gebhart/patrepeval huggingface dataset:
Spectral noise due to sampling errors in Fourier-transform spectroscopy (2001)

An assessment is made of the spectral noise in Fourier-transform spectroscopy caused by sampling errors in the interferogram acquisition. Numerical evaluations are performed in the case of the REFIR (radiation explorer in the far infrared) instrument developed for the measurement of the long-wavelength Earth emissions from satellite platforms. In this case the slow response of a room-temperature pyroelectric detector, the relatively short acquisition time, the broadband operation, and the wish for a relaxed requirement of the mirror drive accuracy make sampling error an important issue. Different sampling methods can be considered for reduction of the spectral noise induced by sampling errors. The effects of different sampling methods are quantified and discussed for the selection of the most-suitable option for this instrument. We find that only sampling methods that introduce some compensation (either analog or digital) of the frequency dependence of amplitude and phase components of the acquisition-system responsivity provide satisfactory results. In particular, the equal time sampling followed by a digital filter and numerical resampling has been examined minutely with a simulation model used to perform sensitivity tests of the main parameters that characterize the procedure.
5-Methyltetrahydrofolate-homocysteine methyltransferase gene polymorphism (MTR) and risk of head and neck cancer (2010)

The functional effect of the A>G transition at position 2756 on the MTR gene (5-methyltetrahydrofolate-homocysteine methyltransferase), involved in folate metabolism, may be a risk factor for head and neck squamous cell carcinoma (HNSCC). The frequency of MTR A2756G (rs1805087) polymorphism was compared between HNSCC patients and individuals without history of neoplasias. The association of this polymorphism with clinical histopathological parameters was evaluated. A total of 705 individuals were included in the study. The polymerase chain reaction-restriction fragment length polymorphism technique was used to genotype the polymorphism. For statistical analysis, the chi-square test (univariate analysis) was used for comparisons between groups and multiple logistic regression (multivariate analysis) was used for interactions between the polymorphism and risk factors and clinical histopathological parameters. Using univariate analysis, the results did not show significant differences in allelic or genotypic distributions. Multivariable analysis showed that tobacco and alcohol consumption (P < 0.05), AG genotype (P = 0.019) and G allele (P = 0.028) may be predictors of the disease and a higher frequency of the G polymorphic allele was detected in men with HNSCC compared to male controls (P = 0.008). The analysis of polymorphism regarding clinical histopathological parameters did not show any association with the primary site, aggressiveness, lymph node involvement or extension of the tumor. In conclusion, our data provide evidence that supports an association between the polymorphism and the risk of HNSCC.
No Slide Necessary. (2005)

Describes several resorts in the U.S. that feature water attractions suitable for receptions, cocktail parties and other kinds of special events. Features of the Gaylord Opryland Resort in Nashville, Tennessee; Acrobatic show presented in the pool deck of the Manchester Grand Hyatt San Diego in California.
2-Fluoropurine ribonucleosides (1970)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT2-Fluoropurine ribonucleosidesJohn A. Montgomery and Kathleen HewsonCite this: J. Med. Chem. 1970, 13, 3, 427–430Publication Date (Print):May 1, 1970Publication History Published online1 May 2002Published inissue 1 May 1970https://pubs.acs.org/doi/10.1021/jm00297a022https://doi.org/10.1021/jm00297a022research-articleACS PublicationsRequest reuse permissionsArticle Views82Altmetric-Citations7LEARN 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
Enone–Alkyne Reductive Coupling: A Versatile Entry to Substituted Pyrroles (2011)

The reductive coupling of enones or enals with alkynes, followed by olefin oxidative cleavage and Paal-Knorr cyclization, provides a versatile entry to a variety of pyrrole frameworks. A number of limitations of alternate entries to the requisite 1,4-dicarbonyl intermediate are avoided. Classes of pyrroles that are accessible by this approach include 2,3-, 2,4-, 1,2,3-, 1,2,4-, 2,3,5-, and 1,2,3,5-substituted monocyclic pyrroles as well as a number of fused-ring polycyclic derivatives.
Career Choices: The Australian Public Service (2008)

