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https://www.readbyqxmd.com/read/27921169/drying-kinetics-of-deformable-and-cracking-nano-porous-gels
#1
J Thiery, E Keita, S Rodts, D Courtier Murias, T Kodger, A Pegoraro, P Coussot
The desiccation of porous materials encompasses a wide range of technological and industrial processes and is acutely sensitive to the hierarchical structure of the porous materials resulting in complex dynamics which are challenging to unravel. Macroscopic observations of the surface and geometry of model colloidal gels during desiccation under controlled air flow highlight the role of crack formation in drying. The density of cracks and their rate of appearance depend on the initial solid fraction of the gels and their adherence to the substrate...
December 2016: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/27920582/surgeons-early-experience-with-the-acessa%C3%A2-procedure-gaining-proficiency-with-new-technology
#2
Kelli M Braun, Mark Sheridan, Erin Z Latif, Lexy Regush, Anet Maksymowicz, Laura Weins, Mohamed A Bedaiwy, Nerissa Tyson, Marilyn J Davidson, Barry H Sanders
PURPOSE: Successful adoption of a new surgical procedure varies among practicing surgeons, and skill acquisition depends on the surgeon's innate ability, the complexity of the technique, and training. We report intraoperative and near-term postoperative outcomes from the Acessa procedure conducted by minimally invasive gynecologic surgeons new to Acessa, and report the surgeons' experiences during the training period. PATIENTS AND METHODS: The study was designed as a postmarket, prospective, single-arm, multicenter analysis of operative and early postoperative outcomes after proctored surgical training with the Acessa device and procedure (laparoscopic ultrasound-guided radiofrequency volumetric thermal ablation of symptomatic fibroids) in premenopausal, menstruating women as conducted in community and university hospitals in the USA and Canada...
2016: International Journal of Women's Health
https://www.readbyqxmd.com/read/27920564/prioritizing-health-system-and-disease-burden-factors-an-evaluation-of-the-net-benefit-of-transferring-health-technology-interventions-to-different-districts-in-zimbabwe
#3
Shepherd Shamu, Simbarashe Rusakaniko, Charles Hongoro
INTRODUCTION: Health-care technologies (HCTs) play an important role in any country's health-care system. Zimbabwe's health-care system uses a lot of HCTs developed in other countries. However, a number of local factors have affected the absorption and use of these technologies. We therefore set out to test the hypothesis that the net benefit regression framework (NBRF) could be a helpful benefit testing model that enables assessment of intra-national variables in HCT transfer. METHOD: We used an NBRF model to assess the benefits of transferring cost-effective technologies to different jurisdictions...
2016: ClinicoEconomics and Outcomes Research: CEOR
https://www.readbyqxmd.com/read/27920333/accuracy-and-reproducibility-using-patient-specific-instrumentation-in-total-ankle-arthroplasty
#4
Justin Daigre, Gregory Berlet, Bryan Van Dyke, Kyle S Peterson, Robert Santrock
BACKGROUND: Implant survivorship is dependent on accuracy of implantation and successful soft tissue balancing. System instrumentation for total ankle arthroplasty implantation has a key influence on surgeon accuracy and reproducibility. The purpose of this study was to determine the accuracy and reproducibility of implant position with patient-specific guides for total ankle arthroplasty across multiple surgeons at multiple facilities. METHODS: This retrospective, multicenter study included 44 patients who received a total ankle implant (INBONE II Total Ankle System; Wright Medical Technology, Memphis, TN) using PROPHECY patient-specific guides from January 2012 to December 2014...
December 5, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27919393/business-analysis-for-a-sustainable-multi-stakeholder-ecosystem-for-leveraging-the-electronic-health-records-for-clinical-research-ehr4cr-platform-in-europe
#5
Danielle Dupont, Ariel Beresniak, Mats Sundgren, Andreas Schmidt, John Ainsworth, Pascal Coorevits, Dipak Kalra, Marc Dewispelaere, Georges De Moor
INTRODUCTION: The Electronic Health Records for Clinical Research (EHR4CR) technological platform has been developed to enable the trustworthy reuse of hospital electronic health records data for clinical research. The EHR4CR platform can enhance and speed up clinical research scenarios: protocol feasibility assessment, patient identification for recruitment in clinical trials, and clinical data exchange, including for reporting serious adverse events. Our objective was to seed a multi-stakeholder ecosystem to enable the scalable exploitation of the EHR4CR platform in Europe, and to assess its economic sustainability...
