gebhart/patrepeval huggingface dataset:
Design of a high-speed reliable ball bearing (1994)

A high-speed, reliable ball bearing has been designed for at least fifteen years of operation in space effectors, MWA's, and RWA's. Advanced bearing concepts have been used in this design, such as: no ball retainer, which eliminates all retainer-related problems; an external lubricazing system that will supply the lubricant at a specified flow rate; and a cartridge assembly that will allow the instrument user to purchase a ready to use bearing assembly, with lubricator. Currently, two assemblies are on life test at 12,000 RPM and have accumulated over 20,000 hours each, with consistent low-torque losses. This paper will describe each of the salient features.
Disturbance robustness measures for underconstrained cable-driven robots (2006)

This paper investigates the robustness of underconstrained cable-driven robots to external disturbance wrenches (force/moment combinations). Two cases are considered: impulsive disturbance wrenches and static (constant) disturbance wrenches. In the analysis of these cases a mapping to an intermediate space is introduced, which allows a restatement of Gauss' principle of least constraint in a simpler form. Two measures are developed: the impulsive disturbance robustness measure and the static disturbance robustness measure. It is then shown that these two measures can be expressed as a single disturbance robustness measure, R. This single measure enables underconstrained cable robots to be designed for maximum robustness to both impulsive and static disturbances
Matrice fondamentale et calibration visuelle sur l'environnement. Vers une plus grande autonomie des système robotiques. (1992)

Cette thèse s'attaque au problème général de la calibration d'une caméra mobile en utilisant uniquement des vues quelconques de l'environnement, donc sans utiliser de mire, ni de connaissance a priori sur le mouvement de la caméra. La méthode, appelée autocalibration, est fondée sur des propriétés algébriques de géométrie projective. Elle implique dans un premier temps le calcul de la transformation épipolaire grâce à la matrice fondamentale, notion que nous avons définie, qui est d'une importance primordiale pour tous les problèmes de vision où nous ne disposons pas déjà d'une calibration métrique complète. La détermination sans ambiguïté de cette matrice nécessite un minimum de huit correspondances de points. Les premières techniques que nous avons étudiées sont fondées sur la conservation du birapport et une méthode due à Sturm. Elles visent à calculer les épipoles. Nous avons ensuite introduit de multiples critères et paramétrages permettant l'estimation robuste de la matrice fondamentale par des techniques dérivées de l'algorithme de Longuet-Higgins, que nous avons comparées. Nous mettons en évidence le fait qu'une configuration de points particulière, les ensembles de plans, se prête à d'autres méthodes de calcul qui leur sont propres, mais rend de toutes manières l'estimation moins précise. L'influence du choix des mouvements eux-mêmes sur la stabilité du calcul est importante, nous le caractérisons par des calculs de covariance, et expliquons certaines situations grâce à la surface critique dont nous proposons une étude opérationnelle. Dans un second temps, lorsqu'un minimum de trois mouvements a été effectué, nous pouvons obtenir les paramètres intrinsèques de la caméra au moyen d'un système d'équations polynomiales dites de Kruppa, dont nous avons établi quelques importantes propriétés. Nous proposons d'abord une méthode semi-analytique de résolution, puis une approche itérative performante qui nous permet de prendre en compte des longues séquences d'images, ainsi que l'incertitude. Le calcul des paramètres extrinsèques, et une extension de la méthode à la calibration d'un système stéréo par une nouvelle méthode complètent ce travail, dont la partie expérimentale comporte de très nombreuses simulations, ainsi que des exemples réels.
Toward Homogeneous Erythropoietin: Non-NCL-Based Chemical Synthesis of the Gln<sup>78</sup>−Arg<sup>166</sup> Glycopeptide Domain (2009)

Single erythropoietin (EPO) glycoforms with defined mature oligosaccharide structures and amino acid sequences are essential to elucidate the molecular mechanisms by which carbohydrates exert various physiological and metabolic functions and to explore the possible links between carbohydrates and the prevention or management of diseases. To demonstrate that it is possible to generate EPO even without recourse to cysteine-based native chemical ligation, a concise synthesis of the partially protected EPO fragment (78-166) bearing fully mature N- and O-glycans is described.
The 2015 State of Delta Sigma Rho-Tau Kappa Alpha (2015)

