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1

Semi-automatic Compilation of Bilingual Lexicon Entries from Cross-Lingually Relevant News Articles on WWW News Sites  

Microsoft Academic Search

For the purpose of overcoming resource scarcity bottleneck in corpus-based translation knowledge acquisition research, this\\u000a paper takes an approach of semi-automatically acquiring domain specific translation knowledge from the collection of bilingual\\u000a news articles on WWW news sites. This paper presents results of applying standard co-occurrence frequency based techniques\\u000a of estimating bilingual term correspondences from parallel corpora to relevant article pairs

Takehito Utsuro; Takashi Horiuchi; Yasunobu Chiba; Takeshi Hamamoto

2002-01-01

2

KMi Planet: A Web Based News Server  

Microsoft Academic Search

We describe KMi Planet, a web based news server which facilitates communication within a our laboratory and allows the wider community to access lab-related items of interest. Unlike most news-of-the-future projects, which focus on personalised newsfeeds, we have concentrated on replicating some of the functionality provided by newsrooms. Our goal was to reduce the article submission overheads for the members

John Domingue; Peter Scott

1998-01-01

3

Gray-based news video text extraction approach  

Microsoft Academic Search

In the news video, As a high-level semantic features, video text play a crucial role for the semantics understanding, video analysis, quick video clips retrieval of news video. We propose a new video character extraction method that is gray-based. It makes full use of gray information of the video image and the news video text features to detect the video

Fu Xiaoling; Gao Hua

2010-01-01

4

Automatic indexing of news video for content-based retrieval  

NASA Astrophysics Data System (ADS)

Since it is impossible to automatically parse a general video, we investigated an integrated solution for the content-based news video indexing and the retrieval. Thus, a specific structural video such as news video is parsed, because it is included both temporal and spatial characteristics that the news event with an anchor-person is iteratively appeared, a news icon and a caption are involved in some frame, respectively. To extract automatically the key frames by using the structured knowledge of news, the model used in this paper is consisted of the news event segmentation, caption recognition and search browser module. The following are three main modules represented in this paper: (1) The news event segmentation module (NESM) for both the recognition and the division of an anchor-person shot. (2) The caption recognition module (CRM) for the detection of the caption-frames in a news event, the extraction of their caption region in the frame by using split-merge method, and the recognition of the region as a text with OCR software. 3) The search browser module (SBM) for the display of the list of news events and news captions, which are included in selected news event. However, the SBM can be caused various searching mechanisms.

Yang, Myung-Sup; Yoo, Cheol-Jung; Chang, Ok-Bae

1998-06-01

5

Content-based news video story segmentation and video retrieval  

NASA Astrophysics Data System (ADS)

In this paper, we first divide the basic structure of news video databases system, the system is developed for content- based broadcast news video browsing, and users can use this system to find the news story what they want to see quickly. And then we introduce the basic ideas of key techniques - text extraction and speech recognition, etc, which realize news video story segmentation and video retrieval. In this article, first, we use image analysis technology to detect the frames that contain the texts or the close captions, and we use the video OCR technology to detect the texts of these frames, which provides a good source of textual information for story segmentation and classification. The speech digital processing technology is used to extract the voice texts of the anchorperson and also used to classify the stories that are segmented from the news video. At last, we give typical experiment results.

Liu, Huayong; Zhou, Dongru

2002-07-01

6

Efficient Tracking of News Topics Based on Chronological Semantic Structures in a Large-Scale News Video Archive  

NASA Astrophysics Data System (ADS)

Recent advance in digital storage technology has enabled us to archive a large volume of video data. Thanks to this trend, we have archived more than 1,800 hours of video data from a daily Japanese news show in the last ten years. When considering the effective use of such a large news video archive, we assumed that analysis of its chronological and semantic structure becomes important. We also consider that providing the users with the development of news topics is more important to help their understanding of current affairs, rather than providing a list of relevant news stories as in most of the current news video retrieval systems. Therefore, in this paper, we propose a structuring method for a news video archive, together with an interface that visualizes the structure, so that users could track the development of news topics according to their interest, efficiently. The proposed news video structure, namely the “topic thread structure”, is obtained as a result of an analysis of the chronological and semantic relation between news stories. Meanwhile, the proposed interface, namely “mediaWalker II”, allows users to track the development of news topics along the topic thread structure, and at the same time watch the video footage corresponding to each news story. Analyses on the topic thread structures obtained by applying the proposed method to actual news video footages revealed interesting and comprehensible relations between news topics in the real world. At the same time, analyses on their size quantified the efficiency of tracking a user's topic-of-interest based on the proposed topic thread structure. We consider this as a first step towards facilitating video authoring by users based on existing contents in a large-scale news video archive.

Ide, Ichiro; Kinoshita, Tomoyoshi; Takahashi, Tomokazu; Mo, Hiroshi; Katayama, Norio; Satoh, Shin'ichi; Murase, Hiroshi

7

Chemistry Is in the News: Taxonomy of authentic news media?based learning activities1  

Microsoft Academic Search

A brief history is given of approaches that aim at achieving a connectedness of the content of organic chemistry courses to real world issues. Recently, such approaches have relied more and more on online media resources, the tools of the Internet and the World Wide Web. We propose a six?level taxonomy of ‘authentic news media?based learning activities’ to provide a

Rainer E. Glaser; Kathleen M. Carson

2005-01-01

8

"Chemistry Is in the News": Taxonomy of Authentic News Media-Based Learning Activities. Research Report  

ERIC Educational Resources Information Center

A brief history is given of approaches that aim at achieving a connectedness of the content of organic chemistry courses to real world issues. Recently, such approaches have relied more and more on online media resources, the tools of the Internet and the World Wide Web. We propose a six-level taxonomy of 'authentic news media-based learning…

Glaser, Rainer E.; Carson, Kathleen M.

2005-01-01

9

News  

NASA Astrophysics Data System (ADS)

Belfast: On the next level above Galileo Wales: 2nd All Wales Physics Teachers Meeting England: Good afternoon Natural Philosphers... Communication: Posters win prizes Careers: Physics On Course 2004 Visits: Refreshing Physics Sport: Cheating at baseball Physics on Stage: Polish performance Space: Forces that affect GPS satellites New Zealand: It’s not All Black News these days New Initiatives: NOISE Physics on Stage 3: Lively stars heading for ESA

2003-09-01

10

News  

NASA Astrophysics Data System (ADS)

AWARDS Presentations to top students; PHYSICS IN PRIMARY SCIENCE Amaze and inspire; WEB RESOURCES PhysicsClub goes live; EVENTS GIREP develops thinking; RESEARCH FRONTIERS Carbon dating may not run to time; CURRICULUM DEVELOPMENT Vocational qualifications; CURRICULUM DEVELOPMENT Flanders gears up for curriculum change; EXHIBITIONS Building the Universe; EVENTS Physics Discipline Network VII; SPECIAL NEWS FEATURE Progress in UK post-16 courses; Teaching Advancing Physics... the story so far; An outside observer's view of Advancing Physics; Student views of SHAP; Results from the SHAP pilot: successful and girl-friendly; AWARDS Royal visit to publisher;

2001-07-01

11

FarFetch--an Internet-based sequence entry server.  

PubMed

This communication is to announce the availability of a network server for biological sequence database entries which will allow scientists to fetch entries in a desired format directly into their file store. This server will use TCP/IP protocols allowing any user with an Internet connection to participate. FarFetch will allow users to obtain sequence entries in a directly usable form as opposed to conventional e-mail based sequence retrievers. This server also differs from Gopher and WAIS servers in that the sequence entry is written into the user's file store in a format that is immediately usable. Clients for the OpenVMS, Unix and Macintosh operating systems have been written and are available via anonymous ftp. Development of MS-DOS and Windows clients is planned. There will be no usage fees associated with the server. PMID:8019871

Gilbert, W A

1994-04-01

12

COM-based scene segmentation in news video  

NASA Astrophysics Data System (ADS)

Scene segmentation in digital video plays important role in content-based video indexing. This paper uses the techniques of text detection and audio features extraction, etc, discusses scene segmentation in news video from the point of combination of audio and video, and puts forward a COM-based method to realize the scene segmentation. The experiments prove that the method proposed in this paper is effective.

Liu, Huayong; Zhou, Dongru; Zhang, Hui

2005-11-01

13

Engineering graphics data entry for space station data base  

NASA Technical Reports Server (NTRS)

The entry of graphical engineering data into the Space Station Data Base was examined. Discussed were: representation of graphics objects; representation of connectivity data; graphics capture hardware; graphics display hardware; site-wide distribution of graphics, and consolidation of tools and hardware. A fundamental assumption was that existing equipment such as IBM based graphics capture software and VAX networked facilities would be exploited. Defensible conclusions reached after study and simulations of use of these systems at the engineering level are: (1) existing IBM based graphics capture software is an adequate and economical means of entry of schematic and block diagram data for present and anticipated electronic systems for Space Station; (2) connectivity data from the aforementioned system may be incorporated into the envisioned Space Station Data Base with modest effort; (3) graphics and connectivity data captured on the IBM based system may be exported to the VAX network in a simple and direct fashion; (4) graphics data may be displayed site-wide on VT-125 terminals and lookalikes; (5) graphics hard-copy may be produced site-wide on various dot-matrix printers; and (6) the system may provide integrated engineering services at both the engineering and engineering management level.

Lacovara, R. C.

1986-01-01

14

Orion Entry Performance-Based Center-of-Gravity Box  

NASA Technical Reports Server (NTRS)

The Orion capsule is designed both for Low Earth Orbit missions to the ISS and for missions to the moon. For ISS class missions, the capsule will use an Apollo-style direct entry. For lunar return missions, depending on the timing of the mission, the capsule could perform a direct entry or a skip entry of up to 4800 n.mi. in order to land in the coastal waters of California. The physics of atmospheric re-entry determine the capability of the Orion vehicle. For a given vehicle mass and shape, physics tells us that the driving parameters for an entry vehicle are the hypersonic lift-to-drag ratio (L/D) and the flight path angle at entry interface (gamma(sub EI)). The design of the Orion atmospheric re-entry must meet constraints during both nominal and dispersed flight conditions on landing accuracy, heating rate, total heat load, sensed acceleration, and proper disposal of the Service Module. These constraints define an entry corridor in the space of L/D-gamma(sub EI); if the vehicle falls within this corridor, then all constraints are met. The gamma(sub EI) dimension of the corridor can be further constrained by the gloads experienced during emergency entries. Thus, the entry performance for the Orion vehicle can be described completely by the L/D. Bounds on the hypersonic L/D necessary to achieve all the mission requirements can be defined for the given entry corridor. Landing accuracy performance drives the lower limit on L/D. In order to achieve the desired landing accuracy, a minimum L/D must be ensured. The design of the Thermal Protection System (TPS) drives the upper limit on L/D. A higher L/D can drive mass into the design of the TPS. Conversely, once the TPS is designed, the L/D must be ensured to stay below a certain limit in order for the TPS to stay within its design envelop. The L/D must stay within its upper and lower bounds during dispersed flight conditions. L/D is a function of both the aerodynamics and the center-of-gravity (CG) of the vehicle. The aerodynamics of the vehicle are determined by Computational Fluid Mechanics (CFD) and wind tunnel tests. However, the aerodynamics are not known precisely. Instead, an aerodynamic database has been developed where the aerodynamic coefficients are known to fall within a probabilistic band defined by upper and lower bounds. It is expected that the probabilistic band will shrink after the first missions are flown and real-world data is collected. Until that time, the Orion must be designed to the current aerodynamic database. Thus, for a given aerodynamic database with given uncertainties, the allowable range in L/D can be mapped to an allowable box for the CG location. The CG box is used to set requirements on the dispersions allowed for vehicle packaging and cargo storage. As the aerodynamic uncertainties decrease, the size of the CG box can increase. This paper discusses the technique used to map the minimum and maximum L/D bounds set by the entry performance requirements to the allowable dispersions in CG while accounting for aerodynamic uncertainties. The L/D is defined as the ratio of the lift force to the drag force. It is equivalent to the ratio of lift coefficient (C(sub L)) over drag coefficient (C(sub D)). C(sub L) and C(sub D) are functions of Mach number (M) and angle of attack (alpha). A Mach number of 25 is used as a measuring point of the hypersonic L/D. Variations in C(sub L), C(sub D) and alpha cause variations in L/D. Equation (1) shows the three contributions to the variation in L/D.

Rea, Jeremy R.

2010-01-01

15

TV news story segmentation based on a simple statistical model  

NASA Astrophysics Data System (ADS)

TV News is a well-structured media, since it has distinct boundaries of semantic units (news stories) and relatively constant content structure. Hence, an efficient algorithm to segment and analyze the structure information among news videos would be necessary for indexing or retrieving a large video database. Lots of researches in this area have been done by using close-caption, speech recognition or Video-OCR to obtain the semantic content, however, these methods put much emphasis on obtaining the text and NLP for semantic understanding. Here, in this paper, we try to solve the problem by integrating statistic model and visual features. First, a video caption and anchorperson shot detection method is presented, after that, a statistic model is used to describe the relationship between the captions and the news story boundaries, then, a news story segmentation method is introduced by integrating all these aforementioned results. The experiment results have proved that the method can be used in acquiring most of the structure information in News programs.

Lu, Xiaoye; Feng, Zhe; Zhu, Xingquan; Wu, Lide

2001-12-01

16

Exploring Edge-Based Input Techniques for Handheld Text Entry  

Microsoft Academic Search

We are investigating how handheld devices like Palm PDAs and PocketPCs can be used as assistive technologies for computer access by people with motor impairments such as Muscular Dystrophy and Cerebral Palsy. As part of this research, we are developing new input techniques for handheld text entry. People with motor impairments suffer from symptoms that affect their ability to use

Jacob O. Wobbrock; Brad A. Myers; Scott E. Hudson

2003-01-01

17

Orion Entry Performance-Based Center-of-Gravity Box.  

National Technical Information Service (NTIS)

The Orion capsule is designed both for Low Earth Orbit missions to the ISS and for missions to the moon. For ISS class missions, the capsule will use an Apollo-style direct entry. For lunar return missions, depending on the timing of the mission, the caps...

J. R. Rea

2010-01-01

18

Assisted entry mitigates text messaging-based driving detriment.  

PubMed

Previous research using cell phones indicates that manual manipulation is not a principal component of text messaging relating driving detriment. This paper suggests that manipulation of a phone in conjunction with the cognitive need to compose the message itself co-act to contribute to driving degradation. This being so, drivers sending text messages might experience reduced interference to the driving task if the text messaging itself were assisted through the predictive T9 system. We evaluated undergraduate drivers in a simulator who drove and texted using either Assisted Text entry, via Nokia's T9 system, or unassisted entry via the multitap interface. Results supported the superiority of the T9 system over the multitap system implying that specific assistive technologies can modulate the degradation of capacity which texting tragically induces. PMID:22317377

Sawyer, Benjamin D; Hancock, Peter A

2012-01-01

19

InfoSlim: An Ontology-Content Based Personalized Mobile News Recommendation System  

Microsoft Academic Search

This paper proposes a novel personalized news recommendation system named InfoSlim. The new system uses semantic technique to annotate news items and user preference in order to add rich metadata information into traditional keyword vector. By doing this, the similarity measure between item profile and user profile can be done by not only lexical-level cosine-based method but also by semantic-level

Feng Gao; Yuhong Li; Li Han; Jian Ma

2009-01-01

20

Beale Air Force Base, Perimeter Acquisition Vehicle Entry PhasedArray Warning ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Beale Air Force Base, Perimeter Acquisition Vehicle Entry Phased-Array Warning System, Satellite Communications Terminal, End of Spencer Paul Road, north of Warren Shingle Road (14th Street), Marysville, Yuba County, CA

21

Beale Air Force Base, Perimeter Acquisition Vehicle Entry PhasedArray Warning ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Beale Air Force Base, Perimeter Acquisition Vehicle Entry Phased-Array Warning System, Electric Substation, End of Spencer Paul Road, north of Warren Shingle Road (14th Street), Marysville, Yuba County, CA

22

Structure-based design, synthesis and validation of CD4-mimetic small molecule inhibitors of HIV-1 entry: conversion of a viral entry agonist to an antagonist.  

PubMed

This Account provides an overview of a multidisciplinary consortium focused on structure-based strategies to devise small molecule antagonists of HIV-1 entry into human T-cells, which if successful would hold considerable promise for the development of prophylactic modalities to prevent HIV transmission and thereby alter the course of the AIDS pandemic. Entry of the human immunodeficiency virus (HIV) into target T-cells entails an interaction between CD4 on the host T-cell and gp120, a component of the trimeric envelope glycoprotein spike on the virion surface. The resultant interaction initiates a series of conformational changes within the envelope spike that permits binding to a chemokine receptor, formation of the gp41 fusion complex, and cell entry. A hydrophobic cavity at the CD4-gp120 interface, defined by X-ray crystallography, provided an initial site for small molecule antagonist design. This site however has evolved to facilitate viral entry. As such, the binding of prospective small molecule inhibitors within this gp120 cavity can inadvertently trigger an allosteric entry signal. Structural characterization of the CD4-gp120 interface, which provided the foundation for small molecule structure-based inhibitor design, will be presented first. An integrated approach combining biochemical, virological, structural, computational, and synthetic studies, along with a detailed analysis of ligand binding energetics, revealed that modestly active small molecule inhibitors of HIV entry can also promote viral entry into cells lacking the CD4 receptor protein; these competitive inhibitors were termed small molecule CD4 mimetics. Related congeners were subsequently identified with both improved binding affinity and more potent viral entry inhibition. Further assessment of the affinity-enhanced small molecule CD4 mimetics demonstrated that premature initiation of conformational change within the viral envelope spike, prior to cell encounter, can lead to irreversible deactivation of viral entry machinery. Related congeners, which bind the same gp120 site, possess different propensities to elicit the allosteric response that underlies the undesired enhancement of CD4-independent viral entry. Subsequently, key hotspots in the CD4-gp120 interface were categorized using mutagenesis and isothermal titration calorimetry according to the capacity to increase binding affinity without triggering the allosteric signal. This analysis, combined with cocrystal structures of small molecule viral entry agonists with gp120, led to the development of fully functional antagonists of HIV-1 entry. Additional structure-based design exploiting two hotspots followed by synthesis has now yielded low micromolar inhibitors of viral entry. PMID:24502450

Courter, Joel R; Madani, Navid; Sodroski, Joseph; Schön, Arne; Freire, Ernesto; Kwong, Peter D; Hendrickson, Wayne A; Chaiken, Irwin M; LaLonde, Judith M; Smith, Amos B

2014-04-15

23

Fuzzy logic based full-envelope autonomous flight control for an atmospheric re-entry spacecraft  

Microsoft Academic Search

An intelligent and autonomous flight control system for an atmospheric re-entry vehicle is investigated, based on fuzzy logic control and aerodynamic inversion computation. A common PD-Mamdani fuzzy logic controller is designed for all the five re-entry flight regions characterized by different actuator configurations. A linear transformation to the controller inputs is applied to tune the controller performance for different flight

S.-F. Wu; C. J. H. Engelen; R. Babuška; Q.-P. Chu; J. A. Mulder

2003-01-01

24

Development and Evaluation of Automatic Speaker based- Audio Identification and Segmentation for Broadcast News Recordings Indexation  

Microsoft Academic Search

In this paper, we describe an automatic- speaker based- audio segmentation and identification system for broadcasted news indexation purposes. We specifically focus on speaker identification and audio scene detection. Speaker identification (SI) is based on the state of the art Gaussian mixture models, whereas scene change detection process uses the classical Bayesian Information Criteria (BIC) and the recently proposed DISTBIC

Messaoud Bengherabi; Abdenour Sehad

2006-01-01

25

HMM-based sliding video text recognition for Turkish broadcast news  

Microsoft Academic Search

In this paper, we develop an HMM-based sliding video text recognizer and present our results on Turkish broadcast news for the hearing impaired. We use well known speech recognition techniques to model and recognize sliding video text characters using a minimal amount of labeled data. Baseline system without any language modeling gives a word error rate of 2.2% on 138

Temucin Som; Dogan Can; Murat Saraclar

2009-01-01

26

Figuring Out Health News  

MedlinePLUS

... reports often focus on people's personal stories, not scientific studies. Personal stories are interesting, but often they don' ... is whether the news is based on a scientific study. Knowing there's a study behind the news is ...

27

Activities Coordinator. A Competency-Based Curriculum Designed To Prepare Students for Entry-Level Employment.  

ERIC Educational Resources Information Center

This curriculum was developed to assist instructors in planning and implementing a comprehensive, competency-based activities program to teach students skills for entry-level jobs as activities coordinators in nursing homes or extended-care facilities for older persons. The guide contains instructional units for each task listed on the job…

Vocational Curriculum Resource Center of Maine, Fairfield.

28

Quality of Data Entry Using Single Entry, Double Entry and Automated Forms Processing–An Example Based on a Study of Patient-Reported Outcomes  

Microsoft Academic Search

BackgroundThe clinical and scientific usage of patient-reported outcome measures is increasing in the health services. Often paper forms are used. Manual double entry of data is defined as the definitive gold standard for transferring data to an electronic format, but the process is laborious. Automated forms processing may be an alternative, but further validation is warranted.Methods200 patients were randomly selected

Aksel Paulsen; Søren Overgaard; Jens Martin Lauritsen

2012-01-01

29

Computer-based physician order entry: the state of the art.  

PubMed Central

Direct computer-based physician order entry has been the subject of debate for over 20 years. Many sites have implemented systems successfully. Others have failed outright or flirted with disaster, incurring substantial delays, cost overruns, and threatened work actions. The rationale for physician order entry includes process improvement, support of cost-conscious decision making, clinical decision support, and optimization of physicians' time. Barriers to physician order entry result from the changes required in practice patterns, roles within the care team, teaching patterns, and institutional policies. Key ingredients for successful implementation include: the system must be fast and easy to use, the user interface must behave consistently in all situations, the institution must have broad and committed involvement and direction by clinicians prior to implementation, the top leadership of the organization must be committed to the project, and a group of problem solvers and users must meet regularly to work out procedural issues. This article reviews the peer-reviewed scientific literature to present the current state of the art of computer-based physician order entry.

Sittig, D F; Stead, W W

1994-01-01

30

eFinancial News  

NSDL National Science Digital Library

eFinancial News is the Web-based version of the reputable print publication Financial News, one of the leading sources of news and information about investment banking, securities, and fund management in Europe. Along with much of the content from Financial News, the site also contains a news service of up-to-date securities news and information. The most current news stories are posted on the main page, and subject-specific news sections are available on the left side of the screen. After a painless, free registration, users have access to the content of the entire site, including a searchable archive of past feature articles; People Moves, a "comprehensive database of industry job moves"; and career information. Registered users may also choose to sign up for a variety of email alerts.

31

Maintaining a News Perspective Remotely through Online Information Retrieval: Task-Based Web Experiences of Foreign News Correspondents  

ERIC Educational Resources Information Center

A two-stage mixed methods approach was used to examine how foreign correspondents stationed in the United States use World Wide Web technology to maintain their news perspectives remotely. Despite emerging technology playing an increasingly significant role in the production of international journalism, the subject under investigation has been…

Lin, Kuanyuh Tony

2009-01-01

32

Can Fluoroscopy-based Computer Navigation Improve Entry Point Selection for Intramedullary Nailing of Femur Fractures?  

PubMed

BACKGROUND: The entry point is crucial to an accurate reduction in femoral nailing. Fluoroscopy-based navigation was developed to aid in reducing femur fractures and selecting entry points. QUESTIONS/PURPOSES: We asked: (1) Can the piriformis fossa (PF) and tip of the greater trochanter (TT) be identified with high reproducibility? (2) What is the range of nonneutral images clinically acceptable for entry point selection? (3) Does navigation improve accuracy and precision of landmarking the TT and PF? And (4) does off-angle fluoroscopy within the acceptable range affect landmark accuracy? METHODS: Three orthopaedic surgeons digitized the PF and TT under direct visualization on 10 cadaveric femurs, quantifying the reproducibility of the targeted PF and TT landmarks. Arcs of acceptable AP and lateral images of each femur were acquired in increments of 5° with a C-arm. An experienced orthopaedic surgeon rejected or accepted images for entry point selection by qualitatively assessing the relative positions and sizes of the greater trochanter, lesser trochanter, and femoral neck. Entry points were identified on each image using fluoroscopy and navigation. Hierarchical linear modeling was used to compare accuracy and precision between navigation and fluoroscopy and the effects of image angle. RESULTS: A 29° average arc of acceptable images was found. Reproducibility of the target landmarks for the PF and TT under direct visualization was excellent. Navigation had similar accuracy to fluoroscopy for PF localization but less for TT. Navigation increased precision compared to fluoroscopy for both PF and TT. Image angle affected accuracy of the PF and TT under fluoroscopy and navigation. CONCLUSIONS: Nonorthogonal images reduce accuracy of PF and TT identification with both navigation and fluoroscopy. Navigation increased precision but decreased accuracy and cannot overcome inaccuracies induced by nonorthogonal images. PMID:23460484

Crookshank, Meghan C; Edwards, Max R; Sellan, Michael; Whyne, Cari M; Schemitsch, Emil H

2013-03-01

33

Simulation-Based Analysis of Reentry Dynamics for the Sharp Atmospheric Entry Vehicle  

NASA Technical Reports Server (NTRS)

This thesis describes the analysis of the reentry dynamics of a high-performance lifting atmospheric entry vehicle through numerical simulation tools. The vehicle, named SHARP, is currently being developed by the Thermal Protection Materials and Systems branch of NASA Ames Research Center, Moffett Field, California. The goal of this project is to provide insight into trajectory tradeoffs and vehicle dynamics using simulation tools that are powerful, flexible, user-friendly and inexpensive. Implemented Using MATLAB and SIMULINK, these tools are developed with an eye towards further use in the conceptual design of the SHARP vehicle's trajectory and flight control systems. A trajectory simulator is used to quantify the entry capabilities of the vehicle subject to various operational constraints. Using an aerodynamic database computed by NASA and a model of the earth, the simulator generates the vehicle trajectory in three-dimensional space based on aerodynamic angle inputs. Requirements for entry along the SHARP aerothermal performance constraint are evaluated for different control strategies. Effect of vehicle mass on entry parameters is investigated, and the cross range capability of the vehicle is evaluated. Trajectory results are presented and interpreted. A six degree of freedom simulator builds on the trajectory simulator and provides attitude simulation for future entry controls development. A Newtonian aerodynamic model including control surfaces and a mass model are developed. A visualization tool for interpreting simulation results is described. Control surfaces are roughly sized. A simple controller is developed to fly the vehicle along its aerothermal performance constraint using aerodynamic flaps for control. This end-to-end demonstration proves the suitability of the 6-DOF simulator for future flight control system development. Finally, issues surrounding real-time simulation with hardware in the loop are discussed.

Tillier, Clemens Emmanuel

1998-01-01

34

Distributed algorithm for K-entries to critical section based on the directed graphs  

Microsoft Academic Search

This paper proposes a token based mutual exclusion algorithm for distributed systems that allows K simultaneous entries to a critical section. In the algorithm, a logical directed graph is maintained in a connected network.This algorithm does not use sequence numbers, and the number of messages required to provide mutual exclusion, is between 0 and 2*(N-l) where N is the number

Mohamed Naimi

1993-01-01

35

An experimental news production system with flexible role-based access control  

Microsoft Academic Search

The rapid development of information technology has sped up the production of digital news media. An effective news production system plays an important role in improving workflow efficiency of the production via computer support collaborative work. However, most news production systems developed today target for on-line news web publishing and usually are tailored to a specific organization. In this paper,

Min-che Ho; Tsai-yen Li

2005-01-01

36

Global Warming News Zone  

NSDL National Science Digital Library

This news page, provided by space.com, posts news stories and other current information related to global warming. Touching on topics ranging from industrial pollution to jet contrails to glacier meltings, this Website attempts to centralize news about many of the recent advances in our understanding of global warming. In many cases, news articles mention the scientific resource(s) upon which the findings are based, serving as a helpful hint for readers wishing to delve deeper into the science behind the news story.

1999-01-01

37

The news about Vienna Atomic Line Data Base  

NASA Astrophysics Data System (ADS)

We describe the main changes in the ``Vienna Atomic Line Data Base'' (VALD, Piskunov et al., 1995 and Piskunov, 1996) that have been made since the first release in 1994. The original VALD lists have been complemented with critically evaluated data obtained from experimental measurements and theoretical calculations which are necessary for computing state-of-the-art line opacities in stellar atmospheres, as well as for spectral synthesis for high precision studies (e.g. abundances, radial velocities etc.). In this paper we present new and improved data sets for chemical elements that have already been included in VALD, for new elements and for additional higher ionized species. Software modifications allow remote users of VALD to specify individual extraction parameters as an alternative to the default settings of the VALD team and to have direct control over the quality ranking of line data. The new World--Wide--Web interface provides easy access to all new features. The support for the mirror site permitted opening of two additional VALD servers at Hoddard Space Flight Center (USA) and at Uppsala Astronomical Observatory (Sweden). For proper crediting of all authors of atomic data, VALD now includes a compilation of all publications used to any replies.

Piskunov, N.; Ryabchikova, T. A.; Weiss, W. W.

38

Rapid deployment of physician order entry using web-based, disease-specific order sets.  

PubMed

Computerized physician order entry (POE) is a disruptive technology that holds great promise to reduce medical errors and improve workflow. However, Studies have reported significant physician resistance. This presentation will describe a two-pronged strategy to build broad support for POE: To build a secure, open source, browser-based platform to support POE and create a large number of disease-specific order-sets for immediate use. This presentation will demonstrate the conceptual framework and implementation requirements for such an endeavor. PMID:14728582

Windle, John; Van-Milligan, Glen; Duffy, Sean; McClay, James; Campbell, James

2003-01-01

39

DCTD — News & Events  

Cancer.gov

Skip to Content Click here to view the Site Map Home | Sitemap | Contact DCTD Search this site News & Events 2014 News 2013 News 2012 News 2011 News 2010 News 2009 News 2008 News 2007 News 2006 News 2005 News DCTD Programs Cancer Diagnosis Program Cancer

40

Development News: World Bank  

NSDL National Science Digital Library

Development News, or DevNews, is the World Bank's daily Web-based newsletter. Available in English, French, and Spanish, DevNews offers feature stories on recent advances and challenges in world development. The newsletter also links to a daily summary of approved loans, speeches given by World Bank officials, an events calendar, and World Bank press releases. Articles from February 1999 to the present can be found in the free archive.

41

Web-based physician order entry: an open source solution with broad physician involvement.  

PubMed

Computerized physician order entry (CPOE) is a disruptive technology but holds great promise for reducing medical errors, improving workflow and in the long run, producing cost-savings. However, many studies have reported significant physician resistance to implementing CPOE. In this manuscript we present a two-prong strategy for quick implementation of CPOE: 1) a web-based deployment tool using an open source, secure environment that allows rapid development and deployment of content, and 2) the development of a large set of disease specific order sets and knowledge bases based on established vocabulary standards such as LOINC and SNOMED CT by teams of multidisciplinary content experts at the departmental level. The order sets can be viewed, edited and signed through a standard browser interface. This paper presents the conceptual framework and implementation requirements for such an endeavor. PMID:14728268

Windle, John; Van-Milligan, Glen; Duffy, Sean; McClay, James; Campbell, James

2003-01-01

42

Structure-Based Design and Synthesis of an HIV-1 Entry Inhibitor Exploiting X-ray and Thermodynamic Characterization  

PubMed Central

The design, synthesis, thermodynamic and crystallographic characterization of a potent, broad spectrum, second-generation HIV-1 entry inhibitor that engages conserved carbonyl hydrogen bonds within gp120 has been achieved. The optimized antagonist exhibits a submicromolar binding affinity (110 nM) and inhibits viral entry of clade B and C viruses (IC50 geometric mean titer of 1.7 and 14.0 ?M, respectively), without promoting CD4-independent viral entry. The thermodynamic signatures indicate a binding preference for the (R,R)- over the (S,S)-enantiomer. The crystal structure of the small-molecule/gp120 complex reveals the displacement of crystallographic water and the formation of a hydrogen bond with a backbone carbonyl of the bridging sheet. Thus, structure-based design and synthesis targeting the highly conserved and structurally characterized CD4–gp120 interface is an effective tactic to enhance the neutralization potency of small-molecule HIV-1 entry inhibitors.

2013-01-01

43

Analyzing the Appropriateness of Internet-Based School News Programs for Social Studies Classrooms: "CNN Student News" as a Case Study  

ERIC Educational Resources Information Center

This article describes a research study on the appropriateness for social studies classrooms of "CNN Student News," a free online news program specifically aimed at middle and high school students. The author conducted a content analysis of "CNN Student News" during October 2012 and evaluated the program's content for…

Journell, Wayne

2014-01-01

44

Port of Entry: Water Quality  

NSDL National Science Digital Library

Port of Entry is a bilingual (Spanish and English) business network for the environmental sector. Its objective is to promote innovation in environmental policies and technologies through professional exchange. The water quality section of the site contains technical articles, news releases, regulatory information, case studies, and industry developments.

Inc., Port O.

45

A PIV-based method for estimating slamming loads during water entry of rigid bodies  

NASA Astrophysics Data System (ADS)

Hydrodynamic impact of bodies onto the water surface is a problem of great importance in the design of off-shore and naval structures (wave energy converters, off-shore platforms, high-speed boats, etc). Classical measurement techniques, namely pressure sensors, present major drawbacks in the determination of impact loads because of their intrusive nature. In this paper, we propose a method to determine the impact loads on rigid bodies during water entry, based on high-speed particle image velocimetry. The method consists of two steps: firstly, an automated procedure is developed to determine the velocity field from high-speed images during water impact. Secondly, the unsteady pressure field is estimated from the velocity fields, using a Poisson-based solver. The method is validated on a rigid wedge slamming experiment and the results are compared with results from computational fluid dynamics simulations (performed with the software LS-Dyna) and from the literature.

Nila, A.; Vanlanduit, S.; Vepa, S.; Van Paepegem, W.

2013-04-01

46

A Preference Cluster Management Method based on User Access\\/Non-viewed Logs for Personal Online News Delivery toward Portable Terminals  

Microsoft Academic Search

We examine online news delivery toward portable terminals that recommends the news article that adapts to a user preference based on user access logs. Based on the hypothesis that multiple user interests can be obtained from user access logs, we proposed the new method of the preference management using the following technique; extraction of multiple user preferences by clustering articles

Kazuhiro OTSUKI; Gen HATTORI; Haruo HOSHINO; Kazunori MATSUMOTO; Fumiaki SUGAYA

47

ISWI remodelers slide nucleosomes with coordinated multi-base-pair entry steps and single-base-pair exit steps.  

PubMed

ISWI-family enzymes remodel chromatin by sliding nucleosomes along DNA, but the nucleosome translocation mechanism remains unclear. Here we use single-molecule FRET to probe nucleosome translocation by ISWI-family remodelers. Distinct ISWI-family members translocate nucleosomes with a similar stepping pattern maintained by the catalytic subunit of the enzyme. Nucleosome remodeling begins with a 7 bp step of DNA translocation followed by 3 bp subsequent steps toward the exit side of nucleosomes. These multi-bp, compound steps are comprised of 1 bp substeps. DNA movement on the entry side of the nucleosome occurs only after 7 bp of exit-side translocation, and each entry-side step draws in a 3 bp equivalent of DNA that allows three additional base pairs to be moved to the exit side. Our results suggest a remodeling mechanism with well-defined coordination at different nucleosomal sites featuring DNA translocation toward the exit side in 1 bp steps preceding multi-bp steps of DNA movement on the entry side. PMID:23374341

Deindl, Sebastian; Hwang, William L; Hota, Swetansu K; Blosser, Timothy R; Prasad, Punit; Bartholomew, Blaine; Zhuang, Xiaowei

2013-01-31

48

DCTD — News & Events  

Cancer.gov

Skip to Content Click here to view the Site Map Home | Sitemap | Contact DCTD Search this site News & Events 2013 News 2012 News 2011 News 2010 News 2009 News 2008 News 2007 News 2006 News 2005 News DCTD Programs Cancer Diagnosis Program Cancer Imaging

49

News & Events  

Cancer.gov

News about scientific advances in cancer prevention, program activities, and new projects are included here in NCI press releases and fact sheets, articles from the NCI Cancer Bulletin, and Clinical Trial News from the NCI website.

50

Predicting the cost of error correction in character-based text entry technologies  

Microsoft Academic Search

Researchers have developed many models to predict and understand human performance in text entry. Most of the models are specific to a technology or fail to account for human factors and variations in system parameters, and the relationship between them. Moreover, the process of fixing errors and its effects on text entry performance has not been studied. Here, we first

Ahmed Sabbir Arif; Wolfgang Stuerzlinger

2010-01-01

51

CRCHD - News Releases  

Cancer.gov

CRCHD - News Releases Home News and Events News Releases Health Disparities News & Articles E-bulletin News Stories & Interviews CRCHD Spotlights Meetings & Events Press Kit News Releases & Articles 2012

52

CRCHD - News Releases  

Cancer.gov

CRCHD - News Releases Home News and Events News Releases News Releases E-bulletin News Stories Spotlights Meetings & Events Press Kit News Releases & Articles 2012 New! CRCHD PNRP Grantees Publish Research

53

A Diachronic Study of Initial Stress and Other Prosodic Features in the French News Announcer Style: Corpus-Based Measurements and Perceptual Experiments  

ERIC Educational Resources Information Center

This study focuses on prosodic evolution in the French news announcer style, based on acoustic and perceptual analysis of French audiovisual archives. A 10-hour corpus covering six decades of broadcast news is investigated automatically. Two prosodic features, which may give an impression of emphatic style, are explored: word-initial stress and…

de Mareuil, Philippe Boula; Rilliard, Albert; Allauzen, Alexandre

2012-01-01

54

ANTS: A Complete System for Automatic News Programme Annotation Based on Multimodal Analysis  

Microsoft Academic Search

This paper describes an integrated system for the acquisition, automatic annotation and Web publication of television broadcast news programmes named ANTS (automatic newscast transcription system). The system consists of several analysis components integrated in a unified architecture. Users have the possibility to access a large daily-growing database of news stories from the main national channels, all identified, categorised and published

A. Messina; R. Borgotallo; G. Dimino; D. Airola Gnota; L. Boch

2008-01-01

55

Asset specificity, experience, capability, host government intervention, and ownership-based entry mode strategy for SMEs in international markets  

Microsoft Academic Search

Purpose – The purpose of this paper is to propose an integrated theoretical framework to examine the determinants of the choice of ownership-based entry mode strategy for small to medium-sized enterprises (SMEs) in international markets. Design\\/methodology\\/approach – The statistical data sources were mail survey and secondary data collection. Logistic regression was used in the testing of the hypotheses. Findings –

Yung-Ming Cheng

2008-01-01

56

PNRS: personalized news retrieval system  

NASA Astrophysics Data System (ADS)

Personal News Retrieval System is a client-server application that delivers news segments on demand in a variety of information networks. At the server side, the news stories are segmented out from the digitized TV broadcast then classified and filtered based on consumers' preferences. At the client side, the user can access the preferred video news through the Web and watch stored video news in preferred order. Browsing preferences can be set based on anchorperson, broadcaster, category, location, top- stories and keywords. This system can be used to set up a news service run by content providers or independent media distribution companies. However, in the news era of enhanced PC/TV appliances, it is foreseeable that the whole system can run in the living room on a personal device. This paper describes the chosen server architecture, limitation of the system and solutions that can be implemented in the future.

Dimitrova, Nevenka; Elenbaas, Herman; McGee, Thomas

1999-08-01

57

Processing ground-based near-infrared imagery of space shuttle re-entries  

NASA Astrophysics Data System (ADS)

Ground-based high-resolution, calibrated, near-infrared (NIR) imagery of the Space Shuttle STS-134 Endeavour during reentry has been obtained as part of NASA's HYTHIRM (Hypersonic Thermodynamic InfraRed Measurements) project. The long-range optical sensor package called MARS (Mobile Aerospace Reconnaissance System) was positioned in advance to acquire and track part of the shuttle re-entry. Imagery was acquired during a few minutes, with the best imagery being processed when the shuttle was at 133 kft at Mach 5.8. This paper describes the processing of the NIR imagery, building upon earlier work from the airborne imagery collections of several prior shuttle missions. Our goal is to calculate the temperature distribution of the shuttle's bottom surface as accurately as possible, considering both random and systematic errors, while maintaining all physical features in the imagery, especially local intensity variations. The processing areas described are: 1) radiometric calibration, 2) improvement of image quality, 3) atmospheric compensation, and 4) conversion to temperature. The computed temperature image will be shown, as well as comparisons with thermocouples at different positions on the shuttle. A discussion of the uncertainties of the temperature estimates using the NIR imagery is also given.

Spisz, Thomas S.; Taylor, Jeff C.; Kennerly, Stephen W.; Osei-Wusu, Kwame; Gibson, David M.; Horvath, Thomas J.; Zalameda, Joseph N.; Kerns, Robert V.; Shea, Edward J.; Mercer, C. David; Schwartz, Richard J.; Dantowitz, Ronald F.; Kozubal, Marek J.

2012-05-01

58

Indication-based prescribing prevents wrong-patient medication errors in computerized provider order entry (CPOE)  

PubMed Central

Objective To determine whether indication-based computer order entry alerts intercept wrong-patient medication errors. Materials and methods At an academic medical center serving inpatients and outpatients, we developed and implemented a clinical decision support system to prompt clinicians for indications when certain medications were ordered without an appropriately coded indication on the problem list. Among all the alerts that fired, we identified every instance when a medication order was started but not completed and, within a fixed time interval, the same prescriber placed an order for the same medication for a different patient. We closely reviewed each of these instances to determine whether they were likely to have been intercepted errors. Results Over a 6-year period 127?320 alerts fired, which resulted in 32 intercepted wrong-patient errors, an interception rate of 0.25 per 1000 alerts. Neither the location of the prescriber nor the type of prescriber affected the interception rate. No intercepted errors were for patients with the same last name, but in 59% of the intercepted errors the prescriber had both patients’ charts open when the first order was initiated. Discussion Indication alerts linked to the problem list have previously been shown to improve problem list completion. This analysis demonstrates another benefit, the interception of wrong-patient medication errors. Conclusions Indication-based alerts yielded a wrong-patient medication error interception rate of 0.25 per 1000 alerts. These alerts could be implemented independently or in combination with other strategies to decrease wrong-patient medication errors.

Galanter, William; Falck, Suzanne; Burns, Matthew; Laragh, Marci; Lambert, Bruce L

2013-01-01

59

Environmental News Link  

NSDL National Science Digital Library

The Environmental News Link Web site is published by Capital Reports, which was founded in 1980 by former lobbyist Brian Sturtevant and is self described as a pioneer in specialized environmental policy reporting. Offering an alternative to mainstream sites, visitors can read timely articles on some of the most important environmental news stories of the day. A few of the recent entries include stories about new toxic air emission rules, potential changes to BLM grazing regulations, and how the EPA is providing tools to improve septic system management. Although the articles are very succinct and no links are offered for additional information, those seeking quick updates will appreciate the well laid out and easily read articles.

