Publications by authors named "Ana M Guerra"

We present findings from the Our Voice in Barú project, examining adolescent engagement in citizen science to address environmental and social factors affecting well-being in a semi-rural Afro-descendant community in Latin America. The project aimed to identify barriers and enablers of well-being, informing adolescent-led actions for sustainable environmental changes relevant to adolescent health. Utilizing the Our Voice citizen science method, which involved technology-enabled walks, participatory cartography workshops and community meetings, we engaged adolescents and other community members.

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Objectives: Research trends concerning hearing loss within teen rural populations are limited and current evidence suggests that extended high-frequency audiometry can be a sensitive tool to detect subclinical hearing loss. Moreover, current research emphasises the importance of representing different ethnic populations in science. This study aimed to determine the prevalence of acquired hearing loss through conventional pure-tone (0.

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Extended reduction of [MoCp(μ-Cl)(μ-PBu)(NO)] () with Na(Hg) in acetonitrile (MeCN) at room temperature resulted in an unprecedented full cleavage of the C≡N bond of a coordinated MeCN molecule to yield the vinylidene derivative Na[MoCp(μ-PBu)(μ-CCH)(NO)], which upon protonation with (NH)PF gave the ethylidyne complex [MoCp(μ-PBu)(μ-CMe)(NO)] [Mo1-Mo2 = 2.9218(2) Å] in a selective and reversible way. Controlled reduction of at 273 K yielded instead, after protonation, the 30-electron acetamidinate complex [MoCp(μ-PBu)(μ-κ:κ'-HNCMeNH)(μ-NO)]PF [Mo1-Mo2 = 2.

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Background: Santa Ana is home to an Afro-descendant rural population of the island of Barú in Cartagena, Colombia. While a popular area for tourism, Santa Ana's population is affected by multidimensional poverty, precarious work conditions, homelessness, broken streets and sewer systems, limited quality education, and a lack of recreation and sport spaces. While Santa Ana's Community Action Board aims to unify efforts and resources to solve these problems, the state's capacity to meet the requirements of the Board is limited.

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The novel nitrosyl-bridged complex [WCp(μ-PBu)(μ-κ:η-NO)(CO)(NO)](BAr) [Ar = 3,5-CH(CF)] was prepared in a multistep procedure starting from the hydride [WCp(μ-H)(μ-PBu)(CO)] and involving the new complexes [WCp(μ-PBu)(CO)](BF), [WCp(μ-PBu)(CO)(NO)](BAr), and [W(μ-κ:η-CH)Cp(μ-PBu)(CO)(NO)] as intermediates, which follow from reactions with HBF·OEt, NO, and MeNO·2HO, respectively. The nitrosyl-bridged cation easily added chloride upon reaction with [N(PPh)]Cl, with concomitant NO rearrangement into the terminal coordination mode, to give [WClCp(μ-PBu)(CO)(NO)], and underwent N-O and W-W bond cleavages upon the addition of CNBu to give the mononuclear phosphinoimido complex [WCp(NPBu)(CNBu)](BAr). Another N-O bond cleavage was induced upon photochemical decarbonylation at 243 K, which gave the oxo- and phosphinito-bridged nitrido complex [WCp(N)(μ-O)(μ-OPBu)(NO)](BAr), likely resulting from a N-O bond cleavage step following decarbonylation.

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The triphosphorus complex [MoCp(μ-η:η-P)(μ-PBu)] was prepared in 83% yield by reacting the methyl complex [MoCp(μ-κ:η-CH)(μ-PBu)(μ-CO)] with P at 333 K, a process also giving small amounts of the methyldiphosphenyl complex [MoCp(μ-η:η-PMe)(μ-PBu)(CO)]. The latter could be better prepared by first reacting the anionic complex Na[MoCp(μ-PBu)(μ-CO)] with P to give the diphosphorus derivative Na[MoCp(μ-η:η-P)(μ-PBu)(CO)] and further reaction of the latter with MeI. Density functional theory calculations on the title complex revealed that its triphosphorus group can be viewed as an allylic-like P ligand acting as a six-electron donor via the external P atoms, while coordination of the internal P atom involves donation from the π orbital of the ligand and back-donation to its π* orbital, both interactions having a weakening effect on the Mo-Mo and P-P connections.

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Growing socioeconomic and structural disparities within and between nations have created unprecedented health inequities that have been felt most keenly among the world's youth. While policy approaches can help to mitigate such inequities, they are often challenging to enact in under-resourced and marginalized communities. Community-engaged participatory action research provides an alternative or complementary means for addressing the physical and social environmental contexts that can impact health inequities.

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Carbapenem resistance rates increased exponentially between 2014 and 2017 in Portugal (~80%), especially in . We characterized the population of carbapanemase-producing Enterobacterales (CPE) infecting or colonizing hospitalized patients (2017-2018) in a central hospital from northern Portugal, where KPC-3-producing capsular type K64 has caused an initial outbreak. We gathered phenotypic (susceptibility data), molecular (population structure, carbapenemase, capsular type) and biochemical (FT-IR) data, together with patients' clinical and epidemiological information.

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This paper assesses the potential cohesion effect of a physical activity (PA) school-based intervention potentiated using text messages (SMS) through analyzing longitudinally the friendship network structure and the mechanisms of the formation and dissolution of friendships. Three schools ( = 125 participants) in Bogotá, Colombia, were randomly assigned into three groups: Modulo Activo Recreo Activo (MARA) + SMS (networks 1 and 2), MARA (networks 3 and 4), and control (no intervention: networks 5-7). We collected socio-economic, health-related, network structure, and intervention satisfaction variables in the baseline and after 10 weeks on July-November 2013.

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Depression is the main cause of years lossed due to disability in the world, and it affects 50% more women 50% than men. Perinatal depression has been linked with more anxiety, a chronic course, and disability than depression in other life stages. In spite of its high prevalence and serious health effects on both mother and foetus, it is frequently under-diagnosed.

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Objective: This research aims to apply the definition proposed by the Acute Kidney Injury Network (AKIN) research group to assess the incidence, risk factors, and outcomes in acute kidney injury (AKI) patients admitted at the intensive care unit (ICU).

Design: This is a retrospective cohort study. Patients who were admitted to the ICU from January 1, 2003 to December 31, 2004 were studied.

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