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| Board
of Regents Confirms Gogue as UH System Chancellor, UH President
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| Jay Gogue is now officially
"listening."
With the University of Houston System Board of Regents approving
his appointment as the next UH System chancellor and UH president,
Gogue will "hit the ground listening," a promise
he made when announced as the finalist for the post in July.
Gogue (rhymes with "rouge") will have about a month
to hear what's on the minds of students, faculty and staff:
his first official day as chancellor/president is Sept. 2.
Current UH System chancellor and UH president Arthur K. Smith
will retire effective Sept. 1, completing six and a half years
spent leading the nation's most diverse urban research university.
Gogue is the second person to fill the role of chancellor
of the UH system and president of the UH main campus. Smith
was the first person to hold the two posts simultaneously.
Gogue was president of New Mexico State University prior to
being selected as the top administrator for UH and the UH
System.
During the next month, Gogue plans on meeting with students,
faculty, administrators and friends of the university in order
to launch his term as chancellor/president with a firm understanding
of what needs to be done to maintain the momentum UH gained
during Smith's term in office. |
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CIRCLE Receives Funding for Early Education Initiative at
U.T. Health Science Center
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| The Center for Improving
the Readiness of Children for Learning and Education (CIRCLE),
based at The University of Texas Medical School at Houston,
will receive $10 million over the next two years from the
State of Texas in order to develop a plan for early childhood
education, including developing resources for programs benefiting
early education.
The funding for CIRCLE was one of several education initiatives
passed as Senate Bill 76, co-authored by state senators Judith
Zaffirini (D-Laredo) and Juan Hinojosa (D-Mission). The legislation
becomes effective Sept. 1.
Last December, Governor Rick Perry designated CIRCLE as Texas'
state center for early childhood development. The center now
works with the Office of the Governor and the Texas Education
Agency to design plans to implement the governor's Early Start
Initiatives. As the designated state center, CIRCLE will work
to develop training for early childhood providers in Texas,
identify curriculum materials for voluntary state standards
and focus on pre-literacy skills development. The center will
also formulate school-readiness checklists for parents and
further coordinate efforts among early childhood funds and
programs. |
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$6.5 Million Committed to San Antonio Life Sciences Institute
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| The University of Texas
System and its two institutions in San Antonio will allocate
$6.5 million for the initial support of the San Antonio Life
Sciences Institute, which will promote education, research,
and economic development in biomedicine and biotechnology.
The institute, which was created by the Legislature in 2001
but has not been funded by the state, is a collaboration between
U.T. San Antonio and the U.T. Health Science Center at San
Antonio.
Of the total investment, $4.5 million will constitute a Research
Enhancement Fund for the institute. This funding includes
$2.5 million that Yudof has made available from the Chancellor's
Special Projects Fund, which is derived from excess reserves
for medical liability litigation, and $1 million in matching
funds from each of the institutions.
UTSA will commit an additional $2 million in endowment funds
for the support of two faculty members who will have joint
appointments at the two institutions. This funding will come
from the university's Lutcher Brown Endowment, which is dedicated
to the promotion of academic excellence at UTSA. The endowment
was created in the 1980s from the sale of the 25-acre Lutcher
and Emily Wells Brown estate in the Terrell Hills section
of San Antonio.
Although the institute has not been funded until this time,
the two institutions have already been collaborating on a
variety of biomedicine and biotechnology projects. The institutions,
for example, operate a joint Ph.D. degree program in biomedical
engineering. They have also submitted joint grant applications
to the National Institutes of Health for studies related to
health disparities among minority populations, and they are
collaborating with Brooks Air Force Base on several projects
related to biotechnology and defenses against bioterrorism.
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FNIS donates FEMA flood maps to UTA
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Representatives of FNIS Flood Services, a division of FNIS,
a comprehensive source for real estate-related technology,
data, solutions and services, have announced the donation
of the complete set of FEMA (Federal Emergency Management
Agency) flood maps to The University of Texas at Arlington
(UTA) College of Science Environmental Science and Engineering
program.
