Q & A with Ed Tech Leaders: Interview with Stavros Demetriadis

ERIC Educational Resources Information Center

Fulgham, Susan M.; Shaughnessy, Michael F.

2013-01-01

Stavros Demetriadis is currently an Assistant Professor with the Department of Informatics, Aristotle University of Thessaloniki (AUTh) in Greece. He also earned his Bachelor's degree in Physics and a Master Diploma in Electronic Physics from AUTh. He became interested in information and communications technologies when he was a high school…

The Accounting System and Resource Allocation Reform in a Public University

ERIC Educational Resources Information Center

Spathis, Charalambos; Ananiadis, John

2004-01-01

This paper studies the accounting system reform practised in Greek universities since January 2000, and more particularly at the Aristotle University of Thessaloniki (AUTH). It specifically examines the allocation of resources to faculties by university management based on certain criteria. The AUTH is the largest public university in Greece and…

Security issues of Internet-based biometric authentication systems: risks of Man-in-the-Middle and BioPhishing on the example of BioWebAuth

NASA Astrophysics Data System (ADS)

Zeitz, Christian; Scheidat, Tobias; Dittmann, Jana; Vielhauer, Claus; González Agulla, Elisardo; Otero Muras, Enrique; García Mateo, Carmen; Alba Castro, José L.

2008-02-01

Beside the optimization of biometric error rates the overall security system performance in respect to intentional security attacks plays an important role for biometric enabled authentication schemes. As traditionally most user authentication schemes are knowledge and/or possession based, firstly in this paper we present a methodology for a security analysis of Internet-based biometric authentication systems by enhancing known methodologies such as the CERT attack-taxonomy with a more detailed view on the OSI-Model. Secondly as proof of concept, the guidelines extracted from this methodology are strictly applied to an open source Internet-based biometric authentication system (BioWebAuth). As case studies, two exemplary attacks, based on the found security leaks, are investigated and the attack performance is presented to show that during the biometric authentication schemes beside biometric error performance tuning also security issues need to be addressed. Finally, some design recommendations are given in order to ensure a minimum security level.

KDB-1 LOW-LEVEL AIRCRAFT SAMPLING SYSTEM

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

Plagge, H.J.

1961-03-01

Use of KDB-1 drone aircraft appears feasible for the sampling of atomic debris at altitudes from 1000 to 40,000 feet. Further development would be necessary for precision control below 1000 feet. Further development and testing remains to be done on the sampling devices before the system can become operational. This system would be approximately one-seventh as expensive as present systems using manned aircraft. (auth)

Responding to Self-Selection Bias in Assessments of Academic Support Programs: A Motivational Control Study of Supplemental Instruction.

ERIC Educational Resources Information Center

Gattis, Kenneth W.

2002-01-01

Argues that a controlled study of Supplemental Instruction (SI) sessions in college chemistry showed that participants benefited from SI sessions to an extent that cannot be explained only by their higher levels of motivation. Reports that SI includes services such as one-on-one, drop-in, and group tutoring. (Contains 11 references.) (AUTH/NB)

ANALYTICAL METHOD FOR THE DETERMINATION OF BORON IN PURIFIED AND NATURAL WATERS (EXCLUDING SEA-WATER)

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

None

1964-01-01

An aliquot of the sample is evaporated to dryness with sodium hydroxide, and the boron is determined absorptiometrically on the residue as the curcumin complex. The method is applicable to water containing 0.065 to 0.05 ppm boron. The standard deviation obtained from 12 recoveries at the 0.25 mu g level was 0.014 mu g. (auth)

Radioimmunoassay for norethindrone. II. Plasma levels in hypertensive and normotensive oral contraceptive users. [/sup 3/H

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

Verma, P.; Curry, C.; Ahluwalia, B.

A sensitive radioimmunoassay for measurement of norethindrone (N) in blood plasma has been developed. The coefficient of variation within the assay and between assays was 7 and 13.5 percent respectively. The procedural blanks were negligible, and recovery was approximately 81.8 percent. Blood plasma levels of N in 20 normotensive and 6 hypertensive women who were ingesting oral contraceptives (OCs) were measured, and the results indicate that the subjects who became hypertensive while taking OCs had significantly higher levels of N compared with normotensive OC users (p less than 0.001). (auth)

REDUCTION OF DOSES IN DIAGNOSTIC USES OF RADIOISOTOPES

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

Hosain, F.

1960-03-01

> A moderately low-level counting technique with anticoincidence gas- flow counter was developed for use in metabolic and diagnostic tracer studies with radioisotopes. Several important experiments and results were reported which have been carried out with reduced doses of tracer isotopes. A reduction of the tracer dose of ahout 1/30th of the present conventional doses was achieved which helps to minimize the chances of radiation hazards. (auth)

Liquid level controller

DOEpatents

Mangus, J.D.; Redding, A.H.

1975-07-15

A system for maintaining two distinct sodium levels within the shell of a heat exchanger having a plurality of J-shaped modular tube bundles each enclosed in a separate shell which extends from a common base portion. A lower liquid level is maintained in the base portion and an upper liquid level is maintained in the shell enwrapping the long stem of the J-shaped tube bundles by utilizing standpipes with a notch at the lower end which decreases in open area the distance from the end of the stand pipe increases and a supply of inert gas fed at a constant rate to produce liquid levels, which will remain generally constant as the flow of liquid through the vessel varies. (auth)

THE POLARIZATION OF NEUTRONS FROM THE C$sup 12$(d,n) N$sup 13$ REACTION

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

Budzanowski, A.; Grotowski, K.; Niewodniczanski, H.

1959-01-01

The polarization of neutroni emitted irom the stripping reaction C/sup 12/(d,n)N/sup 13/ was investigated at the reaction angle theta /sub lab/ = 15 deg and deuteron energy E/sub d/ = I2.9 Mev. The polarization of neutrons connected with the 3.56 Mev energy- level in N/sup 13/ nucleus was found to be - (0.39 plus or minus 0.11). (auth)

78 FR 77144 - Announcement of Funding Awards for Fiscal Year 2013 for the Housing Choice Voucher Program

Federal Register 2010, 2011, 2012, 2013, 2014

2013-12-20

..., HOPEWELL, VA 23860. VA: VIRGINIA HSG REDEV AUTH.. 601 SOUTH 0 9,400 BELVIDERE ST, RICHMOND, VA 23220. VT...: HENDERSON HA 111 SOUTH ADAMS 0 17,800 ST, HENDERSON, KY 42420. KY: CYNTHIANA HA 149 FEDERAL ST, 0 4,200... 20895. MI: MICHIGAN STATE HSG DEV PO BOX 30044, 0 84,800 AUTH. LANSING, MI 48909. MN: VIRGINIA HRA PO...

Explosive laser

DOEpatents

Robinson, C.P.; Jensen, R.J.; Davis, W.C.; Sullivan, J.A.

1975-09-01

This patent relates to a laser system wherein reaction products from the detonation of a condensed explosive expand to form a gaseous medium with low translational temperature but high vibration population. Thermal pumping of the upper laser level and de-excitation of the lower laser level occur during the expansion, resulting in a population inversion. The expansion may be free or through a nozzle as in a gas-dynamic configuration. In one preferred embodiment, the explosive is such that its reaction products are CO$sub 2$ and other species that are beneficial or at least benign to CO$sub 2$ lasing. (auth)

ABSORPTION OF I$sup 131$ BY THYROID GLAND IN ATHLETES DURING PHYSICAL EXERTION

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

Khorol, I.S.

Radioiodine absorption by the thyroid gland after prolonged physical exercise (3000 m race) was studied in 16 athletes, aged 20 to 24 years. Two hours after administration of the isotope the level of its accumulation in the gland was halved. In 24 and 72 hours the content of radioiodine in the gland was higher than in experimental conditions without physical exercise. The phenomenon described evidently reflects the normal reaction of the thyroid gland of athletes to habitual physical exercise. (auth)

Comparison of human chorionic somatomammotropin (HCS) standards for radioimmunoassay

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

Cocola, F.; Genazzani, A.R.; Neri, P.

1973-01-01

A comparison was made between four commercially available HCS standards for radioimmunoassay, an interim standard from the Division of Biological Standards of the Medical Research Council. and a new preparation from our laboratories. Many differences are found between the various HCS preparations tested, and this may be one reason for the discrepancies found in absolute HCS plasma levels reported by different authors. The new Sclavo preparation seems to be the best, and its use is proposed as a new standard for radioimmunoassay. (auth)

Hyperkalemia complicating splenic irradiation of chronic lymphocytic leukemia

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

Kurlander, R.; Stein, R.S.; Roth, D.

1975-09-01

Hyperkalemia is an infrequent complication of the therapy of malignant disease. In previously reported cases, hyperkalemia following the institution of chemotherapy has been associated with acute renal failure. In this report, we present a patient with chronic lymphocytic leukemia who developed hyperkalemia following splenic irradiation. Necrosis of tumor cells, either as direct or an abscopal effect appears to be implicated as a cause of hyperkalemia. It seems appropriate to monitor potassium levels when therapy of a responsive tumor is instituted. (auth)

Detection of hepatitis A viral antigen by radioimmunoassay

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

Hollinger, F.B.; Bradley, D.W.; Maynard, J.E.

1975-11-01

With coded samples, the effectiveness and specificity of a micro-SPIRA procedure for rapidly and quantitatively detecting type A hepatitis-associated antigen in large numbers of specimens from infected liver, stool, or serum has been demonstrated. Samples which were judged to be negative by IEM were found to contain significant levels of HAV antigen by this immunoradiometric technique. The detection of significant levels of HAV antigen in infected chimpanzees supports epidemiologic evidence of viremia during the acute stage of the disease. The results of this study suggest that the diagnosis of type A hepatitis by a convention serologic procedure may now bemore » at hand. (auth)« less

SYSTEMATIZATION OF MASS LEVELS OF PARTICLES AND RESONANCES ON HEURISTIC BASIS

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

Takabayasi, T.

1963-12-16

Once more a scheme of simple mass rules and formulas for particles and resonant levels is investigated and organized, based on some general hypotheses. The essential ingredients in the scheme are, on one hand, the equalinterval rule governing the isosinglet meson series, associated with particularly simple mass ratio between the 2/sup ++/ level f and 0/sup ++/ level ABC, and on the other a new basic mass formula that unifies some of the meson and baryon levels. The whole baryon levels are arranged in a table analogous to the periodic table, and then correspondences between different series and equivalence betweenmore » spin and hypercharge, when properly applied, just fix the whole baryon mass spectrum in good agreement with observations. Connections with the scheme of mass formulas formerly given are also shown. (auth)« less

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

Chakravarti, D.; Held, E.E.

Radiocesium and stable potassium levels were determined in samples of muscle tissue of Birgus latro, the coconut crab, collected at Rongelap Atoll, Marshall Islands, during March and August 1958 and March 1959, and at Utirik Atoll in March 1959. Levels of cesium-137 ranged betwoen 731 d/m/g dry weight at Kabelle Island, Rongelap Atoll, and 28 d/m/g dry weight at Utirik Island, Utirik Atoll. The average potassium value for all samples was 13.05 mg/g dry weight with a standard deviation of 3.66. No significant correlation between cesium-l37 and potassium levels was found. There wse no significant difference in the average levelsmore » of cesium-137 in crabs collected at different times at the same island. (auth)« less

Ionosphere total electron content and its horizontal gradients, measured on the basis of satellite signal recordings at scattered points

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

Misyura, V.A.; Podnos, V.A.; Kapanin, I.I.

1973-01-01

Translated from Kosm. Issled.; 11: No. 4, 581-585(1973). The integrated electron content of the ionosphere up to the level of the recording satellite, and the horizontal gradients of the integrated electron content (total, latitudinal, and longitudinal components), was obtained at scattered observation points located at medium and high latitudes, on the basis of recordings made of Doppler and Faraday effects on coherent signals from the satellites Explorer-22, Explorer-27, Interkosmos-2, Kosmos321, Kosmos-356, and Kosmos-381. (auth)

INFLUENCE OF TOTAL BODY X-IRRADIATION ON THE LEVELS OF CREATINE PHOSPHATE, INORGANIC PHOSPHORUS AND ATP IN MUSCLE AND ON THE LEVELS OF CREATINE, CREATININE, N'-METHYL-NICOTINAMIDE AND NITROGEN IN URINE

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

Kumta, U.S.; Gurnani, S.U.; Sahasrabudhe, M.B.

1957-09-01

The influence of total-body irradiation on the levels of creatine phosphate (CP), adenosine triphosphate (ATP) and inorganic phosphorus (IP) in muscle has been investigated in rats. CP and ATP levels decrease by about 33% while those of 1P increase 4 times in irradiated rats. Studies on the influence of irradiation on the excretion of creatine, creatinine, and N'-methyl- nicotinamide in urine show that the excretion of creatine and N'-methyl- nlcotinamide is increased two-fold while that of creatinine is increased by 160%. It is suggested that the low levels of creatine phosphate are probably due to an impairment in the phosphorylationmore » of creatine or due to an adaptive breakdown of creatine phosphate leading to increased excretion of creatine and creatinine. (auth)« less

Globus Identity, Access, and Data Management: Platform Services for Collaborative Science

NASA Astrophysics Data System (ADS)

Ananthakrishnan, R.; Foster, I.; Wagner, R.

2016-12-01

Globus is software-as-a-service for research data management, developed at, and operated by, the University of Chicago. Globus, accessible at www.globus.org, provides high speed, secure file transfer; file sharing directly from existing storage systems; and data publication to institutional repositories. 40,000 registered users have used Globus to transfer tens of billions of files totaling hundreds of petabytes between more than 10,000 storage systems within campuses and national laboratories in the US and internationally. Web, command line, and REST interfaces support both interactive use and integration into applications and infrastructures. An important component of the Globus system is its foundational identity and access management (IAM) platform service, Globus Auth. Both Globus research data management and other applications use Globus Auth for brokering authentication and authorization interactions between end-users, identity providers, resource servers (services), and a range of clients, including web, mobile, and desktop applications, and other services. Compliant with important standards such as OAuth, OpenID, and SAML, Globus Auth provides mechanisms required for an extensible, integrated ecosystem of services and clients for the research and education community. It underpins projects such as the US National Science Foundation's XSEDE system, NCAR's Research Data Archive, and the DOE Systems Biology Knowledge Base. Current work is extending Globus services to be compliant with FEDRAMP standards for security assessment, authorization, and monitoring for cloud services. We will present Globus IAM solutions and give examples of Globus use in various projects for federated access to resources. We will also describe how Globus Auth and Globus research data management capabilities enable rapid development and low-cost operations of secure data sharing platforms that leverage Globus services and integrate them with local policy and security.

Occurrence of $sup 137$Cs in the biosphere evaluated with environmental and metabolic studies

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

Haesaenen, E.

This work forms a part of the fall-out studies carried out in the Department of Radiochemistry, University of Helsinki. Its main emphasis has been on the $gamma$-spectrometric determination of the $sup 137$Cs-levels and changes herein in different environmental samples and in man after the second nuclear testing period in 1961--1962. Special attention has been paid to the aquatic foodchains of $sup 137$Cs, to the foodchain reindeer-lichen-man, and to the biological half-life of $sup 137$Cs in man and in certain fish species. (auth)

POLARIZATION OF NEUTRONS BY THE STRIPPING REACTION C$sup 12$(d,n)N$sup 1$$sup 3$ (in French)

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

Budzanowski, A.; Grotowski, K.; Niewodniczanski, H.

1960-05-01

The polarization of neutrcns emitted from the stripping reaction C/sup 12/(d,n)N/sup 13/ hns been investigated at the reaction angle was / sub lab/ = 15 tained and deuteron energy E/sub d/ = 12.9 Mev. The polarization of neutrons connected with the 3.56 Mev energy level in N/sup 13/ nucleus was found to be --(0.39 combination rat 0.11). Also some general remarks concerning the preliminary results of the polarization of neutrons at the reaction angles 30 tained , 45 tained , and 60 tained are given. (auth)

STUDIES ON PLANT ACCUMULATION OF FISSION PRODUCTS UNDER SWEDISH CONDITIONS. III. ACCUMULATION OF Sr-89 IN THE AERIAL PARTS OF DIFFERENT WEED SPECIES AT VARYING Ca-LEVEL IN SOIL

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

Fredriksson, L.; Eriksson, B.; Eriksson, A.

1961-03-01

The influence of liming on the accurnulation of Sr/sup 89/ in the aerial parte of a number of weed species, grown on a natnralla calcium deficient soil in pot experiments, was studied. Liming decreased the accumulation of Sr/sup 89/ in all of the weed species used. At one and the same Ca content in soil great differences were found in Sr/sup 89/ activity in the dry matter of the different weed species. (auth)

Mathematics Anxiety and Preservice Elementary Teachers' Confidence to Teach Mathematics and Science

ERIC Educational Resources Information Center

Bursal, Murat; Paznokas, Lynda

2006-01-01

Sixty-five preservice elementary teachers' math anxiety levels and confidence levels to teach elementary mathematics and science were measured. The confidence scores of subjects in different math anxiety groups were compared and the relationships between their math anxiety levels and confidence levels to teach mathematics and science were…

On the Paramagnetic Inelastic Scattering of Neutrons due to Ions in the Anisotropic Crystalline Field

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

Yamada, Yasusada

1960-03-15

The paramagnetic inelastic scattering of neutrons due to ions of3d transition elements in the anisotropic crystalline field was considered. When the orbital momentum of the paramagnetic tons is not quenched, the spin states are no longer degenerate but split into discrete levels. The transition between these levels can occur by mugnetic dipole interaction of ions with neutrons. In the special case of FeCl/sub 2/, an antiferromagnetic crystal whose Neel temperature is 24 deg K, the calculation of the forward scuttering cross-sections of neutrons at various temperatures and wave lengths was carried out which showed that it is possible, under ordinarymore » conditions, to observe the inelastically scattered neutrons and hence to obtain information about the energy level scheme of the atomic spin in the cry stal. (auth)« less

OPERATIONAL CHARACTERISTICS OF THE ARMOUR FISSION GAS GAMMA FACILITY

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

Terrell, C.W.; McElroy, W.N.

1958-10-31

As the reactor power level is changed frequently, the radiation levels in the gamma facility fluctuate. Data are presented to show the power dependency of the gamma dose rate and the manner of growth and decay. Additional data show the dependercy of the equilibrium gamma activity on the foel temperature and total system pressure. The final phase of the work is directed toward determining an average gamma energy by attenuation measurements with various thicknesses of several materials. The neutrou flux associated with the gas phase activity is determined by foil measurement. From the measurements of dose rate and average gammamore » energy, calculations to determine the number of curies of gas phase decay gamma activity per watt of reactor power are presented. (auth)« less

COSMIC RADIATION AND TUBERCULOSIS. V. INFLUENCE OF COSMIC RADIATION ON TUBERCULOSIS AT HIGH ALTITUDE (2,300m) AND AT SEA-LEVEL

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

Ong, S.G.

1964-02-01

Tuberculous mice exposed to cosmic radiation at 2,300 m showed a significantly greater mean survival time and a significantly greater number of survivors than tuberculous mice exposed to cosmic radiation at sea-level. At high altitude as well as at sea-level the female showed a significantly greater mean survival than the male. The mean survival time of the male or female at high altitude is significantly greater than that of the male or female at sealevel. At high altitude there is no significant difference in montality between male and female. At sea-level the female showed a significantly greater number of survivorsmore » than the male. The pooled data showed a significantly greater number of survivors of the female. At high altitude as well as at sea- level the lung lesions diminished, whereas the spleen lesions increased significantly with increasing survival time. (auth)« less

DELETERIOUS EFFECTS OF HIGH FAT DIETS ON SURVIVAL TIME OF X-IRRADIATED MICE

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

Ershoff, B.H.

1961-02-01

The effects of multiple sublethal doses of total body x-irradiation were determined on survival time of male mice fed either a purified fat-free ration or a similar diet supplemented with 2, 10, 20, or 30% cottonseed oil, marganine fat, or butter fat. The effects obtnined were dependent on the amount and source of dietary fat. At levels of 2 or 10% of the diet, cottonseed oil and margarine fat increased survival time over that on the fat-free ration. When these fats were fed at higher levels (i.e., 20 or 30% of the diet), however, survival time was decreased below thatmore » obtained at the lower levels of supplementation. In contrast to the results obtained with the cottonseed oil or margarine fat supplements, butter fat at levels of 2 or 10% of the diet did not prolong survival over that on the fat-free ration; nor did it decrease survival time when fed at higher levels in the diet. (auth)« less

Confidence level estimation in multi-target classification problems

NASA Astrophysics Data System (ADS)

Chang, Shi; Isaacs, Jason; Fu, Bo; Shin, Jaejeong; Zhu, Pingping; Ferrari, Silvia

2018-04-01

This paper presents an approach for estimating the confidence level in automatic multi-target classification performed by an imaging sensor on an unmanned vehicle. An automatic target recognition algorithm comprised of a deep convolutional neural network in series with a support vector machine classifier detects and classifies targets based on the image matrix. The joint posterior probability mass function of target class, features, and classification estimates is learned from labeled data, and recursively updated as additional images become available. Based on the learned joint probability mass function, the approach presented in this paper predicts the expected confidence level of future target classifications, prior to obtaining new images. The proposed approach is tested with a set of simulated sonar image data. The numerical results show that the estimated confidence level provides a close approximation to the actual confidence level value determined a posteriori, i.e. after the new image is obtained by the on-board sensor. Therefore, the expected confidence level function presented in this paper can be used to adaptively plan the path of the unmanned vehicle so as to optimize the expected confidence levels and ensure that all targets are classified with satisfactory confidence after the path is executed.

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

none,

Results of a survey covering the safety, adequacy, and reliability of certain design and construction features pertaining to the NS Savannah nuclear power plant and related systems are presented. (auth)

Design criteria: data acquisition system for waste tank liquid level gauges and SX Tank Farm thermocouples

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

Martin, G.E.; Oliver, R.G.

1972-02-17

This design criteria revision (revision 2) will cancel revision 1 and will provide complete functional supervision of the liquid level gauges. A new.counter and an electronic supervisory circuit will be installed in each waste tank liquid level gauge. The electronic supervisory circuit will monitor (via the new counter and a signal from the gauge electronics) cycling of the gauge on a one minute time cycle. This supervisory circuit will fulfill the intent of revision 1 (monitor AC power to the gauge) and, in addition, will supervise all other aspects of the gauge including: the electronics, the drive motor, all sprocketsmore » and chain linkages, and the counter. If a gauge failure should occur, this circuit will remove the +12 volts excitation from the data acquisition system inferface board; and the computer will be programmed to recognize this condition as a gauge failure. (auth)« less

VENTURE: a code block for solving multigroup neutronics problems applying the finite-difference diffusion-theory approximation to neutron transport

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

Vondy, D.R.; Fowler, T.B.; Cunningham, G.W.

1975-10-01

The computer code block VENTURE, designed to solve multigroup neutronics problems with application of the finite-difference diffusion-theory approximation to neutron transport (or alternatively simple P$sub 1$) in up to three- dimensional geometry is described. A variety of types of problems may be solved: the usual eigenvalue problem, a direct criticality search on the buckling, on a reciprocal velocity absorber (prompt mode), or on nuclide concentrations, or an indirect criticality search on nuclide concentrations, or on dimensions. First- order perturbation analysis capability is available at the macroscopic cross section level. (auth)

Patient confidence regarding secondary lifestyle modification and knowledge of ‘heart attack’ symptoms following percutaneous revascularisation in Japan: a cross-sectional study

PubMed Central

Kitakata, Hiroki; Kohno, Takashi; Kohsaka, Shun; Fujino, Junko; Nakano, Naomi; Fukuoka, Ryoma; Yuasa, Shinsuke; Maekawa, Yuichiro; Fukuda, Keiichi

2018-01-01

Objective To assess patient perspectives on secondary lifestyle modification and knowledge of ‘heart attack’ after percutaneous coronary intervention (PCI) for coronary artery disease (CAD). Design Observational cross-sectional study. Setting A single university-based hospital centre in Japan. Participants In total, 236 consecutive patients with CAD who underwent PCI completed a questionnaire (age, 67.4±10.1 years; women, 14.8%; elective PCI, 75.4%). The survey questionnaire included questions related to confidence levels about (1) lifestyle modification at the time of discharge and (2) appropriate recognition of heart attack symptoms and reactions to these symptoms on a four-point Likert scale (1=not confident to 4=completely confident). Primary outcome measure The primary outcome assessed was the patients’ confidence level regarding lifestyle modification and the recognition of heart attack symptoms. Results Overall, patients had a high level of confidence (confident or completely confident,>75%) about smoking cessation, alcohol restriction and medication adherence. However, they had a relatively low level of confidence (<50%) about the maintenance of blood pressure control, healthy diet, body weight and routine exercise (≥3 times/week). After adjustment, male sex (OR 3.61, 95% CI 1.11 to 11.8) and lower educational level (OR 3.25; 95% CI 1.70 to 6.23) were identified as factors associated with lower confidence levels. In terms of confidence in the recognition of heart attack, almost all respondents answered ‘yes’ to the item ‘I should go to the hospital as soon as possible when I have a heart attack’; however, only 28% of the responders were confident in their ability to distinguish between heart attack symptoms and other conditions. Conclusions There were substantial disparities in the confidence levels associated with lifestyle modification and recognition/response to heart attack. These gaps need to be studied further and disseminated to improve cardiovascular care. PMID:29549203

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

Hznnera, K.; Hetzler, F.; Hyden, L.

From international nuclear industries fair; Basel, Switzerland (16 Oct 1972). Some features of ASEA-ATOM's BWR fuel design and fabrication processes are given. The in pile fuel performance experience to date is reviewed. (auth)

Evidence for a confidence-accuracy relationship in memory for same- and cross-race faces.

PubMed

Nguyen, Thao B; Pezdek, Kathy; Wixted, John T

2017-12-01

Discrimination accuracy is usually higher for same- than for cross-race faces, a phenomenon known as the cross-race effect (CRE). According to prior research, the CRE occurs because memories for same- and cross-race faces rely on qualitatively different processes. However, according to a continuous dual-process model of recognition memory, memories that rely on qualitatively different processes do not differ in recognition accuracy when confidence is equated. Thus, although there are differences in overall same- and cross-race discrimination accuracy, confidence-specific accuracy (i.e., recognition accuracy at a particular level of confidence) may not differ. We analysed datasets from four recognition memory studies on same- and cross-race faces to test this hypothesis. Confidence ratings reliably predicted recognition accuracy when performance was above chance levels (Experiments 1, 2, and 3) but not when performance was at chance levels (Experiment 4). Furthermore, at each level of confidence, confidence-specific accuracy for same- and cross-race faces did not significantly differ when overall performance was above chance levels (Experiments 1, 2, and 3) but significantly differed when overall performance was at chance levels (Experiment 4). Thus, under certain conditions, high-confidence same-race and cross-race identifications may be equally reliable.

Parents' confidence in recommended childhood vaccinations: Extending the assessment, expanding the context

PubMed Central

Nowak, Glen J.; Cacciatore, Michael A.

2017-01-01

ABSTRACT There has been significant and growing interest in vaccine hesitancy and confidence in the United States as well as across the globe. While studies have used confidence measures, few studies have provided in-depth assessments and no studies have assessed parents' confidence in vaccines in relationship to other frequently recommended health-related products for young children. This study used a nationally representative sample of 1000 US parents to identify confidence levels for recommended vaccinations, antibiotics, over-the-counter (OTC) medicines, and vitamins for children. The analyses examined associations between confidence ratings, vaccination behaviors and intentions, and trust in healthcare provider, along with associations between confidence ratings and use of the other health-related products. Parents' confidence in vaccines was relatively high and high relative to antibiotics, OTC medicines and vitamins. For all 4 health-related products examined, past product experience and knowledge of bad or adverse outcomes negatively impacted parents' confidence levels. Confidence levels were associated with both trust in advice from their child's healthcare provider and acceptance of healthcare provider recommendations. Parents in some groups, such as those with lower income and education levels, were more likely to have less confidence not just in vaccines, but also in antibiotics and OTC medicines for children. Overall, the findings extend understanding of vaccine confidence, including by placing it into a broader context. PMID:27682979

ZEEMAN INVESTIGATIONS OF CURIUM-242

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

Hubbs, J.C.; Marrus, R.; Winocur, J.O.

The atomic-beam magnetic-resonance method has been used to investigate 163-day Cm/sup 242/. The spin of this even-even nuclide is found to be zero. Four low-lying electronlc energy levels are found and the Lande gfactors are measured to be g/sub J2/ = 2.561 plus or minus 0.003, g/sub J3/ 2.000 plus or minus 0.003, g/sub J4/ = 1.776 plus or minus 0.002, and g/sub J5/ = 1.671 plus or minus 0.003. No direct measurement can be made of the angular momenta of these levels, but other considerations contained in the text make highly probable the J values indicated in subscripts andmore » arising from the electronic configuration (5f)/sup 7/ (6d)/sup 1 (7s)/sup 2/. (auth)« less

Liquid-level sensing device

DOEpatents

Goldfuss, G.T.

1975-09-16

This invention relates to a device for sensing the level of a liquid while preventing the deposition and accumulation of materials on the exterior surfaces thereof. Two dissimilar metal wires are enclosed within an electrical insulating material, the wires being joined together at one end to form a thermocouple junction outside the insulating material. Heating means is disposed within the electrical insulating material and maintains the device at a temperature substantially greater than that of the environment surrounding the device, the heating means being electrically insulated from the two dissimilar thermocouple wires. In addition, a metal sheath surrounds and contacts both the electrical insulating material and the thermocouple junction. Electrical connections are provided for connecting the heating means with a power source and for connecting the thermocouple wires with a device for sensing the electrical potential across the thermocouple junction. (auth)

Contrasting Academic Behavioural Confidence in Mexican and European Psychology Students

ERIC Educational Resources Information Center

Ochoa, Alma Rosa Aguila; Sander, Paul

2012-01-01

Introduction: Research with the Academic Behavioural Confidence scale using European students has shown that students have high levels of confidence in their academic abilities. It is generally accepted that people in more collectivist cultures have more realistic confidence levels in contrast to the overconfidence seen in individualistic European…

Parent's confidence as a caregiver.

PubMed

Raines, Deborah A; Brustad, Judith

2012-06-01

The purpose of this study was to describe the parent's self-reported confidence as a caregiver. The specific research questions were as follows: • What is the parent's perceived level of confidence when performing infant caregiving activities in the neonatal intensive care unit (NICU)? • What is the parent's projected level of confidence about performing infant caregiving activities on the first day at home? Participants were parents of infants with an anticipated discharge date within 5 days. Inclusion criteria were as follows: parent at least 18 years of age, infant's discharge destination is home with the parent, parent will have primary responsibility for the infant after discharge, and the infant's length of stay in the NICU was a minimum of 10 days. Descriptive, survey research. Participants perceived themselves to be confident in all but 2 caregiving activities when caring for their infants in the NICU, but parents projected a change in their level of confidence in their ability to independently complete infant care activities at home. When comparing the self-reported level of confidence in the NICU and the projected level of confidence at home, the levels of confidence decreased for 5 items, increased for 8 items, and remained unchanged for 2 items. All of the items with a decrease in score were the items with the lowest score when performed in the NICU. All of these low-scoring items are caregiving activities that are unique to the post-NICU status of the infant. Interestingly, the parent's projected level of confidence increased for the 8 items focused on handling and interacting with the infant. The findings of this research provide evidence that nurses may need to rethink when parents become active participants in their infant's medical-based caregiving activities.

Patient confidence regarding secondary lifestyle modification and knowledge of 'heart attack' symptoms following percutaneous revascularisation in Japan: a cross-sectional study.

PubMed

Kitakata, Hiroki; Kohno, Takashi; Kohsaka, Shun; Fujino, Junko; Nakano, Naomi; Fukuoka, Ryoma; Yuasa, Shinsuke; Maekawa, Yuichiro; Fukuda, Keiichi

2018-03-16

To assess patient perspectives on secondary lifestyle modification and knowledge of 'heart attack' after percutaneous coronary intervention (PCI) for coronary artery disease (CAD). Observational cross-sectional study. A single university-based hospital centre in Japan. In total, 236 consecutive patients with CAD who underwent PCI completed a questionnaire (age, 67.4±10.1 years; women, 14.8%; elective PCI, 75.4%). The survey questionnaire included questions related to confidence levels about (1) lifestyle modification at the time of discharge and (2) appropriate recognition of heart attack symptoms and reactions to these symptoms on a four-point Likert scale (1=not confident to 4=completely confident). The primary outcome assessed was the patients' confidence level regarding lifestyle modification and the recognition of heart attack symptoms. Overall, patients had a high level of confidence (confident or completely confident,>75%) about smoking cessation, alcohol restriction and medication adherence. However, they had a relatively low level of confidence (<50%) about the maintenance of blood pressure control, healthy diet, body weight and routine exercise (≥3 times/week). After adjustment, male sex (OR 3.61, 95% CI 1.11 to 11.8) and lower educational level (OR 3.25; 95% CI 1.70 to 6.23) were identified as factors associated with lower confidence levels. In terms of confidence in the recognition of heart attack, almost all respondents answered 'yes' to the item 'I should go to the hospital as soon as possible when I have a heart attack'; however, only 28% of the responders were confident in their ability to distinguish between heart attack symptoms and other conditions. There were substantial disparities in the confidence levels associated with lifestyle modification and recognition/response to heart attack. These gaps need to be studied further and disseminated to improve cardiovascular care. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

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

None

Twenty six papers are presented from the four sessions of the meeting, dealing with the following subject fields: light mechanical systems and equipment; heavy dynamic mechanical systems and equipment; sturctures; and, relevant experience from various fields. (auth)

A table of semiempirical gf values. Part 2. Wavelengths: 272. 3395 nm to 599. 3892 nm

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

Kurucz, R.L.; Peytremann, E.

1975-02-14

The gf values for 265,587 atomic lines selectedfrom the line data used to calculate line blanketed model atmospheres are tabulated. These data are especially useful for line identification and spectral synthesis in solar and stellar spectra. The gf values are calculated semiempirically by using scaled Thomas--Fermi--Dirac radial wave functions and eigenvectors found through least-squares fits to observed energy levels. Included in the calculation are the first five or six stages of ionization for sequences up through nickel. Published gf values are included for elements heavier than nickel. The tabulation is restricted to lines with wavelengths less than 10 micrometers. (auth)

SPACE GEOMAGNETISM, RADIATION BELTS, AND AURORAL ZONES

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

Vestine, E.H.

1962-07-01

The nature of the geomagnetic field and a few variations from ground level out to about 10 earth radii is discussed. Regions of trapped radiation are noted. The unshielded dosages during a great solar event on a few days per decade exceed limits of human safety. Modest shielding of somewhat less than 1 gm/sq cm will not remove the hazards. The chance is probably only one in several thousand that this will not suffice to preserve life on any given day. Transient accelerations of trapped particles result in atmospheric effects such as the aurora, and the polar electrojets, but themore » cause of these accelerative actions is quite obscure. (auth)« less

ANALYTICAL METHOD FOR THE DETERMINATION OF BORON IN URANYL NITRATE SOLUTIONS

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

None

1962-01-01

A method was developed for the determination of boron in uranyl nitrate solutions. The boron is separated from uranium and other impurities by distillation of methyl borate. It is determined absorptiometrically by means of curcumin in the presence of orthochlorophenol, perchloric acid, and acetic anhydride. The limit of detection is judged to be not greater than 0.05 mu g, but is dependent on the purity of the reagents used. The coefficient of variation on 210 results at the 0.2 mu g boron level was 26% with a bias of -25%. The method may be applied to depleted uranyl nitrate solutionsmore » and uranium slag recovery liquors. (auth)« less

CARDIO-VASCULAR MALFORMATIONS PROVOKED IN THE CHICKEN AFTER IRRADIATION WITH X RAYS OF THE EMBRYONIC REGION LOCATED BEHIND THE HEART RUDIMENT (in French)

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

Le Douarin, N.

BS>The x-ray destruction of the embryonic region intended to form the neck modifies the topographic ratios of the cardiac rudiment, causing a constraint in the normal pattem of morphogenetic movements. Malformations of the heart and the arterial trunks result. The cardio-vascular malformations are, moreover, more frequent and significant when the anterior radiation level is nearer the heart and when the region destroyed is wider. The vascular anomalies concern generally the brachiocephalic trunks and less frequently the aortal bend. The heart malformations affect the rotation of the arterial bud and the achievement of cardiac partitioning. (tr-auth)

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

Hughes, A.C.; Sanders, C.; Tennet, M.G.

""Jason"" reactors are described in which the power level is increased from the original 10 kw to 100 kw. The problems encountered in making this ten- fold increase in power arise not only in connection with the removal of the extra heat produced but also with a number of effects which, although negligible at 10 kw, become significant at 100 kw. These effects are examined and the steps taken, where necessary, to prevent them from becoming troublesome are described. Attention is paid to the safety of the system. A program of work carried out on the Langley ""Jason,"" which throwsmore » considerable light on the behavior of a 100 kw reactor under severe fault conditions, is described here for the first time. (auth)« less

Prospective Teachers' Problem Solving Skills and Self-Confidence Levels

ERIC Educational Resources Information Center

Gursen Otacioglu, Sena

2008-01-01

The basic objective of the research is to determine whether the education that prospective teachers in different fields receive is related to their levels of problem solving skills and self-confidence. Within the mentioned framework, the prospective teachers' problem solving and self-confidence levels have been examined under several variables.…

PRELIMINARY STUDY OF THE PRESSURE TRANSDUCER PROJECT

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

Eldridge, A.J.

1956-08-01

A feasibility study is presented of the application of several commercially available pressure transducers for incorporation in a dynamic baro- switch tester or for use in a baro-switch application. (auth)

RANDOM MATRIX DIAGONALIZATION--A COMPUTER PROGRAM

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

Fuchel, K.; Greibach, R.J.; Porter, C.E.

A computer prograra is described which generates random matrices, diagonalizes them and sorts appropriately the resulting eigenvalues and eigenvector components. FAP and FORTRAN listings for the IBM 7090 computer are included. (auth)

Effect of CALIPSO Cloud Aerosol Discrimination (CAD) Confidence Levels on Observations of Aerosol Properties near Clouds

NASA Technical Reports Server (NTRS)

Yang, Weidong; Marshak, Alexander; Varnai, Tamas; Liu, Zhaoyan

2012-01-01

CALIPSO aerosol backscatter enhancement in the transition zone between clouds and clear sky areas is revisited with particular attention to effects of data selection based on the confidence level of cloud-aerosol discrimination (CAD). The results show that backscatter behavior in the transition zone strongly depends on the CAD confidence level. Higher confidence level data has a flatter backscatter far away from clouds and a much sharper increase near clouds (within 4 km), thus a smaller transition zone. For high confidence level data it is shown that the overall backscatter enhancement is more pronounced for small clear-air segments and horizontally larger clouds. The results suggest that data selection based on CAD reduces the possible effects of cloud contamination when studying aerosol properties in the vicinity of clouds.

Sandia Laboratories technical capabilities: engineering analysis

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

Lundergan, C. D.

1975-12-01

This report characterizes the engineering analysis capabilities at Sandia Laboratories. Selected applications of these capabilities are presented to illustrate the extent to which they can be applied in research and development programs. (auth)

The Effect of a Surgical Skills Course on Confidence Levels of Rural General Practitioners: An Observational Study.

PubMed

Byrd, Pippa; Ward, Olga; Hamdorf, Jeffrey

2016-10-01

Objective  To investigate the effect of a short surgical skills course on general practitioners' confidence levels to perform procedural skills. Design  Prospective observational study. Setting  The Clinical Evaluation and Training Centre, a practical skills-based educational facility, at The University of Western Australia. Participants  Medical practitioners who participated in these courses. Nurses, physiotherapists, and medical students were excluded. The response rate was 61% with 61 participants providing 788 responses for pre- and postcourse confidence levels regarding various surgical skills. Intervention  One- to two-day surgical skills courses consisting of presentations, demonstrations, and practical stations, facilitated by specialists. Main Outcome Measures  A two-page precourse and postcourse questionnaire was administered to medical practitioners on the day. Participants rated their confidence levels to perform skills addressed during the course on a 4-point Likert scale. Results  Of the 788 responses regarding confidence levels, 621 were rated as improved postcourse, 163 were rated as no change, and 4 were rated as lower postcourse. Seven of the courses showed a 25% median increase in confidence levels, and one course demonstrated a 50% median increase. All courses showed statistically significant results ( p  < 0.001). Conclusion  A short surgical skills course resulted in a statistically significant improvement in the confidence levels of rural general practitioners to perform these skills.

Correlating Student Knowledge and Confidence Using a Graded Knowledge Survey to Assess Student Learning in a General Microbiology Classroom †

PubMed Central

Favazzo, Lacey; Willford, John D.; Watson, Rachel M.

2014-01-01

Knowledge surveys are a type of confidence survey in which students rate their confidence in their ability to answer questions rather than answering the questions. These surveys have been discussed as a tool to evaluate student in-class or curriculum-wide learning. However, disagreement exists as to whether confidence is actually an accurate measure of knowledge. With the concomitant goals of assessing content-based learning objectives and addressing this disagreement, we present herein a pretest/posttest knowledge survey study that demonstrates a significant difference correctness on graded test questions at different levels of reported confidence in a multi-semester timeframe. Questions were organized into Bloom’s taxonomy, allowing for the data collected to further provide statistical analyses on strengths and deficits in various levels of Bloom’s reasoning with regard to mean correctness. Collectively, students showed increasing confidence and correctness in all levels of thought but struggled with synthesis-level questions. However, when students were only asked to rate confidence and not answer the accompanying test questions, they reported significantly higher confidence than the control group which was asked to do both. This indicates that when students do not attempt to answer questions, they have significantly greater confidence in their ability to answer those questions. Additionally, when students rate only confidence without answering the question, resolution across Bloom’s levels of reasoning is lost. Based upon our findings, knowledge surveys can be an effective tool for assessment of both breadth and depth of knowledge, but may require students to answer questions in addition to rating confidence to provide the most accurate data. PMID:25574291

Calculation of Confidence Intervals for the Maximum Magnitude of Earthquakes in Different Seismotectonic Zones of Iran

NASA Astrophysics Data System (ADS)

Salamat, Mona; Zare, Mehdi; Holschneider, Matthias; Zöller, Gert

2017-03-01

The problem of estimating the maximum possible earthquake magnitude m_max has attracted growing attention in recent years. Due to sparse data, the role of uncertainties becomes crucial. In this work, we determine the uncertainties related to the maximum magnitude in terms of confidence intervals. Using an earthquake catalog of Iran, m_max is estimated for different predefined levels of confidence in six seismotectonic zones. Assuming the doubly truncated Gutenberg-Richter distribution as a statistical model for earthquake magnitudes, confidence intervals for the maximum possible magnitude of earthquakes are calculated in each zone. While the lower limit of the confidence interval is the magnitude of the maximum observed event,the upper limit is calculated from the catalog and the statistical model. For this aim, we use the original catalog which no declustering methods applied on as well as a declustered version of the catalog. Based on the study by Holschneider et al. (Bull Seismol Soc Am 101(4):1649-1659, 2011), the confidence interval for m_max is frequently unbounded, especially if high levels of confidence are required. In this case, no information is gained from the data. Therefore, we elaborate for which settings finite confidence levels are obtained. In this work, Iran is divided into six seismotectonic zones, namely Alborz, Azerbaijan, Zagros, Makran, Kopet Dagh, Central Iran. Although calculations of the confidence interval in Central Iran and Zagros seismotectonic zones are relatively acceptable for meaningful levels of confidence, results in Kopet Dagh, Alborz, Azerbaijan and Makran are not that much promising. The results indicate that estimating m_max from an earthquake catalog for reasonable levels of confidence alone is almost impossible.

Sources of sport confidence, imagery type and performance among competitive athletes: the mediating role of sports confidence.

PubMed

Levy, A R; Perry, J; Nicholls, A R; Larkin, D; Davies, J

2015-01-01

This study explored the mediating role of sport confidence upon (1) sources of sport confidence-performance relationship and (2) imagery-performance relationship. Participants were 157 competitive athletes who completed state measures of confidence level/sources, imagery type and performance within one hour after competition. Among the current sample, confirmatory factor analysis revealed appropriate support for the nine-factor SSCQ and the five-factor SIQ. Mediational analysis revealed that sport confidence had a mediating influence upon the achievement source of confidence-performance relationship. In addition, both cognitive and motivational imagery types were found to be important sources of confidence, as sport confidence mediated imagery type- performance relationship. Findings indicated that athletes who construed confidence from their own achievements and report multiple images on a more frequent basis are likely to benefit from enhanced levels of state sport confidence and subsequent performance.

Joint Direct Attack Munition (JDAM)

DTIC Science & Technology

2015-12-01

February 19, 2015 and the O&S cost are based on an ICE dated August 28, 2014 Confidence Level Confidence Level of cost estimate for current APB: 50% A...mathematically derived confidence level was not computed for this Life-Cycle Cost Estimate (LCCE). This LCCE represents the expected value, taking into...consideration relevant risks, including ordinary levels of external and unforeseen events. It aims to provide sufficient resources to execute the

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

Dottori, H.A.; Fourcade, C.R.

The object Fourcade--Figueroa (F-- F) ( alpha /sub 50/ = 32/sub m/5; sigma /sub 50/ == and a corrected recession velocity of 830 km/s. The possibility is discussed that it is physically associated with the elliptic galaxy NOC 5128. (auth)

Black-hole model of galactic nuclei

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

Norman, C.A.; ter Haar, D.

1973-04-01

It is shown that the observed large infrared emission from some galactic nuclei finds a natural explanation, if one takes plasma turbulence into account in Lynden-Bell and Rees' blackhole model of galactic nuclei. (auth)

Work-Based Learning: Finding a New Niche.

ERIC Educational Resources Information Center

Johnston, George H.

2001-01-01

Describes how a new manufacturing technology program at one college, seeking to use work-based learning extensively, has addressed success factors identified in a national study of exemplary programs. (Contains 10 references.) (AUTH/NB)

Nonaqueous actinide hydride dissolution and production of actinide $beta$- diketonates

DOEpatents

Crisler, L.R.

1975-11-11

Actinide beta-diketonate complex molecular compounds are produced by reacting a beta-diketone compound with a hydride of the actinide material in a mixture of carbon tetrachloride and methanol. (auth)

ANP TURBOPROP STUDIES BIBLIOGRAPHY

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

Cope, A.D. comp.

