gebhart/patrepeval huggingface dataset:
Rank Dependence of Orientational Relaxation in Dipolar Systems (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRank Dependence of Orientational Relaxation in Dipolar SystemsSarangan Ravichandran and Biman BagchiCite this: J. Phys. Chem. 1994, 98, 11, 2729–2731Publication Date (Print):March 1, 1994Publication History Published online1 May 2002Published inissue 1 March 1994https://pubs.acs.org/doi/10.1021/j100062a004https://doi.org/10.1021/j100062a004research-articleACS PublicationsRequest reuse permissionsArticle Views63Altmetric-Citations10LEARN 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 options Get e-Alerts
Spectroscopic Characterization of Linseed Oil Based Polymers (2008)

Linseed oil based polymers from cationic and thermal polymerizations have been investigated quantitatively through 1H NMR and FTIR spectroscopic analysis. The solubility of the samples ranges from 22 to 37% for cationic samples and from 4.23 to 53% for thermal samples. The content of the grafted linseed oil calculated from 1H NMR results ranges from 22.9 to 43.0% and from 0 to 10% for cationic and thermal samples. The grafted linseed oil contents from FTIR are 18.2−45.4% and 0−10.7% for cationic and thermal samples. The values obtained through quantitative 1H NMR and FTIR spectroscopic analysis methods are consistent and can be applied to other polymers also.
Epidermal growth factor receptor (EGFR) gene polymorphisms predict pelvic recurrence in patients with rectal cancer treated with chemoradiation (2004)

4747 An association between epidermal growth factor receptor (EGFR) signaling pathway and response of cancer cells to ionizing radiation has been reported. Recently, a variant EGFR gene that has an arginine-to-lysine substitution in the extracellular domain at codon 497 within subdomain IV of EGFR has been identified. In vitro studies show that the variant EGFR (HER1-497K) has attenuated functions in ligand binding, growth stimulation, tyrosine kinase activation and induction of protooncogenes MYC, FOS and JUN. A (CA)n repeat polymorphism in intron 1 of the EGFR gene that alters EGFR expression in-vitro and in-vivo has also been described. Lower EGFR levels are associated with a higher number of CA repeats. In this study we determined both polymorphisms in 92 stage II or III rectal cancer patients treated with adjuvant or neo-adjuvant chemoradiation therapy using PCR-RFLP and a 5’-end 33P-γATP labeled PCR protocol and tested whether both polymorphisms will predict local recurrence in rectal cancer patients treated with chemoradiation. We found patients with EGFR (HER1-497K) AA genotype have a decreased relative risk of local recurrence compared with those with AG genotype or wild type (HER1-497R) GG genotype. Furthermore, Patients with HER1-497 AG or GG genotype combined with CA repeats
Excavatoids E and F: Discovery of Two New Briaranes from the Cultured Octocoral Briareum excavatum (2009)

Two new briarane-related diterpenoids, designated as excavatoids E (1) and F (2), were isolated from the cultured octocoral Briareum excavatum. The structures of compounds 1 and 2 were established on the basis of extensive spectral data analysis. Briaranes 1 and 2 were found to exhibit moderate inhibitory effects on elastase release by human neutrophils.
ChemInform Abstract: Recent Advances in the Chemistry of Heterometallacycles of Group 4 Metallocenes (2013)

Abstract Review: 90 refs.
LV and Biventricular Pacing Improve Cardiac Efficiency (2001)

Conduction delay (QRS duration, ≥140 ms) is common in patients with dilated cardiomyopathy (DCM) and is associated with reduced systolic performance
The effect of low level laser therapy on the contraction of fibroblast populated collagen-GAG lattices in vitro (2003)

