gebhart/patrepeval huggingface dataset:
A Modular Architecture for Developing Robots for Industrial Applications (2022)

This chapter is concerned with proposing ways to make feasible the use of robots in many sectors characterized by dynamic and unstructured environments. In particular, we are interested in addressing the problem through a new approach, based on modular robotics, to allow the fast deployment of robots to solve specific tasks. A series of authors have previously proposed modular architectures, albeit mostly in laboratory settings. For this reason, their designs were usually more focused on what could be built instead of what was necessary for industrial operations. The approach presented here addresses the problem the other way around. In this line, we start by defining the industrial settings the architecture is aimed at and then extract the main features that would be required from a modular robotic architecture to operate successfully in this context. Finally, a particular heterogeneous modular robotic architecture is designed from these requirements and a laboratory implementation of it is built in order to test its capabilities and show its versatility using a set of different configurations including manipulators, climbers and walkers.
Reflexões sobre a Folkcomunicação, o Ciberespaço e o contexto escolar (2008)

Este artigo propõe uma reflexão a cerca da Folkcomunicação, do Ciberespaço e sua relação no ambiente escolar. Procurou-se destacar alguns conceitos e formas de trabalho relacionados com as manifestações culturais e o uso crescente da internet , aqui definida como ambiente virtual, ou seja, ciberespaço. O texto apresenta alguns posicionamentos teóricos a fim de subsidiar algumas discussões. Acreditamos que está surgindo uma nova geração de sujeitos, cada vez mais “plugados” e distantes das tradicionais manifestações culturais, religiosas e folclóricas. Preparar a escola para desenvolver tais conteúdos poderá ser um caminho para o verdadeiro resgate de nossos valores culturais.Destaca também a importância de se buscar caminhos para potencializar o ciberespaço com um ambiente a ser trabalhado para tal resgate.
Carbohydrate Analysis by High Pressure Liquid Chromatography Using Water as the Eluent (1980)

Abstract A μ-Bondapak C-18 column separates, by reverse phase process, mono, di and oligosaccharides within 40 min when water is used as eluent. The fractionation capabilities of this column are a function of experimental conditions (temperature and flow-rate). Chromatograms showing separations obtained for different carbohydrate mixtures are presented and discussed in terms of solubility parameters.
Sum-Set Inequalities From Aligned Image Sets: Instruments for Robust GDoF Bounds (2017)

We present sum-set inequalities specialized to the generalized degrees of freedom (GDoF) framework. These are information theoretic lower bounds on the entropy of bounded density linear combinations of discrete, power-limited dependent random variables in terms of the joint entropies of arbitrary linear combinations of new random variables that are obtained by power level partitioning of the original random variables. These bounds generalize the aligned image sets approach, and are useful instruments to obtain GDoF characterizations for wireless networks, especially with multiple antenna nodes, subject to arbitrary channel strength and channel uncertainty levels. To demonstrate the utility of these bounds, we consider various examples of interference and broadcast channels for which we obtain tight GDoF characterizations with the aid of sum-set inequalities.
Thermolysis of naphthols (1981)

A significant portion of the oxygen content of native coals and of the coal-derived liquids used as process solvents during hydroliquefaction of coal is present as phenolic hydroxyl groups. Various reported phenomenological effects of the phenolic content of process solvents on liquefaction performance have been reviewed. However, attempts to rationalize these on the basis of reactions at the molecular level are hampered by lack of background data concerning the chemical behavior of phenols under conditions representative of liquefaction. The object of this study is to provide such background by examining the thermolysis of representative phenols under carefully defined conditions. This initial report describes the behavior of the isomeric naphthols at 400/sup 0/C in the absence of any purposely added reagents or catalysts. From the viewpoint of the chemistry underlying coal liquefaction, these results revealed a set of previously unrecognized thermal reactions by which phenols may be condensed to furans, be deoxygenated to arenes, and serve as hydrogen donors. These processes, the latter two generally desirable and the former one undesirable, are inherently related.
Synthesis of immunoglobulin mu chain gene products precedes synthesis of light chains during B-lymphocyte development. (1981)

