gebhart/patrepeval huggingface dataset:
Advanced multiple objects tracking by fusing radar and image sensor data - Application on a case study. (2008)

The aim of this paper is to present a multiple object tracking data fusion technique, which fuses radar, image, and ego vehicle odometry. The data are fused at a high level, which leads to reliable and stable tracking results providing also additional features as width estimation and the detection of stationary objects. A ldquorealrdquo application of these algorithms is illustrated on a specific use-case: the SASPENCE system, developed inside the Integrated Project PReVENT. The principle results show that such a data-fusion technique is actually able to improve the SASPENCE performances, especially in terms of extension of operative scenarios, a basic issue for the system functionality.
Vibration in Neurorehabilitation: a narrative review (2017)

Abstract 
Over the last decade, have been extensively investigated vibrations applied to the physical and rehabilitation medicine, including the neurorehabilitation, a field where giant steps have been taken in understanding both pathophysiology of the diseases and the influence of vibrational energy on the nervous system.
The purpose of this review is to understand the point at which knowledge is on this topic, what kind of vibration and what modes of applications are used in the rehabilitation of subjects suffering from pathologies affecting the nervous system.
Studies of the last 36 months available on Ovid MEDLINE, PEDro, PubMed Central have been consulted.
The review has shown a positive impact, particularly for focused vibration, in the treatment of neurological disorders.
Modelling and simulation of indoor radio channels (2002)

Starting from the physical propagation mechanisms in indoor environments, a channel model for wideband, indoor propagation channels is developed. The model is flexible enough to accommodate various parameters such as system bandwidth, spatial distribution of scatterers, and maximum delay of propagation paths. A software simulation tool allows the generation of samples of the time-invariant complex channel impulse response. These can be used to evaluate and optimize the system performance by software simulation. In addition to the software simulator, a hardware channel simulator is built. It provides the possibility for real-time tests of radio receivers under realistic, yet well defined, channel conditions.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
The apparent coupling between synthesis and posttranslational modification of Escherichia coli acyl carrier protein is due to inhibition of amino acid biosynthesis (1996)

Acyl carrier protein (ACP) is modified on serine 36 by the covalent posttranslational attachment of 4'-phosphopantetheine from coenzyme A (CoA), and this modification is required for lipid biosynthesis. Jackowski and Rock (J. Biol. Chem 258:15186-15191, 1983) reported that upon depletion of the CoA pool by starvation for a CoA precursor, no accumulation of the unmodified form of ACP (apo-ACP) was detected. We report that this lack of apo-ACP accumulation results from decreased translation of the acpP mRNAs because of the limitation of the synthesis of glutamate and other amino acids made directly from tricarboxylic acid cycle intermediates.
Improved Constant Envelope Multiuser Precoding for Massive MIMO Systems (2014)

This letter considers the constant envelope precoding method, proposed by Mohammed and Larsson, to minimize the multiuser interference (MUI) in a massive multiple-input multiple-output (MIMO) antenna system. To achieve promising performance for suppressing MUI, nevertheless, constant envelope precoding requires solving the intractable nonlinear least squares (NLS) problem of the transmit phase angles, which is non-convex and has multiple local minima. To tackle this, our approach is to use cross-entropy optimization (CEO) for solving the NLS problem of constant envelope precoding. Simulation results reveal that the CEO-optimized constant envelope precoding significantly outperforms the conventional gradient descent (GD) based constant envelope precoding and zero-forcing.
MR evaluation of neurovascular lesions after endovascular occlusion with detachable balloons. (1988)

Three patients with surgically inaccessible giant carotid aneurysms/pseudoaneurysms and one patient with carotid cavernous fistula had endovascular occlusion with detachable silicone balloons filled with Cholografin. MR was performed before the procedures in three cases and again 18 hr to 44 days after embolization in all four cases. The age-related changes of arterial thrombi, as well as the optimal timing and value of different pulse sequences in the noninvasive follow-up, were evaluated. Arterial thrombi have some characteristics in common with intracerebral hematomas, being isointense on T1-weighted spin-echo images during acute phase and subsequently acquiring hyperintense signals on both T1- and T2-weighted spin-echo images during the subacute and chronic phases. Additional observations are that (1) hyperacute (less than 24 hr old) thrombus is hyperintense on T2-weighted spin-echo sequences; (2) hemosiderin is less conspicuous in chronic intraluminal thrombi than in intracerebral hematomas of comparable size; and (3) thrombosis is initiated at a site remote from the apex of the aneurysm and then progresses centripetally. The Cholografin-filled balloon is hypointense to gray matter on T1-weighted spin-echo images and isointense to both hyperacute and chronic thrombus on T2-weighted spin-echo images. The optimal timing and sequence for MR follow-up of a thrombosed aneurysm with conventional spin-echo technique is beyond 7 days on T1-weighted spin-echo images. The in vivo appearance of Cholografin-filled silicone balloons does not change appreciably on T1- and T2-weighted spin-echo sequences up to 6 weeks if filled according to the manufacturer's specification.
Chronic administration of olanzapine affects Behavioral Satiety Sequence and feeding behavior in female mice. (2008)

