gebhart/patrepeval huggingface dataset:
Multiple-Model Linear Kalman Filter Framework for Unpredictable Signals (2014)

This paper presents sensor fusion techniques for systems where the process model is a function of the human input and, therefore, unpredictable. The system consists of free and user-driven motion regimes. The free regime can be modeled as a damped sinusoidal waveform, while the driven regime and the transitions between regimes do not respect any sort of probability, pattern, or sequence. The quantity of interest is the deflection of a clamped beam, measured using three sensor technologies: 1) strain gages; 2) infrared; and 3) Hall effect sensors. Experiments using infrared-based motion capture as reference measuring system show that: 1) none of the sensors present optimal performance for both motion regimes and 2) measurement errors of each sensor differ significantly according to the motion regime. These findings suggest the use of sensor fusion techniques with low processing cost, compatible with real-time embedded applications. Our solution is based on a multiple-model linear Kalman filter in combination with motion segmentation. The motion segmentation discriminates gestures according to the knowledge of their process model. This allows a more predictive estimation during periods of free motion, while relying on a less predictive approach for unknown user-driven signals. In addition, we propose a framework on evaluation and selection of process models for unpredictable signals. The implementation was compared with single-sensor and single-model filter designs. Results based on human subject data reveal that the proposed method improves the error covariance of the estimate by a factor of 2.2 for driven motions and 12.7 for free motions in comparison with single-sensor filter design.
Robotic Navigation Autonomy for Subretinal Injection via Intelligent Real-Time Virtual iOCT Volume Slicing (2023)

In the last decade, various robotic platforms have been introduced that could support delicate retinal surgeries. Concurrently, to provide semantic understanding of the surgical area, recent advances have enabled microscope-integrated intraoperative Optical Coherent Tomography (iOCT) with high-resolution 3D imaging at near video rate. The combination of robotics and semantic understanding enables task autonomy in robotic retinal surgery, such as for subretinal injection. This procedure requires precise needle insertion for best treatment outcomes. However, merging robotic systems with iOCT intro-duces new challenges. These include, but are not limited to high demands on data processing rates and dynamic registration of these systems during the procedure. In this work, we propose a framework for autonomous robotic navigation for subretinal injection, based on intelligent real-time processing of iOCT volumes. Our method consists of an instrument pose estimation method, an online registration between the robotic and the iOCT system, and trajectory planning tailored for navigation to an injection target. We also introduce intelligent virtual B-scans, a volume slicing approach for rapid instrument pose estimation, which is enabled by Convolutional Neural Networks (CNNs). Our experiments on ex-vivo porcine eyes demonstrate the precision and repeatability of the method. Finally, we discuss identified challenges in this work and suggest potential solutions to further the development of such systems.
The double-orifice technique for mitral valve reconstruction: predictors of postoperative outcome (2001)

This study suggests that preoperative factors, like pulmonary hypertension and severe left atrial dilatation, may predict late DO failure. Our findings also indicate that pericardial annuloplasty may negatively influence mitral valve reconstruction at long term when DO is employed in MVR.
Pediatric posterior reversible encephalopathy syndrome presenting with isolated cerebellar edema and obstructive hydrocephalus (2014)

In this report, the authors describe the case of a teenage boy who presented with hypertensive emergency, posterior reversible encephalopathy syndrome, and hydrocephalus due to fourth ventricle outlet obstruction. Posterior reversible encephalopathy syndrome is a well-characterized but uncommon syndrome in children that is generally triggered by severe hypertension. The unusual clinical picture of this patient, who had isolated cerebellar edema leading to obstructive hydrocephalus, has been rarely described in children.
Tuning Hydrogen Oxidation and Oxygen Reduction Reaction in Alloy Electrocatalysts for Fuel Cells (2012)

Abstract not Available.
Community-based heuristic routing protocol for disrupted social network (2013)

