gebhart/patrepeval huggingface dataset:
Twisted intramolecular charge-transfer phenomenon as a fluorescence probe of microenvironment, effect of polymer concentration on local viscosity and microscopic polarity around a polymer chain of poly(methyl methacrylate) (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTwisted intramolecular charge-transfer phenomenon as a fluorescence probe of microenvironment, effect of polymer concentration on local viscosity and microscopic polarity around a polymer chain of poly(methyl methacrylate)Ryuichi Hayashi, Shigeo Tazuke, and Curtis W. FrankCite this: Macromolecules 1987, 20, 5, 983–988Publication Date (Print):May 1, 1987Publication History Published online1 May 2002Published inissue 1 May 1987https://pubs.acs.org/doi/10.1021/ma00171a017https://doi.org/10.1021/ma00171a017research-articleACS PublicationsRequest reuse permissionsArticle Views388Altmetric-Citations51LEARN 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
A Newly Developed Robot Suit Hybrid Assistive Limb Facilitated Walking Rehabilitation after Spinal Surgery forThoracic Ossification of the Posterior Longitudinal Ligament: A Case Report (2013)

Most patients with thoracic ossification of the posterior longitudinal ligament (OPLL) exhibit delayed recovery of gait dysfunction after spinal injury. The hybrid assistive limb (HAL) is a new robot suit controlling knee and hip joint motion by detecting very weak bioelectric signals on the surface of the skin. This study is to report the feasibility and benefits of patient-assistive HAL walking rehabilitation for facilitating locomotor function after spinal surgery. The patient was a 60-year-old woman with thoracic OPLL, and her motor and sensory paralyses did not improve after spinal surgery, indicating severe impairment in the paretic legs. The subject underwent 6 HAL sessions per week for 8 weeks, consisting of a standing and sitting exercise and walking on the ground with HAL. Clinical outcomes were evaluated before and after HAL training and 1 year after surgery. The subject improved considerably as a result of HAL training. Subsequently, her walking ability recovered rapidly, and she was able to walk unaided six months after surgery. This case study suggests that HAL training is a feasible and effective option to facilitating locomotor function and the early HAL training with physiotherapy may enhance motor recovery of patients with residual paralysis after surgery.
Micro-optic and microelectronic integrated packaging of vertical-cavity lasers (1993)

The applications for optoelectronic integrated circuits demand high performance optoelectronic devices or smart pixels. The stringent requirements on these smart pixels require that packaging technology be developed concurrently to the development of the optoelectronic components. We discuss the packaging requirements of smart pixels based on vertical-cavity microlasers. We present a novel microlens/macrolens combination which allows high power densities to be focused to a diffraction-limited spot using present VCSEL technology. Finally, we discuss the applications for microlaser-based spatial light source arrays.
Analysis of an Axisymmetric Bluff Body Wake Using Fourier Transform and POD (2008)

The data from u nforced and open loop forced simulations of the wake behind an axisymmetric bluff body at Re D=1,500 is analyzed to explore the effect of forcing. In the unforced wake, because of the axial symmetry of the body , structures do no t maintain a constant azimuthal phase over time , which leads to inaccurate predictions of the flow field when applying POD . Forcing inside the “lock -in” region in amplitude -frequency space with a fixed azimuthal phase is therefore introduced to study the w ake in detail. The resulting flow field is analyzed using three methods , namely an azimuthal Fourier transform, a moment of inertia calculation, and a velocity vector histogram, to determine the a zimuthal phase of the wake structures . The overall goal is t o minimize the necessary data volume to analyze the flow for eventual implementation in real time feedback flow control experiments. It is shown that the methods used to determine the azimuthal phase all yield a measure of the phase angle of the symmetry p lane in the wake .
Predictors of Ominous Outcome in Infants who Undergo Cardiac Surgery and Cardiopulmonary By-Pass: S100B Protein (2015)