1957-04-01

Documents, drawings, photographs, slides, and charts issued by ANPD and reports and drawings by AGT-FPLD, Lockheed, and Douglas Aircraft Company on ANP turboprop studies from April 8, 1955 to March 31, 1957 are listed. (auth)

Radiosensitivity of jute

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

Joshua, D.C.; Thakare, R.G.; Rao, N.S.

1972-11-01

The differential effects of fast and thermal neutrons and gamma rays on diploid ond autotetraploid of C. olitorius cv JRO 632 were studied. The frequency and spectrum of lethal chlorophyll mutations were studied in the diploid variety. (auth)

RADIOACTIVE STRONTIUM IN SOIL, CROPS, FOOD-STUFFS AND HUMAN BONES IN THE NETHERLANDS. PART 2

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

Barendsen, G.W.; Beusker, T.L.J.; Bleichrodt, J.F.

1959-12-01

Results are presented for 1958 and 1959 on Sr/sup 89/ and Sr/sup 90/ analyses on various biological materials. First Sr/sup 89/ and Sr/sup 90/ concentrations are given of soil, grass, and milk obtained from different localities, selected for high and respectively low calcium contents of the soils. Comparison with the results of 1957 shows a relativeiy small increase of Sr/sup 90/ in the soil, about 10%, but much larger increases up to 150% of Sr/sup 90/ concentrations per gram of calcium in milk. The December 1957 milk data reflect levels present in winter fodder while the May 1958 data reflectmore » levels occurring in the pastures. Samples of grass taken in May 1958 contained less Sr/sup 90/ per gram of calcium than grass taken in December 1957. (auth)« less

Preservice Educators' Confidence in Addressing Sexuality Education

ERIC Educational Resources Information Center

Wyatt, Tammy Jordan

2009-01-01

This study examined 328 preservice educators' level of confidence in addressing four sexuality education domains and 21 sexuality education topics. Significant differences in confidence levels across the four domains were found for gender, academic major, sexuality education philosophy, and sexuality education knowledge. Preservice educators…

Advanced Extremely High Frequency Satellite (AEHF)

DTIC Science & Technology

2015-12-01

control their tactical and strategic forces at all levels of conflict up to and including general nuclear war, and it supports the attainment of...10195.1 10622.2 Confidence Level Confidence Level of cost estimate for current APB: 50% The ICE) that supports the AEHF SV 1-4, like all life-cycle cost...mathematically the precise confidence levels associated with life-cycle cost estimates prepared for MDAPs. Based on the rigor in methods used in building

Wideband Global SATCOM (WGS)

DTIC Science & Technology

2015-12-01

system level testing. ​The WGS-6 financial data is not reported in this SAR because funding is provided by Australia in exchange for access to a...A 3831.3 3539.7 3539.7 3801.9 Confidence Level Confidence Level of cost estimate for current APB: 50% The ICE to support WGS Milestone C decision...to calculate mathematically the precise confidence levels associated with life-cycle cost estimates prepared for MDAPs. Based on the rigor in

Examination of the Relationship between TEOG Score Transition (from Basic to Secondary Education), Self-Confidence, Self-Efficacy and Motivation Level

ERIC Educational Resources Information Center

Usta, H. Gonca

2017-01-01

The relationship between individuals' academic success, motivation and self-confidence and self-efficacy levels cannot be ignored. The aim of this study is to develop and test a theoretical model considering the relationship between academic motivation, self-confidence and self-efficacy levels in transition from middle school to high school. For…

An Analysis of Training Effects on School Personnel's Knowledge, Attitudes, Comfort, and Confidence Levels toward Educating Students about HIV/AIDS in Pennsylvania

ERIC Educational Resources Information Center

Deutschlander, Sharon

2010-01-01

The purpose of this study was to determine the training effects on school personnel's knowledge, attitudes, comfort, and confidence levels toward educating students about HIV/AIDS in Pennsylvania. The following four research questions were explored: (a) What is the knowledge, attitudes, confidence, and comfort levels of school personnel regarding…

Nurse leader certification preparation: how are confidence levels impacted?

PubMed

Junger, Stacey; Trinkle, Nicole; Hall, Norma

2016-09-01

The aim was to examine the effect of a nurse leader certification preparation course on the confidence levels of the participants. Limited literature is available regarding nurse leader development and certifications. Barriers exist related to lack of confidence, high cost, time and lack of access to a preparation course. Nurse leaders (n = 51) completed a pre- and post-survey addressing confidence levels of participants related to the topics addressed in the nurse leader certification preparation course. There were statistically significant increases in confidence levels related to all course content for the participants. At the time of the study, there were 31.4% of participants intending to sit for the certification examination, and 5 of the 51 participants successfully sat for and passed the examination. A nurse leader certification preparation course increases confidence levels of the participants and removes barriers, thereby increasing the number of certifications obtained. The health-care climate is increasingly complex and nurse leaders need the expertise to navigate the ever-changing health-care environment. Certification in a specialty, such as leadership, serves as an indicator of a high level of competence in the field. © 2016 John Wiley & Sons Ltd.

A 6.1 s isomer and rotational bands in $sup 192$Os

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

Pakkanen, A.; Heikkinen, D.W.

A 6.1 plus or minus 0.2 s activity has been observed when natural Os targets were bombarded with 14.5 MeV neutrons. The activity is assigned to the decay of a high-spin isomer in /sup 192/Os at 2015.4 keV, which is depopulated by M2 and E3 transitions. Singles and coincidence gamma -ray spectra have allowed the identification of seven new states in /sup 192/Os. Several of these levels have been placed in either the ground- state or gamma -vibrational bands, which are strongly mixed. Excitation energies, B(E2) ratios for these bands are compared with different theoretical models. (auth) It is shownmore » that, if one uses single-particle energies from experiment and a delta residual interaction, it is not possible to obtain the energy of the giant dipole and spurious states of /sup 208/Pb, and at the same time obtain reasonable results for the low-lying two- particle spectra of /sup 210/Pb or /sup 210/Po. Related to the above problem, the isobaric analog state of /sup 208/Pb (in /sup 208/Bi) comes much too low in calculations using realistic interactions. It is noted that the above difficulties can be overcome, phenomenologically at least, by adding to the effective interaction some longrange repulsive components. The Bansal- French and the Schiffer interactions are examples of these; however, the dipole--dipole component of the Schiffer interaction gives much too large a splitting between the dipole state and spurious state. (auth)« less

SPECTROPHOTOMETRIC DETERMINATION OF CALCIUM WITH GLYOXAL BIS (2-HYDROXY- ANIL)

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

Florence, T.M.; Morgan, J.

1961-03-01

A selective method is described for the spectrophotometric determination of calcium using glyoxal bis(2hydroxy-anil) as the chromogenic agent. A comprehensive study of interferences and reagent variables was made. (auth)

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

Sadoulet, B.

The use of drift chambers in the field of high energy physics is reviewed including existing apparatus, plans and dreams. Comments are made especially on low cost large area drift chambers, use of pulse height information and high spatial resolution applications. (auth)

Low temperature, low pressure hydrogen gettering

DOEpatents

Anderson, D.R.; Courtney, R.L.; Harrah, L.A.

1975-07-22

A system is described for the gettering of hydrogen and its isotopes. The gettering materials are painted or coated onto, or otherwise disposed in an area or volume from which hydrogen is to be removed. (auth)

TEXTURES IN EXTRUDED URANIUM

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

Russell, R.B.

The preferred orientation or texture of alpha-extruded, cold-swaged, recrystallized, and beta-quenched uranium has been determined. An attempt is made to predict the mean thermal expansion coefficients from the texture and principal crystallographic thermal expansion coefficients. (auth)

Confidence limits and sample size for determining nonhost status of fruits and vegetables to tephritid fruit flies as a quarantine measure.

PubMed

Follett, Peter A; Hennessey, Michael K

2007-04-01

Quarantine measures including treatments are applied to exported fruit and vegetable commodities to control regulatory fruit fly pests and to reduce the likelihood of their introduction into new areas. Nonhost status can be an effective measure used to achieve quarantine security. As with quarantine treatments, nonhost status can stand alone as a measure if there is high efficacy and statistical confidence. The numbers of insects or fruit tested during investigation of nonhost status will determine the level of statistical confidence. If the level of confidence of nonhost status is not high, then additional measures may be required to achieve quarantine security as part of a systems approach. Certain countries require that either 99.99 or 99.9968% mortality, as a measure of efficacy, at the 95% confidence level, be achieved by a quarantine treatment to meet quarantine security. This article outlines how the level of confidence in nonhost status can be quantified so that its equivalency to traditional quarantine treatments may be demonstrated. Incorporating sample size and confidence levels into host status testing protocols along with efficacy will lead to greater consistency by regulatory decision-makers in interpreting results and, therefore, to more technically sound decisions on host status.

Global Positioning System III (GPS III)

DTIC Science & Technology

2015-12-01

Vacuum (TVAC) testing on October 12, 2015, and successfully completed baseline TVAC testing on December 23, 2015 – a major system- level event...0.0 0.0 Total 4142.9 5285.2 N/A 5180.4 4269.8 5650.1 5557.4 Current APB Cost Estimate Reference SCP dated July 02, 2015 Confidence Level Confidence... Level of cost estimate for current APB: 60% The current APB is established at the 60% confidence level . This estimate is built upon the February 2015

Relationship between self-confidence and sex role identity among managerial women and men.

PubMed

Chusmir, L H; Koberg, C S

1991-12-01

The self-confidence and sex role identities of 437 American female and male managers were examined by using three subscales of the Adjective Check List. Results showed that, contrary to stereotypes and older research, female and male managers were strikingly similar. Women and men with cross-sex role identities showed lower levels of self-confidence than those did with androgynous orientations; high self-confidence was linked with masculine and androgynous orientations. The managers were not significantly different in self-confidence when demographic variables and sex role identity were held constant. Sex role identity (but not gender) was a major factor in the level of self-confidence.

Occupational radiation exposure experience: Paducah Gaseous Diffusion Plant

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

Baker, R.C.

1975-01-01

The potential for significant uranium exposure in gaseous diffusion plants is very low. The potential for significant radiation exposure in uranium hexafluoride manufacturing is very real. Exposures can be controlled to low levels only through the cooperation and commitment of facility management and operating personnel. Exposure control can be adequately monitored by a combination of air analyses, urinalyses, and measurements of internal deposition as obtained by the IVRML. A program based on control of air-borne uranium exposure has maintained the internal dose of the Paducah Gaseous Diffusion Plant workman to less than one-half the RPG dose to the lung (15more » rem/year) and probably to less than one-fourth that dose. (auth)« less

Toxicity of mine drainage to embryonic and larval boreal toads (Bufonidae: Bufo boreas)

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

Porter, K.R.; Hakanson, D.E.

1976-05-17

Chemical analyses and bioassays of mine drainage were made to determine if it could be a factor accounting for the absence of amphibians from Clear Creek County, Colorado. The concentrations of hydrogen ion, iron, copper and zinc in the drainage were all individually much greater than the tolerance levels of premetamorphic toads. The lethality of the drainage was found to be of such a magnitude that it required diluting approximately one thousand times before larvae could survive in it. Boreal toad (Bufo boreas) larvae are more resistant to acidity than most fish but are very similar to other anuran larvaemore » and salmonids in their sensitivity to copper and zinc. (auth)« less

THE EXPERIMENTAL DESIGN FOR BeO IRAADIATION EXPERIMENTS ORNL 41-8 AND ORNL 41-9

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

Gardiner, D.A.

1962-07-18

The experimental plan for irradiating BeO pellets in Experiments ORNL 41- 8 and ORNL 41-9 was chosen in accordance with the principles of experimental design. The design is known by statisticians as a 2/sup 5/ factorial experiment confound'' in six replications. Five variables---size, density, grain size, temperature and time--are controlled at two levels to form the basic 2i factorial experiment. The sixth variable, neutron flux, is introduced by confounding on higher-order interactions. An explanation is presented in nontechnical language the means by which the aims of the experimenters and the physical conditions affecting the experiment were utilized in constructing themore » experimental design. (auth)« less

Non-LTE line formation in a magnetic field. I. Noncoherent scattering and true absorption

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

Domke, H.; Staude, J.

1973-08-01

The formation of a Zeeman-multiplet by noncoherent scattering and true absorption in a Milne-- Eddington atmosphere is considered assuming a homogeneous magnetic field and complete depolarization of the atomic line levels. The transfer equation for the Stokes parameters is transformed into a scalar integral equation of the Wiener-- Hopf type which is solved by Sobolev's method in closed form. The influence of the magnetic field on the mean scattering number in an infinite medium is discussed. The solution of the line formation problem is obtained for a Planckian source fruction. This solution may be simplified by making the ''finite fieldmore » approximation'', which should be sufficiently accurate for practical purposes. (auth)« less

Self-confidence of anglers in identification of freshwater sport fish

USGS Publications Warehouse

Chizinski, C.J.; Martin, D. R.; Pope, Kevin L.

2014-01-01

Although several studies have focused on how well anglers identify species using replicas and pictures, there has been no study assessing the confidence that can be placed in angler's ability to identify recreationally important fish. Understanding factors associated with low self-confidence will be useful in tailoring education programmes to improve self-confidence in identifying common species. The purposes of this assessment were to quantify the confidence of recreational anglers to identify 13 commonly encountered warm water fish species and to relate self-confidence to species availability and angler experience. Significant variation was observed in anglers self-confidence among species and levels of self-declared skill, with greater confidence associated with greater skill and with greater exposure. This study of angler self-confidence strongly highlights the need for educational programmes that target lower skilled anglers and the importance of teaching all anglers about less common species, regardless of skill level.

Disconnections Between Teacher Expectations and Student Confidence in Bioethics

NASA Astrophysics Data System (ADS)

Hanegan, Nikki L.; Price, Laura; Peterson, Jeremy

2008-09-01

This study examines how student practice of scientific argumentation using socioscientific bioethics issues affects both teacher expectations of students’ general performance and student confidence in their own work. When teachers use bioethical issues in the classroom students can gain not only biology content knowledge but also important decision-making skills. Learning bioethics through scientific argumentation gives students opportunities to express their ideas, formulate educated opinions and value others’ viewpoints. Research has shown that science teachers’ expectations of student success and knowledge directly influence student achievement and confidence levels. Our study analyzes pre-course and post-course surveys completed by students enrolled in a university level bioethics course ( n = 111) and by faculty in the College of Biology and Agriculture faculty ( n = 34) based on their perceptions of student confidence. Additionally, student data were collected from classroom observations and interviews. Data analysis showed a disconnect between faculty and students perceptions of confidence for both knowledge and the use of science argumentation. Student reports of their confidence levels regarding various bioethical issues were higher than faculty reports. A further disconnect showed up between students’ preferred learning styles and the general faculty’s common teaching methods; students learned more by practicing scientific argumentation than listening to traditional lectures. Students who completed a bioethics course that included practice in scientific argumentation, significantly increased their confidence levels. This study suggests that professors’ expectations and teaching styles influence student confidence levels in both knowledge and scientific argumentation.

47 CFR 95.1402 - Special requirements for 406 MHz PLBs.

Code of Federal Regulations, 2010 CFR

2010-10-01

...: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200 Auth Road, Suitland, Maryland... Administration (NOAA) whose address is: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200...

47 CFR 95.1402 - Special requirements for 406 MHz PLBs.

Code of Federal Regulations, 2011 CFR

2011-10-01

...: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200 Auth Road, Suitland, Maryland... Administration (NOAA) whose address is: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200...

47 CFR 95.1402 - Special requirements for 406 MHz PLBs.

Code of Federal Regulations, 2013 CFR

2013-10-01

...: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200 Auth Road, Suitland, Maryland... Administration (NOAA) whose address is: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200...

47 CFR 95.1402 - Special requirements for 406 MHz PLBs.

Code of Federal Regulations, 2012 CFR

2012-10-01

...: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200 Auth Road, Suitland, Maryland... Administration (NOAA) whose address is: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200...

1024-channel portable gamma-ray spectrometer

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

McGibbon, A.L.

An instrument is described which is designed to determine radioactive isotope spectra in the field under adverse environmental conditions. The instrument is battery-powered, stores and compares multiple spectra, and performs computations upon the resulting displayed graph. (auth)

Attention: Page has moved

Science.gov Websites

Weather Service NWS logo - Click to go to the NWS home page Climate Prediction Center Site Map News Prediction Climate Prediction Center 5200 Auth Road Camp Springs, Maryland 20746 Climate Prediction Center

Waterflooding employing surfactants produced in situ

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

Foster, W.R.

1975-11-25

A waterflooding process involving the injection of an aqueous solution of an alkali metal fluoride and an alkaline agent to convert divalent metal soaps within the reservoir to the corresponding surface-active monovalent metal soaps is described. (auth)

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

Trenta, A.; Giordano, A.; Caprotti, M.

Following a previous study of the radioprotective action of royal jelly given by mouth, its protective action when applied locally to skin reactions produced by x-ray therapy was studied. The results show no significant protective action under the conditions of the experiments. (auth)

Stress response and communication in surgeons undergoing training in endoscopic management of major vessel hemorrhage: a mixed methods study.

PubMed

Jukes, Alistair K; Mascarenhas, Annika; Murphy, Jae; Stepan, Lia; Muñoz, Tamara N; Callejas, Claudio A; Valentine, Rowan; Wormald, P J; Psaltis, Alkis J

2017-06-01

Major vessel hemorrhage in endoscopic, endonasal skull-base surgery is a rare but potentially fatal event. Surgical simulation models have been developed to train surgeons in the techniques required to manage this complication. This mixed-methods study aims to quantify the stress responses the model induces, determine how realistic the experience is, and how it changes the confidence levels of surgeons in their ability to deal with major vascular injury in an endoscopic setting. Forty consultant surgeons and surgeons in training underwent training on an endoscopic sheep model of jugular vein and carotid artery injury. Pre-course and post-course questionnaires providing demographics, experience level, confidence, and realism scores were taken, based on a 5-point Likert scale. Objective markers of stress response including blood pressure, heart rate, and salivary alpha-amylase levels were measured. Mean "realism" score assessed posttraining showed the model to be perceived as highly realistic by the participants (score 4.02). Difference in participant self-rated pre-course and post-course confidence levels was significant (p < 0.0001): mean pre-course confidence level 1.66 (95% confidence interval [CI], 1.43 to 1.90); mean post-course confidence level 3.42 (95% CI, 3.19 to 3.65). Differences in subjects' heart rates (HRs) and mean arterial blood pressures (MAPs) were significant between injury models (p = 0.0008, p = 0.0387, respectively). No statistically significant difference in salivary alpha-amylase levels pretraining and posttraining was observed. Results from this study indicate that this highly realistic simulation model provides surgeons with an increased level of confidence in their ability to deal with the rare but potentially catastrophic event of major vessel injury in endoscopic skull-base surgery. © 2017 ARS-AAOA, LLC.

Confidence in the safety of standard childhood vaccinations among New Zealand health professionals.

PubMed

Lee, Carol; Duck, Isabelle; Sibley, Chris G

2018-05-04

To investigate the level of confidence in the safety of standard childhood vaccinations among health professionals in New Zealand. Data from the 2013/14 New Zealand Attitudes and Values Study (NZAVS) was used to investigate the level of agreement that "it is safe to vaccinate children following the standard New Zealand immunisation schedule" among different classes of health professionals (N=1,032). Most health professionals showed higher levels of vaccine confidence, with 96.7% of those describing their occupation as GP or simply 'doctor' (GPs/doctor) and 90.7% of pharmacists expressing strong vaccine confidence. However, there were important disparities between some other classes of health professionals, with only 65.1% of midwives and 13.6% of practitioners of alternative medicine expressing high vaccine confidence. As health professionals are a highly trusted source of vaccine information, communicating the consensus of belief among GPs/doctors that vaccines are safe may help provide reassurance for parents who ask about vaccine safety. However, the lower level of vaccine confidence among midwives is a matter of concern that may have negative influence on parental perceptions of vaccinations.

Investigating the psychological resilience, self-confidence and problem-solving skills of midwife candidates.

PubMed

Ertekin Pinar, Sukran; Yildirim, Gulay; Sayin, Neslihan

2018-05-01

The high level of psychological resilience, self-confidence and problem solving skills of midwife candidates play an important role in increasing the quality of health care and in fulfilling their responsibilities towards patients. This study was conducted to investigate the psychological resilience, self-confidence and problem-solving skills of midwife candidates. It is a convenience descriptive quantitative study. Students who study at Health Sciences Faculty in Turkey's Central Anatolia Region. Midwife candidates (N = 270). In collection of data, the Personal Information Form, Psychological Resilience Scale for Adults (PRSA), Self-Confidence Scale (SCS), and Problem Solving Inventory (PSI) were used. There was a negatively moderate-level significant relationship between the Problem Solving Inventory scores and the Psychological Resilience Scale for Adults scores (r = -0.619; p = 0.000), and between Self-Confidence Scale scores (r = -0.524; p = 0.000). There was a positively moderate-level significant relationship between the Psychological Resilience Scale for Adults scores and the Self-Confidence Scale scores (r = 0.583; p = 0.000). There was a statistically significant difference (p < 0.05) between the Problem Solving Inventory and the Psychological Resilience Scale for Adults scores according to getting support in a difficult situation. As psychological resilience and self-confidence levels increase, problem-solving skills increase; additionally, as self-confidence increases, psychological resilience increases too. Psychological resilience, self-confidence, and problem-solving skills of midwife candidates in their first-year of studies are higher than those who are in their fourth year. Self-confidence and psychological resilience of midwife candidates aged between 17 and 21, self-confidence and problem solving skills of residents of city centers, psychological resilience of those who perceive their monthly income as sufficient are high. Psychological resilience and problem-solving skills for midwife candidates who receive social support are also high. The fact that levels of self-confidence, problem-solving skills and psychological resilience of fourth-year students are found to be low presents a situation that should be taken into consideration. Copyright © 2018 Elsevier Ltd. All rights reserved.

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

Mandl, V.; Oliveira, L.

A portable alpha monitor with solid state detectors is described. The full scale range is 1000 p.p.s., and an auditive indication is also provided. The battery life is about 70 hr. The instrument operates correctly in a gamma field up to 8 r/hr. (auth)

A 23-GROUP NEUTRON THERMALIZATION CROSS SECTION LIBRARY

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

Doctor, R.D.; Boling, M.A.

1963-07-15

A set of 23-group neutron cross sections for use in the calculation of neutron thermalization and thermal neutron spectral effects in SNAP reactors is compiled. The sources and methods used to obtain the cross sections are described. (auth)

Subcuaneous extravasation of CSF demonstration by scinticisternography

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

Front, D.; Penning, L.

The scinticisternographic lindings using /sup 131/I-HSA in a case of traumatic subcutaneous extravasation of CSF into the facial region are described. This extravasation has to be differentiated from local accumulation of radioactivity inside the CSF spaces. (auth)

Remote Minehunting System (RMS)

DTIC Science & Technology

2015-12-01

1449.4 1449.4 744.6 Confidence Level Confidence Level of cost estimate for current APB: 50% The Independent Cost Estimate to support the RMS Nunn...which the Derpartment has been successful. It is difficult to calculate mathematically the precise confidence levels associated with life-cycle cost...Baseline (TY $M) Initial PAUC Production Estimate Changes PAUC Development Estimate Econ Qty Sch Eng Est Oth Spt Total 12.957 -0.752 3.262 2.950 0.454

THE EFFECTS OF FEEDING IRRADIATED PROK, BREAD, GREEN BEANS, AND SHRIMP TO RATS ON GROWTH AND ON FIVE ENZYMES IN BLOOD

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

Brin, M.; Ostashvver, A.S.; Kalinsky, H.

Four x-irradiated foods were fed to individual groups of rats over a 12- week period. Pork, green beans, and shrimp had each been exposed at each of two levels, 2.79 and 5.58 megarad, and the bread was exposed to each of two lower levels, 25 and 50 kilorad. Pork, green beans, and shrimp were fed at a level of 35% of the diet on a dry weight basis. In addition, bread, green beans, and shrimp were fed at a level of 80% on the diet on a dry weight basis. Ail diets were adequately supplemented with vitamins and minerals andmore » in the case of green beans with additional protein. After the 12-week feeding period the following blood enzyme systems were studied: erythrocyte transketolase, plasma transaminase, erythrocyte glycolysis, erythrocyte respiration in the presence of methylene blue, and erythrocyte glutathione reductase. Growth and blood enzyme levels of rats fed irradiated foods were similar to those fed the unirradiated control material. No signs of toxicity related to the food irradiation were noted. (auth)« less

Guided Multiple Launch Rocket System/Guided Multiple Launch Rocket System Alternative Warhead (GMLRS/GMLRS AW)

DTIC Science & Technology

2015-12-01

Physical Configuration Audit for the GMLRS AW was completed at the system level in March 2015. ​Director of Operational Test and Evaluation Assessment...Confidence Level Confidence Level of cost estimate for current APB: 50% The confidence level used in establishing the cost estimate for GMLRS/GMLRS AW...PAUC Development Estimate Changes PAUC Production Estimate Econ Qty Sch Eng Est Oth Spt Total 0.039 -0.003 0.001 0.001 0.009 0.037 0.000 0.000 0.045

Joint Tactical Radio System Handheld, Manpack, and Small Form Fit Radios (JTRS HMS)

DTIC Science & Technology

2015-12-01

Waveform (SRW). It is the primary squad level communication system. The Manpack Radio is for use in a classified environment and ports the following...0.0 0.0 0.0 0.0 Acq O&M 0.0 0.0 -- 0.0 0.0 0.0 0.0 Total 8242.6 8242.6 N/A 8755.6 9201.0 9201.0 10907.0 Confidence Level Confidence Level of cost...acquisition programs in which the Department has been successful. It is difficult to calculate mathematically the precise confidence levels

Measuring Confidence Levels of Male and Female Students in Open Access Enabling Courses

ERIC Educational Resources Information Center

Atherton, Mirella

2015-01-01

The study of confidence was undertaken at the University of Newcastle with students selecting science courses at two campuses. The students were enrolled in open access programs and aimed to gain access to undergraduate studies in various disciplines at University. The "third person effect" was used to measure the confidence levels of…

"But I Thought I Knew That!" Student Confidence Judgments on Course Examinations in Introductory Psychology

ERIC Educational Resources Information Center

Nevid, Jeffrey S.; Cheney, Brianna; Thompson, Clarissa

2015-01-01

Students in an introductory psychology class rated their level of confidence in their answers to exam questions on four multiple-choice exams through the course of a semester. Correlations between confidence judgments and accuracy (correct vs. incorrect) at the individual item level showed modest but significant relationships for item sets scaled…

On how the brain decodes vocal cues about speaker confidence.

PubMed

Jiang, Xiaoming; Pell, Marc D

2015-05-01

In speech communication, listeners must accurately decode vocal cues that refer to the speaker's mental state, such as their confidence or 'feeling of knowing'. However, the time course and neural mechanisms associated with online inferences about speaker confidence are unclear. Here, we used event-related potentials (ERPs) to examine the temporal neural dynamics underlying a listener's ability to infer speaker confidence from vocal cues during speech processing. We recorded listeners' real-time brain responses while they evaluated statements wherein the speaker's tone of voice conveyed one of three levels of confidence (confident, close-to-confident, unconfident) or were spoken in a neutral manner. Neural responses time-locked to event onset show that the perceived level of speaker confidence could be differentiated at distinct time points during speech processing: unconfident expressions elicited a weaker P2 than all other expressions of confidence (or neutral-intending utterances), whereas close-to-confident expressions elicited a reduced negative response in the 330-500 msec and 550-740 msec time window. Neutral-intending expressions, which were also perceived as relatively confident, elicited a more delayed, larger sustained positivity than all other expressions in the 980-1270 msec window for this task. These findings provide the first piece of evidence of how quickly the brain responds to vocal cues signifying the extent of a speaker's confidence during online speech comprehension; first, a rough dissociation between unconfident and confident voices occurs as early as 200 msec after speech onset. At a later stage, further differentiation of the exact level of speaker confidence (i.e., close-to-confident, very confident) is evaluated via an inferential system to determine the speaker's meaning under current task settings. These findings extend three-stage models of how vocal emotion cues are processed in speech comprehension (e.g., Schirmer & Kotz, 2006) by revealing how a speaker's mental state (i.e., feeling of knowing) is simultaneously inferred from vocal expressions. Copyright © 2015 Elsevier Ltd. All rights reserved.

MTR FAST NEUTRON FLUX MEASUREMENTS FOR CYCLE 146

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

Weber, L D; Hogg, C H

1962-03-20

The fast neutron fluxes in selected positions of the MTR were measured for Cycle 146. The measurements were made at the beginning, throughout, and at the end of the cycle (564 Mwd). Vertical traverses for each position monitors are shown. (auth)

PROPANE BUBBLE CHAMBER (in Italian)

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

Loria, A.; Mittner, P.; Scotoni, I.

1959-03-01

A propane bubble chamber of about two liters volume is described: details concerning the membrane expansion mechanism, the structure of the windows and the illuminating system are given. Some features of the use of it, recently made at the CERN synchrocyclotron, are indicated. (auth)

TITANIUM METALLURGY: A BIBLIOGRAPHY OF CONFIDENTIAL U.S. ATOMIC ENERGY COMMISSION REPORTS AVAILABLE THROUGH THE CIVILIAN APPLICATION PROGRAM

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

None

1956-09-01

This bibliography contains 54 annotated references to reports on titunium metallurgy. References are included to reports written prior to August 1, 1956. Author, subject, and report number indexes are provided. (auth)

Pauli Principle and Pion Scattering

DOE R&D Accomplishments Database

Bethe, H. A.

1972-10-01

It is pointed out that if the Pauli principle is taken into account in the discussion of pion scattering by complex nuclei (as it ought, of course, to be) some rather implausible consequences of some earlier treatments of this problem can be avoided. (auth)

Spectroscopic obit for the eclipsing binary IQ Persei

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

Young, A.

1975-10-01

Spectroscopic orbital elements are derived for the eclipsing binary IQ Per. Faint secondary lines are detected, and a mass ratio and individual masses are inferred. The components are found to be on the main sequence, and the system is detached. (auth)

A High Vacuum High Speed Ion Pump

DOE R&D Accomplishments Database

Foster, J. S. Jr.; Lawrence, E. O.; Lofgren, E. J.

1952-08-27

A vacuum pump based on the properties of a magnetically collimated electric discharge is described. It has a speed in the range 3000 to 7000 liters a second and a base pressure in the order of 10{sup -6} mm. (auth)

Engineering Student Self-Assessment through Confidence-Based Scoring

ERIC Educational Resources Information Center

Yuen-Reed, Gigi; Reed, Kyle B.

2015-01-01

A vital aspect of an answer is the confidence that goes along with it. Misstating the level of confidence one has in the answer can have devastating outcomes. However, confidence assessment is rarely emphasized during typical engineering education. The confidence-based scoring method described in this study encourages students to both think about…

THE EFFECT OF ENDOCRINE CHANGES, OF IRRADIATION AND OF ADDITIONAL TREATMENT OF THE SKIN ON THE INDUCTION OF TUMOURS IN THE FEMALE GENITAL TRACT OF RATS BY CHEMICAL CARCINOGENS

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

Cherry, C.P.; Glucksmann, A.

1960-09-01

Ovariectomy reduced the incidence of vaginal tumors after intravaginal application of 9,10-dimethyl-1,2benzanthracene (DMBA), and administration of oestrogen or of progesterone raised the incidence of tumors only slightly. Repeated whole-body exposures to x rays also lowered the rate of tumor incidence after painting and so to a lesser extent did repeated pelvic irradiation of virgin rats and the application of DMBA to an additional dorsal skin region. In surgical castrates adrenalectomy or repeated pelvic irradiation restored the level of tumor incidence to that of intact and pregnant rats. Three levels of vaginal tumor incidence were found, and the distribution of tumormore » types and the length of the average induction time varied with the level: at the lowest level there were only sarcomas, at the intermediate level fibromas and presarcomatous lesions were found in addition to the sarcomas; and at the highest level the incidence of sarcomas is increased and epithelial tumors appear. Tumor induction in the vulva is not affected by castration, radiation, or hormone treatment but varies at certain dose levels with the dose of the carcinogen. (auth)« less

Comparison of patients' confidence in office, ambulatory, and home blood pressure measurements as methods of assessing for hypertension.

PubMed

Viera, Anthony J; Tuttle, Laura A; Voora, Raven; Olsson, Emily

2015-12-01

Uncertainty exists when relying on office (clinic) blood pressure (BP) measurements to diagnose hypertension. Home BP monitoring and ambulatory BP monitoring (ABPM) provide measurements that are more strongly associated with cardiovascular disease. The degree to which patients exhibit uncertainty about office BP measurements is unknown, as is whether they would have less uncertainty about other BP measurement methods. We therefore assessed people's confidence in methods of BP measurement, comparing perceptions about office BP monitoring, home BP monitoring, and ABPM techniques. We surveyed adults who were 30 years or older (n=193), all whom had undergone office BP measurements, two sessions of 24-h ABPM, and two 5-day periods of home BP monitoring. Respondents were asked to indicate their level of confidence on a 1 to 9 scale that BP measurements represented their 'usual' BP. Respondents had least confidence that assessments of BP made by office measurements (median 6) represented usual BP and greater confidence that assessments made by home BP monitoring (median 7, P<0.0001 vs. office) and ABPM (median 8, P<0.0001 vs. office) did so. Confidence levels did not vary significantly by BP levels, age, sex, race, or education level. The finding that patients do not have a great deal of confidence in office BP measurements, but have a higher degree of confidence in home BP and ambulatory BP assessment methods may be helpful in guiding strategies to diagnose hypertension and improve antihypertensive medication adherence.

CH-47F Improved Cargo Helicopter (CH-47F)

DTIC Science & Technology

2015-12-01

Confidence Level Confidence Level of cost estimate for current APB: 50% The Confidence Level of the CH-47F APB cost estimate, which was approved on April...M) Initial PAUC Development Estimate Changes PAUC Production Estimate Econ Qty Sch Eng Est Oth Spt Total 10.316 -0.491 3.003 -0.164 2.273 7.378...SAR Baseline to Current SAR Baseline (TY $M) Initial APUC Development Estimate Changes APUC Production Estimate Econ Qty Sch Eng Est Oth Spt Total

Quasiparticle Aggregation in the Fractional Quantum Hall Effect

DOE R&D Accomplishments Database

Laughlin, R. B.

1984-10-10

Quasiparticles in the Fractional Quantum Hall Effect behave qualitatively like electrons confined to the lowest landau level, and can do everything electrons can do, including condense into second generation Fractional Quantum Hall ground states. I review in this paper the reasoning leading to variational wavefunctions for ground state and quasiparticles in the 1/3 effect. I then show how two-quasiparticle eigenstates are uniquely determined from symmetry, and how this leads in a natural way to variational wavefunctions for composite states which have the correct densities (2/5, 2/7, ...). I show in the process that the boson, anyon and fermion representations for the quasiparticles used by Haldane, Halperin, and me are all equivalent. I demonstrate a simple way to derive Halperin`s multiple-valued quasiparticle wavefunction from the correct single-valued electron wavefunction. (auth)

Self-confidence and level of knowledge after cardiopulmonary resuscitation training in 14 to 18-year-old schoolchildren: A randomised-interventional controlled study in secondary schools in Germany.

PubMed

Wingen, Sabine; Schroeder, Daniel C; Ecker, Hannes; Steinhauser, Susanne; Altin, Sibel; Stock, Stephanie; Lechleuthner, Alex; Hohn, Andreas; Böttiger, Bernd W

2018-07-01

Education of schoolchildren in cardiopulmonary resuscitation (CPR) is a strategic goal for improvement of bystander CPR in society. The primary objective was to analyse the impact of CPR training on the resuscitation knowledge and self-confidence of secondary schoolchildren. In addition, independent predictors of improved CPR knowledge and self-confidence were investigated. Randomised-interventional controlled study. Four secondary schools in Germany. Four hundred and twenty-four schoolchildren aged from 14 to 18 years were included into the study. Fifty-one percent were female, and 33% had an immigrant background. The intervention group received a 90-min CPR training session, whereas controls had no intervention. Levels of knowledge and self-confidence in initiating CPR were analysed by a study questionnaire before (t0), 90 min after (t1) and 6 months after training (t2). Based on the evaluation of study questionnaires, the primary endpoint was to determine the development of resuscitation knowledge and self-confidence in initiating cardiopulmonary resuscitation at survey time-points t0, t1 and t2. Schoolchildren in the intervention group (n=207) showed a significantly higher level of knowledge (P < 0.001) and self-confidence (P < 0.001) at t1 and t2 compared with controls (n=217). Age was a predictor for long-term self-confidence [odds ratio (OR), 1.20; 95% confidence interval (95% CI), 1.02 to 1.41; P = 0.032]. The long-term benefit in the level of knowledge and self-confidence were significantly higher in native compared with immigrant schoolchildren: (OR, 1.79; 95% CI, 1.14 to 2.82; P = 0.011) and (OR, 1.67; 95% CI, 1.07 to 2.60; P = 0.024), respectively. Guideline compliant (90 min) theoretical and practical CPR training improves the level of knowledge and self-confidence in 14 to 18-year-old schoolchildren. Older schoolchildren are more likely to have increased self-confidence with respect to initiating CPR. Schoolchildren with an immigrant background showed a significantly lower increase in their level of knowledge and self-confidence compared with native children. Adaptation and simplification of teaching materials and further research on educational methods for CPR are urgently needed to enable a sustainable approach to teaching CPR, which also produces a long-lasting effect in the entire population.

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

Wolfrom, M.L.

G-values for irradiated sucrose, methyl alpha -Dglucopyranoside, and maltose are reported. Trehalose (aqueous) is hydrolyzed by cathode ray irradiation. The per cent hydrolysis of trehalose increases with increasing irradiation dosage. One reducing substance other than D-glucose was detected in the product of irradiated powdered crystalline D-glucose. (auth)

Termination for superconducting power transmission systems

DOEpatents

Forsyth, E.B.; Jensen, J.E.

1975-08-26

This patent relates to a cold, electrical gradient, terminal section for a superconducting cable for alternating current power transmission. A cold electrical gradient section filled with a gaseous coolant acting as an insulator is provided in series with a separate thermal gradient section. (auth)

ANALYTICAL METHOD FOR THE DIRECT ABSORPTIOMETRIC DETERMINATION OF BORON IN ZIRCONIUM METAL AND ITS ALLOYS

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

None

1962-01-01

The sample is dissolved in a mixture of ammonium suifate and sulfuric acid. Rosocyanin is formed in the presence of Zr and, after separation from excess curcumin, it is dissolved in ethanol for absorptiometric measurement. (auth)

Qualitative analysis scheme based on the properties of ion exchangers (in French)

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

Machiroux, R.; Merciny, E.; Schreiber, A.

1973-01-01

A systematic scheme of qualitative analysis of some cations is presented. For didactic purposes the properties of cationic and anionic ion exchangers were used. At the present time, this scheme is limited to 23 ions, including Sr. (auth)

Teachers' confidence in teaching HIV/AIDS and sexuality in South African and Tanzanian schools.

PubMed

Helleve, Arnfinn; Flisher, Alan J; Onya, Hans; Kaaya, Sylvia; Mukoma, Wanjiru; Swai, Caroline; Klepp, Knut-Inge

2009-06-01

This study aimed to investigate how confident and comfortable teachers at Tanzanian and South African urban and rural schools are in teaching HIV/AIDS and sexuality. It also aimed at identifying factors associated with teacher confidence and investigated how reported confidence was associated with the implementation of educational programmes on HIV/AIDS and sexuality. A survey was conducted among South African grade 8 and 9 Life Orientation teachers, and among science teachers for grade 5 to 7 in public primary schools in Tanzania. Teachers' confidence levels were measured on a four-item scale (0-3). A total number of 266 teachers participated in a survey in 86 schools in South Africa and Tanzania. Overall, teachers report to be rather confident in teaching HIV/AIDS and sexuality. Tanzanian teachers reported higher levels of confidence then did their South Africa colleagues (2.1 vs. 1.8; p < 0.01). Confidence in teaching was significantly associated with the numbers of years teaching HIV/AIDS and sexuality, formal training in these subjects, experience in discussing the topics with others, school policy and priority given to teaching HIV/AIDS and sexuality at school. Finally, confidence in teaching remained positively associated with self-reported successful implementation of school-based programmes after adjusting for gender, age, religion and numbers of years teaching HIV/AIDS and sexuality. Across urban and rural sites in South Africa and Tanzania teachers reported to be fairly confident in teaching HIV/AIDS and sexuality. Further strengthening of their confidence levels could, however, be an important measure for improving the implementation of such programmes.

dLocAuth: a dynamic multifactor authentication scheme for mCommerce applications using independent location-based obfuscation

NASA Astrophysics Data System (ADS)

Kuseler, Torben; Lami, Ihsan A.

2012-06-01

This paper proposes a new technique to obfuscate an authentication-challenge program (named LocProg) using randomly generated data together with a client's current location in real-time. LocProg can be used to enable any handsetapplication on mobile-devices (e.g. mCommerce on Smartphones) that requires authentication with a remote authenticator (e.g. bank). The motivation of this novel technique is to a) enhance the security against replay attacks, which is currently based on using real-time nonce(s), and b) add a new security factor, which is location verified by two independent sources, to challenge / response methods for authentication. To assure a secure-live transaction, thus reducing the possibility of replay and other remote attacks, the authors have devised a novel technique to obtain the client's location from two independent sources of GPS on the client's side and the cellular network on authenticator's side. The algorithm of LocProg is based on obfuscating "random elements plus a client's data" with a location-based key, generated on the bank side. LocProg is then sent to the client and is designed so it will automatically integrate into the target application on the client's handset. The client can then de-obfuscate LocProg if s/he is within a certain range around the location calculated by the bank and if the correct personal data is supplied. LocProg also has features to protect against trial/error attacks. Analysis of LocAuth's security (trust, threat and system models) and trials based on a prototype implementation (on Android platform) prove the viability and novelty of LocAuth.

COMMENTS ON THE DEFINITION OF THE CURIE, WITH SPECIAL REFERENCE TO NATURAL RADIOACTIVE MATERIALS

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

Jaeger, R.G.; Houtermans, H.

1962-06-01

An analysis of maximum permissible levels of radionuclides showed that the definition of the curie, when applied to natural radioactive materials, is ambiguous. The history of the definition of the curie is reviewed. In the past, no clear distinction was raade between the curie as a unit of the quantity of a radioactive substance, and the curie as a unit of radioactivity. This has caused different interpretation of the curic as applied to natural radioactive materials, e.g., natural uranium and natural thorium. A redefinition of the curie as a pure unit of radioactivity is suggested, and maximum permissible levels ormore » concentrations of natural radioactive materials, such as uranium or thorium, should be stated in mass per unit mass or volume of air, water, food, etc. It is recommended that, in legislation listing the amounts of naturally occurring radioactive substances, these amounts be stated in milligrams or Kilograms. (auth)« less

Determinants of observed confidant support for divorced mothers.

PubMed

DeGarmo, D S; Forgatch, M S

1997-02-01

Marital separation can be a time of extreme stress and can significantly disrupt support networks and support processes when they are needed most. The purpose of this investigation was to test mechanisms of support erosion in a multimethod study of 138 divorced mothers and their confidants. Previous work was extended by using observational measures of confidant support in a process model including (a) maternal characteristics over time, (b) support person characteristics, and (c) relationship characteristics (intimacy and confidant relationship type). A hypothesized mechanism of erosion was supported in which ongoing maternal distress was positively associated with levels of confidant negativity, which in turn was related to lower levels of observed support. Having a partner was related to more intimacy than was having family and friends. Contrary to expectation, however, having a partner was related to lower levels of support, and intimacy was not related to observed support.

Commitment to change and assessment of confidence: tools to inform the design and evaluation of interprofessional education.

PubMed

Evans, Jessica A; Mazmanian, Paul E; Dow, Alan W; Lockeman, Kelly S; Yanchick, Victor A

2014-01-01

This study examines use of the commitment-to-change model (CTC) and explores the role of confidence in evaluating change associated with participation in an interprofessional education (IPE) symposium. Participants included students, faculty, and practitioners in the health professions. Satisfaction with the symposium and levels of commitment and confidence in implementing a change were assessed with a post-questionnaire and a follow-up questionnaire distributed 60 days later. Participants who reported changed behavior were compared with those who did not make a change. Independent sample t-tests determined whether there were differences between groups in their average level of commitment and/or confidence immediately following the symposium and at follow-up. At post-symposium, attendees were satisfied with content and format. Sixty-eight percent said they would make a change in profession related activities. At 60 days, 53% indicated they had implemented a change. In comparison to those who reported no change, those who made a change reported higher levels of commitment and higher levels of confidence. Logistic regression suggested that the combination of commitment and confidence did not predict implementation in this sample; however, confidence had a higher odds ratio for predicting success than did commitment. Confidence should be studied further in relation to commitment as a predictor of behavioral change associated with participation in an IPE symposium. Evaluators and instructional designers should consider use of follow-up support activities to improve learners' confidence and likelihood of successful behavior change in the workplace. © 2014 The Alliance for Continuing Education in the Health Professions, the Society for Academic Continuing Medical Education, and the Council on Continuing Medical Education, Association for Hospital Medical Education.

Students' Confidence in the Ability to Transfer Basic Math Skills in Introductory Physics and Chemistry Courses at a Community College

ERIC Educational Resources Information Center

Quinn, Reginald

2013-01-01

The purpose of this study was to examine the confidence levels that community college students have in transferring basic math skills to science classes, as well as any factors that influence their confidence levels. This study was conducted with 196 students at a community college in central Mississippi. The study was conducted during the month…

MORPHOLOGICAL AND HISTOCHEMICAL CHANGES IN THE SPLEEN AND LYMPH NODE OF WHITE MICE IN RESPONSE TO RADIATION AND ANTIGENIC EFFECTS (in Russian)

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

Akopova, V.A.

