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1

Effect of Incident Beam Width on Light Transmission Enhancement by Bow-Tie-Shaped Nano-Aperture  

NASA Astrophysics Data System (ADS)

In this paper, a bow-tie-shaped nano-aperture is proposed to enhance light transmission and obtain a tiny beam spot. The transmission and focusing characteristics of the proposed aperture are analyzed numerically using a dispersive three-dimensional finite-difference time-domain (3D-FDTD) method. The spot size and transmittance enhancement of the light transmitted through the optimized aperture are approximately ?/20 and 400 times, respectively. In contrast to the bowtie antenna, the proposed nano-aperture has a bow-tie-shaped opening at its center and its surroundings are filled with metal. Thus, the transmittance enhancement can be further increased by extending the interaction area between an incident beam and the metal portion of the nano-aperture, which is accomplished by increasing the beam width of an incident light.

Park, Dae-Seo; Kim, Hyun Jun; O, Beom Hoan; Park, Se Geun; Lee, El-Hang; Lee, Seung Gol

2007-12-01

2

Tied Up  

USGS Multimedia Gallery

The Canadian Coast Guard Ship Louis S. St-Laurent ties up to the Coast Guard Cutter Healy in the Arctic Ocean Sept. 5, 2009. The two ships are taking part in a multi-year, multi-agency Arctic survey that will help define the Arctic continental shelf....

2010-02-19

3

TIES Presentation Philadelphia University  

E-print Network

TIES Presentation Philadelphia University 29/11/2010 by Professor Mohammad Awwad Vice President for Academic Affairs and Coordinator of TIES #12;1. Kick-off meeting activities Date: 1 ­ 2 March, 2010 TIES vision and objectives Presentations by the TIES partners TIES webpage TIES administrative

4

Networks of strong ties  

NASA Astrophysics Data System (ADS)

Social networks transmitting covert or sensitive information cannot use all ties for this purpose. Rather, they can only use a subset of ties that are strong enough to be “trusted”. This paper addresses whether it is still possible, under this restriction, for information to be transmitted widely and rapidly in social networks. We use transitivity as evidence of strong ties, requiring one or more shared contacts in order to count an edge as strong. We examine the effect of removing all non-transitive ties in two real social network data sets, imposing varying thresholds in the number of shared contacts. We observe that transitive ties occupy a large portion of the network and that removing all other ties, while causing some individuals to become disconnected, preserves the majority of the giant connected component. Furthermore, the average shortest path, important for the rapid diffusion of information, increases only slightly relative to the original network. We also evaluate the cost of forming transitive ties by modeling a random graph composed entirely of closed triads and comparing its connectivity and average shortest path with the equivalent Erdös-Renyi random graph. Both the empirical study and random model point to a robustness of strong ties with respect to the connectivity and small world property of social networks.

Shi, Xiaolin; Adamic, Lada A.; Strauss, Martin J.

2007-05-01

5

Tree-Ties.  

ERIC Educational Resources Information Center

Created to help students understand how plants were used for food, for medicine, and for arts and crafts among the Ojibwe (Chippewa) Indians, the game Tree-Ties combines earth and social sciences within a specific culture. The game requires mutual respect, understanding, and agreement to succeed. Sounding like the word "treaties", the title is a…

Gresczyk, Rick

6

Evolution of the USANZ tie.  

PubMed

•?The Urological Society of Australia and New Zealand (USANZ) tie represents the dual nationality of the society, the ancient history of urology, and the continuing development of urology in Australia and New Zealand. •?The earliest badge of the Urological Society of Australasia (USA) was a cartoon depiction of the cystoscopic view of a prostate from the urethra. The inception of the USANZ tie began with the borrowing of the crest of the newly granted USA coat of arms (lynx holding an exploratorium) as the logo for the USA Annual Scientific Meeting Tie in 1988. This tie was adopted de facto as the USA Society Tie; it became the template for subsequent scientific meeting ties, from which the formal USANZ tie design was adapted in 2006, to coincide with and mark the new society name, from the USA to the USANZ. This paper traces the evolution of the USANZ tie. PMID:21492368

Webb, David R; Lawrentschuk, Nathan

2011-04-01

7

Drum tie-down apparatus  

DOEpatents

A drum tie-down apparatus for securing drum-like containers in an upright position to a floor or platform of a transportation vehicle having spaced apart cargo tie-down points. The apparatus comprises a pair of cylindrical, hollow tube segments horizontally oriented and engageable with a drum lid adjacent opposite rim edges, flexible strap segments for connecting upper and lower central portions of the tube segments together across the drum lid and a pair of elongated flexible tie-down segments, one extending horizontally through each of the tube segments, the ends thereof being attached to said spaced apart tie-down points such that end portions of the pair of tie-down segments extend downwardly and radially outwardly from the tube segments to the tie-down points.

Morse, Harvey E. (Albuquerque, NM)

1984-01-01

8

PREDICTING TIE STRENGTH WITH SOCIAL MEDIA  

E-print Network

PREDICTING TIE STRENGTH WITH SOCIAL MEDIA Eric Gilbert & Karrie Karahalios University of Illinois #12;casey leslielucas kevin #12;The strength of a tie is a (probably linear) combination of the amount characterize the tie. -- Granovetter TIE STRENGTH concept & impact STRONG TIES are the people you really trust

Karahalios, Karrie G.

9

Telescopes in Education (TIE)  

NSDL National Science Digital Library

The collaborative Telescopes in Education (TIE) program, sponsored by NASA, lets students around the world operate a remotely controlled telescope and charge-coupled device (CCD) camera. Using a science-grade 24-inch reflecting telescope located at the Mount Wilson Observatory in of Southern California, a modem, and special software, students in the U.S., Australia, Canada, England, and Japan have learned about astronomy, astrophysics, and mathematics. With the purchase of The Sky: Remote Astronomy Software which controls the telescope, educators and students can reserve observation time on the telescope for any evening of the week lasting from one hour to an entire night. The website provides more information on how to obtain the software, system requirements, an online users guide, and current weather conditions on Mount Wilson. Unfortunately, the webcam didn't work at the time the site was reviewed, yet the online photo Gallery provides some lovely images taken using the CCD camera. The project also provides a large listing of other educational links, including one to another educational telescope in Australia, called Nanango.

10

7 CFR 7.12 - Tie votes.  

Code of Federal Regulations, 2012 CFR

...Agriculture 1 2012-01-01 2012-01-01 false Tie votes. 7.12 Section 7.12 Agriculture ...STATE, COUNTY AND COMMUNITY COMMITTEES § 7.12 Tie votes. (a) Tie votes in community committee elections held by...

2012-01-01

11

7 CFR 7.12 - Tie votes.  

Code of Federal Regulations, 2011 CFR

...Agriculture 1 2011-01-01 2011-01-01 false Tie votes. 7.12 Section 7.12 Agriculture ...STATE, COUNTY AND COMMUNITY COMMITTEES § 7.12 Tie votes. (a) Tie votes in community committee elections held by...

2011-01-01

12

7 CFR 7.12 - Tie votes.  

Code of Federal Regulations, 2010 CFR

...Agriculture 1 2010-01-01 2010-01-01 false Tie votes. 7.12 Section 7.12 Agriculture ...STATE, COUNTY AND COMMUNITY COMMITTEES § 7.12 Tie votes. (a) Tie votes in community committee elections held by...

2010-01-01

13

Sub-state Tying in Tied Mixture Hidden Markov Models Liang Gu and Kenneth Rose  

E-print Network

Sub-state Tying in Tied Mixture Hidden Markov Models Liang Gu and Kenneth Rose Department is proposed for partial tying of states of tied- mixture hidden Markov models. To facilitate tying at the sub sharing and sub-state tying. Experimental results on the E-set show that the classification error rate

California at Santa Barbara, University of

14

CONFIDENCE INTERVALS FOR POPULATION RANKS IN THE PRESENCE OF TIES AND NEAR TIES  

E-print Network

CONFIDENCE INTERVALS FOR POPULATION RANKS IN THE PRESENCE OF TIES AND NEAR TIES Minge Xie, Kesar of unknown ties or "near ties" among the populations to be ranked. Given random samples from k populations theory and non- standard bootstrap inference for population ranks which allow ties and near ties

Xie, Minge

15

Social ties and mental health  

Microsoft Academic Search

It is generally agreed that social ties play a beneficial role in the maintenance of psychological well-being. In this targeted\\u000a review, we highlight four sets of insights that emerge from the literature on social ties and mental health outcomes (defined\\u000a as stress reactions, psychological well-being, and psychological distress, including depressive symptoms and anxiety). First,\\u000a the pathways by which social networks

Ichiro Kawachi; Lisa F. Berkman

2001-01-01

16

Knot tying at flexible endoscopy.  

PubMed

Four new knotting techniques were developed for use at flexible endoscopy: (1) half hitches tied with knot-pusher, (2) thread-locking device, (3) self-tightening slip-knot, and (4) externally releasable knot. Remoteness from site of action, access through small-diameter orifice, and difficulty in applying lateral traction to tighten knots are problems met in knot tying at endoscopy. All four knotting techniques were studied in experiments on postmortem human stomachs and used for radio-telemetry studies and anti-reflux operations in survival studies in dogs using endoscopic sewing techniques. Half hitches tied at endoscopy with a knot-pusher were also used in human studies to treat esophageal reflux and secure pH radio-telemetry capsules for long-term measurements. Externally releasable knots were used to secure nasogastric tubes to the stomach of five patients for long-term nutrition. Knot tying is feasible at flexible endoscopy by a variety of new techniques. Endoscopically tied knots can be as secure as surgically hand-tied knots and have been used successfully in man. PMID:7859971

Swain, C P; Kadirkamanathan, S S; Gong, F; Lai, K C; Ratani, R S; Brown, G J; Mills, T N

1994-01-01

17

The Navigability of Strong Ties: Small Worlds, Tie Strength and Network Topology  

E-print Network

The Navigability of Strong Ties: Small Worlds, Tie Strength and Network Topology Douglas R. White. Our focus, on tie-strength, multilevel networks and searchability in strong-tie social networks ties' hypothesis about network topologies tested with data from kinship systems, but potentially

Paris-Sud XI, Université de

18

The Navigability of Strong Ties: Small Worlds, Tie Strength, and Network Topology  

E-print Network

The Navigability of Strong Ties: Small Worlds, Tie Strength, and Network Topology Self-organization in Strong-tie Small Worlds DOUGLAS R. WHITE AND MICHAEL HOUSEMAN A small world (SW) is a (large) graph

White, Douglas R.

19

Draft environmental impact statement for construction and operation of the proposed Bangor Hydro-Electric Company`s second 345-kV transmission tie line to New Brunswick  

SciTech Connect

This Draft Environmental Impact Statement (DEIS) was prepared by the US Department of Energy (US DOE). The proposed action is the issuance of Presidential Permit PP-89 by DOE to Bangor Hydro-Electric Company to construct and operate a new international transmission line interconnection to New Brunswick, Canada that would consist of an 83.8 mile (US portion), 345-kilovolt (kV) alternating current transmission line from the US-Canadian border at Baileyville, Maine to an existing substation at Orrington, Maine. The principal environmental impacts of the construction and operation of the transmission line would be incremental in nature and would include the conversion of forested uplands (mostly commercial timberlands) and wetlands to right-of-way (small trees, shrubs, and herbaceous vegetation). The proposed line would also result in localized minor to moderate visual impacts and would contribute a minor incremental increase in the exposure of some individuals to electromagnetic fields. This DEIS documents the purpose and need for the proposed action, describes the proposed action and alternatives considered and provides a comparison of the proposed and alternatives routes, and provides detailed information on analyses of the environmental consequences of the proposed action and alternatives, as well as mitigative measures to minimize impacts.

NONE

1993-10-01

20

Strong Ties and Job Information.  

ERIC Educational Resources Information Center

This study of 299 social and physical scientists at universities reveals that strong personal contacts were more useful than reliance on weak ties (acquaintances) for job information. Using personal connections for employment information is thus an efficient job seeking method. (SK)

Murray, Stephen O.; And Others

1981-01-01

21

49 CFR 213.123 - Tie plates.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Tie plates. 213.123 Section 213.123...STANDARDS Track Structure § 213.123 Tie plates. (a) In Classes 3 through...timber crossties are in use there shall be tie plates under the running rails on at...

2011-10-01

22

7 CFR 7.13 - Tie votes.  

Code of Federal Regulations, 2013 CFR

...Agriculture 1 2013-01-01 2013-01-01 false Tie votes. 7.13 Section 7.13 Agriculture Office...SERVICE AGENCY STATE AND COUNTY COMMITTEES § 7.13 Tie votes. Tie votes in county committee elections will be settled by...

2013-01-01

23

49 CFR 213.123 - Tie plates.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false Tie plates. 213.123 Section 213.123...STANDARDS Track Structure § 213.123 Tie plates. (a) In Classes 3 through...timber crossties are in use there shall be tie plates under the running rails on at...

2012-10-01

24

49 CFR 213.123 - Tie plates.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Tie plates. 213.123 Section 213.123...STANDARDS Track Structure § 213.123 Tie plates. (a) In Classes 3 through...timber crossties are in use there shall be tie plates under the running rails on at...

2013-10-01

25

7 CFR 7.13 - Tie votes.  

...Agriculture 1 2014-01-01 2014-01-01 false Tie votes. 7.13 Section 7.13 Agriculture Office...SERVICE AGENCY STATE AND COUNTY COMMITTEES § 7.13 Tie votes. Tie votes in county committee elections will be settled by...

2014-01-01

26

Ties, Weak and Strong Douglas R. White  

E-print Network

1 Ties, Weak and Strong Douglas R. White Entry for: Encyclopedia of Community. 2003. Karen of as linked by a network of one-to-one ties between people who are related to one another as friends through ties in the network needed to go from one to the other. A common and unusual characteristic

White, Douglas R.

27

TIES Project back to basics Roberto Escarr  

E-print Network

TIES Project back to basics Roberto Escarré OGPI, University of Alicante Funded by the European Union Coordination meeting Alicante, 30-31 January 2012 #12;INDEX A. TIES Wider Objective B. Specific Objectives C. Outputs and Outcomes D. TIES Project Activities E. Assumptions, risks and preconditions #12;A

28

Distinct roles of the receptor tyrosine kinases Tie1 and Tie2 in blood vessel formation  

Microsoft Academic Search

TIE-1 and Tie-2 define a new class of receptor tyrosine kinases that are specifically expressed in developing vascular endothelial cells. To study the functions of Tie-1 and Tie-2 during vascular endothelial cell growth and differentiation in vivo, targeted mutations of the genes in mice were introduced by homologous recombination. Embryos deficient in Tie-1 failed to establish structural integrity of vascular

Thomas N. Sato; Yuzuru Tozawa; Urban Deutsch; Karen Wolburg-Buchholz; Yuko Fujiwara; Maureen Gendron-Maguire; Thomas Gridley; Hartwig Wolburg; Werner Risau; Ying Qin

1995-01-01

29

James (Jim) Watson wearing his RNA Tie Club tieSite: DNA Interactive (www.dnai.org)  

NSDL National Science Digital Library

Jim Watson in Moscow at the International Biochemical Congress, 1961, wearing his RNA Tie Club tie. RNA Tie Club members were united by their ties as well as a desir to understand the role of RNA in protein synthesis.

2008-03-26

30

Ties Between Celestial And Planetary Reference Frames  

NASA Technical Reports Server (NTRS)

Report presents new determination of relative orientation (or frame tie) between reference frame of extra-galactic radio sources and reference frame of planetary ephemeris. Method employed for improved frame-tie estimate relies on ability to measure orientation of Earth with respect to inertial reference frame. Improves orbit determination for interplanetary spacecraft.

Finger, Mark H.; Folkner, William M.

1992-01-01

31

1999 Macmillan Magazines Ltd The simplest of conventional tie knots,  

E-print Network

© 1999 Macmillan Magazines Ltd The simplest of conventional tie knots, the four-in-hand, has its of tie knots, and provide a map between tie knots and persistent random walks on a triangular lattice. We. Of the 85 knots that can be tied with a conventional tie, we recover the four knots that are in widespread

Halligan, Daniel

32

Getting by with less — the “frugal tie  

PubMed Central

Summary The ability to tie surgical knots efficiently and effectively is an essential surgical skill for medical procedures, especially pacemaker implantation. Device generators and their leads need to be safely anchored with sutures during implantation to prevent dislodgement and inadequate packaging in the pacemaker pocket. With most knot tying techniques, a generous amount of suture slack is required. We introduce a new technique that is a variation of the 2-handed surgical square knot and the 1-handed surgeon’s knot that allows one to finish or tie a knot when left with little slack. PMID:25421084

Rizkallah, Jacques; Rothschild, John M.; Exner, Derek V.

2014-01-01

33

Tongue tie: the evidence for frenotomy.  

PubMed

Tongue tie or ankyloglossia is a congenital variation characterised by a short lingual frenulum which may result in restriction of tongue movement and thus impact on function. Tongue tie division (frenotomy) in affected infants with breastfeeding problems yields objective improvements in milk production and breastfeeding characteristics, including objective scoring measures, weight gain and reductions in maternal pain. For the majority of mothers, frenotomy appears to enhance maintenance of breastfeeding. Tongue tie division is a safe procedure with minimal complications. The commonest complication is minor bleeding. Recurrence leading to redivision occurs with rates of 0.003-13% reported; this appears to be more common with posterior than anterior ties. There are limited reports indicating that prophylactic frenotomy may promote subsequent speech development; however, evidence is currently insufficient to condone this practice and further good quality research into this area is warranted. PMID:25258296

Brookes, Alastair; Bowley, Douglas M

2014-11-01

34

Analysis of ICPP fuel storage rack inner tie and corner tie substructures  

SciTech Connect

Finite element models were developed and analyses performed for the tie plate, inner tie block assembly, and corner tie block assembly of a 25 port fuel rack assembly designed for installation in Pool 1 of Building 666 at the Idaho Chemical Processing Plant. These models were specifically developed to investigate the adequacy of certain welds joining components of the fuel storage rack assembly. The work scope for the task was limited to an investigation of the stress levels in the subject subassemblies when subjected to seismic loads. Structural acceptance criteria used for the elastic calculations performed were as found in the overall rack design report as issued by the rack`s designer, Holtec International. Structural acceptance criteria used for the plastic calculations performed as part of this effort were as defined in Subsection NF and Appendix F of the ASME Boiler & Pressure Vessel Code. The results of the analyses will also apply to the 30 port fuel storage rack design that is also scheduled for installation in Pool 1 of ICPP 666. The results obtained from the analyses performed for this task indicate that the welds joining the inner tie block and corner tie block to the surrounding rack structure meet the acceptance criteria. Further, the structural members (plates and blocks) were also found to be within the allowable stress limits established by the acceptance criteria. The separate analysis performed on the inner tie plate confirmed the structural adequacy for both the inner tie plate, corner tie plate, and tie block bolts. The analysis results verified that the inner tie and corner tie block should be capable of transferring the expected seismic load without structural failure.

Nitzel, M.E.; Rahl, R.G.

1996-01-01

35

WIDEBAND BOW-TIE SLOT ANTENNA WITH TUNING STUBS  

E-print Network

WIDEBAND BOW-TIE SLOT ANTENNA WITH TUNING STUBS Abdelnasser A. Eldek, Atef Z. Elsherbeni Senior, USA Abstract Printed bow-tie and bow-tie slot antennas are planar-type variations of the biconical stub to a bow-tie slot antenna design to enhance the antenna bandwidth for X-band operation. Our study

Elsherbeni, Atef Z.

36

Tie Strength in Question & Answer on Social Network Sites  

E-print Network

Tie Strength in Question & Answer on Social Network Sites Katrina Panovich, Robert C. Miller, David with opportunities to better observe this process. In this paper, we relate question answering to tie strength of tie strength in question answers. We used previous research on tie strength in social media

37

Week 1 Lecture Global TIES Intro: Nuts `n Bolts  

E-print Network

Week 1 Lecture Global TIES Intro: Nuts `n Bolts April 1, 2011 #12;Global TIES is an innovative of Higher Education Community Service. #12;Program Personnel · Dr. Mandy Bratton ­ Global TIES Program ­ Global TIES Program Specialist ­ bdonovan@eng.ucsd.edu ­ Office: ESS 1400, Jacobs Hall · Zach Salin

Fainman, Yeshaiahu

38

Third Year to Graduation Global TIES: ENG 100A*  

E-print Network

Third Year to Graduation Global TIES: ENG 100A* Team Engineering Global TIES: ENG 100L* Team, Professional and Leadership Development Summer Research and Fellowships, Internship Second Year Global TIES: ENG 100A* Team Engineering Global TIES: ENG 100L* Team Engineering Lab Gordon Center Course: ENG 100B

Fainman, Yeshaiahu

39

Controlled-tension suture-tying forceps.  

PubMed

Suture-tying forceps have been designed to enable surgeons to tie consecutive sutures to the same tension to create an evenly compressed wound. The tensioning effect of the forceps was tested by tying a suture to the end of a cantilever beam strain-gauge device. Three sutures were used: 10/0 nylon, 8/0 polyglactin (Vicryl) and 8/0 virgin silk. The tests were repeated, coating the tips with citrated blood, sodium hyaluronate and saline. Adjustment of the forceps altered the suture tension in 0.015-N steps. Sterilization of the forceps by ethylene oxide or by an autoclave caused no obvious regression in the forceps performance. When the suture and surface lubricant remain constant, there is a linear relationship between forceps setting and the tension induced in the suture. PMID:1757915

Talbot, E M; Thorpe, A W; Mushtaq, I

1991-10-01

40

TIE: An Ability Test of Emotional Intelligence  

PubMed Central

The Test of Emotional Intelligence (TIE) is a new ability scale based on a theoretical model that defines emotional intelligence as a set of skills responsible for the processing of emotion-relevant information. Participants are provided with descriptions of emotional problems, and asked to indicate which emotion is most probable in a given situation, or to suggest the most appropriate action. Scoring is based on the judgments of experts: professional psychotherapists, trainers, and HR specialists. The validation study showed that the TIE is a reliable and valid test, suitable for both scientific research and individual assessment. Its internal consistency measures were as high as .88. In line with theoretical model of emotional intelligence, the results of the TIE shared about 10% of common variance with a general intelligence test, and were independent of major personality dimensions. PMID:25072656

?mieja, Magdalena; Orzechowski, Jaros?aw; Stolarski, Maciej S.

2014-01-01

41

Strut-and-Tie Resources Web Site  

NSDL National Science Digital Library

This Web site of the University of Illinois at Urbana-Champaign Civil Engineering Department provides a number of educational modules on the strut-and-tie method (STM) of modeling compression and tension forces in concrete. Some historical background on the method is given, followed by an explanation of the model elements and design process. Five examples that demonstrate different scenarios incorporating STM are shown. A graphical design tool software package developed at Illinois, called Computer Aided Strut-and-Tie, can be downloaded for free.

Tjhin, Tjen

42

Predicting tie strength with social media  

Microsoft Academic Search

Social media treats all users the same: trusted friend or total stranger, with little or nothing in between. In reality, rela- tionships fall everywhere along this spectrum, a topic social science has investigated for decades under the theme of tie strength. Our work bridges this gap between theory and practice. In this paper, we present a predictive model that maps

Eric Gilbert; Karrie Karahalios

2009-01-01

43

Content Literacy Tied to the New Standards  

E-print Network

Content Literacy Tied to the New Standards Tom Peters, Ed.D. SC Coalition for Mathematics & Science Leigh Haltiwanger, Ed.M. Clemson University #12; Understand specific aspects of content literacy;When you think about "content literacy" what are some words and/or images that come to mind? #12;the

Stuart, Steven J.

44

2. VIEW OF WEST ELEVATION OF LITTLE FALLS TIE LINE ...  

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

2. VIEW OF WEST ELEVATION OF LITTLE FALLS TIE LINE TOWER NO. 23, OSPREY NEST ON TOWER TOP. LOOKING EAST - Little Falls Tie Line Towers, Near Little Dam Falls on Spokane River, Wellpinit, Stevens County, WA

45

3. VIEW OF NORTHWEST CORNER OF LITTLE FALLS TIE LINE ...  

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

3. VIEW OF NORTHWEST CORNER OF LITTLE FALLS TIE LINE TOWER NO. 23, STANDARD PEAK TOWER. LOOKING SOUTHEAST. - Little Falls Tie Line Towers, Near Little Dam Falls on Spokane River, Wellpinit, Stevens County, WA

46

27 CFR 6.72 - “Tie-in” sales.  

Code of Federal Regulations, 2012 CFR

...TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY LIQUORS âTIED-HOUSEâ Unlawful Inducements Quota Sales § 6.72 “Tie-in” sales. The act by an industry member of requiring that a retailer purchase one product (as...

2012-04-01

47

27 CFR 6.72 - “Tie-in” sales.  

Code of Federal Regulations, 2013 CFR

...TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY ALCOHOL âTIED-HOUSEâ Unlawful Inducements Quota Sales § 6.72 “Tie-in” sales. The act by an industry member of requiring that a retailer purchase one product (as...

2013-04-01

48

4. VIEW OF SOUTHEAST CORNER OF LITTLE FALLS TIE LINE ...  

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

4. VIEW OF SOUTHEAST CORNER OF LITTLE FALLS TIE LINE TOWER NO. 41, OSPREY NEST ON TOWER TOP. LOOKING NORTHWEST. - Little Falls Tie Line Towers, Near Little Dam Falls on Spokane River, Wellpinit, Stevens County, WA

49

27 CFR 6.72 - “Tie-in” sales.  

Code of Federal Regulations, 2010 CFR

...TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY LIQUORS âTIED-HOUSEâ Unlawful Inducements Quota Sales § 6.72 “Tie-in” sales. The act by an industry member of requiring that a retailer purchase one product (as...

2010-04-01

50

27 CFR 6.72 - “Tie-in” sales.  

...TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY ALCOHOL âTIED-HOUSEâ Unlawful Inducements Quota Sales § 6.72 “Tie-in” sales. The act by an industry member of requiring that a retailer purchase one product (as...

2014-04-01

51

27 CFR 6.72 - “Tie-in” sales.  

Code of Federal Regulations, 2011 CFR

...TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY LIQUORS âTIED-HOUSEâ Unlawful Inducements Quota Sales § 6.72 “Tie-in” sales. The act by an industry member of requiring that a retailer purchase one product (as...

2011-04-01

52

5. VIEW OF NORTHWEST ELEVATIONS OF LITTLE FALLS TIE LINE ...  

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

5. VIEW OF NORTHWEST ELEVATIONS OF LITTLE FALLS TIE LINE TOWERS NO. 59 AND NO. 60, EXAMPLE OF TRANSPOSITION TOWERS. LOOKING SOUTHEAST. - Little Falls Tie Line Towers, Near Little Dam Falls on Spokane River, Wellpinit, Stevens County, WA

53

Real Time Pricing Tie Line Control: A Case Study  

E-print Network

A Tie Line Control System maintains the purchase quantity of electrical energy an industrial facility buys from a utility company. Implementing an advanced Tie Line Control system automates the buy versus make decision process for an industrial...

Childress, R.

54

Chord, Tie Bar & Crossbracing Joint Detail in Plan; Crossbracing ...  

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

Chord, Tie Bar & Crossbracing Joint Detail in Plan; Crossbracing Center Joint Detail in Plan; Chord Joining Detail in Plan & Elevation; Chord, Panel Post, Tie Bar, & Diagonal Brace Joint Detail; Crossbracing Center Joint Detail in Section; Chord, Panel Post, Tie Bar & Horizontal Brace Joint Detail - Narrows Bridge, Spanning Sugar Creek at Old County Road 280 East, Marshall, Parke County, IN

55

Enhancing ties between academia and industry to improve health  

E-print Network

COMMENTARY Enhancing ties between academia and industry to improve health S Claiborne Johnston1, 2- closed financial ties between faculty at aca- demic medical centers and industry have surfaced, some, by association, their home institutions, putting a chill on ties between academia and indus- try. However

Mullins, Dyche

56

Week 1 Lecture Global TIES Intro: Nuts `n Bolts  

E-print Network

Week 1 Lecture Global TIES Intro: Nuts `n Bolts April 4, 2014 #12;Introductions · Mandy Bratton, Director ­ OH by appointment, IDEA Center, Jacobs Hall ­ mbratton@eng.ucsd.edu · Ena Hodzic, Global TIES 10: 6/6 Final Presentations #12;Lab Safety Training · Required to use Global TIES project labs in EBU

Fainman, Yeshaiahu

57

Ties Matter: Complexity of Voting Manipulation Revisited Svetlana Obraztsova  

E-print Network

Ties Matter: Complexity of Voting Manipulation Revisited Svetlana Obraztsova School of Physical, or, equivalently, that ties are broken in favor of the manipulator's preferred candidate that the algorithm presented in [1] extends to all rules that break ties according to a fixed ordering over

Elkind, Edith

58

Week 1 Lecture Global TIES Intro: Nuts `n Bolts  

E-print Network

Week 1 Lecture Global TIES Intro: Nuts `n Bolts January 10, 2014 #12;Introductions · Mandy Bratton, Director ­ OH by appointment, IDEA Center, Jacobs Hall ­ mbratton@eng.ucsd.edu · Ena Hodzic, Global TIES Presentations 9 Final Presentations 10 Final Presentations #12;Lab Safety Training · Required to use Global TIES

Fainman, Yeshaiahu

59

49 CFR 195.308 - Testing of tie-ins.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Testing of tie-ins. 195.308 Section 195.308 Transportation...PIPELINE Pressure Testing § 195.308 Testing of tie-ins. Pipe associated with tie-ins must be pressure tested, either with...

2011-10-01

60

Week 1 Lecture Global TIES Intro: Nuts `n Bolts  

E-print Network

Week 1 Lecture Global TIES Intro: Nuts `n Bolts April 6, 2012 #12;Introductions · Mandy Bratton, Director ­ OH by appointment, IDEA Center, Jacobs Hall ­ mbratton@eng.ucsd.edu · Zach Salin, Global TIES responsibility · Overall commitment ~8hrs/week #12;Lecture Schedule Week Date Topic 1 4/6 Global TIES Intro: Nuts

Fainman, Yeshaiahu

61

49 CFR 195.308 - Testing of tie-ins.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false Testing of tie-ins. 195.308 Section 195.308 Transportation...PIPELINE Pressure Testing § 195.308 Testing of tie-ins. Pipe associated with tie-ins must be pressure tested, either with...

2012-10-01

62

49 CFR 195.308 - Testing of tie-ins.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 2010-10-01 false Testing of tie-ins. 195.308 Section 195.308 Transportation...PIPELINE Pressure Testing § 195.308 Testing of tie-ins. Pipe associated with tie-ins must be pressure tested, either with...

2010-10-01

63

Week 2 Lecture Global TIES Intro: Nuts `n Bolts  

E-print Network

Week 2 Lecture Global TIES Intro: Nuts `n Bolts October 11, 2013 #12;Introductions · Mandy Bratton, Director ­ OH by appointment, IDEA Center, Jacobs Hall ­ mbratton@eng.ucsd.edu · Ena Hodzic, Global TIES · Overall commitment ~8hrs/week #12;Lecture Schedule 1 10/4 Global TIES Intro 2 10/11 Nuts and Bolts 3 10

Fainman, Yeshaiahu

64

Week 1 Lecture Global TIES Intro: Nuts `n Bolts  

E-print Network

Week 1 Lecture Global TIES Intro: Nuts `n Bolts September 30, 2011 #12;Course Structure · Friday responsibility · Overall commitment ~8hrs/week #12;Lecture Schedule Week Date Topic 1 9/30 Global TIES Intro ­ Projects are ongoing and continue from quarter to quarter efforts · Resources ­ Global TIES Project Lab

Fainman, Yeshaiahu

65

Structure and tie strengths in mobile communication networks  

E-print Network

Structure and tie strengths in mobile communication networks J.-P. Onnela* , J. Sarama¨ki*, J. Hyvo consequence that social networks are robust to the removal of the strong ties but fall apart after a phase transition if the weak ties are removed. We show that this coupling significantly slows the diffusion process

Iamnitchi, Adriana

66

49 CFR 195.308 - Testing of tie-ins.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Testing of tie-ins. 195.308 Section 195.308 Transportation...PIPELINE Pressure Testing § 195.308 Testing of tie-ins. Pipe associated with tie-ins must be pressure tested, either with...

2013-10-01

67

Networked Learning, a Relational Approach Weak and Strong Ties  

E-print Network

Networked Learning, a Relational Approach ­ Weak and Strong Ties Jones, C. 1 , Ferreday, D.2.ferreday@lancaster.ac.uk, v.hodgson@lancaster.ac.uk ABSTRACT In this paper, we explore the idea of weak ties in networked learning. We go back to the original conception of the strength of weak ties (Granovetter 1973) and relate

Paris-Sud XI, Université de

68

TIE-RESPECTING BOOTSTRAP METHODS FOR ESTIMATING DISTRIBUTIONS OF  

E-print Network

TIE-RESPECTING BOOTSTRAP METHODS FOR ESTIMATING DISTRIBUTIONS OF SETS AND FUNCTIONS OF EIGENVALUES estimators, or of functions of those estimators, when one or more of the true eigenvalues are tied. The m to choice of m. In this paper we propose a new approach, where a tie diagnostic is used to determine

Paul, Debashis

69

Coupling Human Mobility and Social Ties  

E-print Network

Studies using massive, passively data collected from communication technologies have revealed many ubiquitous aspects of social networks, helping us understand and model social media, information diffusion, and organizational dynamics. More recently, these data have come tagged with geographic information, enabling studies of human mobility patterns and the science of cities. We combine these two pursuits and uncover reproducible mobility patterns amongst social contacts. First, we introduce measures of mobility similarity and predictability and measure them for populations of users in three large urban areas. We find individuals' visitations patterns are far more similar to and predictable by social contacts than strangers and that these measures are positively correlated with tie strength. Unsupervised clustering of hourly variations in mobility similarity identifies three categories of social ties and suggests geography is an important feature to contextualize social relationships. We find that the composi...

Toole, Jameson L; Schneider, Christian M; Gonzalez, Marta C

2015-01-01

70

U.S. TIES: Diffusing technologies abroad  

SciTech Connect

Technology transfer programs in the US have traditionally concentrated on the supply side of the market for environmental technologies. Using a procedure often referred to as ``technology push,`` these programs first identify a promising technology, then attempt to place it with a user who needs it. Conversely, US development assistance programs abroad have tended to focus on the user`s environmental problems and the consequent demand for environmental technologies and expertise--in other words, ``market pull.`` They have not, as a matter of course, tried to match an identified environmental problem overseas with the vendor of a technology or service in the US. Designed to enlist the private sector on behalf of the global environment, US Technology for International Environmental Solutions (US TIES) brings together the supply and demand sides of environmental technology in a way EPA has never done before. US TIES projects help strengthen environmental legislation and institutions worldwide. By focusing on the development of environmental assessment, monitoring, and human-resource capabilities, the programs help countries to deal with their environmental problems while creating the demand for US environmental technologies and expertise. US TIES projects assist developing countries in identifying and mitigating specific environmental problems, with a particular emphasis on the assessment of various technology, supplier, and financing options.

Koehler, J.; Lingle, S.

1994-12-31

71

Inferring social ties from geographic coincidences  

PubMed Central

We investigate the extent to which social ties between people can be inferred from co-occurrence in time and space: Given that two people have been in approximately the same geographic locale at approximately the same time, on multiple occasions, how likely are they to know each other? Furthermore, how does this likelihood depend on the spatial and temporal proximity of the co-occurrences? Such issues arise in data originating in both online and offline domains as well as settings that capture interfaces between online and offline behavior. Here we develop a framework for quantifying the answers to such questions, and we apply this framework to publicly available data from a social media site, finding that even a very small number of co-occurrences can result in a high empirical likelihood of a social tie. We then present probabilistic models showing how such large probabilities can arise from a natural model of proximity and co-occurrence in the presence of social ties. In addition to providing a method for establishing some of the first quantifiable estimates of these measures, our findings have potential privacy implications, particularly for the ways in which social structures can be inferred from public online records that capture individuals’ physical locations over time. PMID:21148099

Crandall, David J.; Backstrom, Lars; Cosley, Dan; Suri, Siddharth; Huttenlocher, Daniel; Kleinberg, Jon

2010-01-01

72

Modeling Social Ties and Household Mobility  

PubMed Central

Underlying the aggregate phenomena of persistent problems such as urban sprawl and spatial socio-economic disparity is the individual choice of where to live. This study develops an agent-based model to simulate social and economic influences on neighborhood choice. With Danville, Illinois as an empirical context, a pattern-oriented approach is employed to examine the role of social ties in shaping intra-urban household mobility. In the model, household agents decide whether and where to relocate within the community based upon factors such as neighborhood attractiveness, affordability, and the density of a household's social network in the prospective block group. Social network and neighborhood choices are encoded with logit utility functions. The relative influence of factors affecting the formation of social ties in the simulated social network, such as geographic proximity, similarity of income, race, and presence of children, are adjusted using parameter variation to create alternative model settings. Simulated migration patterns resulting from different network and neighborhood choice coefficients are compared with observed migration patterns over a two-year period. Based upon 1000 simulation experiments, a regression of homeowner migration error (the difference between simulated and observed migration) relative to the parameter settings revealed components of social network choice such as income, race, and probability of local ties to be significant in matching observed migration patterns. A non-linear effect of simulated social networks on household mobility and thus migration error was exhibited in this study. PMID:25035520

Metcalf, Sara S.

2013-01-01

73

Bioabsorbable thread for tight tying of bones.  

PubMed

The purpose of this research was to develop a bioabsorbable thread for tight fixation of fractured bones and to examine its mechanical performance in an in-vitro simulation study. The thread is a blend of bioabsorbable poly(L-lactic acid); (PLLA) and poly(epsilon-caprolactone); (PCL) fibers and can be tightly connected by fusion welding of the PCL fibers. The tying strength of the PLLA-PCL blend thread was 39.7 N, which was comparable to that of stainless steel wire. A testing machine was fabricated to measure the fatigue strength of the tying by simulating bone fixation. The results showed that metal wires always failed because of breakage within 25,000 loading cycles, whereas the blend threads did not fail until 50,000 loading cycles. The looseness of tying for simulated bone fixation by the blend thread was within 1mm even after 50 000 loading cycles. In-vivo testing using rats revealed that the blend thread did not cause any severe inflammatory reaction. PMID:10664440

Hattori, K; Tomita, N; Tamai, S; Ikada, Y

2000-01-01

74

Grid-Tied Photovoltaic Power System  

NASA Technical Reports Server (NTRS)

A grid-tied photovoltaic (PV) power system is connected directly to the utility distribution grid. Facility power can be obtained from the utility system as normal. The PV system is synchronized with the utility system to provide power for the facility, and excess power is provided to the utility. Operating costs of a PV power system are low compared to conventional power technologies. This method can displace the highest-cost electricity during times of peak demand in most climatic regions, and thus reduce grid loading. Net metering is often used, in which independent power producers such as PV power systems are connected to the utility grid via the customers main service panels and meters. When the PV power system is generating more power than required at that location, the excess power is provided to the utility grid. The customer pays the net of the power purchased when the on-site power demand is greater than the onsite power production, and the excess power is returned to the utility grid. Power generated by the PV system reduces utility demand, and the surplus power aids the community. Modern PV panels are readily available, reliable, efficient, and economical, with a life expectancy of at least 25 years. Modern electronics have been the enabling technology behind grid-tied power systems, making them safe, reliable, efficient, and economical with a life expectancy equal to the modern PV panels. The grid-tied PV power system was successfully designed and developed, and this served to validate the basic principles developed, and the theoretical work that was performed. Grid-tied PV power systems are reliable, maintenance- free, long-life power systems, and are of significant value to NASA and the community. Of particular value are the analytical tools and capabilities that have been successfully developed. Performance predictions can be made confidently for grid-tied PV systems of various scales. The work was done under the NASA Hybrid Power Management (HPM) Program, which is the integration of diverse power devices in an optimal configuration for space and terrestrial applications.

Eichenberg, Dennis J.

2011-01-01

75

Bow-tie antennas on a dielectric half-space - Theory and experiment  

NASA Technical Reports Server (NTRS)

A new formulation is discussed for the rigous calculation of the radiation pattern of a bow-tie antenna of finite length and infinitesimal thickness, placed on a lossless dielectric substrate. The analysis is based on a representation of the current density on the metal surface of the antenna as a sum of an imposed (quasistatic) term and a set of current modes with unknown amplitudes. Free-space fields that are expressed in terms of continuous spectra of symmetrized plane waves are matched to the current modes using the method of moments. The resulting set of equations are solved for the unknown current amplitudes. The calculations show that for increasing bow length the antenna impedance spirals rapidly to a value predicted by transmission line theory. The theory also shows that the E-plane pattern of a two-wavelength, 60-deg bow-tie antenna is dominated by low-loss current modes propagating at the dielectric wavenumber. As the bow tie narrows, the loss of the modes increases, and the dominant wavenumber tends to the quasi-static value. Pattern measurements made at 94 GHz are shown to agree well with theoretical predictions. Measurements for a long-wire antenna, a linear array of bow-tie elements, and a log-periodic antenna are also presented.

Compton, Richard C.; Mcphedran, Ross C.; Popovic, Zorana; Rebeiz, Gabriel M.; Tong, Peter P.

1987-01-01

76

Ties Matter: Complexity of Manipulation when Tie-breaking with a Random Vote Haris Aziz, Serge Gaspers, Nicholas Mattei, Nina Narodytska, and Toby Walsh  

E-print Network

Ties Matter: Complexity of Manipulation when Tie-breaking with a Random Vote Haris Aziz, Serge on strategic voting of tie-breaking by means of considering the order of tied candidates within a random vote. We compare this to another non-deterministic tie-breaking rule where we simply choose candidate uni

Walsh, Toby

77

Power Generation Capabilities of Tie Tube Assemblies  

NASA Astrophysics Data System (ADS)

Second generation nuclear thermal rocket engine designs, employing solid core reactors and expander engine cycles, generally rely on some form of nuclear-driven heater to supply the major portion of thermal energy required to preheat the turbine-drive gases. If adequate heat transfer occurs, not only will efficiency-enhancing turbine-inlet temperatures be realized, but sufficient energy will be available to enable engine operation at chamber pressures ranging to at least 2,000 psia. For the case of reactor cores employing prismatic fuel elements, the utilization of tie tube assemblies, as first employed in the core-support subsystem of the Phoebus II reactor, can provide the basis of an array of propellant (hydrogen) preheaters that offer an ample supply of energy and temperature to enable candidate expander engine cycles over a wide range of operating parameters, without reducing the total enthalpy of the core-exit gas and its attendant effect on specific impulse. By modifying the tie tube design concept set forth in LASL's Nuclear Rocket Engine definition study, a powerful, weight and packaging-effective, preheater assembly can be realized. The design features of these tie tube assemblies reflect their functional objectives, core criticality considerations, and space constraints. Since the core pressure and inertial mass loads are carried by these assemblies, the structural tubular element(s) also provide coolant passage(s) for the hydrogen. The transfer of heat to the coolant surfaces is controlled by the effective thermal conductivity of the filler structure and ``insulating sleeves,'' which surround the tubular elements and are in controlled thermal contact with the surrounding core fuel elements. An option exists to further increase the transported heat to the coolant walls by the selective loading of the filler structure, ``insulating sleeves,'' and the moderator annular element with fissionable material.