The aim of the study was to assess the effects of chronic olanzapine (Ola) administration on feeding behavior. Although atypical antipsychotics (AAPs) have greatly improved the management of schizophrenia and extrapyramidal symptoms, substantial bodies of literature point out that most of these agents are highly related to a major risk of metabolic drawbacks, leading to dyslipidemia and obesity. Among these compounds, Ola is one of the more weight gain-inducing AAPs. In the present study, we analyzed the Behavioral Satiety Sequence (BSS) in female mice given a palatable diet (wet mash) and chronically administered Ola (0.75, 1.5, 3 mg/kg per os) for 36 days. The results showed that administration of the highest dose of Ola postponed the onset of satiation, as suggested by the rightward shift of the BSS. This effect was confirmed by an increase in the actual food intake by the Ola (3 mg/kg) mice. These results suggest that one of the possible mechanisms involved in AAPinduced weight gain is alteration of the hunger-satiety regulation in female mice. These findings are consistent with the hypothesis that enhanced food intake and diminished central sensitivity to satiation signaling may cooperate in promoting weight gain and metabolic dysregulation in rodents and patients taking antipsychotic medications.
k-Microscopy: resolution beyond the diffraction limit (2008)

We present a novel Fourier domain method for microscopic imaging - so-called k-microscopy - with lateral resolution independent of the detection numerical aperture. The concept is based on sample illumination by a lateral fringe-pattern of varying spatial frequency, which probes the lateral spatial frequency or k- spectrum of the sample structure. The illumination pattern is realized by interference of two collimated coherent beams. Wavelength tuning is employed for modulation of the fringe spacing. The uniqueness of the proposed system is that a single point detector is sufficient to collect the total light corresponding to a particular position in the sample k-space. By shifting the phase of the interference pattern, we get full access to the complex frequencies. An inverse Fourier transformation of the acquired band in the frequency- or k-space will reconstruct the sample. The resulting lateral resolution will be defined by the temporal coherence length associated with the detected light source spectrum as well as by the illumination angle. The feasibility of the concept has been demonstrated in 1D.
A Generalized Tree Matching Algorithm Considering Nested Lists for Web Data Extraction (2010)

This paper studies structured data extraction from Web pages. One of the effective methods is tree matching, which can detect template patterns from web pages used for extraction. However, one major limitation of existing tree matching algorithms is their inability to deal with embedded lists with repeated patterns. In the Web context, lists are everywhere, e.g., lists of products, jobs and publications. Due to the fact that lists in trees may have different lengths, the match score of the trees can be very low although they follow exactly the same template pattern. To make the matter worse, a list can have nested lists in it at any level. To solve this problem, existing research uses various heuristics to detect candidate lists first and then applies tree matching to generate data extraction patterns. This paper proposes a generalized tree matching algorithm by extending an existing tree matching algorithm with the ability to handle nested lists through a novel grammar generation algorithm. To the best of our knowledge, this is the first tree matching algorithm that is able to consider lists. In addition, it is well-known that there are two problem formulations for Web data extraction: (1) pattern generation based on multiple pages following the same template, and (2) pattern generation based on a single page containing lists of data instances following the same templates (each list may use a different template). These two problems are currently solved using different algorithms. The proposed (single) algorithm is able to solve both problems effectively. Extensive experiments show that the new algorithm outperforms the state-of-the-art existing systems for both problems considerably.
RETEST-development of a selective revalidation prototype environment for use in software maintenance (2002)

The authors examine problems associated with regression testing, giving particular attention to aspects concerning selective revalidation. They describe a prototype retesting environment called RETEST that will allow maintenance personnel to cope with revalidation procedures. It is noted that large amounts of time and computational resources are expended for revalidation and that the maintainers' view of this topic often lacks a sensible and systematic approach.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS) (2016)

Traditional finite-field-based Diffie-Hellman (DH) key exchange during
the Transport Layer Security (TLS) handshake suffers from a number of
security, interoperability, and efficiency shortcomings. These
shortcomings arise from lack of clarity about which DH group
parameters TLS servers should offer and clients should accept. This
document offers a solution to these shortcomings for compatible peers
by using a section of the TLS Supported Groups Registry (renamed
from EC Named Curve Registry by this document) to establish common
finite field DH parameters with known structure and a mechanism for
peers to negotiate support for these groups. This document updates
TLS versions 1.0 (RFC 2246), 1.1 (RFC 4346), and 1.2 (RFC 5246), as
well as the TLS Elliptic Curve Cryptography (ECC) extensions (RFC
4492).
Electric current induced ultrafast demagnetization (2017)