S100B protein has been recently proposed as a consolidated marker of brain damage and death in adult, children and newborn patients. The present study evaluates whether the longitudinal measurement of S100B at different perioperative time-points may be a useful tool to identify the occurrence of perioperative early death in congenital heart disease (CHD) newborns. We conducted a case-control study in 88 CHD infants, without pre-existing neurological disorders or other co-morbidities, of whom 22 were complicated by perioperative death in the first week from surgery. Control group was composed by 66 uncomplicated CHD infants matched for age at surgical procedure. Blood samples were drawn at five predetermined time-points before during and after surgery. In all CHD children, S100B values showed a pattern characterized by a significant increase in protein's concentration from hospital admission up to 24-h after procedure reaching their maximum peak (P<0.01) during cardiopulmonary by-pass and at the end of the surgical procedure. Moreover, S100B concentrations in CHD death group were significantly higher (P<0.01) than controls at all monitoring time-points. The ROC curve analysis showed that S100B measured before surgical procedure was the best predictor of perioperative death, among a series of clinical and laboratory parameters, reaching at a cut-off of 0.1 μg/L a sensitivity of 100% and a specificity of 63.7%. The present data suggest that in CHD infants biochemical monitoring in the perioperative period is becoming possible and S100B can be include among a series of parameters for adverse outcome prediction.
Development of Ion Beam Assisted Deposition System Equipped with a Low Energy Compact Microwave Ion Source (2003)

New ion beam assisted deposition (IBAD) system equipped with a Low voltage extraction microwave ion source (MWIS) was developed for the purpose of orientation control of thin films. This system has three ports for MWIS to provide ion beam with different incident angles of 45°, 60°, and 75°. Fundamental properties of the ion source was examined, and it was found that sufficient ion current for deposition was obtained at the substrate holder. Tantalum carbide thin films were deposited and relationship between deposition parameter and property of the thin films was measured.
Front Matter: Volume 7399 (2009)

This PDF file contains the front matter associated with SPIE Proceedings Volume 7399, including the Title Page, Copyright information, Table of Contents, Introduction (if any), and the Conference Committee listing.
Cooperative Precoding and Beamforming in Co-Working WLANs (2008)

The interference among multiple access points (APs) that co-exist in the same location, limits the capacity of co-working wireless local area networks (WLANs). In this paper, we propose a practical cooperative transmission scheme to mitigate the interference in co-working WLANs. In particular, we combine Tomlinson Harashima precoding (THP), joint transmit-receive beamforming based on SINR (signal-to-interference-plus-noise-ratio) maximization, and an adaptive precoding order to eliminate co-working interference and achieve bit error rate (BER) fairness among different users. We consider the design of the system when partial channel state information (CSI) (where each user only knows its own CSI) and full CSI (where each user knows CSI of all users) are available at the receiver respectively. We prove analytically and by simulation that the performance of our proposed scheme will not be degraded under partial CSI. The simulation results show that the proposed scheme considerably outperforms both the existing non-cooperative and cooperative transmission schemes and is only 2 dB away from an interference-free channel under the same configuration.
Aberrations in shift-invariant linear optical imaging systems using partially coherent fields (2014)

Here the role and influence of aberrations in optical imaging systems employing partially coherent complex scalar fields is studied. Imaging systems require aberrations to yield contrast in the output image. For linear shift-invariant optical systems, we develop an expression for the output cross-spectral density under the space-frequency formulation of statistically stationary partially coherentfields. We also develop expressions for the output cross{spectral density and associated spectral density for weak-phase, weak-phase-amplitude, and single-material objects in one transverse spatial dimension.
Extraction of americium (III) by sorbents on the basis of macrocyclic polyethers from multicomponent solutions (2010)

