gebhart/patrepeval huggingface dataset:
“Life Style” As a Contact Lens Fitting Variable (1978)

In one form or another, every problem patient file contains some developing clues to the lengthy chair time represented. But perhaps the most subtle are associated with patient “life style”, i.e., a series of unique or even predictable shifts in activities, environment, or lens care.
Backward optical parametric efficiency in quasi-phase-matched GaN waveguide presenting stitching faults (2013)

We model a backward mirrorless optical parametric oscillator in a fragmented GaN waveguide consisting of a sequence of submicronic periodically poled elements separated by uniformly polarized connection sections representing stitching errors. We find that the generated coherent phase of the backscattered wave locks the phases of the forward propagating waves in such a way that the dynamics is nonintuitivelly as efficient as for a uniform quasi-phase-matched waveguide. The best coherence transfer to the backward wave, obtained for perfect group-velocity matching of the forward propagating waves, requires a nanoscale poled periodicity, which is achieved in GaN through epitaxy.
Synthesis of mixed oligodeoxyribonucleotides following the solid phase method (1982)

A method for the synthesis of mixed dimers, trimers and oligonucleotides on a solid support using monomeric protected nucleoside phosphochloridites (1a-d) has been developed and the different nucleoside reagents, and the results show that yields of different oligomers in a mixture could be directly correlated to the concentration of the four reagents. Separation of mixed oligomers on a reversed phase C18 column has also been studied.
Current Challenges and Concepts in the Preparation of Root Canal Systems: A Review (2004)

Nickel-titanium rotary instruments are important adjuncts in endodontic therapy. This review attempts to identify factors that influence shaping outcomes with these files, such as preoperative root-canal anatomy and instrument tip design. Other, less significant factors include operator experience, rotational speed, and specific instrument sequence. Implications of various working length definitions and desired apical widths are correlated with clinical results. Despite the existence of one ever-present risk factor, dental anatomy, shaping outcomes with nickel-titanium rotary instruments are mostly predictable. Current evidence indicates that wider apical preparations are feasible. Nickel-titanium rotary instruments require a preclinical training period to minimize separation risks and should be used to case-related working lengths and apical widths. However, and despite superior in vitro results, randomized, clinical trials are required to evaluate outcomes when using nickel-titanium instruments.
Forest health conditions on the Allegheny National Forest (1989-1999): Analysis of forest health monitoring surveys (2001)

This publication describes the forest vegetation and health conditions of the Allegheny National Forest (ANF). During the past 15 years, the ANF has experienced four severe droughts, several outbreaks of exotic and native insect defoliators, and the effects of other disturbance agents. An increase in tree mortality has raised concerns about forest health. Historical aerial surveys (1984-98), the 1989 Forest Inventory and Analysis plot data, and the 1998/1999 Forest Health Monitoring plot data were analyzed to compare disturbed and undisturbed areas. Tree mortality and crown dieback levels were compared between undefoliated areas and areas defoliated by cherry scallopshell moth, elm spanworm, and gypsy moth. American beech mortality was compared inside and outside the beech bark disease killing front. This study illustrates the value of an intensified grid of Forest Health Monitoring plots and demonstrates the integration of aerial survey and plot data.
Very wide tuning range, low-noise voltage controlled oscillators using ladder type leaky surface acoustic wave filters (2002)

