gebhart/patrepeval huggingface dataset:
Object segmentation and tracking using video locales (2003)

In this paper, we present a new technique based on feature localization for segmenting and tracking objects in videos. A video locale is a sequence of image feature locales that share similar features (color, texture, shape, and motion) in the spatio-temporal domain of videos. Image feature locales are grown from tiles (blocks of pixels) and can be non-disjoint and non-connected. To exploit the temporal redundancy in digital videos, two algorithms (intra-frame and inter-frame) are used to grow locales efficiently. Multiple motion tracking is achieved by tracking and performing tile-based dominant motion estimation for each locale separately.
Anisotropic Seeded Growth of Cu–M (M = Au, Pt, or Pd) Bimetallic Nanorods with Tunable Optical and Catalytic Properties (2013)

A general strategy to synthesize Cu–M (M = Au, Pt, or Pd) bimetallic nanorods has been demonstrated based on a seeded co-reduction method. In this approach, noble metal nanoparticles serve as seeds, and newly reduced Cu atoms are subsequently nucleated on one side of the seeds, resulting in Janus nanoparticles with an M-rich and a Cu-rich portion. The elongation of the particles originates from the site-specific deposition of Cu clusters on the Cu-rich side of these Janus nanoparticles by retarding reduction kinetics of Cu through galvanic replacement. Using this approach, Cu–M alloyed nanorods can be conveniently synthesized with tunable composition, crystal structure, and aspect ratio. These nanorods have also been demonstrated as a unique system for investigation of the structural and compositional effects on their optical and catalytic properties.
Dental anxiety reduction and dental attendance after treatment in a dental fear clinic: a follow‐up study (2000)

It is concluded that, although a reduction in dental anxiety level was present, a relatively large proportion of patients did not improve, in terms of both dental anxiety and dental attendance.
Understanding nitrate assimilation and its regulation in microalgae (2015)

Nitrate assimilation is a key process for nitrogen (N) acquisition in green microalgae. Among Chlorophyte algae, Chlamydomonas reinhardtii has resulted to be a good model system to unravel important facts of this process, and has provided important insights for agriculturally relevant plants. In this work, the recent findings on nitrate transport, nitrate reduction and the regulation of nitrate assimilation are presented in this and several other algae. Latest data have shown nitric oxide (NO) as an important signal molecule in the transcriptional and posttranslational regulation of nitrate reductase and inorganic N transport. Participation of regulatory genes and proteins in positive and negative signaling of the pathway and the mechanisms involved in the regulation of nitrate assimilation, as well as those involved in Molybdenum cofactor synthesis required to nitrate assimilation, are critically reviewed.
Domain communication in the dynamical structure of human immunodeficiency virus 1 protease. (1990)

A dynamical model for the structure of the human immunodeficiency virus 1 (HIV-1) protease dimer in aqueous solution has been developed on the basis of molecular dynamics simulation. The model provides an accurate account of the crystal geometry and also a prediction of the structural reorganization expected to occur in the protein in aqueous solution compared to the crystalline environment. Analysis of the results by means of dynamical cross-correlation coefficients for atomic displacements indicates that domain-domain communication is present in the protein in the form of a molecular "cantilever" and is likely to be involved in enzyme function at the molecular level. The dynamical structure also suggests information that may ultimately be useful in understanding and further development of specific inhibitors of HIV-1 protease.
Evaluating PID adaptive techniques for industrial implementation (2002)

This paper outlines several adaptive techniques considered for implementation in the PID controller. It presents frequency domain interpolators for tracking ultimate gain and ultimate period, model-free tuning based on balancing P and I terms, and the adaptation of controller switching and model switching with the interpolation of parameters. From the perspective of the authors, a model switching technique using the interpolation of parameters offers a clear advantage, particularly for feedforward/feedback loops and multivariable control.
Prediction of Abnormal Pressure Based on Seismic Data: A Case Study of Exploratory Well Drilling in Pertamina UEP I and UEP II Work Areas (1984)