2003-01-01

60

Environment News Service  

NSDL National Science Digital Library

The Environment News Service is a daily international wire service covering issues and events that affect the environment. Topics include legislation, politics, conferences, lawsuits, international agreements, demonstrations, science and technology, public health, air quality, and many others. Site materials include text-based news articles and press releases, videos, information on professional media services, and subscription instructions. There is also a keyword search function that lets users locate material in older articles.

61

Mesh-Based Entry Vehicle and Explosive Debris Re-Contact Probability Modeling  

NASA Technical Reports Server (NTRS)

The risk to a crewed vehicle arising from potential re-contact with fragments from an explosive breakup of any jettisoned spacecraft segments during entry has long sought to be quantified. However, great difficulty lies in efficiently capturing the potential locations of each fragment and their collective threat to the vehicle. The method presented in this paper addresses this problem by using a stochastic approach that discretizes simulated debris pieces into volumetric cells, and then assesses strike probabilities accordingly. Combining spatial debris density and relative velocity between the debris and the entry vehicle, the strike probability can be calculated from the integral of the debris flux inside each cell over time. Using this technique it is possible to assess the risk to an entry vehicle along an entire trajectory as it separates from the jettisoned segment. By decoupling the fragment trajectories from that of the entry vehicle, multiple potential separation maneuvers can then be evaluated rapidly to provide an assessment of the best strategy to mitigate the re-contact risk.

McPherson, Mark A.; Mendeck, Gavin F.

2011-01-01

62

Industry News  

Cancer.gov

Myriad RBM announces Oncology MAP v2.0Myriad RBM, a former recipient of Small Business Innovations Research funding from the NCI, has recently announced the launch of OncologyMAP® v2.0. Print This Page Industry News, eProtein News and Events

63

RFID News  

NSDL National Science Digital Library

For additional updates on the development of RFID technology, RFID News maintains current news about emerging standards (including the controversial ISO 11784/85 standard), innovative applications, and general issues. Some topics covered include pet identification devices, intellectual property, and court cases involving RFID.

2008-05-13

64

Transponder News  

NSDL National Science Digital Library

Transponder News offers several articles that explore the technology of radio frequency identification (RFID) in greater detail. Topics include choosing the frequency, types of RFID systems, suppliers, trends, and technical reports. Visitors will also find links to interviews, standards, and registration for Transponder News' newsletter of site updates.

Marsh, Mike

1969-12-31

65

News Report.  

National Technical Information Service (NTIS)

A set of recursive relations called NEWS (for New-Product Early Warning System) is here presented in its own right as a separable part of the DEMON system for marketing new products. NEWS is designed to distinguish the variables and relations that are usu...

A. Charnes W. W. Cooper J. K. Devoe D. B. Learner L. Light

1968-01-01

66

Interesting faces: A graph-based approach for finding people in news  

Microsoft Academic Search

In this study, we propose a method for finding people in large news photograph and video collections. Our method exploits the multi-modal nature of these data sets to recognize people and does not require any supervisory input. It first uses the name of the person to populate an initial set of candidate faces. From this set, which is likely to

Derya Ozkan; Pinar Duygulu

2010-01-01

67

News & Events  

Cancer.gov

Nathaniel Rothman Honored by Vanderbilt-Ingram Cancer Center DCEG Celebrates Accomplishments of Longtime Collaborator 10th Annual Gilbert W. Beebe Symposium DCEG Participates in the International Papillomavirus Conference DCEG People in the News Print

68

Modulated Entry  

NASA Technical Reports Server (NTRS)

The technique of modulation, or variable coefficients, is discussed and the analytical formulation is reviewed. Representative numerical results of the use of modulation are shown for the lifting and nonlifting cases. These results include the effects of modulation on peak acceleration, entry corridor, and heat absorption. Results are given for entry at satellite speed and escape speed. The indications are that coefficient modulation on a vehicle with good lifting capability offers the possibility of sizable loading reductions or, alternatively, wider corridors; thus, steep entries become practical from the loading standpoint. The amount of steepness depends on the acceptable heating penalty. The price of sizable fractions of the possible gains does not appear to be excessive.

Grant, Frederick C.

1960-01-01

69

ER News  

NSDL National Science Digital Library

Energy Research News (ER News) is a bimonthly newsletter supported by the US Department of Energy's Office of Energy Research. This newsletter focuses on informing engineers, researchers, and the interested public of the latest research and technology advancements at OER. Topics include energy generation, microbiology, the Human Genome Project, global weather change, computing, and more. Users may register for an email reminder (topic list) that announces each new issue. Back issues (to April 1995) are available.

1995-01-01

70

Latest News: North American Commission for Environmental Cooperation  

NSDL National Science Digital Library

This current news site, from the North American Commission for Environmental Cooperation (CEC), is an excellent way to keep track of environmental and regional issues related to trade between Canada, Mexico, and the United States. This news page includes hyperlinked, dated entries for each specific issue.

71

New Suncook News.  

ERIC Educational Resources Information Center

The newspaper program at the New Suncook School, Lovell, Maine, is a multi-level, language arts based unit designed to develop in students strong writing and interpersonal relationship skills, and to bring relevance to writing. The monthly newspaper features interviews, surveys, news, and some fiction stories written by students. The newspaper is…

Kanehl, Bob

72

ProSound News  

NSDL National Science Digital Library

ProSound News is an online source for news and information in all facets of the recording industry. News articles are added frequently throughout each business day. In addition to providing appropriate news coverage, the site also features classifieds and an industry calendar. The archives of their news section contains news dating back to 2003. ProSound News is a service of United Entertainment Media.

2006-11-27

73

News Media.  

National Technical Information Service (NTIS)

The news media informs, challenges, questions, and aggravates. It affects the way we look at domestic and foreign policy and shapes our view of events and our ability to address the problems of the world. It is part of the national security structure of o...

B. Flory G. Demandante M. DeYoung M. Forte W. Bowman

2001-01-01

74

Activity and Safety of Synthetic Lectins Based on Benzoboroxole-Functionalized Polymers for Inhibition of HIV Entry  

PubMed Central

Lectins derived from plant and microbial sources constitute a vital class of entry inhibitors that target the oligomannose residues on the HIV envelope gp120. Despite their potency and specificity, success of lectin-based entry inhibitors may be impeded by issues in regards to economical production, formulation and potential mitogenicity. Therefore, there exists a gap in the HIV therapeutics pipeline that underscores the need for mass producible, synthetic, broad-spectrum, and biocomptabile inhibitors of HIV entry. Here, we present the development of a polymeric synthetic lectin, based on benzoboroxole (BzB), which exhibits weak affinity (~25 M?1) for non-reducing sugars, similar to those found on the HIV envelope. High molecular weight BzB-functionalized polymers demonstrated antiviral activity that increased with an increase in ligand density and molecular weight of the polymer construct; revealing that polyvalency improves activity. Polymers showed significant increase in activity from 25 to 75 mol% BzB functionalization with EC50 of 15 ?M and 15 nM, respectively. A further increase in mole functionalization to 90% resulted in an increase of the EC50 (59 ± 5 nM), likely due to the elongated rigid structure of the polymer chain compelled by electrostatic repulsion between the boronic acid groups. An increase in molecular weight of the polymer at 50 mol% BzB functionalization showed a gradual but significant increase in antiviral activity, with the highest activity seen with the 382 kDa polymer (EC50 of 1.1 ± 0.5 nM in CEM cells and 11 ± 3 nM in TZM-bl cells). Supplementing the polymer backbone with 10 mol% sulfonic acid not only increased the aqueous solubility of the polymers by at least 50-fold, but also demonstrated a synergistic increase in anti-HIV activity (4.0 ± 1.5 nM in TZM-bl cells), possibly due to electrostatic interactions between the negatively charged polymer backbone and the positively charged V3-loop in the gp120. The benzoboroxole-sulfonic acid copolymers showed no decrease in activity in the presence of a seminal concentration of fructose (p > 0.05). Additionally, the co-polymers exhibit minimal, if any effect on the cellular viability, barrier properties, or cytokine levels in human reconstructed ecto-cervical tissue after 3 days of repeated exposure and did not show pronounced activity against a variety of other RNA and DNA viruses.

Mahalingam, Alamelu; Geonnotti, Anthony R.; Balzarini, Jan; Kiser, Patrick F.

2011-01-01

75

Activity and safety of synthetic lectins based on benzoboroxole-functionalized polymers for inhibition of HIV entry.  

PubMed

Lectins derived from plant and microbial sources constitute a vital class of entry inhibitors that target the oligomannose residues on the HIV envelope gp120. Despite their potency and specificity, success of lectin-based entry inhibitors may be impeded by high manufacturing costs, formulation and potential mitogenicity. Therefore, there exists a gap in the HIV microbicides pipeline that underscores the need for mass producible, synthetic, broad-spectrum, and biocomptabile inhibitors of HIV entry. Here, we present the development of a polymeric synthetic lectin, based on benzoboroxole (BzB), which exhibits weak affinity (?25 M(-1)) for nonreducing sugars, similar to those found on the HIV envelope. High molecular weight BzB-functionalized polymers demonstrated antiviral activity that increased with an increase in ligand density and molecular weight of the polymer construct, revealing that polyvalency improves activity. Polymers showed significant increase in activity from 25 to 75 mol % BzB functionalization with EC(50) of 15 ?M and 15 nM, respectively. A further increase in mole functionalization to 90% resulted in an increase of the EC(50) (59 ± 5 nM). An increase in molecular weight of the polymer at 50 mol % BzB functionalization showed a gradual but significant increase in antiviral activity, with the highest activity seen with the 382 kDa polymer (EC(50) of 1.1 ± 0.5 nM in CEM cells and 11 ± 3 nM in TZM-bl cells). Supplementing the polymer backbone with 10 mol % sulfonic acid not only increased the aqueous solubility of the polymers by at least 50-fold but also demonstrated a synergistic increase in anti-HIV activity (4.0 ± 1.5 nM in TZM-bl cells), possibly due to electrostatic interactions between the negatively charged polymer backbone and the positively charged V3-loop in the gp120. The benzoboroxole-sulfonic acid copolymers showed no decrease in activity in the presence of a seminal concentration of fructose (p > 0.05). Additionally, the copolymers exhibit minimal, if any, effect on the cellular viability, barrier properties, or cytokine levels in human reconstructed ectocervical tissue after 3 days of repeated exposure and did not show pronounced activity against a variety of other RNA and DNA viruses. PMID:21879735

Mahalingam, Alamelu; Geonnotti, Anthony R; Balzarini, Jan; Kiser, Patrick F

2011-12-01

76

Self-Organization with Additional Learning Based on Category Mapping and Its Application to Dynamic News Clustering  

NASA Astrophysics Data System (ADS)

The Internet news are texts which involve from various fields, therefore, when a text data that will show a rapid increase of the number of dimensions of feature vectors of Self-Organizing Map (SOM) is added, these results cannot be reflected to learning. Furthermore, it is difficult for users to recognize the learning results because SOM can not produce any label information by each cluster. In order to solve these problems, we propose SOM with additional learning and dimensional by category mapping which is based on the category structure of Wikipedia. In this method, input vector is generated from each text and the corresponding Wikipedia categories extracted from Wikipedia articles. Input vectors are formed in the common category taking the hierarchical structure of Wikipedia category into consideration. By using the proposed method, the problem of reconfiguration of vector elements caused by dynamic changes in the text can be solved. Moreover, information loss in newly obtained index term can be prevented.

Toyota, Tetsuya; Nobuhara, Hajime

77

Pew Research Journalism Project: Twitter News Consumers  

NSDL National Science Digital Library

How do adults get their news? Based on a recent study from the Pew Research Journalism Project, approximately 8 percent of all adults in the United States get their news through Twitter. It's an interesting finding amidst many in this report sponsored via a collaboration with the John S. and James L. Knight Foundation. The report looks at a wide range of topics, including analysis of conversations on Twitter around major news events, exploring how people discuss major issues via this particular form of social media. Interestingly enough, the report notes that the majority of those polled (85 percent) get news at least sometimes on mobile devices and that Twitter news consumers are younger and more educated that both the overall population and Facebook news consumers. Visitors can read the complete report here and also peruse additional reports such as "News Coverage Conveys Strong Momentum for Same-Sex Marriage" and "Twitter and the Campaign."

Guskin, Emily; Mitchell, Amy S.

2013-11-04

78

Scenario-based simulation of runoff-related pesticide entries into small streams on a landscape level.  

PubMed

The prediction of runoff-related pesticide entry into surface waters on a landscape level usually requires considerable efforts with regard to input data, time, and personnel. Therefore, the need for an easy to use simulation tool with easily accessible input data, for example from already existing public sources, is obvious. In this paper, we present a simulation tool for the simulation of pesticide entry from arable land into adjacent streams. Our aim was to develop a tool applicable on the landscape level using "real world data" from numerous sites and for the simulation of parameter case studies concerning particular parameters at single sites. We used the ratio of exposure to toxicity (REXTOX) model proposed by the OECD, which had been successfully validated in the study area as part of a previous study and which was extended to calculate pesticide concentrations in adjacent streams. We simulated the pesticide entry on the landscape level at 737 sites in small streams situated in the central lowland of Germany with winter wheat, barley, and sugar beat as the main agricultural crops. A sensitivity analysis indicated that the most significant model parameters were the width of the no-application zone and the degree of plant interception. The simulation was carried out for the 15 most frequently detected substances found in the study area using eight different environmental scenarios, covering variation of the width of the no-application zone, climate, and seasonal scenarios. The highest in-stream concentrations were predicted for a scenario using no (0m) buffer zone in conjunction with increased precipitation. According to the predicted concentrations, the risk for the aquatic communities was estimated based on standard toxicity tests and the application of a safety factor. The simulation results are presented both by means of risk maps for the study area showing the simulated pesticide concentration and the resulting ecological risk for numerous sites under varying scenarios and by case study diagrams with focus on the model behavior under the influence of single parameters. Risk maps confirmed the importance of no-application (buffer) zones for the levels of pesticide input. They also indicated the importance of the existing no-application zones for certain compounds and in some cases the need for a further evaluation of these regulations. The simulation tool was implemented as a standard PC software combining the REXTOX model with a geographical information system and can be used on any current personal computer. All input data was taken from public sources of German authorities. With little effort the tool should be applicable for other areas with similar data quality. PMID:15953635

Probst, Michael; Berenzen, Norbert; Lentzen-Godding, Annette; Schulz, Ralf

2005-10-01

79

Evaluating inter-entry retrieval expressions in a relational data base management system  

Microsoft Academic Search

Among the most important current concepts in data base technology is the relational model of data base management. The theory was introduced by Codd in 1970 and has since been expanded in a large number of articles by Codd, and other authors, for example. The relational concept models the user view of a data base. As a user view it

James B. Rothnie Jr.

1975-01-01

80

News Flash!  

NSDL National Science Digital Library

This activity illustrates the interrelationship between science and engineering in the context of extinction prevention. There are two parts to the activity. The first part challenges students to think like scientists as they generate reports on endangered species and give presentations worthy of a news channel or radio broadcast. The second part puts students in the shoes of engineers, designing ways to help the endangered species.

Integrated Teaching And Learning Program

81

Secrecy News  

NSDL National Science Digital Library

The Federation of American Scientists (FAS) Project on Government Secrecy, which works to "challenge excessive government secrecy and to promote public oversight," has recently launched this email publication. Distributed two to three times per week, Secrecy News contains stories on recent developments in secrecy and security policy and links to new materials placed on the FAS Website. A subscription form is provided at the site.

82

Story Segmentation and Topic Classification of Broadcast News via a Topic-Based Segmental Model and a Genetic Algorithm  

Microsoft Academic Search

This paper presents a two-stage approach to story segmentation and topic classification of broadcast news. The two-stage paradigm adopts a decision tree and a maximum entropy model to identify the potential story boundaries in the broadcast news within a sliding window. The problem for story segmentation is thus transformed to the determination of a boundary position sequence from the potential

Chung-hsien Wu; Chia-hsin Hsieh

2009-01-01

83

An experimental investigation of base heating on typical Mars entry body shapes.  

NASA Technical Reports Server (NTRS)

Hypersonic experiments on wire supported high angle blunt cones were conducted to determine the base heating characteristics. Heating distributions were obtained for several base configurations with variations in free stream Reynolds Number and gas composition. The dependence of the heating in the base region on angle of attack was also investigated. It was found that gas composition effects can be accounted for by comparison at equal Reynolds Number. Angle of attack effects can result in either increasing or decreasing base heating depending upon the location in the base region.

Zappa, O. L.; Reinecke, W. G.

1972-01-01

84

CRCHD - PNP News  

Cancer.gov

CRCHD - PNP News  Back to CRCHD Ongoing Research PNP News PNP News PNRP Press Release October 27, 2005. Director's Update: Patient Navigator Program Reduces Cancer Health Disparities. NCI Cancer Bulletin, August 17, 2004 (vol. 1, no. 33).

85

Reconstruction of the Genesis Entry  

NASA Technical Reports Server (NTRS)

This paper provides an overview of the findings from a reconstruction analysis of the Genesis capsule entry. First, a comparison of the atmospheric properties (density and winds) encountered during the entry to the pre-entry profile is presented. The analysis that was performed on the video footage (obtained from the tracking stations at UTTR) during the descent is then described from which the Mach number at the onset of the capsule tumble was estimated following the failure of the drogue parachute deployment. Next, an assessment of the Genesis capsule aerodynamics that was extracted from the video footage is discussed, followed by a description of the capsule hypersonic attitude that must have occurred during the entry based on examination of the recovered capsule heatshield. Lastly, the entry trajectory reconstruction that was performed is presented.

Desai, Prasun N.; Qualls, Garry D.; Schoenenberger, Mark

2005-01-01

86

Proposal of an Information Compilation Method for Massive News Video Data Based on their Time-Series Semantic Structure  

NASA Astrophysics Data System (ADS)

Recent increase of digital storage capacity has enabled the creation of large-scale on-line broadcast video archives. In order to make full use of the data in the archive, it is necessary to let a user easily grasp the availability of certain video data and their contents. Considering this problem, we have been investigating efficient and effective retrieval and reusing methodologies of archived video data. The archive used as a test-bed consists of more than 1,000 hours of news video obtained from a Japanese news program during the past six years. This paper first proposes a news topic tracking and structuring method. A structure called the `topic thread structure', is organized so that it should represent the temporal flow of news topics originating from a specified news story. The paper next introduces a browsing and editing interface that enables the user to browse through news stories along the topic thread structure, and also assists the compilation of selected news stories as a customized video summary or a documentary. The method was applied to the archived news video data in order to observe the quality of the topic thread structure and the usability of the prototype interface. As a result, some structures represented the flow of topics quite close to real-world comprehension. In addition, experiments showed that when the structure could be considered meaningful, the interface combined with the structure could drastically reduce the time needed to browse through the archive for news stories related to the user's interest.

Ide, Ichiro; Kinoshita, Tomoyoshi; Takahashi, Tomokazu; Mo, Hiroshi; Katayama, Norio; Satoh, Shin'ichi; Murase, Hiroshi

87

Footprint-based identification of viral entry inhibitors targeting HIVgp41  

PubMed Central

A targeted virtual screen to the N-helix hydrophobic pocket on HIVgp41 was performed using DOCK followed by re-ranking with a new footprint-based scoring function which employed native gp41 C-helix residues as a reference. Of ca. 500,000 small molecules screened, 115 were purchased, and 7 hits were identified with favorable binding (Ki), cell-cell fusion (IC50), and cytotoxicity (CC50) profiles. Three of the seven active compounds would not have been discovered without the use of the footprints, demonstrating the utility of the method for structure-based design when a known reference compound or substrate is available.

Holden, Patrick M.; Kaur, Harmeet; Goyal, Rashi; Gochin, Miriam; Rizzo, Robert C.

2012-01-01

88

Impact of the CXCR4 structure on docking-based virtual screening of HIV entry inhibitors.  

PubMed

Herein we analyze in depth the receptor-based virtual screening (VS) performance of the five recent crystallized CXCR4 structures along with a CXCR4 rhodopsin-based homology model. All CXCR4 Protein Data Bank (PDB) structures are co-crystallized with a small organic antagonist except structure 3OE0, which is co-crystallized with a cyclic peptide analog. Evaluation of the CXCR4 models was done by retrospective docking-based VS using a test set of 248 known CXCR4 inhibitors from 4 different chemotype families and 4696 different presumed inactives. The performance of the docking protocol using the five different protein structures was assessed in terms of pose prediction and hits detection using 12 different docking scoring functions and a scoring function with rescoring. Results show that 3OE6 structure achieves the highest docking-based performance with an average area under the curve (aAUC) of 0.84 and an average enrichment factor (aEF) of 11.7 at 1% of decoys screened. CXCR4 rhodopsin-like homology model performs comparable to the crystallized structures in the 1% of database screened. Moreover, a detailed analysis of the retrospective docking results using the CXCR4 homology model in Discovery Studio allows us to hypothesize the existence of multiple binding sub-sites in CXCR4 binding pocket. PMID:23079643

Planesas, Jesús M; Pérez-Nueno, Violeta I; Borrell, José I; Teixidó, Jordi

2012-09-01

89

Parallel, Gradient-Based Anisotropic Mesh Adaptation for Re-entry Vehicle Configurations  

NASA Technical Reports Server (NTRS)

Two gradient-based adaptation methodologies have been implemented into the Fun3d refine GridEx infrastructure. A spring-analogy adaptation which provides for nodal movement to cluster mesh nodes in the vicinity of strong shocks has been extended for general use within Fun3d, and is demonstrated for a 70 sphere cone at Mach 2. A more general feature-based adaptation metric has been developed for use with the adaptation mechanics available in Fun3d, and is applicable to any unstructured, tetrahedral, flow solver. The basic functionality of general adaptation is explored through a case of flow over the forebody of a 70 sphere cone at Mach 6. A practical application of Mach 10 flow over an Apollo capsule, computed with the Felisa flow solver, is given to compare the adaptive mesh refinement with uniform mesh refinement. The examples of the paper demonstrate that the gradient-based adaptation capability as implemented can give an improvement in solution quality.

Bibb, Karen L.; Gnoffo, Peter A.; Park, Michael A.; Jones, William T.

2006-01-01

90

Development of FIAT-Based Parametric Thermal Protection System Mass Estimating Relationships for NASA's Multi-Mission Earth Entry Concept  

NASA Astrophysics Data System (ADS)

Mass estimating relationships have been formulated to determine a vehicle's Thermal Protection System material and required thickness for safe Earth entry. We focus on developing MERs, the resulting equations, model limitations, and model accuracy.

Sepka, S. A.; Samareh, J. A.

2014-06-01

91

Development Of FIAT-Based Thermal Protection System Mass Estimating Relationships For NASA's Multi-Mission Earth Entry Concept.  

National Technical Information Service (NTIS)

Mass Estimating Relationships (MERs) have been developed for use in the Program to Optimize Simulated Trajectories II (POST2) as part of NASA's multi-mission Earth Entry Vehicle (MMEEV) concept. MERs have been developed for the thermal protection systems ...

J. Samareh K. A. Trumble R. W. Maddock S. Sepka

2012-01-01

92

Multimodal News Story Segmentation  

NASA Astrophysics Data System (ADS)

In this paper, we describe a multi-modal approach to segmenting news video based on the perceived shift in content. We divide up a video document into logically coherent semantic units known as stories. We investigate the effectiveness of a number of multimedia features which serve as potential indicators of a story boundary. The results show an improvement of performance over current state of the art story segmenters.

Poulisse, Gert-Jan; Moens, Marie-Francine

93

Linking Topics of News and Blogs with Wikipedia for Complementary Navigation  

NASA Astrophysics Data System (ADS)

We study complementary navigation of news and blog, where Wikipedia entries are utilized as fundamental knowledge source for linking news articles and blog feeds/posts. In the proposed framework, given a topic as the title of a Wikipedia entry, its Wikipedia entry body text is analyzed as fundamental knowledge source for the given topic, and terms strongly related to the given topic are extracted. Those terms are then used for ranking news articles and blog posts. In the scenario of complementary navigation from a news article to closely related blog posts, Japanese Wikipedia entries are ranked according to the number of strongly related terms shared by the given news article and each Wikipedia entry. Then, top ranked 10 entries are regarded as indices for further retrieving closely related blog posts. The retrieved blog posts are finally ranked all together. The retrieved blog posts are then shown to users as blogs of personal opinions and experiences that are closely related to the given news article. In our preliminary evaluation, through an interface for manually selecting relevant Wikipedia entries, the rate of successfully retrieving relevant blog posts improved.

Sato, Yuki; Yokomoto, Daisuke; Nakasaki, Hiroyuki; Kawaba, Mariko; Utsuro, Takehito; Fukuhara, Tomohiro

94

Knowledge Mining and Visualization on News Webpages and Large-Scale News Video Database  

Microsoft Academic Search

The traditional layout of news websites, the combination of classified hierarchical browsing, headline recommendation and keyword-based search, has been used for many years. The keyword-based search is considered to be the most powerful tool for news browsing and retrieval. Unfortunately, the keyword-based query formulation technique is very difficult to use for news audiences because of the mismatch between its requirements

Hangzai Luo; Jiahang Yang; Aoying Zhou; Jianping Fan; Tianming Hu

2008-01-01

95

ENN: Environmental News Network  

NSDL National Science Digital Library

The Environmental News Network (ENN) offers original news content, source affiliate news and filter articles from a variety of news streams, including major wire services, numerous partners, contributors, freelance journalists, and research associates from around the world. Site materials include news stories and press releases on environmental themes (current and archived), commentary and editorials, an image of the day, and a spotlighted feature story. Topics include animals, agriculture, ecosystems, energy issues, climate and pollution, and many others.

96

Development of FIAT-Based Parametric Thermal Protection System Mass Estimating Relationships for NASA's Multi-Mission Earth Entry Concept  

NASA Technical Reports Server (NTRS)

Part of NASAs In-Space Propulsion Technology (ISPT) program is the development of the tradespace to support the design of a family of multi-mission Earth Entry Vehicles (MMEEV) to meet a wide range of mission requirements. An integrated tool called the Multi Mission System Analysis for Planetary Entry Descent and Landing or M-SAPE tool is being developed as part of Entry Vehicle Technology project under In-Space Technology program. The analysis and design of an Earth Entry Vehicle (EEV) is multidisciplinary in nature, requiring the application many disciplines. Part of M-SAPE's application required the development of parametric mass estimating relationships (MERs) to determine the vehicle's required Thermal Protection System (TPS) for safe Earth entry. For this analysis, the heat shield was assumed to be made of a constant thickness TPS. This resulting MERs will then e used to determine the pre-flight mass of the TPS. Two Mers have been developed for the vehicle forebaody. One MER was developed for PICA and the other consisting of Carbon Phenolic atop an Advanced Carbon-Carbon composition. For the the backshell, MERs have been developed for SIRCA, Acusil II, and LI-900. How these MERs were developed, the resulting equations, model limitations, and model accuracy are discussed in this poster.

Sepka, Steven A.; Zarchi, Kerry; Maddock, Robert W.; Samareh, Jamshid A.

2013-01-01

97

Contrasting Views of Physicians and Nurses about an Inpatient Computer-based Provider Order-entry System  

PubMed Central

Objective: Many hospitals are investing in computer-based provider order-entry (POE) systems, and providers' evaluations have proved important for the success of the systems. The authors assessed how physicians and nurses viewed the effects of one modified commercial POE system on time spent patients, resource utilization, errors with orders, and overall quality of care. Design: Survey. Measurements: Opinions of 271 POE users on medicine wards of an urban teaching hospital: 96 medical house officers, 49 attending physicians, 19 clinical fellows with heavy inpatient loads, and 107 nurses. Results: Responses were received from 85 percent of the sample. Most physicians and nurses agreed that orders were executed faster under POE. About 30 percent of house officers and attendings or fellows, compared with 56 percent of nurses, reported improvement in overall quality of care with POE. Forty-four percent of house officers and 34 percent of attendings/fellows reported that their time with patients decreased, whereas 56 percent of nurses indicated that their time with patients increased (P < 0.001). Sixty percent of house officers and 41 percent of attendings/fellows indicated that order errors increased, whereas 69 percent of nurses indicated a decrease or no change in errors. Although most nurses reported no change in the frequency of ordering tests and medications with POE, 61 percent of house officers reported an increased frequency. Conclusion: Physicians and nurses had markedly different views about effects of a POE system on patient care, highlighting the need to consider both perspectives when assessing the impact of POE. With this POE system, most nurses saw beneficial effects, whereas many physicians saw negative effects.

Weiner, Michael; Gress, Todd; Thiemann, David R.; Jenckes, Mollie; Reel, Stephanie L.; Mandell, Steven F.; Bass, Eric B.

1999-01-01

98

Developing a News Media Literacy Scale  

ERIC Educational Resources Information Center

Using a framework previously applied to other areas of media literacy, this study developed and assessed a measurement scale focused specifically on critical news media literacy. Our scale appears to successfully measure news media literacy as we have conceptualized it based on previous research, demonstrated through assessments of content,…

Ashley, Seth; Maksl, Adam; Craft, Stephanie

2013-01-01

99

Implementation and Initial Evaluation of a Web-based Nurse Order Entry System for Multidrug-Resistant Tuberculosis Patients in Peru  

Microsoft Academic Search

Socios En Salud uses directly observed therapy to treat a major- ity of the multidrug-resistant tuberculosis in Peru. The nurses play an important role in this community-based model as the pa- tients' primary care givers. Since nurses, rather than physicians, are involved in patients' daily care, we developed a nurse-order entry system to test whether such a system would improve

Sharon S Choi; Katiuska Chalco; Darius G Jazayeri; Carole D Mitnick; Jaime Bayona; Hamish S F Fraser

2004-01-01

100

A Predictive Framework for Determining How Journalists Determine News.  

ERIC Educational Resources Information Center

To determine how to articulate a concrete definition of the substance of the journalist's occupation, this paper offers a propositional framework of news value based on Kurt Lewin's gatekeeper model. First, the paper follows the established suggestion that news decisions are best studied from a gatekeeping perspective or that "news is whatever…

Gaudino, James L.

101

SHORT REPORT: PILOTING PAPERLESS DATA ENTRY FOR CLINICAL RESEARCH  

Microsoft Academic Search

Direct data entry, using handheld computers, may simplify and streamline data management, especially in remote settings. We compared the accuracy of data entry using the current standard practice (a paper-based case report form with double data entry) with that using a personal digital assistant (PDA) in a clinical study in rural Gabon. The rate of discrepant entries was 1.7%. Categorical

MICHEL A. MISSINOU; CHRISTOPHER H. O. OLOLA; SAADOU ISSIFOU; PIERRE-BLAISE MATSIEGUI; AYOLA A. ADEGNIKA; STEFFEN BORRMANN; DAVID WYPIJ; TERRIE E. TAYLOR; PETER G. KREMSNER

102

Aviation News  

NSDL National Science Digital Library

Whether you're a fan of Airbus or Boeing, Quantas or Aer Lingus, this website provides very thorough coverage of the airline industry. The Flight Global group's motto is "serious about aviation", and it shows on their homepage, where visitors can find over thirteen sections dedicated to air transport, helicopters, training, and spaceflight. The more casual user may just wish to click on a few of the "Latest News Headlines", but dedicated aeronautics devotees may wish to sign up for their e-newsletter and their RSS feed. Moving down the site's homepage, visitors can cruise on in to the "What's Hot" area and the "Jobs" section, which might be useful for future members of a flight crew or those looking to make a more dramatic career change. Of course, any visit to this site would be woefully incomplete if visitors didn't take a look at profiles of the Airbus 380, the Boeing 747, and many other planes in the "Dynamic Aircraft Profiles" area of the site.

103

A safe and convenient pseudovirus-based inhibition assay to detect neutralizing antibodies and screen for viral entry inhibitors against the novel human coronavirus MERS-CoV  

PubMed Central

Background Evidence points to the emergence of a novel human coronavirus, Middle East respiratory syndrome coronavirus (MERS-CoV), which causes a severe acute respiratory syndrome (SARS)-like disease. In response, the development of effective vaccines and therapeutics remains a clinical priority. To accomplish this, it is necessary to evaluate neutralizing antibodies and screen for MERS-CoV entry inhibitors. Methods In this study, we produced a pseudovirus bearing the full-length spike (S) protein of MERS-CoV in the Env-defective, luciferase-expressing HIV-1 backbone. We then established a pseudovirus-based inhibition assay to detect neutralizing antibodies and anti-MERS-CoV entry inhibitors. Results Our results demonstrated that the generated MERS-CoV pseudovirus allows for single-cycle infection of a variety of cells expressing dipeptidyl peptidase-4 (DPP4), the confirmed receptor for MERS-CoV. Consistent with the results from a live MERS-CoV-based inhibition assay, the antisera of mice vaccinated with a recombinant protein containing receptor-binding domain (RBD, residues 377–662) of MERS-CoV S fused with Fc of human IgG exhibited neutralizing antibody response against infection of MERS-CoV pseudovirus. Furthermore, one small molecule HIV entry inhibitor targeting gp41 (ADS-J1) and the 3-hydroxyphthalic anhydride-modified human serum albumin (HP-HSA) could significantly inhibit MERS-CoV pseudovirus infection. Conclusion Taken together, the established MERS-CoV inhibition assay is a safe and convenient pseudovirus-based alternative to BSL-3 live-virus restrictions and can be used to rapidly screen MERS-CoV entry inhibitors, as well as evaluate vaccine-induced neutralizing antibodies against the highly pathogenic MERS-CoV.

2013-01-01

104

Facilitating entry into drug treatment among injection drug users referred from a needle exchange program: Results from a community-based behavioral intervention trial  

PubMed Central

We evaluated a case management intervention to increase treatment entry among injecting drug users referred from a needle exchange program (NEP). A randomized trial of a strengths based case management (intervention) versus passive referral (control) was conducted among NEP attenders requesting and receiving referrals to subsidized, publicly funded opiate agonist treatment programs in Baltimore, MD. Logistic regression identified predictors of treatment entry within 7 days, confirmed through treatment program records. Of 247 potential subjects, 245 (99%) participated. HIV prevalence was 19%. Overall, 34% entered treatment within 7 days (intervention: 40% versus control: 26%, p = 0.03). In a multivariate “intention to treat’ model (i.e., ignoring the amount of case management actually received), those randomized to case management were more likely to enter treatment within 7 days. Additional ‘as treated’ analyses revealed that participants who received 30 min or more of case management within 7 days were 33% more likely to enter treatment and the active ingredient of case management activities was provision of transportation. These findings demonstrate the combined value of offering dedicated treatment referrals from NEP, case management and transportation in facilitating entry into drug abuse treatment. Such initiatives could be implemented at more than 140 needle exchange programs currently operating in the United States. These data also support the need for more accessible programs such as mobile or office-based drug abuse treatment.

Strathdee, Steffanie A.; Ricketts, Erin P.; Huettner, Steven; Cornelius, Lee; Bishai, David; Havens, Jennifer R.; Beilenson, Peter; Rapp, Charles; Lloyd, Jacqueline J.; Latkin, Carl A.

2007-01-01

105

DCP News Archives  

Cancer.gov

News Archives News about scientific advances in cancer prevention, program activities and projects are listed: View All  |  2014-2010  |  2009-2001 2009 2008 2007 2006 2005 2004 2003 2002 2001 Adapting the Science of Supplements

106

NatureNews  

NSDL National Science Digital Library

NatureNews is the science news website of the journal Nature. The site provides a daily summary of news about research and discoveries in life, physical and applied sciences, and clinical medicine. Materials include a daily top story, featured stories, videos, a news blog, and event announcements. There are also longer format reports, opinion features, podcasts, and an archive of past issues organized by year and month.

107

Partnership or self-reliance entry modes: Large and small technology-based enterprises’ strategies in overseas markets  

Microsoft Academic Search

This study compares large firms against small and medium-sized firms in technology industries and assesses the differences\\u000a between them in the choices between partnership and self-reliance entry modes. A sample of 166 large, small, and medium-sized\\u000a firms in technology industries was analyzed using LISREL 8.30. Results indicate that, given innovative advantage, large and\\u000a small and medium-sized firms both prefer self-reliance

Lee Li; Gongming Qian

2008-01-01

108

Development of FIAT-based Thermal Protection System Mass Estimating Relationships for NASA's Multi-Mission Earth Entry Concep  

NASA Technical Reports Server (NTRS)

Mass Estimating Relationships (MERs) have been developed for use in the Program to Optimize Simulated Trajectories II (POST2) as part of NASA's multi-mission Earth Entry Vehicle (MMEEV) concept. MERs have been developed for the thermal protection systems of PICA and of Carbon Phenolic atop Advanced Carbon-Carbon on the forebody and for SIRCA and Acusil II on the backshell. How these MERs were developed, the resulting equations, model limitations, and model accuracy are discussed herein.

Sepka, Steven Andrew; Zarchi, Kerry Agnes; Maddock, Robert W.; Samareh, Jamshid A.

2011-01-01

109

Development Of FIAT-Based Thermal Protection System Mass Estimating Relationships For NASA's Multi-Mission Earth Entry Concept  

NASA Technical Reports Server (NTRS)

Mass Estimating Relationships (MERs) have been developed for use in the Program to Optimize Simulated Trajectories II (POST2) as part of NASA's multi-mission Earth Entry Vehicle (MMEEV) concept. MERs have been developed for the thermal protection systems of PICA and of Carbon Phenolic atop Advanced Carbon-Carbon on the forebody and for SIRCA and Acusil II on the backshell. How these MERs were developed, the resulting equations, model limitations, and model accuracy are discussed herein.

Sepka, Steven; Trumble, Kerry A.; Maddock, Robert W.; Samareh, Jamshid

2012-01-01

110

SciCentral: Engineering News  

NSDL National Science Digital Library

This site provides links to engineering-related news articles from a variety of outlets and journals. Sources featured on the site must be freely accessible to online readers and are ranked by the editors based on reliability, timeliness, extent of coverage, multidisciplinary coverage, follow-up, and presentation. The main page features links to the day's headlines, a listing of the editors' top five resources for engineering news coverage, and a selection of tools and resources, including a literature search; online tools and references such as unit conversion tools and a language translation tool; and links to journals and databases, career information, and conferences.

Guy Orgambide, Scicentral C.

111

Waikupanaha ocean entry  

USGS Multimedia Gallery

At the Waikupanaha ocean entry (left), three separate steam plumes merge into one as the wind blows the steam offshore. The west Waikupanaha entry is spread out over a larger area with at least 5 separate lava entry points. This photo was taken looking southeast....

2010-06-21

112

In The News  

NSDL National Science Digital Library

Ancient climate change meant Antarctica was once covered with palm treeshttp://blogs.smithsonianmag.com/smartnews/2012/08/ancient-climate-change-meant-antarctica-was-once-covered-with-palm-trees/Palm trees 'grew on Antarctica'http://www.bbc.co.uk/news/science-environment-19077439Persistent near-tropical warmth on the Antarctic continent during the early Eocene epochhttp://www.nature.com/nature/journal/v488/n7409/full/nature11300.htmlWhat would Shackleton have tweeted?http://www.bbc.co.uk/news/science-environment-19019409United States Antarctic Programhttp://www.usap.gov/usapgov/Antarctic images by Anthony Powellhttp://www.antarcticimages.com/According to an article published in Nature on the first of August, East Antarctica once supported near-tropical ecosystems, with winter temperatures "warmer than 10 C [50 F]." Of course, this wasn't recent by human standards - the Eocene epoch during which these temperatures were the norm occurred about 55 to 48 million years ago. However, this finding may provide insight into how Earth's climate responds to variable levels of atmospheric carbon dioxide. In addition, it allows us to imagine a world very different from the one we know: one in which palm trees flourished at latitudes that today reach summer highs of about 8 C and sink to lows of -50 C.The first link takes visitors to a blog entry outlining some of the article's discoveries, including detailed descriptions of the ecosystem. The second leads to an article featuring an interview with one of the study's co-authors that describes both the procedures and findings. Interested parties may want to read the original Nature article itself, accessible via the third link. Bringing us into the modern era, the fourth link leads to an article reflecting on the complicated relationship between the outside world and those overwintering in Antarctica. The fifth allows visitors to explore facts and figures about the United States presence in Antarctica, featuring some great webcam feeds. Finally, the last link leads to a magnificent collection of images and videos of the now-frozen continent.

Grinnell, Max

2012-08-03

113

News & Announcements  

NASA Astrophysics Data System (ADS)

News from Journal House

National Chemistry Week (NCW)

National Chemistry Week Celebrating Chemistry and Art is the theme of NCW 2001, to be held November 4-10, 2001. As you make plans for participating in the celebrations in your area, keep in mind that JCE is developing special materials on this theme, which will appear in our October issue: Classroom Activities, a comprehensive Illustrated Resource Paper, Report from Online, specially written brief articles illustrated in color, articles related to the theme, and CLIPs (Chemical Laboratory Information Profiles).

Awards Announced

Passer Award

Passer Award recipients from the April 1 closing date are:
  • George Bennett, Millikin University, Decatur, IL
  • Daniel Berger, Bluffton College, Bluffton, OH
  • Karen Dunlap, Sierra College, Rocklin, CA
  • Myung-Hoon Kim, Georgia Perimeter College, Dunwoody, GA
  • Cheryl Longfellow, Philadelphia University, Philadelphia, PA
  • Jerry Maas, Oakton Community College, Des Plaines, IL
  • Tim Royappa, University of West Florida, Pensacola, FL

Visiting Scientist Award, Western Connecticut Section

Diane Bunce, The Catholic University of America, has been selected as the 2001 Visiting Scientist of the Western Connecticut Section of the ACS. The award, presented annually since 1967, brings an outstanding chemical educator to visit high schools in Fairfield County, CT. In May, Bunce visited three high schools, Christian Heritage School, Fairfield High School, and Greenwich High School, where she interacted with teachers and students and presented lectures and demonstrations to several chemistry classes. She was also keynote speaker at the ACS local section's Education Night. The awardee is selected by a committee of university and high school teachers, industrial chemists, and the previous Visiting Scientist; there is an honorarium of 1500 plus expenses.

Welch Award

Roger D. Kornberg, a professor of structural biology at the Stanford University School of Medicine, received the 2001 Welch Award for his discovery of the nucleosome and establishing its role in gene regulation; for his discovery of a giant complex of 20 proteins known as the "Mediator", which regulates the transcription process; and for determining the atomic structure of RNA polymerase II. The 300,000 award salutes Kornberg's lifetime contributions to biochemistry.

