gebhart/patrepeval huggingface dataset:
Chip-Scale Controlled Storage All-Optical Memory (2007)

Abstract : Goal of the project was to demonstrate a semiconductor waveguide device suitable for use as an all-optical buffer with a slow down factor of 1000 at room temperature. Theoretical and experimental research was performed to show the feasibility of slow light in semiconductor quantum wells. Prototype GaAs quantum well devices were fabricated, and characterized at both cryogenic and ambient laboratory temperatures. Mechanisms such as coherent population oscillation (CPO) and electromagnetically induced transparency (EIT) were explored. The results included several of the first ever achieved experimental and theoretical results on slow light, including the demonstration of a factor of one million times reduced light speed in semiconductor quantum wells at low temperature, a reduction of approximately 600 at room temperature, and the first observation of EIT in semiconductor quantum wells. Wide-spread interest in the subject led to an international conference starting in 2006, and helped spur new research into all-optical buffers.
Performance of the multilayer perceptron-based DFE with lattice structure in linear and non-linear channels (2001)

The effect of whitening the input data in a multilayer perceptron (MLP)-based decision feedback equalizer (DFE) is evaluated. It is shown that whitening the received data employing adaptive lattice channel equalization algorithms improves the convergence rate and bit error rate performances of MLP-based decision feedback equalizers. The consistency in performance is observed in time-invariant, time-varying and non-linear channels.
Multidimensional MRI for characterization of subtle axonal injury accelerated using an adaptive nonlocal multispectral filter (2021)

ABSTRACT Multidimensional MRI is an emerging approach that simultaneously encodes water relaxation ( T 1 and T 2 ) and mobility (diffusion) and replaces voxel-averaged values with subvoxel distributions of those MR properties. While conventional (i.e., voxel-averaged) MRI methods cannot adequately quantify the microscopic heterogeneity of biological tissue, using subvoxel information allows to selectively map a specific T 1 - T 2 -diffusion spectral range that corresponds to a group of tissue elements. The major obstacle to the adoption of rich, multidimensional MRI protocols for diagnostic or monitoring purposes is the prolonged scan time. Our main goal in the present study is to evaluate the performance of a nonlocal estimation of multispectral magnitudes (NESMA) filter on reduced datasets to limit the total acquisition time required for reliable multidimensional MRI characterization of the brain. Here we focused and reprocessed results from a recent study that identified potential imaging biomarkers of axonal injury pathology from the joint analysis of multidimensional MRI, in particular voxelwise T 1 - T 2 and diffusion- T 2 spectra in human Corpus Callosum, and histopathological data. We tested the performance of NESMA and its effect on the accuracy of the injury biomarker maps, relative to the co-registered histological reference. Noise reduction improved the accuracy of the resulting injury biomarker maps, while permitting data reduction of 35.7% and 59.6% from the full dataset for T 1 - T 2 and diffusion- T 2 cases, respectively. As successful clinical proof-of-concept applications of multidimensional MRI are continuously being introduced, reliable and robust noise removal and consequent acquisition acceleration would advance the field towards clinically-feasible diagnostic multidimensional MRI protocols.
Plumbagin triggers redox-mediated autophagy through the LC3B protein in human papillomavirus-positive cervical cancer cells (2020)

In addition, a Cytoscape-based protein-PL interaction network analysis provided very strong evidence in support of the specific mode of cell death in the context of autophagy, which has also been one of the desired endpoints in human papillomavirus-positive cervical cancer therapy and apoptotic cell death-resistant cancer treatment. Thus, this study is the first to test PL against the SiHa cervical cancer cell line, providing leads for further testing on non-apoptotic cell death for application in cervical cancer management.
A dip coating process for large area silicon-doped high performance hematite photoanodes (2013)

A facile and low-cost dip-coating process for the deposition of silicon doped hematite films (Si:α-Fe2O3) for hydrogen production by solar water splitting in photo-electrochemical cells (PEC) is presented. The precursors include iron nitrate, oleic acid, tetraethyl orthosilicate (TEOS) and tetrahydrofuran as dispersion agent. Sequential dip coating on transparent conducting oxides glass substrates with heat treatment steps at 500 °C and 760 °C yields mesoporous Si:α-Fe2O3 with a roughness factor of 17 and photocurrent densities &amp;gt;1 mA/cm2 at 1.23 V vs. reversible hydrogen electrode with SiOx underlayer and surface modification. A PEC demonstrator with 80 cm2 active area in 1 M potassium hydroxide yields a photocurrent of 35 mA at 1.5 AM irradiation with the corresponding hydrogen evolution at a Pt wire counter electrode.
Associations Between Television Viewing Time and Overall Sitting Time with the Metabolic Syndrome in Older Men and Women: The Australian Diabetes Obesity and Lifestyle Study (2011)

