ThOMAs: the other means of assessment.

PubMed

Williams, Andrew N; Debelle, Geoffrey D; Davies, Paul; Barrett, Tim G

2005-02-01

We describe a pilot study to investigate whether drawing "Thomas the Tank Engine" could be as effective a measure of developmental progress as the Goodenough-Harris Draw A Man test against the ThOMAs test (The Other Means of Assessment), with internal validation. The study included 95 children aged between 3 and 11 years of age, including a subgroup of 13 children with registered special needs from community and general pediatric clinics within Birmingham, UK, as a means of validation. There was no significant evidence that ThOMAS was either culturally or sex biased. Using regression analysis, nine items were found to correlate highly with actual age, and their total score gave a correlation of 0.563 with age. Adding further items did not increase this. After being converted into age-standardized scores, ThOMAS was as sensitive and specific as the Draw A Man test, and more so above a defined age-standardized threshold. This pilot study suggests that drawing Thomas the Tank Engine would appear to be as sensitive and specific a means of identifying children with special needs as the Goodenough-Harris Draw A Man test. The relatively small sample size means that further research is necessary to further define the age standardizations and to refine the ThOMAs test.

Thomas in Spacehab module

NASA Image and Video Library

1996-05-24

S77-E-5089 (25 May 1996) --- Astronaut Andrew S. W. Thomas, mission specialist, interrupts a Spacehab task to pose for an Electronic Still Camera (ESC) snapshot inside the Spacehab Module onboard the Earth-orbiting Space Shuttle Endeavour. In upper left is the view port which crew members had used for viewing and photographing operations with the Spartan 207/Inflatable Antenna Experiment (IAE). Thomas has his hand on an aft-bulkhead-mounted locker. The Space Experiment Facility (SEF), designed and managed by the University of Alabama, is just behind his left shoulder.

[Thomas Addison and the adrenal gland].

PubMed

Smans, Lisanne C C J; Zelissen, Pierre M J

2012-01-01

The famous and beautifully illustrated monograph "On the Constitutional and Local Effects of Disease of the Suprarenal Capsules" was published by Thomas Addison in 1855. This was the first description of the disease that now bears his name. Thomas Addison provided the first real contribution to the knowledge of adrenal function after three centuries of non-productive speculation and is one of the founders of modern endocrinology.

STS-102 Crew Interviews/Andy Thomas

NASA Technical Reports Server (NTRS)

2001-01-01

STS-102 Mission Specialist Andy Thomas is seen being interviewed. He answers questions about his inspiration to become an astronaut and his career path. He gives details on the mission's goals and significance, its payload (ISS-07/5A1 (MPLM-1)), and spacewalks. Thomas discusses the upcoming transfer of the International Space Station's (ISS) crew Expedition 1 and Expedition 2 and the role of the Mir Space Station in the evolution and success of the ISS.

Jim Thomas: A Collection of Memories

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wong, Pak C.

Jim Thomas, a guest editor and a long-time associate editor of Information Visualization (IVS), died in Richland, WA, on August 6, 2010 due to complications from a brain tumor. His friends and colleagues from around the world have since expressed their sadness and paid tribute to a visionary scientist in multiple public forums. For those who didn't get the chance to know Jim, I share a collection of my own memories of Jim Thomas and memories from some of his colleagues.

75 FR 4061 - Favinger, Thomas; Notice of Filing

Federal Register 2010, 2011, 2012, 2013, 2014

2010-01-26

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. ID-6223-000] Favinger, Thomas; Notice of Filing January 19, 2010. Take notice that on January 15, 2010, Mr. Thomas G. Favinger filed an application for authority to hold interlocking positions, pursuant to section 305(b) of the...

Vivien Thomas (1910-1985): the backstage pioneer and educator.

PubMed

Ng, Chin Ting Justin

2014-06-01

Vivien Thomas (1910-1985) was an African-American scientist, pioneer, and renowned educator. Thomas's contributions to cardiovascular surgery were unequivocal, and yet it was only after his death that he gained more widespread recognition. Thomas's more notable work involves aiding in the discovery of the cause of traumatic shock, designing and guiding the first operation to treat Tetralogy of Fallot, carrying out the first atrial septectomy, and helping develop the electrical defibrillator. Thomas struggled amidst the adversities of racism and the Great Depression (1929-1941), armed merely with a high school degree. Nevertheless, his genius and determination eventually led him to receive an honorary doctorate from John Hopkins University. His story inspired the creation of the award winning PBS documentary in 2003 Partners of the Heart and also the 2004 Emmy Award-winning HBO film Something the Lord Made. This article will aim to provide an overview to the more notable events in Thomas's amazing tale, with a particular focus on his work on the Tetralogy of Fallot.

Q & A with Ed Tech Leaders: Interview with Curtis J. Bonk, Mimi Miyoung Lee, Thomas C. Reeves, & Thomas H. Reynolds

ERIC Educational Resources Information Center

Viner, Mark; Gardner, Ellen; Shaughnessy, Michael F.

2016-01-01

Curtis J. Bonk, is Professor of Instructional Systems Technology at Indiana University and President of CourseShare. Mimi Miyoung Lee is Associate Professor in the Department of Curriculum and instruction at the University of Houston. Thomas C. Reeves is Professor Emeritus of Learning, Design, and Technology at the University of Georgia. Thomas H.…

Thomas Gordon's Communicative Pedagogy in Modern Educational Realities

ERIC Educational Resources Information Center

Leshchenko, Maria; Isaieva, Svitlana

2014-01-01

In the article the principles, strategies, methods, techniques of communicative pedagogy of American scientist Thomas Gordon and system components of effective communication training for parents, teachers and administrators are enlightened. It has been determined that the main principle of Thomas Gordon's pedagogy is an interactive way of knowing…

Thomas precession, Wigner rotations and gauge transformations

NASA Technical Reports Server (NTRS)

Han, D.; Kim, Y. S.; Son, D.

1987-01-01

The exact Lorentz kinematics of the Thomas precession is discussed in terms of Wigner's O(3)-like little group which describes rotations in the Lorentz frame in which the particle is at rest. A Lorentz-covariant form for the Thomas factor is derived. It is shown that this factor is a Lorentz-boosted rotation matrix, which becomes a gauge transformation in the infinite-momentum or zero-mass limit.

A gift from Oxford: the Osler-Thomas connection

PubMed Central

2012-01-01

In June 1926, Dr. Henry M. Thomas Jr. (“Hal”) received as a gift from Grace Osler in Oxford an Einhorn Duodenal Bucket Set that had belonged to Sir William Osler. The Thomases were a distinguished multigenerational physician family of Baltimore with high educational standards and major accomplishments in medicine and medical education. An extraordinary number of the Thomas women earned doctorates and made significant contributions in an era when this was a pioneering achievement. This is exemplified by Martha Carey Thomas, who earned a PhD in 1882 and served as dean and president of Bryn Mawr College for women. As a leading feminist and member of the Women's Fund Committee, she was a major force in providing the endowment that permitted the opening of the Johns Hopkins School of Medicine under the strict stipulations that admission requirements include an undergraduate degree and that women be admitted on the basis of total equality with men. Osler established relationships that extended over three generations of the Thomas family during his Baltimore tenure, an influence that proved mutually beneficial. PMID:23077379

Dr. Thomas Zurbuchen Visits SSPF

NASA Image and Video Library

2016-11-18

Thomas Zurbuchen, in plaid shirt, NASA's associate administrator for the Science Mission Directorate, listens to a presentation at the Space Station Processing Facility at NASA's Kennedy Space Center in Florida.

75 FR 68350 - Fischer, Thomas J.; Notice of Filing

Federal Register 2010, 2011, 2012, 2013, 2014

2010-11-05

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. ID-6422-000] Fischer, Thomas J.; Notice of Filing October 29, 2010. Take notice that on October 29, 2010, Thomas J. Fischer filed an Application for Authorization to Hold Interlocking Positions as Director of Wisconsin Electric...

STS-89 Mission Specialist Andrew Thomas in White Room

NASA Technical Reports Server (NTRS)

1998-01-01

STS-89 Mission Specialist Andrew Thomas, Ph.D., is assisted with his ascent and re-entry flight suit in the white room at Launch Pad 39A before entering Space Shuttle Endeavour for launch. The STS-89 mission will be the eighth docking of the Space Shuttle with the Russian Space Station Mir. After docking, Thomas will transfer to the space station, succeeding David Wolf, M.D., who will return to Earth aboard Endeavour. Dr. Thomas will live and work on Mir until June. STS-89 is scheduled for a Jan. 22 liftoff at 9:48 p.m.

Llewellyn Hilleth Thomas: An appraisal of an under-appreciated polymath

NASA Astrophysics Data System (ADS)

Jackson, John David

2010-02-01

Llewellyn Hilleth Thomas was born in 1903 and died in 1992 at the age of 88. His name is known by most for only two things, Thomas precession and the Thomas-Fermi atom. The many other facets of his career - astrophysics, atomic and molecular physics, nonlinear problems, accelerator physics, magnetohydrodynamics, computer design principles and software and hardware - are largely unknown or forgotten. I review his whole career - his early schooling, his time at Cambridge, then Copenhagen in 1925-26, and back to Cambridge, his move to the US as an assistant professor at Ohio State University in 1929, his wartime years at the Ballistic Research Laboratory, Aberdeen Proving Grounds, then in 1946 his new career as a unique resource at IBM's Watson Scientific Computing Laboratory and Columbia University until his first retirement in 1968, and his twilight years at North Carolina State University. Although the Thomas precession and the Thomas-Fermi atom may be the jewels in his crown, his many other accomplishments add to our appreciation of this consummate applied mathematician and physicist. )

76 FR 9012 - Favinger, Thomas G.; Notice of Filing

Federal Register 2010, 2011, 2012, 2013, 2014

2011-02-16

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. ID-6223-002] Favinger, Thomas G.; Notice of Filing Take notice that on January 31, 2011 Thomas G. Favinger submitted for filing, an application for authority to hold interlocking positions, pursuant to Section 305(b) of the...

Dr. Thomas Zurbuchen Visits SSPF

NASA Image and Video Library

2016-11-18

While touring the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, Thomas Zurbuchen, in plaid shirt, NASA's associate administrator for the Science Mission Directorate, examines a device to grow plants in space.

Happy Birthday, Thomas Edison!

ERIC Educational Resources Information Center

Dalton, Edward A.

1997-01-01

Discusses the work and inventions of Thomas Edison and their use in making teachers and students aware of the importance of electrotechnology in their lives and in their futures. Enables students to learn about science, experimentation, research, the process of invention, and the thrill of discovery. Describes educational resources available from…

MS Thomas on middeck with TIPS messages

NASA Image and Video Library

2016-08-12

STS083-309-003 (4-8 April 1997) --- Astronaut Donald A. Thomas, mission specialist, checks a fresh delivery of messages from ground controllers onboard the Earth-orbiting Space Shuttle Columbia. The Thermal Impulse Imaging System (TIPS) is located on the mid deck of Columbia. Thomas, along with four other NASA astronauts and two payload specialists supporting the Microgravity Sciences Laboratory (MSL-1) mission were less than a fourth of the way through a scheduled 16-day flight when a power problem cut short their planned stay.

Iron status determination in pregnancy using the Thomas plot.

PubMed

Weyers, R; Coetzee, M J; Nel, M

2016-04-01

Physiological changes during pregnancy affect routine tests for iron deficiency. The reticulocyte haemoglobin equivalent (RET-He) and serum-soluble transferrin receptor (sTfR) assay are newer diagnostic parameters for the detection of iron deficiency, combined in the Thomas diagnostic plot. We used this plot to determine the iron status of pregnant women presenting for their first visit to an antenatal clinic in Bloemfontein, South Africa. Routine laboratory tests (serum ferritin, full blood count and C-reactive protein) and RET-He and sTfR were performed. The iron status was determined using the Thomas plot. For this study, 103 pregnant women were recruited. According to the Thomas plot, 72.8% of the participants had normal iron stores and erythropoiesis. Iron-deficient erythropoiesis was detected in 12.6%. A third of participants were anaemic. Serum ferritin showed excellent sensitivity but poor specificity for detecting depleted iron stores. HIV status had no influence on the iron status of the participants. Our findings reiterate that causes other than iron deficiency should be considered in anaemic individuals. When compared with the Thomas plot, a low serum ferritin is a sensitive but nonspecific indicator of iron deficiency. The Thomas plot may provide useful information to identify pregnant individuals in whom haematologic parameters indicate limited iron availability for erythropoiesis. © 2015 John Wiley & Sons Ltd.

3. Historic American Buildings Survey, Thomas T. Waterman, Photographer March, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

3. Historic American Buildings Survey, Thomas T. Waterman, Photographer March, 1936 NORTH ELEVATION. 4. Historic American Buildings Survey, Thomas T. Waterman, Photographer March, 1936 EAST ELEVATION. - Paul Hamilton House (Ruins), Russell Creek, Edisto Island, Charleston County, SC

Matrix models and stochastic growth in Donaldson-Thomas theory

DOE Office of Scientific and Technical Information (OSTI.GOV)

Szabo, Richard J.; Tierz, Miguel; Departamento de Analisis Matematico, Facultad de Ciencias Matematicas, Universidad Complutense de Madrid, Plaza de Ciencias 3, 28040 Madrid

We show that the partition functions which enumerate Donaldson-Thomas invariants of local toric Calabi-Yau threefolds without compact divisors can be expressed in terms of specializations of the Schur measure. We also discuss the relevance of the Hall-Littlewood and Jack measures in the context of BPS state counting and study the partition functions at arbitrary points of the Kaehler moduli space. This rewriting in terms of symmetric functions leads to a unitary one-matrix model representation for Donaldson-Thomas theory. We describe explicitly how this result is related to the unitary matrix model description of Chern-Simons gauge theory. This representation is used tomore » show that the generating functions for Donaldson-Thomas invariants are related to tau-functions of the integrable Toda and Toeplitz lattice hierarchies. The matrix model also leads to an interpretation of Donaldson-Thomas theory in terms of non-intersecting paths in the lock-step model of vicious walkers. We further show that these generating functions can be interpreted as normalization constants of a corner growth/last-passage stochastic model.« less

33 CFR 165.762 - Security Zone; St. Thomas, U.S. Virgin Islands.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Security Zone; St. Thomas, U.S....762 Security Zone; St. Thomas, U.S. Virgin Islands. (a) Location. Moving and fixed security zones are established 50 yards around all cruise ships entering, departing, moored or anchored in the Port of St. Thomas...

Dr. Thomas Zurbuchen Visits SSPF

NASA Image and Video Library

2016-11-18

While touring the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, Thomas Zurbuchen, in plaid shirt, NASA's associate administrator for the Science Mission Directorate, learns about the advanced plant habitat used to grow plants in space.

Thomas Kuhn's Influence on Astronomers.

ERIC Educational Resources Information Center

Shipman, Harry L.

2000-01-01

Surveys the astronomical community on their familiarity with the work of Thomas Kuhn. Finds that for some astronomers, Kuhn's thought resonated well with their picture of how science is done and provided perspectives on their scientific careers. (Author/CCM)

Generalized Thomas-Fermi equations as the Lampariello class of Emden-Fowler equations

NASA Astrophysics Data System (ADS)

Rosu, Haret C.; Mancas, Stefan C.

2017-04-01

A one-parameter family of Emden-Fowler equations defined by Lampariello's parameter p which, upon using Thomas-Fermi boundary conditions, turns into a set of generalized Thomas-Fermi equations comprising the standard Thomas-Fermi equation for p = 1 is studied in this paper. The entire family is shown to be non integrable by reduction to the corresponding Abel equations whose invariants do not satisfy a known integrability condition. We also discuss the equivalent dynamical system of equations for the standard Thomas-Fermi equation and perform its phase-plane analysis. The results of the latter analysis are similar for the whole class.

Public health assessment for Tutu Wellfield, St. Thomas, St. Thomas County, Virgin Islands. Cerclis No. VID982272569. Final report

DOE Office of Scientific and Technical Information (OSTI.GOV)

NONE

1996-05-14

The Tutu Wellfield National Priorities List (NPL) site is in east-central St. Thomas, U.S. Virgin Island. Twenty-two wells in the Turpentine Run Basin contain at minimum a trace of volatile organic contaminants. Volatile and chlorinated hydrocarbons including benzene; toluene; 1,2-trans-dichloroethene (DCE); trichloroethene (TCE); and tetrachloroethene (PCE) were detected in several of the wells. The Agency for Toxic Substances and Disease Registry (ATSDR) has concluded that the Tutu Wellfield National Priorities List (NPL) site, St. Thomas, U.S. Virgin Islands, poses a public health hazard for past, present, and possible future ingestion of contaminated groundwater.

Generalized Thomas-Reiche-Kuhn sum rule

NASA Astrophysics Data System (ADS)

Zhou, Bing-Lu; Zhu, Jiong-Ming; Yan, Zong-Chao

2006-01-01

The generalized Thomas-Reiche-Kuhn sum rule is established for any Coulombic system with arbitrary masses and charges of its constituent particles. Numerical examples are given for the hydrogen molecular ions.

1990 astronaut candidate Thomas prepares bedding during wilderness training

NASA Technical Reports Server (NTRS)

1990-01-01

Under a camouflage tarp, Donald A. Thomas assembles small pieces of wood for bedding during a wilderness survival training course at Fairchild Air Force Base in the state of Washington. Thomas, one of 23 1990 Group 13 astronaut candidates, participated in the training near Spokane, Washington, 08-26-90 through 08-30-90. The survival exercise is part of a year's evaluation and training program.

Nonextensive Thomas-Fermi model

NASA Astrophysics Data System (ADS)

Shivamoggi, Bhimsen; Martinenko, Evgeny

2007-11-01

Nonextensive Thomas-Fermi model was father investigated in the following directions: Heavy atom in strong magnetic field. following Shivamoggi work on the extension of Kadomtsev equation we applied nonextensive formalism to father generalize TF model for the very strong magnetic fields (of order 10e12 G). The generalized TF equation and the binding energy of atom were calculated which contain a new nonextensive term dominating the classical one. The binding energy of a heavy atom was also evaluated. Thomas-Fermi equations in N dimensions which is technically the same as in Shivamoggi (1998) ,but behavior is different and in interesting 2 D case nonextesivity prevents from becoming linear ODE as in classical case. Effect of nonextensivity on dielectrical screening reveals itself in the reduction of the envelope radius. It was shown that nonextesivity in each case is responsible for new term dominating classical thermal correction term by order of magnitude, which is vanishing in a limit q->1. Therefore it appears that nonextensive term is ubiquitous for a wide range of systems and father work is needed to understand the origin of it.

William Osler and Seymour Thomas, “the boy artist of Texas”

PubMed Central

2016-01-01

Critics consider the 1908–1909 portrait of William Osler by S. Seymour Thomas the best of six oil-on-canvas portraits of Osler done from life, including those by the more acclaimed US artists John Singer Sargent and William Merritt Chase. Osler called it “the best pictorial diagnosis I have ever seen” and told Thomas “I am at your service.” A reappraisal of Seymour Thomas explains why his portrait makes us feel much as the artist did in Osler's presence, which is the original English-language definition of “empathy.” Thomas told his subject that “I feel that you can look clear through me and see the wall on the other side.” The intensity of Osler's gaze affects us similarly. The portrait satisfied Osler, but his wife, Grace Revere Osler, never warmed to it, perhaps because it depicts so clearly a highly focused, agenda-driven man. Helen Thomas used the portrait to promote her husband's business, and, after a tortuous history, the portrait eventually returned to Oxford University, where it now hangs inconspicuously in the Radcliffe Science Library. PMID:27365894

STS-89 M.S. Andrew Thomas, Ph.D., participates in TCDT

NASA Technical Reports Server (NTRS)

1998-01-01

STS-89 Mission Specialist Andrew Thomas, Ph.D. gets ready to drive an M-113 armored personnel carrier as part of Terminal Countdown Demonstration Test (TCDT) activities. The TCDT is held at KSC prior to each Space Shuttle flight to provide crews with an opportunity to participate in simulated countdown activities. Standing inside the M-113 is Dr. Thomas while George Hoggard, a training officer with KSC Fire Services, sits atop the vehicle. The STS-89 mission will be the eighth docking of the Space Shuttle with the Russian Space Station Mir. After docking, Dr. Thomas will transfer to the space station, succeeding David Wolf, M.D., who will return to Earth aboard Endeavour. Dr. Thomas will live and work on Mir until June. STS-89 is scheduled for a Jan. 22 liftoff at 9:48 p.m.

Public Financing of Religious Schools: Justice Clarence Thomas's "Bigotry Thesis"

ERIC Educational Resources Information Center

Alexander, Kern

2008-01-01

United States Supreme Court Justice Clarence Thomas, writing for a plurality of the Court in "Mitchell v. Helms" in 2000, advanced the idea that state constitutional prohibitions against public funding of religious schools were manifestations of anti-Catholic bigotry in the late 19th century. Thomas's reading of history and law led him to believe…

Student Rights, Clarence Thomas, and the Revolutionary Vision of Education

ERIC Educational Resources Information Center

Warnick, Bryan R.; Rowe, Bradley; Kim, Sang Hyun

2009-01-01

In his concurring opinion to the 2007 U.S. Supreme Court decision, "Morse v. Frederick," Justice Clarence Thomas argues that the "Tinker" decision, which granted students constitutional rights in public schools, should be overturned on originalist grounds. In this essay, Bryan Warnick, Bradley Rowe, and Sang Hyun Kim make the case that Thomas's…

Candid views of Thomas and Garneau in Spacehab

NASA Image and Video Library

1996-06-21

STS077-368-026 (19-29 May 1996) --- On his off-duty time, Australian-native Andrew S. W. Thomas, mission specialist, has a little fun with Australian mementos in the Spacehab Module onboard the Space Shuttle Endeavour. Floating in the foreground are a stuffed toy kangaroo and a miniaturized typical highway warning sign about the plentiful four-legged Australian resident. Astronaut Thomas and five other crew members went on to spend almost ten-days aboard Endeavour in support of the Spacehab 4 mission and a number of other payloads.

Navy/Thomas Nelson Community College MLT Training Pilot Evaluation

DTIC Science & Technology

2002-06-01

4825 Mark Center Drive • Alexandria, Virginia 22311-1850 CAB D0006007.A2/Final June 2002 Navy/Thomas Nelson Community College MLT Training Pilot...Navy/Thomas Nelson Community College MLT Training Pilot Evaluation 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d...ES) 10. SPONSOR/MONITOR’S ACRONYM(S) 11. SPONSOR/MONITOR’S REPORT NUMBER(S) 12 . DISTRIBUTION/AVAILABILITY STATEMENT Approved for public release

Jim Thomas, 1946-2010

DOE Office of Scientific and Technical Information (OSTI.GOV)

Stone, Maureen; Kasik, David; Bailey, Mike

Jim Thomas, a visionary scientist and inspirational leader, died on 6 August 2010 in Richland, Washington. His impact on the fields of computer graphics, user interface software, and visualization was extraordinary, his ability to personally change people’s lives even more so. He is remembered for his enthusiasm, his mentorship, his generosity, and, most of all, his laughter. This collection of remembrances images him through the eyes of his many friends.

Dr. Thomas Zurbuchen Visits Swamp Works

NASA Image and Video Library

2016-11-18

Thomas Zurbuchen, in plaid shirt, NASA's associate administrator for the Science Mission Directorate, listens to a presentation at the Swamp Works facility at NASA's Kennedy Space Center in Florida. In the foreground is a prototype robotic exploration vehicle.

Thomas Kuhn, Scientism, and English Studies.

ERIC Educational Resources Information Center

Bizzell, Patricia

1979-01-01

Analyzes passages of Thomas Kuhn's "The Structure of Scientific Revolutions" in support of the plea that English teachers work toward a new paradigm which allows the examination of the ways language sharpens and directs critical analyses of the historical situation. (DD)

Thomas Paine: Eighteenth Century Feminist

ERIC Educational Resources Information Center

Harbison, John L.

1978-01-01

Unlike Franklin, Jefferson, and Adams, Thomas Paine was a feminist, a revolutionary in his time for the cause of women's rights and their liberation from servility. While others considered women second-class citizens whose only place was in the home. Paine argued for the political, legal, economic, and social rights of women. (Author/BC)

33 CFR 110.250 - St. Thomas Harbor, Charlotte Amalie, V.I.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false St. Thomas Harbor, Charlotte... SECURITY ANCHORAGES ANCHORAGE REGULATIONS Anchorage Grounds § 110.250 St. Thomas Harbor, Charlotte Amalie... move promptly upon notification by the Harbor Master. (4) The harbor regulations for the Port of St...

Importance of Thomas single-electron transfer in fast p-He collisions

DOE Office of Scientific and Technical Information (OSTI.GOV)

Fischer, D.; Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1 D-69126; Gudmundsson, M.

We report experimental angular differential cross sections for nonradiative single-electron capture in p-He collisions (p+ He -> H + He{sup +}) with a separate peak at the 0.47 mrad Thomas scattering angle for energies in the 1.3-12.5 MeV range. We find that the intensity of this peak scales with the projectile velocity as v{sub P}{sup -11}. This constitutes the first experimental test of the prediction from 1927 by L. H. Thomas [Proc. R. Soc. 114, 561 (1927)]. At our highest energy, the peak at the Thomas angle contributes with 13.5% to the total integrated nonradiative single-electron capture cross section.

Relativistic extended Thomas-Fermi calculations with exchange term contributions

NASA Astrophysics Data System (ADS)

Haddad, S.; Weigel, M. K.

1994-10-01

In this investigation we present self-consistent relativistic extended Thomas-Fermi (ETF) and extended Thomas-Fermi-Fock (ETFF) approaches, derived from the semiclassical treatment of the relativistic nuclear Hartree-Fock problem. The approximations are used to describe the ground-state properties of finite nuclei. The resulting equations are solved numerically for several one-boson-exchange (OBE) lagrangians. The results are discussed and compared with the outcome of full quantal Hartree and Hartree-Fock calculations, other semiclassical treatments and experimental data.

Astronaut Thomas Stafford and Snoopy

NASA Technical Reports Server (NTRS)

1969-01-01

Astronaut Thomas P. Stafford, commander of the Apollo 10 lunar orbit mission, takes time out from his preflight training activities to have his picture made with Snoopy, the character from Charles Schulz's syndicated comic strip, 'Peanuts'. During the Apollo 10 lunar orbit operations the Lunar Module will be called Snoopy when it is separated from the Command/Service Modules.

Practicing like Thomas Edison.

PubMed

Baum, Neil; Ornstein, Hal

2013-01-01

For many centuries, medicine has practiced in a vacuum, and the healthcare profession has been isolated from other scientific disciplines. Beginning in the 20th century, doctors and scientists have looked to others for ideas, suggestions, innovations, and new technologies. Probably no one in the past hundred years has done so much to change the world than Thomas Edison. This article will discuss eight principles of Edison and how they may apply to our profession and our practices.

78 FR 19632 - Special Local Regulations; St. Thomas Carnival Watersport Activities, Charlotte Amalie Harbor; St...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-04-02

...-AA08 Special Local Regulations; St. Thomas Carnival Watersport Activities, Charlotte Amalie Harbor; St... proposes to establish a special local regulation on the waters of Charlotte Amalie Harbor in St Thomas, USVI during the St. Thomas Carnival Watersport Activities, a high speed boat race. The event is...

STS-89 M.S. Andrew Thomas, Ph.D., participates in TCDT

NASA Technical Reports Server (NTRS)

1998-01-01

STS-89 Mission Specialist Andrew Thomas, Ph.D., participates in a question and answer session for the media as part of Terminal Countdown Demonstration Test (TCDT) activities. The TCDT is held at KSC prior to each Space Shuttle flight to provide crews with an opportunity to participate in simulated countdown activities. The STS-89 mission will be the eighth docking of the Space Shuttle with the Russian Space Station Mir. After docking, Dr. Thomas will transfer to the space station, succeeding David Wolf, M.D., who will return to Earth aboard Endeavour. Dr. Thomas will live and work on Mir until June. STS-89 is scheduled for a Jan. 22 liftoff at 9:48 p.m.

STS-89 M.S. Andrew Thomas, poses the day before launch

NASA Technical Reports Server (NTRS)

1998-01-01

STS-89 Mission Specialist Andrew Thomas, Ph.D., poses at KSC's Launch Pad 39A wearing a miniature koala bear on the day before the scheduled launch of Space Shuttle Endeavour that will carry him up to the Russian Space Station Mir. Final preparations are under way toward liftoff on Jan. 22 on the eighth mission to dock with Mir. After docking, Dr. Thomas will transfer to the space station, succeeding David Wolf, M.D., who will return to Earth aboard Endeavour. Dr. Thomas, who was born and educated in South Australia, will live and work on Mir until June. STS-89 is scheduled for liftoff at 9:48 p.m. EST.

Thomas Harriot: the first telescopic astronomer

NASA Astrophysics Data System (ADS)

Chapman, A.

2008-12-01

I am going to devote the 2007 Christmas Lecture to Thomas Harriot. I think it is appropriate to do so because next year, 2008, will be the 400th anniversary of the invention of the telescope, by Hans Lippershey, Zacharias Jannsen, and perhaps other Dutchmen. And although the principles of the instrument were first made public in 1608, it was at least eight months before anybody recognised that it possessed any scientific potential. For at first, the telescope was used as a military or naval device, or regarded purely as a novelty. As far as we can tell from the historical record, however, it was Thomas Harriot who became the first person to look at an astronomical body through a telescope, on or before 1609 July 26, when he came to realise that the image of the Moon produced by it was very different from what was seen by the naked eye, although he did not publish his discovery.

CM-1 - MS Thomas and PS Linteris in Spacelab

NASA Image and Video Library

2012-09-18

STS083-302-005 (4-8 April 1997) --- Payload specialist Gregory T. Linteris enters data on the progress of a Microgravity Sciences Laboratory (MSL-1) experiment on a lap top computer aboard the Spacelab Science Module while astronaut Donald A. Thomas, mission specialist, checks an experiment in the background. Linteris and Thomas, along with four other NASA astronauts and a second payload specialist supporting the Microgravity Sciences Laboratory (MSL-1) mission were less than a fourth of the way through a scheduled 16-day flight when a power problem cut short their planned stay.

Cholera in Thomas Mann's Death in Venice.

PubMed

Rütten, Thomas

2009-01-01

The article sets the cholera motif in Thomas Mann's famous novella Death in Venice against the historical context from which it partially originates. It is shown that this motif, while undoubtedly appropriated to serve Mann's own poetic ends, has a solid grounding in historical and autobiographical fact, thus blurring the boundaries between fact and fiction. The article illustrates the verifiable events of the outbreak of the Venetian cholera epidemic in May 1911, which Mann partly witnessed himself, during a holiday trip to Brioni and Venice, and partly heard and read about. It is established that Thomas Mann's account of the cholera in Venice in his novella is characterised by a rare and almost preternatural insightfulness into an otherwise murky affair that was marked by rumours, speculations and denials.

Thomas Clifford Allbutt and Comparative Pathology

ERIC Educational Resources Information Center

Leung, Danny C. K.

2008-01-01

This paper reconceptualizes Thomas Clifford Allbutt's contributions to the making of scientific medicine in late nineteenth-century England. Existing literature on Allbutt usually describes his achievements, such as his design of the pocket thermometer and his advocacy of the use of the ophthalmoscope in general medicine, as independent events;…

Thomas Jefferson and the Purposes of Education.

ERIC Educational Resources Information Center

Jewett, Thomas O.

1997-01-01

Thomas Jefferson was the first conspicuous U.S. advocate of free education supported by local taxation and of state aid to higher education. He believed that only an educated citizenry could assume the responsibilities of self-government. (SK)

33 CFR 165.762 - Security Zone; St. Thomas, U.S. Virgin Islands.

Code of Federal Regulations, 2014 CFR

2014-07-01

....762 Security Zone; St. Thomas, U.S. Virgin Islands. (a) Location. Moving and fixed security zones are established 50 yards around all cruise ships entering, departing, moored or anchored in the Port of St. Thomas, U.S. Virgin Islands. The security zone for a cruise ship entering port is activated when the vessel...

33 CFR 165.762 - Security Zone; St. Thomas, U.S. Virgin Islands.

Code of Federal Regulations, 2012 CFR

2012-07-01

....762 Security Zone; St. Thomas, U.S. Virgin Islands. (a) Location. Moving and fixed security zones are established 50 yards around all cruise ships entering, departing, moored or anchored in the Port of St. Thomas, U.S. Virgin Islands. The security zone for a cruise ship entering port is activated when the vessel...

33 CFR 165.762 - Security Zone; St. Thomas, U.S. Virgin Islands.

Code of Federal Regulations, 2011 CFR

2011-07-01

....762 Security Zone; St. Thomas, U.S. Virgin Islands. (a) Location. Moving and fixed security zones are established 50 yards around all cruise ships entering, departing, moored or anchored in the Port of St. Thomas, U.S. Virgin Islands. The security zone for a cruise ship entering port is activated when the vessel...

33 CFR 165.762 - Security Zone; St. Thomas, U.S. Virgin Islands.

Code of Federal Regulations, 2013 CFR

2013-07-01

....762 Security Zone; St. Thomas, U.S. Virgin Islands. (a) Location. Moving and fixed security zones are established 50 yards around all cruise ships entering, departing, moored or anchored in the Port of St. Thomas, U.S. Virgin Islands. The security zone for a cruise ship entering port is activated when the vessel...

The Thomas A. Edison Papers at Rutgers University

Science.gov Websites

Contact Us Research Digital Edition Microfilm Edition Book Edition Motion Picture Catalogs Document Microfilm Edition Book Edition Motion Picture Catalogs Document Sampler Thomas Edison's Life Biography

STS-89 M.S. Andrew Thomas suits up

NASA Technical Reports Server (NTRS)

1998-01-01

STS-89 Mission Specialist Andrew Thomas, Ph.D., gives a 'thumbs up' as he completes the donning of his launch/entry suit in the Operations and Checkout (O&C) Building. In June 1995, he was named as payload commander for STS-77 and flew his first flight in space on Endeavour in May 1996. He and six fellow crew members will soon depart the O&C and head for Launch Pad 39A, where the Space Shuttle Endeavour will lift off during a launch window that opens at 9:43 p.m. EST, Jan. 22. STS-89 is the eighth of nine planned missions to dock the Space Shuttle with Russia's Mir space station, where Dr. Thomas will succeed David Wolf, M.D.

New Jersey's Thomas Edison and the fluoroscope.

PubMed

Tselos, G D

1995-11-01

Thomas Edison played a major role in the development of early x-ray technology in 1896, notably increasing tube power and reliability and making the fluoroscope a practical instrument. Eventually, Edison would move x-ray technology from the laboratory to the marketplace.

Contamination Assessment Report Chemical Sewers - North Plants and South Plants Version 3.2, Task 10

DTIC Science & Technology

1988-09-01

co coo coo U.A 0 0 0.0 L Vc 04 a 0. C -. C r 0 48 w c 0j ft 1-4 0~ W UU 4e & 0 0 0 0 0 0 0 0 0- 1 I I C 1 W; V; W ; ’A C 209 0 0 U u et M SC A 04 4124 ...David Shelton, CDB Lt. Col. Scott P. Isaacson Chris Hahn, Shell Oil Company R. D. Lundahl, Shell Oil Company Thomas Sick, Department of Justice David

Thomas precession and squeezed states of light

NASA Technical Reports Server (NTRS)

Han, D.; Hardekopf, E. E.; Kim, Y. S.

1989-01-01

The Lorentz group, which is the language of special relativity, is a useful theoretical toll in modern optics. Optics experiments can therefore serve as analog computers for special relativity. Possible optics experiments involving squeezed states are discussed in connection with the Thomas precession and the Wigner rotation.

Instantons, quivers and noncommutative Donaldson-Thomas theory

NASA Astrophysics Data System (ADS)

Cirafici, Michele; Sinkovics, Annamaria; Szabo, Richard J.

2011-12-01

We construct noncommutative Donaldson-Thomas invariants associated with abelian orbifold singularities by analyzing the instanton contributions to a six-dimensional topological gauge theory. The noncommutative deformation of this gauge theory localizes on noncommutative instantons which can be classified in terms of three-dimensional Young diagrams with a colouring of boxes according to the orbifold group. We construct a moduli space for these gauge field configurations which allows us to compute its virtual numbers via the counting of representations of a quiver with relations. The quiver encodes the instanton dynamics of the noncommutative gauge theory, and is associated to the geometry of the singularity via the generalized McKay correspondence. The index of BPS states which compute the noncommutative Donaldson-Thomas invariants is realized via topological quantum mechanics based on the quiver data. We illustrate these constructions with several explicit examples, involving also higher rank Coulomb branch invariants and geometries with compact divisors, and connect our approach with other ones in the literature.

WALK UP RAMP - ASTRONAUT THOMAS P. STAFFORD - MISC.

NASA Image and Video Library

1966-06-03

S66-32149 (3 June 1966) --- Astronauts Thomas P. Stafford (foreground), command pilot, and Eugene A. Cernan, pilot, walk up the ramp at Pad 19 during the Gemini-9A prelaunch countdown. Photo credit: NASA

Memory, Cognitive Processing, and the Process of "Listening": A Reply to Thomas and Levine.

ERIC Educational Resources Information Center

Bostrom, Robert N.

1996-01-01

Describes several "inaccurate" statements made in L. Thomas' and T. Levine's article in this journal (volume 21, page 103) regarding the current author's research and positions on the listening construct. Suggests that Thomas' and Levine's model has serious methodological flaws. (RS)

Thomas Gainsborough's doctors.

PubMed

Jenkins, John

2005-02-01

During the 16 years Thomas Gainsborough (1727-88) lived in Bath he was especially friendly with two eminent physicians, Rice Charleton (1723-88) and Abel Moysey (1715-80). They both treated Gainsborough for a severe nervous illness. In return he painted portraits of them without charge. Gainsborough's two daughters were both mentally unstable and when the elder one became very ill he had to call for the services of a third Bath physician, Dr Ralph Schomberg (1714-92), who was also the subject of a fine portrait. In the final phase of his life Gainsborough moved to London, where he suffered his fatal illness, possibly squamous cell carcinoma. For this he was treated by William Heberden (1710-1801) and John Hunter (1728-93).

Digges, Leonard (c 1520-c 1559) and Digges, Thomas (1545/6-95)

NASA Astrophysics Data System (ADS)

Murdin, P.

2000-11-01

Both were English astronomers, opticians and military engineers. Thomas was born in Wotton, Kent, England, and incorporated his father's work on optics and ballistics into his own publications. He was tutored by JOHN DEE. In 1573 Thomas Digges published Alae seu Scalae Mathematicae, a work on the position of the supernova of 1572, showing it had no parallax, i.e. was at a great distance, beyond t...

ASTRONAUT STAFFORD, THOMAS P. - PLAQUES - JSC

NASA Image and Video Library

1975-02-01

S75-25823 (February 1975) --- Cosmonaut Aleksei A. Leonov (left) and astronaut Thomas P. Stafford display the Apollo Soyuz Test Project (ASTP) commemorative plaque. The two commanders, of their respective crews, are in the Apollo Command Module (CM) trainer at Building 35 at NASA's Johnson Space Center (JSC). Two plaques divided into four quarters each will be flown on the ASTP mission. The American ASTP Apollo crew will carry the four United States quarter pieces aboard Apollo; and the Soviet ASTP Soyuz 19 crew will carry the four USSR quarter sections aboard Soyuz. The eight quarter pieces will be joined together to form two complete commemorative plaques after the two spacecraft rendezvous and dock in Earth orbit. One complete plaque then will be returned to Earth by the astronauts; and the other complete plaque will be brought back by the cosmonauts. The plaque is written in both English and Russian. The Apollo crew will consist of astronauts Thomas P. Stafford, commander; Donald K. "Deke" Slayton, docking module pilot; Vance D. Brand, command module pilot. The Soyuz 19 crew will consist of cosmonauts Aleksei A. Leonov, command pilot; and Valeri N. Kubasov, flight engineer.

75 FR 78335 - Culturally Significant Objects Imported for Exhibition Determinations: “Thomas Lawrence: Regency...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-12-15

... DEPARTMENT OF STATE [Public Notice 7268] Culturally Significant Objects Imported for Exhibition Determinations: ``Thomas Lawrence: Regency Power and Brilliance'' SUMMARY: Notice is hereby given of the... determine that the objects to be included in the exhibition ``Thomas Lawrence: Regency Power and Brilliance...

Relativistic equation of state at subnuclear densities in the Thomas-Fermi approximation

DOE Office of Scientific and Technical Information (OSTI.GOV)

Zhang, Z. W.; Shen, H., E-mail: shennankai@gmail.com

We study the non-uniform nuclear matter using the self-consistent Thomas-Fermi approximation with a relativistic mean-field model. The non-uniform matter is assumed to be composed of a lattice of heavy nuclei surrounded by dripped nucleons. At each temperature T, proton fraction Y{sub p} , and baryon mass density ρ {sub B}, we determine the thermodynamically favored state by minimizing the free energy with respect to the radius of the Wigner-Seitz cell, while the nucleon distribution in the cell can be determined self-consistently in the Thomas-Fermi approximation. A detailed comparison is made between the present results and previous calculations in the Thomas-Fermimore » approximation with a parameterized nucleon distribution that has been adopted in the widely used Shen equation of state.« less

MS Wolf and MS Thomas work on the Cocult experiment together

NASA Image and Video Library

2016-12-15

STS089-364-022 (22-31 Jan. 1998) --- Astronauts David A. Wolf, a new member of the STS-89 crew; and Andrew S. W. Thomas, a new member of the Mir-24 crew, check out the just-unstowed CoCult hardware, a Mir tissue experiment. Wolf will return aboard the space shuttle Endeavour after spending four months on the Russian Mir Space Station. Thomas is the final United States astronaut to serve as guest researcher aboard Mir. Photo credit: NASA

Thomas-Fermi approximation for a condensate with higher-order interactions

DOE Office of Scientific and Technical Information (OSTI.GOV)

Thoegersen, M.; Jensen, A. S.; Zinner, N. T.

We consider the ground state of a harmonically trapped Bose-Einstein condensate within the Gross-Pitaevskii theory including the effective-range corrections for a two-body zero-range potential. The resulting nonlinear Schroedinger equation is solved analytically in the Thomas-Fermi approximation neglecting the kinetic-energy term. We present results for the chemical potential and the condensate profiles, discuss boundary conditions, and compare to the usual Thomas-Fermi approach. We discuss several ways to increase the influence of effective-range corrections in experiment with magnetically tunable interactions. The level of tuning required could be inside experimental reach in the near future.

Dylan Thomas's "25 Poems": Paradox as Structure

ERIC Educational Resources Information Center

Bharadwaj, S.

2014-01-01

Irony, inclusiveness, and complexity are the chief criteria of value in the twentieth century intellectual poetry. These criteria, however, do not merely indicate qualities of craftsmanship; they reflect a sensibility, a particular way of experiencing reality. What really distinguishes Dylan Thomas is a capacity for self-analysis, a capacity for…

STS-94 Mission Specialist Thomas in LC-39A White Room

NASA Technical Reports Server (NTRS)

1997-01-01

STS-94 Mission Specialist Donald A. Thomas prepares to enter the Space Shuttle Columbia at Launch Pad 39A in preparation for launch. He has flown on STS-83, STS-70 and STS-65. He holds a doctorate in materials science and has been the Principal Investigator for a Space Shuttle crystal growth experiment. Because of his background in materials science, Thomas will be concentrating his efforts during the Red shift on the five experiments in this discipline in the Large Isothermal Furnace. He also will work on the ten materials science investigations in the Electromagnetic Containerless Processing Facility and four that will be measuring the effects of microgravity and motion in the orbiter on the experiments. Thomas and six fellow crew members will lift off during a launch window that opens at 1:50 a.m. EDT, July opportunity to lift off before Florida summer rain showers reach the space center.

A Model Technology Educator: Thomas A. Edison

ERIC Educational Resources Information Center

Pretzer, William S.; Rogers, George E.; Bush, Jeffery

2007-01-01

Reflecting back over a century ago to the small village of Menlo Park, New Jersey provides insight into a remarkable visionary and an exceptional role model for today's problem-solving and design-focused technology educator: Thomas A. Edison, inventor, innovator, and model technology educator. Since Edison could not simply apply existing knowledge…

Evolution and Education: Lessons from Thomas Huxley

ERIC Educational Resources Information Center

Lyons, Sherrie Lynne

2010-01-01

Thomas Huxley more than anyone else was responsible for disseminating Darwin's theory in the western world and maintained that investigating the history of life should be regarded as a purely scientific question free of theological speculation. The content and rhetorical strategy of Huxley's defense of evolution is analyzed. Huxley argued that the…

Thomas of Wroclaw (1297-1378) - Medieval bishop and scholar of English origin.

