gebhart/patrepeval huggingface dataset:
Trusted watermarks (2009)

The Internet becomes more and more integrated into everyday life these days. Reasons may be increasing data transfer rates and decreasing connection fees. Increasing data transfer rates on the client-side cause a widespread usage of peer-to-peer techniques that balance network load between servers and clients. Especially when distributing content to a multitude of customers, usage of peer-to-peer mechanisms comes in handy. Another main impact of the Internet nowadays is an increasing appetite for on-demand content which leads to entertainment devices providing customers with on-demand media from the Internet in their living rooms.
Integrated tunable DBR quantum cascade lasers with 30 cm<sup>-1</sup>tuning range at 4.7 μm (2009)

We report the fabrication and measurement results of an integrated distributed Bragg reflector (DBR) tunable buriedheterstructure (BH) quantum-cascade-laser (QCL) emitting around λ ~ 4.7 μm. We also demonstrated a special laser device bonding technique by utilizing two submounts for the gain and DBR grating sections of the laser. As a result, separated temperature controls of the two sections were successfully accomplished. At 293K, a wavelength tuning from 4.605 μm to 4.670 μm was obtained when the grating section temperature was changed by a miniature thermoelectric (TE) cooler. This is corresponding to a tuning range of 65 nm or equivalently 29.831 cm<sup>-1</sup>. The tuning efficiency is 0.0325 nm/mA. This technology is particularly desirable for chemical sensing, spectroscopic measurements and medical applications.
Formation of an ion-pair intermediate in an SN2-type reaction (1975)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFormation of an ion-pair intermediate in an SN2-type reactionF. G. Bordwell and Thomas G. MeccaCite this: J. Am. Chem. Soc. 1975, 97, 1, 123–127Publication Date (Print):January 1, 1975Publication History Published online1 May 2002Published inissue 1 January 1975https://pubs.acs.org/doi/10.1021/ja00834a021https://doi.org/10.1021/ja00834a021research-articleACS PublicationsRequest reuse permissionsArticle Views172Altmetric-Citations12LEARN 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
Effects of Diabetes and Insulin Resistance on Endothelial Functions (2005)

Cardiovascular complications have been the leading cause of mortality and morbidity in patients with diabetes and affect a variety of tissue and organs including retina, myocardium, nerves, skin, and kidney (1–3). The incidence of coronary artery disease (CAD) in patients with diabetes or insulin-resistance syndrome is increased in subjects older than 30 years (4,5). The Framingham study, which surveyed longitudinally more than 5000 patients with 18 years of follow-up indicated that major clinical manifestation of CAD were increased in diabetic patients, especially in women (2). The risk of CAD increases with duration, reflecting the effect of the aging process, whereas in diabetic patients, both aging and duration of diabetes increased the risk of cardiac mortality: more than 50% of mortality in diabetic patients is related to cardiovascular disease (CVD). The incidence of cardiac or cerebrovascular disease is two to four times higher in diabetic patients than those of the general population (6,7).
Miscibility-property correlations in blends of glassy amorphous polymers (2001)

Blends were prepared from seven polymers in various combinations in the entire composition range. The Flory-Huggins interaction parameter (χ12) was used for the quantitative estimation of miscibility. The determination of χ12 was attempted by several experimental techniques including the measurement of transparency, glass transition temperature, solvent diffusion and mechanical properties. The relatively simple methods used for the estimation of miscibility work surprisingly well. Solvent absorption can be determined easily for practically all blends, thus the method offers a quantitative measure of component interaction if the solvent is selected properly. After appropriate data reduction, the composition dependence of mechanical properties also supplies a quantitative estimate of compatibility. Although the approach presented in the paper reflects well the general correlation between miscibility and properties, it must be refined and improved in order to obtain a reliable estimate of blend performance.
Microbial Colonization and Competition on the Marine Alga <i>Ulva australis</i> (2006)

Pseudalteromonas tunicata and Roseobacter gallaeciensis are biofilm-forming marine bacteria that are often found in association with the surface of the green alga Ulva australis. They are thought to benefit the plant host by producing inhibitory compounds that are active against common fouling organisms. We investigated factors that influence the ability of P. tunicata and R. gallaeciensis to attach to and colonize the plant surface and also the competitive interactions that occur between these organisms and other isolates from U. australis during biofilm formation on the plant surface. A surprisingly high number of P. tunicata cells, at least 10(8) cells ml(-1), were required for colonization and establishment of a population of cells that persists on axenic surfaces of U. australis. Factors that enhanced colonization of P. tunicata included inoculation in the dark and pregrowth of inocula in medium containing cellobiose as the sole carbon source (cellulose is a major surface polymer of U. australis). It was also found that P. tunicata requires the presence of a mixed microbial community to colonize effectively. In contrast, R. gallaeciensis effectively colonized the plant surface under all conditions tested. Studies of competitive interactions on the plant surface revealed that P. tunicata was numerically dominant compared with all other bacterial isolates tested (except R. gallaeciensis), and this dominance was linked to production of the antibacterial protein AlpP. Generally, P. tunicata was able to coexist with competing strains, and each strain existed as microcolonies in spatially segregated regions of the plant. R. gallaeciensis was numerically dominant compared with all strains tested and was able to invade and disperse preestablished biofilms. This study highlighted the fact that microbial colonization of U. australis surfaces is a dynamic process and demonstrated the differences in colonization strategies exhibited by the epiphytic bacteria P. tunicata and R. gallaeciensis.
Robots and Education in the classroom and in the museum: On the study of robots, and robots for study (2000)

