gebhart/patrepeval huggingface dataset:
Digital compensation scheme for coefficient errors of complex filter bank parallel A/D converter in low-IF receivers (2003)

A digital compensation scheme for coefficient errors of a complex filter bank in low-IF receivers is presented. The complex filter bank is employed to suppress DC offset and image signals in the low-IF receivers and relax the requirements on the conversion rate and resolution of A/D converters. The proposed compensation scheme regenerates interference due to the coefficient errors and subtracts it from the digital signal converted by an A/D converter. The proposed scheme also improves the effective resolution of A/D converters.
Proton-Selective <sup>17</sup>O−H Distance Measurements in Fast Magic-Angle-Spinning Solid-State NMR Spectroscopy for the Determination of Hydrogen Bond Lengths (2006)

We present a proton-selective method to determine 17O-1H distances in organic, biological, and biomimetic materials by fast magic-angle-spinning solid-state NMR spectroscopy. This method allows the determination of internuclear distances between specific (17O, 1H) spin pairs selectively. It enables the estimation of medium-range 17O...1H distances across hydrogen bonds in the presence of short-range 17O-1H contacts sharing the same 17O site. The method employs the newly developed symmetry-based radiofrequency pulse sequence SR%@mt;sys@%4%@sx@%1%@be@%2%@sxx@%%@mx@% applied to the protons to achieve heteronuclear dipolar recoupling, while simultaneously decoupling the homonuclear proton dipolar interactions. Fast MAS (50 kHz) and high static magnetic fields (18.8 T) achieve the required proton spectral resolution.
Badania potencjału energetycznego pozostałości poprodukcyjnej z hodowli boczniaka (2012)

Niniejsze opracowanie dotyczy badan potencjalu energetycznego biomasy, obecnie trzeciego co do wielkości naturalnego źrodla energii na świecie. Energia zawarta w biomasie jest najmniej kapitalochlonnym źrodlem energii odnawialnej. Jej pozyskiwanie nie wiąze sie z wprowadzaniem zanieczyszczen do środowiska, przy okazji istnieje mozliwośc pozbycia sie klopotliwych odpadow poprodukcyjnych. Jednak pozyskiwanie energii z biogazu jest dzisiaj inicjatywą malo spopularyzowaną. Przedstawione w tym opracowaniu rozwazania i wyniki badan mogą zachecic potencjalnych inwestorow do zmiany tego stanu rzeczy.
ChemInform Abstract: Chiral Diphosphites Derived from D‐Glucose in the Copper‐Catalyzed Conjugate Addition of Diethylzinc to Cyclohexenone. (2002)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Two methods of asynchronous data compression (1968)

Two new asynchronous data-compression techniques are described. These involve picking out peaks of the signal in one case, and peaks together with certain other important points of slope variation, in the second case. Signal reconstruction is effected by joining these points by straight lines.
ChemInform Abstract: ADDITION OF FUNCTIONAL AMINES TO PERFLUOROALKYLETHYNES (1980)

Abstract Perfluoralkylacetylene (I) reagieren bei der Umsetzung mit Guanidin (II) zu den Perfluoralkyl‐aminopyrimidinen (III).
A Model for SiN<sub>x</sub> CVD Film Growth Mechanism by Using SiH<sub>4</sub> and NH<sub>3</sub> Source Gases (1990)

This paper theoretically explores the SiN x CVD film growth mechanism by means of the ab initio molecular orbital method. In a chemical vapor deposition (CVD) reactor, an SiH 4 and NH 3 gas mixture produces silylenes (X-Si-Y: X and Y are substituents). The insertion of silylene into a surface Si-H or N-H bond is the important part of the CVD film growth mechanism. Following the insertion, H 2 -elimination reaction occurs from the surface. The film growth mechanism explains Si-H and N-H bonds remaining ih an SiN x film and the deviation from the stoichiometry. Based on the mechanism, it is suggested that a new source gas, SiNH 5 , instead of SiH 4 deposits a stoichiometric SiN x film, and that a transition layer exists between the native oxide and the bulk SiN x film.
Mapping of QTLs associated with cold tolerance during the vegetative stage in rice (2003)

