NIST Technicalendar April 8 to April 12, 2002 The NIST Technicalendar is issued each Friday. All items MUST be submitted electronically from this web page by 12:00 NOON each Wednesday unless otherwise stated in the NIST Technicalendar. The address for online weekly editions of the NIST Technicalendar and NIST Administrative Calendar is: http://www.nist.gov/tcal/.
Please evaluate the web Technicalendar using our 30 Second Evaluation

In this Issue: Meetings at NIST Meetings Elsewhere Announcements Talks by NIST Personnel NIST Web Site Announcements NIST Administrative Calendar (current)   NIST Vacancy Announcements (current)

Also available: Previous Issues of the Technicalendar Quick Technicalendar (current) Last week's Quick Technicalendar Last week's Technicalendar Detailed Search NIST Journal of Research (Current TOC) Change User Options

10:00 AM - Software Quality Enhancement using the DMS Software Reengineering Toolkit
10:45 AM - Magnetic Studies of the Spin Liquid and Spin Ice Pyrochlores

9:00 AM - 3rd Workshop of the Optical Properties of Materials NIST-Industry Consortium
11:00 AM - Magnetic Resonance Microimaging and Spectroscopy of Engineered Cartilage Tissue
3:00 PM - Amino Acid Exchangeability from Experimental Data

No Scheduled Events

No Scheduled Events

1:30 PM - AFM Anodization Lithography on Organic Resists

4/8 -- MONDAY

10:00 AM - SOFTWARE DIAGNOSTICS AND CONFORMANCE TESTING DIVISION SEMINAR: Software Quality Enhancement using the DMS Software Reengineering Toolkit
Ira Baxter , CTO Semantic Designs, .
NIST North Bldg, Rm. 501. (NIST Contact: Paul E. Black, 301-975-4794, paul.black@nist.gov) http://hissa.ncsl.nist.gov/~black/baxter.html

10:45 AM - MAGNETIC STUDIES OF THE SPIN LIQUID AND SPIN ICE PYROCHLORES SEMINAR: Magnetic Studies of the Spin Liquid and Spin Ice Pyrochlores
Antiferromagnetically coupled spins residing on a network of corner sharing triangles (Kagome lattice) or tetrahedra (pyrochlore lattice) have attracted much attention in recent years and often display phenomena known broadly as geometrical frustration. Because of their low propensity to order, even for classical spins, antiferromagnetic materials based on a pyrochlore lattice appear to be excellent systems for studying exotic quantum mechanical ground states. It has recently been shown that even ferromagnetically coupled spins can be frustrated on such a lattice, if there is considerable local Ising anisotropy. Detailed neutron scattering, muon spin relaxation and bulk property measurements taken on the antiferromagnet, Tb2Ti2O7, and the ferromagnet, Ho2Ti2O7, will be presented. Evidence of short-range magnetic correlations, frozen moments and long-range magnetic ordering in different parts of applied field and temperature space will be discussed. Elastic and inelastic neutron scattering studies of Tb2Ti2O7, will be presented. This cooperative paramagnet or spin liquid, with an effective moment of 9.7 µB, has be shown to magnetically order in modest fields and temperatures, however in zero field the system does not order above 15 mK, even with it's large moment. Ho2Ti2O7 is known as a "dipolar spin ice" compound and this will be discussed in some detail.
Jason Gardner , National Research Council of Canada.
Building 235, Room E100. (NIST Contact: Jeff Lynn, 301-975-6246, jeffrey.lynn@nist.gov)


4/9 -- TUESDAY

9:00 AM - NDUSTRY CONSORTIUM SEMINAR: 3rd Workshop of the Optical Properties of Materials NIST-Industry Consortium
This will be the third annual workshop of the NIST-Industry Optical Properties of Materials Consortium (OPMC). The OPMC has been established to provide NIST with direct input from industry concerning industry's needs for optical properties of materials data, standards, calibration services, materials research, measurement methodologies, etc. Currently 8 members from industry and academia representing a variety of fields are working with NIST personnel from several divisions under the Consortium CRADA agreements. The workshop will consist of talks by both NIST and industrial participants on current activities related to optical properties, as well as a discussion session on future directions. Everyone is invited.
. . , ..
Administration Building, Lecture Room F. (NIST Contact: Leonard Hanssen, 301-975-2344, hanssen@nist.gov)