For older adults, high levels of sedentary behavior were associated with greater prevalence of the metabolic syndrome; reducing prolonged overall sitting time may be a feasible way to improve metabolic health.
Partial methane oxidation into synthesis gas over catalysts supported on meshed metallic materials (2013)

Comparative tests of metal catalysts (Pd, Ni, Co, and Cu on a metal gauze and FeCrAl alloy foil) obtained in two ways—thermochemical and electrochemical metal deposition—have been carried out in order to develop efficient catalysts supported on meshed metallic materials for partial methane oxidation into synthesis gas. The tests have been performed in the 680–1000°C range in a flow reactor (10 mm i.d.) with a catalyst in the form of a rolled metal gauze or FeCrAl foil mounted inside. The metallic supports (gauze and foil) with metals (Pd, Ni) supported on them are promising as catalysts for producing synthesis gas by partial methane oxidation in a narrow range of oxygen : methane molar ratios (O2 : CH4 = 0.45–0.55). An SEM examination of the catalyst surfaces has demonstrated that the thermochemical deposition of Group VIII metals yields a more branched active metal surface that ensures almost 100% methane conversion at a CO selectivity of >90% even at 900°C.
Broadband Wireless Communications Business: An Introduction to the Costs and Benefits of New Technologies (2006)

List of Figures. List of Tables. Preface. Acknowledgements. 1. Background. 1.1 Fixed-line Data Communications. 1.2 Mobile Communications. 1.3 Wireless Data Communications. 1.4 BroadbandWireless. 1.5 DuplexModes. 1.6 Voice to Data. 1.7 Traffic Profiles. 1.8 Access Technologies. 1.9 Telecommunications Operator Business. Further Reading. 2. Wireless Communications. 2.1 Signal Fading. 2.2 Modulation. 2.3 Equalisation. 2.4 Single Carrier andMulti Carrier. 2.5 Diversity Reception. 2.6 Channel Coding. 2.7 From Circuit Switched to Packet Switched. 2.8 System Capacity. 2.9 Coverage. Further Reading. 3. Enhancing Technologies. 3.1 Frequency Reuse. 3.2 Capacity Limit. 3.3 Signal and Interference. 3.4 Advanced Antennas. 3.5 Coverage Extension. 3.6 Interference Reduction. 3.7 Hybrid ARQ. 3.8 MIMO Antennas. 3.9 Voice Coding. Further Reading. 4. Cellular Topologies. 4.1 Cell Structure. 4.2 Wireless LAN Cellular Structure. 4.3 Distributed Base Stations. 4.4 Mini-cell Structure. 4.5 Handover. 4.6 Ad hoc Networking. Further Reading. 5. Cost of Spectrum. 5.1 Voice Systems. 5.2 Data Systems. 5.3 Data Throughput Efficiency. 5.4 Spectrum Cost. Further Reading. 6. Cost of Equipment. 6.1 Base Station Structure. 6.2 IEEE 802.11 Wireless LAN Access Point. 6.3 Network Nodes Costs. 6.4 End-user Equipment. Further Reading. 7. Network Design and Operation. 7.1 Network Design and Planning. 7.2 Site Cost. 7.3 Backbone Fixed Connection. 7.4 Networking Based on Access Points. 7.5 Customer Costs. 7.6 Other Operating Costs. 7.7 Wholesale Operators - Network-less Operators. Further Reading. 8. Services. 8.1 Revenue Flow. 8.2 Value Chain. 8.3 Service Classifications. 8.4 Total Revenue Forecast. 8.4.1 Flat rate. Further Reading. 9. Scenarios. 9.1 Technologies. 9.2 Market Size. 9.3 Services and Revenues. 9.4 Service Classification. 9.5 Costs. 9.6 Cash Flow Scenarios. Further Reading. Glossary. Index.
Cross-verification of independent quantum devices (2021)

