gebhart/patrepeval huggingface dataset:
439. Chlorine activation by redox-transfer. Part I. The reaction between aliphatic amines and carbon tetrachloride (1961)

M. Asscher and D. Vofsi, J. Chem. Soc., 1961, 2261 DOI: 10.1039/JR9610002261
The Attitude Control System Design for the Transition Region and Coronal Explorer Mission (2025)

This paper presents an overview of the Attitude Control System (ACS) design for the Transition Region And Coronal Explorer (TRACE) satellite mission. The TRACE spacecraft is the fourth in NASA's SMall EXplorer (SMEX) series of missions and is scheduled for launch in September 1997. The first part of this paper highlights the SMEX program directives and describes the science objectives and imposed requirements, while the remainder is devoted to the ACS design. The current ACS configuration is a three-axis stabilized, zero-momentum system which re-uses much of the third SMEX satellite design in an effort to decrease overall subsystem costs and increase system reliability. In addition to the primary sensors, TRACE will carry a Global Positioning System (GPS) sensor as part of NASA's technology development and demonstration. The GPS sensor will provide time, position, velocity and attitude information to the ACS and will become a prime sensor after initial verification and validation. The GPS information will not only be used to supplement the ACS attitude determination effort, but will also be utilized to predict ground station contacts onboard the spacecraft. The station contact information will then be sent to the ground and used for spacecraft operations and ground pass scheduling.
Modalities of synthesis of Ki67 antigen during the stimulation of lymphocytes (1991)

The antibody Ki67 is currently used to evaluate the proliferative fraction of solid tumors and some hematological malignancies. We have used phytohemagglutinin (PHA)-stimulated peripheral blood lymphocytes as a model to study the entry of quiescent cells into cell cycle and to follow their progress to the next cycle. Flow cytometric analysis of lymphocyte samples stained with the antibody Ki67 and a DNA marker has allowed us to follow the expression of Ki67 antigen (Ki67 Ag) as a function of the position of the cells in the cell cycle. The use of drugs blocking the stimulated lymphocytes in different phases of the cell cycle permitted us to demonstrate that Ki67 Ag expression started from the beginning of the first S phase. The level of Ki67 Ag increased during S phase until mitosis, when its expression was maximal. After division, the cells in G1 phase showed a decrease in Ki67 Ag expression (possibly corresponding to degradation) until they reentered S phase, when the level of Ki67 Ag increased again. The results confirm that the expression of Ki67 Ag is related to the proliferative state of the cells and suggest that it may be used to determine the proliferative cell fraction in hematopoietic tissues.
Vibration Fatigue Assessment of Additive Manufactured Nickel Alloy With Inherent Damping (2021)

Abstract The fatigue life behavior and internal surface conditions of inherently damped additive manufactured (AM) specimens subjected to vibration bending are under investigation. This study supports research that demonstrated 95% vibration suppression due to damping capability of AM components with 1–3% internal volume of unfused powder; however, the viability of fatigue performance is unknown. The following effort explores whether internal wall damage caused by unfused powder particle motion debits fatigue life. Comparisons between the fatigue behaviors of unfused powder pocket and fully fused nickel based alloy 718 specimens confirms a long suspected powder interaction phenomena critical to damping performance.
Efficient Methods of Air Sampling from Modules of the International Space Station (1999)

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A rapid assay for assessing bacterial effects on Arabidopsis thermotolerance (2023)

This method enables rapid screening of individual bacterial strains for beneficial effects on host plant thermotolerance. The throughput and reproducibility of the system is ideal for testing many genetic variants of Arabidopsis and bacterial strains.
Mammographic Breast Density Assessment (2013)

In Taiwan, breast cancer has become the second leading type of cancerous diseases among women. The incidence and mortality rates keep rising, and mammography remains to be the only effective screening technique which is capable of detecting breast cancer at an early stage. High mammographic density is a strong risk factor for breast cancer. Based on BI-RADS categories, mammograms are classified into four categories (D1-D4) based on the percentage of dense area (PDA). However, reporting of breast density suffers from high inter and intra observer variability. Because the risk of breast cancer is at least three times greater in women with density (D3&amp;D4) than in women with density D1, this paper proposes a local entropy method to identify the higher density (D3&amp;D4) from (D1&amp;D2) by two features. There are 406 mammograms with four categories collected for the test. The higher density (D3&amp;D4) can be identified from lower density (D1&amp;D2) in the correction of 100%. The Az of receiver operating characteristic curve of 0.9996 can be achieved.
Switching of electrodes in the end zone of a series MHD generator (1978)

