gebhart/patrepeval huggingface dataset:
Optical investigations on Si‐doped InN films (2005)

We report a detailed study of the optical properties unintentionally doped and n-doped InN films grown by Metal Organic Vapour Phase Epitaxy. When increasing the doping, a blue-shift of the absorption and reflectance spectra is found that we quantitatively correlate with the doping. Our measurements give us the value of the two-band Kane model parameter: 12 eV and an asymptotic value for the InN band gap at 300 K: 1160 meV. Moss-Burstein shift and band gap renormalization effects are computed as well as a non-parabolic effective mass. This is found to equal 0.09 m0 in the unintentionally doped case. The photoluminescence spectra are strongly redshifted with respect to the bandgap and are always peaking near 760 meV. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Theory and Use of Antibiotic Combinations (1957)

AbstractThe following abstracts were prepared from papers presented at the Brook Lodge Invitational Symposium, held at Kalamazoo, Michigan, and sponsored by The Upjohn Company. Devoted to a discussion of the theory and use of antibiotic combinations, these abstracts will be published in a two part series representing the laboratory and the clinical aspects of the subject.
Automatic essay grading using text categorization techniques (1998)

Several standard text-categorization techniques were applied to the problem of automated essay grading. Bayesian independence classifiers and knearest-neighbor classifiers were trained to assign scores to manually-graded essays. These scores were combined with several other summary text measures using linear regression. The classifiers and regression equations were then applied to a new set of essays. The classifiers worked very well. The agreement between the automated grader and the final manual grade was as good as the agreement between human graders.
Electronic structure, phase stability, and semimetal-semiconductor transitions in Bi (1999)

The structural stability of bulk Bi is studied using the local-density full-potential linear muffin-tin orbital method. The effect of both the trigonal shear angle and internal displacement on the electronic structure is determined. It is shown that the internal displacement changes the Bi electronic structure from a metal to a semimetal, in qualitative agreement with a Jones-Peierls-type transition. The total energy is calculated to have a double-well dependence on the internal displacement, and to provide a stabilization of the trigonal phase. We show that an increase of trigonal shear angle (towards the cubic value of $60\ifmmode^\circ\else\textdegree\fi{})$ leads to a semimetal-semiconductor transition in Bi. Using coherency strain arising from a film/substrate lattice constant mismatch, this may provide a way to induce semiconducting behavior in Bi films, and with it to control their thermoelectric properties.
Über Hämoglobine, VI. Ein Verfahren zur präparativen Gewinnung natürlicher Peptide. Die Isolierung der tryptischen Spaltprodukte von Humanhämoglobin A über Dowex 1X2 unter Verwendung ninhydrinnegativer flüchtiger Puffer (1961)

Article Über Hämoglobine, VI. Ein Verfahren zur präparativen Gewinnung natürlicher Peptide. Die Isolierung der tryptischen Spaltprodukte von Humanhämoglobin A über Dowex 1X2 unter Verwendung ninhydrinnegativer flüchtiger Puffer was published on January 1, 1961 in the journal Biological Chemistry (volume 323, issue Jahresband).
Outcomes Following Placement of Non–Cross-Linked Porcine-Derived Acellular Dermal Matrix in Complex Ventral Hernia Repair (2014)

Abstract Repair of complex ventral hernias frequently results in postoperative complications. This study assessed postoperative outcomes in a consecutive cohort of patients with ventral hernias who underwent herniorrhaphy using components separation techniques and reinforcement with non–cross-linked intact porcine-derived acellular dermal matrix (PADM) performed by a single surgeon between 2008 and 2012. Postoperative outcomes of interest included incidence of seroma, wound infection, deep-vein thrombosis, bleeding, and hernia recurrence determined via clinical examination. Of the 47 patients included in the study, 25% were classified as having Ventral Hernia Working Group grade 1 risk, 62% as grade 2, 2% as grade 3, and 11% as grade 4; 49% had undergone previous ventral hernia repair. During a mean follow-up of 31 months, 3 patients experienced hernia recurrence, and 9 experienced other postoperative complications: 4 (9%) experienced deep-vein thrombosis; 3 (6%), seroma; 2 (4%), wound infection; and 2 (4%), bleeding. The use of PADM reinforcement following components separation resulted in low rates of postoperative complications and hernia recurrence in this cohort of patients undergoing ventral hernia repair.
The image‐guided operating room—Utility and impact on surgeon's performance in the head and neck surgery (2019)

