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Terms modified by Usual Selected AbstractsThe "Ductilities" in Single Phase Steels from Usual to Nanoscale MicrostructuresADVANCED ENGINEERING MATERIALS, Issue 10 2009Olivier Bouaziz Abstract The control and the improvement of the ductility of nanostructured structural steels is one of the key challenges in assessing the technological viability of this metallurgical strategy. In the present paper, it is shown that more rigorous definitions of the ductility are required in order to avoid possible confusions. After this preliminary work, a more transparent analysis is done concerning the effect of the microstructural scale showing clearly the weaknesses and the strengths of ultra-fine single phase steels. Finally, possible ways to overcome the main limitations are presented. [source] Survey findings on characteristics and health status of clients treated by the federally funded (US) Health Care for the Homeless ProgramsHEALTH & SOCIAL CARE IN THE COMMUNITY, Issue 1 2009Cheryl Zlotnick RN DrPH Abstract For almost two decades, the US Health Care for the Homeless (HCH) Program has funded clinics across the country for homeless populations. Between October and December 2003, for the first time ever, a nationally representative sample of the almost 200 HCH clinics with a response rate of approximately 71% (the HCH User Visit Survey) was created to examine the health status of its users (n = 1017). This study employed the HCH User Visit Survey's cross-sectional data set to evaluate health indicators of individuals using HCH Services with the US population, and compare individuals who reported they routinely used HCH clinics (,usual' HCH users) to those who did not (,non-usual' users). HCH users had poorer health status than the US population (44.0% versus 12.3%, respectively). Usual HCH users had similar healthcare status compared to non-usual users, but were more likely to be uninsured, non-English speakers, and walking or taking public transportation to their medical appointments. Usual versus non-usual HCH users were also more apt to have slept in cars, buses or on the streets in the week prior to the survey (14.8% versus 4.3%, respectively). This study shows that the HCH clinics are serving homeless individuals who have a variety of complex health and psychosocial needs, and its most frequent users are those who experience the most barriers accessing care. [source] Strategy Use by Nonnative English-Speaking Students in an MBA Program: Not Business as Usual!MODERN LANGUAGE JOURNAL, Issue 3 2004Susan Parks Despite the long-standing interest in strategy use and language learning, little attention has been given to how social context may constrain or facilitate this use or the development of new strategies. Drawing on data from a longitudinal qualitative study, we discuss this issue in relation to the experiences of Chinese students from the People's Republic of China, who, following study in English for Academic Purposes courses, registered in a Masters in Business Administration program in a Canadian university. Specifically, we focus on how the contact with the native-English-speaking Canadian students mediated the Chinese students' strategy use in 3 domains: reading, class lectures, and team work. In contrast to the rather simplistic notion evoked in certain portrayals of the good language learner, strategy use as reported herein emerges as a complex, socially situated phenomenon, bound up with issues related to personal identity (Leki, 2001; Norton, 1997, 2000; Spack, 1997). [source] Capital and the Lagos Presidency: Business as Usual?BULLETIN OF LATIN AMERICAN RESEARCH, Issue 3 2002Eduardo Silva Business-state relations in Chile's new democracy had been relatively tension-free for the first two governments of the centre-left Concertación de Partidos por la Democracia. However, during the first two years of the third Concertación administration, under the presidency of Ricardo Lagos, the relationship soured dramatically. At first glance, an ideological shift in the ruling coalition's centre of gravity would seem to explain the change in business-state relations. During the first two governments more conservative factions of the centrist Christian Democratic party had controlled the Concertación. Lagos, on the other hand, represented the left pole of the coalition and his socialist credentials brought the long shadow of the past on his presidency. This, however is an insufficient cause, three additional conditions must also be taken into account. The first one considers changes in the institutional and economic context that eroded the private sector's confidence in the Concertación's commitment to maintain the free-market socioeconomic model imposed under military rule. The second and third conditions are a decline in the electoral fortunes of the Concertación in favour of conservative parties and a shift in power relations among employers' associations towards more confrontational factions. [source] Dielectric Characteristics for Radio Frequency Waves in a Laboratory Dipole PlasmaCONTRIBUTIONS TO PLASMA PHYSICS, Issue 4 2006N. I. Grishanov Abstract Transverse and parallel dielectric permittivity elements have been derived for radio frequency waves in a laboratory dipole magnetic field plasma. Vlasov equation is