Immunoglobulin (Ig) gene expression has been followed during the later stages of development of the murine fetal liver. Biosynthetic labeling and immunoprecipitation were used to isolate Ig-related polypeptides from fetal and neonatal livers. By examination of the specific immune precipitates, the earliest detectable Ig was shown to consist only of mu heavy chain. At about the time of birth, when light chain synthesis became evident, separation of surface Ig-positive cells from surface Ig-negative cells by using anti-Ig-coated dishes showed that cells lacking surface Ig (pre-B lymphocytes) synthesized only mu chains. Thus, commencement of light chain synthesis was closely coordinated with the appearance of surface Ig. Ig RNA species were examined by electrophoretic fractionation and hybridization with cloned Ig DNA sequences. The sizes and amounts of Ig mRNA were found to correlate with the pattern of mu and light chain protein biosynthesis. mu chain RNA species appeared earlier in gestation than light chain RNA did, and only after birth did light chain sequences reach levels equivalent to those of mu chain. Cell populations enriched in pre-B lymphocytes also contained an excess of mu over light chain mRNA.
Towards Batch Fabrication of Carbon Nanotube Sensors by Combining Microinjection and Dielectrophoretic Manipulation (2005)

We present the preliminary design and test results of a novel automated carbon nanotube (CNT) microinjection system for batch fabrication of a bulk multi-walled carbon nanotubes (MWNT) based sensors. This project will eventually develop an automated system to rapidly and precisely execute the AC electrophoretic manipulation of MWNT bundles on substrates that are used to fabricate nano-sensors. We have already shown that, using dielectrophoretic manipulation, CNTs were successfully and repeatably manipulated between micro-fabricated electrodes. The CNT devices were demonstrated to potentially serve as novel thermal sensors with low power consumption (~muW) and electronic circuit response of about 100 kHz in constant current mode operation. Besides, preliminary microinjection experiments were conducted which demonstrated the possibility of the automated microinjection of solution with spot size of ~200mum. Based on these experimental evidences, a feasible batch fabrication method for functional CNT sensors by using an automated injection system is under development. The system will ultimately reduce fabrication accuracy and time of nano sensing devices and potentially enable fully automated assembly of CNT and other nano-wire based devices
Anti-inflammatory Activity of Taiwan Folk Medicine "Ham-Hong-Chho" in Rats (1995)

"Ham-Hong-Chho" is a folk medicine in Taiwan, derived from the entire plants of Bidens pilosa L. var. minor (Blume) Sherff (Compositae), B. pilosa L. and B. chilensis DC. The anti-inflammatory effect of aqueous extracts of the three plants against paw edema induced by carrageenan and chronic arthritis induced by complete Freund's adjuvant were determined in rats. The results indicated that paw edema induced by carrageenan was significantly decreased by treatment with aqueous extracts (150 or 300 mg/kg) of all three plants (p < 0.05) and that the effect of Bidens pilosa var. minor was the most potent. However, only extracts (500 mg/kg) of B. pilosa L. var. minor and B. pilosa L. significantly decreased the paw edema induced by complete Freund's adjuvant (p < 0.05).
Design of a cascade refrigeration system for applications below -50°C using CO2-sublimation (2018)

