gebhart/patrepeval huggingface dataset:
EFFECTS OF SPATIO-TEMPORAL ALIASING ON OUT-THE-WINDOW VISUAL SYSTEMS (2008)

Barbara T. Sweet, Ph.D. Aerospace Engineer & Leland S. Stone, Ph.D. Research Psychologist NASA Ames Research Center Dorion B. Liston, Ph.D. Research Associate San Jose State University Tim M. Hebert, Ph.D. Software Engineer VDC Display Systems Abstract Designers of out-the-window visual systems face a challenge when attempting to simulate the outside world as viewed from a cockpit. Many methodologies have been developed and adopted to aid in the depiction of particular scene features, or levels of static image detail. However, because aircraft move, it is necessary to also consider the quality of the motion in the simulated visual scene. When motion is introduced in the simulated visual scene, perceptual artifacts can become apparent. A particular artifact related to image motion, spatio-temporal aliasing, will be addressed. The causes of spatio-temporal aliasing will be discussed, and current knowledge regarding the impact of these artifacts on both motion perception and simulator task performance will be reviewed. Methods of reducing the impact of this artifact are also addressed.
Adaptive Information Extraction and Sublanguage Analysis (2001)

Introduction 1 Information extraction (IE) has made significant progress in the last decade. We have developed practical, efficient approaches to IE which have yielded modest levels of performance on general texts and quite good performance on restricted, `semi-structured&apos; texts. More notably, over the last few years there has been a blossoming of work in adaptive IE --- the topic of this and other recent workshops --- IE systems which can be rapidly and automatically (or semi-automatically) moved to new extraction tasks. To date, these developments have been relatively little influenced by linguistic studies of the texts. In fact, the trend has been towards less linguistic analysis. Some early IE systems used full parsing and in a few cases relatively deep semantic analysis. Because of limitations of full parsing methods (particularly a decade ago) this gave way to a common methodology based on limited parsing and simple pattern matching. Adaptive IE systems have in
Range management for quality wildlife. (1979)

This material was digitized as part of a cooperative project between the Society for Range Management, the National Agricultural Library, and the University of Arizona Libraries.
Synthesis and release of polyribophosphate by Haemophilus influenzae type b in vitro (1976)

Polyribophosphate, the capsular polysaccharide antigen of Haemophilus influenzae type b, can be assayed in crude bacterial extracts by a combination of immunoprecipitation, hot-acid extraction, and colorimetry. In vitro, the antigen is synthesized during growth and, in well-buffered media, in early stationary phase as well. It is shed from the cell throughout the course of synthesis, and at 37 C almost all the extractable antigen has been released spontaneously within several hours after synthesis. Various strains are similar in extent of synthesis and gross composition of the antigen; however, strains differ in the rate of release during exponential phase. The antigen is released as (or as part of) a very large structure, although under certain culture conditions much smaller antigenic units are found.
Algorithms for efficient structure-based grouping in XML-OLAP (2008)

This paper discusses algorithms that efficiently compute structural grouping over XML data, which is a core operation in the interactive analysis of XML data, called "XML-OLAP". XML-OLAP allows interactive analysis over XML data to discover important information, and aggregation computation according to XML's tree hierarchy or TOPOLOGICAL ROLLUP, which plays a key role in XML structure-based grouping. We propose several variations of algorithms for efficient TOPOLOGICAL ROLLUP computation. Initially, these are basic algorithms: Top-Down and Bottom-Up, which are based on well-known Structural Join algorithms. We then propose a modified Bottom-Up algorithm to improve applicability, and the Single-Scan algorithms that make use of dedicated data structures. We finally perform comparative experimental analysis over the proposed algorithms, and demonstrate efficiency.
Recoverable shear measurements in a parallel plate rheometerz (1970)

