gebhart/patrepeval huggingface dataset:
The Effect of Elasticity on Displacement Efficiency in the Lab and Results of High Concentration Polymer Flooding in the Field (2008)

Abstract The elasticity of polymer solution is usually disregarded in the studies of polymer flooding. The common viewpoint is that the displacement efficiency is determined by the ratio of the pressure gradient and interfacial tension in the system. But new studies show, when the pressure gradient and interfacial tension are constant, that visco-elastic polymer flooding can achieve higher displacement efficiency (De). In this paper, based on theoretical analysis and through large amounts of core tests on homogeneous water-wet and slightly oil-wet artificial cores, the influence of visco-elasticity of polymer solutions with different concentrations on De were studied at different capillary numbers (determined by the ratio of pressure gradient to interfacial tension). The results show that when the capillary numbers are the same, the higher the flooding fluid's elasticity, the higher the De and the lower the residual oil saturation in both oil-wet and water-wet cores. In the range of these tests, the effect of elasticity on De is about the same as that of ultra-low interfacial tension chemical flooding. It can also been seen that residual oil starts to mobilize at a lower capillary number with higher elasticity driving fluids. In addition, flooding experiments in the lab on heterogeneous cores by high concentration polymer fluid show that the higher the concentration and viscosity of the driving fluid, the higher the De. High concentration polymer flooding was tested in 3 fields and show that the additional recovery is nearly 2 times that of conventional polymer flooding, obtaining an incremental recovery of more than 20%OOIP. This conclusion is useful in further understanding the mechanism of polymer flooding, and it can provide further basis for choosing chemicals and determining chemical flooding designs in the field.
Peripheral vascular disease: evaluation with stepping DSA and conventional screen-film angiography. (1994)

The advantages of S-DSA can be achieved while the diagnostic adequacy of SFA is maintained. However, SFA was considered superior in three of four subjective characteristics.
Understanding dogs' neural responses in a food-giving paradigm (2018)

In their target article, Cook et al. provide exciting new insights into dogs’ neural responses when they watch their caregivers giving food to a fake dog or placing it into a bucket. The use of fMRI in awake and unrestrained dogs is tremendously valuable for understanding canine emotionality. We worry, however, that it is too soon to conclude that the reported pattern of amygdala activation corresponds to a specific emotion. Further testing will be essential to determine whether this amygdala activation is indeed an expression of jealousy.
Bioactivation of Halogenated Hydrocarbons by Cytochrome P4502E1 (1993)

Numerous halogenated hydrocarbons of the alkane, alkene, and alkyne classes are metabolized by P450 enzymes to products that elicit cytotoxic and/or carcinogenic effects. Such halogenated hydrocarbons include anesthetics (e.g., halothane and enflurane) and industrial solvents (e.g., carbon tetrachloride, chloroform, and vinylidine chloride). Formation of reaction intermediates from these compounds occurs via P450-promoted dehalogenation, reduction, or reductive oxygenation, with certain hydrocarbons undergoing all three reaction types. Of the multiple forms of P450 present in liver microsomes, P4502E1 has been identified as the primary catalyst of hydrocarbon bioactivation in animals and, most likely, in humans as well. As hepatic concentrations of this P450 enzyme are highly inducible by ethanol and similar agents, prior exposure to 2E1-inducing compounds can play a pivotal role in halogenated hydrocarbon toxicity. Considering that metabolism governs the cytotoxicity and carcinogenicity of halogenated hydrocarbons, an understanding of the mechanism(s) underlying 2E1 induction in man becomes all the more important.
Micro-electrodischarge machining (1997)

As the number of materials and devices used in micro-engineering continues to expand, so does the number of viable manufacturing techniques. One of the more recent techniques used to fabricate devices from electrically-conductive materials is micro-electrodischarge machining (μ-EDM). Micro-EDM is a generic term that encompasses at least four different EDM processes, some of which are used synergistically to create novel products that cannot be made economically by other processes. The four μ-EDM processes are: wire electrodischarge grinding (WEDG), μ-EDM by die-sinking, μ-wire electrodischarge machining (μ-WEDM) and μ-electrodischarge grinding (μ-EDG). Each of these processes has unique attributes that allow certain types of components to be fabricated with relative ease. (2 pages)
Furopyridines. <b>XVII</b>. Cyanation, chlorination and nitration of furo[3,2‐<i>b</i>]pyridine <i>N</i>‐oxide (1996)

