146 research outputs found

    Integrative Versus Distributive Bargaining: Choosing a Problem Resolution Process

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    L'examen des deux méthodes pour résoudre les différends permet de constater que leurs exigences se contredisent.L'approche coopérative ou la négociation interdépendante vise à rechercher le meilleur règlement d'un problème. Les stratégies et les tactiques que l'on utilise s'opposent à l'idée de conflit ou à l'approche de contestation. Le processus choisi, dans une situation donnée, repose en premier lieu sur le fait qu'une partie considère le problème en lui-même. En d'autres termes, y a-t-il possibilité d'un avantage qui est partagé entre les parties ou existe-t-il une possibilité d'accroître leurs avantages mutuels,?En deuxième lieu, le choix du processus peut reposer sur la perception qu'une des parties se fait du point de vue de son adversaire. En d'autres mots, l'adversaire considérera-t-il la question en recourant aux stratégies et aux tactiques d'une approche de coopération ou d'une approche de contestation?Cette double approche, qui repose sur la façon dont on conçoit le problème à résoudre et sur l'opinion que l'on a de l'adversaire, peut conduire à la possibilité de dix situations différentes. (Tableau 1) (Le cas illogique de n'envisager que la possibilité de contestation mais de choisir l'autre méthode ne peut être considéré comme option). Les auteurs estiment que le processus de coopération ne pourra se produire avec certitude que là où les deux parties considèrent le problème et l'adversaire comme s'ils désiraient coopérer dans la recherche d'une solution. Dans les deux autres cas, on peut accepter de suivre un processus de coopération, mais cela dépend de l'attitude initiale d'une partie qui considère le problème ou l'autre partie sous l'angle de la contestation.Les auteurs tirent cette appréciation de trois sources. Ils considèrent d'abord les tactiques inhérentes aux deux méthodes pour régler le problème ainsi que l'effet de ces tactiques sur l'autre partie. En second lieu, ils ont tenu compte de l'expérience acquise en matière de confiance et de méfiance des deux parties l'une envers l'autre. Finalement, ils étudient certains problèmes particuliers dans le domaine de relations professionnelles, soit l'influence d'un groupe sur le comportement de ses agents et l'effet du pouvoir de marchandage dans des rapports professionnels dynamiques.Enfin, les auteurs laissent entendre que l'étude d'un cas unique isolé peut s'appliquer également à des cas à problèmes multiples.This paper examines the antithetical nature of two methods of resolving conflict through negotiation, and suggests there is an appropriate process depending upon how a party views the problem, and how he perceives it being viewed by his opponent

    The access and waiting-time standard for first-episode psychosis: an opportunity for identification and treatment of psychosis risk states?

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    Expansion of early intervention services to identify and clinically manage at-risk mental state for psychosis has been recently commissioned by NHS England. Although this is a welcome development for preventive psychiatry, further clarity is required on thresholds for definition of such risk states and their ability to predict subsequent outcomes. Intervention studies for these risk states have demonstrated that a variety of interventions, including those with fewer adverse effects than antipsychotic medication, may potentially be effective but they should be interpreted with caution

    Little House in the Mountains? A small Mesolithic structure from the Cairngorm Mountains, Scotland

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    This paper describes a small Mesolithic structure from the Cairngorm Mountains, Scotland. Excavations at Caochanan Ruadha identified a small oval structure (c. 3 m×2.2 m) with a central fire setting, in an upland valley (c.540 m asl). The site was occupied at c. 8200 cal BP and demonstrates hunter-gatherer use of the uplands during a period of significant climatic deterioration. The interpretation of the structure is primarily based on the distribution of the lithic assemblage, as the heavily podsolised soils have left no trace of light structural features. The lithic assemblage is specialised, dominated by microlith fragments, and functional analysis has identified different uses of different areas inside the structure. The identification of small, specialised Mesolithic sites is unusual and this paper will discuss the evidence for the presence of the structure and its use, compare it to other Mesolithic structures in Britain and highlight some methodological implications