January 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/27919301/the-integration-of-epigenetics-and-genetics-in-nutrition-research-for-cvd-risk-factors
#6
Yiyi Ma, Jose M Ordovas
There is increasing evidence documenting gene-by-environment (G × E) interactions for CVD related traits. However, the underlying mechanisms are still unclear. DNA methylation may represent one of such potential mechanisms. The objective of this review paper is to summarise the current evidence supporting the interplay among DNA methylation, genetic variants, and environmental factors, specifically (1) the association between SNP and DNA methylation; (2) the role that DNA methylation plays in G × E interactions...
December 6, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27918565/centimetre-scale-micropore-alignment-in-oriented-polycrystalline-metal-organic-framework-films-via-heteroepitaxial-growth
#7
Paolo Falcaro, Kenji Okada, Takaaki Hara, Ken Ikigaki, Yasuaki Tokudome, Aaron W Thornton, Anita J Hill, Timothy Williams, Christian Doonan, Masahide Takahashi
The fabrication of oriented, crystalline films of metal-organic frameworks (MOFs) is a critical step toward their application to advanced technologies such as optics, microelectronics, microfluidics and sensing. However, the direct synthesis of MOF films with controlled crystalline orientation remains a significant challenge. Here we report a one-step approach, carried out under mild conditions, that exploits heteroepitaxial growth for the rapid fabrication of oriented polycrystalline MOF films on the centimetre scale...
December 5, 2016: Nature Materials
https://www.readbyqxmd.com/read/27918020/effects-of-ovalbumin-protein-nanoparticle-vaccine-size-and-coating-on-dendritic-cell-processing
#8
Timothy Z Chang, Samantha S Stadmiller, Erika Staskevicius, Julie A Champion
Nanoparticle vaccine delivery platforms are a promising technology for enhancing vaccine immunogenicity. Protein nanoparticles (PNPs), made entirely from antigen, have been shown to induce protective immune responses against influenza. However, the fundamental mechanisms by which PNPs enhance component protein immunogenicity are not understood. Here, we investigate the role of size and coating of model ovalbumin (OVA) PNPs on particle uptake and trafficking, as well as on inflammation and maturation factor expression in dendritic cells (DCs) in vitro...
December 5, 2016: Biomaterials Science
https://www.readbyqxmd.com/read/27917970/enhancing-the-economic-viability-of-pastoralism-the-need-to-balance-interventions
#9
H Rueff, I Rahim
Extensive mobile pastoral systems do not follow conventional marketing optimisation models, since they must deal with the factors of mobility, erratic environments, dependency on natural resources, seasonality, and distance to markets. While pastoralist systems contribute substantially to national economies, government investment to support pastoralism remains limited or non-existent. Pastoralists are becoming increasingly integrated into larger market systems and therefore need investment and specially adapted policies to supply a growing demand for livestock products and to support their livelihoods...