Abstract A parallel plate rheometer has been devised which permits measurements of shear stresses of 10 2 to 10 5 dynes/sq.cm. and shear rates of 10 −5 to 1 sec. −1 . A linear, air lubricated bearing is used to align the apparatus, and a linear variable differential transformer is used to sense changes in position. With a sample of polyisobutylene and with several samples of poly(dimethyl siloxane), it has been established that a Hookean range exists for each sample at low stresses. Hooke's law in shear states that the modulus is independent of stress, where the modulus is defined as the ratio of the shear stress in steady, creeping flow to the strain which can be recovered after the stress is removed. Other conclusions supported by the present work are that the Hookean range does not extend to stresses which are high enough to cause non‐Newtonian flow, that the modulus decreases with increasing molecular weight although not in direct proportion, and that a sample with a broad molecular weight distribution has a lower modulus than one with a narrow distribution.
B-Lymphocyte Depletion in Myalgic Encephalopathy/ Chronic Fatigue Syndrome. An Open-Label Phase II Study with Rituximab Maintenance Treatment (2015)

ClinicalTrials.gov NCT01156909.
Involvement of Rab28 in NF-κB Nuclear Transport in Endothelial Cells (2013)

Our previous proteomic analysis revealed the expression of Rab28 in arteries of rats. However, the function of Rab28 in mammalian cells, and its role in vessels are still unknown. Coarctation of abdominal aorta above left kidney artery in rat was used as hypertensive animal model. FX-4000 cyclic strain loading system was used to mimic the mechanical condition on vascular cells during hypertension in vitro. Immunofluorescence and co-immunoprecipitation (Co-IP) were used to identify distribution and interaction of Rab28 and nuclear factor kappa B (NF-κB). Rab28 expression was significantly increased in carotid arteries of hypertensive rats. High cyclic strain induced Rab28 expression of endothelial cells (ECs) through a paracrine control of vascular smooth muscles cells (VSMCs), which at least partly via angiotensin II (Ang II). Rab28 knockdown decreased proliferation of ECs, while increased apoptosis and migration. Immunofluorescence revealed that Ang II stimulated the co-translocation of Rab28 and NF-κB from cytoplasm into nucleus. Knockdown of Rab28 attenuated NF-κB activation. Co-IP of NF-κB p65 and Rab28 indicated their interaction. Our results revealed that Rab28, as a novel regulator of NF-κB nuclear transport, might participate in the disturbance of EC homeostasis.
Cell size adaptation in W-CDMA cellular system (2003)

In this paper, we make an analysis by computer simulation for the purpose of an improvement of capacity in W-CDMA with cell size adaptation. A situation in which there is some deviation in the user distribution in the center cell, and the relation between cell size and capacity is evaluated. Although the distribution of users is varied only in the center cell, capacity including surrounding cells is so evaluated. By adapting cell-size, the result shows that capacity can be improved about 1.26 times users especially in a center-focused distribution. Also in the edge-focused distribution, capacity, about 1.11 times users, is improved. In addition, it is connected with the increase in the capacity by adapting the cell-size even in the other user distribution. The capacity is increased by the effect of soft handoff. Capacity increases as the threshold of soft handover becomes large. Capacity decreases over 6dB, because interference increases. It is shown that the reverse link capacity is converged when the threshold is about 6dB.
Corruption, Structural Reforms, and Economic Performance in the Transition Economies (2000)

The views expressed in this Working Paper are those of the autllOr(s) and do not necessarily represent those of the IMP Of IMP policy.Working Papers describe research in progress bv the author( s) and are published to elicit comments and to further debate.Recent stndies have highlighted the adverse impact of corruption on economic performance.This paper advances the hypothesis that corruption is largely a symptom of underlying weaknesses in public policies and institntions, a formulation that provides deeper insights into economic performance than do measures of "perceived corruption."The hypothesis is tested by assessing the relative importance of structural reforms vs. corruption in explaining macroeconomic performance in the transition economies.The paper finds that for four widely used measures of economic performance-growth, inflation, the fiscal balance, and foreign direct investment-structural reforms tend to dominate the corruption variable.
Chemokine involvement in tetracycline-induced pleuritis (1999)