resolved for both the trapped and untrapped particles as a boundary value problem to define their separate contributions to the dielectric tensor components. To estimate the wave power absorbed in the plasma volume the perturbed electric field and current density components are decomposed in a Fourier series over the poloidal angle. In this case, the dielectric characteristics can be analyzed independently of the solution of the Maxwell's equations. As usual, imaginary part of the parallel permittivity elements is necessary to estimate the electron Landau damping of radio frequency waves, whereas imaginary part of the transverse permittivity elements is important to estimate the wave dissipation by the cyclotron resonances. Computations of the imaginary part of the parallel permittivity elements are carried out in a wide range of the wave frequencies. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) [source] EFFECTIVENESS OF DRUG TREATMENT COURTS: EVIDENCE FROM A RANDOMIZED TRIAL,CRIMINOLOGY AND PUBLIC POLICY, Issue 2 2003DENISE C. GOTTFREDSON Research Summary: Study randomly assigned 235 offenders to drug treatment court (DTC) or "treatment as usual." Analyses of official records collected over a two-year follow-up period show that DTC is reducing crime in a population of drug-addicted offenders. DTC subjects who participated in treatment were significantly less likely to recidivate than were both untreated drug court subjects and control subjects. Policy Implications: Continued enthusiasm for DTCs is warranted. Both sanctions and treatment are important elements of the DTC model. However, DTCs will not necessarily result in cost reductions because DTC and control cases are incarcerated for approximately equal numbers of days. Implementation fidelity is important, and DTCs can be strengthened if they engage a higher percentage of their clients in drug treatment. [source] Mock as screen and opticCRITICAL QUARTERLY, Issue 3 2004Simon Jarvis As its unique approach to the question of generational differences, this essay takes the relationship looks at poetry and modernity; that is, what happens when a style [such as the mock heroic, or the poetically inflated] starts to feel its age, yet doesn't die; and how its readers cope with its resurrections. Moving nimbly from Nigel Slater to Alexander Pope and back, the essay abandons the usual and reduced conception of 'mock' - that it describes trivial happenings but in an elevated language - and instead looks for a better conception, suggesting instead that mock is ubiquitous, both in literature and the everyday, as a broad and all-pervasive style of thinking and feeling. [source] Evaluation of a cognitive behaviourally oriented service for relapse prevention in schizophreniaACTA PSYCHIATRICA SCANDINAVICA, Issue 5 2010S. Klingberg Klingberg S, Wittorf A, Fischer A, Jakob-Deters K, Buchkremer G, Wiedemann G. Evaluation of a cognitive behaviourally oriented service for relapse prevention in schizophrenia. Objective:, There is little work demonstrating the effectiveness of cognitive behaviourally oriented interventions in routine service settings. This pragmatic trial is designed to test the impact of a group treatment service on relapse rates under the conditions of routine health care. Method:, A total of 169 schizophrenia patients were randomly allocated either to a comprehensive cognitive behaviourally oriented service (CBOS) or to treatment as usual (TAU). The primary outcome is the time until the first relapse after discharge from hospital. Relapse was defined as an increase in positive or negative symptoms as assessed with the Positive and Negative Syndrome Scale. Survival analysis has been conducted up to the 6-month assessment. Results:, The mean time to relapse after discharge from hospital in the CBOS group was significantly longer than in the TAU group (log rank test, P = 0.033). This was due to less exacerbations regarding negative symptoms in the CBOS condition (log rank test, P = 0.014). The number of social contacts was improved in the CBOS group only. Conclusion:, The CBOS intervention appears to be beneficial in reducing early negative symptom exacerbations. [source] Psychotherapy for depression among children and adolescents: a systematic reviewACTA PSYCHIATRICA SCANDINAVICA, Issue 2 2007N. Watanabe Objective:, To examine the clinical benefit, the harm and the cost-effectiveness of psychotherapies in comparison with no treatment, waiting-list controls, attention-placebos, and treatment as usual in depressed youths. Method:, Meta-analyses were undertaken by using data from all relevant randomized-controlled trials identified by a comprehensive literature search. The primary outcome was relative risk (RR) of response. Results:, We identified 27 studies containing 35 comparisons and 1744 participants. At post-treatment, psychotherapy was significantly superior (RR = 1.39, 95% CI 1.18,1.65, P = 0.0001, number-needed to treat 4.3). There was an evidence of the existence of small study effects, including a publication bias (P < 0.001). The superiority of psychotherapy was no longer statistically significant (1.18 [0.94,1.47], P = 0.15) at 6-month follow-up. None of the studies reported adverse effects or cost-effectiveness outcomes. Conclusion:, Although the findings were biased by some small positive