NSTA Teacher Awards

During its 2001 national convention the National Science Teachers Association presented prizes and awards to teachers for their exemplary teaching practices and commitment to quality science education. Many appear below.
Distinguished Service to Science Education Award
  • JoAnne Vasquez, Science Consultant, Gilbert, AZ
  • Richard F. Duncan, Beaverton Administrative Center, Beaverton, OR
  • Mitchell E. Batoff, New Jersey City University, Jersey City, NJ
Distinguished Informal Science Education Award
  • Al Stenstrup, Wisconsin Department of Natural Resources, Madison, WI
Ciba Specialty Chemicals Education Foundation Exemplary Science Teaching Award, High School Level
  • Gerald Friday, Marquette High School, Milwaukee, WI
Gustav Ohaus Innovations in Science Teaching, High School
  • Mark Stefanski, Marin Academy, San Rafael, CA (first place)
  • James A. Szoka, Clarke County Hi

    2001-08-01

114

News & Announcements  

NASA Astrophysics Data System (ADS)

News from Journal House

Guidelines for Submission The Journal's current Guide to Submissions can be found on pages 29-30 of this issue. They have been streamlined a bit and also include a handy check list. This information is also available on JCE Online at http://jchemed.chem.wisc.edu/Journal/Authors/. Wanted: Demo Checkers The Tested Demonstrations column needs people who like to try out demos. Column editor Ed Vitz is looking for additional volunteers to serve as "checkers" for manuscripts that have been submitted to the Journal for possible publication as Tested Demonstrations. A checker is expected to perform two functions: to review the manuscript for accuracy and novelty, and to attempt to perform the demonstration according to the procedure supplied by the author. Checkers may suggest important improvements in demonstration procedures, and for their efforts they are cited in the byline when the manuscript is published. For instance, the demo showing the yellow cascading precipitates (lead iodide) made from potassium iodide and lead nitrate was submitted by Wobbe de Vos and checked by Kim Kostka. The (yellow) cascading precipitates are from "Using Large Glass Cylinders To Demonstrate Chemical Reactions" that appeared in the April 1999 issue of JCE. We prefer that checkers begin the review process (which may in some cases involve procuring supplies) very soon after being contacted so that their review can be completed in the timely manner that authors deserve. Checkers are usually teachers who routinely present lecture demonstrations in their classes in either high school or colleges. We try not to call on checkers more often than once a year, which is one of the reasons for this request. Another is that we lose many highly valued, experienced checkers to retirement or other endeavors. Prospective checkers may want to look at a copy of the JCE Tested Demonstration Evaluation Form. It can be found on the Web at http://www.kutztown.edu/ vitz/TD/TDhome.html. This site also has links to JCE guidelines for prospective authors. Volunteers should contact Vitz by the medium of their preference: Ed Vitz, Editor, Tested Demonstrations, Journal of Chemical Education, Department of Chemistry, Kutztown University, Kutztown, PA 19530; phone: 610/683-4443; fax: 610/683-1352; email: vitz@kutztown.edu.

Awards Announced

ACS Regional Awards in High School Chemistry Teaching The American Chemical Society has announced winners of regional awards in high school chemistry teaching for 1999. Winners have demonstrated excellence in teaching, exceptional ability to challenge and inspire students, extracurricular work, and willingness to keep up to date in the field. The award consists of two certificates (one for the recipient, the other for display at the recipient's school) and a cash prize of 1,000.
  • Thomas W. Adams, Indiana Academy for Science, Mathematics & Humanities at Ball State University, Muncie, Indiana: Central Region
  • Arthur J. Crumm, Barstow School, Kansas City, Missouri: Midwest Region
  • Esther H. Freeman, Tabb High School, Yorktown, Virginia: Southeast Region
  • Joan A. Laredo-Liddell, St. Barnabas High School, Bronx, New York: Middle Atlantic Region, 1998
  • David T. Lee, Mountain Lakes High School, Mountain Lakes, New Jersey: Middle Atlantic Region, 1999
  • Diane Coley McGann, Santa Ana High School, Santa Ana, California: Western Region
  • William J. Pilotte, Newington High School, Newington, Connecticut: Northeast Region
  • Judith C. Seydel, Idaho Falls High School, Idaho Falls, Idaho: Northwest Region
  • Brenda A. Wolpa, Canyon Del Oro High School, Tucson, Arizona: Southwest/Rocky Mountain Region
NSF Distinguished Public Service Award As a part of its celebration in 2000 of its half-century in existence, the National Science Foundation has announced the recipient of its Distinguished Public Service Aw

2000-01-01

115

News & Announcements  

NASA Astrophysics Data System (ADS)

News from Journal House Perspective on JCE Online Recently a reader asked us for a perspective on JCE Onlinehow the chemical education community is receiving it and how the Journal staff itself views it. We share our responses below. Subscriber Numbers How many people subscribe to JCE Online+? As of June 1, 1999, our records show that 13% of individual JCE subscriptions in the USA include JCE Online+. This percentage has increased significantly during the past year- in June 1998 it was approximately 4% and December 1998 about 7%. Almost all subscribers to JCE Online subscribe to print as well. Since JCE Online has only very recently been made available to institutional subscribers, there are no numbers to report. There has been considerable interest in online from libraries. Given that JCE Online+ is a fairly recent subscriber option and that many subscribers have a wait-and-see approach to any new option, we feel that the numbers above are quite high. The steady growth is encouraging. Online Usage How many people visit our Web site? Statistics for the period January 1, 1999, through May 31, 1999, that may be of interest include:

Total Pages Served 361,115

Total Visits 138,377

Total Unique Visitors 51,744

Total Repeat Visitors 11,536

Average Visit Length 03:05

Average Requests/Visit 10.8

Average Pages/Visit 2.6

Average Daily Visits 916 Online Rationale and Expectations JCE Online is a very important part of the whole Journal, but we do not expect it to supplant print: online and print are very different media. Usage of JCE Online is growing steadily; our subscribers are realizing what we have learned: it is not possible to deliver the Journal in the print medium alone- print is no longer adequate to accomplish our mission. Examples of things not possible in print include:

·JCE Index to all 76 years of Journal issues, available all the time with responses within seconds.

·Supplementary materials that are important to only a limited number of our subscribers; materials that augment laboratory experiments are a good example.

·Supplementary videos, such as the videos, still images, and excerpts from interviews with nuclear chemists that give fuller meaning to the Viewpoints article "Chemistry of the Heaviest Elements- One Atom at a Time" referred to below.

·Internet feature columns are more effective in a dynamic medium. Two that are in place are Mathcad in the Chemistry Curriculum (edited by Theresa Zielinski) and Conceptual Questions and Challenge Problems (edited by William Robinson and Susan Nurrenbern).

·Buyers Guides have their content updated often and link to other useful sites. There is one for books and software and another for supplies and equipment. Elements Added to Periodic Table Two new transuranic elements have been added to the list in the Viewpoints article "Chemistry of the Heaviest ElementsOne Atom at a Time" by Darleane C. Hoffman and Diana M. Lee (JCE, 1999, 76, 331). The new elements have atomic numbers 118 and 116. The path to the discovery of these elements was predicted by Robert Smolanczuk, a young Polish theorist whose calculations led him to conclude that a lead-krypton collision technique could produce element 118, which then decays to element 116. Others questioned his results, but Hoffman invited him to join the team at the Lawrence Berkeley National Laboratory and a decision was made to try out his ideas. The result was almost complete verification of Smolanczuk's calculations. The experimental team was headed by Kenneth E. Gregorich; Darleane Hoffman is one of 15 codiscoverers of element 118. Aw

1999-08-01

116

Mars Science Laboratory Entry Guidance  

NASA Technical Reports Server (NTRS)

The Mars Science Laboratory will be the first Mars mission to attempt a guided entry with the objective of safely delivering the entry vehicle to a survivable parachute deploy state within 12.5 km of the pre-designated parachute deploy coordinates. The Entry Terminal Point Controller guidance algorithm is derived from the final phase Apollo Command Module guidance and, like Apollo, modulates the bank angle to control range based on deviations in range, altitude rate, and drag acceleration from a reference trajectory. For application to Mars landers which must make use of the tenuous Martian atmosphere, it is critical to balance the lift of the vehicle to minimize the range while still ensuring a safe deploy altitude. An overview of the process to generate optimized guidance settings is presented, discussing improvements made over the last nine years. Performance tradeoffs between ellipse size and deploy altitude will be presented, along with imposed constraints of entry acceleration and heating. Performance sensitivities to the bank reversal deadbands, heading alignment, attitude initialization error, and entry delivery errors are presented.

Mendeck, Gavin F.

2011-01-01

117

Frontier News: Forest Frontiers Initiative  

NSDL National Science Digital Library

Frontier News is World Resources Institute's online news service tracking "threats to and development in the world's large, intact natural forests." Updated weekly, Frontier News offers recent news articles on Africa, Asia, Europe & Russia, North & Central America, Oceania (Papua New Guinea, Australia, and New Zealand), and South America. General news stories and editorials highlight frontier forests, and emphasize concerns of the Forest Frontiers Initiative.

118

User Evaluation Outside the Lab: The Trial of Físchlár-News  

Microsoft Academic Search

A user study of Físchlár-News system was conducted in Spring 2004 with 16 users, each user using the system for a 1-month period. Físchlár-News is an experimental online news archive that incorporates various automatic content-based video indexing techniques and a news story recommender algorithm to process and index the daily 9 o'clock broadcast news from TV and allows its users

Hyowon Lee; Alan F. Smeaton; Barry Smyth

119

NewsWatch: A Consumer's Guide to the News  

NSDL National Science Digital Library

The Center for Media and Public Affairs, a nonpartisan research organization that conducts scientific analyses of the media, has recently launched NewsWatch, a new daily Web magazine created for news consumers, promising to "tell you when [news is] accurate, when it's wrong, and why." NewsWatch contains several sections: Today's News, a daily news summary from NewsWatch editors; Media Critic, a daily digest of news about the news media from leading media critics; Spotlight, feature articles analyzing the news media; Resources, a collection of links to online media publications, watchdog organizations, and research institutions; and Talk Back, a directory of news organizations for consumers who want to provide feedback directly to news agencies. The entire site is searchable by keyword(s).

120

News & Announcements  

NASA Astrophysics Data System (ADS)

News from Journal House

Journal Ambassadors, 1999 What do the people listed below have in common? A search of our records indicates that each has been a participant in our Journal Ambassador program during 1999.
  • Guy Anderson
  • Jim Becvar
  • Jerry Bell
  • Jim Birk
  • Diane Bunce
  • Ann Cartwright
  • Thomas Clark
  • Jane Crosby
  • Maria Dean
  • Art Ellis
  • Donald Elswick
  • Tommy Franklin
  • Babu George
  • Paul Heath
  • Angela Hoffman
  • Lynn Hogue
  • J. J. Lagowski
  • Frank Lambert
  • Dorothy Lehmkuhl
  • George Lelevre
  • Scott Luaders
  • Jane McMullen
  • Marci Merritt
  • Carl Minnier
  • Richard Narske
  • Ron Perkins
  • Gabriel Pinto
  • Dick Potts
  • Herb Retcofsky
  • Jerry Sarquis
  • Elke Schoffers
  • Sara Selfe
  • Uni Susskind
  • J. Mark Tolman
  • John Varine
  • Dawn Wakeley
  • Marla White
Those who are a part of this program take materials about the Journal to workshops, outreach programs, seminars, regional meetings, award nights, short courses, and other events at home and abroad, places where people who are interested in chemical education gather. Given about three weeks notice, we can outfit you with a variety of materials that will help others get tuned in to the good things that are happening in chemical education. We can send you an assortment of Journal issues, subscription forms, our Publications/Software Catalog, reprints from the Viewpoints series, copies of Classroom Activities, or JCE Gift Award Certificates, assuming that supplies are available. Of course we can arrange for the group to have temporary access to JCE Online. We can send you a brochure about the Ambassador program or answer any questions - just ask: email to jce@chem.wisc.edu; phone 1-800-991-5534 (U.S.) or 608-262-5153 (non-U.S.); fax 608-265-8094. If by chance you were a Journal Ambassador in 1999 but your name was not included, just let us know so that you can be recognized in a future column. Gift Subscription Awards As spring, the season of awards, approaches, we remind you of our handy Gift Certificates (a replica is shown on page 142). A gift of the Journal is not only affordable (gift subscriptions are 37/year (U.S.), 50/year (non-U.S.), but has lasting value. This is a really good way to help someone just starting out on a teaching career. An idea worth sharing comes from Carl Minnier of Essex Community College in Baltimore. He is chair of the Student Awards Committee of the Maryland Section of the ACS. This section has asked for 25 certificates because they honor annually an outstanding student from each of the two-year and four-year colleges within the territory of the Maryland Section. Want another interesting idea: give a one-year subscription to each Undergraduate Research Symposium participant. Classroom Activities for Outreach Many of our readers are involved with outreach programsindividually in their child's class, in a regional group that visits schools, in a van program, or as a demonstrator at their local science museum. Many readers have enthusiastically reported that our Classroom Activities series is a great resource for such programs. Since the Activities are designed for a high school classroom or lab (Activity 24 in this continuing series can be found in this issue), they are purposely not demanding of equipment, facilities, or time. But outreach activities often take place in very restricted environments, perhaps without sinks or electricity, sometimes with limited table space. So that we can provide timely advice in recommending activities for you to take "on the road", Nancy Gettys and Erica Jacobsen of the Journal staff have done an analysis of each, recommending whether it might be done

2000-02-01

121

A Modest Proposal: No More Main Entry.  

ERIC Educational Resources Information Center

Discusses the concept of main entry in MARC bibliographic records based on the definition in the revised second edition of the "Anglo-American Cataloguing Rules." Access points versus entries are considered; differences between card catalog and online catalog environments are examined; and primary access is suggested as an appropriate replacement…

Bierbaum, Esther Green

1994-01-01

122

Entry-Level Training. Review of Research.  

ERIC Educational Resources Information Center

Existing research on vocational education and training (VET) for entry-level employment in Australia was reviewed. According to the review, research on entry-level VET has enhanced knowledge related to the following: competence requiring knowledge and understanding as well as performance; graded standards-based assessment; problems of policy…

Lundberg, David

123

Cohesiveness in Financial News and its Relation to Market Volatility  

PubMed Central

Motivated by recent financial crises, significant research efforts have been put into studying contagion effects and herding behaviour in financial markets. Much less has been said regarding the influence of financial news on financial markets. We propose a novel measure of collective behaviour based on financial news on the Web, the News Cohesiveness Index (NCI), and we demonstrate that the index can be used as a financial market volatility indicator. We evaluate the NCI using financial documents from large Web news sources on a daily basis from October 2011 to July 2013 and analyse the interplay between financial markets and finance-related news. We hypothesise that strong cohesion in financial news reflects movements in the financial markets. Our results indicate that cohesiveness in financial news is highly correlated with and driven by volatility in financial markets.

Piskorec, Matija; Antulov-Fantulin, Nino; Novak, Petra Kralj; Mozetic, Igor; Grcar, Miha; Vodenska, Irena; Smuc, Tomislav

2014-01-01

124

Cohesiveness in financial news and its relation to market volatility.  

PubMed

Motivated by recent financial crises, significant research efforts have been put into studying contagion effects and herding behaviour in financial markets. Much less has been said regarding the influence of financial news on financial markets. We propose a novel measure of collective behaviour based on financial news on the Web, the News Cohesiveness Index (NCI), and we demonstrate that the index can be used as a financial market volatility indicator. We evaluate the NCI using financial documents from large Web news sources on a daily basis from October 2011 to July 2013 and analyse the interplay between financial markets and finance-related news. We hypothesise that strong cohesion in financial news reflects movements in the financial markets. Our results indicate that cohesiveness in financial news is highly correlated with and driven by volatility in financial markets. PMID:24849598

Piškorec, Matija; Antulov-Fantulin, Nino; Novak, Petra Kralj; Mozeti?, Igor; Gr?ar, Miha; Vodenska, Irena; Smuc, Tomislav

2014-01-01

125

Science 360 News Service  

NSDL National Science Digital Library

The Science 360 News Service gathers news "from wherever science is happening." It is a valuable service sponsored by the National Science Foundation featuring video clips, interviews, and solid news reporting. On their homepage, visitors can look over Today's Video, which might feature anything from a nanosponge that can soak up oil spills to new carbon forms. After that, visitors should head on over to the Breaking Story area of the site, which profiles a new story from the world of science. The section What the Blogs Are Saying Today is a great way to stay up to date with breaking science news, as it brings together the latest from NPR, Earthsky, Scientific American, and other high quality resources. Visitors can also click on the Sections heading which includes hundreds of photographs, news videos, and links to a world of other science news sites.

126

EuroNews  

NSDL National Science Digital Library

Created in 1992 in Lyons, France, EuroNews is a European Broadcasting Union initiative that was started by a group of European public broadcasters interested in providing European viewers with a diverse set of perspectives of regional and international news. The site will be of interest to anyone with an interest in viewing recent news briefs about a number of important topics of relevance, such as political affairs within the European Union, cultural activities, and technological innovations within various parts of the EU. Visitors can also view a weekly schedule for EuroNews, or elect to view the latest news update from EuroNews. As might be expected, the site may be viewed in a number of languages, including German, Spanish, French, Italian, Portuguese, and Russian.

127

View of entry portal into bomb shelter. Wood blocking has ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

View of entry portal into bomb shelter. Wood blocking has been installed to prevent entry, view facing north - U.S. Naval Base, Pearl Harbor, Splinterproof Shelter, Seventh Street between Avenues E & G, Pearl City, Honolulu County, HI

128

View of entry portal into bomb shelter. Wood blocking has ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

View of entry portal into bomb shelter. Wood blocking has been installed to prevent entry, view facing northwest - U.S. Naval Base, Pearl Harbor, Splinterproof Shelter, Seventh Street between Avenues E & G, Pearl City, Honolulu County, HI

129

News Items - Team Science Toolkit  

Cancer.gov

Skip to main content at the National Institutes of Health www.cancer.gov Home About Team Science About the Toolkit Discover Contribute Connect News & Events About Us News & Events Add News Item Login required Fifth Annual International Science of

130

Entry Complications in Laparoscopic Surgery  

PubMed Central

To review the complications associated with laparoscopic surgery and provide clinical direction regarding the best practice based on the best available evidence. The laparoscopic entry techniques and technologies reviewed include the classic pneumoperitoneum (Veress/trocar), the open (Hasson), the direct trocar insertion, the use of disposable shielded trocars, radially expanding trocars and visual entry systems. Medline, Pubmed and Cochrane Databases were searched for English language articles published before December 2008. It is an evidence based fact that minimal access surgery is superior to conventional open surgery since this is beneficial to the women, community and the healthcare system.Over the past 50 years, many techniques, technologies and guidelines have been introduced to eliminate the risks associated with laparoscopic entry. No single technique or instrument has been proved to eliminate laparoscopic entry associated injury. Proper evaluation of the women, supported by surgical skills and good knowledge of the technology and instrumentation is the keystone to safe access and prevention of complications during laparoscopic surgery.

Krishnakumar, S; Tambe, P

2009-01-01

131

MSL EDL Entry Guidance using the Entry Terminal Point Controller  

NASA Technical Reports Server (NTRS)

The Mars Science Laboratory will be the first Mars mission to attempt a guided entry with the objective of safely delivering the entry vehicle to a survivable parachute deploy state within 10 km of the pre-designated landing site. The Entry Terminal Point Controller guidance algorithm is derived from the final phase Apollo Command Module guidance and, like Apollo, modulates the bank angle to control range based on deviations in range, altitude rate, and drag acceleration from a reference trajectory. For application to Mars landers which must make use of the tenuous Martian atmosphere, it is critical to balance the lift of the vehicle to minimize the range while still ensuring a safe deploy altitude. An overview of the process to generate optimized guidance settings is presented, discussing improvements made over the last four years. Performance tradeoffs between ellipse size and deploy altitude will be presented, along with imposed constraints of entry acceleration and heating. Performance sensitivities to the bank reversal deadbands, heading alignment, attitude initialization error, and atmospheric delivery errors are presented. Guidance settings for contingency operations, such as those appropriate for severe dust storm scenarios, are evaluated.

2006-01-01

132

Stardust Entry Reconstruction  

NASA Technical Reports Server (NTRS)

An overview of the reconstruction analyses performed for the Stardust capsule entry is described. The results indicate that the actual entry was very close to the pre-entry predictions. The capsule landed 8.1 km north-northwest of the desired target at Utah Test and Training Range. Analyses of infrared video footage and radar range data (obtained from tracking stations) during the descent show that drogue parachute deployment was 4.8 s later than the pre-entry prediction, while main parachute deployment was 19.3 s earlier than the pre-set timer indicating that main deployment was actually triggered by the backup baroswitch. Reconstruction of a best estimated trajectory revealed that the aerodynamic drag experienced by the capsule during hypersonic flight was within 1% of pre-entry predications. Observations of the heatshield support the pre-entry estimates of small hypersonic angles of attack, since there was very little, if any, charring of the shoulder region or the aftbody. Through this investigation, an overall assertion can be made that all the data gathered from the Stardust capsule entry were consistent with flight performance close to nominal pre-entry predictions. Consequently, the design principles and methodologies utilized for the flight dynamics, aerodynamics, and aerothermodynamics analyses have been corroborated.

Desai, Prasun N.; Qualls, Garry D.

2008-01-01

133

Ultrasmall gold nanoparticles as carriers for nucleus-based gene therapy due to size-dependent nuclear entry.  

PubMed

The aim of this study was to determine the size-dependent penetration ability of gold nanoparticles and the potential application of ultrasmall gold nanoparticles for intranucleus delivery and therapy. We synthesized gold nanoparticles with diameters of 2, 6, 10, and 16 nm and compared their intracellular distribution in MCF-7 breast cancer cells. Nanoparticles smaller than 10 nm (2 and 6 nm) could enter the nucleus, whereas larger ones (10 and 16 nm) were found only in the cytoplasm. We then investigated the possibility of using ultrasmall 2 nm nanoparticles as carriers for nuclear delivery of a triplex-forming oligonucleotide (TFO) that binds to the c-myc promoter. Compared to free TFO, the nanoparticle-conjugated TFO was more effective at reducing c-myc RNA and c-myc protein, which resulted in reduced cell viability. Our result demonstrated that the entry of gold nanoparticles into the cell nucleus is critically dependent on the size of the nanoparticles. We developed a strategy for regulating gene expression, by directly delivering TFOs into the nucleus using ultrasmall gold nanoparticles. More importantly, guidelines were provided to choose appropriate nanocarriers for different biomedical purposes. PMID:24824865

Huo, Shuaidong; Jin, Shubin; Ma, Xiaowei; Xue, Xiangdong; Yang, Keni; Kumar, Anil; Wang, Paul C; Zhang, Jinchao; Hu, Zhongbo; Liang, Xing-Jie

2014-06-24

134

Working with News Media.  

ERIC Educational Resources Information Center

To work effectively with personnel in the news media, one needs to assist them in doing their job by getting accurate information to them (in plenty of time for their deadline) and in providing information about meetings (when they do not have a reporter to cover the event). Familiarity aids in communication with news media personnel so one should…

Grosenbaugh, Dick

135

Renewable Energy News  

NSDL National Science Digital Library

Renewable Energy News is a comprehensive source which provides world-wide updates on all aspects of renewable energies. The site provides links to organizations and web directories of related products and information. The site is organized in a user-friendly way with issues organized by topic or region. Science, technology, economy energy, and nuclear review are highlighted areas of news.

2007-09-17

136

News Story Quotes: Verbatim?  

ERIC Educational Resources Information Center

A study determined what beginning journalists and news reporting students have learned is acceptable to quote, verbatim, in a news story, and where they learned about these guidelines. Results of a questionnaire given to journalism students indicated that most would change direct quotes by adjusting blasphemies, correcting faulty grammar, cleaning…

Davenport, Lucinda

137

NOAA News Releases  

NSDL National Science Digital Library

NOAA News, the current awareness page of the National Oceanic & Atmospheric Administration (NOAA), offers timely articles and links to current news related to the ocean and atmosphere. Alternating feature stories introduce readers to important topics, such as threats to marine mammals, status of fisheries stocks, or the upcoming hurricane season. A series of links points users to further information or other NOAA sites.

1999-01-01

138

Thermal Soak Analysis of Earth Entry Vehicles  

NASA Technical Reports Server (NTRS)

The Multi-Mission Earth Entry Vehicle project is developing an integrated tool called Multi Mission System Analysis for Planetary Entry Descent and Landing that will provide key technology solutions including mass sizing, aerodynamics, aerothermodynamics, and thermal and structural analysis for any given sample return mission. Thermal soak analysis and temperature predictions of various components including the payload container of the entry vehicle are part of the solution that this tool will offer to mission designers. The present paper focuses on the thermal soak analysis of an entry vehicle design based on the Mars Sample Return entry vehicle geometry and discusses a technical approach to develop parametric models for thermal soak analysis that will be integrated into the tool.

Agrawal, Parul; Sepka, Steven A.; Aliaga, Jose F.; Venkatapathy, Ethiraj; Samareh, Jamshid A.

2012-01-01

139

BBC News Online  

NSDL National Science Digital Library

BBC News has entered the Internet news arena in impressive fashion. Their site contains an abundance of news pieces, organized into several sections: Front Page, UK, World, Business, Science/Technology, and Sports. The stories are generally well-written and well-supported graphically with photos and links to relevant sites. Multimedia features include continuously updated RealPlayer broadcasts from BBC Radio Five and daily broadcasts of the BBC Nine O'Clock News at 21.00 GMT. In addition, the site contains Dispatches from correspondents around the world, information on numerous BBC radio and television programs (including a link to BBC World Service online), and Talking Point, an online forum for discussing selected news items. A Cantonese version of the site, requiring special software, is also available.

1997-01-01

140

Computerized physician order entry-based system to prevent HBV reactivation in patients treated with biologic agents: The PRESCRIB project.  

PubMed

Computerized physician order entry (CPOE) applications are widely used to prevent medical errors. In our center, a CPOE system has been in use since 2009 on both the inpatient and outpatient levels. A new and simple alert was introduced in the CPOE system to notify healthcare providers of the potential risk of viral reactivation when prescribing biological therapies, thereby facilitating the request for a serological profile (hepatitis B surface antigen [HBsAg], anti-HBc, and anti-HBs) in patients who have not had these tests. Between May 2012 and May 2013, a total of 1,076 patients undergoing biological treatment were included in the implementation of the CPOE in our hospital, resulting in the identification of 4 HBsAg-positive and 69 anti-HBc-positive/HBsAg-negative patients, two of them with positive viral loads. Since the implementation of this alert system, over 90% of patients who were prescribed a biological drug (BD) have undergone serological screening to detect hepatitis B virus (HBV) infection. The use of the alert system has increased the screening rate from less than 50% to 94% for HBsAg and from less than 30% to 85% for anti-HBc in patients for whom a BD is prescribed. Six patients received prophylactic antiviral therapy. No patient had HBV reactivation. Conclusion: This study demonstrates the feasibility of implementing a CPOE system that has allowed our hospital to increase the rate of HBV screening. Its use has facilitated the identification of patients at high risk for HBV reactivation and permitted physicians to prescribe prophylactic measures according to current guidelines. (Hepatology 2014;106-113). PMID:24585503

Sampedro, Blanca; Hernández-López, Cándido; Ferrandiz, José Ramón; Illaro, Aitziber; Fábrega, Emilio; Cuadrado, Antonio; Iruzubieta, Paula; Menéndez, Susana; Cabezas, Joaquín; Crespo, Javier

2014-07-01

141

Statistical Machine Translation of Broadcast News from Spanish to Portuguese  

Microsoft Academic Search

In this paper we describe the work carried out to develop an automatic system for translation of broadcast news from Spanish\\u000a to Portuguese. Two challenging topics of speech and language processing were involved: Automatic Speech Recognition (ASR)\\u000a of the Spanish News and Statistical Machine Translation (SMT) of the results to the Portuguese language. ASR of broadcast\\u000a news is based on

Raquel Sánchez Martínez; João Paulo da Silva Neto; Diamantino António Caseiro

2008-01-01

142

Internet CNN NEWSROOM: A Digital Video News Magazine and Library  

Microsoft Academic Search

The paper discusses the development of CNN NEWSROOM on the Internet, a new multimedia news magazine based on CNN NEWSROOM, an educational news program produced by Turner Broadcasting and distributed by cable television operators nationwide. The multimedia program is assembled automatically on a daily basis as a digital video news magazine distributed via the Internet. High quality 1.5 Mbit\\/second MPEG-I

Charles L. Compton; Paul D. Bosco

1995-01-01

143

Cablehead side entry sub  

SciTech Connect

Apparatus and method are disclosed for feeding a cablehead assembly into the side of a drill string. The cablehead is passed through a low angle side entrance in a side entry sub into the drill string. A cartridge assembly is seated in the side entrance around the cable to prevent pressure loss through the entry port. The cable is clamped to the outside of the sub to lock the cable in place. The cartridge assembly is thereafter tightened about the cable to seal against pressure loss. A cover plate is secured to the outside of the sub adjacent to the entry port to prevent expulsion of the cartridge.

Barron, C. D.; Kuus, F.

1985-06-25

144

Evaluation of training programs and entry-level qualifications for nuclear-power-plant control-room personnel based on the systems approach to training  

SciTech Connect

This report summarizes results of research sponsored by the US Nuclear Regulatory Commission (NRC) Office of Nuclear Regulatory Research to initiate the use of the Systems Approach to Training in the evaluation of training programs and entry level qualifications for nuclear power plant (NPP) personnel. Variables (performance shaping factors) of potential importance to personnel selection and training are identified, and research to more rigorously define an operationally useful taxonomy of those variables is recommended. A high-level model of the Systems Approach to Training for use in the nuclear industry, which could serve as a model for NRC evaluation of industry programs, is presented. The model is consistent with current publically stated NRC policy, with the approach being followed by the Institute for Nuclear Power Operations, and with current training technology. Checklists to be used by NRC evaluators to assess training programs for NPP control-room personnel are proposed which are based on this model.

Haas, P M; Selby, D L; Hanley, M J; Mercer, R T

1983-09-01

145

Cryo-EM visualization of a viral internal ribosome entry site bound to human ribosomes: the IRES functions as an RNA-based translation factor.  

PubMed

Internal initiation of protein synthesis in eukaryotes is accomplished by recruitment of ribosomes to structured internal ribosome entry sites (IRESs), which are located in certain viral and cellular messenger RNAs. An IRES element in cricket paralysis virus (CrPV) can directly assemble 80S ribosomes in the absence of canonical initiation factors and initiator tRNA. Here we present cryo-EM structures of the CrPV IRES bound to the human ribosomal 40S subunit and to the 80S ribosome. The CrPV IRES adopts a defined, elongate structure within the ribosomal intersubunit space and forms specific contacts with components of the ribosomal A, P, and E sites. Conformational changes in the ribosome as well as within the IRES itself show that CrPV IRES actively manipulates the ribosome. CrPV-like IRES elements seem to act as RNA-based translation factors. PMID:15315759

Spahn, Christian M T; Jan, Eric; Mulder, Anke; Grassucci, Robert A; Sarnow, Peter; Frank, Joachim

2004-08-20

146

Rating News Documents for Similarity.  

ERIC Educational Resources Information Center

Discussion of electronic news available on the World Wide Web focuses on a methodology of associating news documents using similarity measures and a name-phrase algorithm to create news representations that can be compared and ranked to find related news items. Considers precision over recall and interactivity with the users. (Author/LRW)

Watters, Carolyn; Wang, Hong

2000-01-01

147

New York Times Current News Physics Applications  

NASA Astrophysics Data System (ADS)

Since 2007 I have been using NYTimes current News articles rich in graphics and physics variables for developing edited one page web (http://CisePhysics.homestead.com/files/NYT.htm) physics questions based on current events in the news. The NYTimes home page listed above contains currently ten pages with about 40 one page current edited News related physics articles per page containing: rich graphics, graphic editions by the author, edited articles, introduction to a question, questions, and answers. I use these web pages to introduce new physics concepts to students with current applications of concepts in the news. I also use these one page physics applications as pop quizzes and extra credit for students. As news happens(e.g. the 2010 Vancouver Olympics) I find the physics applications in the NYTimes articles and generate applications and questions. These new one page applications with questions are added to the home page: http://CisePhysics.homestead.com/files/NYT.htm The newest pages start with page 10 and work back in time to 9, 8, etc. The ten web pages with about 40 news articles per page are arranged in the traditional manner: vectors, kinematics, projectiles, Newton, Work & Energy, properties of matter, fluids, temperature, heat, waves, and sound. This site is listed as a resource in AAPT's Compadre site.

Cise, John

2010-03-01

148

Australian Governments' Entry Point  

NSDL National Science Digital Library

An example of a site that is powerful in its organization of government information pointers is the National Library of Australia's recently reorganized Australian Governments' Entry Point. The Australian Governments' Entry Point has connections to commonwealth, state, and local government information, as well as judicial information. Although the information pointed to by this site is by no means new, it acts as a gateway to information at all geographical levels of government in Australia.

Australia., National L.

149

Internet News Radio  

NSDL National Science Digital Library

Internet News Radio (iNR) is an audio news program which uses RealAudio software allowing Internet users to play audio files "on-demand" over the Internet, including through a standard modem connection. Most stories are broadcast in both French and English. Each week major stories relevant to the Internet are covered, as well as related technology news. iNR also offers audio articles containing movie reviews, software reviews, and feature stories. Pointers to Web sites relevant to stories are provided. Note that RealAudio now supports 28.8 modem connections in its 2.0 beta version.

150

InterNIC News  

NSDL National Science Digital Library

The _NSF Network News_, InterNIC Information Services' bimonthly publication, is now available on the Web. The current issue features an interview with the new Executive Director of the Internet Society, Tony Rutkowski, as well as a full-length article about the new NSFNET architecture, with a topology map; a Regional NIC Report from NorthWestNet about health care providers and the Internet; a news brief on current and pending National Information Infrastructure (NII) legislation, with a table of current legislation and status; and regular features of the _NSF Network News_ such as the InterNIC Event Calendar and updates from InterNIC partners.

1996-01-01

151

NetNewsWire  

NSDL National Science Digital Library

Keeping tabs on the news (or anything else) online can be a bit overwhelming, so it's nice to know that NetNewsWire can help out. While this RSS reader can perform the usual tasks of fetching and displaying news from thousands of different websites and weblogs, it also includes a weblog editor that allows users to post to a host of different popular blogging sites. The program also features an integrated podcast manager, which will automatically send new podcasts to a selected music jukebox. This version is compatible with computers running Mac OS X 10.4 or greater.

2008-01-01

152

The Russian News Service  

NSDL National Science Digital Library

This website, a service of the European Information Network, brings English-language news and background to users each weekday. Russia Today gathers news about Russia, the Confederation of Independent States, and the Baltics. The site offers current headlines (along with the time that they were most recently updated), business news, travel information, and links to local media. New stories are drawn primarily from Reuters. An archive holds back issues. Users who want to stay current on issues affecting these regions will benefit from the professional approach this site brings to coverage.

1995-01-01

153

Available hardware for automated entry control  

SciTech Connect

Automated entry control has become an increasingly important issue at facilities where budget constraints are limiting options for manned entry control points. Three questions are immediately raised when automated entry control is considered: What hardware is available How much does it cost How effective is it in maintaining security Ongoing work at Sandia National Labs is attempting to answer these questions and establish a data base for use by facility security managers working the problem of how to maintain security on a limited budget. 14 refs.

Holmes, J.P.

1990-11-01

154

An Effective News Recommendation Method for Microblog User  

PubMed Central

Recommending news stories to users, based on their preferences, has long been a favourite domain for recommender systems research. Traditional systems strive to satisfy their user by tracing users' reading history and choosing the proper candidate news articles to recommend. However, most of news websites hardly require any user to register before reading news. Besides, the latent relations between news and microblog, the popularity of particular news, and the news organization are not addressed or solved efficiently in previous approaches. In order to solve these issues, we propose an effective personalized news recommendation method based on microblog user profile building and sub class popularity prediction, in which we propose a news organization method using hybrid classification and clustering, implement a sub class popularity prediction method, and construct user profile according to our actual situation. We had designed several experiments compared to the state-of-the-art approaches on a real world dataset, and the experimental results demonstrate that our system significantly improves the accuracy and diversity in mass text data.

Gu, Wanrong; Dong, Shoubin; Zeng, Zhizhao; He, Jinchao

2014-01-01

155

An effective news recommendation method for microblog user.  

PubMed

Recommending news stories to users, based on their preferences, has long been a favourite domain for recommender systems research. Traditional systems strive to satisfy their user by tracing users' reading history and choosing the proper candidate news articles to recommend. However, most of news websites hardly require any user to register before reading news. Besides, the latent relations between news and microblog, the popularity of particular news, and the news organization are not addressed or solved efficiently in previous approaches. In order to solve these issues, we propose an effective personalized news recommendation method based on microblog user profile building and sub class popularity prediction, in which we propose a news organization method using hybrid classification and clustering, implement a sub class popularity prediction method, and construct user profile according to our actual situation. We had designed several experiments compared to the state-of-the-art approaches on a real world dataset, and the experimental results demonstrate that our system significantly improves the accuracy and diversity in mass text data. PMID:24983011

Gu, Wanrong; Dong, Shoubin; Zeng, Zhizhao; He, Jinchao

2014-01-01

156

Conservative News Service (CNS)  

NSDL National Science Digital Library

Provided by the Media Resource Center, the Conservative News Service aims to give users an alternative to what it calls "a liberal bias in the American news media and a frequent, liberal double-standard in editorial decisions on what constitutes 'news'." It does this via a mix of short digest news articles and longer analytical articles in eight areas, including politics, economics, defense, religion, and culture. The X-Pert/Files/Links section contains links to conservative experts and their institutions in 45 subject areas. In addition, the site includes links to information about several conservative talk shows ("Radio Uplink") and several bulletin boards. CNS was created by MRC Chairman L. Brent Bozell III.

1998-01-01

157

VHL Alliance News  

MedlinePLUS

... Resources › Newsletters Newsletters VHL Alliance News – April-June 2014 Volume 22, Number 2 WHAT’S INSIDE: The CGIP ... October 18-19, 2014, Rockville, MD Recent Newsletters 2014 January-March 2014; Volume 22, Number 1 2013 ...

158

Turning News into Literature.  

ERIC Educational Resources Information Center

Suggests young people can respond to news stories and political issues they feel strongly about through poetry, and presents one student's effective use of satire which lets his emotions "leak through" to the reader. (NH)

Otten, Nick; Stelmach, Majorie

1987-01-01

159

World Health News  

NSDL National Science Digital Library

Published by the Center for Health Communication of the Harvard School of Public Health, this online weekly news digest covers stories on public health issues from around the world. Aimed at an international audience of policy makers, journalists, public health researchers, practitioners, and advocates, World Health News blends original reporting with links to stories and editorials from publications worldwide. Currently, the site features a spotlight story on women's rights, health, and equality, as well as synopses and links to stories on the death penalty, AIDS, mental health care for children, environmental hazards, teens and tobacco, and gene therapy, among others. Future plans for the site include video and audio offerings, such as expert interviews and coverage of breaking public health news from "leading news organizations."

160

Understanding Health News  

MedlinePLUS

... For example, a 2010 news story reported that dark chocolate may help guard against brain injury after ... participants similar to you in ways that may matter, such as age, race, or gender? 7. Was ...

161

Green Energy News  

NSDL National Science Digital Library

Bruce Mulliken has been covering news and commentary on the world of clean, efficient, and renewable energy since 1996. His Green Energy News site is geared towards a broad audience that includes the general public, industry professionals, and government officials. First-time visitors will want to look at the "News Stories" on the front page which in recent editions have included pieces on the growing hydrogen economy, the potential of parking lots as a form of solar power, and the possibility of a zero emission electric vehicle with two wheels. Those looking for previous news features can browse the "Archives and Resources" area, which dates back to April 1996. Those looking for "green" events should browse over to the "Events Calendar" section, which provides links to upcoming events such as renewable energy conferences and clean vehicle expos.

Mulliken, Bruce C.

162

news.space  

NSDL National Science Digital Library

From Science Matters, a company aiming to increase scientific knowledge of every individual, news.space is a gathering of information on current space topics. General knowledge categories include spacecraft, mars, space, and solar; content in each category, most of which consists of hyperlinks to other sites, ranges from news releases to high quality photo images to background information on relevant topics. Chat and Multimedia sections give users the opportunity to visit chat sites, view videos, and listen to recordings.

163

SIAM News Online  

NSDL National Science Digital Library

The Society for Industrial and Applied Mathematics (SIAM) online news journal "brings educators and users of mathematics a publication that helps them keep up with the latest developments and issues in their working environment." Released ten times a year, SIAM news includes technical articles, updates about research and scientific breakthroughs, and more. With a broad range of writers and contributors, the publication can be useful for anyone who is part of the math community.

2005-12-13

164

National Geographic News  

NSDL National Science Digital Library

Every science enthusiast will find countless, fascinating stories at this National Geographic website. The news site covers stories related to adventure and exploration, archaeology and paleontology, kids' news, science and technology, people and culture, the environment, and travel. Users can discover Special Series which cover emerging explorers, oceans, the pulse of the planet, and so much more. The incredible images warrant a visit all by themselves.

165

Science News Online  

NSDL National Science Digital Library

The weekly free online science news magazine, Science News, covers "the most important research in all fields of science" and currently reaches 200,000 subscribers and 1.2 million readers. For example, this week's issue contains seventeen articles, ranging from how scientists are uncovering the secrets behind avalanches to a report on the current Hubble telescope mission. Users can search the magazine archives, freely print each article, and even subscribe via email for each week's issue.

1996-01-01

166

An Analysis of Open-Entry/Open-Exit Systems of Individualized Competency-Based Vocational Instruction for High School Students within Selected Florida School Districts. Final Report, April 5, 1978-September 30, 1979.  

ERIC Educational Resources Information Center

The major purpose of this study was to determine the characteristics, problems, and recommendations for developing and improving open-entry/open-exit systems of individualized, competency-based vocational instruction for Florida high school students. A survey instrument was developed to collect relevant data. Those surveyed in the descriptive…

Wilkie, Barbara J.

167

Do Children Really Take Note of Science in the News?  

ERIC Educational Resources Information Center

For ten days in August 2006, Pluto was rarely out of the news as members of the International Astronomical Union (IAU) deliberated on its planetary status. For the members of the "News in Science Education" group, based at Queen's University, Belfast, this offered a great opportunity for educators to explore a number of interesting and important…

Jarman, Ruth; McClune, Billy

2007-01-01

168

The PERSEUS Project: Creating Personalized Multimedia News Portal  

Microsoft Academic Search

This paper describes the Perseus project, which is devoted to developing techniques and tools for creating personalized multimedia news portals. The purpose of a personalized multimedia news portal is to provide relevant information, selected from newswire sites on the Internet and augmented by video clips automatically extracted from TV broadcasts, based on the user's preferences. To create such an intelligent

Victor Kulesh; Valery A. Petrushin; Ishwar K. Sethi

2001-01-01

169

SpeeG2: A Speech and Gesture-based Interface for Efficient Controller-free Text Entry  

Microsoft Academic Search

With the emergence of smart TVs, set-top boxes and public information screens over the last few years, there is an increasing demand to no longer use these appliances only for passive output. These devices can also be used to do text-based web search as well as other tasks which require some form of text input. However, the design of text

Lode Hoste; Beat Signer

2013-01-01

170

Is Early Center-Based Child Care Associated with Tantrums and Unmanageable Behavior over Time up to School Entry?  

