gebhart/patrepeval huggingface dataset:
Spatial Estimation of Crop Evapotranspiration, Soil Properties, and Infiltrated Water for Scheduling Cotton Surface Irrigations (2010)

Estimates of spatially distributed crop evapotranspiration (ETc) over large fields could be particularly valuable for aiding irrigation management decisions in arid regions where surface irrigation systems are predominant. The objectives are to evaluate an irrigation scheduling approach that combines remote sensing inputs with field data to provide fine-scale, spatial monitoring of crop water use and soil water status within surface-irrigated fields. Remote sensing observations of vegetation index were used to spatially estimate basal crop coefficients within 4-m x 8-m zones within borders of a 4.9-ha cotton field. These data were used to compute ETc within zones using FAO-56 procedures. Spatial inputs of soil properties were estimated from a ground-based apparent soil electrical conductivity survey. Spatial distribution of infiltrated water along the furrow was estimated using hydraulic field measurements and irrigation simulation software. An existing daily time-step, soil water balance computer program was modified to incorporate the spatial information and provide simultaneous monitoring of crop and soil conditions in zones. Irrigation scheduling using the spatial monitoring approach compared favorably in yield to traditional cotton irrigation scheduling used in the area, but reduced water use by 7 to 9%, whereas it attained as much as 19% higher yield compared to scheduling based on assuming a uniform crop coefficient for all zones. Managing water for large surface-irrigated fields aided by decision support tools and approaches that allow spatial monitoring of crop water use and soil conditions could improve precision and timing of irrigation water scheduling.
ChemInform Abstract: Asymmetric Synthesis of Pipecolic Acid Derivatives. (1992)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
A trial of metoclopramide vs sumatriptan for the emergency department treatment of migraines (2005)

When compared at 2 and 24 hours, aggressive (20 mg dosed up to four times) IV metoclopramide and 6 mg of subcutaneous sumatriptan relieved migraine headache pain comparably. Some secondary endpoints suggest that metoclopramide may be the preferable therapy for migraines presenting to the emergency department.
Crystal Growth and Optical Property of GaN Nanowire Cores and GaInN/GaN Multi-Quantum Shells Grown by Metalorganic Vapor Phase Epitaxy (2019)

An n-GaN nanowire and a GaInN/GaN multi-quantum shell (MQS) were uniformly grown by the continuous flow mode MOVPE with the optimal growth condition. Although the extended defect-free crystal was successfully grown, the MQS may contain point defects acting as the nonradiative recombination centers. The AlGaN underlying shell was found to be effective point defect trap to improve the optical property of the MQS.
Improving Performance of Inkjet Printing Systems by Means of Low-cost Mechatronics (2005)

Our research aims at increasing the performance of inkjet printers, while minimizing the cost price. The focus of the research is on mastering the 6 DOF’s of all printheads in a multiple printhead, wide format, inkjet printer. Low-cost mechatronics will be applied to deal with cost and quality issues when the productivity is increased. Every printer company most likely carries out research on productivity, however not much has been published on this for confidentiality reasons. In [1], a description of a productivity model is presented. It deals with design parameters regarding heat management in contrast with our research which will primarily deal with mechanical design parameters.
Effect of impregnation and in‐situ polymerization of methacrylates on hardness of sugar maple wood (2005)

Abstract The improvement of Brinell hardness of sugar maple ( Acer saccharum Marsh.) samples through impregnation and in‐situ polymerization of methyl methacrylate, 2‐hydroxylethyl methacrylate, and ethylene glycol dimethacrylate monomers was investigated. The formulation combinations were determined by a mixture design. Sugar maple samples were impregnated with these mixtures by a vacuum and pressure process and polymerized in situ by a catalyst‐thermal procedure. The effects of the monomers and their combinations on Brinell hardness and hardness modulus were analyzed. Chemical impregnation enhanced both Brinell hardness and hardness modulus. A significant relationship between hardness modulus and Brinell hardness was found. Modulus of elasticity of sugar maple was also improved through impregnation with methacrylates. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 99: 1674–1683, 2006
Development of an On-line Measuring Apparatus of Particle Size Distribution and Concentration with a Three-stage Classifier. (1995)

