gebhart/patrepeval huggingface dataset:
Human tau becomes phosphorylated and forms filamentous deposits when overexpressed in lamprey central neurons  <i>in situ</i> (1997)

Microinjection of plasmids encoding human tau (htau) protein into identified lamprey reticulospinal neurons (anterior bulbar cells, or ABCs) in situ induces chronic htau expression. htau protein is transported to both the axon and dendrites of expressing ABCs by mechanisms that require the C-terminal domain of htau protein but do not require directed htau mRNA transport. htau becomes phosphorylated at the PHF-1 (Ser-396/404) and TAU-1/AT8 (Ser-199/202) epitopes throughout ABCs with heavy htau accumulations; many such cells also exhibit degenerative changes, which include the development of extracellular htau deposits. Finally, expression of htau protein fused to green fluorescent protein induced the somatodendritic accumulation of filaments containing htau when examined by immunoelectron microscopy. These results suggest that chronic expression of htau in lamprey ABCs may be useful for studying cellular mechanisms underlying tau hyperphosphorylation and filament formation in vertebrate central neurons in situ.
A low-noise CMOS amplifier for medical imaging (2010)

A presente dissertação aborda o projecto de um frontend analógico integrado para sincronização e amplificação de sinais produzidos por um fotomultiplicador de silício. A solução proposta pretende possibilitar medidas de tempo com resoluções na ordem dos picosegundos, para implementação em equipamentos compactos dedicados à Tomografia por Emissão de Positrões, com capacidade para medida do tempo de voo de fotões (TOFPET). O canal de frontend completo foi implementado em tecnologia CMOS 130nm, e compreende blocos de préamplificação, integração de carga, equilíbrio dinâmico do ponto de operação, bem como circuitos geradores de correntes de referência, para uma área total em silício de 500x90 μm. A discussão de resultados é baseada em simulações póslayout, e as linhas de investigação futuras são propostas.
Treatment of Anxiety Using Fenobam (a Nonbenzodiazepine) in a Double-Blind Standard (Diazepam) Placebo-Controlled Study (1982)

PECKNOLD, JOHN C. MD; McCLURE, DAVID JOSEPH MD; APPELTAUER, LUIS MD; WRZESINSKI, LILLIAN MA; ALLAN, TERESA BA Author Information
Design Consideration to Reduce Cogging Torque in Axial Flux Permanent-Magnet Machines (2007)

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> In designing new topologies for permanent-magnet machines based on rare earth magnets, it is necessary to diminish the undesired cogging torque. This paper presents a 3-D finite-element analysis to evaluate the effect of magnet shape and stator displacement on cogging torque reduction, for axial flux machines. It analyzes the final electromagnetic torque for the proposed configurations. Finally, it presents the resultant cogging torque waveform for a 5.0 kW prototype, based on our optimization techniques. </para>
The First Synthesis of the Bis(indole) Marine Alkaloid Rhopaladin D (2000)

The first synthesis (six steps) of the bis(indole) alkaloid Rhopaladin D isolated from the marine tunicate Rhopalaea sp. is described. The key step, construction of the central imidazolinone ring, is based on the aza-Wittig reaction of the iminophosphorane derived from the α-azido-β-(3-indolyl)propenamide and indolyl-3-glyoxylyl chloride in the presence of polymer-supported BEMP as a base.
Chapter 1. Introduction (1997)

G. A. Webb, Annu. Rep. Prog. Chem., Sect. C: Phys. Chem., 1997, 93, 1 DOI: 10.1039/PC093001
Electrophoresis of DNA in agarose gels, polyacrylamide gels and in free solution (2009)