Trifluoromethane (R-23) is currently the most widely used non-flammable refrigerant for applications down to about -80°C (193K). However, R-23 has an enormous global warming potential (GWP100=14800) and recent price increases lead to a loss of attractiveness in industry. As an alternative, some studies in recent years indicated the possibility of extending the application temperature of the natural refrigerant carbon dioxide (CO2) beneath its triple conditions in a refrigeration cycle. Thus there would be a great potential for CO2 to replace R-23. In present paper, the design of a cascade refrigeration machine using CO2-sublimation is introduced. R-452A is used as refrigerant for the upper stage. The lower stage can be switched between the CO2-sublimation cycle, featuring a two-stage compression with intercooling as well as an internal heat exchanger, and a conventional R-23 cycle. Both the CO2-sublimation as well as the R-23 lower stage cycles can be compared directly under the same ambient conditions. Stationary process simulations were made in order to compare the CO2 and R-23 cycles under various boundary conditions. It turned out that the overall system efficiency of the CO2-sublimation cycle could exceed the conventional R-23 cycle in many operation points. The design of this cascade refrigeration machine is currently used for building-up a demonstrator to prove the concept experimentally.
Significance of Dopamine Transmission in the Rat Medial Prefrontal Cortex for Conditioned Fear (2003)

Previous studies have demonstrated activation of dopamine transmission in the medial prefrontal cortex (mPFC) by conditioned fear stimuli. Therefore, the present study investigated the functional significance of mPFC dopamine for a conditioned fear response to a tone. We examined the effects of inhibition or stimulation of mPFC dopamine transmission by local microinfusion of the D1/D2-receptor antagonist cis-flupenthixol or the indirect dopamine receptor agonist D-amphetamine, respectively, in a classical fear-conditioning paradigm in Wistar rats. Rats received tone-shock pairings and were later exposed to the tone alone. Freezing was used as measure of conditioned fear. Presence of the drugs in the mPFC during the tone-shock pairings did not affect freezing during subsequent presentation of the tone alone. However, when cis-flupenthixol and D-amphetamine were present in the mPFC during presentation of the tone alone, freezing to the tone was reduced. We demonstrated that the decreased freezing could be explained neither by state dependency nor infusion-induced alterations in activity. Our data indicate that mPFC dopamine transmission is important for the retrieval/expression, but not the formation, of conditioned fear. The reduction of conditioned fear by prefrontal infusion of both cis-flupenthixol and D-amphetamine may reflect normal expression of conditioned fear requires an optimal level of mPFC dopamine activity.
Molekülstruktur von 8,11‐Dichlor[5]metacyclophan: Ein stark verbogener Benzolring (1984)

Ein bootförmig verzerrter Benzolring mit trotzdem „aromatischen”︁ Bindungslängen zeichnet die Titelverbindung 1 aus. Die Cyclohexatrien‐Hypothese muß demnach korrigiert werden. 1 hält gleich zwei Rekorde: 26.8° Abweichung des Benzolrings (am „Bug”︁) von der Planarität und kürzeste Brücke in einem [n]Metacyclophan. magnified image
Single-Component Organic Semiconductors Based on Novel Radicals that Exhibit Electrochemical Amphotericity:  Preparation, Crystal Structures, and Solid-State Properties of N,N‘-Dicyanopyrazinonaphthoquinodiiminides Substituted with an N-Alkylpyridinium Unit (2000)

N,N'-Dicyanonaphthoquinodiimines fused with a pyrazine ring 1 were prepared from the corresponding quinones 4. The new acceptors 1 have a planar pi-system and undergo reversible two-stage 1e-reduction. Quaternization of the pyridyl substituent in 1d-f gave pyridinium derivatives 2d+, 2e+, and R-3+, respectively, which are stronger acceptors that undergo three-stage 1e-reduction. Upon electrochemical reduction of these cations, novel radicals 2d., 2e., and R-3. were generated and isolated as stable solids. The molecular geometries determined by X-ray analysis indicated that these radicals adopt a zwitterionic structure, in which the unpaired electron is located on the quinodiimine unit but not on the pyridyl group. These novel radicals undergo facile and reversible 1e-oxidation as well as two-stage 1e-reduction. The observed amphotericity endows the radicals with electrical conductivities (10(-5) to 10(-9) S cm-1), and these thus represent a new motif for single-component organic semiconductors.
Struppa: Criminal Justice, Through the Eyes Of Victims' Families (2014)