The sorption of americium (III) by sorbents on the basis of dibenzo-, dicyclohexano-18-crown-6, and their diisooktil- and ditert-butil- substitutors from solutions of HNO3 of various concentrations and from solutions of HNO3 contained trichloracetic acid was studied in the present investigation, including the kinetics of sorption. It was found, that the sorbents containing crown-ethers dibenzo-, and dicyclohexano-18-crown-6 without alkyl substitutes have the maximal sorption factors in solutions for 2M nitric acid and also in solutions closed to neutral. It was shown, that sorption of americium (III) by sorbents on the basis of dicyclohexano-18-crown-6 and their alkyl derivatives in the presence trichloracetic acid is higher, than by dibenzo-18-crown-6 and their ones, that, however, depends on a ratio of components in solution. Sorption of americium (III) by sorbents on the basis of dibenzo-, dicyclohexano-18-crown-6 from multicomponent solutions was investigated. It was shown, that using of macrocyclic polyethers for extraction of americium (III) from acid solutions is prospective technique.
LPE growth of 1.3 μm InGaAsP CW lasers on (110) InP substrates (1981)

Room temperature CW operation and threshold current densities below 1000 A/cm2 have been achieved near 1.3 μm wavelength with InP/InGaAsP/InP DH lasers grown by liquid phase epitaxy on (110)-oriented InP substrates.
Infrared frequencies and intensities for astrophysically important polycyclic aromatic hydrocarbon cations (1993)

Polycyclic aromatic hydrocarbons (PAHs) have been implicated as the carriers of the 'unidentified infrared' (UIR) emission bands observed from the interstellar medium. It has long been thought that these molecules, if present, probably exist as cations. In this paper we present infrared spectra of the cations of five moderate-sized PAHs. The PAH cations have been produced by low-energy electron impact and then trapped and stabilized in argon matrices at 12 K. To date, results have been obtained on naphthalene, anthracene, pyrene, perylene, and coronene. A common feature of the infrared spectra of all these cations is the very different intensity pattern of the ions compared to the neutral parents. Visible and (partial) infrared spectra of the coronene cation are also presented. It is shown that the out-of-plane CH bending mode shifts to a position very close to the UIR band at 11.3 microns. The astrophysical impact of these observations is discussed.
Karyotype polymorphism and conserved characters in the Leishmania (Viannia) braziliensis complex explored with chromosome-derived probes. (1993)

Molecular karyotype of 45 reference populations of Neotropical leishmanias was analyzed with ethidium bromide staining and with 6 chromosome-derived probes selected from a genomic library of Leishmania (Viannia) braziliensis. Size-conserved patterns were identified and found to be specific to subgenus Viannia and to its constitutive species. An important issue for epidemiology and clinical investigations was the discrimination between L. (V.) peruviana and L. (V.) braziliensis, 2 species found very similar by other genetic techniques, but responsible for totally different clinical patterns. The suggested existence of genetically distinct demes, or karyodemes, within the group-species might also show to be of importance, as these populations might differ in virulence, host-specificity and clinical manifestations.
Spatial response of symmetric and asymmetric planar SQUID gradiometers (1997)

First and second order symmetric gradiometers, and first order singly and doubly asymmetric gradiometers have been designed and fabricated using a standard niobium thin-film process. Here we present the results of our simulations of the effect of varying the gradiometer geometry, order and symmetry. In particular, we are interested in the spatial response of the gradiometer. We compare the simulations with experimental data.
Successful mobilization and engraftment of PBSCs derived from donor cord blood cells after a previous allogeneic RIC single unrelated cord blood transplantation (2011)

International audience
Calibration procedure of Hukseflux SR25 to Establish the Diffuse Reference for the Outdoor Broadband Radiometer Calibration (2017)

Page Not Found - If you're seeing this page, it's because the URL you requested cannot be located. It might not exist or maybe you mistyped it into your browser. But, if you think it's our mistake, please let us know. Otherwise, you have a few options: try using our navigation bar at the top of this page, visit our home page, or browse our products below. - Homepage Basic Content,
Loss of mTOR signaling affects cone function, cone structure and expression of cone specific proteins without affecting cone survival (2015)

