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Did Neil deGrasse Tyson Just Solve a Crucial Game of Thrones Mystery?
Warning: This post contains spoilers for season seven of Game of Thrones. Neil deGrasse Tyson is putting his scientific expertise to use solving one of the Internet’s most pressing questions: How was the undead Viserion able to bring down the Wall on Game of Thrones? The famed astrophysicist took to Twitter Sunday to drop some thermal physics knowledge on fans still wondering about the difference between regular and blue dragon fire following the climactic finale of Thrones‘ seventh season. “Intriguing Thermal Physics in #GameOfThrones,” he wrote. “Blue Dragon breath would be at least a factor...
Source: TIME.com: Top Science and Health Stories - September 25, 2017 Category: Consumer Health News Authors: Megan McCluskey Tags: Uncategorized celebrities game of thrones neil degrasse tyson Television TV twitter viral Source Type: news

Creative Use of Noise Brings Bio-Inspired Electronic Improvement
(American Institute of Physics) Researchers at Osaka University in Japan are working to exploit stochastic resonance to enhance signal transmission for a new generation of devices, using single-walled carbon nanotubes. They created a summing network SR device that detects subthreshold signals, fabricated to include a self-noise component. The researchers report their findings this week in the journal Applied Physics Letters. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - September 25, 2017 Category: Biology Source Type: news

UK invests £65M in Deep Underground Neutrino Experiment in US
There were a lot of happy neutrino physicists around the UK and the US on Wednesday, as the long-standing partnership between the two countries in particle physics was bolstered by a new agreementDUNE is one of the betterparticle physics acronyms. The Deep Underground Neutrino Experiment involves a large, sensitive detector which will indeed be deep underground - in the Sanford Lab at the Homestake goldmine in South Dakota – and will study neutrinos produced from a high-intensity beam of protons at Fermilab in Illinois. UK scientists from several universities are already deeply involved in the experiment, and Cambrid...
Source: Guardian Unlimited Science - September 24, 2017 Category: Science Authors: Jon Butterworth Tags: Science Physics Particle physics Research funding Source Type: news

Collider serves up drop of primordial soup
Quark–gluon plasma produced at record low energies (Source: PhysicsWeb News)
Source: PhysicsWeb News - September 23, 2017 Category: Physics Authors: Edwin Cartlidge Source Type: news

An Empirical Bayes before-after evaluation of road safety effects of a new motorway in Norway - Elvik R, Ulstein H, Wifstad K, Syrstad RS, Seeberg AR, Gulbrandsen MU, Welde M.
This paper presents an Empirical Bayes before-after evaluation of the road safety effects of a new motorway (freeway) in Østfold county, Norway. The before-period was 1996-2002. The after-period was 2009-2015. The road was rebuilt from an undivided two-la... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

House and Senate Bringing Differing R & D Policies to Defense Bill Conference
The Senate passed its version of the annual National Defense Authorization Act on Sept. 18, sending the bill to conference committee. House and Senate conferees now must come to an agreement on a vast library of provisions, including many concerning R&D policy. (Source: FYI: The AIP Bulletin of Science Policy News)
Source: FYI: The AIP Bulletin of Science Policy News - September 22, 2017 Category: Physics Authors: wthomas Source Type: news