It is very important to measure both the concentration and size distribution of particles in flue gas by an on-line method. In particular, it is required to measure the particle size distribution of pulverized coal to control combustion conditions of pulverized coal and the performance of a coal pulverizer.In this research, an on-line measuring apparatus of both particle size distribution and concentration has been developed. This apparatus consists of three-stage classifiers and load cells to weigh the classified particles. The particle size distribution is calculated from cut sizes of the classifiers and weight fractions of the classified particles. The overall particle concentration is decided from the total weight of the collected particles and the total volume of induced gas. The particle size distributions calculated from this method are in fairly good agreement with the one measured by a conventional light diffraction method.
Design of antennas for the Europe an data relay satellite (2003)

The study of a data relay satellite which will be used for linking low-earth-orbiting (LEO) satellites with fixed earth terminals is presented. The authors describe the antenna subsystems presently based on large scannable reflector antennas for the interorbit links at S- (2 GHz) and Ka-bands (23/26 GHz) and on a fixed reconfigurable antenna for the feeder link with the earth stations located in Europe. Feasibility studies have been conducted in order to accommodate the antenna on different European spacecraft within the Ariane IV launcher constraints. A novel scanning technique is described which makes it possible to steer the reflector for up to 40 HPBWs with a loss of about 1 dB.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Element reduction in phased arrays using dual-mode self-scanning elements (1992)

A method for reducing the number of elements in phased arrays that uses dual-mode array elements such as horns or microstrip patches is introduced. It is shown that the excitation of the second mode can be used to locate preferentially a null on the element radiation pattern. In particular, when the null is moved to the array grating lobe location, it causes its cancellation and permits selection of large interelement spacings. The number of array elements can therefore be reduced. The method is then applied to both triangular and rectangular lattice structures having uniform or tapered excitation. It is found that the method can reduce the number of elements by as much as 26% for the triangular lattice and by 45% for the rectangular lattice.
Kinetic Calibration Using Dominant Pre-equilibrium Desorption for On-Site and in Vivo Sampling by Solid-Phase Microextraction (2007)

A new kinetic calibration was developed using dominant pre-equilibrium desorption by solid-phase microextracton. The calibration was based on isotropism between absorption and desorption, which was proved theoretically and experimentally in an aqueous solution and semisolid matrix. This approach allows for the calibration of absorption using desorption to compensate for matrix effects. Moreover, concentration profiles are initially proposed to verify isotropism between the absorption and desorption, while providing a linear approach to obtain time constants for the purpose of quantitative analysis. This linear approach is more convenient, robust, and accurate than the nonlinear version with the previously used time profiles. Furthermore, the target analytes are used as the internal standards; thus, radioactive or deuterated internal standards are not necessary. In addition, dominant pre-equilibrium desorption utilizes the pre-equilibrium approach and offers a shorter sample preparation time, which is typically suitable for in vivo sampling. This kinetic calibration method was successfully applied to prepare samples of polycyclic aromatic hydrocarbons in a flow-through system and in vivo pesticide sampling in a jade plant (Crassula ovata).
A new modality for the treatment of benign prostatic hyperplasia (1992)

The potential application of coagulative heating as a new modality for transurethral treatment of prostate hyperplasia is examined theoretically and experimentally. A theoretical model is developed for predicting the tissue response and the extent of thermal injury under different heating modalities such as conductive heating and direct heating using electromagnetic radiation. The theoretical model suggests that laser heating of the prostate is superior to other modalities in producing large coagulated zones of injury. The preliminary animal study using Nd:YAG laser radiation to coagulate canine prostate supports our hypothesis. The animal study results shows that deep coagulation necrosis of the prostate can be achieved by optimizing the exposure parameters.
The DECNIS 500/600 multiprotocol bridge/router and gateway (1993)