Sclerosants such as tetracycline (TCN) have often been used in the control of malignant pleural effusions. Although the resultant inflammatory response is probably important in the ensuing pleural fibrosis, the signals responsible for the cellular influx into the pleural space following TCN instillation are not well understood. This study, therefore, sought to determine whether the chemokines interleukin-8 (IL-8), growth-related protein (Gro), and monocyte chemotactic protein-1 (MCP-1) were locally elaborated within the first 72 h following intrapleural TCN administration. TCN induced an exudative effusion with high lactate dehydrogenase activity. Although there was no significant change in the pleural fluid total leukocyte content, the median polymorphonuclear neutrophil concentration decreased from 1.067x10(6) to 2.03x10(5) cells x mL(-1) between 24 and 72 h, whereas the median macrophage concentration increased from 1.44x10(5) to 5.98x10(5) cells x mL(-1) over the same period. Furthermore, IL-8, Gro and MCP-1 concentrations decreased between 24 and 72 h. Immunocytochemistry indicated expression of IL-8 by pleural mesothelial cells 24 h, but not 72 h, following TCN administration. The data suggest that local elaboration of interleukin-8 and growth-related protein, in part of mesothelial origin, may influence neutrophil recruitment in tetracycline-induced pleuritis.
Studies on the Index Compounds for HPLC Analysis of Glycyrrhiza uralensis (1997)

HPLC of the AcOEt extracts of subterranean (roots or stolons)samples of Glycyrrhiza uralensis showed two types of the reproducible chromatograms distinct from those of other species ( G. glabra, G. pallidiflora, G. echinam, G. macedonica ).As index compounds for HPLC of G.uralensis, two new compounds, named glyurallins A and B, were isolated and their structures were defined, in addition to identification of nine compounds to glycycoumarin, semilicoisoflavone B, dehydroglyasperin C, licoisoflavanone, glycyrol, glycyrin, gancaonin N, licoricidine and 8y , ydimethylallylwighteone.Licorice, dried roots and stolons of Glycyrrhiza uralensis, G. glabra and some other species are an important source of traditional Chinese medicines, materials for glycyrrhizin preparation, and food and tobacco ingredients.lWe report in this paper that two new compounds, named glyurallins A and B were obtained along with nine known compounds from the AcOEt extracts of subterranean samples of G. uralensis and those of commercially available samples of Glycyrrhizae Radix.These 11 compounds were found
The development and application of the hybrid centrifugal- dissolved air flotation system for wastewater treatment (2008)

Solid/liquid separations are integral part of any wastewater treatment system. Particles heavier than water are commonly separated in sedimentation clarifiers. On the other hand, particles with densities lower than that of water are most often separated with flotation systems. This manuscript describes the development of hybrid centrifugal dissolved air flotation system. The system was developed by combining high-energy centrifugal mixing of a liquid – liquid cyclone with pressurized dissolved air as a source of flotation bubbles. It is the only dissolved air flotation system in which 100% of the influent is aerated. Nucleation of bubbles occurs at the same time with nucleation of flocs inside the hydrocyclone columns. Solid/liquid separation occurs inside the columns under the influence of centrifugal forces. Tanks are only used for sludge skimming. Such design results in smaller footprint, sludge with higher solids content, lower coagulants and flocculants consumption and faster response times. These advantages are particularly important when using flotation as a pretreatment for membranes or bioreactors, since any overdose of chemicals can foul membranes or interfere with microorganisms metabolism. Classical hydrocyclone heads were also replaced with controlled mixing energy designed heads. Centrifugal forces with controlled mixing energy allow for application of high performance viscous flocculants and coagulants. Centrifugal vortex mixing is very efficient at activation of flocculant molecules and growth of large flocs without breaking either polymer chains or flocs.
Real-time video streaming with multi-camera for a telepresence wheelchair (2016)