Low-temperature stress is an important factor affecting the growth and development of rice (Oryza sativa L.) in temperate and high-elevation areas. Cold stress may cause various seedling injuries, delayed heading and yield reduction due to spikelet sterility. In this study, 181 microsatellite marker loci were used to identify quantitative trait loci (QTLs) associated with cold tolerance at the vegetative stage in 191 recombinant inbred lines (RILs) derived from a cross of a cold-tolerant temperate japonica cultivar (M-202) with a cold-sensitive indica cultivar (IR50). Different temperature regimes were applied in growth chambers on 191 RILs. The temperature regimes imposed in the growth chamber simulated cold-stress injuries at the seedling and late vegetative stages. In this study a major QTL was identified on chromosome 12, designated as qCTS12a, that was closely associated with cold-induced necrosis and wilting tolerance, and accounted for 41% of the phenotypic variation. A number of QTLs with smaller effects were also detected on eight rice chromosomes.
Combustion Features and Emissions of a DI-Diesel Engine with Air Path Optimization and Common Rail Fuel Injection (1998)

<div class="htmlview paragraph">Emission and performance parameters of a medium size, and medium speed <b>D.I</b>. diesel engine equipped with a Miller System, a new developed High Pressure Exhaust Gas Recirculation System (<b>HPEGR</b>), a Common Rail (CR) system and a Turbocharger with Variable Turbine Geometry (<b>VTG</b>) have been measured and compared to the standard engine. While power output, fuel consumption, soot and other emissions are kept constant, nitric oxide emissions could be reduced by 30 to 50% depending on load and for the optimal combination of methods.</div> <div class="htmlview paragraph">Heat release rate analysis provides the reasons for the <b>optimised</b> engine <b>behaviour</b> in terms of soot <b><u>and</u></b> <b>NO<sub>x</sub></b> emissions: The variable Nozzle Turbocharger helps deliver more oxygen to the combustion process (less soot) <u><b>and</b></u> lower the peak gas temperature (less <b>NO<sub>x</sub></b>). The flexible common rail system delivers higher injection pressures and thus more intense fuel-air mixing (less soot), while allowing later combustion phasing for the same <b>bsfc</b> and thus lower peak temperatures (less <b>NO<sub>x</sub></b>).</div> <div class="htmlview paragraph">Therefore the combination of flexible air and fuel paths yields a synergistic optimisation of engine operation in global terms.</div>
Characterization of Serratia marcescens, S. liquefaciens, S. plymuthica and S. marinorubra by Electrophoresis of their Proteinases (1977)

Summary: Supernatant fluids from 5-day cultures in skim milk nutrient broth of 62 strains of Serratia marcescens, 24 of S. liquefaciens, 20 of S. plymuthica and 22 of S. marinorubra, together with 27 representative cultures of other genera, were submitted to agar gel electrophoresis. Proteinase activity was demonstrated by the casein-precipitating reaction. Serratia marcescens produced one to four cathodic proteinases and the patterns were in good accord with the classification of strains into biovars. Serratia liquefaciens often produced anodic and cathodic proteinases with differences between some biovars. Serratia plymuthica strains produced one common cathodic proteinase but no anodic proteinase. Each of the three biovars of S. marinorubra produced a specific proteinase. Other bacteria in the study (Erwinia carotovora, Erwinia chrysanthemi and Aeromonas hydrophila) produced proteinases that differed from the Serratia enzymes in their electrophoretic mobility. The results indicate that proteinase patterns could be useful in the identification of Serratia species and biovars.
Application of a Liquid Crystal Rhinomanometer to Nasal Health Examination. (1997)

