9,737 research outputs found
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Health Literacy and Treatment Adherence in Hispanic HIV-infected Patients
This study examined health literacy in Hispanic HIV infected patients attending two large public clinics in Miami, Florida and assessed its association with adherence to antiretroviral medications. We performed a cross-sectional study. Eligible participants were enrolled from the Jackson Memorial Hospital HIV outpatient clinic and the University of Miami AIDS clinical research facility. Data were derived from socio-demographic information, the adult AIDS clinical trial group (AACTG) adherence questionnaire, the short test of functional literacy in adults (STOHFLA), and information about HIV clinical stages. Questionnaires were completed by study participants or by the study coordinator in their preferred language and the information about HIV stage was obtained from the medical record. Analysis included descriptive, univariate, and bivariate statistics. Sixty patients participated. There were high rates of low health literacy in this group and low levels of adherence to antiretrovirals. However, there was no statistically significant association between health literacy and medication adherence in 30 days or 4 days prior to the clinic visit. Low health literacy was evident in one-third of participants. Health literacy alone was not associated with adherence to antiretrovirals in this sample. Future studies need to identify factors associated with adherence to antiretrovirals in HIV infected Hispanic individuals to improve disease outcomes
Charge instabilities and topological phases in the extended Hubbard model on the honeycomb lattice with enlarged unit cell
We study spontaneous symmetry breaking in a system of spinless fermions in
the Honeycomb lattice paying special emphasis to the role of an enlarged unit
cell on time reversal symmetry broken phases. We use a tight binding model with
nearest neighbor hopping t and Hubbard interaction V1 and V2 and extract the
phase diagram as a function of electron density and interaction within a mean
field variational approach. The analysis completes the previous work done in
Phys. Rev. Lett. 107, 106402 (2011) where phases with non--trivial topological
properties were found with only a nearest neighbor interaction V1 in the
absence of charge decouplings. We see that the topological phases are
suppressed by the presence of metallic charge density fluctuations. The
addition of next to nearest neighbor interaction V2 restores the topological
non-trivial phases
Patients’ and physicians’ perceptions of teleconsultations
Funding Information: The Regional Health Administration of Lisbon and Tagus Valley funded Dr. Maria's salary and had no role in the study design, data collection, analysis or writing of this article. The present publication was funded by Fundação Ciência e Tecnologia, IP national support through CHRC (UIDP/04923/2020). Publisher Copyright: © The Author(s) 2022.Introduction: Previous qualitative research on teleconsultations has focused on synchronous communication between a patient and a clinician. This study aims to explore physicians' and patients' perceptions of the interaction on the interface between primary care and the Cardiology service of a referral hospital through teleconsultations. Methods: This qualitative study was embedded in an organizational case study concerning the introduction and rollout of a new service model that took place at the point of care. The patients and physicians were recruited for semi-structured interviews until thematic saturation was achieved, between September 2019 - January 2020. The interviews were audiorecorded and anonymized. The transcribed interviews were stored, coded, and analyzed in MAXQDA, following the steps for conventional content analysis. Results: A total of 29 participants were interviewed. Patients and physicians presented clear views about the role of the GP and the cardiologist and their function in overall structure of healthcare. GPs felt their role was to bring expertise in the patient which could supplement the cardiologists' expertise on the condition. However, GPs had to renegotiate roles in the teleconsultations when they saw themselves in a new situation, together with another physician and the patient. Conclusions: Our findings suggest that joint teleconsultations can promote continuity of care for patients in the primary/secondary care interface. Active coordination between physicians with delineation of roles throughout primary-secondary care interface is needed to manage selected patients who may benefit the most from shared care.publishersversionpublishe
