gebhart/patrepeval huggingface dataset:
COMPACT, HIGH PERFORMANCE, DRONE-MOUNTED SPECTRAL IMAGING SYSTEM FOR ECOSYSTEM CARBON-CYCLE CHARACTERIZATION AND AGRICULTURAL MONITORING (2019)

A lightweight, high-resolution spectral imager was developed for aerial surveys of vegetative traits using small drones. The sensor has the potential to rapidly map vegetative type, health, and function over large areas, and revisit the same area to measure seasonal changes in vegetative mass, water uptake, and other traits. It will be invaluable for the growing field of precision agriculture and for ecosystem research. The key benefit, compared to other existing hyperspectral sensors, is the extended spectral range, from the visible into the short-wave infrared, which enables measurement of vegetative features that cannot be accurately measured with existing visible sensors. In Phase II, we developed a small, low-weight, hyperspectral imaging system for UASs based on a high-performance solid-core spectrograph and robust processing algorithms that produce calibrated vegetation trait products. The key innovation was the design and fabrication of solid-block spectrometer machined from a transparent crystal that has an extended spectral range from the visible to the short-wave-infrared (0.38-2.45 microns). It is coupled with a wide-field of view telescope and extended-range camera to produce hyperspectral image (2D images in 400 different colors) with extremely high spatial and spectral resolution. The spectrograph is packaged with ancillary electronics, GPS, and inertial navigation, into a small, 5-pound package that attaches to a standard multicopter drone. SSI is teamed with DOE researchers to develop the science behind measuring vegetative traits from the air, concentrating on how spectral traits correlate from the leaf scale to the landscape scale. In Phase II we have demonstrated the flight package and mapping techniques using a surrogate spectrometer with a smaller spectral range. In a follow-on Phase IIA program, we will be flying the extended-range sensor in coordinated field tests to correlate the landscape-scale hyperspectral measurements with ground measurements. The new extended-range sensor will be integrated into a commercial product line aimed at the precision agriculture and mineral exploration industries. It represents a breakthrough in size, weight, and performance that will enable routine application in the growing, but cost-sensitive field of precision agriculture. It will also be sold for ecological research. Large-scale production of the sensor will enable systematic, ecosystem-scale surveys of plant type, plant-health, carbon-uptake, and vegetative mass.
The role of vitamin E in the pathogenesis of arteriosclerosis (1993)

Antioxidative Vitamine (E, C und Beta-Carotin) scheinen eine bedeutende Rolle im Initiierungsprozeß der Atherosklerose zu spielen. Man nimmt an, und dies wird durch jüngste experimentelle Ergebnisse belegt, daß die Oxidation der low density lipoproteins (LDL) ein bedeutender und primärer Schritt in der Kaskade der Ereignisse ist, die zur Atherosklerose und letztlich zur koronaren Herzkrankheit (KHK) führen. Die oxidative Modifizierung der LDL wird durch die Peroxidation der in den LDL transportierten mehrfach ungesättigten Fettsäuren bewirkt. Diese Modifizierung verändert die Bindungsdomäne des LDL zum LDLRezeptor. Die Folge ist eine geringere Aufnahme durch den LDL-Rezeptor der peripheren Gewebe und der Leber und eine vermehrte Aufnahme durch den Scavenger-Rezeptor der Makrophagen, die dadurch zu Schaumzellen transformieren. Selbst gering modifiziertes LDL kann den atherogenen Prozeß auslösen, indem es zur verstärkten Bildung eines Proteins (MCP-1) führt, welches die Chemotaxis der Monozyten und ihre Transformation zu Makrophagen in der Gefäßwand fördert. In epidemiologischen und experimentellen Studien konnte gezeigt werden, daß diese antioxidativen Vitamine die LDL-Partikel vor der oxidativen Modifizierung schützen. Folglich sollte die Steigerung der Aufnahme dieser Vitamine besonders in Risikogruppen für KHK einen präventiven Effekt haben. Epidemiologische Studien der jüngsten Vergangenheit haben eindrucksvoll gezeigt, daß ein Anstieg der antioxidativen Vitamine im Blut mit einer Senkung der KHK-Mortalität korreliert.
Structure-activity relationships of illudins: analogs with improved therapeutic index. (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure-activity relationships of illudins: analogs with improved therapeutic index.Trevor C. McMorris, Michael J. Kelner, Wen Wang, Leita A. Estes, Mark A. Montoya, and Raymond TaetleCite this: J. Org. Chem. 1992, 57, 25, 6876–6883Publication Date (Print):December 1, 1992Publication History Published online1 May 2002Published inissue 1 December 1992https://pubs.acs.org/doi/10.1021/jo00051a037https://doi.org/10.1021/jo00051a037research-articleACS PublicationsRequest reuse permissionsArticle Views630Altmetric-Citations77LEARN 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-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
A preliminary study on Ru/TiO2 as heterogeneous catalyst for the depolymerization of empty fruit bunch-derived organosolv lignin (2018)

