gebhart/patrepeval huggingface dataset:
Reactions of xenon difluoride with the pentafluorides of tantalum, niobium, ruthenium, and osmium (1969)

The reactions of xenon difluoride with the pentafluorides of tantalum, niobium, ruthenium, and osmium are described. The adducts XeF2,TaF5, XeF2,2TaF5, XeF2,NbF5, and XeF2,2NbF5 were prepared by the thermal reaction of the component molecules. The reaction stoicheiometries and thermal decompositions of the adducts have been studied and some of their physical properties are reported. Evidence for the formation of XeF2,RuF5 and XeF2,2RuF5 has also been obtained. The reaction of osmium pentafluoride with xenon difluoride produces a complex mixture of compounds, one of which is the adduct XeF2,OsF5.The adducts obtained are compared with other analogous xenon difluoride–pentafluoride adducts and suggestions regarding their formulation and structure are made.Attempts to prepare and isolate xenon tetrafluoride adducts with niobium, tantalum, and ruthenium pentafluorides have failed.
Single-ended Differential RF Circuit Topologies Utilizing Complementary MOS Devices (2002)

Abstract − Single-ended differential RF circuit topologies fully utilizing complementary characteristics of both NMOS and PMOS are proposed, which have inherent advantage of both single-ended and differential circuits. Using this concept, we propose a CCPP (Complementary CMOS parallel push-pull) amplifier which has single-ended input/output with differential amplifying characteristics, leading to more than 30 dB improvement on IIP2. In addition, complementary resistive mixer is also proposed, which provides not only differential IF outputs from single-ended RF input, but much better linearity as well as isolation characteristics. Experimental results using 0.35 µm CMOS process show that, compared with conventional NMOS resistive mixer, the proposed mixer shows 15 dB better LO-to-IF isolation, 4.6 dB better IIP2, and 4.5 dB better IIP3 performances.
Electrochemical and enzymatic activity of flavin adenine dinucleotide and glucose oxidase immobilized by adsorption on carbon (1984)

Flavin adenine dinucleotide (FAD) and glucose oxidase were adsorbed on medium porosity spectroscopic graphite (SG) and on low porosity glassy carbon (GC) with retention of electrochemical activity, as measured by cyclic and differential pulse voltammetry. Adsorption on the SG was very strong, while that on GC was much weaker. Enzyme activity could be partially restored by the addition of the apoenzyme of glucose oxidase to the SG-adsorbed FAD preparation. The holoenzyme of glucose oxidase also was adsorbed on SG with retention of enzyme activity. The mechanism for the reconstitution of active enzyme from adsorbed FAD and soluble apoenzyme is not clear. The data suggest that the reconstituted enzyme stays adsorbed to the SG, but it is not clear whether the FAD or protein portions (or both) are adsorbed after reconstitution. The data also indicate that substrate mass transfer resistance may be important with the reconstituted-adsorbed enzyme.
New Surgical Repair for an Anomalous Origin of the Left Coronary Artery Adjacent to the Pulmonary Cusps with Numerous Large Side Branches (1990)

A new surgical procedure for anatomical correction of an anomalous origin of the left main coronary artery (LCA) from the pulmonary artery is described for those patients in whom the origin of the LCA is located adjacent to a pulmonary cusp and several side branches are arising immediately behind the ostium of the LCA. Hence the LCA can not be disconnected from the pulmonary artery for either coronary arterial transfer or bypass grafting. A tunnel-type repair may interfere with the movement of the pulmonary leaflets. In those cases our proposed surgical correction consists of an arteriotomy of the pulmonary trunk, end-to-end anastomosis of a vein graft to the ostium of the LCA and its implantation into the ascending aorta. The resulting defect in the pulmonary artery is closed with a pericardial patch avoiding kinking or stenosis of the pulmonary trunk.
Cross‐Cultural Aesthetics (2018)