Frequent change in the topology of a disrupted social network is a barrier in using traditional routing protocols. One way to deal with this problem is to collect mobility profiles of nodes and to utilize them for future routing decisions. The solution however lacks scalability since it is difficult for nodes to keep updated information of the whole network. The paper thus devises a scalable scheme that exploits the limited social circles of the mobile device owners; i.e. it breaks network into social communities and employs a fine-grained heuristic routing scheme for intra-community communication. Moreover the paper specifies a simple method for identification of bridging nodes to transfer message to destination lying outside the community. The idea paper is expected to bring a near to optimal routing solution for disrupted social networks.
High-order harmonic generation of picosecond radiation of moderate intensity in laser plasma (2012)

The results of investigations into the generation of highorder harmonics (up to the 21st order) of picosecond (τ = 38 ps) Nd : YAG laser radiation in the plasma produced by laser ablation of metal and carbon-containing material surfaces are presented. We demonstrate the feasibility of generating high-order harmonics in the vacuum ultraviolet spectral range (with radiation wavelengths shorter than 120 nm) in plasmas with an efficiency of ∼0.7 × 10-4. In carbon-containing plasma, the 7th harmonic intensity exceeded that of the 5th one by a factor of seven.
National Institute for Health Research (NIHR) Health Technology Assessment (HTA) Programme research funding and UK burden of disease (2018)

The HTA Programme spend, adjusted for other relevant funders, broadly matches disease burden in the UK; no diseases are being neglected.
Predictors for Failure of Pneumocystis carinii Pneumonia Prophylaxis (1995)

Objective. —To identify clinical and epidemiological factors associated with failure of Pneumocystis carinii pneumonia (PCP) prophylaxis in those receiving primary and secondary prophylaxis. Design. —Longitudinal cohort study of participants infected with human immunodeficiency virus type 1 in the Multicenter AIDS Cohort Study who used PCP prophylaxis regimens after their T-helper lymphocyte counts had decreased to less than 0.200×10 9 /L (200/μL). Main Outcome Measure. —Occurrence or recurrence of PCP. Results. —A total of 476 participants reported taking one or more of the following regimens: trimethoprim-sulfamethoxazole (TMP-SMX), dapsone, and/or aerosolized pentamidine—367 as primary prophylaxis and 109 as secondary prophylaxis after a previous episode of PCP. A total of 92 (20%) developed PCP despite prophylaxis. The mean failure rates per person-year of follow-up were 16.0% for those receiving primary prophylaxis and 12.1% for those receiving secondary prophylaxis ( P =.19). Median times to death after initiation of primary or secondary prophylaxis were 2.0 and 1.2 years, respectively. The main predictor for failure of PCP prophylaxis was profound T-helper lymphocytopenia; 86% of failures occurred after T-helper cell counts decreased to less than 0.075×10 9 /L and 76% occurred after counts decreased to less than 0.050×10 9 /L. In multivariate time-dependent analysis, when compared with counts between 0.100×10 9 /L and 0.200×100 9 /L, the risk ratio for failure with counts less than 0.050×10 9 /L was 2.90 ( P P =.01). Use of TMP-SMX as the prophylaxis regimen was protective but did not eliminate failure (ie, a time-dependent risk ratio of 0.55; P =.03). Conclusions. —These findings strongly support identifying improved methods of PCP prophylaxis once T-helper cell counts decrease to less than 0.075×10 9 /L or 0.100×10 9 /L. Given this severe degree of immunosuppression, an inherently more effective regimen against P carinii is required. ( JAMA . 1995;273:1197-1202)
Distributed detection for cellular CDMA (1996)

A distributed scheme is proposed for a cellular code division multiple access system in which each base station is served by three widely spaced sectored antennas, with each antenna site performing separate detection. At worst the error probability achieved at the base station is always equal to the minimum of those at each antenna site. With coherent signalling employed, the distributed detection has significantly increased system capacity over simple sectored antennas.
Quantification of prognostic immune cell markers in colorectal cancer using whole slide imaging tumor maps. (2010)

In the future, spatial marker signatures could contribute to individual patient classifiers.
Clinical Review of the Zweymuller Femoral Stem (2011)