ERIC Educational Resources Information Center

Background: Existing research suggests that there is a relationship between greater exposure to center-based child care and child behavioral problems though the mechanism for the impact is unclear. However the measure used to document child care has usually been average hours, which may be particularly unreliable in the early months when fewer…

Eryigit-Madzwamuse, Suna; Barnes, Jacqueline

2013-01-01

171

Highly constrained entry trajectory generation  

NASA Astrophysics Data System (ADS)

An entry trajectory planning algorithm that generates flyable trajectories satisfying waypoints, no-fly zones, and other path and terminal constraints is presented. The algorithm tactically divides the entry trajectory into the initial and glide phases. In the initial phase, a nominal angle of attack and a constant bank angle are used to generate the 3-D trajectory. In the glide phase, a planner is developed based on the evolved acceleration guidance logic for entry (EAGLE). The planner is divided into a longitudinal sub-planner and a lateral sub-planner. For longitudinal planning, the drag-energy profile is represented as five piecewise linear functions of the normalized non-conventional energy to make it consistent with both the desired trajectory length and the lateral maneuverability required to meet waypoint and no-fly zone constraints. The longitudinal sub-planner determines the magnitude of the bank angle, whereas the lateral sub-planner determines the appropriate sign of the bank angle for passing waypoints, avoiding no-fly zones, and minimizing the final heading error. The longitudinal and lateral sub-planners are iteratively employed until all path and terminal constraints are satisfied. Then, a tracker is employed to follow both the reference drag acceleration and the heading angle profiles to generate a feasible closed-loop entry trajectory. The approach is tested using the Common Aero Vehicle model. Simulations demonstrate that the generated trajectories can pass the predetermined waypoints, avoid no-fly zones, and achieve the desired target conditions within allowable tolerances.

Xie, Yu; Liu, Luhua; Tang, Guojian; Zheng, Wei

2013-07-01

172

Simplified molecular input line entry system-based optimal descriptors: QSAR modelling for voltage-gated potassium channel subunit Kv7.2.  

PubMed

CORAL software has been used to build quantitative structure-activity relationships (QSARs) for the prediction of binding affinities (pEC50, i.e., minus decimal logarithm of the 50% effective concentration) of 35 potent inhibitors towards the voltage-gated potassium channel subunit Kv7.2. The pEC50 has been modelled using eight random splits, with the following representations of the molecular structure: (i) hydrogen-suppressed graph (HSG); (ii) simplified molecular input line entry system (SMILES); (iii) graph atomic orbitals (GAOs) and (iv) hybrid representation, which is HSG together with SMILES. These models have been examined using three methods, the classic scheme, balance correlation, and balance correlation with ideal slope. The QSAR model based on single optimal descriptors using SMILES provided the best accuracy for the prediction of the pEC50. The robustness of these models has been checked using parameters such as rm(2), r(*)m(2), [Formula: see text], and using a randomization technique. The best QSAR model based on single optimal descriptors has been applied to study the in vitro structure-activity relationships of pyrazolo[1,5-a]pyrimidin-7(4H)-one derivatives as Kv7.2 modulators. The pEC50 is found to be significantly increased by the incorporation of -OH, -NO2 or -Br groups in place of one -F, whereas -NH2 has a negative effect on the pEC50 values. PMID:24580100

Achary, P Ganga Raju

2014-01-01

173

Assessing the Anticipated Consequences of Computer-based Provider Order Entry at Three Community Hospitals Using an Open-ended, Semi-structured Survey Instrument  

PubMed Central

Objective To determine what “average” clinicians in organizations that were about to implement Computer-based Provider Order Entry (CPOE) were expecting to occur, we conducted an open-ended, semi-structured survey at three community hospitals. Methods We created an open-ended, semi-structured, interview survey template that we customized for each organization. This interview-based survey was designed to be administered orally to clinicians and take approximately five minutes to complete, although clinicians were allowed to discuss as many advantages or disadvantages of the impending system roll-out as they wanted to. Results Our survey findings did not reveal any overly negative, critical, problematic, or striking sets of concerns. However, from the standpoint of unintended consequences, we found that clinicians were anticipating only a few of the events, emotions, and process changes that are likely to result from CPOE. Conclusions The results of such an open-ended survey may prove useful in helping CPOE leaders to understand user perceptions and predictions about CPOE, because it can expose issues about which more communication, or discussion, is needed. Using the survey, implementation strategies and management techniques outlined in this paper, any chief information officer (CIO) or chief medical information officer (CMIO) should be able to adequately assess their organization's CPOE readiness, make the necessary mid-course corrections, and be prepared to deal with the currently identified unintended consequences of CPOE should they occur.

Sittig, Dean F.; Ash, Joan S.; Guappone, Ken P.; Campbell, Emily M.; Dykstra, Richard H.

2009-01-01

174

Immediacy, Convenience or Engagement? An analysis of 24-hour news channels in the UK  

Microsoft Academic Search

The article is based on the first systematic analysis of the output of 24-hour news channels in the UK. From a viewer's point of view, we argue, a 24-hour news channel can fulfil three main purposes: allowing someone to watch an up-to-date news bulletin whenever they wish; enabling a viewer to watch major live news events as they happen; or

Justin Lewis; Stephen Cushion; James Thomas

2005-01-01

175

MCC level C formulation requirements. Entry guidance and entry autopilot, optional TAEM targeting  

NASA Technical Reports Server (NTRS)

The level C software formulations requirements for the entry guidance and the simplified autopilot to be used by the Mission Control Center (MCC) entry processor are presented. The modifications required to functionally simulate optional Terminal Area Energy Management (TAEM) targeting capability (OTT) are incorporated. Implementation of this logic in the MCC must be coordinated with flight software OTT implementation and MCC TAEM guidance OTT. The entry guidance logic is based on the orbiter avionics entry guidance software. Descriptions of the entry guidance detailed formulation requirements, the detailed autopilot formulation requirements, and the targeting routine are given. Also included are a definition of coordinate systems, a list of parameter definitions for the software formulations, and a set of formulation flow charts.

Harpold, J. C.

1980-01-01

176

Understanding Health News: Complementary Health Approaches In the News  

MedlinePLUS

Complementary Health Approaches In the News News stories about complementary approaches to health are often on television, the Internet, ... are confusing, conflicting, or misleading. Missing Information From Health Stories Health stories in the media teach us ...

177

Guidelines for Improving Entry Into and Retention in Care and Antiretroviral Adherence for Persons With HIV: Evidence-Based Recommendations From an International Association of Physicians in AIDS Care Panel  

PubMed Central

Description After HIV diagnosis, timely entry into HIV medical care and retention in that care are essential to the provision of effective antiretroviral therapy (ART). ART adherence is among the key determinants of successful HIV treatment outcome and is essential to minimize the emergence of drug resistance. The International Association of Physicians in AIDS Care convened a panel to develop evidence-based recommendations to optimize entry into and retention in care and ART adherence for people with HIV. Methods A systematic literature search was conducted to produce an evidence base restricted to randomized, controlled trials and observational studies with comparators that had at least 1 measured biological or behavioral end point. A total of 325 studies met the criteria. Two reviewers independently extracted and coded data from each study using a standardized data extraction form. Panel members drafted recommendations based on the body of evidence for each method or intervention and then graded the overall quality of the body of evidence and the strength for each recommendation. Recommendations Recommendations are provided for monitoring of entry into and retention in care, interventions to improve entry and retention, and monitoring of and interventions to improve ART adherence. Recommendations cover ART strategies, adherence tools, education and counseling, and health system and service delivery interventions. In addition, they cover specific issues pertaining to pregnant women, incarcerated individuals, homeless and marginally housed individuals, and children and adolescents, as well as substance use and mental health disorders. Recommendations for future research in all areas are also provided.

Thompson, Melanie A.; Mugavero, Michael J.; Amico, K. Rivet; Cargill, Victoria A.; Chang, Larry W.; Gross, Robert; Orrell, Catherine; Altice, Frederick L.; Bangsberg, David R.; Bartlett, John G.; Beckwith, Curt G.; Dowshen, Nadia; Gordon, Christopher M.; Horn, Tim; Kumar, Princy; Scott, James D.; Stirratt, Michael J.; Remien, Robert H.; Simoni, Jane M.; Nachega, Jean B.

2014-01-01

178

Entry point into new trimeric and tetrameric imide-based macrocyclic esters derived from isophthaloyl dichloride and methyl 6-aminonicotinate.  

PubMed

The one-step reaction of isophthaloyl dichloride with the 2-aminopyridine derivative (methyl 6-aminonicotinate) yields (i) a trimer-based macrocycle (EsIO)(3) and (ii) a tetramer-based macrocycle (EsIO)(4) in modest isolated synthetic yields (total of 25%), together with (iii) longer open-chain oligomers. The macrocyclization relies on the semi-flexible imide hinge formed by reaction of the 2-amino(pyridine) functional group with two acyl chloride functional groups. The determining factors in macrocycle synthesis are: (a) imide formation using the heteroaromatic ortho-N functionality; (b) the inherent ability of the imide to twist by 85-115° from planarity (as measured by the CO···CO imide torsion angles), thereby providing a hinge for macrocyclic ring closure or potentially (non)helical assembly in oligomer/polymer formation; (c) the conformational flexibility of the isophthaloyl group with meta-related carbonyl groups to twist and adopt either syn or anti conformations, although the syn conformation is observed structurally for all isophthaloyl groups in both (EsIO)(3) (trezimide) and (EsIO)(4) (tennimide) macrocycles. PMID:23364461

Mocilac, Pavle; Gallagher, John F

2013-02-01

179

Physics News Update: The AIP Bulletin of Physics News  

NSDL National Science Digital Library

The AIP Public Information Division provides the main Physics News site; it contains a browsable archive of the AIP Physics News Update, which provides concise coverage of new developments in physics, graphics "depicting important physics research topics and concepts," and a subset of more in-depth stories about breaking news in physics. Browsable archives are available at the AIP site back to 1993.

1993-01-01

180

Science News of the Year.  

ERIC Educational Resources Information Center

Highlights major science news stories of 1982 reported in "Science News." Categories include space/astronomy, biology, chemistry, medicine, energy, physics, anthropology/paleontology, earth sciences, technology, behavior, science/society, and the environment. (JN)

Science News, 1982

1982-01-01

181

Science News of the Year.  

ERIC Educational Resources Information Center

Highlights important 1983 news stories reported in Science News. Stories are categorized under: anthropology/paleontology; behavior; biology; chemistry; earth sciences; energy; environment; medicine; physics; science and society; space sciences and astronomy; and technology and computers. (JN)

Science News, 1983

1983-01-01

182

Cancer Centers Program - News & Events  

Cancer.gov

Cancer Centers Program - News & Events Home > News & Events > Recent Communications > Archives Communications Archives PLCO Etiology and Early Marker Studies (EEMS) To: Potential EEMS Investigator From: EEMS Coordinating Center Regarding:

183

Project Re-Entry.  

ERIC Educational Resources Information Center

Project Re-Entry was a follow-up study of the status of more than 5,000 former students of the Tri-County Opportunities Industrialization Center (OIC) in Harrisburg, Pennsylvania, who either never completed the entire General Educational Development (GED) test battery or completed the entire GED battery but still lacked enough points to earn a GED…

Tri-County Opportunities Industrialization Center, Inc., Harrisburg, PA.

184

Virus entry by macropinocytosis  

Microsoft Academic Search

As obligatory intracellular parasites, viruses rely on host-cell functions for most aspects of their replication cycle. This is born out during entry, when most viruses that infect vertebrate and insect cells exploit the endocytic activities of the host cell to move into the cytoplasm. Viruses belonging to vaccinia, adeno, picorna and other virus families have been reported to take advantage

Jason Mercer; Ari Helenius

2009-01-01

185

Think Exit at Entry  

ERIC Educational Resources Information Center

This paper describes the "Think Exit at Entry" program that has become the guiding principle for the Georgia Department of Juvenile Justice (DJJ). The Georgia DJJ believes that the transition process begins the day the youth enters the system and continues well after release from the institution. Literature points the need for transition planning…

O'Rourke, Tom; Satterfield, Coy E.

2005-01-01

186

Waikupanaha Ocean Entry  

USGS Multimedia Gallery

The Waikupanaha ocean entry remains active with its typical white steam plume blowing inland. The Hawaii County viewing area is marked by the white dots just below and left of the image center. The viewing area trailhead is at the white structure at the far right. ...

2010-06-21

187

Space Science News Headlines: NASA  

NSDL National Science Digital Library

The National Aeronautics and Space Administration (NASA) keeps the public abreast of recent breakthroughs in space science via Space Science News Headlines, an almost daily email service. Recent stories cover SOHO, the Leonid meteor storm, and Europa's frigid oceans. Space Science News Headlines reaches beyond the scientific community; advances and discoveries in space studies are relayed in an understandable, jargon-free manner. Interested readers can browse through past news archives or subscribe to future news stories via the homepage.

188

9. FIRST FLOOR, ENTRY HALL, LOOKING SOUTHWEST TOWARDS FRONT ENTRY ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

9. FIRST FLOOR, ENTRY HALL, LOOKING SOUTHWEST TOWARDS FRONT ENTRY WITH OPEN DOORWAY TO WINDER STAIRWAY ON RIGHT - Open Gate Farm, House, Ridge Road, 1 mile East of Elephant Road, Perkasie, Bucks County, PA

189

Measuring the Interestingness of News Articles  

SciTech Connect

An explosive growth of online news has taken place. Users are inundated with thousands of news articles, only some of which are interesting. A system to filter out uninteresting articles would aid users that need to read and analyze many articles daily, such as financial analysts and government officials. The most obvious approach for reducing the amount of information overload is to learn keywords of interest for a user (Carreira et al., 2004). Although filtering articles based on keywords removes many irrelevant articles, there are still many uninteresting articles that are highly relevant to keyword searches. A relevant article may not be interesting for various reasons, such as the article's age or if it discusses an event that the user has already read about in other articles. Although it has been shown that collaborative filtering can aid in personalized recommendation systems (Wang et al., 2006), a large number of users is needed. In a limited user environment, such as a small group of analysts monitoring news events, collaborative filtering would be ineffective. The definition of what makes an article interesting--or its 'interestingness'--varies from user to user and is continually evolving, calling for adaptable user personalization. Furthermore, due to the nature of news, most articles are uninteresting since many are similar or report events outside the scope of an individual's concerns. There has been much work in news recommendation systems, but none have yet addressed the question of what makes an article interesting.

Pon, R K; Cardenas, A F; Buttler, D J

2007-09-24

190

Genome News Network  

NSDL National Science Digital Library

While there is a great deal of information about genes and genomes available in the mainstream media, it may be difficult for many to obtain more objective and scientifically-informed material about these complex subjects. To that end, the Genome News Network provides this bi-weekly publication that features stories about human medicine, microbes, biotechnology, and agriculture. Visitors who may be less familiar about genes and genomes will want to start with the "Quick Guide to Sequenced Genomes," or the basic overview provided in the "What's a Genome" area. The site also features news updates on topics ranging from the African-American Biobank, the first cloned mule, and how geneticists recognize cancer cells. Additionally, visitors can browse through the archives of the News Network (back to the year 2000), and elect to receive the bi-weekly report via email.

191

Filtering for Medical News Items.  

ERIC Educational Resources Information Center

Describes recent work to provide a filtering service for readers interested in medically related news articles from online news sources. The first task is to filter out nonmedical news items; the remaining articles are then assigned MeSH headings for context and then further categorized by intended audience level. (Author/LRW)

Watters, Carolyn; Zheng, Wanhong; Milios, Evangelos

2002-01-01

192

News & Events - Team Science Toolkit  

Cancer.gov

Skip to main content at the National Institutes of Health www.cancer.gov Home About Team Science About the Toolkit Discover Contribute Connect News & Events About Us News & Events Add an item Login required News & Events Meet your match: Algorithms

193

The Structure of Foreign News.  

ERIC Educational Resources Information Center

To examine the ways in which aspects of foreign news content are linked together, an analysis was performed on the data collected during a content analysis of foreign news in major national daily newspapers and broadcast news programs over 12 days. The analysis included the identification of (1) up to four topics from an all-inclusive descriptive…

Stevenson, Robert L.; Thompson, Kirstin D.

194

Hubble News Archive  

NSDL National Science Digital Library

Hubble site this is a collection of all publicly released pictures from the Hubble Space Telescope. Accompanying each photograph is the official news release, an introduction to the object, fast facts, and related frequently asked questions. The news releases are sorted by category, year, and type. Some of these categories consist of: cosmology, exotic, galaxy, miscellaneous, nebula, solar system, star, star cluster, and survey. Image files in different sizes and formats are available for download. This is a nice resource for those interested in the more visual aspects of astronomy and space sciences.

2009-05-14

195

Nutrition News Focus  

NSDL National Science Digital Library

Written by David M. Klurfeld, Professor and Chairman of the Department of Nutrition and Food Science at Wayne State University in Detroit, this free, daily newsletter offers concise nutrition tips and analyses of breaking nutrition news. Nutrition News Focus aims at delivering information that ordinary people can use and understand, with a minimum of jargon and no tolerance for "mumbo-jumbo." Users can subscribe to the newsletter at the site. Subscribers receive one short mailing per day, with the topic briefly described and followed by analysis. Old newsletters are added to the archive two weeks after publication, and users can browse the archive by issue date or topic.

196

Is It Really News?  

NSDL National Science Digital Library

A leading national newspaper has stated that the majority of the information contained in its pages is in the form of advertisements. To investigate this, portions of the local newspaper are distributed to students working in groups. The class first reaches consensus on their definitions of "news" and other general headings (sports, entertainment, etc.). Students then express the ratio of the area of each category to the area of the page as a fraction and decimal. After analyzing the entire newspaper, students decide how much of it is really news.

Mathline, Pbs

1995-01-01

197

PsychNews International  

NSDL National Science Digital Library

The well known InterPsych Newsletter has changed its name to PsychNews International and is available via email subscription and the Web. It is published ten times per year. Each issue can contain a combination of research findings, job and conference listings, and listings of Internet resources. PsychNews International concentrates on issues of psychology, psychiatry, and the social sciences. The Internet resources sections are a good place for anyone interested in the field to keep abreast of useful resources.

1994-01-01

198

Atmospheric Entry Studies for Uranus  

NASA Astrophysics Data System (ADS)

To better understand the technology requirements for a Uranus atmospheric entry probe, an internal NASA study funded by ISPT program was conducted. The talk describes two different approaches to the planet: 1) direct ballistic entry and 2) Aerocapture.

Agrawal, P.; Allen, G. A.; Hwang, H. H.; Marley, M. S.; McGuire, M. K.; Garcia, J. A.; Sklyanskiy, E.; Huynh, L. C.; Moses, R. W.

2014-06-01

199

Headline Generation for Written and Broadcast News.  

National Technical Information Service (NTIS)

This technical report is an overview of work done on Headline Generation for written and broadcast news. The report covers HMM Hedge, a statistical approach based on the noisy channel model, Hedge Trimmer, a parse- and-trim approach using linguistically m...

D. Zajic B. Dorr R. Schwartz

2005-01-01

200

Finding People Frequently Appearing in News  

Microsoft Academic Search

We propose a graph based method to improve the perfor- mance of person queries in large news video collections. The method benefits from the multi-modal structure of videos and integrates text and face information. Using the idea that a person appears more frequently when his\\/her name is mentioned, we first use the speech transcript text to limit our search space

Derya Ozkan; Pinar Duygulu

2006-01-01

201

‘SOFT’ VERSUS ‘HARD’ NEWS ON MICROBLOGGING NETWORKS  

Microsoft Academic Search

This article examines the variability of produsage (the hybridization of production and consumption) within popular social media by introducing semantic network analysis of information communication on Twitter. Utilizing user data (n[2,254,806]), the study examines the dynamics of produsage (a) as a function of user activity and (b) whether produsage levels vary based on either ‘soft’ or ‘hard’ news information. The

Tyler J. Horan

2012-01-01

202

Entry and Schumpeterian profits  

Microsoft Academic Search

A large empirical literature has documented differences in Schumpeterian profits, both among firms in single industries and\\u000a between firms in different industries. Theorists have proposed various institutional and strategic factors to account for\\u000a such differences but have had relatively little to say about the manner in which technology affects entry and profits. In\\u000a this paper I present a model in

Philip E. Auerswald

2010-01-01

203

Science News For Kids  

NSDL National Science Digital Library

This online publication offers timely, interesting news stories and features, accompanied by suggestions for hands-on activities, books, articles, and web resources. The content areas include atoms and forces, earth and sky, humans and health, life, and tech and math and it is appropriate for children 9-14, their parents, and their teachers.

204

News of the Year.  

ERIC Educational Resources Information Center

Reviews library news for 1997. Highlights public library budgets, examined by number of patrons served; Internet filters and censorship; librarians and the media; private and government funding sources; outsourcing; expectations for growth in the publishing industry, emphasizing the Asian economic crisis; and new ideas from the next generation of…

St. Lifer, Evan; Olson, Renee; Milliot, Jim; Bing, Jonathan

1998-01-01

205

News from NCI  

Cancer.gov

News Contact the NCI Office of Media Relations  |  RSS Feed Lung cancer death rates fall, helping drive decrease in overall cancer death rates December 16, 2013 The Annual Report to the Nation on the Status of Cancer, covering the period 1975–2010, showed

206

Environmental news reports.  

National Technical Information Service (NTIS)

A collection of 13 news reports ranging in length from 1:30 to 2:16, about a wide range of on-going research dealing with the following environmental issues: remote sensing-water resources, a better soybean ink, kenaf: new paper crop, pesta: to control we...

1994-01-01

207

NewsWire, 2002.  

ERIC Educational Resources Information Center

This document presents the 3 2002 issues of the newsletter "NewsWire," (volume 5). Issue Number One focuses on collaborative Web projects. This issue begins with descriptions of four individual projects: "iEARN"; "Operation RubyThroat"; "Follow the Polar Huskies!"; and "Log in Your Animal Roadkill!" Features that follow include: "Bringing the…

Byrom, Elizabeth, Ed.; Bingham, Margaret, Ed.; Bowman, Gloria, Ed.; Shoemaker, Dan, Ed.

2002-01-01

208

Using VOA News Items.  

ERIC Educational Resources Information Center

The Voice of America English broadcasts have become a very convenient and accessible resource for Chinese students to learn English in China. Discusses one third-year listening course for English majors where VOA news items have been used and have proved very effective in developing students' listening skills. (Author/VWL)

Xiaoqiong, Hu

1997-01-01

209

PLCO News, Winter 2001  

Cancer.gov

PLCO News, Winter 2001 Cancer Information Service If you have a question about cancer, call and speak with a trained specialist at NCI's Cancer Information Service (CIS). The CIS operates a nationwide toll-free telephone hotline Monday-Friday, 9:00 a.m.

210

PLCO News, Winter 2001  

Cancer.gov

PLCO News, Winter 2001 Trial Update Enrollment goal: 148,000 Total enrollment (as of November 30, 2000): 152,139 Men enrolled: 75,565 Women enrolled: 76,574 Number of people enrolled at age: 55-59 49,944 60-64 47,058

211

News Editing. Second Edition.  

ERIC Educational Resources Information Center

A revision of the first edition of "News Editing," this is a textbook for the newspaper editor. The duties of the editor are detailed, as are those of other newspaper employees. Among the basic editing skills the author includes suggestions for sentence structure, word usage, and vocabulary. Examples are given of editing for objectivity, handling…

Westley, Bruce H.

212

Documents in the News  

NSDL National Science Digital Library

The University of Michigan Government Documents center provides a Documents in the News page. Taken from official sources, this page has full text documents on such subjects as Yitzhak Rabin's assassination, Bosnia, the Oklahoma City Bombing, the Ebola Virus, the United Nations Conference on Women, the G7 Summit, term limits, and the Unabomber, among many others.

York, Grace A.

1999-01-01

213

Capitol Watch Daily News  

NSDL National Science Digital Library

Capitol Watch On Line offers content on what's going on in the nations capital daily. A dozen or more headline stories plus a special interests section and links to the Federal News Service and other government sites. "Live chat with candidates and the leaders of our nation" is promised to be coming in 2 weeks.

1999-01-01

214

The Grantsmanship Center News.  

ERIC Educational Resources Information Center

The activities of the Grantsmanship Center and "The Grantsmanship Center News" are described, including their education programs for people involved in fund-raising and nonprofit management; instigation of research relating to private philanthropy, government funding, and public policy; and advocacy for improvements in public and private funding.…

Golden, Laura

1978-01-01

215

Notes and News  

NASA Astrophysics Data System (ADS)

Contribitions to the notes and news section are welcome. They should be sent to: Meteorological Applications, Met. Office College, Shinfield Park, Reading RG2 9AU, UK (Fax +44 (0) 1344 85 5410, E-mail: rwriddaway@meto.gov.uk,)

2000-12-01

216

Notes and news  

NASA Astrophysics Data System (ADS)

Contribitions to the notes and news section are welcome. They should be sent to: Meteorological Applications, Met. Office College, Shinfield Park, Reading RG2 9AU, UK (Fax +44 (0) 1344 85 5410, E-mail: rwriddaway@meto.gov.uk)

2000-06-01

217

Notes and news  

NASA Astrophysics Data System (ADS)

Contribitions to the notes and news section are welcome. They should be sent to: Meteorological Applications, Met. Office College, Shinfield Park, Reading RG2 9AU, UK (Fax +44 (0) 1344 85 5410,E-mail: rwriddaway@meto.gov.uk)

2000-09-01

218

Multiple mouse text entry for single-display groupware  

Microsoft Academic Search

A recent trend in interface design for classrooms in developing regions has many students interacting on the same display using mice. Text entry has emerged as an important problem preventing such mouse-based single- display groupware systems from offering compelling interactive activities. We explore the design space of mouse-based text entry and develop 13 techniques with novel characteristics suited to the

Saleema Amershi; Meredith Ringel Morris; Neema Moraveji; Ravin Balakrishnan; Kentaro Toyama

2010-01-01

219

Survey of planetary entry guidance algorithms  

NASA Astrophysics Data System (ADS)

This comprehensive literature survey reviews past and present planetary entry guidance algorithms. The algorithms are categorized based on the vehicle L/D and the planetary atmosphere that the vehicle is entering. Each algorithm is described based on the guidance type, the guidance formulation, and the inclusion of aerothermal parameters. An analysis was completed defining the performance of each guidance algorithm relative to one another within its specific category. Finally, an overall assessment was made regarding the state-of-the-art in spacecraft entry guidance.

D?Souza, Sarah N.; Sarigul-Klijn, Nesrin

2014-07-01

220

The NEWS Water Cycle Climatology  

NASA Technical Reports Server (NTRS)

NASA's Energy and Water Cycle Study (NEWS) program fosters collaborative research towards improved quantification and prediction of water and energy cycle consequences of climate change. In order to measure change, it is first necessary to describe current conditions. The goal of the first phase of the NEWS Water and Energy Cycle Climatology project was to develop "state of the global water cycle" and "state of the global energy cycle" assessments based on data from modern ground and space based observing systems and data integrating models. The project was a multi-institutional collaboration with more than 20 active contributors. This presentation will describe the results of the water cycle component of the first phase of the project, which include seasonal (monthly) climatologies of water fluxes over land, ocean, and atmosphere at continental and ocean basin scales. The requirement of closure of the water budget (i.e., mass conservation) at various scales was exploited to constrain the flux estimates via an optimization approach that will also be described. Further, error assessments were included with the input datasets, and we examine these in relation to inferred uncertainty in the optimized flux estimates in order to gauge our current ability to close the water budget within an expected uncertainty range.

Rodell, Matthew; Beaudoing, Hiroko Kato; L'Ecuyer, Tristan; William, Olson

2012-01-01

221

The relationship between new venture entry mode and firm performance  

Microsoft Academic Search

Grounded in the knowledge-based view of the firm, this paper compares the performance outcomes from different modes of new\\u000a venture entry. Data from new hotels entering the United Kingdom between 2006–2010 was used to explore how entry mode (i.e.,\\u000a franchised or independent) impacts post-entry firm performance. Controlling for market demand and market segments, this study\\u000a found that affiliation with a

Cathy A. Enz; Linda Canina; Daniel Palacios-Marques

222

News Particle Physics: ATLAS unveils mural at CERN Prize: Corti Trust invites essay entries Astrophysics: CERN holds cosmic-ray conference Researchers in Residence: Lord Winston returns to school Music: ATLAS scientists record physics music Conference: Champagne flows at Reims event Competition: Students triumph at physics olympiad Teaching: Physics proves popular in Japanese schools Forthcoming Events  

NASA Astrophysics Data System (ADS)

Particle Physics: ATLAS unveils mural at CERN Prize: Corti Trust invites essay entries Astrophysics: CERN holds cosmic-ray conference Researchers in Residence: Lord Winston returns to school Music: ATLAS scientists record physics music Conference: Champagne flows at Reims event Competition: Students triumph at physics olympiad Teaching: Physics proves popular in Japanese schools Forthcoming Events

2011-01-01

223

19 CFR 147.11 - Entry.  

Code of Federal Regulations, 2013 CFR

...form of entry to read substantially as follows: Entry for Exhibition Entry No. ______ Entry at the port of...on the ______ day of _________, 19__, for exhibition purposes under the Trade Fair Act of 1959. Mark...

2013-04-01

224

NO news is no new news  

USGS Publications Warehouse

In the paper 'NO News', Preston et al. (2004) make a number of erroneous assumptions regarding nitrogen oxide chemistry. These authors also present some very significant misinterpretations of previous research into the effects of various nitrogen oxides on germination of post-fire followers. Methodological differences between the study by Preston et al. (2004) and previous work are also problematic, such as using NO-donors in solution versus the use of direct application of various nitrogen oxides in the gaseous phase. A closer review of these studies, with the proper understanding of nitrogen oxide chemistry, and interpretations of the available literature, would lead to the conclusion that, contrary to the authors' assertions, the Preston et al. (2004) study supports, rather than refutes, earlier findings by Keeley and Fotheringham (1997, 1998a, b, 2000). ?? CAB International 2005.

Fotheringham, C. J.; Keeley, J. E.

2005-01-01

225

Capacitative calcium entry mechanism in porcine oocytes.  

PubMed

The presence of the capacitative Ca(2+) entry mechanism was investigated in porcine oocytes. In vitro-matured oocytes were treated with thapsigargin in Ca(2+)-free medium for 3 h to deplete intracellular calcium stores. After restoring extracellular calcium, a large calcium influx was measured by using the calcium indicator dye fura-2, indicating capacitative Ca(2+) entry. A similar divalent cation influx could also be detected with the Mn(2+)-quench technique after inositol 1,4,5-triphosphate-induced Ca(2+) release. In both cases, lanthanum, the Ca(2+) permeable channel inhibitor, completely blocked the influx caused by store depletion. Heterologous expression of Drosophila trp in porcine oocytes enhanced the thapsigargin-induced Ca(2+) influx. Polymerase chain reaction cloning using primers that were designed based on mouse and human trp sequences revealed that porcine oocytes contain a trp homologue. As in other cell types, the capacitative Ca(2+) entry mechanism might help in refilling the intracellular stores after the release of Ca(2+) from the stores. Further investigation is needed to determine whether the trp channel serves as the capacitative Ca(2+) entry pathway in porcine oocytes or is simply activated by the endogenous capacitative Ca(2+) entry mechanism and thus contributes to Ca(2+) influx. PMID:11870073

Macháty, Zoltán; Ramsoondar, Jagdeece J; Bonk, Aaron J; Bondioli, Kenneth R; Prather, Randall S

2002-03-01

226

Planetary entry experiments  

NASA Technical Reports Server (NTRS)

The final report summarizes the results from three research areas: (1) window design for the radiometric measurement of the forebody radiative heating experienced by atmospheric entry spaceraft; (2) survey of the current understanding of chemical species on selected solar system bodies and assess the importance of measurements with regard to vehicle environment and with regard to understanding of planetary atmospheres with emphasis on Venus, Mars, and Titan; and (3) measure and analyze the radiation (VUV to near-IR) from the shock heated gas cap of a blunt body in an Ames arc Jet wind-tunnel facility.

Craig, Roger A.

1994-01-01

227

Entry guidance and entry autopilot (STS-1 baseline)  

NASA Technical Reports Server (NTRS)

Preliminary entry guidance and autopilot software formulations, for use in the Mission Control Center (MCC) entry processor, are presented. The MCC requirements are met by a definition of coordinate systems, a list of parameter definitions for the software formulations, a description of the entry guidance detailed formulation requirements, a description of the detailed autopilot formualtion requirements, a description of the targeting routine, and a set of formulation flow charts.

Harpold, J. C.; Hill, O.

1980-01-01

228

DSMC simulations of OREX entry conditions  

NASA Technical Reports Server (NTRS)

Results of direct simulation Monte Carlo (DSMC) solutions are presented for the Japanese Orbital Reentry Experiment (OREX) vehicle, a 50 deg half-angle spherically blunted cone with a nose radius of 1.35 m and a base diameter of 3.4 m. The flow conditions simulated are those for entry into the Earth's atmosphere at a nominal velocity of about 7.4 km/s and zero incidence. Calculations are made for the higher altitude portion of entry, encompassing the transitional flow regime (altitudes of 200 to 80 km). Comparisons with flight measured values are made for axial acceleration, surface pressure, and stagnation point heating.

Moss, James N.; Gupta, Roop N.; Price, Joseph M.

1996-01-01

229

Entry and Landing Probe for Titan  

NASA Technical Reports Server (NTRS)

Results of a recent study of entry and landing probes for the exploration of Titan are presented. The probes considered were based on a wide range of exploration mission possibilities. They included: an atmospheric science probe, an intermediate atmospheric and limited surface science probe, and a larger atmospheric and expanded surface science probe. Because of lower gravity on Titan and its atmospheric characteristics, the entry environment is less severe than that of Mars. However, the large uncertainties in the current definition of the atmosphere and the uncertainties in Titan's surface characteristics have required tradeoffs of various combinations of entry and descent shapes and hard lander configurations. Results show that all probe classes are feasible without major developments.

Murphy, J. P.; Cuzzi, J. N.; Butts, A. J.; Carroll, P. C.

1981-01-01

230

Acoustical standards news.  

PubMed

American National Standards (ANSI Standards) developed by Accredited Standards Committees S1, S2, S3, S3/SC 1, and S12 in the areas of acoustics, mechanical vibration and shock, bioacoustics, animal bioacoustics, and noise, respectively, are published by the Acoustical Society of America (ASA). In addition to these standards, ASA publishes catalogs of Acoustical Standards, both National and International. To receive copies of the latest Standards catalogs, please contact Susan B. Blaeser.Comments are welcomed on all material in Acoustical Standards News.This Acoustical Standards News section in JASA, as well as the National and International catalogs of Acoustical Standards, and other information on the Standards Program of the Acoustical Society of America, are available via the ASA home page: http://acousticalsociety.org. PMID:24815289

Blaeser, Susan B; Schomer, Paul D

2014-05-01

231

Acoustical standards news.  

PubMed

American National Standards (ANSI Standards) developed by Accredited Standards Committees S1, S2, S3, S3/SC 1, and S12 in the areas of acoustics, mechanical vibration and shock, bioacoustics, animal bioacoustics, and noise, respectively, are published by the Acoustical Society of America (ASA). In addition to these standards, ASA publishes catalogs of Acoustical Standards, both National and International. To receive copies of the latest Standards catalogs, please contact Susan B. Blaeser.Comments are welcomed on all material in Acoustical Standards News.This Acoustical Standards News section in JASA, as well as the National and International Catalogs of Acoustical Standards, and other information on the Standards Program of the Acoustical Society of America, are available via the ASA home page: http://acousticalsociety.org. PMID:24993229

Blaeser, Susan B; Schomer, Paul D

2014-07-01

232

[Breaking bad news].  

PubMed

Breaking bad news is one of the most stressful duties of the physician in oncology. Among other issues, it includes discussion of cancer diagnosis or the failure of therapy. The oncologist is often puzzled by an apprehension regarding the delivery of bad news. The fear to be exposed to unexpected strong emotional reactions by the patient, such as aggression or despair, may cause the oncologist to adopt unproductive coping strategies such as discussion about technical details while avoiding to deliver the main message. However, good communication skills are the key for a satisfying conversation with the patient. The oncologists' discomfort induced by the above mentioned apprehension is one of the most important barriers for a successful conversation. PMID:15991627

Voelter, Verena; Mirimanoff, René-Olivier; Stiefel, Friedrich; Rousselle, Ingrid; Leyvraz, Serge

2005-05-18

233

Botanical Electronic News (BEN)  

NSDL National Science Digital Library

The electronic newsletter BEN contains recent news about research and researchers in botany. Produced at least once a month by Dr. A. Ceska, the focus of BEN is primarily botany in British Columbia, Canada, and the adjacent Pacific Northwest (US). The BEN homepage offers users access to all issues of BEN back to 1995 (issue 115); articles vary in depth but often include links to substantial online information, such as publications, keys, or other useful resources.

234

Geomorphology in the news  

NSDL National Science Digital Library

Each student must choose a current news article that relates to geomorphology. Each student will given an oral presentation about the article, including a synopsis of the story and a description of geomorphic processes that are involved. The other students are able to ask questions. The activity gives the students a chance to relate what they are learning about in class to current events and social issues. Designed for a geomorphology course Has minimal/no quantitative component

Gasparini, Nicole

235

Transcribing radio news  

Microsoft Academic Search

We have recently extended the capabilities of BBN's large-vocabulary discrete-utterance speech recognition system (BYBLOS) to operate on raw audio recordings of radio news programming. The recordings are given to the system as large monolithic waveforms without any additional side-information. Our goal is to transcribe all speech in the input with the highest accuracy possible. The problem is very challenging because

Francis Kzsbala; Tasos Anastasakos; Hubert Jin; Long Nguyen; Richard M. Schwartz

1996-01-01

236

Lessons learned from planetary entry probe missions  

NASA Astrophysics Data System (ADS)

Probing the atmospheres and surfaces of the planets and their moons with fast moving entry probes has been a very useful and essential technique to obtain in situ or quasi in situ scientific data (ground truth) which could not otherwise be obtained from fly by or orbiter only missions and where balloon, aircraft or lander missions are too complex and too costly. Planetary entry probe missions have been conducted successfully on Venus, Mars, Jupiter and Titan after having been first demonstrated in the Earth's atmosphere. Future planetary missions should also include more entry probe missions back to Venus and to the outer planets. The success of and science returns from past missions, the need for more and unique data, and a continuously advancing technology generate confidence that future missions will be even more successful with respect to science return and technical performance. There are, however, unique challenges associated with entry probe missions and with building instruments for an entry probe, as compared to orbiters, landers, or rovers. Conditions during atmospheric entry are extreme. There are operating time constraints due to the usually short duration of the probe descent, and the instruments experience rapid environmental changes in temperature and pressure. In addition, there are resource limitations, i.e. mass, power, size and bandwidth. Because of the protective heat shield and the high acceleration the probe experiences during entry, the ratio of payload to total probe mass is usually much smaller than in other missions. Finally, the demands on the instrument design are determined in large part by conditions (pressure, temperature, composition) unique to the particular body under study, and as a result, there is no one-size-fits-all instrument for an atmospheric probe. Many of these requirements are more easily met by miniaturizing the probe instrumentation and consequently reducing the required size of the probe. Improved heat shield technology will also play an important role. The emergence over the past twenty years of Micro-electro-mechanical Systems (MEMS), utilizing lithographic semiconductor fabrication techniques to produce instrument systems in miniature, holds great promise for application to spaceflight. For example, a highly miniaturized, high performance and low-power gas chromatograph mass spectrometer would enormously benefit entry probe missions, allowing, for example, parallel measurements (e.g., multiple simultaneous gas chromatographic and direct atmospheric measurements). Such an instrument would also enable mass spectrometry on board small multiple entry probes. The challenge facing us in the development of MEMS based instruments is to move beyond the proof-of-concept, where research dollars tend to focus, and carry out the detailed work of developing high performance flight instrument systems on a chip which reach the required high technical readiness level for space flight.

Niemann, Hasso; Atreya, Sushil K.; Kasprzak, Wayne

237

Contact: Releasing the news  

NASA Astrophysics Data System (ADS)

The problem of mass behavior after man's future contacts with other intelligences in the universe is not only a challenge for social scientists and political leaders all over the world, but also a cultural time bomb as well. In fact, since the impact of CETI (Contact with Extraterrestrial Intelligence) on human civilization, with its different cultures, might cause a serious socio-anthropological shock, a common and predetermined worldwide strategy is necessary in releasing the news after the contact, in order to keep possible manifestations of fear, panic and hysteria under control. An analysis of past studies in this field and of parallel historical situations as analogs suggests a definite "authority crisis" in the public as a direct consequence of an unexpected release of the news, involving a devastating "chain reaction" process (from both the psychological and sociological viewpoints) of anomie and maybe the collapse of today's society. The only way to prevent all this is to prepare the world's public opinion concerning contact before releasing the news, and to develop a long-term strategy through the combined efforts of scientists, political leaders, intelligence agencies and the mass media, in order to create the cultural conditions in which a confrontation with ETI won't affect mankind in a traumatic way. Definite roles and tasks in this multi-level model are suggested.

Pinotti, Roberto

238

Delivering the News with Blogs  

Microsoft Academic Search

To deliver information about library news, services and resources to the science faculty and students at Georgia State University, several librarians developed a blog, Science News http:\\/\\/www.library. gsu.edu\\/news\\/science\\/. Despite the increasing popularity of blogs (or Weblogs), few libraries have taken advantage of what they offer. Blogs can be updated easily, frequently and continuously, making them an appealing alternative to static

Teri M. Vogel; Doug Goans

2005-01-01

239

Shuttle entry trajectory reconstruction using inflight accelerometer and gyro measurements  

Microsoft Academic Search

An error analysis has been made of a Shuttle postflight entry trajectory reconstruction process to obtain trajectory state estimation errors and to assess the impact of these errors on Shuttle aerodynamic force coefficient extraction. In this analysis, the entry trajectory is assumed to be reconstructed via numerical integration of onboard accelerometer and gyro measurements and constrained to satisfy ground-based radio

H. R. Compton; R. C. Blanchard; J. T. Findlay

1979-01-01

240

Entry-Level Worker Study: Phase 1 Report. Program Report.  

