Pain patients’ experiences of validation and invalidation from physicians before and after multimodal pain rehabilitation: Associations with pain, negative affectivity, and treatment outcome

2017 ◽  
Vol 17 (1) ◽  
pp. 77-86 ◽  
Author(s):  
Sara M. Edlund ◽  
Matilda Wurm ◽  
Fredrik Holländare ◽  
Steven J. Linton ◽  
Alan E. Fruzzetti ◽  
...  
Keyword(s):  
Treatment Outcome ◽  
Negative Affectivity ◽  
Post Treatment ◽  
Patient Perceptions ◽  
The Other ◽  
Pain Interference ◽  
Before And After ◽  
The Stability ◽  
Pain Patients ◽  
Over Time

AbstractBackground and aimsValidating and invalidating responses play an important role in communication with pain patients, for example regarding emotion regulation and adherence to treatment. However, it is unclear how patients’ perceptions of validation and invalidation relate to patient characteristics and treatment outcome. The aim of this study was to investigate the occurrence of subgroups based on pain patients’ perceptions of validation and invalidation from their physicians. The stability of these perceptions and differences between subgroups regarding pain, pain interference, negative affectivity and treatment outcome were also explored.MethodsA total of 108 pain patients answered questionnaires regarding perceived validation and invalidation, pain severity, pain interference, and negative affectivity before and after pain rehabilitation treatment. Two cluster analyses using perceived validation and invalidation were performed, one on pre-scores and one on post-scores. The stability of patient perceptions from pre- to post-treatment was investigated, and clusters were compared on pain severity, pain interference, and negative affectivity. Finally, the connection between perceived validation and invalidation and treatment outcome was explored.ResultsThree clusters emerged both before and after treatment: (1) low validation and heightened invalidation, (2) moderate validation and invalidation, and (3) high validation and low invalidation. Perceptions of validation and invalidation were generally stable over time, although there were individuals whose perceptions changed. When compared to the other two clusters, the low validation/heightened invalidation cluster displayed significantly higher levels of pain interference and negative affectivity post-treatment but not pre-treatment. The whole sample significantly improved on pain interference and depression, but treatment outcome was independent of cluster. Unexpectedly, differences between clusters on pain interference and negative affectivity were only found post-treatment. This appeared to be due to the pre- and post-heightened invalidation clusters not containing the same individuals. Therefore, additional analyses were conducted to investigate the individuals who changed clusters. Results showed that patients scoring high on negative affectivity ended up in the heightened invalidation cluster post-treatment.ConclusionsTaken together, most patients felt understood when communicating with their rehabilitation physician. However, a smaller group of patients experienced the opposite: low levels of validation and heightened levels of invalidation. This group stood out as more problematic, reporting greater pain interference and negative affectivity when compared to the other groups after treatment. Patient perceptions were typically stable over time, but some individuals changed cluster, and these movements seemed to be related to negative affectivity and pain interference. These results do not support a connection between perceived validation and invalidation from physicians (meeting the patients pre- and post-treatment) and treatment outcome. Overall, our results suggest that there is a connection between negative affectivity and pain interference in the patients, and perceived validation and invalidation from the physicians.ImplicationsIn clinical practice, it is important to pay attention to comorbid psychological problems and level of pain interference, since these factors may negatively influence effective communication. A focus on decreasing invalidating responses and/or increasing validating responses might be particularly important for patients with high levels of psychological problems and pain interference.

Analysis of CTBT IMS Hydroacoustic hydrophone station underwater system electronics calibration sequences

2020 ◽  
Author(s):  
Mario Zampolli ◽  
Georgios Haralabus ◽  
Jerry Stanley ◽  
Peter Nielsen
Keyword(s):  
Cross Talk ◽  
The Other ◽  
System Response ◽  
Electronic Noise ◽  
Laboratory Environment ◽  
Accurate Knowledge ◽  
Ascension Island ◽  
Element Input ◽  
The Stability ◽  
Over Time

<p>The end-to-end calibration from the hydrophone ceramic element input to the digitizer output of CTBT IMS Hydroacoustic (HA) hydrophone stations is measured in a laboratory environment before deployment. After the hydrophones are deployed permanently with the Underwater System (UWS) hydrophone triplets, the response of the digitizer component can be measured by activating remotely a relay which excludes the hydrophone ceramic, preamplifier and riser cable, and feeds a pre-stored known waveform into the digitizer circuit via a digital-to-analogue converter. Analysis of these underwater calibration sequences makes it possible to verify the stability of the digitizer response over time and obtain useful information for investigations which require an accurate knowledge of the system response. Results are presented showing the stability of the UWS electronics response over time and one case, pertaining to the H10S triplet of HA10 Ascension Island, where changes in the calibration response appeared after the onset of electronic noise in one hydrophone channel with cross-talk to the other two channels.</p>

