gebhart/patrepeval huggingface dataset:
Continuous Dual-Track Fabrication of Polymer Micro-/Nanofibers Based on Direct Drawing (2019)

This manuscript proposes a continuous and straightforward method for fabricating suspended micro- and nanodiameter polymer fibers using an automated single-step drawing system. Termed track spinning, the system is based on a simple manual fiber drawing process that is automated by using two oppositely rotating tracks. Fibers are continuously spun by direct contact of polymer solution coated tracks followed by mechanical drawing as the distance between the tracks increases. The device can draw single or multifilament arrays of micro- and nanofibers from many kinds of polymers and solvent combinations. To demonstrate, fibers were pulled from polymer solutions containing polyvinyl acetate (PVAc) and polyurethane (PU). Fiber morphology was smooth and uniform, and the diameter was sensitive to draw length and polymer solution/melt properties. Polymer nanofibers with diameters as small as 450 nm and length of 255 mm were produced. The track spinning method is able to form fibers from high viscosity solutions and melts that are not compatible with some other nanofiber fabrication methods. Further, the setup is simple and inexpensive to implement and nozzleless and does not require an electric field or high-velocity jets, and the tracks can be widened and patterned/textured to enhance fiber yield and manufacturing precision.
Nanocristaux semiconducteurs: des sources de lumière pour l'optique et la biologie (2005)

Nous présentons ici un résumé de nos travaux sur l'utilisation de nanocristaux semiconducteurs comme sondes fluorescentes pour l'optique et la biologie.
Dominio público: Comparte tu música con todo el mundo y ve las noticias de todo el mundo. (2009)

iTunes permite compartir la musica de un Mac con otros ordenadores de la red, actuando como servidor central de musica del que se sirvan los demas equipos y escuchar nuestra musica en multiples ordenadores sin tener que copiar toda la discoteca.
Conformational barriers in triplet 1- and 2-naphthylcarbene. 2. Absolute rate of decay of arylcarbenes by electron spin resonance spectroscopy (1981)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTConformational barriers in triplet 1- and 2-naphthylcarbene. 2. Absolute rate of decay of arylcarbenes by electron spin resonance spectroscopyV. P. Senthilnathan and Matthew S. PlatzCite this: J. Am. Chem. Soc. 1981, 103, 18, 5503–5511Publication Date (Print):September 1, 1981Publication History Published online1 May 2002Published inissue 1 September 1981https://pubs.acs.org/doi/10.1021/ja00408a037https://doi.org/10.1021/ja00408a037research-articleACS PublicationsRequest reuse permissionsArticle Views168Altmetric-Citations32LEARN 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
Impact of Strand Length on the Stability of Parallel‐β‐Sheet Secondary Structure (2011)

Molecular design can be used to investigate whether the parallel-β-sheet secondary structure is subject to length-dependent cooperative stabilization along the strand direction (see picture). Extending strands by adding high-propensity residues (B) leads to a steady increase in parallel-β-sheet stability, but inclusion of low-propensity residues (A) can negate this stabilization. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Theory of mind in Parkinson's disease and related basal ganglia disorders: A systematic review (2009)

Theory of mind (ToM), defined as the ability to infer other people's mental states, is a crucial prerequisite of human social interaction and a major topic of interest in the recent neuroscientific research. It has been proposed that ToM is mediated by a complex neuroanatomical network that includes the medial prefrontal cortex, the anterior gyrus cinguli, the sulcus temporalis superior, the temporal poles, and the amygdala. Various neurological and psychiatric diseases are accompanied by aspects of dysfunctional ToM processing. In this review, the association between basal ganglia, involved in the organization of complex cognitive and emotional behavior, and ToM processing is discussed. The purpose of this review is to provide an overview of research on ToM abilities in basal ganglia disorders, especially Parkinson's Disease and related disorders.
Adaptive Downlink Power Control for Co-Channel Femtocells in OFDMA Cellular Networks (2014)

