gebhart/patrepeval huggingface dataset:
Influence of grafting formulations and extrusion conditions on properties of silane-grafted polypropylenes (2000)

The melt grafting of unsaturated silanes onto powdered polypropylene (PP) in a Haake TW100 twin-screw extruder and curing in hot water were studied. The influence of grafting formulations and extrusion conditions on the melt flow rates of grafted PP and the gel percentages of crosslinked PP was investigated. The gel percentages of methacryloylpropyltrimethoxysilane (VMMS)-grafted PP were markedly higher than those of vinyltriethoxysilane (VTES)- and vinyltrimethoxysilane (VTMS)-grafted PP, while significantly less degradation of PP during grafting was observed for VMMS-grafted PP. When benzoyl peroxide (BPO) was used as an initiator, no degradation of PP during grafting was observed, and the melt flow rates of grafted PP decreased with increasing BPO concentration. In contrast, use of dicumyl peroxide (DCP) as an initiator resulted in severe degradation of PP, and the melt flow rates of grafted PP increased gradually with increasing DCP concentration. BPO resulted in higher gel percentages than those of DCP at a fixed initiator concentration. Introduction of styrene into the grafting system greatly improved the gel percentage of crosslinked PP and reduced the degradation of PP during grafting. The optimum molar ratio of styrene to monomer is at about 1.5:1. Relatively low processing temperatures and high screw speeds are favorable. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 78: 1233–1238, 2000
Large-Scale Search of Single Nucleotide Polymorphisms for Hepatocellular Carcinoma Susceptibility Genes in Patients With Hepatitis C * (2005)

Hepatitis C virus (HCV) infection is a major risk factor for developing hepatocellular carcinoma (HCC). The host genetic factors that are involved in the development of HCC in patients with HCV infection remain to be investigated. To search for single nucleotide polymorphisms (SNPs) in HCC susceptibility genes, 393 SNPs in 171 candidate genes were examined in 188 Japanese patients with chronic HCV infection, including 77 patients with HCC. HCC-related SNPs were then examined in another 188 patients (including 93 patients with HCC) with chronic HCV infection. Haplotype analyses of HCC-related genes were performed in a total of 376 patients. Of the 393 SNPs, 31 SNPs in 29 genes were significantly associated with HCC based on an initial screening (P < .05). Of these 31 SNPs, 3 SNPs of 3 genes (SCYB14, GFRA1, and CRHR2) were significantly associated with HCC in a secondary screening. Haplotype analyses of these 3 genes identified 2 haplotype blocks associated with HCC. In conclusion, these SNPs and haplotypes located in the SCBY14, CRHR2, and GFRA1 genes will be used as markers to identify a subgroup of Japanese patients with chronic HCV infection who are at high risk of developing HCC.
Predicting student emotions in computer-human tutoring dialogues (2004)

We examine the utility of speech and lexical features for predicting student emotions in computer-human spoken tutoring dialogues. We first annotate student turns for negative, neutral, positive and mixed emotions. We then extract acoustic-prosodic features from the speech signal, and lexical items from the transcribed or recognized speech. We compare the results of machine learning experiments using these features alone or in combination to predict various categorizations of the annotated student emotions. Our best results yield a 19-36% relative improvement in error reduction over a baseline. Finally, we compare our results with emotion prediction in human-human tutoring dialogues.
Fingerprint of vortex-like flux closure in isotropic Nd-Fe-B bulk magnet (2023)

Taking advantage of recent progress in neutron instrumentation and in the understanding of magnetic-field-dependent small-angle neutron scattering, here, we study the three-dimensional magnetization distribution within an isotropic Nd-Fe-B bulk magnet. The magnetic neutron scattering cross section of this system features the so-called spike anisotropy, which points towards the presence of a strong magnetodipolar interaction. This experimental result combined with a damped oscillatory behavior of the corresponding correlation function and recent micromagnetic simulation results on spherical nanoparticles suggest an interpretation of the neutron data in terms of vortex-like flux-closure patterns. The field-dependent correlation length Lc is well reproduced by a phenomenological power-law model. While the experimental neutron data for Lc are described by an exponent close to unity (p = 0.86), the simulation results yield p = 1.70, posing a challenge to theory to include vortex-vortex interaction effects.
[Biochemical activity in peritoneal effusion of ovarian malignancy]. (1986)

