gebhart/patrepeval huggingface dataset:
A PFC Voltage Regulator With Low Input Current (2006)

This paper presents an ac-dc converter topology for realization of power factor correction (PFC) voltage regulators for applications where the mains frequency is high and a low input current harmonic is required, e.g., in aircraft power systems. The proposed converter represents a minimal configuration consisting of two basic converters, which can be systematically derived from a previously proposed general synthesis procedure for rectifierless ac-dc converters. The proposed PFC converter has incorporated a control method which drastically reduces the circulating power and hence raises the efficiency to a level comparable to existing PFC converters. The proposed PFC converter can completely elim- inate any crossover distortion, which can be significant for supply systems having a high mains frequency. In addition, the proposed converter allows bidirectional energy flow ensuring all inductors work in continuous conduction mode hence eliminating the distor- tion due to the abrupt change of dynamic response when the oper- ating mode changes. Analysis and design of the power and control circuits will be given and discussed. An experimental system will be presented for verification purposes.
On the experimental protocol in Virtual Reference Feedback Tuning (2010)

The VRFT (Virtual Reference Feedback Tuning) is a model-free method for the design of feedback controllers in a linear setting. In practical applications, two main critical issues are the undermodeling of the controller structure and the measurement noise. This paper proposes an optimized experimental protocol, in order to better cope with these two critical points, without giving up on the main properties of the methodology.
Field driven ferromagnetic phase evolution originating from the domain boundaries in antiferromagnetically coupled perpendicular anitsotropy films (2008)

Field driven ferromagnetic phase evolution originating
Coffee Cup Atomic Force Microscopy (2010)

In this activity, students use a model created from a coffee cup or cardstock cutout to explore the working principle of an atomic force microscope (AFM). Students manipulate a model of an AFM, using it to examine various objects to retrieve topographic data and then graph and interpret results. The students observe that movement of the AFM cantilever can be monitored by the deflection of a laser beam. Goals for the students are to examine macroscopic objects and relate their measurement technique to the atomic- and molecular-scale measurements of an actual AFM.
Electron Microscopy Study of Single Crystal BaZr0.9Y0.1O3-x Films Prepared by Chemical Solution Deposition (2012)

Single crystal thin films of 10% yttrium doped barium zirconate (BZY10) have been prepared using chemical solution deposition on magnesium oxide substrates and annealed at 800 or 1000ºC. A focused ion beam lift out technique was used to prepare thin (&lt; 100 nm) specimens for transmission electron microscopy (TEM) analysis. A variety of TEM based techniques were used for characterization, including high resolution imaging, X-ray energy dispersive spectroscopy and energy filtered TEM. High resolution TEM imaging indicated a high quality single crystal film with an epitaxial cube on cube type interface between BZY10 and MgO. For the sample annealed 1000ºC, annular dark field imaging in scanning transmission electron microscopy (STEM) mode showed a layered pattern of lower intensity in the single crystal film. Energy filtered TEM thickness map together with scanning electron microscopy (SEM) indicate the pattern consists of partially repeating voids.
Unsaturated Ru(0) Species with a Constrained Bis-Phosphine Ligand:  [Ru(CO)2(tBu2PCH2CH2PtBu2)]2. Comparison to [Ru(CO)2(PtBu2Me)2] (2000)

The synthesis of Ru(C2H4)(CO)2(dtbpe) (dtbpe = tBu2PC2H4PtBu2), then green [Ru(CO)2(dtbpe)]n is described. In solution, n = 1, while in the solid state, n = 2; the dimer has two carbonyl bridges. DFTPW91, MP2, and CCSD(T) calculations show that the potential energy surface for bending one carbonyl out of the RuP2C(O) plane is essentially flat. Ru(CO)2(dtbpe) reacts rapidly in benzene solution to oxidatively add the H-E bond of H2, HCl, HCCR (R = H, Ph), [HOEt2]BF4, and HSiEt3. The H-C bond of C6HF5 oxidatively adds at 80 degrees C. CO adds, as does the C=C bond of H2C=CHX (X = H, F, Me). The following do not add: N2, THF, acetone, H3COH, and H2O.
Placental protein 13 (PP13)-induced vasodilation of resistance arteries from pregnant and nonpregnant rats occurs via endothelial-signaling pathways (2017)