The Mobile Robot Programming Lab and the Toy Robots Initiative at Carnegie Mellon&apos;s Robotics Institute both focus on the interaction between humans and robots for the sake of education. This paper describes two specific endeavors that are representative of the work we do in robot education and human-robot interaction. The first section describes the Mobile Robot Programming Lab curriculum designed for undergraduate and graduate students with little or no mobile robotics experience. The second section describes the process by which an edutainment robot, Insect Telepresence, was designed, tested and evaluated by our group and CMU&apos;s HumanComputer Interaction Institute. Introduction Mobile robots ground ethereal computation to palpable physicality, and as a result they have the potential to excite and inspire children and adults in a way that no desktop computer can. Robots themselves make an inherently fascinating hybrid-dynamical system for study and comprehension. At the s...
Skeletal Muscle Abnormalities in Heart Failure (2015)

Exercise capacity is lowered in patients with heart failure, which limits their daily activities and also reduces their quality of life. Furthermore, lowered exercise capacity has been well demonstrated to be closely related to the severity and prognosis of heart failure. Skeletal muscle abnormalities including abnormal energy metabolism, transition of myofibers from type I to type II, mitochondrial dysfunction, reduction in muscular strength, and muscle atrophy have been shown to play a central role in lowered exercise capacity. The skeletal muscle abnormalities can be classified into the following main types: 1) low endurance due to mitochondrial dysfunction; and 2) low muscle mass and muscle strength due to imbalance of protein synthesis and degradation. The molecular mechanisms of these skeletal muscle abnormalities have been studied mainly using animal models. The current review including our recent study will focus upon the skeletal muscle abnormalities in heart failure.
Some Factors Limiting Nitrate Reduction in Developing Ovules of Cotton<sup>1</sup> (1975)

Ovules of developing cotton ( Gossypium hirsutum L.) bolls had significant nitrate reductase activity, although considerably less than in leaves. The capability of the ovules to reduce nitrate (total nitrate reductase activity) increased during development, whereas the absolute rate of nitrate assimilation in situ reached a maximum at about 16 days after anthesis and then declined. Nitrate was present only in extremely small quantities in ovules, severely limiting their rate of nitrate reduction in situ . Transpiration from bolls was extremely slow, suggesting that ovules lack a mechanism for rapid replenishment of consumed nitrate. Estimated rates of ovular nitrate reduction could account for < 5% of the accumulation of reduced nitrogen.
Performances in Harsh Environments of Water Shutoff and Conformance Control Microgels (2009)

Microgels are polymeric chemicals specifically designed for enhanced water shutoff and conformance/<br>profile control applications. Microgels are micron-size particles which are preformed, stable, fully water<br>soluble and size-controlled with a narrow distribution. Being non toxic, according to the OSPAR<br>environmental tests, and available under powder form, they are also particularly well suited for offshore<br>operations. Their long-term stability was checked at temperatures up to 165°C (329°F). In porous media,<br>microgels allow a controlled permeability reduction to water through a monolayer adsorption. When<br>injected in a heterogeneous reservoir, unlike conventional polymer-based systems, microgels invade<br>significantly less the low permeability layers than the high permeability ones, thanks to their low viscosity<br>in solution as well as to steric effects.
Visualization of Mixing and Combustion in TNT Explosions (2001)

Numerical simulations are used to visualize the mixing and combustion induced by explosions of spherical and cylindrical TNT charges. Evolution of the exothermic energy is controlled by mixing (vorticity), which is strongly influenced by wave reflections from confining walls.
Scouts, promoters, and connectors (2007)

Recommender systems aggregate individual user ratings into predictions of products or services that might interest visitors. The quality of this aggregation process crucially affects the user experience and hence the effectiveness of recommenders in e-commerce. We present a characterization of nearest-neighbor collaborative filtering that allows us to disaggregate global recommender performance measures into contributions made by each individual rating. In particular, we formulate three roles--- scouts , promoters , and connectors ---that capture how users receive recommendations, how items get recommended, and how ratings of these two types are themselves connected, respectively. These roles find direct uses in improving recommendations for users, in better targeting of items and, most importantly, in helping monitor the health of the system as a whole. For instance, they can be used to track the evolution of neighborhoods, to identify rating subspaces that do not contribute (or contribute negatively) to system performance, to enumerate users who are in danger of leaving, and to assess the susceptibility of the system to attacks such as shilling. We argue that the three rating roles presented here provide broad primitives to manage a recommender system and its community.
Concurrency and Communication in Transaction Logic. (1996)