Wayfinding problems for blind pedestrians at noncorner crosswalks - Bentzen BLB, Barlow JM, Scott AC, Guth D, Long R, Graham J.
To travel independently, pedestrians with visual impairments must be able to locate crosswalks and align accurately for crossing streets. This action is especially challenging where crossings are not located at street corners and cues for locating the cros... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Watch where you're going? Interferer velocity and visual behavior predicts avoidance strategy during pedestrian encounters - Croft JL, Panchuk D.
Pedestrians can avoid collisions with other pedestrians by modifying some combination of their velocity and their path. The authors investigated how path constraints (constrained or unconstrained), interferer velocity (slow or fast), and vision (looking or... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Validation of an extended discrete first-order model with variable speed limits - Han Y, Hegyi A, Yuan Y, Hoogendoorn S.
This paper validates the prediction model embedded in a model predictive controller (MPC) of variable speed limits (VSLs). The MPC controller was designed based on an extended discrete first-order model with a triangular fundamental diagram. In our previou... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Real-world demonstrations of novel pedestrian crosswalk lighting - Bullough JD, Skinner NP.
Outdoor urban pedestrian lighting serves multiple purposes and should do so in the most efficient and economic manner. An important purpose of outdoor urban pedestrian lighting is to support the safety of pedestrians, particularly those who interact with a... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Pricing and reliability enhancements in the San Diego, California, activity-based travel model - Dhakar N, Freedman J, Bradley M, Sun W.
The estimation of demand for priced highway lanes is becoming increasingly important to agencies seeking to improve mobility and find alternative revenue sources for the provision of transportation infrastructure. However, many modeling tools fall short of... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Pre-disaster investment decisions for strengthening the Chinese railway system under earthquakes - Yan Y, Hong L, He X, Ouyang M, Peeta S, Chen X.
This study proposes a framework to determine the investment plan to strengthen a railway system which is subject to earthquake hazard. The proposed framework includes four parts: (1) Construct a two-layer (physical layer and service layer) railway network ... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Modeling the demand for new transportation services and technologies - Miller EJ.
This paper briefly discusses the current state of the art of urban travel demand modeling and research needs in the field. Special emphasis is given to both the challenges and the opportunities posed by modern information technology and the data, transport... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Measuring walking accessibility in metropolitan areas - Saghapour T, Moridpour S, Thompson RG.
Promoting walking trips is considered a key element of achieving more sustainable transportation. This paper presents a new index for measuring walkability in metropolitan areas. This index measures walkability levels for diversity and intensity of uses in... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Investigating distance halo effects of mobile photo enforcement on urban roads - Gouda M, El-Basyouny K.
This paper investigates the distance halo effects of mobile photo enforcement (MPE) on urban roads in Edmonton, Alberta, Canada. Speed data were recorded at various distances upstream and downstream of nine locations during four MPE site visits and at the ... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Introducing the pedestrian accessibility tool: walkability analysis for a geographic information system - Erath A, van Eggermond MAB, Ord óñez SA, Axhausen KW.
The indexes for walkability proposed so far refer generally to the closest amenities and public transport stops and the existing network structure. The weights of the attributes do not reflect the independently measured preferences of the users and residen... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Integrating a hip belt with body armour reduces the magnitude and changes the location of shoulder pressure and perceived discomfort in soldiers - Lenton GK, Doyle TLA, Billing D, Saxby DJ, Higgs J, Lloyd DG.
This study assessed if new body armour designs that incorporated a hip belt reduced shoulder pressures and improved comfort. Twenty-one Australian soldiers completed t... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Integrated agent-based travel behavior and dynamic traffic microsimulation for ramp-metering analysis - Xiong C, Pan Y, Lee M, Zhu Z, Zhang L.
Ramp-metering control has long been an effective strategy in active traffic management and integrated corridor management and has received increased research attention in recent decades. Although most existing studies analyze ramp metering at the corridor ... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Injury patterns sustained in fatal motor vehicle collisions with driver's third-generation airbag deployment - Kuk M, Shkrum MJ.
The Office of the Chief Coroner for Ontario database for 2011-2012 was used to compare fatal injury patterns in drivers whose third-generation airbags deployed compared to first- and second-generation airbag deployments and airbag nondeployments with and w... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Hurricane imaging radiometer (HIRAD) wind speed retrievals and validation using dropsondes - Cecil DJ, Biswas SK.
Surface wind speed retrievals have been generated and evaluated using Hurricane Imaging Radiometer (HIRAD) measurements from flights over Hurricane Joaquin, Hurricane Patricia, Hurricane Marty, and the remnants of Tropical Storm Erika, all in 2015. Procedu... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

How bicycle level of traffic stress correlate with reported cyclist accidents injury severities: a geospatial and mixed logit analysis - Chen C, Anderson JC, Wang H, Wang Y, Vogt R, Hernandez S.
Transportation agencies need efficient methods to determine how to reduce bicycle accidents while promoting cycling activities and prioritizing safety improvement investments. Many studies have used standalone methods, such as level of traffic stress (LTS)... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

