gebhart/patrepeval huggingface dataset:
Geofluid Dynamic Concept of Prospecting for Hydrocarbon Accumulations in the Earth Crust (2019)

In our paper we produce new evidence of the tectonosphere and hydrosphere structure of oil and gas sedimentary basins and confirm significant influence of geofluid-dynamic processes on formation of hydrocarbon accumulations in the crust at the great depths. In our opinion the theory based on obsolete views on the tectonosphere structure lessen the importance the sedimentary migration theory of hydrocarbon generation. We prognosticate a particular stagnant type of post-elysionic water-drive systems in the crust at the great depths in conditions of increased hydrodynamic isolation. Absence of regionally sustained vertical and lateral drainage layers characterizes geological environment where stagnant type developed, and, corollary, fluids outflow into external environment is practically unfeasible. The subsalt filling complexes of the epicontinental deepwater basins are included into the post-elysionic water-drive systems. These complexes occur at the great depths and possibility of striking unique and large oil and gas fields there is inherent. We propose a system of fluid-dynamic conditions for preserving hydrocarbon accumulations in the lower crust as a result of developing sedimentary-migration theory for oil and gas formation. We consider the refinement of methods for prospecting and exploration large deposits at the great depths will pave the way for expanded reproduction of hydrocarbon reserves in the “old” oil and gas producing regions in our country.
Mannich Reaction with Hydroxycoumarins1 (1961)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMannich Reaction with Hydroxycoumarins1R. B. DesaiCite this: J. Org. Chem. 1961, 26, 12, 5251–5253Publication Date (Print):December 1, 1961Publication History Published online1 May 2002Published inissue 1 December 1961https://pubs.acs.org/doi/10.1021/jo01070a543https://doi.org/10.1021/jo01070a543research-articleACS PublicationsRequest reuse permissionsArticle Views375Altmetric-Citations14LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Superpixel-Guided Layer-Wise Embedding CNN for Remote Sensing Image Classification (2019)

Irregular spatial dependency is one of the major characteristics of remote sensing images, which brings about challenges for classification tasks. Deep supervised models such as convolutional neural networks (CNNs) have shown great capacity for remote sensing image classification. However, they generally require a huge labeled training set for the fine tuning of a deep neural network. To handle the irregular spatial dependency of remote sensing images and mitigate the conflict between limited labeled samples and training demand, we design a superpixel-guided layer-wise embedding CNN (SLE-CNN) for remote sensing image classification, which can efficiently exploit the information from both labeled and unlabeled samples. With the superpixel-guided sampling strategy for unlabeled samples, we can achieve an automatic determination of the neighborhood covering for a spatial dependency system and thus adapting to real scenes of remote sensing images. In the designed network, two types of loss costs are combined for the training of CNN, i.e., supervised cross entropy and unsupervised reconstruction cost on both labeled and unlabeled samples, respectively. Our experimental results are conducted with three types of remote sensing data, including hyperspectral, multispectral, and synthetic aperture radar (SAR) images. The designed SLE-CNN achieves excellent classification performance in all cases with a limited labeled training set, suggesting its good potential for remote sensing image classification.
Biosynthetic Capacities of Actinomycetes. 4. Echinoserine, a New Member of the Quinoxaline Group, Produced by Streptomyces tendae. (1995)

A new member of the quinoxaline group antibiotics has been detected by HPLC-diode-array screening. The main compound produced by Streptomyces tendae strain Tü 4031 showed a high degree of similarity in the UV-visible spectral region with echinomycin and their structural similarity was confirmed by structure elucidation using electron tandem mass spectrometry and 2D nuclear magnetic resonance. The new compound, named echinoserine, is a non-cyclic form of echinomycin, but it is not a biosynthetic precursor. Echinoserine is less antibiotically active than echinomycin.
Application of convolutional neural networks to speaker recognition in noisy conditions (2014)

