gebhart/patrepeval huggingface dataset:
Exploring Asynchronous Online Discussions through Hierarchical Visualisation (2009)

We introduce a highly customizable social visualization system for exploring online discussions through visual representations of conversation threads. The tool provides users with an interface that allows the navigation and exploration through the often intricate structure of online discussions. Apart from being useful for readers and participants of these forums, the interactive capabilities of our system makes it appealing for social researchers interested in understanding the phenomena and intrinsic structure of online conversations. We also show a use case where we applied the tool to visualize discussions from Slashdot.org, showing its capabilities to represent new, in this case Slashdot specific, metrics. The visual representation of discussion threads has arisen as a complement for supporting investigation,as it helps to understand such large amount of information and contributes to the generation of new research ideas.
New Sequential External Counterpulsation for the Treatment of Acute Myocardial Infarction (1984)

Over a period of 6 years, 52 patients with acute myocardial infarction (AMI) were treated with sequenced external counterpulsation (SECP). Of the 23 patients who experienced severe chest pain, 22 had complete relief within 30 min of SECP, and 31 of the 52 patients showed remarkable improvement in their electrocardiogram after the first hour of treatment. Fifteen patients were studied using the 35-lead ST segment elevation-mapping method. sigma ST and NST, indicators of infarct size, showed decreasing trends in seven patients treated with SECP for a period of 6 days, whereas sigma ST and NST of the control group of eight patients increased during the same period. Our hemodynamic data indicate that in four of five patients with AMI and left heart failure, the central venous pressure and cardiac output increased after SECP, whereas the pulmonary wedge pressure decreased. Measurements of the P-wave terminal force of lead V1 also demonstrated that the application of SECP can improve left ventricular function in a majority of patients with AMI.
An Assessment of the Oracle Password Hashing Algorithm (2005)

In this paper the authors examine the mechanism used in Oracle databases for protecting users' passwords. We review the algorithm used for generating password hashes, and show that the current mechanism presents a number of weaknesses, making it straightforward for an attacker with limited resources to recover a user's plaintext password from the hashed value. We also describe how to implement a password recovery tool using off-the-shelf software. We conclude by discussing some possible attack vectors and recommendations to mitigate this risk.
A comparison of the different broadband impedance measurement techniques for lithium-ion batteries (2016)

Electrochemical impedance spectroscopy (EIS) is a well-known technique that has been employed on various electrochemical cells in order to obtain their impedance spectra. Lithium-ion cells are some of these cells to which it has been applied. The impedance spectra obtained from EIS can be used to estimate various battery state of health (SOH) and state of charge (SOC) characteristics. The lengthy acquisition time associated with standard EIS makes it unsuitable for rapid on-line impedance measurements. Alternative methods that take a shorter time have therefore been proposed. This paper compares the spectra obtained by Harmonic Compensated Synchronous Detection (HCSD) broadband signal technique with EIS and a custom Broadband Impedance Spectroscopy (BIS) technique at different DC bias currents which mimic a real time load. The test cells are industry standard Nickel-Cobalt and Manganese Oxide (NCM) lithium-ion cells. The BIS technique is similar to HSCD in the selection of frequencies however the amplitude of the excitation broadband signal is varied to match the impedance magnitude response of the cell. Also, parameter extraction is performed on both EIS and BIS for fault detection purposes.
Prevalence of suicide attempt in individuals with major depressive disorder: a meta-analysis of observational surveys (2018)

This meta-analysis confirmed that SA was common in individuals with MDD across the world. Careful screening and appropriate interventions should be implemented for SA in the MDD population.
Biconical Fiber Taper Sensors (2006)

We present several simple sensitive fiber-optics-based sensors that utilize a biconical fiber taper. A displacement sensor with 100-nm accuracy, a temperature monitor with sensitivity DeltaT~1degC, and a refractive-index sensor capable of measuring Deltan~1.42times10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-5</sup> are demonstrated using tapers made from a standard single-mode fiber
Exploring search results with Envision (1997)

