gebhart/patrepeval huggingface dataset:
SunMap+: an intelligent location-based virtual indoor navigation system using augmented reality (2014)

In today's modern era, with the advent of technology many people rely on GPS systems to find a destination. However, locating a destination within the confines of an indoor environment is still a challenge as GPS signals do not work indoors, and most people still resort to the conventional method of referring to a physical floor plan or directory. This paper sets to present a mobile software application that uses a visual recognition and pedestrian dead reckoning (PDR) system to create an interactive indoor navigation system using augmented reality (AR). In order to provide an intelligent and context-sensitive navigation platform, data from smartphone sensors are utilised to enable the navigation system to work in an indoor environment. These sensors include using the accelerometer, compass and camera - sensors which already exist in today's mobile devices. Using these technologies, a prototype for an Android application called SunMap+ has been developed to showcase the possibilities of indoor navigation using AR in the test environment of Sunway University campus.
Algorithm for Quantifying Frontal EMG Responsiveness for Sedation Monitoring (2014)

Consistent FEMG patterns were found related to standard stimulation of ICU patients. A simple and robust algorithm was developed and good correlation with clinical sedation scores achieved in the development data.
Inequalities for the solutions of the heat equation (1992)

For the solutions u (t, x) of the heat equation <m:math display='block'> <m:mrow> <m:msub> <m:mo>∂</m:mo> <m:mi>t</m:mi> </m:msub> <m:mi>u</m:mi><m:mo>=</m:mo><m:mi>Δ</m:mi><m:mi>u</m:mi><m:mtext> </m:mtext><m:mtext>on</m:mtext><m:mtext> </m:mtext><m:msup> <m:mi>ℝ</m:mi> <m:mo>+</m:mo> </m:msup> <m:mo>×</m:mo><m:msup> <m:mi>ℝ</m:mi> <m:mi>n</m:mi> </m:msup> </m:mrow> </m:math> $${\partial _t}u = \Delta u\quad {\text{on}}\quad {\mathbb{R}^ + } \times {\mathbb{R}^n}$$ satisfying the initial condition <m:math display='block'> <m:mrow> <m:mi>u</m:mi><m:mrow><m:mo>(</m:mo> <m:mrow> <m:mn>0</m:mn><m:mo>,</m:mo><m:mi>x</m:mi></m:mrow> <m:mo>)</m:mo></m:mrow><m:mo>=</m:mo><m:mi>F</m:mi><m:mrow><m:mo>(</m:mo> <m:mi>x</m:mi> <m:mo>)</m:mo></m:mrow><m:mtext> </m:mtext><m:mtext>on</m:mtext><m:mtext> </m:mtext><m:msup> <m:mi>ℝ</m:mi> <m:mi>n</m:mi> </m:msup> </m:mrow> </m:math> $$u\left( {0,x} \right) = F\left( x \right)\quad {\text{on}}\quad {\mathbb{R}^n}$$ for L2(ℝn, dx) functions F, inequalities for the functions D α u (t, x) for any fixed x are derived from both points of view of analyticity in t and integral transforms by the heat kernel.
Significance of detection of occult non-Hodgkin's lymphoma in histologically uninvolved bone marrow by a culture technique (1992)

