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https://www.readbyqxmd.com/read/28539041/outer-membrane-vesicles-derived-from-salmonella-enteritidis-protect-against-the-virulent-wild-type-strain-infection-in-a-mouse-model
#1
Qiong Liu, Jie Yi, Kang Liang, Xiangmin Zhang, Qing Liu
Food-borne contamination and salmonellosis caused by Salmonella Enteritidis (S. Enteritidis) are a significant threat to human health and poultry enterprises. Outer membrane vesicles (OMVs), which are naturally secreted by gram-negative bacteria, could be a good vaccine option because they have many biologically active substances, including lipopolysaccharides (LPS), outer membrane proteins (OMPs), and phospholipids, as well as periplasmic components. In the present study, we purified OMVs derived from S. Enteritidis and analyzed their characteristics through silver staining and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE)...
May 25, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28539004/building-better-medicaid-care
#2
Joey Berlin
The trend away from fee-for-service and toward value-based payment models in the Texas Medicaid program shows some early promise.
May 1, 2017: Texas Medicine
https://www.readbyqxmd.com/read/28538996/the-relationship-between-surface-curvature-and-abdominal-aortic-aneurysm-wall-stress
#3
Sergio Ruiz de Galarreta, Aitor Cazon, Raúl Antón, Ender A Finol
The maximum diameter criterion is the most important factor when predicting risk of rupture of abdominal aortic aneurysms (AAA). An elevated wall stress has also been linked to a high risk of aneurysm rupture, yet is an uncommon clinical practice to compute AAA wall stress. The purpose of this study is to assess whether other characteristics of the AAA geometry are statistically correlated with wall stress. Using in-house segmentation and meshing algorithms, thirty patient-specific AAA models were generated for finite element analysis...
May 24, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28538992/intercepting-a-moving-target-on-line-or-model-based-control
#4
Huaiyong Zhao, William H Warren
When walking to intercept a moving target, people take an interception path that appears to anticipate the target's trajectory. According to the constant bearing strategy, the observer holds the bearing direction of the target constant based on current visual information, consistent with on-line control. Alternatively, the interception path might be based on an internal model of the target's motion, known as model-based control. To investigate these two accounts, participants walked to intercept a moving target in a virtual environment...
May 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28538991/hierarchical-bayesian-measurement-models-for-continuous-reproduction-of-visual-features-from-working-memory
#5
Klaus Oberauer, Colin Stoneking, Dominik Wabersich, Hsuan-Yu Lin
The article presents Bayesian hierarchical modeling frameworks for two measurement models for visual working memory. The models can be applied to the distributions of responses on a circular feature dimension, as obtained with the continuous reproduction (a.k.a. delayed estimation) task. The first measurement model is a mixture model that describes the response distributions as a mixture of one (Zhang & Luck, 2008) or several (Bays, Catalao, & Husain, 2009) von-Mises distribution(s) and a uniform distribution...
May 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28538990/measuring-nonlinear-signal-combination-using-eeg
#6
Darren G M Cunningham, Daniel H Baker, Jonathan W Peirce
Relatively little is known about the processes, both linear and nonlinear, by which signals are combined beyond V1. By presenting two stimulus components simultaneously, flickering at different temporal frequencies (frequency tagging) while measuring steady-state visual evoked potentials, we can assess responses to the individual components, including direct measurements of suppression on each other, and various nonlinear responses to their combination found at intermodulation frequencies. The result is a rather rich dataset of frequencies at which responses can be found...
May 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28538985/numerical-approximation-of-elasticity-tensor-associated-with-green-naghdi-rate
#7
Haofei Liu, Wei Sun
Objective stress rates are often used in commercial finite element (FE) programs. However, deriving a consistent tangent modulus tensor (also known as elasticity tensor or material Jacobian) associated with the objective stress rates is challenging when complex material models are utilized. In this paper, an approximation method for the tangent modulus tensor associated with the Green-Naghdi rate of the Kirchhoff stress is employed to simplify the evaluation process. The effectiveness of the approach is demonstrated through the implementation of two user-defined fiber-reinforced hyperelastic material models...
May 24, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28538983/assocation-of-a-surgical-task-during-training-with-team-skill-acquisition-among-surgical-residents-the-missing-piece-in-multidisciplinary-team-training
#8
Jessica L Sparks, Dustin L Crouch, Kathryn Sobba, Douglas Evans, Jing Zhang, James E Johnson, Ian Saunders, John Thomas, Sarah Bodin, Ashley Tonidandel, Jeff Carter, Carl Westcott, R Shayn Martin, Amy Hildreth
Importance: The human patient simulators that are currently used in multidisciplinary operating room team training scenarios cannot simulate surgical tasks because they lack a realistic surgical anatomy. Thus, they eliminate the surgeon's primary task in the operating room. The surgical trainee is presented with a significant barrier when he or she attempts to suspend disbelief and engage in the scenario. Objective: To develop and test a simulation-based operating room team training strategy that challenges the communication abilities and teamwork competencies of surgeons while they are engaged in realistic operative maneuvers...