In this article Struppa focuses on a Chapman Production, Call This Number, based on the real stories of families of homicide victims and tells the tales of their experiences with the criminal justice system.
Digital ruler: real-time object tracking and dimension measurement using stereo cameras (2013)

Stereo metrology involves obtaining spatial estimates of an object’s length or perimeter using the disparity between boundary points. True 3D scene information is required to extract length measurements of an object’s projection onto the 2D image plane. In stereo vision the disparity measurement is highly sensitive to object distance, baseline distance, calibration errors, and relative movement of the left and right demarcation points between successive frames. Therefore a tracking filter is necessary to reduce position error and improve the accuracy of the length measurement to a useful level. A Cartesian coordinate extended Kalman (EKF) filter is designed based on the canonical equations of stereo vision. This filter represents a simple reference design that has not seen much exposure in the literature. A second filter formulated in a modified sensor-disparity (DS) coordinate system is also presented and shown to exhibit lower errors during a simulated experiment.
Breaking through an epigenetic wall (2013)

The gene Oct4 encodes a transcription factor critical for the maintenance of pluripotency and self-renewal in embryonic stem cells. In addition, improper re-activation of Oct4 contributes to oncogenic processes. Herein, we describe a novel designer zinc finger protein (ZFP) capable of upregulating the endogenous Oct4 promoter in a panel of breast and ovarian cell lines carrying a silenced gene. In some ovarian tumor lines, the ZFP triggered a strong reactivation of Oct4, with levels of expression comparable with exogenous Oct4 cDNA delivery. Surprisingly, the reactivation of Oct4 required a KRAB domain for effective upregulation of the endogenous gene. While KRAB-containing ZFPs are traditionally described as transcriptional repressors, our results suggest that these proteins could, in certain genomic contexts, function as potent activators and, thus, outline an emerging novel function of KRAB-ZFPs. In addition, we document a novel ZFP that could be used for the epigenetic reprograming of cancer cells.
METRICATION OF ROADSIDE HARDWARE (1995)

The metrication of roadside hardware is detailed in the revised edition of the Guide to Standardized Highway Barrier Rail Hardware. This article highlights the most important recommendations regarding specifications, guardrails, bridge railings, and concrete median barriers. The most useful feature of the new guide is the exclusive use of the International System of Units (SI)--a modernized metric system, which will be an invaluable resource to states in the process of converting their roadside hardware standards to SI prior to the September 30, 1996, deadline.
Document Representation with Statistical Word Senses in Cross-Lingual Document Clustering (2014)

Cross-lingual document clustering is the task of automatically organizing a large collection of multi-lingual documents into a few clusters, depending on their content or topic. It is well known that language barrier and translation ambiguity are two challenging issues for cross-lingual document representation. To this end, we propose to represent cross-lingual documents through statistical word senses, which are automatically discovered from a parallel corpus through a novel cross-lingual word sense induction model and a sense clustering method. In particular, the former consists in a sense-based vector space model and the latter leverages on a sense-based latent Dirichlet allocation. Evaluation on the benchmarking datasets shows that the proposed models outperform two state-of-the-art methods for cross-lingual document clustering.
Improved techniques for the growth of high quality cadmium telluride crystals (1985)

This report summarizes two years' work as part of a multiyear program on improved techniques for the growth of high quality cadmium telluride crystals and represents one of the most comprehensive studies of melt growth and defect characterization in CdTe reported to date. Extensive melt growth studied were carried out using te vertical Bridgman method. Growth parameters were systematically varied in order to determine the influence of seed orientation, thermal environment, and growth rate on crystal quality. Growth interface shapes were revealed using autoradiographic dopant tracing methods. Melt thermal profiling was also carried out to further evaluate growth interface shapes. Controlled convex growth interface shapes were generated by using the heat exchanger method. By this means some improvement in grain structure of the typically polycrystalline boules was accomplished. Low frequency melt vibrations during growth were also observed to improve grain structure and reduce dislocation density. Extensive defect characterization was alos carried out using chemical etching methods, and later, synchrotron x-ray topography. Comparative studies of a broad selection of commercial CdTe substrates was carried out, and extensive defect structure was observed in all cases. Reduced dislocation densities and defect structures were accomplished using both low amplitude melt vibrations and doping with In 1IIC13. In the second case, solution hardening was assumed to be the mechanism responsible. For the case of melt vibration, the mechanism is not yet understood.
Effects of interleukin-2 plus highly active antiretroviral therapy on HIV-1 replication and proviral DNA (COSMIC trial) (2002)