1961-01-01

Research was carried out on 90 white ntice subjected to x irradiation (Series I), vaccination with a brucellosis vaccine (Series II), and to a combined action of these factors (Series III and IV). The spleen and lymph nodes were studied both morphologically and histochemically. When exposing the mice to a total x-ray dose of 335 r, visible destructive changes and the lowering of desoxyribonucleic and ribonucleic acid level were found to occur in the spleen and lymph nodes. In the case of a single vaccination of the mice with the brucellosis vaccine, a certain vaccinal hyperplasia was observed in themore » spleen and lymph nodes, the level of desoxyribonucleic and ribonucleic acid being normal. In vaccinating the white mice, following total irradiation, destructive changes along with a gradual lowering of desoxyribonucleic and ribonucleic acid level are observed in the spleen and lymph nodes. The total x irradiation following a singie vaccination with the brucellosis vaccine, brings about slight destructive changes along with a simultaneous reticular hyperplasia in the spleen and lymph nodes. The levels of desoxyribonucleic and ribonucleic acids are high at all times. (auth)« less

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

Athay, R.G.; House, L.L.

Comparisons of intensities of Mg I and O I emission lines in the flash- spectrum of the low chromosphere reveal evidence of marked departures from a Boltzmann distribution of populations of energy levels. These departures are in the same sense as those found earlier for He I, viz., an overpopulation of the levels connected to the ground state through optically forbidden transitions relative to the levels with permitted transitions. A search for a similar effect in the populations of the excited singlets and triplets of Ca I did not indicate a significant departure from a Boltzmann distribution for the levelsmore » studied. Evidence is found that the ratio Ca I/Ca II is much greater than would be expected in thermodynnmic equilibrium. For Mg I, the optical thickness of the chromosphere in the triplet lines is obtained directly from the observed intensity of the forbidden ibtercombination line lambda 4571 (3/sup 3/P-3/sup 1/ S). Computed populations of energy levels for a model Mg I atom under a range of temperature and density show agreement with observational data for choices of chromospheric temperatures and densities consistent with a model departing from spherical symmetry. (auth)« less

FORCE MULTIPLIER FOR USE WITH MASTER SLAVES

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

Miles, L.E.; Parsons, T.C.; Howe, P.W.

1961-06-01

A force multiplier was designed. This piece of equipment was made to increase the gripping force presently available in the Model 8 master slave. The force multiplier described incorporates a clamp which can be quickly attached to and detached from the master slave hand. (auth)

The Effectiveness of a Japanese Language Course on Cross-Cultural Competence.

ERIC Educational Resources Information Center

Miyamoto, Yumi; Rasmussen, Roger

1998-01-01

A quasi-experimental research design was employed to measure the effectiveness of a Japanese language and culture course entitled "Japanese for the Business Community." The study analyzed seven cross-cultural competence attributes in interactions with Japanese people in business settings. (Auth/JL)

PROBLEMS OF THE OPTICAL MODEL FOR DEUTERONS. I. PARAMETERS OF THE OPTICAL POTENTIAL (in Polish)

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

Grotowski, K.

1963-01-01

S>Problems concerning the optical model are discussed. Some special properties of deuterons as projectiles influence the optical model describing their interaction with nuclei. Several experiments were performed to obtain parameters of the optical model potential. (auth)

Harwell high pressure heat transfer loop

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

Bennett, A.W.; Keeys, R.K.F.

1967-12-15

A detailed description is presented of the Harwell (Chemical Engineering and Process Technology Division) high pressure, steam-water heat transfer loop; this description is aimed at supplementing the information given in reports on individual experiments. The operating instructions for the loop are given in an appendix. (auth)

Type-II domains in ferroelectric gadolinium molybdate (in German)

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

Bohm, J.; Kuersten, H.D.

Etching (001)-faces of gadolinium molybdate (GMO) reveals new kinds of domains. They are created by a translation, that leaves the spontaneous polarization and the transition parameter invariant. The translation vector is a part of a lattice vector, similar to stacking faults. (auth)

Electron beam device

DOEpatents

Beckner, E.H.; Clauser, M.J.

1975-08-12

This patent pertains to an electron beam device in which a hollow target is symmetrically irradiated by a high energy, pulsed electron beam about its periphery and wherein the outer portion of the target has a thickness slightly greater than required to absorb the electron beam pulse energy. (auth)

OBSERVATIONS ON RHENIUM-TUNGSTEN ALLOYS (in German)

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

Kirner, K.

1959-12-01

Re-W alloys were arc melted between tungsten electrodes, checked metallographically and their hardness was determined. Two intermetallic phases were found, one of which---a stgroa phase--having a broad homogeneity range (approximately from 40 to 60%) and a high hardness (1800 VPN/sub 300/). (auth)

Student Physical Therapists' Competence and Self-Confidence in Basic Clinical Assessment and Musculoskeletal Differential Diagnosis.

PubMed

Alexander, Kathleen M; Olsen, Janette; Seiger, Cindy; Peterson, Teri S

2016-01-01

Student physical therapists are expected to learn and confidently perform technical skills while integrating nontechnical behavioral and cognitive skills in their examinations and interventions. The purpose of this study was to compare the self-confidence of entry-level doctoral student physical therapists during foundational assessment and musculoskeletal differential diagnosis courses and the students' competencies based on skills examinations. Methods using qualitative and quantitative procedures. Student physical therapists (n=27) participated in a basic assessment course followed by a musculoskeletal differential diagnosis course. The students completed confidence surveys prior to skills examinations in both courses. A random sample of students participated in focus groups, led by a researcher outside the physical therapy department. Student confidence did not correlate with competency scores. At the end of the basic clinical assessment course and the beginning of the differential diagnosis course, students' confidence was significantly below baseline. However, by the end of the differential diagnosis course, student confidence had returned to original baseline levels. Over three semesters, the students lost confidence and then regained confidence in their abilities. Additional experience and practice influenced perceived confidence. However, increased competence may have been associated with poor self-appraisal skills instead of increased competency.

Tracing the evolution of chiropractic students’ confidence in clinical and patient communication skills during a clinical internship: a multi-methods study

PubMed Central

2012-01-01

Background Anecdotal evidence points to variations in individual students’ evolving confidence in clinical and patient communication skills during a clinical internship. A better understanding of the specific aspects of internships that contribute to increasing or decreasing confidence is needed to best support students during the clinical component of their study. Methods A multi-method approach, combining two large-scale surveys with 269 students and three in-depth individual interviews with a sub-sample of 29 students, was used to investigate the evolution of change in student confidence during a 10-month long internship. Change in levels of confidence in patient communication and clinical skills was measured and relationship to demographic factors were explored. The interviews elicited students’ accounts and reflections on what affected the evolution of their confidence during the internship. Results At the start of their internship, students were more confident in their patient communication skills than their clinical skills but prior experience was significantly related to confidence in both. Initial confidence in patient communication skills was also related to age and prior qualification but not gender whilst confidence in clinical skills was related to gender but not age or prior qualification. These influences were maintained over time. Overall, students’ levels of confidence in patient communication and clinical skills confidence increased significantly over the duration of the internship with evidence that change over time in these two aspects were inter-related. To explore how specific aspects of the internship contributed to changing levels of confidence, two extreme sub-groups of interviewees were identified, those with the least increase and those with the highest increase in professional confidence over time. A number of key factors affecting the development of confidence were identified, including among others, interactions with clinicians and patients, personal agency and maturing as a student clinician. Conclusion This study provides insight into the factors perceived by students as affecting the development of professional confidence during internships. One particularly promising area for educational intervention may be the promotion of a pro-active approach to professional learning. PMID:22713168

Tracing the evolution of chiropractic students' confidence in clinical and patient communication skills during a clinical internship: a multi-methods study.

PubMed

Hecimovich, Mark; Volet, Simone

2012-06-19

Anecdotal evidence points to variations in individual students' evolving confidence in clinical and patient communication skills during a clinical internship. A better understanding of the specific aspects of internships that contribute to increasing or decreasing confidence is needed to best support students during the clinical component of their study. A multi-method approach, combining two large-scale surveys with 269 students and three in-depth individual interviews with a sub-sample of 29 students, was used to investigate the evolution of change in student confidence during a 10-month long internship. Change in levels of confidence in patient communication and clinical skills was measured and relationship to demographic factors were explored. The interviews elicited students' accounts and reflections on what affected the evolution of their confidence during the internship. At the start of their internship, students were more confident in their patient communication skills than their clinical skills but prior experience was significantly related to confidence in both. Initial confidence in patient communication skills was also related to age and prior qualification but not gender whilst confidence in clinical skills was related to gender but not age or prior qualification. These influences were maintained over time. Overall, students' levels of confidence in patient communication and clinical skills confidence increased significantly over the duration of the internship with evidence that change over time in these two aspects were inter-related. To explore how specific aspects of the internship contributed to changing levels of confidence, two extreme sub-groups of interviewees were identified, those with the least increase and those with the highest increase in professional confidence over time. A number of key factors affecting the development of confidence were identified, including among others, interactions with clinicians and patients, personal agency and maturing as a student clinician. This study provides insight into the factors perceived by students as affecting the development of professional confidence during internships. One particularly promising area for educational intervention may be the promotion of a pro-active approach to professional learning.

B-2 Extremely High Frequency SATCOM and Computer Increment 1 (B-2 EHF Inc 1)

DTIC Science & Technology

2015-12-01

Confidence Level Confidence Level of cost estimate for current APB: 55% This APB reflects cost and funding data based on the B-2 EHF Increment I SCP...This cost estimate was quantified at the Mean (~55%) confidence level . Total Quantity Quantity SAR Baseline Production Estimate Current APB...Production Estimate Econ Qty Sch Eng Est Oth Spt Total 33.624 -0.350 1.381 0.375 0.000 -6.075 0.000 -0.620 -5.289 28.335 Current SAR Baseline to Current

Explorations in Statistics: Confidence Intervals

ERIC Educational Resources Information Center

Curran-Everett, Douglas

2009-01-01

Learning about statistics is a lot like learning about science: the learning is more meaningful if you can actively explore. This third installment of "Explorations in Statistics" investigates confidence intervals. A confidence interval is a range that we expect, with some level of confidence, to include the true value of a population parameter…

Mass media and heterogeneous bounds of confidence in continuous opinion dynamics

NASA Astrophysics Data System (ADS)

Pineda, M.; Buendía, G. M.

2015-02-01

This work focuses on the effects of an external mass media on continuous opinion dynamics with heterogeneous bounds of confidence. We modified the original Deffuant et al. and Hegselmann and Krause models to incorporate both, an external mass media and a heterogeneous distribution of confidence levels. We analysed two cases, one where only two bounds of confidence are taken into account, and other where each individual of the system has her/his own characteristic level of confidence. We found that, in the absence of mass media, diversity of bounds of confidence can improve the capacity of the systems to reach consensus. We show that the persuasion capacity of the external message is optimal for intermediate levels of heterogeneity. Our simulations also show the existence, for certain parameter values, of a counter-intuitive effect in which the persuasion capacity of the mass media decreases if the mass media intensity is too large. We discuss similarities and differences between the two heterogeneous versions of these continuous opinion dynamic models under the influence of mass media.

Relations of competitive state anxiety and efficacy of young volleyball players.

PubMed

Milavić, Boris; Jurko, Damir; Grgantov, Zoran

2013-05-01

With the aim of validating the Competitive State Anxiety Inventory on a population of young Croatian volleyball players, 286 examinees, 106 male and 180 female volleyball players (average age of 16.09+/-1.83), filled out the CSAI-2, constructed by Martens, Vealey, Burton, Bump and Smith (1990)1. Given the fact that all scales of the Competitive State Anxiety Inventory have good homogeneity, reliability and sensitivity, it can be concluded that they represent high-quality measuring instruments for measuring psychological characteristics of young volleyball players. Young male and female volleyball players generally have a moderate level of self-confidence, and their cognitive anxiety is more prominent that somatic anxiety. In order to determine the age and gender differences in somatic and cognitive anxiety and self-confidence, parametric analysis of differences was performed and coefficients of the independent samples t-test were calculated. By analysis of differences according to age, it has been established that female junior players, in relation to female youth players, express a significantly lower level of somatic and cognitive anxiety and a significantly higher level of self-confidence. As opposed to female players, male youth and junior players do not differ in any of the analysed variables. By analysis of differences according to gender, it has been established that male youth players have a significantly higher level of self-confidence in comparison to female youth players. No significant differences were found in the level of competitive anxiety and self-confidence by analysis of variance between different player roles. No significant differences were found by discriminant analysis in somatic and cognitive anxiety, and self-confidence of female volleyball players of different situational efficacy. The group of least efficient male volleyball players is characterized by a very low level of self-confidence, while the most efficient group of volleyball players is characterized by a somewhat lower level of cognitive and somatic anxiety.

Dead certain: confidence and conservatism predict aggression in simulated international crisis decision-making.

PubMed

Johnson, Dominic D P; McDermott, Rose; Cowden, Jon; Tingley, Dustin

2012-03-01

Evolutionary psychologists have suggested that confidence and conservatism promoted aggression in our ancestral past, and that this may have been an adaptive strategy given the prevailing costs and benefits of conflict. However, in modern environments, where the costs and benefits of conflict can be very different owing to the involvement of mass armies, sophisticated technology, and remote leadership, evolved tendencies toward high levels of confidence and conservatism may continue to be a contributory cause of aggression despite leading to greater costs and fewer benefits. The purpose of this paper is to test whether confidence and conservatism are indeed associated with greater levels of aggression-in an explicitly political domain. We present the results of an experiment examining people's levels of aggression in response to hypothetical international crises (a hostage crisis, a counter-insurgency campaign, and a coup). Levels of aggression (which range from concession to negotiation to military attack) were significantly predicted by subjects' (1) confidence that their chosen policy would succeed, (2) score on a liberal-conservative scale, (3) political party affiliation, and (4) preference for the use of military force in real-world U.S. policy toward Iraq and Iran. We discuss the possible adaptive and maladaptive implications of confidence and conservatism for the prospects of war and peace in the modern world.

Constraints on the unified dark energy dark matter model from latest observational data

NASA Astrophysics Data System (ADS)

Wu, Puxun; Yu, Hongwei

2007-03-01

The generalized Chaplygin gas (GCG) is studied in this paper by using the latest observational data including 182 gold sample type Ia supernovae (Sne Ia) data, the ESSENCE Sne Ia data, the distance ratio from z = 0.35 to 1089 (the redshift of decoupling), the cosmic microwave background shift parameter and the Hubble parameter data. Our results rule out the standard Chaplygin gas model (α = 1) at the 99.7% confidence level, but allow for the λCDM model (α = 0) at the 68.3% confidence level. At a 95.4% confidence level, we obtain w = -0.74-0.09+0.10 and α = -0.14-0.19+0.30. In addition, we find that the phase transition from deceleration to acceleration occurs at redshift zq = 0~0.78-0.89 at a 1σ confidence level for the GCG model.

Spectroscopic survey of southern hemisphere white dwarfs. II. Spectroscopic data for forty-one southern white dwarfs

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

Wegner, G.

New spectroscopic data on 41 southern white dwarfs are presented. Most of these stars have not teen previously observed spectroscopically. Spectral types, as well as equivalent widths and line profiles for a few selected lines, are given. (auth)

THE PROLIFERATION IN VITRO OF TISSUE TAKEN FROM TUBERS OF HELIANTHUS TUBEROSUS IRRADIATED WITH X-RAYS (in French)

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

Jonard, R.

1959-06-22

ABS>The irradiation of tubers of Helianthus tuberosus (Jerusalem Artichoke) with x rays causes latent changes in their cells which are expressed later when one makes use of their tissues in an in vitro culture. (tr-auth)

Industrial Production of Uranium; PRODUCCION INDUSTRIAL DE URANIO

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

Pedregal, J.D.

1956-01-01

The purity requirements of uranium and the necessity of purifying the uranium compounds previous to its metallurgical treatment are briefly discussed as an introduction to the different methods reduction to the metal. The methods which are used by the Junta de Energia Nuclear are indicated. (tr-auth)

Improved ASP I/O performance. [For 370/195

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

Engert, D.E.

1975-11-01

An improvement to the I/0 routines of ASP is described, which can save 25% of the EXCPs issued by ASP. Unused buffers in the buffer pool are used to retain parts of the single track table, and only two modules are changed. 4 figures (auth)

Professional Development: Setting the Context.

ERIC Educational Resources Information Center

Watts, Gordon E.; Hammons, James O.

2002-01-01

States that professional development programs, though they run the gamut from fledgling to comprehensive, have developed over the last three decades as a result of the rapid growth of the community college. Examines some of the early struggles of the professional development movement and discusses future challenges. (AUTH/NB)

Binghamton Burial Vault Co., 2017-06

EPA Pesticide Factsheets

EPA is providing notice of a proceeding to assess a Class I civil penalty for alleged violations of the Clean Water Act (Act). EPA is also providing notice of opportunity to comment on the proposed penalty assessment. Under 33 U.S.C. § 1319(g), EPA is auth

THE GRAVIMETRIC DETERMINATION OF MOLYBDENUM IN URANIUM-MOLYBDENUM ALLOYS

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

None

1959-03-01

The sample is dissolved in nitric and hydrochloric acids. After heating the solution with sulfuric acid, molybodenum is precipitated as the benzoin-oxime complex which is ignited to molybdic oxide. This is dissolved in ammonia, and the molybdenum is precipitated and weighed as lead molybdate. (auth)

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

Surynek, J.; Mach, P.; Dressler, J.

The administering of oxytetracycline, vitamin B/sub 12/, and folic acid is efficient in the recovery from postirradiation leucopenia in whole-body irradiated chicks. Oxytetracycline and vitamin B/sub 12/ combined influenced especially the number of heterophils, and the addition of folic acid resulted in a significant rise of the absolute lymphocyte count. (auth)

Radial blanket assembly orificing arrangement

DOEpatents

Patterson, J.F.

1975-07-01

A nuclear reactor core for a liquid metal cooled fast breeder reactor is described in which means are provided for increasing the coolant flow through the reactor fuel assemblies as the reactor ages by varying the coolant flow rate with the changing coolant requirements during the core operating lifetime. (auth)

Simultaneous confidence sets for several effective doses.

PubMed

Tompsett, Daniel M; Biedermann, Stefanie; Liu, Wei

2018-04-03

Construction of simultaneous confidence sets for several effective doses currently relies on inverting the Scheffé type simultaneous confidence band, which is known to be conservative. We develop novel methodology to make the simultaneous coverage closer to its nominal level, for both two-sided and one-sided simultaneous confidence sets. Our approach is shown to be considerably less conservative than the current method, and is illustrated with an example on modeling the effect of smoking status and serum triglyceride level on the probability of the recurrence of a myocardial infarction. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Overconfidence and Career Choice.

PubMed

Schulz, Jonathan F; Thöni, Christian

2016-01-01

People self-assess their relative ability when making career choices. Thus, confidence in their own abilities is likely an important factor for selection into various career paths. In a sample of 711 first-year students we examine whether there are systematic differences in confidence levels across fields of study. We find that our experimental confidence measures significantly vary between fields of study: While students in business related academic disciplines (Political Science, Law, Economics, and Business Administration) exhibit the highest confidence levels, students of Humanities range at the other end of the scale. This may have important implications for subsequent earnings and professions students select themselves in.

Constraints on the Generalized Chaplygin Gas Model from Recent Supernova Data and Baryonic Acoustic Oscillations

NASA Astrophysics Data System (ADS)

Wu, Puxun; Yu, Hongwei

2007-04-01

Constraints from the Gold sample Type Ia supernova (SN Ia) data, the Supernova Legacy Survey (SNLS) SN Ia data, and the size of the baryonic acoustic oscillation (BAO) peak found in the Sloan Digital Sky Survey (SDSS) on the generalized Chaplygin gas (GCG) model, proposed as a candidate for the unified dark matter-dark energy scenario (UDME), are examined in the cases of both a spatially flat and a spatially curved universe. Our results reveal that the GCG model is consistent with a flat universe up to the 68% confidence level, and the model parameters are within the allowed parameter ranges of the GCG as a candidate for UDME. Meanwhile, we find that in the flat case, both the Gold sample + SDSS BAO data and the SNLS sample + SDSS BAO data break the degeneracy of As and α and allow for the scenario of a cosmological constant plus dark matter (α=0) at the 68% confidence level, although they rule out the standard Chaplygin gas model (α=1) at the 99% confidence level. However, for the case without a flat prior, the SNLS SN Ia + SDSS BAO data do not break the degeneracy between As and α, and they allow for ΛCDM (α=0) and the standard Chaplygin gas model (α=1) at a 68% confidence level, while the Gold SN Ia + SDSS BAO break the degeneracy of As and α and rule out ΛCDM at a 68% confidence level and the standard Chaplygin gas model at a 99% confidence level.

Benign positional vertigo and hyperuricaemia.

PubMed

Adam, A M

2005-07-01

To find out if there is any association between serum uric acid level and positional vertigo. A prospective, case controlled study. A private neurological clinic. All patients presenting with vertigo. Ninety patients were seen in this period with 78 males and 19 females. Mean age was 47 +/- 3 years (at 95% confidence level) with a standard deviation of 12.4. Their mean uric acid level was 442 +/- 16 (at 95% confidence level) with a standard deviation of 79.6 umol/l as compared to 291 +/- 17 (at 95% confidence level) with a standard deviation of 79.7 umol/l in the control group. The P-value was less than 0.001. That there is a significant association between high uric acid and benign positional vertigo.

Using an R Shiny to Enhance the Learning Experience of Confidence Intervals

ERIC Educational Resources Information Center

Williams, Immanuel James; Williams, Kelley Kim

2018-01-01

Many students find understanding confidence intervals difficult, especially because of the amalgamation of concepts such as confidence levels, standard error, point estimates and sample sizes. An R Shiny application was created to assist the learning process of confidence intervals using graphics and data from the US National Basketball…

Relations among affect, abstinence motivation and confidence, and daily smoking lapse risk.

PubMed

Minami, Haruka; Yeh, Vivian M; Bold, Krysten W; Chapman, Gretchen B; McCarthy, Danielle E

2014-06-01

This study tested the hypothesis that changes in momentary affect, abstinence motivation, and confidence would predict lapse risk over the next 12-24 hr using Ecological Momentary Assessment (EMA) data from smokers attempting to quit smoking. One hundred and three adult, daily, treatment-seeking smokers recorded their momentary affect, motivation to quit, abstinence confidence, and smoking behaviors in near real time with multiple EMA reports per day using electronic diaries postquit. Multilevel models indicated that initial levels of negative affect were associated with smoking, even after controlling for earlier smoking status, and that short-term increases in negative affect predicted lapses up to 12, but not 24, hr later. Positive affect had significant effects on subsequent abstinence confidence, but not motivation to quit. High levels of motivation appeared to reduce increases in lapse risk that occur over hours although momentary changes in confidence did not predict lapse risk over 12 hr. Negative affect had short-lived effects on lapse risk, whereas higher levels of motivation protected against the risk of lapsing that accumulates over hours. An increase in positive affect was associated with greater confidence to quit, but such changes in confidence did not reduce short-term lapse risk, contrary to expectations. Relations observed among affect, cognitions, and lapse seem to depend critically on the timing of assessments.

Impact of Gender on Satisfaction and Confidence in Cholesterol Control Among Veterans at Risk for Cardiovascular Disease.

PubMed

Goldstein, Karen M; Stechuchak, Karen M; Zullig, Leah L; Oddone, Eugene Z; Olsen, Maren K; McCant, Felicia A; Bastian, Lori A; Batch, Bryan C; Bosworth, Hayden B

2017-07-01

Compared with men, women have poorer lipid control. Although potential causes of this disparity have been explored, it is unknown whether patient-centered factors such as satisfaction and confidence contribute. We evaluated (1) whether satisfaction with lipid control and confidence in ability to improve it vary by gender and (2) whether sociodemographic characteristics modify the association. We evaluated baseline survey responses from the Cardiovascular Intervention Improvement Telemedicine Study, including self-rated satisfaction with cholesterol levels and confidence in controlling cholesterol. Participants had poorly controlled hypertension and/or hypercholesterolemia. A total of 428 veterans (15% women) participated. Compared with men, women had higher low-density lipoprotein values at 141.2 versus 121.7 mg/dL, respectively (p < 0.05), higher health literacy, and were less likely to have someone to help track their medications (all p < 0.05). In an adjusted model, women were less satisfied with their cholesterol levels than men with estimated mean scores of 4.3 versus 5.6 on a 1-10 Likert scale (p < 0.05). There was no significant difference in confidence by gender. Participants with support for tracking medications reported higher confidence levels than those without, estimated mean 7.8 versus 7.2 (p < 0.05). Women veterans at high risk for cardiovascular disease were less satisfied with their lipid control than men; however, confidence in ability to improve lipid levels was similar. Veterans without someone to help to track medications were less confident, and women were less likely to have this type of social support. Lack of social support for medication tracking may be a factor in lingering gender-based disparities in hyperlipidemia.

Satisfaction and gender issues in otolaryngology residency.

PubMed

Wynn, Rhoda; Rosenfeld, Richard M; Lucente, Frank E

2005-06-01

To evaluate the otolaryngology residency experience with attention to operative experience, career guidance, and gender. Otolaryngology residents were anonymously surveyed by mail about their residency experience. The 22-item survey was scored on a 5-point ordinal Likert scale. Responses were analyzed with respect to gender and postgraduate year (PGY) level. Complete surveys were returned by 261 otolaryngology residents (24% female). PGY level correlated with confidence that surgical skills were appropriate (P = 0.003), establishment of solid career network (P = 0.003), and confidence that surgical abilities are adequate for practice (P = 0.028). Female residents reported less confidence that surgical skills were appropriate (P = 0.050) and that surgical abilities were adequate for postresidency practice (P = 0.035). Women were encouraged to enter private practice more often (P = 0.012), were less likely to have a solid career network ( P = 0.025), and were less confident about being able to run their own practice (P = 0.036) Significant differences exist for several questions regarding surgical confidence and career issues, even after correction for PGY level.

Degree of Anger During Anger-Generating Situations Among Psychiatric Staff Nurses: Association Between Nurses' Attitudes Toward Service Users' Aggression and Confidence in Intervening in Aggressive Situations.

PubMed

Shimosato, Seiji; Kinoshita, Aimi

2018-04-17

Some situations require psychiatric staff nurses to respond to service users' negativity or aggression. As a result, psychiatric staff nurses may experience anger. The current study examined how anger levels of psychiatric staff nurses triggered by anger-generating situations by service users affected nurses' confidence and attitudes. A questionnaire survey was administered among 386 psychiatric staff nurses. The questionnaire surveyed anger levels in anger-generating situations, aggressiveness, nurses' attitudes toward aggression, and self-efficacy of intervening in aggressive situations. Path analysis revealed differences between male and female nurses. Male nurses' anger in response to physical aggression was mild when they were confident in handling aggression. Furthermore, female nurses who had high confidence in intervening in an aggressive situation had low anger levels. Confidence in intervening in aggressive situations appeared to dissipate anger and ease nurses during aggressive interactions. [Journal of Psychosocial Nursing and Mental Health Services, xx(x), xx-xx.]. Copyright 2018, SLACK Incorporated.

Confidence Moderates the Role of Control Beliefs in the Context of Age-Related Changes in Misinformation Susceptibility.

PubMed

Auslander, Margeaux V; Thomas, Ayanna K; Gutchess, Angela H

2017-01-01

Background/Study Context: The present experiment investigated the role of confidence and control beliefs in susceptibility to the misinformation effect in young and older adults. Control beliefs are perceptions about one's abilities or competence and the extent to which one can influence performance outcomes. It was predicted that level of control beliefs would influence misinformation susceptibility and overall memory confidence. Fifty university students (ages 18-26) and 37 community-dwelling older adults (ages 62-86) were tested. Participants viewed a video, answered questions containing misinformation, and then completed a source-recognition test to determine whether the information presented was seen in the video, the questionnaire only, both, or neither. For each response, participants indicated their level of confidence. The relationship between control beliefs and memory performance was moderated by confidence. That is, individuals with lower control beliefs made more errors as confidence decreased. Additionally, the relationship between confidence and memory performance differed by age, with greater confidence related to more errors for young adults. Confidence is an important factor in how control beliefs and age are related to memory errors in the misinformation effect. This may have implications for the legal system, particularly with eyewitness testimony. The confidence of an individual should be considered if the eyewitness is a younger adult.

47 CFR 87.199 - Special requirements for 406.0-406.1 MHz ELTs.

Code of Federal Regulations, 2014 CFR

2014-10-01

... identification code, issued by the National Oceanic and Atmospheric Administration (NOAA), the United States... code addressed to: NOAA/SARSAT Beacon Registration, E/SP3, Federal Building 4, Room 3320, 5200 Auth..., type of aircraft, alternate emergency contact, and other information as required by NOAA. The...

47 CFR 95.1402 - Special requirements for 406 MHz PLBs.

Code of Federal Regulations, 2014 CFR

2014-10-01

... code, issued by the National Oceanic and Atmospheric Administration (NOAA), the United States Program...: SARSAT Beacon Registration, NOAA, NESDIS, E/SP3, Room 3320, FB-4, 5200 Auth Road, Suitland, Maryland... emergency contact and include the following statement: “WARNING” failure to register this PLB with NOAA...

47 CFR 87.199 - Special requirements for 406.0-406.1 MHz ELTs.

Code of Federal Regulations, 2013 CFR

2013-10-01

... identification code, issued by the National Oceanic and Atmospheric Administration (NOAA), the United States... code addressed to: NOAA/SARSAT Beacon Registration, E/SP3, Federal Building 4, Room 3320, 5200 Auth..., type of aircraft, alternate emergency contact, and other information as required by NOAA. The...

Oak Ridge Computerized Hierarchical Information System (ORCHIS) status report, July 1973

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

Brooks, A.A.

1974-01-01

This report summarizes the concepts, software, and contents of the Oak Ridge Computerized Hierarchical Information System. This data analysis and text processing system was developed as an integrated, comprehensive information processing capability to meet the needs of an on-going multidisciplinary research and development organization. (auth)

Computer memory: the LLL experience. [Octopus computer network

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

Fletcher, J.G.

1976-02-01

Those aspects of Octopus computer network design are reviewed that relate to memory and storage. Emphasis is placed on the difficulties and problems that arise because of the limitations of present storage devices, and indications are made of the directions in which technological advance could be of most value. (auth)

Determination of parameters of a nuclear reactor through noise measurements

DOEpatents

Cohn, C.E.

1975-07-15

A method of measuring parameters of a nuclear reactor by noise measurements is described. Noise signals are developed by the detectors placed in the reactor core. The polarity coincidence between the noise signals is used to develop quantities from which various parameters of the reactor can be calculated. (auth)

Plague and the gallium scan: case report

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

Stahly, T.L.; Shoop, J.D.

1975-11-01

Inflammation in the right axillary lymph nodes and the meninges was detected by $sup 67$Ga-citrate scans in an 11-year-old boy with Yersinia pestis infection. This case provides another example of $sup 67$Ga localizing to areas of infection, indicating potential utility in future cases of bubonic plague. (auth)

Attention: Page has moved

Science.gov Websites

Weather Service NWS logo - Click to go to the NWS home page Climate Prediction Center Site Map News with the new address. NOAA/ National Weather Service National Centers for Environmental Prediction Climate Prediction Center 5200 Auth Road Camp Springs, Maryland 20746 Climate Prediction Center Web Team

Attention: Page has moved

Science.gov Websites

Weather Service NWS logo - Click to go to the NWS home page Climate Prediction Center Site Map News address. NOAA/ National Weather Service National Centers for Environmental Prediction Climate Prediction Center 5200 Auth Road Camp Springs, Maryland 20746 Page Author: Climate Prediction Center Internet Team

Attention: Page has moved

Science.gov Websites

Weather Service NWS logo - Click to go to the NWS home page Climate Prediction Center Site Map News bookmarks with the new address. NOAA/ National Weather Service National Centers for Environmental Prediction Climate Prediction Center 5200 Auth Road Camp Springs, Maryland 20746 Page Author: Climate Prediction

ANALYTICAL METHOD FOR THE ABSORPTIOMETRIC DETERMINATION OF BORON IN MAGNESIUM METAL

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

None

1963-01-01

Magnesium is dissolved in H/sub 2/SO/sub 4/ in the presence of CH/sub 3/ OH and B is separated by distillation as methyl borate. Rosocyanin is formed, separated from excess curcumin and dissolved in C/sub 2/H/sub 5/OH for absorptiometric measurement. (auth)

ANALYTICAL METHOD FOR THE ABSORPTIOMETRIC DETERMINATION OF BORON IN URANIUM METAL POWDER

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

None

1963-01-01

The U powder is dissolved in HCl and H/sub 2/O/sub 2/. The resulting solution is evaporated to dryness in the presence of H/sub 2/SO/sub 3/. Rosocyanin is formed, separated from the excess curcumin, and dissolved in ethanol for absorptiometric measurement. (auth)

THE HAZARD OF CORPUSCULAR SOLAR RADIATION TO MANNED SPACEFLIGHT

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

Waddington, C.J.

BS>The presently available data on the storms'' of solar particles are used to compute the radiation dose that would be received by astronauts shielded by different thicknesses of material. It is shown that at least some of these storms represent a severe hazard to successful manned spaceflights. (auth)

Radiocytogenetic effects on bone marrow cells of opossum in vivo

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

Prasad, N.; Bushong, S.C.; MacIntyre, R.S.

1973-03-01

Bone marrow cells of the opossum, Didelphis virginiana, were examined 24 hr following a whole-body /sup 60/Co radiation dosc of 100, and the chromosomal aberrations resulted in a radiation sensitivity of 0.000605 aberrations/cell/rad/ sup 2/ for single-hit and multihit type damage respectively. (auth)

THE FIXATION OF RADIOPOTASSIUM IN AUTO- AND HOMOGRAFTS OF SKIN IN THE RAT (in Italian)

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

Scortecci, V.

1962-09-01

The potassium fixation of auto- and homografts of skin in the rat was studied using K/sup 42/. A slightly higher uptake of K was observed in the autograft than in the homograft as early as the 4th day after grafting. (auth)

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

Boegh, P.; Hopkirk, R.; Junod, A.

From international nuclear industries fair; Basel, Switzerland (16 Oct 1972). The extensive environmental studies performed in Switzerland for the cooling towers of the Kaiseraugst and Leibstadt Nuclear Power Plants are presented. The computer program SAUNA for the calculation of the cooling tower plume behavior is briefly described. The main results of the environmental studies are summarized. (8 references) (auth)

Antiproton--neutron bound state

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

Ju, I.; Tomozawa, Y.

1972-08-01

The possibility of an antiproton-neutron bound state for explaining a narrow peak which was found recently in the experiment p + n yields 4 pi and 6 pi is discussed. It is pointed out that the state is likely to be a /sup 1/P/ sub 1/ state or a higher angular momentum state. (auth)

Valve for cryogenic service

DOEpatents

Worwetz, H.A.

1975-09-02

This patent relates to a valve for use with a liquefied gas at cryogenic temperatures in which a pair of joined knife edges are bellows controlled to contact an indium alloy seat in an annular slot when flow is to be stopped. The sealing alloy may be renewed by heating in situ. (auth)

THE STAL DOUBLE-ROTATION RADIAL FLOW STEAM TURBO-GENERATOR

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

None

1959-06-01

The principles of operation, constructional features and the advantages that are claimed for the doublerotation radial flow type over the axial flow type are described, as well as its developments to meet both the requirements of very large outputs and the special needs of nuclear power stations. (auth)

THE EFFECTS OF CHLORAMPHENICOL, STREPTOMYCIN, AND PENICILLIN ON THE INDUCTION OF MUTATIONS BY X-RAYS IN DROSOPHILA MELANOGASTER

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

Clark, A.M.

The injection of chloramphenicol, streptomycin, or penicillin into Drosophila males just before exposure to x irradiation caused a reduction in the yield of sex linked recessive lethal mutations. The effect appears to be primarily on spermatids and possibly spermatocytes. (auth)

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

Isikara, A.M.

The dependence of the amplitude of the lunar daily geomagnetic variation on sunspot number and magnetic activity is investigated using data from Istanbul for the years 1952 to 1968. Annual and seasonal values of the amplitudes of the lunar semi-diurnal variation are determined, and compared with sunspot number and magnetic activity using partial correlation techniques. (auth)

Visual sensations induced by Cherenkov radiation

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

McNulty, P.J.; Pease, V.P.; Bond, V.P.

1975-08-01

Pulses of relativistic singly charged particles entering the eyeball induce a variety of visual phenomena by means of Cerenkov radiation generated during their passage through the vitreous. These phenomena are similar in appearance to many of the visual sensations experienced by Apollo astronauts exposed to the cosmic rays in deep space. (auth)

Recalculation of the Critical Size and Multiplication Constant of a Homogeneous UO{sub 2}-D{sub 2}O Mixtures

DOE R&D Accomplishments Database

Wigner, E. P.; Weinberg, A. M.; Stephenson, J.

1944-02-11

The multiplication constant and optimal concentration of a slurry pile is recalculated on the basis of Mitchell's experiments on resonance absorption. The smallest chain reacting unit contains 45 to 55 m{sup 3}of d{sub 2}O. (auth).

Recalculation of the Critical Size and Multiplication Constant of a Homogeneous UO{sub 2} - D{sub 2}O Mixtures

DOE R&D Accomplishments Database

Wigner, E. P.; Weinberg, A. M.; Stephenson, J.

1944-02-11

The multiplication constant and optimal concentration of a slurry pile is recalculated on the basis of Mitchell`s experiments on resonance absorption. The smallest chain reacting unit contains 45 to 55 m{sup 3}of D{sub 2}O. (auth)

Possibility of the amplification of the radiation at the wave length lambda = 1776 A in recombining plasma (in Russian)

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

Gudzenko, L.I.; Evstigneev, V.V.; Yakovlenko, S.I.

1973-09-01

A calculation is made of the characteristics of the amplification of the radiation in the vaccum ultraviolet spectral range in the 2s-2p transition of Be ions in supercooled (intensely recombining) dense Be plasma. (tr-auth)

The Absolute Measurement of Beta Activities; SOBRE LA MEDIDA ABSOLUTA DE ACTIVIDADES BETA

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

Del Rio, C.S.; Reynaldo, O.J.; Mayquez, E.R.

1956-01-01

A new method for the absolute beta counting of solid samples is given. The measurements are made with an inside Geiger-Muller tube of new construction. The backscattering correction, when using an "infinite" thick mounting, is discussed and results for different materials given. (auth)

Considerations on the Analytical Control of Sulfur Traces in Uranium Metal; CONSIDERACIONES SOBRE EL CONTROL ANALITICO DE TRAZAS DE AZUFRE (SULFURO) EN URANIO METAL

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

Cellini, R.F.; Sanchez, L.G.

1956-01-01

Volumetric and colorimetric determinations of sulfur in uranium were carried out by acid treatment and evaluation of SH/sup 2/. According to the experimental results a discussion of both methods was made. (auth)

Energy resource alternatives competition. Progress report for the period February 1, 1975--December 31, 1975. [Space heating and cooling, hot water, and electricity for homes, farms, and light industry

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

Matzke, D.J.; Osowski, D.M.; Radtke, M.L.

1976-01-01

This progress report describes the objectives and results of the intercollegiate Energy Resource Alternatives competition. The one-year program concluded in August 1975, with a final testing program of forty student-built alternative energy projects at the Sandia Laboratories in Albuquerque, New Mexico. The goal of the competition was to design and build prototype hardware which could provide space heating and cooling, hot water, and electricity at a level appropriate to the needs of homes, farms, and light industry. The hardware projects were powered by such nonconventional energy sources as solar energy, wind, biologically produced gas, coal, and ocean waves. The competitionmore » rules emphasized design innovation, economic feasibility, practicality, and marketability. (auth)« less

Results of R/V Yaquina cruise YALOC-74, Leg 3: seabed disposal program, North Pacific study area MPG-2, 33$sup 0$20'N, 151$sup 0$00'W, November 30--December 21, 1974

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

Heath, G R

1975-07-01

During 10 days in the vicinity of 33$sup 0$20'N, 151$sup 0$00'W (MPG-2 area), three near-bottom current meters were deployed, the bathymetry and subbottom acoustic structure of the surrounding seafloor were determined, and sediment cores were collected for studies of artificial radionuclide distribution, geotechnical properties, geochemical properties, and to identify the character of shallow acoustic reflectors. Large volume water samples for artificial radionuclide studies and suspended sediment were also collected. These samples and data will supplement earlier material to be used in the evaluation of the central North Pacific as a potential site for the ultimate disposal of high-level reactor wastes.more » (auth)« less

Overconfidence and Career Choice

PubMed Central

Schulz, Jonathan F.; Thöni, Christian

2016-01-01

People self-assess their relative ability when making career choices. Thus, confidence in their own abilities is likely an important factor for selection into various career paths. In a sample of 711 first-year students we examine whether there are systematic differences in confidence levels across fields of study. We find that our experimental confidence measures significantly vary between fields of study: While students in business related academic disciplines (Political Science, Law, Economics, and Business Administration) exhibit the highest confidence levels, students of Humanities range at the other end of the scale. This may have important implications for subsequent earnings and professions students select themselves in. PMID:26808273

Korean consumers' perceptions of health/functional food claims according to the strength of scientific evidence

PubMed Central

Kim, Ji Yeon; Kang, Eun Jin; Kwon, Oran

2010-01-01

In this study, we investigated that consumers could differentiate between levels of claims and clarify how a visual aid influences consumer understanding of the different claim levels. We interviewed 2,000 consumers in 13 shopping malls on their perception of and confidence in different levels of health claims using seven point scales. The average confidence scores given by participants were 4.17 for the probable level and 4.07 for the possible level; the score for the probable level was significantly higher than that for the possible level (P < 0.05). Scores for confidence in claims after reading labels with and without a visual aid were 5.27 and 4.43, respectively; the score for labeling with a visual aid was significantly higher than for labeling without a visual aid (P < 0.01). Our results provide compelling evidence that providing health claims with qualifying language differentiating levels of scientific evidence can help consumers understand the strength of scientific evidence behind those claims. Moreover, when a visual aid was included, consumers perceived the scientific levels more clearly and had greater confidence in their meanings than when a visual aid was not included. Although this result suggests that consumers react differently to different claim levels, it is not yet clear whether consumers understand the variations in the degree of scientific support. PMID:21103090

Confidence level in performing clinical procedures among medical officers in nonspecialist government hospitals in Penang, Malaysia.

PubMed

Othman, Mohamad Sabri; Merican, Hassan; Lee, Yew Fong; Ch'ng, Kean Siang; Thurairatnam, Dharminy

2015-03-01

A prospective cross-sectional study was conducted at 3 government hospitals over 6 months to evaluate the confidence level of medical officers (MOs) to perform clinical procedure in nonspecialist government hospitals in Penang. An anonymous self-administered questionnaire in English was designed based on the elective and emergency procedures stated in the houseman training logbook. The questionnaire was distributed to the MOs from Penang State Health Department through the respective hospital directors and returned to Penang State Health Department on completion. The results showed that there was statistically significant difference between those who had undergone 12 months and 24 months as houseman in performing both elective and emergency procedures. MOs who had spent 24 months as housemen expressed higher confidence level than those who had only 12 months of experience. We also found that the confidence level was statistically and significantly influenced by visiting specialist and working together with cooperative experienced paramedics. © 2013 APJPH.

Relations among Affect, Abstinence Motivation and Confidence, and Daily Smoking Lapse Risk

PubMed Central

Minami, Haruka; Yeh, Vivian M.; Bold, Krysten W.; Chapman, Gretchen B.; McCarthy, Danielle E.

2016-01-01

Aims This study tested the hypothesis that changes in momentary affect, abstinence motivation, and confidence would predict lapse risk over the next 12–24 hours using Ecological Momentary Assessment (EMA) data from smokers attempting to quit smoking. Method 103 adult, daily, treatment-seeking smokers recorded their momentary affect, motivation to quit, abstinence confidence, and smoking behaviors in near real time with multiple EMA reports per day using electronic diaries post-quit. Results Multilevel models indicated that initial levels of negative affect were associated with smoking, even after controlling for earlier smoking status, and that short-term increases in negative affect predicted lapses up to 12, but not 24, hours later. Positive affect had significant effects on subsequent abstinence confidence, but not motivation to quit. High levels of motivation appeared to reduce increases in lapse risk that occur over hours while momentary changes in confidence did not predict lapse risk over 12 hours. Conclusion Negative affect had short-lived effects on lapse risk, whereas higher levels of motivation protected against the risk of lapsing that accumulates over hours. An increase in positive affect was associated with greater confidence to quit, but such changes in confidence did not reduce short-term lapse risk, contrary to expectations. Relations observed among affect, cognitions, and lapse seem to depend critically on the timing of assessments. PMID:24955665

Relationship between Teachers' ICT Competency, Confidence Level, and Satisfaction toward ICT Training Programmes: A Case Study among Postgraduate Students

ERIC Educational Resources Information Center

Tasir, Zaidatun; Abour, Khawla Mohammed El Amin; Halim, Noor Dayana Abd; Harun, Jamalludin

2012-01-01

There are three main variables that would make the integration of ICT tools as an easy process. Those three variables are teachers' ICT competency, teachers' confidence level in using ICT, and teachers' satisfaction on ICT training programmes. This study investigated the relationships among these three variables and measured the levels of the…

An Examination of Teacher's Occupational Burnout Levels in Terms of Organizational Confidence and Some Other Variables

ERIC Educational Resources Information Center

Caglar, Caglar

2011-01-01

An effort is made in this research to determine the correlations between primary school teachers' levels of confidence in their organization and their burnout levels and other variables. The research population is composed of teachers teaching in the primary schools located in the city center of Adiyaman in 2009-2010 academic year whereas the…

The relationship between fundamental movement skill proficiency and physical self-confidence among adolescents.

PubMed

McGrane, Bronagh; Belton, Sarahjane; Powell, Danielle; Issartel, Johann

2017-09-01

This study aims to assess fundamental movement skill (FMS) proficiency, physical self-confidence levels, and the relationship between these variables and gender differences among adolescents. Three hundred and ninety five adolescents aged 13.78 years (SD = ±1.2) from 20 schools were involved in this study. The Test of Gross Motor Development-2nd Edition (TGMD), TGMD-2 and Victorian Skills Manual were used to assess 15 FMS. Participants' physical self-confidence was also assessed using a valid skill-specific scale. A significant correlation was observed between FMS proficiency and physical self-confidence for females only (r = 0.305, P < 0.001). Males rated themselves as having significantly higher physical self-confidence levels than females (P = 0.001). Males scored significantly higher than females in FMS proficiency (P < 0.05), and the lowest physical self-confidence group were significantly less proficient at FMS than the medium (P < 0.001) and high physical self-confidence groups (P < 0.05). This information not only highlights those in need of assistance to develop their FMS but will also facilitate in the development of an intervention which aims to improve physical self-confidence and FMS proficiency.