Quantum computers are on the brink of surpassing the capabilities of even the most powerful classical computers, which naturally raises the question of how one can trust the results of a quantum computer when they cannot be compared to classical simulation Here, we present a cross-verification technique that exploits the principles of measurement-based quantum computation to link quantum circuits of different input size, depth, and structure. Our technique enables consistency checks of quantum computations between independent devices, as well as within a single device. We showcase our protocol by applying it to five state-of-the-art quantum processors, based on four distinct physical architectures: nuclear magnetic resonance, superconducting circuits, trapped ions, and photonics, with up to six qubits and up to 200 distinct circuits.
Quantitative imaging of intracellular signaling for personalized pancreatic cancer therapy in an in vivo avatar (Conference Presentation) (2017)

Pancreatic ductal adenocarcinomas (PDAC) are notoriously difficult to treat and in general, molecular targeted therapies have failed even when the targeted protein is overexpressed in the tumor tissue. Genetic mutations in extracellular receptors and downstream signaling proteins (i.e., RAS signaling pathway) and convoluted intracellular cross-talk between cell signaling pathways are likely reasons that these promising therapies fail. Monitoring the complex relationship between intracellular protein signaling is difficult and to-date, standard techniques that are used (Western blot, flow cytometry, immunohistochemistry, etc.) are invasive, static and do not accurately represent in vivo structure-function relationships. Here, we describe the development of an in ovo avatar using patient derived tumors grown on the chicken chorioallantoic membrane (CAM) and the novel fluorescence-based Quantitative Protein Expression Tracking (QUIET) methodology to bridge the gap between oncology, genomics and patient outcomes. Previously developed paired-agent imaging, was extended to a three-compartment model system in QUIET, which utilizes three types of imaging agents: novel fluorophore conjugated cell permeable targeted and untargeted small molecule paired-agents, in addition to a tumor perfusion agent that is not cell membrane permeable. We have demonstrated the ability to quantify the intracellular binding domain of a trans-membrane protein in vitro using cell permeable fluorescent agents (erlotinib-TRITC and control isotype-BODIPY FL). In addition, we have demonstrated imaging protocols to simultaneously image up to 6 spectrally distinct organic fluorophores in in ovo avatars using the Nuance EX (Perkin Elmer) and established proof-of-principle intracellular and extracellular protein concentrations of epidermal growth factor receptor using QUIET and traditional paired-agent imaging.
Type V OI Primary Osteoblasts Display Increased Mineralization Despite DecreasedCOL1A1Expression (2014)

This study demonstrates that type V OI mineralization has a gain-of-function mechanism at the osteoblast level, which likely underlies the overactive tissue mineralization seen in patients. Decreased type I collagen expression, secretion, and matrix incorporation establish type V OI as a collagen-related defect.
Operações Paralelas sobre Bases Massivas de Strings (2013)

Este trabalho analisa operações básicas comumente utilizadas em algoritmos de recuperação de dados textuais com o intuito de se beneficiar da arquitetura paralela CUDA da NVIDIA. Quatro operações diferentes foram implementadas e comparadas com suas implementações em CPU: busca exata e aproximada de strings, substituição de caracteres e cálculo de frequência de termos. Diferentes testes foram realizados variando o tamanho da base de dados, o tamanho da palavra procurada e o número de ocorrências da mesma na base. Foi possível obter uma melhora de desempenho na maioria dos cenários analisados. Uma das operações foi usada para buscar palavras no banco de dados do Diário Oficial da União, sendo possível obter um speedup de 13 vezes quando comparado com a solução online em CPU.
Efficient gene transfer using unilamellar fusogenic liposomes. (1994)

We have developed fusogenic liposomes with virus envelope proteins on the surface. These liposomes can introduce their contents (DNA, RNA, and protein) into cell cytoplasm directly by membrane fusion in vitro and in vivo. The liposomes can fuse with cell membrane as efficient as virus particles and can maintain their activity indefinitely in liquid nitrogen. Investigation of new system for future gene therapy is now under way based on these fusogenic liposomes.
Massive MIMO with multi-cell MMSE processing: exploiting all pilots for interference suppression (2017)