Brief history and update of the Delta Sigma Rho-Tau Kappa Alpha organization.
Prolonged effect of antihypertensive agents. (1974)

tion that in their experience with this drug the blood pressure, once controlled, may remain within noTmal limits for up to a month after stopping treatment.We have recently observed the same phenomenon after discontinuing therapy with indoramin in hypertensive patients,' when no¢motension may continue for considerably longer than four weeks.Indoramin -also has adrenoceptor blocking activity,23 Since prolonged normotension is seen after discontinuing other antihypertensive agents however,4 this effect may well be due to a common mechanism such as "barostat" resetting5 rather than a direct action of the drugs themselves.This phenomenon conplicates the de- sign of clinical trials, as Drs.Stokes and Weber point out.It also suggests4 that morbidity due rto antihypertensive agents could frequently be avoided by stopping or reducing the dose of these drugs afiter long periods of s,atisfactory 'blood pressure control.-Weare, etc.,
An Automated Method for Delineating a Reference Region Using Masked Volumewise Principal-Component Analysis in 11C-PIB PET (2009)

The automatic method is helpful in the delineation of the reference region of (11)C-PIB PET studies of the human brain and is much faster and more precise than manual delineation.
Additions to the Known Endemic Flora and Fauna of Arkansas (1988)

Robison and Smith's (1982) list of endemic species of Arkansas rendered a valuable service to the community of biologists interested in the endemic biota of the state. These authors listed seven species of plants and forty species of animals endemic to Arkansas. This paper stimulated my interest in the endemic biota of the Ozark/Ouachita Mountain region of Missouri, Arkansas, and Oklahoma. During the course of compiling a list of Ozark/Ouachita endemic species several references were found that listed Arkansas endemic taxa inadvertently overlooked by Robison and Smith. Most notable among these references was Chamberlin and Hoffman (1958), Checklist of the Millipeds of North America. This paper chronicles the work of N. B. Causey and R. V. Chamberlin who describe thirty-two species of endemic Arkansas Millipeds. These records as well as a few additional records for other animal and plant taxa are presented in this paper.
Computing correspondence based on regions and invariants without feature extraction and segmentation (2002)

The problem addressed is the matching of corresponding regions in two images, even when the image intensity may be smoothly varying without distinctive edges. Corresponding small regions are assumed to be related by affine transformations. The matching is done by using a new class of low computational cost affine invariants. This approach also computes the affine transformation, and is ideal for applications to 3-D motion estimation and 3-D surface reconstruction, image alignment, etc. No feature extraction, segmentation or epipolar constraint is required. The advantage of the authors' approach over area matching is that it handles large baselines, i.e., the distance between camera positions, where the differences in orientation and linear distortion of two areas being compared is large.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Genotype calling from next-generation sequencing data using haplotype information of reads (2012)

Supplementary data are available at Bioinformatics online.
Shear bond strengths of new enamel etchants. (1993)

Many dental adhesive systems now rely on simultaneous etching of enamel and dentin. Instead of the traditional 35-40% phosphoric acid, new etchants (including 10% maleic acid, 10% phosphoric acid, and oxalic acid/aluminum nitrate) are used. This in vitro study determined the shear bond strengths of resin composite to enamel which was etched with these agents according to manufacturers' instructions. The control etchant, 35% phosphoric acid, gave a mean bond strength of 24.5 MPa. 10% maleic acid and 10% phosphoric acid had significantly lower shear bond strengths (13.2 MPa). Gluma 1 & 2 Conditioner (oxalic acid/aluminum nitrate) had a mean bond strength of 6.3 MPa, which was significantly less than the other etchants. Bond strengths for each etchant were not affected by the type of unfilled resin used.
Deformed fuzzy automata for the text error correction problem (2000)

A fuzzy method for the text error correction problem is introduced. The method is able to handle insert, delete and substitution errors. Moreover, it uses the measurement level output that an Isolated Character Classifier can provide. The method is based on a Deformed System, in particular, a deformed fuzzy automaton is defined to model the possible errors in the words of the texts. Experimental results show good performance in correcting the three types of errors.
Report of the Second Asian Prostate Cancer (A-CaP) Study Meeting (2017)

The Asian Prostate Cancer (A-CaP) Study is an Asia-wide initiative that has been developed over the course of 2 years. The study was launched in December 2015 in Tokyo, Japan, and the participating countries and regions engaged in preparations for the study during the course of 2016, including patient registration and creation of databases for the purpose of the study. The Second A-CaP Meeting was held on September 8, 2016 in Seoul, Korea, with the participation of members and collaborators from 12 countries and regions. Under the study, each participating country or region will begin registration of newly diagnosed prostate cancer patients and conduct prognostic investigations. From the data gathered, common research themes will be identified, such as comparisons among Asian countries of background factors in newly diagnosed prostate cancer patients. This is the first Asia-wide study of prostate cancer and has developed from single country research efforts in this field, including in Japan and Korea. At the Second Meeting, participating countries and regions discussed the status of preparations and discussed various issues that are being faced. These issues include technical challenges in creating databases, promoting participation in each country or region, clarifying issues relating to data input, addressing institutional issues such as institutional review board requirements, and the need for dedicated data managers. The meeting was positioned as an opportunity to share information and address outstanding issues prior to the initiation of the study. In addition to A-CaP-specific discussions, a series of special lectures was also delivered as a means of providing international perspectives on the latest developments in prostate cancer and the use of databases and registration studies around the world.
Use of forward projection to correct patient motion during SPECT imaging (1998)