Envision is a multimedia digital library of computer science literature, with full-text searching and full-content retrieval capabilities. The Envision system is noteworthy for two characteristics: 1) the high quality of the search results returned by our free text search system and 2) a highly usable user interface that provides powerful information visualization facilities, enabling users explore patterns in the literature, changing the display as their interests change.
Controls for space structures (1991)

Assembly and operation of large space structures (LSS) in orbit will require robot-assisted docking and berthing of partially-assembled structures. These operations require new solutions to the problems of controls. This is true because of large transient and persistent disturbances, controller-structure interaction with unmodeled modes, poorly known structure parameters, slow actuator/sensor dynamical behavior, and excitation of nonlinear structure vibrations during control and assembly. For on-orbit assembly, controllers must start with finite element models of LSS and adapt on line to the best operating points, without compromising stability. This is not easy to do, since there are often unmodeled dynamic interactions between the controller and the structure. The indirect adaptive controllers are based on parameter estimation. Due to the large number of modes in LSS, this approach leads to very high-order control schemes with consequent poor stability and performance. In contrast, direct model reference adaptive controllers operate to force the LSS to track the desirable behavior of a chosen model. These schemes produce simple control algorithms which are easy to implement on line. One problem with their use for LSS has been that the model must be the same dimension as the LSS - i.e., quite large. A control theory based on the command generator tracker (CGT) ideas of Sobel, Mabins, Kaufman and Wen, Balas to obtain very low-order models based on adaptive algorithms was developed. Closed-loop stability for both finite element models and distributed parameter models of LSS was proved. In addition, successful numerical simulations on several LSS databases were obtained. An adaptive controller based on our theory was also implemented on a flexible robotic manipulator at Martin Marietta Astronautics. Computation schemes for controller-structure interaction with unmodeled modes, the residual mode filters or RMF, were developed. The RMF theory was modified to compensate slow actuator/sensor dynamics. These new ideas are being applied to LSS simulations to demonstrate the ease with which one can incorporate slow actuator/sensor effects into our design. It was also shown that residual mode filter compensation can be modified for small nonlinearities to produce exponentially stable closed-loop control. A theory for disturbance accommodating controllers based on reduced order models of structures was developed, and stability results for these controllers in closed-loop with large-scale finite element models of structures were obtained.
p63 and the epithelial stem cell: more than status quo? (2004)

The discovery of p63, the most ancient member of the p53 family (for review, see Yang et al. 2002), was soon followed by back-to-back reports of a remarkable phenotype of mice lacking this gene: They die perinatally due to the absence of a large number of epithelial structures including skin, breast, prostate, and urothelia, among others (Mills et al. 1999; Yang et al. 1999). Despite the contemporaneous nature of these publications, they expressed profound disagreement regarding the function of p63, as reflected in the mouse mutants. Mills et al. (1999) argued that p63 was essential for the commitment of a simple ectoderm to epidermal lineages, whereas Yang et al. (1999) argued that commitment and differentiation of the ectoderm were essentially intact in these mice, and that what was defective was the “proliferative potential” of the epithelial stem cells (Fig. 1). Principals from the first group have now addressed this problem from fundamentally different angles and have proposed new and unexpected functions of the p63 gene in epithelial commitment, maintenance, and differentiation (Koster et al. 2004).
Trust in and use of automation: their dependence on occurrence patterns of malfunctions (2003)