trials, psychotherapies appear to help depressed youths for the short term, but are no longer significantly favourable at 6-month follow-up. [source] Inelastic spectra for infilled reinforced concrete framesEARTHQUAKE ENGINEERING AND STRUCTURAL DYNAMICS, Issue 15 2004Matja Abstract In two companion papers a simplified non-linear analysis procedure for infilled reinforced concrete frames is introduced. In this paper a simple relation between strength reduction factor, ductility and period (R,µ,T relation) is presented. It is intended to be used for the determination of inelastic displacement ratios and of inelastic spectra in conjunction with idealized elastic spectra. The R,µ,T relation was developed from results of an extensive parametric study employing a SDOF mathematical model composed of structural elements representing the frame and infill. The structural parameters, used in the proposed R,µ,T relation, in addition to the parameters used in a usual (e.g. elasto-plastic) system, are ductility at the beginning of strength degradation, and the reduction of strength after the failure of the infills. Formulae depend also on the corner periods of the elastic spectrum. The proposed equations were validated by comparing results in terms of the reduction factors, inelastic displacement ratios, and inelastic spectra in the acceleration,displacement format, with those obtained by non-linear dynamic analyses for three sets of recorded and semi-artificial ground motions. A new approach was used for generating semi-artificial ground motions compatible with the target spectrum. This approach preserves the basic characteristics of individual ground motions, whereas the mean spectrum of the whole ground motion set fits the target spectrum excellently. In the parametric study, the R,µ,T relation was determined by assuming a constant reduction factor, while the corresponding ductility was calculated for different ground motions. The mean values proved to be noticeably different from the mean values determined based on a constant ductility approach, while the median values determined by the different procedures were between the two means. The approach employed in the study yields a R,µ,T relation which is conservative both for design and performance assessment (compared with a relation based on median values). Copyright © 2004 John Wiley & Sons, Ltd. [source] The Effect of Hemodialysis on Left Ventricular Outflow Tract GradientECHOCARDIOGRAPHY, Issue 6 2010Pawel Petkow Dimitrow M.D. Background: The aim of the study was to assess the effect of hemodialysis (HD) on left ventricular outflow tract gradient (LVOTG) measured both in supine and upright position (provocative maneuver to unload LV cavity by rapid preload reduction). Supine/standing echocardiography was performed immediately before and immediately after HD. For additional verification of the hypothesis about preload-dependence of LVOTG, the echocardiograms after long (2-day delay HD due to weekend) versus short (usual 1-day) pause between HDs were compared. Methods: Forty-one patients on chronic HD (mean age 44 ± 11 years) were examined using a portable hand-carried echocardiograph. In accordance with the prestudy assumption the ultrafiltration volume was significantly greater during HD after a long pause in comparison to HD after a short pause (3707 ± 2826 mL vs. 2665 ± 1152 mL P < 0.05). Results: After a long pause, the mean value of LVOTG at the pre-HD was mildly increased in the supine position and remained at a similar level in the upright position (13.1 ± 6.1 vs. 13.6 ± 9.1 mmHg). Mean LVOTG at the post-HD in the supine position was similar to pre-HD, however the orthostatic stress test induced a significant increase of LVOTG (13.9 ± 15.2 vs. 18.2 ± 19.9 mmHg P < 0.05). After a short pause at the pre-HD the LVOTG in the supine position and after the orthostatic provocation was very similar to measurements after long pause (13.3 ± 9.1 vs. 13.3 ± 10.8 mmHg). At the post-HD the mean value of LVOTG increased during upright posture but the differences were of borderline significance (13.2 ± 6.6 vs. 17.9 ± 18.6 mmHg P = 0.052). Conclusions: HD predisposed to standing-provoked LVOTG especially when a long pause (2 days) between HDs induced a greater weight gain and subsequently a larger volume of ultrafiltration was needed to reduce hypervolemia. (Echocardiography 2010;27:603-607) [source] Noncontractible Heterogeneity in Directed SearchECONOMETRICA, Issue 4 2010Michael Peters This paper provides a directed search model designed to explain the residual part of wage variation left over after the impact of education and other observable worker characteristics have been removed. Workers have private information about their characteristics at the time they apply for jobs. Firms value these characteristics differently and can observe them once workers apply. They hire the worker they most prefer. However, the characteristics are not contractible, so firms cannot condition their wages on them. This paper shows how to extend arguments from directed search to handle this, allowing for arbitrary distributions of worker and firm types. The model is used to provide a functional relationship that ties together the wage distribution and the wage,duration function. This relationship provides a testable implication of the model. This relationship