gebhart/patrepeval huggingface dataset:
Toward an Historical Understanding of Industrial Relations Theory in Canada (2005)

In linking the discontinuities in the development of industrial relations theory in Canada with succeeding historical phases in the evolution of Canadian industrial relations, this article argues that an understanding of industrial relations theory must be historically grounded. It identifies four phases of theoretical development and suggests that the hold of Systems theory on the discipline should be understood as the product of a specific historical period which is now giving way to the emergence of new approaches.
Editorial vol. 12 n.1 (2009)

Estamos disponibilizando aos leitores o novo numero do Contabilidade, Gestao e Governanca (CGG), periodico que sucede a UnB Contabil. Alem da mudanca do nome, o CGG tambem muda seu escopo e sua base de apoio. Em lugar de artigos limitados a area contabil, o CGG tambem ira contemplar as areas correlatas de gestao e governanca. Isto e coerente com a proposta critica e interdisciplinar que sempre norteou as edicoes anteriores da UnB Contabil, do qual fui o seu primeiro editor. Com o CGG estamos firmando uma parceira valiosa com o Programa de Pos-graduacao em Administracao, da Universidade de Brasilia. O objetivo destas alteracoes e melhorar cada vez mais a qualidade do nosso periodico.
Inhibition of leukemic HL60 cell growth by transferrin-gallium: effects on ribonucleotide reductase and demonstration of drug synergy with hydroxyurea [see comments] (1988)

Cellular requirements for iron during DNA synthesis are related to the increased activity of the iron-containing M2 subunit of ribonucleotide reductase, the enzyme responsible for the reduction of ribonucleotides to deoxyribonucleotides. We have previously shown that transferrin-gallium (Tf-Ga) inhibits cellular iron incorporation. In the present study, Tf-Ga-induced inhibition of HL60 cell growth and upregulation of Tf receptor density was reversed with hemin. Cells exposed to 2 mumol/L Tf-Ga for six hours or longer displayed a diminution in the electron spin resonance (ESR) spectroscopy signal of the tyrosyl radical of the M2 subunit of ribonucleotide reductase. The effect of Tf-Ga on the ESR signal was reversed by hemin. Tf-Ga decreased the incorporation of 14C-adenosine into DNA and decreased intracellular deoxyribonucleotide pools, with the maximum diminution seen in deoxyadenosine triphosphate (dATP) and deoxycytidine triphosphate (dCTP) pools. Exposure of cells to combinations of Tf-Ga and hydroxyurea (a known inhibitor of ribonucleotide reductase) resulted in a marked inhibition of cell growth that was consistent with drug synergy. Our studies suggest that Tf-Ga inhibits DNA synthesis through action on the M2 subunit of ribonucleotide reductase and that combinations of Ga and hydroxyurea should be further evaluated in in vivo tumor models.
Proyectos de Taller. Visión Prospectiva Socio-Turística / Concurso Convive (2018)

?Como incentivar a traves de un proyecto arquitectonico las diferentes dinamicas sociales propias del municipio de Turbo Antioquia, integrandolo a la region y al medio ambiente?
CD150 (SLAM) Is a Receptor for Measles Virus but Is Not Involved in Viral Contact-Mediated Proliferation Inhibition (2001)

Measles virus (MV) interacts with cellular receptors on the surface of peripheral blood lymphocytes (PBL) which mediate virus binding and uptake. Simultaneously, the direct contact of the viral glycoproteins with the cell surface induces a negative signal blocking progression to the S phase of the cell cycle, resulting in a pronounced proliferation inhibition. We selected a monoclonal antibody (MAb 5C6) directed to the surface of highly MV-susceptible B cells (B95a), which inhibits binding to and infection of cells with MV wild-type and vaccine strains. By screening a retroviral cDNA library from human splenocytes (ViraPort; Stratagene) with this antibody, we cloned and identified the recognized molecule as signaling lymphocytic activation molecule (SLAM; CD150), which is identical to the MV receptor recently found by H. Tatsuo et al. (Nature 406:893-897, 2000). After infection of cells, and after surface contact with MV envelope proteins, SLAM is downregulated from the cell surface of activated PBL and cell lines. Although anti-SLAM and/or anti-CD46 antibodies block virus binding, they do not interfere with the contact-mediated proliferation inhibition. In addition, the cell-type-specific expression of SLAM does not correlate with the sensitivity of cells for proliferation inhibition. The data indicate that proliferation inhibition induced by MV contact is independent of the presence or absence of the virus-binding receptors SLAM and CD46.
Theoretical basis for intrusion detection (2005)

