gebhart/patrepeval huggingface dataset:
Green Synthesis of Gold Nanoparticles Using Glycerol-Incorporated Nanosized Liposomes (2011)

There has been enormous interest in the last decade in development methods for the inorganic synthesis of metallic nanoparticles of desired sizes and shapes because of their unique properties and extensive applications in catalysis, electronics, plasmonics, and sensing. Here we report on an environmentally friendly, one-pot synthesis of metallic nanoparticles, which avoids the use of organic solvents and requires mild experimental conditions. The developed method uses liposomes as nanoreactors, where the liposomes were prepared by encapsulating chloroauric acid and exploited the use of glycerol, incorporated within the lipid bilayer as well as in its hydrophilic core, as a reducing agent for the controlled preparation of highly homogeneous populations of gold nanoparticles. The effects of temperature, the presence of a capping agent, and the concentration of glycerol on the size and homogeneity of the nanoparticles formed were investigated and compared with solution-based glycerol-mediated nanoparticle synthesis. Well-distributed gold nanoparticle populations in the range of 2-8 nm were prepared in the designed liposomal nanoreactor with a clear dependence of the size on the concentration of glycerol, the temperature, and the presence of a capping agent whereas large, heterogeneous populations of nanoparticles with amorphous shapes were obtained in the absence of liposomes. The particle morphology and sizes were analyzed using transmission electron microscopy imaging, and the liposome size was measured using photon correlation spectroscopy.
Glucose Inhibits Development of Hamster 8-Cell Embryos in Vitro1 (1989)

Relative preferences of energy substrates (glucose, pyruvate, and lactate) for in vitro development of hamster 8-cell embryos were investigated. Using protein-free modified Tyrode's medium (TLP-PVA) containing 10 mM lactate (L), 0.1 mM pyruvate (P), and amino acids (Phe, Ile, Met and Gln), we found that development of hamster 8-cell embryos to blastocysts was supported better in the absence of glucose than in medium containing (standard) 5 mM glucose (88.1% and 50%, respectively). Addition of even 0.25 mM glucose to the medium significantly inhibited blastocyst formation (54.1%). Medium T-PVA, containing 5 mM glucose as sole energy substrate (without pyruvate, lactate, and amino acids), very poorly supported embryo development (less than or equal to 7.9% blastocysts), but addition of 0.1 mM pyruvate enhanced blastocyst formation (52%). Elimination of pyruvate in TL-PVA medium containing 5 mM glucose and amino acids markedly reduced blastocyst formation by 4-fold (13.5%); the optimal pyruvate concentration was 0.2 mM. However, if the same medium was devoid of glucose, blastocyst formation was high both in the absence (71.1%) and presence (83.3%) of 0.1 mM pyruvate. Similarly, in glucose-free T-PVA medium, addition of either 10 mM lactate or amino acids supported 8-cell embryo development to blastocysts (61.7% and 60.5%, respectively) as opposed to 18.8% and 30.6%, respectively, in the presence of 5 mM glucose. This augmented development in the absence of glucose is suggested to the due to the efficient conversion of lactate to pyruvate and of amino acids to amphibolic intermediates and hence their utilization via the Krebs cycle.(ABSTRACT TRUNCATED AT 250 WORDS)
PORTARIA Nº 15,: DE 22 DE ABRIL DE 2004 (2004)

Disciplina o procedimento administrativo para aplicacao das sancoes previstas no artigo 26, caput, artigo 26, § 5o,e 26-A, da Lei no 8.884, de 11 de junho de 1994, no âmbito da Secretaria de Direito Economico.
Analysis of the stability and optimizing operation of the single-side-band modulator based on re-circulating frequency shifter used for the T-bit/s optical communication transmission (2010)

The stability of single-sideband (SSB) modulator based recirculating frequency shifter (RFS) is analyzed theoretically. The optimum radio frequency (RF) drive peak-to-peak voltage used to drive the modulator is studied with considering the amplified spontaneous emission (ASE) noise of optical amplifier and crosstalk so as to obtain a maximum overall effective optical signal to noise ratio (OSNR) which is defined to quantify the quality of generated tones. Small desired tones number and lower RF peak-to-peak voltage can reduce the crosstalk effectively. While the trade-off should be considered since the larger desired tones number it is, the higher optimum drive voltage should be used when the SSB-based RFS reached the maximum OSNR. The theoretical results show that the optimum operation condition is helpful to improve the performance of RFS which can be a good application for the T-bit/s optical transmission in practice.
A LABORATORY AND NUMERICAL ASSESSMENT OF THE GUELPH PERMEAMETER METHOD (1987)