The donation is valued at over $335,000 and includes over
100,000 individual paper maps along with a complete set of
digital map images. University representatives will receive
this gift at 9:30 a.m. Thursday, August 7th, on the 6th floor
of the UTA Central Library in the Special Collections area.
The FEMA maps delineate flood insurance requirements nationwide.
The hard copies for the Texas set will be housed in the University's
Central Library as part of the Virginia Garrett Cartographic
History Library. The digital maps will also be made available
at the Central Library.
In compliance with the National Flood Insurance Program,
FNIS Flood Services provides flood determinations, data and
tracking services to national lenders. FNIS is the first flood
data provider to acquire and implement a nationwide set of
flood maps in FEMA's new digital format. It was this aggressive
industry leadership that provided the impetus for the donation.
By incorporating digital flood layers with interactive road
layers, digital tax/plat maps, aerial images and other property
data, FNIS Flood Services has reduced turnaround times and
increased productivity by more than 50 percent.
Based in Arlington, Texas, FNIS Flood Services has enjoyed
a long-standing relationship and a unique alumni allegiance.
Today, more than fifty-percent of FNIS Flood Services' employees
have attended UTA or are currently enrolled there.
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TAMS Receives $87,100 Grant from TI Foundation
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| The Texas Academy of
Mathematics and Science has received $87,100 from Texas Instruments'
TI Foundation to support the program during the 2003-04 academic
year.
The grant will benefit 65 economically needy students in
the academy, a two-year residential program at the University
of North Texas (UNT) that allows talented students to complete
their freshman and sophomore years of college while earning
their high school diplomas.
Students enroll in the academy following their sophomore
year in high school, live in a UNT residence hall and attend
UNT classes with college students. After two years, they enroll
at UNT or another university to finish their bachelor's degrees.
Since it opened in August 1988, TAMS has been funded by the
Texas Legislature as a special line item in the state budget.
The academy had received about $1.7 million annually from
the legislature to cover operating expenses and tuition, books
and fees for approximately 380 students each academic year.
The students' parents paid only for room and board -- approximately
$4,400 per year.
However, the state's budget shortfall caused the academy's
funding to be cut by 12.5 percent for the 2003-04 academic
year. Parents were asked to pay $1,000 in addition to room
and board costs to enroll their students in the academy.
Out of the 214 new academy students and 162 students returning
for their second year, 65 students will be on financial aid
this coming academic year. The TI Foundation grant will support
the additional $1,000 that these students' parents would have
been required to pay, said Dr. Richard Sinclair, TAMS dean.
Sinclair said that in addition to covering the additional
$1,000, the grant may be used to cover UNT's potential increase
in tuition for the spring 2004 semester.
The extra $1,000 required of parents resulted in 44 students
who were admitted to the TAMS Class of 2005 to decide not
to attend. But Sinclair said the academy was able to easily
fill the class because it had a record number of applications
for this academic year. |
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6 New Degree Programs Approved by University of Texas Board
of Regents
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Six new undergraduate and graduate degree programs at the
academic and health institutions within the University of
Texas System were approved by the Board of Regents on Thursday
(August 7). The programs will go the Texas Higher Education
Coordinating Board for final approval.
The programs include
- a master's degree in physics at U.T. Brownsville.
- a Ph.D. in interdisciplinary health sciences at U.T. El
Paso.
- a master's degree in occupational therapy at U.T. Pan American.
- master's and Ph.D. degrees in clinical science at the U.T.
Medical Branch at Galveston.
- a master's degree in respiratory care at the U.T. Health
Science Center at San Antonio.
The board also approved new long-range plans for additional
degree programs at academic institutions. These revised plans
will also go to the Coordinating Board so the institutions
can receive authority to begin planning for the programs.
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SHSU, UH To Sign Agreement for Joint Program
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After over a year of planning, an agreement between Sam Houston
State University and the University of Houston to allow criminal
justice doctoral students to receive credit for a law degree
will become official on Aug. 21.
The signing will take place at a ceremony at 4:30 p.m. in
the Frankel Rare Books Room, on the second floor of the Bates
Law Building at the UH Law Center.