Intrusion detection has become an indispensable defense line in the information security infrastructure. However, every intrusion detection approach has been limited by their problems: signature-based intrusion detection can identify the known intrusions but cannot detect the novel intrusions, anomaly-based intrusion detection has the potential to detect all intrusions but has the limitation of a higher false alarm rate. For this reason, most existing intrusion detection techniques have not met the requirements for practical deployment. In this paper, the authors proposed a theoretical basis for intrusion detection to argue about their principles and to analyze the existing problems for intrusion detection in a quantified manner. The root causes of these problems are identified as model inaccuracy and model incompleteness as well as the distinguishability lack in the features utilized. In addition, it is also found that static analysis (Wagner, et al., 2001), with a properly selected feature vector, is a promising intrusion detection technique in principle because it can avoid the quality issue of its behavior models.
Intensive Review of Internal Medicine (1989)

Intensive review of internal medicine , Intensive review of internal medicine , کتابخانه مرکزی دانشگاه علوم پزشکی ایران
Integrated system of optical sensors for plasma monitoring and plasma process control (1994)

Real-time plasma etch process monitoring, based on sensors which measure plasma properties which directly relate to the desired wafer features, is critical to the future competitiveness of the U.S. microelectronics industry. This study reports work developing new optical sensors which would serve as a feedback loop for plasma process control by researchers at the University of New Mexico (UNM). The aim of the research, funded by the industry/government consortium known as SEMATECH, is to create a nonperturbing sensor which exploits the information on process results (e.g. etch rate, uniformity, selectivity, etc.) present in plasma optical emission spectra. Both continuing work at UNM and new work at Lam Research Corp. are presented.
Large-Scale Information Extraction from Textual Definitions through Deep Syntactic and Semantic Analysis (2015)

We present DefIE, an approach to large-scale Information Extraction (IE) based on a syntactic-semantic analysis of textual definitions. Given a large corpus of definitions we leverage syntactic dependencies to reduce data sparsity, then disambiguate the arguments and content words of the relation strings, and finally exploit the resulting information to organize the acquired relations hierarchically. The output of DefIE is a high-quality knowledge base consisting of several million automatically acquired semantic relations.
Determination of sulfur dioxide in ambient air by a computer-controlled thermodenuder system (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDetermination of sulfur dioxide in ambient air by a computer-controlled thermodenuder systemJakob. Slanina, Menno P. Keuken, and Carlo A. M. SchoonebeekCite this: Anal. Chem. 1987, 59, 23, 2764–2766Publication Date (Print):December 1, 1987Publication History Published online1 May 2002Published inissue 1 December 1987https://pubs.acs.org/doi/10.1021/ac00150a008https://doi.org/10.1021/ac00150a008research-articleACS PublicationsRequest reuse permissionsArticle Views94Altmetric-Citations11LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Correction of renal tubular acidosis in carbonic anhydrase II-deficient mice with gene therapy. (1998)

