gebhart/patrepeval huggingface dataset:
UHF Receiver Front-End: Implementation and Analog Baseband Design Considerations (2011)

An integrated ultrahigh-frequency (UHF) receiver is presented. A systematic analysis to quantify the interdependence of baseband filter and analog-to-digital converter (ADC) dynamic range in broadband receivers is presented. This analysis shows that: (1) low-order Butterworth filters are favorable when undesired power is dominated by far out blockers and (2) high-order inverse Chebyshev filters can reduce the resolution of a subsequent ADC by up to two additional bits in the presence of adjacent analog narrowband blockers. Based on the analysis, a cascaded, programmable, hybrid active-RC and switched-capacitor (SC) baseband filter is proposed. An all-digital nonoverlap clock tuning system to minimize the variation of available settling time window in SC circuits is also proposed. The receiver integrates the proposed filter with an RF variable gain amplifier (RFVGA) and a passive mixer. This receiver achieves a measured noise figure of 7.9 dB, an IIP3 of -8 dBm at maximum gain and +2 dBm at 9-dB RF attenuation. The chip consumes 120 mW (RFVGA, mixer and I-channel baseband) from 1.8-V analog/2.5-V digital dual supply and occupies 2.14 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> in IBM 0.18-μm RF CMOS technology.
Tackling systematic errors in quantum logic gates with composite rotations (2003)

We describe the use of composite rotations to combat systematic errors in single-qubit quantum logic gates and discuss three families of composite rotations which can be used to correct off-resonance and pulse length errors. Although developed and described within the context of nuclear magnetic resonance quantum computing, these sequences should be applicable to any implementation of quantum computation.
Ice‐Templated Protein Nanoridges Induce Bone Tissue Formation (2017)

Little is known about the role of biocompatible protein nanoridges in directing stem cell fate and tissue regeneration due to the difficulty in forming protein nanoridges. Here an ice-templating approach is proposed to produce semi-parallel pure silk protein nanoridges. The key to this approach is that water droplets formed in the protein films are frozen into ice crystals (removed later by sublimation), pushing the surrounding protein molecules to be assembled into nanoridges. Unlike the flat protein films, the unique protein nanoridges can induce the differentiation of human mesenchymal stem cells (MSCs) into osteoblasts without any additional inducers, as well as the formation of bone tissue in a subcutaneous rat model even when not seeded with MSCs. Moreover, the nanoridged films induce less inflammatory infiltration than the flat films in vivo. This work indicates that decorating biomaterials surfaces with protein nanoridges can enhance bone tissue formation in bone repair.
Ceramics for advanced technologies (1965)

Ceramics for advanced technologies , Ceramics for advanced technologies , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی
Scheduling Multi-tenant Cloud Workloads on Accelerator-Based Systems (2014)

Accelerator-based systems are making rapid inroads into becoming platforms of choice for high end cloud services. There is a need therefore, to move from the current model in which high performance applications explicitly and programmatically select the GPU devices on which to run, to a dynamic model where GPUs are treated as first class schedulable entities. The Strings scheduler realizes this vision by decomposing the GPU scheduling problem into a combination of load balancing and per-device scheduling. (i) Device-level scheduling efficiently uses all of a GPU's hardware resources, including its computational and data movement engines, and (ii) load balancing goes beyond obtaining high throughput, to ensure fairness through prioritizing GPU requests that have attained least service. With its methods, Strings achieves improvements in system throughput and fairness of up to 8.70× and 13%, respectively, compared to the CUDA runtime.
Determination of Heroin, 6-Acetylmorphine, and Morphine in Biological Fluids Using their Propionyl Derivatives with Ion Trap GC-MS (1997)

We present an analytical method for the determination of heroin, free 6-acetylmorphine (6-AM), and free morphine in blood, urine, and vitreous humor. This method is used in postmortem cases where heroin is the suspected cause of death. The analytical protocol includes the following steps: liquid-liquid extraction at pH 9.5, propionylation at room temperature of 6-AM, and morphine by propionic anhydride using 4-dimethylaminopyridine as catalyst. Neither heroin nor diethylnalorphine (internal standard) is transformed during this derivatization. The reaction products are analyzed using full-scan (250-405 amu) ion trap gas chromatography-mass spectrometry. This method provides a baseline separation and distinctive mass spectrum of each compound of interest. Reproducibility and an evaluation of analysis parameters are also presented.
Inheritance of green peach aphid resistance in the peach cultivar ‘Rubira’ (2002)

