gebhart/patrepeval huggingface dataset:
Synthesis of silicon quantum dot buried SiO<sub><i>x</i></sub>films with controlled luminescent properties for solid-state lighting (2006)

Highly luminescent Si quantum dot embedded SiOx films were studied as down-converting emitters for solid-state lighting applications. Strong red photoluminescence was observed from these Si nanocrystal embedded films prepared by thermal evaporation of SiO in vacuum or an O2 atmosphere followed by anneal at 1100 °C. The stoichiometry (1.0<x<1.9) and refractive indices (1.5–1.75) of these films could be well controlled by varying the oxygen flow rate and the deposition rate. The emission peak shifted from 840 to 745 nm with increasing O2 flow rate due to a decrease in the size of the Si QDs. Two excitation bands, peaked at 280 and 370 nm, were observed from these samples. The 370 nm band was much stronger than the 280 nm band, which is near the UV LED emission range required for solid-state lighting applications. Blue and green emissions were also observed from samples annealed at a lower temperature.
Synthesis, structural, magnetic, and cytotoxic properties of iron oxide coated iron/iron-carbide nanocomposite particles (2005)

Iron/iron-carbide nanocomposite particles with surface coating of spinel iron oxide were synthesized by thermal decomposition of iron pentacarbonyl [Fe(CO)5] in various atmospheres of argon, methane, and acetylene at a temperature of 257°C. The microstructure, composition, magnetic properties, thermal stability of as-synthesized particles, and the effects of subsequent heat treatment were investigated. The synthesized nanoparticles exhibited a maximum magnetization of 160emu∕g, which was twice that of commonly used spinel iron oxide nanoparticles. After heating in an acidic solution with a pH value of 5 at 60°C for 20h, the nanocomposite particles retained 90% of their initial magnetization. In addition, x-ray diffraction and Mössbauer investigation indicated that the pyrolysis of Fe(CO)5 under different atmospheres resulted in the formation of crystalline iron carbide. It is noted that only Fe was reported to be formed in the literature using the pyrolysis of Fe(CO)5 under an argon atmosphere. Preliminary cytotoxicity assay suggested that the synthesized nanoparticles had comparable biocompatibility to γ-Fe2O3.
Noncontact profilometric measurement of large‐form parts (1996)

A quick and efficient technique for automatic profilometric measurement of a large-form part is proposed and verified by experi- ment. When a laser stripe is projected onto an object, the deformed laser line image is detected by a solid-state array camera and automatically transferred to its space position using a least-squares mapping algo- rithm. Measurements can be executed on any surface of a 3-D object except the base. Large arrays of data points are acquired on each sur- face by means of a scanning mechanism. Since the measuring data from each laser stripe position can provide 2-D information concerning the surface contour, the laser stripe and the solid-state array camera are integrated into a measurement system for obtaining the entire 3-D infor- mation. Experimental results show that this technique can determine the 3-D profile of an object with an accuracy of 0.5 mm. © 1996 Society of Photo-Optical Instrumentation Engineers.
Factors Related to Poor Readers' Achievement Test Performance (1970)

The influence of reading demands on the achievement test performance of sixth grade readers was examined. Ninety subjects took the Stanford Achievement Test in November under standard conditions: (a) test read to subjects, untimed, (b) test read to subjects, timed, (c) test read by subjects, untimed. Analyses of gain scores showed that subjects who had the test read to them made the greatest gains. Time limits, sex and ability did not differentially affect gains.
T-Cell Non-Hodgkin's Lymphomas Reported to the FDA AERS With Tumor Necrosis Factor-Alpha (TNF-α) Inhibitors: Results of the REFURBISH Study (2012)

Risk of T-cell NHL is increased with TNF-α inhibitor use in combination with thiopurines but not with TNF-α inhibitors alone.
Transformed Facial Similarity as a Political Cue: A Preliminary Investigation (2006)

Experimental subjects evaluated a political candidate whose face was digitally altered to absorb the subjects' facial structure. For half of the subjects, the photograph of the candidate was morphed such that the image presented was a blend composed of 60% of the unfamiliar Caucasian male and 40% of the subject. For the other half the photograph was unaltered. Given previous research on implicit familiarity (Zajonc, 1968, 1980), we predicted that the morph would advantage the candidate. The results demonstrated no main effect of the similarity manipulation. However, there was a robust similarity by gender interaction. Male subjects evaluated the morphed candidate more favorably than the unaltered photograph, while female subjects rated him more negatively. We discuss potential explanations for this interaction effect and explore the possible implications of facial similarity as a political cue in both high- and low-information elections.
.alpha.-Keto dianions. New reactive intermediates (1980)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT.alpha.-Keto dianions. New reactive intermediatesConrad J. Kowalski, M. Lynn O'Dowd, M. Carmel Burke, and Kevin W. FieldsCite this: J. Am. Chem. Soc. 1980, 102, 16, 5411–5412Publication Date (Print):July 1, 1980Publication History Published online1 May 2002Published inissue 1 July 1980https://pubs.acs.org/doi/10.1021/ja00536a058https://doi.org/10.1021/ja00536a058research-articleACS PublicationsRequest reuse permissionsArticle Views567Altmetric-Citations45LEARN 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
Pattern generators and microcolumns for ion beam lithography (2000)