Peter Tucker describes his 23-year career in the Australian Public Service after starting out as a research chemist. He describes the work and the achievements made during his career.
Strength and Static Fatigue of Abraded Glass Under Controlled Ambient Conditions: III, Aging of Fresh Abrasions (1960)

The effect of aging under various conditions on the strength and static fatigue of freshly abraded specimens has been studied. For both grit‐blast and emery cloth abrasions the liquid nitrogen (fatigueless) strength increased with storage time after formation of the abrasions for specimens stored in liquid water or in an atmosphere containing water vapor. After 1 day of storage in water the strength increase was about 60% of the freshly abraded value for emery cloth abrasions and about 30% for grit‐blast abrasions. The aging depended strongly on the medium in which the specimens were stored and on the relative humidity when they were stored in air. In very dry air or vacuum the aging effect appeared to be eliminated. Static fatigue curves (strength vs. load duration) in water were measured for specimens containing fresh abrasions and aged abrasions. Ordinary aging did not change the static fatigue behavior of fresh abrasions. The liquid nitrogen strength and static fatigue also were studied for specimens which had been baked at 470°C. in high vacuum after being abraded. This treatment increased the fatigueless strength by approximately the same amount as aging in water. The rate of static fatigue, however, which was unaffected by ordinary aging, was reduced by a factor of approximately 25 for vacuum‐baked as compared with fresh abrasions. Possible mechanisms for aging are discussed in some detail. It is proposed that the observed aging effects on the fatigueless strength can be accounted for by an increase of the radii of the tips of the abrasion cracks in the surfaces of the specimens. The suppression of fatigue for the vacuum‐baked specimens is believed to be related to the non‐wettability of their surfaces which was observed in the course of the experiments.
Clinical characteristics and timing of delivery in women with severe preeclampsia complicated with ascites (2009)

Objective To investigate the clinical characteristics and the optimal time of delivery in pregnant women with severe preeclampsia complicated with ascites. Methods A retrospective study was conducted on 179 severe preeclampsia mothers and their 195 neonates, presented in the First Affiliated Hospital of Wenzhou Medical College from Jan. 2003 to Dec. 2005, who were divided into two groups： 32 complicated with ascites （aseites group） and 147 without （non-ascites group）. The general conditions, mode of delivery and complications including eclampsia, hemolysis, elevated serum level of liver enzymes, and low platelets （HELLP syndrome）, liver failure, renal failure, heart failure, hypoproteinemia, placental abruption, postpartum hemorrhage and puerperal infection, were also analyzed. Clinical data of all infants （38 from aseites group and 157 from non-aseites group） were analyzed. The incidence and mortality rate of small for gestational age （SGA） in both group within the same gestational age group and those between different gestational age groups in the ascites group were compared. Results （1） The average gestations at admission and delivery in the ascites group were earlier than the other [admission： （32.5±2.1）weeks vs （36.1±3.5）weeks; delivery： （34.1±2.3） weeks vs （37.2±1.5）weeks, P〈0.05]. The rate of systemic antenatal care in the ascites group was lower than that of the non-ascites group （25.0% vs 53.7%, P〈0. 05）. More complications were found in the ascites group than in the non-ascites group （hypoproteinemia： 100.0%vs 47.0% ;liver and renal failure： 31.2% vs 8.2%; HELLP syndrome： 9.4% vs 2.0%; postpartum hemorrhage： 18.8% vs 2.0% ; all P〈0.05）. （2） The incidence of SGA in the ascites group was all higher than that in the non-ascites group, however, significant differences was only found between the two groups at 〉36 weeks （7/9 vs 30.2%, P〈0.05）. The perinatal mortality rates of SGA in the ascites group at 〈32 weeks and 32-34 weeks were significantly higher than that in the non-ascites group respectively （〈32 weeks： 69.2% vs 19.2%, P〈0.05; 32-34 weeks： 2/7 vs 0, P〈0.05）. （3） The highest perinatal mortality rate and the highest incidence of SGA in the ascites group were found in the groups of 〈32 weeks and 〉36 weeks, respectively. Conclusions The early onset of ascites and higher rate of complications in severe preeclamptic women implies the adverse maternal and fetal outcomes. Ascites in severe preeclampsia cases should alert the clinicians. The optimal time for delivery might be at 32-36 weeks of gestations.