Abstract The green peach aphid (GPA) is a serious pest of peach tree in many areas of the world. To date, only one GPA resistance gene has been assigned in peach. This study was initiated to determine the inheritance of GPA resistance in the red leaf peach rootstock cultivar ‘Rubira’. Crosses were made between ‘Rubira’ and the susceptible green leaf peach rootstock cultivar ‘Pamirskij 5′. Genetic analysis was performed on the parents, F 1 and F 2 progenies. Analyses of segregation patterns of plants in F 1 (1:0) and F 2 (3:1) indicated single dominant gene control of GPA resistance in ‘Rubira’. Reddish spots, probably due to aphid feeding punctures, are associated with, but not themselves responsible for, the GPA resistance in ‘Rubira’. No relationship was found between GPA resistance and the red leaf character of ‘Rubira’.
Evidence for 5-HT1B/1D Receptors Mediating the Antimigraine Effect of Sumatriptan and Dihydroergotamine (1991)

Neurogenic plasma extravasation, endothelial cell activation (increase in vesicle number and vacuole formation), platelet aggregation and adhesion, and mast cell degranulation occur selectively in post-capillary venules of the dura mater following electrical trigeminal ganglion stimulation, and are mediated by release of neuropeptides from perivascular unmyelinated C fibres. Pre-treatment with the antimigraine drugs dihydroergotamine and sumatriptan, two drugs that bind with high affinity to 5-HT1B/1D receptors, markedly attenuated plasma protein extravasation induced by electrical trigeminal ganglion stimulation. Trigeminal stimulation increased plasma calcitonin gene-related peptide levels in rat superior sagittal sinus. Pre-treatment with dihydroergotamine and, to a lesser extent, sumatriptan, attenuated this increase. Both drugs reduced morphological changes in post-capillary venules and mast cells within dura mater following electrical trigeminal ganglion stimulation. Plasma protein extravasation was selectively blocked in dura mater (but not in extracranial tissues) by pre-treatment with those receptor agonists showing a rank order of potency suggesting a 3-HT1B/1D interaction (5-CT greater than 5-BT greater than DHE greater than sumatriptan greater than 8-OH-DPAT). Pre-treatment with 5-HT2 and 5-HT3 antagonists was not effective. Taken together, these data are consistent with the interpretation that putative 5-HT-1B/1D receptors located on sensory fibres are coupled to inhibition of peptide release and blockade of neurogenic inflammation. An important therapeutic action of ergot alkaloids and sumatriptan in migraine headaches is so defined.
A Nuclear‐Magnetic‐Resonance Study of the Globular Structure of the H1 Histone (1978)

The globular structure of the H1 histone has been studied by 1 H NMR, as an aid to elucidating its mode of action, and also as a model small protein molecule for investigating the capabilities of NMR for gaining information about the tertiary folding when the structure has not been determined by other techniques. Guanidylation of the lysine residues does not effect the capability of the peptide chain to fold into the native globular structure, suggesting that the lysine residues are on the surface of the structure. Partial assignment has been made of some of the ring‐current‐shifted resonances (i.e. resonances from methyl groups of apolar residues which are shifted by their proximity to the magnetic fields of aromatic rings) by a combination of spin‐decoupling experiments and theoretical ring‐current‐shift stimulations. Substitution of the tyrosine residue of histone H1 considerably weakens the globular structure, and observation of specific changes in the perturbed methyl region of the spectra on substitution indicates the aromatic residues giving rise to ring‐current perturbation of specific peaks in the spectrum. Interproton Overhauser effects are demonstrated, arising from throughspace dipole interaction between protons of the aromatic residues and methyl residues, the resonances of which are perturbed by close proximity to the aromatic rings. The results of these experiments confirm the assignments made from the results of the tyrosine modification experiments.
Intelligent content fitting for digital publishing (2006)