This paper applies a convolutional neural network (CNN) trained for automatic speech recognition (ASR) to the task of speaker identification (SID). In the CNN/i-vector front end, the sufficient statistics are collected based on the outputs of the CNN as opposed to the traditional universal background model (UBM). Evaluated on heavily degraded speech data, the CNN/i-vector front end provides performance comparable to the UBM/i-vector baseline. The combination of these approaches, however, is shown to provide improvements of 26% in miss rate to considerably outperform the fusion of two different features in the traditional UBM/i-vectors approach. An analysis of the language- and channel-dependency of the CNN/i-vector approach is also provided to highlight future research directions. Index Terms: Deep neural networks, Convolutional neural networks, Speaker recognition, i-vectors, noisy speech
System identification for data acquisition characterization (2002)

This paper describes a robust and efficient identification algorithm to identify the nonlinear distortion and the time base distortion of a data acquisition channel using sine wave measurements. The proposed method is compared with existing methods using simulations. Its applicability is demonstrated on measurements of high frequency sampling scopes.
RFLP and Microsatellite Mapping of a Gene for Soybean Mosaic Virus Resistance (1994)

Restriction fragment length polymorphisms (RFLPs) and microsatellites or simple sequence repeats (SSRs) were used as genetic markers to identify the chromosomal location of Rsv, a gene conferring resistance to soybean mosaic virus (SMV). An F 2 population was constructed from a cross between soybean line PI 96983 as the resistant parent and cultivar Lee 68 as the susceptible parent. Twenty-five RFLP and three SSR loci, polymorphic between the parental lines, were analyzed in 107 F 2 individuals. Genotypes of Rsv were determined by inoculating F 2.3 progeny RACT with the G1 strain of SMV. Data also were collected for an additional soybean gene (w1/W1), which controls anthocyanin pigmentation in hypocotyls and flowers [...]
Isolation of a Yeast Protein Kinase Gene by Screening with a Mammalian Protein Kinase cDNA (1988)

The gene for a new Saccharomyces cerevisiae protein kinase was identified and isolated by hybridization to a cloned cDNA for the catalytic subunit of bovine cAMP-dependent protein kinase. This newly isolated yeast gene encodes a 680-amino-acid protein that shows strong sequence similarity to several serine/threonine protein kinases. The protein kinase catalytic domain is located at the carboxy-terminal portion of the protein. A large, amino-terminal domain shows no sequence similarity to any known protein kinase. It seems likely that the amino-terminal domain mediates the effects of an unknown regulator of the newly identified yeast protein kinase.
Multiscale projection-based Embedded Discrete Fracture Modeling approach (F-AMS-pEDFM) (2016)

This work presents the formulation of a novel Projection-based Embedded Discrete Fracture Model (pEDFM), and its integration into an algebraic multiscale procedure. Similar to EDFM, pEDFM constructs independent grids for the matrix and fracture domains. However, as a significant step forward, it is able to accurately model the effect of fractures with general conductivity contrasts relative to the matrix, including impermeable flow barriers. This is achieved by automatically adjusting the matrix transmissibility field, in accordance to the conductivity of neighboring fracture networks. Then, in order to extend the pEDFM to real-field applications, F-AMS-pEDFM is introduced, which is an extension of the recently developed algebraic multiscale solver, F-AMS [Ţene et al., 2016], to include pEDFM. The performance (efficiency and scalability) of F-AMS-pEDFM is investigated extensively for challenging two- and three-dimensional scenarios with complex fracture geometries and a wide range of conductivity contrasts. Moreover, F-AMS-pEDFM is benchmarked against the commercial SAMG solver, where CPU time is monitored during both the setup and solution phases. The results support the conclusions that (1) pEDFM significantly outperforms the original EDFM model, and (2) the F-AMS-pEDFM approach proposed in this work is an accurate and efficient method for field-scale simulation of flow in fractured reservoirs.
Sudden Permeability Changes in the Shields of Shielded GMR Heads. (2002)

