gebhart/patrepeval huggingface dataset:
Focal fatty infiltration of the liver in acute alcoholic liver injury: hot spots with radiocolloid SPECT scan. (1989)

We present herein a case of focal fatty infiltration of the liver, in which extremely unusual findings were exhibited on single-photon emission computed tomography (SPECT) of the radiocolloid liver scan. Liver scan was performed on a 46-yr-old patient with a clinical picture of acute alcoholic hepatitis. Multiple hot spots were demonstrated by SPECT scan, and these lesions corresponded to focal fatty infiltration, which were proven by computed tomography (CT). These hot spots disappeared rapidly in accordance with the improvement in fatty change on CT, and with the improvement in the clinical picture. The hot spots in this case were believed to represent the nonuniform intrahepatic shuntings, which presumably caused the development of focal fatty infiltration as well. SPECT may be useful in detecting and monitoring the alteration of hepatic circulation in alcoholic patients with focal fatty infiltration of the liver when planar colloid liver scan shows a mottled pattern.
A Bioinspired Feature-Projection-Based Approach to Electromyographic Pattern Recognition Based for High Dimensional Sparse Sensor Data (2015)

The paper presents an electromyographic pattern recognition for sensor fusion able to discern motions of hand with a small number of training samples. We propose a learning algorithm able to classify estimate class statistics from a limited training set size. A Wavelet Packet Decomposition performs feature extraction. A sparse Principal Component Analysis projects the features in a lower dimensionality space. Classification is performed through multi-layer Perceptron. We employed sparse Principal Component Analysis because it is insensitive to the curse dimensionality problem differently from standard Principal Component Analysis that fails to capture discriminatory information in low-variance sensor data. The approach mitigates drawbacks of the training data collection as time consumption and acquisition difficulties. The latter are particularly relevant in case of high degrees of user disability, in which long sessions of training become unfeasible due to stress and exertion.
Das deutsche Kapital in Industrie und Handel Rußlands von 1850 bis 1876 (1968)

Article Das deutsche Kapital in Industrie und Handel Rußlands von 1850 bis 1876 was published on February 1, 1968 in the journal Jahrbuch für Wirtschaftsgeschichte / Economic History Yearbook (volume 9, issue 2).
Abstract 12724: Smoking is Associated with Presence of Vulnerable Plaques: A Three Vessel Optical Coherence Tomography Study (2013)

Background: Smoking is associated with high incidence of cardiovascular events including acute coronary syndrome (ACS). We sought to characterize coronary plaques in patients with ongoing smoking u...
Structural and immunological characterization of the amino-terminal domain of mammalian neural cell adhesion molecules. (1986)

The neural cell adhesion molecules (N-CAMs) are a group of structurally and immunologically related glycoproteins found in vertebrate neural tissues. Adult brain N-CAMs have apparent molecular weights of 180,000 and 140,000 with an additional form at 120,000 in murine brain. In embryonic brain, N-CAMs are represented by a highly sialylated form with an apparent molecular weight greater than 180,000. We have used monoclonal antibodies that cross-react with N-CAMs of various mammalian species to purify N-CAMs from adult murine and bovine brains and from embryonic murine brains. We determined the amino acid sequences of the amino-terminal domains of these molecules: Leu-Gln-Val-Asp-Ile-Val-Pro-Ser-Gln-Gly-Glu-Ile-Ser-Val-Gly-Glu-Ser. This sequence is highly conserved among all three forms of adult murine brain N-CAM as well as embryonic murine brain N-CAM and adult bovine brain N-CAM. Based on this sequence, we synthesized an undecapeptide and used it to raise a site-directed polyclonal antiserum. This antiserum reacted with the intact N-CAM in liquid phase radioimmunoassays, immunoblotting experiments, and immunofluorescent labeling of cells. The antiserum also reacted with N-CAMs in extracts of brain tissues from different species, confirming the highly conserved nature of the amino-terminal domain of mammalian N-CAMs. Immunofluorescence experiments indicated that this domain resides on the outer surfaces of cells that express N-CAMs, in both primary neuronal cell culture and in cell lines.
Efficient <i>k</i>‐space sampling by density‐weighted phase‐encoding (2003)