This paper presents results from a study on a new type voltage controlled oscillator (VCO) that can operate at GHz frequencies and provide smooth tuning over a 2 to 5% tuning bandwidth. The VCO uses the feedback surface acoustic wave (SAW) oscillator principle and exhibits a phase noise performance substantially better than LC-type oscillators in the same frequency range. The key to achieving the high tuning range is the leaky SAW ladder type filter in the loop, stabilizing the VCO frequency. VCOs providing 45 and 92 MHz of tuning bandwidth at 940 and 2480 MHz center frequency respectively, are described. The 940 MHz VCO generates an output power of up to 16 dBm and exhibits a phase noise suppression of about -80 dBc/Hz at 1 kHz offset from carrier. The noise floor was calculated as -180 dBc/Hz. Another 940 MHz VCO prototype, designed to meet the requirements of portable communications, runs from a 2.8 V d. C. source, draws a current of 3.6 mA, generates -3 to -5 dBm of output power and provides 32 MHz of tuning bandwidth with a tuning voltage varying from 0 to 2.8 V. Excellent tuning linearity, low power variation with tuning and a clean spectrum are achieved with the 2.48 GHz VCO providing a tuning range of 52 MHz and an output power of 2 to 3 dBm.
Methanogenesis Biochemistry (2009)

Abstract Methanogenesis is the biological production of methane mediated by anaerobic microorganisms from the Archaea domain commonly called methanogens. The production of methane is the energy‐yielding metabolism of methanogens and is unique to these organisms. Methane is produced by three major pathways: (1) reduction of carbon dioxide, (2) fermentation of acetate and (3) dismutation of methanol or methylamines. All three pathways have in common the demethylation of methyl– coenzyme M to methane and the reduction of the heterodisulfide of coenzyme M and coenzyme B catalysed by methyl–coenzyme M and heterodisulfide reductases . Investigations of the biochemistry of the pathways have revealed novel enzymes with metal and cofactor requirements that have introduced new principles of biochemistry. Key Concepts Methanogenesis is the final step in the biological decomposition of biomass in the absence of oxygen. Approximately 70% of biologically produced methane originates from conversion of the methyl group of acetate to methane. The pathway of methanogenesis involves enzymes with novel cofactor and metal requirements. Nickel is an essential metal that is found in the active site of carbon monoxide dehydrogenase, hydrogenase, and methyl–coenzyme M reductase, an enzyme which is common to all methanogenic pathways. Methyltransferases involved in the metabolism of methylamines by Methanosarcina species contain pyyrolysine, the 22nd amino acid. Comparative genomics combined with biochemical analyses have revealed variations in the enzymes involved in the energy‐conservation steps in methanogens. Energy conservation in methanogens is linked to the generation of a chemical gradient that drives ATP synthesis by an ATP synthase.
'Time to effect' during cryomapping: a parameter related to the long-term success of accessory pathways cryoablation in children (2009)

The long-term success of cryoablation of right-sided AP is closely correlated to the TTE during cryomapping.
A Proposal that Congress Create a Commission on Federal Court Structure (1994)

In December 1993, the Federal Judicial Center completed a full-scale report on the alternative futures of the United States courts of appeals. The report, entitled Structural and Other Alternatives for the Federal Courts of Appeals, examines the problems facing the federal appellate system. The Report squarely favors non-structural reforms over more radical changes in the organization of the federal court system. This Federal Judicial Center Report is the culmination of three decades of studies, reports, committees, articles, and hearings which have discussed and debated what the appropriate response should be to the astronomical growth in the number of appeals in the United States courts of appeals. The next question, which this essay addresses, is what should follow this Report. Professor Baker’s recommendation is that Congress create a Commission on Federal Court Structure. Says he, “My hope is that such a Commission will allow for more rational discourse and less untoward political pressures as proposals for reform begin to take shape.”
Predictive modelling of surface roughness and tool wear in solid lubricant assisted turning of AISI 1040 steel (2009)

This article focuses on developing empirical models for tool wear and surface roughness prediction in the solid lubricant assisted turning process. Solid lubricant suspensions like graphite and boric acid in SAE 40 oil are employed in the turning of AISI 1040 (EN 8) steel. Results indicate that surface roughness is improved by reducing cutting forces and tool flank wear as compared to dry and wet machining. A comparison of predicted values from the empirical models and measured values is also carried out.
The occurrence and seasonal variation of gigartinine and <scp>L</scp>-citrullinyl-<scp>L</scp>-arginine in <i>Chondrus crispus</i> Stackh (1977)

