect emerging active regions, we used a technique similar to their time-distance scheme. Our measurements only in some cases show a similar travel-time anomaly. Additionally, we have shown that the technique utilized in our study can provide more spatial details of the emerging flux configurations.

Kholikov, S.

2013-10-01

17

Bomb Threats and Bomb Search Techniques.  

ERIC Educational Resources Information Center

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…

Department of the Treasury, Washington, DC.

18

Automatic search of geospatial features for disaster and emergency management  

NASA Astrophysics Data System (ADS)

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.

Zhang, Chuanrong; Zhao, Tian; Li, Weidong

2010-12-01

19

Locating Elusive Science Information: Some Search Techniques.  

ERIC Educational Resources Information Center

Examines several points in the cycle of publication of scientific research results--informal presentations, conference presentations, technical report literature, journal articles, abstracts, scientific reviews, treatises, textbooks--and recommends search strategies for locating needed references in a library. Eight references are listed. (EJS)

Bates, Marcia J.

1984-01-01

20

New and Emerging Techniques for Imaging Surfaces.  

National Technical Information Service (NTIS)

The development of techniques for real-time in-situ imaging of surfaces and for spatially resolved spectroscopic imaging of surfaces is reviewed. The capabilities of Field-Ion Microscopy, In-Situ Transmission Electron Microscopy, Low-Energy Electron Micro...

E. D. Williams L. D. Marks

1994-01-01

21

Hip arthroscopy: an emerging technique and indications.  

PubMed

Hip arthroscopy is one of the most rapidly evolving arthroscopy techniques. It combines the benefits of a minimally invasive procedure and a short rehabilitation period. Improved instrumentation and technical skills have advanced our ability to accurately diagnose and treat various conditions. The role of this procedure continues to evolve with new indications that might change the outcome of degenerative joint disease of the hip joint. Hip arthroscopy is indicated for both traumatic and atraumatic intra and extra-articular conditions. Femoroacetabular impingement (FAI) is increasingly recognized as a disorder that can lead to progressive articular chondral and labral injury. A variety of arthroscopic techniques allows the treatment of labral and acetabular rim pathology as well as peripheral compartment femoral head-neck abnormalities. It is now recognized that labral tears that were traditionally treated with simple debridement are often associated with underlying FAI. Hip arthroscopy is also being used for surgery to the structures surrounding the hip as snapping hip syndromes, greater trochanteric pain syndrome, and arthroscopic repair of abductor tendon tears. Better understanding of the arthroscopic anatomy, improved operative techniques, lowered complication rate and objective outcome measuring tools will further define the optimal role of hip arthroscopy and improve its outcome. PMID:22675858

Rath, Ehud; Tsvieli, Oren; Levy, Ofer

2012-03-01

22

Building Domain-Specific Search Engines with Machine Learning Techniques  

Microsoft Academic Search

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

Andrew McCallum; Kamal Nigam; Jason Rennie; Kristie Seymore

1999-01-01

23

Teaching Web Search Skills: Techniques and Strategies of Top Trainers  

ERIC Educational Resources Information Center

Here is a unique and practical reference for anyone who teaches Web searching. Greg Notess shares his own techniques and strategies along with expert tips and advice from a virtual "who's who" of Web search training: Joe Barker, Paul Barron, Phil Bradley, John Ferguson, Alice Fulbright, Ran Hock, Jeff Humphrey, Diane Kovacs, Gary Price, Danny…

Notess, Greg R.

2006-01-01

24

Generation of transfer functions with stochastic search techniques  

Microsoft Academic Search

This paper presents a novel approach to assist the user in exploring appropriate transfer functions for the visualization of volumetric datasets. The search for a transfer function is treated as a parameter optimization problem and addressed with stochastic search techniques. Starting from an initial popula- tion of (random or pre-defined)transferfunctions,the evolution of the stochasticalgorithmsis controlledby either direct user selection of

Taosong He; Lichan Hong; Arie E. Kaufman; Hanspeter Pfister

1996-01-01

25

Application of artificial intelligence techniques to emergency response facilities architecture  

SciTech Connect

This paper reports on nuclear power plants designed, equipped, and operated within safety envelopes. Unanticipated failures, operator's malfunctions, and external events cause emergency conditions. Despite the fact that in the Three Mile Island and Chernobyl events the systems failed, there have been multitudes of other situations where systems succeeded. The use of artificial intelligence and expert systems techniques provide useful tools to meet those challenges. The application includes three phases: diagnostics, critical functions restoration, and optimum recovery. The use of expert systems techniques to enhance the operator functions in the emergency conditions are outlined.

Fouad, H.Y. (Westinghouse Hanford Co., Richland, WA (United States))

1991-01-01

26

Localization Versus Abstraction: A Comparison of Two Search Reduction Techniques  

NASA Technical Reports Server (NTRS)

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.

Lansky, Amy L.

1992-01-01

27

Improved Techniques for Caches of Search Engines Results  

Microsoft Academic Search

Result caching is an efficient technique for reducing the query processing load, hence it is commonly used in search engines. In this paper, we study query result caching and proposes a cache management policy for achieving higher hit ratios compared to traditional heuristics methods. Our cache management policy comprises an eviction policy and an admission policy, and it divides the

Hui Li; Cun-hua Li; Yun Hu; Shu Zhang; Xia Wang

2010-01-01

28

Improved techniques for result caching in web search engines  

Microsoft Academic Search

Query processing is a major cost factor in operating large web search engines. In this paper, we study query result caching, one of the main techniques used to optimize query processing performance. Our first contribution is a study of result caching as a weighted caching problem. Most previous work has focused on optimizing cache hit ratios, but given that processing

Qingqing Gan; Torsten Suel

2009-01-01

29

Grid Clustering Algorithm with Simple Leaping Search Technique  

Microsoft Academic Search

Data mining is a critical data analysis technique for extracting hidden information from large databases for business or industrial applications. As the size of organizational databases increase, finding information and knowledge efficiently is essential. In the past, numerous clustering algorithms based on grid-clustering schemes have been proposed. This study proposes, simple-leaping search (SLS), a new grid-based clustering algorithm that partitions

Cheng-Fa Tsai; Jun-Hao Zhang

2012-01-01

30

Search for Chameleon Particles Using a Photon-Regeneration Technique  

SciTech Connect

We report the first results from the GammeV search for chameleon particles, which may be created via photon-photon interactions within a strong magnetic field. Chameleons are hypothesized scalar fields that could explain the dark energy problem. We implement a novel technique to create and trap the reflective particles within a jar and to detect them later via their afterglow as they slowly convert back into photons. These measurements provide the first experimental constraints on the couplings of chameleons to photons.

Chou, A. S. [Center for Cosmology and Particle Physics, New York University, 4 Washington Place, New York, New York 10003 (United States); Wester, W.; Baumbaugh, A.; Irizarry-Valle, Y.; Mazur, P. O.; Steffen, J. H.; Tomlin, R.; Yang, X.; Yoo, J. [Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510 (United States); Gustafson, H. R. [Department of Physics, University of Michigan, 450 Church Street, Ann Arbor, Michigan 48109 (United States); Upadhye, A. [Kavli Institute for Cosmological Physics, University of Chicago, Illinois 60637 (United States); Weltman, A. [Department of Applied Mathematics and Theoretical Physics, Cambridge CB2 0WA (United Kingdom); Cosmology and Gravity Group, University of Cape Town, Rondebosch, Private Bag, 7700 (South Africa)

2009-01-23

31

Search for chameleon particles using a photon-regeneration technique.  

PubMed

We report the first results from the GammeV search for chameleon particles, which may be created via photon-photon interactions within a strong magnetic field. Chameleons are hypothesized scalar fields that could explain the dark energy problem. We implement a novel technique to create and trap the reflective particles within a jar and to detect them later via their afterglow as they slowly convert back into photons. These measurements provide the first experimental constraints on the couplings of chameleons to photons. PMID:19257328

Chou, A S; Wester, W; Baumbaugh, A; Gustafson, H R; Irizarry-Valle, Y; Mazur, P O; Steffen, J H; Tomlin, R; Upadhye, A; Weltman, A; Yang, X; Yoo, J

2009-01-23

32

Emergent Semantics in Knowledge Sifter: An Evolutionary Search Agent Based on Semantic Web Services  

Microsoft Academic Search

This paper addresses the various facets of emergent semantics in content retrieval systems such as Knowledge Sifter, an architecture and system based on the use of specialized agents to coordinate the search for knowledge in heterogeneous sources, including the Web, semi-structured data, relational data and the Semantic Web. The goal is to provide just-in-time knowledge to users based on their

Larry Kerschberg; Hanjo Jeong; Wooju Kim

2006-01-01

33

Using the Technique of Journal Writing to Learn Emergency Psychiatry  

ERIC Educational Resources Information Center

Objective: The authors discuss journal writing in learning emergency psychiatry. Methods: The journal of a psychiatry intern rotating through an emergency department is used as sample material for analysis that could take place in supervision or a resident support group. A range of articles are reviewed that illuminate the relevance of journal…

Bhuvaneswar, Chaya; Stern, Theodore; Beresin, Eugene

2009-01-01

34

Joint data and channel estimation using blind trellis search techniques  

Microsoft Academic Search

A novel method of maximum likelihood sequence estimation is proposed for data that are transmitted over unknown linear channels. This procedure does not require a startup sequence for estimating the channel impulse response. Rather, the data and the channel are simultaneously estimated. It is implemented without any loss of optimality by a trellis search algorithm which searches for the best

Nambi Seshadri

1994-01-01

35

Techniques for searching the CINAHL database using the EBSCO interface.  

PubMed

The cumulative index to Nursing and Allied Health Literature (CINAHL) is a useful research tool for accessing articles of interest to nurses and health care professionals. More than 2,800 journals are indexed by CINAHL and can be searched easily using assigned subject headings. Detailed instructions about conducting, combining, and saving searches in CINAHL are provided in this article. Establishing an account at EBSCO further allows a nurse to save references and searches and to receive e-mail alerts when new articles on a topic of interest are published. PMID:17418134

Lawrence, Janna C

2007-04-01

36

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

SciTech Connect

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.

Juan D. Deaton

2008-05-01

37

Techniques for Searching the CINAHL Database Using the EBSCO Interface  

Microsoft Academic Search

•THE CUMULATIVE INDEX to Nursing and Allied Health Literature (CINAHL) is a useful research tool for accessing articles of interest to nurses and health care professionals.•MORE THAN 2,800 JOURNALS are indexed by CINAHL and can be searched easily using assigned subject headings.•DETAILED INSTRUCTIONS about conducting, combining, and saving searches in CINAHL are provided in this article.•ESTABLISHING AN ACCOUNT at EBSCO

Janna C. Lawrence

2007-01-01

38

Analysis of Piezoelectric Structural Sensors with Emergent Computing Techniques.  

National Technical Information Service (NTIS)

The purpose of this project was to try to interpret the results of some tests that were performed earlier this year and to demonstrate a possible use of emergence in computing to solve IVHM problems. The test data used was collected with piezoelectric sen...

D. L. Ramers

2005-01-01

39

Search-based software engineering  

Microsoft Academic Search

This paper claims that a new field of Software Engineering research and practice is emerging: Search-Based Software Engineering. The paper argues that Software Engineering is ideal for the application of metaheuristic search techniques, such as genetic algorithms, simulated annealing and tabu search. Such search-based techniques could provide solutions to the difficult problems of balancing competing (and sometimes inconsistent) constraints and

Mark Harman; Bryan F. Jones

2001-01-01

40

Scheduling Algorithms for Input Queued Switches Using Local Search Technique  

Microsoft Academic Search

Input Queued switches have been very well studied in the recent past. The Maximum Weight Matching (MWM) algorithm is known to deliver 100% throughput under any admissible traffic. However, MWM is not practical for its high computational complexity O(N3). In this paper, we study a class of ap- proximations to MWM from the point of view of local search. Firstly,

Yanfeng Zheng; Simin He; Shutao Sun; Wen Gao

2005-01-01

41

Noninvasive Evaluation of Portal Hypertension: Emerging Tools and Techniques  

PubMed Central

Portal hypertension is the main cause of complications in patients with cirrhosis. However, evaluating the development and progression of portal hypertension represents a challenge for clinicians. There has been considerable focus on the potential role of noninvasive markers of portal hypertension that could be used to stratify patients with respect to the stage of portal hypertension and to monitor disease progression or treatment response in a longitudinal manner without having to undertake repeated invasive assessment. The pathogenesis of portal hypertension is increasingly understood and emerging knowledge of the vascular processes that underpin portal hypertension has paved the way for exploring novel biomarkers of vascular injury, angiogenesis, and endothelial dysfunction. In this paper we focus on the pathogenesis of portal hypertension and potential non-invasive biomarkers with particular emphasis on serum analytes.

Snowdon, V. K.; Guha, N.; Fallowfield, J. A.

2012-01-01

42

Emerging Synthetic Techniques for Protein-Polymer Conjugations  

PubMed Central

Protein-polymer conjugates are important in diverse fields including drug delivery, biotechnology, and nanotechnology. This feature article highlights recent advances in the synthesis and application of protein-polymer conjugates by controlled radical polymerization techniques. Special emphasis on new applications of the materials, particularly in biomedicine, are highlighted.

Broyer, Rebecca M.; Grover, Gregory N.; Maynard, Heather D.

2011-01-01

43

Laparoscopic radical prostatectomy: review and assessment of an emerging technique  

Microsoft Academic Search

Background: Several recent reports have affirmed the feasibility of the laparoscopic approach for radical prostatectomy. In this review, we discuss the morbidities associated with this technique and compare outcomes and convalescence withstandard open radical prostatectomy. Methods: We reviewed all currently published data on laparoscopic radical prostatectomy and our series of 45 robotic-assisted radical prostatectomies and compared them to several landmark

J. B. Basillote; T. E. Ahlering; D. W. Skarecky; D. I. Lee; R. V. Clayman

2004-01-01

44

EMERGING EX-SITU BIOREMEDIATION TECHNIQUES FOR MTBE  

EPA Science Inventory

The presentation will summarize data from the latest techniques that are being studied for ex-situ treatment of MTBE-contaminated groundwater. Most of the presentation will focus on bioremediation technologies. Researchers' work that will be summarized include that of Chang et al...

45

New and Emerging Techniques in Cartilage Repair: MACI  

PubMed Central

The management of full thickness articular cartilage defects is a challenging problem for orthopaedic surgeons. It has limited potential for healing and can be a significant source of pain and loss of function. Multiple cartilage repair strategies have been attempted. Matrix-induced Autologous Chondrocyte Implantation (MACI) has been shown to produce hyaline-like cartilage into chondral defects. The goal of this review is to provide the current principles and technique of the MACI procedure along with reported clinical outcomes with its use.

Dunkin, Brad S; Lattermann, Christian

2013-01-01

46

Emerging techniques for dose optimization in abdominal CT.  

PubMed

Recent advances in computed tomographic (CT) scanning technique such as automated tube current modulation (ATCM), optimized x-ray tube voltage, and better use of iterative image reconstruction have allowed maintenance of good CT image quality with reduced radiation dose. ATCM varies the tube current during scanning to account for differences in patient attenuation, ensuring a more homogeneous image quality, although selection of the appropriate image quality parameter is essential for achieving optimal dose reduction. Reducing the x-ray tube voltage is best suited for evaluating iodinated structures, since the effective energy of the x-ray beam will be closer to the k-edge of iodine, resulting in a higher attenuation for the iodine. The optimal kilovoltage for a CT study should be chosen on the basis of imaging task and patient habitus. The aim of iterative image reconstruction is to identify factors that contribute to noise on CT images with use of statistical models of noise (statistical iterative reconstruction) and selective removal of noise to improve image quality. The degree of noise suppression achieved with statistical iterative reconstruction can be customized to minimize the effect of altered image quality on CT images. Unlike with statistical iterative reconstruction, model-based iterative reconstruction algorithms model both the statistical noise and the physical acquisition process, allowing CT to be performed with further reduction in radiation dose without an increase in image noise or loss of spatial resolution. Understanding these recently developed scanning techniques is essential for optimization of imaging protocols designed to achieve the desired image quality with a reduced dose. PMID:24428277

Kaza, Ravi K; Platt, Joel F; Goodsitt, Mitchell M; Al-Hawary, Mahmoud M; Maturen, Katherine E; Wasnik, Ashish P; Pandya, Amit

2014-01-01

47

A Parallel Search-and-Learn Technique for Solving Large Scale TSP  

Microsoft Academic Search

In this paper, we describe a parallel search-and-learn technique for obtaining high quality solutions to the Travelling Salesperson Problem (TSP). The combi- natorial search space is decomposed so that multiple processors can simultaneously look for local optimal solutions in the subspaces. The local optima are then compared to \\

C. P. Ravikumar

1993-01-01

48

Induced Pluripotent Stem Cells: Emerging Techniques for Nuclear Reprogramming  

PubMed Central

Abstract Introduction of four transcription factors, Oct3/4, Sox2, Klf4, and c-Myc, can successfully reprogram somatic cells into embryonic stem (ES)-like cells. These cells, which are referred to as induced pluripotent stem (iPS) cells, closely resemble embryonic stem cells in genomic, cell biologic, and phenotypic characteristics, and the creation of these special cells was a major triumph in cell biology. In contrast to pluripotent stem cells generated by somatic cell nuclear-transfer (SCNT) or ES cells derived from the inner cell mass (ICM) of the blastocyst, direct reprogramming provides a convenient and reliable means of generating pluripotent stem cells. iPS cells have already shown incredible potential for research and for therapeutic applications in regenerative medicine within just a few years of their discovery. In this review, current techniques of generating iPS cells and mechanisms of nuclear reprogramming are reviewed, and the potential for therapeutic applications is discussed. Antioxid. Redox Signal. 15, 1799–1820.

Han, Ji Woong

2011-01-01

49

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

Microsoft Academic Search

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

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

2008-01-01

50

A search for improved technique factors in paediatric fluoroscopy.  

PubMed

A Monte Carlo computational model of a fluoroscopic imaging chain was used for deriving optimal technique factors for paediatric fluoroscopy. The optimal technique was defined as the one that minimizes the absorbed dose (or dose rate) in the patient with a constraint of constant image quality. Image quality was assessed for the task of detecting a detail in the image of a patient-simulating phantom, and was expressed in terms of the ideal observer's signal-to-noise ratio (SNR) for static images and in terms of the accumulating rate of the square of SNR for dynamic imaging. The entrance air kerma (or air kerma rate) and the mean absorbed dose (or dose rate) in the phantom quantified radiation detriment. The calculations were made for homogeneous phantoms simulating newborn, 3-, 10- and 15-year-old patients, barium and iodine contrast material details, several x-ray spectra, and for imaging with or without an antiscatter grid. The image receptor was modelled as a CsI x-ray image intensifier (XRII). For the task of detecting low- or moderate-contrast iodine details, the optimal spectrum can be obtained by using an x-ray tube potential near 50 kV and filtering the x-ray beam heavily. The optimal tube potential is near 60 kV for low- or moderate-contrast barium details, and 80-100 kV for high-contrast details. The low-potential spectra above require a high tube load, but this should be acceptable in paediatric fluoroscopy. A reasonable choice of filtration is the use of an additional 0.25 mm Cu, or a suitable K-edge filter. No increase in the optimal tube potential was found as phantom thickness increased. With the constraint of constant low-contrast detail detectability, the mean absorbed doses obtained with the above spectra are approximately 50% lower than those obtained with the reference conditions of 70 kV and 2.7 mm Al filter. For the smallest patient and x-ray field size, not using a grid was slightly more dose-efficient than using a grid, but when the patient size and field size were increased a fibre interspaced grid resulted in lower doses than imaging without a grid. For a 15-year-old patient the mean absorbed doses were up to 40% lower with this grid than without the grid. PMID:10070800

Tapiovaara, M J; Sandborg, M; Dance, D R

1999-02-01

51

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

Microsoft Academic Search

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.

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

1996-01-01

52

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

PubMed

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

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

2012-06-01

53

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

SciTech Connect

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.

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

2009-08-05

54

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

NASA Astrophysics Data System (ADS)

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.

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

2008-06-01

55

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

NASA Astrophysics Data System (ADS)

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.

Yoshinaga, Hiroshi; Mizutani, Koichi; Wakatsuki, Naoto

56

Revised requirements for radiation emergency bioassay techniques for the public and first responders.  

PubMed

This technical note reports the required sensitivities for bioassay techniques derived from a 0.1 Sv effective dose incurred in the first year following an emergency (recommended by ICRP) and those derived from a 0.25 Sv committed effective dose (recommended by NCRP) as dose thresholds for possible medical attention. During a large-scale radiological or nuclear emergency, the dose threshold chosen for medical attention may be raised, as available resources may be insufficient for conducting a sensitive contamination assessment and medical treatment of a large population exposed to radioactive contamination. PMID:22134082

Li, Chunsheng; Kramer, Gary H

2012-01-01

57

Chimney and periscope technique for emergent treatment of spontaneous aortic rupture.  

PubMed

Aortic rupture comprises a potentially fatal condition necessitating emergent treatment. Endovascular sealing of the rupture site is often combined with the use of chimney- and periscope stent placement to preserve perfusion of aortic branches. We present a case of successful endovascular management of contained aortic rupture in a 78-year-old patient. The left brachial access facilitated stenting of the celiac and superior mesenteric arteries, whereas the left femoral route served stenting of the renal artery. One-month follow-up confirmed complete sealing, stent patency, and absence of endograft migration. The combined periscope and chimney technique is feasible and effective in the emergency setting. PMID:24517987

Trellopoulos, George; Georgakarakos, Efstratios; Pelekas, Dimitrios; Papachristodoulou, Athanasia; Argyriou, Christos; Georgiadis, George S

2014-07-01

58

Evaluating the datamining techniques and their roles in increasing the search speed data in web  

Microsoft Academic Search

In this article, data mining which is a new method in retrieving the high amount of information has been introduced. Data mining nowadays plays an important role in searching the information on the web that include a high variety data types. For reaching this goal, datamining techniques for automatic discovering and extracting the web based information has been used as

Omid Panah; A. Panah

2010-01-01

59

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

Microsoft Academic Search

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

Hy Murveit; John Butzberger; Vassilios Digalakis; Mitch Weintraub

1993-01-01

60

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

Microsoft Academic Search

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

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

2006-01-01

61

Dual-energy computed tomography (DECT) in emergency radiology: basic principles, techniques, and limitations.  

PubMed

Recent advances in computed tomography (CT) technology allow for acquisition of two CT datasets with different X-ray spectra. There are different dual-energy computed tomography (DECT) technical approaches such as: the dual-source CT, the fast kilovoltage-switching method, and the sandwich detectors technique. There are various postprocessing algorithms that are available to provide clinically relevant spectral information. There are several clinical applications of DECT that are easily accessible in the emergency setting. In this review article, we aim to provide the emergency radiologist with a discussion on how this new technology works and how some of its applications can be useful in the emergency room setting. PMID:24676736

Aran, Shima; Shaqdan, Khalid W; Abujudeh, Hani H

2014-08-01

62

GraphFind: enhancing graph searching by low support data mining techniques  

PubMed Central

Background Biomedical and chemical databases are large and rapidly growing in size. Graphs naturally model such kinds of data. To fully exploit the wealth of information in these graph databases, a key role is played by systems that search for all exact or approximate occurrences of a query graph. To deal efficiently with graph searching, advanced methods for indexing, representation and matching of graphs have been proposed. Results This paper presents GraphFind. The system implements efficient graph searching algorithms together with advanced filtering techniques that allow approximate search. It allows users to select candidate subgraphs rather than entire graphs. It implements an effective data storage based also on low-support data mining. Conclusions GraphFind is compared with Frowns, GraphGrep and gIndex. Experiments show that GraphFind outperforms the compared systems on a very large collection of small graphs. The proposed low-support mining technique which applies to any searching system also allows a significant index space reduction.

Ferro, Alfredo; Giugno, Rosalba; Mongiovi, Misael; Pulvirenti, Alfredo; Skripin, Dmitry; Shasha, Dennis

2008-01-01

63

VLBI Phase Reference Mapping Techniques and the Search for the Third Image of 0957+561  

NASA Astrophysics Data System (ADS)

This paper reviews the technique of using a phase reference in VLBI to extend the coherence and to provide accurate differential astrometry and describes the search for the third image of 0957+561. The search detected a compact component that was initially seen at 2.3 GHz and reported by Gorenstein et al. (1983. Later this compact source was also observed at 8.4 GHz and 5 GHz. Whether this source is the long sought third image or the core of the lensing galaxy has been an open question for several years. The interferometer phases on the most sensitive VLBI baseline suggest that we have observed the third image.

Rogers, Alan E. E.

64

VLBI phase reference mapping techniques and the search for the third image of 0957+561.  

NASA Astrophysics Data System (ADS)

This paper reviews the technique of the using a phase reference in VLBI to extend the coherence and to provide accurate differential astrometry and describes the search for the third image of 0957+561. The search detected a compact component that was initially seen at 2.3 GHz and reported by Gorenstein et al. (1983). Later this compact source was also observed at 8.4 GHz and 5 GHz. Whether this source is the long sought third image or the core of the lensing galaxy has been an open question for several years. The interferometer phases on the most sensitive VLBI baseline suggest that the third image has been observed.

Rogers, A. E. E.

65

Search for Free Fractional Electric Charge Elementary Particles Using an Automated Millikan Oil Drop Technique  

SciTech Connect

We have carried out a direct search in bulk matter for free fractional electric charge elementary particles using the largest mass single sample ever studied--about 17.4 mg of silicone oil. The search used an improved and highly automated Millikan oil drop technique. No evidence for fractional charge particles was found. The concentration of particles with fractional charge more than 0.16e (e being the magnitude of the electron charge) from the nearest integer charge is less than 4.71x10{sup -22} particles per nucleon with 95% confidence. (c) 2000 The American Physical Society.

Halyo, V.; Kim, P.; Lee, E. R.; Lee, I. T.; Loomba, D.; Perl, M. L.

2000-03-20

66

Taming the Frontierland Tornado: The Emergent Multiorganizational Search and Rescue Network in Cheyenne, Wyoming, July, 1979.  

National Technical Information Service (NTIS)

A case study of the July 16, 1979 tornado in northern Wyoming was used to establish a multiorganizational network to meet the emergency management demands of such an event. Case materials consisted of interviews, questionnaires, documents, meeting notes, ...

T. E. Drabek

1980-01-01

67

E-consumers' search and emerging structure of B-to-C coalitions  

Microsoft Academic Search

We have developed an agent-based computational model, extension of an analytical model1 that studies the structure of coalitions of B-to-C web sites, when Internet buyers incur search costs for finding the good that matches their preferences, and coalitions of sites reduce this cost through specialized search engines. This multi-agent model consists of heterogeneous, bounded rational agents: sites and web users,

Jacques Laye; Charis Lina; Herve Tanguy

2006-01-01

68

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

NASA Technical Reports Server (NTRS)

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.

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

1975-01-01

69

A Search Technique for Weak and Long-Duration Gamma-Ray Bursts from Background Model Residuals  

NASA Technical Reports Server (NTRS)

We report on a planned search technique for Gamma-Ray Bursts too weak to trigger the on-board threshold. The technique is to search residuals from a physically based background model used for analysis of point sources by the Earth occultation method.

Skelton, R. T.; Mahoney, W. A.

1993-01-01

70

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

SciTech Connect

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.)

NONE

1995-06-01

71

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

Microsoft Academic Search

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

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

1995-01-01

72

New International Program to Asses the Reliability of Emerging Nondestructive Techniques (PARENT)  

SciTech Connect

The Nuclear Regulatory Commission (NRC) 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 (PINC). The goal of the PARENT is to conduct a confirmatory assessment of the reliability of nondestructive evaluation (NDE) techniques for detecting and sizing primary water stress corrosion cracks (PWSCC) and applying 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 (DMWs) 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.

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

2013-01-25

73

Technology insight: ablative techniques for Barrett's esophagus--current and emerging trends.  

PubMed

New mucosal ablative techniques that can be used in the esophagus have emerged over the past two decades. These techniques have been develop primarily to treat the precursors of esophageal adenocarcinoma: dyspla, in Barrett's esophagus and early esophageal cancer. Although high-grade dysplasia and early stage cancer can be treated with esophagectomy, the inherent morbidity and mortality of esophageal adenocarcinoma and the morbidities, difficulties, costs and limitations of the current technology mean that there has been a significant increase in interest and research regarding alternative treatments such as ablative techniques. At this stage it is not clear which of the numerous endoscopic ablative techniques available---photodynamic therapy, laser therapy, multipolar electrocoagulation, argon plasma coagulation, endoscopic mucosal resection, radiofrequency ablation or cryotherapy--will emerge as superior. In addition, it has yet to be determined whether the risks associated with ablation therapy are less than the risk of Barrett's esophagus progressing to cancer. Whether ablation therapy eliminates o significantly reduces the risk of cancer, eliminates the need for surveillance endoscopy, or is cost-effective, also remains to be seen. Comparative triads that are now underway should help to answer these questions. PMID:16130939

Johnston, Mark H

2005-08-01

74

Technology insight: ablative techniques for Barrett's esophagus--current and emerging trends.  

PubMed

New mucosal ablative techniques that can be used in the esophagus have emerged over the past two decades. These techniques have been developed primarily to treat the precursors of esophageal adenocarcinoma: dysplasia in Barrett's esophagus and early esophageal cancer. Although high-grade dysplasia and early stage cancer can be treated with esophagectomy, the inherent morbidity and mortality of esophageal adenocarcinoma and the morbidities, difficulties, costs and limitations of the current technology mean that there has been a significant increase in interest and research regarding alternative treatments such as ablative techniques. At this stage it is not clear which of the numerous endoscopic ablative techniques available-photodynamic therapy, laser therapy, multipolar electrocoagulation, argon plasma coagulation, endoscopic mucosal resection, radiofrequency ablation or cryotherapy-will emerge as superior. In addition, it has yet to be determined whether the risks associated with ablation therapy are less than the risk of Barrett's esophagus progressing to cancer. Whether ablation therapy eliminates or significantly reduces the risk of cancer, eliminates the need for surveillance endoscopy, or is cost-effective, also remains to be seen. Comparative trials that are now underway should help to answer these questions. PMID:16265286

Johnston, Mark H

2005-07-01

75

Search and rescue emergency locating transmitter detection/location procedure via TIROS satellite  

NASA Technical Reports Server (NTRS)

A procedure is described which works effectively to detect and locate emergency locating transmitters (ELTs) and emergency position indicating radio beacons (EPIRBs) in a multisignal environment. Using data generated from several manufactured ELTs with diverse superimposed Doppler curves, as many as 9 simultaneous ELTs can be detected and located at a variety of signal strengths. It is noted that average position errors of 10 km are attainable today at signal power to noise spectral density ratios as low as 17 dB-Hz.

