Ultra-rapid opiate detoxification using deep sedation and prior oral buprenorphine preparation: long-term results.

BACKGROUND: New methods of ultra-rapid opiate detoxification (URD) under intravenous sedation have been criticized because of limited data on safety and long-term follow-up. Premedication with buprenorphine has been advocated to improve safety by decreasing vomiting. Prior research has not explored URD in socially impaired patients. METHOD: Sixteen patients were detoxified with URD and prospectively evaluated over at least 30 months. Data of this procedure were compared with those of our previous study without buprenorphine preparation (Drug Alcohol Depend. 52(3) (1998) 243). The 16 patients were followed up by a general practitioner (GP) before and after URD. The GPs also supervised the 7-day course of buprenorphine treatment prescribed for the 16 patients prior to URD. RESULTS: During the procedure, only one episode of vomiting occurred instead of 13 out of 20 in our previous study. Post-procedure, only two patients experienced moderate withdrawal symptoms, such as persistent nausea, abdominal cramps and vomiting lasting from 24 to 48 h, in comparison with most patients in the previous study without buprenorphine. After a period of at least 30 months (36.0+/-6.38), the 16 patients were still alive and were regularly monitored by their GP. Only two of the 16 never relapsed after URD and reported total opiate abstinence. Fourteen patients relapsed; 12 of these were prescribed a licensed methadone substitution program and two were still using heroin. CONCLUSION: In this small sample, the data indicated that URD with buprenorphine preparation was safe and that it markedly decreased post-procedure morbidity. No patient died over a minimum 30-month follow-up period. Furthermore, the procedure was employed with socially impaired patients. In the long term, a few patients were still free of opiates, while the majority opted for a methadone maintenance program, showing that URD can serve as one possible step in a long-term treatment program.

Résultats de la chirurgie des adénomes hypophysaires non fonctionnels de découverte fortuite : étude multicentrique entre Lyon et Lausanne

Introduction.- La découverte fortuite d'un adénome hypophysaire pose le diagnostic d'incidentalome. Un traitement s'impose en cas d'hypersécrétion et/ou troubles visuels. La conduite à tenir, chirurgie ou surveillance, est discutable en l'absence de symptômes et/ou en présence d'une insuffisance antéhypophysaire (IAH) seule pour les incidentalomes hypophysaires non fonctionnels (IHNF). Dans ce travail multicentrique rétrospectif, nous avons étudié le devenir post-chirurgical d'une série d'IHNF asymptomatiques ou ne présentant qu'une IAH. Matériel et méthodes.- Durant la période 2001-2011, parmi les 853 patients opérés d'un adénome hypophysaire par voie transsphénoïdale, les cas d'IHNF étaient sélectionnés. Tous les patients étaient explorés en pré- et postopératoire à 3, 6 et tous les 12 mois avec explorations endocriniennes, ophtalmologique, et radiologique (IRM sans et avec contraste). Les résultats étaient jugés sur le bilan postopératoire à 6 mois (qualité de résection par IRM, résultats endocriniens, ophtalmologiques, morbidité postopératoire). Résultats ou cas rapporté.- Sur 66 IHNF, 34 (52 %) étaient asymptomatiques ou en IAH seule. La céphalée était à l'origine du bilan dans 44 %. Il s'agissait de macroadénomes (hauteur médiane : 18 mm, Knosp 0-1 : 27 %, Knosp 2 : 38 %, Knosp 3 : 32 %, Knosp 4 : 3 %). Neuf patients étaient en IAH. En postopératoire, l'exérèse était totale dans 76 %. Aucun patient n'était aggravé sur le plan visuel. Sur le plan endocrinien, 33 % des patients avec IAH étaient normalisés, 11,5 % améliorés, 44 % stables et 11,5 % aggravés. Les sujets sans IAH étaient aggravés dans 16 %. La morbidité comportait aussi 3 % de fistules de LCR, 3 % de diabète insipide et 3 % de méningite. Il n'y avait pas de différence significative avec la population d'IHNF symptomatiques en termes de qualité d'exérèse, de morbidité mais globalement les résultats ophtalmologiques et endocriniens étaient supérieurs. Conclusion.- Des études ont montré que 67 % des IHNF devenaient symptomatiques avec 12 % de risque d'apoplexie pituitaire sur une période de 5 ans. Cet argument allié à l'absence de morbidité ophtalmologique rend raisonnable la proposition d'une chirurgie d'exérèse précoce donnant de meilleurs résultats fonctionnels pour les IHNF asymptomatiques.

