gebhart/patrepeval huggingface dataset:
Sub-seafloor resistivity sensing using a vertical electrode configuration (2014)

There is growing interest in marine direct current (DC) resistivity methods for sub-seafloor exploration of a broad range of geophysical and geological targets. To address this, we have developed a new marine DC method with a vertical electrode configuration (VEC). Compared to conventional marine DC methods that use a horizontal electrode configuration, the shape and position of our VEC cable can be controlled relatively easily. Therefore, the VEC is suitable for operations in regions of steep bathymetry and for expeditious sub-seafloor resistivity exploration. In this study, we introduce a water-resistant electrode array cable and an onshore multichannel DC measurement system for stable and rapid data acquisition. To evaluate the performance and efficiency of the new system, we conducted field experiments in the shallow water zone at Shimizu Port, Suruga Bay, Japan. In order to quantitatively analyze the VEC-DC data, we adopt a 1-D numerical modeling code that computes the electric potential and apparent resistivity generated by a point and dipole current source used in the VEC-DC measurement. These can be placed at any position with an arbitrary electrode configuration in a multilayered space, including seawater and sub-seafloor layers. We also develop an inversion code for the VEC-DC data based on a simulated annealing (SA) optimization and applied this to the field data. The observed data is of sufficiently good quality to be used for inversion, and the SA result demonstrates that the proposed VEC-DC system is able to estimate the sub-seafloor resistivity structure.
Distributions of Matrix Variates and Latent Roots Derived from Normal Samples (1964)

The paper is largely expository, but some new results are included to round out the paper and bring it up to date. The following distributions are quoted in Section 7. 1. Type $_0F_0$, exponential: (i) $\chi^2$, (ii) Wishart, (iii) latent roots of the covariance matrix. 2. Type $_1F_0$, binomial series: (i) variance ratio, $F$, (ii) latent roots with unequal population covariance matrices. 3. Type $_0F_1$, Bessel: (i) noncentral $\chi^2$, (ii) noncentral Wishart, (iii) noncentral means with known covariance. 4. Type $_1F_1$, confluent hypergeometric: (i) noncentral $F$, (ii) noncentral multivariate $F$, (iii) noncentral latent roots. 5. Type $_2F_1$, Gaussian hypergeometric: (i) multiple correlation coefficient, (ii) canonical correlation coefficients. The modifications required for the corresponding distributions derived from the complex normal distribution are outlined in Section 8, and the distributions are listed. The hypergeometric functions $_pF_q$ of matrix argument which occur in the multivariate distributions are defined in Section 4 by their expansions in zonal polynomials as defined in Section 5. Important properties of zonal polynomials and hypergeometric functions are quoted in Section 6. Formulae and methods for the calculation of zonal polynomials are given in Section 9 and the zonal polynomials up to degree 6 are given in the appendix. The distribution of quadratic forms is discussed in Section 10, orthogonal expansions of $_0F_0$ and $_1F_1$ in Laguerre polynomials in Section 11 and the asymptotic expansion of $_0F_0$ in Section 12. Section 13 has some formulae for moments.
Specific modification of the functional arginine residue in soybean trypsin inhibitor (Kunitz) by peptidylarginine deiminase. (1985)

In order to elucidate the specificity of rabbit muscle peptidylarginine deiminase, which catalyzes the conversion of arginyl to citrullyl residues (Takahara, H., Oikawa, Y., and Sugawara, K. (1983) J. Biochem. (Tokyo) 94, 1945-1953), we examined the action of this enzyme on a variety of trypsin inhibitors by assay of residual trypsin-inhibiting activity. The enzyme rapidly abolished the activity of soybean trypsin inhibitor (Kunitz) (STI) in a process that was pseudo-first order with the rate dependent on enzyme concentration (second order rate constant = 5.0 X 10(4) M-1 S-1), whereas no detectable changes in activity were noted for other inhibitors tested. Inactivation of STI was due to the conversion of 1 arginine to a citrulline residue and was accompanied with a 0.2 unit decrease of the isoelectric point. There was no alteration of the molecular size and overall conformation of STI. Furthermore, analysis of modified STI indicated that arginine 63, known as the reactive site of STI, is the residue modified by peptidylarginine deiminase. Thus, peptidylarginine deiminase selectively catalyzes the deimination of the functional arginine residue of STI.
Reduction of Salmonella Enteritidis in Shell Eggs Using Directional Microwave Technology (2008)

