gebhart/patrepeval huggingface dataset:
Physiological properties of individual cerebral axons studied in vivo for as long as one year (1985)

The long-term stability of conduction velocity and recovery processes were studied in a fast-conducting (corticotectal) and in a more slowly conducting (visual callosal) axonal system. Chronic microelectrode recording methods were used in conjunction with antidromic activation via electrical stimulation at one or more axonal site. These methods enabled 54 axons to be studied for greater than 20 days and seven of these cells to be studied for 101-448 days. The conduction velocities of corticotectal axons were characteristic of myelinated axons and were very stable over time. The conduction velocities of most callosal axons were characteristic of nonmyelinated axons, and 68% of callosal axons had conduction velocities that were stable over long periods of time. Of the remaining callosal axons, approximately one third showed an increase in conduction velocity (8-14%), whereas two thirds showed a progressive and systematic decrease in conduction velocity (6-81%). These changes in conduction velocity were distributed along the callosal axon, rather than limited to a single segment of axon. Although the refractory period of callosal and corticotectal axons showed considerable variability over time, the minimal interval between two conducted impulses was stable. The stability of this property was remarkable because the minimal interspike intervals of different axons with similar conduction velocities often differed greatly. Callosal axons show a supernormal period of increased conduction velocity following the relative refractory period and a subsequent subnormal period of decreased conduction velocity following a burst of prior impulses. In different callosal axons the magnitude of the velocity changes (percent change) differs greatly, even among axons of the same conduction velocity. For a given axon, however, these properties are very stable over time. These results on axonal properties may be useful in studies requiring the examination of extracellular responses of individual neurons over long periods of time. Antidromic latency provides a useful means of identifying a cell, particularly when conduction times are long. The stability of the minimal interspike interval and the supernormal period within individual axons make them suitable as ancillary criteria in identifying individual neurons. These three measures are independent of spike amplitude and waveform, and together they provide a "signature" by which individual cortical neurons can be identified over periods that represent a significant portion of the lifespan of adult mammals.
A Finite Element Iterative Approach for Analysis of Laminated Composite Structural Elements (1987)

A continuous mixed field iterative scheme based on a three-dimension finite element displacement method is presented. This method is very powerful in determination of stress distribution for problems with either material and/or geometric discontinuities. For laminated composite materials this method is reliable in stress evaluation at locations away from the optimal Gauss points such as free edges near a notch or a hole. It is also useful in determination of inter-laminar stresses at an interface of laminated composites. Numerical results of two problems are presented. The first problems is to evaluate inter-laminar stresses of laminated composite beams and plates under in-plane loads. The second problem is to obtain stress distribution (also stress concentration factor) of finite unidirectional composite plates with a circular hole at the centre of the plate. The proposed method needs lower computer storage and less CPU time than most of the other schemes. Easy of implementation is another advantage of this method. Since there are no changes to the finite element solutions, the iterative part can be implemented as a post-processing subroutine in any existing program for anisotropic materials without altering the plain body of the code.
Total Hemolytic Complement (CH50) and Its Fractions (C3 and C4) in the Sera of Diabetic Patients With Periodontitis (1990)

The total hemolytic complement activity (CH50) and its fractions C3 and C4 were determined in 50 patients with Type II or non-insulin dependent diabetes mellitus (NIDDM) and 50 nondiabetic patients with periodontitis. The values were compared with those of 50 age and sex matched controls. An elevation of CH50 was observed in both the diabetic and nondiabetic patients, compared to controls. The diabetic patients with periodontitis showed a significantly higher complement activity compared to nondiabetic patients with periodontitis. The C3 and C4 values were significantly elevated in both diabetic and nondiabetic patients when compared with the control group. The elevation being more pronounced in diabetic groups.
Combining Z-buffer Engines for Higher-Speed Rendering (1988)

Described IS a hardware architecture for combining the outputs of a number of z-buffer rendering engines to achieve higher performance than is possible with a single renderer. It allows a combination of renderers to achieve the same pllce!performance ratio as the individual renderers that compose it. and can be extended to create systems with arbitrarily high periormance.The desCribed architecture is based on a fusion of scan-line rendering and the conventional z-buffer algorithm. The frame buffers of several z-buffer engines are modified to scan out z-values as well as color values. Multiplexing devices combine the z/color streams from each pair of frame-buffers. These z/color streams are then combined by further multiplexers, creating a binary tree that funnels the z/color information from the many conventional frame buffers Into a single z/color stream. The color stream is then used to dnve a standard display device.The proposed architecture allows rendering rates of millions and even tens of millions of polygons per second. The basic architecture can be extended with additional hardware to perform antialiasing and texture-mapping.
Communication and Memory Efficient Parallel Decision Tree Construction (2003)