Results of An International Study of Quantitative BCR/ABL Assays Using Defined RNA Samples

Molecular monitoring of BCR/ABL transcripts by real time quantitative reverse transcription PCR (qRT-PCR) is an essential technique for clinical management of patients with BCR/ABL-positive CML and ALL. Though quantitative BCR/ABL assays are performed in hundreds of laboratories worldwide, results among these laboratories cannot be reliably compared due to heterogeneity in test methods, data analysis, reporting, and lack of quantitative standards. Recent efforts towards standardization have been limited in scope. Aliquots of RNA were sent to clinical test centers worldwide in order to evaluate methods and reporting for e1a2, b2a2, and b3a2 transcript levels using their own qRT-PCR assays. Total RNA was isolated from tissue culture cells that expressed each of the different BCR/ABL transcripts. Serial log dilutions were prepared, ranging from 100 to 10-5, in RNA isolated from HL60 cells. Laboratories performed 5 independent qRT-PCR reactions for each sample type at each dilution. In addition, 15 qRT-PCR reactions of the 10-3 b3a2 RNA dilution were run to assess reproducibility within and between laboratories. Participants were asked to run the samples following their standard protocols and to report cycle threshold (Ct), quantitative values for BCR/ABL and housekeeping genes, and ratios of BCR/ABL to housekeeping genes for each sample RNA. Thirty-seven (n=37) participants have submitted qRT-PCR results for analysis (36, 37, and 34 labs generated data for b2a2, b3a2, and e1a2, respectively). The limit of detection for this study was defined as the lowest dilution that a Ct value could be detected for all 5 replicates. For b2a2, 15, 16, 4, and 1 lab(s) showed a limit of detection at the 10-5, 10-4, 10-3, and 10-2 dilutions, respectively. For b3a2, 20, 13, and 4 labs showed a limit of detection at the 10-5, 10-4, and 10-3 dilutions, respectively. For e1a2, 10, 21, 2, and 1 lab(s) showed a limit of detection at the 10-5, 10-4, 10-3, and 10-2 dilutions, respectively. Log %BCR/ABL ratio values provided a method for comparing results between the different laboratories for each BCR/ABL dilution series. Linear regression analysis revealed concordance among the majority of participant data over the 10-1 to 10-4 dilutions. The overall slope values showed comparable results among the majority of b2a2 (mean=0.939; median=0.9627; range (0.399 - 1.1872)), b3a2 (mean=0.925; median=0.922; range (0.625 - 1.140)), and e1a2 (mean=0.897; median=0.909; range (0.5174 - 1.138)) laboratory results (Fig. 1-3)). Thirty-four (n=34) out of the 37 laboratories reported Ct values for all 15 replicates and only those with a complete data set were included in the inter-lab calculations. Eleven laboratories either did not report their copy number data or used other reporting units such as nanograms or cell numbers; therefore, only 26 laboratories were included in the overall analysis of copy numbers. The median copy number was 348.4, with a range from 15.6 to 547,000 copies (approximately a 4.5 log difference); the median intra-lab %CV was 19.2% with a range from 4.2% to 82.6%. While our international performance evaluation using serially diluted RNA samples has reinforced the fact that heterogeneity exists among clinical laboratories, it has also demonstrated that performance within a laboratory is overall very consistent. Accordingly, the availability of defined BCR/ABL RNAs may facilitate the validation of all phases of quantitative BCR/ABL analysis and may be extremely useful as a tool for monitoring assay performance. Ongoing analyses of these materials, along with the development of additional control materials, may solidify consensus around their application in routine laboratory testing and possible integration in worldwide efforts to standardize quantitative BCR/ABL testing.