Sam Houston State criminal justice dean Richard Ward and
associate dean Randy Garner will officially sign the agreement
that gives SHSU criminal justice Ph.D. students the opportunity
to receive credit for the Doctor of Jurisprudence degree offered
by the University of Houston.
Under the agreement, law students will be able to receive
credit for upper level course work at UH for a Doctor of Philosophy
in criminal justice from SHSU.
Not only one-of-a-kind, the program is the only one of its
kind in Texas.
UH Law School will count up to 15 criminal justice graduate
credits from SHSU towards a J.D., and SHSU will count up to
15 law graduate credits from UH towards a Ph.D. Interested
students must apply to both programs (SHSU & UH) and must
declare their intentions during the first year.
In addition to applying and being accepted at both universities,
those interested are responsible for taking both the Law School
Admissions Texas (LSAT) and the Graduate Record Examination
(GRE).
SHSU currently offers an independent Ph.D. in criminal justice,
but the only law curriculum for students is a pre-law emphasis
at the undergraduate level.
With the agreement, the addition of the added coursework will
be more appealing to students, who could be more marketable
with the coursework, and for the university.
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UTHCT Receives State Government Approval to Establish East
Texas Center for Rural Geriatric Studies
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| The University of Texas
Health Center at Tyler has received approval from the governor
and the Texas Legislature to establish the East Texas Center
for Rural Geriatric Studies, said UTHCT President Dr. Kirk
A. Calhoun.
Being designated a rural geriatric center by the state of
Texas allows UTHCT to apply for federal research grants, he
said.
Senate Bill 1642, which established the rural geriatric center,
was passed in May during the regular session of the Texas
Legislature. The bill was introduced by State Sen. Todd Staples,
R-Palestine, and co-sponsored by State Sen. Bill Ratliff,
R-Mount Pleasant. The bill was supported by the entire East
Texas legislative delegation, including State Reps. Tommy
Merritt, R-Longview; Leo Berman, R-Tyler; Chuck Hopson, D-Jacksonville;
Bryan Hughes, R-Mineola; and Jim McReynolds, D-Lufkin. Gov.
Rick Perry signed the bill into law in June. |
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UTA School of Nursing to Offer Emergency Nurse Practitioner
Program
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| The University of Texas
at Arlington TA School of Nursing will offer an Emergency
Nurse Practitioner (ENP) Program in the spring of 2004. This
program provides graduates with a Masters of Science in Nursing
or a certificate as an ENP. ENPs function in a variety of
emergency departments and provide both emergent and non-emergent
care to patients and their families.
The ENP Program is 51 hours for an MSN and maximum of 34
hours for a Post-Masters Certificate. The number of hours
in the certificate program varies based on the educational
preparation of applicants. The director of this program is
Dr. Mary Schira, PhD, APRN, ACNP. |
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Weber Returns to M. D. Anderson to Lead Department of Head
& Neck Surgery
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| Randal S. Weber, M.D.
returns to The University of Texas M. D. Anderson Cancer Center
to head the Department of Head and Neck Surgery, a department
where he spent the early part of his career.
Weber returns to M. D. Anderson after serving more than seven
years as the vice chair of the Department of Otorhinolaryngology
- Head and Neck Surgery and director of the Center for Head
and Neck Cancer at the Hospital of the University of Pennsylvania
in Philadelphia.
He joined the Hospital of the University of Pennsylvania
in 1996 after coming to M. D. Anderson as a fellow in head
and neck surgery in 1985. After a one-year fellowship, Weber
joined the faculty and within five years was named an associate
professor of surgery. While on the faculty of M. D. Anderson,
Weber held a joint appointment in the Department of Otorhinolaryngology
and Communicative Sciences at Baylor College of Medicine.
Weber assumed the M. D. Anderson position in mid July with
the retirement of Helmuth Goepfert, M.D., on August 31. Goepfert
has been chair of the Department of Head and Neck Surgery
since 1982, and a faculty member since 1966.