Abstract Prolonged disease-free survival of patients with recurrent or resistant non-Hodgkin's lymphoma (NHL) has been achieved with high-dose therapy followed by autologous bone marrow transplantation (ABMT). A concern with the use of ABMT is that the marrow that is reinfused may contain undetected NHL cells with the potential to reestablish metastatic disease in the recipient. Using a culture technique that is sensitive for detecting occult lymphoma cells in BM, we analyzed histologically normal marrow harvests from 59 consecutive patients with intermediate- or high-grade NHL who were candidates for high-dose therapy and ABMT. The culture results indicated that 22 of the patients had occult lymphoma in their marrow. Forty-three patients underwent high-dose therapy followed by ABMT. Twenty-four achieved a complete clinical remission. Those with occult lymphoma in their harvests (11 patients) continued to relapse for up to 3 years, whereas no relapses were observed beyond 8 months in 13 patients receiving marrow that did not contain detectable lymphoma cells using the culture technique. The relapses in the patients who achieved a complete remission occurred at sites of prior bulky disease rather than at new sites, suggesting that the ability to detect occult lymphoma cells in marrow is a marker of biologic aggressiveness and/or resistance to therapy, or that the reinfused cells could only grow in previously involved sites. The detection of lymphoma cells in marrow used for ABMT is an important adverse prognostic factor, and appears to be independent of other clinical predictors of outcome such as sensitivity or resistance of disease to prior chemotherapy.
40.4: Glass Substrates for OLED Lighting with High Out‐Coupling Efficiency (2009)

Abstract Glass substrates which realize high out‐coupling efficiency OLEDs were developed. A scattering layer whose matrix was made of high refractive index glass was formed on a glass substrate. The out‐coupling efficiency of an OLED using this substrate is 1.8 times higher compared with an OLED using an untreated glass substrate.
Sequence-Specific Dinucleotide Cleavage Promoted by Synergistic Interactions between Neighboring Modified Nucleotides in DNA (2003)

Sequence-specific cleavage of DNA by restriction endonucleases has been an indispensable tool in modern molecular biology. However, many potential applications are yet to be realized because of the limited number of naturally available restriction specificities. Efforts to expand this repertoire through protein engineering have met considerable challenges and only brought forth modest success. Taking an alternative approach, we developed a methodology to generate modified DNA susceptible to specific cleavage at selected dinucleotide sequences. This method requires the incorporation of two deoxyribonucleotide analogues by a DNA polymerase: a ribonucleotide and a 5'-amino-2',5'-dideoxyribonucleotide, each of which contains a different base. When linked in a 5' to 3' geometry, the two modified nucleotides act synergistically to promote cleavage at the phosphoramidate linkage, thus providing sequence specificity. Using the transferrin receptor gene as an example, we demonstrate that this dinucleotide cleavage generates discrete DNA fragments that can be either visualized by gel electrophoresis or detected by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry.
BF<sub>3</sub>−H<sub>2</sub>O Catalyzed Hydroxyalkylation of Aromatics with Aromatic Aldehydes and Dicarboxaldehydes: Efficient Synthesis of Triarylmethanes, Diarylmethylbenzaldehydes, and Anthracene Derivatives (2009)

BF(3)-monohydrate is found to be an efficient and strong acid catalyst as well as an effective protosolvating medium suitable for the hydroxyalkylation of arenes with aromatic aldehydes. This reaction has been extended to aromatic dialdehydes, such as terephthalic dicarboxaldehyde and isoterephthalic dicarboxaldehyde, for the efficient synthesis of diarylmethylbenzaldehydes, which are useful synthons for various organic transformations. Further, successful one step convergent synthesis of various synthetically useful anthracene derivatives from phthalaldehyde was also achieved. BF(3)-H(2)O is less expensive and acts as an efficient substitute for nonoxidizing strong protic acids/superacids.
MTG-DB: a repository for music audio processing (2004)

Content-based audio processing researchers need audio and its related metadata to develop and test algorithms. We present a common repository of audio, metadata, ontologies and algorithms. We detail the hardware implementation, in the form of massive storage and computation cluster, the software and databases design and the ontology management of the current system. The repository, as far as copyright licenses allow, is open to researchers outside the music technology group to test and evaluate their algorithms.
Cobalt nanoparticles encapsulated in nitrogen-doped carbon as a bifunctional catalyst for water electrolysis (2014)

The hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are important electrocatalytic processes in water electrolyzers. Identifying efficient non-precious metal catalysts for HER and OER remains a great challenge for applications in different kinds of electrolyzers. Herein, we report that cobalt nanoparticles encapsulated in nitrogen-doped carbon (Co@N–C) show high activity and durability for HER in a wide pH range and for OER in alkaline medium as a bifunctional catalyst. The HER and OER activities of Co@N–C are higher than those of multiwall carbon nanotube and iron nanoparticles encapsulated in nitrogen-doped carbon with a similar content of nitrogen. Electrolyzer prototypes using Nafion NRE-212 as electrolyte membrane and Co@N–C as cathode or anode catalyst are constructed, showing potential practical applications in water splitting.
Opaque-2 is a transcriptional activator that recognizes a specific target site in 22-kD zein genes. (1992)

opaque-2 (o2) is a regulatory locus in maize that plays an essential role in controlling the expression of genes encoding the 22-kD zein proteins. Through DNase I footprinting and DNA binding analyses, we have identified the binding site for the O2 protein (O2) in the promoter of 22-kD zein genes. The sequence in the 22-kD zein gene promoter that is recognized by O2 is similar to the target site recognized by other "basic/leucine zipper" (bZIP) proteins in that it contains an ACGT core that is necessary for DNA binding. The site is located in the -300 region relative to the translation start and lies about 20 bp downstream of the highly conserved zein gene sequence motif known as the "prolamin box." Employing gel mobility shift assays, we used O2 antibodies and nuclear extracts from an o2 null mutant to demonstrate that the O2 protein in maize endosperm nuclei recognizes the target site in the zein gene promoter. Mobility shift assays using nuclear proteins from an o2 null mutant indicated that other endosperm proteins in addition to O2 can bind the O2 target site and that O2 may be associated with one of these proteins. We also demonstrated that in yeast cells the O2 protein can activate expression of a lacZ gene containing a multimer of the O2 target sequence as part of its promoter, thus confirming its role as a transcriptional activator. A computer-assisted search indicated that the O2 target site is not present in the promoters of zein genes other than those of the 22-kD class. These data suggest a likely explanation at the molecular level for the differential effect of o2 mutations on expression of certain members of the zein gene family.
Classification of microscopic images of breast tissue (2004)

Breast cancer is the most common form of cancer among women. The diagnosis is usually performed by the pathologist, that subjectively evaluates tissue samples. The aim of our research is to develop techniques for the automatic classification of cancerous tissue, by analyzing histological samples of intact tissue taken with a biopsy. In our study, we considered 200 images presenting four different conditions: normal tissue, fibroadenosis, ductal cancer and lobular cancer. Methods to extract features have been investigated and described. One method is based on granulometries, which are size-shape descriptors widely used in mathematical morphology. Applications of granulometries lead to distribution functions whose moments are used as features. A second method is based on fractal geometry, that seems very suitable to quantify biological structures. The fractal dimension of binary images has been computed using the euclidean distance mapping. Image classification has then been performed using the extracted features as input of a back-propagation neural network. A new method that combines genetic algorithms and morphological filters has been also investigated. In this case, the classification is based on a correlation measure. Very encouraging results have been obtained with pilot experiments using a small subset of images as training set. Experimental results indicate the effectiveness of the proposed methods. Cancerous tissue was correctly classified in 92.5% of the cases.
Query processing with description logic ontologies over object-wrapped databases (2003)

This paper presents an approach to answering queries over an ontology modelled using a description logic. The ontology acts as a global schema, providing a declarative description of the concepts of the domain, the instances of which are stored in (potentially many) object-wrapped sources. Queries are expressed using terms from the rich vocabulary of the ontology, and are translated into an equivalent calculus expression, which references only the objects available in the source databases. The query is then optimized on the basis of information from the ontology and the source databases. Distinctive features of the approach include: the use of the expressive ALCQI description logic, which supports both ontology definition and query expression; the adoption of a global-as-view approach to relating the ontology to the sources; and the use of the ontology to direct semantic optimization of queries phrased over specific sources. The approach is being developed in, and is illustrated using examples from, bioinformatics.
Issues in Advanced Television Technology (1996)