In this paper, we derive the outage probability (OP) expressions for co-channel OFDMA macrocell- femtocell networks as a function of femtocell radio parameters and load conditions of neighboring macrocells. From the derived OPs, for a given macrocell network load, we analyze the minimum and maximum transmit power for femtocells that maintains OPs of both macrocell and femtocell users within the acceptable level. The results show that the OP performance in co-channel deployment mode is highly sensitive to macrocell load. It is seen that by dynamically adjusting transmit power of femtocells along with the activity status of suchannels according to varying network load condition, the co-channel interference can be effectively controlled while meeting QoS requirements of macrocell and femtocell users.
Additional file 2: of Phylogenetic, epidemiological and functional analyses of the Streptococcus bovis/Streptococcus equinus complex through an overarching MLST scheme (2016)

Title of data: Primers developed and used in this study. Description of data: Primers developed and used in this study for the Sii/SBSEC MLST scheme of housekeeping genes and identification based on groEL, lacS and lacZ genes. (PDF 224 kb)
The Challenges of Dynamic Programming (2007)

This chapter contains sections titled: A Dynamic Programming Example: A Shortest Path Problem The Three Curses of Dimensionality Some Real Applications Problem Classes The Many Dialects of Dynamic Programming What is New in this Book? Bibliographic Notes
Monostearoylglycerol-Starch Complex: Its Digestibility and Effects on Glycemic and Lipogenic Responses. (1994)

We examined whether a modification of a starch into an alpha-amylase resistant form can lead to a reduction of postprandial glucose and insulin responses, and consequently to a change of lipid metabolism in liver and adipose tissue. For this purpose, a processed starch was prepared using a cornstarch (70% amylose and 30% amylopectin) and monoacylglycerol (monostearate; MS), forming monostearate-starch complex (MS-treated cornstarch). When we determined in vitro hydrolysis of MS-treated cornstarch using alpha-amylase and intestinal microvillar alpha-glucosidases, the glucose production rate of the MS-treated cornstarch was slower than the non-treated cornstarch. Measurement of a transmural potential difference (delta PD) evoked by the MS-treated cornstarch in everted rat jejunum showed that the absorption rate of glucose released from the MS-treated cornstarch was also remarkably slower than that from the non-treated cornstarch. The postprandial plasma insulin response to the MS-treated cornstarch was reduced, although plasma glucose response was unchanged. In a feeding study, two groups of five or six male Wistar-strain rats were fed defined diets containing 61.1% MS-treated cornstarch or 58.2% non-treated cornstarch ad libitum for 14 days. Food intakes during the period were similar between the two groups. Feeding the MS-treated cornstarch resulted in a significantly lower maltase activity in upper jejunum than did the non-treated cornstarch feeding. The activities of lipogenic enzymes--fatty acid synthetase (FAS), malic enzyme (ME), and glucose-6-phosphate dehydrogenase (G-6-PDH)--significantly decreased in epididymal adipose tissue of rats fed the MS-treated cornstarch. In the liver, FAS activity was lower in the MS-treated cornstarch group. The results indicated that MS-treated cornstarch was digested less rapidly, and lowered blood insulin response, consequently leading to a declined lipogenesis of adipose tissue and liver. This study suggests that the rate of intestinal hydrolysis of starch is an important determinant of metabolic responses such as glycemic and lipogenic responses to diets.
Sulfate reducing bacteria applied to domestic wastewater (2018)