The Guelph permeameter method was assessed using laboratory and numerical procedures. Sand tank experiments using air-dry Caledon sand confirmed the theoretical basis of the method, that flow out of a small, uncased well into unsaturated soil rapidly decreases to a steady rate (Qs) and involves a finite wetting region. Saturated flow and field-saturated flow experiments found that the truly saturated hydraulic conductivity Ks, (no entrapped air present) for repacked Caledon sand was approximately a factor of 3.5 greater than the corresponding field-saturated hydraulic conductivity, Kfs (entrapped air present). Horizontal infiltration experiments, which were conducted primarily to measure the metric flux potential (φm) of air-dry Caledon sand, suggested that the discrepancy between Ks and Kfs was the result of an approximate 17% undersaturation due to the entrapped air. Application of the Laplace (K1fs) and Gardner (φ1m) analyses to the sand tank results yields approximately a factor of 12 overestimate of Kfs by K1fs, but only about a 10% overestimate of φm by φlm. This indicates that capillarity (parameterized by φm) dominated field-saturated flow (parameterized by Kfs,) in the sand tank experiments. A numerical model based on Richards' equation was able to accurately simulate the sand tank results using Kfs from the field-saturated flow experiments and φm from the horizontal infiltration experiments. Qs and C values were predicted within ≤2% of the experimental values. The numerical results suggest that Kfs, (rather than Ks) and φm are appropriate parameters for describing flow out of a well into unsaturated, structureless soil; and that the integrally correct representation of the K(ψ) relationship provided by the exponential form of Gardner (1958) and by the method of calculating α, can be adequate for describing both transient and steady flow. A three-member family of numerically derived, unsaturated flow C value curves representing “sand,” “loam and structured clay,” and “unstructured clay” appears to compensate adequately for the neglect of the gravity-capillarity interaction in the Guelph permeameter equations. Sensitivity analyses indicate that for the Richards analysis the correct choice of C value curve from the three-member family of curves is least critical for the hydraulic parameter of primary importance in describing the flow. When field-saturated flow is the dominant component of flow out of the well, the error induced in Kfs, by incorrect choice of C is on the order of ≤30% for the flow conditions analyzed. When capillarity is the dominant component of flow out of the well, the error induced in φm by incorrect choice of C is on the order of ≤10% for the flow conditions analyzed. The sensitivity analyses also confirm that the Laplace analysis is reasonably accurate when the field-saturated component of flow dominates, and that the Gardner analysis is reasonably accurate when the capillarity component of flow dominates.
Mobile, High-Wind, Balloon-Launching Apparatus (1989)

In order to place instruments for measuring meteorological and electrical parameters into thunderstorms, we developed an inexpensive apparatus that allows us to inflate, transport, and launch balloons in high winds. The launching apparatus is a cylinder of “bubble” plastic that is made by joining the sides of the cylinder together with a VELCRO ”rip strip.” We launch a balloon by pulling the rip strip rapidly. This allows the balloon to pop upward into the ambient low-level wind and carry its instrumentation aloft. We construct different-sized launch tubes to accommodate particular sizes of balloons and have successfully launched balloons in winds of about 20 m s−1.
Preparing precision ultrafine sapphire surfaces: a practical method (1986)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text Eberhard Prochnow and David F. Edwards, "Preparing precision ultrafine sapphire surfaces: a practical method," Appl. Opt. 25, 2639-2640 (1986) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
[Effect of desflurane on quantitative electroencephalogram and hemodynamics]. (1999)

