gebhart/patrepeval huggingface dataset:
Aquatic debris monitoring using smartphone-based robotic sensors (2014)

Monitoring aquatic debris is of great interest to the ecosystems, marine life, human health, and water transport. This paper presents the design and implementation of SOAR — a vision-based surveillance robot system that integrates an off-the-shelf Android smartphone and a gliding robotic fish for debris monitoring. SOAR features real-time debris detection and coverage-based rotation scheduling algorithms. The image processing algorithms for debris detection are specifically designed to address the unique challenges in aquatic environments. The rotation scheduling algorithm provides effective coverage of sporadic debris arrivals despite camera's limited angular view. Moreover, SOAR is able to dynamically offload computation-intensive processing tasks to the cloud for battery power conservation. We have implemented a SOAR prototype and conducted extensive experimental evaluation. The results show that SOAR can accurately detect debris in the presence of various environment and system dynamics, and the rotation scheduling algorithm enables SOAR to capture debris arrivals with reduced energy consumption.
Microbeads mediated oral plasmid DNA delivery using polymethacrylate vectors: an effectual groundwork for colorectal cancer (2014)

This study was aimed to develop and evaluate p53 polyplex-loaded enteric-coated calcium pectinate microbeads for oral gene delivery as an effective novel alternative for colorectal cancer therapy. Mutation in p53 is the key event in colorectal cancer (CRC) and an important target for the treatment of CRC through gene therapy. Polymethacrylates-based non-viral vectors were evaluated for their ability to complex, protect and transfect p53 (wt) into colon cancer cell line. Polyplexes were formulated by complexation of cationic polymer with anionic pDNA at different N/P ratios. p53 polyplex-loaded calcium pectinate (CP) microbeads were prepared by ionotropic gelation of pectin with calcium chloride and coated with Eudragit® S100. In vitro release studies showed that enteric-coated CP microbeads protected the release of p53 polyplex in upper GIT with less than 10% release. In-vitro cell line studies and in vivo studies in rat showed that polymethacrylate carrier could transfect the pDNA effectively. Results of in vivo gene expression study further confirmed the ability of enteric-coated calcium pectinate microbeads to deliver pDNA specifically to rat colon. Conclusively, enteric-coated calcium pectinate microbeads released p53 polyplex specifically in colon and could serve as an effective alternative for CRC therapy.
Iodine‐Induced Gold‐Nanoparticle Fusion/Fragmentation/Aggregation and Iodine‐Linked Nanostructured Assemblies on a Glass Substrate (2003)

Iodine glue! Spontaneous iodine chemisorption on gold nanoparticles is demonstrated. The concomitant electron injection into gold nanoparticles results in particle fusion, fragmentation, and aggregation, excess KI addition leads to the formation of nanocrystals (see scheme). Surprisingly, iodine-“glued” surface-bound nanostructured assemblies of gold nanoparticles can be constructed on an amino-functionalized solid support by stepwise derivatization with colloidal Au and KI solution. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2003/z19327_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Improved reliability of AlGaAs/GaAs heterojunction bipolar transistors with a strain-relaxed base (2002)

The authors reveal a key to improving the life of MOCVD-grown AlGaAs/GaAs heterojunction bipolar transistors with carbon-doped base. In addition to presenting new findings on current gain degradation properties, it is shown that the importance of lattice strain relaxation in a carbon-doped base layer. Indium was incorporated into C-doped GaAs to relax strain by controlling the lattice constant in the base layer, which was slightly shrunk by carbon doping. Although lifetime testing is still underway, the median life is estimated to be longer than 2.8 /spl times/ 10/sup 6/ hours and 1.1 /spl times/ 10/sup 5/ hours where the collector current density is 10 kA/cm/sup 2/and 50 kA/cm/ /sup 2/, respectively.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Expression of TGF-beta gene in adult T cell leukemia (1988)

Peripheral mononuclear cells from adult T cell leukemia (ATL) patients were analyzed in comparison with other types of leukemia cells, for the expression of transforming growth factor-beta (TGF-beta) mRNA, for the presence of TGF-beta activity (colony stimulating activity for normal rat kidney fibroblasts [NRK]) in conditioned medium and for their susceptibility to exogenous TGF-beta. Highly elevated TGF-beta mRNA levels were observed in all five ATL cell samples tested; however, in three acute myelogenous leukemia (AML) samples, in one acute lymphatic leukemia (ALL), and one chronic myelogenous leukemia (CML), TGF-beta expression was relatively lower. In normal peripheral mononuclear cells TGF-beta mRNA was weakly detectable. Colony stimulating activity for NRK found in the conditioned medium from ATL cells as well as other leukemia cells correlated well with the levels of TGF-beta mRNA expression. In all three ATL samples tested, stimulation of 3H- thymidine uptake by purified TGF-beta from platelets was apparent. These results suggest that ATL cells are secreting active TGF-beta in a relatively high amount, as compared with other leukemia cells, and may proliferate in response to the factor via an autocrine manner. Furthermore, considering that TGF-beta stimulates bone resorption, we can speculate that the relatively high amount of TGF-beta in ATL cells contributes to the hypercalcemia frequently seen in ATL patients.
Crosslinking Using Rapid Thermal Processing for the Fabrication of Efficient Solution‐Processed Phosphorescent Organic Light‐Emitting Diodes (2013)

