Calibrating the wings of the Chandra PSF T. J. Gaetz, R. J. Edgar, D. Jerius, P. Zhao, and R. K. Smith, Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA ABSTRACT We discuss the calibration of the win

Source URL: cxc.harvard.edu

• X-ray telescopes
• Space telescopes
• Radiography
• Plasma physics
• X-ray astronomy
• Chandra X-ray Observatory
• Point spread function
• X-ray
• Gamma ray
• Astronomy
• Electromagnetic radiation
• Medicine

Orbital measurement and verification of the Chandra X-Ray Observatory’s PSF D. Jerius, R.H. Donnelly, M.S. Tibbetts, R.J. Edgar, T.J. Gaetz, D.A. Schwartz, L.P. Van Speybroeck, P.Zhao Smithsonian Astrophysical Observat

Source URL: cxc.harvard.edu

• Optics
• X-ray telescopes
• Plasma physics
• Radiography
• X-ray astronomy
• Chandra X-ray Observatory
• Encircled energy
• Point spread function
• X-ray optics
• Astronomy
• Electromagnetic radiation
• Observational astronomy

Low probability of detection underwater acoustic communications using direct-sequence spread spectrum T. C. Yanga兲 Naval Research Laboratory, Washington, DC[removed]Wen-Bin Yang

Source URL: w3.antd.nist.gov

• Data transmission
• Oscillators
• Multiplexing
• Phase-shift keying
• Ambiguity function
• Carrier recovery
• Modulation
• Fading
• Phase-locked loop
• Telecommunications engineering
• Electronic engineering
• Electronics

CONFERENCE OPPORTUNITIES Listed below and according to subject matter and discipline are professional conferences that accept presentations by undergraduates. Some of the conferences are conventional conferences geared t

Source URL: www.provost.illinois.edu

• Canadian Undergraduate Mathematics Conference
• University of Massachusetts Amherst
• Higher education
• Columbia University
• Academia
• Eastern Colleges Science Conference
• The Center for Study of Gene Structure and Function
• American Association of State Colleges and Universities
• Middle States Association of Colleges and Schools
• Education in the United States

For immediate release Attention: Health/Lifestyle/Science Editors Across the World Today, People are Making Every Breath Count AllerGen NCE Celebrates World Spirometry Day Hamilton, ON (14 October 2010) – It is 2010: T

Source URL: www.allergen-nce.ca

• Respiratory therapy
• Immunology
• Pulmonary function testing
• Respiratory diseases
• Immune system
• Allergy
• Firestone Institute for Respiratory Health
• Spirometry
• Chronic obstructive pulmonary disease
• Medicine
• Pulmonology
• Health

R Foundations and Trends
in Information Retrieval Vol. 3, No[removed]–331 c 2009 T.-Y. Liu

Source URL: didawiki.cli.di.unipi.it

• Okapi BM25
• Tf*idf
• Vector space model
• PageRank
• IR evaluation
• Document retrieval
• Language model
• Latent semantic indexing
• Ranking function
• Information science
• Information retrieval
• Learning to rank

Concussion For Coaches RECOGNIZE A concussion is an injury to the brain from a hit to the head or to the body that affects the brain’s ability to function properly. You can’t see a concussion. But there are things yo

Source URL: www.mesaaz.gov

Week 5 (due Nov[removed]Problem[removed]Srednicki) 2. Consider free scalar field φ of mass m. Show that the Green’s function G(2) (x) = h0|T (φ(x)φ(0))|0i satisfies (−∂ 2 + m2 )G(2) (x) = −iδ 4 (x).

Source URL: www.theory.caltech.edu

THE GLASS AIN’T HALF EMPTY, IT’S JUST TOO BIG Managing change through creativity Change is a function of INFORMATION and TIME. You have an INTELLECTUAL ACCEPTANCE, but a GUT RESISTANCE to change because humans are cr

Source URL: www.ncpcu.org

• Creativity
• Educational psychology
• Problem solving
• Psychology
• Humor
• Mind
• Cognitive science
• Positive psychology
• Aptitude
• Cognition

Chronic kidney disease following snake bite envenoming in Sri Lanka. H.M.N.J Herath1, A.W.M Wazil1, D.T.D.J Abeysekara1, K.G.A.D Weerakoon2, N.D.C Jeewani1, N.V.I Rathnathunga 3, E.H.C.K Bandara 1, S.A.M Kularatne 4 1 N

Source URL: www.asiatox.org

• Biology
• Organ failure
• Renal physiology
• Chronic kidney disease
• Renal function
• Nephrology
• Nephrologists
• Acute kidney injury
• Teaching Hospital
• Kandy
• Anatomy
• Medicine
• Kidney diseases