gebhart/patrepeval huggingface dataset:
ChemInform Abstract: ALLGEMEINE SYNTH. DER DIALKYLAMINOALKYLDERIVATE AROMATISCHER UND HETEROCYCLISCHER VERBINDUNGEN (1970)

Abstract Die Alkohole (I) lassen sich mit den cyclischen Aminen (II) in siedendem Benzol oder Toluol in Gegenwart von Raney‐Ni direkt in die Amine (III) überführen (Ausbeute 83,3‐96%).
Pain Management of the Burn Patient (2009)

Dr. Gevirtz is Clinical Associate Professor, Department of Anesthesiology, Louisiana State University, New Orleans, LA, and Medical Director, Somnia Pain Management, 627 West Street, Harrison, NY 10528; E-mail: [email protected]. Dr. Gevirtz has disclosed that he has no significant relationships with or financial interests in any commercial organizations pertaining to this educational activity. Dr. Gevirtz also has disclosed that the use of gabapentin and pregabalin for management of pain as discussed in this article has not been approved by the U.S. Food and Drug Administration. All faculty and staff in a position to control the content of this CME activity have disclosed that they have no financial relationships with, or financial interests in, any commercial companies pertaining to this educational activity. Lippincott CME Institute, Inc., has identified and resolved all faculty and staff conflicts of interest regarding this educational activity.
Quinolines. VIII.<sup>1</sup> 8-(3-Dimethylamino-1-methylpropylamino)-6-quinolinol and 8-(4-Diethylamino-1-methylbutylamino)-6-quinolinol (1952)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTQuinolines. VIII.1 8-(3-Dimethylamino-1-methylpropylamino)-6-quinolinol and 8-(4-Diethylamino-1-methylbutylamino)-6-quinolinolEdgar A. Steck and Werner BoehmeCite this: J. Am. Chem. Soc. 1952, 74, 18, 4511–4512Publication Date (Print):September 1, 1952Publication History Published online1 May 2002Published inissue 1 September 1952https://pubs.acs.org/doi/10.1021/ja01138a013https://doi.org/10.1021/ja01138a013research-articleACS PublicationsRequest reuse permissionsArticle Views42Altmetric-Citations3LEARN 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
Isolation of Specific Small‐Diameter Single‐Wall Carbon Nanotube Species via Aqueous Two‐Phase Extraction (2014)

Aqueous two-phase extraction is demonstrated to enable isolation of single semiconducting and metallic single-wall carbon nanotube species from a synthetic mixture. The separation is rapid and robust, with remarkable tunability via modification of the surfactant environment set for the separation.
Multifunctional Enzyme, Bisphosphoglyceromutase/2,3‐Bisphosphoglycerate Phosphatase/Phosphoglyceromutase, from Human Erythrocytes (1976)

Bisphosphoglyceromutase and 2,3-bisphosphoglycerate phosphatase activities responsible for 2,3-bisphosphoglycerate metabolsim in human red cells are displayed by the same enzyme protein which has phosphoglyceromutase activity [Sasaki, R., et al. (1975) Eur J. Biochem. 50, 581-593]. This enzyme was subjected to chemical modification by trinitrobenzenesulfonate. The three enzyme activities were inactivated by trinitrobenzenesulfonate at the same rate. The sulfhydryl content of the enzyme was unchanged during trinitrophenylation, indicating that derivatization was through the amino group. Trinitrophenylation of about one amino group per mole of the enzyme resulted in complete loss of the three activities. Both 2,3-bisphosphoglycerate and 1,3-bisphosphoglycerate inhibited trinitrophenylation and effectively protected the enzyme from inactivation. Although monophosphoglycerates did not show any protective effect at concentrations which should be adequate based upon their kinetic constants, they were protective at higher concentrations. Inactivation by trinitrophenylation was an apparent first-order reaction. The dissociation constant of the enzyme - 2,3-bisphosphoglycerate complex was determined by analyzing the first-order reaction on the assumption that the protective effect of 2,3-bisphosphoglycerate was due to competition with trinitrobenzenesulfonate. The dissociation constant was in good agreement with kinetic constants of 2,3-bisphosphoglycerate in the enzyme reactions, which indicated that 2,3-bisphosphoglycerate did indeed exert its protective effect through competition with trinitrobenzenesulfonate for an amino group of the enzyme. The protective effect of monophosphoglycerates could be rationalized with kinetic evidence that 2-phosphoglycerate at high concentrations interacts with the 2,3-bisphosphoglycerate binding site. These results indicate that the enzyme exhibits the three enzyme activities at a common active site at which one amino group essential for binding of bisphosphoglycerates is located. Based on the multifunctional properties of this enzyme, a possible mechanism was discussed for regulation of 2,3-bisphosphoglycerate metabolism in human red cells.
MMP9 overexpression is associated with good surgical outcome in children with UPJO: Preliminary results (2016)