The meaning of “cross‐cultural aesthetics” is ambiguous. It may mean the admiration of the artistic forms (such as performance, literature, or painting) of another culture or an area of inquiry into the nature of aesthetic appreciation across different cultures. This ambiguity has led to significant debates within anthropology concerning the suitability of the category of aesthetics as a field of inquiry. Anthropologists have argued that the category of aesthetics is required to explain the existence of ornamentation and the emergence of artistic forms, and in order to explore the qualitative features of material culture and its connection to cultural forms. However, anthropologists are divided between, on the one hand, the position that all people have aesthetic experience and that all cultures have some kind of art and, on the other, the position that art and aesthetic appreciation are specific to Western societies.
3.5 ns pulse duration mJ level Ho:YAG laser (2021)

Gain switched Ho:YAG laser at 2090 nm with 3.5 ns pulse duration, 0.82 mJ pulse energy at 0.67kHz is presented, this short pulse duration is achieved by using high energy, passively Q- switched Tm:YLF laser tuned to Ho:YAG absorption peak.
Multi-Robot Path Planning Using Medial-Axis-Based Pebble-Graph Embedding (2022)

We present a centralized algorithm for labeled, disk-shaped Multi-Robot Path Planning (MPP) in a continuous planar workspace with polygonal boundaries. Our method automatically transform the continuous problem into a discrete, graph-based variant termed the pebble motion problem, which can be solved efficiently. To construct the underlying pebble graph, we identify inscribed circles in the workspace via a medial axis transform and organize robots into layers within each inscribed circle. We show that our layered pebble-graph enables collision-free motions, allowing all graph-restricted MPP instances to be feasible. MPP instances with continuous start and goal positions can then be solved via local navigations that route robots from and to graph vertices. We tested our method on several environments with high robot-packing densities (up to 61.6% of the workspace). For environments with narrow passages, such density violates the well-separated assumptions made by state-of-the-art MPP planners, while our method achieves an average success rate of 83%.
Applications of whole-genome high-density SNP genotyping (2005)

The technology to simultaneously genotype hundreds of thousands of single nucleotide polymorphisms in a single assay has only recently been developed. These advances have the potential to revolutionize our ability to identify disease-associated proteins and their corresponding pathways as drugable targets. Several strategies that can take advantage of extremely high-density, genome-wide single nucleotide polymorphism genotyping to hone in on pathogenic genetic variants will be discussed. In familial linkage studies, high-density single nucleotide polymorphism genotyping has already been proven to speed up mutation identification of Mendelian traits several fold. Many studies now report examining loss of heterozygosity and genomic amplifications on a whole-genome level. Genotyping hundreds of thousands of single nucleotide polymorphisms in a single set of assays now also allows for whole-genome association studies in complex, multigenic diseases. The technology of high-density single nucleotide polymorphism genotyping has emerged rapidly, leaving data analysis and bioinformatic challenges only partially met. In this review, the immediate applications and implications of the rapidly changing high-density, whole-genome single nucleotide polymorphism genotyping field on translational research will be described.
The 13C4 Monoclonal Antibody That Neutralizes Shiga Toxin Type 1 (Stx1) Recognizes Three Regions on the Stx1 B Subunit and Prevents Stx1 from Binding to Its Eukaryotic Receptor Globotriaosylceramide (2006)

The 13C4 monoclonal antibody (MAb) recognizes the B subunit of Stx1 (StxB1) and neutralizes the cytotoxic and lethal activities of Stx1. However, this MAb does not bind to the B polypeptide of Stx2, despite the 73% amino acid sequence similarity between StxB1 and StxB2. When we compared the amino acid sequences of StxB1 and StxB2, we noted three regions of dissimilarity (amino acids 1 to 6, 25 to 32, and 54 to 61) located near each other on the crystal structure of StxB1. To identify the 13C4 epitope, we generated seven Stx1/Stx2 B chimeric polypeptides that contained one, two, or three of the dissimilar StxB1 regions. The 13C4 MAb reacted strongly with StxB1 and the triple-chimeric B subunit but not with the other chimeras. Mice immunized with the triple-chimeric B subunit survived a lethal challenge with Stx1 but not Stx2, substantiating the identified regions as the 13C4 MAb epitope and suggesting that the incorporation of this epitope into StxB2 altered sites necessary for anti-Stx2-neutralizing Ab production. Next, single amino acid substitutions were made in StxB1 to mimic Stx1d, a variant not recognized by the 13C4 MAb. The 13C4 MAb reacted strongly to StxB1 with the T1A or G25A mutations but not with the N55T change. Finally, we found that the 13C4 MAb blocked the binding of Stx1 to its receptor, globotriaosyl ceramide. Taken together, these results indicate that the 13C4 MAb prevents the interaction of Stx1 with its receptor by binding three nonlinear regions of the molecule that span receptor recognition sites on StxB1, one of which includes the essential residue 55N.
Myeloid Toxicity in Breast Cancer Patients Receiving Adjuvant Chemotherapy With Pegfilgrastim Support (2006)