Microwaves have been shown to cause thermal as well as nonthermal destruction of pathogens such as Salmonella Enteritidis, which is commonly found in shell eggs. The objective of this study was to examine the use of new directional microwave technology to reduce Salmonella Enteritidis without causing any detrimental effects on quality in white and brown eggs. Treatments were control and microwaved white and brown eggs. Applying directional microwave technology resulted in a 2-log reduction of Salmonella Enteritidis in both the high (10(5) cfu/g) and low (10(2) cfu/g) inoculum. At d 0, there were no differences in water activities, albumen pH, and combined pH between treatments; however, there were significant changes in yolk pH. Collectively, these results indicate that applying directional microwave technology can reduce Salmonella Enteritidis in shell eggs without causing any detrimental effects to quality.
Electrolytic substitution reactions. III. Isomer distributions and isotope effects in nuclear and side-chain anodic acetoxylation of aromatic compounds (1967)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrolytic substitution reactions. III. Isomer distributions and isotope effects in nuclear and side-chain anodic acetoxylation of aromatic compoundsLennart. EbersonCite this: J. Am. Chem. Soc. 1967, 89, 18, 4669–4677Publication Date (Print):August 1, 1967Publication History Published online1 May 2002Published inissue 1 August 1967https://pubs.acs.org/doi/10.1021/ja00994a017https://doi.org/10.1021/ja00994a017research-articleACS PublicationsRequest reuse permissionsArticle Views266Altmetric-Citations75LEARN 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
Mitotic phosphorylation of histone H3 at threonine 3 (2004)

Nuclear envelope-peripheral heterochromatin fractions contain multiple histone kinase activities. In vitro assays and amino-terminal sequencing show that one of these activities co-isolates with heterochromatin protein 1 (HP1) and phosphorylates histone H3 at threonine 3. Antibodies recognizing this post-translational modification reveal that in vivo phosphorylation at threonine 3 commences at early prophase in the vicinity of the nuclear envelope, spreads to pericentromeric chromatin during prometaphase and is fully reversed by late anaphase. This spatio-temporal pattern is distinct from H3 phosphorylation at serine 10, which also occurs during cell division, suggesting segregation of differentially phosphorylated chromatin to different regions of mitotic chromosomes.
``MEMORY EXCHANGE'' IN AMORPHOUS SEMICONDUCTORS (1969)

Experimental observations of the interaction of the memory in amorphous semiconductors are described. Between two pairs of electrodes located sufficiently close by, memory exchange has been observed, namely, switch-on or ``lock-on'' (memory setting) of one pair of electrodes unlocks the memory of the other pair. The results are attributed to the thermal interaction between ``lock-on'' filament and switch-on filament.
Mechatronic Design and Characterization of the Index Finger Module of a Hand Exoskeleton for Post-Stroke Rehabilitation (2011)

This paper presents HANDEXOS, a novel wearable multiphalanges device for post-stroke rehabilitation. It was designed in order to allow for a functional and safe interaction with the user's hand by means of an anthropomorphic kinematics and the minimization of the human/exoskeleton rotational axes misalignment. This paper describes the mechatronic design of the exoskeleton's index finger module, simulation, modeling, and development of the actuation unit and sensory system. Experimental results on the validation of the dynamic model and experimental characterization of the index finger module with healthy subjects are reported, showing promising results that encourage further clinical trials.
Bias of error rates in linear discriminant analysis caused by feature selection and sample size (2002)

