gebhart/patrepeval huggingface dataset:
Research in garnet crystal (GSGG) development. Final report, 1 May 1984-31 December 1984 (1985)

This program describes the crystal growth of neodymium and chromium doped simultaneously into the host crystal of gadolinium scandium gallium garnet (Nd/sup 3 +/, Cr/sup 3/+:Gd/sub 3/(Sc,Ga)/sub 2/ Ga/sub 3/O/sub 12/ or Nd,Cr:GSGG). Ten experimental boules were grown by the Czochralski method at a diameter of 1.0-1.2 inch. Special attention was given to congruently melting compositions, the Nd and Cr content, growth rate, atmosphere of growth, control of the solid liquid interface, and boule orientation. For each of our crystals a (0.25 x 3.00) inch cylindrical laser rod was extracted, fabricated, tested passively, and delivered to the Lawrence Livermore National Laboratory for active testing. At the same time, boule samples were examined for optical absorption, loss at 1.06..mu..m, refractive index birefringence, and other physical properties. Results have demonstrated that optical quality can approach that of Nd:YAG in rod form. The increased efficiency of Nd,Cr:GSGG was confirmed to be about 2 times that of Nd:YAG. We also show that 2 inch diameter crystal boules can be grown successfully. It appears that larger boules are feasible for slab laser experiments.
Partitioning a Call Graph (2005)

In recent years, the capabilities of information technology have increased tremendously. At the same time, large software systems in today’s organizations
Synthesis of pentaarabinofuranosyl structure motif A of Mycobacterium tuberculosis (1998)

The first synthesis of motif A, the branched chain arabinofuranosyl pentasaccharide [t-β-Araf-(1 → 2)-α-D-Araf]2-3,5-α-D-Araf-(1 → 5) which constitutes the major humoral immunological epitope in the arabinogalactan cell wall of Mycobacterium tuberculosis is described.
Ca v 3.2 T‐type Ca 2+ Channels in H 2 S‐Mediated Hypoxic Response of the Carotid Body (2015)

Voltage-gated Ca2+ channels (VGCC) are important for carotid body O2 sensing. We recently reported that Cav 3.2 is a major T-Type VGCC isoform expressed in the carotid body, and it contributes to hypoxia-evoked Ca2+ influx in glomus cells. Recent studies showed that cystathionine-γ-lyase (CSE)-derived hydrogen sulfide (H2S) is a critical mediator of carotid body response to hypoxia. We hypothesized that Cav 3.2-dependent carotid body response to hypoxia requires H2S. We tested this possibility in wild type (WT) and Cav 3.2 knockout (Cacna1h-/-) mice. In WT mice, NaHS, a H2S donor, like hypoxia, increased [Ca2+]i in glomus cells and carotid body sensory nerve activity, and these responses were markedly reduced in Cacna1h null glomus cells and carotid bodies. To assess the selective role of CSE-derived H2S, studies were performed on WT and CSE-/- mice. Hypoxia increased [Ca2+]i in glomus cells and this response was attenuated by TTA-A2, a selective blocker of T-type VGCC in WT but not in CSE null glomus cells. To determine whether genetic deletion of CSE impaired T-type VGCC function, CSE null glomus cells were challenged with NaHS. In response to NaHS, [Ca2+]i increased and this effect was inhibited by TTA-A2 in a reversible manner. Hypoxia-evoked carotid body sensory nerve excitation was reduced by TTA-A2 in WT, but not in CSE null carotid bodies. These results demonstrate that Cav 3.2 T-type VGCC contribute to H2S mediated carotid body response to hypoxia. Supported by NIH HL-90554.
COMPUTER AIDED DESIGN OF HORN RADIATORS FOR SATELLITE COMMUNICATION BY LEAST SQUARES OPTIMIZATION (2000)