Acquisition-weighting improves the localization of MRI experiments. An approach to acquisition-weighting in a purely phase-encoded experiment is presented that is based on a variation of the sampling density in k-space. In contrast to conventional imaging or to accumulation-weighting, where k-space is sampled with uniform increments, density-weighting varies the distance between neighboring sampling points Deltak to approximate a given radial weighting function. A fast, noniterative algorithm has been developed to calculate the sampling matrix in one, two, and three dimensions from a radial weighting function w(k), the desired number of scans NA(tot) and the nominal spatial resolution Deltax(nom). Density-weighted phase-encoding combines the improved shape of the spatial response function and the high SNR of acquisition-weighting with an extended field of view. The artifact energy that results from aliasing due to a small field of view is substantially reduced. The properties of density-weighting are compared to uniform and to accumulation-weighted phase-encoding in simulations and experiments. Density-weighted (31)P 3D chemical shift imaging of the human heart is shown which demonstrates the superior performance of density-weighted metabolic imaging.
Discovery of a new type of layered structure by high resolution electron microscopy and electron-induced X-ray microanalysis (1983)

Combined high resolution electron microscopy, energy dispersive X-ray emission microanalysis, and computer simulation studies indicate that a layered intermediate phase exists in the Bi–Mo–W–O system, its idealized composition being Bi2(W,Mo)12O35; the structure consists of Bi2O3 sheets interleaved with (W,Mo)2O5 sheets which contain crystallographic shear planes that are perpendicular to the layers.
Human IgM detection using an optical fibre long period grating sensor (2017)

An optical fibre long period grating sensor coated with three layers of poly (allylamine hydrochloride) and silica core gold shell nanoparticles was developed for the detection of human IgM. Three different concentrations of IgM suspension (19nM, 83nM and 0.3 μM) were detected. The sensor response time is less than 8 minutes and the binding of IgM can be observed dynamically at a concentration of 0.3 μM. The binding constant of IgM on the LPG sensor is 23.9 (pM) <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-1</sup> based on the fitting of the Langmuir adsorption isotherm. The sensitivity of the LPG sensor is calculated as 11 nm/ (ng/mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> ) with a limit of detection of 0.0218 ng/mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> .
Electronic Properties of N-Heteroaromatics. XVI. Charge Transfer Properties of Pyrazolone Antipyreties. On the Complex Formation of Aminopyrine with Benzoic Acid and Salicylic Acid (1968)

The anomalous phenomena with respect to solubility and coloration, which are observed when aminopyrine is combined with either benzoic acid or salicylic acid, have been studied by solubility method, refractometry, and spectrophotometry, and the following findings have been obtained from the experimental data : (1) a formation of chargetransfer complexes of 1 : 1 molar ratio between aminopyrine and either benzoic acid or salicylic acid were presumed, (2) from the comparative study of pyrazolone derivatives, it was concluded that 4-amino or 4-substituted amino moiety on the pyrazolone portions was found to be indispensable for the complex formation, and (3) as there were considerable differences between stability constants obtained by solubility method and those obtained from Benesi-Hildebrand plots, it was presumed that charge-transfer force might not be a sole driving force of the interaction.
SYSTEM STUDIES FOR THE ADTF: TARGET AND MATERIALS TEST STATION (2001)

No abstract prepared.
Prenatal parental tobacco smoking, gene specific DNA methylation, and newborns size: the Generation R study (2015)

Maternal smoking is inversely associated with IGF2DMR methylation in newborns, which can be one of the underlying mechanisms through which smoking affects fetal growth.
New Vertebral Body Impactors for Posterolateral Decompression of Burst Fracture (1993)

A new type of impactor was developed to decompress the anterior aspect of the vertebral body. These instruments are particularly useful for cases of burst fracture.
Long-Term Results of Primary Stenting for Long and Complex Iliac Artery Occlusions (2006)

Long-term results of iliac recanalization are excellent without major complications if the procedure is technically successful. The endovascular procedure can be an alternative to an iliofemoral or aortobifemoral bypass in a high risk population.
An adaptive chirp modem for medium data rates (1989)

