gebhart/patrepeval huggingface dataset:
Purification, Cloning, and Tissue Distribution of a 23-kDa Rat Protein Isolated by Morphine Affinity Chromatography (1990)

A 23-kDa (p23k) rat brain protein was stereospecifically eluted from a 14 beta-bromoacetamidomorphine affinity column, purified to apparent homogeneity by reverse phase HPLC, and partially sequenced. Three degenerate oligodeoxynucleotide probes were synthesized based on this partial amino acid sequence. A rat brain cDNA library was screened using these probes, and a full-length cDNA was isolated. The deduced protein, 187 amino acids long, is rich in glutamic and aspartic acid residues, endowing p23k with a net negative charge at neutral pH. The protein lacks a signal sequence as well as any transmembrane domains. Based on predictions of secondary structure, p23k is a globular protein composed of 30% alpha-helices and 18% beta-pleated sheets. Northern blot analysis revealed p23k transcripts in rat brain, liver, and the mouse x rat neuroblastoma-glioma NG108-14 cell line. Although not an opioid receptor itself, this protein may be associated with such a receptor or be related to a protein that has been shown to be cross-linked to the opioid peptide beta-endorphin.
Conversion of cellulose to polyols over promoted nickel catalysts (2012)

Sorbitol is one of the key platform chemicals that can be applied to several industrial applications, including bio-fuels and hydrogen production. Presently there is no commercial heterogeneous catalytic process to produce sorbitol from cellulose due to the low yield and high cost of noble metals required for the conversion. In this paper we describe an aqueous phase hydrolysis–hydrogenation process to convert cellulose to sorbitol using a cheap Ni based catalyst. Monometallic Ni catalysts showed little activity for the reaction, but with the addition of a small amount of Pt to the Ni catalyst (Ni : Pt = 22 : 1 atom ratio), the activity was greatly enhanced. Results showed that the bimetallic Ni–Pt catalysts supported on mesoporous alumina gave a hexitol (sorbitol + mannitol) yield of 32.4% compared to only 5% with a Ni catalyst. Moreover, Ni–Pt supported on a mesoporous beta zeolite support provided even higher yield of 36.6%. These results were obtained after only 6 hours of run at 200 °C and 50 bar H2 pressure (at room temperature). The presence of a small amount of Pt promotes the protonation of water and hydrogen molecules, which spill over to Ni sites creating in situ acid sites to catalyse hydrolysis of cellulose.
Some aspects of band-pass filtering of surface waves (1973)

abstract Narrow band-pass filtering of multi-mode surface-wave signals can be used to extract information concerning the group velocities and spectral amplitudes of each mode. A detailed examination of narrow band-pass filtering shows the effect of epicentral distance and the shape of the group-velocity curve upon the filtered signal. With this knowledge, the filtered signal can be used to make accurate estimates of the spectral amplitudes of each mode. A rectangular and a Gaussian filter are considered in detail. A numerical example is provided to indicate the values and limitations of the technique for determining the spectral amplitudes of each mode.
Platelet-Derived Growth Factor Delivery via Nanofibrous Scaffolds for Soft-Tissue Repair. (2010)

The use of a controlled, "dial-able" delivery system allows for a more tightly regulated release of factors to promote repair of soft- and hard-tissue defects for clinical application.
Characterization of a methyljasmonate‐inducible lipoxygenase from barley (<i>Hordeum vulgare</i> cv. Salome) leaves (1998)

We found three methyl jasmonate-induced lipoxygenases with molecular masses of 92 kDa, 98 kDa, and 100 kDa (LOX-92, -98 and -100) [Feussner, I., Hause, B., Vörös, K., Parthier, B. & Wasternack, C. (1995) Plant J. 7, 949-957]. At least two of them (LOX-92 and LOX-100), were shown to be localized within chloroplasts of barley leaves. Here, we describe the isolation of a cDNA (3073 bp) coding for LOX-100, a protein of 936 amino acid residues and a molecular mass of 106 kDa. By sequence comparison this lipoxygenase could be identified as LOX2-type lipoxygenase and was therefore designated LOX2:Hv:1. The recombinant lipoxygenase was expressed in Escherichia coli and characterized as linoleate 13-LOX and arachidonate 15-LOX, respectively. The enzyme exhibited a pH optimum around pH 7.0 and a moderate substrate preference for linoleic acid. The gene was transiently expressed after exogenous application of jasmonic acid methyl ester with a maximum between 12 h and 18 h. Its expression was not affected by exogenous application of abscisic acid. Also a rise of endogenous jasmonic acid resulting from sorbitol stress did not induce LOX2:Hv:1, suggesting a separate signalling pathway compared with other jasmonate-induced proteins of barley. The properties of LOX2:Hv:1 are discussed in relation to its possible involvement in jasmonic acid biosynthesis and other LOX forms of barley identified so far.
An image recognition system for crop disease identification of paddy fields in Sri Lanka (2009)