Key words: 
Pre-eclampsia;  Ascites;  Retrospective studies
Augmented Reality Audio Editing (2010)

The papers at this Convention have been selected on the basis of a submitted abstract and extended precis that have been peer reviewed by at least two qualified anonymous reviewers. This convention paper has been reproduced from the author&apos;s advance manuscript, without editing, corrections, or consideration by the Review Board. The AES takes no responsibility for the contents.
Amended description of Ramibacterium alactolyticum Prevot and Taffanel with proposal of a neotype strain (1967)

Prévot’s strain DO-4 (VPI strain 0416) is proposed as the neotype strain of Ramibacterium alactolyticum Prévot and Taffanel (1 942). This strain represents members of the genus Ramibacterium formerly assigned to R. alactolyticum, R. pleuriticum, and R. dentium, which are objective synonyms. R. alactolyticum is an aerobic, Gram - positive, catalase - negative, pleomorphic rod that produces alcohols and acetic, butyric, caprioc, and often caprylic acids from glucose, apparently by condensation of 2-carbon intermediates with carboxylic acids in the medium. The organism is morphologically similar to the anaerobic corynebacteria, but can be differentiated from catalase - negative anaerobic corynebacteria by fermentation products and by several other properties as described in this study. R. alactolyticum has been isolated from human infections in Europe and in the United States.
Straylight and Contrast Sensitivity After Corneal Refractive Therapy (2011)

Our findings suggest improved intraocular straylight readings 1 month after starting the treatment, although the changes observed in straylight could not be related to changes in mesopic and photopic contrast sensitivity or HCVA and LCVA. Mesopic contrast sensitivity was more affected by the treatment intervention than photopic contrast sensitivity.
The open book: a practical perspective on OSI (1990)

The OSI protocol suite (an internationally standardized set of rules for computer communications) offers a unique promise: it has the potential to provide a political and technical solution to world-wide networking. Computers--from supers to workstations and PCs, from the executive suite to the laboratory, and from Palo Alto to London, or anywhere--can all share a common set of rules for communicating. But, with any emerging technology, there are numerous questions to be answered and issues to be addressed. The Open Book is designed to examine those complex questions and issues and provide a balanced set of perspectives.
Fe(III) Oxide-modified Indonesian Bentonite for Catalytic Photodegradation of Phenol in Water (2017)

Phenol, which is a major organic pollutant, is usually detected in industrial wastewater, and thus the wastewater should be processed further before discharged into water bodies. Application of heterogeneous catalysis using natural-based materials is known to be effective and environmentally friendly in removing hazardous substances in water. In this study, local natural bentonite from the Tapanuli region in Indonesia was modified to eliminate dissolved phenol. Elimination by photodegradation reaction was conducted in a photo-Fenton system utilizing Fe(III) oxide-modified bentonite (Fe-B) as catalyst. Fe-B was prepared by a cation exchanging process using mixture solutions of NaOH and FeCl3 with OH/Fe molar ratio of 2:1 and calcined at 300 °C. Material characterization was performed by X-ray diffraction (XRD), low-angle XRD, Fourier transform infrared spectroscopy and atomic absorption spectroscopy. The reaction components consisted of ultraviolet C light, H2O2, and Fe-B, and they were processed in a batch reactor. The role of each component was analyzed by a series of reaction conditions (i.e., adsorption, photolysis, H2O2 effect, Fenton, and homogeneous photo-Fenton). The heterogeneous photo-Fenton system was found to be essential for phenol degradation, as none of the reaction conditions caused total phenol removal in the 180 min reaction time. To conclude, heterogeneous photo-Fenton gave the highest photodegradation activity, and the best experimental condition for 1.10 mM phenol removal was 5 g L-1 catalyst, 78.35 mM H2O2, and 90 min reaction time.
Ethynyl-Capped Hyperbranched Conjugated Polytriazole: Click Polymerization, Clickable Modification, and Aggregation-Enhanced Emission (2012)