Head and neck surgeons oversee the surgical management of
cancers of the larynx, throat, oral cavity, salivary glands,
tongue, skull base, sinuses and other specific regions in
the head and neck, and collaborate with medical oncologists,
reconstructive surgeons, speech pathologists and radiation
oncologists in an effort to preserve form and function of
these vital body parts.
Weber says his primary research interests are in treatments
that minimize surgical removal of vital parts of the head
and neck region, targeted therapies and prevention programs
for at-risk individuals including teens who are addicted to
tobacco by the time they are young adults.
A native of Chattanooga, Weber graduated from the University
of Tennessee Center for Health Sciences Medical School in
Memphis followed by a surgical internship at the National
Naval Medical Center in Bethesda, Md. He completed his surgical
and otolaryngology residencies at Baylor College of Medicine
before coming to M. D. Anderson in 1985 for a one-year fellowship.
During his fellowship at M. D. Anderson, Weber trained under
Dr. Goepfert, the outgoing chair of head and neck surgery.
Weber has been named among the nation's top physicians by
various organizations six times and is the past recipient
of the Louis Duhring Outstanding Clinical Specialist Award
given by the University of Pennsylvania Health System.
As chief of head and neck cancer at the Hospital of the University
of Pennsylvania, Weber taught residents and fellows management
of head and neck tumors and gave numerous lectures annually
to medical students, residents and practitioners on subjects
related to head and neck oncology. He has given more than
60 professional lectures in addition to his teaching. Weber
has authored or contributed to more than 125 scientific publications,
book chapters or editorials. |
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Gelovani Joins M. D. Anderson to Lead Experimental Diagnostic
Imaging
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| Juri G. Gelovani, M.D.,
has joined The University of Texas M. D. Anderson Cancer Center
as professor and chair of the Department of Experimental Diagnostic
Imaging in the Division of Radiation Oncology.
Before joining the faculty at M. D. Anderson, Gelovani served
as the head of the molecular-genetic and cellular imaging
section in the Department of Radiology at Memorial Sloan-Kettering
Cancer Center.
Molecular imaging combines new molecular agents with traditional
imaging tools to create more targeted therapies with the objective
to simultaneously find, diagnose and treat disease. Gelovani's
research is focused on developing new approaches to molecular
imaging that would help detect cancer at an earlier stage
and enable care teams to assess the extent of the disease
sooner - making a significant impact on the diagnosis, therapy
and management of cancer.
Gelovani has developed and introduced into clinical settings
several molecular imaging tools and applications, including
a radiotracer for imaging DNA synthesis during the growth
and spread of brain tumors. He also developed and validated
the original methodology for the HSV1-tk marker gene using
radio-labeled Fialuridine (FIAU) and its analogues for non-invasive
monitoring of novel anti-cancer gene therapies; a discovery
that initiated a new interdisciplinary field in biology and
medicine.
A native of the Republic of Georgia, Gelovani received his
medical degree and doctorate in neurosurgery from Tartu University
in Estonia and completed his fellowship in neuro-oncology
at Memorial Sloan-Kettering. In 2001, he received the International
Fellow Award from the Alexander von Humboldt Foundation.
A member of the editorial review boards for Molecular Imaging
and Neoplasia, Gelovani also has served on advisory boards
for the development of several molecular imaging programs
and protocols. In addition to his memberships in the American
Association for Cancer Research and the American Society for
Gene Therapy, Gelovani is the co-founder of the European Society
for Neuro-Oncology and the Society for Molecular Imaging,
which awarded him a gold medal for his contributions to the
field in 2002. |
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SMU School of Engineering Appoints Two New Board Members
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| Two new members have
been appointed to the Executive Board of the Southern Methodist
University (SMU) School of Engineering.
The new members are Tony Affuso and Clifton Triplett.
Tony Affuso is president of EDS' PLM Solutions line of business
and a member of EDS' Executive Operations Team. PLM Solutions
develops software to support the collaborative engineering
and manufacturing of products in the automotive, aerospace,
consumer products, high-tech, retail and machine/tooling industries.
The line of business employs 5,250 people in 140 sales offices
and 23 research and development centers throughout the world.
