gebhart/patrepeval huggingface dataset:
Los hogares como espacios de arraigo y sus transformaciones en un contexto global (2021)

Homes, as places of rootedness and attachment, have been approached in their condition as lived spaces and as a place of one's own. But, in a context of extreme fluidity and hyper-flexibility of the spatio-temporal, characterised by accelerated transnational and translocal recompositions, how are homes configured? And, specifically, how are the households of "transmigrants", representatives of this hypermobility and deterritorialisation and of the current dynamics in which distance and time intersect, articulated? Barañano proposes an integrated approach to the dimensions of space and time in social life, without giving priority to one dimension over the other, in order to study the forms of coexistence and residential behaviour of "transmigrants", trying to analyse the new versions according to which these spaces recreate feelings of belonging and identification of their own as a strategic space in their lives.
Biodegradability evaluation of wastewaters from malt and beer production (2013)

This study reports results of respirometric measurements of activated sludge biodegrading the substrate in wastewater originating from the following brewery plant production departments: malt house, brewhouse, fermentation house and racking house. The process was conducted at two temperatures: 10 and 20°C with activated sludge adapted to brewery wastewaters. The loading of activated sludge reached 0.25 g chemical oxygen demand per gram dry matter per day, which assured complete degradation of organic matter. The physicochemical characteristics of the wastewaters are provided. The study demonstrates a correlation between the site of wastewater generation, the specific character of a unitary technological process and the quality of the wastewater discharged to the sewage system, including biodegradability. Despite significant differences in the quality of the wastewaters, they were characterized by high biodegradability at a temperature of 10 and 20°C and by the C:N:P ratio being beneficial for biological treatment, irrespective of their source of origin. Copyright © 2013 The Institute of Brewing & Distilling
Magnetic field effect on recombination of C1 atom pairs in solid hydrocarbon films: The role of spin-orbit coupling (1993)

Ultraviolet laser photolysis of glassy solid solutions of chlorine and methycyclopropane at 77 K yield hydrogen chloride and chloromethylcyclopropane as free radical chain reaction products. Samples subjected to weak magnetic fields exhibit a reduction in photochemical quantum yield from 180 {+-} at zero field to 70 {+-} 5 at 300 Gauss. At higher fields, the quantum yield increases, reaching a plateau of 120 {+-} 10 between 1000 and 3000 Gauss. The magnetic effect is attributed to field-dependent transitions between spin-orbit states of the C1 atom pair that are coupled by nuclear hyperfine interactions. The authors show that contrary to a popular belief, strong spin-orbit coupling in radical pairs does not necessarily diminish magnetic field effects.
Pyochelin biotransformation by Staphylococcus aureus shapes bacterial competition with Pseudomonas aeruginosa in polymicrobial infections (2022)

Summary Pseudomonas aeruginosa and Staphylococcus aureus are among the most frequently isolated bacterial species from polymicrobial infections of cystic fibrosis patients and chronic wounds. We applied mass spectrometry guided interaction studies to determine how chemical interaction shapes the fitness and community structure during co-infection of these two pathogens. We demonstrate that S. aureus is equipped with an elegant mechanism to inactivate pyochelin via the yet uncharacterized methyltransferase Spm ( s taphylococcal p yochelin m ethyltransferase). Methylation of pyochelin abolishes the siderophore activity of pyochelin and significantly lowers pyochelin-mediated intracellular ROS production in S. aureus . In a murine wound co-infection model, a S. aureus mutant unable to methylate pyochelin shows significantly lower fitness as compared to its parental strain. Thus, Spm mediated pyochelin methylation is a novel mechanism to increase S. aureus survival during in vivo competition with P. aeruginosa .
Proactive Botnet Countermeasures &ndash; An Offensive Approach (2009)

Botnets, consisting of thousands of interconnected, remote-controlled computers, pose a big threat against the Internet. We have witnessed the involvement of such malicious infrastructures in politically motivated attacks more than once in recent years. Classical countermeasures are mostly reactive and conducted as part of incident response actions. This is often not sufficient. We argue that proactive measures are necessary to mitigate the botnet threat and demonstrate techniques based on a formalized view of botnet infrastructures. However, while being technically feasible, such actions raise legal and ethical questions.
Microforce and Instrumented Indentation Research at the National Institute of Standards and Technology, Gaithersburg, MD | NIST (2003)

