gebhart/patrepeval huggingface dataset:
Structural Systematics of Rare Earth Complexes. V. The Hydrated 1 : 1 Adducts of 2,2′:6′,2″-Terpyridine With the Lanthanoid(III) Chlorides (1994)

Detailed examination of the strucures of the title salts, (tpy)LnCl3.xH2O, across the totality of the rare earth series shows a remarkable interplay of structural type and detail. The predominant phase is the previously studied monoclinic Cm array, a ˜ 7.5, b ˜ 16.6, c ˜ 9.8 ?, ß = 90.2°, V ˜ 2200 ?3, Z = 2 formula units. For the initial members of the series (La ? Nd ), x is 8; for Dy ? Er and Lu, x = 7 is accommodated within the same lattice, as are intermediate degrees of hydration for Sm ? Gd . A second monoclinic phase, P 21/c, a ˜ 11.6, b ˜ 13.9, c ˜ 13.8 ?, ß ˜ 92.3°, V ˜ 2200 ?3, Z = 4 formula units, is found for Yb and Lu (x = 7); the same phase but with ß acute (a ˜ 11.3, b ˜ 14.5, c ˜ 13.3 ?, ß ˜ 82.2°, V ˜ 2140 ?3, Z = 4 formula units) is found for Tm (and Y) (x = 6). A less hydrated binuclear phase, x=1, has also been observed for Sm , a 10.179(3), b 9.928(4), c 9.748(4) ?a 112.61(3), ß 109.85(3), ? 94.72(3)°, V 829.3 ?3, Z = 1 dimer.
Design and Implementation of the POWER5 TM Microprocessor (2004)

offers significantly increased performance over previous POWER designs by incorporating simultaneous multithreading, an enhanced memory subsystem, and extensive RAS and power management support. The 276M transistor processor is implemented in 130nm silicon-on-insulator technology with 8-level of Cu metallization and operates at >1.5 GHz.
THE REACTION OF HYDROGEN SULFIDE WITH SULFOXIDES (1976)

Abstract The reaction of hydrogen sulfide with a series of dialkyl sulfoxides yielding sulfur, water and the corresponding dialkyl sulfide has been examined. The kinetics indicate the existence of important intermediates. These have been confirmed spectroscopically and shown to be ionic in character by conductimetric studies. A mechanism is proposed which accommodates the requirement for participation of ionic intermediates. Some suggestions are offered for the process whereby the S8 species is built up from molecularly distinct sulfur atoms.
A Wideband Smart EMF Detector for Mobile Devices (2020)

A wideband electromagnetic field (EMF) sensor system is introduced in this study. This small form factor, low-cost system is intended for use with smart mobile devices and can precisely measure the imminent field strength through the combination of a wideband omnidirectional receive antenna, RF, and audio mixing front-end as well as signal processing algorithm in the mobile unit. A detection dynamic range of 30 dB is shifted toward the high-field intensity regimes to enable its use as a hazardous EM field detector. The total diameter of the device was 13 cm with a cylindrical thickness of 1.6 mm (standard FR4), and it can interface with the audio port of any mobile device including cell-phones or tablets. Field strengths in the range of 5 V/m–50 V/m can be detected in approximately by 10 MHz–3 GHz RF transmission bands. Cite this article as: Tekin A. A Wideband Smart EMF Detector for Mobile Devices. Electrica, 2021; 21(1): 115-120.
A Three-Dimensional Registration Method for MicroUS/MicroPET Multimodality Small-Animal Imaging (2007)