The DECNIS 500/600 high-performance multiprotocol bridge/router and gateway are described. The issues affecting the design of routers with this class of performance are outlined, along with a description of the architecture and implementation. The system described uses a distributed forwarding algorithm and a distributed buffer management algorithm executed on plug-in linecards to achieve scalable performance. An overview of the currently available linecards is provided, along with performance results achieved during system test. The DEC Network Integration Server 500 and 600 (DECNIS 500/600) products are general-purpose communications servers integrating multiprotocol routing, bridging, and gateway functions over an evolving set of local and wide area interfaces. The product family is designed to be flexible, offering a wide range of performance and functionality. The basic system consists of a Futurebus+ based backplane, a management processor card (MPC), and a packet random-access...
Evolutionary Story of the Low/Medium-Affinity IgG Fc Receptor Gene Cluster (2019)

Low/intermediate affinity Fc-gamma receptors (FcγR) are crucial for the recognition of immune complexes and IgG-sensitized microorganisms by phagocytic and cytotoxic effector cells. In all mammalian species studied so far, their genes are clustered in a single locus. However, this locus differs between humans and mice, both in the number of genes and the structure/function of the encoded receptors. We show that murine fcgr3 evolved through several steps into FCGR2A, its orthologue, which is specific to primates. One of these steps was the insertion of a retroviral element bringing a new intracellular exon comprising a non-canonical ITAM motif. We also show that the fcgr3-hspa6-fcgr4-fcgr2b module in mammals that has evolved in a FCGR2A-HSPA6-FCGR4-FCGR2B module in primates, was subsequently duplicated in apes through a Non-Allelic Homologous Recombination (NAHR), giving birth to FCGR2C, a hybrid gene between FCGR2B and FCGR2A. The FCGR4 duplication, which occurred simultaneously, eventually resulted in the emergence of FCGR3B, while FCGR3A remained the true FCGR4 orthologue. FCGR2C and FCGR3B, markers of this NAHR, are present in gorillas and chimpanzees, whereas they are absent in orangutans and more distant primates, such as gibbons and macaques. These data need to be taken into account when testing IgG-based therapies in animal species.
Src-mediated coupling of focal adhesion kinase to integrin <b>α</b>v<b>β</b>5 in vascular endothelial growth factor signaling (2002)

Vascular endothelial growth factor (VEGF) promotes vascular permeability (VP) and neovascularization, and is required for development. We find that VEGF-stimulated Src activity in chick embryo blood vessels induces the coupling of focal adhesion kinase (FAK) to integrin alpha(v)beta5, a critical event in VEGF-mediated signaling and biological responsiveness. In contrast, FAK is constitutively associated with beta1 and beta3 integrins in the presence or absence of growth factors. In cultured endothelial cells, VEGF, but not basic fibroblast growth factor, promotes the Src-mediated phosphorylation of FAK on tyrosine 861, which contributes to the formation of a FAK/alpha(v)beta5 signaling complex. Moreover, formation of this FAK/alpha(v)beta5 complex is significantly reduced in pp60c-src-deficient mice. Supporting these results, mice deficient in either pp60c-src or integrin beta5, but not integrin beta3, have a reduced VP response to VEGF. This FAK/alpha(v)beta5 complex was also detected in epidermal growth factor-stimulated epithelial cells, suggesting a function for this complex outside the endothelium. Our findings indicate that Src can coordinate specific growth factor and extracellular matrix inputs by recruiting integrin alpha(v)beta5 into a FAK-containing signaling complex during growth factor-mediated biological responses.
Incorporating a Modified Graeb Score to the Modified Fisher Scale for Improved Risk Prediction of Delayed Cerebral Ischemia Following Aneurysmal Subarachnoid Hemorrhage (2017)

The mFS and the mGS have similar prognostic utility. Accounting for IVH volume improved prediction of DCI by the mFS.
Molecular cloning of the human DNA excision repair gene ERCC-6. (1990)