May 24, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/28538950/association-of-adjuvant-chemotherapy-with-survival-in-patients-with-stage-ii-or-iii-gastric-cancer
#9
Yuming Jiang, Tuanjie Li, Xiaoling Liang, Yanfeng Hu, Lei Huang, Zhenchen Liao, Liying Zhao, Zhen Han, Shuguang Zhu, Menglan Wang, Yangwei Xu, Xiaolong Qi, Hao Liu, Yang Yang, Jiang Yu, Wei Liu, Shirong Cai, Guoxin Li
Importance: The current staging system of gastric cancer is not adequate for defining a prognosis and predicting the patients most likely to benefit from chemotherapy. Objective: To construct a survival prediction model based on specific tumor and patient characteristics that enables individualized predictions of the net survival benefit of adjuvant chemotherapy for patients with stage II or stage III gastric cancer. Design, Setting, and Participants: In this multicenter retrospective analysis, a survival prediction model was constructed using data from a training cohort of 746 patients with stage II or stage III gastric cancer who satisfied the study's inclusion criteria and underwent surgery between January 1, 2004, and December 31, 2012, at Nanfang Hospital in Guangzhou, China...
May 24, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/28538948/exploring-audiologists-language-and-hearing-aid-uptake-in-initial-rehabilitation-appointments
#10
Anna Sciacca, Carly Meyer, Katie Ekberg, Caitlin Barr, Louise Hickson
Purpose: The study aimed (a) to profile audiologists' language during the diagnosis and management planning phase of hearing assessment appointments and (b) to explore associations between audiologists' language and patients' decisions to obtain hearing aids. Method: Sixty-two audiologist-patient dyads participated. Patient participants were aged 55 years or older. Hearing assessment appointments were audiovisually recorded and transcribed for analysis. Audiologists' language was profiled using two measures: general language complexity and use of jargon...
May 23, 2017: American Journal of Audiology
https://www.readbyqxmd.com/read/28538944/gauging-the-auditory-dimensions-of-dysarthric-impairment-reliability-and-construct-validity-of-the-bogenhausen-dysarthria-scales-bodys
#11
Wolfram Ziegler, Anja Staiger, Theresa Schölderle, Mathias Vogel
Purpose: Standardized clinical assessment of dysarthria is essential for management and research. We present a new, fully standardized dysarthria assessment, the Bogenhausen Dysarthria Scales (BoDyS). The measurement model of the BoDyS is based on auditory evaluations of connected speech using 9 scales (traits) assessed by 4 elicitation methods. Analyses of the BoDyS' reliability and construct validity were performed to test this model, with the aim of gauging the auditory dimensions of speech impairment in dysarthria...
May 23, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28538937/-mother-child-relationship-and-associated-factors-hierarchical-analysis-of-the-population-base-in-a-brazilian-state-capital-brisa-study
#12
Milady Cutrim Vieira Cavalcante, Fernando Lamy, Ana Karina Teixeira da Cunha França, Zeni Carvalho Lamy
Several factors can interfere in the mother-child relationship. Studies about different maternal characteristics and this relationship are scarce; they mainly evaluate women with psychopathology and use simultaneous regression models with adjustment for multiple confounders. This study aimed to assess factors associated with losses in the mother-child relationship through a cohort of 3,215 mothers of children between 15 and 36 months of age. Losses in the mother-child relationship, assessed by the Postpartum Bonding Questionnaire, was the outcome variable and the explanatory variables were demographic, socioeconomic, reproductive health and mental health of mothers as well as the conditions of the birth of children...
May 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28538936/-factors-associated-with-cross-nursing
#13
Mariana Pujól von Seehausen, Maria Inês Couto de Oliveira, Cristiano Siqueira Boccolini
This article aims to estimate the prevalence and analyze the factors associated with cross-nursing. A cross-sectional study was conducted in 2013 with interviews with a representative sample of mothers of infants less than one-year-old (n' = 695) attended in nine primary health units in Rio de Janeiro, Brazil. Sociodemographic characteristics were studied; pregnancy, childbirth and primary care assistance; maternal habits and baby features. Adjusted prevalence ratios (PR) were obtained by Poisson Regression, retaining variables associated with the outcome in the final model (p ≤ 0...
May 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28538932/analysis-of-household-expenditure-on-healthcare-in-argentina-as-a-component-of-universal-health-coverage
#14
Roberto Ariel Abeldaño
The 2010 World Health Report of WHO established a conceptual framework for the analysis of the components of Universal Health Coverage; three dimensions were suggested: services coverage, financial coverage, and population coverage. Within this framework, health-related spending of argentine households for the year 2012-2013 are analyzed. The analysis was performed on data retrieved from the National Survey of Household Expenditure 2012-2013. Household healthcare expenditure indicators were built following Sherri's proposal (2012) and multivariate models were defined to identify determiners of household spending...
