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Effects Of Dextro-Methamphetamine On Subjective Fatigue, C. A. Dejohn, Scott Shappell, D. F. Neri Aug 1992

Effects Of Dextro-Methamphetamine On Subjective Fatigue, C. A. Dejohn, Scott Shappell, D. F. Neri

Publications

Declining aircrew performance during periods of sustained flight operations (SUSOPs) has underscored the need to develop effective countermeasures. This paper reports on the ability of the central nervous system (CNS) stimulant d-methamphetamine to alleviate the detrimental effects of a simulated SUSOPs on subjective fatigue. Subjective fatigue was repeatedly measured by three questionnaires. The simulated SUSOP started at 1800 and consisted of a 9-h planning session followed by 4 h of rest and a 14-h mission. After 6 h of sleep, the 9/4/14 work/rest/work pattern was repeated. At 4 1/2 h into the second mission, 13 subjects were administered 10 mg …

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Sic Particles From Asymptotic Giant Branch Stars: Mg Burning And The S-Process, Lawrence E. Brown, Donald D. Clayton Jun 1992

Sic Particles From Asymptotic Giant Branch Stars: Mg Burning And The S-Process, Lawrence E. Brown, Donald D. Clayton

Publications

The question of whether isotopically anomalous SiC particles found in meteorites originate in AGB stars is addressed. It is shown that if the peak helium shell flash temperatures of massive (6-9 solar masses) stars are about 10 percent larger than they are normally assumed to be, alpha particle reactions with the magnesium will become significant. Then the (Mg-29)(alpha, n)Si-29 reaction produces a large excess of Si-29. With a light element nuclear reaction network, the evolution of the silicon isotopic composition during AGB evolution is calculated. It is found that the experimentally determined correlation between excess Si-29 and excess Si-30 in …

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Meteoritics And The Origins Of Atomic Nuclei, Donald D. Clayton Jun 1992

Meteoritics And The Origins Of Atomic Nuclei, Donald D. Clayton

Publications

The science of nucleosynthesis was substantially inspired by chemical analyses of meteorites. As if in repayment, that theory now imbues meteoritics with enlarged meaning. I recount the emergence of four great issues for nucleosynthesis—issues that received decades of my own attention; and I describe unexpected abundance patterns within meteorites that were suggested by the resolution of those issues. The latter have altered the information content of meteoritic science.

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Uaa Student Showcase Journal: Recognizing Excellence (Spring, 1992), N/A N/A Apr 1992

Uaa Student Showcase Journal: Recognizing Excellence (Spring, 1992), N/A N/A

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No abstract provided.

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Occasional Paper No. 092-1: Health Care Perceptions Of Nebraska's Urban & Rural Aged, James A. Thorson, F. C. Powell Apr 1992

Occasional Paper No. 092-1: Health Care Perceptions Of Nebraska's Urban & Rural Aged, James A. Thorson, F. C. Powell

Publications

Random samples were drawn in Douglas County, Nebraska (N = 196, mean age = 73.8 years), in the counties surrounding Douglas County also served by the Eastern Nebraska Office on Aging (N = 104, mean age = 72.4 years), and in eleven of the rural Sandhills counties of Nebraska (N = 200, mean age = 76.6). Participants responded to structured interviews of 169 questions that included self-assessed health status, availability of health care and physician services, costs, attitudes toward health care services, health experiences and beliefs. While the Sandhills respondents were significantly older and had less access to health services, …

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The B7/Bb1 Antigen Provides One Of Several Costimulatory Signals For The Activation Of Cd4+ T Lymphocytes By Human Blood Dendritic Cells In Vitro, James W. Young, Lydia Koulova, Steve A. Soergel Jan 1992

The B7/Bb1 Antigen Provides One Of Several Costimulatory Signals For The Activation Of Cd4+ T Lymphocytes By Human Blood Dendritic Cells In Vitro, James W. Young, Lydia Koulova, Steve A. Soergel

Publications

T cells respond to peptide antigen in association with MHC products on antigen-presenting cells (APCs). A number of accessory or costimulatory molecules have been identified that also contribute to T cell activation. Several of the known accessory molecules are expressed by freshly isolated dendritic cells, a distinctive leukocyte that is the most potent APC for the initiation of primary T cell responses. These include ICAM-1 (CD54), LFA-3 (CD58), and class I and II MHC products. Dendritic cells also constitutively express the accessory ligand for CD28, B7/BB1, which has not been previously identified on circulating leukocytes freshly isolated from peripheral blood. …

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Generation Of Large Numbers Of Dendritic Cells From Mouse Bone Marrow Cultures Supplemented With Granulocyte/Macrophage Colony-Stimulating Factor, Kayo Inaba, Muneo M. Inaba, Nikolaus Romani Jan 1992

