gebhart/patrepeval huggingface dataset:
Utilization of Melaleuca quinquenervia as a Potting Medium Component for Greenhouse Production of Foliage Plants (1983)

Abstract Potting media composed of sedge peatmoss and 50% or less shredded (by volume) Melaleuca quinquenervia (Cav.) S.T. Blake bark or the entire tree composed of shredded bark, wood, seed pods, and leaves produced high quality Aglaonema and Nephrolepis in 2 separate experiments. Mixes containing melaleuca bark had high noncapillary pore space, water-holding capacity, cation-exchange capacity, and low bulk density when mixed with at least 50% sedge peatmoss. No phytotoxicity problems were observed from use of melaleuca components in artificial media.
Identification of Endogenous Peptides in Nasal Swab Transport Media used in MALDI-TOF-MS Based COVID-19 Screening (2022)

Mass spectrometry (MS) based diagnostic detection of 2019 novel coronavirus infectious disease (COVID-19) has been postulated to be a useful alternative to classical PCR based diagnostics. These MS based approaches have the potential to be both rapid and sensitive and can be done on-site without requiring a dedicated laboratory or depending on constrained supply chains (i.e., reagents and consumables). Matrix-assisted laser desorption ionization (MALDI)-time-of-flight (TOF) MS has a long and established history of microorganism detection and systemic disease assessment. Previously, we have shown that automated machine learning (ML) enhanced MALDI-TOF-MS screening of nasal swabs can be both sensitive and specific for COVID-19 detection. The underlying molecules responsible for this detection are generally unknown nor are they required for this automated ML platform to detect COVID-19. However, the identification of these molecules is important for understanding both the mechanism of detection and potentially the biology of the underlying infection. Here, we used nanoscale liquid chromatography tandem MS to identify endogenous peptides found in nasal swab saline transport media to identify peptides in the same the mass over charge (<i>m</i>/<i>z</i>) values observed by the MALDI-TOF-MS method. With our peptidomics workflow, we demonstrate that we can identify endogenous peptides and endogenous protease cut sites. Further, we show that SARS-CoV-2 viral peptides were not readily detected and are highly unlikely to be responsible for the accuracy of MALDI based SARS-CoV-2 diagnostics. Further analysis with more samples will be needed to validate our findings, but the methodology proves to be promising.
Patenting Industry Standards, 34 J. Marshall L. Rev. 897 (2001) (2001)

Air pollution caused by automobile tailpipe emissions plagues virtually every country in the world;' in the United States, perhaps no state suffers more than California.
“Liquid Knife” to Fabricate Patterning Single‐Crystalline Perovskite Microplates toward High‐Performance Laser Arrays (2016)

A facile and effective "liquid knife" is created by controlling the dewetting process of the liquid precursor, yielding patterning single-crystalline perovskite microplates with uniform size, precise positioning, high quality, and low lasing thresholds. The sizes and location of single-crystalline perovskite are controllable, leading to mode-tunable lasing emission and patterned lasers.
Intact Gram-Negative<i>Helicobacter pylori</i>,<i>Helicobacter felis</i>, and<i>Helicobacter hepaticus</i>Bacteria Activate Innate Immunity via Toll-Like Receptor 2 but Not Toll-Like Receptor 4 (2004)

Molecular and genetic studies have demonstrated that members of the Toll-like receptor (TLR) family are critical innate immune receptors. TLRs are recognition receptors for a diverse group of microbial ligands including bacteria, fungi, and viruses. This study demonstrates that distinct TLRs are responsible for the recognition of Helicobacter lipopolysaccharide (LPS) versus intact Helicobacter bacteria. We show that the cytokine-inducing activity of Helicobacter LPS was mediated by TLR4; i.e., TLR4-deficient macrophages were unresponsive to Helicobacter pylori LPS. Surprisingly, the cytokine response to whole Helicobacter bacteria (H. pylori, H. hepaticus, and H. felis) was mediated not by TLR4 but rather by TLR2. Studies of HEK293 transfectants revealed that expression of human TLR2 was sufficient to confer responsiveness to intact Helicobacter bacteria, but TLR4 transfection was not sufficient. Our studies further suggest that cag pathogenicity island genes may modulate the TLR2 agonist activity of H. pylori as cagA+ bacteria were more active on a per-cell basis compared to cagA mutant bacteria for interleukin-8 (IL-8) cytokine secretion. Consistent with the transfection studies, analysis of knockout mice demonstrated that TLR2 was required for the cytokine response to intact Helicobacter bacteria. Macrophages from both wild-type and TLR4-deficient mice produced a robust cytokine secretion response (IL-6 and MCP-1) when stimulated with intact Helicobacter bacteria. In contrast, macrophages from TLR2-deficient mice were profoundly unresponsive to intact Helicobacter stimulation, failing to secrete cytokines even at high (100:1) bacterium-to-macrophage ratios. Our studies suggest that TLR2 may be the dominant innate immune receptor for recognition of gastrointestinal Helicobacter species.
<i>Parallax</i>: High Accuracy Three-Dimensional Single Molecule Tracking Using Split Images (2009)

