gebhart/patrepeval huggingface dataset:
Acute iron poisoning. Rescue with macromolecular chelators. (1989)

Acute iron intoxication is a frequent, sometimes life-threatening, form of poisoning. Present therapy, in severe cases, includes oral and intravenous administration of the potent iron chelator, deferoxamine. Unfortunately, high dose intravenous deferoxamine causes acute hypotension additive with that engendered by the iron poisoning itself. To obviate this problem, we have covalently attached deferoxamine to high molecular weight carbohydrates such as dextran and hydroxyethyl starch. These macromolecular forms of deferoxamine do not cause detectable decreases in blood pressure of experimental animals, even when administered intravenously in very large doses, and persist in circulation much longer than the free drug. These novel iron-chelating substances, but not deferoxamine itself, will prevent mortality from otherwise lethal doses of iron administered to mice either orally or intraperitoneally. Further reflecting this enhanced therapeutic efficacy, the high molecular weight iron chelators also abrogate iron-mediated hepatotoxicity, suppressing the release of alanine aminotransferase. We conclude that high molecular weight derivatives of deferoxamine hold promise for the effective therapy of acute iron intoxication and may also be useful in other clinical circumstances in which control of free, reactive iron is therapeutically desirable.
How Executive Processes Explain the Overlap between Working Memory Capacity and Fluid Intelligence: A Test of Process Overlap Theory (2021)

Working memory capacity (WMC) and fluid intelligence (Gf) are highly correlated, but what accounts for this relationship remains elusive. Process-overlap theory (POT) proposes that the positive manifold is mainly caused by the overlap of domain-general executive processes which are involved in a battery of mental tests. Thus, executive processes are proposed to explain the relationship between WMC and Gf. The current study aims to (1) achieve a relatively purified representation of the core executive processes including shifting and inhibition by a novel approach combining experimental manipulations and fixed-links modeling, and (2) to explore whether these executive processes account for the overlap between WMC and Gf. To these ends, we reanalyzed data of 215 university students who completed measures of WMC, Gf, and executive processes. Results showed that the model with a common factor, as well as shifting and inhibition factors, provided the best fit to the data of the executive function (EF) task. These components explained around 88% of the variance shared by WMC and Gf. However, it was the common EF factor, rather than inhibition and shifting, that played a major part in explaining the common variance. These results do not support POT as underlying the relationship between WMC and Gf.
ChemInform Abstract: Aqueous Micellar Medium in Organic Synthesis: Alkylations and Michael Reactions of Benzotriazole. (2002)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Understanding structural problems in structural damping with bond graphs (2010)

There are some structures, particularly in outer space applications but also on earth, which are inherently lightly damped and hence vibrate a long time after excitation. In many cases, much of the damping that does exist comes from dry friction in bolted joints. It has been shown that controlling the clamping force at a joint, thus creating a semi-active damping element, can increase this type of damping.
Innovative Coupling of Ozone Oxidation and Biodegradation for Micropollutants Removal from Wastewater (2017)

An innovative approach for mitigating the micropollutants released by urban WWTP has been evaluated. It consists in applying ozone within an activated sludge system fed by a 50% vol mixture of raw hospital and urban wastewaters. Ozone was injected in the entering raw sewage or in the recycled mixed liquor. This integrated oxidation treatment provides a significant improvement in pharmaceuticals removal compared to biological treatment alone. Additional benefit lies in the simultaneous removal of the contaminants from both the solid and soluble phases. Compared to ozonation applied downstream the biological treatment, this configuration presents interesting advantages on the engineering aspects: improved operability of the biological treatment, control of bulking and odor issues.
A SURVEY ON NEAR FIELD COMMUNICATION IN MOBILE PHONES a PDAS (2010)

The last few years has witnessed a fast growth in technological advancement which has led to the development of several consumer electronic devices for different purposes or functionalities. For co ...
Mechanism of Propylene Polymerization with MgCl2-Supported Ziegler–Natta Catalysts Based on Counting of Active Centers: The Role of External Electron Donor (2013)