This paper provides an overview of recent efforts at the National Institute of Standards and Technology (NIST) to develop metrology and standards to support general users of instrumented indentation and scan-probe devices. Research directed towards a primary realization of force in the regime below 10 μN, development and characterization of novel compact microforce sensors, scan-probe force calibration, and standardization of instrumented indentation practices and calibration procedures is included. Descriptions of various laboratories and facilities are also highlighted.
Invariant Slot Attention: Object Discovery with Slot-Centric Reference Frames (2023)

Automatically discovering composable abstractions from raw perceptual data is a long-standing challenge in machine learning. Recent slot-based neural networks that learn about objects in a self-supervised manner have made exciting progress in this direction. However, they typically fall short at adequately capturing spatial symmetries present in the visual world, which leads to sample inefficiency, such as when entangling object appearance and pose. In this paper, we present a simple yet highly effective method for incorporating spatial symmetries via slot-centric reference frames. We incorporate equivariance to per-object pose transformations into the attention and generation mechanism of Slot Attention by translating, scaling, and rotating position encodings. These changes result in little computational overhead, are easy to implement, and can result in large gains in terms of data efficiency and overall improvements to object discovery. We evaluate our method on a wide range of synthetic object discovery benchmarks namely CLEVR, Tetrominoes, CLEVRTex, Objects Room and MultiShapeNet, and show promising improvements on the challenging real-world Waymo Open dataset.
The mechanics of tessellations – bioinspired strategies for fracture resistance (2015)

Faced with a comparatively limited palette of minerals and organic polymers as building materials, evolution has arrived repeatedly on structural solutions that rely on clever geometric arrangements to avoid mechanical trade-offs in stiffness, strength and flexibility. In this tutorial review, we highlight the concept of tessellation, a structural motif that involves periodic soft and hard elements arranged in series and that appears in a vast array of invertebrate and vertebrate animal biomaterials. We start from basic mechanics principles on the effects of material heterogeneities in hypothetical structures, to derive common concepts from a diversity of natural examples of one-, two- and three-dimensional tilings/layerings. We show that the tessellation of a hard, continuous surface - its atomization into discrete elements connected by a softer phase - can theoretically result in maximization of material toughness, with little expense to stiffness or strength. Moreover, the arrangement of soft/flexible and hard/stiff elements into particular geometries can permit surprising functions, such as signal filtering or 'stretch and catch' responses, where the constrained flexibility of systems allows a built-in safety mechanism for ensuring that both compressive and tensile loads are managed well. Our analysis unites examples ranging from exoskeletal materials (fish scales, arthropod cuticle, turtle shell) to endoskeletal materials (bone, shark cartilage, sponge spicules) to attachment devices (mussel byssal threads), from both invertebrate and vertebrate animals, while spotlighting success and potential for bio-inspired manmade applications.
Mitral Valve Repair in Heart Failure (2000)

Mitral regurgitation (MR) is a frequent complication of end-stage heart failure. Historically, these patients were either managed medically or with mitral valve replacement, both associated with poor outcomes. Mitral valve repair via an 'undersized' annuloplasty repair is safe and effectively corrects MR in heart-failure patients. All of the observed changes contribute to reverse remodeling and restoration of the normal left-ventricular geometric relationship. Mitral valve repair offers a new strategy for patients with MR and end-stage heart failure.
Liposome‐mediated transfer of nucleic acids in plant protoplasts (1990)

Liposomes spontaneously interact with the plasma membrane of protoplasts. The delivery of their content to the protoplast, however, has to be induced by physical or chemical treatments. Three major approaches have been used to study and optimize the delivery of RNA or DNA molecules: viral infection, transient gene expression and stable transformation. Conclusive evidence for the delivery of nuclei acids to the treated protoplasts has been obtained. Stable transformants expressing kanamycin resistance have been further characterized by hybridization techniques and progeney analysis. The potential and limitations of this approach for the transformation of higher plants is discussed.
The immunoproteasome, the 20S proteasome and the PA28αβ proteasome regulator are oxidative-stress-adaptive proteolytic complexes (2010)