Gigartinine, 5-(3-amidinoureido)-2-aminovaleric acid, and L-citrullinyl-L-arginine were islated from aqueous extracts of Chondrus crispus (Rhodophyceae). Their identifications were confirmed by chemical procedures, and 1H and 13C nuclear magnetic resonance and infrared spectroscopic methods. Citrullinylarginine, gigartinine, taurine, citrulline, and glutamic acid were the predominant free amino compounds. Citrullinylarginine showed the most pronounced change in concentration. This occurred during the winter months when it reached a maximum (in March) of 58 mumol/g fresh weight, a value 10 times greater than that of any of the free amino acids and equal to 50% of the total organic nitrogen in the plant; All of these compounds were depleted to a minimum of about 1 mumol/g fresh weight in October. Both gigartinine and citrullinylarginine were detected in Ahnfeltia plicata, Gracilaria sp. Petrocelis middendorfii, Polyides rotundus, Polysiphonia lanosa, and Rhodomela confervoides.
Color Coding (2010)

The depigmentation disease vitiligo is linked to several autoimmune susceptibility loci.
Partial set for flip-flops based on state requirement for non-scan BIST scheme (2003)

This paper describes a methodology for improving sequential circuit's testability in a pseudo-random testing environment. Our goal is to slightly modify the circuit under test with a DFT technique. For this, partial reset of circuit's flip-flops is performed during application of the test sequence. Flip-flop candidates far reset and their reset period are chosen according to a methodology based on identification of required test states for hard-to-detect faults. By increasing the probability to reach these states, we improve the fault coverage.
Cell Cycle Regulation of the Tobacco Ribonucleotide Reductase Small Subunit Gene Is Mediated by E2F-like Elements (2000)

Ribonucleotide reductase (RNR) is a key enzyme involved in the DNA synthesis pathway. The RNR-encoded genes are cell cycle regulated and specifically expressed in S phase. The promoter of the RNR2 gene encoding for the small subunit was isolated from tobacco. Both in vivo and in vitro studies of the DNA-protein interactions in synchronized BY2 tobacco cells showed that two E2F-like motifs were involved in multiple specific complexes, some of which displayed cell cycle-regulated binding activities. Moreover, these two elements could specifically interact with a purified tobacco E2F protein. Involvement of the E2F elements in regulating the RNR2 promoter was checked by functional analyses in synchronized transgenic BY2 cells transformed with various RNR2 promoter constructs fused to the luciferase reporter gene. The two E2F elements were involved in upregulation of the promoter at the G1/S transition and mutation of both elements prevented any significant induction of the RNR promoter. In addition, one of the E2F elements sharing homology with the animal E2F/cell cycle-dependent element motif behaved like a repressor when outside of the S phase. These data provide evidence that E2F elements play a crucial role in cell cycle regulation of gene transcription in plants.
Characteristics of Asphalt Pavement Images and Enhanced Algorithm for Noise Reduction (2001)

Pavement distresses are one of the most important data for pavement management systems. Inspection machines and its related programs have been used for operating tools in PMS developed in advanced countries. In Korea imported machines and programs for the length price ale utilized to get information of pavement condition from the field This study is launched for developing the program which can detect cracks on asphalt pavement due to many drawbacks in current PMS operation such as improper maintenance work and long resting period when it was broken. The focus of this study is to define principles to analyze pavement surface with digital image processing techniques, to test property of pavement images and to suggest an algorithm that reduces noises at test. To test images, the camera attached on the Automatic Road Analyser(ARAN) was used. Through the FFT images, histogram and statistical values of pavement images, it was found that the images had many noises with high-frequency components against general images, and it was difficult to subdivide pavement images into background or crack. Through several testing with various filters for noise reduction a 3X3 median filter was suggested to reduce noises effectively.
Characterization of hydrogenated amorphous germanium compounds obtained by x-ray chemical vapor deposition of germane: Effect of the irradiation dose on optical parameters and structural order (2007)