Four R1R2Si(OMe)2 type compounds were added as an external electron donor (De) in propylene polymerization with TiCl4/Di/MgCl2 type supported Ziegler–Natta catalysts (Di = internal donor). Each polypropylene (PP) sample was fractionated into three parts (atactic, medium-isotactic and isotactic PP), and the number of active centers ([C*]/[Ti]) in each PP fraction was counted using 2-thiophenecarbonyl chloride as the quenching and tagging agent. The gradual decrease of [C*]/[Ti] with De/Ti ratio is ascribed to competitive and reversible coordination of De on either central Ti of the active center or Mg adjacent to the central Ti. The former coordination leads to deactivation of C*, and the latter one leads to still living C*. The chain propagation rate constant (kp) of the active centers producing atactic, medium-isotactic and isotactic PP change with De/Ti in different ways. Only the kp of active centers producing isotactic PP was evidently increased by De. Enhancement in isotacticity of PP product is found to be a combined result of both deactivation of active centers by De and selective activation of the active centers that produce isotactic PP. Changing the alkyl groups of R1R2Si(OMe)2 leads to an altered balance between the deactivation and activation effects of De.
Combined Application of Electrically Stimulated Antagonist Muscle Contraction and Volitional Muscle Contraction Prevents Muscle Strength Weakness and Promotes Physical Function Recovery After Total Knee Arthroplasty: A Randomized Controlled Trial (2018)

HTS was effective in preventing quadriceps weakness and in improving physical function and QOL after TKA.
Improving Estimation of Vehicle's Trajectory Using the Latest Global Positioning System With Kalman Filtering (2011)

This paper proposes several extensive methods to predict the future location of an automobile. The goals of this paper are to find a more accurate way to predict the future location of an automobile by 3 s ahead, so that the prediction error can be greatly reduced with the innovative idea of merging global-positioning-system (GPS) data with geographic-information-system (GIS) data. The improvement starts by applying existing techniques to extrapolate the current GPS location. Comprehensive Kalman filters (KFs) are implemented to deal with inaccuracy in the different identified possible states an automobile could be found in, which are identified as constant locations, constant velocity, constant acceleration, and constant jerks. Then, the KFs are set up to be part of a interacting-multiple-model (IMM) system that provides the predicted future location of the automobile. To reduce the prediction error of the IMM setup, this paper imports an iterated geometrical error-detection method based on GIS data. The assumption that the automobile will remain on the road is made; therefore, the predictions of future locations that fall outside are corrected accordingly, making a great reduction to the prediction error. The actual experimental results validate our proposed system by reducing the prediction error to around half of what it would be without the use of GIS data.
When big data meets software-defined networking: SDN for big data and big data for SDN (2016)

Both big data and software-defined networking (SDN) have attracted great interests from both academia and industry. These two important areas have traditionally been addressed separately in the most of previous works. However, on the one hand, the good features of SDN can greatly facilitate big data acquisition, transmission, storage, and processing. On the other hand, big data will have profound impacts on the design and operation of SDN. In this paper, we present the good features of SDN in solving several issues prevailing with big data applications, including big data processing in cloud data centers, data delivery, joint optimization, scientific big data architectures and scheduling issues. We show that SDN can manage the network efficiently for improving the performance of big data applications. In addition, we show that big data can benefit SDN as well, including traffic engineering, cross-layer design, defeating security attacks, and SDN-based intra and inter data center networks. Moreover, we discuss a number of open issues that need to be addressed to jointly consider big data and SDN in future research.
Transfusion-induced enhancement of prostaglandin and thromboxane release in prospective kidney graft recipients. (1985)