Abstract In oil fields while drilling exploratory wells one is often confronted with various unexpected problems. One such problem is abnormal which should be counter balanced with mud weight. Predictions of formation pressure or estimates of mud weight required may be undertaken by using seismic data and other data of a neighbouring well, such as has been done by HOTTMANN, JOHNSON and BELLOTTI, GIACCA. The method of modifying predictions for determining the tentative mud weight has been already used in exploration wells in the work areas of PERTAMINA Unit EP I and Unit EP III. Tentative mud weight determination is based on geophysical data (seismic interval velocity) and data of the nearest well to the location. The accuracy of such determinations is very much dependent on the precision of the above data. Statistics show that errors are in the range of 5 - 10%.
The SNARE Vti1a-beta is localized to small synaptic vesicles and participates in a novel SNARE complex. (2000)

Specific soluble N-ethylmaleimide-sensitive factor attachment protein (SNAP) receptor (SNARE) proteins are required for different membrane transport steps. The SNARE Vti1a has been colocalized with Golgi markers and Vti1b with Golgi and the trans-Golgi network or endosomal markers in fibroblast cell lines. Here we study the distribution of Vti1a and Vti1b in brain. Vti1b was found in synaptic vesicles but was not enriched in this organelle. A brain-specific splice variant of Vti1a was identified that had an insertion of seven amino acid residues next to the putative SNARE-interacting helix. This Vti1a-beta was enriched in small synaptic vesicles and clathrin-coated vesicles isolated from nerve terminals. Vti1a-beta also copurified with the synaptic vesicle R-SNARE synaptobrevin during immunoisolation of synaptic vesicles and endosomes. Therefore, both synaptobrevin and Vti1a-beta are integral parts of synaptic vesicles throughout their life cycle. Vti1a-beta was part of a SNARE complex in nerve terminals, which bound N-ethylmaleimide-sensitive factor and alpha-SNAP. This SNARE complex was different from the exocytic SNARE complex because Vti1a-beta was not coimmunoprecipitated with syntaxin 1 or SNAP-25. These data suggest that Vti1a-beta does not function in exocytosis but in a separate SNARE complex in a membrane fusion step during recycling or biogenesis of synaptic vesicles.
Irregular Breathing Classification From Multiple Patient Datasets Using Neural Networks (2012)

Complicated breathing behaviors including uncertain and irregular patterns can affect the accuracy of predicting respiratory motion for precise radiation dose delivery. So far investigations on irregular breathing patterns have been limited to respiratory monitoring of only extreme inspiration and expiration. Using breathing traces acquired on a Cyberknife treatment facility, we retrospectively categorized breathing data into several classes based on the extracted feature metrics derived from breathing data of multiple patients. The novelty of this paper is that the classifier using neural networks can provide clinical merit for the statistical quantitative modeling of irregular breathing motion based on a regular ratio representing how many regular/irregular patterns exist within an observation period. We propose a new approach to detect irregular breathing patterns using neural networks, where the reconstruction error can be used to build the distribution model for each breathing class. The proposed irregular breathing classification used a regular ratio to decide whether or not the current breathing patterns were regular. The sensitivity, specificity, and receiver operating characteristiccurve of the proposed irregular breathing pattern detector was analyzed. The experimental results of 448 patients' breathing patterns validated the proposed irregular breathing classifier.
Magnetic field tuning of interface electronic properties in manganite-titanate junctions (2008)

We have investigated epitaxial Nd0.5Sr0.5MnO3∕SrTi0.9998Nb0.0002O3(110) (NSMO/Nb:STO) junctions wherein a metal-insulator transition can be induced by magnetic field in the NSMO layer. The NSMO/Nb:STO junctions show highly rectifying current density–voltage (J-V) characteristics, in accord with the conventional theory for a Schottky (or a p-n) diode. The forward bias J-V, as well as the reverse bias capacitance-voltage characteristics, has revealed a built-in potential of 0.8–0.9eV. In the reverse bias region, a large positive magnetocapacitance has been observed at 5 and 50K, suggesting that the effective carrier density of NSMO is modified by the magnetic field.
Robust object tracking using kernalized correlation filters (KCF) and Kalman predictive estimates (2017)

