gebhart/patrepeval huggingface dataset:
Origin of coronal mass ejection and magnetic cloud: Thermal or magnetic driven? (1995)

A fundamental problem in Solar-Terrestrial Physics is the origin of the solar transient plasma output, which includes the coronal mass ejection and its interplanetary manifestation, e.g. the magnetic cloud. The traditional blast wave model resulted from solar thermal pressure impulse has faced with challenge during recent years. In the MHD numerical simulation study of CME, the authors find that the basic feature of the asymmetrical event on 18 August 1980 can be reproduced neither by a thermal pressure nor by a speed increment. Also, the thermal pressure model fails in simulating the interplanetary structure with low thermal pressure and strong magnetic field strength, representative of a typical magnetic cloud. Instead, the numerical simulation results are in favor of the magnetic field expansion as the likely mechanism for both the asymmetrical CME event and magnetic cloud.
Non-invasive VHF monitoring of low-temperature atmospheric pressure plasma (2010)

A real-time VHF swept frequency (20–300 MHz) reflectometry measurement for radio-frequency capacitive-coupled atmospheric pressure plasmas is described. The measurement is scalar, non-invasive and deployed on the main power line of the plasma chamber. The purpose of this VHF signal injection is to remotely interrogate in real-time the frequency reflection properties of plasma. The information obtained is used for remote monitoring of high-value atmospheric plasma processing. Measurements are performed under varying gas feed (helium mixed with 0–2% oxygen) and power conditions (0–40 W) on two contrasting reactors. The first is a classical parallel-plate chamber driven at 16 MHz with well-defined electrical grounding but limited optical access and the second is a cross-field plasma jet driven at 13.56 MHz with open optical access but with poor electrical shielding of the driven electrode. The electrical measurements are modelled using a lumped element electrical circuit to provide an estimate of power dissipated in the plasma as a function of gas and applied power. The performances of both reactors are evaluated against each other. The scalar measurements reveal that 0.1% oxygen admixture in helium plasma can be detected. The equivalent electrical model indicates that the current density between the parallel-plate reactor is of the order of 8–20 mA cm-2 . This value is in accord with 0.03 A cm-2 values reported by Park et al (2001 J. Appl. Phys. 89 20–8). The current density of the cross-field plasma jet electrodes is found to be 20 times higher. When the cross-field plasma jet unshielded electrode area is factored into the current density estimation, the resultant current density agrees with the parallel-plate reactor. This indicates that the unshielded reactor radiates electromagnetic energy into free space and so acts as a plasma antenna.
Audio-Visual Speech Codecs: Rethinking Audio-Visual Speech Enhancement by Re-Synthesis (2022)

Since facial actions such as lip movements contain significant information about speech content, it is not surprising that audio-visual speech enhancement methods are more accurate than their audio-only counterparts. Yet, state-of-the-art approaches still struggle to generate clean, realistic speech without noise artifacts and unnatural distortions in challenging acoustic environments. In this paper, we propose a novel audio-visual speech enhancement framework for high-fidelity telecommunications in AR/VR. Our approach leverages audio-visual speech cues to generate the codes of a neural speech codec, enabling efficient synthesis of clean, realistic speech from noisy signals. Given the importance of speaker-specific cues in speech, we focus on developing personalized models that work well for individual speakers. We demonstrate the efficacy of our approach on a new audio-visual speech dataset collected in an unconstrained, large vocabulary setting, as well as existing audio-visual datasets, outperforming speech enhancement baselines on both quantitative metrics and human evaluation studies. Please see the supplemental video for qualitative results <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sup> <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sup> https://github.com/facebookresearch/facestar/releases/download/paper_materials/video.mp4.
Preclinical evaluation of biomarkers for response monitoring to the MET inhibitor BAY-853474 (2012)

IHC-based analysis of target phosphorylation in tumor biopsies is recommended in addition to testing plasma biomarkers for response monitoring.
Nanotechnology (2015)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA HomeNew OnlineCurrent IssueFor Authors Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) Podcasts Clinical Reviews Editors' Summary Medical News Author Interviews More JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA journal
A review of experiences with reliable multicast (1999)

By understanding how real users have employed reliable multicast in real distributed systems, we can develop insight concerning the degree to which this technology has matched expectations. This paper reviews a number of applications with that goal in mind. Our findings point to trade-offs between the form of reliability used by a system and its scalability and performance. We also find that to reach a broad user community (and a commercially interesting market) the technology must be better integrated with component and object-oriented systems architectures. Looking closely at these architectures, however, we identify some assumptions about failure handling which make reliable multicast difficult to exploit. Indeed, the major failures of reliable multicast are associated with attempts to position it within object-oriented systems in ways that focus on transparent recovery from server failures. The broader opportunity appears to involve relatively visible embeddings of these tools into object-oriented architectures enabling knowledgeable users to make trade-offs. Fault-tolerance through transparent server replication may be better viewed as an unachievable holy grail. Copyright © 1999 John Wiley & Sons, Ltd.
Growth of axons in fibre tracts of the adult central nervous system (1996)