This study was provided biochemical findings on ascitic fluid following the treatment of patients with ovarian tumors. The results were as follows: LDH and LDH isozyme. The ascitic fluid from patients with germ cell tumors showed an LDH1 value of 38.8% with an H/M ratio of 2.82, which were significantly higher than those found in the benign tumor group (LDH1, 15.2%: H/M ratio, 1.05). In cases of adenocarcinomas, the LDH5 value was 27.2%, compared to 15.7% in cases of benign tumors. Of 28 patients with adenocarcinoma, 15 patients (53.6%) were positive for this elevation. The decline in total LDH activity and elevation of H/M ratio were observed as a general tendency in patients satisfactorily responding to treatment. ALP and ALP isozyme. The malignant tumor group displayed higher values for both total ALP activity and HSAP in ascitic fluid, as compared with the benign tumor group. In the malignant tumor group, alpha 2 and alpha 2-beta regions were prominent in the isozyme pattern and the isozymes of the same regions remained even after inactivation by heat. The total activity decreased significantly in the responders to treatment. TP, alpha 1-AT, alpha 1-AG, alpha 2-M and IgG. The ascitic fluid levels of alpha 1-AT, alpha 2-M and IgG did not significantly differ among the group of patients with germ cell tumors, the group of patients with ovarian gonadal stroma and the group of patients with benign tumors. In the adenocarcinoma group the alpha 1-AT and alpha 2-M levels were higher than those in the benign tumor group. The ascitic fluid alpha 1-AG level and alpha 1-AG/TP ratio were elevated in tumors of germ cell origin and in adenocarcinomas; they tended to correlate with the degree of malignancy of the tumor. The results of the present study suggest that simultaneous measurement of the ascitic fluid levels of LDH isozymes, ALP isozymes, alpha 1-AG, alpha 1-AT, alpha 2-M and IgG may play a potential adjunctive role in providing information for diagnostic differentiation between benign and malignancy, estimation of the histologic type and extent of neoplastic growth, evaluation of the therapeutic response and prediction of the clinical progress.
Application of flow injection?chemiluminescence to the study of radical scavenging activity in plants (2000)

Chemiluminescence (CL) was observed during the oxidation of luminol (2 mg/L). mediated by 0.06% hydrogen peroxide (H(2)O(2)) and cytochrome c (10 mg/L). CL intensity was decreased by the presence of radical scavengers and the reduction was linearly proportional to the concentration and ability of scavengers; butylated hydroxytoluene (BHT), caffeic acid and gallic acid. The order of effectiveness as radical scavengers was gallic acid > caffeic acid > BHT, which shows that the number of hydroxyl groups (OH) in the B-ring of flavonoids plays a key role in a good radical scavenging activity. Of eight catechins obtained from green tea extracts, (-)-catechin was the least effective and (-)-epigallocatechin gallate (EGCg) showed the strongest activity. This result indicates that the stereoscopic structure between the C-3 group and the B ring of flavonoids as well as substituents at the C-3 position make a contribution to radical scavenging activity. Of the tested Chinese herbal ingredients, five species of ingredients represented more than 90% of the radical scavenging activity.
On the scaling of air launch vehicles (2011)

The purpose of this paper is to introduce a set of scaling laws for the preliminary design of air launch vehicles. Scaling laws have been successfully used for the early stages of preliminary design of aerospace vehicles. A set of scaling laws for the preliminary design of air launch vehicle are derived from first principles. The scaling laws are then compared against a pseudodetailed air launch vehicle design model. The trends of vehicle design and performance parameters with payload mass reduction are investigated. In the paper, scaling laws of air launch vehicles based on first principles are introduced for the first time in the aerospace literature to the authors’ knowledge.
Collective Optimization of Sun-Tracking Trajectories (2011)