Placental protein 13 (PP13) induces hypotension in rats. This study aims to evaluate PP13 effects on isolated uterine arteries from nonpregnant and mid-pregnant rats. Vessels were isolated, cannulated, and pressurized to 50 mmHg within an arteriograph, preconstricted and exposed to increasing PP13 concentrations (10<sup>-13</sup>-10<sup>-8</sup> M). PP13 elicited 38-50% arterial vasodilation with half-maximum response (EC<sub>50</sub>) = 1 pM. The relaxation was mediated by activating the endothelial-signaling pathways of prostaglandin and nitric oxide (NO). Accordingly, these results encourage evaluation of PP13 as a possible therapy for gestational diseases characterized by insufficient uteroplacental blood flow and/or maternal hypertension.
A integrated F-antenna for diversity reception in a DECT data transmission module (2000)

The article describes a DECT module with two integrated F-antennas placed perpendicular to each other at different sides of the module. This leads to null-filling and to better transmission properties by using switched diversity.
Identification of PADI2 as a potential breast cancer biomarker and therapeutic target (2012)

Together, these results suggest that PADI2 may function as an important new biomarker for HER2/ERBB2+ tumors and that Cl-amidine represents a new candidate for breast cancer therapy.
A role for endothelin and nitric oxide in the pressor response to diaspirin cross-linked hemoglobin. (1993)

Diaspirin-cross-linked hemoglobin (DCLHb; Baxter Healthcare Corp) has potential for clinical use as a hemoglobin-based oxygen-carrying solution. We have previously shown that DCLHb administration is associated with a self-limiting increase in mean arterial pressure (MAP). Based on in vitro studies with other hemoglobin solutions, this vasopressor effect is thought to be mediated at least in part by the release or inhibition (or both) of endothelium-derived vasoactive substances. The purpose of our studies was to determine the role of endothelin (ET), a potent vasoconstrictor peptide, and nitric oxide, a vasodilator, in mediating the pressor effect of DCLHb in conscious rats. Intravenous administration of DCLHb has been shown to elicit an immediate increase in MAP that peaks within 30 minutes and returns to baseline by 300 minutes in a dose-dependent fashion. Phosphoramidon, an inhibitor of proendothelin conversion to ET, attenuated the elevation of MAP when administered before DCLHb. Administration of cyanomet DCLHb, a DCLHb molecule that is unable to interact with NO, was not associated with an elevation of MAP. L-arginine, the substrate for NO synthesis, and nitroglycerin, an NO donor, significantly reduced MAP when infused 15 minutes after DCLHb administration. Based on these findings, we conclude that the DCLHb-induced elevation of MAP in vivo is mediated at least in part by ET and the inhibition of NO. Although these data support earlier reports of hemoglobin binding NO, this is the first report of the pressor response to hemoglobin being attenuated by an agent that blocks the conversion of proendothelin to ET.
Spatial and Spectral Resolution of Semiconductor Detectors in Medical Imaging (2017)

Medical imaging devices commonly use gamma and x-ray radiation to generate internal images of the human body. Single photon emission tomography (SPECT) and positron emission tomography (PET) systems detect gamma emissions of radionuclide tracers. Computed tomography (CT), radiography, and mammography systems measure the x-ray attenuation of the human body. Figure 4.1 outlines the modes of operation of SPECT, CT, and radiography devices.
An Innovative Rate Adaptation Algorithm for Multicast Transmissions in Wireless LANs (2013)

Rate adaptation represents a key functionality of the 802.11 MAC protocol for performance enhancement. Several solutions have been proposed for improving the transmission rate of unicast communications using frame receptions/losses, BER (Bit Error Rate) and SNR (Signal to Noise Ratio) measurements. Nevertheless, rate adaptation for multicast transmissions represents a more challenging tasks due to the complexity of estimating the reception correlation of wireless links. This paper presents a novel scheme for selecting the best transmission rate for multicast communications using the packet reception correlation of the links established among the nodes of the multicast group with the access point. The proposed algorithm has been evaluated on a real-life testbed using commercial wireless cards. The results show that our solution accurately estimates the reception correlation of wireless links, thus considerably increasing the performance of multicast transmissions up to 3x and 5x in terms of throughput and delay, respectively.
On the breakdown physics of trench-gate drain extended NMOS (2015)

