gebhart/patrepeval huggingface dataset:
Control system performance and efficiency for a mid-depth Lagrangian profiling float (2010)

This paper presents the development of a new mid-depth Lagrangian profiling float with a primary emphasis on the control system performance and efficiency. While deep water floats have demonstrated much success in open ocean environments, many are not suited for the additional challenges associated with coastal regions. To study these regions, which are often subject to varying bathymetry within the operating range and higher variations in water density, a more advanced system is required. This new design utilizes pressure and altitude feedback to drive a high volume auto-ballasting system (ABS). The main operating modes of this float include step inputs to park and drift at constant depths, profiling inputs with adjustable rates and adaptable limits, and constant altitude bottom tracking. To handle these tasks, a state-space feedback control system, which uses feedback linearization to account for the nonlinear drag force acting on the moving float, was designed and simulated. Additionally, the development of the control system was coupled with empirical motor efficiency data to study the tradeoffs between efficiency and performance.
Surface composition of grafted thermomechanical pulp through XPS measurement (2008)

The purpose of this study is to develop an analytical method to quantify the nitrogen present at the surface of paper by using X-ray photo-electronic spectroscopy (XPS). A sample of softwood thermomechanical pulp (TMP) was treated with a cationic starch containing primary amines, while another one was treated with a cationic polymer containing quaternary amines. We also grafted monomers containing a quaternary amine to the fiber. Sheets were prepared and analyzed by XPS. The technique used allowed us to identify the type of amine and to give a semi-quantitative evaluation.
Performance Analysis of OSTBC-NOMA System in the Presence of Practical Impairments (2020)

This paper investigates the performance of a power-domain downlink non-orthogonal multiple access (NOMA) system in the presence of practical impairments such as channel estimation error (CEE), feedback delay (FBD) and imperfect successive interference cancellation (SIC), where the base station communicates with multiple users by applying orthogonal space-time block coding (OSTBC) technique in order to exploit the benefits of transmit diversity. Outage probability (OP), ergodic capacity and fairness index analyses are conducted in case channels are subjected to Nakagami-m fading in order to illustrate the level of system performance, and closed-form mathematical expressions are obtained. Furthermore, to demonstrate the impact of CEE and FBD, asymptotic OP is also maintained. The analytical results validated by Monte Carlo simulations demonstrate that all performance metrics reach a non-zero fixed value in high signal-to-noise region due to the CEE and FBD while imperfect SIC worsens the performance of user with the lowest power allocation to the full outage. In addition, NOMA outperforms its counterpart orthogonal multiple access in terms of OP and ergodic capacity generally. Also, G <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> -OSTBC code has higher fairness index than G <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> -OSTBC code.
Human Kallikrein 6 Cerebrospinal Levels are Elevated in Multiple Sclerosis (2010)

The protease, human kallikrein-related peptidase 6 (hK6) is derived from activated macrophages in the central nervous system (CNS) and may contribute to pathology observed in multiple sclerosis (MS). In the present study, we compared serum and cerebrospinal fluid (CSF) protein concentrations of human kallikrein-related peptidase 6 derived from neurological controls and patients diagnosed with advanced multiple sclerotic disease. Mean serum levels of human kallikrein-related peptidase 6 were similar in neurological controls and patients diagnosed with relapsing-remitting (RR), secondary progressive (SP) and primary progressive (PP) multiple sclerosis with mean levels ranging from 3.5 to 3.75 ng/ml. Patients diagnosed with advanced multiple sclerosis showed mean CSF levels (29 ng/ml) that were significantly higher than neurological controls (25.5 ng/ml). Determining CSF concentrations of human kallikrein-related peptidase 6 may therefore have diagnostic value in MS.
Deep Learning for Beam Hopping in Multibeam Satellite Systems (2020)

Data-driven approaches, e.g., deep learning (DL),have been widely studied in terrestrial wireless communications fields, proving the benefits and potentials of such techniques. In comparison, DL for satellite networks is studied to a limited extent in the literature. In this paper, we develop a DL assisted approach to facilitate efficient beam hopping (BH) in multibeam satellite systems. BH is adopted to provide a high level of flexibility to manage irregular and time variant traffic requests in the satellite coverage area. Conventional iterative optimization approaches and typical data-driven techniques may have their respective limitations in achieving timely and satisfactory performance. We herein explore a combined learning-and-optimization approach to provide a fast, feasible, and near-optimal solution for BH scheduling. Numerical study shows that in the proposed solution, the learning component is able to largely accelerate the procedure of BH pattern selection and allocation, while the optimization component can guarantee the solution's feasibility and improve the overall performance.
Investigating the consistency of pupil-linked cognitive processes across multiple disparate tasks (2022)