This paper presents a tool for designing new photovoltaic power plants based on a collective optimization of the tracking trajectory of the sun‐tracking systems. The presented tool can also be used to improve production in existing tracking power plants.By analyzing an array of Sun‐tracking systems as a collective system, an optimization model was developed to determine the individual positions for each tracker along the day, which render the maximum global output for the array. This improvement in global output, relative to the same array without optimized positions, is achieved by minimizing the amount of shadow, cast on some systems by others, due to their relative position and location.Based on the premise that, by using collectively optimized movements for the sun trackers, the same global output can be obtained in a smaller installation area, a design tool was created to compute a production performance parameter for different inter system distances, which can then be crossed with installation cost information to obtain the most cost effective locations for each system on a sun tracking photovoltaic power plant.
X-ray structures of quinone dimers linked either directly or through acetylene spacers (2008)

1,3-oxazole is a very useful intermediate synthetic organic material for the synthesis of imidazole that possess a wide spectrum of biological activities such as herbicides, antibacterial, antifungal, etc. In addition, the oxazole itself is also found to possess antibacterial and antifungal activities. In view of this, the crystal structure of title compound has been determined.The yellow colored, block shaped crystals of size 0.3 0.3 0.2 mm 3 were grown by slow evaporation from the benzene solution.The compound crystallizes in to triclinic system having space group P-1. The crystal data are: a = 7.3732( , c = 8.1325(8) , = 62.085(7) = 82.506(7), = 91.954(6), Z = 2, = 0.100 mm -1 , Dx = 1.367 Mg-m -3 . Intensity data on BRUKER AXS KAPPA APEX2 CCD diffractometer are collected in and scan with ranging from 2.53 to 25.0 and 2885 unique reflections are recorded. The structure is solved by SIR92 program and refined by SHELXL-97 program to final R-value of 0.0597 for 2114 reflections with I >2(I).In the structure, all the three rings are planar within themselves, and the benzene ring and benzylidene moiety making a dihedral angle of 11.23(15) and 3.19(14) respectively. An intermolecular C-H...O interaction forms a dimmer that exhibit R 2 2(14) graph-set motif. In addition crystal structure is stabilized by C-H... and - stacking interactions.
An algorithm for finding carriers of amplitude-modulated electromagnetic emanations in computer systems (2016)

This paper presents an algorithm for identifying carriers of amplitude-modulated electromagnetic (EM) emanations from computer systems. Computer systems create EM emanations across the RF spectrum making it difficult, error-prone, and time-consuming to find the relatively few emanations that expose sensitive information. One of the most common and simplest mechanisms for information leakage occurs when the amplitude of an existing strong signal (e.g. a processor or memory clock) is amplitude modulated by a system activity. If the system activity can be linked to sensitive information, this results in information leakage. We present an algorithm for finding these AM modulated signals, demonstrate the algorithm's performance on several different types of processors and systems (desktops, laptops, and smartphones), and compare the results to an exhaustive manual search. We also verify that all signals identified by the algorithm can be traced to plausible unintentional modulation mechanisms to illustrate that these signals can potentially cause information leakage. This algorithm can be an important tool for hardware designers to quickly identify circuits that are leaking sensitive information.
Quality of life and pain in premenopausal women with major depressive disorder: The POWER Study (2006)

Women with depression experienced pain more frequently than controls, had a lower quality of life, and complained more of daily stressors. Assessment of pain may be important in the clinical evaluation of women with MDD. SP and CGRP may be useful biological markers in women with MDD.
Quantitative Real-Time PCR Assays To Identify and Quantify Fecal Bifidobacterium Species in Infants Receiving a Prebiotic Infant Formula (2005)