ERIC Educational Resources Information Center

A study examined innovative workplace practices in companies that employ significant numbers of entry-level workers. Findings were based on a series of personal interviews with human resource directors in 58 companies in the Northwest and the Pacific. Asked about the quality of current entry-level workers, employers reported that a disturbing…

Owens, Thomas; And Others

241

Text Features Made Easy Using News Magazines  

NSDL National Science Digital Library

In this lesson, students will use news magazines such as Time for Kids, Science News for Kids, or other news magazines to identify text features and explain how the text features contribute to their understanding of the informational text.

2012-10-05

242

7 CFR 28.904 - Market news.  

Code of Federal Regulations, 2010 CFR

...2009-01-01 2009-01-01 false Market news. 28.904 Section 28.904 Agriculture...STANDARDS Cotton Classification and Market News Service for Producers Classification and Market News Services § 28.904 Market...

2009-01-01

243

7 CFR 28.904 - Market news.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 2010-01-01 false Market news. 28.904 Section 28.904 Agriculture...STANDARDS Cotton Classification and Market News Service for Producers Classification and Market News Services § 28.904 Market...

2010-01-01

244

Reconstruction of the Stardust Entry  

NASA Technical Reports Server (NTRS)

An overview of the reconstruction analyses performed for the Stardust capsule entry is described. The results indicate that the actual entry was very close to the pre-entry predictions. The capsule landed 8.1 km northwest of the desired target at Utah Test and Training Range. Frequency analysis on the infrared video data indicates that the aerodynamics generated for the Stardust capsule reasonably predicted the drag and static stability. Observations of the heatshield support the pre-entry simulation estimates of a small hypersonic angles-of-attack, since there is very little, if any, charring of the shoulder region or the aftbody. Through this investigation, an overall assertion can be made that all the data gathered from the Stardust entry is consistent with flight performance close to the nominal pre-entry prediction. Consequently, the design principles and methodologies utilized for the flight dynamics, aerodynamics, and aerothermodynamics analyses have been corroborated.

Desai, Prasun N.; Qualls, Garry D.

2007-01-01

245

17. NORTHEAST CORNER OF BUILDING 345 (ENTRY CONTROL BUILDING) IN ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

17. NORTHEAST CORNER OF BUILDING 345 (ENTRY CONTROL BUILDING) IN STORAGE AREA. - Loring Air Force Base, Weapons Storage Area, Northeastern corner of base at northern end of Maine Road, Limestone, Aroostook County, ME

246

23. SOUTHWEST CORNER OF BUILDING 220 (ENTRY CONTROL BUILDING) IN ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

23. SOUTHWEST CORNER OF BUILDING 220 (ENTRY CONTROL BUILDING) IN ASSEMBLY AREA. - Loring Air Force Base, Weapons Storage Area, Northeastern corner of base at northern end of Maine Road, Limestone, Aroostook County, ME

247

22. NORTH ELEVATION OF BUILDING 220 (ENTRY CONTROL BUILDING) IN ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

22. NORTH ELEVATION OF BUILDING 220 (ENTRY CONTROL BUILDING) IN ASSEMBLY AREA. - Loring Air Force Base, Weapons Storage Area, Northeastern corner of base at northern end of Maine Road, Limestone, Aroostook County, ME

248

16. EAST FRONT ELEVATION OF BUILDING 345 (ENTRY CONTROL BUILDING) ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

16. EAST FRONT ELEVATION OF BUILDING 345 (ENTRY CONTROL BUILDING) IN STORAGE AREA. - Loring Air Force Base, Weapons Storage Area, Northeastern corner of base at northern end of Maine Road, Limestone, Aroostook County, ME

249

6. DETAIL OF ENTRY ON NORTH ELEVATION OF BUILDING 260 ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

6. DETAIL OF ENTRY ON NORTH ELEVATION OF BUILDING 260 (STORAGE STRUCTURE) IN STORAGE AREA. - Loring Air Force Base, Weapons Storage Area, Northeastern corner of base at northern end of Maine Road, Limestone, Aroostook County, ME

250

24. CONTEXT VIEW OF BUILDING 220 (ENTRY CONTROL BUILDING) LOOKING ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

24. CONTEXT VIEW OF BUILDING 220 (ENTRY CONTROL BUILDING) LOOKING NORTH THROUGH SECURITY GATES. - Loring Air Force Base, Weapons Storage Area, Northeastern corner of base at northern end of Maine Road, Limestone, Aroostook County, ME

251

5. SOUTH ELEVATION OF BUILDING 8965 (SECURITY POLICE ENTRY CONTROL ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

5. SOUTH ELEVATION OF BUILDING 8965 (SECURITY POLICE ENTRY CONTROL BUILDING). - Loring Air Force Base, Alert Area, Southeastern portion of base, east of southern end of runway, Limestone, Aroostook County, ME

252

7. SOUTHEAST CORNER OF BUILDING 8965 (SECURITY POLICE ENTRY CONTROL ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

7. SOUTHEAST CORNER OF BUILDING 8965 (SECURITY POLICE ENTRY CONTROL BUILDING). - Loring Air Force Base, Alert Area, Southeastern portion of base, east of southern end of runway, Limestone, Aroostook County, ME

253

6. SOUTHWEST CORNER OF BUILDING 8965 (SECURITY POLICE ENTRY CONTROL ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

6. SOUTHWEST CORNER OF BUILDING 8965 (SECURITY POLICE ENTRY CONTROL BUILDING). - Loring Air Force Base, Alert Area, Southeastern portion of base, east of southern end of runway, Limestone, Aroostook County, ME

254

News Discourse: The Paratextual Structure of News Texts.  

ERIC Educational Resources Information Center

This paper examines the paratextual structure of news texts, i.e., the headline system (superheadline, main headline, and subheadline) and the lead. In the first part of the paper T. A. van Dijk's interdisciplinary theory (1988) of "news in the press" is reviewed with special reference to the status and function assigned to the paratext. In the…

Frandsen, Finn

255

News Aware Volatility Forecasting: Is the Content of News Important?  

Microsoft Academic Search

The efficient market hypothesis states that the mar ket incorporates all available information to provide a n accurate valuation of the asset at any given time. However, most models for forecasting the return or volatility of assets completely disregard the arriv al of asset specific news (i.e., news which is directly r elevant to the asset). In this paper we

Calum Robertson; Shlomo Geva; Rodney Wolff

2007-01-01

256

Computerized Physician Order Entry  

PubMed Central

Computerized physician order entry (CPOE) has been promoted as an important component of patient safety, quality improvement, and modernization of medical practice. In practice, however, CPOE affects health care delivery in complex ways, with benefits as well as risks. Every implementation of CPOE is associated with both generally recognized and unique local factors that can facilitate or confound its rollout, and neurohospitalists will often be at the forefront of such rollouts. In this article, we review the literature on CPOE, beginning with definitions and proceeding to comparisons to the standard of care. We then proceed to discuss clinical decision support systems, negative aspects of CPOE, and cultural context of CPOE implementation. Before concluding, we follow the experiences of a Chief Medical Information Officer and neurohospitalist who rolled out a CPOE system at his own health care organization and managed the resulting workflow changes and setbacks.

Khanna, Raman; Yen, Tony

2014-01-01

257

Science News of the Year.  

ERIC Educational Resources Information Center

Provides a review of science news stories reported in "Science News" during 1987. References each item to the volume and page number in which the subject was addressed. Contains references on astronomy, behavior, biology, biomedicine, chemistry, earth sciences, environment, mathematics and computers, paleontology and anthropology, physics, science…

Science News, 1987

1987-01-01

258

What Turns Events into News?  

ERIC Educational Resources Information Center

"The New York Times" is known for its slogan ''All the News That's Fit to Print.'' But how do gatekeepers decide which events meet this criterion? Although some individuals might believe that the news constitutes an undistorted reflection of the social reality, students in communication courses have the…

Tukachinsky, Riva

2013-01-01

259

Science News of the Year.  

ERIC Educational Resources Information Center

Reviews important science news stories reported during 1984 in "Science News" magazine. These stories are in the categories of: anthropology and paleontology; behavior; biology; chemistry; computers; mathematics; earth science; the environment; medicine; physics; science and society; space sciences and astronomy; and technology. (JN)

Science News, 1984

1984-01-01

260

Science News of the Year.  

ERIC Educational Resources Information Center

Reviews important science news stories of 1981 as reported in "Science News." Gives a one-sentence summary and volume and page references for each story. Groups items by topic including space and astronomy, archaeology and anthropology, technology, behavior, science and society, energy, environment, and specific science disciplines. (DC)

Science News, 1981

1981-01-01

261

Science News of the Year.  

ERIC Educational Resources Information Center

Reviews major science news stories of 1988 as reported in the pages of Science News. Covers the areas of anthropology, astronomy, behavior, biology, biomedicine, chemistry, earth sciences, environment, food science, mathematics and computers, paleobiology, physics, science and society, space sciences, and technology. (YP)

Science News, 1988

1988-01-01

262

Science News of the Year.  

ERIC Educational Resources Information Center

Presented is a review of important science news stories of 1989 as reported in the pages of "Science News." Topics include anthropology, astronomy, behavior, biology, biomedicine, chemistry, environment, food science, math and computers, paleobiology, physics, science and society, space sciences, and technology. (CW)

Science News, 1989

1989-01-01

263

Television News Exchanges in Asia.  

ERIC Educational Resources Information Center

In 1984, a project was initiated in Asia under the sponsorship of the Asia Pacific Broadcasting Union that represents a major break-through in achieving a better balance in the collection, editing, and distribution of the world's news. This break-through was the Asiavision Satellite News Exchange, which has made it possible for many Asian…

Flournoy, Don M.

264

News to Use  

NSDL National Science Digital Library

7th grade language arts curriculum -- objective 2b. This project has students look at an online source of news. They review one article and read two others. They answer comprehension questions and look for vocabulary words to look up online as well. The following is a New York Times site with infromation about the earthquake in Haiti. Click on the site and read a little about the disaster. Look at at least four photos. New York Times article on Haiti earthquake Sometimes we miss school because of snow storms. The students in Haiti have missed many days of school ...

Hansen, Mrs.

2010-01-28

265

Predicting text entry speed on mobile phones  

Microsoft Academic Search

We present a model for predicting expert text entry rates for several input methods on a 12-key mobile phone keypad. The model includes a movement component based on Fitts' law and a linguistic component based on digraph, or letter-pair, probabilities. Predictions are provided for one-handed thumb and two-handed index finger input. For the traditional multi-press method or the lesser-used two-key

Miika Silfverberg; I. Scott MacKenzie; Panu Korhonen

2000-01-01

266

Achieving improvements across the HIV treatment cascade: a clinical management algorithm based on IAPAC's entry into and retention in care and antiretroviral therapy adherence guidelines.  

PubMed

Engagement in care is directly linked to achieving HIV viral suppression, yet over the past 2 years analyses of data related to the US HIV epidemic have revealed that many people living with HIV/AIDS are failing to successfully navigate the HIV treatment cascade, with only between an estimated 19% and 28% achieving the ultimate goal of antiretroviral therapy (ART): viral suppression. We propose a clinical management algorithm that captures key operational interventions recommended in recently published guidelines on entry into and retention in care and ART adherence. PMID:23512144

Zuniga, José M; Young, Benjamin

2013-01-01

267

International News and Borrowed News in the New York Times: An Update  

Microsoft Academic Search

This content analysis shows the number of international news items in the New York Times has decreased over the last 22 years. Roughly one in five items contained second-hand or borrowed news (material first disseminated by and attributed to another news organization), though trend analysis indicates increasing news borrowing. Borrowed news was most common in items from Second World (Communist)

Daniel Riffe; Charles F. Aust; Rhonda J. Gibson; Elizabeth K. Viall; Huiuk Yi

1993-01-01

268

Index to NASA News Releases 1995  

NASA Technical Reports Server (NTRS)

This issue of the index to NASA News Releases contains a listing of news releases distributed by the Office of Public Affairs, NASA Headquarters, during 1995. The index is arranged in six sections: Subject index, Personal name index, News release number index, Accession number index, Speeches, and News releases.

1996-01-01

269

The Diffusion of "Shocking" Good News.  

ERIC Educational Resources Information Center

A study of the diffusion of news about the Mormon Church's approval of Blacks for the priesthood revealed that "shocking" good news can ignite the interpersonal communications system, that news has more credibility when obtained from media than when obtained interpersonally, and that people use mass media to verify news obtained interpersonally.…

Haroldsen, Edwin O.; Harvey, Kenneth

1979-01-01

270

Television News and the Miners' Strike.  

ERIC Educational Resources Information Center

A content analysis was performed on all of the BBC (British Broadcasting Corporation) Nine O'Clock News and ITV (Independent Television) News at Ten programs that were broadcast during Britain's year-long miners' strike--March 1984-March 1985--and a four-month sample of Channel 4 news to examine how television news covered a protracted story of…

Cumberbatch, Guy; And Others

271

19 CFR 122.42 - Aircraft entry.  

Code of Federal Regulations, 2011 CFR

...2014-04-01 2014-04-01 false Aircraft entry. 122.42 Section 122.42...TREASURY AIR COMMERCE REGULATIONS Aircraft Entry and Entry Documents; Electronic...Non-Crew Members Onboard Commercial Aircraft Arriving In, Continuing Within,...

2014-04-01

272

OBLIQUE OF THE NORTHEAST END (MAIN ENTRY) AND NORTHWEST SIDE, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

OBLIQUE OF THE NORTHEAST END (MAIN ENTRY) AND NORTHWEST SIDE, WITH FACILITY 346 ON LEFT. - U.S. Naval Base, Pearl Harbor, Joint Intelligence Center, Makalapa Drive in Makalapa Administration Area, Pearl City, Honolulu County, HI

273

Interior view of entry stair into bomb shelter, taken from ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Interior view of entry stair into bomb shelter, taken from below grade, view facing south - U.S. Naval Base, Pearl Harbor, Splinterproof Shelter, Seventh Street between Avenues E & G, Pearl City, Honolulu County, HI

274

Entry Grades and Academic Performance in Nigerian Universities.  

ERIC Educational Resources Information Center

The reliability of Nigeria's entry qualification examinations as a predictor of success at the university level is examined. Results indicate a positive correlation in the science-based fields and very low predictability in the social sciences. (JMF)

Ojo, Folayan

1976-01-01

275

Interior view of entry hall in Communication Center (now Break ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Interior view of entry hall in Communication Center (now Break Room and Storage Area), facing north - MacDill Air Force Base, Fire & Guard House, 2709 Florida Keys Avenue, Tampa, Hillsborough County, FL

276

VIEW OF THE ROOF TRUSSES NEAR THE ENTRY TO THE ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

VIEW OF THE ROOF TRUSSES NEAR THE ENTRY TO THE GYMNASIUM. VIEW FACING WEST - U.S. Naval Base, Pearl Harbor, Gymnasium Building, North Waterfront & Pierce Street near Berth S-13, Pearl City, Honolulu County, HI

277

Poliovirus Cell Entry: Common Structural Themes in Viral Cell Entry Pathways  

PubMed Central

Structural studies of polio- and closely related viruses have provided a series of snapshots along their cell entry pathways. Based on the structures and related kinetic, biochemical, and genetic studies, we have proposed a model for the cell entry pathway for polio- and closely related viruses. In this model a maturation cleavage of a capsid protein precursor locks the virus in a metastable state, and the receptor acts like a transition-state catalyst to overcome an energy barrier and release the mature virion from the metastable state. This initiates a series of conformational changes that allow the virus to attach to membranes, form a pore, and finally release its RNA genome into the cytoplasm. This model has striking parallels with emerging models for the maturation and cell entry of more complex enveloped viruses such as influenza virus and HIV.

Hogle, James M.

2006-01-01

278

Ivanhoe Broadcast News: Medical Breakthroughs  

NSDL National Science Digital Library

From Ivanhoe Broadcast News, this website links to an abundance of medical news stories. Articles can be found under many health categories including Alternative Health, Cardiovascular Health, Sports Medicine, Nutrition, Cancer, Vision, Dental Health, and more. Articles are listed under health categories for women, men, seniors, and children as well. The site also features a News Flash section with daily updates; Medical Headlines; Special Reports; and Discussion Groups. Site visitors looking for additional information will find links to other online resources for a variety of health topics as well.

279

International Boundary News Database (IBRU)  

NSDL National Science Digital Library

The International Boundaries Research Unit (IBRU) at the University of Durham maintains the International Boundary News Database, which consists of more than 10,000 documents related to international boundaries, "including their delimitation, demarcation and management." The documents, spanning from 1991 to the present, are compiled from news sources worldwide. The database may be queried through a simple keyword search or via the Boundary Field, which retrieves all records associated with an international boundary. Searches yield summarized news items, generally one paragraph in length.

280

Single-particle Tracking as a Quantitative Microscopy-based Approach to Unravel Cell Entry Mechanisms of Viruses and Pharmaceutical Nanoparticles  

PubMed Central

Highly sensitive fluorescence microscopy techniques allow single nanoparticles to be tracked during their uptake into living cells with high temporal and spatial resolution. From analysis of the trajectories, random motion can be discriminated from active transport and the average transport velocity and/or diffusion coefficient determined. Such an analysis provides important information regarding the uptake pathway and location of viruses and nanoparticles. In this review, we give an introduction into single-particle tracking (SPT) and determination of the mean-squared displacement. We also give an overview of recent advances in SPT. These include millisecond alternating-laser excitation for removal of spectral crosstalk, alternating wide-field (WF), and total internal reflection fluorescence (TIRF) microscopy for sensitive experiments at the plasma membrane and three-dimensional tracking strategies. Throughout the review, we highlight recent advances regarding the entry (and egress) of natural and artificial viruses obtained via SPT.

Ruthardt, Nadia; Lamb, Don C; Brauchle, Christoph

2011-01-01

281

Philosophy News Service (PNS)  

NSDL National Science Digital Library

Updated daily, this site offers links to online philosophy news and articles from a variety of sources, though most seem to be located in the US or Australia. Recent items included pieces on the ethics of Kosovo, philosophical counseling, Noam Chomsky and Edward Said, an audio symposium on "Genes, Genesis, and God," and several notices of professional interest. Additional features at the site include PhilosophEye, a special essay with related links offering "philosophical perspectives on matters of public interest," a philosophy calendar, a Question of the Week with posted responses, and related links. The PNS also hosts a mailing list, PNS-List, which shares research and professional announcements for philosophers and philosophy students.

1999-01-01

282

Tech News Collection  

NSDL National Science Digital Library

The Illinois Institute of Technology (IIT) started life in 1893 as the Armour Institute, courtesy of funding from Philip Danforth, Sr. who gave $1 million to start a school that would offer courses in engineering, chemistry, architecture, and library science. In 1940, the school merged with the Lewis Institute and received its current name. This intriguing digital collection offers a look into the school's history via the Technology News, which has been the student newspaper since 1928. Visitors can browse past issues from that year up to the current day. The Features area is quite interesting, as it includes direct links to April Fools issues and topical coverage of swine flu outbreaks in 1976 and 2009. The April Fools issue from 1942 is quite a pip, as it includes articles titled "Surrealist Ginks Gab" and "Tennis Toddlers Tersely Terrorize Tirty-Tird Toughs."

2011-01-01

283

Fishery Market News  

NSDL National Science Digital Library

Curious about the economics behind fishing or how fish prices have changed since the 1930s? The National Marine Fisheries Service (NMFS) offers this Website to track the pulse of the fish market, by observing, recording, and reporting current market conditions. In addition to the daily/ weekly pricing reports from markets in Boston, Long Beach, New Orleans, New York, and Seattle, the Fishery Market News Website posts annual summaries of fish prices for several specific fisheries (cod, foreign fisheries), seafood types (clam, cod, crab, croaker, flounder, lobster, pollock, squid, swordfish, or whiting), and fish markets (Fultin Fish Market and New York Frozen). A no-frills site with "just the facts, please," this is an excellent resource for researchers.

284

entry for reduced keyboards: application to Catalan  

Microsoft Academic Search

Users of digital mobile phones have access to an increas- ing number of text-based services but most of them can only use a very re- duced keyword for text entry. Tradi- tionally, this has been solved by means of multiple tapping and delays or next- character keys (e.g. 66(pause)666 for no), which is slow (two taps per letter on average),

Mikel L. Forcada

285

Rarefied Flows of Planetary Entry Capsules  

NASA Technical Reports Server (NTRS)

The impact of rarefaction on entry capsules and spacecraft aerothermodynamics is emphasized for various aeroassist missions. The capability of the direct simulation Monte Carlo (DSMC) method to simulate such flows is demonstrated through examples of validation studies and applications. Several space flight projects and ground-based experiments are reviewed for which rarefaction effects have significant effect on spacecraft performance or experimental measurements. This review clearly demonstrates the significant role that the DSMC method plays in characterizing such flows.

Moss, James N.

1997-01-01

286

Atmospheric maneuvering during Martian entry  

NASA Technical Reports Server (NTRS)

A comparative-advantages study is made of two different Martian atmospheric entry maneuvers, on the basis of calculation results for the case of a vehicle with a maximum L/D ratio of 2.3. Entries from a highly elliptical Martian orbit at 5 km/sec are more difficult than those from a lower altitude and speed orbit at 3.5 km/sec, due to their more stringent guidance requirements. Efforts to reduce the deceleration for the higher speed entry by lift-modulation achieved a 40-percent reduction, but at the cost of a 50-percent decrease in lateral range. The lower-speed entry's gliding trajectory is noted to encounter a far more benign atmospheric environment.

Tauber, Michael E.; Bowles, Jeffrey V.; Yang, Lily

1988-01-01

287

Re-entry Experiment Launch  

NASA Video Gallery

On August 10, 2009, NASA successfully launched the Inflatable Re-entry Vehicle Experiment (IRVE) and proved that spacecraft can use inflatable heat shields to reduce speed and provide protection du...

288

Orion Entry Handling Qualities Assessments  

NASA Technical Reports Server (NTRS)

The Orion Command Module (CM) is a capsule designed to bring crew back from the International Space Station (ISS), the moon and beyond. The atmospheric entry portion of the flight is deigned to be flown in autopilot mode for nominal situations. However, there exists the possibility for the crew to take over manual control in off-nominal situations. In these instances, the spacecraft must meet specific handling qualities criteria. To address these criteria two separate assessments of the Orion CM s entry Handling Qualities (HQ) were conducted at NASA s Johnson Space Center (JSC) using the Cooper-Harper scale (Cooper & Harper, 1969). These assessments were conducted in the summers of 2008 and 2010 using the Advanced NASA Technology Architecture for Exploration Studies (ANTARES) six degree of freedom, high fidelity Guidance, Navigation, and Control (GN&C) simulation. This paper will address the specifics of the handling qualities criteria, the vehicle configuration, the scenarios flown, the simulation background and setup, crew interfaces and displays, piloting techniques, ratings and crew comments, pre- and post-fight briefings, lessons learned and changes made to improve the overall system performance. The data collection tools, methods, data reduction and output reports will also be discussed. The objective of the 2008 entry HQ assessment was to evaluate the handling qualities of the CM during a lunar skip return. A lunar skip entry case was selected because it was considered the most demanding of all bank control scenarios. Even though skip entry is not planned to be flown manually, it was hypothesized that if a pilot could fly the harder skip entry case, then they could also fly a simpler loads managed or ballistic (constant bank rate command) entry scenario. In addition, with the evaluation set-up of multiple tasks within the entry case, handling qualities ratings collected in the evaluation could be used to assess other scenarios such as the constant bank angle maintenance case. The 2008 entry assessment was divided into two sections (see Figure 1). Entry I was the first, high speed portion of a lunar return and Entry II was the second, lower speed portion of a lunar return, which is similar (but not identical) to a typical ISS return.

Bihari, B.; Tiggers, M.; Strahan, A.; Gonzalez, R.; Sullivan, K.; Stephens, J. P.; Hart, J.; Law, H., III; Bilimoria, K.; Bailey, R.

2011-01-01

289

NEWS: Design and creativity  

NASA Astrophysics Data System (ADS)

Delcam, a manufacturing software developer, has supplied substantial funding towards a UK Government initiative intended to revolutionize the study of design and technology in schools. The computer-aided design software for schools (CAD-CAM) programme will give students a bridge into industry by enabling them to employ video links with engineers at companies such as British Aerospace and Rolls Royce. They will then be able to convert their virtual reality designs into a finished product. When the revised National Curriculum comes into effect this year, CAD-CAM will become compulsory from Key Stage 3, reflecting the greater focus on work-related learning, as well as the added importance being given to Information and Communications Technology (ICT) within the curriculum. Under the new scheme, schools can use a range of software designed in the UK (currently used for such items as jet aircraft and Formula One racing cars), which is being made available free of charge. The Design and Technology Association is monitoring the programme and the schools taking part have had to propose targets, focused on curriculum innovation, pupil outcomes and staff development. Still on the theme of design is the `Young Foresight' project launched in January and inviting 13 to 14 year-olds to tackle the challenges of the future through designing a new product for the world of 2020. The aim here is to encourage creativity, enterprise and innovation among young people by giving them an idea of what is involved in the design and development of a successful product. The students will be supported by mentors drawn from the local business community and there will be related BBC schools television programmes early in March with classroom resources, teacher training and an interactive website. The first phase of the initiative, based on 100 schools from across England and Wales, should be completed by autumn 2000, with phase 2 for 3000 schools over a three-year period incorporating a further nine programmes reflecting the work of the national Foresight Panels. The national Foresight programme is about preparing for the future by identifying market drivers, threats and opportunities and using that knowledge to inform the decisions that need to be taken today. Details can be viewed at www.foresight.gov.uk And for those with any remaining untapped ingenuity, the deadline is fast approaching for this year's `Young Engineer for Britain' competition. Young people, either individually or in teams of up to four, are invited to demonstrate their engineering skills in an event with a total prize value of over £65 000. The individual winner takes away a personal prize of £2500 plus a trophy, and their school receives an additional £2500 for engineering teaching equipment. Entry details can be obtained from Young Engineers for Britain, Engineering Council, 10 Maltravers Street, London WC2R 3ER and the closing date is 28 April 2000 .

2000-03-01

290

External Resource: In The News  

NSDL National Science Digital Library

Since the launch of the SOHO spacecraft, there have been numerous news articles highlighting discoveries about the Sun. This activity will gives students the opportunity to learn about those discoveries and to explore the unique challenges that humans fac

1900-01-01

291

National Cancer Institute News Center  

MedlinePLUS

... researchers find that a molecule is linked to aggressive pancreatic cancer NCI Cancer Center News (Posted: 05/ ... during childhood. Study in mice shows that an aggressive type of breast cancer is linked to an ...

292

News and Announcements  

NASA Astrophysics Data System (ADS)

Supplementary Materials The number of supplementary materials that accompany print articles has grown and also become more varied. The new guidelines for lab experiments call for supplementary materials in most cases, so that the actual materials used in lab can be made available. The From Past Issues column edited by Kathryn Williams and many of the technology columns frequently have supplements for JCE Online. An especially interesting supplement that we would like to call to the attention of readers is a collection of videos from the E. O. Lawrence Berkeley National Laboratory, based on interviews with nuclear chemists who have discovered and studied the heaviest elements. These movies accompany the Viewpoints article, "Chemistry of the Heaviest Elements-One Atom at a Time" by Darleane C. Hoffman and Diana M. Lee. The titles of the movies are listed below; illustrative stills are shown at the bottom of the page. Researchers involved with the segments about Lawrencium include Robert Silva, Torbjorn Sikkeland, Matti Nurmia, Robert Latimer, and Albert Ghiorso, all of whom are from the Lawrence Berkeley Laboratory. (QuickTime 3 is needed in order to view the videos; it can be downloaded free from http://www.apple.com.)

  • A Brief Note about Plutonium, by Glenn Seaborg
  • Plutonium and Why It Was Kept a Secret
  • The Prediction of the Actinide Series, by Glenn Seaborg
  • First Chemical Separation of Lawrencium at Lawrence Radiation Laboratory in 1970
  • The HILAC or Heavy-Ion Linear Accelerator
  • Discovery of Lawrencium
  • How To Collect Lawrencium Atoms
  • The Discovery of Element 106-Finally
  • The Naming of Element 106
  • The Limits of Discovering the Heavy Elements
  • What Good Is a Heavy Element?
To see these videos, view the Supplements of http://JChemEd.chem.wisc.edu/Journal/Issues/1999/Mar/abs331.html. People: Glenn Seaborg Glenn Seaborg, frequent contributor and faithful supporter of this Journal, died February 25, 1999, at his home in Lafayette, California, at the age of 86. At the Fall 1998 ACS Meeting in Boston he suffered a serious fall following a stroke, from which he never recovered. One of his last photographs, taken the previous day at a Journal luncheon, appears on page 1360 of the November 1998 issue. His commentary on his long career in chemistry and education appears on page 1520 of the December 1998 issue. Seaborg was a Nobel laureate, discoverer of elements, scientific advisor to presidents, former chancellor of the University of California, former chairman of the Atomic Energy Commission, chairman of the steering committee of the CHEM Study project, founder of Lawrence Hall of Science, , the list goes on and on. He was at the same time a passionate supporter of education. Seaborg published fourteen articles in the Journal between 1951 and 1998. He was interviewed in 1975 by David Ridgway as part of the Impact series (JCE 1975, 52, 70), and that interview is highly recommended reading (see supplement to this article). He received the 1994 ACS George C. Pimentel Award in Chemical Education; his award address was published in the ACS Division of Chemical Education's CHED Newsletter, Fall 1995. Memorial articles with details of his life and his scientific contributions have appeared in The New York Times (Saturday, February 27, 1999, page 1) and Chemical & Engineering News (March 8, 1999, page 29). But there is also the spirit of the man, what he believed in, what he tried to do, what he hoped he had accomplished. A sense of that can be gained from the excerpts that are reprinted below, taken first from the Impact interview and then from the award address. Ridgway: On reflection, now, out of your many contributions to chemistry, is there one that you feel has had more of an impact than others? Seaborg: The discovery of plutonium would answer that question. The impact th

1999-05-01

293

News and Announcements  

NASA Astrophysics Data System (ADS)

News from Journal House Conceptual Questions and Challenge Problems Many readers are trying to modify the way they teach and in so doing are trying to write new types of questions and problems. The Journal has a new online resource, the JCE Internet Conceptual Questions and Challenge Problems Web site, http://jchemed.chem.wisc.edu/JCEWWW/Resources/CQandChP/index.html . The site is a source of questions and problems that can be used in teaching and assessing conceptual understanding and problem solving in chemistry. Here you can find a library of free-response and multiple-choice conceptual questions and challenge problems, tips for writing these questions and problems, and a discussion of types of concept questions. This site is intended to be a means of sharing conceptual questions and challenge problems among chemical educators. It will be as inclusive as possible, and to achieve this readers need to share their questions and alert the authors to references or Web sites. The screen captures shown below should provide a feeling for what you will find when you visit the site. The authors, William R. Robinson and Susan C. Nurrenbern, welcome additions to the library of conceptual questions or other comments or suggestions. Contact them by email, fax, or regular mail. William R. Robinson and Susan C. Nurrenbern, Department of Chemistry, Purdue University, West Lafayette, IN 47907-1393. Bill: phone: 765/494-5453; fax: 765/494-0239; email: wrrobin@purdue.edu. Sue: phone: 765/494-0823; fax: 765/494-0239; email: nurrenbe@purdue.edu. fax: 765/494-0239. 1998 Ford Foundation Fellowships The National Research Council has announced the recipients of the 1998 fellowships for minority scholars. Three categories of fellowships were awarded: 50 to beginning graduate students, 33 to students writing their dissertations, and 28 to recent Ph.D. recipients. There were about 1,000 applicants. For information about the next competition contact the Fellowship Office of the National Research Council, 2101 Constitution Avenue, NW, Washington, DC 20418, via email at infofell@nas.edu, or at http://fellowships.nas.edu. 1998 Pre-Doctoral Fellows Rafael Alcala, University of Wisconsin-Madison, Chemical Engineering Diego J. Díaz, Cornell University, Analytical Chemistry Kanya Lynn Henderson, Colorado State University, Biochemistry Félix Mario Rivas, State University of New York, Buffalo, Organic Chemistry 1998 Dissertation Fellows Kristala Lanett Jones, Arizona State University, Chemical Engineering 1998 Postdoctoral Fellows Edgardo Tabión Farinas, Yale University, Interdisciplinary Chemistry Data Base of Online Courses TeleEducation NB, a province-wide distributed distance learning network in the Canadian province of New Brunswick, has implemented an international online course database of more than 9,000 courses. The database includes public and private courses at all levels from more than 15 countries and includes only those courses that can be completed fully online. Courses vary from graduate-level engineering offerings to simple "How to" courses. The database provides access to courses and programs leading to accredited degrees, diplomas, and certificates. Professional development and personal interest courses are also included. Students can access course information by browsing subject areas or by searching specific fields. Hotlinks connect students directly to the delivering institutions. In the past year, there has been an exponential rise in the number of courses being offered online, from fewer than 2,000 in January 1998 to more than 10,000 in December 1998. It is expected that there will be more than 40,000 online courses by the year 2000. The TeleCampus Online Course Database provides students with a means of finding information on courses that meet their needs. The database can be accessed from TeleCampus at http://telecampus.edu. Change in the Introductory Chemistry Course, an Online Course An online conference, Proposals for Change in the Introductory Chemistry Course, will take place from March 29 to April 10, 1999. The

1999-02-01

294

Available hardware for automated entry control  

SciTech Connect

Automated entry control has become an increasingly important issue at facilities where budget constraints are limiting options for manned entry control points. Ongoing work at Sandia National Laboratories is attempting to establish a data base for use by facility security managers working the problem of how to maintain security on a limited budget. Sandia National Laboratories conducted a performance test of the following biometric verifiers: (1) voice verifier by Alpha Microsystems of Santa Ana, California; (2) signature dynamics verifier by Autosig Systems of Irving, Texas; (3) voice verifier by Ecco Industries of Danvers, Massachusetts (now International Electronics); (4) retinal pattern verifier by EyeDentify of Portland, Oregon; (5) fingerprint verifier by Identix of Sunnyvale, California; and (6) hand geometry verifier by Recognition Systems of San Jose, California.

Holmes, J.P. (Sandia National Lab., Albuquerque, NM (United States))

1990-01-01

295

Rational design of HIV-1 entry inhibitors.  

PubMed

This chapter reviews studies that have used in silico techniques to design or identify potential HIV-1 entry inhibitors targeting cellular receptors CD4, CCR5, and CXCR4 and envelope glycoproteins, gp120 and gp41 of HIV-1. Both structure- and ligand-based design techniques have been used in those studies by applying diverse modeling techniques such as quantitative structure-activity relationship analysis, conformational analysis, molecular dynamics, pharmacophore generation, docking, virtual screening (using docking software and also shape-based ROCS techniques), and fragment-based design. PMID:23568472

Debnath, Asim K

2013-01-01

296

Three-dimensional acceleration planning for atmospheric entry  

NASA Astrophysics Data System (ADS)

The next generation of reusable launch vehicles will benefit from an improved entry guidance algorithm. Improvements have been made to the current Space Shuttle entry guidance algorithm that will provide an ability to handle aborts, reach large crossranges, and provide complete onboard planning capability. Building on the entry guidance algorithm for the Space Shuttle, three versions of a three-dimensional acceleration based entry guidance algorithm have been created and tested. The Space Shuttle entry guidance algorithm is extended to three dimensions by planning the drag profile and the occurrence of bank reversals. The three versions of the planning algorithm that have been developed are a single bank reversal planner, a two bank reversal planner, and a single bank reversal update planner. Tests of the single and two bank reversal versions show that the planning algorithms are capable of producing feasible trajectories for a wide range of various entry conditions. Integration and testing of the update planning algorithm with a feedback linearizing control law in a high fidelity simulation developed by NASA Marshall has demonstrated the algorithm's ability to handle a variety of entry conditions in an onboard environment.

Chen, David Teh-Han

297

Children and Terrorism-Related News: Training Parents in Coping and Media Literacy  

ERIC Educational Resources Information Center

This study examined associations between televised news regarding risk for future terrorism and youth outcomes and investigated the effects of training mothers in an empirically based approach to addressing such news with children. This approach--Coping and Media Literacy (CML)--emphasized modeling, media literacy, and contingent reinforcement and…

Comer, Jonathan S.; Furr, Jami M.; Beidas, Rinad S.; Weiner, Courtney L.; Kendall, Philip C.

2008-01-01

298

Research on Multi-Agent Simulation of Epidemic News Spread Characteristics  

Microsoft Academic Search

The spread of news about an epidemic can easily lead to a social panic. In order to devise measures to control such a panic, it is necessary to consider characteristics of the spread of epidemic news, based on mechanisms at the individual level. In this paper, first, some features of multi-agent simulation are reviewed. Then a multi-agent simulation model of

Xiaoguang Gong; Renbin Xiao

2007-01-01

299

From the Boob Tube to the Black Box: TV News Comprehension from an Information Processing Perspective.  

ERIC Educational Resources Information Center

Based on data drawn from a larger study concerning what people learn from television news broadcasts, this paper suggests ways that researchers might conceptualize audience comprehension of television news. Following a review of the information processing literature, the paper analyzes several conceptualizations taken from the literature and…

Woodall, W. Gill; And Others

300

Further empirical research on Diffusion Theory Paradigm applied in Network News Communication of crisis event  

Microsoft Academic Search

Based on our 2010's study that applied the Diffusion Theory Paradigm to analyze the Network News Communication of Crisis Event, this paper names the idea that the cumulated number of online news discussion follows the S-shaped curve over time in Diffusion Theory field as \\

Dongsheng Liang; Benfu Lv

2011-01-01

301

The use of topic evolution to help users browse and find answers in news video corpus  

Microsoft Academic Search

Earlier research in news video has been focusing mainly on improving retrieval accuracies given the limited amount of extractable video semantics. In this paper, we propose an enhancement to news video searching by leveraging extractable video semantics coupled with relevant external information resources to support event-based analysis; leading to discovery of topic hierarchy for browsing key events and supporting question

Shi-yong Neo; Yuanyuan Ran; Hai-kiat Goh; Yantao Zheng; Tat-seng Chua; Jintao Li

2007-01-01

302

Fixed-Base Simulator Studies of the Ability of the Human Pilot to Provide Energy Management Along Abort and Deep-Space Entry Trajectories  

NASA Technical Reports Server (NTRS)

A simulation study has been made to determine a pilot's ability to control a low L/D vehicle to a desired point on the earth with initial conditions ranging from parabolic orbits to abort conditions along the boost phase of a deep-space mission. The program was conducted to develop procedures which would allow the pilot to perform the energy management functions required while avoiding the high deceleration or skipout region and to determine the information display required to aid the pilot in flying these procedures. The abort conditions studied extend from a region of relatively high flight-path angles at suborbital velocities while leaving the atmosphere to a region between orbital and near-escape velocity outside the atmosphere. The conditions studied included guidance from suborbital and superorbital aborts as well as guidance following return from a deepspace mission. In this paper, the role of the human pilot?s ability to combine safe return abort procedures with guidance procedures has been investigated. The range capability from various abort and entry conditions is also presented.

Young, J. W.; Goode, M. W.

1962-01-01

303

Entry port selection for detecting particle size differences in metered dose inhaler formulations using cascade impaction.  

PubMed

Different sized glass entry ports were evaluated for their drug collection efficiency during aerodynamic particle sizing of metered dose inhalers (MDIs) using cascade impaction. A comparison was made between collection efficiency in the entry port, impactor plates, and filter using the 1 L, 2 L, and 20 L glass entry ports and the USP and twin impinger entry ports. Entry port losses were dependent on the size of entry port selected, with 1-2 L ports showing optimal recovery on impactor plates, compared to the USP entry port. The 1 L entry port was further compared with the USP entry port in its ability to discriminate between subtle changes in particle size distribution (PSD) in an investigational hydrofluoroalkane (HFA)-based MDI formulation. Deliberately induced differences during product manufacture were easily detected using the 1 L entry port with the Andersen cascade impactor. The USP port was unable to distinguish among products with small particle size differences. An alternative entry port such as the 1 L glass entry port used in this study may provide better means of characterizing the PSD during formulation development and stability testing of MDIs. PMID:15000432

Naini, Venkatesh; Chaudhry, Saeed; Berry, Julianne; Sharpe, Stefan; Hart, John; Sequeira, Joel

2004-01-01

304

Template-constrained cyclic sulfopeptide HIV-1 entry inhibitors†  

PubMed Central

Template-constrained cyclic sulfopeptides that inhibit HIV-1 entry were rationally designed based on a loop from monoclonal antibody (mAb) 412d. A focused set of sulfopeptides was synthesized using Fmoc-Tyr(SO3DCV)-OH (DCV = 2,2-dichlorovinyl). Three cyclic sulfopeptides that inhibit entry of HIV-1 and complement the activity of known CCR5 antagonists were identified.

Rudick, Jonathan G.; Laakso, Meg M.; Schloss, Ashley C.; DeGrado, William F.

2013-01-01

305

Reconstruction of the Genesis Entry  

NASA Technical Reports Server (NTRS)

An overview of the reconstruction analyses performed for the Genesis capsule entry is described. The results indicate that the actual entry prior to the drogue deployment failure was very close to the pre-entry predictions. The capsule landed 8.3 km south of the desired target at Utah Test and Training Range. Analysis on infrared video footage (obtained from the tracking stations) during the descent estimated the onset of the capsule tumble at Mach 0.9. Frequency analysis on the infrared video data indicates that the aerodynamics generated for the Genesis capsule reasonably predicted the drag and static stability. Observations of the heatshield support the pre-entry simulation estimates of a small hypersonic angles-of-attack, since there is very little, if any, charring of the shoulder region or the aftbody. Through this investigation, an overall assertion can be made that all the data gathered from the Genesis entry is consistent with flight performance that was close to the nominal preentry prediction. Consequently, the design principles and methodologies utilized for the flight dynamics, aerodynamics, and aerothermodynamics analyses have been corroborated.

Desai, Prasun N.; Qualls, Garry D.; Schoenenberger, Mark

2007-01-01

306

Chemical & Engineering News  

NSDL National Science Digital Library

The American Chemical Society produces the weekly magazine "Chemical & Engineering News" which reports on topics ranging from business to government to education drawn from across the world of chemistry. Although much of the content on the website is password-protected for those with a subscription to the magazine, the fascinating "Multimedia" section of the website is accessible to all visitors. The "Latest Photo Galleries" section has the must see gallery "Another Kind of Landscape" from May 2, 2011, which is about a new book on environmental degradation. There are just five photos, all aerial views, that at first blush look beautiful and like works of art, but upon reading the caption, visitors will learn that the photos are of the run-off from a fertilizer plant, an aluminum producer, and a coal mine. The enlightening and interactive article from June 2007 (under "Other Multimedia") titled "The Incredible Vastness of Data lets visitors visualize the differences between chemical research conducted in 1907 and 2007. Overall, the multimedia has much to offer and warrants several return visits.