PubMed

Bieganowski, Lech; Grzybowski, Andrzej

2017-11-01

Peter of Tilleberi (Tilbury), later known as bishop Thomas of Wroclaw, after completing his studies (in Bologna or in Montpellier) worked as a physician in northern Italy and probably in Spain. Later through Germany and Bohemia, he came to Wroclaw in 1336 where he joined the Order of St. Dominic. In 1352, Thomas was made an auxiliary bishop of the diocese of Wroclaw. After the episcopal consecration, Thomas stopped living in the abbey, but all the time he was well known both as a priest and physician. He is known as an author of several treatises on medical sciences. His most important work entitled Michi competit (i.e. It suits me) is composed of four parts: Regimen sanitatis (i.e. Hygiene), Aggregatum (i.e. Aggregation), Antidotarium (i.e. Medicine directory) and Practica medicinalis (i.e. Medical practices). Moreover, he is the author of other treatises including, for example, De phlebotomia et de iudiciis cruoris (i.e. On phlebotomy and blood content) and De urinis (i.e. On urine). Some Polish scientists claim that bishop Thomas of Wroclaw with his knowledge and industriousness functioned as a university faculty of medicine even though the University of Cracow had not been established yet.

STS-89 Mission Specialist Andrew Thomas arrives for TCDT

NASA Technical Reports Server (NTRS)

1998-01-01

STS-89 Mission Specialist Andrew Thomas, Ph.D., poses in his T-38 jet trainer after landing with other members of the flight crew at KSCs Shuttle Landing Facility from NASAs Johnson Space Center to begin Terminal Countdown Demonstration Test (TCDT) activities. The TCDT is held at KSC prior to each Space Shuttle flight to provide crews with the opportunity to participate in simulated countdown activities. Endeavour is targeted for launch of STS-89 on Jan. 22 at 9:48 p.m. EST., which will be the first mission of 1998 and the eighth to dock with Russias Mir Space Station, where Thomas will succeed David Wolf, M.D., who has been on Mir since September 28. The STS-89 mission is scheduled to last nine days.

MGBX - MS Thomas in Spacelab

NASA Image and Video Library

2012-09-18

STS083-302-002 (4-8 April 1997) --- At the MidDeck Glove Box (MGBX), astronaut Donald A. Thomas, mission specialist, prepares to conduct the Internal Flows in Free Drops (IFFD) experiment. The IFFD is meant to study drops of several liquids, including water, water/glycerin and silicon oil. Flows within the drops and shape and stability are studied under varying acoustic pressure. The MGBX is the overall facility that holds experiments on materials that are not approved for study in the open Spacelab environment.

Thomas Piketty and the Justice of Education

ERIC Educational Resources Information Center

Bøyum, Steinar

2016-01-01

Thomas Piketty's "Capital in the Twenty-First Century" is best known for its documentation of increasing social inequality, but it also has a notable normative aspect. Although Piketty is far less clear on the normative level than on the empirical, his view of justice can be summarised as meritocratic luck egalitarianism. This leads him…

75 FR 52023 - Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-08-24

... DEPARTMENT OF THE INTERIOR National Park Service Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of Washington, Seattle, WA AGENCY: National Park Service... of the Thomas Burke Memorial Washington State Museum (Burke Museum), University of Washington...

75 FR 36671 - Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-06-28

... DEPARTMENT OF THE INTERIOR National Park Service Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of Washington, Seattle, WA; Correction AGENCY: National Park... human remains and associated funerary objects in the possession of the Thomas Burke Memorial Washington...

Overall view, looking northwest Thomas Murphy Homestead, North of ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Overall view, looking northwest - Thomas Murphy Homestead, North of John Moulton Homestead, approximately 1,000 feet west of Mormon Row Road, and .25 mile north of Antelope Flats Road, Kelly, Teton County, WY

Teaching the "Leviathan": Thomas Hobbes on Education

ERIC Educational Resources Information Center

Bejan, Teresa M.

2010-01-01

This paper considers Thomas Hobbes's educational thought both in its historical context and in the context of his political philosophy as a whole. It begins with Hobbes's diagnosis of the English Civil War as the product of the miseducation of the commonwealth and shows that education was a central and consistent concern of his political theory…

Thomas Secker M.D.: Archbishop and man-midwife.

PubMed

Morgan-Guy, John

2018-05-01

This paper provides a biographical outline of the career of Thomas Secker, MD, who from 1758-68 was Archbishop of Canterbury. Although much has been written on Secker, this study seeks to highlight his training in medicine, which has been largely overlooked hitherto by historians.

Camarada and Thomas on middeck

NASA Image and Video Library

2005-08-07

S114-E-7001 (4 August 2005) --- Astronaut Andrew S. W. Thomas, STS-114 mission specialist, photographs a middeck evaluation of the mechanical "plug" option for Reinforced Carbon-Carbon (RCC) repair aboard the Space Shuttle Discovery. Astronaut Charles J. Camarda, mission specialist, uses special pre-designated tools to accomplish the procedure, along with round thin, flexible 7-inch-diamter carbon-silicon cover plates designed to flex up to 0.25 inch to conform to the wing leading edge RCC panels, a hardware attachment mechanism similar to a toggle bolt and sealant.

Thomas and Camarda on middeck

NASA Image and Video Library

2005-08-04

S114-E-7005 (4 August 2005) --- Astronaut Andrew S. W. Thomas, STS-114 mission specialist, photographs a middeck evaluation of the mechanical "plug" option for Reinforced Carbon-Carbon (RCC) repair aboard the Space Shuttle Discovery. Astronaut Charles J. Camarda, mission specialist, uses special pre-designated tools to accomplish the procedure, along with round thin, flexible 7-inch-diamter carbon-silicon cover plates designed to flex up to 0.25 inch to conform to the wing leading edge RCC panels, a hardware attachment mechanism similar to a toggle bolt and sealant.

Overall view, looking westsouthwest Thomas Murphy Homestead, North of ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Overall view, looking west-southwest - Thomas Murphy Homestead, North of John Moulton Homestead, approximately 1,000 feet west of Mormon Row Road, and .25 mile north of Antelope Flats Road, Kelly, Teton County, WY

STS-79 Mission Specialist Thomas Akers in White Room

NASA Technical Reports Server (NTRS)

1996-01-01

STS-79 Mission Specialist Thomas D. Akers shares a light moment with white room closeout crew members Rick Welty (left) and Travis Thompson, before entering the Space Shuttle Atlantis at Launch Pad 39A.

Thomas Young's contributions to geometrical optics.

PubMed

Atchison, David A; Charman, W Neil

2011-07-01

In addition to his work on physical optics, Thomas Young (1773-1829) made several contributions to geometrical optics, most of which received little recognition in his time or since. We describe and assess some of these contributions: Young's construction (the basis for much of his geometric work), paraxial refraction equations, oblique astigmatism and field curvature, and gradient-index optics. © 2011 The Authors. Clinical and Experimental Optometry © 2011 Optometrists Association Australia.

Public Financing of Religious Schools: James G. Blaine and Justice Clarence Thomas' "Bigotry Thesis"

ERIC Educational Resources Information Center

Alexander, Kern

2007-01-01

United States Supreme Court Justice Clarence Thomas writing for a plurality of the Court in "Mitchell v. Helms" in 2000 advanced the idea that state constitutional prohibitions against public funding of religious schools were manifestations of anti-Catholic bigotry in the late 19th century. Thomas' reading of history and law led him to…

78 FR 59955 - Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-09-30

... DEPARTMENT OF THE INTERIOR National Park Service [NPS-WASO-NAGPRA-13881; PPWOCRADN0-PCU00RP14.R50000] Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of.... SUMMARY: The Thomas Burke Memorial Washington State Museum, University of Washington (Burke Museum), has...

Astronaut Thomas Jones opens food package on middeck

NASA Image and Video Library

1994-04-10

STS059-14-004 (9-20 April 1994) --- On the Space Shuttle Endeavour's middeck astronaut Thomas D. Jones, mission specialist, cuts open a package of food as he prepares for mealtime. Jones was joined by five other NASA astronauts aboard Endeavour for the STS-59 mission.

Thomas Paine's "Common Sense": A Study in Polarity.

ERIC Educational Resources Information Center

Blair, Carole

Thomas Paine's "Common Sense," published in 1776, was a significant rhetorical event, having a polarizing effect on a situation marked by confusion and conflicting loyalties, in which prevailing views favored reconciliation of the American colonies with England. Paine's rhetoric intensified the conflict, forcing a cognitive restructuring…

Overall view with ditch lateral, looking north Thomas Murphy ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Overall view with ditch lateral, looking north - Thomas Murphy Homestead, North of John Moulton Homestead, approximately 1,000 feet west of Mormon Row Road, and .25 mile north of Antelope Flats Road, Kelly, Teton County, WY

1. Historic American Buildings Survey, Thomas T. Waterman, Photographer June, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

1. Historic American Buildings Survey, Thomas T. Waterman, Photographer June, 1939 SLAVE QUARTERS. - I. Jenkins Mikell House, Servants' Quarters, Rutledge Avenue & Montague Street, Charleston, Charleston County, SC

PARASAIL TRAINING - ASTRONAUT THOMAS P. STAFFORD - GALVESTON BAY, TX

NASA Image and Video Library

1965-08-23

S65-51958 (23 Aug. 1965) --- Astronaut Thomas P. Stafford, Gemini-6 prime crew pilot, sails over Galveston Bay during parasail training. His water survival gear hangs below him. Photo credit: NASA or National Aeronautics and Space Administration

Apollo 13 Astronaut Thomas Mattingly during water egress training

NASA Image and Video Library

1970-01-17

S70-24016 (17 Jan. 1970) --- Astronaut Thomas K. Mattingly II, command module pilot of the Apollo 13 lunar landing mission, participates in water egress training in a water tank in Building 260 at the Manned Spacecraft Center.

Thomas Linacre at the University of Padua.

PubMed

Porzionato, Andrea; Macchi, Veronica; De Caro, Raffaele

2010-11-01

The Bo (meaning 'ox' in the Venetian dialect) is the historic seat of the University of Padua, founded in 1222. A full-length portrait of Thomas Linacre stands in its prestigious Sala dei Quaranta (Hall of the Forty), so called because of the portraits of forty great foreign scholars of the University, painted by Giacomo dal Forno in 1942. Thomas Linacre came to Italy in 1485, following an embassy by Henry VII to the Vatican. Linacre visited Bologna, Florence, Rome, Venice, Vicenza and Padua, where he took his degree in medicine in 1496 with great distinction. During his stay in Italy he met illustrious humanists and physicians, including Poliziano, Hermolaus Barbarus and Aldus Manutius Romanus, and Nicolaus Leonicenus who further stimulated him to the translation of classic works by Hippocrates and Galen. In 1518 Linacre played a pivotal role in the foundation of the Royal College of Physicians in London which, as first President, he organized on the basis of Italian models. With his portrait, the University of Padua celebrates the life and work of an astonishing figure linking the Italian and English medical cultures.

13. GENERAL VIEW IN HOUSE LOUNGE; THOMAS HART BENTON MURALS ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

13. GENERAL VIEW IN HOUSE LOUNGE; THOMAS HART BENTON MURALS DEPICT SOCIAL HISTORY OF MISSOURI - Missouri State Capitol, High Street between Broadway & Jefferson Streets, Jefferson City, Cole County, MO

STS-89 M.S. Sharipov, his wife, and M.S. Thomas, at the SLF

NASA Technical Reports Server (NTRS)

1998-01-01

STS-89 Mission Specialist Salizhan Sharipov of the Russian Space Agency, at left, poses with his wife, Nadezhda Sharipova, and Mission Specialist Andrew Thomas, Ph.D., at right, shortly after arrival at the KSC Shuttle Landing Facility. The eight STS-89 crew members flew into KSC from Johnson Space Center as final preparations are under way toward the scheduled liftoff on Jan. 22 of the Space Shuttle Endeavour on the eighth mission to dock with the Russian Space Station Mir. After docking, Dr. Thomas will transfer to the space station, succeeding David Wolf, M.D., who will return to Earth aboard Endeavour. Dr. Thomas will live and work on Mir until June. STS-89 is scheduled for a Jan. 22 liftoff at 9:48 p.m. EST.

The Sovereign as Educator: Thomas Hobbes's National Curriculum.

ERIC Educational Resources Information Center

Parry, Geraint

1998-01-01

Focuses on Thomas Hobbes, an English political philosopher who argued that the solution to civil disorders lay in a sovereign authority backed with force. Argues that education should be seen at the center of Hobbes's project of rescuing society from the disorders threatening civilization throughout 17th-century Europe. (CMK)

Thermodynamics of Thomas-Fermi screened Coulomb systems

NASA Technical Reports Server (NTRS)

Firey, B.; Ashcroft, N. W.

1977-01-01

We obtain in closed analytic form, estimates for the thermodynamic properties of classical fluids with pair potentials of Yukawa type, with special reference to dense fully ionized plasmas with Thomas-Fermi or Debye-Hueckel screening. We further generalize the hard-sphere perturbative approach used for similarly screened two-component mixtures, and demonstrate phase separation in this simple model of a liquid mixture of metallic helium and hydrogen.

36. Photocopy of blueprint (original in HABS files) Thomas W. ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

36. Photocopy of blueprint (original in HABS files) Thomas W. Lamb, Architect July 22, 1927 INTERIOR DETAILS OF AUDITORIUM - B. F. Keith Memorial Theatre, 539 Washington Street, Boston, Suffolk County, MA

Ethical Implications of Thomas Reid's Philosophy of Rhetoric.

ERIC Educational Resources Information Center

Skopec, Eric Wm.

Eighteenth century Scottish philosopher Thomas Reid's emphasis on first principles of knowledge is fundamental to his ethics of rhetoric. Reid found the reduction of mental activities to material phenomena by Hobbes and others to be particularly odious and destructive of common sense. Turning to the analysis of human nature, he developed a radical…

Oscillations and Analogies: Thomas Young, MD, FRS, Genius.

ERIC Educational Resources Information Center

Martindale, Colin

2001-01-01

Thomas Young was a renowned genius in his time who did important work in many scientific disciplines. In today's specialized environment, scientists in each discipline do not appreciate his work. Despite his current obscurity, Young exemplifies traits found in a first-order genius (analogical thinking, high intelligence, hard work, wide interests,…

NASA's Lesa Roe Talks Eclipse with Thomas Zurbuchen

NASA Image and Video Library

2017-09-13

Lesa Roe, acting NASA deputy administrator, and Thomas Zurbuchen, NASA science mission directorate’s associate administrator, discuss their most notable experiences from the 2017 Solar Eclipse. Roe and Zurbuchen were passengers aboard NASA’s Armstrong Flight Research Center Gulfstream III aircraft, which flew 35,000 feet above the coast of Oregon during this phenomenal event.

Thomas B. Greenfield: A Challenging Perspective of Organizations

ERIC Educational Resources Information Center

Bailey, Scott

2010-01-01

Organizations are not real; people are. Any science or theory of organizations must consider how the organization impinges, in a very real and tangible way, on the lives of its members. This article traces the development of one such theoretical branch of organizational science through the pioneering work of Thomas B. Greenfield. The author uses…

Reflective Teaching and Practice: Interview with Thomas Farrell

ERIC Educational Resources Information Center

Pang, Alvin

2017-01-01

Thomas Farrell is widely known for his views and publications on the topic of Reflective Practice, which is key to the professional development of teachers in 21st century classrooms. He is Professor of Applied Linguistics at Brock University, Canada. Farrell has been a language teacher and teacher educator since 1978 and has worked in Korea,…

Thomas uses laser range finder during rendezvous ops

NASA Image and Video Library

2001-03-10

STS102-E-5064 (10 March 2001) --- Astronaut Andrew S.W. Thomas, STS-102 mission specialist, uses a laser ranging device on aft flight deck of the Space Shuttle Discovery. This instrument is a regularly called-on tool during rendezvous operations with the International Space Station (ISS). The photograph was recorded with a digital still camera.

Thomas Munro vs. the All American Blue Dishwasher

ERIC Educational Resources Information Center

Worth, Sarah E.

2002-01-01

Thomas Munro was one of the foremost enthusiasts of twentieth-century American philosophy for a new way of looking at how we study the arts and for defining the role of aesthetics in American education. He wrote prolifically on how aesthetics should be taught, the role of scientific aesthetics, and the interrelations of individual arts and how…

Paradigms and Problems: Thomas Kuhn and "Composition Revolutions".

ERIC Educational Resources Information Center

Tallman, John Gary

The arguments for and against Thomas Kuhn's paradigmatic thesis are presented in this paper as a means of discussing the appropriateness of Kuhn's thesis to the emerging composition discipline. Section one of the paper introduces the topic, noting how the term paradigm is used in composition to define a system of widely shared values, beliefs, and…

Thomas Jefferson's Plan for the University of Virginia: Lessons from the Lawn. Teaching with Historic Places.

ERIC Educational Resources Information Center

Hughes, Mary; Wilson, Sara

This lesson is based on the National Register of Historic Places registration file, "University of Virginia Historic District," and other primary and secondary materials about Thomas Jefferson and the ctreation of the University of Virginia. Thomas Jefferson did not begin the effort of designing the University of Virginia…

Pumphouse/garage and shed, looking southwest Thomas Murphy Homestead, North ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Pumphouse/garage and shed, looking southwest - Thomas Murphy Homestead, North of John Moulton Homestead, approximately 1,000 feet west of Mormon Row Road, and .25 mile north of Antelope Flats Road, Kelly, Teton County, WY

4. Historic American Buildings Survey Thomas T. Waterman, Photographer 1938 ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

4. Historic American Buildings Survey Thomas T. Waterman, Photographer 1938 GATE PIER Now at Southwest Corner Fifteenth and Constitution Avenue - U.S. Capitol, Gateposts, Nineteenth Street & Constitution (moved from Capitol), Washington, District of Columbia, DC

STS-89 M.S. Andrew Thomas waves to crowd during walkout

NASA Technical Reports Server (NTRS)

1998-01-01

STS-89 Mission Specialist Andrew Thomas, Ph.D., smiles and waves his Australian hat to the crowd outside of the Operations and Checkout Building at KSC as he heads toward the Astrovan that will transport him to Launch Pad 39A. There, the Space Shuttle Endeavour awaits to take the STS-89 crew to Russia's Mir space station, where Dr. Thomas, who was born and educated in South Australia, will succeed David Wolf, M.D. STS-89, slated for a 9:48 p.m. EST liftoff Jan. 22, is the eighth docking with the Russian Space Station Mir, the first Mir docking for Endeavour (all previous dockings were made by Atlantis), and the first launch of 1998.

5. Historic American Buildings Survey Thomas T. Waterman, Photographer 1938 ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

5. Historic American Buildings Survey Thomas T. Waterman, Photographer 1938 GATE PIER Now at Southeast Corner of Fifteenth and Constitution Avenue - U.S. Capitol, Gateposts, Nineteenth Street & Constitution (moved from Capitol), Washington, District of Columbia, DC

3. Historic American Buildings Survey Thomas T. Waterman, Photographer 1938 ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

3. Historic American Buildings Survey Thomas T. Waterman, Photographer 1938 GATE PIER Now at Northwest Corner of Fifteenth and Constitution Avenue - U.S. Capitol, Gateposts, Nineteenth Street & Constitution (moved from Capitol), Washington, District of Columbia, DC

33 CFR 207.425 - Calumet River, Ill.; Thomas J. O'Brien Lock and Controlling Works and the use, administration and...

Code of Federal Regulations, 2011 CFR

2011-07-01

... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false Calumet River, Ill.; Thomas J. O... DEFENSE NAVIGATION REGULATIONS § 207.425 Calumet River, Ill.; Thomas J. O'Brien Lock and Controlling Works... paragraph (a)(1) of this section. (b) Lock—(1) Operation. The Thomas J. O'Brien Lock and Dam is part of the...

An assessment of chemical contaminants in sediments from the St. Thomas East End Reserves, St. Thomas, USVI.

PubMed

Pait, Anthony S; Hartwell, S Ian; Mason, Andrew L; Warner, Robert A; Jeffrey, Christopher F G; Hoffman, Anne M; Apeti, Dennis A; Pittman, Simon J

2014-08-01

The St. Thomas East End Reserves or STEER is located on the southeastern end of the island of St. Thomas, USVI. The STEER contains extensive mangroves and seagrass beds, along with coral reefs, lagoons, and cays. Within the watershed, however, are a large active landfill, numerous marinas, resorts, various commercial activities, an EPA Superfund Site, and residential areas, all of which have the potential to contribute pollutants to the STEER. As part of a project to develop an integrated assessment for the STEER, 185 chemical contaminants were analyzed in sediments from 24 sites. Higher levels of chemical contaminants were found in Mangrove Lagoon and Benner Bay in the western portion of the study area. The concentrations of polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane (DDT), zinc, copper, lead, and mercury were above a NOAA Effects Range-Low (ERL) sediment quality guideline at one or more sites, indicating impacts may be present in more sensitive species or life stages. Copper at one site in Benner Bay was above a NOAA Effects Range-Median (ERM) guideline indicating effects on benthic organisms were likely. The antifoulant boat hull ingredient tributyltin (TBT) was found at the third highest concentration in the history of NOAA's National Status and Trends (NS&T) Program, which monitors the nation's coastal and estuarine waters for chemical contaminants and bioeffects. The results from this project will provide resource managers with key information needed to make effective decisions affecting coral reef ecosystem health and gauge the efficacy of restoration activities.

Astronaut Thomas Jones during emergency bailout training in WETF

NASA Image and Video Library

1993-06-02

S93-43108 (2 June 1993) --- Astronaut Thomas D. Jones, mission specialist, takes a break during emergency bailout training at the Johnson Space Center's (JSC) Weightless Environment Training Facility (WET-F). Jones and five other NASA astronauts are scheduled to fly aboard the Space Shuttle Endeavour next year.

Thomas Monroe Campbell and the "Movable School": Teaching by Demonstration.

ERIC Educational Resources Information Center

Wall, Paul L.; Noland, Juanie

1990-01-01

Tuskegee Institute sponsored the first movable school to bring agricultural training to Black adults in rural areas. Thomas Monroe Campbell, the school's first teacher, pioneered the use of demonstrations as an effective teaching tool for rural families. (IAH)

Locality of the Thomas-Fermi-von Weizsäcker Equations

NASA Astrophysics Data System (ADS)

Nazar, F. Q.; Ortner, C.

2017-06-01

We establish a pointwise stability estimate for the Thomas-Fermi-von Weiz-säcker (TFW) model, which demonstrates that a local perturbation of a nuclear arrangement results also in a local response in the electron density and electrostatic potential. The proof adapts the arguments for existence and uniqueness of solutions to the TFW equations in the thermodynamic limit by Catto et al. (The mathematical theory of thermodynamic limits: Thomas-Fermi type models. Oxford mathematical monographs. The Clarendon Press, Oxford University Press, New York, 1998). To demonstrate the utility of this combined locality and stability result we derive several consequences, including an exponential convergence rate for the thermodynamic limit, partition of total energy into exponentially localised site energies (and consequently, exponential locality of forces), and generalised and strengthened results on the charge neutrality of local defects.

Questions and Answers for Ken Thomas' "Intra-Extra Vehicular Activity Russian and Gemini Spacesuits" Presentation

NASA Technical Reports Server (NTRS)

Thomas, Kenneth S.

2016-01-01

Kenneth Thomas will discuss the Intra-Extra Vehicular Activity Russian & Gemini spacesuits. While the United States and Russia adapted to existing launch- and reentry-type suits to allow the first human ventures into the vacuum of space, there were differences in execution and capabilities. Mr. Thomas will discuss the advantages and disadvantages of this approach compared to exclusively intravehicular or extra-vehicular suit systems.

Astronaut Andrew S. W. Thomas, mission specialist, is helped with the final touches of suit donning

NASA Technical Reports Server (NTRS)

1996-01-01

STS-77 TRAINING VIEW --- Astronaut Andrew S. W. Thomas, mission specialist, is helped with the final touches of suit donning during emergency bailout training for crew members in the Johnson Space Centers (JSC) Weightless Environment Training Facility (WET-F). Thomas will join five other astronauts for nine days aboard the Space Shuttle Endeavour next month.

7. Historic American Buildings Survey, Gift of Thomas C. Vint, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

7. Historic American Buildings Survey, Gift of Thomas C. Vint, Chief of Design and Construction, National Park Service, Washington, D.C., late 19th century view, photocopied 1960, TABERNACLE - Mormon Tabernacle, Temple Square, Salt Lake City, Salt Lake County, UT

Selective heteronuclear Hartmann-Hahn: A multiple-pulse sequence for selective magnetization transfer in the structural elucidation of “isotagged” oligosaccharides

NASA Astrophysics Data System (ADS)

Meng, Xi; Nguyen, William H.; Nowick, James S.; Shaka, A. J.

2010-03-01

A new selective heteronuclear Hartmann-Hahn (SHEHAHA) multiple-pulse mixing sequence is proposed for the solution structure elucidation of milligram amounts of peracetylated oligosaccharides in which the acetyl groups are enriched in carbon-13, so-called “isotags”. SHEHAHA accomplishes exclusive in-phase magnetization transfer between the isotag carbonyl 13C and the proximal proton on the sugar ring. Relayed transfer around the sugar rings by proton-proton TOCSY is suppressed, while the heteronuclear transfer from the labeled carbonyl carbon to the proximal ring proton is maintained. The sequence is broadband in the sense that all acetyl groups simultaneously give good signal transfer to their respective nearest proton neighbors. The 1H-detected spectra have decent sensitivity and excellent resolution, giving patterns that unambiguously identify common structural subunits in human glycans. Peracetylated maltitol is shown as a test case of the method. Lineshapes are pure absorption, allowing facile measurement of vicinal proton-proton couplings. Linkage points can be deduced, and the 2D correlation spectra may be useful for more ambitious prediction algorithms and machine identification by a spectral database.

Thomas Paine: An Englishman Who Became an American Patriot.

ERIC Educational Resources Information Center

Scanlon, Thomas M.

The life of Thomas Paine had been one of constant failure and misfortune until he arrived in Philadelphia (Pennsylvania) where he rose to fame as the politically astute author of "Common Sense." Published in January 1776, "Common Sense" called for the colonies' independence from England and was written in the simple,…

Revised Thomas-Fermi approximation for singular potentials

NASA Astrophysics Data System (ADS)

Dufty, James W.; Trickey, S. B.

2016-08-01

Approximations for the many-fermion free-energy density functional that include the Thomas-Fermi (TF) form for the noninteracting part lead to singular densities for singular external potentials (e.g., attractive Coulomb). This limitation of the TF approximation is addressed here by a formal map of the exact Euler equation for the density onto an equivalent TF form characterized by a modified Kohn-Sham potential. It is shown to be a "regularized" version of the Kohn-Sham potential, tempered by convolution with a finite-temperature response function. The resulting density is nonsingular, with the equilibrium properties obtained from the total free-energy functional evaluated at this density. This new representation is formally exact. Approximate expressions for the regularized potential are given to leading order in a nonlocality parameter, and the limiting behavior at high and low temperatures is described. The noninteracting part of the free energy in this approximation is the usual Thomas-Fermi functional. These results generalize and extend to finite temperatures the ground-state regularization by R. G. Parr and S. Ghosh [Proc. Natl. Acad. Sci. U.S.A. 83, 3577 (1986), 10.1073/pnas.83.11.3577] and by L. R. Pratt, G. G. Hoffman, and R. A. Harris [J. Chem. Phys. 88, 1818 (1988), 10.1063/1.454105] and formally systematize the finite-temperature regularization given by the latter authors.

Dust acoustic solitary and shock excitations in a Thomas-Fermi magnetoplasma

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rahim, Z.; Qamar, A.; National Center for Physics

The linear and nonlinear properties of dust-acoustic waves are investigated in a collisionless Thomas-Fermi magnetoplasma, whose constituents are electrons, ions, and negatively charged dust particles. At dust time scale, the electron and ion number densities follow the Thomas-Fermi distribution, whereas the dust component is described by the classical fluid equations. A linear dispersion relation is analyzed to show that the wave frequencies associated with the upper and lower modes are enhanced with the variation of dust concentration. The effect of the latter is seen more strongly on the upper mode as compared to the lower mode. For nonlinear analysis, wemore » obtain magnetized Korteweg-de Vries (KdV) and Zakharov-Kuznetsov (ZK) equations involving the dust-acoustic solitary waves in the framework of reductive perturbation technique. Furthermore, the shock wave excitations are also studied by allowing dissipation effects in the model, leading to the Korteweg-de Vries-Burgers (KdVB) and ZKB equations. The analysis reveals that the dust-acoustic solitary and shock excitations in a Thomas-Fermi plasma are strongly influenced by the plasma parameters, e.g., dust concentration, dust temperature, obliqueness, magnetic field strength, and dust fluid viscosity. The present results should be important for understanding the solitary and shock excitations in the environments of white dwarfs or supernova, where dust particles can exist.« less

8. Historic American Buildings Survey, Gift of Thomas C. Vint, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

8. Historic American Buildings Survey, Gift of Thomas C. Vint, Chief of Design and Construction, National Park Service, Washington, D.C., late 19th century view, photocopied 1960, VIEW OF CONSTRUCTION - Mormon Tabernacle, Temple Square, Salt Lake City, Salt Lake County, UT

Limitations of the Porter-Thomas distribution

NASA Astrophysics Data System (ADS)

Weidenmüller, Hans A.

2017-12-01

Data on the distribution of reduced partial neutron widths and on the distribution of total gamma decay widths disagree with the Porter-Thomas distribution (PTD) for reduced partial widths or with predictions of the statistical model. We recall why the disagreement is important: The PTD is a direct consequence of the orthogonal invariance of the Gaussian Orthogonal Ensemble (GOE) of random matrices. The disagreement is reviewed. Two possible causes for violation of orthogonal invariance of the GOE are discussed, and their consequences explored. The disagreement of the distribution of total gamma decay widths with theoretical predictions cannot be blamed on the statistical model.

Cold pasta phase in the extended Thomas-Fermi approximation

NASA Astrophysics Data System (ADS)

Avancini, S. S.; Bertolino, B. P.

2015-10-01

In this paper, we aim to obtain more accurate values for the transition density to the homogenous phase in the nuclear pasta that occurs in the inner crust of neutron stars. To that end, we use the nonlinear Walecka model at zero temperature and an approach based on the extended Thomas-Fermi (ETF) approximation.

Determining the 630nm emission altitude using modelling and observations from a tristatic configuration of Fabry-Perot Interferometers and EISCAT radars.

NASA Astrophysics Data System (ADS)

Aruliah, Anasuya; Kosch, Michael

Anasuya Aruliah, a.aruliah@ucl.ac.uk University College London, London, United Kingdom Michael Kosch, m.kosch@lancaster.ac.uk Lancaster University, Lancaster, United Kingdom Tristatic team Anasuya Aruliah,Ho-Ching Iris Yiu,Ian McWhirter, Michael Kosch,Kazuo Shiokawa,Shin-ichiro Oyama,Satonori Nozawa,Vikki Howells,Ian McCrea During early February 2010 a tristatic FPI-EISCAT experiment was run in order to investigate the peak emission altitude of the 630nm airglow and auroral emission in the region of the auroral oval. Two UCL Fabry-Perot Interferometers and a new STEL FPI have been located close to the three EISCAT radars at Tromsø, Kiruna and Sodankylü. The radars were pointed a at a common volume seen by all three FPIs, on assuming a peak emission height of 235km. This altitude is generally assumed to be fairly steady for FPI studies probing the behaviour of the upper atmosphere, though the height is a little different at other latitudes. The smoothing effect of the large viscosity of the upper thermosphere is invoked as a reason why the actual altitude is not too important, and there has been little investigation of the appropriateness of this assumption. However, mesoscale variability in the ionosphere has now been identified as producing a similar quantity of heating as does steady state convection; and FPIs and the CHAMP satellite have shown mesoscale structure in the high-latitude thermosphere. This indicates a need to revisit old assumptions that were based on the premise of thermospheric variability being large-scale. The STEL FPI at Ramfjord has a fully variable pointing direction mechanism and was programmed to point rapidly at successive volumes that would overlap the UCL KEOPS/Kiruna FPI look direction if the emission volume was 195km, 215km, 235km and 255km. Cross-correlation of the temperatures and intensity measurements would then identify the peak emission height. The EISCAT radar provided ionospheric parameters to model the 630nm emission profile

1. Historic American Buildings Survey, Gift of Thomas C. Vint, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

1. Historic American Buildings Survey, Gift of Thomas C. Vint, Chief of Design and Construction, National Park Service, Washington, D.C., view of 1892, photocopied 1960, LAYING THE CAP STONE OF THE TEMPLE. - Salt Lake Temple, Temple Square, Salt Lake City, Salt Lake County, UT

ASTRONAUT THOMAS P. STAFFORD - TRAINING (WATER EGRESS) (GT-6 PILOT)

NASA Image and Video Library

1965-08-23

S65-43954 (23 Aug. 1965) --- Astronaut Thomas P. Stafford, Gemini-6 prime crew pilot, climbs out of a boilerplate model of a Gemini spacecraft during water egress training in the Gulf of Mexico. A NASA swimmer in the water nearby assists in the exercise.

Full depth bituminous recycling of I-70, Thomas County, Kansas

DOT National Transportation Integrated Search

2004-01-01

In 1990, 13 full depth asphalt pavement test sections were built on a portion of I-70 in Thomas County, Kansas. Various combinations of hot mix and cold recycle mixes with different additives were used to build the test sections. Two of the test sect...

Teaching with Purpose: An Interview with Thomas E. Ludwig

ERIC Educational Resources Information Center

Ludwig, Timothy D.; Ludwig, David J.

2010-01-01

Thomas E. Ludwig is the John Dirk Werkman Professor of Psychology at Hope College, where he joined the faculty in 1977 after receiving his PhD in development and aging from Washington University in St. Louis. His research focuses on developmental issues in cognitive neuropsychology. He is also the author or coauthor of more than a dozen sets of…

Future-Minded: Aaron Schmidt--Thomas Ford Memorial Library, IL

ERIC Educational Resources Information Center

Library Journal, 2005

2005-01-01

Like many young people, Aaron Schmidt loves electronic gadgets. But not for their own sake. He believes the future of libraries depends on how well we meet the needs of today's young adults, who are far more tech-fluent than most librarians. As reference librarian and all-around technology guru at Thomas Ford Memorial Library, Schmidt created the…

76 FR 26223 - Petition for Rulemaking Submitted by Thomas Popik

Federal Register 2010, 2011, 2012, 2013, 2014

2011-05-06

... [in ensuring] that large U.S. land areas do not become contaminated with nuclear radiation and... NUCLEAR REGULATORY COMMISSION 10 CFR Part 50 [Docket No. PRM-50-96; NRC-2011-0069] Petition for Rulemaking Submitted by Thomas Popik AGENCY: Nuclear Regulatory Commission. ACTION: Petition for rulemaking...

STS-77 MS Andrew Thomas suits up

NASA Technical Reports Server (NTRS)

1996-01-01

STS-77 Mission Specialist Andrew S. W. Thomas finishes donning his launch/entry suit in the Operations and Checkout Building with assistance from a suit technician. A native of South Australia, the rookie astronaut joins a crew of five veterans on the fourth Shuttle flight of 1996. They will depart shortly for Launch Pad 39B, where the Space Shuttle Endeavour is undergoing final preparations for liftoff during a two-and-a-half hour launch window opening at 6:30 a.m. EDT, May 19.

The Thomas Outreach Project (TOP): An Early Years Intervention for Children with an Autistic Spectrum Disorder (ASD)

ERIC Educational Resources Information Center

Medhurst, Belinda; Clay, Daisy

2008-01-01

The Thomas Outreach Project (TOP) has developed from the Hampshire outline for meeting the needs of under fives on the autistic spectrum (THOMAS) course and has been in operation for over five years in Hampshire, supporting pre-schools and families with a range of strategies for use in all settings. In reviewing the service delivered we have…

Religious Conscience and Civic Conscience in Thomas Hobbes's Civic Philosophy.

ERIC Educational Resources Information Center

Pepperell, Keith C.

1989-01-01

This article discusses Thomas Hobbes' concept of conscience, the historical context in which the concept was formulated, and Hobbes' conclusion that civil law takes precedence over religious conscience. Hobbes' views are related to the debate between Pratte and Losito over the interaction between religious and civic conscience. (IAH)

Astronaut Thomas Stafford during water egress training in Gulf of Mexico

NASA Technical Reports Server (NTRS)

1965-01-01

Astronaut Thomas P. Stafford, Gemini 6 prime crew pilot, climbs out of a boilerplate model of a Gemini spacecraft during water egress training in the Gulf of Mexico. A NASA swimmer in the water nearby assists in the exercise.

[Thomas Fincke and trigonometry].

PubMed

Schönbeck, Jürgen

2004-01-01

Thomas Fincke (January 6th, 1561 - April 24th, 1650), born in Flensburg (Germany), was one of the very most important and significant scientists in Denmark during the seventeenth century, a mathematician and astrologer and physician in the beginning of modern science, a representative of humanism and an influentual academic organizer. He studied in Strasbourg (since 1577) and Padua (since 1583) and received his M.D. in Basel (1587), he practised as a physician throughtout his life (since 1587 or 1590) and became a professor at Copenhagen (1591). But he was best known because of his Geometriae rotundi libri XIIII (1583), a famous book on plane and spherical trigonometry, based not on Euclid but on Petrus Ramus. In this influentual work, in which Fincke introduced the terms tangent and secant and probable first noticed the Law of Tangents and the so-called Newton-Oppel-Mauduit-Simpson-Mollweide-Gauss-formula, he showed himself to be ,,abreast of the mathematics of his time".

The Invention Factory: Thomas Edison's Laboratories. Teaching with Historic Places.

ERIC Educational Resources Information Center

Bolger, Benjamin

This lesson explores the group of buildings in West Orange, New Jersey, built in 1887, that formed the core of Thomas Edison's research and development complex. They consisted of chemistry, physics, and metallurgy laboratories; machine shop; pattern shop; research library; and rooms for experiments. The lesson explains that the prototypes (ideas…

19. VIEW OF EAST ELEVATION. THOMAS G. WILSON ADDED THE ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

19. VIEW OF EAST ELEVATION. THOMAS G. WILSON ADDED THE ONE-STORY RETAIL STORE IN 1958. IT REPLACED A SMALLER ONE-STORY OFFICE IN THE SAME LOCATION. Photographer: Louise Taft Cawood, July 1986 - Alexander's Grist Mill, Lock 37 on Ohio & Erie Canal, South of Cleveland, Valley View, Cuyahoga County, OH

An Artificial Particle Precipitation Technique Using HAARP-Generated VLF Waves

DTIC Science & Technology

2006-11-02

AFRL-VS-HA-TR-2007-1021 An Artificial Particle Precipitation Technique Using HAARP -Generated VLF Waves O o o r- Q M. J. Kosch T. Pedersen J...Artificial Particle Precipitation Technique Using HAARP Generated VLF Waves. 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 62101F...model. The frequency-time modulated VLF wave patterns have been successfully implemented at the HAARP ionospheric modification facility in Alaska

76 FR 20032 - Thomas E. Mitchell, M.D.; Dismissal of Proceeding

Federal Register 2010, 2011, 2012, 2013, 2014

2011-04-11

... DEPARTMENT OF JUSTICE Drug Enforcement Administration [Docket No. 10-7] Thomas E. Mitchell, M.D.; Dismissal of Proceeding On September 11, 2009, the Deputy Assistant Administrator, Office of Diversion... procedural misconduct, misrepresentations and the subsequent illegitimate denial of due process.'' Id. On...

Runco and Thomas show off trays of food on the middeck

NASA Image and Video Library

1996-05-26

S77-E-5120 (26 May 1996) --- Astronauts Mario Runco, Jr. and Andrew S. W. Thomas, both mission specialists, pose for photo while in the middeck of the Earth-orbiting Space Shuttle Endeavour. The scene was recorded with an Electronic Still Camera (ESC).

2. Historic American Buildings Survey, Gift of Thomas C. Vint, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

2. Historic American Buildings Survey, Gift of Thomas C. Vint, Chief of Design and Construction, National Park Service, Washington, D.C., view of 1892, photocopied 1960, CAP STONE OF THE TEMPLE TAKEN A FEW SECONDS BEFORE THE STONE DROPPED INTO POSITION. - Salt Lake Temple, Temple Square, Salt Lake City, Salt Lake County, UT

Thomas Kuhn's Impact on Science Education: What Lessons Can Be Learned?

ERIC Educational Resources Information Center

Matthews, Michael R.

2004-01-01

Thomas Kuhn has had an impact in all academic fields. In science education, Kuhnian themes are especially noticeable in conceptual change research, constructivist theorizing, and multicultural education debates. Unfortunately the influence is frequently compromised by researchers having a limited understanding of Kuhn's original ideas, little…

The Fallacies of Flatness: Thomas Friedman's "The World Is Flat"

ERIC Educational Resources Information Center

Abowitz, Kathleen Knight; Roberts, Jay

2007-01-01

Thomas Friedman's best-selling "The World is Flat" has exerted much influence in the west by providing both an accessible analysis of globalization and its economic and social effects, and a powerful cultural metaphor for globalization. In this review, we more closely examine Friedman's notion of the social contract, the moral center of his…

27. Historic American Buildings Survey Thomas Paine, Photographer 1969 PHOTOCOPY ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

27. Historic American Buildings Survey Thomas Paine, Photographer 1969 PHOTOCOPY OF ORIGINAL PHOTOGRAPH, TAKEN BETWEEN 1850 AND 1860, SHOWING THE NORTH ELEVATION OF THE CROWN AND EAGLE MILLS From the Crown and Eagle Mills Collection c/o Mr. Kent Robinson, North Uxbridge, Massachusetts - Crown & Eagle Mills, 123 Hartford Avenue East, North Uxbridge, Worcester County, MA

Astronaut Andrew S. W. Thomas, mission specialist, interrupts a Spacehab task to pose for an

NASA Technical Reports Server (NTRS)

1996-01-01

STS-77 ESC VIEW --- Astronaut Andrew S. W. Thomas, mission specialist, interrupts a Spacehab task to pose for an Electronic Still Camera (ESC) snapshot inside the Spacehab Module onboard the Earth-orbiting Space Shuttle Endeavour. In upper left is the view port which crew members had used for viewing and photographing operations with the Spartan 207/Inflatable Antenna Experiment (IAE). Thomas has his hand on an aft-bulkhead-mounted locker. The Space Experiment Facility (SEF), designed and managed by the University of Alabama, is just behind his left shoulder.

Determinants of female dispersal in Thomas langurs.

PubMed

Sterck, E H

1997-01-01

Female dispersal occurs in a number of primate species. It may be related to: avoidance of inbreeding, reduction in food competition, reduction of predation risk, or avoidance of infanticide in combination with mate choice. Female dispersal was studied for a 5-year period in a wild population of Thomas langurs (Presbytis thomasi) that lived in one-male multi-female groups. Juvenile and adult individuals of both sexes were seen to disperse. Females appeared to transfer unhindered between groups, mostly from a larger group to a recently formed smaller one. They transferred without their infants and when not pregnant, and seemed to transfer preferentially during periods when extra-group males were harassing their group. During these inter-group encounters extra-group males seemed to try to commit infanticide. Thus, the timing of female transfer was probably closely linked to infanticide avoidance. Moreover, females seemed to transfer when the resident male of their group was no longer a good protector. The observations in the present study suggest that females transferred to reduce the risk of infanticide. Female dispersal may have another ultimate advantage as well, namely inbreeding avoidance. Due to the dispersal of both females and males the social organization of Thomas langurs was rather fluid. New groups were formed when females joined a male; male takeovers were not observed. Bisexual groups had only a limited life span, because all adult females of a bisexual group could emigrate. This pattern of unhindered female dispersal affects male reproductive strategies, and in particular it might lead to infanticidal behavior during inter-group encounters.

From education to occupation: the story of Thomas Bessell Kidner.

PubMed

Friedland, Judith; Davids-Brumer, Naomi

2007-02-01

Thomas Bessell Kidner is well-known in the United States as a great contributor to occupational therapy. He is not well-known in Canada despite the fact that his first contributions to the profession were made here between 1900 and 1918. To tell the story of Thomas Bessell Kidner and his impact on occupational therapy. Interpretive biography research methods using archival materials, published papers and family papers. Kidner's work as an organizer of manual training in elementary schools in Nova Scotia and New Brunswick and as Director of Technical Education for Calgary prepared him for his work as Vocational Secretary of the Military Hospitals Commission during World War I. Kidner developed, implemented and oversaw the reeducation program for injured soldiers across Canada. It included bedside occupations, off-ward and curative workshop activities provided by ward aides, as well as industrial training and apprenticeships in the workplace. Kidner's story stimulates us to revisit our profession's early emphasis on return-to-work. Knowing about our past helps occupational therapists to build a stronger identity.

