gebhart/patrepeval huggingface dataset:
Thymine and Thymidine Uptake by <i>Haemophilus influenzae</i> and the Labeling of Deoxyribonucleic Acid (1970)

The influence of ribo- and deoxyribonucleosides and ribo- and deoxyribonucleotides on the uptake of radiolabeled thymidine and thymine by Haemophilus influenzae during growth was investigated. A nucleoside-degrading enzyme similar to that reported in Escherichia coli was found to break down thymidine unless other nucleosides were present to divert its action. The presence of other nucleosides permitted a nearly quantitative uptake of even low levels of thymidine. This quantitative uptake of thymidine in the presence of an excess of other nucleosides suggests that the uptake mechanism for thymidine is specific in this organism. Under optimal conditions, as much as 50% of the deoxyribonucleic acid (DNA) thymine was derived from exogenous thymidine. Thymine was not taken up by H. influenzae but, in the presence of purine deoxynucleosides, labeled thymine entered the cells, presumably as thymidine. Ribonucleosides or ribonucleotides inhibited thymine conversion to thymidine, but, as noted above, they were degraded by a cellular enzyme. Thus, unless the ribonucleoside level was excessively high, a cell level of growth was reached at which the inhibiting ribonucleoside was broken down and labeled thymine appeared in the cells at an increasing rate. Twenty-five per cent of the DNA thymine of this organism was labeled with exogenous thymine. The information noted above serves as the basis for isotopically labeling the DNA.
A Portable Weather Station Design Applied in the Smart City (2013)

A portable weather station which is a special made device could get current weather data and contact with the server is proposed. The device could make the weather forecast much more accuracy with the data from the weather forecast and current measurement. The humility sensor, pressure sensor, temperature sensor, GPS module and GPRS module are included in the device. With the GPRS network, the device could connect to server though the internet at any time to upload and download the weather documents. Also, government officials can access the data on the website to manage the current weather data and analysis the weather report on the website. Furthermore, this device could offer weather forecast which meets the special needs for the people in the remote or mountain area.
Actionneurs "stick and slip" pour micro-manipulateurs (1998)

This thesis is a contribution to the development of simple micromanipulators, having high resolution and several degrees-of-freedom, dedicated to the manipulation of miniature objects, the manipulation of biological specimens or to the assembly of microsystems. The actuators for these micromanipulators must have a submicronic resolution over displacements of a few centimeters at a speed of several millimeters per second. They must also be compact and rigid in order ease their integration and to have a high rejection of the external perturbations (vibrations, temperature changes, etc.). Stick and slip actuators studied in this work fulfil very well these requirements. Their main features are: a resolution better than 5 nm over strokes of a few centimeters at a speed of several millimeters per second (2-5 mm/s); a high rigidity (6.5 N/μm) giving an excellent rejection of external perturbations; an extreme simplicity obtained by the combination of the guiding and actuating functions and by using an innovative concept of monolithic flexible structures. This report presents all the stages of our research work: the state of the art: originally, stick and slip actuators have been developed for the scanning probe microscopy (STM or AFM). We have adapted this concept to our purposes. Several innovative solutions allow us to simplify and improve significantly these actuators; the modeling: it allows us to understand in details the behavior of stick and slip actuators and to optimize them; the study of scaling down: it demonstrates that stick and slip actuators can be miniaturized. New applications in the field of microsystems are therefore promising; the experiment: the characterization of a one-degree-of-freedom actuator demonstrates its performances and validates our modeling; the-implementation-and-tests-of-severa1micro-mani.pulators-actuated-by-stick and slip confirm the pertinence of our approach; The results of this thesis will help engineers to design and implement efficient micromanipulators using stick and slip actuators.
Applications of the Theory of Optical Spectroscopy to Numerical Simulations (1993)

A numerical simulation has been developed to extract the optical constants from experimental spectra. In particular, transmission, internal reflection, and external reflection spectra can be simulated for any incident angle, polarization, and sample thickness. The simulation is used here to determine the optical constants of two materials and to illustrate differences in spectral features that arise from variations in experimental conditions. Other potential applications of this method include determining film thicknesses from experimental data, selecting the best spectroscopic technique for a particular sample, and cross-referencing spectroscopic techniques.
Synthesis and polymerization of 5‐(methacrylamido)tetrazole, a water‐soluble acidic monomer (2002)

