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Kinds of Correct Terms modified by Correct Selected AbstractsLandy Is Correct: Stereotyping Can Be Moderated by Individuating the Out-Group and by Being AccountableINDUSTRIAL AND ORGANIZATIONAL PSYCHOLOGY, Issue 4 2008ANTHONY G. GREENWALD [source] Old Habits Die Hard: The Quest for Correct(ed) QT Interval MeasurementsJOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY, Issue 8 2010DANIELA HUSSER M.D. No abstract is available for this article. [source] Knowledge and Behavior of Tourists to Manu National Park, Peru, in Relation to LeishmaniasisJOURNAL OF TRAVEL MEDICINE, Issue 4 2002Irmgard L. Bauer Background: Tourists have been infected with Leishmania braziliensis and the lack of appropriate travel information on the disease has been documented. The aim of this study was to describe the knowledge and behavior of tourists booked on a trip to Manu National Park in Peru in relation to leishmaniasis and its prevention. Methods: The clients of two tour operators in Cusco, Peru, represented the experimental and control group. The experimental group completed a questionnaire after the tour briefing the night before the trip and received the information leaflet. A second questionnaire was completed just before returning from the park. The clients in the control group did not receive the leaflet. Results: Three hundred and seventy-three questionnaire pairs were collected (173 experimental, 200 control). Only 24 (6%) of all participants claimed to have heard of leishmaniasis. Of the 92.5% of tourists who read the leaflet, 156 (97.5%) found it informative, although 50 (32.5%) wanted more information. It was suggested that the leaflet should be distributed by tour operators (56.9%), general practitioners/family doctors (49%), and travel agents (47.1%). There was no significant difference in the use of preventive measures between the groups. One-third of the experimental group claimed to have paid more attention to protection due to the information given in the leaflet. Conclusions: There is generally a lack of knowledge on leishmaniasis with a great feeling of need for more and detailed information. Correct and complete information on leishmaniasis should be included in the health advice for travelers to endemic areas. [source] Tolerogenic Dendritic Cells: All Present and Correct?AMERICAN JOURNAL OF TRANSPLANTATION, Issue 2 2010A. W. Thomson Although well-recognized for their sentinel role and, when activated, their immunostimulatory function, bone marrow-derived dendritic cells (DC) possess inherent tolerogenic (tol) ability. Under quiescent conditions, these cells maintain central and peripheral self tolerance. When appropriately conditioned, in vitro or in vivo, they inhibit innate and adaptive immunity to foreign antigens, including memory T-cell responses. This suppressive function is mediated by various mechanisms, including the expansion and induction of antigen-specific regulatory T cells. Extensive experience in rodent models and recent work in nonhuman primates, indicate the potential of pharmacologically-modified, tol DC (tolDC) to regulate alloimmunity in vivo and to promote lasting, alloantigen-specific T-cell unresponsiveness and transplant survival. While there are many questions yet to be addressed concerning the functional biology of tolDC in humans, these cells offer considerable potential as natural, safe and antigen-specific regulators for long-term control of the outcome of organ and hematopoietic cell transplantation. This minireview surveys recent findings that enhance understanding of the functional biology and therapeutic application of tolDC, with special reference to transplantation. [source] Characterizing visual behaviour in a lineup task,APPLIED COGNITIVE PSYCHOLOGY, Issue 7 2009Jamal K. Mansour Eye tracking was used to monitor participants' visual behaviour while viewing lineups in order to determine whether gaze behaviour predicted decision accuracy. Participants viewed taped crimes followed by simultaneous lineups. Participants (N,=,34) viewed 4 target-present and 4 target-absent lineups. Decision time, number of fixations and duration of fixations differed for selections vs. non-selections. Correct and incorrect selections differed only in terms of comparison-type behaviour involving the selected face. Correct and incorrect non-selections could be distinguished by decision time, number of fixations and duration of fixations on the target or most-attended face and comparisons. Implications of visual behaviour for judgment strategy (relative vs. absolute) are discussed. Copyright © 2009 John Wiley & Sons, Ltd. [source] The effects of protective helmet use on physiology and cognition in young cricketersAPPLIED COGNITIVE PSYCHOLOGY, Issue 9 2004Nick Neave Many studies have reported physiological