gebhart/patrepeval huggingface dataset:
Conformational analysis of 5-thio-D-glucose (1981)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTConformational analysis of 5-thio-D-glucoseJoseph B. Lambert and Stephen M. WharryCite this: J. Org. Chem. 1981, 46, 16, 3193–3196Publication Date (Print):July 1, 1981Publication History Published online1 May 2002Published inissue 1 July 1981https://pubs.acs.org/doi/10.1021/jo00329a009https://doi.org/10.1021/jo00329a009research-articleACS PublicationsRequest reuse permissionsArticle Views224Altmetric-Citations30LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Chemical EOR Under Harsh Conditions: Scleroglucan As A Viable Commercial Solution (2018)

Abstract While synthetic polymer floods are being deployed in mild temperature and low salinity fields, many oilfields (harsh conditions) remain inaccessible due to performance limitations, and concentration requirements, which adversely affect project economics. Historically, biopolymers have been considered in such reservoirs, with mixed results. Xanthan was used in the 1980's, while more recently schizophyllan polymer was tested in a pilot study. This study presents scleroglucan polymers as a class of viscosifiers that demonstrate excellent performance in harsh temperature and salinity reservoirs. Scleroglucan polymers do not suffer from catastrophic drop in viscosity in the presence of high concentration of divalent ions. This makes produced water re-injection projects without water treatment a reality. This work demonstrates that cost-effective, high purity EOR grade Scleroglucan polymers, show excellent performance in lab trials as related to excellent rheological properties, injectivity, bio and thermal stability and with minimal shear degradation. Injectivity tests demonstrated good propagation through cores without blockage or injectivity issues. Resistance factors and residual resistance factors are in the desirable range. Core floods carried out in sandstone and carbonate outcrop cores demonstrated that adsorption values and oil recoveries are consistently in the expected range for polymer recoveries. Shear degradation studies showed that recycling scleroglucan through a centrifugal pump causes less than 5% drop in viscosity after 100 passes while synthetic polymer showed substantial loss after a single pass and a 50% drop after 10 passes through the same pump. Capillary shear testing (API RP 63 method) of scleroglucan shows little change in viscosity upon multiple passes through shear regimes greater than 150,000 s−1. Scleroglucan polymer solution showed less than 25% drop in viscosity after exposure to 115 °C for six months. No change in viscosity was observed at 95 °C after one year. Scleroglucan has no compatibility issues through 6 months (at 37, 85, and 95 °C) with glutaraldehyde and tributyl tetradecyl phosphonium chloride (TTPC) biocides. Long term biostability studies at various temperatures and salinities are ongoing - current data will be presented. Scleroglucan has excellent stability in the presence of hydrogen sulfide (H2S) and ferrous species (Fe2+) under fully aerobic conditions! This work provides insight on the potential of using EOR grade scleroglucan for CEOR in harsh condition reservoirs. Currently, the program is moving towards pilot implementation of a scleroglucan formulation to demonstrate large scale hydration, long term injectivity and oil recovery.
A Review of Ionospheric Scintillation Models (2015)

This is a general review of the existing climatological models of ionospheric radio scintillation for high and equatorial latitudes. Trans-ionospheric communication of radio waves from transmitter to user is affected by the ionosphere which is highly variable and dynamic in both time and space. Scintillation is the term given to irregular amplitude and phase fluctuations of the received signals and related to the electron density irregularities in the ionosphere. Key sources of ionospheric irregularities are plasma instabilities; every irregularities model is based on the theory of radio wave propagation in random media. It is important to understand scintillation phenomena and the approach of different theories. Therefore, we have briefly discussed the theories that are used to interpret ionospheric scintillation data. The global morphology of ionospheric scintillation is also discussed briefly. The most important (in our opinion) analytical and physical models of scintillation are reviewed here.
Fighting Spam by Encapsulating Policy in Email Addresses. (2003)

Everyday network interactions require users to give out their email address, yet no guarantees can be made about how this address will be used. Sometimes the address is given to a human (e.g., on a business card), but many times it is entered in a web form as part of a web transaction. Unfortunately, that email address frequently finds itself in spammers&amp;apos; lists, never to be removed again. We propose the concept of the Single-Purpose Address (SPA); SPAs are generated by a program, and then cut-andpasted into the web page (or other application) requesting an email address. In its more general form an SPA encodes a security policy that describes the acceptable use of the address; since senders cannot be trusted to abide by it, this policy is enforced by the receiver, who generated the policy in the first place. SPAs are cryptographically protected to shield them from tampering. Since SPAs are not meant to be typed by humans, but rather processed by computer only, they do not have to be short, memorable, or even pronounceable. We present ways to construct such addresses, and we show the implementation of an optimized case.
Guidebook to excellence: A directory of federal facilities and other resources for mathematics and science education improvement. [Contains acronym list] (1993)