The classification and recognition of paddy diseases are of the major technical and economical importance in the agricultural industry. To automate these activities, like texture, color and shape, disease recognition system is feasible. The goal of this research is to develop an image recognition system that can recognize paddy diseases.
FCA Software Interoperability (2008)

www.upriss.org.uk Abstract. This paper discusses FCA software interoperability from a variety of angles: because the central FCA structures, formal contexts and concept lattices, can be represented in non-FCA software, interoperability with such software is of relevance. The non-FCA software in question is spreadsheet, relational database, graph and vector graphics software. The simplest approach to interoperability consists of providing file format conversion tools, such as FcaStone, which is therefore also discussed in this paper. Interoperability can be hindered by social factors, i.e. if the FCA researchers do not want to use non-FCA software. This issue is investigated with respect to software-derived graph layouts of lattice diagrams. An experiment that compares different software-derived lattice diagram layouts is conducted and leads to a surprising result. 1
Thermal Spraying of Basalt for Abrasion Protective Coatings using WSP, HVOF and APS (2005)

Abstract Basalt, an abundant and inexpensive natural raw material, is a glass-ceramic with good abrasion-wear resistance and chemical stability. Traditionally cast-shaped into flag stones, pipe linings and even fibrous composites, basalt can be processed by thermal spraying, potentially yielding highly dense coatings with few defects. Such overlays can seal base materials for wear applications in corrosive environments. Basalt coatings are produced by a number of common thermal spray techniques, including water-stabilized plasma spraying (WSP), high-velocity oxy-fuel (HVOF) and conventional air plasma spraying (APS). In-flight particle temperature and velocities are monitored with a particle diagnostic system (DPV 2000). Using different feedstock size cuts, the attainable ranges of particle states are delineated. Spray parameters are selected for each of the processes, based on deposition efficiency and porosity criteria. For typical conditions, particle velocities vary from 100 m/sec for WSP to 800 m/sec with HVOF. The microstructure and composition of the coatings are evaluated by scanning electron microscopy (SEM) and EDS-SEM. Crystal phase analysis is performed by X-ray diffraction (XRD). Abrasion resistance (ASTM G-65) and hardness (Vickers) of the as-sprayed coatings are compared. The microstructures and tribological properties are related to the particle size, temperature and velocity distributions, which are distinctly different for each process.
Plasma heating by relativistic electron beams. II. Return current interaction (1975)

The combined interactions of the relativistic two-stream instability and return current driven Buneman/ion sound instability are investigated by numerical simulation for a beam-to-plasma density ratio ≈10−1 and γ=2−8. In this regime the evolution of the two-stream instability is relatively unaffected by the return current instability. The growth rate of the Buneman instability drops sharply when trapping of plasma electrons by the unstable Buneman waves occurs, but wave growth continues at a much reduced rate until other processes, e.g.,ion acceleration, wave scattering, and nonlinear Landau damping set in. Ions are heated by the return current and this heating is almost independent of the initial beam γ for constant return current. The bulk of the electron distribution is heated, whereas in the absence of a return current the two-stream instability primarily produces only energetic tails. The total plasma electron energy after several hundred plasma periods is proportional to the beam energy. The effective collision frequency of the plasma electrons due to microturbulence is typically 0.2?0.4 ωi, where ωi is the ion plasma frequency. In the strong turbulence created by the electron beam and the return current, the wave energy spectrum scales as ‖Ek‖2≈k−2.
Wolfhart Pannenberg and translated by R. A. Wilson, Basic Questions in Theology; E. Frank Tupper, The Theology of Wolfhart Pannenberg; Allan D. Galloway, Wolfhart Pannenberg (1975)