Clifton Triplett is the Global Process information officer
for Manufacturing and Quality at General Motors Information
Systems and Services (IS&S) organization. In this position,
he is responsible for driving common processes and systems
across all the various GM manufacturing and quality business
functions to maximize business results. His areas of responsibility
include process and systems support of manufacturing, industrial
engineering, manufacturing engineering and quality.
Board members work with Dean Stephen Szygenda and his leadership
team to promote interaction between the school and industry
and to implement new programs in the school, including its
new executive master's degrees in engineering, its new Industry
Scholars and Research Scholars programs, and its new Gender
Parity Initiative. |
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Neeley School Appoints New Members to Advisory Board
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| The M.J. Neeley School
of Business at Texas Christian University (TCU) has appointed
Maribess Miller, managing partner of PricewaterhouseCoopers'
Dallas office; Phil Norwood, chairman of the board, president
and CEO of Summit Bancshares, Inc. and Summit Bank, N.A.;
and David P. Purcell, founder and managing partner of Continental
Advisors, LLC, to serve four-year renewable terms on the school's
international advisory board. All were appointed July 1.
Purcell, Miller and Norwood join more than 40 other local,
national and international senior-level executives providing
program development and other guidance to the Neeley School's
dean, faculty and staff.
Miller, who earned a degree in accounting at TCU, is the
managing partner and a certified public accountant at PricewaterhouseCoopers
in Dallas. She joined the firm in 1975 and was named a partner
in 1984. She is a member of the American Institute of CPAs
and the Texas Society of CPAs.
Norwood, a Fort Worth native and 1972 graduate of TCU, currently
serves as chairman of the board, president and CEO of Summit
Bancshares, Inc. and Summit Bank, N.A. He began his career
in the local banking industry in1970 and currently oversees
$680 million in assets and six Summit Bank locations in Tarrant
County.
Purcell is the managing partner of Continental Advisors,
LLC, an SEC-registered investment adviser, managing financial
services and healthcare sector hedge funds. He received a
B.B.A. in finance from TCU and a M.B.A. in finance from the
University of Chicago. |
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Moorman Promoted to UNTHSC's Executive Director of Student
Affairs
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| Thomas Moorman, EdD,
has been promoted to executive director of student affairs
at the University of North Texas Health Science Center (UNTHSC).
In his new position, Dr. Moorman oversees the division of
student affairs, including the registrar, financial aid, academic
support services and student development.
Dr. Moorman has worked at the health science center for nine
years, advancing from a student development coordinator to
the assistant dean for admissions and student services for
the School of Public Health.
During the 2002-2003 academic year, Dr. Moorman was recognized
for his outstanding service and contributions to the Public
Health Student Association.
He earned his bachelor's degree and master's degree from
Texas A&M University and a doctorate from the University
of North Texas. |
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SFA Human Sciences Chair Retiring After 31 Years at SFA
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| One of Dr. Gloria Durr's
final duties as chair of the Department of Human Sciences
at Stephen F. Austin State University (SFA) is to deliver
the commencement address at SFA's graduation ceremony on Saturday,
Aug. 16. Durr has served as a member of the faculty for 31
years.
The study of home economics at SFA is as old as the university
itself. Food classes were taught at the local high school
before the university's first building, the Austin Building,
was even complete. The first clothing classes were taught
in what is now the Old Stone Fort museum. Despite its lengthy
existence, the department has been chaired for the past 80
years by only four leaders.
Today the department has approximately 400 students studying
a wide range of topics, including child and family development,
fashion merchandising, food and nutrition, family studies,
hospitality administration and interior design. To reflect
the broad scope of studies, the name of the department was
changed in 1994 from the Department of Home Economics to the
Department of Human Sciences.
Although Durr has received numerous awards during her tenure
at SFA, including a distinguished service award from the Vocational
Home Economics Teacher Association of Texas in 1999, the Professional
of the Year award by the Texas Association of Family and Consumer
Sciences in 1998 and selection as Regents Professor by the
SFA board of regents in 1991, Durr's tenure will be remembered
for the programs established under her direction.