and cognitive decrements following heat stress. Of particular concern in cricket are the possible negative effects of sustained protective helmet use, as this leads to an increase in heat-related stress. Correct and rapid decision making, and focused attention are essential for efficient performance whilst batting, and it is possible that helmet usage could impair such processes. In a repeated-measures, randomized crossover study, physiological, self-report, and cognitive measures were taken from 16 teenage cricketers before and after moderately intense (batting) exercise. Participants underwent the assessments twice, once while wearing a standard protective helmet, and again, when not wearing a helmet (counterbalanced). While helmet use did not lead to significant physiological changes, wearing a helmet led to some cognitive impairments in attention, vigilance and reaction times. These preliminary findings could have significance for cognitively demanding sports (and perhaps military and industrial settings) in which participants perform cognitively demanding operations under conditions of physical exercise whilst wearing protective helmets. Additional factors of hydration, exercise duration, and helmet design are discussed. Copyright © 2004 John Wiley & Sons, Ltd. [source] Profiles in Patient Safety: A "Perfect Storm" in the Emergency DepartmentACADEMIC EMERGENCY MEDICINE, Issue 8 2007CCFP(EM), Samuel G. Campbell MB Correct and rapid diagnosis is pivotal to the practice of emergency medicine, yet the chaotic and ill-structured emergency department environment is fertile ground for the commission of diagnostic error. Errors may result from specific error-producing conditions (EPCs) or, more frequently, from an interaction between such conditions. These EPCs are often expedient and serve to shorten the decision making process in a high-pressure environment. Recognizing that they will inevitably exist, it is important for clinicians to understand and manage their dangers. The authors present a case of delayed diagnosis resulting from the interaction of a number of EPCs that produced a "perfect" situation to produce a missed or delayed diagnosis. They offer practical suggestions whereby clinicians may decrease their chances of becoming victims of these influences. [source] The origins and present status of the radio wave controversy in NMRCONCEPTS IN MAGNETIC RESONANCE, Issue 4 2009D.I. Hoult Abstract The origins, history, and present status of the controversy surrounding a quantum description of the NMR signal as being due to radio waves are traced. With the Principle of Relativity and Coulomb's Law as formal starting points and the minimum of mathematics needed for understanding, the derivation of a classical electromagnetic theory of signal reception is first given. The agreement between that classical theory and a recent NMR experiment is then presented, leading to proof that, except for the highest field imaging experiments, there is no significant contribution of radio waves to the signal. Attention is drawn to the very different properties of the near and far energy, momenta, and fields inherent in the derivation. The role of the Correspondence Principle in formulating a quantum description is then emphasized and it is shown that the standard NMR interpretation of Dicke's theory of coherent spontaneous emission,that the latter is responsible for the NMR signal,cannot be correct. Finally, the author speculates on some of the intriguing relationships found in the classical electrodynamics of NMR signal reception and attempts to relate them to a common quantum electrodynamic precept of near field interaction: that the free induction decay voltage present at the terminals of an open-circuit receiving coil is based on an exchange of virtual photons between the nuclei in a sample and the free electrons in a receiving coil. © 2009 Crown in the right of Canada. Concepts Magn Reson Part A 34A: 193,216, 2009. [source] Validity of a Discharge Diagnosis of Heart Failure: Implications of MisdiagnosingCONGESTIVE HEART FAILURE, Issue 4 2008Cândida Fonseca MD Heart failure (HF) costs are largely due to hospitalization. The validity of a death/discharge diagnosis of HF (DDHF) is largely unknown. The authors assessed the validity of DDHF and the impact of misdiagnosing. The case notes of patients consecutively admitted to a medical department between January and June 2001 were reviewed. Cases with DDHF or cardiovascular diseases, potential precursors of HF (PPHF), were included. The diagnosis of HF (European Society of Cardiology guidelines) was classified as definite, possible, or miscoded. Of the 1038 patients admitted, 234 were enrolled: 157 with DDHF and 77 with PPHF. One hundred eighty patients had a definite diagnosis of HF. Of the 157 diagnoses coded as definite HF, 130 