gebhart/patrepeval huggingface dataset:
Determination of {sup 125}I and {sup 131}I in radioisotope wastes (2007)

In order to measure a low activity of {sup 125}I and {sup 131}I in radioisotope wastes, we took into consideration various sample preparation and separation methods, such as an acid decomposition, an acid leaching and a combustion method. In a previous study, the maximum chemical yield of iodine by an acid leaching was found to be 78.0 %. However, in this study, the maximum chemical yield of the acid decomposition method and the combustion method with a radioiodine reference solution was found to be 99.1 % and 84.5 %, respectively. We selected the acid decomposition method for the analysis of radioisotope waste samples due to its high chemical yield and short preparation and separation time. The chemical yield of the acid decomposition method depends on the reaction time at each experimental stage, added amount of H{sub 3}PO{sub 3} and H{sub 2}O{sub 2}, and the pH of the condensed solution and the condition of the AgI precipitation. The important point for the highest recovery rate from a acid decomposition method is to maintain enough reaction time and pour 10 ml of 30 % H{sub 3}PO{sub 3} before a distillation, and drop 1 ml of H{sub 2}O{sub 2} when the condensed solutionmore » is trapped in the Florence flask. Through a study of the acid decomposition method we found an optimal preparation and separation method of {sup 125}I and {sup 131}I in radioisotope wastes due to the merits of a short reaction time and high recovery rate, and a counting system was applied to LEPS for the {sup 125}I and HP Ge gamma-ray spectrometer for {sup 131}I. (authors)« less
Pimpling of Automotive Enamel Systems (1941)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPimpling of Automotive Enamel SystemsR C. Krueger, L. W. Schaefer, and J. S. LongCite this: Ind. Eng. Chem. 1941, 33, 2, 239–245Publication Date (Print):February 1, 1941Publication History Published online1 May 2002Published inissue 1 February 1941https://pubs.acs.org/doi/10.1021/ie50374a022https://doi.org/10.1021/ie50374a022research-articleACS PublicationsRequest reuse permissionsArticle Views22Altmetric-Citations1LEARN 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 options Get e-Alerts
Absorption kinetics are a key factor regulating postprandial protein metabolism in response to qualitative and quantitative variations in protein intake (2009)

We have previously demonstrated that increasing the habitual protein intake widened the gap in nutritional quality between proteins through mechanisms that are not yet fully understood. We hypothesized that the differences in gastrointestinal kinetics between dietary proteins were an important factor affecting their differential response to an increased protein intake. To test this hypothesis, we built a 13-compartment model providing integrative insight into the sequential dynamics of meal nitrogen (Nm) absorption, splanchnic uptake, and metabolism, and subsequent peripheral transfer and deposition. The model was developed from data on postprandial Nm kinetics in certain accessible pools, obtained from subjects having ingested a (15)N-labeled milk or soy protein meal, after adaptation to normal (NP) or high (HP) protein diets. The faster absorption of Nm after soy vs. milk caused its earlier and stronger splanchnic delivery, which favored its local catabolic utilization (up to +30%) and limited its peripheral accretion (down to -20%). Nm absorption was also accelerated after HP vs. NP adaptation, and this kinetic effect accounted for most of the HP-induced increase (up to +20%) in splanchnic Nm catabolic use, and the decrease (down to -25%) in peripheral Nm anabolic utilization. The HP-induced acceleration in Nm absorption was more pronounced with soy than with milk, as were the HP effects on Nm regional metabolism. Our integrative approach identified Nm absorption kinetics, which exert a direct and lasting impact on Nm splanchnic catabolic use and peripheral delivery, as being critical in adaptation to both qualitative and quantitative changes in protein intake.
Recognition of LPS by TLR4: Potential for Anti-Inflammatory Therapies (2014)