Visual object tracking and detection is an advanced interdisciplinary research area which is crucial for many surveillance security applications. In this paper, we aim to track moving objects more accurately and significantly faster when compared to other approaches. This can be achieved through Kernalized Correlation Filters (KCF). The proposed work adopts a novel approach where the KCF filter is enhanced by integrating it with Kalman filter. The integrated Kalman based KCF (KKCF) tracker outperforms the traditional KCF by performing well for outlier or failure cases which is corrected through Kalman filter. Experimental results show the performance compared to KCF and other existing methods.
Effects of Voluntary Breathing on Force Responses to Electrical Stimulation (ES) of Finger Extensors : A Pilot Study (2007)

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Demodicosis in two cats seropositive for feline immunodeficiency virus (1989)

Two cats were diagnosed with generalized demodicosis. Serotest results were negative for FeLV and positive for feline immunodeficiency virus. In one cat, demodicosis resolved in response to topical application of lime-sulfur solution, but the other cat was euthanatized.
Insect pheromones (1968)

The evidence for intraspecies chemical communication in insects is reviewed, with emphasis on those studies where known organic compounds have been implicated. These signal-carrying chemicals are known as pheromones. There are two distinct types of pheromones, releasers and primers. Releaser pheromones initiate immediate behavioral responses in insects upon reception, while primer pheromones cause physiological changes in an animal that ultimately result in a behavior response.Chemically identified releaser pheromones are of three basic types: those which cause sexual attraction, alarm behavior, and recruitment. Sex pheromones release the entire repertoire of sexual behavior. Thus a male insect may be attracted to and attempt to copulate with an inanimate object that has sex pheromone on it. It appears that most insects are rather sensitive and selective for the sex pheromone of their species. Insects show far less sensitivity and chemospecificity for alarm pheromones. Alarm selectivity is based more on volatility than on unique structural features. Recruiting pheromones are used primarily in marking trails to food sources. Terrestrial insects lay continuous odor trails, whereas bees and other airborne insects apply the substances at discrete intervals.It appears that a complex pheromone system is used by the queen bee in the control of worker behavior. One well-established component of this system is a fatty acid, 9-ketodecenoic acid, produced by the queen and distributed among the workers. This compound prevents the development of ovaries in the workers and inhibits their queen-rearing activities. In addition, the same compound is used by virgin queen bees as a sex attractant.
The Chemical Basis of the Host Selection in the Catalpa Sphinx, Ceratomia catalpae (Lepidoptera, Sphingitlae)1 (1963)

Journal Article The Chemical Basis of the Host Selection in the Catalpa Sphinx, Ceratomia catalpae (Lepidoptera, Sphingitlae) Get access J. K. Nayar, J. K. Nayar Department of Entomology, University of Illinois, Urbana Search for other works by this author on: Oxford Academic Google Scholar G. Fraenkel G. Fraenkel Department of Entomology, University of Illinois, Urbana Search for other works by this author on: Oxford Academic Google Scholar Annals of the Entomological Society of America, Volume 56, Issue 1, 1 January 1963, Pages 119–122, https://doi.org/10.1093/aesa/56.1.119 Published: 01 January 1963 Article history Accepted: 15 January 1962 Published: 01 January 1963
Intrinsic properties of reverse transcriptase in reverse transcription (1989)