Hydrogenated nonstoichiometric germanium materials have been produced by x-ray activated-chemical vapor deposition from germane. The reactions pattern leading to the solid products has been investigated. The dose effect on the composition, the local bonding configuration, and structural characteristics of the deposited solids has been studied using infrared absorption and Raman spectroscopy and has been discussed. Optical parameters have been also determined from ultraviolet-visible spectrophotometry data. The results show that the solids are formed by a random bound network of germanium and hydrogen atoms with a-Ge zones dispersed in the matrix. The Raman results and optical parameters indicate that the structural order, both short-range and intermediate-range, decreases with increasing irradiation time. This behavior suggests that the solid is involved in the reactions leading to the final product and indicates that the formation of amorphous germanium zones is stimulated by postdeposition irradiation, which induces compositional and structural modifications.
Evaluation and Design of Wind Vanes (1967)

Wind vane motion constants (damping ratio, natural wavelength and decay distance) are derived in a way which can accomodate both mechanical friction and the presence of a propeller. The motion is shown to be insufficiently described by a second order equation because of the way in which the aerodynamic torque changes with angle of attack. This implies that any measurements of vane constants made in the wind tunnel at initial angles of attack above 20° are not representative for the vane. Simple relations between easily measured vane dimensions and motion constants are derived, and vane motion is proved to be independent of the fin area. The WMO requirement for wind vanes is translated into motion constants and shown to be fulfilled for any vane with a damping ratio of 0.30. For turbulence measurements a certain short-wavelength reliability limit for vane-measured spectra is proposed. Experimental comparison of basic fin configurations shows the inferiority of streamlined and splayed fins. General vane design rules are given and are applied in the construction of an operational wind vane with a damping ratio of 0.30 and of a fast propeller bivane with an annular fin.
Experimental and theoretical study of the flow in the volute of a low specific-speed pump (2001)

The flow in the volute of a low specific-speed pump was studied both experimentally and numerically near its design point. Measurements included time-averaged values of velocity and static pressure at a large number of locations in the volute. The numerical computations were based on the unsteady three-dimensional potential flow model for the core flow. Viscous losses were quantified using additional models that use the potential flow as input. It is shown that near the design point of this pump, the core flow behaves like a potential flow, provided that no boundary layer separation occurs. Explanations are given for the presence of local deviations due to secondary flow. These local deviations do not influence the overall potential flow characteristics significantly.
Effect of fading correlation on adaptive arrays in digital mobile radio (1994)

In this paper, we investigate the effect of correlations among the fading signals at the antenna elements of an adaptive array in a digital wireless communication system. With an adaptive array, the signals received by multiple antennas are optimally weighted and combined to suppress interference and combat desired signal fading. Previous results for flat and frequency-selective fading assumed independent fading at each antenna. Here, we present a model of local scattering around a mobile where the received multipath signals arrive at the base station within a given beamwidth, and derive a closed-form expression for the correlation as a function of antenna spacing. Results show that the degradation in performance with correlation in an adaptive array that combats fading and suppresses interference is only slightly larger than that for combating fading alone, i.e., with maximal ratio combining. This degradation is small even with correlation as high as 0.5.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
John Russell Rickford, Variation, versatility and change in sociolinguistics and creole studies. Cambridge: Cambridge University Press, 2019. Pp. xxii + 366. (2021)

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Inverse hydrogen isotope effects in some metal hydride systems (1972)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInverse hydrogen isotope effects in some metal hydride systemsR. H. Wiswall Jr. and J. J. ReillyCite this: Inorg. Chem. 1972, 11, 7, 1691–1696Publication Date (Print):July 1, 1972Publication History Published online1 May 2002Published inissue 1 July 1972https://pubs.acs.org/doi/10.1021/ic50113a050https://doi.org/10.1021/ic50113a050research-articleACS PublicationsRequest reuse permissionsArticle Views530Altmetric-Citations95LEARN 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
Encryption-based privacy protection for police body-worn cameras (2016)