In the discussion of the article by Hutchins et al 1 it is stated that both the hazard ratios for disease-free survival and overall survival show a narrow advantage for cyclophosphamide, doxorubicin, and fluorouracil that was not as strong as had been hypothesized. Furthermore, it was stated that the two-sided statistical test was not statistically significant. Later in the discussion, it is stated that the benefit seen in hormone receptor-positive patients was dramatic. It is clear that the disease-free survival is 6% different in favor of tamoxifen in the hormone receptor-positive patients, but this difference appears to be largely due to a reduction in opposite breast recurrences. Moreover, the difference in overall survival is exactly the same as the difference between cyclophosphamide, methotrexate, and fluorouracil and cyclophosphamide, doxorubicin, and fluorouracil, which is 82% with no tamoxifen versus 85% with tamoxifen. There was a one-sided P test, which was significant, but there is no discussion of the two-sided P test. In fact, it appears that if you treat hormonepositive, node-negative breast cancer with chemotherapy the effect of tamoxifen on survival is minimal.
Is lGnRH‐III the most potent GnRH analog containing only natural amino acids that specifically inhibits the growth of human breast cancer cells? (2006)

Analogs of the decapeptide, gonadotropin-releasing hormone (GnRH), used in the treatment of hormone-dependent tumors, contain numerous unnatural amino acids, giving rise to many adverse effects. lGnRH-III, a natural isoform of GnRH isolated from the sea lamprey, is a weak agonist of GnRH in the pituitary, but inhibits the growth of human cancer cells in micromolar concentrations. As lGnRH-III is not a natural ligand in humans, it is possible that a more potent peptide, also containing only natural amino acids, can be synthesized. A positional scanning peptide library, focused on the variable region of the GnRH family of peptides, residues 5-8, was synthesized. The synthesized peptides were analyzed in competitive binding experiments and six new analogs were designed on the basis of the results. Their biological activities were evaluated in cell growth experiments. The only natural sequence selected was chicken GnRH-II. The synthetic library did not yield a more potent peptide than lGnRH-III.
Recent progress on phosphonate vinyl monomers and polymers therefore obtained by radical (co)polymerization (2011)

This review paper gathers almost one hundred recent publications devoted to the synthesis and the free radical (co)polymerization of phosphonate vinyl monomers. Different synthetic approaches are discussed to introduce the phosphonate moieties into vinyl monomers, focusing especially on recent advances. Allyl-type, vinyl-type, styrenic-type and (meth)acrylic-type monomers bearing phosphonate groups (i.e. either mono or bisphosphonate) are considered with a special care about their reactivity in free radical (co)polymerization. It is shown that depending on the position of the phosphonate moieties the reactivity of the vinyl monomers is thus modified. For instance, free radical polymerization of vinyl phosphonate monomers is mainly dominated by transfer reactions, whereas the propagation rate of para-vinylbenzyl phosphonate monomers is enhanced by the phosphonate group. According to the structure of the phosphonate-bearing (co)polymers, the resulting properties are also investigated.
One-Step Synthesis of Pyrido[1,2-a]benzimidazole Derivatives by a Novel Multicomponent Reaction of Chloroacetonitrile, Malononitrile, Aromatic Aldehyde, and Pyridine (2008)