A number of experiments have implicated white matter tracts as the site for failure of regeneration in the adult mammalian central nervous system (CNS) (Cajal, 1928; Schwab, 1990). In order to assess the ability of adult white matter tracts to sustain and direct new axonal growth, I have used an air pressure pulse microtransplantation technique, to introduce minute volumes of suspensions of mouse embryonic neurons and glia directly into and completely enclosed within a number of different adult rat CNS tracts. Using mouse specific monoclonal markers (M6 and Thy1.2), I have observed rapid, long interfascicular axon growth from the transplants through the host white matter, aligned with tract glial and axonal elements and invading host terminal fields. These results show that adult white matter tracts are a highly permissive substrate for embryonic axonal growth. I have demonstrated that the interface between the embryonic neural microtransplants and the adult tract permits the ingrowth of adult tract axons. Injection of biotin dextran tracer into the adult fimbria of rat hosts, labelled host axons within the neuropil of hippocampal intratract microtransplants. Host innervation of the embryonic microtransplants was confirmed by transection of the host fimbrial axons, allowing electron microscopy of their degenerating synapses within the intrafimbrial grafts. To examine the ability of cut adult central nervous system axons to regenerate through an aligned but reactive adult tract glial pathway, I have designed a microlesion approach, in which a micropipette is used to cut a contingent of p75 immuno-positive adult cingulate axons. No glial scar or necrotic tissue cavity were formed at the lesion site and immunohistochemistry for GFAP (for astrocytes) and OX42 (for microglial) showed that the adult tract glial framework (Suzuki and Raisman, 1992) rapidly regained it's normal alignment. Specific upregulation of p75 immuno-reactivity in the proximal segments of the cut axons showed that regeneration of these axons through the lesion site was totally blocked, even in the absence of a glial scar.
Expression of the P2X2Receptor Subunit of the ATP-Gated Ion Channel in the Cochlea: Implications for Sound Transduction and Auditory Neurotransmission (1999)

Extracellular ATP has multimodal actions in the cochlea affecting hearing sensitivity. ATP-gated ion channels involved in this process were characterized in the guinea pig cochlea. Voltage-clamped hair cells exhibited a P2 receptor pharmacology compatible with the assembly of ATP-gated ion channels from P2X(2) receptor subunits. Reverse transcription-PCR experiments confirmed expression of the P2X(2-1) receptor subunit mRNA isoform in the sensory epithelium (organ of Corti); a splice variant that confers desensitization, P2X(2-2), was the predominant subunit isoform expressed by primary auditory neurons. Expression of the ATP-gated ion channel protein was localized using a P2X(2) receptor subunit-specific antiserum. The highest density of P2X(2) subunit-like immunoreactivity in the cochlea occurred on the hair cell stereocilia, which faces the endolymph. Tissues lining this compartment exhibited significant P2X(2) receptor subunit expression, with the exception of the stria vascularis. Expression of ATP-gated ion channels at these sites provides a pathway for the observed ATP-induced reduction in endocochlear potential and likely serves a protective role, decoupling the "cochlear amplifier" in response to stressors, such as noise and ischemia. Within the perilymphatic compartment, immunolabeling on Deiters' cells is compatible with purinergic modulation of cochlear micromechanics. P2X(2) receptor subunit expression was also detected in spiral ganglion primary afferent neurons, and immunoelectron microscopy localized these subunits to postsynaptic junctions at both inner and outer hair cells. The former supports a cotransmitter role for ATP in a subset of type I spiral ganglion neurons, and latter represents the first characterization of a receptor for a fast neurotransmitter associated with the type II spiral ganglion neurons.
[Activated protein C resistance: role in venous and arterial thrombosis]. (1996)

Activated protein C resistance is the most prevalent cause of thrombophilia: it is found in 20% to 30% of patients with a history of deep venous thrombosis history. Activated protein C resistance is due to an arginine 506 to glutamine mutation in factor V. This mutation prevents normal inactivation of activated factor V by activated protein C. The estimated increase in relative risk of venous thrombosis is 5 to 10 fold in heterozygotes, and 50- to 100- fold in homozygotes. Activated protein C resistance does not seem to play a role in arterial thrombosis or in the occurrence of myocardial infarction.
Coal liquefaction process streams characterization and evaluation. Volume 2, Participants program final summary evaluation (1994)