were correct, 21 had possible HF, and 6 were miscoded. Of the 77 patients classified as having PPHF, 38 had definite HF. The accuracy of the DDHF diagnosis was 72.2%: 21.1% were underdiagnosed and 8.3% overdiagnosed. DDHF failed to capture many HF admissions and therefore alone underestimates the prevalence, burden, and costs of the syndrome. [source] TAX REVISIONS OF 2004 AND PRO SPORTS TEAM OWNERSHIPCONTEMPORARY ECONOMIC POLICY, Issue 4 2010N. EDWARD COULSON Tax law revisions of 2004 altered the "roster depreciation allowance" enjoyed by pro sports team owners. Supporters claimed this would practically eliminate costly legal oversight by the IRS and, ultimately, increase owner tax bills. Government officials and leagues remained silent on team value impacts but outside analysts argued they would rise by 5%. We model this policy change and investigate it empirically. Supporters in Congress were absolutely correct that owner tax payments should increase but outside analysts underestimated team value increases by half. No wonder Major League Baseball and the National Football League favored the revision. (JEL D21, G38, H25, L83) [source] How correct is the EOS of weakly nonideal hydrogen plasmas?CONTRIBUTIONS TO PLASMA PHYSICS, Issue 5-6 2003A.N. Starostin Abstract Helioseismology opens new possibility to check EOS of weakly nonideal hydrogen plasmas with high precision, using reconstructed local sound velocities within 10-4 accuracy. A comparison of different theoretical models with experiment permits to verify the existing methods of calculation bound states and continuum contribution to the second virial coefficient within the framework of physical nature. The regular way of the deduction expression for EOS is presented and generalization of the EOS for broad atomic states and two temperature non-equilibrium case is proposed. (© 2003 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) [source] SIZE OF HOUSEHOLD FIREARM COLLECTIONS: IMPLICATIONS FOR SUBCULTURES AND GENDER,CRIMINOLOGY, Issue 3 2007BRIAN R. WYANT Recent work (Cook and Ludwig, 2003) has linked local firearm density to increased burglary victimization risk. The current work investigates within-household gun density or household firearm collection size. Previous work has suggested two subcultures of gun owners: protection-minded and sport- or hunting-minded. It also has identified gender gaps in reporting any household guns and in the number reported. None of the earlier work, however, has controlled for selection into gun-owning household status. This limitation raises potential questions about earlier findings. The current research controls for selection. If the two subcultures thesis is correct, protection-minded owners should report smaller household firearm collections. The expected impact is observed in one national survey and is partially replicated in a second. Gender gaps seemed more independent than previously suggested. This study is the first to provide evidence of two partially overlapping subcultures of gun owners even after controlling for selection into gun-owning household status. Practical implications for burglary risk may exist. [source] An Alternate Multiple-Choice Scoring Procedure in a Macroeconomics CourseDECISION SCIENCES JOURNAL OF INNOVATIVE EDUCATION, Issue 1 2004David A. Bradbard ABSTRACT In the standard scoring procedure for multiple-choice exams, students must choose exactly one response as correct. Often students may be unable to identify the correct response, but can determine that some of the options are incorrect. This partial knowledge is not captured in the standard scoring format. The Coombs elimination procedure is an alternate scoring procedure designed to capture partial knowledge. This paper presents the results of a semester-long experiment where both scoring procedures were compared on four exams in an undergraduate macroeconomics course. Statistical analysis suggests that the Coombs procedure is a viable alternative to the standard scoring procedure. Implications for classroom instruction and future research are also presented. [source] Efficacy of laser Doppler flowmetry for the diagnosis of revascularization of reimplanted immature dog teethDENTAL TRAUMATOLOGY, Issue 2 2001Kallaya Yanpiset Abstract , This study was performed to assess if laser Doppler flowmetry (LDF) is an improved method for the detection of revascularization of replanted teeth. Teeth were extracted and reimplanted under different experimental conditions. LDF readings were taken before extraction and weekly for 3 months. In control teeth, LDF baseline readings were taken and then repeated after the apical blood vessels were cut surgically. At the end of 3 months it was determined radiographically and histologically whether revascularization had occurred, i.e. vitality had returned. Results: LDF readings correctly predicted the pulp status (vital vs. non-vital) in 83.7% of the readings. 