47 research outputs found

    DIPLOMACIA E POLÍTICA DOMÉSTICA: A LÓGICA DOS JOGOS DE DOIS NÍVEIS

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    A política doméstica e as relações internacionais com freqüência são inextricavelmente vinculadas; todavia,as teorias existentes (particularmente as estatocêntricas) não levam adequadamente em consideraçõestais vínculos. Quando os líderes nacionais devem obter as ratificações (formais ou informais) dos membrosde seus parlamentos para um acordo internacional, seus comportamentos em negociações refletem os imperativossimultâneos tanto de um jogo de política doméstica quanto de um jogo de política internacional.Usando exemplos de cúpulas econômicas ocidentais, das negociações do Canal do Panamá e do Tratado deVersalhes, dos programas de estabilização do Fundo Monetário Internacional, da Comunidade Européia ede muitos outros contextos diplomáticos, o artigo oferece uma teoria da ratificação. Ele enfatiza o papel daspreferências, coalizões, instituições e práticas domésticas, das estratégias e táticas dos negociadores, daincerteza, das reverberações domésticas das pressões externas e o papel dos interesses do negociador-chefe.Essa teoria de “jogos de dois níveis” também pode ser aplicável a muitos outros fenômenos políticos, taiscomo a dependência, os comitês legislativos e as coalizões multipartidárias

    Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

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    Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat

    Bioinformatic and Biochemical Evidence for the Identification of the Type III Secretion System Needle Protein of Chlamydia trachomatis▿

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    Chlamydia spp. express a functional type III secretion system (T3SS) necessary for pathogenesis and intracellular growth. However, certain essential components of the secretion apparatus have diverged to such a degree as to preclude their identification by standard homology searches of primary protein sequences. One example is the needle subunit protein. Electron micrographs indicate that chlamydiae possess needle filaments, and yet database searches fail to identify a SctF homologue. We used a bioinformatics approach to identify a likely needle subunit protein for Chlamydia. Experimental evidence indicates that this protein, designated CdsF, has properties consistent with it being the major needle subunit protein. CdsF is concentrated in the outer membrane of elementary bodies and is surface exposed as a component of an extracellular needle-like projection. During infection CdsF is detectible by indirect immunofluorescence in the inclusion membrane with a punctuate distribution adjacent to membrane-associated reticulate bodies. Biochemical cross-linking studies revealed that, like other SctF proteins, CdsF is able to polymerize into multisubunit complexes. Furthermore, we identified two chaperones for CdsF, termed CdsE and CdsG, which have many characteristics of the Pseudomonas spp. needle chaperones PscE and PscG, respectively. In aggregate, our data are consistent with CdsF representing at least one component of the extended Chlamydia T3SS injectisome. The identification of this secretion system component is essential for studies involving ectopic reconstitution of the Chlamydia T3SS. Moreover, we anticipate that CdsF could serve as an efficacious target for anti-Chlamydia neutralizing antibodies

    A Phase I Study using low-dose fractionated whole abdominal radiotherapy as a chemopotentiator to full-dose cisplatin for optimally debulked stage III/IV carcinoma of the endometrium

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    To evaluate the feasibility of combining low-dose fractionated whole abdominal radiation (LDF-WAR) with weekly full-dose cisplatin (FD-CDDP) for patients with stage III/IV endometrial carcinoma. Patients with optimally debulked stage III/IV carcinoma of the endometrium (without extra-abdominal disease) were eligible for the study. Postoperatively, patients received the institutional standard systemic chemotherapy and vaginal brachytherapy. Patients then underwent experimental six weekly cycles of FD-CDDP (40 mg/m 2, maximum 70 mg IV) followed by LDF-WAR 6–8 hours after initiation of chemotherapy. In a conservative design, 6 patients were accrued to two sequential cohorts of LDF-WAR, at 0.5 Gy/fraction [Fx] (total 3 Gy) and 0.75 Gy/Fx (total 4.5 Gy). Toxicities and laboratory studies were evaluated at each visit. Twelve patients were enrolled from January 2005 to June 2009 with median follow-up of 13.5 months (range: 5–27 months). Seventy-five percent of enrolled patients had uterine papillary serous histology. Eleven patients at least partially completed therapy (range: 2–6 cycles of FD-CDDP/LDF-WAR) with one additional patient opting out at the higher dose level. Combination therapy overall was well tolerated. Three patients in each cohort experienced grade 3 acute hematologic events with one recorded grade 4 toxicity in the second cohort. Of patients receiving any of the experimental treatment, five have experienced recurrences. Three of these patients were in cohort one and received 0.5 Gy/Fx LDF-WAR. Combination therapy with LDF-WAR as a novel chemopotentiator to FD-CDDP is a feasible adjuvant regimen in optimally debulked patients with stage III/IV endometrial carcinoma. Further investigation is warranted to determine treatment efficacy. ►We evaluate the feasibility of a novel adjuvant treatment regimen for advanced endometrial cancer. ►After systemic chemotherapy, patients receive low-dose fractionated whole abdominal radiation with weekly full-dose cisplatin. ►This regimen is well-tolerated with few dose limiting toxicities
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