Gunn, Stanley V.; Hedstrom, James; Hundal, Rolv

1994-07-01

78

Tie – an Accessory Fashion Detail or a Symbol?  

PubMed Central

Aim The first aim of this study was to establish the frequency of wearing a tie or business neckerchief on different occasions and in relation to age and educational level. The second aim was to establish whether men who frequently wear a tie were attributed certain characteristics more often than men who rarely wear a tie and to establish whether there were differences in the attribution of these characteristics according to sex, age, educational level, and the frequency of wearing a tie. Method Data were collected in 2005 by a method of face to face interview on a national representative sample (n?=?1007). Participants estimated how often they wore a tie or business neckerchief on 9 different occasions. They also estimated whether each of 14 characteristics was more pronounced in men who frequently wear a tie. Results Tie was most frequently worn on festive and formal occasions, such as weddings and festive gatherings, and least frequently on family gatherings and when traveling. On all occasions, tie was more often worn by men of higher educational level and of older and middle age. A relatively small proportion of Croatian citizens based their conclusions on men’s characteristics on the frequency of wearing a tie. Men who frequently wear a tie were relatively most often attributed the characteristics of ambition, politeness, and respectability, with significant differences found between persons who attributed these characteristics according to sex, age, educational level, and the frequency of wearing a tie by the participants themselves. Conclusion Wearing a tie or neckerchief is an exception rather than a rule for most of the Croatian population, and is associated only with specific, primarily festive and formal occasions. Such use of the tie suggests that people adapt their style of clothing to the expectations of others and use it as a specific symbol of the occasion. PMID:17710774

Šaki?, Vlado; Franc, Renata; Ivi?i?, Ines; Mari?i?, Jelena

2007-01-01

79

Strong Ties, Weak Ties, and Human Capital: Latino Immigrant Employment outside the Enclave  

ERIC Educational Resources Information Center

This study focuses on the role of social ties and human capital in the integration of Latino immigrants into the local economy. This analysis extends earlier research by focusing on more rural contexts with limited labor-market opportunities and less access to social resources provided by coethnics. We reconsider conclusions of previous studies by…

Pfeffer, Max J.; Parra, Pilar A.

2009-01-01

80

Week 1 Lecture Global TIES Intro: Nuts `n Bolts  

E-print Network

Week 1 Lecture Global TIES Intro: Nuts `n Bolts April 5, 2013 #12;Introductions · Mandy Bratton, Director ­ OH by appointment, IDEA Center, Jacobs Hall ­ mbratton@eng.ucsd.edu · Greg Hattemer, Global TIES commitment ~8hrs/week #12;Lecture Schedule 1 4/5 Global TIES Intro: Nuts 'n Bolts 2 4/12 EH&S Training 3 4

Fainman, Yeshaiahu

81

Week 1 Lecture Global TIES Intro: Nuts `n Bolts  

E-print Network

Week 1 Lecture Global TIES Intro: Nuts `n Bolts October 5, 2012 #12;Introductions · Mandy Bratton, Director ­ OH by appointment, IDEA Center, Jacobs Hall ­ mbratton@eng.ucsd.edu · Greg Hattemer, Global TIES" - Lecture 1 10/5 Global TIES Intro: Nuts 'n Bolts 2 10/12 EH&S Training 3 10/19 TBA 4 10/26 TBA 5 11/2 TBA 6

Fainman, Yeshaiahu

82

Week 1 Lecture Global TIES Intro: Nuts `n Bolts  

E-print Network

Week 1 Lecture Global TIES Intro: Nuts `n Bolts January 11, 2013 #12;Introductions · Mandy Bratton, Director ­ OH by appointment, IDEA Center, Jacobs Hall ­ mbratton@eng.ucsd.edu · Greg Hattemer, Global TIES commitment ~8hrs/week #12;Lecture Schedule 1 1/11 Global TIES Intro: Nuts 'n Bolts 2 1/18 EH&S Training 3 1

Fainman, Yeshaiahu

83

Failure of expansion joint tie rods -- Impact on bellows integrity  

SciTech Connect

Expansion joints are used in piping systems to accomodate pipe deflections during service and to facilitate fitup. Often, tie rods are employed to limit the range of axial deflection. Additional restraint against excessive displacement can be provided by the surrounding pipe and associated supports. This paper presents a methodology that was employed to estimate the consequences of tie rod failure. Of particular interest is whether tie rod failure can lead to sufficient displacement as to cause bellows rupture.

Daugherty, W.L.; Miller, R.F.

1992-01-01

84

Failure of expansion joint tie rods -- Impact on bellows integrity  

SciTech Connect

Expansion joints are used in piping systems to accomodate pipe deflections during service and to facilitate fitup. Often, tie rods are employed to limit the range of axial deflection. Additional restraint against excessive displacement can be provided by the surrounding pipe and associated supports. This paper presents a methodology that was employed to estimate the consequences of tie rod failure. Of particular interest is whether tie rod failure can lead to sufficient displacement as to cause bellows rupture.

Daugherty, W.L.; Miller, R.F.

1992-12-31

85

Chord Panel Post, Vertical X Bracing & Horizontal Tie Joint ...  

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

Chord Panel Post, Vertical X Bracing & Horizontal Tie Joint Detail; Chord Joining Block & Spacer Block Detail; Cross Bracing Joint Detail; Chord Panel Post Diagonal & Horizontal Tie Joint Detail - Jackson Covered Bridge, Spanning Sugar Creek, CR 775N (Changed from Spanning Sugar Creek), Bloomingdale, Parke County, IN

86

The Enigma of the Television Tie-In  

Microsoft Academic Search

The television tie-in forms an area of literature that is often overlooked and, despite the frequency with which the term is used, it is rarely defined in reference sources. Books of this type have yet to receive widespread critical acceptance, yet the popularity of television tie-ins among young readers has been shown to be considerable. For many commentators, such literature

Naomi V. Hay-Gibson; Andrew K. Shenton

2009-01-01

87

Complex Contagion and The Weakness of Long Ties in Social Networks  

E-print Network

Complex Contagion and The Weakness of Long Ties in Social Networks: Revisited Jie Gao Stony Brook University 1 #12;Social Ties and Tie Strength · Strong ties ­ Family members, close friends, colleagues ­ People who regularly spend time together ­ Typically a small number · Weak ties ­ People you know

Gao, Jie

88

Department of Mechanical Engineering Fall 2011 The One-Handed Zip Tie  

E-print Network

PENNSTATE Department of Mechanical Engineering Fall 2011 The One-Handed Zip Tie Overview The problem presented by our sponsor was the standard zip tie. A standard tie has two major flaws; it requires the team was to reinvent the zip tie by designing and producing a one-handed irreversible tie, while also

Demirel, Melik C.

89

Error assessment of local tie vectors in space geodesy  

NASA Astrophysics Data System (ADS)

For the computation of the ITRF, the data of the geometric space-geodetic techniques on co-location sites are combined. The combination increases the redundancy and offers the possibility to utilize the strengths of each technique while mitigating their weaknesses. To enable the combination of co-located techniques each technique needs to have a well-defined geometric reference point. The linking of the geometric reference points enables the combination of the technique-specific coordinate to a multi-technique site coordinate. The vectors between these reference points are called "local ties". The realization of local ties is usually reached by local surveys of the distances and or angles between the reference points. Identified temporal variations of the reference points are considered in the local tie determination only indirectly by assuming a mean position. Finally, the local ties measured in the local surveying network are to be transformed into the ITRF, the global geocentric equatorial coordinate system of the space-geodetic techniques. The current IERS procedure for the combination of the space-geodetic techniques includes the local tie vectors with an error floor of three millimeters plus a distance dependent component. This error floor, however, significantly underestimates the real accuracy of local tie determination. To fullfill the GGOS goals of 1 mm position and 0.1 mm/yr velocity accuracy, an accuracy of the local tie will be mandatory at the sub-mm level, which is currently not achievable. To assess the local tie effects on ITRF computations, investigations of the error sources will be done to realistically assess and consider them. Hence, a reasonable estimate of all the included errors of the various local ties is needed. An appropriate estimate could also improve the separation of local tie error and technique-specific error contributions to uncertainties and thus access the accuracy of space-geodetic techniques. Our investigations concern the simulation of the error contribution of each component of the local tie definition and determination. A closer look into the models of reference point definition, of accessibility, of measurement, and of transformation is necessary to properly model the error of the local tie. The effect of temporal variations on the local ties will be studied as well. The transformation of the local survey into the ITRF can be assumed to be the largest error contributor, in particular the orientation of the local surveying network to the ITRF.

Falkenberg, Jana; Heinkelmann, Robert; Schuh, Harald

2014-05-01

90

30 CFR 75.705-10 - Tying into energized high-voltage surface circuits.  

Code of Federal Regulations, 2010 CFR

... false Tying into energized high-voltage surface circuits. 75.705-10...705-10 Tying into energized high-voltage surface circuits. If the...circuit by tying into an energized high-voltage surface line is...

2010-07-01

91

30 CFR 77.704-10 - Tying into energized high-voltage surface circuits.  

Code of Federal Regulations, 2010 CFR

... false Tying into energized high-voltage surface circuits. 77.704-10...704-10 Tying into energized high-voltage surface circuits. If the work...circuit by tying into an energized high-voltage surface line is...

2010-07-01

92

75 FR 34941 - Review of the Commission's Program Access Rules and Examination of Programming Tying Arrangements  

Federal Register 2010, 2011, 2012, 2013

...Program Access Rules and Examination of Programming Tying Arrangements AGENCY: Federal...Program Access Rules and Examination of Programming Tying Arrangements, MB Docket No...Program Access Rules and Examination of Programming Tying Arrangements, MB Docket...

2010-06-21

93

Ties for the integral group ring of the symmetric group Matthias K"unzer  

E-print Network

Ties for the integral group ring of the symmetric group.1.1 The tie matrix and the total index . . . . . . . . . . . . . . .* * . . . 1 1.1.2 Total index for quasiblock indices. . . . . . . . . . . . . * *. . . 4 1.1.4 Ties for the center

Künzer, Matthias

94

77 FR 10502 - MATL LLP; Montana Alberta Tie, Ltd; Notice of Petition for Declaratory Order  

Federal Register 2010, 2011, 2012, 2013

...Docket No. EL12-26-000] MATL LLP; Montana Alberta Tie, Ltd; Notice of Petition for Declaratory Order Take...February 13, 2012, MATL LLP (MATL) and Montana Alberta Tie Ltd (Montana Alberta Tie) (collectively, Applicants), filed a...

2012-02-22

95

Chord, Horizontal Tie Bar & Crossbracing Joint Details; Crossbracing Center ...  

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

Chord, Horizontal Tie Bar & Crossbracing Joint Details; Crossbracing Center Joint Detail; Chord, Panel Posts, Braces & Counterbrace Joint Detail - Brownsville Covered Bridge, Spanning East Fork Whitewater River (moved to Eagle Creek Park, Indianapolis), Brownsville, Union County, IN

96

Study Ties Teen Smoking to Risk of Severe Menstrual Cramps  

MedlinePLUS

... this page, please enable JavaScript. Study Ties Teen Smoking to Risk of Severe Menstrual Cramps Tobacco use ... Tuesday, November 18, 2014 Related MedlinePlus Pages Menstruation Smoking and Youth MONDAY, Nov. 17, 2014 (HealthDay News) -- ...

97

9. DETAIL OF EAST PIER OF BRIDGE, SHOWING STEEL TIE ...  

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

9. DETAIL OF EAST PIER OF BRIDGE, SHOWING STEEL TIE BARS INSERTED TO STABILIZE CRACKS. - Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street at Lancaster Avenue, Philadelphia, Philadelphia County, PA

98

Cohesive Ties and Chains in Good and Poor Freshman Essays.  

ERIC Educational Resources Information Center

Compares cohesive ties and chains in the good and poor essays of college freshmen. Results indicate that longer chains, greater variety of words, and greater maturity or word choice characterize good writing. (SRT)

Neuner, Jerome L.

1987-01-01

99

Breast Cancer Chemo Tied to Small but Significant Leukemia Risk  

MedlinePLUS

... sharing features on this page, please enable JavaScript. Breast Cancer Chemo Tied to Small But Significant Leukemia Risk ... in about a half-percent of early stage breast cancer patients, study finds (*this news item will not ...

100

TOXICITY IDENTIFICATION EVALUATION (TIE) RESULTS FOR METAL CONTAMINATED SEDIMENTS  

EPA Science Inventory

Identification of contaminants in sediment is necessary for sound management decisions on sediment disposal, remediation, determination of ecological risk, and source identification. We have been developing sediment toxicity identification evaluation (TIE) techniques that allow ...

101

High School Football Tied to Brain Changes, Even without Concussion  

MedlinePLUS

... on this page, please enable JavaScript. High School Football Tied to Brain Changes, Even Without Concussion Small ... might lead to brain changes among high school football players. The study found that repeated blows to ...

102

External linkage tie permits reduction in ducting system flange thickness  

NASA Technical Reports Server (NTRS)

External linkage tie reduces flange thickness and increases seal efficiency in high pressure ducting and piping systems. The linkage transmits the pressure separating load to the tube wall behind the flange allowing the flange to support only the seal.

Pfleger, R. O.

1966-01-01

103

16. VIEW OF STEEL FLOOR BEAMS WITH TIE RODS, SHOWING ...  

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

16. VIEW OF STEEL FLOOR BEAMS WITH TIE RODS, SHOWING SWAY BRACING, SUPPORT TIMBER STRINGERS AND BECK, WEST END, LOOKING WEST - Hot Springs Bridge, Spanning Bruneau River, Hot Springs Road, Bruneau, Owyhee County, ID

104

Mother's Depression Tied to Later Delinquency in Kids  

MedlinePLUS

... features on this page, please enable JavaScript. Mother's Depression Tied to Later Delinquency in Kids Treating parent's ... 2015) Monday, December 22, 2014 Related MedlinePlus Pages Depression Parenting Teen Mental Health MONDAY, Dec. 22, 2014 ( ...

105

Ulcer Bacteria Tied to Lower Multiple Sclerosis Risk in Women  

MedlinePLUS

... features on this page, please enable JavaScript. Ulcer Bacteria Tied to Lower Multiple Sclerosis Risk in Women ... 2015 (HealthDay News) -- Women who harbor the stomach bacteria Helicobacter pylori (or H. pylori ) may be less ...

106

25. DETAIL OF TIE ROD REINFORCING BELOW WESTERNMOST MOVABLE STAGE ...  

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

25. DETAIL OF TIE ROD REINFORCING BELOW WESTERNMOST MOVABLE STAGE SECTION, LOWER LEVEL OF STAGE, LOOKING SOUTH. TAKEN FROM A POINT JUST SOUTH OF RAM IN IL-1007-24. - Auditorium Building, 430 South Michigan Avenue, Chicago, Cook County, IL

107

Energy Drinks Tied to Inattention, Hyper Behavior in Middle Schoolers  

MedlinePLUS

... sharing features on this page, please enable JavaScript. Energy Drinks Tied to Inattention, Hyper Behavior in Middle ... Child Nutrition MONDAY, Feb. 9, 2015 (HealthDay News) -- Energy drinks are linked to hyperactivity and inattention in ...

108

Eczema Tied to Bone Fracture Risk in Study  

MedlinePLUS

... sharing features on this page, please enable JavaScript. Eczema Tied to Bone Fracture Risk in Study Risk ... 2015) Thursday, October 30, 2014 Related MedlinePlus Pages Eczema Fractures Joint Disorders THURSDAY, Oct. 30, 2014 (HealthDay ...

109

Views of the Apollo 11 Twentieth Anniversary Black Tie reception  

NASA Technical Reports Server (NTRS)

View from the Apollo 11 Twentieth Anniversary Black Tie reception at the downtown Houston Hyatt Regency Hotel. Scene show NASA/JSC Director Aaron Cohen talking with NASA Administrator Richard H. Truly and his wife, Cody.

1989-01-01

110

DO TIE LABORATORY BASED METHODS REALLY REFLECT FIELD CONDITIONS  

EPA Science Inventory

Sediment Toxicity Identification and Evaluation (TIE) methods have been developed for both interstitial waters and whole sediments. These relatively simple laboratory methods are designed to identify specific toxicants or classes of toxicants in sediments; however, the question ...

111

DO TIE LABORATORY BASED ASSESSMENT METHODS REALLY PREDICT FIELD EFFECTS?  

EPA Science Inventory

Sediment Toxicity Identification and Evaluation (TIE) methods have been developed for both porewaters and whole sediments. These relatively simple laboratory methods are designed to identify specific toxicants or classes of toxicants in sediments; however, the question of whethe...

112

Quality versus quantity of social ties in experimental cooperative networks.  

PubMed

Recent studies suggest that allowing individuals to choose their partners can help to maintain cooperation in human social networks; this behaviour can supplement behavioural reciprocity, whereby humans are influenced to cooperate by peer pressure. However, it is unknown how the rate of forming and breaking social ties affects our capacity to cooperate. Here we use a series of online experiments involving 1,529 unique participants embedded in 90 experimental networks, to show that there is a 'Goldilocks' effect of network dynamism on cooperation. When the rate of change in social ties is too low, subjects choose to have many ties, even if they attach to defectors. When the rate is too high, cooperators cannot detach from defectors as much as defectors re-attach and, hence, subjects resort to behavioural reciprocity and switch their behaviour to defection. Optimal levels of cooperation are achieved at intermediate levels of change in social ties. PMID:24226079

Shirado, Hirokazu; Fu, Feng; Fowler, James H; Christakis, Nicholas A

2013-01-01

113

Quality versus quantity of social ties in experimental cooperative networks  

PubMed Central

Recent studies suggest that allowing individuals to choose their partners can help to maintain cooperation in human social networks; this behaviour can supplement behavioural reciprocity, whereby humans are influenced to cooperate by peer pressure. However, it is unknown how the rate of forming and breaking social ties affects our capacity to cooperate. Here we use a series of online experiments involving 1,529 unique participants embedded in 90 experimental networks, to show that there is a ‘Goldilocks’ effect of network dynamism on cooperation. When the rate of change in social ties is too low, subjects choose to have many ties, even if they attach to defectors. When the rate is too high, cooperators cannot detach from defectors as much as defectors re-attach and, hence, subjects resort to behavioural reciprocity and switch their behaviour to defection. Optimal levels of cooperation are achieved at intermediate levels of change in social ties. PMID:24226079

Shirado, Hirokazu; Fu, Feng; Fowler, James H.; Christakis, Nicholas A.

2013-01-01

114

Family Support Tied to Safer Sex for Young Gay Males  

MedlinePLUS

... please enable JavaScript. Family Support Tied to Safer Sex for Young Gay Males: Study Closeness, open discussions ... Issues Gay, Lesbian, Bisexual and Transgender Health Teen Sexual Health WEDNESDAY, Oct. 15, 2014 (HealthDay News) -- Young gay ...

115

Less Commonly Used Obesity Surgery Tied to More Weight Loss  

MedlinePLUS

... this page, please enable JavaScript. Less Commonly Used Obesity Surgery Tied to More Weight Loss But study ... 2015) Thursday, February 5, 2015 Related MedlinePlus Pages Obesity Surgery Weight Loss Surgery THURSDAY, Feb. 5, 2015 ( ...

116

17. INTERIOR DETAIL OF TIED ARCH TRUSS, BUILDING 1. ...  

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

17. INTERIOR DETAIL OF TIED ARCH TRUSS, BUILDING 1. - New Orleans City Railroad Company, Canal Station, Square 365, bounded by Canal, North Dupre, Iberville, & North White Streets, New Orleans, Orleans Parish, LA

117

Obesity Tied to Half a Million Cancers Worldwide, Report Shows  

MedlinePLUS

... sharing features on this page, please enable JavaScript. Obesity Tied to Half a Million Cancers Worldwide, Report Shows Largest number of obesity-related cancers diagnosed in North America and Europe, ...

118

SUBSEA FABRICATION AND TIE-IN Wednesday, March 10, 2010  

E-print Network

was awarded the fabrication of the subsea manifolds for the North Amethyst offshore oil development, operated by Husky Energy. North Amethyst will be tied in to the existing White Rose oil field, 350 kilometres off

George, Glyn

119

Smoking Tied to Higher Death Risk After Colon Cancer  

MedlinePLUS

... JavaScript. Smoking Tied to Higher Death Risk After Colon Cancer After 7 years of follow-up, researchers found ... of earlier death for people who've survived colon cancer, a new study warns. American Cancer Society researchers ...

120

Certain Allergy, Depression Meds Tied to Higher Odds for Dementia  

MedlinePLUS

... Allergy, Depression Meds Tied to Higher Odds for Dementia Class of drugs interferes with a key brain ... Preidt Wednesday, February 4, 2015 Related MedlinePlus Pages Dementia Medicines MONDAY, Jan. 26, 2015 (HealthDay News) -- Long- ...

121

Characterization of Swine Wastewater by Toxicity Identification Evaluation Methodology (TIE)  

Microsoft Academic Search

Since swine wastewater is used by farmers for soil fertilization, evaluation of toxic compounds or micro-contaminants of separate\\u000a streams is required. This paper uses the toxicity identification evaluation (TIE) procedure for the physicochemical and ecotoxicological\\u000a characterization of swine wastewater. To distinguish the most important toxic compounds, a physicochemical characterization\\u000a and phase I-TIE procedure were performed. The acute toxic effect of

C. Alejandra Villamar; Teresa Cañuta; Marisol Belmonte; Gladys Vidal

122

Family Ties, Physical Health, and Psychological Well-Being  

Microsoft Academic Search

Objectives: This study assesses the impact of number and quality of family ties on the health and well-being of elderly people. Method: Measures of the quantity and quality of family ties, adjusting for gender, education, and income, were correlated with the self-rating of health and well-being of a sample of 534 married parents between 68 and 73 years of age.

Andrea Kay Ryan; Fern K. Willits

2007-01-01

123

Transmission Communication  

E-print Network

ELEC3028 Digital Transmission -- MODEM S Chen Digital Communication System . Purpose: communicate: rate, quality # spectral bandwidth requirement . Major components: CODEC, MODEM and channel modulation input output CODEC MODEM Medium 1 #12; ELEC3028 Digital Transmission -- MODEM S Chen Digital

Chen, Sheng

124

AQUIFER TRANSMISSIVITY  

EPA Science Inventory

Evaluation of groundwater resources requires the knowledge of the capacity of aquifers to store and transmit ground water. This requires estimates of key hydraulic parameters, such as the transmissivity, among others. The transmissivity T (m2/sec) is a hydrauli...

125

Transmission zerocrossings  

E-print Network

ELEC3028 Digital Transmission -- MODEM S Chen Revision of Lecture 2 . Pulse shaping Tx/Rx filter­o# factor, and required baseband transmission bandwidth B = fs 2 (1+ #) MODEM components pulse shaping Tx: modulator/demodulator 27 #12; ELEC3028 Digital Transmission -- MODEM S Chen QAM Modulator / Demodulator

Chen, Sheng

126

Progress In Electromagnetics Research, PIER 49, 5369, 2004 CHARACTERISTICS OF BOW-TIE SLOT ANTENNA  

E-print Network

Progress In Electromagnetics Research, PIER 49, 53­69, 2004 CHARACTERISTICS OF BOW-TIE SLOT ANTENNA of Mississippi University, MS 38677, USA Abstract--The characteristics of a bow-tie slot antenna with tapered integrated circuits (MMIC) [1]. Bow-tie slot antennas have the advantage of wide bandwidth. A number of bow-tie

Elsherbeni, Atef Z.

127

Linking Ego-Networks using Cross-Ties Ju-Sung Lee  

E-print Network

Linking Ego-Networks using Cross-Ties Ju-Sung Lee Carnegie Mellon University Jan. 13, 2002 Paper information sources: attributes and alter-to-alter ties, including tie strengths. Furthermore, the gains from the inclusion of alter-to-alter ties are assessed as well as the expected error in the reformed network

Sadeh, Norman M.

128

14 CFR 25.519 - Jacking and tie-down provisions.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 2013-01-01 false Jacking and tie-down provisions. 25.519 Section... Ground Loads § 25.519 Jacking and tie-down provisions. (a) General...reaction applied in any direction. (c) Tie-down. If tie-down points are...

2013-01-01

129

14 CFR 25.519 - Jacking and tie-down provisions.  

...2014-01-01 2014-01-01 false Jacking and tie-down provisions. 25.519 Section... Ground Loads § 25.519 Jacking and tie-down provisions. (a) General...reaction applied in any direction. (c) Tie-down. If tie-down points are...

2014-01-01

130

Social-Tie-Based Information Dissemination in Mobile Opportunistic Social Networks  

E-print Network

Social-Tie-Based Information Dissemination in Mobile Opportunistic Social Networks Yunsheng Wang a distributed social tie strength calculation mechanism to identify the relationship between each set, The Strength of Weak Ties, the majority of the novel information dissemination is generated by weak ties. We

Wu, Jie

131

Texas 4-H Clothing and Textiles 2009-2010 Community Service Project Fleece Tie Blanket  

E-print Network

Texas 4-H Clothing and Textiles 2009-2010 Community Service Project Fleece Tie Blanket Supplies of both top and bottom. See diagram. 5. Starting on one side, start tying your knots. Tie knots on every other fringe around the blanket. Turn the whole blanket over and tie the remaining fringes into knots

132

Social-Tie-Based Information Dissemination in Mobile Opportunistic Social Networks  

E-print Network

Social-Tie-Based Information Dissemination in Mobile Opportunistic Social Networks Yunsheng Wang Opportunistic Social Networks Motivation Social-Tie-based Information Dissemination Tie Strength Calculation the properties of social networks and opportunistic networks #12;Motivation "The Strength of Weak Ties": Mark

Wu, Jie

133

14 CFR 25.519 - Jacking and tie-down provisions.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 2011-01-01 false Jacking and tie-down provisions. 25.519 Section... Ground Loads § 25.519 Jacking and tie-down provisions. (a) General...reaction applied in any direction. (c) Tie-down. If tie-down points are...

2011-01-01

134

14 CFR 25.519 - Jacking and tie-down provisions.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 2012-01-01 false Jacking and tie-down provisions. 25.519 Section... Ground Loads § 25.519 Jacking and tie-down provisions. (a) General...reaction applied in any direction. (c) Tie-down. If tie-down points are...

2012-01-01

135

Assessing Call and SMS Logs as an Indication of Tie Strength  

E-print Network

Assessing Call and SMS Logs as an Indication of Tie Strength JasonWiese, Jun-Ki Min, Jason I. Hong;Keywords: tie strength, smartphone, social graph #12;Abstract How effective are call and SMS logs in modeling tie strength? Frequency and duration of communication has long been cited as a major aspect of tie

136

Effects of weak ties on epidemic predictability on community networks  

NASA Astrophysics Data System (ADS)

Weak ties play a significant role in the structures and the dynamics of community networks. Based on the contact process, we study numerically how weak ties influence the predictability of epidemic dynamics. We first investigate the effects of the degree of bridge nodes on the variabilities of both the arrival time and the prevalence of disease, and find out that the bridge node with a small degree can enhance the predictability of epidemic spreading. Once weak ties are settled, the variability of the prevalence will display a complete opposite trend to that of the arrival time, as the distance from the initial seed to the bridge node or the degree of the initial seed increases. More specifically, the further distance and the larger degree of the initial seed can induce the better predictability of the arrival time and the worse predictability of the prevalence. Moreover, we discuss the effects of the number of weak ties on the epidemic variability. As the community strength becomes very strong, which is caused by the decrease of the number of weak ties, the epidemic variability will change dramatically. Compared with the case of the hub seed and the random seed, the bridge seed can result in the worst predictability of the arrival time and the best predictability of the prevalence.

Shu, Panpan; Tang, Ming; Gong, Kai; Liu, Ying

2012-12-01

137

Expression and significance of Tie-1 and Tie-2 receptors, and angiopoietins-1, 2 and 4 in colorectal adenocarcinoma: Immunohistochemical analysis and correlation with clinicopathological factors  

PubMed Central

AIM: There is strong evidence that tyrosine kinases are involved in the regulation of tumor progression, cellular growth and differentiation. Recently, many kinds of tyrosine kinase receptors have been reported, among them Tie-1 and Tie-2 receptors constitute a major class. Angiopoietin (Ang)-1 is known as a ligand of Tie-2 tyrosine kinase receptor. The objective of this study was to establish a comprehensive Tie-1 and Tie-2 and Ang-1, 2 and 4 expression profile in human colorectal adenocarcinomas. METHODS: We examined 96 cases of surgically resected human colorectal adenocarcinoma by immunohistochemistry and investigated the statistical correlation between the expressions of Ties and Angs and clinicopathological factors. RESULTS: Among the 96 cases of adenocarcinoma, 87 (90.6%), 92 (95.8%), 83 (86.5%), 89 (92.7%), and 76 cases (79.2%) showed positive staining in the cytoplasm of carcinoma cells for the Tie-1 and Tie-2 and Ang-1, 2 and 4 proteins, respectively. Histologically, the expressions of Ties and Angs were variable. The expressions of Ties and Angs were correlated with several clinicopathological factors, but did not correlate with the presence of lymph node metastasis. Ties and Angs were highly expressed in human colorectal adenocarcinoma cells. CONCLUSION: These findings suggest that the Tie-Ang receptor-ligand complex is one of the factors involved in the cellular differentiation and progression of human colorectal adenocarcinoma. PMID:15742397

Nakayama, Toshiyuki; Hatachi, Go; Wen, Chun-Yang; Yoshizaki, Ayumi; Yamazumi, Kazuyuki; Niino, Daisuke; Sekine, Ichiro

2005-01-01

138

Time varying networks and the weakness of strong ties.  

PubMed

In most social and information systems the activity of agents generates rapidly evolving time-varying networks. The temporal variation in networks' connectivity patterns and the ongoing dynamic processes are usually coupled in ways that still challenge our mathematical or computational modelling. Here we analyse a mobile call dataset and find a simple statistical law that characterize the temporal evolution of users' egocentric networks. We encode this observation in a reinforcement process defining a time-varying network model that exhibits the emergence of strong and weak ties. We study the effect of time-varying and heterogeneous interactions on the classic rumour spreading model in both synthetic, and real-world networks. We observe that strong ties severely inhibit information diffusion by confining the spreading process among agents with recurrent communication patterns. This provides the counterintuitive evidence that strong ties may have a negative role in the spreading of information across networks. PMID:24510159

Karsai, Márton; Perra, Nicola; Vespignani, Alessandro

2014-01-01

139

Time varying networks and the weakness of strong ties  

PubMed Central

In most social and information systems the activity of agents generates rapidly evolving time-varying networks. The temporal variation in networks' connectivity patterns and the ongoing dynamic processes are usually coupled in ways that still challenge our mathematical or computational modelling. Here we analyse a mobile call dataset and find a simple statistical law that characterize the temporal evolution of users' egocentric networks. We encode this observation in a reinforcement process defining a time-varying network model that exhibits the emergence of strong and weak ties. We study the effect of time-varying and heterogeneous interactions on the classic rumour spreading model in both synthetic, and real-world networks. We observe that strong ties severely inhibit information diffusion by confining the spreading process among agents with recurrent communication patterns. This provides the counterintuitive evidence that strong ties may have a negative role in the spreading of information across networks. PMID:24510159

Karsai, Márton; Perra, Nicola; Vespignani, Alessandro

2014-01-01

140

Automatic Tie Pointer for In-Situ Pointing Correction  

NASA Technical Reports Server (NTRS)

The MARSAUTOTIE program generates tie points for use with the Mars pointing correction software "In-Situ Pointing Correction and Rover Microlocalization," (NPO-46696) Soft ware Tech Briefs, Vol. 34, No. 9 (September 2010), page 18, in a completely automated manner, with no operator intervention. It takes the place of MARSTIE, although MARSTIE can be used to interactively edit the tie points afterwards. These tie points are used to create a mosaic whose seams (boundaries of input images) have been geometrically corrected to reduce or eliminate errors and mis-registrations. The methods used to find appropriate tie points for use in creating a mosaic are unique, having been designed to work in concert with the "MARSNAV" program to be most effective in reducing or eliminating geometric seams in a mosaic. The program takes the input images and finds overlaps according to the nominal pointing. It then finds the most interesting areas using a scene activity metric. Points with higher scene activity are more likely to correlate successfully in the next step. It then uses correlation techniques to find matching points in the overlapped image. Finally, it performs a series of steps to reduce the number of tie points to a manageable level. These steps incorporate a number of heuristics that have been devised using experience gathered by tie pointing mosaics manually during MER operations. The software makes use of the PIG library as described in "Planetary Image Geometry Library" (NPO-46658), NASA Tech Briefs, Vol. 34, No. 12 (December 2010), page 30, so it is multi-mission, applicable without change to any in-situ mission supported by PIG. The MARSAUTOTIE algorithm is automated, so it requires no user intervention. Although at the time of this reporting it has not been done, this program should be suitable for integration into a fully automated mosaic production pipeline.

Deen, Robert G/

2011-01-01

141

Software For Tie-Point Registration Of SAR Data  

NASA Technical Reports Server (NTRS)

SAR-REG software package registers synthetic-aperture-radar (SAR) image data to common reference frame based on manual tie-pointing. Image data can be in binary, integer, floating-point, or AIRSAR compressed format. For example, with map of soil characteristics, vegetation map, digital elevation map, or SPOT multispectral image, as long as user can generate binary image to be used by tie-pointing routine and data are available in one of the previously mentioned formats. Written in FORTRAN 77.

Rignot, Eric; Dubois, Pascale; Okonek, Sharon; Van Zyl, Jacob; Burnette, Fred; Borgeaud, Maurice

1995-01-01

142

Welded tie plate feasibility study for ITER central solenoid structure  

NASA Astrophysics Data System (ADS)

The result of a Nitronic 50 (N50) weld-screening program conducted in support of CS-Tie Plate Structure Design and Development is reported here. The goal of this program is to evaluate four different weld practices and to select the best weld practice for thick section welding of the N50 tie plate structure. The structure design specifies both the weld and base metals have the same minimum mechanical properties requirements. The criteria for selecting the best weld practice are based on the combination of the 295 K tensile properties and the 4 K-tensile, fatigue, and fracture-toughness properties.

Walsh, R.; McRae, D.; Dalder, E.; Litherland, S.; Goddard, R.; Han, K.; Trosen, M.; Kuhlmann, D. D.

2014-01-01

143

Shift dynamics and control of dual-clutch transmissions  

Microsoft Academic Search

Shifts in a dual-clutch transmission (DCT) are realized by torque transfer from one clutch to another without traction interruption due to the controlled slippage of the clutches. The timing of engagement and disengagement of the two clutches is critical for achieving a smooth shift without engine flare and clutch tie-up. This paper presents an analytical model for the simulation, analysis

Manish Kulkarni; Taehyun Shim; Yi Zhang

2007-01-01

144

The Tie-dyed pathway promotes symplastic trafficking in the phloem  

PubMed Central

The tie-dyed1 (tdy1) and tdy2 mutants of maize exhibit leaf regions with starch hyperaccumulation and display unusual genetic interactions, suggesting they function in the same physiological process. Tdy2 encodes a putative callose synthase and is expressed in developing vascular tissues of immature leaves. Radiolabelling experiments and transmission electron microscopy (TEM) revealed symplastic trafficking within the phloem was perturbed at the companion cell/sieve element interface. Here, we show that as reported for tdy2 mutants, tdy1 yellow leaf regions display an excessive oil-droplet phenotype in the companion cells. Based on the proposed function of Tdy2 as a callose synthase, our previous work characterizing Tdy1 as a novel, transmembrane-localized protein, and the present findings, we speculate how TDY1 and TDY2 might interact to promote symplastic transport of both solutes and developmentally instructive macromolecules during vascular development at the companion cell/sieve element interface. PMID:23603956

Baker, R. Frank; Slewinski, Thomas L.; Braun, David M.

2013-01-01

145

SpTie1/2 is expressed in coelomocytes, axial organ and embryos of the sea urchin Strongylocentrotus purpuratus, and is an orthologue of vertebrate Tie1 and Tie2.  

PubMed

A full length cDNA sequence expressed in coelomocytes shows significant sequence match to vertebrate Tie1 and Tie2/TEK. Vertebrate Tie2/TEK is the receptor for the angiopoietins and plays an important role in angiogenesis and hematopoiesis, whereas Tie1 regulates the activity of Tie2. The deduced sequence of the SpTie1/2 protein has a similar order and organization of domains to the homologous vertebrate proteins including a highly conserved receptor tyrosine kinase domain in the cytoplasmic tail. The N terminus of the ectodomain has one immunoglobulin (Ig)-Tie2_1 domain, followed by an Ig domain, four epidermal growth factor domains, a second Ig domain, and three fibronectin type III domains. The SpTie1/2 gene is expressed in coelomocytes and the axial organ, whereas other organs do not show significant expression. The timing of embryonic expression corresponds with the differentiation of blastocoelar cells, the embryonic and larval immune cells. Searches of the sea urchin genome show several gene models encoding putative ligands and signaling proteins that might interact with SpTie1/2. We speculate that SpTie1/2 may be involved in the proliferation of sea urchin immune cells in both adults and embryos. PMID:20363251

Stevens, Margaret E; Dhillon, Jatinder; Miller, Chase A; Messier-Solek, Cynthia; Majeske, Audrey J; Zuelke, Dustin; Rast, Jonathan P; Smith, L Courtney

2010-08-01

146

Television Transmission  

Microsoft Academic Search

Experiments in the transmission of television signals over wire lines have been made from time to time as the television art has developed. The present paper discusses experiments made during the summer of 1940 with 441-line, 30-frame interlaced signals transmitted over coaxial cable and other telephone facilities. Some of the general problems of wire transmission have been included. In particular,

M. E. Strieby; C. L. Weis

1941-01-01

147

Tie-Zone Watershed, Bottlenecks, and Segmentation Robustness Analysis  

Microsoft Academic Search

In a recent paper (1), a new type of watershed (WS) transform was introduced: the tie-zone watershed (TZWS). This region-based watershed transform does not depend on arbitrary implementation and provides a unique (and thereby unbiased) optimal solution. Indeed, many optimal solutions are sometimes possible when segmenting an im- age by WS. The TZWS assigns each pixel to a catchment basin

Romaric Audigier; Roberto De Alencar Lotufo

2005-01-01

148

The Strength of the Strongest Ties in Collaborative Problem Solving  

NASA Astrophysics Data System (ADS)

Complex problem solving in science, engineering, and business has become a highly collaborative endeavor. Teams of scientists or engineers collaborate on projects using their social networks to gather new ideas and feedback. Here we bridge the literature on team performance and information networks by studying teams' problem solving abilities as a function of both their within-team networks and their members' extended networks. We show that, while an assigned team's performance is strongly correlated with its networks of expressive and instrumental ties, only the strongest ties in both networks have an effect on performance. Both networks of strong ties explain more of the variance than other factors, such as measured or self-evaluated technical competencies, or the personalities of the team members. In fact, the inclusion of the network of strong ties renders these factors non-significant in the statistical analysis. Our results have consequences for the organization of teams of scientists, engineers, and other knowledge workers tackling today's most complex problems.

de Montjoye, Yves-Alexandre; Stopczynski, Arkadiusz; Shmueli, Erez; Pentland, Alex; Lehmann, Sune

2014-06-01

149

Legal and Social Ties between Children and Cohabiting Fathers.  

ERIC Educational Resources Information Center

Examined whether legal ties between members in the nuclear family affect the father-child relationship after domestic breakup. Found no evidence that civil status could explain differences in the post-separation organization of parenting, but a sole legal custody arrangement from the child's birth may disfavor cohabiting fathers as future…

Ottosen, Mai Heide

2001-01-01

150

26. ROOM 210, VIEW TO THE SOUTHEAST. EXPOSED TIE BEAMS ...  

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

26. ROOM 210, VIEW TO THE SOUTHEAST. EXPOSED TIE BEAMS AT CEILING ARE BOXED IN PLYWOOD. WAINSCOTING IS PLYWOOD PANELING. CEILING AND UPPER WALL TREATMENT IS GYPSUM BOARD. CLERESTORY WINDOWS LINE BOTH LONG SIDES OF ROOM. - Presidio of San Francisco, Cavalry Stables, Cowles Street, between Lincoln Boulevard & McDowell Street, San Francisco, San Francisco County, CA

151

59. Downstream view of Waddell Dam showing buttress ties, crane, ...  

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

59. Downstream view of Waddell Dam showing buttress ties, crane, housing over penstock outlet (left) and storage building (right). Photographer Mark Durben, 1986. Source: Salt River Project. - Waddell Dam, On Agua Fria River, 35 miles northwest of Phoenix, Phoenix, Maricopa County, AZ

152

Social ties and health: The benefits of social integration  

Microsoft Academic Search

This article explores the relationship between level of social integration and various aspects of health. A search of the literature published since the mid-1970s (under the MEDLINE key words, “social ties”, “social network”, “social isolation”, “social environment”) presented strong evidence that social integration leads to reduced mortality risks, and to a better state of mental health. The evidence on physical

Teresa E. Seeman

1996-01-01

153

Neural correlates of dynamically evolving interpersonal ties predict prosocial behavior.  