The effect of the commutation scheme of segmented electrodes in the end zones of a series single-load duct on the local and integral characteristics of the generator is investigated. A numerical solution of the two-dimensional electrodynamic problem is obtained for the end zone of a duct with a homogeneous flow. It is shown on the basis of an analysis of the integral characteristics of the duct that maximum efficiency of energy conversion is achieved with a commutation angle of the short-circuited segmented electrodes decreasing in the stray field of the magnet. The character of the distribution of the current and potential in the vicinity of the joint of the solid current-collecting electrode and segmented zone of the duct is analyzed. It is shown that for various electrode commutation schemes there exists a position of the joint in the stray field of the magnet such that concentrations of the electric current and field strength practically disappear in the vicinity of the joint.
[Research on the interaction of aristolochic acid and bovine serum albumin]. (2006)

The interaction between aristolochic acid and bovine serum albumin (BSA) under physiological conditions was investigated by fluorescence quenching methods. The results indicate that there is a strong interaction between aristolochic acid and BSA, and the distances between the binding location and tryptophan residue is 2.8 nm. The binding location of aristolochic acid in BSA is in subdomain III A. In addition, the effects of aristolochic acid on the protein second structure were studied using CD and FTIR techniques. The results of CD proved that the alpha-helix contents of BSA decreased from 43.5% to 36.7% after binding with aristolochic acid.
Alzheimer Disease Biomarkers as Outcome Measures for Clinical Trials in MCI (2014)

These findings provide information about biomarker enrichment and outcome measurements that could be employed to reduce MCI patient samples and treatment duration in future clinical trials.
Immunogenicity, safety and efficacy of sequential immunizations with an SIV-based IDLV expressing CH505 Envs (2020)

Abstract A preventative HIV-1 vaccine is an essential intervention needed to halt the HIV-1 pandemic. Neutralizing antibodies protect against HIV-1 infection in animal models, and thus an approach toward a protective HIV-1 vaccine is to induce broadly cross-reactive neutralizing antibodies (bnAbs). One strategy to achieve this goal is to define envelope (Env) evolution that drives bnAb development in infection and to recreate those events by vaccination. In this study we report the immunogenicity, safety and efficacy in rhesus macaques of an SIV-based integrase defective lentiviral vector (IDLV) expressing sequential gp140 Env immunogens derived from the CH505 HIV-1-infected individual who made the CH103 and CH235 bnAb lineages. Immunization with IDLV expressing sequential CH505 Env induced higher magnitude and more durable binding and neutralizing antibody responses compared to protein or DNA +/- protein immunizations using the same sequential envelopes. Compared to monkeys immunized with vector expressing Envs alone, those immunized with the combination of IDLV expressing Env and CH505 Env protein demonstrated improved durability of antibody responses at six month after the last immunization as well as lower peak viremia and better virus control following autologous SHIV-CH505 challenge. There was no evidence of vector mobilization or recombination in the immunized and challenged monkeys. Our results show that while IDLV proved safe and successful at inducing higher titer and more durable immune responses compared to other vaccine platforms, the use of non-stabilized sequential envelope trimers did not induce broadly neutralizing antibody responses.
699: Comparison of Surgical Outcomes between Pure and Hand-Assisted Laparoscopic Radical Nephrectomy (2007)