Polysubstituted pyrido[1,2-a]benzimidazole derivatives are efficiently produced in moderate yields in a novel one-pot, four-component reaction from pyridine or 3-picoline, chloroacetonitrile, malononitrile, and aromatic aldehyde in refluxing acetonitrile. The mechanism of this novel reaction was believed involving the formation of polysubstituted benzenes with subsequent substitution and annulation reaction of pyridine. All pyrido[1,2-a]benzimidazoles, polysubstituted benzenes, polysubstituted indoles, and some key reaction intermediates are characterized by (1)H and (13)C NMR, MS, IR spectra, and elemental analysis as well as X-ray crystallography.
Coupling Sensing Hardware with Data Interrogation Software for Structural Health Monitoring (2006)

The process of implementing a damage detection strategy for aerospace, civil and mechanical engineering infrastructure is referred to as structural health monitoring (SHM). The authors′ approach is to address the SHM problem in the context of a statistical pattern recognition paradigm. In this paradigm, the process can be broken down into four parts: (1) Operational Evaluation, (2) Data Acquisition and Cleansing, (3) Feature Extraction and Data Compression, and (4) Statistical Model Development for Feature Discrimination. These processes must be implemented through hardware or software and, in general, some combination of these two approaches will be used. This paper will discuss each portion of the SHM process with particular emphasis on the coupling of a general purpose data interrogation software package for structural health monitoring with a modular wireless sensing and processing platform. More specifically, this paper will address the need to take an integrated hardware/software approach to developing SHM solutions.
Enecarbamates as Imine Surrogates:  Nucleophilic Addition of 1,3-Dicarbonyl Compounds to Enecarbamates (2006)

[reaction: see text] Novel Mannich-type reactions of 1,3-dicarbonyl compounds with enecarbamates have been developed. Stable and storable enecarbamates work as surrogates of aliphatic aldehyde-derived imines, which are known to be difficult to isolate and store.
Artificial Mosaic Generation with Gradient Vector Flow and Tile Cutting (2013)

Mosaics are images obtained by cementing together small colored fragments and are an ancient example of discrete primitive-based images. Artificial mosaics are illustrations composed by a set of small images called “tiles” that tessellate a source image aiming to reproduce the original visual information in a mosaic-like style. In this paper, we propose a mosaic generation technique based on gradient vector flow (GVF) together with a set of tile cutting heuristics evaluated according to aesthetic criteria. The effectiveness of the proposed approach has been confirmed by a series of tests and comparisons with state-of-the-art techniques.
Notice of Retraction: Research on identification of coal and waste rock based on PCA and GA-ANN (2010)

This article has been retracted by the publisher.
Prediction of Limit Strains in Limiting Dome Height Formability Test (2007)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Amir A. Zadpoor, Jos Sinke, Rinze Benedictus; Prediction of Limit Strains in Limiting Dome Height Formability Test. AIP Conf. Proc. 7 April 2007; 907 (1): 258–263. https://doi.org/10.1063/1.2729521 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAIP Publishing PortfolioAIP Conference Proceedings Search Advanced Search |Citation Search
A state‐of‐the‐art review on the impact of fast EV charging on the utility sector (2021)

Abstract Deployment of fast‐charging stations for electrified transportation is currently one of the limiting factors in the commercial deployment and paradigm shift of the mobility sector. The rapidly increasing demand for electric vehicles (EVs) brings the demand for accessible and affordable charging infrastructure. The commercial EV fast‐charging load profile depends on the customer's EV charging demand, which poses challenges in determining the overall peak profile. This could lead to unprecedented challenges of harmonic disruption, system losses, supply‐demand balance, and grid reliability. The emergence of bidirectional charging infrastructure and the realization of controlled charging strategies in coordination with the cumulative contribution of renewable energy resources could potentially reduce the challenge of utility grid stability and reliability shortly. Furthermore, the parallel development of smart grid technologies has promising features. This paper aims to provide a comprehensive state‐of‐the‐art review of the major challenges of the utility grid in the swift adoption of fast charging infrastructures available in the open literature, as well as the sustainable implications and potential safety measures. Furthermore, the potential solutions and best practices for the synchronization of electrified transportation with the emerging ecosystem of renewable power systems and various controlled charging strategies are reviewed in detail.
Differential Response to Neoadjuvant Chemotherapy Among 7 Triple-Negative Breast Cancer Molecular Subtypes (2013)