November 2016: Revue Scientifique et Technique
https://www.readbyqxmd.com/read/27917946/basigin-can-be-a-therapeutic-target-to-restore-the-retinal-vascular-barrier-function-in-the-mouse-model-of-diabetic-retinopathy
#10
Mitsuru Arima, Dan Cui, Tokuhiro Kimura, Koh-Hei Sonoda, Tatsuro Ishibashi, Satoshi Matsuda, Eiji Ikeda
Despite the advance in medical technology, diabetic retinopathy (DR) is still an intractable disease which leads to the damage of retinal cells and finally the visual loss. Impairment of retinal vascular barrier triggered by an admixture of multiple inflammatory cytokines is a core of pathophysiology of DR. Therefore, the molecules involved commonly in multiple cytokines-induced impairment of vascular barrier would be the targets of curative treatment of DR. Here, we demonstrate that basigin, a transmembrane molecule expressed in neural barrier-forming endothelial cells, is the molecule essential for vascular barrier impairment which is shared by various triggers including VEGF, TNFα and IL-1β...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917777/the-identification-and-treatment-of-women-with-hyperglycaemia-in-pregnancy-an-analysis-of-individual-participant-data-systematic-reviews-meta-analyses-and-an-economic-evaluation
#11
Diane Farrar, Mark Simmonds, Susan Griffin, Ana Duarte, Debbie A Lawlor, Mark Sculpher, Lesley Fairley, Su Golder, Derek Tuffnell, Martin Bland, Fidelma Dunne, Donald Whitelaw, John Wright, Trevor A Sheldon
BACKGROUND: Gestational diabetes mellitus (GDM) is associated with a higher risk of important adverse outcomes. Practice varies and the best strategy for identifying and treating GDM is unclear. AIM: To estimate the clinical effectiveness and cost-effectiveness of strategies for identifying and treating women with GDM. METHODS: We analysed individual participant data (IPD) from birth cohorts and conducted systematic reviews to estimate the association of maternal glucose levels with adverse perinatal outcomes; GDM prevalence; maternal characteristics/risk factors for GDM; and the effectiveness and costs of treatments...
November 2016: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/27917703/principles-of-the-kenzan-method-for-robotic-cell-spheroid-based-3d-bioprinting
#12
Nicanor I Moldovan, Narutoshi Hibino, Koichi Nakayama
Bioprinting is a technology with the prospect to change the way many diseases are treated, by replacing the damaged tissues with live, de novo created bio-similar constructs. However, after more than a decade of incubation and many proofs-of-concept, the field is still in its infancy. The current stagnation is the consequence of its early success: the first bioprinters, and most of those which followed, were modified versions of the 3D printers used in additive manufacturing, redesigned for layer-by-layer dispersion of biomaterials...
December 4, 2016: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/27917508/estimating-personalized-diagnostic-rules-depending-on-individualized-characteristics
#13
Ying Liu, Yuanjia Wang, Chaorui Huang, Donglin Zeng
There is an increasing demand for personalization of disease screening based on assessment of patient risk and other characteristics. For example, in breast cancer screening, advanced imaging technologies have made it possible to move away from 'one-size-fits-all' screening guidelines to targeted risk-based screening for those who are in need. Because diagnostic performance of various imaging modalities may vary across subjects, applying the most accurate modality to the patients who would benefit the most requires personalized strategy...
December 4, 2016: Statistics in Medicine
https://www.readbyqxmd.com/read/27915185/anti-inflammatory-analgesic-and-anti-tumor-properties-of-gold-nanoparticles
#14
Raimundo Fernandes de Araújo, Aurigena Antunes de Araújo, Jonas Bispo Pessoa, Franscisco Paulo Freire Neto, Gisele Ribeiro da Silva, Ana Luiza C S Leitão Oliveira, Thaís Gomes de Carvalho, Heloiza F O Silva, Mateus Eugênio, Celso Sant'Anna, Luiz H S Gasparotto
BACKGROUND: Gold nanoparticles (GNPs) are regarded as potential platforms for drug delivery. However, their interaction with live organisms must be understood prior to their utilization as drug carriers. The present study reports the anti-inflammatory, analgesic and anti-tumor effects of GNPs. The biodistribution of GNPs and their effect on various tissues have also been studied. METHODS: GNPs were synthesized through an environmentally friendly route and characterized with TEM and UV-vis...
September 21, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27915037/quantification-of-pea-enation-mosaic-virus-1-and-2-during-infection-of-pisum-sativum-by-one-step-real-time-rt-pcr
#15
Juliette Doumayrou, Melissa Sheber, Bryony C Bonning, W Allen Miller
Pea enation mosaic virus 1 (PEMV1) and Pea enation mosaic virus 2 (PEMV2) are two viruses in an obligate symbiosis that cause pea enation mosaic disease mainly in plants in the Fabaceae family. This virus system is a valuable model to investigate plant virus replication, movement and vector transmission. Thus, here we describe growth conditions, virus detection methods, and virus accumulation behavior. To measure the accumulation and movement of PEMV1 and PEMV2 in plants during the course of infection, we developed a quantitative real-time one-step reverse transcription PCR procedure using the SYBR-green(®) technology...