You have accessJournal of UrologyModerated Poster 21, Monday, May 21, 2007, 8:00 - 10:00 am1 Apr 2007699: Comparison of Surgical Outcomes between Pure and Hand-Assisted Laparoscopic Radical Nephrectomy Neema Navai, Lee C. Zhao, Onisuru Okotie, Justin Han, Ali Zhumkhawala, Mukul Patil, Robert B. Nadler, and Norm D. Smith Neema NavaiNeema Navai More articles by this author , Lee C. ZhaoLee C. Zhao More articles by this author , Onisuru OkotieOnisuru Okotie More articles by this author , Justin HanJustin Han More articles by this author , Ali ZhumkhawalaAli Zhumkhawala More articles by this author , Mukul PatilMukul Patil More articles by this author , Robert B. NadlerRobert B. Nadler More articles by this author , and Norm D. SmithNorm D. Smith More articles by this author View All Author Informationhttps://doi.org/10.1016/S0022-5347(18)30939-XAboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail "699: Comparison of Surgical Outcomes between Pure and Hand-Assisted Laparoscopic Radical Nephrectomy." The Journal of Urology, 177(4S), p. 235 © 2016 by American Urological AssociationFiguresReferencesRelatedDetails Volume 177Issue 4SApril 2007Page: 235 Advertisement Copyright & Permissions© 2016 by American Urological AssociationMetricsAuthor Information Neema Navai More articles by this author Lee C. Zhao More articles by this author Onisuru Okotie More articles by this author Justin Han More articles by this author Ali Zhumkhawala More articles by this author Mukul Patil More articles by this author Robert B. Nadler More articles by this author Norm D. Smith More articles by this author Expand All Advertisement PDF downloadLoading ...
Measurement of Performance Parameters of Multimedia Services on a Hybrid Access Network xPON/xDSL (2019)

The aim of this work is to focus on new types of telecommunication networks, which are founded on conventional types of communication technologies that are based on xPON/xDSL. The communication technologies ADSL2+ DSLAM, VDSL, and EPON are mentioned in this article. During the tests, route lengths were changed by means of line simulators from 0 to 2 km for the metallic part and 0 or 10 km for the optical route. Then the measurement output includes the recorded values of average data flow and the packet loss rate of the transmitted IPTV media with different codec types. The VolP service was measured by means of IxChariot parameters of objective tests, i.e. R-factor and MOS. In terms of the data flow it was measured for both upward and downward direction.
Human-Machine Collaborative Optimization via Apprenticeship Scheduling (2018)

Coordinating agents to complete a set of tasks with intercoupled temporal and resource constraints is computationally challenging, yet human domain experts can solve these difficult scheduling problems using paradigms learned through years of apprenticeship. A process for manually codifying this domain knowledge within a computational framework is necessary to scale beyond the ``single-expert, single-trainee" apprenticeship model. However, human domain experts often have difficulty describing their decision-making processes, causing the codification of this knowledge to become laborious. We propose a new approach for capturing domain-expert heuristics through a pairwise ranking formulation. Our approach is model-free and does not require enumerating or iterating through a large state space. We empirically demonstrate that this approach accurately learns multifaceted heuristics on a synthetic data set incorporating job-shop scheduling and vehicle routing problems, as well as on two real-world data sets consisting of demonstrations of experts solving a weapon-to-target assignment problem and a hospital resource allocation problem. We also demonstrate that policies learned from human scheduling demonstration via apprenticeship learning can substantially improve the efficiency of a branch-and-bound search for an optimal schedule. We employ this human-machine collaborative optimization technique on a variant of the weapon-to-target assignment problem. We demonstrate that this technique generates solutions substantially superior to those produced by human domain experts at a rate up to 9.5 times faster than an optimization approach and can be applied to optimally solve problems twice as complex as those solved by a human demonstrator.
Magnetic stabilization of a rotating glow discharge (1987)

A series of measurements have been made on a magnetically rotated glow discharge over a range of pressure of 24–53 mbars. An increase in the current at which the glow-to-arc transition occurred from 550 mA for a stationary discharge to 2.5 A at a magnetic flux density of 0.025 T for a rotating discharge, with a corresponding power increase at the glow-to-arc transition from 250 to 1540 W was measured. At magnetic flux densities of about 0.017 T a discontinuity in the discharge voltage was observed which was caused by the discharge rotating in its own wake. Results from other sources have indicated that a glow discharge can be maintained up to discharge currents of 10 A, however, the results obtained here under identical conditions indicate that the discharge was not a glow but an arc. The results have important implications to power limited glow-discharge processes such as CO2 lasers, ozone generation, and low-pressure chemical synthesis.
Overview: 10X uncertainty factors in noncancer risk assessment (1997)

"Overview: 10X uncertainty factors in noncancer risk assessment." Human and Ecological Risk Assessment: An International Journal, 3(4), pp. 543–544
Optimization of H− production from a small multicusp ion source (1989)

