Title stringlengths 0 905 | Abstract stringlengths 0 11.3k | Container_Title stringlengths 0 126 | Subject listlengths 1 13 |
|---|---|---|---|
The Easter Festival--A Study in Cultural Change | [
"Sociology and Political Science"
] | ||
Distance learning’s explosion on the internet | [
"Education"
] | ||
Diffusing-vortex numerical scheme for solving incompressible Navier-Stokes equations | [
"Computer Science Applications",
"Physics and Astronomy (miscellaneous)",
"Applied Mathematics",
"Computational Mathematics",
"Modeling and Simulation",
"Numerical Analysis"
] | ||
Computer literacy and use of electronic information sources by academics | This study investigates the relationship between computer literacy of academic staff and their use of electronic information sources. The impact of other factors such as age, gender and educational background on the use of electronic information sources is also investigated. A statistically significant relationship is found between computer literacy and the use of electronic information sources and services. The study reveals that computer literature academics use electronic information sources more frequently. Similarly, a significant relationship is noted between the age of academics and their use of electronic information sources. | Asian Libraries | [
"Community and Home Care"
] |
Building Comprehensive, Multifaceted, and Integrated Approaches to Address Barriers to Student Learning | [
"Management of Technology and Innovation",
"Developmental and Educational Psychology",
"Education"
] | ||
HIV pathogenesis: the first cut is the deepest | [
"Immunology",
"Immunology and Allergy"
] | ||
Influence of storage conditions and extraction methods on the quantity and quality of circulating cell-free DNA (ccfDNA): the SPIDIA-DNAplas External Quality Assessment experience | AbstractCirculating cell-free DNA (ccfDNA) has been confirmed as a useful biomarker in cancer and pre-natal clinical practice. One of the main critical points in using ccfDNA is a lack of standardisation for sample processing methods, storage conditions, procedures for extraction, and quantification that can affect ccfDNA quality and quantity. We report the results obtained from the SPIDIA-DNAplas, one of the EU SPIDIA (Standardisation and improvement of generic pre-analytical tools and procedures for in vitro diagnostics) subprojects based on the implementation of an External Quality Assessment scheme for the evaluation of the influence of the pre-analytical phase on ccfDNA. This is the first reported quality control scheme targeting ccfDNA for pre-analytical phase studies.Fifty-six laboratories throughout Europe were recruited. The participating laboratories received the same plasma sample and extracted ccfDNA by using their own procedures, at defined plasma storage conditions, and sent the isolated ccfDNA to the SPIDIA facility for analyses. Laboratory performance was evaluated by using specific quality parameters such as ccfDNA integrity (by multiplex PCR) and yield (by qPCR).The analysis of the ccfDNA extracted by the laboratories showed that most of them (53 of 56) were able to recover ccfDNA but only 12.5% recovered non-fragmented ccfDNA. Extraction methods specifically designed for ccfDNA preserved the integrity profile.The evidence-based results of the SPIDIA-DNAplas EQA have been proposed as a basis for the development of a Technical Specification by the European Committee for standardisation (CEN). | Clinical Chemistry and Laboratory Medicine (CCLM) | [
"Biochemistry (medical)",
"Clinical Biochemistry"
] |
Languages With and Without Objects | Among the theoretical frameworks which consider grammatical relations to be a possible but not necessary level of clausal organization, the approach to the object relation espoused in Simon Dik's (1978, 198g, 1997) Functional Grammar is the most restrictive. Unlike various other models of grammar, only one object relation is recognized and its presence in a language is conditional on the existence of a productive dative-shift opposition relating predications depicting the same states of affairs, as in the case of the English The teacher gave the picture to the child and The teacher gave the child a picture. Taking the existence of pairs of clauses such as these as a diagnostic of the object relation heavily reduces the number of languages manifesting an object relation, so