The Guidebook to Excellence is a State-by-State directory of Federal facilities and other resources for improving mathematics and science education. This directory, the first of its kind, is being published to assist educators, parents, and students across the country in attaining the National Education Goals, particularly Goal No. 4: By the year 2000, US students will be first in the world in science and mathematics achievement. Some of the larger research facilities in this directory, such as those of NASA, EPA and the Departments of Energy, Commerce, and the Interior, provide a wide range of education programs, and some offer students and teachers hands on experience with state-of-the-art research in world class facilities. Other sites, such as those of the Department of Transportation or Agriculture may be quite small, but can provide assistance in a single field of research or workforce expertise. Also listed are individuals responsible for State or regional coordination of major programs, such as the US Department of Education's Eisenhower Mathematics and Science Education Program, or the National Science Foundation's Statewide Systemic Initiative Program. In addition, each State listing includes facilities or coordinators providing regional assistance from neighboring States.
Glyphosate induction of elevated levels of hydroxybenzoic acids in higher plants (1988)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGlyphosate induction of elevated levels of hydroxybenzoic acids in higher plantsJohn Lydon and Stephen O. DukeCite this: J. Agric. Food Chem. 1988, 36, 4, 813–818Publication Date (Print):July 1, 1988Publication History Published online1 May 2002Published inissue 1 July 1988https://pubs.acs.org/doi/10.1021/jf00082a036https://doi.org/10.1021/jf00082a036research-articleACS PublicationsRequest reuse permissionsArticle Views450Altmetric-Citations97LEARN 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
NUCLEAR WASTEFORM AND BARRIER MATRIXES INTERACTIONS WITH CARBONATE ROCKS. (2022)

Abstract not provided.
Clinical complexity and impact of the ABC (Atrial fibrillation Better Care) pathway in patients with atrial fibrillation: a report from the ESC-EHRA EURObservational Research Programme in AF General Long-Term Registry (2022)

An ABC-adherent approach reduces the risk of major outcomes in clinically complex AF patients. Ensuring adherence to the ABC pathway is essential to improve clinical outcomes among clinically complex AF patients.
Hydrogen-bonding effects in photo-Fries and photoanilide rearrangements (1967)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHydrogen-bonding effects in photo-Fries and photoanilide rearrangementsDurvasula Visweswara Rao and Vincent LambertiCite this: J. Org. Chem. 1967, 32, 9, 2896–2898Publication Date (Print):September 1, 1967Publication History Published online1 May 2002Published inissue 1 September 1967https://doi.org/10.1021/jo01284a057Request reuse permissionsArticle Views173Altmetric-Citations13LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (458 KB) Get e-Alertsclose Get e-Alerts
Dual-Output Trans-Impedance Amplifier of Cost-effective CMOS Optical Receiver for Digital Audio Interfaces (2007)

This paper proposes a dual-output trans-impedance amplifier (TIA) to provide amplified voltage signal and reference signal simultaneously to implement compact and cost-effective CMOS optical receiver. Using proposed dual-output TIA, an optical receiver was designed and fabricated in a standard 0.25muum CMOS technology. The receiver achieves the pulse width distortion within plusmn 3% against wide frequency range from DC to 20Mbps as well as wide dynamic range from -30.00dBm to -23.01dBm. The measured results confirm that applying this technique in digital audio interface can make the optical receiver more small and economical.
Generating and Comparing Three-Dimensional Images of Structures Obtained by Electron Microscopy and other Methodologies (1996)

“Subtract the mind,…and the eye is open to no purpose, which before did see.” “Before my eye can see the painting on the wall, this must…be borne into my phantasy, to be assimilated by my understanding.” (both attributed to 14th century philosopher-mystic, Meister Eckhart). Images of models provide a way to look at structures. A well-executed model can embody the results of many studies in a way that our minds easily grasp. We learn from them, and we teach from them. They are especially important in structural studies because comprehension of spatial relationships is key to our understanding. The computer, with its ability to generate, color and animate three-dimensional objects, is a source of both good and evil when producing images of models. Models are really analogies intended to illustrate particular attributes of a structure. A “dangerous pitfall is hidden in the very nature of analogies themselves. Every grade [of analogy] can be traced between remote analogies, and analogies which are so close that they pass into identities, and – paradoxically enough – it is often the remote analogies which have the greatest value, while it is the close analogies of which we have to beware. The misuse of an analogy by pressing it to the point at which it is confused with an identity, is one to which biological thought is particularly liable.” (Agnes Arber, 1953).
Haptic Rendering of Thin, Deformable Objects with Spatially Varying\n Stiffness (2020)