Empty fruit bunches (EFB) contain approximately 32.5% of lignin, which is potentially utilized as a source of energy and fine chemicals. In this study, lignin was isolated from EFB by organosolv method, and then analyzed and characterized. The result of compositional analysis showed the isolated lignin purity was 98.8%. The obtained lignin was then depolymerized in liquid phase at various reaction temperatures over a ruthenium metal catalyst supported on TiO2. The optimum temperature of the depolymerization reaction was obtained at a temperature of 280 °C with a total concentration of aromatic monomers was 4.2 mM.
Erythroleukemia cells: variants inducible for hemoglobin synthesis without commitment to terminal cell division. (1983)

Murine erythroleukemia cells (MELC) are virus-transformed erythroid precursors that appear to be blocked at an erythroid precursor stage comparable to the erythroid colony-forming unit (CFU-e). These cells are useful in examining factors regulating terminal differentiation. Induced MELC are characterized by a coordinated program of gene expression, including commitment to terminal cell division, accumulation of globin mRNAs and corresponding hemoglobins, and accumulation of several other proteins, including the chromatin-associated protein H1(0). Two cloned variant cell lines, DR10 and R1, have been developed from inducer-sensitive DS19 cells by selection for inducer resistance. DR10 and R1 cells fail to display commitment to terminal cell division when cultured with dimethyl sulfoxide (Me2SO), hexamethylene bisacetamide (HMBA), or butyric acid. Both cell lines are induced by all three agents to accumulate H1(0). DR10 cells are resistant to Me2SO-mediated accumulation of hemoglobin but are sensitive to HMBA- or butyric acid-mediated accumulation. R1 cells are resistant to Me2SO- and HMBA-mediated accumulation of hemoglobin but are sensitive to butyric acid-mediated accumulation. Both DR10 and R1 are commitment-negative MELC variants, displaying variable responses to inducers with respect to other features of terminal erythroid cell differentiation.
Supplementary Tables S1-3 from Bioactivity and Safety of IL13Rα2-Redirected Chimeric Antigen Receptor CD8<sup>+</sup> T Cells in Patients with Recurrent Glioblastoma (2023)

&lt;p&gt;Supplementary Tables S1-3. Table S1. T cell Product Release Criteria. Table S2. Manufacturing Feasibility. Table S3. Characteristics of Patients Who Received Study Treatment.&lt;/p&gt;
Density Functional Study of Metallacumulene Complexes (2000)

Density functional calculations have been carried out on the series of metallacumulene complexes [(CO)5Cr(C)nH2)] (n = 2−9) to study the electronic structure and the bonding of the CnH2 cumulene carbene moieties to d6 transition metal fragments. Optimized geometries have been calculated for all complexes and found in good agreement with the available X-ray experimental data. The electronic structure has been analyzed in terms of the synergistic σ donation π back-donation model, and the contribution from π back-donation was found to be slightly higher than that from σ donation. Dissociation energies have been calculated for the metal−cumulene bond and have been found essentially independent of chain length. The perturbational theory of reactivity has been employed to explain the reactivity patterns of this class of complexes.
Determination of the Bending Characteristic Parameters of the Bending Evaluation System of Fabric and Yarn (2006)

The bending evaluation system of fabric and yarn (BES-FY) can measure the bending, weight, friction and tensile properties of fabric and yarn through a pull-out test and delineate the relationship between the mechanical geometry and the corresponding deforming process, so as to quantify the comprehensive hand of fabric and yarn. The bending process of the BES-FY system was mainly investigated in the present study. Two bending models were developed under different conditions and the corresponding formulae for bending rigidity were also obtained. The optimum point and range for calculating the bending rigidity was acquired by experimental and analytical investigation, which involved study of the relationships between bending rigidity—curvature. These can be divided into three sections, namely, linear, quadratic and constant function, and through the comparisons between the bending rigidity of the two bending models and that of KES-FB2 and FAST-2, the better bending model was selected to characterize the bending properties of fabric and yarn.
A Cortical vs. Subcortical Distinction of Dementia Contrasts with the Unifying Pathoetiology of Alzheimer's and Parkinson's Disease (1987)

Click to increase image sizeClick to decrease image sizeKey Words: Alzheimer's diseaseParkinson's diseasedementia
Efficient Routing in Intermittently Connected Mobile Networks: The Single-Copy Case (2008)