Wren, P. E.; Davisson, L. D.

1980-01-01

76

Emerging Techniques in Stratified Designs and Continuous Gradients for Tissue Engineering of Interfaces  

PubMed Central

Interfacial tissue engineering is an emerging branch of regenerative medicine, where engineers are faced with developing methods for the repair of one or many functional tissue systems simultaneously. Early and recent solutions for complex tissue formation have utilized stratified designs, where scaffold formulations are segregated into two or more layers, with discrete changes in physical or chemical properties, mimicking a corresponding number of interfacing tissue types. This method has brought forth promising results, along with a myriad of regenerative techniques. The latest designs, however, are employing “continuous gradients” in properties, where there is no discrete segregation between scaffold layers. This review compares the methods and applications of recent stratified approaches to emerging continuously graded methods.

Dormer, Nathan H.; Berkland, Cory J.; Detamore, Michael S.

2013-01-01

77

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

PubMed

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

Sakiyama, Tomoko; Gunji, Yukio-Pegio

2013-09-01

78

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

SciTech Connect

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.

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

2013-01-01

79

Use of a forensic technique to identify blood contamination of emergency department and ambulance trauma equipment  

PubMed Central

Using a Kastle?Meyer (KM) technique, the following equipment from the emergency departments of six UK hospitals (four trusts) and three regional ambulance services was tested for blood contamination: extrication (“spinal”) boards, cervical collars, straps, box splints, head blocks, and headboards. Only equipment ready for patient use was tested. Over half of trauma equipment (57%) tested positive for blood, including 15% of equipment that was visibly stained with blood. There have been no recorded cases of infection from contaminated trauma equipment but our study has identified the potential risk. Disposable covers for boards, disposable straps, and disposable radiolucent head blocks which are currently available provide a solution but have resource implications

Lee, J B; Levy, M; Walker, A

2006-01-01

80

Search for axion-like particles using a variable baseline photon regeneration technique  

SciTech Connect

We report the first results of the GammeV experiment, a search for milli-eV mass particles with axion-like couplings to two photons. The search is performed using a 'light shining through a wall' technique where incident photons oscillate into new weakly interacting particles that are able to pass through the wall and subsequently regenerate back into detectable photons. The oscillation baseline of the apparatus is variable, thus allowing probes of different values of particle mass. We find no excess of events above background and are able to constrain the two-photon couplings of possible new scalar (pseudoscalar) particles to be less than 3.1 x 10 {sup -7} GeV {sup -1} (3.5 x 10{sup -7} GeV{sup -1}) in the limit of massless particles.

Chou, A.S.; /Fermilab /CCPP, New York U.; Wester, William Carl, III; Baumbaugh, A.; /Fermilab; Gustafson, D.; /Michigan U.; Irizarry-Valle, Y.; Mazur, P.O.; Steffen, Jason H.; Tomlin, R.; Yang, X.; Yoo, J.; /Fermilab

2007-10-01

81

Advanced analysis and background techniques for the cryogenic dark matter search  

NASA Astrophysics Data System (ADS)

The Cryogenic Dark Matter Search (CDMS) used Ge and Si detectors, operated at 50mK, to look for Weakly Interacting Massive Particles (WIMPs) which may make up most of the dark matter in our universe. This dissertation describes the simulation, analysis, and results of the first WIMP-search data runs of the CDMS experiment between October 2006 and July 2007 with its 5 Towers of detectors at the Soudan Underground Laboratory. A blind analysis, incorporating improved techniques for event reconstruction and data quality monitoring, resulted in zero observed events. The results of this work place the most stringent limits yet set upon the WIMP-nucleon spin-independent cross section for WIMP masses above 44 GeV/c 2 , as well as setting competitive limits on spin-dependent WIMP-nucleon interactions.

Qiu, Xinjie

82

Intelligent technique to search for patterns within images in massive databases  

SciTech Connect

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.

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

2008-10-15

83

Developing Knowledge Representation in Emergency Medical Assistance by Using Semantic Web Techniques  

NASA Astrophysics Data System (ADS)

In this research, a knowledge-based architecture for a mobile emergency medical assistance system is presented. It is based on the France SAMU model and dopts the ontology and mobile computing approaches. The contribution is characterized for providing routines and medical protocol specifications for specialists through the use of their natural language, collecting elements from this language to develop an ontology domain, and using a semantic cache for an enhanced utilization of mobile devices. A prototype of the proposal was implemented in order to support specialists during a day-to-day basis considering knowledge engineering aided by mobile computing techniques. These differentiated characteristics have proved to be successfully at early experiments utilizing the implemented prototype.

Manica, Heloise; Rocha, Cristiano C.; Todesco, José Leomar; Dantas, M. A. R.

84

IESIP - AN IMPROVED EXPLORATORY SEARCH TECHNIQUE FOR PURE INTEGER LINEAR PROGRAMMING PROBLEMS  

NASA Technical Reports Server (NTRS)

IESIP, an Improved Exploratory Search Technique for Pure Integer Linear Programming Problems, addresses the problem of optimizing an objective function of one or more variables subject to a set of confining functions or constraints by a method called discrete optimization or integer programming. Integer programming is based on a specific form of the general linear programming problem in which all variables in the objective function and all variables in the constraints are integers. While more difficult, integer programming is required for accuracy when modeling systems with small numbers of components such as the distribution of goods, machine scheduling, and production scheduling. IESIP establishes a new methodology for solving pure integer programming problems by utilizing a modified version of the univariate exploratory move developed by Robert Hooke and T.A. Jeeves. IESIP also takes some of its technique from the greedy procedure and the idea of unit neighborhoods. A rounding scheme uses the continuous solution found by traditional methods (simplex or other suitable technique) and creates a feasible integer starting point. The Hook and Jeeves exploratory search is modified to accommodate integers and constraints and is then employed to determine an optimal integer solution from the feasible starting solution. The user-friendly IESIP allows for rapid solution of problems up to 10 variables in size (limited by DOS allocation). Sample problems compare IESIP solutions with the traditional branch-and-bound approach. IESIP is written in Borland's TURBO Pascal for IBM PC series computers and compatibles running DOS. Source code and an executable are provided. The main memory requirement for execution is 25K. This program is available on a 5.25 inch 360K MS DOS format diskette. IESIP was developed in 1990. IBM is a trademark of International Business Machines. TURBO Pascal is registered by Borland International.

Fogle, F. R.

1994-01-01

85

Hitting the Target: Emerging Technologies in the Search for Kinase Substrates  

NSDL National Science Digital Library

Through phosphorylation, protein kinases can alter the activity, localization, protein association, and stability of their targets. Despite the importance to our understanding of all aspects of cell biology, progress toward identifying bona fide substrates of specific protein kinases has been slow. Traditionally used techniques to identify true kinase substrates, such as genetics, yeast two-hybrid screens, and biochemical purification, are often laborious and unreliable. However, several new approaches have recently been developed and used successfully to identify genuine in vivo substrates of certain protein kinases. These methods include screening for phosphorylation of proteins from phage expression libraries, peptide library screens to determine optimal motifs favored by specific kinases, the use of phospho-motif antibodies, and an approach that uses structurally altered kinases and allele-specific adenosine triphosphate analogs and kinase inhibitors. We describe these approaches and discuss their utility and inherent caveats.

Brendan D. Manning (Beth Israel Deaconess Medical Center;Department of Cell Biology, Harvard Medical School, Division of Signal Transduction REV); Lewis C. Cantley (Beth Israel Deaconess Medical Center;Department of Cell Biology, Harvard Medical School, Division of Signal Transduction REV)

2002-12-10

86

The seismic method in the search for oil and gas: Current techniques and future developments  

SciTech Connect

In applying seismic echo techniques to oil and gas exploration, the underground is ''illuminated'' from the surface by acoustic waves. The incident wavefield is reflected at the geologic layer boundaries and is registered at the surface, yielding detailed information on earth's upper structure. An important aspect of the seismic method is that an unprocessed seismic image does not represent the actual picture. Each reflection has been distorted during its propagation through earth. These distortions have to be corrected before an accurate picture can be developed. This is in most cases accomplished by ''seismic inversion.'' In this paper, current seismic techniques for oil and gas search, and their further development, are reviewed, with emphasis on seismic inversion. It is shown that important new developments in theory, software, and hardware have yielded significant improvements in wave theory solutions. Most research results presented are general and apply equally well to other echo technique applications, such as ultrasonic medical imaging, nondestructive testing, acoustic microscopy, sonar, and ground radar.

Berkhout, A.J.

1986-08-01

87

Mass dependence of searches for fractional charge in matter using ion-beam techniques  

SciTech Connect

If free quarks or other fractionally charged particles can exist, they should be present as a low primordial or cosmic-ray-produced concentration in terrestrial matter. The most sensitive searches have been dependent on the detection of anomalous ions by silicon-barrier or electron-multiplier detection systems, in which the dependence of energy transfer on ion velocity results in a decrease of detection efficiency with increasing mass, leading to a cutoff in observable particle mass for a given accelerating voltage. The factors governing this mass dependence are discussed, with illustrative calculations for a number of typical experiments. It is shown that the reported concentration limits are valid up to typically 10--100 proton masses for anomalous particles either in the free state or attached to low-Z atoms, but with lower sensitivity and reduced mass limits if bound to heavier atoms. The prospects for improving mass limits in future fractional charge searches are discussed. It is concluded that the detectable mass range could in principle be extended by several orders of magnitude in this type of experiment, and that in the case of positive ions of sufficiently high electron affinity the ''potential mechanism'' of electron ejection might provide a basis for fully mass-independent detection (although at the expense of a direct fractional-charge signature). The problem of pre-enrichment of the sample material is also considered, and a general method of estimating the mass dependence of electrical extraction techniques is given.

Lewin, J.D.; Smith, P.F.

1985-09-01

88

Designing a Broadband Visible Antireflection Coating by Flip-Flop Tuning Search Technique  

NASA Astrophysics Data System (ADS)

A design procedure of a broadband multiplayer antireflection coating is proposed. The design algorithm based on the flip-flop operation of the indices of layers is used first, and the tuning operation of the thickness of layers is applied afterward to improve the performance and to simplify the structure of the final solution. The final design, obtained by the flip-flop tuning search technique of a three-material 100-layer system starting with low indices for all ayers, is a nine-layer structure, and the average reflectivity over the visible spectral region is reduced to lower than 0.16%. It is shown that the structure designed by three-material flip-flop tuning is much simpler and its performance is better compared with the AR coating design obtained by the flip-flop synthesis method.

Liou, Yeuh-Yeong

2003-11-01

89

Multivariate Techniques and b-tagging Optimization in Standard Model WH Searches at DO  

NASA Astrophysics Data System (ADS)

We search for the standard model Higgs boson produced in association with a W boson using data collected with the D0 detector corresponding to 9.7 fb-1 of integrated luminosity of pp collisions at ?s=1.96 TeV at the Fermilab Tevatron collider. We select events with a lepton (e or ?), missing ET, and two or three reconstructed jets. We split the candidate events based on the number and quality of jets that are tagged as originating from a b-quark, and apply multivariate techniques to further separate signal from background. This talk will focus on the optimization of b-tagging and the choice of variables used in the multivariate analysis.

Shaw, Savanna

2012-03-01

90

Modelling Aedes aegypti mosquito control via transgenic and sterile insect techniques: endemics and emerging outbreaks.  

PubMed

The invasion of pest insects often changes or destroys a native ecosystem, and can result in food shortages and disease endemics. Issues such as the environmental effects of chemical control methods, the economic burden of maintaining control strategies and the risk of pest resistance still remain, and mosquito-borne diseases such as malaria and dengue fever prevail in many countries, infecting over 100 million worldwide in 2010. One environmentally friendly method for mosquito control is the Sterile Insect Technique (SIT). This species-specific method of insect control relies on the mass rearing, sterilization and release of large numbers of sterile insects. An alternative transgenic method is the Release of Insects carrying a Dominant Lethal (RIDL). Our objective is to consider contrasting control strategies for two invasive scenarios via SIT and RIDL: an endemic case and an emerging outbreak. We investigate how the release rate and size of release region influence both the potential for control success and the resources needed to achieve it, under a range of conditions and control strategies, and we discuss advantageous strategies with respect to reducing the release resources and strategy costs (in terms of control mosquito numbers) required to achieve complete eradication of wild-type mosquitoes. PMID:23608633

Seirin Lee, S; Baker, R E; Gaffney, E A; White, S M

2013-08-21

91

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

USGS Publications Warehouse

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.

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

2010-01-01

92

Applying Collaborative Filtering Techniques to Movie Search for Better Ranking and Browsing  

Microsoft Academic Search

In general web search engines, such as Google and Ya- hoo! Search, document relevance for the given query and item authority are two major components of the ranking system. However, many information search tools in ecommerce sites ignore item authority in their ranking systems. In part, this may stem from the relative difficulty of generating item authorities due to the

Seung-Taek Park; David M. Pennock; Dennis DeCoste

93

Improper inhaler technique is associated with poor asthma control and frequent emergency department visits  

PubMed Central

Background Uncontrolled asthma remains a frequent cause of emergency department (ED) visits and hospital admissions. Improper asthma inhaler device use is most likely one of the major causes associated with uncontrolled asthma and frequent ED visits. Objectives To evaluate the inhaler technique among asthmatic patients seen in ED, and to investigate the characteristics of these patients and factors associated with improper use of inhaler devices and its relationship with asthma control and ED visits. Methods A cross-sectional study of all the patients who visited the ED with bronchial asthma attacks over a 9-month period was undertaken at two major academic hospitals in Saudi Arabia. Information was collected about demographic data and asthma management and we assessed the inhaler techniques for each patient using an inhaler technique checklist. Results A total of 450 asthma patients were included in the study. Of these, 176(39.1%) were males with a mean age of 42.3 ±16.7 years and the mean duration of asthma was 155.9 ± 127.1 weeks. The improper use of asthma inhaler devices was observed in 203(45%) of the patients and was associated with irregular clinic follow-ups (p = 0.0001), lack of asthma education (p = 0.0009), uncontrolled asthma ACT (score ? 15) (p = 0.001), three or more ED visits (p = 0.0497), and duration of asthma of less than 52 weeks (p = 0.005). Multiple logistic regression analysis revealed that a lack of education about asthma disease (OR =1.65; 95% CI: 1.07, 2.54) or a lack of regular follow-up (OR =1.73; 95% CI: 1.08, 2.76) was more likely to lead to the improper use of an asthma inhaler device. Conclusion Improper asthma inhaler device use is associated with poor asthma control and more frequent ED visits. We also identified many avoidable risk factors leading to the improper use of inhaler devices among asthma patients visiting the ED.

2013-01-01

94

A New Search for Elementary Particles with Fractional Electric Charge Using an Improved Millikan Technique  

SciTech Connect

The authors have devised and demonstrated the successful operation of a low cost, high mass throughput technique capable of performing bulk matter searches for fractionally charged particles based on an improved Millikan liquid drop method. The method uses a stroboscopic lamp and a CCD video camera to image the trajectories of silicone oil drops falling through air in the presence of a vertical, alternating electric field. The images of the trajectories are computer processed in real time, the electric charge on a drop being measured with an rms error of 0.025 of an electron charge. This error is dominated by Brownian motion. In the first use of this method, they have looked at 5,974,941 drops and found no evidence for fractional charges in 1.07 mg of oil. With 95% confidence, the concentration of isolated quarks with {+-} 1/3e or {+-} 2/3e in silicone oil is less than one per 2.14 x 10{sup 20} nucleons.

Mar, Nancy

2003-08-18

95

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

National Technical Information Service (NTIS)

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 h...

1982-01-01

96

Analytical techniques for the calculation of leeway as a basis for search and rescue planning  

Microsoft Academic Search

Leeway, defined as the movement of the search object through water caused by the action of wind on the exposed surfaces of the object, is fundamental to search planning. Over the past several years, the U.S. Coast Guard (USCG) Research and Development Center (R&DC) and the Canadian Coast Guard (CCG) have participated in leeway studies of various drift targets such

J. T. Morris; V. I. Osychny; A. C. Turner

2008-01-01

97

Using Nearest-Neighbour Searching Techniques to Access Full-Text Documents.  

ERIC Educational Resources Information Center

Describes a project at the University of Sheffield that is investigating the use of nearest-neighbor retrieval algorithms for full-text searching. Nearest-neighbor searching is compared with Boolean retrieval and hypertext, and an experimental text retrieval system called INSTRUCT (Interactive System for Teaching Retrieval Using Computational…

Al-Hawamdeh, Suliman; And Others

1991-01-01

98

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

Microsoft Academic Search

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

Craig Macdonald; Iadh Ounis

2006-01-01

99

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

NASA Technical Reports Server (NTRS)

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.

Hayes, Jane; Dekhtyar, Alex

2004-01-01

100

A comparative evaluation of search techniques for query-by-humming using the MUSART testbed  

Microsoft Academic Search

Query-by-Humming systems offer content-based searching for melodies and require no special music al training or knowledge. Many such systems have been built, but there has not been much useful evaluatio n and comparison in the literature due to the lack of shared databases and queries. The M USART project testbed allows various search algorithms to be compared using a shared

Roger B. Dannenberg; William P. Birmingham; Bryan Pardo; Ning Hu; Colin Meek; George Tzanetakis

2007-01-01

101

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

PubMed

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

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

2012-10-01

102

Emergency percutaneous balloon aortic valvuloplasty using a triple balloon technique to a patient with severe aortic stenosis.  

PubMed

A 76-year-old male who had already been diagnosed with ischemic heart disease and severe aortic stenosis was transferred to our hospital in a state of cardiogenic shock. We finally diagnosed him with severe aortic stenosis. We decided to perform emergency balloon aortic valvuloplasty (BAV) as a bridge treatment to surgical repair. We first performed BAV with a double balloon technique, and next with a triple balloon technique. As a result, the blood pressure recovered, and surgical aortic valve repair could thus be successfully performed. PMID:23605115

Yamazaki, Kenji; Hara, Hidehiko; Yamashita, Yuji; Takenaka, Hiroki; Nakamura, Masato; Sugi, Kaoru

2013-10-01

103

Modeling search engine effectiveness for federated search  

Microsoft Academic Search

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

Luo Si; Jamie Callan

2005-01-01

104

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

SciTech Connect

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.

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

1983-03-01

105

Novel comparative torsional analytical technique to predict mechanical reliability of emerging memory cards and packages  

Microsoft Academic Search

Torsional test is a method widely used to determine the behaviour of materials when subjected to torsional force. Packaged devices ranging from memory modules to cards are subjected to this test to predict its mechanical lifetime reliability. It is however, a challenge to predict an optimum torsion testing condition for new emerging packaged devices, with different package configurations. This paper

Jason Wong; Hu Guo Jun; Leow Chiap Yong; Spencer Chew

2006-01-01

106

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

SciTech Connect

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.

Not Available

1982-01-01

107

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

ERIC Educational Resources Information Center

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…

Lofstrom, Mats

108

Approximation Techniques to Enable Dimensionality Reduction for Voronoi-Based Nearest Neighbor Search  

Microsoft Academic Search

Utilizing spatial index structures on secondary memory for nearest neighbor search in high-dimensional data spaces has been the subject of much research. With the potential to host larger indexes in main memory, applications demanding a high query throughput stand to benefit from index structures tai- lored for that environment. \\

Christoph Brochhaus; Marc Wichterich; Thomas Seidl

2006-01-01

109

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

ERIC Educational Resources Information Center

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…

Schiffmann, Genevieve N.

1985-01-01

110

A Technique for Measuring the Relative Size and Overlap of Public Web Search Engines  

Microsoft Academic Search

Search engines are among the most useful and popular services on the Web. Users are eager to know how they compare. Which one has the largest coverage? Have they indexed the same portion of the Web? How many pages are out there? Although these questions have been debated in the popular and technical press, no objective evaluation methodology has been

Krishna Bharat; Andrei Z. Broder

1998-01-01

111

Maximization of System Reliability Using a Digital Computer and Oscilloscope Search Technique.  

National Technical Information Service (NTIS)

The purpose of the paper is to devise a systematic method of searching for the optimal Lagrange multiplier through the use of a digital computer in a direct tie with an on-line oscilloscope. The method is a considerable aid in converging on the optimal La...

R. K. Hoppe

1965-01-01

112

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

NASA Astrophysics Data System (ADS)

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).

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

2012-06-01

113

Characteristics of clinical information-searching: investigation using critical incident technique.  

PubMed

A total of 293 medical students, residents, and physicians were surveyed concerning their everyday information needs and the resources used to address these needs. The results of this study were used to identify goals of information-searching education for medical students. The participants' heavy reliance on their personal libraries, their basing their first choice of resource on physical convenience, and their need to obtain information quickly document the need to educate students in organizing and maintaining personal libraries and reprint files. In this study, the authors found that familiarity with a resource is often the basis of the choice of the resource and identified different types of information needs. These results revealed the need to educate medical students to be able to use the characteristics of the information problem to tailor information-search strategy to retrieve information expeditiously from a variety of resources outside the personal library. PMID:6631926

Northup, D E; Moore-West, M; Skipper, B; Teaf, S R

1983-11-01

114

A High Through-put Combinatorial Growth Technique for Semiconductor Thin Film Search  

SciTech Connect

Conventional semiconductor material growth technique is costly and time-consuming. Here we developed a new method to growth semiconductor thin films using high through-put combinatorial technique. In this way, we have successfully fabricated tens of semiconductor libraries with high crystallinity and high product of {mu}{tau} for the purpose of radiation detection.

Ma, Z. X.; Hao, H. Y.; Xiao, P.; Oehlerking, L. J.; Liu, D. F.; Zhang, X. J.; Yu, K.-M.; Walukiewicz, W.; Mao, S. S. [Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Yu, P. Y. [Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Department of Physics, University of California, Berkeley, CA 94720 (United States)

2011-12-23

115

Selecting a process paradigm for an emergent disruptive technology: evidence from the emerging microsystems technology base  

Microsoft Academic Search

Emergent technologies often suffer from a lack of an installed manufacturing base and an obvious dominant manufacturing technique. Firms which base their search for competitive advantage on emergent disruptive technologies must make hard production choices and endure major manufacturing discontinuities. We, as well as many other firms, are now facing these challenges with the embrace of microsystems technologies. Efficient manufacturing

James H. Smith; Steven T. Walsh

1998-01-01

116

Old and new cluster designs in emergency field surveys: in search of a one-fits-all solution  

Microsoft Academic Search

INTRODUCTION: Cluster surveys are frequently used to measure key nutrition and health indicators in humanitarian emergencies. The survey design of 30 clusters of 7 children (30 × 7) was initially proposed by the World Health Organization for measuring vaccination coverage, and later a design of 30 clusters of 30 children (30 × 30) was introduced to measure acute malnutrition in

Oleg O Bilukha

2008-01-01

117

Microextraction by packed sorbent: an emerging, selective and high-throughput extraction technique in bioanalysis.  

PubMed

Sample preparation is an important analytical step regarding the isolation and concentration of desired components from complex matrices and greatly influences their reliable and accurate analysis and data quality. It is the most labor-intensive and error-prone process in analytical methodology and, therefore, may influence the analytical performance of the target analytes quantification. Many conventional sample preparation methods are relatively complicated, involving time-consuming procedures and requiring large volumes of organic solvents. Recent trends in sample preparation include miniaturization, automation, high-throughput performance, on-line coupling with analytical instruments and low-cost operation through extremely low volume or no solvent consumption. Micro-extraction techniques, such as micro-extraction by packed sorbent (MEPS), have these advantages over the traditional techniques. This paper gives an overview of MEPS technique, including the role of sample preparation in bioanalysis, the MEPS description namely MEPS formats (on- and off-line), sorbents, experimental and protocols, factors that affect the MEPS performance, and the major advantages and limitations of MEPS compared with other sample preparation techniques. We also summarize MEPS recent applications in bioanalysis. Copyright © 2014 John Wiley & Sons, Ltd. PMID:24861752

Pereira, Jorge; Câmara, José S; Colmsjö, Anders; Abdel-Rehim, Mohamed

2014-06-01

118

Near-surface mounted FRP reinforcement: An emerging technique for strengthening structures  

Microsoft Academic Search

Near-surface mounted (NSM) fiber-reinforced polymer (FRP) reinforcement is one of the latest and most promising strengthening techniques for reinforced concrete (RC) structures. Research on this topic started only a few years ago but has by now attracted worldwide attention. Issues raised by the use of NSM FRP reinforcement include the optimization of construction details, models for the bond behaviour between

L. De Lorenzis; J. G. Teng

2007-01-01

119

Efficient keyword search over virtual XML views  

Microsoft Academic Search

Emerging applications such as personalized portals, enterprise search, and web integration systems often require keyword search\\u000a over semi-structured views. However, traditional information retrieval techniques are likely to be expensive in this context\\u000a because they rely on the assumption that the set of documents being searched is materialized. In this paper, we present a\\u000a system architecture and algorithm that can efficiently

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

2009-01-01

120

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

PubMed

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

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

2009-05-01

121

Fast two-phased initial search technique for arbitrary-shaped queries  

NASA Astrophysics Data System (ADS)

Most content-based image retrieval techniques are not able to eliminate noise from similarity matching since they capture the features of the entire image area or pre- perceived objects at the database build time. Recent approaches address this outstanding issue by allowing users to arbitrarily exclude noise in formulating their queries. This capability has resulted in high retrieval effectiveness for a wide range of queries. However, implementing these techniques for large image collections presents a great challenge since we can not assume any shape for queries defined by users. In this paper, we propose an efficient indexing/retrieval technique for arbitrarily-shaped queries which is able to eliminate a majority of unqualified images. Moreover, we improve the retrieval process with a filtering phase to prune out additional false matches before the detailed similarity measure is carried out. We have implemented the proposed technique in our image retrieval system for a large image collection. Our experimental results show that our technique is capable of handling image matching very well and 70 times on average faster than the straightforward sequential scanning.

Vu, Khanh; Hua, Kien A.; Hiransakolwong, Nualsawat

2000-12-01

122

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)

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

Manungu Kiveni, Joseph

123

Rotational modulation in IUE spectra of cool dwarf chromospheres. I - Data analysis and period search techniques  

NASA Technical Reports Server (NTRS)

Time-sequenced IUE spectra of a number of a bright F-K dwarfs have been used to investigate rotational modulation in several important chromospheric and transition emission lines. Stellingwerf's phase dispersion minimization (PDM) technique forms the basis of this time-series analysis of these sparsely sampled, irregularly spaced observational sequences, which consist of no more than 13 spectra in any one season. In such highly sample-limited time series, the resultant PDM spectrum is greatly complicated by overlapping alias orders which invariably produce strong interference effects, but the deliberately irregular sampling has proven of value in the development of techniques to identify the intrinsic stellar flux modulation period. Two stars are selected to illustrate these new techniques in detail.

Hallam, K. L.; Altner, B.; Endal, A. S.

1991-01-01

124

Rotational modulation in IUE spectra of cool dwarf chromospheres: Data analysis and period search techniques  

NASA Technical Reports Server (NTRS)

The IUE spectra of bright F-K dwarfs were used to investigate rotational modulation in chromospheric and transition region emission lines, with Stellingwerf's phase dispersion minimization (PDM) technique as the basis of time series analysis. Sampling-related aliases are found to dominate the PDM spectra in these sparsely sampled, irregularly spaced time series. The star chosen to illustrate the techniques is epsilon Eridani, a young, chromospherically active K2 dwarf. Strong indications of a rotation period close to 2.8 days in epsilon Eridani from 2 seasons of observations, with evidence for the persistence in longitude of the active area(s) over several hundred rotation cycles are found.

Altner, B.; Endal, A. S.; Hallam, K. L.

1986-01-01

125

Perioperative Intravascular Fluid Assessment and Monitoring: A Narrative Review of Established and Emerging Techniques  

PubMed Central

Accurate assessments of intravascular fluid status are an essential part of perioperative care and necessary in the management of the hemodynamically unstable patient. Goal-directed fluid management can facilitate resuscitation of the hypovolemic patient, reduce the risk of fluid overload, reduce the risk of the injudicious use of vasopressors and inotropes, and improve clinical outcomes. In this paper, we discuss the strengths and limitations of a spectrum of noninvasive and invasive techniques for assessing and monitoring intravascular volume status and fluid responsiveness in the perioperative and critically ill patient.

Singh, Sumit; Kuschner, Ware G.; Lighthall, Geoffrey

2011-01-01

126

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

SciTech Connect

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.

Padmore, H.A.

1998-05-01

127

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

SciTech Connect

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.

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

2011-06-22

128

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

PubMed Central

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.

Fu, Hui

2014-01-01

129

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

PubMed

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

Liu, Xiaoyong; Fu, Hui

2014-01-01

130

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

NASA Astrophysics Data System (ADS)

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.

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

2005-01-01

131

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

SciTech Connect

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.)

Not Available

1992-06-01

132

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

SciTech Connect

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.)

Not Available

1993-12-01

133

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

SciTech Connect

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.)

Not Available

1993-12-01

134

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

SciTech Connect

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.)

Not Available

1993-10-01

135

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

SciTech Connect

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.)

Not Available

1993-10-01

136

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

SciTech Connect

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.)

Not Available

1992-09-01

137

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

SciTech Connect

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.)

NONE

1995-01-01

138

Exploratory crystal growth techniques in the search of new dielectrics and ferroelectrics  

Microsoft Academic Search

Exploratory crystal growth gives as fast as possible and as economically as possible first crystals for an assessment of chemical, structural and physical properties. The arsenal of the crystal grower is scanned and solution growth techniques are selected as first choice for exploratory growth. Equipment for obtaining rapidly the solubility data is described and the use of a modified temperature

H. Arend

1981-01-01

139

Complementary and Emerging Techniques for Astrophysical Ices Processed in the Laboratory  

NASA Astrophysics Data System (ADS)

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.

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

140

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

NASA Technical Reports Server (NTRS)

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.

Biemann, K.