The holdout and leave-one-out error estimates for a two-class problem with multivariate normal distributions and common covariance are derived as a function of the number of feature candidates, classifier dimensionality, sample size and Mahalanobis distance, using Monte Carlo simulations. It is demonstrated that the leave-one-out error rate is a highly biased estimate of the true error if feature selection is performed on the same data before error estimation. This problem is especially pronounced when analyzing many features on a small data set. The holdout error is an almost unbiased estimate of the true error independent of the number of feature candidates.
Abdominal adipose tissue distribution, obesity, and risk of cardiovascular disease and death: 13 year follow up of participants in the study of men born in 1913. (1984)

In a prospective study of risk factors for ischaemic heart disease 792 54 year old men selected by year of birth (1913) and residence in Gothenburg agreed to attend for questioning and a battery of anthropometric and other measurements in 1967. Thirteen years later these baseline findings were reviewed in relation to the numbers of men who had subsequently suffered a stroke, ischaemic heart disease, or death from all causes. Neither quintiles nor deciles of initial indices of obesity (body mass index, sum of three skinfold thickness measurements, waist or hip circumference) showed a significant correlation with any of the three end points studied. Statistically significant associations were, however, found between the waist to hip circumference ratio and the occurrence of stroke (p = 0.002) and ischaemic heart disease (p = 0.04). When the confounding effect of body mass index or the sum of three skinfold thicknesses was accounted for the waist to hip circumference ratio was significantly associated with all three end points. This ratio, however, was not an independent long term predictor of these end points when smoking, systolic blood pressure, and serum cholesterol concentration were taken into account. These results indicate that in middle aged men the distribution of fat deposits may be a better predictor of cardiovascular disease and death than the degree of adiposity.
Surface Modification of Silicone EVD Tube by Low Temperature Plasma (1999)

Surface modification of silicone rubber by low temperature plasma process was investigated to improve quality of silicone EVD tube by reducing tackiness and hydrophobicity. Treatment with nonpolymer-forming plasmas and thin film deposition with polymer-forming plasmas were tried. Tackiness could significantly be reduced, especially by thin film deposition. As a result, the tube became slippery and less vulnerable to contamination in laboratory environment. Inner as well as outer surface of the tube could be changed to be hydrophilic if the plasma contained oxygen. As a result, initial hydrodynamic resistance was reduced. The surface modification did not give any bad influence on mechanical properties of the silicone tube in most cases. Rather, some properties such as Young's modulus, ultimate tensile strength and elongation at break were improved.
Keys to Understanding Spray-guided Combustion of a Narrow-spacing Gasoline Direct Injection SI Engine with a Centrally Mounted Multi-hole Injector (2009)

<div class="htmlview paragraph">Spray-guided gasoline direct injection SI engines attract as one of new generation lean-burn engines to promise CO2 reduction. These typically adopt “narrow-spacing” concept in which an injector is centrally mounted close to a spark plug. Therefore, geometric targets of the fuel spray and a position of the spark plug have to be exactly limited to maintain a proper mixture in the spark gap. In addition, the stable combustion window is narrow because the spark ignition is limited in a short time during and immediately after the injection. These spatial and temporal restrictions involve some intractable problems concerning the combustion robustness due to the complicate phenomena around the spark plug. The local mixture preparation near the spark plug significantly depends on the spray-induced charge motion. The intense flow induced by the motion blows out and stretches the spark, thereby affecting the spark discharge performance. Moreover, the fuel interaction with the spark plug affects not only the spark discharge performance but also the mixture preparation. These phenomena significantly make impacts on the combustion and cause misfires in the worst case because there is a possibility of changing the stable combustion window. This paper describes a study of the spray-guided combustion using a narrow-spacing gasoline direct injection SI engine with a multi-hole injector. A goal of this study is to understand the factors affecting the local mixture preparation at the spark gap and the spark discharge performance. Additionally, the effects of the phenomena on the combustion robustness were investigated.</div>
Apoptosis in heart failure: Release of cytochrome <i>c</i> from mitochondria and activation of caspase-3 in human cardiomyopathy (1999)

