gebhart/patrepeval huggingface dataset:
Position and orientation estimation through millimeter wave MIMO in 5G systems (2018)

Millimeter-wave (mm-wave) signals and large antenna arrays are considered enabling technologies for future 5G networks. While their benefits for achieving high-data rate communications are well-known, their potential advantages for accurate positioning are largely undiscovered. We derive the Cramér-Rao bound (CRB) on position and rotation angle estimation uncertainty from mm-wave signals from a single transmitter, in the presence of scatterers. We also present a novel two-stage algorithm for position and rotation angle estimation that attains the CRB for average to high signal-to-noise ratio. The algorithm is based on multiple measurement vectors matching pursuit for coarse estimation, followed by a refinement stage based on the space-alternating generalized expectation maximization algorithm. We find that accurate position and rotation angle estimation is possible using signals from a single transmitter, in either line-of-sight, non-line-of-sight, or obstructed-line-of-sight conditions.
Effect of Computerized Physician Order Entry and a Team Intervention on Prevention of Serious Medication Errors (1998)

Physician computer order entry decreased the rate of nonintercepted serious medication errors by more than half, although this decrease was larger for potential ADEs than for errors that actually resulted in an ADE.
Nonlinear optical phenomena in glass (1991)

Nonlinear properties include intensity-dependent refractive index, multiphoton absorption, second and third harmonic generation, stimulated Raman and Brillouin scattering, and associated phenomena such as self-focusing, self-phase modulation, optical phase conjugation, and optical bistability. We report on a large amount of work that reaches beyond simple glasses such as silica. Nonlinear optical phenomena have been investigated in materials ranging from oxide, halide, and chalcogenide glasses to glasses doped with semiconductor microcrystals, organic dyes, and metal particles and in forms varying from bulk materials to optical fibres and waveguides. We also discuss recently discovered photoinduced effects in glass fibres, which include second harmonic generation and the formation of refractive index gratings
Design-Space Exploration and Optimization of an Energy-Efficient and\n Reliable 3D Small-world Network-on-Chip (2016)

A three-dimensional (3D) Network-on-Chip (NoC) enables the design of high\nperformance and low power many-core chips. Existing 3D NoCs are inadequate for\nmeeting the ever-increasing performance requirements of many-core processors\nsince they are simple extensions of regular 2D architectures and they do not\nfully exploit the advantages provided by 3D integration. Moreover, the\nanticipated performance gain of a 3D NoC-enabled many-core chip may be\ncompromised due to the potential failures of through-silicon-vias (TSVs) that\nare predominantly used as vertical interconnects in a 3D IC. To address these\nproblems, we propose a machine-learning-inspired predictive design methodology\nfor energy-efficient and reliable many-core architectures enabled by 3D\nintegration. We demonstrate that a small-world network-based 3D NoC (3D SWNoC)\nperforms significantly better than its 3D MESH-based counterparts. On average,\nthe 3D SWNoC shows 35% energy-delay-product (EDP) improvement over 3D MESH for\nthe PARSEC and SPLASH2 benchmarks considered in this work. To improve the\nreliability of 3D NoC, we propose a computationally efficient spare-vertical\nlink (sVL) allocation algorithm based on a state-space search formulation. Our\nresults show that the proposed sVL allocation algorithm can significantly\nimprove the reliability as well as the lifetime of 3D SWNoC.\n
New Polylactide/Layered Silicate Nanocomposites. 1. Preparation, Characterization, and Properties (2002)

New polylactide (PLA)/layered silicate nanocomposites have been prepared successfully by simple melt extrusion of PLA and organically modified montmorillonite. The d spacings of both the organically modified montmorillonite and intercalated nanocomposites were investigated by wide-angle X-ray diffraction (WAXD) analysis, and the morphology of these nanocomposites was examined by transmission electron microscopy (TEM). Using oligo(ε-caprolactone) (o-PCL) as a compatibilizer, the effect of compatibilizer in nanocomposites was investigated by focusing on two major aspects: morphological analysis and mechanical property measurements. The intercalated nanocomposites exhibited remarkable improvement of materials properties in both solid and melt states as compared to that of PLA matrices without clay.
RED TACTON (An avant-garde Human Area Networking technology) (2014)