The image quality of CBCT in the image-guided OR is good for bony detail and complex oncological reconstructions in the head and neck setting but probably has limited benefit for intraoperative soft tissue delineation. Future studies must also focus on clinical outcomes to help demonstrate the value of the image-guided OR.
ChemInform Abstract: NUCLEOSIDE 62. MITT. SYNTH. VON NUCLEOSID‐ANTIBIOTICA 2. MITT. SYNTH. DER METHYL‐4‐AMINO‐4‐DESOXY‐D‐GLUCOSIDURONSAEURE, EINER VERBINDUNG MIT DEM KOHLENHYDRAT‐TEIL DES GOUGEROTINS (1970)

Abstract Zur Synthese von (VIII) wird Methyl‐4wazido‐4‐desoxy‐a‐D‐glucopyranosid (I) trityliert, der 6‐Trityläther (II) zum 2,3‐Dibenzoat (III) acyliert, das Dibenzoat zum Methyl‐4‐azido‐2,3‐di‐O‐benzoyl‐a‐D‐glucopyranosid (IV) gespalten und dieses zum Glucuronsäure‐Derivat (V) oxidiert.
An Expression-Driven Approach to the Prediction of Carbohydrate Transport and Utilization Regulons in theHyperthermophilic Bacterium <i>Thermotoga maritima</i> (2005)

Comprehensive analysis of genome-wide expression patterns during growth of the hyperthermophilic bacterium Thermotoga maritima on 14 monosaccharide and polysaccharide substrates was undertaken with the goal of proposing carbohydrate specificities for transport systems and putative transcriptional regulators. Saccharide-induced regulons were predicted through the complementary use of comparative genomics, mixed-model analysis of genome-wide microarray expression data, and examination of upstream sequence patterns. The results indicate that T. maritima relies extensively on ABC transporters for carbohydrate uptake, many of which are likely controlled by local regulators responsive to either the transport substrate or a key metabolic degradation product. Roles in uptake of specific carbohydrates were suggested for members of the expanded Opp/Dpp family of ABC transporters. In this family, phylogenetic relationships among transport systems revealed patterns of possible duplication and divergence as a strategy for the evolution of new uptake capabilities. The presence of GC-rich hairpin sequences between substrate-binding proteins and other components of Opp/Dpp family transporters offers a possible explanation for differential regulation of transporter subunit genes. Numerous improvements to T. maritima genome annotations were proposed, including the identification of ABC transport systems originally annotated as oligopeptide transporters as candidate transporters for rhamnose, xylose, beta-xylan, and beta-glucans and identification of genes likely to encode proteins missing from current annotations of the pentose phosphate pathway. Beyond the information obtained for T. maritima, the present study illustrates how expression-based strategies can be used for improving genome annotation in other microorganisms, especially those for which genetic systems are unavailable.
GAS SENSITIVITY OF CuO/ZnO HETERO-CONTACT (1986)

Abstract Gas sensitivity of CuO/ZnO hetero-contact was investigated at 160–340 °C. The gas sensitivity changed not only with the kind of gases and measuring temperature but with the voltage applied to the hetero-contact. Very high sensitivity and selectivity for CO gas was observed at 260 °C under the applied voltage of 0.1–0.9 V.
Thermodynamic Characterization of the Protein−Protein Interaction in the Heteromeric <i>Bacillus subtilis</i> Pyridoxalphosphate Synthase (2007)

Two biosynthetic routes for the synthesis of pyridoxal 5'-phosphate (PLP), the biologically active compound of vitamin B6, have been characterized. The major pathway leads to direct formation of PLP from a pentasaccharide and a trisaccharide and is operative in plants, fungi, protozoa, and bacteria. This reaction is catalyzed by a single glutamine amidotransferase enzyme complex consisting of a pyridoxal synthase, termed Pdx1, and a glutaminase, termed Pdx2. In this complex, Pdx2 generates ammonia from L-glutamine and supplies it to Pdx1 for incorporation into PLP. The glutaminase activity of Pdx2 requires the presence of Pdx1 in a heteromeric complex, previously characterized by a crystallographic three-dimensional (3D) structure determination. Here, we give a thermodynamic description of complex formation of Bacillus subtilis PLP synthase in the absence or presence of L-glutamine. We show that L-glutamine directly affects the tightness of the protein complex, which exhibits dissociation constants of 6.9 and 0.3 microM in its absence and presence, respectively (at 25 degrees C). This result relates to the positioning of L-glutamine on the heterodimer interface as seen in the 3D structure. In an analysis of the temperature dependence of the enthalpy, negative heat capacity changes (deltaCp) agree with a protein interface governed by hydrophobic interactions. The measured heat capacity change is also a function of L-glutamine, with a negative deltaCp in the presence of L-glutamine and a more negative one in its absence. These findings suggest that L-glutamine not only affects the strength of complex formation but also determines the forces involved in complex formation, with regard to different relative contributions of hydrophobic and hydrophilic interactions.
Pharmacokinetic analysis of the effect of barbiturate on the anticoagulant action of warfarin in man (1970)