11:00 AM - MAGNETIC RESONANCE MICROIMAGING AND SPECTROSCOPY OF ENGINEERED CARTILAGE TISSUE SEMINAR: Magnetic Resonance Microimaging and Spectroscopy of Engineered Cartilage Tissue
Osteoarthritis is one of the chief causes of decreased mobility in the older population. One potential approach to control of this disease is the use of chondrocyte transplantation, with eventual elaboration of neocartilage from the transplanted cells. Numerous studies in monolayer chondrocyte culture have been pursued towards the development of these techniques. However, monolayer growth does not reflect the true three-dimensional nature of the developing chondrocyte cartilage system. Thus, the ideal in vitro system for investigating the regulation of cartilage formation and maintenance would allow for three dimensional tissue growth, a wide range of biochemical interventions, and non-destructive evaluation. We have accordingly investigated neocartilage tissue grown from isolated chondrocytes in a hollow fiber bioreactor which meets these criteria and which is NMR-compatible. This system permits chondrocytes and the three dimensional matrix which they elaborate to be studied longitudinally for several weeks in a non invasive manner.
Dr. Richard Spencer , National Institute on Aging.
Polymer Building, Room A312. (NIST Contact: Newell Washburn, 301-975-4348, newell.washburn@nist.gov) http://polymers.msel.nist.gov/

3:00 PM - MATHEMATICAL AND COMPUTATIONAL SCIENCES DIVISION SEMINAR: Amino Acid Exchangeability from Experimental Data
Arlin Stoltzfus , Center for Advanced Research in Biotechnology.
820 (NIST North) Bldg, Rm. 145. (NIST Contact: Fern Hunt, 301-975-3887, fern.hunt@nist.gov) http://math.nist.gov/mcsd/Seminars/2002/2002-04-09-stoltzful.html


4/10 -- WEDNESDAY

No Scheduled Events

4/11 -- THURSDAY

No Scheduled Events

4/12 -- FRIDAY

1:30 PM - OPTICAL TECHNOLOGY DIVISION SEMINAR: AFM Anodization Lithography on Organic Resists
AFM anodization lithography, a patterning methods using an electrochemical growth of oxide on selective areas under the external electric field between a tip and a resist, was first accomplished on a bare Si wafer. We have recently found interesting features when the lithography is carried out on organic thin layers as resists. In this seminar, some advantages of the lithography on organic resists will be presented and its possible application to fabricate nano devices will be also discussed.
Dr. HaeSeong Lee , AFM Anodization Lithography on Organic Resists, HanYang University, Seoul, Korea.
221 Bldg, Rm. B 145. (NIST Contact: Jeeseong Hwang, 301-975-4580, jeeseong.hwang@nist.gov)


ADVANCE NOTICE

4/17/02 10:00 AM - ELECTRON AND OPTICAL PHYSICS DIVISION SEMINAR: Spin Polarized Tunneling Studies in Transition Metal Ferromagnets
In this talk I will present our recent studies on the spin polarization of tunneling electrons in ferromagnetic transition metals. To measure the spin polarization of the 3d transition metals, the superconductor Al / Al2O3 /ferromagnet junctions, so-called Meservey-Tedrow technique was used. Especially, for polycrystalline Ni, we observed the high polarization value (45 %) by improving the junction preparation condition. This high value compares with the values for Fe and Co despite the large difference in their bulk magnetic moments. Systematic works for different transition metal alloy films have been performed to understand the relation between the magnetic moment and the spin polarization, as well as crystal orientation dependence of spin polarization in epitaxial Ni films. This talk will also discuss our experimental works showing the important role of the interface (and surface) in the spin polarized tunneling, and the current progress on the investigation of novel superconducting materials, such as MgB2 and Ga-Al bilayer films, as spin detectors in superconductor / insulator / ferromagnet junctions.
Tae Hee Kim , Magnet Laboratory, MIT.
Metrology Bldg, Rm. B211. (NIST Contact: John Unguris, 301-975-3712, unguris@nist.gov)