73.9% (17 of 23) were correct for the vital teeth and 95% (19 of 20) were correct for the non-vital teeth. Fisher's exact test (2-tail) indicated that there was no significant association between the efficacy of LDF and tooth type (P=0.166), although P2 was the least accurate tooth tested. Wilcoxon's matched-pair signed rank test demonstrated that in the revascularized (vital) teeth, the flux value between the baseline and week 2 dropped significantly (P=0.0001), increased significantly from week 2 to week 4 (P=0.0001) and then decreased steadily until week 12. However, at week 12 the flux was still significantly higher than at week 2 (P=0.010). In the teeth that failed to revascularize, the flux value dropped significantly by weeks 1 and 2 (P=0.004 and P=0.0001, respectively). Flux values did not increase from week 2. A Fast Fourier Transform (FFT) analysis confirmed a pulse of dominant frequency of 2 Hz in the teeth that returned to vitality and the lack thereof in those that stayed non-vital. One tooth in which the flux value evaluation indicated a non-vital tooth but the radiographic/histologic findings showed vital (false negative) possessed a pulse of dominant frequency and proved by this method to have successfully revascularized. [source] Good Enough Governance RevisitedDEVELOPMENT POLICY REVIEW, Issue 5 2007Merilee S. Grindle The concept of good enough governance provides a platform for questioning the long menu of institutional changes and capacity-building initiatives currently deemed important (or essential) for development. Nevertheless, it falls short of being a tool to explore what, specifically, needs to be done in any real world context. Thus, as argued by the author in 2004, given the limited resources of money, time, knowledge, and human and organisational capacities, practitioners are correct in searching for the best ways to move towards better governance in a particular country context. This article suggests that the feasibility of particular interventions can be assessed by analysing the context for change and the implications of the content of the intervention being considered. [source] Neural correlates of successful and partial inhibitions in children: An ERP studyDEVELOPMENTAL PSYCHOBIOLOGY, Issue 7 2009Lucy Cragg Abstract This experiment used event-related potentials (ERPs) to investigate the neural processes underlying the development of response inhibition in a modified version of the go/no-go paradigm [Cragg and Nation [2008] Developmental Science 11(6): 819,827]. N2 and P3 ERP components on correct go trials and partial and successful inhibitions were compared in 7- and 9-year-old children. A larger N2 effect on successful inhibitions was found in 9-year-olds compared to 7-year-olds at fronto-central electrodes. N2 amplitude was positively related to behavioral performance in the 7-year-olds suggesting it may reflect inhibitory processes; however, this relationship was not present in the 9-year-olds. Age differences were also apparent in the go P3, perhaps indicating differences in stimulus processing. The no-go P3 component was larger on successful than partial inhibitions. In contrast, there was no difference in N2 amplitude between partial and successful inhibitions. A significant difference was found in N2 latency however. This suggests that inhibitory processes are similar in both cases but initiated earlier on successful inhibitions. N2 latency was also shorter in 9-year-olds than 7-year-olds supporting an increase in the efficiency of response inhibition with age. © 2009 Wiley Periodicals, Inc. Dev Psychobiol 51: 533,543, 2009. [source] Differentiation and integration: guiding principles for analyzing cognitive changeDEVELOPMENTAL SCIENCE, Issue 4 2008Robert S. Siegler Differentiation and integration played large roles within classic developmental theories but have been relegated to obscurity within contemporary theories. However, they may have a useful role to play in modern theories as well, if conceptualized as guiding principles for analyzing change rather than as real-time mechanisms. In the present study, we used this perspective to examine which rules children use, the order in which the rules emerge, and the effectiveness of instruction on water displacement problems. We found that children used systematic rules to solve such problems, and that the rules progress from undifferentiated to differentiated forms and toward increasingly accurate integration of the differentiated variables. Asking children to explain both why correct answers were correct and why incorrect answers were incorrect proved more effective than only requesting explanations of correct answers, which was more effective than just receiving feedback on the