The fashion merchandising program, the hospitality administration
program and the interior design program were added under Durr's
leadership.
Durr said that, regardless of the chosen career path, the
study of human sciences ensures a brighter future for every
student.
Regardless of the wide variety of course offerings, the area
of study closest to Durr's heart is consumer education. Durr
helped to create the Center for Economic Education at SFA,
which provides in-service education for public school teachers
in East Texas. Because it is easier than ever for college
students to get into debt, Durr said the program is particularly
important.
Dr. Lynda J. Martin from Oklahoma State University will replace
Durr as chair of the department. |
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U.T. Dallas Space Scientist Hoffman on Team Selected by NASA
for 2007 Unmanned Mars Mission
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| A space scientist at
The University of Texas at Dallas (UTD) is a member of a team
selected by the National Aeronautics and Space Administration
(NASA) to undertake the first of the space agency's "scout"
missions to the planet Mars, scheduled for launch in 2007
and arrival one year later.
The goal of the unmanned mission is to conduct a variety
of scientific experiments from a lander that will dig a trench
in the surface in an attempt to discover where the water that
ran over the surface of Mars eons ago has gone.
Dr. John H. Hoffman, a UTD physics professor and member of
the university's William B. Hanson Center for Space Sciences,
will receive funding of approximately $4 million to build
the project's mass spectrometer instrument system, which will
be connected to a series of ovens designed to "cook"
materials dug from the trench to determine their water content.
In addition to performing sub-surface soil studies, the instrument
will analyze the atmosphere of Mars.
Hoffman is a member of a team of researchers lead by Dr.
Peter Smith of the University of Arizona in Tucson. The team's
concept for the Mars Scout mission - called Phoenix to symbolize
rising out of the failed 1999 lander mission to Mars - won
a competition against proposals from three other research
teams. The selection of the winning team was announced earlier
today by the space agency.
Phoenix involves placing a lander laden with sensors onto
the Martian surface in the northern region where the Mars
Odyssey spacecraft has observed excess amount of hydrogen
that most likely comes from sub-surface water.
In addition to the trench experiment, Phoenix instruments
will study the atmosphere and climate history of Mars. If
Mars has had copious amounts of running water in the distant
past, as channels on the surface indicate, the climate in
the early times likely was greatly different from that of
today.
Hoffman, who has worked at UTD and its predecessor research
institution since 1966, has designed and built scientific
instruments that have flown on numerous missions of exploration
- both manned and unmanned - into space and to other planetary
bodies and objects, including the moon, Venus and Halley's
Comet.
Hoffman's work on Phoenix is one of many projects under way
at UTD's Hanson Center for Space Sciences. Other significant
work includes space weather research being done by Dr. Roderick
A. Heelis, director of the center and chairman of the physics
department, under a $10-million grant from NASA, and associate
professor Dr. Gregory D. Earle's study of winds in the ionosphere,
another NASA project. |
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HSC Physician is First in Region to Do Endoscopic Ultrasonography
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| Dr. Riaz Chowdhury and
other world leaders in the medical specialty of gastroenterology
are improving the care of cancer patients through a major
advance in the field - an imaging technique called endoscopic
ultrasonography (EUS). This minimally invasive procedure is
hailed as a safe way to diagnose cancers of the upper and
lower gastrointestinal tracts and more accurately set treatment
strategy.
Dr. Chowdhury, assistant professor of medicine at The University
of Texas Health Science Center at San Antonio, uses endoscopic
ultrasonography to locate and study esophageal, stomach and
duodenal tumors in the upper GI tract, and colon and rectal
tumors in the lower tract. Thanks to EUS, he can determine
the size of a tumor and the extent of its invasion into surrounding
tissue - both important factors for advising patients on treatment
options. Studies show EUS is more accurate than traditional
approaches including CT scans. Users can even image tumors
as small as 2 or 3 millimeters in diameter.
