gebhart/patrepeval huggingface dataset:
RF or THz Signals Generated from DC Biased Multimode Lasers (2007)

Although self pulsating (SP) lasers are DC biased, they feature a modulation of the output power. For the results presented in this paper, the SP frequency corresponds to the frequency spacing between longitudinal modes or its second harmonic. The performances of both a 40 GHz self pulsating distributed Bragg reflector laser and of a 660 GHz slotted laser are presented. For the first laser, the radio frequency (RF) signal was analysed on electrical spectrum analyser and its linewidth was smaller that the sum of the main optical modes, proving a passive modelocking of the mode phases. For the slotted laser, a bolometer interfaced to a FT IR spectrometer is used for the terahertz (THz) detection. A signal 10 times larger than the noise level was measured with this set up. Both lasers have demonstrated to be an easy solution to produce RF or THz signal generator.
A PE-MOCVD route to V<sub>2</sub>O<sub>5</sub> nanostructured thin films (1999)

Vanadium pentoxide thin films are grown on glass and borosilicate substrates by PACVD using a vanadyl (IV) beta-diketonate as precursor. The depositions are can-led out in an RF-plasma reactor with Ar-O2 mixtures and soft process conditions, obtaining high-purity nanocrysralline layers with a strong preferential orientation. The microstructural and morphological characteristics of the films, analyzed respectively by XRD and AFM, show that the sample features can be accurately tailored by an adequate choice of the synthesis conditions. The composition and purity of the films are studied by XPS and SIMS analyses. Impedance Spectroscopy is used to study the conductivity of the layers and the dependence of electrical properties on microstructure.
Foreword by the regular editor (2011)

In more than one previous foreword, I have shared with our readers some of the insights or inspirations I experienced while reading and editing the articles appearing in that issue. This time, the articles on Dag Hammarskjold's visit to South Africa have prompted me to look up a page I wrote two weeks after that very significant visit. It was the first time I ventured to write a letter to the press, and I sent it to the Afrikaans newspaper in Cape Town, Die Burger (The Citizen).
Patients' views of priority setting for new medicines (2002)

Patients' views of priority setting are not necessarily influenced by the patients' individual needs and may contribute to the development of priority guidelines. Knowledge of the patients' perceptions of priority setting for a specific treatment might also support patient-provider discussions on priority setting.
Las competencias profesionales básicas del especialista en Medicina General Integral: Una propuesta metodológica de evaluación en el municipio de Cienfuegos. (2005)

"El proceso de evaluación de las competencias profesionales del Médico General Integral con el objetivo de determinar su nivel de competencia y realizar el diagnóstico de sus necesidades de aprendizaje es un elemento de vital importancia para el perfeccionamiento continuo de este profesional médico; del cual hoy en día la sociedad espera mucho más y exige mayor nivel de competencia y capacidad de resolución. El desarrollo de los recursos humanos del Sistema de Salud es una de las condiciones más importantes para lograr que los servicios de atención sanitaria mejoren su capacidad resolutiva y la calidad de las prestaciones. El tema de la formación continua de los recursos humanos en la Atención Primaria de Salud constituye en el momento actual un problema priorizado del Sistema Nacional de Salud; la calidad científica y humana de los trabajadores del sistema son el sostén y en gran parte la garantía de los logros de la Salud Pública en nuestro país. En el presente trabajo se plantea la necesidad de organizar una metodología para la evaluación de las competencias profesionales básicas del médico general integral, sustentada en un proceso de diagnóstico, cuyo objeto de investigación lo determina el proceso de formación continua de los Médicos Generales Integrales, y su campo de acción se delimita a la evaluación de las competencias profesionales de estos, en función de valorar su desempeño y garantizar la calidad en el ejercicio de la profesión. La novedad de la propuesta se manifiesta en la posibilidad de sistematizar desde el punto de vista teórico y sobre bases científicas las consideraciones en torno a una metodología de evaluación de las competencias profesionales básicas del Medico General Integral y poseer la misma un carácter holístico que permite combinar la teoría con la práctica y de esta manera contrastar los logros esperados con los alcanzados; lo que la condiciona como una actividad permanente, reflexiva y compartida entre evaluados y evaluadores."
Structural and Kinetic Characterization of <i>Escherichia coli</i> TadA, the Wobble-Specific tRNA Deaminase (2006)