Abstract The N ‐oxide 2 of furo[3,2‐ b ]pyridine ( 1 ) was cyanated by the Reissert‐Henze reaction with potassium cyanide and benzoyl chloride to give 5‐cyano derivative 3 , which was converted to the carboxamide 4 , carboxylic acid 5 , ethyl ester 6 and ethyl imidate 8 . Chlorination of 2 with phosphorus oxychloride yielded 2‐9a , 3‐ 9b , 5‐ 9c and 7‐chloro derivative 9d . Reaction of 9d with sodium methoxide, pyrrolidine, N,N ‐dimethylformamide and ethyl cyanoacetate afforded 7‐methoxy‐ 10 , 7‐(1‐pyrrolidyl)‐ 11 and 7‐dimethylaminofuro[3,2‐ b ]pyridine ( 14 ) and 7‐(1‐cyano‐1‐ethoxy‐carbonyl)methylene‐4,7‐dihydrofuro[3,2‐ b ]pyridine ( 12 ). Nitration of 2 with a mixture of fuming nitric acid and sulfuric acid gave 2‐nitrofuro[3,2‐ b ]pyridine N ‐oxide ( 15 ).
Image Retrieval Based on MD5 (2008)

A new image retrieval method was introduced based on the combination of CBIR (content-based image retrieval) and MD5, after a brief introduction to current status of image retrieval technology. Kernel thought was that MD5 value was extracted from an image file and then indexed. These indexed MD5 values were used for image retrieval. Implementation of the method showed that the new image retrieval method is feasible and good for improvement of accuracy of the image retrieval rate.
Functional Anatomy of the Drosophila MicroRNA-generating Enzyme (2007)

In Drosophila melanogaster, the multidomain RNase III Dicer-1 (Dcr-1) functions in tandem with the double-stranded (ds)RNA-binding protein Loquacious (Loqs) to catalyze the maturation of microRNAs (miRNAs) from precursor (pre)-miRNAs. Here we dissect the molecular mechanism of pre-miRNA processing by the Dcr-1-Loqs complex. The tandem RNase III (RIII) domains of Dcr-1 form an intramolecular dimer such that one RIII domain cleaves the 3' strand, whereas the other cuts the 5' strand of pre-miRNA. We show that the functional core of Dcr-1 consists of a DUF283 domain, a PAZ domain, and two RIII domains. Dcr-1 preferentially associates with the Loqs-PB splice isoform. Loqs-PB uses the second dsRNA-binding domain to bind pre-miRNA and the third dsRNA-binding domain to interact with Dcr-1. Both domains of Loqs-PB are required for efficient miRNA production by enhancing the affinity of Dcr-1 for pre-miRNA. Thus, our results provide further insights into the functional anatomy of the Drosophila miRNA-generating enzyme.
Acid-catalyzed hydrolysis and monolayer properties of ketal-based cleavable surfactants (1990)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAcid-catalyzed hydrolysis and monolayer properties of ketal-based cleavable surfactantsDavid A. Jaeger, Jamshid Mohebalian, and Philip L. RoseCite this: Langmuir 1990, 6, 3, 547–554Publication Date (Print):March 1, 1990Publication History Published online1 May 2002Published inissue 1 March 1990https://pubs.acs.org/doi/10.1021/la00093a005https://doi.org/10.1021/la00093a005research-articleACS PublicationsRequest reuse permissionsArticle Views347Altmetric-Citations31LEARN 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
Pelvic endometriosis: MR imaging. (1989)

