gebhart/patrepeval huggingface dataset:
Modelling and Control of a Parallel Redundant Manipulator with Hydraulic Actuators (2006)

The parallel robotic manipulator, MULTIPOD, is specially designed for carrying out drilling tasks in mines. It is based on two parallel three-degree-of-freedom mechanisms in serial connection. The structure that provides excellent stiffness is hydraulically driven and has six degrees of mobility. The pose of the end-effector is described by five degrees of freedom. In this paper, complete kinematic and dynamic analyses of the manipulator are carried out. In addition, a proportional controller equipped with hydraulic force feedback is designed for the robot. The simulated results that demonstrate the behaviour of the manipulator are presented in this paper.
A Flexible Accounting Model for Cloud Computing (2011)

Cloud computing is the new paradigm that has changed traditional computer business schemes: static, close, centralised, and proprietary methods cannot cope with the new requirements that have emerged. Still, this new scenario poses a number of opportunities to use and novel problems to be faced. Specifically, we focus on the accounting of cloud computing services. These may include relations between different service providers, user connections to different simultaneous services, and the need for new services to be incorporated into the accounting systems to enable emerging business models, and so on. Classic solutions fail to provide a proper answer as they were not specifically design for cloud computing. Against this background, we put forward a flexible accounting model that allows the deployment of cloud computing services to accomplish all the service providers' requirements. Furthermore, we validate the model by presenting its implementation on a real cloud computing service.
Rate distortion optimization for efficient watermarking in the DCT domain (2008)

In this work we concentrate on a unique algorithm for watermarking, which is based on a modulo operation method. This method hides an integer number in the sum of the quantized DCT coefficients in a JPEG block. We use the Lagrangian optimization algorithm, which enables us to select the possible coefficients that will be changed in order to insert the watermark while controlling the bit rate and the distortion level (MSE). The uniqueness of this work is that by integrating the rate-distortion optimization method with the watermarking process we can control the rate of the watermarked image with minimum additional distortion. Initial results of our algorithm show that we can add 4-5 bits per DCT block (8times8 pixels), with a distortion level of 0.7 [dB] at JPEG compression quality above 75%.
Intrathecal administration of nitroxides as potential contrast agents for MR imaging. (1987)

The diagnosis of various disorders of the cerebrospinal fluid (CSF) with magnetic resonance (MR) imaging may require the intrathecal administration of a paramagnetic contrast agent. Furthermore, the CSF route provides direct access to the brain, circumventing the blood-brain barrier. Three nitroxides, two charged and one uncharged, were administered intrathecally to dogs to assess their potential as contrast agents for MR imaging of the CSF. Nitroxide concentrations and proton T1 values were measured in samples of CSF removed at various times after nitroxide administration, and pharmacokinetic curves were constructed. The charged nitroxides had considerably longer half-lives than the uncharged compound. On in vivo MR imaging of the CSF (surrounding the upper cervical cord and brain stem) in one dog, use of a charged nitroxide as contrast agent led to considerably higher CSF signal intensity than was observed in the nonenhanced, baseline T1-weighted images. This effect was achieved at low doses (20 mumol) and sustained for at least 90 minutes. The intrathecal use of nitroxides as contrast agents for MR imaging warrants continued investigation.
Thermoelectric Fabrics: Toward Power Generating Clothing (2015)

Herein, we demonstrate that a flexible, air-permeable, thermoelectric (TE) power generator can be prepared by applying a TE polymer (e.g. poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate)) coated commercial fabric and subsequently by linking the coated strips with a conductive connection (e.g. using fine metal wires). The poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) coated fabric shows very stable TE properties from 300 K to 390 K. The fabric device can generate a TE voltage output (V) of 4.3 mV at a temperature difference (ΔT) of 75.2 K. The potential for using fabric TE devices to harvest body temperature energy has been discussed. Fabric-based TE devices may be useful for the development of new power generating clothing and self-powered wearable electronics.
Persistent heaps (1990)