This review describes the electrophoresis of curved and normal DNA molecules in agarose gels, polyacrylamide gels and in free solution. These studies were undertaken to clarify why curved DNA molecules migrate anomalously slowly in polyacrylamide gels but not in agarose gels. Two milestone papers are cited, in which Ferguson plots were used to estimate the effective pore size of agarose and polyacrylamide gels. Subsequent studies on the effect of the electric field on agarose and polyacrylamide gel matrices, DNA interactions with the two gel matrices, and the effect of curvature on the free solution mobility of DNA are also described. The combined results suggest that the anomalously slow mobilities observed for curved DNA molecules in polyacrylamide gels are primarily due to preferential interactions of curved DNAs with the polyacrylamide gel matrix; the restrictive pore size of the matrix is of lesser importance. In free solution, DNA mobilities increase with increasing molecular mass until leveling off at a plateau value of (3.17 +/- 0.01) x 10(-4) cm2/V s in 40 mM Tris-acetate-EDTA buffer at 20 degrees C. Curved DNA molecules migrate anomalously slowly in free solution as well as in polyacrylamide gels, explaining why the Ferguson plots of curved and normal DNAs containing the same number of base pairs extrapolate to different mobilities at zero gel concentration.
Grain boundaries in semiconductors (1985)

This review presents the available experimental and theoretical understanding on the structure and electronic properties of grain boundaries in semiconducting materials. High-resolution electron microscope images of interfaces are interpreted within the framework of the structural unit model of grain boundaries, and the electronic properties of the grain boundaries discussed with relation to the popular symmetric Schottky barrier model for charge trapping and potential barrier formation. It is shown that these models give some limited understanding of the physical processes that occur at grain boundaries in elemental semiconductors, but that in compound semiconducting materials the effects of non-stoichiometry at the boundary regions must also be considered. Segregation of impurity and dopant species to the boundaries can have significant influence on their electrical properties, and the question of what structural or chemical features are responsible for the observed properties is posed. Diffusion at semiconductor grain boundaries is also discussed, and finally the electrical properties of zinc oxide varistor material are presented in the light of the models of carrier interactions with grain boundaries.
A GPS navigation system with QR code decoding and friend positioning in smart phones (2010)

Global Positioning System (GPS) navigation is a popular assistant during a trip. By using a GPS navigation system, the travelers can easily and quickly arrive to the destination in an unfamiliar area. However, there is no free and open-source GPS navigation system which integrates many useful applications. Thus, this paper proposes a GPS navigation system on the Android platform, called Android Mobile Navigation System (AMNS). AMNS not only provides users the GPS navigation function, but also supports Quick Response (QR) code decoding and friend positioning. Furthermore, AMNS is free and open-source software, so service providers or developers can easily extend their own services on this system.
Phase-locked loop for grid-connectedthree-phase power conversion systems (2000)

Analysis and design of a phase-locked loop (PLL) is presented for the power factor control of grid-connected three-phase power conversion systems. The dynamic characteristics of the closed loop PLL system with a second order are investigated in both continuous and discrete-time domains, and the optimisation method is discussed. In particular, the performance of the PLL in the three-phase system is analysed under the distorted utility conditions such as the phase unbalancing, harmonics, and offset caused by nonlinear loads and measurement errors. The PLL technique for the three-phase system is implemented in software of a digital signal processor to verify the analytic results, and the experiments are carried out for various utility conditions. This technique is finally applied to the grid-connected photovoltaic power generation system with the current-controlled PWM inverter as a subpart for generating the current reference of the inverter. The experimental results demonstrate its phase tracking capability in the three-phase grid-connected operation.
Examination of the Factor Structure and Concurrent Validity of the Langer Mindfulness/Mindlessness Scale (2010)

Langer's theory of mindfulness proposes that a mindful person seeks out and produces novelty, is attentive to context, and is flexible in thought and behavior. In three independent studies, the factor structure of the Langer Mindfulness/Mindlessness Scale was examined. Confirmatory factor analysis failed to replicate the four-factor model and a subsequent exploratory factor analysis revealed the presence of a two-factor (mindfulness and mindlessness) solution. Study 2 demonstrated that the two factors assessed discrete constructs and were not merely products of acquiescence. Support was also found for a nine-item, one-factor model comprised solely of mindfulness items. On comparing models, Study 3 suggested the superiority of the one-factor mindfulness model. Finally, a preliminary investigation of the concurrent validity of the revised nine-item Langer Mindfulness/Mindlessness Scale is presented. The current article offers researchers a revised version of a mindfulness measure derived from a cognitive perspective.
Efficient Hardware Implementations for the Gaussian Normal Basis Multiplication Over GF(2163) (2007)