To evaluate the feasibility of monitoring depth of desflurane anesthesia by quantitative electroencephalogram(QEEG) and hemodynamics, eight ASA I-II patients were studied. Anesthesia was induced by propofol and vecuronium, after tracheal intubation and the lungs were ventilated with desflurane in oxygen. The results showed that desflurane significantly reduced bispectral index(BI), 95% spectral edge frequency(SEF) and median frequency(MF) in a negative linear dose-related manner. When the end-tidal desflurane concentration reached 1.5 MAC, mean artery pressure(MAP) was decreased significantly, and heart rate(HR) increased by 14.5% (but there was no statistic significance), compared with pre-anesthesia. The results suggest that QEEG can be used to monitor depth of desflurane anesthesia, but MAP and HR are not the ideal monitoring indices during desflurane anesthesia.
Pi Shape Slot Loaded Patch Antenna for Wi-Max Applications (2011)

Microstrip patch antennas are strong candidates for use in many wireless communication applications. This paper proposes the use of patch antenna with pi-shaped slot to achieve dual band operation in WiMAX standard. A thick substrate helps broaden the bandwidths at two resonant frequencies. The slot loaded patch antenna resonates at 2.54 GHz and 3.45 GHz frequencies. It has been developed to be used in future Wi-max technology. The simulated bandwidths are 4.01% and 11% at 2.54 GHz and 3.45 GHz respectively. The return losses for these dual bands are -20dB and -16.77 dB respectively.
Adaptive neuro-fuzzy predictive control for design of adaptive cruise control system (2017)

Proliferation of the number of vehicles is one of the main causes of traffic congestion, accidents, energy waste and environmental pollution. Recently, several intelligent applications are equipped in modern vehicles such as advanced driver assistance systems (ADAS), especially an adaptive cruise control (ACC) system which was successfully implemented on some luxury cars and still remains to be an interesting topic of research. An adaptive neuro-fuzzy predictive control (ANFPC) is proposed in designing of ACC system in this paper. By controlling the ACC vehicle through the throttle force or brakes, the ACC vehicle follows its predecessor and maintains the safe distance with the minimized tracking error. In the ANFPC scheme, a Takagi-Sugeno (T-S) fuzzy model is utilized to approximate the preceding vehicle model and then the predicted state sequence of the preceding vehicle is obtained. More importantly, the predictive control law is derived by a fuzzy neural networks (FNNs) approach. Simulation results demonstrate that the proposed ANFPC can achieve better performance than other methods in terms of safety, comfort and fuel consumption, simultaneously.
The ADM-Aeolus Mission (2006)

The Atmospheric Dynamics Mission ADM-Aeolus will make direct measurements of global wind-fields. The aim is to provide global observations of wind profiles with a vertical resolution that will satisfy the requirements of the World Meteorological Organization. The only payload is the Atmospheric Laser Doppler Instrument (ALADIN), a direct detection Doppler lidar operating in the UV. It will determine the wind velocity component normal to the satellite velocity vector. These wind profile measurements will be assimilated into numerical forecasting models to improve the quality of the global three-dimensional wind fields. To make full use of the data, the global wind profile data must be made available to the weather prediction centers in near real time. EADS-Astrium (UK and France) and their subcontractors develop Aeolus and ALADIN. Most subsystems have been completed, and the assembly of the Flight Model is well under way, and proceeding to a launch envisaged in late 2008. Details of ALADIN and several of its subsystems are reported in various papers of this conference.
Toxins induce ‘malaise’ behaviour in the honeybee (Apis mellifera) (2014)

To avoid poisoning and death when toxins are ingested, the body responds with a suite of physiological detoxification mechanisms accompanied by behaviours that in mammals often include vomiting, nausea, and lethargy. Few studies have characterised whether insects exhibit characteristic 'malaise-like' behaviours in response to intoxication. Here, we used the honeybee to investigate how intoxication produced by injection or ingestion with three toxins with different pharmacological modes of action quinine, amygdalin, and lithium chloride affected behaviour. We found that toxin-induced changes in behaviour were best characterised by more time spent grooming. Bees also had difficulty performing the righting reflex and exhibited specific toxin-induced behaviours such as abdomen dragging and curling up. The expression of these behaviours also depended on whether a toxin had been injected or ingested. When toxins were ingested, they were least 10 times less concentrated in the haemolymph than in the ingested food, suggesting that their absorption through the gut is strongly regulated. Our data show that bees exhibit changes in behaviour that are characteristic of 'malaise' and suggest that physiological signalling of toxicosis is accomplished by multiple post-ingestive pathways in animals.
The fibrous zeolite erionite; its occurrence, unit cell, and structure (1959)

