gebhart/patrepeval huggingface dataset:
Heat-shock protein induction in rat hearts. A direct correlation between the amount of heat-shock protein induced and the degree of myocardial protection. (1994)

BACKGROUNDPrevious studies have demonstrated that heat-shock treatment results in the induction of 72-kD heat-shock protein (HSP72) and a reduction of infarct size after subsequent ischemia and reperfusion.METHODS AND RESULTSTo test the hypothesis that the degree of protection from ischemic injury in heat-shocked rats correlates with the degree of prior HSP72 induction, rats pretreated with 40 degrees C, 41 degrees C, or 42 degrees C of whole-body hyperthermia followed by 24 hours of recovery and control rats (n = 6 in each group) were quantitatively assessed for the presence of myocardial HPS72 by optical densitometry of Western blots and a primary antibody that is specific for HSP72 and a tertiary antibody labeled with 125I. Although rats heat-shocked to 40 degrees C had no significant induction of myocardial HSP72, rats heat-shocked to 41 degrees C and 42 degrees C demonstrated progressively increased amounts of myocardial HSP72 compared with controls. Separate groups of rats heat-shocked to 40 degrees...
Identifying controversial articles in Wikipedia (2012)

Wikipedia articles are the result of the collaborative editing of a diverse group of anonymous volunteer editors, who are passionate and knowledgeable about specific topics. One can argue that this plurality of perspectives leads to broader coverage of the topic, thus benefitting the reader. On the other hand, differences among editors on polarizing topics can lead to controversial or questionable content, where facts and arguments are presented and discussed to support a particular point of view. Controversial articles are manually tagged by Wikipedia editors, and span many interesting and popular topics, such as religion, history, and politics, to name a few. Recent works have been proposed on automatically identifying controversy within unmarked articles. However, to date, no systematic comparison of these efforts has been made. This is in part because the various methods are evaluated using different criteria and on different sets of articles by different authors, making it hard for anyone to verify the efficacy and compare all alternatives. We provide a first attempt at bridging this gap. We compare five different methods for modelling and identifying controversy, and discuss some of the unique difficulties and opportunities inherent to the way Wikipedia is produced.
Amino‐terminal heterogeneity of <i>E. coli</i> TEM‐β‐lactamase secreted from <i>Bacillus subtilis</i> (1986)

E. coli TEM-beta-lactamase, secreted from Bacillus subtilis after transformation with three different hybrid plasmids, was purified and subjected to direct amino-terminal sequence analysis. The results show that the signal sequence cleavage site varies depending on the hybrid plasmid construction and cannot be exactly predicted from the DNA sequences. The results are of general interest if recombinant DNA technology is used to synthesize, e.g. pharmaceutical products where the preservation of the authentic amino-terminal structure is highly desirable.
Oxidation or Nitridation Behavior of Pure Chromium and Chromium Alloys Containing 10 mass%Ni or Fe in Atmospheric Heating (2006)

The oxidation or nitridation behavior of pure chromium and chromium alloys containing 10 mass%Ni or 10 mass%Fe in atmospheric heating was investigated in the temperature range of 1073 to 1373 K. The formation behavior of the outer oxide phase of Cr2O3 and its growth kinetics in both chromium alloys was very similar to that of pure chromium. The nitride layer with the Cr2N phase was formed beneath the oxide phase at temperatures above 1273 K in pure chromium. Marked internal nitridation with the formation of the Cr2N phase was observed in the Cr-10 mass%Fe alloy, while the formation of Cr2N was negligible in the Cr-10 mass%Ni alloy. Neither Ni nor Fe were detected inside the Cr2O3 phase, and was enriched in the subsurface layer between the oxide layer and the base alloy in a respective alloy. The Ni-enriched layer in Cr-10 mass%Ni alloy had a relatively narrow width, but a very high concentration of Ni compared with the Fe-enriched layer formed in the Cr-10 mass%Fe alloy.
An integrated home server for communication, broadcast reception, and home automation (2006)