Generation Of Large Numbers Of Dendritic Cells From Mouse Bone Marrow Cultures Supplemented With Granulocyte/Macrophage Colony-Stimulating Factor, Kayo Inaba, Muneo M. Inaba, Nikolaus Romani

Publications

Antigen-presenting, major histocompatibility complex (MHC) class II-rich dendritic cells are known to arise from bone marrow. However, marrow lacks mature dendritic cells, and substantial numbers of proliferating less-mature cells have yet to be identified. The methodology for inducing dendritic cell growth that was recently described for mouse blood now has been modified to MHC class II-negative precursors in marrow. A key step is to remove the majority of nonadherent, newly formed granulocytes by gentle washes during the first 2-4 d of culture. This leaves behind proliferating clusters that are loosely attached to a more firmly adherent “stroma.” At days 4-6 …

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Mechanisms Of Mouse Spleen Dendritic Cell Function In The Generation Of Influenza-Specific, Cytolytic T Lymphocytes, Rita Nonacs, Cornelia Humborg, James P. Tam, Ralph M. Steinman Jan 1992

Mechanisms Of Mouse Spleen Dendritic Cell Function In The Generation Of Influenza-Specific, Cytolytic T Lymphocytes, Rita Nonacs, Cornelia Humborg, James P. Tam, Ralph M. Steinman

Publications

We have evaluated the capacity of dendritic ceUs to function as antigen-presenting cells (APCs) for influenza and have examined their mechanism of action. Virus-pulsed dendritic cells were 100 times more efficent than bulk spleen ceUs in stimulating cytotoxic T lymphocyte (CTL) formation. The induction of CTLs required neither exogenous lymphokines nor APCs in the responding T cell population. Infectious virus entered dendritic cells through intraceUular acidic vacuoles and directed the synthesis of several viral proteins. If ultravidet (UV)-inactivated or bromdain-treated viruses were used, viral protein synthesis could not be detected, and there was poor induction of CTLs. This indicated that …

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Identification Of Proliferating Dendritic Cell Precursors In Mouse Blood, Kayo Inaba, Ralph M. Steinman, Margit D. Witmer-Pack Jan 1992

Identification Of Proliferating Dendritic Cell Precursors In Mouse Blood, Kayo Inaba, Ralph M. Steinman, Margit D. Witmer-Pack

Publications

While it has been known that dendritic cells arise from proliferating precursors in situ, it has been difficult to identify progenitors in culture. We find that aggregates of growing dendritic cells develop in cultures of mouse blood that are supplemented with granulocyte/macrophage colony-stimulating factor (GM-CSF) but not other CSFs. The dendritic cell precursor derives from the Ia-negative and nonadherent fraction. The aggregates of developing dendritic cells appear at about 1 wk of culture, with 100 or more such clusters being formed per 106 blood leukocytes. The aggregates can be dislodged and subcultured as expanding clusters that are covered with cells …

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Challenges And Successes With Including Kentucky's Parents In School-Based Decision Making: Pilot Year School Councils Respond, Jane Clark Lindle Jan 1992

Challenges And Successes With Including Kentucky's Parents In School-Based Decision Making: Pilot Year School Councils Respond, Jane Clark Lindle

Publications

The 1990 Kentucky Education Reform Act (KERA) provided, among other measures, a new governance body for schools called "School Councils." These school-based, decision-making councils are composed of parents and teachers and headed by principals. This paper presents findings of a study that explored the effects of KERA's provision for school councils on parent involvement. Data were gathered from a survey of a nonrandom sample of 1991-92 pilot school councils (n=66). Most school councils reported that they used only two or three ways to notify parents of meetings, and only one or two methods to apprise parents of school decisions. Some …

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Developing School Based Decision Making Capacities In Kentucky: Communication Satisfaction After The Pilot Year, Jane Clark Lindle Jan 1992

Developing School Based Decision Making Capacities In Kentucky: Communication Satisfaction After The Pilot Year, Jane Clark Lindle

Publications

Among several innovations in public school curriculum and financing, the 1990 Kentucky Education Reform Act (KERA) also included a school-governance provision. School-Based Decision Making (SBDM) Councils include administrators, teachers, and parents in addressing school-level curriculum and instructional issues. These groups have not had a history of collaboration. This paper presents findings of a study that described the developing relationships among these constituent groups at the end of the pilot year. Data were derived from a survey that asked 385 pilot-year School Council members to rate their satisfaction with council communication on a Likert-type inventory. Usable responses were received from 211 …

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High-Frequency Thresholds: Circumaural Earphone Versus Insert Earphone, Michael Valente, L. Maureen Valente, Joel Goebel Jan 1992

High-Frequency Thresholds: Circumaural Earphone Versus Insert Earphone, Michael Valente, L. Maureen Valente, Joel Goebel

Publications

No abstract provided.