Decision tree construction is an important data mining problem. In this paper, we revisit this problem, with a new goal, i.e. Can we develop an efficient parallel algorithm for decision tree construction that can be parallelized in the same way as algorithms for other major mining tasks ?. We report a new approach to decision tree construction, which we refer to as SPIES (Statistical Pruning of Intervals for Enhanced Scalability). This approach combines RainForest based AVC groups with sampling to achieve memory efficient processing of numerical attributes. Overall, this algorithm has the following properties: 1) no preprocessing or sorting of input data is required, 2) the size of the data-structure required in the main memory is very small, 3) the only disk-traffic required is one pass for splitting nodes for each level of the tree, and no writing-back of data, 4) very low communication volume when this algorithm is parallelized, and 5) the same level of accuracy as an algorithm that does not use sampling or pruning. We show that this algorithm can be efficiently parallelized using the same high-level interface and runtime support that was previously used to parallelize association mining and clustering algorithms. This, we believe, is an important step towards offering high-level interfaces for parallel data mining. Moreover, we have efficiently parallelized this algorithm on a cluster of SMPs, i.e. combining shared memory and distributed memory parallelism, and over disk-resident datasets.
Dual-band dual-polarized microstrip antennas for SAR applications (2002)

In SAR applications two important frequency bands are the L-band, around 1.275 GHz, and the C-band at 5.3 GHz. The nominal bandwidth at both bands is desirable to be about 100 MHz. The authors report the design and construction of a dual band antenna for SAR in which the L band elements are perforated. The configuration is discussed and measurements of impedance and radiation patterns are given.
Glucose sensing via the protein kinase A pathway in <i>Schizosaccharomyces pombe</i> (2005)

The fission yeast Schizosaccharomyces pombe primarily detects glucose via a cAMP-signalling pathway. Components of this pathway include the Git3 G-protein-coupled receptor and a heterotrimeric G-protein, from which the Gpa2 Galpha subunit activates adenylate cyclase (Git2/Cyr1). Three additional proteins, Git1, Git7 and Git10 are required to generate a cAMP response even in a strain expressing an activated form of Gpa2, which is capable of bypassing the loss of the GPCR and Gbetagamma dimer. Therefore, Git1, Git7 and Git10 either act in a G-protein-independent manner or are required to stabilize or assemble a functional signalling complex. Although prior data suggested that the Cgs2 cAMP phosphodiesterase (PDE) does not regulate the cAMP response, we now have evidence that along with adenylate cyclase regulation, PDE activation is important for limiting the response to glucose. Finally, regulation of protein kinase A activation appears to involve both traditional post-translational regulation of the function of the components of the cAMP pathway and glucose-dependent transcriptional regulation of some of these cAMP pathway genes.
Osteoporosis Changes the Amount of Vertebral Trabecular Bone at Risk of Fracture but Not the Vertebral Load Distribution (2001)

Our finite-element models indicated that neither osteopenia nor osteoporosis had any effect on the contribution of the trabecular core to the total load placed on the vertebra. The trabecular core carried about half the load. Our finite-element models indicated that osteoporosis had a significant effect on the amount of trabecular bone at risk of fracture, which increased from about 1% in healthy vertebrae to about 16% for osteoporotic vertebrae.
Low‐Pressure Injection Molding of Ceramic Springs (2008)

Injection molding has important advantages over other methods for the production of advanced ceramic parts with complex shapes. In this work, low‐pressure injection molding was used to produce helical ceramic springs using two different kinds of molds. The ceramic powders used were submicrometer‐sized alumina and partially stabilized zirconia. Sintered alumina and zirconia springs were obtained free of defects, with densities from 96% to 99% of the theoretical value. In preliminary mechanical tests, these ceramic springs supported axial deformations up to 10% before failure.
Inoculation of sugarcane with diazotrophic bacteria (2014)

The sugarcane industry, a strategic crop in Brazil, requires technological improvements in production efficiency to increase the crop energy balance. Among the various currently studied alternatives, inoculation with diazotrophic bacteria proved to be a technology with great potential. In this context, the efficiency of a mixture of bacterial inoculant was evaluated with regard to the agronomic performance and N nutrition of sugarcane. The experiment was carried out on an experimental field of Embrapa Agrobiologia, in Seropédica, Rio de Janeiro, using a randomized block, 2 × 3 factorial design (two varieties and three treatments) with four replications, totaling 24 plots. The varieties RB867515 and RB72454 were tested in treatments consisting of: inoculation with diazotrophic bacteria, N-fertilized control with 120 kg ha-1 N and absolute control (no inoculation and no N fertilizer). The inoculum was composed of five strains of five diazotrophic species. The yield, dry matter accumulation, total N in the shoot dry matter and the contribution of N by biological fixation were evaluated, using the natural 15N abundance in non-inoculated sugarcane as reference. The bacterial inoculant increased the stalk yield of variety RB72454 similarly to fertilization with 120 kg ha-1 N in the harvests of plant-cane and first ratoon crops, however the contribution of biological N fixation was unchanged by inoculation, indicating that the benefits of the inoculant in sugarcane may have resulted from plant growth promotion.
8-Bromo-6-Ethylquinoline and Some Derivatives. (1963)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT8-Bromo-6-Ethylquinoline and Some Derivatives.Karl Altau, James G. Beasley, and Julius D. CappsCite this: J. Chem. Eng. Data 1963, 8, 1, 130–131Publication Date (Print):January 1, 1963Publication History Published online1 May 2002Published inissue 1 January 1963https://pubs.acs.org/doi/10.1021/je60016a039https://doi.org/10.1021/je60016a039research-articleACS PublicationsRequest reuse permissionsArticle Views25Altmetric-Citations-LEARN 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
Identification of Process Window Limiting Structures by Design-Based Defect Binning (2007)