The authors describe an experimental HF modem which uses serially transmitted chirp signals swept across a voice channel bandwidth. The modem is able to adaptively excise interference from other HF users, and has inherent tolerance to frequency selective fading and additive white Gaussian noise. A number of experimental signal formats have been incorporated so as to achieve data transmission at rates of 75, 150, 300 and 600 bits per second, and error correction via interleaved Golay code is included.
Variably Elastic Hydrogel Patterned via Capillary Action in Microchannels (2006)

Agarose hydrogels of varied elastic modulus can be patterned into 100-microm-wide channels with wall heights of 60 microm. After modifying the hydrogels with chloroacetic acid (acid gels), they are amenable to modification with amine-containing ligands using EDC-NHS chemistry. Using both rheometry and atomic force microscopy (AFM) nanoindentation measurements, the elastic modulus of unmodified hydrogels increases linearly from 3.6 +/- 0.5 kPa to 45.2 +/- 5.5 kPa for 0.5 to 2.0 wt/vol % hydrogel, respectively. The elastic modulus of acid gels is 2.2 +/- 0.3 kPa to 16.2 +/- 1.6 kPa for 0.5 to 2.0 wt/vol %, respectively. No further changes were measured after further modifying the acid gels with fibronectin. Confocal images of rhodamine-modified acid gels show that the optimal filling viscosity of the agarose solutions is between 1 and 4 cP. This new method of patterning allows for the creation of substrates that take advantage of both micron-scale patterns and variably elastic hydrogels.
Regulation of type III secretion system 1 gene expression in<i>Vibrio parahaemolyticus</i>is dependent on interactions between ExsA, ExsC, and ExsD (2010)

Vibrio parahaemolyticus ExsA is the transcriptional regulator for type III secretion system 1 (T3SS1) while ExsD blocks T3SS1 expression. Herein we show that deletion of exsC from V. parahaemolyticus blocked synthesis of T3SS1-dependent proteins under inducing conditions (contact with HeLa cells), while in trans complementation of the ΔexsC strain with wild-type exsC restored protein synthesis. Under non-inducing conditions (Luria broth plus salt), in trans expression of exsC in a wild-type strain resulted in synthesis and secretion of T3SS1-dependent proteins. Deletion of exsC does not affect the synthesis of ExsA while expression of T3SS1 genes is independent of ExsC in the absence of ExsD. Co-expression of recombinant proteins with different antigenic tags demonstrated that ExsC binds ExsD and that the N-terminal amino acids of ExsC (positions 7 to 12) are required for binding. Co-expression and purification of antigentically tagged ExsA and ExsD demonstrated that ExsD directly binds ExsA and presumably prevents ExsA from binding promoter regions of T3SS1 genes. Collectively these data demonstrate that ExsD binds ExsA to block expression of T3SS1 genes, while ExsC binds ExsD to permit expression of T3SS1 genes. ExsA, ExsC, and ExsD from V. parahaemolyticus appear to be functional orthologues of their Pseudomonas aeruginosa counterparts.
Complementary and antagonistic effects of IL‐3 in the early development of human megakaryocytes in culture (1998)

The effect of IL-3 on the early steps in the growth and development of megakaryocytes (MK) in culture has been studied. Although thrombopoietin (TPO) by itself could support the development of mature CD41+ MK from pre-MK, the number of cells produced was greatly augmented by the addition of IL-3 and SCF. IL-3 was also able to support the growth of MK colonies in semi-solid media (CFU-MK). The CD41+ cells that developed in suspension cultures containing IL-3 differed phenotypically from those that developed without this agent. Cells grown in the presence of IL-3 lost CD34 expression more rapidly, expressed lower levels of the platelet glycoproteins gpIIb-IIIa and Ib and achieved lower degrees of polyploidy than in the absence of IL-3. The inhibitory effects of IL-3 were not a consequence of the dilution of the mature cells by increased numbers of immature cells since it was observed under conditions in which IL-3 did not stimulate MK growth. The results obtained in these cultures suggest that IL-3 plays an important role in early MK development, but inhibits further maturation after endoreduplication begins. Thus, prolonged contact with IL-3 results in the appearance of cells that do not mature normally.
Rapidly converging adaptive state-space-based multichannel active noise control algorithm for reduction of broadband noise (2007)