Three-dimensional (3D) tracking can provide valuable biological insights that are missing in conventional microscopy. Here we developed a single molecule 3D tracking microscopy technique, named Parallax, with high localization precision and temporal resolution. We demonstrated its capabilities by studying the 3D trafficking of glucose-transporter-4 containing vesicles in living adipocytes as well as the walking path of single myosin VI molecules along actin filaments.
Modeling sequential data using higher-order relational features and predictive training (2014)

Bi-linear feature learning models, like the gated autoencoder, were proposed as a way to model relationships between frames in a video. By minimizing reconstruction error of one frame, given the previous frame, these models learn "mapping units" that encode the transformations inherent in a sequence, and thereby learn to encode motion. In this work we extend bi-linear models by introducing "higher-order mapping units" that allow us to encode transformations between frames and transformations between transformations. We show that this makes it possible to encode temporal structure that is more complex and longer-range than the structure captured within standard bi-linear models. We also show that a natural way to train the model is by replacing the commonly used reconstruction objective with a prediction objective which forces the model to correctly predict the evolution of the input multiple steps into the future. Learning can be achieved by back-propagating the multi-step prediction through time. We test the model on various temporal prediction tasks, and show that higher-order mappings and predictive training both yield a significant improvement over bi-linear models in terms of prediction accuracy.
Vapor-Induced Motion of Liquid Droplets on an Inert Substrate (2017)

Evaporating droplets are known to show complex motion that has conventionally been explained by the Marangoni effect (flow induced by the gradient of surface tension). Here, we show that the droplet motion can be induced even in the absence of the Marangoni effect due to the gradient of the evaporation rate. We derive an equation for the velocity of a droplet subject to the nonuniform evaporation rate and nonuniform surface tension placed on an inert substrate, where the wettability is uniform and unchanged. The equation explains the previously observed attraction-repulsion-chasing behaviors of evaporating droplets.
Growth and survival of Atlantic salmon, Salmo salar L., fed different dietary levels of astaxanthin. First-feeding fry (1995)

Atlantic salmon fry hatched from pigment-free eggs and from eggs containing the pigment astaxanthin were fed eleven casein/gelatine-based purified diets with varying levels of astaxanthin, ranging from 0 to 317 mg kg−1, to determine the optimum dietary astaxanthin level for satisfactory growth and survival during the start-feeding period. The fish were fed the experimental diets for a period of 11 weeks. No difference in performance was found between the two types of fry originating from the pigment-free eggs and those containing pigment. However, the dietary astaxanthin concentration was found to have a significant effect on both the growth and the survival of fry. Fish fed diets with astaxanthin concentrations below 5.3 mg kg−1 were found to have marginal growth. In addition, mortality was high in the groups fed diets with astaxanthin concentrations below 1.0 mg kg−1. The specific growth rate (SGR) was also affected by the dietary treatment. The lipid content was higher and the moisture content was lower in the fish fed the diets containing astaxanthin concentrations above 5.3 mg kg−1. The vitamin A and astaxanthin concentrations in whole-body samples of the fry were significantly affected by the dietary level of astaxanthin. A plateau level in whole-body vitamin A concentration was observed at dietary levels of approximately 80 mg astaxanthin kg−1 and higher, while no maximum astaxanthin concentration in whole-body samples was observed within the dietary levels used. The results suggest the need for a minimum dietary astaxanthin concentration of 5.1 mg kg−1 to achieve maximum growth and survival during the start-feeding period. The results indicate a low bioavailability of vitamin A palmitate and acetate and the results also suggest a provitamin A function for astaxanthin during the same period.
Synthesis of some 3‐phenyl‐1‐substituted(or 1,1‐ disubstituted)prop‐2‐yn‐1‐ols and their in‐vivo activity against some phytopathogenic fungi (1982)