The dynamics of trust in and use of automation are shown to depend on the occurrence patterns of malfunctions. Two experiments have been conducted as part of this study. The first experiment compared the effects of two typical occurrence patterns, continuous and discrete. The second experiment analyzed the effects of the combination of the two malfunction occurrence patterns. Several analyses were performed and the following findings were obtained. If continuous malfunctions occur, operator trust is reduced significantly, and eventually the operator does not rely on the automation, even under circumstances that are easy for the automation to handle. The longer the continuity, the longer this effect lasts. In contrast, discrete malfunctioning does not cause a significant decline in the operator's level of trust. A single malfunction or a small number of discrete malfunctions causes that some operators not to rely on the automation when the operation is difficult for the automation. However, the level of trust returns quickly under normal operating conditions. As operators gradually experience more individual malfunctions, they appear to become less sensitive to the malfunctioning.
A Technique for Web Page Ranking by Applying Reinforcement Learning (2016)

Ranking of site pages is for showing important web pages to client inquiry it is a one of the essential issue in any web search index tool. Today's need is to get significant data to client inquiry. Importance of web pages is depending on interest of users. There are two ranking algorithm is utilized to demonstrate the current raking framework. One is page rank and another is BM25 calculation. Reinforcement learning strategy learns from every connection with dynamic environment. In this paper Reinforcement learning (RL) ranking algorithm is proposed. In this learner is specialist who learns through interactopm with dynamic environment and gets reward of an activity performed. Every site page is considered as a state and fundamental point is to discover score of website page. Score of website pages is identified with number of out connections from current website page .Rank scores in RL rank as considered in recursive way. Along these lines we can enhance outcomes with help of RL method in ranking algorithm.
Dynamic modulation of electronic properties of graphene by localized carbon doping using focused electron beam induced deposition (2015)

We report on the first demonstration of controllable carbon doping of graphene to engineer local electronic properties of a graphene conduction channel using focused electron beam induced deposition (FEBID). Electrical measurements indicate that an "n-p-n" junction on graphene conduction channel is formed by partial carbon deposition near the source and drain metal contacts by low energy (<50 eV) secondary electrons due to inelastic collisions of long range backscattered primary electrons generated from a low dose of high energy (25 keV) electron beam (1 × 10(18) e(-) per cm(2)). Detailed AFM imaging provides direct evidence of the new mechanism responsible for dynamic evolution of the locally varying graphene doping. The FEBID carbon atoms, which are physisorbed and weakly bound to graphene, diffuse towards the middle of graphene conduction channel due to their surface chemical potential gradient, resulting in negative shift of Dirac voltage. Increasing a primary electron dose to 1 × 10(19) e(-) per cm(2) results in a significant increase of carbon deposition, such that it covers the entire graphene conduction channel at high surface density, leading to n-doping of graphene channel. Collectively, these findings establish a unique capability of FEBID technique to dynamically modulate the doping state of graphene, thus enabling a new route to resist-free, "direct-write" functional patterning of graphene-based electronic devices with potential for on-demand re-configurability.
Single-laser high-selectivity bidirectional transmission system for local-area-network applications (1987)

Bidirectional transmission at 90Mbit/s over 30 km of fibre using a single laser source is demonstrated. At the subscriber end, a narrowband resonant optical amplifier serves not only as amplifier, but also as detector, modulator and optical filter. The coherent Rayleigh noise, encountered in previous single-laser bidirectional systems, is eliminated by using a subcarrier modulation scheme. The demonstrated capacity is more than an order of magnitude improvement over similar systems.
Über Carbonium‐Ionen, I. Substituierte Phenyltropylium‐Ionen (1964)

Abstract Darstellung, p K ‐Werte und Spektren von im Benzolring substituierten Phenyl‐trophylium‐perchloraten (III) werden beschrieben, sowie eine Deutung der Ergebnisse mittels des Hückelschen LCAO‐Modells für III, R = H, gegeben.
Erythroid Progenitor Cells Expanded from Peripheral Blood without Mobilization or Preselection: Molecular Characteristics and Functional Competence (2010)

This approach yielding EPC directly from unmanipulated peripheral blood is gratifyingly robust and will facilitate the study of myeloid infectious agents such as the B19 virus, as well as the examination of erythropoiesis and its cellular and molecular mechanisms.
Silicon-on-insulator optical rib waveguide loss and mode characteristics (1994)