307

Radon entry control in new house construction  

SciTech Connect

People exposed to high concentration levels of radon face an increased risk of developing lung cancer. The risk is directly proportional to the length and level of radon exposure. Because of health reasons, it is safer to build new houses with radon mitigation systems installed in slab-on-grade houses. However, the interrelationships between parameters and factors governing radon entry and control are highly complex. A study performed by the University of Florida has examined the effectiveness of different radon entry control approaches. The analysis was based on 47 houses from three research projects conducted by the University of Florida (14 houses), Florida Solar Energy Center (13 houses), and GEOMET Technologies (20 houses). The evaluation of the performance and effectiveness of improved floor slabs, space conditioning, and ventilating systems were analyzed. Statistical analyses of the interrelationship between various parameters were also performed. Study findings such as the important factors in reducing radon entry and the effectiveness of passive construction approach and active subslab depressurization systems are presented in this paper. 9 refs., 10 figs., 3 tabs.

Najafi, F.T.; Lalwani, L.; Li, W.G. [Univ. of Florida, Gainesville, FL (United States)

1995-07-01

308

HIV: cell binding and entry.  

PubMed

The first step of the human immunodeficiency virus (HIV) replication cycle-binding and entry into the host cell-plays a major role in determining viral tropism and the ability of HIV to degrade the human immune system. HIV uses a complex series of steps to deliver its genome into the host cell cytoplasm while simultaneously evading the host immune response. To infect cells, the HIV protein envelope (Env) binds to the primary cellular receptor CD4 and then to a cellular coreceptor. This sequential binding triggers fusion of the viral and host cell membranes, initiating infection. Revealing the mechanism of HIV entry has profound implications for viral tropism, transmission, pathogenesis, and therapeutic intervention. Here, we provide an overview into the mechanism of HIV entry, provide historical context to key discoveries, discuss recent advances, and speculate on future directions in the field. PMID:22908191

Wilen, Craig B; Tilton, John C; Doms, Robert W

2012-01-01

309

HIV: Cell Binding and Entry  

PubMed Central

The first step of the human immunodeficiency virus (HIV) replication cycle—binding and entry into the host cell—plays a major role in determining viral tropism and the ability of HIV to degrade the human immune system. HIV uses a complex series of steps to deliver its genome into the host cell cytoplasm while simultaneously evading the host immune response. To infect cells, the HIV protein envelope (Env) binds to the primary cellular receptor CD4 and then to a cellular coreceptor. This sequential binding triggers fusion of the viral and host cell membranes, initiating infection. Revealing the mechanism of HIV entry has profound implications for viral tropism, transmission, pathogenesis, and therapeutic intervention. Here, we provide an overview into the mechanism of HIV entry, provide historical context to key discoveries, discuss recent advances, and speculate on future directions in the field.

Wilen, Craig B.; Tilton, John C.; Doms, Robert W.

2012-01-01

310

Selection, Optimization, and Pharmacokinetic Properties of a Novel, Potent Antiviral Locked Nucleic Acid-Based Antisense Oligomer Targeting Hepatitis C Virus Internal Ribosome Entry Site ? †  

PubMed Central

We have screened 47 locked nucleic acid (LNA) antisense oligonucleotides (ASOs) targeting conserved (>95% homology) sequences in the hepatitis C virus (HCV) genome using the subgenomic HCV replicon assay and generated both antiviral (50% effective concentration [EC50]) and cytotoxic (50% cytotoxic concentration [CC50]) dose-response curves to allow measurement of the selectivity index (SI). This comprehensive approach has identified an LNA ASO with potent antiviral activity (EC50 = 4 nM) and low cytotoxicity (CC50 >880 nM) targeting the 25- to 40-nucleotide region (nt) of the HCV internal ribosome entry site (IRES) containing the distal and proximal miR-122 binding sites. LNA ASOs targeting previously known accessible regions of the IRES, namely, loop III and the initiation codon in loop IV, had poor SI values. We optimized the LNA ASO sequence by performing a 1-nucleotide walk through the 25- to 40-nt region and show that the boundaries for antiviral efficacy are extremely precise. Furthermore, we have optimized the format for the LNA ASO using different gapmer and mixomer patterns and show that RNase H is required for antiviral activity. We demonstrate that RNase H-refractory ASOs targeting the 25- to 40-nt region have no antiviral effect, revealing important regulatory features of the 25- to 40-nt region and suggesting that RNase H-refractory LNA ASOs can act as potential surrogates for proviral functions of miR-122. We confirm the antisense mechanism of action using mismatched LNA ASOs. Finally, we have performed pharmacokinetic experiments to demonstrate that the LNA ASOs have a very long half-life (>5 days) and attain hepatic maximum concentrations >100 times the concentration required for in vitro antiviral activity.

Laxton, Carl; Brady, Kevin; Moschos, Sterghios; Turnpenny, Paul; Rawal, Jaiessh; Pryde, David C.; Sidders, Ben; Corbau, Romu; Pickford, Chris; Murray, E. J.

2011-01-01

311

Selection, optimization, and pharmacokinetic properties of a novel, potent antiviral locked nucleic acid-based antisense oligomer targeting hepatitis C virus internal ribosome entry site.  

PubMed

We have screened 47 locked nucleic acid (LNA) antisense oligonucleotides (ASOs) targeting conserved (>95% homology) sequences in the hepatitis C virus (HCV) genome using the subgenomic HCV replicon assay and generated both antiviral (50% effective concentration [EC(50)]) and cytotoxic (50% cytotoxic concentration [CC(50)]) dose-response curves to allow measurement of the selectivity index (SI). This comprehensive approach has identified an LNA ASO with potent antiviral activity (EC(50) = 4 nM) and low cytotoxicity (CC(50) >880 nM) targeting the 25- to 40-nucleotide region (nt) of the HCV internal ribosome entry site (IRES) containing the distal and proximal miR-122 binding sites. LNA ASOs targeting previously known accessible regions of the IRES, namely, loop III and the initiation codon in loop IV, had poor SI values. We optimized the LNA ASO sequence by performing a 1-nucleotide walk through the 25- to 40-nt region and show that the boundaries for antiviral efficacy are extremely precise. Furthermore, we have optimized the format for the LNA ASO using different gapmer and mixomer patterns and show that RNase H is required for antiviral activity. We demonstrate that RNase H-refractory ASOs targeting the 25- to 40-nt region have no antiviral effect, revealing important regulatory features of the 25- to 40-nt region and suggesting that RNase H-refractory LNA ASOs can act as potential surrogates for proviral functions of miR-122. We confirm the antisense mechanism of action using mismatched LNA ASOs. Finally, we have performed pharmacokinetic experiments to demonstrate that the LNA ASOs have a very long half-life (>5 days) and attain hepatic maximum concentrations >100 times the concentration required for in vitro antiviral activity. PMID:21502629

Laxton, Carl; Brady, Kevin; Moschos, Sterghios; Turnpenny, Paul; Rawal, Jaiessh; Pryde, David C; Sidders, Ben; Corbau, Romu; Pickford, Chris; Murray, E J

2011-07-01

312

Entry, Descent, and Landing Operations Analysis for the Genesis Entry Capsule  

NASA Technical Reports Server (NTRS)

On September 8, 2004, the Genesis spacecraft returned to Earth after spending 29 months about the sun-Earth libration point (L1) collecting solar wind particles. Four hours prior to Earth arrival, the sample return capsule containing the samples was released for entry and subsequent landing at the Utah Test and Training Range. This paper provides an overview of the entry, descent, and landing trajectory analysis that was performed during the mission operations phase leading up to final approach to Earth. The final orbit determination solution produced an inertial entry flight-path angle of -8.002 deg (which was the desired nominal value) with a 3-sigma error of +/-0.0274 deg (a third of the requirement). The operations effort accurately delivered the entry capsule to the desired landing site. The final landing location was 8.3 km from the target, and was well within the allowable landing area. Overall, the Earth approach operation procedures worked well and there were no issues (logistically or performance based) that arose. As a result, the process of targeting a capsule from deep space and accurately landing it on Earth was successfully demonstrated.

Desai, Prasun N.; Lyons, Daniel T.

2007-01-01

313

Structure of the ionospheric disturbances about planetary entry probes  

NASA Technical Reports Server (NTRS)

Local ionospheric disturbances which would be created by a planetary entry probe are investigated. Competing theories of spacecraft-ambient plasma interactions are used to estimate computationally the perturbations of the plasma, particularly the structure of the near wake behind planetary entry vehicles. The results have bearing on the location and operation of plasma diagnostic instrumentation aboard planetary entry vehicles. Recent estimates of Mars ionospheric properties plus vehicle dimensions and speeds similar to those of the Viking Mars Lander are used to define the parameters essential to the theory. Smaller entry bodies are also considered. Comparisons are made of the results based on the different theories for a given assumed planetary atmosphere, and also with the perturbations a similar vehicle would generate in the earth's ionosphere.

Weil, H.; Jew, H.; Samir, U.

1973-01-01

314

Research News and Highlights 2012 Archive  

Cancer.gov

January 24, 2012 Women with BRCA1 and BRCA2 mutations survive ovarian cancer at higher rates than those without mutations « Previous 1 2 3 Print This Page Research News and Highlights 2012 ArchiveRSS News & Events

315

Society for the History of Psychology news.  

PubMed

Provides recent news for the Society for the History of Psychology. Brief descriptions of recent publications, conference news, and featured books are included. (PsycINFO Database Record (c) 2014 APA, all rights reserved). PMID:24818746

2014-05-01

316

In the News: Current Events Websites.  

ERIC Educational Resources Information Center

Reviews Web sites for current events news that are appropriate for students of various ages. Discusses the possibilities for second language learning and curriculum connections and lists television sites, news magazines, classroom magazines, newspapers, and lesson plans. (LRW)

Byerly, Greg; Brodie, Carolyn S.

2002-01-01

317

Incremental visual text analytics of news story development  

NASA Astrophysics Data System (ADS)

Online news sources produce thousands of news articles every day, reporting on local and global real-world events. New information quickly replaces the old, making it difficult for readers to put current events in the context of the past. Additionally, the stories have very complex relationships and characteristics that are difficult to model: they can be weakly or strongly connected, or they can merge or split over time. In this paper, we present a visual analytics system for exploration of news topics in dynamic information streams, which combines interactive visualization and text mining techniques to facilitate the analysis of similar topics that split and merge over time. We employ text clustering techniques to automatically extract stories from online news streams and present a visualization that: 1) shows temporal characteristics of stories in different time frames with different level of detail; 2) allows incremental updates of the display without recalculating the visual features of the past data; 3) sorts the stories by minimizing clutter and overlap from edge crossings. By using interaction, stories can be filtered based on their duration and characteristics in order to be explored in full detail with details on demand. To demonstrate the usefulness of our system, case studies with real news data are presented and show the capabilities for detailed dynamic text stream exploration.

Krstajic, Milos; Najm-Araghi, Mohammad; Mansmann, Florian; Keim, Daniel A.

2012-01-01

318

Anytime clustering of high frequency news streams  

Microsoft Academic Search

We describe a large scale system for clustering a stream of news articles that was developed as part of the Geospace & Media Tool (GMT). The GMT integrates the news feed with geospatial, census, and human network information to provide a research tool for members of Congress and their staffs. News articles covering the same event are summarized for the

Fabian Moerchen; Klaus Brinker; Claus Neubauer

2007-01-01

319

Making the News: Jobs in TV Journalism  

ERIC Educational Resources Information Center

What do TV news workers do each day? For many of them, contributing to daily news broadcasts has changed greatly over the years. This evolution will likely continue for years to come. And more changes to news production are expected, according to Tom Weir, an associate professor at the University of South Carolina's School of Journalism and Mass…

Csorny, Lauren

2009-01-01

320

Framing analysis: An approach to news discourse  

Microsoft Academic Search

In the American political process, news discourse concerning public policy issues is carefully constructed. This occurs in part because both politicians and interest groups take an increasingly proactive approach to amplify their views of what an issue is about However, news media also play an active role in framing public policy issues. Thus, in this article, news discourse is conceived

Zhongdang Pan; Gerald M. Kosicki

1993-01-01

321

Linking online news and social media  

Microsoft Academic Search

Much of what is discussed in social media is inspired by events in the news and, vice versa, social media provide us with a handle on the impact of news events. We address the following linking task: given a news article, find social media utterances that implicitly reference it. We follow a three-step approach: we derive multiple query models from

Manos Tsagkias; Maarten de Rijke; Wouter Weerkamp

2011-01-01

322

AAPT News Archive (eNNOUNCER)  

NSDL National Science Digital Library

This web archive contains news, deadlines, updates, and information about the AAPT. The AAPT NEWS is published monthly through the AAPT web site. Each issue appears on or about the 15th of each month. It also features recent news from the worlds of physics and teaching, current promotions and programs, and more.

2007-02-05

323

Howard Hughes Medical Institute: Research News  

NSDL National Science Digital Library

For breaking news of interest to the medical research community, see this news metasite from the Howard Hughes Medical Institute. From enzymes to viral infections, or RNA to muscle fibers, this page serves up all the medical research news that's fit to print.

324

"...And Now A Story about Today's News."  

ERIC Educational Resources Information Center

The news media plays an important role in shaping opinions about the character of American society. Through the news, people learn about the prevalence of human benevolence or malevolence. The author conducted several tests to evaluate the effects of news on individuals of various ages and backgrounds. Experimental groups were told that they would…

Hornstein, Harvey A.

325

Researching Media Convergence and Crossmedia News Production  

Microsoft Academic Search

Digitization of production has facilitated changes in the organization and practices of journalism. Technological convergence, media convergence and organizational conver- gence have helped change the way in which news is made. A substantial amount of research has been done on news production in general, and television news in particular. However, little research has been done specifically on the production context

IVAR JOHN ERDAL

326

Learning to model relatedness for news recommendation  

Microsoft Academic Search

With the explosive growth of online news readership, recommending interesting news articles to users has become extremely important. While existing Web services such as Yahoo! and Digg attract users' initial clicks by leveraging various kinds of signals, how to engage such users algorithmically after their initial visit is largely under-explored. In this paper, we study the problem of post-click news

Yuanhua Lv; Taesup Moon; Pranam Kolari; Zhaohui Zheng; Xuanhui Wang; Yi Chang

2011-01-01

327

Network Evening News Coverage of Environmental Risk.  

ERIC Educational Resources Information Center

Focusing on ABC, NBC, and CBS's evening news broadcasts from January 1984 through February 1986, a study examined network news coverage of environmental risk--defined as manmade chemical, biological, and physical agents that create risk in the indoor, outdoor, and occupational environments. Using the Vanderbilt University "Television News Index…

Greenberg, Michael R.; And Others

328

Best Graduate Schools: US News & World Report  

NSDL National Science Digital Library

US News Online allows readers to compare business graduate schools using data in US News's annual Graduate Rankings report. Up to four schools may be selected at a time, and US News will deliver information on admissions, costs, the student body, and employment prospects in addition to business graduate school homepage links.

329

MedlinePlus FAQ: News Coverage  

MedlinePLUS

... Videos & Cool Tools ESPAÑOL Question: I saw a news article on MedlinePlus but now I can't ... this page, please enable JavaScript. Answer: The health news page displays the most recent news. MedlinePlus displays ...

330

An Economic Theory of News Selection.  

ERIC Educational Resources Information Center

Over the years, journalists, social scientists, and government commissions have defined news in a variety of ways, but their definitions consistently lack the notion that, above all, news is a commodity and must sell. Within the journalism profession, and particularly in television news, the potential for conflict between a media corporation's…

McManus, John

331

Equilibrium in Auctions with Entry  

Microsoft Academic Search

The authors model entry incentives in auctions with risk-neutral bidders and characterize a symmetric equilibrium in which the number of entrants is stochastic. The presence of too many potential bidders raises coordination costs that detract from welfare. The authors show that the seller and society can benefit from policies that reduce market thickness (i.e., the relative abundance of buyers). Their

Dan Levin; James L. Smith

1994-01-01

332

Numerical Skip-Entry Guidance  

NASA Technical Reports Server (NTRS)

This paper assesses a preliminary guidance and targeting strategy for accomplishing Skip-Entry (SE) flight during a lunar return-capsule entry flight. One of the primary benefits of flying a SE trajectory is to provide the crew with continuous Continental United States (CONUS) landing site access throughout the lunar month. Without a SE capability, the capsule must land either in water or at one of several distributed land sites in the Southern Hemisphere for a significant portion of a lunar month using a landing and recovery scenario similar to that employed during the Apollo program. With a SE trajectory, the capsule can land either in water at a site in proximity to CONUS or at one of several distributed landing sites within CONUS, thereby simplifying the operational requirements for crew retrieval and vehicle recovery, and possibly enabling a high degree of vehicle reusability. Note that a SE capability does not require that the vehicle land on land. A SE capability enables a longer-range flight than a direct-entry flight, which permits the vehicle to land at a much greater distance from the Entry Interface (EI) point. This does not exclude using this approach to push the landing point to a water location in proximity of CONUS and utilizing water or airborne recovery forces.

Tigges, Michael; Crull, Timothy; Rea, Jeremy; Johnson, Wyatt

2006-01-01

333

Poxvirus entry and membrane fusion  

SciTech Connect

The study of poxvirus entry and membrane fusion has been invigorated by new biochemical and microscopic findings that lead to the following conclusions: (1) the surface of the mature virion (MV), whether isolated from an infected cell or by disruption of the membrane wrapper of an extracellular virion, is comprised of a single lipid membrane embedded with non-glycosylated viral proteins; (2) the MV membrane fuses with the cell membrane, allowing the core to enter the cytoplasm and initiate gene expression; (3) fusion is mediated by a newly recognized group of viral protein components of the MV membrane, which are conserved in all members of the poxvirus family; (4) the latter MV entry/fusion proteins are required for cell to cell spread necessitating the disruption of the membrane wrapper of extracellular virions prior to fusion; and furthermore (5) the same group of MV entry/fusion proteins are required for virus-induced cell-cell fusion. Future research priorities include delineation of the roles of individual entry/fusion proteins and identification of cell receptors.

Moss, Bernard [Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892-0445 (United States)]. E-mail: bmoss@nih.gov

2006-01-05

334

Marketing Mix Reactions to Entry  

Microsoft Academic Search

Initial product, distribution, marketing expenditure, and price reactions by incumbents are examined for 115 entrants into oligopolistic markets. The most common reaction pattern is either no reaction or only a single reaction. It is very unusual for entrants to face reactions across the entire marketing mix. Reactions in the first two years after entry are explained as a function of

William T. Robinson

1988-01-01

335

Water entry of spinning spheres  

Microsoft Academic Search

The complex hydrodynamics of water entry by a spinning sphere are investigated experimentally for low Froude numbers. Standard billiard balls are shot down at the free surface with controlled spin around one horizontal axis. High-speed digital video sequences reveal unique hydrodynamic phenomena which vary with spin rate and impact velocity. As anticipated, the spinning motion induces a lift force on

TADD T. T RUSCOTT; ALEXANDRA H. T ECHET

2009-01-01

336

The Army's Delayed Entry Program  

Microsoft Academic Search

The Delayed Entry Program, which allows individuals to delay reporting for active duty up to 12 months after signing enlistment contracts, is a valuable management tool used by the U.S. Army Recruiting Command and other U.S. military recruiting organizations. Attrition from this program increases recruiting costs and reduces training efficiency. DEP attrition is analyzed here using microdata for individuals who

Cyril E. Kearl; Abraham Nelson

1992-01-01

337

Planetary Landers and Entry Probes  

NASA Astrophysics Data System (ADS)

Preface; Acknowledgements; Part I. Engineering Issues Specific to Entry Probes, Landers or Penetrators: 1. Mission goals and system engineering; 2. Accommodation, launch, cruise and arrival from orbit or interplanetary trajectory; 3. Entering atmospheres; 4. Descent through an atmosphere; 5. Descent to an airless body; 6. Planetary balloons, aircraft, submarines and cryobots; 7. Arrival at a surface; 8. Thermal control of landers and entry probes; 9. Power systems; 10. Communication and tracking of entry probes; 11. Radiation environment; 12. Surface activities: arms, drills, moles and mobility; 13. Structures; 14. Contamination of spacecraft and planets; Part II. Previous Atmosphere/Surface Vehicles and Their Payloads: 15. Destructive impact probes; 16. Atmospheric entry probes; 17. Pod landers; 18. Legged landers; 19. Payload delivery penetrators; 20. Small body surface missions; Part III. 'Case Studies': 21. Surveyor landers; 22. Galileo probe; 23. Huygens; 24. Mars Pathfinder and Sojourner; 25. Deep Space 2 Mars microprobes; 26. Rosetta lander Philae; 27. Mars exploration rovers: Spirit and Opportunity; Appendix: Some key parameters for bodies in the Solar System; List of acronyms; Bibliography; References; Index.

Ball, Andrew; Garry, James; Lorenz, Ralph; Kerzhanovich, Viktor

2010-02-01

338

A Martian entry propagation study  

Microsoft Academic Search

The interaction of an electromagnetic wave with the shock-induced plasma flow field generated around a blunt body capsule as it encounters the planetary atmosphere of Mars is examined. From two preliminary engineering models of the Martian atmosphere and the estimated entry-trajectory characteristics of the capsule, it appears that the communication links to and from the capsule may be blacked out

John D. Nordgard

1976-01-01

339

SPANISH COMPANY FOREIGN MARKET ENTRY  

Microsoft Academic Search

The aim of this paper is to analyse the determinants of diversification mode (acquisition versus greenfield) through foreign direct investment considering various theories, such as those of mergers and acquisitions, transaction costs, the learning organisation, the institutional context of the company and the cultural environment of the host country, and to analyse the determinants of entry mode combining diversification mode

Francisco J. Más; Felipe Ruiz Moreno

2003-01-01

340

Connecting News With the National Science Education Standards 2009  

NSDL National Science Digital Library

This online publication includes the best 2009 posts from the Connecting News With the National Science Education Standards blog which is written for middle school science teachers. The posts provide engaging lessons that integrate the latest in scientific research in the news and provide ideas for turning the current event into an inquiry-based, standards-related learning experience for students. The topics range from polar bears to H1N1 virus. This format allows for flipping of pages, zooming, and sharing via a variety of formats

2010-05-01

341

Predictors of student success in entry-level science courses  

NASA Astrophysics Data System (ADS)

Although the educational evaluation process is useful and valuable and is supported by the Higher Education Act, a strong research base for program evaluation of college entry-level science courses is still lacking. Studies in science disciplines such as, biology, chemistry, and physics have addressed various affective and demographic factors and their relationships to student achievement. However, the literature contains little information that specifically addresses student biology content knowledge skills (basics and higher order thinking skills) and identifies factors that affect students' success in entry-level college science courses. These gate-keeping courses require detailed evaluation if the goal of an institution is to increase students' performance and success in these courses. These factors are, in fact, a stepping stone for increasing the number of graduates in Science, Technology, Engineering, and Mathematics (STEM) majors. The present study measured students' biology content knowledge and investigated students' performance and success in college biology, chemistry, and physics entry-level courses. Seven variables---gender, ethnicity, high school Grade Point Average (GPA), high school science, college major, school financial aid support, and work hours were used as independent variables and course final performance as a dichotomous dependent variable. The sample comprised voluntary student participants in entry-level science courses. The study attempted to explore eight research questions. Content knowledge assessments, demographic information analysis, multiple regression analysis, and binary logistic regression analysis were used to address research questions. The results suggested that high school GPA was a consistently good predictor of students' performance and success in entry-level science courses. Additionally, high school chemistry was a significant predictor variable for student success in entry-level biology and chemistry courses. Similarly, students' performance and success in entry-level physics courses were influenced by high school physics. Finally, the study developed student success equation with high school GAP and high school chemistry as good predictors of students' success in entry-level science courses.

Singh, Mamta K.

342

Inhibition of influenza H7 hemagglutinin-mediated entry.  

PubMed

The recent outbreak of H7N9 influenza in China is of high concern to public health. H7 hemagglutinin (HA) plays a critical role in influenza entry and thus HA presents an attractive target for antivirals. Previous studies have suggested that the small molecule tert-butyl hydroquinone (TBHQ) inhibits the entry of influenza H3 HA by binding to the stem loop of HA and stabilizing the neutral pH conformation of HA, thereby disrupting the membrane fusion step. Based on amino acid sequence, structure and immunogenicity, H7 is a related Group 2 HA. In this work we show, using a pseudovirus entry assay, that TBHQ inhibits H7 HA-mediated entry, as well as H3 HA-mediated entry, with an IC50 ~ 6 µM. Using NMR, we show that TBHQ binds to the H7 stem loop region. STD NMR experiments indicate that the aromatic ring of TBHQ makes extensive contact with the H7 HA surface. Limited proteolysis experiments indicate that TBHQ inhibits influenza entry by stabilizing the H7 HA neutral pH conformation. Together, this work suggests that the stem loop region of H7 HA is an attractive target for therapeutic intervention and that TBHQ, which is a widely used food preservative, is a promising lead compound. PMID:24194835

Antanasijevic, Aleksandar; Cheng, Han; Wardrop, Duncan J; Rong, Lijun; Caffrey, Michael

2013-01-01

343

Foreign Policy News in the 1980 Presidential Election Campaign.  

ERIC Educational Resources Information Center

A survey was conducted to determine the extent and content of newspaper coverage of foreign policy issues in the 1980 United States presidential campaign. Fifty daily newspapers from every region of the country were selected randomly based on circulation. A list of 757 news events was divided into party and nonparty events, and the party events…

Stovall, James Glen

344

‘Going public’: constructing the personal in a television news interview  

Microsoft Academic Search

In this article I examine how a ‘private’, inside story was constructed through an extended news interview (‘Tonight’ with Trevor Macdonald, ITV1) drawing on models of both the experiential and the accountable broadcast interview. The analysis, based on aspects of adjacency sequencing, question\\/ response design, and narrative organization, explores the ways in which a personal account is elicited about an

Joanna Thornborrow

2010-01-01

345

Learning approaches for detecting and tracking news events  

Microsoft Academic Search

The authors extend existing supervised-learning and unsupervised-clustering algorithms to allow document classification based on the information content and temporal aspects of news events. They've adapted several IR and machine learning techniques for effective event detection and tracking. The article discusses our research using manually segmented documents

Y. Yang; J. G. Carbonell; R. D. Brown; T. Pierce; B. T. Archibald; X. Liu

1999-01-01

346

A Bilingual TV News-to-Document Indexing System  

Microsoft Academic Search

Based on a bi-lingual speech recognition engine and a parallel text alignment technique, we initially developed an audio search engine for indexing bilingual broadcast news to documents found on the World Wide Web (WWW). First, the automatic audio segmentation technique is used for extracting the anchor streams, and then the speech recognizer transformed the bilingual audio data to tonal syllable

Dau-Cheng Lyu; Ren-Yuan Lyu; Yuang-chin Chiang; Chun-Nan Hsu

347

Agricultural Market News Programming of Wisconsin Radio and Television Stations.  

ERIC Educational Resources Information Center

This study was designed to determine what Wisconsin's 92 AM and 107 FM radio and 18 television stations were providing as agricultural market information programming. Data were collected via a two-phase survey. It was found that the number of stations giving farm and market news were 79% of AM, 56% of FM, and 1% of television stations based on a…

Kroupa, Eugene A.; And Others

348

Teaching Composition to Re-Entry Students  

ERIC Educational Resources Information Center

Describes the Women's Re-Entry Program at Diablo Valley College which uses structured teaching methods to alleviate the two principal weaknesses found in English compositions written by re-entry women, vagueness and lack of organization. (TP)

Foulkes, Natalie; Taines, Beatrice

1978-01-01

349

46 CFR 169.841 - Logbook entries.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Logbook entries. 169.841 Section 169.841 Shipping COAST GUARD, DEPARTMENT OF HOMELAND... Operations Tests, Drills, and Inspections § 169.841 Logbook entries. (a) Each vessel...

2013-10-01

350

19 CFR 141.4 - Entry required.  

Code of Federal Regulations, 2013 CFR

...HOMELAND SECURITY; DEPARTMENT OF THE TREASURY (CONTINUED) ENTRY OF MERCHANDISE Liability for Duties and Requirement To Enter Merchandise § 141.4 Entry required. (a) General. All merchandise imported into the United States is...

2013-04-01

351

Sherpa moving mass entry descent landing system  

NASA Technical Reports Server (NTRS)

We describe Sherpa - a Strap-on High-altitude Entry Reconnaissance and Precision Aeromaneuver system that utilizes a moving mass system within an entry capsule to land a spacecraft precisely onto the surface of Mars.

Balaram, J.

2005-01-01

352

Metal-based nanoparticle interactions with the nervous system: The challenge of brain entry and the risk of retention in the organism  

EPA Science Inventory

This review of metal and metal-oxide based nanoparticles focuses on factors that influence their distribution into the nervous system, evidence that they enter brain parenchyma, and nervous system responses. Emphasis is placed on gold as a model metal-based nanoparticle and for r...

353

2002 Industry Studies: News Media.  

National Technical Information Service (NTIS)

American journalism is in the midst of a transition unlike any it has experienced in the 225-year history of the republic. The news industry today is facing the proliferation of distribution of outlets, fragmentation and shifting demographics of the audie...

P. Alfieri G. Bender G. Clark J. W. Coleman C. Dellas

2002-01-01

354

Science News of the Year.  

ERIC Educational Resources Information Center

This is a review of important science news stories of 1990 as reported in the pages of this journal. Areas covered include anthropology, astronomy, behavior, biology, biomedicine, chemistry, computers and math, earth sciences, environment, food science, materials science, paleobiology, physics, science and society, and space sciences. (CW)

Science News, 1990

1990-01-01

355

NABE News, 2000-2001.  

ERIC Educational Resources Information Center

This document contains the 2000-2001 issues of the "NABE News," a magazine about bilingual education. The theme of each issue is: (1) "Back to School: Anti-Bilingual Ballot Initiatives To Affect Thousands of LEP Students"; (2) "Serving Emerging Populations: School Districts Re-Tool To Respond to New Students' Needs"; (3) "NABE Celebrates 25 Years…

Sosa, Alicia, Ed.

2001-01-01

356

Peak atmospheric entry temperature of micrometeorites  

NASA Astrophysics Data System (ADS)

We present numerical calculations of the peak temperatures experienced by micrometeorites during atmospheric entry. Results are given for particle diameters between 2 and 50 micrometers and for entry velocities between 10 and 25 km/s. A material density of 2 g/cu cm and an entry angle of 45 deg are used for the calculation, but the results presented here can be easily re-interpreted for other densities and for vertical entry.

Love, S. G.; Brownlee, D. E.

1994-01-01

357

Are patents strategic barriers to entry?  

Microsoft Academic Search

Patent protection restricts entry rather than preventing it. In case of a process innovation, it forces a potential entrant to sufficiently differentiate his production technology. We investigate whether a patentholder threatened by entry can strategically renew her patent. For low demand, the patent renewal is sufficient to deter entry, whereas a high demand attracts competitor, even if there is a

Corinne Langinier

2004-01-01

358

Flavivirus Entry Receptors: An Update  

PubMed Central

Flaviviruses enter host cells by endocytosis initiated when the virus particles interact with cell surface receptors. The current model suggests that flaviviruses use at least two different sets of molecules for infectious entry: attachment factors that concentrate and/or recruit viruses on the cell surface and primary receptor(s) that bind to virions and direct them to the endocytic pathway. Here, we present the currently available knowledge regarding the flavivirus receptors described so far with specific attention to C-type lectin receptors and the phosphatidylserine receptors, T-cell immunoglobulin and mucin domain (TIM) and TYRO3, AXL and MER (TAM). Their role in flavivirus attachment and entry as well as their implication in the virus biology will be discussed in depth.

Perera-Lecoin, Manuel; Meertens, Laurent; Carnec, Xavier; Amara, Ali

2013-01-01

359

Story-related caption detection and localization in news video  

NASA Astrophysics Data System (ADS)

We propose a method to detect and localize story-related subject captions in news video. Most caption detection and localization algorithms attempt to detect as many captions as possible; however, a news picture may contain many types of captions that are unrelated to the story. To facilitate fast and accurate access to news video content, a method for detecting and localizing the story-related caption is necessary. This paper addresses two problems in texture-based caption detection and localization: the time-consuming computation of features, and the clutter of caption detection results. We address these problems by first identifying the subject caption region based on the frequency of text occurrence. Then, we detect the subject caption frame as it first appears onscreen. Finally, the texture-based caption localization procedure is performed on the subject caption region in subject captions' beginning frames. Using this method decreases the computation time significantly. Additionally, the unrelated types of text are also filtered out, and only the subject caption is detected and localized. Experimental results show that the proposed method can quickly and robustly detect subject captions from news video.

Lee, Chien-Cheng; Shih, Cheng-Yuan; Huang, Hao-Ming

2009-03-01

360

2. WEST REAR, WITH PORTHOLE ESCAPE HATCH ABOVE ENTRY DOOR. ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

2. WEST REAR, WITH PORTHOLE ESCAPE HATCH ABOVE ENTRY DOOR. - Edwards Air Force Base, South Base Sled Track, Firing & Control Blockhouse for 10,000-foot Track, South of Sled Track at midpoint of 20,000-foot track, Lancaster, Los Angeles County, CA

361

12. DETAIL, ENTRY STAIRWELL TO CABLE TUNNEL, LAUNCHING PAD IN ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

12. DETAIL, ENTRY STAIRWELL TO CABLE TUNNEL, LAUNCHING PAD IN THE LEFT DISTANCE, TRACKSIDE CAMERA STAND AT TOP CENTER. - Edwards Air Force Base, South Base Sled Track, Firing Control Blockhouse, South of Sled Track at east end, Lancaster, Los Angeles County, CA

362

11. ENTRY STAIRWELL TO CABLE TUNNEL. REMAINS OF ELECTRICAL DISTRIBUTION ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

11. ENTRY STAIRWELL TO CABLE TUNNEL. REMAINS OF ELECTRICAL DISTRIBUTION STATIONS AT LEFT, TRACKSIDE CAMERA STAND AT FAR RIGHT. Looking northeast toward launch pad. - Edwards Air Force Base, South Base Sled Track, Firing Control Blockhouse, South of Sled Track at east end, Lancaster, Los Angeles County, CA

363

18. CONTEXT VIEW LOOKING WEST OF BUILDING 345 (ENTRY CONTROL ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

18. CONTEXT VIEW LOOKING WEST OF BUILDING 345 (ENTRY CONTROL BUILDING) IN STORAGE AREA WITH EAST LORING LAKE IN BACKGROUND. - Loring Air Force Base, Weapons Storage Area, Northeastern corner of base at northern end of Maine Road, Limestone, Aroostook County, ME

364

10. ENTRY STAIRWELL TO CABLE TUNNEL, ABOUT THREE QUARTERS THE ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

10. ENTRY STAIRWELL TO CABLE TUNNEL, ABOUT THREE QUARTERS THE DISTANCE TO THE SLED LAUNCHING PAD FROM THE FIRING CONTROL BLOCKHOUSE 0545. Looking west northwest. - Edwards Air Force Base, South Base Sled Track, Firing Control Blockhouse, South of Sled Track at east end, Lancaster, Los Angeles County, CA

365

Fragmentation and ablation during entry  

SciTech Connect

This note discusses objects that both fragment and ablate during entry, using the results of previous reports to describe the velocity, pressure, and fragmentation of entering objects. It shows that the mechanisms used there to describe the breakup of non-ablating objects during deceleration remain valid for most ablating objects. It treats coupled fragmentation and ablation during entry, building on earlier models that separately discuss the entry of objects that are hard, whose high heat of ablation permits little erosion, and those who are strong whose strength prevents fragmentation, which are discussed in ``Radiation from Hard Objects,`` ``Deceleration and Radiation of Strong, Hard, Asteroids During Atmospheric Impact,`` and ``Meteor Signature Interpretation.`` This note provides a more detailed treatment of the further breakup and separation of fragments during descent. It replaces the constraint on mass per unit area used earlier to determine the altitude and magnitude of peak power radiation with a detailed analytic solution of deceleration. Model predictions are shown to be in agreement with the key features of numerical calculations of deceleration. The model equations are solved for the altitudes of maximum radiation, which agree with numerical integrations. The model is inverted analytically to infer object size and speed from measurements of peak power and altitude to provide a complete model for the approximate inversion of meteor data.

Canavan, G.H.

1997-09-01

366

Soviet News and Propaganda Analysis Based on Red Star (The Official Newspaper of the Soviet Defense Establishment) for the Period 1-28 February 1983. Volume 3, Number 2.  

National Technical Information Service (NTIS)

Contents includes: Soviet News and Propaganda Analysis for the Period 1 - February 1983; Soviet Perceptions of International Events; Coverage of Soviet Domestic Issues and Military Topics; Soviet Military Topics; and A Selection of Propaganda Cartoons.

1983-01-01

367

Using News Assignments to Develop Skills for Learning about Science from Public Information Sources  

ERIC Educational Resources Information Center

News assignments based on contemporary issues with a scientific basis are used in two general education chemistry courses for nonmajors to develop learning skills. Students' favorable responses are observed towards the assignments.

Wakzak, Mary M.

2007-01-01

368

Past, present, and future of entry inhibitors as HIV microbicides.  

PubMed

Preventing the transmission of human immunodeficiency virus (HIV) is the main goal of numerous studies trying to develop an effective vaccine and microbicide agents. Here we review the use of antiretroviral drugs to inhibit viral entry as potential HIV microbicides. After the failure of nonoxynol-9 microbicide strategies shifted towards the use of compounds creating a physical barrier to virus attachment (e.g., surfactants) or inhibit the virus in the vaginal milieu (e.g., polyanions). These early, non-specific inhibitors showed promise in both in vitro and in vivo(non-human primates) studies but provided only modest protection from HIV transmission in clinical efficacy trials. The next generation of HIV entry microbicides was based on specifically blocking virus from entering host cells by targeting CD4 attachment, gp120 binding, and virus-cell membrane fusion events. Although protection from an SIV-HIV hybrid was evident in non-human primates treated and challenged in the vaginal cavity, none of these compounds have advanced to clinical trials as a microbicide. Here we will discuss the reasons for these failures, including the selection of drug resistant HIV variants, which raises questions as to the future of broadly effective microbicides based on HIV entry inhibitors. The outcome of continued research and potential efficacy trials on the next generation of entry inhibitors might reveal whether or not an effective entry microbicide can be developed. PMID:22264042

Gibson, Richard M; Arts, Eric J

2012-01-01

369

To Kill a Messenger; Television News and the Real World.  

ERIC Educational Resources Information Center

From his vantage point as News Director of CBS News in Washington, the author examines the role of television news in our society and gives an insider's view of the day-to-day process of selecting and presenting news. Highlighting the book are in-depth discussions of past and recent news events. The Nixon "Checkers" speech, John Kennedy's fight to…

Small, William

370

Saturn Science from Entry Probes  

NASA Astrophysics Data System (ADS)

Data from atmospheric entry probe missions at the giant planets could uniquely discriminate between competing theories of solar system formation and the origin and evolution of the giant planets and their atmospheres, providing for valuable comparative studies of giant planets as well as providing a laboratory for studying the atmospheric chemistries, dynamics, and interiors of all the planets including Earth. The giant planets also represent a valuable link to extrasolar planetary systems. For these reasons, a Saturn Probe mission with a shallow probe is ranked by the recent U.S. Planetary Science Decadal Survey as a high priority for a New Frontiers class mission. Atmospheric constituents needed to constrain theories of solar system formation and the origin and evolution of the giant planets could be accessed and sampled by shallow entry probes. Many important constituents are either spectrally inactive or are beneath an atmospheric overburden that is optically thick at useful wavelengths and are therefore not remotely accessible by flyby or orbiting spacecraft. A small, scientifically focused shallow entry probe mission could make critical abundance measurements of key constituents, and could measure profiles of atmospheric structure and dynamics at a vertical resolution that is significantly higher than could be achieved by remote sensing techniques. The Galileo mission began the detailed study of the solar system's two gas giants by dropping an entry probe into the atmosphere of Jupiter and deploying an orbiter around Jupiter. In 2016-2017 the Juno mission will make measurements of Jupiter's deep oxygen abundance, and gravitational and magnetic fields. In the same epoch, the Cassini orbiter is planned to pursue a set of Juno-like orbits to make comparable gravitational and magnetic field measurements of Saturn. A Saturn atmospheric entry probe would complete the quartet of missions needed for a comparative study of the two gas giants, leading to improved models of solar system formation. A highly focused entry probe mission at Saturn carrying a minimal science payload could address unique and critical science while fitting within existing program budget caps. Fundamental measurements include abundances of the noble gases He, Ne, Ar, Kr, and Xe and, abundances of key isotopic ratios 4He/3He, D/H, 15N/14N, 18O/16O, and 13C/12C. Detection of disequilibrium species CO, PH3, AsH3, and GeH4 is diagnostic of deeper internal processes and dynamics of the atmosphere along the probe descent. Abundances of these key constituents, as well as carbon which does not condense at Saturn, sulfur which is expected to be well-mixed below the 4 to 5-bar ammonium hydrosulfide (NH4SH) cloud, and gradients of nitrogen below the NH4SH cloud and oxygen in the upper layers of the H2O and H2O-NH4 solution cloud, could be measured by an entry probe descending through 10 bars. In concert with the results from Galileo, Cassini, and Juno, a shallow Saturn probe capable of measuring abundances of key constituents not accessible by a remote sensing mission would provide critical measurements enabling a comparison of composition and dynamical processes on the giant planets while also providing an improved context for understanding exoplanets.

Atkinson, David H.; Coustenis, Athena; Lunine, Jonathan; Simon-Miller, Amy; Atreya, Sushil; Brinckerhoff, William; Colaprete, Anthony; Guillot, Tristan; Mahaffy, Paul; Reh, Kim; Spilker, Linda; Spilker, Tom; Webster, Chris

2013-04-01

371

19 CFR 143.35 - Procedure for electronic entry summary.  

Code of Federal Regulations, 2013 CFR

...2013-04-01 false Procedure for electronic entry summary. 143.35 Section 143...CONTINUED) SPECIAL ENTRY PROCEDURES Electronic Entry Filing § 143.35 Procedure for electronic entry summary. In order...

2013-04-01

372

Coordinated observation of the dayside magnetospheric entry and exit of the THEMIS satellites with ground-based auroral imaging in Antarctica  

Microsoft Academic Search

Data from the five-satellite Time History of Events and Macroscale Interactions during Substorms (THEMIS) constellation suitably located to study solar wind magnetospheric coupling during the austral winter of 2007 were compared to data from ground-based all-sky imagers (ASIs) at South Pole (74° magnetic latitude) and at AGO-1 (80° magnetic latitude). The THEMIS constellation entered and exited the magnetosphere near magnetic

S. B. Mende; H. U. Frey; J. McFadden; C. W. Carlson; V. Angelopoulos; K.-H. Glassmeier; D. G. Sibeck; A. Weatherwax

2009-01-01

373

Viral entry mechanisms: the increasing diversity of paramyxovirus entry  

PubMed Central

The paramyxovirus family contains established human pathogens such as measles virus and human respiratory syncytial virus, and emerging pathogens including the Hendra and Nipah viruses and the recently identified human metapneumovirus. Two major envelope glycoproteins, the attachment protein and the fusion protein, promote the processes of viral attachment and virus-cell membrane fusion required for entry. While common mechanisms of fusion protein proteolytic activation and the mechanism of membrane fusion promotion have been shown in recent years, considerable diversity exists in the family related to receptor binding and the potential mechanisms of fusion triggering.