A model for extending modular languages to support data persistence in an object-oriented paradigm is presented. The method has been applied to Modula-2 because of its powerful management of data encapsulation; comparable features can, however, be added to other object-based languages. The extension is based on the definition of a new construct which is syntactically similar to a module, supports the concepts of class and object, and implements persistent data structures. Persistence is obtained by integrating these data structures into the file system of the underlying operating system by means of an object manager. The class concept has been extended by including persistent heaps (one for each class), to allow the dynamical allocation of persistent variables, local to each object. Objects are considered second-class entities; they are used as repositories of persistent data.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Surface graft polymerization onto silicone (1993)

Abstract A method was developed for surface graft polymerization onto silicone. A silicone prepolymer carrying vinyl groups, which can be cured by a free‐radical mechanism, was used. Acrylamide can be easily graft polymerized by simply heating the films made of a mixture of the silicone prepolymer and peroxide in an acrylamide monomer solution using an autoclave. Any complicated procedures, such as thorough degassing of the silicone films and the monomer solution, and sealing them into a glass ampoule, are not necessary. The grafted layer uniformly covered the silicone surface. The surface properties of the silicone become hydrophilic and slippery after grafting of the poly(acrylamide). © 1993 John Wiley & Sons, Inc.
A design strategy of bipolar host materials for more than 30 times extended lifetime in phosphorescent organic light-emitting diodes using benzocarbazole and quinazoline (2017)

Stable host materials based on benzocarbazole and quinazoline were synthesized to establish a design strategy of bipolar hosts for elongated lifetime in orange phosphorescent organic light-emitting diodes (PHOLEDs).
A description of metal-vapour production in a hollow-cylindrical magnetron sputtering discharge (1999)

An analytical description of metal-vapour production in a hollow-cylindrical magnetron discharge is presented. Its predictions of the current and spatial dependence of metal-vapour density are examined with experiments. The distinctions between the present discharge and conventional hollow-cathode discharges are also discussed.
Justice Between Generations and Health Care for the Elderly: An Introduction (1988)

We live in an aging society in which those over age 75 and 85 are the fastest growing age groups in the population. Changing the age profile in a society also changes the distribution of needs, and changing distributions of needs means we must alter institutions, like the health care system, which must be responsive to needs. But change brings political conflict and perceptions of competition. Thus we are caught between pressures to provide adequate, appropriate, and affordable health care for the elderly and recent demands that we pay attention to issues of 'generational equity'.
On multi-class multi-server queueing and spare parts management (2000)

Multi-class multi-server queuing problems are a generalization of the wellknown M/M/k situation to arrival processes with clients of N types that require exponentially distributed service with different averaged service time. Problems of this sort arise naturally in various applications, such as spare parts management, for example. In this paper we give a procedure to construct exact solutions of the stationary state equations. Essential in this procedure is the reduction of the problem for n = the number of clients in the system > k to a backwards second order difference equation with constant coefficients for a vector in a linear space with dimension depending on Nand k, denoted by d(N,k). Precisely d(N,k) of its solutions have exponential decay for n 00. Next, using this as input, the equations for n ::; k can be solved by backwards recursion. It follows that the exact solution does not have a simple product structure as one might expect intuitively. Further, using the exact solution several interesting performance measures related to spare parts management can be computed and compared with heuristic approximations. This is illustrated with numerical results.
Are Halocarboranes Suitable for Substitution Reactions? The Case for 3-I-1,2-<i>closo</i>-C<sub>2</sub>B<sub>10</sub>H<sub>11</sub>:  Molecular Orbital Calculations, Aryldehalogenation Reactions, <sup>11</sup>B NMR Interpretation of <i>closo</i>-Carboranes, and Molecular Structures of 1-Ph-3-Br-1,2-<i>closo</i>-C<sub>2</sub>B<sub>10</sub>H<sub>10</sub> and 3-Ph-1,2-<i>closo</i>-C<sub>2</sub>B<sub>10</sub>H<sub>11</sub> (2001)