Computer aided design optimization of corrugated horns became a powerful tool to reduce development costs on the one hand and to improve performance of space antennas on the other. In this paper the physical model is outlined, based on Maxwell's equations, and it is shown how a complete numerical simulation of a circular corrugated horn can be achieved, assuming that the interior geometry of the horn is known. In order to compute the electromagnetic properties of a horn, the so-called scattering matrix is assembled. This matrix is needed to relate mode amplitudes of reflected and transmitted waves in horn sections with different diameters. Envelope functions, determined by a few geometric design parameters, are used to describe the inner geometry of a horn. These parameters are applied to formulate a least squares optimization problem. As a starting point, an amplitude spectrum in the aperture has to be determined which radiates a given far field. The differences between those amplitudes and the amplitudes predicted by the model are to become as small as possible by adapting the design variables. Moreover, the return loss is to be minimized. The resulting least squares optimization problem can be solved by a standard sequential quadratic programming (SQP) code after a suitable transformation into a nonlinear programming problem, by which typical features of Gauss-Newton methods are retained. Some numerical results are included to show the successful application of the introduced advance to design a circular corrugated horn which radiates a given far field.
Candida dubliniensis : Characteristics and Identification (1998)

Candida dubliniensis is a recently described species of chlamydospore- and germ tube-positive yeast which has been recovered primarily from the oral cavities of human immunodeficiency virus (HIV)-infected individuals and AIDS patients. The organism has been recovered from patients in widespread
Industrial characterization of nano-scale roughness on polished surfaces (2015)

We report a correlation between the scattering value “Aq” and the ISO standardized roughness parameter Rq. The Aq value is a measure for surface smoothness, and can easily be determined from an optical scattering measurement. The correlation equation extrapolates the Aq value from a narrow measurement range of ±16° from specular to a broader range of ±80°, corresponding to spatial surface wavelengths of 0.8 μm to 25 μm, and converts the Aq value to the Rq value for the surface. Furthermore, we present an investigation of the changes in scattering intensities, when a surface is covered with a thin liquid film. It is shown that the changes in the angular scattering intensities can be compensated for the liquid film, using empirically determined relations. This allows a restoration of the “true” scattering intensities which would be measured from a corresponding clean surface. The compensated scattering intensities provide Aq values within 5.7 % ± 6.1 % compared to the measurements on clean surfaces.
Measuring local flow rates in process units (1983)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMeasuring local flow rates in process unitsUzi Mann and Michael RubinovitchCite this: Ind. Eng. Chem. Process Des. Dev. 1983, 22, 3, 545–547Publication Date (Print):July 1, 1983Publication History Published online1 May 2002Published inissue 1 July 1983https://pubs.acs.org/doi/10.1021/i200022a033https://doi.org/10.1021/i200022a033research-articleACS PublicationsRequest reuse permissionsArticle Views49Altmetric-Citations5LEARN 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
Epithelial Mediators (1987)

The bronchial epithelium has a number of mechanical functions including mucociliary clearance and protection against noxious agents. However, there is increasing evidence that it is a metabolically active tissue that may modulate the function of the underlying smooth muscle by metabolism and regulation of mediators and the production of relaxant, constrictor, or chemotactic factors. It is therefore possible that the epithelial abnormalities observed in asthmatics may lead, via several different mechanisms, to increased bronchial hyperresponsiveness (figure 2), which is a fundamental feature of asthma. However, it may not be necessary to invoke structural damage to explain derangement of epithelial function. It is possible that functional biochemical abnormalities may be present in epithelial cells, thereby producing bronchial hyperresponsiveness in the absence of histologic abnormalities. Further studies with bronchial epithelium, similar to those with vascular endothelium, are needed to clarify its role in the pathogenesis of asthma.
Glass transition temperatures of some linear polymers containing phenyl side groups (1971)

Abstract The glass transition temperatures of a number of poly(vinyl phenyl ketones), poly‐(vinyl benzoates), and poly(phenyl acrylates) have been measured by a refractometric method. The effects exerted on T g by the nature and position of the ring substituents and by the different groups binding the pendant phenyl rings to the polyvinyl chain are discussed. The importance of knowledge of the side‐group motions in the glassy state for the interpretation of glass temperature data is emphasized.
Uso de modelos não-lineares para o ajuste de curvas de crescimento de cavalos pantaneiros (1999)