The pupillary response is influenced by both cognitive processes, such as arousal and attention, and non-cognitive processes, such as luminance. To study physiological markers of cognitive processing, researchers use luminance-matched stimuli to minimize the influence of non-cognitive factors on pupil response changes. As such, extant pupillometry research may be confounded by task-structure which limits its applicability to other contexts. To investigate whether commonly defined phasic (peak amplitude, peak latency) and tonic pupil (baseline) features generalize across contexts, we leveraged a unique longitudinal pupillometry data set that involved performance of mental arithmetic (MA), visual working memory (VWM), and psychomotor vigilance (PVT) tasks. Participants (N=30) completed these tasks on 8 separate sessions over the course of 16 weeks, allowing us to address a number of questions about the task-dependence of pupil features: (1) which pupil features are consistent across tasks? and (2) which pupil features show reliable relationships to behavior (response time (RT)) within and/or across tasks? Results showed that mean baseline pupil diameter was consistent across the three tasks, whereas task-evoked phasic features (peak amplitude and latency) were not consistent (i.e., they were highly task-specific). However, despite being uncorrelated from task-to-task, phasic features showed a strong positive relationship with behavioral RT’s both within and across the three tasks. Peak latency, in particular, tracked RT very closely for all three tasks: MA: mean RT 3.18s & mean latency 5.75s; VWM: RT 0.70s & latency 3.23s; PVT: RT 0.41s & latency 2.31s. Baseline pupil diameter was also significantly associated with mean RT such that higher baseline was predictive of faster responses. These findings suggest that peak amplitude and latency, while task-specific, reflect a common pupil-linked decision process, while baseline reflects more stable pupil-linked arousal processes that also contribute to performance.
STUDY ON WAVE FORCE OF TSUNAMI ON CYLINDRICAL TANKS - EFFECT OF MULTIPLE ARRANGEMENT AND APPLICABILITY OF 3D-CFD - (2015)

近接した位置に複数配置された円筒タンクでは，タンク間の干渉影響によって様々なパターンの津波流場が形成される．したがって，複数配置の場合には，配置パターンや配置間隔に応じて円筒タンクに作用する津波波力が増減するため，種々の波力評価式が提案されている単体配置の場合に比べて，評価手法の体系化が難しい．この複数配置影響に対する評価手法の一つとしては，3次元流動解析の適用が考えられるが，円筒タンクを対象とした適用性については検証が必要である．そこで本研究では，榊山1)の水路実験との比較を行うことで，3次元流動解析の適用性を検証した．また，水路実験の結果や3次元流動解析の結果から，基本的な配置パターンにおける複数配置影響のメカニズムを把握するとともに，円筒タンクの津波波力に対する複数配置影響を明らかにした．
Quantitative Evaluation of Low Density Parity Check Convolutional Code Encoder and Decoder Algorithms for the XInC MIMD Multithreaded Microprocessor (2007)

In this paper, we introduce low density parity check convolutional code (LDPC-CC) parallel encoder and decoder algorithms for the XInC MIMD multi-threaded microprocessor. A modified memory-based decoder architecture and an interleaved LDPC-CC code scheme are also proposed. Extensions and simple modifications to the current XInC microprocessor are proposed to decrease the number of instruction cycles per decoded bit. A XInC emulator was built to evaluate and quantify the hardware utilization and performance benefits of these modifications and other alternatives.
Wellington Muchero at the 2012 DOE JGI Genomics of Energy & Environment Meeting (2012)

Wellington Muchero from Oak Ridge National Laboratory gives a talk titled "Discovery of Cell Wall Biosynthesis Genes in Populus" at the JGI 7th Annual Users Meeting: Genomics of Energy & Environment Meeting on March 22, 2012 in Walnut Creek, California.
Using origin analysis to detect merging and splitting of source code entities (2005)

