gebhart/patrepeval huggingface dataset:
Seismic attributes for fault/fracture characterization (2007)

Seismic attributes have proliferated in the last three decades at a rapid rate and have helped in making accurate predictions in hydrocarbon exploration and development. Attributes sensitive to amplitude such as impedance inversion and AVO are widely used for lithological and petrophysical prediction of reservoir properties. Other attributes, such as coherence and curvature are particularly useful in mapping the structure and shape of geological features of interest. While attributes are sensitive to lateral changes in geology, they are also sensitive to lateral changes in noise. For this reason the input data needs to be properly conditioned. Volumetric attributes, which use a vertical window of data in their analysis, are in general more robust than horizon‐based algorithms and make a significant difference to the quality of the results.
NYEs/SGRs‐mediated chlorophyll degradation is critical for detoxification during seed maturation in Arabidopsis (2017)

In the seed industry, chlorophyll (Chl) fluorescence is often used as a major non-invasive reporter of seed maturation and quality. Breakdown of Chl is a proactive process during the late stage of seed maturation, as well as during leaf senescence and fruit ripening. However, the biological significance of this process is still unclear. NYE1 and NYE2 are Mg-dechelatases, catalyzing the first rate-limiting step of Chl a degradation. Loss-of-function of both NYE1 and NYE2 not only results in a nearly complete retention of Chl during leaf senescence, but also produces green seeds in Arabidopsis. In this study, we showed that Chl retention in the nye1 nye2 double-mutant caused severe photo-damage to maturing seeds. Upon prolonged light exposure, green seeds of nye1 nye2 gradually bleached out and eventually lost their germination capacity. This organ-specific photosensitive phenotype is likely due to an over-accumulation of free Chl, which possesses photosensitizing properties and causes a burst of reactive oxygen species upon light exposure. As expected, a similar, albeit much milder, photosensitive phenotype was observed in the seeds of d1 d2, a green-seed mutant defective in NYE/SGR orthologous genes in soybean. Taken together, our data suggest that efficient NYEs-mediated Chl degradation is critical for detoxification during seed maturation.
RollingLight (2015)

Recent literatures have demonstrated the feasibility and applicability of light-to-camera communications. They either use this new technology to realize specific applications, e.g., localization, by sending repetitive signal patterns, or consider non-line-of-sight scenarios. We however notice that line-of-sight light-to-camera communications has a great potential because it provides a natural way to enable visual association, i.e., visually associating the received information with the transmitter's identity. Such capability benefits broader applications, such as augmented reality, advertising, and driver assistance systems. Hence, this paper designs, implements, and evaluates RollingLight, a line-of-sight light-to-camera communication system that enables a light to talk to diverse off-the-shelf rolling shutter cameras. To boost the data rate and enhance reliability, RollingLight addresses the following practical challenges. First, its demodulation algorithm allows cameras with heterogeneous sampling rates to accurately decode high-order frequency modulation in real-time. Second, it incorporates a number of designs to resolve the issues caused by inherently unsynchronized light-to-camera channels. We have built a prototype of RollingLight with USRP-N200, and also implemented a real system with Arduino Mega 2560, both tested with a range of different camera receivers. We also implement a real iOS application to examine our real-time decoding capability. The experimental results show that, even to serve commodity cameras with a large variety of frame rates, RollingLight can still deliver a throughput of 11.32 bytes per second.
Advancements in Bulk Liftetime Imaging on Silicon Bricks Using Photoluminescence Intensity Ratios (2011)

Recent progress has been made in identifying the origin of the low lifetime artefact in photoluminescence intensity ratio based bulk lifetime images. Three methodologies have been applied in order to gain a better understanding of the bulk lifetime measurement deviation in the low lifetime top and bottom regions of the brick side faces in comparison to photoconductance based techniques. Full photoluminescence spectra were measured investigating the possible contributions of defect luminescence emission, which were found to be negligible at room temperature. Further analyses revealed light spreading of the long pass-filtered luminescence image in the detection device to be the main cause of the artefact. Luminescence light originating from high lifetime areas on the brick side face scatters into low signal areas, i.e. low lifetime regions, within the CCD sensor, thus severely increasing the local low signal. Image deconvolution was applied successfully demonstrating the possibility to minimize the impact of the light spreading on the final bulk lifetime image. The employment of a camera with InGaAs detector, which strongly absorbs over the entire silicon luminescence spectrum and employing a different set of filters using the same photoluminescence intensity ratio methodology was able to show an excellent qualitative and quantitative agreement with deconvoluted bulk lifetime images detected with a Si CCD array.
L’extraordinaire potentiel de l’approche métagénomique en microbiologie des aliments: analyse du microbiote de fromages au lait cru et pasteurisé (2012)

