gebhart/patrepeval huggingface dataset:
Light scattering from solubilized polyacetylene (1984)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLight scattering from solubilized polyacetyleneF. L. VanNice, Frank S. Bates, Gregory L. Baker, P. J. Carroll, and Gary. D. PattersonCite this: Macromolecules 1984, 17, 12, 2626–2629Publication Date (Print):December 1, 1984Publication History Published online1 May 2002Published inissue 1 December 1984https://pubs.acs.org/doi/10.1021/ma00142a029https://doi.org/10.1021/ma00142a029research-articleACS PublicationsRequest reuse permissionsArticle Views110Altmetric-Citations25LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Flavonoid Compounds Are Enriched in Lemon Balm (Melissa officinalis) Leaves by a High Level of Sucrose and Confer Increased Antioxidant Activity (2009)

Medicinal plants are widely used in traditional medicine because plant secondary metabolites have been shown to benefit a broad spectrum of health conditions. Lemon balm, Melissa officinalis L., a member of the mint family, is native to Europe and is well known for its ability to reduce stress and anxiety, promote sleep, and ease pain and discomfort associated with digestion. In various plant species, strong anthocyanin induction is triggered by sucrose, but not by other sugars or osmotic stress; however, the mechanisms that induce anthocyanin accumulation in lemon balm leaves in response to sucrose and phytohormones remain unclear. In this study, we investigated the mechanisms that lead to increased levels of flavonoids in lemon balm plants. We observed that sucrose significantly increases the level of flavonoids in lemon balm plants and that sucrose induction appears to be mediated by the phytohormones abscisic acid and ethylene. We also identified delphinidin as the anthocyanidin that is primarily enriched in leaves grown in high-sucrose medium. Finally, we observed that reactive oxygen species levels are positively correlated with sucrose-mediated anthocyanin accumulation. Taken together, our results demonstrate that the level of flavonoids in lemon balm can be increased significantly and that plants such as lemon balm could potentially be used to prevent diseases that have been purported to be caused by free radical damage. Chemical abbreviations used: ABA, (+)-cis, transabscissic acid; ACC, 1-aminocyclopropane-carboxylic acid; CHI , chalcone isomerase; CHS , chalcone synthase; DPPH, 2, 2-diphenyl-1-picrylhydrazyl; GA, gibberellic acid; IAA, indole-3-acetic acid.
IL8 and serum soluble TRAIL levels following anti-VEGF monoclonal antibody treatment in patients with metastatic colon cancer. (2012)

In BevacizumAb therapy, serum IL8 levels were decreased in all patients, and thus, changes in such levels were not correlated with disease outcome. Our data suggest measurement of changes in sTRAIL following BevacizumAb treatment may have prognostic value in metastatic colon cancer patients.
lingvis.io - A Linguistic Visual Analytics Framework (2019)

Mennatallah El-Assady, Wolfgang Jentner, Fabian Sperrle, Rita Sevastjanova, Annette Hautli-Janisz, Miriam Butt, Daniel Keim. Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics: System Demonstrations. 2019.
Revealing the Reconstructed Surface of Li[Mn2]O4 (2016)

The spinel Li[Mn2]O4 is a candidate cathode for a Li-ion battery, but its capacity fades over a charge/discharge cycle of Li1-x[Mn2]O4 (0 < x < 1) that is associated with a loss of Mn to the organic-liquid electrolyte. It is known that the disproportionation reaction 2Mn(3+) = Mn(2+) + Mn(4+) occurs at the surface of a Mn spinel, and it is important to understand the atomic structure and composition of the surface of Li[Mn2]O4 in order to understand how Mn loss occurs. We report a study of the surface reconstruction of Li[Mn2]O4 by aberration-corrected scanning transmission electron microscopy. The atomic structure coupled with Mn-valence and the distribution of the atomic ratio of oxygen obtained by electron energy loss spectroscopy reveals a thin, stable surface layer of Mn3O4, a subsurface region of Li1+x[Mn2]O4 with retention of bulk Li[Mn2]O4. This observation is compatible with the disproportionation reaction coupled with oxygen deficiency and a displacement of surface Li(+) from the Mn3O4 surface phase. These results provide a critical step toward understanding how Mn is lost from Li[Mn2]O4, once inside a battery.
Effect of counter-ions on the solution conformation and adsorption behaviors of comb-like polycarboxylates on calcium carbonate (2019)