This paper presents a home server platform integrating the functions of communication, digital broadcasting reception, and home automation applications. The home server has a processing module of high performance to process software task, and a multimedia decoding module as a peripheral component interconnect slave device to decode the audio and the vide data compressed in various formats, and a home automation module to provide home control services, and a MPEG2 transport stream (TS) distributor to convey simultaneously three high definition television (HDTV) channels which may go their way from terrestrial, satellite, and cable tuners to the next destination via home network. For an implementation of this integrated home sever we have had to manipulate the video and audio paths from processing module, home automation module and tuner modules to display the selected one, on HDTV set. In order to convey Internet protocol television (IPTV) traffic through this integrated home server a QoS-enabled Ethernet switch is mounted to the processing module.
Cambio sectorial y desempleo en España : un análisis de la relación entre terciarización, cambio cualificativo y movilidad laboral en España (2001)

El artículo analiza la relación entre el cambio sectorial y la evolución del desempleo en España. Tras justificar la conveniencia de estudiar la cuestión en relación al caso español, el trabajo mantiene la hipótesis de que los intensos procesos de terciarización del empleo han introducido importantes diferencias entre las cualificaciones laborales asociadas a los procesos de creación y destrucción de empleo. En la medida en que los procesos de movilidad laboral se encuentren condicionados por criterios de adecuación cualificativa, la capacidad de ajuste del mercado de trabajo se habría visto condicionada, lo que explicaría, al menos en parte, la generación de importantes niveles de paro en España. El trabajo concluye que el cambio estructural y el desempleo son hechos relacionados, que las cualificaciones demandadas por el terciario no coinciden con las poseídas por la mano de obra expulsada de la industria y la agricultura y que los procesos de movilidad laboral que se producen en España no conectan de la misma manera y con la misma intensidad a los distintos sectores y a las diferentes ocupaciones laborales.
Experimental optimization of an <i>in situ</i> forming hydrogel for hemorrhage control (2008)

The fabrication of a novel in situ forming hydrogel composed of a multifunctional poly(ethylene glycol) (PEG) N-hydroxysuccinimide ester (NHS) and poly(allylamine hydrochloride) (PAA) was investigated. FTIR confirmed that PAA formed the hydrogel matrix (i.e., the formation of a PAA-like hydrogel). A factorial experiment was conducted to identify the key parameters that controlled gelation time, gel content, and swelling properties. The type of PEG (e.g., 4- and 6-arm) appeared to play a major role in determining all three performance parameters, with the greatest effect on gelation time. Other influencing factors include (a) the PEG concentration, which contributes to the gelation time and gel content; (b) pH of the buffer used for dissolving each polymer, which can affect the gelation time; and (c) PAA molecular weights, which contribute to the gel content and swelling. The concentration of PAA solution had no significant effects on hydrogel formation and properties within the investigated range, presumably due to negligible changes in the crosslinking density of the hydrogels. The PAA buffer pH influenced the gel content as well. Finally, thromboelastography was used to examine the effects of each polymer and their in situ gelation on blood coagulation in vitro. All individual polymers tested reduced clot strength, while the gelation of the polymers enhanced overall procoagulant effects. These results suggest that the biomaterial can be optimized to provide a combination of rapid gelation and swelling properties suitable for hemorrhage control and thus warrant further studies in animal bleeding models.
Chemical composition and feeding values of 'Baladi' and 'Navel' orange-meals in poultry rations. (1980)

Maternal provisioning of embryos in Gambusia (Poeciliidae) entails both production of large, yolky eggs and mother-to-embryo transfer of nutrients, the latter of which is readily quantified using injection of radiolabeled nutrients. We assayed patterns of nutrient transfer in broods of 26 Gambusia geiseri and 23 Gambusia affinis females, using injection of tritiated leucine. We examined maternal and embryo characteristics affecting the instantaneous rate of transfer and characterized the pattern of transfer to individual embryos within broods. Maternal (female size and condition) and brood characteristics (mean embryo size, developmental stage, brood size) did not predict the mean level of nutrient transfer to embryos in a brood for either species. Within broods, individual provisioning of embryos was not related to developmental stage, but was related to embryo mass in G. affinis with nutrient transfer higher to larger embryos. In addition, overall within-brood variation in nutrient transfer, measured as coefficient of variation in embryo radioactivity, was higher in G. affinis than in G. geiseri.
Luminescence of GaP at high excitation (1973)