correctness of answers. Requests for explanations appeared to operate through helping children notice potential explanatory variables, formulate more advanced rules, and generalize the rules to novel problems. [source] Maturation of action monitoring from adolescence to adulthood: an ERP studyDEVELOPMENTAL SCIENCE, Issue 6 2005Alexandra M. Hogan This study investigated the development of the frontal lobe action-monitoring system from late childhood and adolescence to early adulthood using ERP markers of error processing. Error negativity (ERN) and correct response negativity (CRN) potentials were recorded while adolescents and adults (aged 12,22 years, n = 23) performed two forced-choice visual reaction time tasks of differing complexity. Significant age differences were seen for behavioural and ERP responses to complex (infrequent, incompatible) trials: adolescents elicited an error negativity of reduced magnitude compared with adults. Furthermore, in contrast to adults, adolescents showed a non-significant differentiation between response-locked ERP components elicited by correct (CRN) and error responses (ERN). Behaviourally, adolescents corrected fewer errors in incompatible trials, and with increasing age there was greater post-error slowing. In conclusion, the neural systems underlying action-monitoring continue to mature throughout the second decade of life, and are associated with increased efficiency for fast error detection and correction during complex tasks. [source] Pap test discrepancies and follow-up histologyDIAGNOSTIC CYTOPATHOLOGY, Issue 2 2003Who's right, does it help to know? Abstract Papanicolaou (Pap) test discrepancy rates between cytotechnologists (CTs) and cytopathologists (CPs) are often kept to evaluate the performance of individual CTs. This is based on the unproven assumption that the CP's diagnoses are more likely to be correct. We investigated this assumption using data from our discrepancy files and comparing them to follow-up histology. All Pap test discrepancies were noted between January 1, 2001,December 31, 2001. Surgical pathology files were then searched for follow-up histology within 9 mo of the Pap test. Histologic diagnoses were compared with the previous CT and CP diagnoses, and then judged regarding accuracy. In total, 63,376 Pap tests were evaluated between January 1, 2001,December 31, 2001. There were 795 discrepancies throughout this period (1.25%). One hundred and sixty-six cases with discrepancies had follow-up histology within 9 mo of the Pap test (20.9%). Of downgraded cases (103), CPs were more correct in 51 cases (49.5%), whereas CTs were more correct in 52 cases (50.5%). Of upgraded cases (63), CPs were more correct in 19 cases (30.2%), whereas CTs were more correct in 44 cases (69.8%). Our results suggest that CPs are not more likely to be correct than CTs when there is a discrepancy with the diagnosis of a Pap test, especially when CPs upgrade CT diagnoses. This suggests that discrepancy data may be helpful for evaluating the performance of both CPs and CTs. It may also be of educational use for both CPs and CTs to know the follow-up histology in these cases. Diagn. Cytopathol. 2003;29:111,115. © 2003 Wiley-Liss, Inc. [source] A Tale of Two VectorsDIALECTICA, Issue 4 2009Marc Lange Why (according to classical physics) do forces compose according to the parallelogram of forces? This question has been controversial; it is one episode in a longstanding, fundamental dispute regarding which facts are not to be explained dynamically. If the parallelogram law is explained statically, then the laws of statics are separate from and (in an important sense) "transcend" the laws of dynamics. Alternatively, if the parallelogram law is explained dynamically, then statical laws become mere corollaries to the dynamical laws. I shall attempt to trace the history of this controversy in order to identify what it would be for one or the other of these rival views to be correct. I shall argue that various familiar accounts of natural law (Lewis's Best System Account, laws as contingent relations among universals, and scientific essentialism) not only make it difficult to see what the point of this dispute could have been, but also improperly foreclose some serious scientific options. I will sketch an alternative account of laws (including what their necessity amounts to and what it would be for certain laws to "transcend" others) that helps us to understand what this dispute was all about. [source] What Does the Conservation of Energy Have to Do with Physicalism?DIALECTICA, Issue 4 2006Barbara Montero The conservation of energy law, a law of physics that states that the total energy of any closed system is always conserved, is a bedrock principle that has achieved both broad theoretical and experimental support. Yet if interactive dualism is