We have developed an iterative method to correct axial and tangential patient motion occurring during tomographic acquisition. The method uses axial images reconstructed from the uncorrected projection images, which are then forward projected to form a basis for registering the original planar images and, in the process, directly seeks to establish a consistent data set. Our method can be applied to all SPECT scans including myocardial and brain SPECT. We demonstrate that the method is capable of detecting and quantitatively correcting for complex motion in both axial and tangential directions. Results from phantom experiments show excellent resolution and contrast recovery after simulated movement in both the axial and tangential directions and initial results with clinical data sets are encouraging.
Tracking power converter for supply modulation of RF power amplifiers (2002)

This paper describes a tracking power converter and the controller IC for its implementation. The tracking power converter is used for supply modulation of a linear RF power amplifier. Supply modulation improves RF power amplifier efficiency for variable envelope RF signals. This system maximizes tracking bandwidth (/spl sim/160 kHz), ripple suppression (/spl sim/70 dB) and power conversion efficiency (/spl sim/92%) with a relatively low switching frequency (800 kHz).
Isolation and subcloning analysis of functional centromere DNA (CEN11) from Saccharomyces cerevisiae chromosome XI. (1982)

We have cloned segments of yeast DNA containing the centromere XI-linked MET14 gene. This was done by selecting directly in Saccharomyces cerevisiae for complementation of a met14 mutation after transformation with a hybrid plasmid DNA genomic library. Genetic evidence indicates that functional centromere DNA (CEN11) from chromosome XI is also contained on the segment of S. cerevisiae DNA cloned in pYe(MET14)2. This plasmid is maintained stably in budding S. cerevisiae cultures and segregates predominantly 2+:20- through meiosis. The CEN11 element has been subcloned in vector YRp7' on an S. cerevisiae DNA fragment 900 base pairs in length [pYe(CEN11)10]. The mitotic and meiotic behavior of plasmids containing CEN11 plus a DNA replicator (ars) indicates that the centromere DNA sequences enable these plasmids to function as true minichromosomes in S. cerevisiae.
Serotonin 5HT<sub>1B/1D</sub> Receptor Agonists Abolish NMDA Receptor-evoked Enhancement of Nitric Oxide Synthase Activity and cGMP Concentration in Brain Cortex Slices (1999)

Our previous studies indicating that the function of excitatory amino acids, NMDA type receptor, is modulated by serotonin focused on the interaction between serotonin 5HT1B/1D and glutamate, NMDA receptor in brain cortex. The effect of agonists of 5HT1B/1D receptor, sumatriptan, and zolmitriptan on NMDA receptor-evoked activation of nitric oxide (NO) and cGMP synthesis in adult rat brain cortex slices was investigated. Two kinds of experiment were carried out using adult rats. In one of them, sumatriptan or zolmitriptan was administered in vivo subcutaneously (s.c.) in a dose of 0.1 mg per kg body weight. Brain slices were then prepared and used in the experiments or, in the other exclusively in vitro studies, both agonists at 10 microM concentration were added directly to the incubation medium containing adult rat brain cortex slices. The data obtained from these studies indicated that stimulation of NMDA receptor in brain cortex slices leads to a large increase in calcium, calmodulin-dependent NO synthase (NOS) activity and to significant enhancement of the cGMP level. This NMDA receptor-dependent NO and cGMP release was completely blocked by competitive and noncompetitive NMDA receptor antagonists APV (10 microM) or MK-801 (10 microM.), respectively. The specific inhibitor of Ca(2+)-dependent isoforms of NOS (N-nitro-1-arginine NNLA and 7-nitroindozole (7-N1)) eliminated the NMDA receptor-mediated enhancement of NO and cGMP release. Moreover, the serotonin 5HT1B/1D receptor agonists sumatriptan and zolmitriptan administrated in vivo (s.c.) or in vitro abolished NMDA receptor-evoked NO signalling in brain cortex. The potency of both agonists investigated directly in vitro was similar to their effect after in vivo administration. These results suggest that both serotonin 5HT1B/1D receptor agonists may play an important role in modulating the NO and cGMP-dependent signal transduction pathway in the brain. This effect of sumatriptan and zolmitriptan on NO signaling in the brain system should be taken into consideration when investigating their mechanism of action in the migraine attack.
An epidemiological study to establish the prevalence of urinary symptoms and felt need in the community: the Leicestershire MRC incontinence study (2000)