Apoptosis has been shown to contribute to loss of cardiomyocytes in cardiomyopathy, progressive decline in left ventricular function, and congestive heart failure. Because the molecular mechanisms involved in apoptosis of cardiocytes are not completely understood, we studied the biochemical and ultrastructural characteristics of upstream regulators of apoptosis in hearts explanted from patients undergoing transplantation. Sixteen explanted hearts from patients undergoing heart transplantation were studied by electron microscopy or immunoblotting to detect release of mitochondrial cytochrome c and activation of caspase-3. The hearts explanted from five victims of motor vehicle accidents or myocardial ventricular tissues from three donor hearts were used as controls. Evidence of apoptosis was observed only in endstage cardiomyopathy. There was significant accumulation of cytochrome c in the cytosol, over myofibrils, and near intercalated discs of cardiomyocytes in failing hearts. The release of mitochondrial cytochrome c was associated with activation of caspase-3 and cleavage of its substrate protein kinase C δ but not poly(ADP-ribose) polymerase. By contrast, there was no apparent accumulation of cytosolic cytochrome c or caspase-3 activation in the hearts used as controls. The present study provides in vivo evidence of cytochrome c -dependent activation of cysteine proteases in human cardiomyopathy. Activation of proteases supports the phenomenon of apoptosis in myopathic process. Because loss of myocytes contributes to myocardial dysfunction and is a predictor of adverse outcomes in the patients with congestive heart failure, the present demonstration of an activated apoptotic cascade in cardiomyopathy could provide the basis for novel interventional strategies.
A versatile UDP/IP based PC &#x2194; FPGA communication platform (2012)

We present a substantially improved version of our popular UDP/IP core for simple and fast PC ↔ FPGA communication over Gigabit Ethernet. We provide a novel feature to automatically configure (previously hard-coded) internal settings on the FPGA. Thereby, we substantially reduce the installation overhead when a FPGA shall communicate with several different PCs. The UDP/IP core is designed to occupy a minimum amount of hardware resources on the FPGA. On the PC side, this new automatic configuration protocol can be used and invoked via a C software interface which provides convenient functions for setting up the connection to the FPGA device and sending/retrieving arrays of common C data types to/from the UDP/IP core on the FPGA. The initial UDP/IP core version is available under the LGPL license at http://opencores.org/project, udp_ip__core while the improved version of the core, including the C software interface (also under LGPL), is available at http://opencores.org/project, pc_fpga_com.
Cloud-based realtime robotic Visual SLAM (2015)

Prior work has shown that Visual SLAM (VSLAM) algorithms can successfully be used for realtime processing on local robots. As the data processing requirements increase, due to image size or robot velocity constraints, local processing may no longer be practical. Offloading the VSLAM processing to systems running in a cloud deployment of Robot Operating System (ROS) is proposed as a method for managing increasing processing constraints. The traditional bottleneck with VSLAM performing feature identification and matching across a large database. In this paper, we present a system and algorithms to reduce computational time and storage requirements for feature identification and matching components of VSLAM by offloading the processing to a cloud comprised of a cluster of compute nodes. We compare this new approach to our prior approach where only the local resources of the robot were used, and examine the increase in throughput made possible with this new processing architecture.
Mobile Crowd Sensing and Computing (2015)

With the surging of smartphone sensing, wireless networking, and mobile social networking techniques, Mobile Crowd Sensing and Computing (MCSC) has become a promising paradigm for cross-space and large-scale sensing. MCSC extends the vision of participatory sensing by leveraging both participatory sensory data from mobile devices (offline) and user-contributed data from mobile social networking services (online). Further, it explores the complementary roles and presents the fusion/collaboration of machine and human intelligence in the crowd sensing and computing processes. This article characterizes the unique features and novel application areas of MCSC and proposes a reference framework for building human-in-the-loop MCSC systems. We further clarify the complementary nature of human and machine intelligence and envision the potential of deep-fused human--machine systems. We conclude by discussing the limitations, open issues, and research opportunities of MCSC.
Complement activation in the brain after experimental intracerebral hemorrhage (2000)