Classifying TNBC by 7 subtypes predicts high versus low pCR rate. We confirm the clinical relevancy of the 7 subtypes of TNBC. We need to prospectively validate whether the pCR rate differences translate into long-term outcome differences. The 7-subtype classification may spur innovative personalized medicine strategies for patients with TNBC.
All about us (1998)

Topic Starters are part of the Fact Finders series, the non-fiction component of the Oxford Reading Tree. The books introduce non-fiction to pre-readers and very early readers in Nursery and Reception/Year 1 in a simple, accessible form. They can also be used for special needs students. Topic Starters are child-centred discussion books which provide the opportunities to research questions and develop knowledge and information retrieval skills while learning topic vocabulary. Each title links to a title in the Fact Finders ABC series and More ABC series titles: myself, families, clothes, people, houses and homes, schools.
Numerical and Experimental Study of Unsteady Flow Field and Vibration in Radial Inflow Turbines (1999)

The blades of turbocharger impellers are exposed to unsteady aerodynamic forces, which cause blade vibrations and may lead to failures. An indispensable requirement for a safe design of radial inflow turbines is a detailed knowledge of the exciting forces. Up to now, only few investigations relating to unsteady aerodynamic forces in radial turbines were presented. To give a detailed insight into the complex phenomena, a comprehensive research project was initiated at the Institut für Thermische Strömungsmaschinen, at the University of Karlsruhe. A turbocharger test rig was installed in the high pressure, high temperature laboratory of the institute. The present paper gives a description of the test rig design and the measuring techniques. The flow field in a vaneless radial inflow turbine was analyzed using laser Doppler anemometry. First results of unsteady flow field investigations in the turbine scroll and unsteady phase resolved measurements of the flow field in the turbine rotor will be discussed. Moreover, results from finite element calculations analyzing frequencies and mode shapes are presented. As vibrations in turbines of turbochargers are assumed to be predominantly excited by unsteady aerodynamic forces, a method to predict the actual transient flow in a radial turbine utilizing the commercial Navier Stokes solver TASCflow3d was developed. Results of the unsteady calculations are presented and comparisons with the measured unsteady flow field are made. As a major result, the excitation effect of the tongue region in a vaneless radial inflow turbine can be demonstrated.
<title>Production And Testing Of Aspheric Surfaces State Of The Art In The Federal Republic Of Germany</title> (1983)

This paper gives a survey of the activities in the Federal Republic of Germany - from spectacle lens optics through photographic optics to astronomical and X-ray optics. The production techniques employed - grinding with loose abrasive, machining with bonded grain, single-point diamond turning and copying techniques - are discussed. Testing techniques which play an important part in production can only be touched on in passing.
A Targeted Strategy to Wipe Out Clostridium difficile (2011)

This study evaluated daily cleaning with germicidal bleach wipes on wards with a high incidence of hospital-acquired Clostridium difficile infection (CDI). The intervention reduced hospital-acquired CDI incidence by 85%, from 24.2 to 3.6 cases per 10,000 patient-days, and prolonged the median time between hospital-acquired CDI cases from 8 to 80 days.
An efficient method for prefilter computation for reduced-state equalization (2002)

In advanced TDMA mobile communications systems, reduced-state equalization algorithms have to be employed because a high-level modulation is used in order to improve the spectral efficiency. Such equalizers only have a high performance, if the overall discrete-time system to be equalized is minimum-phase. Therefore, in general, a discrete-time prefilter has to be inserted in front of equalization. In the literature, several approaches have been proposed for computation of a suitable FIR or IIR prefilter. We present an approach for FIR prefilter computation, which is quite robust and requires an only moderate computational complexity. The prefilter consists of the cascade of a channel-matched filter and a prediction-error filter, which can be calculated via the Levinson-Durbin algorithm. Simulation results are given, which demonstrate that the performance of the proposed approach is essentially equivalent to the case of reduced-state equalization combined with ideal allpass prefiltering.
ChemInform Abstract: Diversity‐Oriented Synthesis Towards Conceptually New Highly Modular Aminal—Pyrrolidine Organocatalysts. (2008)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.