Urinary symptoms are very common in adults over 40 years of age living in the community. However, symptom-based estimates probably overestimate the level of need for health care in the community. It may be more effective and efficient to target services, in the first instance, on those people who report clinically significant symptoms that are bothersome or socially disabling. A consensus on thresholds and definitions of urinary symptoms is required to standardize clinical and research work and to target services more appropriately.
Wetting and Spreading (2002)

Chapter 17 addresses the associated phenomena of the wetting of solid surfaces by a liquid and the spreading of a liquid on a solid or liquid surface. Previously introduced in Chapter 6, the concepts of contact angle, its roots, and its implications in wetting and spreading processes are amplified. Included are discussions of contact angle measurement, hysteresis, the effects of surface roughness and heterogeneity, and the thermodynamics of wetting. The use of spreading coefficients and the classification of various wetting processes is included along with a number of potentially useful variations on standard thermodynamic relationships between surface tension and contact angle. The use of contact angle measurements as a tool for evaluating the nature of a solid surface is explained along with some of the implications of the kinetic aspects of wetting processes. Discussions are provided on the effects of surfactant structure, the solution environment, and the nature of the solid surface on expected and observed wetting processes.
The six conserved helicase motifs of the UL5 gene product, a component of the herpes simplex virus type 1 helicase-primase, are essential for its function (1992)

The UL5 protein of herpes simplex virus type 1, one component of the viral helicase-primase complex, contains six sequence motifs found in all members of a superfamily of DNA and RNA helicases. Although this superfamily contains more than 20 members ranging from bacteria to mammalian cells and their viruses, the importance of these motifs has not been addressed experimentally for any one of them. In this study, we have examined the functional significance of these six motifs for the UL5 protein through the introduction of site-specific mutations resulting in single amino acid substitutions of the most highly conserved residues within each motif. A transient replication complementation assay was used to test the effect of each mutation on the function of the UL5 protein in viral DNA replication. In this assay, a mutant UL5 protein expressed from an expression clone is used to complement a replication-deficient null mutant with a mutation in the UL5 gene for the amplification of herpes simplex virus origin-containing plasmids. Eight mutations in conserved regions and three similar mutations in nonconserved regions of the UL5 gene were analyzed, and the results indicate that all six conserved motifs are essential to the function of UL5 protein in viral DNA replication; on the other hand, mutations in nonconserved regions are tolerated. These data provide the first direct evidence for the importance of these conserved regions in any member of the superfamily of DNA and RNA helicases. In addition, three motif mutations were introduced into the viral genome, and the phenotypic analyses of these mutants are consistent with results from the transient replication complementation assay. The ability of these three mutant UL5 proteins to form specific interactions with other members of the helicase-primase complex, UL8 and UL52, indicates that the functional domains required for replication activity of UL5 are separable from domains responsible for protein-protein interactions. It is anticipated that this type of structure-function analysis will lead to the identification of protein domains that contribute not only to the enzymatic activities of helicase or primase but also to protein-protein interactions within members of the complex.
Back Radiation Suppression Through a Semitransparent Ground Plane for a Millimeter-Wave Patch Antenna (2017)

Omnidirectional radiation pattern with minimum backward radiation is highly desirable for base station antennas to minimize the multipath effects. Semitransparent ground planes have been used to reduce the backward radiation, but mostly with complicated nonuniform impedance distribution. In this paper, we propose, for the first time, a round semitransparent ground plane of radius 0.8λ with uniform impedance distribution that can improve the front-to-back ratio of a wide-band patch antenna by 11.6 dB as compared to a similar sized metallic ground plane. The value of uniform impedance is obtained through analytical optimization by using asymptotic expressions in the Kirchhoff approximation of the radiation pattern of a toroidal wave scattered by a round semitransparent ground plane. The semitransparent ground plane has been realized using a lowcost carbon paste on a Kapton film. Experimental results match closely with those of simulations and validate the overall concept.
Identification of human CD93 as the phagocytic C1q receptor (C1qRp) by expression cloning (2002)

CD93 is a approximately 120 kDa O-sialoglycoprotein that within the hematopoietic system is selectively expressed on cells of the myeloid lineage. So far, its primary structure and function were unknown. We used retroviral-expression cloning to isolate the CD93 cDNA. Sequence analysis revealed that CD93 is identical to a protein on human phagocytes termed C1q receptor (C1qRp). C1qRp was shown previously to mediate enhancement of phagocytosis in monocytes and was suggested to be a receptor of C1q and two other structurally related molecules. When studying CD93 transductants and control cells, we found that cells expressing CD93 have enhanced capacity to bind C1q. Furthermore, we show that immature dendritic cells (DC) express CD93/C1qRp, and mature DC, known to have reduced capacity for antigen uptake and to have lost the ability to phagocytose, show weak-to-negative CD93/C1qRp expression.