A liquid crystal rhinomanometer (LCR) utilizes a highly sensitive liquid crystal which changes color in response to changes in temperature. We employed the LCR in nasal examinations and studied whether or not the nasal expiration image obtained with this equipment could be used to evaluate the health of the nasal cavity. It was found that the LCR was capable of obtaining nasal expiration images in a short period of time from a large number of subjects. Since a significant correlation was observed between resistance through the nasal cavity as determined by the LCR and the area of the nasal expiration image, the LCR was thought to be potentially useful in nasal examinations. The normal nasal expiration image had the following characteristics: (1) the area of the nasal expiration images was approximately 6.7cm2, (2) both areas of the nasal expiration images were nearly equal, (3) the shape of both nasal images was symmetrical, (4) and ellipsoidal, and (5) the expiration image of the frontal region was composed of two parts. Of the subjects with normal nasal cavity morphology, more than 70% satisfied four or five of the above five standards, and those satisfying characteristics (1), (2) and (3) accounted for a high incidence. In contrast, more than 60% of the subjects with abnormal nasal cavity morphology satisfied two or fewer of these standards. Therefore, in nasal health examinations, it is thought to be possible to evaluate the nasal cavity morphology by observing the shape of the nasal expiration image using a liquid crystal rhinomanometer.
Production of platelet-activating factor by stimulated human polymorphonuclear leukocytes. Correlation of synthesis with release, functional events, and leukotriene B4 metabolism. (1987)

Platelet-activating factor (PAF) is a phospholipid mediator of inflammation that is synthesized by several human cell types including polymorphonuclear leukocytes (PMN). We examined the synthesis and release of PAF by stimulated human PMN under several conditions, assayed by the incorporation of [3H]acetate into PAF and by bioassay. PAF synthesis was induced by calcium ionophore A23187 (IoA), opsonized zymosan (OpsZ), and N-formyl-methionyl-leucyl-phenylalanine (FMLP) with the relative order of potency IoA much greater than OpsZ greater than FMLP. A variety of other agonists, including phorbol myristate acetate, an activator of protein kinase C and of PMN functional responses, did not stimulate PAF synthesis. PAF synthesis by PMN in response to IoA, OpsZ, and FMLP was concentration- and time-dependent but release of the phospholipid was not: little PAF (1 to 10%) was released from PMN in suspension regardless of the total amount produced, the agonist, its concentration, the time of incubation, or the concentration of extracellular albumin. This was also the case with functionally altered neutrophils that had been "primed" with cytochalasin B or lipopolysaccharide or that had adhered to surfaces. PAF synthesis was tightly coupled with leukotriene B4 production by adherent PMN as well as by neutrophils in suspension, supporting the hypothesis that the two lipid autacoids may be derived from a common precursor. However, PAF synthesis could be dissociated from aggregation and surface adhesion, indicating that it is not absolutely required for these responses of activated PMN. The total amount of PAF that accumulated, but not the percentage that was released, was altered in adherent PMN compared to cells in suspension. These experiments demonstrate that PAF production and its subsequent processing by human neutrophils are highly regulated events. PAF synthesis is associated with PMN activation, but it is not a requisite for early adhesive responses of neutrophils. Because little of the PAF produced by stimulated PMN is released from the cells, it appears that PAF has an intracellular role in PMN function and/or that it may have novel intercellular effects that do not require release into the fluid phase.
Influence of grinding processes on the surface properties of attapulgite clay : an application of inverse gas chromatography (2009)

International audience
Chain dimensions, entanglement molecular weights and molecular weight distributions of poly(aryl ethers). A combined rheological and MNDO analysis (1992)

Abstract The viscoelastic melt properties of a series of different poly(aryl ethers) were analyzed to obtain information on the corresponding chain statistics, i. e. entanglement molecular weights and characteristic ratios C ∞. The consistent result is that all chain molecules behave as freely rotating chains with values of C ∞ of the order of two to three. MNDO‐calculations were used to obtain a detailed insight into the origin of such a behaviour. The relationship between chemical structure and the corresponding rotational potentials was analyzed. Finally, using a combination of rheological and MNDO (Modified Neglect of Diatomic Overlap) studies, information was derived on the molecular weight distribution of the poly(aryl ethers).
Experience with the Condor distributed batch system (2002)

Condor is a distributed batch system designed to provide convenient access to unutilized workstations while preserving the rights of their owners and to meet the needs of users who are frustrated by the limitations of computing on a single workstation. Several principles have driven the design of Condor. The first is that workstation owners should always have the resources of the workstation they own at their disposal. The second is that access to remote capacity must be easy and should approximate the local execution environment as closely as possible. The third is portability, which is essential because of rapid developments in the workstations on which Condor operates. Mechanisms basic to the operation of Condor, working experience, and software support requirements are outlined.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Kinetics of UV-induced blue luminescence linked with the observation of the local mean index in fiber Bragg gratings (2005)