Cu(I)-catalyzed azide–alkyne click polymerization, developed based on the click reaction, has become a powerful tool for the construction of functional polytriazoles with linear and hyperbranched structures. This method has, however, rarely been used for the preparation of functional hyperbranched conjugated polytriazoles (hb-CPTA). In this paper, soluble ethynyl-capped hb-CPTA with weight-averaged molecular weight of 39 500 was synthesized in high yield (84.4%) by the Cu(I)-catalyzed azide–alkyne click polymerization of tetraphenylethene containing diazide [1,2-bis(4-azidophenyl)-1,2-diphenylethene] and tetrayne [1,1,2,2-tetrakis(4-ethynylphenyl)ethane] in equal concentration. By taking advantage of the ethynyl groups on its periphery, the polymer could be efficiently postfunctionalized by azide–alkyne and thiol–yne click reactions. The polymers are thermally stable and loss 5% of their weights at temperatures higher than 340.0 °C. hb-CPTA also possesses high char yield (74.8%) at 800 °C. The polymers feature the unique characteristics of aggregation-enhanced emission. Furthermore, the PL intensities of the hb-CPTA and thiol–yne postfunctionalized polytriazoles increase linearly with water fraction in THF/water mixtures. Thanks to their rigid structures, the polymers could be fabricated into unimolecular nanoparticles with sizes of ca. 100 nm. Thus, this paper provides a powerful method to synthesize soluble ethynyl-capped hyperbranched polymers, which could be a useful platform for preparation of versatile functional polymers via postreactions.
Efficacy of Sumatriptan in the Treatment of Migraine: A Review of the Literature (2001)

Advanced practice nurses treat many patients, including children and adolescents, with migraine headaches. Management of headache episodes requires a delicate balance of prophylactic and abortive therapies. Sumatriptan has been used effectively to treat adult patients with migraine headaches, but its efficacy in children has not been established. Results of a literature review provide strong evidence supporting the use of sumatriptan in treating adults with migraine headaches. Some evidence also exists for using sumatriptan to treat migraines in pediatric patients. Open prospective studies used small convenience samples, thus limiting the external validity of the research findings. Two randomized, double-blind, placebo-controlled, crossover trials found conflicting results for the efficacy of sumatriptan in the treatment of pediatric migraine. Further research is needed to determine its efficacy in children.
Micropuncture study of renal tubular transfer of sodium chloride in the rat (1961)

Micropuncture studies were made in the rat on the relationship between net water and net sodium movement across proximal tubular epithelium during strong osmotic diuresis induced by intravenous infusion of a 20% mannitol solution. Results obtained in the mannitol series were compared with data obtained in rats during infusion of 0.9% saline. Collected tubular fluid and appropriate plasma samples were analyzed for C 14 inulin or creatinine, chloride and radiosodium. The latter was injected intravenously several hours prior to tubular puncture. Net water reabsorption across the proximal tubule was less than under nondiuretic conditions. The concentration of radiosodium and of chloride in proximal tubular fluid was found to be below that of plasma in osmotic diuresis. Much steeper gradients for these ions were found across distal tubular epithelium indicating that parts other than the proximal convolution participate in the establishment of the over-all concentration gradients. Since net sodium movement occurred against an electrochemical potential gradient during osmotic diuresis, this study provides evidence for active transport of sodium ions across the proximal tubular wall.
Structure of the amino-tennlnal end of mammalian elongation factor Tu (1986)

Mixed sequence oligonucleotide probes complementary for peptides Thr-Ile-Glu-Lys-Phe-Glu and Asp-Tyr-Val-Lys-Asn-Met-Ile which are located in the amino-terminal region of eEF-Tu (1,2,3? were used to obtain reverse transcripts from murine and human poly(A) mRNA. Reverse transcription products were separated on polyacrylamide gels and sequenced. Both sequenc- es contain an open reading frame of 282 nucleotides which code for the same sequence of ninety-four amino acids including the start methionine (ATG)
Clinical Evaluation of the Topcon BV-1000 Automated Subjective Refraction System (2004)

The subjective refraction routine within the BV-1000 improves the results of simultaneous binocular autorefraction data. The BV-1000 provides an accurate and repeatable measure of subjective refraction after binocular addition.
Oxidising CO to CO2 using ceria nanoparticles (2005)