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Heavy-Element Abundances From A Neutron Burst That Produces Xe-H, W Michael Howard, Bradley S. Meyer, Donald D. Clayton Jan 1992

Heavy-Element Abundances From A Neutron Burst That Produces Xe-H, W Michael Howard, Bradley S. Meyer, Donald D. Clayton

Publications

We examine quantitatively the suggestion that the heavy anomalous isotopes of Xe-HL found in meteoritic diamonds were produced by a short intense neutron burst and then implanted into the diamonds. Using a large nuclear reaction network we establish one (out of many) neutron irradiation histories that successfully reproduces the heavy isotopes of Xe-HL, and then evaluate what that same history would produce in every heavy element. This has become more relevant following recent measurement of anomalous Ba and Sr in those same diamond samples. Therefore we offer these calculations as a guide to the anomalies to be expected in all …

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School Leadership And Educational Reform: Parent Involvment, The Education For Handicapped Children Act, And The Principal, Jane Clark Lindle Jan 1992

School Leadership And Educational Reform: Parent Involvment, The Education For Handicapped Children Act, And The Principal, Jane Clark Lindle

Publications

Originally passed in 1975, the Education for Handicapped Children Act (EHA or P.L. 94-142) provided an unprecedented legislative definition of parent involvement. Congress mandated that parents be included in the educational decision-making process concerning handicapped children. This paper summarizes parent involvement as defined by the EHA, reviews the literature on implementation of EHA's provision for parent involvement, and offers recommendations for principals' leadership in supporting parent involvement. Principals are advised to create a school climate conducive to parent involvement through parent induction programs and staff development.

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Strom Thurmond Institute: Report Of Activities For July 1990-December 1991, 1992 Jan 1992

Strom Thurmond Institute: Report Of Activities For July 1990-December 1991, 1992

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No abstract provided.

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Journal Of The Community Development Society Vol. 23, No. 01, Center For Public Affairs Research (Cpar) Jan 1992

Journal Of The Community Development Society Vol. 23, No. 01, Center For Public Affairs Research (Cpar)

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The Journal of the Community Development Society (ISSN 001 0-3829) is devoted to improving knowledge and practice in the field of purposive community change. The purpose of the Journal is to disseminate information on theory, research, and practice. The Editor welcomes manuscripts that report research; evaluate theory, techniques, and methods; examine community problems; or analyze, critically, the profession itself. The Journal is published twice each year.

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Role Of Temperature, Dissolved Oxygen, And Backwaters In The Winter Survival Of Freshwater Drum (Aplodinotus Grunniens) In The Mississippi River, Leo R. Bodensteiner, William M. Lewis Jan 1992

Role Of Temperature, Dissolved Oxygen, And Backwaters In The Winter Survival Of Freshwater Drum (Aplodinotus Grunniens) In The Mississippi River, Leo R. Bodensteiner, William M. Lewis

Publications

Annual winter impingement of large numbers of freshwater drum (Aplodinotus grunniens) on screens of a power station intake on the Mississippi River led to an investigation of the cause of impingement. Impingement occurred most abundantly in winter and early spring and primarily involved juvenile fish. Pronounced drift of moribund and dead fish was found in the main channel above and below the power station in late winter. Laboratory studies indicated that juvenile freshwater drum became disoriented, incapacitated, and suffered increased mortality as water temperature dropped to 1 °C and below. In winter and early spring, temperatures were 0 …

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Against Constitutional Theory, Paul Campos Jan 1992

Against Constitutional Theory, Paul Campos

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No abstract provided.

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Media Masala: Why Women's Control Matters, Sarah Krakoff Jan 1992

Media Masala: Why Women's Control Matters, Sarah Krakoff

Publications

No abstract provided.

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Mysteries Of Violence And Self-Defense: Myths For Men, Cautionary Tales For Women, Marianne Wesson Jan 1992

Mysteries Of Violence And Self-Defense: Myths For Men, Cautionary Tales For Women, Marianne Wesson

Publications

No abstract provided.

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High-Frequency Thresholds: Sound Suite Versus Hospital Room, Michael Valente, Lisa G. Potts, L. Maureen Valente, Marilyn French-St. George, Joel Goebel Jan 1992

High-Frequency Thresholds: Sound Suite Versus Hospital Room, Michael Valente, Lisa G. Potts, L. Maureen Valente, Marilyn French-St. George, Joel Goebel

Publications

No abstract provided.

