122 research outputs found

    CLINICAL CASE COMMENT “A BOTTOMLESS BARREL”

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    Niño de 10 años por el que consultan a causa de mentiras, “actitudes manipuladoras” y trastornos alimenticios, manifestaciones vivenciadas como “inmanejables” por su entorno familiar, a su vez caracterizado por confusión de roles, escasa posibilidad de regulación de lo pulsional y modos de vinculación violentos e ineficaces en cuanto a la puesta de límites. Concebido desde la fantasmática materna para empoderarla frente a su propia madre, él mismo, identificado con lo demoníaco, manifiesta desear que “le cambien las cosas que hace mal”. Fue un tratamiento llevado a cabo en el contexto del primer año de pandemia (ASPO) en el que la analista, ofertó un espacio de virtualidad que posibilitó un vínculo transferencial en el cual el niño armó juego, y le fue posible ir abandonando las identificaciones que lo enlazaban a lo demoníaco, para poder comenzar a vivir con deseos propios.Je reҫois en consultation un enfant de dix ans à cause de ses mensonges, ses “attitudes manipulatrices” et ses troubles alimentaires, des manifestations vécues comme “ingérables” par son entourage, qui se caractérise à la fois par une confusion des rôles, une faible possibilité de régulation de la force pulsionnelle, et des modes violents pour établir des liens et inefficaces pour mettre des límites. Conҫu dans la perspective fanstasmatique maternelle pour devenir puissante face à sa propre mère, l’enfant, identifié à ce qui est démoniaque, exprime lui-même son désir qu’”on lui change les choses qu’il fait mal”. Ce traitement a été réalisé dans le contexte de la première année de la pandémie (ASPOI/Isolement social préventif obligatoire), où l’analyste a proposé un espace de virtualité rendant possible un lien tranférentiel, dans lequel l’enfant s’est livré au jeu et a pu abandonner peu à peu les identifications qui le reliaient aux idées démoniaques, pour pouvoir commencer à vivre avec ses désirs à lui.A 10-year-old boy is being consulted for his lying, "manipulative behaviors," and eating disorders, which are experienced as "unmanageable" by his family environment. His family is characterized by role confusion, a lack of ability to regulate impulses, and violent and ineffective modes of setting limits. The boy was conceived from his mother's fantasy to empower her against her own mother. He himself, identified with the demonic, expresses a desire to "change the things he does wrong." The treatment was carried out during the first year of the pandemic (ASPO), in which the analyst offered a virtual space that enabled a transference relationship in which the boy played games and was able to gradually abandon the identifications that linked him to the demonic, in order to begin to live with his own desires

    A genomic perspective on the potential of Actinobacillus succinogenes for industrial succinate production

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    <p>Abstract</p> <p>Background</p> <p>Succinate is produced petrochemically from maleic anhydride to satisfy a small specialty chemical market. If succinate could be produced fermentatively at a price competitive with that of maleic anhydride, though, it could replace maleic anhydride as the precursor of many bulk chemicals, transforming a multi-billion dollar petrochemical market into one based on renewable resources. <it>Actinobacillus succinogenes </it>naturally converts sugars and CO<sub>2 </sub>into high concentrations of succinic acid as part of a mixed-acid fermentation. Efforts are ongoing to maximize carbon flux to succinate to achieve an industrial process.</p> <p>Results</p> <p>Described here is the 2.3 Mb <it>A. succinogenes </it>genome sequence with emphasis on <it>A. succinogenes</it>'s potential for genetic engineering, its metabolic attributes and capabilities, and its lack of pathogenicity. The genome sequence contains 1,690 DNA uptake signal sequence repeats and a nearly complete set of natural competence proteins, suggesting that <it>A. succinogenes </it>is capable of natural transformation. <it>A. succinogenes </it>lacks a complete tricarboxylic acid cycle as well as a glyoxylate pathway, and it appears to be able to transport and degrade about twenty different carbohydrates. The genomes of <it>A. succinogenes </it>and its closest known relative, <it>Mannheimia succiniciproducens</it>, were compared for the presence of known Pasteurellaceae virulence factors. Both species appear to lack the virulence traits of toxin production, sialic acid and choline incorporation into lipopolysaccharide, and utilization of hemoglobin and transferrin as iron sources. Perspectives are also given on the conservation of <it>A. succinogenes </it>genomic features in other sequenced Pasteurellaceae.</p> <p>Conclusions</p> <p>Both <it>A. succinogenes </it>and <it>M. succiniciproducens </it>genome sequences lack many of the virulence genes used by their pathogenic Pasteurellaceae relatives. The lack of pathogenicity of these two succinogens is an exciting prospect, because comparisons with pathogenic Pasteurellaceae could lead to a better understanding of Pasteurellaceae virulence. The fact that the <it>A. succinogenes </it>genome encodes uptake and degradation pathways for a variety of carbohydrates reflects the variety of carbohydrate substrates available in the rumen, <it>A. succinogenes</it>'s natural habitat. It also suggests that many different carbon sources can be used as feedstock for succinate production by <it>A. succinogenes</it>.</p

    Evidence-based maternal and perinatal healthcare practices in public hospitals in Argentina

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    Evidence-based medicine Maternal and perinatal health services Prevalence studies Use of maternal and perinatal health practices Objective: To investigate the use of beneficial maternal and perinatal healthcare practices in a network of public maternity hospitals in Argentina. Method: A multicenter, prospective, descriptive study of 6661 deliveries in 9 hospitals. The use of 5 obstetric care practices that reduce maternal and perinatal morbidity and mortality was evaluated. Results: Median use rates for the selected practices were: continuous support for women during childbirth (17.9%); corticosteroids for preterm birth (35.3%); avoidance of episiotomy in primiparous women (41.2%); iron and folate supplementation (52.5%); active management of third stage of labor (93.5%). Conclusion: There is limited use of the selected evidence-based maternal and perinatal practices in public hospitals in Argentina and a large variation in their use among and within hospitals. Efforts should be made to increase the use of these evidence-based practices

    Complete genome sequence of Acidimicrobium ferrooxidans type strain (ICPT)

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    Acidimicrobium ferrooxidans (Clark and Norris 1996) is the sole and type species of the genus, which until recently was the only genus within the actinobacterial family Acidimicrobiaceae and in the order Acidomicrobiales. Rapid oxidation of iron pyrite during autotrophic growth in the absence of an enhanced CO2 concentration is characteristic for A. ferrooxidans. Here we describe the features of this organism, together with the complete genome sequence, and annotation. This is the first complete genome sequence of the order Acidomicrobiales, and the 2,158,157 bp long single replicon genome with its 2038 protein coding and 54 RNA genes is part of the Genomic Encyclopedia of Bacteria and Archaea project

    Complete genome sequence of Pirellula staleyi type strain (ATCC 27377T)

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    Pirellula staleyi Schlesner and Hirsch 1987 is the type species of the genus Pirellula of the family Planctomycetaceae. Members of this pear- or teardrop-shaped bacterium show a clearly visible pointed attachment pole and can be distinguished from other Planctomycetes by a lack of true stalks. Strains closely related to the species have been isolated from fresh and brackish water, as well as from hypersaline lakes. Here we describe the features of this organism, together with the complete genome sequence and annotation. This is the first completed genome sequence of the order Planctomyces and only the second sequence from the phylum Planctobacteria/Planctomycetes. The 6,196,199 bp long genome with its 4773 protein-coding and 49 RNA genes is a part of the Genomic Encyclopedia of Bacteria and Archaea project
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