The puzzles of union density in Norway

2007 ◽  
Vol 13 (4) ◽  
pp. 653-670 ◽  
Author(s):  
Kristine Nergaard ◽  
Torgeir Aarvaag Stokke
Keyword(s):  
Labour Market ◽  
Unemployment Insurance ◽  
Union Density ◽  
The Other ◽  
European Countries ◽  
Nordic Region ◽  
Insurance Funds ◽  
Market Factors ◽  
The Stability ◽  
Over Time

The level of union density in Norway is medium high, in contrast to the other Nordic countries where high density levels are supported by unemployment insurance funds. Developments in union density over time are stable in Norway, contrary to developments in most western European countries outside the Nordic region. This article traces the effects of unemployment insurance funds by comparing density levels in Norway with those in Finland and Sweden. In addition, the stability witnessed in union density in Norway over time is a particularly puzzling phenomenon, and the authors seek to explain it on the basis of specific institutional and labour market factors.

A New Metric for Automated Stability Identification in Time Domain Milling Simulation

2016 ◽  
Vol 138 (7) ◽  
Author(s):  
Andrew Honeycutt ◽  
Tony L. Schmitz
Keyword(s):  
Time Domain ◽  
Forced Vibration ◽  
Stability Limit ◽  
Experimental Results ◽  
The Other ◽  
Sampled Data ◽  
A Value ◽  
Milling Simulation ◽  
The Stability ◽  
Over Time

A new metric is presented to automatically establish the stability limit for time domain milling simulation signals. It is based on periodically sampled data. Because stable cuts exhibit forced vibration, the sampled points repeat over time. Periodically sampled points for unstable cuts, on the other hand, do not repeat with each tooth passage. The metric leverages this difference to define a numerical value of nominally zero for a stable cut and a value greater than zero for an unstable cut. The metric is described and is applied to numerical and experimental results.

Stability and Constancy of Bully-Victim Behavior

2010 ◽  
Vol 218 (3) ◽  
pp. 185-193 ◽  
Author(s):  
Dagmar Strohmeier ◽  
Petra Wagner ◽  
Christiane Spiel ◽  
Alexander von Eye
Keyword(s):  
High Stability ◽  
Summer Camp ◽  
Correlation Coefficients ◽  
Configural Frequency Analysis ◽  
Before And After ◽  
The Stability ◽  
High Level ◽  
Short Time ◽  
Person Centered Approach ◽  
Over Time

The present paper (1) focused on variables to investigate the stability of bully-victim behavior over time and constancy across settings in preadolescent and adolescent boys and girls and (2) looked at persons to examine whether patterns of change were the same or different between bully-victim groups identified. Data were drawn from two independent short time longitudinal studies. In Study 1, 100 adolescents (59% female) aged 15–19 years (M = 16.4 years) were asked about their bully-victim behavior in school before and after the summer break. In Study 2, 116 preadolescents (49% female) aged 9–15 years (M = 12.2) were asked about their bully-victim behavior in school and in a summer camp. While adolescents did not enter a new group after the summer break, preadolescents entered a new group in the summer camp. On the whole sample level, both over time and across settings bullying showed moderate to high stability and a decrease. Victimization was moderately stable over time but rather unstable across settings. Victimization also decreased over time. With longitudinal cluster analysis (L-CA) both over time and across settings four bully-victim groups were identified: uninvolved, desisting victims, desisting moderate bullies, and escalating high level bullies. In both studies, escalating high level bullies were only boys. Bullying might be used to establish dominance by only a small group of boys when entering a new group or when returning to an old one after some break. Application of the variable-oriented approach using correlation coefficients and MANOVAs and the person-centered approach using L-CA and Configural Frequency Analysis complements each other.

scholarly journals Recovery expectations of neck pain patients do not predict treatments outcome in manual therapy

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
J.-H. A. M. Mutsaers ◽  
A. L. Pool-Goudzwaard ◽  
R. Peters ◽  
B. W. Koes ◽  
A. P. Verhagen
Keyword(s):  
Treatment Outcome ◽  
Neck Pain ◽  
Statistical Significance ◽  
Primary Outcome Measure ◽  
Post Treatment ◽  
Study Patient ◽  
Recovery Expectations ◽  
Manual Therapist ◽  
Precise Relationship ◽  
Pain Patients