Small-animal models are used extensively in disease research, genomics research, drug development and developmental biology. The development of noninvasive small-animal imaging techniques with adequate spatial resolution and sensitivity is therefore of prime importance. In particular, multimodality small-animal imaging can provide complementary information. This paper presents a method for registering high-frequency ultrasonic (microUS) images with small-animal positron-emission tomography (microPET) images. Registration is performed using six external multimodality markers, each being a glass bead with a diameter of 0.43-0.60 mm, with 0.1 microl of [18F]FDG placed in each marker holder. A small-animal holder is used to transfer mice between the microPET and microUS systems. Multimodality imaging was performed on C57BL/6J black mice bearing WF-3 ovary cancer cells in the second week after tumor implantation and rigid-body image registration of the six markers was also performed. The average registration error was 0.31 mm when all six markers were used and increased as the number of markers decreased. After image registration, image segmentation and fusion are performed on the tumor. Our multimodality small-animal imaging method allows structural information from microUS to be combined with functional information from microPET, with the preliminary results showing it to be an effective tool for cancer research.
Contribuições da perspectiva sistêmica para a comunicação no contexto organizacional (2013)

Este artigo busca observar o fenômeno da interação entre organizações e sociedade, tendo como referência a Teoria dos Sistemas Sociais, de Luhmann (2010). Essa fundamentação teórica sustenta que as organizações são sistemas sociais que se fecham para lidar com a complexidade do mundo, caso contrário provavelmente não sobreviveriam. No entanto, esse fechamento é apenas operacional, já que, para evoluir, elas interagir com o ambiente. Sob essa perspectiva, entendemos que, embora as organizações estejam cada vez mais presentes nas redes sociais, essa inserção tem sido acompanhada por um tensionamento entre os princípios interativos e participativos característicos dessas plataformas digitais e os princípios de racionalidade, observação e programação que fundamentam a lógica organizacional.http://dx.doi.org/10.5902/2175497710361
4D UTE flow: A phase-contrast MRI technique for assessment and visualization of stenotic flows (2014)

For both steady and pulsatile high flow rates, the measured flow distal to the stenotic narrowing using conventional 4D flow revealed more than 20% error compared to the ground-truth flow. This error was reduced to less than 5% using the 4D UTE flow technique.
Improving Classification of an Industrial Document Image Database by Combining Visual and Textual Features (2014)

The main contribution of this paper is a new method for classifying document images by combining textual features extracted with the Bag of Words (BoW) technique and visual features extracted with the Bag of Visual Words (BoVW) technique. The BoVW is widely used within the computer vision community for scene classification or object recognition but few applications for the classification of entire document images have been submitted. While previous attempts have been showing disappointing results by combining visual and textual features with the Borda-count technique, we're proposing here a combination through learning approach. Experiments conducted on a 1925 document image industrial database reveal that this fusion scheme significantly improves the classification performances. Our concluding contribution deals with the choosing and tuning of the BoW and/or BoVW techniques in an industrial context.
Transmission of 40 Gbps signals through metropolitan networks engineered for 10 Gbps signals (2006)

A critical emerging technology for advanced DWDM systems is 40 Gbps transmission support. The use of 40 Gbps channels increases the DWDM capacity by the factor of four, supports interconnection of next generation IP routers at OC-768 and saves OpEx and CapEx due to having to deploy and maintain fewer channels to provide the same capacity, needing fewer spare transponder modules. A key design driver for 40 Gbps technology is that it should seamlessly integrate with existing 10 Gbps systems without requiring changes to the common equipment, including ROADM technology. Parameters that must be analyzed to a greater degree at the 40 Gbps transmission rate include chromatic dispersion, PMD, and filtering effects. This analysis is based on the experiment on deployment of 43 Gb/s PSBT signals over an existing 10 Gb/s DWDM system with cascaded ROADMs that we reported on last year (M. Boduch et al., 2005).
Josephson pseudorandom bit-sequence generator (1988)

A nine-bit Josephson pseudorandom bit-sequence generator for use in Josephson computers and signal processors is described. The gates used in the circuit are modified variable threshold logic (MVTL) gates fabricated using 2.5- mu m Nb-AlO/sub x/-Nb junction technology with Mo resistors and SiO/sub 2/ insulation. They are driven by a three-phase power supply. The circuit consists of 66 gates and its area is 4.2*0.5 mm/sup 2/. Correct bit sequences with one period of 2/sup 9/-1=511 clocks were obtained. Its power consumption was 0.9 mW. The circuit operated at a clock frequency of up to 2.2 GHz.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
545. Dimethylsulphoxylideneureas and dimethylsulphoxylidene-thioureas (1965)