Viral persistence during HAART is partly a result of continued low-level replication, calling for more active regimens. IL-2 accelerates the normalization of CD4 T cell counts but does not impact on virus production or latency.
Method for Analysis of Nanoparticle Hemolytic Properties in Vitro (2008)

Hemolysis (destruction of red blood cells) in vivo can lead to anemia, jaundice, and other pathological conditions; therefore the hemolytic potential of all intravenously administered pharmaceuticals must be evaluated. Nanotechnology-derived devices and drug carriers are emerging as alternatives to conventional small-molecule drugs, and in vitro evaluation of their biocompatibility with blood components is a necessary part of early preclinical development. The small size and unique physicochemical properties of nanoparticles may cause their interactions with erythrocytes to differ from those observed for conventional pharmaceuticals and may also cause interference with standardized in vitro tests. Separating true hemolytic responses from the false-positive or false-negative results caused by particle interference is important for correct interpretation of these tests. Here we describe validation of an in vitro assay for the analysis of nanoparticle hemolytic properties and discuss observed nanointerferences with the assay. We propose alternative methods to avoid misleading results from nanoparticles and discuss the potential relevance of nanoparticle in vitro hemolytic properties to in vivo systems.
Metallographic Analysis of Stainless Steel Inner Shaft of Centrifugal Pump (2020)

The paper focuses on the metallographic analysis of the damaged inner shaft of a centrifugal pump with a magnetic clutch. This pump was used for the pumping of viscous suspensions. The damaged part of the centrifugal pump was made of stainless steel and transmitted power from the magnetic clutch to the impeller of the pump. The pump was overhauled by the Manufacturer after ten years of routine work. Slightly worn parts of the pump, including the inner stainless steel shaft, were replaced by the Manufacturer according to the preserved documentation. The overhauled pump failed after two days of running in the original conditions. The problematic is solved by an analysis of three used inner shafts with the aid of a metallographic analysis of the microstructure of the material, using light microscopy and scanning electron microscopy, and an EDS microanalysis of the chemical composition and hardness measurements.
Silica sol-gel for the controlled release of antibiotics. I. Synthesis, characterization, andin vitro release (2001)

Room temperature processed silica sol-gel (xerogel) was investigated as a novel controlled release carrier of antibiotics (vancomycin). Xerogel characteristics, in vitro release properties, and bactericidal efficacy of the released antibiotic were determined. The xerogel/vancomycin composite showed a long-term sustained release (up to 6 weeks). In addition, bactericidal efficacy of released vancomycin was retained. The kinetics of release and the amount released were dose dependent. The initial, first-order release was followed by a near-zero-order release. The time to transition from the first- to zero-order release increased with vancomycin load (from 2 to 3 weeks with load increase from 2.2 to 11.1 mg/g). Regardless of the load, about 70% of the original vancomycin content was released by the transitional point, and the cumulative release after 6 weeks of immersion was about 90%. This study, combined with other reports documenting biocompatibility and controlled resorbability of the xerogel/drug composite in vivo, suggests that silica xerogel is a promising controlled release material for the treatment of bone infections.
Delphi: an integrated, language-directed performance prediction, measurement and analysis environment (1999)

Despite construction of powerful parallel systems and networked computational grids, achieving a large fraction of peak performance for a range of applications has proven very difficult. In this paper, we describe the components of Delphi, an integrated performance measurement and prediction environment that places system design on a solid performance engineering basis.