So many technologies for networking are known and are in use. These technologies connect people, objects and other networks together so as to share data and thus make information ready for access. Our body could soon be the backbone of a broadband personal data network linking your mobile phone or MP3 player to a cordless headset, your digital camera to a PC or printer, and all the gadgets you carry around to each other.
Salt-inducible Kinase Regulates Hepatic Lipogenesis by Controlling SREBP-1c Phosphorylation (2009)

Liver plays a major role in regulating energy homeostasis in mammals. During feeding conditions, excessive glucose is converted into a preferred storage form of energy sources as triacylglycerol in liver via a collective metabolic pathway termed lipogenesis. Sterol regulatory element-binding protein 1c is a master regulator for this process by activating number of enzyme genes, such as Fasn or Acaca, that are involved in this pathway at the transcriptional level. Here we show that the salt-inducible kinase (SIK) family of proteins regulates the hepatic lipogenesis by modulating SREBP-1c activity. Overexpression of SIK1 inhibits hepatic expression of lipogenic genes, such as Fasn, whereas knockdown of SIK1 in liver greatly enhances their expression. Regulation of the Fasn gene by SIK kinases is mediated at the level of transcription via phosphorylation and inactivation of nuclear SREBP-1c. Among candidate sites for SIK-dependent regulation of SREBP-1c, the serine 329 residue is shown to be a critical regulatory site for SIK-mediated repression of SREBP-1c activity by in vitro kinase assay and reverse transcription-PCR analysis in primary hepatocytes. Finally, reduced hepatic triacylglycerol levels and lipogenic gene expression by adenoviral SIK1 transgenic expression are restored to normal levels by co-infection of mutant SREBP-1c, suggesting that SIK-dependent regulation of hepatic lipogenesis is indeed mediated through the phosphorylation of SREBP-1c in vivo. The process for the development of nonalcoholic fatty liver involves de novo lipogenesis via the activation of SREBP-1c. Modulation of SREBP-1c activity by SIK proteins would provide an attractive means for the regulation of such diseases.
332: L-arginine prevents hypoxia-induced vasoconstriction in the fetal vasculature: a potential intervention in chronic uteroplacental ischemia (2014)

Chronic hypoxia in the uteroplacental unit is associated with increased impedance to blood flow in the fetal-placental circulation. These changes may be compensatory in nature, but they are associated with fetal heart remodeling and long term cardiovascular effects. This study was designed to determine if L-arginine [a nitric oxide (NO) substrate] and BQ123 (an endothelin A receptor antagonist) administration can reverse hypoxia-induced increases of fetal vascular pressure in dual-perfused human placental cotyledons. Dual-perfused placental cotyledons (n=16) were prepared from uncomplicated term pregnancies. Following equilibration with 95% O2 and 5% CO2 (normoxia) the maternal compartment was sequentially perfused with Krebs solution with hypoxia (95% N2 and 5% CO2) and normoxia. Changes in the perfusion pressure in the fetal compartment were continuously recorded. L-arginine (n=3), BQ123 (n=3) or normal saline (n=10) were administered to the fetal compartment prior to the initiation of hypoxia in the maternal compartment. Perfusion pressure changes in the fetal compartment were compared among groups. Hypoxia in the maternal compartment was associated with increased (mean delta: 3.17 + 1.33 mm Hg) perfusion pressure in the fetal compartment, which returned to baseline following reoxygenation. L-arginine administration to the fetal compartment blunted the effect of maternal hypoxia on the fetal perfusion pressure (mean delta: 0.40 + 0.6 mm Hg; p=0.006). In contrast, BQ123 did not significantly change the hypoxic effect on the fetal vasculature (mean delta: 2.23 + 0.9; p=0.7). 1) L-arginine, but not BQ123, reduces the hypoxia-induced vasoconstriction in the fetal compartment suggesting that NO, but not endothelin, signaling participate in hypoxia-induced vasoconstriction of the fetal vasculature; 2) L-arginine administration could potentially reduce the fetal cardiovascular changes associated with chronic uteroplacental ischemia.
Large-scale tandem mass spectrum clustering using fast nearest neighbor searching (2021)