Abstract Thirty‐two 3‐phenyl‐1‐monosubstituted(or 1, 1‐disubstituted)prop‐2‐yn‐1‐ols, mostly with heterocyclic substituents, and four derivatives, were synthesised and tested in vivo against eight fungal plant pathogens of different taxonomic classes. No compound showed a wide spectrum of activity, however, nine of them were effective against Sphaerotheca fuliginea on Cucumis sativus , both in direct protectant tests and in systemic protectant tests by root application.
Full data-driven azimuthal inversion for anisotropy characterization (2016)

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2016Full data-driven azimuthal inversion for anisotropy characterizationAuthors: Mengmeng ZhangPeter MesdagMengmeng ZhangCGG and Peter MesdagCGGhttps://doi.org/10.1190/segam2016-13688732.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract A workflow of azimuthal inversion is presented and successfully applied on a wide-azimuth seismic dataset. This workflow is based on a novel approach to quantitatively extract anisotropy information in a horizontal transverse isotropic (HTI) medium. The method was first described by Mesdag (P. Mesdag, personal communication, 2016) and mimics anisotropic reflectivity behavior by isotropic forward modeling and anisotropy-transformed elastic properties (Mesdag, Debeye and Bornard, 2015). In this paper, a concept of an Azimuthally varying Low Frequency Model (ALFM) is also introduced and demonstrated. The ALFM provides anisotropy information below seismic bandwidth, hereby reducing side-lobes of inverted magnitude of anisotropy, thus allowing better anisotropy characterization. Presentation Date: Tuesday, October 18, 2016 Start Time: 4:35:00 PM Location: 166 Presentation Type: ORAL Keywords: low frequency, reservoir characterization, anisotropy, HTI, inversionPermalink: https://doi.org/10.1190/segam2016-13688732.1FiguresReferencesRelatedDetailsCited byEnabling isotropic reflectivity modeling and inversion in anisotropic mediaPeter Mesdag, Leonardo Quevedo, and Cătălin Tănase1 April 2021 | The Leading Edge, Vol. 40, No. 4Seismic-driven pore and fracture pressure prediction in the Permian BasinAhmed Mohamed, Kit Clemons, Vishnu Pandey, Bertrand Six, Kevin Chesser, and Vivek Swami1 August 2019Seismic anisotropy analysis using prestack azimuthal inversion for fracture prediction: A case study in KuwaitTaiwen Chen, Mohamed Hafez, Alaa Moustafa, Hanan Al-Hasan, Fatma Basha, and Marianna Evdokimova27 August 2018Quantitative inversion of azimuthal anisotropy parameters from isotropic techniquesPeter R. Mesdag and Leonardo Quevedo1 November 2017 | The Leading Edge, Vol. 36, No. 11 SEG Technical Program Expanded Abstracts 2016ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2016 Pages: 5654 publication data© 2016 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 01 Sep 2016 CITATION INFORMATION Mengmeng Zhang and Peter Mesdag, (2016), "Full data-driven azimuthal inversion for anisotropy characterization," SEG Technical Program Expanded Abstracts : 403-407. https://doi.org/10.1190/segam2016-13688732.1 Plain-Language Summary Keywordslow frequencyreservoir characterizationanisotropyHTIinversionPDF DownloadLoading ...
Calibration procedure for temperature measurements by thermoreflectance under high magnification conditions (2004)