A new state-of-the-art multi-cell minimum mean square error (M-MMSE) scheme is proposed for massive multiple-input-multiple-output (MIMO) networks, which includes an uplink MMSE detector and a downlink MMSE precoder. Contrary to conventional single-cell schemes that suppress interference using only channel estimates for intra-cell users, our scheme shows the optimal way to suppress both intra-cell and inter-cell interference instantaneously by fully utilizing the available pilot resources. Specifically, let K and B denote the number of users per cell and the number of orthogonal pilot sequences in the network, respectively, where β=B/K is the pilot reuse factor. Our scheme utilizes all B channel directions that can be estimated locally at each base station, to actively suppress both intra-cell and inter-cell interference. Our scheme is practical and general, since power control, imperfect channel estimation, and arbitrary pilot allocation are all accounted for. Simulations show that significant spectral efficiency (SE) gains are obtained over the conventional single-cell MMSE scheme and the multi-cell zero-forcing (ZF) scheme. Furthermore, large-scale approximations of the uplink and downlink signal-to-interference-and-noise ratios (SINRs) are derived, which are tight in the large-system limit. These approximations are easy to compute and very accurate even for small system dimensions. Using these SINR approximations, a low-complexity power control algorithm is further proposed to maximize the sum SE.
Exact signal recovery from sparsely corrupted measurements through the Pursuit of Justice (2009)

Compressive sensing provides a framework for recovering sparse signals of length N from M ¿ N measurements. If the measurements contain noise bounded by ¿, then standard algorithms recover sparse signals with error at most C¿. However, these algorithms perform suboptimally when the measurement noise is also sparse. This can occur in practice due to shot noise, malfunctioning hardware, transmission errors, or narrowband interference. We demonstrate that a simple algorithm, which we dub <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Justice Pursuit</i> (JP), can achieve exact recovery from measurements corrupted with sparse noise. The algorithm handles unbounded errors, has no input parameters, and is easily implemented via standard recovery techniques.
Comparison of deep level spectra in p‐type and n‐type GaN grown by molecular beam epitaxy [phys. stat. sol. (b) 244, No. 6, 1867–1871 (2007)] (2007)

Abstract The following author has to be added to the list of authors in phys. stat. sol. (b) 244 , 1867 (2007): A. Corrion, Department of Materials and Electrical and Computer Engineering, University of California, Santa Barbara, USA. (© 2007 WILEY‐VCH Verlag GmbH &amp; Co. KGaA, Weinheim)
Privacy, Wearable Computers, And Recording Technology (2005)

Technology is rarely neutral. Wearable computer technology is opening up capabilities to record more details of "reality" from life and work experiences than have ever been possible. Although this area is new, privacy issues have already surfaced and potential opportunities for new intrusions or protections are on the horizon.
Differentially Private Stochastic Gradient Descent for in-RDBMS Analytics. (2016)

In-RDBMS data analysis has received considerable attention in the past decade and has been widely used in sensitive domains to extract patterns in data using machine learning. For these domains, there has also been growing concern about privacy, and differential privacy has emerged as the gold standard for private data analysis. However, while differentially private machine learning and in-RDBMS data analytics have been studied separately, little previous work has explored private learning in an in-RDBMS system. 
This work considers a specific algorithm --- stochastic gradient descent (SGD) for differentially private machine learning --- and explores how to integrate it into an RDBMS system. We find that previous solutions on differentially private SGD have characteristics that render them unattractive for an RDBMS implementation. To address this, we propose an algorithm that runs SGD for a constant number of passes and then adds noise to the resulting output. We provide a novel analysis of the privacy properties of this algorithm. We then integrate it, along with two existing versions of differentially private SGD, in the Postgres RDBMS. Experimental results demonstrate that our proposed approach can be easily integrated into an RDBMS, incurs virtually no overhead, and yields substantially better test accuracy than the other private SGD algorithm implementations.
P2X purinoceptor subtypes on paraventricular nucleus neurones projecting to the rostral ventrolateral medulla in the rat (2005)