the presence of an object relation emerges as a potentially interesting typological parameter. But do the languages manifesting an object relation, in this restrictive sense of the term, have any properties in common other than the object relation? Little attention has been given to this issue either by Functional Grammarians or other linguists who adopt a similar view of the object relation. The present paper seeks to redress this situation by exploring the cross-linguistic applicability of the object relation, as defined in FG, in an extensive sample of genetically and geographically stratified languages. It examines the typological characteristics of the languages with objects in the FG sense of the term and establishes the typological profile most likely leading to the presence of an object relation. | [
"Linguistics and Language"
] | |
Importancia de la Innovación en el contexto académico, tecnológico y en el desarrollo regional | En este manuscrito se presentan una serie de apartados en los que la innovación demuestra ser el motorpara generar el progreso y la calidad de vida de las naciones más desarrolladas y de aquellas que están envías de desarrollo. En un primer apartado, se explicará cómo la innovación impacta a diferentes nacionesdel mundo. En un segundo apartado, se abordará el desarrollo de la tecnología como instrumento para elcrecimiento de la economía a través de los datos de posicionamiento móvil. En un tercer apartado, se tocará la promoción de microempresas para el desarrollo económico regional. En un cuarto apartado, se desarrollará una temática concerniente a la inversión extranjera como herramienta del desarrollo regional.En un quinto apartado, se expondrá lo relativo al fenómeno de la globalización como reemplazo de la economía tradicional. En un sexto apartado, se elucidará el papel que tienen las redes sociales en el contextode desarrollo global. En un séptimo apartado, se presentarán los efectos de la presión global sobre salariosy empleo. En un octavo apartado, se exhibirán las consecuencias del trabajo infantil y género. En un noveno apartado, se tocarán fenómenos económicos y sociales de suma relevancia como lo son la globalización y migración. En un décimo apartado, se cerrará el capítulo con las conclusiones, las cuales presentanlas implicaciones y limitaciones de las políticas nacionales e internacionales que atañen a la innovación. innovación; tecnología; contexto; globalización; desarrollo | [
"Energy Engineering and Power Technology",
"Fuel Technology"
] | |
Quality management of safety and risk analysis | [
"Public Health, Environmental and Occupational Health",
"Safety Research",
"Safety, Risk, Reliability and Quality"
] | ||
Method of Raising the Common Logarithm of Any Number Immediately | [
"Philosophy"
] | ||
Specific antibody secreting cell response to bacterial antigens in children with Kawasaki syndrome and healthy controls | [
"Cardiology and Cardiovascular Medicine",
"Pediatrics, Perinatology and Child Health"
] | ||
Heart Rate Increases during Power Soccer Competition among Individuals with Disabilities. | [
"Physical Therapy, Sports Therapy and Rehabilitation",
"Orthopedics and Sports Medicine"
] | ||
Reviewing and Updating the 12 Principles of Animation | This article suggests a discussion on the reconfiguration of the 12 principles of animation and their necessary refinement for contemporary animation to address the growing complexity and expansion of the animation industry. The expansion of the 12 principles of animation into the various animation techniques requires a consideration of their development, which, in the 1930s and 1940s was sufficient for animation’s hand-drawn animation needs; since then, the principles have proven themselves accurate and incredibly helpful for subsequent decades. Nevertheless, this article indicates that a refinement of the principles is required to accommodate a broader range of animation techniques. The great advantage of the 12 principles of animation is their simplicity and logic; however, they do not apply in their entirety (as the full set of 12) to hand-drawn digital animation, stop-motion animation, experimental or digitally animated media. Therefore, this article explores the initial 12 principles with additions and variations suggested by artists and scholars over the last 30 years, and concludes with a reorganization and expansion of most of the principles’ content, a breakdown into sub points and an updated terminology to reconceptualize the 12 principles of animation for all animation techniques. | [