PubMed

There is a growing interest for the determinants of human choice behavior in social settings. Upon initial contact, investment choices in social settings can be inherently risky, as the degree to which the other person will reciprocate is unknown. Nevertheless, people have been shown to exhibit prosocial behavior even in one-shot laboratory settings where all interaction has been taken away. A logical step has been to link such behavior to trait empathy-related neurobiological networks. However, as a social interaction unfolds, the degree of uncertainty with respect to the expected payoff of choice behavior may change as a function of the interaction. Here we attempt to capture this factor. We show that the interpersonal tie one develops with another person during interaction - rather than trait empathy - motivates investment in a public good that is shared with an anonymous interaction partner. We examined how individual differences in trait empathy and interpersonal ties modulate neural responses to imposed monetary sharing. After, but not before interaction in a public good game, sharing prompted activation of neural systems associated with reward (striatum), empathy (anterior insular cortex and anterior cingulate cortex) as well as altruism, and social significance [posterior superior temporal sulcus (pSTS)]. Although these activations could be linked to both empathy and interpersonal ties, only tie-related pSTS activation predicted prosocial behavior during subsequent interaction, suggesting a neural substrate for keeping track of social relevance. PMID:22403524

Fahrenfort, Johannes J; van Winden, Frans; Pelloux, Benjamin; Stallen, Mirre; Ridderinkhof, K Richard

2012-01-01

154

The Strength of the Strongest Ties in Collaborative Problem Solving  

PubMed Central

Complex problem solving in science, engineering, and business has become a highly collaborative endeavor. Teams of scientists or engineers collaborate on projects using their social networks to gather new ideas and feedback. Here we bridge the literature on team performance and information networks by studying teams' problem solving abilities as a function of both their within-team networks and their members' extended networks. We show that, while an assigned team's performance is strongly correlated with its networks of expressive and instrumental ties, only the strongest ties in both networks have an effect on performance. Both networks of strong ties explain more of the variance than other factors, such as measured or self-evaluated technical competencies, or the personalities of the team members. In fact, the inclusion of the network of strong ties renders these factors non-significant in the statistical analysis. Our results have consequences for the organization of teams of scientists, engineers, and other knowledge workers tackling today's most complex problems. PMID:24946798

de Montjoye, Yves-Alexandre; Stopczynski, Arkadiusz; Shmueli, Erez; Pentland, Alex; Lehmann, Sune

2014-01-01

155

BowTieBuilder: modeling signal transduction pathways  

Microsoft Academic Search

BACKGROUND: Sensory proteins react to changing environmental conditions by transducing signals into the cell. These signals are integrated into core proteins that activate downstream target proteins such as transcription factors (TFs). This structure is referred to as a bow tie, and allows cells to respond appropriately to complex environmental conditions. Understanding this cellular processing of information, from sensory proteins (e.g.,

Jochen Supper; Lucía Spangenberg; Hannes Planatscher; Andreas Dräger; Adrian Schröder; Andreas Zell

2009-01-01

156

People Interview: Black-tie science gets modern  

NASA Astrophysics Data System (ADS)

INTERVIEW Black-tie science gets modern Baroness Susan Greenfield CBE is director of the Royal Institution and professor of pharmacology at Oxford where she heads a multidisciplinary group studying neurodegenerative disorders. David Smith speaks to her about specialities, keeping busy and how science is changing.

2009-03-01

157

Matrilineal Family Ties and Marital Dissolution in Ghana  

ERIC Educational Resources Information Center

Although previous work has attributed the instability of African marriages to the diffusion of Western norms and values in the region, fewer attempts have been made to empirically assess how Africa's internal institutional structures, such as extended kinship ties, impact marital outcomes. Guided by rational choice and exchange theories, we argue…

Takyi, Baffour K.; Gyimah, Stephen Obeng

2007-01-01

158

Views of the Apollo 11 Twentieth Anniversary Black Tie reception  

NASA Technical Reports Server (NTRS)

Views of the Apollo 11 Twentieth Anniversary Black Tie reception at the downtown Houston Hyatt Regency Hotel. Views include former JSC Directors Robert Gilruth and Christopher C. Kraft Jr. reminiscing with keynote speaker Walter Cronkite (39934); Apollo astronauts Tom Stafford (left) and Neil Armstrong (right) talk with former Soviet cosmonaut Alexei Leonov (center) at the gala (39935).

1989-01-01

159

Obesity Tied to Higher Cancer Risk for Colon Cancer Survivors  

MedlinePLUS

... page, please enable JavaScript. Obesity Tied to Higher Cancer Risk for Colon Cancer Survivors Finding is yet another reason to maintain ... 2014) Tuesday, September 30, 2014 Related MedlinePlus Pages Cancer Colorectal Cancer Obesity TUESDAY, Sept. 30, 2014 (HealthDay ...

160

Neural Correlates of Dynamically Evolving Interpersonal Ties Predict Prosocial Behavior  

PubMed Central

There is a growing interest for the determinants of human choice behavior in social settings. Upon initial contact, investment choices in social settings can be inherently risky, as the degree to which the other person will reciprocate is unknown. Nevertheless, people have been shown to exhibit prosocial behavior even in one-shot laboratory settings where all interaction has been taken away. A logical step has been to link such behavior to trait empathy-related neurobiological networks. However, as a social interaction unfolds, the degree of uncertainty with respect to the expected payoff of choice behavior may change as a function of the interaction. Here we attempt to capture this factor. We show that the interpersonal tie one develops with another person during interaction – rather than trait empathy – motivates investment in a public good that is shared with an anonymous interaction partner. We examined how individual differences in trait empathy and interpersonal ties modulate neural responses to imposed monetary sharing. After, but not before interaction in a public good game, sharing prompted activation of neural systems associated with reward (striatum), empathy (anterior insular cortex and anterior cingulate cortex) as well as altruism, and social significance [posterior superior temporal sulcus (pSTS)]. Although these activations could be linked to both empathy and interpersonal ties, only tie-related pSTS activation predicted prosocial behavior during subsequent interaction, suggesting a neural substrate for keeping track of social relevance. PMID:22403524

Fahrenfort, Johannes J.; van Winden, Frans; Pelloux, Benjamin; Stallen, Mirre; Ridderinkhof, K. Richard

2011-01-01

161

Religion and Ties Between Adult Children and Their Parents  

PubMed Central

Objectives. This study examined whether religious adults (measured by the frequency of attendance at religious services) report more extensive ties with their parents. Method. Using data from the National Survey of Families and Households (N = 9,002), a series of bivariate and multivariate regression models were tested. Several dimensions of adult children’s relationships with their parents were considered including relationship quality, frequency of contact, providing care to parents, and providing other assistance. Results. Adult children who attended religious services more frequently were significantly more likely to provide assistance to parents, and they reported higher quality relationships and more frequent contact with both their fathers and mothers. Results were similar for sons and daughters, and for younger and older adult children. Discussion. A better understanding of what motivates and fosters strong ties between adult children and their parents is vitally important given the “graying” of America and the consequences of such ties for the health and well-being of both generations. Religion is only one of many factors associated with adult children’s ties to parents, and this association is generally modest, but it is an important factor that should be given greater attention in future research. PMID:23908411

2013-01-01

162

Children's Books in Review: Books on Strengthening Family Ties.  

ERIC Educational Resources Information Center

Reviews children's books that emphasize the strengthening of family ties. Characters in the books realize the importance and influence of family relationships as they struggle with sibling rivalry, self-discovery, peer relationships, a search for heritage, adoption, and death. (SM)

Winfield, Evelyn T.

1991-01-01

163

The Suspect Ties of CAIR Officials, Fundraisers & Trainers  

Microsoft Academic Search

A number of CAIR officials and some other individuals who have raised funds for CAIR have in some cases committed criminal acts themselves, or in other cases have ties to organizations connected to Islamic extremism. The fact that such individuals have played significant roles for CAIR casts doubt on CAIR's claims of moderation and restraint. The individuals discussed in this

Ghassan Elashi

164

Hierarchical modularity of nested bow-ties in metabolic networks  

PubMed Central

Background The exploration of the structural topology and the organizing principles of genome-based large-scale metabolic networks is essential for studying possible relations between structure and functionality of metabolic networks. Topological analysis of graph models has often been applied to study the structural characteristics of complex metabolic networks. Results In this work, metabolic networks of 75 organisms were investigated from a topological point of view. Network decomposition of three microbes (Escherichia coli, Aeropyrum pernix and Saccharomyces cerevisiae) shows that almost all of the sub-networks exhibit a highly modularized bow-tie topological pattern similar to that of the global metabolic networks. Moreover, these small bow-ties are hierarchically nested into larger ones and collectively integrated into a large metabolic network, and important features of this modularity are not observed in the random shuffled network. In addition, such a bow-tie pattern appears to be present in certain chemically isolated functional modules and spatially separated modules including carbohydrate metabolism, cytosol and mitochondrion respectively. Conclusion The highly modularized bow-tie pattern is present at different levels and scales, and in different chemical and spatial modules of metabolic networks, which is likely the result of the evolutionary process rather than a random accident. Identification and analysis of such a pattern is helpful for understanding the design principles and facilitate the modelling of metabolic networks. PMID:16916470

Zhao, Jing; Yu, Hong; Luo, Jian-Hua; Cao, Zhi-Wei; Li, Yi-Xue

2006-01-01

165

Preventing Cauliflower Ear with a Modified Tie-Through Technique.  

ERIC Educational Resources Information Center

Describes a quick, simple tie-through suture technique (in which a collodion packing is secured to the auricle with two buttons) for preventing cauliflower ear following external ear trauma in wrestlers and boxers. The technique ensures constant compression; multiple treatments for fluid reaccumulation are rarely necessary. (SM)

Dimeff, Robert J.; Hough, David O.

1989-01-01

166

Inheriting the Homeland? Intergenerational Transmission of Cross-Border Ties in Migrant Families  

E-print Network

school system would be an agent of socialization towards theagents and institutions” while the “public school is the most important and effective instrument of political socializationsocialization research whether the family or schools were the more important socializing agents.

Soehl, Thomas; Waldinger, Roger

2012-01-01

167

Leaf ties as colonization sites for forest arthropods: an experimental study  

E-print Network

- ments, with the highest densities of leaf chewers, scavengers, and predators in occupied ties-chewing insects (including leaf-tiers and non-tying inquiline species) and scavengers showed strong oviposition

Lill, John T.

168

Linkage of genomic biomarkers to whole organism endpoints in a Toxicity Identification Evaluation (TIE).  

EPA Science Inventory

Aquatic organisms are exposed to many toxic chemicals and interpreting the cause and effect relationships between occurrence and impairment is difficult. Toxicity Identification Evaluation (TIE) provides a systematic approach for identifying responsible toxicants. TIE relies on ...

169

78 FR 25303 - Prestressed Concrete Steel Rail Tie Wire From China, Mexico, and Thailand  

Federal Register 2010, 2011, 2012, 2013

...Preliminary)] Prestressed Concrete Steel Rail Tie Wire From China, Mexico, and Thailand Institution of antidumping duty investigations...from prestressed concrete steel rail tie wire from China, Mexico, and Thailand, provided for in subheading...

2013-04-30

170

78 FR 37236 - Prestressed Concrete Steel Rail Tie Wire From China, Mexico, and Thailand  

Federal Register 2010, 2011, 2012, 2013

...Concrete Steel Rail Tie Wire From China, Mexico, and Thailand Determinations...injured by reason of imports from China, Mexico, and Thailand of prestressed...concrete steel rail tie wire from China, Mexico, and Thailand....

2013-06-20

171

Investigations on concrete railway ties suffering from alkali-silica reaction  

Microsoft Academic Search

This paper investigated the railway ties affected by alkali-silica reaction in Shanghai and Zhengjiang railway stations. All these ties were produced by a plant in Beijing. The results showed that about 30% ties produced in 1980~1981 are damaged when used in the stations, while 61~85% ties manufactured in 1985–1987 were cracked now. It was found that load and wet and

Tong Liang

1997-01-01

172

The logic of tied implications, part 1: Properties, applications and representation  

Microsoft Academic Search

A conjunction T ties an implication operator A if the identity A(a, A(b, z)) = A(T (a, b), z) holds (A.A. Abdel-Hamid, N.N. Morsi, Associatively tied implications, Fuzzy Sets and Systems 136 (2003) 291-311). We study the class of tied adjointness algebras (which are five-connective algebras on two partially ordered sets), in which the implications are tied by triangular norms.

Nehad N. Morsia; W. Lotfallah

173

78 FR 57619 - Prestressed Concrete Steel Rail Tie Wire From Mexico, Thailand, and the People's Republic of...  

Federal Register 2010, 2011, 2012, 2013

...Rail Tie Wire From Mexico, Thailand, and...People's Republic of China: Postponement...rail tie wire from Mexico, Thailand, and...People's Republic of China. See Prestressed...Rail Tie Wire From Mexico, the People's Republic of China, and...

2013-09-19

174

Laptop image transmission equipment  

NASA Astrophysics Data System (ADS)

Imagery and other visual information have become a critical element in planning and performing modern military operations. The effectiveness of this imagery information is often directly tied to the time it takes to get from the collector of this imagery to the user of the imagery. Hard copy distribution of annotated imagery to the tactical commander is hampered by the lack of effective communications paths, and the tactical use of hand held imagery is restricted by the lack of film processing facilities. The military has begun to rely on electronic imagery and digital communications technology for answers, with some success. The new obstacles created by applied electronic imagery are interoperability standards and effective use of communications bandwidth in a tactical environment. New technological developments in computer hardware/software have changed this situation by allowing for the gathering, dissemination, and transfer of near-real-time information to various intelligence audiences at any location. The Naval Air Development Center (NAVAIRDEVCEN) has coupled commercial-off-the-shelf (COTS) technology with National Image Transmission Formats (NITF) Standards to develop a Secondary Imagery Dissemination System (SIDS) package that is designed to meet the flexibility challenge of the tactical military environment. This tailorable SIDS package is called Laptop Image Transmission Equipment (LITE). The LITE system is an extension of the Navy's existing Fleet Imagery Support Terminal (FIST) into the man-portable tactical environment. As such, LITE development is focused on developing flexible imagery input (from sources such as filmless cameras) and connectivity to tactical communications paths and ruggedization/miniaturization issues. The LITE system, in prototype form, has already found application through operational use in special operations, counter narcotics operations, and classic air/ground/sea military operations. This paper provides an overview of the LITE components, specifications, operations, and future developments for the system.

Mocenter, Michael M.

1991-12-01

175

It's the recipient that counts: spending money on strong social ties leads to greater happiness than spending on weak social ties.  

PubMed

Previous research has shown that spending money on others (prosocial spending) increases happiness. But, do the happiness gains depend on who the money is spent on? Sociologists have distinguished between strong ties with close friends and family and weak ties--relationships characterized by less frequent contact, lower emotional intensity, and limited intimacy. We randomly assigned participants to reflect on a time when they spent money on either a strong social tie or a weak social tie. Participants reported higher levels of positive affect after recalling a time they spent on a strong tie versus a weak tie. The level of intimacy in the relationship was more important than the type of relationship; there was no significant difference in positive affect after recalling spending money on a family member instead of a friend. These results add to the growing literature examining the factors that moderate the link between prosocial behaviour and happiness. PMID:21347326

Aknin, Lara B; Sandstrom, Gillian M; Dunn, Elizabeth W; Norton, Michael I

2011-01-01

176

Application of the InGaAs-based bow-tie diodes for terahertz imaging  

Microsoft Academic Search

Bow-tie InGaAs diode with broken symmetry has been designed as fast detector of THz frequency operating at room temperature. Scanning THz imaging system with the bow-tie diode is considered and compared with similar imaging schemes. Suitability of bow-tie diodes for real-time THz imaging is also discussed.

D. Seliuta; I. Kas?alynas; V. Tamos?iunas; R. Simnis?kis; G. Valus?is

2010-01-01

177

An Empirical Study of the Stable Marriage Problem with Ties and Incomplete Lists  

E-print Network

An Empirical Study of the Stable Marriage Problem with Ties and Incomplete Lists Ian Philip Gent marriage problem with ties and incomplete lists. We do this in the form of a constraint programming preference lists contain ties and are incomplete (SMTI) the problem of determining if there is a stable

St Andrews, University of

178

APS/EK10599 Weak Ties: Subtle Role of Information Diffusion in Online Social Networks  

E-print Network

APS/EK10599 Weak Ties: Subtle Role of Information Diffusion in Online Social Networks Jichang Zhao the structure is coupled with the diffusion in online social networks from the view of weak ties. Through research results, selecting weak ties preferentially to republish cannot make the information diffuse

Xu, Ke

179

MIKKEL THORUP & MATTHEW ROUGHAN 1 Avoiding Ties in Shortest Path First Routing  

E-print Network

MIKKEL THORUP & MATTHEW ROUGHAN 1 Avoiding Ties in Shortest Path First Routing Mikkel Thorup,roughan)@research.att.com Abstract---First we discuss problems associated with ties and flow splitting with shortest path first ties and yet minimize conges­ tion. On real and synthetic networks we demonstrate experimentally

Roughan, Matthew

180

Automatic Tie-Point Generation for Oblique Aerial Imagery: An Algorithm  

E-print Network

Automatic Tie-Point Generation for Oblique Aerial Imagery: An Algorithm Seth Weith-Glushko A senior, 2004 #12;Abstract Tie points are pixels that describe the geographic position of the same information tie-points are computationally inefficient and prone to error. Moreover, the methods are best suited

Salvaggio, Carl

181

33 CFR 401.37 - Mooring at tie-up walls.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 2013-07-01 false Mooring at tie-up walls. 401.37 Section 401...Seaway Navigation § 401.37 Mooring at tie-up walls. (a) Upon arrival at a...instructions to advance shall moor at the tie-up wall, close up to the...

2013-07-01

182

On the Strength of Weak Ties in Mobile Social Networks Stratis Ioannidis  

E-print Network

On the Strength of Weak Ties in Mobile Social Networks Stratis Ioannidis Thomson, Paris stratis.ioannidis@thomson.net Augustin Chaintreau Thomson, Paris augustin.chaintreau@thomson.net ABSTRACT Weak ties, introduced their social cirle (i.e., acquaintances with which they interact infrequently). We show that weak ties play

183

A Study of the E#ect of Ties in the kmodes Algorithm for Categorical data  

E-print Network

A Study of the E#ect of Ties in the k­modes Algorithm for Categorical data R. E. Funderlic, M. T Science April 28, 2004 Abstract Categorical data can easily have ties. This paper identifies two types of ties and studies their e#ect on the k­modes methods for categorical data. Three commonly used variants

184

Modified Printed Bow-Tie Antenna For C And X Bands Wideband Phased Array Systems  

E-print Network

Modified Printed Bow-Tie Antenna For C And X Bands Wideband Phased Array Systems Abdelnasser A, The University of Mississippi University, MS 38677, USA This paper presents a modified printed bow-tie antenna are the quasi-Yagi antenna [2-4], dipole antenna [5-9], and printed bow- tie antenna [9-12]. The quasi

Elsherbeni, Atef Z.

185

46 CFR 112.05-3 - Main-emergency bus-tie.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Main-emergency bus-tie. 112.05-3 Section 112.05-3 Shipping ...SYSTEMS General § 112.05-3 Main-emergency bus-tie. Each bus-tie between a main switchboard and an emergency...

2011-10-01

186

10 CFR 71.45 - Lifting and tie-down standards for all packages.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 2013-01-01 false Lifting and tie-down standards for all packages. 71...Approval Standards § 71.45 Lifting and tie-down standards for all packages...required for lifting attachments. (b) Tie-down devices: (1) If there is a...

2013-01-01

187

10 CFR 71.45 - Lifting and tie-down standards for all packages.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 2011-01-01 false Lifting and tie-down standards for all packages. 71...Approval Standards § 71.45 Lifting and tie-down standards for all packages...required for lifting attachments. (b) Tie-down devices: (1) If there is a...

2011-01-01

188

On Facebook, Most Ties are Weak The emergence of pervasive socio-technical networks brings new  

E-print Network

On Facebook, Most Ties are Weak Abstract The emergence of pervasive socio-technical networks brings of weak ties theory proposed by Mark Granovetter. Some authors recently investigated whether Granovetter to predict tie strength. Those approaches require to handle user-generated data that are often not publicly

Ferrara, Emilio

189

Analysis of Bow Tie Array RFID Tag Antenna for Paper Reel Identification Leena Ukkonen*(1)  

E-print Network

Analysis of Bow Tie Array RFID Tag Antenna for Paper Reel Identification Systems Leena Ukkonen*(1 of using broadband bow tie tag antennas in paper reel identification have been achieved recently [4]. However, a single bow tie tag antenna does not have sufficient read range performance when read through

Elsherbeni, Atef Z.

190

Inferring Social Ties in Academic Networks Using Short-Range Wireless Communications  

E-print Network

Inferring Social Ties in Academic Networks Using Short-Range Wireless Communications Igor ties of users from their location and co-location traces but they lack one important component publicly. Users' social ties are no exception either, as several stud- ies on ubiquitous computing have

Paris-Sud XI, Université de

191

Tie Breaking in Clause Weighting Local Search Valnir Ferreira Jr. and John Thornton  

E-print Network

Tie Breaking in Clause Weighting Local Search for SAT Valnir Ferreira Jr. and John Thornton or additively. Tie breaking strategies are used whenever a method's evaluation function encounters more than one optimal candidate flip, with the dominant approach being to break such ties randomly. Although

Thornton, John

192

Approximations of the critical region for spearman’s rho with and without ties present  

Microsoft Academic Search

Exact tables for Spearman’s rho are available only for n ? 16 and no ties in the data. Some accurate methods of approximating the distribution with no ties present have been used to obtain approximate tables for larger values of n. Often ties are present in the data so these tables are no longer exact. Also sometimes the tables are

Ronald L. Iman; W. J. Conover

1978-01-01

193

Chesapeake Bay Land Margin Ecosystem Research (LMER): Trophic Interactions in Estuarine Systems (TIES)  

E-print Network

(TIES) Primary Investigator: Stephen B. Brandt This project was completed in 2001 Overview Estuaries patches. 2001 Accomplishments In FY2001 we collaborated with other TIES researchers to compile and analyze of Marine Life program. The TIES program was completed at the end of 2001. 2000 Accomplishments Acoustic

194

An Empirical Study of the Stable Marriage Problem with Ties and Incomplete Lists 1  

E-print Network

An Empirical Study of the Stable Marriage Problem with Ties and Incomplete Lists 1 Ian Philip Gent, the stable marriage problem with ties and incomplete lists. We do this in the form of a constraint preference lists contain ties and are incomplete (SMTI) the problem of determining if there is a stable

St Andrews, University of

195

Ties for the integral group ring of the symmetric group Matthias Kunzer  

E-print Network

Ties for the integral group ring of the symmetric group Matthias KË?unzer #12; ii #12; Contents 0.1.1 The tie matrix and the total index . . . . . . . . . . . . . . . . . . 1 1.1.2 Total index, more general . . . . . . . . . . . . . . . . 4 1.1.4 Ties for the center . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1

Kuenzer, Matthias

196

33 CFR 401.37 - Mooring at tie-up walls.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 false Mooring at tie-up walls. 401.37 Section 401...Seaway Navigation § 401.37 Mooring at tie-up walls. (a) Upon arrival at a...instructions to advance shall moor at the tie-up wall, close up to the...

2010-07-01

197

Tie-set Based Fault Tolerance for Autonomous Recovery of Double-Link Failures  

E-print Network

Tie-set Based Fault Tolerance for Autonomous Recovery of Double-Link Failures Kiyoshi Nakayama a mechanism for coping with double-link failures in an autonomous and distributed manner. We call it Tie-set Based Fault Tolerance (TBFT) be- cause it utilizes tie-sets, which represent a set of the edges

Venkatasubramanian, Nalini

198

The Effects of De-energizing Ties in Organizations andHow to Manage Them  

E-print Network

The Effects of De-energizing Ties in Organizations andHow to Manage Them ANDREW PARKER Grenoble of negative or de-energizing ties, defined as enduring, recurring set of negative judgments, feelings, and behavioral intentions towards another person. While de-energizing ties may represent a relatively small

Paris-Sud XI, Université de

199

33 CFR 401.37 - Mooring at tie-up walls.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 2011-07-01 false Mooring at tie-up walls. 401.37 Section 401...Seaway Navigation § 401.37 Mooring at tie-up walls. (a) Upon arrival at a...instructions to advance shall moor at the tie-up wall, close up to the...

2011-07-01

200

46 CFR 112.05-3 - Main-emergency bus-tie.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 2010-10-01 false Main-emergency bus-tie. 112.05-3 Section 112.05-3 Shipping ...SYSTEMS General § 112.05-3 Main-emergency bus-tie. Each bus-tie between a main switchboard and an emergency...

2010-10-01

201

Maintaining Ties on Social Media Sites: The Competing Effects of Balance, Exchange, and Betweenness  

E-print Network

Maintaining Ties on Social Media Sites: The Competing Effects of Balance, Exchange, and Betweenness with a common methodological problem in studying ties on social media sites: the tremendous volatil- ity of these ties over time makes it hard to compare one's results to simple baselines that assume static or stable

Kleinberg, Jon

202

Structure, Tie Persistence and Event Detection in Large Phone and SMS Networks  

E-print Network

Structure, Tie Persistence and Event Detection in Large Phone and SMS Networks Leman Akoglu, etc. influence the tie strengths and link persistence between individuals. In this paper we study the tie strengths and the local net- work structure of users. They also analyzed the information diffusion

203

MIKKEL THORUP & MATTHEW ROUGHAN 1 Avoiding Ties in Shortest Path First Routing  

E-print Network

MIKKEL THORUP & MATTHEW ROUGHAN 1 Avoiding Ties in Shortest Path First Routing Mikkel Thorup,roughan)@research.att.com Abstract--First we discuss problems associated with ties and flow splitting with shortest path first ties and yet minimize conges- tion. On real and synthetic networks we demonstrate experimentally

Roughan, Matthew

204

Stepfamily Formation: Implications for Adolescent Ties to Mothers, Nonresident Fathers, and Stepfathers  

ERIC Educational Resources Information Center

This study examines how the entrance of a stepfather influences adolescent ties to mothers and nonresident fathers and how prior ties to each biological parent influence the development of stepfather-stepchild ties. Data come from 1,753 adolescents in the National Longitudinal Study of Adolescent Health who lived with a single mother in Wave 1 who…

King, Valarie

2009-01-01

205

Ties for the integral group ring of the symmetric group Matthias Kunzer  

E-print Network

Ties for the integral group ring of the symmetric group Matthias K¨unzer #12;ii #12;Contents 0.1.1 The tie matrix and the total index . . . . . . . . . . . . . . . . . . 1 1.1.2 Total index, more general . . . . . . . . . . . . . . . . 4 1.1.4 Ties for the center . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1

Künzer, Matthias

206

TIE: An Interactive Visualization of Thread Interleavings Gowritharan Maheswara, Jeremy S. Bradbury, Christopher Collins  

E-print Network

TIE: An Interactive Visualization of Thread Interleavings Gowritharan Maheswara, Jeremy S. Bradbury error states. In this pa- per, we present an interactive visualization tool, TIE, that integrates the Thread Interleaving Explorer (TIE), an interactive visualization tool to help software de- velopers debug

Bradbury, Jeremy S.

207

10 CFR 71.45 - Lifting and tie-down standards for all packages.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 2012-01-01 false Lifting and tie-down standards for all packages. 71...Approval Standards § 71.45 Lifting and tie-down standards for all packages...required for lifting attachments. (b) Tie-down devices: (1) If there is a...

2012-01-01

208

46 CFR 112.05-3 - Main-emergency bus-tie.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Main-emergency bus-tie. 112.05-3 Section 112.05-3 Shipping ...SYSTEMS General § 112.05-3 Main-emergency bus-tie. Each bus-tie between a main switchboard and an emergency...

2013-10-01

209

Meet the TIE Faculty: Short version with music Transcript revised, 12/23/10  

E-print Network

Meet the TIE Faculty: Short version with music Transcript revised, 12/23/10 Welcome, faculty director of TIE. I'd like to introduce you some of my faculty colleagues, and the research was created by Dave Perkins, and TIE faculty colleague Stone Wiske. Stone, the co-director of Wide World

210

On the Strength of Weak Ties in Mobile Social Networks Stratis Ioannidis Augustin Chaintreau  

E-print Network

On the Strength of Weak Ties in Mobile Social Networks Stratis Ioannidis Augustin Chaintreau Thomson, Paris email: firstname.lastname@thomson.net ABSTRACT We study the importance of weak ties a mobile social network. Our results show that weak ties can be used to design strategies for limiting

Chaintreau, Augustin

211

33 CFR 401.37 - Mooring at tie-up walls.  

...2014-07-01 2014-07-01 false Mooring at tie-up walls. 401.37 Section 401...Seaway Navigation § 401.37 Mooring at tie-up walls. (a) Upon arrival at a...instructions to advance shall moor at the tie-up wall, close up to the...

2014-07-01

212

Tied dice (n = 4 addendum) Brian G. Kronenthal and Lorenzo Traldi  

E-print Network

Tied dice (n = 4 addendum) Brian G. Kronenthal and Lorenzo Traldi Department of Mathematics Lafayette College, Easton, PA 18042 Abstract We present a very tedious proof of the n = 4 case of the Tied Dice Theorem. Suppose X = (x1; x2; x3; x4); Y = (y1; y2; y3; y4) 2 D(4; a; b; s) are distinct, tied

Traldi, Lorenzo

213

46 CFR 112.05-3 - Main-emergency bus-tie.  

...2014-10-01 2014-10-01 false Main-emergency bus-tie. 112.05-3 Section 112.05-3 Shipping ...SYSTEMS General § 112.05-3 Main-emergency bus-tie. Each bus-tie between a main switchboard and an emergency...

2014-10-01

214

Who Can You Turn to? Tie Activation within Core Business Discussion Networks  

ERIC Educational Resources Information Center

We examine the connection between personal network characteristics and the activation of ties for access to resources during routine times. We focus on factors affecting business owners' use of their core network ties to obtain legal, loan, financial and expert advice. Owners rely more on core business ties when their core networks contain a high…

Renzulli, Linda A.; Aldrich, Howard

2005-01-01

215

33 CFR 401.37 - Mooring at tie-up walls.  

Code of Federal Regulations, 2012 CFR

...2012-07-01 2012-07-01 false Mooring at tie-up walls. 401.37 Section 401...Seaway Navigation § 401.37 Mooring at tie-up walls. (a) Upon arrival at a...instructions to advance shall moor at the tie-up wall, close up to the...

2012-07-01

216

Ties that Blind: Perpetuation of Racial Comfort and Discomfort at a Community College  

ERIC Educational Resources Information Center

Interviews with 17 African American students and 19 White students were employed to examine interracial relations at a predominantly White community college campus. Seen through the lens of Granovetter's strength of ties theory, the interview findings revealed that strong intraracial ties and the absence of weak interracial ties inhibited…

Price, Douglas B.; Hyle, Adrienne E.; Jordan, Kitty V.

2009-01-01

217

46 CFR 112.05-3 - Main-emergency bus-tie.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false Main-emergency bus-tie. 112.05-3 Section 112.05-3 Shipping ...SYSTEMS General § 112.05-3 Main-emergency bus-tie. Each bus-tie between a main switchboard and an emergency...

2012-10-01

218

The Length of Bridge Ties: Structural and Geographic Properties of Online Social Interactions  

E-print Network

The Length of Bridge Ties: Structural and Geographic Properties of Online Social Interactions Yana on a global scale: people connect both to close friends and acquaintances, creating ties that can bridge social links established on online platforms, with online ties prefer- entially connecting closer people

Mascolo, Cecilia

219

Proceedings Article Complex Contagion and the Weakness of Long Ties in Social Networks  

E-print Network

Proceedings Article Complex Contagion and the Weakness of Long Ties in Social Networks: Revisited network diameter and the existence of weak ties in the network play important roles. Recent studies to simple contagions, weak ties are not as effective in spreading complex contagions due to the lack

Gao, Jie

220

Cumulant Generating Function and Tail Probability Approximations for Kendall's Score with Tied Rankings  

E-print Network

Cumulant Generating Function and Tail Probability Approximations for Kendall's Score with Tied generating function of Kendall's score, Hypergeometric distribution, Kendall's rank correlation with ties distribution of Kendall's S statistic, when one ranking is tied, is extended to the general case where both

McLeod, Ian

221

Social Ties and their Relevance to Churn in Mobile Telecom Networks  

E-print Network

Social Ties and their Relevance to Churn in Mobile Telecom Networks Koustuv Dasgupta, Rahul Singh their ties (relationships) with other individuals in the network. Exploring the nature and strength of these ties can help understand the structure and dynamics of social networks and explain real-world phenomena

Shenoy, Prashant

222

10 CFR 71.45 - Lifting and tie-down standards for all packages.  

...2014-01-01 2014-01-01 false Lifting and tie-down standards for all packages. 71...Approval Standards § 71.45 Lifting and tie-down standards for all packages...required for lifting attachments. (b) Tie-down devices: (1) If there is a...

2014-01-01

223

Who Can Cultivate University Ties More in China? A Local Firm or a Foreign Firm?  

Microsoft Academic Search

University ties are an important innovation resource for both foreign direct investment (FDI) firms and local firms. Since these university connections involve local personal ties, which are established through long-term efforts that require social and cul- tural embeddedness, it is probably more difficult for FDI firms to establish such ties than it is for local firms. However, FDI firms, which

Kai Xu; Kuo-Feng Huang; Shanxing Gao

2011-01-01

224

Interplay of network dynamics and ties heterogeneity on spreading dynamics  

E-print Network

The structure of a network dramatically affects the spreading phenomena unfolding upon it. The contact distribution of the nodes has long been recognized as the key ingredient in influencing the outbreak events. However, limited knowledge is currently available on the role of the weight of the edges on the persistence of a pathogen. At the same time, recent works showed a strong influence of temporal network dynamics on disease spreading. In this work we provide an analytical understanding, corroborated by numerical simulations, about the conditions for infected stable state in weighted networks. In particular, we reveal the role of heterogeneity of edge weights and of the dynamic assignment of weights on the ties in the network in driving the spread of the epidemic. In this context we show that when weights are dynamically assigned to ties in the network an heterogeneous distribution is able to hamper the diffusion of the disease, contrary to what happens when weights are fixed in time.

Ferreri, Luca; Giacobini, Mario; Perazzo, Silvia; Venturino, Ezio

2014-01-01

225

Fast MHD oscillations in line-tied homogeneous coronal loops  

NASA Astrophysics Data System (ADS)

Loop oscillations have been abundantly reported in recent years. Earlier analytical studies of loop oscillations consider freely propagating waves, allowing for line-tying by a quantization of the wavenumber. Here we consider the rich spectrum of fast MHD modes (both standing and leaky) in coronal loops, allowing for line-tying and performing some comparisons with observational data. We point out that in a straight and homogeneous cylindrical flux tube there should be observational signatures of the excitation of higher order harmonics. Our results indicate that these modes become leaky with the addition of the chromospheric structure at the base of the loop. Leakage can be quite efficient in damping the oscillations for many of these high frequency (compared to fundamental) modes. Appendix A is only available in electronic form at http://www.edpsciences.org

Díaz, A. J.; Oliver, R.; Ballester, J. L.; Roberts, B.

2004-09-01

226

The tie-zone watershed: definition, algorithm and applications  

Microsoft Academic Search

In this work, a new type of watershed transform is intro- duced: the Tie-Zone WaterShed (TZWS). This region-based watershed transform does not depend on arbitrary imple- mentation and provides a unique and optimal solution. Indeed, many solutions are sometimes possible when seg- menting an image with a watershed algorithm. In this case, the TZWS assigns each pixel to a catchment

Romaric Audigier; Roberto De Alencar Lotufo; Michel Couprie

2005-01-01

227

Determination of the inner planet frame tie using VLBI data  

NASA Technical Reports Server (NTRS)

The problem of connecting the independent reference frames formed by the planetary ephemeris and the radio source catalog is one of growing importance to spacecraft navigation. Using quasar-relative VLBI delay data collected by the Deep Space Network, and Soviet coherent data from the Venus flyby of the Soviet Vega 1 and 2 spacecraft, a self-consistent estimate of the frame tie offset has been found, along with its uncertainty.

Mcelrath, Timothy P.; Bhat, Ramachandra S.

1988-01-01

228

The HTK tied-state continuous speech recogniser  

Microsoft Academic Search

HTK is a portable software toolkit for developing systemsusing continuous density hidden Markov modelsdeveloped by the Cambridge University Speech Group.This paper describes speech recognition experimentsusing HTK based systems for the DARPA ResourceManagement (RM) task. In particular good performanceis obtained using a tied-state triphone basedmultiple mixture approach. This system was used inthe final DARPA RM evaluation (September 1992) andwas found to

Philip C. Woodland; Steve J. Young

1993-01-01

229

A new phonetic tied-mixture model for efficient decoding  

Microsoft Academic Search

A phonetic tied-mixture (PTM) model for efficient large vocabulary continuous speech recognition is presented. It is synthesized from context-independent phone models with 64 mixture components per state by assigning different mixture weights according to the shared states of triphones. Mixtures are then re-estimated for optimization. The model achieves a word error rate of 7.0% with a 20000-word dictation of newspaper

Akinobu Lee; Tatsuya Kawahara; Kazuya Takeda; Kiyohiro Shikano

2000-01-01

230

A NEW PHONETIC TIED-MIXTURE MODEL FOR EFFICIENT DECODING  

Microsoft Academic Search

A phonetic tied-mixture (PTM) model for efficient large vo- cabulary continuous speech recognition is presented. It is synthesized from context-independent phone models with 64 mixture components per state by assigning different mix- ture weights according to the shared states of triphones. Mixtures are then re-estimated for optimization. The model achieves a word error rate of 7.0% at 20k-word dictation of

Akinobu Lee; T. Kawahara K. Takeda; K. Shikano

2000-01-01

231

Tree-based state tying for high accuracy acoustic modelling  

Microsoft Academic Search

The key problem to be faced when building a HMM-based continuous speech recogniser is maintaining the balance between model complexity and available training data. For large vocabulary systems requiring cross-word context dependent modelling, this is particularly acute since many such contexts will never occur in the training data. This paper describes a method of creating a tied-state continuous speech recognition

S. J. Young; J. J. Odell; P. C. Woodland

1994-01-01

232

Networking Through Loose and Strong Ties: An Australian Qualitative Study  

Microsoft Academic Search

Given the significant role attributed to community organizations by many social capital scholars, it is appropriate to investigate the dynamics of that process. In particular, Woolcock and Narayan (World Bank Res. Obs.15(2): 225–249, 2000) have suggested that bridging and bonding are two different types of connections, whereby bridging is associated with loose ties across communities and bonding is associated with

Rosemary Leonard; Jenny Onyx

2003-01-01

233

Suicide: the key role of short range ties  

E-print Network

The paper explores the connection between short-range social ties (i.e. links with close relatives) and the occurrence of suicide. The objective is to discriminate between a model based on social ties and a model based on psychological traumas. Our methodological strategy is to focus on instances characterized by the severance of some social ties. We consider several situations of this kind. (i) Prisoners in the first days after their incarceration. (ii) Prisoners in solitary confinement. (iii) Prisoners who are transferred from one prison to another. (iv) Prisoners in closed versus open prisons. (v) Prisoners in the weeks following their release. (vi) Immigrants in the years following their relocation. (vii) Unmarried versus married people. Furthermore, in order to test the impact of major shocks we consider the responses in terms of suicides to the following shocks. (i) The attack of September 11, 2001 in Manhattan. (ii) The Korean War. (iii) The two world wars. (iv) The Great Depression in the United State...

Röhner, B M

2005-01-01

234

Rotorcraft transmissions  

NASA Technical Reports Server (NTRS)

Highlighted here is that portion of the Lewis Research Center's helicopter propulsion systems program that deals with drive train technology and the related mechanical components. The major goals of the program are to increase life, reliability, and maintainability, to reduce weight, noise, and vibration, and to maintain the relatively high mechanical efficiency of the gear train. The current activity emphasizes noise reduction technology and analytical code development, followed by experimental verification. Selected significant advances in technology for transmissions are reviewed, including advanced configurations and new analytical tools. Finally, the plan for transmission research in the future is presented.

Coy, John J.

1990-01-01

235

Database: Scientists & Non-Profits' Ties to Industry  

NSDL National Science Digital Library

The Integrity in Science project of the Center for Science in the Public Interest has developed a database of scientists and nonprofit organizations with ties to industry. Data is provided "mostly in the fields of nutrition, environment, toxicology and medicine." Searches can be performed by categories, such as name, topic, or university. A brief description of the type of corporate support, along with reference, is given for each listed researcher and organization. This list is intended only as public awareness. It is not a comprehensive list, and inclusion does not imply improper or unethical behavior.

2002-01-01

236

Loss of Arctic sea ice tied to natural climate variability  

NASA Astrophysics Data System (ADS)

The Atlantic Multidecadal Oscillation (AMO) is a semiperiodic 60- to 90-year natural cycle in sea surface temperatures of the North Atlantic—consisting of warm and cold periods—with a pronounced influence on climate in the region. Observational evidence and paleoclimate data show that AMO has occurred semiregularly for centuries, even millennia. Recent studies suggest that the unprecedented loss of Arctic sea ice seen in recent years is tied to the warm phase of this natural fluctuation of sea surface temperatures that began in the 1990s.

Wendel, JoAnna

2014-04-01

237

Tie2 in Tumor Endothelial Signaling and Survival: Implications for Antiangiogenic Therapy  

PubMed Central

Signaling through the Tie2 receptor on endothelial cells has been shown to play an important role in normal and pathologic vascular development. We generated K1735 murine melanoma tumor cells that inducibly express soluble Tie2 receptor (Tie2Ex) to study the effects of inhibiting Tie2 signaling on tumor vasculature. Tie2Ex induction rapidly decreased AKT activation but not extracellular signal-regulated kinase (ERK) activation in tumor endothelial cells as detected by immunostaining. This was accompanied by an increase in endothelial cell TUNEL staining but no change in Ki-67 expression. Together with a decrease in the percentage of perfused vessels, this suggested that tumor vessel regression and impaired vascular function rather than angiogenesis inhibition was responsible for the delay in tumor growth following Tie2Ex treatment. However, Tie2Ex failed to inhibit the growth of larger, more established K1735 tumors. These tumors were additionally treated with sorafenib, a multikinase inhibitor that inhibits tumor endothelial cell ERK activation but not AKT activation. Combining Tie2Ex and sorafenib decreased both endothelial cell AKT and ERK activation, decreased endothelial cell survival and proliferation, and significantly inhibited growth of the more established tumors. These studies indicate that activity of specific signaling pathways and prosurvival effects are brought about by Tie2 activation in tumor endothelial cells, and knowledge of the effects of Tie2 inhibition can lead to development of more effective therapeutic regimens for inhibiting tumor neovascularization. PMID:19276184

Tsai, Jeff H.; Lee, William M.F.

2010-01-01

238

Diversity of social ties in scientific collaboration networks  

NASA Astrophysics Data System (ADS)

Diversity is one of the important perspectives to characterize behaviors of individuals in social networks. It is intuitively believed that diversity of social ties accounts for competition advantage and idea innovation. However, quantitative evidences in a real large social network can be rarely found in the previous research. Thanks to the availability of scientific publication records on WWW; now we can construct a large scientific collaboration network, which provides us a chance to gain insight into the diversity of relationships in a real social network through statistical analysis. In this article, we dedicate our efforts to perform empirical analysis on a scientific collaboration network extracted from DBLP, an online bibliographic database in computer science, in a systematical way, finding the following: distributions of diversity indices tend to decay in an exponential or Gaussian way; diversity indices are not trivially correlated to existing vertex importance measures; authors of diverse social ties tend to connect to each other and these authors are generally more competitive than others.