suggests a common property of wage distributions that guarantees that workers who leave unemployment at the highest wages also have the shortest unemployment duration. This is in strict contrast to the usual (and somewhat implausible) directed search story in which high wages are always accompanied by higher probability of unemployment. [source] Generalized Method of Moments With Many Weak Moment ConditionsECONOMETRICA, Issue 3 2009Whitney K. Newey Using many moment conditions can improve efficiency but makes the usual generalized method of moments (GMM) inferences inaccurate. Two-step GMM is biased. Generalized empirical likelihood (GEL) has smaller bias, but the usual standard errors are too small in instrumental variable settings. In this paper we give a new variance estimator for GEL that addresses this problem. It is consistent under the usual asymptotics and, under many weak moment asymptotics, is larger than usual and is consistent. We also show that the Kleibergen (2005) Lagrange multiplier and conditional likelihood ratio statistics are valid under many weak moments. In addition, we introduce a jackknife GMM estimator, but find that GEL is asymptotically more efficient under many weak moments. In Monte Carlo examples we find that t -statistics based on the new variance estimator have nearly correct size in a wide range of cases. [source] The dimensionality of alcohol use disorders and alcohol consumption in a cross-national perspectiveADDICTION, Issue 2 2010Guilherme Borges ABSTRACT Aims To replicate the finding that there is a single dimension trait in alcohol use disorders and to test whether the usual 5+ drinks for men and 4+ drinks for women and other measures of alcohol consumption help to improve alcohol use disorder criteria in a series of diverse patients from emergency departments (EDs) in four countries. Design Cross-sectional surveys of patients aged 18 years and older that reflected consecutive arrival at the ED. The Composite International Diagnostic Interview Core was used to obtain a diagnosis of DSM-IV alcohol dependence and alcohol abuse; quantity and frequency of drinking and drunkenness as well as usual number of drinks consumed during the last year. Setting Participants were 5195 injured and non-injured patients attending seven EDs in four countries: Argentina, Mexico, Poland and the United States (between 1995,2001). Findings Using exploratory factor analyses alcohol use disorders can be described as a single, unidimensional continuum without any clear-cut distinction between the criteria for dependence and abuse in all sites. Results from item response theory analyses showed that the current DSM-IV criteria tap people in the middle,upper end of the alcohol use disorder continuum. Alcohol consumption (amount and frequency of use) can be used in all EDs with the current DSM-IV diagnostic criteria to help tap the middle,lower part of this continuum. Even though some specific diagnostic criteria and some alcohol consumption variables showed differential item function across sites, test response curves were invariant for ED sites and their inclusion would not impact the final (total) performance of the diagnostic system. Conclusions DSM-IV abuse and dependence form a unidimensional continuum in ED patients regardless of country of survey. Alcohol consumption variables, if added, would help to tap patients with more moderate severity. The DSM diagnostic system for alcohol use disorders showed invariance and performed extremely well in these samples. [source] Ethnic differences in drinking outcomes following a brief alcohol intervention in the trauma care settingADDICTION, Issue 1 2010Craig A. Field ABSTRACT Background Evidence suggests that brief interventions in the trauma care setting reduce drinking, subsequent injury and driving under the influence (DUI) arrest. However, evidence on the effectiveness of these interventions in ethnic minority groups is lacking. The current study evaluates the efficacy of brief intervention among whites, blacks and Hispanics in the United States. Methods We conducted a two-group parallel randomized trial comparing brief motivational intervention (BMI) and treatment as usual with assessment (TAU+) to evaluate treatment differences in drinking patterns by ethnicity. Patients were recruited from a level 1 urban trauma center over a 2-year period. The study included 1493 trauma patients, including 668 whites, 288 blacks and 537 Hispanics. Hierarchical linear modeling was used to evaluate ethnic differences in drinking outcomes including volume per week, maximum amount consumed in 1 day, percentage days abstinent and percentage days heavy drinking at 6- and 12-month follow-up. Analyses controlled for age, gender, employment status, marital status, prior alcohol treatment, type of injury and injury severity. Special emphasis was given to potential ethnic differences by testing the interaction between ethnicity and BMI. Results At 6- and 12-month follow-up, BMI significantly reduced maximum amount consumed in 1 day (P < 0.001; P < 0.001, respectively) and percentage days heavy drinking (P < 0.05; P < 0.05, respectively) among Hispanics. Hispanics in the BMI group also reduced average volume per week at 12-month follow-up (,2 = 6.8, df = 1, P < 0.01). In addition, Hispanics in TAU+ reduced maximum amount consumed