A small multicusp source has been developed to generate volume-produced H− ion beams in pulsed operation. To obtain high H− current densities (J−&amp;gt;250 mA/cm2), this source requires relatively high gas pressure and high discharge power. Experiments have been conducted to improve the arc and gas efficiencies, the beam pulse shape, and the H− to electron ratio in the extracted beam by optimizing the filter magnetic field, the thickness and axial position of the extraction aperture in the plasma electrode, and by mixing xenon or other elements with hydrogen in the discharge. The biggest improvement is achieved by adding cesium to the source, resulting in a fivefold increase in the extractable H− current and a substantial drop in the e/H− ratio. In order to improve the lifetime of the cathode, both filament and coaxial type LaB6 cathodes have been developed and have been operated successfully in this H− source.
FDTD analysis of 81-element antipodal Fermi antenna array with axially symmetric array element pattern (2008)

FDTD analysis of APFA array as a receiving elements for real time PMMW imaging has been presented. It has been demonstrated that the mutual coupling among APFA elements significantly decreases by the presence of corrugation. Furthermore, an axially symmetric array element pattern having a beam width of about 60deg is obtained for the 9 times 9 element APFA array, which is suitable for f/D=1 optics. Numerical and experimental study of the array element pattern for all array elements is remaining as future works.
Channel estimation in millimeter wave MIMO systems with one-bit quantization (2014)

We develop channel estimation agorithms for millimeter wave (mmWave) multiple input multiple output (MIMO) systems with one-bit analog-to-digital converters (ADCs). Since the mmWave MIMO channel is sparse due to the propagation characteristics, the estimation problem is formulated as a one-bit compressed sensing problem. We propose a modified EM algorithm that exploits sparsity and has better performance than the conventional EM algorithm. We also present a second solution using the generalized approximate message passing (GAMP) algorithm to solve this optimization problem. The simulation results show that GAMP can reduce mean squared error in the important low and medium SNR regions.
Digestive fate of dietary carrageenan: Evidence of interference with digestive proteolysis and disruption of gut epithelial function (2016)

This work raises the possibility that CGN may reduce protein and peptide bioaccessibility, disrupt normal epithelial function, promote intestinal inflammation, and consequently compromise consumer health.
QUANTITATIVE TITRATIONS OF MOUSE H-2 ANTIBODIES USING Cr51-LABELLED TARGET CELLS (1965)

A cytotoxic assay using isotope labelled target cells has been devised. Cr51 was found to be a very suitable isotope allowing swift labelling and a high degree of specificity. With regard to accuracy the test system compared favourably with ordinary cytotoxic assays using uptake of supravital stains or morphological changes as criteria of cell death. The test is considered to be useful in quantitative studies of antigens and antibodies involved in transplantation immunology.
Degradation of nonencapsulated polymer-based light-emitting diodes: Noise and morphology (1997)

We show that the degradation of a nonencapsulated polymer-based light-emitting diode (LED) is accompanied by the appearance of strong fluctuations,—that is noise both in the radiance and in the film resistance. We demonstrate a correlation between the morphological changes which occur during the degradation process and the noise, suggesting that the sampling of noise during LED operation can be used as a very efficient tool to predict the approaching failure of LEDs in real-life applications. The morphological changes in LED degradation are essentially a two-stage process. First, there is formation of “bubbles” at the metal–polymer interface due to delamination of the polymer film from the metal surface. Second, carbonized areas in the form of “black spots” are formed. Accumulation of carbonized areas leads to short and/or open circuits and final LED failure.
Die Reaktivdestillation: Moderne Trenn‐ und Reaktionstechniken (2003)

Abstract Die Reaktivdestillation beruht auf der Integration der chemischen Umsetzung eines Eduktgemisches und der stofflichen Aufarbeitung des Produktgemisches in einem einzigen Apparat, der in der Regel als Gegenstromkolonne ausgeführt ist. Die Motive für den Einsatz dieser Technologie sind vielfältig. Bei der Durchführung von Gleichgewichtsreaktionen können häufig deutlich höhere Umsätze als in konventionellen einphasigen Reaktoren erreicht werden. Unerwünschte Folgereaktionen können durch eine verbesserte Konzentrationsführung der Reaktivdestillation unterdrückt werden, so dass die Selektivität bezüglich der Zielprodukte erhöht wird.Bei stark exothermen Umsetzungen ist der Temperaturanstieg in einer reaktiven Destillationskolonne besser kontrollierbar. Darüber hinaus können auch solche Mischungen, die durch konventionelle Destillation nicht oder nur sehr schwer in ihre Einzelkomponenten trennbar sind, aufgearbeitet werden. Diese Vorteile führen zur signifikanten Reduzierung von Investitions‐und Betriebskosten. Infolge der synergetischen Wechselwirkungen von chemischer Reaktion und Destillation in einem Apparat zeigen Prozesse der Reaktivdestillation häufig komplexes Betriebsverhalten. Daher ist die Auslegung dieser integrierten Prozesse deutlich anspruchsvoller als die Auslegung konventioneller Reaktor‐Separator‐Sequenzen.
Editor's Note (2001)