Séquelles radio-induites et tests prédictifs [Radiation-induced sequelae: toward an individual profile]

The impact of curative radiotherapy depends mainly on the total dose delivered homogenously in the targeted volume. Nevertheless, the dose delivery is limited by the tolerated dose of the surrounding healthy tissues. Two different side effects (acute and late) can occur during and after radiotherapy. Of particular interest are the radiation-induced sequelae due to their irreversibility and the potential impact on daily quality of life. In a population treated in one center with the same technique, it appears that individual radiosensitivity clearly exists. In the hypothesis that genetic is involved in this area of research, lymphocytes seem to be the tissue of choice due to easy accessibility. Recently, low percentage of CD4 and CD8 lymphocyte apoptosis were shown to be correlated with high grade of sequelae. In addition, recent data suggest that patients with severe radiation-induced late side effects possess four or more SNP in candidate genes (ATM, SOD2, TGFB1, XRCC1 et XRCC3) and low radiation-induced CD8 lymphocyte apoptosis in vitro.

Promoting Metacognitive Skills in a CSCL environment: implications for instructional and technology design

This paper aims to better understand the development of students’ learning processes when participating actively in a specific Computer Supported Collaborative Learning system called KnowCat. To this end, a longitudinal case study was designed, in which eighteen university students took part in a 12-month (two semesters) learning project. During this time period, the students followed an instructional process, using some elements of KnowCat (KnowCat key features) design to support and improve their interaction processes, especially peer learning processes. Our research involved both supervising the students’ collaborative learning processes throughout the learning project and focusing our analysis on the qualitative evolution of the students’ interaction processes and on the development of metacognitive learning processes. The results of the current research reveal that the instructional application of the CSCL-KnowCat system may favour and improve the development of the students’ metacognitive learning processes. Additionally, the implications of the design of computer supported collaborative learning networks and pedagogical issues are discussed in this paper.

Genome-wide association study of kidney function decline in individuals of European descent.

Genome-wide association studies (GWASs) have identified multiple loci associated with cross-sectional eGFR, but a systematic genetic analysis of kidney function decline over time is missing. Here we conducted a GWAS meta-analysis among 63,558 participants of European descent, initially from 16 cohorts with serial kidney function measurements within the CKDGen Consortium, followed by independent replication among additional participants from 13 cohorts. In stage 1 GWAS meta-analysis, single-nucleotide polymorphisms (SNPs) at MEOX2, GALNT11, IL1RAP, NPPA, HPCAL1, and CDH23 showed the strongest associations for at least one trait, in addition to the known UMOD locus, which showed genome-wide significance with an annual change in eGFR. In stage 2 meta-analysis, the significant association at UMOD was replicated. Associations at GALNT11 with Rapid Decline (annual eGFR decline of 3 ml/min per 1.73 m(2) or more), and CDH23 with eGFR change among those with CKD showed significant suggestive evidence of replication. Combined stage 1 and 2 meta-analyses showed significance for UMOD, GALNT11, and CDH23. Morpholino knockdowns of galnt11 and cdh23 in zebrafish embryos each had signs of severe edema 72 h after gentamicin treatment compared with controls, but no gross morphological renal abnormalities before gentamicin administration. Thus, our results suggest a role in the deterioration of kidney function for the loci GALNT11 and CDH23, and show that the UMOD locus is significantly associated with kidney function decline.Kidney International advance online publication, 10 December 2014; doi:10.1038/ki.2014.361.

Assessment of subjective and hemodynamic tolerance of different high- and low-flux dialysis membranes in patients undergoing chronic intermittent hemodialysis: a randomized controlled trial.