Oxidized cytoplasmic and nuclear proteins are normally degraded by the proteasome, but accumulate with age and disease. We demonstrate the importance of various forms of the proteasome during transient (reversible) adaptation (hormesis), to oxidative stress in murine embryonic fibroblasts. Adaptation was achieved by 'pre-treatment' with very low concentrations of H2O2, and tested by measuring inducible resistance to a subsequent much higher 'challenge' dose of H2O2. Following an initial direct physical activation of pre-existing proteasomes, the 20S proteasome, immunoproteasome and PA28αβ regulator all exhibited substantially increased de novo synthesis during adaptation over 24 h. Cellular capacity to degrade oxidatively damaged proteins increased with 20S proteasome, immunoproteasome and PA28αβ synthesis, and was mostly blocked by the 20S proteasome, immunoproteasome and PA28 siRNA (short interfering RNA) knockdown treatments. Additionally, PA28αβ-knockout mutants achieved only half of the H2O2-induced adaptive increase in proteolytic capacity of wild-type controls. Direct comparison of purified 20S proteasome and immunoproteasome demonstrated that the immunoproteasome can selectively degrade oxidized proteins. Cell proliferation and DNA replication both decreased, and oxidized proteins accumulated, during high H2O2 challenge, but prior H2O2 adaptation was protective. Importantly, siRNA knockdown of the 20S proteasome, immunoproteasome or PA28αβ regulator blocked 50-100% of these adaptive increases in cell division and DNA replication, and immunoproteasome knockdown largely abolished protection against protein oxidation.
Entity-centric summarization (2014)

In recent times, focus of information retrieval community has shifted from traditional keyword-based retrieval to techniques utilizing the semantics in the text. Since such techniques require the understanding of relationships between entities, efforts are ongoing to organize the Web into large entity-relationship graphs. These graphs can be leveraged to answer complex relationship queries. However, most of the research has focused upon extracting structural information between entities such as a path, Steiner tree, or subgraphs. Little attention has been paid to the comprehension of these structural results, which is necessary for the user to understand relationships encapsulated in these structures. In this doctoral proposal, we pursue the idea of entity-centric summarization and propose a novel framework to produce entity-centric summaries which describe the relationships among input entities. We discuss the inherent challenges associated with each module in the framework and present an evaluation plan. Results from our preliminary experiments are encouraging and substantiate the feasibility of summarization problem.
α-Amidoalkylation at Carbon: Recent Advances - Part I (1984)

Amidoalkylation d'olefines d'acetylenes, de cetenes, de sulfenes, de composes carbenoides de composes a methylene actif et de composes organometalliques. Syntheses recentes de reactifs d'α-amidoalkylation
Growth Behaviour of Adherent Madin Darby Canine Kidney Cells : A Comparison of Different Model Approaches (2005)

Our aim is the design and optimisation of equine influenza vaccine production processes for the ameloriation of virus yields and batch-to-batch reproducibility [1]. In previous works we investigated the replication of virus particles [2]. Now we focus on cultivation and scale-up of adherent animal cells (Madin Darby Canine Kidney, MDCK) using microcarrier-systems to describe the entire process and combine both, the description of cell growth and virus replication. \nFor a better understanding of the process we first developed a simple unstructured, nonsegregated cell growth model. The model consisted of five ordinary differential equations with eleven parameters. It allowed predicting the increase in cell numbers, the uptake of glucose and glutamine as well as the release of ammonia and lactate. However, it did not take into account the attachment phase of the cells onto microcarriers during the start of cultivation. \nA comparison with experimental data showed drawbacks of such a basic model. Therefore we improved the existing model to include the attachment phase to describe the growth behaviour of the cells. At first we used a general mathematical description of lag phase at the beginning of cultivation. Secondly, for a more realistic biological description, we have separated the cell population into balances such as cells in suspension and on microcarriers. Furthermore we used an unstructured, segregated model to handle an inhomogeneously distributed cell population on the surface of the microcarriers. \nFinally we compared all modelling approaches for cell growth considering different cultivation experiments of large-scale microcarrier culture together with the corresponding model parameters specific for MDCK-cells. \n[1] Y. Genzel; I. Behrendt; S. König; H. Sann; U. Reichl; Metabolism of MDCK cells during cell growth and influence virus production in large-scale microcarrier culture, Vaccine 2004, 22(17-18), 2202- 2208. \n[2] L. Möhler, D. Flockerzi, H. Sann and U. Reichl; A Mathematical Model of Influenza A Virus Production in Large-Scale Microcarrier Culture; Biotechnology and Bioengineering; expected for publication sep 2004
Characterization and simulation of tensile behavior of graphene/polypropylene nanocomposites using a novel strain-rate-dependent micromechanics model (2013)