We showed an increase in expression of MMP9 and a decrease in expression of TIMP1 in children who improving renal function and decreasing dilation after surgery. We believe that the higher expression of MMP9 in these cases can reflect an increase in degradation and remodeling process that could be used as a marker for surgical outcome.
An Application of Univariate and Multivariate Approaches in fMRI to Quantifying the Hemispheric Lateralization of Acoustic and Linguistic Processes (2011)

The question of hemispheric lateralization of neural processes is one that is pertinent to a range of subdisciplines of cognitive neuroscience. Language is often assumed to be left-lateralized in the human brain, but there has been a long running debate about the underlying reasons for this. We addressed this problem with fMRI by identifying the neural responses to amplitude and spectral modulations in speech and how these interact with speech intelligibility to test previous claims for hemispheric asymmetries in acoustic and linguistic processes in speech perception. We used both univariate and multivariate analyses of the data, which enabled us to both identify the networks involved in processing these acoustic and linguistic factors and to test the significance of any apparent hemispheric asymmetries. We demonstrate bilateral activation of superior temporal cortex in response to speech-derived acoustic modulations in the absence of intelligibility. However, in a contrast of amplitude-modulated and spectrally modulated conditions that differed only in their intelligibility (where one was partially intelligible and the other unintelligible), we show a left dominant pattern of activation in STS, inferior frontal cortex, and insula. Crucially, multivariate pattern analysis showed that there were significant differences between the left and the right hemispheres only in the processing of intelligible speech. This result shows that the left hemisphere dominance in linguistic processing does not arise because of low-level, speech-derived acoustic factors and that multivariate pattern analysis provides a method for unbiased testing of hemispheric asymmetries in processing.
Eléments métalliques présents dans les phosphates noirs sableux de Youssoufia (Maroc), caractérisation de porphyrines de vanadyle et de nickel (1995)

Des porphyrines de vanadyle et de nickel ont ete isolees des phosphates noirs de Youssoufia (Maroc) a caractere sableux (YII,R7) par chromatographie. La proportion et les caracteristiques de ces complexes ont ete determinees essentiellement a partir des donnees de spectroscopie electronique et de spectrometrie de masse. La nature et la teneur des elements metalliques coordines aux complexes porphyriniques sont egalement precisees. Le vanadium present dans les matieres organiques est totalement coordine a des macrocycles porphyriniques.
Leaf Anatomy in the Grass Series Phragmitiformes (Harz) Avdulov. (1958)

No abstract available
A 45GHz CMOS transmitter SoC with digitally-assisted power amplifiers for 64QAM efficiency improvement (2013)

A 45GHz 64QAM system-on-chip (SoC) CMOS transmitter with digitally-assisted power amplifiers (DAPA) is presented. The SoC includes a 7M gate ASIC with 9b reconfigurable symbol mapping, 8X upsampling, 161tap pulse shape filtering, IQ imbalance correction and DAPA envelope/time estimation. The ASIC feeds two 10b IQ current-steering DACs and active IQ modulator. A unique transformer splitting up converter drives eight parallel combined DAPAs. The chip is packaged in aluminum housing with WR22 outputs. A 64QAM signal achieves 1.8% EVM with 33dBc ACPR at 45GHz. The data rate is 450Mbps and the integrated output power exceeds -10dBm.
On the Performance of Diversity Reception of Coded DSSS in Nakagami Multipath Fading (2007)

In this paper new union bounds are derived for coded direct sequence spread spectrum (DSSS) with RAKE receivers over frequency-selective Nakagami-m fading channels. The union bounds are expressed in the product form, which makes them easily evaluated using the transfer function of the code. The bounds are general to any number of resolvable multipath components and coding scheme with a known transfer function. Results show that the proposed bounds are tight to simulation results.
Resynchronization for multiprocessor DSP systems (2000)

