gebhart/patrepeval huggingface dataset:
Non-monotonic curvature-dependent propagation (1999)

Some flames and other kinds of interface appear to have normal propagation speeds that depend non-monotonically on curvature. The gradient of this dependence determines whether disturbances about the interface grow antidiffusively or decay diffusively and, in general, windows of antidiffusive behaviour may appear over finite ranges of curvature which carry the ‘wrong’ gradient of propagation speed. A number of peculiarities arise. For instance an interface can, under appropriate conditions, propagate subject to an antidiffusive instability for an infinite time but remain well-posed with respect to initial conditions for all time! It is not well known, but is shown here, that the linear diffusion equation ut=Duxx, with time-dependent coefficient D(t), does not become ill-posed with respect to initial conditions when its diffusion coefficient becomes negative, but when the integral of the diffusion coefficient with respect to time becomes negative. Structural well-posedness is examined and is shown to depend on the spectrum of any ‘noise’ which may affect the propagation of the interface. Steadily propagating solutions are investigated; among them solutions can be identified which appear to involve a ‘phase separatio’ in curvature space, on arbitrarily fine scales, between different solutions of fixed form. From a broader modelling perspective, antidiffusively unstable behaviour needs to be regularized in some way. Regularization would also provide a lower limit to the appearance of fine structure. The Kuramoto-Sivashinsky equation suggests a regularized model which effectively adds a normal-propagation nonlinearity to the Cahn-Hilliard equation. This reinforces the notion that non-monotonicity in a speed-curvature relationship may be associated with ‘phase separatio’ in curvature space. Understanding better the nature of this association in the presence of normal propagation, and any other features of the dynamics of the interface, requires further (numerical as well as analytical) investigation.
Chemical bath method to grow precipitated nanorods of iridium oxide on alumina membranes (2012)

High aspect ratio iridium (IV) oxide nanorods have been successfully grown on a copper thin film by a chemical co-precipitation method. A porous anodised aluminium oxide (AAO) template was implemented to assist the growth of the well aligned and densely packed iridium oxide (IrO2) nanostructures. Nanorods with an aspect ratio of 22 can be synthesised within 45 min. X-ray diffraction measurement unveiled the crucial role of the AAO template in the orientation-aligned growth of IrO2 nanorods along the [110] crystallography direction. The large surface area of IrO2 nanostructures exhibiting a high capacitive property can be utilised in supercapacitors or sensing applications. Owing to the simpler fabrication processes, IrO2 nanorods can be mass produced in a short period of time.
FT-IR/PA study of quinoline adsorbed on calcined and sulfided molybdenum/.gamma.-alumina (1985)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFT-IR/PA study of quinoline adsorbed on calcined and sulfided molybdenum/.gamma.-aluminaSaibal Bandyopadhyay, F. E. Massoth, Stanley Pons, and Edward M. EyringCite this: J. Phys. Chem. 1985, 89, 12, 2560–2564Publication Date (Print):June 1, 1985Publication History Published online1 May 2002Published inissue 1 June 1985https://pubs.acs.org/doi/10.1021/j100258a027https://doi.org/10.1021/j100258a027research-articleACS PublicationsRequest reuse permissionsArticle Views136Altmetric-Citations12LEARN 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 InRedditEmail Other access options Get e-Alerts
Design and implementation of wireless bridge health monitoring system (2011)

On account of the existing problems, which are complex, costly and difficult to maintain, in the bridge monitoring systems, we present a system based on the Zigbee technology. This article introduces the method of establishing the system from the perspective of practical implementation of hardware and software. We design the hardware using the TI's CC2530 chip which is a Single-Chip solution for wireless sensor network .Our software is designed using Zigbee protocol stack. The self-organizing wireless network is able to collect various data of bridges, including acceleration, pressure, temperature, humidity. Experiment results validate its rationality and effectivity for bridge structure health monitoring. (5 pages)
Intraoperative Bleeding in Dogs from Grenada Seroreactive to Anaplasma platys and Ehrlichia canis (2014)