[Book review] The youngest science: notes of a medicine-watcher, by Lewis Thomas

USGS Publications Warehouse

Johnson, D.H.

1984-01-01

Review of: The youngest science: notes of a medicine-watcher. Alfred P. Sloan Foundation Series. Lewis Thomas. Penguin Books, 1995. Pennsylvania State University. 270 pp. ISBN: 0140243275, 9780140243277.

Thomas Aquinas: Integrating Faith and Reason in the Catholic School

ERIC Educational Resources Information Center

Doyle, Dennis M.

2007-01-01

The Second Vatican Council, social upheaval, and quickly changing cultural norms were a part of the fabric of life in the 1960s. Values and beliefs held firmly for generations were called into question. Faith, once solid, appeared to some Catholics to turn fluid and doubtful. Though now well over seven centuries old, the work of Thomas Aquinas can…

Porter-Thomas distribution in unstable many-body systems

DOE Office of Scientific and Technical Information (OSTI.GOV)

Volya, Alexander

We use the continuum shell model approach to explore the resonance width distribution in unstable many-body systems. The single-particle nature of a decay, the few-body character of the interaction Hamiltonian, and the collectivity that emerges in nonstationary systems due to the coupling to the continuum of reaction states are discussed. Correlations between the structures of the parent and daughter nuclear systems in the common Fock space are found to result in deviations of decay width statistics from the Porter-Thomas distribution.

Trial densities for the extended Thomas-Fermi model

NASA Astrophysics Data System (ADS)

Yu, An; Jimin, Hu

1996-02-01

A new and simplified form of nuclear densities is proposed for the extended Thomas-Fermi method (ETF) and applied to calculate the ground-state properties of several spherical nuclei, with results comparable or even better than other conventional density profiles. With the expectation value method (EVM) for microscopic corrections we checked our new densities for spherical nuclei. The binding energies of ground states almost reproduce the Hartree-Fock (HF) calculations exactly. Further applications to nuclei far away from the β-stability line are discussed.

Quasi-four-body treatment of charge transfer in the collision of protons with atomic helium: I. Thomas related mechanisms

NASA Astrophysics Data System (ADS)

Safarzade, Zohre; Fathi, Reza; Shojaei Akbarabadi, Farideh; Bolorizadeh, Mohammad A.

2018-04-01

The scattering of a completely bare ion by atoms larger than hydrogen is at least a four-body interaction, and the charge transfer channel involves a two-step process. Amongst the two-step interactions of the high-velocity single charge transfer in an anion-atom collision, there is one whose amplitude demonstrates a peak in the angular distribution of the cross sections. This peak, the so-called Thomas peak, was predicted by Thomas in a two-step interaction, classically, which could also be described through three-body quantum mechanical models. This work discusses a four-body quantum treatment of the charge transfer in ion-atom collisions, where two-step interactions illustrating a Thomas peak are emphasized. In addition, the Pauli exclusion principle is taken into account for the initial and final states as well as the operators. It will be demonstrated that there is a momentum condition for each two-step interaction to occur in a single charge transfer channel, where new classical interactions lead to the Thomas mechanism.

Optical Thomas-Reiche-Kuhn sum rules.

PubMed

Barnett, Stephen M; Loudon, Rodney

2012-01-06

The Thomas-Reiche-Kuhn sum rule is a fundamental consequence of the position-momentum commutation relation for an atomic electron and it provides an important constraint on the transition matrix elements for an atom. Analogously, the commutation relations for the electromagnetic field operators in a magnetodielectric medium constrain the properties of the dispersion relations for the medium through four sum rules for the allowed phase and group velocities for polaritons propagating through the medium. These rules apply to all bulk media including the metamaterials designed to provide negative refractive indices. An immediate consequence of this is that it is not possible to construct a medium in which all the polariton modes for a given wavelength lie in the negative-index region.

Optical Thomas-Reiche-Kuhn Sum Rules

NASA Astrophysics Data System (ADS)

Barnett, Stephen M.; Loudon, Rodney

2012-01-01

The Thomas-Reiche-Kuhn sum rule is a fundamental consequence of the position-momentum commutation relation for an atomic electron and it provides an important constraint on the transition matrix elements for an atom. Analogously, the commutation relations for the electromagnetic field operators in a magnetodielectric medium constrain the properties of the dispersion relations for the medium through four sum rules for the allowed phase and group velocities for polaritons propagating through the medium. These rules apply to all bulk media including the metamaterials designed to provide negative refractive indices. An immediate consequence of this is that it is not possible to construct a medium in which all the polariton modes for a given wavelength lie in the negative-index region.

Thomas Bruce Ferguson, MD, May 6, 1923-May 26, 2013.

PubMed

Patterson, G Alexander

2014-04-01

Thomas Bruce Ferguson, the 12th president of The Society of Thoracic Surgeons, died surrounded by his family on May 26, 2013. He was a legendary figure in the world of cardiothoracic surgery. His visionary leadership was an inspiration to generations of cardiothoracic surgeons around the world. Copyright © 2014 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.

3 CFR 9046 - Proclamation 9046 of October 28, 2013. Death of Thomas S. Foley Former Speaker of the House of...

Code of Federal Regulations, 2014 CFR

2014-01-01

... Thomas S. Foley Former Speaker of the House of Representatives 9046 Proclamation 9046 Presidential Documents Proclamations Proclamation 9046 of October 28, 2013 Proc. 9046 Death of Thomas S. Foley Former Speaker of the House of RepresentativesBy the President of the United States of America A Proclamation As...

Thomas Young's investigations in gradient-index optics.

PubMed

Atchison, David A; Charman, W Neil

2011-05-01

James Clerk Maxwell is usually recognized as being the first, in 1854, to consider using inhomogeneous media in optical systems. However, some 50 years earlier, Thomas Young, stimulated by his interest in the optics of the eye and accommodation, had already modeled some applications of gradient-index optics. These applications included using an axial gradient to provide spherical aberration-free optics and a spherical gradient to describe the optics of the atmosphere and the eye lens. We evaluated Young's contributions. We attempted to derive Young's equations for axial and spherical refractive index gradients. Raytracing was used to confirm accuracy of formula. We did not confirm Young's equation for the axial gradient to provide aberration-free optics but derived a slightly different equation. We confirmed the correctness of his equations for deviation of rays in a spherical gradient index and for the focal length of a lens with a nucleus of fixed index surrounded by a cortex of reducing index toward the edge. Young claimed that the equation for focal length applied to a lens with part of the constant index nucleus of the sphere removed, such that the loss of focal length was a quarter of the thickness removed, but this is not strictly correct. Young's theoretical work in gradient-index optics received no acknowledgment from either his contemporaries or later authors. Although his model of the eye lens is not an accurate physiological description of the human lens, with the index reducing least quickly at the edge, it represented a bold attempt to approximate the characteristics of the lens. Thomas Young's work deserves wider recognition.

A Magnet for Homeless Students: The Thomas J. Pappas Regional Education Center.

ERIC Educational Resources Information Center

Woods, Cyndy Jones; Harrison, Darwin

1994-01-01

Describes the reasoning behind and services provided at the Thomas J. Pappas regional education center in Phoenix, Arizona, a magnet school for homeless students from all over the Phoenix area. Notes that the center provides some stability and extensive support to students. (SR)

Warm ''pasta'' phase in the Thomas-Fermi approximation

DOE Office of Scientific and Technical Information (OSTI.GOV)

Avancini, Sidney S.; Menezes, Debora P.; Chiacchiera, Silvia

In the present article, the 'pasta' phase is studied at finite temperatures within a Thomas-Fermi (TF) approach. Relativistic mean-field models, both with constant and density-dependent couplings, are used to describe this frustrated system. We compare the present results with previous ones obtained within a phase-coexistence description and conclude that the TF approximation gives rise to a richer inner ''pasta'' phase structure and the homogeneous matter appears at higher densities. Finally, the transition density calculated within TF is compared with the results for this quantity obtained with other methods.

Paradigms in epidemiology textbooks: in the footsteps of Thomas Kuhn.

PubMed Central

Bhopal, R

1999-01-01

This article attempts to contribute to the debate on the future of epidemiology by combining Thomas Kuhn's ideas on scientific paradigms with the author's observations on some epidemiology textbooks. The author's interpretations were based on his readings of Kuhn's The Structure of Scientific Revolutions, epidemiology textbooks, and papers on the future of epidemiology. Thomas Kuhn's view is that sciences mostly work with a single paradigm driven by exemplars of successful work, and that proposals for paradigm change are resisted. Sciences that are maturing or changing do not have a dominant paradigm. Epidemiology textbooks showed diversity in their concepts, content, and approach. Most exemplars related to etiologic research rather than public health practice. One key focus of the recent controversy regarding the role of epidemiology has been the increasing inability of epidemiology to solve socially based public health problems. Kuhn's views help explain the polarization of views expressed. Kuhn's philosophy of science offers insights into controversies such as whether a paradigm shift is needed or imminent and the gap between epidemiology and public health practice. Interaction between science philosophers, epidemiologists, and public health practitioners may be valuable. PMID:10432899

Paradigms in epidemiology textbooks: in the footsteps of Thomas Kuhn.

PubMed

Bhopal, R

1999-08-01

This article attempts to contribute to the debate on the future of epidemiology by combining Thomas Kuhn's ideas on scientific paradigms with the author's observations on some epidemiology textbooks. The author's interpretations were based on his readings of Kuhn's The Structure of Scientific Revolutions, epidemiology textbooks, and papers on the future of epidemiology. Thomas Kuhn's view is that sciences mostly work with a single paradigm driven by exemplars of successful work, and that proposals for paradigm change are resisted. Sciences that are maturing or changing do not have a dominant paradigm. Epidemiology textbooks showed diversity in their concepts, content, and approach. Most exemplars related to etiologic research rather than public health practice. One key focus of the recent controversy regarding the role of epidemiology has been the increasing inability of epidemiology to solve socially based public health problems. Kuhn's views help explain the polarization of views expressed. Kuhn's philosophy of science offers insights into controversies such as whether a paradigm shift is needed or imminent and the gap between epidemiology and public health practice. Interaction between science philosophers, epidemiologists, and public health practitioners may be valuable.

An Estimate of the Economic Impacts of Thomas Nelson Community College.

ERIC Educational Resources Information Center

Butler, Thomas E.

A study was conducted at Thomas Nelson Community College (TNCC) to assess the college's economic impact on its service area in fiscal year 1979. Models, based on linear cash flow formulas, were used to determine impacts on local businesses, governments, and individuals. Students' expenditures and spending for construction were omitted from the…

Thomas Berdmore, dentist of His Majesty, George III, and dental calculus.

PubMed

Andreana, S; Andreana, G; Gonzalez, Y M; Ciancio, S

1996-11-01

Thomas Berdmore's book, Disorders of Deformities of the Teeth and Gums, presents examples of early concepts of preventive dentistry and treatment of periodontal diseases. Various aspects of dental calculus formation and composition are analyzed. Also the effects of periodontal disease as seen by Berdmore are discussed, and ways of treatment in 1770 summarized.

Introduction: A Symposium in Honor of Professor Sir John Meurig Thomas

NASA Astrophysics Data System (ADS)

Gai, P. L.; Saka, H.; Tomokiyo, Y.; Boyes, E. D.

2002-02-01

This issue is dedicated to Professor Sir John Meurig Thomas for his renowned contributions to electron microscopy in the chemical sciences. It is a collection of peer-reviewed leading articles in electron microscopy, based on the presentations at the Microscopy and Microanalysis (M&M) 2000 symposium, which was held to honor Professor Thomas's exceptional scientific leadership and wide-ranging fundamental contributions in the chemical applications of electron microscopy.The issue contains key papers by leading international researchers on the recent developments and applications of electron microscopy in the solid state and liquid state sciences. They include synthesis and characterization of silicon nitride nanorods, nanostructures of amorphous silica, electron microscopy studies of nanoscale structure and chemistry of Pt-Ru electrocatalysts of interest in direct methanol fuel cells, development of in situ wet-environmental transmission electron microscopy for the first nanoscale studies of dynamic liquid-catalyst reactions, strain analysis of silicon by finite element method and energy filtering convergent beam electron diffraction, applications of chemistry with electron microscopy, bismuth nanowires for applications in nanoelectronics technology, synthesis and characterization of quantum dots for superlattices and in situ electron microscopy at very high temperatures to study the motion of W5Si3 on [alpha][beta]-SiN3 substrates.We thank all the participants, including the invited speakers, contributors, and session chairs, who made the symposium successful. We also thank the authors and reviewers of the papers who worked assiduously towards the publication of this issue.We are very grateful to the Microscopy Society of America (MSA) for providing the opportunity to honor Professor Sir John Meurig Thomas. Organizational support from the MSA is also gratefully acknowledged.We thank Charles E. Lyman, editor in chief of Microscopy and Microanalysis for coordinating

Parallel Directionally Split Solver Based on Reformulation of Pipelined Thomas Algorithm

NASA Technical Reports Server (NTRS)

Povitsky, A.

1998-01-01

In this research an efficient parallel algorithm for 3-D directionally split problems is developed. The proposed algorithm is based on a reformulated version of the pipelined Thomas algorithm that starts the backward step computations immediately after the completion of the forward step computations for the first portion of lines This algorithm has data available for other computational tasks while processors are idle from the Thomas algorithm. The proposed 3-D directionally split solver is based on the static scheduling of processors where local and non-local, data-dependent and data-independent computations are scheduled while processors are idle. A theoretical model of parallelization efficiency is used to define optimal parameters of the algorithm, to show an asymptotic parallelization penalty and to obtain an optimal cover of a global domain with subdomains. It is shown by computational experiments and by the theoretical model that the proposed algorithm reduces the parallelization penalty about two times over the basic algorithm for the range of the number of processors (subdomains) considered and the number of grid nodes per subdomain.

33 CFR 207.425 - Calumet River, Ill.; Thomas J. O'Brien Lock and Controlling Works and the use, administration and...

Code of Federal Regulations, 2010 CFR

2010-07-01

... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Calumet River, Ill.; Thomas J. O... DEFENSE NAVIGATION REGULATIONS § 207.425 Calumet River, Ill.; Thomas J. O'Brien Lock and Controlling Works... Illinois Waterway, or when the lake level is below minus 2 feet, Chicago City Datum. (2) The elevation to...

On the Road with Thomas Hart Benton: Images of a Changing America.

ERIC Educational Resources Information Center

Johnson, Mark M.

1999-01-01

Summarizes the life and work of artist Thomas Hart Benton. Focuses on his paintings of the United States that capture the characteristics of regional life, customs, and nature before modern advancements and urbanization. Provides the itinerary for the 14- venue tour of 77 of Benton's works. (CMK)

Thomas Jefferson's Road to the White House. Teaching with Historic Places.

ERIC Educational Resources Information Center

Hunter, Kathleen

This unit focuses on Thomas Jefferson's route from his home at Monticello in Virginia to the White House when he traveled to Washington in November of 1800 for the upcoming presidential election. The document traces his journey by phaeton, a four wheeled light carriage, from Monticello to: (1) James Madison's home at Montpelier, a distance of 28…

Losing Thomas & Ella: A Father's Story (A Research Comic).

PubMed

Weaver-Hightower, Marcus B

2017-09-01

"Losing Thomas & Ella" presents a research comic about one father's perinatal loss of twins. The comic recounts Paul's experience of the hospital and the babies' deaths, and it details the complex grieving process afterward, including themes of anger, distance, relationship stress, self-blame, religious challenges, and resignation. A methodological appendix explains the process of constructing the comic and provides a rationale for the use of comics-based research for illness, death, and grief among practitioners, policy makers, and the bereaved.

Remediation System Evaluation, Tutu Wellfield Superfund Site, St. Thomas, U.S. Virgin Islands

EPA Pesticide Factsheets

The Tutu Wellfield Superfund Site is a 1.5 square mile site located on the eastern end of St. Thomas, U.S. Virgin Islands (USVI) within the upper Turpentine Run surface drainage basin in the Anna’s Retreat area.

Thomas-Fermi simulations of dense plasmas without pseudopotentials

NASA Astrophysics Data System (ADS)

Starrett, C. E.

2017-07-01

The Thomas-Fermi model for warm and hot dense matter is widely used to predict material properties such as the equation of state. However, for practical reasons current implementations use pseudopotentials for the electron-nucleus interaction instead of the bare Coulomb potential. This complicates the calculation and quantities such as free energy cannot be converged with respect to the pseudopotential parameters. We present a method that retains the bare Coulomb potential for the electron-nucleus interaction and does not use pseudopotentials. We demonstrate that accurate free energies are obtained by checking variational consistency. Examples for aluminum and iron plasmas are presented.

Electrostatic interactions between ions near Thomas-Fermi substrates and the surface energy of ionic crystal at imperfect metals

PubMed Central

Kaiser, V.; Comtet, J.; Niguès, A.; Siria, A.; Coasne, B.; Bocquet, L.

2017-01-01

The electrostatic interaction between two charged particles is strongly modified in the vicinity of a metal. This situation is usually accounted for by the celebrated image charges approach, which was further extended to account for the electronic screening properties of the metal at the level of the Thomas-Fermi description. In this paper we build upon the approach by [Kornyshev et al. Zh. Eksp. Teor. Fiz., 78(3):1008–1019, 1980] and successive works to calculate the 1-body and 2-body electrostatic energy of ions near a metal in terms of the Thomas-Fermi screening length. We propose workable approximations suitable for molecular simulations of ionic systems close to metallic walls. Furthermore, we use this framework to calculate analytically the electrostatic contribution to the surface energy of a one dimensional crystal at a metallic wall and its dependence on the Thomas-Fermi screening length. These calculations provide a simple interpretation for the surface energy in terms of image charges, which allow for an estimate of interfacial properties in more complex situations of a disordered ionic liquid close to a metal surface. A counterintuitive outcome is that electronic screening, as characterized by a molecular Thomas-Fermi length ℓTF, profoundly affects the wetting of ionic systems close to a metal, in line with the recent experimental observation of capillary freezing of ionic liquids in metallic confinement. PMID:28436506

Thomas L. Griffiths: Award for Distinguished Scientific Early Career Contributions to Psychology

ERIC Educational Resources Information Center

American Psychologist, 2012

2012-01-01

Presents a short biography of one of the winners of the American Psychological Association's Award for Distinguished Scientific Early Career Contributions to Psychology (2012). Thomas L. Griffiths won the award for bringing mathematical precision to the deepest questions in human learning, reasoning, and concept formation. In his pioneering work,…

The Importance of Peer Review: Thoughts on Knudson, Morrow, and Thomas (2014)

ERIC Educational Resources Information Center

Fischman, Mark G.

2014-01-01

Knudson, Morrow, and Thomas (2014) recently summarized a number of important issues related to the quality of peer review and current peer-review practice in kinesiology. This writer endorses their six recommendations for improving peer review in kinesiology journals. The purpose of this commentary is to further highlight the importance of…

(GT-6 PRIME CREW((PREFLIGHT ACTIVITY) - ASTRONAUT THOMAS P. STAFFORD - MISC.

NASA Image and Video Library

1965-12-12

S65-59977 (15 Dec. 1965) --- Astronauts Thomas P. Stafford (foreground), Gemini-6 prime crew pilot; and Alan B. Shepard Jr., chief, Astronaut Office, Manned Spacecraft Center, look over a Gemini mission chart in the suiting trailer at Launch Complex 16 during the Gemini-6 prelaunch countdown at Cape Kennedy, Florida. Photo credit: NASA or National Aeronautics and Space Administration

[Changes in whole blood ionized magnesium concentration during cardiac surgery employing St. Thomas' cardioplegic solution].

PubMed

Chang, Kyung-ho; Bougaki, Masahiko; Kubota, Ryou; Tsubaki, Kumiko; Matsuo, Hideki; Hanaoka, Kazuo

2003-04-01

Although there is growing evidence to suggest that magnesium supplementation to patients undergoing cardiac surgery is beneficial, the way to administer magnesium is not established. Moreover in Japan St Thomas' cardioplegic solution, containing a high level of magnesium is widely used and the effect of such magnesium-rich cardioplegic solutions on blood magnesium concentration has not been well defined. We measured ionized magnesium concentrations (iMg) during cardiac surgery employing St Thomas' solution. Patients were divided into four groups. Group 1 patients were adults and group 2 were children, both of whom received St. Thomas' solution. Group 3 patients underwent cardiopulmonary bypass but did not receive any cardioplegic solution. Group 4 patients underwent off-pump coronary artery bypass grafting. In cardioplegia group (group 1 and 2) iMg was higher than the normal reference range at periods of rewarming, immediately postbypass, and at the end of the operation. iMg at immediately postbypass was related to the total amount of cardioplegic solution. In non-cardioplegia group (group 3 and 4) progressive decrease of iMg was observed throughout the operation. Because magnesium in cardioplegic solutions has substantial effect on perioperative iMg, it is crucial to measure iMg to avoid overdose of magnesium when magnesium-rich cardioplegic solutions are employed.

Examining the equivalence of Bakamjian-Thomas mass operators in different forms of dynamics

DOE Office of Scientific and Technical Information (OSTI.GOV)

Polyzou, W. N.

We discus the proof of the equivalence of relativistic quantum mechanical models based on the generalized Bakamjian-Thomas construction in all of Dirac's forms of dynamics. Explicit representations of the equivalent mass operators are given in all three of Dirac's forms of dynamics.

Samuel Thomas Soemmerring (1755-1830): The Naming of Cranial Nerves.

PubMed

Pearce, John M S

2017-01-01

Samuel Thomas Soemmerring was a Prussian polymathic doctor with remarkable achievements in anatomy, draftsmanship and inventions. His naming of 12 pairs of cranial nerves in his graduation thesis is of particular importance. He also gave original descriptions of the macula, sensory pathways and of the substantia nigra. His non-medical contributions were diverse and included criticism of the guillotine, invention of a telegraphic system, and discoveries in palaeontology. © 2017 S. Karger AG, Basel.

Thomas H. Shepard, M.D., pioneer in embryology and teratology.

PubMed

Fantel, Alan G; Polifka, Janine E; Oakley, Godfrey P

2017-06-01

Dr. Thomas H. Shepard died on October 3, 2016 at the age of 93. He was a major figure in the fields of teratology, embryonic and fetal pathology, and pediatrics. He was beloved by his colleagues as he was by the many students and fellows whom he taught, mentored and befriended. His contributions to teratology are extraordinary and he is greatly missed. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.

The Winds of Change: Thomas Kuhn and the Revolution in the Teaching of Writing.

ERIC Educational Resources Information Center

Hairston, Maxine

1982-01-01

Uses Thomas Kuhn's hypothesis on paradigm shifts--changes in a discipline from established models to newer ones--to examine the developing shift in writing instruction from the product-oriented to the process-oriented model. (RL)

Equations of State of Elements Based on the Generalized Fermi-Thomas Theory

DOE R&D Accomplishments Database

Feynman, R. P.; Metropolis, N.; Teller, E.

1947-04-28

The Fermi-Thomas model has been used to derive the equation of state of matter at high pressures and at various temperatures. Calculations have been carried out both without and with the exchange terms. Discussion of similarity transformations lead to the virial theorem and to correlation of solutions for different Z-values.

The Oral History of Evaluation: The Professional Development of Thomas D. Cook

ERIC Educational Resources Information Center

Mark, Melvin M.; Caracelli, Valerie; McNall, Miles A.; Miller, Robin Lin

2018-01-01

Since 2003, the Oral History Project Team has conducted interviews with individuals who have made particularly noteworthy contributions to the theory and practice of evaluation. In 2013, Mel Mark, Valerie Caracelli, and Miles McNall sat with Thomas Cook in Washington, D.C., during the American Evaluation Association (AEA) annual conference. The…

A Tony Thomas-Inspired Guide to INSPIRE

DOE Office of Scientific and Technical Information (OSTI.GOV)

O'Connell, Heath B.; /Fermilab

2010-04-01

The SPIRES database was created in the late 1960s to catalogue the high energy physics preprints received by the SLAC Library. In the early 1990s it became the first database on the web and the first website outside of Europe. Although indispensible to the HEP community, its aging software infrastructure is becoming a serious liability. In a joint project involving CERN, DESY, Fermilab and SLAC, a new database, INSPIRE, is being created to replace SPIRES using CERN's modern, open-source Invenio database software. INSPIRE will maintain the content and functionality of SPIRES plus many new features. I describe this evolution frommore » the birth of SPIRES to the current day, noting that the career of Tony Thomas spans this timeline.« less

PRELAUNCH ACTIVITY (GT-6) - ASTRONAUT THOMAS P. STAFFORD - MISC.

NASA Image and Video Library

1965-12-15

S65-61806 (15 Dec. 1965) --- Astronaut Thomas P. Stafford, Gemini-6 prime crew pilot, is seen through spacecraft window as he awaits the remaining minutes of the Gemini-6 prelaunch countdown. A two-day mission in space was scheduled for astronauts Stafford and Walter M. Schirra Jr. (out of frame), command pilot. NASA successfully launched Gemini-6 from Pad 19 at 8:37 a.m. (EST) on Dec. 15, 1965. An attempt will be made to rendezvous Gemini-6 with Gemini-7. Photo credit: NASA or National Aeronautics and Space Administration

Music in a Flat World: Thomas L. Friedman's Ideas and Your Program

ERIC Educational Resources Information Center

Beckmann-Collier, Aimee

2009-01-01

In his bestseller "The World is Flat," Pulitzer-winning author Thomas L. Friedman discusses the concept of globalization and its "flattening" effect on the world. Globalization is a hugely controversial and complex issue, and the effects of globalization and the new needs of a global society may be especially important to music educators. By…

Astronauts Thomas D. Akers and Kathryn C. Thornton during WETF training

NASA Image and Video Library

1993-03-05

S93-30238 (5 Mar 1993) --- Wearing training versions of Space Shuttle Extravehicular Mobility Units (EMU), astronauts Thomas D. Akers (red stripe) and Kathryn C. Thornton use the spacious pool of the Johnson Space Center's (JSC) Weightless Environment Training Facility (WET-F) to rehearse for the Hubble Space Telescope (HST) repair mission. They are working with a full scale mockup of a solar array fixture.

Electrostatic interactions between ions near Thomas-Fermi substrates and the surface energy of ionic crystals at imperfect metals.

PubMed

Kaiser, V; Comtet, J; Niguès, A; Siria, A; Coasne, B; Bocquet, L

2017-07-01

The electrostatic interaction between two charged particles is strongly modified in the vicinity of a metal. This situation is usually accounted for by the celebrated image charges approach, which was further extended to account for the electronic screening properties of the metal at the level of the Thomas-Fermi description. In this paper we build upon a previous approach [M. A. Vorotyntsev and A. A. Kornyshev, Zh. Eksp. Teor. Fiz., 1980, 78(3), 1008-1019] and successive works to calculate the 1-body and 2-body electrostatic energy of ions near a metal in terms of the Thomas-Fermi screening length. We propose workable approximations suitable for molecular simulations of ionic systems close to metallic walls. Furthermore, we use this framework to calculate analytically the electrostatic contribution to the surface energy of a one dimensional crystal at a metallic wall and its dependence on the Thomas-Fermi screening length. These calculations provide a simple interpretation for the surface energy in terms of image charges, which allows for an estimation of the interfacial properties in more complex situations of a disordered ionic liquid close to a metal surface. The counter-intuitive outcome is that electronic screening, as characterized by a molecular Thomas-Fermi length l TF , profoundly affects the wetting of ionic systems close to a metal, in line with the recent experimental observation of capillary freezing of ionic liquids in metallic confinement.

Thomas K. Jeffers: pioneer of coccidiosis research.

PubMed

Chapman, H D

2012-01-01

Thomas K. Jeffers has made many significant contributions to our understanding of the biology of the parasite Eimeria, the cause of coccidiosis in poultry. His work has had direct practical application for the control of this widespread disease. Topics discussed include Jeffers' pioneering work concerned with genetics of the host response to infection, the nature of biological and immunological intraspecific variation, drug resistance and discovery, field surveys of resistance, and his most recognized achievement-the demonstration that the lifecycle of coccidia may be altered by artificial selection. Parasites so modified are attenuated but retain their immunogenicity, a discovery that has led to the development of live vaccines that are inherently non-pathogenic. This article provides a brief biography and describes the contributions that Jeffers has made to our knowledge of coccidiosis.

Astronomy, the Australian School Curriculum, and the Role of the Sir Thomas Brisbane Planetarium

NASA Astrophysics Data System (ADS)

Axam, A.; Rigby, M.; Orchiston, W.

2006-08-01

The Sir Thomas Brisbane Planetarium is located in the Brisbane Botanic Gardens, Mount Coot-tha, in the Brisbane suburb of Toowong, and features a Zeiss `Spacemaster RFP DP3' Planetarium projector; an observatory with a 15cm Zeiss coudé refracting telescope, a 20cm Meade LX90 Schmidt-Cassegrain telescope and a 44.4cm reflector; a mini-theatre; display galleries; and an outdoor garden area with a 4.6m diameter sundial. Since its opening in 1978, the Planetarium has played a key role in introducing astronomy to school students from throughout Australia. In this paper we summarize the Queensland primary school astronomy curriculum, and discuss ways in which the Sir Thomas Brisbane Planetarium has used tailored live planetarium programs, mini-theatre presentations, observing nights, in-house resource materials, displays and special lectures to enhance the astronomical understanding of Queensland primary school pupils and trainee teachers.

GEMINI-TITAN (GT)-9A (SUITING-UP) - ASTRONAUT THOMAS P. STAFFORD - MISC. - CAPE

NASA Image and Video Library

1966-06-03

S66-34060 (3 June 1966) --- Astronaut Thomas P. Stafford, Gemini-9A prime crew command pilot, adjusts a sleeve of his spacesuit during suiting up procedures at Launch Complex 16, Kennedy Space Center. The Gemini-9A liftoff was at 8:39 a.m. (EST), June 3, 1966. Photo credit: NASA

The nuclear Thomas-Fermi model

DOE Office of Scientific and Technical Information (OSTI.GOV)

Myers, W.D.; Swiatecki, W.J.

1994-08-01

The statistical Thomas-Fermi model is applied to a comprehensive survey of macroscopic nuclear properties. The model uses a Seyler-Blanchard effective nucleon-nucleon interaction, generalized by the addition of one momentum-dependent and one density-dependent term. The adjustable parameters of the interaction were fitted to shell-corrected masses of 1654 nuclei, to the diffuseness of the nuclear surface and to the measured depths of the optical model potential. With these parameters nuclear sizes are well reproduced, and only relatively minor deviations between measured and calculated fission barriers of 36 nuclei are found. The model determines the principal bulk and surface properties of nuclear mattermore » and provides estimates for the more subtle, Droplet Model, properties. The predicted energy vs density relation for neutron matter is in striking correspondence with the 1981 theoretical estimate of Friedman and Pandharipande. Other extreme situations to which the model is applied are a study of Sn isotopes from {sup 82}Sn to {sup 170}Sn, and the rupture into a bubble configuration of a nucleus (constrained to spherical symmetry) which takes place when Z{sup 2}/A exceeds about 100.« less

The Nuclear Thomas-Fermi Model

DOE R&D Accomplishments Database

Myers, W. D.; Swiatecki, W. J.

1994-08-01

The statistical Thomas-Fermi model is applied to a comprehensive survey of macroscopic nuclear properties. The model uses a Seyler-Blanchard effective nucleon-nucleon interaction, generalized by the addition of one momentum-dependent and one density-dependent term. The adjustable parameters of the interaction were fitted to shell-corrected masses of 1654 nuclei, to the diffuseness of the nuclear surface and to the measured depths of the optical model potential. With these parameters nuclear sizes are well reproduced, and only relatively minor deviations between measured and calculated fission barriers of 36 nuclei are found. The model determines the principal bulk and surface properties of nuclear matter and provides estimates for the more subtle, Droplet Model, properties. The predicted energy vs density relation for neutron matter is in striking correspondence with the 1981 theoretical estimate of Friedman and Pandharipande. Other extreme situations to which the model is applied are a study of Sn isotopes from {sup 82}Sn to {sup 170}Sn, and the rupture into a bubble configuration of a nucleus (constrained to spherical symmetry) which takes place when Z{sup 2}/A exceeds about 100.

Thomas J. Ahrens (1936-2010)

NASA Astrophysics Data System (ADS)

Jeanloz, Raymond

2011-03-01

Thomas J. Ahrens, a leader in the study of high-pressure shock wave and planetary impact phenomena, died at his home in Pasadena, Calif., on 24 November 2010 at the age of 74. He was the California Institute of Technology's Fletcher Jones Professor of Geophysics, emeritus since 2005 but professionally active to the end. He had been president of AGU's Tectonophysics section, editor of Journal of Geophysical Research, founding member of both the Mineral and Rock Physics and Study of the Earth's Deep Interior focus groups, and editor—more like key driving force—for AGU's Handbook of Physical Constants. Tom was a pioneer in experimental and numerical studies of the effects of projectiles hitting a target at velocities exceeding the speed of sound (hypervelocity impact), arguably the most important geophysical process in the formation, growth, and, in many cases, surface evolution of planets. As a professor at Caltech, he established the foremost university laboratory for shock wave experiments, where students and research associates from around the world pursued basic research in geophysics, planetary science, and other disciplines. Previously, high-pressure shock experiments were conducted primarily in national laboratories, where they were initially associated with the development of nuclear weapons.

Dualling Thomas: Maine College Helps Students Earn College Credit While in High School

ERIC Educational Resources Information Center

MacKenzie, Riley

2016-01-01

The Pathways Program allows juniors and seniors in high school who have a high school GPA of 3.0, a demonstrated capacity for college work, and a recommendation of the high school guidance counselor, to pursue their associate degrees at Thomas College in Waterville, Maine, while completing the requirements for their high school diploma at…

Critical Reception of Thomas Hardy's Short Stories: Finding "The Key to the Art."

ERIC Educational Resources Information Center

Heber, Janice Stewart

Thomas Hardy has received great acclaim as a poet and novelist, but his short stories have remained largely ignored with regard to the usual short story "canon." Early reviews of Hardy's stories were mixed, but after his death the tide of critical opinion tended to turn against Hardy's stories. A significant historical factor was the…

Wind Power Opportunities in St. Thomas, USVI: A Site-Specific Evaluation and Analysis

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lantz, E.; Warren, A.; Roberts, J. O.

This NREL technical report utilizes a development framework originated by NREL and known by the acronym SROPTTC to assist the U.S. Virgin Islands in identifying and understanding concrete opportunities for wind power development in the territory. The report covers each of the seven components of the SROPTTC framework: Site, Resource, Off-take, Permitting, Technology, Team, and Capital as they apply to wind power in the USVI and specifically to a site in Bovoni, St. Thomas. The report concludes that Bovoni peninsula is a strong candidate for utility-scale wind generation in the territory. It represents a reasonable compromise in terms of windmore » resource, distance from residences, and developable terrain. Hurricane risk and variable terrain on the peninsula and on potential equipment transport routes add technical and logistical challenges but do not appear to represent insurmountable barriers. In addition, integration of wind power into the St. Thomas power system will present operational challenges, but based on experience in other islanded power systems, there are reasonable solutions for addressing these challenges.« less

KENNEDY SPACE CENTER, FLA. - In the Orbiter Processing Facility, STS-114 Mission Specialist Andy Thomas takes a close look at the some of the tiles underneath Atlantis. Thomas is a new addition to the mission crew. The STS-114 crew is at KSC to take part in crew equipment and orbiter familiarization.

NASA Image and Video Library

2003-10-30

KENNEDY SPACE CENTER, FLA. - In the Orbiter Processing Facility, STS-114 Mission Specialist Andy Thomas takes a close look at the some of the tiles underneath Atlantis. Thomas is a new addition to the mission crew. The STS-114 crew is at KSC to take part in crew equipment and orbiter familiarization.

An assessment of nutrients and sedimentation in the St. Thomas East End Reserves, US Virgin Islands.

PubMed

Pait, Anthony S; Galdo, Francis R; Ian Hartwell, S; Apeti, Dennis A; Mason, Andrew L

2018-04-09

Nutrients and sedimentation were monitored for approximately 2 years at six sites in the St. Thomas East End Reserves (STEER), St. Thomas, USVI, as part of a NOAA project to develop an integrated environmental assessment. Concentrations of ammonium (NH 4 + ) and dissolved inorganic nitrogen (DIN) were higher in Mangrove Lagoon and Benner Bay in the western portion of STEER than in the other sites further east (i.e., Cowpet Bay, Rotto Cay, St. James, and Little St. James). There was no correlation between rainfall and nutrient concentrations. Using a set of suggested nutrient thresholds that have been developed to indicate the potential for the overgrowth of algae on reefs, approximately 60% of the samples collected in STEER were above the threshold for orthophosphate (HPO 4 = ), while 55% of samples were above the DIN threshold. Benner Bay had the highest sedimentation rate of any site monitored in STEER, including Mangrove Lagoon. There was also an east to west and a north to south gradient in sedimentation, indicative of higher sedimentation rates in the western, more populated areas surrounding STEER, and sites closer to the shore of the main island of St. Thomas. Although none of the sites had a mean or average sedimentation rate above a suggested sedimentation threshold, the mean sedimentation rate in Benner Bay was just below the threshold.

Time-Dependent Thomas-Fermi Approach for Electron Dynamics in Metal Clusters

NASA Astrophysics Data System (ADS)

Domps, A.; Reinhard, P.-G.; Suraud, E.

1998-06-01

We propose a time-dependent Thomas-Fermi approach to the (nonlinear) dynamics of many-fermion systems. The approach relies on a hydrodynamical picture describing the system in terms of collective flow. We investigate in particular an application to electron dynamics in metal clusters. We make extensive comparisons with fully fledged quantal dynamical calculations and find overall good agreement. The approach thus provides a reliable and inexpensive scheme to study the electronic response of large metal clusters.

The Reverend Thomas Jefferson Bowen: An Introductory Background to His Linguistic Works, 1850-1856

ERIC Educational Resources Information Center

Awoniyi, Timothy A.

1974-01-01

A historical narrative background for the linguistic works of Thomas Jefferson Bowen, an American missionary who was the first non-Nigerian to publish a grammar of Yoruba (1858). The author points up a need for further scholarly review of Bowen's pioneering work and contribution to Yoruba studies. (JT)

Molecular characterization and experimental host range of an isolate of Wissadula golden mosaic St. Thomas virus.

PubMed

Collins, A M; Mujaddad-ur-Rehman, Malik; Brown, J K; Reddy, C; Wang, A; Fondong, V; Roye, M E

2009-12-01

Partial genome segments of a begomovirus were previously amplified from Wissadula amplissima exhibiting yellow-mosaic and leaf-curl symptoms in the parish of St. Thomas, Jamaica and this isolate assigned to a tentative begomovirus species, Wissadula golden mosaic St. Thomas virus. To clone the complete genome of this isolate of Wissadula golden mosaic St. Thomas virus, abutting primers were designed to PCR amplify its full-length DNA-A and DNA-B components. Sequence analysis of the complete begomovirus genome obtained, confirmed that it belongs to a distinct begomovirus species and this isolate was named Wissadula golden mosaic St. Thomas virus-[Jamaica:Albion:2005] (WGMSTV-[JM:Alb:05]). The genome of WGMSTV-[JM:Alb:05] is organized similar to that of other bipartite Western Hemisphere begomoviruses. Phylogenetic analyses placed the genome components of WGMSTV-[JM:Alb:05] in the Abutilon mosaic virus clade and showed that the DNA-A component is most closely related to four begomovirus species from Cuba, Tobacco leaf curl Cuba virus, Tobacco leaf rugose virus, Tobacco mottle leaf curl virus, and Tomato yellow distortion leaf virus. The putative Rep-binding-site motif in the common region of WGMSTV-[JM:Alb:05] was observed to be identical to that of Chino del tomate virus-Tomato [Mexico:Sinaloa:1983], Sida yellow mosaic Yucatan virus-[Mexico:Yucatan:2005], and Tomato leaf curl Sinaloa virus-[Nicaragua:Santa Lucia], suggesting that WGMSTV-[JM:Alb:05] is capable of forming viable pseudo-recombinants with these begomoviruses, but not with other members of the Abutilon mosaic virus clade. Biolistic inoculation of test plant species with partial dimers of the WGMSTV-[JM:Alb:05] DNA-A and DNA-B components showed that the virus was infectious to Nicotiana benthamiana and W. amplissima and the cultivated species Phaseolus vulgaris (kidney bean) and Lycopersicon esculentum (tomato). Infected W. amplissima plants developed symptoms similar to symptoms observed under field

Water wells on St. Thomas, U.S. Virgin Islands

USGS Publications Warehouse

Steiger, J.I.; Kessler, Richard

1993-01-01

This report is a compilation of well-inventory data collected from December 1989 to December 1990 on St. Thomas, U.S. Virgin Islands from 367 wells. The report includes well locations on 1982, 7.5 minute series, USGS topographic maps, which are published to scale, and tables of selected well data. The report includes the following well information; well name, U.S. Geological Survey Ground Water Site Identification number, use of water, year well constructed, reported depth of well, measured depth of well, casing diameter, type of well finish and finish interval, land surface altitude of well, depth to water below land surface, date water level measured, and well yield. (USGS)

Alexander Thomas Augusta--physician, teacher and human rights activist.

PubMed

Butts, Heather M

2005-01-01

Commissioned surgeon of colored volunteers, April 4, 1863, with the rank of Major. Commissioned regimental surgeon on the 7th Regiment of U.S. Colored Troops, October 2, 1863. Brevet Lieutenant Colonel of Volunteers, March 13, 1865, for faithful and meritorious services--mustered out October 13, 1866. So reads the tombstone at Arlington National Cemetery of Alexander Thomas Augusta, the first black surgeon commissioned in the Union Army during the Civil War and the first black officer-rank soldier to be buried at Arlington Cemetery. He was also instrumental in founding the institutions that later became the hospital and medical college of Howard University and the National Medical Association.

78 FR 65511 - Death of Thomas S. Foley Former Speaker of the House of Representatives

Federal Register 2010, 2011, 2012, 2013, 2014

2013-10-31

... Vol. 78 Thursday, No. 211 October 31, 2013 Part IV The President Proclamation 9046--Death of Thomas S. Foley Former Speaker of the House of Representatives #0; #0; #0; Presidential Documents #0; #0...; #0; #0;Title 3-- #0;The President [[Page 65513

77 FR 51564 - Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-08-24

... the human remains was made by the Burke Museum professional staff in consultation with representatives... Inventory Completion: Thomas Burke Memorial Washington State Museum, University of Washington, Seattle, WA... State Museum (Burke Museum), University of Washington, has completed an inventory of human remains, in...

75 FR 36672 - Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-06-28

... made by the Burke Museum professional staff in consultation with representatives of the Lummi Tribe of... Memorial Washington State Museum, University of Washington, Seattle, WA AGENCY: National Park Service... of the Thomas Burke Memorial Washington State Museum (Burke Museum), University of Washington...

78 FR 59964 - Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-09-30

... Accn. 3183). In 1974, the Burke Museum staff legally transferred elements associated with the... 1939 (Burke Accn. 3101). In 1974, the Burke Museum staff legally transferred elements associated with....R50000] Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of...

78 FR 45958 - Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-07-30

... associated funerary objects was made by the Burke Museum professional staff in consultation with....R50000] Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of... Memorial Washington State Museum, University of Washington (Burke Museum), has completed an inventory of...

Play as a Basic Pathway to the Self: An Interview with Thomas S. Henricks

ERIC Educational Resources Information Center

American Journal of Play, 2015

2015-01-01

Thomas S. Henricks is the J. Earl Danieley Professor of Sociology and Distinguished University Professor at Elon University. Since receiving his doctorate in sociology at the University of Chicago, Henricks has investigated the sociology of sports from the fandom of modern American professional wrestling to the relationship between sports and…

Elementary Analysis of the Special Relativistic Combination of Velocities, Wigner Rotation and Thomas Precession

ERIC Educational Resources Information Center

O'Donnell, Kane; Visser, Matt

2011-01-01

The purpose of this paper is to provide an elementary introduction to the qualitative and quantitative results of velocity combination in special relativity, including the Wigner rotation and Thomas precession. We utilize only the most familiar tools of special relativity, in arguments presented at three differing levels: (1) utterly elementary,…

Discussion on the energy content of the galactic dark matter Bose-Einstein condensate halo in the Thomas-Fermi approximation

DOE Office of Scientific and Technical Information (OSTI.GOV)

De Souza, J.C.C.; Pires, M.O.C., E-mail: jose.souza@ufabc.edu.br, E-mail: marcelo.pires@ufabc.edu.br

We show that the galactic dark matter halo, considered composed of an axionlike particles Bose-Einstein condensate [6] trapped by a self-graviting potential [5], may be stable in the Thomas-Fermi approximation since appropriate choices for the dark matter particle mass and scattering length are made. The demonstration is performed by means of the calculation of the potential, kinetic and self-interaction energy terms of a galactic halo described by a Boehmer-Harko density profile. We discuss the validity of the Thomas-Fermi approximation for the halo system, and show that the kinetic energy contribution is indeed negligible.