The UV-sensitive, nucleotide excision repair-deficient Chinese hamster mutant cell line UV61 was used to identify and clone a correcting human gene, ERCC-6. UV61, belonging to rodent complementation group 6, is only moderately UV sensitive in comparison with mutant lines in groups 1 to 5. It harbors a deficiency in the repair of UV-induced cyclobutane pyrimidine dimers but permits apparently normal repair of (6-4) photoproducts. Genomic (HeLa) DNA transfections of UV61 resulted, with a very low efficiency, in six primary and four secondary UV-resistant transformants having regained wild-type UV survival. Southern blot analysis revealed that five primary and only one secondary transformant retained human sequences. The latter line was used to clone the entire 115-kb human insert. Coinheritance analysis demonstrated that five of the other transformants harbored a 100-kb segment of the cloned human insert. Since it is extremely unlikely that six transformants all retain the same stretch of human DNA by coincidence, we conclude that the ERCC-6 gene resides within this region and probably covers most of it. The large size of the gene explains the extremely low transfection frequency and makes the gene one of the largest cloned by genomic DNA transfection. Four transformants did not retain the correcting ERCC-6 gene and presumably have reverted to the UV-resistant phenotype. One of these appeared to have amplified an endogenous, mutated CHO ERCC-6 allele, indicating that the UV61 mutation is leaky and can be overcome by gene amplification.
Multi-layer Resilience in Deutsche Telekom¿s IP Core and Aggregation Network (2014)

This paper considers cost savings that can be achieved by a multi-layer (ML) dimensioning and interworking within a practical packet-optical backbone network. They are based on several multi-layer resilience (MLR) schemes. This includes optical restoration against optical failures (MLR-O) and spare backup interfaces, provisioned against port failures (MLR-P). The design steps comprise an ML router bypass optimization (MLBO) of 100Gbit/s wavelengths through an agile photonic layer equipped with colorless-directionless ROADM. In order to minimize costs, dedicated L1/L2 (ODU or Ethernet) switching devices will not be deployed. We apply this methodology to DT?s IP backbone, showing about 25-30% fewer interfaces are required. The total cost saving potential is estimated by using today?s average market prices, proving the superiority of the approach. Finally, we extend MLR to the aggregation network with its typically ring-like topologies.
Detection of Explosives using nanofibrous membranes (2008)

We report an inexpensive and simple approach for the fabrication of high surface area sensing elements using electrospinning. The nanofibrous membranes formed could be used as chemiresistors as well as fluorescence quenching sensors depending on the receptor used. For chemiresistor type sensors, conducting polymer (CP) nanotubes have been fabricated by combining electrospinning and vapor deposition polymerization. UV-Visible spectroscopy and X-ray photoelectron spectroscopy (XPS) confirm the formation of CP on the fiber. For an optical response, fluorescent dyes have been incorporated on the surface of the nanofibers. The quenching of fluorescence typically follows a Stern-Volmer type bimolecular quenching relationship. The morphological characterization was carried out using scanning electron microscopy (SEM). The response of these sensors to an explosive stimulant will be discussed.
Improved circular polarizer for far-infrared lightpipe systems (1995)

We present an improved design for far-infrared (FIR) circular polarizers used in a lightpipe transmission system for magneto-optical experiments. A peak efficiency of nearly 100% is achieved for FIR laser radiation by reducing the multiple reflections within the polarizer system, as well as scattering from the walls of the lightpipe. Broadband low-resolution measurements are less susceptible to errors due to multiple reflections, but incorporation of these improvements is still found to reduce systematic errors due to the reflection from the sample. Also, we have measured the low temperature index of refraction of quartz and find significant disagreement with published values for frequencies below 100 cm−1.
ON THE CHANGE OF TEMPERATURE CONSEQUENT ON ANY CHANGE IN THE DENSITY OF ELASTIC FLUIDS, CONSIDERED ESPECIALLY WITH REFERENCE TO STEAM. (1836)