LPS molecules of marine bacteria show structures distinct from terrestrial bacteria, due to the different environment that marine bacteria live in. Because of these different structures, lipid A molecules from marine bacteria are most often poor stimulators of the Toll-like receptor 4 (TLR4) pathway. Due to their low stimulatory potential, these lipid A molecules are suggested to be applicable as antagonists of TLR4 signaling in sepsis patients, where this immune response is amplified and unregulated. Antagonizing lipid A molecules might be used for future therapies against sepsis, therapies that currently do not exist. In this review, we will discuss these differences in lipid A structures and their recognition by the immune system. The modifications present in marine lipid A structures are described, and their potential as LPS antagonists will be discussed. Finally, since clinical trials built on antagonizing lipid A molecules have proven unsuccessful, we propose to also focus on different aspects of the TLR4 signaling pathway when searching for new potential drugs. Furthermore, we put forward the notion that bacteria probably already produce inhibitors of TLR4 signaling, making these bacterial products interesting molecules to investigate for future sepsis therapies.
-Cu<sub>3</sub>V<sub>2</sub>O<sub>8</sub>: magnetic ordering in a spin-1/2 Kagom -staircase lattice (2003)

The spin-1/2 Cu2+ ions in beta-Cu3V2O8 occupy the sites of a Kagome-staircase lattice, an anisotropic variant of the Kagome net: buckled layers and imbedded plaquettes of three edge-shared CuO4 squares break the ideal Kagome symmetry. Susceptibility and heat capacity measurements show the onset of short-range ordering at approximately 75 K, and a magnetic phase transition with the characteristics of antiferromagnetism at ~29 K. Comparison to the Curie Weiss theta (theta,CW = -135 K) indicates that the geometric frustration is largely relieved by the anisotropy. A ferromagnetic contribution to the magnetization below the ordering temperature and negative magnetization in zero-field cooled measurements at low fields are attributed to uncompensated spins at grain boundaries or defects.
No Evidence for Additional Blood–Brain Barrier P-Glycoprotein Dysfunction in Alzheimer's Disease Patients with Microbleeds (2012)

Decreased blood-brain barrier P-glycoprotein (Pgp) function has been shown in Alzheimer's disease (AD) patients using positron emission tomography (PET) with the radiotracer (R)-[(11)C]verapamil. Decreased Pgp function has also been hypothesized to promote cerebral amyloid angiopathy (CAA) development. Here, we used PET and (R)-[(11)C]verapamil to assess Pgp function in eighteen AD patients, of which six had microbleeds (MBs), presumably reflecting underlying CAA. No differences were found in binding potential and nonspecific volume of distribution of (R)-[(11)C]verapamil between patient groups. These results provide no evidence for additional Pgp dysfunction in AD patients with MBs.
Generation of Agammaglobulinaemic Mice by Prenatal and Postnatal Exposure to Polyclonal or Monoclonal Anti‐IgM Antibodies (1986)

Improved experimental conditions are described for the treatment of mice with anti-IgM antibody, which subsequently lead to B-cell deficiency and agammaglobulinaemia. Antibody transmitted via maternal milk alone was found to be more efficient in inducing suppression of serum immunoglobulin isotypes than prenatal transmission or postnatal intraperitoneal injections alone. However, the combined treatment by all three routes of exposure to anti-IgM resulted in total B-cell suppression associated with undetectable levels of all serum immunoglobulin isotypes. Furthermore, suppression of B-cell generation was also achieved with a rat monoclonal mu-specific antibody. The possibility of generating agammaglobulinaemic mice may be useful for investigating the influence of B cells on the generation of T-cell reactivities, and for analysing the effects of monoclonal antibodies in the absence of interfering serum immunoglobulin.
Adrenal and gonadal autoimmune diseases. (1995)

Journal Article Adrenal and gonadal autoimmune diseases Get access B R Smith, B R Smith Search for other works by this author on: Oxford Academic Google Scholar J Furmaniak J Furmaniak Search for other works by this author on: Oxford Academic Google Scholar The Journal of Clinical Endocrinology & Metabolism, Volume 80, Issue 5, 1 May 1995, Pages 1502–1505, https://doi.org/10.1210/jcem.80.5.7744992 Published: 01 May 1995
Human Papillomavirus DNA Remains Detectable Longer than Related Cervical Cytologic Abnormalities (2002)