This review summarizes published literature from a range of reputable sources regarding hip prostheses (stems) utilized currently in cementless Total Hip Arthroplasty. The critical review of published clinical studies shows Zweymuller style (Alloclassic and SL-Plus) stems in all critical characteristics.Since the introduction of cementless total hip arthroplasty in the 1970s, a range of design philosophies for femoral and acetabular components have demonstrated variable clinical success1,3. Recently cementless components have been yielding clinical results on par and in some cases even surpassing their cemented predecessors2,4,6. As a result, cementless THA is gaining in popularity1,7. The short-term results of four of the best cementless femoral components recorded in the Norwegian Arthroplasty Register as described by Havelin et al, included the Corail, lMT, Profile and Zweymuller stems with revision for loosening &lt;1% at 4.5 years which was comparable to cemented counterparts.
Structural mechanism for bacterial oxidation of oceanic trimethylamine into trimethylamine N‐oxide (2016)

Trimethylamine (TMA) and trimethylamine N-oxide (TMAO) are widespread in the ocean and are important nitrogen source for bacteria. TMA monooxygenase (Tmm), a bacterial flavin-containing monooxygenase (FMO), is found widespread in marine bacteria and is responsible for converting TMA to TMAO. However, the molecular mechanism of TMA oxygenation by Tmm has not been explained. Here, we determined the crystal structures of two reaction intermediates of a marine bacterial Tmm (RnTmm) and elucidated the catalytic mechanism of TMA oxidation by RnTmm. The catalytic process of Tmm consists of a reductive half-reaction and an oxidative half-reaction. In the reductive half-reaction, FAD is reduced and a C4a-hydroperoxyflavin intermediate forms. In the oxidative half-reaction, this intermediate attracts TMA through electronic interactions. After TMA binding, NADP<sup>+</sup> bends and interacts with D317, shutting off the entrance to create a protected micro-environment for catalysis and exposing C4a-hydroperoxyflavin to TMA for oxidation. Sequence analysis suggests that the proposed catalytic mechanism is common for bacterial Tmms. These findings reveal the catalytic process of TMA oxidation by marine bacterial Tmm and first show that NADP<sup>+</sup> undergoes a conformational change in the oxidative half-reaction of FMOs.
Late Stage Freiberg Infraction in a Division I Collegiate Tennis Player. (2016)

Surgical intervention is required for definitive treatment of late stage Freiberg infraction. Conservative treatment can be effective in prolonging the athlete's career.
The Binding of Organic Ions by Proteins. Interactions with Cations (1952)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Binding of Organic Ions by Proteins. Interactions with CationsIrving M. Klotz, Edmund W. Gelewitz, and Jean M. UrquhartCite this: J. Am. Chem. Soc. 1952, 74, 1, 209–211Publication Date (Print):January 1, 1952Publication History Published online1 May 2002Published inissue 1 January 1952https://doi.org/10.1021/ja01121a053RIGHTS & PERMISSIONSArticle Views107Altmetric-Citations17LEARN 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 InReddit PDF (354 KB) Get e-Alerts Get e-Alerts
NUMERICAL MODELING OF AN OUTOKUMPU FLOTATION DEVICE (2003)

This paper reviews the detailed hydrodynamics of Outokumpu flotation cells by using CFD modeling. Scope of this work was to build an industrial tool, based on CFD, for modeling flow field and solids distribution in flotation cell without air feed. Selection of tested and validated fundamental methods for achieving optimal cycle for analysis was also objective. Preprocessing, solver time and postprocessing for testing design layout with CFD should be done in less than one week. The combination of basic approaches was chosen by simulating the single phase (l) flow field in process and laboratory scale flotation cells with different type and size computational grids and principal methods. Comparisons between velocity and turbulence results measured using the LDV (Laser Doppler Velocimetry) technique and CFD modeling were done. Also mixing power and liquid phase mixing time calculations were compared to validating measurements.
Amino acid sequence of toxin XI of the scorpion Buthus occitanus tunetanus. Evidence of a mutation having an important effect upon neurotoxic activity (1987)