In this article, a newly developed model is utilized to simulate the strain-rate-dependent constitutive equation of graphene/polypropylene nanocomposites, using the mechanical properties of the constituent materials of nanocomposites. The model is a combination of the micromechanics and Goldberg models called strain-rate-dependent micromechanics (SRDM) model. The Johnson-Cook material model is used by the explicit finite element code LS-DYNA to simulate the strain-rate-dependent mechanical behavior of the standard tensile test specimen made of graphene/polypropylene nanocomposites under dynamic loading and its constants are calculated by the SRDM model. Polypropylene reinforced with 0.5, 1.0, and 2.0 wt% graphene sheets were prepared via coating polypropylene with graphene particles. Then, by melt blending in a twin-screw extruder followed by an injection molding process, the nanocomposite samples are manufactured. Good enhancements of Young’s modulus and yield stress at very low graphene contents are achieved. To evaluate the current model, the results are compared with the experimental result of the standard tensile test specimen. A good agreement between the experimental data and the SRDM model is achieved.
Schnelle kontinuierliche multiarterielle MRT der Leber unter freier Atmung (2017)

Ziel der Studie ist die Evaluation der multiarteriellen Leber MRT unter freier Atmung mittels einer selbstnavigierten 3D T1 GRE Sequenz mit Compressed Sensing (CS).
BASILAR ARTERY MIGRAINE PRESENTING AS CONVERSION HYSTERIA (1978)

A case of basilar migraine headache in a young woman is presented. Although the patient had been treated by a neurologist for 2 years, the diagnosis was not established. When she presented to the emergency room of a local hospital, another neurologist diagnosed conversion reaction. Although there had been problems in the family, neurological examination during an episode of headache revealed the typical features of basilar migraine headache. This case illustrates the need for sharp neurological diagnostic skills among psychiatrists, as well as the need to avoid mind-body dichotomies when possible. With treatment for migraine, the patient has done well for several months posthospitalization.
Spectrum of Luminescence from Laser-Induced Bubbles in Water and Cryogenic Liquids (2001)

The spectrum of the luminescence pulse from collapsing \nlaser-induced bubbles in water and cryogenic liquids has been measured. \nFor small bubbles in water the spectrum approximates that of a \nblack-body at about 7800 K, while for bubbles whose maximum radius is \ngreater than 1 mm the OH* molecular band at 310 nm becomes apparent, \na feature which is also seen in multi-bubble sonoluminescence. The \nlarger bubbles also show considerable instabilities in the vicinity of \nthe collapse minimum, where jets and fission events are observed. In \nthe liquid nitrogen and liquid argon the the luminescence is found to \nconsist of discrete lines from chromium atoms, which are compressed in the \nbubble collapse to a temperature of about 4500 K. The chromium \napparently results from the vaporization by the laser of stainless \nsteel microparticles floating in the liquids, possibly knocked off the \ncell walls by the strong shock waves generated by the laser focusing.
A Retrospective Review of 4767 Consecutive Spinal Anesthetics (1997)

