Browsing College of Science by Title

The Discovery of gamma-Ray Emission From The Blazar RGB J0710+591

Lang, Mark; Gillanders, Gary (2010)

The high-frequency-peaked BL Lacertae object RGB J0710+591 was observed in the very high-energy (VHE; E > 100 GeV) wave band by the VERITAS array of atmospheric Cherenkov telescopes. The observations, taken between 2008 ...

Discovery of Spectral Variability of Markarian 421 at TeV Energies

Lang, Mark; Gillanders, Gary (2002)

The detection of spectral variability of the gamma-ray blazar Mrk 421 at TeV energies is reported. Observations with the Whipple Observatory 10m gamma-ray telescope taken in 2000/2001 revealed exceptionally strong and ...

Discovery of TeV Gamma Ray Emission from Tycho's Supernova Remnant

Lang, Mark; Gillanders, Gary (2011)

We report the discovery of TeV gamma-ray emission from the Type Ia supernova remnant (SNR) G120.1+1.4, known as Tycho's supernova remnant. Observations performed in the period 2008-2010 with the VERITAS ground-based gamma-ray ...

Discovery of Variability in the Very High Energy Gamma-Ray Emission of 1ES 1218+304 with VERITAS

Lang, Mark; Gillanders, Gary (2010)

We present results from an intensive VERITAS monitoring campaign of the high-frequency peaked BL Lac object 1ES 1218+304 in 2008/2009. Although 1ES 1218+304 was detected previously by MAGIC and VERITAS at a persistent level ...

Discovery of Very High-Energy Gamma-Ray Radiation from the BL Lac 1ES 0806+524

Lang, Mark; Gillanders, Gary (2008)

The high-frequency-peaked BL-Lacertae object \objectname{1ES 0806+524}, at redshift z=0.138, was observed in the very-high-energy (VHE) gamma-ray regime by VERITAS between November 2006 and April 2008. These data encompass ...

Discovery of VHE $\gamma$-ray emission from the SNR G54.1+0.3

Lang, Mark; Gillanders, Gary (2010)

We report the discovery of very high energy gamma-ray emission from the direction of the SNR G54.1+0.3 using the VERITAS ground-based gamma-ray observatory. The TeV signal has an overall significance of 6.8$\sigma$ and ...

A discrete P⋅⋅⋅I I⋅⋅⋅P assembly: the large influence of weak interactions on the 31P NMR Spectra of Phosphane–Diiodine Complexes

Nuñez, Rosario; Farràs, Pau; Teixidor, Francesc; Viñas, Clara; Sillanpää, Reijo; Kivekäs, Raikko (Wiley, 2006-02-06)

Seeing I to I: The reaction of a weakly coordinating carboranyl phosphane ligand with I2 leads to the formation of an adduct containing the bridging P⋅⋅⋅I[BOND]I⋅⋅⋅P assembly in the solid state (see picture; I purple, P ...

DNA binding, cleavage and cytotoxicity of a novel dimetallic Fe(III) triaza-cyclononane complex

Araujo, Thaylan Pinheiro; Gandin, Valentina; Kavanagh, Paul; Braude, Jeremy Phillip; Nodari, Luca; Montagner, Diego; Erxleben, Andrea (Elsevier, 2016-03-03)

A novel bimetallic Fe(III) complex with the bis(triaza-cyclononane) ligand 2,6-bis(1,4,7-triazacyclonon-1-ylmethyl)-4-methylphenol (bcmp) is reported. [Fe-2(bcmp(-H))(mu-OH)Cl-2]Cl-2 (2) contains two octahedral Fe(III) ...

DNA damage and induction of apoptosis in pancreatic cancer cells by a new dinuclear bis(triazacyclonane) copper complex

Montagner, Diego; Gandin, Valentina; Marzano, Cristina; Erxleben, Andrea (Elsevier, 2015-01-26)

The dinuclear copper(II) complex [Cu-2{bcmp(-H)}(mu-OH)](NO3)(2)center dot H2O (1, bcmp = 2,6-bis(1,4,7-triazacyclonon-1-ylmethyl)-4-methylphenol) has been synthesized and characterized by electrospray ionization mass ...

Ecological variation in response to mass-flowering oilseed rape and surrounding landscape composition by members of a cryptic bumblebee complex

Stanley, Dara A.; Knight, Mairi E.; Stout, Jane C. (Public Library of Science, 2013-06-19)

The Bombus sensu stricto species complex is a widespread group of cryptic bumblebee species which are important pollinators of many crops and wild plants. These cryptic species have, until now, largely been grouped together ...

Edge wrinkling in elastically supported pre-stressed incompressible isotropic plates

Destrade, Michel; Fu, Yibin; Nobili, Andrea (The Royal Society Publishing, 2016-09-07)

The equations governing the appearance of flexural static perturbations at the edge of a semi-infinite thin elastic isotropic plate, subjected to a state of homogeneous bi-axial pre-stress, are derived and solved. The plate ...

Effect of substrate geometry on liquid-crystal-mediated nanocylinder-substrate interactions

Cheung, David L.; Allen, Michael P. (American Institute of Physics, 2008)

Using classical density functional theory, the liquid crystal (LC)-mediated interaction between a cylindrical nanoparticle and a structured substrate is studied. The surface is structured by cutting a rectangular groove ...

Effects of ball-milling and cryomilling on sulfamerazine polymorphs: A quantitative study

MacFhionnghaile, Pól; Hu, Yun; Gniado, Katarzyna; Curran, Sinead; McArdle, Patrick; Erxleben, Andrea (Elsevier, 2014-04-11)

The effects of ball-milling and cryomilling on sulfamerazine forms I and II (SMZ FI, FII) were investigated using X-ray powder diffraction, infrared and near-infrared (NIR) spectroscopy. Cryomilling resulted in a complete ...

Elastic Cherenkov effects in transversely isotropic soft materials-I: Theoretical analysis, simulations and inverse method

Li, Guo-Yang; Zheng, Yang; Liu, Yanlin; Destrade, Michel; Cao, Yanping (Elsevier, 2016-06-25)

A body force concentrated at a point and moving at a high speed can induce shear-wave Mach cones in dusty-plasma crystals or soft materials, as observed experimentally and named the elastic Cherenkov effect (ECE). The ECE ...

Elastic interface acoustic waves in twinned crystals

Destrade, Michel (Elsevier, 2003)

A new type of interface acoustic waves (IAW) is presented, for single-crystal orthotropic twins bonded symmetrically along a plane containing only one common crystallographic axis. The effective boundary conditions show ...

Electron backscatter diffraction (EBSD) in the SEM: applications to microstructures in minerals and rocks and recent technological advancements

Mariani, Elisabetta; Prior, D. J.; McNamara, David D.; Pearce, M.A.; Seaton, N.; Seward, G.; Tatham, D.; Wheeler, J. (Sociedad Española de la Mineralogía, 2008-09-16)

Electron backscatter diffraction (EBSD) is based on the principle that a beam of electrons generated in the scanning electron microscope (SEM) is the source of randomly scattered electrons in a specimen. The backscattered ...