We exposed H2-loaded optical fibers to cw UV light and simultaneously measured the intensity of the blue luminescence from the fiber core. The UV-induced blue luminescence experiences a non monotonous evolution and thus cannot be correlated to the refractive index changes. However, a quasi-linear relationship has been found between the increase of the blue luminescence and the refractive index changes in the range 5 10-4 < Deltan mean (or Deltan mod) < 2.5 10-3. Using this property, we analyze a fiber Bragg grating by focusing a UV beam probe onto the fiber core and we record the UV-induced blue luminescence at the end of the fiber. By scanning the UV beam along the fiber, we measure thus the axial profile of the refractive index changes with a spatial resolution of 1 mum.
QUANTIFICATION OF SERUM VIRAL LOAD, RESISTANT MUTATIONS AND CLINICAL OUTCOME IN PATIENTS (MRC ALPHA TRIAL) STOPPING ZIDOVUDINE (ZDV) AND COMMENCING DIDANOSINE (ddI) (1994)

Loveday, C; Comber, L; Ayliffe, U; Darbyshire, J H; Babiker, A; Tedder, R S Author Information
Lung surfactant protein SP-C from human, bovine, and canine sources contains palmityl cysteine thioester linkages (1991)

Lung surfactant is a complex mixture of lipids and proteins that coats the alveoli to reduce surface tension and prevent airspace collapse. One of the principal protein constituents, surfactant protein C (SP-C), has been characterized following isolation from human, canine, and bovine sources. In each species, this highly hydrophobic protein is composed of 33-35 amino acids, the differences being due to NH2-terminal heterogeneity. A COOH-terminal leucine is conserved throughout. The cysteines in each species were found by fast atom bombardment mass spectrometry to be present as thioesters of palmitic acid. Acylation of recombinant SP-C with palmityl coenzyme A, followed by characterization before and after release of the acyl group with 1,4-dithiothreitol, provided corroborating evidence for the native structure.
Endogenous n-3 Polyunsaturated Fatty Acids Delay Progression of Pancreatic Ductal Adenocarcinoma in Fat-1-p48Cre/+-LSL-KrasG12D/+ Mice (2012)

Preclinical studies suggest that diets rich in omega-3 polyunsaturated fatty acids (n-3 PUFAs) may be beneficial for prevention of pancreatic cancer. Nutritional intervention studies are often complex, and there is no clear evidence, without potential confounding factors, on whether conversion of n-6 PUFAs to n-3 PUFAs in pancreatic tissues would provide protection. Experiments were designed using n-3 fatty acid desaturase (Fat-1) transgenic mice, which can convert n-6 PUFA to n-3 FAs endogenously, to determine the impact of n-3 PUFAs on pancreatic intraepithelial neoplasms (PanINs) and their progression to pancreatic ductal adenocarcinoma (PDAC). Six-week-old female p48(Cre/+)-LSL-Kras(G12D/+) and compound Fat-1-p48(Cre/+)-LSL-Kras(G12D/+) mice were fed (AIN-76A) diets containing 10% safflower oil for 35 weeks. Pancreata were evaluated histopathologically for PanINs and PDAC. Results showed a dramatic reduction in incidence of PDAC (84%; P < .02) in Fat-1-p48(Cre/+)-LSL-Kras(G12D/+) mice compared to p48(Cre/+)-LSL-Kras(G12D/+) mice. Importantly, significant reductions of pancreatic ducts with carcinoma (90%; P < .0001) and PanIN 3 (~50%; P < .001) lesions were observed in the compound transgenic mice. The levels of n-3 PUFA were much higher (>85%; P < .05-0.01) in pancreas of compound transgenic mice than in those of p48(Cre/+)-LSL-Kras(G12D/+) mice. Molecular analysis of the pancreas showed a significant down-regulation of proliferating cell nuclear antigen, cyclooxygenase-2, 5-lipoxygenase (5-LOX), 5-LOX-activating protein, Bcl-2, and cyclin D1 expression levels in Fat-1-p48(Cre/+)-LSL-Kras(G12D/+) mice compared to p48(Cre/+)-LSL-Kras(G12D/+) mice. These data highlight the promise of dietary n-3 FAs for chemoprevention of pancreatic cancer in high-risk individuals.
BSLP: Markovian Bivariate Spread-Loss Model for Portfolio Credit Derivatives (2009)