Abstract of paper from the Second Meeting of the European Tissue Engineering Society (ETES), Genoa, Italy, September 3-6, 2003. Describes the effect of low level laser therapy on the contraction of fibroblast populated collagen-GAG lattices in vitro.
ChemInform Abstract: A Novel Synthesis of 4‐Methyl‐1,3‐dioxolane‐4‐carbaldehydes by Epoxidation of 5‐Methyl‐4H‐1,3‐dioxines and Acid‐Catalyzed Rearrangement. (1999)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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.
Cyclization of Alkoxyiminyl Radicals Onto Olefins: Formation of 2-Alkoxy-Delta(1)-Pyrrolines, 4,5-Dihydrooxazoles and 5,6-Dihydrol-4h-1,3-Oxazines (1993)

Alkoxyiminyl radicals, generated by photolysis of N-bromo imidates, undergo exo-1,5 and exo-1,6 cyclization onto olefins on the O-alkyl side chains giving good yields of 4,5-dihydrooxazoles and 5,6-dihydro-4H-1,3-oxazines, respectively. exo-1,5 Cyclization onto an olefin on the iminyl side chain gives 2-alkoxy-?1-pyrrolines. 4,5-Dihydrooxazole formation is more favourable than cyclization to 2-alkoxy-?1-pyrrolines and both reactions are irreversible. These preferences are supported by MNDO molecular orbital calculations which predict that both processes are exothermic but cyclization onto the O- alkenyl side chain has a lower ?H‡.
Transport user as an instrument of economic growth, efficiency and effectiveness (2010)

This article focuses on the transport user. It assume, that the transport user is an instrument of economic growth, the efficiency and effectiveness. An efficient and effective transport system can significantly support the economic growth. Industry expects an effective and efficient transport system to support sustainable economic growth and enable it to compete in state, national and global markets. It expects an interconnected system of roads, rail, pipelines, ports and airports to ensure products reach markets quickly, efficiently and in good condition. Transport users are important economic agents from this point of view. Because people are\ncreators of markets, are inputs to production and consumers of goods and services. The transport task in relation to people is therefore complex. Transport user is so very important part of the transportation planning process. This article will try to resume basic aspects and important areas influenced by the force of transport user.
Pre‐existence of the active site in zymogens, the interaction of trypsinogen with the basic pancreatic trypsin inhibitor (Kunitz) (1976)

<P>Abstract copyright UK Data Service and data collection copyright owner.</P>
Preparation of 3D Photonic Crystals from Opals (2004)

This chapter contains sections titled: Introduction Preparation of monodisperse colloids General methods Preparation of functional core shell structures Crystallization into opaline structures Sedimentation Crystallization mediated by the magnetic field Two dimensional crystallization to photonic crystal films Structured photonic crystals Lateral patterning Preparation of heterostructures from different colloids Replica from opaline structure
Pseudo-telepathy: input cardinality and Bell-type inequalities (2006)

Pseudo-telepathy is the most recent form of rejection of locality. Many of its properties have already been discovered: for instance, the minimal entanglement, as well as the minimal cardinality of the output sets, have been characterized. This paper contains two main results. First, we prove that no bipartite pseudo-telepathy game exists, in which one of the partners receives only two questions; as a corollary, we show that the minimal "input cardinality", that is, the minimal number of questions required in a bipartite pseudo-telepathy game, is 3x3. Second, we study the Bell-type inequality derived from the pseudo-telepathy game known as the Magic Square game: we demonstrate that it is a tight inequality for 3 inputs and 4 outputs on each side and discuss its weak resistance to noise.
Molecular Level-Crossing Spectroscopy (1966)

Classical and quantum formulations are presented for the effects of level crossings on the angular distribution of molecular resonance fluorescence. It is shown that a study of the ``molecular Hanle effect,'' or its electric-field analog, may be used to determine the product of the radiative lifetime ρv′J′ with the magnetic moment μm, or the electric dipole moment μe, respectively, for the (v′, J′) excited state. The theory is developed for diatomic or polyatomic molecules characterized by symmetric-top wavefunctions. Order-of-magnitude estimates are performed, and the observation of zero-field molecular level crossings appears to be quite feasible.
Identification of the <i>SAAT</i> Gene Involved in Strawberry Flavor Biogenesis by Use of DNA Microarrays (2000)