This paper presents a new approach for telepresence wheelchairs equipped with multiple cameras. The aim of this system is to provide effective assistance for the elderly and people with disabilities. The work explores the integration of the Internet of Things, such as multimedia, wireless Internet communication, and automation control techniques into a powered wheelchair system. In particular, multiple videos are streamed in real-time from an array of cameras mounted on the wheelchair, allowing wide visualization surrounding the wheelchair. By using video communication and interaction, remote users can assist to navigate a wheelchair via the Internet through wireless connections in a distant location. The experimental results show that video streaming can achieve high-quality video with the streaming rate up to 30 frames per second (fps) in real-time. The average round-trip time is under 27 milliseconds (ms). The results confirmed the effectiveness of the proposed system for tele-monitoring and remote control to achieve safer navigation tasks for wheelchair users.
Inhibition of CD40 signaling limits evolution of established atherosclerosis in mice (2000)

Interruption of inflammatory pathways may provide a novel approach to the therapy of atherosclerosis. Recently, we and others have implicated the immune mediator dyad CD40/CD40L (CD40 ligand), which is expressed on endothelial and smooth muscle cells, macrophages, and T lymphocytes within human atherosclerotic lesions, in aspects of atherogenesis and the acute coronary syndromes, including regulation of matrix metalloproteinases, procoagulant activity, cytokines, etc. In vivo, interruption of CD40 signaling reduced the initiation and early phases of atheroma formation in hypercholesterolemic mice. However, whether interruption of CD40 signaling can retard the progression or even regress established lesions remains unknown. We report here that anti-CD40L antibody treatment of randomly assigned low-density lipoprotein receptor-deficient mice during the second half of a 26-week regimen of high-cholesterol diet did not regress, but did significantly reduce further evolution of established atherosclerotic lesions within the aortic arch and particularly the thoracic and abdominal aorta, as compared with control treatment (application of rat-IgG or saline; 13 weeks, continued high-cholesterol diet). In addition to limiting lesion progression, anti-CD40L treatment changed the composition of atheroma in manners thought to favor plaque stability, e.g., reduced relative content of macrophages and lipid, as well as increased relative content of smooth muscle cells and collagen. These data implicate CD40/CD40L as crucial mediators not only in the initial events of atherogenesis but also during the evolution of established atheroma. This study lends further support to the importance of this specific inflammatory signaling pathway in atherosclerosis and its complications.
A modified serine cycle in Escherichia coli coverts methanol and CO2 to two-carbon compounds (2018)

Microbial utilization of renewable one-carbon compounds, such as methane, methanol, formic acid, and CO<sub>2</sub>, has emerged as a potential approach to increase the range of carbon sources for bioproduction and address climate change issues. Here, we modify the natural serine cycle present in methylotrophs and build an adapted pathway for Escherichia coli, which allows microorganism to condense methanol (or formate) together with bicarbonate to produce various products. We introduce the modified cycle into E. coli and demonstrate its capability for one-carbon assimilation through growth complementation and isotope labeling experiments. We also demonstrate conversion of methanol to ethanol by utilizing the modified serine cycle in an engineered E. coli strain, achieving a reaction yet to be accomplished by a one-pot chemical process. This work provides a platform to utilize various renewable one-carbon compounds as carbon sources for biosynthesis through a modified serine cycle in E. coli.
Methylation Hypothesis (1979)

L-Methionine had no behavioral effects in normal humans and failed to increase concentrations of S-adenosylmethionine (methyl donor) in human or rat blood, while increasing rat liver levels more than fivefold. Methionine or S-adenosylmethionine in very high doses had almost no effect on methylation of tritiated levodopa in rodent tissues; various "methyl acceptor" molecules, including nicotinamide, guanidineacetic acid, and estradiol similarly had little effect. In rabbit lung, methionine and S-adenosylmethionine not only failed to increase production of dimethyltryptamine, but actually decreased it, possibly due to end-product inhibition by S-adenosylhomocysteine, which also strongly inhibited methylation of dopa in rat. These results fail to support several predictions of the "methylation hypothesis" concerning the pathophysiology and potential treatment of idiopathic psychotic disorders and leave the consistent clinical worsening effects of methionine in schizophrenia unexplained.
LGR7‐Truncate Is a Splice Variant of the Relaxin Receptor LGR7 and Is a Relaxin Antagonist <i>in Vitro</i> (2005)