1973-01-01

141

Trust-Based Techniques for Collective Intelligence in Social Search Systems  

Microsoft Academic Search

\\u000a A key-issue for the effectiveness of collaborative decision support systems is the problem of the trustworthiness of the entities\\u000a involved in the process. Trust has been always used by humans as a form of collective intelligence to support effective decision\\u000a making process. Computational trust models are becoming now a popular technique across many applications such as cloud computing,\\u000a p2p networks,

Pierpaolo Dondio; Luca Longo

142

Wang-Landau molecular dynamics technique to search for low-energy conformational space of proteins  

NASA Astrophysics Data System (ADS)

Multicanonical molecular dynamics (MD) is a powerful technique for sampling conformations on rugged potential surfaces such as protein. However, it is notoriously difficult to estimate the multicanonical temperature effectively. Wang and Landau developed a convenient method for estimating the density of states based on a multicanonical Monte Carlo method. In their method, the density of states is calculated autonomously during a simulation. In this paper, we develop a set of techniques to effectively apply the Wang-Landau method to MD simulations. In the multicanonical MD, the estimation of the derivative of the density of states is critical. In order to estimate it accurately, we devise two original improvements. First, the correction for the density of states is made smooth by using the Gaussian distribution obtained by a short canonical simulation. Second, an approximation is applied to the derivative, which is based on the Gaussian distribution and the multiple weighted histogram technique. A test of this method was performed with small polypeptides, Met-enkephalin and Trp-cage, and it is demonstrated that Wang-Landau MD is consistent with replica exchange MD but can sample much larger conformational space.

Nagasima, Takehiro; Kinjo, Akira R.; Mitsui, Takashi; Nishikawa, Ken

2007-06-01

143

Novel techniques and findings in the study of plant microbiota: search for plant probiotics.  

PubMed

Plants live in intimate relationships with numerous microorganisms present inside or outside plant tissues. The plant exterior provides two distinct ecosystems, the rhizosphere (below ground) and the phyllosphere (above ground), both populated by microbial communities. Most studies on plant microbiota deal with pathogens or mutualists. This review focuses on plant commensal bacteria, which could represent a rich source of bacteria beneficial to plants, alternatively termed plant probiotics. Plant commensal bacteria have been addressed only recently with culture-independent studies. These use next-generation sequencing, DNA microarray technologies and proteomics to decipher microbial community composition and function. Diverse bacterial populations are described in both rhizosphere and phyllosphere of different plants. The microorganisms can emerge from neighboring environmental ecosystems at random; however their survival is regulated by the plant. Influences from the environment, such as pesticides, farming practice and atmosphere, also affect the composition of microbial communities. Apart from community composition studies, some functional studies have also been performed. These include identification of broad-substrate surface receptors and methanol utilization enzymes by the proteomic approach, as well as identification of bacterial species that are important mediators of disease-suppressive soil phenomenon. Experience from more advanced human microbial studies could provide useful information and is discussed in the context of methodology and common trends. Administration of microbial mixtures of whole communities, rather than individual species, is highlighted and should be considered in future agricultural applications. PMID:22794922

Berlec, Aleš

2012-09-01

144

The Search for Astrophysical Ultra-High Energy Neutrinos Using Radio Detection Techniques  

NASA Astrophysics Data System (ADS)

Ultra-high energy (UHE) neutrino astronomy would allow for the highest energy observation of extragalactic sources and the observation of extremely distant sources in the universe. A flux of UHE neutrinos is expected from interactions of UHE cosmic-ray protons with the cosmic microwave background. The ANITA (ANtarctic Impulsive Transient Antenna) experiment. a NASA Long Duration Balloon omission, searches for radio emission arising from the Askaryan charge excess that develops in electromagnetic particle cascades induced by UHE neutrinos with energy greater than 1018 eV interacting in Antarctic ice. The second flight of the ANITA experiment launched on December 21st, 2008, and collected data for 31 days. In Chapters 2 and 3, I describe the ANITA-II instrument and the calibration of the instrument in detail. Chapters 4 and 5 contain a discussion of a blind analysis of ANITA-II data in which I find 2 surviving neutrino candidate events on a background (anthropogenic and thermal noise) of 0.97+/-0.42 events. I set the strongest limit to dare for 1018 -- 1021 eV cosmic neutrinos, excluding several current cosmogenic neutrino models. In Chapters 6 and 7, I investigate possibilities for next-generation experiments for radio detection of UHE neutrinos. In Chapter 6. I discuss the results of radio attenuation length measurements of rock salt taken at two different salt mines. Chapter 7 is a description of a simulation for a next-generation, ground-based experiment in Antarctica.

Vieregg, Abigail Goodhue

145

Resampling technique to correct for the Doppler effect in a search for gravitational waves  

SciTech Connect

The frequency of any gravitational-wave signal received from a spinning neutron star will appear Doppler-shifted by the Earth's rotation and orbital motion. This frequency shift must be compensated to recover the signal energy as a spectral monochromatic peak with a high signal-to-noise ratio. Generally the correction depends on the source's position in the sky, spin, and spin-down rate. Here we propose a method of applying a single correction to the data which is valid for all the emission frequencies at a fixed position in the sky and for a given spin-down rate. We advance or retard the antenna proper time by removing (or repeating) single samples of the digitized output signal to keep the effective receiver and source clocks in accurate synchronization. The method, which requires just a few lines of code and little computational effort, appears to be very effective for ''semitargeted'' searches, where the source direction is known but the emission frequency is not.

Braccini, S.; Cella, G.; Ferrante, I.; Passuello, D.; Torre, O. [INFN, Sezione di Pisa (Italy); INFN, Sezione di Pisa (Italy); INFN, Sezione di Pisa (Italy); Universita di Pisa (Italy); INFN, Sezione di Pisa (Italy); INFN, Sezione di Pisa (Italy); Universita di Siena (Italy)

2011-02-15

146

Search for Middle Atmosphere Waves Over Arecibo: LIDAR Observations and Analysis Techniques  

NASA Astrophysics Data System (ADS)

The temperature profiles in the altitude range 35 - 72 km observed by one of the resonance LIDAR at Arecibo (18° 21' N, 66° 45' W) during two campaigns over three consecutive days on February 2002 and December 2009 were analyzed in order to search for middle atmosphere waves and to obtain the time evolution dynamic. The LIDAR is based on a pulsed Nd:YAG laser using its frequency doubled output at 532 nm to pump a dye laser [Tepley et al., 2003; Raizada et al., 2011]. To generate the wavelength at 393 nm, a DCM dye tuned to 624 nm are used. The LIDAR results were compared with atmospheric MSIS-90 Model available from the Goddard Space Flight Center, Nasa Space Physic Data Facility observing a good agreement in the temperature vertical profile over 35 - 55 km for February 2002 campaign and over 35 - 50 km for December 2009 campaign. Differences possibly caused by the loss of backscattering intensity due to the altitude are noted above approximately 53 km. We observed amplitude of approximately 7km of periodicity in the vertical profile fluctuations for two adjacent days in the December 2009 campaign. The association of this vertical periodicity a low propagating inertial-gravity wave will be discussed. Vertical Fluctuations

Astacio Oquendo, G.; Ierkic, H. M.; Raizada, S.; Tepley, C. A.

2012-12-01

147

A search of an ? dependence of the proton form factor ratio using recoil polarization technique  

NASA Astrophysics Data System (ADS)

Intensive theoretical and experimental efforts have been made over the past decade aiming at explaining the discrepancy between the data for the proton form factor ratio, GEp/GMp, obtained at Jefferson Lab using polarization transfer technique, and the world data obtained by the Rosenbluth method based on cross section measurements. One possible explanation for this difference is a two-photon exchange contribution, where both photons share the momentum transfer about equally. In the Born approximation for a fixed Q^2, the form factors do not depend upon the energy of the incident electron. We will report the results of the Jlab Hall-C GEp-2? experiment which was designed to measure a possible kinematical variation of the ratio GEp/GMp with statistical uncertainties of ±0.01 at Q^2=2.5 GeV^2, using the recoil polarization technique. Three kinematics were chosen, corresponding to values of the kinematic factor ?=0.15, 0.63 and 0.77. We will describe the new detectors built for both GEp-2? and GEp-III experiments, the electromagnetic calorimeter BigCal which detected the scattered electron, and the focal plane polarimeter (FPP) which measured the polarization of the recoil proton.

Meziane, Mehdi

2010-11-01

148

Infodemiology and Infoveillance: Framework for an Emerging Set of Public Health Informatics Methods to Analyze Search, Communication and Publication Behavior on the Internet  

PubMed Central

Infodemiology can be defined as the science of distribution and determinants of information in an electronic medium, specifically the Internet, or in a population, with the ultimate aim to inform public health and public policy. Infodemiology data can be collected and analyzed in near real time. Examples for infodemiology applications include: the analysis of queries from Internet search engines to predict disease outbreaks (eg. influenza); monitoring peoples' status updates on microblogs such as Twitter for syndromic surveillance; detecting and quantifying disparities in health information availability; identifying and monitoring of public health relevant publications on the Internet (eg. anti-vaccination sites, but also news articles or expert-curated outbreak reports); automated tools to measure information diffusion and knowledge translation, and tracking the effectiveness of health marketing campaigns. Moreover, analyzing how people search and navigate the Internet for health-related information, as well as how they communicate and share this information, can provide valuable insights into health-related behavior of populations. Seven years after the infodemiology concept was first introduced, this paper revisits the emerging fields of infodemiology and infoveillance and proposes an expanded framework, introducing some basic metrics such as information prevalence, concept occurrence ratios, and information incidence. The framework distinguishes supply-based applications (analyzing what is being published on the Internet, eg. on Web sites, newsgroups, blogs, microblogs and social media) from demand-based methods (search and navigation behavior), and further distinguishes passive from active infoveillance methods. Infodemiology metrics follow population health relevant events or predict them. Thus, these metrics and methods are potentially useful for public health practice and research, and should be further developed and standardized.

2009-01-01

149

A Keyword Searching Algorithm For Search Engines  

Microsoft Academic Search

Search engines prominently use inverted indexing technique to locate the Web pages having the keyword contained in the users query. The performance of inverted index, fundamentally, depends upon the searching of keyword in the list maintained by search engines. This paper presents a new technique for keyword searching. It uses a trie data structure to index the keyword up to

Vishal Gupta

2007-01-01

150

Respirators for Public Health Emergencies  

MedlinePLUS

... E-mail Consumer Updates RSS Feed Respirators for Public Health Emergencies Search the Consumer Updates Section This cup- ... a person's exposure to airborne germs during a public health medical emergency. Such an emergency can range from ...

151

Searching for Flares in Hard X-rays/Soft Gamma Rays with GBM Using the Earth Occultation Technique  

NASA Astrophysics Data System (ADS)

Employing the NaI detectors of the Gamma-ray Burst Monitor (GBM) onboard NASA's Fermi satellite, fluxes of hard x-ray/soft gamma-ray sources can be measured by using the Earth Occultation Technique (EOT). EOT uses the step-like features in the detector count rate caused by a source passing into or out of occultation by the Earth to derive fluxes. GBM's large field of view allows for all-sky monitoring of sources at energies from 8 keV to 1 MeV. Because of the extreme variability of the sky at these energies, the ability to observe the sky in the hard x-ray/soft gamma-ray regime is important. While there are presently two other all-sky monitors that observe in the hard x-rays, the Monitor of All-sky X-ray Imaging (MAXI) on the International Space Station and the Burst Alert Telescope (BAT) on the Swift satellite, but only GBM has the capability to observe sources at soft gamma-ray energies. Here we present results from a search for transient events from sources in the GBM EOT catalog from the first 3 years of operation of Fermi.

Rodi, James; Camero-Arranz, A.; Case, G.; Chaplin, V.; Cherry, M.; Finger, M.; Jenke, P.; Taylor, J.; Wilson-Hodge, C.

2012-01-01

152

Charm and beauty searches using electron -D{sup 0} azimuthal correlations and microvertexing techniques in STAR experiment at RHIC  

SciTech Connect

The energy loss of heavy quarks in the hot and dense matter created at RHIC, can be used to probe the properties of the medium. Both charm and beauty quarks contribute to the non-photonic electrons through their semi-leptonic decays. It is essential to determine experimentally the relative contribution of charm and beauty quarks to understand the suppression of heavy flavors at high p{sub T} in central Au+Au collisions. The azimuthal angular correlations of non-photonic electrons with the reconstructed D{sup 0} allow to disentangle the contribution of charm and beauty and to reduce the background below the D{sup 0} invariant mass as well. We discuss the STAR measurement of non-photonic electron and D{sup 0{yields}}K{sup -{pi}+} azimuthal correlations in p+p collisions at 200 GeV. Furthermore, we show results from the application of microvertexing techniques for charm and beauty searches in Cu+Cu and Au+Au collisions at 200 GeV using the information of the Silicon tracker of STAR.

Geromitsos, Artemios [SUBATECH, Ecole de Mines, 4 rue Alfred Kastler, BP 20722, 44307, Nantes (France)

2010-12-22

153

Noninvasive continuous versus intermittent arterial pressure monitoring: evaluation of the vascular unloading technique (CNAP device) in the emergency department  

PubMed Central

Background Monitoring cardiovascular function in acutely ill patients in the emergency department (ED) is of paramount importance. Arterial pressure (AP) is usually monitored using intermittent oscillometric measurements with an upper arm cuff. The vascular unloading technique (VUT) allows continuous noninvasive AP monitoring. In this study, we compare continuous AP measurements obtained by VUT with intermittent oscillometric AP measurements in ED patients. In addition, we aimed to investigate whether continuous noninvasive AP monitoring allows detection of relevant hypotensive episodes that might be missed with intermittent AP monitoring. Methods In a German university hospital, 130 ED patients who required AP monitoring were analyzed in this prospective method comparison study. Continuous AP monitoring was performed using VUT (CNAP technology; CNSystems Medizintechnik AG, Graz, Austria) over a 2-hour period. The oscillometric AP values were recorded simultaneously every 15 minutes for the comparison of both methods. For statistical evaluation, Bland-Altman plots accounting for repeated AP measurements per individual were used. Results The mean difference (±standard deviation) between AP measurements obtained by VUT and oscillometric AP measurements was -5 mmHg (±22 mmHg) for systolic AP (SAP), -2 mmHg (±15 mmHg) for diastolic AP (DAP), and -6 mmHg (±16 mmHg) for mean AP (MAP), respectively. In the interval between two oscillometric measurements, the VUT device detected hypotensive episodes (?4 minutes) defined as either SAP <90 mmHg or MAP <65 mmHg in 30 patients and 16 patients, respectively. In 11 (SAP <90 mmHg) and 6 (MAP <65 mmHg) of these patients, hypotension was also detected by the subsequent intermittent oscillometric AP measurement. Conclusions VUT using the CNAP system for noninvasive continuous AP measurement shows reasonable agreement with intermittent oscillometric measurements in acutely ill ED patients. Continuous AP monitoring allows immediate recognition of clinically relevant hypotensive episodes, which are missed or only belatedly recognized with intermittent AP measurement.

2014-01-01

154

Advancements in Micrometeorological Technique for Monitoring CH4 Release from Remote Permafrost Regions: Principles, Emerging Research, and Latest Updates  

NASA Astrophysics Data System (ADS)

Flux stations have been widely used to monitor release and uptake rates of CO2, CH4, H2O and other gases from various ecosystems for climate research for over 30 years. The stations provide accurate and continuous measurements of gas exchange at time scales ranging from 15 or 30 minutes to multiple years, and at spatial scales ranging from thousands m2 to multiple km2, depending on the measurement height. The stations can nearly instantaneously detect rapid changes in gas release due to weather or man-triggered events (pressure changes, ice breakage and melts, ebullition events, etc.). They can also detect slow changes related to seasonal dynamics and man-triggered processes (seasonal freeze and thaw, long-term permafrost degradation, etc.). From 1980s to mid-2000s, station configuration, data collection and processing were highly-customized, site-specific and greatly dependent on "school-of-thought" practiced by a particular researcher. In the past 3-5 years, due to significant efforts of global and regional flux networks and technological developments, the methodology became fairly standardized. Majority of current stations compute gas emission and uptake rates using eddy covariance method, as one of the most direct micrometeorological techniques. Over 600 such flux stations operate in over 120 countries, using permanent and mobile towers or moving platforms (e.g., automobiles, helicopters, airplanes, ships, etc.). With increasing atmospheric temperatures in the Arctic likely resulting in a higher rate of permafrost degradation, measurements of gas exchange dynamics become particularly important. The permafrost regions store a significant amount of organic materials under anaerobic conditions, leading to large CH4 production and accumulation in the upper layers of bedrock, soil and ice. These regions may become a significant potential source of global CH4 release under a warming climate over the following decades and centuries. Present measurements of CH4 release in permafrost regions have mostly been made with static chamber techniques, and few were done with the eddy covariance approach using closed-path analyzers. Although chambers and closed-path analyzers have advantages, both techniques have significant limitations, especially for remote or portable research in cold regions. Static chamber measurements are discrete in time and space, and particularly difficult to use over polygonal tundra with highly non-uniform micro-topography and active soil layer. Closed-path gas analyzers for measuring CH4 eddy fluxes require climate control, employ high-power pumps, and generally require grid power and infrastructure. As a result, spatial coverage of eddy covariance CH4 flux measurements in cold regions remains limited. Existing stations are often located near grid power sources and roads rather than in the middle of the methane-producing ecosystem, while those that are placed appropriately may require extraordinary efforts to build and maintain them, with large investments into manpower and infrastructure. In this presentation, basic principles of eddy covariance flux measurements are explained, along with details on the CH4, CO2 and H2O exchange measurements using low-power flux stations. Also included are latest updates on the emerging research utilizing such stations in remote permafrost regions, and on the 2013-2014 development of fully automated remote unattended flux station capable of processing data on-the-go to continuously output final CH4 release rates.

Burba, George; Budishchev, Artem; Gioli, Beniamino; Haapanala, Sami; Helbig, Manuel; Losacco, Salvatore; Mammarella, Ivan; Moreaux, Virginie; Murphy, Patrick; Oechel, Walter; Peltola, Olli; Rinne, Janne; Sonnentag, Oliver; Sturtevant, Cove; Vesala, Timo; Zona, Donatella; Zulueta, Rommel

2014-05-01

155

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

NASA Astrophysics Data System (ADS)

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.

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

2013-09-01

156

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)

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.

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

157

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

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

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

2014-07-15

158

The use of a heuristic search technique for the optimization of quality of steel billets produced by continuous casting  

Microsoft Academic Search

This work proposes an interaction between a numerical heat transfer model and an artificial intelligence (AI) heuristic search method which is linked to a Knowledge Base for the continuous casting of quality billets (SAE 1010 steel). A two-dimensional heat transfer model was developed using a finite difference method and was applied to real dimensions of a steel billet continuous caster.

N. Cheung; A. Garcia

2001-01-01

159

A fast block-based motion estimation using early stop search techniques for H.264\\/AVC standard  

Microsoft Academic Search

H.264\\/AVC is a new video coding standard of the ITU-T video coding expert group which has a significant improvement in the rate distortion efficiency compared with the previous standards. However, there is an exhaustive motion search across multiple block sizes and multiple reference frames leading to a linear increase in processing time. Although, the encoding quality is improved, the complexity

Yasser Ismail; Mohamed Elgamel; Magdy A. Bayoumi

2007-01-01

160

V isualizing the structure of Iranian chemistry research in SciSearch using author co-citation technique  

Microsoft Academic Search

To visualize the structure of Iranian chemistry scientific publications in SciSearch, 43 Iranian and International chemists were identified. They were the highly cited scientists in 7682 Iranian chemistry publications (defined as an article with at least one Iranian author address) indexed in Science Citation Index during the period from 1990 to 2006. Co-citation data for these authors from the entire

Farideh Osareh; Katherine W. McCain

2008-01-01

161

Information Retrieval Techniques: The Differences in Cognitive Strategies and Search Behaviors among Graduate Students in an Academic Library.  

ERIC Educational Resources Information Center

Graduate schools have been admitting more and more students older than the "traditional" 18- to 24-year-old campus population. These adult learners may come to their programs of study without formal training in library use in general or literature searches in particular. By examining various successful and unsuccessful strategies used by these…

Simon, Charlotte E.

162

The capture–mark–recapture technique can be used as a stopping rule when searching in systematic reviews  

Microsoft Academic Search

ObjectiveResearchers have no empirically based search stopping rule when looking for potentially relevant articles for inclusion in systematic reviews. We tested a stopping strategy based on capture–mark–recapture (CMR; i.e., the Horizon Estimate) statistical modeling to estimate the total number of articles in the domain of clinical decision support tools for osteoporosis disease management using four large bibliographic databases (Medline, EMBASE,

Monika Kastner; Sharon E. Straus; K. Ann McKibbon; Charlie H. Goldsmith

2009-01-01

163

Special Investigation Report--Search and Rescue Procedures and Arming of Emergency Locator Transmitter: Aircraft Accident Near Michigan City, Indiana, December 7, 1980.  

National Technical Information Service (NTIS)

The circumstances surrounding the crash of a Beechcraft E-90, near Michigan City, Indiana, on December 7, 1980, prompted the Safety Board to initiate this special investigation of the search and rescue activities following the accident and of the associat...

1981-01-01

164

Consumers' Search Cost and Emerging Structure of Web Sites Coalitions: a Multi-agent Based Simulation of an Electronic Market1  

Microsoft Academic Search

We have developed an agent-based computational model, extension of an analytical model 5 that studies the structure of coalitions of B-to-C web sites, when Internet buyers incur search costs for finding the good that matches their preferences, and coalitions of sites reduce this cost through specialized search engines. This multi- agent model consists of heterogeneous, bounded rational agents: sites and

Jacques LAYE; Charis LINA; Herve TANGUY

2004-01-01

165

Part 7: CPR techniques and devices: 2010 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care.  

PubMed

A variety of CPR techniques and devices may improve hemodynamics or short-term survival when used by well-trained providers in selected patients. All of these techniques and devices have the potential to delay chest compressions and defibrillation. In order to prevent delays and maximize efficiency, initial training, ongoing monitoring, and retraining programs should be offered to providers on a frequent and ongoing basis. To date, no adjunct has consistently been shown to be superior to standard conventional (manual) CPR for out-of-hospital basic life support, and no device other than a defibrillator has consistently improved long-term survival from out-of-hospital cardiac arrest. PMID:20956223

Cave, Diana M; Gazmuri, Raul J; Otto, Charles W; Nadkarni, Vinay M; Cheng, Adam; Brooks, Steven C; Daya, Mohamud; Sutton, Robert M; Branson, Richard; Hazinski, Mary Fran

2010-11-01

166

The emergent role of focal liver ablation techniques in the treatment of primary and secondary liver tumours  

Microsoft Academic Search

Only 20% of patients with primary or secondary liver tumours are suitable for resection because of extrahepatic disease or the anatomical distribution of their disease. These patients could be treated by ablation of the tumour, thus preserving functioning liver. This study presents a detailed review of established and experimental ablation procedures. The relative merits of each technique will be discussed

G. Garcea; T. D. Lloyd; C. Aylott; G. Maddern; D. P. Berry

2003-01-01

167

Tabu search techniques for the heterogeneous vehicle routing problem with time windows and carrier-dependent costs  

Microsoft Academic Search

In this work we formalize a new complex variant of the classical vehicle routing problem arising from a real-world application.\\u000a Our formulation includes a heterogeneous fleet, a multi-day planning horizon, a complex carrier-dependent cost for vehicles,\\u000a and the possibility of leaving orders unscheduled.\\u000a \\u000a \\u000a For tackling this problem we propose a metaheuristic approach based on Tabu Search and on a combination

Sara Ceschia; Luca Di Gaspero; Andrea Schaerf

168

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

SciTech Connect

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.

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

169

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

NASA Technical Reports Server (NTRS)

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.

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

1978-01-01

170

Searching Smart on the World Wide Web. Tools and Techniques for Getting Quality Results. Internet Workshop Series No. 8.  

ERIC Educational Resources Information Center

An adaptation of a live workshop, this guide offers pertinent information and practical techniques for users to become proficient searchers and conscious evaluators of World Wide Web resources. The book does not provide comprehensive coverage of the Internet, rather it gives the exact amount and level of information needed to perform a successful…

Gould, Cheryl

171

Augmenting a Microbial Selective Plugging Technique with Polymer Flooding to Increase the Efficiency of Oil Recovery - A Search for Synergy  

SciTech Connect

The overall objective of this project was to improve the effectiveness of a microbial selective plugging technique of improving oil recovery through the use of polymer floods. More specifically, the intent was to increase the total amount of oil recovered and to reduce the cost per barrel of incremental oil.

Brown, Lewis R.; Pittman Jr., Charles; Lynch, F. Leo

2003-02-10

172

Automated index management for distributed web search  

Microsoft Academic Search

Distributed heterogeneous search systems are an emerging phenomenon in Web search, in which independent topic-specific search engines provide search services, and metasearchers distribute user's queries to only the most suitable search engines. Previous research has investigated methods for engine selection and merging of search results (i.e. performance improvements from the user's perspective). We focus instead on performance from the service

Rinat Khoussainov; Nicholas Kushmerick

2003-01-01

173

Virage Image Search Engine: An Open Framework for Image Management  

Microsoft Academic Search

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

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

1996-01-01

174

Eye Emergencies  

MedlinePLUS

... Emergencies Cardiac Emergencies Eye Emergencies Lung Emergencies Surgeries Eye Emergencies Marfan syndrome significantly increases your risk of ... light-sensitive membrane in the back of the eye (the retina) from its supporting layers. It is ...

175

Emergency surgery for Meckel's diverticulum.  

PubMed

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

Sharma, Raj Kumar; Jain, Vir Kumar

2008-01-01

176

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

PubMed

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

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

2014-10-01

177

Searching the Web  

Microsoft Academic Search

We oer an overview of current Web search engine design. After introducing a generic search engine architecture, we examine each engine component in turn. We cover crawling, local Web page storage, indexing, and the use of link analysis for boosting search performance. The most common design and implementation techniques for each of these components are presented. We draw for this

Arvind Arasu; Junghoo Cho; Hector Garcia-molina; Andreas Paepcke; Sriram Raghavan

2001-01-01

178

Case-based reasoning approach for heuristic search  

NASA Astrophysics Data System (ADS)

Case Based Reasoning (CBR) is one of the recently emerging paradigms for designing intelligent systems. The preliminary studies indicate that the area is ripe for theoretical advances and innovative applications. Heuristic search is one of the most widely used techniques to solve many real world problems for obtaining optimal solutions. In this paper we identify some necessary properties of the heuristic functions to be solved in the CBR paradigm. We designed a CBR system based on these observations and performed several experiments for a heuristic search problem. We also provide an analysis to compare the performance of the CBR system with the A* search algorithm.

Krovvidy, Srinivas; Wee, William G.; Han, Chia Y.

1991-03-01

179

Is searching full text more effective than searching abstracts?  

Microsoft Academic Search

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

Jimmy J. Lin

2009-01-01

180

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

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.

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

2012-09-15

181

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)

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.

Idawo, Cuthbert; Jajah, Munzer; Laneve, Giovanni

2004-02-01

182

The application of an emerging technique for protein-protein interaction interface mapping: the combination of photo-initiated cross-linking protein nanoprobes with mass spectrometry.  

PubMed

Protein-protein interaction was investigated using a protein nanoprobe capable of photo-initiated cross-linking in combination with high-resolution and tandem mass spectrometry. This emerging experimental approach introduces photo-analogs of amino acids within a protein sequence during its recombinant expression, preserves native protein structure and is suitable for mapping the contact between two proteins. The contact surface regions involved in the well-characterized interaction between two molecules of human 14-3-3? regulatory protein were used as a model. The employed photo-initiated cross-linking techniques extend the number of residues shown to be within interaction distance in the contact surface of the 14-3-3? dimer (Gln8-Met78). The results of this study are in agreement with our previously published data from molecular dynamic calculations based on high-resolution chemical cross-linking data and Hydrogen/Deuterium exchange mass spectrometry. The observed contact is also in accord with the 14-3-3? X-ray crystal structure (PDB 3dhr). The results of the present work are relevant to the structural biology of transient interaction in the 14-3-3? protein, and demonstrate the ability of the chosen methodology (the combination of photo-initiated cross-linking protein nanoprobes and mass spectrometry analysis) to map the protein-protein interface or regions with a flexible structure. PMID:24865487

Renata, Ptá?ková; Tomáš, Je?men; Petr, Novák; Ji?í, Hude?ek; Marie, Stiborová; Miroslav, Sulc

2014-01-01

183

The Application of an Emerging Technique for Protein-Protein Interaction Interface Mapping: The Combination of Photo-Initiated Cross-Linking Protein Nanoprobes with Mass Spectrometry  

PubMed Central

Protein–protein interaction was investigated using a protein nanoprobe capable of photo-initiated cross-linking in combination with high-resolution and tandem mass spectrometry. This emerging experimental approach introduces photo-analogs of amino acids within a protein sequence during its recombinant expression, preserves native protein structure and is suitable for mapping the contact between two proteins. The contact surface regions involved in the well-characterized interaction between two molecules of human 14-3-3? regulatory protein were used as a model. The employed photo-initiated cross-linking techniques extend the number of residues shown to be within interaction distance in the contact surface of the 14-3-3? dimer (Gln8–Met78). The results of this study are in agreement with our previously published data from molecular dynamic calculations based on high-resolution chemical cross-linking data and Hydrogen/Deuterium exchange mass spectrometry. The observed contact is also in accord with the 14-3-3? X-ray crystal structure (PDB 3dhr). The results of the present work are relevant to the structural biology of transient interaction in the 14-3-3? protein, and demonstrate the ability of the chosen methodology (the combination of photo-initiated cross-linking protein nanoprobes and mass spectrometry analysis) to map the protein-protein interface or regions with a flexible structure.

Ptackova, Renata; Jecmen, Tomas; Novak, Petr; Hudecek, Jiri; Stiborova, Marie; Sulc, Miroslav

2014-01-01

184

Emergency contraception  

MedlinePLUS

Morning-after pill; Postcoital contraception; Birth control - emergency; Plan B ... prevents pregnancy in the same way as regular birth control pills. TYPES OF EMERGENCY CONTRACEPTION Two emergency contraceptive ...

185

Emergency Contraception  

MedlinePLUS

... emergency contraceptive pills. If you are pregnant, have breast cancer, or have had blood clots, you should not use emergency contraceptive pills. Talk with your doctor about whether emergency ...