correct, it is thought that the mind can affect physical objects in violation of the conservation of energy. Thus, some claim, the conservation of energy grounds an argument for physicalism. Although critics of the argument focus on the implausibility of causation requiring the transference of energy, I argue that even if causation requires the transference of energy, once we accept the other required premises of the argument that lie behind any supposed argument from the conservation of energy the law of the conservation of energy is revealed as irrelevant to the question of whether the mental is physical. [source] Misunderstanding Gödel: New Arguments about Wittgenstein and New Remarks by WittgensteinDIALECTICA, Issue 3 2003Victor Rodych The long-standing issue of Wittgenstein's controversial remarks on Gödel's Theorem has recently heated up in a number of different and interesting directions [(Floyd and Putnam. 2000), (Steiner, 2001), (Floyd, 2001)]. In their (2000), Juliet Floyd and Hilary Putnam purport to argue that Wittgenstein's,notorious'(RFM App. III, §8) "Contains a philosophical claim of great interest," namely, "if one assumed. that ,P is provable in Russell's system one should, give up the "translation" of P by the English sentence ,P is not provable'," because if ,P is provable in PM, PM is , -inconsistent, and if PM is ,-inconsistent, we cannot translate ,P'as 'P is not provable in PM'because the predicate,NaturalNo.(x)'in ,P'"cannot be,interpreted" as "x is a natural number." Though Floyd and Putnam do not clearly distinguish the two tasks, they also argue for "The Floyd-Putnam Thesis," namely, that in the 1930's Wittgenstein had a particular (correct) understanding of Gödel's First Incompleteness Theorem. In this paper, I endeavour to show, first, that the most natural and most defensible interpretation of Wittgenstein's (RFM App. III, §8) and the rest of (RFM App. III) is incompatible with the Floyd-Putnam attribution and, second, that evidence from Wittgenstein's Nachla (i.e., a hitherto unknown "proof sketch" of Gödel's reasoning, Wittgenstein's only mention of ,-inconsistency, and Wittgenstein's only mention of "K provable") strongly indicates that the Floyd- Putnam attribution and the Floyd-Putnam Thesis are false. By way of this examination, we shall see that despite a failure to properly understand Gödel's proof,perhaps because, as Kreisel says, Wittgenstein did not read Gödel's 1931 paper prior to 1942-Wittgenstein's 1937,38, 1941 and 1944 remarks indicate that Gödel's result makes no sense from Wittgenstein's own (idiosyncratic) perspective. [source] Reducing redundancy in invasion ecology by integrating hypotheses into a single theoretical frameworkDIVERSITY AND DISTRIBUTIONS, Issue 1 2009Jane A. Catford ABSTRACT Aim, Invasion ecology includes many hypotheses. Empirical evidence suggests that most of these can explain the success of some invaders to some degree in some circumstances. If they all are correct, what does this tell us about invasion? We illustrate the major themes in invasion ecology, and provide an overarching framework that helps organize research and foster links among subfields of invasion ecology and ecology more generally. Location, Global. Methods, We review and synthesize 29 leading hypotheses in plant invasion ecology. Structured around propagule pressure (P), abiotic characteristics (A) and biotic characteristics (B), with the additional influence of humans (H) on P, A and B (hereon PAB), we show how these hypotheses fit into one paradigm. P is based on the size and frequency of introductions, A incorporates ecosystem invasibility based on physical conditions, and B includes the characteristics of invading species (invasiveness), the recipient community and their interactions. Having justified the PAB framework, we propose a way in which invasion research could progress. Results, By highlighting the common ground among hypotheses, we show that invasion ecology is encumbered by theoretical redundancy that can be removed through integration. Using both holistic and incremental approaches, we show how the PAB framework can guide research and quantify the relative importance of different invasion mechanisms. Main conclusions, If the prime aim is to identify the main cause of invasion success, we contend that a top-down approach that focuses on PAB maximizes research efficiency. This approach identifies the most influential factors first, and subsequently narrows the number of potential causal mechanisms. By viewing invasion as a multifaceted process that can be partitioned into major drivers and broken down into a series of sequential steps, invasion theory can be rigorously tested, understanding improved and effective weed management techniques identified. [source] Kinematic transformations for planar multi-directional