gebhart/patrepeval huggingface dataset:
Optimization of Soft Interference Cancellation in DS-CDMA Receivers (1998)

Parallel interference cancellation for DS-CDMA has been shown to suffer from biased amplitude estimates if a matched-filter estimator is used. The bias magnitude is proportional to the number of interfering users. For heavy system loads, the bias has been shown to adversely effect the accuracy of the interference cancellation process, thereby impairing BER after cancellation. Empirical simulation work has demonstrated that weighting down interference estimates can improve BER performance. This thesis substantiates these BER improvements by modelling and analyzing a soft interference cancellation technique which mitigates the effects of the bias by minimizing BER after cancellation in a bit-synchronous parallel interference cancellation CDMA receiver. We analyze system decision metrics with down-scaled interference estimates and determine both the mean and variance of the biased decision statistics. From these two metric moments, system BER is evaluated, and the optimal interference scaling function which minimizes BER is derived. We demonstrate BER performance enhancements by simulating this soft interference cancellation technique in systems under perfect power control and in the near-far situation. We further discuss the applicability of the results to asynchronous systems.
Prophesying War (2019)

David Winter’s Roots of War: Wanting Power, Seeing Threat, Justifying Force is a new attempt to understand the causes of war and the factors that contribute to the escalation of conflicts. Jason Quinn and Laurel Stone scruple at Winter’s methodology, criteria for conflict, assessments of threats, and interpretation of the language embedded in diplomatic exchanges and political speeches.
Pneumococcal pneumonia in baboons; a novel translational science model (2016)

Community-acquired pneumonia (CAP) accounts for &gt;3.5 millions deaths/year, and <i>Streptococcus pneumoniae</i> is the most frequent pathogen isolated in CAP patients. Relevant animal models to study complications arising during and after pneumococcal pneumonia in humans are required. <b>AIMS:</b> Development of a non-human animal model to study the mechanisms and potential therapeutic targets of pneumococcal pneumonia. <b>METHODS:</b> 7 baboons (<i>Papio cynocephalus</i>) were surgically tethered to a continued monitoring system to assess heart rate, temperature, and ECG during the course of the experiment. After a two weeks recovery period, animals were intratracheally challenged with 10<sup>8</sup> colony-forming units of <i>S. pneumoniae</i> serotype 4 strain TIGR4 using video assisted bronchoscopy. Pneumonia was diagnosed using lung ultrasonography (baseline and post-infection) and confirmed with H&amp;E staining and immunofluorescence microscopy for SPN capsule. Biomarkers of organ failure, such as creatinine, BUN, ALT, and bacteremic load were quantified daily. <b>RESULTS:</b> A systemic inflammatory response, cough, and respiratory distress developed precisely 4 days after inoculation. Severity of symptoms was consistent with the grade of pneumonia and levels of bacteremia, which varied between animals. Ultrasonography accurately detected the consolidated lobes with pneumonia compared to the gold standard post-mortem pathological analysis. <b>CONCLUSIONS:</b> We developed a novel pneumococcal pneumonia model that mimics the inflammatory response and infection kinetics of humans. This model has applicability towards finding novel biomarkers to diagnose pneumococcal pneumonia and predict outcomes as well as testing of new therapeutic treatments.
Progress towards a smart skin: fabrication and preliminary testing (2002)

This paper describes progress towards the development of a force sensitive skin ("smart skin") capable of measuring force distributions on the human palmer and finger surface. Closely spaced normal force tactile sensing elements in a flexible skin have been successfully designed and fabricated based on silicon piezoresistive effect using MEMS (microelectromechanical systems) techniques. The sensing array consists of five elements each 4.4 mm in diameter, and arranged within a 16 mm circle designed to fit on a human finger tip. Preliminary bench testing shows the sensor performance is excellent with negligible hysteresis and good linearity (R=0.997). Normal loads of up to 180 N have been measured. A shear sensitive tactile sensor prototype was also developed. The preliminary results demonstrate that the prototype can sense both normal and shear forces with good linearity and repeatability.
Improving antibiotic prescribing for community-acquired pneumonia in a provincial hospital in Northern Vietnam (2021)