at 6- and 12-month follow-up (P < 0.001; P < 0.001) and volume per week at 12-month follow-up (P < 0.001). Whites and blacks in both BMI and TAU+ reduced volume per week and percentage days heavy drinking at 12-month follow-up (P < 0.001; P < 0.01, respectively) and decreased maximum amount at 6- (P < 0.001) and 12-month follow-up (P < 0.001). All three ethnic groups In both BMI and TAU+ reduced volume per week at 6-month follow-up (P < 0.001) and percentage days abstinent at 6- (P < 0.001) and 12-month follow-up (P < 0.001). Conclusions All three ethnic groups evidenced reductions in drinking at 6- and 12-month follow-up independent of treatment assignment. Among Hispanics, BMI reduced alcohol intake significantly as measured by average volume per week, percentage days heavy drinking and maximum amount consumed in 1 day. [source] Solid Contact Micropipette Ion Selective Electrode for Potentiometric SECMELECTROANALYSIS, Issue 10 2007Gergely Gyetvai Abstract New solid contact ammonium micropipette electrodes (ISE), well applicable in scanning electrochemical microscopy are reported. The solid contact was made of a PEDOT nanowire coated carbon fiber, lowered down close to the orifice, and dipped inside the cocktail being in the pipette tip. This configuration provided low electrical resistance and good potential stability. Submicron tip size, usual in case of micropipette ISE-s easily can be fabricated in this way. The applicability of the electrode in SECM has been proved in SG/TC mode imaging urease enzyme active spots in urea solutions. [source] Facilitating involvement in Alcoholics Anonymous during out-patient treatment: a randomized clinical trialADDICTION, Issue 3 2009Kimberly S. Walitzer ABSTRACT Aim This study evaluated two strategies to facilitate involvement in Alcoholics Anonymous (AA),a 12-Step-based directive approach and a motivational enhancement approach,during skills-focused individual treatment. Design Randomized controlled trial with assessments at baseline, end of treatment and 3, 6, 9 and 12 months after treatment. Participants, setting and intervention A total of 169 alcoholic out-patients (57 women) assigned randomly to one of three conditions: a directive approach to facilitating AA, a motivational enhancement approach to facilitating AA or treatment as usual, with no special emphasis on AA. Measurements Self-report of AA meeting attendance and involvement, alcohol consumption (percentage of days abstinent, percentage of days heavy drinking) and negative alcohol consequences. Findings Participants exposed to the 12-Step directive condition for facilitating AA involvement reported more AA meeting attendance, more evidence of active involvement in AA and a higher percentage of days abstinent relative to participants in the treatment-as-usual comparison group. Evidence also suggested that the effect of the directive strategy on abstinent days was mediated partially through AA involvement. The motivational enhancement approach to facilitating AA had no effect on outcome measures. Conclusions These results suggest that treatment providers can use a 12-Step-based directive approach to effectively facilitate involvement in AA and thereby improve client outcome. [source] The effect of pH and ionic strength on the sorption of sulfachloropyridazine, tylosin, and oxytetracycline to soilENVIRONMENTAL TOXICOLOGY & CHEMISTRY, Issue 4 2006Thomas L. ter Laak Abstract Antimicrobial agents are the most heavily used pharmaceuticals in intensive husbandry. Their usual discharge pathway is application to agricultural land as constituents of animal manure, which is used as fertilizer. Many of these compounds undergo pH-dependent speciation and, therefore, might occur as charged species in the soil environment. Hence, pH and ionic strength of the soil suspension can affect the sorption behavior of these compounds to soil. Consequently, the soil sorption of three antimicrobial agents,sulfachloropyridazine (SCP), tylosin (TYL), and oxytetracycline (OTC),was investigated. Their respective sorption coefficients in two agricultural soils ranged from 1.5 to 1,800 L/kg. Sorption coefficients were greater under acidic conditions. Addition of an electrolyte to the solution led to decreased sorption of TYL and OTC by a factor of 3 to 20, but it did not influence the sorption of SCP. This behavior was analyzed by accounting for the pH-dependent speciation of TYL and OTC and considering the presence of OTC-calcium complexes. It appears that the decreased sorption of TYL and OTC with increasing ionic strength results from competition of the electrolyte cations with the positively charged TYL species and the positively charged OTC complexes. A model linking sorbate speciation with species-specific sorption coefficients can describe the pH dependence of the apparent sorption coefficients. This modeling approach is proposed for implementation in the assessment of sorption of ionizable compounds. [source] Meshing noise effect in design of experiments using computer experimentsENVIRONMETRICS, Issue 5-6 2002J. P. Caire Abstract This work is intended to show the influence of grid length and meshing technique on the empirical modeling of current distribution in an industrial electroplating reactor. This study confirms the interest of usual DOEs for computer experiments. Any 2D mesh