Copolymers with a triscarbazole hole-transport group and an oxetane or benzocyclobutene crosslinkable group can be readily thermally crosslinked on timescales of 30 min or less, with rapid thermal processing (RTP) being highly effective for this purpose. Devices with RTP-crosslinked hole-transport layers and spin-coated emissive layers exhibit high external quantum efficiencies of up to 15%.
An Electrolytic Capacitor-less Bi-Directional EV On-Board Charger Using Harmonic Modulation Technique (2014)

This paper suggests a new electrolytic capacitor-less bi-directional on-board charger for electric vehicle. It has a cascade structure of constant frequency resonant converter for electrical isolation and DCM buck/boost converter for charging/discharging control and input harmonic regulation. Harmonic modulation technique is also proposed to obtain a high power factor and structure change method has been adopted to cope with a wide line voltage condition. Harmonic regulation and charging/discharging control can be accomplished with very simple control algorithm so that high performance controller is not required. Its feasibility has been verified with a 3-kW prototype.
THE ADDITION OF GRIGNARD REAGENTS TO THE DIBIPHENYLENEPOLYENES (1951)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTHE ADDITION OF GRIGNARD REAGENTS TO THE DIBIPHENYLENEPOLYENESREYNOLD C. FUSON, HORACE A. DeWALD, and RUSSELL GAERTNERCite this: J. Org. Chem. 1951, 16, 1, 21–32Publication Date (Print):January 1, 1951Publication History Published online1 May 2002Published inissue 1 January 1951https://pubs.acs.org/doi/10.1021/jo01141a004https://doi.org/10.1021/jo01141a004research-articleACS PublicationsRequest reuse permissionsArticle Views88Altmetric-Citations6LEARN 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
Sec31 encodes an essential component of the COPII coat required for transport vesicle budding from the endoplasmic reticulum. (1997)

The COPII vesicle coat protein promotes the formation of endoplasmic reticulum- (ER) derived transport vesicles that carry secretory proteins to the Golgi complex in Saccharomyces cerevisiae. This coat protein consists of Sar1p, the Sec23p protein complex containing Sec23p and Sec24p, and the Sec13p protein complex containing Sec13p and a novel 150-kDa protein, p150. Here, we report the cloning and characterization of the p150 gene. p150 is encoded by an essential gene. Depletion of this protein in vivo blocks the exit of secretory proteins from the ER and causes an elaboration of ER membranes, indicating that p150 is encoded by a SEC gene. Additionally, overproduction of the p150 gene product compromises the growth of two ER to Golgi sec mutants: sec16-2 and sec23-1. p150 is encoded by SEC31, a gene isolated in a genetic screen for mutations that accumulate unprocessed forms of the secretory protein alpha-factor. The sec31-1 mutation was mapped by gap repair, and sequence analysis revealed an alanine to valine change at position 1239, near the carboxyl terminus. Sec31p is a phosphoprotein and treatment of the Sec31p-containing fraction with alkaline phosphatase results in a 50-75% inhibition of transport vesicle formation activity in an ER membrane budding assay.
Multiple-pulse irradiation of dental hard tissues at CO 2 laser wavelengths (1995)

Surface temperatures were monitored using pulsed photothermal radiometry (PPTR) during multiple pulse carbon dioxide laser irradiation ((lambda) equals 9.3, 9.6, 10.3 and 10.6 micrometers ). Permanent changes in the optical properties (reflectance and absorption) were observed at fluences greater than 2 J/cm<SUP>2</SUP> for dentin and 5 J/cm<SUP>2</SUP> for enamel. The laser irradiation changes the thermal and the optical properties of these tissues, substantially changing the energy deposition for subsequent laser pulses. The temperature response of enamel and dentin and the reflectance of dentin changed considerably with successive laser pulses. After 10 to 50 pulses the surface stabilized and no further changes were noted. Scanning electron micrographs of the laser conditioned surfaces showed large crystals of modified hydroxyapatite (approximately equals 500 nm) devoid of the organic matrix. Presumably, the water and the interwoven biopolymer matrix had been carbonized nd vaporized. Caries inhibition measurements after multiple pulse irradiation of enamel indicate that the stable laser conditioned surface is more resistant to acid dissolution than untreated enamel.
About this issue [special issue on the Fast Fourier Transform (FFT)] (1967)