This article presents efficient hardware implementations for the Gaussian normal basis multiplication over GF(2 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">163</sup> ). Hardware implementations of GF(2 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">m</sup> ) multiplication algorithms are suitable to design elliptic curve cryptoprocessors, which allow that elliptic curve based cryptosystems implemented in hardware provide more physical security and higher performance than software implementations. In this case, the multipliers were designed using conventional, modified and fast- parallel algorithms for the Gaussian normal basis multiplication, the synthesis and simulation were carried out using Quartus II of Altera, and the designs were synthesized on the device EP2A15B724C7. The simulation results show that the multipliers designed present a very good performance using small area.
Laser balloon angioplasty. A new approach to abrupt coronary occlusion and chronic restenosis. (1990)

Abrupt coronary occlusion and long-term restenosis continue to be the major problems associated with percutaneous transluminal coronary angioplasty (PTCA). Laser balloon angioplasty (LBA) is a technique designed to potentially alleviate these problems by sealing arterial dissections, smoothing the luminal surfaces, dehydrating thrombi, and reducing the elastic properties that tend to recoil the stretched artery to its original state. During LBA, laser energy is delivered circumferentially by a 100-microns optical fiber that terminates in a central diffusing tip within an angioplasty balloon. LBA is performed for 20 seconds during the final inflation of the angioplasty balloon. Achieved with decremental ramped laser dosimetry, Nd:YAG laser energy has been shown to be effective in welding experimental arterial dissections over a therapeutic temperature range of 95 degrees-120 degrees C. LBA treatment of rabbit iliac arteries has been superior to balloon angioplasty in inhibiting elastic recoil and causing acute and long-term luminal increment. LBA has also been effective for sealing acute dissections in atherosclerotic rabbit iliac arteries. Additionally, in a canine model, safety in the coronary circulation has been shown, that is, even at 1 month after LBA, angiography demonstrated a cast of the LBA balloon without luminal compromise. Since March 1988, more than 250 patients with symptomatic coronary artery disease have been treated with LBA with nearly uniform clinical success, including frequent reversal of abrupt closure. LBA seems to be a safe modality that may decrease the need for emergency operative procedures and late coronary revascularization after PTCA.
Purification and Characterization of DNA Helicase BstH2 from Bacillus Stearothermophilus. (1997)

In the purification of DNA helicase BstH1 we have partially purified the second DNA helicase BstH2 from Bacillus Stearothermophilus through Polymin P precipitation, ammonia sulfate precipitation and chromatographic steps with DEAE-cellulose, phosphocellulose, Blue-Sepharose, FPLC Superose 12, Mono Q and second Mono Q. The ATPase activity of BstH2 depends on Mg(2+) and is differentially stimulated by different types of nucleic acids. BstH2 has a maximal ATPase activity at 55 degrees. The ATPase activity is greatly inhibited by E. coli SSB or higher ionic strength. The DNA helicase activity of BstH2 depends on ATP and Mg(2+). BstH2 can unwind partial duplex DNA as well as blunt-ended duplex DNA. E. coli SSB stimulates the unwinding reaction catalyzed by BstH2.
<b>Putting the “Bio” in Political Science</b> (1990)

An abstract is not available for this content so a preview has been provided. Please use the Get access link above for information on how to access this content.
Chest Compression and Ventilation Rates during Cardiopulmonary Resuscitation: The Effects of Audible Tone Guidance (1995)

The majority of Basic Cardiac Life Support--certified health care professionals did not perform CPR according to AHA-recommended guidelines. The use of audible tones to guide chest compression resulted in significantly higher chest compression rates and ETCO2 levels.
Synthesis and Properties of a Luminescent Europium Complex Containing a New Second Ligand (2009)

