gebhart/patrepeval huggingface dataset:
Correlation between <sup>13</sup>C NMR Chemical Shifts and Conformation of Polymers. 3. Hexad Sequence Assignments of Methylene Spectra of Polypropylene (1980)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCorrelation between 13C NMR Chemical Shifts and Conformation of Polymers. 3. Hexad Sequence Assignments of Methylene Spectra of PolypropyleneA. Zambelli, P. Locatelli, A. Provasoli, and D. R. FerroCite this: Macromolecules 1980, 13, 2, 267–270Publication Date (Print):March 1, 1980Publication History Published online1 May 2002Published inissue 1 March 1980https://pubs.acs.org/doi/10.1021/ma60074a012https://doi.org/10.1021/ma60074a012research-articleACS PublicationsRequest reuse permissionsArticle Views379Altmetric-Citations84LEARN 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
Negative Poisson’s Ratio Materials via Isotropic Interactions (2008)

We show that under tension a classical many-body system with only isotropic pair interactions in a crystalline state can, counterintuitively, have a negative Poisson's ratio, or auxetic behavior. We derive the conditions under which the triangular lattice in two dimensions and lattices with cubic symmetry in three dimensions exhibit a negative Poisson's ratio. In the former case, the simple Lennard-Jones potential can give rise to auxetic behavior. In the latter case, a negative Poisson's ratio can be exhibited even when the material is constrained to be elastically isotropic.
Comparing Decision Making Between Cancer Patients and the General Population: Thoughts, Emotions, or Social Influence? (2012)

This study extends a risk information seeking and processing model to explore the relative effect of cognitive processing strategies, positive and negative emotions, and normative beliefs on individuals' decision making about potential health risks. Most previous research based on this theoretical framework has examined environmental risks. Applying this risk communication model to study health decision making presents an opportunity to explore theoretical boundaries of the model, while also bringing this research to bear on a pressing medical issue: low enrollment in clinical trials. Comparative analysis of data gathered from 2 telephone surveys of a representative national sample (n = 500) and a random sample of cancer patients (n = 411) indicated that emotions played a more substantive role in cancer patients' decisions to enroll in a potential trial, whereas cognitive processing strategies and normative beliefs had greater influences on the decisions of respondents from the national sample.
ChemInform Abstract: A Switch of Enantiofacial Selectivities Using Designed Similar Chiral Ligands in Zirconium‐Catalyzed Asymmetric Aza Diels—Alder Reactions. (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.
Prospective, randomized, double-blinded, placebo-controlled study on safety and tolerability of the krill powder product in overweight subjects with moderately elevated blood pressure (2018)

ClinicalTrials.gov, NCT03112083 , retrospectively registered.
Synthetic Studies on Arginine-vasopressin: Condensation of S-Benzyl-N-carbobenzoxy-L-cysteinyl -L-tyrosyl-L-phenylalanyl-L-glutaminyl-L- asparagine and its O-Tosyl Derivative with S-Benzyl-L-cysteinyl- L-prolyl-L-arginylglycinamide<sup>1</sup> (1957)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthetic Studies on Arginine-vasopressin: Condensation of S-Benzyl-N-carbobenzoxy-L-cysteinyl -L-tyrosyl-L-phenylalanyl-L-glutaminyl-L- asparagine and its O-Tosyl Derivative with S-Benzyl-L-cysteinyl- L-prolyl-L-arginylglycinamide1Panayotis G. Katsoyannis, Duane T. Gish, and Vincent du VigneaudCite this: J. Am. Chem. Soc. 1957, 79, 16, 4516–4520Publication Date (Print):August 1, 1957Publication History Published online1 May 2002Published inissue 1 August 1957https://pubs.acs.org/doi/10.1021/ja01573a071https://doi.org/10.1021/ja01573a071research-articleACS PublicationsRequest reuse permissionsArticle Views69Altmetric-Citations30LEARN 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
A simple filter design procedure using compensated operational amplifiers (1979)

The effect of using a compensated operational amplifier in the design of second-order, minimum capacitor, active RC filters is [studied. A state-space description for the filter leads to a set of necessary conditions, in algebraic and topological forms, such that important properties of the ideal filter structure are achieved. These conditions are easily derived from the ideal structure. A simple design procedure enables the designer to get the moat out of the gain-bandwidth of the amplifier, obtaining an exact location for the pair of complex poles, while increasing considerably the frequency range where the structure is usable.
11-Oxygenated Pregnenolones. II. Synthesis of 11 α-Hydroxy-, 11β-Hydroxy-, and 11-Ketopregnenolones and 11-Keto-17 α-pregnenolone. (1964)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT11-Oxygenated Pregnenolones. II. Synthesis of 11 α-Hydroxy-, 11β-Hydroxy-, and 11-Ketopregnenolones and 11-Keto-17 α-pregnenolone.W Wechter and H MurrayCite this: J. Org. Chem. 1964, 29, 12, 3743Publication Date (Print):December 1, 1964Publication History Published online21 January 2003Published inissue 1 December 1964https://pubs.acs.org/doi/10.1021/jo01035a643https://doi.org/10.1021/jo01035a643research-articleACS PublicationsRequest reuse permissionsArticle Views21Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Soap‐based detergent formulations: XI. Alternate synthesis and structural assignment of sodium methyl alkylbenzoylsulfopropionates (1975)