Carbonic anhydrase II (CAII) deficiency in humans is associated with a syndrome of renal tubular acidosis, osteopetrosis, and cerebral calcification. A strain of mice of CAII deficiency due to a point mutation also manifests renal tubular acidosis. We report here that retrograde injection of cationic liposome complexed with a CAII chimeric gene, using a cytomegalovirus (CMV) promoter/enhancer as an expression cassette to drive human CAII cDNA, into the renal pelvis of CAII-deficient mice results in expression of CAII in the kidney. The levels of both the CAII gene and its corresponding mRNA were highest by day 3 after treatment, diminishing thereafter, but remaining detectable by 1 mo. After gene therapy, CAII-deficient mice restored the ability to acidify urine after oral administration of ammonium chloride. The ability to acidify urine was maintained at 3 wk after gene therapy, and was eventually lost by 6 wk. Immunohistochemistry studies using anti-CAII antibodies showed that CAII was expressed in tubular cells of the outer medulla and corticomedullary junction. The gene therapy was not associated with nephrotoxicity as assessed by blood urea nitrogen levels and renal histology. To our knowledge, this is the first successful gene therapy of a genetic renal disease. Our results demonstrate the potential of gene therapy as a novel treatment for hereditary renal tubular defects.
Biodiesel biorefinery: opportunities and challenges for microbial production of fuels and chemicals from glycerol waste (2012)

The considerable increase in biodiesel production worldwide in the last 5 years resulted in a stoichiometric increased coproduction of crude glycerol. As an excess of crude glycerol has been produced, its value on market was reduced and it is becoming a "waste-stream" instead of a valuable "coproduct". The development of biorefineries, i.e. production of chemicals and power integrated with conversion processes of biomass into biofuels, has been singled out as a way to achieve economically viable production chains, valorize residues and coproducts, and reduce industrial waste disposal. In this sense, several alternatives aimed at the use of crude glycerol to produce fuels and chemicals by microbial fermentation have been evaluated. This review summarizes different strategies employed to produce biofuels and chemicals (1,3-propanediol, 2,3-butanediol, ethanol, n-butanol, organic acids, polyols and others) by microbial fermentation of glycerol. Initially, the industrial use of each chemical is briefly presented; then we systematically summarize and discuss the different strategies to produce each chemical, including selection and genetic engineering of producers, and optimization of process conditions to improve yield and productivity. Finally, the impact of the developments obtained until now are placed in perspective and opportunities and challenges for using crude glycerol to the development of biodiesel-based biorefineries are considered. In conclusion, the microbial fermentation of glycerol represents a remarkable alternative to add value to the biodiesel production chain helping the development of biorefineries, which will allow this biofuel to be more competitive.
A Geometric Singular Perturbation Analysis of Detonation and Deflagration Waves (1993)

The existence of steady plane wave solutions of the Navier-Stokes equations for a reacting gas is analyzed. Under the assumption of an ignition temperature the existence of detonation and deflagration waves close to the corresponding waves of the ZND-model is proved in the limit of small viscosity, heat conductivity, and diffusion. The method is constructive, since the classical solutions of the ZND-model serve as singular solutions in the context of geometric singular perturbation theory. The singular solutions consist of orbits on which the dynamics are slow-driven by chemical reaction and of orbits on which the dynamics are fast-driven by gasdynamic shocks. The approach is geometric and leads to a clear, complete picture of the existence, structure, and asymptotic behavior of detonation and deflagration waves.
Auditory Occupancy Grids with a Mobile Robot (2012)

This paper presents the use of auditory occupancy grids (AOGs) for mapping of a mobile robot’s acoustic environment. An AOG is a probabilistic map of sound source locations built from multiple measurements using techniques from both probabilistic robotics and sound localization. The mapping is simulated, tested for ro-bustness, and then successfully implemented on a three-microphone mobile robot with four sound sources. Using the robot’s inherent advantage of mobility, the AOG cor-rectly locates the sound sources from only nine measure-ments. The resulting map is then used to intelligently po-sition the robot within the environment and to maintain auditory contact with a moving target.
Cost analysis of NOx control alternatives for stationary gas turbines (1999)