Fruit flavor is a result of a complex mixture of numerous compounds. The formation of these compounds is closely correlated with the metabolic changes occurring during fruit maturation. Here, we describe the use of DNA microarrays and appropriate statistical analyses to dissect a complex developmental process. In doing so, we have identified a novel strawberry alcohol acyltransferase (SAAT) gene that plays a crucial role in flavor biogenesis in ripening fruit. Volatile esters are quantitatively and qualitatively the most important compounds providing fruity odors. Biochemical evidence for involvement of the SAAT gene in formation of fruity esters is provided by characterizing the recombinant protein expressed in Escherichia coli. The SAAT enzyme showed maximum activity with aliphatic medium-chain alcohols, whose corresponding esters are major components of strawberry volatiles. The enzyme was capable of utilizing short- and medium-chain, branched, and aromatic acyl-CoA molecules as cosubstrates. The results suggest that the formation of volatile esters in fruit is subject to the availability of acyl-CoA molecules and alcohol substrates and is dictated by the temporal expression pattern of the SAAT gene(s) and substrate specificity of the SAAT enzyme(s).
Evidence for a cross-talk between human neutrophils and Th17 cells (2009)

Interleukin-17A (IL-17A) and IL-17F are 2 of several cytokines produced by T helper 17 cells (Th17), which are able to indirectly induce the recruitment of neutrophils. Recently, human Th17 cells have been phenotypically characterized and shown to express discrete chemokine receptors, including CCR2 and CCR6. Herein, we show that highly purified neutrophils cultured with interferon-gamma plus lipopolysaccharide produce the CCL2 and CCL20 chemokines, the known ligands of CCR2 and CCR6, respectively. Accordingly, supernatants from activated neutrophils induced chemotaxis of Th17 cells, which was greatly suppressed by anti-CCL20 and anti-CCL2 antibodies. We also discovered that activated Th17 cells could directly chemoattract neutrophils via the release of biologically active CXCL8. Consistent with this reciprocal recruitment, neutrophils and Th17 cells were found in gut tissue from Crohn disease and synovial fluid from rheumatoid arthritis patients. Finally, we report that, although human Th17 cells can directly interact with freshly isolated or preactivated neutrophils via granulocyte-macrophage colony-stimulating factor, tumor necrosis factor-alpha, and interferon-gamma release, these latter cells cannot be activated by IL-17A and IL-17F, because of their lack of IL-17RC expression. Collectively, our results reveal a novel chemokine-dependent reciprocal cross-talk between neutrophils and Th17 cells, which may represent a useful target for the treatment of chronic inflammatory diseases.
Reduction of Rectangular Waveguide Cross Section with Metamaterials: A New Approach (2015)

International audience
Easy access to the family of thiazole N-oxides using HOF·CH<sub>3</sub>CN (2006)

An efficient procedure for transferring an oxygen atom to thiazole-containing compounds, resulting in the corresponding N-oxides, was developed by using HOF x CH3CN; mild reaction conditions, high yields and easy purification are the main features of this novel route, while X-ray structural analysis reveals a hydrogen bond between the N-oxide functionality and a water molecule.
Digital Adaptive Driving Strategies for High-Voltage IGBTs (2013)

Digital technology incorporated into the gate drive unit of high-voltage insulated-gate bipolar transistors (IGBTs) allows new features, like automatic optimization of the gate current waveforms for achieving certain properties of the switching transients or automatic adaptation to the operating conditions. This paper presents a digital gate unit with online measurement of the switching waveforms of an IGBT. Based on this, a robust control algorithm is developed to adapt the gate current waveforms to the desired switching behavior, irrespective of the operating conditions. The algorithm is implemented in a field-programmable gate array on the gate unit and experimentally verified for several optimization objectives using 3.3-kV and 1200-A IGBTs.
Delay Lines (2014)