"Visual Arts and Performing Arts"
] | |
CytroCell: Valued Cellulose from Citrus Processing Waste | Isolating cellulose from citrus processing waste without employing chemicals has so far been an unfulfilled goal of chemical research applied to the valorization of a widely available biowaste, annually totaling >100 million tonnes. We have applied hydrodynamic cavitation using a Venturi-type reactor for the extraction of all valued bioproducts of industrial citrus processing waste in water only, directly on a semi-industrial scale. After reporting the discovery of IntegroPectin in the soluble fraction of the aqueous extract, we now report the isolation of a cellulosic material in the water-insoluble fraction of cavitated lemon and grapefruit processing waste. Named “CytroCell”, the material is cellulose of low crystallinity, high porosity, good water holding capacity and good dispersibility in water. These properties open the route to mass-scale production of a useful functional material from a cheap and abundant biowaste. | [
"Chemistry (miscellaneous)",
"Analytical Chemistry",
"Organic Chemistry",
"Physical and Theoretical Chemistry",
"Molecular Medicine",
"Drug Discovery",
"Pharmaceutical Science"
] | |
Mathematical modeling and computer simulation of fire phenomena | [
"Fluid Flow and Transfer Processes",
"Condensed Matter Physics",
"Computational Mechanics"
] | ||
Costs, Benefits, and Farmer Adoption of Agroforestry: Project Experience in Central America and the Caribbean. Edited by D. Current, E. Lutz and S. Scherr. Washington DC: The World Bank (1995), pp. 212, US$13.95. ISBN 0-2813-3482-X. | [
"Agronomy and Crop Science"
] | ||
Transnational Chinese: Fujianese Migrants in Europe. By Frank N. Pieke, Pál Nyíri, Mette Thunø, and Antonella Oeccagno. Stanford, Calif.: Stanford University Press. Pp. xi+252. | [
"Sociology and Political Science"
] | ||
Imaging of peptide adsorption to microfluidic channels in a plastic compact disc using a positron emitting radionuclide | [
"Biomedical Engineering",
"Biochemistry",
"Bioengineering"
] | ||
Herausgeberwechsel in der Romanistischen Abteilung | [
"Law",
"History"
] | ||
The 7472insC mtDNA mutation impairs 5′ and 3′ processing of tRNASer(UCN) | Biochemical and Biophysical Research Communications | [
"Cell Biology",
"Molecular Biology",
"Biochemistry",
"Biophysics"
] | |
Exact Analytical Model of Age of Information in Multi-Source Status Update Systems With Per-Source Queueing | [
"Computer Networks and Communications",
"Computer Science Applications",
"Hardware and Architecture",
"Information Systems",
"Signal Processing"
] | ||
Application of PIXE method for determination of trace elements in human tissues. | [
"Analytical Chemistry"
] | ||
WITHDRAWN | [
"Rehabilitation",
"Physical Therapy, Sports Therapy and Rehabilitation"
] | ||
Ueber einen Fall von tödtlicher pemphigusartiger Dermatitis mit Veränderungen im Nervensystem | Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin | [
"Cell Biology",
"Molecular Biology",
"Pathology and Forensic Medicine"
] | |
Trends and cycles in small open economies: making the case for a general equilibrium approach | Journal of Economic Dynamics and Control | [
"Applied Mathematics",
"Control and Optimization",
"Economics and Econometrics"
] | |
Regulation of GlnK activity: modification, membrane sequestration and proteolysis as regulatory principles in the network of nitrogen control in Corynebacterium glutamicum | Molecular Microbiology | [
"Molecular Biology",
"Microbiology"
] | |
Fractures pathologiques chez l’hémodialysé | Néphrologie & Thérapeutique | [
"Nephrology"
] | |
Quantitation of Type I to type III collagen ratios in small samples of human tendon, blood vessels, and atherosclerotic plaque | [
"Cell Biology",
"Molecular Biology",
"Biochemistry",
"Biophysics"
] | ||
Supercritical fluid extraction of cynaropicrin and 20-hydroxyecdysone fromLeuzea carthamoides DC | [
"Filtration and Separation",
"Analytical Chemistry"
] | ||
Risk assessment of engineered nanoparticles and other contaminants in terrestrial plants | [
"Health, Toxicology and Mutagenesis",
"Public Health, Environmental and Occupational Health",
"Environmental Chemistry"
] | ||