COSMIC RADIATION AND TUBERCULOSIS. IV. INFLUENCE OF COSMIC RADIATION ON TUBERCULOSIS AT HIGH ALTITUDE (3,130 M) AND AT SEA-LEVEL

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

Ong, S.G.

1964-01-01

At high altitude (3,130 m) tuberculous mice exposed to cosmic radiation under 10 cm of lead showed significantly greater mean survival time and a significantly greater number of survivors than tuberculous mice exposed to direct cosmic radiation. Tuberculous mice exposed to cosmic radiation at high altitude under 10 cm of lead showed a significantly greater mean survival time than tuberculous mice kept at sea level, exposed to direct cosmic radiation, and to cosmic radiation under 1, 2, and 10 cm of lead. The correlation analysis shows that a decreas in lung lesions is associated with an increase in survival time.more » The decrease in lung lesions is associated with an enlargement of the spleen. At high altitude the female showed a significantly greater number of survivors than the male. At sea level no significant difference was observed. On the average the female showed a significantly greater number of survivors. The beneficial effect of daylight with ultraviolet light on tuberculous mice was manifested in a lower maximum of mortality and in a significant decrease of lung and spleen lesions. (auth)« less

THE EFFECT OF IRRADIATION ON REPRODUCTION BY THE HETEROGENETIC GENERATION OF STRONGYLOIDES PAPILLOSUS. I. IRRADIATION OF MALES AND FEMALES

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

Katz, F.F.

1960-06-01

Fourth and fifth stage male and third and fourth stage female S. papillosus were subjected to various doses of Co/sup 60/ gamma irradiation and cultured in vitro with controls of the opposite sex. Fewer offspring were produced in cultures containing irradiated males than in cultures of irradiated females. A single experiment involving several doses and one control gave a more linear picture of the effects of irradiation than individual experiments carried out at various times for different dose levels. In the former, larvae were obtained in cultures of nematodes exposed to 20 kr but not to 40, 60, 80 ormore » 100 kr; in the latter, larvae occurred in cultures of males irradiated at 42 kr and in cultures of females exposed to 50 kr but not at the higher levels employed. With increased doses of irradiation, there was a decrease in the percentage of eggs hatching. The dominant lethal effect was observed in cultures with males exposed to 20 kr and higher doses. In cultures with irradiated females, this phenomenon was observed at 40 kr and higher levels. (auth)« less

PM-1 NUCLEAR POWER PROGRAM. VOLUME II. PLANT PERFORMANCE STUDIES. Final Periodic Report, September 1, 1962 to December 31, 1962

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

None

1963-04-01

Data obtained during the performance testing of the PM-1 plant were compiled and evaluated. The plant powers an Air Defense Command radar station located at Sundance, Wyoming, and is required to supply extremely high-quality electrical power (minimum of frequency and voltage fluctuations) even during severe load transients. The data obtained were compiled into the following format: (1) operating requirements; (2) startup requirements; (3) plant as an energy source; (4) plant radiation levels and health physics; (5) plant instrumentation and control; (6) reactor characteristics; (7) primary system characteristics; (8) secondary system characteristics; and (9) malfunction reports. It was concluded from themore » data that the plant performance in general meets or exceeds specification. Transient and steady-state electrical fluctuations are well within specified limitations. Heat balance data for both the primary and secondary system agree reasonably well with design predictions. Radiation levels are below those anticipated. Coolant activity in the primary system is approximately at anticipated levels; secondary system coolant activity is negligible. The core life was re-estimated based on asbuilt core characteristics. A lifetime of 16.6 Mw-yr is predicted. (auth)« less

Confidence in communicating with patients with cancer mediates the relationship between rehabilitation therapists' autistic-like traits and perceived difficulty in communication.

PubMed

Hayashibara, Chinatsu; Inagaki, Masatoshi; Fujimori, Maiko; Higuchi, Yuji; Fujiwara, Masaki; Terada, Seishi; Okamura, Hitoshi; Uchitomi, Yosuke; Yamada, Norihito

2018-01-21

Recently, rehabilitation therapists have become involved in cancer rehabilitation; however, no communication skills training that increases the ability to provide emotional support for cancer patients has been developed for rehabilitation therapists. In addition, no study has examined associations between rehabilitation therapists' communication skills and their level of autistic-like traits (ALT), which are in-born characteristics including specific communication styles and difficulty communicating with patients. In this study, we aimed to investigate whether confidence in communicating with patients mitigates communication difficulties experienced by rehabilitation therapists who have high levels of ALT. Rehabilitation therapists who treat patients with cancer completed self-administered postal questionnaires anonymously. Scores were obtained on the Autism-Spectrum Quotient short form, confidence in communication, and communication difficulties. We used covariance structure analyses to test hypothetical models, and confirmed that confidence in communication mediates the relationship between ALT and perceived communication difficulties. Participants included 1,343 respondents (49.6%). Autism-Spectrum Quotient scores were positively correlated with communication difficulties (r = 0.16, p < 0.001). The correlation was mitigated by confidence in communication in the fit model. However, higher confidence in creating a supportive atmosphere was associated with more difficulty in communication (r = 0.16, p < 0.001). Significance of results Communication difficulty was linked to rehabilitation therapists' ALTs. By increasing confidence in areas of communication other than creation of a supportive atmosphere, ALT-related difficulties in communication may be ameliorated. Confidence to create supportive environments correlated positively with difficulty. Communication skills training to increase confidence in communication for rehabilitation therapists should be developed with vigilance regarding ALT levels.

Patient confidence and quality of life in idiopathic pulmonary fibrosis and sarcoidosis.

PubMed

Kotecha, Jalpa; Atkins, Christopher; Wilson, Andrew

2016-12-23

Idiopathic pulmonary fibrosis (IPF) and sarcoidosis impact significantly on health-related quality of life (HRQOL). There are few studies on the impact of patient confidence on HRQOL in these conditions. 1. To investigate whether patient confidence is associated with HRQOL, anxiety, depression, dyspnoea or fatigue. 2. To assess if patient confidence is associated with inpatient admissions, access to community healthcare and, for IPF patients, mortality and disease severity. Study participants self-completed seven questionnaires: Hospital Anxiety and Depression Scale, EuroQol 5D (EQ5D), King's Brief Interstitial Lung Disease questionnaire, St George's Respiratory Questionnaire, MRC dyspnoea scale, Fatigue Assessment Scale and a non-validated questionnaire assessing patient confidence, symptom duration and access to community healthcare. Lung function and follow-up data were collected from hospital electronic databases. Spearman's rank correlation coefficients were calculated to assess for correlation between patient confidence, questionnaire variables and inpatient admissions. Chi-square tests were performed to assess for association between patient confidence, mortality and disease severity. 75 IPF patients and 69 sarcoidosis patients were recruited to the study. Patient confidence in IPF was significantly negatively correlated with depression and fatigue, and significantly positively correlated with EQ5D scores, but not healthcare outcomes. No associations were found between confidence and any of the variables assessed in sarcoidosis. Lower levels of confidence in IPF patients are associated with higher levels of depression and fatigue and worse HRQOL. Efforts should be made to improve patient confidence to assess the impact on HRQOL.

ESTIMATION OF RADIOACTIVE CALCIUM-45 BY LIQUID SCINTILLATION COUNTING

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

Lutwak, L.

1959-03-01

A liquid sclntillation counting method is developed for determining radioactive calcium-45 in biological materials. The calcium-45 is extracted, concentrated, and dissolved in absolute ethyl alcohol to which is added 0.4% diphenyloxazol in toluene. Counting efficiency is about 65 percent with standard deviation of the J-57 engin 7.36 percent. (auth)

PROBLEMS OF RADIOLOGICAL PROTECTION IN FLAW DETECTION (in Polish)

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

Domanus, J.; Wolski, M.

1962-01-01

All industrial flaw detection laboratories are covered, with respect to their radiological protection, by the supervision of the Inst. of Electrotechnics. A discussion is given of the results of this action, especially the cases of exceeding the admissible doses. The analysis of endangerment by radiation of employees of flaw detection laboratories is given. (auth)

WORK SAFETY CONDITIONS WITH CLOSED RADIATION SOURCES (in Polish)

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

Brosziewicz, R.

1963-01-01

A discussion is presented of principles of radiological protection observed in the Radiation Chemistry Dept. of the Nuclear Research Inst., during operation of large sources of ionizing radiation. It has been revealed that a properly designed servicing system of these sources ensures full protection of personnel even with not fully protected sources. (auth)

Hotel Employees' Japanese Language Experiences: Implications and Suggestions.

ERIC Educational Resources Information Center

Makita-Discekici, Yasuko

1998-01-01

Analyzes the Japanese language learning experiences of 13 hotel employees in Guam. Results of the study present implications and suggestions for a Japanese language program for the hotel industry. The project began as a result of hotel employees frustrations when they were unable to communicate effectively with their Japanese guests. (Auth/JL)

CRITICAL EXPERIMENT TANK (CET) REACTOR HAZARDS SUMMARY

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

Becar, N.J.; Kunze, J.F.; Pincock, G..D.

1961-03-31

The Critical Experiment Tank (CET) reactor assembly, the associated systems, and the Low Power Test Facility in which the reactor is to be operated are described. An evaluation and summary of the hazards associated with the operation of the CET reactor in the LPTF at the ldsho Test Station are also presented. (auth)

DETECTION OF $beta$ ACTIVITIES ON A THIN FILM CHROMATOGRAM WITH A GELATINIZED SCINTILLATOR (in French)

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

Roucayrol, J.; Taillandier, P.

1963-05-27

In order to detect the BETA activities on a thin-film chromatogram, it is expedient to impregnate it with a gelatinized scintillator. The fluorescence photons are detected by a photomultiplier across a slit'' above which the glass support of the chromatogram is removed. (tr-auth)

Armor of cermet with metal therein increasing with depth

DOEpatents

Wilkins, M.L.; Holt, A.C.; Cline, C.F.; Foreschner, K.E.

1973-07-01

The system described consists of a ceramic matrix having a gradient of fine ductile metallic particles dispersed therein in an amount of from 0.0%, commencing at the front or impact surface of the armor, to about 2 to 15% by volume along the interface to the back of the system. (auth)

PERIVASCULAR EXTRAVASATION OF THORIUM DIOXIDE PREPARATION. TWENTY-ONE-YEAR FOLLOW-UP

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

Germon, P.; Howard, J.M.; James, P.M.

The course of a patient is described with a 21-yr followup after the extravasation of ThO/sub 2/ preparation (Thorotrast) into the soft tissue of the arm. The resultant concentration of the Th in the spleen led repeatedly to the erroneous radiographic iuterpretation of splenic calcification. (auth)

Electron multiplier-ion detector system

DOEpatents

Dietz, L.A.

1975-08-01

This patent relates to an improved ion detector for use in mass spectrometers for pulse counting signal ions which may have a positive or a negative charge. The invention combines a novel electron multiplier with a scintillator type of ion detector. It is a high vacuum, high voltage device intended for use in ion microprobe mass spectrometers. (auth)

APPLICATION OF THE CLASSICAL SELFCORRELATION FUNCTION TO DETERMINE THE SLOW NEUTRON SCATTERING CROSS-SECTION OF FREE MOLECULES

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

Parlinski, K.

1962-06-01

A classical selfcorrelation function is found for an atom in the molecule by considering the translation of the free molecule, its rotation and oscillation. The Krieger-Nelkin formula for the differential cross section of incoherent neutron scattering by molecules is derived from the correlation. (auth)

Diets of black-tailed hares on the Hanford Reservation

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

Uresk, D.W.; Cline, J.F.; Rickard, W.H.

1975-04-01

A fecal pellet analyses showed that black-tailed hares (jackrabbits) were selective in plants chosen as food. The most abundant herbaceous plant, cheatgrass, was not found in the pellets. Sagebrush and bitterbrush, woody plants, were not an important part of the hares' diet. Forbs, rabbitbrush, and certain grass species were preferred foods. (auth)

International and Immigrant Students in Community Colleges: Who They Are and How To Help Them.

ERIC Educational Resources Information Center

Peterman, Dana

2003-01-01

Provides resources to help counselors assess, understand, and provide appropriate services for international and immigrant student populations in community colleges. States that, because there is so much variation among the population, the adjustment process is difficult and requires administrative intervention. (Contains 11 citations.) (AUTH/NB)

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

Barnett, C.F.; Gauster, W.B.; Ray, J.A.

A graphical compilation is presented of atomic and molecular cross sections of interest to controlled thermonuclear research. The cross sections are shown, as a function of energy, for collision processes involving molecular ion dissociation, charge exchange, excitation, ionization, photoionization, scattering, energy loss, and recombination. Pertinent nuclear cross sections are also included. A bibliography is given covering the literature since 1950. (auth)

SEPARATION OF SOME RARE EARTHS BY REVERSED-PHASE PARTITION CHROMATOGRAPHY. Report No. 129/V; Rozdzielenie Niektorych Ziem Rzadkich za Pomoca Chromatografii Podzialowej z Odwroconymi Fazami

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

Siekierski, S.; Fidelis, I.

1960-01-01

The reversed phase partition chromatography was applied to the separation of small amounts of some rare earths. As a stationary phase TBP was used. and the elution was carried out with concentrated HNO/sub 3/. (auth)

A Short Take on Protecting Lear in a Storm.

ERIC Educational Resources Information Center

Elliot, Cynthia

2001-01-01

Recounts author's experience in teaching 'King Lear' to her community college students. States that many students denounced Shakespeare's work as having little relevance to contemporary society. Argues that the author's plays and poems are relevant and timeless, and that one should "reason not the need" for reading his work. (AUTH/NB)

EFFECTS OF HEAVY WATER ON THE DEVELOPMENT OF POLIO VIRUS AS A FUNCTION OF TEMPERATURE (in French)

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

Lwoff, A.; Lwoff, M.

1960-12-19

Heavy water medifies the speed of development and the infectious particle yield of the polio virus. These two effects are dependent on four factors: the temperature, the heavy water concentration, the moment when it is used, and the genotype of the virus stock. (tr-auth)

Identification of sulphur volatiles and GC-olfactometry aroma profiling in two fresh tomato cultivars

USDA-ARS?s Scientific Manuscript database

Ten sulphur volatiles were observed in two Florida tomato cultivars (‘Tasti-Lee’ and ‘FL 47’) harvested at three maturity stages (breaker, turning, and pink) using gas chromatography with a pulsed flame photometric detector (GC-PFPD). Eight PFPD peaks were identified using retention values from auth...

RADIOACTIVE WASTE PROCESSING AND DISPOSAL: A BIBLIOGRAPHY OF SELECTED REPORT LITERATURE

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

Voress, H.E.; Davis, T.F.; Hubbard, T.N. Jr.

1958-06-01

An annotated bibliography is presented containing 698 references to unclassifled reports on currert and proposed ranioactive waste processing and disposal practices for solutions from radiochemical processing plants and laboratories, decontamination of surfaces, air cleaning, and other related subjects. Author, corporate author, subject, and report nuunber indexes are included. (auth)

RADIOISOTOPES IN MEDICINE AND HUMAN PHYSIOLOGY. A Selected List of References

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

McCormick, J.A. comp.

1958-08-01

This bibliography contains 2862 references on uses of radioisotopes in diagnostic medicine, therapeutic medicine, clinical research, human physiology, general medical research, and immunology. The references were taken from the 1948 to 1956 open literature. A list of the journals from which the references were selected and an author index are included. (auth)'

OSTEOLYSIS FOLLOWING RADIATION INDUCED FRACTURE OF THE CLAVICLE (in German)

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

Kolar, J.

1961-04-01

A case is described in which osteolysis of the lateral half of the clavicle was observed following a radiation induced fracture. No previous observation of a similar complication following irradiation of bone has been described. The phenomenon may be compared with the spontaneous absorption of bone following fractures in this region. (auth)

ON THE SO-CALLED LATE OR THERAPEUTICAL RADIONECROSIS (in Italian)

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

Piemonte, M.

1960-01-01

Anatomical and clinical characteristics of the alteration known as late or therapeutical necrosis are reviewed and the most characteristical aspects of this alteration in various anatomical sites are discussed. Radionecroses of the tongue, of the palate, of the skin, of the uterus cervix, of the vulva, and of the penis are illustrated. (auth)

Measurement of geomagnetic cutoff rigidities and particle fluxes below geomagnetic cutoff near Palestine, Texas

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

Pennypacker, C.R.; Smoot, G.F.; Buffington, A.

1973-04-01

A high-statistics magnetic spectrometer measurement of the geomagnetic cutoff rigidity and related effects at Palestine, Texas is reported. The effective cutoffs observed are in agreement with computer-calculated cutoffs. Measured spectra of albedo and atmospheric secondary particles that come below geomagnetic cutoff are also reported. (auth)

Providing responsive nursing care to new mothers with high and low confidence.

PubMed

Mantha, Shannon; Davies, Barbara; Moyer, Alwyn; Crowe, Katherine

2008-01-01

To describe new mothers' experiences with family-centered maternity care in relation to their confidence level and to determine how care could have been more responsive to their needs. Using data from a prospective Canadian survey of 596 postpartum women, a subsample of women with low and high confidence (N = 74) was selected. Data were analyzed using descriptive statistics and content analysis. Women with both high and low confidence expressed negative experiences with similar frequency (n = 47/74, 64%). Women wanted more nursing support for breastfeeding and postpartum teaching and education. Women who reported a language other than English or French as their first language were significantly less confident than English- and French-speaking women (p < .05). A multilevel framework about family-centered care is presented for healthcare providers in prenatal, labor and birth, and postpartum care. It is recommended that nurses ask new mothers about their confidence level and give special consideration to cultural background in order to provide supportive care in hospital and community settings.

High-fidelity nursing simulation: impact on student self-confidence and clinical competence.

PubMed

Blum, Cynthia A; Borglund, Susan; Parcells, Dax

2010-01-01

Development of safe nursing practice in entry-level nursing students requires special consideration from nurse educators. The paucity of data supporting high-fidelity patient simulation effectiveness in this population informed the development of a quasi-experimental, quantitative study of the relationship between simulation and student self-confidence and clinical competence. Moreover, the study reports a novel approach to measuring self-confidence and competence of entry-level nursing students. Fifty-three baccalaureate students, enrolled in either a traditional or simulation-enhanced laboratory, participated during their first clinical rotation. Student self-confidence and faculty perception of student clinical competence were measured using selected scale items of the Lasater Clinical Judgment Rubric. The results indicated an overall improvement in self-confidence and competence across the semester, however, simulation did not significantly enhance these caring attributes. The study highlights the need for further examination of teaching strategies developed to promote the transfer of self-confidence and competence from the laboratory to the clinical setting.

Confidence Level Based Approach to Total Dose Specification for Spacecraft Electronics

NASA Technical Reports Server (NTRS)

Xapsos, M. A.; Stauffer, C.; Phan, A.; McClure, S. S.; Ladbury, R. L.; Pellish, J. A.; Campola, M. J.; Label, K. A.

2017-01-01

A confidence level based approach to total dose radiation hardness assurance is presented for spacecraft electronics. It is applicable to both ionizing and displacement damage dose. Results are compared to the traditional approach that uses radiation design margin and advantages of the new approach are discussed.

Allied restorative functions training in Minnesota: a case study.

PubMed

Cooper, Brigette R; Monson, Angela L

2007-03-01

In 2003, the Minnesota Dental Practice Act was modified to allow dental hygienists and assistants to place amalgam, composite, glass ionomer, and stainless steel crowns. The concept of utilizing allied professionals to perform expanded functions has been suggested as a way to increase access to care and productivity. A continuing education course was offered to provide required certification for interested dental practitioners (N=12). The objectives of this study were to examine confidence levels and effectiveness of the continuing education program. Pre- and post-course restorative content knowledge, along with confidence levels in knowledge, technical skills, and the ability to implement skills were measured. A matched pairs t-test found a significant increase in participants' restorative content knowledge (p<.001). Wilcoxen signed rank tests revealed an increase in confidence in all content knowledge (p<.01) and technical skill (p<.05) categories. Participants did not significantly increase in confidence to implement restorative functions skills into practice (p<.7). Interview data revealed that participants remain unclear about ways to incorporate restorative functions into the schedule. Findings in this case study suggest that content knowledge and confidence levels increase following completion of a restorative functions course. To improve education and training, research is needed to identify why participants' confidence in implementation did not increase.

The role of students’ self-confidence in relation with swimming routines, frequency, and tutor in swimming class

NASA Astrophysics Data System (ADS)

Hartoto, S.; Khory, F. D.; Prakoso, B. B.

2018-01-01

It is compulsory for prospective physical education teachers to have the ability to perform swimming. The average of students’ passing in swimming class has reached 72%. Most students who failed to pass the class are those who have had aquaphobia, the condition in which one failed to perceive a situation in a positive and objective, some of which are hard to detect. This perception may come from past experience and it could diminish students’ confidence. Furthermore, the lack of confidence in students may cause unsatisfactory learning results. Therefore it is critical for the teachers to have a comprehensive knowledge of their students’ past experience in formulating a lesson. This research used descriptive qualitative approach. The aim of this article is to investigate the correlation between students’ confidence level and swimming routines, frequency, and tutors in order to succeed swimming class. This article will attempt to describe the results of a research conducted to 139 students of Department of Sport Education Universitas Negeri Surabaya as prospective physical education teachers in Indonesia who took swimming class. Past experience and confidence level are measured by a questionnaire. The results of the research show that students who have a higher level of confidence are those who follow practice routines with adequate frequency and helped by a compatible tutor.

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

Beninson, D.; Ramos, E.; Touzet, R.

The results of measurements of {sup 90}Sr and natural Sr in the bones of children and the food products of the corresponding diets are presented and discussed. The data show that the levels of {sup 90}Sr/Ca in the total diet are very close to that of milk for children during the first year of life. Typical incorporations in very small children, during the last three years in Argentina, were of the order of several pC of {sup 90}Sr and about a mg of natural Sr per day. Results of measurements of {sup 90}Sr in bone samples of distinct age groups,more » for which detailed information on the dietetic history can be obtained, are presented. The typical levels were of the orders of one pC/g Ca. Natural strontium in the bone appears to increase slowly with age. The factors of discrimination were estimated for various age groups, using a simple model and data on the diet and bones. The evaluations of {sup 90}Sr and natural Sr agree adequately and suggest that babies discriminate less between the strontiums than older children and adults. (tr-auth)« less

THE EFFECTS OF REACTOR RADIATION ON THE ELECTRICAL PROPERTIES OF ELECTRONIC COMPONENTS. PART VII. RESISTORS AND VACUUM TUBES

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

Palmer, E.E.; Howell, D.

1961-06-01

Several types of vacuum tubes and resistors were irradiated with the Ground Test Reactor for a period of 100 hours at a power level of 1 megawatt. Data were taken on the components before, during, and after the irradiation. The vacuum tubes received a maximum radiation exposure of 8.64 x 10/sup 1//sup 5/ nf/ cm/sup 2/ and 3.9 x 10/sup 1//sup 0/ ergs/gm(C). A small increase in the average plate current was noted for all tube types. Pentodes subjected to the high-flunx field exhibited the largest percent change ( approx equal 6%) while dicdes remained relatively unaffected-at these radiation levels.more » The resistors received a maximum radiation exposure of 1.4 x 10/sup 1//sup 6/ nf/cm/sup 2/ and 6.2 x 10/ sup 1//sup 0/ ergs/gm(C). The degree of damage was dependent upon the material and type of construetion of the individual resistor types. The maximum observed change ( approx equal 6%) occurred in fixed-composition resistors. (auth)« less

A longitudinal study of well-being, confidence and competence in junior doctors and the impact of emergency medicine placements.

PubMed

Mason, Suzanne; O'Keeffe, Colin; Carter, Angela; Stride, Chris

2016-02-01

To measure levels of, and change in junior doctor well-being, confidence and self-reported competence over their second postgraduate training year and the impact of emergency department (ED) placements on these outcomes. A longitudinal study using an online survey administered at four time points (2010-2011). 28 Acute Hospital Trusts, drawn from nine participating Postgraduate Deaneries in England. Junior doctors who had a placement in an ED as part of their second postgraduate training year. Levels of anxiety, depression, motivation, job satisfaction, confidence and self-reported competence, collected at four time points spread over the period of the doctor's second training year (F2). 217 junior doctors were recruited to the study. Over the year there was a significant increase in their overall job satisfaction, confidence and self-reported competence. Junior doctors also reported significantly increased levels of motivation and anxiety, and significantly decreased levels of extrinsic job satisfaction when working in ED compared with other specialties. There were also significant increases in both junior doctor confidence and self-reported competence after their placement in ED relative to other specialties. While elements of junior doctor well-being worsened in their ED placement compared with their time spent in other specialties, the increased levels of anxiety and reduced extrinsic job satisfaction were within the normal range for other healthcare workers. These deficits were also balanced by greater improvements in motivation, confidence in managing common acute clinical conditions and perceived competence in performing acute procedures compared with benefits offered by placements in other specialties. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

A longitudinal study of well-being, confidence and competence in junior doctors and the impact of emergency medicine placements

PubMed Central

Mason, Suzanne; O'Keeffe, Colin; Carter, Angela; Stride, Chris

2016-01-01

Objectives To measure levels of, and change in junior doctor well-being, confidence and self-reported competence over their second postgraduate training year and the impact of emergency department (ED) placements on these outcomes. Design A longitudinal study using an online survey administered at four time points (2010–2011). Setting 28 Acute Hospital Trusts, drawn from nine participating Postgraduate Deaneries in England. Participants Junior doctors who had a placement in an ED as part of their second postgraduate training year. Main outcome measures Levels of anxiety, depression, motivation, job satisfaction, confidence and self-reported competence, collected at four time points spread over the period of the doctor's second training year (F2). Results 217 junior doctors were recruited to the study. Over the year there was a significant increase in their overall job satisfaction, confidence and self-reported competence. Junior doctors also reported significantly increased levels of motivation and anxiety, and significantly decreased levels of extrinsic job satisfaction when working in ED compared with other specialties. There were also significant increases in both junior doctor confidence and self-reported competence after their placement in ED relative to other specialties. Conclusions While elements of junior doctor well-being worsened in their ED placement compared with their time spent in other specialties, the increased levels of anxiety and reduced extrinsic job satisfaction were within the normal range for other healthcare workers. These deficits were also balanced by greater improvements in motivation, confidence in managing common acute clinical conditions and perceived competence in performing acute procedures compared with benefits offered by placements in other specialties. PMID:26338523

Evaluating the Effectiveness of the General Surgery Intern Boot Camp.

PubMed

Schoolfield, Clint S; Samra, Navdeep; Kim, Roger H; Shi, Runhua; Zhang, Wayne W; Tan, Tze-Woei

2016-03-01

The aim of our study is to evaluate the effectiveness of newly implemented general surgery intern boot camp. A 2-day didactic and skills-based intern boot camp was implemented before the start of clinical duties. Participants who did not attend all boot camp activities and had prior postgraduate training were excluded. A survey utilizing a 5-point Likert scale scoring system was used to assess the participants' confidence to perform intern-level tasks before and after the boot camp. Subgroup analyses were performed comparing changes in confidence among graduates from home institution versus others and general surgery versus other subspecialties. In the analysis, 21 participants over two years were included. Among them, 7 were graduates from home institution (4 general surgery, 3 subspecialty) and 14 were from other institutions (6 general surgery and 8 subspecialty). There were significant increases in overall confidence levels (pre = 2.79 vs post = 3.43, P < 0.001) after the boot camp. Additionally, there were improvements for all subcategories including medical knowledge (2.65 vs 3.36, P < 0.001), technical skill (3.02 vs 3.51, P < 0.001), interpersonal skills and communication (3.04 vs 3.53, P = 0.001), and practice-based learning (2.65 vs 3.41, P = 0.001). There was an improvement in confidence level for both home institution graduates (2.89 vs 3.53, P = 0.022) and other graduates (2.74 vs 3.34, P < 0.001). Similarly, participants from general surgery (2.78 vs 3.46, P = 0.001) and other specialties (2.74 vs 3.34, P < 0.001) reported significant improvement in confidence. General surgery intern boot camp before the start of official rotation is effective in improving confidence level in performing level-appropriate tasks of the incoming new interns.

Analysis of (n,2n) cross-section measurements for nuclei up to mass 238

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

Davey, W.G.; Goin, R.W.; Ross, J.R.

All suitable measurements of the energy dependence of (n,2n) cross sections of all isotopes up to mass 238 have been analyzed. The objectives were to display the quality of the measured data for each isotope and to examine the systematic dependence of the (n,2n) cross section upon N, Z, and A. Graphs and tables are presented of the ratio of the asymptotic (n,2n) and nonelastic cross section to the neutron-asymmetry parameter (N--Z)/A. Similar data are presented for the derived nuclear temperature, T, and level-density parameter, $alpha$, as a function of N, Z, and A. This analysis of the results ofmore » over 145 experiments on 61 isotopes is essentially a complete review of the current status of (n,2n) cross-section measurements. (auth)« less

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

Walborn, N.R.

The blue-shifted absorption component of the P-Cygni profile at He I lambda 5876 in HD 152408 (O8: Iafpe) has been found to be extremely broad, extending -1000 km sec$sup -1$ from the emission maximum. This unusual profile is probably due to overpopulation of the lower level of lambda 5876, which permits it to form throughout a greater extent of the expanding atmosphere than most other lines. This observation confirms Hutchings' identification of very large velocities in the blue-violet spectrum of HD 152408, and in particular his interpretation of a similar feature at He I lambda 3889, which is metastable. Themore » lambda 5876 profile in HD 152408 is compared to those in the similar but less extreme P-Cygni star HD 151804 (O8 Iaf), and in the Wolf-Rayet star HD 151932 (WN7-A). The similarity between the absorption components in HD 152408 and the WN star is striking. (auth)« less

COMPARISON OF EFFECTS OF DEUTERIUM OXIDE AND X-RAY IRRADIATION ON MULTIPLICATION OF POLIOVIRUS

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

Kritchevsky, D.; Manson, L.A.; Hartzell, R.W. Jr.

1963-01-01

An attenuated strain of poliomyelitis virus (CHAT) will not grow in monkey kidney cells at 40 un. Concent 85% C. When deuterium oxide (25 to 40%) is present in the medium, replication of CHAT virus will take place at 40 un. Concent 85% C. Since both deuterium oxide treatment and irradiation with x rays yield giant cells, the 2 treatments have been compared for their ability to support the growth of CHAT poliovirus at 40 un. Concent 85% C. At several levels of x irradiation, monkey kidney cells will not support the growth of CHAT virus at 40 un. Concentmore » 85% C. When D/sub 2/O is added to he medium of the x- irradiated cells at 40 un. Concent 85% C, replication of CHAT virus is observed. The effect is not due to cell size or number. (auth)« less

Effect of radiation on metabolism of selected minerals in cattle

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

Sasser, L.B.; Wade, L. Jr.; Bell, M.C.

1974-01-01

Zinc, Cu, Ca, Mg, and Fe contents of plasma and/or erythrocytes of steers were studied following exposure of the steers to either whole-body gamma irradiation, BETA irradiation of the gastrointestinal tract, BETA irradiation of the skin, or all combinations of the above. Gastrointestinal (GI) irradiation reduced plasma Zn concentrations 1, 2, and 3 weeks after irradiation, but no detectable change occurred in the erythrocyte concentration of stable Zn. The uptake of /sup 65/Zn by erythrocytes from control steers averaged about 5%; whereas the uptakes of the GI- and skin-irradiated steers exceeded l0%. Hypoferremia and hypercupremia accompanied the injury and infectionmore » produced by GI and skin irradiation. The decline of plasma Ca and Mg levels following GI irradiation appeared to be the result of radiation-induced anorexia, as control animals with a restricted feed intake had a similar reduction in plasma Ca and Mg. (auth)« less

EFFECT OF MASSIVE NEUTRON EXPOSURE ON THE DISTORTION OF REACTOR GRAPHITE

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

Helm, J.W.; Davidson, J.M.

1963-05-28

Distortion of reactor-grade graphites was studied at varying neutron exposures ranging up to 14 x 10/sup 21/ neutrons per cm/sup 2/ (nvt)/sup */ at temperatures of irradiation ranging from 425 to 800 deg C. This exposure level corresponds to approximately 100,000 megawatt days per adjacent ton of fuel (Mwd/ At) in a graphite-moderated reactor. A conventionalcoke graphite, CSF, and two needle-coke graphites, NC-7 and NC-8, were studied. At all temperatures of irradiation the contraction rate of the samples cut parallel to the extrusion axis increased with increasing neutron exposure. For parallel samples the needle- coke graphites and the CSF graphitemore » contracted approximately the same amount. In the transverse direction the rate of cortraction at the higher irradiation temperntures appeared to be decreasing. Volume contractions derived from the linear contractions are discussed. (auth)« less

LEUKOPENIA IN DEEP X-RAY THERAPY. CONTRIBUTION TO SOME QUESTIONS OF ITS CONDITIONS OR ORIGIN, ITS THERAPY, AND PROPHYLAXIS (in German)

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

Becker, H.; Becker, C.

1963-03-01

Of the 1776 patients, treated with deep x-ray therapy because of malignant tumors that were examined, 8% were found to be leukopenic. Age, sex, and preceding radiation did not have dispositional influence on occurrence of leukopenia. Low initial vaiues of leukocytes at the start of radiation, irradiation of a large area of the trunk (trunk volume -dose), level of irradiating dose, and temporal dis tribution do have an assured importance. In the first place, occurrence of leukopenia is related to direct radiation damage to the bone-marrow, other causes are radiogenic leukotoxins and an increased destruction of leukocytes by diapedesis. Themore » only effective therapy for radiogenic leukopenia was interruption or scattering of the radiation. ACTH- treatment can increase the leukocytes temporarily. Prophylaxis of leukopenia by vitamin B/sub 12/ was not successful. (auth)« less

Emotional Confidants in Ethnic Communities: Social Network Analysis of Korean American Older Adults

PubMed Central

Jang, Yuri; Kim, Kyungmin; Park, Nan Sook; Chiriboga, David A.

2017-01-01

Objective Ethnic communities often serve as the primary source of emotional support for older immigrants. This study aims to identify individuals who are more likely to be nominated as emotional confidants by age peers in the ethnic community and to examine factors contributing to the likelihood of being a more frequently endorsed confidant. Method Data were drawn from a survey with 675 older Korean Americans. Using the name-generator approach in Social Network Analysis (SNA), participants were asked to list the names of three emotional confidants among age peers in the community. Results A higher level of popularity (i.e., in-degree centrality) was predicted by male gender, advanced education, lower functional disability, fewer symptoms of depression, and higher levels of participation in social activities. Discussion: Our findings suggest the value of SNA as a means of identifying the key emotional confidants in the community and utilizing them in community-based interventions. PMID:26082133

Test of the cosmic transparency with the standard candles and the standard ruler

NASA Astrophysics Data System (ADS)

Chen, Jun

In this paper, the cosmic transparency is constrained by using the latest baryon acoustic oscillation (BAO) data and the type Ia supernova data with a model-independent method. We find that a transparent universe is consistent with observational data at the 1σ confidence level, except for the case of BAO+ Union 2.1 without the systematic errors where a transparent universe is favored only at the 2σ confidence level. To investigate the effect of the uncertainty of the Hubble constant on the test of the cosmic opacity, we assume h to be a free parameter and obtain that the observations favor a transparent universe at the 1σ confidence level.

Level of confidence in venepuncture and knowledge in determining causes of blood sample haemolysis among clinical staff and phlebotomists.

PubMed

Makhumula-Nkhoma, Nellie; Whittaker, Vicki; McSherry, Robert

2015-02-01

To investigate the association between confidence level in venepuncture and knowledge in determining causes of blood sample haemolysis among clinical staff and phlebotomists. Various collection methods are used to perform venepuncture, also called phlebotomy, the act of drawing blood from a patient using a needle. The collection method used has an impact on preanalytical blood sample haemolysis. Haemolysis is the breakdown of red blood cells, which makes the sample unsuitable. Despite available evidence on the common causes, extensive literature search showed a lack of published evidence on the association of haemolysis with staff confidence and knowledge. A quantitative primary research design using survey method. A purposive sample of 290 clinical staff and phlebotomists conducting venepuncture in one North England hospital participated in this quantitative survey. A three-section web-based questionnaire comprising demographic profile, confidence and competence levels, and knowledge sections was used to collect data in 2012. The chi-squared test for independence was used to compare the distribution of responses for categorical data. anova was used to determine mean difference in the knowledge scores of staff with different confidence levels. Almost 25% clinical staff and phlebotomists participated in the survey. There was an increase in confidence at the last venepuncture among staff of all categories. While doctors' scores were higher compared with healthcare assistants', p ≤ 0·001, nurses' were of wide range and lowest. There was no statistically significant difference (at the 5% level) in the total knowledge scores and confidence level at the last venepuncture F(2,4·690) = 1·67, p = 0·31 among staff of all categories. Evidence-based measures are required to boost staff knowledge base of preanalytical blood sample haemolysis for standardised and quality service. Monitoring and evaluation of the training, conducting and monitoring haemolysis rate are equally crucial. Although the hospital is succeeding in providing regular training in venepuncture, this is only one aspect of quality. The process and outcome also need interventions. © 2014 John Wiley & Sons Ltd.

Determining Normal-Distribution Tolerance Bounds Graphically

NASA Technical Reports Server (NTRS)

Mezzacappa, M. A.

1983-01-01

Graphical method requires calculations and table lookup. Distribution established from only three points: mean upper and lower confidence bounds and lower confidence bound of standard deviation. Method requires only few calculations with simple equations. Graphical procedure establishes best-fit line for measured data and bounds for selected confidence level and any distribution percentile.

Confidence and Competence with Mathematical Procedures

ERIC Educational Resources Information Center

Foster, Colin

2016-01-01

Confidence assessment (CA), in which students state alongside each of their answers a confidence level expressing how certain they are, has been employed successfully within higher education. However, it has not been widely explored with school pupils. This study examined how school mathematics pupils (N?=?345) in five different secondary schools…

Written Language Disorders: Speech-Language Pathologists' Training, Knowledge, and Confidence

ERIC Educational Resources Information Center

Blood, Gordon W.; Mamett, Callie; Gordon, Rebecca; Blood, Ingrid M.

2010-01-01

Purpose: This study examined speech-language pathologists' (SLPs') perceptions of their (a) educational and clinical training in evaluating and treating written language disorders, (b) knowledge bases in this area, (c) sources of knowledge about written language disorders, (d) confidence levels, and (e) predictors of confidence in working with…

Confidence Scoring of Speaking Performance: How Does Fuzziness become Exact?

ERIC Educational Resources Information Center

Jin, Tan; Mak, Barley; Zhou, Pei

2012-01-01

The fuzziness of assessing second language speaking performance raises two difficulties in scoring speaking performance: "indistinction between adjacent levels" and "overlap between scales". To address these two problems, this article proposes a new approach, "confidence scoring", to deal with such fuzziness, leading to "confidence" scores between…

The Entry-Level System

ERIC Educational Resources Information Center

Pepper, Mark

2012-01-01

Assessment of performance, when national standards are required, has to be sustained by confidence. Confidence in the learner that they are engaged in learning that will provide them with a qualification that is worthwhile, and the confidence of the end user that the assessment is rigorous, equitable institution to institution, and accurate.…

Interpretation of Confidence Interval Facing the Conflict

ERIC Educational Resources Information Center

Andrade, Luisa; Fernández, Felipe

2016-01-01

As literature has reported, it is usual that university students in statistics courses, and even statistics teachers, interpret the confidence level associated with a confidence interval as the probability that the parameter value will be between the lower and upper interval limits. To confront this misconception, class activities have been…

Cosmological parameter estimation from CMB and X-ray cluster after Planck

NASA Astrophysics Data System (ADS)

Hu, Jian-Wei; Cai, Rong-Gen; Guo, Zong-Kuan; Hu, Bin

2014-05-01

We investigate constraints on cosmological parameters in three 8-parameter models with the summed neutrino mass as a free parameter, by a joint analysis of CCCP X-ray cluster data, the newly released Planck CMB data as well as some external data sets including baryon acoustic oscillation measurements from the 6dFGS, SDSS DR7 and BOSS DR9 surveys, and Hubble Space Telescope H0 measurement. We find that the combined data strongly favor a non-zero neutrino masses at more than 3σ confidence level in these non-vanilla models. Allowing the CMB lensing amplitude AL to vary, we find AL > 1 at 3σ confidence level. For dark energy with a constant equation of state w, we obtain w < -1 at 3σ confidence level. The estimate of the matter power spectrum amplitude σ8 is discrepant with the Planck value at 2σ confidence level, which reflects some tension between X-ray cluster data and Planck data in these non-vanilla models. The tension can be alleviated by adding a 9% systematic shift in the cluster mass function.

Standard interface files and procedures for reactor physics codes, version III

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

Carmichael, B.M.

Standards and procedures for promoting the exchange of reactor physics codes are updated to Version-III status. Standards covering program structure, interface files, file handling subroutines, and card input format are included. The implementation status of the standards in codes and the extension of the standards to new code areas are summarized. (15 references) (auth)

PLUTONIUM AND ITS METALLURGY. A STAGE IN ITS DEVELOPMENT: THE INTERNATIONAL CONFERENCE ON THE METALLURGY OF PLUTONIUM (GRENOBLE, APRIL 1960) (in French)

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

Grison, E.

1961-01-01

A discussion is given on physical properties of plutonium, allotropic variations; kinetics of transformation; electrica; and magnetic properties; and electronic structure of the external layers of the atom. Plutonium can be used only as nuclear fuel; it is very expensive and toxic. (auth)

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

Levenson, S.M.; Warren, R.D.; Richman, S.D.

The potentially fatal interstitial pneumonia of Pneumocystis carinii is a frequent opportunistic invader of patients treated for malignancy with immunosuppressive and cytotoxic agents. Generalized Ga-67 pulmonary localization which is markedly disproportionate to the clinical and radiographic findings has led to earlier diagnoses by open lung biopsy in this setting. The potential usefulness of gallium scintigraphy in patients with suspected P. carinii pneumonia is presented. (auth)

Problem of the Optical Model for Deuterons; ZAGADNIENIA MODELU OPTYCZNEGO DLA DEUTERONOW

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

Grotowski, K.

1963-01-01

Problems concerning parameters of the optical potential for deuterons are presented. Total cross-sections for the interaction of deuterons with nuclei were determined by the evaluation of the cross-sections for the emission of charged particles and neutrons. The angular distributions for the elastic scattering of deuterons were also measured, 47 references. (auth)

TUNGSTEN INTERFERENCE IN VOLUMETRIC ANALYSIS OF URANIUM

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

Dufour, R.F.; Articolo, O.

1958-08-01

Tungsten was found to have a negligible effect on the determination of uranium in uranium-zirconium alloys by the Jones reductor-dichromate method used at KAPL. The tungstate ion interferred seriously and gave high results. However, the soluble tungsten was precipitated by intensive fuming with sulfuric acid and rendered ineffective in tbe subsequent oxidationreduction reactions of the uranium. (auth)

Irradiated boll weevils: pheromone production determined by GLC analysis

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

McGovern, W.L.; McKibben, G.H.; Gueldner, R.C.

1975-08-15

The production of pheromone by Anthonomus grandis Boheman when treated with 10,000 rad of $sup 60$Co gamma irradiation compared favorably with that of control weevils for 5 days; however, feeding (determined by frass collection) was reduced from day one. No direct correlation was found between production of pheromone and elimination of frass. (auth)

THE TOTAL SCATTERING CROSS-SECTION OF SLOW NEUTRONS IN GASEOUS H$sub 2$S

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

Tubbs, N.; Sagan, U.; Rzany, H.

1962-07-01

In view of the difference between Heinloth's measured values for the neutron cross-sections of protons in water vapor and those predicted by the Krieger-Nelkin theory, measurements with gaseous H/sub 2/S were made. Results for this similar molecule show a smaller divergence from the theoretical values. (auth)

Optics of a Double Focussing Magnetic Sector by Fringe Effect; OPTIQUE D'UN SECTEUR MAGNETIQUE A DOUBLE FOCALISATION PAR EFFET DE FRANCES

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

Krafft, J.

1960-01-01

A general study is made of the optical elements of a double-fccusing magnetic sector by the fringe effect, with a view to its application to the monochromation of the proton, deuteron, or triton beam of the 1.4 Mev accelerator. (auth)

Electrolytic dissolver

DOEpatents

Wheelwright, E.J.; Fox, R.D.

1975-08-26

This patent related to an electrolytic dissolver wherein dissolution occurs by solution contact including a vessel of electrically insulative material, a fixed first electrode, a movable second electrode, means for insulating the electrodes from the material to be dissolved while permitting a free flow of electrolyte therebetween, means for passing a direct current between the electrodes and means for circulating electrolyte through the dissolver. (auth)

LATENT IMAGE FADING IN DOSIMETER FILM EMULSIONS

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

Musialowicz, T.; Wysopolski, J.

Latent image fading in film emulsions produced by Foton for dosimeter purposes is investigated with regard to the influence of time. The decrease of density caused by latent image fading in normal conditions of storing and relative humidity of 50 to 80% does not exceed 10% during a year. This corresponds to the dose reading error up to 20%. (auth)

MOLECULAR STRUCTURAL FACTORS IN COMPETITIVE INHIBITION OF SUGAR TRANSPORT

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

LeFevre, P.G.

1959-07-10

The high potency of phloretin as a competitive inhibitor of the human red cell's monosaccharide transport system is not shared by any of several molecular fragments of phloretin, but is duplicated in certain artificial estrogens resembling phloretin in respect to the spacing between terminal phenolic---OH groups. Related molecules which are slightly less extendible are comparatively inactive. (auth)

PREIRRADIATION MEASUREMENTS OF PIQUA FUEL ELEMENTS NO. P-1111, P-1113, P- 1114, AND P-1120

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

Hubbell, H.J.

1962-11-01

Results of preirradiation measurements and tests performed during the processing and assembly of the individual fuel cylinders contained in Piqua Fuel Elements No. P-1111, P-1113, P-1114, and P-1120 are presented. A description of the techniques and equipment used in obtaining the data is also included. (auth)

Qualification of submerged-arc narrow strip cladding process

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

Ayres, P.S.; Gottschling, J.D.; Jeffers, G.K.