The magnetostatic interaction between the GMR elements and the shields of shielded GMR heads was investigated by micromagnetic modeling of the GMR elements and the shields. The magnetization patterns in the shields were determined in order to minimize the total energy of the shields. The biasing field of the GMR element was defined by the sum of the permanent magnet field and its images in the shields. It was confirmed that the magnetization curves of shields with permanent magnets show hysteric behavior, and double- or single-flux closure appeared in the domain structure. The transition from double-flux closures to a single-flux closure causes sudden permeability change in the shields. A permeability change will produce changes in the imaging field of the permanent magnets in the shields. As a result, a Barkhausen jump corresponding to a permeability change appears in the easy-axis transfer curves (i.e., the GMR response vs. the easy-axis field).
ಕನನಡ ಕತಗಳ ಡಜಟಸ ಆಗಲವ! (2005)

The paper discusses the ambitious project of Department of Public Libraries of the Government of Karnataka to digitize one lakh Kannada books in one year as part of Million Books of Carnige Mellon University. It examines preparations of the department in terms of availability of comprehensive collection and catalogue of one lakh Kannada titles. It is suggested that if up-to-date metadata is available the same may be made available to everyone through its own OPAC or/ and through Worldcat of OCLC. It also cautions that if copyright issues are not solved and royalty is not paid, most popular and high quality books are likely to remain outside the project resulting in only copyright-free books and low quality books getting digitized. In a system like public library it is very much required to digitize rare books and other archival materials, but no one can expect readers to use e-versions of contemporary books when print counter parts are not used. The project should also consider depositing good representative collection of Knanada books in open sources like Wikepedia or open archives once digitized.
On second-order asymptotics of AWGN channels with feedback under the expected power constraint (2016)

In this paper, we analyze the asymptotic expansion for additive white Gaussian noise (AWGN) channels with feedback under an expected power constraint and the average error probability formalism. We show that the ε-capacity depends on ε in general and so the strong converse fails to hold. Furthermore, we provide bounds on the second-order term in the asymptotic expansion. We show that the second-order term is bounded between −ln ln n and a term that is proportional to +√n ln n. The lower bound on the second-order term shows that feedback does provide an improvement in the maximal achievable rate over the case where no feedback is available.
Rural Culture chapter in Eco Gozo strategy (2015)

Gozo is rooted in its rural culture. However, the preservation of the Gozitan’s rural culture is challenging in the face of development pressures and it is a national priority to preserve the cultural tapestry that makes us unique as a rural community.
Flame aerosol synthesis of smart nanostructured materials (2007)

Recent advances in aerosol and combustion science and engineering now allow scalable flame synthesis of mixed oxides, metal salts and even pure metals in the form of nanoparticles and films with closely controlled characteristics. In this way, high purity materials with novel metastable phases are made that are not accessible by conventional wet-phase and solid state processes. Here, flame processes are classified into vapour-fed and liquid-fed ones depending on the employed state of the metal precursor. Liquid-fed flame processes are distinguished for their flexibility in producing materials of various compositions and morphologies that result in unique product functionalities. Parameters controlling the characteristics of flame-made particles and films are summarized and selected classes of materials are reviewed focusing on catalysts, sensors, biomaterials (orthopaedic, dental or nutritional), electroceramics (fuel cells, batteries) and phosphors exhibiting superior performance over conventionally made ones. Just a few years ago it seemed impossible to make these materials in the gas phase. Finally, health effects of such particles are discussed while future challenges and opportunities for flame-made materials are highlighted.
Silicon Photonic Neural Networks for Chaos-based Secure Communication (2020)

We propose a continuous time recurrent neural network of four neurons modeled on a silicon photonic platform to generate chaos. Two such chaotic systems can be synchronized with low-latency using master-slave synchronization for high-speed secure data communication.
Asymmetric dual catalysis via fragmentation of a single rhodium precursor complex (2016)

A strategy for dual transition metal catalysis and organocatalysis is reported via the in situ disintegration of a single rhodium complex. The hereby generated chiral Lewis acid and l-β-phenylalanine synergistically catalyze the Michael addition of α,α-disubstituted aldehydes to α,β-unsaturated 2-acyl imidazoles under the formation of vicinal quaternary/tertiary stereocenters. Conveniently, the chiral-at-metal rhodium catalyst can be synthesized in just two steps starting from rhodium trichloride without the need for any chromatography.
Grayscale-based Block Scrambling Image Encryption for Social Networking\n Services (2018)