Apparently healthy, free-roaming dogs coseropositive for A. platys and E. canis may have increased intraoperative bleeding tendencies despite normal hemostatic parameters. Future investigations should explore the potential for vascular injury as a cause for bleeding in these dogs. Improved tick control is needed for dogs in Grenada.
LowPower LowPhaseNoise Differentially Tuned Quadrature VCO Design in Standard CMOS (2009)

<P>This paper describes the design and optimization or voltage controlled oscillators with quadrature outputs. Systematic design or fully integrated LC-VCOs with a high inductance tank leads to a cross-coupled double core LC-VCO as the optimal solution in tenns or power consumption. Futhennore, a novel fully differential frequency tuning concept is introduced to ease high integration. The concepts are verified with a 0.25-µm standard CMOS fully integrated quadrature voltage-controlled oscillator (VCO) for zero- or low-IF DCS1800, DECT, or GSM receivers. At 2.5-V power supply voltage and a total power dissipation of 20 mW, the quadrature VCO features a worst-case phase noise of -143 dBc/Hz at 3-MHz frequency offset over the tuning range. The oscillator is tuned from 1.71 to 1.99 GHz through a differential nMOS/pMOS varactor input.</P>
Hyperspectral microscopy and cluster analysis for oral cancer diagnosis (2017)

Oral cancer incidences have been increasing in recent years and late detection often leads to poor prognosis. Raman spectroscopy has been identified has a valuable diagnostic tool for cancer but its time consuming nature has prevented its clinical use. For Raman to become a realistic aid to histopathology, a rapid pre-screening technique is required to find small regions of interest on tissue sections <sup>[1]</sup>. The aim of this work is to investigate the feasibility of hyperspectral imaging in the visible spectral range as a fast imaging technique before Raman is performed. We have built a hyperspectral microscope which captures 300 focused and intensity corrected images with wavelength ranging from 450- 750 nm in around 30 minutes with sub-micron spatial resolution and around 10 nm spectral resolution. Hyperstacks of known absorbing samples, including fluorescent dyes and dried blood droplets, show excellent results with spectrally accurate transmission spectra and concentration-dependent intensity variations. We successfully showed the presence of different components from a non-absorbent saliva droplet sample. Data analysis is the greatest hurdle to the interpretation of more complex data such as unstained tissue sections.
Cyclic Markov chains with an application to an intermediate ENSO model (2003)

Abstract. We develop the theory of cyclic Markov chains and apply it to the El Niño-Southern Oscillation (ENSO) predictability problem. At the core of Markov chain modelling is a partition of the state space such that the transition rates between different state space cells can be computed and used most efficiently. We apply a partition technique, which divides the state space into multidimensional cells containing an equal number of data points. This partition leads to mathematical properties of the transition matrices which can be exploited further such as to establish connections with the dynamical theory of unstable periodic orbits. We introduce the concept of most and least predictable states. The data basis of our analysis consists of a multicentury-long data set obtained from an intermediate coupled atmosphere-ocean model of the tropical Pacific. This cyclostationary Markov chain approach captures the spring barrier in ENSO predictability and gives insight also into the dependence of ENSO predictability on the climatic state.
F/sub 2/ laser deposition of CdTe microcrystallites-doped fluoropolymer thin films (1995)

Crystalline thin films of polytetrafluoroethylene (PTFE) were deposited by F/sub 2/ laser (157 nm) ablation in 200 mTorr Ar gas atmosphere. Combining this PTFE thin-film process with CdTe microcrystallites synthesis in sizes of 3-7 nm via KrF laser (248 nm) ablation, CdTe microcrystallites-doped PTFE thin films were fabricated. The X-ray photoemission spectra show that the main architecture of PTFE and CdTe are maintained in the doped films. CdTe microcrystallites doped in PTFE matrix show an absorption edge shift toward higher energy and a third-order optical nonlinearity, which are induced by the quantum size effect.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Experimental investigation of delayed instantaneous demixer for speech enhancement (2002)