Physician/chemist/geologist: Charles Thomas Jackson's life of conflict and controversy

USGS Publications Warehouse

Landa, E.R.

1995-01-01

After a brief medical career, Charles Thomas Jackson (1805-1880) began work as a consulting chemist and geologist in Boston. He serves as State Geologist in Maine, Rhode Island, and New Hampshire from 1837 to 1884, and completed geological surveys of those States. In 1847, he was appointed United States Geologist to undertake a survey of the public lands of the Lake Superior region of Michigan. This survey was beset by strife, and Jackson was forced to resign in 1849. -from Author

Thomas Merton Goes to Class: Pedagogy on the Borders of the Short Story

ERIC Educational Resources Information Center

Callaghan, Michael J.

2011-01-01

Our thesis is more finely tuned to Thomas Merton (1915-68) the writer, more specifically, the poet/artist/writer and thinker. These are the components of the "Merton" voice. Merton senses the quality of innocence as the "sine qua non" of the poet or writer's vocation: "His art depends on an ingrained innocence which he would lose in business, in…

78 FR 11675 - Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-19

... A detailed assessment of the human remains was made by the Burke Museum professional staff in... Inventory Completion: Thomas Burke Memorial Washington State Museum, University of Washington, Seattle, WA... State Museum (Burke Museum) has completed an inventory of human remains, in consultation with the...

77 FR 46117 - Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-08-02

... Museum professional staff in consultation with representatives of the Coeur D'Alene Tribe of the Coeur D... Inventory Completion: Thomas Burke Memorial Washington State Museum, University of Washington, Seattle, WA... State Museum (Burke Museum) has completed an inventory of human remains and associated funerary objects...

78 FR 59955 - Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-09-30

.... Consultation A detailed assessment of the human remains was made by the Burke Museum professional staff in....R50000] Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of... Memorial Washington State Museum, University of Washington (Burke Museum), has completed an inventory of...

STS-114: Crew Interviews 1. Andy Thomas 2. Steve Robinson

NASA Technical Reports Server (NTRS)

2005-01-01

STS-114 Mission Specialists, Andy Thomas and Steve Robinson, are seen in this pre-flight interview. Andy Thomas begins by talking about his interest in spaceflight as a young boy growing up in Australia. He expresses that the chances of an Australian boy studying to eventually become an astronaut was very remote. His Mechanical Engineering Degree in Australia and a Doctorate enabled him to acquire unique skills to come to the United States to work for Lockheed Martin. On the topic of return to flight, he reflects on experiences that he had working with the Michael Anderson and Kalpana Chawla of the ill-fated Space Shuttle Columbia. He also talks about the safety of the Space Shuttle Discovery and repairs to its Thermal Protection system. He explains in detail the Logistics Flight (LF) 1, spacewalks, Multipurpose Logistics Module (MPLM) and the External Stowage Platform (ESP)-2. Steve Robinson expresses that he had many interests as a child and becoming an astronaut was one of them. He was fascinated with things that fly and wanted to find out how they flew. He also designed hang gliders as a teenager. He expresses how his family feels about the risky business of spaceflight. He talks about how the space shuttle discovery crew will remember the Columbia crew by including seven stars on their patch so that they can bring them into orbit and then back home. Robinson also talks about his primary job, and the spacewalks that he and Soichi Noguchi will be performing.

78 FR 64006 - Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-10-25

... inventory of human remains under the control of the Burke Museum. The human remains were removed from Island....R50000] Notice of Inventory Completion: Thomas Burke Memorial Washington State Museum, University of... Memorial Washington State Museum, University of Washington (Burke Museum), has completed an inventory of...

Astronaut Thomas Jones anchored to bunk facility while working on computer

NASA Image and Video Library

1994-04-14

STS059-10-011 (9-20 April 1994) --- Astronaut Thomas D. Jones appears to have climbed out of bed right into his work in this onboard 35mm frame. Actually, Jones had anchored himself in the bunk facility while working on one of the onboard computers which transfered data to the ground via modem. The mission specialist was joined in space by five other NASA astronauts for a week and a half of support to the Space Radar Laboratory (SRL-1)/STS-59 mission.

Thomas Graham, Jr.: Preparing for the 1995 NPT Conference

DOE Office of Scientific and Technical Information (OSTI.GOV)

NONE

1994-07-01

With attention increasingly focused on the critical nuclear Non-Proliferation Treaty (NPT) extension and review conference beginning in April 1995, Thomas Graham, Jr. plays a key role in negotiations to gain indefinite treaty extension during voting at the conference. He has been Arms Control and Disarmament Agency (ACDA) general counsel since 1983, served as acting director from January to November 1992 and since November 23, 1992, has been acting deputy director. Among other assignments, he served as legal advisor to the US SALT II delegation and senior ACDA representative to the US Intermediate-Range Nuclear Forces delegation in 1981-82. He was interviewedmore » May 26 by Jack Mendelsohn and Jon B. Wolfsthal.« less

Constraints on the nuclear equation of state from nuclear masses and radii in a Thomas-Fermi meta-modeling approach

NASA Astrophysics Data System (ADS)

Chatterjee, D.; Gulminelli, F.; Raduta, Ad. R.; Margueron, J.

2017-12-01

The question of correlations among empirical equation of state (EoS) parameters constrained by nuclear observables is addressed in a Thomas-Fermi meta-modeling approach. A recently proposed meta-modeling for the nuclear EoS in nuclear matter is augmented with a single finite size term to produce a minimal unified EoS functional able to describe the smooth part of the nuclear ground state properties. This meta-model can reproduce the predictions of a large variety of models, and interpolate continuously between them. An analytical approximation to the full Thomas-Fermi integrals is further proposed giving a fully analytical meta-model for nuclear masses. The parameter space is sampled and filtered through the constraint of nuclear mass reproduction with Bayesian statistical tools. We show that this simple analytical meta-modeling has a predictive power on masses, radii, and skins comparable to full Hartree-Fock or extended Thomas-Fermi calculations with realistic energy functionals. The covariance analysis on the posterior distribution shows that no physical correlation is present between the different EoS parameters. Concerning nuclear observables, a strong correlation between the slope of the symmetry energy and the neutron skin is observed, in agreement with previous studies.

Astronauts Mario Runco, Jr. and Andrew S. W. Thomas, both mission specialists, pose for photo while

NASA Technical Reports Server (NTRS)

1996-01-01

STS-77 ESC VIEW --- Astronauts Mario Runco, Jr. and Andrew S. W. Thomas, both mission specialists, pose for photo while in the mid-deck of the Earth-orbiting Space Shuttle Endeavour. The scene was recorded with an Electronic Still Camera (ESC).

"Mens Sana in Corpore Sano": Human Values in Thomas Wilson's "The Arte of Rhetorique."

ERIC Educational Resources Information Center

Luehring, Janet

In 1553 the work that is touted as the first complete book written in English on rhetoric was published, Thomas Wilson's "Arte of Rhetorique." It became so popular it enjoyed eight printings within its century. Wilson was not a person to translate and read just for knowledge; he believed that knowledge should be imparted to the general…

[Disease and identity--a study of The magic mountain by Thomas Mann].

PubMed

Hofmann, Bjørn

2003-12-23

Disease is more than dysfunctional organs, morphological abnormalities and genetic divergence. It is also about existence, self-conception and social identity. Disease changes us as persons, but how this happens is usually not discussed in medical textbooks. However, literature appears to be rich in descriptions of these perspectives. This article explores The magic mountain by Thomas Mann to elucidate the relationship between personal identity and disease. I will argue that such knowledge is important to modern clinical practice.

ASTRONAUT THOMAS P. STAFFORD - TRAINING (WATER EGRESS) (GEMINI-TITAN [GT]-6 PILOT)(HEAD SHOT) - GULF

NASA Image and Video Library

1965-08-23

S65-43971 (23 Aug. 1965) --- Astronaut Thomas P. Stafford, Gemini-6 prime crew pilot, is pictured onboard the NASA Motor Vessel Retriever in the Gulf of Mexico during water egress training. Astronaut Walter M. Schirra Jr. (out of frame), prime crew command pilot, also took part in the training.

GEMINI-TITAN (GT)-9 COMMAND PILOT (FAMILIARIZATION) - ASTRONAUT THOMAS P. STAFFORD - TRAINING - MCDONNELL AIRCRAFT CORP. (MDAC), MO

NASA Image and Video Library

1966-02-08

S66-23592 (8 Feb. 1966) --- Astronaut Thomas P. Stafford, command pilot of the Gemini-9 prime crew, undergoes familiarization training with the Gemini-9 spacecraft at the McDonnell plant in St. Louis. Photo credit: NASA

Thomas Jefferson National Accelerator Facility

DOE Office of Scientific and Technical Information (OSTI.GOV)

Grames, Joseph; Higinbotham, Douglas; Montgomery, Hugh

The Thomas Jefferson National Accelerator Facility (Jefferson Lab) in Newport News, Virginia, USA, is one of ten national laboratories under the aegis of the Office of Science of the U.S. Department of Energy (DOE). It is managed and operated by Jefferson Science Associates, LLC. The primary facility at Jefferson Lab is the Continuous Electron Beam Accelerator Facility (CEBAF) as shown in an aerial photograph in Figure 1. Jefferson Lab was created in 1984 as CEBAF and started operations for physics in 1995. The accelerator uses superconducting radio-frequency (srf) techniques to generate high-quality beams of electrons with high-intensity, well-controlled polarization. Themore » technology has enabled ancillary facilities to be created. The CEBAF facility is used by an international user community of more than 1200 physicists for a program of exploration and study of nuclear, hadronic matter, the strong interaction and quantum chromodynamics. Additionally, the exceptional quality of the beams facilitates studies of the fundamental symmetries of nature, which complement those of atomic physics on the one hand and of high-energy particle physics on the other. The facility is in the midst of a project to double the energy of the facility and to enhance and expand its experimental facilities. Studies are also pursued with a Free-Electron Laser produced by an energy-recovering linear accelerator.« less

Green leviathan? Thomas hobbes, joel bakan and Arnold schwarzenegger.

PubMed

Evans, Robert G

2007-02-01

Thomas Hobbes postulates that men are driven by "a perpetual and restless desire of power after power, that ceaseth only in death." The miserable consequences of this drive for power and the competing "desire of ease and sensual delight" and "fear of death and wounds" lead them to establish and obey. Substituting "profit" for "power" yields a description of the modern corporation, but without the desires or fears of natural persons. Such "unnatural persons" lack the Hobbesian ground of obligation, yet have appropriated the privileges and protections of natural persons. They challenge or undermine the sovereign wherever it limits their profits. Governor Schwarzenegger's re-election in California, however, on a strong anti-CO(2) program, suggests a willingness by threatened natural persons to re-empower Leviathan.

"Thoughts across My Corpus Callosum": What Lewis Thomas's Essays Can Teach Students about Writing Well.

ERIC Educational Resources Information Center

White, Fred D.

As Lewis Thomas has maintained, much of today's public anxiety about science is the apprehension that the whole is being overlooked by an endless, obsessive preoccupation with the parts, and this is a suitable analogy for composition teaching. Students and teachers alike tend to fret endlessly over minute details of writing, like grammar,…

Thomas Midgley, Jr., and the Development of New Substances: A Case Study for Chemical Educators

ERIC Educational Resources Information Center

Viana, Hélio Elael Bonini; Porto, Paulo Alves

2013-01-01

This paper presents a history of chemistry case study focusing on selected aspects of the work of American engineer Thomas Midgley, Jr. (1889-1944): the development of tetraethyl lead as an antiknock gasoline additive and of chlorofluorocarbons (CFCs) as fluids for refrigeration devices. One general aim of this case study is to display the complex…

As Luck Would Have It: Thomas Hardy's "Bildungsroman" on Leading a Human Life

ERIC Educational Resources Information Center

Laverty, Megan Jane

2014-01-01

In this essay, I demonstrate the value of the Bildungsroman for philosophy of education on the grounds that these narratives raise and explore educational questions. I focus on a short story in the Bildungsroman tradition, Thomas Hardy's "A Mere Interlude". This story describes the maturation of its heroine by narrating a series of…

A Critical Feminist and Race Critique of Thomas Piketty's "Capital in the Twenty-First Century"

ERIC Educational Resources Information Center

Moeller, Kathryn

2016-01-01

Thomas Piketty's "Capital in the Twenty-first Century" documents the foreboding nature of rising wealth inequality in the twenty-first century. In an effort to promote a more just and democratic global society and rein in the unfettered accumulation of wealth by the few, Piketty calls for a global progressive annual tax on corporate…

Charting the Course: Four Years of the Thomas W. Payzant School on the Move Prize

ERIC Educational Resources Information Center

d'Entremont, Chad; Norton, Jill; Bennett, Michael; Piazza, Peter

2012-01-01

Since 2006, the Thomas W. Payzant School on the Move (SOM) Prize has been awarded annually to a Boston public school that has made significant progress in improving student achievement. This case study identifies the structures and strategies that best serve students in prizewinning schools, provides a profile of each of the four winning schools…

The light bulb, cystoscopy, and Thomas Alva Edison.

PubMed

Moran, Michael E

2010-09-01

Thomas Alva Edison was an icon of American achievement who literally invented the 20th century. Although best known as the inventor of the electric light bulb, the phonograph, and motion pictures, he also left a lasting legacy via peripheral developmental applications, such as endoscopes. A review of published urologic writings about incandescent cystoscopes was cross-referenced to writings about or from Edison. Important events that allowed transference of technology from the Edison laboratory to clinical practice were emphasized. Edison was born in 1847 while Lincoln was serving in Congress; he died in 1931 when Hoover struggled with the Great Depression. Edison's life spanned the formative period of America that Henry Adams called the "coming of age." Edison received a Sprengel vacuum device in late 1879, and as usual, he was able to tweak the machine to better performance. For 5 days in October, 16 to 21, he improved the vacuum from 1/100,000 to 1/1,000,000 atm, and his first incandescent bulb burned softly. On December 21, 1879, he leaked the story to N.Y. Herald journalist Marshall Fox, and the world was notified of the light bulb. Special Christmas light visits started in Menlo Park just 4 days later. Edison patented the screw cap for easy changes, and the first bulbs sold for 40 cents (cost $1.40). 100,000 bulbs sold in 1882, 4 million by 1892, and 45 million in 1903. Immediately, competitors and specialty manufacturers entered the market. Dr. Henry Koch and Charles Preston in Rochester, N.Y., developed a smaller, low amperage bulb that could be fitted to medical devices. No discussion of electricity and modern applications would be complete without some discussion of Thomas Alva Edison and his sentinel contributions. The first church, post office, and ship were illuminated in 1892. The first hotel, theater, and electric sign were in 1893. The rapidity of dispersal and secondary applications of Edison's inventions is typified by the rise of cystoscopes

On Raviart-Thomas and VMS formulations for flow in heterogeneous materials.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Turner, Daniel Zack

It is well known that the continuous Galerkin method (in its standard form) is not locally conservative, yet many stabilized methods are constructed by augmenting the standard Galerkin weak form. In particular, the Variational Multiscale (VMS) method has achieved popularity for combating numerical instabilities that arise for mixed formulations that do not otherwise satisfy the LBB condition. Among alternative methods that satisfy local and global conservation, many employ Raviart-Thomas function spaces. The lowest order Raviart-Thomas finite element formulation (RT0) consists of evaluating fluxes over the midpoint of element edges and constant pressures within the element. Although the RT0 element posesmore » many advantages, it has only been shown viable for triangular or tetrahedral elements (quadrilateral variants of this method do not pass the patch test). In the context of heterogenous materials, both of these methods have been used to model the mixed form of the Darcy equation. This work aims, in a comparative fashion, to evaluate the strengths and weaknesses of either approach for modeling Darcy flow for problems with highly varying material permeabilities and predominantly open flow boundary conditions. Such problems include carbon sequestration and enhanced oil recovery simulations for which the far-field boundary is typically described with some type of pressure boundary condition. We intend to show the degree to which the VMS formulation violates local mass conservation for these types of problems and compare the performance of the VMS and RT0 methods at boundaries between disparate permeabilities.« less

Exceptional Scholarship and Democratic Agendas: Interviews with John Goodlad, John Hoyle, Joseph Murphy, and Thomas Sergiovanni

ERIC Educational Resources Information Center

Mullen, Carol A.

2006-01-01

This portraiture study of four exceptional scholars in education--John Goodlad, John Hoyle, Joseph Murphy, and Thomas Sergiovanni--provides insight into their scholarly work and life habits, direction and aspirations, assessment and analysis of major trends in the profession, and advice for aspiring leaders and academics. Telephone interviews with…

Exceptional Scholarship and Democratic Agendas: Interviews with John Goodlad, John Hoyle, Joseph Murphy, and Thomas Sergiovanni

ERIC Educational Resources Information Center

Mullen, Carol A.

2009-01-01

This portraiture study of four exceptional scholars in education--John Goodlad, John Hoyle, Joseph Murphy, and Thomas Sergiovanni--provides insight into their scholarly work and life habits, direction and aspirations, assessment and analysis of major trends in the profession, and advice for aspiring leaders and academics. Telephone interviews with…

Distribution of eigenfrequencies for oscillations of the ground state in the Thomas-Fermi limit

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kevrekidis, P. G.; Pelinovsky, D. E.

In this work, we present a systematic derivation of the distribution of eigenfrequencies for oscillations of the ground state of a repulsive Bose-Einstein condensate in the semi-classical (Thomas-Fermi) limit. Our calculations are performed in one, two, and three-dimensional settings. Connections with the earlier work of Stringari, with numerical computations, and with theoretical expectations for invariant frequencies based on symmetry principles are also given.

GEMINI-TITAN (GT)-9 PREFLIGHT ACTIVITY - ASTRONAUT THOMAS P. STAFFORD - MISC. - KSC

NASA Image and Video Library

1969-01-21

S66-32044 (17 May 1966) --- Astronauts Eugene A. Cernan (left), pilot, and Thomas P. Stafford, command pilot, discuss the postponed Gemini-9 mission just after egressing their spacecraft in the white room atop Pad 19. The Agena Target Vehicle failed to achieve orbit, causing a termination of the mission. The spaceflight (to be called Gemini-9A) has been rescheduled for May 31. A Gemini Augmented Target Docking Adapter will be used as the rendezvous and docking vehicle for the Gemini-9 spacecraft. Photo credit: NASA

Thomas Edison's Inventions in the 1900s and Today: From "New" to You! [Lesson Plan].

ERIC Educational Resources Information Center

2002

The purpose of this lesson is to familiarize students with life and technology around 1900 so that they can better understand how Thomas Edison and his many inventions influenced both. Without some understanding of Edison's time, it is unclear just how significant an impact Edison had on the world, both then and now. While the incandescent light…

Statement of Facts for 1977 City-Wide Mock Trial Competitions. Walker Thomas v. Sam Nomad.

ERIC Educational Resources Information Center

National Inst. for Citizen Education in the Law, Washington, DC.

Prepared by the District of Columbia Street Law Project for its annual city-wide mock trial competition, this instructional handout provides material for a civil case over an automobile accident. Walker Thomas is suing Sam Nomad for damages that resulted from a collision, for which both parties blame the other. The handout clarifies the laws and…

EAARL topography: Thomas Stone National Historic Site

USGS Publications Warehouse

Brock, John C.; Wright, C. Wayne; Patterson, Matt; Nayegandhi, Amar; Patterson, Judd

2007-01-01

This Web site contains Lidar-derived topography (first return and bare earth) maps and GIS files for Thomas Stone National Historic Site in Maryland. These Lidar-derived topography maps were produced as a collaborative effort between the U.S. Geological Survey (USGS) Coastal and Marine Geology Program, FISC St. Petersburg, the National Park Service (NPS) South Florida/Caribbean Network Inventory and Monitoring Program, and the National Aeronautics and Space Administration (NASA) Wallops Flight Facility. One objective of this research is to create techniques to survey coral reefs and barrier islands for the purposes of geomorphic change studies, habitat mapping, ecological monitoring, change detection, and event assessment. As part of this project, data from an innovative instrument under development at the NASA Wallops Flight Facility, the NASA Experimental Airborne Advanced Research Lidar (EAARL) are being used. This sensor has the potential to make significant contributions in this realm for measuring subaerial and submarine topography wthin cross-environment surveys. High spectral resolution, water-column correction, and low costs were found to be key factors in providing accurate and affordable imagery to costal resource managers.

Thomas Grisso: Award for Distinguished Professional Contributions to Applied Research.

PubMed

2014-11-01

The Award for Distinguished Professional Contributions to Applied Research is given to a psychologist whose research has led to important discoveries or developments in the field of applied psychology. To be eligible, this research should have led to innovative applications in an area of psychological practice, including but not limited to assessment, consultation, instruction, or intervention (either direct or indirect). The 2014 recipient is Thomas Grisso. Grisso "has made seminal contributions to the field of forensic psychology and psychiatry through his internationally renowned program of research, which has directly impacted juvenile justice reform worldwide." Grisso's award citation, biography, and a selected bibliography are presented here. PsycINFO Database Record (c) 2014 APA, all rights reserved.

Electrical Connections: Letters to Thomas Edison in Response to His Claim of Solving Incandescent Lighting, 1878.

ERIC Educational Resources Information Center

Bazerman, Charles

1994-01-01

Discusses the way in which letters sent to Thomas Edison following the report that he had solved the problem of incandescent lighting reveal the many discursive worlds that Edison's work touched. Claims these letters indicate how a technological accomplishment is also a multiple, complex social, and communicative accomplishment, creating place and…

The Urban Superintendency and the Depression: The Case of Thomas Warrington Gosling, Akron, Ohio: 1928-34.

ERIC Educational Resources Information Center

Hinson, Gregory L.; Dye, Charles M.

The case study of an Ohio school superintendent's experiences during the depression illustrates how political, social, and economic events can affect an educational system. Dr. Thomas Warrington Gosling was named superintendent of Akron schools in 1928, following resignation of the previous superintendent as a consequence of turmoil on the Board…

Tertiary volcanic rocks and uranium in the Thomas Range and northern Drum Mountains, Juab County, Utah

USGS Publications Warehouse

Lindsey, David A.

1982-01-01

The Thomas Range and northern Drum Mountains have a history of volcanism, faulting, and mineralization that began about 42 m.y. (million years) ago. Volcanic activity and mineralization in the area can be divided into three stages according to the time-related occurrence of rock types, trace-element associations, and chemical composition of mineral deposits. Compositions of volcanic rocks changed abruptly from rhyodacite-quartz latite (42-39 m.y. ago) to rhyolite (38-32 m.y. ago) to alkali rhyolite (21 and 6-7 m.y. ago); these stages correspond to periods of chalcophile and siderophile metal mineralization, no mineralization(?), and lithophile metal mineralization, respectively. Angular unconformities record episodes of cauldron collapse and block faulting between the stages of volcanic activity and mineralization. The youngest angular unconformity formed between 21 and 7 m.y. ago during basin-and-range faulting. Early rhyodacite-quartz latite volcanism from composite volcanoes and fissures produced flows, breccias, and ash-flow tuff of the Drum Mountains Rhyodacite and Mt. Laird Tuff. Eruption of the Mt. Laird Tuff about 39 m.y. ago from an area north of Joy townsite was accompanied by collapse of the Thomas caldera. Part of the roof of the magma chamber did not collapse, or the magma was resurgent, as is indicated by porphyry dikes and plugs in the Drum Mountains. Chalcophile and siderophile metal mineralization, resulting in deposits of copper, gold, and manganese, accompanied early volcanism. Te middle stage of volcanic activity was characterized by explosive eruption of rhyolitic ash-flow tuffs and collapse of the Dugway Valley cauldron. Eruption of the Joy Tuff 38 m.y. ago was accompanied by subsidence of this cauldron and was followed by collapse and sliding of Paleozoic rocks from the west wall of the cauldron. Landslides in The Dell were covered by the Dell Tuff, erupted 32 m.y. ago from an unknown source to the east. An ash flow of the Needles Range

Thomas Edison State College and Colorado State University: Using Cutting-Edge Technology to Enhance CE Unit Success

ERIC Educational Resources Information Center

van Zyl, Henry; Powell, Albert, Jr.

2012-01-01

Thomas Edison State College (TESC) and Colorado State University (CSU) offer significant contrasts in institutional culture, student demographics, faculty and institutional priorities and approaches to distance education course development and delivery. This article offers case studies showing that widely disparate program design and delivery…

The Dispute over Nuclear Fission.

ERIC Educational Resources Information Center

Sime, Ruth Lewin

1996-01-01

Reveals the stormy relationship and ongoing controversy surrounding the scientific collaboration of Otto Hahn and Lise Meitner. Discusses the controversial 1944 Nobel Prize award to Hahn (ignoring the equal contribution of Meitner), the reaction of the scientific community, and the post-war years of both Meitner and Hahn. (MJP)

A Tribute to Thomas P. Carter (1927-2001): Activist Scholar and Pioneer in Mexican American Education

ERIC Educational Resources Information Center

Valencia, Richard R.

2006-01-01

This article presents a testimony to the late Dr. Thomas P. Carter. Well known for his classic (1970) book, Mexican Americans in School: A History of Educational Neglect, Carter was an activist scholar and pioneer in Mexican American education. His considerable interactions with South Americans, Mexicans, and Mexican Americans served as a…

(GEMINI-TITAN [GT]-6 PREFLIGHT ACTIVITY) (PILOT INSIDE SPACECRAFT) - ASTRONAUT THOMAS P. STAFFORD - MISC. - CAPE

NASA Image and Video Library

1965-12-15

S65-59961 (15 Dec. 1965) --- Astronaut Thomas P. Stafford, pilot, is pictured in the Gemini-6 spacecraft in the White Room atop Pad 19 prior to the closing of the hatches during the Gemini-6 prelaunch countdown. In the background (partially out of view) is astronaut Walter M. Schirra Jr., command pilot. Photo credit: NASA or National Aeronautics and Space Administration

Impeaching G. Thomas Porteous, Jr., judge of the United States District Court for the Eastern District of Louisiana, for high crimes and misdemeanors.

THOMAS, 111th Congress

Rep. Conyers, John, Jr. [D-MI-14

2010-01-21

Senate - 12/08/2010 The motion to forever disqualify G. Thomas Porteous, Jr. to hold and enjoy any office of honor, trust, or profit under the United States agreed to by Yea-Nay Vote. 94 - 2. Record Vote Number: 265. (All Actions) Notes: Note: On 3/11/2010, the House agreed to the resolution of impeachment. On 12/8/2010, the Senate adjudged G. Thomas Porteous, Jr., guilty as charged in the four Articles of the Impeachment. Tracker: This bill has the status Agreed to in HouseHere are the steps for Status of Legislation:

Double-wells and double-layers in dusty Fermi-Dirac plasmas: Comparison with the semiclassical Thomas-Fermi counterpart

DOE Office of Scientific and Technical Information (OSTI.GOV)

Akbari-Moghanjoughi, M.

Based on the quantum hydrodynamics (QHD) model, a new relationship between the electrostatic-potential and the electron-density in the ultradense plasma is derived. Propagation of arbitrary amplitude nonlinear ion waves is, then, investigated in a completely degenerate dense dusty electron-ion plasma, using this new energy relation for the relativistic electrons, in the ground of quantum hydrodynamics model and the results are compared to the case of semiclassical Thomas-Fermi dusty plasma. Based on the standard pseudopotential approach, it is remarked that the Fermi-Dirac plasma, in contrast to the Thomas-Fermi counterpart, accommodates a wide variety of nonlinear excitations such as positive/negative-potential ion solitarymore » and periodic waves, double-layers, and double-wells. It is also remarked that the relativistic degeneracy parameter which relates to the mass-density of plasma has significant effects on the allowed matching-speed range in Fermi-Dirac dusty plasmas.« less

Astronaut Thomas P. Stafford - Training - Parasail - Gemini-Titan (GT)-5 Pilot - Galveston Bay, TX

NASA Image and Video Library

1965-08-23

S65-51948 (23 Aug. 1965) --- Astronaut Thomas P. Stafford, Gemini-6 prime crew pilot, stands ready to take part in parasail training in Galveston Bay, Texas. Wearing spacesuit, helmet and carrying water survival gear, he will be lifted into the air by a deployed parachute and guided over the Bay where he will drop into the water to test airdrop and water survival techniques. Photo credit: NASA or National Aeronautics and Space Administration

DOE Office of Scientific and Technical Information (OSTI.GOV)

Genest, Vincent X.; Vinet, Luc; Zhedanov, Alexei

The algebra H of the dual -1 Hahn polynomials is derived and shown to arise in the Clebsch-Gordan problem of sl{sub -1}(2). The dual -1 Hahn polynomials are the bispectral polynomials of a discrete argument obtained from the q{yields}-1 limit of the dual q-Hahn polynomials. The Hopf algebra sl{sub -1}(2) has four generators including an involution, it is also a q{yields}-1 limit of the quantum algebra sl{sub q}(2) and furthermore, the dynamical algebra of the parabose oscillator. The algebra H, a two-parameter generalization of u(2) with an involution as additional generator, is first derived from the recurrence relation of themore » -1 Hahn polynomials. It is then shown that H can be realized in terms of the generators of two added sl{sub -1}(2) algebras, so that the Clebsch-Gordan coefficients of sl{sub -1}(2) are dual -1 Hahn polynomials. An irreducible representation of H involving five-diagonal matrices and connected to the difference equation of the dual -1 Hahn polynomials is constructed.« less

Thomas-Fermi model for a bulk self-gravitating stellar object in two dimensions

NASA Astrophysics Data System (ADS)

De, Sanchari; Chakrabarty, Somenath

2015-09-01

In this article we have solved a hypothetical problem related to the stability and gross properties of two-dimensional self-gravitating stellar objects using the Thomas-Fermi model. The formalism presented here is an extension of the standard three-dimensional problem discussed in the book on statistical physics, Part I by Landau and Lifshitz. Further, the formalism presented in this article may be considered a class problem for post-graduate-level students of physics or may be assigned as a part of their dissertation project.

The Legacy of Thomas Hodgkin Is Still Relevant 150 Years After His Death. Nothing of Humanity Was Foreign to Him.

PubMed

Dann, Eldad J

2017-01-30

Current leading figures in medical science usually focus on very specific topics and use cutting-edge technologies to broaden our knowledge in the field. The working environment of the nineteenth century was very different. Medical giants of that time such as Rudolph Virchow and Thomas Hodgkin had a wide-ranging scope of research and humanitarian interests and made enormous contributions to a variety of core areas of medicine and the well-being of mankind. The year 2016 marked the 150th anniversary of the death of Dr Thomas Hodgkin. Even a brief review of his life and work proves the current relevance of the outstanding deeds of this exceptional physician, medical educator, and defender of human rights for the poor and underprivileged; his vision was far ahead of his time.

Fast and Frugal Heuristics Are Plausible Models of Cognition: Reply to Dougherty, Franco-Watkins, and Thomas (2008)

ERIC Educational Resources Information Center

Gigerenzer, Gerd; Hoffrage, Ulrich; Goldstein, Daniel G.

2008-01-01

M. R. Dougherty, A. M. Franco-Watkins, and R. Thomas (2008) conjectured that fast and frugal heuristics need an automatic frequency counter for ordering cues. In fact, only a few heuristics order cues, and these orderings can arise from evolutionary, social, or individual learning, none of which requires automatic frequency counting. The idea that…

The University of St. Thomas' Service-Learning Program: Matching the University's Catholic Mission to Greater Community Needs

ERIC Educational Resources Information Center

Garcia-Contreras, Rogelio; Faletta, Jean-Philippe; Krustchinsky, Rick

2011-01-01

The University of St. Thomas (UST) is a private Catholic liberal arts university in Houston, Texas, whose mission includes a commitment to service. The pedagogy of service-learning aligns well with the school's mission and with the teachings and social doctrine of the Catholic Church. Designed to expand opportunities for the procurement of the…

ARC-2009-ACD09-0153-004

NASA Image and Video Library

2009-07-23

Janice Hahn, Councilwoman, District 15, City of Los Angeles visits NASA Ames Research Center. Associate Director Steve Zornetzer and Center Director S. Pete Worden meet with .Janice Hahn, Councilwoman, District 15, City of Los Angeles, Jenny Chavez, Staffer for Councilwoman Hahn, Walter Zifkin, Commissioner, Los Angles International Airport, Michael Molina, Chief of External Affairs, LAWA, Jaideep Vaswani. Chief of Airport Planning, LAWA

Debye screening and a Thomas - Fermi model of a dyonic atom in a two potential theory of electromagnetism

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wolf, C.

1993-02-01

We study the screening of a central Abelian dyon by a surrounding dyon cloud in a two potential theory of electromagnetism. A generalized formula for the Debye screening length is obtained and a Thomas - Fermi Model for a charged cloud surrounding a central Dyonic Core is studied. 20 refs.

Thomas Hodgkin: social activist.

PubMed

Rosenfeld, L

2000-04-01

Thomas Hodgkin's discovery of a lymph gland disorder is merely one event in a life of unusually varied public activities in the social reform and humanitarian movements of the mid-19th century. He wrote pamphlets on medical care for the working-class poor, public health, housing, sanitation, and the relief of cold, hunger, and unemployment. Hodgkin wrote about the problems arising from urban renewal and suburban development. His contributions to geographic explorations, anthropology, ethnology, and foreign affairs are virtually unknown today. Hodgkin's opposition to slavery and the slave trade involved him in the development of settlements in Africa for freed slaves and disputes with the abolitionists in America. He fought for social justice and human rights for native populations being oppressed by British foreign policy in South Africa and New Zealand. His criticism of the exploitation of Indians by the Hudson's Bay Company's fur trade contributed to a professional conflict in the highly politicized environment of Guy's Hospital and blocked advancement of his medical career. Closer to home he advocated reform of medical education and practice and sponsored adult education programs. As a member of its Senate, he helped in establishing London University, the first nonsectarian institution of higher learning in England. He lectured to working people on the means of preserving and promoting health and advocated prepaid medical care for the working poor. Concerned about unequal distribution of medical care, he opposed medical contracts to the lowest bidder and price-determined government plans for health care. He consistently maintained that the basic problems of the poor were not medical but socioeconomic. Since charity leaves nothing behind in exchange, Hodgkin was certain that greater benefits would result if charitable money was used to provide jobs. He denounced the evils of tobacco, practices of trade unions, and barbarous prize fights. On a trip to Jerusalem

Thomas Jonathan ’Stonewall’ Jackson Fought by the Old Testament, Lived by the New

DTIC Science & Technology

1992-04-15

the paternal Jacksons. Sometime in 1835, Laura went to live with their maternal relatives, the Neales.14 At seven years old, Jackson had become a...document may not be Maed for openi pub&hcdos unti it h- s been delrd by the appropriat militMs ftwvic@ o r~erment apncy. THOMAS JONATHAN "STONEWALL...SCHEDULE Distribution is unlimited. 4 PERFORMING ORGANIZATION REPORT NUMBER( S ) 5. MONITORING ORGANIZATION REPORT NUMBER( S ) 6a. NAME OF PERFORMING

Electron and Nucleon Localization Functions of Oganesson: Approaching the Thomas-Fermi Limit

DOE Office of Scientific and Technical Information (OSTI.GOV)

Jerabek, Paul; Schuetrumpf, Bastian; Schwerdtfeger, Peter

Fermion localization functions are used to discuss electronic and nucleonic shell structure effects in the superheavy element oganesson, the heaviest element discovered to date. Spin-orbit splitting in the 7p electronic shell becomes so large (~10 eV) that Og is expected to show uniform-gas-like behavior in the valence region with a rather large dipole polarizability compared to the lighter rare gas elements. The nucleon localization in Og is also predicted to undergo a transition to the Thomas-Fermi gas behavior in the valence region. Finally, this effect, particularly strong for neutrons, is due to the high density of single-particle orbitals.

Electron and Nucleon Localization Functions of Oganesson: Approaching the Thomas-Fermi Limit

DOE PAGES

Jerabek, Paul; Schuetrumpf, Bastian; Schwerdtfeger, Peter; ...

2018-01-31

Fermion localization functions are used to discuss electronic and nucleonic shell structure effects in the superheavy element oganesson, the heaviest element discovered to date. Spin-orbit splitting in the 7p electronic shell becomes so large (~10 eV) that Og is expected to show uniform-gas-like behavior in the valence region with a rather large dipole polarizability compared to the lighter rare gas elements. The nucleon localization in Og is also predicted to undergo a transition to the Thomas-Fermi gas behavior in the valence region. Finally, this effect, particularly strong for neutrons, is due to the high density of single-particle orbitals.

Evidence for structural plasticity in humans: comment on Thomas and Baker (2012).

PubMed

Erickson, Kirk I

2013-06-01

Thomas and Baker (2012) have provided a balanced and critical review of the scientific evidence claiming that training interventions have the capacity to alter the structural morphology of the brain. Here I provide some additional considerations when reading and interpreting both the review and the original empirical articles. Research proposing to examine the capacity for structural brain plasticity needs to contemplate methodological issues and factors that could moderate or mask potentially interesting effects. Overall, although this area of research is in need of circumspection, it also could have transformative implications if structural brain plasticity in humans is possible. Copyright © 2012 Elsevier Inc. All rights reserved.

Electron and Nucleon Localization Functions of Oganesson: Approaching the Thomas-Fermi Limit

NASA Astrophysics Data System (ADS)

Jerabek, Paul; Schuetrumpf, Bastian; Schwerdtfeger, Peter; Nazarewicz, Witold

2018-02-01

Fermion localization functions are used to discuss electronic and nucleonic shell structure effects in the superheavy element oganesson, the heaviest element discovered to date. Spin-orbit splitting in the 7 p electronic shell becomes so large (˜10 eV ) that Og is expected to show uniform-gas-like behavior in the valence region with a rather large dipole polarizability compared to the lighter rare gas elements. The nucleon localization in Og is also predicted to undergo a transition to the Thomas-Fermi gas behavior in the valence region. This effect, particularly strong for neutrons, is due to the high density of single-particle orbitals.

Early Impact and Control of Aphid (Chaitophorus populicola Thomas) Infestations on Young Cottonwood Plantations in the Mississippi Delta

Treesearch

J.D. Solomon

1999-01-01

A very heavy infestation of the aphid Chaitophorus populicola Thomas developed primarily on growing shoots in commercial cottonwood plantations and caused serious injury to terminals. Terminal mortality in heavily infested fields averaged 92.5 percent, and shoot dieback averaged 4.3 inches. Many of the surviving terminals were weakened to the...

METHODOLOGICAL NOTES: Rotation of the swing plane of Foucault's pendulum and Thomas spin precession: two sides of one coin

NASA Astrophysics Data System (ADS)

Krivoruchenko, Mikhail I.

2009-08-01

Using elementary geometric tools, we apply essentially the same methods to derive expressions for the rotation angle of the swing plane of Foucault's pendulum and the rotation angle of the spin of a relativistic particle moving in a circular orbit (the Thomas precession effect).

Evolution and Education: Lessons from Thomas Huxley

NASA Astrophysics Data System (ADS)

Lyons, Sherrie Lynne

2010-05-01

Thomas Huxley more than anyone else was responsible for disseminating Darwin’s theory in the western world and maintained that investigating the history of life should be regarded as a purely scientific question free of theological speculation. The content and rhetorical strategy of Huxley’s defense of evolution is analyzed. Huxley argued that the classification of humans should be determined independent of any theories of origination of species. Besides providing evidence that demonstrated the close relationship between apes and humans, he also argued that a pithecoid ancestry in no way degraded humankind. In his broader defense of evolution he drew on his agnosticism to define what science could and could not explain. Theology made empirical claims and needed to be subject to the same standards of evidence as scientific claims. He maintained that even most scientific objections to evolution were religiously based. The objections to the theory fundamentally remain the same as in the nineteenth century and much can be learned from Huxley to develop effective strategies for educating the public about evolution. Huxley’s own scientific articles as well as his popular writings provide numerous examples that could be harnessed not only for the teaching of evolution, but also for understanding science as a process.

Thomas checks the condition of the MIS-B middeck locker experiment

NASA Image and Video Library

1995-07-28

STS070-329-022 (13-22 JULY 1995)--- Astronaut Donald A. Thomas, mission specialist, prepares to activate the Microcapsules in Space (MIS-B) experiment on the space shuttle Discovery?s middeck. MIS-B is an Army project to improve the understanding of microencapsulated drug technology and demonstrate the feasibility of producing pharmaceutical microcapsules in the weightlessness of space. This is the second flight of the experiment, which originally flew on STS-53 in 1992. Microcapsules are tiny spheres about 50 to 100 micrometers in diameter (about the thickness of a strand of human hair). They are used to develop high-performance chemical products and innovative pharmaceuticals such as time-release prescriptions. The drug used in the MIS experiments was ampicillin.

Thomas-Fermi model electron density with correct boundary conditions: Application to atoms and ions

DOE Office of Scientific and Technical Information (OSTI.GOV)

Patil, S.H.

1999-01-01

The author proposes an electron density in atoms and ions, which has the Thomas-Fermi-Dirac form in the intermediate region of r, satisfies the Kato condition for small r, and has the correct asymptotic behavior at large values of r, where r is the distance from the nucleus. He also analyzes the perturbation in the density produced by multipolar fields. He uses these densities in the Poisson equation to deduce average values of r{sup m}, multipolar polarizabilities, and dispersion coefficients of atoms and ions. The predictions are in good agreement with experimental and other theoretical values, generally within about 20%. Hemore » tabulates here the coefficient A in the asymptotic density; radial expectation values (r{sup m}) for m = 2, 4, 6; multipolar polarizabilities {alpha}{sub 1}, {alpha}{sub 2}, {alpha}{sub 3}; expectation values {l_angle}r{sup 0}{r_angle} and {l_angle}r{sup 2}{r_angle} of the asymptotic electron density; and the van der Waals coefficient C{sub 6} for atoms and ions with 2 {le} Z {le} 92. Many of the results, particularly the multipolar polarizabilities and the higher order dispersion coefficients, are the only ones available in the literature. The variation of these properties also provides interesting insight into the shell structure of atoms and ions. Overall, the Thomas-Fermi-Dirac model with the correct boundary conditions provides a good global description of atoms and ions.« less

A "Surprising Shock" in the Cathedral: Getting Year 7 to Vocalise Responses to the Murder of Thomas Becket

ERIC Educational Resources Information Center

Partridge, Mary

2011-01-01

Mary Partridge wanted her pupils not only to become more aware of competing and contrasting voices in the past, but to understand how historians orchestrate those voices. Using Edward Grim's eye-witness account of Thomas Becket's murder, her Year 7 pupils explored nuances in the word "shocking" as a way of distinguishing the responses of…

Thomas Paytherus (1752-1828): Entrepreneurial surgeon-apothecary and ardent Jennerian.

PubMed

Connor, Henry; Clark, David M

2013-08-01

Thomas Paytherus was born in Fownhope and apprenticed in Gloucester. He practised there and in Ross-on-Wye where he and Edward Jenner undertook an autopsy on a patient with angina that they linked causally to coronary artery ossification. In 1794 Paytherus moved to London and opened a highly successful pharmacy that he later sold to his partners Savory and Moore. Paytherus was among those who advised Jenner on the publication of his work on vaccination. Then he acted as an intermediary in the dispute between Jenner and Ingen-Housz and also alerted Jenner to Pearson's claims as a pioneer of vaccination. In 1800 he published a detailed analysis of the dispute between Jenner and Woodville whose patients had developed variola-like lesions following vaccination. Their correspondence shows that Paytherus, Jenner and their families remained firm friends. Paytherus and his family moved to Abergavenny where he died in 1828.

The Limits of Obedience: Brigadier General Thomas J. Wood’s Performance During the Battle of Chickamauga

DTIC Science & Technology

2005-06-17

the Battle of Stewart’s Creek on 29 December and the Battle of Stones River from 30 December 1862 through 3 January 1863. It stayed in...enormous implications on the outcome of the battle . He decided not to pull out of the lines, but instead stay where 65 he was. Had Kellogg still been... THE LIMITS OF OBEDIENCE: BRIGADIER GENERAL THOMAS J. WOOD’S PERFORMANCE DURING THE

Achievements and new directions in subatomic physics: Festschrift in Honor of Tony Thomas 60th birthday.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wally Melnitchouk

On the occasion of his 60th birthday, this workshop honours the outstanding achievements and service to subatomic physics which Tony Thomas has made over a career spanning almost 4 decades. The workshop will review recent results and discuss new directions for nuclear and hadron physics, focusing on topics to which Tony has made significant contributions, such as pion-nucleon scattering, deep inelastic scattering, chiral extrapolations, quark models of the nucleon, and lattice QCD.