Delay lines provide the ability of controlling the time delay of a signal. Delay lines are basic and important elements that can find applications in radar, communications, and signal processing. In general, there are two types of delay lines: electrical delay lines and optical delay lines. Because an optical delay line has a much wider bandwidth and higher speed, it is a good candidate for ultra wideband systems and has attracted significant interest recently. In this article, we will first discuss electrical delay lines and then discuss optical delay lines in a greater detail.
Hepatitis C viraemia in adults with type 2 autoimmune hepatitis (1991)

Sera from 14 patients with type 2 autoimmune hepatitis (anti-LKM1 positive) were investigated for evidence of hepatitis C virus (HCV) infection. Antibodies to HCV were detected in 13 patients by both commercial and "in-house" ELISAs and also by a second generation recombinant immunoblot assay. Nine of the 13 (69%) anti-HCV positive patients were shown to be viraemic by a polymerase chain reaction-based assay for serum HCV RNA. Neither anti-HCV nor serum HCV RNA were detected in any of 6 controls with primary biliary cirrhosis or in 39 healthy blood donors. These findings strongly suggest a role for HCV in the pathogenesis of type 2 autoimmune hepatitis.
Broad Spectral Range Synchronized Flat-top Arrayed Waveguide Grating (2012)

A broad-band Mach-Zehnder-interferometer-synchronized flat-top arrayed waveguide grating is presented with a 0.5-dB bandwidth of 12 nm over 90 nm of spectral range and a central excess loss value of -0.5 dB.
Counteracting retardation of plasticizers by calcium nitrate (2006)

The International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM) was founded with the aim to promote scientific cooperation in the area of construction materials and structures worldwide. This mission is achieved through collaboration of leading experts in construction practice and science including academics, researchers, industrialists, testing laboratories and authorities.
USE OF SCINTILLATOR-PHOTODIODE DETECTOR IN COUNTING MODE IN DOSIMETRY (1991)

3,3'-diselenodipropionic acid (DSePA), a derivative of selenocystine, has been synthesized and examined for antioxidant activity, glutathione peroxidase (GPx) activity, and cytotoxicity. The effect of DSePA on membrane lipid peroxidation, release of hemoglobin, and intracellular K+ ion as a consequence of erythrocyte (red blood cells or RBCs) oxidation by free radicals generated by 2,2'-azobis(2-amidinopropane) hydrochloride (AAPH) were used to evaluate the antioxidant ability. Lipid peroxidation, hemolysis, and K+ ion loss in RBCs were assessed, respectively, by formation of thiobarbituric acid reactive substances (TBARS), absorbance of hemoglobin at 532 nm and flame photometry. The IC50 values for lipid peroxidation, hemolysis, and K+ ion leakage were 45+/-5, 20+/-2, and 75+/-8 microM, respectively. DSePA treatment prevented the depletion of glutathione (GSH) levels in RBCs from free-radical-induced stress. DSePA is a good peroxyl radical scavenger and the bimolecular rate constant for the reaction of DSePA with a model peroxyl radical, trichloromethyl peroxyl radical (CCl 3O2*), was determined to be 2.7x10(8) M(-1) s(-1) using a pulse radiolysis technique. DSePA shows GPx activity with higher substrate specificity towards peroxides than thiols. The cytotoxicity of DSePA was studied in lymphocytes and EL4 tumor cells and the results showed that DSePA is nontoxic to these cells at the concentrations employed. These results when compared with two well-known selenium compounds, sodium selenite and ebselen, indicated that DSePA, although it shows lesser GPx activity, has higher free radical scavenging ability and lesser toxicity.
Output Space Search for Structured Prediction (2012)