A luminescent Eu(Ⅲ) complex,Eu(Ⅲ)(DBM)3BIOQ,was synthesized with dibenzoylmethane(DBM) as the first ligand and a new ligand,e.g.2-(benzimidazol-2-yl)-8-octyloxyquinoline(BIOQ),as the second ligand.The Eu(Ⅲ) complex exhibits relatively high thermal stability with a melting point of 235℃ and a decomposition temperature(onset) of 252℃.The energy levels of HOMO,LUMO and the energy gap(Eg) are-6.12,3.06 and 3.06 eV respectively.The emission spectrum of the complex in solid state(λex=350 nm) exhibits a single and symmetric emission band at 611 nm with a full width at half maximum of 4.7 nm.
Real-time routing in mobile networks using GPS and GIS techniques (2005)

A discussion of employing the Global Positioning System (GPS) and geographic information system (GIS) technologies for packet routing strategies in ad-hoc mobile wireless networks is presented. Mobile network architectures and existing packet routing schemes are briefly discussed to illustrate how GPS and GIS techniques can be beneficially employed. Telegeoinformatics, a new discipline that combines wireless communications with GPS and GIS is presented, along with its potential to address several packet routing issues. This paper also presents open issues and research topics in this area that are currently receiving attention.
Statistical 3-D Beamforming for Large-Scale MIMO Downlink Systems Over Rician Fading Channels (2016)

In this paper, we investigate a downlink transmission algorithm for single-cell multiuser systems with two-dimensional (2-D) large-scale antenna array at the base station (BS) over Rician fading channels. We first derive some properties of the channel's line-of-sight (LOS) component in the large-scale antenna array scenario. Next, based on these properties and under the assumption of only statistical channel state information (CSI), i.e., the LOS component and Rician $K$-factor, at the BS, we derive the optimal beamforming vector for each user in maximizing an approximation of the ergodic sum rate. The main guidelines for user scheduling are also presented. Then, a three-dimensional (3-D) beamforming downlink transmission algorithm exploiting only the statistical CSI of each user is proposed. For this algorithm, we derive an exact analytical closed-form expression for the achievable ergodic rate and present tractable approximations. Based on our analysis, we gain some valuable insights. The proposed algorithm is shown to perform well in achieving considerable sum rate while requiring much less CSI at the BS. It requires three scalar values at the BS for each user, and can achieve an ergodic sum rate closer to the ergodic sum rate achieved by the matched-filter precoding with perfect CSI at the BS.
Untersuchungen an den Haspeln des Bandeisen-Walzwerkes (1952)

Unsere Untersuchungen wurden an einem Haspel durchgeführt, bei dem Bandeisen für 3/4 “)-Rohr gewickelt wurde. Die bisher gültige Ablösungsregelung besagt, dass beim Walzen von Bandeisen für 1 Zoll-Rohre und darüber 30 Minuten Arbeit und 30 Minuten Pause, unter 1 Zoll bis 3/8 Zoll-Rohre 40 Minuten Arbeit und 20 Minuten Pause und unter 3/8 Zoll-Rohre 80 Minuten Arbeit und 20 Minuten Pause einzuhalten sind.
Unicompartmental Knee Replacement (2001)

Within the past 5 years, there has been a resurgence of interest in doing unicompartmental knee replacement, which was encouraged by reports of easier recuperation, decreased hospital stays, and good functional results. Before doing a unicompartmental replacement, the surgeon should answer four important questions: Is the disease truly unicompartmental? Can this be determined on a clinical examination and standard radiographs, or are more sophisticated studies such as a bone scan or an arthroscopy required? Second, if the patient does have unicompartmental disease are there any specific contraindications to the surgery? The absence of an intact anterior cruciate ligament, and presence of an inflammatory arthroplasty have been said to be contraindications. Is crystalline arthropathy a contraindication? What are the limits of fixed deformity in varus or flexion that can be corrected by a unicompartmental replacement? Overcorrection of angular deformities has in the past led to increased wear of the opposite compartment. Therefore, how much should the knee be corrected? What surgical technique should the surgeon consider? Should the tibial components be inset into the bone or onset. Although it has been alleged that instrumentation is not necessary, obtaining proper alignment often cannot be obtained without the use of instruments. Finally, should the implants be inserted with or without acrylic cement, and what is the minimal polyethylene thickness that is permissible?
FARM MECHANIZATION EXTENSION PROJECT MANAGEMENT AS NEW PARADIGM FOR SUSTAINABLE SERICULTURE DEVELOPMENT IN KARNATAKA (2016)