The many encounters of Thomas Kuhn and French epistemology.

PubMed

Simons, Massimiliano

2017-02-01

The work of Thomas Kuhn has been very influential in Anglo-American philosophy of science and it is claimed that it has initiated the historical turn. Although this might be the case for English speaking countries, in France an historical approach has always been the rule. This article aims to investigate the similarities and differences between Kuhn and French philosophy of science or 'French epistemology'. The first part will argue that he is influenced by French epistemologists, but by lesser known authors than often thought. The second part focuses on the reactions of French epistemologists on Kuhn's work, which were often very critical. It is argued that behind some superficial similarities there are deep disagreements between Kuhn and French epistemology. This is finally shown by a brief comparison with the reaction of more recent French philosophers of science, who distance themselves from French epistemology and are more positive about Kuhn. Based on these diverse appreciations of Kuhn, a typology of the different positions within the philosophy of science is suggested. Copyright © 2017 Elsevier Ltd. All rights reserved.

Integration versus apartheid in post-Roman Britain: a response to Thomas et Al. (2008).

PubMed

Pattison, John E

2011-12-01

The genetic surveys of the population of Britain conducted by Weale et al. and Capelli et al. produced estimates of the Germani immigration into Britain during the early Anglo-Saxon period, c.430-c.730. These estimates are considerably higher than the estimates of archaeologists. A possible explanation suggests that an apartheid-like social system existed in the early Anglo-Saxon kingdoms resulting in the Germani breeding more quickly than the Britons. Thomas et al. attempted to model this suggestion and showed that it was a possible explanation if all Anglo-Saxon kingdoms had such a system for up to 400 years. I noted that their explanation ignored the probability that Germani have been arriving in Britain for at least the past three millennia, including Belgae and Roman soldiers, and not only during the early Anglo-Saxon period. I produced a population model for Britain taking into account this long term, low level migration that showed that the estimates could be reconciled without the need for introducing an apartheid-like system. In turn, Thomas et al. responded, criticizing my model and arguments, which they considered persuasively written but wanting in terms of methodology, data sources, underlying assumptions, and application. Here, I respond in detail to those criticisms and argue that it is still unnecessary to introduce an apartheid-like system in order to reconcile the different estimates of Germani arrivals. A point of confusion is that geneticists are interested in ancestry, while archaeologists are interested in ethnicity: it is the bones, not the burial rites, which are important in the present context.

Renaissance Epyllions: A Comparative Reading of Christopher Marlowe's "Hero and Leander," Thomas Lodge's "Scylla's Metamorphosis" and Francis Beaumont's "Salmacis and Hermaphroditus"

ERIC Educational Resources Information Center

Mahmoudi, Yazdan

2016-01-01

The present paper is supposed to compare and contrast three of these masterpieces written the Renaissance period. The epyllions under study are Christopher Marlowe's "Hero and Leander," Thomas Lodge's "Scylla's Metamorphosis" and Francis Beaumont's "Salmacis and Hermaphroditus." Bush believes that "the influence…

Whistles, bells, and cogs in machines: Thomas Huxley and epiphenomenalism.

PubMed

Greenwood, John

2010-01-01

In this paper I try to shed some historical light upon the doctrine of epiphenomenalism, by focusing on the version of epiphenomenalism championed by Thomas Huxley, which is often treated as a classic statement of the doctrine. I argue that it is doubtful if Huxley held any form of metaphysical epiphenomenalism, and that he held a more limited form of empirical epiphenomenalism with respect to consciousness but not with respect to mentality per se. Contrary to what is conventionally supposed, Huxley's empirical epiphenomenalism with respect to consciousness was not simply based upon the demonstration of the neurophysiological basis of conscious mentality, or derived from the extension of mechanistic and reflexive principles of explanation to encompass all forms of animal and human behavior, but was based upon the demonstration of purposive and coordinated animal and human behavior in the absence of consciousness. Given Huxley's own treatment of mentality, his characterization of animals and humans as "conscious automata" was not well chosen.

Extended Thomas-Fermi density functional for the unitary Fermi gas

NASA Astrophysics Data System (ADS)

Salasnich, Luca; Toigo, Flavio

2008-11-01

We determine the energy density ξ(3/5)nɛF and the gradient correction λℏ2(∇n)2/(8mn) of the extended Thomas-Fermi (ETF) density functional, where n is the number density and ɛF is the Fermi energy, for a trapped two-component Fermi gas with infinite scattering length (unitary Fermi gas) on the basis of recent diffusion Monte Carlo (DMC) calculations [Phys. Rev. Lett. 99, 233201 (2007)]. In particular we find that ξ=0.455 and λ=0.13 give the best fit of the DMC data with an even number N of particles. We also study the odd-even splitting γN1/9ℏω of the ground-state energy for the unitary gas in a harmonic trap of frequency ω determining the constant γ . Finally we investigate the effect of the gradient term in the time-dependent ETF model by introducing generalized Galilei-invariant hydrodynamics equations.

Mirror asymmetry for B(GT) of {sup 24}Si induced by Thomas-Ehrman shift

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ichikawa, Y.; Kubo, T.; Aoi, N.

We carried out the beta-decay spectroscopy on {sup 24}Si in order to investigate a change in configuration in the wave function induced by Thomas-Ehrman shift from a perspective of mirror asymmetry of B(GT). We observed two beta transitions to low-lying bound states in {sup 24}Al for the first time. In this proceeding, the B(GT) of {sup 24}Si is compared with that of the mirror nucleus {sup 24}Ne, and the mirror asymmetry of B(GT) is determined. Then the origin of the B(GT) asymmetry is discussed through the comparison with theoretical calculations.

Density functional of a two-dimensional gas of dipolar atoms: Thomas-Fermi-Dirac treatment

DOE Office of Scientific and Technical Information (OSTI.GOV)

Fang, Bess; Englert, Berthold-Georg

We derive the density functional for the ground-state energy of a two-dimensional, spin-polarized gas of neutral fermionic atoms with magnetic-dipole interaction, in the Thomas-Fermi-Dirac approximation. For many atoms in a harmonic trap, we give analytical solutions for the single-particle spatial density and the ground-state energy, in dependence on the interaction strength, and we discuss the weak-interaction limit that is relevant for experiments. We then lift the restriction of full spin polarization and account for a time-independent inhomogeneous external magnetic field. The field strength necessary to ensure full spin polarization is derived.

Perish, then publish: Thomas Harriot and the sine law of refraction.

PubMed

Fishman, R S

2000-03-01

A talented young scientist, Thomas Harriot, wrote the first English account of the New World, "A Briefe and True Report of the New Found Land of Virginia," distinguished by its serious effort to describe and understand the American Indian. Harriot went on to make innovations in mathematics and was one of the first astronomers to use the telescope. His largely unappreciated contribution to the history of ophthalmology was the first formulation of the sine law of refraction of light, found in his unpublished papers long after his death in 1621. Willebrord Snell discovered the sine law in Holland in 1621 but also died without formally publishing it. Rene Descartes first published the sine law in 1637. The sine law of refraction became not only the prime law of all lens systems but ushered in a new world of physical laws.

The value of the Thomas-plot in the diagnostic work up of anemic patients referred by general practitioners.

PubMed

Leers, M P G; Keuren, J F W; Oosterhuis, W P

2010-12-01

In patients with inflammatory conditions, diagnosing classic iron deficiency or anemia of chronic disease is challenging. In this study, we assessed the diagnostic value of the so-called Thomas'-plot [soluble transferrin receptor (sTfR)/log ferritin (sTfr/log Ferr) and the reticulocyte hemoglobin equivalent (Ret-HE)] in the anemia work up of patients referred by general practitioners. During July 2008-March 2009, 337 consecutive patients were included because of lowered Hb values. The laboratory results of the first 133 consecutive patients were used to determine the cut-off values for the diagnostic plot. The laboratory results of these patients were assessed and interpreted independently by two investigators, blinded from sTfR/log Ferr and Ret-HE values. The following 204 patients were used to test the plot in practice. In 32% of the first 133 patients, no indication of the cause of anemia could be found. However, when using the diagnostic plot in the following 204 patients, this fraction decreased to 14%. The 'Thomas'-plot is of diagnostic value for distinguishing functional iron deficiency from classic iron deficiency in a patient population referred by general practitioners. © 2010 Blackwell Publishing Ltd.

Edward Gantt (1742-1837): US senate chaplain and first White House physician to Thomas Jefferson.

PubMed

Cavanagh, Harrison Dwight

2017-08-01

In his long and eventful life, Edward Gantt (1742-1837) made important contributions to the newly independent American Republic, as well as to the development of scientific evidence-based American medicine. Unfortunately, his achievements have gone unrecognized and unreported in mainstream historical publications. Specifically, his service as the first designated White House doctor, and personal physician to President Thomas Jefferson from 1801 to 1809 has not been reported. The purpose of this paper is to document the biographical and scientific details of his extraordinary life and notable contributions.

Tough Tommy’s Space Force: General Thomas S. Power and the Air Force Space Program

DTIC Science & Technology

2016-06-01

public release by AU Security and Policy Review Office. TOUGH TOMMY’S SPACE FORCE GENERAL THOMAS S . POWER AND THE AIR FORCE SPACE PROGRAM BY...in 2007, a Master of Operational Art and Science from the Air Command and Staff College in 2015, and a Doctorate in Economic Development from New...without a college diploma, and a relic of a bygone era of barnstormers perhaps high on courage but low on intelligence.8 In history, Power was a “sadist

Health Care Ergonomics: Contributions of Thomas Waters.

PubMed

Poole Wilson, Tiffany; Davis, Kermit G

2016-08-01

The aim of this study was to assess the contributions of Thomas Waters's work in the field of health care ergonomics and beyond. Waters's research of safe patient handling with a focus on reducing musculoskeletal disorders (MSDs) in health care workers contributed to current studies and prevention strategies. He worked with several groups to share his research and assist in developing safe patient handling guidelines and curriculum for nursing students and health care workers. The citations of articles that were published by Waters in health care ergonomics were evaluated for quality and themes of conclusions. Quality was assessed using the Mixed Methods Appraisal Tool and centrality to original research rating. Themes were documented by the type of population the citing articles were investigating. In total, 266 articles that referenced the top seven cited articles were evaluated. More than 95% of them were rated either medium or high quality. The important themes of these citing articles were as follows: (a) Safe patient handling is effective in reducing MSDs in health care workers. (b) Shift work has negative impact on nurses. (c) There is no safe way to manually lift a patient. (d) Nurse curriculums should contain safe patient handling. The research of Waters has contributed significantly to the health care ergonomics and beyond. His work, in combination with other pioneers in the field, has generated multiple initiatives, such as a standard safe patient-handling curriculum and safe patient-handling programs. © 2016, Human Factors and Ergonomics Society.

Nietzche's echo--a dialogue with Thomas Altizer.

PubMed

Moss, David M

2010-03-01

Prophets provoke psychological unrest, especially when exposing accepted beliefs as profound deceptions. The biblical prophets exemplify such confrontation as do certain atheists ardently opposed to the images of God created by those seers. The German philosopher Friedrich Nietzsche dramatically illustrates this type of counterforce to the Judeo-Christian tradition. His prophet Zarathustra is intended to be a model for the modern mind, one free of superstitions inflicted by antiquated religious dogma. Nietzsche's credo "God is dead" served as a declaration for the nineteenth century. In the twentieth century, it became a theological diagnosis. As a "movement," or "tenor," the death of God or radical theology was spearheaded by Thomas Altizer, a well-published young professor center-staged during the turbulent 1960s. His work foreshadows a new strain of atheism currently represented by biologist Richard Dawkins (2006, The God delusion. New York: Houghton Mifflin), philosopher Daniel Dennett (2006, Breaking the spell. New York: Penquin), neuroscientist Sam Harris (2004, The end of faith. New York: W.W. Norton; 2008, Letter to a Christian nation. New York: Vintage), journalist Christopher Hitchens (2007, God is not great. New York: Twelve), and mathematician John Allen Paulos (Paulos 2008, Irreligion. New York: Hill & Wang). This twenty-first century crusade against belief in God is best understood as a psychodynamic ignited by Altizer's Christian atheism. The present dialogue reflects that dynamic while the prologue and epilogue reveal evidence of Providence amidst claims of God's demise in contemporary history.

Friendship and Thomas More: Using Erasmus's Letter to Ulrich von Hutten as a Tool in Developing a Classroom Management Plan

ERIC Educational Resources Information Center

Brown, Joshua W.; Rud, A. G.

2006-01-01

The development of course management plans and student behavioral guidelines are a necessary component for the foundation of any school or learning community. In this article the authors explore a few of the principal foundations of creating these plans based on the qualities Erasmus described in his great friend Thomas More. Teachers and…

My Ward: The Story of St Thomas', Guy's and the Evelina Children's Hospitals and their Ward Names Wendy Mathews My Ward: The Story of St Thomas', Guy's and the Evelina Children's Hospitals and their Ward Names | Walpole House Publishing £5 I 135pp | 9780956394200 0956394205 [Formula: see text].

PubMed

2011-05-01

This is a fascinating record of the stories behind the names of wards at three London hospitals and of the hospitals themselves. Made possible by a grant from Guy's and st Thomas' Charity, it is beautifully produced and illustrated and is a great historical read.

Destructive Thomas Fire Continues Its Advance in New NASA Satellite Image

NASA Image and Video Library

2017-12-11

The Thomas fire, west of Los Angeles, continues to advance to the west and north and is threatening a number of coastal communities, including Santa Barbara. It is now the fifth largest wildfire in modern California history. According to CAL FIRE, as of midday Dec. 11, the fire had consumed more than 230,000 acres and was 15 percent contained. The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra satellite captured this image on Dec. 10. The image depicts vegetation in red, smoke in light brown, burned areas in dark grey, and active fires in yellow, as detected by the thermal infrared bands. The image covers an area of 14.3 by 19.6 miles (23 by 31.5 kilometers), and is located at 34.5 degrees north, 119.4 degrees west. https://photojournal.jpl.nasa.gov/catalog/PIA22122

Thomas Kuhn's impact on science education: What lessons can be learned?

NASA Astrophysics Data System (ADS)

Matthews, Michael R.

2004-01-01

Thomas Kuhn has had an impact in all academic fields. In science education, Kuhnian themes are especially noticeable in conceptual change research, constructivist theorizing, and multicultural education debates. Unfortunately the influence is frequently compromised by researchers having a limited understanding of Kuhn's original ideas, little exposure to the tradition of philosophical opposition to Kuhn's theories, and minimal appreciation of how Kuhn progressively qualified his initial irrationalist'' views of scientific development. One lesson to be learnt is that the science education community should more seriously and effectively engage with on-going debates and analysis in the history and philosophy of science. This is the same lesson that was learnt from the science education community's wholesale embrace of logical empiricism during the 1950s and 1960s. Another lesson is that there are powerful disciplinary, institutional, and subcultural barriers that mitigate against science educators seriously engaging with historical and philosophical scholarship.

STS-102 MS Thomas talks to media at Launch Pad 39B during TCDT

NASA Technical Reports Server (NTRS)

2001-01-01

KENNEDY SPACE CENTER, Fla. -- STS-102 Mission Specialist Andrew Thomas answers a question from the media during an interview session at the slidewire basket landing near Launch Pad 39B. He and other crew members are at KSC for Terminal Countdown Demonstration Test activities, which also include a simulated launch countdown. STS-102 is the eighth construction flight to the International Space Station, with Space Shuttle Discovery carrying the Multi-Purpose Logistics Module Leonardo. Discovery will also be transporting the Expedition Two crew to the Space Station, to replace Expedition One, who will return to Earth with Discovery. Launch on mission STS-102 is scheduled for March 8.

SSE-based Thomas algorithm for quasi-block-tridiagonal linear equation systems, optimized for small dense blocks

NASA Astrophysics Data System (ADS)

Barnaś, Dawid; Bieniasz, Lesław K.

2017-07-01

We have recently developed a vectorized Thomas solver for quasi-block tridiagonal linear algebraic equation systems using Streaming SIMD Extensions (SSE) and Advanced Vector Extensions (AVX) in operations on dense blocks [D. Barnaś and L. K. Bieniasz, Int. J. Comput. Meth., accepted]. The acceleration caused by vectorization was observed for large block sizes, but was less satisfactory for small blocks. In this communication we report on another version of the solver, optimized for small blocks of size up to four rows and/or columns.

Bio-optical profile data report coastal transition zone program, R/V Thomas Washington, June 24 - July 21, 1988

NASA Technical Reports Server (NTRS)

Davis, Curtiss O.; Rhea, W. Joseph

1990-01-01

Twenty-three vertical profiles of the bio-optical properties of the ocean were made during a research cruise on the R/V Thomas Washington, June 24 to July 21, 1988, as part of the Coastal Transition Zone Program off Point Arena, California. A summary is given, to provide investigators with an overview of the data collected. The entire data set is available in digital form for interested researchers.

Sub-saturation matter in compact stars: Nuclear modelling in the framework of the extended Thomas-Fermi theory

DOE Office of Scientific and Technical Information (OSTI.GOV)

Aymard, François; Gulminelli, Francesca; Margueron, Jérôme

A recently introduced analytical model for the nuclear density profile [1] is implemented in the Extended Thomas-Fermi (ETF) energy density functional. This allows to (i) shed a new light on the issue of the sign of surface symmetry energy in nuclear mass formulas, as well as to (ii) show the importance of the in-medium corrections to the nuclear cluster energies in thermodynamic conditions relevant for the description of core-collapse supernovae and (proto)-neutron star crust.

Sub-saturation matter in compact stars: Nuclear modelling in the framework of the extended Thomas-Fermi theory

NASA Astrophysics Data System (ADS)

Aymard, François; Gulminelli, Francesca; Margueron, Jérôme

2015-02-01

A recently introduced analytical model for the nuclear density profile [1] is implemented in the Extended Thomas-Fermi (ETF) energy density functional. This allows to (i) shed a new light on the issue of the sign of surface symmetry energy in nuclear mass formulas, as well as to (ii) show the importance of the in-medium corrections to the nuclear cluster energies in thermodynamic conditions relevant for the description of core-collapse supernovae and (proto)-neutron star crust.

A Note on DeCaro, Thomas, and Beilock (2008): Further Data Demonstrate Complexities in the Assessment of Information-Integration Category Learning

ERIC Educational Resources Information Center

Tharp, Ian J.; Pickering, Alan D.

2009-01-01

DeCaro et al. [DeCaro, M. S., Thomas, R. D., & Beilock, S. L. (2008). "Individual differences in category learning: Sometimes less working memory capacity is better than more." "Cognition, 107"(1), 284-294] explored how individual differences in working memory capacity differentially mediate the learning of distinct category structures.…

Written Testimony of Thomas J. Nussbaum, Chancellor of the California Community Colleges, [presented to the] Assembly Budget Subcommittee on Education Finance.

ERIC Educational Resources Information Center

Nussbaum, Thomas J.

This written testimony, presented to the California State Assembly on February 28, 2001, by Thomas J. Nussbaum, Chancellor of the California Community Colleges (CCC), presents statistics for the financial state of the California Community College System, in comparison to both other states and to the California K-12, California State University…

Gender differences in flashbulb memories elicited by the Clarence Thomas hearings.

PubMed

Morse, C K; Woodward, E M; Zweigenhaft, R L

1993-08-01

American students and other adults aged 19-75 completed a questionnaire about flashbulb memories and recollections of autobiographical events elicited by the Senate hearings for confirmation of Clarence Thomas as a Supreme Court Justice. The respondents were less likely to recall vivid image memories than were respondents in earlier studies about memories of the assassinations of John Kennedy, Robert Kennedy, and Martin Luther King. Women were significantly more likely than men to report vivid image memories and recall of autobiographical events elicited by the hearings, but they did not differ significantly from men in the ratings of these memories. Women were also significantly more likely than men to report specific memories of having been victims of sexual harassment and abuse. Women recalled reconsidering incidents in which they might have been victims of sexual harassment more often than men did. Exposure to media coverage did not differ by gender, although the amount of coverage paid attention to did correlate with the number of personal memories elicited.

Thomas C. McMurtry

NASA Technical Reports Server (NTRS)

1982-01-01

Thomas C. McMurtry in November 1982. He graduated in June 1957 from the University of Notre Dame with a Bachelor of Science degree in Mechanical Engineering. McMurtry had been part of the university's Navy ROTC program, and after graduation he joined the Navy as a pilot. Before retiring from the Navy in 1964 as a Lieutenant, he graduated from the U.S. Navy Test Pilot School, and had flown such aircraft as the F9F, A3D, A4D, F3D, F-8, A-6, and S-2. McMurtry was then a consultant for the Lockheed Corporation until joining NASA as a research pilot in 1967. While at the Dryden Flight Research Center, he was co-project pilot on the F-8 Digital Fly-By-Wire program, and the 747 Shuttle Carrier Aircraft, as well as project pilot on the F-15 Digital Electronic Engine Control (DEEC) project, the KC-135 Winglets, the F-8 Supercritical Wing project, and the AD-1 Oblique Wing Project. He also made research flights in NASA's YF-12C aircraft (actually a modified SR-71). McMurtry made the last glide flight of the X-24B lifting body on November 26, 1975, and was co-pilot of the 747 Shuttle Carrier Aircraft on the first free flight of the space shuttle Enterprise on August 12, 1977. He was involved in several remotely piloted research vehicle programs, including the FAA/NASA 720 Controlled Impact Demonstration and the 3/8 F-15 Spin Research Vehicle. During McMurtry's 32 years as a pilot and manager at Dryden, he received numerous awards. These include the NASA Exceptional Service Award for his work on the F-8 Supercritical Wing, and the Iven C. Kincheloe Award from the Society of Experimental Test Pilots for his role as chief pilot on the AD-1 project, the NASA Distinguished Service Medal, and the 1999 Milton O. Thomson Lifetime Achievement Award. McMurtry also held a number of management positions at Dryden, including Chief Pilot, Director of Flight Operations, Associate Director of Flight Operations, and was the acting Chief Engineer at the time of his retirement on June 3, 1999

Constructing Masculinities under Thomas Arnold of Rugby (1828-1842): Gender, Educational Policy and School Life in an Early-Victorian Public School

ERIC Educational Resources Information Center

Neddam, Fabrice

2004-01-01

Thomas Arnold has been a controversial figure for historians of the English public schools. He has been depicted either as the great reformer of these famous institutions or as an ordinary head master who did not do better than his contemporary colleagues. This article seeks to continue the debate about the assessment of his head master-ship by…

A Schedule-Based Approach for Flow-Control in Data Communication Networks

DTIC Science & Technology

1986-01-01

Tally Altes, Erdal Arikan , Carey Bunks, Isidro Castineyra, Julio Escobar, Eli Gafni, Ellen Hahne, Dan Helman, Patrick Hosein, Joe Hui, Atul Khanna...Tiedemann, Kevin Tsai, Paul Tseng, Paul Wiley, and Albert Wong. I have especially enjoyed many discussions with Ellen Hahne, Erdal Arikan , Jean Regnier

The advertisement call of Ameerega pulchripecta (Silverstone, 1976)(Anura, Dendrobatidae).

PubMed

Costa-Campos, Carlos Eduardo; Lima, Albertina Pimentel; Amézquita, Adolfo

2016-07-06

The name Ameerega picta was once used to denote a lineage of poison frogs (Dendrobatidae) distributed throughout most of the Amazon basin (Silverstone 1976); more recently, to describe a phenetic group involving at least 18 species, Lötters et al. (2007) pointed out that some of the lineages were indeed derived from the former A. picta. Among them, the nominal species with the widest distribution is A. hahneli (Haddad & Martins 1994; Twomey & Brown 2008), also an alleged complex of poorly defined species (Grant et al. 2006; Fouquet et al. 2007; Roberts et al. 2007). The mate-recognition signal, the advertisement call, was part of the evidence used to revalidate A. hahneli as a different species from A. picta. Although the advertisement call has been described for one or few individuals of other species in the group (Haddad & Martins 1994; Costa et al. 2006; Twomey & Brown 2008; Lötters et al. 2009), namely A. flavopicta, A. braccata and A. boehmei, and A. hahneli, we still lack a formal description for A. pulchripecta, the sister taxon of A. hahneli (Twomey & Brown 2008). Its call has been qualitatively described as similar to A. hahneli's call, but "deeper-voiced" (Lötters et al. 2007).

Thomas Spencer Wells, Bt FRCS (1818-97) and his contributions to naval medicine.

PubMed

Cook, G C

2007-05-01

Sir Thomas Spencer Wells (1818-97) is best remembered both as a gynaecological surgeon, who introduced ovariectomy, and as the one who introduced the surgical forceps named after him. Far less is known of his career in the Royal Navy (RN) as an assistant surgeon and then a surgeon, and his contributions to naval medicine. Wells enlisted for the RN at the age of 23 years and for most of his naval career (1841-56) he served at the Naval Hospital, Malta (1841-48). However, from 1851 to 1853 he was surgeon and sanitary officer on the sloop, HMS Modeste. Most of Wells' contributions to the health of sailors were of a preventive nature, especially involving ventilation, in RN ships. He was also an enthusiast for quarantine and vaccination.

Thomas Henry Osler (1875-1936): a descendant of Sir William Osler's great-uncle and the founder of a South African medical dynasty.

PubMed

Myers, Edward D

2009-08-01

Sir William Osler's great-uncle Benjamin emigrated from England to South Africa with his wife and children in 1820. From Benjamin's son, Stephen, descended a large family of Oslers including at least seven doctors and dentists. This paper describes the lives and careers of Thomas Henry, and his medical and dental descendants.

The Study on the Lives and Health Conditions of Internees in Santo Thomas Camp of Philippines - Based on McAnlis's The War in Manila (1941-1945).

PubMed

Lee, Jueyeon; Cho, Youngsoo

2017-08-01

When Japan invaded the Philippines, two missionary dentists (Dr. McAnlis and Dr. Boots) who were forced to leave Korea were captured and interned in the Santo Thomas camp in Manila. Japan continued to bombard and plunder the Philippines in the wake of the Pacific War following the Great East Asia policy, leading to serious inflation and material deficiency. More than 4,000 Allied citizens held in Santo Thomas camp without basic food and shelter. Santo Thomas Camp was equipped with the systems of the Japanese military medical officers and Western doctors of captivity based on the Geneva Conventions(1929). However, it was an unsanitary environment in a dense space, so it could not prevent endemic diseases such as dysentery and dengue fever. With the expansion of the war in Japan, prisoners in the Shanghai and Philippine prisons were not provided with medicines, cures and food for healing diseases. In May 1944, the Japanese military ordered the prisoners to reduce their ration. The war starting in September 1944, internees received 1000 kcal of food per day, and since January 1945, they received less than 800 kcal of food. This was the lowest level of food rationing in Japan's civilian prison camps. They suffered beriberi from malnutrition, and other endemic diseases. An averaged 24 kg was lost by adult men due to food shortages, and 10 percent of the 390 deaths were directly attributable to starvation. The doctors demanded food increases. The Japanese Military forced the prisoner to worship the emperor and doctors not to record malnourishment as the cause of death. During the period, the prisoners suffered from psychosomatic symptoms such as headache, diarrhea, acute inflammation, excessive smoking, and alcoholism also occurred. Thus, the San Thomas camp had many difficulties in terms of nutrition, hygiene and medical care. The Japanese military had unethical and careless medical practices in the absence of medicines. Dr. McAnlis and missionary doctors handled a lot

A Collision of Vice and Virtue in Thomas Hardy's Tess of the D'Urbervilles: "A Pure Woman Faithfully Presented" or a Fallen Angel

ERIC Educational Resources Information Center

Saleh, Nafiseh Salman; Abbasi, Pyeaam

2014-01-01

Heralded as a sympathizer with the oppressed nineteenth century femininity, Thomas Hardy adopted an aggressive stance towards the institutionalized codes of the time, particularly the ideal of femininity which results in presenting him as one of the promethean forerunners of "New Woman" fiction. His outspoken attitudes are tangible in…

Obituary: Thomas Robert Metcalf, 1961-2007

NASA Astrophysics Data System (ADS)

Leka, K. D.

2007-12-01

The astronomy community lost a good friend when Tom Metcalf was killed in a skiing accident on Saturday, 7 July 2007, in the mountains near Boulder, Colorado. Tom was widely known for prolific work on solar magnetic fields, hard-X-ray imaging of solar flares, and spectral line diagnostics. He was often characterized as "one of the nicest guys in science." Born October 5, 1961 in Cheverly, Maryland, to Fred and Marilyn, Thomas R. Metcalf joined his sister, Karen, two years his elder, in a close family that loved sailing, inquisitiveness, and the natural world. Sibling rivalry (usually a Tonka truck intruding on Barbie's sub-table "castle") melted when Tom and Karen collaborated on elaborately engineered room-sized blanket-forts. Tom confidently signed up at age of three to crew for his family's sailboat; when the family moved to California in 1966, as Tom's father took a Professor of Mathematics position at the University of California Riverside, Tom's love for sailing was well-established. Week-long cruises or short trips in the harbor were all fun; when school friends came aboard, it was even better--if "only slightly too crowded" from the adults' points of view. Tom's introduction to astronomy began one cold, very clear, December night in the early 1970s, on a family camping trip to Death Valley. The "Sidewalk Astronomers of San Francisco" had lined the sidewalk near the visitors' center with all sorts of telescopes for public viewing. Soon after, Tom and his boyhood friend Jim O'Linger were building their own scopes, attending "Amateur Telescope Makers" conferences, and Tom was setting up his scope on a sidewalk for public viewing. In 1986, Tom set up his telescope on the bluffs above Dana Point Harbor, and gave numerous strangers a stunning view of Halley's Comet. His interest in physics and mathematics became evident during Tom's last years in high school (Poly High in Riverside), and as a senior he qualified to take freshman Physics at the University of

Thomas Jefferson High School Effective Transition of the Bilingual and Bicultural Student to Senior High School. O.E.E. Evaluation Report, 1981-1982.

ERIC Educational Resources Information Center

Hadis, Benjamin F.; And Others

Project Effective Transition of the Bilingual and Bicultural Student to Senior High School (ETBBS) at Thomas Jefferson High School in Brooklyn, New York, provided additional administrative and instructional staff in order to offer instructional services to 165 foreign born students, mostly from Puerto Rico and Haiti. The program was designed to…

"United States v. Thomas Cooper": A Violation of the Sedition Law. The Constitution Community: Revolution and the New Nation (1754-1820s).

ERIC Educational Resources Information Center

Lawlor, John M., Jr.

This lesson relates to freedom of speech and freedom of the press as provided for in the First Amendment of the U.S. Constitution. The lesson correlates to the National History Standards and the National Standards for Civics and Government. It presents seven primary source documents regarding Thomas Cooper's trial for sedition in 1800. Cooper was…

Thomas Starzl, Video Interview for His Living Legend Award at the ISBTS 2015.

PubMed

Gondolesi, G E; Mazariegos, G; Starzl, T E

2016-03-01

At the 14th International Small Bowel Transplant Symposium, (ISBTS2015) held in Buenos Aires, a session to recognize the pioneers that have dedicated their lives to make our current field possible was organized. Dr Thomas Starzl received the first Living Legend Award. A video interview was obtained at his office, edited, and later presented during the scientific meeting. More than 600 people saw Dr Starzl's interview, which captivated the audience for 40 minutes, before smiles, tears and the final applause erupted at the conclusion. We would like to share this video with all of you to inspire the current generations and the generations to come. The manuscript has the main parts of the interview, which can also be accessed at http://isbts2015.tts.org/starzl.mp4. Copyright © 2016 Elsevier Inc. All rights reserved.

Improved pump turbine transient behaviour prediction using a Thoma number-dependent hillchart model

NASA Astrophysics Data System (ADS)

Manderla, M.; Kiniger, K.; Koutnik, J.

2014-03-01

Water hammer phenomena are important issues for high head hydro power plants. Especially, if several reversible pump-turbines are connected to the same waterways there may be strong interactions between the hydraulic machines. The prediction and coverage of all relevant load cases is challenging and difficult using classical simulation models. On the basis of a recent pump-storage project, dynamic measurements motivate an improved modeling approach making use of the Thoma number dependency of the actual turbine behaviour. The proposed approach is validated for several transient scenarios and turns out to increase correlation between measurement and simulation results significantly. By applying a fully automated simulation procedure broad operating ranges can be covered which provides a consistent insight into critical load case scenarios. This finally allows the optimization of the closing strategy and hence the overall power plant performance.

Thomas Graham Brown (1882–1965): Behind the Scenes at the Cardiff Institute of Physiology

PubMed Central

Jones, J. Gareth; Tansey, E.M. (Tilli); Stuart, Douglas G.

2011-01-01

Thomas Graham Brown undertook seminal experiments on the neural control of locomotion between 1910 and 1915. Although elected to the Royal Society in 1927, his locomotion research was largely ignored until the 1960s when it was championed and extended by the distinguished neuroscientist, Anders Lundberg. Puzzlingly, Graham Brown's published research stopped in the 1920s and he became renowned as a mountaineer. In this article, we review his life and multifaceted career, including his active neurological service in WWI. We outline events behind the scenes during his tenure at Cardiff's Institute of Physiology in Wales, UK, including an interview with his technician, Terrence J. Surman, who worked in this institute for over half a century.

Prevention and Early Intervention: Individual Differences as Risk Factors for the Mental Health of Children. A Festschrift for Stella Chess and Alexander Thomas.

ERIC Educational Resources Information Center

Carey, William B., Ed.; McDevitt, Sean C., Ed.

This collection of essays, in honor of child psychiatry pioneers Stella Chess and Alexander Thomas, focuses on their idea that important life outcomes are the product of ongoing interactions between a child's behavioral style and the complimentarity or lack of fit of the parenting environment. Following an introduction, the remaining chapters are:…

Two-Proton Widths of 12O, 16Ne, and Three-Body Mechanism of Thomas-Ehrman Shift

NASA Astrophysics Data System (ADS)

Grigorenko, L. V.; Mukha, I. G.; Thompson, I. J.; Zhukov, M. V.

2002-01-01

Two-proton decays of 12O and 16Ne ground states are studied in a three-body model. We have found that the two-proton widths for the states should be much less than the existing experimental values (about 10 times for 12O and about 100 times for 16Ne). We also have found that the structure of these states differs significantly from the mirror isobaric analog states (IAS): breaking of isobaric symmetry is at the level of tens of percents. Together with a corresponding decrease of the Coulomb energy, this effect can be considered as a three-body mechanism of the Thomas-Ehrman shift.

Thomas-Reiche-Khun populations in X-CH 3 and X-C 2H 5 series of molecules

NASA Astrophysics Data System (ADS)

Zitto, M. E.; Caputo, M. C.; Ferraro, M. B.; Lazzeretti, P.

2000-09-01

Calculations of nuclear electric shieldings, equivalent to dipole moment geometric derivatives, and related to atomic polar tensors, are presented for X-CH 3 and X-C 2H 5 molecules with X=NH 2, OH and F. The electric shielding tensors satisfy a constraint for the electrostatic equilibrium, i.e., the mixed length-acceleration Thomas-Reiche-Khun sum rule, which gives important indications on the reliability of theoretical predictions of IR intensities and leads to the definition of atomic populations. Numerical evidence was found for the additivity and transferability of atomic populations, within the X-substituted alkane series.

Postscript: Untangling the Gambler's Fallacy

ERIC Educational Resources Information Center

Sun, Yanlong; Tweney, Ryan D.; Wang, Hongbin

2010-01-01

In this postscript the authors applaud Hahn and Warren's effort in their reply to remove the ambiguity in distinguishing events such as occurrence, occurrence at least once, and nonoccurrence in Hahn and Warren (2009). Still, it appears that differences between us exist regarding the nature of waiting time and its connections to the probability of…

The 2009 Nobel Prize in Chemistry: Thomas A. Steitz and the structure of the ribosome.

PubMed

Zhao, Peter

2011-06-01

Over the past 200 years, there have been countless groundbreaking discoveries in biology and medicine at Yale University. However, one particularly noteworthy discovery with profoundly important and broad consequences happened here in just the past two decades. In 2009, Thomas Steitz, the Sterling Professor of Molecular Biophysics & Biochemistry, was awarded the Nobel Prize in Chemistry for "studies of the structure and function of the ribosome," along with Venkatraman Ramakrishnan of the MRC Laboratory of Molecular Biology and Ada E. Yonath of the Weizmann Institute of Science. This article covers the historical context of Steitz's important discovery, the techniques his laboratory used to study the ribosome, and the impact that this research has had, and will have, on the future of biological and medical research.

Vatuximab(Trademark): Optimizing Therapeutic Strategies for Prostate Cancer Based on Dynamic MR Tumor Oximetry

DTIC Science & Technology

2010-01-01

159: 621-631, 2003. 37. Bourke, V. A., Zhao, D., Gilio , J., Chang, C.-H., Jiang, L., Hahn, E. W., and Mason, R. P. Correlation of Radiation...Res. 1998; 150: 549–556. 10. Bourke VA, Zhao D, Gilio J, Chang C-H, Jiang L, Hahn EW, Mason RP. Correlation of radiation response with tumor oxygen

Thomas Alva Edison—battery and device innovation in response to application's needs

NASA Astrophysics Data System (ADS)

Salkind, Alvin J.; Israel, Paul

Thomas Alva Edison, the most prolific inventor in North America, with over 1000 patents, was the descendant of early settlers from the Netherlands to the Hudson Valley region of New York/New Jersey. However, his genealogical trail encompasses many cities, provinces, states, and countries, including Holland, France, Scotland, New Amsterdam, New York, New Jersey, Nova Scotia, Ontario, Ohio, and Michigan. He was motivated to develop and invent in response to perceived needs of commercial devices and was the creator of the concept of an industrial research laboratory. His activities covered a wide-range of chemical, electrical, medical, metallurgical, entertainment, and communication devices and led to the creation of major worldwide industries. However, his expressed underlying concern was the "service it might give others". This presentation reviews commercial developments in comparison with the technologies and motivations of the time and is illustrated by material from the Rutgers University 'Edison Papers Project', Edison's personal notes found in the Edison Battery Factory and preserved by Professor Salkind, and records of The Electrochemical Society.

Propagation and head-on collisions of ion-acoustic solitons in a Thomas-Fermi magnetoplasma: Relativistic degeneracy effects

DOE Office of Scientific and Technical Information (OSTI.GOV)

Akbari-Moghanjoughi, M.

Small amplitude propagation and quasielastic head-on collision of ion-acoustic solitary waves (IASWs) are investigated in a degenerate Thomas-Fermi electron-positron-ion magnetized plasma using extended Poincare-Lighthill-Kuo reductive perturbation method for both ultrarelativistic and nonrelativistic electron/positron degeneracy cases. It is observed that both bright- and dark-type solitary shapes can exist in such plasma, depending on two critical values. The shape of ion-acoustic solitary structures as well as sign of their collision phase shifts are both determined by the same critical values. It is further revealed that relativistic degeneracy of electrons/positrons has significant effect on the propagation as well as interaction of IASWs.

Relativistic Thomas-Fermi treatment of compressed atoms and compressed nuclear matter cores of stellar dimensions

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rotondo, M.; Rueda, Jorge A.; Xue, S.-S.

The Feynman-Metropolis-Teller treatment of compressed atoms is extended to the relativistic regimes. Each atomic configuration is confined by a Wigner-Seitz cell and is characterized by a positive electron Fermi energy. The nonrelativistic treatment assumes a pointlike nucleus and infinite values of the electron Fermi energy can be attained. In the relativistic treatment there exists a limiting configuration, reached when the Wigner-Seitz cell radius equals the radius of the nucleus, with a maximum value of the electron Fermi energy (E{sub e}{sup F}){sub max}, here expressed analytically in the ultrarelativistic approximation. The corrections given by the relativistic Thomas-Fermi-Dirac exchange term are alsomore » evaluated and shown to be generally small and negligible in the relativistic high-density regime. The dependence of the relativistic electron Fermi energies by compression for selected nuclei are compared and contrasted to the nonrelativistic ones and to the ones obtained in the uniform approximation. The relativistic Feynman-Metropolis-Teller approach here presented overcomes some difficulties in the Salpeter approximation generally adopted for compressed matter in physics and astrophysics. The treatment is then extrapolated to compressed nuclear matter cores of stellar dimensions with A{approx_equal}(m{sub Planck}/m{sub n}){sup 3}{approx}10{sup 57} or M{sub core}{approx}M{sub {circle_dot}}. A new family of equilibrium configurations exists for selected values of the electron Fermi energy varying in the range 0Thomas-Fermi model in strange stars.« less

Discussion of and reply to ``Waste-to-energy: The next step in the hierarchy after the 3-Rs``

DOE Office of Scientific and Technical Information (OSTI.GOV)

Niessen, W.R.; Hahn, J.L.; Jones, K.H.

1995-11-01

In their paper Jeffrey L. Hahn and Kay H. Jones addressed the issue of what the next step should be in the hierarchy after reduction, reuse and recycling (the 3-Rs) with regards to communities managing their solid wastes. The author believes Mr. Hahn and Ms. Jones should provide literature citations or their estimation methodology and assumptions. The author questions the apparent assertion by Mr. Hahn and Ms. Jones that the greenhouse gas emission of WTE are much less than that of landfills. The relative magnitude of the maximum year and average year non-methane organic carbon emission estimates for landfills ismore » questioned. This article also contains the original authors` reply to the comments and questions.« less

Promoting medical innovation while developing sound social and business policy: a conversation with Thomas G. Roberts. Interview by Barbara J. Culliton.

PubMed

Roberts, Thomas G

2008-01-01

The development of "targeted biologics" as cancer therapy has made the field ripe for investment from the private sector and is changing the face of cancer medicine, while also raising important policy concerns about price, profit, and continued innovation. In this interview Barbara Culliton talks with Thomas Roberts, who sees this world from a unique perspective. Roberts, an oncologist, has practiced at the Massachusetts General Hospital and is currently thinking about innovation as a hedge fund manager.

Virtual Reality and Online Databases: Will "Look and Feel" Literally Mean "Look" and "Feel"? [and]"Online" Interviews Dr. Thomas A. Furness III, Virtual Reality Pioneer.

ERIC Educational Resources Information Center

Miller, Carmen

1992-01-01

The first of two articles discusses virtual reality (VR) and online databases; the second one reports on an interview with Thomas A. Furness III, who defines VR and explains work at the Human Interface Technology Laboratory (HIT). Sidebars contain a glossary of VR terms and a conversation with Toni Emerson, the HIT lab's librarian. (LRW)

Thomas Hardy's Notion of Impurity in "Far from the Madding Crowd": The Tragic Failure of a Ruined Maid or The Blessed Life of a Fallen Lady

ERIC Educational Resources Information Center

Saleh, Nafiseh Salman; Abbasi, Pyeaam

2014-01-01

As a prolific nineteenth-century novelist, Thomas Hardy witnessed how women were treated as well as the dreadful conditions in which they lived. Well aware of the nineteenth-century limitations on femininity, Hardy stood for women's downtrodden rights. Henceforth, so as to examine Hardy's personal thoughts and impressions towards the prevailing…

The politics and practice of Thomas Adeoye Lambo: towards a post-colonial history of transcultural psychiatry.

PubMed

Heaton, Matthew M

2018-03-01

This article traces the career of Thomas Adeoye Lambo, the first European-trained psychiatrist of indigenous Nigerian (Yoruba) background and one of the key contributors to the international development of transcultural psychiatry from the 1950s to the 1980s. The focus on Lambo provides some political, cultural and geographical balance to the broader history of transcultural psychiatry by emphasizing the contributions to transcultural psychiatric knowledge that have emerged from a particular non-western context. At the same time, an examination of Lambo's legacy allows historians to see the limitations of transcultural psychiatry's influence over time. Ultimately, this article concludes that the history of transcultural psychiatry might have more to tell us about the politics of the 'transcultural' than the practice of 'psychiatry' in post-colonial contexts.

'A model for the country': letters from Florence Nightingale to the architect, Thomas Worthington, on hospitals and other matters 1865-1868.

PubMed

Butler, Stella Vera F

2013-12-01

Between 1865 and 1868 the Manchester architect, Thomas Worthington and Florence Nightingale corresponded about hospital design. Worthington was involved in building hospitals for two Poor Law Unions in Manchester. The designs of both hospitals were based on the 'pavilion' principle of which Nightingale became a vocal national champion. Through five letters written by Nightingale to Worthington, the paper explores Nightingale's views focussing on her admiration for the designs, and examines the importance of these commissions for Worthington's career as a hospital architect.

Movements of fluvial Bonneville cutthroat trout in the Thomas Fork of the Bear River, Idaho-Wyoming

USGS Publications Warehouse

Colyer, W.T.; Kershner, J.L.; Hilderbrand, R.H.