A new methodology is presented for identifying misprinted structures during the qualification of a new photomask. It is based on defect inspection of a focus- and exposure-modulated wafer. Instead of the traditional approach which employs repeater analysis, the new technique bins the defect locations according to the design structures where they occur and assigns them a criticality factor. This method allows for efficient data reduction and prioritization of suspect sites, leading to identification of marginally-printed structures within the patterning process window.
A Case for Hybrid Discrete-Continuous Architectures (2011)

Current technology trends indicate that power- and energy efficiency will limit chip throughput in the future. Current solutions to these problems, either in the way of programmable or fixed-function digital accelerators will soon reach their limits as microarchitectural overheads are successively trimmed. A significant departure from current computing methods is required to carry forward computing advances beyond digital accelerators. In this paper we describe how the energy-efficiency of a large class of problems can be improved by employing a hybrid of the discrete and continuous models of computation instead of the ubiquitous, traditional discrete model of computation. We present preliminary analysis of domains and benchmarks that can be accelerated with the new model. Analysis shows that machine learning, physics and up to one-third of SPEC, RMS and Berkeley suite of applications can be accelerated with the new hybrid model.
Color center conversion by femtosecond pulse laser irradiation in LiF:F_2 crystals (2007)

We report the observation of intense spontaneous emission of green light from LiF:F(2):F(3) (+) centers in active channel waveguides generated in lithium fluoride crystals by near-infrared femtosecond laser radiation. While irradiating the crystal at room temperature with 405 nm light from a laser diode, yellow and green emission was seen by the naked eye. Stripe waveguides were fabricated by translating the crystal along the irradiated laser pulse, and their guiding properties and fluorescence spectra at 540 nm demonstrated. This single-step process inducing a waveguide structure offers a good prospect for the development of a waveguide laser in bulk LiF crystals.
Self-Organizing Map Based User Interface for Visual Surface Inspection (1999)

In visual surface inspection applications, a problem often faced is the collection and labelling of training material. The manual labelling of training samples requires much effort and is error prone since the defect classes may appear difficult to discriminate even for a human. Frequent changes in the inspected material or imaging conditions may lead to impractical often repeating training material collection cycles. We propose a SOM (Self-Organizing Map) based classifier and user interface scheme for visual surface inspection problems. The approach combines the advantages of non-supervised and supervised classification. The SOM based approach supports the labelling of training data, simplifies the retraining for changing material or imaging conditions, provides an intuitive user interface, and is computationally attractive for real-time applications. 1 Introduction Most visual inspection systems are designed for detecting and classifying defects from the surface of th...
Fusion of Semantic and Acoustic Approaches for Spoken Document Retrieval (2003)

Most spoken document retrieval systems use the words derived from a large vocabulary speech recognizer as the internal representation for indexing the document. However, the use of recognition transcripts inherently limits the performance of the system since the size of the dictionary restricts the number of queries for which matches can be found. In this paper we present a new approach to this problem based on combining Probabilistic Latent Semantic Analysis (PLSA) with phonetic indexing. PLSA maps the words in documents and queries into a semantic space in which they can be compared even if they don’t share any common words. Combining this semantic distance with acoustic scores gives an improvement of 6-11 % relative for OOV queries and 4 % relative for all queries on a 75 hour broadcast news indexing task. 1.
Current sharing in the high voltage DC parallel electric power system for the More Electric Aircraft (2016)

The high voltage DC (HVDC) parallel electric power system (EPS) is one of the most promising structures for the More Electric Air-craft (MEA), providing higher performance with less weight and less energy loss. The structure of a typical HVDC parallel EPS is illustrated in this paper. The method to share the load current among the generators in EPS is the key to optimize the performance. An “average current” scheme is derived after comparing different current sharing methods. To compare the EPSs consisting of 2 generators of the same power level and of different power levels, the HVDC parallel EPSs are modeled and the power supply quality including the dynamic responses in transient processes are analyzed by simulations. The results illustrate that the HVDC parallel EPS which consists of generators of the same power level provides a more stable power supply with better dynamic responses. The structure of the parallel connection and the current sharing scheme provide an effective solution for the development in the HVDC EPS for the MEA.
Are both PIVKA-II and alpha-fetoprotein necessary in follow-up management after hepatic resection for hepatocellular carcinoma? (2003)