Abstract The reaction of methacryloyl chloride with 5‐aminotetrazole gave the polymerizable methacrylamide derivative 5‐(methacrylamido)tetrazole ( 4 ) in one step. The monomer had an acidic tetrazole group with a p K a value of 4.50 ± 0.01 in water methanol (2:1). Radical polymerization proceeded smoothly in dimethyl formamide or, after the conversion of monomer 4 into sodium salt 4‐Na , even in water. A superabsorbent polymer gel was obtained by the copolymerization of 4‐Na and 0.08 mol % N , N ′‐methylenebisacrylamide. Its water absorbency was about 200 g of water/g of polymer, although the extractable sol content of the gel turned out to be high. The consumption of 4‐Na and acrylamide (as a model compound for the crosslinker) during a radical polymerization at 57 °C in D 2 O was followed by 1 H NMR spectroscopy. Fitting the changes in the monomer concentration to the integrated form of the copolymerization equation gave the reactivity ratios r 4‐Na = 1.10 ± 0.05 and r acrylamide = 0.45 ± 0.02, which did not differ much from those of an ideal copolymerization. © 2002 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 40: 4333–4343, 2002
Impact of adequate empirical antibiotic therapy on the outcome of patients admitted to the intensive care unit with sepsis* (2003)

In patients admitted to the ICU for sepsis, the adequacy of initial empirical antimicrobial treatment is crucial in terms of outcome, although early mortality rate was unaffected by the appropriateness of empirical antibiotic therapy.
A low power current steering digital to analog converter in 0.18 Micron CMOS (2005)

This paper discusses a number of circuit techniques which address the DC and AC distortion performance of a low power current steering Digital-to-Analog Converter design. The design provides 14 bit resolution and 200 MSPS conversion rate in a 1P4M 0.18 micron CMOS process, with optional 3.3 volt compatible devices, while operating over a wide 3.6 to 1.8 volt supply range. A power dissipation /conversion rate figure of merit of as low as 0.17 mW/MSPS was achieved for 1.8V operation and as low as 0.28 mW/MSPS at 3.3V. SFDR of 70dB is achieved at a 50 MHz output frequency
Anionically Substituted 1,1′,1″‐Methylidynetris[1<i>H</i>‐pyrazole] Ligands for the Formation of Neutral Lanthanide Complexes in Water: Synthesis, Characterization, and Photophysical Properties (2003)

Abstract The six‐step synthesis of the new podand‐type ligand 6,6′,6″‐[methylidenetri(1 H ‐pyrazole‐1,3‐diyl)]tris[pyridine‐2‐carboxylic acid] (LH 3 ) is described. Reaction of LH 3 with LnCl 3 ⋅6 H 2 O (Ln=Eu, Gd, Tb) in MeOH resulted in the isolation of [LnL]⋅HCl complexes characterized by elemental analysis, mass and IR spectroscopy. Photophysical studies of the Eu and Tb complexes in aqueous solutions revealed the characteristic luminescence features of the metal atoms, indicative of an efficient ligand‐to‐metal energy‐transfer process. Determination of the luminescence quantum yields in H 2 O showed the Tb complex to be highly luminescent ( ϕ =15%), while, for the Eu complex, the quantum efficiency was only 2%. Excited‐state‐lifetime measurements in H 2 O and D 2 O evidenced the presence of ca. three H 2 O molecules in the first coordination sphere of the complexes. Investigation of the Gd complex allowed the determination of the ligand‐centered triplet state and showed the ligand to be well suited for energy transfer to the metal. The luminescence properties of the complexes are described, and the properties of the ligand as a suitable complexation pocket is questioned.
ChemInform Abstract: Anisotropic Reactive Ion Etching of Aluminum Using Cl2, BCl3, and CH4 Gases. (1990)

Abstract A technique for anisotropically etching fine line patterns in aluminum films using the gas combination Cl2:BCl3:CH4 is developed in order to avoid the use of the strong carcinogens CCl 4 and CHCl 3 .
DRUM'N'BAYES: ON-LINE VARIATIONAL INFERENCE FOR BEAT TRACKING AND RHYTHM RECOGNITION (2007)