Shi, Quan; Xu, Bo; Xu, Xiaomin; Xiao, Yanghua; Wang, Wei; Wang, Hengshan

2011-11-01

239

Multi-area economic dispatch with tie line constraints  

SciTech Connect

This paper presents a new method for solving the Multi-Area Economic Dispatch (MAED) problem with tie line constraints. This formulation extends the traditional economic dispatch methods used in study applications such as Unit Commitment to include area demand constraints, area reserve constraints, and tie line capacity constraints between the modeled areas. The MAED is formulated as a capacitated non-linear network flow problem which is solved using a high-speed network-flow code. The MAED determines the amount of power that can be economically generated in one area and transferred to another area to displace generation in the second area. The network flow model does not compute the actual power transfer between areas. The paper demonstrates that a significant number of the problem constraints may be formulated as network-type, and as a result, the method provides a robust, high-speed solution method for a surprisingly large class of utility problems including the ability to analyze potential purchases and sales in a multi-area environment.

Streiffert, D. [ESCA Corp., Bellevue, WA (United States)] [ESCA Corp., Bellevue, WA (United States)

1995-11-01

240

[Cable ties used as tool in homicide: relevance of the DNA analysis].  

PubMed

An investigation of strangulation tools often reveals DNA of the victim. In some cases, DNA of the suspect can also be demonstrated, even in strangulation tools with a smooth surface like cables. The authors report a case of strangulation of two victims with cable ties. In addition, several used and unused cable ties were found at the crime scene. The DNA analysis detected DNA of the victims, but also genomic and mitochondrial DNA of various other persons not knowingly involved in the crime. Experiments with unused cable ties revealed that even a single handling of a cable tie may leave DNA traces. An enquiry of the companies selling cable ties showed that the cable ties are manually handled, so that foreign DNA must always be expected. PMID:17380941

Poetsch, Micaela; Klaus-Peter, Philipp; Lignitz, Eberhard

2007-01-01

241

The design and application of a Transportable Inference Engine (TIE1)  

NASA Technical Reports Server (NTRS)

A Transportable Inference Engine (TIE1) system has been developed by the author as part of the Interactive Experimenter Planning System (IEPS) task which is involved with developing expert systems in support of the Spacecraft Control Programs Branch at Goddard Space Flight Center in Greenbelt, Maryland. Unlike traditional inference engines, TIE1 is written in the C programming language. In the TIE1 system, knowledge is represented by a hierarchical network of objects which have rule frames. The TIE1 search algorithm uses a set of strategies, including backward chaining, to obtain the values of goals. The application of TIE1 to a spacecraft scheduling problem is described. This application involves the development of a strategies interpreter which uses TIE1 to do constraint checking.

Mclean, David R.

1986-01-01

242

Antiangiogenic Gene Therapy Targeting the Endothelium-Specific Receptor Tyrosine Kinase Tie2  

Microsoft Academic Search

Angiogenesis is required for tumor growth and metastasis, and inhibition of angiogenesis is a promising approach for anticancer therapy. Tie2 (a.k.a Tek) is an endothelium-specific receptor tyrosine kinase known to play a role in tumor angiogenesis. To explore the therapeutic potential of blocking the Tie2 pathway, an adenoviral vector was constructed to deliver a recombinant, soluble Tie2 receptor (AdExTek) capable

Pengnian Lin; Jake A. Buxton; Ann Acheson; Czeslaw Radziejewski; Peter C. Maisonpierre; George D. Yancopoulos; Keith M. Channon; Laura P. Hale; Mark W. Dewhirst; Samuel E. George; Kevin G. Peters

1998-01-01

243

Angiopoietin-2 differentially regulates angiogenesis through TIE2 and integrin signaling  

PubMed Central

Angiopoietin-2 (ANG-2) is a key regulator of angiogenesis that exerts context-dependent effects on ECs. ANG-2 binds the endothelial-specific receptor tyrosine kinase 2 (TIE2) and acts as a negative regulator of ANG-1/TIE2 signaling during angiogenesis, thereby controlling the responsiveness of ECs to exogenous cytokines. Recent data from tumors indicate that under certain conditions ANG-2 can also promote angiogenesis. However, the molecular mechanisms of dual ANG-2 functions are poorly understood. Here, we identify a model for the opposing roles of ANG-2 in angiogenesis. We found that angiogenesis-activated endothelium harbored a subpopulation of TIE2-negative ECs (TIE2lo). TIE2 expression was downregulated in angiogenic ECs, which abundantly expressed several integrins. ANG-2 bound to these integrins in TIE2lo ECs, subsequently inducing, in a TIE2-independent manner, phosphorylation of the integrin adaptor protein FAK, resulting in RAC1 activation, migration, and sprouting angiogenesis. Correspondingly, in vivo ANG-2 blockade interfered with integrin signaling and inhibited FAK phosphorylation and sprouting angiogenesis of TIE2lo ECs. These data establish a contextual model whereby differential TIE2 and integrin expression, binding, and activation control the role of ANG-2 in angiogenesis. The results of this study have immediate translational implications for the therapeutic exploitation of angiopoietin signaling. PMID:22585576

Felcht, Moritz; Luck, Robert; Schering, Alexander; Seidel, Philipp; Srivastava, Kshitij; Hu, Junhao; Bartol, Arne; Kienast, Yvonne; Vettel, Christiane; Loos, Elias K.; Kutschera, Simone; Bartels, Susanne; Appak, Sila; Besemfelder, Eva; Terhardt, Dorothee; Chavakis, Emmanouil; Wieland, Thomas; Klein, Christian; Thomas, Markus; Uemura, Akiyoshi; Goerdt, Sergij; Augustin, Hellmut G.

2012-01-01

244

The Importance of Local Surveys for Tying Techniques Together  

NASA Technical Reports Server (NTRS)

The synergistic benefits of combining observations from multiple space geodesy techniques located at a site are a main reason behind the proposal for the establishment of the International Space Geodetic and Gravimetric Network (ISGN). However, the full benefits of inter-comparison are only realized when the spatial relationships between the different space geodetic systems are accurately determined. These spatial relationships are best determined and documented by developing a local reference network of stable ground monuments and conducting periodic surveys to tie together the reference points (for example: the intersection of rotation axes of a VLBI antenna) of the space geodetic systems and the ground monument network. The data obtained from local surveys is vital to helping understand any systematic errors within an individual technique and to helping identify any local movement or deformation of the space geodetic systems over time.

Long, James L.; Bosworth, John M.

2000-01-01

245

Tying bulk watershed properties to mountain river channel evolution  

NASA Astrophysics Data System (ADS)

Rivers evolve over tens to thousands of years, winding and drifting and branching from single channels to braided, complex flows. Understanding exactly how and why rivers change course is a complex problem that depends on the erosion of the landscape and incorporates a range of variables, from local environmental conditions, such as the precipitation rate, to the topography, water chemistry, and properties of the rocks in the watershed. At smaller scales, channel evolution depends on the physical properties of, and interactions between, individual grains of sediment. Correlating across this entire range of scales is incredibly difficult, but using a set of comparable observations from 83 watersheds in the U.S. Rocky Mountains, Mueller and Pitlick tie climatic, topographic, and geologic features to sediment processes and river evolution.

Schultz, Colin

2013-12-01

246

Tying Dark Matter to Baryons with Self-Interactions  

NASA Astrophysics Data System (ADS)

Self-interacting dark matter (SIDM) models have been proposed to solve the small-scale issues with the collisionless cold dark matter paradigm. We derive equilibrium solutions in these SIDM models for the dark matter halo density profile including the gravitational potential of both baryons and dark matter. Self-interactions drive dark matter to be isothermal and this ties the core sizes and shapes of dark matter halos to the spatial distribution of the stars, a radical departure from previous expectations and from cold dark matter predictions. Compared to predictions of SIDM-only simulations, the core sizes are smaller and the core densities are higher, with the largest effects in baryon-dominated galaxies. As an example, we find a core size around 0.3 kpc for dark matter in the Milky Way, more than an order of magnitude smaller than the core size from SIDM-only simulations, which has important implications for indirect searches of SIDM candidates.

Kaplinghat, Manoj; Keeley, Ryan E.; Linden, Tim; Yu, Hai-Bo

2014-07-01

247

Software for Verifying Image-Correlation Tie Points  

NASA Technical Reports Server (NTRS)

A computer program enables assessment of the quality of tie points in the image-correlation processes of the software described in the immediately preceding article. Tie points are computed in mappings between corresponding pixels in the left and right images of a stereoscopic pair. The mappings are sometimes not perfect because image data can be noisy and parallax can cause some points to appear in one image but not the other. The present computer program relies on the availability of a left- right correlation map in addition to the usual right left correlation map. The additional map must be generated, which doubles the processing time. Such increased time can now be afforded in the data-processing pipeline, since the time for map generation is now reduced from about 60 to 3 minutes by the parallelization discussed in the previous article. Parallel cluster processing time, therefore, enabled this better science result. The first mapping is typically from a point (denoted by coordinates x,y) in the left image to a point (x',y') in the right image. The second mapping is from (x',y') in the right image to some point (x",y") in the left image. If (x,y) and(x",y") are identical, then the mapping is considered perfect. The perfect-match criterion can be relaxed by introducing an error window that admits of round-off error and a small amount of noise. The mapping procedure can be repeated until all points in each image not connected to points in the other image are eliminated, so that what remains are verified correlation data.

Klimeck, Gerhard; Yagi, Gary

2008-01-01

248

Radio-planetary from tie from Phobos-2 VLBI data  

NASA Technical Reports Server (NTRS)

In an ongoing effort to improve the knowledge of the relative orientation (the 'frame tie') of the planetary ephemeris reference frame used in deep navigation and a second reference frame that is defined by the coordinates of a set of extragalactic radio sources, VLBI observations of the Soviet Phobos-2 spacecraft and nearby (in angle) radio sources were obtained at two epochs in 1989, shortly after the spacecraft entered orbit about Mars. The frame tie is an important systematic error source affecting both interplanetary navigation and the process of improving the theory of the Earth's orientation. The data from a single Phobos-2 VLBI session measure one component of the direction vector from Earth to Mars in the frame of the extragalactic radio sources (the 'radio frame'). The radio frame has been shown to be stable and internally consistent with an accuracy of 5 nrad. The planetary ephemeris reference frame has an internal consistency of approximately 15 nrad. The planetary and radio source reference frames were aligned prior to 1989 and measurements of occulations of the radio source 3C273 by the Moon. The Phobos-2 VLBI measurements provide improvement in the accuracy of two of the three angles describing a general rotation between the planetary and radio reference frames. A complete set of measurements is not available because data acquisition was terminated prematurely by loss of spacecraft. The analysis of the two Phobos-2 VLBI data sets indicates that, in the directions of the two rotation components determined by these data, the JPL planetary ephemeris DE200 is aligned with the radio frame as adopted by the International Earth Rotation Service within an accuracy of 20-40 nrad, depending on direction. The limiting errors in the solutions for these offsets are spacecraft trajectory (20 nrad), instrumental biases (19 nrad), and dependence of quasar coordinates on observing frequency (24 nrad).

Hildebrand, C. E.; Iijima, B. A.; Kroger, P. M.; Folkner, W. M.; Edwards, C. D.

1994-01-01

249

Effects of a Group Intervention on the Career Network Ties of Finnish Adolescents  

ERIC Educational Resources Information Center

The authors evaluated how a group-based career intervention affected career network ties among Finnish adolescents as they made educational choices and prepared for their transition to secondary education. They examined the career-related network ties of 868 students during their last year in comprehensive school (junior high school) in a…

Jokisaari, Markku; Vuori, Jukka

2011-01-01

250

The role of strong and weak ties in Facebook: a community structure perspective  

E-print Network

The role of strong and weak ties in Facebook: a community structure perspective Emilio Ferrara the original intuition underlying so-called weak ties and their role in complex social networks. The analysis In this paper we report our findings on the analysis of two large datasets representing the friendship structure

Ferrara, Emilio

251

Structural Assimilation Revisited: Mexican-Origin Nativity and Cross-Ethnic Primary Ties  

ERIC Educational Resources Information Center

Classical assimilation theory postulates that over time, members of immigrant groups will develop more primary ties with native members of the host society. However, lack of data has led most research to rely on the study of either spatial mobility or other secondary variables as proxies of primary ties. Using data from the Multi-City Study of…

Brown, Susan K.

2006-01-01

252

Effectiveness of Body Ties for Imporving the Soft Error Tolerance of SOI Technologies  

SciTech Connect

Floating body effects can undermine the soft-error tolerance of partially-depleted SOI technologies [1, 2]. Body ties are used to mitigate floating body effects [3,4]. In this paper, we study the charge collection properties and effectiveness of different body tie designs for reducing soft errors induced by energetic particle strikes.

Dodd, P.E.; Draper, B.L.; Schwank, J.R.; Shaneyfelt, M.R.

1999-06-29

253

The Search-Transfer Problem: The Role of Weak Ties in Sharing Knowledge across Organization Subunits  

Microsoft Academic Search

This paper combines the concept of weak ties from social network research and the notion of complex knowledge to explain the role of weak ties in sharing knowledge across organization subunits in a multiunit organization. I use a network study of 120 new-product development projects undertaken by 41 divisions in a large electronics company to examine the task of developing

Morten T. Hansen

1999-01-01

254

Requisite Role of Angiopoietin-1, a Ligand for the TIE2 Receptor, during Embryonic Angiogenesis  

Microsoft Academic Search

Vascular endothelial growth factor (VEGF), which acts via members of a family of endothelial-specific receptor tyrosine kinases, is the only factor that has been shown definitively to play a role in the formation of the embryonic vasculature. Only one other family of receptor tyrosine kinases, comprising TIE1 and TIE2, is largely endothelial cell specific. We have recently cloned a ligand

Chitra Suri; Pamela F Jones; Sybill Patan; Sona Bartunkova; Peter C Maisonpierre; Samuel Davis; Thomas N Sato; George D Yancopoulos

1996-01-01

255

Tie-Zone Watershed, Bottlenecks and Segmentation Robustness Analysis Romaric Audigier, Roberto de Alencar Lotufo  

E-print Network

Tie-Zone Watershed, Bottlenecks and Segmentation Robustness Analysis Romaric Audigier, Roberto de.dca.fee.unicamp.br/lotufo Abstract In a recent paper [1], a new type of watershed (WS) transform was introduced: the tie-zone watershed (TZWS). This region-based watershed transform does not depend on arbitrary implementation

Cord, Aurélien

256

Neural dynamics of social tie formation in economic decision-making.  

PubMed

The disposition for prosocial conduct, which contributes to cooperation as arising during social interaction, requires cortical network dynamics responsive to the development of social ties, or care about the interests of specific interaction partners. Here, we formulate a dynamic computational model that accurately predicted how tie formation, driven by the interaction history, influences decisions to contribute in a public good game. We used model-driven functional MRI to test the hypothesis that brain regions key to social interactions keep track of dynamics in tie strength. Activation in the medial prefrontal cortex (mPFC) and posterior cingulate cortex tracked the individual's public good contributions. Activation in the bilateral posterior superior temporal sulcus (pSTS), and temporo-parietal junction was modulated parametrically by the dynamically developing social tie-as estimated by our model-supporting a role of these regions in social tie formation. Activity in these two regions further reflected inter-individual differences in tie persistence and sensitivity to behavior of the interaction partner. Functional connectivity between pSTS and mPFC activations indicated that the representation of social ties is integrated in the decision process. These data reveal the brain mechanisms underlying the integration of interaction dynamics into a social tie representation which in turn influenced the individual's prosocial decisions. PMID:25338630

Bault, Nadège; Pelloux, Benjamin; Fahrenfort, Johannes J; Ridderinkhof, K Richard; van Winden, Frans

2014-10-22

257

Intra and extravascular transmembrane signalling of angiopoietin-1-Tie2 receptor in health and disease.  

PubMed

Angiopoietin-1 (Ang-1) is the primary agonist for Tie2 tyrosine kinase receptor (Tie2), and the effect of Ang-1-Tie2 signalling is context-dependent. Deficiency in either Ang-1 or Tie2 protein leads to severe microvascular defects and subsequent embryonic lethality in murine model. Tie2 receptors are expressed in several cell types, including endothelial cells, smooth muscle cells, fibroblasts, epithelial cells, monocytes, neutrophils, eosinophils and glial cells. Ang-1-Tie2 signalling induces a chemotactic effect in smooth muscle cells, neutrophils and eosinophils, and induces differentiation of mesenchymal cells to smooth muscle cells. Additionally, this signalling pathway induces the secretion of serotonin, matrix metalloproteinases (MMPs) and plasmin. Ang-1 inhibits the secretion of tissue inhibitor of matrix metalloproteinase (TIMPs). Aberrant expression and activity of Tie2 in vascular and non-vascular cells may result in the development of rheumatoid arthritis, cancer, hypertension and psoriasis. Ang-1 has an anti-inflammatory effect, when co-localized with vascular endothelial growth factor (VEGF) in the vasculature. Thus, Ang-1 could be potentially important in the therapy of various pathological conditions such as pulmonary hypertension, arteriosclerosis and diabetic retinopathy. In this article, we have summarized and critically reviewed the pathophysiological role of Ang-1-Tie2 signalling pathway. PMID:18266978

Makinde, T; Agrawal, D K

2008-06-01

258

Targeting VE-PTP activates TIE2 and stabilizes the ocular vasculature  

PubMed Central

Retinal and choroidal neovascularization (NV) and vascular leakage contribute to visual impairment in several common ocular diseases. The angiopoietin/TIE2 (ANG/TIE2) pathway maintains vascular integrity, and negative regulators of this pathway are potential therapeutic targets for these diseases. Here, we demonstrated that vascular endothelial-protein tyrosine phosphatase (VE-PTP), which negatively regulates TIE2 activation, is upregulated in hypoxic vascular endothelial cells, particularly in retinal NV. Intraocular injection of an anti–VE-PTP antibody previously shown to activate TIE2 suppressed ocular NV. Furthermore, a small-molecule inhibitor of VE-PTP catalytic activity (AKB-9778) activated TIE2, enhanced ANG1-induced TIE2 activation, and stimulated phosphorylation of signaling molecules in the TIE2 pathway, including AKT, eNOS, and ERK. In mouse models of neovascular age-related macular degeneration, AKB-9778 induced phosphorylation of TIE2 and strongly suppressed NV. Ischemia-induced retinal NV, which is relevant to diabetic retinopathy, was accentuated by the induction of ANG2 but inhibited by AKB-9778, even in the presence of high levels of ANG2. AKB-9778 also blocked VEGF-induced leakage from dermal and retinal vessels and prevented exudative retinal detachments in double-transgenic mice with high expression of VEGF in photoreceptors. These data support targeting VE-PTP to stabilize retinal and choroidal blood vessels and suggest that this strategy has potential for patients with a wide variety of retinal and choroidal vascular diseases PMID:25180601

Shen, Jikui; Frye, Maike; Lee, Bonnie L.; Reinardy, Jessica L.; McClung, Joseph M.; Ding, Kun; Kojima, Masashi; Xia, Huiming; Seidel, Christopher; Silva, Raquel Lima e; Dong, Aling; Hackett, Sean F.; Wang, Jiangxia; Howard, Brian W.; Vestweber, Dietmar; Kontos, Christopher D.; Peters, Kevin G.; Campochiaro, Peter A.

2014-01-01

259

10 CFR 71.45 - Lifting and tie-down standards for all packages.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 2010-01-01 false Lifting and tie-down standards for all packages...Package Approval Standards § 71.45 Lifting and tie-down standards for all packages. (a) Any lifting attachment that is a structural...

2010-01-01

260

Targeting VE-PTP activates TIE2 and stabilizes the ocular vasculature.  

PubMed

Retinal and choroidal neovascularization (NV) and vascular leakage contribute to visual impairment in several common ocular diseases. The angiopoietin/TIE2 (ANG/TIE2) pathway maintains vascular integrity, and negative regulators of this pathway are potential therapeutic targets for these diseases. Here, we demonstrated that vascular endothelial-protein tyrosine phosphatase (VE-PTP), which negatively regulates TIE2 activation, is upregulated in hypoxic vascular endothelial cells, particularly in retinal NV. Intraocular injection of an anti-VE-PTP antibody previously shown to activate TIE2 suppressed ocular NV. Furthermore, a small-molecule inhibitor of VE-PTP catalytic activity (AKB-9778) activated TIE2, enhanced ANG1-induced TIE2 activation, and stimulated phosphorylation of signaling molecules in the TIE2 pathway, including AKT, eNOS, and ERK. In mouse models of neovascular age-related macular degeneration, AKB-9778 induced phosphorylation of TIE2 and strongly suppressed NV. Ischemia-induced retinal NV, which is relevant to diabetic retinopathy, was accentuated by the induction of ANG2 but inhibited by AKB-9778, even in the presence of high levels of ANG2. AKB-9778 also blocked VEGF-induced leakage from dermal and retinal vessels and prevented exudative retinal detachments in double-transgenic mice with high expression of VEGF in photoreceptors. These data support targeting VE-PTP to stabilize retinal and choroidal blood vessels and suggest that this strategy has potential for patients with a wide variety of retinal and choroidal vascular diseases. PMID:25180601

Shen, Jikui; Frye, Maike; Lee, Bonnie L; Reinardy, Jessica L; McClung, Joseph M; Ding, Kun; Kojima, Masashi; Xia, Huiming; Seidel, Christopher; Lima e Silva, Raquel; Dong, Aling; Hackett, Sean F; Wang, Jiangxia; Howard, Brian W; Vestweber, Dietmar; Kontos, Christopher D; Peters, Kevin G; Campochiaro, Peter A

2014-10-01

261

Non-Equilibrium and Current Sheet Formation in Line-Tied  

E-print Network

Non-Equilibrium and Current Sheet Formation in Line-Tied Magnetic Fields C. S. Ng and A years Require sharp gradient (current sheets) Line-tying in photosphere Quasi-equilibrium --- most equations #12;Magnetostatic equilibrium J z +[A, J] = 0 ,or B J = 0 with = = 0. c.f. 2D Euler equation

Ng, Chung-Sang

262

Experimentally Validated Compatibility Strut and Tie Modeling of Reinforced Concrete Bridge Piers  

E-print Network

A compatibility-based strut-and-tie model C-STM is proposed for analyzing deep beams and disturbed regions with particular emphasis on reinforced concrete bridge piers. In addition to the normal strut-and-tie force equilibrium requirements the model...

Scott, Reece Melby

2010-10-12

263

TIES - an engineering and planning methodology for deactivation and decommissioning of nuclear facilities  

SciTech Connect

Task integrated evaluation and sequencing (TIES) is a methodology developed by Fluor Daniel for the disciplined planning of complex deactivation and decommissioning (D&D) projects. TIES was developed for the deactivation and transition planning of the ROVER facility at the Idaho National Engineering Laboratory and is consistent with the U.S. Department of Energy`s strategy for deactivation of surplus facilities. The TIES methodology is particularly effective during the deactivation period of facility transition where hazards are reduced, systems are isolated, and equipment is removed. The use of TIES results in the overall planning of the deactivation effort and focuses on the achievement of the desired end points. Because it is task oriented and sequenced, TIES forms a basis for a rolling window of detailed design planning, which provides flexibility in dealing with unforeseen problems that potentially could arise during the project.

Divona, C.J.; Marchetti, S. [Fluor Engineers, Inc., Irvine, CA (United States)

1995-12-31

264

Increased Expression of Angiopoietins and Tie2 in the Lungs of Chronic Asthmatic Mice  

PubMed Central

Angiopoietin (Ang)1 and Ang2 are ligands for Tie2 tyrosine kinase receptor (Tie2). Elevated levels of Ang1 and Ang2 in induced sputum of patients with asthma have been reported, with a positive correlation of Ang2 levels with the severity of airway occlusion. Although studies have shown Tie2-mediated regulation of nonvascular cells in some pathological conditions, current knowledge on Tie2 signaling in asthma is limited to the vasculature. We examined the expression pattern of Ang1, Ang2, vascular endothelial growth factor (VEGF), and Tie2 and their correlation with the degree of airway remodeling in the lung of ovalbumin (OVA)-sensitized and OVA-challenged mice with airway hyperresponsiveness. Lung tissues were isolated from Balb/c mice after OVA sensitization and challenge. Hematoxylin and eosin, periodic acid-Schiff, and trichrome staining were used to show the lung pathology. The expression of Ang1, Ang2, VEGF, and Tie2 was examined using immunofluorescence, Western blot, ELISA, and real-time PCR. In the lung of normal mice, Tie2 expression was detected only in the blood vessels. However, in the lung of OVA-sensitized and OVA-challenged mice, Tie2 was abundantly expressed in airway epithelial cells and in a subset of macrophages in addition to constitutive expression in pulmonary vessels. The increase in Tie2 expression correlated with the severity of airway remodeling. Macrophages and airway epithelial cells express Ang2 and VEGF only in allergic models. Ang1 was constitutively expressed, with a decrease in mRNA level in allergic models. In conclusion, increased expression of Tie2 and Ang2 in allergic airway epithelium and alveolar macrophages correlates with the severity of airway remodeling. PMID:20463289

Makinde, Toluwalope O.; Agrawal, Devendra K.

2011-01-01

265

Increased expression of angiopoietins and Tie2 in the lungs of chronic asthmatic mice.  

PubMed

Angiopoietin (Ang)1 and Ang2 are ligands for Tie2 tyrosine kinase receptor (Tie2). Elevated levels of Ang1 and Ang2 in induced sputum of patients with asthma have been reported, with a positive correlation of Ang2 levels with the severity of airway occlusion. Although studies have shown Tie2-mediated regulation of nonvascular cells in some pathological conditions, current knowledge on Tie2 signaling in asthma is limited to the vasculature. We examined the expression pattern of Ang1, Ang2, vascular endothelial growth factor (VEGF), and Tie2 and their correlation with the degree of airway remodeling in the lung of ovalbumin (OVA)-sensitized and OVA-challenged mice with airway hyperresponsiveness. Lung tissues were isolated from Balb/c mice after OVA sensitization and challenge. Hematoxylin and eosin, periodic acid-Schiff, and trichrome staining were used to show the lung pathology. The expression of Ang1, Ang2, VEGF, and Tie2 was examined using immunofluorescence, Western blot, ELISA, and real-time PCR. In the lung of normal mice, Tie2 expression was detected only in the blood vessels. However, in the lung of OVA-sensitized and OVA-challenged mice, Tie2 was abundantly expressed in airway epithelial cells and in a subset of macrophages in addition to constitutive expression in pulmonary vessels. The increase in Tie2 expression correlated with the severity of airway remodeling. Macrophages and airway epithelial cells express Ang2 and VEGF only in allergic models. Ang1 was constitutively expressed, with a decrease in mRNA level in allergic models. In conclusion, increased expression of Tie2 and Ang2 in allergic airway epithelium and alveolar macrophages correlates with the severity of airway remodeling. PMID:20463289

Makinde, Toluwalope O; Agrawal, Devendra K

2011-03-01

266

49 CFR 1242.15 - Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast...  

Code of Federal Regulations, 2012 CFR

...false Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast, track laying and...15 Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast, track laying...

2012-10-01

267

49 CFR 1242.15 - Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast...  

Code of Federal Regulations, 2013 CFR

...false Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast, track laying and...15 Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast, track laying...

2013-10-01

268

49 CFR 1242.15 - Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast...  

Code of Federal Regulations, 2010 CFR

...false Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast, track laying and...15 Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast, track laying...

2010-10-01

269

49 CFR 1242.15 - Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast...  

Code of Federal Regulations, 2011 CFR

...false Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast, track laying and...15 Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast, track laying...

2011-10-01

270

49 CFR 1242.15 - Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast...  

...Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast, track laying and surfacing...Roadway, tunnels and subways, bridges and culverts, ties, rails, other track material, ballast, track laying and...

2014-10-01

271

Tying dark matter to baryons with self-interactions.  

PubMed

Self-interacting dark matter (SIDM) models have been proposed to solve the small-scale issues with the collisionless cold dark matter paradigm. We derive equilibrium solutions in these SIDM models for the dark matter halo density profile including the gravitational potential of both baryons and dark matter. Self-interactions drive dark matter to be isothermal and this ties the core sizes and shapes of dark matter halos to the spatial distribution of the stars, a radical departure from previous expectations and from cold dark matter predictions. Compared to predictions of SIDM-only simulations, the core sizes are smaller and the core densities are higher, with the largest effects in baryon-dominated galaxies. As an example, we find a core size around 0.3 kpc for dark matter in the Milky Way, more than an order of magnitude smaller than the core size from SIDM-only simulations, which has important implications for indirect searches of SIDM candidates. PMID:25062162

Kaplinghat, Manoj; Keeley, Ryan E; Linden, Tim; Yu, Hai-Bo

2014-07-11

272

Correcting amplitude, time, and phase mis-ties in seismic data  

SciTech Connect

Seismic lines from different vintages frequently mis-tie where they intersect. The mis-ties may stem from different amplitudes, a shift in time, or different wave-let character. The authors can correct these mis-ties to a great extent by applying a scale factor, a static time shift, and a phase rotation to one of the lines. The authors describe algorithms to compute the amplitude, time, and phase differences at each intersection among a series of 2-D seismic lines. They can then use an iterative least-squares technique to derive optimal mis-tie corrections for each line. They include a necessary modification of the least-squares technique for the nonlinear phase data. The various algorithms are stable, fast, and accurate. They have used them in conjunction with an interactive workstation seismic interpretation program for five years. The scalar mis-tie corrections greatly enhance the consistency of the seismic data. The authors show the results of the mis-tie package applied to a 20-line survey consisting of five vintages of seismic data. The resulting mis-tie corrections significantly improve the fit between the 20 lines.

Bishop, T.N. (Chevron Petroleum Technology Co., Calgary, Alberta (Canada)); Nunns, A.G. (Chevron Nigeria Ltd., Lagos (Nigeria))

1994-06-01

273

Survey of Transmission Cost Allocation Methodologies for Regional Transmission Organizations  

SciTech Connect

The report presents transmission cost allocation methodologies for reliability transmission projects, generation interconnection, and economic transmission projects for all Regional Transmission Organizations.

Fink, S.; Porter, K.; Mudd, C.; Rogers, J.

2011-02-01

274

TIE Climate, Water and Carbon Annual Report Year 1 (July 1,2006 through May 31,2007)  

E-print Network

TIE Climate, Water and Carbon Annual Report Year 1 (July 1,2006 through May 31,2007) Submitted by the TIE investment would simply fund business as usual. Indeed the sense of the relevance and urgency of the TIE capability has materialized. This will tap in nicely to the initiatives in super

Howat, Ian M.

275

Wideband Bow-Tie Slot Antennas with Tapered Tuning Stubs Abdelnasser A. Eldek, Atef Z. Elsherbeni and Charles E. Smith.  

E-print Network

Wideband Bow-Tie Slot Antennas with Tapered Tuning Stubs Abdelnasser A. Eldek, Atef Z. Elsherbeni of wideband operations, a bow-tie slot antenna fed by a coplanar waveguide (CPW) is investigated. The design was realized using a tapered metal stub introduced in the middle of the bow-tie slot. The modified structure

Elsherbeni, Atef Z.

276

Travel Grants --Data Collection TIE provides awards to offset transportation costs for Tufts students who are collecting data  

E-print Network

Travel Grants -- Data Collection TIE provides awards to offset transportation costs for Tufts are only offered to currently active Tufts students. 2. Total TIE travel funding for any individual applicant may not exceed $1,000 per fiscal year, July 1 -- June 30. 3. TIE travel funds are only available

Dennett, Daniel

277

COPLANAR WAVEGUIDE FED BOW-TIE SLOT ANTENNAS FOR WIDEBAND Abdelnasser A. Eldek, Atef Z. Elsherbeni, and Charles E. Smith  

E-print Network

COPLANAR WAVEGUIDE FED BOW-TIE SLOT ANTENNAS FOR WIDEBAND OPERATIONS Abdelnasser A. Eldek, Atef Z of Electrical Engineering The University of Mississippi University, MS 38677, USA ABSTRACT: A bow-tie slot dimensional parameters have been studied for wideband operations in the X-band. A set of two element bow-tie

Elsherbeni, Atef Z.

278

Exploring Social-Historical Ties on Location-Based Social Networks Huiji Gao, Jiliang Tang, and Huan Liu  

E-print Network

Exploring Social-Historical Ties on Location-Based Social Networks Huiji Gao, Jiliang Tang approach properly models user's check- ins and shows how social and historical ties can help location prediction. Introduction Social media extends the physical boundary of user activi- ties. As a new type

Liu, Huan

279

50 CFR 86.31 - How much money may I charge the public to use tie-up facilities?  

Code of Federal Regulations, 2013 CFR

...much money may I charge the public to use tie-up facilities? 86.31 Section 86...much money may I charge the public to use tie-up facilities? You may charge the...based on other publicly and privately owned tie-up facilities in the area. You must...

2013-10-01

280

50 CFR 86.31 - How much money may I charge the public to use tie-up facilities?  

Code of Federal Regulations, 2012 CFR

...much money may I charge the public to use tie-up facilities? 86.31 Section 86...much money may I charge the public to use tie-up facilities? You may charge the...based on other publicly and privately owned tie-up facilities in the area. You must...

2012-10-01

281

NETWORK TIE FORMATION IN A TWO-MODE NETWORK--IS IT TECHNICAL OR SOCIAL CAPITAL THAT MATTERS?  

E-print Network

1 NETWORK TIE FORMATION IN A TWO-MODE NETWORK--IS IT TECHNICAL OR SOCIAL CAPITAL THAT MATTERS? Anke@pegasus.rutgers.edu #12;2 NETWORK TIE FORMATION IN A TWO-MODE NETWORK--IS IT TECHNICAL OR SOCIAL CAPITAL THAT MATTERS examines tie formation under a process of activity selection, contributions to innovations, within

Lin, Xiaodong

282

50 CFR 86.31 - How much money may I charge the public to use tie-up facilities?  

Code of Federal Regulations, 2011 CFR

...much money may I charge the public to use tie-up facilities? 86.31 Section 86...much money may I charge the public to use tie-up facilities? You may charge the...based on other publicly and privately owned tie-up facilities in the area. You must...

2011-10-01

283

Global TIE: Developing a Virtual Network of Robotic Observatories for K-12 Education  

NASA Astrophysics Data System (ADS)

Astronomy in grades K-12 is traditionally taught (if at all) using textbooks and a few simple hands-on activities. In addition, most students, by High School graduation, will never have even looked through the eyepiece of a telescope. The possibility now exists to establish a network of research grade telescopes, no longer useful to the professional astronomical community, that can be made accessible to schools all across the country through existing IT technologies and applications. These telescopes could provide unparalleled research and educational opportunities for a broad spectrum of K-12 and college students and turns underutilized observatory facilities into valuable, state-of-the-art teaching centers. The NASA-sponsored Telescopes In Education (TIE, http://tie.jpl.nasa.gov) project has been wildly successful in engaging the K-12 education community in real-time, hands-on, interactive astronomy activities. Hundreds of schools in the US, Australia, Canada, England, and Japan have participated in the TIE program, remotely controlling the 24-inch telescope at the Mount Wilson Observatory from their classrooms. In recent years, several (approximately 20 to date) other telescopes have been, or are in the process of being, outfitted for remote use as TIE affiliates. Global TIE integrates these telescopes seamlessly into one virtual observatory and provides the services required to operate this facility, including a scheduling service, tools for data manipulation, an online proposal review environment, an online "Virtual TIE Student Ap J" for publication of results, and access to related educational materials provided by the TIE community. Global TIE provides unparalleled research and educational opportunities for a broad spectrum of K-12 and college students and turns essentially unused observatory facilities into valuable, state-of-the-art teaching centers. This presentation describes the Global TIE Observatory data and organizational systems and details the technology, partnerships, operational capabilities, science applications, and learning opportunities that this powerful virtual observatory network will provide.

Mayo, L. A.; Clark, G.

2001-11-01

284

Recovery From Radiation-induced Bone Marrow Damage by HSP25 Through Tie2 Signaling  

SciTech Connect

Purpose: Whole-body radiation therapy can cause severe injury to the hematopoietic system, and therefore it is necessary to identify a novel strategy for overcoming this injury. Methods and Materials: Mice were irradiated with 4.5 Gy after heat shock protein 25 (HSP25) gene transfer using an adenoviral vector. Then, peripheral blood cell counts, histopathological analysis, and Western blotting on bone marrow (BM) cells were performed. The interaction of HSP25 with Tie2 was investigated with mouse OP9 and human BM-derived mesenchymal stem cells to determine the mechanism of HSP25 in the hematopoietic system. Results: HSP25 transfer increased BM regeneration and reduced apoptosis following whole-body exposure to ionizing radiation (IR). The decrease in Tie2 protein expression that followed irradiation of the BM was blocked by HSP25 transfer, and Tie2-positive cells were more abundant among the BM cells of HSP25-transferred mice, even after IR exposure. Following systemic RNA interference of Tie2 before IR, HSP25-mediated radioprotective effects were partially blocked in both mice and cell line systems. Stability of Tie2 was increased by HSP25, a response mediated by the interaction of HSP25 with Tie2. IR-induced tyrosine phosphorylation of Tie2 was augmented by HSP25 overexpression; downstream events in the Tie2 signaling pathway, including phosphorylation of AKT and EKR1/2, were also activated. Conclusions: HSP25 protects against radiation-induced BM damage by interacting with and stabilizing Tie2. This may be a novel strategy for HSP25-mediated radioprotection in BM.

Lee, Hae-June [Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul (Korea, Republic of)] [Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul (Korea, Republic of); Kwon, Hee-Chung [Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Seoul (Korea, Republic of)] [Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Seoul (Korea, Republic of); Chung, Hee-Yong [College of Medicine, Hanyang University, Seoul (Korea, Republic of)] [College of Medicine, Hanyang University, Seoul (Korea, Republic of); Lee, Yoon-Jin [Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul (Korea, Republic of)] [Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul (Korea, Republic of); Lee, Yun-Sil, E-mail: yslee0425@ewha.ac.kr [College of Pharmacy and Division of Life and Pharmaceutical Sciences, Ewha Woman's University, Seoul (Korea, Republic of)] [College of Pharmacy and Division of Life and Pharmaceutical Sciences, Ewha Woman's University, Seoul (Korea, Republic of)

2012-09-01

285

CO-REC football playoffs FALL 2010 tie 6pm fld 9  

E-print Network

CO-REC football playoffs FALL 2010 Intruders F Mon 11/8 tie 6pm fld 9 Wolfpack 15-0 Tue 11/9 6pm Hamburgulars 6pm fld 8 14-6 J Mon 11/8 tie 7pm fld 10 Runkles Mon 11/15 7pm champs ! G Phyrst and Goal Tue 11 A Better Late than Never Wed 11/10 8pm fld 4 Better Late Than Never B Pearl Lotus champ ! 21-18 NO TIES

Yener, Aylin

286

Performance effects of tie-truss modifications for a 70-meter centerline beam waveguide antenna  

NASA Technical Reports Server (NTRS)

The elevation-axis tie truss of the 70-m antennas would have to be modified to accommodate a centerline beam waveguide. To accomplish this, the center section of the tie truss has to be altered, causing a change in the tie-truss compliance and affecting structural performance. Even with the center section completely removed, the worst-case rms pathlength error due to gravity load is increased from 0.025 to only 0.030 inches. Using a simple postprocessor technique, the effects of modifying the compliance can be predicted without resorting to multiple and costly re-analyses of large finite-element models on a mainframe computer.

Cucchissi, J. J.

1989-01-01

287

30 CFR 77.704-10 - Tying into energized high-voltage surface circuits.  

Code of Federal Regulations, 2011 CFR

...SAFETY AND HEALTH MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES Grounding § 77.704-10 Tying into energized high-voltage surface circuits. If the work of forming an...

2011-07-01

288

ICU Infections Among Elderly Tied to Higher Death Rates After Discharge  

MedlinePLUS

... Among Elderly Tied to Higher Death Rates After Discharge Intravenous line infections and ventilator-related pneumonia among ... likely to die within five years after hospital discharge. Overall, almost 60 percent of the patients died ...

289

TV Alcohol Ads Tied to Problem Drinking for Teens, Study Finds  

MedlinePLUS

... features on this page, please enable JavaScript. TV Alcohol Ads Tied to Problem Drinking for Teens, Study ... January 19, 2015 Related MedlinePlus Pages Alcoholism and Alcohol Abuse Underage Drinking MONDAY, Jan. 19, 2015 (HealthDay ...

290

The effects of emitter-tied field plates on lateral PNP ionizing radiation response  

SciTech Connect

Radiation response comparisons of lateral PNP bipolar technologies reveal that device hardening may be achieved by extending the emitter contact over the active base. The emitter-tied field plate suppresses recombination of carriers with interface traps.

Barnaby, H.J.; Schrimpf, R.D.; Cirba, C.R. [Vanderbilt Univ., Nashville, TN (United States); Pease, R.L. [RLP Research, Inc., Albuquerque, NM (United States); Fleetwood, D.M. [Sandia National Labs., Albuquerque, NM (United States); Kosier, S.L. [VTC Inc., Bloomington, MN (United States)

1998-03-01

291

Comparison of Methods for Evaluating Nuclear Thermal Propulsion Tie-Tube Designs  

SciTech Connect

One of the fundamental structural components in a nuclear thermal rocket design is the tie tube. Proper cooling and flow modeling is important both for the structural integrity of the reactor core and for proper design of downstream components that operate on the hydrogen exiting the tie tube. Two models have been developed. The first is a spreadsheet-based tool designed for sizing tie-tube components, considering mechanical stress and strain limits, deposited moderator power, thermal expansion along the flow path, and conduction from adjacent fuel blocks. The second is a three-dimensional SINDA/FLUINT model used as a benchmark, containing a complete finite-element fuel block and a 1/6th tie-tube model. This paper discusses the performance of both models, as well as the advantages and limitations of each.

Kapernick, Richard J. [Nuclear Systems Design Group, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States); Dixon, David D. [Nuclear Systems Design Group, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States); Department of Nuclear Engineering, University of Tennessee, Knoxville, TN 37996 (United States)

2008-01-21

292

Discovery of 100-Plus Genes Tied to Autism May Improve Treatments  

MedlinePLUS

... page, please enable JavaScript. Discovery of 100-Plus Genes Tied to Autism May Improve Treatments Disorder has ... 29, 2014 Related MedlinePlus Pages Autism Spectrum Disorder Genes and Gene Therapy WEDNESDAY, Oct. 29, 2014 (HealthDay ...