Three kinds of polycarboxylate ether (PCE) polymers with the same length of side chains but different backbone length were synthesized by aqueous free radical polymerization. Adding counter-ions (i.e., Na+, Ca2+) to dilute PCE solutions was found to induce a more complicated conformational change, since the screening of the electrostatic intramolecular repulsion and the different complexation behaviors of Ca2+ with carboxylic groups. Further characterization on the adsorption indicated that the differences of the adsorption ability resulted from the difference in the solution conformation of PCE molecule. PCE of a medium backbone length studied herein possesses a more extended polymer backbone due to the intermolecular steric hindrance, which result in more carboxylic groups could be accessible for adsorption. Obviously, the solution conformation of PCE strongly impacts the accessible carboxylic group contribution to adsorption. In this way it may provide a new insight to design the polymer structures of PCE with superior adsorption ability.
Physiographic Controls on Landfast Ice Variability from 20 Years of Maximum Extents across the Northwest Canadian Arctic (2022)

Landfast ice is a defining feature among Arctic coasts, providing a critical transport route for communities and exerting control over the exposure of Arctic coasts to marine erosion processes. Despite its significance, there remains a paucity of data on the spatial variability of landfast ice and limited understanding of the environmental processes’ controls since the beginning of the 21st century. We present a new high spatiotemporal record (2000–2019) across the Northwest Canadian Arctic, using MODIS Terra satellite imagery to determine maximum landfast ice extent (MLIE) at the start of each melt season. Average MLIE across the Northwest Canadian Arctic declined by 73% in a direct comparison between the first and last year of the study period, but this was highly variable across regional to community scales, ranging from 14% around North Banks Island to 81% in the Amundsen Gulf. The variability was largely a reflection of 5–8-year cycles between landfast ice rich and poor periods with no discernible trend in MLIE. Interannual variability over the 20-year record of MLIE extent was more constrained across open, relatively uniform, and shallower sloping coastlines such as West Banks Island, in contrast with a more varied pattern across the numerous bays, headlands, and straits enclosed within the deep Amundsen Gulf. Static physiographic controls (namely, topography and bathymetry) were found to influence MLIE change across regional sites, but no association was found with dynamic environmental controls (storm duration, mean air temperature, and freezing and thawing degree day occurrence). For example, despite an exponential increase in storm duration from 2014 to 2019 (from 30 h to 140 h or a 350% increase) across the Mackenzie Delta, MLIE extents remained relatively consistent. Mean air temperatures and freezing and thawing degree day occurrences (over 1, 3, and 12-month periods) also reflected progressive northwards warming influences over the last two decades, but none showed a statistically significant relationship with MLIE interannual variability. These results indicate inferences of landfast ice variations commonly taken from wider sea ice trends may misrepresent more complex and variable sensitivity to process controls. The influences of different physiographic coastal settings need to be considered at process level scales to adequately account for community impacts and decision making or coastal erosion exposure.
Use of a proliferation-based mRNA signature to predict outcome in early-stage non-small cell lung adenocarcinoma. (2012)