In this paper, the chemistry of 3-X-1,2-closo-C(2)B(10)H(11) (X = halogen) derivatives is extended. Molecular orbital and (11)B and (13)C NMR calculations on these species are presented. A qualitative interpretation of the (11)B NMR spectra of closo o-carborane derivatives is also provided. The synthesis of 3-X-1-R-o-carborane (X = I, Br and R = Me, Ph) derivatives is reported, and aryldehalogenation at the B3 position is reported for the first time. The molecular and crystal structures of 1-phenyl-3-bromo-1,2-dicarba-closo-dodecaborane and 3-phenyl-1,2-dicarba-closo-dodecaborane are described.
Characterization of the Macrolide P-450 Hydroxylase from <i>Streptomyces venezuelae</i> Which Converts Narbomycin to Picromycin<sup>,</sup> (1998)

The post-polyketide synthase (PKS) biosynthetic tailoring of macrolide antibiotics usually involves one or more oxidation reactions catalyzed by cytochrome P450 monooxygenases. As the specificities of members from this class of enzymes vary significantly among PKS gene clusters, the identification and study of new macrolide P450s are important to the growing field of combinatorial biosynthesis. We have isolated the cytochrome P450 gene picK from Streptomyces venezuelae which is responsible for the C-12 hydroxylation of narbomycin to picromycin. The gene was located by searching regions proximal to modular PKS genes with a probe for macrolide P450 monooxygenases. The overproduction of PicK with a C-terminal six-His affinity tag (PicK/6-His) in Escherichia coli aided the purification of the enzyme for kinetic analysis. PicK/6-His was shown to catalyze the in vitro C-12 hydroxylation of narbomycin with a kcat of 1.4 s-1, which is similar to the value reported for the related C-12 hydroxylation of erythromycin D by the EryK hydroxylase. The unique specificity of this enzyme should be useful for the modification of novel macrolide substrates similar to narbomycin, in particular, ketolides, a promising class of semisynthetic macrolides with activity against erythromycin-resistant pathogens.
Muscarinic toxin selective for m4 receptors impairs memory in the rat (1998)

The selectivity of the muscarinic toxin MT3 from green mamba snake venom was corroborated by inhibition of the binding of [3H]NMS, a classical muscarinic radioligand, to native and cloned muscarinic receptors, showing 214-fold higher affinity for m4 than for m1 subtype, without significant binding to the others. The highest concentrations of MT3 sites (putative m4 receptors) in the rat brain were found in striatum and olfactory tubercle, intermediate concentration in dentate gyrus and CA1, and lower but still conspicuous levels in CA3 and frontal cortex. MT3 caused retrograde amnesia of an inhibitory avoidance task, when injected into the dorsal hippocampus of rats after training, suggesting a positive role of these MT3 sensitive sites, which are probably m4 muscarinic receptors, in memory consolidation of this task.
Genomic and Biological Analysis of Phage Xfas53 and Related Prophages of <i>Xylella fastidiosa</i> (2009)

We report the plaque propagation and genomic analysis of Xfas53, a temperate phage of Xylella fastidiosa. Xfas53 was isolated from supernatants of X. fastidiosa strain 53 and forms plaques on the sequenced strain Temecula. Xfas53 forms short-tailed virions, morphologically similar to podophage P22. The 36.7-kb genome is predicted to encode 45 proteins. The Xfas53 terminase and structural genes are related at a protein and gene order level to P22. The left arm of the Xfas53 genome has over 90% nucleotide identity to multiple prophage elements of the sequenced X. fastidiosa strains. This arm encodes proteins involved in DNA metabolism, integration, and lysogenic control. In contrast to Xfas53, each of these prophages encodes head and DNA packaging proteins related to the siphophage lambda and tail morphogenesis proteins related to those of myophage P2. Therefore, it appears that Xfas53 was formed by recombination between a widespread family of X. fastidiosa P2-related prophage elements and a podophage distantly related to phage P22. The lysis cassette of Xfas53 is predicted to encode a pinholin, a signal anchor and release (SAR) endolysin, and Rz and Rz1 equivalents. The holin gene encodes a pinholin and appears to be subject to an unprecedented degree of negative regulation at both the level of expression, with rho-independent transcriptional termination and RNA structure-dependent translational repression, and the level of holin function, with two upstream translational starts predicted to encode antiholin products. A notable feature of Xfas53 and related prophages is the presence of 220- to 390-nucleotide degenerate tandem direct repeats encoding putative DNA binding proteins. Additionally, each phage encodes at least two BroN domain-containing proteins possibly involved in lysogenic control. Xfas53 exhibits unusually slow adsorption kinetics, possibly an adaptation to the confined niche of its slow-growing host.
Some principles for designing a wide-area optical network (2002)