Drawn from the pages of his popular ¦Advanced Television¦ column in TV Technology magazine, Issues in Advanced Television Technology collects the new television writings of technical author S. Merrill Weiss. Noted for his relaxed, conversational style and easily understood explanations, Weiss leads the reader on an enjoyable trip through the latest developments, making highly complex subjects accessible to those with all levels of experience. His material is of value to business managers making strategic decisions, technical managers forming implementation choices, as well as system designers and operators preparing for future work assignments. Included in the discussion are the interests of broadcasting, cable, wireless cable, telcos, DBS, and packaged media. Covering the broad range of new technologies with a depth not achieved elsewhere short of textbooks, Weiss introduces subjects such as digital video compression, transmission of digital signals, audio compression, adaptive equalizers, packetization, transport and program streams, multiplexing, MPEG-2, serial digital jitter, storage and servers, data broadcasting, and the motivations of the players in the media of the future. Merill's articles are collected by many, but early back issues are no longer available. Now, get all the articles in one place, organized by topic, updated and indexed. Catch up on what you've missed! Take advantage of the easy access. Increase your knowledge. Prepare for your future. Let Issues in Advanced Television Technology take you on an exploration of the marvels of the next generation of video technology.S Merrill Weiss is an award-winning consultant in electronic media technology, technology management, and management. He has nearly three decades of personal experience developing and implementing new television technologies, participating in the writing of standards, and generally thinking about how to move the industry forward. Through his regular monthly series of articles, and now through this, his second book, he shares his understanding of where things are going.
Emission rate and chemical state estimation by 4-dimensional variational inversion (2007)

Abstract. This study aims to assess the potential and limits of an advanced inversion method to estimate pollutant precursor sources mainly from observations. Ozone, sulphur dioxide, and partly nitrogen oxides observations are taken to infer source strength estimates. As methodology, the four-dimensional variational data assimilation technique has been generalised and employed to include emission rate optimisation, in addition to chemical state estimates as usual objective of data assimilation. To this end, the optimisation space of the variational assimilation system has been complemented by emission rate correction factors of 19 emitted species at each emitting grid point, involving the University of Cologne mesoscale EURAD model. For validation, predictive skills were assessed for an August 1997 ozone episode, comparing forecast performances of pure initial value optimisation, pure emission rate optimisation, and joint emission rate/initial value optimisation. Validation procedures rest on both measurements withheld from data assimilation and prediction skill evaluation of forecasts after the inversion procedures. Results show that excellent improvements can be claimed for sulphur dioxide forecasts, after emission rate optimisation. Significant improvements can be claimed for ozone forecasts after initial value and joint emission rate/initial value optimisation of precursor constituents. The additional benefits applying joint emission rate/initial value optimisation are moderate, and very useful in typical cases, where upwind emission rate optimisation is essential. In consequence of the coarse horizontal model grid resolution of 54 km, applied in this study, comparisons indicate that the inversion improvements can rest on assimilating ozone observations only, as the inclusion of NOx observations does not provide additional forecast skill. Emission estimates were found to be largely independent from initial guesses from emission inventories, demonstrating the potential of the 4D-var method to infer emission rate improvements. The study also points to the need for improved horizontal model resolution to more efficient use of NOx observations.
Topical haemoglobin spray for diabetic foot ulceration (2015)

The incorporation of a haemoglobin spray solution within this cohort of DFU resulted in a positive improvement in wound healing and slough elimination. Further work in this area is recommended to increase the evidence.
Feasibility study for compressive multi-dimensional integral imaging (2013)