A self-aligned microfabrication process has been developed for micron-sized extraction systems, which can be used for pattern generators or microcolumns in ion beam lithography. The extraction of ions from a plasma source through micron-sized apertures is shown not to follow traditional design rules, and the governing equations of interest for meeting design parameters are presented. First order focal properties of the pattern generator and microcolumn are described using Davisson and Calbick’s derivation [C. J. Davisson and C. J. Calbick, Phys. Rev. 38, 558 (1931); 42, 580 (1932)] for an aperture lens. A second order refinement of the focal properties is characterized and explained with computer simulations using MEBS©.
Structural Studies of Crystalline Pentacalent Organobismuth Compounds (1984)

Abstract The syntheses and X‐Ray analyses of three pentavalent organobismuth compounds are described; one of these compounds has a novel diphenylbis(trifluoroacetato)‐bismuthate anion with trigonal bipyramidal geometry and a stereochemically active lone pair. Analysis of these structures together with other data from the literature allows a mapping of the reaction coordinate for bismuth polyhedra.
A frame rate up-conversion method with quadruple motion vector post-processing (2016)

We propose a frame rate up-conversion method with quadruple motion vector post-processing scheme (QMVPS). By considering occlusion and hole problems, we adopt the hybrid motion estimation (ME) method which is a combination of bilateral ME and unilateral ME in both directions. To produce better quality-interpolated frames, the motion vector (MV) outliers of the both unilateral MV fields are detected and corrected by prior-information-based MV refining method and the bilateral MV field is smoothed by using vector extrapolation and weighted summation. Moreover, the selection and determination criterion, which is composed of matching ratio of blocks and ladder-style analysis, is proposed to select and decide the denser bilateral MV field. Experimental results verify the superiority of our work in both objective and subjective performances compared with other conventional ME and MV post-processing methods.
APPLICATIONS OF SCHIFF'S BASES CHELATES IN QUANTITATIVE ANALYSIS : A REVIEW (2010)

Applications of Schiff's bases chelates in quantitative analysis and sample preparation for chemical analysis have been reviewed. The stability of Schiff's bases chelates has been discussed. The uses of Schiff's bases as an analytical chemical reagents and/or separation reagents have been also listed and discussed.
Optimal Subharmonic Entrainment of Weakly Forced Nonlinear Oscillators (2014)

For many natural and engineered systems, a central function or design goal is the synchronization of one or more rhythmic or oscillating processes to an external forcing signal, which may be periodic on a different time-scale from the actuated process. Such subharmonic synchrony, which is dynamically established when $N$ control cycles occur for every $M$ cycles of a forced oscillator, is referred to as $N$:$M$ entrainment. In many applications, entrainment must be established in an optimal manner, for example, by minimizing control energy or the transient time to phase locking. We present a theory for deriving weak inputs that establish subharmonic $N$:$M$ entrainment of nonlinear oscillators, or of collections of rhythmic dynamical units, while optimizing such objectives. Ordinary differential equation models of oscillating systems are reduced to phase variable representations, each of which consists of a natural frequency and phase response curve. When such reduced models reasonably approximate the oscillatory system dynamics, formal averaging and the calculus of variations are applied to derive optimal subharmonic entrainment waveforms. The optimal entrainment of a canonical model for a spiking neuron is used to illustrate this approach, which can be extended to the class of smooth oscillatory dynamical systems with a strongly attractive limit cycle.
Renal Dopamine Receptor Function in Hypertension (1998)

Dopamine plays an important role in the regulation of renal sodium excretion. The synthesis of dopamine and the presence of dopamine receptor subtypes (D1A, D1B, as D1-like and D2, and D3 as D2-like) have been shown within the kidney. The activation of D1-like receptors located on the proximal tubules causes inhibition of tubular sodium reabsorption by inhibiting Na,H-exchanger and Na,K-ATPase activity. The D1-like receptors are linked to the multiple cellular signaling systems (namely, adenylyl cyclase, phospholipase C, and phospholipase A2) in the different regions of the nephron. Defective renal dopamine production and/or dopamine receptor function have been reported in human primary hypertension as well as in genetic models of animal hypertension. There may be a primary defect in D1-like receptors and an altered signaling system in the proximal tubules that lead to reduced dopamine-mediated effects on renal sodium excretion in hypertension. Recently, it has been shown in animal models that the disruption of either D1A or D3 receptors at the gene level causes hypertension in mice. Dopamine and dopamine receptor agonists also provide therapeutic potential in treatment of various cardiovascular pathological conditions, including hypertension. However, because of the poor bioavailability of the currently available compounds, the use of D1-like agonists is limited to the management of patients with severe hypertension when a rapid reduction of blood pressure is clinically indicated and in acute management of patients with heart failure. In conclusion, there is convincing evidence that dopamine and dopamine receptors play an important role in regulation of renal function, suggesting that a defective dopamine receptor/signaling system may contribute to the development and maintenance of hypertension. Further studies need to be directed toward establishing a direct correlation between defective dopamine receptor gene in the kidney and development of hypertension. Subsequently, it may be possible to use a therapeutic approach to correct the defect in dopamine receptor gene causing the hypertension.
Thevenin forms of digital discrete-time non-Foster RC and RL circuits (2016)