The value of magnetic resonance (MR) imaging at 0.35 T in detecting, characterizing, and staging pelvic endometriosis was prospectively investigated in 30 consecutive women in whom this disease was clinically suspected. MR findings were correlated with the results of laparoscopy (13 women) and laparotomy (17 women). Surgical examination revealed a normal pelvis in five patients and endometriosis in 25. Three of the five normal cases and 16 of the 25 cases of endometriosis were correctly identified with MR imaging (sensitivity, 64%; specificity, 60%; accuracy, 63%). MR imaging demonstrated seven of eight endometriomas but only 14 of 29 adhesions and only six of 45 endometrial implants. While MR imaging demonstrated endometriomas, ovarian adhesions, and extraperitoneal endometrial implants, it could not accurately depict extraovarian endometrial adhesions and intraperitoneal endometrial implants. In addition, MR imaging findings did not correlate with the surgically determined severity of the disease. These limitations indicate that MR imaging cannot be used as the primary modality in the detection, characterization, and staging of endometriosis; laparoscopy remains the procedure of choice.
IV.—Notes on the Vertebrata of the Pre-Glacial Forest Bed Series of the East of England (1882)

The occurrence of Fish-remains among the “Forest Bed” Vertebrata attracted the attention of some of the earlier writers on Norfolk Geology; but it is only within the last few years that any of these fish have been specifically determined. Mr. A. Bell in the Proceed, of the Geol. Assoc. 1871, included the Pike and Perch in his list of “Forest Bed” Vertebrata, and the same two species are given by Mr. A. Savin in the Proceed, of the Norwich Geol. Soc. for 1878, p. 27. The fish mentioned by Sir C. Lyell from Mundesley (Lond. and Edinb. Phil. Mag. ser. 3, vol. xvi. p. 345, 1840) were from the Post-Glacial River Bed.
Comparative Efficacy of Varied Concentrations Imidacloprid in the Laboratory Management of Termites (Microtermes natalensis) (2019)

Imidacloprid is a termiticide that is slow-acting timber and soil applied but can be transferred in termite workers. The objective of this study was to determine efficacy of imidacloprid to control of termites on sand. Termiticides were tested at Imidacloprid 200 g/L concentrations (2 mL/L, 4 mL/L, 6 mL/L and 8 m/L) were tested. Descriptive analysis presented the mean weight loss for wood blocks under treated sand as follows E. grandis 0.003 (Std: 0.02) and G. robusta 0.013 (Std: 0.04) whereby only woodblocks under treated sand with 2 mL/L were attacked, while the mean weight loss for untreated woods under untreated sand were as follows E. grandis was 0.1 (std: 0.06) and G. robusta was 0.216 (std: 0.147). However, termites attacked all untreated wood blocks regardless of wood species. It was concluded that Imidacloprid at concentration of 4 mL/L serves as the best concentration threshold required in the control of termites on sand in the management of termites. It was recommended that soil is effective mode of applying imidacloprid termiticide integratedly given that the right concentration levels are utilized.
Bevacizumab with 5-fluorouracil, leucovorin, and oxaliplatin versus bevacizumab with capecitabine and oxaliplatin for metastatic colorectal carcinoma: results of a large registry-based cohort analysis (2014)

According to this large registry-based analysis, XELOX and FOLFOX regimens have similar effectiveness for use in combination with bevacizumab in the first-line treatment of mCRC. Multiple metastatic sites and the presence of metastatic disease at diagnosis were the strongest negative predictors of OS regardless of backbone chemotherapy regimen.
Rapid Inhibition of the Sperm Protease Acrosin by Protein C Inhibitor (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRapid Inhibition of the Sperm Protease Acrosin by Protein C InhibitorJosephine M. Hermans, Roy Jones, and Stuart R. StoneCite this: Biochemistry 1994, 33, 18, 5440–5444Publication Date (Print):May 10, 1994Publication History Published online1 May 2002Published inissue 10 May 1994https://pubs.acs.org/doi/10.1021/bi00184a012https://doi.org/10.1021/bi00184a012research-articleACS PublicationsRequest reuse permissionsArticle Views88Altmetric-Citations54LEARN 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
189 kW all-fiberized and polarization-maintained amplifiers with narrow linewidth and near-diffraction-limited beam quality (2016)