Interventions led to some process changes, but these were not utilized by clinicians to improve patient management. Institutional and behavioural barriers documented may inhibit wider national uptake of the QS. National system changes with longer term support and investment to address local behavioural barriers are likely to be crucial for future improvements in the management of CAP, and potentially other hospitalized conditions, in Vietnam.
ADSORPTION ISOTHERM STUDIES OF LEAD FROM AQUEOUS SOLUTION USING FLY ASH (2013)

Recent developments in off-the-shelf wireless embedded computing boards and the increasing need for efficient health monitoring systems, fueled by the increasing number of patients, has prompted R&D professionals to explore better health monitoring systems that are both mobile and cheap. This work investigates the feasibility of using the ZigBee embedded technology in health-related monitoring applications. Selected vital signs of patients are acquired using sensor nodes and readings are transmitted wirelessly using devices that utilize the ZigBee communications protocols. A prototype system has been developed and tested with encouraging results.
A t(2;19)(p13;p13.2) in a giant invasive cardiac lipoma from a patient with multiple lipomatosis (2000)

Cardiac lipomas occur infrequently but account for a significant portion of rare cardiac tumors. Common cutaneous lipomas have previously been associated with rearrangements of chromosome band 12q15, which often disrupt the high-mobility-group protein gene HMGIC. In this report, we describe the cytogenetic analysis of an unusual giant cardiac lipoma that exhibited myocardial invasion in a patient with a history of multiple lipomatosis (cutaneous lipoma, lipomatous gynecomastia, lipomatous hypertrophy of the interatrial septum, and dyslipidemia). Cytogenetic studies of cells derived from the cardiac lipoma demonstrated no abnormalities of chromosome 12, but did reveal a t(2;19)(p13;p13.2). A liposarcoma-derived oncogene (p115-RhoGEF) previously mapped to chromosome 19 and the low-density lipoprotein receptor gene (LDLR) previously mapped to chromosome band 19p13 were evaluated to determine whether they were disrupted by this translocation. Fluorescence in situ hybridization analyses assigned p115-RhoGEF to chromosome 19 in bands q13.2-q13.3 and mapped the LDLR to chromosome arm 19p in segment 13.2, but centromeric to the t(2;19) breakpoint. Thus, these genes are unlikely to be involved in the t(2;19)(p13;p13.2). Further studies of the regions of chromosomes 2 and 19 perturbed by the translocation in this unusual infiltrating cardiac lipoma will identify gene(s) that participate in adipocyte growth and differentiation and may provide insight into syndromes of multiple lipomatosis.
Strobe versus Incandescent Lighting for Egg Crack Detection Using Machine Vision (1995)

A strobe light was used as a light source for the acquisition of images for the detection of cracks in eggs using machine vision. This light source would potentially enable a camera to obtain a good quality image in a shorter time frame than required by constant incandescent lighting. A circuit was developed to synchronize the firing of the strobe light with the acquisition of the image by the camera. Success rates for egg inspections using the two lighting methods (strobe and incandescent) were compared for a mixture of egg sizes and for medium, large, and extra large eggs. The response surfaces were visibly different depending on type of back illumination of eggs used. However, very little difference was found between the maximum success rates for each lighting method. Maximum success rates were approximately 90% for each illumination method (95% for medium eggs.) Range of values for optimization of the two software constants was also very similar for both types of lighting. Optimum success rates were obtained by defining crack length as 150 to 190 pixels and filter factor as 35 to 40.
Nonenzymic microbial acceleration of nitrosamine formation (1977)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNonenzymic microbial acceleration of nitrosamine formationHo Seung Yang, James D. Okun, and Michael C. ArcherCite this: J. Agric. Food Chem. 1977, 25, 5, 1181–1183Publication Date (Print):May 1, 1977Publication History Published online1 May 2002Published inissue 1 May 1977https://pubs.acs.org/doi/10.1021/jf60213a025https://doi.org/10.1021/jf60213a025research-articleACS PublicationsRequest reuse permissionsArticle Views51Altmetric-Citations8LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Proceedings : 1998 International Symposium on Low Power Electronics and Design, Monterey Conference Center, Monterey, CA, August 10-12, 1998 (1998)