Summary The type locality for erionite has been identified and specimens compared with Eakle's original material. New determinations of the physical properties and a chemical analysis have been made. Correlation of X-ray powder and fibre rotation data with electron diffraction of single crystals has shown that the unit cell is hexagonal with a 13·26, c 15·12 Å., space-group P 31 c , P ¯31 c , P 6 3 mc , P ¯62 c , or P 6 3 / mmc , giving a calculated sp. Gr. of 2·07 and atomic cell contents (Ca, Mg, Na 2 , K 2 ) 4·5 Al 9 Si 27 O 72 .27H 2 O. A structure is proposed for the aluminosilicate frame, with space-group P 6 3 / mmc , which gives satisfactory correlation between observed and calculated structure factors for the X-ray fibre rotation pattern.
Preparation of Star‐Shaped ABC Copolymers of Polystyrene‐Poly(ethylene oxide)‐Polyglycidol Using Ethoxyethyl Glycidyl Ether as the Cap Molecule (2007)

Abstract The 3‐miktoarm star‐shaped ABC copolymers of polystyrene–poly(ethylene oxide)–poly(ethoxyethyl glycidyl ether) (PS‐PEO‐PEEGE) and polystyrene–poly(ethylene oxide)–polyglycidol (PS‐PEO‐PG) with low polydispersity indices (PDI ≤ 1.12) and controlled molecular weight were synthesized by a combination of anionic polymerization with ring‐opening polymerization. The polystyryl lithium (PS − Li + ) was capped by EEGE firstly to form the functionalized polystyrene (PS A ) with both an active ω ‐hydroxyl group and an ω ′‐ethoxyethyl‐protected hydroxyl group, and then the PS‐ b ‐PEO block copolymers, star(PS‐PEO‐PEEGE) and star(PS‐PEO‐PG) copolymers were obtained by the ring‐opening polymerization of EO and EEGE respectively via the variation of the functional end group, and then the hydrolysis of the ethoxyethyl group on the PEEGE arm. The obtained star copolymers and intermediates were characterized by 1 H NMR spectroscopy and SEC. magnified image
The manufacture of stainless clad steels (1991)

An overview of methods of manufacture is presented, as well as the results of laboratory experiments on the making of stainless clad steels. It is concluded that stainless clad steel can be made in South Africa with existing rolling equipment, and that good bonding between the two materials depends on clean mating surfaces, proper edge welding, and a minimum reduction of 25 per cent at a rolling temperature of 1200i?½C. In practice, a minimum reduction of 70 per cent at 1100i?½C is recommended. Suggested applications for clad steel include parts and equipment for the chemical, petrochemical, marineengineering, and mining industries, for the building sector,and for household appliances.
Über neue α.α'‐disubstituierte Azoalkane (1960)

Abstract Eine Anzahl aliphatischer α.α'‐Dichlor‐azoalkane wird beschrieben. Die Cl‐Atome dieser Verbindungen lassen sich leicht gegen nucleophile Gruppen austauschen. Mit Natriumacetat in Eisessig entstehen α.α'‐Diacetoxy‐azoalkane. Mit Alkalisalzen von Thiosäuren, Thiolen usw. bilden sich Derivate von α.α'‐Dimercapto‐azoalkanen, mit Natriumcyanid die bekannten Azonitrile. — Die UV‐Spektren zeigen ein charakteristisches Maximum um 360 mμ.
Load balancing of molecular dynamics simulation with NWChem (2001)

NWChem is a computational chemistry software suite developed for massively parallel computers in the W. R. Wiley Environmental Molecular Sciences Laboratory at the U.S. Department of Energy's Pacific Northwest National Laboratory software computational chemistry applications classical molecular dynamics quantum mechanical calculations architecture memory domain decomposition intermolecular interactions periodic atomic reassignmentsoratory. This software integrates a range of modules for computational chemistry applications, including classical molecular dynamics simulations and quantum mechanical calculations. This contribution provides details of the classical molecular dynamics module and focuses on issues related to load balancing on massively parallel computers, in particular the IBM SP™ and the Cray T3E™ as examples of distributed and shared memory massively parallel architectures. The implementation of the molecular dynamics module of NWChem is based on a domain decomposition of the chemic al system, taking advantage of the distribution of data to reduce the memory requirements and the locality of intermolecular interactions to reduce the communication requirements. This approach results in a more complex implementation because of the requirement of periodic atomic reassignments and the need for sophisticated load-balancing techniques.
Highly Multiplexed Single‐Cell In Situ Protein Analysis with Cleavable Fluorescent Antibodies (2017)