This paper proposes a new block scrambling encryption scheme that enhances\nthe security of encryption-then-compression (EtC) systems for JPEG images,\nwhich are used, for example, to securely transmit images through an untrusted\nchannel provider. The proposed method allows the use of a smaller block size\nand a larger number of blocks than the conventional ones. Moreover, images\nencrypted using proposed scheme include less color information due to the use\nof grayscale even when the original image has three color channels. These\nfeatures enhance security against various attacks such as jigsaw puzzle solver\nand brute-force attacks. The results of an experiment in which encrypted images\nwere uploaded to and then downloaded from Twitter and Facebook demonstrated the\neffectiveness of the proposed scheme for EtC systems.\n
Coordination-Induced Intramolecular Double Cyclization: Synthesis of Boron-Bridged Dipyridylvinylenes and Dithiazolylvinylenes (2008)

Di(heteroaryl)acetylenes having a pyridyl or thiazolyl as the heteroaryl group underwent a reaction with bromodibenzoborole to produce coordination complexes, which were further treated with water to promote the intramolecular cascade double cyclization to produce the dibenzoborolyl-bridged ladder di(heteroaryl)vinylenes. For the thiazolyl derivative, further derivatization at the terminal positions produced a bis(dimesitylboryl)-substituted derivative. The ladder molecules prepared showed an intense emission in the fluorescence spectra as well as reversible reduction waves at low reduction potentials in the cyclic voltammetry.
Effects of Regulatory Factors on Engineered Cardiac Tissue In Vitro (2007)

We tested the hypothesis that supplemental regulatory factors can improve the contractile properties and viability of cardiac tissue constructs cultured in vitro. Neonatal rat heart cells were cultured on porous collagen sponges for up to 8 days in basal medium or medium supplemented with insulin-like growth factor-I (IGF), insulin-transferrin-selenium (ITS), platelet-derived growth factor-BB (PDGF), or angiopoietin-1 (ANG). IGF and ITS enhanced contractile properties of the 8-day constructs significantly more than with unsupplemented controls according to contractile amplitude and excitation threshold, and IGF also significantly increased the amount of cardiac troponin-I and enhanced cell viability according to different assays (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), lactate dehydrogenase (LDH), and terminal deoxynucleotidyl transferase biotin-2'-deoxyuridine 5'-triphosphate nick end labeling (TUNEL)). PDGF significantly increased the contractile amplitude of 4-day constructs and enhanced cell viability according to MTT, LDH, and TUNEL; ANG enhanced cell viability according to the LDH assay. Our results demonstrate that supplemental regulatory molecules can differentially enhance properties of cardiac tissue constructs and imply that these constructs can provide a platform for systematic in vitro studies of the effects of complex stimuli that occur in vivo to improve our basic understanding of cardiogenesis and identify underlying mechanisms that can potentially be exploited to enhance myocardial regeneration.
Cross-Linking and Sequence Specific Alkylation of DNA by Aziridinyl Quinones. 2. Structure Requirements for Sequence Selectivity (1997)

The cytotoxicities and DNA sequence selectivity for guanine-N7 alkylation of 22 mono- and disubstituted 2,5-diaziridinyl-1,4-benzoquinones have been investigated. Several quinones produced patterns of alkylation following reduction with a selectivity for 5'-TGC-3' sequences. This sequence selectivity appeared to be dependent only on the presence of a hydrogen in position-6 of the quinone. A computer model, based on published crystallographic data, was used to explain this selectivity. The sequence selective quinones were generally more cytotoxic that the quinones which reacted randomly.
Foreign Body Reaction Associated with PET and PET/Chitosan Electrospun Nanofibrous Abdominal Meshes (2014)