Diatoms as a paleoproductivity proxy in the NW Iberian coastal upwelling system (NE Atlantic)
The objective of the current work is to improve our understanding of how water column diatom's abundance and assemblage composition is seasonally transferred from the photic zone to seafloor sediments. To address this, we used a dataset derived from water column, sediment trap and surface sediment samples recovered in the NW Iberian coastal upwelling system. Diatom fluxes (2.2 (+/- 5.6) 10(6) valves m(-2) d(-1)) represented the majority of the siliceous microorganisms sinking out from the photic zone during all studied years and showed seasonal variability. Contrasting results between water column and sediment trap diatom abundances were found during downwelling periods, as shown by the unexpectedly high diatom export signals when diatom- derived primary production achieved their minimum levels. They were principally related to surface sediment remobilization and intense Minho and Douro river discharge that constitute an additional source of particulate matter to the inner continental shelf. In fact, contributions of allochthonous particles to the sinking material were confirmed by the significant increase of both benthic and freshwater diatoms in the sediment trap assemblage. In contrast, we found that most of the living diatom species blooming during highly productive upwelling periods were dissolved during sinking, and only those resistant to dissolution and the Chaetoceros and Leptocylindrus spp. resting spores were susceptible to being exported and buried. Fur-thermore, Chaetoceros spp. dominate during spring-early summer, when persistent northerly winds lead to the upwelling of nutrient-rich waters on the shelf, while Leptocylindrus spp. appear associated with late-summer upwelling relaxation, characterized by water column stratification and nutrient depletion. These findings evidence that the contributions of these diatom genera to the sediment's total marine diatom assemblage should allow for the reconstruction of different past upwelling regimes.CAIBEX [CTM2007-66408-C02-01/MAR]; REIMAGE [CTM2011-30155-C03-03]; Spanish Government, EXCAPA project [10MDS402013PR]; Xunta de Galicia; EU FEDER [INTERREG 2009/2011-0313/RAIA/E]; RAIA. co [INTERREG2011/2013-052/RAIA.co/1E]; CALIBERIA project [PTDC/MAR/102045/2008]; Fundacao para a Ciencia e a Tecnologia (FCT-Portugal) [COMPETE/FEDER-FCOMP01-0124-FEDER-010599]; Xunta de Galicia (Spain) [SFRH/BPD/111433/2015]; FCT (Portugal) [SFRH/BPD/111433/2015]; [SFRH/BD/88439/2012
Towards a Universal Semantic Dictionary
[EN] A novel method for finding linear mappings among word embeddings for several languages, taking as pivot a shared, multilingual embedding space, is proposed in this paper. Previous approaches learned translation matrices between two specific languages, while this method learns translation matrices between a given language and a shared, multilingual space. The system was first trained on bilingual, and later on multilingual corpora as well. In the first case, two different training data were applied: Dinu¿s English¿Italian benchmark data, and English¿Italian translation pairs extracted from the PanLex database. In the second case, only the PanLex database was used. The system performs on English¿Italian languages with the best setting significantly better than the baseline system given by Mikolov, and it provides a comparable performance with more sophisticated systems. Exploiting the richness of the PanLex database, the proposed method makes it possible to learn linear mappings among an arbitrary number of languages.This research was funded by Spanish MINECO and FEDER grant number TIN2017-85854-C4-2-R.Castro-Bleda, MJ.; Iklódi, E.; Recski, G.; Borbély, G. (2019). Towards a Universal Semantic Dictionary. Applied Sciences. 9(19):1-14. https://doi.org/10.3390/app9194060S114919Youn, H., Sutton, L., Smith, E., Moore, C., Wilkins, J. F., Maddieson, I., … Bhattacharya, T. (2016). On the universal structure of human lexical semantics. Proceedings of the National Academy of Sciences, 113(7), 1766-1771. doi:10.1073/pnas.1520752113Ruder, S., Vulić, I., & Søgaard, A. (2019). A Survey of Cross-lingual Word Embedding Models. Journal of Artificial Intelligence Research, 65, 569-631. doi:10.1613/jair.1.11640Bojanowski, P., Grave, E., Joulin, A., & Mikolov, T. (2017). Enriching Word Vectors with Subword Information. Transactions of the Association for Computational Linguistics, 5, 135-146. doi:10.1162/tacl_a_0005
Intracellular trafficking of prohormones and proneuropeptides: Cell type-specific sorting and targeting