Clinical experience and experimental data suggest that intradialytic hemodynamic profiles could be influenced by the characteristics of the dialysis membranes. Even within the worldwide used polysulfone family, intolerance to specific membranes was occasionally evoked. The aim of this study was to compare hemodynamically some of the commonly used polysulfone dialyzers in Switzerland. We performed an open-label, randomized, cross-over trial, including 25 hemodialysis patients. Four polysulfone dialyzers, A (Revaclear high-flux, Gambro, Stockholm, Sweden), B (Helixone high-flux, Fresenius), C (Xevonta high-flux, BBraun, Melsungen, Germany), and D (Helixone low-flux, Fresenius, Bad Homburg vor der Höhe, Germany), were compared. The hemodynamic profile was assessed and patients were asked to provide tolerance feedback. The mean score (±SD) subjectively assigned to dialysis quality on a 1-10 scale was A 8.4 ± 1.3, B 8.6 ± 1.3, C 8.5 ± 1.6, D 8.5 ± 1.5. Kt/V was A 1.58 ± 0.30, B 1.67 ± 0.33, C 1.62 ± 0.32, D 1.45 ± 0.31. The low- compared with the high-flux membranes, correlated to higher systolic (128.1 ± 13.1 vs. 125.6 ± 12.1 mmHg, P < 0.01) and diastolic (76.8 ± 8.7 vs. 75.3 ± 9.0 mmHg; P < 0.05) pressures, higher peripheral resistance (1.44 ± 0.19 vs. 1.40 ± 0.18 s × mmHg/mL; P < 0.05) and lower cardiac output (3.76 ± 0.62 vs. 3.82 ± 0.59 L/min; P < 0.05). Hypotension events (decrease in systolic blood pressure by >20 mmHg) were 70 with A, 87 with B, 73 with C, and 75 with D (P < 0.01 B vs. A, 0.05 B vs. C and 0.07 B vs. D). The low-flux membrane correlated to higher blood pressure levels compared with the high-flux ones. The Helixone high-flux membrane ensured the best efficiency. Unfortunately, the very same dialyzer correlated to a higher incidence of hypotensive episodes.

Chronic nonbacterial osteomyelitis in children: a retrospective multicenter study.

BACKGROUND: To determine the clinical presentation, current treatment and outcome of children with nonbacterial inflammatory bone disease. METHODS: Retrospective multicenter study of patients entered into the Swiss Pediatric Rheumatology Working Group registry with a diagnosis of chronic nonbacterial osteomyelitis (CNO) and synovitis acne pustulosis hyperostosis osteitis (SAPHO) syndrome. The charts were reviewed for informations about disease presentation, treatment, course and outcome. RESULTS: Forty-one children (31 girls and 10 boys) from 6 pediatric hospitals in Switzerland diagnosed between 1995 and 2010 were included in the study. The diagnosis was multifocal CNO (n = 33), unifocal CNO (n = 4) and SAPHO syndrome (n = 4). Mean age at onset of CNO was 9.5 years (range 1.4-15.6) and mean follow-up time was 52 months (range 6-156 months). Most patients (n = 27) had a chronic persistent disease course (>6 months), 8 patients had a course with one or more relapses and 6 patients had only one episode of CNO. Forty nine percent had received at least one course of antibiotics. In 57% treatment with nonsteroidal anti-inflammatory drugs (NSAID) was sufficient to control the disease. Twelve out of 16 children with NSAID failure subsequently received corticosteroids, methotrexate, TNF α inhibitors, bisphosphonates or a combination of these drugs. CONCLUSIONS: In a multicenter cohort of 41 children 22% started with unifocal lesion with a significant diagnostic delay. A higher proportion presented with chronic persistent disease than with a recurrent form. An osteomyelitis in the pelvic region is significantly associated with other features of juvenile spondylarthritis.

Colorectal Cancer Screening in Switzerland: Cross-Sectional Trends (2007-2012) in Socioeconomic Disparities.

BACKGROUND: Despite universal health care coverage, disparities in colorectal cancer (CRC) screening by income in Switzerland have been reported. However, it is not known if these disparities have changed over time. This study examines the association between socioeconomic position and CRC screening in Switzerland between 2007 and 2012. METHODS: Data from the 2007 (n = 5,946) and 2012 (n = 7,224) population-based Swiss Health Interview Survey data (SHIS) were used to evaluate the association between monthly household income, education, and employment with CRC screening, defined as endoscopy in the past 10 years or fecal occult blood test (FOBT) in the past 2 years. Multivariable Poisson regression was used to estimate prevalence ratios (PR) and 95% Confidence Intervals (CI) adjusting for demographics, health status, and health utilization. RESULTS: CRC screening increased from 18.9% in 2007 to 22.2% in 2012 (padjusted: = 0.036). During the corresponding time period, endoscopy increased (8.2% vs. 15.0%, padjusted:<0.001) and FOBT decreased (13.0% vs. 9.8%, padjusted:0.002). CRC screening prevalence was greater in the highest income (>$6,000) vs. lowest income (≤$2,000) group in 2007 (24.5% vs. 10.5%, PR:1.37, 95%CI: 0.96-1.96) and in 2012 (28.6% vs. 16.0%, PR:1.45, 95%CI: 1.09-1.92); this disparity did not significantly change over time. CONCLUSIONS: While CRC screening prevalence in Switzerland increased from 2007 to 2012, CRC screening coverage remains low and disparities in CRC screening by income persisted over time. These findings highlight the need for increased access to CRC screening as well as enhanced awareness of the benefits of CRC screening in the Swiss population, particularly among low-income residents.