Apart from the usual bound-exciton luminescence due to Te and N centers, broader peaks which appear at high excitation may be explained by free-carrier screening of the free excitons, or by high-density excitonic effects. A weak-luminescence structure observed around 2.8 eV, which has not been reported before, may be due to conduction electrons at the L point with holes at Γ15 bound to the neutral donors.
Reflecting Coatings for the Extreme Ultraviolet* (1959)

The conditions for preparing evaporated Al films of highest reflectance for mirrors and gratings to be used in the vacuum ultraviolet are summarized, and an account is given of aging studies. The preparation of bloom-free, one-micron thick coatings for grating blanks is described, and the effect of thin overcoatings on the efficiency of ruled gratings is discussed. Data are presented on the reflectance and aging of other film materials, such as Pt, ZnS, and Al2O3, which are more suitable for use at wavelengths below 1200 A. A discussion is given of the preparation and the reflecting properties of various multilayer film combinations suitable for reducing the reflectance of mirrors and gratings in the visible and the near ultraviolet while at the same time preserving a high reflectance in the extreme ultraviolet. A 250-A thick layer of MgF2 evaporated onto an Al coating immediately after its deposition was found both to raise the reflectance to about 80% at wavelengths down to 1200 A, and to retard aging.
Nicked  2-glycoprotein I: a marker of cerebral infarct and a novel role in the negative feedback pathway of extrinsic fibrinolysis (2004)

BEta(2)-glycoprotein I (beta(2)-GPI) is proteolytically cleaved by plasmin in domain V (nicked beta(2)-GPI), being unable to bind to phospholipids. This cleavage may occur in vivo and elevated plasma levels of nicked beta(2)-GPI were detected in patients with massive plasmin generation and fibrinolysis turnover. In this study, we report higher prevalence of elevated ratio of nicked beta(2)-GPI against total beta(2)-GPI in patients with ischemic stroke (63%) and healthy subjects with lacunar infarct (27%) when compared to healthy subjects with normal findings on magnetic resonance imaging (8%), suggesting that nicked beta(2)-GPI might have a physiologic role beyond that of its parent molecule in patients with thrombosis. Several inhibitors of extrinsic fibrinolysis are known, but a negative feedback regulator has not been yet documented. We demonstrate that nicked beta(2)-GPI binds to Glu-plasminogen with K(D) of 0.37 x 10(-6) M, presumably mediated by the interaction between the fifth domain of nicked beta(2)-GPI and the fifth kringle domain of Glu-plasminogen. Nicked beta(2)-GPI also suppressed plasmin generation up to 70% in the presence of tissue plasminogen activator, plasminogen, and fibrin. Intact beta(2)-GPI lacks these properties. These data suggest that beta(2)-GPI/plasmin-nicked beta(2)-GPI controls extrinsic fibrinolysis via a negative feedback pathway loop.
Advanced Hierachical Event-Stream Model (2008)

Analyzing future distributed real-time systems, automotive and avionic systems, is requiring compositional hard real-time analysis techniques. Well known established techniques as SymTA/S and the real-time calculus are candidates solving the mentioned problem. However both techniques use quite simple event models. SymTA/S is based on discrete events the real-time calculus on continuous functions. Such simple models has been choosen because of the computational complexity of the considered mathematical operations required for real-time analysis. Advances in approximation techniques are allowing the consideration of more expressive descriptions of events. In this paper such a new expressive event model and its analysis algorithm are described. It integrates the models of both techniques. It is also possible in this module to integrate an approximative real-time analysis into the event model. This allows to propagate the approximation through the analysis of a distributed system leading to a much more efficient analysis.
Electrical Stimulation for Pressure Sore Prevention and Wound Healing (2000)