Previous design approaches for digital discrete-time non-Foster circuits have typically employed ideal current-output digital-to-analog converters to establish port currents based on measured voltages. In this paper, the design of digital discrete-time non-Foster circuits is presented for the case of voltage-output digital-to-analog converters with finite source impedance. These finite-impedance converters act as Thevenin sources that can be converted to Norton-equivalent sources for design and analysis. However, it is also straightforward to incorporate the finite source impedance directly into the signal processing, and this is the approach presented. In addition, it is often desirable to add series resistance to improve stability or to mitigate parasitic resistance, so the design of series resistor-capacitor and series resistor-inductor digital discrete-time non-Foster circuits are considered. Finally, unavoidable time-delay latencies associated with conversion time and computation time are also included.
The operation of coated tungsten-based dispenser cathodes in nonideal vacuum (1989)

The behavior of iridium- and osmium-coated dispenser cathodes in background pressures of oxygen and water vapor is discussed. Poisoning is predominantly chemical in nature and occurs at significantly lower pressures than would be expected for physical sputtering damage to the cathode surface. Measurements to determine the maximum background pressure in which the cathode can maintain their full emission capability are presented. The osmium-coated cathode has greater resistance to poisoning than the iridium-coated both at room and operating temperatures. The coated cathodes can operate in about three times as great a pressure of water vapor as oxygen. The results suggest ways that these cathodes can be optimized in nonideal vacuum. They also suggest that it should be possible to design an osmium-coated that will be able to emit fully 1310 K to about 5*10/sup -8/ torr of water vapor.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Cellular Actions Of Opioids And Other Analgesics: Implications For Synergism In Pain Relief (2000)

1. mu-Opioid receptor agonists mediate their central analgesic effects by actions on neurons within brain regions such as the mid-brain periaqueductal grey (PAG). Within the PAG, mu-opioid receptor-mediated analgesia results from inhibition of GABAergic influences on output projection neurons. We have established that mu-opioid receptor activation in the PAG causes a presynaptic inhibition of GABA release that is mediated by activation of a voltage-dependent K+ channel via 12-lipoxygenase (LOX) metabolites of arachidonic acid. 2. At a cellular level, mu-opioid agonists have also been shown to open inwardly rectifying K+ channels, close voltage-gated Ca2+ channels and presynaptically inhibit glutamatergic synaptic transmission in the PAG. 3. The mu-opioid receptor-mediated presynaptic inhibition of GABAergic transmission was abolished by phospholipase A2 inhibitors and non-specific LOX and specific 12-LOX inhibitors. Cyclo-oxygenase (COX) and specific 5-LOX inhibitors did not reduce the inhibitory effects of mu-opioid agonists. 4. The opioid actions on GABAergic transmission were mimicked by arachidonic acid and 12-LOX metabolites, but not 5-LOX metabolites. The efficacy of mu-opioids was enhanced synergistically by treatment of PAG neurons with inhibitors of the other major enzymes responsible for arachidonic acid metabolism, COX and 5-LOX. 5. These results explain a previously described analgesic action of COX inhibitors in the central nervous system that was both independent of prostanoid release and inhibited by opioid receptor antagonists and they also explain the synergistic interaction of opioids with COX inhibitors. These findings also suggest new avenues for the development of centrally active analgesic agents involving combinations of lowered doses of opioids and specific 5-LOX inhibitors.
Engineering of Glucose Oxidase for Direct Electron Transfer via Site-Specific Gold Nanoparticle Conjugation (2011)

Optimizing the electrical communication between enzymes and electrodes is critical in the development of biosensors, enzymatic biofuel cells, and other bioelectrocatalytic applications. One approach to address this limitation is the attachment of redox mediators or relays to the enzymes. Here we report a simple genetic modification of a glucose oxidase enzyme to display a free thiol group near its active site. This facilitates the site-specific attachment of a maleimide-modified gold nanoparticle to the enzyme, which enables direct electrical communication between the conjugated enzyme and an electrode. Glucose oxidase is of particular interest in biofuel cell and biosensor applications, and the approach of "prewiring" enzyme conjugates in a site-specific manner will be valuable in the continued development of these systems.
28 GHz omni-directional quasi-optical transmitter array (1995)

