45 research outputs found

    Biocatalytic Synthesis of Polymers of Precisely Defined Structures

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    The fabrication of functional nanoscale devices requires the construction of complex architectures at length scales characteristic of atoms and molecules. Currently microlithography and micro-machining of macroscopic objects are the preferred methods for construction of small devices, but these methods are limited to the micron scale. An intriguing approach to nanoscale fabrication involves the association of individual molecular components into the desired architectures by supramolecular assembly. This process requires the precise specification of intermolecular interactions, which in turn requires precise control of molecular structure

    To Fear is to Gain? The Role of Fear Recognition in Risky Decision Making in TBI Patients and Healthy Controls

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    Fear is an important emotional reaction that guides decision making in situations of ambiguity or uncertainty. Both recognition of facial expressions of fear and decision making ability can be impaired after traumatic brain injury (TBI), in particular when the frontal lobe is damaged. So far, it has not been investigated how recognition of fear influences risk behavior in healthy subjects and TBI patients. The ability to recognize fear is thought to be related to the ability to experience fear and to use it as a warning signal to guide decision making. We hypothesized that a better ability to recognize fear would be related to a better regulation of risk behavior, with healthy controls outperforming TBI patients. To investigate this, 59 healthy subjects and 49 TBI patients were assessed with a test for emotion recognition (Facial Expression of Emotion: Stimuli and Tests) and a gambling task (Iowa Gambling Task (IGT)). The results showed that, regardless of post traumatic amnesia duration or the presence of frontal lesions, patients were more impaired than healthy controls on both fear recognition and decision making. In both groups, a significant relationship was found between better fear recognition, the development of an advantageous strategy across the IGT and less risk behavior in the last blocks of the IGT. Educational level moderated this relationship in the final block of the IGT. This study has important clinical implications, indicating that impaired decision making and risk behavior after TBI can be preceded by deficits in the processing of fear

    A consensus S. cerevisiae metabolic model Yeast8 and its ecosystem for comprehensively probing cellular metabolism

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    Genome-scale metabolic models (GEMs) represent extensive knowledgebases that provide a platform for model simulations and integrative analysis of omics data. This study introduces Yeast8 and an associated ecosystem of models that represent a comprehensive computational resource for performing simulations of the metabolism of Saccharomyces cerevisiae––an important model organism and widely used cell-factory. Yeast8 tracks community development with version control, setting a standard for how GEMs can be continuously updated in a simple and reproducible way. We use Yeast8 to develop the derived models panYeast8 and coreYeast8, which in turn enable the reconstruction of GEMs for 1,011 different yeast strains. Through integration with enzyme constraints (ecYeast8) and protein 3D structures (proYeast8DB), Yeast8 further facilitates the exploration of yeast metabolism at a multi-scale level, enabling prediction of how single nucleotide variations translate to phenotypic traits

    La relazione simmetrica. Analisi del problema nel rapporto di coppia.

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    In the first part of the work the authors introduce the concept of the system as the net of reciprocal interactions and indicate in the 'context''s knowledge the indispensable condition to the understanding of troubles otherwise devoid of meaning; the clinical examples brought on the specific problem of the symmetric escalation in the couple's relation, allow to verify such considerations. In the second part of the work the authors propose an illustrated exposition of some forms of therapeutical intervention proper to the relational approach; in the specific case of the couple's therapy they indicate a change in the relation between the two partners; while this doesn't appear sufficiently guaranteed by the sole reaching of a higher consciousness, on the contrary it can be more easily obtained by inducing, with suitable techniques, the two partners to pragmatically develop new models of interaction

    Il sintomo alcoolico in una terapia di coppia. Studio di un caso clinico affrontato con un approccio relazionale.

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    An analysis is presented of a couple therapy in which the woman was an alcoholic. The relational significance of the symptom is discussed and the main patterns of communication between the partners are analysed. Subsequently, 'strategy' of the treatment is outlined; it was aimed at the disappearance of the symptomatic behavior through a change of the couple's relations. The homeostatic reactions of the system before achievement of the therapeutic objective are stressed. A transcription of the most significant parts of the therapeutic sessions is included

    Neurodevelopmental Outcome in High-Risk Congenital Diaphragmatic Hernia Patients: An Appeal for International Standardization

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    Background: Since mortality in congenital diaphragmatic hernia (CDH) is decreasing, morbidity such as neurodevelopmental outcome is becoming increasingly important. Objectives: We evaluated neurodevelopmental outcome in high-risk CDH patients treated according to the CDH EURO Consortium standardized treatment protocol. Methods: This observational, prospective cohort study was conducted in two European centers. Neurodevelopment of 88 patients (Rotterdam n = 49; Rome n = 39) was assessed at 12 and 24 months with the Bayley Scales of Infant Development (BSID)-II-NL (Rotterdam) or BSID-III (Rome). Data of the centers were analyzed separately. Results: Cognition was normal in 77.8% of children from Rotterdam and in 94.8% from Rome at 12 months, and in 70.7 and 97.4%, respectively, at 24 months. Motor function was normal in 64.3% from Rotterdam and in 81.6% from Rome at 12 months and in 45.7 and 89.8%, respectively, at 24 months. Longer length of hospital stay (LoS) was associated with worse cognitive outcome and motor function; LoS, low socioeconomic status, and ethnicity were associated with lower cognition. Conclusions: At 2 years, most CDH patients have normal cognition, but are at risk for motor function delay. Due to differences in outcomes between centers, careful interpretation is needed before conclusions can be drawn for other centers. Future multicenter collaboration should not only focus on standardization of postnatal care, but also on international standardization of follow-up to identify risk factors and thereby reduce morbidity. (C) 2015 S. Karger AG, Base
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