Wolfhart Pannenberg and translated by R. A. Wilson, Basic Questions in Theology; E. Frank Tupper, The Theology of Wolfhart Pannenberg; Allan D. Galloway, Wolfhart Pannenberg Get access Basic Questions in Theology. Volume III. By Wolfhart Pannenberg Translated by R. A. Wilson Pp. ix+213. London: S.C.M. Press, 1973. £3.75.The Theology of Wolfhart Pannenberg. By E. Frank Tupper Pp. 322. London: S.C.M. Press, 1974. £4.75.Wolfhart Pannenberg. By Allan D. Galloway Pp. 143. London: Allen & Unwin, 1973. £3.25. Maurice Wiles Maurice Wiles Search for other works by this author on: Oxford Academic Google Scholar The Journal of Theological Studies, Volume XXVI, Issue 1, April 1975, Pages 241–244, https://doi.org/10.1093/jts/XXVI.1.241 Published: 01 April 1975
Suppression of Spreading Depression of Leão in Neocortex by an N-Methyl-D-Aspartate Receptor Antagonist (1992)

Spreading depression has been implicated in the pathophysiology of a number of diseases such as migraine, stroke and epilepsy. The characteristics of this phenomenon were explored in neocortex of anesthetized rats. Spreading depression was produced in 10 of 15 animals using mechanical, electrical and chemical stimulation. Mean amplitude of the DC shift was -9.3 mV, mean duration at any one electrode 65 sec and rate of spread 2-5 mm/min. Spreading depression was facilitated by focal interictal spike activity induced by penicillin and completely blocked by the N-methyl-D-aspartate (NMDA) receptor antagonist, DL-2-aminophosphonovaleric acid (APV), providing further evidence that excitatory amino acid neurotransmission is a critical element in the development or propagation of the phenomenon.
Studies of chemiluminescence accompanying fluorine atom etching of silicon (1980)

A broad continuum centered at 632 nm is present during the etching of silicon by F atoms, and in the flowing afterglow of an SiF4 discharge. A study of this feature and other spectra in pulsed and continuous discharges provides strong evidence that SiFx radicals (apparently SiF2) are formed as primary products when Si is gasified by atomic fluorine. The 632-nm emission is tentatively ascribed to the reaction processes (1) SiF2+F (or F2) → SiF*3 and (2) SiF*3 → SiF3+hνcontinuum.
Septamycin, a polyether antibiotic. Taxonomy, fermetation, isolation and characterization. (1975)

Septamycin is a metal complexing polyether antibiotic produced by a strain of Streptomyces hygroscopicus NRRL 5678. The metabolite, a monocarboxylic acid, was isolated as the sodium salt C48H81NaO16. The crystal structure and absolute configuration were established by X-ray analysis of the p-bromophenacyl derivative. Septamycin has a thirty-carbon backbone and contains seven heterocyclic rings. Supported by direct comparison septamycin proved to be identical with antibiotic A28695 A isolated from Streptomyces albus NRRL 3883. The metabolite is active against gram-positive bacteria and Eimeria tenella (chicken coccidiosis).
India's energy efficiency portfolio development (2005)

The past three decades have seen a significant evolution in the science, practice and impact of energy efficiency in India
Ligand binding to somatostatin receptors induces receptor-specific oligomer formation in live cells (2002)

Heptahelical receptors (HHRs) are generally thought to function as monomeric entities. Several HHRs such as somatostatin receptors (SSTRs), however, form homo- and heterooligomers when activated by ligand binding. By using dual fluorescent ligands simultaneously applied to live cells monotransfected with SSTR5 (R5) or SSTR1 (R1), or cotransfected with R5 and R1, we have analyzed the ligand receptor stoichiometry and aggregation states for the three receptor systems by fluorescence resonance energy transfer and fluorescence correlation spectroscopy. Both homo- and heterooligomeric receptors are occupied by two ligand molecules. We find that monomeric, homooligomeric, and heterooligomeric receptor species occur in the same cell cotransfected with two SSTRs, and that oligomerization of SSTRs is regulated by ligand binding by a selective process that is restricted to some (R5) but not other (R1) SSTR subtypes. We propose that induction by ligand of different oligomeric states of SSTRs represents a unique mechanism for generating signaling specificity not only within the SSTR family but more generally in the HHR family.
Use of Gradient Plates To Study Combined Effects of Temperature, pH, and NaCl Concentration on Growth of <i>Monascus ruber</i> van Tieghem, an Ascomycetes Fungus Isolated from Green Table Olives (2005)