2005-01-01

The majority of interior subspecies of cutthroat trout Oncorhynchus clarkii have been extirpated from large rivers by anthropogenic activities that have fragmented habitats and introduced nonnative competitors. Selective pressures against migratory behaviors and main-stem river occupation, coupled with conservation strategies that isolate genetically pure populations above barriers, have restricted gene flow and prevented expression of the fluvial life history in many populations. Existing knowledge about the movements and home range requirements of fluvial cutthroat trout is, therefore, limited. Our objectives in this study were to (1) determine the extent of seasonal home ranges and mobility of Bonneville cutthroat trout O. c. utah (BCT) in the Thomas Fork and main-stem Bear River and (2) evaluate the role of a water diversion structure functioning as a seasonal migration barrier to fish movement. We implanted 55 BCT in the Thomas Fork of the Bear River, Idaho, with radio transmitters and located them bimonthly in 1999–2000 and weekly in 2000–2001. We found fish to be more mobile than previously reported. Individuals above the diversion barrier occupied substantially larger home ranges than those below the barrier (analysis of variance: P = 0.0003; median = 2,225 m above barrier; median = 500 m below barrier) throughout our study, and they moved more frequently (mean, 0.89 movements/contact; range, 0.57–1.00) from October 2000 through March 2001 than fish below the barrier (mean, 0.45 movements/contact; range, 0.00–1.00). During the spring of both years, we located radio-tagged fish in both upstream and neighboring tributaries as far as 86 km away from our study site. Our results document the existence of a fluvial component of BCT in the Bear River and its tributaries and suggest that successful efforts at conservation of these fish must focus on main-stem habitats and the maintenance of seasonal migration corridors.

L to R: STS-98 Mission Specialist Thomas Jones, Pilot Mark Polansky, and Commander Kenneth Cockrell

NASA Technical Reports Server (NTRS)

2001-01-01

L to R: STS-98 Mission Specialist Thomas Jones, Pilot Mark Polansky, and Commander Kenneth Cockrell greet STS-92 Commander Brian Duffy, Dryden Center Director Kevin Petersen, and AFFTC Commander Major General Richard Reynolds after landing on the runway at Edwards Air Force Base, California, where NASA's Dryden Flight Research Center is located. Space Shuttle Atlantis landed at 12:33 p.m. February 20, 2001, on the runway at Edwards Air Force Base, California, where NASA's Dryden Flight Research Center is located. The mission, which began February 7, logged 5.3 million miles as the shuttle orbited earth while delivering the Destiny science laboratory to the International Space Station. Inclement weather conditions in Florida prompted the decision to land Atlantis at Edwards. The last time a space shuttle landed at Edwards was Oct. 24, 2000.

An Evaluation of Femtosecond/nanosecond Laser Induced Breakdown Spectroscopy (LIBS) for Measuring Total Particulate Emissions

DTIC Science & Technology

2009-05-07

would discourage the use of LIBS for distinguishing between gaseous and particulate species; however, recent studies by Prof. David Hahn at the...If a concept proved feasible, then it would be evaluated in more realistic environments. The program involved a joint effort between Prof. David ...multiphase ns-LIBS measurement that are most relevant to this study are illustrated in the research performed by Prof. David Hahn at the University of Florida

'Neither a borrower nor a lender be': Letters from the anaesthetist Joseph Thomas Clover to the Birmingham surgeon Joseph Sampson Gamgee.

PubMed

Ball, Christine M

2016-08-26

The London surgeon and anaesthetist, Joseph Thomas Clover (1825-1882), and the Birmingham surgeon, Joseph Sampson Gamgee (1828-1886), are well known figures in the history of medicine. Draft letters among the surviving papers of Joseph Clover have been transcribed and reveal new information about their friendship, their financial affairs and Clover's motivation to become a full-time anaesthetist. They have also led to the discovery that Gamgee was briefly imprisoned in Warwick County Goal for debt in 1859. © The Author(s) 2016.

Ambrosius Holbein's memento mori map for Sir Thomas More's Utopia. The meanings of a masterpiece of early sixteenth century graphic art.

PubMed

Bishop, M

2005-07-23

This paper describes how, and asks why, the Renaissance artist Ambrosius Holbein hid a skull within the overall design of his woodcut map of Sir Thomas More's Utopia. (Fig. 2) This map was prepared for the 1518 Froben edition of the book, and was probably commissioned by Erasmus of Rotterdam. Its identification now is made easier by the habits of interpretation with which all dentists are equipped thanks to their skill in dental radiology, and by the recognition of teeth appearing in an unlikely disguise.

A Proposed Theoretical Model Using the Work of Thomas Kuhn, David Ausubel, and Mauritz Johnson as a Basis for Curriculum and Instruction Decisions in Science Education.

ERIC Educational Resources Information Center

Bowen, Barbara Lynn

This study presents a holistic framework which can be used as a basis for decision-making at various points in the curriculum-instruction development process as described by Johnson in a work published in 1967. The proposed framework has conceptual bases in the work of Thomas S. Kuhn and David P. Ausubel and utilizes the work of several perceptual…

Alexander Graham Bell's Patent for the Telephone and Thomas Edison's Patent for the Electric Lamp. The Constitution Community: The Development of the Industrial United States (1870-1900).

ERIC Educational Resources Information Center

Schur, Joan Brodsky

In 1876 Americans held a Centennial Exhibition in Philadelphia (Pennsylvania) to celebrate the nation's birth 100 years earlier. Machinery Hall drew the most admiration and wonder. Alexander Graham Bell exhibited the first telephone, and Thomas Alva Edison presented the automatic telegraph, one of more than 1,000 inventions he would patent in his…

Interbasin groundwater flow in south central Nevada: A further comment on the discussion between Davisson et. al.. [1999a, 1999b] and Thomas [1999

USGS Publications Warehouse

Winograd, Isaac J.

2001-01-01

In their response to the comments by Thomas [1999], Davisson et al. [1999a] dismiss a large set of potentiometric measurements pertinent to an understanding of the hydrogeology of Yucca and Frenchman Flats in southcentral Nevada. This commentary is submitted to demonstrate, first, that their dismissal of this data set is unfounded and, second, that these potentiometric data call into question the central thesis of the original paper by Davisson et al. [1999b].

The Reverend Thomas Hincks FRS (1818-1899): taxonomist of Bryozoa and Hydrozoa.

PubMed

Calder, Dale R

2009-10-01

Thomas Hincks was born 15 July 1818 in Exeter, England. He attended Manchester New College, York, from 1833 to 1839, and received a B.A. from the University of London in 1840. In 1839 he commenced a 30-year career as a cleric, and served with distinction at Unitarian chapels in Ireland and England. Meanwhile, he enthusiastically pursued interests in natural history. A breakdown in his health and permanent voice impairment during 1867-68 while at Mill Hill Chapel, Leeds, forced him reluctantly to resign from active ministry in 1869. He moved to Taunton and later to Clifton, and devoted much of the rest of his life to natural history. Hincks was elected a Fellow of the Royal Society of London in 1872 for noteworthy contributions to natural history. Foremost among his publications in science were "A history of the British hydroid zoophytes" (1868) and "A history of the British marine Polyzoa" (1880). Hincks named 24 families, 52 genera and 360 species and subspecies of invertebrates, mostly Bryozoa and Hydrozoa. Hincks died 25 January 1899 in Clifton, and was buried in Leeds. His important bryozoan and hydroid collections are in the Natural History Museum, London. At least six genera and 13 species of invertebrates are named in his honour.

Thomas Young's contribution to visual optics: the Bakerian Lecture "on the mechanism of the eye".

PubMed

Atchison, David A; Charman, W Neil

2010-10-15

Thomas Young (1773-1829) carried out major pioneering work in many different subjects. In 1800 he gave the Bakerian Lecture of the Royal Society on the topic of the "mechanism of the eye": this was published in the following year (T. Young, 1801). Young used his own design of optometer to measure refraction and accommodation, and discovered his own astigmatism. He considered the different possible origins of accommodation and confirmed that it was due to change in shape of the lens rather than to change in shape of the cornea or an increase in axial length. However, the paper also dealt with many other aspects of visual and ophthalmic optics, such as biometric parameters, peripheral refraction, longitudinal chromatic aberration, depth-of-focus and instrument myopia. These aspects of the paper have previously received little attention. We now give detailed consideration to these and other less-familiar features of Young's work and conclude that his studies remain relevant to many of the topics which currently engage visual scientists.

Museum security and the Thomas Crown Affair.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Michaud, E. C.

Over the years, I've daydreamed about stealing a Vermeer, a Picasso, or Rembrandt. It tickles me, as much as watching the reboot of The Thomas Crown Affair. Why is it, do you suppose, so much fun to think about stealing a world renowned piece off the wall of a major metropolitan museum? Is it the romantic thoughts of getting away with it, walking past infrared detectors, and pressure sensors ala Indiana Jones with the sack of sand to remove the idol without triggering the security system? Is it the idea of snatching items with such fantastic prices, where the romancemore » of possessing an item of such value is less intoxicating than selling it to a private collector for it to never be seen again? I suspect others share my daydreams as they watch theater or hear of a brazen daylight heist at museums around the world, or from private collections. Though when reality sets in, the mind of the security professional kicks in. How could one do it, why would one do it, what should you do once it's done? The main issue a thief confronts when acquiring unique goods is how to process or fence them. They become very difficult to sell because they are one-of-a-kind, easy to identify, and could lead to the people involved with the theft. The whole issue of museum security takes up an ironic twist when one considers the secretive British street artist 'Banksy'. Banksy has made a name for himself by brazenly putting up interesting pieces of art in broad daylight (though many critics don't consider his work to be art) on building walls, rooftops, or even museums. I bring him up for a interesting take on what may become a trend in museum security. In March of 2005, Banksy snuck a piece of his called 'Vandalized Oil Painting' into the Brooklyn Museum's Great Historical Painting Wing, plus 3 other pieces into major museums in New York. Within several days, 2 paintings had been torn down, but 2 stayed up much longer. In his home country of the UK, a unauthorized piece he created and

Which Way Is Up? Thomas S. Kuhn's Analogy to Conceptual Development in Childhood

NASA Astrophysics Data System (ADS)

Levine, Alexander T.

In the Preface to his Structure Of Scientific Revolutions, Thomas S. Kuhn let it be known that his view of scientific development was indebted to the work of pioneering developmental psychologist Jean Piaget. Piaget's model of conceptual development in childhood, on which the child passes through several discontinuous stages, served as the template for Kuhn's reading of the history of a scientific discipline, on which mutually incommensurable periods of normal science are separated by scientific revolutions. The analogy to conceptual change in childhood pervades Kuhn's corpus, serving as the central motif in his well-known essays, A Function for Thought Experiments and Second Thoughts on Paradigms. But it is deeply problematic. For as a careful student of Piaget might note, Piaget, and the developmental psychologists he inspired, relied on the same analogy, but with the order of epistemic dependencies reversed. One begins to worry that Kuhn's use of the analogy, and its subsequent re-use by developmental psychologists, sneaks a vicious circularity into our understanding of important processes. This circularity is grounds for some concern on the part of science educators accustomed to employing such Kuhnian notions as incommensurability and paradigm.

The mine and the furnace: Francis Bacon, Thomas Russell, and early Stuart mining culture.

PubMed

Pastorino, Cesare

2009-01-01

Notwithstanding Francis Bacon's praise for the philosophical role of the mechanical arts, historians have often downplayed Bacon's connections with actual artisans and entrepreneurs. Addressing the specific context of mining culture, this study proposes a rather different picture. The analysis of a famous mining metaphor in The Advancement of Learning shows us how Bacon's project of reform of knowledge could find an apt correspondence in civic and entrepreneurial values of his time. Also, Bacon had interesting and so far unexplored links with the early modern English mining enterprises, like the Company of Mineral and Battery Works, ofwhich he was a shareholder. Moreover, Bacon's notes in a private notebook, Commentarius Solutus, and records of patents of invention, allow us to start grasping Bacon's connections with the metallurgist and entrepreneur Thomas Russell. Lastly, this paper argues that, to fully understand Bacon's links with the world of Stuart technicians and entrepreneurs, it is necessary to consider a different and insufficiently studied aspect of Bacon's interests, namely his work as patents referee while a Commissioner of Suits.

Nanocomposites for Enhanced Structural Integrity

DTIC Science & Technology

2007-09-11

Yong and H.T. Hahn, "Kevlar/Vinyl Ester Composites with SiC Nanoparticles ," SAMPE 2004 Proc. ( CD ROM), May 2004. C-6. M. Lui and H.T. Hahn...34 Nanoparticle -Based Mitigation of fiber Print-Through in Composite Mirrors," Proc. American Society for Composites, 20’h Technical Conference ( CD ROM), Sept. 2005...the graphene layers. Microwave radiation aids in drying and results in further separation of the sheets. Thermogravimetric analysis indicates that the

Serum hepcidin-25 may replace the ferritin index in the Thomas plot in assessing iron status in anemic patients.

PubMed

Thomas, C; Kobold, U; Balan, S; Roeddiger, R; Thomas, L

2011-04-01

Biochemical markers of iron deficiency do not distinguish iron-deficient anemia (IDA) from the anemia of chronic disease (ACD) and the combined state of ACD/IDA. Serum hepcidin-25 might be a marker resolving this problem. We investigated the extent to which serum hepcidin-25 enables the differentiation of the states above in comparison with the ferritin index plot, the so-called Thomas plot [soluble transferrin receptor (sTfR)/log ferritin and the reticulocyte hemoglobin content (CHr)]. Serum hepcidin-25 was determined in 155 anemic patients who were classified as having latent iron deficiency (latent ID), IDA, ACD, or ACD/IDA using the ferritin index plot (Thomas plot). Hepcidin-25 was determined using an isotope-dilution micro-HPLC-tandem mass spectrometry method. The ability to discriminate among these states based on serum hepcidin-25 alone or in combination with the CHr was evaluated in a receiver operating characteristic curve analysis and a comparison with the recently established ferritin index plot. Serum hepcidin-25 correlated with ferritin and the ferritin index. Use of a hepcidin-25 cutoff level of ≤4 nmol/l allowed the differentiation of IDA from ACD and ACD/IDA. Furthermore, the discrimination of ACD/IDA from ACD required combination with CHr in a new plot (hepcidin-25 and the CHr). The hepcidin-25 plot and the ferritin index plot showed a good correspondence in the differentiation of iron states in patients with anemia. Patients with IDA can be differentiated from ACD and ACD/IDA but not ACD from ACD/IDA based on hepcidin-25 alone. The combination of hepcidin-25 with CHr in the hepcidin-25 plot was useful for the differentiation of the states above. © 2010 Blackwell Publishing Ltd.

'What's the ethics of that?' A Conversation with Thomas O. Pyle. Interview by Donald M. Berwick and Madge Kaplan.

PubMed

Pyle, Thomas O

2008-01-01

Thomas O. Pyle served in the top echelons of the Harvard Community Health Plan (HCHP) for nineteen years. In that time, HCHP became the largest health maintenance organization (HMO) in New England, and its reputation for innovation and entrepreneurship rose to the top ranks of the industry. HCHP pioneered the automated medical record, nurse practitioners, quality measurement, and sophisticated disease management. In this interview, Berwick and the Institute for Healthcare Improvement's Madge Kaplan explore Pyle's background, his interpretation of HCHP's evolution and eventual transition to a much different organization, and his recommendations for the future. At the time of this interview, Tom was suffering from advanced pancreatic cancer, from which he died ten weeks later, 18 July 2007.

Numerical convergence of the self-diffusion coefficient and viscosity obtained with Thomas-Fermi-Dirac molecular dynamics.

PubMed

Danel, J-F; Kazandjian, L; Zérah, G

2012-06-01

Computations of the self-diffusion coefficient and viscosity in warm dense matter are presented with an emphasis on obtaining numerical convergence and a careful evaluation of the standard deviation. The transport coefficients are computed with the Green-Kubo relation and orbital-free molecular dynamics at the Thomas-Fermi-Dirac level. The numerical parameters are varied until the Green-Kubo integral is equal to a constant in the t→+∞ limit; the transport coefficients are deduced from this constant and not by extrapolation of the Green-Kubo integral. The latter method, which gives rise to an unknown error, is tested for the computation of viscosity; it appears that it should be used with caution. In the large domain of coupling constant considered, both the self-diffusion coefficient and viscosity turn out to be well approximated by simple analytical laws using a single effective atomic number calculated in the average-atom model.

Numerical convergence of the self-diffusion coefficient and viscosity obtained with Thomas-Fermi-Dirac molecular dynamics

NASA Astrophysics Data System (ADS)

Danel, J.-F.; Kazandjian, L.; Zérah, G.

2012-06-01

Computations of the self-diffusion coefficient and viscosity in warm dense matter are presented with an emphasis on obtaining numerical convergence and a careful evaluation of the standard deviation. The transport coefficients are computed with the Green-Kubo relation and orbital-free molecular dynamics at the Thomas-Fermi-Dirac level. The numerical parameters are varied until the Green-Kubo integral is equal to a constant in the t→+∞ limit; the transport coefficients are deduced from this constant and not by extrapolation of the Green-Kubo integral. The latter method, which gives rise to an unknown error, is tested for the computation of viscosity; it appears that it should be used with caution. In the large domain of coupling constant considered, both the self-diffusion coefficient and viscosity turn out to be well approximated by simple analytical laws using a single effective atomic number calculated in the average-atom model.

Digital Archives - Thomas M. Bown's Bighorn Basin Maps: The Suite of Forty-Four Office Master Copies

USGS Publications Warehouse

McKinney, Kevin C.

2001-01-01

This CD-ROM is a digitally scanned suite of master 'locality' maps produced by Dr. Thomas M. Bown. The maps are archived in the US Geological Survey Field Records. The maps feature annual compilations of newly established fossil (nineteen 7.5 degree maps) of central basin data collections. This master suite of forty-four maps represents a considerably broader geographic range within the basin. Additionally, three field seasons of data were compiled into the master suite of maps after the final editing of the Professional Paper. These maps are the culmination of Dr. Bown's Bighorn Basin research as a vertebrate paleontologist for the USGS. Data include Yale, Wyoming, Duke, Michigan and USGS localities. Practical topographic features are also indicated, such as jeep=trail access, new reservoirs, rerouted roadbeds, measured sections, fossil reconnaissance evaluations (G=good, NG=no good and H=hideous), faults, palcosol stages, and occasionally 'camp' vernacular for locality names.

Catholic unionism and heterodoxy in Irish Victorian Medicine: A biography of Thomas More Madden (1838-1902).

PubMed

Kennerk, Barry

2016-05-01

It is not easy to précis the life of gynaecologist and obstetrician Thomas More Madden. Aside from his prolific penmanship and championing of societal issues, a study of his life serves to demonstrate the crossroads at which orthodox medicine stood during the late nineteenth century - a period of transition between 'heroic' and modern health care. Reflecting this state of flux, Madden wrote several books about childbirth but he was also interested in heterodox subjects including heliotherapy and hydrotherapy. His political beliefs were no less eclectic. On one hand he was a Catholic 'Unionist', in favour of maintaining Ireland's place in the UK, but his writing was also imbued with the spirit of the Gaelic literary revival. Through his work he tried to make a case, not just for Ireland's place in the western health care tradition but also for its contribution to contemporary medicine. © The Author(s) 2014.

Thomas Willis, the Restoration and the First Works of Neurology

PubMed Central

Caron, Louis

2015-01-01

This article provides a new consideration of how Thomas Willis (1621–75) came to write the first works of ‘neurology’, which was in its time a novel use of cerebral and neural anatomy to defend philosophical claims about the mind. Willis’s neurology was shaped by the immediate political and religious contexts of the English Civil War and Restoration. Accordingly, the majority of this paper is devoted to uncovering the political necessities Willis faced during the Restoration of the English monarchy in 1660, with particular focus on the significance of Willis’s dedication of his neurology and natural philosophy to the Archbishop of Canterbury, Gilbert Sheldon. Because the Restoration of Charles II brought only a semblance of order and peace, Willis and his allies understood the need for a coherent defense of the authority of the English church and its liturgy. Of particular importance to Sheldon and Willis (and to others in Sheldon’s circle) were the specific ceremonies described in the Book of Common Prayer, a manual that directed the congregation to assume various postures during public worship. This article demonstrates that Willis’s neurology should be read as an intervention in these debates, that his neurology would have been read at the time as an attempt to ground orthodox worship in the structure of the brain and nerves. The political necessities that helped to shape Willis’s project also help us to better understand Willis’s innovative insistence that philosophical statements about the mind should be formulated only after a comprehensive anatomical investigation of the brain and nerves. PMID:26352303

Thomas Birch's 'Weekly Letter' (1741-66): correspondence and history in the mid-eighteenth-century Royal Society.

PubMed

Ellis, Markman

2014-09-20

Thomas Birch (1705-66), Secretary of the Royal Society from 1752 to 1765, and Philip Yorke, second Earl of Hardwicke (1720-90), wrote a 'Weekly Letter' from 1741 to 1766, an unpublished correspondence of 680 letters now housed in the British Library (Additional Mss 35396-400). The article examines the dimensions and purposes of this correspondence, an important conduit of information for the influential coterie of the 'Hardwicke circle' gathered around Yorke in the Royal Society. It explores the writers' self-conception of the correspondence, which was expressed in deliberately archaic categories of seventeenth-century news exchange, such as the newsletter, aviso and a-la-main. It shows how the letter writers negotiated their difference in status through the discourse of friendship, and concludes that the 'Weekly Letter' constituted for the correspondents a form of private knowledge, restricted in circulation to their discrete group, and as such unlike the open and networked model of Enlightenment science.

Notes made by Thomas Harriot on the treatises of François Viète

NASA Astrophysics Data System (ADS)

Stedall, Jacqueline

2008-03-01

In the Archive for History of Exact Sciences in 1979 Johannes Lohne published "A survey of Harriot's scientific writings". This has remained until now the only survey of the surviving manuscripts of Thomas Harriot (ca. 1560-1621). Lohne's paper is still a useful resource but it touches only very sketchily on Harriot's debt to François Viète (1540-1603), even though dozens of Harriot's manuscript sheets are filled with re-workings of problems or theorems from Viète's various treatises. Many of these sheets carry overt references to page or proposition numbers in Viète's publications, while others reveal themselves through inspection of the problem they contain. The primary aim of the present paper is to offer a new survey, of precisely those sheets where Harriot can be seen working on the mathematics of Viète. In doing so, it also offers an insight into the reception of Viète's work within his own lifetime at the hands of one of his most astute and able readers.

The correspondence of Thomas Dale (1700-1750): Botany in the transatlantic Republic of Letters.

PubMed

Cook, William J

2012-03-01

This paper seeks to provide a full account of the life and career of Dr. Thomas Dale (1700-1750), with particular reference to his botanical works and correspondence. Born in Hoxton, London, Dale studied medicine at Leiden and engaged fully in the social, literary and epistolary network in which botany was practised in eighteenth-century England. In 1730, however, Dale relocated to the British colonial port of Charles Town, South Carolina. Here he continued to engage in a transatlantic network of botanical exchange and discussion, corresponding on equal and reciprocal terms with his former colleagues in England. Where Dale differs from naturalists in South Carolina before him is that his motives for pursuing botany and for corresponding with English naturalists were located firmly in the New World. Such a conclusion forms a valuable, albeit small contribution to models for the development of national scientific cultures in the imperial world. Similarly, Dale's pursuit of botanical information in South Carolina provides a small amount of material with which to illustrate currently fashionable models for the mediated exchange and circulation of scientific knowledge. Copyright © 2011 Elsevier Ltd. All rights reserved.

Modified Thomas splint-cast combination for the management of limb fractures in small equids.

PubMed

Ladefoged, Søren; Grulke, Sigrid; Busoni, Valeria; Serteyn, Didier; Salciccia, Alexandra; Verwilghen, Denis

2017-04-01

To describe the management and outcome of limb fractures in small domestic equids treated with a modified Thomas splint-cast combination (MTSCC). Retrospective case series. Client owned horses and donkeys. Medical records, including radiographs, were reviewed for details of animals diagnosed with a limb fracture and treated by external coaptation using a MTSCC (2001-2012). Follow-up >6 months after discharge was obtained via telephone consultation with owners or veterinarians. Nine horses and 4 donkeys were identified with fractures of the tibial diaphysis (n = 4), ulna (n = 3), distal metatarsus (n = 2), proximal metacarpus (n = 1), radial diaphysis (n = 1), calcaneus (n = 1), and distal femoral physis (n = 1). Follow-up was available for 12 equids, of which 8 (67%) recovered from the fracture and became pasture sound. Six equids developed obvious external deformation of the affected limb. Selected small equids with long bone fractures, and without athletic expectations, can be managed with external coaptation using an MTSCC. The owner should be informed that the treatment is considered a salvage procedure. © 2017 The American College of Veterinary Surgeons.

[Thomas H.Huxley--the naval doctor who became Darwin's bulldog].

PubMed

Hauge, A

2000-12-10

Thomas H. Huxley (1825-1895) was an English physician and biologist who had a deep impact on the Victorian age. More than any other at his time he introduced scientifically based values. As a member of London's school board he brought science into the curriculum, encouraging school-children to ask questions and to make their own observations. Huxley came from a lower middle class family with little money. By sheer determination and hard work he managed to get a medical education at Charing Cross Hospital Medical School. He then obtained a posting on H.M.S. Rattlesnake, which gave him a chance to explore the southern seas and to study marine species. The results were published by the Royal Society of which Huxley became a member at the age of 26, and later its president. After several years of uncertainty he secured a position at the Royal School of Mines, which he transformed into the Imperial College of Science. He was a prolific scientist with wide interests, doing valuable work in paleontology, taxonomy and ethnology. Huxley wrote numerous essays on philosophy and scientific subjects. He coined the word agnostic to explain his attitude to Christian dogma. His style was clear and direct, and his essays still read very well. However, Huxley is now mostly, perhaps unfairly, remembered for his defence of Darwin's theory of evolution. In his book Evidence as to man's place in nature, Huxley, in contrast to Darwin, deals with the evolution of humans, mainly based on comparative anatomy. Huxley advocated a firmly held belief that scientific truths will have a liberating effect on the minds of men. His lectures on scientific subjects attracted large audiences of people who had not had the benefit of a higher education.

Obituary: Thomas Michael Donahue, 1921-2004

NASA Astrophysics Data System (ADS)

Gombosi, Tamás I.

2004-12-01

Thomas M. Donahue, one of the nation's leading space and planetary scientists and a pioneer of space exploration, died Saturday October 16, 2004, from complications following heart surgery. The Edward H. White II Distinguished University Professor of Planetary Science at the University of Michigan, Tom shaped space exploration through his scientific achievements and policy positions. His work started with the first use of sounding rockets following World War II and continued for almost 60 years. Tom was born in Healdton, Oklahoma on May 23, 1921 to Robert Emmet and Mary (Lyndon) Donahue. His father was a plumber in the oil fields when Tom was born (Healdton OK was an oil town) and worked as a plumber in Kansas City for a time. Tom grew up in Kansas City, graduating in 1942 from Rockhurst College in that city with degrees in classics and physics. His graduate work in physics at Johns Hopkins University was interrupted by service in the Army Signal Corps. He obtained his PhD degree in atomic physics from Hopkins in the fall of 1947. After three years as a post-doctoral research associate and assistant professor at Hopkins, Tom joined the University of Pittsburgh Physics Department in 1951. At Pittsburgh he organized an atomic physics and atmospheric science program that led to experimental and theoretical studies of the upper atmosphere of the Earth and other solar system planets with instruments flown on sounding rockets and spacecraft. He became Professor of Physics in 1959 and eventually Director of the Laboratory for Atmospheric and Space Sciences and the Space Research Coordination Center at the University. In 1960 he spent a sabbatical year on a Guggenheim Fellowship at the Service d'Aeronomie in Paris, which began collaborations with French colleagues that flourished for more than 40 years. In 1974 he became the Chairman of the Atmospheric and Oceanic Science Department, University of Michigan, a position he held until 1981. In 1986, he was named the Henry

Carbon Dioxide, Hydrographic, and Chemical Data Obtained During the R/V Thomas G. Thompson Cruise in the Pacific Ocean

DOE Office of Scientific and Technical Information (OSTI.GOV)

Sabine, C.L.; Key, R.M.; Hall, M.

1999-08-01

This data documentation discusses the procedures and methods used to measure total carbon dioxide (TCO2), total alkalinity (TALK), and radiocarbon (delta 14C), at hydrographic stations, as well as the underway partial pressure of CO2 (pCO2) during the R/V Thomas G. Thompson oceanographic cruise in the Pacific Ocean (Section P10). Conducted as part of the World Ocean Circulation Experiment (WOCE), the cruise began in Suva, Fiji, on October 5, 1993, and ended in Yokohama, Japan, on November 10, 1993. Measurements made along WOCE Section P10 included pressure, temperature, salinity [measured by conductivity temperature, and depth sensor (CTD)], bottle salinity, bottle oxygen,more » phosphate, nitrate, silicate, chlorofluorocarbons (CFC-11, CFC-12), TCO2, TALK, delta 14C, and underway pCO2.« less

Optical oscillator strength distribution of amino acids from 3 to 250 eV and examination of the Thomas Reiche Kuhn sum rule

NASA Astrophysics Data System (ADS)

Kamohara, Masumi; Izumi, Yudai; Tanaka, Masafumi; Okamoto, Keiko; Tanaka, Masahito; Kaneko, Fusae; Kodama, Yoko; Koketsu, Toshiyuki; Nakagawa, Kazumichi

2008-10-01

Absorption spectra of thin films of glycine (Gly), alanine (Ala), valine (Val), serine (Ser), leucine (Leu), phenylalanine (Phe) and methinine (Met) were measured in absolute values of absorption cross section σ( E) for the photon energy E from 3 to 250 eV. We translated σ( E) into the optical oscillator strength distribution df/dE and we examined the Thomas-Reiche-Kuhn sum rule [Hirschfelder, J.O., Curtiss, C.F., Bird, R.B., 1954. Molecular Theory of Gases and Liquids. Wiley, New York, p. 890]. We concluded that T-R-K sum rule was correctly applicable for such relatively large size of biomolecules.

Statistical mechanics of light elements at high pressure. VI - Liquid-state calculations with Thomas-Fermi-Dirac theory

NASA Technical Reports Server (NTRS)

Macfarlane, J. J.

1984-01-01

A model free energy is developed for hydrogen-helium mixtures based on solid-state Thomas-Fermi-Dirac calculations at pressures relevant to the interiors of giant planets. Using a model potential similar to that for a two-component plasma, effective charges for the nuclei (which are in general smaller than the actual charges because of screening effects) are parameterized, being constrained by calculations at a number of densities, compositions, and lattice structures. These model potentials are then used to compute the equilibrium properties of H-He fluids using a charged hard-sphere model. The results find critical temperatures of about 0 K, 500 K, and 1500 K, for pressures of 10, 100, and 1000 Mbar, respectively. These phase separation temperatures are considerably lower (approximately 6,000-10,000 K) than those found from calculations using free electron perturbation theory, and suggest that H-He solutions should be stable against phase separation in the metallic zones of Jupiter and Saturn.

Venous thromboembolism capture on electronic systems in obstetrics patients at St Thomas' Hospital

PubMed Central

Ahmad, Aminah Noor; Byrne, Megan Leyla; Imambaccus, Nazia; Hubert, Dawid; Gateley, Anna; Abdullahi Idle, Salwa; Lloyd, Jilly

2016-01-01

Venous thromboembolism (VTE) is one of the leading causes of maternal mortality in the UK. Therefore, timely VTE risk assessment is essential in all obstetrics patients. The Commissioning for Quality and Innovation (CQUIN) payment framework set a target for trusts to complete a VTE risk assessment within 24 hours of admission for 95% of patients. A combination of factors, including lack of integration between multiple IT systems, means that this CQUIN target is currently not being met for obstetric patients in the Hospital Birth Centre at Guys and St Thomas' NHS Trust. This project aims to increase staff awareness of this issue and educate them regarding the correct procedure for VTE assessment. Trialled methods included reminders at staff handovers, use of magnets on the patient whiteboard, posters and stickers displayed around the unit and a loyalty card scheme as incentive to complete assessments. Initial average completion rate was 20.7%, which increased to 67.5% after the first plan, do, study, act (PDSA) cycle with a slight drop to 65.7% after the second cycle. Completion rates increased to 92.3% on the last day of the third PDSA cycle. Although we did not reach the 95% target, we have raised awareness of the importance of recording VTE assessment on electronic systems, and hope we have created sustainable change. PMID:27933149

[Universal elixir of Thomas-Nicolas Larcheret (1819) and his elixirian and normal doctrine].

PubMed

Bonnemain, Bruno

2014-06-01

Thomas-Nicolas Larcheret, teacher in singing, declamation, guitar or lyre and violin, author of music and books, but also inventor of the universal elixir by his name, is a good example of quack of the 19th century. His book Larcheregium ou Dictionnaires spéciaux de mon élixir, ainsi que toute ma doctrine et de mes adhérens (Larcheregium or special Dictionaries of my elixir, as well as all my doctrine and my adherents), published in 1819, deserves a deep study to show the most frequently used arguments by the ones who emphasize the value of their secret remedy. The opportunities are there to present themselves as victims of medical authorities, experts and authorities as a whole, that do not recognize the value of their product. The only acceptable judge for them is the experience reported by the patients who are able to demonstrate the efficacy of the product since they do buy it (probably at a very high price). From this viewpoint, the book of Larcheret is a good example of turning the authorities down and of diatribe against physicians and pharmacists. It is also the demonstration that, even with the Empire's new regulations against secret remedies and quacks, they will still persist for a large part of the 19th century in France.

Quasi-four-body treatment of charge transfer in the collision of protons with atomic helium: II. Second-order non-Thomas mechanisms and the cross sections

NASA Astrophysics Data System (ADS)

Safarzade, Zohre; Akbarabadi, Farideh Shojaei; Fathi, Reza; Brunger, Michael J.; Bolorizadeh, Mohammad A.

2018-05-01

A fully quantum mechanical four-body treatment of charge transfer collisions between energetic protons and atomic helium is developed here. The Pauli exclusion principle is applied to both the wave function of the initial and final states as well as the operators involved in the interaction. Prior to the collision, the helium atom is assumed as a two-body system composed of the nucleus, He2+, and an electron cloud composed of two electrons. Nonetheless, four particles are assumed in the final state. As the double interactions contribute extensively in single charge transfer collisions, the Faddeev-Lovelace-Watson scattering formalism describes it best physically. The treatment of the charge transfer cross section, under this quasi-four-body treatment within the FWL formalism, showed that other mechanisms leading to an effect similar to the Thomas one occur at the same scattering angle. Here, we study the two-body interactions which are not classically described but which lead to an effect similar to the Thomas mechanism and finally we calculate the total singlet and triplet amplitudes as well as the angular distributions of the charge transfer cross sections. As the incoming projectiles are assumed to be plane waves, the present results are calculated for high energies; specifically a projectile energy of 7.42 MeV was assumed as this is where experimental results are available in the literature for comparison. Finally, when possible we compare the present results with the other available theoretical data.

Fine Sediment Erosion and Transport to the Near Coastal Zone from Watersheds of St. Thomas, USVI

NASA Astrophysics Data System (ADS)

Benoit, G.; Xuan, Z.

2014-12-01

The US Virgin Islands' landscape is characterized by steep slopes and short distances from ridge peaks to fringing reefs. Fine-grained sediments eroded from predominantly thin soils may be transported rapidly by streams (locally called guts) to the sea and cause stress to corals. We have studied erosion and transport processes on St Thomas by three methods: (1) continuous monitoring of suspended matter in one of the island's few perennial streams, Dorothea Gut, (2) measurement of 137Cs inventories in soil cores taken across the landscape, and (3) evaluation of sediment captured in most of the island's coastal ponds, through which a significant portion of runoff must pass. We find that, for areas that have not been recently disturbed, watersheds retain fine sediments surprisingly well. On the other hand, small patches of land, like building lots that have been recently disturbed and poorly managed, can produce disproportionate amounts of fine sediment. These results differ somewhat from nearby St John, USVI, where unpaved roads are the major source of eroded sediments.

Thomas McKeown and Archibald Cochrane: a journey through the diffusion of their ideas.

PubMed Central

Alvarez-Dardet, C; Ruiz, M T

1993-01-01

In the 1970s Thomas McKeown and Archibald L Cochrane were two of the most influential voices in criticizing the dominance of medical thinking. A bibliometric study of the citations to McKeown's The Role of Medicine: Dream, Mirage or Nemesis and Cochrane's Effectiveness and Efficiency: Random Reflections on Health Services was performed from the publication of each book until 1988 to study how their ideas have been disseminated. During the study period 430 papers in the Science Citation Index or the Social Sciences Citation Index cited Cochrane's book, 133 cited McKeown's, and 166 cited both. The citations came mainly from original papers published in journals of internal medicine or public health and epidemiology (35%) and written by authors from the United States or the United Kingdom. Cochrane's book was cited most frequently in medical journals, suggesting a higher degree of penetration of his ideas among medical scientists. Although the dominance of original papers among the citations suggests that these books have been important in stimulating new knowledge, the main problems that McKeown and Cochrane identified--namely, the relatively small impact of clinical medicine on health outcomes and the poor use of scientific methods in clinical practice--are still with us. PMID:8499857

Crew of STS-98, L to R: Mission Specialists Robert L. Curbeam, Thomas D. Jones, and Marsha S. Ivins,

NASA Technical Reports Server (NTRS)

2001-01-01

The crew of STS-98 poses for a group photo shortly before leaving NASA's Dryden Flight Research Center after a successful landing of the Space Shuttle Atlantis the day before. L to R: Mission Specialists Robert L. Curbeam, Thomas D. Jones, and Marsha S. Ivins, Commander Kenneth D. Cockrell, and Pilot Mark L. Polansky. Space Shuttle Atlantis landed at 12:33 p.m. February 20, 2001, on the runway at Edwards Air Force Base, California, where NASA's Dryden Flight Research Center is located. The mission, which began February 7, logged 5.3 million miles as the shuttle orbited earth while delivering the Destiny science laboratory to the International Space Station. Inclement weather conditions in Florida prompted the decision to land Atlantis at Edwards. The last time a space shuttle landed at Edwards was Oct. 24, 2000.

[Thomas' shunt for hemodialysis: dysfunction and its percutaneous treatment].

PubMed

Gallego, J J; Santos, E; Méndez, J V; Coronel, F; Torrente, J; Holguín, A; Moreno, R

2003-01-01

To assess the usefulness of percutaneous treatment of abnormalities of the venous tree in extending the survival of external Thomas shunts (TS). Twelve cases of TS were included in a hemodialysis access fistula dysfunction monitoring program and were followed for up to 48 months. The abnormalities found were treated by percutaneous transluminal angioplasty (PTA) or thrombolysis and PTA. Survival curves and the Kaplan-Meier method were used to calculate the likelihood of primary patency (P1), secondary patency (P2), and overall patency (OP). A total of 61 interventions were performed during the period of follow-up. On 12 occasions the fistula was thrombosed; in the rest, increased venous pressure to 150 mmHg or higher was detected during dialysis. Fistulography was performed after washing the thrombosed fistulas with urokinase, and revealed one or more of the following angiographic signs: 1) a short reduction of more than 50% in lumen caliber in the femoral vein adjacent to the anastomosis, present in 52% of the cases (fig. 1); 2) imaging a "jet" of contrast material at the site of entry of the shunt into the femoral vein (fig. 2), present in 22% of the cases; and 3) a filling defect or "flap" at the same site, owing to hyperplastic tissue or piece of thrombus adhering to the intima, present in 34% of the cases (figs. 3-5). This last-mentioned finding ordinarily gave rise to a "valve" effect, whereby injection into the venous branch was feasible but aspiration from the venous branch was difficult or impossible. PTA was carried out and attained anatomical and functional success in 100% of cases. PI was 58%, 33%, 8%, and 0% at 6, 12, 24, and 36 months, respectively; P2 was 100%, 75%, 58%, and 25%; respectively, at those same times. The comparison of the PI and P2 curves was statistically significant; p < 0.001 (table 1). OP was 83%, 66%, 50% and 41% at 12, 24, 36 and 48 months. The comparison of the PI surgical and OP curves was statistically significant; p < 0

Statistical mechanics of light elements at high pressure. V Three-dimensional Thomas-Fermi-Dirac theory. [relevant to Jovian planetary interiors

NASA Technical Reports Server (NTRS)

Macfarlane, J. J.; Hubbard, W. B.

1983-01-01

A numerical technique for solving the Thomas-Fermi-Dirac (TED) equation in three dimensions, for an array of ions obeying periodic boundary conditions, is presented. The technique is then used to calculate deviations from ideal mixing for an alloy of hydrogen and helium at zero temperature and high presures. Results are compared with alternative models which apply perturbation theory to calculation of the electron distribution, based upon the assumption of weak response of the electron gas to the ions. The TFD theory, which permits strong electron response, always predicts smaller deviations from ideal mixing than would be predicted by perturbation theory. The results indicate that predicted phase separation curves for hydrogen-helium alloys under conditions prevailing in the metallic zones of Jupiter and Saturn are very model dependent.

Obituary: Thomas C. Van Flandern (1940-2009)

NASA Astrophysics Data System (ADS)

Dunham, David; Slabinski, Victor

2011-12-01

Dr. Thomas Charles Van Flandern, an expert in celestial mechanics and cosmology, died January 9, 2009 in Seattle, Washington, of colon cancer. He was 68. Van Flandern was an astronomer at the U.S. Naval Observatory from 1963 to 1983. He developed software to predict and analyze lunar occultations to improve lunar orbital and fundamental star catalog data. In later years he championed increasingly controversial theories. But his 1978 prediction that some asteroids have natural satellites, which was almost universally rejected, was verified when the Galileo spacecraft photographed Dactyl, a satellite of (243) Ida, during its flyby in 1993. Besides astronomy and computers, he had strong interests in biochemistry and nutrition, and he ran a business selling personal computers in the 1980s. Tom Van Flandern was born June 26, 1940 in Cleveland, Ohio, the first child of Robert F. Van Flandern and Anna Mary Haley. His father, a police officer, left the family when Tom Van Flandern was 5. His mother died when he was 16; he and his siblings then lived with their grandmother, Margery Jobe, until he went to college. Tom Van Flandern became interested in astronomy as a child. He used his first telescope, purchased with newspaper delivery earnings, to observe lunar occultations, and then learned how to predict them, sparking a life-long passion for dynamical astronomy. While attending St. Ignatius High School, Van Flandern and fellow student Thomas Petrie organized the Cleveland Moonwatch team to observe the first artificial satellites, the only team without an adult organizer. In 1958, Tom Van Flandern entered Xavier University where he led the Cincinnati Moonwatch team. He learned computer programming at a summer job with General Electric and wrote software to calculate "look angles" from orbital elements. The Cincinnati team became a top producer of observations using these predictions. Tom obtained a B.S. in mathematics from Xavier in 1962. He spent the next year at

L to R: STS-98 Mission Specialist Thomas Jones, Pilot Mark Polansky, and Commander Kenneth Cockrell greet STS-92 Commander Brian Duffy, Dryden Center Director Kevin Petersen, and AFFTC Commander Major General Richard Reynolds

NASA Image and Video Library

2001-02-20

L to R: STS-98 Mission Specialist Thomas Jones, Pilot Mark Polansky, and Commander Kenneth Cockrell greet STS-92 Commander Brian Duffy, Dryden Center Director Kevin Petersen, and AFFTC Commander Major General Richard Reynolds after landing on the runway at Edwards Air Force Base, California, where NASA's Dryden Flight Research Center is located.

Thomas Birch's ‘Weekly Letter’ (1741–66): correspondence and history in the mid-eighteenth-century Royal Society

PubMed Central

Ellis, Markman

2014-01-01

Thomas Birch (1705–66), Secretary of the Royal Society from 1752 to 1765, and Philip Yorke, second Earl of Hardwicke (1720–90), wrote a ‘Weekly Letter’ from 1741 to 1766, an unpublished correspondence of 680 letters now housed in the British Library (Additional Mss 35396–400). The article examines the dimensions and purposes of this correspondence, an important conduit of information for the influential coterie of the ‘Hardwicke circle’ gathered around Yorke in the Royal Society. It explores the writers' self-conception of the correspondence, which was expressed in deliberately archaic categories of seventeenth-century news exchange, such as the newsletter, aviso and a-la-main. It shows how the letter writers negotiated their difference in status through the discourse of friendship, and concludes that the ‘Weekly Letter’ constituted for the correspondents a form of private knowledge, restricted in circulation to their discrete group, and as such unlike the open and networked model of Enlightenment science. PMID:25254279

BDDC algorithms with deluxe scaling and adaptive selection of primal constraints for Raviart-Thomas vector fields

DOE Office of Scientific and Technical Information (OSTI.GOV)

Oh, Duk -Soon; Widlund, Olof B.; Zampini, Stefano

Here, a BDDC domain decomposition preconditioner is defined by a coarse component, expressed in terms of primal constraints, a weighted average across the interface between the subdomains, and local components given in terms of solvers of local subdomain problems. BDDC methods for vector field problems discretized with Raviart-Thomas finite elements are introduced. The methods are based on a new type of weighted average an adaptive selection of primal constraints developed to deal with coefficients with high contrast even inside individual subdomains. For problems with very many subdomains, a third level of the preconditioner is introduced. Assuming that the subdomains aremore » all built from elements of a coarse triangulation of the given domain, and that in each subdomain the material parameters are consistent, one obtains a bound for the preconditioned linear system's condition number which is independent of the values and jumps of these parameters across the subdomains' interface. Numerical experiments, using the PETSc library, are also presented which support the theory and show the algorithms' effectiveness even for problems not covered by the theory. Also included are experiments with Brezzi-Douglas-Marini finite-element approximations.« less

BDDC algorithms with deluxe scaling and adaptive selection of primal constraints for Raviart-Thomas vector fields

DOE PAGES

Oh, Duk -Soon; Widlund, Olof B.; Zampini, Stefano; ...