7023 Background: Adjuvant treatment of patients with early-stage lung adenocarcinoma is based on post-surgical pathological staging and patient performance status. Disparate outcomes within each staging group suggest that additional prognostic markers could improve our understanding of risk-benefit and potentially lead to better treatment decisions. A proliferation-based, mRNA expression profile was applied to public microarray data of surgically treated lung adenocarcinomas and a cohort of FFPE samples to test its potential prognostic utility. Methods: Public expression data (Director’s Consortium, DC) were derived from Affymetrix HG-U133A arrays. Clinical FFPE samples were assayed by quantitative PCR. A cell cycle progression (CCP) score was calculated from the expression average of 31 cell cycle genes normalized by 15 housekeeper genes. The prognostic value of the CCP score to predict stage I and II patient outcomes was evaluated by Cox proportional hazards analysis with disease-related death as the primary outcome measure. Results: In 256 DC cases, the CCP score was a significant predictor of death in univariate (p=0.0001) and multivariate analysis (p=0.001, HR 1.57, 95%CI 1.20-2.05) using age, stage, gender, smoking status and treatment as covariates. Similarly, in a second data set (GSE31210, n=204) the CCP score was highly associated with death (univariate, p=0.001; multivariate analysis, p=0.003, HR 1.81, 95% CI 1.24-2.66). Using quantitative PCR, the signature was applied to 381 FFPE samples with a median follow-up of 5 years collected at the MD Anderson Cancer Center and the European Institute for Oncology. In the presence of clinical covariates (as above and tumor size and pleural invasion), the CCP score remained the most significant predictor of death in univariate (p=0.0003) and multivariate analysis (p=0.007, HR 1.50, 95% CI 1.11-2.02). Conclusions: A 46 gene mRNA signature is a significant predictor of disease-related death in early-stage lung adenocarcinoma, providing independent prognostic value in the presence of clinical variables. This molecular predictor of cancer survival will be studied in additional cohorts for its ability to impact clinical treatment decisions.
Swashbuckling Drama and Music (2012)

A swashbuckler is a charismatic outlaw or otherwise larger‐than‐life figure whose unruly actions fall outside the conventional boundaries of civilized conduct. The term also refers to the modes of dramatic representation that depict such audacious exploits and flamboyant personages. Swashbuckler music, then, is the collection of musical genres, styles, and gestures that facilitate these portrayals, either as accompaniment to theatrical productions or in concert and private performance. Although the category itself is of relatively recent vintage, the narratives, modes of representation, and musical techniques that the term encompasses reached maturity at the end of the eighteenth century in Europe, during the early years of the Romantic movement.
Porous Hollow PtNi/C Electrocatalysts: Carbon Support Considerations To Meet Performance and Stability Requirements (2017)

The influence of the texture, structure, and chemistry of different carbon supports on the morphological properties, oxygen reduction reaction (ORR) activity, and stability of porous hollow PtNi nanoparticles (NPs) was investigated. The carbon nanomaterials included carbon blacks, carbon nanotubes, graphene nanosheets, and carbon xerogel and featured different specific surface areas, degrees of graphitization, and extent of surface functionalization. The external and inner diameters of the supported porous hollow PtNi/C NPs were found to decrease with an increase in the carbon mesopore surface area. Despite these differences, similar morphological properties and electrocatalytic activities for the ORR were reported. The stability of the synthesized electrocatalysts was assessed by simulating electrochemical potential variations occurring at a proton exchange membrane fuel cell (PEMFC) cathode during startup/shutdown events. Identical location transmission electron microscopy (IL-TEM) and electrochemical methods revealed the occurrence of a carbon-specific degradation mechanism: carbon corrosion into CO2 and particle detachment were noticed on carbon xerogels and graphene nanosheets while, on carbon blacks, surface oxidation prevailed (C → COsurf) and did not result in modified electrical resistance of the catalytic layers, rendering these carbon supports better suited to prepare highly active and stable ORR electrocatalysts.
A silhouetting shape sensor for the residual limb of a below-knee amputee (1995)