The effect of temperature, pH, and sodium chloride concentration on the growth of the Ascomycetes fungus Monascus ruber van Tieghem, the main spoilage microorganism during storage of table olives, was studied by using the gradient plate technique. Gradients of NaCl (3 to 9%, wt/vol) at right angles to gradients of pH (2 to 6.8) were prepared for the plates, which were incubated at 25, 30, and 35 degrees C. Visible fungal growth, expressed in optical density units, was recorded by image analysis and graphically presented in the form of three-dimensional grids. Results obtained from the plates indicated that the fungus was salt and acid tolerant, being able to grow at NaCl concentrations of up to 9% (wt/vol) and pH values of as low as 2.2, depending on the incubation temperature. The inhibitory effect of NaCl increased as the pH decreased progressively at 25 and 30 degrees C but not at 35 degrees C. Growth was better at 30 and 25 degrees C as judged by the larger extent of the plates covered by mycelium compared with that at 35 degrees C, where no growth was observed at pHs below 3.7. Differentiation between vegetative (imperfect-stage) and reproductive (perfect-stage) growth was evident on all plates, providing useful information about the effect of environmental conditions on the form of fungal growth. When the growth/no-growth surface model was obtained by applying linear logistic regression, it was found that all factors (pH, NaCl, and temperature) and their interactions were significant. Plots of growth/no-growth interfaces for P values of 0.1, 0.5, and 0.9 described the results satisfactorily at 25 and 35 degrees C, whereas at 35 degrees C the model predicted lower minimum pH values for growth in the range of 7 to 10% NaCl than those observed on the plates. Overall, it is suggested that the fungus cannot be inhibited by any combination of pH and NaCl within the limits of the brine environment, so further processing is required to ensure product stability in the market.
UTRdb and UTRsite: specialized databases of sequences and functional elements of 5' and 3' untranslated regions of eukaryotic mRNAs (2000)

The 5' and 3' untranslated regions of eukaryotic mRNAs may play a crucial role in the regulation of gene expression controlling mRNA localization, stability and translational efficiency. For this reason we developed UTRdb, a specialized database of 5' and 3' untranslated sequences of eukaryotic mRNAs cleaned from redundancy. UTRdb entries are enriched with specialized information not present in the primary databases including the presence of nucleotide sequence patterns already demonstrated by experimental analysis to have some functional role. All these patterns have been collected in the UTRsite database so that it is possible to search any input sequence for the presence of annotated functional motifs. Furthermore, UTRdb entries have been annotated for the presence of repetitive elements. All internet resources implemented for retrieval and functional analysis of 5' and 3' untranslated regions of eukaryotic mRNAs are accessible at http://bigarea.area.ba.cnr.it:8000/EmbIT/UTRH ome/
Principles and applications of photochemistry (1989)

Basic principles of photochemistry absorption and emission of radiation, including the Beer-Lambert law, spectroscopic nomenclature photodissociation emission processes (1), including luminescence, kinetics and quantum efficiencies of emmission processes, fluorescence, phosphorescence, chemiluminescence energy transfer - emission processes (2) reactions of excited species, including intramolecular processes - isomerization and rearrangement techniques in photochemistry, including incandescent filament lamps, discharge lamps, lasers, synchrotron radiation photochemistry in action, including atmospheric photochemistry, photosynthesis, vision, photoimaging, photography, photochromism, photopolymerization, photodegration and photostabilization, solar energy storage, photoelectrochemical energy storage, optical brighteners, photomedicine. (Part contents)
Shot change detection on H.264/AVC compressed video (2005)

This paper deals with the problem of shot-change detection on H.264/AVC compressed video. As H.264/AVC employs several new coding tools, the statistic information of the macroblock is different from the former MPEG video. How to detect shot-changes efficiently on H.264/AVC compressed video is a challenging work. In this paper, we propose a novel scheme, a macroblock type analysis plus the intra-mode statistical constraint rule, to detect shot-changes for P-frame and B-frame coded video of H.264/AVC. For detecting shot-changes in I-frame coded video, we propose an intra mode histogram and use the weighted city block distance to measure the similarities among I-frames. Experimental results show that the proposed algorithms achieve satisfactory performance and very fast detection.
Senescence in a Bacterium with Asymmetric Division (2003)