293

78 FR 75545 - Prestressed Concrete Steel Rail Tie Wire From the People's Republic of China: Preliminary...  

Federal Register 2010, 2011, 2012, 2013

...from the People's Republic of China (``PRC'') is being, or...from the People's Republic of China,'' from Christian Marsh...Concrete Steel Rail Tie Wire From Mexico, The People's Republic of China, and Thailand:...

2013-12-12

294

Sleeping on Back in Pregnancy Tied to Stillbirth Risk in Study  

MedlinePLUS

... on this page, please enable JavaScript. Sleeping on Back in Pregnancy Tied to Stillbirth Risk in Study ... 2015 (HealthDay News) -- Women who sleep on their backs in the later months of pregnancy may have ...

295

Kidney, Urinary Birth Defects Tied to Obesity in Moms-To-Be  

MedlinePLUS

... enable JavaScript. Kidney, Urinary Birth Defects Tied to Obesity in Moms-to-Be As weight increased, so ... Children's Hospital. "The more we find out about obesity, the more we find out what a public ...

296

Romantic Partnerships and the Dispersion of Social Ties: A Network Analysis of Relationship Status on Facebook  

E-print Network

A crucial task in the analysis of on-line social-networking systems is to identify important people --- those linked by strong social ties --- within an individual's network neighborhood. Here we investigate this question for a particular category of strong ties, those involving spouses or romantic partners. We organize our analysis around a basic question: given all the connections among a person's friends, can you recognize his or her romantic partner from the network structure alone? Using data from a large sample of Facebook users, we find that this task can be accomplished with high accuracy, but doing so requires the development of a new measure of tie strength that we term `dispersion' --- the extent to which two people's mutual friends are not themselves well-connected. The results offer methods for identifying types of structurally significant people in on-line applications, and suggest a potential expansion of existing theories of tie strength.

Backstrom, Lars

2013-01-01

297

Loads on Tie-Down Systems for Floating Drilling Rigs during Hurricane Conditions  

E-print Network

Tie-down systems are used to fasten drilling rigs to the deck of offshore structures during harsh environmental conditions such as hurricanes. During Hurricane Ivan (2004) and Katrina (2005), a number of offshore structures were moved and several...

Bae, Yoon Hyeok

2010-01-16

298

Use of 'the Pill' Tied to Higher Risk for Rare Brain Cancer  

MedlinePLUS

... the Pill' Tied to Higher Risk for Rare Brain Cancer But the odds of any one birth control ... January 22, 2015 Related MedlinePlus Pages Birth Control Brain Cancer THURSDAY, Jan. 22, 2015 (HealthDay News) -- The risk ...

299

CHARACTERIZATION AND ISOLATION OF ORGANIC TOXICANTS IN WHOLE SEDIMENT TOXICITY INDENTIFICATION EVALUATIONS (TIES)  

EPA Science Inventory

Development of whole sediment toxicity identification and evaluation (TIEs) methods has been under way for approximately four years. These methods are necessary to define cause and effect relationships in toxic sediments during ecological risk assessments, remediation and disposa...

300

For Immediate Release --Tuesday, Apr. 23, 2013 University of Lethbridge strengthens ties with high school  

E-print Network

strengthens ties with high school students with 2nd Annual Let's DO Science Day with local high school students by organizing an event that provides hands inspire them to consider careers in science after graduating from high school

Morris, Joy

301

EFFECTS OF BRINE ADDITION ON EFFLUENT TOXICITY AND MARINE TOXICITY IDENTIFICATION EVALUATION (TIE) MANIPULATIONS  

EPA Science Inventory

Little information is available concerning the effect of salinity adjustment on effluent storage and toxicity identification evaluation (TIE) performance. hese factors are important for accurate assessments of potential toxicity to marine organisms. he objective of this study was...

302

Johns Hopkins researchers find cancer-causing protein strongly tied to hormone resistance in breast cancer:  

Cancer.gov

In dozens of experiments in mice and in human cancer cells, a team of Johns Hopkins scientists has closely tied production of a cancer-causing protein called TWIST to the development of estrogen resistance in women with breast cancer.

303

Analysis and design of broadside-coupled striplines-fed bow-tie antennas  

Microsoft Academic Search

The design of a bow-tie antenna fed by broadside-coupled striplines (BCS) for the 2.4-GHz ISM band is described. The two fins of the bow tie are, respectively, on the two sides of the substrate. The feeding balanced lines adopted are the BCS. A quarter-wave transformer is used to transform the microstrip line input to the BCS feed. An analysis method

Yu-De Lin; Syh-Nan Tsai

1998-01-01

304

Inhibition of Tyrosine Kinase Receptor Tie2 Reverts HCV-Induced Hepatic Stellate Cell Activation  

PubMed Central

Background Hepatitis C virus (HCV) infection is a major cause of chronic liver disease (CLD) and is frequently linked to intrahepatic microvascular disorders. Activation of hepatic stellate cells (HSC) is a central event in liver damage, due to their contribution to hepatic renewal and to the development of fibrosis and hepatocarcinoma. During the progression of CLDs, HSC attempt to restore injured tissue by stimulating repair processes, such as fibrosis and angiogenesis. Because HSC express the key vascular receptor Tie2, among other angiogenic receptors and mediators, we analyzed its involvement in the development of CLD. Methods Tie2 expression was monitored in HSC cultures that were exposed to media from HCV-expressing cells (replicons). The effects of Tie2 blockade on HSC activation by either neutralizing antibody or specific signaling inhibitors were also examined. Results Media from HCV-replicons enhanced HSC activation and invasion and upregulated Tie2 expression. Notably, the blockade of Tie2 receptor (by a specific neutralizing antibody) or signaling (by selective AKT and MAPK inhibitors) significantly reduced alpha-smooth muscle actin (?-SMA) expression and the invasive potential of HCV-conditioned HSC. Conclusions These findings ascribe a novel profibrogenic function to Tie2 receptor in the progression of chronic hepatitis C, highlighting the significance of its dysregulation in the evolution of CLDs and its potential as a novel therapeutic target. PMID:25302785

López-Rodríguez, Rosario; Hernández-Bartolomé, Ángel; Borque-Iñurrita, María Jesús; Molina-Jiménez, Francisca; García-Buey, Luisa; Moreno-Otero, Ricardo; Sanz-Cameno, Paloma

2014-01-01

305

Mobile devices and weak ties: a study of vision impairments and workplace access in Bangalore.  

PubMed

Abstract Purpose: To explore ways in which social and economic interactions are changed by access to mobile telephony. Method: This is a mixed-methods study of mobile phone use among 52 urban professionals with vision impairments in Bangalore, India. Results: Interviews and survey results indicated that mobile devices, specifically those with adaptive technology software, play a vital role as multi-purpose devices that enable people with disabilities to navigate economically and socially in an environment where accessibility remains a significant challenge. Conclusions: We found that mobile devices play a central role in enabling and sustaining weak ties, but also that these weak ties have important gender-specific implications. We found that women have less access to weak ties than men, which impacts women's access to assistive technology (AT). This has potential implications for women's sense of safety and independence, both of which are strongly related to AT access. Implications for Rehabilitation Adaptive technologies increase individuals' ability to keep in contact with casual connections or weak ties through phone calls or social media. Men tend to have stronger access to weak ties than women in India due to cultural impediments to independent access to public spaces. Weak ties are an important source of assistive technology (AT) due to the high rate of resale of used AT, typically through informal networks. PMID:25358437

Pal, Joyojeet; Lakshmanan, Meera

2014-10-31

306

Multi-purpose grid-tied inverter with smart grid capabilities  

NASA Astrophysics Data System (ADS)

Distributed energy storages play an important role in increasing the reliability and efficiency of the grid through means of peak load shaving, grid voltage support, and grid frequency support. It is important to have distributed energy storages that can utilize the functionalities of the modern smart grid to operate more effectively. The grid-tied inverter is one of the major components in a distributed energy storage that controls the power transfer between the grid and an energy storage device. In this research, a grid-tied inverter that can be used in distributed energy storage applications was designed, developed, and tested. This grid-tied inverter was designed with the capability to control both reactive and active power flow in either direction. The grid-tied inverter is equipped with communication capabilities so it can be remotely controlled by commands sent through a smart grid network. For demonstrative purposes, a user interface was developed to control and monitor the operation of the grid-tied inverter. Finally the operation of the grid-tied inverter was evaluated in accordance to IEEE 1547, the Standard for Interconnecting Distributed Resources with Electric Power Systems.

Liyanagedera, Chamika Mihiranga

307

The Determination of Tie-Line Fields for Coexisting Lipid Phases: an ESR Study  

PubMed Central

A novel method we refer to as the tie-line field (TLF) method has been developed to globally determine the tie-lines of any three-component two-phase coexistence region by fitting electron-spin resonance (ESR) spectra obtained from compositions on the coexistence curve and within the coexistence region. The TLF method is illustrated by applying it to the liquid-ordered (Lo) and liquid-disordered (Ld) phase coexistence region of the lipid system brain-sphingomyelin/dioleoylphosphatidylcholine/cholesterol (SPM/DOPC/Chol), for which an estimate of a tie-line was previously obtained by an earlier method also using ESR spectra. The essential aspect of the TLF method is the unique parameterization of the coexistence region called a “ruled surface”. The use of the ruled surface enables one to guarantee that tie-lines do not cross, as required by the phase rule, whereas previous methods lack this important constraint. It also makes simultaneous use of the full data set in determining the TLF and leads to a more efficient experimental design than previously used. The method is first tested out on synthetic data sets, then least-squares fitting of the ESR spectra with the parameterized model results in a tie-line field consistent with other known information on this lipid system. The best-fit tie-line field consists of the set of tie lines which are not exactly parallel; they exhibit a gradual change in slope with the largest slope within the coexistence region connecting the coexistence curve compositions with the highest and lowest cholesterol concentrations. The results are compared with those from more constrained methods of representing the tie-line fields as well as with the previous tie-line determination for the SPM/DOPC/Chol system. An accurate determination of the tie-line field of phase coexistence regions in lipid systems is a necessary step in determining coexisting lipid compositions to serve as models of cell plasma membranes. PMID:19673072

Smith, Andrew K; Freed, Jack H.

2009-01-01

308

Weak Ties and the Diffusion of Information in Dynamic Networks Cindy Hui, Mark Goldberg, Malik Magdon-Ismail, William A. Wallace  

E-print Network

Weak Ties and the Diffusion of Information in Dynamic Networks Cindy Hui, Mark Goldberg, Malik. This research focuses on the role of weak ties in the flow of information in social networks. Weak ties connect different social groups. Strong ties exist among individuals that share similar characteristics and have

Goldberg, Mark

309

Bulk Power System Dynamics and Control IV -Restructuring, August 24-28, Santorini, Greece. Improving Pacific Inter-tie Stability Using  

E-print Network

. Improving Pacific Inter-tie Stability Using Existing Static VAR Compensators and Thyristor Controlled Series ratings of the California-Oregon pacific inter-tie under var- ied operating conditions. 1. Introduction-flow on the pacific AC inter-tie called the California-Oregon Inter-tie (COI) for the critically stable cases

Venkatasubramanian, Mani V.

310

Vibration Testing of Electrical Cables to Quantify Loads at Tie-Down Locations  

NASA Technical Reports Server (NTRS)

The standard method for defining static equivalent structural load factors for components is based on Mile s equation. Unless test data is available, 5% critical damping is assumed for all components when calculating loads. Application of this method to electrical cable tie-down hardware often results in high loads, which often exceed the capability of typical tie-down options such as cable ties and P-clamps. Random vibration testing of electrical cables was used to better understand the factors that influence component loads: natural frequency, damping, and mass participation. An initial round of vibration testing successfully identified variables of interest, checked out the test fixture and instrumentation, and provided justification for removing some conservatism in the standard method. Additional testing is planned that will include a larger range of cable sizes for the most significant contributors to load as variables to further refine loads at cable tie-down points. Completed testing has provided justification to reduce loads at cable tie-downs by 45% with additional refinement based on measured cable natural frequencies.

Dutson, Joseph D.

2013-01-01

311

Piecewise cause-specific association analyses of multivariate untied or tied competing risks data.  

PubMed

In this paper we extend the bivariate hazard ratio to multivariate competing risks data and show that it is equivalent to the cause-specific cross hazard ratio. Two approaches are proposed to estimate these two equivalent association measures. One extends the plug-in estimator, and the other adapts the pseudo-likelihood estimator for bivariate survival data to multivariate competing risks data. The asymptotic properties of the extended estimators are established by using empirical processes techniques. The extended plug-in and pseudo-likelihood estimators have comparable performance with the existing U-statistic when the data have no tied events. However, in many applications, there are tied events in which all the three estimators are found to produce biased results. To our best knowledge, we are not aware of any association analysis for multivariate competing risks data that has considered tied events. Hence we propose a modified U-statistic to specifically handle tied observations. The modified U-statistic clearly outperforms the other estimators when there are rounding errors. All methods are applied to the Cache County Study to examine mother-child and sibship associations in dementia among this aging population, where the event times are rounded to the nearest integers. The modified U performs consistently with our simulation results and provides more reliable results in the presence of tied events. PMID:25241735

Wang, Hao; Cheng, Yu

2014-01-01

312

Platelet-Rich Plasma Extract Prevents Pulmonary Edema through Angiopoietin-Tie2 Signaling.  

PubMed

Increased vascular permeability contributes to life-threatening pathological conditions, such as acute respiratory distress syndrome. Current treatments for sepsis-induced pulmonary edema rely on low-tidal volume mechanical ventilation, fluid management, and pharmacological use of a single angiogenic or chemical factor with antipermeability activity. However, it is becoming clear that a combination of multiple angiogenic/chemical factors rather than a single factor is required for maintaining stable and functional blood vessels. We have demonstrated that mouse platelet-rich plasma (PRP) extract contains abundant angiopoietin (Ang) 1 and multiple other factors (e.g., platelet-derived growth factor), which potentially stabilize vascular integrity. Here, we show that PRP extract increases tyrosine phosphorylation levels of Tunica internal endothelial cell kinase (Tie2) and attenuates disruption of cell-cell junctional integrity induced by inflammatory cytokine in cultured human microvascular endothelial cells. Systemic injection of PRP extract also increases Tie2 phosphorylation in mouse lung and prevents endotoxin-induced pulmonary edema and the consequent decreases in lung compliance and exercise intolerance resulting from endotoxin challenge. Soluble Tie2 receptor, which inhibits Ang-Tie2 signaling, suppresses the ability of PRP extract to inhibit pulmonary edema in mouse lung. These results suggest that PRP extract prevents endotoxin-induced pulmonary edema mainly through Ang-Tie2 signaling, and PRP extract could be a potential therapeutic strategy for sepsis-induced pulmonary edema and various lung diseases caused by abnormal vascular permeability. PMID:24960457

Mammoto, Tadanori; Jiang, Amanda; Jiang, Elisabeth; Mammoto, Akiko

2015-01-01

313

The effect of line-tying on the radiative MHD stability of coronal plasmas with radial pressure profile  

Microsoft Academic Search

The role of photospheric line-tying, i.e., solar coronal loop structures, was investigated in terms of the effect on radiative modes and the influence that different radial pressure profiles exert on the effects of line-tying on radiative MHD stability. Energy is assumed dissipated by heat conduction and radiation and zero- and first-order solutions are obtained for the radiative time scales. Line-tying

C.-H. An

1984-01-01

314

Application of Toxicity Identification Evaluation (TIE) procedures for the characterization and management of dredged harbor sediments.  

PubMed

This study refers to the performance of Phase I Toxicity Identification Evaluation (TIE) procedures to identify the contaminants (i.e. organic compounds, metals and ammonia) exerting toxicity in marine sediments from the Pasaia harbor (Oiartzun estuary, northern Spain). The effectiveness of the manipulations to reduce toxicity was proved with the marine amphipod survival test (whole-sediment) and the sea urchin embryo-larval assay (elutriates). By means of TIEs it was concluded that organic compounds were the major contaminants exerting toxicity, although toxic effects by metals was also demonstrated. Additionally, the combination of Phase I treatments allowed to investigate the toxicity changes associated to the mobility of contaminants during dredging activities. Therefore, the performance of TIE procedures as another line of evidence in the decision-making process is recommended. They show a great potential to be implemented at different steps of the characterization and management of dredged harbor sediments. PMID:23465571

Montero, N; Belzunce-Segarra, M J; Gonzalez, J-L; Menchaca, I; Garmendia, J M; Etxebarria, N; Nieto, O; Franco, J

2013-06-15

315

Troll Phase I pipelines: Tie-ins to the subsea tunnel  

SciTech Connect

Subsea approaches to the Norwegian coast are characterized by very rugged topography. Landfall of offshore pipelines therefore often require dedicated subsea tunnel and pipeline tie in concepts. To land the 36 inch and 40 inch offshore pipelines associated with the Troll Phase 1 development, a 4 km long landfall tunnel was constructed terminating at a water depth of 165 m with vertical shaft connections to the seabed. This paper describes the design of the Troll Phase 1 tie-ins of offshore to tunnel pipeline sections. These comprise two main elements, i.e. 180 Te tie-in spools -- which are installed between the offshore pipelines and the piercing shafts -- and prefabricated 450 Te riser bundles -- which are installed into the vertical tunnel piercing shafts.

Hove, F.; Kuhlmann, H.

1995-12-31

316

A determination of the radio-planetary frame tie and the DSN tracking station locations  

NASA Technical Reports Server (NTRS)

The orientation of the reference frame of radio source catalogs relative to that of planetary ephemerides is uncertain by 30 mas (150 nrad). At this level of uncertainty this orientation offset, or 'frame tie', can be a major systematic error source for interplanetary spacecraft orbit determination. This work presents a method of determining the radio-planetary frame tie from a comparison of Very Long Baseline Interferometry (VLBI) and Lunar Laser Ranging (LLR) station coordinate and earth orientation parameter estimates. Preliminary results are presented which indicate that accuracies of 5 mas or better may be achieved with this method. An important by-product of this method of frame tie determination is a set of Deep Space Network (DSN) station locations with 10 cm per component accuracy. This station set is in a geocentric coordinate system with known orientation relative to the radio and planetary frames.

Finger, Mark H.; Folkner, William M.

1990-01-01

317

The angiopoietin/TIE receptor system: Focusing its role for ischemia-reperfusion injury.  

PubMed

Ischemia and reperfusion (I/R) are of fatal consequence for the affected organs, as they provoke a profound inflammatory reaction. This thoroughly destroys cells and tissues, inducing functional failure or even complete loss of organ function. Since I/R is primarily a vascular problem, the interaction between the endothelium and the surrounding environment is of great significance. The angiopoietins (ANG) and the TIE receptors are key players for the vascular homeostasis. This review summarizes biochemical and cellular mechanisms leading to I/R injury. After a brief introduction to the ANG/TIE system, a comprehensive overview of its role for the development of I/R syndrome is given. Finally, current therapeutic approaches to mitigate the consequences of I/R by modulating ANG/TIE signaling are reviewed in detail. PMID:25466648

Hilbert, Tobias; Klaschik, Sven

2014-11-01

318

Orientation of Tie-Lines in the Phase Diagram of DOPC:DPPC:Cholesterol Model Biomembranes  

PubMed Central

We report the direction of tie-lines of coexisting phases in a ternary diagram of DOPC:DPPC:Cholesterol lipid bilayers, which has been a system of interest in the discussion of biological rafts. For coexisting Ld and Lo phases we find that the orientation angle ? of the tie-lines increases as the cholesterol concentration increases and it also increases as temperature increases from T=15 °C to T=30 °C. Results at lower cholesterol concentrations support the existence of a different 2-phase coexistence region of Ld and So phases and the existence of a 3-phase region separating the two 2-phase regions. Our method uses the X-ray lamellar D-spacings observed in oriented bilayers as a function of varying hydration. Although this method does not obtain the ends of the tie-lines, it gives precise values (±1°) of their angles ? in the ternary phase diagram. PMID:20968281

Uppamoochikkal, Pradeep; Tristram-Nagle, Stephanie; Nagle, John F.

2010-01-01

319

The Technology Information Environment with Industry (TIE-In): A mechanism for accessing laboratory solutions  

SciTech Connect

The Technology Information Environment with Industry (TIE-In) is a system that helps users obtain laboratory-developed technical solutions without requiring that they duplicate the technical resources (in people, hardware and software) at the national laboratories. TIE-In is based on providing users with controlled access to distributed laboratory resources that are packaged in intelligent user interfaces. These interfaces help users obtain technical solutions without requiring that the user have specialized technical and computer expertise. As a designated DOE Technology Deployment Center/User Facility, industry users can access a broad range of laboratory-developed technologies on a cost-recovery basis. TIE-In will also be used to share laboratory resources with partners in US industry that help the DOE meet future manufacturing needs for the stewardship of our nation`s nuclear weapons stockpile.

Ang, J.A.; Machin, G.D.; Marek, E.L.

1994-12-31

320

Relief of Residual Stress in Streamline Tie Rods by Heat Treatment  

NASA Technical Reports Server (NTRS)

About two-thirds of the residual stress in cold-worked SAE 1050 steel tie rods was relieved by heating 30 minutes at 600 degrees Fahrenheit. Cold-worked austenitic stainless-steel tie rods could be heated at temperatures up to 1000 degrees Fahrenheit without lowering the important physical properties. The corrosion resistance, in laboratory corrosion test, of straight 18:8 and titanium-treated 18:8 materials appeared to be impaired after heating at temperatures above 800 degrees or 900 degrees fahrenheit. Columbium-treated and molybdenum-treated 18:8 steel exhibited improved stability over a wide range of temperatures. Tie rods of either material could be heated 30 minutes with safety at any temperature up to 1000 degrees Fahrenheit. At this temperature most of the residual stress would be relieved.

Pollard, R E; Reinhart, Fred M

1941-01-01

321

The effect of plasma flow on line-tied magnetohydrodynamic modes  

SciTech Connect

The linear stability of a linear pinch to kink modes with line-tying boundary conditions and equilibrium axial flow is studied. Numerical results in visco-resistive magnetohydrodynamics show that for long plasmas, in which the line-tying stabilization effect is weak, plasma flow is stabilizing. For shorter plasmas, near the length at which line-tying stabilizes the mode for zero flow, the flow can be destabilizing. A simple model using reduced ideal magnetohydrodynamics with a step-function current density and an even simpler one-dimensional sound wave model with equilibrium flow elucidate these effects. It is concluded that: (1) The stabilization in long plasmas is due to convective stabilization; (2) the destabilization for short plasmas can be explained using a picture involving the coupling of two stable waves, one propagating in the forward direction and one in the backward direction; and (3) strong magnetic shear suppresses the flow destabilization for short plasmas.

Arcudi, Francesco [Dipartimento di Energetica, Politecnico di Torino, 10129 Torino (Italy); Delzanno, Gian Luca; Finn, John M. [T-5, Applied Mathematics and Plasma Physics Group, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

2010-06-15

322

Sensitivity of passive microwave sea ice concentration algorithms to the selection of locally and seasonally adjusted tie points  

NASA Technical Reports Server (NTRS)

The sensitivity of passive microwave sea-ice concentration (SIC) algorithms to the selection of tie points was analyzed. SICs were derived with the NASA Team ice algorithm for global tie points and for locally and seasonally adjusted tie points. The SSM/I SIC was then compared to Landsat-MSS-derived SICs. Preliminary results show a mean difference of SSM/I- and Landsat-derived SICs for 50 x 50 km grid cells of 2.7 percent along the ice edge of the Beaufort Sea during fall with local tie points. The accuracy decreased to 9.7 percent when global tie points were used. During freeze-up in the Beaufort Sea, with grey ice and nilas as dominant ice cover, the mean difference was 4.3 percent for local tie points and 13.9 percent for global tie points. For the spring ice cover in the Bering Sea a mean difference of 4.4 percent for local tie points and 15.7 percent for global tie points was found. This large difference reveals some limitations of the NASA-Team algorithm under freeze-up and spring conditions (thin ice areas).

Steffen, Konrad; Schweiger, Axel

1989-01-01

323

Automated manual transmission controller  

DOEpatents

A powertrain system for a hybrid vehicle. The hybrid vehicle includes a heat engine, such as a diesel engine, and an electric machine, which operates as both an electric motor and an alternator, to power the vehicle. The hybrid vehicle also includes a manual-style transmission configured to operate as an automatic transmission from the perspective of the driver. The engine and the electric machine drive an input shaft which in turn drives an output shaft of the transmission. In addition to driving the transmission, the electric machine regulates the speed of the input shaft in order to synchronize the input shaft during either an upshift or downshift of the transmission by either decreasing or increasing the speed of the input shaft. When decreasing the speed of the input shaft, the electric motor functions as an alternator to produce electrical energy which may be stored by a storage device. Operation of the transmission is controlled by a transmission controller which receives input signals and generates output signals to control shift and clutch motors to effect smooth launch, upshift shifts, and downshifts of the transmission, so that the transmission functions substantially as an automatic transmission from the perspective of the driver, while internally substantially functioning as a manual transmission.

Lawrie, Robert E. (Whitmore Lake, MI); Reed, Jr., Richard G. (Royal Oak, MI); Bernier, David R. (Rochester Hills, MI)

1999-12-28

324

Taurine prevents high glucose-induced angiopoietin-2/tie-2 system alterations and apoptosis in retinal microvascular pericytes.  

PubMed

Previously, we confirmed that taurine prevented diabetes-induced apoptosis in retinal glial cells via its anti-oxidation and anti-glutamate excitotoxicity mechanisms. The aim of this study is to investigate the effects of taurine on angiopoietin-2 (Ang-2)/Tie-2 system expressions and apoptosis in high glucose-treated retinal microvascular pericytes (RMPs). Also, the possible mechanism involved in the inhibition of taurine on RMPs apoptosis is investigated. The expressions of Ang-2, Tie-2 were detected by qRT-PCR and ELISA. The level of phosphorylated Tie-2 (P-Tie-2) was examined by ELISA. Hoechst 33342 and Annexin V/PI staining were used to detect RMPs apoptosis. The activity of caspase-3 was detected by assay kit. In 25 mM high glucose group, the expression of Ang-2 was increased significantly, taurine down-regulated Ang-2 in a dose (0.1, 1, and 10 mM)-dependent manner (P < 0.05). The Tie-2 expression and P-Tie-2 level were decreased in high glucose group (P < 0.05). Interestingly, taurine at 1 and 10 mM showed significant increase in Tie-2 expression and P-Tie-2 level (P < 0.05). The number of apoptotic RMPs and the activity of caspase-3 increased in the presence of high glucose (P < 0.05). Treatment with taurine at 1 mM decreased the number of apoptotic RMPs and the activity of caspase-3 (P < 0.05). Blocking antibody and small interfering RNA (siRNA) treatment showed that taurine required Tie-2 to perform its anti-apoptotic effect. Taken together, our data suggest that high glucose-induced Ang-2/Tie-2 system expressions alteration can be reversed by taurine, and that taurine can inhibit high glucose-induced RMPs apoptosis via Tie-2. PMID:25060907

Zeng, Kaihong; Ming, Jian; Yang, Na; Wang, Jing; Yu, Xuemei; Song, Yi; Yang, Yongtao

2014-11-01

325

Fit to be Tied! The Relevance of Ties in Teaching Physical Education: Umpires and Referees Must Decide Plays One Way or the Other, but Games Require No Such Decisive Conclusion  

ERIC Educational Resources Information Center

This article has defended the notion that ties are legitimate results of sport contests and often represent the most accurate measure of relative athletic ability. In this sense, ties fully serve and honor the central purpose of competitive sport. Moreover, the authors discuss the following purposes for this article: (1) it will establish an…

McLaughlin, Douglas W.; Torres, Cesar R.

2005-01-01

326

Between-group behaviour in health care: gaps, edges, boundaries, disconnections, weak ties, spaces and holes. A systematic review  

PubMed Central

Background Gaps are typically regarded as a problem to be solved. People are stimulated to close or plug them. Researchers are moved to fill deficits in the literature in order to realise a more complete knowledge base, health authorities want to bridge policy-practice disconnections, managers to secure resources to remedy shortfalls between poor and idealised care, and clinicians to provide services to patients across the divides of organisational silos. Despite practical and policy work in many health systems to bridge gaps, it is valuable to study research examining them for the insights provided. Structural holes, spaces between social clusters and weak or absent ties represent fissures in networks, located in less densely populated parts of otherwise closely connected social structures. Such gaps are useful as they illustrate how communication potentially breaks down or interactivity fails. This paper discusses empirical and theoretical work on this phenomenon with the aim of analysing a specific exemplar, the structures of silos within health care organisations. Methods The research literature on social spaces, holes, gaps, boundaries and edges was searched systematically, and separated into health [n = 13] and non-health [n = 55] samples. The health literature was reviewed and synthesised in order to understand the circumstances between stakeholders and stakeholder groups that both provide threats to networked interactions and opportunities to strengthen the fabric of organisational and institutional inter-relationships. Results The research examples illuminate various network structure characteristics and group interactions. They explicate a range of opportunities for improved social and professional relations that understanding structural holes, social spaces and absent ties affords. A principal finding is that these kinds of gaps illustrate the conditions under which connections are strained or have been severed, where the limits of integration between groups occurs, the circumstances in which social spaces are or need to be negotiated and the way divides are bridged. The study's limitations are that it is bounded by the focus of attention and the search terms used and there is yet to be developed a probabilistic, predictive model for gaps and how to connect them. Conclusions Gaps offer insights into social structures, and how real world behaviours of participants in workplaces, organisations and institutions are fragile. The paper highlights the circumstances in which network disjunctures and group divides manifest. Knowledge of these phenomenon provides opportunities for working out ways to improve health sector organisational communications, knowledge transmission and relationships. PMID:21134295

2010-01-01

327

Motivation vs. relevance: Using strong ties to find a job in Urban China  

E-print Network

While the idea that contacts matter in finding a job is intuitively appealing, we still do not know—after decades of research—how and why strong ties benefit job seekers. To resolve this confusion, we need to theorize how ...

Obukhova, Elena

328

Project TIES: Towards Inclusion in Early Settings Model Demonstration Project. Final Report.  

ERIC Educational Resources Information Center

This final report describes the activities and outcomes of Project TIES (Towards Inclusion in Early Education), a federally funded demonstration model training program designed to enhance the abilities of child care providers and trainers to include young children, birth to five, with disabilities in developmentally appropriate child care…

Willis, Clarissa A.

329

Guilt by Association: United States Ties and Vulnerability to Transnational Terrorist Attacks  

E-print Network

arena to force the more powerful nation to change its policy stance. Focusing on the United States, I examine how a nation's economic and foreign policy ties to the U.S. affect its vulnerability to transnational terrorist attacks. I test my expectations...

Warhol, Matthew Grant

2011-02-22

330

CIVIL ENGINEERING "Our future as a nation will be closely tied to space, energy, the  

E-print Network

CIVIL ENGINEERING Memphisat "Our future as a nation will be closely tied to space, energy, the environment, and our ability to interact with and compete in the global economy. As a civil engineer, you, or management ­ civil engineering offers you a wide range of career choices." -American Society of Civil

Dasgupta, Dipankar

331

Overview of UIUC's Concrete Cross-tie and Fastening System Laboratory Study  

E-print Network

measurement (strain gauges) · Deflection measurement (LVDT/potentiometers) · Load transfer measurement (load area to measure the load transfer from rail base to concrete tie · 3x3 or 2x2 strain gauge patterns instrumentation objectives: ­ Develop instrumentation plan to measure forces at critical interfaces (pad

Barkan, Christopher P.L.

332

Local search for stable marriage problems with ties and incomplete lists  

E-print Network

Local search for stable marriage problems with ties and incomplete lists M. Gelain1 , M. S. Pini1, Australia, Email: Toby.Walsh@nicta.com.au Abstract. The stable marriage problem has a wide variety, or more generally to any two-sided market. We consider a useful variation of the stable marriage problem

Rossi, Francesca

333

Analysis and computation of a least-squares method for consistent mesh tying  

NASA Astrophysics Data System (ADS)

In the finite element method, a standard approach to mesh tying is to apply Lagrange multipliers. If the interface is curved, however, discretization generally leads to adjoining surfaces that do not coincide spatially. Straightforward Lagrange multiplier methods lead to discrete formulations failing a first-order patch test [T.A. Laursen, M.W. Heinstein, Consistent mesh-tying methods for topologically distinct discretized surfaces in non-linear solid mechanics, Internat. J. Numer. Methods Eng. 57 (2003) 1197-1242]. This paper presents a theoretical and computational study of a least-squares method for mesh tying [P. Bochev, D.M. Day, A least-squares method for consistent mesh tying, Internat. J. Numer. Anal. Modeling 4 (2007) 342-352], applied to the partial differential equation -[backward difference]2[phi]+[alpha][phi]=f. We prove optimal convergence rates for domains represented as overlapping subdomains and show that the least-squares method passes a patch test of the order of the finite element space by construction. To apply the method to subdomain configurations with gaps and overlaps we use interface perturbations to eliminate the gaps. Theoretical error estimates are illustrated by numerical experiments.

Day, David; Bochev, Pavel

2008-08-01

334

Tongue-Tied: The Lives of Multilingual Children in Public Education  

ERIC Educational Resources Information Center

Tongue-Tied is an anthology that gives voice to millions of people who, on a daily basis, are denied the opportunity to speak in their own language. First-person accounts by Amy Tan, Sherman Alexie, Bell Hooks, Richard Rodriguez, Maxine Hong Kingston, and many other authors open windows into the lives of linguistic minority students and their…

Santa Ana, Otto

2004-01-01

335

Cancer sequencing initiative discovers mutations tied to aggressive childhood brain tumors  

Cancer.gov

Researchers studying a rare, lethal childhood tumor of the brainstem discovered that nearly 80 percent of the tumors have mutations in genes not previously tied to cancer. Early evidence suggests the alterations play a unique role in other aggressive pediatric brain tumors as well.

336

Social Ties and Cognitive Recovery after Stroke: Does Social Integration Promote Cognitive Resilience?  

Microsoft Academic Search

Background\\/Aims: Little is known about the possible effects of social resources on stroke survivors’ level and change in cognitive outcomes. Understanding this association may help us identify strategies to improve stroke recovery and help elucidate the etiology of dementia. Methods: We examined the relationship of social ties and social support to cognitive function and cognitive change 6 months after stroke.

M. Maria Glymour; Jennifer Weuve; Martha E. Fay; Thomas Glass; Lisa F. Berkman

2008-01-01

337

Amygdala Subregions Tied to SSRI and Placebo Response in Patients with Social Anxiety Disorder  

E-print Network

Amygdala Subregions Tied to SSRI and Placebo Response in Patients with Social Anxiety Disorder reuptake inhibitors (SSRIs) and placebo seem to induce anxiolytic effects by attenuating amygdala of responders and nonresponders is insufficiently characterized and it remains unknown whether SSRIs and placebo

338

Positive Cross-Regulatory Loop Ties GATA-3 to Estrogen Receptor A Expression in Breast Cancer  

E-print Network

Positive Cross-Regulatory Loop Ties GATA-3 to Estrogen Receptor A Expression in Breast Cancer Je, the functional role of GATA-3 in ERA- positive breast cancers is yet to be established. Here, we show that GATA-3 is required for estradiol stimulation of cell cycle progression in breast cancer cells. The role of GATA-3

Brown, Myles

339

Language of the People Forever: Bay Mills Spins Thread Tying Ojibwa Communities Together  

ERIC Educational Resources Information Center

Why would anyone want to spend thousands of hours away from home and pay hundreds of dollars in tuition to acquire one of the world's most difficult languages? For Anishinaabe people, that is an easy question to answer. The Ojibwe language is the thread that ties communities together and unites all Anishinaabe as one people sharing a common…

Austin, Brenda

2008-01-01

340

Ideal Kink Modes In a Line-Tied Screw Pinch With Finite Plasma Pressure*  

NASA Astrophysics Data System (ADS)

A new method for computing ideal magnetohydrodynamic linear eigenmodes in a cylindrical screw pinch with line-tying boundary conditions is presented. In this method, plasma volume is reflected over one of the end plates, and equations and field components are continued on the extended volume with the continuation rules prescribed by the line-tying boundary conditions. Field components in the combined volume are expanded in Fourier series in the axial coordinate. The resulting set of coupled differential equations is solved numerically in the radial coordinate yielding growth rates and eigenmodes for the system. Example of an m=1 (m is poloidal mode number) internal kink instability in force-free plasma equilibrium with uniform pressure is considered. In contrast to a periodic screw pinch, marginally stable perturbations are essentially compressible in line-tied geometry. Finite compressibility makes the mode more stable in addition to usual line-tying stabilization in zero pressure plasma. The critical length corresponding to marginal stability increases with the increase of plasma beta. A universal axial dependence for marginally stable density perturbations ?(r, z) = ?(r) exp(- i z / q(r)) is predicted analytically and confirmed numerically (q = r Bz/B? ). The work was supported by the U.S. D.O.E. and N.S.F.

Mirnov, V. V.; Svidzinski, V. A.; Li, H.

2008-11-01

341

m =1 ideal kink modes in a line-tied screw pinch with finite plasma pressure  

NASA Astrophysics Data System (ADS)

A new method for computing ideal magnetohydrodynamic linear eigenmodes in a cylindrical screw pinch with line-tying boundary conditions at the axial ends is presented. In this method, plasma volume is reflected over one of the end planes, and equations and field components are continued into the extended volume with the continuation rules prescribed by the line-tying boundary conditions. Field components in the combined volume are expanded in Fourier series in the axial coordinate. The resulting set of coupled differential equations is solved numerically in the radial coordinate by a finite difference method yielding growth rates and eigenmodes for the system. An example of an m =1 (m is the poloidal wave number) internal kink instability in a force-free plasma equilibrium with uniform pressure is considered. In contrast to a periodic screw pinch, marginally stable perturbations are essentially compressible in the line-tied geometry. Finite compressibility makes the mode more stable in addition to the usual line-tying stabilization in zero pressure plasma. The critical length corresponding to the marginal stability increases with the increase of plasma beta. A universal axial dependence for marginally stable density perturbations ?(r ,z)=?(r)exp[-iz?(r)] is predicted analytically and confirmed numerically, where ?(r ) depends on the equilibrium magnetic field components as ?(r )=B¯?/rB¯z.

Svidzinski, V. A.; Mirnov, V. V.; Li, H.

2008-09-01

342

Mexican American Protest, Ethnic Resiliency and Social Capital: The Mobilization Benefits of Cross-Cutting Ties  

ERIC Educational Resources Information Center

Using terms like free spaces and havens, conventional wisdom views social ties by subordinate groups to dominant group members as hindering protest participation. In contrast, we draw on ethnic resiliency and social capital perspectives and argue that there are mobilization benefits to having dominant group members as friends. We offer a unique…

Santoro, Wayne A.; Velez,, Maria B.; Keogh, Stacy M.

2012-01-01

343

Career Goal-Related Social Ties during Two Educational Transitions: Antecedents and Consequences  

ERIC Educational Resources Information Center

This study examined adolescents' career goal-related social ties during the transition from compulsory to post-compulsory education and during transition from post-compulsory education to working-life or further studies. A total of 687 Finnish adolescents aged 15-16 were surveyed of whom 654 also participated at the second measurement point one…

Tynkkynen, Lotta; Nurmi, Jari-Erik; Salmela-Aro, Katariina

2010-01-01

344

Sediment toxicity identification evaluation (TIE) studies at marine sites suspected of ordnance contamination  

USGS Publications Warehouse

A sediment quality assessment survey and subsequent toxicity identification evaluation (TIE) study was conducted at several sites in Puget Sound, Washington. The sites were previously suspected of contamination with ordnance compounds. The initial survey employed sea urchin porewater toxicity tests to locate the most toxic stations. Sediments from the most toxic stations were selected for comprehensive chemical analyses. Based on the combined information from the toxicity and chemical data, three adjacent stations in Ostrich Bay were selected for the TIE study. The results of the phase I TIE suggested that organics and metals were primarily responsible for the observed toxicity in the sea urchin fertilization test. In addition to these contaminants, ammonia was also contributing to the toxicity for the sea urchin embryological development test. The phase II TIE study isolated the majority of the toxicity in the fraction containing nonpolar organics with high log Kow, but chemical analyses failed to identify a compound present at a concentration high enough to be responsible for the observed toxicity. The data suggest that some organic or organometallic contaminant(s) that were not included in the comprehensive suite of chemical analyses caused the observed toxicological responses.

Carr, R.S.; Nipper, M.; Biedenbach, J.M.; Hooten, R.L.; Miller, K.; Saepoff, S.

2001-01-01

345

Place of Origin, Types of Ties, and Support Networks in Mexico-U.S. Migration  

ERIC Educational Resources Information Center

Previous studies explored how urban or rural place of origin influences the source of social capital. There remains a need to consider how the place of origin affects the type of ties--family, friends, or "paisanos" (countrymen)--with those who provide support to migrants. We use data from the Mexican Migration Project (MMP128) and perform…

Flores-Yeffal, Nadia Y.; Aysa-Lastra, Maria

2011-01-01

346

Social Tie Characteristics and Psychiatric Rehabilitation Outcomes among Adults with Serious Mental Illness  

ERIC Educational Resources Information Center

Social support has achieved national attention as a key component of the mental health recovery paradigm for persons with serious mental illness (SMI). The aim of this study was to investigate the amount of variance accounted for by four social tie characteristics (social network orientation, emotional support, tangible support, and negative…

Chou, Chih-Chin; Chronister, Julie Ann

2012-01-01

347

Watershed by image foresting transform, tie-zone, and theoretical relationships with  

E-print Network

Watershed by image foresting transform, tie-zone, and theoretical relationships with other watershed denitions Romaric Audigier and Roberto de A. Lotufo Faculdade de Engenharia Elétrica e de@dca.fee.unicamp.br, lotufo@unicamp.br Abstract To better understand the numerous solutions related to watershed transform (WT

Cord, Aurélien

348

Design and test of the titanium alloy tie rods for the CMS coil suspension system  

Microsoft Academic Search

The Compact Muon Solenoid (CMS) is one of the general-purpose detectors to be provided for the LHC project at CERN. The design field of the CMS superconducting magnet is 4 T, the magnetic length is 12.5 m and the free bore is 6 m. Thirty titanium alloy tie rods are used to support the 225 tonne weight of the cold

B. Levesy; H. Gerwig; F. Kircher; M. Reytier

2002-01-01

349

From Gut Knowing: Every Silver Cloud Has a Black Lining. Actor Reflections on "Ties That Bind."  