In this manuscript, we demonstrate high power, all-fiberized and polarization-maintained amplifiers with narrow linewidth and near-diffraction-limited beam quality by simultaneously suppressing detrimental stimulated Brillouin scattering (SBS) and mode instability (MI) effects. Compared with strictly single frequency amplification, the SBS threshold is scaled up to 12 dB, 15.4 dB, and higher than 18 dB by subsequently using three-stage cascaded phase modulation systems. Output powers of 477 W, 1040 W, and 1890 W are achieved with full widths at half maximums (FWHMs) of within 6 GHz, ~18.5 GHz, and ~45 GHz, respectively. The MI threshold is increased from ~738 W to 1890 W by coiling the active fiber in the main amplifier. Both the polarization extinction ratio (PER) and beam quality (M2 factor) are maintained well during the power scaling process. To the best of our knowledge, this is the first demonstration of all-fiberized amplifiers with narrow linewidth, near linear polarization, and near-diffraction-limited beam quality at 2 kW power-level.
Double-stapling technique for mechanical circular oesophagojejunal anastomosis after total gastrectomy (1994)

Double-stapling technique for mechanical circular oesophagqejunal anastomosis after total gastrectomy
<title>Materials For Transparent Heat Mirror Coatings</title> (1982)

Transparent heat mirrors can be constructed from single- or multi-layer coatings. For single-layer mirrors wide-band-gap semiconductors are the best available materials. The required fundamental semiconductor properties are reviewed and experimental data of binary and ternary compounds discussed.
Distributed Multidisciplinary Optimization of a Turbine Blade Regarding Performance, Reliability and Castability (2016)

Modern aero-engine blades are optimized for high performance and long service life, but manufacturing requirements are not considered adequately during the design process. Thus, time-consuming, iterative re-designs become necessary until a producible component evolves. The multidisciplinary design optimization method presented in this paper addresses not only the aerodynamic efficiency and structural reliability of a new turbine blade, but also ensures the castability of the design and thereby accelerates the entire design process and reduces the time-to-production. Because real casting process simulations are very time-intensive, they were substituted by checks of experimentally and numerically validated geometrical constraints. Different engineering tools were assembled in a joint process chain using an integration framework, which manages and distributes the calculations and hence the workload in a shared network. Based on a preliminary design of a new turbine section, the selected initial low pressure turbine blade was neither castable nor reliable. The multidisciplinary optimization achieved a blade design that satisfies the requirements for a successful casting process, has a low failure probability and, although not as high as from a pure aerodynamic optimization, exhibits an efficiency improvement.
The Effect of Meanders on the Kinetic Energy Balance of the Gulf Stream (1961)

Calculations have been made, using surface velocity observations, of the horizontal transfer of kinetic energy from meanders to mean flow at two separate localities in the Gulf Stream System. In both cases, it was found that there was a surface flow of kinetic energy from the meanders to the mean flow, exactly opposite to what would be expected if the meanders were frictionally driven. The observations suggest that the meanders derive energy from sources other than the kinetic energy of the mean flow. The role of the meanders in relation to the mean Gulf Stream appears analogous to that of large-scale eddies in relation to the general circulation of the atmosphere.
Phase Transfer Catalyzed Melt Synthesis of Diaryl Sulfides (1984)

Abstract The phase transfer catalyzed interaction of sodium sulfide with molten aryl halides is described. The yields of diaryl sulfide are greater than 50% when activating groups such as cyano, nitro, phthalimido, and anhydrido are present on the aromatic ring. In the absence of these activating groups the yields are less than 2%. The effect of parameters such as reaction temperature, reactant concentration and the nature of the phase transfer catalyst on the reaction yields are also reported. This procedure is especially useful for activated substrates that are sensitive to side reactions in dipolar aprotic solvents.
Polymer Nanocomposites for Aerospace Applications: Properties (2003)

Abstract Polymer nanocomposites may provide significantly increased modulus, gas barrier, thermal performance, atomic oxygen resistance, resistance to small molecule permeation and improved ablative performance when compared to typical traditional carbon‐fiber‐reinforced polymeric composites. This presentation gives a review on both theoretical and experimental investigations extracting valuable fundamental elements including field emission, thermal stability, and electrical, optical and mechanical properties of polymer nanocomposites for aerospace applicability.
E-cadherin and DAP kinase in pancreatic adenocarcinoma and corresponding lymph node metastases (2006)