Farm Mechanization Extension project in the economic sense directly or indirectly adds to the economy of the Nation. However, an introspection of the Farm Mechanization Extension project performance clearly indicates that the situation is far from satisfactory in sericulture. Most of the major and critical Farm Mechanization Extension projects in sericulture public sector are plagued by tremendous time and cost overruns.In this Farm Mechanization Extension project management as new paradigm for sustainable sericulture development in Karnataka . Feasibility study forms the backbone of Farm Mechanization Extension project formulation and presents a balanced picture incorporating all aspects of possible concern. The project feasibility studies focus on Economic and Market analysis, Technical analysis, Market analysis, Financial analysis, Economic benefits, Project risk and uncertainty and Management Aspects. The Project Formulation involves following steps are opportunity studies / support studies, identification of product / service, pre – feasibility study, feasibility study (Techno- economic feasibility), project appraisal. Some of the commonly used techniques for financial analysis in this research are like-Payback period, Return on investment (ROI), Net Present value (NPV), Profitability index (PI)/ Benefit Cost Ratio and Internal Rate of Return (IRR).The Farm Mechanization Extension Project appraisal is the project of critical examination and analysis of the proposal in totality. The appraisal goes beyond the analysis presented in the feasibility report. At this stage, if required compilation of additional information and further analysis of Farm Mechanization Extension Project dimensions are undertaken. At the end of the process an appraisal note is prepared for facilitating decision on the Farm Mechanization Extension Project implementation. The paper concluded as a Feasibility study forms the backbone of Farm Mechanization Extension Project formulation Farm Mechanization Extension Project ideas are to be examined in the light of internal constraints, external constraints, environment and limitations of the Farm Mechanization Extension Project sponsoring body. The Pre-Investment phase comprises several stages – identification of investment opportunities, preliminary selection of projects (pre feasibility), project feasibility (project formulation) and the final evaluation and investment decisions. However farm mechanization extension appraisal concentrates on aspects like market appraisal, technical appraisal, environmental appraisal, financial appraisals, economic appraisals, managerial appraisals and social cost benefit analysis.  Assume importance in farm mechanization concept formulation and invest decisions. Further after project appraised and investment decisions are made a determined farm mechanization extension project report is prepared.
Fabrication and SERS Performance of Silver-Nanoparticle-Decorated Si/ZnO Nanotrees in Ordered Arrays (2010)

Highly ordered treelike Si/ZnO hierarchical nanostructures are successfully prepared in a large scale by combining two common techniques, viz., photolithography-assisted wafer-scale fabrication of Si nanopillars and bottom-up hydrothermal growth of ZnO nanorods. Silver nanoparticles are decorated onto the nanotrees by photochemical reduction and deposition. The Si/ZnO/Ag hybrid nanotrees are employed as SERS-active substrates, which exhibit good performance in terms of high sensitivity and good reproducibility. In addition to the SERS application, such ordered Si/ZnO arrays might also find potential applications in light-emitting diodes and solar cells.
Finding the Probability of Doors Being Open Using a Continuous Position Logger (2014)

Data for the probability that a doors are open or closed in the event of a fire is sparse. The literature only presents a snap-shot rather than how the position of the door has changed over time. This paper describes the development of a low-cost, unobtrusive logging device that can continuously monitor the position of a door for extended periods. The devices were used to record 180 days of data from 52 doors located in different types of sleeping occupancies: hotels, apartments, dormitories and rest homes. Results were obtained for the probability that doors were open during day-time and night-time; and also during weekdays and weekends. Overall a probability distribution for the fraction of time that a door was found to be open is an inverse Gaussian function with mean = 0.104 and shape factor l = 0.0117.