The rostral ventrolateral medulla (RVLM) is essential for the generation of sympathetic nerve activity. The RVLM receives a substantial innervation from the hypothalamic paraventricular nucleus (PVN). Activation of P2X purinoceptors via ATP has been shown to mediate fast excitatory synaptic neurotransmission. There is mounting evidence to suggest the presence of P2X purinoceptors in hypothalamic nuclei, including the PVN. In this study, we determined whether P2X1-P2X6 purinoceptor subtypes were present on PVN neurones that projected to the RVLM. Injection of the retrogradely transported tracer, rhodamine-tagged microspheres, into the pressor region of the RVLM was used to identify the neurones in the PVN that innervated the RVLM. P2X1-P2X6 purinoceptors were detected by immunohistochemistry. Double-labelled neurones were quantified and expressed as a proportion of the retrogradely labelled neurones. The proportions of double-labelled neurones for each of the P2X purinoceptor subtypes varied, on average, from 14 to 29%. The P2X3 purinoceptor subtype was found to be the dominant purinoceptor subtype present on PVN neurones projecting to the RVLM. Additionally it was apparent that more than one P2X purinoceptor subtype was present on the PVN neurones projecting to the RVLM, since the sum of the average percentages of double-labelled neurones for each P2X purinoceptor subtype exceeded 100%. These findings highlight the presence of the P2X1-P2X6 purinoceptors on PVN neurones projecting to the RVLM. The results suggest a potential role for ATP in the PVN in the regulation of sympathetic nerve activity.
Anatomy of a Nanoscale Conduction Channel Reveals the Mechanism of a High-Performance Memristor (2012)

By employing a precise method for locating and directlyimaging the active switching region in a resistive random access memory (RRAM) device, a nanoscale conducting channel consisting of an amorphous Ta(O) solid solution surrounded by nearly stoichiometric Ta2O5 is observed. Structural and chemical analysis of the channel combined with temperature-dependent transport measurements indicate a unique resistance switching mechanism.
BIO30: A Method to Monitor Ventricular Recovery Using VAD Signals Based on Parseval’s Power Theorem (2023)

Study: Recent studies highlight the growing interest in achieving ventricular recovery for VAD patients, thereby eliminating the need for cardiac transplantation. Hemodynamic measurements may be performed during periodic echocardiography for patients with probable recovery. However, there are no standard methods to evaluate ventricular recovery on a continuous outpatient basis. Such a method can help assess changes in cardiac function throughout daily activities, potentially optimized by a responsive VAD control algorithm. The objective of this study was to evaluate a surrogate measure of cardiac contractility based on VAD inherent signals using an in-silico simulation model of assisted circulation. Methods: Without loss of generality, hemodynamic power can be visualized as an electrical power signal in an implanted VAD. The power of a continuous periodic signal (the VAD Flow Rate signal), given by Parseval’s Power Theorem, is equivalently the average value integral over one period of the square of the magnitude of the signal (inclusive of all harmonic components). In this in-silico simulation study, we compute the ratio of this power with the norm (over multiple cardiac cycles) of the signal under steady-state conditions. We call this ratio the Power Factor of the VAD Flow Rate, represented by λVAD. Numerical simulations were conducted for different values of ventricular contractility (Emax Maximum Ventricular Elastance) from 0.5 to 2.0 mmHg/ml over a range of VAD speeds of 1000 to 8000 RPM (HeartMate 3® VAD Model) in steps of 100 RPM. Results: The figure below illustrates the relationship of the Power Factor to VAD speed for four levels of ventricular contractility. At 1000 RPM, the Power Factor for all Emax values was found to be equal. As the VAD speed increases above approximately 4000 RPM, the λVAD values diverge, demonstrating the direct relationship with Emax: having a peak of approximately 0.8 for the greatest ventricular contractility (Emax = 2.0). As speed increases further and approaches 8000 RPM, the values of λVAD once again converge. Another discriminating feature is the location (speed) of the local maximum (“hump”) in the curves within the range of 4000 and 6000 RPM, with the peak occurring at increasing speeds for increasing contractility. The cause of the hump is due to the cooperative relationship of the VAD and native ventricle, precisely the point of the aortic valve opening, allowing forward flow. At the lowest speeds, there is a slight negative flow through the VAD and, thus, a more subdued λVAD. Conclusion: This simulation study shows that the Power Factor of VAD flow rate has the potential as a noninvasive surrogate measure of ventricular recovery that can be monitored continuously. The metric is sensitive to the interaction between the native left ventricle and the VAD and thus helpful in developing feedback control that optimizes cardiac rehabilitation.Figure 1. Simulation results for the Power Factor of VAD Flow Rate as a function of different VAD Speeds (RPM).
Alternate scaling strategies for Multi-Gate FETs for high-performance and low-power applications (2010)

This paper focuses on the alternate strategies to enable scaling of Multi-Gate FETs into sub-22 nm nodes. Scaling is not only limited by device level challenges like increasing parasitic resistances and capacitances, but also circuit level challenges like increasing interconnect parasitics, variability etc. The alternate scaling strategies consider both device level and circuit level challenges to obtain overall benefits with scaling.