Merging and splitting source code entities is a common activity during the lifespan of a software system; as developers rethink the essential structure of a system or plan for a new evolutionary direction, so must they be able to reorganize the design artifacts at various abstraction levels as seems appropriate. However, while the raw effects of such changes may be plainly evident in the new artifacts, the original context of the design changes is often lost. That is, it may be obvious which characters of which files have changed, but it may not be obvious where or why moving, renaming, merging, and/or splitting of design elements has occurred. In this paper, we discuss how we have extended origin analysis (Q. Tu et al., 2002), (M.W. Godfrey et al., 2002) to aid in the detection of merging and splitting of files and functions in procedural code; in particular, we show how reasoning about how call relationships have changed can aid a developer in locating where merges and splits have occurred, thereby helping to recover some information about the context of the design change. We also describe a case study of these techniques (as implemented in the Beagle tool) using the PostgreSQL database system as the subject.
Experimental gene interaction studies with SERT mutant mice as models for human polygenic and epistatic traits and disorders (2003)

Current evidence indicates that virtually all neuropsychiatric disorders, like many other common medical disorders, are genetically complex, with combined influences from multiple interacting genes, as well as from the environment. However, additive or epistatic gene interactions have proved quite difficult to detect and evaluate in human studies. Mouse phenotypes, including behaviors and drug responses, can provide relevant models for human disorders. Studies of gene-gene interactions in mice could thus help efforts to understand the molecular genetic bases of complex human disorders. The serotonin transporter (SERT, 5-HTT, SLC6A4) provides a relevant model for studying such interactions for several reasons: human variants in SERT have been associated with several neuropsychiatric and other medical disorders and quantitative traits; SERT blockers are effective treatments for a number of neuropsychiatric disorders; there is a good initial understanding of the phenotypic features of heterozygous and homozygous SERT knockout mice; and there is an expanding understanding of the interactions between variations in SERT expression and variations in the expression of a number of other genes of interest for neuropsychiatry and neuropharmacology. This paper provides examples of experimentally-obtained interactions between quantitative variations in SERT gene expression and variations in the expression of five other mouse genes: DAT, NET, MAOA, 5-HT(1B) and BDNF. In humans, all six of these genes possess polymorphisms that have been independently investigated as candidates for neuropsychiatric and other disorders in a total of > 500 reports. In the experimental studies in mice reviewed here, gene-gene interactions resulted in either synergistic, antagonistic (including 'rescue' or 'complementation') or more complex, quantitative alterations. These were identified in comparisons of the behavioral, physiological and neurochemical phenotypes of wildtype mice vs. mice with single allele or single gene targeted disruptions and mice with partial or complete disruptions of multiple genes. Several of the descriptive phenotypes could be best understood on the basis of intermediate, quantitative alterations such as brain serotonin differences. We discuss the ways in which these interactions could provide models for studies of gene-gene interactions in complex human neuropsychiatric and other disorders to which SERT may contribute, including developmental disorders, obesity, polysubstance abuse and others.
Decreased expression of Bax is correlated with poor prognosis in oral and oropharyngeal carcinoma (1999)

We investigated the expression of apoptosis-related factors, p53, Bax, Bcl-2, and spontaneous apoptosis in 57 cases of oral and oropharyngeal squamous cell carcinoma (SCC) by immunochemical staining and ApopTag kit. Positive expression of Bax was inversely associated with advanced tumor stage (P = 0.0225), lymph node metastasis (P = 0.0225), clinical stage (P = 0.0083) and poor prognosis (P = 0.0478). Positive expression of p53 was related to poor prognosis (P = 0.0445) and was associated with negative expression of Bax (P = 0.0439). The apoptosis index did not correlate with clinical outcome. These results suggest that abnormality of Bax expression plays an important role in tumor progression in oral and oropharyngeal SCC.
Spongian pentacyclic diterpenes. Stereoselective synthesis of aplyroseol-1, aplyroseol-2 and deacetylaplyroseol-2 (1993)