186

Pediatric emergencies: thoracic emergencies  

Microsoft Academic Search

.   Emergencies always require rapid diagnosis and an urgent or semi-urgent medical, interventional, or surgical action. In most\\u000a cases radiology plays an essential role in making an accurate diagnosis. Reviewing the causes of acute respiratory pathology\\u000a in the different pediatric age groups, we thought it would be interesting to divide the pathologies into two main parts: one\\u000a part concerning pathologies

L. Breysem; S. Loyen; A. Boets; M. Proesmans; K. De Boeck; M.-H. Smet

2002-01-01

187

Phonetic Searching Of Digital Audio  

NSDL National Science Digital Library

A new method of searching an audio file, dubbed the "phonetic search engine," is compared to traditional methods in this white paper. The 10-page pdf document has images and graphs to illustrate the process and results. Topics covered include audio searching techniques, implementation of new search methods, as well as current and future applications of the technology.

Cardillo, Peter S.; Clements, Mark; Miller, Michael

2007-12-10

188

Consigning "brutacaine" to history: a survey of pharmacological techniques to facilitate painful procedures in children in emergency departments in the UK  

PubMed Central

Objective To determine the proportion of emergency departments in the UK that use modern pharmacological methods of pain and anxiety control in children, such as analgesia with intranasal diamorphine, procedural sedation using ketamine or midazolam, and adrenaline–cocaine gel, TAC or LAT for anaesthetising wounds in children. Methods A survey UK Emergency Departments conducted by email, post and telephone. Results Of the 183 (70%) of UK Emergency Departments responding, sedation is achieved using ketamine in 27% and using midazolam in 54%. In 55% of emergency departments intranasal diamorphine is used for analgesia and 41% use at least one of the topical local?anaesthetic mixtures to anaesthetise wounds before suturing. Conclusions About half of UK emergency departments use modern pharmacological methods of procedural pain control in children. There is still considerable potential to improve the management of pain in children.

Loryman, B; Davies, F; Chavada, G; Coats, T

2006-01-01

189

A Search Algorithm for Global Optimisation  

Microsoft Academic Search

This paper investigates a global search optimisation technique, re- ferred to as the repeated weighted boosting search. The proposed optimisation algorithm is extremely simple and easy to implement. Heuristic explanation is given for the global search capability of this technique. Comparison is made with the two better known and widely used global search techniques, known as the genetic algorithm and

Sheng Chen; Xunxian Wang; Chris J. Harris

2005-01-01

190

Sources of error in emergency ultrasonography  

PubMed Central

Background To evaluate the common sources of diagnostic errors in emergency ultrasonography. Methods The authors performed a Medline search using PubMed (National Library of Medicine, Bethesda, Maryland) for original research and review publications examining the common sources of errors in diagnosis with specific reference to emergency ultrasonography. The search design utilized different association of the following terms : (1) emergency ultrasonography, (2) error, (3) malpractice and (4) medical negligence. This review was restricted to human studies and to English-language literature. Four authors reviewed all the titles and subsequent the abstract of 171 articles that appeared appropriate. Other articles were recognized by reviewing the reference lists of significant papers. Finally, the full text of 48 selected articles was reviewed. Results Several studies indicate that the etiology of error in emergency ultrasonography is multi-factorial. Common sources of error in emergency ultrasonography are: lack of attention to the clinical history and examination, lack of communication with the patient, lack of knowledge of the technical equipment, use of inappropriate probes, inadequate optimization of the images, failure of perception, lack of knowledge of the possible differential diagnoses, over-estimation of one’s own skill, failure to suggest further ultrasound examinations or other imaging techniques. Conclusions To reduce errors in interpretation of ultrasonographic findings, the sonographer needs to be aware of the limitations of ultrasonography in the emergency setting, and the similarities in the appearances of various physiological and pathological processes. Adequate clinical informations are essential. Diagnostic errors should be considered not as signs of failure, but as learning opportunities.

2013-01-01

191

Search Posts  

Cancer.gov

skip navigation NCI Office of Acquisitions Home About OA Contact Us Outreach Welcome Login Register All Posts Search Posts Help Search Posts Announcement Type*: Small Business Outreach Solicitation Award Keywords*: (Type in text or number to search

192

Searching with probabilities  

SciTech Connect

This book examines how probability distributions can be used as a knowledge representation technique. It presents a mechanism that can be used to guide a selective search algorithm to solve a variety of tactical chess problems. Topics covered include probabilities and searching the B algorithm and chess probabilities - in practice, examples, results, and future work.

Palay, A.J.

1985-01-01

193

Nuclear Emergency Planning in Norway.  

National Technical Information Service (NTIS)

The nuclear emergency planning in Norway is forming a part of the Search and Rescue Service of the country. Due to the fact that Norway do not have any nucleat power reactor, the nuclear emergency planning has not been given high priority. The problems ho...

J. Baarli

1986-01-01

194

Enhancing canine disaster search  

Microsoft Academic Search

This paper describes canine augmentation technology (CAT) for use in urban search and rescue (USAR). CAT is a WiFi enabled sensor array that is worn by a trained canines deployed in urban disasters. The system includes, but is not limited to, cameras that provide emergency responders with real-time data to remotely monitor, analyze and take action during USAR operations. An

James Tran; Alexander Ferworn; Cristina Ribeiro; Mieso Denko

2008-01-01

195

Diabetic Emergencies  

MedlinePLUS

... blurb should go here Social Media ACEP in Social Media Campaigns Campaigns Read Patient Stories Health News About Emergencies Childhood / Student Emergencies Diseases & Infections Disaster Preparedness Elderly Safety Holiday & Seasonal Injury Prevention Travel & Motor Vehicle ...

196

Penile emergencies.  

PubMed

The penis is a very sensitive organ and even minor injury or discomfort may cause a patient to seek emergency evaluation. Emergency practitioners must be most concerned with the entities that, if left untreated, can result in ischemia and necrosis of the penis, namely ischemic priapism, paraphimosis, and entrapment injury. Any penile trauma should be considered an emergency until proven otherwise. This article discusses emergent penile complaints in adults, with emphasis on the most serious and common conditions. PMID:21782070

Dubin, Jeffrey; Davis, Jonathan E

2011-08-01

197

Consequences of emergency contraceptives: the adverse effects.  

PubMed

Introduction: Emergency contraception (EC) offers women an important strategy to prevent unintended pregnancy following intercourse. Despite the constant improvement of availability of different molecules and techniques already existing (Yuzpe regimen, levonorgestrel, intrauterine device) and the emergence of ulipristal acetate, the numbers of unintended pregnancies and unplanned births could still be reduced. Areas covered: This review will evaluate all the information about the potential adverse effects and tolerability of each method of EC by putting them in balance with their safety and effectiveness. A literature search until December 2013 was performed to identify all trials studying the safety data available concerning EC. Expert opinion: Different means of EC have been demonstrated to be generally safe and well tolerated. These data support women information in order to improve use and efficacy of EC. PMID:24918174

Thomin, Anne; Keller, Valentin; Daraï, Emile; Chabbert-Buffet, Nathalie

2014-07-01

198

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

Microsoft Academic Search

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

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

1993-01-01

199

Tabu Search  

Microsoft Academic Search

This article explores the meta-heuristic approach called tabu search, which is dramatically changing our ability to solve a host of problems in applied science, business and engineering. Tabu search has important links to evolutionary and \\

Fred Glover; Manuel Laguna

2003-01-01

200

Savvy Searching.  

ERIC Educational Resources Information Center

Explains desktop metasearch engines, which search the databases of several search engines simultaneously. Reviews two particular versions, the Copernic 2001 Pro and the BullsEye Pro 3, comparing costs, subject categories, display capabilities, and layout for presenting results. (LRW)

Jacso, Peter

2002-01-01

201

Searching for the Perfect Match: A Comparison of Free Sorting Results for Images by Human Subjects and by Latent Semantic Analysis Techniques  

Microsoft Academic Search

Oftentimes, retrieval engines return endless lists of rank- ordered matching documents or images. The preorganization of search results into categories of documents with similar content based on research on human clustering strategies seems to be a promising way to manage this information flood. Information visualization can improve the access and manipulation of digital data if it conforms to human expectations,

Katy Börner

2000-01-01

202

Emergency telepsychiatry.  

PubMed

Telepsychiatry can be used in two kinds of psychiatric emergencies: one-time clinical events and public health situations associated with mass disaster. Emergency telepsychiatry delivered by videoconferencing has the potential to improve patient care in many settings. Although experience is limited, it has been found to be safe and effective, as well as satisfactory to both emergency department staff and the psychiatric patients treated. The development of comprehensive and standardized guidelines is necessary. There has been little use of acute telemedicine in disaster situations to date. However, telemedicine is becoming part of routine emergency medical response planning in many jurisdictions. Emergency telepsychiatry has the potential to reduce emergency department overcrowding, provide much needed care in rural areas and improve access to psychiatric care in the event of a natural or man-made disaster. PMID:18776070

Yellowlees, Peter; Burke, Michelle M; Marks, Shayna L; Hilty, Donald M; Shore, Jay H

2008-01-01

203

Dynamic Search Spaces for Coordinated Autonomous Marine Search and Tracking  

Microsoft Academic Search

This paper presents a technique for dynamically determining search spaces in order to enable sensor exploration during autonomous\\u000a search and tracking (SAT) missions. In particular, marine search and rescue scenarios are considered, highlighting the need\\u000a for exploration during SAT. A comprehensive method which is independent of search space representation is introduced, based\\u000a on exploration frontiers and reachable set analysis. The

Benjamin Lavis; Tomonari Furukawa

2007-01-01

204

Neurotoxic emergencies.  

PubMed

Neurotoxic emergencies are depicted by severe disruption of critical central or peripheral nervous system functions caused by xenobiotics with rapid mechanisms of action. This article reviews 4 categories of neurotoxic emergency: drug-induced and toxin-induced seizures, acute depressed mental status, acute excited mental status, and peripheral neurotoxic agents. Selected xenobiotics, representing the frontiers of neurotoxic emergencies, are discussed in detail based on the major neurotransmitters involved. PMID:21803209

Barry, J Dave; Wills, Brandon K

2011-08-01

205

Search Engines  

Microsoft Academic Search

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

Rustam Al-Shahi

2001-01-01

206

Dewey Searches!  

ERIC Educational Resources Information Center

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)

School Library Media Activities Monthly, 2000

2000-01-01

207

Analytical improvements of hybrid LCMS\\/MS techniques for the efficient evaluation of emerging contaminants in river waters: a case study of the Henares River (Madrid, Spain)  

Microsoft Academic Search

Purpose  Instrumental capabilities and software tools of modern hybrid mass spectrometry (MS) instruments such as high-resolution mass\\u000a spectrometry (HRMS), quadrupole time-of-flight (QTOF), and quadrupole linear ion trap (QLIT) were experimentally investigated\\u000a for the study of emerging contaminants in Henares River water samples.\\u000a \\u000a \\u000a \\u000a \\u000a Methods  Automated screening and confirmatory capabilities of QTOF working in full-scan MS and tandem MS (MS\\/MS) were explored when\\u000a dealing

Andrés Pérez-Parada; María del Mar Gómez-Ramos; María Jesús Martínez Bueno; Samanta Uclés; Ana Uclés; Amadeo R. Fernández-Alba

208

Humanitarian Emergencies  

Microsoft Academic Search

Countries or regions affected by humanitarian emergencies remain challenging situations for the provision of health and nutrition services in developing countries. Major advances in recent decades have been made regarding our knowledge of the main causes of morbidity and mortality in humanitarian emergencies, the availability of standardized guidance protocols and indicators, and the development of new products, especially for severely

Reinhard Kaiser; Paul B. Spiegel

209

Improving Search Engine Reliability  

NASA Astrophysics Data System (ADS)

Search engines on the Internet are used daily to access and find information. While these services are providing an easy way to find information globally, they are also suffering from artificially created false results. This paper describes two techniques that are being used to manipulate the search engines: spam pages (used to achieve higher rankings on the result page) and cloaking (used to feed falsified data into search engines). This paper also describes two proposed methods to fight this kind of misuse, algorithms for both of the formerly mentioned cases of spamdexing.

Pruthi, Jyoti; Kumar, Ela

2010-11-01

210

Pediatric emergency medical services and their drawbacks  

PubMed Central

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.

Al-Anazi, Abdullah Foraih

2012-01-01

211

Augmenting a Microbial Selective Plugging Technique with Polymer Flooding to Increase the Efficiency of Oil Recovery: A Search for Synergy. Third Semi-Annual Progress Report.  

National Technical Information Service (NTIS)

The overall objective of this project was to improve the effectiveness of a microbial selective plugging technique of improving oil recovery through the use of polymer floods. More specifically, the intent was to increase the total amount of oil recovered...

L. R. Brown A. A. Vadie C. U. Pittman F. L. Lynch

2000-01-01

212

Augmenting a Microbial Selective Plugging Technique with Polymer Flooding to Increase the Efficiency of Oil Recovery: A Search for Synergy. Fifth Semi-Annual Progress Report.  

National Technical Information Service (NTIS)

The overall objective of this project was to improve the effectiveness of a microbial selective plugging technique of improving oil recovery through the use of polymer floods. More specifically, the intent was to increase the total amount of oil recovered...

L. R. Brown C. U. Pittman F. L. Lynch A. A. Vadie

2002-01-01

213

Emergency Contraception  

MedlinePLUS

... provider after using emergency contraception pills? • Can I get pregnant later in my menstrual cycle after I have ... pregnancy if you are already pregnant. Can I get pregnant later in my menstrual cycle after I have ...

214

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 ...

215

The challenging image-guided abdominal mass biopsy: established and emerging techniques 'if you can see it, you can biopsy it'.  

PubMed

Image-guided percutaneous biopsy of abdominal masses is among the most commonly performed procedures in interventional radiology. While most abdominal masses are readily amenable to percutaneous biopsy, some may be technically challenging for a number of reasons. Low lesion conspicuity, small size, overlying or intervening structures, motion, such as that due to respiration, are some of the factors that can influence the ability and ultimately the success of an abdominal biopsy. Various techniques or technologies, such as choice of imaging modality, use of intravenous contrast and anatomic landmarks, patient positioning, organ displacement or trans-organ approach, angling CT gantry, triangulation method, real-time guidance with CT fluoroscopy or ultrasound, sedation or breath-hold, pre-procedural image fusion, electromagnetic tracking, and others, when used singularly or in combination, can overcome these challenges to facilitate needle placement in abdominal masses that otherwise would be considered not amenable to percutaneous biopsy. Familiarity and awareness of these techniques allows the interventional radiologist to expand the use of percutaneous biopsy in clinical practice, and help choose the most appropriate technique for a particular patient. PMID:23381506

Sainani, Nisha I; Arellano, Ronald S; Shyn, Paul B; Gervais, Debra A; Mueller, Peter R; Silverman, Stuart G

2013-08-01

216

Harmony Search Algorithms in Structural Engineering  

Microsoft Academic Search

\\u000a Harmony search method is widely applied in structural design optimization since its emergence. These applications have shown\\u000a that harmony search algorithm is robust, effective and reliable optimization method. Within recent years several enhancements\\u000a are suggested to improve the performance of the algorithm. Among these Mahdavi has presented two versions of harmony search\\u000a methods. He named these as improved harmony search

M. P. Saka; I. Aydogdu; O. Hasancebi; Z. W. Geem

217

Perception redux: Emergence of structure  

NASA Astrophysics Data System (ADS)

Perceptions were evolved that computed a rather difficult nonlinear Boolean function. The results with this early and basic form of emergent computation suggested that when genetic search is applied to its structure, a perceptron can learn more complex tasks than is sometimes supposed. The results also suggested, in the light of related work on classifier systems, that to hasten the emergence of an emergent computation it is desirable to provide evaluative feedback at a level as close as possible to that of the constituent local computations.

Wilson, Stewart W.

1990-06-01

218

The Evolution of Emergent Computation  

NASA Astrophysics Data System (ADS)

A simple evolutionary process can discover sophisticated methods for emergent information processing in decentralized spatially extended systems. The mechanisms underlying the resulting emergent computation are explicated by a technique for analyzing particle-based logic embedded in pattern-forming systems. Understanding how globally coordinated computation can emerge in evolution is relevant both for the scientific understanding of natural information processing and for engineering new forms of parallel computing systems.

Crutchfield, James P.; Mitchell, Melanie

1995-11-01

219

Using volume holograms to search digital databases  

Microsoft Academic Search

Holographic data storage ofiers the potential for simultaneous search of an entire database by performing multiple optical correlations between stored data pages and a search argument (1, 2). This content{addressable retrieval produces one analog correlation score for each stored volume hologram. We have previously developed fuzzy encoding techniques for this fast parallel search, and holographically searched a small database with

Geofirey W. Burr; George Maltezos; Felix Grawert; Sebastian Kobras; Holger Hanssen; Hans Coufal

2001-01-01

220

Emerging nondestructive inspection methods for aging aircraft.  

National Technical Information Service (NTIS)

This report identifies and describes emerging nondestructive inspection (NDI) methods that can potentially be used to inspect commercial transport and commuter aircraft for structural damage. The nine categories of emerging NDI techniques are: acoustic em...

A. Beattie L. Dahlke J. Gieske

1994-01-01

221

Emerging Viruses  

NSDL National Science Digital Library

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.

Lee, Amy.

2002-01-01

222

Role of imaging in the diagnosis and management of patients with cardiac amyloidosis: state of the art review and focus on emerging nuclear techniques.  

PubMed

Amyloidosis is an infiltrative disease characterized by deposition of amyloid fibrils within the extracellular tissue of one or multiple organs. Involvement of the heart, cardiac amyloidosis, is recognized as a common cause of restrictive cardiomyopathy and heart failure. The two major types of cardiac amyloidosis are cardiac amyloid light-chain (AL) and transthyretin-related cardiac amyloidosis (ATTR, mutant and wild types) (Nat Rev Cardiol 2010;7:398-408). While early recognition of cardiac amyloidosis is of major clinical importance, so is the ability to differentiate between subtypes. Indeed, both prognosis and therapeutic options vary drastically depending on the subtype. While endomyocardial biopsy with immunostaining is considered the gold standard, advances in imaging provide an attractive non-invasive alternative. Currently, electrocardiography, echocardiography, and cardiac magnetic resonance imaging are all used in the evaluation of cardiac amyloidosis with varying diagnostic and prognostic accuracy. Yet, none of these modalities can effectively differentiate the cardiac amyloid subtypes. Recent data with (99m)Tc-phosphate derivatives, previously used as bone seeking radioactive tracers, have shown promising results; these radiotracers selectively bind ATTR, but not AL subtype, and can differentiate subtypes with high diagnostic accuracy. This review will initially present the non-radionuclide imaging techniques and then focus on the radionuclide imaging techniques, particularly (99m)Tc-DPD and (99m)Tc-PYP, mechanism of action, performance and interpretation of the study, diagnostic accuracy, prognostic value, future clinical perspective, and outlook. PMID:24347127

Aljaroudi, Wael A; Desai, Milind Y; Tang, W H Wilson; Phelan, Dermot; Cerqueira, Manuel D; Jaber, Wael A

2014-04-01

223

Emerging phleboviruses?  

PubMed Central

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.

Elliott, Richard M; Brennan, Benjamin

2014-01-01

224

Emerging phleboviruses.  

PubMed

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

Elliott, Richard M; Brennan, Benjamin

2014-04-01

225

Exoplanet search with astrometry  

Microsoft Academic Search

Searching for extrasolar planets by direct detection is extremely challenging for current instrumentation. Indirect methods, that measure the effect of a planet on its host star, are much more promising and have indeed led to the discovery of nearly all extrasolar planetary systems known today. While the most successful method thus far is the radial velocity technique, new interferometric instruments

Ralf Launhardt; Max Planck

2009-01-01

226

Applying skeletal, histological and molecular techniques to syphilitic skeletal remains from the past  

Microsoft Academic Search

Many have been searching for and contemplating the origins of syphilis. By understanding its emergence as a human pathogen we will be better able to elucidate its evolution through time and space as well as shed light on its current state. Ancient DNA techniques used to isolate Treponema pallidum subspecies pallidum DNA from archaeological human specimens provides direct evidence of

Tanya von Hunnius

2004-01-01

227

Applying Skeletal, Histological and Molecular Techniques to Syphilitic Skeletal Remains from the Past  

Microsoft Academic Search

Many have been searching for and contemplating the origins of syphilis. By understanding its emergence as a human pathogen we will be better able to elucidate its evolution through time and space as well as shed light on its current state. Ancient DNA techniques used to isolate Treponema pallidum subspecies pallidum DNA from archaeological human specimens provides direct evidence of

Tanya von Hunnius

2004-01-01

228

Emergent technologies: 25 years  

NASA Astrophysics Data System (ADS)

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.

Rising, Hawley K.

2013-03-01

229

Emergency cricothyrotomy - a systematic review  

PubMed Central

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.

2013-01-01

230

Search Engine Marketing: Transforming Search Engines into Hotel Distribution Channels  

Microsoft Academic Search

Search engine marketing (SEM) is a form of online marketing whereby marketers and webmasters use a range of techniques to ensure that their webpage listing appears in a favorable location in search engines’ results pages (e.g., Google, Bing, AlltheWeb, Altavista). The key strategy is to optimize webpages for the search engines, by ensuring that the company’s webpages contain appropriate keywords

Alexandros Paraskevas; Ioannis Katsogridakis; Rob Law; Dimitrios Buhalis

2011-01-01

231

Hacking Techniques  

Microsoft Academic Search

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

Richard Barber

2001-01-01

232

Search Tips  

MedlinePLUS

... What do the links in the 'Refine by Keyword' box mean? The 'Refine by Keyword' box organizes your search results into groups based ... words in quotation marks. For example, "health services research" retrieves pages containing that phrase. Return to top ...

233

Clinical Concepts on Thyroid Emergencies  

PubMed Central

Objective: Thyroid-related emergencies are caused by overt dysfunction of the gland which are so severe that require admission to intensive care units (ICU) frequently. Nonetheless, in the ICU setting, it is crucial to differentiate patients with non-thyroidal illness and alterations in thyroid function tests from those with intrinsic thyroid disease. This review presents and discusses the main etiopathogenetical and clinical aspects of hypothyroid coma (HC) and thyrotoxic storm (TS), including therapeutic strategy flow-charts. Furthermore, a special chapter is dedicated to the approach to massive goiter, which represents a surgical thyroid emergency. Data Source: We searched the electronic MEDLINE database on September 2013. Data Selection and Data Extraction: Reviews, original articles, and case reports on “myxedematous coma,” “HC,” “thyroid storm,” “TS,” “massive goiter,” “huge goiter,” “prevalence,” “etiology,” “diagnosis,” “therapy,” and “prognosis” were selected. Data Synthesis and Conclusion: Severe excess or defect of thyroid hormone is rare conditions, which jeopardize the life of patients in most cases. Both HC and TS are triggered by precipitating factors, which occur in patients with severe hypothyroidism or thyrotoxicosis, respectively. The pillars of HC therapy are high-dose l-thyroxine and/or tri-iodothyroinine; i.v. glucocorticoids; treatment of hydro-electrolyte imbalance (mainly, hyponatraemia); treatment of hypothermia; often, endotracheal intubation and assisted mechanic ventilation are needed. Therapy of TS is based on beta-blockers, thyrostatics, and i.v. glucocorticoids; eventually, high-dose of iodide compounds or lithium carbonate may be of benefit. Surgery represents the gold standard treatment in patients with euthyroid massive nodular goiter, although new techniques – e.g., percutaneous laser ablation – are helpful in subjects at high surgical risk or refusing operation.

Papi, Giampaolo; Corsello, Salvatore Maria; Pontecorvi, Alfredo

2014-01-01

234

Electronic search and rescue aids  

NASA Technical Reports Server (NTRS)

There are two elements to the basic electronic search and rescue problem: a means for immediately alerting potential rescuers and an effective method to guide the rescue forces to the scene of the emergency. An Emergency Locator Transmitter (ELT) used by aircraft or an Emergency Position Indicating Radio Beacon (EPIRB) used by maritime vessels has the capability of providing for both an immediate alert and a homing signal to assist rescue forces in locating the site of the distress. This paper describes the development of ELT/EPIRB systems. Emphasis is placed on the SARSAT project, the COSPAS/SARSAT project, and an experimental 406 MHz ELT/EPIRB system.

Trudell, B. J.

1980-01-01

235

Emergent Curriculum.  

ERIC Educational Resources Information Center

Emergent curriculum in early childhood education refers to the process of using the spontaneity generated in the daily life of the children and adults in the program, along with teacher planning, to develop the curriculum. This book presents a story about a year in the life of a fictional child care center as a context for the discussion of…

Jones, Elizabeth; Nimmo, John

236

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: ...

237

Emergency cricothyrotomy.  

PubMed

The indications for the ruling for the Gulf Forces that emergency cricothyrotomy is to be performed where the airway is thought to be compromised are reviewed. The advantages of this procedure are outlined and some of the likely consequences regarding the incidence of complications and their management predicted. PMID:1761938

Milner, S M; Bennett, J D

1991-11-01

238

On the effectiveness of anonymizing networks for web search privacy  

Microsoft Academic Search

Web search has emerged as one of the most important applications on the internet, with several search engines available to the users. There is a common practice among these search engines to log and analyse the user queries, which leads to serious privacy implications. One well known solution to search privacy involves issuing the queries via an anonymizing network, such

Sai Teja Peddinti; Nitesh Saxena

2011-01-01

239

Current trends in the integration of searching and browsing  

Microsoft Academic Search

Searching and browsing are the two basic information discovery paradigms, since the early days of the Web. After more than ten years down the road, three schools seem to have emerged: (1) The search-centric school argues that guided navigation is superfluous since free form search has become so good and the search UI so common, that users can satisfy all

Andrei Z. Broder; Yoelle S. Maarek; Krishna Bharat; Susan T. Dumais; Steve Papa; Jan O. Pedersen; Prabhakar Raghavan

2005-01-01

240

[Vascular access in emergency paediatric anaesthesia].  

PubMed

There is very little literature to guide the young practitioner in caring for a child that needs emergency surgery and has difficult venous access. Questionnaires were sent to 89 members of the Swiss Paediatric Anaesthesia Society and to the heads of Anaesthesia Departments of Swiss teaching hospitals. Two typical case records were presented, both of which were characterised by the fact that 2-3 peripheral venous cannulation attempts were unsuccessful. Case A: a young child with a fracture of the radius and case B an infant with upper gastrointestinal ileus. The anaesthetists were then questioned regarding their preferences for optimal treatment. The majority would proceed with further attempts and, if these still failed, intramuscular or inhalational induction of anaesthesia was suggested as a reasonable choice for case A. However, for case B, a femoral venous or intraosseous access to the venous system was judged to be the safest method. On the basis of our inquiry and a literature search, a priority list was developed to suggest the best possible techniques for vascular access and alternative anaesthesia induction techniques for emergency paediatric procedures. PMID:15609024

Jordi Ritz, E-M; Erb, T O; Frei, F J

2005-01-01

241

Distributed Search and Pattern Matching  

NASA Astrophysics Data System (ADS)

Peer-to-peer (P2P) technology has triggered a wide range of distributed applications including file-sharing, distributed XML databases, distributed computing, server-less web publishing and networked resource/service sharing. Despite of the diversity in application, these systems share common requirements for searching due to transitory nodes population and content volatility. In such dynamic environment, users do not have the exact information about available resources. Queries are based on partial information. This mandates the search mechanism to be emphflexible. On the other hand, the search mechanism is required to be bandwidth emphefficient to support large networks. Variety of search techniques have been proposed to provide satisfactory solution to the conflicting requirements of search efficiency and flexibility. This chapter highlights the search requirements in large scale distributed systems and the ability of the existing distributed search techniques in satisfying these requirements. Representative search techniques from three application domains, namely, P2P content sharing, service discovery and distributed XML databases, are considered. An abstract problem formulation called Distributed Pattern Matching (DPM) is presented as well. The DPM framework can be used as a common ground for addressing the search problem in these three application domains.

Ahmed, Reaz; Boutaba, Raouf

242

NASA's Search-and-Rescue Technology  

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...

243

Motion planning through policy search  

Microsoft Academic Search

We propose a motion planning algorithm. for performing policy search in the full pose and velocity space of a mobile robot. By comparison, existing techniques optimize high-level plans, but fail to optimize the low-level motion controls. We use policy search in a high dimensional control space to find plans that lead. to measurably better motion planning. Our experimental results suggest

Nicholas Roy; Sebastian Thrunt

2002-01-01

244

Motion Planning through Policy Search  

Microsoft Academic Search

We propose a motion planning algorithm for performing policy search in the full pose and velocity space of a mo- bile robot. By comparison, existing techniques optimize high-level plans, but fail to optimize the low-level mo- tion controls. We use policy search in a high dimensional control space to find plans that lead to measurably better motion planning. Our experimental

Nicholas Roy; Sebastian Thrun

245

[Psychiatric emergencies].  

PubMed

Psychiatric emergencies must not just be seen as catastrophies. They invariably represent the nadir of a development which has not been given enough attention while it arose. In contrast to a typical medical emergency situation the doctor is usually not particularly welcome by the disturbed psychiatric patient and his family. This may represent some hardship for the good doctor. When arriving at the scene of a psychiatric emergency, an accurate differential diagnosis will be of primary importance. Suicidality, disturbances of consciousness, states of excitement, dyskinesias and affective crises are the most frequent findings. In contrast to a somatic crisis where rapid intervention may be life-saving, it is advisable, to take your time and make sure you took everything into account, before making a decision. Sometimes the use of medication can dramatically change the scene from drama to dialogue. Basically, one has to determine if a hospitalization is necessary or not. Two primary concerns have to be looked into here: suicidal risk and dangerousness to others. It is good to be aware of those situations and diagnoses well known for their high suicidal potential. The question which - if any - compulsive measures have to be taken has to be answered and acted upon. Unpopular as they may be, they can resolve an extremely difficult situation within minutes. Unnecessary hesitation is not asked here for the sake of the patient as well as his family. The best way to deal with psychiatric emergencies is to avoid them. Looking out for signs and symptoms of a beginning psychotic development or suicidal ideation and acting upon it, for instance with medication and/or intensifying contacts with the patient are the primary means to prevent a crisis. Stopping medication, by patient or doctor, is one of the main reasons for psychiatric emergencies. After a psychiatric emergency has evolved, it pays out, to carefully analyse its development, the way it was handled and how it finally ended. Thus a crisis may, like the Chinese symbol for it with its double meaning, evolve to a chance for the patient. PMID:8999491

Laemmel, K

1996-12-10

246

Emergency Medical Treatment for the "Wilderness" Context.  

ERIC Educational Resources Information Center

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,…

National Association for Search and Rescue, Fairfax, VA.

247

[Diabetes emergencies].  