One recurring problem in Variable Data Printing (VDP) is that the existing contents cannot satisfy the VDP task as-is. So there is a strong need for content fitting technologies to support high-value digital publishing applications, in which text and image are the two major types of contents. This paper presents meta-Autocrop framework for image fitting and TextFlex technology for text fitting. The meta-Autocrop framework supports multiple modes: fixed aspect-ratio mode, advice mode, and verification mode. The TextFlex technology supports non-rectangular text wrapping and paragraph-based line breaking. We also demonstrate how these content fitting technologies are utilized in the overall automated composition and layout system.
Content-Based Video Copy Detection with Video Signature (2006)

In this paper, an efficient content-based video copy detection method is proposed by using video signatures. Consecutive frame features are mapped into hashes with a time constraint. We employ a winnowing scheme to generate video signatures, which are a subset of the hashes of a video, resulting in notably reduced computing complexity. Experimental results on test videos show that the proposed method is promising.
Detection of acceptor sites for antisense oligonucleotides on native folded RNA by fluorescence-labeled oligonucleotide (2003)

Pyrene-labeled 2'-O-methyloligoribonucleotide (OMUpy) and 5'-Ru(II) complex labeled oligodeoxyribonucleotie (Ru-probe) were prepared as the fluorescence probes to detect acceptor sites of antisense molecules on native folded RNA under the physiological condition. OMUpy showed the remarkable increase of the fluorescence intensity (334-fold at 375 nm) only when hybridized with complementary oligoRNA. When OMUpy was applied to E. coli 16S-rRNA, the fluorescence intensities were increased in a sequence specific manner. The rotational correlation time of Ru-probe complementary to 16S-rRNA were largely dependent on the sequence of Ru-probe. These results suggest that the accessibility of the antisense molecules for RNA can be evaluated by those fluorescent probes.
Le droit à la protection de l'environnement en droit constitutionnel allemand (1994)

Bothe Michael. Le droit a la protection de l'environnement en droit constitutionnel allemand. In: Revue Juridique de l'Environnement, n°4, 1994. pp. 313-318.
Challenges in Taste Research: Present Knowledge and Future Implications (2003)

This chapter gives a brief survey on the chemistry of gustatory taste sensations, i.e. the perception of the basic tastes modalities sour, sweet, salty, bitter as well as umami, and lingual somatosensory sensitivity resulting from temperature and tactile stimulation as well as chemical activation of chemosensory receptors. Some of the present challenges facing researchers in taste chemistry and biochemistry are presented and future perspectives are discussed.
Teaching 1H NMR Spectrometry Using Computer Modeling (2001)

Use of computer modeling for teaching 1H NMR spectroscopy is described. The direction of the induced magnetic field is clarified by displaying the electrostatic potential on the molecule, when the magnetic anisotropy effect is taught. It is possible to show a clear reason why the induced magnetic field occurs in the H-C-C-H direction in acetylene. By viewing an electrostatic potential map, which displays electrostatic potential on the electron density, it is possible for students to visually understand the shielding effect by the electronegativity. This map gives understanding of the difference in chemical shift between CHX3, CH2X2, and CH3X, depending on the number of halogen atoms. Although long-range coupling between the protons arranged in a W shape in the bicyclic systems has been introduced in many textbooks of 1H NMR spectroscopy, there is no clear description of why they happen. A display of the highest occupied molecular orbital aids understanding of why long-range coupling happens in bicyclic systems.
Does Invasion Sequence Affect Community Structure? (1987)

The effects of invasion sequence on community structure were evaluated using aquatic microcosms. Thirty 400—mL beakers were inoculated with replicated subsets of species from a species pool consisting of green, blue—green, and golden algae, ciliates, a rotifer, a dinoflagellate, and euglenoids. These species were added according to four distinct sequences and two different rates over a 23—wk period, resulting in four replicated sets of insular communities. Significant differences in community structure and species richness could be attributed to both sequence of invasion and distance effects. "Priority" effects were found to be important in some but not all instances. Communities could be divided into two primary types that are similar to the two community types previously reported to arise from the assembly of these same taxa according to different invasions schedules.
Bubbles no more: in-plane trapping and removal of bubbles in microfluidic devices (2011)