1975-08-01

An unique narrow strip cladding process for use on both plate and forging material for nuclear components was developed. The qualification testing of this low-heat input process for cladding nuclear components, including those of SA508 Class 2 material is described. The theory that explains the acceptable results of these tests is also given. (auth)

False-positive liver scan in a patient with hepatic amyloidosis: case report

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

Suzuki, K.; Okuda, K.; Yoshida, T.

1976-01-01

A case of secondary hepatic amyloidosis exhibiting a large liver and multiple defects on the $sup 198$Au-radiocolloid scintigraph is presented. Biopsy and angiographic studies indicated that the areas of reduced colloid uptake represented heavy amyloid deposition, and the area of the left lobe with contrasting high activity most probably represented compensatory hypertrophy. (auth)

SEPARATION OF THORIUM FROM RARE EARTHS WITH TANNIN (in Russian)

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

Vlodavets, N.I.

1959-03-01

Thorium is quantitatively precipitated with tannin in a 0.005 N solution of nitric or hydrochloric acid. This permits its separation from trivalent rare earths, which are not precipitated with tannin in such relatively weak acid solutions. The accuracy of the determinations is as usual at the gravimetric determinations of macroquantities of elements. (auth)

KINETICS OF LOW SOURCE REACTOR STARTUPS. PART I

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

Hurwitz, H. Jr.; MacMillan, D.B.; Smith, J.H.

1962-06-01

Statistical fluctuntions of neutron populations in reactors are analyzed by means of an approximate theoretical model. Development of the model is given in detail; also included are extensive numerical results derived from its application to systems with time-dependent reactivity, namely, a reactor during start-up. The special relationships of fluctuations to safety considerations are discussed. (auth)

Radioisotopic heat source

DOEpatents

Jones, G.J.; Selle, J.E.; Teaney, P.E.

1975-09-30

Disclosed is a radioisotopic heat source and method for a long life electrical generator. The source includes plutonium dioxide shards and yttrium or hafnium in a container of tantalum-tungsten-hafnium alloy, all being in a nickel alloy outer container, and subjected to heat treatment of from about 1570$sup 0$F to about 1720$sup 0$F for about one h. (auth)

THE INTERACTION MEAN FREE PATH OF PROTONS AT 3 Tev

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

Day, G.; Gauld, C.F.; McCusker, C.B.A.

1963-02-16

The mean free path ( F ) of singly charged primary particles in the energy region of 3 Tev is determined using a maximum-likelihood technique. With all events taken into account a value of F = 22 cm is obtained. Considering only those events with a potential path greater than 20 cm, F becomes 27 cm. (auth)

Self-consistent Models of Strong Interaction with Chiral Symmetry

DOE R&D Accomplishments Database

Nambu, Y.; Pascual, P.

1963-04-01

Some simple models of (renormalizable) meson-nucleon interaction are examined in which the nucleon mass is entirely due to interaction and the chiral ( gamma {sub 5}) symmetry is "broken'' to become a hidden symmetry. It is found that such a scheme is possible provided that a vector meson is introduced as an elementary field. (auth)

Coaxial short pulsed laser

DOEpatents

Nelson, M.A.; Davies, T.J.

1975-08-01

This invention relates to a laser system of rugged design suitable for use in a field environment. The laser itself is of coaxial design with a solid potting material filling the space between components. A reservoir is employed to provide a gas lasing medium between an electrode pair, each of which is connected to one of the coaxial conductors. (auth)

CHARGED HEAVY MESONS (in French)

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

Leprince-Ringuet, L.

1960-03-01

The general properties of heavy mesons and hyperons are reviewed, and the results obtained with cosmic-ray studies at the Pic du Midi are reported. The investigations made with accelerators in the study of mesons are then described. The basic problems posed by heavy mesons and hyperons are reviewed with emphasis on the isotopic spin, strangeness, and parity. (tr-auth)

Method of forming high density oxide pellets by hot pressing at 50$sup 0$ to 100$sup 0$C above the cubic to monoclinic phase transformation temperature

DOEpatents

Pasto, A.E.

1975-08-01

A process for low temperature sintering of rare earth and actinide oxides which have a cubic to monoclinic transformation is described. The process involves hot pressing a powder compact at a temperature just above the transformation temperature. (auth)

QUANTITATION OF MENSTRUAL BLOOD LOSS: A RADIOACTIVE METHOD UTILIZING A COUNTING DOME

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

Tauxe, W.N.

A description has been given of a simple, accurate tech nique for the quantitation of menstrual blood loss, involving the determination of a three- dimensional isosensitivity curve and the fashioning of a lucite dome with cover to fit these specifications. Ten normal subjects lost no more than 50 ml each per menstrual period. (auth)

THE ARMOUR DUST FUELED REACTOR (ADFR). Quarterly Progress Report No. 2 For the Period May 21, 1958 to August 21, 1958

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

Loewe, W.E.; Krucoff, D.

1958-10-31

Study of the ADFR concept included experimental work on fuel dust suspension stability and redispersibility, erosion, and dust deposition using the fuel dust circulation loop. Some theoretical work was done in the areas of reactor safety and breeding. (For preceding period -see AECU-3827.) (auth)

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

Capellen, J.; Svec, H.J.; Sage, C.R.

This report covers the year 1972, and lists approximately 10,000 articles of interest to mass spectroscopists. This two-volume report consists of three sections. Vol. II contains the Key Word Out of Context Index (KWOC Index) section. The KWOC Index lists the key words, the reference numbers of the articles in which the key word appears, and the first 100 characters of the title. (auth)

Pilot perception and confidence of location during a simulated helicopter navigation task.

PubMed

Yang, Ji Hyun; Cowden, Bradley T; Kennedy, Quinn; Schramm, Harrison; Sullivan, Joseph

2013-09-01

This paper aims to provide insights into human perception, navigation performance, and confidence in helicopter overland navigation. Helicopter overland navigation is a challenging mission area because it is a complex cognitive task, and failing to recognize when the aircraft is off-course can lead to operational failures and mishaps. A human-in-the-loop experiment to investigate pilot perception during simulated overland navigation by analyzing actual navigation trajectory, pilots' perceived location, and corresponding confidence levels was designed. There were 15 military officers with prior overland navigation experience who completed 4 simulated low-level navigation routes, 2 of which entailed auto-navigation. This route was paused roughly every 30 s for the subject to mark their perceived location on the map and their confidence level using a customized program. Analysis shows that there is no correlation between perceived and actual location of the aircraft, nor between confidence level and actual location. There is, however, some evidence that there is a correlation (rho = -0.60 to approximately 0.65) between perceived location and intended route of flight, suggesting that there is a bias toward believing one is on the intended flight route. If aviation personnel can proactively identify the circumstances in which usual misperceptions occur in navigation, they may reduce mission failure and accident rate. Fleet squadrons and instructional commands can benefit from this study to improve operations that require low-level flight while also improving crew resource management.

Motor onset and diagnosis in Huntington disease using the diagnostic confidence level.

PubMed

Liu, Dawei; Long, Jeffrey D; Zhang, Ying; Raymond, Lynn A; Marder, Karen; Rosser, Anne; McCusker, Elizabeth A; Mills, James A; Paulsen, Jane S

2015-12-01

Huntington disease (HD) is a neurodegenerative disorder characterized by motor dysfunction, cognitive deterioration, and psychiatric symptoms, with progressive motor impairments being a prominent feature. The primary objectives of this study are to delineate the disease course of motor function in HD, to provide estimates of the onset of motor impairments and motor diagnosis, and to examine the effects of genetic and demographic variables on the progression of motor impairments. Data from an international multisite, longitudinal observational study of 905 prodromal HD participants with cytosine-adenine-guanine (CAG) repeats of at least 36 and with at least two visits during the followup period from 2001 to 2012 was examined for changes in the diagnostic confidence level from the Unified Huntington's Disease Rating Scale. HD progression from unimpaired to impaired motor function, as well as the progression from motor impairment to diagnosis, was associated with the linear effect of age and CAG repeat length. Specifically, for every 1-year increase in age, the risk of transition in diagnostic confidence level increased by 11% (95% CI 7-15%) and for one repeat length increase in CAG, the risk of transition in diagnostic confidence level increased by 47% (95% CI 27-69%). Findings show that CAG repeat length and age increased the likelihood of the first onset of motor impairment as well as the age at diagnosis. Results suggest that more accurate estimates of HD onset age can be obtained by incorporating the current status of diagnostic confidence level into predictive models.

Assessment of safety margins in zircaloy oxidation and embrittlement criteria for ECCS acceptance

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

Williford, R.E.

1986-04-01

Current Emergency Core Cooling System (ECCS) Acceptance Criteria for light-water reactors include certain requirements pertaining to calculations of core performance during a Loss of Coolant Accident (LOCA). The Baker-Just correlation must be used to calculate Zircaloy-steam oxidation, calculated peak cladding temperatures (PCT) must not exceed 1204/sup 0/C, and calculated oxidation must not exceed 17% equivalent cladding reacted (17% ECR). The minimum margin of safety was estimated for each of these criteria, based on research performed in the last decade. Margins were defined as the amounts of conservatism over and above the expected extreme values computed from the data base atmore » specified confidence levels. The currently required Baker-Just oxidation correlation provides margins only over the 1100/sup 0/C to 1500/sup 0/C temperature range at the 95% confidence level. The PCT margins for thermal shock and handling failures are adequate at oxidation temperatures above 1204/sup 0/C for 210 and 160 seconds, respectively, at the 95% confidence level. ECR thermal shock and handling margins at the 50% and 95% confidence levels, respectively, range between 2% and 7% ECR for the Baker-Just correlation, but vanish at temperatures between 1100/sup 0/C and 1160/sup 0/C for the best-estimate Cathcart-Pawel correlation. Use of the Cathcart-Pawel correlation for LOCA calculations can be justified at the 85% to 88% confidence level if cooling rate effects can be neglected. 75 refs., 21 figs.« less

Evaluations of refraction competencies of ophthalmic technicians in Mozambique.

PubMed

Shah, Kajal; Naidoo, Kovin; Chagunda, Margarida; Loughman, James

2016-01-01

Ophthalmic technicians (OT) work at health facilities in Mozambique and are trained to provide primary and secondary eye care services including basic refraction. This study was designed to assess OT competence and confidence in refraction, and investigate whether an upskilling programme is effective in developing their competence and confidence at refraction. Thirty-one trainee OTs and 16 qualified OTs were recruited to the study. A background questionnaire was administered to determine the demographic profile of the OTs. A confidence levels questionnaire explored their self-reported skills. Clinical competencies were assessed in relation to knowledge (theory exam) and clinical skills (patient exams). 11 OTs were upskilled and the clinical evaluations carried out post training. Initial evaluations demonstrated that confidence and competence levels varied depending on the OTs training (location and duration), and their location of work (clinical load, availability of equipment and other eye care personnel). The qualified OTs were more competent than trainee OTs in most of the evaluations. Post upskilling results demonstrated significant positive impact on confidence and competence levels. These evaluations identified factors affecting the refraction competencies of the OTs and demonstrated that upskilling is effective in improving confidence and competence levels for refraction. They demonstrate the need for a refraction competency framework. The overarching aim of this research was to inform the development of a nationwide programme of OT mentoring, upskilling and leading to the establishment of clinical competency standards for the new OT curricula, relevant to the professional demands. Copyright © 2014 Spanish General Council of Optometry. Published by Elsevier Espana. All rights reserved.

Students' confidence in the ability to transfer basic math skills in introductory physics and chemistry courses at a community college

NASA Astrophysics Data System (ADS)

Quinn, Reginald

2013-01-01

The purpose of this study was to examine the confidence levels that community college students have in transferring basic math skills to science classes, as well as any factors that influence their confidence levels. This study was conducted with 196 students at a community college in central Mississippi. The study was conducted during the month of November after all of the students had taken their midterm exams and received midterm grades. The instrument used in this survey was developed and validated by the researcher. The instrument asks the students to rate how confident they were in working out specific math problems and how confident they were in working problems using those specific math skills in physics and chemistry. The instrument also provided an example problem for every confidence item. Results revealed that students' demographics were significant predictors in confidence scores. Students in the 18-22 year old range were less confident in solving math problems than others. Students who had retaken a math course were less confident than those who had not. Chemistry students were less confident in solving math problems than those in physics courses. Chemistry II students were less confident than those in Chemistry I and Principals of Chemistry. Students were least confident in solving problems involving logarithms and the most confident in solving algebra problems. In general, students felt that their math courses did not prepare them for the math problems encountered in science courses. There was no significant difference in confidence between students who had completed their math homework online and those who had completed their homework on paper. The researcher recommends that chemistry educators find ways of incorporating more mathematics in their courses especially logarithms and slope. Furthermore, math educators should incorporate more chemistry related applications to math class. Results of hypotheses testing, conclusions, discussions, and recommendations for future research are included.

Constraint on the primordial gravitational waves from the joint analysis of BICEP2 and Planck HFI 353 GHz dust polarization data

NASA Astrophysics Data System (ADS)

Cheng, Cheng; Huang, Qing-Guo; Wang, Sai

2014-12-01

We make a joint analysis of BICEP2 and recently released Planck HFI 353 GHz dust polarization data, and find that there is no evidence for the primordial gravitational waves and the bound on the tensor-to-scalar ratio becomes r < 0.083 at 95% confidence level in the base ΛCDM + tensor model. Extending to the model with running of scalar spectral index, the bound is a little bit relaxed to r < 0.116 at 95% confidence level. Our results imply that the inflation model with a single monomial potential is marginally disfavored at around 95% confidence level. Especially, the m2phi2/2 inflation model is disfavored at more than 2σ level. However, the Starobinsky inflation model gives a nice fit.

Exploring the Relationship between K-12 Public School Teachers' Conceptions of Assessment and Their Classroom Assessment Confidence Levels

ERIC Educational Resources Information Center

Ludwig, Naomi Wayne

2014-01-01

Studies have shown that teachers' beliefs influence their assessment practices. However, the overarching framework of those beliefs in relation to teachers' classroom assessment confidence has been largely unexamined. This research explored teachers' conceptions of assessment and their confidence regarding the implementation of sound classroom…

I Think I Can: Improving Teaching Self-Confidence of International Teaching Assistants.

ERIC Educational Resources Information Center

Salinas, Moises F.; Kozuh, Ghislaine; Seraphine, Anne E.

1999-01-01

Explored the effect of a teaching orientation for international teaching assistants (ITAs) on their teaching self-confidence. Surveys of ITAs before and after attending a 4-day orientation to teaching designed to improve interactive teaching skills suggested a positive effect of the orientation on their perceived level of self-confidence about…

Nurses' knowledge of advance directives and perceived confidence in end-of-life care: a cross-sectional study in five countries.

PubMed

Coffey, Alice; McCarthy, Geraldine; Weathers, Elizabeth; Friedman, M Isabel; Gallo, Katherine; Ehrenfeld, Mally; Chan, Sophia; Li, William H C; Poletti, Piera; Zanotti, Renzo; Molloy, D William; McGlade, Ciara; Fitzpatrick, Joyce J; Itzhaki, Michal

2016-06-01

Nurses' knowledge regarding advance directives may affect their administration and completion in end-of-life care. Confidence among nurses is a barrier to the provision of quality end-of-life care. This study investigated nurses' knowledge of advance directives and perceived confidence in end-of-life care, in Hong Kong, Ireland, Israel, Italy and the USA using a cross-sectional descriptive design (n = 1089). In all countries, older nurses and those who had more professional experience felt more confident managing patients' symptoms at end-of-life and more comfortable stopping preventive medications at end-of-life. Nurses in the USA reported that they have more knowledge and experience of advance directives compared with other countries. In addition, they reported the highest levels of confidence and comfort in dealing with end-of-life care. Although legislation for advance directives does not yet exist in Ireland, nurses reported high levels of confidence in end-of-life care. © 2016 The Authors International Journal of Nursing Practice Published by Wiley Publishing Asia Pty Ltd.

Navy Multiband Terminal (NMT)

DTIC Science & Technology

2015-12-01

AEHF satellites and MILSTAR satellites in the backwards-compatible mode. Mission requirements specific to Navy operations, including threat levels and...Center for Cost Analysis (NCCA) Component Cost Position (CCP) memo dated December 18, 2015 Confidence Level Confidence Level of cost estimate for... Econ Qty Sch Eng Est Oth Spt Total 6.970 0.082 0.637 0.034 0.000 -1.210 0.000 -0.418 -0.875 6.095 Current SAR Baseline to Current Estimate (TY $M) PAUC

Impact of High-Fidelity Simulation and Pharmacist-Specific Didactic Lectures in Addition to ACLS Provider Certification on Pharmacy Resident ACLS Performance.

PubMed

Bartel, Billie J

2014-08-01

This pilot study explored the use of multidisciplinary high-fidelity simulation and additional pharmacist-focused training methods in training postgraduate year 1 (PGY1) pharmacy residents to provide Advanced Cardiovascular Life Support (ACLS) care. Pharmacy resident confidence and comfort level were assessed after completing these training requirements. The ACLS training requirements for pharmacy residents were revised to include didactic instruction on ACLS pharmacology and rhythm recognition and participation in multidisciplinary high-fidelity simulation ACLS experiences in addition to ACLS provider certification. Surveys were administered to participating residents to assess the impact of this additional education on resident confidence and comfort level in cardiopulmonary arrest situations. The new ACLS didactic and simulation training requirements resulted in increased resident confidence and comfort level in all assessed functions. Residents felt more confident in all areas except providing recommendations for dosing and administration of medications and rhythm recognition after completing the simulation scenarios than with ACLS certification training and the didactic components alone. All residents felt the addition of lectures and simulation experiences better prepared them to function as a pharmacist in the ACLS team. Additional ACLS training requirements for pharmacy residents increased overall awareness of pharmacist roles and responsibilities and greatly improved resident confidence and comfort level in performing most essential pharmacist functions during ACLS situations. © The Author(s) 2013.

A Comparison of Student Confidence Levels in Open Access and Undergraduate University Courses

ERIC Educational Resources Information Center

Atherton, Mirella

2017-01-01

Confidence levels of students enrolled in open access programs and undergraduate courses were measured at the University of Newcastle. The open access science students aimed to gain access to undergraduate studies in various disciplines at University. The undergraduate students were enrolled in a variety of degrees and were surveyed during their…

Automotive Stirling engine development program. [fuel economy assessment

NASA Technical Reports Server (NTRS)

Kitzner, E. W.

1978-01-01

The Ford/DOE automotive Stirling engine development program is directed towards establishing the technological and developmental base that would enable a decision on whether an engineering program should be directed at Stirling engine production. The fuel economy assessment aims to achieve, with a high degree of confidence, the ERDA proposal estimate of 20.6 MPG (gasoline) for a 4500 lb 1WC Stirling engine passenger car. The current M-H fuel economy projection for the 170 HP Stirling engine is 15.7 MPG. The confidence level for this projection is 32%. A confidence level of 29% is projected for a 22.1 MPG estimate. If all of the planned analyses and test work is accomplished at the end of the one year effort, and the projected improvements are substantiated, the confidence levels would rise to 59% for the 20.6 MPG projection and 54% for the 22.1 MPG projection. Progress achieved thus far during the fuel economy assessment is discussed.

Student certainty answering misconception question: study of Three-Tier Multiple-Choice Diagnostic Test in Acid-Base and Solubility Equilibrium

NASA Astrophysics Data System (ADS)

Ardiansah; Masykuri, M.; Rahardjo, S. B.

2018-04-01

Students’ concept comprehension in three-tier multiple-choice diagnostic test related to student confidence level. The confidence level related to certainty and student’s self-efficacy. The purpose of this research was to find out students’ certainty in misconception test. This research was quantitative-qualitative research method counting students’ confidence level. The research participants were 484 students that were studying acid-base and equilibrium solubility subject. Data was collected using three-tier multiple-choice (3TMC) with thirty questions and students’ questionnaire. The findings showed that #6 item gives the highest misconception percentage and high student confidence about the counting of ultra-dilute solution’s pH. Other findings were that 1) the student tendency chosen the misconception answer is to increase over item number, 2) student certainty decreased in terms of answering the 3TMC, and 3) student self-efficacy and achievement were related each other in the research. The findings suggest some implications and limitations for further research.

A boost of confidence: The role of the ventromedial prefrontal cortex in memory, decision-making, and schemas.

PubMed

Hebscher, Melissa; Gilboa, Asaf

2016-09-01

The ventromedial prefrontal cortex (vmPFC) has been implicated in a wide array of functions across multiple domains. In this review, we focus on the vmPFC's involvement in mediating strategic aspects of memory retrieval, memory-related schema functions, and decision-making. We suggest that vmPFC generates a confidence signal that informs decisions and memory-guided behaviour. Confidence is central to these seemingly diverse functions: (1) Strategic retrieval: lesions to the vmPFC impair an early, automatic, and intuitive monitoring process ("feeling of rightness"; FOR) often associated with confabulation (spontaneous reporting of erroneous memories). Critically, confabulators typically demonstrate high levels of confidence in their false memories, suggesting that faulty monitoring following vmPFC damage may lead to indiscriminate confidence signals. (2) Memory schemas: the vmPFC is critically involved in instantiating and maintaining contextually relevant schemas, broadly defined as higher level knowledge structures that encapsulate lower level representational elements. The correspondence between memory retrieval cues and these activated schemas leads to FOR monitoring. Stronger, more elaborate schemas produce stronger FOR and influence confidence in the veracity of memory candidates. (3) Finally, we review evidence on the vmPFC's role in decision-making, extending this role to decision-making during memory retrieval. During non-mnemonic and mnemonic decision-making the vmPFC automatically encodes confidence. Confidence signal in the vmPFC is revealed as a non-linear relationship between a first-order monitoring assessment and second-order action or choice. Attempting to integrate the multiple functions of the vmPFC, we propose a posterior-anterior organizational principle for this region. More posterior vmPFC regions are involved in earlier, automatic, subjective, and contextually sensitive functions, while more anterior regions are involved in controlled actions based on these earlier functions. Confidence signals reflect the non-linear relationship between first-order, posterior-mediated and second-order, anterior-mediated processes and are represented along the entire axis. Copyright © 2016 Elsevier Ltd. All rights reserved.

How trust in institutions and organizations builds general consumer confidence in the safety of food: a decomposition of effects.

PubMed

de Jonge, J; van Trijp, J C M; van der Lans, I A; Renes, R J; Frewer, L J

2008-09-01

This paper investigates the relationship between general consumer confidence in the safety of food and consumer trust in institutions and organizations. More specifically, using a decompositional regression analysis approach, the extent to which the strength of the relationship between trust and general confidence is dependent upon a particular food chain actor (for example, food manufacturers) is assessed. In addition, the impact of specific subdimensions of trust, such as openness, on consumer confidence are analyzed, as well as interaction effects of actors and subdimensions of trust. The results confirm previous findings, which indicate that a higher level of trust is associated with a higher level of confidence. However, the results from the current study extend on previous findings by disentangling the effects that determine the strength of this relationship into specific components associated with the different actors, the different trust dimensions, and specific combinations of actors and trust dimensions. The results show that trust in food manufacturers influences general confidence more than trust in other food chain actors, and that care is the most important trust dimension. However, the contribution of a particular trust dimension in enhancing general confidence is actor-specific, suggesting that different actors should focus on different trust dimensions when the purpose is to enhance consumer confidence in food safety. Implications for the development of communication strategies that are designed to regain or maintain consumer confidence in the safety of food are discussed.

Using Asymptotic Results to Obtain a Confidence Interval for the Population Median

ERIC Educational Resources Information Center

Jamshidian, M.; Khatoonabadi, M.

2007-01-01

Almost all introductory and intermediate level statistics textbooks include the topic of confidence interval for the population mean. Almost all these texts introduce the median as a robust measure of central tendency. Only a few of these books, however, cover inference on the population median and in particular confidence interval for the median.…

Confidence Sharing in the Vocational Counselling Interview: Emergence and Repercussions

ERIC Educational Resources Information Center

Olry-Louis, Isabelle; Bremond, Capucine; Pouliot, Manon

2012-01-01

Confidence sharing is an asymmetrical dialogic episode to which both parties consent, in which one reveals something personal to the other who participates in the emergence and unfolding of the confidence. We describe how this is achieved at a discursive level within vocational counselling interviews. Based on a corpus of 64 interviews, we analyse…

EA 18G Growler Aircraft (EA 18G)

DTIC Science & Technology

2015-12-01

10051.9 N/A 13186.9 8636.4 11550.1 15672.4 1 APB Breach Confidence Level Confidence Level of cost estimate for current APB: 50% The current...estimate recommendation aims to provide sufficient resources to execute the program under normal conditions, encountering average levels of technical...TY $M) Initial PAUC Development Estimate Changes PAUC Production Estimate Econ Qty Sch Eng Est Oth Spt Total 93.573 4.150 1.442 -0.319 0.947 -0.348

EFFECT OF CORRELATIONS ON THE TRANSPORT COEFFICIENTS OF A PLASMA (in French)

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

Balescu, R.; de Gottal, Ph.

1961-01-01

A closed formula is obtained for the long-lived corre1ations in an inhomogeneous plasma; it is expressed in terms of the one particle distribution function. This forms an appropriate starting point for a rigorous theory of transport phenomena in plasmas, including the effect of molecular corrclations. An expressson is obtained for the thermal conductivity. (auth)

SLOW $pi$$sup +$-MESON CAPTURE BY LIGHT NUCLEI IN THE CORRELATIONAL NUCLEAR MODEL (in Russian)

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

Shklyarevskii, G.M.

Absorption of slow pi /sup +/-mesons by light nuclei in the pi /sup +/ + A yields A' + 2p reaction is considered. It is shown that an investigation of the proton spectra permits one to study small range pair correlation between nuclear nucleons. Conditions in which the corresponding experiments should be carried out are indicated. (auth)

SYMPLECTIC INVARIANTS AND FLOWERS' CLASSIFICATION OF SHELL MODEL STATES

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

Helmers, K.

1961-01-01

Flowers has given a classification of shell model states in j-j coupling for a fixed number of nucleons in a shell with respect to a symplectic group. The relation between these classifications for the various nucleon numbers is studied and is found to be governed by another symplectic group, the transformations of which in general change the nucleon number. (auth)

Standards in nuclear science and technology. A bibliography

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

None

1973-09-01

Abstracts of 1803 U. S. and non-U. S. publications concerning a broad range of standards used in nuclear science and technology are included. The publication dates span the period 1962 through 1972, inclusive. Abstracts are arranged chronologically within four categories entitled Reactors and Engineering, Instruments and Calibration, Radiation and Radiation Protection, and Miscellaneous. A subject index is also included. (auth)

UFO: A THREE-DIMENSIONAL NEUTRON DIFFUSION CODE FOR THE IBM 704

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

Auerbach, E.H.; Jewett, J.P.; Ketchum, M.A.

A description of UFO, a code for the solution of the fewgroup neutron diffusion equation in three-dimensional Cartesian coordinates on the IBM 704, is given. An accelerated Liebmann flux iteration scheme is used, and optimum parameters can be calculated by the code whenever they are required. The theory and operation of the program are discussed. (auth)

THE INFLUENCE OF ANTITUBERCULOUS VACCINATION ON THE COURSE OF THE TUBERCULOUS PROCESS IN CHRONIC IRRADIATION (in Russian)

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

Khudushina, T.A.

1961-10-01

Preliminary antituberculosis vaccination of tuberculosisinfected rabbits subjected to protracted x irradiation (10 r daily) yields a positive effect only during the first stages of irradiation. Disturbance of specific antituberculous immunity occurs in the process of development of chronic radiation sickness. At this period the tuberculous process acquires a marked exudative-necrotic character. (auth)

DETERMINATION OF THE RANGE-ENERGY RELATION FOR NITROGEN AND OXYGEN IONS IN PHOTOGRAPHIC EMULSIONS (in Russian)

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

Parfanovich, D.M.; Semchinova, A.M.; Flerov, G.N.

1957-08-01

The dependence of ramge on energy has been measured for N and O ions in E-1 Ilford emulsions for energies between 3 to 120 Mev. The results are compared with theoretical predictions. It is also estimated at what energy the N and O ions lose all their electrons on tranversal of matter. (tr-auth)

Hydrogen isotope separation from water

DOEpatents

Jensen, R.J.

1975-09-01

A process for separating tritium from tritium-containing water or deuterium enrichment from water is described. The process involves selective, laser-induced two-photon excitation and photodissociation of those water molecules containing deuterium or tritium followed by immediate reaction of the photodissociation products with a scavenger gas which does not substantially absorb the laser light. The reaction products are then separated from the undissociated water. (auth)

RESULTS OF COMPUTATIONS MADE FOR DASA-USNRDL FALLOUT SYMPOSIUM

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

Read, R.; Wagner, L.; Moorehead, E.

1962-11-01

The regression techniques introduced by the Civil Defense Research Project for estimating fallout particle deposition coordinates, their standard ellipses, and isointensity contours have been applied to some of the homework problems assigned for the DASA-USNRDL Fallout Symposium. The results are reported and the estimates are contrasted with estimates based on the assumption that winds are invariant with time. (auth).

Heat exchanger with a removable tube section

DOEpatents

Wolowodiuk, W.; Anelli, J.

1975-07-29

A heat exchanger is described in which the tube sheet is secured against primary liquid pressure, but which allows for easy removal of the tube section. The tube section is supported by a flange which is secured by a number of shear blocks, each of which extends into a slot which is immovable with respect to the outer shell of the heat exchanger. (auth)

Temporal aspects of tumorigenic response to individual and mixed carcinogens. [Response of mouse skin to benzo(a)pyrene

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

Albert, R.E.; Burns, F.J.

1976-02-01

Results are reported from experiments that involved either single or multiple doses of benzo(a)pyrene in mouse skin followed by prolonged observation. Preliminary results indicate linearity in dose and time and no evidence of recovery or enhancement for multiple doses of initiator given for extended periods of time. (auth)

THE INDUCTION OF TUMORS IN THE RAT BY ASTATINE-211

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

Durbin, P.W.; Asling, C.W. et al

1958-09-01

Exposure of rats to sublethal amounts of At/sup 211/ results in the early appearance of large numbers of mammary tumors, many of them malignant, and in the production of an altered functional state simulating menopause. It is evident that the tumor induction is not yet tested for its association with radiation exposure separately from the endocrine disturbance. (auth)

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

Shera, E.B.; Casper, K.J.

>A technique is described which allows the angular correlations of several radiations, each in cascade with one common gamma ray, to be determined simultaneously through the use of a multichannel analyzer. Normalization is provided by simultaneously recording both the singles and coincidence spectra using the subgrouping facilities of the analyzer. A subgroup programmer has been constructed which provides this capability while maintaining identical calibration for the two spectra. (auth)

THERAPY WITH P$sup 32$ IN POLYCYTHEMIA (in German)

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

Waschulewski, H.; Dorffel, E.W.

1958-01-01

Therapy vdth P/sup 32/ is being used more and more in polycythemia vera rubra. There ls no generally valid dosage scheme. Body-weight, blood-pictare and general condition furnish centaln clues. At present, we administer about 0.08 mc/kg body-weight as initial dose adding later, if necessary, further quantities under careful control of the blood-picture. (auth)

Identification of irradiated mushrooms (in French)

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

Bugyaki, L.

1973-01-01

From international colloquium: the identification of irradiated foodstuffs; Karlsruhe, Germany (24 Oct 1973). Cuttings from non-irradiated mushrooms, when kept at normal or sub-zero temperatares, produce new hyphae in solld culture media even after slx days, thus proving that they are living. On the other hand, cultures from mushrooms irradiated with 250 krad never show any sign of cellular proliferation. (auth)

Biological implications of the adolescent growth process: body composition

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

Forbes, G.B.

The adolescent growth curve for total-body potassium, as determined by potassium-40 counting, is described. Since this is a function of the lean body mass, this curve permits estimates of increments in body Ca and N contents. A new mathematical model is proposed in which the idolescent spurt is considered to be superimposed on a pre-adolescent growth pattern. (auth)

Successful management of lichen myxedematosus

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

Hill, T.F.; Crawford, J.N.; Rogers, C.C.

1976-01-01

Radiation therapy led to local resolution of a case of lichen myxedematosus, which, to our knowledge, is the first reported successful treatment of the disease by radiation therapy. Radiation therapy is only the second therapeutic modality that is effective in the treatment of lichen myxedematosus. We propose specific criteria for the diagnosis of lichen myxedematosus to facilitate future studies into the nature of this disease. (auth)

Method for preparing thin-walled ceramic articles of configuration

DOEpatents

Holcombe, C.E.; Powell, G.L.

1975-11-01

A method for preparing a hollow thin-walled ceramic product is described. Ceramic powder is plasma-sprayed onto a concave surface of a substrate having a coefficient of thermal expansion less than that of the ceramic. The coated substrate is heated to sinter the ceramic and then cooled to effect a separation of the ceramic product from the substrate. (auth)

MULTIPLICATION OF DIFFERENT VIRUSES AND EVOLUTION OF VIRAL INFECTION IN CELLULAR CULTURES EXPOSED TO THE ACTION OF HEAVY WATER (in French)

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

Lavillaureix, J.; Reeb, E.; Surjus, A.

1961-03-20

The multiplication of West Nile, Coxsackie B3, and polio type II viruses is considerably increased if they are inoculated on cells cultivated in the presence of heavy water 5 hr before inoculation. The viral infection can not evolve in the presence of heavy water. (tr-auth)

Military Construction and Family Housing Program. Fiscal Year (FY) 2001 Budget Estimates

DTIC Science & Technology

2000-02-01

Department of the Air Force Military Construction and Family Housing Program Fiscal Year (FY) 2001 Budget Estimates Justification Data...Department of the Air Force Military Construction and Military Family Housing Program Summary Fiscal Year 2001 Appropriation Authorization Request... FISCAL YEAR 2001 (DOLLARS IN THOUSANDS) STATE/COUNTRY INSTALLATION TITLE APPROP REQUEST AUTH REQUEST PAGE INSIDE THE U.S. ALABAMA

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

Joerissen, G.; Zuend, H.

From international nuclear industries fair; Basel, Switzerland (16 Oct 1972). The probability and the consequences of an aircraft crash on a nuclear power plant incorporating a light water reactor are estimated considering the probabilities of an aircraft strike, missile penetration through walls and damage of structures and systems important for safety. The estimated risks are presented in a Farmer diagram and compared with tolerable risk limits. (6 references) (auth)

ON SOME MATHEMATICAL PROBLEMS SUGGESTED BY BIOLOGICAL SCHEMES

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

Luehr, C.

1958-08-01

A simplified model of a population which reproduces asexually and is subject to random mututions implying improvement in chances of survival and procreation is treated by a numerical calculation. The behavior of such a system is then summarized by an analytical formula. The paper is intended as the first one of a series devoted to mathematical studies of simplified genetic situations. (auth)

Production and fabrication of 2500-lb Nb--Ti ingots to rod

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

Cordier, T.E.; McDonald, W.K.

Interest in Nb--Ti superconducting devices is exploding. This paper outlines the critical production criteria for this material. Areas discussed include ingot blending, melting, forging, extrusion, and rod reducing with emphasis on the metallurgical considerations affecting mechanical properties. Data are included relating process parameters to TEM finding as well as R.T. ductility and optical microscopy. (auth)

TEMPEST II--A NEUTRON THERMALIZATION CODE

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

Shudde, R.H.; Dyer, J.

The TEMPEST II neutron thermalization code in Fortran for IBM 709 or 7090 calculates thermal neutron flux spectra based upon the Wigner-Wilkins equation, the Wilkins equation, or the Maxwellian distribution. When a neutron spectrum is obtained, TEMPEST II provides microscopic and macroscopic cross section averages over that spectrum. Equations used by the code and sample input and output data are given. (auth)

C-5 Reliability Enhancement and Re-engining Program (C-5 RERP)

DTIC Science & Technology

2015-12-01

Production Estimate Current APB Production Objective/Threshold Demonstrated Performance Current Estimate Time To Climb/Initial Level Off 837,000 lbs...RCR - Runway Condition Reading SDD - System Design and Development SL - Sea Level C-5 RERP December 2015 SAR March 23, 2016 16:10:28 UNCLASSIFIED 12...5.3 5.3 Acq O&M 0.0 0.0 -- 0.0 0.0 0.0 0.0 Total 7146.6 7135.7 N/A 6698.0 7694.1 7510.7 7066.6 Confidence Level Confidence Level of cost estimate

Confidence level in venipuncture and knowledge on causes of in vitro hemolysis among healthcare professionals.

PubMed

Milutinović, Dragana; Andrijević, Ilija; Ličina, Milijana; Andrijević, Ljiljana

2015-01-01

This study aimed to assess confidence level of healthcare professionals in venipuncture and their knowledge on the possible causes of in vitro hemolysis. A sample of 94 healthcare professionals (nurses and laboratory technicians) participated in this survey study. A four-section questionnaire was used as a research instrument comprising general information for research participants, knowledge on possible causes of in vitro hemolysis due to type of material used and venipuncture technique and specimen handling, as well as assessment of healthcare professionals' confidence level in their own ability to perform first and last venipuncture. The average score on the knowledge test was higher in nurses' than in laboratory technicians (8.11±1.7, and 7.4±1.5, respectively). The difference in average scores was statistically significant (P=0.035) and Cohen's d in the range of 0.4 indicates that there is a moderate difference on the knowledge test among the health care workers. Only 11/94 of healthcare professionals recognized that blood sample collection from cannula and evacuated tube is method which contributes most to the occurrence of in vitro hemolysis, whereas most risk factors affecting occurrence of in vitro hemolysis during venipuncture were recognized. There were no significant differences in mean score on the knowledge test in relation to the confidence level in venipuncture (P=0.551). Confidence level at last venipuncture among both profiles of healthcare staff was very high, but they showed insufficient knowledge about possible factors affecting hemolysis due to materials used in venipuncture compared with factors due to venipuncture technique and handling of blood sample.

Using a Personal Device to Strengthen Password Authentication from an Untrusted Computer

NASA Astrophysics Data System (ADS)

Mannan, Mohammad; van Oorschot, P. C.

Keylogging and phishing attacks can extract user identity and sensitive account information for unauthorized access to users' financial accounts. Most existing or proposed solutions are vulnerable to session hijacking attacks. We propose a simple approach to counter these attacks, which cryptographically separates a user's long-term secret input from (typically untrusted) client PCs; a client PC performs most computations but has access only to temporary secrets. The user's long-term secret (typically short and low-entropy) is input through an independent personal trusted device such as a cellphone. The personal device provides a user's long-term secrets to a client PC only after encrypting the secrets using a pre-installed, "correct" public key of a remote service (the intended recipient of the secrets). The proposed protocol (MP-Auth) realizes such an approach, and is intended to safeguard passwords from keyloggers, other malware (including rootkits), phishing attacks and pharming, as well as to provide transaction security to foil session hijacking. We report on a prototype implementation of MP-Auth, and provide a comparison of web authentication techniques that use an additional factor of authentication (e.g. a cellphone, PDA or hardware token).

The development and validation of measures to assess cooking skills and food skills.

PubMed

Lavelle, Fiona; McGowan, Laura; Hollywood, Lynsey; Surgenor, Dawn; McCloat, Amanda; Mooney, Elaine; Caraher, Martin; Raats, Monique; Dean, Moira

2017-09-02

With the increase use of convenience food and eating outside the home environment being linked to the obesity epidemic, the need to assess and monitor individuals cooking and food skills is key to help intervene where necessary to promote the usage of these skills. Therefore, this research aimed to develop and validate a measure for cooking skills and one for food skills, that are clearly described, relatable, user-friendly, suitable for different types of studies, and applicable across all sociodemographic levels. Two measures were developed in light of the literature and expert opinion and piloted for clarity and ease of use. Following this, four studies were undertaken across different cohorts (including a sample of students, both 'Food preparation novices' and 'Experienced food preparers', and a nationally representative sample) to assess temporal stability, psychometrics, internal consistency reliability and construct validity of both measures. Analysis included T-tests, Pearson's correlations, factor analysis, and Cronbach's alphas, with a significance level of 0.05. Both measures were found to have a significant level of temporal stability (P < 0.001). Factor analysis revealed three factors with eigenvalues over 1, with two items in a third factor outside the two suggested measures. The internal consistency reliability for the cooking skills confidence measure ranged from 0.78 to 0.93 across all cohorts. The food skills confidence measure's Cronbach's alpha's ranged from 0.85 to 0.94. The two measures also showed a high discriminate validity as there were significant differences (P < 0.05 for cooking skills confidence and P < 0.01 for food skills confidence) between Food preparation novices' and 'Experienced food preparers.' The cooking skills confidence measure and the food skills confidence measure have been shown to have a very satisfactory reliability, validity and are consistent over time. Their user-friendly applicability make both measures highly suitable for large scale cross-sectional, longitudinal and intervention studies to assess or monitor cooking and food skills levels and confidence.

The antecedents and belief-polarized effects of thought confidence.

PubMed

Chou, Hsuan-Yi; Lien, Nai-Hwa; Liang, Kuan-Yu

2011-01-01

This article investigates 2 possible antecedents of thought confidence and explores the effects of confidence induced before or during ad exposure. The results of the experiments indicate that both consumers' dispositional optimism and spokesperson attractiveness have significant effects on consumers' confidence in thoughts that are generated after viewing the advertisement. Higher levels of thought confidence will influence the quality of the thoughts that people generate, lead to either positively or negatively polarized message processing, and therefore induce better or worse advertising effectiveness, depending on the valence of thoughts. The authors posit the belief-polarization hypothesis to explain these findings.

Constraint on the primordial gravitational waves from the joint analysis of BICEP2 and Planck HFI 353 GHz dust polarization data

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

Cheng, Cheng; Huang, Qing-Guo; Wang, Sai, E-mail: chcheng@itp.ac.cn, E-mail: huangqg@itp.ac.cn, E-mail: wangsai@itp.ac.cn

2014-12-01

We make a joint analysis of BICEP2 and recently released Planck HFI 353 GHz dust polarization data, and find that there is no evidence for the primordial gravitational waves and the bound on the tensor-to-scalar ratio becomes r < 0.083 at 95% confidence level in the base ΛCDM + tensor model. Extending to the model with running of scalar spectral index, the bound is a little bit relaxed to r < 0.116 at 95% confidence level. Our results imply that the inflation model with a single monomial potential is marginally disfavored at around 95% confidence level. Especially, the m{sup 2}φ{supmore » 2}/2 inflation model is disfavored at more than 2σ level. However, the Starobinsky inflation model gives a nice fit.« less

The ICT Level of Confidence of Course Specialists in Distance Education: The Polytechnic University of the Philippines Experience

ERIC Educational Resources Information Center

Sumande, Caroline T.; Castolo, Carmencita L.; Comendador, Benilda Eleanor V.

2016-01-01

The study addressed two questions: what is the ICT level of confidence of the course specialists handling Open University classes, and to what extent do course specialists integrated ICT applications such as word processing, electronic spread sheet, presentation software, YouTube and etc. in their OUS classes? The instruments were administered to…

Intraclass Correlation Coefficients in Hierarchical Design Studies with Discrete Response Variables: A Note on a Direct Interval Estimation Procedure

ERIC Educational Resources Information Center

Raykov, Tenko; Marcoulides, George A.

2015-01-01

A latent variable modeling procedure that can be used to evaluate intraclass correlation coefficients in two-level settings with discrete response variables is discussed. The approach is readily applied when the purpose is to furnish confidence intervals at prespecified confidence levels for these coefficients in setups with binary or ordinal…

A simple Bayesian approach to quantifying confidence level of adverse event incidence proportion in small samples.

PubMed

Liu, Fang

2016-01-01

In both clinical development and post-marketing of a new therapy or a new treatment, incidence of an adverse event (AE) is always a concern. When sample sizes are small, large sample-based inferential approaches on an AE incidence proportion in a certain time period no longer apply. In this brief discussion, we introduce a simple Bayesian framework to quantify, in small sample studies and the rare AE case, (1) the confidence level that the incidence proportion of a particular AE p is over or below a threshold, (2) the lower or upper bounds on p with a certain level of confidence, and (3) the minimum required number of patients with an AE before we can be certain that p surpasses a specific threshold, or the maximum allowable number of patients with an AE after which we can no longer be certain that p is below a certain threshold, given a certain confidence level. The method is easy to understand and implement; the interpretation of the results is intuitive. This article also demonstrates the usefulness of simple Bayesian concepts when it comes to answering practical questions.

Probabilistic Solar Energetic Particle Models

NASA Technical Reports Server (NTRS)

Adams, James H., Jr.; Dietrich, William F.; Xapsos, Michael A.

2011-01-01

To plan and design safe and reliable space missions, it is necessary to take into account the effects of the space radiation environment. This is done by setting the goal of achieving safety and reliability with some desired level of confidence. To achieve this goal, a worst-case space radiation environment at the required confidence level must be obtained. Planning and designing then proceeds, taking into account the effects of this worst-case environment. The result will be a mission that is reliable against the effects of the space radiation environment at the desired confidence level. In this paper we will describe progress toward developing a model that provides worst-case space radiation environments at user-specified confidence levels. We will present a model for worst-case event-integrated solar proton environments that provide the worst-case differential proton spectrum. This model is based on data from IMP-8 and GOES spacecraft that provide a data base extending from 1974 to the present. We will discuss extending this work to create worst-case models for peak flux and mission-integrated fluence for protons. We will also describe plans for similar models for helium and heavier ions.

Cosmological parameter estimation from CMB and X-ray cluster after Planck

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

Hu, Jian-Wei; Cai, Rong-Gen; Guo, Zong-Kuan

We investigate constraints on cosmological parameters in three 8-parameter models with the summed neutrino mass as a free parameter, by a joint analysis of CCCP X-ray cluster data, the newly released Planck CMB data as well as some external data sets including baryon acoustic oscillation measurements from the 6dFGS, SDSS DR7 and BOSS DR9 surveys, and Hubble Space Telescope H{sub 0} measurement. We find that the combined data strongly favor a non-zero neutrino masses at more than 3σ confidence level in these non-vanilla models. Allowing the CMB lensing amplitude A{sub L} to vary, we find A{sub L} > 1 atmore » 3σ confidence level. For dark energy with a constant equation of state w, we obtain w < −1 at 3σ confidence level. The estimate of the matter power spectrum amplitude σ{sub 8} is discrepant with the Planck value at 2σ confidence level, which reflects some tension between X-ray cluster data and Planck data in these non-vanilla models. The tension can be alleviated by adding a 9% systematic shift in the cluster mass function.« less

A model for teaching and learning spinal thrust manipulation and its effect on participant confidence in technique performance.