The use of stationary gas turbines for power generation has been growing rapidly with continuing trends predicted well into the future. Factors that are contributing to this growth include advances in turbine technology, operating and siting flexibility and low capital cost. Restructuring of the electric utility industry will provide new opportunities for on-site generation. In a competitive market, it maybe more cost effective to install small distributed generation units (like gas turbines) within the grid rather than constructing large power plants in remote locations with extensive transmission and distribution systems. For the customer, on-site generation will provide added reliability and leverage over the cost of purchased power One of the key issues that is addressed in virtually every gas turbine application is emissions, particularly NO{sub x} emissions. Decades of research and development have significantly reduced the NO{sub x} levels emitted from gas turbines from uncontrolled levels. Emission control technologies are continuing to evolve with older technologies being gradually phased-out while new technologies are being developed and commercialized. The objective of this study is to determine and compare the cost of NO{sub x} control technologies for three size ranges of stationary gas turbines: 5 MW, 25 MW and 150 MW. The purpose of the comparison is to evaluate the cost effectiveness and impact of each control technology as a function of turbine size. The NO{sub x} control technologies evaluated in this study include: Lean premix combustion, also known as dry low NO{sub x} (DLN) combustion; Catalytic combustion; Water/steam injection; Selective catalytic reduction (SCR)--low temperature, conventional, high temperature; and SCONO{sub x}{trademark}.
Inflammation at birth and the insulin‐like growth factor system in very preterm infants (2007)

Pro-inflammation at birth is associated with changes in the IGF-system. This may be of importance for development of brain damage in preterm infants.
Macrocell radio wave propagation prediction using an artificial neural network (2005)

This paper presents and evaluates an artificial neural network model used for macrocell radio wave propagation prediction. Measurement data obtained by utilising the IS-95 pilot signal of a commercial CDMA mobile network in rural Australia is used to train the model. Simple models requiring only small amounts of training data have been used for the propagation predictions. The neural network inputs are chosen to be distance to base station and parameters easily obtained from terrain path profiles. It is concluded that a path loss predictor based on a simple neuron model generalises relatively well and requires only a few iterations in batch mode, using the Levenberg-Marquardt algorithm and early stopping, to converge to its optimum. The path loss prediction results using the neural models are favourably compared to the new semi-terrain based propagation model recommendation ITU-R P.1546, and traditional models, such as the Hata model. The statistical analysis shows that the simplistic artificial neural network approach is an alternative to traditional propagation models regarding accuracy, complexity and prediction time.
Luminescence from Surfactant-Free ZnO Quantum Dots Prepared by Laser Ablation in Liquid (2007)

Highly transparent, luminescent and biocompatible ZnO quantum dots were prepared in water, methanol, and ethanol using\nliquid-phase pulsed laser ablation technique without using any surfactant. Transmission electron microscopy analysis confirmed\nthe formation of good crystalline ZnO quantum dots with a uniform size distribution of 7 nm. The emission wavelength could be\nvaried by varying the native defect chemistry of ZnO quantum dots and the laser fluence. Highly luminescent nontoxic ZnO\nquantum dots have exciting application potential as florescent probes in biomedical applications.
Degradation-free Ta/sub 2/O/sub 5/ capacitor after BPSG reflow at 850°C for high density DRAMs (2002)

The thermal degradation of the Ta/sub 2/O/sub 5/ capacitor during BPSG reflow has been studied. The cause of deterioration of Ta/sub 2/O/sub 5/ with the TiN top electrode was found to be the oxidation of TiN. By inserting poly-Si between TiN and BPSG to suppress oxidation, the low leakage current level was maintained after BPSG reflow at 850/spl deg/C. The Ta/sub 2/O/sub 5/ capacitor with the TiN/poly-Si top electrode was integrated into 64 Mbit DRAMs and excellent leakage current characteristics were obtained.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
A Review on: Preservatives used in Pharmaceuticals and impacts on Health (2016)