Parmi les techniques culture indépendante, le développement de l’ultra-séquençage a permis de positionner l’analyse métagénomique comme étant la meilleure alternative pour l’étude de microbiotes complexes. Durant ces trois dernières années, les études métagénomiques ont été consacrées essentiellement à l’analyse d’échantillons environnementaux. Ce travail décrit l’application de cette technique à l’étude des populations bactériennes de quatre types de fromages à pâte molle. Parmi ceux-ci, trois d’entre eux sont des fromages belges typiques à croute lavée (deux sont fabriqués avec du lait cru et le troisième avec du lait pasteurisé). Le quatrième est un fromage français crémeux à base de lait cru. Des analyses microbiologiques classiques et métagénomiques ciblant l’ADNr 16S ont été réalisées dans le cœur et sur la croute des quatre fromages, donnant un total de 8 échantillons. Au total, 48 genres et 163 espèces bactériennes ont été identifiées pour tous les échantillons. Comme attendu, Lactoccocus lactis subsp lactis et/ou cremoris sont les espèces les plus représentées dans le cœur des quatre fromages. Concernant la croute des fromages, les espèces bactériennes les plus abondantes sont Psychrobacter glacinola, Staphylococcus equorum, Corynebacterium casei et Marinilactibacillus psychrotolerans. A noter la présence de Brevibacterium spp et Psychroflexus spp qui permettent d’obtenir la couleur orangée de la croute. Toutes ces espèces sont présentes en différentes proportions suivant l’origine et le processus de fabrication et sont connues pour leurs propriétés technologiques et/ou organoleptiques. Les deux fromages belges au lait cru sont composés de beaucoup d’espèces bactériennes différentes. Tandis que le fromage au lait pasteurisé contient moins d’espèces, principalement Lactococcus lactis (97,6%) dans le cœur. Un résultat inattendu concerne la faible diversité bactérienne du fromage français crémeux à base de lait cru. Seulement deux espèces étaient majoritairement présentes : Lactoccocus lactis subsp cremoris et Leuconostoc citreum avec respectivement 94,9% et 4,9% dans le cœur et 93,8% et 5% dans la croute). Comparé avec les résultats des autres fromages à base de lait cru, ce résultat est particulièrement surprenant. Le microbiote des fromages joue un rôle central sur le processus de fabrication, les qualités organoleptiques et la durée de vie commerciale des produits. L’analyse métagénomique est devenu un outil puissant, rapide et abordable pour identifier, comprendre et maitriser les flores impliquées
Additive Manufactured 3:1 Bandwidth Dual-Polarized Range Antenna (2020)

A family of 3:1 Dual-Polarized Antennas has been developed for use in near-field ranges as the probe or range antenna and for use as a Compact Antenna Test Range (CATR) feed [1]. Key development parameters of the antenna are: a wideband impedance match to the coaxial feed line, E and H-plane 1 dB beam widths in excess of 30 degrees, −25 dB on axis cross-polarization, minimum polarization tilt and a phase center that varies over a small region near the aperture. To accomplish these design parameters, a family of range antennas has been developed and previously introduced [1]. Two versions of the antenna have been manufactured and tested for performance. A 2–6 GHz version has been developed using traditional machining techniques and a 6–18 GHz version has been produced using additive manufacturing (3D printing) techniques. In this paper, we focus on the performance of the 6–18 GHz antenna produced using additive manufacturing. The measured performance of the antenna will be presented and compared to previous simulation. The advantages of additive manufacturing for this type antenna will be discussed. Finally, the applicability of the antenna as a CATR feed and its use in near-field scanning will be discussed.
Ultrafast linear optical sampling technique for optical communication systems (2015)

We describe our recent progress on a linear optical sampling technique. Thanks to broad bandwidth and direct complex amplitude accessibility, the technique enables WDM signal demultiplexing by digital signal processing and laser phase noise characterization.
Encoding biological recognition in a bicomponent cell-membrane mimic (2019)

Significance The seminal fluid mosaic model of the cell membranes suggests a lipid bilayer sea, in which cholesterol, proteins, glycoconjugates, and other components are swimming. Complementing this view, a microsegregated rafts model predicts clusters of components that function as relay stations for intracellular signaling and trafficking. However, elucidating the arrangement of glycoconjugates responsible for communication and recognition between cells, and cells with proteins remains a challenge. Herein, designed dendritic macromolecules are shown to self-assemble into vesicles that function as biological-membrane mimics with controlled density of sugar moieties on their periphery. Surprisingly, lowering sugar density elicits higher bioactivity to sugar-binding proteins. This finding informs a design principle for active complex soft matter with potential for applications in cellular biology and nanomedicine.
Batch crystallization of KCl: effect of stirrer type, mixing and cooling rate on crystal size distribution and crystal habit (2005)