Hormones and neuropeptides are usually synthesized as large precursor molecules which must undergo a series of post-translational modifications before they are released from secretory vesicles after stimulation by specific secretagogues. The classical vectorial transport of precursors and mature peptide products from the endoplasmic reticulum (ER) to their site of release has been the subject of intensive studies during the past 25 years, but there are a number of unresolved issues which still challenge cell biologists. The main issues are: (i) the molecular mechanisms underlying targeting and sorting of prohormones within the eukaryotic secretory pathway; (ii) further identification and intracellular site of action of post-translational processing enzymes; (iii) tissue-specific processing of hormone and neuropeptide precursors; and (iv) molecular mechanisms underlying intracellular transport ofl hormone and neuropeptide precursors and their cleavage products to alternative intracellular compartments besides the secretory pathway.Fil: Perone, Marcelo Javier. Universidad Austral. Facultad de Ciencias Biomédicas. Instituto de Investigaciones en Medicina Traslacional. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones en Medicina Traslacional; Argentina. University of Manchester; Reino UnidoFil: Windeatt, Simon. University of Manchester; Reino UnidoFil: Castro, Maria G.. University of Manchester; Reino Unid
Conceptions of acculturation: A review and statement of critical issues
http://dx.doi.org/10.1016/j.socscimed.2011.03.01
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Prevalence of Herpes Simplex Virus 1 and 2 in a Sexually Transmitted Disease Clinic in Miami
The Prevalence of HSV-1 and HSV-2 among STD clinics in Miami is not known. The objective of this study was to evaluate infection rates of HSV 1 and 2, and to describe the socio-demographic characteristics, sexual orientation and co-infection with HIV and other STIs, in individuals attending a Sexually Transmitted Diseases (STD) clinic in Miami. A cross-sectional study of 663 patients tested for HSV type-specific serology or herpes culture during the year 2007 was performed. An overall infection rate of HSV-1 was 42.1% and 36.7% for HSV-2. Statistically higher infection rates for HSV-1and 2 were seen among Hispanics (56.7%, 54.4%) compared to non-Hispanic black (36.80%, 41.70%) and non-Hispanic white patients (6.1%, 3.5%) respectively. Females showed higher HSV-2 infection rates over males, 41.6% vs. 58.4%; p = 0.03. HSV-1 and 2 infection rates were 60.2% and 57.6% among foreign-born individuals, in contrast to 39.8% and 42.4% found among persons born in the United States. Our data shows high infection rates for HSV-1 and 2 in this community, and especially among the Hispanic population. Efforts to decrease acquisition among the Hispanic population should be a focus of future STI prevention programs
Cardiorespiratory fitness and sports activities in children and adolescents with solitary functioning kidney
Background: An increasing number of children with chronic disease require a complete medical examination to
be able to practice physical activity. Particularly children with solitary functioning kidney (SFK) need an accurate
functional evaluation to perform sports activities safely. The aim of our study was to evaluate the influence of regular
physical activity on the cardiorespiratory function of children with solitary functioning kidney.
Method: Twenty-nine patients with congenital SFK, mean age 13.9 ± 5.0 years, and 36 controls (C), mean age
13.8 ± 3.7 years, underwent a cardiorespiratory assessment with spirometry and maximal cardiopulmonary exercise
testing. All subjects were divided in two groups: sedentary (S) and trained (T) patients, by means of a standardized
questionnaire about their weekly physical activity.
Results: We found that mean values of maximal oxygen consumption (VO2max) and exercise time (ET) were higher in
T subjects than in S subjects. Particularly SFK-T presented mean values of VO2max similar to C-T and significantly higher
than C-S (SFK-T: 44.7 ± 6.3 vs C-S: 37.8 ± 3.7 ml/min/kg; p < 0.0008). We also found significantly higher mean values of
ET (minutes) in minutes in SFK-T than C-S subjects (SFK-T: 12.9 ± 1.6 vs C-S: 10.8 ± 2.5 min; p <0.02).
Conclusion: Our study showed that regular moderate/high level of physical activity improve aerobic capacity (VO2max)
and exercise tolerance in congenital SFK patients without increasing the risks for cardiovascular accidents and accordingly
sports activities should be strongly encouraged in SFK patients to maximize health benefit
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