In the real world, we often come across soft objects having spatially varying\nstiffness, such as human palm or a wart on the skin. In this paper, we propose\na novel approach to render thin, deformable objects having spatially varying\nstiffness (inhomogeneous material). We use the classical Kirchhoff thin plate\ntheory to compute the deformation. In general, the physics-based rendering of\nan arbitrary 3D surface is complex and time-consuming. Therefore, we\napproximate the 3D surface locally by a 2D plane using an area-preserving\nmapping technique - Gall-Peters mapping. Once the deformation is computed by\nsolving a fourth-order partial differential equation, we project the points\nback onto the original object for proper haptic rendering. The method was\nvalidated through user experiments and was found to be realistic.\n
Fracture mechanics of monolayer molybdenum disulfide (2015)

Molecular dynamics (MD) modeling is used to study the fracture toughness and crack propagation path of monolayer molybdenum disulfide (MoS(2)) sheets under mixed modes I and II loading. Sheets with both initial armchair and zigzag cracks are studied. The MD simulations predict that crack edge chirality, tip configuration and the loading phase angle influence the fracture toughness and crack propagation path of monolayer MoS(2) sheets. Furthermore, under all loading conditions, both armchair and zigzag cracks prefer to extend along a zigzag path, which is in agreement with the crack propagation path in graphene. A remarkable out-of-plane buckling can occur during mixed mode loading which can lead to the development of buckling cracks in addition to the propagation of the initial cracks.
Active GHz clock network using distributed PLLs (2000)

A novel clock network composed of multiple synchronized phase-locked loops is analyzed, implemented, and tested. Undesirable large-signal stable (mode-locked) states dictate the transfer characteristic of the phase detectors; a matrix formulation of the linearized system allows direct calculation of system poles for any desired oscillator configuration. A 16-oscillator 1.3-GHz distributed clock network in 0.35-/spl mu/m CMOS is presented here.
Posteromedial dislocation of the elbow with lateral condyle fracture: The fractured lateral condyle adheres to the radial head (2012)

Posteromedial dislocation of elbow with lateral condyle fracture is a rare with only a few reported cases. This study describes two children who presented with posteromedial dislocation of elbow with lateral condylar fracture of the distal humerus in which the fractured lateral condyle adhered to the radial head through the intact posterior capsule and lateral collateral ligament. These cases demonstrate the mechanism of this type of injury: during a direct fall onto an outstretched hand, varus force is exerted, resulting in an avulsed lateral condyle while the radial head maintains its relationship with the displaced capitellum through the intact posterior capsule and lateral collateral ligament.
Reinitiating Warfarin: Relationships Between Dose and Selected Patient, Clinical and Hospital Measures (2014)

We observed varied dosing strategies for reinitiating patients on warfarin and, in more recent years, an apparent trend toward reinitiating patients on the same dose. However we could not associate dosing strategy with specific patient demographic, clinical, medication or hospital factors. Many factors influence whether a physician reinitiates a patient at a different dose than his/her prior stable warfarin dose. However, in the absence of clinical indications for modification, we believe patients with a previously established effective dose should be reinitiated at that same dose following temporary warfarin discontinuation.
Variable pulsewidth erbium:YAG laser ablation of the ureter and urethra in vitro and in vivo: optimization of the laser fluence, pulse duration, and pulse repetition rate (2004)