Cervical human papillomavirus (HPV) infections are at high risk of neoplastic progression if they persist. Persistence can be measured by repeated HPV DNA tests or by cytologic testing. Thus, it is useful to understand the relationship between these 2 measurements. To explore the relative timing of HPV DNA clearance versus cytologic regression, data were analyzed from 840 study participants who were followed-up by repeat thin-layer cytology and HPV testing by a hybrid capture test at 6-month intervals for 2 years. On average, HPV DNA detection persisted longer than related cytologic abnormalities (P<.001). HPV type-specific data from a subset of 448 women with complete polymerase chain reaction test data confirmed that HPV DNA persisted longer than cytologic abnormalities (P<.001). It appears that the natural history of HPV typically includes periods before and after cytologic abnormality, in which HPV DNA is the more sensitive indicator of infection.
<i>"Point it, split it, peel it, view it"</i> (2011)

Reservoir engineers rely on virtual representations of oil reservoirs to make crucial decisions relating, for example, to the modeling and prediction of fluid behavior, or to the optimal locations for drilling wells. Therefore, they are in constant pursue of better virtual representations of the reservoir models, improved user awareness of their embedded data, and more intuitive ways to explore them, all ultimately leading to more informed decision making. Tabletops have great potential in providing powerful interactive representation to reservoir engineers, as well as enhancing the flexibility, immediacy and overall capabilities of their analysis, and consequently bringing more confidence into the decision making process. In this paper, we present a collection of 3D reservoir visualization techniques on tabletop interfaces applied to the domain of reservoir engineering, and argue that these provide greater insight into reservoir models. We support our claims with findings from a qualitative user study conducted with 12 reservoir engineers, which brought us insight into our techniques, as well as a discussion on the potential of tabletop-based visualization solutions for the domain of reservoir engineering.
Testing the Preliminary X-33 Navigation System (2001)

The X-33 Reusable Launch Vehicle (RLV) must meet the demanding requirements of landing autonomously on a narrow landing strip following a flight that reaches an altitude of up to 200,000 feet and a speed in excess of Mach 9 with significant in-flight energy bleed-off maneuvers. To execute this flight regimen a highly reliable avionics system has been designed that includes three LN-100G Inertial Navigation System/Global Positioning System (INS/GPS) units as the primary navigation system for the X-33. NASA's Marshall Space Flight Center (MSFC) tested an INS/GPS system in real-time simulations to determine the ability of this navigation suite to meet the in flight and autonomous landing requirements of the X-33 RLV. A total of sixty-one open loop tests were performed to characterize the navigation accuracy of the LN-100G. Twenty-seven closed-loop tests were also performed to evaluate the performance of the X-33 Guidance, Navigation and Control (GN&C) algorithms with the real navigation hardware. These closed-loop tests were also designed to expose any integration or operational issues with the real-time X-33 vehicle simulation. Dynamic road tests of the INS/GPS were conducted by Litton to assess the performance of differential and nondifferential INS/GPS hybrid navigation solutions. The results of the simulations and road testing demonstrate that this novel solution is capable of meeting the demanding requirements of take-off, in-flight navigation, and autonomous landing of the X-33 RLV. This paper describes the test environment developed to stimulate the LN-100G and discusses the results of this test effort. This paper also presents recommendations for a navigation system suitable to an operational RLV system.
Temperature Gradient Interaction Chromatography and MALDI-TOF Mass Spectrometry Analysis of Stereoregular Poly(ethyl methacrylate)s (2002)