A shape sensor based on silhouette imaging techniques was developed to accurately and quickly measure the external geometry of the residual limb of a below-knee amputee. The sensor represents an improvement over previous residual limb imaging methods in that the resolution was higher, the scan-time was shorter, no ionizing radiation was used, and the technique was less sensitive to hair on the residual limb. The sensor will be used for investigative research of long-term (maturation) and short-term (diurnal) residual limb shape changes-information of critical importance to prosthetic fitting because of the effects of shape changes on stress distributions between the residual limb and prosthetic socket. The shape sensor uses a charged-coupled device video camera mounted to one end of an aluminum beam which is fixed at its other end to the shaft of a stepping motor, forming a simply supported cantilever. The motor accelerates the camera around the residual limb up to a constant angular velocity of 202.3/spl deg//s. During 216/spl deg/ of the constant-velocity portion of rotation, 17 images are captured at intervals of 13.5/spl deg/ and stored electronically to a computer. The images of the residual limb are then processed to produce silhouette contour outlines which are then used to reconstruct the three-dimensional residual limb shape. Using this silhouette imaging method, the sensor could measure the geometry of residual-limb areas susceptible to shape change with a radial resolution of 0.5 mm in a scan-time of 1.07 s.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Dossier Interdisciplinarité. Une ouverture interdisciplinaire pour la biologie : l'école de Berder (2007)

Ce texte discute les enjeux des approches interdisciplinaires, par opposition à une spécialisation accrue, face aux grandes questions de la biologie actuelle et aux défis que posent l'analyse et l'interprétation de données expérimentales de plus en plus riches et extensives. Pour favoriser l'établissement de collaborations interdisciplinaires efficaces et durables, nous organisons depuis 2002 une école-chercheurs annuelle, dans l'île de Berder (Morbihan), soutenue par les formations permanentes du CNRS et de l'Inra. Nous décrivons les spécificités de cette école et comment elle répond aux attentes de formation et d'échanges de ses participants : un grand nombre d'orateurs, un équilibre entre les différentes disciplines, des exposés synthétiques et pédagogiques, une grande place laissée aux questions, débats, interactions et animations de terrain, pendant une semaine intense et coupée des préoccupations immédiates.
Insulated Nanowire Bundles through Consecutive Template Synthesis (2003)

Conducting research and wiring zeolites: By a sol–gel process MCM-41 zeolite scaffolds are prepared, the channels of which are evenly loaded with pyrrole or thiophene template monomers. Redox-initiated polymerization leads to linking of the monomer units in the channels to form insulated potentially conducting molecular wires. These strategies increase the synthetic palette available for the targeted preparation of organic–inorganic hybrid materials.
Mycosis Inhibits Cannibalism byMelanoplus sanguinipes,M. differentialis,Schistocerca americana, andAnabrus simplex (2013)

Cannibalism is common among the Acrididae and the Mormon cricket, Anabrus simplex Haldeman (Orthoptera: Tettigoniidae). This behavior has been proposed as a mechanism for the horizontal transmission of Microsporida and entomopathogenic fungi. Aanecdotal observations suggested that the migratory grasshopper, Melanoplus sanguinipes Fabricius (Acrididae), and A. simplex did not eat cadavers that had been killed by insect pathogenic fungi. The hypothesis tested was that A. simplex or M. sanguinipes would not cannibalize individuals freshly killed by the entomopathogenic fungi, Beauveria bassiana Bals.-Criv. (Vuill.) (Hypocreales: Clavicipitaceae), or Metarhizium acridum (Driver and Milner) Bischoff, Rehner, and Humber. Cannibalism was examined in a series of no-choice tests with individual insects. Test insects included healthy adults of M. sanguinipes; the differential grasshopper, M. differentialis (Thomas); the American grasshopper, Schistocerca americana (Drury) (Acrididae); and A. simplex. Individual, starved Acrididae or A. simplex were confined in small cages with either a fungus-killed (but unsporulated) or uninfected cadaver. The insects were then observed periodically for the first 4 hr. After 24 hr, the cadavers were scored for the degree to which they had been consumed. Very few mycotic cadavers were fed upon by the healthy insects, and, at most only the tarsi were eaten. All four species generally refused to eat fungus-infected cadavers. In contrast, freeze-killed cadavers were partly or entirely consumed by most of the test insects, often within a few hours. Transmission of infection through contact in these tests was between 0-18.9%, depending upon the fungus and insect species, and was lower than the prevalence of cannibalism in all cases.
Staphylococcus aureus Sepsis and Mitochondrial Accrual of the 8-Oxoguanine DNA Glycosylase DNA Repair Enzyme in Mice (2010)