PubMed

Wise, Christopher H; Schenk, Ronald J; Lattanzi, Jill Black

2016-07-01

Despite emerging evidence to support the use of high velocity thrust manipulation in the management of lumbar spinal conditions, utilization of thrust manipulation among clinicians remains relatively low. One reason for the underutilization of these procedures may be related to disparity in training in the performance of these techniques at the professional and post professional levels. To assess the effect of using a new model of active learning on participant confidence in the performance of spinal thrust manipulation and the implications for its use in the professional and post-professional training of physical therapists. A cohort of 15 DPT students in their final semester of entry-level professional training participated in an active training session emphasizing a sequential partial task practice (SPTP) strategy in which participants engaged in partial task practice over several repetitions with different partners. Participants' level of confidence in the performance of these techniques was determined through comparison of pre- and post-training session surveys and a post-session open-ended interview. The increase in scores across all items of the individual pre- and post-session surveys suggests that this model was effective in changing overall participant perception regarding the effectiveness and safety of these techniques and in increasing student confidence in their performance. Interviews revealed that participants greatly preferred the SPTP strategy, which enhanced their confidence in technique performance. Results indicate that this new model of psychomotor training may be effective at improving confidence in the performance of spinal thrust manipulation and, subsequently, may be useful for encouraging the future use of these techniques in the care of individuals with impairments of the spine. Inasmuch, this method of instruction may be useful for training of physical therapists at both the professional and post-professional levels.

Nurses' confidence in providing and managing care for older persons with depressive symptoms or depression in long-term care facilities: A national survey.

PubMed

Chuang, Yeu-Hui; Kuo, Li-Min

2018-05-24

The prevalence of depressive symptoms among older residents in long-term care facilities (LTCFs) is high. Nurses are the main healthcare providers in LTCFs and also the persons responsible for detecting changes in residents' mental function and providing subsequent care. Therefore, it is necessary to understand nurses' knowledge, attitudes, and confidence regarding care for older residents with depressive symptoms or depression. This study aimed to understand nurses' level of knowledge of late-life depression, attitudes towards depression, and confidence levels in caring for older adults with depressive symptoms or depression in LTCFs. A cross-sectional descriptive and correlational research design was used. A nationwide self-report survey was conducted in 2016. Ultimately, 556 valid questionnaires were returned. The study found that LTCF nurses' knowledge about late-life depression was poor, and they also lacked confidence in managing and caring for older persons with depressive symptoms or depression, but nurses' attitudes towards depression were neutral or slightly positive. Moreover, nurses who had greater confidence in providing care for older persons with depression were those with more positive attitudes towards depression, a greater interest level in taking care of older adults with depression, less late-life depression knowledge, longer nursing experience in LTCFs, and a greater interest level in late-life depression issues, and who had read late-life depression pamphlets or taken courses or classes in late-life depression. The findings suggest an urgent need to develop strategies to improve nurses' late-life depression knowledge and increase their confidence in providing care to older residents with depressive symptoms or depression. © 2018 Australian College of Mental Health Nurses Inc.

Trust increases euthanasia acceptance: a multilevel analysis using the European Values Study.

PubMed

Köneke, Vanessa

2014-12-20

This study tests how various kinds of trust impact attitudes toward euthanasia among the general public. The indication that trust might have an impact on euthanasia attitudes is based on the slippery slope argument, which asserts that allowing euthanasia might lead to abuses and involuntary deaths. Adopting this argument usually leads to less positive attitudes towards euthanasia. Tying in with this, it is assumed here that greater trust diminishes such slippery slope fears, and thereby increases euthanasia acceptance. The effects of various trust indicators on euthanasia acceptance were tested using multilevel analysis, and data from the European Values Study 2008 (N = 49,114, 44 countries). More precisely, the influence of people's general levels of trust in other people, and their confidence in the health care system, were measured--both at the individual and at the country level. Confidence in the state and the press were accounted for as well, since both institutions might monitor and safeguard euthanasia practices. It was shown that the level of trust in a country was strongly positively linked to euthanasia attitudes, both for general trust and for confidence in health care. In addition, within countries, people who perceived their fellow citizens as trustworthy, and who had confidence in the press, were more supportive of euthanasia than their less trusting counterparts. The pattern was, however, not true for confidence in the state and for confidence in the health care system at the individual level. Notably, all confirmative effects held, even when other variables such as religiosity, education, and values regarding autonomy were controlled for. Trust seems to be a noteworthy construct to explain differences in attitudes towards euthanasia, especially when drawing cross-country comparisons. Therefore, it should be added to the existing literature on correlates of euthanasia attitudes.

Emergency department patient satisfaction survey in Imam Reza Hospital, Tabriz, Iran

PubMed Central

2011-01-01

Introduction Patient satisfaction is an important indicator of the quality of care and service delivery in the emergency department (ED). The objective of this study was to evaluate patient satisfaction with the Emergency Department of Imam Reza Hospital in Tabriz, Iran. Methods This study was carried out for 1 week during all shifts. Trained researchers used the standard Press Ganey questionnaire. Patients were asked to complete the questionnaire prior to discharge. The study questionnaire included 30 questions based on a Likert scale. Descriptive and analytical statistics were used throughout data analysis in a number of ways using SPSS version 13. Results Five hundred patients who attended our ED were included in this study. The highest satisfaction rates were observed in the terms of physicians' communication with patients (82.5%), security guards' courtesy (78.3%) and nurses' communication with patients (78%). The average waiting time for the first visit to a physician was 24 min 15 s. The overall satisfaction rate was dependent on the mean waiting time. The mean waiting time for a low rate of satisfaction was 47 min 11 s with a confidence interval of (19.31, 74.51), and for very good level of satisfaction it was 14 min 57 s with a (10.58, 18.57) confidence interval. Approximately 63% of the patients rated their general satisfaction with the emergency setting as good or very good. On the whole, the patient satisfaction rate at the lowest level was 7.7 with a confidence interval of (5.1, 10.4), and at the low level it was 5.8% with a confidence interval of (3.7, 7.9). The rate of satisfaction for the mediocre level was 23.3 with a confidence interval of (19.1, 27.5); for the high level of satisfaction it was 28.3 with a confidence interval of (22.9, 32.8), and for the very high level of satisfaction, this rate was 32.9% with a confidence interval of (28.4, 37.4). Conclusion The study findings indicated the need for evidence-based interventions in emergency care services in areas such as medical care, nursing care, courtesy of staff, physical comfort and waiting time. Efforts should focus on shortening waiting intervals and improving patients' perceptions about waiting in the ED, and also improving the overall cleanliness of the emergency room. PMID:21407998

Is fear perception special? Evidence at the level of decision-making and subjective confidence.

PubMed

Koizumi, Ai; Mobbs, Dean; Lau, Hakwan

2016-11-01

Fearful faces are believed to be prioritized in visual perception. However, it is unclear whether the processing of low-level facial features alone can facilitate such prioritization or whether higher-level mechanisms also contribute. We examined potential biases for fearful face perception at the levels of perceptual decision-making and perceptual confidence. We controlled for lower-level visual processing capacity by titrating luminance contrasts of backward masks, and the emotional intensity of fearful, angry and happy faces. Under these conditions, participants showed liberal biases in perceiving a fearful face, in both detection and discrimination tasks. This effect was stronger among individuals with reduced density in dorsolateral prefrontal cortex, a region linked to perceptual decision-making. Moreover, participants reported higher confidence when they accurately perceived a fearful face, suggesting that fearful faces may have privileged access to consciousness. Together, the results suggest that mechanisms in the prefrontal cortex contribute to making fearful face perception special. © The Author (2016). Published by Oxford University Press.

Enhancing self-management in children with sickle cell disease through playing a CD-ROM educational game: a pilot study.

PubMed

Yoon, Saunjoo L; Godwin, Angela

2007-01-01

To determine whether playing a simple CD-ROM educational game (developed specifically for children with sickle cell disease), improved children's knowledge and confidence in selected symptom management and practice. Twenty-two eligible children completed a pretest to determine knowledge and confidence levels, played the Sickle Cell Slime-O-Rama Game, then completed an identical posttest. Significant increases in knowledge (t = 2.828, p =.010) and confidence (t = 3.759, p =.001) levels between pre- and posttests were identified. It is promising that a simple, interacting CD-ROM game allowed children with sickle cell disease to quickly acquire knowledge about the disease and symptom management, and increased their confidence to apply this new knowledge. Results suggest the high utility of this tailored game to foster active self-management behaviors in this population.

Trauma Collaborative Care Intervention: Effect on Surgeon Confidence in Managing Psychosocial Complications After Orthopaedic Trauma.

PubMed

Wegener, Stephen T; Carroll, Eben A; Gary, Joshua L; McKinley, Todd O; OʼToole, Robert V; Sietsema, Debra L; Castillo, Renan C; Frey, Katherine P; Scharfstein, Daniel O; Huang, Yanjie; Collins, Susan C J; MacKenzie, Ellen J

2017-08-01

The impact of the Trauma Collaborative Care (TCC) program on surgeon confidence in managing the psychosocial sequelae of orthopaedic trauma was evaluated as part of a larger prospective, multisite, cluster clinical trial. We compared confidence and perceived resource availability among surgeons practicing in trauma centers that implemented the TCC program with orthopaedic trauma surgeons in similar trauma centers that did not implement the TCC. Prospective cohort design. Level-I trauma centers. Attending surgeons and fellows (N = 95 Pre and N = 82 Post). Self-report 10-item measure of surgeon confidence in managing psychosocial issues associated with trauma and perceived availability of support resources. Analyses, performed on the entire sample and repeated on the subset of 52 surgeons who responded to the survey at both times points, found surgeons at intervention sites experienced a significantly greater positive improvement (P < 0.05) in their (1) belief that they have strategies to help orthopaedic trauma patients change their psychosocial situation; (2) confidence in making appropriate referrals for orthopaedic trauma patients with psychosocial problems; and (3) belief that they have access to information to guide the management of psychosocial issues related to recovery. Initial data suggest that the establishment of the TCC program can improve surgeons' perceived availability of resources and their confidence in managing the psychosocial sequelae after injury. Further studies will be required to determine if this translates into beneficial patient effects. Therapeutic Level II. See Instructions for Authors for a complete description of levels of evidence.

Final year dental students in New Zealand: Self-reported confidence levels prior to BDS graduation.

PubMed

Murray, C; Chandler, N

2016-12-01

It is expected that the graduating dental student will have acquired the skills and knowledge to confidently treat most circumstances that they may encounter in private practice. The aims of this study were to evaluate final year dental students' self-reported levels of confidence in expected core skills just prior to graduation and to explore their career intentions both directly after graduating as well as in the longer term. After ethical approval was obtained, a survey and participant information sheet was distributed to all final year undergraduate dental students in 2014. Statistical analysis was carried out using SPSS version 22.0 with the alpha value set at 0.05. The response rate was 69% (58/84). Most (44.8%) were going to be working in New Zealand private practices with 34.5% definitely considering specializing. The majority reported high self-confidence levels for sealant restorations (96.6%) and radiography (94.8%), while very few were confident in carrying out soft tissue biopsies (1 .8%) or restoring dental implants and treating medical emergencies (10.5%). Some gender differences were found. The general finding was that most NZ graduates perceived themselves to be confident in managing the most fundamental aspects of general practice. Similar to their counterparts around the world, they will benefit from further mentoring and additional exposure to the more complex clinical tasks such as the restoration of implants and soft tissue biopsies.

Ready for practice? A study of confidence levels of final year dental students at Cardiff University and University College Cork.

PubMed

Honey, J; Lynch, C D; Burke, F M; Gilmour, A S M

2011-05-01

The aim of this study was to describe the self-reported confidence levels of final year students at the School of Dentistry, Cardiff University and at the University Dental School & Hospital, Cork, Ireland in performing a variety of dental procedures commonly completed in primary dental care settings. A questionnaire was distributed to 61 final year students at Cardiff and 34 final year students at Cork. Information requested related to the respondents confidence in performing a variety of routine clinical tasks, using a five-point scale (1=very little confidence, 5=very confident). Comparisons were made between the two schools, gender of the respondent, and whether or not a student intended completing a year of vocational training after graduation. A response rate of 74% was achieved (n=70). The greatest self-reported confidence scores were for 'scale and polish' (4.61), fissure sealants (4.54) and delivery of oral hygiene instruction (4.51). Areas with the least confidence were placement of stainless steel crowns (2.83), vital tooth bleaching (2.39) and surgical extractions (2.26). Students at Cardiff were more confident than those at Cork in performing simple extractions (Cardiff: 4.31; Cork: 3.76) and surgical extractions (Cardiff: 2.61; Cork: 1.88), whilst students in Cork were more confident in caries diagnosis (Cork: 4.24; Cardiff: 3.89) fissure sealing (Cork: 4.76; Cardiff: 4.33) and placement of preventive resin restorations (Cork: 4.68; Cardiff: 4.22).   Final year students at Cardiff and Cork were most confident in simpler procedures and procedures in which they had had most clinical experience. They were least confident in more complex procedures and procedures in which they had the least clinical experience. Increased clinical time in complex procedures may help in increasing final year students' confidence in those areas. © 2011 John Wiley & Sons A/S.

Provider confidence in opioid prescribing and chronic pain management: results of the Opioid Therapy Provider Survey

PubMed Central

Pearson, Amy CS; Moman, Rajat N; Moeschler, Susan M; Eldrige, Jason S; Hooten, W Michael

2017-01-01

Introduction Many providers report lack of confidence in managing patients with chronic pain. Thus, the primary aim of this study was to investigate the associations of provider confidence in managing chronic pain with their practice behaviors and demographics. Materials and methods The primary outcome measure was the results of the Opioid Therapy Provider Survey, which was administered to clinicians attending a pain-focused continuing medical education conference. Nonparametric correlations were assessed using Spearman’s rho. Results Of the respondents, 55.0% were women, 92.8% were white, and 56.5% were physicians. Primary care providers accounted for 56.5% of the total respondents. The majority of respondents (60.8%) did not feel confident managing patients with chronic pain. Provider confidence in managing chronic pain was positively correlated with 1) following an opioid therapy protocol (P=0.001), 2) the perceived ability to identify patients at risk for opioid misuse (P=0.006), and 3) using a consistent practice-based approach to improve their comfort level with prescribing opioids (P<0.001). Provider confidence was negatively correlated with the perception that treating pain patients was a “problem in my practice” (P=0.005). Conclusion In this study, the majority of providers did not feel confident managing chronic pain. However, provider confidence was associated with a protocolized and consistent practice-based approach toward managing opioids and the perceived ability to identify patients at risk for opioid misuse. Future studies should investigate whether provider confidence is associated with measurable competence in managing chronic pain and explore approaches to enhance appropriate levels of confidence in caring for patients with chronic pain. PMID:28652805

THE EFFECTS OF IONIZING RADIATIONS ON THE BIOCHEMISTRY OF MAMMALIAN TISSUES. III. STUDIES ON THE TOXICITY AND MECHANISM OF ACTION OF 2-MERCAPTOETHYLAMINE

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

Hietbrink, B.E.; Yam, K.M.

1964-10-31

A study was conducted to determine the effect of dibenzyline, dihydroergotamine, and adrenal demedullation on the mercaptoethylamine-induced increase in the blood glucose level of adult female rats. The results of these studies showed that the administration of dibenzyline or dihydroergotamine 10 min before 200 mg/kg of MEA inhibited the marked increase in blood glucose levels usually observed following this dose of MEA and substantially reduced the duration of action of this sulfur-containing compound. Adrenal demedullation almost completely prevented the increase in blood glucose levels caused by 200 mg/ kg of MEA. MEA caused a marked hypoglycemia in the demedullated animalsmore » during the latter part of the 5-hr observation period. Results of experiments on the influence of chronic administration of MEA on the blood glucose level of the rat indicated that repeated doses of MEA do not appear to cause drug tolerance. Studies on the influence of MEA on the acetylcholinesterase activity of the brain and serum of rats indicated that the gross toxic symptoms observed following the administration of MEA were not due to cholinesterase inhibition. The results of preliminary studies on the influence of sodium pentobarbital on the acute toxicity of MEA indicated that 25 mg/kg of pentobarbital prevented the lethal effect of doses of MEA as great as 325 mg/kg. (auth)« less

Effects of same-sex versus coeducational physical education on the self-perceptions of middle and high school students.

PubMed

Lirgg, C D

1993-09-01

The purpose of this field experiment was to investigate the effects of attending either a coeducational or a same-sex physical education class on several self-perception variables. Middle and high school youth who had previously been in coeducational classes were assigned to either a same-sex or a new coeducational physical education class for a 10-lesson unit of basketball. Analyses were conducted at both the group and the individual levels. Self-perception variables examined included perceived self-confidence of learning basketball, perceived usefulness of basketball, and perceived gender-appropriateness of basketball. Results of hierarchical linear model group level analyses indicated that the variability in groups for self-confidence could be explained by grade, class type, and the interaction between gender and class type. At the individual level, multivariate results showed that, after the unit, males in coeducational classes were significantly more confident in their ability to learn basketball than males in same-sex classes. Also, males in same-sex classes decreased in confidence from pretreatment to posttreatment. Perceived usefulness of basketball emerged as the strongest predictor of self-confidence for learning basketball for both genders. In general, middle school students preferred same-sex classes, whereas high school students preferred coeducational classes.

Tactical Tomahawk RGM-109E/UGM-109E Missile (TACTOM)

DTIC Science & Technology

2015-12-01

2004: Operational Requirements Document for Tomahawk Weapons Systems Baseline IV signed. TACTOM is authorized in Chapter 2 of this system level ...5124.8 3290.3 6885.4 6390.4 1 APB Breach Confidence Level Confidence Level of cost estimate for current APB: 51% The estimate to support this program...Development Estimate Changes PAUC Production Estimate Econ Qty Sch Eng Est Oth Spt Total 1.365 -0.015 0.324 0.117 0.000 -0.716 0.000 0.104 -0.186 1.179

Warfighter Information Network-Tactical Increment 2 (WIN-T Inc 2)

DTIC Science & Technology

2015-12-01

Company- level . Using equipment mounted on combat platforms, WIN-T Inc 2 delivers a mobile capability that reduces reliance on fixed infrastructure...Cost Estimate Reference Army Cost Position (ACP) dated April 28, 2015 Confidence Level Confidence Level of cost estimate for current APB: 50% The...Development Estimate Changes PAUC Production Estimate Econ Qty Sch Eng Est Oth Spt Total 2.064 -0.055 -0.063 0.016 0.000 0.093 0.000 0.200 0.191 2.255

The integrated model of sport confidence: a canonical correlation and mediational analysis.

PubMed

Koehn, Stefan; Pearce, Alan J; Morris, Tony

2013-12-01

The main purpose of the study was to examine crucial parts of Vealey's (2001) integrated framework hypothesizing that sport confidence is a mediating variable between sources of sport confidence (including achievement, self-regulation, and social climate) and athletes' affect in competition. The sample consisted of 386 athletes, who completed the Sources of Sport Confidence Questionnaire, Trait Sport Confidence Inventory, and Dispositional Flow Scale-2. Canonical correlation analysis revealed a confidence-achievement dimension underlying flow. Bias-corrected bootstrap confidence intervals in AMOS 20.0 were used in examining mediation effects between source domains and dispositional flow. Results showed that sport confidence partially mediated the relationship between achievement and self-regulation domains and flow, whereas no significant mediation was found for social climate. On a subscale level, full mediation models emerged for achievement and flow dimensions of challenge-skills balance, clear goals, and concentration on the task at hand.

Diagnosis of Child Maltreatment: A Family Medicine Physician's Dilemma.

PubMed

Eniola, Kehinde; Evarts, Lori

2017-05-01

Cases of child maltreatment (CM) in the United States remain high, and primary care providers lack the confidence and training to diagnose these cases. This study provides recommendations to improve family medicine physicians' confidence in diagnosing CM. We e-mailed an electronic survey to family medicine residents and physicians practicing in the United States. Responses were collected during August and September 2015. Respondents were asked about their familiarity and competence level regarding the diagnosis of CM. They also were asked about the frequency of their correctly diagnosing CM, timeliness of diagnosis, barriers to a diagnosis or early diagnosis of CM, and receipt of adequate CM training. Of the 420 surveys emailed, 258 (61%) were completed. The majority of respondents stated their self-reported level of competence in diagnosing CM as average or below average, with few (8%) indicating a competence level of above average. A timely diagnosis of child maltreatment was reported by 46% of respondents, whereas 54% were either late (19.2%) in diagnosing or could not recall (34.6%). The barriers to diagnosis cited by responders were inexperience (58%), lack of confidence and certainty (50%), lack of diagnosis protocol (43.3%), lack of confidence in communicating with parents (38.3%), and inadequate training (34.9%). The introduction of CM training into the family medicine residency training curriculum, coupled with the development of a standardized CM diagnosis protocol, may improve self-reported family medicine physicians' confidence and competence levels in diagnosing CM.

A Cross-Sectional Survey on Japanese English-Major University Students' Confidence in the TOEIC Can-Do List

ERIC Educational Resources Information Center

Ozawa, Shinya

2018-01-01

This survey was conducted to investigate how university students gain or lose confidence in English communicative domains over four years at university. Self-assessment has been a useful instrument for measuring learners' English proficiency, and the students in this study were required to self-assess their confidence levels in TOEIC Can-Do list…

Understanding Creativity in the Workplace: An Examination of Individual Styles and Training in Relation to Creative Confidence and Creative Self-Leadership

ERIC Educational Resources Information Center

Phelan, Sherry; Young, Angela M.

2003-01-01

Creative Self-Leadership and Creative Confidence were examined in relation to Creative Style Preference and Training. It was hypothesized that perceptions of Creative Self-Leadership and Creative Confidence were related to personal Creative Style Preferences and that Training would be associated with higher levels of Creative Self-Leadership and…

Easy and Informative: Using Confidence-Weighted True-False Items for Knowledge Tests in Psychology Courses

ERIC Educational Resources Information Center

Dutke, Stephan; Barenberg, Jonathan

2015-01-01

We introduce a specific type of item for knowledge tests, confidence-weighted true-false (CTF) items, and review experiences of its application in psychology courses. A CTF item is a statement about the learning content to which students respond whether the statement is true or false, and they rate their confidence level. Previous studies using…

What Inverted U Can Do for Your Country: A Curvilinear Relationship Between Confidence in the Social System and Political Engagement.

PubMed

Cichocka, Aleksandra; Górska, Paulina; Jost, John T; Sutton, Robbie M; Bilewicz, Michał

2017-08-24

We examined the link between political engagement and the tendency to justify the sociopolitical system. On one hand, confidence in the system should be negatively related to political engagement, insofar as it entails reduced desire for social change; on the other hand, system confidence should also be positively related to political engagement to the extent that it carries an assumption that the system is responsive to citizens' political efforts. Because of the combination of these 2 opposing forces, the motivation for political engagement should be highest at intermediate levels of system confidence. Five studies revealed a negative quadratic relationship between system confidence and normative political engagement. In 2 representative surveys, Polish participants with moderate levels of system confidence were more likely to vote in political elections (Study 1) and to participate in solidarity-based collective action (Study 2). Two field studies demonstrated a negative quadratic relationship between system confidence and actual participation in political demonstrations (gender equality and teachers' protests in Poland; Studies 3 and 4). This pattern of results was further corroborated by analyses of data from 50 countries drawn from the World Value Survey: we observed negative quadratic relationships between system confidence and collective action as well as voting. These relationships were stronger in democratic (vs. nondemocratic) regimes (Study 5). Our results suggest that some degree of system confidence might be useful to stimulate political engagement within the norms of the system. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

Evaluation of dental students’ perception and self-confidence levels regarding endodontic treatment

PubMed Central

Tanalp, Jale; Güven, Esra Pamukçu; Oktay, Inci

2013-01-01

Objectives: The aim of this study was to obtain information about senior dental students’ perceptions and self-confidence levels regarding endodontic practice. Materials and Methods: Anonymous survey forms were handed out to senior students at Yeditepe University, Faculty of Dentistry. The students were asked to score their level of confidence using a 5-point scale and comment about future practices. Results: The response rate of the survey was 88%. 11.9% expressed endodontics as the first branch in terms of difficulty. The majority (90.5%) indicated they would perform root canal treatments within their expertise limit in the future but refer difficult cases to an endodontist. Bleaching of endodontically treated teeth, managing flare-ups, placement of a rubber dam were procedures in which students reported the lowest confidence (2.55 ± 1.17, 3.24 ± 0.96, 3.24 ± 1.19, respectively). On the other hand, students felt the lowest confidence in the treatment of maxillary molars followed by mandibular molars (3.43 ± 1.02 and 3.93 ± 0.97, respectively). Students also reported the lowest confidence in root resorptions, endo-perio lesions, traumas, retreatments and apexifications (2.93 ± 1.16, 3.07 ± 0.89, 3.24 ± 0.85, 3.33 ± 1.7 and 3.36 ± 1.1, respectively). Conclusions: The results showing students’ lower confidence in more challenging aspects of dentistry may be related with the attitude of dental schools to refer these cases to post graduate students and instilling information about these cases on a theoretical basis only. Though there seems to be a tendency for students to refer challenging cases to a specialist in future, authorities should give priority to enhance the way information and experience is conveyed regarding various aspects of endodontic treatment. PMID:24883030

Evaluation of dental students' perception and self-confidence levels regarding endodontic treatment.

PubMed

Tanalp, Jale; Güven, Esra Pamukçu; Oktay, Inci

2013-04-01

The aim of this study was to obtain information about senior dental students' perceptions and self-confidence levels regarding endodontic practice. Anonymous survey forms were handed out to senior students at Yeditepe University, Faculty of Dentistry. The students were asked to score their level of confidence using a 5-point scale and comment about future practices. The response rate of the survey was 88%. 11.9% expressed endodontics as the first branch in terms of difficulty. The majority (90.5%) indicated they would perform root canal treatments within their expertise limit in the future but refer difficult cases to an endodontist. Bleaching of endodontically treated teeth, managing flare-ups, placement of a rubber dam were procedures in which students reported the lowest confidence (2.55 ± 1.17, 3.24 ± 0.96, 3.24 ± 1.19, respectively). On the other hand, students felt the lowest confidence in the treatment of maxillary molars followed by mandibular molars (3.43 ± 1.02 and 3.93 ± 0.97, respectively). Students also reported the lowest confidence in root resorptions, endo-perio lesions, traumas, retreatments and apexifications (2.93 ± 1.16, 3.07 ± 0.89, 3.24 ± 0.85, 3.33 ± 1.7 and 3.36 ± 1.1, respectively). The results showing students' lower confidence in more challenging aspects of dentistry may be related with the attitude of dental schools to refer these cases to post graduate students and instilling information about these cases on a theoretical basis only. Though there seems to be a tendency for students to refer challenging cases to a specialist in future, authorities should give priority to enhance the way information and experience is conveyed regarding various aspects of endodontic treatment.

Nonparametric test of consistency between cosmological models and multiband CMB measurements

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

Aghamousa, Amir; Shafieloo, Arman, E-mail: amir@apctp.org, E-mail: shafieloo@kasi.re.kr

2015-06-01

We present a novel approach to test the consistency of the cosmological models with multiband CMB data using a nonparametric approach. In our analysis we calibrate the REACT (Risk Estimation and Adaptation after Coordinate Transformation) confidence levels associated with distances in function space (confidence distances) based on the Monte Carlo simulations in order to test the consistency of an assumed cosmological model with observation. To show the applicability of our algorithm, we confront Planck 2013 temperature data with concordance model of cosmology considering two different Planck spectra combination. In order to have an accurate quantitative statistical measure to compare betweenmore » the data and the theoretical expectations, we calibrate REACT confidence distances and perform a bias control using many realizations of the data. Our results in this work using Planck 2013 temperature data put the best fit ΛCDM model at 95% (∼ 2σ) confidence distance from the center of the nonparametric confidence set while repeating the analysis excluding the Planck 217 × 217 GHz spectrum data, the best fit ΛCDM model shifts to 70% (∼ 1σ) confidence distance. The most prominent features in the data deviating from the best fit ΛCDM model seems to be at low multipoles  18 < ℓ < 26 at greater than 2σ, ℓ ∼ 750 at ∼1 to 2σ and ℓ ∼ 1800 at greater than 2σ level. Excluding the 217×217 GHz spectrum the feature at ℓ ∼ 1800 becomes substantially less significance at ∼1 to 2σ confidence level. Results of our analysis based on the new approach we propose in this work are in agreement with other analysis done using alternative methods.« less

Sample size, confidence, and contingency judgement.

PubMed

Clément, Mélanie; Mercier, Pierre; Pastò, Luigi

2002-06-01

According to statistical models, the acquisition function of contingency judgement is due to confidence increasing with sample size. According to associative models, the function reflects the accumulation of associative strength on which the judgement is based. Which view is right? Thirty university students assessed the relation between a fictitious medication and a symptom of skin discoloration in conditions that varied sample size (4, 6, 8 or 40 trials) and contingency (delta P = .20, .40, .60 or .80). Confidence was also collected. Contingency judgement was lower for smaller samples, while confidence level correlated inversely with sample size. This dissociation between contingency judgement and confidence contradicts the statistical perspective.

Testosterone and androgen receptor gene polymorphism are associated with confidence and competitiveness in men.

PubMed

Eisenegger, Christoph; Kumsta, Robert; Naef, Michael; Gromoll, Jörg; Heinrichs, Markus

2017-06-01

A contribution to a special issue on Hormones and Human Competition. Studies in non-human animals and humans have demonstrated the important role of testosterone in competitive interactions. Here, we investigated whether endogenous testosterone levels predict the decision to compete, in a design excluding spite as a motive underlying competitiveness. In a laboratory experiment with real monetary incentives, 181 men solved arithmetic problems, first under a noncompetitive piece rate, followed by a competition incentive scheme. We also assessed several parameters relevant to competition, such as risk taking, performance, and confidence in one's own performance. Salivary testosterone levels were measured before and 20min after the competition task using mass spectrometry. Participants were also genotyped for the CAG repeat polymorphism of the androgen receptor gene, known to influence the efficacy of testosterone signaling in a reciprocal relationship to the number of CAG repeats. We observed a significant positive association between basal testosterone levels and the decision to compete, and that higher testosterone levels were related to greater confidence in one's own performance. Whereas the number of CAG repeats was not associated with the choice to compete, a lower number of CAG repeats was related to greater confidence in those who chose to compete, but this effect was attributable to the polymorphism's effect on actual performance. An increase in testosterone levels was observed following the experiment, and this increase varied with self-reported high-school math grades. We expand upon the latest research by documenting effects of the androgen system in confidence in one's own ability, and conclude that testosterone promotes competitiveness without spite. Copyright © 2016 Elsevier Inc. All rights reserved.

Confidence level in venipuncture and knowledge on causes of in vitro hemolysis among healthcare professionals

PubMed Central

Milutinović, Dragana; Andrijević, Ilija; Ličina, Milijana; Andrijević, Ljiljana

2015-01-01

Introduction This study aimed to assess confidence level of healthcare professionals in venipuncture and their knowledge on the possible causes of in vitro hemolysis. Materials and methods A sample of 94 healthcare professionals (nurses and laboratory technicians) participated in this survey study. A four-section questionnaire was used as a research instrument comprising general information for research participants, knowledge on possible causes of in vitro hemolysis due to type of material used and venipuncture technique and specimen handling, as well as assessment of healthcare professionals’ confidence level in their own ability to perform first and last venipuncture. Results The average score on the knowledge test was higher in nurses’ than in laboratory technicians (8.11 ± 1.7, and 7.4 ± 1.5, respectively). The difference in average scores was statistically significant (P = 0.035) and Cohen’s d in the range of 0.4 indicates that there is a moderate difference on the knowledge test among the health care workers. Only 11/94 of healthcare professionals recognized that blood sample collection from cannula and evacuated tube is method which contributes most to the occurrence of in vitro hemolysis, whereas most risk factors affecting occurrence of in vitro hemolysis during venipuncture were recognized. There were no significant differences in mean score on the knowledge test in relation to the confidence level in venipuncture (P = 0.551). Conclusion Confidence level at last venipuncture among both profiles of healthcare staff was very high, but they showed insufficient knowledge about possible factors affecting hemolysis due to materials used in venipuncture compared with factors due to venipuncture technique and handling of blood sample. PMID:26527124

REMOTE RESULTS OF SUCCESSFUL TREATMENT IN MYASTHENIA GRAVIS BY X-RAY IRRADIATION OF THE THYMUS AND SURGICAL TREATMENT OF RADIATION ULCER RESULTING FROM IT (in Russian)

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

Merkova, M.A.; Mordvinova, N.P.; Golland, E.B.

1960-01-01

A case of complete cure of myasthenia gravis by xirradiation (6400 r) of the thymus is described. Radiation ulcer appeared in the sternal area of the skin 8 years after the x-ray therapy and was cured by excision of the injured skin with subsequent plastic operation. (auth)

Metal atom oxidation laser

DOEpatents

Jensen, R.J.; Rice, W.W.; Beattie, W.H.

1975-10-28

A chemical laser which operates by formation of metal or carbon atoms and reaction of such atoms with a gaseous oxidizer in an optical resonant cavity is described. The lasing species are diatomic or polyatomic in nature and are readily produced by exchange or other abstraction reactions between the metal or carbon atoms and the oxidizer. The lasing molecules may be metal or carbon monohalides or monoxides. (auth)

APPLICATION OF HEAVY MEDIA SEPARATION, FLOTATION AND CARBONATE LEACHING TO CONGO ORES. Topical Report

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

Breymann, J.B. III

1951-10-31

The possibility of separating the U minerals from the carbonate minerals in magnesitic-dolomitic U ores from Union Miniere du Haute Katanga, Belgian Congo, by heavy media separation or froth flotation was investigated. Tables are included which show conditions and reagents. Results of tests of carbonate leaching of the whole ore and of the carbonate fiotation products are also tabulated. (auth)

METABOLISM OF RUTHENIUM IN THE RAT. Technical Documentary Report

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

Traynor, J.E.; Leeper, S.W.

1961-12-01

Seventeen Sprague-Dawley rats were injected intramuscularly and intraperitoneally with ruthenium-106. The amount of this isotope was determined daily for 5 weeks in the urine and feces. Animals were sacrificed at intervals and the various organs were analyzed for ruthenium. It was noted from this experiment that the pathways of absorption, metabolism, and excretion are dependent on the route of administration of ruthenium. (auth)

Abnormal /sup 67/Ga-citrate scan of the abdomen in tuberculous peritonitis: case report

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

Steinbach, J.J.

1976-04-01

Tuberculous peritonitis in a 34-year-old alcoholic man was associated with an abnormal /sup 67/Ga-citrate scan of the abdomen. Repeated studies after thorough bowel cleansing revealed no change in the site and shape of the abnormality for 2 to 5 days after injection of the tracer. The inflammatory process may have been responsible for the abnormal scan. (auth)

THE EFFECT OF X-IRRADIATION ON THE PHOSPHOLIPASE AND ANTIOXIDANT ACTIVITIES OF RAT INTESTINAL MUCOSA

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

Ottolenghi, A.; Bernheim, F.

1960-04-01

The antioxidant effect of intestinal mucosa is the result of the liberation of free fatty acid from phospholipid by phospholipase. The fatty acid binds the iron and thus inhibits peroxidation of unsaturated lipids in the test system. The phospholipase and antioxidant activity of rat intestinal mucosa decreases markedly 24 hours postirradiation and to approximately the same extent. (auth)

RETARDED GROWTH OF BONES OF THE FOREARM IN A GIRL FOLLOWING RADIUM THERAPY OF SKIN HEMANGIOMA (in Russian)

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

Mirimova, T.D.

1960-07-01

A 9-month-old girl was subjected to radium therapy of skin hemangioma in the region of the forearm. Thirteen years afterwards there was revealed a considerable impairment in the growth and development of long bones that were within the field of the irradiation, resulting in the formation of a deformed shortened hand with restricted functions. (auth)

OXIDATION YIELD IN FRICKE DOSIMETRY OF P$sup 32$ BETA RADIATION (in Portuguese)

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

Baptista, A.M.; da Silva, J.G.

1962-05-01

A determination was made of the G-value, the number of ions formed by the absorption of 100 ev of energy, in the ferrous sulfate dosimetry of P/sup 32/ beta particles. The value obtained was: G = 15.6 plus or minus 0.07. A discussion is included of the errors which may possibly affect the results. (tr- auth)

Theoretical Interpretation of the Measurement of Diffusion Parameters with Pulsed Neutron Source; INTERPRETAZIONE TEORICA DELLE MISURE DI PARAMETRI DI DIFFUSIONE COL METODO DELLE SORGENTI NEUTRONICHE PULSATE

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

Boffi, V.C.; Molinari, V.G.; Parks, D.E.

1962-05-01

Features of the pulsed neution source theory connected with the measurement of diffusion parameters are discussed. Various analytical procedures for determining the decay constant of the fully thermalized neutron flux are compared. The problem of the diffusion coefficient definition is also considered in some detail. (auth)

AIRCRAFT REACTOR CONTROL SYSTEM APPLICABLE TO TURBOJET AND TURBOPROP POWER PLANTS

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

Gorker, G.E.

1955-07-19

Control systems proposed for direct cycle nuclear powered aircraft commonly involve control of engine speed, nuclear energy input, and chcmical energy input. A system in which these parameters are controlled by controlling the total energy input, the ratio of nuclear and chemical energy input, and the engine speed is proposed. The system is equally applicable to turbojet or turboprop applications. (auth)

STUDY ON THE MECHANICAL WORKING CONDITIONS OF NUCLEAR MATERIALS AS RELATED TO ROLLING. Quarterly Report No. 2

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

Vidal, C.A.M.; Sabato, J.A.

1962-09-01

BS>Descriptions are given of: (a) the design, construction, and adjustment of a Ford plane-strain compression die, to be used in the determination of constrained yield stress curves, and (b) the design and construction of a load cell with strain gages to be used in the measurement of the rolling load during rolling. (auth)

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

Hallerman, G.; Gray, R.J.

An instrument for crushing-strength determinations of uncoated and pyrolytic-carbon-coated fuel particles (50 to 500 mu in diameter) was developed to relate the crushing strength of the particles to their fabricability. The instrument consists of a loading mechanism, load cell, and a power supply-readout unit. The information that can be obtained by statistical methods of the data analysis is illustrated by results on two batches of fuel particles. (auth)

REPORT OF THE QUALIFICATION TESTING OF SNAP 10A FUSISTORS

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

Holtwick, J.S. III; Nowell, V.P.

1963-07-31

Qualification testing of SNAP 10A fusistors was performed. Test operations included: visual inspection, insulation resistance, dielectric strength, and d-c resistance testing prior to subjecting the fusisters to environmental testing; opening-time testing prior to, during, and following vacuum and temperature testing; and insulation resistance, dielectric strength, and d-c resistance testing following environmental applications of temperature, vacuum, and sinusoidal vibration. (auth)

Production of bismuth-204 for medical use

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

Kinsley, M.T.; Lebowitz, E.; Baranosky, J.

1973-11-01

A method is described for producing practical quantities of highpuriti, / sup 204/Bi by, the /sup 206/Pb(p,3n)/sup 204/Bi reaction. A simple elec trolytic separation method with good yield has been developed. The cross section for the above reaction was calculated for 32,MeV protons. Decay data for /supb 204/Bi-/ sup 204m/Pb equilibrium samples are also reported. (auth)

PL-3, PHASE I, TASK 3, RESEARCH AND DEVELOPMENT REPORT

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

Humphries, G. E.

1962-03-12

Results of researeh and development tasks are presented along with recommendations for future development work Work (s reported ofn the areas of plant assembly and relocation, housings and footings, waste heat dissipation, instrumentation, refueling systems, waste disposal, shiceding, core nuclear thermal and hydraulic studies, gaseous waste processing, and critical experiments on a 5 x 5 array of Type 3 fuel elements. (auth)

Process for electroslag refining of uranium and uranium alloys

DOEpatents

Lewis, P.S. Jr.; Agee, W.A.; Bullock, J.S. IV; Condon, J.B.

1975-07-22

A process is described for electroslag refining of uranium and uranium alloys wherein molten uranium and uranium alloys are melted in a molten layer of a fluoride slag containing up to about 8 weight percent calcium metal. The calcium metal reduces oxides in the uranium and uranium alloys to provide them with an oxygen content of less than 100 parts per million. (auth)

HIGH EXPLOSIVE CRATER STUDIES: TUFF

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

Murphey, B.F.

1961-04-01

Spherical charges of TNT, each weighing 256 pounds, were exploded at various depths in tuff to determine apparent crater dimensions in a soft rock. No craters were obtained for depths of burst equal to or greater than 13.3 feet. It was deduced that rock fragments were sufficiently large that charges of greater magnitude should be employed for crater experiments intended as models of nuclear explosions. (auth)

ATTENUATION OF COBALT-60 RADIATION FROM A SOURCE DISTRIBUTED AROUND A CONCRETE BLOCKHOUSE

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

Batter, J.F.; Starbird, A.W.

1961-06-15

Two radiation-shielding experiments were performed upon a simple blockhouse structure. The blockhouse was exposed to a simulated fallout field, and the radiation penetrating the structure was measured. The radiation field was produced by circulating a sealed cobalt-60 source through polyethylene tubing predistributed over an octant centered on the test building. Experimental details are described and results tabulated. (auth)

Intensity of Upward Muon Flux Due to Cosmic-Ray Neutrinos Produced in the Atmosphere

DOE R&D Accomplishments Database

Lee, T. D.; Robinson, H.; Schwartz, M.; Cool, R.

1963-06-01

Calculations were performed to determine the upward going muon flux leaving the earth's surface after production by cosmic-ray neutrinos in the crust. Only neutrinos produced in the earth's atmosphere are considered. Rates of the order of one per 100 sq m/day might be expected if an intermediate boson exists and has a mass less than 2 Bev. (auth)

THEORETICAL BACKGROUND AND DERIVATION OF SELECTED EQUATIONS FROM THE REPORT STUDY OF BLAST EFFECTS IN SOIL

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

Ehlers, O.K.; Grum, A.F.

1959-03-27

An amplification and clarification of the report Study of Blast Effects in Soil by M. A. Chaszeyka and F. B. Porzel of the Armour Research Foundation is presented. The basic thermodynamic relationships that are essential to the understanding of the Armour Report are given, and the more complex equations of the Armour Report are derived. (auth)

Study of the Dynamics of a Pressurized Reactor as Integral Unit for Naval Propulsion; STUDIO DELLA DINAMICA DI UN REATTORE PRESSURIZZATO AD UNITA INTEGRALE PER PROPULSIONE NAVALE

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

Gilardi, E.; Cimorelli, L.

1963-07-01

The dynamic behavior of an integrated, pressurizedwater reactor with natural circulation was investigated both by analog computer techniques and a simplified analytical approach. Hydraulic instabilities due to the core or riser were considered, as well as overall stability and problems arising from heavy sea conditions. (auth)

Personality and Cultural Modeling for Agent-Based Representation of a Terrorist Cell, Phase 1

DTIC Science & Technology

2003-01-01

domains of Neuroticism, Extroversion, Openness, Agreeableness and Conscientiousness into six 5 facets each. The six facets alone provide a level of...confident confident timid--- bold no easily embarrassed---not easily embarrassed doubting---confident OK defensive---open OK inhibited---expressive...working alone pleasure-seeking---not no pleasure-seeking involved---aloof OK seeks out others---seeks isolation talkative---reticent OK spontaneous---not

The Development and Validation of a Tool to Measure Self-Confidence and Anxiety in Nursing Students While Making Clinical Decisions

ERIC Educational Resources Information Center

White, Krista Alaine

2011-01-01

Clinical decision making (CDM) is a cornerstone skill for nurses. Self-confidence and anxiety are two affective influences that impact the learning and adeptness of CDM. Currently, no instruments exist that measure perceived self-confidence and anxiety level of undergraduate nursing students related to CDM. The purpose of this research was to…

Critical Appraisal Skills Among Canadian Obstetrics and Gynaecology Residents: How Do They Fare?

PubMed

Bougie, Olga; Posner, Glenn; Black, Amanda Y

2015-07-01

Evidence-based medicine has become the standard of care in clinical practice. In this study, our objectives were to (1) determine the type of epidemiology and/or biostatistical training being given in Canadian obstetrics and gynaecology post-graduate programs, (2) determine obstetrics and gynaecology residents' level of confidence with critical appraisal, and (3) assess knowledge of fundamental biostatistical and epidemiological principles among Canadian obstetrics and gynaecology trainees. During a national standardized in-training examination, all Canadian obstetrics and gynaecology residents were invited to complete an anonymous cross-sectional survey to determine their levels of confidence with critical appraisal. Fifteen critical appraisal questions were integrated into the standardized examination to assess critical appraisal skills objectively. Primary outcomes were the residents' level of confidence interpreting biostatistical results and applying research findings to clinical practice, their desire for more biostatistics/epidemiological training in residency, and their performance on knowledge questions. A total of 301 of 355 residents completed the survey (response rate=84.8%). Most (76.7%) had little/no confidence interpreting research statistics. Confidence was significantly higher in those with increased seniority (OR=1.93), in those who had taken a previous epidemiology/statistics course (OR=2.65), and in those who had prior publications (OR=1.82). Many (68%) had little/no confidence applying research findings to clinical practice. Confidence increased significantly with increasing training year (P<0.001) and with formal epidemiology training during residency (OR=2.01). The mean score of the 355 residents on the knowledge assessment questions was 69.8%. Increasing seniority was associated with improved overall test performance (P=0.02). Poorer performance topics included analytical study method (9.9%), study design (36.9%), and sample size (42.0%). Most (84.4%) wanted more epidemiology teaching. Canadian obstetrics and gynaecology residents may have the biostatistical and epidemiological knowledge to interpret results published in the literature, but lack confidence applying these skills in clinical settings. Most residents want additional training in these areas, and residency programs should include training in formal curriculums to improve their confidence and prepare them for a lifelong practice of evidence-based medicine.

Methodology for building confidence measures

NASA Astrophysics Data System (ADS)

Bramson, Aaron L.