The essential tRNA-specific adenosine deaminase catalyzes the deamination of adenosine to inosine at the wobble position of tRNAs. This modification allows for a single tRNA species to recognize multiple synonymous codons containing A, C, or U in the last (3'-most) position and ensures that all sense codons are appropriately decoded. We report the first combined structural and kinetic characterization of a wobble-specific deaminase. The structure of the Escherichia coli enzyme clearly defines the dimer interface and the coordination of the catalytically essential zinc ion. The structure also identifies the nucleophilic water and highlights residues near the catalytic zinc likely to be involved in recognition and catalysis of polymeric RNA substrates. A minimal 19 nucleotide RNA stem substrate has permitted the first steady-state kinetic characterization of this enzyme (k(cat) = 13 +/- 1 min(-)(1) and K(M) = 0.83 +/- 0.22 microM). A continuous coupled assay was developed to follow the reaction at high concentrations of polynucleotide substrates (>10 microM). This work begins to define the chemical and structural determinants responsible for catalysis and substrate recognition and lays the foundation for detailed mechanistic analysis of this essential enzyme.
A vascular transport operator (1993)

A pulse or a sharp front in concentration of a tracer or a substrate in the blood within a vessel becomes dispersed while being transported along a vessel. Cross-stream mixing and pulsations in flow with the heartbeat cause the dispersion to be less than would occur with a parabolic velocity profile (Newtonian flow). These characteristics allow intravascular mass transport to be described well by a simple two-parameter differential operator, which is a one-dimensional representation of the rather complex real situation. The operator consists of two components in series, a pure delay and a fourth-order linear differential operator. The latter is merely two underdamped second-order operators in series, with fixed relationships between the natural frequencies and damping coefficients. The operator is useful because it provides a transport function with skewness and kurtosis suitable to intravascular transport where the mean velocity profile is blunter than in Newtonian parabolic flow. The parameters of the operator are its mean transit time, t, and its relative dispersion, RD, which is the standard deviation of the response impulse divided by t. The operator transport function describes blood transport through the human leg arterial system, where the RD values are approximately 15-20%.
Real-time 3-D ultrasound imaging using sparse synthetic aperture beamforming (1998)

A method for real-time three-dimensional (3-D) ultrasound imaging using a mechanically scanned linear phased array is proposed. The high frame rate necessary for real-time volumetric imaging is achieved using a sparse synthetic aperture beamforming technique utilizing only a few transmit pulses for each image. Grating lobes in the two-way radiation pattern are avoided by adjusting the transmit element spacing and the receive aperture functions to account for the missing transmit elements. The signal loss associated with fewer transmit pulses is minimized by increasing the power delivered to each transmit element and by using multiple transmit elements for each transmit pulse. By mechanically rocking the array, in a way similar to what is done with an annular array, a 3-D set of images can be collected in the time normally required for a single image.
An Evolutionarily Conserved Domain of <i>roX2</i> RNA Is Sufficient for Induction of H4-Lys16 Acetylation on the Drosophila X Chromosome (2007)

The male-specific lethal (MSL) complex, which includes two noncoding RNA on X (roX)1 and roX2 RNAs, induces histone H4-Lys16 acetylation for twofold hypertranscription of the male X chromosome in Drosophila melanogaster. To characterize the role of roX RNAs in this process, we have identified evolutionarily conserved functional domains of roX RNAs in several Drosophila species (eight for roX1 and nine for roX2). Despite low homology between them, male-specific expression and X chromosome-specific binding are conserved. Within roX RNAs of all Drosophila species, we found conserved primary sequences, such as GUUNUACG, in the 3' end of both roX1 (three repeats) and roX2 (two repeats). A predicted stem-loop structure of roX2 RNA contains this sequence in the 3' stem region. Six tandem repeats of this stem-loop region (72 nt) of roX2 were enough for targeting the MSL complex and inducing H4-Lys16 acetylation on the X chromosome without other parts of roX2 RNA, suggesting that roX RNAs might play important roles in regulating enzymatic activity of the MSL complex.
Infectious Bursal Disease Virus Variant from Commercial Leghorn Pullets (1990)

An infectious bursal disease virus (IBDV) was isolated from 39-to-43-day-old commercial leghorn pullets suspected of having infectious bursal disease (IBD). These chickens had been vaccinated with a commercial live IBDV vaccine at 28 and 35 days of age. An isolate designated IN was recovered using specific-pathogen-free (SPF) chickens and the BGM-70 established cell line. Experimental studies using SPF chickens vaccinated with either inactivated vaccines made from the vaccine strain used in the problem flock or a standard-type vaccine indicated no protection against the IN isolate. However, two variants and another standard-type vaccine induced protection against the IN isolate. Cross-neutralization tests indicated that the IN isolate differed antigenically from commercial vaccine strains and was related to the variant IBDV strains recently isolated from broilers. To our knowledge, this is the first report of a variant IBDV recovered from commercial layer chickens in the United States.
Conservation of the Conformation and Positive Charges of Hepatitis C Virus E2 Envelope Glycoprotein Hypervariable Region 1 Points to a Role in Cell Attachment (2001)