The influence of the type of stirrer (turbine and propeller), stirrer speed and the cooling rate on crystallization kinetics of KCl, crystal size distribution and obtained crystal habit, has been investigated on a laboratory scale. At low mixing rates, crystals are not agitated uniformly, so they are exposed to different hydrodynamics conditions. Consequently, wider range of crystal size distribution is obtained. Well mixing of all present crystals (high mixing rates) results with production of bigger crystals with more regular shape and narrower range of crystal sizes. The cooling rate influences strongly the crystallization kinetics. At higher cooling rates crystallization starts earlier, for all investigated stirrer speeds. Consequently, nucleation starts at lower temperature and less stable shapes and smaller crystals are produced. Population density of crystal nuclei and overall linear growth rate are evaluated according to procedure suggested by Stone and Randolph. With regard to the influence of the cooling rate and mixing intensity on the supersaturation, conditions that expands the metastable zone, (fastest cooling rate and lower agitation) results with higher supersaturation and higher linear growth rate. The influence of cooling rate is more intense than the influence of mixing rate. Population density of crystal nuclei is increased for higher intensity of agitation. Different process conditions results with different crystal shapes. Rapid cooling of a solution at low mixing rates causes the preferential growth of a crystal in one particular direction, leading to the formation of needles. For a given intensity of mixing slower controlled rate of cooling results in the production of crystals of regular size (cubic). Quite different results are obtained when crystallization is carried out without mixing. If solution is cooled rapidly large number of needle shape crystal is produced. For slow, natural (at room temperature) cooling large crystals are obtained.
An algebraic method for moving source localization using TDOA, FDOA, and differential Doppler rate measurements with receiver location errors (2019)

To weaken the effect of receiver location error on localization accuracy and make the localization model closer to the practical scenario, this paper considers the receiver location errors, usually neglected in prior studies into the measurement model, and proposes an algebraic method for locating a moving source using time difference of arrival (TDOA), frequency difference of arrival (FDOA), and differential Doppler rate measurements. The proposed method is based on the pseudo-linear set of equations and two-step weighted least square estimator. Only noise values of receiver locations and three types of positioning measurements are available for processing. In addition, a new Cramér-Rao lower bound (CRLB) combining TDOA, FDOA, and differential Doppler rate in the presence of receiver location errors is also derived in this paper. Theoretical analysis and simulation results both indicate that the proposed method can attain CRLB at a moderate noise level, avoid the rank deficiency problem efficiently, and achieve a significant improvement over the existing methods.
Predicting Adherence and Persistence with Oral Bisphosphonate Therapy in an Integrated Health Care Delivery System (2017)

This study was supported by grants from the Kaiser Permanente Northern California Community Benefit Program and the National Institutes of Health, 1R01AG047230-01A1. The opinions expressed in this publication are solely the responsibility of the authors and do not represent the official views of Kaiser Permanente or the National Institutes of Health. Hui, Yi, and Chandra have received past research funding from Amgen not related to the current study. Adams has received research funding from Amgen, Merck, and Otsuka not related to the current study. Niu has received research funding from Bristol-Myers Squibb not related to the current study. Ettinger has received past legal fees in litigation involving Fosamax. Lo has received past research funding from Amgen and current research funding from Sanofi not related to the current study. The data from this study were presented at the Academy of Managed Care Pharmacy Annual Meeting; April 19-22, 2016; San Francisco, California. Study concept and design were contributed primarily by Hui and Lo, along with Adams, Niu, Yi, and Ettinger. Hui took the lead in data collection, along with Chandra, and data interpretation was performed by Niu, Yi, and Lo, along with the other authors. The manuscript was written by Hui, Adams, and Lo, along with Niu, Yi, and Ettinger, and revised by Ettinger, Hui, Lo, and Niu, along with the other authors.
Effect of bulky groups in ruthenium heteroleptic sensitizers on dye sensitized solar cell performance (2012)

Two novel heteroleptic ruthenium sensitizers, TT204 and TT205, containing bulky substituents at the 4,4-positions of the ancillary 2,2-bipyridine ligand, were synthesized and characterized. They exhibit absorption maxima in the visible region at 520–530 nm due to metal-to-ligand charge transfer (MLCT) transitions. The EHOMO and ELUMO values indicate sufficient driving force for efficient dye regeneration by the iodide/tri-iodide redox electrolyte and efficient electron injection into the TiO2 conduction band following photoexcitation, respectively. The performance of these heteroleptic sensitizers in dye sensitized solar cells was investigated where TiO2 sensitization was carried out both in the presence and absence of chenodeoxycholic acid. The best efficiency among these sensitizers was recorded in the presence of chenodeoxycholic acid which generated a high short circuit current of 18.7 mA cm−2, an open circuit potential of 0.72 V and a fill factor of 73% with a resulting total power conversion efficiency of 9.81% under AM 1.5G 1 sun illumination. Comparison with the reference dye C101 indicates that though bulky groups can prevent aggregation resulting in high photocurrents even in the absence of chenodeoxycholic acid, they can also lead to lower cell voltages due to inefficient dye packing on the TiO2 surface.
Boldness moderates cognitive performance under acute threat: Evidence from a task-switching paradigm involving cueing for shock. (2022)