Forgotten feminist found | [
"History"
] | ||
Duplex‐Guided Refolding into Novel G‐Quadruplex (3+1) Hybrid Conformations | [
"Catalysis"
] | ||
Mise en place d’un programme d’éducation thérapeutique (ETP) dans l’arthrose des mains : évaluation du vécu et des besoins des patients par méthodologie qualitative | Revue du Rhumatisme | [
"Rheumatology"
] | |
Diseases and drugs but not food decrease ketoconazole ‘bioavailability’ [letter] | [
"Pharmacology (medical)",
"Pharmacology"
] | ||
Regulation of neurite outgrowth from differentiated human neuroepithelial cells: a comparison of the activities of prothrombin and thrombin | The mechanism by which thrombin and prothrombin control neurite retraction was studied in Ad12E1HER10 human neuroepithelial cells. Morphological changes in differentiated cells were apparent within minutes of the addition of very low concentrations of thrombin (3 pM). Higher concentrations (2 nM) of prothrombin were required to elicit a similar response. Doses of thrombin and prothrombin sufficient to cause neurite retraction stimulated protein tyrosine kinase activity. Protein tyrosine kinase activation also correlated positively with thrombin- and prothrombin-induced phosphoinositide 3-kinase activation and InsP6 dephosphorylation. However, thrombin-stimulated Ins(1,4,5)P3 generation and intracellular Ca2+ mobilization only occurred at concentrations in excess of those needed to induce retraction. No fluctuations in Ins(1,4,5)P3 were detected after stimulation with prothrombin, and no rapid synchronized release of Ca2+ was observed, even at very high concentrations. Prothrombin did, however, cause small oscillations in the intracellular Ca2+ concentration, similar to those produced by low concentrations of thrombin, after approximately 30 min. We conclude that prothrombin- and thrombin-induced neurite retractions are not dependent on PtdIns(4,5)P2 and Ca2+ mobilization, but are more probably mediated through an effector mechanism involving protein tyrosine kinase activation. No intracellular Ca2+ mobilization, protein tyrosine kinase activity or neurite retraction was observed after treatment of cells with proteolytically inactive mutant thrombin (S205-->A). Prothrombin-mediated intracellular Ca2+ mobilization and neurite retraction were inhibited by hirudin, which was shown to interact with thrombin but not prothrombin. It is concluded that cleavage of prothrombin to thrombin is a necessary prerequisite for biological activity on differentiated Ad12E1HER10 cells and that differences in agonist concentration are capable of coupling the thrombin receptor to different pathways within the cell. | [
"Cell Biology",
"Molecular Biology",
"Biochemistry"
] | |
Glioblastomas are composed of genetically divergent clones with distinct tumourigenic potential and variable stem cell-associated phenotypes | Acta Neuropathologica | [
"Cellular and Molecular Neuroscience",
"Neurology (clinical)",
"Pathology and Forensic Medicine"
] | |
Technical Report: The Diversity of Infrared Programs at the NSLS | Synchrotron Radiation News | [
"Nuclear and High Energy Physics",
"Atomic and Molecular Physics, and Optics"
] | |
Prière de toucher! | [
"Communication",
"Cultural Studies"
] | ||
Where are all the crinoids? An enigma of the Lower Carboniferous (Mississippian) White Peak of midland England | Geology Today | [
"Paleontology",
"Stratigraphy",
"Earth-Surface Processes",
"Geology"
] | |
π-Electron Ring-Current Effects in Multiple Adducts of3He@C60 and3He@C70: A3He NMR Study | [
"Catalysis",
"Organic Chemistry"
] | ||
EM Laboratories, Inc. | [
"Analytical Chemistry"
] | ||
A novel dipeptidyl aminopeptidase in rat brain membranes. Its isolation, purification, and characterization. | [
"Cell Biology",
"Molecular Biology",
"Biochemistry"
] | ||
Medium Ævum | [
"Literature and Literary Theory",
"Linguistics and Language",
"Language and Linguistics"
] | ||
Gallbladder Ablation: Need for a Better Model | [
"Radiology, Nuclear Medicine and Imaging"
] | ||
Acute intramural abscess of the pyloric antrum–localized phlegmon | Abstract A case of acute ‘localized’ phlegmonous gastritis is described. The predominant clinical features were persistent abdominal pain and a tender mass in the epigastrium. Complete recovery followed partial gastric resection. | [
"Surgery"
] | |
An essential role of Pak1 phosphorylation of SHARP in Notch signaling | [