Optical rib waveguides with rib heights of 3.17 and 7.67 microns with various widths have been formed in separation by implantation of oxygen (SIMOX) based silicon-on-insulator (SOI) structures. The effect of waveguide rib etch depth, width, and interface roughness on loss and mode characteristics have been studied at wavelengths of 1.15 and 1.523 microns. The experimental results support the hypothesis that certain rib dimensions can lead to single mode SOI waveguides even though planar SOI waveguides of similar multimicron dimension are not single mode. Mode loss was found to be strongly dependent on interface roughness and mode confinement.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Identification of a minus end-specific microtubule-associated protein located at the mitotic poles in cultured mammalian cells. (1991)

A mitosis-specific centrosomal component was studied with a human autoantibody, SP-H, which immunostained mitotic poles and interphase nuclei, and a single polypeptide with an apparent molecular mass of 200 to 230 kDa in various lines of cultured cells. Early mitotic PtK1 cells treated with 10 micrograms/ml taxol contained short bundles of parallel microtubules around the nuclei and cell periphery. At the time of nuclear envelope breakdown, the nuclear staining by SP-H disappeared, and the antigen relocated at one end of the parallel microtubules. Determination of the microtubule polarity demonstrated that the peripheral bundles of microtubules were arranged with their minus ends directed to the cell periphery, and the SP-H antigen was specifically localized at this end. Parallel microtubules were further rearranged first into a fan-like shape, and then into completely radial structures as observed by De Brabander et al. (Int. Rev. Cytol. 101, 215-274 (1986)). The SP-H antigen was always detected at the minus end domain of such microtubule-containing structures during the transformation process. When microtubules were depolymerized by nocodazole treatment, the SP-H antigen appeared as discrete cytoplasmic foci, suggesting that the antigen may self-associate, forming multimeric structures. The antigen in mitotic HeLa cell extracts co-sedimented in vitro with exogenous brain microtubules. The microtubule-associated SP-H antigen was insensitive to ATP extraction, but was removed from microtubules by treatment with 0.5 M NaCl. Thus the 200 to 230 kDa centrosomal component could be a novel microtubule-associated protein with affinity for the minus end of microtubules, and it might play an essential role in the organization of spindle poles during mitosis.
Asymmetric synthesis of amino sugars. Part 2.† A novel versatile approach to the chiral non-racemic synthesis of 2-amino-2-deoxy sugars. Preparation of L-glucosamine, L-mannosamine and L-talosamine derivatives (2000)

A novel methodology for asymmetric synthesis of 2-amino-2-deoxy sugars is developed, starting from readily available chiral building block 1 and 2,3-O-isopropylideneglyceraldehyde 2, via Julia olefination and subsequent dihydroxylation as key steps. The versatility of this approach is exemplified by the preparation of L-glucosamine, L-mannosamine and L-talosamine derivatives in highly diastereometrically pure forms.
Voltage Stability Enhancement Via Model Predictive Control of Load (2006)

Impending voltage collapse can often be avoided by appropriate control of loads. However the traditional form of load control (shedding) is unpopular due to the resulting consumer disruption. Advances in communications and computer systems allow more selective load control though. Individual loads that are sacrificeable in the short-term can be switched with minimal consumer disruption. The paper considers the use of such non-disruptive load control for improving voltage stability. A control strategy that is based on model predictive control (MPC) is proposed. MPC utilizes an internal model to predict system dynamic behaviour over a finite horizon. Control decisions are based on optimizing that predicted response. MPC is a discrete- time form of control, so inaccuracies in predicted behaviour are corrected at the next control interval. A standard 10 bus voltage collapse example is used to illustrate this control strategy.
The Interaction of Phospholipid Membranes and Detergents with Glutamate Dehydrogenase (1977)