This paper presents a delayed instantaneous demixer (DID) for speech signal separation from real recordings. Based on the fact that the original signals are colored and mutually uncorrelated, a simple algorithm is derived to estimate the parameters of the demixer. This algorithm consists of two parts: a grid searching method to estimate time delays and an alternating projection method to estimate gain coefficients. Experimental result demonstrates the performance of the model and the algorithm.
Brasilicardin A, a New Terpenoid Antibiotic from Pathogenic Nocardia brasiliensis: Fermentation, Isolation and Biological Activity. (1999)

A novel tricyclic diterpenoid antibiotic, brasilicardin A, was isolated from the culture broth of Nocardia brasiliensis IFM 0406. The antibiotic exhibited immunosuppressive activity in a mouse mixed lymphocyte reaction (MLR) assay system and its IC50 value was 0.057 microg/ml. Although the inhibitory activity of cyclosporin A (CyA) against IL-2 production was confirmed in the MLR assay system, brasilicardin A did not have the activity. The results of in vitro toxicity testing of brasilicardin A against various human cell lines were compared with those of CyA.
Fuzzy linguistic modeling and control of manufacturing systems (2002)

Manufacturing processes are characterized by both discrete and continuous variable dynamics. The design of innovative and effective control strategies for these processes requires the development of new modeling techniques that not only capture the hybrid continuous/discrete dynamic nature of the process, but also address the performance objectives in a systematic way. It is also desirable that the modeling techniques address the controller design issue from a system-theoretic perspective. This paper introduces a new hierarchical approach for modeling of manufacturing systems in which the manufacturing plant is explicitly differentiated from the controller. A key feature of the proposed approach is the use of system-theoretic control concepts that capitalize upon tools from the area of fuzzy logic. An equivalence of this modeling approach with fuzzy Petri nets is described. An example is given that illustrates the design techniques.
Current trends in the pharmacologic and surgical treatment of Parkinson's disease (1996)

Recently, there has been a surge in the research regarding the pharmacologic and surgical treatment of Parkinson's disease. This article reviews the latest modes of medical and surgical therapy for Parkinson's disease. The latest drug therapy has consisted of levodopa, a combination of levodopa and carbidopa (Sinemet/Sinemet CR), and monoamine oxidase type B (MAO-B) inhibitors (selegiline hydrochloride). The surgical treatment modalities have been stereotaxic implantations of dopamine-producing tissues (such as adrenal medulla and fetal mesencephalon) into the caudate nucleus and ventral pallidotomy of patients with Parkinson's disease. The most recent work has been in the field of gene therapy. The implantation of cells genetically modified to express trophic factors and tyrosine hydroxylase for the synthesis of L-dopa from tyrosine has been proposed as a possible route for the treatment of Parkinson's disease. Although the etiology of the disease is still unknown, two recent theories are discussed.
Impact of switching antiretroviral therapy on lipodystrophy and other metabolic complications: a review (2004)

Following the introduction of highly active antiretroviral therapy (HAART), metabolic and morphological complications known as HIV associated lipodystrophy syndrome (HALS) have been increasingly common. The approaches to target these complications span from resistance exercise, diet and use of the antidiabetics metformin or glitazones to high dose recombinant human growth hormone therapy or switching antiretroviral regimen. When looking at the effect of switching therapy, focus has been addressed to protease inhibitor (PI) based regimens, as PI was the first component of HAART recognized to be correlated with the disfiguring body-alterations known as HALS. More recently, however, regimens containing nucleoside reverse-transcriptase inhibitors (NRTI) have attracted attention. Reviewing switch studies regarding metabolic parameters and body shape changes, certain trends emerge. Switching from PI, the metabolic complications such as dyslipidaemia and insulin resistance seem to be partly reversible, whereas the morphologic alterations appear to be unchanged. In studies in which NRTI's are switched, dyslipidaemia appears unaffected, but a modest improvement in peripheral lipoatrophy has been reported. However the results are often inconsistent and difficult to interpret, mostly because of limitations in study design, patient number and duration of follow-up. The need for larger, controlled, randomized, long-term studies is evident.
A 7.5-GS/s 3.8-ENOB 52-mW flash ADC with clock duty cycle control in 65nm CMOS (2009)