Bone structure assessed by HR-pQCT, TBS and DXL in adult patients with different types of osteogenesis imperfecta.

UNLABELLED: Bone microarchitecture by high-resolution peripheral quantitative computed tomography (HR-pQCT) was assessed in adult patients with mild, moderate, and severe osteogenesis imperfecta (OI). The trabecular bone score (TBS), bone mineral density (BMD) by dual-energy X-ray absorptiometry (DXA), and dual X-ray and laser (DXL) at the calcaneus were likewise assessed in patients with OI. Trabecular microstructure and BMD in particular were severely altered in patients with OI. INTRODUCTION: OI is characterized by high fracture risk but not necessarily by low BMD. The main purpose of this study was to assess bone microarchitecture and BMD at different skeletal sites in different types of OI. METHODS: HR-pQCT was performed in 30 patients with OI (mild OI-I, n = 18 (41.8 [34.7, 55.7] years) and moderate to severe OI-III-IV, n = 12 (47.6 [35.3, 58.4] years)) and 30 healthy age-matched controls. TBS, BMD by DXA at the lumbar spine and hip, as well as BMD by DXL at the calcaneus were likewise assessed in patients with OI only. RESULTS: At the radius, significantly lower trabecular parameters including BV/TV (p = 0.01 and p < 0.0001, respectively) and trabecular number (p < 0.0001 and p < 0.0001, respectively) as well as an increased inhomogeneity of the trabecular network (p < 0.0001 and p < 0.0001, respectively) were observed in OI-I and OI-III-IV in comparison to the control group. Similar results for trabecular parameters were found at the tibia. Microstructural parameters were worse in OI-III-IV than in OI-I. No significant differences were found in cortical thickness and cortical porosity between the three subgroups at the radius. The cortical thickness of the tibia was thinner in OI-I (p < 0.001), but not OI-III-IV, when compared to controls. CONCLUSIONS: Trabecular BMD and trabecular bone microstructure in particular are severely altered in patients with clinical OI-I and OI-III-IV. Low TBS and DXL and their significant associations to HR-pQCT parameters of trabecular bone support this conclusion.

L'impacte d'un programa de tennis com a eina de millora de la qualitat de vida i l'estrès percebut en dones físicament inactives d'entre 43 i 50 anys

Introducció: L’activitat física és una necessitat imprescindible per a la salut de les persones, i tot i ser conscients dels seus beneficis encara es troben alts percentatges d’inactivitat física i sedentarisme. Per aquest motiu, els objectius principals d’aquest estudi són esbrinar si les dones adultes d’entre 43 i 50 anys que realitzen activitat física regularment, més concretament que practiquen l’esport del tennis, tenen una qualitat de vida i un estrès percebut millor que les que no realitzen activitat física, i per tant, valorar l’impacte d’un programa de tennis adequat i específic, és a dir, adaptat a les característiques i les necessitats dels alumnes, com a eina per millorar aquestes dues variables: l’estrès percebut i la qualitat de vida. Metodologia: El treball és un estudi experimental el qual consta d’una mostra total de 12 dones, 6 es varen assignar al grup control (practiquen el tennis) i 6 al grup intervenció (no realitzen AF), i totes elles de manera aleatòria. Les participants del grup intervenció varen realitzar un programa de 8 sessions de 60 minuts de treball durant 4 setmanes, mentre que les participants del grup control van seguir la seva rutina habitual. Les variables dependents (qualitat de vida i estrès percebut) es varen mesurar abans i després de la intervenció. Resultats: Els resultats obtinguts mostren, pel que fa al grup intervenció, millores significatives respecte a les dues variables mentre que el grup control presenta alguna mínima millora puntual però, en general no es produeixen canvis. Quan a la variable de qualitat de vida, les participants del grup intervenció han obtingut millores en les 8 dimensions del qüestionari un cop finalitzat el programa, les quals han estat més significatives pel que fa al rol emocional i la funció física. I respecte a l’estrès percebut, el grup intervenció ha aconsegui reduir el seu nivell d’estrès 3’17 punts. Discussió: Per tant, podem dir que el tennis, amb el disseny adequat d’un programa, millora l’estat de salut de les persones, en aquest cas redueix l’estrès percebut i millora la qualitat de vida. Extretes les conclusions i coneixent l’elevat nombre de dones que practiquen el tennis és de gran interès i molt factible oferir aquest programa a clubs de tennis amb l’objectiu de millorar la salut de les persones.