It is useful for music perception and automated accompaniment systems to perceive a music stream as a series of bars containing beats.We present a proof-of-concept implementation of a Variational Bayesian (VB) system for simultaneous beat tracking and rhythm pattern recognition in the domain of semi-improvised music.This is music which consists mostly of known bar-long rhythm patterns in an improvised order, and with occasional unknown patterns.We assume that a lower-level component is available to detect and classify onsets.The system uses Bayesian network fragments representing individual bars and infers beat positions within them.Model posteriors provide principled model competition, and the system may be seen providing a Bayesian rationale for agentbased and blackboard systems.The psychological notion of priming is used to instantiate new candidate models.
XLV.—On the vapour-pressures of bromine and iodine, and on iodine monochloride (1886)

The first page of this article is displayed as the abstract.
Speeding Up Set Intersections in Graph Algorithms using SIMD Instructions (2018)

In this paper, we focus on accelerating a widely employed computing pattern --- set intersection, to boost a group of graph algorithms. Graph's adjacency-lists can be naturally considered as node sets, thus set intersection is a primitive operation in many graph algorithms. We propose QFilter, a set intersection algorithm using SIMD instructions. QFilter adopts a merge-based framework and compares two blocks of elements iteratively by SIMD instructions. The key insight for our improvement is that we quickly filter out most of unnecessary comparisons in one byte-checking step. We also present a binary representation called BSR that encodes sets in a compact layout. By combining QFilter and BSR, we achieve data-parallelism in two levels --- inter-chunk and intra-chunk parallelism. Moreover, we find that node ordering impacts the performance of intersection by affecting the compactness of BSR. We formulate the graph reordering problem as an optimization of the compactness of BSR, and prove its strong NP-completeness. Thus we propose an approximate algorithm that can find a better ordering to enhance the intra-chunk parallelism. We conduct extensive experiments to confirm that our approach can improve the performance of set intersection in graph algorithms significantly.
The functionalisation of wool by tris(hydroxymethyl)phosphine for metal ion recovery (2009)

Tris(hydroxymethyl)phosphine (THP) was prepared by the addition of a stoichiometric amount of base to tetrakis(hydroxymethyl)phosphonium chloride (THPC). Freshly prepared THP was successfully immobilised onto wool through a Mannich-type condensation reaction between a hydroxymethyl group and an amine on the wool surface, forming stable gt;P-CH2-Nlt; coupling links. The immobilisation of THP to wool stabilised the THP, which resulted in the decreased oxidation of THP to tris(hydroxymethyl)phosphine oxide (THPO). \n\nThe presence of immobilised phosphine groups was determined colorimetrically by reaction with Ni2+ ions, which produced a bright orange nickel-phosphine complex, as well as quantitatively, by measuring nickel uptake using ICP-MS. Immobilised THP-wool showed proportional binding for varying concentrations of metal solution. Decreasing or increasing the concentration of the metal solution resulted in a corresponding proportional response of metal binding. Following immobilisation onto wool, oxidation of the system by 6% H2O2 resulted in a reduced binding of 24% for Cu, 25% for Co, 27% for Ni, and 93% for Cd relative to unoxidised THP immobilised onto wool.\n\nAdditional modification of the THP-wool systems via reaction with amino acids and other related compounds overall did not appear to enhance the metal binding capacity relative to the unmodified THP-wool system. The only modified THP-wool system that showed either retention or an increase in metal binding capacity for all metals analysed was that of 2-aminopyridine, followed by oxidation with H₂O₂.
A randomized study of temozolomide (TMX) alone, with interferon-alpha (TMZ-IFN) or with thalidomide (TMZ-THL) in metastatic malignant melanoma (MMM) (2002)

38th Annual Meeting of the American Society of Clinical Oncology; 18-21 May 2002; Orlando, Florida, USA
Tumor dormancy and cell signaling. II. Antibody as an agonist in inducing dormancy of a B cell lymphoma in SCID mice. (1995)