UTHSC, in collaboration with the Cancer Therapy and Research
Center (CTRC), is the first institution to offer endoscopic
ultrasonography in San Antonio and South Texas. Dr. Chowdhury,
who is performing the technique on five to six patients a
week at CTRC's Grossman Cancer Center, recently presented
an EUS update for university and community physicians.
By using an instrument called a linear echoendoscope, Dr.
Chowdhury can see five layers of digestive tract anatomy -
a view not possible with CT scans. The procedure also is useful
for studying organs such as the pancreas and gallbladder,
which are next to the GI tract.
The procedure costs a little more than regular endoscopy
($800 vs. $600), but Dr. Chowdhury said the benefits to patients
far outweigh the extra cost. He has done about 100 cases since
March and is the first physician in San Antonio to do the
procedure.
Dr. Chowdhury presented data from the medical literature
showing EUS is more effective than CT scanning and other techniques
for diagnosis and preoperative staging of esophageal, pancreatic,
rectal, gastric and colon cancer, and even lung cancer. Physicians
also can use EUS to establish a celiac plexus block for the
relief of abdominal cancer pain. A fine needle may be incorporated
to the EUS instrument for acquiring biopsies of lymph nodes.
EUS has been used for about five years in practice in other
areas of the country. |
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Pigeonholing Quantum Phase Transitions at Rice
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| A team of physicists
led by researchers at Rice University has developed the first
thermodynamic method for systematically classifying quantum
phase transitions, mysterious electromagnetic transformations
that are widely believed to play a critical role in high-temperature
superconductivity.
The new research is described in two papers - one theoretical
and one experimental -in the Aug. 8 issue of Physical Review
Letters. The theoretical paper predicts that a mathematical
irregularity called a divergence occurs at every "quantum
critical point," a stage materials pass through as they
change phases. The experimental paper reports the observation
of such a divergence in the quantum critical points of two
metals with very different quantum signatures. The lead researcher
is Qimiao Si, an associate professor of physics and astronomy
at Rice.
Matter commonly transforms itself via phase changes. Melting
ice and boiling water are examples of phase transitions that
arise from changes in temperature, which can easily be described
using classical physics. Within the past decade, physicists
have detected quantum phase transitions, changes that arise
entirely from quantum fluctuations - the jittering of subatomic
particles as described by Heisenberg's uncertainty principle.
Every phase transition, whether classical or quantum, is
marked by a change in the way matter is ordered. For example,
when ice melts, water molecules change from an ordered crystal
lattice to a disordered fluid. In quantum phase transitions,
which occur in rare earth metals called heavy fermions, electrons
change from magnetic to paramagnetic. As the metals change
quantum phases, they pass through a stage known as the "critical
point" in which all electrons throughout the material
respond collectively and can no longer be regarded as individual
particles.
The new theoretical work by Si and Rice graduate student
Lijun Zhu, in collaboration with Achim Rosch's group at the
University of Karlsruhe, Germany, sprang from the fact that
thermodynamic quantities - like specific heat - often diverge
at classical critical points. The team predicted that the
Grüneisen ratio - the relative value of thermal expansion
to specific heat - would diverge in a very predictable manner
in any material as it approached a quantum critical point.
To test the theory, Si and Zhu collaborated with Frank Steglich's
experimental group from the Max-Planck Institute for Chemical
Physics of Solids in Dresden, Germany. Steglich, together
with his colleagues John Mydosh, Philipp Gegenwart and Robert
Küchler, chose two heavy fermion compounds that are based
on cerium and ytterbium. The quantum critical points for each
occur at absolute zero, the coldest temperature possible.
Since it is impossible to achieve absolute zero in a laboratory,
the team cooled the metals to within a few hundredths of a
degree above absolute zero. They found that the Grüneisen
ratio diverged as predicted in both metals as they approached
absolute zero.
From the divergences, the researchers concluded that the
two metals belong to two different classes of quantum phase
transition. One of these is the locally-critical quantum phase
transition, a new class of quantum phase transition first
proposed by Si and colleagues in an article in Nature two
years ago.