Natural spongian pentacyclic diterpenes aplyroseol-1 19, aplyroseol-2 18 and deacetylaplyroseol-2 17 have been synthesized in enantiomerically pure form from (+)-podacarp-8(14)-en-13-one 3. Key intermediate in these syntheses is a suitably substituted acid-dialdehyde 2, which is prepared from enone 3 by a sequence of transformations involving stereoselective introduction of a C-7 oxygen functionality, photoaddition of acetylene to the C(8)–C(14) double bond to form a cyclobutene ring system, reductive cyanation of the C-13 carbonyl group, hydrolysis of the resulting nitrile group, and ozonolysis of the cyclobutene moiety. An intramolecular participation of the 7α-hydroxy group in the hydrolysis of the 13α-nitrile 8 is set in focus.
NMR and theoretical conformational studies of the anticholinergic physostigmine (2001)

Abstract The NMR parameters of (−)‐physostigmine free base (1) in CD 2 Cl 2 , CDCl 3 and DMSO‐ d 6 were used to determine stereospecific assignments. The vicinal homonuclear coupling constants exhibited by the internally diastereotopic pyrrolidinyl protons of the C‐ring can be interpreted as arising from an interconverting profile of conformations at the fast exchange limit. Physostigmine undergoes epimerization in solution via inversion of the labile chirotopic and stereogenic N1 nitrogen atom, which results in the formation of ( N − R , S )‐N1Me diastereoisomers. Protonation at the N1 nitrogen leads to the ( N − S )‐N1 Me diastereoisomer of the corresponding salt of 1. Four conformational archetypes were calculated by molecular mechanics based on X‐ray crystallographically determined physostigmine. Copyright © 2001 John Wiley &amp; Sons, Ltd.
<title>Emission microtomography of plasma</title> (1992)

The iteration algorithm of three-dimensional tomography, the modified Gershberg-Papulis algorithm is developed. Its accuracy characteristics have been determined by numerical simulations. Much attention has been paid to the peculiarities of preliminary processing of the projection images from physical experiment. Algorithm is used for the reconstruction of the local emission coefficients in a micropinch discharge plasma. The analysis has revealed admissible accuracy of the algorithm, its sufficient stability to measurements noises, and the applicability in the processing of a real experiment.
Reproductive Hormones in Blood and Urine of Ovariectomized Sows2 (1974)

Four yearling sows, averaging 170 kg body weight, were ovariectomized 14 days after estrus (Day 0) to study subsequent rates of depletion of ovarian steroids in blood and their metabolites in urine for a period of 35 days. Blood and urine were collected during estrus, 7 days after estrus, before (Day 0) and after (Day 0.1) ovariectomy, daily through Day 14, and then on Days 21, 28 and 35. Urine was collected from three other sows 245 days after ovariectomy. Plasma total progestin, cortisol and corticosterone were quantified by competitive protein binding and luteinizing hormone (LH) was measured by radioimmunoassay. Urinary estrone and four urinary metabolites of progesterone (pregnanes) were quantified by gas liquid chromatography. Plasma cortisol and corticosterone were significantly (P< .025) increased only at Day 0.1 after ovariectomy. Plasma LH levels increased (P< .005) by Day 1 and remained elevated through Day 35. Plasma progestin (ng/ml) decreased from 18.7 ± 6.3 ng/ml on Day 0 to 4.8 ± 1.9 on Day 1 and to 1.8 ± 0.2 on Day 2. Thereafter, no further decreases were detectable. In contrast, urinary pregnanes decreased only 50% by Day 1 and did not decrease to estrous levels until Days 5 to 6. Average daily excretion of total urinary pregnanes was 7.6 mg/day 14 days after estrus (Day 0) compared to 2.4 mg/day at estrus and 0.48 and 0.17 mg/day 35 and 245 days after ovariectomy, respectively. At day 245, 90% of the total pregnanes was 5α-pregnan-3β-ol-20-one. Average excretion of urinary estrone on Day 245 was about 14% (3 µ/day) of the Day O rate.
Getting on dark matter's wavelength (2014)

Dark matter, the most abundant form of matter in the universe, is invisible and intangible. But that doesn't keep Leslie Rosenberg from seeing it nearly everywhere he looks. Like most physicists, he finds ample evidence of it written on the sky. It's there in the swirling of galaxies, the aftermath of cosmic collisions, and the vast, weblike scaffolding that the universe's luminous matter seems to hang upon. /spl moddot/ It's also, he hopes, near at hand. Dark matter almost certainly sweeps through Earth like water through cheesecloth. But Rosenberg, a professor at the University of Washington, in Seattle, thinks he might have just the thing to coax it out of hiding. /spl moddot/ Tucked into the concrete floor of a large warehouselike laboratory at the edge of campus, the Axion Dark Matter eXperiment (ADMX) contains the world's most sensitive radio receiver in its frequency range. Its builders are fond of boasting that if the detector were placed on Mars, it could pick up a cellphone signal sent from Earth, assuming there were no interference.
Magnesium Hydroxide Slurry as a Cost Effective Solution for Effective H<SUB>2</SUB>S Odor and Corrosion Control in Sanitary Sewer Systems (2008)