Tumor dormancy can be induced in a murine B cell lymphoma (BCL1) by immunizing BALB/c mice with the tumor immunoglobulin (Ig) before tumor cell challenge. In this report, we have investigated the immunological and cellular mechanisms underlying the induction of dormancy. BCL1 tumor cells were injected into SCID mice passively immunized with antibody against different epitopes on IgM or IgD with or without idiotype (Id)-immune T lymphocytes. Results indicate that antibody to IgM is sufficient to induce a state of dormancy. Antibodies against other cell surface molecules including IgD and CD44 (Pgp1) had no effect on tumor growth. Id-immune T cells by themselves also had no effect on tumor growth in SCID mice. However, simultaneous transfer of anti-Id and Id-immune T cells enhanced both the induction and duration of the dormant state. In vitro studies indicated that antibody to IgM induced apoptosis within several hours and cell cycle arrest by 24 h. Hyper cross-linking increased apoptosis. The Fc gamma RII receptor played little or no role in the negative signaling. Antibodies that did not negatively signal in vitro did not induce dormancy in vivo. The results suggest that anti-IgM plays a decisive role in inducing tumor dormancy to BCL1 by acting as an agonist of IgM-mediated signal transduction pathways.
Dynamic shape measurement system for laser materials processing (2003)

We describe a laser-based profilometry system that demon- strates high-resolution, dynamic surface height measurements in hostile conditions. The robust system measures transient distortions of continu- ous surfaces under the conditions of high stray light and mechanical disturbances that are typically found in laser drilling and welding. A co- herent fringe pattern is projected onto the object surface using a binary phase grating interferometer. A charge-coupled device (CCD) camera fitted with a narrow-bandpass filter, centered on the optical wavelength of the projected fringes, records images of the illuminated workpiece while rejecting unwanted light from the high-power processing laser. The fringe pattern in each image is analyzed by the Fourier transform method, en- abling dynamic shape measurement at the camera frame rate. The fringe order is identified uniquely by the dynamic projection of a laser spot aligned with a single fringe. An in-situ calibration produces height maps that are corrected for perspective and lens distortion errors. The unique measurement capability of the system has enabled the first dy- namic shape measurements to be made during laser forming. Results are presented for the laser forming of 80380 mm titanium alloy coupons, over which area a height accuracy of 612 mm was achieved. © 2003
Nerve growth factor is a potent inducer of proliferation and neuronal differentiation for adult rat chromaffin cells in vitro (1993)

Adult rat chromaffin cells in vitro show a large proliferative response to NGF, followed by neuronal differentiation. Infection of replicating chromaffin cells with a retrovirus carrying the Escherichia coli beta-galactosidase (beta-gal) gene demonstrates beta-gal expression in cells that continue to multiply, that differentiate into neurons, and that become static. The effects of NGF on proliferation and differentiation are abolished by the protein kinase inhibitors K252a and staurosporine, and by cholera toxin, an activator of adenylate cyclase. They are diminished, but not abolished, by high concentrations of dexamethasone. Both cholera toxin alone and phorbol myristate acetate (PMA), an activator of protein kinase C, elicit small and inconsistent mitogenic responses. The responses to PMA cannot be shown to be additive with the effects of NGF. NGF is a known mitogen and neuritogen for chromaffin cells from neonatal rats, but has not previously been believed to affect similarly chromaffin cells from adults. The present findings suggest that portions of NGF signaling pathways might continue to be involved in regulating proliferation of adult rat chromaffin cells in vivo, and might be constitutively activated in PC12 cells and other adrenal medullary tumors. They further suggest that rat chromaffin cells might be propagated in vitro to obtain large numbers of sympathetic neurons expressing normal or exogenous genes.
Evaluation of a new agar in Uricult-Trio for rapid detection of Escherichia coli in urine (1995)

