gebhart/patrepeval huggingface dataset:
Petrogel: New Hydrocarbon (Oil) Absorbent Based on Polyolefin Polymers (2016)

We discuss a new class of polymer absorbents called “petrogels”, polyolefin-based hydrophobic absorbents that demonstrate selective absorption of hydrocarbon (oil) molecules in water, counterpart to “hydrogels” that are known for absorbing aqueous solutions. To understand the effects of the molecular structure (i.e., polymer composition, cross-linking density, and morphology) to the absorption capacity with various hydrocarbons and mixtures, a systematical study was conducted involving polyolefin copolymers that exhibit a highly swellable network but no dissolution in hydrocarbons at ambient temperature. They include a set of semicrystalline poly(ethylene-co-1-octene) thermoplastics (metallocene-LLDPEs) with low crystallinity, melting temperature, and various morphologies (i.e., pellets, films, and foams) and a set of cross-linked amorphous poly(1-decene-co-divinylbenzene) (x-D-DVB) elastomers with low cross-linking densities. The absorption study involves pure hydrocarbons (toluene and heptane), refined oil products (gasoline and diesel), and Alaska North Slope (ANS) crude oil. In addition, the Flory–Rehner theory is also applied to determine the network structure (i.e., cross-linking density and molecular weight between cross-links) and provide the structure–property relationships. In the good solvent (absorbate) condition, the absorption capacity is basically controlled by the network structure. The maximum absorption capacities of semicrystalline LLDPE and amorphous x-D-DVB elastomer with toluene can reach 35 and 43 times that of the polymer weight, respectively. However, in the mixed hydrocarbon conditions, the absorption profile is determined by a combination of absorbate composition and absorbent network structure and morphology. With a specific LLDPE foam, for the first time we have been able to achieve the absorption capacity of ANS crude oil >26 times.
A charge recycle refresh for Gb-scale DRAM's in file applications (1994)

A charge recycle refresh for low-power DRAM data-retention, featuring alternative operation of two memory arrays, is proposed, and demonstrated using a 64 kb test chip with 0.25 /spl mu/m technology. After amplification in one array, the charges in that array are transferred to another array, where they are recycled for half amplification. The data-line current dissipation is only half that of the conventional refresh operation, and the voltage bounce of the power supply line is 60% of the conventional. This scheme is further extended for application to n arrays with 1/n data-line current dissipation. Moreover, the multi-array activation with charge recycle refresh is proposed, in which the same peak current as in the conventional scheme is achieved with a small number of refresh cycles for refreshing all the cells.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Dynamic linear precoding for the exploitation of known interference in MIMO broadcast systems (2009)

This paper introduces a novel channel inversion (CI) precoding scheme for the downlink of phase shift keying (PSK)-based multiple input multiple output (MIMO) systems. In contrast to common practice where knowledge of the interference is used to eliminate it, the main idea proposed here is to use this knowledge to glean benefit from the interference. It will be shown that the system performance can be enhanced by exploiting some of the existent inter-channel interference (ICI). This is achieved by applying partial channel inversion such that the constructive part of ICI is preserved and exploited while the destructive part is eliminated by means of CI precoding. By doing so, the effective signal to interference-plus-noise ratio (SINR) delivered to the mobile unit (MU) receivers is enhanced without the need to invest additional transmitted signal power at the MIMO base station (BS). It is shown that the trade-off to this benefit is a minor increase in the complexity of the BS processing. The presented theoretical analysis and simulations demonstrate that due to the SINR enhancement, significant performance and throughput gains are offered by the proposed MIMO precoding technique compared to its conventional counterparts.
Reconstruction of C-1 lateral mass with titanium mesh cage after resection of an aneurysmal bone cyst of the atlas (2009)