Temperature gradient interaction chromatography (TGIC) was applied for the separation of stereoregular poly(ethyl methacrylate) (PEMA) according to the tacticity. The three PEMA samples with differing tacticity (rr triad content 0, 53, and 91%) prepared by anionic polymerization were used. C18 bonded silica and a mixture of CH2Cl2 and CH3CN (30/70, v/v) were used as stationary and mobile phase, respectively. TGIC was able to separate the PEMA samples, showing the increasing retention in the order of decreasing rr triad contents; however TGIC elution peaks of the three PEMAs were not fully resolved but, rather, were partially overlapped. To isolate the tacticity effect from the molecular weight effect on the TGIC retention, the PEMA samples were fractionated by TGIC, and the accurate molecular weight of the fractions was determined by MALDI-TOF mass spectrometry. The fractions showed a much narrower molecular weight distribution than the mother PEMAs. The TGIC fractions of similar molecular weight but with different tacticity were fully resolved by TGIC, but mother PEMAs were not. These results indicate that the retention in TGIC is affected by both tacticity and molecular weight.
Controlling the Electronic Properties of Polythiophene through the Insertion of Nonaromatic Thienyl <i>S</i>,<i>S</i>-dioxide Units (1999)

A new class of thiophene-based polymers characterized by the presence of one nonaromatic thienyl S,S-dioxide moiety (O) to every two, four, and six aromatic thienyl units (T) was prepared from the newly synthesized precursors TOT, TTOTT, and TTTOTTT, and electrochemically characterized. The polymers displayed remarkably greater electron affinities than that of polythiophene and could be reversibly n-doped at moderate potentials, while still maintaining the property of also being p-doped at moderate potential values. All polymers were characterized by good p-doping/undoping cyclability, while at least four aromatic units to every nonaromatic one were needed to ensure good n-doping/undoping cyclability. ZINDO/S//PM3 calculations on TOT, TTOTT, and TTTOTTT and on (TOT)3 and (TTOTT)3, as models for the corresponding polymers, showed that the presence of the nonaromatic units does not affect the π,π* character of the frontier orbitals but decreases their energy, in particular that of the LUMO. The calculations allow the cyclability properties of the polymers in the p- and n-doping domains to be rationalized in terms of delocalization of the electronic charge of p- and n-type charge carriers over the aromatic units.
Carcinoma Arising in the Wall of a Breast Cyst During Pregnancy (1977)

A 23-year-old patient developed a carcinoma in the wall of a breast cyst during the second trimester of an otherwise uncomplicated pregnancy. A review of the literature revealed 7 reported cases of carcinoma of the breast arising in a cyst wall. However, none of these these cases has been associated with pregnancy. The relationship of fibrocystic disease and carcinoma of the breast is discussed. The possible influence of pregnancy and age on the prognosis of this patient are also considered.
Experiments in the Colchicine Field. VI. A Method for the Synthesis of Ring B<sup>1</sup> (1961)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTExperiments in the Colchicine Field. VI. A Method for the Synthesis of Ring B1C. David Gutsche, Denis M. Bailey, Charles W. Armbruster, Max W. Wendt, Joseph L. Kurz, Herbert H. Strohmayer, and Kurt L. SeligmanCite this: J. Am. Chem. Soc. 1961, 83, 6, 1404–1411Publication Date (Print):March 1, 1961Publication History Published online1 May 2002Published inissue 1 March 1961https://pubs.acs.org/doi/10.1021/ja01467a035https://doi.org/10.1021/ja01467a035research-articleACS PublicationsRequest reuse permissionsArticle Views79Altmetric-Citations2LEARN 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
Changes in conjunctival oxygen tension and temperature with advancing age (1985)

The conjunctival oxygen monitor reflects oxygen tension of the internal carotid artery without introducing the heating artifact characteristic of transcutaneous monitors. It is now being used in the ICU and the operating room to measure accurately and continuously Po2 and temperature of conjunctival tissue. We examined the effect of aging on these values in 101 healthy adult subjects. Mean conjunctival oxygen tension (58 +/- 14 torr) and temperature (34.9 +/- 0.6 degrees C) decreased significantly (p less than .01) with advancing age. Monitoring the conjunctival capillaries may prove to be a useful adjunct to patient care, but the effect of aging must be considered in any such measurement.
Segregation at Microsatellite Loci in Haploid and Diploid Gametes of <i>Musa</i> (1998)