BSLP is a two-dimensional dynamic model of interacting portfolio-level loss and spread (more exactly, loss intensity) processes. The model is similar to the top-down HJM-like frameworks developed by Schonbucher (2005) and Sidenius-Peterbarg-Andersen (SPA) (2005), however is constructed as a Markovian, short-rate intensity model. This property of the model enables fast lattice methods for pricing various portfolio credit derivatives such as tranche options, forward-starting tranches, leveraged super-senior tranches etc. A non-parametric model specification is used to achieve nearly perfect calibration to liquid tranche quotes across strikes and maturities. A non-dynamic version of the model obtained in the zero volatility limit of stochastic intensity is useful on its own as an arbitrage-free interpolation model to price non-standard index tranches off the standard ones.
LOGISTICS FOR THE CONDUCT OF CONTROLLED OIL SPILL EXPERIMENTON BIORESTORATION OF FRESHWATER WETLANDS (2001)

ABSTRACT The St. Lawrence River, situated between Canada and the United States, provides a major transport route in North America for the transport of millions of tons of crude oil, condensates, and refined products each year. In addition, as one of the largest rivers in the world, it is of major ecological significance. For example, over 55,000 hectares of wetlands are found along the St. Lawrence alone. These areas provide habitat for wildlife, the nurseries for fisheries, and control coastal erosion are highly vulnerable to oil spills. Furthermore, as traditional oil spill cleanup methods may be ineffective or cause more damage, emergency responders are considering less intrusive methods such as biorestoration as operational countermeasures. A biorestoration experiment was designed to measure the effectiveness of this method in the St. Lawrence River. To conduct this experiment, 1,200 liters of crude oil were to be spilled in a controlled manner over an experimental zone of 750 m2 in a marsh area. To obtain regulatory approvals from governmental agencies, environmental groups and, more importantly, to avoid the “not in my backyard” protests from the local communities, site selection, emergency planning, contingency measures, and especially community meetings, were all necessary steps towards the acceptance of the project. This controlled spill was done in June 1998 without any incident. Sampling of the experimental site will be completed in the fall of 2000. This paper aims to provide insights on the steps needed to gain acceptance from concerned citizens for the conduct of a controlled oil spill experiment.
Intraocular Pressure in Premature Low Birth Weight Infants (2016)

IOP is higher and CCT is thicker in premature infants compared to adults; however, there was no correlation between IOP and CCT. [J Pediatr Ophthalmol Strabismus. 2016;53(5):300-304.].
A method for improving the efficiency of DNA extraction from clotted blood samples (2019)

Our proposed modified salting-out method is simple and efficient for the isolation of DNA from old blood clot samples. It is both easy to use and is of low cost in routine laboratory tasks.
127 DIGESTIVE FUNCTION FOLLOWING INTESTINAL TRANSPLANTATION. (1996)

In order to characterize postoperative return of intestinal allograft function following transplantation, we have measured mucosal disaccharidase levels and performed fat balance studies and oral vitamin E tolerance tests (100 U/kg) in children following successful surgery. Immunosuppression consisted of prednisone and either tacrolimus or Neoral. RESULTS: Mucosal histology was normal at time of study in all. Disaccharidase levels, which were measured 10 times in 7 patients 15-412 days post-operatively, equalled: Table Maltase activity tended to fall after transplantation (r=-0.64, p < 0.05), but other enzyme levels did not change in relation to surgery. Oral vitamin E tolerance tests that were performed in 4 patients 68-300 days after surgery demonstrated increases over baseline varying directly with time after transplant (Figure). Total fat absorption ranged from 81% to 96%. Improvements in fat absorption were inconsistent after surgery and did not correlate with absorption of vitamin E. CONCLUSION: These results indicate a considerable capacity for mucosal carbohydrate hydrolysis by intestinal allografts soon after transplantation. Fat assimilation slowly improves and may be limited by reestablishment of lymphatic drainage.