Aneurysmal bone cysts (ABCs) are rare benign tumors with a prevalence of 0.14 cases per 100,000 people. A majority of cases arise during adolescence, and there is a female predominance. This lesion accounts for 1.4% of all primary bone tumors. Aneurysmal bone cysts occur mainly in the long bones, with spinal involvement in 10-30% of cases. Cervical spine ABCs account for about one-third of spinal ABCs, and atlas involvement occurs in 1% of cases. Resection of ABCs at the atlas is difficult because of the location and the lack of proper instrumentation for reconstruction of C-1. The authors present a case of an ABC at C-1 in a child who underwent resection of the lesion and reconstruction of the lateral mass with a titanium mesh cage.
The TE Promoter Element of the Histone H1t Gene Is Essential for Transcription in Transgenic Mouse Primary Spermatocytes1 (1998)

Transcriptional activation of the testis-specific histone H1t gene occurs in pachytene primary spermatocytes during spermatogenesis. Specific binding of testis nuclear proteins to a rat histone H1t promoter sequence, designated the H1t/TE element, correlates with the onset of transcription. This element, located between the H1t/AC box and the H1t/CCAAT box, contains inverted repeats of a shorter element. When the native rat H1t gene along with flanking sequences, including 2453 base pairs (bp) upstream and 3784 bp downstream from the coding region, was microinjected into mouse embryos, the offspring of the resulting transgenic mice transcribed the transgene in a tissuespecific manner and only in primary spermatocytes. In the present study the TE promoter element was deleted and replaced with a heterologous stuffer DNA fragment. When the mutant rat DNA fragment was used to create transgenic mice, offspring of the mice bearing the promoter mutation did not transcribe the rat H1t gene in any tissue. On the other hand, transcription of the rat H4t transgene, which is located approximately 1.5 kilobases downstream from the H1t gene, occurred in these animals. Therefore, these studies support the hypothesis that the TE element is essential for enhanced testis-specific transcription of the H1t gene in primary spermatocytes.
BabelNet: Building a Very Large Multilingual Semantic Network (2010)

In this paper we present BabelNet - a very large, wide-coverage multilingual semantic network. The resource is automatically constructed by means of a methodology that integrates lexicographic and encyclopedic knowledge from WordNet and Wikipedia. In addition Machine Translation is also applied to enrich the resource with lexical information for all languages. We conduct experiments on new and existing gold-standard datasets to show the high quality and coverage of the resource. © 2010 Association for Computational Linguistics.
Pharmacokinetics and Clinical Evaluation of <sup>125</sup> I-Radiolabeled Humanized CC49 Monoclonal Antibody (HuCC49ΔC <sub>H</sub> 2) in Recurrent and Metastatic Colorectal Cancer Patients (2005)

C(H)2 region deletion of HuCC49DeltaC(H)2 MAb did not alter the pharmacokinetics compared to murine CC49. The favorable partition coefficient K of HuCC49DeltaC(H)2 MAb into tumors supports its use in RIGS.
A new calibration method of adaptive array for TDD systems (2003)

This paper proposes a new calibration method for adaptive base station antennas that is suitable for TDD communication systems; it offers real-time calibration. The effectiveness of the proposed calibration method is also demonstrated using an experimental adaptive array testbed. This paper first shows the distortion in the radiation pattern due to the amplitude and phase variations over time. The proposed calibration method is then described. Finally, a comparison of the measured radiation pattern between transmission and reception modes is shown that confirms the effectiveness of the proposed calibration method.
<title>Medium-sized grazing incidence high-energy x-ray telescopes employing continuously graded multilayers</title> (1993)

We present a concept of continuously graded multilayer structures for medium-sized x-ray telescopes which is based on several material combinations. We show that the theoretical reflectivity characteristics of these structures make them very advantageous when applied to high energy x-ray grazing incidence telescopes. We consider the performance of continuously graded Ni/C multilayers in a multi-focus, Kirkpatrick-Baez geometry and show a significant improvement when compared to standard coatings of gold. For a total length of 3.3 m, a total aperture of 48 cm by 48 cm, and 64 foci, we obtain an effective area of 250 cm<SUP>2</SUP> at 60 keV and a FWHM field of view of 6 feet. We also show that a modular array of conical telescopes (conical approximation to a Wolter-I geometry), with the same length and aperture provides similar effective areas. Energy-dispersive x-ray reflectivity data (15 - 70 keV) is presented for the first continuously graded multilayer of this kind.
<i>In Vitro</i>and<i>in Vivo</i>Structure-Activity Relationships of Novel Androgen Receptor Ligands with Multiple Substituents in the B-Ring (2005)