R. Wehr, J. Chem. Soc., 1965, 3004 DOI: 10.1039/JR9650003004
Exploiting Higher Order Modes for Grating Lobe Reduction in Scanning Phased Array Antennas (2019)

A new approach is proposed to reduce the grating lobes by exciting higher order modes of conical radiation patterns in microstrip phased array antennas with a one-wavelength element spacing for medium- and wide-scan angles. The proposed concept utilizes the scanning and nulling capabilities of combined higher order modes of a circular microstrip patch as an antenna element in a seven-element hexagonal array. These elements facilitate providing suitable radiation-matched patterns for wide-scanned angles and simultaneously reducing the grating lobes for large element spacing in the order of one wavelength. In particular, for the scan angles of 35°-75°, two higher order modes, namely the TM21 and TM31, are excited and the grating lobes are reduced to well below -30 dB. The proposed method is also shown to be effective for near the horizon scanning with a $0.8\lambda _{\mathrm {o}}$ element spacing.
Performance of Synthesized Amine-based Corrosion Inhibitors in Concentrated HCl Acid Solutions: Effect of Intensifier (2012)

Abstract Mono and diamine compounds were synthesized from 1, 12-dodecanediamaine, and evaluated as acid corrosion inhibitors for coiled tubing steel. The inhibition behavior of these compounds in concentrated HCl acid was examined using a gravimetric method. Weight loss tests were conducted in 28 wt% HCl acid at 60, 70 and 80°C for 2 hours. The results showed that both mono and diamine inhibitors exhibited a good protection efficiency for coiled tubing steel in 28 wt% HCl acid. However, monoamine compounds showed better performance. Addition of an intensifier was effective to enhance protection efficiency for both amine moiety compounds where more than 99% protection was obtained for some inhibitors. The effect of intensifier concentration on inhibition efficiency is also addressed in this paper. The results obtained are very promising and suggest that some of examined corrosion inhibitors have a good potential to be used in acid stimulation treatments of oil/gas wells.
False Negative Sentinel Lymph Node Biopsies in Melanoma May Result From Deficiencies in Nuclear Medicine, Surgery, or Pathology (2008)

An FN SN can occur because of deficiencies in nuclear medicine, surgery, or pathology. qRT can detect "occult" metastatic melanoma in SNs that have been identified as negative by histopathology.
The Action of Elementary Fluorine upon Organic Compounds. XIV. The Fluorination of Deactivated Aromatic Rings<sup>1</sup> (1950)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Action of Elementary Fluorine upon Organic Compounds. XIV. The Fluorination of Deactivated Aromatic Rings1Alfred R. Gilbert and Lucius A. BigelowCite this: J. Am. Chem. Soc. 1950, 72, 6, 2411–2417Publication Date (Print):June 1, 1950Publication History Published online1 May 2002Published inissue 1 June 1950https://doi.org/10.1021/ja01162a017Request reuse permissionsArticle Views82Altmetric-Citations6LEARN 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 InReddit PDF (855 KB) Get e-Alertsclose Get e-Alerts
Quantitative interpretation of pulsed neutron capture logs: Part 2 — Inversion of measurements in thinly bedded formations (2011)

Abstract We have developed an inversion method to reduce shoulder-bed effects on pulsed neutron capture (PNC) logs for estimating layer-by-layer-capture cross sections Σ. The method is based on a previously developed rapid approximation of PNC logs. Tests performed on synthetic examples that include a variety of lithology, saturating-fluid, and bed-thickness configurations confirm the efficiency, reliability, and stability of the inversion procedure. Inversion consistently improves the vertical resolution and Σ definition of PNC logs across beds thinner than 45 cm. Our fast, iterative algorithm inverts Σ logs in seconds of CPU time and is therefore suitable for joint petrophysical interpretation with other open- and cased-hole logs.
Milli-Joule energy-level comb and supercontinuum generation in atmospheric air-filled inhibited coupling Kagome fiber (2015)