Abstract Rationale Advanced algorithmic solutions are necessary to process the ever increasing amounts of mass spectrometry data that is being generated. Here we describe the falcon spectrum clustering tool for efficient clustering of millions of MS/MS spectra. Methods falcon succeeds in efficiently clustering large amounts of mass spectral data using advanced techniques for fast spectrum similarity searching. First, high-resolution spectra are binned and converted to low-dimensional vectors using feature hashing. Next, the spectrum vectors are used to construct nearest neighbor indexes for fast similarity searching. The nearest neighbor indexes are used to efficiently compute a sparse pairwise distance matrix without having to exhaustively perform all pairwise spectrum comparisons within the relevant precursor mass tolerance. Finally, density-based clustering is performed to group similar spectra into clusters. Results Several state-of-the-art spectrum clustering tools were evaluated using a large draft human proteome dataset consisting of 25 million spectra, indicating that alternative tools produce clustering results with different characteristics. Notably, falcon generates larger highly pure clusters than alternative tools, leading to a larger reduction in data volume without the loss of relevant information for more efficient downstream processing. Conclusions falcon is a highly efficient spectrum clustering tool. It is publicly available as open source under the permissive BSD license at https://github.com/bittremieux/falcon .
Force Field Parameter Development for the Thiolate/Defective Au(111) Interface (2020)

A molecular-level understanding of the interplay between self-assembled monolayers (SAMs) of thiolates and gold surface is of great importance to a wide range of applications in surface science and nanotechnology. Despite theoretical research progress of the past decade, an atomistic model, capable of describing key features of SAMs at reconstructed gold surfaces, is still missing. In this work, periodic ab initio density functional theory (DFT) calculations were utilized to develop a new atomistic force field model for alkanethiolate (AT) SAMs on a reconstructed Au(111) surface. The new force field parameters were carefully trained to reproduce the key features, including vibrational spectra and torsion energy profiles of ethylthiolate (C<sub>2</sub>S) in the bridge or staple motif model on the Au(111) surface, wherein, the force constants of the bond and angle terms were trained by matching the vibrational spectra, while the torsion parameters of the dihedral angles were trained via fitting the torsion energy profiles from DFT calculations. To validate the developed force field parameters, we performed classical molecular dynamics (MD) simulations for both pristine and reconstructed Au-S interface models with a (2√3 × 3) unit cell, which includes four dodecanethiolate (C<sub>10</sub>S) molecules on the Au(111) surface. The simulation results showed that the geometrical features of the investigated Au-S interface models and structural properties of the C<sub>10</sub>S SAMs are in good agreement with the ab initio MD studies. The newly developed atomistic force field model provides new fundamental insights into AT SAMs on the reconstructed Au(111) surface and adds advancement to the existing interface research knowledge.
Near Duplicate Identification With Spatially Aligned Pyramid Matching (2010)