Smith, Everett Clinton; Popa, Andreea; Chang, Andres; Masante, Cyril; Dutch, Rebecca Ellis

2009-01-01

374

Comprehensive Analysis of Ebola Virus GP1 in Viral Entry  

PubMed Central

Ebola virus infection is initiated by interactions between the viral glycoprotein GP1 and its cognate receptor(s), but little is known about the structure and function of GP1 in viral entry, partly due to the concern about safety when working with the live Ebola virus and the difficulty of manipulating the RNA genome of Ebola virus. In this study, we have used a human immunodeficiency virus-based pseudotyped virus as a surrogate system to dissect the role of Ebola virus GP1 in viral entry. Analysis of more than 100 deletion and amino acid substitution mutants of GP1 with respect to protein expression, processing, viral incorporation, and viral entry has allowed us to map the region of GP1 responsible for viral entry to the N-terminal 150 residues. Furthermore, six amino acids in this region have been identified as critical residues for early events in Ebola virus entry, and among these, three are clustered and are implicated as part of a potential receptor-binding pocket. In addition, substitutions of some 30 residues in GP1 are shown to adversely affect GP1 expression, processing, and viral incorporation, suggesting that these residues are involved in the proper folding and/or overall conformation of GP. Sequence comparison of the GP1 proteins suggests that the majority of the critical residues for GP folding and viral entry identified in Ebola virus GP1 are conserved in Marburg virus. These results provide information for elucidating the structural and functional roles of the filoviral glycoproteins and for developing potential therapeutics to block viral entry.

Manicassamy, Balaji; Wang, Jizhen; Jiang, Haiqing; Rong, Lijun

2005-01-01

375

Entry, Descent, and Landing Operations Analysis for the Stardust Entry Capsule  

NASA Technical Reports Server (NTRS)

On the morning of January 15, 2006, the Stardust capsule successfully landed at the Utah Test and Training range in northwest Utah returning cometary samples from the comet Wild-2. An overview of the entry, descent, and landing (EDL) trajectory analysis that was performed for targeting during the mission operations phase upon final approach to Earth is described. The final orbit determination solution produced an inertial entry flight-path angle of -8.21 deg (the desired nominal value) with a 3-sigma uncertainty of +/-0.0017 deg (2% of the requirement). The navigation and EDL operations effort accurately delivered the entry capsule to the desired landing site. The final landing location was 8.1 km from the target, which was well within the allowable landing area. Overall, the Earth approach operation procedures worked well and there were no issues (logistically or performance based) that arose. As a result, the process of targeting a capsule from an interplanetary trajectory and accurately landing it on Earth was successfully demonstrated.

Desai, Prasun N.; Lyons, Dan T.; Tooley, Jeff; Kangas, Julie

2008-01-01

376

Envelope Protein Dynamics in Paramyxovirus Entry  

PubMed Central

ABSTRACT Paramyxoviruses include major pathogens with significant global health and economic impact. This large family of enveloped RNA viruses infects cells by employing two surface glycoproteins that tightly cooperate to fuse their lipid envelopes with the target cell plasma membrane, an attachment and a fusion (F) protein. Membrane fusion is believed to depend on receptor-induced conformational changes within the attachment protein that lead to the activation and subsequent refolding of F. While structural and mechanistic studies have considerably advanced our insight into paramyxovirus cell adhesion and the structural basis of F refolding, how precisely the attachment protein links receptor engagement to F triggering remained poorly understood. Recent reports based on work with several paramyxovirus family members have transformed our understanding of the triggering mechanism of the membrane fusion machinery. Here, we review these recent findings, which (i) offer a broader mechanistic understanding of the paramyxovirus cell entry system, (ii) illuminate key similarities and differences between entry strategies of different paramyxovirus family members, and (iii) suggest new strategies for the development of novel therapeutics.

Plattet, Philippe; Plemper, Richard K.

2013-01-01

377

Giving Bad News: A Qualitative Research Exploration  

PubMed Central

Background: The manner in which healthcare professionals deliver bad news affects the way it is received, interpreted, understood, and dealt with. Despite the fact that clinicians are responsible for breaking bad news, it has been shown that they lack skills necessary to perform this task. Objectives: The purpose of this study was to explore Iranian mothers’ experiences to receive bad news about their children cancer and to summarize suggestions for improving delivering bad news by healthcare providers. Materials and Methods: A qualitative approach using content analysis was adopted. Semi-structured interviews were conducted with 14 mothers from two pediatric hospitals in Iran. Results: Five major categories emerged from the data analysis, including dumping information, shock and upset, emotional work, burden of delivering bad news to the family members, and a room for multidisciplinary approach. Conclusions: Effective communication of healthcare team with mothers is required during breaking bad news. Using multidisciplinary approaches to prevent harmful reactions and providing appropriate support are recommended.

Aein, Fereshteh; Delaram, Masoumeh

2014-01-01

378

Base-catalyzed tandem Michael/dehydro-Diels-Alder reaction of ?,?-dicyanoolefins with electron-deficient 1,3-conjugated enynes: a facile entry to angularly fused polycycles.  

PubMed

Angularly fused carbocyclic frameworks and their heteroatom-substituted analogues exist in many natural products that display a broad and interesting range of biological activities. Preparation of polycyclic products by cycloaddition reactions have been the long-standing hot topic in the synthetic community. Dehydro-Diels-Alder (DDA) reactions are one class of dehydropericyclic reactions that are derived conceptually by systematic removal of hydrogen atom pairs. A base-promoted tandem Michael addition and DDA reaction of ?,?-dicyanoolefins with electron-deficient 1,3-conjugated enynes was realized in which a DDA reaction takes place between the arylalkynes and electron-deficient tetrasubstituted olefin. The control experiments support the stepwise anionic reaction pathway rather than the concerted reaction pathway. PMID:24302563

Zhang, Mingrui; Zhang, Junliang

2014-01-01

379

News from Galactic Black Holes  

NASA Astrophysics Data System (ADS)

Present status of the possible black hole microlensing events and the present understanding of high frequency quasi-periodic oscillations in systems containing black hole candidates (BHCs) are briefly discussed. The growing evidence for the presence of the event horizons around some compact objects is reviewed. Finally, the news from four individual objects (SS 433, GX 339-4, CI Cam and Cyg X-3) are presented and the updated list of BHCs, containing 49 objects is given.

Zió?kowski, Janusz

2003-12-01

380

Science@NASA: Headline News  

NSDL National Science Digital Library

This site features news articles and features that highlight research from NASA's current space missions. The home page provides links to current headline stories and recent stories on space science, astronomy, living in space, Earth science, physical and biological sciences, and advances in technology. The stories are available as podcasts, which can be downloaded or played from the web site, and as illustrated transcripts (text). There is also an archive of stories dating back to 1996.

381

Implementation of Chest X-ray Observation Report Entry System  

PubMed Central

Objectives X-rays are widely used in medical examinations. In particular, chest X-rays are the most frequent imaging test. However, observations are usually recorded in a free-text format. Therefore, it is difficult to standardize the information provided to construct a database for the sharing of clinical data. Here, we describe a simple X-ray observation entry system that can interlock with an electronic medical record system. Methods We investigated common diagnosis indices. Based on the indices, we have designed an entry system which consists of 5 parts: 1) patient lists, 2) image selection, 3) diagnosis result entry, 4) image view, and 5) main menu. The X-ray observation results can be extracted in an Excel format. Results The usefulness of the proposed system was assessed in a study using over 500 patients' chest X-ray images. The data was readily extracted in a format that allowed convenient assessment. Conclusions We proposed the chest X-ray observation entry system. The proposed X-ray observation system, which can be linked with an electronic medical record system, allows easy extraction of standardized clinical information to construct a database. However, the proposed entry system is limited to chest X-rays and it is impossible to interpret the semantic information. Therefore, further research into domains using other interpretation methods is required.

Seo, Suk-Tae; Park, Hee-Joon; Kim, Min Soo; Son, Chang-Sik; Park, Hyoung-Seob; Jeon, Hyo Chan; Jung, Chi Young

2010-01-01

382

JAE: A Jupiter Atmospheric Entry Probe Heating Code  

NASA Technical Reports Server (NTRS)

The strong gravitational attraction of Jupiter on probes approaching the planet results in very high atmospheric entry velocities. The values relative to the rotating atmosphere can vary from about 47 to 60 km/sec, depending on the latitude of the entry. Therefore, the peak heating rates and heat shield mass fractions exceed those for any other atmospheric entries. For example, the Galileo probe's heat shield mass fraction was 50%, of which 45% was devoted to the forebody. Although the Galileo probe's mission was very successful, many more scientific questions about the Jovian atmosphere remain to be answered and additional probe missions are being planned. Recent developments in microelectronics have raised the possibility of building smaller and less expensive probes than Galileo. Therefore, it was desirable to develop a code that could quickly compute the forebody entry heating environments when performing parametric probe sizing studies. The Jupiter Atmospheric Entry (JAE) code was developed to meet this requirement. The body geometry consists of a blunt-nosed conical shape of arbitrary nose and base radius and cone angles up to about 65 deg at zero angle of attack.

Wercinski, Paul F.; Tauber, Michael E.; Yang, Lily

1997-01-01

383

Physician challenges in communicating bad news  

Microsoft Academic Search

Communicating bad news is never easy and for physicians these interactions may be a significant source of stress. To examine\\u000a the characteristics that make delivering of bad news stressful, two studies were conducted. In the first study, 37 physicians\\u000a generated 192 responses describing the characteristics that influence how difficult it is to break bad news. After sorting\\u000a the responses in

J. T. Ptacek; Elizabeth G. McIntosh

2009-01-01

384

32 CFR 516.53 - News media and other inquiries.  

Code of Federal Regulations, 2013 CFR

... 2013-07-01 2013-07-01 false News media and other inquiries. 516.53 Section 516...United States Has An Interest § 516.53 News media and other inquiries. News media inquiries regarding litigation or...

2013-07-01

385

26 CFR 49.4253-2 - Exemption for news services.  

Code of Federal Regulations, 2013 CFR

...2013-04-01 2013-04-01 false Exemption for news services. 49.4253-2 Section 49...Communications § 49.4253-2 Exemption for news services. (a) In general. The exemption for news services provided by section...

2013-04-01

386

Gatekeeping, Indexing, and Live-Event News: Is Technology Altering the Construction of News?  

Microsoft Academic Search

We are interested in event-driven news, defined as coverage of activities that are, at least at their initial occurrence, spontaneous and unmanaged by officials within institutional settings. Most news most of the time has its origins in official proceed- ings and pronouncements. That may be changing. We want to know if event-driven news stories, facilitated by technological advancements such as

Steven Livingston; W. Lance Bennett

2003-01-01

387

Juvenile entry into prostitution: the role of emotional abuse.  

PubMed

This study seeks to assess the nature and extent of childhood emotional abuse among adult women in a residential prostitution-exiting program. Regression analyses were conducted to assess the unique role of childhood emotional abuse in the prediction of age of entry into prostitution. Childhood emotional abuse, a history of running away during childhood, and participating in survival-based exchanges of sex were significantly associated with the commercial sexual exploitation of girls younger than age 18, while childhood emotional abuse contributed to predicting a younger age of entry. Results are discussed regarding policy, prevention, and future research. PMID:22790558

Roe-Sepowitz, Dominique E

2012-05-01

388

Flight Data Entry, Descent, and Landing (EDL) Repository  

NASA Technical Reports Server (NTRS)

Dr. Daniel Winterhalter, NASA Engineering and Safety Center Chief Engineer at the Jet Propulsion Laboratory, requested the NASA Engineering and Safety Center sponsor a 3-year effort to collect entry, descent, and landing material and to establish a NASA-wide archive to serve the material. The principle focus of this task was to identify entry, descent, and landing repository material that was at risk of being permanently lost due to damage, decay, and undocumented storage. To provide NASA-wide access to this material, a web-based digital archive was created. This document contains the outcome of the effort.

Martinez, Elmain M.; Winterhalter, Daniel

2012-01-01

389

Triferrocenes built on a C3-symmetric ligand platform: entry to redox-active pseudo-triphenylenes via chelation-driven stereoselection of triple Schiff bases.  

PubMed

An expedient tandem deprotonation-trapping protocol was employed to prepare a tris(difluoroboronyl) complex of a triferrocenyl ligand that is geometrically analogous to substituted triphenylenes. A triple Schiff base condensation reaction between 1,3,5-triformylphloroglucinol and aminoferrocene afforded the tris(N-salicylideneamine) adducts 5a + 5b in ca. 1:1 ratio. The keto-enamine tautomeric core of this isomeric mixture could be converted to a common enolate-imine intermediate. Subsequent trapping with BF3.Et2O cleanly afforded the tris(difluoroboronyl) adduct 6 in essentially quantitative yield. The electronic and structural properties of this new class of ferrocene compounds were investigated using various methods including UV-vis, cyclic voltammetry (CV), differential pulse voltammetry (DPV), and X-ray crystallography. In CH2Cl2-CH3CN, 6 displayed a reversible three-electron oxidation process at E1/2ox = +210 mV (vs Fc/Fc+). Despite the sharing of a common [pi,pi]/[n,pi]-conjugated core, no significant electronic communication was observed among the three ferrocenyl units in 6 under either CV or DPV conditions. On the other hand, the broad oxidation wave of 5a + 5b at E1/2ox = +60 mV in CH2Cl2-CH3CN was comprised of at least two major components at +20 and +90 mV, which collapsed to become a single peak in DMF electrolyte, despite that the ratios between the two isomers 5a,b remained essentially invariant to the change in solvent. PMID:17243672

Lim, Young-Kwan; Wallace, Scott; Bollinger, John C; Chen, Xufang; Lee, Dongwhan

2007-03-01

390

New/Small News in the English Curriculum  

ERIC Educational Resources Information Center

It has been argued that schools are trapped in a print-based past, while their students inhabit a nonprint-based age, and that this has accompanied a shift from traditional mass media to media driven by computer technology. This article draws on the work of Stuart Allan to examine some of the history of this shift in term of news and asks what…

Sawyer, Wayne

2007-01-01

391

Predictors of Student Success in Entry-Level Science Courses  

ERIC Educational Resources Information Center

Although the educational evaluation process is useful and valuable and is supported by the Higher Education Act, a strong research base for program evaluation of college entry-level science courses is still lacking. Studies in science disciplines such as, biology, chemistry, and physics have addressed various affective and demographic factors and…

Singh, Mamta K.

2009-01-01

392

Predictors of student success in entry-level science courses  

Microsoft Academic Search

Although the educational evaluation process is useful and valuable and is supported by the Higher Education Act, a strong research base for program evaluation of college entry-level science courses is still lacking. Studies in science disciplines such as, biology, chemistry, and physics have addressed various affective and demographic factors and their relationships to student achievement. However, the literature contains little

Mamta K. Singh

2009-01-01

393

A probabilistic mobile text entry system for agglutinative languages  

Microsoft Academic Search

In this work, a probabilistic mobile text entry system based on statistical language models is proposed. Mobile devices having limited keyboards usually produce ambiguous inputs due to multiple letter assignment to each key. Faster typing can be achieved by predicting the intended word which decreases the number of required keystrokes. Currently available methodologies mostly rely on dictionaries, which are impractical

Ahmet Tantug

2010-01-01

394

Mars Smart Lander Simulations for Entry, Descent, and Landing.  

National Technical Information Service (NTIS)

Two primary simulations have been developed and are being updated for the Mars Smart Lander Entry, Descent, and Landing (EDL). The high fidelity engineering end-to-end EDL simulation that is based on NASA Langley's Program to Optimize Simulated Trajectori...

S. A. Striepe, D. W. Way, J. Balaram

2002-01-01

395

2. Looking glass aircraft with open main entry door and ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

2. Looking glass aircraft with open main entry door and cockpit hatch. View to south. - Offutt Air Force Base, Looking Glass Airborne Command Post, Looking Glass Aircraft, On Operational Apron covering northeast half of Project Looking Glass Historic District, Bellevue, Sarpy County, NE

396

INTERIOR VIEW OF THE ARENA MAIN ENTRY. NOTE THE VERTICAL ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

INTERIOR VIEW OF THE ARENA MAIN ENTRY. NOTE THE VERTICAL LOUVERS AT THE TOP OF THE BLEACHER SEATING. VIEW FACING WEST - U.S. Naval Base, Pearl Harbor, Bloch Recreation Center & Arena, Between Center Drive & North Road near Nimitz Gate, Pearl City, Honolulu County, HI

397

Deciding Who's News: A Content Analysis of Disaster, National and International News in Two Elite Newspapers from 1885 through 1989.  

National Technical Information Service (NTIS)

This study analyses the relationship between international news references and disaster news references in the New York Times and the Los Angeles Times. The American media receive frequent criticism for inadequate coverage of news from other nations. Both...

C. L. Sito

1990-01-01

398

Graduate-Entry Medical Student Variables that Predict Academic and Clinical Achievement  

Microsoft Academic Search

A hypothetical model was formulated to explore factors that influenced academic and clinical achievement for graduate-entry medical students completing their third year of university studies. Nine latent variables were considered including the students' background, previous successes with their undergraduate and postgraduate studies and their assessed ability to study graduate-entry medicine based on their scholastic aptitude and their interview selection scores.

Ian Blackman; I Gusti; Ngurah Darmawan

2004-01-01

399

Entry descent, and landing scenario for the Mars Exploration Rover mission  

Microsoft Academic Search

In January 2004, the Mars Exploration Rover (MER) mission will land two landers on the surface of Mars. Both landers will deliver a rover to the surface using an entry, descent, and landing (EDL) scenario based on Mars Pathfinder heritage. However, the entry conditions and environments are different from that of Mars Pathfinder. Unique challenges are present due to the

Prasun N. Desai; Wayne J. Lee

2004-01-01

400

The Development of Double Entry Bookkeeping and its Relevance in Today's Business Environment  

Microsoft Academic Search

Many civilizations developed accounting theories based on the specific needs in their societies. One of those developments was the double entry bookkeeping system. Some of the factors that contributed to the creation of double entry bookkeeping were techniques in math, the invention of coins and money as a medium of exchange, the introduction of paper, the development of a banking

Regina Libina

2005-01-01

401

SEER in the News  

Cancer.gov

SEER is an authoritative source of information on cancer incidence and survival in the United States. SEER currently collects and publishes cancer incidence and survival data from population-based cancer registries covering approximately 28 percent of the U.S. population.

402

Is news media related to civic engagement? The effects of interest in and discussions about the news media on current and future civic engagement of adolescents.  

PubMed

This study explored whether discussions about the media, when positively linked to interest in the news media, were related to adolescents' current and future civic engagement. A sample of 2638 adolescents (age M = 17, SD = 1.2), who participated in a school-based study on positive socialization, completed self-report measures on interest in the news media and discussions about the media with parents and friends. Current civic engagement was measured by involvement in volunteering and civic commitments. Future civic engagement was measured by intentions to participate in civic activities in the future. The results showed that more interpersonal discussions about the media and higher interest in the news media both predicted higher civic engagement. Positive links between discussions about the media and current civic engagement were partly mediated by interest in the news media. In addition, interest in the news media together with current civic engagement fully mediated a positive link between discussions about the media and future civic engagement. Moderating effects of gender were observed, with discussions about the media a better predictor of boys' interest in the news media, and current civic engagement a better predictor of girls' future civic engagement. PMID:22264380

Erentait?, Rasa; Žukauskien?, Rita; Beyers, Wim; Pilkauskait?-Valickien?, Rasa

2012-06-01

403

Automated data entry system: performance issues  

NASA Astrophysics Data System (ADS)

This paper discusses the performance of a system for extracting bibliographic fields from scanned pages in biomedical journals to populate MEDLINE, the flagship database of the national Library of Medicine (NLM), and heavily used worldwide. This system consists of automated processes to extract the article title, author names, affiliations and abstract, and manual workstations for the entry of other required fields such as pagination, grant support information, databank accession numbers and others needed for a completed bibliographic record in MEDLINE. Labor and time data are given for (1) a wholly manual keyboarding process to create the records, (2) an OCR-based system that requires all fields except the abstract to be manually input, and (3) a more automated system that relies on document image analysis and understanding techniques for the extraction of several fields. It is shown that this last, most automated, approach requires less than 25% of the labor effort in the first, manual, process.

Thoma, George R.; Ford, Glenn

2001-12-01

404

Centralised treatment, entry to trials and survival.  

PubMed Central

A review was carried out of the published literature on survival rates for cancer in relation to patterns of organisation of medical care, specifically treatment at specialist centres or at hospitals treating larger numbers of patients and treatment by protocol, usually within the context of a clinical trial. Centralised referral or entry to trials was frequently associated with a higher survival rate, particularly for the less common cancers, and was never found to be associated with a lower survival rate. Few studies were identified for any one cancer site and some antedated current methods of treatment. At a time when the health service in the United Kingdom is undergoing far-reaching organisational change, further research is needed to establish the most beneficial patterns of care for people with cancer. Population-based cancer registries are an invaluable source of data for such studies.

Stiller, C. A.

1994-01-01

405

19 CFR 10.112 - Filing free entry documents or reduced duty documents after entry.  

Code of Federal Regulations, 2013 CFR

...2013-04-01 2013-04-01 false Filing free entry documents or reduced duty documents...THE TREASURY ARTICLES CONDITIONALLY FREE, SUBJECT TO A REDUCED RATE, ETC. General Provisions Late Filing of Free Entry and Reduced Duty Documents...

2013-04-01

406

Power Prose: The Syntax of Presidential News  

Microsoft Academic Search

This study compared news coverage of Presidents Carter and Reagan at times of crisis. Using content analysis to examine stories sampled from the New York Times and Washington Post, this study found news stories became more wordy in crisis times. For Carter this was when Iran captured hostages in November 1979, and for Reagan it was the revelation of arms

Katherine C. McAdams

1990-01-01

407

Broadcast Journalism; An Introduction to News Writing.  

ERIC Educational Resources Information Center

The important features of writing news for radio and television are covered in this book. Ways to write colorful, accurate, and timely stories are explained with the emphasis on the differences between broadcast and newspaper stories. Other subjects treated are sources of news (including explanations of how the Associated Press copy works and how…

Hall, Mark W.

408

Generating summaries of multiple news articles  

Microsoft Academic Search

We present a natural language system which summarizes a series of news articles on the same event. It uses sum- marization operators, identified through empirical analysis of a corpus of news summaries, to group together templates from the output of the systems developed for ARPA's Mes- sage Understanding Conferences. Depending on the avail- able resources (e.g., space), summaries of different

Kathleen McKeown; Dragomir R. Radev

1995-01-01

409

Workforce Competitiveness Collection. "LINCS" Resource Collection News  

ERIC Educational Resources Information Center

This edition of "'LINCS' Resource Collection News" features the Workforce Competitiveness Collection, covering the topics of workforce education, English language acquisition, and technology. Each month Collections News features one of the three "LINCS" (Literacy Information and Communication System) Resource Collections--Basic Skills, Program…

Literacy Information and Communication System, 2011

2011-01-01

410

Program Management Collection. "LINCS" Resource Collection News  

ERIC Educational Resources Information Center

This edition of "'LINCS' Resource Collection News" features the Program Management Collection, which covers the topics of Assessment, Learning Disabilities, and Program Improvement. Each month Collections News features one of the three "LINCS" (Literacy Information and Communication System) Resource Collections--Basic Skills, Program Management,…

Literacy Information and Communication System, 2011

2011-01-01

411

Television and the News: A Critical Appraisal.  

ERIC Educational Resources Information Center

This book contains a documented critical analysis of the state of broadcast journalism in the United States. It also examines the conditions that prevent news broadcasting as a practice from being a profession, and suggests steps needed to achieve professionalism in providing the kind of news service the nation needs but is not getting. Some of…

Skornia, Harry J.

412

Mass News: Practices, Controversies, and Alternatives.  

ERIC Educational Resources Information Center

This selection of readings, primarily intended for a college journalism course, discusses the strengths and weaknesses of the major sources of the public news--the wire services, newspapers, and television. The first part of the book deals with the context of mass news and serves as an introduction to some of the crucial ideas shaping thinking…

Leroy, David J., Ed.; Sterling, Christopher H., Ed.

413

Measuring the Interestingness of News Articles.  

National Technical Information Service (NTIS)

An explosive growth of online news has taken place. Users are inundated with thousands of news articles, only some of which are interesting. A system to filter out uninteresting articles would aid users that need to read and analyze many articles daily, s...

A. F. Cardenas D. J. Buttler R. K. Pon

2007-01-01

414

Library Media Specialists: Doing the News!  

ERIC Educational Resources Information Center

Discusses Newspapers in Education (NIE) Week and how it can relate to school library media specialists. Highlights include the convergence of news media, including news on the Web; ERIC (Educational Resources Information Center) resources, including lesson plans; relevant books; Web sites; and Web journalism. (LRW)

Barron, Daniel D.

2003-01-01

415

Concerns about crime and local television news  

Microsoft Academic Search

“If it bleeds it leads.”; The crime story is the most popular topic for the typical local television news broadcast, comprising at least 28% of the stories covered. The present hypothesis predicts that greater amounts of local television news viewing will be associated with greater support for policies that punish criminals as opposed to support for policies that address social

Todd C. Trautman

2004-01-01

416

Satellite News Feeds: Protecting a Transient Interest.  

ERIC Educational Resources Information Center

Satellite news gathering (SNG) has been widely adopted in broadcast journalism in recent years, and appears likely to grow in importance as local television news operations increase their reliance on it. However, because the technology for SNG is so new, information transmitted through SNG systems is not adequately protected under current laws.…

Atwater, Tony; And Others

417

Financial Activity Mining from Online Multilingual News  

Microsoft Academic Search

We develop a financial knowledge management system, known as FAM, which is able to digest online news and conduct financial activity mining. Financial online news articles are automatically fetched from the Web. By analyzing the text content, metadata capturing major attributes such as company names and people names are automatically extracted. The metadata together with content terms are processed to

Pik-shan Cheung; Ruizhang Huang; Wai Lam

2004-01-01

418

News from IPNS  

SciTech Connect

Niobium-base alloys are candidate materials for the dive structure in fusion reactors. For this application, the materials should exhibit resistance to aqueous corrosion, hydrogen embrittlement, and radiation damage and should have high thermal conductivity and low thermal expansion. Results of corrosion and embrittlement screening tests of several binary and ternary alloys in high-temperature water indicated that Nb-1Zr, Nb-5Mo-1Zr and Nb-5V-1Zr (wt.%) showed sufficient promise for further investigation. These alloys, together with pure Nb and Zircaloy-4, have been exposed to high-purity water containing a low concentration of dissolved oxygen (<12 ppb) at 170, 230, and 300C for up to {approx}3200 h. Weight-change data, microstructural observations, and qualitative mechanical-property evaluations reveal that Nb-5V-1Zr is the most promising alloy at higher temperatures. Below {approx}200C the alloys exhibit similar corrosion behavior.

Brown, B.S.

1995-12-31

419

Daily Egyptian Diversity News Index  

NSDL National Science Digital Library

Developed as part of the online collections at Southern Illinois University-Carbondale's Morris Library, the Daily Egyptian Diversity News Index provides historical insight into the campus climate at this unique school. In 2006, Dr. Seymour Bryson, the associate chancellor for diversity, teamed up with several other colleagues to identify articles in the Daily Egyptian (the University's student newspaper) related to the university's historic minority campus populations. The project entailed surveying microfilm and creating searchable transcripts for online access. Currently, the online archive contains over 1,400 items from the Daily Egyptian, and content includes pieces on African American members of the homecoming court, student activists, musical groups, and student government.

420

U.S. Water News  

NSDL National Science Digital Library

This online magazine features news articles from around the world about legal, economic, and cultural factors related to water. The archives include articles from 1995-present and are searchable by topic: supply, quality, policy, conservation, litigation/rights, global resource, or by keyword. The site also provides a list of water meetings and conferences and a free sample of the Water Investment Newsletter, which includes information about water stocks and investments. Educators can access information and examples for teaching about legal, economic, and cultural factors related to water.

2002-07-31

421

Turning Science Results into News  

NASA Astrophysics Data System (ADS)

Do you want to get into the New York Times? Aside from writing an angry letter or robbing a bank, getting into the news (with your science result) requires a well-crafted press release. Reaching out to reporters is very different from reaching out to fellow scientists. Scientific significance is not the same as newsworthiness, but many science results can be molded into interesting stories that reporters can relate to their audience. This presentation will present examples of science stories that made it big and some that flopped. We will also examine what makes a story attractive to newspaper and magazine editors.

Wanjek, Christopher

2006-09-01

422

NOVA: Science in the News  

NSDL National Science Digital Library

The Australian Academy of Science produces this useful information resource on current scientific news in Australia. NOVA covers a wide range of topics, including soil salinity (how technology is being used to monitor the extent of dryland salinity "threatening large areas of Australia's agricultural zone"), wind power, osteoporosis, the Southern Ocean and global climate, and Fuelling the 21st century, among many others. Each article provides general and in-depth information, including a hyperlinked summary, glossary, and suggested readings. A list of useful sites rounds out each topic.

Payne, Laura X.

423

Mars Entry Atmospheric Data System Modelling and Algorithm Development  

NASA Technical Reports Server (NTRS)

The Mars Entry Atmospheric Data System (MEADS) is being developed as part of the Mars Science Laboratory (MSL), Entry, Descent, and Landing Instrumentation (MEDLI) project. The MEADS project involves installing an array of seven pressure transducers linked to ports on the MSL forebody to record the surface pressure distribution during atmospheric entry. These measured surface pressures are used to generate estimates of atmospheric quantities based on modeled surface pressure distributions. In particular, the quantities to be estimated from the MEADS pressure measurements include the total pressure, dynamic pressure, Mach number, angle of attack, and angle of sideslip. Secondary objectives are to estimate atmospheric winds by coupling the pressure measurements with the on-board Inertial Measurement Unit (IMU) data. This paper provides details of the algorithm development, MEADS system performance based on calibration, and uncertainty analysis for the aerodynamic and atmospheric quantities of interest. The work presented here is part of the MEDLI performance pre-flight validation and will culminate with processing flight data after Mars entry in 2012.

Karlgaard, Christopher D.; Beck, Roger E.; OKeefe, Stephen A.; Siemers, Paul; White, Brady; Engelund, Walter C.; Munk, Michelle M.

2009-01-01

424

News in Brief  

NASA Astrophysics Data System (ADS)

Vice President Shen Meets with CIP Guests Vice President Shen visits Finland, the Netherlands and Germany NSFC-JST Workshop on Energy Saving Held in Beijing NSFC President Meets with Guests from K.T. Li Foundation Northeastern Asian Symposium on Network Held in Xi'an Pilot Program of China-US Collaborative Research on Biomedical Research Announced Program of China-US Collaborative Research in Advanced Sensors and Bio-inspired Technology (ASBIT) Announced The Eighth A-HORCs Meeting Held in Xi'an Prof. Chen Yiyu, NSFC President meets with NRF President, South Africa NSFC-CIHR MoU Renewed in Ottawa NSFC and NIH Signs Collaborative MoU in Biomedical Research 10th Anniversary of the Sino-German Center Celebrated International Symposium on Internet-based Science Grants Management System Held in NSFC MOU between NSFC and UNEP signed in Beijing Plenary Meeting of the International Committee for the Evaluation of NSFC's Funding and Management Performance Held in Beijing

2010-10-01

425

Extractive Summarization of Broadcast News: Comparing Strategies for European Portuguese  

Microsoft Academic Search

This paper presents the comparison between three methods for extractive summarization of Portuguese broadcast news: feature-based,\\u000a Maximal Marginal Relevance, and Latent Semantic Analysis. The main goal is to understand the level of agreement among the\\u000a automatic summaries and how they compare to summaries produced by non-professional human summarizers. Results were evaluated\\u000a using the ROUGE-L metric. Maximal Marginal Relevance performed close

Ricardo Ribeiro; David Martins De Matos

2007-01-01

426

Conveyor belt entry fire hazards and control  

Microsoft Academic Search

A fire in a coal mine conveyor belt entry represent a major safety and health risk to miners. Fighting belt entry fires can be a commanding effort. If there is a failure of one aspect in the fire fighting needs such as a dissimilar hose-valve connection, then it can result in the inability to extinguish a fire. Fire incident data

H. Verakis; M. Hockenberry

2008-01-01

427

Orion Entry Display Feeder and Interactions with the Entry Monitor System  

NASA Technical Reports Server (NTRS)

The Orion spacecraft is designed to return astronauts to a landing within 10 km of the intended landing target from low Earth orbit, lunar direct-entry, and lunar skip-entry trajectories. Al pile the landing is nominally controlled autonomously, the crew can fly precision entries manually in the event of an anomaly. The onboard entry displays will be used by the crew to monitor and manually fly the entry, descent, and landing, while the Entry Monitor System (EMS) will be used to monitor the health and status of the onboard guidance and the trajectory. The entry displays are driven by the entry display feeder, part of the Entry Monitor System (EMS). The entry re-targeting module, also part of the EMS, provides all the data required to generate the capability footprint of the vehicle at any point in the trajectory, which is shown on the Primary Flight Display (PFD). It also provides caution and warning data and recommends the safest possible re-designated landing site when the nominal landing site is no longer within the capability of the vehicle. The PFD and the EMS allow the crew to manually fly an entry trajectory profile from entry interface until parachute deploy having the flexibility to manually steer the vehicle to a selected landing site that best satisfies the priorities of the crew. The entry display feeder provides data from the ENIS and other components of the GNC flight software to the displays at the proper rate and in the proper units. It also performs calculations that are specific to the entry displays and which are not made in any other component of the flight software. In some instances, it performs calculations identical to those performed by the onboard primary guidance algorithm to protect against a guidance system failure. These functions and the interactions between the entry display feeder and the other components of the EMS are described.

Baird, Darren; Bernatovich, Mike; Gillespie, Ellen; Kadwa, Binaifer; Matthews, Dave; Penny, Wes; Zak, Tim; Grant, Mike; Bihari, Brian

2010-01-01

428

Space Shuttle Status News Conference  

NASA Technical Reports Server (NTRS)

Richard Gilbech, External Tank "Tiger Team" Lead, begins this space shuttle news conference with detailing the two major objectives of the team. The objectives include: 1) Finding the root cause of the foam loss on STS-114; and 2) Near and long term improvements for the external tank. Wayne Hale, Space Shuttle Program Manager, presents a chart to explain the external tank foam loss during STS-114. He gives a possible launch date for STS-121 after there has been a repair to the foam on the External Tank. He further discusses the changes that need to be made to the surrounding areas of the plant in New Orleans, due to Hurricane Katrina. Bill Gerstemaier, NASA Associate Administrator for Space Operations, elaborates on the testing of the external tank foam loss. The discussion ends with questions from the news media about a fix for the foam, replacement of the tiles, foam loss avoidance, the root cause of foam loss and a possible date for a new external tank to be shipped to NASA Kennedy Space Center.

2005-01-01

429

News and Announcements  

NASA Astrophysics Data System (ADS)

New Source of Information from Advertisers The Journal has a new feature effective with the June 1999 issue. If you would like additional information about our advertisers or their products, the quickest and easiest way to get it is via JCE Online: go to http://jchemed.chem.wisc.edu click on Ad Index This will take you to the list of advertisers, each conveniently linked to their home page. When you do contact our advertisers, be sure to tell them that you saw their ad in the Journal of Chemical Education. This is important to them, and to us. JCE Software Receives Award The Journal recently received notice that JCE Software portion of JCE Online has been selected as a Links2Go Key Resource for the topic of chemistry software. According to Links2Go (www.links2go.com), JCE Software's home page is one of the top fifty most accessed online resources in the area of chemistry software (currently ranked 45). Thanks to all of you who have visited JCE Online and the JCE Software area to make this possible. If you haven't visited the site yet, you can go there directly (http://jchemed.chem.wisc.edu/JCESoft/index.html ) as well as via our JCE Online home page. You will be greeted with a short video of nitrogen triiodide exploding and be able to get a wealth of information about our latest releases, software, CD-ROMs/Video, student resources, materials for authors and software developers. You can see color graphics from our CD-ROMs, video, and software,... Actually, if you are familiar with our Catalog, this is much better. 1999 Welch Chemistry Prize Richard N. Zare, the Marguerite Blake Wilbur Professor of Natural Science at Stanford University, has been named the 1999 recipient of the Welch Award in Chemistry for his lifetime achievements in physical and analytical chemistry. Zare's interests focus on the development and application of lasers and other novel instruments to explore chemical frontiers, ranging from molecules to chemical processes, from the inside of cells to the inside of meteorites. Zare and colleague Andrew Alexander are contributors to the Journal's Viewpoints series, sponsored by the Camille and Henry Dreyfus Foundation: "Anatomy of Elementary Chemical Reactions", JCE, 1998, 75, 1105. The Welch Award in Chemistry has been given by the Welch Foundation since 1972 to honor lifetime achievements in the field. Zare will be honored and presented with a $300,000 prize and gold medallion during the Foundation's annual award banquet held in Houston in October. NEACT Conference: Chemistry of Materials and Material Science The 61st Summer Conference of NEACT, the New England Association of Chemistry Teachers, will be held from Monday, August 9, through Thursday, August 12, at Massachusetts Institute of Technology in Cambridge, MA. The four-day conference will feature an exploration of the chemistry of materials and material science and effective methods of presenting these in the classroom and laboratory. The keynote address is "Teaching Solid State Chemistry at MIT" by Ron Latanision of MIT's Department of Material Science. Other presentations include "Driving Force", James Livingston; "The Colorful Nanoworld", Moungi Bawendi; "Molecular Wire-Based Amplification in Chemical Sensors", Timothy Swager; "Putting Solids in the Foundation", Arthur Ellis, George Lisensky, and Karen Nordell; "Miracle Materials", Valerie Wilcox; "Teaching About Polymers to Chemistry Students", Richard Stein; and "Using Software in Teaching About Polymers to Chemistry Students", William Vining. There will be a selection of workshops on the conference theme as well. The conference is open to all. The program chairperson is Peter J. Nassiff, Science Department Chairperson at Burlington High School. For further information contact Nassiff at 80 Gregory Road, Framingham, MA 01701; email: pnassiff@massed.net. Call for Symposia, Papers, & Workshops: 16th BCCE The Web site for the 16th Biennial Conference on Chemical Education, July 30-August 3, 2000, at the Un

1999-07-01

430

NEWS: TRUMP resources  

NASA Astrophysics Data System (ADS)

Support for astronomy in A-level physics aslogo Help is at hand for teachers and students choosing astronomy as part of A-level physics. The Teaching Resources Unit for Modern Physics (TRUMP) has produced a resource package covering all the astronomical options in the Edexcel, OCR and AQA (NEAB) syllabuses. The forerunner to TRUMP was the project that produced the highly successful Particle Physics Pack, sponsored by the Institute of Physics, which was instrumental in introducing particle physics into A-level syllabuses. The TRUMP Astrophysics Resource Package fills a gap between the colourful stimulus of popular materials on the one hand, and professional texts on the other. But this is not just another A-level textbook; the six-part resource pack has a similar structure and purpose to the Particle Physics Pack. It provides over 400 pages of comprehensive information for teachers, building on their existing subject knowledge and bringing them up to date as well as giving suggestions for teaching and notes on syllabus coverage. The package includes nearly 40 photocopiable sheets for students. The emphasis is on the physics that underpins the astronomy. There are details of student activities requiring no specialist equipment beyond that normally found in A-level labs, exercises using authentic data, and plenty of questions (all with worked solutions). The development of the TRUMP Astrophysics Package was funded by the Nuffield Foundation, the Particle Physics and Astronomy Research Council, the Institute of Physics and York University. The package is available by mail order, price £48 (inc. UK p&p) from the TRUMP Project, Science Education Group, University of York, Heslington, York YO10 5DD. Some parts may be purchased separately; for details contact the project's director, Elizabeth Swinbank (tel: 01904 434537, fax: 01904 434078, e-mail: es14@york.ac.uk) or consult the web page www.york.ac.uk/org/seg/trump. The BaBar experiment balogo In the spring of 1999, scientists began to collect data from the BaBar experiment - an international collaboration involving the UK, several other European countries and the USA. The experiment is designed to throw light on the puzzling question of why there is so little antimatter in the universe and so much matter. The TRUMP BaBar resource package brings the mystery of antimatter into schools. There are notes and colourful posters on the physics of BaBar, and photocopiable sheets supporting student activities. These include explorations of symmetry, templates for making a scale model of the BaBar detector, and a web-based research project. The pack is designed mainly for A-level physics (particularly those courses that include some particle physics) but parts also relate to GCSE science, Scottish Higher physics and Standard physics. The BaBar resource package is available free from the Particle Physics and Astronomy Research Council, which fully funded its development and production. Contact the Publicity Team, PPARC, Polaris House, North Star Avenue, Swindon, Wiltshire SN2 1SZ (tel: 01973 442123, e-mail: pr_pus@pparc.ac.uk).

Swinbank, Elizabeth

2000-05-01

431

Stock price jumps: news and volume play a minor role  

Microsoft Academic Search

In order to understand the origin of stock price jumps, we cross-correlate high-frequency time series of stock returns with different news feeds. We find that neither idiosyncratic news nor market wide news can explain the frequency and amplitude of price jumps. We find that the volatility patterns around jumps and around news are quite different: jumps are followed by increased

Armand Joulin; Augustin Lefevre; Daniel Grunberg; Jean-Philippe Bouchaud

2008-01-01

432

Index to NASA news releases and speeches, 1992  

NASA Technical Reports Server (NTRS)

This issue of the Index to NASA News Releases and Speeches contains a listing of news releases distributed by the Office of Public Affairs, NASA Headquarters, and a selected listing of speeches presented by members of the Headquarters staff during 1992. The index is arranged in six sections: subject index, personal names index, news release number index, accession number index, speeches, and news releases.

1993-01-01

433

Cancer News Coverage and Information Seeking  

PubMed Central

The shift toward viewing patients as active consumers of health information raises questions about whether individuals respond to health news by seeking additional information. This study examines the relationship between cancer news coverage and information seeking using a national survey of adults aged 18 years and older. A Lexis-Nexis database search term was used to identify Associated Press (AP) news articles about cancer released between October 21, 2002, and April 13, 2003. We merged these data to the Health Information National Trends Survey (HINTS), a telephone survey of 6,369 adults, by date of interview. Logistic regression models assessed the relationship between cancer news coverage and information seeking. Overall, we observed a marginally significant positive relationship between cancer news coverage and information seeking (p < 0.07). Interaction terms revealed that the relationship was apparent only among respondents who paid close attention to health news (p < 0.01) and among those with a family history of cancer (p < 0.05). Results suggest that a notable segment of the population actively responds to periods of elevated cancer news coverage by seeking additional information, but they raise concerns about the potential for widened gaps in cancer knowledge and behavior between large segments of the population in the future.