    Cerebrospinal Fluid Leaks From the Lateral Ventricle: A Case Series

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    OBJECTIVES: Describe the diagnosis and management of lateral skull base (LSB) cerebrospinal fluid (CSF) leaks originating from the lateral ventricle. STUDY DESIGN: Retrospective case review. SETTING: Tertiary referral academic center. PATIENTS: Patients with CSF leaks with direct communication to the lateral ventricle on preoperative imaging. INTERVENTION: Surgical repair via the middle cranial fossa (MCF) approach. MAIN OUTCOME MEASURES: CSF leak patient characteristics (age, sex, body mass index [BMI]) and postoperative course (complications and CSF leak resolution) were collected. RESULTS: Three patients had CSF leaks from the lateral ventricle and all patients demonstrated encephalomalacia of the temporal lobe on preoperative imaging. Encephalomalacia resulted from trauma in one case (age 5) and neurodegeneration in two cases (age 77 and 84). BMI ranged from 16.3 to 26.6 mg/kg2 and follow-up ranged from 4 to 21 months. Two patients presented with preoperative meningitis and all patients had resolution of CSF leaks after MCF repair. With the exception of the higher rate of meningitis, patient presentations did not differ from other spontaneous CSF leaks through middle fossa defects. There were no minor or major postoperative complications. CONCLUSIONS: CSF leaks from the lateral ventricle represent a rare subset of LSB CSF leaks and can occur in non-obese patients secondary to temporal lobe encephalomalacia. The MCF approach allows for repair of the dura and skull base in this cohort of patients with high-flow CSF leaks and loss of brain parenchyma

    Flavour compounds in tomato fruits: identification of loci and potential pathways affecting volatile composition

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    The unique flavour of a tomato fruit is the sum of a complex interaction among sugars, acids, and a large set of volatile compounds. While it is generally acknowledged that the flavour of commercially produced tomatoes is inferior, the biochemical and genetic complexity of the trait has made breeding for improved flavour extremely difficult. The volatiles, in particular, present a major challenge for flavour improvement, being generated from a diverse set of lipid, amino acid, and carotenoid precursors. Very few genes controlling their biosynthesis have been identified. New quantitative trait loci (QTLs) that affect the volatile emissions of red-ripe fruits are described here. A population of introgression lines derived from a cross between the cultivated tomato Solanum lycopersicum and its wild relative, S. habrochaites, was characterized over multiple seasons and locations. A total of 30 QTLs affecting the emission of one or more volatiles were mapped. The data from this mapping project, combined with previously collected data on an IL population derived from a cross between S. lycopersicum and S. pennellii populations, were used to construct a correlational database. A metabolite tree derived from these data provides new insights into the pathways for the synthesis of several of these volatiles. One QTL is a novel locus affecting fruit carotenoid content on chromosome 2. Volatile emissions from this and other lines indicate that the linear and cyclic apocarotenoid volatiles are probably derived from separate carotenoid pools

    Social recovery therapy for young people with emerging severe mental illness: the Prodigy RCT

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    Background Young people with social disability and non-psychotic severe and complex mental health problems are an important group. Without intervention, their social problems can persist and have large economic and personal costs. Thus, more effective evidence-based interventions are needed. Social recovery therapy is an individual therapy incorporating cognitive–behavioural techniques to increase structured activity as guided by the participant’s goals. Objective This trial aimed to test whether or not social recovery therapy provided as an adjunct to enhanced standard care over 9 months is superior to enhanced standard care alone. Enhanced standard care aimed to provide an optimal combination of existing evidence-based interventions. Design A pragmatic, single-blind, superiority randomised controlled trial was conducted in three UK centres: Sussex, Manchester and East Anglia. Participants were aged 16–25 years with persistent social disability, defined as < 30 hours per week of structured activity with social impairment for at least 6 months. Additionally, participants had severe and complex mental health problems, defined as at-risk mental states for psychosis or non-psychotic severe and complex mental health problems indicated by a Global Assessment of Functioning score ≤ 50 persisting for ≥ 6 months. Two hundred and seventy participants were randomised 1 : 1 to either enhanced standard care plus social recovery therapy or enhanced standard care alone. The primary outcome was weekly hours spent in structured activity at 15 months post randomisation. Secondary outcomes included subthreshold psychotic, negative and mood symptoms. Outcomes were collected at 9 and 15 months post randomisation, with maintenance assessed at 24 months. Results The addition of social recovery therapy did not significantly increase weekly hours in structured activity at 15 months (primary outcome treatment effect –4.44, 95% confidence interval –10.19 to 1.31). We found no evidence of significant differences between conditions in secondary outcomes at 15 months: Social Anxiety Interaction Scale treatment effect –0.45, 95% confidence interval –4.84 to 3.95; Beck Depression Inventory-II treatment effect –0.32, 95% confidence interval –4.06 to 3.42; Comprehensive Assessment of At-Risk Mental States symptom severity 0.29, 95% confidence interval –4.35 to 4.94; or distress treatment effect 4.09, 95% confidence interval –3.52 to 11.70. Greater Comprehensive Assessment of At-Risk Mental States for psychosis scores reflect greater symptom severity. We found no evidence of significant differences at 9 or 24 months. Social recovery therapy was not estimated to be cost-effective. The key limitation was that missingness of data was consistently greater in the enhanced standard care-alone arm (9% primary outcome and 15% secondary outcome missingness of data) than in the social recovery therapy plus enhanced standard care arm (4% primary outcome and 9% secondary outcome missingness of data) at 15 months. Conclusions We found no evidence for the clinical superiority or cost-effectiveness of social recovery therapy as an adjunct to enhanced standard care. Both arms made large improvements in primary and secondary outcomes. Enhanced standard care included a comprehensive combination of evidence-based pharmacological, psychotherapeutic and psychosocial interventions. Some results favoured enhanced standard care but the majority were not statistically significant. Future work should identify factors associated with the optimal delivery of the combinations of interventions that underpin better outcomes in this often-neglected clinical group. Trial registration Current Controlled Trials ISRCTN47998710. Funding This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment Vol. 25, No. 70. See the NIHR Journals Library website for further project information