pseudodynamic testingEARTHQUAKE ENGINEERING AND STRUCTURAL DYNAMICS, Issue 9 2009Oya Mercan Abstract The pseudodynamic (PSD) test method imposes command displacements to a test structure for a given time step. The measured restoring forces and displaced position achieved in the test structure are then used to integrate the equations of motion to determine the command displacements for the next time step. Multi-directional displacements of the test structure can introduce error in the measured restoring forces and displaced position. The subsequently determined command displacements will not be correct unless the effects of the multi-directional displacements are considered. This paper presents two approaches for correcting kinematic errors in planar multi-directional PSD testing, where the test structure is loaded through a rigid loading block. The first approach, referred to as the incremental kinematic transformation method, employs linear displacement transformations within each time step. The second method, referred to as the total kinematic transformation method, is based on accurate nonlinear displacement transformations. Using three displacement sensors and the trigonometric law of cosines, this second method enables the simultaneous nonlinear equations that express the motion of the loading block to be solved without using iteration. The formulation and example applications for each method are given. Results from numerical simulations and laboratory experiments show that the total transformation method maintains accuracy, while the incremental transformation method may accumulate error if the incremental rotation of the loading block is not small over the time step. A procedure for estimating the incremental error in the incremental kinematic transformation method is presented as a means to predict and possibly control the error. Copyright © 2009 John Wiley & Sons, Ltd. [source] Effect of Angular Error on Tissue Doppler Velocities and StrainECHOCARDIOGRAPHY, Issue 7 2003Camilla Storaa M.S. One of the major criticisms of ultrasound Doppler is its angle dependency, that is its ability to measure velocity components directly to or from the transducer only. The present article aims to investigate the impact of this angular error in a clinical setting. Apical two- and four-chamber views were recorded in 43 individuals, and the myocardium was marked by hand in each image. We assume that the main direction of the myocardial velocities is longitudinal and correct for the angular error by backprojecting measured velocities onto the longitudinal direction drawn. Strain was calculated from both corrected and uncorrected velocities in 12 segments for each individual. The results indicate that the difference between strain values calculated from corrected and uncorrected velocities is insignificant in 5 segments and within a decimal range in 11 segments. The biggest difference between measured and corrected strain values was found in the apical segments. Strain is also found to be more robust against angular error than velocities because the difference between corrected and uncorrected values is smaller for strain. Considering that there are multiple sources of noise in ultrasound Doppler measurements, the authors conclude that the angular error has so little impact on longitudinal strain that correction for this error can safely be omitted. (ECHOCARDIOGRAPHY, Volume 20, October 2003) [source] ECONOMIC GROWTH AND THE SEPARATION OF CHURCH AND STATE: THE FRENCH CASEECONOMIC INQUIRY, Issue 4 2010RAPHAËL FRANCK This article provides a test of the secularization hypothesis, which argues that economic growth, industrialization, increased literacy, and low fertility decrease religiosity. It focuses on the elections of the secular politicians who voted in favor of the separation between Church and State in the French Parliament in 1905. If the secularization hypothesis is correct, these secular politicians should have been elected in the most developed areas of France at the turn of the twentieth century. Contrary to the predictions of the secularization hypothesis, we find that the support for secular politicians originated in the rural areas of France. (JEL Z12, D72, N43) [source] Unemployment, growth and taxation in industrial countriesECONOMIC POLICY, Issue 30 2000Francesco Daveri To the layman, the upward trend in European unemployment is related to the slowdown of economic growth. We argue that the layman's view is correct. The increase in European unemployment and the slowdown in economic growth are related, because they stem from a common cause: an excessively rapid growth in the cost of labour. In Europe, labour costs have gone up for many reasons, but one is particularly easy to identify: higher taxes on labour. If wages are set by strong and decentralized trade unions, an