ERIC Educational Resources Information Center

Makes sense of the performance of Steve Taylor's play, "Ties That Bind," from the perspective of the actors, 14 faculty members, and doctoral students from various universities in the United States by using the interpretive lens of Erving Goffman's Presentation of Self in Everyday Life. (SG)

Elmes, Michael

2003-01-01

350

Performance of A Fuzzy Power System Stabilizer With Tie Line Active Power Deviation Feedback  

Microsoft Academic Search

This paper reports the application of a new input signal based fuzzy power system stabilizer in multi-machine environment. Instead of conventional input pairs like speed deviation (Deltaomega) and acceleration (Deltaomegadot) or speed deviation and accelerating power deviation of each machine, in this paper, deviation of active power through the tie line connecting two areas is used as one of the

P. Mitra; S. P. Chowdhury; S. K. Pal; R. N. Lahiri; Y. H. Song

2006-01-01

351

Transnational Ties, Poverty, and Identity: Latin American Immigrant Women in Public Housing  

ERIC Educational Resources Information Center

This study used ethnographic data to examine the nature and functions of transnational relationships of low-income Latin American women who had immigrated to the United States and were living in areas of extreme poverty. Findings indicated that these Latin American mothers utilized transnational ties to help maintain the cultural identities of…

Dominguez, Silvia; Lubitow, Amy

2008-01-01

352

Children in Residential Group Care with No Family Ties: Facing Existential Aloneness  

ERIC Educational Resources Information Center

The issue of children living in residential group care in Israel completely without family ties is studied in order to explore the feelings of staff and uncover possible characteristics of these children. Data were collected through focus groups, questionnaires, and life stories of children who left group care at 18 years of age. Results reveal…

Dvir, Orly; Weiner, Anita; Kupermintz, Hagai

2012-01-01

353

The Ties That Bond: Re-Examining the Relationship between Facebook Use and Bonding Social Capital  

E-print Network

The Ties That Bond: Re-Examining the Relationship between Facebook Use and Bonding Social Capital network of Friends. The relationship between Facebook use and perceived bonding social capital, however) and a measure of bonding social capital that focuses on benefits accrued locally, i.e., within a university

Michigan, University of

354

Laboratory Testing to Address the Potential for Damaging Hydraulic Pressure in the Concrete Tie Rail Seat  

E-print Network

Rail Seat TRB 11-3395 Submitted for publication in the proceedings of the Transportation Research Board@illinois.edu 3 Corresponding author #12;Zeman et al. 11-3395 1 ABSTRACT Rail seat deterioration (RSD water pressure in a laboratory rail seat using tie pads of differing material composition and geometry

Illinois at Urbana-Champaign, University of

355

Rat liver microsomal desaturase activi-ties during undernutrition. N Narce 1,2,N Narce  

E-print Network

Rat liver microsomal desaturase activi- ties during undernutrition. N Narce 1,2,N Narce JP Poisson in the rat liver these enzyme activities dur- ing a 40- and 60-d diet restriction period. Ten control Wistar activities were determined by incubation of liver microsomes in the presence of appropriate labelled

Paris-Sud XI, Université de

356

An improved tie force method for progressive collapse resistance design of reinforced concrete frame structures  

Microsoft Academic Search

Progressive collapse of structures refers to local damage due to occasional and abnormal loads, which in turn leads to the development of a chain reaction mechanism and progressive and catastrophic failure. The tie force (TF) method is one of the major design techniques for resisting progressive collapse, whereby a statically indeterminate structure is designed through a locally simplified determinate structure

Yi Li; Xinzheng Lu; Hong Guan; Lieping Ye

2011-01-01

357

Axis offset of VLBI antenna from local tie measurements in Metsähovi  

NASA Astrophysics Data System (ADS)

We have determined the local tie between IGS station METS and VLBI antenna reference point with kinematic GPS measurements regularly during the geo-VLBI campaigns since December 2008. Because the first experimental campaigns gave promising results, we have continued the measurements during every VLBI campaign. Besides the coordinates of the reference point we estimate also the axes offset and the orientation of the antenna for every campaign. We have developed a procedure to produce daily local ties with a daily axis offsets and antenna orientations. The antenna axis offset estimated from the local tie measurements differs from the offset now used as a constant in VLBI data processing. The systematic error in axis offset may be one of the reasons for discrepancies between TRFs. We present the procedure to calculate the axis offset, and our results of offset values. We have performed the analysis of GeoVLBI sessions to define the effect of axes offset value on estimation of VLBI antenna coordinates. The comparison of solutions obtained with two different axes offset value is shown. In the analysis, we take axes offset value, which is currently used in VLBI data processing and the value estimated from local tie measurements.

Kallio, Ulla; Zubko, Nataliya

2013-04-01

358

Tying the Yellow Ribbon: How School Psychologists and Educators Can Support Military Families  

ERIC Educational Resources Information Center

Tying a yellow ribbon around the tree in one's front yard or placing a magnet on one's car is more than just a show of support. It is a promise to American military around the world that one is ready and able to support them in their time of need just as they have supported the country. Educators, including school psychologists, are especially…

Anweiler, Justin

2008-01-01

359

Non-Equilibrium and Current Sheet Formation in Line-Tied  

E-print Network

Non-Equilibrium and Current Sheet Formation in Line-Tied Magnetic Fields: Heating of the Solar in a magnetic non-equilibrium Parker's model (1972): Non-equilibrium driven by complex photospheric motions. i.e. surfaces of tangential discontinuities separating regions of quasi-equilibrium · Photospheric motion has

Ng, Chung-Sang

360

The Tie That Binds? Coherence Among Emotion Experience, Behavior, and Physiology  

E-print Network

The Tie That Binds? Coherence Among Emotion Experience, Behavior, and Physiology Iris B. Mauss-individual associations among experiential, facial behavioral, and peripheral physiological responses during emotional, and physiological responses were measured second-by-second during a film that induced amusement and sadness. Results

Gross, James J.

361

Hands On Science with NOAA TITLE: Tying Science to History... Making Rope by Hand  

E-print Network

Hands ­ On Science with NOAA TITLE: Tying Science to History... Making Rope by Hand OVERVIEW string to hang household items, to ropes to rig the sails and mooring lines in ships, to the steel cables is fascinating! Research and discuss the development of rope-making technology through human history. · Research

362

A Microstrip-Fed Modified Printed Bow-Tie Antenna For Simultaneous Operation In The C and X-Bands  

E-print Network

pattern suitable for integration in single and dual polarized phased array systems. The antenna exhibitsA Microstrip-Fed Modified Printed Bow-Tie Antenna For Simultaneous Operation In The C and X. Smith, The University of Mississippi Key Words: Wideband Antennas, Bow-Tie Antennas, Phased Array

Elsherbeni, Atef Z.

363

Repulsive interaction of N eel walls, and the internal length scale of the cross{tie wall  

E-print Network

Repulsive interaction of N#19;eel walls, and the internal length scale of the cross{tie wall;eel walls and cross{tie walls are two structures commonly seen in ferro- magnetic thin #12;lms studies (a) the repulsive interaction of one{dimensional N#19;eel walls; and (b) the inter- nal length

Otto, Felix

364

Finite element analyses of continuous filament ties for masonry applications:final report for the Arquin Corporation.  

SciTech Connect

Finite-element analyses were performed to simulate the response of a hypothetical masonry shear wall with and without continuous filament ties to various lateral loads. The loads represented three different scenarios: (1) 100 mph wind, (2) explosive attack, and (3) an earthquake. In addition, a static loading analysis and cost comparison were performed to evaluate optimal materials and designs for the spacers affixed to the filaments. Results showed that polypropylene, ABS, and polyethylene (high density) were suitable materials for the spacers based on performance and cost, and the short T-spacer design was optimal based on its performance and functionality. Results of the shear-wall loading simulations revealed that simulated walls with the continuous filament ties yielded factors of safety that were at least ten times greater than those without the ties. In the explosive attack simulation (100 psi), the simulated wall without the ties failed (minimum factor of safety was less than one), but the simulated wall with the ties yielded a minimum factor of safety greater than one. Simulations of the walls subject to lateral loads caused by 100 mph winds (0.2 psi) and seismic events with a peak ground acceleration of 1 ''g'' (0.66 psi) yielded no failures with or without the ties. Simulations of wall displacement during the seismic scenarios showed that the wall with the ties resulted in a maximum displacement that was 20% less than the wall without the ties.

Quinones, Armando (Arquin Corporation, La Luz, NM); Bibeau, Tiffany A.; Ho, Clifford Kuofei

2006-06-01

365

30 CFR 585.223 - What does BOEM do if there is a tie for the highest bid?  

Code of Federal Regulations, 2013 CFR

...2013-07-01 2013-07-01 false What does BOEM do if there is a tie for the highest bid? 585.223 Section 585.223 Mineral...Award Process § 585.223 What does BOEM do if there is a tie for the highest bid? (a) Unless otherwise...

2013-07-01

366

Probabilistic Reliability Based Tie Line Capacity for Interconnecting Power Systems of South Korea, North Korea and Far East Russia  

Microsoft Academic Search

This paper illustrates to determinate how much is the reasonable capacity of tie lines in view point of probabilistic reliability in the North East Asia by using the tie line constrained equivalent assisting generator model (TEAG), which has been already developed by authors. A reliability evaluation program, it is named, NEAREL, based on the TEAG model was made. The reliability

Jaeseok Choi; Trungtinh Tran; Jungji Kwon; Dongwook Park; Jaeyoung Yoon; Seungil Moon; Junmin Cha; Roy Billinton

2006-01-01

367

Design and Construction of an Array of Vertically Oriented Bow-Tie Antennas for a New Generation of Radio Telescopes  

Microsoft Academic Search

In this paper an array of vertically oriented bow-tie antennas is described. This array is part of the One Square Meter Array (OSMA): A demonstrator phased array system (receive only) with mixed RF and digital beamforming. OSMA consists of 64 active vertical bow-tie elements surrounded by 80 dummy (passive) elements. The scan performance of the array was measured and simulated.

M. J. Arts; A. B. Smolders

1999-01-01

368

Method for evaluating bow tie filter angle-dependent attenuation in CT: Theory and simulation results  

SciTech Connect

Purpose: Dosimetry in computed tomography (CT) is increasingly based on Monte Carlo studies that define the dose in the patient (in mGy) as a function of air kerma (free in air) at isocenter (mGy). The accuracy of Monte Carlo studies depends in part on the accuracy of the characterization of the bow tie filter for a given CT scanner model. A simple method for characterizing the bow tie filter attenuation profile in CT scanners would therefore be very useful. The theory behind such a method is proposed. Methods: A measurement protocol is discussed mathematically and demonstrated using computer simulation. The proposed method requires the placement of a radiation monitor at the periphery of the CT field, and the time domain signal (kerma rate versus time) is measured with good temporal resolution ({approx}200 Hz or better) and with all other objects (e.g., patient couch) retracted from the field of view. Knowledge of the source to isocenter distance (or alternately, the isocenter to probe distance) is required. The stationary detector records the kerma rate versus time signal as the gantry rotates through several revolutions. From this temporal data, signal processing techniques are used to extract in-phase peaks, as well as out-of-phase kerma rate levels. From these data, the distance from isocenter to the probe can be determined (or, alternatively, the source to isocenter distance), and the angle-dependent bow tie filter attenuation can be computed. By measuring the angle-dependent bow tie filter attenuation at several kVp settings, the bow tie composition versus fan angle can be computed using basis decomposition techniques. Results: The simulations illustrated that with 2% added noise in the kerma rate versus time signal, the attenuation properties of a hypothetical two component (aluminum and polymethyl methacrylate) bow tie filter could be determined (r{sup 2}>0.99). Although the computed basis material thicknesses were not exactly equal to the actual thicknesses, their combined attenuation factors matched that of the actual filter across kVp's to within an average of 0.057%. Conclusions: It is concluded that the proposed method may provide a simple noninvasive approach to characterizing the performance of bow tie filters in CT systems; however, experimental validation is necessary.

Boone, John M. [Department of Radiology and Department of Biomedical Engineering, UC Davis Medical Center, University of California, Davis, 4860 Y Street, Suite 3100, Sacramento, California 95817 (United States)

2010-01-15

369

The effect of line-tying on the radiative MHD stability of coronal plasmas with radial pressure profile  

NASA Astrophysics Data System (ADS)

The role of photospheric line-tying, i.e., solar coronal loop structures, was investigated in terms of the effect on radiative modes and the influence that different radial pressure profiles exert on the effects of line-tying on radiative MHD stability. Energy is assumed dissipated by heat conduction and radiation and zero- and first-order solutions are obtained for the radiative time scales. Line-tying is a magnetic tension in the zero-order MHD mode and produces stability. Heat conduction occurs along bent field lines in first-order MHD modes when plasmas cross the field lines. Irradiated cool-core loops can experience MHD instabilities in the cylinder center, while line-tying can stabilize the plasma in the surrounding hot medium. Line-tying also adds stability to magnetosonic and condensation modes.

An, C.-H.

1984-09-01

370

Development and Testing of a Prototype Grid-Tied Photovoltaic Power System  

NASA Technical Reports Server (NTRS)

The NASA Glenn Research Center (GRC) has developed and tested a prototype 2 kW DC grid-tied photovoltaic (PV) power system at the Center. The PV system has generated in excess of 6700 kWh since operation commenced in July 2006. The PV system is providing power to the GRC grid for use by all. Operation of the prototype PV system has been completely trouble free. A grid-tied PV power system is connected directly to the utility distribution grid. Facility power can be obtained from the utility system as normal. The PV system is synchronized with the utility system to provide power for the facility, and excess power is provided to the utility. The project transfers space technology to terrestrial use via nontraditional partners. GRC personnel glean valuable experience with PV power systems that are directly applicable to various space power systems, and provide valuable space program test data. PV power systems help to reduce harmful emissions and reduce the Nation s dependence on fossil fuels. Power generated by the PV system reduces the GRC utility demand, and the surplus power aids the community. Present global energy concerns reinforce the need for the development of alternative energy systems. Modern PV panels are readily available, reliable, efficient, and economical with a life expectancy of at least 25 years. Modern electronics has been the enabling technology behind grid-tied power systems, making them safe, reliable, efficient, and economical with a life expectancy of at least 25 years. Based upon the success of the prototype PV system, additional PV power system expansion at GRC is under consideration. The prototype grid-tied PV power system was successfully designed and developed which served to validate the basic principles described, and the theoretical work that was performed. The report concludes that grid-tied photovoltaic power systems are reliable, maintenance free, long life power systems, and are of significant value to NASA and the community.

Eichenberg, Dennis J.

2009-01-01

371

Transmission Modulator/demodulator --  

E-print Network

ELEC3028 Digital Transmission -- MODEM S Chen Revision of Lecture 3 . Modulator -- Carrier recovery and timing recovery This lecture: bits map # symbols MODEM components pulse shaping Tx several bits into a symbol? 40 #12; ELEC3028 Digital Transmission -- MODEM S Chen Bits to Symbols

Chen, Sheng

372

Transmission Line Security Monitor  

ScienceCinema

The Transmission Line Security Monitor is a multi-sensor monitor that mounts directly on high-voltage transmission lines to detect, characterize and communicate terrorist activity, human tampering and threatening conditions around support towers. For more information about INL's critical infrastructure protection research, visit http://www.facebook.com/idahonationallaboratory.

None

2013-05-28

373

Radio Transmission Measurements  

Microsoft Academic Search

The paper divides naturally into three sections. The first section briefly analyses the radio transmission circuit into (a) the sending or radiating portion, (b) the transmitting portion consisting of the ether path thru which the radiated waves travel, and (c) the receiving portion. The relation of these from the standpoint of the radio transmission engineer is discussed, pointing out the

R. Bown; C. R. Englund; H. T. Friis

1923-01-01

374

Transmission Line Security Monitor  

SciTech Connect

The Transmission Line Security Monitor is a multi-sensor monitor that mounts directly on high-voltage transmission lines to detect, characterize and communicate terrorist activity, human tampering and threatening conditions around support towers. For more information about INL's critical infrastructure protection research, visit http://www.facebook.com/idahonationallaboratory.

None

2011-01-01

375

Global TIE Observatories: Real Time Observational Astronomy Through a Robotic Telescope Network  

NASA Astrophysics Data System (ADS)

Astronomy in grades K-12 is traditionally taught (if at all) using textbooks and a few simple hands-on activities. Teachers are generally not trained in observational astronomy techniques and are unfamiliar with the most basic astronomical concepts. In addition, most students, by High School graduation, will never have even looked through the eyepiece of a telescope. The problem becomes even more challenging in inner cities, remote rural areas and low socioeconomic communities where educational emphasis on topics in astronomy as well as access to observing facilities is limited or non existent. Access to most optical telescope facilities is limited to monthly observing nights that cater to a small percentage of the general public living near the observatory. Even here, the observing experience is a one-time event detached from the process of scientific enquiry and sustained educational application. Additionally, a number of large, "research grade" observatory facilities are largely unused, partially due to the slow creep of light pollution around the facilities as well as the development of newer, more capable telescopes. Though cutting edge science is often no longer possible at these sights, real research opportunities in astronomy remain numerous for these facilities as educational tools. The possibility now exists to establish a network of research grade telescopes, no longer useful to the professional astronomical community, that can be made accessible through classrooms, after school, and community based programs all across the country through existing IT technologies and applications. These telescopes could provide unparalleled research and educational opportunities for a broad spectrum of students and turns underutilized observatory facilities into valuable, state-of-the-art teaching centers. The NASA sponsored Telescopes In Education project has been wildly successful in engaging the K-12 education community in real-time, hands-on, interactive astronomy activities. Hundreds of schools in the US, Australia, Canada, England, and Japan have participated in the TIE program, remotely controlling the 24-inch telescope at the Mount Wilson Observatory from their classrooms. In recent years, several (approximately 20 to date) other telescopes have been, or are in the process of being, outfitted for remote use as TIE affiliates. Global TIE integrates these telescopes seamlessly into one virtual observatory and provides the services required to operate this facility, including a scheduling service, tools for data manipulation, an online proposal review environment, an online "Virtual TIE Student Ap J" for publication of results, and access to related educational materials provided by the TIE community. This presentation describes the Global TIE Observatory data and organizational systems and details the technology, partnerships, operational capabilities, science applications, and learning opportunities that this powerful virtual observatory network will provide.

Clark, G.; Mayo, L. A.

2001-12-01

376

Tractor Transmissions. A Teaching Reference.  

ERIC Educational Resources Information Center

The manual was developed as a reference for teaching students about transmissions in farm tractors. The manual is divided into five sections: (1) transmission history, (2) gears and bearings in transmission, (3) sliding-gear transmissions, (4) planetary gearing, and (5) glossary. The working principles of the sliding-gear transmission, the most…

American Association for Agricultural Engineering and Vocational Agriculture, Athens, GA.

377

Religious and Non-religious Activity Engagement as Assets in Promoting Social Ties Throughout University: The Role of Emotion Regulation.  

PubMed

Emerging adulthood is a time of many changes. For example, one change that occurs for a subset of emerging adults is leaving home and starting university. Importantly, the creation of social ties can aid in promoting positive adjustment during university. This study investigated whether involvement in religious activities promotes social ties among university students directly and/or indirectly through emotion regulation. Importantly, involvement in religious activities may promote self-regulatory skills, and the ability to effectively regulate emotions can aid in navigating social interactions. To rule out potentially important confounding variables, spirituality and involvement in non-religious clubs were statistically controlled in all analyses. The participants included 1,132 university students (70.5 % female) from a university in Ontario, Canada who were surveyed each year over a period of 3 years. The results indicated that involvement in religious activities indirectly predicted more social ties over time through emotion regulation. Spirituality did not predict social ties or emotion regulation. Furthermore, non-religious clubs directly predicted more social ties over time. Thus, although involvement in religious and non-religious activities both predicted more social ties in a university setting over time, the mechanism by which these activities promote social ties differed. PMID:25323829

Semplonius, Thalia; Good, Marie; Willoughby, Teena

2014-10-17

378

Use of marine TIE methods in determining causes of toxicity to fish in a public marine aquarium  

SciTech Connect

Aquarium personnel observed that a number of organisms in the coral reef tank were succumbing to fungal and other diseases. It was suspected that organisms were compromised due to a common environmental stressor because many types of fish were affected. One possible stressor was the home-made painted coral decor in the tank. The coral reef decor was crumbling in several sections of the display and release of toxic agents was suspected. A water sample containing broken pieces of the decor was shipped to the lab and a TIE performed. Phase 1 TIE results indicated that toxicity to Mysidopsis bahia (mysid shrimp) was removed after EDTA addition and to some extent after cation exchange column treatment.None of the other TIE manipulations affected toxicity. Metal analyses indicated high concentrations of Zn, Cu, Ni, and Cd. To rule out the possibility of pathogens, irradiation was conducted as a novel TIE method. Results of further identification and confirmation methods using differing cation exchange column treatment. None of the other TIE manipulations affected toxicity. Metal analyses indicated high concentrations of Zn, Cu, Ni, and Cd. To rule out the possibility of pathogens, irradiation was conducted as a novel TIE method. Results of further identification and confirmation methods using differing cation exchange columns will be presented. This study demonstrates a unique application of TIE methods.

Ho, K.T.; Kuhn, A.; Burgess, R.M.; Pelletier, M. [Environmental Protection Agency, Narragansett, RI (United States); Charles, J. [Science Application International Corp., Narragansett, RI (United States)

1995-12-31

379

Twist1 controls lung vascular permeability and endotoxin-induced pulmonary edema by altering Tie2 expression.  

PubMed

Tight regulation of vascular permeability is necessary for normal development and deregulated vascular barrier function contributes to the pathogenesis of various diseases, including acute respiratory distress syndrome, cancer and inflammation. The angiopoietin (Ang)-Tie2 pathway is known to control vascular permeability. However, the mechanism by which the expression of Tie2 is regulated to control vascular permeability has not been fully elucidated. Here we show that transcription factor Twist1 modulates pulmonary vascular leakage by altering the expression of Tie2 in a context-dependent way. Twist1 knockdown in cultured human lung microvascular endothelial cells decreases Tie2 expression and phosphorylation and increases RhoA activity, which disrupts cell-cell junctional integrity and increases vascular permeability in vitro. In physiological conditions, where Ang1 is dominant, pulmonary vascular permeability is elevated in the Tie2-specific Twist1 knockout mice. However, depletion of Twist1 and resultant suppression of Tie2 expression prevent increase in vascular permeability in an endotoxin-induced lung injury model, where the balance of Angs shifts toward Ang2. These results suggest that Twist1-Tie2-Angs signaling is important for controlling vascular permeability and modulation of this mechanism may lead to the development of new therapeutic approaches for pulmonary edema and other diseases caused by abnormal vascular permeability. PMID:24023872

Mammoto, Tadanori; Jiang, Elisabeth; Jiang, Amanda; Lu, Yongbo; Juan, Aimee M; Chen, Jing; Mammoto, Akiko

2013-01-01

380

Native leaf-tying caterpillars influence host plant use by the invasive Asiatic oak weevil through ecosystem engineering.  

PubMed

We tested the effect of leaf-tying caterpillars, native ecosystem engineers, on the abundance and host feeding of an invasive insect, the Asiatic oak weevil, Cyrtepistomus castaneus (Roelofs). Leaf quality was previously thought to be the sole factor determining host use by C. castaneus, but adult weevils congregate in leaf ties made by lepidopteran larvae (caterpillars). Adult weevil abundance was naturally higher on Quercus alba and Q. velutina compared to four other tree species tested (Acer rubrum, Carya ovata, Cornus florida, and Sassafras albidum). These differences were associated with more natural leaf ties on the two Quercus species. In the laboratory, weevils fed on all six species but again preferred Q. alba and Q. velutina. When artificial ties were added to all six tree species, controlling for differences in leaf-tie density, adult weevil density increased on all six tree species, damage increased on all species but A. rubrum, and host ranking changed based on both abundance and damage. We conclude that leaf ties increase the local abundance of C. castaneus adults and their feeding. Thus, these native leaf-tying caterpillars engender the success of an invasive species via structural modification of potential host plants, the first described example of this phenomenon. PMID:25039212

Baer, Christina S; Marquis, Robert J

2014-06-01

381

TIES Project is co-financed by the European Commission on the framework of the TEMPUS Programme. Contract: 159218-TEMPUS-1-2009-1-ES-TEMPUS-JPGR  

E-print Network

TIES Project is co-financed by the European Commission on the framework of the TEMPUS Programme Roberto Escarré Virjinia Ferrer University of Alicante #12;TIES Project is co-financed by the European or conceptualisation ­ Implementation ­ Evaluation and monitoring #12;TIES Project is co-financed by the European

382

TIES Project is co-financed by the European Commission on the framework of the TEMPUS Programme. Contract: 159218-TEMPUS-1-2009-1-ES-TEMPUS-JPGR  

E-print Network

TIES Project is co-financed by the European Commission on the framework of the TEMPUS Programme BUILDING VIRJINIA FERRER Hotel Coral Hamra Lebanon Beirut, 19th ­ 20th April 2012 #12;TIES Project is co-TEMPUS-JPGR I. GUIDE FOR APPLICANTS II. APPLICATION FORM III. ANNEXES ANALYSIS OF CALL DOCUMENTS #12;TIES

383

Integrated High Speed Intelligent Utility Tie Unit for Disbursed/Renewable Generation Facilities Worakarn Wongsaichua, Wei-Jen Lee Soontorn Oraintara Chiman Kwan Frank Zhang  

E-print Network

Integrated High Speed Intelligent Utility Tie Unit for Disbursed/Renewable Generation Facilities as emergency and standby power supply. However, the mismatch between the utility tie protection system. This paper discusses the development of an integrated high-speed intelligent utility tie

Oraintara, Soontorn

384

TIES Project is co-financed by the European Commission on the framework of the TEMPUS Programme. Contract: 159218-TEMPUS-1-2009-1-ES-TEMPUS-JPGR  

E-print Network

TIES Project is co-financed by the European Commission on the framework of the TEMPUS Programme University of Alicante #12;TIES Project is co-financed by the European Commission on the framework PROJECTS EU Assessment #12;TIES Project is co-financed by the European Commission on the framework

385

TIES Project is co-financed by the European Commission on the framework of the TEMPUS Programme. Contract: 159218-TEMPUS-1-2009-1-ES-TEMPUS-JPGR  

E-print Network

TIES Project is co-financed by the European Commission on the framework of the TEMPUS Programme Director University of Alicante #12;TIES Project is co-financed by the European Commission on the framework and development · Is there any funding available? · International Fundraising Plan #12;TIES Project is co

386

A Dynamic Analysis of Tied Aid Chi-Chur Chao, Bharat R. Hazari, Jean-Pierre Laffargue, and Eden S. H. Yu  

E-print Network

A Dynamic Analysis of Tied Aid Chi-Chur Chao, Bharat R. Hazari, Jean-Pierre Laffargue, and Eden S of tied aid on capital accumulation and welfare in the presence of a quota on imports. Using a simulation model we establish that tied aid can lower the relative domestic price of the manufactured good

Boyer, Edmond

387

TIES Project is co-financed by the European Commission on the framework of the TEMPUS Programme. Contract: 159218-TEMPUS-1-2009-1-ES-TEMPUS-JPGR  

E-print Network

TIES Project is co-financed by the European Commission on the framework of the TEMPUS Programme Identify relevant calls for proposals Roberto Escarré Virjinia Ferrer University of Alicante #12;TIES ­ ANALYSING CALL DOCUMENTATION ­ PARTNERS SEARCH & CONSORTIUM BUILDING #12;TIES Project is co

388

ERGEBNISSE DER TIES-STUDIE AUS FRANKFURT, BERLIN UND EUROPA Donnerstag, 26. Januar 2012, 16.00 Uhr 19.30 Uhr  

E-print Network

ERGEBNISSE DER TIES-STUDIE AUS FRANKFURT, BERLIN UND EUROPA Donnerstag, 26. Januar 2012, 16.00 UhrStiftung geförderte TIES-Studie ist ein breit angelegtes Koope- rationsprojekt zwischen Universitäten und abhängen. TIES stellt daher nicht nur für die Wissenschaft, sondern auch für zivilgesellschaftliche Akteure

Kallenrode, May-Britt

389

TIES Project is co-financed by the European Commission on the framework of the TEMPUS Programme. Contract: 159218-TEMPUS-1-2009-1-ES-TEMPUS-JPGR  

E-print Network

TIES Project is co-financed by the European Commission on the framework of the TEMPUS Programme Escarré Virjinia Ferrer University of Alicante #12;TIES Project is co-financed by the European Commission PARTICIPATION ­ APPLICATION PROCESS & DRAFTING #12;TIES Project is co-financed by the European Commission

390

Selection based on the size of the black tie of the great tit may be reversed in urban habitats.  

PubMed

A standard approach to model how selection shapes phenotypic traits is the analysis of capture-recapture data relating trait variation to survival. Divergent selection, however, has never been analyzed by the capture-recapture approach. Most reported examples of differences between urban and nonurban animals reflect behavioral plasticity rather than divergent selection. The aim of this paper was to use a capture-recapture approach to test the hypothesis that divergent selection can also drive local adaptation in urban habitats. We focused on the size of the black breast stripe (i.e., tie width) of the great tit (Parus major), a sexual ornament used in mate choice. Urban great tits display smaller tie sizes than forest birds. Because tie size is mostly genetically determined, it could potentially respond to selection. We analyzed capture/recapture data of male great tits in Barcelona city (N = 171) and in a nearby (7 km) forest (N = 324) from 1992 to 2008 using MARK. When modelling recapture rate, we found it to be strongly influenced by tie width, so that both for urban and forest habitats, birds with smaller ties were more trap-shy and more cautious than their larger tied counterparts. When modelling survival, we found that survival prospects in forest great tits increased the larger their tie width (i.e., directional positive selection), but the reverse was found for urban birds, with individuals displaying smaller ties showing higher survival (i.e., directional negative selection). As melanin-based tie size seems to be related to personality, and both are heritable, results may be explained by cautious personalities being favored in urban environments. More importantly, our results show that divergent selection can be an important mechanism in local adaptation to urban habitats and that capture-recapture is a powerful tool to test it. PMID:25077014

Senar, Juan Carlos; Conroy, Michael J; Quesada, Javier; Mateos-Gonzalez, Fernando

2014-07-01

391

Selection based on the size of the black tie of the great tit may be reversed in urban habitats  

PubMed Central

A standard approach to model how selection shapes phenotypic traits is the analysis of capture–recapture data relating trait variation to survival. Divergent selection, however, has never been analyzed by the capture–recapture approach. Most reported examples of differences between urban and nonurban animals reflect behavioral plasticity rather than divergent selection. The aim of this paper was to use a capture–recapture approach to test the hypothesis that divergent selection can also drive local adaptation in urban habitats. We focused on the size of the black breast stripe (i.e., tie width) of the great tit (Parus major), a sexual ornament used in mate choice. Urban great tits display smaller tie sizes than forest birds. Because tie size is mostly genetically determined, it could potentially respond to selection. We analyzed capture/recapture data of male great tits in Barcelona city (N = 171) and in a nearby (7 km) forest (N = 324) from 1992 to 2008 using MARK. When modelling recapture rate, we found it to be strongly influenced by tie width, so that both for urban and forest habitats, birds with smaller ties were more trap-shy and more cautious than their larger tied counterparts. When modelling survival, we found that survival prospects in forest great tits increased the larger their tie width (i.e., directional positive selection), but the reverse was found for urban birds, with individuals displaying smaller ties showing higher survival (i.e., directional negative selection). As melanin-based tie size seems to be related to personality, and both are heritable, results may be explained by cautious personalities being favored in urban environments. More importantly, our results show that divergent selection can be an important mechanism in local adaptation to urban habitats and that capture–recapture is a powerful tool to test it. PMID:25077014

Senar, Juan Carlos; Conroy, Michael J; Quesada, Javier; Mateos-Gonzalez, Fernando

2014-01-01

392

Impact of plant architecture versus leaf quality on attack by leaf-tying caterpillars on five oak species.  

PubMed

Because shelter-building herbivorous insect species often consider structural features of their host plants in selecting construction sites, their probability of attack is likely to be a function of some combination of plant architectural traits and leaf quality factors. We tested the hypothesis that plant architecture, in the form of the number of touching leaves, influences interspecific variation in attack by leaf-tying caterpillars in five species of sympatric Missouri oaks (Quercus). We compared colonization on control branches, in which both architecture and leaf quality were potentially important, with colonization on experimental branches for which we controlled for the effects of architecture by creating equal numbers of artificial ties. Colonization of artificial ties was highly correlated with natural colonization on neighboring control branches, suggesting that leaf quality factors and not architecture influenced interspecific variation in attack by leaf-tying caterpillars. Of the leaf quality factors measured (water, protein-binding capacity, nitrogen, specific leaf area, pubescence, and toughness), nitrogen was the most explanatory. With the exception of white oak, natural leaf tie colonization was positively correlated with nitrogen availability (ratio of nitrogen to protein-binding capacity), and negatively correlated with protein-binding capacity of leaf extracts. Both host plant species and subgenus oak influenced the community composition of leaf-tying caterpillars and the non-tying symbionts colonizing the ties. Host plant differences in leaf nitrogen content were positively correlated with pupal weight of one of two caterpillar species reared on all five host plant species. Thus, interspecific differences in nitrogen, nitrogen availability, and protein-binding capacity of leaf extracts are the best predictors at this time of interspecific differences in attack by leaf-tying caterpillars, in turn affecting their success on individual host plants in the laboratory. PMID:19960353

Marquis, Robert J; Lill, John T

2010-05-01

393

Tie-dyed1 and Sucrose export defective1 act independently to promote carbohydrate export from maize leaves  

PubMed Central

tie-dyed1 (tdy1) and sucrose export defective1 (sxd1) are recessive maize (Zea mays) mutants with nonclonal chlorotic leaf sectors that hyperaccumulate starch and soluble sugars. In addition, both mutants display similar growth-related defects such as reduced plant height and inflorescence development due to the retention of carbohydrates in leaves. As tdy1 and sxd1 are the only variegated leaf mutants known to accumulate carbohydrates in any plant, we investigated whether Tdy1 and Sxd1 function in the same pathway. Using aniline blue staining for callose and transmission electron microscopy to inspect plasmodesmatal ultrastructure, we determined that tdy1 does not have any physical blockage or alteration along the symplastic transport pathway as found in sxd1 mutants. To test whether the two genes function in the same genetic pathway, we constructed F2 families segregating both mutations. Double mutant plants showed an additive interaction for growth related phenotypes and soluble sugar accumulation, and expressed the leaf variegation pattern of both single mutants indicating that Tdy1 and Sxd1 act in separate genetic pathways. Although sxd1 mutants lack tocopherols, we determined that tdy1 mutants have wild-type tocopherol levels, indicating that Tdy1 does not function in the same biochemical pathway as Sxd1. From these and other data we conclude that Tdy1 and Sxd1 function independently to promote carbon export from leaves. Our genetic and cytological studies implicate Tdy1 functioning in veins, and a model discussing possible functions of TDY1 is presented. Electronic supplementary material The online version of this article (doi:10.1007/s00425-007-0636-6) contains supplementary material, which is available to authorized users. PMID:17924136

Ma, Yi; Baker, R. Frank; Magallanes-Lundback, Maria; DellaPenna, Dean

2007-01-01

394

Highly modular bow-tie gene circuits with programmable dynamic behaviour.  

PubMed

Synthetic gene circuits often require extensive mutual optimization of their components for successful operation, while modular and programmable design platforms are rare. A possible solution lies in the 'bow-tie' architecture, which stipulates a focal component-a 'knot'-uncoupling circuits' inputs and outputs, simplifying component swapping, and introducing additional layer of control. Here we construct, in cultured human cells, synthetic bow-tie circuits that transduce microRNA inputs into protein outputs with independently programmable logical and dynamic behaviour. The latter is adjusted via two different knot configurations: a transcriptional activator causing the outputs to track input changes reversibly, and a recombinase-based cascade, converting transient inputs into permanent actuation. We characterize the circuits in HEK293 cells, confirming their modularity and scalability, and validate them using endogenous microRNA inputs in additional cell lines. This platform can be used for biotechnological and biomedical applications in vitro, in vivo and potentially in human therapy. PMID:25311543

Prochazka, Laura; Angelici, Bartolomeo; Haefliger, Benjamin; Benenson, Yaakov

2014-01-01

395

Employing static excitation control and tie line reactance to stabilize wind turbine generators  

NASA Technical Reports Server (NTRS)

An analytical representation of a wind turbine generator is presented which employs blade pitch angle feedback control. A mathematical model was formulated. With the functioning MOD-0 wind turbine serving as a practical case study, results of computer simulations of the model as applied to the problem of dynamic stability at rated load are also presented. The effect of the tower shadow was included in the input to the system. Different configurations of the drive train, and optimal values of the tie line reactance were used in the simulations. Computer results revealed that a static excitation control system coupled with optimal values of the tie line reactance would effectively reduce oscillations of the power output, without the use of a slip clutch.

Hwang, H. H.; Mozeico, H. V.; Guo, T.

1978-01-01

396

Dendrometer bands made easy: using modified cable ties to measure incremental growth of trees  

USGS Publications Warehouse

Dendrometer bands are a useful way to make sequential repeated measurements of tree growth, but traditional dendrometer bands can be expensive, time consuming, and difficult to construct in the field. An alternative to the traditional method of band construction is to adapt commercially available materials. This paper describes how to construct and install dendrometer bands using smooth-edged, stainless steel, cable tie banding and attachable rollerball heads. As a performance comparison, both traditional and cable tie dendrometer bands were installed on baldcypress trees at the National Wetlands Research Center in Lafayette, Louisiana, by both an experienced and a novice worker. Band installation times were recorded, and growth of the trees as estimated by the two band types was measured after approximately one year, demonstrating equivalence of the two methods. This efficient approach to dendrometer band construction can help advance the knowledge of long-term tree growth in ecological studies.

Anemaet, Evelyn R.; Middleton, Beth A.

2013-01-01

397

Utility-scale grid-tied PV inverter reliability workshop summary report.  

SciTech Connect

A key to the long-term success of the photovoltaic (PV) industry is confidence in the reliability of PV systems. Inverters are the most commonly noted cause of PV system incidents triggered in the field. While not all of these incidents are reliability-related or even necessarily failures, they still result in a loss of generated power. With support from the U.S. Department of Energy's Solar Energy Technologies Program, Sandia National Laboratories organized a Utility-Scale Grid-Tied Inverter Reliability Workshop in Albuquerque, New Mexico, January 27-28, 2011. The workshop addressed the reliability of large (100-kilowatt+) grid-tied inverters and the implications when such inverters fail, evaluated inverter codes and standards, and provided discussion about opportunities to enhance inverter reliability. This report summarizes discussions and presentations from the workshop and identifies opportunities for future efforts.

Granata, Jennifer E.; Quintana, Michael A.; Tasca, Coryne Adelle (SRA International, Inc., Fairfax, VA); Atcitty, Stanley

2011-07-01

398

Double-sided printed bow-tie antenna for UWB communications  

Microsoft Academic Search

This letter proposes a double-sided printed bow-tie antenna for ultra wide band (UWB) applications. The frequency band considered is 3.1-10.6 GHz, which has been approved by the Federal Communications Commission as a commercial UWB band. The proposed antenna has a return loss less than 10 dB, phase linearity, and gain flatness over the above frequency band.

Katsuki Kiminami; Akimasa Hirata; Toshiyuki Shiozawa

2004-01-01

399

Toward Stronger Ties: The AAS Working Group on Professional-Amateur Collaboration  

Microsoft Academic Search

Experienced amateur astronomers represent a unique resource for their professional counterparts. Many knowledgeable amateurs now have telescopes in the 0.2- to 0.5-m class equipped with high-grade CCDs and software. To foster stronger ties between these observers and astronomical researchers, the AAS Council established a Working Group for Professional-Amateur Collaboration (WGPAC) during the Society's 193rd meeting in January 1999. Initially given

J. K. Beatty; J. C. White

2004-01-01

400

Marital Status, Family Ties, and Self-rated Health Among Elders In South India  

Microsoft Academic Search

This article examines the impact of familial social support ties (indicated by marital status, kin availability, sources of\\u000a economic support, and frequency and quality of emotional interaction) on subjective health perception among a sample of elderly\\u000a men and women aged 60 and older in South India. We used 1993 survey data from three states of South India: Kerala, Tamil Nadu,

S. Sudha; Chirayath Suchindran; Elizabeth J. Mutran; S. Irudaya Rajan; P. Sankara Sarma

2006-01-01

401

On the frame tie between VLBI and GNSS established by VLBI observations to satellites  

NASA Astrophysics Data System (ADS)

Very Long Baseline Interferometry (VLBI) and Global Navigation Satellite Systems (GNSS) are two of four space geodetic techniques contributing to the International Terrestrial Reference Frame (ITRF). For observing natural radiation of extragalactic radio sources with large radio telescopes on the one hand, and receiving artificial radio signals emitted by satellites with compact GNSS antennas on the other hand, both systems use different hardware. If we want to generate combined products in terms of station coordinates or Earth Orientation Parameters, the systems have to be referenced to each other carefully. Today, the determination of this so-called frame tie is the limiting factor for the establishment of precise reference frames. Plus, for a consistent multi-technique combination in the sense of GGOS, new strategies and ways of observation need to be identified. In this presentation, we discuss the derivation of the frame tie between VLBI and GNSS by using VLBI observations to satellites of the GNSS. Therefore, such observations are simulated and analysed in the standard VLBI method, solving for station coordinates. In the analysis, common troposphere delays and common clocks are determined at the stations. The accuracy of the frame tie is finally assessed by comparison of station coordinates of the observing sites in the quasar and the satellite frame. Monte Carlo simulations allow us to give estimates of the expected accuracies of the products, namely the station coordinates and the frame ties in terms of Helmert parameters. Our results are generated using different ways of including VLBI-GNSS observations in routine 24h VLBI experiments as well as changing analysis strategies.

Plank, Lucia; Boehm, Johannes; Schuh, Harald

2014-05-01

402

A High-Efficiency Grid-Tie Battery Energy Storage System  

Microsoft Academic Search

Lithium-ion-based battery energy storage system has started to become the most popular form of energy storage system for its high charge and discharge efficiency and high energy density. This paper proposes a high-efficiency grid-tie lithium-ion-battery- based energy storage system, which consists of a LiFePO4 -battery- based energy storage and a high-efficiency bidirectional ac-dc converter. The battery management system estimates the

Hao Qian; Jianhui Zhang; Wensong Yu

2011-01-01

403

Absentee Landowners Near a Military Installation in Texas: Use, Motivation, and Emotional Tie to their Land  

E-print Network

Absentee landowners near a military installation in Texas: Use, motivation, and emotional tie to their land by Amber L. Preston Dankert, B.S., M.S. A Dissertation In AGRICULTURAL EDUCATION Submitted to the Graduate Faculty... of the Graduate School December, 2012 Copyright 2012, Amber L. Preston Dankert Texas Tech University, Amber L. Preston Dankert, December 2012 ii ACKNOWLEDGEMENTS As I complete the final stages of my academic career, I...