We recently reported two nonsteroidal androgen receptor (AR) ligands that demonstrate tissue-selective pharmacological activity, identifying these S-3-(phenoxy)-2-hydroxy-2-methyl-N-(4-nitro-3-trifluoromethyl-phenyl)-propionamide analogs as the first members of a new class of drugs known as selective androgen receptor modulators. The purpose of these studies was to explore additional structure-activity relationships of selective androgen receptor modulators to enhance their AR binding affinity, AR-mediated transcriptional activation, and in vivo pharmacological activity. The AR binding affinity (K(i)) of 29 novel synthetic AR ligands was determined by a radioligand competitive binding assay and ranged from 1.0-51 nM. Compounds with electron-withdrawing substituents at the para- and meta-positions of the B-ring demonstrated the highest AR binding affinity. The AR-mediated transcriptional activation was determined using a cotransfection assay in CV-1 cells. Most compounds with two substituents in the B-ring maintained or improved their functional activity in vitro. However, compounds with three halogen substituents exhibited significant regioselectivity. Fifteen compounds were selected to examine their pharmacological activity in castrated rats. In vivo pharmacological activity and selectivity were significantly changed by structural modification in the B-ring. Compounds with halogen groups at the para- and meta-positions of the B-ring displayed the highest pharmacological activity. Incorporating substituents at the ortho-position of the B-ring resulted in poor pharmacological activity. In vitro and in vivo agonist activities were partially correlated. In conclusion, novel selective androgen receptor modulators with improved in vivo pharmacological activity can be designed and synthesized based on the structure-activity relationship identified in these studies.
<sup>13</sup>C NMR spectra of 1,3,4‐thiadiazole/thiadiazoline isomeric pairs (1980)

Abstract The 13 C NMR spectra of four pairs of 1,3,4‐thiadiazole/thiadiazoline isomers have been recorded using broad band and off‐resonance proton decoupling techniques and in the coupled mode. Differences in the chemical shifts of the heterocyclic ring and the carbonyl carbons allow identification of the isomer present. Their IR and UV spectra are in agreement with literature reports for azole/azoline analogues.
Distonia Cervical e Tremor Distónico Atípico de Provável Etiologia Traumática (2007)

A distonia cervical pós-traumática é uma sequela rara do traumatismo crânio-encefálico. Os autores descrevem o caso clínico de um doente com distonia cervical e movimentos involuntários sugestivo de tremor distónico que surgiram após um traumatismo cefálico. A relação entre o trauma e o desenvolvimento de movimentos involuntários é difícil de provar, sobretudo na presença de estudos de neuro-imagem normais. O traumatismo pode ser um factor precipitante da distonia cervical em indivíduos geneticamente susceptíveis. Alguns doentes com distonia focal, como torcicolo, apresentam um tremor postural moderado dos membros superiores. Actualmente, dado não haver marcadores biológicos, é difícil determinar se o tremor postural é parte integrante da síndroma distónica focal ou se reﬂecte a presença de ambos, distonia focal e tremor essencial.
Are the Major Effects of P-Glycoprotein Modulators Due to Altered Pharmacokinetics of Anticancer Drugs? (1996)

Agents (modulators) that reverse the in vitro resistance of tumor cells to anticancer drugs that are substrates for P-glycoprotein (Pgp, the product of the MDR1 gene) have been given to patients concurrently with anticancer drugs in an attempt to improve therapeutic response. The vast majority of investigations into these drugs indicate that Pgp modulators decrease the systemic clearance of anticancer drugs, thus potentially nonselectively increasing exposure to normal and malignant cells and thereby potentially increasing the severity and/or incidence of adverse effects associated with the anticancer therapy. Mechanisms by which Pgp modulators could alter the pharmacokinetics of the anticancer agent include competition for cytochrome P450 intestinal or liver metabolism, inhibition of Pgp-mediated biliary excretion or intestinal transport, or inhibition of renal elimination. It is suggested that administration of Pgp modulators is unlikely to improve the therapeutic index for anticancer drugs unless agents that lack significant pharmacokinetic interactions are found. Moreover, it will likely be required that there be some cancer-tissue selectivity for modulators in order to avoid collaterally increasing the sensitivity of normal Pgp-expressing tissues to the anticancer drug.
Resonance Radiation and Excited Atoms (1972)