The triploid genome of plantain ( Musa spp., AA group) has been considered intractable to genetic improvement because of the production of putatively homogeneous 2 n (= 3 x ) gametes. Plantain breeding schemes have been based on the hybridization of 2n megaspores from the triploid plantain and haploid microspores from a wild diploid banana. The resultant fuli‐sib populations of tetraploid hybrids exhibited extreme variation in phenotypic characteristics. This study was conducted to analyze the genetic constitution of tetraploid hybrids in order to characterize the nature of the gametes from which they were derived. Parental genotypes were screened with 31 primer pairs specific to different Musa microsatellite loci. Primers which detected polymorphisms between the parental genotypes were used to screen a population of 14 full‐sib tetraploid hybrids. A subset of primers was also used to screen a population generated by self‐pollination of the parental diploid banana. During analysis of the tetraploid hybrid population, 75% of the alleles donated by the maternal genotype (Obino l'Ewai) were observed to segregate. These data demonstrate the occurrence of recombination during the formation of 2 n megaspores in triploid plantain. Analysis of the paternal diploid banana accession (Calcutta 4) and its selfed progeny suggests that this accession is highly heterozygous. These data demonstrate the importance of genetic characterization to Musa breeding, and also indicate that microsatellite markers are well suited for marker‐assisted selection systems in Musa .
Lateralization of the arcuate fasciculus and its differential correlation with reading ability between young learners and experienced readers: A diffusion tensor tractography study in a chinese cohort (2011)

As Chinese reading engages a different neural network from alphabetic language reading, we investigate whether leftward lateralization of the arcuate fasciculus (AF), as observed in the Western population, is also present in the Chinese population and if it does, whether it is associated with better reading ability. Diffusion tensor tractography analysis on 75 Chinese subjects of three age groups (first graders, fourth graders, and college students) showed that 70-83% of them had leftward lateralization of the AF. The pattern of lateralization did not differ significantly among the three groups, suggesting that lateralization of the AF is formed at an early age and before one enters first grade. Among the first graders, who had just started to learn to read, subjects with strongly leftward lateralized AF scored significantly higher than those with other defined lateralization patterns in Chinese (P = 0.001) and English (P = 0.036) reading tasks. This association was not observed among the fourth graders and college students who were experienced Chinese readers. Among the fourth graders, females were found to obtain significantly higher Chinese (P = 0.033) and English reading scores than males (P = 0.002). Our study suggests a differential effect of leftward lateralization of the AF on reading ability at different stages of reading development in the Chinese population.
Photoactivated birefringent liquid-crystal light valve for color symbology display (1975)

Aphotoactivated liquid-crystal projection display device that is based upon the field-effect mode of the liquid crystal has been built and tested. The device displays high-resolution dynamic color symbology by means of the optical birefringence of the liquid crystal. The colors that can be displayed simultaneously are white (with gray scale), blue, green, yellow, and magenta on a dark field. The imaging light power required to excite the device varies from 30-900 µW/cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> at 525 nm and the resolution obtained at an MTF of 50 percent is 40 lines/mm. The basic construction of the device is similar to the dynamic scattering photoactivated liquid-crystal light valve.
Implementation of a scalable MPEG-4 wavelet-based visual texture compression system (1999)

The realization of new MPEG-4 functionality, applicable to 3D graphics texture compression and image database access over the Internet, is demonstrated in a PC-based compression system. Applying our system-level design methodologies effectively removes all implementation bottlenecks. A first-of-a-kind ASIC, called Ozone, accelerates the Embedded Zero Tree based encoding and is capable of compressing 30 color CIF images per second.