High-pressure injection injury: benign appearance belies potentially devastating consequences - Ryan AT, Johnstone BR.
[Abstract unavailable] Language: en... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Group-based hierarchical adaptive traffic-signal control Part II: implementation - Lee S, Wong SC, Varaiya P.
In part I of this study (Lee et  al., 2017), the formulation of a theoretical framework for a group-based adaptive traffic-control method for isolated signalized junctions is presented, which includes tactical and local levels of signal timing optimization... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Group-based hierarchical adaptive traffic-signal control Part I: formulation - Lee S, Wong SC, Varaiya P.
A group-based adaptive traffic-control method for isolated signalized junctions is developed that includes a hierarchical structure comprising tactical and local levels of signal timing optimization. The control method optimizes the signal timings in adapt... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Climate deniers want to protect the status quo that made them rich
Sceptics prefer to reject regulations to combat global warming and remain indifferent to the havoc it will wreak on future generationsFrom my vantage point outside the glass doors, the sea of grey hair and balding pates had the appearance of a golf society event or an active retirement group. Instead, it was the inaugural meeting of Ireland ’s first climate denial group, the self-styledIrish Climate Science Forum (ICSF) in Dublin in May. All media were barred from attending.Its guest speaker was the retired physicist and noted US climate contrarian,Richard Lindzen. His jeremiad against the “narrative of hysteri...
Source: Guardian Unlimited Science - September 22, 2017 Category: Science Authors: John Gibbons Tags: Climate change scepticism Environment Science UK news Ireland World news Source Type: news

Definition of a merging assistant strategy using intelligent vehicles - Scarinci R, Hegyi A, Heydecker B.
In the area of active traffic management, new technologies provide opportunities to improve the use of current infrastructure. Vehicles equipped with in-car communication systems are capable of exchanging messages with the infrastructure and other vehicles... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Case study of today's automotive dealerships: introduction and delivery of advanced driver assistance systems - Abraham H, McAnulty H, Mehler B, Reimer B.
Vehicle manufacturers have developed advanced driver assistance systems (ADASs) to reduce driver workload and enhance safety. The delivery of these systems to consumers occurs through dealerships not owned by manufacturers. Limited research is available on... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Beaconing signalization substantially reduces blind pedestrians' veer on snow-covered pavement - Guth DA, Long RG, Kim DS, Robertson EA, Reesor AL, Bacik CJ, Eckert JM.
Veering outside of crosswalks is a common problem experienced by individuals who are blind. One technology found to be effective for reducing this veer when other guidance cues are absent is audible beaconing. However, veering in general and veering from c... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Association between seatbelt sign and internal injuries in the contemporary airbag era: a retrospective cohort study - Glover JM, Waychoff MF, Casmaer M, April MD, Hunter CJ, Trexler ST, Blackbourne LH.
BACKGROUND: Literature predating routine availability of airbags reported an association between seatbelt signs and internal injuries. We measured this association among patients involved in motor vehicle crashes (MVCs) with airbag deployment. METH... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Assessing the ground vibrations produced by a heavy vehicle traversing a traffic obstacle - Ducarne L, Ainalis D, Kouroussis G.
Despite advancements in alternative transport networks, road transport remains the dominant mode in many modern and developing countries. The ground-borne motions produced by the passage of a heavy vehicle over a geometric obstacle (e.g. speed hump, train ... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Addressing key concerns regarding automated speed enforcement via interactive survey - Peterson C, Douma F, Morris N.
Speeding is a public health crisis that accounts for approximately one-third of roadway deaths each year in the United States. One countermeasure with clearly documented efficacy to reduce speed is automated speed enforcement (ASE). Public acceptance, howe... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Examining accident reports involving autonomous vehicles in California - Favar ò FM, Nader N, Eurich SO, Tripp M, Varadaraju N.
Autonomous Vehicle technology is quickly expanding its market and has found in Silicon Valley, California, a strong foothold for preliminary testing on public roads. In an effort to promote safety and transparency to consumers, the California Department of... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Driving on urban roads: how we come to expect the 'correct' speed - Charlton SG, Starkey NJ.
The subjective categories that drivers use to distinguish between different road types have been shown to influence the speeds they choose to drive but as yet we do not understand the road features that drivers use to make their discriminations. To better ... (Source: SafetyLit)
Source: SafetyLit - September 22, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