This paper describes a generalized framework for single-exposure acquisition of multi-dimensional scene information using integral imaging system based on compressive sensing. In the proposed system, a multi-dimensional scene containing a plurality of information such as 3D coordinates, spectral and polarimetric data is captured by integral imaging optics. The image sensor uses pixel-wise filtering elements arranged randomly. The multi-dimensional original object is reconstructed using an algorithm with a sparsity constraint. The proposed system is demonstrated with simulations and feasible optical experiments based on synthetic aperture integral imaging using multi-dimensional objects including 3D coordinates, spectral, and polarimetric information.
Band gap tailoring of Nd3+-doped TiO2 nanoparticles (2003)

Undoped and Nd3+-doped TiO2 nanoparticles were synthesized by chemical vapor deposition in order to tailor the band gap of TiO2. The doping reduced the band gap. The band gap was measured by ultraviolet-visible light absorption experiments and by near-edge x-ray absorption fine structure. The maximum band gap reduction was 0.55 eV for 1.5 at. % Nd-doped TiO2 nanoparticles. Density functional theory calculations using the generalized gradient approximation with the linearized augmented plane wave method were used to interpret the band gap narrowing. The band gap narrowing was primarily attributed to the substitutional Nd3+ ions which introduced electron states into the band gap of TiO2 to form the new lowest unoccupied molecular orbital.
On the advantages of polar and log-polar mapping for direct estimation of time-to-impact from optical flow (1993)

The application of an anthropomorphic retina-like visual sensor and the advantages of polar and log-polar mapping for visual navigation are investigated. It is demonstrated that the motion equations that relate the egomotion and/or the motion of the objects in the scene to the optical flow are considerably simplified if the velocity is represented in a polar or log-polar coordinate system, as opposed to a Cartesian representation. The analysis is conducted for tracking egomotion but is then generalized to arbitrary sensor and object motion. The main result stems from the abundance of equations that can be written directly that relate the polar or log-polar optical flow with the time to impact. Experiments performed on images acquired from real scenes are presented.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Nucleophilic displacement reactions of .beta.-amino mercaptans (1967)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNucleophilic displacement reactions of .beta.-amino mercaptansJames S. Dix and Clarence R. BressonCite this: J. Org. Chem. 1967, 32, 2, 282–285Publication Date (Print):February 1, 1967Publication History Published online1 May 2002Published inissue 1 February 1967https://pubs.acs.org/doi/10.1021/jo01288a007https://doi.org/10.1021/jo01288a007research-articleACS PublicationsRequest reuse permissionsArticle Views231Altmetric-Citations5LEARN 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
Arthritis, a complex connective and synovial joint destructive autoimmune disease (2014)

Animal models play a vital role in simplifying the complexity of pathogenesis and understanding the indefinable processes and diverse mechanisms involved in the progression of disease, and in providing new knowledge that may facilitate the drug development program. Selection of the animal models has to be carefully done, so that there is morphologic similarity to human arthritic conditions that may predict as well as augment the effective screening of novel antiarthritic agents. The review describes exclusively animal models of rheumatoid arthritis (RA) and osteoarthritis (OA). The development of RA has been vividly described using a wide variety of animal models with diverse insults (viz. collagen, Freund's adjuvant, proteoglycan, pristane, avridine, formaldehyde, etc.) that are able to simulate/trigger the cellular, biochemical, immunological, and histologic alterations, which perhaps mimic, to a great extent, the pathologic conditions of human RA. Similarly, numerous methods of inducing animal models with OA have also been described (such as spontaneous, surgical, chemical, and physical methods including genetically manipulated animals) which may give an insight into the events of alteration in connective tissues and their metabolism (synovial membrane/tissues along with cartilage) and bone erosion. The development of such arthritic animal models may throw light for better understanding of the etiopathogenic mechanisms of human arthritis and give new impetus for the drug development program on arthritis, a crippling disease.
Pretty as You Please, Curling Films Turn Themselves Into Nanodevices (2006)

Nanometer-thick films that roll themselves into tubes and fold up into elegant shapes promise a highly controllable way to make tiny gadgets. (Read more.)