PubMed

Diabetes-associated emergencies are frequent and include hyperglycemic states, such as diabetic ketoacidosis (DKA) and hyperosmolar hyperglycemic state (HHS) as well as hypoglycemia (hypoglycemic coma) and metabolic disturbances that are unrelated to pathological blood glucose aberrations (lactic acidosis). Knowledge of the respective risk situations, key signs and symptoms as well as early detection, special aspects of intensive care treatment and procedures for the prevention of these diabetes emergency cases is a must not only for the duty doctor in intensive care but also for diabetologists, internists and family doctors in the outpatient situation. The basic facts on these issues are presented in this continuing medical education (CME) article in a didactically clear form. PMID:24820043

Scherbaum, W A; Scherbaum, C R

2014-05-01

248

BioText Search Engine: beyond abstract search.  

PubMed

The BioText Search Engine is a freely available Web-based application that provides biologists with new ways to access the scientific literature. One novel feature is the ability to search and browse article figures and their captions. A grid view juxtaposes many different figures associated with the same keywords, providing new insight into the literature. An abstract/title search and list view shows at a glance many of the figures associated with each article. The interface is carefully designed according to usability principles and techniques. The search engine is a work in progress, and more functionality will be added over time. Availability: http://biosearch.berkeley.edu. PMID:17545178

Hearst, Marti A; Divoli, Anna; Guturu, Harendra; Ksikes, Alex; Nakov, Preslav; Wooldridge, Michael A; Ye, Jerry

2007-08-15

249

Functional Search-based Testing from State Machines  

Microsoft Academic Search

The application of metaheuristic search techniques in test data generation has been extensively investigated in recent years. Most studies, however, have concentrated on the application of such techniques in structural testing. The use of search-based techniques in functional testing is less frequent, the main cause being the implicit nature of the specification. This paper investigates the use of search-based techniques

Raluca Lefticaru; Florentin Ipate

2008-01-01

250

Fibonacci Search with Arbitrary First Evaluation.  

National Technical Information Service (NTIS)

The Fibonacci search technique for maximizing a unimodal function of one real variable is generalized to the case of a given first evaluation. This technique is then employed to determine the optimal sequential search technique for the maximization of a c...

C. Witzgall

1969-01-01

251

Search Standard  

NSDL National Science Digital Library

Sherlock, first described in the October 16, 1998 Scout Report, is the new search tool provided by Mac OS 8.5 which allows users to perform searches of Websites without opening a browser. One of the great advantages of Sherlock is its ability to create a plug-in for any Web-based search engine. Since the release, the collection of Sherlock plug-ins has grown to number over 250. A few sites have taken up the task of collecting and organizing these plug-ins. While the Apple-Donuts site is a bit more polished than the others, all three of these sites provide fairly complete listings of the available plug-ins.

1999-01-01

252

The Emergent Curriculum  

Microsoft Academic Search

The emergent curriculum model, which enables learners to assist in curriculum construction, was used in a nutrition education program with senior citizens in a Title III-C program in New York City. Topics selected for discussion in the seven one-hour-per-week sessions were based on intake interview data, analysis of questions asked during sessions and direct solicitation. Techniques of participant observation for

Elaine Kris Ludman

1983-01-01

253

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.

254

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

PubMed

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

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

2009-03-15

255

Emergency Response Manual  

NASA Technical Reports Server (NTRS)

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.

Barnett, Traci M.

2004-01-01

256

Nearest Neighbor Searching in Binary Search Trees: Simulation of a Multiprocessor System.  

ERIC Educational Resources Information Center

Describes the simulation of a nearest neighbor searching algorithm for document retrieval using a pool of microprocessors. Three techniques are described which allow parallel searching of a binary search tree as well as a PASCAL-based system, PASSIM, which can simulate these techniques. Fifty-six references are provided. (Author/LRW)

Stewart, Mark; Willett, Peter

1987-01-01

257

Searching Secrets  

Microsoft Academic Search

A Fourth Amendment violation has traditionally involved a physical intrusion such as the search of a house or the seizure of a person or her papers. Today, investigators rarely need to break down doors, rummage through drawers, or invade one’s peace and repose to obtain incriminating evidence in an investigation. Instead, the government may unobtrusively intercept information from electronic files,

Nita A. Farahany

2012-01-01

258

Biomedical Search  

NSDL National Science Digital Library

Wading through the tremendous online resource that is the BioMed archive can be a bit tricky at times. This process just got much easier through the creation of the BioMedSearch feature. The goal of this work is "to make these important works available to the community in a way that is fast and easy, while still offering the advanced features demanded by power users such as portfolios, collaboration features, bibliographical citation export, alerts, and more." Their search engine contains all of the data in Pub Med/Medline, along with additional full-text documents, and a large database of theses and dissertations. Many users will find the "Clusters" section of the site most useful. Here, visitors can view "clusters" of documents grouped together thematically into topics such as clinical trials, exercises, diet and cholesterol, and medical imagining. The homepage contains a basic search engine, and visitors may also wish to use the "Search Tutorial" to gain a better understanding of how best to use the archive.

259

Project SEARCH  

ERIC Educational Resources Information Center

Project SEARCH is a cooperative program developed for and by New York education administrators and teachers to develop products and processing for humanizing education. Its aim is to reorient teacher attitudes toward the arts through workshops that develop teachers' capacities for affective aesthetic response. Teachers then are guided in efforts…

Trupia, Charles J.

1978-01-01

260

Study on space evacuation vulnerability in city emergency  

Microsoft Academic Search

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.

Fanliang Bu; Hui Fang

2010-01-01

261

Advances in search and rescue at sea  

NASA Astrophysics Data System (ADS)

A topical collection on "Advances in Search and Rescue at Sea" has appeared in recent issues of Ocean Dynamics following the latest in a series of workshops on "Technologies for Search and Rescue and other Emergency Marine Operations" (2004, 2006, 2008, and 2011), hosted by IFREMER in Brest, France. Here, we give a brief overview of the history of search and rescue at sea before we summarize the main results of the papers that have appeared in the topical collection.

Breivik, Øyvind; Allen, Arthur Addoms; Maisondieu, Christophe; Olagnon, Michel

2013-01-01

262

TOWARDS FEDERATED CONSUMER PRODUCT SEARCH FROM HETEROGENEOUS SOURCES  

Microsoft Academic Search

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

Daniel Schuster; Maximilian Walther; Iris Braun

263

Intelligent Searching System Based on Manufacturing Resource Personalized Service  

Microsoft Academic Search

Currently, the traditional search techniques canpsilat meet peoplepsilas demand. Along with constantly improving the precision and recall ratio of search engine, the demand of personalized service becomes particularly outstanding. Intelligent search system of network manufacturing resource is a focused search engine which orients to network manufacturing resource. Meanwhile, the system includes personalized service to improve the intelligent level of search.

Xie Qingsheng; Pan Weijie; Li Shaobo; Yang Guanci

2009-01-01

264

Mining User preference using Spy voting for search engine personalization  

Microsoft Academic Search

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

Ng Wilfred; Lin Deng; Dik Lun Lee

2007-01-01

265

Emerging holography  

SciTech Connect

We rederive AdS/CFT predictions for infrared two-point functions by an entirely four-dimensional approach, without reference to holography. This approach, originally due to Migdal in the context of QCD, utilizes an extrapolation from the ultraviolet to the infrared using a Pade approximation of the two-point function. We show that the Pade approximation and AdS/CFT give the same leading order predictions, and we discuss including power corrections such as those due to condensates of gluons and quarks in QCD. At finite order the Pade approximation provides a gauge invariant regularization of a higher dimensional gauge theory in the spirit of deconstructed extra dimensions. The radial direction of anti-de Sitter space emerges naturally in this approach.

Erlich, Joshua [Department of Physics, College of William and Mary, Williamsburg, Virginia 23187 (United States); Kribs, Graham D. [Department of Physics and Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403 (United States); Low, Ian [School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540 (United States)

2006-05-01

266

Emerging nondestructive inspection methods for aging aircraft  

Microsoft Academic Search

This report identifies and describes emerging nondestructive inspection (NDI) methods that can potentially be used to inspect commercial transport and commuter aircraft for structural damage. The nine categories of emerging NDI techniques are: acoustic emission, x-ray computed tomography, backscatter radiation, reverse geometry x-ray, advanced electromagnetics, including magnetooptic imaging and advanced eddy current techniques, coherent optics, advanced ultrasonics, advanced visual, and

A. Beattie; L. Dahlke; J. Gieske

1994-01-01

267

Web Searching: Innovations, Challenges, and Future Directions.  

ERIC Educational Resources Information Center

Presents an outline for a planned technical session discussing innovations in the Web, the current state of Web searching, challenges, and future directions. Highlights include search engines; an empirical comparison of Web site overview techniques; Federal statistics web sites; and an evaluation of Web search engines from the end-user's…

Su, Louise T.

2000-01-01

268

Search Engines that Learn from Implicit Feedback  

Microsoft Academic Search

Search-engine logs provide a wealth of information that machine-learning techniques can harness to improve search quality. With proper interpretations that avoid inherent biases, a search engine can use training data extracted from the logs to automatically tailor ranking functions to a particular user group or collection.

Thorsten Joachims; Filip Radlinski

2007-01-01

269

Library Searching: An Industrial User's Viewpoint.  

ERIC Educational Resources Information Center

Discusses library searching of chemical literature from an industrial user's viewpoint, focusing on differences between academic and industrial researcher's searching techniques of the same problem area. Indicates that industry users need more exposure to patents, work with abstracting services and continued improvement in computer searching

Hendrickson, W. A.

1982-01-01

270

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

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)

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

271

Agent-based resource discovery architecture for environmental emergency management  

Microsoft Academic Search

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

Kevin F. R. Liu

2004-01-01

272

Platinum ratio search versus golden ratio search  

Microsoft Academic Search

In this simulation study, we examine the traditional golden ratio search in view of cost minimization and search risk, and propose an alternative search plan with what we call “platinum ratio”. The golden ratio search has been thought the best for unimodal optimization. However, our study shows that the golden ratio search is the best only in the sense of

Xia Pan

2008-01-01

273

Levetiracetam extended release and levetiracetam immediate release as adjunctive treatment for partial-onset seizures: an indirect comparison of treatment-emergent adverse events using meta-analytic techniques.  

PubMed

The safety profiles of once-daily adjunctive levetiracetam (LEV) extended release (XR) (1000mg/day) and adjunctive LEV immediate release (IR) (500mg twice daily) were compared using data from three randomized, placebo (PBO)-controlled phase III clinical trials in patients with partial-onset seizures. MedDRA 9.0 treatment-emergent adverse events (TEAEs) were indirectly compared using meta-analytic techniques, including calculation of risk difference (RD) and mixed-effects analysis. Statistical significance was set at 10% alpha risk, the normative value for these analyses. Data from 555 patients older than 16 (204 LEV IR, 70 LEV XR, 281 PBO) were analyzed. Following adjustment for incidence of placebo TEAEs, LEV XR showed statistically significantly lower rates of TEAEs than LEV IR across nervous system disorders (RD=-18%, P=0.03), psychiatric disorders (RD=-11%, P=0.08), and metabolism and nutrition disorders (RD=-3%, P=0.08). Among nervous system disorders, the RD for headache favored LEV XR (RD=-11%, P=0.08). These results suggest that adjunctive LEV XR may be associated with a lower incidence of nervous system, psychiatric, and nutritional and metabolic TEAEs as compared with LEV IR. However, this difference was observed at a broad scale and not at a specific TEAE level except for headache. PMID:19699156

Richy, Florent F; Banerjee, Soutrik; Brabant, Yves; Helmers, Sandra

2009-10-01

274

Image Semantic Search Engine  

Microsoft Academic Search

As the search technology rapidly developed, nowadays, main search engines are already able to meet users basic search desire. However, current search algorithms or methodologies mostly depend on keywords matching process, which could be effective for text search while not efficient for keywords-lacking or non-text search scenarios. This paper summarizes the solution adopted by current search engine vendors, and introduces

Lv Chaoqing; Takashi Kobayashi; Kiyoshi Agusa; Kun Wu; Qing Zhu

2009-01-01

275

Emerging technologies  

SciTech Connect

The mission of the Emerging Technologies thrust area at Lawrence Livermore National Laboratory is to help individuals establish technology areas that have national and commercial impact, and are outside the scope of the existing thrust areas. We continue to encourage innovative ideas that bring quality results to existing programs. We also take as our mission the encouragement of investment in new technology areas that are important to the economic competitiveness of this nation. In fiscal year 1992, we have focused on nine projects, summarized in this report: (1) Tire, Accident, Handling, and Roadway Safety; (2) EXTRANSYT: An Expert System for Advanced Traffic Management; (3) Odin: A High-Power, Underwater, Acoustic Transmitter for Surveillance Applications; (4) Passive Seismic Reservoir Monitoring: Signal Processing Innovations; (5) Paste Extrudable Explosive Aft Charge for Multi-Stage Munitions; (6) A Continuum Model for Reinforced Concrete at High Pressures and Strain Rates: Interim Report; (7) Benchmarking of the Criticality Evaluation Code COG; (8) Fast Algorithm for Large-Scale Consensus DNA Sequence Assembly; and (9) Using Electrical Heating to Enhance the Extraction of Volatile Organic Compounds from Soil.

Lu, Shin-yee

1993-03-01

276

Developing a Systematic Patent Search Training Program  

ERIC Educational Resources Information Center

This study aims to develop a systematic patent training program using patent analysis and citation analysis techniques applied to patents held by the University of Saskatchewan. The results indicate that the target audience will be researchers in life sciences, and aggregated patent database searching and advanced search techniques should be…

Zhang, Li

2009-01-01

277

Vascular access through the intraosseous route in pediatric emergencies  

PubMed Central

Obtaining venous access in critically ill children is an essential procedure to restore blood volume and administer drugs during pediatric emergencies. The first option for vascular access is through a peripheral vein puncture. If this route cannot be used or if a prolonged period of access is necessary, then the intraosseous route is an effective option for rapid and safe venous access. The present work is a descriptive and exploratory literature review. The study's aim was to describe the techniques, professional responsibilities, and care related to obtaining venous access via the intraosseous route in pediatric emergencies. We selected 22 articles (published between 2000 and 2011) that were available in the Latin American and Caribbean Health Sciences (LILACS) and MEDLINE databases and the SciELO electronic library, in addition to the current protocol of cardiopulmonary resuscitation from the American Heart Association (2010). After the literature search, data were pooled and grouped into the following categories of analysis: historical aspects and physiological principles; indications, benefits, and contraindications; professional assignments; technical principles; care during the access; and possible complications. The results of the present study revealed that the intraosseous route is considered the main secondary option for vascular access during the emergency response because the technique is quick and easily executed, presents several non-collapsible puncture sites, and enables the rapid and effective administration of drugs and fluid replacement.

de Sa, Ricardo Americo Ribeiro; Melo, Clayton Lima; Dantas, Raquel Batista; Delfim, Luciana Valverde Vieira

2012-01-01

278

U.S. VERSUS EUROPEAN WEB SEARCHING TRENDS  

Microsoft Academic Search

As the Web is becoming a worldwide phenomenon we need to understand what searching trends are emerging across different global regions. Are there regional differences in Web searching? What are the differences between searching by the United States population compared to Europeans? As part of a body of research studying these questions, we have analyzed two data sets culled from

Amanda Spink; Seda Ozmutlu; Huseyin Cenk Ozmutlu; Bernard J. Jansen

2002-01-01

279

Hierarchical random walks in trace fossils and the origin of optimal search behavior.  

PubMed

Efficient searching is crucial for timely location of food and other resources. Recent studies show that diverse living animals use a theoretically optimal scale-free random search for sparse resources known as a Lévy walk, but little is known of the origins and evolution of foraging behavior and the search strategies of extinct organisms. Here, using simulations of self-avoiding trace fossil trails, we show that randomly introduced strophotaxis (U-turns)-initiated by obstructions such as self-trail avoidance or innate cueing-leads to random looping patterns with clustering across increasing scales that is consistent with the presence of Lévy walks. This predicts that optimal Lévy searches may emerge from simple behaviors observed in fossil trails. We then analyzed fossilized trails of benthic marine organisms by using a novel path analysis technique and find the first evidence, to our knowledge, of Lévy-like search strategies in extinct animals. Our results show that simple search behaviors of extinct animals in heterogeneous environments give rise to hierarchically nested Brownian walk clusters that converge to optimal Lévy patterns. Primary productivity collapse and large-scale food scarcity characterizing mass extinctions evident in the fossil record may have triggered adaptation of optimal Lévy-like searches. The findings suggest that Lévy-like behavior has been used by foragers since at least the Eocene but may have a more ancient origin, which might explain recent widespread observations of such patterns among modern taxa. PMID:25024221

Sims, David W; Reynolds, Andrew M; Humphries, Nicolas E; Southall, Emily J; Wearmouth, Victoria J; Metcalfe, Brett; Twitchett, Richard J

2014-07-29

280

Meta Search Engines.  

ERIC Educational Resources Information Center

Describes common options and features to consider in evaluating which meta search engine will best meet a searcher's needs. Discusses number and names of engines searched; other sources and specialty engines; search queries; other search options; and results options. (AEF)

Garman, Nancy

1999-01-01

281

Surgical Simulation: An Emerging Technology for Training in Emergency Medicine  

Microsoft Academic Search

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

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

1997-01-01

282

Automatic searching and evaluation of priority and emerging contaminants in wastewater and river water by stir bar sorptive extraction followed by comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry.  

PubMed

A new analytical method based on stir bar sorptive extraction (SBSE), followed by comprehensive two-dimensional gas chromatography (GCxGC-TOF-MS), has been developed for the automatic searching and evaluation of nonpolar or semipolar contaminants in wastewater and river water. The target compounds selected were 13 personal care products (PCPs), 15 polycyclic aromatic hydrocarbons (PAHs) and 27 pesticides. Excellent results have been obtained in terms of separation efficiency and also in terms of compound identification. Exceptional method detection limits were achieved applying the optimized method, at or below 1 ng/L for most of the compounds in real samples. The reliable confirmation of analyte identity was possible at this low concentration level, even for typically troublesome compounds such as the PAHs. The other validation parameters were good. In addition to obtaining analytical information such as identification and quantification of target analytes, it is also possible to screen for nontarget compounds or unknowns. New contaminants have been identified in the wastewater effluents and river water samples, such as cholesterol and its degradation products, pharmaceuticals, industrial products, other pesticides, and PCPs. The multidimensional information generated by the instrument can also be used by the researchers for contrasting samples and identifying, much more easily, the major differences between samples. We have used this feature to propose studies of comparison between the fingerprinting of different water samples, such as the contamination variation along a river affected by the discharge of urban wastewaters and also the contamination variation over a period of time in the effluent. Results show that the most frequently detected contaminants (and the contaminants detected at higher concentrations) were the PCPs. The musk fragrances galaxolide and tonalid were the most concentrated compounds in the samples. The pesticides and PAHs were present at much lower concentration than PCPs. PMID:21388147

Gómez, María José; Herrera, Sonia; Solé, David; García-Calvo, Eloy; Fernández-Alba, Amadeo R

2011-04-01

283

Web Search Engines: Search Syntax and Features.  

ERIC Educational Resources Information Center

Presents a chart that explains the search syntax, features, and commands used by the 12 most widely used general Web search engines. Discusses Web standardization, expanded types of content searched, size of databases, and search engines that include both simple and advanced versions. (LRW)

Ojala, Marydee

2002-01-01

284

Emerging and re-emerging infections.  

PubMed

Emerging infectious diseases are diseases of infectious origin whose incidence in humans has increased within the past decades or threatens to increase in the near future. The reappearance of a previously known infection after a period of disappearance or decline in incidence is known as re-emergence. Many factors are known to contribute to the emergence or re-emergence of a disease. For example, research indicates that newly emergent infections may result from changes in or the evolution of existing organisms, the spread of known diseases to new geographic areas or human populations, or the appearance of previously unrecognized infections in persons living or working in areas undergoing ecologic changes which increases individual exposure to insects, animals, and environmental sources which may harbor new or unusual infectious agents. An infectious disease may re-emerge due to a range of reasons, including the development of antimicrobial resistance and/or insecticide resistance among vectors, and the collapse of public health systems. Pathology and emerging infections, examples of emerging and re-emerging infections, the contributions of pathology to emerging infections, autopsy and emerging infections, global microbial threats, emerging and re-emerging infections in India, tuberculosis, nosocomial infections, the current status of infectious disease pathology, and combatting infectious disease threats are discussed. PMID:9444876

Ranga, S; Trivedi, N; Khurana, S K; Thergaonkar, A; Talib, V H

1997-10-01

285

Challenges for Federated Searching  

Microsoft Academic Search

This article looks at the current capabilities of federated search software applications which search multiple full text e-journal databases. It also considers the developing capability to search journal content over the World Wide Web. Advances in federated searching are considered, such as standardized XML based searching, subject subdivided searching, linking services and Web indexing of formerly proprietary content. Despite these

Peter M. Webster

2007-01-01

286

Emerging and Re-Emerging Infectious Diseases  

MedlinePLUS

... Emerging and Re-emerging Infectious Diseases Skip Content Marketing Share this: Main Content Area Research at NIAID Introduction and Goals Despite remarkable advances in medical research and treatments ...

287

Emergency Management Institute- Federal Emergency Management Agency  

NSDL National Science Digital Library

Emergency Management Institute (EMI) provides a nationwide training program of resident courses and non-resident courses to enhance U.S. emergency management practices. Lists the courses, programs, and activities offered.

2007-01-26

288

Leveraging Source Code Search for Reuse  

Microsoft Academic Search

The importance of search as a central support activity for information handling and software reuse has been highlighted by\\u000a several authors. Although it is one of the most dominant daily activities of developers, it is not a first order concern of\\u000a most development tools. Recently a number of specialized search engines for source code emerged that enable access to reusable

Hans-jörg Happel; Thomas Schuster; Peter Szulman

2008-01-01

289

Techniques for monitoring cranberry tipworm (Diptera: Cecidomyiidae) in rabbiteye and southern highbush blueberries.  

PubMed

Several monitoring techniques were evaluated for their effectiveness, based on the highest mean captures of cranberry tipworm, Dasineura oxycoccana (Johnson), in detecting D. oxycoccana in rabbiteye, Vaccinium ashei Reade, and southern highbush, V. corymbosum L. x V. darrowi Camp, blueberry plantings. There were no significant differences in captures of D. oxycoccana adults on unbaited sticky board traps, regardless of color (yellow, white, green, or blue). In a separate experiment, three monitoring techniques, yellow unbaited sticky boards, larval/adult emergence from infested buds, and bud dissection, were evaluated for detecting D. oxycoccana, eggs, larvae, and adults. In total, four bud types were examined, including rabbiteye floral, rabbiteye leaf, southern highbush floral, and southern highbush leaf. The emergence monitoring technique detected significantly more D. oxycoccana adults than the other techniques evaluated. Emergence and dissection techniques performed equally well for detecting D. oxycoccana larvae. Dissection was the only technique capable of detecting D. oxycoccana eggs. Overall, the highest numbers of D. oxycoccana eggs were detected in southern highbush leaf buds. However, larval infestation was lower for southern highbush leaf buds compared with other bud types sampled. Hypotheses to explain this phenomenon are discussed. The fewest number of eggs was recorded for southern highbush flower buds, potentially because these buds develop before peak emergence of D. oxycoccana. Managing D. oxycoccana in infested plantings can be improved by incorporating monitoring techniques, specifically bud dissection to search for eggs, that will aid growers in making timely insecticide applications. PMID:14977121

Sarzynski, Erin M; Liburd, Oscar E

2003-12-01

290

The Development of the Emergency Management Coordinator's Handbook.  

National Technical Information Service (NTIS)

The Emergency Management Coordinators' handbook was developed to provide guidance to county and local emergency management coordinators with respect to all aspects of job performance. The manual was developed using systems analysis techniques. The job of ...

D. F. Taylor W. F. Karl H. R. Emerich

1980-01-01

291

Greedy Randomized Adaptive Search Procedures  

Microsoft Academic Search

Today, a variety of heuristic approaches are available to the operations research practitioner. One methodology that has a strong intuitive appeal, a prominent empirical track record, and is trivial to efficiently implement on parallel processors is GRASP (Greedy Randomized Adaptive Search Procedures). GRASP is an iterative randomized sampling technique in which each iteration provides a solution to the problem at

Thomas A. Feo; Mauricio G. C. Resende

1995-01-01

292

Limited Discrepancy Beam Search  

Microsoft Academic Search

Beam search reduces the memory consumption of best- rst search at the cost of nding longer paths but its memory consumption can still exceed the given mem- ory capacity quickly. We therefore develop BULB (Beam search Using Limited discrepancy Backtracking), a com- plete memory-bounded search method that is able to solve more problem instances of large search problems than beam

David Furcy; Sven Koenig

2005-01-01

293

[Urgencies and emergencies drug ingestion].  

PubMed

The author studies the profile and general characteristics of patients who suffer whatever type of accidental or voluntary drug intoxication by someone who makes use of the Mollet Hospital Emergency Ward. The author verifies the need for distinct types of nursing care, including techniques, procedures and how to administer treatment, to patients who suffer from drug intoxication, either accidental or voluntary The author also tries to discover the work load for nursing personnel which this type of patient brings to bear on an emergency service by means of the "PRN" method. PMID:18496969

Pilar, José-María de la Casa

2008-02-01

294

Organising communities-of-practice: facilitating emergence  

Microsoft Academic Search

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 stimulate learning and professional development in specific fields. This paper aims to

Sanne Akkerman; Christian Petter; Maarten de Laat

2008-01-01

295

Neutron energy measurements in emergency response applications  

Microsoft Academic Search

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

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

2009-01-01

296

In Search of More Meaningful Search  

Microsoft Academic Search

The amount of online scholarly information is rapidly expanding and residing in increasingly disparate sources, while user behavior is evolving to demand single search interfaces like Google. Federated search enables librarians to meet these challenges by supplying efficient, effective access and delivery of the most relevant content from diverse sources to their patrons. Introducing the ability to simultaneously search multiple

Peg Marshall; Shawn Herman; Sri Rajan

2006-01-01

297

Emerging technologies: systems biology.  

PubMed

The field of systems biology is based on the paradigm that the whole is greater than the sum of the parts. Through a combination of high-throughput experiments analyzing "-omic" scale phenomenon and the development of new computational techniques and algorithms, it is now feasible to study biological systems in a way that was previously not possible. During the 232nd National Meeting of the American Chemical Society, a session devoted to the emerging technology of Systems Biology was held. A number of talks on a wide variety of subjects covering cell signaling, network regulation and analysis, novel experimental procedures, synthetic biology, and metabolic flux analysis were presented. All of these approaches shared the common theme of using a systems biology approach to aid in the understanding of fundamental biology, with an eye toward applications for the benefit of society. PMID:17269665

Srivastava, Ranjan; Varner, Jeffrey

2007-01-01

298

Combining simulated annealing with local search heuristics  

Microsoft Academic Search

We introduce a meta-heuristic to combine simulated annealing with local search methods for CO problems. This new class of\\u000a Markov chains leads to significantly more powerful optimization methods than either simulated annealing or local search. The\\u000a main idea is to embed deterministic local search techniques into simulated annealing so that the chain explores only local\\u000a optima. It makes large, global

Olivier C. Martin; Steve W. Otto

1996-01-01

299

Inquirus, the NECI Meta Search Engine  

Microsoft Academic Search

World Wide Web (WWW) search engines (e.g. AltaVista, Infoseek, HotBot, etc.) have a number of deficiencies including: periods of downtime, low coverage of the WWW, inconsistent and inefficient user interfaces, out of date databases, poor relevancy ranking and precision, and difficulties with spamming techniques. Meta search engines have been introduced which address some of these and other difficulties in searching

Steve Lawrence; C. Lee Giles

1998-01-01

300

A search engine for 3D models  

Microsoft Academic Search

As the number of 3D models available on the Web grows, there is an increasing need for a search engine to help people find them. Unfortunately, traditional text-based search techniques are not always effective for 3D data. In this article, we investigate new shape-based search methods. The key challenges are to develop query methods simple enough for novice users and

Thomas A. Funkhouser; Patrick Min; Michael M. Kazhdan; Joyce Chen; Alex Halderman; David P. Dobkin; David Pokrass Jacobs

2003-01-01

301

A Search Engine for 3D Models  

Microsoft Academic Search

As the number of 3D models available on the Web grows, there is an increasing need for a search engine to help people find them. Unfortunately, traditional text-based search techniques are not always effective for 3D data. In this paper, we investigate new shape-based search methods. The key challenges are to develop query methods simple enough for novice users and

Thomas Funkhouser; Patrick Min; Misha Kazhdan; Joyce Chen; Alex Halderman; David Dobkin; David Jacobs

2002-01-01

302

Versatile Search of Scanned Arabic Handwriting  

Microsoft Academic Search

Searching handwritten documents is a relatively unexplored frontier for documents in any language. Traditional approaches\\u000a use either image-based or text-based techniques. This paper describes a framework for versatile search where the query can\\u000a be either text or image, and the retrieval method fuses text and image retrieval methods. A UNICODE and an image query are\\u000a maintained throughout the search, with

Sargur N. Srihari; Gregory R. Ball; Harish Srinivasan

303

Optimal Searches for Asteroids.  

National Technical Information Service (NTIS)

Optimal searches for a fixed object are discussed and the rigorous analytical results of discrete search theory are presented. They show that the totally optimal, the uniformly optimal, locally optimal, and the fastest searches are identical under not too...

L. G. Taff

1984-01-01

304

'Net Search Strategies.  

ERIC Educational Resources Information Center

Provides strategies for effective Internet searches. Categorizes queries into four types and describes tools: subject lists; indexes/directories; keyword search engines; Usenet newsgroups; and special purpose search tools. Discusses the importance of deciphering information and adjusting to changes. (AEF)

Bell, Suzanne S.

1997-01-01

305

Searching for Birth Relatives  

MedlinePLUS

... Connected Home » Searching for Birth Relatives Searching for Birth Relatives Email Order (Free) Print (PDF 445 KB) Share Rate This ... Citation: Child Welfare Information Gateway. (2011). Searching for birth relatives. Washington, DC: U.S. ... Share A service ...

306

Verification of NASA Emergent Systems  

NASA Technical Reports Server (NTRS)

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.

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

2004-01-01

307

Function Optimization using Guided Local Search  

Microsoft Academic Search

In this report, we examine the potential use of Guided Local Search (GLS) for function optimization. In order to apply GLS, the function to be minimized is augmented with a set of penalty terms that enable local search to escape from local minima. The function F6 is used to demonstrate the proposed technique.