These studies identify OGG1 as an early mitochondrial response protein during sepsis under regulation by the NRF-1 and NRF-2α transcription factors that regulate mitochondrial biogenesis.
Periostin levels in chronic obstructive pulmonary disease (COPD) (2018)

<b>Background:</b> Periostin is an extracellular matrix protein that reflects airway epithelial injury. In asthma, periostin is considered to be useful as a biomarker of type 2 inflammation. In addition, it has been reported that periostin associates with respiratory diseases such as idiopathic pulmonary fibrosis. However, it is unknown that the relationship between periostin and other biomarkers in chronic obstructive pulmonary disease (COPD). <b>Objective:</b> We investigated the relationship between serum periostin levels and other biomarkers including serum markers and pulmonary function. <b>Methods:</b> Ninety-three COPD patients were enrolled, and we reviewed associations among serum periostin, other serum biomarkers and clinical features. <b>Results:</b> Fractional exhaled nitric oxide (FeNO), IgE, and age showed correlations with serum periostin levels respectively, whereas blood eosinophils and stages of COPD showed no correlations. <b>Conclusion:</b> Periostin may be a useful biomarker of type 2 inflammation in COPD.
Bio-based Aromatic Amines from Lignin-Derived Monomers (2019)

A new approach to synthesize valuable 3,4- dialkoxyanilines and alkyl propionates from lignin-derived 4- propylguaiacol and -catechol with overall isolated yields up to 65% has been described. The strategy is based on the introduction of nitrogen via a Beckmann rearrangement. Amino introduction therefore coincides with a C-defunctionalization reaction; overall a replacement of the propyl chain by an amino group is obtained. The process only requires cheap bulk chemicals as reagents/reactants and does not involve column chromatography to purify the reaction products. Furthermore, all carbon atoms from the biorenewable lignin-derived monomers are transformed into valuable compounds. Greenness was assessed by performing a Green Metrics analysis on two dialkoxyanilines. A comparison was made with literature routes for these compounds starting from a petrochemical substrate.
Abstract 12104: Prospective Study Using a New Formula Incorporating Contact Force, Radiofrequency Power and Application Time (Force-Power-Time Index) for Quantifying Lesion Formation to Guide Long Continuous Atrial lesions in the Beating Canine Heart (2013)

Introduction: In a previous study on radiofrequency (RF) ablation in the canine right and left ventricle, we found that lesion depth was predicted accurately (± 1mm) by a logarithmic function of co...
Diffusion-weighted MR Imaging for the Regional Characterization of Liver Tumors (2012)

Results of this study show that viable tumor regions in malignant liver tumors can be differentiated from fibrous and necrotic regions with use of the pure diffusion coefficient but not with the other diffusion parameters.
Computer Modeling of the Laboratory Testing of Mini- Magnetospheric Plasma Propulsion (M2P2) (2001)

Recent laboratory testing has demonstrated that the mini-magnetospheric plasma propulsion (M2P2) prototype is able to (1) efficiently produce plasma, (2) expand magnetic field lines and produce an inflated magnetosphere, and (3) deflect an external plasma source at large distances. Multi-fluid computer simulations are used to model the experimental configuration with the objective of quantifying the characteristics of the magnetic field inflation, and its deflection of an external plasma wind. The simulations show that the injection of plasma onto the closed field lines of the magnet, equatorial magnetic flux is carried out by the plasma and results in an increase in magnetic flux away from the magnet until obstructed by the chamber walls. The spatial and temporal profiles of the magnetic field perturbations derived from the simulations are shown to be consistent with the laboratory data and show the full extent of the prototype’s ability to transport magnetic flux and inflate a mini-magnetosphere. Deflection of an external plasma source by the M2P2 prototype is also investigated. The simulations show that the plasma wind will be deflect d by the inflated mini-magnetosphere. This deflection leads to a depletion of wind plasma in the near vicinity of the mini-magnetosphere. It is also produces a broadening and compression of the plasma plume close to the external plasma