Intermittently connected mobile networks are wireless networks where most of the time there does not exist a complete path from the source to the destination. There are many real networks that follow this model, for example, wildlife tracking sensor networks, military networks, vehicular ad hoc networks (VANETs), etc. In this context, conventional routing schemes would fail, because they try to establish complete end-to-end paths, before any data is sent. To deal with such networks researchers have suggested to use flooding-based routing schemes. While flooding-based schemes have a high probability of delivery, they waste a lot of energy and suffer from severe contention which can significantly degrade their performance. With this in mind, we look into a number of ldquosingle-copyrdquo routing schemes that use only one copy per message, and hence significantly reduce the resource requirements of flooding-based algorithms. We perform a detailed exploration of the single-copy routing space in order to identify efficient single-copy solutions that (i) can be employed when low resource usage is critical, and (ii) can help improve the design of general routing schemes that use multiple copies. We also propose a theoretical framework that we use to analyze the performance of all single-copy schemes presented, and to derive upper and lower bounds on the delay of any scheme.
Real-Time Local Adaptive Video Processing In Diagnostic Imaging (1985)

Diagnostic imaging has expanded rapidly in recent years as an effective tool in medicine. This growth has been supported by technological advances in sophisticated image acquisition and processing techniques. In particular, image processing may improve diagnostic performance by enhancing the information content or the ease of information extraction from a given image acquisition configuration, or may allow for lower required illuminating dosages and/or the use of smaller amounts of contrast media to obtain a given level of information. One class of enhancement operators transforms image data in a manner dependent on the statistical composition of local data neighborhoods. These operators generally have the effect of manipulating the effective image contrast in a local-area adaptive manner to enhance certain features while suppressing unwanted large scale shading. Such techniques have traditionally been performed off-line by computing or image processing hardware/software on single image frames, requiring many millions of arithmetic operations, with speeds heavily dependent on the size of local areas used and the degree of complexity of the algorithm applied. We describe here a system which enables complex image processing operations to be performed at video frame rates by a relatively inexpensive, very compact (e.g. 3 1/2 in. rack mount) piece of equipment which can be simply inserted in the video stream of an already existing image acquisition facility. This system utilizes a sampled data approach in a modular design which allows for such image enhancement techniques as the contrast enhancement schemes mentioned above, and also includes provision for storage (or temporal averaging) and subtraction of reference data masks. While this system can be applied to real-time adjustable enhancement of static images, it has particular application to fluoroscopy, angiography, endoscopy, etc., or in general to any modality which employs real-time (30 Hz) video display of image data.
Dynamics Experiment on influence of slider arrangement of scotch yoke mechanism (2018)

The slider crank mechanism is used for conversion between linear motion and rotational motion, but the side force is problem to occur between cylinder sides and piston head. Theoretically, Scotch yoke mechanism can be mentioned as the side force does not occur. In this mechanism, slider guides are arranged in the vertical and horizontal directions, respectively. Also, in order to increase the rigidity of the mechanism, a structure is adopted in which two slider guides are arranged in the same linear movement direction. However, as there are many components and high assembling accuracy is required, it is rarely used in general. We thought that high assembly precision is required due to over constrain by using two sliders in the same linear movement direction. Therefore, in order to solve the above problem, the authors try to reduce each direction of slider guides of the scotch yoke mechanism. By reducing the number of slider guides in the dynamics experiment, the effect of changing the combination of slider guides is investigated using a water pump. Evaluation is done by comparing the input torque required to drive the mechanism and the load on the slider guide.
Multilayered organic electroluminescent device using a novel starburst molecule, 4,4′,4″-tris(3-methylphenylphenylamino)triphenylamine, as a hole transport material (1994)

A novel π-conjugated starburst molecule, 4,4′,4″-tris(3-methylphenylphenylamino)triphenylamine (m-MTDATA), which forms a stable amorphous glass, functions as an excellent hole transport material for organic electroluminescent devices. An electroluminescent device consisting of double hole transport layers of m-MTDATA and 4,4′-bis(3-methylphenylphenylamino)biphenyl and an emitting layer of tris(8-quinolinolato)aluminum exhibits a high luminance efficiency and significant durability.
MP79-09 PROSPECTIVE EVALUATION OF 68GA-PSMA POSITRON EMISSION TOMOGRAPHY/COMPUTERIZED TOMOGRAPHY FOR PREOPERATIVE LYMPH NODE STAGING IN PROSTATE CANCER (2016)