This paper introduces a technique, called resynchronization, for reducing synchronization overhead in multiprocessor implementations of digital signal processing (DSP) systems. The technique applies to arbitrary collections of dedicated, programmable or configurable processors, such as combinations of programmable DSP's, ASICs, and FPGA subsystems. Thus, it is particularly well-suited to the evolving trend toward heterogeneous single-chip multiprocessors in DSP systems. Resynchronization exploits the well-known observation that in a given multiprocessor implementation, certain synchronization operations may be redundant in the sense that their associated sequencing requirements are ensured by other synchronizations in the system. The goal of resynchronization is to introduce new synchronizations in such a way that the number of original synchronizations that become redundant exceeds the number of new synchronizations that are added, and thus, the net synchronization cost is reduced. Our study is based on the context of self-timed execution for iterative dataflow specifications of DSP applications. An iterative dataflow specification consists of a dataflow representation of the body of a loop that is to be iterated indefinitely; dataflow programming in this form has been employed extensively in the DSP domain.
On the global optimum of planar, range-based robot-to-robot relative pose estimation (2010)

In this paper, we address the problem of determining the relative position and orientation (pose) of two robots navigating in 2D, based on known egomotion and noisy robot-to-robot distance measurements. We formulate this as a weighted Least Squares (WLS) estimation problem, and determine the exact global optimum by directly solving the multivariate polynomial system resulting from the first-order optimality conditions. Given the poor scalability of the original WLS problem, we propose an alternative formulation of the WLS problem in terms of squared distance measurements (squared distances WLS or SD-WLS). Using a hybrid algebraic-numeric technique, we are able to solve the corresponding first-order optimality conditions of the SD-WLS in 125 ms in Matlab. Both methods solve the minimal (3 distance measurements) as well as the overdetermined problem (more than 3 measurements) in a unified fashion. Simulation and experimental results show that the SD-WLS achieves performance virtually indistinguishable from the maximum likelihood estimator, and significantly outperforms current algebraic methods.
Comparative analysis of delayed‐onset peroxide crosslinking formulations (2013)

Strategies for affecting the onset and yield of peroxide‐initiated polymer crosslinking formulations are demonstrated and discussed in terms of underlying reaction mechanisms. Rheological studies of linear low density polyethylene (LLDPE) crosslinking by dicumyl peroxide show that conventional antioxidants such as 3,5‐di‐ tert ‐4‐butylhydroxytoluene and 2,2,6,6‐tetramethyl‐1‐piperidinyloxy, as well as reported scorch protectants such as 2,4‐diphenyl‐4‐methyl pentene and 1,1‐diphenylethylene, lower crosslinking rates while suppressing the ultimate state of cure. In contrast, the acrylated nitroxyl, 4‐acryloyloxy‐2,2,6,6‐tetramethylpiperidine‐ N ‐oxyl (AOTEMPO) is shown to suppress the onset of LLDPE crosslinking entirely, while having little effect on the thermoset's final storage modulus. Moreover, AOTEMPO proved capable of quenching allylic macroradical intermediates in cis ‐1,4‐polyisoprene cure formulations, whereas other classes of scorch protecting additives had little effect on crosslinking dynamics and yields. POLYM. ENG. SCI., 54:2645–2653, 2014. © 2013 Society of Plastics Engineers
Effects of alloxan-induced diabetes on ischemia-reperfusion injury in rabbit hearts. (1988)