"Cancer Research",
"Genetics",
"Molecular Biology"
] | ||
Hematopoietic Stem Cell Transplantation for Hematologic Malignancies in Older Adults: Geriatric Principles in the Transplant Clinic | [
"Oncology"
] | ||
The Cosmic Common Good: Religious Grounds for Ecological Ethics By Daniel P. Scheid. Oxford: Oxford University Press, 2016. Pp. xiv + 248. Cloth, $29.95. | Religious Studies Review | [
"Religious Studies"
] | |
Adaptive HARQ Transmission of Polar Codes with a Common Information Set | [
"Applied Mathematics",
"Electrical and Electronic Engineering",
"Computer Graphics and Computer-Aided Design",
"Signal Processing"
] | ||
Therapeutic Problems in Pregnancy | [
"Public Health, Environmental and Occupational Health"
] | ||
Factors That Contribute to the Likeliness of Academic Recovery | Institutions of higher education invest a lot of resources into supporting and retaining students, and most colleges and universities offer systems of support for students who struggle academically in the form of support programs for students on academic probation. This study aimed to determine the demographic factors that potentially contribute to an individual’s likeliness to academically recover from academic probation, as well as the likeliness that they will be retained to the semester following being placed on academic probation. The students sample included in this analysis were freshman students on academic probation at five institutions within a state system of higher education. The study reviewed three years’ worth of archival data on probation students’ academic performance at these five participating institutions. | [
"Education"
] | |
When are two stents needed? Which technique is the best? How to perform? | [
"Cardiology and Cardiovascular Medicine"
] | ||
Modeling the disappearance of equatorial plasma bubble by nighttime medium-scale traveling ionospheric disturbances | [
"Earth and Planetary Sciences (miscellaneous)",
"Atmospheric Science",
"Oceanography"
] | ||
A review of the aetiology of facial fractures seen at a major trauma centre | [
"Otorhinolaryngology",
"Oral Surgery",
"Surgery"
] | ||
Asymmetric oxidation of sulfides by cyclohexanone monooxygenase | Tetrahedron: Asymmetry | [
"Inorganic Chemistry",
"Organic Chemistry",
"Physical and Theoretical Chemistry",
"Catalysis"
] | |
Using language workbenches and domain-specific languages for safety-critical software development | [
"Modeling and Simulation",
"Software"
] | ||
Knowledge sharing in interest online communities: A comparison of posters and lurkers | [
"Human-Computer Interaction",
"Arts and Humanities (miscellaneous)"
] | ||
Ski Geography of New England | [
"Economics and Econometrics",
"Geography, Planning and Development"
] | ||
Tribute to Mitchell B. Max, 1949-2008 | The Journal of Pain | [
"Anesthesiology and Pain Medicine",
"Neurology (clinical)",
"Neurology"
] | |
Using molecular tethering to analyze the role of nuclear compartmentalization in the regulation of mammalian gene activity | [
"Molecular Biology"
] | ||
Middle cerebral artery stenosis—a neglected problem? | [
"Neurology (clinical)",
"Surgery"
] | ||
Breast-conserving surgery and tumour bed positivity in patients with breast cancer | [
"Surgery"
] | ||
Kurzreferate | [
"Biochemistry (medical)",
"Medical Laboratory Technology",
"Clinical Biochemistry"
] | ||
A neutral hydrogen study of the barred spiral galaxy NGC 3319 | Monthly Notices of the Royal Astronomical Society | [
"Space and Planetary Science",
"Astronomy and Astrophysics"
] | |
Electrically controlled release of 5-fluorouracil from conductive gelatin methacryloyl-based hydrogels | [
"Materials Chemistry",
"Polymers and Plastics",
"Surfaces, Coatings and Films"
] | ||
Assessment of Effectiveness of the Imidacloprid and Azadirachtin on the Black Watermelon Bug | International Journal of Zoological Research | [
"Animal Science and Zoology"
] | |
Unknown case 2: neonatal candidal pyonephrosis with an associated iatrogenic perirenal collection. | [
"Radiology, Nuclear Medicine and Imaging",
"Radiological and Ultrasound Technology"
] | ||