In this work, two drain extended NMOS (DeNMOS) devices, one with only planar gate and another with both planar gate and gate in a trench under the gate-drain overlap region (called trench-gate DeNMOS) are investigated. The latter device shows improved ON-state performance due to greater spacecharge control with addition of trench gate. The OFF-state breakdown physics is also compared with conventional DeNMOS device. Due to greater field spreading in the trench-gate device under OFF-state conditions, a distinct base-push effect is not observed, unlike conventional device. The oxide reliability in trench-gate device improves with an additional offset in the drift region. Therefore, the trench-gate DeNMOS can be used as an alternative to improve input/output (I/O) device performance and reliability in advanced system-on-chip (SoC) applications.
A comparison of prostate cancer bone metastases on 18F-Sodium Fluoride and Prostate Specific Membrane Antigen (18F-PSMA) PET/CT: Discordant uptake in the same lesion (2018)

As metastatic prostate cancer progresses from castration-sensitive to castration-resistant, greater discordance is observed between NaF PET and PSMA PET uptake. This may indicate a possible phenotypic shift to tumor growth that is more independent of bone remodeling via osteoblastic formation.
Supplementary Figure S4 from Intraductal Transplantation Models of Human Pancreatic Ductal Adenocarcinoma Reveal Progressive Transition of Molecular Subtypes (2023)

&lt;p&gt;PDAC molecular subtype is a plastic phenotype that can be influenced by stromal interactions.&lt;/p&gt;
A local‐analytic‐based discretization procedure for the numerical solution of incompressible flows (2005)

Abstract An Erratum has been published for this article in International Journal for Numerical Methods in Fluids 2005, 49(8): 933. We present a local‐analytic‐based discretization procedure for the numerical solution of viscous fluid flows governed by the incompressible Navier–Stokes equations. The general procedure consists of building local interpolants obtained from local analytic solutions of the linear multi‐dimensional advection–diffusion equation, prototypical of the linearized momentum equations. In view of the local analytic behaviour, the resulting computational stencil and coefficient values are functions of the local flow conditions. The velocity–pressure coupling is achieved by a discrete projection method. Numerical examples in the form of well‐established verification and validation benchmarks are presented to demonstrate the capabilities of the formulation. The discretization procedure is implemented alongside the ability to treat embedded and non‐matching grids with relative motion. Of interest are flows at high Reynolds number, 𝒪(10 5 )–𝒪(10 7 ), for which the formulation is found to be robust. Applications include flow past a circular cylinder undergoing vortex‐induced vibrations (VIV) at high Reynolds number. Copyright © 2005 John Wiley &amp; Sons, Ltd.
Measurement of the Two-Photon Decay of theKL0Meson (1971)

A measurement of the rate $\ensuremath{\Gamma}({K}_{L}^{0}\ensuremath{\rightarrow}2\ensuremath{\gamma})$ has been made relative to the rates $\ensuremath{\Gamma}({K}_{L}^{0}\ensuremath{\rightarrow}3{\ensuremath{\pi}}^{0})$, $\ensuremath{\Gamma}({K}_{L}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\mu}}^{\ensuremath{\mp}}{\ensuremath{\nu}}_{\ensuremath{\mu}})$, and $\ensuremath{\Gamma}({K}_{L}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}{e}^{\ensuremath{\mp}}{\ensuremath{\nu}}_{e})$ in a spark-chamber scintillation-counter experiment. Using published branching ratios of the three-body decays relative to the rate $\ensuremath{\Gamma}({K}_{L}^{0}\ensuremath{\rightarrow}\mathrm{all})$, the branching ratio $\frac{\ensuremath{\Gamma}({K}_{L}^{0}\ensuremath{\rightarrow}2\ensuremath{\gamma})}{\ensuremath{\Gamma}({K}_{L}^{0}\ensuremath{\rightarrow}\mathrm{all})}$ has been found to be (4.5 \ifmmode\pm\else\textpm\fi{} 1.0) \ifmmode\times\else\texttimes\fi{} ${10}^{\ensuremath{-}4}$, based on 23 valid decays, which were separated from a small background.
Automated configuration of TCP/IP with DHCP (1999)