We consider a framework for structured prediction based on search in the space of complete structured outputs. Given a structured input, an output is produced by running a time-bounded search procedure guided by a learned cost function, and then returning the least cost output uncovered during the search. This framework can be instantiated for a wide range of search spaces and search procedures, and easily incorporates arbitrary structured-prediction loss functions. In this paper, we make two main technical contributions. First, we define the limited-discrepancy search space over structured outputs, which is able to leverage powerful classification learning algorithms to improve the search space quality. Second, we give a generic cost function learning approach, where the key idea is to learn a cost function that attempts to mimic the behavior of conducting searches guided by the true loss function. Our experiments on six benchmark domains demonstrate that using our framework with only a small amount of search is sufficient for significantly improving on state-of-the-art structured-prediction performance.
Safety Evaluation of Physical Human-Robot Interaction via Crash-Testing (2008)

The light-weight robots developed at the German Aerospace Center (DLR) are characterized by their low inertial properties, torque sensing in each joint and a load to weight ratio similar to humans.These properties qualify them for applications requiring high mobility and direct interaction with human users or uncertain environments.An essential requirement for such a robot is that it must under no circumstances pose a threat to the human operator.To actually quantify the potential injury risk emanating from the manipulator, impact test were carried out using standard automobile crash-test facilities at the ADAC 1 .In our evaluation we focused on unexpected rigid frontal impacts, i.e. injuries e.g.caused by sharp edges are excluded.Several injury mechanisms and so called Severity Indices are evaluated and discussed with respect to their adaptability to physical human-robotic interaction.
A reassessment of the range of<i>c</i>-type cytochromes synthesized by<i>Escherichia coli K-12</i> (1994)

Five different c-type cytochromes have been detected during anaerobic growth of various Escherichia coli strains in different media. None of these cytochromes was detectable in aerobically-grown cultures. Only a single, 43 kDa cytochrome was synthesized in response to the presence of trimethylamine-N-oxide: synthesis of this cytochrome was unaffected by the presence of nitrate or nitrite, was repressed by oxygen, but was dependent upon a functional tor operon located at minute 22 (coordinate 1070 kb) on the E. coli chromosome. The other four cytochromes, masses 16, 18, 24 and 50 kDa, were induced by nitrite coordinately with formate-dependent nitrite reductase activity, but repressed by oxygen and nitrate. As only the 18 kDa and 50 kDa cytochromes are encoded by the nrf operon located at minute 92 (coordinate 4366 kb), there must be other loci, possibly essential for formate-dependent nitrite reduction, encoding the 16 kDa and 24 kDa cytochromes. No other c-type cytochrome was detected under any growth condition tested.
0.25&#956;m In&gt;inf&lt;0.52&gt;/inf&lt;Al&gt;inf&lt;0.48&gt;/inf&lt;As/In&gt;inf&lt;0.53&gt;/inf&lt;Ga&gt;inf&lt;0.47&gt;/inf&lt;As/InAs&gt;inf&lt;0.3&gt;/inf&lt;P&gt;inf&lt;0.7&gt;/inf&lt;Composite Channel HEMTs with an f&gt;inf&lt;T&gt;/inf&lt;of 115GHz (2006)

In this paper we report growth, fabrication and characterization of In/sub 0.52/Al/sub 0.4/sAs/In/sub 0.53/Ga/sub 0.47/As/InAs/sub 0.3/P/sub 0.7/ composite channel HEMTs with a gate length of 0.25 /spl mu/m. In comparison with InAlAs/InGaAs/InP composite channel HEMTs, these devices have better band structure for transferring electrons to the composite channel under high electric field, thus exhibit excellent DC and microwave performance with a peak extrinsic transconductance of 888.3 mS/mm, an f/sub T/ of 115 GHz, and an f/sub max/ of 137 GHz. To our knowledge, this is the first report of InAlAs/InGaAs/InAsP composite channel HEMTs. The f/sub T/ is the highest ever reported for any composite channel HEMTs with the same gate length.