Pretreatment with heptabarbital has no effect on prothrombin complex activity before warfarin administration and does not affect the apparent first‐order rate constant for prothrombin complex activity degradation and the relationship between plasma warfarin concentration and prothrombin complex activity synthesis rate. The decreased response to warfarin during barbiturate administration is therefore due only to the inductive effect of the barbiturate on the warfarin‐metabolizing enzyme system. There is no evidence that barbiturate affects the distribution of warfarin in the body, the inherent activity of the blood coagulation process, or the response of the appropriate receptor to warfarin.
Simple strategy of reactivation of a partially inactivated penicillin g acylase biocatalyst in organic solvent and its impact on the synthesis of β‐lactam antibiotics (2009)

Some reactions of organic synthesis require to be performed in rather aggressive media, like organic solvents, that frequently impair enzyme operational stability to a considerable extent. We have studied the option of developing a reactivation strategy to increase biocatalyst lifespan under such conditions, under the hypothesis that organic solvent enzyme inactivation is a reversible process. Glyoxyl agarose immobilized penicillin G acylase and cross-linked enzyme aggregates of the enzyme were considered as biocatalysts performing in dioxane medium. Reactivation strategy consisted in re-incubation in aqueous medium of the partly inactivated biocatalysts in organic medium, best conditions of reactivation being studied with respect to dioxane concentration and level of enzyme inactivation attained prior to reactivation. Best results were obtained with glyoxyl agarose immobilized penicillin G acylase at all levels of residual activity studied, with reactivations up to 50%; for the case of a biocatalyst inactivated down to 75% of its initial activity, full recovery of enzyme activity was obtained after reactivation. The potential of this strategy was evaluated in the thermodynamically controlled synthesis of deacetoxycephalosporin G in a sequential batch reactor operation, where a 20% increase in the cumulative productivity was obtained by including an intermediate stage of reactivation after 50% inactivation.
Talin1 is critical for force-dependent reinforcement of initial integrin–cytoskeleton bonds but not tyrosine kinase activation (2003)

Cells rapidly transduce forces exerted on extracellular matrix contacts into tyrosine kinase activation and recruitment of cytoskeletal proteins to reinforce integrin-cytoskeleton connections and initiate adhesion site formation. The relationship between these two processes has not been defined, particularly at the submicrometer level. Using talin1-deficient cells, it appears that talin1 is critical for building early mechanical linkages. Deletion of talin1 blocked laser tweezers, force-dependent reinforcement of submicrometer fibronectin-coated beads and early formation of adhesion sites in response to force, even though Src family kinases, focal adhesion kinase, and spreading were activated normally. Recruitment of vinculin and paxillin to sites of force application also required talin1. FilaminA had a secondary role in strengthening fibronectin-integrin-cytoskeleton connections and no role in stretch-dependent adhesion site assembly. Thus, force-dependent activation of tyrosine kinases is independent of early force-dependent structural changes that require talin1 as part of a critical scaffold.
THE THIRD BODY EFFICIENCY OF MOLECULAR BROMINE IN THE RECOMBINATION OF BROMINE ATOMS IN ARGON (1963)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTHE THIRD BODY EFFICIENCY OF MOLECULAR BROMINE IN THE RECOMBINATION OF BROMINE ATOMS IN ARGONMichael R. Basila and Robert L. StrongCite this: J. Phys. Chem. 1963, 67, 2, 521–523Publication Date (Print):February 1, 1963Publication History Published online1 May 2002Published inissue 1 February 1963https://pubs.acs.org/doi/10.1021/j100796a519https://doi.org/10.1021/j100796a519research-articleACS PublicationsRequest reuse permissionsArticle Views65Altmetric-Citations11LEARN 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
Characterisation of Lzsa Glass Ceramics Filters Obtained by the Replication Method (2008)