2004-04-01

This paper presents a generalized methodology for propagating known or estimated levels of individual source document truth reliability to determine the confidence level of a combined output. Initial document certainty levels are augmented by (i) combining the reliability measures of multiply sources, (ii) incorporating the truth reinforcement of related elements, and (iii) incorporating the importance of the individual elements for determining the probability of truth for the whole. The result is a measure of confidence in system output based on the establishing of links among the truth values of inputs. This methodology was developed for application to a multi-component situation awareness tool under development at the Air Force Research Laboratory in Rome, New York. Determining how improvements in data quality and the variety of documents collected affect the probability of a correct situational detection helps optimize the performance of the tool overall.

RADIOACTIVE CONTAMINATION OF FOOD

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

Setter, L.R.

The environment and, consequently, food contains measurable amounts of radionuclides arising primarily from the distribution of nuclear bomb debris over the entire earth's surface. This radioactivity is in addition to natural radioactivity which exists in thc environment. A wealth of information has been gathered on the artificial radioactivity in air, water, vegetation, and soil; on physical and chemical mechanisms of radioaetive movement in the biosphere; and on the biologic behavior of radionuclide uptake by animals and human beings and their distribution in excretions and secretions. Collection of additional information under more carefully designed and executed studies is under way. Theremore » remains the task of marshalling and reviewing the data obtained during active fall-out up to the summer of 1959. With later information collected during a period of substantially no fall-out, the interpretation of these data hopefully will indicate the relative magnitude of physical, chemical, and biologic factors influencing levels in plants and animals, provide a means of predicting future levels, and, most important, permit some evaluation of the effects of nuclear radiation from ingestion of contaminated food as a part of the total effects from fall-out and from natural radioactivity. (auth)« less

EFFECT OF HYPOTHYROIDISM AND THYROID GRAFTS ON LYMPHOID TUMOR DEVELOPMENT IN IRRADIATED C57BL MICE

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

Nagareda, C.S.; Kaplan, H.S.

1959-04-01

Studies on the effect of radiothyroidectomy and thyroid grafts on the incidence of thymic implant lymphomas in thymectomized-irradiated CS7BL mice are reported. Hypothyroidism significantly inhibited thymic implant tumor development in females. A similar reduction of lymphoma incidence in hypothyroid males was not statistically significant. When thyroid activity was restored by grafting normal thyroids to radiothyroidectomized animals, lymphoma incidence returned to the level seen in euthyroid animals. I/sup 131/ uptake measurements were made on a representative number of thyroids and thyroid grafts. There was no significant uptake by the I/sup 131/-treated thyroids. Thyroid grafts were just as active as thyroids frommore » control animals. Body weight decreased significantiy in hypothyroid animals and was restored to control euthyroid levels in radiothyroidectomized animals by thyroid grafts. The possible influence of secondary nutritional and endocrine disturbances on leukemogenesis are discussed; it seems likely that the observed inhibition is attributable to hypothyroidism per se, rather than to secondary influences on nutrition or other endocrine imbalances. Incidental observations on pituitary tumor development in lymphoma- free radiothyroldectomized animals are also reported. Pituitary tumor development was completely prevented by thyroid grafts after radiothyroidectomy. (auth)« less

Effects of lead and hydrocarbons from snowmobile exhaust on brook trout (Salvelinus fontinalis)

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

Adams, E.S.

1975-01-01

Lead and hydrocarbons from snowmobile exhaust were found in the water at high levels during the week following ice-out in a Maine pond. Fingerling brook trout (Salvelinus fontinalis) held in fish cages in the pond showed lead and hydrocarbon uptake. These contaminants accumulated during the previous winter when snowmobile operation on the pond was equivalent to one snowmobile burning 250 liters of fuel per season on a .405 hectare pond with average depth of 1 m. Lead content of the water rose from 4.1 ppb before snowmobiling to 135 ppb at ice-out; exposed trout contained 9 to 16 times moremore » lead than controls. Hydrocarbon levels undetectable prior to snowmobiling reached 10 ppm in the water and 1 ppm in exposed fish. Trout held in aquaria for 3 weeks in melted snow containing three different concentrations of snowmobile exhaust also showed lead and hydrocarbon uptake. Their digestive tract tissue contained the most lead (2 ppm) and gills the least (0.2 ppm). Stamina, as measured by the ability to swim against a current, was significantly less in trout exposed to snowmobile exhaust than in control fish. (auth)« less

Method and system for assigning a confidence metric for automated determination of optic disc location

DOEpatents

Karnowski, Thomas P [Knoxville, TN; Tobin, Jr., Kenneth W.; Muthusamy Govindasamy, Vijaya Priya [Knoxville, TN; Chaum, Edward [Memphis, TN

2012-07-10

A method for assigning a confidence metric for automated determination of optic disc location that includes analyzing a retinal image and determining at least two sets of coordinates locating an optic disc in the retinal image. The sets of coordinates can be determined using first and second image analysis techniques that are different from one another. An accuracy parameter can be calculated and compared to a primary risk cut-off value. A high confidence level can be assigned to the retinal image if the accuracy parameter is less than the primary risk cut-off value and a low confidence level can be assigned to the retinal image if the accuracy parameter is greater than the primary risk cut-off value. The primary risk cut-off value being selected to represent an acceptable risk of misdiagnosis of a disease having retinal manifestations by the automated technique.

JCL Implementation On A Human Spaceflight Program

NASA Technical Reports Server (NTRS)

Kulpa, Vyga; Karpowich, Mike; Abel, Diana; Archiable, Wes; Carson, William

2013-01-01

Joint Confidence Level (JCL) analysis focuses on the integration of traditionally stove-piped programmatic components (schedule, cost and risk) to establish projected resource and schedule requirements at various confidence levels and to identify programmatic cost and schedule risk drivers. SLS Program consists of multiple Prime Contractors managed by independent SLS Elements which are integrated using SE&I and Program Management. SLS further integrates with GSDO and MPCV through ESD integrated working groups.

Safety margins in zircaloy oxidation and embrittlement criteria for emergency core cooling system acceptance

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

Williford, R.E.

1986-09-01

Current emergency core cooling system acceptance criteria for light water reactors specify that, under loss-of-coolant accident (LOCA) conditions, the Baker-Just (BJ) correlation must be used to calculate Zircaloy-steam oxidation, calculated peak cladding temperatures (PCT) must not exceed 1204/sup 0/C, and calculated oxidation must not exceed 17% equivalent cladding reacted (ECR). An appropriately defined minimum margin of safety was estimated for each of these criteria. The currently required BJ oxidation correlation provides margins only over the 1100 to 1500/sup 0/C temperature range at the 95% confidence level. The PCT margins for thermal shock and handling failures are adequate at oxidation temperaturesmore » above 1204/sup 0/C for up to 210 and 160 s, respectively, at the 95% confidence level. The ECR thermal shock and handling margins at the 50 and 95% confidence levels, respectively, range between 2 and 7% ECR for the BJ correlation, but vanish at temperatures above 1100 to 1160/sup 0/C for the best-estimate Cathcart-Pawel correlation. However, use of the Cathcart Pawel correlation for ''design basis'' LOCA calculations can be justified at the 85 to 88% confidence level if cooling rate effects can be neglected.« less

Context retrieval and description benefits for recognition of unfamiliar faces.

PubMed

Jones, Todd C; Robinson, Kealagh; Steel, Brenna C

2018-04-19

Describing unfamiliar faces during or immediately after their presentation in a study phase can produce better recognition memory performance compared with a view-only control condition. We treated descriptions as elaborative information that is part of the study context and investigated how context retrieval influences recognition memory. Following general dual-process theories, we hypothesized that recollection would be used to recall descriptions and that description recall would influence recognition decisions, including the level of recognition confidence. In four experiments description conditions produced higher hit rates and higher levels of recognition confidence than control conditions. Participants recalled descriptive content on some trials, and this context retrieval was linked to an increase in the recognition confidence level. Repeating study faces in description conditions increased recognition scores, recognition confidence level, and context retrieval. Estimates of recollection from Yonelinas' (1994) dual-process signal detection ROCs were, on average, very close to the measures of context recall. Description conditions also produced higher estimates of familiarity. Finally, we found evidence that participants engaged in description activity in some ostensibly view-only trials. An emphasis on the information participants use in making their recognition decisions can advance understanding on description effects when descriptions are part of the study trial context. (PsycINFO Database Record (c) 2018 APA, all rights reserved).

An experimental predeployment training program improves self-reported patient treatment confidence and preparedness of Army combat medics.

PubMed

Gerhardt, Robert T; Hermstad, Erik L; Oakes, Michael; Wiegert, Richard S; Oliver, Jeffrey

2008-01-01

To develop and assess impact of a focused review of International Trauma Life Support (ITLS) and combat casualty care with hands-on procedure training for U.S. Army medics deploying to Iraq. The setting was a U.S. Army Medical Department Center and School and Camp Eagle, Iraq. Investigators developed and implemented a command-approved prospective educational intervention with a post hoc survey. Subjects completed a three-day course with simulator and live-tissue procedure laboratories. At deployment's end, medics were surveyed for experience, confidence, and preparedness in treating various casualty severity levels. Investigators used two-tailed t-test with unequal variance for continuous data and chi-square for categorical data. Twenty-nine medics deployed. Eight completed the experimental program. Twenty-one of 25 (84%) available medics completed the survey including six of the eight (75%) experimental medics. The experimental group reported significantly greater levels of preparedness and confidence treating "minimal," "delayed," and "immediate" casualties at arrival in Iraq. These differences dissipated progressively over the time course of the deployment. This experimental program increased combat medic confidence and perceived level of preparedness in treating several patient severity levels. Further research is warranted to determine if the experimental intervention objectively improves patient care quality and translates into lives saved early in deployment.

Confidence-Based Learning in Investment Analysis

NASA Astrophysics Data System (ADS)

Serradell-Lopez, Enric; Lara-Navarra, Pablo; Castillo-Merino, David; González-González, Inés

The aim of this study is to determine the effectiveness of using multiple choice tests in subjects related to the administration and business management. To this end we used a multiple-choice test with specific questions to verify the extent of knowledge gained and the confidence and trust in the answers. The tests were performed in a group of 200 students at the bachelor's degree in Business Administration and Management. The analysis made have been implemented in one subject of the scope of investment analysis and measured the level of knowledge gained and the degree of trust and security in the responses at two different times of the course. The measurements have been taken into account different levels of difficulty in the questions asked and the time spent by students to complete the test. The results confirm that students are generally able to obtain more knowledge along the way and get increases in the degree of trust and confidence in the answers. It is confirmed as the difficulty level of the questions set a priori by the heads of the subjects are related to levels of security and confidence in the answers. It is estimated that the improvement in the skills learned is viewed favourably by businesses and are especially important for job placement of students.

Two Color Populations of Kuiper Belt and Centaur Objects and the Smaller Orbital Inclinations of Red Centaur Objects

NASA Astrophysics Data System (ADS)

Tegler, S. C.; Romanishin, W.; Consolmagno, G. J.; J., S.

2016-12-01

We present new optical colors for 28 Kuiper Belt objects (KBOs) and 35 Centaur objects measured with the 1.8 m Vatican Advanced Technology Telescope and the 4.3 m Discovery Channel Telescope. By combining these new colors with our previously published colors, we increase the sample size of our survey to 154 objects. Our survey is unique in that the uncertainties in our color measurements are less than half the uncertainties in the color measurements reported by other researchers in the literature. Small uncertainties are essential for discerning between a unimodal and a bimodal distribution of colors for these objects as well as detecting correlations between colors and orbital elements. From our survey, it appears red Centaurs have a broader color distribution than gray Centaurs. We find red Centaurs have a smaller orbital inclination angle distribution than gray Centaurs at the 99.3% confidence level. Furthermore, we find that our entire sample of KBOs and Centaurs exhibits bimodal colors at the 99.4 % confidence level. KBOs and Centaurs with H V > 7.0 have bimodal colors at the 99.96% confidence level and KBOs with H V < 6.0 have bimodal colors at the 96% confidence level.

The assessment of data sources for influenza virologic surveillance in New York State.

PubMed

Escuyer, Kay L; Waters, Christine L; Gowie, Donna L; Maxted, Angie M; Farrell, Gregory M; Fuschino, Meghan E; St George, Kirsten

2017-03-01

Following the 2013 USA release of the Influenza Virologic Surveillance Right Size Roadmap, the New York State Department of Health (NYSDOH) embarked on an evaluation of data sources for influenza virologic surveillance. To assess NYS data sources, additional to data generated by the state public health laboratory (PHL), which could enhance influenza surveillance at the state and national level. Potential sources of laboratory test data for influenza were analyzed for quantity and quality. Computer models, designed to assess sample sizes and the confidence of data for statistical representation of influenza activity, were used to compare PHL test data to results from clinical and commercial laboratories, reported between June 8, 2013 and May 31, 2014. Sample sizes tested for influenza at the state PHL were sufficient for situational awareness surveillance with optimal confidence levels, only during peak weeks of the influenza season. Influenza data pooled from NYS PHLs and clinical laboratories generated optimal confidence levels for situational awareness throughout the influenza season. For novel influenza virus detection in NYS, combined real-time (rt) RT-PCR data from state and regional PHLs achieved ≥85% confidence during peak influenza activity, and ≥95% confidence for most of low season and all of off-season. In NYS, combined data from clinical, commercial, and public health laboratories generated optimal influenza surveillance for situational awareness throughout the season. Statistical confidence for novel virus detection, which is reliant on only PHL data, was achieved for most of the year. © 2016 The Authors. Influenza and Other Respiratory Viruses Published by John Wiley & Sons Ltd.

Probabilistic Analysis for Comparing Fatigue Data Based on Johnson-Weibull Parameters

NASA Technical Reports Server (NTRS)

Vlcek, Brian L.; Hendricks, Robert C.; Zaretsky, Erwin V.

2013-01-01

Leonard Johnson published a methodology for establishing the confidence that two populations of data are different. Johnson's methodology is dependent on limited combinations of test parameters (Weibull slope, mean life ratio, and degrees of freedom) and a set of complex mathematical equations. In this report, a simplified algebraic equation for confidence numbers is derived based on the original work of Johnson. The confidence numbers calculated with this equation are compared to those obtained graphically by Johnson. Using the ratios of mean life, the resultant values of confidence numbers at the 99 percent level deviate less than 1 percent from those of Johnson. At a 90 percent confidence level, the calculated values differ between +2 and 4 percent. The simplified equation is used to rank the experimental lives of three aluminum alloys (AL 2024, AL 6061, and AL 7075), each tested at three stress levels in rotating beam fatigue, analyzed using the Johnson- Weibull method, and compared to the ASTM Standard (E739 91) method of comparison. The ASTM Standard did not statistically distinguish between AL 6061 and AL 7075. However, it is possible to rank the fatigue lives of different materials with a reasonable degree of statistical certainty based on combined confidence numbers using the Johnson- Weibull analysis. AL 2024 was found to have the longest fatigue life, followed by AL 7075, and then AL 6061. The ASTM Standard and the Johnson-Weibull analysis result in the same stress-life exponent p for each of the three aluminum alloys at the median, or L(sub 50), lives

The Sense of Confidence during Probabilistic Learning: A Normative Account.

PubMed

Meyniel, Florent; Schlunegger, Daniel; Dehaene, Stanislas

2015-06-01

Learning in a stochastic environment consists of estimating a model from a limited amount of noisy data, and is therefore inherently uncertain. However, many classical models reduce the learning process to the updating of parameter estimates and neglect the fact that learning is also frequently accompanied by a variable "feeling of knowing" or confidence. The characteristics and the origin of these subjective confidence estimates thus remain largely unknown. Here we investigate whether, during learning, humans not only infer a model of their environment, but also derive an accurate sense of confidence from their inferences. In our experiment, humans estimated the transition probabilities between two visual or auditory stimuli in a changing environment, and reported their mean estimate and their confidence in this report. To formalize the link between both kinds of estimate and assess their accuracy in comparison to a normative reference, we derive the optimal inference strategy for our task. Our results indicate that subjects accurately track the likelihood that their inferences are correct. Learning and estimating confidence in what has been learned appear to be two intimately related abilities, suggesting that they arise from a single inference process. We show that human performance matches several properties of the optimal probabilistic inference. In particular, subjective confidence is impacted by environmental uncertainty, both at the first level (uncertainty in stimulus occurrence given the inferred stochastic characteristics) and at the second level (uncertainty due to unexpected changes in these stochastic characteristics). Confidence also increases appropriately with the number of observations within stable periods. Our results support the idea that humans possess a quantitative sense of confidence in their inferences about abstract non-sensory parameters of the environment. This ability cannot be reduced to simple heuristics, it seems instead a core property of the learning process.

The Sense of Confidence during Probabilistic Learning: A Normative Account

PubMed Central

Meyniel, Florent; Schlunegger, Daniel; Dehaene, Stanislas

2015-01-01

Learning in a stochastic environment consists of estimating a model from a limited amount of noisy data, and is therefore inherently uncertain. However, many classical models reduce the learning process to the updating of parameter estimates and neglect the fact that learning is also frequently accompanied by a variable “feeling of knowing” or confidence. The characteristics and the origin of these subjective confidence estimates thus remain largely unknown. Here we investigate whether, during learning, humans not only infer a model of their environment, but also derive an accurate sense of confidence from their inferences. In our experiment, humans estimated the transition probabilities between two visual or auditory stimuli in a changing environment, and reported their mean estimate and their confidence in this report. To formalize the link between both kinds of estimate and assess their accuracy in comparison to a normative reference, we derive the optimal inference strategy for our task. Our results indicate that subjects accurately track the likelihood that their inferences are correct. Learning and estimating confidence in what has been learned appear to be two intimately related abilities, suggesting that they arise from a single inference process. We show that human performance matches several properties of the optimal probabilistic inference. In particular, subjective confidence is impacted by environmental uncertainty, both at the first level (uncertainty in stimulus occurrence given the inferred stochastic characteristics) and at the second level (uncertainty due to unexpected changes in these stochastic characteristics). Confidence also increases appropriately with the number of observations within stable periods. Our results support the idea that humans possess a quantitative sense of confidence in their inferences about abstract non-sensory parameters of the environment. This ability cannot be reduced to simple heuristics, it seems instead a core property of the learning process. PMID:26076466

A massive experiment on choice blindness in political decisions: Confidence, confabulation, and unconscious detection of self-deception

PubMed Central

Rieznik, Andrés; Moscovich, Lorena; Frieiro, Alan; Figini, Julieta; Catalano, Rodrigo; Garrido, Juan Manuel; Álvarez Heduan, Facundo; Sigman, Mariano; Gonzalez, Pablo A.

2017-01-01

We implemented a Choice Blindness Paradigm containing political statements in Argentina to reveal the existence of categorical ranges of introspective reports, identified by confidence and agreement levels, separating easy from very hard to manipulate decisions. CBP was implemented in both live and web-based forms. Importantly, and contrary to what was observed in Sweden, we did not observe changes in voting intentions. Also, confidence levels in the manipulated replies where significantly lower than in non-manipulated cases even in undetected manipulations. We name this phenomenon unconscious detection of self-deception. Results also show that females are more difficult to manipulate than men. PMID:28196093

AGM-88E Advanced Anti-Radiation Guided Missile (AGM-88E AARGM)

DTIC Science & Technology

2015-12-01

0.0 0.0 Acq O&M 0.0 0.0 -- 0.0 0.0 0.0 0.0 Total 1528.5 1661.1 N/A 2107.4 1861.4 2026.2 2663.7 1 APB Breach Confidence Level Confidence Level of...normal conditions, encountering average levels of technical, schedule, and programmatic risk and external interference. Based on the rigor in methods...SAR Baseline to Current SAR Baseline (TY $M) Initial PAUC Development Estimate Changes PAUC Production Estimate Econ Qty Sch Eng Est Oth Spt Total

An Exploratory Study Investigating the Impact of a Differentiate Framework of Instruction on Generalist Teachers Perceived Confidence to Teach Visual Arts

ERIC Educational Resources Information Center

Eddles-Hirsch, Katrina

2017-01-01

This article reports on an exploratory study that addressed the low confidence levels of 80 generalist primary student teachers enrolled in a mandatory visual arts course. Previous studies in this area have found that a cycle of neglect exists in Australia, as a result of educators' lack of confidence in their ability to teach visual arts. This is…

Factors influencing research engagement: research interest, confidence and experience in an Australian speech-language pathology workforce.

PubMed

Finch, Emma; Cornwell, Petrea; Ward, Elizabeth C; McPhail, Steven M

2013-04-19

Recent initiatives within an Australia public healthcare service have seen a focus on increasing the research capacity of their workforce. One of the key initiatives involves encouraging clinicians to be research generators rather than solely research consumers. As a result, baseline data of current research capacity are essential to determine whether initiatives encouraging clinicians to undertake research have been effective. Speech pathologists have previously been shown to be interested in conducting research within their clinical role; therefore they are well positioned to benefit from such initiatives. The present study examined the current research interest, confidence and experience of speech language pathologists (SLPs) in a public healthcare workforce, as well as factors that predicted clinician research engagement. Data were collected via an online survey emailed to an estimated 330 SLPs working within Queensland, Australia. The survey consisted of 30 questions relating to current levels of interest, confidence and experience performing specific research tasks, as well as how frequently SLPs had performed these tasks in the last 5 years. Although 158 SLPs responded to the survey, complete data were available for only 137. Respondents were more confident and experienced with basic research tasks (e.g., finding literature) and less confident and experienced with complex research tasks (e.g., analysing and interpreting results, publishing results). For most tasks, SLPs displayed higher levels of interest in the task than confidence and experience. Research engagement was predicted by highest qualification obtained, current job classification level and overall interest in research. Respondents generally reported levels of interest in research higher than their confidence and experience, with many respondents reporting limited experience in most research tasks. Therefore SLPs have potential to benefit from research capacity building activities to increase their research skills in order to meet organisational research engagement objectives. However, these findings must be interpreted with the caveats that a relatively low response rate occurred and participants were recruited from a single state-wide health service, and therefore may not be representative of the wider SLP workforce.

The State of Vaccine Confidence 2016: Global Insights Through a 67-Country Survey.

PubMed

Larson, Heidi J; de Figueiredo, Alexandre; Xiahong, Zhao; Schulz, William S; Verger, Pierre; Johnston, Iain G; Cook, Alex R; Jones, Nick S

2016-10-01

Public trust in immunization is an increasingly important global health issue. Losses in confidence in vaccines and immunization programmes can lead to vaccine reluctance and refusal, risking disease outbreaks and challenging immunization goals in high- and low-income settings. National and international immunization stakeholders have called for better monitoring of vaccine confidence to identify emerging concerns before they evolve into vaccine confidence crises. We perform a large-scale, data-driven study on worldwide attitudes to immunizations. This survey - which we believe represents the largest survey on confidence in immunization to date - examines perceptions of vaccine importance, safety, effectiveness, and religious compatibility among 65,819 individuals across 67 countries. Hierarchical models are employed to probe relationships between individual- and country-level socio-economic factors and vaccine attitudes obtained through the four-question, Likert-scale survey. Overall sentiment towards vaccinations is positive across all 67 countries, however there is wide variability between countries and across world regions. Vaccine-safety related sentiment is particularly negative in the European region, which has seven of the ten least confident countries, with 41% of respondents in France and 36% of respondents in Bosnia & Herzegovina reporting that they disagree that vaccines are safe (compared to a global average of 13%). The oldest age group (65+) and Roman Catholics (amongst all faiths surveyed) are associated with positive views on vaccine sentiment, while the Western Pacific region reported the highest level of religious incompatibility with vaccines. Countries with high levels of schooling and good access to health services are associated with lower rates of positive sentiment, pointing to an emerging inverse relationship between vaccine sentiments and socio-economic status. Regular monitoring of vaccine attitudes - coupled with monitoring of local immunization rates - at the national and sub-national levels can identify populations with declining confidence and acceptance. These populations should be prioritized to further investigate the drivers of negative sentiment and to inform appropriate interventions to prevent adverse public health outcomes. Copyright © 2016 The Authors. Published by Elsevier B.V. All rights reserved.

Sex differences in confidence influence patterns of conformity.

PubMed

Cross, Catharine P; Brown, Gillian R; Morgan, Thomas J H; Laland, Kevin N

2017-11-01

Lack of confidence in one's own ability can increase the likelihood of relying on social information. Sex differences in confidence have been extensively investigated in cognitive tasks, but implications for conformity have not been directly tested. Here, we tested the hypothesis that, in a task that shows sex differences in confidence, an indirect effect of sex on social information use will also be evident. Participants (N = 168) were administered a mental rotation (MR) task or a letter transformation (LT) task. After providing an answer, participants reported their confidence before seeing the responses of demonstrators and being allowed to change their initial answer. In the MR, but not the LT, task, women showed lower levels of confidence than men, and confidence mediated an indirect effect of sex on the likelihood of switching answers. These results provide novel, experimental evidence that confidence is a general explanatory mechanism underpinning susceptibility to social influences. Our results have implications for the interpretation of the wider literature on sex differences in conformity. © 2016 The British Psychological Society.

Synthesis of IgM and IgG antibodies in mice irradiated with x rays and immunized with tetanus toxoid (in Polish)

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

Galazka, A.; Albrycht, H.; Aleksandrowicz, J.

1972-01-01

White mice were immunized with adsorbed tetanus toxoid 1 to 2 hrs following irradiation with a dose of 300 R. The antibody response was tested in whole sera 7, 14, 28, and 42 days after immunization; it was found to be delayed and repressed compared with controls. In tests for antibody activity of different classes of immunoglobulins, isolated on Sephadex G-200, the IgM- producing mechanisms were found to be highly radiosensitive; peak of the response was greatly delayed (28 days); and peak titers were threefold lower than in controls. IgG antibody production also was delayed and in the initial periodmore » it was repressed. Six weeks after irradiation, IgG antibody levels were equal in the irradiated and control mice. The present results concerning radiosensitivity of IgM-producing mechanisms are discordant with data of other authors, who immunized animals with other antigens or investigated the metabolism of immunoglobulins in irradiated but nonimmunized animals. (auth)« less

Corrosion evaluation of N reactor pressure tube 1756

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

Larrick, A.P.

1967-10-26

N Reactor Zircaloy-2 pressure tube No. 1756 and its associated ASTM A234 steel nozzles were examined for corrosion and hydrogen content after approximately 300 days exposure in-reactor. Visual examination showed tight, adherent, dull black oxides in the pressure tube except for scratching in the bottom due to sliding of fuel and fuel spacers through the tube during charge- discharge operations. Several fretted areas up to $sup 3$/$sub 8$ inch wide by $sup 1$/$sub 2$ inch long by up to 13 mils deep were observed at the downstream end--these pits were caused by vibration of the fuel spacers against the pressuremore » tube. Hydrogen levels were fairly constant along the tube length with an average of about 19 +- 6 ppm except at one location. At approximately 30 inches from the front end of the tube a sharp peak to a maximum of 58 ppm hydrogen occurred. The reason for the peak is unknown. (auth)« less

ENGINEERING AND CONSTRUCTING THE HALLAM NUCLEAR POWER FACILITY REACTOR STRUCTURE

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

Mahlmeister, J E; Haberer, W V; Casey, D F

1960-12-15

The Hallam Nuclear Power Facility reactor structure, including the cavity liner, is described, and the design philosophy and special design requirements which were developed during the preliminary and final engineering phases of the project are explained. The structure was designed for 600 deg F inlet and 1000 deg F outlet operating sodium temperatures and fabricated of austenitic and ferritic stainless steels. Support for the reactor core components and adequate containment for biological safeguards were readily provided even though quite conservative design philosophy was used. The calculated operating characteristics, including heat generation, temperature distributions and stress levels for full-power operation, aremore » summarized. Ship fabrication and field installation experiences are also briefly related. Results of this project have established that the sodium graphite reactor permits practical and economical fabrication and field erection procedures; considerably higher operating design temperatures are believed possible without radical design changes. Also, larger reactor structures can be similarly constructed for higher capacity (300 to 1000 Mwe) nuclear power plants. (auth)« less

COMMERCIALLY PURE TITANIUM-ARSENIC ALLOYS. CONSTITUTION AND ROOM- TEMPERATURE TENSILE PROPERTIES

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

Haynes, R.

1960-02-01

Titanium--arsenic alloys undergo a peritectoid reaction at approximately 900 deg C, in which beta solid solution reacts with a compound, shown to be Ti/sub 4/As, to form alpha phase containing approximately 0.05 wt.% (0.03 at.%) arsenic. Solubility of arsenic in beta phase increases slowly with temperature, reaching a maximum of approximately 1.6 wt.% (1 at.%) at the eutectic temperature, 1351 plus or minus 15 deg C. The eutectic composition is approximately 17.5 wt.% (12 at.%) arsenic. Up to 1 wt.% arsenic exerts only a slight strengthening effect on commercially pure titanium, accompanied by a small loss in ductility. Solution-treatment atmore » temperatures in the beta field increases the strength above the level obtained by annealing in the ( alpha + Ti/ sub 4/As) field and this strengthening can be further enhanced by ageing at 550 deg C. Optimum properties obtainable are similar to those of low-strength titunium alloys. (auth)« less

Assessment of the uncertainties in the Radiological Protection Institute of Ireland (RPII) radon measurements service.

PubMed

Hanley, O; Gutiérrez-Villanueva, J L; Currivan, L; Pollard, D

2008-10-01

The RPII radon (Rn) laboratory holds accreditation for the International Standard ISO/IEC 17025. A requirement of this standard is an estimate of the uncertainty of measurement. This work shows two approaches to estimate the uncertainty. The bottom-up approach involved identifying the components that were found to contribute to the uncertainty. Estimates were made for each of these components, which were combined to give a combined uncertainty of 13.5% at a Rn concentration of approximately 2500 Bq m(-3) at the 68% confidence level. By applying a coverage factor of k=2, the expanded uncertainty is +/-27% at the 95% confidence level. The top-down approach used information previously gathered from intercomparison exercises to estimate the uncertainty. This investigation found an expanded uncertainty of +/-22% at approximately 95% confidence level. This is good agreement for such independent estimates.

Anchoring effects in the judgment of confidence: semantic or numeric priming?

PubMed

Carroll, Steven R; Petrusic, William M; Leth-Steensen, Craig

2009-02-01

Over the last decade, researchers have debated whether anchoring effects are the result of semantic or numeric priming. The present study tested both hypotheses. In four experiments involving a sensory detection task, participants first made a relative confidence judgment by deciding whether they were more or less confident than an anchor value in the correctness of their decision. Subsequently, they expressed an absolute level of confidence. In two of these experiments, the relative confidence anchor values represented the midpoints between the absolute confidence scale values, which were either explicitly numeric or semantic, nonnumeric representations of magnitude. In two other experiments, the anchor values were drawn from a scale modally different from that used to express the absolute confidence (i.e., nonnumeric and numeric, respectively, or vice versa). Regardless of the nature of the anchors, the mean confidence ratings revealed anchoring effects only when the relative and absolute confidence values were drawn from identical scales. Together, the results of these four experiments limit the conditions under which both numeric and semantic priming would be expected to lead to anchoring effects.

ELECTROCARDIOGRAPHIC CHANGES IN RABBITS SUBJECTED TO THE CHRONIC ACTION OF RADIOACTIVE ZINC DURING INTRAVENOUS ADMINISTRATION OF ADRENALINE AND INHALATION OF AMMONIA (in Russian)

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

Ovakimov, V.G.; Bibikhin, L.N.; Saitanov, A.O.

1963-09-01

The employment of pharmacological loadings (administration of adrenaline and inhalation of ammonia) in rabbits subjected to the chronic action of radioactive zinc (1 and 10 mu C/kg) disclosed changes in the sensitivity of adrenoreactive systems of the myocardium (in adrenaline test) and an altered intensity and duration of reflex bradycardia (in ammonia test). (auth)

Information recovery from high-speed silver halide emulsions containing CRT traces after exposure to nuclear gamma radiation

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

Dittmore, C. H.

1974-03-01

A data recovery problem often occurs in nuclear tests when photographic film used to record CRT traces is unavoidably exposed fo gamma rays before it can be retrieved for developing. Studies made to improve recovery of the CRT data from such film are described. Best results were obtained with a procedure involving reversal processing, silver intensification, dye-coupling development, and duplication. (auth)

NORMAL FLORA OF THE NOSE, THROAT, AND LOWER INTESTINE OF DOGS

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

Clapper, W.E.; Meade, G.H.

1963-03-01

An attempt was made to isolate and identify the complete normal flora of the rectum, nose, and throat of beagles. From the rectal specimens, 20 species of bacteria and 10 species of fungi were isolated and identified, The organisms were similar to those found in the human intestine. Escherichia coli, Streptococcus mitis, enterococci, S. lactis, Bacillus species, and coliforms other than E. coli were most frequently encountered. (auth)

All-magnetic extraction for cyclotron beam reacceleration

DOEpatents

Hudson, E.D.; Mallory, M.L.

1975-07-22

An isochronous cyclotron can be modified to provide an initial electron stripping stage, a complete acceleration of the stripped ions through the cyclotron to a first energy state, means for returning the ions to an intermediate cyclotron orbit through a second stripping stage, further acceleration of the now higher energy stripped ions through the cyclotron to their final energy, and final extraction of the ions from the cyclotron. (auth)

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

Owens, J.J.; Nejedlik, J.F.; Vogt, J.W.

The SNAP II system consists of a reactor heat source, a mercury Rankine engine, and an alternator. The problems involved in selecting materials for the SNAP II mercury system were studied. A discussion is given of the corrosion mechanisms involved in a system in which mercury is the working fluid. The problem resolves itself into selecting materials with the best combination of engineering properties for the application and highest resistance to mercury corrosion at the anticipated temperature. (auth)

Radioactive wastes in institutions of biological research (in French)

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

Kirchmann, R.

1973-01-01

The different radioelements used in the Belgian biological research laboratories and the activities used are indicated. The types of utilization of / sup 3/H, /sup 14/C, /sup 32/P, /sup 125/I, /sup 131/I, /sup 85/Sr, and /sup 226/ Ra and the handling procedures of contaminated wastes of these radionuclides are described. Finally, the release in situ'' was estimated for all the laboratories that were investigated. (auth)

Radioactive wastes in biological research institutions (in French)

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

Kirchmann, R.

1973-01-01

The different radioelements used in the Belgian Biological Research Laboratories and the activities used are indicated. The types of utilization of / sup 3/H, /sup 14/C, /sup 32/P, /sup 125/I, /sup 131/I, /sup 85/Sr, and /sup 226/ Ra are given. The handling procedures for contaminated wastes of these radionuclides are described. The release of radioactive waste by all the laboratories which were investigated is estimated. (auth)

MAGNETIC DEFLEXION OF ELECTRON BEAMS WITHOUT ASTIGMATISM

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

Archard, G.D.; Mulvey, T.

1958-09-01

An electron beam passing through a magnetic defiecting field is, in general, subject to astigmatism. For circular pole pieces, this takes the form of focusing in the plane of deflection; for square pole pieces, focusing perpendicular to the pinne of deflection. Deflection free from astigmatism can be achieved by means of circular pole-pieces from which semicircular portions have been removed. An application of this to reflection electron microsccpy is described. (auth)

RESEARCH AND DEVELOPMENT ON ADVANCED GRAPHITE MATERIALS. Final Report

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

None

1962-04-01

A review is given of activities over the period October 15, 1960 to October 15, 1961 on a three year program for the research and development of materials, experimental techniques, and equipment for development of premium quality, reproducible graphite-base materials suitable for missile and astronautic applications. Progress is reported on research and development in the study areas of raw materials, fabrication, and material characterization and evaluation. (auth)

PROBLEMS OF THE OPTICAL MODEL FOR DEUTERONS. II. EXPERIMENTS FOR DETERMINATION OF THE PARAMETERS OF THE OPTICAL POTENTIAL FOR DEUTERONS (in Polish)

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

Grotowski, K.

1963-01-01

An experiment for determination of the parameters of the optical potential for deuterons is presented. Total reaction cross sections for the interaction of deuterons with nuclei were determined by evaluating the cross sections for the emission of charged particles and neutrons. The angular distributions for the elastic scattering of deuterons were also measured. (auth)

Investigation into the Susceptibility of Corrosion Resistant Alloys to Biocorrosion

DTIC Science & Technology

1994-06-30

Fro Bes AvialeC p INVESTIGATION INTO THE SUSCEPTIBILITY OF CORROSION RESISTANT ALLOYS TO BIOCORROSION Dr. Clive R.Clayton Dept.of Materials Science...QUAW jjqMCMD 9 INVESTIGATION INTO THE SUSCEPTIBILTY OF CORROSION RESISTANT ALLOYS TO BIOCORROSION Dr.Clive R.Clayton Dept. of Materials Science & Engg...TITLE (Mmkude Secwty camuf*tigon Investigation into the Susceptibility of Corrosion ’Resistant Alloys to Biocorrosion IL. PERSONAL AUThOR(S) Clive R

Extraction electrode geometry for a calutron

DOEpatents

Veach, A.M.; Bell, W.A. Jr.

1975-09-23

This patent relates to an improved geometry for the extraction electrode and the ground electrode utilized in the operation of a calutron. The improved electrodes are constructed in a partial-picture-frame fashion with the slits of both electrodes formed by two tungsten elongated rods. Additional parallel spaced-apart rods in each electrode are used to establish equipotential surfaces over the rest of the front of the ion source. (auth)

RADIOPHOSPHORUS IN THE DIFFERENTIAL DIAGNOSIS OF PIGMENTARY NEOPLASMS OF THE EYE (in Russian)

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

Voznyuk, E.I.; Grusha, O.V.

Radiophosphorus was used for the diagnosis of pigmentary formattons of the eye tn 38 patients. A negative radiological test was obtatned tn 24 patients. Dynamic clinical observations confirmed the absence of malignization of the pigmentary formation. In 15 patients the radiological test was positive. It ts concluded that the technique may be useful for the detection of early forms of malignization of the nevus. (auth)

A CLASSICAL ANALOG FOR RELATIVISTIC CONTRACTION

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

Epstein, L.

1963-12-01

It is possible to construct a mechanical model that demonstrates the Fitzgerald contraction. An equation is derived to describe the shape of a dimple moving across an elastic membrane, clearly showing the analogy to the field of a point charge in free space, including the relativistic contraction in the direction of motion. This model should suggest some reason to the inquiring mind that persists in wondering---- what really makes it shrink.'' (auth)

Heat exchanger tube mounts

DOEpatents

Wolowodiuk, W.; Anelli, J.; Dawson, B.E.

1974-01-01

A heat exchanger in which tubes are secured to a tube sheet by internal bore welding is described. The tubes may be moved into place in preparation for welding with comparatively little trouble. A number of segmented tube support plates are provided which allow a considerable portion of each of the tubes to be moved laterally after the end thereof has been positioned in preparation for internal bore welding to the tube sheet. (auth)

Dense Medium Ore Concentrates of Bois-Noirs; MINERAIS DES BOIS NOIRS CONCENTRES DE MILIEU DENSE

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

Le Bris, J.; Leduc, M.

1959-01-01

The chemical treatment of uranium concentrates of BoisNoirs ore obtained by heavy medium are discussed. The first part deals with sulfuric acid attack on the concentrate, and the second part with the separation of the solution from residues by filtration. A third part deals with this separation by decantation. The fourth part deals with the carbonation of the pickling solutions obtained. (auth)

Program for Calculating the Cubic and Fifth Roots of a Number of Newton's Method (610 IBM Electronic Computer); PROGRAMMA PER IL CALCOLO DELLE RADICI TERZA E QUINTA DI UN NUMERO, COL METODO DI NEWTON (CALCOLATORE ELETTRONICO IBM 610)

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

Giucci, D.

1963-01-01

A program was devised for calculating the cubic and fifth roots of a number of Newton's method using the 610 IBM electronic computer. For convenience a program was added for obtaining n/sup th/ roots by the logarithmic method. (auth)

CONTINUOUS ROTATION SCATTERING CHAMBER

DOEpatents

Verba, J.W.; Hawrylak, R.A.

1963-08-01

An evacuated scattering chamber for use in observing nuclear reaction products produced therein over a wide range of scattering angles from an incoming horizontal beam that bombards a target in the chamber is described. A helically moving member that couples the chamber to a detector permits a rapid and broad change of observation angles without breaching the vacuum in the chamber. Also, small inlet and outlet openings are provided whose size remains substantially constant. (auth)

Regional geology and geophysics of the Jemez Mountains

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

West, F.G.

1973-08-01

The western margin of the Rocky Mountain tectonic belt is the initial site for the Los Alamos Geothermal Project. lgneous activity in the area culminated with the formation of a collapsed volcanic caldera and the deposition of thick beds of tuff. Geophysical studies indicate that the region is one of relatively highterrestrial heat flow, low-crustal density, low-crustal seismic velocities, low-crustal magnetoelectric impedance, and thin crust. 34 references. (auth)

MEASUREMENT OF TIME INTERVALS FOR TIME CORRELATED RADIOACTIVE DECAY

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

Lindeman, H.; Mornel, E.; Galil, U.

1960-11-01

The distribution of time intervals between successive counts was measured for radioactive decay in the thorium series. The measurements showed that the classical Marsden-Barratt law does not apply to this case of timecorrelated decay. They appeared, however, to be in agreement with the theory of Lindeman-Rosen, taking into account the fact that the counter receives only the radiation emitted in a solid angle near to 2 pi . (auth)

IMPROVEMENT OF THE EXTRACTION SEPARATION OF URANIUM AND ZIRCONIUM USING ZIRCONIUM-MASKING REAGENTS (in German)

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

Kyrs, M.; Caletka, R.; Selucky, P.

1963-12-01

The masking capacities of a series of reagents were studied in the zirconium extraction with tributyl phosphate solution in the presence of nitric acid. It was established that with many reagents an improvement of the separation of uranium from zirconium could be obtained. The efficiency of the reagents increases in the series tannin, oxalic acid, tiron, pyrogallol, and Arsenazo I. (tr-auth)

CALIBRATION OF INSTRUMENTS FOR RADIATION MEASUREMENTS FROM LOFTED VEHICLES

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

Banks, W.O.

1962-05-01

The designs and developments accomplished by the Air Proving Ground Certer in support of Project TRUMP are considered. Project TRUMP pertains to the design and developmert of methods for measuring radiation from lofted vehicles. Several methods of simulating the space environment, for purposes of ground calibration of instruments to be lofted, are proposed. A mathematical approach, similar to that used by early Smithsonian solar constant seekers, is presented. (auth)

COST FUNCTION STUDIES FOR POWER REACTORS

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

Heestand, J.; Wos, L.T.

1961-11-01

A function to evaluate the cost of electricity produced by a nuclear power reactor was developed. The basic equation, revenue = capital charges + profit + operating expenses, was expanded in terms of various cost parameters to enable analysis of multiregion nuclear reactors with uranium and/or plutonium for fuel. A corresponding IBM 704 computer program, which will compute either the price of electricity or the value of plutonium, is presented in detail. (auth)

PWR PRELIMINARY DESIGN FOR PL-3

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

Humphries, G. E.

1962-02-28

The pressurized water reactor preliminary design, the preferred design developed under Phase I of the PL-3 contract, is presented. Plant design criteria, summary of plant selection, plant description, reactor and primary system description, thermal and hydraulic analysis, nuclear analysis, control and instrumentatlon description, shielding description, auxiliary systems, power plant equipment, waste dispusal, buildings and tunnels, services, operation and maintenance, logistics, erection, cost information, and a training program outline are given. (auth)

Ceramic Electron Multiplier

DOE PAGES

Comby, G.

1996-10-01

The Ceramic Electron Multipliers (CEM) is a compact, robust, linear and fast multi-channel electron multiplier. The Multi Layer Ceramic Technique (MLCT) allows to build metallic dynodes inside a compact ceramic block. The activation of the metallic dynodes enhances their secondary electron emission (SEE). The CEM can be used in multi-channel photomultipliers, multi-channel light intensifiers, ion detection, spectroscopy, analysis of time of flight events, particle detection or Cherenkov imaging detectors. (auth)

Detection of radon emission at the edges of lunar maria with the apollo alpha-particle spectrometer

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

Gorenstein, P.; Golub, L.; Bjorkholm, P.

1974-02-01

The distribution of radioactive /sup 210/Po, a decay product of /sup 222/ Rn, shows enhanced concentrations at the edges of lunar maria. Enhancements are seen at the edges of Mare Fecunditatis, Mare Crisium, Mare Smythii, Mare Tranquillitatis, Mare Nubium, Mare Cognitum, and Oceanus Procellarum. The observation is indicative of the transient emission of radon gas from the perimeters of lunar maria. (auth)

Unlinkable Serial Transactions

DTIC Science & Technology

1997-01-01

the result of blinding X, for use with the appropriate signature key. 3.3 Registration Message 1 C ! V : fPayment ;Kaudit;CreditAuth;KCV gV ; [Request...anonymous e-cash as presented by Chaum et al. [6], is characterized by several requirements [13]: independent of physical requirements, unforgeable and...penalties can then be applied that make double spending not cost e ective. Chaum’s notion of blinding [5] is a fundamental technique used in

CALCULATION OF COOLING TOWERS AND INJECTION COOLERS BY MEANS OF AN EVAPORATION METHOD (in German)

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

Spangemacher, K.

1958-05-01

Calculation and evaluation of cooling towers, as recommended by Merkel, are critically examined. The usual methods of practical calculation are explained as well as a new procedure which combines great accuracy with brevity. Merkel's method is extended to injection coolers for gas and compressed air. It was discussed whether the dimensionless ''evaporation coefficient'' should be called the''Merkel coefficient.'' (tr-auth)

EFFECT OF RADIOACTIVE ISOTOPE ON THE FLOWERING BEHAVIOUR OF JUTE (CORCHORUS OLITORIUS LINN.)

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

Das, A.; Choudhury, A.K.R.

1962-03-01

Following irradiation with S/sup 35/, the dispersion of the flowering time of jute was increased in the first generation. The genetic variability of the treated population in the second generation was found to be greater than that of control population by two and a half times. But owing to the largeness of environmental variation, poor heritability of the flowering time was noticed. (auth)

A FLEXIBLE POLYTHENE GLOVE BOX

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

Hughes, A.