Chris Voudouris; Edward Tsang

1995-01-01

308

Information Systems Coordinate Emergency Management  

NASA Technical Reports Server (NTRS)

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.

2012-01-01

309

Methods for Parallelizing Search Paths in Phrasing.  

National Technical Information Service (NTIS)

Many search problems are commonly solved with combinatoric algorithms that unnecessarily duplicate and serialize work at considerable computational expense. There are techniques available that can eliminate redundant computations and perform remaining ope...

C. De Marcken

1993-01-01

310

Astrophysical input for gravitational wave searches  

Microsoft Academic Search

We describe several areas where the newly emerging field of gravitational wave astronomy would benefit from exploiting the\\u000a expertise of the broader astrophysics community. We deal specifically with searches for long-lived gravitational wave signals\\u000a from neutron stars, paying particular attention to the known radio pulsar population and supernova remnants.

D. I. Jones

2007-01-01

311

Astrophysical input for gravitational wave searches  

Microsoft Academic Search

\\u000a We describe several areas where the newly emerging field of gravitational wave astronomy would benefit from exploiting the\\u000a expertise of the broader astrophysics community. We deal specifically with searches for long-lived gravitational wave signals\\u000a from neutron stars, paying particular attention to the known radio pulsar population and supernova remnants.

D. I. Jones

312

Towards Federated Search Based on Web Services  

Microsoft Academic Search

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

Jens Graupmann; Michael Biwer; Patrick Zimmer

2003-01-01

313

Examining Web Search Trends Across Arab Countries  

Microsoft Academic Search

The Web has become a major worldwide source of information and services. It has emerged as a worldwide phenomenon; almost every one in this world uses the Web in order to fulfill a specific need such as finding information, buying or selling etc. In this research, we have tried to investigate and understand the searching trends in the Arab countries

Mohammed Al-Kabi; Abdullah Wahbeh; Anas Alsobeh; Ahmad Aleroud; Izzat Alsmadi

2012-01-01

314

Emerging and re-emerging infectious diseases  

Microsoft Academic Search

In human history, numerous infectious diseases have emerged and re-emerged. Aside from many others, the so-called 'exotic' agents in particular are a threat to our public health systems due to limited experience in case management and lack of appropriate resources. Many of these agents are zoonotic in origin and transmitted from animals to man either directly or via vectors. The

Heinz Feldmann; Markus Czub; Steven Jones; Daryl Dick; Michael Garbutt; Allen Grolla; Harvey Artsob

2002-01-01

315

Emerging and Re-emerging Infectious Diseases  

Microsoft Academic Search

\\u000a Emerging infectious diseases (EIDs) are characterized by a new or an increased occurrence within the last few decades. They\\u000a include the following categories Emerging diagnosis of infectious diseases: old diseases that are newly classified as infectious\\u000a diseases because of the discovery of a responsible infectious agent.

Thomas Löscher; Luise Prüfer-Krämer

316

Emergent Patterns of Mate Choice in Human Populations  

Microsoft Academic Search

Abstract: We present a model of human mate choice that shows how realisticpopulation-level patterns of assortative mating can self-organizeand emerge from the behavior of individuals using simple mate searchrules. In particular, we model plausible psychological mechanisms formate search and choice in a realistic social ecology. Through individualinteractions, patterns emerge that match those observed in typical humansocieties, particularly in terms of

Jorge Simão; Peter M. Todd

2003-01-01

317

Future Space Missions to Search for Terrestrial Planets  

NASA Astrophysics Data System (ADS)

Since the first exoplanet was discovered more than 10 years ago, this field has developed rapidly. Currently we know of more than 200 external systems of stars and planets, apart from our own, but what has become the `holy grail' of exoplanetary research is still eluding us. Here we are, of course, referring to solar systems like our own, containing a number of terrestrial or `rocky' planets orbiting within the so-called `habitable zone', and with giant planets such as Jupiter and Saturn—which mostly or totally consist of elements as H or He—at distance much further out from the central star. No such system have to date been discovered around anything resembling our Sun, albeit because of observational biases. Nevertheless, in order to develop the emerging science discipline of Comparative Planetology, we will have to utilize new techniques that will enable us to search for, and then study in detail such systems in an un-biased fashion. This paper describes the emerging techniques and space missions that will allow, finally, the investigation of planets capable of hosting life as we know it.

Fridlund, Malcolm

318

Future Space Missions to Search for Terrestrial Planets  

NASA Astrophysics Data System (ADS)

Since the first exoplanet was discovered more than 10 years ago, this field has developed rapidly. Currently we know of more than 200 external systems of stars and planets, apart from our own, but what has become the ‘holy grail’ of exoplanetary research is still eluding us. Here we are, of course, referring to solar systems like our own, containing a number of terrestrial or ‘rocky’ planets orbiting within the so-called ‘habitable zone’, and with giant planets such as Jupiter and Saturn—which mostly or totally consist of elements as H or He—at distance much further out from the central star. No such system have to date been discovered around anything resembling our Sun, albeit because of observational biases. Nevertheless, in order to develop the emerging science discipline of Comparative Planetology, we will have to utilize new techniques that will enable us to search for, and then study in detail such systems in an un-biased fashion. This paper describes the emerging techniques and space missions that will allow, finally, the investigation of planets capable of hosting life as we know it.

Fridlund, Malcolm

2008-03-01

319

Searching for nonsolar planets  

NASA Technical Reports Server (NTRS)

The use of infrared techniques to search for nonsolar planets is examined and compared with other possible methods. Long focus astrometry, spectroscopic radial velocity measurements and spaceborne apodization all use visible light and need further refinement to be practical. Infrared offers an advantage of about 10 to the 5th over visible light as regards the ratio of power received from star and planet. Long baseline infrared interferometry from earth orbit could place an interferometric null on the star to enhance planetary radiation and a spinning interferometer would modulate planetary emission to permit synchronous detection; such an interferometer is illustrated. The limit to sensitivity would be set by thermal radiation to the detector and the infrared component of zodiacal light.

Bracewell, R. N.; Macphie, R. H.

1979-01-01

320

Emergent situations in interactive storytelling  

Microsoft Academic Search

Interactive storytelling can either be based on explicit plot representations or on the autonomous behaviour of artificial characters. In such a character-based approach, the dynamic interaction between characters generates the actual plot from a generic storyline. Characters' behaviours are implemented through real-time search-based planning techniques. However, the top-down planning systems that control artificial actors need to be complemented with appropriate

Marc Cavazza; Fred Charles; Steven J. Mead

2002-01-01

321

NCI Visuals Online: Search  

Cancer.gov

Skip Navigation NCI Visuals Online Home About My Pictures Browse Search Quick Search Search Search for: Date Created: Any 1900 1920 1940 1960 1980 1990 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 to Any 1900 1920 1940 1960 1980 1990 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Sort

322

FAST Search (Fast Search and Transfer)  

NSDL National Science Digital Library

Claiming to be the world's biggest search engine, this new Web tool is the product of a joint venture between Dell Computer and FAST, a Norwegian company that has announced its intention to catalog the entire Internet. At 80 million searchable documents, FAST Search is not actually the world's most comprehensive engine (with over 150 million documents indexed, Northern Light holds that title), but it may be if it reaches its goal of 200 million by the end of summer 1999. Whether it becomes the largest or not, it is probably the Web's fastest search engine. Test searches returned tens of thousands of hits in under a second. Most returns were fairly relevant, especially when an exact phrase search was executed. Return pages also include a link to the same search at Lycos FTPsearch, which indexes over 100 million FTP files.

323

Emergency Management of Myasthenia Gravis  

MedlinePLUS

Emergency Management www.myasthenia.org www.myasthenia.org 800.541.5454 Important information for the patient, family, emergency medical technician, nurse, and emergency department personnel. EMERGENCY MANAGEMENT OF MG EMERGENCY MANAGEMENT OF MG Myasthenia gravis ( ...

324

Hough transform search for continuous gravitational waves  

SciTech Connect

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.

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

325

CMedPort: Intelligent Searching for Chinese Medical Information  

Microsoft Academic Search

\\u000a Most information retrieval techniques have been developed for English and other Western languages. As the second largest Internet\\u000a language, Chinese provides a good setting for study of how search engine techniques developed for English could be generalized\\u000a for use in other languages to facilitate Internet searching and browsing in a multilingual world. This paper reviews different\\u000a techniques used in search

Yilu Zhou; Jialun Qin; Hsinchun Chen

2003-01-01

326

SearcheBooks.com  

NSDL National Science Digital Library

MaxBot.com, creator of SearchEdu, SearchGov, and SearchMil (see the January 28, 2000 Scout Report), also offers SearcheBooks, a search engine that indexes the full text of "thousands" of online books. Like its siblings, SearcheBooks offers a simple keyword search interface and caches the versions of pages that its robots find. Unlike them, however, SearcheBooks returns two URLs for each hit, one for the provider's page, and one for the full text of the book. While the search engine can be used to find particular references within the books indexed, it is probably best used to search for the books themselves, for personal or pedagogical use, via author, title, or subject.

327

Orwell's 1984: Natural Language Searching and the Contemporary Metaphor.  

ERIC Educational Resources Information Center

Describes a natural language searching strategy for retrieving current material which has bearing on George Orwell's "1984," and identifies four main themes (technology, authoritarianism, press and psychological/linguistic implications of surveillance, political oppression) which have emerged from cross-database searches of the "Big Brother"…

Dadlez, Eva M.

1984-01-01

328

Googling Forensics - an analysis of the Google Desktop Search  

Microsoft Academic Search

This paper discusses the emerging trend of Personal Desktop Searching utilities on desktop PCs, and how the information cached and stored with these systems can be retrieved and analysed, even after the original document has been removed. Focusing on the free Google Desktop Search program, this paper first analyses how the program operates, the processes involved, files created and altered,

Benjamin Turnbull; Jill Slay

329

Emergency preparedness and planning  

NASA Technical Reports Server (NTRS)

Monsanto's emergency response plan in dealing with hazardous materials at their facilities is presented. Topics discussed include the following: CPR training; emergency medial training; incident reports; contractor injuries; hazardous materials transport; evacuation; and other industrial safety concerns.

Bouvier, Kenneth

1993-01-01

330

Dog Bite Emergencies  

MedlinePLUS

... Emergency Care Animal Welfare Veterinary Careers Public Health Dog bite emergencies What do I do if I’ ... vaccination records. What do I do if my dog bites someone? Dog bites are scary for everyone ...

331

Patient Emergency Grants  

MedlinePLUS

... family and friends to get connected! Patient Emergency Grants The Kidney & Urology Foundation of America, now in ... Kidney & Urology Foundation of America’s (KUFA) PATIENT EMERGENCY GRANT PROGRAM (PEG) provides financial assistance to End Stage ...

332

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

PubMed

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

Heiskell, L E; Carmona, R H

1994-04-01

333

Emerging and Re-emerging Infectious Diseases  

Microsoft Academic Search

Microbial pathogens discovered as aetiological agents of human disease over the last 25 years are reviewed. Strengthening of laboratory and public health surveillance is of paramount importance for early detection and management of emerging infectious diseases.

U. Desselberger

2000-01-01

334

Efficient protein structure search using indexing methods  

PubMed Central

Understanding functions of proteins is one of the most important challenges in many studies of biological processes. The function of a protein can be predicted by analyzing the functions of structurally similar proteins, thus finding structurally similar proteins accurately and efficiently from a large set of proteins is crucial. A protein structure can be represented as a vector by 3D-Zernike Descriptor (3DZD) which compactly represents the surface shape of the protein tertiary structure. This simplified representation accelerates the searching process. However, computing the similarity of two protein structures is still computationally expensive, thus it is hard to efficiently process many simultaneous requests of structurally similar protein search. This paper proposes indexing techniques which substantially reduce the search time to find structurally similar proteins. In particular, we first exploit two indexing techniques, i.e., iDistance and iKernel, on the 3DZDs. After that, we extend the techniques to further improve the search speed for protein structures. The extended indexing techniques build and utilize an reduced index constructed from the first few attributes of 3DZDs of protein structures. To retrieve top-k similar structures, top-10 × k similar structures are first found using the reduced index, and top-k structures are selected among them. We also modify the indexing techniques to support ?-based nearest neighbor search, which returns data points less than ? to the query point. The results show that both iDistance and iKernel significantly enhance the searching speed. In top-k nearest neighbor search, the searching time is reduced 69.6%, 77%, 77.4% and 87.9%, respectively using iDistance, iKernel, the extended iDistance, and the extended iKernel. In ?-based nearest neighbor serach, the searching time is reduced 80%, 81%, 95.6% and 95.6% using iDistance, iKernel, the extended iDistance, and the extended iKernel, respectively.

2013-01-01

335

Dynamic space reconfiguration for Bayesian search and tracking with moving targets  

Microsoft Academic Search

This paper presents a technique for dynamically reconfiguring search spaces in order to enable Bayesian au- tonomous search and tracking missions with moving targets. In particular, marine search and rescue scenarios are con- sidered, highlighting the need for space reconfiguration in situations where moving targets are involved. The proposed technique improves the search space configuration by main- taining the validity

Benjamin Lavis; Tomonari Furukawa; Hugh F. Durrant-whyte

2008-01-01

336

Emergency Management Guide  

SciTech Connect

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).

Not Available

1994-09-01

337

Ontology Learning for Search Applications  

Microsoft Academic Search

Ontology learning tools help us build ontologies cheaper by applying sophisticated linguistic and statistical techniques on\\u000a domain text. For ontologies used in search applications class concepts and hierarchical relationships at the appropriate level\\u000a of detail are vital to the quality of retrieval. In this paper, we discuss an unsupervised keyphrase extraction system for\\u000a ontology learning and evaluate its resulting ontology

Jon Atle Gulla; Hans Olaf Borch; Jon Espen Ingvaldsen

2007-01-01

338

Exoplanet Search Via Gravitational Microlensing  

Microsoft Academic Search

We review the recent results of the exoplanet search via gravitational microlensing. The microlensing technique is unique and complementary to other methods because it does not rely on the light from the primary. Microlensing is sensitive to small-size planets down to those of Earth mass around dim M-dwarfs. Planets with large semi-major axes more distant than the snow line can

Takahiro Sumi

2009-01-01

339

Solution-Guided MultiPoint Constructive Search for Job Shop Scheduling  

Microsoft Academic Search

Solution-Guided Multi-Point Constructive Search (SGMPCS) is a novel constructive search technique that performs a series of resource-limited tree searches where each search begins either from an empty solution (as in randomized restart) or from a solution that has been encountered during the search. A small number of these \\\\elite\\

J. Christopher Beck

2007-01-01

340

Color on emergency mapping  

NASA Astrophysics Data System (ADS)

There are so many emergency issues in our daily life. Such as typhoons, tsunamis, earthquake, fires, floods, epidemics, etc. These emergencies made people lose their lives and their belongings. Every day, every hour, even every minute people probably face the emergency, so how to handle it and how to decrease its hurt are the matters people care most. If we can map it exactly before or after the emergencies; it will be helpful to the emergency researchers and people who live in the emergency place. So , through the emergency map, before emergency is occurring we can predict the situation, such as when and where the emergency will be happen; where people can refuge, etc. After disaster, we can also easily assess the lost, discuss the cause and make the lost less. The primary effect of mapping is offering information to the people who care about the emergency and the researcher who want to study it. Mapping allows the viewers to get a spatial sense of hazard. It can also provide the clues to study the relationship of the phenomenon in emergency. Color, as the basic element of the map, it can simplify and clarify the phenomenon. Color can also affects the general perceptibility of the map, and elicits subjective reactions to the map. It is to say, structure, readability, and the reader's psychological reactions can be affected by the use of color.

Jiang, Lili; Qi, Qingwen; Zhang, An

2007-07-01

341

Pentaquark Searches at BABAR  

SciTech Connect

A review of the pentaquark searches in data collected with the BABAR detetcor at the SLAC PEP-II asymmetric B factory is presented. There are inclusive searches for {theta}5(1540)+, {xi}5(1860)--, {xi}5(1860)0 and some other strange pentaquark states, a search for {theta}5(1540)+ in interactions of beam halo and hadrons with the inner-most detector material, inclusive and exclusive searches for the anti-charmed peentaquark {theta}{sub c}{sup 0} claimed by H1 collaboration, and a search for the {theta}*++ state. All of these searches have yielded negative results.

Chen Xin [Physics Department, University of Wisconsin-Madison, Madison, WI 53706 (United States)

2006-07-11

342

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...

343

Applying Elementary Landscape Analysis to Search-Based Software Engineering  

Microsoft Academic Search

Recent research in search-based software engineering (SBSE) has demonstrated that a number of software engineering problems can be reformulated as a search problem, hence search algorithms can be applied to tackle it. However, most of the existing work has been of empirical nature and the techniques are predominately experimental. Therefore in-depth studies into characteritics of SE problems and appropriate algorithms

Guanzhou Lu; Rami Bahsoon; Xin Yao

2010-01-01

344

Reducing Storage Costs for Federated Search of Text Databases  

Microsoft Academic Search

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

Jie Lu; Jamie Callan

2003-01-01

345

Search Graph Formation for Minimizing the Complexity of Planning  

Microsoft Academic Search

A large number of path planning problems are solved by the use of graph based search algorithms. There are a variety of techniques available to optimize the search within these graphs as well as thorough studies of the complexity involved in searching through them. However, little eort has been dedicated to construct- ing the graphs so that the results of

Alberto Lacaze; Stephen Balakirsky

346

End-User Full-Text Searching: Access or Excess?  

ERIC Educational Resources Information Center

Describes a study conducted at Baruch College of the City University of New York that assessed the search techniques of trained endusers and determined whether or not they were searching the full-text system effectively. Correlations between native language and searching results and satisfaction are shown, and implications for training are…

DiMartino, Diane; Zoe, Lucinda R.

1996-01-01

347

Agglomerative clustering of a search engine query log  

Microsoft Academic Search

This paper introduces a technique for mining a collection ofuser transactions with an Internet search engine to discoverclusters of similar queries and similar URLs. The informationwe exploit is "clickthrough data": each record consistsof a user's query to a search engine along with the URLwhich the user selected from among the candidates offeredby the search engine. By viewing this dataset as

Doug Beeferman; Adam L. Berger

2000-01-01

348

Bedside ocular ultrasound in the emergency department.  

PubMed

The use of point-of-care ultrasound in the emergency department has expanded considerably in recent years, allowing enhanced evaluation of the patient with an emergent eye or vision complaint. The technique is simple and quick to perform, and can yield clinical information that may not be readily obtainable through physical or slit-lamp exams. Ocular bedside sonography can aid in the diagnosis of retinal and vitreous hemorrhage, retinal and vitreous detachments, ocular infections, foreign bodies, retrobulbar hematoma, or ocular vascular pathology. Optic nerve sheath diameter can be measured in patients with a suspected intracranial process as a surrogate for intracranial pressure, and may aid emergency diagnosis and management. This article reviews common emergency ophthalmic pathologies diagnosed with ultrasound in the emergency setting and a mnemonic for the use of bedside ocular ultrasound is proposed to aid in thoroughly scanning the eye and its surrounding structures. PMID:24002686

Kilker, Bret A; Holst, John M; Hoffmann, Beatrice

2014-08-01

349

Search the PAQ Database  

Cancer.gov

Use this interface to search through all the physical activity-related questions in our database. See below for some tips on how to search. If you have any comments concerning this database, please e-mail David Berrigan.

350

Parallel text search methods  

Microsoft Academic Search

A comparison of recently proposed parallel text search methods to alternative available search strategies that use serial processing machines suggests parallel methods do not provide large-scale gains in either retrieval effectiveness or efficiency.

Gerard Salton; Chris Buckley

1988-01-01

351

Emergent Topological Phenomena in Thin Films of Pyrochlore Iridates  

NASA Astrophysics Data System (ADS)

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.

Yang, Bohm-Jung; Nagaosa, Naoto

2014-06-01

352

[Emergency medicine today].  

PubMed

Anaesthesiology has given essential impulses to emergency medicine during the last decades. Therefore emergency medicine has become the "third column" of this speciality. As a "generalist with special skills" the anaesthetist fulfils the requirements of an emergency physician to a high degree. The scientific field of emergency medicine is subjected to a considerable amount of changes and requires qualified training and further education; in this context the guidelines for cardiopulmonary resuscitation are of outstanding importance. In the governmental-controlled emergency care system, the emergency physician and the chief emergency physician are responsible for both the individual treatment of patients and the management of major incidents and catastrophes. Moreover, the interhospital transfer is gaining increasing importance. Even though a high quality standard of the German emergency medicine system can be stated, there are still clear deficits such as the lack of integrated dispatch centers and the lack of the position of a medical physician as emergency care leader in each area. A leading structure for the management of major incidents and disasters is established to a great extent, nevertheless personal and material deficits exist in this field especially considering a rising terroristic threat. In the in-hospital emergency medicine anaesthetists are of essential importance for the interdisciplinary teamwork in the resuscitation room, medical treatment of in-hospital emergencies on the wards and outside on the hospital ground, and for internal as well as external major incidents and disasters. This is not always recognized in public opinion, so that the interdisciplinary integration must be secured and reinforced. In conclusion: A major goal is to preserve emergency medicine as the third column of anaesthesiology and to protect achieved standards, to reinforce research in preclinical and clinical emergency medicine, and to take up new challenges in the future. PMID:12658571

Adams, H A; Maisch, S; Standl, Th

2003-04-01

353

USGS Search Engine  

NSDL National Science Digital Library

Users can search the large number of the U.S. Geological Survey's web pages with this engine. In addition to the search box (where a key word or title can be typed), the search is further refined by the incorporation of links to categories of topics. The topics consist of resource types such as Fact Sheets or Maps, subjects such as minerals or water quality, or an organizational search on USGS State offices or programs.

354

Large Neighborhood Search  

Microsoft Academic Search

\\u000a Heuristics based on large neighborhood search have recently shown outstanding results in solving various transportation and scheduling problems. Large neighborhood search\\u000a methods explore a complex neighborhood by use of heuristics. Using large neighborhoods makes it possible to find better candidate\\u000a solutions in each iteration and hence traverse a more promising search path. Starting from the large neighborhood search method,\\u000a we

David Pisinger; Stefan Ropke

355

Guided Local Search  

Microsoft Academic Search

\\u000a Combinatorial explosion is a well-known phenomenon that prevents complete algorithms from solving many real-life combinatorial\\u000a optimization problems. In many situations, heuristic search methods are needed. This chapter describes the principles of Guided\\u000a Local Search (GLS) and Fast Local Search (FLS) and surveys their applications. GLS is a penalty-based metaheuristic algorithm\\u000a that sits on top of other local search algorithms, with

Christos Voudouris; Edward P. K. Tsang; Abdullah Alsheddy

356

Searching with context  

Microsoft Academic Search

Contextual search refers to proactively capturing the infor- mation need of a user by automatically augmenting the user query with information extracted from the search context; for example, by using terms from the web page the user is currently browsing or a file the user is currently editing. We present three different algorithms to implement con- textual search for the

Reiner Kraft; Chi-chao Chang; Farzin Maghoul; Ravi Kumar

2006-01-01

357

EPA Publications Search  

NSDL National Science Digital Library

This new site, located off of the US Environmental Protection Agency (EPA) search page, simplifies finding EPA publications. Users can search by document number, title, or keyword. Search returns include a brief abstract, URL, and reference to document format (HTML or .pdf). The site also offers a Guide to EPA Publication Numbers and more information about EPA publications in general.

358

Distributed constrained heuristic search  

Microsoft Academic Search

A model of decentralized problem solving, called distributed constrained heuristic search (DCHS), that provides both structure and focus in individual agent search spaces to optimize decisions in the global space, is presented. The model achieves this by integrating decentralized constraint satisfaction and heuristic search. It is a formalism suitable for describing a large set of distributed artificial intelligence problems. The

K. Sycara; S. F. Roth; N. Sadeh; M. S. Fox

1991-01-01

359

Plugging Search Committee Leaks.  

ERIC Educational Resources Information Center

Suggestions are given for maintaining confidentiality in the presidential search process, addressing such issues as appointing the search committee, dealing with the press, communicating with the campus, employing a consultant, choosing an executive secretary, transacting search business, contacting candidates and references, conducting…

McLaughlin, Judith Block

1985-01-01

360

Search and Seizure.  

ERIC Educational Resources Information Center

This paper examines the practice of search and seizure from a legal perspective. All issues concerning lawful or unlawful search and seizure, whether in a public school or otherwise, are predicated upon the Fourth Amendment to the United States Constitution. The terms "search,""seizure,""probable cause,""reasonable suspicion," and "exclusionary…

Murray, Kenneth T.

361

Conducting a Web Search.  

ERIC Educational Resources Information Center

Keyword and text string searches of online library catalogs often provide different results according to library and database used and depending upon how books and journals are indexed. For this reason, online databases such as ERIC often provide tutorials and recommendations for searching their site, such as how to use Boolean search strategies.…

Miller-Whitehead, Marie

362

Search Applied Research Publications  

Cancer.gov

Use this page to search our bibliography of publications from the Applied Research Program and its initiatives. Consult the help page for detailed instructions and searching tips. If available, links to abstracts and to PubMed or other Web pages for these publications will be provided in the search results.

363

Search ICSN Publications  

Cancer.gov

Use this page to search our bibliography of International Cancer Screening Network publications. Consult the help page for detailed instructions and searching tips. If available, links to abstracts and to PubMed or other Web pages for these publications will be provided in the search results.

364

Web Search page  

NSDL National Science Digital Library

The Web Search page is another collection of all the major search engines and directories, but with graphic representations which may make it more fun to have in your bookmarks. A text version is also provided which includes even more search engines, resulting in a new feeling of being overwhelmed.

365

Bayesian CART Model Search  

Microsoft Academic Search

In this paper we put forward a Bayesian approach for nding CART (classication andregression tree) models. The two basic components of this approach consist of priorspecication and stochastic search. The basic idea is to have the prior induce a posteriordistribution which will guide the stochastic search towards more promising CARTmodels. As the search proceeds, such models can then be selected

Hugh A. CHIPMAN; Edward I. GEORGE; Robert E. MCCULLOCH

1997-01-01

366

Bayesian CART Model Search  

Microsoft Academic Search

In this article we put forward a Bayesian approach for finding classification and regression tree (CART) models. The two basic components of this approach consist of prior specification and stochastic search. The basic idea is to have the prior induce a posterior distribution that will guide the stochastic search toward more promising CART models. As the search proceeds, such models

Hugh A. Chipman; Edward I. George; Robert E. McCulloch

1998-01-01

367

The Information Search  

ERIC Educational Resources Information Center

This paper in the form of story discusses a college student's information search process. In this story we see Kuhlthau's information search process: initiation, selection, exploration, formulation, collection, and presentation. Katie is a student who goes in search of information for her class research paper. Katie's class readings, her interest…

Doraiswamy, Uma

2011-01-01

368

Personalisation of Web Search  

Microsoft Academic Search

The availability of web search has revolutionised the way people discover in- formation, yet as search services maintain larger and larger indexes they are in danger of becoming a victim of their own success. Many common searches can return a vast number of web pages, many of which will be irrelevant to the searcher, and of which only about ten

Kevin Keenoy; Mark Levene

2003-01-01

369

Emerging technologies in aesthetic medicine.  

PubMed

Recent advances in technology have drastically improved aesthetic treatment for skin. Of particular interest is the emergence of laser- and lightbased technologies, which have offered great promise among skin-rejuvenation therapies. New laser resurfacing techniques for skin rejuvenation offer significant advantages over conventional ablative lasers, such as the CO(2) and erbiumYAG laser systems. Nonablative and fractional lasers, although not as efficacious as ablative therapies, are associated with significantly diminished complication rates and shortened recovery times. Novel devices combining ablative and fractional technologies have also surfaced, demonstrating noteworthy results. In this review, the authors will discuss the implications of current developments in research and technology for skin rejuvenation. Furthermore, the authors will address emerging therapies for acne vulgaris, lipolysis, and cellulite. PMID:19850201

Reddy, Bobby Y; Hantash, Basil M

2009-10-01

370

Emerging food contaminants: a review.  

PubMed

Governments throughout the world are intensifying their efforts to improve food safety. These efforts come as a response to an increasing number of food-safety problems and increasing consumer concerns. In addition, the variety of toxic residues in food is continuously increasing as a consequence of industrial development, new agricultural practices, environmental pollution, and climate change. This paper reviews a selection of emerging contaminants in food, including the industrial organic pollutants perfluorinated compounds (PFCs), polybrominated diphenyl ethers (PBDEs), and nanomaterials; the pharmaceutical residues antibiotics and coccidiostats; and emerging groups of marine biotoxins. The main analytical approaches for their detection and quantification in food will be presented and discussed with special emphasis on biological techniques, when these are feasible. In the last section, a summary of recent publications reporting the concentrations of these compounds in food will be presented and discussed. PMID:20680618

Kantiani, Lina; Llorca, Marta; Sanchís, Josep; Farré, Marinella; Barceló, Damià

2010-11-01

371

Wisconsin Emergency Department Utilization Study.  

National Technical Information Service (NTIS)

Data are presented from an emergency department utilization study initiated by the Wisconsin Emergency Medical Services Program to evaluate demands placed on the emergency medical service system in the State. The following characteristics of emergency dep...

E. Agisim M. Woll D. Giovannini

1973-01-01

372

Emergency Department Presentation  

Microsoft Academic Search

\\u000a Patients with acute coronary syndrome (ACS) may present to the emergency department (ED) via emergency medical services or\\u000a self-transport. When they present via emergency medical services, a diagnostic-quality prehospital 12-lead EKG may enhance\\u000a the sensitivity and specificity of ACS diagnosis and shorten time to treatment. The ED evaluation of the patient at risk for\\u000a ACS includes a thorough history and

Jeffrey A. Holmes; Sean Collins

373

Emergency Medical Service  

NASA Technical Reports Server (NTRS)

Lewis Research Center helped design the complex EMS Communication System, originating from space operated telemetry, including the telemetry link between ambulances and hospitals for advanced life support services. In emergency medical use telemetry links ambulances and hospitals for advanced life support services and allows transmission of physiological data -- an electrocardiogram from an ambulance to a hospital emergency room where a physician reads the telemetered message and prescribes emergency procedures to ambulance attendants.