First printed in 1934, this book gives a critical survey of the principles and limitations of methods for studying resonance radiation that is the re-emission of absorbed radiation without change of wavelength and of the theoretical interpretation of the phenomenon. At the time of first publication, physicists had come to the limit of the then existing techniques in the field and the book was more useful to astronomers who were interested in line shapes existing in the spectra of stars. In past years other fields and techniques have developed for which the information in this book is of interest. These fields are: (1) those having to do with the determination of spins, magnetic moments and hyperfine structure separations by the methods of 'optical pumping' and 'optical double resonance': (2) optical MASERS; and (3) nuclear resonance absorption of gamma rays.
Lung registration using the NiftyReg package (2010)

Abstract. The EMPIRE 2010 grand challenge is a contest on lung im-age registration. This paper describes the implementation that has been used by the Niftyreggers team, as well as the results. The registrations were performed using a block-matching approach and the free-form de-formation algorithm for global and local registration respectively. 1
Studies on Fungicides. VIII. Synthesis and Antifungal Activity of Some Thiocyanatoimidazoles, Thiocyanatotriazoles, and 1-(4-Thiocyanatophenyl) pyrazoles. (1964)

2-Thiocyanatoimidazoles, 3-thiocyanato-1, 2, 4-triazoles, and 1-(4-thiocyanatophenyl)-pyrazoles were synthesized. Antifungal activity of these compounds was examined. Some of 3-thiocyanato-1, 2, 4-triazoles and 1-(4-thiocyanatophenyl) pyrazoles showed highly antifungal activity.
Multi-Objective Optimization of Energy Saving Control for Air Conditioning System in Data Center (2019)

A multi-objective optimization scheme is proposed to save energy for a data center air conditioning system (ACS). Since the air handling units (AHU) and chillers are the most energy consuming facilities, the proposed energy saving control scheme aims to maximize the saved energy for these two facilities. However, the rack intake air temperature tends to increase if the energy saving control scheme applied to AHU and chillers is conducted inappropriately. Both ACS energy consumption and rack intake air temperature stabilization are set as two objectives for multi-objective optimization. The non-dominated sorting genetic algorithm II (NSGA-II) is utilized to solve the multi-objective optimization problem. In order for the NSGA-II to evaluate fitness functions that are both the ACS total power consumption and AHU outlet cold air temperature deviations from a specified range, neural network models are utilized. Feedforward neural networks are utilized to learn the power consumption models for both chillers and AHUs as well as the AHU outlet cold air temperature based on the recorded data collected in the field. The effectiveness and efficiency of the proposed energy saving control scheme is verified through practical experiments conducted on a campus data center ACS.
Modeling soil thermal and carbon dynamics of a fire chronosequence in interior Alaska (2002)

In this study, the dynamics of soil thermal, hydrologic, and ecosystem processes were coupled to project how the carbon budgets of boreal forests will respond to changes in atmospheric CO 2 , climate, and fire disturbance. The ability of the model to simulate gross primary production and ecosystem respiration was verified for a mature black spruce ecosystem in Canada, the age‐dependent pattern of the simulated vegetation carbon was verified with inventory data on aboveground growth of Alaskan black spruce forests, and the model was applied to a postfire chronosequence in interior Alaska. The comparison between the simulated soil temperature and field‐based estimates during the growing season (May to September) of 1997 revealed that the model was able to accurately simulate monthly temperatures at 10 cm ( R > 0.93) for control and burned stands of the fire chronosequence. Similarly, the simulated and field‐based estimates of soil respiration for control and burned stands were correlated ( R = 0.84 and 0.74 for control and burned stands, respectively). The simulated and observed decadal to century‐scale dynamics of soil temperature and carbon dynamics, which are represented by mean monthly values of these variables during the growing season, were correlated among stands ( R = 0.93 and 0.71 for soil temperature at 20‐ and 10‐cm depths, R = 0.95 and 0.91 for soil respiration and soil carbon, respectively). Sensitivity analyses indicate that along with differences in fire and climate history a number of other factors influence the response of carbon dynamics to fire disturbance. These factors include nitrogen fixation, the growth of moss, changes in the depth of the organic layer, soil drainage, and fire severity.
Characterization of radiation damage and thermal annealing effects on thallium bromide nuclear radiation detectors (2002)