Abstract Sodium methyl alkylbenzoylsulfopropionates, derived from detergent alkylates, previously were reported to be good lime soap dispersing agents and beneficial additives in tallow soap based, sodium silicate built laundry detergents. Their synthesis from β‐aroylacrylic acid intermediates has been facilitated by sulfonation with sodium bisulfite before esterification. This single phase process occurs rapidly at room temperature, whereas in the previously reported process, the sulfonation of the methyl ester requires a two‐phase, high temperature, closed system procedure. Final esterification is mandatory for producing a useful lime soap dispersing agent, because the sulfonated disodium salt is a poor lime soap dispersing agent and not compatible with a soap‐silicate mixture. Deoiling improves the detergency of the final products from either procedure; this is especially apparent when polyester‐cotton permanent press fabric is laundered. Data from NMR spectra, base‐induced decompositions, hydrolysis studies, and detergency screening tests suggest that the sulfopropionate product derived from the new procedure is structurally the same as that from the old one, and that these products have been sulfonated regiospecifically α to the carboxy group.
Stable Glucopyranosylpalladium Complexes with cis-beta-Hydrogen. A Six-Membered Ring Metallocycle with an Oxygen Donor Ligand. (1985)

Two stable glucopyranosylpalladium complexes, chloro[1,3-dimethyl-5-(3,4,6-tri-O-acetyl-2-deoxy-alpha-D -arabinohexopyranosyl)-2,4(1H,3H)-pyrimidinedionnato] (triphenylphosphine)-palladium and the corresponding triphenylarsine analog, were studied using fast atom bombardment mass spectrometry, 1H, 13C and 31P nuclear magnetic resonance, UV and IR spectroscopy to establish structures for these complexes. The data obtained indicate that the pyranosyl ring is in a chair conformation in which palladium (C2'), acetoxy (C3' C4') and acetoxymethyl (C5') are equatorial and 1,3-dimethyl-2,4(1H,3H) pyrimidinedion-5-yl (C1') is axial. The palladium(II) ion is encompassed in a six-membered ring metallocycle in which C2' of the glucopyranosyl ring and the oxygen of the C4 carbonyl of the pyrimidinedionyl group occupy adjacent ligand sites. The other two ligand sites on square planar palladium are occupied by triphenylphosphine (or triphenylarsine) cis to C2' and trans to carbonyl oxygen, and chloride trans to C2' and cis to oxygen. This stable metallocycle has three unusual features, a cis-beta-hydrogen, a six-membered Pd-containing ring and an oxygen donor ligand. Its surprising stability is due to conformational barriers to the proper alignment of Pd with pyranosyl ring substituents required for elimination reactions.
Society News - Spring 2001 (2001)

In this edition of Society News we present an editorial by Paul A. Kohl.
Clinical significance of PD-L1 protein expression on tumor-associated macrophages in lung cancer (2015)

Meeting abstracts Tumor PD-L1 expression is associated with increased tumor-infiltrating lymphocytes (TILs) in diverse solid tumors, including lung cancer. In addition, PD-L1 upregulation in tumor and/or stromal immune cells has been associated with increased clinical benefit to PD-1/PD-L1 axis
[Causative factors resulting in intractability of congenital hydrocephalus--analysis of psychomotor development and MRI findings of the brain in sixteen congenitally hydrocephalic patients]. (1997)