Hearts from rabbits with 8-16 weeks of alloxan-diabetes were compared with hearts from normal rabbits to determine whether diabetic myocardium is more sensitive to ischemic injury. In isolated buffer-perfused hearts, left ventricular developed pressure, diastolic pressure, time to peak pressure (TTPP), time to half-maximal relaxation (RT1/2), and positive and negative dP/dt were measured during generation of left ventricular filling curves before and after 90 minutes of low-flow ischemia. Hearts from diabetic rabbits (blood glucose, 384 +/- 28 mg/dl, mean +/- 95% confidence limits) had left ventricular developed and diastolic pressures similar to normal hearts but exhibited significant increases in TTPP and RT1/2 with decreased positive and negative dP/dt. Left ventricular chamber volume relative to heart mass was greater in diabetic than in normal hearts. Recovery of developed pressure after ischemia was similar in normal (41 +/- 16%) and diabetic hearts (47 +/- 13%). In diabetic hearts during recovery from ischemia, TTPP and R1/2 remained increased compared with normal hearts, with positive and negative dP/dt decreased compared with normal hearts, in proportion to the preischemic differences. After ischemia, high-energy phosphates were depleted to the same extent in normal and diabetic rabbits. In coronary ligation experiments, histochemically determined infarct size in diabetic rabbits after 30 minutes occlusion and 24 hours reperfusion was similar to that in normal rabbits when adjusted for a significantly smaller heart weight and a correspondingly smaller anatomic risk region in the diabetic animals. Thus, despite characteristic abnormalities of mechanical function in diabetic hearts, the severity of injury after ischemia with reperfusion was normal for diabetic hearts.
Endoscopic Endonasal Resection of Anterior Skull Base Meningiomas (2012)

ACF meningiomas can be safely removed endonasally, offering significant advantages over the traditional transcranial approach for suitable tumors. Early audit of this approach shows results achieved by this unit are comparable with the published literature.
Influence of Climate, Soil, and Cultivar on Terroir (2004)

The three main components of terroir—soil, climate, and cultivar—were studied simultaneously. Vine development and berry composition of nonirrigated <i>Vitis vinifera</i> L. cv. Merlot, Cabernet franc, and Cabernet Sauvignon were compared on a gravelly soil, a soil with a heavy clay subsoil, and a sandy soil with a water table within the reach of the roots. The influence of climate was assessed with year-to-year variations of maximum and minimum temperatures, degree days (base of 10°C), sunshine hours, ET<sub>o</sub>, rainfall, and water balance for the period 1996 to 2000. The effects of climate, soil, and cultivar were found to be highly significant with regard to vine behavior and berry composition (an example being anthocyanin concentration). The impacts of climate and soil were greater than that of cultivar. Many of the variables correlated with the intensity of vine water stress. It is likely that the effects of climate and soil on fruit quality are mediated through their influence on vine water status.
Structural phase transition in quasi-one-dimensional conductors (BDTFP)2X(PhCl)0.5 (X = PF6 and AsF6) [BDTFP = 5,7-bis(1,3-dithiol-2-ylidene)-5,7-dihydrofuro[3,4-b]pyrazine; PhCl = chlorobenzene] (2002)

We present the low-temperature crystal structures of (BDTFP)2PF6 and (BDTFP)2AsF6 below the phase transition temperatures (Tp). In the former compound, the c-axis is doubled, and the dimerized structure is therefore changed into a tetramerized structure. At the same time, a new charge-transfer transition appears at ca. 7000–8000 cm−1. These two findings are consistent with the non-magnetic state below Tp. In the latter compound, on the other hand, the dimerized structure is maintained below Tp, and the AsF6 ion rotates along with the ca. 10° rotation of BDTFP. This structural change is the origin of the first-order phase transition to a paramagnetic state.
A Field Emitter Electron Beam Exposure System (1978)

An electron beam exposure system is built around a field emission scanning electron microscope. To the basic microscope a set of post-lens deflection coils has been added. These coils are optimized for low deflection astigmatism. The coils and the high brightness field emission gun allow a beam with a diameter of less than 50nm to be deflected over an area of 4 × 4 mm2. The beam current is 3-4 nA. Dose variations due to current instabilities in a beam emitted from a field emission cathode is reduced by measuring the beam current continuously and adjusting the scan speed accordingly. Dose variations are thus reduced to a few percent.
INTRAMOLECULAR HYDROGEN BONDING IN 2-HYDROXYDIARYL SULFOXIDES (1981)

Abstract A number of 2-hydroxydiaryl sulfoxides were examined for intramolecular hydrogen bonding by IR spectroscopy. It was shown that the sulfoxide absorption occurred in the 1005–1010 cm−1 range while the hydroxyl absorption was shifted into the C–H absorption region in carbon disulfide solution. In addition, the sulfoxide absorption of bis(2-hydroxy-3-t-butyl-5-methylphenyl) sulfoxide was shown to be at 955 cm−1, a Δv s-o of 95 cm−1, resulting from intramolecular H-bonding.
Exergy analysis, optimization approach study of biomethane liquefaction processes (2018)