Understanding factors that influence behavioral performance in high-pressure contexts is relevant to critical occupations such as first responders, military personnel, and frontline medical workers. A recent study by Yancey et al. (2019) demonstrated an association between boldness, a biobehavioral trait reflecting social dominance and fearlessness, and enhanced task-switching performance during threat of shock relative to a no-shock (safe) condition. This study used a sustained threat manipulation in which cues signaling possible shock were present throughout blocks of multiple task trials. Here, we extended this work by evaluating the relationship between boldness and task-switching performance under acute threat of shock conditions, in which cues signaling possible shock occurred during individual task trials, intermingled with safe trials. Participants (<i>N</i> = 79) completed a task-switching procedure involving acute threat of shock in which unwarned noise probes were presented to elicit blink-startle responses. Boldness was associated with better switching performance under threat versus safe conditions, with high-bold participants who exhibited low startle potentiation during threat showing the best performance. These findings provide additional evidence that dispositional boldness is a meaningful individual difference characteristic related to effective performance in high-pressure situations and have implications for personnel selection and assignment. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
Packet Switching in Radio Channels: Part III--Polling and (Dynamic) Split-Channel Reservation Multiple Access (1976)

Here we continue the analytic study of packet switching in radio channels which we reported upon m our two previous papers [1], [2] Again we consider a population of terminals communicating with a central station over a packet-switched radio channel. The allocation of bandwidth among the contending terminals can be fixed [e.g., time-division multiple access (TDMA) or frequency-division multiple access (FDMA)], random [e.g., ALOHA or carrier sense multiple access (CSMA)] or centrally controlled (e.g., polling or reservation). In this paper we show that with a large population of bursty users, (as expected) random access is superior to both fixed assignment and polling. We also introduce and analyze a dynamic reservation technique which we call split-channel reservation multiple access (SRMA) which is interesting in that it is both simple and efficient over a large range of system parameters.
Clinical Significance of YY1 Overexpression in Human Hematopoietic Malignancies (2010)

Patients with multiple myeloma (MM) develop resistance to conventional therapies. The underlying molecular mechanism responsible for resistance is not clear. We have reported in solid tumors that transcription factor Yin Yang 1 (YY1) is overexpressed and regulates tumor cell resistance to apoptotic stimuli induced by chemo- and immunotherapeutic drugs. Therefore, we hypothesized that MM may overexpress YY1 and that its overexpression may be a poor prognostic factor. This hypothesis was tested by using both MM cell lines and MM derived from patients' bone marrow samples. MM cell lines showed overexpression of YY1 by immunohistochemistry (IHC). Bone marrow samples from patients with MM showed overexpression of YY1 by IHC as compared with low levels of YY1 in normal bone marrow samples. The intensity and frequency of cells expressing YY1 in both the cytoplasm and nucleus was significantly higher among patients with progressive disease compared with patients with stable and responsive disease. These findings demonstrate that the expression of YY1 in MM may correlate with prognosis. Furthermore, the findings suggest YY1 as a therapeutic target for intervention in the reversal of resistance and prevention of disease progression in patients with MM.
Surgical Duration Estimation via Data Mining and Predictive Modeling: A Case Study. (2015)

Operating rooms (ORs) are one of the most expensive and profitable resources within a hospital system. OR managers strive to utilize these resources in the best possible manner. Traditionally, surgery durations are estimated using a moving average adjusted by the scheduler (adjusted system prediction or ASP). Other methods based on distributions, regression and data mining have also been proposed. To overcome difficulties with numerous procedure types and lack of sufficient sample size, and avoid distributional assumptions, the main objective is to develop a hybrid method of duration prediction and demonstrate using a case study.
Sensitivity of feedback channel delay on transmit adaptive array (2003)

The investigation into the effect of various feedback errors on system performance can help the robust feedback channel design and transmission of exact feedback channel information as well. We address the algorithm that determines space combining weight vector maximizing received signal power at the mobile on a frequency flat fading channel and investigate the performance degradation by the feedback channel delay in the FDD/CDMA systems employing transmit beamforming. We observe the effect of feedback channel delay corresponding to the number of transmit antennas and the temporal/spatial correlation of channel. The results show that performance is more sensitive to feedback delay with the larger number of antennas when fading at the transmit antennas are not spatially correlated.