This text covers all aspects of designing low power products, from fabrication technology and circuits, to systems and software, including such topics as: RF building blocks; RT-level power modelling and analysis; and enabling device technology for low-power applications.
Reduction of hemorrhage risk after stereotactic radiosurgery for cavernous malformations (1995)

The benefits of radiosurgery for cavernous malformations are difficult to assess because of the unclear natural history of this vascular lesion, the inability to image malformation vessels, and the lack of an imaging technique that defines "cure." The authors selected for radiosurgery 47 patients who harbored a hemorrhagic malformation in a critical intraparenchymal location remote from a pial or ependymal surface. Of these, 44 patients had experienced at least two hemorrhages before radiosurgery. The mean patient age was 39 years; six patients had previously undergone attempted surgical removal. The malformation was located in the pons/midbrain in 24 cases, the medulla in three, the thalamus in nine, the basal ganglia in three, deep in a parietal lobe in four, and deep in a temporal lobe in four. Patients had sustained initial hemorrhages from 0.5 to 12 years prior to radiosurgery (mean 4.12 years). In these patients, who were not typical of the majority of patients with cavernous malformations, there were 109 bleeds before radiosurgery in 193 prior observation-years, for 56.5% annual hemorrhage rate (including the first hemorrhage), or an annual rate of 32% subsequent to the first hemorrhage. The mean follow-up period after radiosurgery was 3.6 years (range 0.33-6.4 years). The proportion of patients with hemorrhage after radiosurgery was significantly reduced (p < 0.0001), as was the mean number of hemorrhages per patient (p = 0.00004). In the first 2 years after radiosurgery, there were seven bleeds in 80 observation-years (8.8% annual hemorrhage rate). In the 2- to 6-year interval after radiosurgery, the annual rate decreased to 1.1% (one bleed). After radiosurgery, 12 patients (26%) sustained neurological worsening that correlated with imaging changes. In eight patients these deficits were temporary; two underwent surgical resection and died. Two patients had new permanent deficits (4%). A significant reduction was observed in the hemorrhage rate after radiosurgery in patients who had deep hemorrhagic cavernous malformations, especially after a 2-year latency interval. This evidence provides further support to the belief that radiosurgery is an effective strategy for cavernous malformations, especially when located within the parenchyma of the brainstem or diencephalon.
Tracking motor recovery in stroke survivors undergoing rehabilitation using wearable technology (2010)

Quantitative assessment of motor abilities in stroke survivors undergoing rehabilitation can be a valuable feedback to guide the rehabilitation process. The Functional Ability Scale (FAS) part of Wolf Motor Function Test (WMFT) is used to evaluate movement quality during performance of a set of functional motor tasks. In this paper, we show that information collected using body worn sensors such as accelerometers during performance of functional motor tasks by stroke survivors can be used to build accurate classifiers of FAS scores for individual tasks. We perform feature selection to improve classification accuracy and show that it is possible to estimate the total FAS score from a subset of functional motor tasks taken from the WMFT.
Globální problémy a trvale udržitelný rozvoj (2006)