It was found that ICH causes complement activation in the brain. Activation of complement and the formation of membrane attack complex contributes to brain edema formation after ICH. Blocking the complement cascade could be an important step in the therapy for ICH.
Large angle flexure pivot development for future science payloads for space applications (2019)

An innovative design of a Large Angle Flexure Pivot (LAFP) is described. It combines the advantages of flexure mechanisms while surpassing one of their few flaws, small displacement strokes. The LAFP design exceeds these angular limitations to reach a deflection of 180° (±90°). The centre shifts laterally by less than ±35 μm throughout the full rotation range. The LAFP is meant to be mounted in pairs, coaxially and with the payload between them. The intended application of the LAFP is to angularly guide an optical component in a space environment for future science missions operating in a cryogenic environment. A dedicated performance test bench was developed and manufactured to test the pivot characteristics notably the lateral shift using Eddy current sensors. The test bench incorporates a representative dummy payload for mass and inertia. Extensive FEM analysis has been performed to validate the design at component level and further analysis with the pivots mounted with a representative payload on a test bench for random vibration, shock and thermal cycling environment. The second test bench for the vibration and shock tests has been manufactured incorporating a simplified launch locking device. The performance tests have confirmed a lateral shift of less than ±35 μm over an angular range of ±90°. The pivots have been successfully tested and survived vibration loads for high level sine at 24 g and random vibration at 12 grms in all three directions.
A PLL-based high-stability single-inductor 6-channel output DC-DC buck converter (2010)

A single-inductor 6-channel regulated output DC-DC buck converter employing PLL-based multiple-output bang-bang (PMB) control is presented. A mixture of comparator control and bang-bang control is used for regulating the multiple output channels inside the PLL loop. The fabricated chip occupies 2.5 × 3 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> in a 0.35 ¿m CMOS process with a switching frequency of 2 MHz.
Wollastonite Ceramic/CuO Nano-Composite for Cadmium Ions Removal From waste water (2017)

Nano-particles, within 29-45 nano-meters, based on wollastonite were prepared with/without CuO through wet method. The adsorption process was occurred on nano-particles powder ceramic at different conditions (pH, contact time and adsorbent dose) for removing of cadmium ions from wastewater. The SEM of nano-particles after treatment of wastewater revealed that surface texture of the blank adsorbents changed totally due to the adsorption of cadmium ions on the particles. At the optimum operating conditions, the removal efficiency of cadmium ions reached 98.88 %. The obtained results showed that the produced ceramic nano-particles could be used efficiently for removal of cadmium ions with reasonable simple and low cost technique.
Recovery from inhibition of photosynthesis by metamitron in various plant species (1979)

Summary: Inhibition of photosynthesis by metamitron in the rooting medium and its subsequent recovery after transfer of the roots to herbicide‐free nutrient solution was measured in eight plant species. Fast and complete recovery within a few hours after treatment showed that metamitron, once absorbed, was rapidly and completely inactivated in the leaves of sugar beet ( Beta vulgaris L.). Inactivation in perennial ryegrass ( Lolium perenne L.) was slower and incomplete. It was low in Echinochloa crusgalli (L.) P.B., Amaranthus retroflexus L., Alopecurus myosuroides Huds. and bean ( Phaseolus vulgaris L.), and undetectable in maize ( Zea mays L.) and Portulaca oleracea L. From the transpiration rate and the concentration of metamitron in the nutrient solution that just did not cause inhibition of photosynthesis in sugar beet, uptake and inactivation rates per unit leaf area were calculated to be at least 18·5 ng/cm 2 /h. The same external concentration markedly depressed photosynthesis in the other more susceptible species. After leaf sprays sugar beet plants gradually resumed the normal rate of photosynthesis, but bean plants did not recover.