INTRODUCTION AND OBJECTIVES: Conventional imaging techniques are inadequate for lymph node staging in prostate cancer (PC). To assess the accuracy of 68Ga-PSMA positron emission tomography/computerized tomography (PET/CT) for lymph node (LN) staging in intermediate and high-risk PC. Secondly, to validate the automated standardized maximum uptake value (SUV max) for the detection of PC using 68Ga-PSMA PET/CT. METHODS: From March to October 2015, 30 patients with intermediate (n3) or high-risk (n27) PC were prospectively enrolled. Patients underwent preoperative 68Ga-PSMA PET/CT. Both visual and semi quantitative analysis was undertaken. Subsequently, all patients underwent a radical prostatectomy with an extended pelvic lymph node dissection (eLND). Sensitivity, specificity, positive and negative predictive value (PPV and NPV) for LN status of 68Ga-PSMA were calculated using histopathology as reference.
Bilateral control using functional electrical stimulation (2015)

This paper describes bilateral control using functional electrical stimulation (FES). Bilateral control is a teleoperation system using force feedback. If we can use it in everyday life, it could allow remote diagnosis by doctors and communication of tactile information. However, in conventional studies of bilateral control, operators must wear robot arms. Using them in everyday life is not desirable, because they are restrained and make human feel uncomfortable. Therefor, we propose the use of FES in the transmission of force information. An experiment on bilateral control of elbow joints with five healthy male participants was conducted. Biceps brachii muscles and triceps brachii muscles were stimulated using adhesive electrical pads. Position symmetrical bilateral control was implemented so that the deviation of the position of each other is 0. The angles of the elbows were measured by encoders, and a proportional-integral-derivative (PID) controller was implemented as a position controller. The experimental results show that the proposed method showed good performance in the practical viewpoint. However, the elbows of some subjects could not be successfully controlled because interference current occurred between their muscles.
Gray-scale data pages for digital holographic data storage (1998)

The prospects for gray-scale (or multilevel) digital holographic data storage are theoretically and experimentally investigated. A simple signal-to-noise ratio (SNR) partitioning argument shows that when SNR scales as 1 over the number of holograms squared, five gray levels (log(2) 5 bits/pixel) would be expected to result in a 15% capacity increase over binary data pages. However, the additional signal-dependent noise sources present in practical systems create a baseline SNR that reduces both the optimal number of gray levels and the resulting gain in capacity. To implement gray-scale recording experimentally, we adapt the predistortion technique previously developed for binary page-oriented memories [Opt. Lett. 23, 289 (1998)]. Several new block-based modulation codes for decoding gray-scale data pages are introduced. User capacity is evaluated by an experimental technique using LiNbO(3) :Fe in the 90 degrees geometry. Experimental results show that a balanced modulation code with three gray levels provides a 30% increase in capacity (as well as a 30% increase in readout rate) over local binary thresholding.
Ka ARM Zenith Radar (a0) (2012)

The Ka-band ARM Zenith Radar (KAZR) remotely probes the extent and composition of clouds at millimeter wavelengths. The KAZR is a zenith-pointing Doppler radar that operates at a frequency of approximately 35 GHz. The main purpose of this radar is to determine the first three Doppler moments (reflectivity, vertical velocity, and spectral width) at a range resolution of approximately 30 meters from near-ground to nearly 20 kilometers in altitude. The KAZR replaces the millimeter-wavelength cloud radar (MMCR) and uses a new digital receiver that provides higher spatial and temporal resolution than the MMCR. In addition, spectral artifacts in the data are significantly reduced in the KAZR, allowing researchers to study cloud dynamics much more closely than with the MMCR. KAZR data from the 2018–2019 Cloud, Aerosol, and Complex Terrain Interactions (CACTI) field campaign in Argentina are now available as b1-level products. Building on the original CACTI operational data, the b1-level products feature improved data quality resulting from extensive analyses and corrections. The data are cross-calibrated to a common point, datastreams are corrected for operational issues that occurred during the campaign, and several data quality masks and basic derived products are incorporated. For more information, read the CACTI radar b1-level processing report.
The performance of polarization diversity antennas at 1800 MHz (2002)

Cellular radio systems have been in operation since the early 1970s and are experiencing tremendous growth. However, a major problem for cellular systems is the multipath, or short-term fading. One way to combat multipath fading on the uplink is to implement a diversity scheme at the base station. Until recently this was done by using two separate antennas positioned some distance apart from each other. The disadvantage with this method, however, is that the antennas have to be separated by several wavelengths to receive "independently fading" signals. Thus the antenna systems become large. With polarization diversity two antennas are also used but there is no need for any physical separation between them. Instead the two antennas are polarized in two orthogonal polarizations, e.g., horizontal/vertical or /spl plusmn/45 degrees slanted. In a study by Lotse et al. (see IEEE VTS 46th Vehicular Technology Conference Proceedings, vol.3, p.1643-46, 1996) it was found that space diversity yields typically about 1 dB better "diversity gain" than polarization diversity. However, how different antenna parameters affect the results has to our knowledge never been studied. The authors aim to fill this void.