Senescence (or aging) is a deterioration of function with age manifested as a drop in survival and reproduction ( [1][1] ). A fundamental question about senescence has not been settled: Which organisms should be senescent, and which should be potentially immortal? We present evidence for senescence
Superpenetration optical microscopy by iterative multiphoton adaptive compensation technique (2012)

Biological tissues are rarely transparent, presenting major challenges for deep tissue optical microscopy. The achievable imaging depth is fundamentally limited by wavefront distortions caused by aberration and random scattering. Here, we report an iterative wavefront compensation technique that takes advantage of the nonlinearity of multiphoton signals to determine and compensate for these distortions and to focus light inside deep tissues. Different from conventional adaptive optics methods, this technique can rapidly measure highly complicated wavefront distortions encountered in deep tissue imaging and provide compensations for not only aberration but random scattering. The technique is tested with a variety of highly heterogeneous biological samples including mouse brain tissue, skull, and lymph nodes. We show that high quality three-dimensional imaging can be realized at depths beyond the reach of conventional multiphoton microscopy and adaptive optics methods, albeit over restricted distances for a given correction. Moreover, the required laser excitation power can be greatly reduced in deep tissues, deviating from the power requirement of ballistic light excitation and thus significantly reducing photo damage to the biological tissue.
Geometry Coding for Dynamic Voxelized Point Clouds Using Octrees and Multiple Contexts (2019)

We present a method to compress geometry information of point clouds that explores redundancies across consecutive frames of a sequence. It uses octrees and works by progressively increasing resolution of the octree. At each branch of the tree, we generate an approximation of the child nodes by a number of methods which are used as contexts to drive an arithmetic coder. The best approximation, i.e. the context that yields the least amount of encoding bits, is selected and the chosen method is indicated as side information for replication at the decoder. The core of our method is a context-based arithmetic coder in which a reference octree is used as reference to encode the current octree, thus providing 255 contexts for each output octet. The 255×255 frequency histogram is viewed as a discrete 3D surface and is conveyed to the decoder using another octree. We present two methods to generate the predictions (contexts) which use adjacent frames in the sequence (inter-frame) and one method that works purely intra-frame. The encoder continuously switches the best mode among the three and conveys such information to the decoder. Since an intra-frame prediction is present, our coder can also work in purely intra-frame mode, as well. Extensive results are presented to show the method's potential against many compression alternatives for the geometry information in dynamic voxelized point clouds.
Ainsliadimer A, A New Sesquiterpene Lactone Dimer with an Unusual Carbon Skeleton from Ainsliaea macrocephala (2008)

A phytochemical investigation of Ainsliaea macrocephala led to the isolation of a new dimeric sesquiterpene lactone, ainsliadimer A (1). The structure of 1 was elucidated by spectroscopic analysis, and confirmed by single crystal X-ray diffraction. Ainsliadimer A represents an unusual carbon skeleton with a cyclopentane system connecting the two monomeric sesquiterpene lactone units. This unique molecule exerted potent inhibitory activity against the production of nitric oxide in RAW264.7 stimulated by LPS.
DISTRIBUTION AND ORIGIN OF TETRODOTOXIN (2001)

Among the marine toxins relevant for human intoxication, tetrodo-toxin (TTX) has been known as one of the most prejudicial. Puffer fish were originally thought to be the only animal from which TTX could be isolated. Subsequent works determined that TTX also existed in a range of marine organisms of different phylogenic classes and a very few amphibians. The production of TTX is generally accepted to be associated with bacteria. This paper presents the current evidences for the distribution of TTX and its analogs in several vertebrates and invertebrates, along with the probable origin of TTX.
Event by event 3-D PET reconstruction algorithm for a dedicated hardware architecture: preliminary results (2002)

Presents preliminary results obtained by reconstructing 3-D PET data simulating the behaviour of a dedicated hardware parallel architecture that matches an event by event algorithm working with backprojection filtering approach. The algorithm, the operating mode of the architecture and its complexity are described. Images presented here have not been 3-D filtered yet, instead a 2-D filter has been applied on single slices.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>