Explores design principles for next generation optical wide-area networks, employing wavelength-division multiplexing (WDM), and targeted to nationwide coverage. This almost-all-optical network will exploit wavelength multiplexers and optical switches in routing nodes, so that arbitrary virtual topologies may be imbedded on a given physical network. The virtual topology, which is packet switched and which consists of a set of all-optical lightpaths, is set up to exploit the relative strengths of both optics and electronics viz. packets of information are carried by the virtual topology "as far as possible" in the optical domain, but packet forwarding from lightpath to lightpath is performed via electronic switching, whenever required. Algorithms are developed so that the WDM-based network architecture will (a) provide a high aggregate system capacity due to spatial reuse of wavelengths, and (b) support a large and scalable number of users, given a limited number of wavelengths. The authors illustrate their approaches by employing experimental traffic statistics collected from NSFNET.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Magic moments in magnetism (1993)

Applications of ferromagnetism – magnetic recording, electromagnetic machinery, permanent magnets – frequently demand materials with the largest possible magnetisation. Iron has the highest magnetisation of all the elements, 2.15 tesla at room temperature; cobalt and nickel have smaller values, 1.76 T and 0.61 T respectively. Gadolinium is the only other element to exhibit ferromagnetism at room temperature, but its Curie point is so low (289 K) that a warm day destroys the magnetic order and turns it paramagnetic.
Optimum Size and Location of Shunt Capacitors for Reduction of Losses on Distribution Feeders (1981)

New generalized procedures are developed for optimizing the net savings associated with reduction of power and energy losses through shunt capacitor placement on primary distribution feeders. These procedures are applied to realistic problems to facilitate their immediate use by the electric utility distribution system designer. It is shown that a basic principle, called here "The Equal Area Criterion", offers significant computational and physical insight into numerous problems outside the bounds of studies previously reported and widely accepted in industry
A New Descriptor for 2D Depth Image Indexing and 3D Model Retrieval (2007)

We present here a new descriptor for depth images adapted to 2D/3D model matching and retrieving. We propose a representation of a 3D model by 20 depth images rendered from the vertices of a regular dodecahedron. One depth image of a 3D model is associated to a set of depth lines which will be afterward transformed into sequences. The depth sequence information provides a more accurate description of 3D shape boundaries than using other 2D shape descriptors. Similarity computing is performed when dynamic programming distance (DPD) is used to compare the depth line descriptors. The DPD leads to an accurate matching of sequences even in the presence of local shifting on the shape. Results on a large 3D database show efficiency of our 2D/3D approach.
Improving emergency department patient flow (2016)

Emergency departments (ED) face significant challenges in delivering high quality and timely patient care on an ever-present background of increasing patient numbers and limited hospital resources. A mismatch between patient demand and the ED's capacity to deliver care often leads to poor patient flow and departmental crowding. These are associated with reduction in the quality of the care delivered and poor patient outcomes. A literature review was performed to identify evidence-based strategies to reduce the amount of time patients spend in the ED in order to improve patient flow and reduce crowding in the ED. The use of doctor triage, rapid assessment, streaming and the co-location of a primary care clinician in the ED have all been shown to improve patient flow. In addition, when used effectively point of care testing has been shown to reduce patient time in the ED. Patient flow and departmental crowding can be improved by implementing new patterns of working and introducing new technologies such as point of care testing in the ED.
¿Millor/pitjor?: El sueño de Cassandra (2007)

Aryl hydrocarbon hydroxylase and 16alpha-hydroxylase were examined in intact, cultured human lymphocytes. The two microsomal mixed-function oxygenases had different pH optima and showed competitive inhibition for enzyme induction and activity. Population distributions were lognormal for both enzymes, giving apparent evidence for polygenic control. Induced levels of AHH were slightly higher among first-order relatives of lung or colon cancer patients than in the control group. The correlation coefficient (r) for AHH and SAH coinducibility was -0.08, indicating no correlation and suggesting the absence of association between the two enzymes in man.
WDM-based local lightwave networks. II. Multihop systems (1992)