UK pledges $65m towards US neutrino facility
Flash Physics: need-to-know updates from the world of physics (Source: PhysicsWeb News)
Source: PhysicsWeb News - September 21, 2017 Category: Physics Authors: Michael Banks Source Type: news

UK invests in giant underground neutrino detector
The UK government has announced a £ 65 million strategic investment in the next generation of particle physics experiments. (Source: University of Bristol news)
Source: University of Bristol news - September 21, 2017 Category: Universities & Medical Training Tags: Grants and Awards; Faculty of Science, Faculty of Science, School of Physics; Press Release Source Type: news

UK pledges £65m towards US neutrino facility
Flash Physics: need-to-know updates from the world of physics (Source: PhysicsWeb News)
Source: PhysicsWeb News - September 21, 2017 Category: Physics Authors: Michael Banks Source Type: news

Rupture within tectonic plate is probable cause of Mexico earthquakes
Mexico ’s most recent earthquakes did not directly involve two tectonic plates clashing, as is commonly the case. Seismologist Dr Stephen Hicks explainsWe are often reminded about the force and devastation from earthquakes that occur around the Pacific Ring of Fire. The titanic collision of two tectonic plates, which firmly lock together and accrue strain over tens to hundreds of years, eventually releases this pent-up energy as a large earthquake. We have seen such quakes strikingIndonesia,Chile andJapan over the past 15 years. Mexico, too, lies on the Ring of Fire and is no stranger to such quakes: the 1985 8.0 mag...
Source: Guardian Unlimited Science - September 21, 2017 Category: Science Authors: Stephen Hicks Tags: Geology Mexico Earthquakes Natural disasters and extreme weather Americas Physics Science Source Type: news

Binary supermassive black hole system spotted in Seyfert galaxy
Observation backs up model of Z-shaped radio sources (Source: PhysicsWeb News)
Source: PhysicsWeb News - September 21, 2017 Category: Physics Authors: Hamish Johnston Source Type: news

The hidden simplicity of subduction megathrust earthquakes
The largest observed earthquakes occur on subduction interfaces and frequently cause widespread damage and loss of life. Understanding the rupture behavior of megathrust events is crucial for earthquake rupture physics, as well as for earthquake early-warning systems. However, the large variability in behavior between individual events seemingly defies a description with a simple unifying model. Here we use three source time function (STF) data sets for subduction zone earthquakes, with moment magnitude Mw ≥ 7, and show that such large ruptures share a typical universal behavior. The median STF is scalable between event...
Source: ScienceNOW - September 21, 2017 Category: Science Authors: Meier, M.- A., Ampuero, J. P., Heaton, T. H. Tags: Geochemistry, Geophysics reports Source Type: news

Angular momentum-induced delays in solid-state photoemission enhanced by intra-atomic interactions
Attosecond time-resolved photoemission spectroscopy reveals that photoemission from solids is not yet fully understood. The relative emission delays between four photoemission channels measured for the van der Waals crystal tungsten diselenide (WSe2) can only be explained by accounting for both propagation and intra-atomic delays. The intra-atomic delay depends on the angular momentum of the initial localized state and is determined by intra-atomic interactions. For the studied case of WSe2, the photoemission events are time ordered with rising initial-state angular momentum. Including intra-atomic electron-electron intera...
Source: ScienceNOW - September 21, 2017 Category: Science Authors: Siek, F., Neb, S., Bartz, P., Hensen, M., Strüber, C., Fiechter, S., Torrent-Sucarrat, M., Silkin, V. M., Krasovskii, E. E., Kabachnik, N. M., Fritzsche, S., Muino, R. D., Echenique, P. M., Kazansky, A. K., Müller, N., Pfeiffer, W., Heinzm Tags: Physics reports Source Type: news