Pre-transplant blood transfusions (BT) improve the survival of kidney grafts. Apart from specific immunoregulation by T suppressor cells or anti-idiotypic antibodies, the role of non-specific immunoregulatory factors, such as prostaglandins is being discussed as a possible mechanism for this effect. We studied the in vitro prostanoid release from peripheral mononuclear cells following three deliberate blood transfusions. Twenty-five previously non-transfused dialysis patients were studied. Spontaneous and LPS-induced prostaglandin E (PGE) and thromboxane B2 (TXB2) were determined in cell-free culture supernatants by fluid phase RIA. Transfused patients exhibited a more rapid onset and steeper increase of prostanoid production. After 24 hours incubation, the spontaneous and LPS-induced PGE release of pre- and post-BT cells was significantly different (pre-BT: 2.1 and 5.1 ng/ml; post-3-BT: 5.0 and 7.9 ng/ml; p less than 0.01). Pre-BT cells released considerably lower amounts of TXB2 than post-BT cells (spontaneous release: 39 vs 88 ng/ml; LPS-induced release: 62 ng/ml vs 129 ng/ml; p less than 0.05). After correction for monocytes as defined by monoclonal antibodies, post-BT cells again showed increased prostanoid release as compared to pre-BT cells. Therefore, the enhanced PGE and TXB2 release of post-BT cells is not caused by an increase merely in the number of monocytes. Rather, BT appear to induce an enhanced release of prostanoids by activation of monocytes. We also found a correlation between the number of BT and the amount of prostanoid release.
High-performance superlattice quantum cascade lasers (1999)

Superlattice quantum cascade (QC) lasers based on optical transitions between conduction minibands are unipolar semiconductor lasers with high-current-carrying capability and attendant high optical power due to miniband transport in the active and in the injector regions. Other advantages include the intrinsic population inversion associated with the large interminiband-to-intraminiband relaxation time ratio and the high oscillator strength of the laser transition at the superlattice Brillouin zone boundary. This oscillator strength is significantly larger than that of intersubband transitions in double-quantum-well active regions of conventional cascade lasers, particularly at long infrared wavelengths (/spl ges/10 /spl mu/m). Following a brief review of results on conventional QC lasers, design considerations for superlattice cascade lasers are discussed, along with recent advances in long-wavelength (11 /spl mu/m) structures with doped active regions. Dopants broaden the gain spectrum and increase the laser threshold. Two laser designs that avoid doping of the active regions without causing electric-field-induced localization of the superlattice states are then presented, along with experimental results. In the first one, modulation doping creates a space-charge electric field that compensates the voltage drop across the undoped superlattice active regions. In the second scheme, the latter are designed with quantum wells of varying thickness (chirped superlattice), so that under application of the external field, the localized quantum well states overlap, forming minibands. Both schemes lend to considerably lower threshold current densities than devices with doped active regions, as well as to much higher peak optical power and to room-temperature operation. A record peak power of 500 mW at /spl lambda/=7.6 /spl mu/m at room temperature is obtained with the chirped design. The latter also leads to the longest operating wavelength of any other QC laser (17 /spl mu/m). The last section of the paper describes superlattice cascade lasers operating simultaneously at two or more widely different wavelengths.
Characteristics of Currents and Sediment Transport around Kushiro Port due to 2003 Tokachi-oki Earthquake Tsunami (2013)

Characteristics of erosion around Kushiro port due to 2003 Tokachi-oki earthquake tsunami were quantitatively investigated using depth sounding. Valuable data of water surface profile, current velocity and concentration of suspended solid were obtained by field observation at 2003 tsunami. Characteristics of currents and sediment transport due to tsunami were quantitatively obtained. Erosion mechanism were examined by currents and sediment transport.
Effects of applied NaCl on Opuntia humifusa (1988)

Plant morphology in the field in Virginia, USA, and growth responses to applied NaCl in a glasshouse were determined for two populations of Opuntia humifusa (Rafinesque) Rafinesque, one from an inland site and the other from the marine strand, which differed in potential exposure to salinity. Cladode dimensions, plant height and rooting depth varied significantly between the populations. Application of NaCl in 50 m M increments up to 400 m M every 3 days for 6 weeks caused the cladodes to decrease up to 30% in thickness, the decrease being about 20% more at 50 to 150 m M NaCl for plants from the inland site than from the marine strand. Inhibition by 150 m M NaCl of the maximum rate of net CO 2 uptake and of the total CO 2 uptake over a 24‐h period was greater for the inland population. Growth, especially of roots, was inhibited by applied NaCl, with a decrease in biomass above 200 m M NaCl for plants from the inland site and not until 400 m M for those from the marine strand. Although the root Na + level was the same for plants from the two populations, reaching a maximum of about 8 mg (g dry weight) −1 at 200 m M NaCl, the cladode Na + level was two‐fold higher for plants from the marine strand than from the inland site. Thus, exclusion of Na + from the cladodes is not the reason for the greater NaCl tolerance of O. humifusa from the marine strand, which is a habitat that can experience periodic episodes of high salinity.
Review: Building American Submarines, 1914-1940, by Gary E. Weir (1994)