For pt.I see ibid., vol.6, no.3, p.12-27, 1992. A survey of wavelength-division-multiplexing (WDM)-based local lightwave networks is presented. The general characteristics of multihop systems are discussed, and various multihop approaches are reviewed. The construction of optimal structures based on minimizing the maximum link flow and optimizations based on minimization of the mean network packet delay are also reviewed. Regular topologies that have been studied as candidates for multihop lightwave networks, including the perfect shuffle, the de Bruijn graph, the toroid, and the hypercube, are discussed. Near-optimal node placement algorithms and shared-channel multihop systems are also discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Reducing the Risk of Falls Through Proprioceptive Dynamic Posture Training in Osteoporotic Women with Kyphotic Posturing (2002)

The subjects who had abnormal balance and used the proprioceptive dynamic posture training program had the most significant improvement in balance. Improved balance could reduce the risk of falls.
Methods of synthesis and performance improvement of lithium iron phosphate for high rate Li-ion batteries: A review (2015)

Lithium ion battery technology has the potential to meet the requirements of high energy density and high power density applications. A continuous search for novel materials is pursued continually to exploit the latent potential of this technology. In this review paper, methods for preparation of Lithium Iron Phosphate are discussed which include solid state and solution based synthesis routes. The methods to improve the electrochemical performance of lithium iron phosphate are presented in detail.
Present Status of Serum Tumor Markers in Diagnosis, Prognosis, and Evaluation of Therapy (1986)

(1986). Present Status of Serum Tumor Markers in Diagnosis, Prognosis, and Evaluation of Therapy. Cancer Investigation: Vol. 4, No. 4, pp. 305-327.
A Method To Convert Multiple-Shot Section Openhole Completions Into Cased-Hole Completions With Zonal Isolation (1986)

ABSTRACT A method to convert multiple shot section open hole completions into cased hole completions has been developed and tested. This method provides zonal isolation between shot sections thus helping prevent injection fluid loss to non-pay intervals. The process, called "Puddle-Pack", involves formulating a permeable resin fill material and placing the material in the shot open hole to fill the large voids. The excess material is then drilled out and underreamed to allow a liner to be run and cemented in place. This paper details the necessity for the development of the process, design requirements, laboratory pretesting of the sand-resin mixture, remedial procedures, data demonstrating zonal isolation and profile improvement, and economic advantages of converting these wells to cased hole completions.
The Development of Immature Bovine Oocytes Cryopreserved by 1,2-Propanediol. (1995)

Immature bovine oocytes were equilibrated with a mixture of 1.6 M 1, 2-propanediol and various concentrations of sucrose (0, 0.01, 0.05, 0.1, 0.2 or 0.3 M) by the three-step method. Subsequently, the oocytes were cooled from 0 C to -5.5 C at a rate of 1 C/min. They were seeded at -5.5 C, cooled at a rate of 0.3 C/min to -30 C and plunged into liquid nitrogen. After being thawed and having their cyroprotectants diluted by the three-step method, the oocyte survival rate was assessed by examination of morphology and development following in vitro maturation/in vitro fertilization and culture. The rate of development of morphologically normal oocytes and of development to the two-cell stage in immature oocytes frozen in the presence of 1, 2-propanediol containing 0.3 M sucrose were significantly lower (P<0.05) than those observed at lower concentrations of sucrose (0 to 0.2 M). Of the oocytes frozen in the presence of 1, 2-propanediol containing sucrose at concentrations less than 0.2 M, very few frozen-thawed oocytes (0 M, 1.7%; 0.01 M, 1.3%; 0.05 M, 1.6%; 0.1 M, 0.6%; 0.2 M, 2.2%) developed to the blastocyst stage. Five blastocysts derived from immature oocytes frozen in the presence of 1, 2-propanediol containing 0.2 M sucrose were transferred nonsurgically to three recipients. Consequently, one recipient was diagnosed as pregnant with a single fetus by an ultrasonographer after 60 days of estrus.