The complete amino acid sequence of toxin XI of the North African scorpion Buthus occitanus tunetanus has been elucidated by automatic sequencing of the reduced and alkylated toxin and of the peptides obtained after tryptic cleavage restricted to arginyl bonds. This toxin is structurally homologous to toxin II of Androctonus australis Hector, the most active among the alpha-toxins, but is far less potent, both in vivo and in vitro. This work points out 12 mutations, many of which are conservative. Nevertheless, the most striking difference is the replacement of the lysine residue at position 58, known to be important in the activity of AaH toxin II, by a valine residue. Thus, it seems that the presence of a positive charge at this location facilitates the interactions between the receptor on the sodium channel and the alpha-type toxins.
Fast Optimal Algorithms for Computing All the Repeats in a String (2008)

Given a string x = x[1..n] on an alphabet of size α, and a threshold pmin ≥ 1, we first describe a new algorithm PSY1 that, based on suffix array construction, computes all the complete nonextendible repeats in x of length p ≥ pmin. PSY1 executes in Θ(n) time independent of alphabet size and is an order of magnitude faster than the two other algorithms previously proposed for this problem. Second, we describe a new fast algorithm PSY2 for computing all complete supernonextendible repeats in x that also executes in Θ(n) time independent of alphabet size, thus asymptotically faster than methods previously proposed. Both algorithms require 9n bytes of storage, including preprocessing (with a minor caveat for PSY1). We conclude with a brief discussion of applications to bioinformatics and data compression
Anti-inflammatory effects of montelukast on smoke-induced lung injury in rats (2010)

&#x0D; &#x0D; &#x0D; Aim: To evaluate the effects of montelukast in smoke- induced lung injury.Methods: 28 Wistar-Albino rats were enrolled into 4 groups with 7 rats per group. The healthy control group was exposed to fresh air while all rats in the 3 experimental groups were exposed to cigarette smoke for 20 weeks for 2 hours per day. After histopathological verification of smoke induced lung injury, montelukast (0.1 mg/kg) dissolved in Na2CO3 was given in one group (MON), Na2CO3 only was given in another group (MON control) and placebo was injected in the third group (COPD control) intraperitoneally for 21 days. At the end of this period blood samples were obtained for serum TNF-α assessment and light and electron microscopy analy- ses were performed on the lung tissues of sacrificed rats.&#x0D; Results: Serum TNF-α levels in the MON group were signifi- cantly lower than in the MON control and COPD control groups (38.84 ± 4.9 pg/ml, 77.5 ± 5.8 pg/ml and 79.2 ± 6.9 pg/ml respectively, p &lt; 0.05). Furthermore there was no sta- tistically significant difference between the MON group and healthy controls with respect to serum TNF-α levels (38.84 ± 4.9 pg/ml vs. 29.5 ± 3.6 pg/ml, p &gt; 0.05). Light and electron microscopic evaluation of the lungs demonstrated that the total histopathological damage score of the lung samples was significantly lower in the MON group than in MON controls and COPD controls (5.14 ± 0.5, 8.4 ± 0.6 and 8.7 ± 0.4 respec- tively, p &lt; 0.05), while there was no significant difference between the MON group and healthy controls (5.1 ± 0.6 vs 2.3 ± 0.2, p &gt; 0.05).&#x0D; Conclusion: These findings suggest that montelukast might have a protective effect on smoke-induced lung injury in rats both from a histopathological and inflammatory point of view.&#x0D; &#x0D; &#x0D; &#x0D;
A camera to record underwater particles using simultaneous in-line and off-axis hologrammetry and its associated replay facility (2002)

Summary form only given. The HOLOMAR collaboration have designed and built an underwater holographic camera specifically designed to record marine plankton to a maximum depth of 100 m below sea level. The camera records holograms using both the in-line and the off-axis techniques simultaneously. The laser is a specially designed frequency doubled Nd-YAG laser, using a passive Q-switch and LBO doubler. It produces a single pulse with an energy of 700 mJ and duration of less than 10 ns. The oscillator-amplifier design results in a single longitudinal mode with a measured coherence length of over 2 m. Considerable care was taken in the optical design to minimise the effects of distortion arising from the change in refractive index. The computer controlled, fully automated replay machine and image processing and analysis systems allow large amounts of data to be extracted from the holograms without manual intervention.
Whole-body lymphoscintigraphy using transmission scans. (2002)