Dankert, Amber 1980-

2012-12-20

404

Transmission ratio control system for a continuously variable transmission  

SciTech Connect

This patent describes a control system for a continuously variable transmission for transmitting power of an internal combustion engine, the transmission having a drive pulley including a hydraulically shiftable first disc and a hydraulic cylinder for operating the disc, a driven pulley including a hydraulically shiftable second disc and a hydraulic cylinder for operating the second disc, and a belt engaged with both pulleys, the control system comprising a hydraulic circuit including a pump for supplying oil to both the hydraulic cylinders, a transmission ratio control valve including a shiftable spool for controlling the oil supplied to the cylinder of the drive pulley to change transmission ratio of the transmission to a desired transmission ratio, shifting means for shifting the spool, sensing means for sensing operating conditions of the engine and the transmission and for producing condition signals dependent on the conditions, actual transmission ratio signal producing means responsive to the condition signals for producing an actual transmission ratio signal corresponding to the actual transmission ratio of the transmission, desired transmision ratio signal producing means responsive to the condition signals for producing a desired transmission ratio signal corresponding to a desired transmission ratio, transmission ratio changing speed signal producing means responsive to the actual transmission ratio signal and to the desired transmission ratio signal for producing a transmission ratio changing rate signal corresponding to a transmission ratio changing rate, and control signal producing means responsive to the transmission ratio changing rate signal for producing a control signal for operating the shifting means to shift the spool dependent on the transmission ratio changing rate for changing the actual transmission ratio of the transmission to the desired transmission ratio.

Tanaka, H.

1989-05-30

405

Angiopoietin/Tie2 signaling transforms capillaries into venules primed for leukocyte trafficking in airway inflammation.  

PubMed

Vascular endothelial growth factor (VEGF) is a key angiogenic factor in tumors, but less is known about what drives vascular remodeling in inflammation, where plasma leakage and leukocyte influx are prominent features. In chronic airway inflammation in mice infected by the bacterium Mycoplasma pulmonis (M. pulmonis), the segment of the microvasculature that supports leukocyte adhesion and migration expands through remodeling of capillaries into vessels with features of venules. Here, we report that the angiopoietin/Tie2 pathway is an essential driving force for capillary remodeling into venules in M. pulmonis-infected mouse airways. Similar to M. pulmonis infection, systemic overexpression of angiopoietin-1 (Ang1) resulted in remodeling of airway capillaries into venular-like vessels that expressed venous markers like P-selectin, ICAM-1, and EphB4 and were sites of leukocyte adhesion during lipopolysaccharide-induced acute inflammation. Ang1 and Ang2 protein increased in M. pulmonis-infected mouse airways but came from different cellular sources: Ang1 was expressed in infiltrating neutrophils and Ang2 in endothelial cells. Indeed, systemic administration of soluble Tie2 inhibited capillary remodeling, induction of venous markers, and leukocyte influx in M. pulmonis-infected mouse airways. Together, these findings suggest that blockade of the Ang/Tie2 pathway may represent a therapeutic approach in airway inflammation. PMID:20133818

Fuxe, Jonas; Lashnits, Erin; O'Brien, Shaun; Baluk, Peter; Tabruyn, Sebastien P; Kuhnert, Frank; Kuo, Calvin; Thurston, Gavin; McDonald, Donald M

2010-04-01

406

A Tie-Over Dressing Using a Silicone Tube to Graft Deep Wounds  

PubMed Central

Background The most common cause of skin graft failure is the collection of blood or serous fluid underneath the graft. In our study, we describe the use of silicone tube for tie-over dressing to secure the skin graft margins with the aim of decreasing loss of the skin graft, particularly in grafting of deep wounds. Methods Between March 2008 and July 2011, we used this technique in 17 patients with skin defects with depths ranging from 3.5 to 8 mm (mean, 5.5 mm). First, the skin graft was sutured with 3/0 silk suture material from its corners. Then, a silicone round drain tube was sutured with 3/0 absorbable polyglactin 910 over the margins of the graft. Finally, long silk threads were tied over the bolus dressing, and the tie-over dressing was completed in the usual fashion. Results The mean follow-up was 7 months (range, 2-10 months) in the outpatient clinic. Graft loss on the graft margins due to hematoma or seroma was not developed. The results of adhesion between the graft and wound bed peripherally was excellent. Conclusions In our study, we suggest that use of a silicone tube for additional pressure on the edges of skin grafts in case of reconstruction of deep skin defects. PMID:24286043

Bektas, Cem Inan; Kankaya, Yuksel; Baris, Ruser; Aslan, Ozlem Colak; Kocer, Ugur

2013-01-01

407

Finite element analyses of continuous filament ties for masonry applications : final report for the Arquin Corporation.  

SciTech Connect

Finite-element analyses were performed to simulate the response of a hypothetical vertical masonry wall subject to different lateral loads with and without continuous horizontal filament ties laid between rows of concrete blocks. A static loading analysis and cost comparison were also performed to evaluate optimal materials and designs for the spacers affixed to the filaments. Results showed that polypropylene, ABS, and polyethylene (high density) were suitable materials for the spacers based on performance and cost, and the short T-spacer design was optimal based on its performance and functionality. Simulations of vertical walls subject to static loads representing 100 mph winds (0.2 psi) and a seismic event (0.66 psi) showed that the simulated walls performed similarly and adequately when subject to these loads with and without the ties. Additional simulations and tests are required to assess the performance of actual walls with and without the ties under greater loads and more realistic conditions (e.g., cracks, non-linear response).

Quinones, Armando, Sr. (Arquin Corporation, La Luz, NM); Bibeau, Tiffany A.; Ho, Clifford Kuofei

2008-08-01

408

Transmission of Flu (Influenza)  

MedlinePLUS

... JavaScript on. Read more information on enabling JavaScript. Flu (Influenza) Skip Content Marketing Share this: Main Content Area Transmission How Flu Spreads Coughing and Sneezing People with flu can ...

409

Down hole transmission system  

DOEpatents

A transmission system in a downhole component comprises a data transmission element in both ends of the downhole component. Each data transmission element houses an electrically conducting coil in a MCEI circular trough. The electrically conducting coil comprises at least two generally fractional loops. In the preferred embodiment, the transmission elements are connected by an electrical conductor. Preferably, the electrical conductor is a coaxial cable. Preferably, the MCEI trough comprises ferrite. In the preferred embodiment, the fractional loops are connected by a connecting cable. In one aspect of the present invention, the connecting cable is a pair of twisted wires. In one embodiment the connecting cable is a shielded pair of twisted wires. In another aspect of the present invention, the connecting cable is a coaxial cable. The connecting cable may be disposed outside of the MCEI circular trough.

Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT)

2007-07-24

410

E. coli Transmission  

MedlinePLUS

... JavaScript on. Read more information on enabling JavaScript. E. coli Skip Content Marketing Share this: Main Content Area Transmission Shiga toxin-producing E. coli (STEC) occurs when people consume contaminated foods ...

411

Dodder transmission of phytoplasmas.  

PubMed

Transmission of phytoplasmas from naturally infected plant host species using the parasitic plant Cuscuta spp. (dodder) to Catharanthus roseus (Madagascar periwinkle) is an effective way to maintain a wide range of phytoplasmas for further research. Here, we describe transmission via dodder from an infected medicinal plant Rehmannia glutinosa var. purpurea and from a symptomatic redcurrant plant (Ribes spp.) to C. roseus indicator plants using a "stable bridges" method. In both cases, typical symptoms of phytoplasma disease on periwinkle plants were obtained: virescent flowers with an increased number of axillary shoots and smaller leaves after transmission from R. glutinosa, and greening petals (virescence) after transmission from Ribes spp. Phytoplasmas could be detected in donor and recipient plants by electron microscopy and by polymerase chain reaction (PCR) assays using universal phytoplasma primer pairs. Restriction fragment length polymorphism analyses of PCR fragments can also be used to confirm the identity of the phytoplasmas from donor and recipient plants. PMID:22987404

P?ibylová, Jaroslava; Spak, Josef

2013-01-01

412

Designing electricity transmission auctions  

E-print Network

The UK has ambitious plans for exploiting offshore wind for electricity production in order to meet its challenging target under the EU Renewable Energy Directive. This could involve investing up to 20bn in transmission assets to bring electricity...

Greve, Thomas; Pollitt, Michael G.

2012-10-26

413

Lyme Disease Transmission  

MedlinePLUS

... Health Officials Veterinarians Tool kit Lyme disease quiz Lyme disease transmission The Lyme disease bacterium, Borrelia burgdorferi , is ... blacklegged ticks Are there other ways to get Lyme disease? There is no evidence that Lyme disease is ...

414

Performance Incentives for Transmission  

E-print Network

) establishes a framework for markets based on locational marginal pricing (LMP). The NOPR envisions a critical incentives. G iven the shortcomings of the NOPR's treatment of transmission, we think that FERC should

Oren, Shmuel S.

415

On inferring liquid-liquid phase boundaries and tie lines from ternary mixture light scattering  

NASA Astrophysics Data System (ADS)

We investigate the possibility of using light scattering data in the single-phase regions of a ternary liquid mixture phase diagram to infer ternary mixture coexistence curves, and to infer tie lines joining the compositions of isotropic liquid phases in thermodynamic equilibrium. Previous analyses of a nonlinear light scattering partial differential equation (LSPDE) show that it provides for reconstruction of ternary [D. Ross, G. Thurston, and C. Lutzer, J. Chem. Phys. 129, 064106 (2008), 10.1063/1.2937902; C. Wahle, D. Ross, and G. Thurston, J. Chem. Phys. 137, 034201 (2012), 10.1063/1.4731694] and quaternary [C. Wahle, D. Ross, and G. Thurston, J. Chem. Phys. 137, 034202 (2012)] mixing free energies from light scattering data, and that if the coexistence curves are already known, it can also yield ternary tie lines and triangles [D. Ross, G. Thurston, and C. Lutzer, J. Chem. Phys. 129, 064106 (2008), 10.1063/1.2937902]. Here, we show that the LSPDE can be used more generally, to infer phase boundaries and tie lines from light scattering data in the single-phase region, without prior knowledge of the coexistence curve, if the single-phase region is connected. The method extends the fact that the reciprocal light scattering intensity approaches zero at the thermodynamic spinodal. Expressing the free energy as the sum of ideal and excess parts leads to a natural family of Padé approximants for the reciprocal Rayleigh ratio. To test the method, we evaluate the single-phase reciprocal Rayleigh ratio resulting from the mean-field, regular solution model on a fine grid. We then use a low-order approximant to extrapolate the reciprocal Rayleigh ratio into metastable and unstable regions. In the metastable zone, the extrapolation estimates light scattering prior to nucleation and growth of a new phase. In the unstable zone, the extrapolation produces a negative function that in the present context is a computational convenience. The original and extrapolated reciprocal light scattering are jointly used as input to solving the LSPDE to deduce the mixing free energy and its convex hull. When projected onto the composition triangle, the boundary of the convexified part of the free energy is the phase boundary, and lines on the convexified region along which the second directional derivative is zero are the tie lines. We find that the tie lines and phase boundaries so deduced agree well with their exact values. This work is a step toward developing methods for inferring phase boundaries from real light scattering intensities measured with noise, from mixtures having compositions on a coarser grid.

Wahle, Chris W.; Ross, David S.; Thurston, George M.

2012-07-01

416

Development and Testing of the Glenn Research Center Visitor's Center Grid-Tied Photovoltaic Power System  

NASA Technical Reports Server (NTRS)

The NASA Glenn Research Center (GRC) has developed, installed, and tested a 12 kW DC grid-tied photovoltaic (PV) power system at the GRC Visitor s Center. This system utilizes a unique ballast type roof mount for installing the photovoltaic panels on the roof of the Visitor s Center with no alterations or penetrations to the roof. The PV system has generated in excess of 15000 kWh since operation commenced in August 2008. The PV system is providing power to the GRC grid for use by all. Operation of the GRC Visitor s Center PV system has been completely trouble free. A grid-tied PV power system is connected directly to the utility distribution grid. Facility power can be obtained from the utility system as normal. The PV system is synchronized with the utility system to provide power for the facility, and excess power is provided to the utility. The project transfers space technology to terrestrial use via nontraditional partners. GRC personnel glean valuable experience with PV power systems that are directly applicable to various space power systems, and provides valuable space program test data. PV power systems help to reduce harmful emissions and reduce the Nation s dependence on fossil fuels. Power generated by the PV system reduces the GRC utility demand, and the surplus power aids the community. Present global energy concerns reinforce the need for the development of alternative energy systems. Modern PV panels are readily available, reliable, efficient, and economical with a life expectancy of at least 25 years. Modern electronics has been the enabling technology behind grid-tied power systems, making them safe, reliable, efficient, and economical with a life expectancy of at least 25 years. Based upon the success of the GRC Visitor s Center PV system, additional PV power system expansion at GRC is under consideration. The GRC Visitor s Center grid-tied PV power system was successfully designed and developed which served to validate the basic principles described, and the theoretical work that was performed. The report concludes that grid-tied photovoltaic power systems are reliable, maintenance free, long life power systems, and are of significant value to NASA and the community.

Eichenberg, Dennis J.

2009-01-01

417

Design of a Glenn Research Center Solar Field Grid-Tied Photovoltaic Power System  

NASA Technical Reports Server (NTRS)

The NASA Glenn Research Center (GRC) designed, developed, and installed, a 37.5 kW DC photovoltaic (PV) Solar Field in the GRC West Area in the 1970s for the purpose of testing PV panels for various space and terrestrial applications. The PV panels are arranged to provide a nominal 120 VDC. The GRC Solar Field has been extremely successful in meeting its mission. The PV panels and the supporting electrical systems are all near their end of life. GRC has designed a 72 kW DC grid-tied PV power system to replace the existing GRC West Area Solar Field. The 72 kW DC grid-tied PV power system will provide DC solar power for GRC PV testing applications, and provide AC facility power for all times that research power is not required. A grid-tied system is connected directly to the utility distribution grid. Facility power can be obtained from the utility system as normal. The PV system is synchronized with the utility system to provide power for the facility, and excess power is provided to the utility for use by all. The project transfers space technology to terrestrial use via nontraditional partners. GRC personnel glean valuable experience with PV power systems that are directly applicable to various space power systems, and provide valuable space program test data. PV power systems help to reduce harmful emissions and reduce the Nation s dependence on fossil fuels. Power generated by the PV system reduces the GRC utility demand, and the surplus power aids the community. Present global energy concerns reinforce the need for the development of alternative energy systems. Modern PV panels are readily available, reliable, efficient, and economical with a life expectancy of at least 25 years. Modern electronics has been the enabling technology behind grid-tied power systems, making them safe, reliable, efficient, and economical with a life expectancy of at least 25 years. The report concludes that the GRC West Area grid-tied PV power system design is viable for a reliable, maintenance free, long life power system that is of significant value to NASA and the community.

Eichenberg, Dennis J.

2009-01-01

418

Broken Ties  

ERIC Educational Resources Information Center

As the number of people choosing to marry has plunged during recent decades, the tally of children living with one parent and having limited or no contact with the other has soared. Attuned to the hazards that such separations impose upon children but also upon parents who, studies show, fare physically and emotionally better in a thriving…

Gray, Katti

2009-01-01

419

Superfund record of decision (EPA Region 10): Union Pacific Railroad Tie Treatment, the Dalles, OR, March 27, 1996  

SciTech Connect

This document presents the selected remedial action for contaminated soil, groundwater, surface water and sediments, at the Union Pacific Railroad (UPRR) Tie-Treating Plant site in The Dalles, Oregon.

NONE

1996-07-01

420

Evaluation of the Polyethylene Reverse Sampler as a Dosing System in Marine Phase II Whole Sediment Toxicity Identification Evaluations (TIEs)  

EPA Science Inventory

Contaminated marine sediments can cause acute and chronic impairments to benthic organisms. Nonionic organic contaminants (NOCs) are often a primary cause of impairment. Toxicity Identification Evaluations (TIEs) are used to identify chemicals causing toxicity in sediments. Ph...

421

USE OF ZEOLITE FOR REMOVING AMMONIA AND AMMONIA-CAUSED TOXCITY IN MARINE TOXICITY IDENTIFCATION EVALUATIONS (TIES)  

EPA Science Inventory

Ammonia occurs in marine waters including effluents, receiving waters, and sediment interstitial waters. At sufficiently high concentrations, ammonia can be toxic to aquatic species. Toxicity identification evaluation (TIE) methods provide researchers with tools for identifyi...

422

Mechanism for supporting transmission shafts of automatic transmission apparatus  

Microsoft Academic Search

This patent describes an automatic transmission for use in a vehicle, the transmission comprising: a transmission case; an extension housing connected to the transmission case; an input shaft; an output shaft disposed coaxially with and in series to the input shaft; a clutch mechanism for connecting the input shaft and the output shaft; and a parking gear mechanism provided in

S. Moroto; K. Sumiya; Y. Kobayashi; T. Kano; A. Hoshino; Y. Ano; K. Watanabe; Y. Taga

1989-01-01

423

Isolation of Angiopoietin-1, a Ligand for the TIE2 Receptor, by Secretion-Trap Expression Cloning  

Microsoft Academic Search

TIE2 is a receptor-like tyrosine kinase expressed almost exclusively in endothelial cells and early hemopoietic cells and required for the normal development of vascular structures during embryogenesis. We report the identification of a secreted ligand for TIE2, termed Angiopoietin-1, using a novel expression cloning technique that involves intracellular trapping and detection of the ligand in COS cells. The structure of

Samuel Davis; Thomas H Aldrich; Pamela F Jones; Ann Acheson; Debra L Compton; Vivek Jain; Terence E Ryan; Joanne Bruno; Czeslaw Radziejewski; Peter C Maisonpierre; George D Yancopoulos

1996-01-01

424

78 FR 75544 - Prestressed Concrete Steel Rail Tie Wire From Mexico: Preliminary Determination of Sales at Less...  

Federal Register 2010, 2011, 2012, 2013

The Department of Commerce (``Department'') preliminarily determines that prestressed concrete steel rail tie wire (``PC tie wire'') from Mexico is being, or is likely to be, sold in the United States at less than fair value (``LTFV''), as provided in section 733(b) of the Tariff Act of 1930, as amended (``the Act''). The period of investigation (``POI'') is April 1, 2012, through March 31, 2013.......

2013-12-12

425

Disorganized vascular structures in sporadic venous malformations: a possible correlation with balancing effect between Tie2 and TGF-?  

PubMed Central

Venous malformations (VMs) are among the most common slow-flow vascular malformations characterized by irregular venous channels, luminal thrombi, and phleboliths. To systematically manifest the disorganized vascular structures in sporadic VMs, we initially evaluated histopathological characteristics, perivascular cell coverage, adhesion molecules expression and vascular ultrastructures. Then, the expression of Tie2 and TGF-? in VMs was detected. Meanwhile, the in vitro studies were performed for mechanism investigation. Our data showed that the perivascular ?-SMA+ cell coverage and expression of adhesion molecules in VMs were significantly decreased compared with those in the normal skin tissues. We also found that the expression and phosphorylation levels of Tie2 were upregulated, whereas TGF-? was downregulated in VMs, and they were negatively correlated. Moreover, the in vitro results also revealed a possible balancing effect between Tie2 and TGF-?, as demonstrated by the findings that Ang-1 (agonist of Tie2) treatment significantly downregulated TGF-? expression, and treatment with recombinant TGF-? could also suppress Tie2 expression and phosphorylation. This study provided strong evidence supporting the disorganized vascular structures and dysregulation of related molecules in sporadic VMs, and demonstrated a possible balancing effect between Tie2 and TGF-?, which might help to develop novel therapeutics for vascular disorganization-related disorders. PMID:24966004

Chen, Gang; Ren, Jian-Gang; Zhang, Wei; Sun, Yan-Fang; Wang, Feng-Qin; Li, Rui-Fang; Zhang, Jian; Zhao, Yi-Fang

2014-01-01

426

2006 Final Transmission Proposal.  

SciTech Connect

This Record of Decision (ROD) contains the decisions of the Administrator of the Bonneville Power Administration BPABPA with respect to the adoption of transmission and ancillary services rates for the two-year rate period beginning October 1, 2005, and ending September 30, 2007 (fiscal years (FY) 2006-2007)(2006 Final Transmission and Ancillary Services Rate Proposal). These decisions are based on the record compiled in this rate proceeding. The transmission and ancillary services rates adopted in this ROD are the rates proposed as a result of a comprehensive settlement agreement between BPA's Transmission Business Line (BPA-TBL) and a diverse group of transmission customers, including BPA's Power Business Line (BPA-PBL), regional investor-owned utilities, partial and full requirements customers of the BPA-PBL, Direct Services Industrial (DSI) customers, and merchant generators. The decisions in this ROD to adopt the rates and charges proposed by the settlement agreement are not intended to create or imply any factual , legal, procedural or substantive precedent, or to create agreement to any underlying principle or methodology.

United States. Bonneville Power Administration.

2005-06-01

427

Small passenger car transmission test: Mercury Lynx ATX transmission  

NASA Technical Reports Server (NTRS)

The testing of a Mercury Lynx automatic transmission is reported. The transmission was tested in accordance with a passenger car automatic transmission test code (SAE J65lb) which required drive performance, coast performance, and no load test conditions. Under these conditions, the transmission attained maximum efficiencies in the mid-ninety percent range both for drive performance test and coast performance tests. The torque, speed, and efficiency curves are presented, which provide the complete performance characteristics for the Mercury Lynx automatic transmission.

Bujold, M. P.

1981-01-01

428

Viewing transmission issues in perspective  

SciTech Connect

This article examines electric power transmission from the perspective of the power producers. The article discusses the impact to transmission line routing policy of the health effects of, and public opinion about, electromagnetic fields. The author examines past pricing policy for transmission access and encourages the power producers and owners of transmission lines to become more involved in the regulatory process.

Casazza, J.A.

1993-10-01

429

Printed circuit dispersive transmission line  

DOEpatents

A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other. 5 figures.

Ikezi, H.; Lin-Liu, Y.R.; DeGrassie, J.S.

1991-08-27

430

Advanced rotorcraft transmission program  

NASA Technical Reports Server (NTRS)

The Advanced Rotorcraft Transmission (ART) program is an Army-funded, joint Army/NASA program to develop and demonstrate lightweight, quiet, durable drivetrain systems for next generation rotorcraft. ART addresses the drivetrain requirements of two distinct next generation aircraft classes: Future Air Attack Vehicle, a 10,000 to 20,000 lb. aircraft capable of undertaking tactical support and air-to-air missions; and Advanced Cargo Aircraft, a 60,000 to 80,000 lb. aircraft capable of heavy life field support operations. Both tiltrotor and more conventional helicopter configurations are included in the ART program. Specific objectives of ART include reduction of drivetrain weight by 25 percent compared to baseline state-of-the-art drive systems configured and sized for the next generation aircraft, reduction of noise level at the transmission source by 10 dB relative to a suitably sized and configured baseline, and attainment of at least a 5000 hr mean-time-between-removal. The technical approach for achieving the ART goals includes application of the latest available component, material, and lubrication technology to advanced concept drivetrains that utilize new ideas in gear configuration, transmission layout, and airframe/drivetrain integration. To date, candidate drivetrain systems were carried to a conceptual design stage, and tradeoff studies were conducted resulting in selection of an ART transmission configuration for each of the four contractors. The final selection was based on comparative weight, noise, and reliability studies. A description of each of the selected ART designs is included. Preliminary design of each of the four selected ART transmission was completed, as have mission impact studies wherein comparisons of aircraft mission performance and life cycle costs are undertaken for the next generation aircraft with ART and with the baseline transmission.

Bill, Robert C.

1990-01-01

431

Transmissivity variations in mudstones.  

PubMed

Many people in sub-Saharan Africa have to rely on meager water resources within mudstones for their only water supply. Although mudstones have been extensively researched for their low permeability behavior, little research has been undertaken to examine their ability to provide sustainable water supplies. To investigate the factors controlling the occurrence of usable ground water in mudstone environments, an area of Cretaceous mudstones in southeastern Nigeria was studied over a 3 yr period. Transmissivity (T) variations in a range of mudstone environments were studied. The investigations demonstrate that within the top 40 m of mudstones, transmissivity can be sufficient to develop village water supplies (T > 1 m2/d). Transmissivity is controlled by two factors: low-grade metamorphism and the presence of other, subordinate, lithologies within the mudstones. Largely unaltered mudstones (early diagenetic zone), comprising mainly smectite clays, are mostly unfractured and have a low T of < 0.1 m2/d. Mudstones that have undergone limited metamorphism (late diagenetic zone) comprise mixed layered illite/smectite clays, and ground water is found in widely spaced fracture zones (T > 1 m2/d in large fracture zones; T < 0.1 m2/d away from fracture zones). Mudstones that have been further altered and approach the anchizone comprise illite clays, are pervasively fractured, and have the highest transmissivity values (T > 4 m2/d). Dolerite intrusions in unaltered, smectitic mudstones are highly fractured with transmissivity in the range of 1 < T < 60 m2/d. Thin limestone and sandstone layers can also enhance transmissivity sufficiently to provide community water supplies. PMID:15819947

MacDonald, Alan M; Kemp, Simon J; Davies, Jeff

2005-01-01

432

A new cable-tie-based sternal closure device: infectious considerations†  

PubMed Central

OBJECTIVES To determine the difference in sternal infection and other infectious events between conventional wire and cable-tie-based closure techniques post-sternotomy in a collective of patients after cardiac surgery. METHODS The sternal ZipFix™ (ZF) system consists of a biocompatible poly-ether-ether-ketone (PEEK) cable-tie that surrounds the sternum through the intercostal space and provides a large implant-to-bone contact. Between 1 February 2011 and 31 January 2012, 680 cardiac operations were performed via sternotomy at our institution. After the exclusion of operations for active endocarditis and early mortality within 7 days, 95 patients were exclusively closed with ZF and could be compared with 498 who were closed with conventional wires (CWs) during the same period. A multivariable logistic regression analysis, including body mass index, renal impairment and emergency as suspected confounders and inverse propensity weights was performed on the infection rate. RESULTS Total infection rate was 6.1%, with a total of 36 diagnosed sternal infections (5 in ZF and 31 in CW). Comparing ZF with CW with regard to sternal infection, there is no statistically significant difference related to the device (odds ratio: 0.067, confidence interval: 0.04–9.16, P = 0.72). The propensity modelling provided excellent overlap and the mean propensity was almost the same in both groups. Thus, we have observed no difference in receiving either ZF or CW. No sternal instability was observed with the ZF device, unlike 4/31 patients in the CW group. The overall operation time is reduced by 11 min in the ZF group with identical perfusion and clamping times. CONCLUSIONS Our study underlines a neutral effect of the sternal ZipFix™ system in patients regarding sternal infection. Postoperative complications are similar in both sternal closure methods. The cable-tie-based system is fast, easy to use, reliable and safe. PMID:23624983

Melly, Ludovic; Gahl, Brigitta; Meinke, Ruth; Rueter, Florian; Matt, Peter; Reuthebuch, Oliver; Eckstein, Friedrich S.; Grapow, Martin T.R.

2013-01-01

433

Reconnection and Current Sheet Formation in Line-Tied Magnetic Flux Tubes: Energetics and Stability  

NASA Astrophysics Data System (ADS)

Line-tied magnetic fields play a central role in Parker's model of coronal heating [E. N. Parker, Astrophys. J., 174, 499, 1972]. Our previous result [C. S. Ng and A. Bhattacharjee, Phys. Plasmas, 5, 4028, 1998] shows that this model can be realized if a line-tied magnetic equilibrium produced by a smooth footpoint mapping becomes unstable and relaxes to a state with current sheets, leading to magnetic reconnection and heating. A flux-tube tectonics model driven by random footpoint motion [E. R. Priest, J. F. Heyvaerts, and A. M. Title, Astrophys. J., 576, 533, 2002] is revisited. It is shown that if the magnetic field is driven to a statistically steady state, a large current density inversely proportional to the square root of resistivity can fill the whole volume and thus results in a heating rate independent of resistivity. However, the field structures are likely to become unstable and reconnect before they can reach the statistically steady state. The three-dimensional line-tied island coalescence instability -- a possible instability in such systems -- is studied with numerical simulations. Magnetic reconnection in this configuration, which contains neither magnetic nulls nor closed field lines, is discussed. A generalization of the concept of quasi-separatrix layers and a new criterion for the detection of such layers is developed. The new criterion is shown to correlate strongly with reconnection sites. Scaling results from higher resolution simulations will be discussed. This research is supported by a National Science Foundation grant AST-0434322 and by the National Aeronautics and Space Administration.

Ng, C.; Bhattacharjee, A.

2006-12-01

434

1/13/11 12:12 PMProstate cancer risk tied to DNA changes; Discovery may spur research Page 1 of 3https://secure.pqarchiver.com/boston/access/1248324341.html?FMT=F...e+cancer+risk+tied+to+DNA+changes%3B+Discovery+may+spur+research  

E-print Network

1/13/11 12:12 PMProstate cancer risk tied to DNA changes; Discovery may spur research Page 1 of 3https://secure.pqarchiver.com/boston/access/1248324341.html?FMT=F...e+cancer+risk+tied+to+DNA+changes%3B Prostate cancer risk tied to DNA changes; Discovery may spur research [1 Edition] Boston Globe - Boston

Reich, David

435

Near-Field Enhanced UV Resonance Raman Spectroscopy Using Aluminum Bow-tie Nano-antenna  

SciTech Connect

An aluminum bow-tie nano-antenna is combined with the resonance Raman eect in the deep ultraviolet to dramatically increase the sensitivity of Raman spectra to a small volume of material, such as benzene used here. We further demonstrate gradient-eld Raman peaks for several strong IR modes. We achieve a gain of 105 in signal intensity from the near eld enhancement due to the surface plasmon resonance in the aluminum nanostructure. The on-line resonance enhancement contributes another factor of several thousands, limited by the laser line width. Thus, an overall gain of hundreds of million is achieved.

Li, Ling [North Carolina State University; Lim, Shuang Fang [North Carolina State University; Puretzky, Alexander A [ORNL; Riehn, Robert [North Carolina State University; Hallen, Hans [North Carolina State University

2012-01-01

436

Static Dissipative Cable Ties, Such as for Radiation Belt Storm Probes  

NASA Technical Reports Server (NTRS)

Methods of cyclically heating and cooling an article formed of a static dissipative ETFE resin, such as to reduce an electrical resistivity and/or to increase a tensile strength of the article, and methods of irradiating an article formed of a static dissipative ETFE resin, such as to increase a tensile strength of the article. Also disclosed herein are articles formed of a static dissipative ETFE resin, and processed in accordance with methods disclosed herein. Such an article may include, for example and without limitation, a cable strap to wrap, support, and/or secure one or more wires or cables, such as a cable tie.

Langley, Patrick T. (Inventor); Siddique, Fazle E. (Inventor)

2013-01-01

437

SEG 1994 Fall distinguished lecture: The seismic wavelet, well ties, and the search for stratigraphic traps  

SciTech Connect

In most mature hydrocarbon provinces it is estimated that 40% of the oil is found in stratigraphic traps, which are often very difficult to identify on seismic data directly. In this article, it is suggested that the difficulty is caused by three related problems: deconvolution, multiple removal (especially in marine data), and well ties. To identify the seismic event correctly from well logs, it is convenient to process the data to zero phase, for then the peak in the wavelet occurs at the reflection time.

Ziolkowski, A. [Univ. of Edinburgh (United Kingdom)

1995-12-31

438

Link Prediction and the Role of Stronger Ties in Networks of Face-to-Face Proximity  

E-print Network

Understanding the structures why links are formed is an important and prominent research topic. In this paper, we therefore consider the link prediction problem in face-to-face contact networks, and analyze the predictability of new and recurring links. Furthermore, we study additional influence factors, and the role of stronger ties in these networks. Specifically, we compare neighborhood-based and path-based network proximity measures in a threshold-based analysis for capturing temporal dynamics. The results and insights of the analysis are a first step onto predictability applications for human contact networks, for example, for improving recommendations.

Scholz, Christoph; Stumme, Gerd

2014-01-01

439

Production and Transmission Measurement  

E-print Network

;Bioluminescence in squid · Created by symbiotic Vibrio bacteria · Used for counter- illumination to downwelling, interference, scattering, bioluminescence · Transmission through the environment · Optimal hue, contrast of color: bioluminescence Bioluminescence is common among marine organisms, especially deep-sea fishes. #12

Wilkinson, Gerald S.

440

Borehole data transmission apparatus  

DOEpatents

A borehole data transmission apparatus is described whereby a centrifugal pump impeller(s) is used to provide a turbine stage having substantial pressure characteristics in response to changing rotational speed of a shaft for the pressure pulsing of data from the borehole through the drilling mud to the surface of the earth.

Kotlyar, O.M.

1993-03-23

441

Transmission Losses Chris Rogers,  

E-print Network

to cooling Flipping magnetic lattice Stopping power of absorbers greater for protons, electrons #12;Beam power in front end Assume 30 % muon (pion) transmission through front end => 10 kW peak muon (pion) beam power in front end What about secondaries? Look at MARS file (courtesy of Harold) Track through

McDonald, Kirk

442

Transmission planning in China  

SciTech Connect

Though China is well along in restructuring its power markets, it still has some way to travel before economic considerations receive adequate weight in transmission planning decisions. Adoption of more sophisticated tools such as multi-agent modeling will help China continue in its progress in achieving this. (author)

Dong, Jun; Zhang, Jing

2009-07-15

443

Autonomous data transmission apparatus  

DOEpatents

A autonomous borehole data transmission apparatus for transmitting measurement data from measuring instruments at the downhole end of a drill string by generating pressure pulses utilizing a transducer longitudinally responsive to magnetic field pulses caused by electrical pulses corresponding to the measured downhole parameters.

Kotlyar, Oleg M. (4675 W. 3825 S, Salt Lake City, UT 84120)

1997-01-01

444

Autonomous data transmission apparatus  

DOEpatents

A autonomous borehole data transmission apparatus is described for transmitting measurement data from measuring instruments at the downhole end of a drill string by generating pressure pulses utilizing a transducer longitudinally responsive to magnetic field pulses caused by electrical pulses corresponding to the measured downhole parameters. 4 figs.

Kotlyar, O.M.

1997-03-25

445

Continuously variable transmission  

SciTech Connect

This patent describes a continuously variable transmission for transmitting a torque from an engine to a final reduction gear, comprising: an input shaft connected with the engine at one end thereof; a continuously variable transmission means having a driving pulley with a fixed member and a movable member, the movable member being actuated by an hydraulic cylinder to form a V-shaped opening between the fixed member and movable member, a driven pulley with another fixed member and another movable member. The other movable member is similarly actuated by another hydraulic cylinder to form another V-shaped opening between the other fixed member and the other movable member, and a belt member spanning the pulleys provides for a continuously variable transmission ratio; a planetary gear unit including a sun gear, a plurality of pinion gears which mesh with the sun gear and are connected with the driven pulley and a ring gear which meshes with the plurality of pinion gears; and a rotation transmitting means for transmitting rotation of the input shaft to the planetary gear unit. The rotation transmitting means is provided between the input shaft and the planetary gear unit and includes a shaft connected with the sun gear of the planetary gear unit and a first gear connected with the input shaft. The first gear is located between the engine and the continuously variable transmission means.

Itoh, H.; Okada, M.

1986-11-25

446

Sequential toxicity identification evaluation (TIE) for characterizing toxicity of Venice Lagoon sediments: comparison of two different approaches.  

PubMed

A toxicity identification evaluation phase-I (TIE-1) procedure was carried out on five pore water samples extracted from sediments of the Venice Lagoon previously investigated to assess both chemical contamination and toxic effects on the biota. Two different sequential TIE procedures were tested. A first sequence (TIE-1) provided for adding Na2S2O3, adding Na-EDTA, filtering, elution through a C18-SPE column and removing ammonia using the macroalgae Ulva rigida Agardh 1823, while a second procedure (TIE-2) was set up using U. rigida treatment for ammonia removal as first step, keeping unchanged the sequence of the other manipulations. Two different exposure time to the macroalgae were tested (3-h and 15-h). Sperm-cell toxicity test with the echinoid Paracentrotus lividus and embryotoxicity tests with the bivalves Mytilus galloprovincialis and Crassostrea gigas were performed on pore-water samples to assess the effect of the sequential treatments on the overall toxicity. The results confirmed that ammonia contribution to toxicity is strong in most of the samples and that metals, specially Cu, are of concern at least in three sites. The TIE-2 procedure provided more reliable results for the samples characterized by high ammonia contribution to the overall toxicity, whereas the results of TIE-1 and TIE-2 were equivalent for the samples where ammonia contribution was not prevailing. Chemical analyses and test results showed that a 3-h U. rigida exposure is suitable to remove ammonia toxicity minimizing potential metal up-take. PMID:18722012

Picone, Marco; Bergamin, Martina; Volpato, Elisa; Delaney, Eugenia; Turetta, Clara; Ranaldo, Martina; Capodaglio, Gabriele; Nasci, Cristina

2009-02-01

447

65 FR 810 - Regional Transmission Organizations  

Federal Register 2010, 2011, 2012, 2013

...Stresses on the Transmission Grid 2. Successes, Failures and...the Nation's transmission grid is being used more heavily and...interconnected transmission grid encompassing more than 100 transmission...increasing difficulties in accurately computing Total Transmission...

2000-01-06

448

Application of transmission reliability assessment in probabilistic planning of BC Hydro Vancouver South Metro system  

SciTech Connect

This paper presents a basic method of probabilistic transmission planning used in BC Hydro. The method is based on transmission system reliability evaluation and an overall economic analysis including damage cost due to system unreliability. Four alternatives for the Vancouver South Metro system of BC Hydro have been evaluated using the method. The first one is addition of a 230 kV line, the second one local configuration changes (cuts and ties) in the 69 kV subsystem, the third one operational manipulation and the fourth one curtailable industrial load management. The third and the fourth alternatives can be considered as non-investment reinforcements. The results indicate that the cut-and-tie alternative in the 69 kv subsystem can provide the same reliability level as the 230 kV line addition but with much lower investment and therefore the initial 230 kV line addition could be deferred by 10 years. This deferral allows a major capital expenditure of $26.4 million (1997 $) to be avoided. The studies show that the application of quantitative transmission reliability assessment in power system planning can provide utilities with significant economic benefits.

Li, W.; Mansour, Y.; Korczynski, J.K.; Mills, B.J. [BC Hydro, Vancouver, British Columbia (Canada). Regional System Planning] [BC Hydro, Vancouver, British Columbia (Canada). Regional System Planning

1995-05-01

449

Venous malformation-causative TIE2 mutations mediate an AKT-dependent decrease in PDGFB  

PubMed Central

Mutations in the endothelial cell (EC) tyrosine kinase receptor TIE2 cause inherited and sporadic forms of venous malformation. The recurrent somatic mutation L914F and common germline mutation R849W differ in terms of phosphorylation level, as well as sub-cellular localization and trafficking of the receptor. Previous studies have shed light on certain pathogenic properties of R849W, but the mechanisms of action of L914F are unknown. We used global gene expression profiling to study the effects of L914F on ECs. We found that L914F strongly dysregulates genes involved in vascular development, cell migration and extracellular matrix processing, while R849W has weak effects. We also demonstrate, for the first time, that TIE2-mutant ECs are deficient in the production of PDGFB, both in vitro and ex vivo in patient tissues. This defect is mediated by the chronic, ligand-independent activation of AKT by the mutant receptors. Inadequate secretion of the major mural cell attractant likely plays an important role in the development of abnormal vascular channels, contributing to the characteristic paucity of surrounding vascular smooth muscle cells. PMID:23633549

Uebelhoer, Melanie; Nätynki, Marjut; Kangas, Jaakko; Mendola, Antonella; Nguyen, Ha-Long; Soblet, Julie; Godfraind, Catherine; Boon, Laurence M.; Eklund, Lauri; Limaye, Nisha; Vikkula, Miikka

2013-01-01

450

Ground-state magnetic phase diagram of bow-tie graphene nanoflakes in external magnetic field  

SciTech Connect

The magnetic phase diagram of a ground state is studied theoretically for graphene nanoflakes of bow-tie shape and various sizes in external in-plane magnetic field. The tight-binding Hamiltonian supplemented with Hubbard term is used to model the electronic structure of the systems in question. The existence of the antiferromagnetic phase with magnetic moments localized at the sides of the bow-tie is found for low field and a field-induced spin-flip transition to ferromagnetic state is predicted to occur in charge-undoped structures. For small nanoflake doped with a single charge carrier, the low-field phase is ferrimagnetic and a metamagnetic transition to ferromagnetic ordering can be forced by the field. The critical field is found to decrease with increasing size of the nanoflake. The influence of diagonal and off-diagonal disorder on the mentioned magnetic properties is studied. The effect of off-diagonal disorder is found to be more important than that of diagonal disorder, leading to significantly widened distribution of critical fields for disordered population of nanoflakes.

Sza?owski, Karol, E-mail: kszalowski@uni.lodz.pl, E-mail: kszalowski@wp.pl [Department of Solid State Physics, Faculty of Physics and Applied Informatics, University of ?ód?, ul. Pomorska 149/153, 90-236 ?ód? (Poland)

2013-12-28

451

Automation of tie-pointing procedure for the geocoding of satellite images  

NASA Astrophysics Data System (ADS)

This paper describes two recent developments at the German Remote Sensing Data Centre, which aim at the automatic generation of tie points for optical sensors and radar images, and the operational utilization of automatic tiepointing for ERS-1SAR data. In the first paper, a concept for the multitemporal registration of satellite images from optical sensors is described. This approach aims at the automated extraction of corresponding points in the images. It compresses the detection of distinct points by a so-called interest operator in one image. By cross correlation the corresponding points in the other images are traces. Subpixel accuracy is achieved by a least squares technique for digital image matching. Practical results are shown. where multitemporal image data from the Landsat TM sensor are used. The results are promising; improvements of the procedure are discussed. The second part of the paper describes the operation utilization of an automatic tie pointing, which has been realized for the geocoding of the ERS-1SAR data at the German Processing and Archiving Facility. significant features are extracted from reference data sets. The corresponding SAR image chips are stored in a database. These chips are correlated with the actual SAR data set. The procedure is describes as well as the accuracy achieved. For the time being, the determination of the reference chips is performed interactively. an outlook is given concerning several automatic approaches actually being investigated.

Strunz, G.; Knoepfle, W.; Roth, A.

1994-08-01

452

Black yeast habitat choices and species spectrum on high altitude creosote-treated railway ties.  