Worldwide trends in diabetes since 1980: a pooled analysis of 751 population-based studies with 4.4 million participants.

One of the global targets for non-communicable diseases is to halt, by 2025, the rise in the age-standardised adult prevalence of diabetes at its 2010 levels. We aimed to estimate worldwide trends in diabetes, how likely it is for countries to achieve the global target, and how changes in prevalence, together with population growth and ageing, are affecting the number of adults with diabetes. We pooled data from population-based studies that had collected data on diabetes through measurement of its biomarkers. We used a Bayesian hierarchical model to estimate trends in diabetes prevalence-defined as fasting plasma glucose of 7.0 mmol/L or higher, or history of diagnosis with diabetes, or use of insulin or oral hypoglycaemic drugs-in 200 countries and territories in 21 regions, by sex and from 1980 to 2014. We also calculated the posterior probability of meeting the global diabetes target if post-2000 trends continue. We used data from 751 studies including 4,372,000 adults from 146 of the 200 countries we make estimates for. Global age-standardised diabetes prevalence increased from 4.3% (95% credible interval 2.4-7.0) in 1980 to 9.0% (7.2-11.1) in 2014 in men, and from 5.0% (2.9-7.9) to 7.9% (6.4-9.7) in women. The number of adults with diabetes in the world increased from 108 million in 1980 to 422 million in 2014 (28.5% due to the rise in prevalence, 39.7% due to population growth and ageing, and 31.8% due to interaction of these two factors). Age-standardised adult diabetes prevalence in 2014 was lowest in northwestern Europe, and highest in Polynesia and Micronesia, at nearly 25%, followed by Melanesia and the Middle East and north Africa. Between 1980 and 2014 there was little change in age-standardised diabetes prevalence in adult women in continental western Europe, although crude prevalence rose because of ageing of the population. By contrast, age-standardised adult prevalence rose by 15 percentage points in men and women in Polynesia and Micronesia. In 2014, American Samoa had the highest national prevalence of diabetes (>30% in both sexes), with age-standardised adult prevalence also higher than 25% in some other islands in Polynesia and Micronesia. If post-2000 trends continue, the probability of meeting the global target of halting the rise in the prevalence of diabetes by 2025 at the 2010 level worldwide is lower than 1% for men and is 1% for women. Only nine countries for men and 29 countries for women, mostly in western Europe, have a 50% or higher probability of meeting the global target. Since 1980, age-standardised diabetes prevalence in adults has increased, or at best remained unchanged, in every country. Together with population growth and ageing, this rise has led to a near quadrupling of the number of adults with diabetes worldwide. The burden of diabetes, both in terms of prevalence and number of adults affected, has increased faster in low-income and middle-income countries than in high-income countries. Wellcome Trust.