Chronic hepatitis C virus (HCV) infection is a major cause of liver disease. The HCV polyprotein contains a hypervariable region (HVR1) located at the N terminus of the second envelope glycoprotein E2. The strong variability of this 27-amino-acid region is due to its apparent tolerance of amino acid substitutions together with strong selection pressures exerted by anti-HCV immune responses. No specific function has so far been attributed to HVR1. However, its presence at the surface of the viral particle suggests that it might be involved in viral entry. This would imply that HVR1 is not randomly variable. We sequenced 460 HVR1 clones isolated at various times from six HCV-infected patients receiving alpha interferon therapy (which exerts strong pressure towards quasispecies genetic evolution) and analyzed their amino acid sequences together with those of 1,382 nonredundant HVR1 sequences collected from the EMBL database. We found that (i) despite strong amino acid sequence variability related to strong pressures towards change, the chemicophysical properties and conformation of HVR1 were highly conserved, and (ii) HVR1 is a globally basic stretch, with the basic residues located at specific sequence positions. This conservation of positively charged residues indicates that HVR1 is involved in interactions with negatively charged molecules such as lipids, proteins, or glycosaminoglycans (GAGs). As with many other viruses, possible interaction with GAGs probably plays a role in host cell recognition and attachment.
Selected Post-Heating Properties of Microwave or Hot Water Heated Egg White for In-Shell Pasteurization (2010)

Heat treatments adversely affect the functional properties of the egg white. The selected properties of egg white after in-shell pasteurization by microwave heating were compared to that of egg white after in-shell pasteurization by immersion in hot water. The effects of the heat treatments on egg white enthalpy of denaturation, viscosity, turbidity, foam density, and stability, and also the dielectric properties, were investigated and compared to that of untreated egg white. Results demonstrated that microwave pasteurized in-shell eggs had nearly 20% higher enthalpy of denaturation, 4 times more viscosity, 50% more stable foam with 30% less foam density and 78% clearer, on an average, when compared to the water bath pasteurized ones.
Synthesis of rhenium nitride crystals with MoS<sub>2</sub> structure (2012)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Fumio Kawamura, Hitoshi Yusa, Takashi Taniguchi; Synthesis of rhenium nitride crystals with MoS2 structure. Appl. Phys. Lett. 18 June 2012; 100 (25): 251910. https://doi.org/10.1063/1.4729586 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAIP Publishing PortfolioApplied Physics Letters Search Advanced Search |Citation Search
Entwicklung eines Praxis-Leitfadens Kooperative Projekte zur Gesundheitsförderung in Stadt und Umwelt (1997)

Bei der Gesundheitsförderung auftretende Umsetzungsprobleme erfordern eine eigenständige Policy-Forschung in den Gesundheitswissenschaften. Projekte der kommunalen Gesundheitsförderung werden immer häufiger in Kooperation mehrerer Akteure geplant und umgesetzt. Die zur erfolgreichen Realisierung kooperativer Projekte erforderlichen Schritte kooperativen Planens sind Gegenstand einer empirischen Untersuchung, in der anhand von Fallanalysen eine bereichsbezogene Theorie kooperativen Planens und ein Leitfaden für die Planung und Durchführung kooperativer Projekte entwickelt wurde. Anhand eines Beispiels gescheiterter Kooperation wird der Einsatz des in Entwicklung befindlichen Leitfadens demonstriert. In der Diskussion werden Möglichkeiten und Grenzen des Einsatzes eines solchen Leitfadens besprochen.
Federated Authentication Mechanism using Cellular Phone - Collaboration with OpenID (2009)

OpenID authentication is a method to provide a single sign-on (SSO) service among Internet service sites. OpenID has been widely adopted by blog sites because of its usability and ease of implementation. However, the assurance of the ID in OpenID authentication is a concern because currently anyone can hold accounts on an OpenID provider (OP) simply by sending a registration mail and OPs usually do not check to confirm the real identity of their applicants. In contrast, a telephone company checks the identity of their mobile service users before a contract is completed by referring to such credentials as a driverpsilas license or passport. Therefore, on a cellular phone, the ID, such as subscriber ID, is assured by the contract process and telephone companies can trace the userpsilas identity through the ID. In this paper, we propose a federation authentication scheme between Open ID and a cellular phone in order to assure the ID of the OpenID. In addition, by using the cellular phone at user authentication for each service use, secure authentication is also provided.
A visual odometry method based on the SwissRanger SR4000 (2010)