Keywords TEMPERATURE, DENSITY, ELASTIC, FLUIDS, STEAM, HEAT, COLD, EXPANSION, CONTRACTION, MEASUREMENT, EXPANSIVE, CHANGE... Show All
Asymptotic behavior of the Eckhoff method for convergence acceleration of trigonometric interpolation (2010)

Convergence acceleration of the classical trigonometric interpolation by the Eckhoff method is considered, where the exact values of the “jumps” are approximated by solution of a system of linear equations. The accuracy of the “jump” approximation is explored and the corresponding asymptotic error of interpolation is derived. Numerical results validate theoretical estimates.
Phenylimino Indolinone: A Green‐Light‐Responsive T‐Type Photoswitch Exhibiting Negative Photochromism (2021)

Abstract Imines are photoaddressable motifs useful in the development of new generations of molecular switches, but their operation with low‐energy photons and control over isomer stability remain challenging. Based on a computational design, we developed phenylimino indolinone (PIO), a green‐light‐addressable T‐type photoswitch showing negative photochromism. The isomerization behavior of this photoactuator of the iminothioindoxyl (ITI) class was studied using time‐resolved spectroscopies on time scales from femtoseconds to the steady state and by quantum‐chemical analyses. The understanding of the isomerization properties and substituent effects governing these photoswitches opens new avenues for the development of novel T‐type visible‐light‐addressable photoactuators based on C=N bonds.
9a-Hydro-9a-methyl-9-anthracenone - a molecule with fused blocked aromatic rings (1983)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT9a-Hydro-9a-methyl-9-anthracenone - a molecule with fused blocked aromatic ringsBernard Miller and Ajit K. BhattacharyaCite this: J. Am. Chem. Soc. 1983, 105, 10, 3234–3242Publication Date (Print):May 1, 1983Publication History Published online1 May 2002Published inissue 1 May 1983https://pubs.acs.org/doi/10.1021/ja00348a045https://doi.org/10.1021/ja00348a045research-articleACS PublicationsRequest reuse permissionsArticle Views238Altmetric-Citations3LEARN 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
Recombinant Vesicular Stomatitis Virus Vector Mediates Postexposure Protection against Sudan Ebola Hemorrhagic Fever in Nonhuman Primates (2008)

Recombinant vesicular stomatitis virus (VSV) vectors expressing homologous filoviral glycoproteins can completely protect rhesus monkeys against Marburg virus when administered after exposure and can partially protect macaques after challenge with Zaire ebolavirus. Here, we administered a VSV vector expressing the Sudan ebolavirus (SEBOV) glycoprotein to four rhesus macaques shortly after exposure to SEBOV. All four animals survived SEBOV challenge, while a control animal that received a nonspecific vector developed fulminant SEBOV hemorrhagic fever and succumbed. This is the first demonstration of complete postexposure protection against an Ebola virus in nonhuman primates and provides further evidence that postexposure vaccination may have utility in treating exposures to filoviruses.
Imaging characteristics of scintimammography using parallel-hole and pinhole collimators (1998)

The purpose of the study is to investigate the imaging characteristics of scintimammography (SM) using parallel-hole (PR) and pinhole (PN) collimators in a clinical setting. Experimental data were acquired from a phantom that models the breast with small lesions using a low energy high resolution (LEHR) PR and a PN collimator. At close distances, the PN collimator provides better spatial resolution and higher detection efficiency than the PR collimator, at the expense of a smaller field-of-view (FOV). Detection of small breast lesions can be further enhanced by noise smoothing, field uniformity correction, scatter subtraction and resolution recovery filtering. Monte Carlo (MC) simulation data were generated from the 3D MCAT phantom that realistically models the Tc-99m sestamibi uptake and attenuation distributions in an average female patient. For both PR and PN collimation, the scatter to primary ratio (S/P) decreases from the base of the breast to the nipple and is higher in the left than right breast due to scatter of photons from the heart. Results from the study add to understanding of the imaging characteristics of SM using PR and PN collimators and assist in the design of data acquisition and image processing methods to enhance the detection of breast lesions using SM.