4/18/02 6:00 PM - THE STANDARDS ALUMNI ASSOCIATION MEETING, APRIL 18, 2002 SEMINAR: The Standards Alumni Association Meeting, April 18, 2002
NIST alumni and current staff members are invited to attend the Annual/Dinner Meeting of the Standards Alumni Association (SAA), to be held on Thursday, April 18, 2002, starting with a Social Period in the NIST Employees Lounge at 6:00 p.m., followed by Dinner in the NIST Club at 7:00 p.m. Dr. Arden L. Bement, Jr., NIST's new Director, will discuss his long-standing association with NIST and his vision for the future. He came to NIST from his position as the David A. Ross Distinguished Professor of Nuclear Engineering and Head of the School of Nuclear Engineering at Purdue University after holding key positions in industry, defense agencies, and academia. Reservations for dinner must be made NO LATER THAN Friday, April 12, 2002, at $22 per person. Attendees without NIST badges must be registered on the guest list and have valid ID; allow extra time for security check at the Main Gate. For information about the SAA or this meeting, please call the SAA office at Ext 2486, or Reeves Tilley at (301) 762-7186. Sam Kramer is the outgoing SAA President, and Walter Leight is the SAA/NIST Liaison. Members of the NBS/NIST staff, past and present, are encouraged to join the SAA; annual dues are $15. Applications for membership and the names and addresses of prospective members may be sent to Room A42 Admin; email address: alumni@nist.gov. More than 400 past and present members of the NBS/NIST staff, research associates, and guest workers now belong to SAA. The Association conducts activities in information transfer through volunteer services, educational seminars, science fairs, and science talent searches; has been a source of information for the NIST history project and the Centennial Celebrations in 2001; and continues to facilitate solutions of problems related to the NIST mission.
Dr. Arden Bement , Director of NIST, Gaithersburg, MD.
Administration Building, Employees Lounge/The NIST Club. (NIST Contact: SAA Office, 301-975-2486, alumni@nist.gov)

---

MEETINGS ELSEWHERE


4/8 -- MONDAY

11:00 AM - CARNEGIE INSTITUTION OF WASHINGTON GEOPHYSICAL LAB SEMINAR: ULTRAHIGH-PRESSURE METAMORPHISM IN THE GREENLAND CALEDONIDES -- IMPLICATIONS FOR CALEDONIAN CONTINENTAL COLLISION MODELS
J. Gilotti , Univ. of Iowa.
Bldg, Rm. .
Abelson Bldg., GL-DTM Grounds, Carnegie Institution of Washington, DC. (NIST Contact: S. Scmidt, 202-478-8900, schmidt@gl.ciw.edu)

7:30 PM - LOYOLA COLLEGE IN MARYLAND: DIGITAL SIGNAL PROCESSING AND THE RISE OF CONSUMER ELECTRONICS
F. Nebeker , IEEE History Center, Rutgers Univ..
Bldg, Rm. .
Loyola College, Baltimore, MD. (NIST Contact: . ., 401-617-2000, .) http://www.loyola.edu

11:00 AM - CARB SEMINAR: STRUCTURE AND FUNCTION IN MULTIDOMAIN SIGNALING PROTEINS
Z. Derewenda , Dept. Mol. Physiology & Physics, Univ. of Virginia, Charlottesville, VA.
Bldg, Rm. .
CARB, Rockville, MD. (NIST Contact: Harold Smith, 301-738-6181, smithh@carb.nist.gov)

10:00 AM - NAVY CENTER FOR APPLIED RESEARCH IN ARTIFICIAL INTELLIGENCE (NCARAI) NAVAL RESEARCH LAB. SEMINAR--THE SEMANTIC WEB--CURRENT STATUS AND FUTURE POTENTIAL
J. Hendler , Dept. of Computer Science, Univ. of Maryland.
Bldg, Rm. .
Auditorium, Bldg. 60, Naval Research Lab., Washington, DC. (NIST Contact: - -, 202-404-7037, symposia@aic.nrl.navy.mil) http://www.aic.nrl.navy.mil/seminars/