Predmetem diplomove prace Globalni problemy a trvale udržitelný rozvoj je na zaklade vymezeni problematiky globalnich problemu analyzovat tvorbu koncepce trvale udržitelneho rozvoje a nasledne prozkoumat, do jake miry jsou aspekty trvale udržitelneho rozvoje naplnovany v konkretnich oblastech ceskeho hospodarstvi, tj. predstavit a zhodnotit aplikace do relevantnich casti mikroekonomicke hospodarske politiky CR. V prvni casti je podan výklad globalnich problemu a dokumentace jejich vývoje, propojenosti a nebezpecnosti. Ve druhe casti je predstavena koncepce trvale udržitelneho rozvoje a celosvetový pracovni plan pro aplikaci koncepce trvale udržitelneho rozvoje v praxi, Agenda 21. Treti cast se zabýva otazkou, jak jsou principy trvale udržitelneho rozvoje uplatneny v mikroekonomicke hospodarske politice CR.
Novel Two‐Phase Catalysis with Organometallic Compounds for Epoxidation of Vegetable Oils by Hydrogen Peroxide (2009)

Abstract A series of new organometallic catalysts for epoxidized vegetable oils using H 2 O 2 in a biphasic system were investigated. The effect of reaction parameters such as the amount of hydrogen peroxide, reaction time and temperature in the epoxidation of soybean oil are discussed in detail. A selectivity of 83.8% was obtained in 4 h at 60 °C, when [(C 18 H 37 ) 2 N(CH 3 ) 2 ] 3 {PO 4 [WO(O 2 ) 2 ] 4 } was used as the catalyst. When methyltrioxorhenium (MTO), imidazole and CH 3 CN were used as the catalyst, adduct, and solvent respectively, a selectivity of 99.90% was achieved in 4 h at 20 °C. The catalytic system was used for the epoxidation of other oils, whose results showed it was active in the epoxidation of long‐chain unsaturated compounds. Furthermore, the reaction of H 2 O 2 with methyltrioxorhenium was studied by UV–Vis spectroscopy, which revealed the active peroxorhenium complexes formed during the reaction. Epoxidation of these oils with organometallic compounds occurred through the interactions between the oils unsaturated sites HOMO π(C–C) and the unoccupied peroxo σ *(O–O) orbital.
Pupillary Studies of The Retinal "off" Response (1991)

It has been known for many years that not all electrical discharges arising from the retina are due to a light stimulus. Some occur as a result of the light being turned off. The "off" response of the retina was recorded in early electroretinographic studies (1-3) when the light stimulus used was not of such short duration as used in present studies with the xenon flash. The "off response is also a well recognized spike discharge from a certain population of retinal ganglion cells that only seem to respond when a light stimulus is terminated (4,5). Similar recordings have been characterized from the lateral geniculate nucleus (6), the pretectal pupillocontrictor centers (7), and the ciliary nerves (8,9).
Arylierungschemie für die Biokonjugation (2018)

Abstract Mittels Biokonjugationschemie können modifizierte Biomoleküle hergestellt werden, deren Funktionsumfang das natürliche Maß übersteigt. Hierbei ist die Entwicklung hocheffizienter und selektiver Biokonjugationsreaktionen von Bedeutung, die unter milden, biokompatiblen Bedingungen ablaufen. Vielversprechend sind hierbei Verfahren, bei denen Bindungen zwischen einem Nukleophil und einem sp 2 ‐hybridisierten Kohlenstoffatom gebildet werden, wodurch in manchen Fällen Moleküle mit einzigartigen Eigenschaften erhalten werden können. In diesem Aufsatz werden Biokonjugationsstrategien für die Arylierung von Schwefel, Stickstoff, Selen, Sauerstoff und Kohlenstoff sowie ihre Anwendungen für die Modifikation von Peptiden, Proteinen, Kohlenhydraten und Nukleinsäuren zusammengefasst.
meta-Selective C–H Bond Alkylation with Secondary Alkyl Halides (2013)