In this work the replication process to produce porous glass ceramics was used. Polymeric sponges of different sizes of pores (small, mixing of small and large, large) were impregnated, by immersion in a slurry of the precursor glass ceramic of composition Li2O-ZrO2-SiO2-Al2O3 and submitted to heat treatment The characterization of porous glass ceramics structures was made by scanning electron microscopy (SEM), stereoscopy and image analysis, and permeability measurements.
Illite-smectite from the North Sea investigated by scanning tunnelling microscopy (1992)

Abstract Two samples of illite-smectite (I-S) isolated from Upper Jurassic clays in well 2/7-3 (3365 m) and well 2/11-1 (4548 m) have been investigated by scanning tunnelling microscopy (STM), and the particle shape and dimensions have been correlated to results from transmission electron microscopy (TEM) on shadowed specimens and results from atomic-force microscopy (AFM). By STM, lath-like and equant particles were observed in both samples, some of the particles having sharp edges. In the I-S from well 2/11-1, spiral-shaped particles were also seen. For both samples, the most frequent particle diameter was 100–200 Å. Particle-thickness distributions from STM and TEM were similar for the I-S from well 2/7-3, being dominated by 10 Å thick particles. For I-S from 2/11-1, the STM particle-thickness distribution has a predominance of 20 Å thick particles, but the TEM particle-thickness distribution is broad, with about equal amounts of 20, 30, 40, 50 and 60 Å thick particles. The AFM particle-thickness distribution for this I-S resembles the TEM thickness distribution. It is concluded that mainly thin (10 and 20 Å) particles are seen by STM. Failure of AFM to show sharp particle edges (seen in STM and TEM) might be attributed to the AFM tip movement or tip shape. In STM, I-S particles from well 2/7-3 have peaks along edges, whereas I-S particles from well 2/11-1 have rims. These rims are also seen in AFM and are therefore real geometrical features, probably a result of two-dimensional growth, whereas the spirals in the I-S from well 2/11-1 demonstrate three-dimensional growth. The minimum thickness of most particles is 10 Å.
Towards Improved Vehicle Arrival Time Prediction in Public Transportation: Integrating SUMO and Kalman Filter Models (2015)

Accurate bus arrival time prediction is a key component for improving the attractiveness of public transport. In this research, a model of bus arrival time prediction, which aims to improve arrival time accuracy, is proposed. The arrival time will be predicted using a Kalman Filter (KF) model, by utilising information acquired from social networks. Social Networks feed road traffic information into the model, based on information provided by people who have witnessed events and then updated their social media accordingly. In order to accurately assess the efficiency of KF model, we simulate realistic road scenarios using the traffic simulator Simulation in Urban Mobility (SUMO). SUMO is capable of simulating real world road traffic using digital maps and realistic traffic models. This paper discusses modelling a road journey using Kalman Filters and verifying the results with a corresponding SUMO simulation. As a second step, SUMO based measures are used to inform the KF model. Integrating the SUMO measures with the KF model can be seen as an initial step to verifying our premise that real time data from social networks can eventually be used to improve the accuracy of the KF prediction. Furthermore, it demonstrates an integrated experimental environment.
Interactions of Arenes and Thioethers Resulting in Facilitated Oxidation (2008)

Synthesis of 6-endo and 6-exomethylthio-2-endoarylbicyclo[2.2.1]heptanes was accomplished stereoselectively. The ionization energies, determined by photoelectron spectroscopy, and electrochemical oxidation potentials, determined by cyclic voltammetry, were lower for the 6-endomethylthio compounds than for their 6-exomethylthio analogues. Calculations supported the notion that facilitation of electron transfer in the 6-endomethylthio compounds results from through-space S...pi interaction.
How Efficient Can Routing of Individual 37.5 GHz-Spaced 100 Gb/s 33 GBaud Carriers be in WDM Mesh Core Networks? (2018)

With a real-time transponder, we assess the penalty on a 100 Gb/s 33 GBaud carrier through a series of sixteen 37.5 GHz-wide filters, and discuss to what extent this suits WDM mesh networks.
Cf‐252 particle desorption mass spectrometry of photo‐oxidized polystyrene (1990)