The TCP/IP suite has various protocols that must be carefully configured so that networked devices operate efficiently. Setting values by hand is time-consuming and error-prone; moreover, several trends are adding to the need for automated parameter configuration and administration. The Dynamic Host Configuration Protocol, accepted as a proposed standard by the Internet Engineering Task Force, offers a way to automatically configure network devices that use TCP/IP. These devices use DHCP to locate and contact servers, which return the appropriate configuration information as data. The DHCP servers act as agents for network administrators and automate the process of network address allocation and parameter configuration. Addresses can be assigned and individual addresses can be reassigned to new DHCP clients without explicit intervention by a network administrator. The IETF's Dynamic Host Configuration (DHC) working group is now at work adding new features to DHCP. The author describes the group's work on DHCP in detail, outlines the management of a DHCP service, and discusses new DHCP features, including the version being developed for IPv6.
Human Cord Blood Cells and Myocardial Infarction: Effect of Dose and Route of Administration on Infarct Size (2007)

There is no consensus regarding the optimal dose of stem cells or the optimal route of administration for the treatment of acute myocardial infarction. Bone marrow cells, containing hematopoietic and mesenchymal stem cells, in doses of 0.5 x 10(6) to >30 x 10(6) have been directly injected into the myocardium or into coronary arteries or infused intravenously in subjects with myocardial infarctions to reduce infarct size and improve heart function. Therefore, we determined the specific effects of different doses of human umbilical cord blood mononuclear cells (HUCBC), which contain hematopoietic and mesenchymal stem cells, on infarct size. In order to determine the optimal technique for stem cell administration, HUCBC were injected directly into the myocardium (IM), or into the LV cavity with the ascending aorta transiently clamped to facilitate coronary artery perfusion (IA), or injected intravenously (IV) in rats 1-2 h after the left anterior coronary artery was permanently ligated. Immune suppressive therapy was not given to any rat. One month later, the infarct size in control rat hearts treated with only Isolyte averaged 23.7 +/- 1.7% of the LV muscle area. Intramyocardial injection of HUCBC reduced the infarct size by 71% with 0.5 x 10(6) HUCBC and by 93% with 4 x 10(6) HUCBC in comparison with the controls (p < 0.001). Intracoronary injection reduced the infarction size by 47% with 0.5 x 10(6) HUCBC and by 80% with 4 x 10(6) HUCBC (p < 0.001), and IV HUCBC reduced infarct size by 51% with 0.5 x 10(6) and by 75-77% with 16-32 million HUCBC (p < 0.001) in comparison with control hearts. With 4 x 10(6) HUCBC, infarction size was 65% smaller with IM HUCBC than with IA HUCBC and 78% smaller than with IV HUCBC (p < 0.05). Nevertheless, IM, IA, and IV HUCBC all produced significant reductions in infarct size in comparison with Isolyte-treated infarcted hearts without requirements for host immune suppression. The present experiments demonstrate that the optimal dose of HUCBC for reduction of infarct size in the rat is 4 x 10(6) IM, 4 x 10(6) IA, and 16 x 10(6) IV, and that the IM injection of HUCBC is the most effective technique for reduction in infarct size.
CPU and cache efficient management of memory-resident databases (2013)

Memory-Resident Database Management Systems (MRDBMS) have to be optimized for two resources: CPU cycles and memory bandwidth. To optimize for bandwidth in mixed OLTP/OLAP scenarios, the hybrid or Partially Decomposed Storage Model (PDSM) has been proposed. However, in current implementations, bandwidth savings achieved by partial decomposition come at increased CPU costs. To achieve the aspired bandwidth savings without sacrificing CPU efficiency, we combine partially decomposed storage with Just-in-Time (JiT) compilation of queries, thus eliminating CPU inefficient function calls. Since existing cost based optimization components are not designed for JiT-compiled query execution, we also develop a novel approach to cost modeling and subsequent storage layout optimization. Our evaluation shows that the JiT-based processor maintains the bandwidth savings of previously presented hybrid query processors but outperforms them by two orders of magnitude due to increased CPU efficiency.
Application of extracellular flux analysis for determining mitochondrial function in mammalian oocytes and early embryos (2019)