Abstract The application of sulfate reducing bacteria (SRB) to treat municipal wastewater is seldom considered. For instance, due to low sludge yield it can reduce the amount of excess sludge produced significantly. Several studies, mainly at laboratory-scale, revealed that SRB can proliferate in artificial wastewater systems at temperatures of 20°C and lower. So far, the application of SRB in a domestic wastewater treatment plant has been limited. Therefore, this study evaluates the proliferation of SRB at pilot-scale in a moderate climate. This study revealed that SRB were present and active in the pilot fed with domestic wastewater at 13°C, and outcompete methanogens. Stable, smooth and well-settled granule formation occurred, which is beneficial for full-scale application. In the Netherlands the sulfate concentration is usually low (&lt;500 mg/L), therefore the application of SRB seems challenging as sulfate is limiting. Additional measurements indicated the presence of other sulfur sources, therefore higher sulfur levels were available, which makes it possible to remove more than 75% of the chemical oxygen demand (excluding sulfide) based on SRB activity. The beneficial application of SRB to domestic wastewater treatment might therefore be valid for more locations than initially expected.
Serum Antielastase and Neutrophil Elastase Levels in PiM Phenotype Cigarette Smokers with Airflow Obstruction (1985)

In order to assess blood factors which might explain why some cigarette smokers develop airflow obstruction while others do not, we compared two groups of PiM phenotype volunteers matched for age, sex and total pack-years of cigarette smoking; one group had airflow obstruction and the other did not. Functional levels of alpha-2-macroglobulin (alpha-2-M) and alpha-1-protease inhibitor (alpha-1-PI) were separately assessed by a protease binding procedure. Neutrophils were isolated from blood by counterflow centrifugation, and their elastase content was assayed with 3H-elastin-SDS (sodium dodecyl sulfate). The obstructed and nonobstructed groups were not different with respect to functional or immunoreactive levels of alpha-1-PI and alpha-2-M or elastase levels in their neutrophils. We do not find imbalances of circulating elastase or antielastase levels in PiM phenotype smokers with airflow obstruction.
THz pulse applied to characterize the group delay dispersion of an ultrashort optical pulse (2016)

We demonstrate that the spectral analysis of the optical spectrum produced by the interaction of optical and THz pulses in a ZnTe crystal makes it possible to characterize the group delay dispersion of an optical pulse.
Increased Hippocampal 5‐Lipoxygenase mRNA Content in Melatonin‐Deficient, Pinealectomized Rats (1997)

Melatonin is neuroprotective because of its antioxidative action, but it also can modify neuronal vulnerability by altering gene expression. 5-Lipoxygenase (5-LO) gene expression is suppressed by the binding of melatonin to its high-affinity nuclear receptors. Recently, we reported that in rats the melatonin deficiency elicited by pinealectomy increases hippocampal susceptibility to excitotoxic injury. Here we have hypothesized that pinealectomy may increase hippocampal vulnerability by eliminating the tonic inhibitory action of melatonin on 5-LO gene expression. Sham-pinealectomized controls and pinealectomized rats were killed 15 days after surgery. Their hippocampi were dissected, and total RNA was extracted and processed for quantitative reverse transcription-polymerase chain reaction assay of 5-LO and cyclophilin mRNAs. Mutated primers were used as internal standards to assay attomole quantities of these two specific mRNAs per microgram of total RNA; the ratio 5-LO/cycophilin was used to compare samples from control and pinealectomized rats. Pinealectomy increased hippocampal 5-LO mRNA content by about threefold. These results support our hypothesis that melatonin deficiency may abate the tonic inhibition of 5-LO mRNA expression and thereby up-regulate 5-LO gene expression, which in turn would increase the brain's synthesis rate of potentially harmful eicosanoids, leukotrienes.
New Pyrones from the Mangrove Endophytic Fungus Pestalotiopsis sp (2011)

Pestalotiopsis is generally found as endophytes of tropical plants and as prolific producers of structurally unusal natural products [1]. Our previous chemical investigations on fungus species Pestalotiopsis JCM2A4 isolated from the Chinese Mangrove plant Rhizophora mucronata Lam. have led to the isolation of a series of natural products and yielded over twenty different compounds with seventeen of them being new natural products including chromones, cytosporones and coumarins [2–3]. Following cultivation of the fungus now yielded eight new pyrone derivatives (1) as well as a known compound. The structures of all compounds were unambiguously established from their spectroscopic data, that included HR-ESIMS and 1- and 2-dimensional NMR spectroscopy, and by comparison with the literature [4]. Our findings proved endophyte genus Pestalotiopsis to be particularly productive.
Size dependence of the magnetic response of graphite oxide and graphene flakes – an electron spin resonance study (2010)