Electrospun materials have been widely explored for biomedical applications because of their advantageous characteristics, i.e., tridimensional nanofibrous structure with high surface-to-volume ratio, high porosity, and pore interconnectivity. Furthermore, considering the similarities between the nanofiber networks and the extracellular matrix (ECM), as well as the accepted role of changes in ECM for hernia repair, electrospun polymer fiber assemblies have emerged as potential materials for incisional hernia repair. In this work, we describe the application of electrospun non-absorbable mats based on poly(ethylene terephthalate) (PET) in the repair of abdominal defects, comparing the performance of these meshes with that of a commercial polypropylene mesh and a multifilament PET mesh. PET and PET/chitosan electrospun meshes revealed good performance during incisional hernia surgery, post-operative period, and no evidence of intestinal adhesion was found. The electrospun meshes were flexible with high suture retention, showing tensile strengths of 3 MPa and breaking strains of 8-33%. Nevertheless, a significant foreign body reaction (FBR) was observed in animals treated with the nanofibrous materials. Animals implanted with PET and PET/chitosan electrospun meshes (fiber diameter of 0.71 ± 0.28 µm and 3.01 ± 0.72 µm, respectively) showed, respectively, foreign body granuloma formation, averaging 4.2-fold and 7.4-fold greater than the control commercial mesh group (Marlex). Many foreign body giant cells (FBGC) involving nanofiber pieces were also found in the PET and PET/chitosan groups (11.9 and 19.3 times more FBGC than control, respectively). In contrast, no important FBR was observed for PET microfibers (fiber diameter = 18.9 ± 0.21 µm). Therefore, we suggest that the reduced dimension and the high surface-to-volume ratio of the electrospun fibers caused the FBR reaction, pointing out the need for further studies to elucidate the mechanisms underlying interactions between cells/tissues and nanofibrous materials in order to gain a better understanding of the implantation risks associated with nanostructured biomaterials.
Spectra of tetrahedral complexes of transition metals. Jahn–Teller effect in the tetrabromoferrate(III) ion (1972)

The single-crystal spectra of RFeBr4(R = 4-ethylpyridinium, Me4N+, Me3NH+, Me2NH2+, and MeNH3+) have been recorded at room temperature and ca.80 K. The fine structure resolvable in one transition has been analysed as vibrational progressions of non-totally symmetric t2 modes. The consequences of this observation are discussed in terms of a Jahn–Teller distortion of the excited electronic state. It is shown that a consistent assignment of the excited states is possible with the aid of a crystal field energy calculation. The spin–orbit splittings of the lowest-lying excited quartet and doublet states are calculated from the Tanabe–Sugano–Schroeder–Tree matrices. It is suggested that the Jahn–Teller effect is responsible for a quenching of the expected spin–orbit splittings. Finally, the spectral differences between the isoelectronic MnBr42– and FeBr4– complexes are discussed.
Preparation and Characterization of Nano-TiO<sub>2</sub> Powder (2002)

Abstract This paper reports the results of an investigation aiming at finding what affects the grain size of nano-TiO2 powder during synthesis. Nano-sized TiO2 powders have been prepared by a sol–gel method. The crystalline structures and morphologies of the powder have been characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The result shows that the different preparation conditions such as concentration, pH value, calcination time and calcination temperature have a lot of influences upon the properties of nano-TiO2 powders. The smallest grain size of TiO2 powder we have obtained is 6 nm by controlling the process conditions.
FOLLOW-UP AND RETREATMENT OF BRAIN METASTASES (2014)

Expert Panel on Radiation Oncology–Brain Metastases: Jared R. Robbins, MD; Andrew Elson, MD; John M. Buatti, MD; Eric L. Chang, MD; Rebecca S. Cornelius, MD; Neil C. Estabrook, MD; Isabelle M. Germano, MD; A. Paiman Ghafoori, MD; Mark A. Henderson, MD; Simon Shek-Man Lo, MB, ChB; Gregory J. A. Murad, MD; H. Ian Robins, MD, PhD; M. Salim Siddiqui, MD, PhD; Andrew D. Vassil, MD; Gregory M. M. Videtic, MD; Michael J. Yunes, MD; Elizabeth M. Gore, MD.
Bell-CHSH Inequality and Genetic Algorithms (2005)

We apply genetic algorithms to find the value where the CHSH inequality is violated.
Poly(ethylene glycol) (PEG)-modified epoxy phase-change polymer with dual properties of thermal storage and vibration damping (2018)

PEG was modified with epoxy to form a film which demonstrated dual function of thermal energy storage and vibration damping.