We report the magnetic response of Co/Pt multilayers to picosecond electrical heating. Using photoconductive Auston switches, we generate electrical pulses with 5.5 ps duration and hundreds of pico-Joules to pass through Co/Pt multilayers. The electrical pulse heats the electrons in the Co/Pt multilayers and causes an ultrafast reduction in the magnetic moment. A comparison between optical and electrically induced demagnetization of the Co/Pt multilayers reveals significantly different dynamics for optical vs electrical heating. We attribute the disparate dynamics to the dependence of the electron-phonon interaction on the average energy and the total number of initially excited electrons.
High Voltage Solid-State Pulser For High Repetition-Rate Gas Lasers. (1989)

An all solid-state pulser for the excitation of a high repetition-rate TEA CO2 laser is described. The pulser uses a fast switching thyristor, a fast pulse transformer and a two-stage magnetic pulse compression network. The pulser interfaced with the laser has been succesfully operated at 200 Hz with a pulse energy of 7 J, peak voltage of 20 kV, pulse duration 0.6 μs, and an overall efficiency of 70%.
Prolonged post-faint hypotension can be reversed by dynamic tension (2011)

A severe variant of vasovagal syncope, observed during tilt tests and blood donation has recently been termed "prolonged post-faint hypotension" (PPFH). A 49-year-old male with a life-long history of severe fainting attacks underwent head-up tilt for 20 min, and developed syncope 2 min after nitroglycerine spray. He was unconscious for 40 s and asystolic for 22 s. For the first 2 min of recovery, BP and HR remained low (65/45 mmHg and 40 beats/min) despite passive leg-raising. Blood pressure (and symptoms) only improved following active bilateral leg flexion and extension ("dynamic tension"). During PPFH, when vagal activity is extreme, patients may require central stimulation as well as correction of venous return.
Femtosecond Laser-enabled Keratoplasty (2013)

Asota, Ijeoma MD; Farid, Marjan MD; Garg, Sumit MD; Steinert, Roger F. MD Author Information
Mineralocorticoid resistance (2005)

The mineralocorticoid aldosterone plays a crucial role in regulation of volume and electrolyte homeostasis. In recent years there has been considerable progress in deciphering the role of aldosterone in human physiology by the study of monogenic disorders exhibiting mineralocorticoid resistance. Although these disorders are rare, the elucidation of their molecular basis has yielded many insights into aldosterone biology that are proving relevant to the care of patients with a wide variety of cardiovascular diseases. Recent advances in understanding the molecular basis of syndromes of mineralocorticoid resistance are reviewed with a view towards an improved understanding of the role of aldosterone in renal sodium transport and its relationship to cardiovascular disease.
Untangling compound documents on the web (2003)

Most text analysis is designed to deal with the concept of a document, namely a cohesive presentation of thought on a unifying subject. By contrast, individual nodes on the World Wide Web tend to have a much smaller granularity than text We claim that the notions of document and node are not synonymous, and that authors often tend to deploy documents as collections of URLs, which we call documents. In this paper we present new techniques for identifying and working with such compound documents, and the results of some large-scale studies on such web The primary motivation for this work stems from the fact that information retrieval techniques are better suited to working on documents than individual hypertext nodes.
Reconstitution of Human Thymic Implants Is Limited by Human Immunodeficiency Virus Breakthrough during Antiretroviral Therapy (1999)

Human immunodeficiency virus type 1 (HIV-1)-infected SCID-hu thymic implants depleted of CD4(+) cells can support renewed thymopoiesis derived from both endogenous and exogenous T-cell progenitors after combination antiretroviral therapy. However, successful production of new thymocytes occurs transiently. Possible explanations for the temporary nature of this thymic reconstitution include cessation of the thymic stromal support function, exhaustion of T-cell progenitors, and viral resurgence. Distinguishing between these processes is important for the development of therapeutic strategies aimed at reconstituting the CD4(+) T-cell compartment in HIV-1 infection. Using an HIV-1 strain engineered to express the murine HSA heat-stable antigen surface marker, we explored the relationship between HIV-1 expression and CD4(+) cell resurgence kinetics in HIV-1-depleted SCID-hu implants following drug therapy. Antiviral therapy significantly suppressed HIV-1 expression in double-positive (DP) CD4/CD8 thymocytes, and the eventual secondary decline of DP thymocytes following therapy was associated with renewed viral expression in this cell subset. Thymocytes derived from exogenous T-cell progenitors induced to differentiate in HIV-1-depleted, drug-treated thymic implants also became infected. These results indicate that in this model, suppression of viral replication occurs transiently and that, in spite of drug therapy, virus resurgence contributes to the transient nature of the renewed thymic function.
Feeding behaviour in chickens given diets containing medium chain triglyceride (1993)