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Factor Analysis Of The Personal Profile System, Thomas G. Henkel, James Noel Wilmoth Jan 1992

Factor Analysis Of The Personal Profile System, Thomas G. Henkel, James Noel Wilmoth

Publications

Principal components extraction with orthogonal and oblique rotations tested construct validity for the Personal Profile System. MOST-LIKE endorsements of 96 behavioral descriptors were coded with 4, LEAST-LIKE with 1, and unendorsed with 2.5. Descriptor data from 1,045 senior noncommissioned Air Force officers were normalized. Four factors accounted for 85% of total variance, with 19 descriptors loading significantly on two factors and the remaining 77 on just one factor. The measure of sampling adequacy for every descriptor exceeded .94. One factor for the varimax-rotated (best) analysis was bi-scalar, loading on Steadiness and Compliance descriptors; a second resembled Influencing, a third loaded …

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A True Comprehensive Approach, Lakshman Guruswamy Jan 1992

A True Comprehensive Approach, Lakshman Guruswamy

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No abstract provided.

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The Revised Uniform Partnership Act: Some Comments On The Latest Draft Of Rupa, J. Dennis Hynes Jan 1992

The Revised Uniform Partnership Act: Some Comments On The Latest Draft Of Rupa, J. Dennis Hynes

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No abstract provided.

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A Mirror For The Magistrate, Paul Campos Jan 1992

A Mirror For The Magistrate, Paul Campos

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No abstract provided.

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Use Of A Commercially Available Flight Simulator During Aircrew Performance Testing, S. A. Shappell, B. J. Bartosh Nov 1991

Use Of A Commercially Available Flight Simulator During Aircrew Performance Testing, S. A. Shappell, B. J. Bartosh

Publications

Investigations of aircrew sustained operations (SUSOPS) have been criticized for employing tasks with no apparent external validity. Because measures obtained directly from aviators flying high-performance aircraft are difficult to obtain, a laboratory compromise is needed. High-fidelity flight simulators used for aircrew training offer the most realistic simulation, but their availability is limited. Personal computer-based flight simulators may provide adequate simulation in, the laboratory at a reasonable cost. This report describes a representative research protocol using a commercially available flight simulator during a simulated aircrew SUSOP.

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Gravity Wave-Driven Fluctuations In Oh Nightglow From An Extended, Dissipative Emission Region, G. Schubert, R. L. Walterscheid, Michael P. Hickey Ph.D. Aug 1991

Gravity Wave-Driven Fluctuations In Oh Nightglow From An Extended, Dissipative Emission Region, G. Schubert, R. L. Walterscheid, Michael P. Hickey Ph.D.

Publications

The theory of gravity wave-driven fluctuations in the OH nightglow from an extended source region is generalized to account for effects of eddy kinematic viscosity ν and eddy thermal diffusivity κ. In the nondiffusive case, the amplitudes and phases of vertically integrated normalized intensity 〈δI〉/〈Ī〉 and temperature 〈δTI〉/〈ĪI〉perturbations and vertically integrated Krassovsky's ratio 〈η〉 as functions of period are influenced by the upper limit of vertical integration of the extended source, especially at long periods when vertical wavelengths λᵥ are small. The effects, which include oscillations in 〈δT〉/〈Ī〉 , and 〈η〉, particularly at long …

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Bremsstrahlung And Energetic Electrons In Supernovae, Donald D. Clayton, Lih-Sin The Jul 1991

Bremsstrahlung And Energetic Electrons In Supernovae, Donald D. Clayton, Lih-Sin The

Publications

Explicit Monte Carlo calculations are presented for the rate of Compton scattering and for the spectrum recoil electrons per gram at discrete depths within models of supernovae, with emphasis on the bremsstrahlung emissivity within supernova interiors. The spectrum of the bremsstrahlung emissivity is calculated at E to the -1.3 for a wide range of supernova models. The radial and temporal dependence of that emissivity is calculated for two models of SN 1987A and for one model of a Type Ia and of a He core explosion model of a Type Ib. The spectrum emerging from the surface, which is then …

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Education Reform In The United States, 1991 July, J. Stanley Marshall (James Stanley) 1923-2014 Jul 1991

Education Reform In The United States, 1991 July, J. Stanley Marshall (James Stanley) 1923-2014

Publications

No abstract provided.

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A Search For The 478 Kev Line From The Decay Of Nucleosynthetic 7be, Michael J. Harris, Mark D. Leising, Gerald H. Share Jul 1991

A Search For The 478 Kev Line From The Decay Of Nucleosynthetic 7be, Michael J. Harris, Mark D. Leising, Gerald H. Share

Publications

Unstable Be-7 (half-life 53.28 days) is expected to be present in the ejecta of classical novae. If the frequency of novae in the central Galaxy is high enough, a nearly steady state abundance of Be-7 will be present there. Data accumulated during transits of the Galactic center across the aperture of the Solar Maximum Mission Gamma Ray Spectrometer have been searched for evidence of the 478 keV gamma-ray line resulting from Be-7 decay. A 3-sigma upper limit of 0.00016 gamma/sq cm s has been placed on the emission in this line from the central radian of the Galactic plane. Less …

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