A new commercial agar (Uricult-Trio) with 8-hydroxyquinoline-beta-glucuronide was used to assess 2,536 uropathogens for beta-glucuronidase activity typical of Escherichia coli. Included in the study were 1,807 strains of the family Enterobacteriaceae, 284 strains of nonfermentative bacilli, 345 strains of gram-positive cocci, and 100 yeast strains. In identifying E. coli, the test agar gave a sensitivity of 95.5% and a specificity of 97.2%. Fifty E. coli isolates gave negative reactions; 31 non-E. coli strains produced black colonies characteristic of E. coli. No growth of gram-positive cocci and no false-positive reactions from yeasts were observed. The recovery rate for E. coli on this agar was at least 10% higher than that on blood agar.
Development of Service Robot System With Multiple Human User Interface (2007)

Interactive human user interfaces are indispensability because robot has not enough capability in recognition and judgment in performing a service task at facilities or at home. We have been developing a network distributed Human-Assistance Robotic System in order to improve care cost and the QoL (Quality of Life) of elderly people in the population-aging society. Many elderly persons with some chronic disease give up independent living because of difficulty in moving their body to take something such as operating objects in a refrigerator. Implementation of human-assist robotic system enables elderly or disabled people in need for support and care to live independently in their accustomed home environments as long as they wish. This not only fulfils their desire for independence and autonomy, it also helps to improve the costs for the individual treatment. Many service robotic systems have been developed for the Web (World Wide Web) in recent past, as the Internet is low cost and widely available. Schulz et al. (Schulz et al, 2000) and Maeyama Lung N. et al developed an Internet-based robotic system that allows the user to control a robot arm with five degrees of freedom in performing the tedious household task of sorting laundry Coristine et al. developed PumaPaint Project that is an online robot that allows World Wide Web users to remotely create original artwork. This site had thousands of users who consider it entertaining Our HARSP (Human-Assistance Robotic System Project) project consists on developing a Human-Assistance Robotic distributed System in order to improve care cost and the QoL of the elderly people in the population-aging society The proposed system has the potential to provide elderly persons local services in: a) Intelligent reminding: remind elderly persons about important activities such as taking medical, eating meals, visiting the bathroom, or scheduling medical appointments. b) Data collection and surveillance: robot can assist the aged or disabled in systematic data collection. Robotic systems may be soon able to inform human caregivers for assistance if they detect that an elderly person has fallen or the other emergency. c) Daily services: many elderly persons with some chronic disease give up independent living because of difficulty in moving their body to take something such as operating
A 3.3V, 1W GaAs One-Chip Power Amplifier MMIC for Cellular Phones (1994)

A 900-MHz-band 1W one-chip power amplifier MMIC, which operates at the low-supply voltage of 3.3 V and includes all bias and output matching circuits, has been developed for cellular phones. It is capable of delivering output power over 1.1 W with a power added efficiency of 43% at 3.3 V. With its extremely small chip size of 2.5 mm × 3.48 mm, it is less than one fifth the size of previously reported multi-chip ICs (MCICs). This new MMIC, the characteristics of which are compared with those of the existing MCICs, can be expected to contribute to the realization of smaller, lighter-weight cellular phones.
Green Light Emitting Diode Irradiation Enhances Fibroblast Growth Impaired by High Glucose Level (2005)

According to these results, the effectiveness of green LED irradiation on fibroblasts in hyperglycemic circumstances is established. Future in vivo investigation would be worthwhile to investigate whether there are equivalent positive results in diabetic patients.
Bank of nonlinear observers for the detection of multiple leaks in a pipeline (2002)

Extends a procedure for multiple leaks detection in a pipeline assuming a linear model to the nonlinear case. The residual generation problem is tackled in two parts. First, the nonlinear subsystem that is only decoupled from one leak and is coupled to the rest of the considered leaks is obtained. Since this subsystem for each leak satisfies a triangular form, the second part of the procedure involves the design of a set of nonlinear observers to generate the residuals which are sensitive to the leaks set. The procedure is validated taking real data of a water pilot pipeline 132mts long.
Efficient Polling Schemes for Bluetooth Picocells Revisited (2004)

The performance of asynchronous data traffic in Bluetooth piconets is very much dependent on the choice of the polling scheme. In this paper we consider the problem of designing efficient and fair, yet simple to implement, polling schemes that would achieve best performance (i.e., the lowest end-to-end packet delay) under TCP traffic. A number of such schemes are described and their performance is compared against some benchmark schemesderived from the known results for polling systems.