In previous work, we developed Transaction Logic (or T R), which deals with state changes in deductive databases. T R provides a logical framework in which elementary database updates and queries can be combined into complex database transactions. T R accounts not only for the updates themselves, but also for important related problems, such as the order of update operations, non-determinism, and transaction failure and rollback. In the present paper, we propose Concurrent Transaction Logic (or CT R), which extends Transaction Logic with connectives for modeling the concurrent execution of complex processes. Concurrent processes in CT R execute in an interleaved fashion and can communicate and synchronize themselves. Like classical logic, CT R has a &quot;Horn&quot; fragment that has both a procedural and a declarative semantics, in which users can program and execute database transactions. CT R is thus a deductive database language that integrates concurrency, communication, and updates. All t...
Isolamento e caracterização de estirpes de Bacillus thuringiensis endofíticas de algodão. (2003)

Made available in DSpace on 2011-04-09T13:25:28Z (GMT). No. of bitstreams: 1\ntales2003.pdf: 501184 bytes, checksum: 467a18ce0406469f0bd2ac103f0f3321 (MD5)\n Previous issue date: 2007-12-07
Feast in Time of Plague: Capabilities and Firm Performance in a Context of Sector Decline (2012)

We used various streams of managerial and economic literature with the aim to better understand the determinants of firm performance under the conditions of a persistent decline in the munificence of the competitive environment. We investigated the roles of both dynamic and operational capabilities of the firm, and the role of sectoral barriers, on the performance of the firm. Our analysis is based on a study including some 12000 manufacturing enterprises in Quebec, Canada. We developed some new measures of capabilities, barriers and performance. Our hypotheses about a different role of dynamic or operational capabilities in a declining sector are partially confirmed. The results may contribute to a better understanding of the relevance and limits of theories explaining competitive advantage and firm performance in declining environments
ChemInform Abstract: CONDENSATION OF SODIUM ETHYL CYANOACETATE WITH SALTS OF CYCLIC IMINO ETHERS. DIRECT SYNTHESIS OF 1,4‐OXAZEPIN‐7‐ONE DERIVATIVES (1984)

Abstract Während der Iminoether (I) keine Kondensationsreaktion eingeht, entstehen aus den Iminoethern (IIa) und (IIb) und dem Na‐Salz des Acetats (III) die Titelverbindungen (IVa) und (IVb).
ChemInform Abstract: Novel Use of a Selenoalkyne Within Untraditionally Mild Doetz Benzannulation Processes; Total Synthesis of a Calceolaria andina L. Natural Hydroxylated Naphthoquinone. (2002)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Synovial giant cells in rheumatoid arthritis (1967)

ORIGINAL ARTICLEINTERNATIONAL ABSTRACTS OF PLASTIC AND RECONSTRUCTIVE SURGERY: MISCELLANEOUS: PDF Only
Melhoramento genético de populações de Stylosanthes guianensis (1983)

Este trabalho foi desenvolvido visando a obtencao de informacoes a respeito do adequado numero de populacoes, numero de repeticoes e numero de plantas por parcela, informacoes essas a serem adotadas em programas de melhoramento que envolvam experimentos com a especie Stylosan thes guianensis (AubI.) Sw. Visou-se, tambem, a obtencao das correlacoes geneticas e fenotipicas existentes entre os caracteres diâmetro medio, area basal, habito de crescimento, quantidade de folhas, peso da materia verde e peso da materia seca. Em geral, observou-se que medias mais precisas foram obtidas em experimentos de maior tamanho. A precisao experimental foi influenciada principalmente pelo numero de populacoes e pelo numero de repeticoes; relativamente inferior foi a influencia do numero de plantas por parcela. Os resultados obtidos para as correlacoes fenotipicas indicaram que todas as correlacoes ao nivel de plantas dentro de parcelas, para os caracteres diâmetro medio, area basal, peso verde e peso seco, foram significativas e positivas. As correlacoes geneticas foram significativas e positivas para dez de um total de quinze combinacoes entre os seis caracteres estudados, tomados dois a dois. Conclui-se que a producao de materia seca podera ser indiretamente aumentada, por selecao para maior diâmetro, area basal e peso verde.
Sound localization of bone-conducted signals generated by two transducers attached to teeth (2004)