4/9 -- TUESDAY

No Scheduled Events

4/10 -- WEDNESDAY

8:30 AM - NATIONAL COUNCIL ON RADIATION PROTECTION AND MEASUREMENTS ANNUAL MEETING
Theme: Where the New Biology Meets Epidemiology: Impact on Radiation Risk Estimates---- Scientific Session, April 10, 8:30 a.m. to 5:00 p.m.---- 26th Lauriston S. Taylor Lecture--April 10, 5:00 p.m.--- "Developing Mechanistic Data for Incorporation into Cancer Risk Assessment: Old Problems and New Approaches," Dr. R. Julian Preston, U.S. Environmental Protection Agency, Research Triangle Park, NC.--- Reception immediately following the lecture in honor of Dr. Preston.---- Business Meeting and Scientific Session, April 11, 2002--8:30 a.m. to 12:45 p.m.
- - , -.
Bldg, Rm. .
Crystal Forum at the Crystal City Marriott, Arlington, VA. (NIST Contact: David Gilliam, 301-975-6206, david.gilliam@nist.gov)



4/11 -- THURSDAY

No Scheduled Events

4/12 -- FRIDAY

8:15 PM - PHILOSOPHICAL SOCIETY OF WASHINGTON LECTURE: ANIMAL COMMUNICATION AND AWARENESS: FROM ETHOLOGY TO BIOETHICS
Ethology, the study of animal behavior, is a phenomenological science of the subjective that provides a window into the animal mind. Ethological studies will be reviewed concerning animal emotions, communication, and the biological basis for ethical behavior. The presentation, which will include slides, links the evolution of empathy and altruistic behavior in humans and other animals with the emergence of morality and the human imperative to develop a global bioethics.
Michael W. Fox , -.
Bldg, Rm. .
John Wesley Powell Auditorium, Cosmos Club, Washington, DC. (NIST Contact: Michael P. Cohen, 202-366-9949, michael.cohen@bts.gov) http://www.philsoc.org

8:00 AM - MEMS ALLIANCE WORKSHOP ON OPTICAL MEMS AND RELIABILITY
The MEMS Alliance has organized a Spring Workshop on Optical MEMS and Reliability. Speakers include Suzanne Arney (Lucent), Theresa Maudie (Motorola), Joey Bernstein (UMD), Harvey Mosley (NASA), and Bill Sharpe (Johns Hopkins). There will also be a student poster session on work from local universities.
Suzann Arney , (Lucent). Theresa Maudie (Motorola), Joey Bernstein (UMD), Harvey Mosley (NASA), and Bill Sharpe (Johns Hopkins)
Bldg, Rm. .
Johns Hopkins Applied Physics Labs. (NIST Contact: Michael Gaitan, 301-975-2070, gaitan@nist.gov) http://www.memsalliance.com/Workshops/Spring02/MEMSAlliance-Spring02.pdf



ADVANCE NOTICE

5/30/02 10:00 AM - UNIVERSITY OF MARYLAND'S (UMD) HUMAN-COMPUTER INTERACTION LAB
HCIL's 19th Annual Symposium & Open House activities will be held on Thursday - May 30 and Friday - May 31, 2002 at the University of Maryland, College Park. Register on-line at http://www.cs.umd.edu/hcil/soh Come hear the presentations, participate in the discussions, and see the latest HCI research and technologies! Want to learn more about HCI projects--hands-on? Pre-symposium tutorials & workshops are being offered on Thursday, May 30 from 10:00 a.m.-4:00 p.m. Reception following. For more information go to http://www.cs.umd.edu/hcil/soh
. . , ..
Bldg, Rm. .
UMD, College Park, MD. (NIST Contact: Trina Harris, -, tharris@cs.umd.edu) http://www.cs.umd.edu/hcil/soh

---

TALKS BY NIST PERSONNEL

IRIKURA, K. : ISOPOTENTIAL SEARCHING FOR DISCOVERING CHEMICAL REACTIONS.
223rd National Meeting of the American Chemical Society, Orlando, FL, 4/8.

LINHOLM, L. : ELECTRICAL LINEWIDTH AND OVERLAY.
IEEE International Conf. on Microelectronic Test Structures, University College, Cork, Ireland, 4/8.

CRESSWELL, M. : -TEST STRUCTURES FOR REFERENCING ELECTRICAL LINEWIDTH MEASUREMENTS TO SILICON LATTICE PARAMETERS USING HRTEM.
IEEE International Conf. on Microelectronic Test Structures 2002, University College, Cork, Ireland, 4/9.