PubMed

Polyextremotolerant black yeast-like fungi thrive in moderately hostile environments where they are concomitantly subjected to several types of stress, such as toxicity, scarce nutrient availability, and high or low temperature extremes. Their ability to assimilate alkylbenzenes (toxic environmental pollutants) enhances their growth in harsh conditions, including on railway ties. Samples were collected using cotton swabs, premoistened with physiological saline, from 658 oak and concrete railway ties at six train stations in Turkey at altitudes ranging between 1026 and 1427 m. The samples were inoculated on malt extract agar supplemented with chloramphenicol, and incubated at 26 °C for 4 weeks. Twenty-four samples (3.6 %), 17 from oak and 7 from concrete (5.6 % vs. 2 %; P = 0.02), tested positive for fungi. Exophiala crusticola was found to be the most common species (n = 13), followed by Exophiala phaeomuriformis (n = 7) and Exophiala heteromorpha (n = 4). These results suggest that hydrocarbons, particularly creosote-treated oak woods, support the growth of black yeasts, some of which are opportunists in humans. PMID:24119407

Dö?en, Aylin; Ilkit, Macit; de Hoog, G Sybren

2013-10-01

453

Quasi-separatrix layer reconnection for nonlinear line-tied collisionless tearing modes  

NASA Astrophysics Data System (ADS)

Quasi-separatrix layer (QSL) diagnostics are used to diagnose nonlinear line-tied tearing modes using particle-in-cell code simulation results. For a force-free current sheet, nonlinear tearing mode cases are shown over a wide range of plasma lengths with line-tying boundary conditions at the ends of the plasma. The methods used for performing the field line integrations with noisy PIC data are described. The QSL diagnostics used are the squashing degree Q (Priest and Demoulin 1995 J. Geophys. Res. 100 23443) and the ideal magnetohydrodynamic (MHD) scalar potential ?i of Richardson and Finn (2012 Commun. Nonlinear Sci. Numer. Simul. 17 2132). We also introduce the non-ideal scalar potential ?n, the analog of the resistive MHD scalar potential ?r of Richardson and Finn (2012). These QSL diagnostics are compared with the helical flux contours of the primary modes. They are used in the late linear regime and near mode saturation. For non-overlapping islands, these diagnostics show the QSL associated with the X-lines and their separatrices. These are shown to indicate well field line behavior such as chaotic scattering and separatrix crossing. For overlapping islands, they indicate chaotic scattering behavior either related to Chirikov overlap (Chirikov 1979 Phys. Rep. 52 263) or to separatrix crossing (Tennyson et al 1986 Phys. Rev. Lett. 56 2117).

Finn, J. M.; Billey, Z.; Daughton, W.; Zweibel, E.

2014-06-01

454

Primary monocytes regulate endothelial cell survival through secretion of Angiopoietin-1 and activation of endothelial Tie2  

PubMed Central

Objective Monocyte recruitment and interaction with the endothelium is imperative to vascular recovery. Tie2 plays a key role in endothelial health and vascular remodeling. We studied monocyte-mediated Tie2/Angiopoietin signaling following interaction of primary monocytes with endothelial cells and its role in endothelial cell survival. Methods and results The direct interaction of primary monocytes with subconfluent endothelial cells resulted in transient secretion of Angiopoietin-1 from monocytes and the activation of endothelial Tie2. This effect was abolished by preactivation of monocytes with TNF?. While primary monocytes contained high levels of both Angiopoietin 1 and 2, endothelial cells contained primarily Angiopoietin 2. Seeding of monocytes on serum starved endothelial cells reduced caspase-3 activity by 46% ± 5.1%, and 52% ± 5.8% after TNF? treatment, and decreased detected single strand DNA levels by 41% ± 4.2% and 40± 3.5% respectively. This protective effect of monocytes on endothelial cells was reversed by Tie2 silencing with specific siRNA. The anti-apoptotic effect of monocytes was further supported by the activation of cell survival signaling pathways involving PI3K, STAT3 and AKT. Conclusions Monocytes and endothelial cells form a unique Tie2/Angiopoietin-1 signaling system which effects endothelial cell survival and may play critical a role in vascular remodeling and homeostasis. PMID:21273558

Schubert, Shai Y.; Benarroch, Alejandro; Monter-Solans, Juan; Edelman, Elazer R.

2011-01-01

455

High Soft-Error Tolerance Body-Tied Silicon-on-Insulator Technology with Partial Trench Isolation  

NASA Astrophysics Data System (ADS)

This paper presents soft-error tolerance for partially depleted silicon-on-insulator (SOI) devices with partial trench isolation (PTI) that realize a body-tied structure. Mechanism of charge collections due to alpha-particle strikes is clarified for a body-tied SOI device with the PTI structure and a body-floating SOI device. It is estimated that the soft-error tolerance of the body-floating SOI device is lower than that of the body-tied one because of parasitic bipolar action. Soft-error testing by using 0.18 µm 4 Mbit static random-access memory (SRAM) indicates that the body-tied SOI devices with the PTI structure have high soft-error tolerance as compared with bulk devices. The charge collections for the PTI structure are also investigated to mitigate the soft errors. It is demonstrated that the body-tied PTI SOI technology is one of the best solutions for high-performance system LSIs with high soft-error tolerance.

Hirano, Yuuichi; Iwamatsu, Toshiaki; Shiga, Katsuya; Nii, Koji; Sonoda, Kenichiro; Ipposhi, Takashi; Maegawa, Shigeto; Inoue, Yasuo

2008-01-01

456

Small passenger car transmission test; Chevrolet LUV transmission  

NASA Technical Reports Server (NTRS)

A 1978 Chevrolet LUV manual transmission tested per the applicable portions of a passenger car automatic transmission test code (SAE J65lb) which required drive performance, coast performance, and no load test conditions. Under these test conditions, the transmission attained maximum efficiencies in the upper ninety percent range for both drive performance tests and coast performance tests. The major results of this test (torque, speed, and efficiency curves) are presented. Graphs map the complete performance characteristics for the Chevrolet LUV transmission.

Bujold, M. P.

1980-01-01

457

Small passenger car transmission test; Ford C4 transmission  

NASA Technical Reports Server (NTRS)

A 1979 Ford C4 automatic transmission was tested per a passenger car automatic transmission test code (SAE J651b) which required drive performance, coast performance, and no load test conditions. Under these test conditions, the transmission attained maximum efficiencies in the mid-eighty percent range for both drive performance tests and coast performance tests. The major results of this test (torque, speed, and efficiency curves) are presented. Graphs map the complete performance characteristics for the Ford C4 transmission.

Bujold, M. P.

1980-01-01

458

Intercultural Transmission of Values: The Role of Transmission Belts.  

ERIC Educational Resources Information Center

Explored the effect of "transmission belts" (conditions favorable to cultural transmission within particular socioeconomic and cultural contexts) on the similarity of values between Turkish fathers and their sons. Data from father-son dyads in Germany indicated that transmission of values related to the collective value categories of humanism,…

Schonpflug, Ute

2001-01-01

459

Transmission and transmission control device for providing downshifting  

Microsoft Academic Search

This patent describes a transmission for a vehicle, comprising a transmission mechanism, and an automatic control device; the transmission mechanism comprising: an input shaft; an output shaft, a first on-off clutch; a second on-off clutch; a first one way clutch; a second one way clutch; a first gear train having a first reduction gear ratio; a second gear train having

H. Ito; T. Akashi

1986-01-01

460

Advanced Rotorcraft Transmission Program  

NASA Technical Reports Server (NTRS)

The U.S. Army/NASA Advanced Rotorcraft Transmission (ART) program is charged with developing and demonstrating a light, quiet, and durable drivetrain for next-generation rotorcraft in two classes: a 10,000-20,000 Future Attack Air Vehicle capable of both tactical ground support and air-to-air missions, and a 60,000-80,000 lb Advanced Cargo Aircraft, for heavy-lift field-support operations. Specific ART objectives encompass a 25-percent reduction in drivetrain weight, a 10-dB noise level reduction at the transmission source, and the achievement of a 5000-hr MTBF. Four candidate drivetrain systems have been carried to a conceptual design stage, together with projections of their mission performance and life-cycle costs.

Bill, Robert C.

1990-01-01

461

Advanced transmission studies  

NASA Technical Reports Server (NTRS)

The NASA Lewis Research Center and the U.S. Army Aviation Systems Command share an interest in advancing the technology for helicopter propulsion systems. In particular, this paper presents highlights from that portion of the program in drive train technology and the related mechanical components. The major goals of the program are to increase the life, reliability, and maintainability; reduce the weight, noise, and vibration; and maintain the relatively high mechanical efficiency of the gear train. The current activity emphasizes noise reduction technology and analytical code development followed by experimental verification. Selected significant advances in technology for transmissions are reviewed, including advanced configurations and new analytical tools. Finally, the plan for future transmission research is presented.

Coy, John J.; Bill, Robert C.

1988-01-01

462

Drill string transmission line  

DOEpatents

A transmission line assembly for transmitting information along a downhole tool comprising a pin end, a box end, and a central bore traveling between the pin end and the box end, is disclosed in one embodiment of the invention as including a protective conduit. A transmission line is routed through the protective conduit. The protective conduit is routed through the central bore and the ends of the protective conduit are routed through channels formed in the pin end and box end of the downhole tool. The protective conduit is elastically forced into a spiral or other non-linear path along the interior surface of the central bore by compressing the protective conduit to a length within the downhole tool shorter than the protective conduit.

Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David S. (Lehi, UT); Bradford, Kline (Orem, UT); Fox, Joe (Spanish Fork, UT)

2006-03-28

463

Continuously variable transmission  

SciTech Connect

A continuously variable transmission means is described for motor vehicles including a driving pulley with a fixed member and a movable member. The movable member is actuated by a hydraulic cylinder to form a V-shaped opening, a driven pulley with another fixed member and another movable member. Another movable member is actuated by another hydraulic cylinder to form another V-shaped opening, and a flexible endless member spans the driving and driven pulleys. The continuously variable transmission means comprises such items as: a first output shaft; a first gear; a second gear; a reverse gear; a second output shaft; a third gear; a jaw clutch mounted; a first one-way clutch; a fourth gear; a hydraulic clutch means; and a second one-way clutch.

Tatara, Y.; Okawa, S.; Matsui, H.; Nakawaki, Y.

1987-04-28

464

Hybrid transmission corridor study  

Microsoft Academic Search

Adding an HVDC transmission line to an existing right-of-way with an HVAC line can increase power transfer for a given right-of-way width. However, interaction between the two line types can change some electrical effects unless a critical distance is exceeded. Researchers conducted full-scale, two-phase tests using an HVAC test span paralleled by a two-pole HVDC test span to simulate sharing

Clairmont

1991-01-01

465

TIE-POINTS, REGULAR CLOSED SETS, AND COPIES Abstract. We show that it is consistent to have a non-trivial  

E-print Network

TIE-POINTS, REGULAR CLOSED SETS, AND COPIES OF N ALAN DOW Abstract. We show that it is consistent. A point U of N is said to be a tie-point if there are closed sets A, B covering N satisfying that A \\ B B \\ A is the single point U. We shall use A U B to denote when this is the case, and say that A, B is a tie-point pair

Dow, Alan

466

Intrasperm vertical symbiont transmission  

PubMed Central

Symbiotic bacteria are commonly associated with cells and tissues of diverse animals and other organisms, which affect hosts’ biology in a variety of ways. Most of these symbionts are present in the cytoplasm of host cells and maternally transmitted through host generations. The paucity of paternal symbiont transmission is likely relevant to the extremely streamlined sperm structure: the head consisting of condensed nucleus and the tail made of microtubule bundles, without the symbiont-harboring cytoplasm that is discarded in the process of spermatogenesis. Here, we report a previously unknown mechanism of paternal symbiont transmission via an intrasperm passage. In the leafhopper Nephotettix cincticeps, a facultative Rickettsia symbiont was found not only in the cytoplasm but also in the nucleus of host cells. In male insects, strikingly, most sperm heads contained multiple intranuclear Rickettsia cells. The Rickettsia infection scarcely affected the host fitness including normal sperm functioning. Mating experiments revealed both maternal and paternal transmission of the Rickettsia symbiont through host generations. When cultured with mosquito and silkworm cell lines, the Rickettsia symbiont was preferentially localized within the insect cell nuclei, indicating that the Rickettsia symbiont itself must have a mechanism for targeting nucleus. The mechanisms underlying the sperm head infection without disturbing sperm functioning are, although currently unknown, of both basic and applied interest. PMID:24799707

Watanabe, Kenji; Yukuhiro, Fumiko; Matsuura, Yu; Fukatsu, Takema; Noda, Hiroaki

2014-01-01

467

Heterosexual HIV transmission.  

PubMed

Most of the people now living with HIV acquired the infection through heterosexual intercourse. HIV transmission has been facilitated by (a) concomitant sexually transmitted diseases (STDs), (b) the presence of social conditions that create core groups who have frequent and numerous partners, (c) sexual practices associated with bleeding (i.e., trauma, sex during menses) as well as noncircumcision, (d) cervical ectopy, and (e) anal sex. HIV may be found both cell-free and as intracellular virus in genital tract secretion, and may be sexually transmitted through either mechanism. HIV titers in genital tract secretions vary by several logs between people and within individuals over time, being greatest just after seroconversion and with advanced immunosuppression, concomitant genital tract inflammation (including STDs), and decreasing (but not to zero) with antiretroviral therapy. The per-contact transmission efficiency rate is highly variable, ranging from > 3% to < 1 per thousand contacts, with male-to-female HIV transmission generally being more efficient than vice versa. Control of the heterosexual HIV epidemic will necessitate a multidisciplinary approach, utilizing direct biological approaches (e.g., culturally specific and behavioral interventions, as well as more fundamental community changes that decrease societal norms that augment unsafe practices. PMID:8665090

Mayer, K H; Anderson, D J

1995-12-01

468

RICE UNIVERSITY BEAMSWITCH: DIRECTIONAL TRANSMISSION  

E-print Network

RICE UNIVERSITY BEAMSWITCH: DIRECTIONAL TRANSMISSION FOR ENERGY-EFFICIENT WIRELESS COMMUNICATION Directional Transmission for Energy-Efficient Wireless Communication on Mobile Sys- tems Hasan Huseyin Dumanli Directional communication has the potential to improve both the energy efficiency of wireless communication

Zhong, Lin

469

Comparing series of rankings with ties by using complex networks: An analysis of the spanish stock market (IBEX-35 index)  

E-print Network

In this paper we extend the concept of Competitivity Graph to compare series of rankings with ties ({\\em partial rankings}). We extend the usual method used to compute Kendall's coefficient for two partial rankings to the concept of evolutive Kendall's coefficient for a series of partial rankings. The theoretical framework consists of a four-layer multiplex network. Regarding the treatment of ties, our approach allows to define a tie between two values when they are close {\\em enough}, depending on a threshold. We show an application using data from the Spanish Stock Market; we analyse the series of rankings defined by $25$ companies that have contributed to the IBEX-35 return and volatility values over the period 2003 to 2013.

Pedroche, F; Garcia, E; Romance, M; Sanchez, V E

2014-01-01

470

Polycyclic aromatic hydrocarbon (PAH) content of soil and olives collected in areas contaminated with creosote released from old railway ties.  

PubMed

Simple sample preparation procedures involving sonication and solid phase extraction (SPE), followed by reversed-phase high performance liquid chromatography (HPLC) and spectrofluorometric detection, were used to analyse polycyclic aromatic hydrocarbons (PAHs) in soil and olives collected in areas contaminated with creosote-treated railway ties. Very high PAH contents (with amounts ranging from 114.7 to 2157.2 and from 167.3 to 3121.8 microg kg(-1) dry weight for total light PAHs and total heavy PAHs, respectively) were found in soil sampled up to 1 m from the source of contamination. The PAH load decreased rapidly with the distance from the railway ties. High amounts of light PAHs, up to 6359.9 microg kg(-1), were also found in oil extracted from olives collected in a rural area where old railway ties were stored. No appreciable transfer of heavy PAHs and benzo[a]pyrene was observed in oil samples. PMID:17689591

Moret, Sabrina; Purcaro, Giorgia; Conte, Lanfranco S

2007-11-01

471

Tie-dyed2 Encodes a Callose Synthase That Functions in Vein Development and Affects Symplastic Trafficking within the Phloem of Maize Leaves12[C][W][OA  

PubMed Central

The tie-dyed2 (tdy2) mutant of maize (Zea mays) displays variegated green and yellow leaves. Intriguingly, the yellow leaf tissues hyperaccumulate starch and sucrose, the soluble sugar transported long distance through the phloem of veins. To determine the molecular basis for Tdy2 function, we cloned the gene and found that Tdy2 encodes a callose synthase. RNA in situ hybridizations revealed that in developing leaves, Tdy2 was most highly expressed in the vascular tissue. Comparative expression analysis with the vascular marker maize PINFORMED1a-yellow fluorescent protein confirmed that Tdy2 was expressed in developing vein tissues. To ascertain whether the defect in tdy2 leaves affected the movement of sucrose into the phloem or its long-distance transport, we performed radiolabeled and fluorescent dye tracer assays. The results showed that tdy2 yellow leaf regions were defective in phloem export but competent in long-distance transport. Furthermore, transmission electron microscopy of tdy2 yellow leaf regions showed incomplete vascular differentiation and implicated a defect in cell-to-cell solute movement between phloem companion cells and sieve elements. The disruption of sucrose movement in the phloem in tdy2 mutants provides evidence that the Tdy2 callose synthase functions in vascular maturation and that the vascular defects result in impaired symplastic trafficking into the phloem translocation stream. PMID:22932757

Slewinski, Thomas L.; Baker, R. Frank; Stubert, Adam; Braun, David M.

2012-01-01

472

Transmission ratio control system for a continuously variable transmission  

SciTech Connect

This patent describes a control system for a continuously variable transmission for transmitting power of an internal combustion engine controlled by an accelerator pedal, the transmission comprising a drive pulley having a hydraulically shiftable first disc and a first hydraulic cylinder for operating the disc, a driven pulley having a hydraulically shiftable second disc and a second hydraulic cylinder for operating the second disc, and a belt engaged with both pulleys, the control system including a first hydraulic circuit having a pump for supplying oil to both of the hydraulic cylinders, a transmission ratio control valve having a spool for controlling the oil supplied to the first hydraulic cylinder of the drive pulley, shifting means for shifting the spool, sensing means for sensing operating conditions of the engine and the transmission, actual transmission ratio producing means responsive to the sensed operating conditions for producing means responsive to the sensed signal representing the actual transmission ratio of the transmission.

Miyawaki, M

1989-05-23

473

[Oral transmission of Chagas' disease].  

PubMed

The traditional transmission pathways of Chagas' disease are vectorial, transfusional, transplacental and organ transplantation. However, oral transmission is gaining importance. The first evidence of oral transmission was reported in Brazil in 1965. Nowadays the oral route is the transmission mode in 50% of cases in the Amazon river zone. Oral infection is produced by the ingestion of infected triatomine bugs or their feces, undercooked meat from infested host animals and food contaminated with urine or anal secretion of infected marsupials. Therefore travelers to those zones should be advised about care to be taken with ingested food. In Chile, this new mode of transmission should be considered in public health policies. PMID:21773665

Toso M, Alberto; Vial U, Felipe; Galanti, Norbel

2011-02-01

474

Strong ties promote the epidemic prevalence in susceptible-infected-susceptible spreading dynamics  

E-print Network

Understanding spreading dynamics will benefit society as a whole in better preventing and controlling diseases, as well as facilitating the socially responsible information while depressing destructive rumors. In network-based spreading dynamics, edges with different weights may play far different roles: a friend from afar usually brings novel stories, and an intimate relationship is highly risky for a flu epidemic. In this article, we propose a weighted susceptible-infected-susceptible model on complex networks, where the weight of an edge is defined by the topological proximity of the two associated nodes. Each infected individual is allowed to select limited number of neighbors to contact, and a tunable parameter is introduced to control the preference to contact through high-weight or low-weight edges. Experimental results on six real networks show that the epidemic prevalence can be largely promoted when strong ties are favored in the spreading process. By comparing with two statistical null models respe...

Cui, Ai-Xiang; Zhou, Tao

2013-01-01

475

Molecular ties between the cell cycle and differentiation in embryonic stem cells  

PubMed Central

Attainment of the differentiated state during the final stages of somatic cell differentiation is closely tied to cell cycle progression. Much less is known about the role of the cell cycle at very early stages of embryonic development. Here, we show that molecular pathways involving the cell cycle can be engineered to strongly affect embryonic stem cell differentiation at early stages in vitro. Strategies based on perturbing these pathways can shorten the rate and simplify the lineage path of ES differentiation. These results make it likely that pathways involving cell proliferation intersect at various points with pathways that regulate cell lineages in embryos and demonstrate that this knowledge can be used profitably to guide the path and effectiveness of cell differentiation of pluripotent cells. PMID:24979803

Li, Victor C.; Kirschner, Marc W.

2014-01-01

476

Selective removal of organic contaminants from sediments: A methodology for toxicity identification evaluations (TIEs)  

USGS Publications Warehouse

Aqueous slurries of a test sediment spiked with dibenz[a,h]anthracene, 2,4,5,2',4',5'-hexachlorobiphenyl, p,p'-DDE, or phenanthrene were subjected to decontamination experimentation. The spiked sediments were agitated at elevated temperatures for at least 96 h in the presence of either of the two contaminant-absorbing media: clusters of polyethylene membrane or lipid- containing semipermeable membrane devices (SPMDs). The effects of treatment temperature and surface area of media on the removal of contaminants were explored. This work is part of a larger methodology for whole-sediment toxicity identification evaluation (TIE). A method is being sought that is capable of detoxifying sediments with respect to organic contaminants while leaving toxicity attributable to inorganic contaminants unaffected. (C) 2000 Elsevier Science Ltd.

Lebo, J.A.; Huckins, J.N.; Petty, J.D.; Ho, K.T.; Stern, E.A.

2000-01-01

477

Source and event selection for radio-planetary frame-tie measurements using the Phobos Landers  

NASA Technical Reports Server (NTRS)

The Soviet Phobos Lander mission will place two spacecraft on the Martian moon Phobos in 1989. Measurements of the range from Earth-based stations to the landers will allow an accurate determination of the ephemerides of Phobos and Mars. Delta Very Long Base Interferometry (VLBI) between the landers and compact radio sources nearby on the sky will be used to obtain precise estimates of the angular offset between the radio and planetary reference frames. The accuracy of this frame-tie estimate is expected to be in the vicinity of 10 mrad, depending on how well several error sources can be controlled (calibrated or reduced). Many candidate radio sources for VLBI measurements were identified, but additional work is necessary to select those sources which have characteristics appropriate to the present application. Strategies for performing the source selection are described.

Linfield, R.; Ulvestad, J.

1988-01-01

478

The design and development of a spacecraft appendage tie down mechanism  

NASA Technical Reports Server (NTRS)

The design and evolution is described of a spacecraft Appendage Tie Down Mechanism (ATDM). Particular emphasis is paid to the mechanical aspects of using dry lubricants to increase the efficiency of acme threads and worm gearing. The ATDM consists of five major components. These are a dc torque motor, a worm gear speed reducer, the tension bolt (or T-bolt), nut capture and centering jaws and the capture nut. In addition, there are several minor components such as limit switch assemblies and an antibackdrive mechanism which couples the drive motor to the worm shaft. A development model of the ATDM in various configurations was under test for some time. In its latest version, it has successfully completed thermal vacuum testing, vibration testing, and extended life testing.

Nygren, W. D.; Head, R.

1985-01-01

479

Using Space Telescope to tie the HIPPARCOS and extragalactic reference frames together  

NASA Technical Reports Server (NTRS)

Hubble Space Telescope observations will be made to tie the HIPPARCOS Instrumental System (HIS) to extragalactic objects, to determine the overall rotation of the HIS with respect to a set of extragalactic objects; to compare the HIS to an accurate radio reference frame; and to look for motions in the optical centroids of compact extragalactic objects at the level of 0.001 arcseconds per year. About 75 radio sources and extragalactic objects will be chosen from the initial group of 414 pairs. The egos will have their positions and proper motions determined relative to the HIPPARCOS Input Catalog stars. The candidate stars are being screened by ground based speckle interferometry to select a final set.

Hemenway, P. D.; Duncombe, R. L.; Jefferys, W. H.; Shelus, P. J.

1985-01-01

480

The emergence and role of strong ties in time-varying communication networks  

E-print Network

In most social, information, and collaboration systems the complex activity of agents generates rapidly evolving time-varying networks. Temporal changes in the network structure and the dynamical processes occurring on its fabric are usually coupled in ways that still challenge our mathematical or computational modelling. Here we analyse a mobile call dataset describing the activity of millions of individuals and investigate the temporal evolution of their egocentric networks. We empirically observe a simple statistical law characterizing the memory of agents that quantitatively signals how much interactions are more likely to happen again on already established connections. We encode the observed dynamics in a reinforcement process defining a generative computational network model with time-varying connectivity patterns. This activity-driven network model spontaneously generates the basic dynamic process for the differentiation between strong and weak ties. The model is used to study the effect of time-varyi...

Karsai, Márton; Vespignani, Alessandro

2014-01-01

481

The strength-of-weak-ties perspective on creativity: a comprehensive examination and extension.  

PubMed

Disentangling the effects of weak ties on creativity, the present study separated, both theoretically and empirically, the effects of the size and strength of actors' idea networks and examined their joint impact while simultaneously considering the separate, moderating role of network diversity. I hypothesized that idea networks of optimal size and weak strength were more likely to boost creativity when they afforded actors access to a wide range of different social circles. In addition, I examined whether the joint effects of network size, strength, and diversity on creativity were further qualified by the openness to experience personality dimension. As expected, results indicated that actors were most creative when they maintained idea networks of optimal size, weak strength, and high diversity and when they scored high on the openness dimension. The implications of these results are discussed. PMID:20476837

Baer, Markus

2010-05-01

482

Planetary Transmission Diagnostics  

NASA Technical Reports Server (NTRS)

This report presents a methodology for detecting and diagnosing gear faults in the planetary stage of a helicopter transmission. This diagnostic technique is based on the constrained adaptive lifting algorithm. The lifting scheme, developed by Wim Sweldens of Bell Labs, is a time domain, prediction-error realization of the wavelet transform that allows for greater flexibility in the construction of wavelet bases. Classic lifting analyzes a given signal using wavelets derived from a single fundamental basis function. A number of researchers have proposed techniques for adding adaptivity to the lifting scheme, allowing the transform to choose from a set of fundamental bases the basis that best fits the signal. This characteristic is desirable for gear diagnostics as it allows the technique to tailor itself to a specific transmission by selecting a set of wavelets that best represent vibration signals obtained while the gearbox is operating under healthy-state conditions. However, constraints on certain basis characteristics are necessary to enhance the detection of local wave-form changes caused by certain types of gear damage. The proposed methodology analyzes individual tooth-mesh waveforms from a healthy-state gearbox vibration signal that was generated using the vibration separation (synchronous signal-averaging) algorithm. Each waveform is separated into analysis domains using zeros of its slope and curvature. The bases selected in each analysis domain are chosen to minimize the prediction error, and constrained to have the same-sign local slope and curvature as the original signal. The resulting set of bases is used to analyze future-state vibration signals and the lifting prediction error is inspected. The constraints allow the transform to effectively adapt to global amplitude changes, yielding small prediction errors. However, local wave-form changes associated with certain types of gear damage are poorly adapted, causing a significant change in the prediction error. The constrained adaptive lifting diagnostic algorithm is validated using data collected from the University of Maryland Transmission Test Rig and the results are discussed.

Lewicki, David G. (Technical Monitor); Samuel, Paul D.; Conroy, Joseph K.; Pines, Darryll J.

2004-01-01

483

Automated manual transmission clutch controller  

DOEpatents

A powertrain system for a hybrid vehicle. The hybrid vehicle includes a heat engine, such as a diesel engine, and an electric machine, which operates as both an electric motor and an alternator, to power the vehicle. The hybrid vehicle also includes a manual-style transmission configured to operate as an automatic transmission from the perspective of the driver. The engine and the electric machine drive an input shaft which in turn drives an output shaft of the transmission. In addition to driving the transmission, the electric machine regulates the speed of the input shaft in order to synchronize the input shaft during either an upshift or downshift of the transmission by either decreasing or increasing the speed of the input shaft. When decreasing the speed of the input shaft, the electric motor functions as an alternator to produce electrical energy which may be stored by a storage device. Operation of the transmission is controlled by a transmission controller which receives input signals and generates output signals to control shift and clutch motors to effect smooth launch, upshift shifts, and downshifts of the transmission, so that the transmission functions substantially as an automatic transmission from the perspective of the driver, while internally substantially functioning as a manual transmission.

Lawrie, Robert E. (9375 Kearney Rd., Whitmore Lake, MI 48189); Reed, Jr., Richard G. (3003 Bembridge, Royal Oak, MI 48073); Rausen, David J. (519 S. Gaylord St., Denver, CO 80209)

1999-11-30

484

Challenging Ties between State and Tobacco Industry: Advocacy Lessons from India  

PubMed Central

Background: Globally, tobacco use is a major public health concern given its huge morbidity and mortality burden that is inequitably high in low- and middle-income countries. The World Health Organization has suggested banning the advertisement, promotion and sponsorship of tobacco. However, governments in some countries, including India, are either directly engaged in tobacco industry operations or have a mandate to promote tobacco industry development. This paper analyses a short-term advocacy campaign that challenged the state-tobacco industry ties to draw lessons for effective public health advocacy. Method: This paper uses a case study method to analyze advocacy efforts in India to thwart the state-tobacco industry partnership: the Indian government’s sponsorship and support to a global tobacco industry event. The paper explores multiple strategies employed in the five-month advocacy campaign (May to October 2010) to challenge this state-industry tie. In doing so, we describe the challenges faced and the lessons learnt for effective advocacy. Results: Government withdrew participation and financial sponsorship from the tobacco industry event. Use of multiple strategies including engaging all concerned government agencies from the beginning, strategic use of media, presence and mobilization of civil society, and use of legal tools to gain information and judicial action, were complementary in bringing desired outcomes. Conclusion: Use of multiple and complementary advocacy strategies could lead to positive outcomes in a short-time campaign. The Framework Convention on Tobacco Control could form an important advocacy tool, especially in countries that have ratified it, to advocate for improvements in national tobacco control regulations. PMID:24688958

Bhojani, Upendra; Venkataraman, Vidya; Manganawar, Bheemaray

2013-01-01

485

Household structure, family ties, and psychological distress among U.S.-born and immigrant Latino women.  

PubMed

Latino women endorse the highest rates of past-month depressive symptoms relative to Latino men and non-Latino White men and women. Yet, research into the specific domains of family life that reduce or engender psychological distress among Latinas is sparse. We examine the hypothesis that indicators of household structure and family ties will relate to psychological distress among Latinas in the United States, and that these associations will vary by nativity status. We employed nationally representative data of Latina adults (N = 1,427) from the National Latino and Asian American Study. Nativity-stratified regression analyses revealed that strained family ties (i.e., family burden, family cultural conflict) were associated with greater levels of past-month psychological distress for both U.S.-born and immigrant Latinas. Yet, the effect of household structures on psychological distress differed by nativity status. Adjusting for sociodemographic factors, lower levels of household income were associated with greater psychological distress; and having children in the household was associated with lower levels of psychological distress among U.S.-born Latinas. In contrast, for immigrant Latinas, being out of the labor force was associated with greater levels of psychological distress. Results suggest that dynamics of both the household and family context predict differential as well as similar mental-health outcomes across segments of the Latina population in the United States. These findings underscore the need to understand the pathways by which different facets of family life-structural and social domains-relate to mental-health status among subgroups of Latinas. Our results also have implications for the development of tailored interventions to meet the specific needs of Latinas. PMID:23421842

Molina, Kristine M; Alcántara, Carmela

2013-02-01

486

Noise transmission into enclosures  

NASA Technical Reports Server (NTRS)

This paper describes analytical and experimental studies of noise transmission into rectangular and cylindrical enclosures. The solutions of the governing acoustic-structural equations are developed by modal decomposition of structural vibrations and the interior acoustic field. Particular attention is directed toward the low frequencies, that is, frequencies up through the first few structural and cavity resonant modes. The structural vibrations are driven by the external acoustic and/or mechanical point loads which are taken to be Gaussian stationary random processes. The structural models include rectangular panels and cylindrical shells.

Vaicaitis, R.; Bofilios, D. A.

1986-01-01

487

Conventional transmission electron microscopy  

PubMed Central

Researchers have used transmission electron microscopy (TEM) to make contributions to cell biology for well over 50 years, and TEM continues to be an important technology in our field. We briefly present for the neophyte the components of a TEM-based study, beginning with sample preparation through imaging of the samples. We point out the limitations of TEM and issues to be considered during experimental design. Advanced electron microscopy techniques are listed as well. Finally, we point potential new users of TEM to resources to help launch their project. PMID:24482357

Winey, Mark; Meehl, Janet B.; O'Toole, Eileen T.; Giddings, Thomas H.

2014-01-01

488

Heat transmission in Relativity  

E-print Network

The simultaneous study of deformation and heat transmission in a bar was ignored for about 150 years. The traditional Fourier equation just allows to study the evolution of temperature in a undeformable bar. The search for its relativistic variant is a task which must fail because in Relativity there are no undeformable bars. Rigid bodies, in the sense as rigid as possible, are deformables. In this work we show how to write in Relativity the system of equations necessary to study simultaneously deformation and temperature evolution along a rigid bar.

A. Brotas; J. C. Fernandes

2003-07-16

489

Lightning proof transmission lines  

SciTech Connect

Lightning is prone to strike electrical transmission and distribution lines. Design of protection is difficult. Failure to design for the worst case conditions cost U.S.A. utilities 20 million annually. These costs can be prevented. During the past 16 years, LEC, Inc. has developed and proven a system that prevents strikes as well as insulator flashover from nearby strikes. LEC's Dual Dissipator System, presented in this paper, replaces the need for the static line for lightning considerations, eliminating the need for lightning arrestors. The insulation requirements transformers and switchgear can be reduced which reduce original costs.

Carpenter, R.B. Jr.; Drabkin, M. (Lightning Elimination Associates, Santa Fe Springs, CA (USA))

1988-01-01

490

Wildfire Risk Transmission in the Colorado Front Range, USA.  

PubMed

Wildfires are a global phenomenon that in some circumstances can result in human casualties, economic loss, and ecosystem service degradation. In this article we spatially identify wildfire risk transmission pathways and locate the areas of highest exposure of human populations to wildland fires under severe, but not uncommon, weather events. We quantify varying levels of exposure in terms of population potentially affected and tie the exposure back to the spatial source of the risk for the Front Range of Colorado, USA. We use probabilistic fire simulation modeling to address where fire ignitions are most likely to cause the highest impact to human communities, and to explore the role that various landowners play in that transmission of risk. Our results indicated that, given an ignition and the right fire weather conditions, large areas along the Front Range in Colorado could be exposed to wildfires with high potential to impact human populations, and that overall private ignitions have the potential to impact more people than federal ignitions. These results can be used to identify high-priority areas for wildfire risk mitigation using various mitigation tools. PMID:25156542

Haas, Jessica R; Calkin, David E; Thompson, Matthew P

2014-08-25

491

Studies on polydnavirus transmission.  

PubMed

Polydnaviruses are thought to replicate only in the ovaries of certain hymenopteran species. Nevertheless, in the present study, polydnaviral DNA was found to exist in males of the braconid parasitoid species Cotesia melanoscela and in both male and female non-ovarian tissue of an ichneumonid, Hyposoter fugitivus; preliminary results suggest that viral DNA may be present in an unintegrated form, but whether or not it is encapsidated is unknown. Using interstrain genetic crosses, we demonstrated that C. melanoscela males can apparently transmit at least some viral DNA to female progeny. We suggest that polydnavirus DNAs may be present in most if not all tissues of certain parasitoid species, and are probably maintained within parasitoid populations by vertical transmission through the germ line. In parallel experiments, manually injected eggs of the ichneumonid parasitoid (H. fugitivus) survived and hatched in Malacosoma americanum larvae in the apparent absence of exogenous polydnavirus; female parasitoids reared in this manner nevertheless carried virus in their ovaries. Experiments utilizing different strains of C. melanoscela also suggest that per os transmission of polydnaviruses (to parasitoid larvae) does not occur, despite the fact that inoculum viral DNA can be shown to persist for several days in the tissues of parasitized host larvae. PMID:3776098

Stoltz, D B; Guzo, D; Cook, D

1986-11-01

492

Colorado Electrical Transmission Grid  

SciTech Connect

Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Originator: Xcel Energy Publication Date: 2012 Title: Colorado XcelEnergy NonXcel Transmission Network Edition: First Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains transmission network of Colorado Spatial Domain: Extent: Top: 4540689.017558 m Left: 160606.141934 m Right: 758715.946645 m Bottom: 4098910.893397m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shapefile

Zehner, Richard E.

2012-02-01

493

Automotive infinite transmission  

SciTech Connect

An automotive infinite transmission is described having an input pulley, an output pulley, and belt means entrained around the input and output pulleys for transmitting a rotational torque from the input pulley to the output pulley. An effective diameter of each of the input and output pulleys is variable for changing continuously a transmission ratio. Each of the input and output pulleys comprises: a fixed pulley member fixedly mounted on a rotary shaft and having a tapered pulley surface; a movable pulley member mounted on the rotary shaft for movement axially of the rotary shaft and having a tapered pulley surface; actuator means for axially moving the movable member toward and away from the fixed pulley member; generally radially extending slits formed in each of the pulley surface of the fixed pulley member and the pulley surface of the movable pulley member; drive blocks disposed circumferentially along the annular groove between the pulley surface of the fixed pulley member and the pulley surface of the movable pulley member; means for reducing a frictional force between the drive blocks and the pulley surface of the fixed pulley member and a frictional force between the drive blocks and the pulley surface of the movable pulley member; means for biasing the drive blocks radially inwardly against a centrifugal force applied to the drive blocks when the fixed and movable pulley members are rotated; and the drive blocks each having a radially outward surface with which the belt means is in frictional contact.

Hattori, Y.; Nomura, K.; Goshima, T.; Tanaka, H.

1987-11-10

494

Mechanism for supporting transmission shafts of automatic transmission apparatus  

SciTech Connect

This patent describes an automatic transmission for use in a vehicle, the transmission comprising: a transmission case; an extension housing connected to the transmission case; an input shaft; an output shaft disposed coaxially with and in series to the input shaft; a clutch mechanism for connecting the input shaft and the output shaft; and a parking gear mechanism provided in the vicinity of an intermediate portion of the output shaft, having a parking gear for retaining the output shaft, the parking gear having a flange with a sleeve-like boss portion splined to the output shaft; an improved transmission shaft supporting mechanism comprising: means supported by the transmission case for supporting the output shaft at the input-side end portion thereof, the output-side end portion thereof being supported by the extension housing.

Moroto, S.; Sumiya, K.; Kobayashi, Y.; Kano, T.; Hoshino, A.; Ano, Y.; Watanabe, K.; Taga, Y.

1989-02-28

495

50 CFR 86.31 - How much money may I charge the public to use tie-up facilities?  

Code of Federal Regulations, 2010 CFR

You may charge the public only a reasonable fee, based on the prevailing rate in the area. You must determine a fee that does not pose an unreasonable, competitive amount, based on other publicly and privately owned tie-up facilities in the...

2010-10-01

496

Composition of alkali silica gel and ettringite in concrete railroad ties: SEM-EDX and X-ray diffraction analyses  

Microsoft Academic Search

Alkali silica gel and ettringite observed in concrete railroad ties were analysed by SEM-EDX and X-ray diffraction. The compositions, represented in the Si? Ca?Na + K system, of clear gel were in the range of 53 to 63 atomic% Si and 20 to 30 atomic% Ca. The K + Na contents were constant and about 15% (excluding oxygen, water and

Niels Thaulow; Ulla Hjorth Jakobsen; Boyd Clark

1996-01-01

497

Hereditary cutaneomucosal venous malformations are caused by TIE2 mutations with widely variable hyper-phosphorylating effects  

PubMed Central

Mutations in the angiopoietin receptor TIE2/TEK have been identified as the cause for autosomal dominantly inherited cutaneomucosal venous malformation (VMCM). Thus far, two specific germline substitutions (R849W and Y897S), located in the kinase domain of TIE2, have been reported in five families. The mutations result in a fourfold increase in ligand-independent phosphorylation of the receptor. Here, we report 12 new families with TEK mutations. Although the phenotype is primarily characterized by small multifocal cutaneous vascular malformations, many affected members also have mucosal lesions. In addition, cardiac malformations are observed in some families. Six of the identified mutations are new, with three located in the tyrosine kinase domain, two in the kinase insert domain, and another in the carboxy terminal tail. The remaining six are R849W substitutions. Overexpression of the new mutants resulted in ligand-independent hyperphosphorylation of the receptor, suggesting this is a general feature of VMCM-causative TIE2 mutations. Moreover, variation in the level of activation demonstrates, to the best of our knowledge for the first time, that widely differing levels of chronic TIE2 hyperphosphorylation are tolerated in the heterozygous state, and are compatible with normal endothelial cell function except in the context of highly localized areas of lesion pathogenesis. PMID:19888299

Wouters, Vinciane; Limaye, Nisha; Uebelhoer, Melanie; Irrthum, Alexandre; Boon, Laurence M; Mulliken, John B; Enjolras, Odile; Baselga, Eulalia; Berg, Jonathan; Dompmartin, Anne; Ivarsson, Sten A; Kangesu, Loshan; Lacassie, Yves; Murphy, Jill; Teebi, Ahmad S; Penington, Anthony; Rieu, Paul; Vikkula, Miikka

2010-01-01

498

From the Cotton Fields to the Ties That Bind: Jim Pusack's Enduring Impact on Today's CALL Development  

ERIC Educational Resources Information Center

From 1981 to today, the encouragement Jim Pusack and his colleague Sue Otto gave faculty to develop and/or implement CALL into the curriculum has been vital to our L2 teaching evolution. This article describes how their efforts evolved over the last two and a half decades and the ties that bind their efforts with today's CALL development.

Jones, Linda C.

2010-01-01

499

EFL Doctoral Students' Conceptions of Authorial Stance in Academic Knowledge Claims and the Tie to Epistemic Beliefs  

ERIC Educational Resources Information Center

Taking an effective authorial stance in research argumentation has been designated as both vitally important and challenging. The study investigated English as a foreign language (EFL) doctoral students' conceptions of authorial stance, the role of domains in affecting their conceptions, and the ties of the conceptions to the…

Chang, Peichin; Tsai, Chin-Chung

2014-01-01

500

The Tie That Binds: Leadership and Liberal Arts Institutions' Civic Engagement Commitment in Rural Communities  

ERIC Educational Resources Information Center

Community boundary spanners create ties that bind the campus and its surrounding region for reciprocal relationships. Using community boundary spanning literature as a conceptual framework, this study went beyond existing research on public and 4-year comprehensive universities to examine how university leadership at rural, private liberal arts…

Goodman, Hunter Phillips

2014-01-01