This special issue is an outgrowth of standardization activities in audio and electroacoustics. In 1960, Subcommittee 30.4 on Methods of Measurement of Noise of the IRE Audio and Electroacoustics Committee (Technical Committee 30) became concerned with the characterization and measurement of quantities having a short duration. The subject of this special issue, the Fast Fourier Transform (FFT), is a technique that substantially reduces the time required to perform Fourier analysis on a computer. The first paper, was prepared by members of the Concepts Subcommittee (formerly 30.4) as a general survey of the subject. The second paper, is the keynote paper presented by C. Bingham, Jr., at the Power Spectrum Workshop. Short contributions prepared by four of the workshop panelists follow the keynote paper. Each panelist was at liberty to submit his contribution as an informal discussion or as a formal paper. These short contributions are followed by "Historical Notes on the Fast Fourier Transform," by J.W. Cooley, P.A.W. Lewis, and P.D. Welch. The remainder of the special issue is given to five papers on applications of the Fast Fourier Transform. These papers discuss mathematical developments as well as experimental results obtained by use of the Fast Fourier Transform for the solution of engineering problems.
The peroxisome (2004)

The peroxisome has long been known for its role in lipid metabolism and hydrogen peroxide detoxification. However, growing evidence supports the view that this organelle can also function both as an intracellular signaling compartment and as an organizing platform that orchestrates certain developmental decisions from inside the cell. This review highlights various strategies that peroxisomes employ to regulate the processes of development, differentiation, and morphogenesis and critically evaluates several molecular mechanisms by which peroxisomes promote these processes.
Waveguide-to-fiber coupling using a second-order grating and an anamorphic binary optic (2002)

Historically, obtaining efficient coupling from single-mode waveguides in high performance GaAs modulator devices to single-mode fiber has been difficult. The reasons are; (1) the large modal mismatch between the elliptical waveguide output and the gaussian profile of the optical fiber; and (2) the large NA difference (0.9 for the waveguide in one direction) and 0.16 for fiber. Despite this difficulty, there exists a need for packaging devices with multiple fiber outputs, that have been gang-aligned, efficiently coupled, and hermetically sealed. (The latter item will be very important in automotive or aerospace applications.) Instead of trying to have fiber penetrate the package wall, the SNL approach to efficient coupling and hermeticity has been to allow light to penetrate the package wall. This has been accomplished by sending out the light normal to the waveguides and collecting it with a binary optic that focuses it on to a fiber outside the package. The optical design of this system requires that the beam be nearly collimated as it leaves the surface of the device. To accomplish this, a second-order grating was etched into a 200 /spl mu/m long section of an adiabatically expanded single-mode waveguide.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Rapid sacrificial layer etching for the fabrication of nanochannels with integrated metal electrodes (2008)

We present a rapid etch method to surface-micromachine nanochannels with integrated noble metal electrodes using a single metal sacrificial layer. The method is based on the galvanic coupling of a chromium sacrificial layer with gold electrodes, which results in a 10-fold increase in etch rate with respect to conventional single metal etching. The etch process is investigated and characterized by optical and electrochemical measurements, leading to a theoretical explanation of the observed etch rate based on mass transport. Using this explanation we derive some generic design rules for nanochannel fabrication employing sacrificial metal etching.
QRAS and SAZZ Chopper for 1EV Drive Application (2007)

In this paper, the technical stream on a high efficiency and high frequency chopper for the automotive industry, new energy and energy conservation technology field is surveyed. QRAS and SAZZ topologies aimed for the hybrid electric vehicle (HEV) drive application were proposed. 25 kHz-8 kW QRAS, 100 kHz-8 kW SAZZ choppers and 50 kHz-25 kW bilateral SAZZ-1 chopper were constructed and tested under rating conditions. It was verified that SAZZ topology retained high efficiency even at the increased operating frequency of 100 kHz. It is shown that high efficiency can be realized at high operating frequency even in high power converters by QRAS and newly proposed SAZZ soft switching topologies.
Design of wide-bandwidth envelope-tracking power amplifiers for OFDM applications (2005)

An efficiency-enhanced power-amplifier system design is presented based on wide-bandwidth envelope tracking (WBET) with application to orthogonal frequency-division multiplexing wireless local area network systems. Envelope elimination and restoration (EER) and WBET are compared in terms of the time mismatch sensitivity between the base-band amplitude path and the RF path, and it is demonstrated that WBET is much less sensitive than EER to these effects. An adaptive time-alignment algorithm for the WBET system is developed and demonstrated. The analysis and algorithm are verified by experimental results. The measurement shows that the peak drain efficiency of the complete system was 30% at a 2.4-GHz orthogonal frequency-division multiplexing output power of 20 dBm.
New Methodology for Computer-Aided Modelling of Biomolecular Structure and Dynamics 2. Local Deformations and Cycles (1989)