The Impact of Diabetes Mellitus on Clinical Outcomes after Percutaneous Coronary Intervention with Different Stent Sizes | Background: This study aimed to investigate the possible relationship between different stent sizes and clinical outcomes after percutaneous coronary intervention (PCI) in patients with diabetes treated with drug-eluting stents (DESs) and dual antiplatelet therapy (DAPT). Methods: Patients with stable coronary artery disease undergoing elective PCI with the DES were entered into a retrospective cohort between 2003 and 2019. Major adverse cardiac events (MACE), defined as the combined endpoint of revascularization, myocardial infarction, and cardiovascular death, were recorded. The participants were categorized according to the stent size: 27 mm for length and 3 mm for diameter. DAPT (aspirin and clopidogrel) was used for at least 2 years for diabetics and 1 year for nondiabetics. The median duration of follow-up was 74.7 months. Results: Out of 1630 participants, 29.0% had diabetes. The diabetics constituted 37.8% of those with MACE. The mean diameter of the stents in the diabetics and nondiabetics was 2.81±0.29 mm and 2.90±0.35 mm, respectively (P>0.05). The mean stent length was 19.48±7.58 mm and 18.92±6.64 mm in the diabetics and nondiabetics, respectively (P>0.05). After adjustments for confounding variables, MACE was not significantly different between the patients with and without diabetes. Although MACE incidence was not affected by stent dimensions in the patients with diabetes, the nondiabetic patients implanted with a stent length exceeding 27 mm experienced MACE less frequently. Conclusion: Diabetes did not influence MACE in our population. Additionally, stents of different sizes were not associated with MACE in patients with diabetes. We propose that using the DES supplemented by long-term DAPT and tight control of glycemic status after PCI could decrease the adverse consequences of diabetes. | [
"Cardiology and Cardiovascular Medicine"
] | |
Anticoagulation in Patients with Aortic Stenosis and Atrial Fibrillation | [
"Cardiology and Cardiovascular Medicine"
] | ||
Loading rate effect on inelastic deformation in a Zr-based bulk metallic glass | Materials Science and Engineering: A | [
"Mechanical Engineering",
"Mechanics of Materials",
"Condensed Matter Physics"
] | |
Post-treatment imaging—a desperate need for solid evidence | [
"Urology"
] | ||
Maximun torque per ampere operation of brushless doubly fed induction machines | [
"Electrical and Electronic Engineering",
"Energy Engineering and Power Technology",
"Renewable Energy, Sustainability and the Environment"
] | ||
Konferenz “Marketing and Business Strategies for Central & Eastern Europe” | [
"Marketing"
] | ||
La face et la personne chez les Arabes | [
"Religious Studies"
] | ||
Synthesis of conducting thin films by electro-oxidative polymerization of phenol | [
"Molecular Medicine"
] | ||
Management of Healthcare Workers Exposed to Pertussis | Infection Control and Hospital Epidemiology | [
"Infectious Diseases",
"Microbiology (medical)",
"Epidemiology"
] | |
Public Support for Market Reforms in New Democracies | Acta Politica | [
"Political Science and International Relations"
] | |
Postoperative morbidity risk factors after conservative surgery of hydatic cyst of the liver: a retrospective study of 151 hydatic cysts of the liver | Abstract Background The purpose of the present paper is to assess the morbidity specifics risk factors of hepatic hydatid cyst after conservative surgery. Methods We conducted a retrospective study of 102 patients over a period of 13 years, from 2006 to 2019. We included all patients operated on hydatid cyst of the liver, complicated and uncomplicated, in the Department of General Surgery in Tahar Sfar hospital, Mahdia, Tunisia. We excluded patients who received an exclusive medical treatment and those who have other hydatic cyst localizations. Results The cohort was composed of 102 patients with a total of 151 cysts operated on using conservative surgery, among them there was 75 women (73.5%) and 27 men (26.5%). The median age was 43, with extremes ranging from 12 to 88 years. The majority of patients (94.1%) were from rural areas. The cysts were uncomplicated in about half of the cases (48%), elsewhere complications such as compression of neighboring organs (25.5%), opening in the bile ducts (16.7%), infection (9.8%), and rupture in the peritoneum (2%) were found. Conservative surgery was the mainstay of treatment with an overall mortality rate of 1.9%. The overall morbidity rate was 22%: 14% specific morbidity and 8% non-specific morbidity. External biliary fistula was the most common postoperative complication (9%). The predictive factors of morbidity in univariate analysis were: preoperative hydatid cyst infection (P = 0.01), Compressive cysts (P = 0.05), preoperative fever and jaundice, (respectively P = 0.03 and P = 0.02), no one achieved statistical significance in the multivariate model. Conclusions Preoperative hydatid cyst infection, compressive cysts and preoperative fever and jaundice could be predictor factors of morbidity after conservative surgery for liver hydatid cyst. They must be considered in the treatment and the surgical decision for patients with hydatid cyst. | [