generator induced, in this sensitive case, a significant noise representing only less than 5 per cent of the response. The ,experimental error' obeys a normal distribution and the associated replicate SDs represents 20 per cent of the global residual standard deviation. The geometry seems also to influence the corresponding noise. If the current density uniformity could be considered as a severe test, it is obvious that the noise generated by meshing would be amplified for 3D grids that will be in common use in future years. Copyright © 2002 John Wiley & Sons, Ltd. [source] Drinking patterns in mid-adolescence and psychosocial outcomes in late adolescence and early adulthoodADDICTION, Issue 12 2004J. Elisabeth Wells ABSTRACT Aims To describe the pattern of drinking at age 16 and to relate this to outcomes at 16,21 years and 21,25 years across a number of psychosocial domains. Design A prospective birth cohort study with annual follow-up until age 16 then at 18, 21 and 25 years. Setting Christchurch, New Zealand. Participants Of 1265 subjects, 953 were interviewed at age 16. Measurements Multiple measures of family background were collected from birth to 16 years. Alcohol consumption was measured in terms of frequency, usual or last quantity drunk and most drunk per occasion. Problems were also recorded. Questions about psychiatric symptoms enabled Diagnostic and Statistical Manual (DSM) criteria to be applied. Detailed reports on educational outcomes, employment, sexual behaviours and offending were collected. Findings Four latent classes were required to describe drinking at age 16, but these appeared to lie along a single dimension which strongly predicted outcomes at ages 16,21 and 21,25 across all domains (alcohol-related, substance dependence, mental health, education, sexual relationships and offending). After controlling for background and correlates only a small number of outcomes were still related consistently to drinking at age 16 over both periods: most alcohol-related outcomes, the number of sexual partners and the extent of violent offending. Conclusions Drinking at age 16 is a clear indicator of future life-course over most domains in late adolescence and early adulthood. Many of these associations are due to other covariates. Outcomes specific to drinking at age 16 are alcohol outcomes, number of sexual partners and violence. [source] Group motivational enhancement therapy as an adjunct to inpatient treatment for eating disorders: a preliminary study,EUROPEAN EATING DISORDERS REVIEW, Issue 4 2008Helen Y. Dean Abstract Difficulties in fostering eating disorder (ED) patients' motivations to overcome their illness are widely considered to be a major hurdle in the course of successful treatment. However, no previous study has assessed the use of interventions specifically designed to target poor motivation amongst patients with illnesses that are severe enough to warrant hospitalisation. Objective A brief Motivational Enhancement Therapy (MET) group programme for inpatient ED sufferers was developed and evaluated. Method Forty two consecutive inpatients were sequentially allocated to treatment groups. Twenty three inpatients completed a four session MET group programme in addition to routine hospital care. A control group of 19 participants completed treatment as usual (TAU). Results Despite an absence of significant differences between the MET and the TAU groups on the overall formal outcome measures, there were nevertheless differences between the groups. Specifically, the MET groups appeared to foster longer term motivation and engagement, and to promote treatment continuation. Conclusion The results tentatively suggest that MET could be valuable for the treatment of inpatient eating disorder patients and further research is warranted. Copyright © 2007 John Wiley & Sons, Ltd and Eating Disorders Association. [source] The Economics of IPO Stabilisation, Syndicates and Naked ShortsEUROPEAN FINANCIAL MANAGEMENT, Issue 4 2007Tim Jenkinson G3; G24 Abstract Stabilisation is the bidding for and purchase of securities by an underwriter immediately after an offering for the purpose of preventing or retarding a fall in price. Stabilisation is price manipulation, but regulators allow it within strict limits , notably that stabilisation may not occur above the offer price. For legislators and market authorities, a false market is a price worth paying for an orderly market. This paper compares the rationale for regulators' allowing IPO stabilisation with its effects. It finds that stabilisation does have the intended effects, but that underwriters also seem to have other motives to stabilise, including favouring certain aftermarket sellers and enhancing their own reputation and profits. A puzzling aspect of stabilisation is why underwriters create ,naked short' positions which are loss-making to cover when, as is usual, the aftermarket price rises to a premium. We set up a model to show that the lead underwriter may profit from a naked short at the expense of the rest of the syndicate given the way commissions are apportioned between them. We argue that a naked short mitigates the misalignment of interests which stabilisation causes between issuer and lead underwriter, although it does so at the expense of the non-lead underwriters. [source] Why Do Firms Raise