Abstract We employed electron spin resonance (ESR) technique in the investigation of a series of graphene flakes with different size distributions. Graphene oxide (GO) samples with three distinct size distributions were prepared by the Brodie method. Large flakes of ∼2500 µm 2 , intermediate size flakes of ∼1 µm 2 , and small ones of ∼500 nm 2 have been characterized by ESR in the 4–295 K temperature range. Already for GO flakes the magnetic response strongly varies with their size. Large GO flakes are inhomogeneous, revealed by the presence of both Pauli and Curie components in the overall signal. In small GO flakes ESR spin susceptibility reveals superparamagnetic behavior ascribed to interaction between localized spins. The intermediate flakes show a standard Curie behavior showing a uniform oxidation and the concomitant non‐interacting localized spins. On this batch a thermal method of reduction was applied such that in polar solvent the suspension of GO was heat treated at temperatures below 200 °C. ESR susceptibility shows that this reduction can recover some of the Pauli‐like contribution of the pristine graphene. However, our study shows that the full optimization of oxidation/reduction parameters is yet to be achieved.
Tetrakis(triphenylarsine)copper(I) hexafluoridophosphate (2007)

In the crystal structure of the title compound, [Cu(C(18)H(15)As)(4)]PF(6), the Cu atom is coordinated by four As atoms of triphenyl-arsine ligands in a tetra-hedral geometry. The complex cation is located on a crystallographic threefold axis. Both PF(6) (-) anions are located on special positions of site symmetry . The Cu-As bond of the independent arsine ligand is shorter than the Cu-As bonds of the three symmetry-related arsine ligands.
Influence of Gap Length on the Gas-Puff Z-Pinch Plasma Produced by an Inductive Pulsed Power System (2002)

In this study, Ar gas-puff z-pinch plasma is produced by an inductive pulsed power system. Gap length dependency of the z-pinch plasma characteristics such as a pinching plasma behavior, soft x-ray emissions, spatial distribution of hot spots is investigated. The soft x-ray output is increased with the gap length and hot spots generated by the sausage instability is distributed along the z-axis in case of shorter delay time of the discharge onset. However, hot spots are distributed in the center of the gap space with the increase of the delay time in any gap length and the number of hot spots is decreased.
Better than Real Life: Ultra Content for Ultra Broadband Networks (2012)

It is the premise of this paper that we are entering an inflection point that is as powerful as the emergence of television 65 years ago.The paper discusses the impact of gigabit-speed networks on media content. Such impact will clearly not be simply on “more” – a widening of offerings, but also on richer media, i.e., a deepening in terms of informational intensity. I have discussed this in the past, and this is the starting point for further analysis on the implications. First, I want to identify, using incipient offerings, in what directions media content is likely to move, and the nature of interactive and immersive content. Second, what are the societal implications of content that is “better than reality”, where content that is dense in impressions is directed at viewers and users, whether at home or on the move? Third, what are the economic foundations of such a media system? Fourth, what are the likely market structures of such an environment, both U.S. domestically and globally? And fifth, what are the policy and regulatory issues we need to prepare for? The paper starts with data and then moves into interpretation.While some of this might be speculative in nature, many elements of this analysis would be based on data analysis of the continuation of long-term trends in information enrichment, of a shift from shared media to individualized ones, and of production costs and user fragmentations. While it might be easier to schedule papers that are focused on narrow and immediate issues, I believe that an event such as TPRC also requires a broad-gauged discussions of ‘where is all this taking us’. I therefore respectfully propose that this paper would be part of a multi-presentation plenary that is devoted to such a discussion. Such a plenary would go beyond the frequently trite presentations of mid-level Washington policy makers extolling their agencies’ accomplishments or critiquing those of their successors. A more forward-looking panel would provide common food for thought as well as an agenda for future research. I am ready to assist in the creation of such a panel.
Hyperpyruvicemia With Hyper-alpha-alaninemia (1970)