Rapidly changing spectra may lead to performance limitations in adaptive systems for broadband active noise control, especially in multichannel systems. This paper presents techniques to address the negative consequences of two main causes. First, the dynamics of the transfer paths between the noise control sources and the error microphones is compensated for by using a regularized state-space based adaptive filtered-error scheme. Second, for the reference signals a modified adaptive scheme is used, taking into account the nonwhiteness of these signals as well as the correlation between the individual signals. Examples are given for simulated data and for real-time implementations. [This work was partly supported by EC Contract 501084 (InMAR).]
Use of polypyrrole in catalysts for low temperature fuel cells (2013)

Carbon materials, especially Vulcan XC-72 carbon black, are the most widely used catalyst support in low temperature fuel cells. Several disadvantages of these catalyst supports, however, limit the catalyst performance leading to reduced fuel cell performance and durability: low resistance to corrosion at high potentials, micropores leading to limited accessible surface, impermeability to gases and liquids, and no proton conductivity. Therefore, development of novel supports or modified carbon materials is essential to commercialization of low temperature fuel cell technology. Due to unique metallic/semiconductor characteristics along with excellent environmental stability, facile synthesis and high conductivity, polypyrrole (PPy), a member of the conjugated heterocyclic conducting polymers, has been considered the most promising alternative to carbon supports in fuel cells. Extensive research on PPy-containing catalysts has been reported in the last twenty years. This paper systematically and critically reviews the progress and main achievements of PPy use in both anode and cathode catalysts for low temperature fuel cells. Insight into the remaining challenges and future research directions is also discussed.
A Common Progenitor for Retinal Astrocytes and Oligodendrocytes (2010)

Developing neural tissue undergoes a period of neurogenesis followed by a period of gliogenesis. The lineage relationships among glial cell types have not been defined for most areas of the nervous system. Here we use retroviruses to label clones of glial cells in the chick retina. We found that almost every clone had both astrocytes and oligodendrocytes. In addition, we discovered a novel glial cell type, with features intermediate between those of astrocytes and oligodendrocytes, which we have named the diacyte. Diacytes also share a progenitor cell with both astrocytes and oligodendrocytes.
Landscape scale variation in nectar amino acid and sugar composition in a Lepidoptera pollinated orchid species and its relation with fruit set (2013)

Summary Understanding landscape scale variation in reproductive and pollination success is a major aim of plant population biology. A potential determinant of reproductive success that has received surprisingly little attention so far is variation in nectar chemical composition across plant individuals and populations. Using the L epidoptera pollinated fragrant orchid ( G ymnadenia conopsea ) as a model species, we aimed at providing a first account of landscape scale variation in nectar amino acid and sugar composition, its environmental drivers, and how it may affect plant fruit set. Nectar was sampled from 986 flowers from 296 individuals across eleven discrete populations of the G . conopsea . The proportions of sugars and amino acids were determined using high‐performance anion‐exchange chromatography. Nectar composition was related to soil characteristics of the populations, and to fruit set, using linear mixed models. Approximately, 20% of the variance in nectar traits was situated between populations, whereas the highest proportion of variance ( c . 45%) was found among flowers within individuals. Soil carbon and nitrogen content affected both nectar concentration and composition. Furthermore, fruit set of G . conopsea individuals was found to be significantly related to nectar amino acid and sugar composition. Synthesis . These results show that landscape scale variation in nectar amino acid and sugar composition should be taken into account in future studies of plant reproductive success. Furthermore, there is also high within‐plant variation in both nectar amino acid and sugar composition. This variation may reduce geitonogamous pollination, but it may also limit rapid pollinator‐mediated selection on nectar composition.
Identification of the Gold-Lithium Defect L1 in Silicon with the Trigonal Centre Au2--(Li+)3 by Electrical, Optical and Magnetic Resonance Spectroscopy (2000)

