Impact factors, Journal Citation Reports, the Science Citation Index and its online version the Web of Science are all statistical measures of the importance of journals and of the researchers who publish in them.

There are in fact journals that specialize in bibliometrics – the journal Scientometrics is one such example.

Dr. Jorge Hirsch, a physicist at UC San Diego has taken the “times cited” measure one step further by proposing the h-index “defined as the number of papers with citation number >h, as a useful index to characterize the scientific output of a researcher.”

Does the h index have predictive power? Hirsch, J. E. Department of Physics, University of California at San Diego, La Jolla, CA, USA. Proceedings of the National Academy of Sciences of the United States of America (2007), 104(49), 19193-19198.
Bibliometric measures of individual scientific achievement are of particular interest if they can be used to predict future achievement. Here we report results of an empirical study of the predictive power of the h index compared with other indicators. Our findings indicate that the h index is better than other indicators considered (total citation count, citations per paper, and total paper count) in predicting future scientific achievement. We discuss reasons for the superiority of the h index.

Using the Web of Science database, h-indexes can also be calculated for individual departments . For example, here’s the h-index numbers for a select number of Canadian university electrical engineering departments:

TORONTO 89
UBC 54
MCGILL 53
ALBERTA 51

The folks at Thomson Reutershave put together a short but very information video on impact factors and how to use the Web of Science database to find your own h-index.

Submitted by Kevin Lindstrom Liaison Librarian for the Physical and Appled Sciences, University of British Columbia

Dr. William R. Cullen from UBC’s Department of Chemistry has authored a fascinating book dealing with that most interesting of compounds – arsenic.

For a detailed blurb and table of contents of Is Arsenic an Aphrodisiac?, go to the Royal Society of Chemistry.

Is Arsenic an Aphrodisiac? is available in the UBC Library at the following Call Number.

A search of the Scifinder Scholar database reveals 393 papers written by Dr. Cullen with the earliest paper dealing with arsenic compounds published in a 1959 issue of the Journal of the Chemical Society.

Searching the Web of Science database for Cullen, WR and then sorting for most cited reveals that the article Arsenic Speciation in the Environment published by Cullen and Reimer in volume 89 of Chemical Reviews has been cited a cool 924 times.

Submitted by Kevin Lindstrom Liaison Librarian for Chemistry UBC-Vancouver

As a follow-up to this post, based upon 269 published articles Dr. Cullen’s h-index is 45.

A new single gateway to NRC research is on the way. Following an NRC CISTI pilot project with seven NRC institutes, NRC has given the go-ahead to create an NRC Publications Archive (NPArC) that will provide access to NRC’s record of science and demonstrate the many ways NRC researchers translate science and technology into value for Canada.

This searchable, web-based repository will increase the access to NRC authored publications, guarantee long-term access to NRC’s research output, and serve as a valuable resource for NRC researchers, collaborators and the public. NRC-CISTI will manage and maintain NPArC.

As part of this initiative, NRC has established a policy making it mandatory, starting in January 2009, for NRC institutes to deposit copies of all peerreviewed, NRC-authored publications and technical reports in NPArC.

Wherever possible, NPArC will provide access to the full text of these publications. NRC’s Licence to Publish (Crown Copyright) will be updated to declare its intent to deposit the full-text of NRC-authored publications in NPArC. However, the nature, timing and extent of access to individual publications depends on a variety of factors, including agreements with publishers, or in the case of technical reports the sensitivity or confidentiality of content.

More information about the NRC Publications Archive will be available closer to the launch date in December 2008.

Source: CISTI News September 2008

Posted by Kevin Lindstrom Physical Sciences and Engineering Librarian

Researchers from the Departments of Geography and Earth and Ocean Sciences have used the Celebration of Light Fireworks Competition as an opportunity to model plume trajectory, plume height and spread, and vertical dispersion.

Lidar ceilometer observations and modeling of a fireworks plume in Vancouver, British Columbia. Atmospheric Environment, Volume 42, Issue 30, September 2008, Pages 7174-7178 Derek van der Kamp, Ian McKendry, May Wong, Roland Stull.

Abstract
Observations of a plume emanating from a 30-min duration pyrotechnic display with a lidar ceilometer are described for an urban setting in complex, coastal terrain. Advection of the plume across the ceilometer occurred at a mean height of 250 m AGL. The plume traveled downwind at approx 3 m/s, and at a distance of 8 km downwind, was approx 100 m in vertical thickness with particulate matter (PM) concentrations of order 30–40 mg/m^3. Surface PM observations from surrounding urban monitoring stations suggest that the plume was not mixed to ground over the urban area. Plume trajectories at approx 250 m simulated by three numerical models all traveled to the northeast of the ceilometer location. Horizontal plume dispersion estimates suggest that the model trajectories were too far north to accommodate the likely lateral plume spread necessary to explain the ceilometer observations. This poor agreement between near surface observations and model output is consistent with previous mesoscale model validations in this region of complex urbanized terrain, and suggests that despite improvements in mesoscale model resolution, there remains an urgent need to improve upstream initial conditions over the Pacific Ocean, data assimilation over complex terrain, the representation of urban areas in mesoscale models, and to further validate such models for nocturnal applications in complex settings.

Submitted by Kevin Lindstrom Liaison Librarian for Physical Geography and Earth and Ocean Sciences

In an article published in October’s Journal of Atmospheric and Oceanic Technology a group of researchers from Japan describe the instrumentation installed on Boeing 747 and Boeing 777 aircraft used for measuring atmospheric CO2.