"Surgery"
] | |
Balenciaga, L’oeuvre au Noir & Fortuny, un Italien à Venise: Complementary takes on Contemporary Monographic Fashion Exhibiting | [
"Visual Arts and Performing Arts",
"Cultural Studies"
] | ||
Manufacturing of Soft Contact Lenses Using Reusable and Reliable Cyclic Olefin Copolymer Moulds | We present experimental evidence of reusable, reliable cyclic olefin copolymer (COC) moulds in soft contact lens manufacturing. The moulds showed high performance surface roughness characteristics despite >20 kW exposure to 365 nm ultraviolet (UV) light from repeated use. Ultra-precision manufacturing techniques were used to fabricate transparent COC mould inserts and to produce soft contact lenses from liquid monomer compositions. Both polymer and silicone hydrogels were fabricated with more than 60 individual uses of the moulds. White light interferometry measured the surface roughness (Sa) of the COC moulds to be almost unchanged before and after repeated use (Sa 16.3 nm before vs. 16.6 nm after). The surface roughness of the prototyped lenses and that of commercially available soft contact lenses were then compared by white light interferometry. The surface roughness of the lenses was also nearly unchanged, despite undergoing more than 60 uses of the COC moulds (lens Sa 24.4 nm before vs. after Sa 26.5 nm). By comparison the roughness of the commercial lenses ranged from 9.3–28.5 nm, including conventional and silicone lenses, indicating that the reusable COC moulds produced competitive surface properties. In summary, COC moulds have potential as reusable and reliable mould inserts in the manufacturing of soft contact lenses, yet maintain high quality optical surfaces even after sustained exposure to UV light. | [
"Polymers and Plastics"
] | |
Possibilities of increasing the life of large structures of coke-oven batteries made of a castable refractory | [
"Materials Chemistry",
"Ceramics and Composites"
] | ||
Spatially Explicit Estimation of Clay and Organic Carbon Content in Agricultural Soils Using Multi-Annual Imaging Spectroscopy Data | Information on soil clay and organic carbon content on a regional to local scale is vital for a multitude of reasons such as soil conservation, precision agriculture, and possibly also in the context of global environmental change. The objective of this study was to evaluate the potential of multi-annual hyperspectral images acquired with the HyMap sensor (450–2480 nm) during three flight campaigns in 2004, 2005, and 2008 for the prediction of clay and organic carbon content on croplands by means of partial least squares regression (PLSR). Supplementary, laboratory reflectance measurements were acquired under standardized conditions. Laboratory spectroscopy yielded prediction errors between 19.48 and 35.55 g kg−1for clay and 1.92 and 2.46 g kg−1for organic carbon. Estimation errors with HyMap image spectra ranged from 15.99 to 23.39 g kg−1for clay and 1.61 to 2.13 g kg−1for organic carbon. A comparison of parameter predictions from different years confirmed the predictive ability of the models. BRDF effects increased model errors in the overlap of neighboring flight strips up to 3 times, but an appropriated preprocessing method can mitigate these negative influences. Using multi-annual image data, soil parameter maps could be successively complemented. They are exemplarily shown providing field specific information on prediction accuracy and image data source. | Applied and Environmental Soil Science | [
"Earth-Surface Processes",
"Soil Science"
] |
Competing plasmonic and charge-transfer excitations in pyridine adsorbed silver and aluminum nanoparticles | Based on time dependent density functional theory calculations, we reveal radical modifications in the optical absorption spectra of pyridine molecules adsorbed on Ag and Al nanoparticles. | [