Observation of a large-scale anisotropy in the arrival directions of cosmic rays above 8 x 1018 eV
Cosmic rays are atomic nuclei arriving from outer space that reach the highest energies observed in nature. Clues to their origin come from studying the distribution of their arrival directions. Using 3 x 104 cosmic rays with energies above 8 x 1018 electron volts, recorded with the Pierre Auger Observatory from a total exposure of 76,800 km2 sr year, we determined the existence of anisotropy in arrival directions. The anisotropy, detected at more than a 5.2 level of significance, can be described by a dipole with an amplitude of 6.5–0.9+1.3 percent toward right ascension αd = 100 ± 10 degrees and declin...
Source: ScienceNOW - September 21, 2017 Category: Science Authors: The Pierre Auger Collaboration Tags: Astronomy, Physics r-articles Source Type: news

High-energy particles are extragalactic
(Source: ScienceNOW)
Source: ScienceNOW - September 21, 2017 Category: Science Authors: Smith, K. T. Tags: Astronomy, Physics twis Source Type: news

Photoemission with a twist
(Source: ScienceNOW)
Source: ScienceNOW - September 21, 2017 Category: Science Authors: Osborne, I. S. Tags: Physics twis Source Type: news

New angle on cosmic rays
(Source: ScienceNOW)
Source: ScienceNOW - September 21, 2017 Category: Science Authors: Gallagher, J. S., Halzen, F. Tags: Astronomy, Physics perspective Source Type: news

Angular momentum can slow down photoemission
(Source: ScienceNOW)
Source: ScienceNOW - September 21, 2017 Category: Science Authors: Yakovlev, V. S., Karpowicz, N. Tags: Physics perspective Source Type: news

Key House Appropriator Backs NSF Physical Sciences Boost
During floor debate on the House ’s omnibus spending bill for fiscal year 2018, Commerce, Justice, and Science Appropriations Subcommittee Chair John Culberson (R-TX) supported a successful amendment by Science Committee Chair Lamar Smith (R-TX) to shift $30.2 million to physical and biological sciences research at the National S cience Foundation from other agency activities. Although a small amount, Culberson’s support for the amendment indicates he is sympathetic to Smith’s broader push to prioritize the physical sciences. (Source: FYI: The AIP Bulletin of Science Policy News)
Source: FYI: The AIP Bulletin of Science Policy News - September 20, 2017 Category: Physics Authors: awolfe Source Type: news

Parametric analysis of occupant ankle and tibia injuries in frontal impact - Mo F, Jiang X, Duan S, Xiao Z, Xiao S, Shi W.
This study aimed to investigate occupant tibia and ankle injuries under realistic frontal impact environment that ... (Source: SafetyLit)
Source: SafetyLit - September 20, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Ranges of injury risk associated with impact from unmanned aircraft systems - Campolettano ET, Bland ML, Gellner RA, Sproule DW, Rowson B, Tyson AM, Duma SM, Rowson S.
The objective of this study was to estimate the range of injury risks to humans due to UAS impact. T... (Source: SafetyLit)
Source: SafetyLit - September 20, 2017 Category: International Medicine & Public Health Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Budget crunch hits Brazilian physics
Scientists protest devastating spending cuts (Source: PhysicsWeb News)
Source: PhysicsWeb News - September 20, 2017 Category: Physics Authors: Henrique Kugler Source Type: news

3-D printed brain allows surgeons to practice
(University of Connecticut) The first time a young surgeon threads a wire into a stroke victim's chest and neck and fishes a blood clot out of the brain may be one of the most harrowing moments in her career. Using brain scans and a 3-D printer, a UConn Health radiologist and a medical physicist made a life-size model of the arteries and will make the pattern freely available to any doctor who requests. (Source: EurekAlert! - Medicine and Health)
Source: EurekAlert! - Medicine and Health - September 20, 2017 Category: International Medicine & Public Health Source Type: news