We show that, in thermoreflectance measurements under high focusing conditions, the signal is not only due to the surface temperature variations. Indeed, the reflected light from the device under test interferes with the incoming one, making a parasitic Fabry-Pérot. Besides, the motion of the sample surface induced, for example, by Joule heating, can produce an additional signal superimposed on the thermoreflectance one. Consequently, reliable thermoreflectance measurements under high focusing conditions, and particularly their calibration, demand a control of the distance between the objective and the sample. Using a servo loop to maintain the distance between the objective and the device constant, thermoreflectance measurements have been made in transient regime on an electronic device and the thermoreflectance coefficient of gold has been deduced.
Enantioselective Synthesis of Fluorene Derivatives by Chiral Phosphoric Acid Catalyzed Tandem Double Friedel–Crafts Reaction (2009)

Squeeze out the water! Chiral phosphoric acid catalyzed tandem double Friedel–Crafts reactions between indoles and 2-formylbiphenyls were realized under mild conditions. The 9-(3-indolyl)fluorene derivatives were obtained in good yields and up to 96 % ee, leaving water as the sole by-product (see scheme).
Electricity and Magnetism (2013)

For 50 years, Edward M. Purcell's classic textbook has introduced students to the world of electricity and magnetism. The third edition has been brought up to date and is now in SI units. It features hundreds of new examples, problems, and figures, and contains discussions of real-life applications. The textbook covers all the standard introductory topics, such as electrostatics, magnetism, circuits, electromagnetic waves, and electric and magnetic fields in matter. Taking a nontraditional approach, magnetism is derived as a relativistic effect. Mathematical concepts are introduced in parallel with the physics topics at hand, making the motivations clear. Macroscopic phenomena are derived rigorously from the underlying microscopic physics. With worked examples, hundreds of illustrations, and nearly 600 end-of-chapter problems and exercises, this textbook is ideal for electricity and magnetism courses. Solutions to the exercises are available for instructors at www.cambridge.org/Purcell-Morin.
Multisampling Compressive Video Spectroscopy (2016)

Abstract The coded aperture snapshot spectral imaging (CASSI) architecture has been employed widely for capturing hyperspectral video. Despite allowing concurrent capture of hyperspectral video, spatial modulation in CASSI sacrifices image resolution significantly while reconstructing spectral projection via sparse sampling. Several multiview alternatives have been proposed to handle this low spatial resolution problem and improve measurement accuracy, for instance, by adding a translation stage for the coded aperture or changing the static coded aperture with a digital micromirror device for dynamic modulation. State‐of‐the‐art solutions enhance spatial resolution significantly but are incapable of capturing video using CASSI. In this paper, we present a novel compressive coded aperture imaging design that increases spatial resolution while capturing 4D hyperspectral video of dynamic scenes. We revise the traditional CASSI design to allow for multiple sampling of the randomness of spatial modulation in a single frame. We demonstrate that our compressive video spectroscopy approach yields enhanced spatial resolution and consistent measurements, compared with the traditional CASSI design.
Towards a Framework for Dynamic Verification of Peer-to-Peer Systems (2007)

Ensuring dependability and security of peer-to-peer (P2P) systems is an intricate task due to the autonomous and volatile nature of peers and the decentralization that characterizes such systems. Dynamic verification provides the means of monitoring aspects of peer behaviour at runtime and the capacity to react to identified violations with the aim of preserving the system in the desired state. Thus, it can provide an extra layer of checking properties like security and dependability and lead to enhanced system resilience in this respect. In this paper, we introduce a framework that supports the dynamic verification of P2P systems.
Acetaminophen Use During Pregnancy, Behavioral Problems, and Hyperkinetic Disorders (2014)

Maternal acetaminophen use during pregnancy is associated with a higher risk for HKDs and ADHD-like behaviors in children. Because the exposure and outcome are frequent, these results are of public health relevance but further investigations are needed.
Steam Generator Sludge at the Indian Point 2 Nuclear Station: Implications to Tube Corrosion (1995)