The relaxin receptor (LGR7) and the insulin-like peptide 3 (INSL3) receptor (LGR8) are unique LGR family members in possessing a single, functionally important amino terminal LDL-A module.1 Mouse and rat cDNA was screened for LGR7 and LGR7 splice variant expression. A uterus-specific exon 4 deleted variant was identified and named LGR7-Truncate. Deletion of exon 4 results in a premature stop codon and a transcript that putatively encodes a secreted protein containing LGR7's LDL-A module. Expression of LGR7-Truncate with LGR7 in HEK-293T cells resulted in decreased relaxin-induced signaling of LGR7. LGR7-Truncate is potentially an endogenous regulator of LGR7 signaling.
SeGCom: A secure group communication mechanism in cluster-tree wireless sensor networks (2009)

Security is a challenging issue in Wireless Sensor Networks (WSNs) due to the dual impact of their inherent constraints and their operation in open and harsh environments. The problem of securing a WSN becomes even more complex when considering group communications. In this paper, we address this problem and propose a new security mechanism for group communications in cluster-tree WSNs. We define a group as a set of sensor nodes in the cluster-tree network sharing the same sensory information (e.g. temperature, pressure, etc.). Our objective is to limit the access to the group data exclusively to the members that have securely joined the group. The main contributions of the paper are (1) the proposal of an efficient and secure group management mechanism for cluster-tree networks, and (2) a secure key distribution between group members. Finally, our security analysis shows that the proposed scheme is efficient and secure.
Three-Dimensional In Vitro Co-Culture Model of Breast Tumor using Magnetic Levitation (2014)

In this study, we investigate a novel in vitro model to mimic heterogeneous breast tumors without the use of a scaffold while allowing for cell-cell and tumor-fibroblast interactions. Previous studies have shown that magnetic levitation system under conventional culturing conditions results in the formation of three-dimensional (3D) structures, closely resembling in vivo tissues (fat tissue, vasculature, etc.). Three-dimensional heterogeneous tumor models for breast cancer were designed to effectively model the influences of the tumor microenvironment on drug efficiency. Various breast cancer cells were co-cultured with fibroblasts and then magnetically levitated. Size and cell density of the resulting tumors were measured. The model was phenotypically compared to in vivo tumors and examined for the presence of ECM proteins. Lastly, the effects of tumor stroma in the 3D in vitro model on drug transport and efficiency were assessed. Our data suggest that the proposed 3D in vitro breast tumor is advantageous due to the ability to: (1) form large-sized (millimeter in diameter) breast tumor models within 24 h; (2) control tumor cell composition and density; (3) accurately mimic the in vivo tumor microenvironment; and (4) test drug efficiency in an in vitro model that is comparable to in vivo tumors.
Treatment of insomnia: an alternative approach. (2000)

Insomnia is the most common sleep disorder, and is often associated with significant medical, psychological, and social disturbances. Conventional medical treatment for insomnia includes psychological and pharmacological approaches; however, long-term use of frequently prescribed medications can lead to habituation and problematic withdrawal symptoms. Therefore, herbal and other natural sleep aids are gaining popularity, as herbs commonly used for their sedative-hypnotic effects do not have the drawbacks of conventional drugs. Whether alternative therapies possess activity similar to conventional therapies needs further evaluation.
Demineralized bone matrix gelatin as scaffold for tissue engineering (2010)

The aim of the present study was to do a comparative light microscopical and histochemical analysis of bone regeneration processes in rabbits, with the use of demineralized bone matrix gelatin scaffolds. Our histological results showed that no gelatin scaffold was extruded, indicating that neither body fluid nor blood swept the gelatin scaffold from the implantation site, nor was the gelatin scaffold biodegraded. Additionally, no abscess or inflammation of the peripheral osseous tissues at the implantation site was observed, suggesting that the implantation of the gelatin scaffold in the vertebra bone defect did not cause histopathology or exhibit malbiocompatibility with the peripheral osseous tissues.