increase in labour taxes is shifted onto higher real wages. This has two effects. First, it reduces labour demand, and thus creates unemployment. Secondly, as firms substitute capital for labour, the marginal product of capital falls; over long periods of time, this in turn diminishes the incentive to invest and to grow. The data strongly support this view. According to our estimates, the observed rise of 14 percentage points in labour tax rates between 1965 and 1995 in the EU could account for a rise in EU unemployment of roughly 4 percentage points, a reduction of the investment share of output of about 3 percentage points, and a growth slowdown of about 0.4 percentage points a year. [source] Defining Economics: The Long Road to Acceptance of the Robbins DefinitionECONOMICA, Issue 2009ROGER E. BACKHOUSE Robbins' Essay gave economics a definition that came to dominate the professional literature. This definition laid a foundation that could be seen as justifying both the narrowing of economic theory to the theory of constrained maximization or rational choice and economists' ventures into other social science fields. Though often presented as self-evidently correct, both the definition itself and the developments that it has been used to support were keenly contested. This paper traces the reception, diffusion and contesting of the Robbins definition, arguing that this process took around three decades and that even then there was still significant dissent. [source] From Representation to Emergence: Complexity's challenge to the epistemology of schoolingEDUCATIONAL PHILOSOPHY AND THEORY, Issue 1 2008Deborah Osberg Abstract In modern, Western societies the purpose of schooling is to ensure that school-goers acquire knowledge of pre-existing practices, events, entities and so on. The knowledge that is learned is then tested to see if the learner has acquired a correct or adequate understanding of it. For this reason, it can be argued that schooling is organised around a representational epistemology: one which holds that knowledge is an accurate representation of something that is separate from knowledge itself. Since the object of knowledge is assumed to exist separately from the knowledge itself, this epistemology can also be considered ,spatial.' In this paper we show how ideas from complexity have challenged the ,spatial epistemology' of representation and we explore possibilities for an alternative ,temporal' understanding of knowledge in its relationship to reality. In addition to complexity, our alternative takes its inspiration from Deweyan ,transactional realism' and deconstruction. We suggest that ,knowledge' and ,reality' should not be understood as separate systems which somehow have to be brought into alignment with each other, but that they are part of the same emerging complex system which is never fully ,present' in any (discrete) moment in time. This not only introduces the notion of time into our understanding of the relationship between knowledge and reality, but also points to the importance of acknowledging the role of the ,unrepresentable' or ,incalculable'. With this understanding knowledge reaches us not as something we receive but as a response, which brings forth new worlds because it necessarily adds something (which was not present anywhere before it appeared) to what came before. This understanding of knowledge suggests that the acquisition of curricular content should not be considered an end in itself. Rather, curricular content should be used to bring forth that which is incalculable from the perspective of the present. The epistemology of emergence therefore calls for a switch in focus for curricular thinking, away from questions about presentation and representation and towards questions about engagement and response. [source] An information retrieval system for telephone dialogue in load dispatch centerELECTRICAL ENGINEERING IN JAPAN, Issue 3 2008Osamu Segawa Abstract We have developed an information retrieval system for telephone dialogue in a load dispatch center. In load dispatching operations, the needs for recording and information retrieval of a telephone dialogue are high. The proposed system gives a solution for the task and realizes an information retrieval function with any keywords. The effectiveness of the system is verified by telephone dialogue transcription and information retrieval experiments. With 30 telephone dialogues in a load dispatch center, we obtain 59.5% in average word correct and 44.4% in average word accuracy. In the information retrieval experiment, with 20 keywords, we obtain 87.3% in average precision and 67.2% in average recall. © 2007 Wiley Periodicals, Inc. Electr Eng Jpn, 162(3): 44, 50, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20402 [source] | ||||||||||||||||||||||||||||||||||||||||||||||