Dados de altura da cernelha e idade de 26 cavalos Pantaneiros, obtidos, na maioria, do nascimento até 36 meses, foram ajustados aos modelos de respostas não-lineares de Brody, Richards, Gompertz, Logístico, Weibull e Morgan-Mercer-Flodin. Estes seis modelos matemáticos foram comparados com o uso de uma medida de curvatura média e do erro médio quadrático combinado. O modelo de Weibull foi escolhido. A assíntota desta curva representa a altura esperada na maturidade. Os machos apresentaram um valor maior desta quantidade do que as fêmeas. O índice de maturidade, contudo, é maior para as fêmeas. Observou-se uma indicação de associação negativa entre altura na maturidade e índice de maturidade somente nas fêmeas. Tais resultados indicam que as fêmeas amadurecem mais cedo. Após testes de normalidade e homogeneidade de variância, as diferenças entre sexos foram analisadas com o uso do teste-t. Somente a altura da cernelha ao nascimento apresentou diferença significativa.
Breakdown-speed considerations in InP/InGaAs single- and double-heterostructure bipolar transistors (1993)

The breakdown and speed characteristics of InP/InGaAs single and double HBTs are presented. Temperature-dependent two- and three-terminal measurements suggest that avalanche impact ionization is the dominant breakdown mechanism in InGaAs collector HBTs. Monte Carlo techniques and 1D drift-diffusion modeling are used for speed and breakdown simulation, respectively. Special doping profiles are evaluated for improving the breakdown-speed characteristics of single HBTs (SHBTs) with conventional uniformly doped InGaAs collectors. Double HBTs (DHBTs) outperform all SHBTs in terms of speed-breakdown tradeoffs as long as they use graded base-collector junctions or they operate under sufficiently high collector-emitter voltage conditions. A cutoff frequency of 200 GHz was found to be feasible with graded DHBTs, and breakdown voltages up to 4.6 V were evaluated with a 3000-AA-thick collector. Nongraded DHBTs can be optimized to perform better in terms of speed-breakdown tradeoffs provided that a high collector doping is used.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Crosslinked, electrospun chitosan–poly(ethylene oxide) nanofiber mats (2008)

Abstract Mechanical characterization of nanofiber mats is an underexplored area in biomaterial engineering. In this study, a chitosan–poly(ethylene oxide) copolymer blend was electrospun and crosslinked with glutaraldehyde (GA) for various time periods. The tensile and compressive mechanical integrity of the nanofibers was analyzed with increasing exposure to vapor crosslinking. Solubility, scanning electron microscopy characterization, Fourier transform infrared, uniaxial tensile tests, and nanoindentation analyses were used to identify these trends. The mechanical studies confirmed that the GA vapor crosslinking increased the stiffness and decreased the ductility of the electrospun mats. Increased exposure time to crosslinking led to changes in the mat surface color and resistance to dissolution. Scanning electron microscopy fiber counts verified that exposure to GA vapor crosslinking increased the average fiber diameter. By the use of vapor phase deposition, mechanical properties continued to change throughout the study. The crosslinking exposure time could be chosen to accommodate in vivo mechanical loading. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
FURTHER INVESTIGATIONS ON URINARY OESTROGEN EXCRETION BY THE BOAR (1958)

The presence of oestrogen in the urine of boars has been known for many years (Hauer, 1933, Küst, 1934), but only recently has the chemical nature of the excreted substances been elucidated. In a previous paper (Velle, 1958 b) the isolation of oestrone and oestradiol-17 β from boar's urine was reported. The present paper deals with the optimal conditions for the acid hydrolysis of the oestrogen conjugates in the urine, and also includes results of some quantitative investigations on the urinary oestrogen excretion in this animal. Reagents. The reagents were of the same standard and manufacture as those used in previous investigations (Velle, 1958 a). Material. The urine specimens were collected from adult, healthy, fertile boars belonging to an artificial breeding center. For the investigations on the hydrolytic procedure, a batch of fresh urine was divided into 10 ml. portions which were kept in small polythene bottles at −25°
Mechanically triggered transformations of phononic band gaps in periodic elastomeric structures (2008)