Preoperative PIVKA-II and/or alpha-fetoprotein levels can predict postoperative prognosis. Measurement of these markers is useful in monitoring recurrence. For following up patients with alpha-fetoprotein-producing tumors, alpha-fetoprotein monitoring only is sufficient to detect recurrence.
Necessity and Extravagance in Maxine Hong Kingston's The Woman Warrior: Art and the Ethnic Experience (1988)

Necessity and Extravagance in Maxine Hong Kingston’s The Woman Warrior: Art and the Ethnic Experience Get access Sau-ling Cynthia Wong Sau-ling Cynthia Wong University of California, Berkeley Search for other works by this author on: Oxford Academic Google Scholar MELUS, Volume 15, Issue 1, March 1988, Pages 3–26, https://doi.org/10.2307/467038 Published: 01 March 1988
Petroleum Electromagnetic Prospecting Advances and Case Studies in China (2010)

Remarkable progress has been made in electromagnetic (EM) techniques as applied to the petroleum industry in instruments, data acquisition, and processing and interpretation in China. Included here is equipment, such as high-power Controlled Source EM (CSEM) acquisition systems, acquisition methods, such as the three dimensional small-bin Continuous Electromagnetic Array acquisition method, Time and Frequency Domain Controlled Source Electromagnetic, Borehole-to-surface Electromagnetic technique and marine magnetotelluric method. Data processing methods, such as fast three dimensional inversion using nonlinear conjugate gradients, and data interpretation methods, like Induced Polarization and Resistivity anomalies for hydrocarbon detection, are also included. These new techniques have been applied in petroleum survey and many cases are in complicated areas. They have successfully served the investigation of deep igneous rock reservoirs, and prediction of potential hydrocarbon targets. The cases indicate that electromagnetic techniques can help seismic survey to effectively detect hydrocarbon reservoir and remarkably improve drilling successes.
[Formation of platelets from cord blood CD34+ cells-derived megakaryocytes induced by S-nitrosoglutathione]. (2006)

To investigate the effect of S-nitrosoglutathione (GSNO), a nitric oxide donor, on platelet production from megakaryocytes differentiated from cord blood CD34(+) cells in vitro, the CD34 (+) cells from eight fresh umbilical cord blood samples by a high-gradient magnetic cell sorting (MACS) system were cultured in serum-free medium for 14 d with thrombopoietin (TPO) 50 ng/ml, IL-3 10 ng/ml, stem cell factor (SCF) 50 ng/ml and rHuGM-CSF 20 ng/ml. Then, CD61 (+) cells were purified by MACS system from these CD34 (+) cells, and were cultured in serum-free medium supplemented with TPO 50 ng/ml, IL-3 10 ng/ml and SCF 50 ng/ml in the presence (treatment group) and absence (control group) of GSNO for 30 min or 2 h. Platelet-sized particles were counted by flow cytometry; megakaryocyte structure was detected by scanning electron microscope. Aggregation of the thrombin-induced platelet particle was observed under inversion microscope. cGMP was assessed by commercial ELISA kit. The results showed that, compared with the control group, the number of platelet-sized particles significantly increased (P<0.05) in the treatment group, in which megakaryocytes presented significant pseudopod formation and extensive membrane blebbing. The platelet particle aggregation could be observed under microscope after thrombin induction. cGMP activity was significantly increased after treatment with GSNO (P<0.05). These results propose that GSNO can facilitate platelet production from megakaryocyte, and it may be partly through cGMP pathway.
Vision and Its Discontents: Valie Export's Invisible Adversaries (2000)

Valie Export's Invisible Adversaries ( Unsichtbare Gegner) opens with a lengthy tracking shot that begins in an apartment building bedroom where a woman named Anna lies asleep. In this shot, the camera backs slowly through the bedroom window and retreats outward to pan across a Vienna cityscape dotted with rooftops, while the voice of a radio newscaster announces the onset of an invasion by a mysterious band of creatures called the Hyksos. The creatures, the announcer continues, have begun to possess Vienna's citizens, and those who are occupied by a Hyksos double are indiscernible from ordinary human beings. The dire news of the Hyksos' ultimate plan to take over the world through an escalation of aggression is intermixed with local news reports and other apparently more mundane affairs. All the while the camera continues to circle ominously about the cityscape. The tracking shot described above bears a resemblance to the opening shot of Alfred Hitchcock's Psycho , and its effects can be better understood through a comparison. At the start of Psycho ,