E-cadherin and DAP kinase have been implicated as 'invasion suppressor' genes in human cancer. The aim of this study was to analyze the methylation status of E-cadherin and DAP kinase and the expression of the protein in the metastatic lesions and to compare it with the expression in the primary tumor. Methylation-specific PCR of the DAP kinase and E-cadherin promoter was performed in 28 primary adenocarcinomas of the pancreas and in 13 corresponding regional lymph node metastases. The presence of E-cadherin and DAP kinase protein was assessed by immunohistochemistry. Metastatic lymph nodes showed a significant different expression profile from the primary tumor. E-cadherin methylation was observed in 8/28 (29%) and loss of protein expression was observed in 16/28 (57%) of pancreatic carcinomas. E-cadherin methylation was observed in 7/13 (54%) and loss of protein expression was observed in 11/13 (85%) lymph node metastases (p=0.047). DAP kinase methylation occurred in 11/28 (39%) pancreatic carcinomas and loss of protein expression was observed in 13/28 (46%). DAP kinase was methylated in 6/13 (46%) lymph node meta-stases and loss of protein expression was observed in 10/13 (77%) (p=0.039). Comparing primary tumor and corresponding lymph node metastases in 13 cases, the status of E-cadherin methylation was discordant in 2 cases. The protein expression pattern of E-cadherin and DAP kinase was discordant in 4 and 3 cases respectively. Unmethylated tumor samples did not express E-cadherin in 12 and DAP kinase protein in 6 cases. Our results demonstrate that reduction of E-cadherin and DAP kinase expression is more frequent in lymph node metastases than in the primary tumor and methylation of the promoter region contributes to this reduction; however, an alternative mechanism of inactivation seems to exist.
Percepção de licenciandos em química sobre multiculturalismo a partir de um estudo de caso (2017)

O presente artigo tem como objetivo apresentar para discussao resultados de um estudo investigativo sobre as percepcoes, de um grupo de licenciandos em quimica de uma Instituicao de Ensino Superior Federal, a respeito do multiculturalismo durante as aulas da disciplina de Estagio Supervisionado para o Ensino de Quimica IV. Para isso, o estudo se apoiou nas ideias de Candau, Moreira e McLaren. Os dados foram coletados por meio de textos escritos e, sua analise se deu pela via do discurso textual, tomando como base a perspectiva Bakhtiniana. Os dados nos mostram que os licenciandos possuem percepcoes superficiais acerca dos pressupostos multiculturalistas, sendo perceptivel ainda a nao apropriacao por parte de alguns licenciandos de elementos teoricos que compoem esse campo do conhecimento, apesar dos discursos mencionarem em alguns pontos aspectos relacionada a contextualizacao e a inter-relacao entre contexto e conceito cientificos em aulas de quimica, elementos que compoem uma perspectiva multicultural de ensino.
Dominance of T-Helper 2–Type Cytokines After Severe Injury (1996)

These data indicate that a shift to a Th2-type splenocyte cytokine response occurs late, at 7 days after injury. Modulation of Th cell cytokine responses may partially explain defects observed in cellular immune responses in postinjury states. Therapies that augment Th1-type cytokine production and/or neutralize Th2-type cytokines may prove beneficial.
m-Roam: a service invocation and roaming framework for pervasive computing (2004)

This paper proposes an architectural framework for integrating services within an enterprise and accessing them from mobile devices in a pervasive-computing environment. Present network environments are prone to failures from disconnections and device crashes. Being able to maintain service transaction while moving to different locations and wireless networks (known as service roaming), is currently a major objective in pervasive and mobile computing research. This paper presents a framework (called m-Roam) that allows for mobile clients to perform service invocation and roaming. The framework addresses this problem by introducing a proxy-based architecture so that invocation context and transaction state can be maintained or updated accordingly, while the user roams in different locations.