This paper presents a pose estimation method based on a 3D camera - the SwissRanger SR4000. The proposed method estimates the camera's ego-motion by using intensity and range data produced by the camera. It detects the SIFT (Scale- Invariant Feature Transform) features in one intensity image and match them to that in the next intensity image. The resulting 3D data point pairs are used to compute the least-square rotation and translation matrices, from which the attitude and position changes between the two image frames are determined. The method uses feature descriptors to perform feature matching. It works well with large image motion between two frames without the need of spatial correlation search. Due to the SR4000's consistent accuracy in depth measurement, the proposed method may achieve a better pose estimation accuracy than a stereovision-based approach. Another advantage of the proposed method is that the range data of the SR4000 is complete and therefore can be used for obstacle avoidance/negotiation. This makes it possible to navigate a mobile robot by using a single perception sensor. In this paper, we will validate the idea of the pose estimation method and characterize the method's pose estimation performance.
Histamine (1976)

Histamine is one of a group of diverse substances that include: the biogenic amines, histamine and serotonin, small peptides, such as the kinins, and lipids, such as the prostaglandins and the chemically unidentified, slow reacting substance of anaphylaxis (SRS-A). All these substances are released from tissues during injury or inflammatory reactions. All produce edema when injected locally, alter blood pressure when injected systemically, and act on a variety of smooth-muscle preparations in vitro. Their actions can be attenuated, blocked, or potentiated by a variety of agents either by interacting at receptors or by blocking the enzymes that synthesize or metabolize . . .
Clostridium difficile Infections: What Every Clinician Should Know (2010)

The leading cause of nosocomial enteric infections in the US is a potentially lethal condition that influences the daily care of medical and surgical patients across all specialties. The incidence is increasing because of the emergence of a new virulent strain, the development of antibiotic resistance, and an increase in infection rates within populations once believed to be at low risk. Current strategies for the prevention, diagnosis, and treatment are cited. Transmission can be minimized with the use of gloves and gowns; proper hand washing with soap and water (alcohol-based washes do not prevent transmission); careful use and proper cleaning of shared patient equipment, such as blood-pressure cuffs, thermometers, and stethoscopes; and the use of bactericidal cleaning solutions. Restricted or judicious antibiotic use will also reduce the incidence of Clostridium difficile infections.
Focused ion beam induced deposition of platinum for repair processes (1991)

Focused ion beam induced deposition of platinum from a gas of (methylcyclopentadientyl) trimethyl platinum has been demonstrated and used for integrated circuit repair. Ga+ ions in the range of 30–40 keV have been used and line widths down to 0.3 μm with resistivities as low as 70 μΩ cm have been observed. The deposition yield as a function of angle of incidence has been measured by scanning the ion beam across a 2.6 μm diameter pyrex rod. The conductors on an actual integrated circuit have been modified by milling and filling a via to connect two Al lines in a sandwiched configuration as well as by milling two vias through passivation and connecting two adjacent Al lines.
Real-time hand tracking for rehabilitation and character animation (2014)

Hand and finger tracking has a major importance in healthcare, for rehabilitation of hand function required due to a neurological disorder, and in virtual environment applications, like characters animation for on-line games or movies. Current solutions consist mostly of motion tracking gloves with embedded resistive bend sensors that most often suffer from signal drift, sensor saturation, sensor displacement and complex calibration procedures. More advanced solutions provide better tracking stability, but at the expense of a higher cost. The proposed solution aims to provide the required precision, stability and feasibility through the combination of eleven inertial measurements units (IMUs). Each unit captures the spatial orientation of the attached body. To fully capture the hand movement, each finger encompasses two units (at the proximal and distal phalanges), plus one unit at the back of the hand. The proposed glove was validated in two distinct steps: (a) evaluation of the sensors' accuracy and stability over time; (b) evaluation of the bending trajectories during usual finger flexion tasks based on the intra-class correlation coefficient (ICC). Results revealed that the glove was sensitive mainly to magnetic field distortions and sensors tuning. The inclusion of a hard and soft iron correction algorithm and accelerometer and gyro drift and temperature compensation methods provided increased stability and precision. Finger trajectories evaluation yielded high ICC values with an overall reliability within application's satisfying limits. The developed low cost system provides a straightforward calibration and usability, qualifying the device for hand and finger tracking in healthcare and animation industries.
One Well Evaluation in Low Permeability Gas Sandstones from Nuclear Magnetic Resonance (NMR) Logs (2011)

Abstract It is difficult for petrophysicists in evaluating reservoir porosity, permeability and irreducible water saturation in low permeability because of the complicated pore structure. NMR logs have the advantage in this aspect. In this paper, with the analysis of a well with low permeability sandstones, we proposed the models to calculate reservoir porosity based on three parameters models from conventional logs, the parameters of classic SDR and Timur-Coates models are calibrated from 36 core samples, from this, the permeability estimation models from NMR logs are obtained. At the same time, the relationship between pore structure index (K/ϕ) and irreducible water saturation are established for bound water saturation calculation. The application of this well shows that these methods and models are usable in low permeability sandstones.