Abstract Cf‐252 particle (plasma) desorption mass spectra are presented for polystyrene surfaces before and after exposure in air to UV light. The photo‐oxidation produces changes observed in both positive and negative ion spectra. Oxygen incorporation produces a slight increase in intensity of m / z + 18 and 19 (H 2 O + and H 3 O + ) and m / z − 16 and 17 (O − and OH − ). Also, the relative intensity of m / z + 91 decreases after photo‐oxidation and is interpreted as the formation of a bond alpha to the benzene ring. New peaks are detected at m / z + 226, 227 and 331, and are tentatively assigned to hydroperoxide‐containing structures. Other changes in the spectrum include the increase in intensity of m / z + 77 and 105 arising from easily ionized fragments of the oxidation products of polystyrene.
BIOCHEMICAL STUDIES OF INFECTIOUS ANAEMIA IN THE HORSE. XI (1938)

(1) 健康馬血清及血漿の鐵含有量は略同樣にして弱酸性にて抽出せらるる離れ易い鐵は0.087-0.136mg%なり。馬血清及血漿は此他尚ほ特に弱酸性にて抽出せられざる鐵を含み總鐵量0.260-0.300mg%を有す。(2) 傳貧馬の血清鐵殊に離れ易き鐡含有量は著しく上昇せるも疑似症馬は略正常なり。(3) 健康馬の血清に三塩化醋酸を加へたる後一夜靜置するか又は過酸化水素少許を加ふれば器底に沈積する蛋白質の沈澱青緑色に着色す.人,家兎其他の血清に見られざる事なり。(4) 傳貧馬血清は健康馬血清と同樣青緑色の蛋白質沈澱を生ずれ共傳貧疑似症馬血清の蛋白質沈澱は殆んど着色せず。從て本色彩反應は傳貧と疑似症との鑑別に應用する事を得るに似たり.多數症例に對する試用を乞ふ。
Intra-Platoon Collision Behavior during Emergency Operations (1994)

SUMMARY This paper presents current research regarding intra-platoon collision dynamics for rapid decelerations. Measures of ride quality and impact severity are introduced to allow comparisons between different collision scenarios. In this study, the disturbance input to the platoon is assumed to be a rapid braking of the lead vehicle. Several deceleration rates are used to assess the overall platoon behavior and the effect of the intra-platoon collisions on the platoon passengers. The role of the desired headway spacing on preventing the occurrence of intra-platoon collisions and improving rider comfort is discussed.
METAL COMBUSTION PROCESSES. Aeornautical Engineering Laboratory Report No. 473 (1959)

Since the light metallic elements undoubtedly will play a greater and greater role as propellants in advanced chemical and nuclear-chemical propulsion systems, interest in their burning characteristics is increasing. Presented here are some preliminary conclusions on burning characteristics. These conclusions are based on fundamental physical considerations and not on experimental results. An analytical approach to calculate the burning rate of metals is also suggested. This approach differs from the diffusion-droplet approach in that it includes radiation feed-back and loss terms. Such terms can be important at the high temperatures of the diffusion film surrounding a burning metal. (auth)
Recurring beams in hollow metal waveguides: paraxial approximation (2002)

For optical and near-optical applications in electromagnetics, the directed propagation of waves in free space and in lenslike media is often in the Cartesian form of Gaussian or more general Hermite-sinusoidal-Gaussian beams. It has been shown that recurring (rather than continuing) forms of such beams are possible in the paraxial approximation for certain hollow metal waveguides, in which multiple reflections from the waveguide walls may occur. Limitations on this recurrence behavior implicit in use of the paraxial approximation are considered here, and estimates are obtained for the maximum propagation distance before the onset of significant distortion of the recurring beams.
CHANGES IN RETINAL SENSITIVITY IN PATIENTS WITH NEOVASCULAR AGE-RELATED MACULAR DEGENERATION AFTER SYSTEMIC BEVACIZUMAB (AVASTIN) THERAPY (2008)

Systemic bevacizumab therapy induced a significant increase in mean retinal sensitivity at month 6 of follow-up and a significant decrease of mean absolute scotoma size at month 3. The MP 1 Microperimeter proved to be a valuable tool in the evaluation of functional benefits and retinal safety of anti-VEGF therapy with systemic bevacizumab.