A healthy intestinal microbiota is considered to be important for priming of the infants' mucosal and systemic immunity. Breast-fed infants typically have an intestinal microbiota dominated by different Bifidobacterium species. It has been described that allergic infants have different levels of specific Bifidobacterium species than healthy infants. For the accurate quantification of Bifidobacterium adolescentis, Bifidobacterium angulatum, Bifidobacterium bifidum, Bifidobacterium breve, Bifidobacterium catenulatum, Bifidobacterium dentium, Bifidobacterium infantis, and Bifidobacterium longum in fecal samples, duplex 5' nuclease assays were developed. The assays, targeting rRNA gene intergenic spacer regions, were validated and compared with conventional PCR and fluorescent in situ hybridization methods. The 5' nuclease assays were subsequently used to determine the relative amounts of different Bifidobacterium species in fecal samples from infants receiving a standard formula or a standard formula supplemented with galacto- and fructo-oligosaccharides (OSF). A breast-fed group was studied in parallel as a reference. The results showed a significant increase in the total amount of fecal bifidobacteria (54.8% +/- 9.8% to 73.4% +/- 4.0%) in infants receiving the prebiotic formula (OSF), with a diversity of Bifidobacterium species similar to breast-fed infants. The intestinal microbiota of infants who received a standard formula seems to resemble a more adult-like distribution of bifidobacteria and contains relatively more B. catenulatum and B. adolescentis (2.71% +/- 1.92% and 8.11% +/- 4.12%, respectively, versus 0.15% +/- 0.11% and 1.38% +/- 0.98% for the OSF group). In conclusion, the specific prebiotic infant formula used induces a fecal microbiota that closely resembles the microbiota of breast-fed infants also at the level of the different Bifidobacterium species.
A Role for DNA Hypomethylation and Histone Acetylation in Maintaining Allele-Specific Expression of Mouse NKG2A in Developing and Mature NK Cells (2006)

The repertoire of receptors that is expressed by NK cells is critical for their ability to kill virally infected or transformed cells. However, the molecular mechanisms that determine whether and when NK receptor genes are transcribed during hemopoiesis remain unclear. In this study, we show that hypomethylation of a CpG-rich region in the mouse NKG2A gene is associated with transcription of NKG2A in ex vivo NK cells and NK cell lines. This observation was extended to various developmental stages of NK cells sorted from bone marrow, in which we demonstrate that the CpGs are methylated in the NKG2A-negative stages (hemopoietic stem cells, NK progenitors, and NKG2A-negative NK cells), and hypomethylated specifically in the NKG2A-positive NK cells. Furthermore, we provide evidence that DNA methylation is important in maintaining the allele-specific expression of NKG2A. Finally, we show that acetylated histones are associated with the CpG-rich region in NKG2A positive, but not negative, cell lines, and that treatment with the histone deacetylase inhibitor trichostatin A alone is sufficient to induce NKG2A expression. Treatment with the methyltransferase inhibitor 5-azacytidine only is insufficient to induce transcription, but cotreatment with both drugs resulted in a significantly greater induction, suggesting a cooperative role for DNA methylation and histone acetylation status in regulating gene expression. These results enhance our understanding of the formation and maintenance of NK receptor repertoires in developing and mature NK cells.
Integrated spot-size converters for alignment tolerant optical fiber coupling based on ARROW waveguides (2003)

El trabajo tratado en la tesis presenta el estudio, diseno y caracterizacion de distintos dispositivos fotonicos de optica integrada. En el se ha investigado sobre nuevas estructuras con bajas perdidas y aplicadas tanto en nuevos tipos de dispositivos integrados de haz expandido como en la implementacion de curvaturas en guia-ondas, principalmente. Los nuevos convertidores de tamanos de spotxmil disenados y fabricados presentan unas buenas caracteristicas. Basicamente, los CTS realizados se basan en dos tipos de estructuras. La primera de ellas utiliza guia-ondas opticas reflexivas verticales y antiresonantes del tipo ARROW. En la segunda, las guia-ondas no solo favorecen el confinamiento vertical sino que tambien el lateral.
Los dispositivos llevados a cabo se han realizado utilizando InP-InGaAsP como material de fabricacion para la posterior utilizacion de estos dispositivos en la tercera ventana de telecomunicaciones. Asimismo, la principal caracteristica de los dispositivos de haz expandido desarrollados es que se han realizado creciendo una nueva unica capa epitaxial con un unico paso de grabado.
De esta forma se consiguen dispositivos de bajo coste y faciles de fabricar.
Inhibition of MDM2-mediated p53 Ubiquitination and Degradation by Ribosomal Protein L5 (2004)