Serious neurologic complications rarely occur after spinal anesthesia.Historically, the reported frequency of persistent sensory or motor deficits has ranged from 0.005% to 0.7%. However, the introduction of small-gauge needles and new local anesthetics and intrathecal adjuvants makes it necessary to reevaluate the frequency of neurologic complications after spinal anesthesia. This study is a retrospective review of 4767 consecutive spinal anesthetics performed between June 1987 and June 1990. Mean patient age was 65 +/- 15 yrs. There were 3560 (74.7%) men and 1207 (25.3%) women. A preexisting neurologic condition was present in 481 (10.1%) cases. The surgical procedures were genitourinary and lower extremity orthopedic in 4348 (91.2%) cases. A paresthesia was elicited during needle placement in 298 (6.3%) cases. Six patients reported pain upon resolution of the spinal anesthetic (persistent paresthesia). Four persistent paresthesias resolved within 1 wk; the remaining two resolved in 18-24 mo. The presence of a paresthesia during needle placement significantly increased the risk of persistent paresthesia (P < 0.001). There were also two infectious complications. One patient with recent (treated) urosepsis underwent a urologic procedure under spinal anesthesia and subsequently developed a disc space infection. The second patient developed a paraspinal abscess. Both were treated with surgical drainage and antibiotics and remained neurologically intact. There were 62 (1.3%) patients with a postdural puncture headache, including 23 (0.5%) who underwent an epidural blood patch. These results are similar to those of previously published reviews and demonstrate the continued safety of spinal anesthesia. (Anesth Analg 1997;84:578-84)
Syntheses of Azasugar Intermediates Containing Aldehyde Group or Azide Group (2012)

Protected five and six membered azasugar intermediates containing aldehyde group or azide group were synthesized using D-mannose as starting material via benzyl amine disubstitution or aza-Wittig reaction, then the oxidation and S N 2 substitution reactions, respectively. The studies on the reaction conditions, the protecting groups and the reaction mechanism were also carried out, providing a protocol to remove trityl (Tr) group selectively.
Three-dimensional plasmonic nanoswitch: Extreme variation of scattering properties upon rotation (2008)

In this context, we have proposed the synthesis and design of nanotransmission-lines (Alu et al., 2006) and backward-wave nanomaterials (Alu, 2007), the optical equivalent of connecting ldquoshortingrdquo wires (Alu, 2007), combinations of parallel and series nanocircuit elements (Salandrino et al., 2007) and basic collections of nanofilters.
Constituintes químicos de Zanthoxylum ekmanii (URB.) Alain (2005)

<abstract language="eng">Chemical investigation of Z. ekmanii resulted in the isolation of skimmianine, dictamnine, tembamide, sesamin, lupeol and beta-sitosterol. The structures were established by spectroscopic analyses. This is the first report on the phytochemical study of the roots and leaves of Z. ekmanii.
Analysis of common mode voltage-"neutral shift" in medium voltage PWM adjustable speed drive (MV-ASD) systems (2000)

In this paper, an analysis of common mode voltage or "neutral lift" in the new emerging voltage source inverter type medium voltage adjustable speed drive (MV-ASD) systems is presented. Both cascaded multilevel (CML) inverter and 3-level NPC inverter topologies are analyzed. An equivalent circuit model to determine the common mode voltage stress is presented. Analysis and simulation results are discussed and worst case common mode voltage excursion is computed for an example 800 hp, 4160 V MV-ASD. It is shown that certain system components are excessively stressed and in the MV-ASD system these data are particularly useful in specifying system components and for proper design of the system. Possible effects of common mode voltage and its dv/dt on medium voltage motor bearings are discussed. A new multilevel PWM strategy is introduced which results in zero common-mode voltage. Simulation results are shown to illustrate the effectiveness of these schemes. Finally, experimental results from a 800 hp, 4160 V, MV-ASD system are presented.
Extra iron for baby pigs (1975)

Ten mg. of iron per day fed orally 24 days in addition to 150 mg. injected when pigs were 3 days old did not significantly increase Hb of baby pigs. Neither did it increase average daily gain or weight-per-day-of-age at 32 days. We saw no symptoms of iron toxicity in treated pigs.; Swine Day, Manhattan, KS, November 13, 1975