Stricture recurrence frequently occurs due to mechanical or thermal insult during endourologic treatment of ureteral and urethral strictures. Optimization of the Er:YAG laser for precise incision of strictures was conducted using ureteral and urethral tisssue samples, ex vivo, and a laparoscopic porcine ureteral model with exposed ureter, in vivo. Erbium:YAG laser radiation with a wavelength of 2.94 microns, pulse lengths of 8, 70, and 220 microseconds, output energies of 2 - 35 mJ, fluences of 1 - 25 J/cm<sup>2</sup>, and pulse repetition rates of 5 - 30 Hz, was delivered through germanium oxide optical fibers in contact with the tissue. Incision of the ureteral wall was achieved in vivo with less than 20 pulses at a laser fluence of 4 J/cm<sup>2</sup>. Thermal damage was reduced from 30 - 60 microns to 10 - 20 microns by shortening the laser pulse duration from 220 to 70 microseconds. Pulse repetition rates above 20 Hz resulted in larger thermal damage zones ranging from 60 - 120 microns. The Er:YAG laser, operating at a pulse duration of approximately 70 microseconds, a fluence of 4 J/cm<sup>2</sup> or greater, and a repetition rate less than 20 Hz, is capable of rapidly incising urethral and ureteral tissues, in vivo, with minimal thermal and mechanical side-effects.
Effects of antibiotics on feeding and development of the pea aphid, Acyrthosiphon pisum (Harris) (Homoptera: Aphididae) (1976)

Four antibiotics were individually incorporated into holidic diets that were fed to the pea aphid, Acyrthosiphon pisum (Harris). Streptomycin and penicillin at 0.01% had little effect on growth, but reduced fecundity and survival. Chloromycetin and neomycin at 0.01% greatly reduced growth and survival, and aphids did not reach the adult stage. Higher concentrations (0.1%) of streptomycin and penicillin significantly reduced growth and survival, and no adults were produced if continued on penicillin. However, such a high concentration did not seem to inflict irrecoverable damages, since when aphids that were fed for 7 days on 0.1% streptomycin and penicillin were returned to antibiotic-free (control) diets they gained weight, reached maturity, and reproduced, although progeny survival was very low.Streptomycin appeared to be phagostimulatory, whereas penicillin and chloromycetin acted as feeding deterrents. First-instar larvae on the control diet, and on diets containing 0.1% streptomycin, penicillin, and chloromycetin in 24 h ingested 95.4, 120.8, 45.4, and 35.7 μg per aphid, respectively. It is suggested that these three antibiotics caused only partial damage to the symbiotes of the aphid, and that the poor growth, survival, and fecundity associated in the first generation with high concentrations of either penicillin or chloromycetin resulted mainly from a lower rate of diet intake.
From Market Making to Matchmaking: Does Bank Regulation Harm Market Liquidity? (2022)

Abstract Postcrisis bank regulations raised market-making costs for bank-affiliated dealers. We show that this can, somewhat surprisingly, improve overall investor welfare and reduce average transaction costs despite the increased cost of immediacy. Bank dealers in OTC markets optimize between two parallel trading mechanisms: market making and matchmaking. Bank regulations that increase market-making costs change the market structure by intensifying competitive pressure from nonbank dealers and incentivizing bank dealers to shift their business activities toward matchmaking. Thus, postcrisis bank regulations have the (unintended) benefit of replacing costly bank balance sheets with a more efficient form of financial intermediation.
Analysis of chinoform binding to human serum albumin by an improved partition equilibrium method. (1986)

Previous methods such as equilibrium dialysis to measure chinoform binding to human serum albumin are flawed with problems due to the drug's poor solubility in neutral aqueous solutions and its strong adsorption onto the surfaces of dialysis membrane and other apparatus. Accordingly, we adopted a previously reported improved partition equilibrium method to keep off such difficulties, and developed additionally a rapid method using oil-wells. Both of these methods were used in this study. The equilibration of both partition and binding was attained after 6 h by the standard method and after 2 h by the rapid method. Two binding sites were found on the albumin molecule. One had an extremely large affinity constant of 10(8) M-1 and the other had a moderate one of 10(6) M-1. These values obtained with both methods agreed well and were sufficiently reproducible. The bound percentage of chinoform in serum was estimated at 99.999% under the condition where chinoform reveals its nervous toxicity. The binding constant had a maximum at pH 7.6, the physiological pH of serum. The pH profile suggested the participation of a histidine residue in the binding site. The inhibition experiment with palmitic acid revealed that the first binding site of chinoform was not identical with that of palmitic acid. The present method is applicable to analyses of protein binding by other drugs showing similar physicochemical properties as chinoform.
CAPILLARY PLEXUS ANOMALIES IN DIABETIC RETINOPATHY ON OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY (2015)

Optical coherence tomography angiography allowed detecting DR anomalies in both superficial and deep capillary plexus in all eyes. The ability of OCTA to detect microaneurysms was lower than that of FA although its accuracy for assessing capillary nonperfusion was better and may enable a proper grading of DR progression.
Utilization of Computed Tomography in Temporal Bone Fractures at a Large Level I Trauma Center (2020)

4 Laryngoscope, 131:E278-E282, 2021.