Abstract The steam generator tubes at the Indian Point 2 Nuclear Station have not exhibited severe secondary side degradation in spite of the accumulation of latge amounts of hard sludge. Several different factors involving materials, operating conditions, and secondary side chemistry, may have contributed to the absence of extensive corrosion. One of these factors, explored in the present study, is the accumulation of deposits and hard sludge around the tubes. The build-up of hard sludge appears to have been caused, at least in part, from the deposition of a ferrihydrite precursor. Both SEM/EDX measurements on the sludge and radiotracer studies indicate that the migration rates of corrosive species, such as sulfate, in the sludge are extremely low in the temperature range of interest. Accordingly, the presence of the hard sludge and the underlying tube deposits may contribute to retardation of corrosive attack on the tube surface.
Myocardial imaging agents: Synthesis, characterization and evaluation of [(Z) and (Z,E)‐(1‐[<sup>82</sup>br]bromo‐1‐penten‐5‐yl)]triphenylphosphonium cations (1990)

Abstract The phosphonium compounds, [(Z) and (Z/E)‐(1‐bromo‐1‐penten‐5‐yl)]triphenylphosphonium iodides (yield, 65–70%) and the corresponding bromine‐82‐labeled analogues have been prepared as potential myocardial imaging agents. The 2/1 isomer composition of the Z/E mixture has been confirmed by single crystal X‐ray analysis. The radiobrominated (Z)‐isomer and (Z/E)‐mixture both show high heart uptake and high heart/blood ratios in rats. These data suggest that the bromine‐75 and bromine‐76‐labeled agents could be good candidates for myocardial imaging using positron emission computed tomography.
Volume-Phase Transition in Constrained Gels (1988)

We consider a volume phase transition of gels which are allowed to swell or shirnk in only one or two directions. In gels, elastic anisotropy can strongly affect critical properties, two-phase coexistence, domain structures, etc. We predict stronly anisotropic scattering amplitudes.
Design Exploration of a Return Channel for Multistage Centrifugal Compressors (2016)

In this study, aerodynamic design improvement options are explored for a low vane count and high flow-coefficient stage return channel, which was found to produce larger than acceptable levels of residual swirl and distortion at the stage exit. A CFD-driven design exploration of three classes of return channel vanes was conducted with the goal of achieving a useful reduction in the stage exit residual swirl angle and its spanwise variance without compromising total pressure loss. First, the approach taken to anchor the CFD model with test data and resultant aerodynamic diagnosis at design point for the baseline return channel are discussed. This is followed by a cursory parametric design screening to explore concepts that can potentially meet the design goal while adhering to the spatial envelope (stage spacing) and mechanical constraints. Results of this exploration are presented and some conclusions are offered concerning the suitability of a 3D return channel guide vane partially extended into the crossover bend.
45-dB, Compact, Single-Frequency, 2-µm Amplifier (2012)

This is the first demonstration of a compact, fiber-laser pumped, single-stage, bulk Holmium amplifier providing 45-dB gain with single-frequency, CW or high-repetition-rate pulsed, seeds at 2.05 µm and diffraction-limited beam quality.
A parallel and distributed stochastic gradient descent implementation using commodity clusters (2019)

Deep Learning is an increasingly important subdomain of artificial intelligence, which benefits from training on Big Data. The size and complexity of the model combined with the size of the training dataset makes the training process very computationally and temporally expensive. Accelerating the training process of Deep Learning using cluster computers faces many challenges ranging from distributed optimizers to the large communication overhead specific to systems with off the shelf networking components. In this paper, we present a novel distributed and parallel implementation of stochastic gradient descent (SGD) on a distributed cluster of commodity computers. We use high-performance computing cluster (HPCC) systems as the underlying cluster environment for the implementation. We overview how the HPCC systems platform provides the environment for distributed and parallel Deep Learning, how it provides a facility to work with third party open source libraries such as TensorFlow, and detail our use of third-party libraries and HPCC functionality for implementation. We provide experimental results that validate our work and show that our implementation can scale with respect to both dataset size and the number of compute nodes in the cluster.
A new dielectric facet reflector for semiconductor lasers (1978)

Described in this letter is a new dielectric reflector designed for injection laser facets which consists of alternating quarter-wavelength layers of Al2O3 and Si. The reflectivity for six layers can be made ≳0.98 over a wavelength range from ∼0.7 to ≳2 μm. By choosing the appropriate number of quarter-wavelength layers and the final layer thickness the reflectivity can be varied between 0.01 and 0.98. Finally, both Si and Al2O3 are impervious to the chemical cleaning and wetting agents and solders used during the mounting of (AlGa)As cw injection lasers.