WILSON, P. : CORRELATION OF MOLECULAR ORIENTATION WITH ADHESION AT POLYMER/SOLID INTERFACES.
General Electric Corporate Research, Niskayuna, New York, 4/9.

WALLACE, W. : ADVANCES IN THE MASS SPECTROMETRY OF SATURATED HYDROCARBON POLYMERS.
American Chemical Society Meeting, Orlando, FL, 4/11.

CHAKA, A. : CURRENT AND FUTURE NEEDS FOR IMPROVEMENTS IN ELECTRON CORRELATION METHODOLOGY: THE INDUSTRIAL PERSPECTIVE.
223rd National Meeting of the American Chemical Society, Orlando, FL, 4/11.

CHAKA, A. : THE EFFECT OF THE ENVIRONMENT ON ALUMINUM, IRON, AND CHROMIUM OXIDE SURFACES.
Department of Physics, Tulane University, New Orleans, LA, 4/12.

---

ANNOUNCEMENTS

ENVIRONMENTAL SERVICES GROUP COMMEMORATES EARTH DAY
On Monday, April 15th, 2002, NIST, under the auspices of the Environmental Services Group, will commemorate Earth Day. Tables will be set up in the cafeteria in building 101 and in 301 to dispense promotional items and information pieces related to Earth Day and, more generally, to the greening of NIST. The commemoration is to raise the consciousness of the NIST community, especially of potential champions of recycling and greening, to the necessity and importance of using products that are environmentally friendly. Environmental Services Group recycling efforts will be promoted. Displays will be set up featuring all the various items that can be recycled. Recognition will also be given to the efforts of other groups at NIST to further the use of products friendly to the environment, e. g., the purchasing of recycled paper at Acquisitions and Logistics, and the installation of low-flow plumbing fixtures by Plant. Because one of the themes of Earth Day involves saving the planet for our children, the cafeteria displays will include creative art work by the children of the NIST Child Care.
NIST Contact: DuWayne Engelhart, 301-975-5921, duwayne@nist.gov

UPDATE OF NRC/NIST POSTDOCTORAL RESEARCH ASSOCIATESHIPS PROGRAM BOOK FOR 2003 AND CALL FOR ADVISER NOMINATIONS
Attention NIST postdoctoral research advisers and researchers, your laboratory offices are in the process of updating the NRC/NIST Postdoctoral Research Associateships Program Book for 2003 (deadline April 17, 2002). Please send your revised and/or new research opportunities in Rich Text Format, through your division, to your laboratory coordinators: Sheilda Bryner, EEEL; Lani Glover, MEL; Ana Salazar, CSTL; Anita Sweigert, PL; Cynthia Montgomery, MSEL; Gail Crum, BFRL; Liz Lennon, ITL. NIST researchers who are not currently advisers are welcome to apply at this time or any time during the year. However, if applying to be an adviser by the April deadline, please forward your nomination through your division, to your laboratory coordinator. To obtain a copy of the adviser nomination form, please contact Jack Hsia, Division 109, x3067, jack.hsia@nist.gov, or download the research adviser nomination form at: http://www.national-academies.org/rap. Please contact Dr. Hsia for processing procedures concerning the research adviser nomination form.
NIST Contact: Janice Campbell, 301-975-3076, janice.campbell@nist.gov

VISITOR REGISTRATION FOR NIST EVENTS
Because of heightened security at the NIST Gaithersburg site, members of the public who wish to attend meetings, seminars, lectures, etc. must first register in advance. For more information please call or e-mail the "NIST contact" for the particular event you would like to attend.
NIST Contact: Sharon Mingo, 301-975-3570, mingo@nist.gov

---

NIST WEB SITE ANNOUNCEMENTS

No Web Site announcements this week.

---

For more information, contact Ms. Sharon Mingo, Editor, Stop 2500, National Institute of Standards and Technology, Gaithersburg MD 20899-2500; Telephone: 301-975-TCAL (8225); Fax: 301-926-4431; or Email: tcal@nist.gov.

All lectures and meetings are open unless otherwise stated.

---

NVL Webmaster