"Physical and Theoretical Chemistry"
] | |
Nouveaux enjeux sécuritaires et gouvernance externe de l'Union européenne | Politique européenne | [
"Political Science and International Relations",
"Sociology and Political Science"
] | |
The Reversible Dissociation of t-Butyl Esters. Structural Effects and Reactions Mechanism | Journal of the American Chemical Society | [
"Colloid and Surface Chemistry",
"Biochemistry",
"Catalysis"
] | |
Frontmatter | [
"Linguistics and Language",
"History",
"Language and Linguistics",
"Cultural Studies"
] | ||
On obtaining well defined transverse modes and selective line tuning of a long CW CO2laser | [
"Surfaces, Coatings and Films",
"Acoustics and Ultrasonics",
"Condensed Matter Physics",
"Electronic, Optical and Magnetic Materials"
] | ||
Ingestion and effects of virgin polyamide microplastics on Chironomus riparius adult larvae and adult zebrafish Danio rerio | [
"Environmental Chemistry",
"Environmental Engineering",
"Pollution",
"Health, Toxicology and Mutagenesis",
"Public Health, Environmental and Occupational Health"
] | ||
Outcomes after Percutaneous Angioplasty of Arteriovenous Fistulas and Grafts in African American Patients | PurposeArteriovenous fistulas and grafts, necessary for hemodialysis, may develop stenoses due to neointimal hyperplasia, which often require percutaneous transluminal angioplasty. Patient and lesion characteristics were evaluated prior to angioplasty and were correlated with 1- and 6-month outcomes.Materials and MethodsThis was an observational study of African American hemodialysis patients who presented for angioplasty of a dysfunctional fistula or graft. Clinical outcomes were ascertained from dialysis facilities 1 month and 6 months after angioplasty. One-month clinical success was defined as dialyzer blood flows of 450 mL/min without complications or interval shunt thrombosis, interventions, or loss of access, which was rarely achieved at 6 months. Logistic regression models were used to evaluate associations of clinical variables with outcomes.ResultsThere were 150 stenoses treated during 99 procedures performed on 82 patients. The clinical success rate at one month was 67% with no complications as a result of the percutaneous transluminal angioplasty. Success at 1 month was positively associated with use of aspirin ( P = .005) and with referral for high venous pressures ( P = .004). Six-month data were available for 81 procedures, with 45.7% requiring repeat angioplasty and 12.3% suffering major complications (thrombectomy, revision surgery, or access abandonment). Major complications were seen predominantly in patients who were not receiving aspirin.ConclusionsAspirin use and high venous pressure were associated with 1-month clinical success and fewer major complications at 6 months. Future work should investigate biologic mechanisms of action of aspirin and long-term effects of use to maintain vascular access. | [
"Radiology, Nuclear Medicine and Imaging"
] | |
Mary Joy Bradley | [
"Orthopedics and Sports Medicine"
] | ||
Subject index volume 94 (1995) | [
"Toxicology"
] | ||
Bacterial and fungal community composition over time in chicken litter with high or low moisture content | [
"Animal Science and Zoology",
"Food Science"
] | ||
Wonder in Shakespeare (review) | [
"Literature and Literary Theory",
"Visual Arts and Performing Arts"
] | ||
Levosimendan in the emergency department: a useful tool to improve cellular perfusion | [
"Critical Care and Intensive Care Medicine"
] | ||
Looking for edge-equitable spanning trees | Computers & Operations Research | [
"Management Science and Operations Research",
"Modeling and Simulation"
] | |
European attitudes to water pricing: Internalizing environmental and resource costs | [
"Management, Monitoring, Policy and Law",
"Waste Management and Disposal",
"Environmental Engineering"
] | ||
Callitriche cophocarpa biomass as a potential low-cost biosorbent for trivalent chromium | [
"Management, Monitoring, Policy and Law",
"Waste Management and Disposal",
"Environmental Engineering"
] | ||
A Tour in South Africa | [
"Geography, Planning and Development"
] | ||
Learning from replication | [
"Behavioral Neuroscience",
"Experimental and Cognitive Psychology",
"Social Psychology"
] |
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