A 7.5-GS/s 4.5-bit analog-to-digital converter (ADC) in 65nm CMOS is presented. A two-stage track-and-hold (TAH) with clock duty cycle control reduces bandwidth requirements on the slow TAH output to enable high sampling rates with low power consumption. The 7.5-GS/s flash ADC consumes 52-mW and occupies 0.01-mm2. Clock duty cycle control improves ENOB from 3.5 to 3.8 with an input sinusoid at the Nyquist frequency.
Associations of ultrafine and fine particles with childhood emergency room visits for respiratory diseases in a megacity (2021)

Our findings suggest that exposures to higher levels of PNC<sub>5-560</sub> from traffic emissions could be attributed to increased childhood respiratory morbidity, which supports traffic emission control priority in urban areas.
Efficient HVAC controls: A symbolic approach (2016)

Heating, ventilation, and air conditioning (HVAC) systems contribute significantly to energy consumption in buildings, and are the target of an ongoing push towards energy efficiency, which reflects on new requirements for the configuration and operation of HVAC units. On-off actuators are being replaced by staged or modulated ones, and additional components are being added to the HVAC units, which have to be properly managed by new, advanced control architectures. As such, it is increasingly more difficult for traditional control approaches to cope with new devices and meet new objectives. This leads to an opportunity for alternative, novel approaches to be adopted by the industry: promising are recently developed formal methods for controller synthesis. In this article, we employ formal, symbolic techniques to synthesize controllers for a model of a roof-top unit conditioning a low-rise commercial building. The synthesized controller is validated on a simulation with practically relevant operating conditions.
Court affirms physician's choice of abortion procedure. (1979)

In Colautti v. Franklin the U. S. Supreme Court threw out those portions of a Pennsylvania statute making physicians criminally liable for performing abortions of a "viable" fetus except to preserve the health of the pregnant woman and, in such a case, requiring physicians to use the abortion technique offering the best opportunity for the fetus to be aborted alive.
Thermal Analysis of Compacted Graphite Iron (2011)

Because of several attractive properties, compacted graphite iron has found a significant role in different areas like automotive engines and machine parts.The main focus of this project is on characterizing Compacted Graphite Iron (CGI) samples by different thermal analysis techniques and also achieving some thermal analysis approaches.Casting trials were made in Skvde and special raw materials were used.The treatment was made by the sandwich method.Magnesium, inoculants and rare earth metals were added to the melt.Different samples were cast with different Mg levels and holding times to analyse the effect of these parameters on graphite formation and variation in nodularity.First some images were taken from the samples by optical microscope and scanning electron microscope to make the microstructure visible.Then image analysis was done by the Qwin software to observe the effect of those parameters.Finally, cooling curves related to the samples were analysed by Matlab software to be compared with each other.ATAS software also was used to extract the characteristic points of cooling curves to observe if it is possible to find a comparable correlation between different cast iron types.Finally it was concluded that flake graphite and spheroidal graphite irons are easily distinguishable from each other by means of comparing the characteristic points.Also some of those characteristic points are useful to distinguish between the flake graphite and compacted graphite irons but the recognition becomes difficult when the comparison is made between the compacted graphite and spheroidal graphite irons.
Hydrogen Storage by Cryoadsorption in Ultrahigh‐Porosity Metal–Organic Frameworks (2010)

Take it to the limit: Ultrahigh-porosity metal–organic frameworks (MOFs) with extremely high specific surface areas show very high hydrogen uptake by physisorption at low temperatures. The total hydrogen storage capacity of MOF-210 through cryoadsorption exceeds even that of complex hydrides.
A total synthesis of actinobolin via the intermolecular Diels–Alder reaction of a threonine-derived diene (1986)