Self, mémoire épisodique et narration chez l'enfant de 6 à 9 ans

Le self est une notion polysémique qui fait l'objet d'un consensus relatif dans plusieurs domaines, dont la psychologie du développement. Elle rend compte de la faculté de s'éprouver le même au fil du temps et de distinguer le « je » qui regarde du « moi » regardé. C'est le garant d'un sens de soi plus ou moins cohérent au fil du temps, en dépit des changements qui surviennent au cours de la vie. Le self combine des processus de réflexivité et d'intersubjectivité. Nous en avons analysé trois composantes fonctionnelles : la mémoire de travail, la mémoire épisodique et la narration, à partir d'un protocole expérimental témoignant de son ontogenèse chez des enfants de 6 à 9 ans (n=24 répartis en deux groupes de 6‐7 et 8-9 ans). Nous avons créé le « jeu informatique du lutin » qui propose un parcours semiorienté dans un monde imaginaire. C'est une narration de soi, opérant la mise en sens des temporalités et des espaces auxquels les événements se réfèrent. Deux semaines après cette « aventure », on recueille la narration des souvenirs épisodiques de cette histoire. Nous avons également utilisé un test de mémoire de travail visuospatiale non verbale. Des différences développementales affectent les dimensions narratives de la mémoire de l'épisode du jeu, comme l'efficacité de la mémoire de travail visuospatiale. Ces développements témoignent d'une augmentation de « l'épaisseur temporelle de la conscience» entre 6 et 9 ans. L'épaisseur de la conscience renvoie fondamentalement à la faculté du self de vivre le temps dans une cyclicité incluant le passé, le présent et le futur anticipé. Le développment observé élargit les possibilités de mettre en lien des mémoires et des scénarios futurs, tout comme les mises en sens des relations aux autres et à soi-­même. Self is a polysemic concept of common use in various scientific fields, among which developmental psychology. It accounts for the capacity to maintain the conviction to be « oneself », always the same through circumstances and throughout my life. This important function contributes in maintaining coherence and some sorte of Ariadne's thread in memory. To analyse the ontogeny of the self, we have focused upon three components : working memory, episodic memory and narration in children aged between 6 and 9 years. We used a non verbal working memory task. It was completed by a video game specially designed for our purpose, in which children were engaged in moving an elf in a landscape changing through seasons, in order to deliver a princess from a mischievous wizard. Two weeks after the game, the children had to tell what happened while they moved the elf. It is a self-narrative that creates a link‐up of temporality and spaces to which the events refer. The narrated episode was assessed for its coherence and continuity dimensions. Developmental differences affect the narrative dimensions of the memory of the episode of the game, as the effectiveness of visuospatial working memory. These developments show an increase in "temporal thickness of consciousness" between 6 and 9 years. The thickness of consciousness basically refers to the ability of the self to live in a cyclical time including past, present and anticipated future. The observed development broadens the possibilities to link memories and future scenarios, like setting sense of relations with others and with oneself.

Termoterapia de banana 'Prata-Anã' no controle de podridões em pós-colheita

O objetivo desse estudo foi determinar a tolerância de banana (Musa spp.) 'Prata-Anã' (AAB) e do fungo Colletotrichum musae à termoterapia no controle de podridões em pós-colheita. Experimentos in vivo e in vitro foram instalados em delineamento inteiramente casualizado, seguindo um esquema fatorial 4x5 (temperatura x tempo). Os tratamentos consistiram na imersão dos frutos (buquês) e do fungo (esporos e micélio) em água aquecida a 47, 50, 53 e 56 ºC, durante 0, 3, 6, 9 e 12 min. A exposição dos frutos a 56 ºC durante 9 min causou escurecimento da casca nas extremidades dos frutos, porém, as características físicas e químicas dos frutos não foram alteradas pelos tratamentos. Frutos inoculados e tratados a 56 ºC durante 6 min não apresentaram podridões nem escurecimento da casca, enquanto aqueles não tratados apresentaram 64% da área lesionada / fruto. A partir das combinações 53 ºC / 9 mi. e 56 ºC / 3 min a germinação de esporos foi reduzida para 4% e 0%, respectivamente. A combinação 56 ºC / 12 min reduziu, mas não paralisou o crescimento micelial. O tratamento 56 ºC / 6 min retardou mas não paralisou o crescimento micelial in vitro, porém foi efetivo no controle completo das podridões in vivo. Esse tratamento evitou a manifestação de podridões no inverno (maio), mas não no verão (novembro), mostrando-se influenciado pelas condições climáticas próximas à colheita dos cachos. A termoterapia pode ser recomendada para controle de podridão em pós-colheita de banana devendo ser ajustada para diferentes estações do ano.