Gas bubbles present a frequent challenge to the on-chip investigation and culture of biological cells and small organs. The presence of a single bubble can adversely impair biological function and often viability as it increases the wall shear stress in a liquid-perfused microchannel by at least one order of magnitude. We present a microfluidic strategy for in-plane trapping and removal of gas bubbles with volumes of 0.1-500 nL. The presented bubble trap is compatible with single-layer soft lithography and requires a footprint of less than ten square millimetres. Nitrogen bubbles were consistently removed at a rate of 0.14 μL min(-1). Experiments were complemented with analytical and numerical models to comprehensively characterize bubble removal for liquids with different wetting behaviour. Consistent long-term operation of the bubble trap was demonstrated by removing approximately 4000 bubbles during one day. In a case study, we successfully applied the bubble trap to the on-chip investigation of intact small blood vessels. Scalability of the design was demonstrated by realizing eight parallel traps at a total removal rate of 0.9 μL min(-1) (measured for nitrogen).
Antirachitic properties imparted to lettuce and to growing wheat by ultraviolet irradiation. (1924)

Wheat which was grown in the dark (etiolated) was found to have no antirachitic potency. Wheat which was grown in the light and irradiated with mercury vapor lamp conferred protection when fed to rats (10 gm. daily). The same difference in regard to protective action against rickets was observed in vegetables which were irradiated after they had been plucked. Green lettuce leaves from the market were of no value in preventing rickets, whereas after irradiation when fed in same amounts (10 gm.) they had become antirachitic. Therefore, in the plucked as well as in the growing green vegetable, irradiation led to the formation of an antirachitic factor.
An interactive tool for design, simulation, verification, and synthesis of protocols (1994)

Abstract We have developed a user‐friendly CAD graphical tool for the design, verification, simulation, and synthesis of protocols based on an interactive tool for Petri net and state diagram designs. Special features of this tool are: the capability of modeling both control and data flows, reduction and analysis, simulation of network behavior and performance, coding (parametrized protocols and automatic implementation), synthesis (two party protocol and ordinary Petri nets), animation and flexible design. Since it is Petri‐net based, it allows simulation during all design phases and has extensive applications such as parallel debugging and simulation, expert systems, etc. Future enhancements of this tool are also discussed.
The airway response of horses with recurrent airway obstruction (heaves) to aerosol administration of ipratropium bromide (1993)

The airway response to aerosol administration of the anticholinergic agent ipratropium bromide was determined in 8 horses with recurrent airway obstruction (heaves). The reversibility of airway obstruction was confirmed by measuring lung function before and during stabling; and by determining the response to atropine administration (0.02 mg/kg bwt intravenously). The dose-response to ipratropium bromide was determined using a Williams square design experiment in which 25, 50 or 75 micrograms ipratropium bromide/ml (4 ml/100 kg bwt) or the same volume of vehicle was administered to each horse by nebulisation. Lung function was measured before and 1 and 4 h after nebulisation. Vehicle had no effect on lung function. Ipratropium decreased the maximal change in pleural pressure during tidal breathing (delta Pplmax) and pulmonary resistance (RL) and increased dynamic compliance (Cdyn). At the 1 h measurement period, the effect on RL and Cdyn was dose-dependent. A separate experiment demonstrated that the duration of action of ipratropium was between 4 and 6 h.
Improving Shadow Suppression for Illumination Robust Face Recognition (2018)

2D face analysis techniques, such as face landmarking, face recognition and face verification, are reasonably dependent on illumination conditions which are usually uncontrolled and unpredictable in the real world. The current massive data-driven approach, e.g., deep learning-based face recognition, requires a huge amount of labeled training face data that hardly cover the infinite lighting variations that can be encountered in real-life applications. An illumination robust preprocessing method thus remains a very interesting but also a significant challenge in reliable face analysis. In this paper we propose a novel model driven approach to improve lighting normalization of face images. Specifically, we propose to build the underlying reflectance model which characterizes interactions between skin surface, lighting source and camera sensor, and elaborate the formation of face color appearance. The proposed illumination processing pipeline enables generation of the Chromaticity Intrinsic Image (CII) in a log chromaticity space which is robust to illumination variations. Moreover, as an advantage over most prevailing methods, a photo-realistic color face image is subsequently reconstructed, which eliminates a wide variety of shadows whilst retaining the color information and identity details. Experimental results under different scenarios and using various face databases show the effectiveness of the proposed approach in dealing with lighting variations, including both soft and hard shadows, in face recognition.
Biosynthesis of Violacein: Origins of Hydrogen, Nitrogen and Oxygen Atoms in the 2-Pyrrolidone Nucleus (1987)