Book Review| January 01 1994 Review: Building American Submarines, 1914-1940, by Gary E. Weir Building American Submarines, 1914-1940Gary E. Weir Benjamin Franklin Cooling Benjamin Franklin Cooling Search for other works by this author on: This Site PubMed Google Scholar The Public Historian (1994) 16 (1): 100–102. https://doi.org/10.2307/3378602 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation Benjamin Franklin Cooling; Review: Building American Submarines, 1914-1940, by Gary E. Weir. The Public Historian 1 January 1994; 16 (1): 100–102. doi: https://doi.org/10.2307/3378602 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentThe Public Historian Search This content is only available via PDF. Copyright 1994 Regents of the University of California and the National Council on Public History Article PDF first page preview Close Modal You do not currently have access to this content.
Surface and bulk ferroelectric phase transition in super-tetragonal BiFeO3 thin films (2021)

The temperature-dependent ferroelectric properties of super-tetragonal ${\mathrm{BiFeO}}_{3}$ are investigated using surface-sensitive low-energy electron microscopy (LEEM). We use epitaxial oxide ${\mathrm{BiFeO}}_{3}/{\mathrm{Ca}}_{0.96}{\mathrm{Ce}}_{0.04}{\mathrm{MnO}}_{3}$ bilayers grown by pulsed laser deposition on ${\mathrm{YAlO}}_{3}$ substrates. Ferroelectric, micrometer-scale domains are written by piezoresponse force microscopy and subsequently observed by LEEM from room temperature up to about 950 K. Kelvin probe force microscopy and LEEM spectroscopy reveal that the surface potential is efficiently (&gt;50%) screened by adsorbates that are only released after annealing above 873 $\ifmmode\pm\else\textpm\fi{}$ 50 K in ultrahigh vacuum. The surface structure and chemistry of the ferroelectric thin films are analyzed using scanning transmission electron microscopy, electron energy loss spectroscopy, and x-ray photoelectron spectroscopy, discarding the occurrence of a putative ``skin layer'' effect. While its magnetic and structural transitions were reported in the literature, the true, ferroelectric Curie temperature of super-tetragonal ${\mathrm{BiFeO}}_{3}$ has not been determined so far. Here, we measure a Curie temperature of 930 $\ifmmode\pm\else\textpm\fi{}$ 30 K for the super-tetragonal ${\mathrm{BiFeO}}_{3}$ surface and corroborate it with volume-sensitive, temperature-dependent x-ray diffraction measurements. These results suggest that LEEM can be used as a powerful tool to probe surface charge and ferroelectric transitions in ultrathin films.
Power Handling Capability of Glass Fiber Lightguides (1974)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text John D. Crow, "Power Handling Capability of Glass Fiber Lightguides," Appl. Opt. 13, 467-468 (1974) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Products and Help Bits in Decision Trees (1998)

We investigate two problems concerning the complexity of evaluating a function f on k distinct inputs by k parallel decision-tree algorithms. In the product problem, for some fixed depth bound d, we seek to maximize the fraction of input k-tuples for which all k decision trees are correct. Assume that for a single input to f, the best depth-d decision tree is correct on a fraction p of inputs. We prove that the maximum fraction of k-tuples on which k depth-d algorithms are all correct is at most pk, which is the trivial lower bound. We show that if we replace the restriction to depth d by "expected depth d," then this result need not hold. In the help-bits problem, before the decision-tree computations begin, up to k-1 arbitrary binary questions (help-bit queries) can be asked about the k-tuple of inputs. In the second stage, for each possible (k-1)-tuple of answers to the help-bit queries, there is a k-tuple of decision trees where the ith tree is supposed to correctly compute the value of the function on the ith input, for any input that is consistent with the help bits. The complexity here is the maximum depth of any of the trees in the algorithm. We show that for all k sufficiently large, this complexity is equal to degs(f), which is the minimum degree of a multivariate polynomial whose sign is equal to f.
Impurity scattering from δ-layers in giant magnetoresistance systems (2001)