Foreign Currency Denominated Debt?EUROPEAN FINANCIAL MANAGEMENT, Issue 4 2001Evidence from Finland This study examines the determinants of the decision to raise currency debt. The results suggest that hedging figures importantly in the currency,of,denomination decision: firms in which exports constitute a significant fraction of net sales are more likely to raise currency debt. However, firms also tend to borrow in periods when the nominal interest rate for the loan currency, relative to other currencies, is lower than usual. This is consistent with the currency debt issue decision being affected by speculative motives. Large firms, with a wider access to the international capital markets, are more likely to borrow in foreign currencies than small firms. [source] Synthesis and Characterisation of [XeF5]3[Ti4F19] Containing a Discrete [Ti4F19]3, AnionEUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 29-30 2009Zoran Mazej Abstract The complex [XeF5]3[Ti4F19] was prepared by reaction of XeF2, TiF4 and UV-irradiated elemental fluorine in anhydrous hydrogen fluoride as the solvent. The crystal structure of [XeF5]3[Ti4F19] consists of [XeF5]+ cations and discrete [Ti4F19]3, anions. The [XeF5] units have usual slightly distorted pseudo-octahedral symmetry. Contrary to the previously reported [Ti4F18]2, anion, where each TiF6 octahedron shares three apexes with three other octahedra, in [Ti4F19]3,, only two ,3 -[TiF6] octahedra share three apexes with three other [TiF6] units. Each of the remaining two ,2 -[TiF6] octahedra shares only two vertices with two of the above-mentioned ,3 -[TiF6] moieties. The Raman spectrum of [XeF5]3[Ti4F19] is in agreement with the presence of [XeF5]+ cations and [Ti4F19]3, anions. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009) [source] Molecular Assembly with Axial Cyanato Ligands and Paddlewheel Tetracarboxylatodiruthenium(II,III) FragmentsEUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 21 2006M. Carmen Barral Abstract Homo and heteropolymetallic chains constructed with [Ru2(,-O2CR)4]+ building blocks and OCN, and [Ag(OCN)2], connectors are described. In the complexes [Ru2{,-O2CC(Me)=CHEt}4(OCN)]n (1) and {[Ru2(,-O2CMe)4][Ag(OCN)2]}n (2) an infrequent ,1,1 - O coordination mode of the OCN, ligand is observed. In addition, the formation of a Ag,OCN bond instead of the Ag,NCO coordination mode, which is more usual, is noteworthy in complex 2. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006) [source] The relationship between baseline value and its change: problems in categorization and the proposal of a new methodEUROPEAN JOURNAL OF ORAL SCIENCES, Issue 4 2005Yu-Kang Tu Oral health researchers have shown great interest in the relationship between the initial status of diseases and subsequent changes following treatment. Two main approaches have been adopted to provide evidence of a positive association between baseline values and their changes following treatment. One approach is to use correlation or regression to test the relationship between baseline measurements and subsequent change (correlation/regression approach). The second approach is to categorize the lesions into subgroups, according to threshold values, and subsequently compare the treatment effects across the two (or more) subgroups (categorization approach). However, the correlation/regression approach suffers a methodological weakness known as mathematical coupling. Consequently, the statistical procedure of testing the null hypothesis becomes inappropriate. Categorization seems to avoid the problem of mathematical coupling, although it still suffers regression to the mean. We show, first, how the appropriate null hypothesis may be established to analyze the relationship between baseline values and change in the correlation approach and, second, we use computer simulations to investigate the impact of regression to the mean on the significance testing of the differences in the average treatment effects (or average baseline values) in the categorization approach. Data available from previous literature are reanalyzed by testing the appropriate null hypotheses and the results are compared to those from testing the usual (incorrect) null hypothesis. The results indicate that both the correlation and categorization approaches can give rise to misleading conclusions and that more appropriate methods, such as Oldham's method and our new approach of deriving the correct null hypothesis, should be adopted. [source] Estimation of net nitrogen flux between the atmosphere and a semi-natural grassland ecosystem in HungaryEUROPEAN JOURNAL OF SOIL SCIENCE, Issue 5 2010A. Machon The aim of this work is to estimate the net N balance (deposition , emission) between the atmosphere and a semi-arid, semi-natural grassland (Bugac station, Central Hungary, CarboEurope IP, NitroEurope IP level 3 site). Dry deposition of N compounds has been determined by the inferential method, based on continuous monitoring of NO2 gas and daily 24-hour concentration measurements of HNO3 vapour, NH3 gas, and NH4+ and NO3, particles, using dry deposition velocities from the literature, measured above surfaces with the same characteristics as Bugac station. The bi-directional flux of NH3 within the atmosphere and the canopy (excluding soil emission) has also been estimated by the