Machida, T., H. Matsueda, Y. Sawa, Y. Nakagawa, K. Hirotani, N. Kondo, K. Goto, T. Nakazawa, K. Ishikawa, and T. Ogawa, 2008: Worldwide Measurements of Atmospheric CO2 and Other Trace Gas Species Using Commercial Airlines. Journal of Atmospheric and Oceanic Technology. volume 25 issue 10, 1744–1754.

Article Abstract
New automated observation systems for use in passenger aircraft to measure atmospheric carbon dioxide (CO2) and other trace species have been developed and are described in this paper. The Continuous CO2 Measuring Equipment (CME) is composed mainly of a nondispersive infrared analyzer, a datalogger, and two calibration cylinders for in situ CO2 measurements. The Automatic Air Sampling Equipment (ASE), on the other hand, is designed for flask sampling; the instrument, connected to a metal bellows pump, is made up of a specially designed control board and can accommodate 12 flasks. The CME platform can be used to conduct high-frequency measurements of CO2 for obtaining a detailed spatial observation over a wide area, while ASE, despite the limited flight frequency, can provide useful distributions not only of CO2 but also various trace gas species, as well as their isotopic ratios. ASE and CME are installed on the racks in the forward cargo compartment of the aircraft and the air bypass intake is mounted on the air-conditioning duct upstream of the recirculation fan. Both sets of sampling equipment are automatically controlled through input of relevant flight parameters from the aircraft data system. Their deployment in a Boeing 747-400 aircraft was approved by the aviation regulatory agencies in the United States and Japan through issuance of the supplemental type certificate (STC), while the approval for installation of CME in a Boeing 777-200ER was also obtained via STC. First measurement results of CO2 variations obtained by CME and ASE deployed on Japan Airlines (JAL) aircraft are reported herein.

Click here to read the fulltext of the article.

Submitted by Kevin Lindstrom Liaison Librarian for Earth and Ocean sciences

Scifinder Scholar Web is a newly developed web interface that provides online access to Chemical Abstracts, CASREACT chemical reactions database, Chemical Abstracts Registry File, and Medline.

This new version of Scifinder does not require the installation of any additional client software.

For more information on how to access Scifinder Scholar Web

Posted by Kevin Lindstrom Liaison Librarian for Chemistry, Chemical and Biological Engineering, Materials Engineering, Electrical and Computer Engineering, and Earth and Ocean Sciences.

TRIUMF and UBC’s Department of Physics and Astronomy are proud to present the 2008-09 Saturday morning lecture series on Quantum Physics and Chemistry. We especially welcome guest speakers from the UBC Chemistry Department and from Simon Fraser University to this year’s program. This lecture series will introduce the audience to the essential facts about the quantum world in a systematic and non-technical way, starting with the basics and progressing to more advanced material, at a level appropriate for high school students and members of the general public. It would be excellent enrichment for high school chemistry and physics students. There is no charge for admittance, and students are encouraged to bring friends and interested family members. Teachers and members of the public are also welcome.

Due to the popularity of the series, advance registration is required.

October 25, 2008
10am – 12pm
Prelude to quantum Mechanics: Classical wave motion – Patrick Bruskiewich
Sound waves and the physics of music – Chris Waltham

November 29, 2008
10am – 12pm
Failures of classical physics and the birth of quantum physics – Mark Van Raamsdonk
Lasers and their applications – Kirk Madison

January 17, 2009
10am – 12pm
Quantum physics II – Mark Van Raamsdonk
Quantum computers – Robert Rausendorf

February 14, 2009
10am – 12pm
Quantum chemistry: molecules and chemical bonds – Roman Krems
Quantum chemistry on a computer – Y. Alex Wang

March 28, 2009
10am – 12pm
Quantum tunneling – Patrick Bruskiewich
Quantum weirdness – Bill Unruh

April 18, 2009
10am – 12pm
Quantum mechanics and materials science – Jeff Sonier
Quantum mechanics and subatomic physics – Stanley Yen

The 262 new submissions received between Wednesday 1 Oct and Thursday 2 Oct, announced Friday 3 Oct 2008, brought the total number of articles on arXiv past 500,000 — all openly accessible.

There are also more than 200,000 old versions of articles which record all public revisions since 1997. If the linear increase in submission rate continues, arXiv will pass the one million article mark in 2015.

See press release for more details.

Submitted by Kevin Lindstrom Liaison Librarian for Physics and Astronomy

The International Year of Astronomy 2009 is a global effort initiated by the International Astronomical Union and UNESCO to help the citizens of the world rediscover their place in the Universe through the day- and night-time sky, and thereby engage a personal sense of wonder and discovery.

Check out the IYA2009 website for information about the initiative as well as additional resources and information on global IYA-sponsored projects.

Interested in Physics and Astronomy research here at UBC? Have a look at the Department of Physics Astronomy and Astrophysics website. Here you will find a full list of faculty and their areas of research.

Submitted by Kevin Lindstrom Liaison Librarian for Physics and Astronomy.

The Knovel University Challenge is Back!

Enter to win a Wii, iPod Nano or Free Music starting on 9/29/08

Go to Knovel University Challenge for more information.

Posted by Kevin Lindstrom Liaison Librarian for Materials, Electrical and Computer, and Chemical Engineering