Police body cameras are increasingly being used in many places. While body cameras do promote accountability, there are concerns over the loss of privacy as a result of these cameras. Police departments have tried to balance these two concerns by training officers on what incidents to record, and what not to record. However, the existing approach is error prone. This paper describes an encryption-based approach that protects privacy, while still ensuring relevant videos are always captured. Our preliminary investigations suggest that our approach is feasible on existing mobile hardware.
Dispersion managed soliton systems (2002)

Dispersion managed solitons have been discovered to have some remarkable properties which indicate an outstanding opportunity for exploitation in transmission systems. This paper will review and interpret these discoveries and discuss the potential for WDM of these solitons for both long distance systems and for the upgrade of the installed fibre base.
Über die Kynurensäure (1921)

Liebig') im Hundeharn entdeckt.. D a siemeines Wissensdas einzige Chinolin-Derivat ist, welches his jetzt beim tierischen Stoffwechsel aufgefunden worden ist,, bietet sie, sowohl in physiologischer ' ), wie auch in chemischer Hinsicht einiges Interesse.Lange Zeit 3, war man der Meinung, die Carboxylgruppe befinde sich in p-Stellung im Pyridinkeru, und erst .Annie H o m e r 4 ) hat in letzter Zeit die Kynureuslure fur eine )b.-Oxy-chinolin-u-carbonsaure erklart.Diase Forscherin hat Kynurensaure aus Hundeharn sorgfaltigst gereinigt und festgestellt, d a 8 die so erhaltene Saure annahernd denselben Schmelzpun kt (2890) resp.Zersetzungspunkt wie die von C a m p s 5, synthetisierte y-Oxy-chinol~n-a-carbonsiillre (290O) hat.D a eich aber die Kynurensaure im Moment des Schmelzens unter lebhsfter Kohlensaure-Entwicklung zersetzt, so ist ihr Schmelzpunkt nicht genau zu bestimmen, und man Iindet i n der Literatur aus diesem Grunde auch so verscbiedeue An- gaben dariiber.Ich iniiohte deshalb dem Befund vou A
OM FUEL ELEMENTS (1960)

The construction of fuel elements chosen for the HawkerSiddeley marine propulsion power plant is described. Considerations were presented concerning the choice of uranium dioxide and stainless steel as the fuel and container. S. A. P. (sintered aluminuin powder) is regarded as the a strength/ er than steel. n the tube bundle, ress which is ction must dising undue thermal
Nanoparticles Improve Biological Functions of Phthalocyanine Photosensitizers Used for Photodynamic Therapy (2012)

Photodynamic therapy (PDT) is a new technology using photodynamic effect for disease diagnosis and treatment. It is a two-step technique involving the uptake of a photosensitizer by cancer tissue followed by light irradiation that excites the photosensitizer to produce highly reactive oxygen species, the latter execute apoptosis of cancerous cells. As a second-generation of photosensitizers, phthalocyanine demonstrates higher absorption in the 650-800 nm range and short tissue accumulation compared to their first generation. However, many potent phthalocyanine photosensitizers are hydrophobic and poorly water-soluble, which limit their therapeutic applications. As a result, advanced delivery systems and different strategies are called for to improve the effectiveness of PDT. Facts have proved that using nanoparticles as carries of photosensitizers is a very promising route. Nanoparticles have the potentials to increase photosensitizers' aqueous solubility, bioavailability and stability, and deliver photosensitizers to the target tissues. This article reviewed the commonly-used nanoparticles, including colloid gold, quantum dots, paramagnetic nanoparticles, silica-based materials, polymer-based nanoparticles, as potential delivery systems for phthalocyanine photosensitizers, and summarized the improved biological functions of phthalocyanine photosensitizers in PDT.