A new methodology for the conformational modelling of biomolecular systems (1) is extended to local deformations of chain molecules and to flexible molecular rings. It is shown that these two cases may be reduced to considering an equivalent molecular model with a regular tree-like topology. A simple procedure is developed to analyze any flexible rings (the five- and six-membered sugar rings of carbohydrates and nucleic acids, in particular) and local deformation regions by energy minimization. Dynamic equations are also derived for such molecular systems. As a result, a unified approach is proposed for the efficient energy minimization and simulation of dynamic behavior of multimolecular systems having any set of variable internal coordinates, local deformation regions and cycles. Advantages and domains of applicability of the approach are discussed.
Pulse radiolytic study of the site of hydroxyl radical attack on aliphatic alcohols in aqueous solution (1973)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPulse radiolytic study of the site of hydroxyl radical attack on aliphatic alcohols in aqueous solutionK. D. Asmus, H. Moeckel, and A. HengleinCite this: J. Phys. Chem. 1973, 77, 10, 1218–1221Publication Date (Print):May 1, 1973Publication History Published online1 May 2002Published inissue 1 May 1973https://pubs.acs.org/doi/10.1021/j100629a007https://doi.org/10.1021/j100629a007research-articleACS PublicationsRequest reuse permissionsArticle Views1225Altmetric-Citations288LEARN 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 options Get e-Alerts
Processed Tomato Products as a Source of Dietary Lycopene:<i>Bioavailability and Antioxidant Properties</i> (2004)

Oxidative stress is one of the major contributors to increased risk of chronic diseases. A diet rich in tomatoes and tomato products containing lycopene, a carotenoid antioxidant, has been found to protect against these chronic diseases by mitigating oxidative damage. The study aim was to evaluate the effects of a long-term tomato-rich diet, consisting of various processed tomato products, on bioavailability and antioxidant properties of lycopene. Seventeen healthy human subjects (ten men, seven non-pregnant women) participated in the study. Following a two-week washout period during which subjects avoided foods containing lycopene, all subjects consumed test tomato products including tomato juice, tomato sauce, tomato paste, ketchup, spaghetti sauce, and ready-to-serve tomato soup providing 30 mg of lycopene a day for four weeks. At the end of treatment, serum lycopene level increased significantly (p <0.05), from 181.79 +/- 31.25 to 684.7 +/- 113.91 nmol/L. Similarly, total antioxidant potential increased significantly (p <0.05), from 2.26 +/- 0.015 to 2.38 +/- 0.17 mmol/L Trolox equivalent. Lipid and protein oxidation was reduced significantly (p <0.05). The results suggest that a tomato-rich diet containing different sources of lycopene can increase serum lycopene levels and reduce oxidative stress effectively.
Optimization of Shooting Scheme in Order to Reduce Infill on 3D Marine Surveys (1995)

Up to 20% or more of a 3D marine survey budget is used to fill gaps in coverage, due to currents and subsequent streamer feathering. The purpose of this paper is to demonstrate, using a real 3D marine acquisition case study, how gaps in coverage can be reduced by optimizing the shooting scheme i.e. the shooting time of each individual sail line, thanks to a more accurate knowledge of the currents as compared to current practices.
PDGF and PDGF receptors in glioma (2012)

The family of platelet-derived growth factors (PDGFs) plays a number of critical roles in normal embryonic development, cellular differentiation, and response to tissue damage. Not surprisingly, as it is a multi-faceted regulatory system, numerous pathological conditions are associated with aberrant activity of the PDGFs and their receptors. As we and others have shown, human gliomas, especially glioblastoma, express all PDGF ligands and both the two cell surface receptors, PDGFR-α and -β. The cellular distribution of these proteins in tumors indicates that glial tumor cells are stimulated via PDGF/PDGFR-α autocrine and paracrine loops, while tumor vessels are stimulated via the PDGFR-β. Here we summarize the initial discoveries on the role of PDGF and PDGF receptors in gliomas and provide a brief overview of what is known in this field.
Synthesis of Ethoxyethynylarenes by the Palladium-Catalyzed Reaction of Aryl Iodides with Ethoxy(trialkylstannyl)acetylenes. (1994)

Palladium-catalyzed reaction of aryl and heteroaryl iodides with ethoxy(trialkylstannyl)acetylenes gave the ethoxyethynylarenes and -heteroarenes, which were easily transformed by hydration reaction into ethyl areneacetates and heteroareneacetates.
Predictors of Gonorrhea Reinfection in a Cohort of Sexually Transmitted Disease Patients in Alberta, Canada, 1991–2003 (2006)

The recognition of key demographic and behavioral characteristics can help focus interventions for patients at higher risk of gonorrhea reinfection.