N-type silicon doped with gold and lithium was investigated by Electron Paramagnetic Resonance (EPR) and Deep Level Transient Spectroscopy (DLTS), using two sets of samples with different defect concentrations of both gold and lithium. Photoluminescence (PL) on both sets of samples allowed to correlate the results of EPR and DLTS measurements. It is shown that the gold–lithium donor state, Au2––(Li+)3, with trigonal symmetry is most likely the origin of the well known DLTS level L1 at EC – 0.41 eV.
Identification of germ-line E-cadherin mutations in gastric cancer families of European origin. (1998)

E-cadherin germ-line mutations have recently been described as a molecular basis for early-onset familial gastric cancer in Maori kindred. We screened 18 gastric cancer families of European origin for germ-line mutations to determine the proportion in which E-cadherin mutations occur and the clinical characteristics of the affected families. Truncating mutations were identified in three kindred with familial diffuse gastric cancer. In these families, the age of onset of gastric cancer was variable, the penetrance was incomplete, and one kindred contained individuals with cancers at other sites. Here, we show that a proportion of diffuse gastric cancer families of European origin have germ-line E-cadherin mutations; however, these mutations are absent in intestinal gastric cancer families.
Hepatitis Infections in the Day-Care Setting (1994)

The hepatitis session reviewed current knowledge of the epidemiology and public health importance of hepatitis A (HAV) and hepatitis B virus (HBV) in day care centers (DCCs), current recommendations and prevention measures, areas that need additional research, and the potential for new preventive measures. HEPATITIS A The clinical characteristics, modes of transmission, risk factors for day-care-related outbreaks, and characteristics of hepatitis A virus outbreaks have been well described previously.1 Within the day-care setting, HAV is transmitted via the fecal-oral route, either person to person (between children and staff); via contaminated food (often in association with individuals who prepare food and care for diapered children); or possibly via fomites on contaminated surfaces or toys. In young children, in contrast to adults, hepatitis A may be difficult to recognize, as clinical illness is frequently nonspecific and mild, consisting primarily of malaise, nausea, fever, and diarrhea. Fewer than 5% of children under 3 years of age and only about 10% of those 4 to 6 years of age develop jaundice and are thus easily recognized as having hepatitis. Consequently, recognition of hepatitis A outbreaks in the day-care setting is often dependent upon recognizing hepatitis A in adults (parents or staff) who have had contact with day-care centers (DCCs). The initial recognition of DCCs as important sources of hepatitis A virus transmission both within the centers and in the communities they serve occurred in the mid-1970s.2,3 Early studies focused on describing the characteristics of DCCs in which hepatitis A outbreaks occurred, including DCCs with large numbers (≥50) of children in diapers and centers that are open more than 15 hours per day.2
ChemInform Abstract: Oxidative Cleavage of Mono‐, Di‐, and Trisubstituted Olefins to Methyl Esters Through Ozonolysis in Methanolic NaOH. (1993)

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.
Efficient Joints for Graphite/Epoxy Structures (1985)

Bonded joints perform well through wide temperature range. Tests indicate significant improvement in joint efficients available through geometric modifications and hybrid material additions at adherent interfaces. Material modifications consisted of placing S-glass polyimide fabric in joint between adherents. Most fabric interface specimens delaminated between two fabric plies as opposed to failing in base adherents.
Innovations in Optical Transport for Mass-Market Optically Enabled Disaster Recovery Services (2005)

Since September 11, 2001, the importance of enterprise Disaster Recovery (DR) plans has been well documented. Events such as the northeast blackout of 2003 have further accentuated the value of an enterprise having a comprehensive DR plan. Additionally, regulatory pressures and the ongoing evolution toward more e-centric business models continue to put a heavy burden on IT managers to ensure the availability of the computing environment. At the same time, however, a tremendous decrease in IT spending has led IT managers to focus on those expenditures that provide the most immediate return.
Effects of Cyclooxygenase‐1 and ‐2 Gene Disruption on<i>Helicobacter pylori</i>–Induced Gastric Inflammation (2006)

COX deficiency enhances H. pylori-induced gastritis, probably via TNF-alpha expression. COX-2, but not COX-1, deficiency suppresses H. pylori-induced cell proliferation.