1980-01-01

374

Flux Emergence (Theory)  

NASA Astrophysics Data System (ADS)

Magnetic flux emergence from the solar convection zone into the overlying atmosphere is the driver of a diverse range of phenomena associated with solar activity. In this article, we introduce theoretical concepts central to the study of flux emergence and discuss how the inclusion of different physical effects (e.g., magnetic buoyancy, magnetoconvection, reconnection, magnetic twist, interaction with ambient field) in models impact the evolution of the emerging field and plasma.

Cheung, Mark C. M.; Isobe, Hiroaki

2014-07-01

375

Emergency exercise methodology  

SciTech Connect

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.

Klimczak, C.A.

1993-03-01

376

Emergency exercise methodology  

SciTech Connect

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.

Klimczak, C.A.

1993-01-01

377

Successful Internet Searching  

NSDL National Science Digital Library

Searching for great resources on the internet is not as easy as we always think it should be. Working through this module will help you learn some quick and easy skills that will help improve your internet searches. Objective: Idaho Content Standards Information and Communication Technology Standards Objective: 9-12.ICT.3.1.3 Formulate specific searches using advanced navigation skills to access a variety of resources. Idaho Technology Standards Where did the internet come from and how do I successfully search online? To introduce you to online internet searching, watch the ...

Bird, Mz.

2011-09-30

378

Basics of online searching  

SciTech Connect

The purpose of this book is to teach the principles of interactive bibliographic searching, or information retrieval to those with little or no prior experience. The major intended audiences are students, working information specialists and librarians, and end users, the people for whom all the searching is done. Material covers such topics as the nature of online searching, the kinds of files available online, the commands used to search for them, and the strategy used to perform a search - with numerous examples from real systems presented.

Meadow, C.T.; Cochrane, P.A.

1981-01-01

379

Techniques for imaging neuroscience  

Microsoft Academic Search

In the last 20 years, a number of non-invasive spatial mapping techniques have been demonstrated to provide powerful insights into the operation of the brain during task performance. These are, in order of their emergence as robust technologies: positron emission tomography, source localization with EEG and MEG, and functional magnetic resonance imaging. The imaging neuroscience study areas represented in this

Robert Turner; Terry Jones

2003-01-01

380

Quantum Search Algorithms  

NASA Astrophysics Data System (ADS)

This article reviews recent progress in quantum database search algorithms. The subject is presented in a self-contained and pedagogical way. The problem of searching a large database (a Hilbert space) for a target item is performed by the famous Grover algorithm which locates the target item with high probability and a quadratic speed-up compared with the corresponding classical algorithm. If the database is partitioned into blocks and one is searching for the block containing the target item instead of the target item itself, then the problem is referred to as partial search. Partial search trades accuracy for speed and the most efficient version is the Grover-Radhakrishnan-Korepin (GRK) algorithm. The target block can be further partitioned into sub-blocks so that GRK's can be performed in a sequence called a hierarchy. We study the Grover search and GRK partial search in detail and prove that a GRK hierarchy is less efficient than a direct GRK partial search. Both the Grover search and the GRK partial search can be generalized to the case with several target items (or target blocks for a GRK). The GRK partial search algorithm can also be represented in terms of group theory.

Korepin, Vladimir E.; Xu, Ying

381

SearchMil.com  

NSDL National Science Digital Library

Developed by Beckstrom Software, this no-nonsense search engine claims to index approximately 785,000 pages in the .mil domain. Like the Google search engine, SearchMil.com caches the versions of pages that its robots find. This helps prevent errors from changed addresses, or in the case of the .mil domain, sites that have been subsequently pulled due to security concerns. Also like Google, SearchMil.com offers a simple keyword search interface and ranked returns that include brief excerpts from the site and links to the site or the cached version. While SearchMil contains more .mil domain pages than the other leading search engines, it is unclear what percentage is indexed, as the Pentagon itself doesn't know the exact size of the .mil domain.

382

Two searches for primeval galaxies  

NASA Technical Reports Server (NTRS)

A number of active galaxies are now known at very large redshifts, some of them even have properties suggestive of galaxies in the process of formation. They commonly show strong Ly-alpha emission, at least some of which appears to be ionized by young stars. Inferred star formation rates are in the range approximately = 100-500 solar mass/yr. An important question is: are there radio-quiet, field counterparts of these systems at comparable redshifts? Whereas, we are probably already observing some evolutionary and formative processes of distant radio galaxies, the ultimate goal is to observe normal galaxies at the epoch when most of their stars form. We have, thus, started a search for emission-line objects at large redshifts, ostensibly young and forming galaxies. Our method is to search for strong line emission (hopefully Ly alpha) employing two techniques: a direct, narrow-band imaging search, using a Fabry-Perot interferometer; and a serendipitous long-slit spectroscopic search.

Thompson, D.; Djorgovski, S.; Trauger, J.

1993-01-01

383

Advance provision of emergency contraception for adolescents.  

PubMed

Emergency contraception is most effective at preventing unintended pregnancy when taken as early as possible following unprotected sexual intercourse. Advance provision of this medication supports more timely and effective use. In the midst of rising teen pregnancy rates, current policies often limit access to emergency contraception for adolescents. A literature search identified three recent experimental studies of advance provision for adolescents. This article reviews those studies and finds strong support for advance provision for adolescents. Usage of emergency contraception increased with advance provision and there was no increase in negative sexual behaviors or decrease in usage of other contraceptive forms. Implications of these findings for school nurses and school-based health center staff are also discussed. PMID:20693415

Adamji, Jehan-Marie; Swartwout, Kathryn

2010-12-01

384

An evolutionary approach for searching metabolic pathways.  

PubMed

Searching metabolic pathways that relate two compounds is a common task in bioinformatics. This is of particular interest when trying, for example, to discover metabolic relations among compounds clustered with a data mining technique. Search strategies find sequences to relate two or more states (compounds) using an appropriate set of transitions (reactions). Evolutionary algorithms carry out the search guided by a fitness function and explore multiple candidate solutions using stochastic operators. In this work we propose an evolutionary algorithm for searching metabolic pathways between two compounds. The operators and fitness function employed are described and the effect of mutation rate is studied. Performance of this algorithm is compared with two classical search strategies. Source code and dataset are available at http://sourceforge.net/projects/sourcesinc/files/eamp/ PMID:24209916

Gerard, Matias F; Stegmayer, Georgina; Milone, Diego H

2013-11-01

385

A Sliding Windows based Dual Support Framework for Discovering Emerging Trends from Temporal Data  

NASA Astrophysics Data System (ADS)

In this paper we present the Dual Support Apriori for Temporal data (DSAT) algorithm. This is a novel technique for discovering Jumping Emerging Patterns (JEPs) from time series data using a sliding window technique. Our approach is particularly effective when performing trend analysis in order to explore the itemset variations over time. Our proposed framework is different from the previous work on JEP in that we do not rely on itemsets borders with a constrained search space. DSAT exploits previously mined time stamped data by using a sliding window concept, thus requiring less memory, minimum computational cost and very low dataset accesses. DSAT discovers all JEPs, as in “naïve” approaches, but utilises less memory and scales linearly with large datasets sets as demonstrated in the experimental section.

Khan, M. Sulaiman; Coenen, F.; Reid, D.; Patel, R.; Archer, L.

386

Avoiding medical emergencies.  

PubMed

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

Omar, Y

2013-03-01

387

Emerging Adulthood in Argentina.  

ERIC Educational Resources Information Center

Examined conceptions of emerging adulthood among Argentinians in their middle twenties. Found wide support for individualistic criteria for adulthood, but also criteria suggesting more collectivistic values. Identified gender, social class origin, and educational attainment differences. Concluded that emerging adulthood is a distinct developmental…

Facio, Alicia; Micocci, Fabiana

2003-01-01

388

Emerging Organizational Structures.  

ERIC Educational Resources Information Center

Discussion of emerging higher educational organizational structures focuses on the increasing importance of distance education. Considers the emerging organizational landscape, three types of network organizations, six organization archetypes, organizational forms that support distance education, and implications for higher education planners. (DB)

Carchidi, Daniel M.; Peterson, Marvin W.

2000-01-01

389

Emergency Medical Technician.  

ERIC Educational Resources Information Center

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…

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

390

Emergency Victim Care. A Training Manual for Emergency Medical Technicians. Module 11--Childbirth, Pediatric Emergencies. Revised.  

ERIC Educational Resources Information Center

This training manual for emergency medical technicians, one of 14 modules that comprise the Emergency Victim Care textbook, covers childbirth and pediatric emergencies. Objectives stated for the two chapters are for the students to be able to describe: emergency procedures for normal childbirth, unusual childbirth emergencies, emergency care for…

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

391

Electric power emergency handbook  

SciTech Connect

The Emergency Electric Power Administration's Emergency Operations Handbook is designed to provide guidance to the EEPA organization. It defines responsibilities and describes actions performed by the government and electric utilities in planning for, and in operations during, national emergencies. The EEPA Handbook is reissued periodically to describe organizational changes, to assign new duties and responsibilities, and to clarify the responsibilities of the government to direct and coordinate the operations of the electric utility industry under emergencies declared by the President. This Handbook is consistent with the assumptions, policies, and procedures contained in the National Plan for Emergency Preparedness. Claimancy and restoration, communications and warning, and effects of nuclear weapons are subjects covered in the appendices.

Labadie, J.R.

1980-09-01

392

VisSearch: A Collaborative Web Searching Environment  

ERIC Educational Resources Information Center

VisSearch is a collaborative Web searching environment intended for sharing Web search results among people with similar interests, such as college students taking the same course. It facilitates students' Web searches by visualizing various Web searching processes. It also collects the visualized Web search results and applies an association rule…

Lee, Young-Jin

2005-01-01

393

Transportation Networks for Emergency Evacuations  

SciTech Connect

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.

Franzese, Oscar [ORNL; Liu, Cheng [ORNL

2008-01-01

394

Helical CT in emergency radiology.  

PubMed

Today, a wide range of traumatic and nontraumatic emergency conditions are quickly and accurately diagnosed with helical computed tomography (CT). Many traditional emergency imaging procedures have been replaced with newer helical CT techniques that can be performed in less time and with greater accuracy, less patient discomfort, and decreased cost. The speed of helical technology permits CT examination of seriously ill patients in the emergency department, as well as patients who might not have been taken to CT previously because of the length of the examinations of the past. Also, helical technology permits multiple, sequential CT scans to be quickly obtained in the same patient, a great advance for the multiple-trauma patient. Higher quality CT examinations result from decreased respiratory misregistration, enhanced intravenous contrast material opacification of vascular structures and parenchymal organs, greater flexibility in image reconstruction, and improved multiplanar and three-dimensional reformations. This report summarizes the role and recommended protocols for the helical CT diagnosis of thoracic aortic trauma; aortic dissection; pulmonary embolism; acute conditions of the neck soft tissues; abdominal trauma; urinary tract stones; appendicitis; diverticulitis; abdominal aortic aneurysm; fractures of the face, spine, and extremities; and acute stroke. PMID:10551209

Novelline, R A; Rhea, J T; Rao, P M; Stuk, J L

1999-11-01

395

Image analysis tools and emerging algorithms for expression proteomics  

PubMed Central

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.

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

2012-01-01

396

Codex search patterns  

US Patent & Trademark Office Database

A search engine optimizer that works independently and in parallel with a browser and search engine supercomputer to gather, analyze, and distill input information interactively. The optimizer reorganizes the input, and providing an optimized version as an output. The optimized version of the input (e.g. output) is sent to the search engine that responds to the end user with search results. The optimizer recognizes each request as a pattern and stores the pattern in an advanced Glyph format. This permits the optimizer to identify a left and ride side checkmate combination required to achieve certitude.

2013-02-26

397

Inktomi Search Engine  

NSDL National Science Digital Library

The Inktomi search engine at the University of California at Berkeley offers a large database of indexed Web documents and "scalable web server" technology providing very fast search retrievals. Inktomi's simple search interface uses "+" as its MUST operator and "-" as its NOT operator. Relevance of the retrieval is ranked by how many of the words are used on the retrieved page, and by the relative importance of those words, although how this importance is determined is not revealed. Inktomi's database upgrade on December 29, 1995 made 2.8 million documents available for searching.

1998-01-01

398

Emergency Operation Center  

NASA Technical Reports Server (NTRS)

The Emergency Operation Center (EOC) is a site from which NASA LaRC Emergency Preparedness Officials exercise control and direction in an emergency. Research was conducted in order to determine what makes an effective EOC. Specifically information concerning the various types of equipment and communication capability that an efficient EOC should contain (i.e., computers, software, telephone systems, radio systems, etc.) was documented. With this information a requirements document was written stating a brief description of the equipment and required quantity to be used in an EOC and then compared to current capabilities at the NASA Langley Research Center.

Chinea, Anoushka Z.

1995-01-01

399

ReSEARCH: A Requirements Search Engine.  

National Technical Information Service (NTIS)

This research address three closely related problems. (1) Most current search technology is based on a popularity metric (e.g., PageRank or ExpertRank), but not on the semantic content of the document. (2) When building components in a service-oriented ar...

C. Martell G. Gehrke P. Anand P. H. Adams R. Gera

2008-01-01

400

Volunteering for Emergency Preparedness.  

National Technical Information Service (NTIS)

This nation-wide quantitative telephone survey predicts levels of voluntary activity for emergency and disaster preparedness. The study involved a random national phone sample of 1,595 respondents in the 48 contiguous states. Actual voluntary activity per...

J. Nehnevajsa

1989-01-01

401

Winter Weather Emergencies  

MedlinePLUS

Severe winter weather can lead to health and safety challenges. You may have to cope with Cold related health problems, including ... there are no guarantees of safety during winter weather emergencies, you can take actions to protect yourself. ...

402

Federal Emergency Management Agency  

MedlinePLUS

Federal Emergency Management Agency Skip to Main Content About Contact Us FAQs Languages English Español Français Ti?ngVi?t ??????? ???? Kreyól Ayisyen ... Business National Preparedness National Preparedness System National Incident Management System Training Continuity of Operations Integrated Public Alert ...

403

Emergency Evacuation Procedures.  

National Technical Information Service (NTIS)

The videotape and the booklet have been designed as a flexible supplement to nursing education classes that cover emergency evacuation procedures, policies, and regulations at each Veterans Administration Medical Center. The objective of the program is to...

1986-01-01

404

Clustering of Emerging Flux  

NASA Technical Reports Server (NTRS)

Observations show that newly emerging flux tends to appear on the Solar surface at sites where there is flux already. This results in clustering of solar activity. Standard dynamo theories do not predict this effect.

Ruzmaikin, A.

1997-01-01

405

Emerging and reemerging pathogens.  

PubMed

From 1973 to 1995, 29 new and reemerging pathogenic microbes were recognized. However, in discussions about emerging infectious diseases, the focus is often on the clinical effects of the host-parasite relationship, rather than the examination of the biology of the pathogen. Many of what we refer to as emerging diseases are characterized better as 'diseases of human progress'. Thus, the aerosolization of water has played an important role in the emergence of Legionella pneumophila infections. New diseases are superimposed on endemic diseases such as diarrhoeal diseases, malaria and tuberculosis. In addition, many pathogens are becoming increasingly resistant to standard antimicrobial drugs, making treatment difficult and in some cases impossible. We summarize our experience on emerging parasitic diseases (primary amoebic meningoencephalitis, respiratory cryptosporidiosis, and diplogonoporiasis), and selected problems of bacterial resistance (MDR tuberculosis caused by Mycobacterium bovis and macrolide-resistance mechanisms of Streptococcus pneumoniae and S. pyogenes). PMID:11091058

Gomez-Lus, R; Clavel, A; Castillo, J; Seral, C; Rubio, C

2000-11-01

406

Emergency Preparedness for Childbirth  

MedlinePLUS

... Emergency contact list • Disposable diapers • Small bottles of hand sanitizer • Scissors and white shoe laces that• A package ... hands thoroughly with soap and water or use hand sanitizer. 1. As soon as the head is out, ...

407

Boundary Search for Constrained Numerical Optimization Problems in ACO Algorithms  

Microsoft Academic Search

This paper presents a novel boundary approach which is included as a constraint-handling technique in an ant colony algorithm.\\u000a The necessity of approaching the boundary between the feasible and infeasible search space for many constrained optimization\\u000a problems is a paramount challenge for every constraint-handling technique. Our proposed technique precisely focuses the search\\u000a on the boundary region and can be either

Guillermo Leguizamón; Carlos A. Coello Coello

2006-01-01

408

Measuring Customer Perceptions of Emergency Facility Services  

Microsoft Academic Search

The purpose of this study was to use a qualitative research technique and define problems faced by one hospital that was attempting to increase demand for its emergency services. A telephone survey of 450 affluent and well-educated suburban residents was conducted to determine their perceptions of six major facilities. Topics included actual and preferred facility use by injury type, general

Raymond A. Phelps II; Edward J. Ryan Jr; William A. Bailey

1995-01-01

409

Emergency Dental Treatment for the Family Physician  

PubMed Central

The family physician is often expected, and should be able, competently to provide emergency dental treatment. With the knowledge of relatively few techniques and materials, this care can often be simply provided. Treatment discussed includes: odontogenic infections, avulsions, fractured teeth, post-operative bleeding and pain, dentures, dental caries, periodontal problems, analgesics, and allergy to local anesthetic.

Baker, Brian

1987-01-01

410

Emergency Communications Console  

NASA Technical Reports Server (NTRS)

NASA has applied its communications equipment expertise to development of a communications console that provides, in a compact package only slightly larger than an electric typewriter, all the emergency medical services communications functions needed for a regional hospital. A prototype unit, built by Johnson Space Center, has been installed in the Odessa (Texas) Medical Center Hospital. The hospital is the medical control center for the 17-county Permian Basin Emergency Medical System in west Texas. The console project originated in response to a request to NASA from the Texas governor's office, which sought a better way of providing emergency medical care in rural areas. Because ambulance travel time is frequently long in remote areas of west Texas, it is important that treatment begin at the scene of the emergency rather than at the hospital emergency room. A radio and telephone system linking ambulance emergency technicians and hospital staff makes this possible. But earlier equipment was complex, requiring specialized operators. A highly reliable system was needed to minimize breakdowns and provide controls of utmost simplicity, so that the system could be operated by physicians and nurses rather than by communications specialists. The resulting console has both radio and telephone sections. With the radio equipment, hospital personnel can communicate with ambulance drivers and paramedics, receive incoming electrocardiagrams, consult with other hospitals, page hospital staff and set up a radio-to-telephone "patch." The telephone portion of the system includes a hotline from the Permian Basin Emergency Medical Service's resource control center, an automatic dialer for contacting special care facilities in the Permian Basin network, a hospital intercom terminal and a means of relaying cardioscope displays and other data between hospitals. The integrated system also provides links with local disaster and civil defense organizations and with emergency "Dial 911" control points.

1978-01-01

411

The Web Beyond Google: Innovative Search Tools and Their Implications for Reference Services  

Microsoft Academic Search

This article explores Internet search tools that harness emerging technologies and user-centric features such as Web 2.0 sites, mobile applications, metasearching, real-time information, peer-to-peer searches, visual interfaces, and computational abilities. Reference librarians everywhere have incorporated Google into their searching repertoires, but what about other search engines that feature “bleeding edge” technologies and human-friendly designs? Our article is a concise guide

Brett Spencer; Lauren B. Dodd; William C. Friedman; Qiong Xu

2011-01-01

412

Spying on Search Strategies  

ERIC Educational Resources Information Center

Only the most dedicated super-searchers are motivated to learn and control command systems, like DialogClassic, that rely on the user to input complex search strategies. Infrequent searchers and most end users choose interfaces that do some of the work for them and make the search process appear easy. However, the easier a good interface seems to…

Tenopir, Carol

2004-01-01

413

Quantum Search and Beyond.  

National Technical Information Service (NTIS)

Ten years ago, the quantum search algorithm was designed to provide a way of searching a space of N items in only N steps. In the last ten years, it has been used as a building block for numerous applications, both physical and algorithmic -- these are as...

L. K. Grover

2008-01-01

414

Noisy Generalized Binary Search  

Microsoft Academic Search

This paper addresses the problem of noisy Generalized Binary Search (GBS). GBS is a well-known greedy algorithm for determining a binary-valued hypothe- sis through a sequence of strategically selected queries. At each step, a query is selected that most evenly splits the hypotheses under consideration into two dis- joint subsets, a natural generalization of the idea underlying classic binary search.

Robert Nowak

415

Online Search Interface Design.  

ERIC Educational Resources Information Center

Discusses the design of interfaces for online systems and suggests requirements that must be met to offer maximum aid to inexperienced users. Highlights include the online search process, user data, query processing, database descriptors, semantic links, multilingual processing, search strategies, and distributed systems. A 20-page bibliography…

Vickery, Brian; Vickery, Alina

1993-01-01

416

Variable neighborhood search  

Microsoft Academic Search

Variable neighborhood search (VNS) is a recent metaheuristic for solving combinatorial and global optimization problems whose basic idea is systematic change of neighborhood within a local search. In this survey paper we present basic rules of VNS and some of its extensions. Moreover, applications are briefly summarized. They comprise heuristic solution of a variety of optimization problems, ways to accelerate

Nenad Mladenovic; Pierre Hansen

1997-01-01

417

Hierarchical Quantum Search  

NASA Astrophysics Data System (ADS)

Database search has wide applications and is used as a subroutine in many important algorithms. In this paper, we will consider a database with a single target item. Quantum algorithm (Grover) locates the target item faster than any classical algorithm. In addition to a full (Grover) search, it frequently occurs that one is looking for a group of items (a block) containing the target item, rather than the target item itself. This problem is known as partial search. As a generalization of the full search, partial search is of particular importance in practice. Partial search trades accuracy for speed, i.e., it works faster than a full search. There exists different versions of partial search. We will study the optimized version of the algorithm discovered by Grover and Radhakrishnan and call it GRK. GRK can be applied successively (in a sequence). First, the database is partitioned into blocks and GRK is applied to find the target block. This target block is then partitioned into subblocks and GRK is used again to find the target subblock. This procedure can be repeated if the database is large enough. (This sequence of GRK's is called a hierarchy.) Another possibility is to partition the database into subblocks directly and use GRK to find the target subblock once. In this paper, we will prove that the latter is faster (makes less queries to the Oracle).

Korepin, Vladimir E.; Xu, Ying

418

Hierarchical Quantum Search  

NASA Astrophysics Data System (ADS)

Database search has wide applications and is used as a subroutine in many important algorithms. In this paper we will consider a database with a single target item. Quantum algorithm [Grover] locates the target item faster than any classical algorithm. In addition to a full [Grover] search, it frequently occurs that one is looking for a group of items [a block] containing the target item, rather than the target item itself. This problem is known as partial search. As a generalization of the full search, partial search is of particular importance in practice. Partial search trades accuracy for speed, i.e. it works faster than a full search. There exists different versions of partial search. We will study the optimized version of the algorithm discovered by Grover and Radhakrishnan and call it GRK. GRK can be applied successively [in a sequence]. First the database is partitioned into blocks and GRK is applied to find the target block. Then this target block is partitioned into sub-blocks and GRK is used again to find the target sub-block. This procedure can be repeated if the database is large enough. [This sequence of GRK's is called a hierarchy.] Another possibility is to partition the database into sub-blocks directly and use GRK to find the target sub-block once. In this paper we will prove that the latter is faster [makes less queries to the oracle].

Korepin, Vladimir E.; Xu, Ying

2008-12-01

419

The Wandering Search.  

National Technical Information Service (NTIS)

The aggressive search for a target believed to be remaining within a specified region is analytically modeled. The probability of detection is expressed, both for the random search path and for any deliberate, non-overlapping path. The results are valid f...

J. L. Bagby

1979-01-01

420

Geoscience Job Search Engine  

NSDL National Science Digital Library

The Scripps Institution of Oceanography at the University of California, San Diego provides the Geoscience Job Search Engine. The search engine lists academic, industry, and student opportunities in the US and other countries. Searchable fields range from aqueous geochemistry to environmental engineering to volcanology.

421

Fractional charge search  

SciTech Connect

A device to search for fractional charge in matter is described. The sample is coupled to a low-noise amplifier by a periodically varying capacitor and the resulting signal is synchronously detected. The varying capacitor is constructed as a rapidly spinning wheel. Samples of any material in volumes of up to 0.05 ml may be searched in less than an hour.

Innes, W.; Klein, S.; Perl, M.; Price, J.C.

1982-06-01

422

Searching for Exoplanets.  

National Technical Information Service (NTIS)

The series of investigations which lead to the conclusion that a serious search for planets orbiting stars other than our Sun (exoplanets) is feasible, are reviewed. The expectation of a search and the means of direct and indirect detection that would be ...

B. F. Burke

1992-01-01

423

Measuring Search Engine Quality  

Microsoft Academic Search

The effectiveness of twenty public search engines is evaluated using TREC-inspired methodsand a set of 54 queries taken from real Web search logs. The World Wide Web is taken as thetest collection and a combination of crawler and text retrieval system is evaluated. The enginesare compared on a range of measures derivable from binary relevance judgments of the firstseven live

David Hawking; Nick Craswell; Peter Bailey; Kathleen Griffiths

2001-01-01

424

Origins of Coordinate Searching.  

ERIC Educational Resources Information Center

Reviews the origins of post-coordinate searching and emphasizes that the focal point should be on the searcher, not on the item being indexed. Highlights include the history of the term information retrieval; edge notched punch cards; the "peek-a-boo" system; the Uniterm system; and using computers to search for information. (LRW)

Kilgour, Frederick G.

1997-01-01

425

Yahoo People Search  

NSDL National Science Digital Library

In 1996 Yahoo added this enhancement to its popular Internet directory service. It's People Search allows you to find telephone numbers and email addresses by entering a search form. The telephone directory is supplied by Database America (the provider of the Switchboard.com database), and the email interface directly queries Four11.com.

1996-01-01

426

Structural Web Search Engine  

Microsoft Academic Search

We present a new approach in web search engines. The web creates new challenges for information retrieval. The vast improvement in information access is not the only advantage resulting from the keyword search. Ad- ditionally, much potential exists for analyzing interests and relationships within the structure of the web. The creation of a hyperlink by the author of a web

Arash Rakhshan; Lawrence B. Holder; Diane J. Cook

2003-01-01

427

Searches Conducted for Engineers.  

ERIC Educational Resources Information Center

This paper reports an industrial information specialist's experience in performing online searches for engineers and surveys the databases used. Engineers seeking assistance fall into three categories: (1) those who recognize the value of online retrieval; (2) referrals by colleagues; and (3) those who do not seek help. As more successful searches

Lorenz, Patricia

428

Conducting efficient literature searches.  

PubMed

Access to the most relevant articles with recent evidence is essential for writing peer-reviewed articles and informing clinical decision making. A clear method is needed to undertake a mental health literature review to ensure the topic is covered adequately. Choosing the right key words and search strategies and using appropriate databases are essential starting points. Drawing on different search methods to access a variety of sources ensures the most relevant articles are retrieved for a high-quality clinical literature review. Advanced searching includes the use of the medical subject headings thesaurus and other strategies to refine and focus the search for optimum sensitivity and specificity. Regardless of whether a search is basic or advanced, stages of the search procedures, such as determining key terms, databases used and the date range used within each, fields selected, dates of access, a history of search sets, and the justification for excluding data, should be documented to provide an audit trail. This article provides an overview of these search steps. PMID:19921761

Cleary, Michelle; Hunt, Glenn E; Horsfall, Jan

2009-11-01

429

Intermittent search strategies  

NASA Astrophysics Data System (ADS)

This review examines intermittent target search strategies, which combine phases of slow motion, allowing the searcher to detect the target, and phases of fast motion during which targets cannot be detected. It is first shown that intermittent search strategies are actually widely observed at various scales. At the macroscopic scale, this is, for example, the case of animals looking for food; at the microscopic scale, intermittent transport patterns are involved in a reaction pathway of DNA-binding proteins as well as in intracellular transport. Second, generic stochastic models are introduced, which show that intermittent strategies are efficient strategies that enable the minimization of search time. This suggests that the intrinsic efficiency of intermittent search strategies could justify their frequent observation in nature. Last, beyond these modeling aspects, it is proposed that intermittent strategies could also be used in a broader context to design and accelerate search processes.

Bénichou, O.; Loverdo, C.; Moreau, M.; Voituriez, R.

2011-01-01

430

Neuroscience Web Search  

NSDL National Science Digital Library

Neuroscience Web Search, created by Fred K. Lenherr of the Applied Computing Systems Institute, attempts to provide interested users with a searchable index of over 112,000 web pages related to neuroscience. It "includes the home pages of neuroscientists, neuro-medical links, and computational neuroscience." Users can search on the text and/or titles of pages. This search tool is similar to Argos (discussed in the November 1, 1996 Scout Report). The difference is that whereas Argos is both quite clear about the sources of its database and is peer reviewed, Neuroscience Web Search is neither. It is a much larger local subject search engine, but it is more difficult to assess the quality of the materials retrieved.

Lenherr, Fred K.

1996-01-01

431

ROV Grid Search  

NSDL National Science Digital Library

This activity will show students how a grid search is conducted by remotely operated vehicles (ROVs). They will learn that in order to locate target sites, underwater camera sleds and ROVs must often follow a well-defined search pattern. Using methodical sweeping movements, these craft will locate objects that might otherwise be overlooked if a more random searching method was employed. In this activity students get to create a search pattern that will be used to uncover hidden targets. It will offer students an experience that recreates the remote exploration of the sea bottom, a hands-on activity using a remote-controlled vehicle, and an exercise in uncovering targets through methodical searching.

Dispezio, Michael

432

Guided Text Search Using Adaptive Visual Analytics  

SciTech Connect

This research demonstrates the promise of augmenting interactive visualizations with semi- supervised machine learning techniques to improve the discovery of significant associations and insights in the search and analysis of textual information. More specifically, we have developed a system called Gryffin that hosts a unique collection of techniques that facilitate individualized investigative search pertaining to an ever-changing set of analytical questions over an indexed collection of open-source documents related to critical national infrastructure. The Gryffin client hosts dynamic displays of the search results via focus+context record listings, temporal timelines, term-frequency views, and multiple coordinate views. Furthermore, as the analyst interacts with the display, the interactions are recorded and used to label the search records. These labeled records are then used to drive semi-supervised machine learning algorithms that re-rank the unlabeled search records such that potentially relevant records are moved to the top of the record listing. Gryffin is described in the context of the daily tasks encountered at the US Department of Homeland Security s Fusion Center, with whom we are collaborating in its development. The resulting system is capable of addressing the analysts information overload that can be directly attributed to the deluge of information that must be addressed in the search and investigative analysis of textual information.