This paper reviews applications of therapeutic electrical stimulation (ES) specific to wound healing and pressure sore prevention. The application of ES for wound healing has been found to increase the rate of healing by more than 50%. Furthermore, the total number of wounds healed is also increased. However, optimal delivery techniques for ES therapy have not been established to date. A study of stimulation current effects on wound healing in a pig model has shown that direct current (DC) stimulation is most effective in wound area reduction and alternating current (AC) stimulation for wound volume reduction at current densities of 127 microA/cm2 and 1,125 microA/cm2, respectively. Preliminary studies have been carried out at two research centers to assess the role of ES in pressure sore prevention. Surface stimulation studies have shown that ES can produce positive short-term changes in tissue health variables such as regional blood flow and pressure distribution. The use of an implanted stimulation system consisting of intramuscular electrodes with percutaneous leads has been found to produce additional long-term changes. Specifically, gluteal muscle thickness increased by 50% with regular long-term ES application concurrent with a 20% decrease in regional interface pressures and increased tissue oxygen levels. These findings indicate that an implantable ES system may have great potential for pressure sore prevention, particularly for individuals who lack sensation or who are physically unable to perform regular independent pressure relief.
Induction of apoptosis in NIH3T3 cells after serum deprivation by overexpression of rho-p21, a GTPase protein of the ras superfamily. (1995)

Oncogenes appear to influence apoptosis in two ways. Some activate cells from a growth-arrested state to one in which both apoptosis and entry to S-phase become possible, the choice between them being determined by a second signal, such as cytokine or growth factor. Cells in this state are often sensitive to apoptosis induced by a wide variety of agents, including several drugs used in cancer chemotherapy. Other oncogenes prevent activation of the apoptosis effector pathway, even in the presence of a death stimulus, the affected cells therefore being resistant to chemotherapeutic agents. In rodent fibroblasts, c-myc or the adenovirus oncogene E1A effect the first type of change, whereas bcl-2, v-abl, E1B or activated ras effect the second. Here we study in rodent fibroblast the effect of expression of rho genes, members of the ras superfamily which we have previously shown to be tumorigenic when highly expressed in this cell type. We show that expression of wild-type rho from Aplysia californica stimulates apoptosis in cultured cell lines and that the apoptotic index in tumors generated by these cell lines is similar to those induced by E1A-transformed cells. In contrast, mutated rho, activated by Val14 substitution in the GTP binding site, it less potent as a stimulator of apoptosis, generating a phenotype more similar to that obtained with activated ras. Thus, rho genes may play a critical role in the regulation of apoptosis.
Building Xamarin.Forms Apps Using XAML (2019)

The eXtensible Application Markup Language (XAML, pronounced “zammel”) is used to define user interfaces (UI) for frameworks such as the Windows Presentation Foundation (WPF), the Universal Windows Platform (UWP), and Xamarin.Forms. These XAML dialects share the same syntax based on the 2009 XAML specification but differ in their vocabularies, which may eventually be aligned under one XAML Standard.
A New Class of Synthetic Jet Actuators—Part II: Application to Flow Separation Control (2005)

In this work we present the application of the new synthetic jet actuator (SJA) to flow separation control over a NACA 0015 wing. The actuator is compact enough to fit in the interior of the wing that has a chord of 0.375 m. The wing was tested in the Texas A&M University Aerospace Engineering 3 ft×4 ft wind tunnel. An experimental investigation into the effects of the synthetic jet actuator on the performance of the wing is described. Emphasis is placed on the capabilities of the actuator to control the separation of the flow over the wing at high angles of attack. The results include force balance measurements, on surface and off surface flow visualization, surface pressure measurements, and wake surveys. All of the reported tests were performed at a free-stream velocity of 35 m/s, corresponding to a Reynolds number of 8.96×105. The angle of attack was varied from −2.0 deg to 29.0 deg. For the results presented, at angles of attack lower than 10 deg, the actuator has minimal effects. At higher angles of attack, the SJA delays the onset of stall. The use of the actuator causes an 80% increase in the maximum lift coefficient, while the angle at which stall occurs is increased from 12 to 18 deg. The drag on the wing is decreased as a consequence of SJA actuation. For angles of attack larger than 18 deg, where the wing experiences massive separation, the SJA still provides a moderate amount of lift augmentation compared to the unforced case. At angles of attack larger than 25°, a larger frequency of actuation is required to produce significant effects.
Portal-ble: Intuitive Free-hand Manipulation in Unbounded Smartphone-based Augmented Reality (2019)