Sixteen patients out of 58 children with congenital hydrocephalus were retrospectively investigated in terms of their psychomotor development and morphological findings of the brain by magnetic resonance imaging (MRI), and morphological backgrounds of the brain in patients affected by "intractable hydrocephalus" were intended to be clarified. The 16 patients were primarily diagnosed as having aqueductal stenosis or communicating hydrocephalus during the era before introduction of MRI. On the basis of the rate of head growth, sixteen patients were divided into three groups; group-1: overt neonatal hydrocephalus (5 cases) ; group-2: rapidly progressive hydrocephalus with normal head circumference at birth (5 cases); and group-3: slowly progressive hydrocephalus with its onset after the neonatal period (6 cases). Psychomotor development of the 16 cases was analyzed by using various methods including the Tanaka-Binet intelligence test and WISC-R. Four cases in group-1 and all cases in group-2 were found to have IQ or DQ below 50, while the other remaining cases were found to have IQ of 82 in group-1 (one case) and IQ ranging from 67 to 113 in group-3. MRI performed in those 9 cases with IQ below 50 revealed various morphological abnormalities of the brain. Those abnormalities were characterized by disturbance of organogenesis and/or histogenesis of the brain dating from the first 20 weeks of fetal life. It is strongly suggested that in the pathogenesis of intractable hydrocephalus developmental malformation of the brain occurring during the first 20 weeks of gestation are involved. Functional and morphological impairments of the brain possibly caused by progression of fetal hydrocephalus and delay of CSF diversion before and after birth seem important in the pathogenesis of intractable hydrocephalus.
Surface permanent magnet synchronous motor optimization design: Hooke Jeeves method versus genetic algorithms (2010)

This paper focuses on the optimal design of surface permanent magnet synchronous motors. A comparison between Hooke Jeeves method and genetic algorithm is presented. The mathematical model of motor is an analytical model based on the equivalent magnetic circuit considering magnetic saturation. The objective function is a global cost function that could be balanced, between initial active material cost or their total weight and motor efficiency, by choosing adequate weighting factors.
Optimizing Postprandial Glucose Management in Adults With Insulin-Requiring Diabetes: Report and Recommendations (2019)

Faster-acting insulins, new noninsulin drug classes, more flexible insulin-delivery systems, and improved continuous glucose monitoring devices offer unprecedented opportunities to improve postprandial glucose (PPG) management and overall care for adults with insulin-treated diabetes. These developments led the Endocrine Society to convene a working panel of diabetes experts in December 2018 to assess the current state of PPG management, identify innovative ways to improve self-management and quality of life, and align best practices to current and emerging treatment and monitoring options. Drawing on current research and collective clinical experience, we considered the following issues for the ∼200 million adults worldwide with type 1 and insulin-requiring type 2 diabetes: (i) the role of PPG management in reducing the risk of diabetes complications; (ii) barriers preventing effective PPG management; (iii) strategies to reduce PPG excursions and improve patient quality of life; and (iv) education and clinical tools to support endocrinologists in improving PPG management. We concluded that managing PPG to minimize or prevent diabetes-related complications will require elucidating fundamental questions about optimal ways to quantify and clinically assess the metabolic dysregulation and consequences of the abnormal postprandial state in diabetes and recommend research strategies to address these questions. We also identified practical strategies and tools that are already available to reduce barriers to effective PPG management, optimize use of new and emerging clinical tools, and improve patient self-management and quality of life.
An object position and orientation IC with embedded imager (1991)

A CMOS VLSI chip that determines the position and orientation of an object against a dark background is described. The chip operates in a continuous-time analog fashion, with a response time as short as 200 mu s and power consumption under 50 mW. A self-contained phototransistor array acquires the image directly, and the output is a set of eight currents from which the position and orientation can be found. The output can be sampled at up to 5000 frames/s, and there is a greatly reduced analog-digital (A-D) conversion requirement (per frame) for real-time interfacing with a digital system. Orientation is determined to within +or-2 degrees or better for moderately sized and sufficiently elongated objects. Chip dimensions are 7900 mu m*9200 mu m.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Remote Field Site Space Suit Mobility Study Results (1999)

<div class="section abstract"><div class="htmlview paragraph">Advanced space suit mobility studies were successfully conducted during the period of May 2-17, 1998, under representative Lunar and Mars-like terrain conditions at remote field site locations in the Flagstaff, Arizona, area. The sites visited included Cinder Lake, a volcanic ash area that was an actual Apollo-era test site with simulated craters developed by the United States Geological Survey (USGS); SP Mountain, an area that contained a young lava field with extensive rock rubble; Grand Falls, a canyon area that contained a variety of rock outcroppings, volcanic ash, and rock rubble; and Meteor Crater, a young impact crater area that contained various slopes with loose rock rubble. The test activities were supported by a team of JSC personnel utilizing the MK III advanced space suit technology demonstrator suit and a NASA modified commercial liquid air backpack system. The suit test subject was Dr. Dean Eppler, a trained field geologist.</div><div class="htmlview paragraph">The purpose of the test activities was to obtain and quantify both subjective and objective (3-dimensional mobility analysis data) evaluations concerning general mobility characteristics of the advanced space suit mobility demonstration model while performing representative EVA surface exploration and mockup science module development task activities in geomorphically relevant (Lunar/Mars-like) terrestrial locations.</div><div class="htmlview paragraph">In addition to the evaluation of the mobility features of the advanced space suit demonstrator, engineering assessments were conducted in the utility and functionality of the self-contained liquid air back pack and the performance and suitability of the logistics support vehicle support system in a remote field site setting as opposed to controlled laboratory conditions.</div><div class="htmlview paragraph">This paper discusses the results and lessons learned generated during the test activities.</div><div class="htmlview paragraph">The information developed as a result of these test activities will be useful in determining the suitability of the various representative mobility and support systems performance technology features in regard to future Lunar and Mars space suit design application.</div></div>
Laparoscopic approach for islet cell transplantation. (1992)