NIEDERDEPPE, JEFF; FROSCH, DOMINICK L.; HORNIK, ROBERT C.

2010-01-01

434

Nondestructive identification for red ink entries of seals by Raman and Fourier transform infrared spectrometry  

NASA Astrophysics Data System (ADS)

Determination of the red ink entries of seals on documents can provide valuable evidences for solving related crimes, distinguishing the truth of artworks, and so establishment of nondestructive approaches would play a key role in forensic analysis and related aspects. Raman and FT-IR spectroscopy have been applied for analyzing 105 kinds of red ink entries on documents. The dye components of the ink entries were identified by FT-Raman and confocal Raman microspectroscopy, and then the ink entries were classified into four groups based on these dye components. The ink entries were further discriminated by their FT-IR spectra according to adsorption peaks of the main components, the relative intensities of the characteristic bands and the profiles of the spectra. The results showed that 70 ink entries out of 105 have been individually identified and the remaining 35 ink entries can be divided into 13 subclasses. Combination of Raman and FT-IR spectroscopic methods can provide a powerful nondestructive discriminating tool for identification of the red ink entries of seals on papers. These approaches would have potential application in archeology, art and forensic science.

Wang, Xiang-Feng; Yu, Jing; Zhang, Ai-Lan; Zhou, Dai-Wei; Xie, Meng-Xia

2012-11-01

435

Automated semantic structure reconstruction and representation generation for broadcast news  

NASA Astrophysics Data System (ADS)

This paper addresses the problem of recovering the semantic structure of broadcast news. A hierarchy of retrievable units is automatically constructed by integrating information from different media. The hierarchy provides a compact, yet meaningful, abstraction of the broadcast news data, similar to a conventional table of content that can serve as an effective index table, facilitating the capability of browsing through large amounts of data in a nonlinear fashion. The recovery of the semantic structure of the data further enables the automated solutions in constructing visual representations that are relevant to the semantics as well as in establishing useful relationships among data units such as topic categorization and content based multimedia hyperlinking. Preliminary experiments of integrating different media for hierarchical segmentation of semantics have yielded encouraging results. Some of the results are presented and discussed in this paper.

Huang, Qian; Liu, Zhu; Rosenberg, Aaron

1998-12-01

436

On Heatshield Shapes for Mars Entry Capsules  

NASA Technical Reports Server (NTRS)

The 70deg sphere-cone - the standard geometry for all US Mars entry missions - is thoroughly examined via flow field simulations at a select few peak heating points along candidate flight trajectories. Emphasis is placed on turbulent heating based on the Baldwin- Lomax turbulence model. It is shown that increased leeward turbulent heating for a 70 sphere-cone flying at angle of attack is primarily due to the discontinuity in curvature between the spherical nose cap and the conical frustum - the attachment of the sonic line at this sphere-cone junction leads to a supersonic edge Mach number over the leeward acreage. In an attempt to mitigate this problem of elevated turbulent heating, alternate geometries, without any curvature discontinuities in the acreage, are developed. Two approaches, one based on nonlinear optimization with constraints, and one based on the use of non-uniform rational B-splines, are considered. All configurations examined remain axisymmetric. The aerothermal performance of alternate geometries is shown to be superior to that of the 70 sphere-cone.

Prabhu, DInesh K.; Saunders, David A.

2012-01-01

437

High quality topic extraction from business news explains abnormal financial market volatility.  

PubMed

Understanding the mutual relationships between information flows and social activity in society today is one of the cornerstones of the social sciences. In financial economics, the key issue in this regard is understanding and quantifying how news of all possible types (geopolitical, environmental, social, financial, economic, etc.) affects trading and the pricing of firms in organized stock markets. In this article, we seek to address this issue by performing an analysis of more than 24 million news records provided by Thompson Reuters and of their relationship with trading activity for 206 major stocks in the S&P US stock index. We show that the whole landscape of news that affects stock price movements can be automatically summarized via simple regularized regressions between trading activity and news information pieces decomposed, with the help of simple topic modeling techniques, into their "thematic" features. Using these methods, we are able to estimate and quantify the impacts of news on trading. We introduce network-based visualization techniques to represent the whole landscape of news information associated with a basket of stocks. The examination of the words that are representative of the topic distributions confirms that our method is able to extract the significant pieces of information influencing the stock market. Our results show that one of the most puzzling stylized facts in financial economies, namely that at certain times trading volumes appear to be "abnormally large," can be partially explained by the flow of news. In this sense, our results prove that there is no "excess trading," when restricting to times when news is genuinely novel and provides relevant financial information. PMID:23762258

Hisano, Ryohei; Sornette, Didier; Mizuno, Takayuki; Ohnishi, Takaaki; Watanabe, Tsutomu

2013-01-01

438

High Quality Topic Extraction from Business News Explains Abnormal Financial Market Volatility  

PubMed Central

Understanding the mutual relationships between information flows and social activity in society today is one of the cornerstones of the social sciences. In financial economics, the key issue in this regard is understanding and quantifying how news of all possible types (geopolitical, environmental, social, financial, economic, etc.) affects trading and the pricing of firms in organized stock markets. In this article, we seek to address this issue by performing an analysis of more than 24 million news records provided by Thompson Reuters and of their relationship with trading activity for 206 major stocks in the S&P US stock index. We show that the whole landscape of news that affects stock price movements can be automatically summarized via simple regularized regressions between trading activity and news information pieces decomposed, with the help of simple topic modeling techniques, into their “thematic” features. Using these methods, we are able to estimate and quantify the impacts of news on trading. We introduce network-based visualization techniques to represent the whole landscape of news information associated with a basket of stocks. The examination of the words that are representative of the topic distributions confirms that our method is able to extract the significant pieces of information influencing the stock market. Our results show that one of the most puzzling stylized facts in financial economies, namely that at certain times trading volumes appear to be “abnormally large,” can be partially explained by the flow of news. In this sense, our results prove that there is no “excess trading,” when restricting to times when news is genuinely novel and provides relevant financial information.

Hisano, Ryohei; Sornette, Didier; Mizuno, Takayuki; Ohnishi, Takaaki; Watanabe, Tsutomu

2013-01-01

439

News  

PubMed Central

Chickenpox cases in the US drop by 80% Novel immunotherapy for breast, ovarian and prostate cancer successfully completes Phase 1 Important progress for Inovio’s universal influenza vaccine Vaccine against ricin exposure successful in phase 1B BCG could help reverse Type 1 Diabetes HPV vaccine: effective, when given early First vaccine for visceral leishmaniasis starts human testing CDC prepares vaccine for new swine flu strain

Riedmann, Eva M.

2012-01-01

440

News  

NASA Astrophysics Data System (ADS)

Webb-Share update; Astro-cymru update; Copernicus reburied; Tycho to be exhumed; Caledonian anniversary 1: chair of astronomy at Glasgow; Caledonian anniversary II: James Ferguson: Fifty years of weather satellites; H.G. Wells remembered.

Davenhall, Clive

2010-07-01

441

News  

NASA Astrophysics Data System (ADS)

Particle Physics: LHC switch-on inspires pupils Science Fair: Science takes centre stage in Spain Conference: Czech and Slovak physicists get together Curriculum: UK needs independent curriculum body Conference: Edmonton enjoys a physics-show treat

2008-11-01

442

News  

PubMed Central

Two new combination pediatric vaccines advancing to use in infants Oncolytic viruses successfully delivered intravenously Cuba eliminates hepatitis B among minors under 15 Alzheimer's vaccine trial a success Study: Shingles vaccine safe for patients on immune-suppressing drugs Therapeutic cancer vaccine against metastatic renal cell carcinoma enters Phase 3 Pfizer’s Men B vaccine shows promise in Phase 2 Biovest initiates formal regulatory approval process for BiovaxID in Europe

Riedmann, Eva M.

2012-01-01

443

News  

NASA Astrophysics Data System (ADS)

Physics on Stage: Physics on Stage focuses on life Women in Physics: DNA posters highlight the role of women Physics on Stage: Not just fair but better than ever Physics on Stage: Food inspires teaching of physics Physics on Stage: Powerful performances dispel the myth of boring physics Physics Songs: Physics inspires some of our readers to sing Physics on Stage: Awards recognize achievements of science teachers in Europe Curriculum: Japan tests Advancing Physics UK Assessment System: Assessment overhaul is overdue Future Physicists: Ambassadors are bringing physics alive Physics at work: Physics at work still going strong Teaching Teachers: US coalition helps new teachers Forthcoming Events

2004-01-01

444

News  

NASA Astrophysics Data System (ADS)

IRELAND New courses for high-tech Ireland; SCIENCE YEAR Science Year launched with a jump; THE NETHERLANDS School science teachers face uncertainty; KOREA Embedding physics in a cultural context; TEACHING RESOURCES Teacher, get your hook; ICT RESOURCES Stock-take of ICT progress; INTERNET Teachers to test-drive new physics gateway; NEW ZEALAND Physics is valued in New Zealand; JAPAN Advancing Physics in Japan; HIGHER EDUCATION Networking works in Cologne; INSTITUTE MATTERS IoP demands a better deal for physics teachers; AUSTRALIA Physics numbers decline: educators blame the low impact curriculum; SCIENCE FOR THE PUBLIC More than sixty seconds in Glasgow; INTERNET A gift selection of papers from IoP; TEACHING STYLES I know what you did last summer;

2001-11-01

445

News  

NASA Astrophysics Data System (ADS)

Physics on Stage: Física en Acción increases the public’s awareness of science Competition: Winner takes a trip to CERN Ireland: TruePhysics makes life simpler Czech Republic: Technology fun day highlights demand for new science centre Literary Festival: Physicists visit Hay while the Sun shines Science on Stage: Science takes stage in Germany National Convention: NSTA connects science to world Forthcoming Events

2004-07-01

446

News  

NASA Astrophysics Data System (ADS)

UK Awards: Teacher of Physics Awards Institute Matters: Institute of Physics Education Conference UK Awards: Top SHAP students win prizes Competition: International creative essay competition UK Awards: Kelvin Medal Particle Physics Resources: New poster from PPARC Australia: Physics Students's Day at Adventure World UK Awards: Bragg Medal winners in a FLAP ASE Annual Meeting: Particle Physics at ASE 2002 UK Grants: PPARC Awards AAPT Winter Meeting: Physics First - but do you need maths? UK In-Service Training: The Particle Physics Institutes for A-level teachers Physics on Stage 2: Not too entertaining this time, please! Scotland: A reasoned approach wins reasonable funding Institute Matters: New education manager Germany: Physics gets real: curriculum change for better teaching Research Frontiers: Let there be light - if you hang on a minute

2002-03-01

447

News  

NASA Astrophysics Data System (ADS)

11-14 Science: Scoring for science Advancing Physics: Japanese teachers use Advancing Physics Physics on Stage Highlights: Concept Cartoon competition Institute Membership: CPhys status and you Careers Guidance: Physics on Course 2003 Higher Education: SHAP prize for teachers A-Level Physics: Developing new kinds of physics degrees Careers Guidance: New careers website Higher Education: Fewer physics students in The Netherlands? Republic of Ireland: Task Force on the Physical Sciences Careers Guidance: Changing curriculum standards in China Forthcoming Events

2002-07-01

448

News  

NASA Astrophysics Data System (ADS)

Energy: Increasing global energy needs require drastic policy changes Germany: Science teachers talk tactics in Bavaria Physics Day: NPL hosts A-level physics day Engineering: ICE members consider the past and the future of engineering IOP Awards: Superb teachers receive awards for their contribution to physics New Zealand: Unlikely location serves up stimulating conference Astronomy: Teaching ideas abound at EAAE event in Spain Mexico: Sharing knowledge about better physics teaching

2006-09-01

449

News.  

ERIC Educational Resources Information Center

Reported are (1) rationale for standardizing the purchase of microcomputers by the Houston Independent School District; (2) general criteria used to evaluate bids; and (3) reasons why Bell and Howell was selected as the best bidder. This is the largest single microcomputer purchase by a school district to date. (JN)

Technological Horizons in Education, 1980

1980-01-01

450

News  

NASA Astrophysics Data System (ADS)

Herschel papers catalogued and accessible; Maskelyne papers accepted for the nation; centenary of the Hamburg Observatory; oldest astrologer's board found; Groupe Flammarion sold; ancient sundial found; keeping time (modern folk song about John Harrison).

Davenhall, Clive

2012-06-01

451

News  

NASA Astrophysics Data System (ADS)

Physics on Stage: Physics on the political stage Women in Physics: Allez les girls! Curriculum: Students want ethics debate in school science Physics on Stage: Buzzing around the tulips Events: GIREP 2002 Competition: Schumacher in the shower! Higher Education: Universities consider conceptual physics courses Resources: Evaluation of Advancing Physics Research Frontiers: Physics Teachers @ CERN 2002 UK Curriculum: Preparing useful citizens China: Changing the approach NSTA Annual Convention: Innovations and simplicity Europe: European Community Science and Society Action Plan Citizenship: ASE-Wellcome Trust citizenship education initiative

2002-05-01

452

News  

NASA Astrophysics Data System (ADS)

MASTERCLASSES Researchers help motivate school students; HIGHER EDUCATION Undergraduate physics inquiry launched Sir Peter; PUBLIC UNDERSTANDING OF SCIENCE Chemists take the lead to get science groups pulling together; RESEARCH FRONTIERS Spintronic Chips; LOWER SECONDARY CURRICULUM Why do we teach physics? TEACHING COMMUNITY e-Teachers; AWARDS Nobel Prize; HIGHER EDUCATION Project Phoenics; PARTICLE PHYSICS LEP Closure; TEACHER TRAINING Training salary fails to attract recruits; EVENTS Physics moves into the spotlight

2001-01-01

453

News  

NASA Astrophysics Data System (ADS)

ASE: Dramatic demonstrations steal the show at ASE ’06 conference Science on Stage: Greek scientists serve up a treat Meeting: Astronomy event will discuss education New Zealand: New Zealand works hard to improve the profile of physics Technology: BETT show moves with the times Awards: SHAP hands out 2005 awards Anniversary: Brunel steps into the limelight Science Made Simple: Science show communicates physics concepts without words Literature: Science Newswise: a guide for teachers

2006-03-01

454

News  

NASA Astrophysics Data System (ADS)

Einstein year: Einstein is brought back to life for a year of educational events Workshop: Students reach out for the Moon Event: Masterclasses go with a bang Workshop: Students search for asteroids on Einstein's birthday Scotland: Curriculum for Excellence takes holistic approach Conference: Reporting from a mattress in Nachod Conference: 'Change' is key objective at ICPE conference 2005 Lecture: Institute of Physics Schools Lecture series Conference: Experience showcase science in Warwick National network: Science Learning Centre opens Meeting: 30th Stirling Physics Meeting breaks records Competition: Win a digital camera! Forthcoming Events

2005-01-01

455

News  

NASA Astrophysics Data System (ADS)

Spain: ESERA conference debates the teacher researcher relationship Media: Teachers’ TV Associates now launched Slovenia: GIREP seminar: ‘formal’ and ‘informal’ educators work together in Ljubljana Award: Faculty honours rollercoaster designer OECD: Global survey to assess school leavers’ abilities Competition: Opportunity to win revision aid for your class Scotland: Annual meeting UK: Humour and controversy at energy day Training: Teachers get to grips with telescopes Scotland: Educators flock to Stirling 2005

2005-11-01

456

News  

NASA Astrophysics Data System (ADS)

Solar Eclipse: Total eclipse aficionados seek out the best observation spots Schools Lecture: Demonstration lectures: what can go wrong will go wrong… Germany: Bridging the education gap Bangladesh: Workshop on science education assists battle against poverty Australia: Teachers gather to share experiences Meeting: Give the examination boards a grilling US Workshops: Workshops demonstrate some excellent teaching apparatus World Year of Physics: WYP events and activities are a great success in New Zealand

2006-05-01

457

19 CFR 141.5 - Time limit for entry.  

Code of Federal Regulations, 2013 CFR

...HOMELAND SECURITY; DEPARTMENT OF THE TREASURY (CONTINUED) ENTRY OF MERCHANDISE Liability for Duties and Requirement To Enter Merchandise § 141.5 Time limit for entry. Merchandise for which entry is required will be entered within 15...

2013-04-01

458

19 CFR 141.52 - Separate entries for different portions.  

Code of Federal Regulations, 2013 CFR

...DEPARTMENT OF THE TREASURY (CONTINUED) ENTRY OF MERCHANDISE Quantity of Merchandise To Be Included in an Entry § 141.52 Separate...which separate entries are tendered are covered by separate bills of lading. (f) The consignment consists of...

2013-04-01

459

ABC News: Video and Audio Newsclips  

NSDL National Science Digital Library

ABC News has added a section of video and audio newsclips to its news service at the GO Network, InfoSeek Corporation's Internet portal. Users can see and listen to national headline news, such as a clip from Warren Beatty's speech at an awards dinner Wednesday night (sounding rather presidential). They can also search for additional video files using Videosearch, by Virage. Beatty as a search term turned up a clip about the Clinton family's summer vacation on Martha's Vineyard that included a mention of Beatty's presidential aspirations and opinions on the Democratic Party, but no additional pictures of Beatty.

460

Online NewsHour: Preserving Utah's Wilderness  

NSDL National Science Digital Library

With this PBS Online NewsHour feature, visitors can explore the contentious issue of federal wilderness designations in Utah. A battle over these designations "ended when the state convinced the federal government to drop certain land restrictions, an agreement environmentalists say will endanger pristine areas." The entire segment of this NewsHour episode may be viewed online. Visitors with slower Internet connections may wish to use the audio-only feature. The site also includes a transcript and a number of links to related NewsHour stories, including a recent one that examines President Bush's environmental record during former EPA head Christine Todd Whitman's period in office.

461

Discovering opinion leaders for medical topics using news articles  

PubMed Central

Background Rapid identification of subject experts for medical topics helps in improving the implementation of discoveries by speeding the time to market drugs and aiding in clinical trial recruitment, etc. Identifying such people who influence opinion through social network analysis is gaining prominence. In this work, we explore how to combine named entity recognition from unstructured news articles with social network analysis to discover opinion leaders for a given medical topic. Methods We employed a Conditional Random Field algorithm to extract three categories of entities from health-related new articles: Person, Organization and Location. We used the latter two to disambiguate polysemy and synonymy for the person names, used simple rules to identify the subject experts, and then applied social network analysis techniques to discover the opinion leaders among them based on their media presence. A network was created by linking each pair of subject experts who are mentioned together in an article. The social network analysis metrics (including centrality metrics such as Betweenness, Closeness, Degree and Eigenvector) are used for ranking the subject experts based on their power in information flow. Results We extracted 734,204 person mentions from 147,528 news articles related to obesity from January 1, 2007 through July 22, 2010. Of these, 147,879 mentions have been marked as subject experts. The F-score of extracting person names is 88.5%. More than 80% of the subject experts who rank among top 20 in at least one of the metrics could be considered as opinion leaders in obesity. Conclusion The analysis of the network of subject experts with media presence revealed that an opinion leader might have fewer mentions in the news articles, but a high network centrality measure and vice-versa. Betweenness, Closeness and Degree centrality measures were shown to supplement frequency counts in the task of finding subject experts. Further, opinion leaders missed in scientific publication network analysis could be retrieved from news articles.

2012-01-01

462

Entry Guidance for the Reusable Launch Vehicle  

NASA Technical Reports Server (NTRS)

The X-33 Advanced Technology Demonstrator is a half-scale prototype developed to test the key technologies needed for a full-scale single-stage reusable launch vehicle (RLV). The X-33 is a suborbital vehicle that will be launched vertically, and land horizontally. The goals of this research were to develop an alternate entry guidance scheme for the X-33 in parallel to the actual X-33 entry guidance algorithms, provide comparative and complementary study, and identify potential new ways to improve entry guidance performance. Toward these goals, the nominal entry trajectory is defined by a piecewise linear drag-acceleration-versus-energy profile, which is in turn obtained by the solution of a semi-analytical parameter optimization problem. The closed-loop guidance is accomplished by tracking the nominal drag profile with primarily bank-angle modulation on-board. The bank-angle is commanded by a single full-envelope nonlinear trajectory control law. Near the end of the entry flight, the guidance logic is switched to heading control in order to meet strict conditions at the terminal area energy management interface. Two methods, one on ground-track control and the other on heading control, were proposed and examined for this phase of entry guidance where lateral control is emphasized. Trajectory dispersion studies were performed to evaluate the effectiveness of the entry guidance algorithms against a number of uncertainties including those in propulsion system, atmospheric properties, winds, aerodynamics, and propellant loading. Finally, a new trajectory-regulation method is introduced at the end as a promising precision entry guidance method. The guidance principle is very different and preliminary application in X-33 entry guidance simulation showed high precision that is difficult to achieve by existing methods.

Lu, Ping

1999-01-01

463

Optimal Recruiting Strategy to Minimize U.S. Navy Delayed Entry Program (DEP) Attrition.  

National Technical Information Service (NTIS)

This thesis develops an optimization based model to assist the Navy Recruiting Command in placing Nuclear Power Field recruits in the Delayed Entry Program (DEP). After signing enlistment contracts, individuals are enrolled in the DEP prior to entering re...

P. G. Simpson

1997-01-01

464

IBM Research News: Millipede Project  

NSDL National Science Digital Library

On June 11, 2002, researchers at IBM "demonstrated a data storage density of a trillion bits per square inch -- 20 times higher than the densest magnetic storage available today." The project, called Millipede, uses a technique analogous to punch cards to store data, as opposed to traditional methods of magnetic storage. Although it will not likely be used in commercial applications in the near future, the implications of this achievement in nanotechnology are great. This news release gives a brief summary of the findings of the team. A much more detailed technical paper is given via a link on the page, as are several images and animations that show different portions of the Millipede chip.

2002-01-01

465

ATLAS-1 Video News Release  

NASA Technical Reports Server (NTRS)

Allen Kenitzer, from Marshall Space Flight Center (MSFC), narrates this NASA Kennedy Space Center video presenting a MSFC-Television news release describing the overall scientific objectives of the Atmospheric Laboratory for Applications in Science-1 (ATLAS-1) Spacelab mission. Byron Lichtenberg (NASA Science Astronaut) and Anthony O'Neil (ATLAS-1 Mission Manager) explain that the 13 sophisticated and complementary instruments carried in shuttle Atlantis' payload bay are designed to identify the chemical species in our atmosphere, to measure the Sun's energy falling on and entering the atmosphere, to study the behavior of charged particles in the electric and magnetic fields surrounding the earth, and to gather ultraviolet light from stars and galaxies. ATLAS-1 is the first Spacelab flight of the National Aeronautics and Space Administration's (NASA's) Mission to Planet Earth.

1992-01-01

466

ATLAS-2 Video News Release  

NASA Technical Reports Server (NTRS)

This NASA Kennedy Space Center (KSC) video presents a Marshall Space Flight Center-Television (MSFC-TV) news release describing the objectives of the Atmospheric Laboratory for Applications in Science-2 (ATLAS-2), which is being flown on STS-56. Dr. Tim Miller (Mission Scientist), Dr. Marsha Torr (Mission Scientist), and Teresa Vanhooser (Mission Manager) explain that the ATLAS-2 mission is being launched to study earth atmospheric interactions with the sun in general and how manmade chemicals and pollution are contributing to ozone depletion in our atmosphere in particular. Seven instruments comprise the core payload. ATLAS-2 is an integral part of the Spacelab contribution to NASA's Mission to Planet Earth and characterizes the chemical and physical components of Earth's middle atmosphere and the solar energy injected in the atmosphere, studies that began on ATLAS-1.

1993-01-01

467

Montana Rivers Information System : Edit/Entry Program User's Manual.  

SciTech Connect

The Montana Rivers Information System (MRIS) was initiated to assess the state`s fish, wildlife, and recreation value; and natural cultural, and geologic features. The MRIS is now a set of data bases containing part of the information in the Natural Heritage Program natural features and threatened and endangered species data bases and comprises of the Montana Interagency Stream Fisheries Database; the MDFWP Recreation Database; and the MDFWP Wildlife Geographic Information System. The purpose of this User`s Manual is to describe to the user how to maintain the MRIS database of their choice by updating, changing, deleting, and adding records using the edit/entry programs; and to provide to the user all information and instructions necessary to complete data entry into the MRIS databases.

United States. Bonneville Power Administration; Montana Department of Fish, Wildlife and Parks

1992-07-01

468

Shuttle entry trajectory reconstruction using inflight accelerometer and gyro measurements  

NASA Technical Reports Server (NTRS)

An error analysis has been made of a Shuttle postflight entry trajectory reconstruction process to obtain trajectory state estimation errors and to assess the impact of these errors on Shuttle aerodynamic force coefficient extraction. In this analysis, the entry trajectory is assumed to be reconstructed via numerical integration of onboard accelerometer and gyro measurements and constrained to satisfy ground-based radio tracking. The trajectory state estimation errors are calculated using a Kalman-Schmidt sequential filter assuming various measurement error models and combinations of ground-based tracking. The resultant trajectory estimation errors are analyzed in a simplified perturbation process to establish the accuracy to which postflight aerodynamic force coefficients can be determined. Results are presented which show that the principal error sources affecting the trajectory reconstruction and thus the force coefficient extraction, assuming perfect atmospheric density knowledge, are the accelerometer and gyro resolution, acceleration-sensitive gyro drifts, and the alignment uncertainties associated with integration on the Shuttle.

Compton, H. R.; Blanchard, R. C.; Findlay, J. T.

1979-01-01

469

Alternative Fuel News, Vol. 3 No. 2  

SciTech Connect

This special issue of Alternative Fuel News highlights the Fifth National Clean Cities Conference held in Louisville, Kentucky. The momentum for the program is stronger than ever and the coalitions are working to propel the alternative fuel industry forward.

NONE

1999-09-23

470

Channel to Newport News, Virginia (Maintenance Dredging).  

National Technical Information Service (NTIS)

The project proposes dredging required to maintain the 800-foot wide channel to Newport News. The channel extends westwardly approximately 4.8 miles from Norfolk Harbor Channel to Chesapeake and Ohio Railway Company coal piers. Maintenance dredging will r...

1973-01-01

471

A Choice Prediction Competition for Market Entry Games: An Introduction  

Microsoft Academic Search

A choice prediction competition is organized that focuses on decisions from experience in market entry games (http:\\/\\/sites.google.com\\/site\\/gpredcomp\\/ and http:\\/\\/www.mdpi.com\\/si\\/games\\/predict-behavior\\/). The competition is based on two experiments: An estimation experiment, and a competition experiment. The two experiments use the same methods and subject pool, and examine games randomly selected from the same distribution. The current introductory paper presents the results of

Ido Erev; Eyal Ert; Alvin E. Roth

2010-01-01

472

Navy Delayed Entry Program Attrition Analysis.  

National Technical Information Service (NTIS)

This thesis was conducted to identify various personal and organizational predictors of Navy enlisted personnel Delayed Entry Program (DEP) attrition. Every non-prior service male recruit who entered DEP in Fiscal Years 1980 through 1983 was tracked for 1...

M. M. Murray

1985-01-01

473

Aerocapture Inflatable Decelerator for Planetary Entry  

NASA Technical Reports Server (NTRS)

Forward Attached Inflatable Decelerators, more commonly known as inflatable aeroshells, provide an effective, cost efficient means of decelerating spacecrafts by using atmospheric drag for aerocapture or planetary entry instead of conventional liquid propulsion deceleration systems. Entry into planetary atmospheres results in significant heating and aerodynamic pressures which stress aeroshell systems to their useful limits. Incorporation of lightweight inflatable decelerator surfaces with increased surface-area footprints provides the opportunity to reduce heat flux and induced temperatures, while increasing the payload mass fraction. Furthermore, inflatable aeroshell decelerators provide the needed deceleration at considerably higher altitudes and Mach numbers when compared with conventional rigid aeroshell entry systems. Inflatable aeroshells also provide for stowage in a compact space, with subsequent deployment of a large-area, lightweight heatshield to survive entry heating. Use of a deployable heatshield decelerator enables an increase in the spacecraft payload mass fraction and may eliminate the need for a spacecraft backshell.

Reza, Sajjad; Hund, Richard; Kustas, Frank; Willcockson, William; Songer, Jarvis; Brown, Glen

2007-01-01

474

Generic aerocapture atmospheric entry study, volume 1  

NASA Technical Reports Server (NTRS)

An atmospheric entry study to fine a generic aerocapture vehicle capable of missions to Mars, Saturn, and Uranus is reported. A single external geometry was developed through atmospheric entry simulations. Aerocapture is a system design concept which uses an aerodynamically controlled atmospheric entry to provide the necessary velocity depletion to capture payloads into planetary orbit. Design concepts are presented which provide the control accuracy required while giving thermal protection for the mission payload. The system design concepts consist of the following elements: (1) an extendable biconic aerodynamic configuration with lift to drag ratio between 1.0 and 2.0; (2) roll control system concepts to control aerodynamic lift and disturbance torques; (3) aeroshell design concepts capable of meeting dynamic pressure loads during aerocapture; and (4) entry thermal protection system design concepts to meet thermodynamic loads during aerocapture.

1980-01-01

475

HIV-2 susceptibility to entry inhibitors.  

PubMed

Currently, there is a growing interest in using entry inhibitors to treat HIV-2-infected patients because, among the available drugs, few are fully active against HIV-2. Recent studies indicate that maraviroc and other experimental entry inhibitors, including new CCR5 and CXCR4 antagonists, inhibit primary isolates of HIV-2 as well as HIV-1 and may, therefore, expand the existing therapeutic armamentarium against HIV-2. There are, however, significant differences between the evolution of HIV-1 and HIV-2 envelope glycoproteins during infection that can lead to differences in the response to therapy with entry inhibitors over the course of the infection. Here, we review the available data on the susceptibility of HIV-2 to entry inhibitors in the context of the evolution of the sequence, structure, and function of envelope glycoproteins during infection. PMID:23449229

Borrego, Pedro; Taveira, Nuno

2013-01-01

476

Multiscale perspectives of virus entry via endocytosis  

PubMed Central

Most viruses take advantage of endocytic pathways to gain entry into host cells and initiate infections. Understanding of virus entry via endocytosis is critically important for the design of antiviral strategies. Virus entry via endocytosis is a complex process involving hundreds of cellular proteins. The entire process is dictated by events occurring at multiple time and length scales. In this review, we discuss and evaluate the available means to investigate virus endocytic entry, from both experimental and theoretical/numerical modeling fronts, and highlight the importance of multiscale features. The complexity of the process requires investigations at a systems biology level, which involves the combination of different experimental approaches, the collaboration of experimentalists and theorists across different disciplines, and the development of novel multiscale models.

2013-01-01

477

Plasma Entry into the Earth's Magnetosphere.  

National Technical Information Service (NTIS)

Recent observations of the direct entry of magnetosheath plasma into the sunlit hemisphere of the distant polar magnetosphere via the polar cusps have provided further motivation for in situ examination of plasmas throughout the distant magnetosphere in o...

L. A. Frank

1972-01-01

478

19 CFR 191.143 - Drawback entry.  

Code of Federal Regulations, 2010 CFR

... DRAWBACK Foreign-Built Jet Aircraft Engines Processed in the United States...covering these foreign-built jet aircraft engines shall be filed on Customs...show that the entry covers jet aircraft engines processed under §...

2012-04-01

479

Live Cell Imaging of Viral Entry  

PubMed Central

Viral entry encompasses the initial steps of infection starting from virion host cell attachment to viral genome release. Given the dynamic interactions between the virus and the host, many questions related to viral entry can be directly addressed by live cell imaging. Recent advances in fluorescent labeling of viral and cellular components, fluorescence microscopy with high sensitivity and spatiotemporal resolution, and image analysis enabled studies of a broad spectrum across many viral entry steps, including virus-receptor interactions, internalization, intracellular transport, genomic release, nuclear transport, and cell-to-cell transmission. Collectively, these live cell imaging studies have not only enriched our understandings of the viral entry mechanisms, but also provided novel insights into basic cellular biology processes.

Sun, Eileen; He, Jiang; Zhuang, Xiaowei

2013-01-01

480

Breaking bad news--a flow diagram.  

PubMed

Breaking bad news is neither an easy nor a popular task. Properly handled, however, it can be given in a positive way that the individual can both accept and understand. There may be a range of emotions and concerns following the telling of bad news. These need to be explored and worked through with each individual. This flow diagram describes the steps in this important process. PMID:8081554

Faulkner, A; Maguire, P; Regnard, C

1994-01-01

481

Entry, Descent, and Landing Operations Analysis for the Genesis Re-Entry Capsule  

NASA Technical Reports Server (NTRS)

On September 8, 2004, the Genesis spacecraft returned to Earth after spending 29 months about the sun-Earth libration point collecting solar wind particles. Four hours prior to Earth arrival, the entry capsule containing the samples was released for entry and subsequent landing at the Utah Test and Training Range. This paper provides an overview of the entry, descent, and landing trajectory analysis that was performed during the Mission Operations Phase leading up to final approach to Earth. The operations effort accurately delivered the entry capsule to the desired landing site. The final landing location was 8.3 km from the target, and was well within the allowable landing area. Preliminary reconstruction analyses indicate that the actual entry trajectory was very close to the pre-entry prediction.

Desai, Prasun N.; Lyons, Dan T.

2005-01-01

482

Entry/Exit Port testing, test report  

SciTech Connect

The Waste Receiving and Processing Module I (WRAP-1) facility must have the ability to allow 55-gallon drums to enter and exit glovebox enclosures. An Entry/Exit Port (Appendix 1, Figure 1), designed by United Engineers and Constructors (UE&C), is one method chosen for drum transfer. The Entry/Exit Port is to be used for entry of 55-gallon drums into both process entry gloveboxes, exit of 55-gallon drum waste pucks from the low-level waste (LLW) glovebox, and loadout of waste from the restricted waste management glovebox. The Entry/Exit Port relies on capture velocity air flow and a neoprene seal to provide alpha confinement when the Port is in the open and closed positions, respectively. Since the glovebox is in a slight vacuum, air flow is directed into the glovebox through the space between the overpack drum and glovebox floor. The air flow is to direct any airborne contamination into the glovebox. A neoprene seal is used to seal the Port door to the glovebox floor, thus maintaining confinement in the closed position. Entry/Exit Port testing took place February 17, 1993, through April 14, 1993, in the 305 building of Westinghouse Hanford Company. Testing was performed in accordance with the Entry/Exit Port Testing Test Plan, document number WHC-SD-WO26-TP-005. A prototype Entry/Exit Port built at the Hanford Site was tested using fluorescent paint pigment and smoke candles as simulant contaminants. This test report is an interim test report. Further developmental testing is required to test modifications made to the Port as the original design of the Port did not provide complete confinement during all stages of operation.

Winkelman, R.H.

1993-05-01

483

BALLUTE ENTRY, DESCENT AND LANDING ON TRITON  

Microsoft Academic Search

A ballute for entry and descent has been evaluated for the moon Triton of the planet Neptune. A spherical ballute was evaluated, with a surface density of 10 g\\/m 2 of Kapton that is capable of peak temperatures up to 500°C, radiating on both sides with emissivity of 0.8. An acceptably wide entry corridor was found for deceleration at moderate

Angus McRonald

2006-01-01

484

Trajectory Reconstruction for the Genesis Entry  

NASA Technical Reports Server (NTRS)

An overview of the reconstruction analyses performed for the Genesis capsule entry is described. The results indicate that the actual entry prior to the drogue deployment failure was very close to the pre-entry predictions. The capsule landed 8.3 km south of the desired target at Utah Test and Training Range. Analysis on infrared video footage (obtained from the tracking stations) during the descent estimated the onset of the capsule tumble at Mach 0.9. Frequency analysis on the infrared video data indicates that the aerodynamics generated for the Genesis capsule reasonably predicted the drag and static stability. Observations of the heatshield support the pre-entry simulation estimates of a small hypersonic angles-of-attack, since there is very little, if any, charring of the shoulder region or the afterbody. Through this investigation, an overall assertion can be made that all the data gathered from the Genesis entry is consistent with flight performance close to the nominal pre-entry prediction. Consequently, the design principles and methodologies utilized for the flight dynamics, aerodynamics, and aerothermodynamics analyses have been corroborated.

Desai, Prasun N.; Qualls, Garry D.; Schoenenberger, Mark

2005-01-01

485

Planetary/DOD entry technology flight experiments. Volume 2: Planetary entry flight experiments  

NASA Technical Reports Server (NTRS)

The technical feasibility of launching a high speed, earth entry vehicle from the space shuttle to advance technology for the exploration of the outer planets' atmospheres was established. Disciplines of thermodynamics, orbital mechanics, aerodynamics propulsion, structures, design, electronics and system integration focused on the goal of producing outer planet environments on a probe shaped vehicle during an earth entry. Major aspects of analysis and vehicle design studied include: planetary environments, earth entry environment capability, mission maneuvers, capabilities of shuttle upper stages, a comparison of earth entry planetary environments, experiment design and vehicle design.

Christensen, H. E.; Krieger, R. J.; Mcneilly, W. R.; Vetter, H. C.

1976-01-01

486

Parametric Thermal Soak Model for Earth Entry Vehicles  

NASA Technical Reports Server (NTRS)

The analysis and design of an Earth Entry Vehicle (EEV) is multidisciplinary in nature, requiring the application many disciplines. An integrated tool called Multi Mission System Analysis for Planetary Entry Descent and Landing or M-SAPE is being developed as part of Entry Vehicle Technology project under In-Space Technology program. Integration of a multidisciplinary problem is a challenging task. Automation of the execution process and data transfer among disciplines can be accomplished to provide significant benefits. Thermal soak analysis and temperature predictions of various interior components of entry vehicle, including the impact foam and payload container are part of the solution that M-SAPE will offer to spacecraft designers. The present paper focuses on the thermal soak analysis of an entry vehicle design based on the Mars Sample Return entry vehicle geometry and discusses a technical approach to develop parametric models for thermal soak analysis that will be integrated into M-SAPE. One of the main objectives is to be able to identify the important parameters and to develop correlation coefficients so that, for a given trajectory, can estimate the peak payload temperature based on relevant trajectory parameters and vehicle geometry. The models are being developed for two primary thermal protection (TPS) materials: 1) carbon phenolic that was used for Galileo and Pioneer Venus probes and, 2) Phenolic Impregnated Carbon Ablator (PICA), TPS material for Mars Science Lab mission. Several representative trajectories were selected from a very large trade space to include in the thermal analysis in order to develop an effective parametric thermal soak model. The selected trajectories covered a wide range of heatload and heatflux combinations. Non-linear, fully transient, thermal finite element simulations were performed for the selected trajectories to generate the temperature histories at the interior of the vehicle. Figure 1 shows the finite element model that was used for the simulations. The results indicate that it takes several hours for the thermal energy to soak into the interior of the vehicle and achieve maximum payload temperatures. In addition, a strong correlation between the heatload and peak payload container temperature is observed that will help establishing the parametric thermal soak model.

Agrawal, Parul; Samareh, Jamshid; Doan, Quy D.

2013-01-01

487

NewsCache - A High-Performance Cache Implementation for Usenet News  

Microsoft Academic Search

Usenet News is reaching its limits as current traffic strains the available infrastructure. News data volume increases steadily and competition with other Internet services has intensified. Consequently bandwidth re- quirements are often beyond that provided by typical links and the processing power needed exceeds a sin- gle system's capabilities. A rapidly growing number of users, especially attracted by WWW, overloads

Thomas Gschwind; Manfred Hauswirth

1999-01-01

488

The international news about governability: A comparison of the New York Times and six news wires  

Microsoft Academic Search

This paper examines the international news coverage of governability offered by several news sources. Governability is defined as actual or potential challenges to the domestic political order or stability of a nation, manifested by oppositional violence, leadership crises or institutional change. The New York Times, AP, UPI, Reuters, Northern Reuters, Kyodo and Xinshua are examined for one week. We evaluate

Mark Lichbach

1984-01-01

489

Television News and Sexist Language: A Study of Television News Effects.  

ERIC Educational Resources Information Center

To test the hypothesis that use of sexist language in television newscasts cultivates images of women as immature, frivolous, or incompetent, two television news anchors (one male, one female) were asked to tape versions of a news story involving a 28-year-old female lottery winner. In one version, each anchor referred to this female as "woman,"…

Gebhardt, Randall E.; Harless, James D.

490

Generic Entry, Reformulations, and Promotion of SSRIs  

PubMed Central

Background Previous research has shown that a manufacturer’s promotional strategy for a brand-name drug is typically affected by generic entry. However, little is known about how newer strategies to extend patent life, including product reformulation introduction or obtaining approval to market for additional clinical indications, influence promotion. Objective To examine the relationship between promotional expenditures, generic entry, reformulation entry, and new indication approval. Study Design/Setting We used quarterly data on national product-level promotional spending (including expenditures for physician detailing and direct-to-consumer advertising (DTCA), and the retail value of free samples distributed in physician offices) for selective serotonin reuptake inhibitors (SSRIs) over the period 1997 through 2004. We estimated econometric models of detailing, DTCA, and total quarterly promotional expenditures as a function of the timing of generic entry, entry of new product formulations, and Food and Drug Administration (FDA) approval for new clinical indications for existing medications in the SSRI class. Main Outcome Measure Expenditures by pharmaceutical manufacturers for promotion of antidepressant medications. Results Over the period 1997–2004, there was considerable variation in the composition of promotional expenditures across the SSRIs. Promotional expenditures for the original brand molecule decreased dramatically when a reformulation of the molecule was introduced. Promotional spending (both total and detailing alone) for a specific molecule was generally lower after generic entry than before, although the effect of generic entry on promotional spending appears to be closely linked with the choice of product reformulation strategy pursued by the manufacturer. Detailing expenditures for Paxil were increased after the manufacturer received FDA approval to market the drug for generalized anxiety disorder (GAD), while the likelihood of DTCA outlays for the drug was not changed. In contrast, FDA approval to market Paxil and Zoloft for social anxiety disorder (SAD) did not affect the manufacturers’ detailing expenditures but did result in a greater likelihood of DTCA outlays. Conclusion The introduction of new product formulations appears to be a common strategy for attempting to extend market exclusivity for medications facing impending generic entry. Manufacturers that introduced a reformulation before generic entry shifted most promotion dollars from the original brand to the reformulation long before generic entry, and in some cases manufacturers appeared to target a particular promotion type for a given indication. Given the significant impact pharmaceutical promotion has on demand for prescription drugs, these findings have important implications for prescription drug spending and public health.

Donohue, Julie M.; Koss, Catherine; Berndt, Ernst R.; Frank, Richard G.

2009-01-01