A. P. Kozikowski, T. Konoike and T. R. Nieduzak, J. Chem. Soc., Chem. Commun., 1986, 1350 DOI: 10.1039/C39860001350
Analysis and simulation of series-resonant high-frequency AC-linked DC-AC converter realizable by inverter modules (2002)

This paper proposes a new-type series resonant high-frequency AC linked DC-AC converter which simplifies the connection of a cycloconverter part using inverter configuration. Different aspects and the same aspects between the conventional and the proposed converter are compared. A simplified discrete time model is proposed for the simulation and analysis of the transient and steady state performance of the proposed converter. Simulation results are validated by experimental results.
ChemInform Abstract: Direct Synthesis of Thioethers from Carboxylates and Thiols Catalyzed by FeCl3. (2016)

Abstract It is remarkable that in the reaction with tetrazolthiols either excellent yields are achieved or no reaction occurs.
Clinical and genetic findings in Hungarian patients with X-linked juvenile retinoschisis. (2008)

Foveal cystic schisis was found more often by OCT than by funduscopy (+10%), while flat macular lamellar schisis was recognizable only by OCT. Advancing age inversely influenced the size of cavities (FT), and standard combined b-wave amplitudes of full-field ERG, while BCVA, response density, and implicit times of multifocal electroretinography did not show any obvious correlation with age. The atrophic stage of the disease was observable after 26 years of age. The lesions that appeared to be indicative of fundus albipunctatus were proven to be palisades between the splitted retinal layers. Our modified classification scheme was helpful in assessing the prevalence of disease types. In these Hungarian patients, one novel and eight known mutations were detected. The distribution of mutations in RS1 was different to that reported in the literature, because the greatest number of different mutations was in exon 6 instead of exon 4. Two mutation hot spots were found: between c.418-422 in exon 5 and between c.574-579 in exon 6. Genotype-phenotype correlation was not demonstrable.
Relaxing the actin cytoskeleton for adhesion and movement with Ena/VASP (2008)

At cell-cell contacts, as well as at the leading edge of motile cells, the plasticity of actin structures is maintained, in part, through labile connections to the plasma membrane. Here we explain how and why Drosophila enabled/vasodilator stimulated phosphoprotein (Ena/VASP) proteins are candidates for driving this cytoskeleton modulation under the membrane.
Ejercicios con Polinomios (2021)

Sea f(x) -P(x) -QTXT una función racional a coeficientes racionales, tal que f(n) e t s un en ero para cada entero n.Probar que f es un polinomio.2) Sean ( b b ) (
Protein Thiol Modification of Glyceraldehyde-3-phosphate Dehydrogenase and Caspase-3 by Nitric Oxide (2001)

The regulation of enzyme activity function is a major factor in the cellular response to a changing environment. One mechanism of enzyme activity regulation includes post-translational protein thiol modification by nitric oxide (NO) or its redox species. Major routs used by NO to modify cysteine residues of proteins include S-nitrosation, oxidation, mixed disulfide formation with glutathione, and the covalent attachment of nucleotide cofactors, i.e NAD(+)/NADH. Critical thiol centers serve as recognition sites for NO, thus channeling the NO signal through post-translational modifications and oxidation into cellular functions. Here, we summarize current knowledge on active site thiol modification of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and caspase-3 by nitric oxide. Although very different in their cellular function, both enzymes contain highly reactive cysteines which represent sensitive targets for NO. Our studies are supportive of a potential role of S-nitrosation and mixed disulfide formation as a general signaling mechanism that allows sensing of nitrosative stress. At the same time, modification of GAPDH and caspase-3 by NO show the diversity of mechanisms (S-nitrosation versus oxidations) that we are confronted with as a result of NO delivery, especially comparing in vitro studies with cellular systems. In the future it will be challenging to dissect how nitrosative and oxidative signaling mechanisms overlap and how intracellular communication systems allow their activation in a selective way.