Magnesium Hydroxide Slurry as a Cost Effective Solution for Effective H2S Odor and Corrosion Control in Sanitary Sewer SystemsCorrosion in sanitary sewer systems occurs when hydrogen sulfide (H2S) is biologically converted to sulfuric acid. Although reducing metals was necessary to protect public health, pretreatment has contributed significantly to increased sulfides, leading to heightened H2S odor and ultimately to accelerated corrosion. As the main contributor to odor and corrosion in collection systems, H2S is...Author(s)Aileen GibsonSteve LeykaufChris KnappSourceProceedings of the Water Environment FederationSubjectSession 10: Odor and Corrosion Control in Collection Systems: From the Pipes to the PlantsDocument typeConference PaperPublisherWater Environment FederationPrint publication date Jan, 2008ISSN1938-6478SICI1938-6478(20080101)2008:17L.761;1-DOI10.2175/193864708790893062Volume / Issue2008 / 17Content sourceWEFTECFirst / last page(s)761 - 768Copyright2008Word count254
Molecular epidemiology of coxsackievirus B4 and disclosure of the correct VP1/2Apro cleavage site: evidence for high genomic diversity and long-term endemicity of distinct genotypes (2000)

Genetic diversity among 107 coxsackievirus B4 field isolates has been studied. These isolates included clinical and environmental isolates originating from Finland, the Netherlands and France, and also from several other countries, including the USA. Three genomic regions were used for phylogenetic analyses: the VP1/2A junction, the entire VP1 and the VP4/VP2 region. Alignment of the deduced amino acid sequence in the VP1/2A junction revealed extensive sequence variation at the previously proposed cleavage site. MS analysis of proteolytic fragments from VP1 revealed that the exact cleavage site is situated between amino acid residues Thr-849 and Gly-850. At least seven distinct genetic lineages, or genotypes, had been circulating in Europe during the period 1959-1998. Two genotypes were endemic in the Netherlands during most of the investigated period. Genetically closely related strains could be found in different countries, and different genotypes co-circulated at the same time in a given country. Clustering patterns were identical in the three genomic intervals. In the VP4/VP2 region, the intraserotypic variation approached interserotype variation. Sequence comparisons of the entire VP1 gene gave a reliable genetic identification of enterovirus serotype. It is suggested that, for genotype classification of previously serotyped coxsackievirus B4 isolates, comparison of VP1/2A sequences is sufficient, but for more detailed investigation of genetic relationships, and for 'genetic serotyping', the entire VP1 gene should be used. The VP4/VP2 region is less reliable for genetic serotyping and genotyping, although the primers are able to amplify many different serotypes.
Studies on production of maltopentaose by Bacillus cereus NY-14. Part I. Characterization of a maltopentaose-producing bacterium and its cultural conditions. (1985)

Maltopentaose-producing microorganisms were screened from a wide variety of sources. A bacterium which produced maltopentaose as the main product from a culture medium containing soluble starch was isolated from soil and identified as Bacillus cereus from its morphological, physiological, and biochemical properties. The culture conditions for the production of maltopentaose were investigated. The optimum medium consisted of 2.5 to 8% soluble starch, 1.5% peptone, and 0.25% NaCI. Under the optimum conditions of cultivation, the ratio of maltopentaose produced was in the range of 29 to 47% to the residual sugar.
3D shape measurement based on Hilbert transform (2011)

Traditional phase shifting shape measurement techniques not suitable for dynamic measurement because it need a certain number of pieces of fringe pattern. In this paper, the basic principle of the fringe projection shape measurement technique was introduced, the method of single fringe pattern phase extraction by Hilbert transform was discussed, and conducted three-dimensional shape measurement tests. Experimental results show that 3-D shape measurement can be achieved by Hilbert transform phase-shifting, and it suitable for dynamic measurement.