A ~1000 THz wide and 150 nJ/nm energy spectral-density supercontinuum, and a Raman comb wider than 300 THz are generated in atmospheric air-confined in inhibited coupling Kagome fibers for the first time.
Evaluation of anatomical structure and non-uniform distribution of imaging agent in near-infrared fluorescence-enhanced optical tomography (2005)

To date, the assessment of fluorescence-enhanced optical imaging has not been performed owing to (i) the lack of tools necessary for objective assessment of image quality (OAIQ), and (ii) the difficulty to test an untested diagnostic contrast agent in patient studies. Herein, we focus upon the development of a framework for OAIQ which includes a model to simulate both natural tissue heterogeneity as well as heterogeneous distribution of a molecularly targeted fluorophore. Specifically, we use a novel tomographic algorithm previously developed and validated in our laboratory (Roy and Sevick-Muraca, IEEE Trans. Med. Imaging, 2005). Our results show that image generation is (i) unaffected by normal anatomical heterogeneity manifested in endogenous tissue optical properties of absorption and scattering, and (ii) restricted by heterogeneous distribution of fluorophore in the background as the contrast is decreased.
Hydrocarbon Ions in the Ionospheres of Titan and Jupiter (1995)

Two examples are given of models of ion chemistry in reducing atmospheres: Titan, which is a satellite of Saturn, and Jupiter, the largest of the gas giants. In both ionospheres, layers of hydrocarbon and/or C, H, and N-containing ions have been predicted to appear, with larger ions dominating at lower altitudes. Altitude profiles are presented for individual C1- and C2-hydrocarbon ions and larger ions that are represented for example, as C(x)H(y)(+) and C(x)H(y)N(x)(+). The accuracy of the predictions is, however, limited by the availability of information about the chemistry of these ions. In addition to rate coefficients and product channels for ion-molecule reactions, dissociative recombination coefficients and branching ratios are needed for many hydrocarbon and and related ions.
Germin, a protein marker of early plant development, is an oxalate oxidase (1993)

Germin is a homopentameric glycoprotein, the synthesis of which coincides with the onset of growth in germinating wheat embryos. There have been detailed studies of germin structure, biosynthesis, homology with other proteins, and of its value as a marker of wheat development. Germin isoforms associated with the apoplast have been speculated to have a role in embryo hydration during maturation and germination. Antigenically related isoforms of germin are present during germination in all of the economically important cereals studied, and the amounts of germin-like proteins and coding elements have been found to undergo conspicuous change when salt-tolerant higher plants are subjected to salt stress. In this report, we describe how circumstantial evidence arising from unrelated studies of barley oxalate oxidase and its coding elements have led to definitive evidence that the germin isoform made during wheat germination is an oxalate oxidase. Establishment of links between oxalate degradation, cereal germination, and salt tolerance has significant implications for a broad range of studies related to development and adaptation in higher plants. Roles for germin in cell wall biochemistry and tissue remodeling are discussed, with special emphasis on the generation of hydrogen peroxide during germin-induced oxidation of oxalate.
Environmental applications of chiral HPLC and development of new chiral stationary phases (2000)