International audience
STUDIES ON THE CHEMISTRY OF AUREOMYCIN III. DECHLORINATION OF THE DEGRADATION PRODUCTS OF AUREOMYCIN (1955)

Desdimethylaminoaureomycin (Ⅳ) and desdimethylaminodesoxyaureomycin (Ⅴ), when subjected to catalytic hydrogenation, yield deschlorodesdimethylaminoaureomycin (Ⅶ) and deschlorodesdimethylaminodesoxyaureomycin (Ⅷ) respectively. On warming with methanolic hydrogen chloride, Ⅶ and Ⅷ give their corresponding anhydro-compounds: deschlorodesdimethylaminoanhydroaureomycin (Ⅹ) and deschlorodesdimethylaminodesoxy- anhydroaureomycin (Ⅺ). On catalytic hydrogenation, anhydroaureomycin (Ⅵ) is converted into deschloroanhydro- aureomycin (Ⅳ), which, on further hydrogenation with zinc-acetic acid, produces a mixture of Ⅹ and Ⅺ. A comparison of the ultra-violet absorption spectra of Ⅶ, Ⅷ, Ⅸ, Ⅹ with the cor- responding degradation products of terramycin, Ⅻ, (XIII), (XIV), (XV), provides further evidence for the similarity of the structures between aureomycin and terramycin.
Effects of molecular weight and molecular structure of low profile additives on the properties of bulk molding compound (BMC) (2003)

Abstract The effects of molecular weight and molecular structure of styrene(St)‐based and vinyl acetate(VAc)‐based low‐profile additive (LPA) on the curing kinetics and compatibility of unsaturated polyester (UP)/LPA system and linear shrinkage, water absorption rate, surface gloss and pigmentability of bulk molding compound (BMC) were investigated. Results show that the curing reaction rate decreases with an increase of the molecular weight of LPA due to the chain entanglement effect. The plasticizing effect of LPA on the (UP) network was reduced with an increase of the molecular weight of LPA. Water absorption of BMC increases as the molecular weight of LPA increases, implying that more microvoids were formed inside the BMC, resulting a lower linear shrinkage rate, and worse pigmentability. However, good shrinkage control LPA does not necessarily lead to a smoother surface and better surface gloss. Furthermore, modified LPAs possess better compatibility with UP, the final curing conversion of UP is elevated, and both better shrinkage control and surface properties are also observed.
Specific binding of insulin-like growth factors 1 and 2 to the type 1 and type 2 receptors respectively (1988)

1. Competitive binding and receptor cross-linking experiments have been used to examine the receptor-ligand interactions between three bovine insulin-like growth factors (IGF) and monolayer cultures of myoblasts and fibroblasts. 2. Labelled IGF-2 bound predominantly to the type 2 receptor with negligible label cross-linked to the type 1 receptor, notwithstanding the ability of IGF-2 to compete effectively for the binding of IGF-1 to the type 1 receptor. Approx. 100-fold higher concentrations of IGF-1 or the N-terminal truncated (des-Gly-Pro-Glu) IGF-1 (-3N:IGF-1) were required to produce competition equivalent to IGF-2. 3. All IGF peptides, but especially IGF-1, enhanced the binding of labelled IGF-2 to the type 2 receptor of lung fibroblasts. This unusual effect was probably a consequence of the displacement of labelled IGF-2 otherwise bound to a medium protein, a conclusion supported by the demonstration of a 38 kDa membrane protein cross-linked to labelled IGF-2. 4. Both IGF-1 and -3N:IGF-1 bound only to the type 1 IGF receptor in L6 myoblasts, rat vascular smooth-muscle cells and human lung fibroblasts. The peptides competed for labelled IGF-1 binding with potencies in the order -3N:IGF-1 greater than IGF-1 greater than IGF-2 much greater than insulin. Since the IGF peptides were equipotent in skin fibroblasts, it was proposed that the apparently higher affinity of -3N:IGF-1 for receptors in the other cell types was instead a consequence of a low affinity of this peptide for the competing 38 kDa binding protein.