The biosynthetic origins of the hydrogen, nitrogen and oxygen atoms in the pyrrolidone ring of violacein'were established by an anaylses of the 1H, 13C NMR and MS spectra of its isotope-enriched metabolites. Feeding experiments of [2-2H] and [3-2H2]tryptophans have revealed that the hydrogen in the pyrrolidone ring was derived from the methylene protons at the 3-position of tryptophan. The stereochemical fate of the prochiral hydrogens was determined to be in the retention of the pro-S hydrogen by these feeding experiments using [3R-2H] and [3S”-2H]tryptophans. The incorporation experiment of [α-15N]tryptophan demonstrated that the nitrogen atom in the ring originated from the α-amino group of tryptophan. The incorporation experiment of 18O2 gas verified that all the oxygen atoms of violacein were derived from the molecular oxygen.
Solution structure determination of oligoureas using methylene spin state selective NMR at <sup>13</sup>C natural abundance (2008)

Ability of N,N'-linked oligoureas containing proteinogenic side chains to adopt a stable helix conformation in solution has been described recently. NMR as well as circular dichroism (CD) spectroscopies were employed to gain insight into their specific fold. It is herein proposed to extend the structural information available on these peptidomimetics by an advantageous use of a methylene spin state selective NMR experiment. Homodecoupling provided by the pulse scheme made it possible to readily measure conformation-dependent (3)J(HH) constants that are difficult if not impossible to obtain with standard NMR experiments. Adding those couplings to the NMR restraints improved the quality of the structure calculations significantly, as judged by a ca 30% decrease of the root mean square deviation (RMSD) obtained over an ensemble of 20 structures. Moreover, accurate determination of individual (1)J(CH) couplings within each methylene group revealed uniform values throughout the oligourea sequence, with (1)J(CH) systematically slightly larger for the pro-S hydrogen than for the pro-R. As shown in this study, the methylene spin state selective NMR experiment displays a good intrinsic sensitivity and could therefore provide valuable structural information at (13)C natural abundance for peptidomimetic molecules and foldamers bearing diastereotopic methylene protons.
A new adaptive temporal filter: Application to photosensitive seizure patients (2000)

A new adaptive temporal filtering (ATF) technique was developed to prevent heath hazards due to flicker stimuli from televisions, videos or other displays. This ATF method could reduce frame-to-frame or field-to-field flicker stimuli at around 10-30 Hz which are particularly risky for photosensitive individuals. The present ATF efficacy with a computer simulation was studied in 11 photosensitive epilepsy patients. In order to control visual stimuli and induce photoparoxysmal response (PPR), we employed a problematic scene of the Pocket Monster incident containing 12 Hz red/blue flicker images lasting for 4 s. This image, shown with a 14-inch, television set 2 m in front of subjects, promptly elicited generalized PPR in all cases, while the filtered image did not induce any PPR. These results suggest that the present ATF method may be useful as a preventive measure of photosensitive seizures triggered by stimulative images from televisions or other displays.
Vapor Pressure Apparatus (1958)

A vapor pressure apparatus has been developed which has certain manipulative and accuracy advantages over the well-known isoteniscope. A reliable criterion for complete degassing is inherent in the apparatus. Since degassing is required only once for a series of determinations at various temperatures, the apparatus is well adapted where the amount of sample is limited. The useful temperature range of this apparatus is between the freezing point of mercury (−38.9°C) and the temperature at which the vapor pressure of mercury becomes appreciable (∼0.1 mm at 80°C). The apparatus may not be used if the sample reacts chemically with mercury.