2017-06-21

Here, a BDDC domain decomposition preconditioner is defined by a coarse component, expressed in terms of primal constraints, a weighted average across the interface between the subdomains, and local components given in terms of solvers of local subdomain problems. BDDC methods for vector field problems discretized with Raviart-Thomas finite elements are introduced. The methods are based on a new type of weighted average an adaptive selection of primal constraints developed to deal with coefficients with high contrast even inside individual subdomains. For problems with very many subdomains, a third level of the preconditioner is introduced. Assuming that the subdomains aremore » all built from elements of a coarse triangulation of the given domain, and that in each subdomain the material parameters are consistent, one obtains a bound for the preconditioned linear system's condition number which is independent of the values and jumps of these parameters across the subdomains' interface. Numerical experiments, using the PETSc library, are also presented which support the theory and show the algorithms' effectiveness even for problems not covered by the theory. Also included are experiments with Brezzi-Douglas-Marini finite-element approximations.« less

Recent settlement trends in Panulirus argius (Decapoda: Palinuridae) pueruli around St. Thomas, U.S. Virgin Islands.

PubMed

Kojis, B L; Quinn, N J; Caseau, S M

2003-06-01

Puerulus settlement of the western Atlantic spiny lobster, Panulirus argus, was monitored using modified Witham collectors from December 1996 to March 1998 at seven sites around St. Thomas, U.S. Virgin Islands. A total of 605 pueruli were collected from 553 samples for a catch per unit effort (CPUE) for all sites of 1.09 pueruli. The greatest settlement occurred on sites within a recently declared marine reserve, which had an overall CPUE of 1.77 pueruli. Settlement in non-reserve sites was much lower with an overall CPUE of 0.31 pueruli. Pueruli recruitment declined 67% at inshore sites and 53% at offshore sites between July 1992 - April 1994 and February 1997 - March 1998. Also, only 10% of months sampled in 1997-98 had a CPUE > 0.5 compared to 55% in a previous study in 1992 - 1993. Despite the decline in pueruli CPUE in 1997-98 compared to 1992-94, the commercial lobster catch in the 2000-01 fishing season, and by inference the adult lobster population (legal lobster size in the US Virgin Islands is > or = 3.5 cm carapace length), remained stable.

Different mechanisms of cluster explosion within a unified smooth particle hydrodynamics Thomas-Fermi approach: Optical and short-wavelength regimes compared

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rusek, Marian; Orlowski, Arkadiusz

2005-04-01

The dynamics of small ({<=}55 atoms) argon clusters ionized by an intense femtosecond laser pulse is studied using a time-dependent Thomas-Fermi model. The resulting Bloch-like hydrodynamic equations are solved numerically using the smooth particle hydrodynamics method without the necessity of grid simulations. As follows from recent experiments, absorption of radiation and subsequent ionization of clusters observed in the short-wavelength laser frequency regime (98 nm) differs considerably from that in the optical spectral range (800 nm). Our theoretical approach provides a unified framework for treating these very different frequency regimes and allows for a deeper understanding of the underlying cluster explosionmore » mechanisms. The results of our analysis following from extensive numerical simulations presented in this paper are compared both with experimental findings and with predictions of other theoretical models.« less

Coral reef health response to chronic and acute changes in water quality in St. Thomas, United States Virgin Islands.

PubMed

Ennis, Rosmin S; Brandt, Marilyn E; Wilson Grimes, Kristin R; Smith, Tyler B

2016-10-15

It is suspected that land cover alteration on the southern coast of St. Thomas, USVI has increased runoff, degrading nearshore water quality and coral reef health. Chronic and acute changes in water quality, sediment deposition, and coral health metrics were assessed in three zones based upon perceived degree of human influence. Chlorophyll (p<0.0001) and turbidity (p=0.0113) were significantly higher in nearshore zones and in the high impact zone during heavy precipitation. Net sediment deposition and terrigenous content increased in nearshore zones during periods of greater precipitation and port activity. Macroalgae overgrowth significantly increased along a gradient of decreasing water quality (p<0.0001). Coral bleaching in all zones peaked in November with a regional thermal stress event (p<0.0001). However, mean bleaching prevalence was significantly greater in the most impacted zone compared to the offshore zone (p=0.0396), suggesting a link between declining water quality and bleaching severity. Published by Elsevier Ltd.

Transforming an industrial giant. Interview by Thomas A. Stewart and Louise O'Brien.

PubMed

von Pierer, Heinrich

2005-02-01

In his 12 years at the helm of Siemens, CEO Heinrich von Pierer designed and directed a major transformation. Taking this German icon from a technically superb but slow-moving industrial giantto a disciplined yet nimble multinational has posed enormous challenges. Since 1992, Siemens has revamped its portfolio of businesses, expanded its reach into 192 countries, and created a more local-market-driven culture, gaining recognition as one of the best-managed and most competitive companies in the world. In this edited interview with HBR editor Thomas A. Stewart and consulting editor Louise O'Brien, von Pierer describes the requirements for transformation and culture change and how he broke down historical barriers at Siemens. He shares his insights about portfolio restructuring, his lessons from competing with GE, and the pros and cons of being based in Europe versus America. He reflects on the true start of globalization after the fall of the Berlin wall and on how dramatically the company needed to change in order to counter the resulting pricing pressures across all of its businesses. He talks, too, about the biggest challenge on his successor's desk-"the particular challenge of China;" he says. Amid all these topics, von Pierer reiterates the importance of people: "We all talk about people as our most important resource, but as a matter of fact, who's really taking care of people?... We need [their] backing. We can't afford to run into a situation where people no longer accept what we do."

Organochlorine accumulation by Sentinel Mallards at the Winston-Thomas sewage treatment plant, Bloomington, Indiana

USGS Publications Warehouse

Custer, T.W.; Sparks, D.W.; Sobiech, S.A.; Hines, R.K.; Melancon, M.J.

1996-01-01

Farm-raised l2-month-old female mallards (Anas platyrhynchos) were released at the Winston-Thomas sewage treatment plant, Bloomington, Indiana. Five mallards were sacrificed at the start of the study and at approximately 10-day intervals through day 100. Concentrations of polychlorinated biphenyls (PCBs) in carcasses increased linearly with time of exposure and exceeded 16 mcg/g wet weight by day 100; PCBs in breast muscle exceeded 3.9 mcg/g by day 100. These PCB values are among the highest recorded for wild or sentinel waterfowl. PCB concentrations in breast muscle (26-523 mcg/g lipid weight) were 50-1,000 times greater than human consumption guidelines for edible poultry in Canada (0.5 mcg/g lipid weight) and 9-176 times greater than consumption guidelines for edible poultry in the United States (3.0 mcg/g lipid weight). Additionally, PCB concentrations in carcass and breast muscle exceeded the threshold of the Great Lakes Sport Fish Consumption Advisory 'do not eat' category (1.9 mcg/g wet weight) by day 20 and day 50, respectively. Hepatic cytochrome P450-associated monooxygenases including BROD (benzyloxyresorufin-O-dealkylase), EROD (ethoxyresorufin-O-dealkylase), and PROD (pentoxyresorufin-O-dealkylase) were induced over 5-fold compared to reference mallards. BROD, EROD, and PROD were each significantly correlated to total PCBs and to the toxicity of selected PCB congeners, relative to 2,3,7,8-tetrachlorodibenzo-p-dioxin.

The Development of Genetics in the Light of Thomas Kuhn's Theory of Scientific Revolutions.

PubMed

Portin, Petter

2015-01-01

The concept of a paradigm is in the key position in Thomas Kuhn's theory of scientific revolutions. A paradigm is the framework within which the results, concepts, hypotheses and theories of scientific research work are understood. According to Kuhn, a paradigm guides the working and efforts of scientists during the time period which he calls the period of normal science. Before long, however, normal science leads to unexplained matters, a situation that then leads the development of the scientific discipline in question to a paradigm shift--a scientific revolution. When a new theory is born, it has either gradually emerged as an extension of the past theory, or the old theory has become a borderline case in the new theory. In the former case, one can speak of a paradigm extension. According to the present author, the development of modern genetics has, until very recent years, been guided by a single paradigm, the Mendelian paradigm which Gregor Mendel launched 150 years ago, and under the guidance of this paradigm the development of genetics has proceeded in a normal fashion in the spirit of logical positivism. Modern discoveries in genetics have, however, created a situation which seems to be leading toward a paradigm shift. The most significant of these discoveries are the findings of adaptive mutations, the phenomenon of transgenerational epigenetic inheritance, and, above all, the present deeply critical state of the concept of the gene.

Organochlorine accumulation by sentinel mallards at the Winston-Thomas sewage treatment plant, Bloomington, Indiana

USGS Publications Warehouse

Custer, T.W.; Sparks, D.W.; Sobiech, S.A.; Hines, R.K.; Melancon, M.J.

1996-01-01

Farm-raised 12-month-old female mallards (Anas platyrhynchos) were released at the Winston-Thomas sewage treatment plant, Bloomington, Indiana. Five mallards were sacrificed at the start of the study and at approximately 10-day intervals through day 100. Concentrations of polychlorinated biphenyls (PCBs) in carcasses increased linearly with time of exposure and exceeded 16 g/g wet weight by day 100; PCBs in breast muscle exceeded 3.9 g/g by day 100. These PCB values are among the highest recorded for wild or sentinel waterfowl. PCB concentrations in breast muscle (26a??523 g/g lipid weight) were 50a??1,000 times greater than human consumption guidelines for edible poultry in Canada (0.5 g/g lipid weight) and 9a??176 times greater than consumption guidelines for edible poultry in the United States (3.0 g/g lipid weight). Additionally, PCB concentrations in carcass and breast muscle exceeded the threshold of the Great Lakes Sport Fish Consumption Advisory do not eat category (1.9 g/g wet weight) by day 20 and day 50, respectively. Hepatic cytochrome P450-associated monooxygenases including BROD (benzyloxyresorufin-O-dealkylase), EROD (ethoxyresorufin-O-dealkylase), and PROD (pentoxyresorufin-O-dealkylase) were induced over 5-fold compared to reference mallards. BROD, EROD, and PROD were each significantly correlated to total PCBs and to the toxicity of selected PCB congeners, relative to 2,3,7,8-tetrachlorodibenzo-p-dioxin.

Sir Thomas Brisbane's Legacy to Colonial Science: Colonial Astronomy at the Parramatta Observatory, 1822-1848

NASA Astrophysics Data System (ADS)

Saunders, Shirley D.

2004-12-01

Sir Thomas Makdougall Brisbane's legacy to colonial science derives from his initiative in establishing a privately owned observatory in the southern hemisphere, the Parramatta Observatory, during his term as Governor of the Colony of New South Wales from 1822 to 1825. In this paper a discussion is given of the origin and setting up of Brisbane's Parramatta Observatory, including the recruitment and employment of Carl Rümker and James Dunlop. An account is given of the choice of the work undertaken at Parramatta Observatory when it was privately owned by Brisbane such as the rediscovery of Encke's Comet in 1822, the publication of a catalogue of 7,385 southern stars in 1835 and measurements of earthly phenomena such as the weather, the temperature of the interior of the Earth and the figure of the Earth. An investigation is made of the ensuing struggles as the Parramatta Observatory moved from a private, gentlemanly endeavour to a more accountable public-sector institution in a distant colony of Britain. The main events concerning the public Parramatta Observatory are chronicled from 1826 to 1830 during the years when Rümker worked at the Observatory. A discussion is given of the period 1831 to 1848 at the Parramatta Observatory during Dunlop's term of public office, concluding with an account of the decay and demolition of the observatory.

The Guy's and St Thomas's NHS Foundation Trust @home service: an overview of a new service.

PubMed

Lee, Geraldine A; Titchener, Karen

2017-03-01

Hospital in the home is a relatively new concept within the UK healthcare system. The Guy's and St Thomas's NHS Foundation Trust (GSTT) @home service 'Bringing hospital care to your home' was commissioned by Lambeth and Southwark CCG in 2014 to provide acute care in the patients' place of residence by facilitating rapid discharge from hospital. The service is designed for 260-280 referrals each month from local hospitals, London Ambulance Service, GPs, district nurses and palliative care services. The GSTT@home provides intensive care for a short episode through multidisciplinary team work with the aim of returning the patient to their prior health status following an acute episode of ill health. The main criteria for referrals are adults, living within Lambeth or Southwark with an acute onset of illness often with acute exacerbations of chronic conditions. Care is delivered using 25 clinical pathways using integrated care teams, including those for respiratory disease, heart failure and palliative care services. Recently, the service extended to include overnight palliative care. As care shifts from hospital to the community, it is envisaged that these types of programmes will become an essential component of care provision. This paper describes the service and presents initial service evaluation data.

Making history: Thomas Francis, Jr, MD, and the 1954 Salk Poliomyelitis Vaccine Field Trial.

PubMed

Lambert, S M; Markel, H

2000-05-01

This article focuses on the poliomyelitis vaccine field trial directed by Thomas Francis,Jr, MD, of the University of Michigan Vaccine Evaluation Center and sponsored by the National Foundation for Infantile Paralysis (NFIP) or, as it was better known to the public, the March of Dimes. It was a landmark in the widescale testing of a vaccine and the ethical use of human subjects. Millions of American parents readily volunteered their healthy children to participate. A total of 150,000 volunteers, including schoolteachers, physicians, nurses, and health officers all endorsed the study and donated their time and effort to make it successful. Avoiding the use of marginalized groups, the field trial purposefully did not involve institutionalized children; instead, it was based in 15,000 public schools in 44 of the 48 states as clinic sites. A group of 650,000 children received some type of injection, either the vaccine or a placebo, and another 1.18 million served as controls. The field trial depended, most essentially, on both public support and the participation of millions of children who remained enrolled in a study that required a series of 3 injections and a 6-month evaluation period. Enlisting the huge number of participants presented practical examples of the difficulties in experimenting on human subjects. On April 26, 1954, Randy Kerr, a participant or "Polio Pioneer" as the children involved were called, received the first inoculation of the Salk poliomyelitis vaccine. The nationwide study "designed to test the safety and efficacy" of the Salk vaccine had officially begun.

Thomas Mann's Tonio Kröger: a study of the protagonist's emergence from the schizoid to the depressive position.

PubMed

Zlotnick-Woldenberg, C

2000-01-01

The protagonist of Thomas Mann's novella Tonio Kröger is examined in terms of object-relational theory. This approach is briefly compared with the interpretation that might be offered by structural theorists. Kröger, the son of an authoritarian and prototypical Germanic father and an artistic and sensuous mother from the south, is tormented by what he sees as his dual heritage. Unable to accept that he can be both an artist and a respectable member of bourgeois society, he employs splitting as a primary defense mechanism both intrapsychically and interpersonally, projecting these opposing ideologies onto others including Hans, Inge, and Lisabetta. Alternately idealizing and demonizing these characters, projections of his internal conflict, he is unable to achieve an integrated sense of himself or others, functioning primarily in the schizoid position. His emergence from the schizoid into the more mature depressive position, having been foreshadowed in a series of dream sequences, occurs at the end of the work when he comes to accept the view that artistic impulses and bourgeois discipline are not incompatible.

A new species of Cystoisospora Frenkel, 1977 (Apicomplexa: Sarcocystidae) from Oecomys mamorae Thomas (Rodentia: Cricetidae) in the Brazilian Pantanal.

PubMed

Barreto, Wanessa Teixeira Gomes; de Andrade, Gisele Braziliano; Viana, Lúcio André; de Oliveira Porfírio, Grasiela Edith; Santos, Filipe Martins; Perdomo, Alessandra Cabral; do Carmo, Jéssica Soares; da Silva, Alanderson Rodrigues; Maltezo, Taynara Rocha; Herrera, Heitor Miraglia

2018-05-01

Despite the great diversity of coccidians, to our knowledge, no coccidian infections have been described in Oecomys spp. In this context, we examined Oecomys mamorae Thomas (Rodentia: Cricetidae) from the Brazilian Pantanal for infections with enteric coccidia. Nine individuals were sampled, and one was found to be infected. The oöcysts were recovered through centrifugal flotation in sugar solution. Using morphological and morphometric features, we described a new species of Cystoisospora Frenkel, 1977. Sporulated oöcysts were ovoidal 20.0-29.1 × 16.4-23.2 (26.7 × 21.2) µm and contained two sporocysts, 12.9-19.1 × 9.4-13.9 (16.4 × 12.4) µm, each with four banana-shaped sporozoites. Polar granule and oöcyst residuum were both absent. We documented the developmental forms in the small intestine and described the histopathological lesions in the enteric tract. Our results indicate that the prevalence of Cystoisospora mamorae n. sp. in O. mamorae is low, and tissue damage in the enteric tract is mild, even in the presence of coccidian developmental stages.

75 FR 41483 - Environmental Impacts Statements; Notice of Availability

Federal Register 2010, 2011, 2012, 2013, 2014

2010-07-16

..., CO, Willow Creek Pass Fuel Reduction Project, Implementation, Hahns Peak/Bear Ears Ranger District..., Implementation, Humboldt-Toiyabe National Forest, Elko and White Pine Counties, NV, Comment Period Ends: 12/17...

The. Thoma Ionescu - Victor Gomoiu Procedure: Cervicothoracic Sympathectomy for Angina Pectoris. The First Surgical Attempt to Treat the Coronary Heart Disease.

PubMed

Vasilescu, Cătălin; Salmen, Monica; Bobocea, Andrei

2016-01-01

Cervicothoracic Sympathectomy is a common indication in the treatment of Raynaud Syndrome, Palmer Hyperhidrosis or Acute Ischemia of the superior limb. Nonetheless, almost a century ago it represented one of the first innovative attempts in curing coronary heart disease. Nowadays, this indication is no more than a footnote in a volume on the History of Medicine, and a trivia fact for medical history enthusiasts. The operation's history is rather conflicting. A young Romaninan surgeon, Victor Gomoiu seems to have come up with the idea, in the early 20th century. However, his contribution remains unknown, after his successful collaboration with the famous surgeon and anatomist, Thoma Ionescu unfortunately turns into a dispute. This procedure was once thought cutting-edge. Furthermore it is the starting point for cardiovascular surgery. Whoever sparked the idea, gains an important place in the hall of fame of international surgery, that is why it is important to know its creator.

Which Genes Drive Cancers? - TCGA

Cancer.gov

Associate Professor of Medicine at the Dana-Farber Cancer Institute, William Hahn, describes the method his lab has developed to tease apart the crucial driver mutations from passenger mutations in ovarian cancer.

Phomopsis Blight of Junipers

Treesearch

Glenn W. Peterson; C. S. Jr. Hidges

1982-01-01

Phomopsis blight has been a serious problem for more than 75 years in nurseries producing juniper seedlings and grafts. Phomopsis juniperovora Hahn, the fungus causing this disease, is widespread in the United States.

Foldy-Wouthuysen transformation for a Dirac-Pauli dyon and the Thomas-Bargmann-Michel-Telegdi equation

DOE Office of Scientific and Technical Information (OSTI.GOV)

Chen, Tsung-Wei; Chiou, Dah-Wei; Department of Physics and Center for Theoretical Sciences, National Taiwan University, Taipei 106, Taiwan

The classical dynamics for a charged point particle with intrinsic spin is governed by a relativistic Hamiltonian for the orbital motion and by the Thomas-Bargmann-Michel-Telegdi equation for the precession of the spin. It is natural to ask whether the classical Hamiltonian (with both the orbital and spin parts) is consistent with that in the relativistic quantum theory for a spin-1/2 charged particle, which is described by the Dirac equation. In the low-energy limit, up to terms of the seventh order in 1/E{sub g} (E{sub g}=2mc{sup 2} and m is the particle mass), we investigate the Foldy-Wouthuysen (FW) transformation of themore » Dirac Hamiltonian in the presence of homogeneous and static electromagnetic fields and show that it is indeed in agreement with the classical Hamiltonian with the gyromagnetic ratio being equal to 2. Through electromagnetic duality, this result can be generalized for a spin-1/2 dyon, which has both electric and magnetic charges and thus possesses both intrinsic electric and magnetic dipole moments. Furthermore, the relativistic quantum theory for a spin-1/2 dyon with arbitrary values of the gyromagnetic and gyroelectric ratios can be described by the Dirac-Pauli equation, which is the Dirac equation with augmentation for the anomalous electric and anomalous magnetic dipole moments. The FW transformation of the Dirac-Pauli Hamiltonian is shown, up to the seventh-order again, to be in accord with the classical Hamiltonian as well.« less

Comparative antipyretic and analgesic activities of Cissampelos pareira Linn. and Cyclea peltata (Lam.) Hook. F. & Thomas.

PubMed

Singh, Suman G; Nishteswar, K; Patel, Bhupesh R; Nariya, Mukesh

2016-01-01

Cissampelos pareira Linn. is considered as an established source of Patha , whereas Cyclea peltata (Lam.) Hook. F. & Thomas is used as a source plant of Patha in the southern part of India. In classical texts, two different varieties of Patha , i.e. Rajpatha ( C. peltata ) and Laghupatha ( C. pareira ), are mentioned which possess almost similar properties. To compare antipyretic and analgesic activities of C. pareira and C. peltata in suitable experimental model. Powder (540 mg/kg) and ethanolic extract (200 mg/kg) of both the test drugs ( C. pareira and C. peltata ) were evaluated for antipyretic activity in Brewer's yeast-induced pyrexia model in rats. Analgesic activity was evaluated by radiant heat model in rats and acetic acid-induced writhing syndrome in mice. Result of the present study had shown that powder of C. pareira (540 mg/kg) has moderate antipyretic activity as compared to the powder of C. peltata and extract of both test drugs. C. pareira powder showed better analgesic effect than ethanolic extract (200 mg/kg) of both the test drugs in radiant heat model in rats, while in acetic acid-induced writhing syndrome, ethanolic extract (280 mg/kg) of both drugs showed pronounced effect as compared to powder form (780 mg/kg) in mice. Both C. pareira and C. peltata exhibited analgesic effects in experimental animals. The effect is more significant in C. peltata treated group compared to C. pareira . Antipyretic effect was observed with the pretreatment of C. pareira .

Collective excitation frequencies and stationary states of trapped dipolar Bose-Einstein condensates in the Thomas-Fermi regime

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bijnen, R. M. W. van; Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1; Parker, N. G.

We present a general method for obtaining the exact static solutions and collective excitation frequencies of a trapped Bose-Einstein condensate (BEC) with dipolar atomic interactions in the Thomas-Fermi regime. The method incorporates analytic expressions for the dipolar potential of an arbitrary polynomial density profile, thereby reducing the problem of handling nonlocal dipolar interactions to the solution of algebraic equations. We comprehensively map out the static solutions and excitation modes, including non-cylindrically-symmetric traps, and also the case of negative scattering length where dipolar interactions stabilize an otherwise unstable condensate. The dynamical stability of the excitation modes gives insight into the onsetmore » of collapse of a dipolar BEC. We find that global collapse is consistently mediated by an anisotropic quadrupolar collective mode, although there are two trapping regimes in which the BEC is stable against quadrupole fluctuations even as the ratio of the dipolar to s-wave interactions becomes infinite. Motivated by the possibility of a fragmented condensate in a dipolar Bose gas due to the partially attractive interactions, we pay special attention to the scissors modes, which can provide a signature of superfluidity, and identify a long-range restoring force which is peculiar to dipolar systems. As part of the supporting material for this paper we provide the computer program used to make the calculations, including a graphical user interface.« less

An Inconvenient History: the Nuclear-Fission Display in the Deutsches Museum

NASA Astrophysics Data System (ADS)

Sime, Ruth Lewin

2010-06-01

One of the longstanding attractions of the Deutsches Museum in Munich, Germany, has been its display of the apparatus associated with the discovery of nuclear fission. Although the discovery involved three scientists, Otto Hahn, Lise Meitner, and Fritz Strassmann, the fission display was designated for over 30 years as the Arbeitstisch von Otto Hahn (Otto Hahn’s Worktable), with Strassmann mentioned peripherally and Meitner not at all, and it was not until the early 1990s that the display was revised to include all three codiscoverers more equitably. I examine the creation of the fission display in the context of the postwar German culture of silencing the National Socialist past, and trace the eventual transformation of the display into a contemporary exhibit that more accurately represents the scientific history of the fission discovery.

A survey of the water resources of St. Thomas, Virgin Islands

USGS Publications Warehouse

Jordon, D.G.; Cosner, O.J.

1973-01-01

St. Thomas, with an area of 32 square miles, is the second largest of the Virgin Islands of the United States. The island is mountainous, and slopes commonly exceed 35 degrees along a central ridge 800 to 1,200 feet high running the length of the island. The general appearance is a panorama of numerous steep interstream spurs and rounded peaks. The island is made up of rocks of Cretaceous age, mostly volcanic flows and breccia s. A thin limestone and tuffaceous wacke complete the sequence of major rock types. All the rocks have been tilted and dip about 50 degrees north. Water in Charlotte Amalie, the capital, is supplied by sea-water desalting and water barged from Puerto Rico and is augmented by hillside rain catchments and individual roof catchments. Rainwater augmented by water hauling and a few wells is the source of water for the rural areas. Streamflow is meager--2 to 8 percent of the annual rainfall-and is predominantly storm runoff. Runoff after rainstorms seldom exceeds 5 percent of the rainfall. Runoff is rapid, however, and flash floods occasionally occur. Test drilling has shown that water can be obtained from fractured volcanic rocks in nearly all parts of the island. Wells will yield, generally, less than 1,000 gpd (gallons per day). In the upper Turpentine Run Valley and the Lovenlund Valley, short-term yields of individual wells are as great as 100 gallons per minute. Estimates of potential yield from these areas are 300,000 and 100,000 gpd, respectively. Two smaller areas--Long Bay and Lindberg Bay on the outskirts of Charlotte Amalie have estimated ground-water yields of 70,000 and 30,000 gpd, respectively. Fully developed, the surface- and ground-water resources of the island could yield 1.3 million gallons of water per day. Ground water is slightly saline, commonly containing more than 1,000 milligrams per liter dissolved solids. The principal source of the minerals is bulk fallout of sea- and land-derived dust from the atmosphere. Solution of

A history of Guy's, King's and St. Thomas' hospitals from 1649 to 2009: 360 years of innovation in science and surgery.

PubMed

Agha, Riaz; Agha, Maliha

2011-01-01

Much has been achieved in the scientific and surgical fields over the last 360 years. Some institutions have contributed disproportionately to these advances. The medical schools and hospitals of Guy's (est. 1721), King's (est. 1840) and St. Thomas' (est. 1173) seem to provide a focus and a catalyst for much innovation and creativity dating back to 1608. This review sets to provide an overview of the major contributors to surgical advances at these institutions over the last 360 years and what factors affected unique to these institutions contributed to the climate of discovery. It is based on a lecture given to the Osler Club of London (est. 1928) at the Royal College of Physicians in London on 4 November 2010. It is the author's premise that the people and the discoveries they made within these institutions within three square miles of London changed the practice and understanding of science and healthcare as we know it today. Copyright © 2011 Surgical Associates Ltd. Published by Elsevier Ltd. All rights reserved.

Genetics Home Reference: epilepsy-aphasia spectrum

MedlinePlus

... Van Paesschen W, Caraballo R, Fejerman N, Weckhuysen S, De Jonghe P, Larsen J, Møller RS, Hjalgrim H, ... B, Kurlemann G, Kluger G, Hahn A, Haberlandt DE, Kutzer C, Sperner J, Becker F, Weber YG, ...

Para-Krawtchouk polynomials on a bi-lattice and a quantum spin chain with perfect state transfer

NASA Astrophysics Data System (ADS)

Vinet, Luc; Zhedanov, Alexei

2012-07-01

Analogues of Krawtchouk polynomials defined on a bi-lattice are introduced. They are shown to provide a (novel) spin chain with perfect transfer. Their characterization, as well as their connection to the quadratic Hahn algebra, is given.

Henoch-Schonlein purpura

MedlinePlus

... FF, eds. Ferri's Clinical Advisor 2017 . Philadelphia, PA: Elsevier; 2017:562.e1-563.e1. Hahn D, Hodson ... JG, ed. Emergency Medicine . 2nd ed. Philadelphia, PA: Elsevier Saunders; 2013:chap 22. Jennette JC, Falk RJ, ...

Vivien Theodore Thomas (1910-1985): An African-American laboratory technician who went on to become an innovator in cardiac surgery.

PubMed

Soylu, Erdinc; Athanasiou, Thanos; Jarral, Omar A

2017-05-01

Vivien Theodore Thomas (1910-1985) was an African-American laboratory technician and instructor of surgery at Johns Hopkins University, Baltimore. He was born as the grandson of a slave in Lousiana, working as a carpenter and subsequently as a laboratory technician after the great depression and the loss of his savings derailed his plans to become a doctor. In his role as a laboratory technician, he overcame challenging personal circumstances to become an innovator in paediatric cardiac surgery, despite having no formal college education. He played an important role in assisting Alfred Blalock and Helen Taussig in the development of the 'Blalock-Taussig' shunt, a procedure used to improve the survival of children with cyanotic congenital heart defects. He also contributed to major breakthroughs in research covering a spectrum of disorders such as traumatic shock, coarctation of the aorta and transposition of the great arteries. He acted as a teacher and mentor to a generation of surgical residents and technicians who went on to become leaders in their field across the USA. A television film based on his life was premiered by HBO in 2004 titled 'Something the Lord made'.

Correlation of ERTS-1 and aircraft optical data with water quality parameters of Charlotte Amalie Harbor, St. Thomas, Virgin Islands

NASA Technical Reports Server (NTRS)

Coulbourn, W. C.; Egan, W. G. (Principal Investigator)

1973-01-01

The author has identified the following significant results. Attempts to correlate optical aircraft remote sensing of water quality with the optical data from the ERTS-1 satellite using calibrated imagery of Charlotte Amalie harbor, St. Thomas, Virgin Islands are reported. The harbor at Charlotte Amalie has a concentration of a number of factors affecting water quality: untreated sewage, land runoff, and sediment from navigation and dredging operations. Calibration procedures have been originated and applied to ERTS-1 and I2S camera imagery. The results indicate that the ERTS-1 and I2S imagery are correlated with optical in situ measurements of the harbor water. The aircraft green photographic and ERTS-1 MSS-4 bands have been found most suitable for monitoring the scattered light levels under the conditions of the investigation. The chemical parameters of the harbor water were found to be correlated to the optical properties for two stations investigated in detail. The biological properties of the harbor water (chlorophyll and carotenoids), correlate inversely with the optical data near the pollution sources compared to further away. Calibration procedures developed in this investigation were essential to the interpretation of the photographic and ERTS-1 photometric responses.

A transcriptome survey spanning life stages and sexes of the Harlequin bug, Murgantia histrionica

USDA-ARS?s Scientific Manuscript database

The harlequin bug, Murgantia histrionica (Hahn), is an agricultural pest in the continental United States, particularly in southern states. Reliable gene sequence data are especially useful to the development of species-specific, environmentally friendly molecular biopesticides and effective biolure...

Intraband magneto-optical absorption in InAs/GaAs quantum dots: Orbital Zeeman splitting and the Thomas-Reiche-Kuhn sum rule

NASA Astrophysics Data System (ADS)

Zhang, J.-Z.; Galbraith, I.

2008-05-01

Using perturbation theory, intraband magneto-optical absorption is calculated for InAs/GaAs truncated pyramidal quantum dots in a magnetic field applied parallel to the growth direction z . The effects of the magnetic field on the electronic states as well as the intraband transitions are systematically studied. Selection rules governing the intraband transitions are discussed based on the symmetry properties of the electronic states. While the broadband z -polarized absorption is almost insensitive to the magnetic field, the orbital Zeeman splitting is the dominant feature in the in-plane polarized spectrum. Strong in-plane polarized magneto-absorption features are located in the far-infrared region, while z -polarized absorption occurs at higher frequencies. This is due to the dot geometry (the base length is much larger than the height) yielding different quantum confinement in the vertical and lateral directions. The Thomas-Reiche-Kuhn sum rule, including the magnetic field effect, is applied together with the selection rules to the absorption spectra. The orbital Zeeman splitting depends on both the dot size and the confining potential—the splitting decreases as the dot size or the confining potential decreases. Our calculated Zeeman splittings are in agreement with experimental data.

Fooling the harlequin bug (Hemiptera: Pentatomidae) using synthetic volatiles to alter host plant choice

USDA-ARS?s Scientific Manuscript database

Harlequin bug, Murgantia histrionica (Hahn) (Hemiptera: Pentatomidae), is a widespread invasive pest that feeds on a variety of brassicaceous crops and other plants. To understand olfactory cues which mediate host-finding, and possible utility in pest management, we deployed aggregation pheromone (m...

Woody biomass and volume for four tree species in Missouri Forests

Treesearch

Charles D. Keating; David R. Larsen

2015-01-01

Global energy supply concerns and increasing energy consumption are forcing our society to look into non-fossil-based energy sources and fuels to supplement humanity’s ever growing energy requirements (Hahn 1984, Jenkins and others 2004, Smith 1985, Stortz 1975)

Music Instruction for Elementary Students with Moderate to Severe Cognitive Impairments: A Case Study

ERIC Educational Resources Information Center

Salvador, Karen

2015-01-01

Although elementary general music specialists teach students with a variety of exceptionalities every day (Chen, 2007; Hahn, 2010; Hoffman, 2011), many music teacher preparation programs do not adequately address exceptionality (Salvador, 2010). Articles regarding "strategies that work" appear perennially in the professional literature…

Planning and Implementing Augmentative Communication Service Delivery, 2: Proceedings of the National Planners Conference on Assistive Device Service Delivery.

ERIC Educational Resources Information Center

Coston, Caroline A., Ed.

The document consists of 30 author contributed chapters concerned with augmentative communication service delivery. Chapter titles and authors are: "Communication Options for Persons Who Cannot Speak: Planning for Service Delivery" (David Beukelman); "Planning Service Delivery Systems" (Roland Hahn II); "Planning Ohio's…

The Teacher Trainer, A Practical Journal Mainly for Modern Language Teacher Trainers, 1996.

ERIC Educational Resources Information Center

Woodward, Tessa, Ed.

1996-01-01

The three issues of the journal on second language teacher education include these articles: "We Need More and Different Flags" (Agnes Martin); "Dealing with Timetabling on Second Language Teacher Training Courses" (Craig Thaine); "Interview with Jill Florent"; "Haiku Idea" (Tim Hahn); "The Hidden…

Obituary: Thomas Julian Ahrens (1936-2010)

NASA Astrophysics Data System (ADS)

Jeanloz, Raymond; Asimow, Paul

2011-12-01

Thomas J. Ahrens, a leader in the use of shock waves to study planetary interiors and impact phenomena, died at his home in Pasadena, California on November 24, 2010, at the age of 74. He was the California Institute of Technology's Fletcher Jones Professor of Geophysics, formally emeritus since 2005 but professionally active to the end. Tom was a pioneer in experimental and numerical studies of the effects of hypervelocity impact, arguably the most important geophysical process in the formation, growth and - in many cases - surface evolution of planets. As a professor at Caltech, he established the foremost university laboratory for shock wave experiments, where students and research associates from around the world pursued basic research in geophysics, planetary science and other disciplines. Previously, high-pressure shock experiments were primarily conducted in national laboratories, where they were initially associated with development of nuclear weapons. The shock wave laboratory at Caltech was noted for key measurements addressing major questions in planetary geophysics. Equation-of-state studies on silicate melts showed that magma deep in Earth's mantle could be denser than the coexisting crystals, implying downward transport of melts (and associated heat) rather than the upward eruption of lavas observed in volcanic regions at Earth's surface. Shock-melting experiments on iron at pressures of Earth's core provide a crucial constraint on the temperature at the center of our planet. And studies of hydrous, carbonate and sulphate minerals under shock compression document how climate-altering molecules can be released by major impacts, such as the K/T event associated with the most recent mass extinction of biota in Earth history. In addition, Tom was a leader in numerical simulation of cratering, bringing the most recent laboratory measurements into the modeling of planetary impacts. Tom's training was in geophysics and applied experimental physics, as

An assessment of butyltins and metals in sediment cores from the St. Thomas East End Reserves, USVI.

PubMed

Hartwell, S Ian; Apeti, Dennis A; Mason, Andrew L; Pait, Anthony S

2016-11-01

Tributyltin (TBT) concentrations near a marina complex in Benner Bay on St. Thomas, US Virgin Islands, were elevated relative to other areas in a larger study of the southeastern shore of the island. At the request of the USVI Coastal Zone Management Program, sediment cores and surface sediment samples were collected to better define the extent and history of TBT deposition in the vicinity of Benner Bay. The sediment cores were sectioned into 2-cm intervals and dated with 210 Pb and 137 Cs. The core sections and the surface samples were analyzed for butyltins and 16 elements. Deposition rates varied from 0.07-5.0 mm/year, and were highest in the marina complex. Core ages ranged from 54 to 200 years. The bottoms of the cores contained shell hash, but the top layers all consisted of much finer material. Surface concentrations of TBT exceeded 2000 ng Sn/g (dry weight) at two locations. At a depth of 8 cm TBT exceeded 8800 ng Sn/g in the marina complex sediment. Based on the ratio of tributyltin to total butyltins, it appears that the marina sediments are the source of contamination of the surrounding area. There is evidence that vessels from neighboring islands may also be a source of fresh TBT. Copper concentrations increase over time up to the present. Gradients of virtually all metals and metalloids extended away from the marina complex. NOAA sediment quality guidelines were exceeded for As, Pb, Cu, Zn, and Hg.

Effect of Nutrient Management Planning on Crop Yield, Nitrate Leaching and Sediment Loading in Thomas Brook Watershed

NASA Astrophysics Data System (ADS)

Amon-Armah, Frederick; Yiridoe, Emmanuel K.; Ahmad, Nafees H. M.; Hebb, Dale; Jamieson, Rob; Burton, David; Madani, Ali

2013-11-01

Government priorities on provincial Nutrient Management Planning (NMP) programs include improving the program effectiveness for environmental quality protection, and promoting more widespread adoption. Understanding the effect of NMP on both crop yield and key water-quality parameters in agricultural watersheds requires a comprehensive evaluation that takes into consideration important NMP attributes and location-specific farming conditions. This study applied the Soil and Water Assessment Tool (SWAT) to investigate the effects of crop and rotation sequence, tillage type, and nutrient N application rate on crop yield and the associated groundwater leaching and sediment loss. The SWAT model was applied to the Thomas Brook Watershed, located in the most intensively managed agricultural region of Nova Scotia, Canada. Cropping systems evaluated included seven fertilizer application rates and two tillage systems (i.e., conventional tillage and no-till). The analysis reflected cropping systems commonly managed by farmers in the Annapolis Valley region, including grain corn-based and potato-based cropping systems, and a vegetable-horticulture system. ANOVA models were developed and used to assess the effects of crop management choices on crop yield and two water-quality parameters (i.e., leaching and sediment loading). Results suggest that existing recommended N-fertilizer rate can be reduced by 10-25 %, for grain crop production, to significantly lower leaching ( P > 0.05) while optimizing the crop yield. The analysis identified the nutrient N rates in combination with specific crops and rotation systems that can be used to manage leaching while balancing impacts on crop yields within the watershed.

KENNEDY SPACE CENTER, FLA. - In the Orbiter Processing Facility, STS-114 Mission Specialists Charles Camarda and Andy Thomas, who were recently added to the crew, look at the nose cap recently removed from Atlantis. The STS-114 crew is at KSC to take part in crew equipment and orbiter familiarization.

NASA Image and Video Library

2003-10-30

KENNEDY SPACE CENTER, FLA. - In the Orbiter Processing Facility, STS-114 Mission Specialists Charles Camarda and Andy Thomas, who were recently added to the crew, look at the nose cap recently removed from Atlantis. The STS-114 crew is at KSC to take part in crew equipment and orbiter familiarization.

419th Brookhaven Lecture. The Last 20 Years in Neutrino Science

ScienceCinema

Hahn, Richard

2017-12-11

In this talk, Hahn reviews highlights of the last 20 years in neutrino science and discusses a few ideas for new precision neutrino experiments, some of which will involve collaborative efforts of his group in the Chemistry Department and colleagues in the Physics Department.

Color preference of harlequin bug, Murgantia histrionica (Heteroptera: Pentatomidae)

USDA-ARS?s Scientific Manuscript database

Harlequin bug, Murgantia histrionica (Hahn), is an important pest of Brassica crops in the southern United States. Regional populations are highly variable and unpredictable from farm to farm, and therefore accurate monitoring of activity would greatly improve IPM decision-making and the timing of c...

GENE FLOW AS A GENETIC HOMOGENIZATION EVENT BETWEEN POPULATIONS OF ACROCOMIA ACULEATA (JACQ.) LODD. EX MART AND A. TOTAI MART (ARECACEAE)

USDA-ARS?s Scientific Manuscript database

Technical Abstract The taxonomy of species of the genus Acrocomia (Arecaceae) is unclear. Some authors recognize two species: the caulescent Acrocomia aculeata and the acaulescent A. hassleri (Barb. Rodr.) W. J. Hahn; while others in recognition of the high phenotypic diversity assume the presence o...

Relation of bulk precipitation and evapotranspiration to water quality and water resources, St. Thomas, Virgin Islands

USGS Publications Warehouse

Jordan, Donald George; Fisher, Donald W.

1977-01-01

St. Thomas, Virgin Islands, lies in what can be considered a true maritime regime, being 600 miles (1000 kilometers) from the nearest continental landmass. The island is composed almost entirely of volcanic rocks mantled by a thin soil seldom more than 2 feet (60 centimeters) thick. Rainfall, averaging about 40 inches (1020 millimeters) annually, has an orographic distribution related to the central ridge of the island, altitude 600 to 1500 feet (180 to 405 meters), and the easterly to northeasterly trade winds. The mineral content of bulk precipitation falling on the island is derived principally from the sea although soil dust contributes much of the calcium, sodium, and bicarbonate. Two-thirds of the sulfate in the precipitation is provided by sea salts; the remainder is derived from other sources. The concentration of the constituents of bulk precipitation fluctuates widely month to month, but the load of the constituents shows little monthly variation. Bulk precipitation is concentrated on the land surface and in the soil zone. From there it is carried into the ground water during recharge or is removed by storm-water runoff. It is the principal source of minerals in the waters of the island. Soil-moisture demand and evaporation limits recharge to 1 to 2 inches (25 to 50 millimeters) annually for the greater part of the island. Evapotranspiration also occurs directly from the aquifer. The salts left further increase the mineralization of the ground water. Water loss from the aquifer by evapotranspiration ranges from 40 to 80 percent of the recharge. Recharge to the aquifers and evapotranspiration of ground water determined by ratios of chloride concentrations in bulk precipitation, surface water, and subsurface water agree favorably with recharge and groundwater loss computed by other means.

Obituary: Thomas Gold, 1920-2004

NASA Astrophysics Data System (ADS)

Dermott, Stanley F.