November 30, 2016: Journal of Virological Methods
https://www.readbyqxmd.com/read/27914006/accurate-myocardial-blood-flow-measurements-quality-from-start-to-finish-is-key-to-success
#16
EDITORIAL
James Case
Overall repeatability and accuracy of myocardial blood flow measurements depend on the quality of the image data, the proper use of the quantitative software, and the training of clinical staff. Unlike most imaging tests, absolute blood flow measurements have the potential to provide accurate information beyond what is seen visually. This additive information has been shown to help identify multivessel disease, balanced ischemia, true normal studies, and quality control problems that may not be visible in the relative perfusion pattern...
December 2, 2016: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/27912827/new-targets-in-non-small-cell-lung-cancer
#17
REVIEW
Soo J Park, Soham More, Ayesha Murtuza, Brian D Woodward, Hatim Husain
With the implementation of genomic technologies into clinical practice, we have examples of the predictive benefit of targeted therapy for oncogene-addicted cancer and identified molecular dependencies in non-small cell lung cancer. The clinical success of tyrosine kinase inhibitors against epidermal growth factor receptor and anaplastic lymphoma kinase activation has shifted treatment emphasize the separation of subsets of lung cancer and genotype-directed therapy. Advances have validated oncogenic driver genes and led to the development of targeted agents...
February 2017: Hematology/oncology Clinics of North America
https://www.readbyqxmd.com/read/27911810/in-vivo-bioluminescence-imaging-reveals-copper-deficiency-in-a-murine-model-of-nonalcoholic-fatty-liver-disease
#18
Marie C Heffern, Hyo Min Park, Ho Yu Au-Yeung, Genevieve C Van de Bittner, Cheri M Ackerman, Andreas Stahl, Christopher J Chang
Copper is a required metal nutrient for life, but global or local alterations in its homeostasis are linked to diseases spanning genetic and metabolic disorders to cancer and neurodegeneration. Technologies that enable longitudinal in vivo monitoring of dynamic copper pools can help meet the need to study the complex interplay between copper status, health, and disease in the same living organism over time. Here, we present the synthesis, characterization, and in vivo imaging applications of Copper-Caged Luciferin-1 (CCL-1), a bioluminescent reporter for tissue-specific copper visualization in living animals...
November 29, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27910847/efficiency-limits-for-photoelectrochemical-water-splitting
#19
Katherine T Fountaine, Hans Joachim Lewerenz, Harry A Atwater
Theoretical limiting efficiencies have a critical role in determining technological viability and expectations for device prototypes, as evidenced by the photovoltaics community's focus on detailed balance. However, due to their multicomponent nature, photoelectrochemical devices do not have an equivalent analogue to detailed balance, and reported theoretical efficiency limits vary depending on the assumptions made. Here we introduce a unified framework for photoelectrochemical device performance through which all previous limiting efficiencies can be understood and contextualized...
December 2, 2016: Nature Communications
https://www.readbyqxmd.com/read/27910485/calibration-of-scintillation-light-filters-for-neutron-time-of-flight-spectrometers-at-the-national-ignition-facility
#20
D B Sayre, F Barbosa, J A Caggiano, V N DiPuccio, M J Eckart, G P Grim, E P Hartouni, R Hatarik, F A Weber
Sixty-four neutral density filters constructed of metal plates with 88 apertures of varying diameter have been radiographed with a soft x-ray source and CCD camera at National Security Technologies, Livermore. An analysis of the radiographs fits the radial dependence of the apertures' image intensities to sigmoid functions, which can describe the rapidly decreasing intensity towards the apertures' edges. The fitted image intensities determine the relative attenuation value of each filter. Absolute attenuation values of several imaged filters, measured in situ during calibration experiments, normalize the relative quantities which are now used in analyses of neutron spectrometer data at the National Ignition Facility...
November 2016: Review of Scientific Instruments
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