Omni-directional base stations are needed in many emerging wireless communication systems. This paper presents the first adaptation of a quasi-optical oscillator array for this purpose. A 28 GHz active oscillator element containing a modified Vivaldi endfire antenna is utilized as the unit cell. Twelve of these are incorporated into the circular array, which is powered from a single DC power supply. The array has a high combining efficiency and remains frequency-locked over a span of 600 MHz.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Functional Interactions of Transcription Factor Human GA-binding Protein Subunits (1998)

The transcription factor human GA-binding protein (hGABP) is composed of two subunits, the Ets-related hGABPalpha, which binds to a specific DNA sequence, and either one of two hGABPalpha-associated subunits, hGABPbeta or hGABPgamma. The DNA-binding protein hGABPalpha cannot affect transcription by itself, but can modify hGABP-dependent transcription in vitro and in vivo in the presence of its associated subunits. In this study, co-transfection assays showed that the ratio of hGABPbeta to hGABPgamma affected transcription from a promoter containing hGABP binding sites. Biochemical analysis showed that they bind to hGABPalpha competitively, indicating that the ratio of hGABPbeta to hGABPgamma is important for hGABP complex formation. Kinetic analysis of the protein-protein interaction using the surface plasmon resonance system showed that hGABPalpha binds to hGABPbeta or hGABPgamma with similar equilibrium constants. Kinetic analysis of the DNA-hGABP interaction showed that the binding of hGABPgamma to hGABPalpha stabilized the interaction of hGABPalpha with its DNA binding site. In addition, the kinetic analysis revealed that this was due to a slower dissociation of the protein complex from the DNA. These results suggest that hGABPalpha-associated subunits influence the DNA binding stability of hGABPalpha and regulate hGABP-mediated transcription by competing with each other.
Differential expression of proteins associated with seasonal bud dormancy at four critical stages in Japanese apricot (2012)

Dormancy is of great significance in the growth and development of deciduous fruit trees. We used a combination of two-dimensional gel electrophoresis (2-DE) and matrix-assisted laser desorption/ionisation time of flight/time of flight mass spectrometry (MALDI-TOF/TOF MS) to identify the differentially expressed proteome of Japanese apricot flower buds at four critical stages, from paradormancy before leaf fall to dormancy release. More than 400 highly reproducible protein spots (P < 0.05) were detected: 34 protein spots showed a greater than twofold difference in expression values, of which 32 protein spots were confidently identified from databases. Identified proteins were classified into six functional categories: stress response and defence (11), energy metabolism (ten), protein metabolism (five), cell structure (three), transcription (one) and unclassified (two). The glyoxalase I homologue could help Japanese apricot survival under various abiotic and biotic stresses, greatly contributing to its dormancy. Enolase, thioredoxin family proteins and triose phosphate isomerase provide adequate energy to complete consecutive dormancy release and bud break in Japanese apricot. Cinnamyl alcohol dehydrogenase 9 and arginase enhance the resilience of plants, enabling them to complete dormancy safely. Analysis of functions of identified proteins and related metabolic pathways will increase our knowledge of dormancy in woody plants.
Plasma Lipids and Lipoproteins in Friedreich's Ataxia and Familial Spastic Ataxia — Evidence for an Abnormal Composition of High Density Lipoproteins (1978)

A systematic study of plasma lipids and lipoproteins was carried out in 11 cases of Friedreich's ataxia and 6 cases of familial spastic ataxia (Charlevoix-Saguenay disease) using 11 healthy normolipidemic volunteers of comparable age and sex as controls. No differences were noted in the fatty acid profile of the total lipid fraction, in the total cholesterol and phospholipids or in the percentage distribution of the individual phospholipid classes. The triglycerides were significantly higher in Friedreich's ataxia, but remained within the normal range. Although no systematic abnormalities could be detected in the electrophoretic pattern of plasma lipoproteins or in the apolipoprotein profile on polyacrylamide gel electrophoresis, major differences were found in the high density lipoprotein (HDL) fraction. Their total amount was reduced and their composition was abnormal in both neurological diseases. In Friedreich patients, the relative proportion of cholesterol and triglycerides was increased while the relative protein content was greatly reduced. In Charlevoix disease, a similar abnormality was seen except for the excess of triglycerides. The proportion of phospholipids in HDL was the same in the three groups of patients. In addition, the low density lipoprotein (LDL) fraction was slightly reduced in both diseases. This anomaly of the HDL fraction could indicate that the HDL apolipoprotein moiety has a greater affinity for cholesterol and triglycerides in Friedreich's ataxia than its normal counterpart.