1. The effect of dietary medium chain triglyceride (MCT) on short-term food intake was compared with the effect of long chain triglyceride (LCT) in chickens. Maize oil was used as the LCT while glyceryl tricaprylate (C 8) and glyceryl tricaprate (C 10) were used as MCT. Cumulative food intake was determined during the 6 h after the start of feeding. 2. Chicks were given diets containing 200 g C 8/kg diet, 200 g C 10/kg diet or 200 g LCT/kg diet in experiment 1. As early as 30 min after feeding, cumulative food intake in both MCT-supplemented diets decreased significantly compared with the diet containing LCT. 3. To determine if endogenous cholecystokinin (CCK) was responsible for the decrease in food intake caused by MCT, birds were injected with the CCK-A receptor antagonist devazepide (DVZ, 1 mg/kg BW) before diet presentation. DVZ had no effect on food intake with either LCT- or MCT-supplemented diets. 4. In experiment 3, chicks were given a choice between either diets containing LCT and C 8, LCT and C 10, or C 8 and C 10 to confirm whether or not the palatability of the diets was influenced by the dietary fat sources. There was no difference in food intake between C 8 and C 10-supplemented diets. However, chicks preferred the LCT-supplemented diet compared with either of the diets containing MCT.
On the stability of shallow rivulets (2009)

We examine the linear stability of a capillary rivulet under the assumption that it is shallow enough to be described by the lubrication approximation. It is shown that rivulets on a sloping plate are stable regardless of their parameters, whereas rivulets on the underside of a plate can be either stable or unstable, depending on their widths and the plate's slope. For the case of a horizontal plate, sufficiently narrow rivulets are shown to be stable and sufficiently wide ones unstable, with the threshold width being π/2(σ/ g ρ) 1/2 (ρ and σ are the liquid's density and surface tension, g is the acceleration due to gravity). It is also shown that, even though the plate's slope induces in a rivulet a sheared flow (which would normally be viewed as a source of instability) – in the present problem, it is a stabilizing factor. The corresponding stability criterion involving the rivulet's width and the plate's slope is computed, and it is demonstrated that, if the latter is sufficiently strong, all rivulets are stable regardless of their widths.
Biomimetic MXene Textures with Enhanced Light‐to‐Heat Conversion for Solar Steam Generation and Wearable Thermal Management (2019)

Abstract 2D materials are of particular interest in light‐to‐heat conversion, yet challenges remain in developing a facile method to suppress their light reflection. Herein, inspired by the black scales of Bitis rhinoceros , a generalized approach via sequential thermal actuations to construct biomimetic 2D‐material nanocoatings, including Ti 3 C 2 T x MXene, reduced graphene oxide (rGO), and molybdenum disulfide (MoS 2 ) is designed. The hierarchical MXene nanocoatings result in broadband light absorption (up to 93.2%), theoretically validated by optical modeling and simulations, and realize improved light‐to‐heat performance (equilibrium temperature of 65.4 °C under one‐sun illumination). With efficient light‐to‐heat conversion, the bioinspired MXene nanocoatings are next incorporated into solar steam‐generation devices and stretchable solar/electric dual‐heaters. The MXene steam‐generation devices require much lower solar‐thermal material loading (0.32 mg cm −2 ) and still guarantee high steam‐generation performance (1.33 kg m −2 h −1 ) compared with other state‐of‐the‐art devices. Additionally, the mechanically deformed MXene structures enable the fabrication of stretchable and wearable heaters dual‐powered by sunlight and electricity, which are reversibly stretched and heated above 100 °C. This simple fabrication process with effective utilization of active materials promises its practical application value for multiple solar–thermal technologies.
Phonon-pumped terahertz gain in <i>n</i>-type GaAs/AlGaAs superlattices (2001)

Local population inversion and far-IR gain are proposed and theoretically analyzed for an unbiased n-doped GaAs/Al0.15Ga0.85As superlattice pumped solely by phonons. The lasing transition occurs at the Brillouin zone boundary of the superlattice wave vector kz between the two conduction minibands CB1 and CB2 of the opposite curvature in kz space. The proposed waveguided structure is contacted above and below by heat sinks at 300 K and 77 K, respectively. Atop the superlattice, a heat buffer layer confines longitudinal optical phonons for enhanced optical-phonon pumping of CB1 electrons. A gain of 345 cm−1 at 4.5 THz is predicted for a doping density of 2.8×1016 cm−3.