The intrinsic properties of reverse transcriptase in reverse transcription were studied using a synthetic, partial ovalbumin mRNA with a synthetic DNA oligonucleotide annealed to the 3'-end of the RNA as a model substrate. With or without concomitant cDNA synthesis, the RNase H activity of avian myeloblastosis virus (AMV)-reverse transcriptase cleaved the substrate at a site which would leave a hybrid of between 7 and 14 base pairs between the 3' termini of the RNA and DNA oligonucleotide. Variability in the exact size of the hybrid probably reflects some weak base preference for cleavage by the enzyme. These short hybrids can be recognized as substrates by Escherichia coli RNase H and can be utilized by reverse transcriptase as sites for continuation of cDNA synthesis. Substrates with 5'-triphosphorylated termini, 3'-OH, 3'-phosphate, 3'-end hairpin structures and 20 base pair hybrids on the middle region of long RNA more than 300 bases or on circular RNA were all cleaved by AMV-reverse transcriptase-associated RNase H, indicating that the RNase H activity is essentially regarded as an endonuclease degrading RNA moiety in RNA-DNA hybrid. The modes of action of reverse transcriptase from murine leukemia virus and Rous-associated virus 2 were the same as that of AMV-reverse transcriptase, except that the size of the remaining hybrid and the specificity for cleavage depended on the reverse transcriptase. We propose a possible model to explain the mode of action of RNase H and RNA-dependent DNA polymerase activities in reverse transcription.
Are CD44 variant isoforms involved in human tumour progression? (1995)

The transmembrane glycoprotein CD44 exists in a variety of isoforms generated by alternative splicing of the pre-mRNA. In a rat metastasis model, certain variant isoforms (containing exon 6v) are causally involved in lung metastasis formation. We have summarized the data obtained to date on the expression of CD44 variant isoforms in human tumour progression. In non-Hodgkin lymphomas, expression of exon 6v containing isoforms is an independent prognostic factor indicating an adverse prognosis. Upregulation of exon 9v containing isoforms in gastric and renal cell carcinomas relates to a poor prognosis of patients. In colorectal carcinomas, CD44-9v isoforms are strongly expressed already in early adenomas; CD44-6v isoforms are upregulated in late adenomas along with ras and TP53 mutations. No expression of variant isoforms has been detectable in neuroblastomas, but significant downregulation of CD44s correlates inversely with tumour progression and N-myc amplification. Only in breast carcinoma has no correlation of CD44 expression with survival or any other prognostic marker been established. Evaluation of CD44 isoform expression by immunohistochemistry in cases of non-Hodgkin lymphoma, gastric, colon and renal cell carcinomas, as well as neuroblastomas, may be a useful diagnostic parameter indicating invasive processes.
Interactive dual-volume rendering visualization with real-time fusion and transfer function enhancement (2006)

Dual-modality imaging scanners combining functional PET and anatomical CT constitute a challenge in volumetric visualization that can be limited by the high computational demand and expense. This study aims at providing physicians with multi-dimensional visualization tools, in order to navigate and manipulate the data running on a consumer PC. We have maximized the utilization of pixel-shader architecture of the low-cost graphic hardware and the texture-based volume rendering to provide visualization tools with high degree of interactivity. All the software was developed using OpenGL and Silicon Graphics Inc. Volumizer, tested on a <i>Pentium mobile</i> CPU on a PC notebook with 64M graphic memory. We render the individual modalities separately, and performing real-time per-voxel fusion. We designed a novel "alpha-spike" transfer function to interactively identify structure of interest from volume rendering of PET/CT. This works by assigning a non-linear opacity to the voxels, thus, allowing the physician to selectively eliminate or reveal information from the PET/CT volumes. As the PET and CT are rendered independently, manipulations can be applied to individual volumes, for instance, the application of transfer function to CT to reveal the lung boundary while adjusting the fusion ration between the CT and PET to enhance the contrast of a tumour region, with the resultant manipulated data sets fused together in real-time as the adjustments are made. In addition to conventional navigation and manipulation tools, such as scaling, LUT, volume slicing, and others, our strategy permits efficient visualization of PET/CT volume rendering which can potentially aid in interpretation and diagnosis.
High-speed TDMA techniques (2002)