Materials scientists are interested in superconductors because
they conduct electricity with no resistance. In standard conductors,
like copper or aluminum, a significant percentage of power
is lost due to resistance, the tendency of the wires to convert
some electricity into heat. Most superconductors must be cooled
to near absolute zero before they superconduct. High temperature
superconductors operate at temperatures as high as minus 164
degrees Fahrenheit, far above the boiling point of liquid
nitrogen, an important milestone for those interested in designing
practical systems that are both technologically and economically
feasible.
Heavy fermion metals are prototype systems for quantum criticality.
When these metals reach their quantum critical point, the
electrons within them act in unison and the effects of even
one electron moving through the system cause widespread effects
throughout. This is very different from the electron interactions
in a common wiring material like copper. It is these collective
effects that have increasingly convinced physicists of a possible
link between superconductivity and quantum criticality.
The research was supported by the National Science Foundation,
the Robert A. Welch Foundation, and the Texas Center for Superconductivity
and Advanced Materials at the University of Houston. |
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Main Regulator of Membrane Trafficking Not What Researchers
Once Thought, Scientists Discover
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| Researchers at UT Southwestern
Medical Center at Dallas have identified a main regulator
of the system that controls membrane trafficking, debunking
what scientists for a decade had thought controlled this process.
The Golgi - described as the "grand central sorting
station" of the cell by scientists - is regulated by
phosphatidylinositol 4 phosphate (PI4P) instead of phosphatidylinositol
4,5 bisphosphate (PIP2), which was believed to be the main
regulator of this system. Both lipids are essential for recruiting
proteins to the membrane.
The findings appear in the current issue of Cell. Dr. Helen
Yin, professor of physiology, is the study's senior author.
PI4P acts as a zip code by directing proteins to the Golgi.
An understanding of this system gives researchers insight
into membrane trafficking, a vital process for cell survival.
Diseases like Alzheimer's and Parkinson's are a result of
problems associated with protein trafficking, Dr. Yin added.
Other UT Southwestern researchers contributing to the study
include Dr. Ying-Jie Wang, lead author and a postdoctoral
researcher in physiology; Dr. Joseph Albanesi, professor of
pharmacology; Manuel Martinez, research assistant in physiology;
Dr. Michael Roth, professor of biochemistry; Dr. Hui-Qiao
Sun, assistant professor of physiology; Dr. Yuxiao Sun, postdoctoral
researcher in molecular biology; and Jing Wang, a student
research assistant in physiology. Researchers at Harvard Medical
School also contributed to the work.
The study was funded by the National Institutes of Health
and the Welch Foundation. |
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U.T. Dallas' School of Management Finally Has a Place to
Call Home
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| When classes begin for
the 2003-04 academic year at The University of Texas at Dallas
(UTD) on Aug. 21, the largest of UTD's seven schools, the
School of Management, finally will have a place to call home
- a 204,000-square-foot, state-of-the-art, $38-million new
building.
The facility, located at the southeast corner of Drive A
and University Parkway on the UTD campus and designed by the
architectural firm of Omniplan, will feature, among other
things, 29 classrooms, two large computer labs, a 350-seat
auditorium, break-out spaces for undergraduate, graduate and
executive education student groups, desktop Internet access
in every classroom, wireless network access throughout, audiovisual
and online learning support in every classroom and conference
rooms and office space for all 96 of the school's faculty
members.
Until now, the School of Management faculty, staff members
and students have been using no fewer than seven buildings
on the UTD campus. The new facility will enable all of the
school's operations to be housed under the same roof for the
first time.
Enrollment at UTD's School of Management, which was founded
in 1975, has increased 80 per cent over the last six years
to more than 4,300 students. Last January, a study published
by OR/MS Today, a publication of the Institute for Operations
Research and Management Sciences (INFORMS), ranked the school
sixth worldwide in research productivity in operations management
and management information systems over the last six years.
Dean Hasan Pirkul said he thought that the new building was
a factor in his ability to recruit the top-notch faculty that
garnered the OR/MS Today recognition.
Pirkul will host an open house at the new facility on Sept.
30, and a formal dedication of the building will be scheduled
in the near future. |
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