1957-11-01

The need for a glove box capable of maintaining an inert atmosphere arose during the sampling and analysis of the alkali metals. The conventional rigid glove box was found to be unsuitable in practice and also inefficient in theory. The requirement was met by improvising a flexible glove box from thin polythene sheet. The alternative solution a this problem would have required an expensive vacuum glove box with its attendant pumping unit. (auth)

Relativistic electron beam device

DOEpatents

Freeman, J.R.; Poukey, J.W.; Shope, S.L.; Yonas, G.

1975-07-01

A design is given for an electron beam device for irradiating spherical hydrogen isotope bearing targets. The accelerator, which includes hollow cathodes facing each other, injects an anode plasma between the cathodes and produces an approximately 10 nanosecond, megajoule pulse between the anode plasma and the cathodes. Targets may be repetitively positioned within the plasma between the cathodes, and accelerator diode arrangement permits materials to survive operation in a fusion power source. (auth)

A STUDY OF THE RADIATION-INDUCED SOFTENING OF PLANT TISSUES. Report No. 7 (Progress) for Period July 1, 1959-September 30, 1959

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

Kertesz, Z.I.

1961-10-31

Studies of the effect of gamma irradiation on four varieties of sweet cherries indicate an average radiation-induced softening threshold dosage of about 53 x lO/sup 3/ rad and about a 30% softening at the recommended 232 x lO/ sup 3/ rad "pasteurization dosage." No detrimental flavor or color changes and only slight and transient respiratory abnormalities were found. (auth) l667 At 75/sup o/F there was no eradication or arrestment of all fungi within fresh Michigan blueberries at any of the doses tested between 0.5 to 5 x 10/sup 5/ rads. After 28 days storage, all berries showed fungal growth inmore » nearly equal amounts to the non-irradiated controls regardless of the dose applied. When stored at 75/ sup o/F injury to the berries in the form of softening and produciion of abnormal red color in the flesh occurred at 5 x lO/sup 5/ and 3 x l0/sup 5/ rads after 16 days and only slightly at 2.5 x lO/sup 5/ rads after 28 days. In vitro inactivation of some blueberry decay pathogens was well below 5 x lO/sup 5/ rads. (auth)« less

A model for teaching and learning spinal thrust manipulation and its effect on participant confidence in technique performance

PubMed Central

Wise, Christopher H.; Schenk, Ronald J.; Lattanzi, Jill Black

2016-01-01

Background Despite emerging evidence to support the use of high velocity thrust manipulation in the management of lumbar spinal conditions, utilization of thrust manipulation among clinicians remains relatively low. One reason for the underutilization of these procedures may be related to disparity in training in the performance of these techniques at the professional and post professional levels. Purpose To assess the effect of using a new model of active learning on participant confidence in the performance of spinal thrust manipulation and the implications for its use in the professional and post-professional training of physical therapists. Methods A cohort of 15 DPT students in their final semester of entry-level professional training participated in an active training session emphasizing a sequential partial task practice (SPTP) strategy in which participants engaged in partial task practice over several repetitions with different partners. Participants’ level of confidence in the performance of these techniques was determined through comparison of pre- and post-training session surveys and a post-session open-ended interview. Results The increase in scores across all items of the individual pre- and post-session surveys suggests that this model was effective in changing overall participant perception regarding the effectiveness and safety of these techniques and in increasing student confidence in their performance. Interviews revealed that participants greatly preferred the SPTP strategy, which enhanced their confidence in technique performance. Conclusion Results indicate that this new model of psychomotor training may be effective at improving confidence in the performance of spinal thrust manipulation and, subsequently, may be useful for encouraging the future use of these techniques in the care of individuals with impairments of the spine. Inasmuch, this method of instruction may be useful for training of physical therapists at both the professional and post-professional levels. PMID:27559284

A proposal of the diagnosis-dynamic characteristic (DDC) model describing the relation between search time and confidence levels for a dichotomous judgment, and its application to ROC curve generation

NASA Astrophysics Data System (ADS)

Matsumoto, Toru; Fukuda, Nobuo; Furukawa, Akira; Suwa, Koji; Wada, Shinichi; Matsumoto, Mitsuomi; Sone, Shusuke

2006-03-01

When physicians inspect an image, they make up a certain degree of confidence that the image are abnormal; p(t), or normal; n(t)[n(t)=1-p(t)]. After infinite time of the inspection, they reach the equilibrium levels of the confidence of p*=p(∞) and n*=n(∞). There are psychological conflicts between the decisions of normal and abnormal. We assume that the decision of "normal" is distracted by the decision of "abnormal" by a factor of k(1 + ap), and in an inverse direction by a factor of k(1 + bn), where k ( > 0) is a parameter that relates with image quality and skill of the physicians, and a and b are unknown constants. After the infinite time of inspection, the conflict reaches the equilibrium, which satisfies the equation, k(1 + ap*)n* = k(1 + bn*)p*. Here we define a parameter C, which is 2p*/[p*(1 - p*)]. After the infinite time of inspection, the conflict reaches the equilibrium, which satisfies t that changes in the confidence level with the time (dp/dt) is proportional to [k(1+ap)n - k(1+bn)p], i.e. k[-cp2 + (c - 2)p + 1]. Solving the differential equation, we derived the equation; t(p) and p(t) depending with the parameters; k, c, S. S (0-1) is the value arbitrary selected and related with probability of "abnormal" before the image inspection (S = p(0)). Image reading studies were executed for CT images. ROC curves were generated both by the traditional 4-step score-based method and by the confidence level; p estimated from the equation t(p) of the DDC model using observed judgment time. It was concluded that ROC curves could be generated by measuring time for dichotomous judgment without the subjective scores of diagnostic confidence and applying the DDC model.

Social support and the likelihood of maintaining and improving levels of physical activity: the Whitehall II Study.

PubMed

Kouvonen, Anne; De Vogli, Roberto; Stafford, Mai; Shipley, Martin J; Marmot, Michael G; Cox, Tom; Vahtera, Jussi; Väänänen, Ari; Heponiemi, Tarja; Singh-Manoux, Archana; Kivimäki, Mika

2012-08-01

Evidence on the association between social support and leisure time physical activity (LTPA) is scarce and mostly based on cross-sectional data with different types of social support collapsed into a single index. The aim of this study was to investigate whether social support from the closest person was associated with LTPA. Prospective cohort study of 5395 adults (mean age 55.7 years, 3864 men) participating in the British Whitehall II study. Confiding/emotional support and practical support were assessed at baseline in 1997-99 using the Close Persons Questionnaire. LTPA was assessed at baseline and follow-up in (2002-04). Baseline covariates included socio-demographics, self-rated health, long-standing illnesses, physical functioning and common mental disorders. Among participants who reported recommended levels of LTPA at baseline, those who experienced high confiding/emotional support were more likely to report recommended levels of LTPA at follow-up [odds ratio (OR): 1.39, 95% confidence interval (CI): 1.12-1.70 in a model adjusted for baseline covariates]. Among those participants who did not meet the recommended target of LTPA at baseline, high confiding/emotional support was not associated with improvement in activity levels. High practical support was associated with both maintaining (OR: 1.34, 95% CI: 1.10-1.63) and improving (OR: 1.25, 95% CI: 1.02-1.53) LTPA levels. These findings suggest that emotional and practical support from the closest person may help the individual to maintain the recommended level of LTPA. Practical support also predicted a change towards a more active lifestyle.

The Role of Residential Early Parenting Services in Increasing Parenting Confidence in Mothers with A History of Infertility.

PubMed

Khajehei, Marjan; Finch, Lynette

2016-01-01

Mothers with a history of infertility may experience parenting difficulties and challenges. This study was conducted to investigate the role of residential early parenting services in increasing parenting confidence in mothers with a history of infertility. This was a retrospective chart review study using the quantitative data from the clients attending the Karitane Residential Units and Parenting Services (known as Karitane RUs) during 2013. Parenting confidence (using Karitane Parenting Confidence Scale-KPCS), depression, demographics, reproductive and medical history, as well as child's information were assessed from a sample of 27 mothers who had a history of infertility and who attended the Karitane RUs for support and assistance. The data were analyzed using SPSS version 19. More than half of the women (59.3%) reported a relatively low level of parenting confidence on the day of admission. The rate of low parenting confidence, however, dropped to 22.2% after receiving 4-5 days support and training in the Karitane RUs. The mean score of the KPCS increased from 36.9 ± 5.6 before the intervention to 41.1 ± 3.4 after the intervention, indicating an improvement in the parenting confidence of the mothers after attending the Karitane RUs (P<0.0001). No statistically significant association was found between maternal low parenting confidence with parental demographics (including age, country of birth, and employment status), a history of help-seeking, symptoms of depression, as well as child's information [including gender, age, siblings, diagnosis of gastroesophageal reflux disease (GORD) and use of medication]. Having a child after a period of infertility can be a stressful experience for some mothers. This can result in low parenting confidence and affect parent-child attachment. Our findings emphasized on the role of the residential early parenting services in promoting the level of parenting confidence and highlighted the need for early recognition and referral of the mothers with a history of infertility to such centers.

Engineering Improved Balance Confidence in Older Adults With Complex Health Care Needs: Learning From the Muscling Up Against Disability Study.

PubMed

Hetherington, Sharon; Henwood, Tim; Swinton, Paul; Keogh, Justin; Gardiner, Paul; Tuckett, Anthony; Rouse, Kevin

2018-04-05

To investigate the associations of balance confidence with physical and cognitive markers of well-being in older adults receiving government-funded aged care services and whether progressive resistance plus balance training could positively influence change. Intervention study. Community-based older adult-specific exercise clinic. Older adults (N=245) with complex care needs who were receiving government-funded aged care support. Twenty-four weeks of twice weekly progressive resistance plus balance training carried out under the supervision of accredited exercise physiologists. The primary measure was the Activity-specific Balance Confidence Scale. Secondary measures included the Short Physical Performance Battery; fall history gathered as part of the health history questionnaire; hierarchical timed balance tests; Geriatric Anxiety Index; Geriatric Depression Scale; Fatigue, Resistance, Ambulation, Illness, Loss of Weight scale; and EuroQoL-5 dimension 3 level. At baseline, better physical performance (r=.54; P<.01) and quality of life (r=.52; P<.01) predicted better balance confidence. In contrast, at baseline, higher levels of frailty predicted worse balance confidence (r=-.55; P<.01). Change in balance confidence after the exercise intervention was accompanied by improved physical performance (+12%) and reduced frailty (-11%). Baseline balance confidence was identified as the most consistent negative predictor of change scores across the intervention. This study shows that reduced physical performance and quality of life and increased frailty are predictive of worse balance confidence in older adults with aged care needs. However, when a targeted intervention of resistance and balance exercise is implemented that reduces frailty and improves physical performance, balance confidence will also improve. Given the influence of balance confidence on a raft of well-being determinants, including the capacity for positive physical and cognitive change, this study offers important insight to those looking to reduce falls in older adults. Copyright © 2018 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

Senior Medical Student Mock Interview Program in Pediatrics.

PubMed

Multerer, Sara; Carothers, Becky; Patel, Pradip D; Ziegler, Craig; Rowland, Michael; Davis, Deborah Winders

2016-02-01

Residency interviews play an integral part in medical residency placement. We aimed to develop and evaluate a mock interview program for fourth-year medical students interested in a pediatric specialty. A mock interview program for fourth-year medical students interested in pediatrics was developed and implemented. Preinterview quantitative data and postinterview qualitative data were collected. Fifty-nine students completed the program across three consecutive academic years. Preinterview surveys were completed regarding comfort and confidence levels specific to aspects of the interview process. Descriptive analyses were used. In addition, a focus group was held with nine of the participating students to obtain qualitative data via a paper blog process. Themes in student responses were identified through constant comparative analysis. Before the mock interview, students were most uncomfortable with introductory and closing remarks and their confidence levels varied by topic. A thematic analysis of focus group data identified five themes (preparation, stress reduction, interview process familiarity, confidence of skills, and receiving feedback) for which the mock interviews were most helpful. Implementation of a mock interview program was feasible and acceptable for senior medical students and may improve comfort and confidence levels in the residency interview process. Further longitudinal research is needed.

Self-perception of knowledge and confidence in performing basic life support among medical students.

PubMed

Freund, Yonathan; Duchateau, François-Xavier; Baker, Elinor C; Goulet, Hélène; Carreira, Serge; Schmidt, Matthieu; Riou, Bruno; Rouby, Jean-Jacques; Duguet, Alexandre

2013-06-01

Before implementing new workshops and teaching in our faculty for performing basic life support (BLS), we aimed to determine the level of self-confidence of medical students with regard to the management of cardiac arrest (CA). We conducted a preinterventional study. A questionnaire was sent to third-year to sixth-year medical students. We recorded sex, year of training, and personal witnessing of CA. We asked them about their theoretical knowledge on 10 main items of BLS and their self-perception of qualification to conduct a CA situation. We tested the respective influence of sex, year of training, and personal witnessing of CA. In total, 592 (37%) students completed the questionnaire, 42% of them were men. Less than a third of the students (30%) thought of themselves as being sufficiently qualified to conduct BLS. After the third year, the level of study did not influence their theoretical knowledge or their self-perception of qualification. Male sex and the number of CAs witnessed were the only factors positively associated with better self-confidence regarding qualification. Self-perception of qualification in BLS is poor in our faculty. In our study, personal witnessing of CA greatly influenced confidence, whereas level of study did not.

Education level and inequalities in stroke reperfusion therapy: observations in the Swedish stroke register.

PubMed

Stecksén, Anna; Glader, Eva-Lotta; Asplund, Kjell; Norrving, Bo; Eriksson, Marie

2014-09-01

Previous studies have revealed inequalities in stroke treatment based on demographics, hospital type, and region. We used the Swedish Stroke Register (Riksstroke) to test whether patient education level is associated with reperfusion (either or both of thrombolysis and thrombectomy) treatment. We included 85 885 patients with ischemic stroke aged 18 to 80 years registered in Riksstroke between 2003 and 2009. Education level was retrieved from Statistics Sweden, and thrombolysis, thrombectomy, patient, and hospital data were obtained from Riksstroke. We used multivariable logistic regression to analyze the association between reperfusion therapy and patient education. A total of 3649 (4.2%) of the patients received reperfusion therapy. University-educated patients were more likely to be treated (5.5%) than patients with secondary (4.6%) or primary education (3.6%; P<0.001). The inequality associated with education was still present after adjustment for patient characteristics; university education odds ratio, 1.14; 95% confidence interval, 1.03 to 1.26 and secondary education odds ratio, 1.08; 95% confidence interval, 1.00 to 1.17 compared with primary education. Higher hospital specialization level was also associated with higher reperfusion levels (P<0.001). In stratified multivariable analyses by hospital type, significant treatment differences by education level existed only among large nonuniversity hospitals (university education odds ratio, 1.20; 95% confidence interval, 1.04-1.40; secondary education odds ratio, 1.14; 95% confidence interval, 1.01-1.29). We demonstrated a social stratification in reperfusion, partly explained by patient characteristics and the local hospital specialization level. Further studies should address treatment delays, stroke knowledge, and means to improve reperfusion implementation in less specialized hospitals. © 2014 American Heart Association, Inc.

Bootstrap confidence levels for phylogenetic trees.

PubMed

Efron, B; Halloran, E; Holmes, S

1996-07-09

Evolutionary trees are often estimated from DNA or RNA sequence data. How much confidence should we have in the estimated trees? In 1985, Felsenstein [Felsenstein, J. (1985) Evolution 39, 783-791] suggested the use of the bootstrap to answer this question. Felsenstein's method, which in concept is a straightforward application of the bootstrap, is widely used, but has been criticized as biased in the genetics literature. This paper concerns the use of the bootstrap in the tree problem. We show that Felsenstein's method is not biased, but that it can be corrected to better agree with standard ideas of confidence levels and hypothesis testing. These corrections can be made by using the more elaborate bootstrap method presented here, at the expense of considerably more computation.

Assessing pharmacists' readiness to prescribe oral antibiotics for limited infections using a case-vignette technique.

PubMed

Ung, Elizabeth; Czarniak, Petra; Sunderland, Bruce; Parsons, Richard; Hoti, Kreshnik

2017-02-01

Background Pharmacist's skills are underutilized whilst they are directly involved with antibiotic supply to the community. Addressing this issue could lead to better use of antibiotics and hence decreased resistance. Objective Explore how pharmacists can prescribe oral antibiotics to treat a limited range of infections whilst focusing on their confidence and appropriateness of prescribing. Setting Community pharmacies, Western Australia. Method Data were collected using a self-administered questionnaire also containing case vignettes. These were distributed to a random sample of metropolitan and rural community pharmacies in Western Australia. A Generalised Estimating Equation was used to compare respondents' level of confidence in treating various infections and to assess appropriateness of prescribing. Main outcome measure Appropriateness and confidence of antibiotic prescribing. Results A response rate of 34.2% (i.e. 425 responses to case vignettes) was achieved from 240 pharmacies. There were high levels of confidence to treat simple infections such as uncomplicated UTIs (n = 73; 89.0%), impetigo (n = 65; 79.3%), mild bacterial skin infections (n = 62; 75.6%) and moderate acne (n = 61; 72.4%). Over 80% of respondents were confident to prescribe amoxicillin (n = 73; 89%), trimethoprim (n = 72; 87.8%), amoxicillin and clavulanic acid (n = 70; 85.4%), flucloxacillin (n = 70; 85.4%) and cephalexin (n = 68; 82.9%). High levels of appropriate antibiotic prescribing were shown for uncomplicated UTI (97.2%), cellulitis (98.2%) and adolescent acne (100.0%). Conclusion This study identified key limited infections and antibiotics for which pharmacists were supportive and confident to prescribe. This role could lead to better use of antibiotics in the community and minimisation of resistance.

Variations in clinical nurse leaders' confidence with performing the core role functions.

PubMed

Gilmartin, Mattia J

2014-01-01

Clinical nurse leader (CNL) practice, by definition, requires individuals to make career transitions. CNLs must adjust to their new work role and responsibilities and doing so also entails individual adjustment. Prior work has not examined the role of individual-level factors in effective CNL role transition. This study contributes to CNL implementation efforts by developing understanding of personal and contextual factors that explain variation in individuals' levels of self-confidence with performing the key functions of the CNL role. Data were gathered using a cross-sectional survey from a national sample of registered nurses (RNs) certified as CNLs. Respondents' perceptions of their confidence in performing CNL role competencies were measured with the Clinical Nurse Leader Self-Efficacy Scale (CNLSES; Gilmartin MJ, Nokes, K. (in press). The Clinical Nurse Leader Self Efficacy Scale: Results of a pilot study. Nursing Economic$). The CNLSES is a 35-item state-specific self-efficacy scale with established measurement properties that assesses nurses' perceptions of their ability to function effectively as a CNL. Demographic data were also collected. Data were analyzed using a general linear regression model. One hundred forty-seven certified CNLs participated in the survey. Results indicate that respondents vary in their confidence with performing the nine role competencies associated with CNL practice. Results from regression analyses also show that respondents' confidence in their abilities to carry out the core functions associated with the CNL role varied significantly across geographic region, organizational type, and by CNL graduate program model. The results of this study show important differences in CNLs' levels of self-confidence with the core competencies of their role. As a result, it may be important to develop targeted career transition interventions to gain the full benefit of CNL practice. Copyright © 2014 Elsevier Inc. All rights reserved.

Experience and confidence of final year veterinary students in performing desexing surgeries.

PubMed

Gates, M C; Odom, T F; Sawicki, R K

2018-07-01

To describe the level of experience and confidence of veterinary students in performing canine and feline desexing procedures at the end of their final clinical year. A cross-sectional survey was conducted with veterinary students at Massey University in November 2017 after completion of their final clinical year. The questions included career plans after graduation, number of assisted and unassisted desexing procedures performed, approximate time to complete desexing surgeries, level of confidence with different aspects of desexing surgeries, what aspects of their desexing surgery training were most helpful, and what could be done to improve training in desexing surgical skills in veterinary school. The survey was completed by 70/95 (74%) students in their final clinical year. Among respondents, 55/70 (70%) had performed >2 unassisted feline neuters before graduation. However 38/70 (54%) students had never performed an unassisted feline spay, 31/70 (44%) had never performed an unassisted canine neuter, and 44/70 (63%) students had never performed an unassisted canine spay. The median reported times to complete a feline neuter, feline spay, canine neuter, and canine spay were 9, 40, 30 and 60 minutes, respectively. The median level of confidence for these procedures were 9, 6, 7 and 5 (on a scale from 1=least confident to 10=most confident), respectively. The reported time to complete procedures and the confidence in performing procedures did not change markedly with increasing total number of procedures performed. Students were most concerned about their ability to perform the desexing procedures in a reasonable amount of time and to prevent post-operative bleeding from occurring. Students were least concerned with their ability to manage post-operative pain in patients and to select the appropriate suture material. Free-text comments revealed that 62/70 (89%) students wanted more hands-on surgical experience prior to graduation. Many students are currently completing veterinary school with limited experience and low confidence with performing routine canine and feline desexing procedures. Further research is needed to identify the most effective ways for addressing this issue within the constraints of the veterinary curriculum and teaching hospital resources.

Trauma Simulation Training Increases Confidence Levels in Prehospital Personnel Performing Life-Saving Interventions in Trauma Patients

PubMed Central

Patel, Archita D.; Meurer, David A.; Shuster, Jonathan J.

2016-01-01

Introduction. Limited evidence is available on simulation training of prehospital care providers, specifically the use of tourniquets and needle decompression. This study focused on whether the confidence level of prehospital personnel performing these skills improved through simulation training. Methods. Prehospital personnel from Alachua County Fire Rescue were enrolled in the study over a 2- to 3-week period based on their availability. Two scenarios were presented to them: a motorcycle crash resulting in a leg amputation requiring a tourniquet and an intoxicated patient with a stab wound, who experienced tension pneumothorax requiring needle decompression. Crews were asked to rate their confidence levels before and after exposure to the scenarios. Timing of the simulation interventions was compared with actual scene times to determine applicability of simulation in measuring the efficiency of prehospital personnel. Results. Results were collected from 129 participants. Pre- and postexposure scores increased by a mean of 1.15 (SD 1.32; 95% CI, 0.88–1.42; P < 0.001). Comparison of actual scene times with simulated scene times yielded a 1.39-fold difference (95% CI, 1.25–1.55) for Scenario 1 and 1.59 times longer for Scenario 2 (95% CI, 1.43–1.77). Conclusion. Simulation training improved prehospital care providers' confidence level in performing two life-saving procedures. PMID:27563467

Two Color Populations of Kuiper Belt and Centaur Objects

NASA Astrophysics Data System (ADS)

Tegler, Stephen C.; Romanishin, William; Consolmagno, Guy

2016-10-01

We present new optical colors for 64 Kuiper belt objects (KBOs) and Centaur objects measured with the 1.8-meter Vatican Advanced Technology Telescope (VATT) and the 4.3-meter Discovery Channel Telescope (DCT). By combining these new colors with our previously published colors, we increase the sample size of our survey to 154 objects. Our survey is unique in that the uncertainties in our color measurements are less than half the uncertainties in the color measurements reported by other researchers in the literature. Small uncertainties are essential for discerning between a unimodal and a bimodal distribution of colors for these objects as well as detecting correlations between colors and orbital elements. From our survey, it appears red Centaurs have a broader color distribution than grey Centaurs. We find red Centaurs have a smaller orbital inclination angle distribution than grey Centaurs at the 99.3% confidence level. Furthermore, we find that our entire sample of KBOs and Centaurs exhibits bimodal colors at the 99.4% confidence level. KBOs and Centaurs with HV > 7.0 have bimodal colors at the 99.96% confidence level and KBOs with HV < 6.0 have bimodal colors at the 96.3% confidence level.We are grateful to the NASA Solar System Observations Program for support, NAU for joining the Discovery Channel Telescope Partnership, and the Vatican Observatory for the consistent allocation of telescope time over the last 12 years of this project.

[Effects of a workbook program on the perceived stress level, maternal role confidence and breast feeding practice of mothers of premature infants].

PubMed

Jang, Yung-Sook

2005-04-01

The purpose of this study was to identify the effects of a workbook program on percieved stress levels, maternal role confidence and breastfeeding practices of mothers of premature infants. This study employed a quasi-experimental non-equivalent pre-and-post test to compare the two groups. Data was collected from 32 subjects from March 10. to September 5, 2003 at an NICU located in S. city. In the sample, fifteen mothers were in the experimental group and seventeen were in the control group. A workbook program was provided twice during a period from two-three days after the baby's admission to one week after the first intervention. The instruments used were the PSS and self confidence scale. Data was analyzed by means of frequency, SD, chi(2)-test, Fisher's exact test, Mann-Whitney test, and the Wilcoxon signed rank test. There was a significant difference in perceived stress levels between the experimental and control group (U=2.366, p=.018). There was not a significant difference in maternal role confidence between the two groups (U=1.002, p=.316). There was a significant difference in breastfeeding practice between the two groups (chi(2)= 4.910, p=.035). It is concluded that a program using a workbook has a positive effect on decreasing the perceived stress level and increasing breastfeeding practice.

Dietary acid, age, and serum bicarbonate levels among adults in the United States.

PubMed

Amodu, Afolarin; Abramowitz, Matthew K

2013-12-01

Greater dietary acid has been associated with lower serum bicarbonate levels in patients with CKD. Whether this association extends to the general population and if it is modified by age are unknown. This study examined the association of the dietary acid load, estimated by net endogenous acid production, with serum bicarbonate levels in adult participants in the National Health and Nutrition Examination Survey 1999-2004. The mean serum bicarbonate was 24.9 mEq/L (SEM=0.1), and the mean estimated net endogenous acid production was 57.4 mEq/d (SEM=0.4). Serum bicarbonate was linearly associated with age, such that the oldest participants had the highest serum bicarbonate levels. After multivariable adjustment, participants in the highest quartile of net endogenous acid production had 0.40 mEq/L (95% confidence interval, -0.55 to -0.26) lower serum bicarbonate and a 33% (95% confidence interval, 3 to 72) higher likelihood of acidosis compared with those participants in the lowest quartile. There was a significant interaction by age of the association of net endogenous acid production with serum bicarbonate (P=0.005). Among participants 20-39, 40-59, and ≥60 years old, those participants in the highest net endogenous acid production quartile had 0.26 (95% confidence interval, -0.49 to -0.03), 0.60 (95% confidence interval, -0.92 to -0.29), and 0.49 (95% confidence interval, -0.84 to -0.14) mEq/L lower serum bicarbonate, respectively, compared with participants in the lowest quartile. Greater dietary acid is associated with lower serum bicarbonate in the general US population, and the magnitude of this association is greater among middle-aged and elderly persons than younger adults.

Social acceptance and population confidence in telehealth in Quebec.

PubMed

Poder, Thomas G; Bellemare, Christian A; Bédard, Suzanne K; Lemieux, Renald

2015-02-21

Access to healthcare in remote areas is difficult and telehealth could be a promising avenue if accepted by the population. The aim of this study is to assess social acceptance and population confidence in telehealth in the Province of Quebec. We conducted a survey using a questionnaire assessing the social acceptance of and confidence level in telehealth. Two strategies were used: 1) paper questionnaires were sent to two hospitals in Quebec; and 2) online questionnaires were randomly sent by a firm specialized in online survey to a representative sample of the population of the Province of Quebec. Respondents were all residents of the Province of Quebec and 18 years and older. Questions were scored with a four-level Likert scale. A total of 1816 questionnaires were analyzed (229 written and 1,587 online questionnaires). The socio-demographic variables in our samples, especially the online questionnaires, were fairly representative of Quebec's population. Overall, social acceptance scored at 77.71% and confidence level at 65.76%. Both scores were higher in the case of treatment (3 scenarios were proposed) vs. diagnosis (p < 0.05). No difference was found when respondents were asked to respond for themselves and for a member of their family, which demonstrates a true interest in telehealth in Quebec. In addition, we found a significant difference (p < 0.05) between written and online questionnaires regarding social acceptance (80.75% vs. 77.33%) and confidence level (74.84% vs. 64.55%). These differences may be due to social desirability or avidity bias in the written questionnaires. Our results suggest that the population in Quebec encourages the development of telehealth for real time diagnosis and long distance treatment for regions deprived of healthcare professionals.

Preoperative surgical rehearsal using cadaveric fresh tissue surgical simulation increases resident operative confidence.

PubMed

Weber, Erin L; Leland, Hyuma A; Azadgoli, Beina; Minneti, Michael; Carey, Joseph N

2017-08-01

Rehearsal is an essential part of mastering any technical skill. The efficacy of surgical rehearsal is currently limited by low fidelity simulation models. Fresh cadaver models, however, offer maximal surgical simulation. We hypothesize that preoperative surgical rehearsal using fresh tissue surgical simulation will improve resident confidence and serve as an important adjunct to current training methods. Preoperative rehearsal of surgical procedures was performed by plastic surgery residents using fresh cadavers in a simulated operative environment. Rehearsal was designed to mimic the clinical operation, complete with a surgical technician to assist. A retrospective, web-based survey was used to assess resident perception of pre- and post-procedure confidence, preparation, technique, speed, safety, and anatomical knowledge on a 5-point scale (1= not confident, 5= very confident). Twenty-six rehearsals were performed by 9 residents (PGY 1-7) an average of 4.7±2.1 days prior to performance of the scheduled operation. Surveys demonstrated a median pre-simulation confidence score of 2 and a post-rehearsal score of 4 (P<0.01). The perceived improvement in confidence and performance was greatest when simulation was performed within 3 days of the scheduled case. All residents felt that cadaveric simulation was better than standard preparation methods of self-directed reading or discussion with other surgeons. All residents believed that their technique, speed, safety, and anatomical knowledge improved as a result of simulation. Fresh tissue-based preoperative surgical rehearsal was effectively implemented in the residency program. Resident confidence and perception of technique improved. Survey results suggest that cadaveric simulation is beneficial for all levels of residents. We believe that implementation of preoperative surgical rehearsal is an effective adjunct to surgical training at all skill levels in the current environment of decreased work hours.

Impact of Balance Confidence on Daily Living Activities of Older People with Knee Osteoarthritis with Regard to Balance, Physical Function, Pain, and Quality of Life - A Preliminary Report.

PubMed

Bobić Lucić, Lana; Grazio, Simeon

2018-01-01

The objective of this study was to explore the impact of balance confidence on different activities of daily living (ADL) in older people with knee osteoarthritis (OA). Forty-seven consecutive participants with knee OA were included in this cross-sectional study. They were divided according to the results of the Activities-specific Balance Confidence (ABC) Scale into a group with a low level of confidence in physical functioning (ABC < 50, n = 22) and a group with moderate and high levels of confidence (ABC ≥ 50, n = 25). In the ABC < 50 group, the effect of pain on ADL, the physician's global assessment of the disease, and the Western Ontario and McMaster Universities Osteoarthritis Index scores were significantly higher, while quality of life (Short form-36) was lower compared to the ABC ≥ 50 group. No significant difference was found between the two groups regarding the static and dynamic balance measurements. Older people with knee OA who were less confident in their daily physical activities had more physical difficulties and a greater effect of pain on ADL, lower quality of life, and a higher physician's global assessment, but no differences were obtained in balance tests. In people with knee OA, decreased balance confidence is associated with more physical difficulties, an increased effect of pain on ADL, and lower quality of life. An improved awareness of decreased balance confidence may lead to more effective management of older people with knee OA by improving their mobility and QOL through rehabilitation. Furthermore, future research in that direction is warranted.

Innovation in internship preparation: an operative anatomy course increases senior medical students' knowledge and confidence.

PubMed

Tocco, Nikki; Brunsvold, Melissa; Kabbani, Loay; Lin, Jules; Stansfield, Brent; Mueller, Dean; Minter, Rebecca M

2013-08-01

An operative anatomy course was developed within the construct of a surgical internship preparatory curriculum. This course provided fourth-year medical students matching into a surgical residency the opportunity to perform intern-level procedures on cadavers under the guidance of surgical faculty members. Senior medical students performed intern-level procedures on cadavers with the assistance of faculty surgeons. Students' confidence, anxiety, and procedural knowledge were evaluated both preoperatively and postoperatively. Preoperative and postoperative data were compared both collectively and based on individual procedures. Student confidence and procedural knowledge significantly increased and anxiety significantly decreased when preoperative and postoperative data were compared (P < .05). Students reported moderate to significant improvement in their ability to perform a variety of surgical tasks. The consistent improvement in confidence, knowledge, and anxiety justifies further development of an operative anatomy course, with future assessment of the impact on performance in surgical residency. Copyright © 2013 Elsevier Inc. All rights reserved.

Evaluation of virtual simulation in a master's-level nurse education certificate program.

PubMed

Foronda, Cynthia; Lippincott, Christine; Gattamorta, Karina

2014-11-01

Master's-level, nurse education certificate students performed virtual clinical simulations as a portion of their clinical practicum. Virtual clinical simulation is an innovative pedagogy using avatars in Web-based platforms to provide simulated clinical experiences. The purpose of this mixed-methods study was to evaluate nurse educator students' experience with virtual simulation and the effect of virtual simulation on confidence in teaching ability. Aggregated quantitative results yielded no significant change in confidence in teaching ability. Individually, some students indicated change of either increased or decreased confidence, whereas others exhibited no change in confidence after engaging in virtual simulation. Qualitative findings revealed a process of precursors of anxiety and frustration with technical difficulties followed by outcomes of appreciation and learning. Instructor support was a mediating factor to decrease anxiety and technical difficulties. This study served as a starting point regarding the application of a virtual world to teach the art of instruction. As the movement toward online education continues, educators should further explore use of virtual simulation to prepare nurse educators.

Sex hormones and the risk of type 2 diabetes mellitus: A 9-year follow up among elderly men in Finland.

PubMed

Salminen, Marika; Vahlberg, Tero; Räihä, Ismo; Niskanen, Leo; Kivelä, Sirkka-Liisa; Irjala, Kerttu

2015-05-01

To analyze whether sex hormone levels predict the incidence of type2 diabetes among elderly Finnish men. This was a prospective population-based study, with a 9-year follow up period. The study population in the municipality of Lieto, Finland, consisted of elderly (age ≥64 years) men free of type 2 diabetes at baseline in 1998-1999 (n = 430). Body mass index and cardiovascular disease-adjusted hazard ratios and their 95% confidence intervals for type 2 diabetes predicted by testosterone, free testosterone, sex hormone-binding globulin, luteinizing hormone, and testosterone/luteinizing hormone were estimated. A total of 30 new cases of type 2 diabetes developed during the follow-up period. After adjustment, only higher levels of testosterone (hazard ratio for one-unit increase 0.93, 95% confidence interval 0.87-0.99, P = 0.020) and free testosterone (hazard ratio for 10-unit increase 0.96, 95% confidence interval 0.91-1.00, P = 0.044) were associated with a lower risk of incident type 2 diabetes during the follow up. These associations (0.94, 95% confidence interval 0.87-1.00, P = 0.050 and 0.95, 95% confidence interval 0.90-1.00, P = 0.035, respectively) persisted even after additional adjustment of sex hormone-binding globulin. Higher levels of testosterone and free testosterone independently predicted a reduced risk of type 2 diabetes in the elderly men. © 2014 Japan Geriatrics Society.

Perceived preparedness for physiatric specialization and future career goals of graduating postgraduate year IV residents during the 2004-2005 academic year.

PubMed

Raj, Vishwa S; Rintala, Diana H

2007-12-01

The purpose of this study was to evaluate trends among postgraduate year (PGY) IV physiatry residents, at the time of graduation from residency, in terms of their perceived experiences in the core clinical areas, confidence with procedural subspecialization, choice in career specialization, and desire to pursue clinical fellowship. Surveys were distributed to 386 PGY IV residents in physiatry at the end of the 2004-2005 academic year. Ninety-three residents (24%) completed responses in a confidential manner. Residents who were generally more confident in core clinical areas, as defined by the Self-Assessment Examination, and specialty prescription writing also believed themselves to be more prepared to practice these topics in their careers. Overall levels of confidence and perceived preparedness correlated positively with months of training and negatively with the belief in the need for postresidency fellowship training to incorporate these areas into clinical practice. Positive correlations also existed among perceived levels of preparedness in performing various physiatric procedures. Statistically significant differences in levels of confidence and preparedness existed among geographic regions when evaluating core physiatric subject matter. Fifty-six percent of residents who responded planned to pursue fellowship training, and a majority of residents intended to perform interventional procedures and musculoskeletal medicine in their practices. These results provide insight into how trainees perceive their current clinical education. With validation of measures for confidence and preparedness, this survey may be useful as an adjunct resource for residency programs to evaluate their trainees.

Teaching Veterinary Anesthesia: A Survey-Based Evaluation of Two High-Fidelity Models and Live-Animal Experience for Undergraduate Veterinary Students.

PubMed

Musk, Gabrielle C; Collins, Teresa; Hosgood, Giselle

In veterinary medical education, reduction, replacement, and refinement (the three Rs) must be considered. Three clinical skills in anesthesia were identified as challenging to students: endotracheal intubation, intravenous catheterization, and drug dose calculations. The aims of this project were to evaluate students' perception of their level of confidence in performing these three clinical skills in veterinary anesthesia, to document the extent of students' previous experience in performing these three tasks, and to describe students' emotional states during this training. Veterinary students completed a series of four surveys over the period of their pre-clinical training to evaluate the usefulness of high-fidelity models for skill acquisition in endotracheal intubation and intravenous catheterization. In addition, practice and ongoing assessment in drug dose calculations were performed. The curriculum during this period of training progressed from lectures and non-animal training, to anesthesia of pigs undergoing surgery from which they did not recover, and finally to anesthesia of dogs and cats in a neutering clinic. The level of confidence for each of the three clinical skills increased over the study period. For each skill, the number of students with no confidence decreased to zero and the proportion of students with higher levels of confidence increased. The high-fidelity models for endotracheal intubation and intravenous catheterization used to complement the live-animal teaching were considered a useful adjunct to the teaching of clinical skills in veterinary anesthesia. With practice, students became more confident performing drug dose calculations.

Availability, usage, and factors affecting usage of electrophysical agents by physical therapists: a regional cross-sectional survey

PubMed Central

Abe, Yuichi; Goh, Ah-Cheng; Miyoshi, Kei

2016-01-01

[Purpose] The aim of this study was to investigate the availability, usage, and factors affecting usage of electrophysical agents by physical therapists in Nagano Prefecture, Japan. [Subjects and Methods] Questionnaires were sent to all 1,571 physical therapists working in 245 institutions within Nagano Prefecture. A total of 1,110 questionnaires were returned, out of which 1,099 (70%) questionnaires containing valid responses were analyzed. Frequencies and percentages were calculated for 22 modalities with regards to availability, usage, rate of usage, and confidence level in usage. Factors affecting usage and the relationship between rate of usage and confidence level (Spearman’s rho) were also determined. [Results] The top three responses for the various outcome measures were as follows: (1) hot packs (88%), low frequency stimulators (76%), and ultrasound (68%) for availability; (2) hot packs (72%), ultrasound (61%), and cold packs (59%) for usage; (3) hot packs (75%), cold spray (49%), and ultrasound (44%) for confidence in usage; and (4) equipment availability (80%), past experience (79%), and research evidence (78%) for factors affecting usage. There was a significant positive relationship between confidence and usage for all modalities, except for ultraviolet radiation, iontophoresis, and magnetic field. [Conclusion] Usage was strongly correlated with confidence, with the top three used modalities also being the ones with the highest confidence in usage. PMID:27942126

The role of unconscious memory errors in judgments of confidence for sentence recognition.

PubMed

Sampaio, Cristina; Brewer, William F

2009-03-01

The present experiment tested the hypothesis that unconscious reconstructive memory processing can lead to the breakdown of the relationship between memory confidence and memory accuracy. Participants heard deceptive schema-inference sentences and nondeceptive sentences and were tested with either simple or forced-choice recognition. The nondeceptive items showed a positive relation between confidence and accuracy in both simple and forced-choice recognition. However, the deceptive items showed a strong negative confidence/accuracy relationship in simple recognition and a low positive relationship in forced choice. The mean levels of confidence for erroneous responses for deceptive items were inappropriately high in simple recognition but lower in forced choice. These results suggest that unconscious reconstructive memory processes involved in memory for the deceptive schema-inference items led to inaccurate confidence judgments and that, when participants were made aware of the deceptive nature of the schema-inference items through the use of a forced-choice procedure, they adjusted their confidence accordingly.

Tubular electric heater with a thermocouple assembly

DOEpatents

House, R.K.; Williams, D.E.

1975-08-01

This patent relates to a thermocouple or other instrumentation which is installed within the walls of a tubular sheath surrounding a process device such as an electric heater. The sheath comprises two concentric tubes, one or both of which have a longitudinal, concave crease facing the other tube. The thermocouple is fixedly positioned within the crease and the outer tube is mechanically reduced to form an interference fit onto the inner tube. (auth)

Investigation of gamma-ray induced polymer formation of the carboranes. Annual progress report, November 1, 1972--September 30, 1973

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

Klingen, T.J.

1973-10-01

Research is reported on the radiation chemistry of o-carborane STA 1, 2- dicarba-closo-dodecaborane (11)! and its l-alkyl and 1-alkenyl derivatives. The principal purpose of the research is to establish optirmum conditions for radiation-induced polymerization of such compounds. Properties and structures of polymeric products, identities and yields of minor products, and reaction mechanisms are being determined. (auth)

HTGR fuels and core development program. Quarterly progress report for the period ending August 31, 1975

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

None

1975-09-30

Studies of reactions between core materials and coolant impurities, basic fission product transport mechanisms, core graphite development and testing, the development and testing of recyclable fuel systems, and physics and fuel management studies are described. Materials studies include irradiation capsule tests of both fuel and graphite. Experimental procedures and results are discussed and, where appropriate, the data are presented in tables, graphs, and photographs. (auth)

RECORDING DEVICE FOR 128 CHANNEL IONIZATION CHAMBERS (in Russian)

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

Goryunov, N.N.

1959-05-01

Descriptions are given of a 128-channel amplitude recording device desiged for operation with ionization chambers. Each channl has a large puse recording dynamic amplitude range (amplitudes can vary from each other up to 8000 fold). The recording of amplitudes is accomplished by photographing pulses on a cathode ray tube. With the aid of a commutation device it is possible to record 64 pulses simultaneously on one tube screen. (tr-auth)

Schottky barrier betavoltaic battery

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

Manasse, F.K.; Pinajian, J.J.; Tse, A.N.

1976-02-01

A new nuclear betavoltaic battery is described. It uses a Schottky barrier in place of the more standard p-n junction diode, along with $sup 147$Pm metal film rather than Pm$sub 2$O$sub 3$ oxide as in the commercially available Betacel. Design details of the battery including measurement of absorption, conversion efficiency, thickness etc. as functions of resistivity and other cell parameters are described. A prototype design is discussed and its performance assessed. (auth)

THE RESISTANCE TO $gamma$ RADIATION OF THE WORKER BEE (in French)

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

Courtois, G.; Lecomte, J.

The worker bee which has been subjected to gamma radiation from a Co/ sup 60/ source can withstand without apparent physical damage a dose of 18,000 r. At 90,000 r there is, however, appreciable damage. At a dose of 200,000 r, death is immediate in 100% of the cases. The physiological state of the bee plays an important role in determining its resistance to gamma radiation. (auth)

CERTAIN PHYSICO-CHEMICAL AND CHEMICAL INDICES OF THE BLOOD IN CHRONIC ACTION OF LOW DOSES OF IONIZING RADIATION (in Russian)

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

Gorn, L.E.

1960-06-01

Results are reported from a study on 45 persons subjected during work to the protracted action of rontgen and gamma rays in doses exceeding the maximal permissible ones. It was found that the creatine, aromatic amino acids, and non- hemoglobin iron, as well as the redox potential of the serum, do not differ from the respective values in healthy subjects. (auth)

SOME DATA ON THE ROTATIONAL MAGNETO-MECHANIC EFFECT IN A LOW-PRESSURE PLASMA (in Russian)

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

Urazakov, E.I.

1963-01-01

The rotational magneto-mechanic effect in a low pressure plasma previously discovered is studied quantitatively. The dependence of the angular momentum in the plasma on the magnetic field strength, pressure and nature of gas and magnitude of current flowing through the plasma are determined. The rotational magneto-mechanical effect has also been detected in the plasma of inert gas produced by a high frequency field. (auth)

AUTOMATIC RECORDING OF THE RADIOACTIVITY OF ZONES ELUTED FROM THE GAS- LIQUID CHROMATOGRAM

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

James, A.T.; Piper, E.A.

1961-03-01

A simple proportional flow counter for use with the gas chromatogram is described. which is operated at room temperature by burning all eluted material to CO/sub 2/ over heated copper oxide. The gas stream is dried. 5% CO/sub 2/ is injected and the mixture passed into the counter. Details are given of the necessary circuitry. Examples are provided of its use with long chain fatty acids. (auth)

Residual disabilities in children treated for intracranial space-occupying lesions

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

Bamford, F.N.; Jones, P.M.; Pearson, D.

1976-02-01

A retrospective study of 30 long-term survivors of cranial or craniospinal irradiation for intracranial space-occupying lesions has demonstrated physical and mental handicaps in the majority. This is most severe in those cases treated before the age of 11 years, and is not confined to those children having craniospinal or whole-brain irradiation. The mental handicap also appears to be progressive, but cannot be easily examined in this retrospective study. (auth)

Hybrid Optical Processor

DTIC Science & Technology

1990-08-01

LCTVs) ..................... 17 2.14 JOINT FOURIER TRANSFORM PROCESSOR .................. 18 2.15 HOLOGRAPHIC ASSOCIATIVE MEMORY USING A MICRO ...RADC-TR-90-256 Final Technical Report August1990 AD-A227 163 HYBRID OPTICAL PROCESSOR Dove Electronics, Inc. J.F. Dove, F.T .S. Yu, C. Eldering...ANM SUSUE & FUNDING NUMBERS C - F19628-87-C-0086 HYBRID OPTICAL PROCESSOR PE - 61102F PR - 2305 &AUThNOA TA - J7 J.F. Dove, F.T.S. Yu, C. Eldering WU

THE VALUE OF OVARIAN IRRADIATION IN THE MANAGEMENT OF BREAST CANCER

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

Cole, M.P.

1962-01-01

A report is given of a clinical trial to assess the value of ovarian radiation (x-ray artificial menopause) for breast cancer. There appeared to be a definite advantage to cases having ovarian irradiation prophylactically as judged on crude survival rate. This improvement was more apparent in the earlier case than the late, with a definite decrease in the incidence of metastases in the treated group at 5 years. (auth)