We present a full acoustic band structure calculation for periodic elastomeric solids at different levels of deformation. We demonstrate the ability to use deformation to transform phononic band gaps. Periodic elastomeric structures are subjected to axial compression and are found to undergo a transformation in their patterned structure upon reaching a critical value of applied load. During the initial linear regime of the nominal stress-strain behavior, the band gaps evolve in an affine and marginal manner. Upon reaching the critical load, the pattern transformation is found to strongly affect the in-plane phononic band gaps, resulting in the closure of existing band gaps and in the opening of new ones. The elastomeric nature of the material makes the transformation in both structural pattern and phononic band gap a reversible and repeatable process, creating a phononic band gap switch.
Genome-Wide Analysis Reveals Mucociliary Remodeling of the Nasal Airway Epithelium Induced by Urban PM2.5 (2020)

Air pollution particulate matter <2.5 μm (PM<sub>2.5</sub>) exposure is associated with poor respiratory outcomes. Mechanisms underlying PM<sub>2.5</sub>-induced lung pathobiology are poorly understood but likely involve cellular and molecular changes to the airway epithelium. We extracted and chemically characterized the organic and water-soluble components of air pollution PM<sub>2.5</sub> samples, then determined the whole transcriptome response of human nasal mucociliary airway epithelial cultures to a dose series of PM<sub>2.5</sub> extracts. We found that PM<sub>2.5</sub> organic extract (OE), but not water-soluble extract, elicited a potent, dose-dependent transcriptomic response from the mucociliary epithelium. Exposure to a moderate OE dose modified the expression of 424 genes, including activation of aryl hydrocarbon receptor signaling and an IL-1 inflammatory program. We generated an OE-response gene network defined by eight functional enrichment groups, which exhibited high connectivity through <i>CYP1A1</i>, <i>IL1A</i>, and <i>IL1B</i>. This OE exposure also robustly activated a mucus secretory expression program (>100 genes), which included transcriptional drivers of mucus metaplasia (<i>SPDEF</i> and <i>FOXA3</i>). Exposure to a higher OE dose modified the expression of 1,240 genes and further exacerbated expression responses observed at the moderate dose, including the mucus secretory program. Moreover, the higher OE dose significantly increased the <i>MUC5AC</i>/<i>MUC5B</i> gel-forming mucin expression ratio and strongly downregulated ciliated cell expression programs, including key ciliating cell transcription factors (e.g., <i>FOXJ1</i> and <i>MCIDAS</i>). Chronic OE stimulation induced mucus metaplasia-like remodeling characterized by increases in MUC5AC<sup>+</sup> secretory cells and MUC5AC mucus secretions. This epithelial remodeling may underlie poor respiratory outcomes associated with high PM<sub>2.5</sub> exposure.
Model Based Active Combustion Control Concept for Reduction of Pulsations and NOx Emissions in Lean Premixed Gas Turbine Combustors (2008)

Strict environmental regulations demand gas turbine operation at very low equivalence ratios. Premixed gas turbine combustors, operated at very lean conditions, are prone to thermoacoustic instabilities. Thermoacoustic instabilities cause significant performance and reliability problems in gas turbine combustors, so their prevention is a general task. Splitting the fuel mass flow between different burner groups, i.e. using a burner group fuel staging technique, is a possibility to control the thermoacoustic instabilities. The resulting combustion perturbations have also effects on the gas turbine NOx emissions making it necessary to find an optimum balance between pulsations and emissions. This paper presents a model based active combustion control concept for the reduction of pulsations and emissions in lean premixed gas turbine combustors. The model is integrated in an observer structure derived from a Luenberger observer. The control logic is based on a PID algorithm allowing either the direct command of the pulsation level with a continuous monitoring and a potential limit setting of the NOx emission level or vice versa. The gas turbine pulsations and emissions are modelled using Gaussian Processes. - Gaussian Processes are stochastic processes related to Neural Networks that can approximate arbitrary functions. Based on measured gas turbine data they can be implemented in an easy and straightforward manner. The model provides the control system with real time data of the outputs resulting from settings of the staging ratio that is the actuating variable of the system. A model based control concept can significantly alleviate the effects of time delays in the system. The model based control concept allows for fast adaptation of the burner group staging ratio during static and transient operations to achieve an optimum of the pulsation and emission levels. During tests the model based control concept gave good results and proved to be robust even at high disturbance levels.
Digitization of electrocardiogram (ECG) signals using delta-sigma modulation (2002)