Islet transplantation has received increasing attention since the recent reports of prolonged insulin independence following human islet allotransplantation.1 In most of the cases, the islets have been implanted through a laparotomy. We have now explored the laparoscopic approach for implantation of purified islets.
Longitudinal TSPO expression in tau transgenic P301S mice predicts increased tau accumulation and deteriorated spatial learning (2020)

Monitoring of TSPO expression as a surrogate of microglial activation in P301S tau transgenic mice by μPET indicates a delayed time course when compared to amyloid-β mouse models. Detrimental associations of microglial activation with outcome parameters are opposite to earlier data in amyloid-β mouse models. The contribution of microglial response to pathology accompanying amyloid-β and tau over-expression merits further investigation.
Synthesis of the carbocyclic analogue of the antiviral nucleoside (E)-5-(2-bromovinyl)-2′-deoxyuridine (1986)

The cyclopentanecarboxylic acid (1) was converted via the isocyanate (2) and the urea (5) into carbocyclic uridine (12). Similarly, the α- and β-epimers of carbocyclic 2′-deoxyuridine, (19a) and (19b), were synthesized from the acids (13). Compounds (19b) and (19a) were further modified to afford carbocyclic (E)-5-(2-bromovinyl)-2′-deoxyuridine (25b) and its α-epimer (25a), respectively.
Novel regioselective chlorination of aliphatic ketones via mono-organothallium(III) derivatives (1986)

J. Glaser and I. Toth, J. Chem. Soc., Chem. Commun., 1986, 1336 DOI: 10.1039/C39860001336
12 Gbps GaAs 2-bit multiplexer/demultiplexer chip set for the SONET STS-192 system (2003)

Ultra-high-speed 2-b multiplexer (MUX) and demultiplexer (DEMUX) ICs have been developed for next-generation optical fiber communication systems in the SONET (synchronous optical network), which will require data bit rates of about 10 Gb/s. The ICs were fabricated using a 0.5- mu m WN/sub x/-gate process and were operated up to 12 Gb/s by adopting a tree-type architecture with a large phase margin and a new on-chip transmission line called the ladder grounded coplanar line. These ICs are applicable to future optical fiber communication systems (STS-192) as key devices.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Investigation of fiber Bragg gratings for high-power, multi-mode, XLMA-based fiber lasers (2019)

Within the EKOLAS consortium, which is part of the BmBF-funded Effilas (Efficient high-performance laser beam sources) research alliance, we are developing Fiber Bragg Gratings (FBGs) written in extra-large mode area (XLMA) fibers. By using FBGs as fiber integrated output mirrors, which is state-of-the-art in single-mode fiber lasers, we aim to reduce complexity and increase robustness and reliability of multi-mode fiber resonators. To this end, we are investigating the use of FBGs as outcoupling mirrors with a reflectivity below 10 % in XLMA high-power multi-mode fiber lasers. As a first step, FBGs are written into a passive 105/125 μm multi-mode fiber. We present their application for frequency stabilization of a resonator based on XLMA fibers, and tested the FBGs up to an output power of 150 W at 1075 nm without failure. As the next step, transition from passive 105/125 μm fibers to active XLMA fibers is currently being investigated. For FBG inscription, we use a phase mask and an ultra-fast laser system (100 fs, 800 nm). The setup is adjustable in three translation and three rotation axes. Additionally it features a modular mechanical design for fast and flexible interchanging of fiber mounts, phase mask and process optics. The FBGs are pre-characterized in transmission with a white-light source and an optical spectrum analyzer.
Syntheses of 3, 5-Substituted-2-Oxazolidones by the Reaction between N-Arylurethans and Substituted Phenyl Glycidyl Ethers (1966)

A new reaction to synthesize 3, 5-substituted-2-oxazolidone from .N-phenylurethane and phenyl glycidyl ether has previously been discovered by the authors. In the present study, this reaction was applied to the reactions between N-arylurethanes and aryl glycidyl ethers. Twelve types of urethanes and 9 types of glycidyl ethers were synthesized and used for the study in various combinations. In all cases, 3-aryl-5-aryloxymethyl-2-oxazolidones were formed with no difficulty. Versatility of the reaction has thus been established. The synthetic procedures and the properties of the oxazolidone derivatives are described in detail.