The articles in this volume represent the interpretative and analytical traditions in ethnic studies scholarship. The first three contributions draw attention to how the tools of literary analysis and inquiry add new perspectives to our understanding of the social realities framing the lives of people of color. The remaining articles using both quantitative and qualitative research methods similarly inform the complex life experiences of people of color. In common these seemingly disparate sets of articles provide sharp and in a couple of instances challenging commentaries on life and living on the margin and the wider social spaces that are circumscribed by color lines.
Virtual Reality als Trainingsmethode: Eine Laborstudie aus dem Industriebereich (2021)

Zusammenfassung Virtual Reality (VR) gilt als vielversprechende Technologie, nicht zuletzt deshalb, weil damit komplexe Inhalte vermittelt werden können. Da VR ein hohes Potenzial für Interaktivität und Immersion aufweist, findet die Technologie auch in der Industrie Anwendung, beispielsweise für die realitätsnahe Simulation von Montage- und Instandhaltungsarbeiten. Wissenschaftliche Befunde zur Wirksamkeit des Lernens in industriellen VR-Umgebungen existieren bislang kaum. Es ist daher auch unklar, wie Lerneffekte in virtuellen Umgebungen verbessert werden können. Der vorliegende Artikel untersucht, ob VR-gestütztes Training im Vergleich zu klassischem training-on-the-job (begleitet von einem Tutor) zu einer Steigerung des Lernerfolgs führt. Basierend auf einem VR-Trainingstool zum Erlernen von Montageabläufen wurde eine Laborstudie mit 24 ProbandInnen durchgeführt. Die Ergebnisse zeigen, dass VR-gestütztes Training zwar als weniger anstrengend empfunden wurde, der Lernerfolg jedoch im traditionellen training-on-the-job signifikant besser ausfiel. Auf Basis dieser Erkenntnisse werden die Chancen und Risiken aktueller VR-Trainingssimulationen diskutiert und konkrete Handlungsempfehlungen zur Steigerung des Lerneffekts formuliert.
Influence of pad "resonators" on saxophone (2013)

cote interne IRCAM: Eveno13a
Sperm swim-up: a simple and effective technique of semen processing for intrauterine insemination. (2008)

Our findings suggest that sperm swim-up technique is an easy reliable and effective sperm processing method for insemination purposes.
Umbilical cord blood collection, storage and transplantation: Issues and recommendations for expectant parents and patients (1999)

opinion
Figure S7 from Inhibition of Translesion DNA Synthesis as a Novel Therapeutic Strategy to Treat Brain Cancer (2023)

&lt;p&gt;Model for translesion DNA synthesis (panel A). Model for the potentiation of tempozolomide by 5-NIdR in which the nucleoside triphosphate (5-NITP) inhibits the replication of damaged DNA (panel B).&lt;/p&gt;
Field-induced metal-insulator transition and switching phenomenon in correlated insulators (2008)

We study the nonequilibrium switching phenomenon associated with the metal-insulator transition under electric field $E$ in correlated insulators by a gauge-covariant Keldysh formalism. Due to the feedback effect of the resistive current $I$, this occurs as a first-order transition with a hysteresis of $I\text{\ensuremath{-}}V$ characteristics having a lower threshold electric field $(\ensuremath{\sim}{10}^{4}\text{ }\text{V}\text{ }{\text{cm}}^{\ensuremath{-}1})$ much weaker than that for the Zener breakdown. It is also found that the localized midgap states introduced by impurities and defects act as hot spots across which the resonant tunneling occurs selectively, which leads to the conductive filamentary paths and reduces the energy cost of the switching function.