1. Abstract Background Mitochondria provide the major source of ATP for mammalian oocyte maturation and early embryo development. Oxygen Consumption Rate (OCR) is an established measure of mitochondrial function. OCR by mammalian oocytes and embryos has generally been restricted to overall uptake and detailed understanding of the components of OCR dedicated to specific molecular events remains lacking. Results Here, extracellular flux analysis (EFA) was applied to small groups of bovine, equine, mouse and human oocytes and bovine early embryos to measure OCR. Using EFA, we report the changes in mitochondrial activity during the processes of oocyte maturation, fertilization, and pre-implantation development to blastocyst stage in response to physiological demands in mammalian embryos. Crucially, we describe the real time partitioning of overall OCR to spare capacity, proton leak, non-mitochondrial and coupled respiration – showing that while there are alterations in activity over the course of development to respond to physiological demand, the overall efficiency is unchanged. Conclusion EFA is shown to be able to measure mitochondrial function in small groups of mammalian oocytes and embryos in a manner which is robust, rapid and easy to use. EFA is non-invasive and allows real-time determination of the impact of compounds on OCR, facilitating an assessment of the parameters of mitochondrial activity. This provides proof-of-concept for EFA as an accessible system with which to study oocyte and embryo metabolism.
DEC‐205 mediates antigen uptake and presentation by both resting and activated human plasmacytoid dendritic cells (2011)

DEC-205 is a type I C-type lectin receptor (CLR) that is expressed on various APC subsets and has been suggested to bind necrotic and apoptotic cells. Here we study DEC-205 characteristics in plasmacytoid DCs (pDCs) obtained from healthy individuals and assess its ability to mediate antigen presentation by isolating sufficient numbers of pDCs from apheresis material obtained from stage III/IV melanoma patients. The results demonstrate that DEC-205 is expressed on human pDCs. Internalization of DEC-205 after antibody ligation is clathrin- and dynamin-dependent as it is blocked by hypertonic shock or by inhibition of dynamin activity. Antibody targeting to DEC-205 does not affect TLR-induced expression levels of co-stimulatory and MHC molecules, but clearly impairs TLR-induced IFN-α secretion by 40%. We observed that TLR-mediated signaling increases DEC-205 expression levels without affecting receptor internalization. Moreover, human pDCs retained the capacity to present antigens via DEC-205 following TLR activation.
Spectral- and Power-Efficient Data Multiplexing Format Based on Code-Shift-Keying (2011)

This paper proposes a spectral- and power- efficient code division multiplexing (CDM) scheme based on code shift keying (CSK) for the down-link of a communication system subject to additive Gaussian noise (e.g., the forward link of a satellite communication system). In a CSK system, each active user is assigned a set of sequences taken from Gold codes and their cyclic shifts. Spectral efficiency can be achieved by multiplexing several CSK modulators. We first define the corresponding Maximum-Likelihood (ML) decoder, showing that it can be efficiently implemented through a Sphere Decoding (SD) algorithm. An approximate performance analysis of the proposed scheme is given, and validated through numerical simulations, showing that larger spectral efficiencies also lead to increased power efficiencies.
Tissue reconstruction with nonpenetrating arcuate-legged clips. Potential endoscopic applications. (1992)

A new system for tissue approximation consisting of a nonpenetrating arcuate-legged clip applied to everted tissue edges to form an elastomeric flanged joint is described. The flanged joint has unusual physical and morphologic properties. Novel systems for tissue eversion, clip application and clip removal have been tested at the micro scale in blood vessels and the rat vas deferens (vasovasostomy). Human applications have been successful (cerebrovascular reconstruction, free-flap transfer, skin grafting, A-V access). The system is biologically and technically equivalent to or superior to the needle-and-suture technique. Avoidance of intimal or mucosal penetration or intraluminal foreign body is associated with prompt wound healing and the reconstitution of tubular integrity. The system is readily adaptable for endoscopic surgical reconstructions, providing the surgeon with enhanced reconstructive abilities.
Search for nonpointing photons in the diphoton andETmissfinal state ins=7  TeVproton-proton collisions using the ATLAS detector (2013)

A search has been performed for photons originating in the decay of a neutral long-lived particle, exploiting the capabilities of the ATLAS electromagnetic calorimeter to make precise measurements of the flight direction of photons, as well as the calorimeter's excellent time resolution. The search has been made in the diphoton plus missing transverse energy final state, using the full data sample of 4:8 fb 1 of 7 TeV proton-proton collisions collected in 2011 with the ATLAS detector at the LHC. No excess is observed above the background expected from Standard Model processes. The results are used to set exclusion limits in the context of gauge mediated supersymmetry breaking models, with the lightest neutralino being the next-to-lightest supersymmetric particle and decaying with a lifetime in excess of 0.25 ns into a photon and a gravitino.