The anatomic location of the sentinel lymph node is seen more easily on whole-body images, both anterior transmission and posterior transmission, than on planar static images. Whole-body emission and transmission imaging decreased scanning time and thus improved patient comfort and throughput. Technologists received less radiation exposure when handling the (57)Co source only twice during whole-body imaging, as opposed to several times during static imaging.
Topological Hourglass Dirac Semimetal in the Nonpolar Phase of Ag2BiO3 (2018)

Materials with tunable charge and lattice degrees of freedom provide excellent platforms for investigating multiple phases that can be controlled via external stimuli. We show how the charge-ordered ferroelectric oxide Ag_{2}BiO_{3}, which has been realized experimentally, presents a unique exemplar of a metal-insulator transition under an external electric field. Our first-principles calculations, combined with a symmetry analysis, reveal the presence of a nearly ideal hourglass-Dirac-semimetal state in the nonpolar structure of Ag_{2}BiO_{3}. The low-energy band structure consists of two hourglasslike nodal lines located on two mutually orthogonal glide-mirror planes in the absence of spin-orbit coupling (SOC) effects. These lines cross at a common point and form an interlinked chainlike structure, which extends beyond the first Brillouin zone. Inclusion of the SOC opens a small gap in the nodal lines and results in two symmetry-enforced hourglasslike Dirac points on the C[over ˜]_{2y} screw rotation axis. Our results indicate that Ag_{2}BiO_{3} will provide an ideal platform for exploring the ferroelectric-semiconductor to Dirac-semimetal transition by the application of an external electric field.
Asymmetric gain-saturated spectrum in one-pump fiber optical parametric amplifiers (2011)

The effect of third-order dispersion on the saturated-gain in fiber optical parametric amplifiers is experimentally demonstrated. A possible interpretation in terms of dispersive waves, which change the power transfer to the signal, is presented.
Electrochemical chlorination of n-pentane on a graphite water-repellent electrode (1987)

During electrochemical chlorination of hydrocarbons the stages of production of chlorine and of chloro derivatives are combined in the cell. Considerable experience of the use of unsaturated hydrocarbons for production of dichloro derivatives and chlorohydrins and for utilization of waste HCl has now been gained. It has been shown that in the case of poorly soluble original components the process can be conducted with high efficiency with the use of water-repellent electrodes; this was confirmed by chlorination of n-butane, n-pentane, and n-hexane on graphite water-repellent electrodes. In this paper they report a study of the dependence of the current efficiency and of the partial current densities of electrochemical chlorination of n-pentane on a graphite water-repellent electrode, on the potential of the process.
Growth of Epitaxial Oxide Thin Films on Graphene (2016)

The transfer process of graphene onto the surface of oxide substrates is well known. However, for many devices, we require high quality oxide thin films on the surface of graphene. This step is not understood. It is not clear why the oxide should adopt the epitaxy of the underlying oxide layer when it is deposited on graphene where there is no lattice match. To date there has been no explanation or suggestion of mechanisms which clarify this step. Here we show a mechanism, supported by first principles simulation and structural characterisation results, for the growth of oxide thin films on graphene. We describe the growth of epitaxial SrTiO3 (STO) thin films on a graphene and show that local defects in the graphene layer (e.g. grain boundaries) act as bridge-pillar spots that enable the epitaxial growth of STO thin films on the surface of the graphene layer. This study, and in particular the suggestion of a mechanism for epitaxial growth of oxides on graphene, offers new directions to exploit the development of oxide/graphene multilayer structures and devices.
Instability of an Electrooptic Bistable Device with a Delayed Feedback (1982)

Instability of an electrooptic bistable device with a delayed feedback voltage is discussed theoretically and experimentally. The effects of optical input power, feedback gain, biasing phase retardation, and delay on the instability are described, and the sustained oscillatory optical output is generated under the unstable condition. A quasi-chaotic behavior of the device is also shown.