The interaction of beef liver glutamate dehydrogenase with cardiolipin from both beef liver mitochondria and beef heart mitochondria, with phosphatidylcholine from both beef liver mitochondria and egg‐yolk, and with beef brain phosphatidylserine was investigated by steady‐state kinetic methods. The phosphatidylcholine did not inhibit the enzyme under a wide range of conditions. The cardiolipins and phosphatidylserine inhibited the enzyme. The inhibition by these lipids was found to diminish with time if the lipids were prepared and the reaction was studied in either phosphate or Tris buffers, but in zwitterionic buffers these lipid brought about a rapid, reversible inhibition which remained stable with time for at least 150 min. The kinetic type of the inhibition was difficult to determine because of variation between lipid sonicates. Complex mixed types of inhibition were found with cardiolipin, and with phosphatidylserine the inhibition approximated to a non‐competitive interaction with K i(app) values varying between (0.9–6.1) × 10 −6 M. The extent of inhibition decreased with increasing pH and with increasing ionic strength. Basic proteins, such as cytochrome c , show a higher affinity for the anionic membranes and can dissociate the enzyme · lipid complexes. Cosonicates of the cardiolipin and phosphatidylcholine inhibited the enzyme, the extent of inhibition increasing in proportion to the amount of acidic lipid. Sodium dodecylsulphate causes a time‐dependent inhibition of the enzyme. The kinetics of this effect and its variation with detergent concentration were studied. The relationship of these observations to the structure and function of the enzyme is discussed. It is suggested that their apparent regulation of the enzyme by oestrogens and other small molecules is due to their binding in vitro at sites on the enzyme designed for binding cardiolipin, when the enzyme is functioning in vivo . The association of the enzyme oligomer in vitro may, for similar reasons, be an artifact.
Determining Underlying Characteristics of Supplier Evaluation Model: A Quantitative Empirical Research (2007)

Rapid changes in the business environment, driven by competitive pressures and business complexity, present challenges that organizations cannot address without the support of their suppliers. In the past decades, performance evaluation factors such as quality, delivery, and price have been widely used by organizations to measure their suppliers' performance. Traditional supplier performance dimensions now considered to be only single dimensional, and not guarantee long term success of an organization. Use of internationally recognized standards and guidelines such as ISO 9000, MBNQA are recommended to be feasible for supplier Quality Management System evaluation in the literature. However, their effectiveness as a supplier evaluation tool has not been empirically tested. In this dissertation, relationships between Organization Performance dimensions and QMS criteria using MBNQA dimensions are explored. Organizational Performance questionnaire that is developed by the researcher is used to determine the Performance Level of the supplier organizations. QMS performance of the supplier organizations is measured using a questionnaire developed at the University of Missouri-Rolla by Wu (1996). Suppliers of an OEM company in Virginia are surveyed. The regression analysis and canonical correlation analysis results of this dissertation show that there are relationships among the QMS dimensions using MBNQA criteria and Organizational Performance dimensions. The relationships are complex and often counteractive. Relationship models between QMS criteria and organizational Performance Dimensions are developed for the organizations participated in the study and finally, conclusions are drawn and recommendations made for future research.
A novel on-line self-learning state-of-charge estimation of battery management system for hybrid electric vehicle (2009)

State-of-charge (SOC) estimation is the most difficult problem in battery management system, which is one of the key component of electric vehicle and hybrid electric vehicle. Suffered from the non-zero mean noises in practice, the conventional current integral and Kalman filter estimation methods can not achieve the required accuracy, even causing nonconvergent results. According to the SOC truth value obtained by open-circuit-voltage Vs. SOC curve at each vehicle start time, we deduce a mathematic formula to calculate the mean values of system noises and then a self-learning strategy is proposed to improve the current integral and Kalman filter methods in colored noise environment. The simulation experiment based on a typical battery model verifies the availability and efficiency of proposed strategy.