Limitations on the number of proteins that can be quantified in single cells in situ impede advances in our deep understanding of normal cell physiology and disease pathogenesis. Herein, we present a highly multiplexed single-cell in situ protein analysis approach that is based on chemically cleavable fluorescent antibodies. In this method, antibodies tethered to fluorophores through a novel azide-based cleavable linker are utilized to detect their protein targets. After fluorescence imaging and data storage, the fluorophores coupled to the antibodies are efficiently cleaved without loss of protein target antigenicity. Upon continuous cycles of target recognition, fluorescence imaging, and fluorophore cleavage, this approach has the potential to quantify over 100 different proteins in individual cells at optical resolution. This single-cell in situ protein profiling technology will have wide applications in signaling network analysis, molecular diagnosis, and cellular targeted therapies.
A new high level testability measure: description and evaluation (2002)

A high testability measure based on constraints propagation and dedicated to deterministic test of the combinational part of scannable circuits is compared to three others high level testability measures of the literature. This measure is used to guide hierarchical generation of test vectors and automatic test point insertion.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Plot Units and Narrative Summarization* (1981)

In order to summarize a story, it is necessary to access a high level analysis of the story that highlights its central concepts. A technique of memory representation based on plot units appears to provide a rich foundation for such an analysis. Plot units are conceptual structures that overlap with each other when a narrative is cohesive. When overlapping intersections between plot units are interpreted as arcs in a graph of plot units, the resulting graph encodes the plot of the story. Structural features of the graph then reveal which concepts are central to the story, and which concepts are peripheral. Plot unit analysis is currently being investigated as a processing strategy for narrative summarization by both computer simulation and psychological experiments.
Economic Issues in Farm-to-Port Grain Storage, Handling and Transport (1995)

In this paper, the literature on the economics of grain distribution systems is reviewed. The emphasis of this review is on farm to port issues and largely excludes port and shipping issues. In the first part of the paper, the discussion centres on the historical institutional environment in Australia, which was heavily regulated. The second part of the paper highlights some of the issues relating to the pricing of central grain distribution services that continue to exist even in the more competitive environment which has emerged in the 1990's. The scope for future agricultural economics research in this area is discussed.
Preformed dimeric state of the sensor protein VirA is involved in plant--Agrobacterium signal transduction. (1993)

Plant signal molecules such as acetosyringone and certain monosaccharides induce the expression of Agrobacterium tumefaciens virulence (vir) genes, which are required for the processing, transfer, and possibly integration of a piece of the bacterial plasmid DNA (T-DNA) into the plant genome. Two fo the vir genes, virA and virG, belonging to the bacterial two-component regulatory system family, control the induction of vir genes by plant signals. virA encodes a membrane-bound sensor kinase protein and virG encodes a cytoplasmic regulator protein. Although it is well established from in vitro studies that the signal transduction process involves VirA autophosphorylation and subsequent phosphate transfer to VirG, the structural state of the VirA protein involved in signal transduction is not understood. In this communication, we describe an in vivo crosslinking approach which provides physical evidence that VirA exists as a homodimer in its native configuration. The dimerization of VirA neither requires nor is stimulated by the plant signal molecule acetosyringone. We also present genetic data which support the hypothesis that VirA exists as a homodimer which is the functional state transducing the plant signal in an intersubunit mechanism. To our knowledge, this report provides the first evidence that a bacterial membrane-bound sensor kinase exists and functions as a homodimer in vivo.
320 Gbit/s soliton WDM transmission over 1300 kmwith 100 km dispersion-compensated spans of standard fibre (1997)

The authors have achieved soliton WDM transmission of 16 signals, each modulated at 20 Gbit/s, over 1300 km of standard fibre with 100 km spans using partial compensation of dispersion and its slope.