Abstract Patient recovery expectations can predict treatment outcome. Little is known about the association of patient recovery expectations on treatment outcome in patients with neck pain consulting a manual therapist. This study evaluates the predictive value of recovery expectations in neck pain patients consulting manual therapists in the Netherlands. The primary outcome measure ‘recovery’ is defined as ‘reduction in pain and perceived improvement’. A prospective cohort study a total of 1195 neck pain patients. Patients completed the Patient Expectancies List (PEL) at baseline (3 item questionnaire, score range from 3 to 12), functional status (NDI), the Global Perceived Effect (GPE) for recovery (7-points Likert scale) post treatment and pain scores (NRS) at baseline and post treatment. The relationship between recovery expectancy and recovery (dichotomized GPE scores) was assessed by logistic regression analysis. Patients generally reported high recovery expectations on all three questions of the PEL (mean sumscores ranging from 11.3 to 11.6). When adjusted for covariates the PEL sum-score did not predict recovery (explained variance was 0.10 for the total PEL). Separately, the first question of the PEL showed predictive potential (OR 3.7; 95%CI 0.19–73.74) for recovery, but failed to reach statistical significance. In this study patient recovery expectations did not predict treatment outcome. Variables predicting recovery were recurrence and duration of pain. The precise relationship between patient recovery expectations and outcome is complex and still inconclusive. Research on patient expectancy would benefit from more consistent use of theoretical expectancy and outcome models.

scholarly journals Ciclos económicos y variables monetarias y financieras en México, 1980-2019: un enfoque de cambio estructural

2021 ◽  
Vol 40 (2) ◽  
pp. 137-158
Author(s):  
Reyna Vergara González ◽  
Pablo Mejía Reyes ◽  
Miguel Angel Díaz Carreño
Keyword(s):  
Structural Changes ◽  
Nominal Exchange Rate ◽  
The Other ◽  
Economic Conditions ◽  
Financial Variables ◽  
The Business Cycle ◽  
The Stability ◽  
The Relationship ◽  
Cycle Indicator ◽  
Over Time

El objetivo de este documento es analizar la relación entre el ciclo económico y diversas variables monetarias y financieras con el fin de determinar si han sido estables en el tiempo, teniendo en cuenta los efectos de las modificaciones en las condiciones económicas generales, la estrategia específica adoptada de política monetaria en diferentes subperiodos y las condiciones institucionales en que esta se maneja. Para probar la estabilidad de estas relaciones, una vez que se obtienen los indicadores del ciclo mediante los filtros convencionales, se emplea la metodología de cambio estructural de Bai y Perron (1998). Los resultados destacan dos cambios estructurales en la relación entre el indicador del ciclo y las variables de inflación, tasa de interés, tipo de cambio nominal y agregados monetarios nominales, uno a mediados de los años ochenta y el otro a mediados de los noventa.   Abstract   This paper aims to analyze the relationship between the business cycle and various monetary and financial variables. In particular, the paper seeks to determine whether this relationship has been stable over time, considering the effects of the changes in the general economic conditions, the specific monetary policy strategy adopted in different subperiods, and the institutional framework in which this is managed. To test the stability of these relationships, once the cycle indicators are obtained using conventional filters, the structural change methodology of Bai and Perron (1998) is used. The results highlight two structural changes in the relationship between the cycle indicator and inflation, interest rate, nominal exchange rate, and nominal monetary aggregates, one in the mid-eighties and the other in the middle of the nineties.

Intellectual Properties Integration

2021 ◽  
Vol 12 (2) ◽  
pp. 32-45
Author(s):  
Rima Boumaza ◽  
Fateh Boutekkouk
Keyword(s):  
The Other ◽  
Other Hand ◽  
Systems On Chip ◽  
Before And After ◽  
On Chip ◽  
Intellectual Properties ◽  
Over Time

Intellectual properties (IPs) integration is becoming more challenging due to the increasing complexity of systems on chip as well as their components. Since no survey is available about this topic, this paper is written to help recently interested researchers in the field to have an idea about IP integration. This paper tries to put the light on IP integration challenges over time and how researchers and industrials have dealt with every challenge. On the other hand, the emergence of the standard IP-XACT for packaging, integrating, and reusing intellectual properties has enabled the development of many integration tools and the enhancement of the already existing ones. In this regard, different solutions are presented in this paper before and after the emergence of the standard enriched with a discussion of different proposed solutions including an attempt to define what is needed to be done else. At the end, the paper concludes by considering a promising tendency that hopefully will mitigate some of IP integration gaps.