The properties of the archetypal Co/Cu giant magnetoresistance (GMR) spin-valve structure have been modified by the insertion of very thin (submonolayer) \ensuremath{\delta}-layers of various elements at different points within the Co layers, and at the Co/Cu interface. Different effects are observed depending on the nature of the impurity, its position within the periodic table, and its location within the spin valve. The GMR can be strongly enhanced or suppressed for various specific combinations of these parameters, giving insight into the microscopic mechanisms giving rise to the GMR. In particular, the doping of Fe and Ni into the spin valve close to, but not at the interface, leads to an increase in GMR, as does the introduction of Cu, a nonmagnetic impurity, into the Co layers.
Saturation Boiling Critical Heat Flux of PF-5060 Dielectric Liquid on Microporous Copper Surfaces (2014)

Pool boiling experiments are performed to investigate potential enhancement of critical heat flux (CHF) of PF-5060 dielectric liquid on microporous copper (MPC) surfaces and the effect of surface inclination angle. The morphology and microstructure of the MPC surfaces change with thickness. The experiments tested seven 10 × 10 mm MPC surfaces with thicknesses from 80 to 230 μm at inclination angles of 0 deg (upward facing), 60 deg, 90 deg (vertical), 120 deg, 150 deg, 160 deg, 170 deg, and 180 deg (downward facing). CHF increases as the thickness of the surface increases and/or the inclination angle decreases. The values in the upward facing orientation are 36–59% higher than on smooth Cu. For all surfaces, CHF values in the downward facing orientation are approximately 28% of those in the upward facing orientation. A developed CHF correlation, similar to those of Zuber and Kutateladze, accounts for the effects of inclination angle and thickness of the MPC surfaces. It is in good agreement with experimental data to within ±8%. Still photographs of nucleate boiling on the MPC surfaces at different inclinations help the interpretation of the experimental results.
Task-based assessment of neck CT protocols using patient-mimicking phantoms—effects of protocol parameters on dose and diagnostic performance (2020)

• A task-based approach using patient-mimicking phantoms was employed to optimize a CT system for neck imaging through systematic testing of protocol parameters. • Combined effects of 100-kVp tube voltage, TCM noise level of SD 10, a pitch of 0.813, and AIDR 3D reconstruction resulted in an optimal protocol in terms of dose and diagnostic performance. • Interactions of protocol parameters affect diagnostic performance and should be considered when optimizing CT techniques.
Nuclear Spin Switch in Semiconductor Quantum Dots (2007)

We show that by illuminating an InGaAs/GaAs self-assembled quantum dot with circularly polarized light, the nuclei of atoms constituting the dot can be driven into a bistable regime, in which either a thresholdlike enhancement or reduction of the local nuclear field by up to 3 T can be generated by varying the pumping intensity. The excitation power threshold for such a nuclear spin "switch" is found to depend on both the external magnetic and electric fields. The switch is shown to arise from the strong feedback of the nuclear spin polarization on the dynamics of the spin transfer from electrons to the nuclei of the dot.
On the Security Properties of e-Voting Bulletin Boards. (2018)

In state-of-the-art e-voting systems, a bulletin board (BB) is a critical component for preserving election integrity and availability. We introduce a framework for the formal security analysis of the BB functionality modeled as a distributed system. Our framework treats a secure BB as a robust public transaction ledger, defined by Garay et al. [Eurocrypt 2015], that additionally supports the generation of receipts for successful posting. Namely, in our model, a secure BB system achieves Persistence and Liveness that can be confirmable, in the sense that any malicious behavior can be detected via a verification mechanism.