May 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28538930/dissatisfaction-with-the-dental-services-and-associated-factors-among-adults
#15
Luana Leal Roberto, Andréa Maria Eleutério de Barros Lima Martins, Alfredo Maurício Batista de Paula, Efigênia Ferreira E Ferreira, Desirée Sant' Ana Haikal
This study aimed to identify factors associated with dissatisfaction with dental services among adults. It analyzed 830 adult participants of an epidemiological survey of oral health. The dependent variable was dissatisfaction with the dental service, and the independent ones were selected according to the theoretical model set forth by Andersen and Davidson (1997). Estimates were corrected by the sample design effect, and Binary Logistic Regression was carried out. It was found that about 11% of adults were dissatisfied with the dental service...
May 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28538915/brazil-s-policy-on-healthcare-for-government-workers-players-paths-and-challenges
#16
Maria Inês Carsalade Martins, Simone Santos Oliveira, Elsa Thomé de Andrade, Maria Cristina Strauzz, Larisse Caroline Ferreira de Castro, Aline de Azambuja
This article aims to analyze the extent to which Brazil's public sector has made progress in institutionalizing an integral and participative model for the healthcare of government workers, based on the principles of universality, integrality and workers' participation. Based on documents produced by the Rio de Janeiro Permanent Forum on Workers' Health, the paper analyses the process of implantation of the Integrated Public Workers' Healthcare Sub-System (SIASS) in the municipality of Rio de Janeiro over the period 2009-2016, based on the historical institutionalism...
May 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28538913/challenges-for-the-formulation-implantation-and-implementation-of-a-national-health-surveillance-policy-in-brazil
#17
Raphael Mendonça Guimarães, Karina Cardoso Meira, Elisabete Pimenta Araújo Paz, Viviane Gomes Parreira Dutra, Carlos Eduardo Aguilera Campos
This article examines the evolution of health surveillance policies as actions, models and systems, as well as contributing to the debate about the constitution of the National Health Surveillance Policy (PNVS). The article discusses conceptual elements regarding the notion of health surveillance and its evolution in Brazil and a trajectory is provided in relation to the construction of care models, particularly after the creation of the Unified Health System (SUS). The possibility of using the framework of public policies based on evidence, and methods for analyzing health situations, such as spatial analysis and time series, are highlighted...
May 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28538871/what-do-cochrane-systematic-reviews-say-about-interventions-for-autism-spectrum-disorders
#18
Larissa Lyra, Luiz Eduardo Rizzo, Camila Sá Sunahara, Daniela Vianna Pachito, Carolina de Oliveira Cruz Latorraca, Ana Luiza Cabrera Martimbianco, Rachel Riera
CONTEXT AND OBJECTIVE: Autism spectrum disorders (ASDs) include autistic disorder, Asperger's disorder and pervasive developmental disorder. The manifestations of ASDs can have an important impact on learning and social functioning that may persist during adulthood. The aim here was to summarize the evidence from Cochrane systematic reviews on interventions for ASDs. DESIGN AND SETTING: Review of systematic reviews, conducted within the Discipline of Evidence-Based Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo...
March 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28538836/establishment-of-patient-derived-tumor-xenograft-pdtx-models-using-samples-from-ct-guided-percutaneous-biopsy
#19
Y-P Zhuang, Y-P Zhu, H-Y Wang, L Sun, J Zhang, Y-P Hao, L Wang
This study aimed to investigate the feasibility of the establishment of a human cancer xenograft model using samples from computed tomography (CT)-guided percutaneous biopsy. Fresh tumor tissues obtained from 10 cancer patients by CT-guided percutaneous biopsy were subcutaneously inoculated into NOD-Prkdcem26Il2rgem26Nju (NCG) mice to establish human patient-derived tumor xenograft (PDTX) models. The formation of first and second generation xenografts was observed, and tumor volume was recorded over time. Tumor tissue consistency between the PDTX model and primary tumors in patients was compared using H&E staining and immunohistochemistry...
May 18, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28538823/family-health-team-reports-of-conduct-on-child-hearing-loss
#20
Jullyane Florencio Pachêco da Silva, Cleide Fernandes Teixeira, Maria Luiza Lopes Timóteo de Lima, Fabiana de Oliveira Silva Sousa, Silvana Maria Sobral Griz
Purpose: To analyze the performance of family health teams toward the suspicion and identification of child hearing loss. Methods: This is a case study. Data were collected in three focus groups with three family health teams of a health district in the metropolitan area of Recife, Brazil. All data were transcribed and analyzed based on the interview analysis model of condensation of meanings. Results: The family health professionals investigated made use of some resources to assess child reaction to sound stimuli, but they were mostly unaware of risk indicators for hearing loss and presented doubts about conducting referrals...
May 15, 2017: CoDAS
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