Smartphone augmented reality (AR) lets users interact with physical and virtual spaces simultaneously. With 3D hand tracking, smartphones become apparatus to grab and move virtual objects directly. Based on design considerations for interaction, mobility, and object appearance and physics, we implemented a prototype for portable 3D hand tracking using a smartphone, a Leap Motion controller, and a computation unit. Following an experience prototyping procedure, 12 researchers used the prototype to help explore usability issues and define the design space. We identified issues in perception (moving to the object, reaching for the object), manipulation (successfully grabbing and orienting the object), and behavioral understanding (knowing how to use the smartphone as a viewport). To overcome these issues, we designed object-based feedback and accommodation mechanisms and studied their perceptual and behavioral effects via two tasks: picking up distant objects, and assembling a virtual house from blocks. Our mechanisms enabled significantly faster and more successful user interaction than the initial prototype in picking up and manipulating stationary and moving objects, with a lower cognitive load and greater user preference. The resulting system---Portal-ble---improves user intuition and aids free-hand interactions in mobile situations.
High power VCSEL devices for free space optical communications (2005)

High power VCSEL (vertical-cavity surface-emitting lasers) as light sources for free space optical communications have been developed. These VCSEL devices have 4, 9, or 16 simultaneously driven spots - similar to a single spot VCSEL and have a single cone-shaped far field pattern (FFP) under high optical output power operations at 10, 20 and 40mW. Since the multispots are driven simultaneously, these devices have a high optical output power even if the optical output power from each spot is small. As a result, the mean time to failure (MTTF) obtained from a 4 spot multimode 850nm VCSEL array is well over 1,000,000 hrs at 70/spl deg/C under a 10mW operation. The VCSEL arrays also show a wide-open 2.5Gbps eye diagram at standard driving conditions - more than sufficient for optical free space communications such as optical wireless HDTV transmission systems. The simultaneously driven 9 and 16 spot multimode 850nm VCSEL arrays also show similar wide-open 2.5Gbps eye diagrams under standard driving conditions. Simultaneously driven multispot VCSEL arrays are useful as light sources for free space optics (FSO) because of their high speed modulation and high reliability under high optical output power operation.
Design of Siemens control assemblies for pressurized water reactors and operational experience / Auslegung von Siemens-Steuerelementen für Druckwasserreaktoren und Betriebserfahrungen (1992)

Article Design of Siemens control assemblies for pressurized water reactors and operational experience / Auslegung von Siemens-Steuerelementen für Druckwasserreaktoren und Betriebserfahrungen was published on February 1, 1992 in the journal Kerntechnik (volume 57, issue 2).
A Content Integrity Service For Long-Term Digital Archives (2006)

integrity, archiving, storage, security, authentication We present a content integrity service for long-lived digital documents, especially for objects stored in long-term digital archives. The goal of the service is to demonstrate that information in the archive is authentic and has not been unintentionally or maliciously altered, even after its bit representation in the archive has undergone one or more transformations. We describe our design for an efficient, secure service that achieves this, and our implementation of the first prototype of such a service that we built for HP&apos;s Digital Media Platform. Our solution relies on one-way hashing and digital time-stamping procedures. Our service applies not only to transformations to archival content such as format changes, but also to the introduction of new cryptographic primitives, such as new one-way hash functions. This feature is absolutely necessary in the design of an integrity-preserving system that is meant to endure for decades.
Raman Spectra of Strontium Titanate (1982)

At room‐temperature the Raman spectrum was second‐order, in agreement with, the selection rules for the cubic perovskite structure. The second‐order spectrum originates largely from pairs of phonons with wave vectors near the Brillouin zone boundary. First‐order Raman‐active modes predicted in the tetragonal phase of SrTiO 3 are observed on cooling to 120 K, where a new impurity‐related band is observed at 793 cm −1 . The presence of impurities raised the cubic to tetragonal phase transition temperature to 120 K.