We calculate, using simulated amorphisation and recrystallisation (A&R), that ceria (CeO2) nanoparticles, about 8 nm in diameter, comprise a high concentration of labile surface oxygen species, which we suggest will help promote the oxidation of CO to CO2. In particular, the ceria nanoparticle contains a high proportion of reactive {100} surfaces, surface steps and corner sites. When reduced to CeO1.95, the associated Ce3+ species and oxygen vacancies decorate step, corner and {100} sites in addition to plateau positions on {111}. The energetics of CO oxidation to CO2, catalysed by a ceria nanoparticle, is calculated to be lower compared with CO oxidation associated with the lowest energy surface (i.e. CeO2(111)) of the corresponding 'bulk' material. Our calculated morphologies for the ceria nanoparticles are in accord with experiment.
Optically induced, AC electrokinetic manipulation of colloids (2009)

This report introduces a novel optically induced AC electrokinetic technique that generates microfluidic motion as well as rapidly and continuously accumulates micro- and nanoparticles on an unmodified planar electrode surface. This method has been termed rapid electrokinetic patterning (REP). A highly focused optical landscape was applied to the surface of a parallel-plate electrode at a wavelength of 1,064 nm and laser powers typically less than 30 mW. The focused illumination produced sharp thermal gradients within a fluid sample injected between the electrodes. An applied electric field acted upon these gradients, resulting in electrothermal hydrodynamic motion. The resulting microfluidic motion resembled a microfluidic vortex, carrying suspended particles towards its center. These particles were trapped on the electrode surface by low-frequency (< 300 kHz) electrokinetic forces. Colloid accumulation resembled a crystalline, monolayer assembly and therefore this technique could be used to create artificial architectures. Particle aggregation was AC frequency dependent, enabling colloidal sorting as well as investigation of low-frequency colloid polarization mechanisms. The temperature profile from the optically induced heating was measured with temperature dependent fluorescent dye. With an applied laser power of 30 mW the maximum measured heating was 5.5°C. The optically induced electrothermal microfluidic vortex was analyzed with 2D μPIV (Particle Image Velocimetry) techniques. Computer simulations were used to model this vortex and confirm observed experimental trends. The velocity of the microfluidic vortex increased with the square of the applied electric field. Electrothermal fluid velocity remained constant for fluid conductivities and applied AC frequencies less than at its charge relaxation. The particle aggregation was characterized with various applied AC voltages, AC frequencies, illumination intensities, and fluid conductivities. The frequency dependent nature of particle accumulation was investigated, including utilizing this technique for selective particle accumulation and separation. Silica, polystyrene, and latex particles were captured, ranging from 49 nm to 3.0 microns in diameter. Experiments confirmed the electrokinetic mechanisms involved with particle capture, including frequency dependent polarization mechanisms and particle-particle interactions. Results provide a foundation for future investigations to apply this dynamic particle and fluid manipulation technique.
A Review of the Evidence for Overlap among Unexplained Clinical Conditions (2001)

Overlap between unexplained clinical conditions is substantial. Most studies are limited by methodologic problems, such as case definition and the selection and recruitment of case-patients and controls.
Cytological Expression in the Male-Sterile ms Mutant in Watermelon (1994)

Journal Article Cytological Expression in the Male-Sterile ms Mutant in Watermelon Get access X. P. Zhang, X. P. Zhang Department of Horticulture, 109 PAAS Building, Clemson UniversityClemson, SC 29634 Search for other works by this author on: Oxford Academic PubMed Google Scholar H. T. Skorupaka, H. T. Skorupaka The Department ol Agronomy and Soils and Department of Biological Sciences, Clemson UniversityClemson, SC 29634 Search for other works by this author on: Oxford Academic PubMed Google Scholar B. B. Rhodes B. B. Rhodes Department of Horticulture, 109 PAAS Building, Clemson UniversityClemson, SC 29634 Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Heredity, Volume 85, Issue 4, July 1994, Pages 279–285, https://doi.org/10.1093/oxfordjournals.jhered.a111456 Published: 01 July 1994 Article history Received: 06 December 1993 Accepted: 04 February 1994 Published: 01 July 1994
A note on a method for generating points uniformly on <i>n</i> -dimensional spheres (1959)

No abstract available.