High-speed time division multi-access (TDMA) optical communication systems will be necessary to meet the growing need for bandwidth-on-demand services in local and metropolitan area networks. Recently, many of the technological building blocks necessary to implement such a network have been demonstrated in research laboratories. In this paper, we will review progress towards the realization of TDMA communications systems.
OSA and atherosclerosis. (2012)

Untreated obstructive sleep apnea (OSA) is increasingly recognized as a risk factor contributing to cardiovascular morbidity and mortality. Research in recent decades has uncovered many components of the complex pathological events leading to the atherosclerotic vascular diseases in OSA, which involve heightened oxidative stress as a result of intermittent hypoxia, vascular inflammation, activation of platelet and coagulation cascades, endothelial dysfunction and ultimately the formation of atherosclerotic plagues. The close association of OSA and conventional cardiovascular risk factors including hypertension, diabetes mellitus, dyslipidemia and obesity adds to the adverse cardiovascular sequelae. Further studies are required to clarify further on the pathophysiological processes, and the effect size of OSA therapy, and other potential preventive strategies.
Photo-reflectance characterization of USJ activation in millisecond annealing (2009)

Photo-reflectance (PR) provides an optical means for rapid and precise measurement of near-surface electric fields in semiconductor materials. This paper details the use of photo-reflectance to characterize dopant activation in ultra-shallow junction (USJ) structures formed using millisecond anneal processes. USJ structures were formed in silicon using 500eV boron implantation with a dose of 10<sup>15</sup>/cm<sup>2</sup>, followed by flash anneals at 1250-1350°C. Reference metrology was performed using secondary ion mass spectroscopy (SIMS) and various sheet resistance (R<sub>s</sub>) methods. Methods to calibrate photo-reflectance signals to active carrier concentration in USJ structures, including halo-doped samples, are described. Photo-reflectance is shown to be highly sensitive to active dopant concentration in USJ structures formed by millisecond annealing. Additionally, PR provides fast "on-product" measurement capability.
The melt-growth and characterization of cadmium telluride (1977)

Developments in the melt-growth of CdTe are reviewed particularly with respect to techniques for controlling the dissociation pressure. The potential merits of Pressure Balancing are considered together with the results of a preliminary LEC growth investigation. The characterization of the LEC crystals involves a survey of the main defects-low angle grain boundaries twins, dislocations, precipitates, impurities and impurity defects-together with a discussion on their origin, and experience and suggestions for their elimination or control.
Ultra-Thin Zeolite Films Through Simple Self-Assembled Processes (1999)

Zeolite thin films are very promising as highly selective separation membranes, sensors, conductors, and optoelectronic devices, and a wide variety of methods for their preparation have been reported. In this report, the authors describe their recent use of self-assembled monolayer techniques to prepare ultra-thin films of zeolites on silicon wafers. In an aqueous colloidal solution of zeolite particles, an array of the amphiphilic hexanoic acid could induced deposition of a zeolite film through hydrophobic interactions. The method was found to be simpler and less expensive than those previously reported.
Automatic metadata extraction and indexing for reusing e-learning multimedia objects (2007)

In this paper we present the architecture of a Digital Library for enabling the reusing of audiovisual documents in an e-Learning context. The reuse of Learning Objects is based on automatically extracted descriptors carrying a semantic meaning for the professional that uses these Learning Objects to prepare new interactive multimedia lectures. The presented system is based on MILOS, a general purpose Multimedia Content Management System created to support design and effective implementation of digital library applications. MILOS supports the storage andcontent based retrieval of any multimedia documents whose descriptions are provided by using arbitrary metadata models represented in XML. The objective is to demonstrate the reuse of digital content, as video documents or Power Point presentations, by exploiting existing technologies for automatic extraction of metadata (OCR, speech recognition, cut detection, MPEG-7 visual descriptors, etc.). The search interface assists the user of the system in the retrieval the multimedia objects in the collection, by combining full-text retrieval on text extracted and metadata, and similarity search on the MPEG-7 visual descriptors.