2004-12-01

Thomas "Tommy" Gold died of heart disease at Cayuga Medical Center, Ithaca NY on 22 June 2004 at the age of 84. He will be remembered as one of the most interesting, dynamic and influential scientists of his generation. Tommy's paradigm-changing ideas in astronomy and planetary science, while original and bold, were also highly controversial. With his radical work on the origin of natural gas and petroleum, the controversy is likely to continue. Tommy was born in Vienna, Austria on 22 May 1920, moving with his family to Berlin at age 10 and then, after the rise of Hitler in 1933, to England. His parents were Josephine (nee Martin) and Maximillian Gold, a successful steel magnate. Tommy was educated at Zuoz College in Switzerland where he became an expert skier and developed an athletic prowess that he maintained throughout his life, winning a NASTAR gold medal for skiing at the age of 65. He studied Mechanical Sciences at Trinity College, Cambridge, but much to his disgust his education was interrupted because of internment by the British as a suspected enemy alien. That unfortunate period (I remember him saying to me "Can you believe the stupidity, interring people like me who had fled from Nazi Germany?") had one good outcome: on his first night in camp he met Hermann Bondi who had an important influence on his early development as a scientist. They were both born in Vienna, their parents knew each other, and they were fellow students at Trinity, but this was their first meeting. On release, he went immediately into top-secret radar research for the British Admiralty, working as a team with Bondi and Fred Hoyle in a farm cottage in Dunsfold, Surrey. Tommy's first published research, which was a Nature paper with R.J. Pumphrey in 1947, was not in astronomy but physiology. He applied his engineer's understanding of positive feedback to develop and test a resonance model for how the human ear determines pitch. His conclusion that pitch discrimination occurs

Facing an Uncertain Future.

DTIC Science & Technology

1982-01-01

apparent coincidence that the same normalization should do for time and uncertainty with Kenneth Arrow, Michael Boskin, Frank Hahn, Hugh Rose, Amartya ... Sen , and John Wise at various times, and the possible relationship between the structure of a criterion function and an information tree such as that

A new numerical approach to solve Thomas-Fermi model of an atom using bio-inspired heuristics integrated with sequential quadratic programming.

PubMed

Raja, Muhammad Asif Zahoor; Zameer, Aneela; Khan, Aziz Ullah; Wazwaz, Abdul Majid

2016-01-01

In this study, a novel bio-inspired computing approach is developed to analyze the dynamics of nonlinear singular Thomas-Fermi equation (TFE) arising in potential and charge density models of an atom by exploiting the strength of finite difference scheme (FDS) for discretization and optimization through genetic algorithms (GAs) hybrid with sequential quadratic programming. The FDS procedures are used to transform the TFE differential equations into a system of nonlinear equations. A fitness function is constructed based on the residual error of constituent equations in the mean square sense and is formulated as the minimization problem. Optimization of parameters for the system is carried out with GAs, used as a tool for viable global search integrated with SQP algorithm for rapid refinement of the results. The design scheme is applied to solve TFE for five different scenarios by taking various step sizes and different input intervals. Comparison of the proposed results with the state of the art numerical and analytical solutions reveals that the worth of our scheme in terms of accuracy and convergence. The reliability and effectiveness of the proposed scheme are validated through consistently getting optimal values of statistical performance indices calculated for a sufficiently large number of independent runs to establish its significance.

Quantum decoherence dynamics of divacancy spins in silicon carbide.

PubMed

Seo, Hosung; Falk, Abram L; Klimov, Paul V; Miao, Kevin C; Galli, Giulia; Awschalom, David D

2016-09-29

Long coherence times are key to the performance of quantum bits (qubits). Here, we experimentally and theoretically show that the Hahn-echo coherence time of electron spins associated with divacancy defects in 4H-SiC reaches 1.3 ms, one of the longest Hahn-echo coherence times of an electron spin in a naturally isotopic crystal. Using a first-principles microscopic quantum-bath model, we find that two factors determine the unusually robust coherence. First, in the presence of moderate magnetic fields (30 mT and above), the 29 Si and 13 C paramagnetic nuclear spin baths are decoupled. In addition, because SiC is a binary crystal, homo-nuclear spin pairs are both diluted and forbidden from forming strongly coupled, nearest-neighbour spin pairs. Longer neighbour distances result in fewer nuclear spin flip-flops, a less fluctuating intra-crystalline magnetic environment, and thus a longer coherence time. Our results point to polyatomic crystals as promising hosts for coherent qubits in the solid state.

Teachers-in-Residence: New Pathways into the Profession. Ask the Team

ERIC Educational Resources Information Center

Han, Grace; Doyle, Daniela

2013-01-01

Teacher residency programs are a relatively new method for building stronger teacher pipelines. Research assessing the impact of these programs is still limited, but some early reports suggest that residency programs hold promise for improving teacher effectiveness and retention rates (Barrett, Hovde, Hahn, & Rosqueta, 2011; Papay, West,…

The Effects of Computer-Assisted Pronunciation Readings on ESL Learners' Use of Pausing, Stress, Intonation, and Overall Comprehensibility

ERIC Educational Resources Information Center

Tanner, Mark W.; Landon, Melissa M.

2009-01-01

With research showing the benefits of pronunciation instruction aimed at suprasegmentals (Derwing, Munro, & Wiebe, 1997, 1998; Derwing & Rossiter, 2003; Hahn, 2004; McNerney and Mendelsohn, 1992), more materials are needed to provide learners opportunities for self-directed practice. A 13-week experimental study was performed with 75 ESL learners…

An Early Conceptual Design And Feasibility Analysis Of A Nuclear-Powered Cargo Vessel

DTIC Science & Technology

2009-05-08

13 FIGURE 6: NS MUTSU ...NS MUTSU .........................................................15 TABLE 4: PERTINENT NAVAL ARCHITECTURAL DATA DATA FOR NS SEVMORPUT...was built in Japan. Similar to the NS Otto Hahn, the NS Mutsu was to be a research vessel as well as a cargo vessel. However, the NS Mutsu was

Fabrication of Metamaterials by Drawing Techniques

DTIC Science & Technology

2011-03-03

Rill, M. Thiel, E. Müller, S. Essig, A. Frölich, G. von Freymann, S. Linden, D. Gerthsen, H. Hahn, K. Busch and M. Wegener, “Transition between...characterization and homogenization of nanostructured metamaterials,” J. Opt. 13, 013001 (2011). 25. L. H. Sperling , Introduction to physical polymer

Examination of the Relationship between Internet Attitudes and Internet Addictions of 13-18-Year-Old Students: The Case of Kahramanmaras

ERIC Educational Resources Information Center

Ilhan, Aziz; Çelik, H. Coskun; Gemcioglu, Muharrem; Çiftaslan, Malik Ejder

2016-01-01

This study aims to determine internet attitudes and internet addiction levels of 13-18-year-old students and examine the relationship between these variables. The "internet attitude scale", developed by Tavsancil and Keser (2002) and the "internet addiction scale", developed by Hahn and Jerusalem and adapted into Turkish by…

76 FR 58847 - Post Office Closing

Federal Register 2010, 2011, 2012, 2013, 2014

2011-09-22

... POSTAL REGULATORY COMMISSION [Docket No. A2011-73; Order No. 858] Post Office Closing AGENCY... the closing of the Langston, Alabama post office has been filed. It identifies preliminary steps and... determination to close the Langston post office in Langston, Alabama. The petition was filed by Donald J. Hahn...

Revision of Neacomys spinosus (Thomas, 1882) (Rodentia: Cricetidae) with emphasis on Peruvian populations and the description of a new species.

PubMed

Hurtado, Natali; Pacheco, Víctor

2017-03-13

The large spiny mouse Neacomys spinosus (Thomas, 1882) has been considered the widest ranging species of the genus, occurring in southern Colombia, eastern Peru, western Brazil and northern Bolivia. The morphological variation between subspecies and populations of N. spinosus has been noted; nonetheless, this variation has not been assessed in a morphological or molecular context. Here, we present a taxonomic revision of Neacomys spinosus s.l. using qualitative and quantitative morphological analyses. These analyses were complemented with molecular analysis to reconstruct the phylogenetic relationships among species of Neacomys, based on sequences of the cytochrome b gene. Our results reveal that N. spinosus s.l. is a monophyletic group, and morphological and molecular evidence to differentiate three taxa: N. spinosus s.s., an endemic species from mountain cloud forests in Peru; N. amoenus s.l. from the Cerrado between Bolivia and Brazil to the Amazonia between Ecuador and northern Peru, and Neacomys sp. nov. from mountain cloud forests from southern Peru to Bolivia. Also, our molecular results indicate that Neacomys is still far from being completely known. For instance, there are three candidate species pending of taxonomic revision. Finally, we propose three species groups within Neacomys: "paracou", "tenuipes" and "spinosus", and discuss biogeographical scenarios of the genus within South America.

A Path Worth Taking: The Development of Social Justice in Outdoor Experiential Education

ERIC Educational Resources Information Center

Warren, Karen

2005-01-01

This article examines the influences promoting social justice in the field of outdoor experiential education. The philosophical foundations of outdoor adventure including the work of John Dewey and Kurt Hahn are considered in light of social justice education. The historical evolution of social justice activism within the professional community is…

The Czech Approach to Outdoor Adventure and Experiential Education: The Influence of Jaroslav Foglar's Work

ERIC Educational Resources Information Center

Jirásek, Ivo; Turcova, Ivana

2017-01-01

While key personalities often connected with the roots of outdoor education and experiential learning, like Dewey, Seton, Hahn or Naess, are well known internationally, Jaroslav Foglar, a Czech outdoor and experiential educator, is mostly unknown to the international audience. The article adds to the literature related to Czech outdoor experience…

Corrigendum to "An equation decoupling approach to identify the equivalent foundation in rotating machinery using modal parameters" [J. Sound Vib. 365 (2016) 182-198

NASA Astrophysics Data System (ADS)

Yu, Minli; Feng, Ningsheng; Hahn, Eric J.

2016-08-01

The authors would like to apologise for the error made to the affiliation details of Dr Ningsheng Feng and Dr Eric J. Hahn in the original publication and who are both affiliated to The School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, NSW 2052, Australia

The Psychological Mechanism of the Slippery Slope Argument

ERIC Educational Resources Information Center

Corner, Adam; Hahn, Ulrike; Oaksford, Mike

2011-01-01

Slippery slope arguments (SSAs) have a bad philosophical reputation. They seem, however, to be widely used and frequently accepted in many legal, political, and ethical contexts. Hahn and Oaksford (2007) argued that distinguishing strong and weak SSAs may have a rational basis in Bayesian decision theory. In this paper three experiments…

Quantum Efficiency as a Function of Temperature in Metal Photocathodes

DTIC Science & Technology

2013-06-01

Srinivasan-Rao, I. Ben-Zvi, A. Burrill, H. Hahn, D. Kayran, Y. Zhao, and M. Cole. “Photoemission studies on BNL /AES/JLAB all niobium, superconducting RF...Hershcovitch, D. Pate, A. Reuter et al., “Design, construction and status of all niobium superconducting photoinjector at BNL ,” Proc. IEEE of the

A Nuclear Tech Course = Nuclear Technology in War and Peace: A Study of Issues and Choices.

ERIC Educational Resources Information Center

Shanebrook, J. Richard

A nuclear technology college course for engineering students is outlined and described. The course begins with an historical account of the scientific discoveries leading up to the uranium experiments of Hahn and Strassman in Germany and the subsequent explanation of nuclear fission by Meitner and Frisch. The technological achievements of the…

Youth Employability. Monographs on Research and Policy Studies. Five Award-Winning Monographs.

ERIC Educational Resources Information Center

Ohio State Univ., Columbus. National Center for Research in Vocational Education.

This document presents five winning entries in the second annual competition for papers reporting research and policy studies on the topic of youth employability. In their paper entitled "The Impact of Employment and Training Programs on the Work Attitudes of Disadvantaged Youth," Michael Forcier and Andrew Hahn review and synthesize the…

Chapter in book "Many Body Structure of Strongly Interacting Systems, Refereed and Selected Contributions from the Symposium '20 Years of Physics at the Mainz Microtron MAMI,'" Part I, Editors: Arenhövel, H.; Backe, H.; Drechsel, D.; Friedrich, J.; Kaiser, K.-H.; Walcher, Th., p.7-17 (contribution entitled Physics at the Thomas Jefferson National Accelerator Facility)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lawrence Cardman

2006-09-01

The Continuous Electron Accelerator Facility, CEBAF, located at the Thomas Jefferson National Accelerator Facility, is devoted to the investigation of the electromagnetic structure of mesons, nucleons, and nuclei using high energy, high duty-cycle electron and photon beams. Selected experimental results of particular interest to the MAMI community are presented.

Comparison of del Nido and St Thomas Cardioplegia Solutions in Pediatric Patients: A Prospective Randomized Clinical Trial.

PubMed

Talwar, Sachin; Bhoje, Amolkumar; Sreenivas, Vishnubhatla; Makhija, Neeti; Aarav, Sudheer; Choudhary, Shiv Kumar; Airan, Balram

2017-01-01

We conducted a prospective randomized trial to compare del Nido (DN) cardioplegia with conventional cold blood cardioplegia (St Thomas [STH]) in pediatric patients. We randomized 100 pediatric patients aged ≤12 years undergoing elective repair of ventricular septal defects and tetralogy of Fallot to the DN and the STH groups. In the DN group, a 20 mL/kg single dose was administered. In the STH group, a 30 mL/kg dose was administered, followed by repeated doses at 25- to 30-minute intervals. The primary outcome was cardiac index that was measured 4 times intra- and postoperatively. Troponin-I, interleukin-6, and tissue necrosis factor-alpha were measured. Myocardial biopsy was obtained to assess electron-microscopic ultrastructural changes. Cardiac indices were significantly higher in the DN group than in the STH group 2 hours after termination of cardiopulmonary bypass (P = 0.0006), after 6 hours (P = 0.0006), and after 24 hours (P ≤ 0.0001). On repeated measure regression analysis, the cardiac index was on an average 0.50 L/min/m 2 higher in the DN group than in the STH group at any time point (P = 0.002). Duration of mechanical ventilation (P = 0.01), intensive care unit stay (P = 0.01), and hospital stay (P = 0.0007) was significantly lower in the DN group. Patients in the DN group exhibited lower troponin-I release 24 hours following cardiopulmonary bypass (P = 0.021). Electron microscopic studies showed more myofibrillar disarray in the STH group (P = 0.02). Use of long-acting DN cardioplegia solution was associated with better preservation of cardiac index, lesser troponin-I release, and decreased morbidity. Ultrastructural changes showed better preservation of myofibrillar architecture. Copyright © 2017 Elsevier Inc. All rights reserved.

Hurricane Maria, 2017 Hydrographic Response for Puerto Rico and U.S. Virgin Islands by the NOAA Ship Thomas Jefferson

NASA Astrophysics Data System (ADS)

Gump, D.; Klemm, A.; van Westendorp, C.; Wood, D. A.; Doroba, J.

2017-12-01

After many coastal natural disasters, ports and harbors must be surveyed for navigation dangers, cleared, and opened as quickly as possible to facilitate recovery and reconstruction. The appropriate survey asset to use varies by location and condition. Routinely, hydrographic response to a natural disaster is conducted by survey teams with trailer-hitched vessels deployed quickly by land. This was the case for Hurricanes Harvey, Irma and Nate which struck mainland U.S. In the U.S. territories of Puerto Rico and the Virgin Islands post-Hurricane Maria, however, the devastation to the regional infrastructure resulted in a dearth of adequate accommodations, fuel, security and passable roads required to support a land-based response. On September 24th, 2017, NOAA Ship Thomas Jefferson (TJ), a 208-foot-long hydrographic survey vessel with a 38-person complement and two 28-foot-long survey launches, began an uninterrupted 20-day cruise to survey major ports around the islands. The ship's crew acquired high-resolution multibeam echo sounder (MBES) and concurrent object-detection side scan sonar (SSS) in and around 18 individual port facilities in 13 areas. The TJ is the appropriate platform for sustained remote response due to a self-contained infrastructure that supports deployment and recovery of survey launches, as well as 24/7 data processing facilities. The TJ crew produced digital terrain models and SSS mosaics, in addition to developing new reports on specific hazards overnight. These products quickly informed responders, stakeholders and responsible authorities about the efficacy of waterways.

Taxonomic revision of the Dasypus kappleri complex, with revalidations of Dasypus pastasae (Thomas, 1901) and Dasypus beniensis Lönnberg, 1942 (Cingulata, Dasypodidae).

PubMed

Feijó, Anderson; Cordeiro-Estrela, Pedro

2016-09-23

Dasypus kappleri is the largest species of the genus Dasypus and is restricted to the Amazonian rainforest biome. Over the last century, related taxa have been described and synonymized without comprehensive analyses, and the current classification involving two subspecies, Dasypus k. kappleri and Dasypus k. pastasae, has never been revised. The aim of this work is to clarify the taxonomy of Dasypus kappleri through integrative morphological and morphometric analyses. We examined 70 specimens housed in scientific collections as well as photographs of the type specimens of five nominal taxa. Three methodologies (discrete characters, linear and geometric morphometrics) were employed. All results converged on the recognition of three allopatric groups, each with diagnostic qualitative and quantitative traits, that we recognize as full species: Dasypus kappleri Krauss, 1862, occurs in the Guiana shield; Dasypus pastasae (Thomas, 1901) is distributed from the eastern Andes of Peru, Ecuador, Colombia, and Venezuela south of the Orinoco River into the western Brazilian Amazon; and Dasypus beniensis Lönnberg, 1942, occurs in the lowlands of Amazonian Brazil and Bolivia to the south of the Madre de Dios, Madeira, and lower Amazon rivers. This revision raises to nine the number of living species of Dasypus.

Use of Representation Mapping to Capture Abstraction in Problem Solving in Different Courses in Chemistry

ERIC Educational Resources Information Center

Sevian, H.; Bernholt, S.; Szteinberg, G. A.; Auguste, S.; Pérez, L. C.

2015-01-01

A perspective is presented on how the representation mapping framework by Hahn and Chater (1998) may be used to characterize reasoning during problem solving in chemistry. To provide examples for testing the framework, an exploratory study was conducted with students and professors from three different courses in the middle of the undergraduate…

Research Library Issues: A Bimonthly Report from ARL, CNI, and SPARC. RLI 262

ERIC Educational Resources Information Center

Barrett, G. Jaia, Ed.

2009-01-01

This issue of "Research Library Issues" includes the following articles: (1) The University's Role in the Dissemination of Research and Scholarship--A Call to Action; (2) ARL Statement to Scholarly Publishers on the Global Economic Crisis (Karla Hahn); (3) Reinventing Science Librarianship: Themes from the ARL-CNI Forum (Elisabeth Jones); and (4)…

A cross-polarization based rotating-frame separated-local-field NMR experiment under ultrafast MAS conditions

NASA Astrophysics Data System (ADS)

Zhang, Rongchun; Damron, Joshua; Vosegaard, Thomas; Ramamoorthy, Ayyalusamy

2015-01-01

Rotating-frame separated-local-field solid-state NMR experiments measure highly resolved heteronuclear dipolar couplings which, in turn, provide valuable interatomic distances for structural and dynamic studies of molecules in the solid-state. Though many different rotating-frame SLF sequences have been put forth, recent advances in ultrafast MAS technology have considerably simplified pulse sequence requirements due to the suppression of proton-proton dipolar interactions. In this study we revisit a simple two-dimensional 1H-13C dipolar coupling/chemical shift correlation experiment using 13C detected cross-polarization with a variable contact time (CPVC) and systematically study the conditions for its optimal performance at 60 kHz MAS. In addition, we demonstrate the feasibility of a proton-detected version of the CPVC experiment. The theoretical analysis of the CPVC pulse sequence under different Hartmann-Hahn matching conditions confirms that it performs optimally under the ZQ (w1H - w1C = ±wr) condition for polarization transfer. The limits of the cross polarization process are explored and precisely defined as a function of offset and Hartmann-Hahn mismatch via spin dynamics simulation and experiments on a powder sample of uniformly 13C-labeled L-isoleucine. Our results show that the performance of the CPVC sequence and subsequent determination of 1H-13C dipolar couplings are insensitive to 1H/13C frequency offset frequency when high RF fields are used on both RF channels. Conversely, the CPVC sequence is quite sensitive to the Hartmann-Hahn mismatch, particularly for systems with weak heteronuclear dipolar couplings. We demonstrate the use of the CPVC based SLF experiment as a tool to identify different carbon groups, and hope to motivate the exploration of more sophisticated 1H detected avenues for ultrafast MAS.

Quantum decoherence dynamics of divacancy spins in silicon carbide

DOE PAGES

Seo, Hosung; Falk, Abram L.; Klimov, Paul V.; ...

2016-09-29

Long coherence times are key to the performance of quantum bits (qubits). Here, we experimentally and theoretically show that the Hahn-echo coherence time of electron spins associated with divacancy defects in 4H-SiC reaches 1.3 ms, one of the longest Hahn-echo coherence times of an electron spin in a naturally isotopic crystal. Using a first-principles microscopic quantum-bath model, we find that two factors determine the unusually robust coherence. First, in the presence of moderate magnetic fields (30mT and above), the 29Si and 13C paramagnetic nuclear spin baths are decoupled. In addition, because SiC is a binary crystal, homo-nuclear spin pairs aremore » both diluted and forbidden from forming strongly coupled, nearest-neighbour spin pairs. Longer neighbour distances result in fewer nuclear spin flip-flops, a less fluctuating intra-crystalline magnetic environment, and thus a longer coherence time. Lastly, our results point to polyatomic crystals as promising hosts for coherent qubits in the solid state.« less

Economics and politics of climate change

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hahn, R.W.

1998-12-31

A fundamental issue is what steps, if any, nations should take to control greenhouse gas emissions. Robert Hahn argues that over the next decade the best strategy for policy makers is to build institutions that can address climate change in the future by developing a capacity at the nation-state level to measure greenhouse gas emissions and to implement and enforce cost-effective ways of limiting emissions. Policy makers must also improve the capacity of an international body to assess greenhouse gas inventories and review national policies. Hahn recommends that the developed nations craft an agreement for the next decade that providesmore » a slight emission limitation and allows for a series of case studies, in which developing nations would participate, to preserve diversity and build useful institutional knowledge. The Economics and Politics of Climate Change is one in a series of new AEI studies related to the globalization of environmental policy. These studies will focus on specific issues and on the new institutional arrangements required to deal with them. A list of publications in this series appears inside.« less

Pleistocene Hominins as a Resource for Carnivores: A c. 500,000-Year-Old Human Femur Bearing Tooth-Marks in North Africa (Thomas Quarry I, Morocco)

PubMed Central

Daujeard, Camille; Geraads, Denis; Gallotti, Rosalia; Lefèvre, David; Mohib, Abderrahim; Raynal, Jean-Paul; Hublin, Jean-Jacques

2016-01-01

In many Middle Pleistocene sites, the co-occurrence of hominins with carnivores, who both contributed to faunal accumulations, suggests competition for resources as well as for living spaces. Despite this, there is very little evidence of direct interaction between them to-date. Recently, a human femoral diaphysis has been recognized in South-West of Casablanca (Morocco), in the locality called Thomas Quarry I. This site is famous for its Middle Pleistocene fossil hominins considered representatives of Homo rhodesiensis. The bone was discovered in Unit 4 of the Grotte à Hominidés (GH), dated to c. 500 ky and was associated with Acheulean artefacts and a rich mammalian fauna. Anatomically, it fits well within the group of known early Middle Pleistocene Homo, but its chief point of interest is that the diaphyseal ends display numerous tooth marks showing that it had been consumed shortly after death by a large carnivore, probably a hyena. This bone represents the first evidence of consumption of human remains by carnivores in the cave. Whether predated or scavenged, this chewed femur indicates that humans were a resource for carnivores, underlining their close relationships during the Middle Pleistocene in Atlantic Morocco. PMID:27120202

Retraction of "Women's Preference for Attractive Makeup Tracks Changes in Their Salivary Testosterone".

PubMed

2016-03-01

At the request of the authors, the following article has been retracted by the Editor and publishers of Psychological Science:Fisher, C. I., Hahn, A. C., DeBruine, L. M., & Jones, B. C. (2015). Women's preference for attractive makeup tracks changes in their salivary testosterone. Psychological Science, 26, 1958-1964. doi:10.1177/0956797615609900. © The Author(s) 2016.

Europe/Latin America Report Science and Technology.

DTIC Science & Technology

1997-01-15

Partners: Mr. W. Horak Siemens A.G. KO AP 313 Otto Hahn Ring 6 D-8000München 83 Tel: 49-89-72223728 Tlx: 521090 Fax: 49-89-63647140 Siemens A.G...operate the equipment, Dr Joao Renato Pinho of the Adolfo Lutz Institute is pursuing studies in molecular hybridization at the University of Lyons, in

News | News

Science.gov Websites

you the rundown on what to expect to come out of neutrino research in the coming years. Simone supporting the LBNF/DUNE project. Five (more) fascinating facts about DUNE May 17, 2018 Engineering the of the program for members and staff of the House Science Committee. Photo: Reidar Hahn A five-member

Where are the Black Walnut Trees in Missouri? 1995.

Treesearch

J. Michael Vasievich; Neal P. Kingsley

1995-01-01

Walnut trees are well distributed and relatively abundant in Missouri according to the most recent forest inventory completed in 1989. The forest inventory (Hahn 1991) reports that 7.3 billion trees were found on Missouri timberlands and that 1 in 100 were black walnuts. Digging into the Eastwide Forest Inventory Data Base (Hansen et al. 1992) provides more...

Why Three Heads Are a Better Bet than Four: A Reply to Sun, Tweney, and Wang (2010)

ERIC Educational Resources Information Center

Hahn, Ulrike; Warren, Paul A.

2010-01-01

We (Hahn & Warren, 2009) recently proposed a new account of the systematic errors and biases that appear to be present in people's perception of randomly generated events. In a comment on that article, Sun, Tweney, and Wang (2010) critiqued our treatment of the gambler's fallacy. We had argued that this fallacy was less gross an error than it…

Development of DNA barcodes of genus Lygus Hahn (Hemiptera: Miridae)

USDA-ARS?s Scientific Manuscript database

The genus Lygus (Hemiptera: Miridae) is an important group of insects that contains 43 known species worldwide. Some species within this genus are important agricultural pests in North America. Annual economic impacts in cotton, Gossypium hirsutum L., from Lygus spp. due to yield losses and control ...

The 2009 Kurt Hahn Address: Seeking Deeper Understandings from Experiences

ERIC Educational Resources Information Center

Knapp, Clifford E.

2010-01-01

This address used a narrative style to convey several stories drawn from the speaker's life. These stories illustrated various points about the value of experience for expanding learners' deep understandings of the content through the use of know-how knowledge. Know-how knowledge was contrasted with know-that knowledge in order to demonstrate the…

Thomas Willis, a pioneer in translational research in anatomy (on the 350th anniversary of Cerebri anatome)

PubMed Central

Arráez-Aybar, Luis-Alfonso; Navia-Álvarez, Pedro; Fuentes-Redondo, Talia; Bueno-López, José-L

2015-01-01

The year 2014 marked the 350th anniversary of the publication in London of Cerebri anatome, a ground-breaking work of neuroscience heavily influenced by the political and cultural context of Baroque Europe and mid-17th century England. This article aims to review the work of the English physician and anatomist Thomas Willis, specifically with regard to the contents of his Cerebri anatome. Willis's academic and professional career was influenced by the turbulent period of the English Civil War during which he studied medicine. Willis went from chemistry to dissection arguably because of his need to justify the body-brain-soul relationship. As a result, he became a fellow of a select club of eminent experimentalists, and afterward was a Fellow of the Royal Society. Later on, he went to London, leaving the academic life to dedicate himself fully to the profession of medicine. As a physician, Willis did not base his practice on aphorisms but on a ‘bench to bedside’ approach to medicine, while studying neuroanatomy – covering embryology, comparative anatomy and pathological anatomy – as a basis for the comprehension of neurological pathology. He developed innovative anatomical methods for the preservation and dissection of the brain, injection of coloured substances and illustration of his findings. In Cerebri anatome, Willis recognized the cerebral cortex as the substrate of cognition. He also claimed that the painful stimuli came from the meninges, but not from the brain itself. He explained for the first time the pathological and functional meaning of the brain's circular arterial anastomosis, which is named after him. He also specified some features of the cranial origin of the sympathetic nerves and coined the term ‘neurologie’. Cerebri anatome marked the transition between the mediaeval and modern notions of brain function, and thus it is considered a cornerstone of clinical and comparative anatomy of the nervous system. The new contributions and

2005 International Infantry and Joint Services Small Arms Systems Annual Symposium Exhibition and Firing Demonstration

DTIC Science & Technology

2005-05-19

Noon Awards Luncheon Chinn Award Presentation Mr. Richard Audette, Chinn Award Recipient, 2005 Presented by Mr. Joel Goldman Hathcock ...Award Presentation Mr. Christopher P. Mitternight, Hathcock Award Recipient, 2005 Presented by Mr. Charles Buxton 1:30 - 5 PM Concurrent Sessions...Schedule) 1Q/FY08 POC: James Hahn / 973-724-2117 PM: Chris Grassano / 973-724-5246 Technology Supercapacitor based power

The Effect of 8.25% Sodium Hypochlorite on Dental Pulp Dissolution and Dentin Flexural Strength and Modulus

DTIC Science & Technology

2015-06-18

sodium hypochlorite (NaOCl) became a main irrigant in endodontics (6) and is currently the preferred endodontic ... sodium hypochlorite used during endodontic irrigation (8). Since there may be many different concentrations of sodium hypochlorite available, the dentist...A, Brandt M. Toxicity of concentrated sodium hypochlorite used as an endodontic irrigant. Int Endod J 2004;37:272–80. 18. Hulsmann M, Hahn

Dana-Farber Cancer Institute | Office of Cancer Genomics

Cancer.gov

Functional Annotation of Cancer Genomes Principal Investigator: William C. Hahn, M.D., Ph.D. The comprehensive characterization of cancer genomes has and will continue to provide an increasingly complete catalog of genetic alterations in specific cancers. However, most epithelial cancers harbor hundreds of genetic alterations as a consequence of genomic instability. Therefore, the functional consequences of the majority of mutations remain unclear.

Humpty Dumpty Reconsidered: Seeing Things Whole in Outward Bound.

ERIC Educational Resources Information Center

Horwood, Bert

For education to make a lasting difference in people's lives, it must touch all dimensions of being human in ways that are integrated or holistic. Content and instructional methods, such as those of Kurt Hahn and Charity James, that are based on images of the intact human being see things whole from the beginning. But our school experience and the…

Demonstrating the Ecosystem Effects of Armored Suckermouth Catfishes (Loricariidae): A Feasibility Study Using Mesocosms

DTIC Science & Technology

2013-11-01

Figure 2. Native fish used in the mesocosm study: golden topminnow (Fundulus chrysotus). Photo by Mark Binkley, jonahsaquarium.com. Cover in each...Suckermouth Catfishes (Loricariidae): A Feasibility Study Using Mesocosms by Jan Jeffrey Hoover, Nicky M. Hahn, and Jay A. Collins PURPOSE: The...armored suckermouth catfishes, or simply suckermouth catfishes. The authors’ solution is to use mesocosms, medium-sized containers that replicate aquatic

Ultimate RHIC Performance Estimates

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hahn, H.

1986-11-10

The RHIC performance estimates for pp operation given in the Conceptual Design report are intentionally conservative as to energy and luminosity. The ultimate RHIC performance was estimated by an ad-hoc comittee with F.Dell, H. Foelsche, H. Hahn, S.Y. Lee, G. Parzen, E. Raka, S. Tepikian, and P. Thompson as members. The present note summarizes the committee's conclusions.

Assessing land use, sedimentation, and water quality stressors as predictors of coral reef condition in St. Thomas, U.S. Virgin Islands.

PubMed

Oliver, L M; Fisher, W S; Fore, L; Smith, A; Bradley, P

2018-03-13

Coral reef condition on the south shore of St. Thomas, U.S. Virgin Islands, was assessed at various distances from Charlotte Amalie, the most densely populated city on the island. Human influence in the area includes industrial activity, wastewater discharge, cruise ship docks, and impervious surfaces throughout the watershed. Anthropogenic activity was characterized using a landscape development intensity (LDI) index, sedimentation threat (ST) estimates, and water quality (WQ) impairments in the near-coastal zone. Total three-dimensional coral cover, reef rugosity, and coral diversity had significant negative coefficients for LDI index, as did densities of dominant species Orbicella annularis, Orbicella franksi, Montastraea cavernosa, Orbicella faveolata, and Porites porites. However, overall stony coral colony density was not significantly correlated with stressors. Positive relationships between reef rugosity and ST, between coral diversity and ST, and between coral diversity and WQ were unexpected because these stressors are generally thought to negatively influence coral growth and health. Sponge density was greater with higher disturbance indicators (ST and WQ), consistent with reports of greater resistance by sponges to degraded water quality compared to stony corals. The highest FoRAM (Foraminifera in Reef Assessment and Monitoring) indices indicating good water quality were found offshore from the main island and outside the harbor. Negative associations between stony coral metrics and LDI index have been reported elsewhere in the Caribbean and highlight LDI index potential as a spatial tool to characterize land-based anthropogenic stressor gradients relevant to coral reefs. Fewer relationships were found with an integrated stressor index but with similar trends in response direction.

49 CFR 71.7 - Boundary line between central and mountain zones.

Code of Federal Regulations, 2011 CFR

2011-10-01

.... 30 W.; thence southerly along the range line to the north line of Thomas County; thence westerly along the north line of Thomas County to the west line of Thomas County; thence south along the west line of Thomas County to the north line of McPherson County; thence west along the north line of...

76 FR 38178 - Change in Bank Control Notices; Acquisitions of Shares of a Bank or Bank Holding Company

Federal Register 2010, 2011, 2012, 2013, 2014

2011-06-29

..., New York, New York 10045-0001: 1. Thomas H. Lee (Alternative) Fund VI, L.P., Thomas H. Lee (Alternative) Parallel Fund VI, L.P., Thomas H. Lee (Alternative) Parallel (DT) Fund VI, L.P., THL FBC Equity Investors, L.P., THL Advisors (Alternative) VI, L.P., Thomas H. Lee (Alternative) VI, Ltd., THL Managers VI...

Staged Reading of the Play: Delicate Particle Logic

NASA Astrophysics Data System (ADS)

2016-03-01

The play explores the relationship between science and art through the story of the discovery of nuclear fission. Under the harshly male-dominated science elite of the time, Lise Meitner broke through to become the leader of a major scientific institute, and the first woman to have the title of ``Professor'' in all of Germany. Along with her long-time partner, chemist Otto Hahn, she began a series of experiments that led to the discovery of nuclear fission. The play presents a meeting between Dr. Meitner and Hahn's wife, Edith, who was a painter. The complicated swirl of their intertwined lives, two women and one man, mixes with the violent upheavals in the world, as the Nazis take over Germany and everything changes. The playwright is Jennifer Blackmer who is a faculty member in theatre at Ball State University http://www.jenniferblackmer.com/ and the staged reading is performed by the Pioneer Theatre Company, http://www.pioneertheatre.org/ of Salt Lake City. After the performance, the director and the actors will be available for a talk-back audience discussion. Produced by Brian Schwartz, Brooklyn College and the Graduate Center of the City University of New York.

STS-121: Discovery L-1 Countdown Status Briefing

NASA Technical Reports Server (NTRS)

2006-01-01

Bruce Buckingham, NASA Public Affairs, introduces Jeff Spaulding, NASA Test Director; Debbie Hahn, STS-121 Payload Manager; and Kathy Winters, Shuttle Weather Officer. Spaulding gives his opening statement on this one day prior to the launching of the Space Shuttle Discovery. He discusses the following topics: 1) Launch of the Space Shuttle Discovery; 2) Weather; 3) Load over of onboard reactants; 4) Hold time for liquid hydrogen; 5) Stowage of Mid-deck completion; 6) Check-out of onboard and ground network systems; 7) Launch windows; 8) Mission duration; 9) Extravehicular (EVA) plans; 10) Space Shuttle landing day; and 11) Scrub turn-around plans. Hahn presents and discusses a short video of the STS-121 payload flow. Kathy Winters gives her weather forecast for launch. She then presents a slide presentation on the following weather conditions for the Space Shuttle Discovery: 1) STS-121 Tanking Forecast; 2) Launch Forecast; 3) SRB Recovery; 4) CONUS Launch; 5) TAL Launch; 6) 24 Hour Delay; 7) CONUS 24 Hour; 8) TAL 24 Hour; 9) 48 Hour Launch; 10) CONUS 48 Hour; and 11) TAL 48 Hour. The briefing ends with a question and answer period from the media.

The Thomas-Fermi model in the theory of systems of charged particles above the surface of liquid dielectrics

NASA Astrophysics Data System (ADS)

Lytvtnenko, D. M.; Slyusarenko, Yu. V.; Kirdin, A. I.

2012-10-01

A consistent theory of equilibrium states of same sign charges above the surface of liquid dielectric film located on solid substrate in the presence of external attracting constant electric field is proposed. The approach to the development of the theory is based on the Thomas-Fermi model generalized to the systems under consideration and on the variational principle. The using of self-consistent field model allows formulating a theory containing no adjustable constants. In the framework of the variational principle we obtain the self-consistency equations for the parameters describing the system: the distribution function of charges above the liquid dielectric surface, the electrostatic field potentials in all regions of the system and the surface profile of the liquid dielectric. The self-consistency equations are used to describe the phase transition associated with the formation of spatially periodic structures in the system of charges on liquid dielectric surface. Assuming the non-degeneracy of the gas of charges above the surface of liquid dielectric film the solutions of the self-consistency equations near the critical point are obtained. In the case of the symmetric phase we obtain the expressions for the potentials and electric fields in all regions of the studied system. The distribution of the charges above the surface of liquid dielectric film for the symmetric phase is derived. The system parameters of the phase transition to nonsymmetric phase - the states with a spatially periodic ordering are obtained. We derive the expression determining the period of two-dimensional lattice as a function of physical parameters of the problem - the temperature, the external attractive electric field, the number of electrons per unit of the flat surface area of the liquid dielectric, the density of the dielectric, its surface tension and permittivity, and the permittivity of the solid substrate. The possibility of generalizing the developed theory in the case of

Fusion reaction cross-sections using the Wong model within Skyrme energy density based semiclassical extended Thomas Fermi approach

NASA Astrophysics Data System (ADS)

Kumar, Raj; Sharma, Manoj K.; Gupta, Raj K.

2011-11-01

First, the nuclear proximity potential, obtained by using the semiclassical extended Thomas Fermi (ETF) approach in Skyrme energy density formalism (SEDF), is shown to give more realistic barriers in frozen density approximation, as compared to the sudden approximation. Then, taking advantage of the fact that, in ETF method, different Skyrme forces give different barriers (height, position and curvature), we use the ℓ-summed extended-Wong model of Gupta and collaborators (2009) [1] under frozen densities approximation for calculating the cross-sections, where the Skyrme force is chosen with proper barrier characteristics, not-requiring additional "barrier modification" effects (lowering or narrowing, etc.), for a best fit to data at sub-barrier energies. The method is applied to capture cross-section data from 48Ca + 238U, 244Pu, and 248Cm reactions and to fusion-evaporation cross-sections from 58Ni + 58Ni, 64Ni + 64Ni, and 64Ni + 100Mo reactions, with effects of deformations and orientations of nuclei included, wherever required. Interestingly, whereas the capture cross-sections in Ca-induced reactions could be fitted to any force, such as SIII, SV and GSkI, by allowing a small change of couple of units in deduced ℓ-values at below-barrier energies, the near-barrier data point of 48Ca + 248Cm reaction could not be fitted to ℓ-values deduced for below-barrier energies, calling for a check of data. On the other hand, the fusion-evaporation cross-sections in Ni-induced reactions at sub-barrier energies required different Skyrme forces, representing "modifications of the barrier", for the best fit to data at all incident center-of-mass energies E's, displaying a kind of fusion hindrance at sub-barrier energies. This barrier modification effect is taken into care here by using different Skyrme forces for reactions belonging to different regions of the periodic table. Note that more than one Skyrme force (with identical barrier characteristics) could equally well

Program Evaluation of Post-Deployment Health Assessment (PDHA) and Reassessment Processes (PDHRA) Processes

DTIC Science & Technology

2009-12-01

and have provided validation of screening items included on the PDHRA (Bliese, Wright, Adler, & Thomas , 2004a; Bliese, Wright, Adler, Thomas , & Hoge...concordance and symptom reporting (Aziz & Kenford, 2004; Greenfield, Midanik, & Rogers, 2000; Rhode, Lewinsohn, & Seeley , 1997) Concordance, including...Bliese, Wright, Adler, Hoge, & Prayner, 2005; Bliese, Wright, Adler, & Thomas , 2004; Bliese, Wright, Adler, Thomas , & Hoge, 2004) reported

Can dryland geoproxy data generate Quaternary palaeoclimate and palaeoenvironmental records?

NASA Astrophysics Data System (ADS)

Thomas, David S. G.

2017-04-01

Dryland regions present many challenges for robustly reconstructing late Quaternary palaeoenvironments and palaeoclimates, not least a common deficit, or considerable spatial variability, in the availability of high resolution biological proxy data sources. Substantial advances have been made in some regions in recent years, through the exploitation of new high resolution biomarker and isotope records, for example from hyrax middens (e.g. Chase et al., 2012) and from offshore sediments (e.g. Collins et al., 2014). In others however, suitable data sources for these approaches are absent, so these approaches are not available or if data are applied from distant sources, subject to risks of excessive spatial extrapolation of records in environmental contexts where environmental gradients are steep and variability is common (Thomas and Burrough, 2012, Thomas et al., 2013). In these contexts, geoproxy records, derived from the analysis of landforms and their associated sediments, are often utilised in dryland Quaternary research (e.g. Burrough and Thomas 2009, Stone and Thomas, 2013, Thomas, 2013, Lancaster et al., 2015), but with a number of associated difficulties (e.g. Chase, 2009). This paper examines these difficulties and then explores different approaches to the analysis of Quaternary landform records. It is argued that geoproxies with chronometric control, usually provided by OSL dating, have considerable potential to improve data on Quaternary environmental and climate dynamics, if records are interpreted effectively and appropriately (e.g. Bailey and Thomas, 2014, Thomas and Burrough, 2016). Examples of challenges and new approaches will be drawn from aeolian and fluvial domains, and from research in Africa, Australia and Arabia. Bailey RM, Thomas DSG 2014 Earth Surf. Proc. Landf. 39, 614-631. Burrough SL, Thomas DSG 2009. Geomorphology 103, 285-298. Chase, B 2009. Earth-Sci Rev. 93, 31-45. Chase BM et al. 2010 Quat. Sci. Rev. 56, 107-125. Collins JA et al

diversity | News

Science.gov Websites

, 2018 | Mario Lucero As a group, the Asian/Pacific community at Fermilab is the largest ethnic group, at schoolers April 30, 2018 Jose de la O leads a group on a tour of the lab's accelerators. Photo: Reidar Hahn only about self-doubt in one's abilities, but the thrill of making a discovery and being the one to

The Shock and Vibration Bulletin. Part 3. Shock Testing, Shock Analysis

DTIC Science & Technology

1974-08-01

APPROXIMATE TRANSFORMATION C.S. O’Hearne and J.W. Shipley, Martin Marietta Aerospace, Orlando, Florida LINEAR LUMPED-MASS MODELING TECHNIQUES FOR BLAST LOADED...Leppert, B.K. Wada, Jet Propulsion Laboratory, Pasadena, California, and R. Miyakawa, Martin - Marietta Aerospace, Denver, Colorado (assigned to the Jet...Wilmington, Delaware Vibration Testing and Analysis DEVELOPMENT OF SAM-D MISSILE RANDOM VIBRATION RESPONSE LOADS P.G. Hahn, Martin Marietta Aerospace

The Shock Vibration Bulletin. Part 2. Instrumentation, Shock Analysis, and Shock Testing

DTIC Science & Technology

1987-01-01

121 M. J. Evans and V. H. Neubert , The Pennsylvania State University, University Partk, PA, and L. 3...Research Laboratory, Washington, DC Wednesday Nondevelopment Mr. James W. Daniel, Mr. Paul Hahn, 15 October, A.M. Items Workshop, U.S. Army Missile Martin...Marietta Session I, Command, Orlando Aerospace, Methods Rcdstone Arsenal, AL Orlando, FL Wednesday Structural Mr. Stanley Barrett, Mr. W. Paul Dunn, 15

An Empirical Investigation of Factors Influencing Knowledge Management System Success

DTIC Science & Technology

2008-03-01

management systems and developing sustainable competitive advantage. Journal of Knowledge Management, 7(2), 142- 154. Ajzen , I ., & Fishbein , M . (1980...Information Systems (Hoadley, E.D. & Benbasat, I . Eds.), p. 588-90. Hahn, J., & Subramani, M . R. ( 2000 ). A framework of knowledge manage systems...person should or should not use KMSs to perform a task ( Ajzen & Fishbein , 1980). Subjective norms relate to the perceptions of general social pressure

A Leg up

ERIC Educational Resources Information Center

Henderson, Nancy

2010-01-01

This article features Jordan Thomas, who lost his feet in a spear fishing accident in August 2005. It describes how Thomas turned his own loss into a way to help kids get the prosthetics they need. Just three weeks after losing his feet, Thomas filed the paperwork for the Jordan Thomas Foundation, which aims to raise funds for prosthetic limbs for…