A new framework, termed spatially aligned pyramid matching, is proposed for near duplicate image identification. The proposed method robustly handles spatial shifts as well as scale changes, and is extensible for video data. Images are divided into both overlapped and non-overlapped blocks over multiple levels. In the first matching stage, pairwise distances between blocks from the examined image pair are computed using earth mover's distance (EMD) or the visual word with <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex Notation="TeX">$\chi^{2}$</tex></formula> distance based method with scale-invariant feature transform (SIFT) features. In the second stage, multiple alignment hypotheses that consider piecewise spatial shifts and scale variation are postulated and resolved using integer-flow EMD. Moreover, to compute the distances between two videos, we conduct the third step matching (i.e., temporal matching) after spatial matching. Two application scenarios are addressed—near duplicate retrieval (NDR) and near duplicate detection (NDD). For retrieval ranking, a pyramid-based scheme is constructed to fuse matching results from different partition levels. For NDD, we also propose a dual-sample approach by using the multilevel distances as features and support vector machine for binary classification. The proposed methods are shown to clearly outperform existing methods through extensive testing on the Columbia Near Duplicate Image Database and two new datasets. In addition, we also discuss in depth our framework in terms of the extension for video NDR and NDD, the sensitivity to parameters, the utilization of multiscale dense SIFT descriptors, and the test of scalability in image NDD.
High-pressure, high-temperature molecular doping of nanodiamond (2019)

The development of color centers in diamond as the basis for emerging quantum technologies has been limited by the need for ion implantation to create the appropriate defects. We present a versatile method to dope diamond without ion implantation by synthesis of a doped amorphous carbon precursor and transformation at high temperatures and high pressures. To explore this bottom-up method for color center generation, we rationally create silicon vacancy defects in nanodiamond and investigate them for optical pressure metrology. In addition, we show that this process can generate noble gas defects within diamond from the typically inactive argon pressure medium, which may explain the hysteresis effects observed in other high-pressure experiments and the presence of noble gases in some meteoritic nanodiamonds. Our results illustrate a general method to produce color centers in diamond and may enable the controlled generation of designer defects.
Marking HTTP Requests as Unimportant (2014)

An HTTP Nice header field is defined. Nice marks a request as low
priority. Gateways can choose to discard or delay the request, or
provide a response from cache rather than forwarding it to an origin
server. This enables constrained origin servers, such as those that
rely on battery power, to avoid expending limited resources on serving
requests.
An Architecture to Support the Collection of Big Data in the Internet of Things (2014)

The Internet of Things (IoT) relies on physical objects interconnected between each others, creating a mesh of devices producing information. In this context, sensors are surrounding our environment (e.g., cars, buildings, smartphones) and continuously collect data about our living environment. Thus, the IoT is a prototypical example of Big Data. The contribution of this paper is to define a software architecture supporting the collection of sensor-based data in the context of the IoT. The architecture goes from the physical dimension of sensors to the storage of data in a cloud-based system. It supports Big Data research effort as its instantiation supports a user while collecting data from the IoT for experimental or production purposes. The results are instantiated and validated on a project named SMARTCAMPUS, which aims to equip the SophiaTech campus with sensors to build innovative applications that supports end-users.
Anisometropia in an Adult Population in Rural Myanmar: The Meiktila Eye Study (2008)

Prevalence of anisometropia is relatively high in this rural adult population in Myanmar. Myopia and cataract, but not increasing age, are the potential risk factors of anisometropia in this population.
Selective Assembly and Disassembly of a Water‐Soluble Fe10L15 Prism (2013)

Survival of the fittest: Die gleichen Bausteine führten unter verschiedenen Reaktionsbedingungen selektiv zu zwei wasserlöslichen metallorganischen Strukturen, einem Tetraeder und einem pentagonalen Prisma. Nach Zugabe von 4-Methoxyanilin zu einer Mischung der beiden Strukturen wurde das Prisma zu einem einkernigen Komplex abgebaut, und die stabilere Tetraederstruktur blieb erhalten. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Digital Signal Transmission (1992)