In this study, TlBr detectors were irradiated with 25 MeV protons accelerated by an AVF cyclotron. Isothermal annealing was performed to restore the performance of the detectors. In order to characterize the radiation damage and thermal annealing effects on the TlBr detectors, we measured current-voltage (I-V) characteristics, mobility-lifetime (/spl mu//spl tau/) products and spectrometric responses. The I-V and /spl mu//spl tau/ measurements suggest that electron traps have been induced by 25 MeV protons in the TlBr crystals. X- and /spl gamma/-ray energy spectra were measured for two different electronic conditions: the electric signals induced mainly by electron carriers traversing the crystal were used for one case and the signal induced by hole carriers were used in the other case. After irradiation of 25 MeV protons, the /sup 241/Am X- and /spl gamma/-ray spectra obtained in the former showed significantly degraded energy resolution. No degradation of energy resolution, however, was observed in the latter case. Noticeable improvements of the degraded detector performance have been observed after the thermal annealing.
O cuidado de crianças em creches: um espaço para a enfermagem (2003)

In this article, we discuss the care of newborns and infants in day nurseries. We approach childcare within an historical perspective, emphasizing the current childhood situation. Based on the present conceptions of care and caring, and the Lei das Diretrizes e Bases da Educação Nacional n. 9394/96 (Brazilian Guiding and Bases Law for the National Education no. 9394/96) we discuss the childcarers’ qualification for attending children up to two years old in day nurseries. Considering the education level currently held by nursing professionals, we consider them qualified for the role of providing day care. In this sense, we identify the day nursery as an important social and political space for nursing.
Optical electron transfer in mixed solvents. Major energetic effects from unsymmetrical secondary coordination (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOptical electron transfer in mixed solvents. Major energetic effects from unsymmetrical secondary coordinationJoseph T. Hupp and Jane WeydertCite this: Inorg. Chem. 1987, 26, 16, 2657–2660Publication Date (Print):August 1, 1987Publication History Published online1 May 2002Published inissue 1 August 1987https://doi.org/10.1021/ic00263a021RIGHTS & PERMISSIONSArticle Views79Altmetric-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 InReddit PDF (524 KB) Get e-Alerts Get e-Alerts
Efficient strip to slot waveguide mode converter using fast quasi-adiabatic approach (2020)

Abstract We present an ultra-compact strip to slot waveguide mode converter to facilitate excellent fundamental mode coupling between the strip and slot waveguide over a broad wavelength range. The design utilizes tapered waveguide geometries for adiabatic mode conversion. The taper profiles are optimized using a fast quasi-adiabatic approach to achieve the adiabatic mode conversion within the smallest possible length. We numerically demonstrate a conversion efficiency of 99.4% at a wavelength 1.55 μ m with a variation of <1.5% over a bandwidth of 100 nm and <5% over a bandwidth of 200 nm. In addition, the design is ultra-compact with a footprint of only 1.23 × 3.7 μ m 2 and offers a high tolerance to the possible fabrication inaccuracies.
Influence of cold plastic deformation on critical pitting potential of AISI 316 L and 304 L steels in an artificial physiological solution simulating the aggressiveness of the human body (1977)

The effect of cold working on critical pitting potential of AISI 316 L and 304 L steels in a buffered physiological solution has been studied. In particular, the importance of deformation degree, orientation of the specimen surface to the deformation direction, and cold working temperature in lowering the critical pitting potential is shown.