Uniformity of Magnification from Different Electron Microscopes

1967 ◽  
Vol 25 ◽  
pp. 32-33
Author(s):  
Godfrey C. Hoskins ◽  
V. Williams ◽  
V. Allison
Keyword(s):  
Diffraction Grating ◽  
The Other ◽  
Carbon Replica ◽  
Electron Microscopes ◽  
The Stability

The method demonstrated is an adaptation of a proven procedure for accurately determining the magnification of light photomicrographs. Because of the stability of modern electrical lenses, the method is shown to be directly applicable for providing precise reproducibility of magnification in various models of electron microscopes.A readily recognizable area of a carbon replica of a crossed-line diffraction grating is used as a standard. The same area of the standard was photographed in Phillips EM 200, Hitachi HU-11B2, and RCA EMU 3F electron microscopes at taps representative of the range of magnification of each. Negatives from one microscope were selected as guides and printed at convenient magnifications; then negatives from each of the other microscopes were projected to register with these prints. By deferring measurement to the print rather than comparing negatives, correspondence of magnification of the specimen in the three microscopes could be brought to within 2%.

The stability of dislocation networks under various oxygen-doping conditions in superconducting Bi2Sr2CaCu2Oy single crystals and their influence on the flux pinning properties

1994 ◽  
Vol 52 ◽  
pp. 802-803
Author(s):  
Y. Feng ◽  
X. Y. Cai ◽  
R. J. Kelley ◽  
D. C. Larbalestier
Keyword(s):  
Single Crystals ◽  
Oxygen Content ◽  
Basal Plane ◽  
Flux Pinning ◽  
Pinning Centers ◽  
Before And After ◽  
Anomalous Peak ◽  
Basal Plane Dislocation ◽  
The Stability ◽  
Further Development

The issue of strong flux pinning is crucial to the further development of high critical current density Bi-Sr-Ca-Cu-O (BSCCO) superconductors in conductor-like applications, yet the pinning mechanisms are still much debated. Anomalous peaks in the M-H (magnetization vs. magnetic field) loops are commonly observed in Bi2Sr2CaCu2Oy (Bi-2212) single crystals. Oxygen vacancies may be effective flux pinning centers in BSCCO, as has been found in YBCO. However, it has also been proposed that basal-plane dislocation networks also act as effective pinning centers. Yang et al. proposed that the characteristic scale of the basal-plane dislocation networksmay strongly depend on oxygen content and the anomalous peak in the M-H loop at ˜20-30K may be due tothe flux pinning of decoupled two-dimensional pancake vortices by the dislocation networks. In light of this, we have performed an insitu observation on the dislocation networks precisely at the same region before and after annealing in air, vacuumand oxygen, in order to verify whether the dislocation networks change with varying oxygen content Inall cases, we have not found any noticeable changes in dislocation structure, regardless of the drastic changes in Tc and the anomalous magnetization. Therefore, it does not appear that the anomalous peak in the M-H loops is controlled by the basal-plane dislocation networks.

Sorbitol enhances the physicochemical stability of B12 vitamers

2020 ◽  
Vol 90 (5-6) ◽  
pp. 439-447 ◽  
Author(s):  
Andrew Hadinata Lie ◽  
Maria V Chandra-Hioe ◽  
Jayashree Arcot
Keyword(s):  
Ascorbic Acid ◽  
Uv Light ◽  
Heat Exposure ◽  
Water Soluble ◽  
Uv Exposure ◽  
Physicochemical Stability ◽  
Before And After ◽  
The Stability

Abstract. The stability of B12 vitamers is affected by interaction with other water-soluble vitamins, UV light, heat, and pH. This study compared the degradation losses in cyanocobalamin, hydroxocobalamin and methylcobalamin due to the physicochemical exposure before and after the addition of sorbitol. The degradation losses of cyanocobalamin in the presence of increasing concentrations of thiamin and niacin ranged between 6%-13% and added sorbitol significantly prevented the loss of cyanocobalamin (p<0.05). Hydroxocobalamin and methylcobalamin exhibited degradation losses ranging from 24%–26% and 48%–76%, respectively; added sorbitol significantly minimised the loss to 10% and 20%, respectively (p < 0.05). Methylcobalamin was the most susceptible to degradation when co-existing with ascorbic acid, followed by hydroxocobalamin and cyanocobalamin. The presence of ascorbic acid caused the greatest degradation loss in methylcobalamin (70%-76%), which was minimised to 16% with added sorbitol (p < 0.05). Heat exposure (100 °C, 60 minutes) caused a greater loss of cyanocobalamin (38%) than UV exposure (4%). However, degradation losses in hydroxocobalamin and methylcobalamin due to UV and heat exposures were comparable (>30%). At pH 3, methylcobalamin was the most unstable showing 79% degradation loss, which was down to 12% after sorbitol was added (p < 0.05). The losses of cyanocobalamin at pH 3 and pH 9 (~15%) were prevented by adding sorbitol. Addition of sorbitol to hydroxocobalamin at pH 3 and pH 9 reduced the loss by only 6%. The results showed that cyanocobalamin was the most stable, followed by hydroxocobalamin and methylcobalamin. Added sorbitol was sufficient to significantly enhance the stability of cobalamins against degradative agents and conditions.

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