This paper discusses an over-sampling technique, namely delta-sigma modulation, with special attention paid to its application in digitizing electrophysiological signals such as ECG. Using simple circuitry consisting of operational amplifiers and flip-flop, the delta-sigma modulation system can be implemented. The original signal can be reconstructed by simply applying the digital bit stream through a low-pass filter. The output signal resembles the original signal as shown experimentally. Therefore, the results show the feasibility of this method of digitizing ECG signals with simple circuitry in both digitizing and reconstructing ends.
Oxidative Arylation Mediated by Naphthalene-1,8-diylbis(diphenylmethylium): Synthetic Route to Triarylsulfonium Salts (2009)

Abstract Dicationic species, naphthalene-1,8-diylbis(diphenylmethylium), successfully promoted oxidative arylation of the sulfur atom in (4-N,N-dialkylaminophenyl) phenyl sulfides with (4-N,N-dialkylaminopheny)silanes, affording triarylsulfonium salts in good yield.
Choisir le bon co-équipier pour la génération coopérative de texte (2022)

National audience
Ultrasound-Guided Percutaneous Tenotomy of the Long Head of Biceps Tendon in Patients with Symptomatic Complete Rotator Cuff Tear: In Vivo Non-contRolled Prospective Study (2020)

ultrasound-guided percutaneous LHBT tenotomy is technically feasible and effective.
Integrated genomic analysis of survival outliers in glioblastoma (2016)

We posit that genomic instability is associated with longer survival of GB (possibly with vulnerability to standard therapy); conversely, genomic and epigenetic signatures may identify patients where up-front entry into alternative, targeted regimens would be a preferred, more efficacious management.
Efficient C-space and cost function updates in 3D for unmanned aerial vehicles (2009)

When operating in partially-known environments, autonomous vehicles must constantly update their maps and plans based on new sensor information. Much focus has been placed on developing efficient incremental planning algorithms that are able to efficiently replan when the map and associated cost function changes. However, much less attention has been placed on efficiently updating the cost function used by these planners, which can represent a significant portion of the time spent replanning. In this paper, we present the limited incremental distance transform algorithm, which can be used to efficiently update the cost function used for planning when changes in the environment are observed. Using this algorithm it is possible to plan paths in a completely incremental way starting from a list of changed obstacle classifications. We present results comparing the algorithm to the Euclidean distance transform and a mask-based incremental distance transform algorithm. Computation time is reduced by an order of magnitude for a UAV application. We also provide example results from an autonomous micro aerial vehicle with on-board sensing and computing.
Letters to the editor (2009)

Presents letters sent to the editor regarding previous articles from this publication or other relevant topics of discussion.
Patient mix optimisation in hospital admission planning: a case study (2002)

Admissions planning decides on the number of patients admitted for a specialty each day, but also on the mix of patients admitted. Within a specialty different categories of patients can be distinguished on behalf of their requirement of resources. The type of resources required for an admission may involve beds, operating theatre capacity, nursing capacity and intensive care beds. The mix of patients is, therefore, an important decision variable for the hospital to manage the workload of the inflow of patients. In this paper we will consider the following planning problem: how can a hospital generate an admission profile for a specialty, given a target patient throughput and utilization of resources, while satisfying given restrictions? For this planning problem, we will develop an integer linear programming model, that has been tested in a pilot setting in a hospital. The paper includes an analysis of the planning problem, a description of the model developed, an application of a specialty orthopaedics, and a discussion of the results obtained.
Global research on dental polymers and their application: A bibliometric analysis and knowledge mapping (2023)

This bibliometric analysis can guide researchers, funding agencies, industry, and institutions.