Steed, Chad A [ORNL; Symons, Christopher T [ORNL; Senter, James K [ORNL; DeNap, Frank A [ORNL

2012-10-01

433

Demography and Public Health Emergency Preparedness: Making the Connection  

PubMed Central

The tools and techniques of population sciences are extremely relevant to the discipline of public health emergency preparedness: protecting and securing the population’s health requires information about that population. While related fields such as security studies have successfully integrated demographic tools into their research and literature, the theoretical and practical connection between the methods of demography and the practice of public health emergency preparedness is weak. This article suggests the need to further the interdisciplinary use of demography by examining the need for a systematic use of population science techniques in public health emergency preparedness. Ultimately, we demonstrate how public health emergency preparedness can incorporate demography to develop more effective preparedness plans. Important policy implications emerge: demographers and preparedness experts need to collaborate more formally in order to facilitate community resilience and mitigate the consequences of public health emergencies.

Katz, Rebecca

2009-01-01

434

Transportation Emergency Preparedness Program Plan.  

National Technical Information Service (NTIS)

The United States Department of Energy (DOE) Transportation Emergency Preparedness Program (TEPP) is a component of the overall comprehensive emergency management system established by DOE Order (DOE O) 151.1C, Comprehensive Emergency Management System. D...

M. Keister

2010-01-01

435

American College of Emergency Physicians  

MedlinePLUS

... Emergency Medicine Assembly Emergency Department Directors Academy Simulation-based Immersive Medical (SIM) Training Course Teaching Fellowship Emergency Medicine Basic Research Skills (EMBRS) Workshop Research Forum Scientific Assembly ACEP14 ...

436

The variants of the harmony search algorithm: an overview  

Microsoft Academic Search

The harmony search (HS) algorithm is a relatively new population-based metaheuristic optimization algorithm. It imitates the\\u000a music improvisation process where musicians improvise their instruments’ pitch by searching for a perfect state of harmony.\\u000a Since the emergence of this algorithm in 2001, it attracted many researchers from various fields especially those working\\u000a on solving optimization problems. Consequently, this algorithm guided researchers

Osama Moh’d Alia; Mandava Rajeswari

2011-01-01

437

Desktop search in the intranet with integrated desktop search engines  

Microsoft Academic Search

The desktop search is a technology more and more popular in computer experience. A desktop search software, like Google desktop search, could offer us a quick service for searching information by building sorted index for the files, images, and other catalogs. But for enterprise, it is not enough only to search in local computer. Sometimes the useful information like meeting

Wei Lun Huang; Tzao Lin Lee; Chiao Szu Liao

2008-01-01

438

Energy Efficiency: Information Sources for New and Emerging Technologies  

SciTech Connect

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.

Parker, Steven A.

2007-12-31

439

Refining spectral library searching.  

PubMed

Spectral library searching has many advantages over sequence database searching, yet it has not been widely adopted. One possible reason for this is that users are unsure exactly how to interpret the similarity scores (e.g., "dot products" are not probability-based scores). Methods to create decoys have been proposed, but, as developers caution, may produce proxies that are not equivalent to reversed sequences. In this issue, Shao et al. (Proteomics 2013, 13, 3273-3283) report advances in spectral library searching where the focus is not on improving the performance of their search engine, SpectraST, but is instead on improving the statistical meaningfulness of its discriminant score and removing the need for decoys. The results in their paper indicate that by "standardizing" the input and library spectra, sensitivity is not lost but is, surprisingly, gained. Their tests also show that false discovery rate (FDR) estimates, derived from their new score, track better with "ground truth" than decoy searching. It is possible that their work strikes a good balance between the theory of library searching and its application. And as such, they hope to have removed a major entrance barrier for some researchers previously unwilling to try library searching. PMID:24123856

Rudnick, Paul A

2013-11-01

440

Multiscale Adaptive Search.  

PubMed

We present a continuous-space multiscale adaptive search (MAS) algorithm for single or multiple searchers that finds a stationary target in the presence of uncertainty in sensor diameter. The considered uncertainty simulates the influence of the changing environment and terrain as well as adversarial actions that can occur in practical applications. When available, information about the foliage areas and a priori distribution of the target position is included in the MAS algorithm. By adapting to various uncertainties, MAS algorithm reduces the median search time to find the target with a probability of detection of at least P(D) and a probability of false alarm of at most P(FA). We prove that MAS algorithm discovers the target with the desired performance bounds P(D) and P(FA). The unique features of the MAS algorithm are realistic second-order dynamics of the mobile sensors that guarantees uniform coverage of the surveyed area and a two-step Neyman-Pearson-based decision-making process. Computer simulations show that MAS algorithm performs significantly better than lawnmower-type search and billiard-type random search. Our tests suggest that the median search time in the MAS algorithm may be inversely proportional to the number of participating searchers. As opposed to lawnmower search, the median search time in the MAS algorithm depends only logarithmically on the magnitude of uncertainty. PMID:21303742

Hubenko, Alice; Fonoberov, Vladimir A; Mathew, George; Mezi?, Igor

2011-02-01

441

Netscape Network Search  

NSDL National Science Digital Library

In late June 1999, Netscape announced a new search service built on its Open Directory Project (reviewed in the November 20, 1998 Scout Report), its Smart Browsing technology, and the services of Google.com (reviewed in the June 4, 1999 Scout Report). Probably the nicest new feature for current Netscape browser users is that they can now simply type the word "search," followed by a space and the term they are searching for, within the location bar whenever they want to conduct a search. Search returns are reviewed and categorized by a team of editors from the Open Directory Project, with official or especially useful sites tagged with an "Editor's Choice" icon. Users should note that, although the Open Directory includes over 675,000 sites, the sites have been "hand-picked" and thus some arbitrary omissions inevitably result. However, a link is provided at the bottom of each search page for additional results using the Google engine, which searches over 60 million more sites.

1997-01-01

442

Randomized Parallel Proof-Number Search  

NASA Astrophysics Data System (ADS)

Proof-Number Search (PNS) is a powerful method for solving games and game positions. Over the years, the research on PNS has steadily produced new insights and techniques. With multi-core processors becoming established in the recent past, the question of parallelizing PNS has gained new urgency. This article presents a new technique called Randomized Parallel Proof-Number Search (RPPNS) for parallelizing PNS on multi-core systems with shared memory. The parallelization is based on randomizing the move selection of multiple threads, which operate on the same search tree. RPPNS is tested on a set of complex Lines-of-Action endgame positions. Experiments show that RPPNS scales well. Four directions for future research are given.

Saito, Jahn-Takeshi; Winands, Mark H. M.; van den Herik, H. Jaap

443

OAIster Search Interface  

NSDL National Science Digital Library

The OAIster project(last reviewed in the March 15, 2002 Scout Report), is now up and running. The OAIster search interface allows users the opportunity to freely access and search a wide variety of digital resources from various institutions. The database currently contains 274,062 records from 56 institutions, with each record leading to an actual digital collection hosted at an institution. Users can view each collection separately or search the database by keyword, author, title, or subject. This user-friendly interface is valuable to students, teachers, researchers, and other information professionals needing simultaneous access to a variety of digital resources.

2002-01-01

444

Correspondence: Searching sequence space  

SciTech Connect

This correspondence debates the efficiency and application of genetic algorithms (GAs) to search protein sequence space. The important experimental point is that such sparse searches utilize physically realistic syntheses. In this regard, all GA-based technologies are very similar; they {open_quotes}learn{close_quotes} from their initial sparse search and then generate interesting new proteins within a few iterations. Which GA-based technology is best? That probably depends on the protein and the specific engineering goal. Given the fact that the field of combinatorial chemistry is still in its infancy, it is probably wise to consider all of the proven mutagenesis methods. 19 refs.

Youvan, D.C. [Palo Alto Inst. of Molecular Medicine, Mountain View, CA (United States)] [Palo Alto Inst. of Molecular Medicine, Mountain View, CA (United States)

1995-08-01

445

Emerging nondestructive inspection methods for aging aircraft  

SciTech Connect

This report identifies and describes emerging nondestructive inspection (NDI) methods that can potentially be used to inspect commercial transport and commuter aircraft for structural damage. The nine categories of emerging NDI techniques are: acoustic emission, x-ray computed tomography, backscatter radiation, reverse geometry x-ray, advanced electromagnetics, including magnetooptic imaging and advanced eddy current techniques, coherent optics, advanced ultrasonics, advanced visual, and infrared thermography. The physical principles, generalized performance characteristics, and typical applications associated with each method are described. In addition, aircraft inspection applications are discussed along with the associated technical considerations. Finally, the status of each technique is presented, with a discussion on when it may be available for use in actual aircraft maintenance programs. It should be noted that this is a companion document to DOT/FAA/CT-91/5, Current Nondestructive Inspection Methods for Aging Aircraft.

Beattie, A.; Dahlke, L.; Gieske, J. [and others

1994-01-01

446

Information Structure and Hypertext Search Results  

Microsoft Academic Search

This paper proposes a framework for integrating a principled theory of information structure with traditional web-based search presentation techniques, and sketches the benefits of such an approach. It begins by reviewing research that has been done in t he technical writing industry on on-line information structure, highlighting some of the difficulties and challenges faced by deve lopers and users of

Matt Carmack; Deryle Lonsdale

447

A computer search for asteroid families  

NASA Technical Reports Server (NTRS)

The improved proper elements of 4100 numbered asteroids have been searched for clusterings in a, e, i space using a computer technique based on the D-criterion. A list of 14 dynamical families each with more than 15 members is presented. Quantitative measurements of the density and dimensions in phase space of each family are presented.

Lindblad, Bertil A.

1992-01-01

448

Inverted files for text search engines  

Microsoft Academic Search

The technology underlying text search engines has advanced dramatically in the past decade. The development of a family of new index representations has led to a wide range of innovations in index storage, index construction, and query evaluation. While some of these developments have been consolidated in textbooks, many specific techniques are not widely known or the textbook descriptions are

Justin Zobel; Alistair Moffat

2006-01-01

449

XSEarch: A Semantic Search Engine for XML  

Microsoft Academic Search

XSEarch, a semantic search engine for XML, is presented. XSEarch has a simple query lan- guage, suitable for a naive user. It returns se- mantically related document fragments that satisfy the user's query. Query answers are ranked using extended information-retrieval techniques and are generated in an order sim- ilar to the ranking. Advanced indexing tech- niques were developed to facilitate

Sara Cohen; Jonathan Mamou; Yaron Kanza; Yehoshua Sagiv

2003-01-01

450

Emergency inventory management for disasters-A review.  

PubMed

There has been a recent surge in the publication of academic literature examining various aspects of emergency inventory management for disasters. This article contains a timely literature review of these studies, beginning with an exposition of the characteristics of storage and delivery options for emergency supplies, with a particular emphasis on the differences between emergency inventories and conventional inventory management. Using a novel classification scheme and a comprehensive search of the inventoryrelated literature, an overview of the emergency inventory management studies is also presented. Finally, based on this extensive review, a discussion is presented based on the critical issues and key findings related to the emergency inventory management field, and include suggestions for future research directions. PMID:25069022

Ozguven, Eren Erman; Ozbay, Kaan

2014-01-01

451

Current Trends in Gamma Ray Detection for Radiological Emergency Response  

SciTech Connect

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.

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

2011-08-18

452

Verification of Emergent Behaviors in Swarm-Based Systems.  

National Technical Information Service (NTIS)

The emergent properties of swarms make swarm-based missions powerful, but at the same time more difficult to design and to assure that the proper behaviors will emerge. We are currently investigating formal methods and techniques for verification and vali...

C. Rouf A. Vanderbilt M. Hinchey

2004-01-01

453

Australian Patent Office International Searching  

Microsoft Academic Search

The article describes how the Australian Patent Office constructed search files to fulfi; its responsibilities as a PCT International Searching Authority. Search files are established on an ad hoc basis as the need arises and comprise classified sets of abstracts of patent documents included in the PCT minimum documentation. When an international search is received a search strategy is decided

P. A. Smith

1987-01-01

454

Emerging Biometric Modalities: Challenges and Opportunities  

NASA Astrophysics Data System (ADS)

Recent advances in sensor technology and wide spread use of various electronics (computers, PDA, mobile phones etc.) provide new opportunities for capturing and analyses of novel physiological and behavioural traits of human beings for biometric authentication. This paper presents an overview of several such types of human characteristics that have been proposed as alternatives to traditional types of biometrics. We refer to these characteristics as emerging biometrics. We survey various types of emerging modalities and techniques, and discuss their pros and cons. Emerging biometrics faces several limitations and challenges which include subject population coverage (focusing mostly on adults); unavailability of benchmark databases; little research with respect to vulnerability/robustness against attacks; and some privacy concerns they may arise. In addition, recognition performance of emerging modalities are generally less accurate compared to the traditional biometrics. Despite all of these emerging biometrics posses their own benefits and advantages compared to traditional biometrics which makes them still attractive for research. First of all, emerging biometrics can always serve as a complementary source for identity information; they can be suitable in applications where traditional biometrics are difficult or impossible to adapt such as continuous or periodic re-verification of the user's identity etc.

Gafurov, Davrondzhon

455

Perioperative hypertensive emergencies.  

PubMed

The concept of "perioperative hypertensive emergency" must be defined differently from that of ambulatory hypertensive emergency in view of its unique clinical considerations in an atypical setting. It should be noted that moderately high normal blood pressure (BP) values in the perioperative setting often trigger situations requiring immediate treatment in what would otherwise be a "BP-acceptable" non-surgical condition. Commonly recognized circumstances that may result in a perioperative hypertensive emergency include exacerbation of severe mitral insufficiency, hypertension resulting in acute decompensated heart failure, hypertension caused by acute catecholamine excess, rebound hypertension after withdrawal of antihypertensive medications, hypertension resulting in bleeding from vascular surgery suture lines, intracerebral hemorrhage, aortic dissection, hypertension associated with preeclampsia, and hypertension associated with autonomic dysreflexia. In addition, perioperative BP lability has been reported to increase the risk for stroke, acute kidney injury, and 30-day mortality in patients undergoing cardiac surgery. PMID:24852830

Aronson, Solomon

2014-07-01

456

Hanford Emergency Response Plan  

SciTech Connect

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.

Wagoner, J.D.

1994-04-01

457

PFP Emergency Lighting Study  

SciTech Connect

NFPA 101, section 5-9 mandates that, where required by building classification, all designated emergency egress routes be provided with adequate emergency lighting in the event of a normal lighting outage. Emergency lighting is to be arranged so that egress routes are illuminated to an average of 1.0 footcandle with a minimum at any point of 0.1 footcandle, as measured at floor level. These levels are permitted to drop to 60% of their original value over the required 90 minute emergency lighting duration after a power outage. The Plutonium Finishing Plant (PFP) has two designations for battery powered egress lights ''Emergency Lights'' are those battery powered lights required by NFPA 101 to provide lighting along officially designated egress routes in those buildings meeting the correct occupancy requirements. Emergency Lights are maintained on a monthly basis by procedure ZSR-12N-001. ''Backup Lights'' are battery powered lights not required by NFPA, but installed in areas where additional light may be needed. The Backup Light locations were identified by PFP Safety and Engineering based on several factors. (1) General occupancy and type of work in the area. Areas occupied briefly during a shiftly surveillance do not require backup lighting while a room occupied fairly frequently or for significant lengths of time will need one or two Backup lights to provide general illumination of the egress points. (2) Complexity of the egress routes. Office spaces with a standard hallway/room configuration will not require Backup Lights while a large room with several subdivisions or irregularly placed rooms, doors, and equipment will require Backup Lights to make egress safer. (3) Reasonable balance between the safety benefits of additional lighting and the man-hours/exposure required for periodic light maintenance. In some plant areas such as building 236-Z, the additional maintenance time and risk of contamination do not warrant having Backup Lights installed in all rooms. Sufficient light for egress is provided by existing lights located in the hallways.

BUSCH, M.S.

2000-02-02

458

Copyright Data Dissemination Search  

NSDL National Science Digital Library

An impressive, multi-functional interface for the Canadian Intellectual Property Office's online services, this Web site is user friendly for anyone in search of existing Canadian patents or copyrights, as well as for those interested in submitting an application for either. Offering extensive how-to information on the application and product development processes, the site will interest those conducting business or research on intellectual property in Canada. Patents, copyrights, and trademarks are all searchable via the main page through either single or multiple terms, however specific or imprecise. For example, users can search for patents via a known patent number or by product type, manufacturer name, or year. Searches can also be conducted on authors, agents, and country of origin. Additionally, all databases can be searched simultaneously and with multiple terms and/or delimiters. As a primary resource, the site also links to other agencies and associations (Canadian and international) that support intellectual property rights and trade.

2001-01-01

459

ArchSearch Catalogue  

NSDL National Science Digital Library

The Archaeology Data Service (ADS), a division of the UK's Arts and Humanities Data Service (AHDS), has recently launched the ArchSearch Catalogue. This catalogue allows users to search simultaneously the holdings of various archaeological collections, such as the National Excavation Index for England, the National Monuments Record of Scotland, the Microfilm Index for England, and the Society of Antiquaries of London. Moreover, the catalogue--by way of the AHDS's--links to information gateways serving researchers interested in history, performing arts, text studies, and visual arts. Additional archaeological archives will be included in the upcoming weeks as the service expands. Users may search several different fields in the catalog: Keyword, Where & When?, What?, Who?, Map, Project Name, and Complex, which permits the use of Boolean operators. Users may also independently search the special collections of the ADS or the individual information service providers of the AHDS.

460

Dosimetry challenges for implementing emerging technologies  

PubMed Central

During the last 10 years, radiation therapy technologies have gone through major changes, mainly related introduction of sophisticated delivery and imaging techniques to improve the target localization accuracy and dose conformity. While implementation of these emerging technologies such as image-guided SRS/SBRT, IMRT/IMAT, IGRT, 4D motion management, and special delivery technologies showed substantial clinical gains for patient care, many other factors, such as training/quality, efficiency/efficacy, and cost/effectiveness etc. remain to be challenging. This talk will address technical challenges for dosimetry verification of implementing these emerging technologies in radiation therapy.

Yin, Fang-Fang; Oldham, Mark; Cai, Jing; Wu, Qiuwen

2010-01-01

461

[Endocrine emergencies during pregnancy].  

PubMed

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

Harbeck, B; Schütt, M; Sayk, F

2012-03-01

462

Pediatric hypertensive emergencies.  

PubMed

Hypertensive emergency is a life-threatening condition that requires immediate evaluation and treatment. In children, severe hypertension can be caused by a variety of different underlying conditions. It usually presents with neurological involvement; however, signs and symptoms of injury to the kidneys, myocardium and eyes can also be present. Hospitalization for intravenous treatment with antihypertensive(s) and close monitoring in an intensive care setting are required for these patients. Few studies in children with hypertensive emergency have been done in the last several years. The findings and observations of these studies are discussed in this review. PMID:24908135

Baracco, Rossana; Mattoo, Tej K

2014-08-01

463

Diabetic and endocrine emergencies  

PubMed Central

Endocrine emergencies constitute only a small percentage of the emergency workload of general doctors, comprising about 1.5% of all hospital admission in England in 2004–5. Most of these are diabetes related with the remaining conditions totalling a few hundred cases at most. Hence any individual doctor might not have sufficient exposure to be confident in their management. This review discusses the management of diabetic ketoacidosis, hyperosmolar hyperglycaemic state, hypoglycaemia, hypercalcaemia, thyroid storm, myxoedema coma, acute adrenal insufficiency, phaeochromocytoma hypertensive crisis and pituitary apoplexy in the adult population.

Kearney, T; Dang, C

2007-01-01

464

Searches at the Tevatron  

SciTech Connect

The CDF and D0 collider experiments at Fermilab have searched for evidence of physics beyond the Standard Model of particle physics. We report on the results of searches for extra heavy gauge bosons, quark-lepton compositeness, leptoquarks, and magnetic monopoles in p{bar p} collisions at {radical}s = 1.96 TeV. No evidence of new signals were found, therefore we derive limits on the model parameters.

Illingworth, Robert; /Fermilab

2005-06-01

465

Controlled Conspiracy Number Search  

Microsoft Academic Search

In this paper we present a new conspiracy number search algorithm (CNS), called ControlledConspiracy Number Search (CCNS). The basic steps of any CNS algorithm, theselection, the expansion, and the backup of results have been modified compared to otherCNS algorithms. The selection is done by assigning demands, so called CN targets, to thenodes of the tree in a top-down fashion. By

Ulf Lorenz; Valentin Rottmann; Rainer Feldmann

1995-01-01

466

Search Adobe PDF Online  

NSDL National Science Digital Library

According to Adobe, their search engine indexes over one million .pdf documents. The interface is clean and simple: a keyword search powered by AltaVista. Initial returns are listed with a brief description and a link to the full entry, which includes a summary, the title, author, date, size, estimated download time for a 56kbps modem, and of course, a link to the full text in .pdf format.

2000-01-01

467

Search for Public Schools  

NSDL National Science Digital Library

The National Center for Education Statistics (NCES) has updated its search tool for locating US public elementary and secondary schools (first discussed in the October 10, 1997 Scout Report). The newly designed National Public School and School District Locator now includes a separate search utility for locating school districts nationwide and allows users to identify the "correct name, address, telephone number, NCES ID number, urbanicity, and other student and teacher information for public schools or school districts."

Statistics., National C.

1998-01-01

468

Security during safety-related emergencies at nuclear power plants  

Microsoft Academic Search

Under a commission from the Office of Nuclear Regulatory Research, NRC, a study was performed by a team of analysts relative to licensing practices and the role of security as they relate to safeguards during safety-related emergencies (SREs). Methodology included a literature search, site visits to representative nuclear reactors and analysis of the regulatory and licensee planning bases. Problems relating

Moul

1984-01-01

469

The Emergence of Public Health Open Educational Resources  

ERIC Educational Resources Information Center

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…

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

2011-01-01

470

Nowcasting With Google Trends in an Emerging Market  

Microsoft Academic Search

Most economic variables are released with a lag, making it difficult for policy-makers to make an accurate assessment of current conditions. This paper explores whether observing Internet browsing habits can inform practitioners about real-time aggregate consumer behavior in an emerging market. Using data on Google search queries, we introduce a simple index of interest in automobile purchases in Chile and

Yan Carrière-Swallow; Felipe Labbé

2010-01-01

471

Soft computing: the convergence of emerging reasoning technologies  

Microsoft Academic Search

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

Piero P. Bonissone

1997-01-01

472

Quantum searching application in search based software engineering  

NASA Astrophysics Data System (ADS)

The Search Based Software Engineering (SBSE) is widely used in software engineering for identifying optimal solutions. However, there is no polynomial-time complexity solution used in the traditional algorithms for SBSE, and that causes the cost very high. In this paper, we analyze and compare several quantum search algorithms that could be applied for SBSE: quantum adiabatic evolution searching algorithm, fixed-point quantum search (FPQS), quantum walks, and a rapid modified Grover quantum searching method. The Grover's algorithm is thought as the best choice for a large-scaled unstructured data searching and theoretically it can be applicable to any search-space structure and any type of searching problems.

Wu, Nan; Song, FangMin; Li, Xiangdong

2013-05-01

473

Developing Automated Helicopter Models Using Simulated Annealing and Genetic Search  

Microsoft Academic Search

A heuristic technique is presented that applies simulated annealing search to derive mathematical equations that model a pilot for an X-CELL 60 helicopter. The technique uses a pre-defined alphabet of formulas and combines them to create a mathematical model of the system controller or pilot. The proposed technique provides a new tool that can be used to develop an accurate

Namir Aldawoodi; Rafael Perez; Kimon Valavanis; Wendy Alvis

474

Employing a Domain Specific Ontology to Perform Semantic Search  

Microsoft Academic Search

Increasing the relevancy of Web search results has been a major concern in research over the last years. Boolean search, metadata,\\u000a natural language based processing and various other techniques have been applied to improve the quality of search results\\u000a sent to a user. Ontology-based methods were proposed to refine the information extraction process but they have not yet achieved\\u000a wide

Maxime Morneau; Guy W. Mineau

2008-01-01

475

Harmonizing emergency management knowledge representation  

Microsoft Academic Search

Despite technological advances, the interoperability of the information and decision support systems of the various parties in the emergency and crisis management community remains a difficult task. The Finnish Emergency Response Center (ERC) is responsible for taking all emergency calls in any emergency. This operating model differs from the operating models in most countries, in that the ERC operators can

Petri Linna; Jari Leppäniemi; Jari Soini; Hannu Jaakkola

2009-01-01

476

WIPER: An Emergency Response System  

Microsoft Academic Search

This paper describes the WIPER system, a proof of concept prototype, and progress made on its development to date. WIPER is intended to provide emergency response managers with an integrated system that detects possible emergencies from cellular communication data, attempts to predict the development of emergency situations, and provides tools for evaluating possible courses of action in dealing with emergency

Alec Pawling; Tim Schoenharl; Ping Yan; Greg Madey

477

Understanding coordination in emergency response  

Microsoft Academic Search

This paper describes and discusses analysis of an emergency management exercise. In the exercise scenario, different emergency management organizations jointly try to cope with a forest fire and related incidents. The Extended Control Model is utilized for examination of the establishment of en emergent emergency response organization. Ambiguity in how functions are to be handled in a large event, indicating

Hedvig Aminoff; Björn Johansson; Jiri Trnka

478

Assessing School Emergency Care Preparedness.  

ERIC Educational Resources Information Center

A study assessed the emergency health care preparedness of a north central Florida public school district in light of seven criteria: (1) school policies regarding delivery of emergency health care; (2) identification of school personnel responsible for rendering emergency care; (3) training levels of emergency health care providers (first aid and…

Hale, Charles; Varnes, Jill

479

Neutral Supersymmetric Higgs Boson Searches  

SciTech Connect

In some Supersymmetric extensions of the Standard Model, including the Minimal Supersymmetric Standard Model (MSSM), the coupling of Higgs bosons to b-quarks is enhanced. This enhancement makes the associated production of the Higgs with b-quarks an interesting search channel for the Higgs and Supersymmetry at D0. The identification of b-quarks, both online and offline, is essential to this search effort. This thesis describes the author's involvement in the development of both types of b-tagging and in the application of these techniques to the MSSM Higgs search. Work was carried out on the Level-3 trigger b-tagging algorithms. The impact parameter (IP) b-tagger was retuned and the effects of increased instantaneous luminosity on the tagger were studied. An extension of the IP-tagger to use the z-tracking information was developed. A new b-tagger using secondary vertices was developed and commissioned. A tool was developed to allow the use of large multi-run samples for trigger studies involving b-quarks. Offline, a neural network (NN) b-tagger was trained combining the existing offline lifetime based b-tagging tools. The efficiency and fake rate of the NN b-tagger were measured in data and MC. This b-tagger was internally reviewed and certified by the Collaboration and now provides the official b-tagging for all analyses using the Run IIa dataset at D0. A search was performed for neutral MSSM Higgs bosons decaying to a b{bar b} pair and produced in association with one or more b-quarks. Limits are set on the cross-section times the branching ratio for such a process. The limits were interpreted in various MSSM scenarios. This analysis uses the NN b-tagger and was the first to use this tool. The analysis also relies on triggers using the Level-3 IP b-tagging tool described previously. A likelihood discriminant was used to improve the analysis and a neural network was developed to cross-check this technique. The result of the analysis has been submitted to PRL and is comparable to the result from CDF in the same channel which uses approximately twice the integrated luminosity.

Robinson, Stephen Luke; /Imperial Coll., London

2009-09-01

480

The Emerging Scholarly Brain  

NASA Astrophysics Data System (ADS)

It is now a commonplace observation that human society is becoming a coherent super-organism, and that the information infrastructure forms its emerging brain. Perhaps, as the underlying technologies are likely to become billions of times more powerful than those we have today, we could say that we are now building the lizard brain for the future organism.

Kurtz, Michael J.

481

Emerging foodborne pathogens  

Microsoft Academic Search

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

Robert V. Tauxe

2002-01-01

482

Fire Department Emergency Response  

SciTech Connect

In 1995 the SRS Fire Department published the initial Operations Basis Document (OBD). This document was one of the first of its kind in the DOE complex and was widely distributed and reviewed. This plan described a multi-mission Fire Department which provided fire, emergency medical, hazardous material spill, and technical rescue services.

Blanchard, A. [Westinghouse Savannah River Company, AIKEN, SC (United States); Bell, K.; Kelly, J.; Hudson, J.

1997-09-01

483

Emerging Technologies for Healthcare  

Microsoft Academic Search

The paper discusses integrating of current and emerging technologies with healthcare. These technologies can be used for prevention of diseases, enhancing healthcare access, efficient and accurate diagnostics, effective healthcare delivery, rehabilitation, healthcare information management, improving quality of life at all ages and many other features. In this paper, we discuss several aspects of healthcare and technologies including: ldr development of

M. Ilyas

2008-01-01

484

Emergency extraction device design  

Microsoft Academic Search

The objective of this research was to develop a device to transport an injured visitor down the spiral staircase to the pedestal where more conventional rescues apprautus can be used. Working with the National Parks Service (NPS), we looked to improve upon the current rescue system the Emergency Medical Service (EMS) Rangers use. The end result will be a lightweight

Nicholas Reisweber

2010-01-01

485

Wireless Emergency Alerts  

MedlinePLUS

... Does WEA know where I am? Is it tracking me? No. Just like emergency weather alerts you see on local TV, WEAs are broadcast from area cell towers to mobile devices in the area. Every WEA-capable phone within range receives the message, just like TV ...

486

The Emerging Information Society.  

ERIC Educational Resources Information Center

Focuses on role of library and agencies charged with provision of information in an environment of technological change. Predictions concerning aspects of the emerging information society (computer literacy, home computers), the death of libraries, and effects of a paperless society on libraries in developing countries are noted. Footnotes are…

Ochai, Adakole

1984-01-01

487

Emergency shutdown system  

SciTech Connect

Exacting requirements apply to equipment used in emergency shutdown systems. This paper describes a recent application using redundant programmable logic controllers that does the following: provides on-line diagnostic checking of input/output devices; verifies operational response of shutdown logic; reduces the probability of a fail dangerous condition; and reduces false trips to rare events.

Sikora, D.S. (Engineering Dept., E. I. du Pont de Nemours and Co., Newark, DE (US)); Jones, R.L. (E. I. du Pont de Nemours and Co., Orange, TX (US))

1991-03-01

488

Emerging geothermal energy technologies  

Microsoft Academic Search

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

I. W. Johnston; S. Colls

2011-01-01