Cones are the primary photoreceptor (PR) cells responsible for vision in humans. They are metabolically highly active requiring phosphoinositide 3-kinase (PI3K) activity for long-term survival. One of the downstream targets of PI3K is the kinase mammalian target of rapamycin (mTOR), which is a key regulator of cell metabolism and growth, integrating nutrient availability and growth factor signals. Both PI3K and mTOR are part of the insulin/mTOR signaling pathway, however if mTOR is required for long-term PR survival remains unknown. This is of particular interest since deregulation of this pathway in diabetes results in reduced PR function before the onset of any clinical signs of diabetic retinopathy. mTOR is found in two distinct complexes (mTORC1 & mTORC2) that are characterized by their unique accessory proteins RAPTOR and RICTOR respectively. mTORC1 regulates mainly cell metabolism in response to nutrient availability and growth factor signals, while mTORC2 regulates pro-survival mechanisms in response to growth factors. Here we analyze the effect on cones of loss of mTORC1, mTORC2 and simultaneous loss of mTORC1 & mTORC2. Interestingly, neither loss of mTORC1 nor mTORC2 affects cone function or survival at one year of age. However, outer and inner segment morphology is affected upon loss of either complex. In contrast, concurrent loss of mTORC1 and mTORC2 leads to a reduction in cone function without affecting cone viability. The data indicates that PI3K mediated pro-survival signals diverge upstream of both mTOR complexes in cones, suggesting that they are independent of mTOR activity. Furthermore, the data may help explain why PR function is reduced in diabetes, which can lead to deregulation of both mTOR complexes simultaneously. Finally, although mTOR is a key regulator of cell metabolism, and PRs are metabolically highly active, the data suggests that the role of mTOR in regulating the metabolic transcriptome in healthy cones is minimal.
ChemInform Abstract: 4‐AZAINDAN‐1,3‐DION‐DERIVATE 2. MITT. DIE SYNTHESE VON TETRAHYDRO‐4‐BENZ(F)INDAN‐1,3,8‐TRIONEN (1975)

Abstract Beim Erhitzen der Äthoxalylcyclopentantrione (I) mit dem Aminocyclohexenon ′ (II) in siedendem Äthanol bilden sich die Tetrahydro‐aza‐benzindantrione (III), deren Alkylierung, Bromierung, Reduktion und Hydrolyse untersucht werden.
Seismic event detection and source location using single-station (three-component) data (1987)

Abstract The seismic event detection and source location scheme presented in this paper uses single-station seismic data to analyze seismic events. To detect events, “the detection scheme” combines the signals on the horizontal components in a manner analogous to beam steering. Once an event is detected, “the location scheme” estimates the location of the source with respect to the receiver by estimating the polarization direction of the Pn phase. The range estimate is then obtained from the relative timing of different phases.
Two phase heat transfer in tubes, rod bundles and blockages (1982)

Available two-component two phase heat transfer data in tubes have been reviewed. Based on momentum transfer considerations and the important influence of turbulence in the continuous phase, two phase heat transfer data in tubes for liquid Reynolds number varying from 600-190,000 and void fraction varying from 0.01-0.35 have been correlated. New two phase data obtained on rod bundles are also correlated by the above expression when the empirical constant is increased to 3.25. Further, the correlation is modified and extended to account for the enhancement in heat transfer downstream of blockages. Although the correlation is developed for bubbly flows, it should be applicable to entrained flows in which droplets do not wet the heated surface. Data for heat transfer in the vicinity of blockages was obtained on a four rod bundle with rods arranged in a square grid. Sleeve type blockages mounted on all the rods had a length to diameter ratio of 2.5 and blocked about 60% of the flow area of the inner channel while providing an effectively infinite flow bypass. The local heat transfer coefficients were determined for single and two phase flows in which water and nitrogen gas flow rates were varied parametrically.
A Mathematical Modelling To Predict Rhamnolipid Production By Pseudomonas Aeruginosa Under Nitrogen Limiting Fed-Batch Fermentation (2014)