For several decades pharmacist have been aware of the need to protect their products against microbial contamination but it is only during the last one or perhaps two decades the serious thought of has been applied to the science of preservation. Preservatives are commonly used as additives in pharmaceutical products, food and cosmetics. Some of the liquid preparations are susceptible to microbial contamination because of the nature of ingredients present in it. Such preparations are protected by preservatives which avoids degradation and alteration of the product. A preservative is a natural or synthetic chemical added to various products which helps to prevent microbial decomposition. Present article deals with the study of ideal properties, classification, mechanism of action, Pharmaceutical applications and its impact on health of various preservatives used in pharmaceuticals.
A COMPREHENSIVE LEASE/PURCHASE MODEL (1994)

ABSTRACT This study presents comprehensive formal expressions for the net advantage of leasing over buying, Δ, in the presence of all of the following parameters of the leasing issue: intertemporal changes in tax rates, loan repayment schedule, financial leverage, scrap value and inflation. The leasing model derived in this study implies the following results. When the tax rate to the lessor (Tr ) is higher than that to the lessee (Te,), Δ increases with the present value of both depreciation and interest deductions. Interestingly, Δ can.also be positive even if Te > T Tr. The existence of positive salvage value increases Δ even higher, independently of the depreciation and loan repayment schedules. The financial leverage has a positive impact on Δ, while the impact of inflation on Δ depends on both the depreciation and loan repayment schedule as well as on the inflation level itself. A discount-rate asymmetry also has an impact on Δ. Specifically, Δ is positive (negative) as the discount rate of the lessor is lower (higher) than the discount rate of the lessee. Finally, when intertemporal differences in tax rate exist either to the lessor and/or to the lessee, Δ increases.
An advanced contrast enhancement using partially overlapped sub-block histogram equalization (2002)

In this paper, an advanced histogram equalization algorithm for contrast enhancement is presented. Histogram equalization is the most popular algorithm for contrast enhancement due to its effectiveness and simplicity. Global histogram equalization is simple and fast, but its contrast enhancement power is relatively low. Local histogram equalization, on the other hand, can enhance overall contrast more effectively, but the computational complexity is very high due to its fully overlapped sub-blocks. For high contrast and simple calculation, a low pass filter type mask is proposed. The low pass filter type mask is realized by partially overlapped sub-block histogram equalization (POSHE). With the proposed method, the computation overhead is reduced by a factor of about one hundred compared to that of local histogram equalization while still achieving high contrast.
Quantitative immunolocalization of mu opioid receptors: regulation by naltrexone (1998)

The present study utilized a newly developed quantitative immunohistochemical assay to measure changes in mu opioid receptor abundance following chronic administration of the opioid receptor antagonist naltrexone. These data were compared with those obtained from mu receptor radioligand binding on adjacent tissue sections, in order to determine whether the characteristic antagonist-induced increase in radioligand binding is due to an increase in the total number of mu receptors and/or to an increase in the proportion of receptors that are in an active binding conformation in the absence of a change in the total number of receptors. Adult male Sprague-Dawley rats were administered naltrexone, 7-8 mg/kg per day, or saline continuously for seven days by osmotic minipumps, after which time their brains were processed for immunohistochemistry and receptor autoradiography on adjacent fresh frozen tissue sections. Semiquantitative immunohistochemistry was performed using a radiolabelled secondary antibody for autoradiographic determination and a set of radioactive standards. Results demonstrate an overall concordance between the distribution of mu opioid receptors as measured by the two different methods with a few exceptions. Following naltrexone administration, mu receptor immunoreactivity was significantly higher in the amygdala, thalamus, hippocampus, and interpeduncular nucleus as compared with the saline-treated control animals. [3H]D-Ala2,N-Me-Phe4,Gly-ol5-enkephalin binding to mu opioid receptors was significantly higher in the globus pallidus, amygdala, thalamus, hypothalamus, hippocampus, substantia nigra, ventral tegmental area, central gray, and interpeduncular nucleus of the naltrexone-treated rats. These findings indicate that in some brain regions chronic naltrexone exposure increases the total number of mu opioid receptors, while in other regions there is an increase in the percent of active receptors without an observable change in the total number of receptors. Quantitative receptor immunodetection together with ligand autoradiography provides a new approach for investigating the regulation of mu opioid receptors on tissue sections.