inferential method. Wet deposition of nitrate and ammonium ions was calculated on the basis of daily precipitation sampling and concentration measurements of nitrate and ammonium ions. To estimate the soil-atmosphere exchange of different gaseous N forms (N2, NO, N2O, NH3), the DNDC model was used as validated by the chamber measurements of NO and N2O soil emission fluxes. Soil emissions of NO and N2O have been determined by dynamic and static soil chamber methods, respectively. The measurement and modelling activity covers a complete year. Using the measured and modelled data, the calculated N balance at Bugac station between August 2006 and July 2007 is estimated at ,8.8 kg N ha,1 year,1 (deposition) as a sum of the deposition and emission terms (,10.4 and 1.6 kg N ha,1 year,1, respectively). Due to the warm and dry weather during the examined period, wet fluxes were substantially lower than usual, which may also have altered the regular yearly course of dry deposition and emission. [source] Influence of different load models on gear crack path shapes and fatigue livesFATIGUE & FRACTURE OF ENGINEERING MATERIALS AND STRUCTURES, Issue 5 2008S. PODRUG ABSTRACT A computational model for determination of the service life of gears with regard to bending fatigue at gear tooth root is presented. In conventional fatigue models of the gear tooth root, it is usual to approximate actual gear load with a pulsating force acting at the highest point of the single tooth contact. However, in actual gear operation, the magnitude as well as the position of the force changes as the gear rotates. A study to determine the effect of moving gear tooth load on the gear service life is performed. The fatigue process leading to tooth breakage is divided into crack-initiation and crack-propagation period. The critical plane damage model has been used to determine the number of stress cycles required for the fatigue crack initiation. The finite-element method and linear elastic fracture mechanics theories are then used for the further simulation of the fatigue crack growth. [source] Symposium on Welfare Reform under the Labour Government: Part I, Editorial NoteFISCAL STUDIES, Issue 4 2002Article first published online: 2 FEB 200 This symposium arises from a one-day conference held at the Institute for Fiscal Studies on 22 May 2002. The papers presented on that day considered the social security reforms during the first term of the Labour government from a number of perspectives. The three articles published here , and the further three that will follow in Part II of the symposium , are drawn from a broader range of disciplines than is usual for Fiscal Studies papers. [source] The importance of episodic weather events to the ecosystem of the Bering Sea shelfFISHERIES OCEANOGRAPHY, Issue 2 2005NICHOLAS A. BOND Abstract Climate variability on decadal time scales is generally recognized to influence high-latitude marine populations. Our recent work in studying air,sea interactions in the Bering Sea suggests that interannual to decadal climate variability is important through its modulation of the frequencies and magnitudes of weather events on intraseasonal time scales. We hypothesize that it is these weather events that directly impact the marine ecosystem of the Bering Sea shelf. The linkages between the event-scale weather and the ecosystem are illustrated with three examples: walleye pollock (Theragra chalcogramma), Tanner crabs (Chionoecetes bairdi), and coccolithophorid phytoplankton (Emiliania huxleyi). We hypothesize that the strong recruitment of walleye pollock that occurred in 1978, 1982, and 1996 can be attributed in part due to the seasonably strong storms that occurred in the early summer of those years. These storms caused greater than normal mixing of nutrients into the euphotic zone which presumably led to sustained primary productivity after the spring bloom and, possibly, enhanced prey concentrations for pollock larvae and their competitors. Recruitment of Tanner crab was particularly strong for the 1981 and 1984 year-classes. These years had periods of prominent east wind anomalies along the Alaska Peninsula during the previous winter. Such winds promote flow through Unimak Pass, and hence an enhanced flux of nutrient-rich water onto the shelf. This mechanism may have ultimately resulted in favorable feeding conditions for Tanner crab larvae. Finally, an unprecedented coccolithophorid bloom occurred over the Bering Sea shelf in the summer of 1997. This summer featured lighter winds and greater insolation than usual after a spring that included a very strong May storm. This combination brought about a warm, nutrient-poor upper mixed layer by mid-summer. This provided a competitive advantage for coccolithophorid phytoplankton in 1997 and to a lesser extent in 1998. Unusually high concentrations of coccolithophores persisted for the following two years although physical environmental conditions did not remain favorable. While slow variations in the overall aspects of the physical environment may be important for setting the stage, we propose that the significant multi-year adjustments in the marine ecosystem of the Bering Sea shelf are more directly caused by major air,sea interaction events on intraseasonal time scales. [source] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||