When a molecule is asymmetric (chiral), it can have a non-superposable mirror image, or enantiomer. Because organisms constitute an asymmetric (chiral) environment and most enzymatic pathways are stereoselective, organisms selectively metabolize and accumulate chiral compounds. Therefore, the biological activities and properties of the two enantiomers of a chiral pesticide are often different. About a quarter of pesticides on the market are chiral but a majority of them are sold as racemates, a 1:1 mixture of two enantiomers. Current regulations treat chiral pesticide mixtures as if they were only single compound. The U.S. Environmental Protection Agency (EPA) has not developed any method to analyze chiral pesticides in the environment. The Rio Grande Valley study unit of the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program studied the occurrence and distribution of a total of forty pesticides and their metabolites in the surface water of the Mesilla Valley in New Mexico and Texas. Among those selected pesticides, seven are chiral. Again, this research ignored chirality in the entire analysis. This can lead to incorrect toxicological, distribution, and degradation data. To raise the awareness of the fact that enantiomers are not identical, this research was focused on developing methods to resolve chiral pesticides. High Performance Liquid Chromatography (HPLC) was used for this application. A commercial pharmaceutical analysis chiral method development kit was used to analyze six pesticide stereoisomer mixtures. The pesticides were selected from the 1994 NAWQA Program. Three pesticide stereoisomer mixtures were separable on three different columns. The instrumental detection limit and detection linear range of chiral HPLC of these analytes were determined. Combining SW-846 Method 3540C and chiral HPLC the efficient extraction (>86%) from soil of a chiral pesticide, Napropamide, was demonstrated. The difference in the degradation of the two enantiomers of Napropamide in soil was also studied. The asymmetric synthesis and enzymatic resolution of trans-2-(1-methyl-1-phenylethyl)cyclohexanol (TCC) and trans-2-(1-methyl-1-phenylethyl)-cyclohexylamine (TCCA) were both attempted with the goal of manufacturing new HPLC chiral stationary phases (CSP). The enantiorecognition of the CSPs was tested.
Gain adaptation based on signal-to-noise ratio for noise suppression (2009)

In this paper we describe a technique that uses adaptive gain control to achieve noise suppression in speech signals. The method used to map the dynamic range of the signal is based on the human auditory perceptual model. Since the processing is based on the model of human perception, the resulting noise suppressed speech is natural sounding. The computational complexity of the proposed method is low and the mapping of the dynamic range of the signal has a low delay. Because of these properties, this method is ideal for real-time implementation.
Regulation of low density lipoprotein receptor activity in freshly isolated human lymphocytes. (1976)

Circulating human lymphocytes freshly isolated from venous blood of 15 normal subjects exhibited a low capacity to bind, take up, and degrade 125I-labeled low density lipoprotein (LDL). However, when these cells were incubated for 72 h in the absence of lipoproteins, they gradually acquired in increased number of high affinity cell surface receptors for LDL. The increase in the number of LDL receptors was associated with a 16-fold increase in the rate at which the cells were able to take up and degrade the lipoprotein. The LDL binding and degradation processes that developed in normal lymphocytes exhibited the following characteristics; (a) high affinity (saturation was achieved at LDL concentrations below 50 mug protein/ml); (b) specificity (unlabeled LDL was much more effective than human high density lipoprotein or other plasma proteins in competing with 125I-LDL for binding to the LDL receptor); and(c) feedback regulation (the increase in the number of LDL receptors that appeared after incubation of freshly isolated lymphocytes in lipoprotein-deficient medium was prevented by exposure of the cells to either LDL or a mixture of 25-hydroxycholesterol plus cholesterol but not to HDL). Freshly isolated lymphocytes obtaine from three subjects with the homozygous form of familial hypercholesterolemia failed to develop normal amounts of LDL receptor activity when incubated in medium devoid of lipoproteins. The current data indicate: (a) that the LDL receptors that appear on the surface of cholesterol-deprived, normal human lymphocytes are genetically identical to the previously characterized LDL receptors of cultured human fibroblasts and long-term lymphoid cells and (b) that at least one cell type in the human body, the circulating human lymphocyte, has the capacity to produce a high affinity LDL receptor that mediates the cellular uptake and degradation of plasma LDL.
Mill-Scale Application of Enzymatic Pitch Control During Paper Production (1996)

Pitch problems are the most common in papermaking process in the world. The mechanism in the degradation of resinous materials in wood during seasoning of logs was studied because the seasoning might be the best way to prevent the problems. From the results of the study, an enzymatic pitch control method was developed. Lipase hydrolyzes triglycerides to fatty acids and glycerol, therefore other resinous materials may not be coagulated without triglycerides cores. When lipase was added into groundwood pulping process, the effect of the enzyme addition on the product quality was detected in the long term. The enzyme did not spoil the quality and rather gave a good effect on the product. After the establishment of this technology, several mills in Japan have started to use it.