RECURRENT EPISODES of cerebellar ataxia and motor incoordination precipitated by infection have been reported in a 6-year-old boy with optic atrophy, in association with hyperalaninemia, hyperpyruvicemia, and an apparent defect in the catabolism of pyruvic acid.1A similar metabolic defect has been demonstrated in leukocytes and cultured skin fibroblasts of a similar patient,2whose ophthalmic findings are to be described. Both pyruvate and its transamination product, alanine, accumulated in this individual's plasma. The patient's father exhibited an intermediate chemical abnormality. Other cases, possibly representing a spectrum of related biochemical defects, have been alluded to in the literature.3-6 Report of a Case Since the age of 16 months, this 8-year-old boy has had a cerebellar and choreoathetoid movement disorder associated with stress or febrile illnesses. The acute episodes lasted from hours to weeks and, at times, were manifested by ataxic gait, erratic eye and body movements, abnormal
Precise measurement of thermal-induced refractive-index change in BaTiO_3 on the basis of anisotropic self-diffraction (2001)

We propose a method for precise measurement of the temperature-dependent refractive-index change in BaTiO(3) by use of anisotropic self-diffraction (ASD). In this method the refractive-index change corresponds to the angle deviation of the diffraction pattern. Because only the geometry of the ASD is used for measuring, the precision of measurement is independent of crystal thickness and environmental perturbation. The accuracy of the refractive-index change achieved is 10(-4) when the resolution of the measurement of the angle is ~0.04 degrees . Both the theory and the experiment are demonstrated.
Review article: overview of medical treatments in unresectable hepatocellular carcinoma—an impossible meta‐analysis? (1998)

No treatment has clearly proven efficacy in survival. 5-Fluorouracil, adriamycin and transarterial chemotherapy were not associated with survival benefit at 1 year. The number of randomized controlled trials was insufficient to enable a conclusion to be reached for interferon and percutaneous ethanol injection. Controversy persists concerning tamoxifen efficacy. Interferon and tamoxifen require new randomized controlled trials on a larger population of patients.
Serum Insulin-like Growth Factors and Insulin-like Growth Factor-binding Proteins: Clinical Implications (1999)

The last decade has been characterized by a major investigative thrust into the physiology of two unique but ubiquitous peptides, insulin-like growth factor (IGF)-I and IGF-II. The regulatory systems that control the tissue bioactivity of the IGFs have been delineated, and subcellular signaling mechanisms have been clarified. Clearly, both tissue and circulating growth factor concentrations are important in defining the relationship between IGF-I and cell activity. Bone, liver, and circulatory IGF-I have received the most attention by investigators, in part because of the ease of measurement and the interaction with disease states such as osteoporosis. More recently, attention has focused on the role IGF-I plays in neoplastic transformation and growth. Two large prospective observational studies have demonstrated greater risk for prostate and breast cancer associated with high circulating concentrations of IGF-I. Animal models and in vitro studies confirm that there is a close, albeit complex, interaction between IGF-I signaling and bone turnover. This report will focus on: (a) IGF physiology, including IGF ligands, binding proteins, and proteases; (b) the relationship between IGF-I and bone mass in respect to risk for osteoporosis; (c) the heritable regulation of the IGF-I phenotype; and (d) the association between serum IGF-I and cancer risk. The IGFs remain a major area for basic and clinical investigations; future studies may define both diagnostic and therapeutic roles for these peptides or their related proteins in several disease states.