The oncoprotein MDM2 associates with ribosomal proteins L5, L11, and L23. Both L11 and L23 have been shown to activate p53 by inhibiting MDM2-mediated p53 suppression. Here we have shown that L5 also activates p53. Overexpression of L5 stabilized ectopic p53 in H1299 cells and endogenous p53 in U2OS cells. Consequently, L5 enhanced p53 transcriptional activity and induced p53-dependent G1 cell cycle arrest. Furthermore, like L11 and L23, L5 also remarkably inhibited MDM2-mediated p53 ubiquitination. The interaction of L5 with MDM2 was also enhanced by treatment with a low dose of actinomycin D. Actinomycin D-induced p53 was inhibited by small interference RNA against L5. By reciprocal co-immunoprecipitation, we further showed that there were at least two MDM2-ribosomal protein complexes in cells: MDM2-L5-L11-L23 and p53-MDM2-L5-L11-L23. We propose that the MDM2-L5-L11-L23 complex functions to inhibit MDM2-mediated p53 ubiquitination and thus activates p53.
Predicting organoleptic scores of sub-ppm flavour notes.Part 1. Theoretical and experimental details (1998)

Most existing electronic nose systems have limited commercial application since they only provide a relative description of the flavour under investigation, rather than one against a universal standard. However, the development of a set of universally accepted standards for flavour description has been problematic due to the lack of any comprehensive model relating the molecular structure of an odorant with its flavour-impact during the act of perception. Instead, industries have tended to develop their own flavour models (flavour terminology systems) for specific consumer products that are based upon practical experience of a particular foodstuff, cosmetic, or beverage. We report here on the novel application of chemical multi-sensor arrays to the prediction of organoleptic flavour notes, as defined under a specific terminology system suitable for describing and communicating specific flavours. A novel odour mapping scheme is proposed that may be applied generally to multi-sensor arrays and provides more detailed characterisation of odour quality than is currently achievable. As part of our study, a flow injection analyser (FIA) system has been developed that combines chemical and electronic hardware driven by a microcomputer to achieve accurate and independent control over odour-stream temperature, flow-rate and flow profile, sensor head temperature, and sample times. An array of 24 conducting polymer sensors (11 different types) is used within the FIA system giving an overall experimental coefficient of variation below 7%. The application of this odour mapping technique is demonstrated by way of an experimental study, using the FIA system reported here. The details for this study are given in Part 1, and the computational analysis of the data is carried out in Part 2 (T. C. Pearce and J. W. Gardner, Analyst, 1998, 123, 2057.
Accurate off-line phase classification for HW/SW co-designed processors (2014)

Evaluation techniques in microprocessor design are mostly based on simulating selected application's samples using a cycle-accurate simulator. These samples usually correspond to different phases of the application stream. To identify these phases, relevant high-level application statistics are collected and clustered using a process named "Off-Line Phase Classification". The purpose of phase classification is to reduce the number of samples that need to be simulated with the minimum loss in accuracy (compared to simulating the complete set of samples).
2018: The 90th Volume of Analytical Chemistry and Still Growing (2017)

ADVERTISEMENT RETURN TO ISSUEEditorialNEXT2018: The 90th Volume of Analytical Chemistry and Still GrowingJonathan V. SweedlerCite this: Anal. Chem. 2017, 89, 23, 12617Publication Date (Web):December 5, 2017Publication History Published online5 December 2017Published inissue 5 December 2017https://pubs.acs.org/doi/10.1021/acs.analchem.7b04750https://doi.org/10.1021/acs.analchem.7b04750editorialACS PublicationsCopyright © 2017 American Chemical Society. This publication is available under these Terms of Use. Request reuse permissions This publication is free to access through this site. Learn MoreArticle Views915Altmetric-Citations-LEARN 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 PDF (213 KB) Get e-AlertscloseSUBJECTS:Analytical chemistry,Chemical engineering and industrial chemistry Get e-Alerts