This textbook will provide both undergraduates and practising engineers with an up-to-date and thorough grounding in the concepts of modern digital transmission. The book is not encyclopaedic, rather it selects the key concepts and processes and explains them in a deliberate pedagogic style. These concepts and processes are then illustrated by a number of system descriptions. The book is divided into three parts. The longest, Part II, describes the basic processes of digital transmission, such as matched filter detection, pulse shaping, line coding, channel coding, error detection and correction, etc. Understanding the concepts behind these processes requires a grasp of basic mathematical models, and this is provided in Part I. Finally, to put the processes in context, Part III describes elements of the public switched telephone network. The text is written throughout in a modern, digital context, and is comprehensively illustrated with helpful figures. Although the mathematical models (time- and frequency-domain concepts) have wider relevance, they are developed specifically for modelling digital signals. The processes described are those found in current transmission systems, and the description of the PSTN includes an outline of newly formulated standards for the synchronous digital hierarchy (SDH), SONET and for broadband ISDN (ATM). The book will be of great value to 2nd and 3rd year undergraduates studying telecommunications, as well as to graduate trainees and practising engineers. It is appropriate for either private study or as a text associated with a taught telecommunications course. The many worked examples and exercises with solutions will be particularly helpful.
Potential impact of superconductivity on power quality enhancment (1992)

Electric power quality problems are estimated to cost U.S. industry $26 billion dollars per year in lost production. This paper provides a summary of the problem’s magnitude, an overview of the underlying causes, discusses the present methods used by industry to reduce the problem’s impact and the associated cost, and examines the potential for superconducting technology to effect alternative solutions. The present market for uninterruptible power supplies (UPS) and power conditioners is also discussed and the benefits of applying high temperature superconductors (HTS) are summarized.
HER-2/Neu Gene in Primary and Local Metastatic Axillary Lymph Nodes in Human Breast Tumors (1992)

In order to verify whether the HER-2/neu gene is involved in the initial phases of neoplastic disease or in its progression, we evaluated the amplification and overexpression of this gene in the primary tumor and in synchronous metastatic axillary lymph nodes of 26 women with operable breast cancer. HER-2/neu was amplified in 35% and overexpressed in 33% of the primary sites; similar percentages were found in lymph nodes. The clear correlation between the two disease sites regarding gene, mRNA and protein levels, supports the hypothesis that this gene is involved in the initial and invasive phases of neoplasia. Its actual role with respect to other biological tumor characteristics during the metastatic process should be investigated further.
Phosphorus(V) Nitrides: Preparation, Properties, and Possible Applications of New Solid State Materials with Structural Analogies to Phosphates and Silicates (1993)

Abstract With the synthesis of pure, stoichiometric, and crystalline phosphorus nitride P3N5 an essential for the systematic investigation of higher phosphorus nitrides has become available. By solid state reaction of P3N5 with Li3N and Ca3N2, respectively, the following ternary compounds have been synthesized and have been characterized by their crystal structures and properties: Li7PN4, Li12P3N9, Li10P4N10, LiPN2, and Ca2PN3. By defined heterogeneous ammonolyses of P3N5 the phosphorus nitride imides HPN2 and HP4N7 have been obtained. Sodalite-type phosphorus nitrides (e.g. M7-xH2x[P12N24]Z2-y; M=Fe, Co, Ni, Mn etc.; 0≤x≤2; Z=Cl, Br; 0≤y≤2) are accessible via reaction of HPN2 with metal chlorides MCl2. Silicon phosphorus nitride SiPN3 is obtained by ammonolysis of Cl3SiNPCl3 followed by pyrolysis in an ammonia stream. All phosphorus nitrides obtained so far contain PN4-tetrahedra as characteristic building units which may be interconnected by common vertices showing differing degrees of condensation. Practical applications of phosphorus nitrides as solid state electrolytes and pigments are discussed.
Integrated speech and gaze control for realistic desktop environments (2008)

Nowadays various are the situations in which people need to interact with a Personal Computer without having the possibility to use traditional pointing devices, such as a keyboard or a mouse. In the latest years, various alternatives to the classical input devices like keyboard and mouse and novel interaction paradigms have been proposed. Particularly, multimodal interactions have been proposed to overcome the limit of each input channel take alone. In this paper we propose a multimodal system based on the integration of speech- and gaze-based inputs for interaction with a real desktop environment. A real-time grammar is generated to limit the vocal vocabulary basing on the fixated area. A disambiguation method is used for inherently ambiguous vocal commands, and the performed tests show its efficiency.