The efficiency of the sound transmission of a bone-conduction hearing aid is improved when tooth is excited by a transducer because the vibration generated by the transducer is not attenuated by the damping of skin and directly transmits to the skull. In addition, if sound localization is established by a binaural bone-conduction hearing aid, speech articulation is also improved. In this study, the sound localization was tested by applying sinusoidal signals to two transducers attached to right and left teeth. The pattern of the sound localization according to the phase difference between the two signals depended on individuals, and this sound localization seemed to be caused by the change of the amplitude of the vibration transmitted to the cochleae from the transducers.
OPERATION OF A TWO-STAGE MEMBRANE SYSTEM FOR THE TREATMENT OF WASHWATER IN SPACECRAFT (1990)

Abstract A two-stage membrane-based system was developed and designed to recycle washwaters generated aboard spacrcraft. The first stage is a fouling-resistant tube-side-feed hollow-fiber ultrafiltration module; the second stage is a spiral-wound reverse-osmosis module. Throughout a 10-week test at the National Aeronautics and Space Administration's Johnson Space Center, the system consistently produced high-quality permeate, processing actual washwater to 95% recovery.
A WASSERMANN MICRO-TECHNIQUE NEEDING ONLY OCCASIONAL TITRATION OF THE COMPLEMENT (1923)

Journal Article A WASSERMANN MICRO‐TECHNIQUE NEEDING ONLY OCCASIONAL TITRATION OF THE COMPLEMENT Get access ROBERT DONALD, B.Sc., D.P.H. ROBERT DONALD, B.Sc., D.P.H. Pathologist to the East London Hospital for Children and Dispensary for Women Search for other works by this author on: Oxford Academic Google Scholar British Journal of Dermatology and Syphilis, Volume 35, Issue 2, 1 February 1923, Pages 50–64, https://doi.org/10.1111/j.1365-2133.1923.tb09085.x Published: 01 February 1923
Two new additions to the Juncaceae of India (2007)

Juncus harae Miyam. & Ohba and J. sherei Miyam. & Ohba hitherto unrecorded from India, are reported from Sikkim Himalaya as new record for India. Critical notes are provided for distinguishing J. harae Miyam. & Ohba from J. duthiei (C.B. Clarke) Noltie.
Dissociation dynamics in hyperthermal energy molecular ion/surface collisions (1997)

The processes of electron transfer and dissociative scattering are explored for collisions of state-selected hyperthermal energy (5–80 eV) NO+(X1Σ+, ν) on GaAs(110) and Ag(111). In conjunction with classical and quantum mechanical calculations, the experimental data reveal the sequence of neutralization, dissociation, and electron attachment steps responsible for the emergence of O−(2P) ions. This mechanism is compared to those which govern the formation of negative ion fragments in the scattering of state-selected OCS+(X2II32) on Ag(111). In the scattering of OCS+, impulsive mechanical dissociation forms O−(2P) ions; dissociative neutralization leads to S−(2P); and atom elimination yields SO−(2II).
Mitigation of Chromium Poisoning Effects in SOFCs By Cathode Compositional Modifications and Interconnect Coatings (2017)

Solid oxide fuel cells (SOFCs) address critical needs in the energy infrastructure due to their high efficiency, low emisssions and noiseless operation. The intermediate temperature SOFCs(IT-SOFCs) enable the use of metallic interconnect instead of traditional ceramic interconnect. However, chromium poisoning due to transport from metallic interconnect and BOP components is deleterious to cell performance. To prevent the chromium poisoning, either a new cathode material with a high tolerance of chromium poisoning needs to be deployed, or a protective coating with a high electrical conductivity needs to applied to the interconnect. In this study, electrolyte-supported baseline half-cell with 8mol% YSZ as the electrolyte and (La 0.8 Sr 0.2 ) 0.95 MnO 3-δ as the working and counter electrode was fabricated. Its electrochemical characteristics were tested in dry air and 50 mA/cm 2 cathodic current in the present of bare chromia-forming interconnect, and an interconnect with a protective coating. Further, to investigate the effect of alternate electrode compositions, new electrodes, e.g. Cr- doped LSM, were employed as the working electrode instead of LSM in the baseline cell, and tested under same conditions.
Gas Analysis of Ammonia Plasmas Using a Quartz Sensor (2009)

Quartz sensor measurements were performed on ammonia plasmas to analyze their gas phases. From the analysis using a quadrupole mass spectrometer, it was found that the main products formed in the ammonia plasmas in this study were nitrogen and hydrogen molecules in the ratio of 1:3. The quartz sensor can be used to measure the partial pressure of each gas in binary gas mixtures in ammonia plasmas if they consist of the binary gases of ammonia and a mixture of nitrogen and hydrogen in the ratio of 1:3. However, the results for the ammonia plasmas obtained by the Q-sensor measurement do not agree with those obtained from mass spectroscopy. This indicates that the results of quartz sensor measurements may include information on highly reactive chemical species in addition to that on nitrogen and hydrogen molecules.