This 4.5-year project consisted of routine analytical support to DOE`s direct liquefaction process development effort (the Base Program), and an extensive effort to develop, demonstate, and apply new analytical methods for the characterization of liquefaction process streams (the Participants Program). The objective of the Base Program was to support the on-going DOE direct coal liquefaction process development program. Feed, process, and product samples were used to assess process operations, product quality, and the effects of process variables, and to direct future testing. The primary objective of the Participants Program was to identify and demonstrate analytical methods for use in support of liquefaction process develpment, and in so doing, provide a bridge between process design, development, and operation and analytical chemistry. To achieve this direct coal liquefaction-derived materials. CONSOL made an evaluation of each analytical technique. During the performance of this project, we obtained analyses on samples from numerous process development and research programs and we evaluated a variety of analytical techniques for their usefulness in supporting liquefaction process development. Because of the diverse nature of this program, we provide here an annotated bibliography of the technical reports, publications, and formal presentations that resulted from this program to serve as a comprehensive summary of contract activities.
Optical properties of diarylethylene polymers (2016)

In this paper, we present the optical properties such as absorption, luminescence and IR transmission spectra of 2-styrylquinoline containing polymers thin films. We notice that the extension of the polymer chain in these compounds causes the change their spectroscopic and physical properties.
Identification of iron-sulfur centers in the iron-molybdenum proteins of nitrogenase. (1979)

The core extrusion method has been applied to the determination of the type ([2Fe-2S], [4Fe-4S]) and number of iron-sulfur centers in the FeMo proteins of the nitrogenases from Clostridium pasteurianum and Azotobacter vinelandii. The method involves extrusion with o-xylyl-alpha, alpha'-dithiol, ligand exchange of the extrusion products with p-CF3C6H4SH (RFSH), and identification and quantitation of the resultant [FenSn(SRF)4]2- complexes (n = 2,4) by 19F NMR spectroscopy. In hexamethylphosphoramide/water, 4:1 (vol/vol), 49-56% of the Fe content was extruded as [Fe4S4(SRF)4]2-, corresponding to 3,4-4.0 Fe4S4 cores per alpha 2 beta 2 subunit complex. The extruded iron does not arise from the FeMo cofactor, separate examination of which detected no extrusion products, and corresponds to 90-103% of noncofactor iron. No significant quantity of Fe2S2 cores was extruded. These results indicate the presence of four [4Fe-4S] centers per alpha 2 beta 2 subunit complex in preparations undepleted in iron. There are two main structural populations of iron atoms in these proteins, those in the cubane-type Fe4S4 cores and those in the FeMo cofactor.
Studies on the constituents of the stems of Tinospora tuberculata Beumee. III. New diterpenoids, borapetoside B and borapetol B. (1986)

A new diterpene glucoside, borapetoside B (1), and its aglycone, borapetol B (2), were isolated from the stems of Tinospora tuberculate BEUMEE as the bitter principles, and their structures were elucidated.
Magnetic properties and structure of R2Co17−xTix intermetallic compounds (R=Pr or Nd) (1997)

The effect of substitution of Ti for Co in compounds R2Co17−xTix (R=Pr or Nd, and x=0.0–2.0) on the structure and the magnetic properties has been investigated. It is found that the solubility of Ti in the compounds R2Co17−xTix (R=Pr or Nd) is around 1.0. The R2Co16Ti (R=Pr or Nd) are isostructures to their parent compounds (rhombohedral), and its unit cell is expanded. The spontaneous magnetization μs and Curie temperature TC decrease with increasing Ti content, owing to the magnetic dilution and the reduction of the moment of Co sublattice caused by Ti substitution. Moreover, an anomaly in the M-T curves of Pr2Co16Ti and Nd2Co17−xTix compounds with x=0.5 and 1.0 may be attributed to a spin reorientation. This transition may originate from the change of crystal electron field due to the preferential occupation of Ti atoms on specific crystallographic sites.
Humoral vasopressor agents in primary hypertension. (1987)

In essential hypertension and in the spontaneously hypertensive rat, there are indications for a yet unidentified vasopressor agent which may play an important role in pathogenesis. It has been demonstrated in the spontaneously hypertensive rat by parabiosis, cross-circulation, cross-transplantation of kidneys and by injection of hypertensive plasma fractions. In plasma from essential hypertensives, an agent sensitizing the vasculature to pressor hormones and a substance with direct vasopressor actions have been found. The relationship of the hypertensive factor to the natriuretic hormone is not clear.
Channel Estimation for the Chinese DTTB System Based on a Novel Iterative PN Sequence Reconstruction (2008)