In this study, a mathematical model was proposed and<br> the accuracy of this model was assessed to predict the growth of<br> Pseudomonas aeruginosa and rhamnolipid production under nitrogen<br> limiting (sodium nitrate) fed-batch fermentation. All of the<br> parameters used in this model were achieved individually without<br> using any data from the literature.<br> The overall growth kinetic of the strain was evaluated using a<br> dual-parallel substrate Monod equation which was described by<br> several batch experimental data. Fed-batch data under different<br> glycerol (as the sole carbon source, C/N=10) concentrations and feed<br> flow rates were used to describe the proposed fed-batch model and<br> other parameters. In order to verify the accuracy of the proposed<br> model several verification experiments were performed in a vast<br> range of initial glycerol concentrations. While the results showed an<br> acceptable prediction for rhamnolipid production (less than 10%<br> error), in case of biomass prediction the errors were less than 23%. It<br> was also found that the rhamnolipid production by P. aeruginosa was<br> more sensitive at low glycerol concentrations.<br> Based on the findings of this work, it was concluded that the<br> proposed model could effectively be employed for rhamnolipid<br> production by this strain under fed-batch fermentation on up to 80 g l-<br> 1 glycerol.
Ontologies in the Health Field (2011)

Health data and knowledge had been structured through medical classifications and taxonomies long before ontologies had acquired their pivot status of the Semantic Web. Although there is no consensus on a common definition of an ontology, it is necessary to understand their main features to be able to use them in a pertinent and efficient manner for data mining purposes. This chapter introduces the basic notions about ontologies, presents a survey of their use in medicine and explores some related issues: knowledge bases, terminology, and information retrieval. It also addresses the issues of ontology design, ontology representation, and the possible interaction between data mining and ontologies.Request access from your librarian to read this chapter's full text.
Diagnosis and Treatment of Urinary Tract Complication in Crohn’s Disease: An Experience over 15 Years (2002)

Based on these findings, urological complications are not rare in patients with Crohn's disease, and necessitate a high degree of diligence and periodic urological evaluation.
Adaptive bi-predictive video coding using temporal extrapolation (2004)

In this paper, we propose a new multi-frame bi-predictive motion compensation method using a temporal linear extrapolation technique. Significant coding gain is obtained by the proposed method, especially for fading or dissolving scenes, which are among the most difficult scenes to compress by conventional coding standards. Moreover, stable improved coding efficiency is obtained, using block by block adaptation combined with multiframe averaging prediction. The number of reference frames for the proposed temporal prediction method is limited to two successive frames which are already coded. And therefore only addition, subtraction and shift operation are needed to generate the prediction signal of both extrapolation and averaging. As for encoding, automatic adaptation is performed without scene characteristics detection, such as fade-in, fade-out, and dissolve. Therefore, additional computational power for both encoder and decoder to use the proposed method is very small.
Getting Fit for the Future: Optimizing Energy Usage in Existing Buildings by Adding Non-Invasive Sensor Networks (2018)

Optimizing energy usage is becoming an economic necessity for existing buildings. Non-invasive sensors and sensor networks are key technologies for efficiently achieving this goal, since it is of utmost importance that existing hydraulic systems are not changed and the engineering effort for installation remains minimal. This paper presents a data-driven approach that should allow low-cost installation of sensors at arbitrary points of the building and then retrieve the structure of the hydraulic system from the recorded sensor values. The architecture as well as first preliminary results from field test buildings are presented.
Convenient Syntheses for Selectively Isotopically Labelled Acrylonitriles (1987)

Abstract A convenient labscale synthesis of selectively, isotopically labelled acrylonitriles (1) from readily available and relatively inexpensive enriched starting materials is described.