    Clinical and cost-effectiveness of social recovery therapy for the prevention and treatment of long-term social disability among young people with emerging severe mental illness (PRODIGY): randomised controlled trial

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    Background Young people with social disability and severe and complex mental health problems have poor outcomes, frequently struggling with treatment access and engagement. Outcomes may be improved by enhancing care and providing targeted psychological or psychosocial intervention. Aims We aimed to test the hypothesis that adding social recovery therapy (SRT) to enhanced standard care (ESC) would improve social recovery compared with ESC alone. Method A pragmatic, assessor-masked, randomised controlled trial (PRODIGY: ISRCTN47998710) was conducted in three UK centres. Participants (n = 270) were aged 16–25 years, with persistent social disability, defined as under 30 hours of structured activity per week, social impairment for at least 6 months and severe and complex mental health problems. Participants were randomised to ESC alone or SRT plus ESC. SRT was an individual psychosocial therapy delivered over 9 months. The primary outcome was time spent in structured activity 15 months post-randomisation. Results We randomised 132 participants to SRT plus ESC and 138 to ESC alone. Mean weekly hours in structured activity at 15 months increased by 11.1 h for SRT plus ESC (mean 22.4, s.d. = 21.4) and 16.6 h for ESC alone (mean 27.7, s.d. = 26.5). There was no significant difference between arms; treatment effect was −4.44 (95% CI −10.19 to 1.31, P = 0.13). Missingness was consistently greater in the ESC alone arm. Conclusions We found no evidence for the superiority of SRT as an adjunct to ESC. Participants in both arms made large, clinically significant improvements on all outcomes. When providing comprehensive evidence-based standard care, there are no additional gains by providing specialised SRT. Optimising standard care to ensure targeted delivery of existing interventions may further improve outcomes

    Fruit-Surface Flavonoid Accumulation in Tomato Is Controlled by a SlMYB12-Regulated Transcriptional Network

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    The cuticle covering plants' aerial surfaces is a unique structure that plays a key role in organ development and protection against diverse stress conditions. A detailed analysis of the tomato colorless-peel y mutant was carried out in the framework of studying the outer surface of reproductive organs. The y mutant peel lacks the yellow flavonoid pigment naringenin chalcone, which has been suggested to influence the characteristics and function of the cuticular layer. Large-scale metabolic and transcript profiling revealed broad effects on both primary and secondary metabolism, related mostly to the biosynthesis of phenylpropanoids, particularly flavonoids. These were not restricted to the fruit or to a specific stage of its development and indicated that the y mutant phenotype is due to a mutation in a regulatory gene. Indeed, expression analyses specified three R2R3-MYB–type transcription factors that were significantly down-regulated in the y mutant fruit peel. One of these, SlMYB12, was mapped to the genomic region on tomato chromosome 1 previously shown to harbor the y mutation. Identification of an additional mutant allele that co-segregates with the colorless-peel trait, specific down-regulation of SlMYB12 and rescue of the y phenotype by overexpression of SlMYB12 on the mutant background, confirmed that a lesion in this regulator underlies the y phenotype. Hence, this work provides novel insight to the study of fleshy fruit cuticular structure and paves the way for the elucidation of the regulatory network that controls flavonoid accumulation in tomato fruit cuticle
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