Digital television/terrestrial multimedia broadcasting (DTMB), announced as the Chinese digital television terrestrial broadcasting (DTTB) standard in August, 2006, recommends three PN padding modes as guard intervals (GI) and training sequences for both multi- and single-carrier block transmissions. The conventional channel estimation methods can be performed through either the subtraction of the pseudo-noise (PN) sequence or the cancellation of residual inter-symbol interference, which are quite complex. In this paper, a simple method is introduced to separate the PN sequence from the OFDM symbol and the channel impulse response (CIR) estimation can be obtained and updated via the reconstruction of the PN sequence in an iterative manner. Analysis shows that the proposed algorithm achieves low-complexity channel estimation and can be applied to the DTMB receiver directly. Simulation shows that the proposed algorithm works well under slow-fading broadcast channel even with long delay spread.
Supplementary Figure 5 from Extensive Profiling of the Expression of the Indoleamine 2,3-Dioxygenase 1 Protein in Normal and Tumoral Human Tissues (2023)

&lt;p&gt;Kinetics of LPS-induced DC maturation.&lt;/p&gt;
Process requirements for achieving full-flow disinfection of recirculating water using ozonation and UV irradiation (2008)

A continuous water disinfection process can be used to prevent the introduction and accumulation of obligate and opportunistic fish pathogens in recirculating aquaculture systems (RAS), especially during a disease outbreak when the causative agent would otherwise proliferate within the system. To proactively prevent the accumulation of fish pathogens, ozonation and ultraviolet (UV) irradiation processes have been used separately or in combination to treat water in RAS before it returns to the fish culture tanks. The objective of the present study was to determine the process requirements necessary to disinfect the full RAS flow, using ozonation followed by UV irradiation, just before the flow was returned to the fish culture tank(s). We found that a proportional-integral (PI) feed-back control loop was able to automatically adjust the concentration of ozone (O3) generated in the oxygen feed gas (and thus added in the low head oxygenator) in order to maintain the dissolved O3 residual or ORP at a pre-selected set-point. We determined that it was easier and effective to continuously monitor and automatically control O3 dose using an oxidative reduction potential (ORP) probe (in comparison to a dissolved ozone probe) that was located at the outlet of the O3 contact chamber and immediately before water entered the UV irradiation unit. PI control at an ORP set-point of 450 and 525 mv and a dissolved O3 set-point of 20 ppb provided almost complete full-flow inactivation of heterotrophic bacteria plate counts (i.e., producing <1 cfu/mL) and improved water quality (especially color and %UVT) in a full-scale recirculating system. Achieving this level of treatment required adding a mean dose of approximately 29 ± 3 g O3 per kg feed. However, because water is treated and reused repeatedly in a water reuse system, the mean daily O3 demand required to maintain an ORP of 375–525 mV (or at 20 ppb dissolved O3) was 0.34–0.39 mg/L, which is nearly 10 times lower than what is typically required to disinfect surface water in a single pass treatment. These findings can be used to improve biosecurity and product quality planning by providing a means for continuous water disinfection in controlled intensive RAS.
A position paper on compile-time program analysis (1997)

Current challenges to the compile-time analysis research community include unifying the nomenclature in program analysis, embedding analyses in practical software tools, influencing programming language design to allow analysis, and adapting analyses to the blend of architectures, languages and operating systems common in modern software. These challenges must be met to ensure that compile-time analyses will continue to be of practical benefit.
Analytical Design Procedure for Forward Wave Couplers in RGW Technology Based on Hybrid PEC/PMC Waveguide Model (2019)

In this paper, a systematic design methodology of a 0dB and a 3dB forward couplers based on the ridge gap waveguide (RGW) technology is presented. This methodology is based on exact theoretical formulations rather than any approximate or empirical equations. The procedure of the proposed design methodology is mainly to build a virtual equivalent waveguide model. This waveguide has two horizontal upper and lower perfect electric conductor (PEC) walls, while the left and the right walls are made of perfect magnetic conductors (PMC). A detailed analysis for this hybrid PEC/PMC waveguide, a common waveguide for coupling, is introduced as the starting phase for designing the RGW couplers. The equivalent RGW coupler that assures the same operation of the hybrid PEC/PMC waveguide at a specific frequency range is deduced based on detailed theoretical aspects. Moreover, a simple analyzing of transitional bends and phase shifters with accurate calculations is presented in this paper, which are the fundamental building blocks of several mmW components such as the six-port junction and the butler matrix. The possibility of tuning the coupler center frequency is introduced without the need of using any nonlinear elements. The resulting RGW couplers are implemented through well-known full wave simulator (Ansoft HFSS), with verification through prototype measurements in order to confirm the validity of the proposed methodology. A good agreement is achieved between measurement and simulation results.