Ruthenium catalysts enabled C-H bond functionalizations on arenes with challenging secondary alkyl halides. Particularly, ruthenium(II) biscarboxylate complexes proved to be the key to success for direct alkylations with excellent levels of unusual meta-selectivity. The direct alkylations occurred under mild reaction conditions with ample scope and tolerated valuable functional groups. Detailed mechanistic studies were performed, including various competition experiments as well as reactions with isotopically labeled substrates. These studies provided strong support for an initial reversible cyclometalation. The cycloruthenation thereby activates the arene for a subsequent remote electrophilic-type substitution with the secondary alkyl halides. Independently prepared cycloruthenated complexes were found to be catalytically active provided that a carboxylate ligand was present, thereby highlighting the key importance of carboxylate assistance for effective meta-selective C-H bond alkylations.
Techno-Economic Analysis of BEVs with Fast Charging Infrastructure: Preprint (2014)

Battery electric vehicles (BEVs) offer the potential to reduce both oil imports and greenhouse gas emissions, but high upfront costs, battery-limited vehicle range, and concern over high battery replacement costs may discourage many potential purchasers. One proposed solution is to employ a subscription model under which a service provider assumes ownership of the battery while providing access to vast fast charging infrastructure. Thus, high upfront and subsequent battery replacement costs are replaced by a predictable monthly fee, and battery-limited range is replaced by a larger infrastructure-limited range. Assessing the costs and benefits of such a proposal are complicated by many factors, including customer drive patterns, the amount of required infrastructure, and battery life. Herein the National Renewable Energy Laboratory applies its Battery Ownership Model to address these challenges and compare the economics and utility of a BEV fast charging service plan to a traditional direct ownership option. In single vehicle households, where such a service is most valuable, we find that operating a BEV under a fast charge service plan can be more cost-effective than direct ownership of a BEV, but it is rarely more cost-effective than direct ownership of a conventional vehicle.
Synthesis of Biomimetic Poly(hydroxybutyrate):  Alkoxy- and Carboxytriazolines as Latent Ionic Initiator (2007)

A well-defined high molecular weight poly(3-hydroxybutyrate) was synthesized by “living”/controlled ring-opening polymerization (ROP) of β-butyrolactone (BL) using a metal-free catalytic system. The ROP was initiated from either primary alcohol or carboxylic acid added with 1 equiv of a stable carbene, i.e., 1,3,4-triphenyl-4,5-dihydro-1H-1,2,4-triazol-5-ylidene carbene, 1. Interestingly, perfect control over molecular weight (Mn up to 32 000 g·mol-1), molecular weight distribution (Mw/Mn ∼ 1.1 − 1.3) and end group fidelity was attained using t-BuOH as the only polymerization solvent at 80 °C. Structural and kinetics studies highlighted an anionic polymerization mechanism where the protonated 1 (1-H) played the role of associated counterion. Attesting for the control of the ROP, amphiphilic block copolymers were further synthesized by polymerization of BL from poly(ethylene oxide) α-methoxy, ω-carboxylic acid macroinitiator while their tensioactive properties were evidenced by the pendant drop method.
High current density, long duration cycling of soluble organic active species for non-aqueous redox flow batteries (2016)

Symmetric flow cell cycling of a soluble phenothiazine.
Ru‐Catalyzed anti‐Markovnikov Addition of Amides to Alkynes: A Regio‐ and Stereoselective Synthesis of Enamides. (2005)

Abstract For Abstract see ChemInform Abstract in Full Text.
DNA-Guided Plasmonic Helix with Switchable Chirality (2018)

The ability to dynamically tune the self-assembled structures of nanoparticles is of significant interest in the fields of chemistry and material studies. However, it continues to be challenging to dynamically tune the chiral superstructures of nanoparticles and actively switch the chiral optical properties thereof. Here, we dynamically controlled a gold nanorod 3D chiral plasmonic superstructure (a stair helix with a pinwheel end view) templated by a DNA origami supramolecular polymer, using DNA-toehold-mediated conformational change in the DNA template. The gold nanorod chiral plasmonic helix was controllably reconfigured between a tightly folded state (with a small inter-rod angle) and an extended state (with a wide inter-rod angle) of the same handedness, or between two mirror-image-like structures of opposite handedness. As a result, the chiral plasmonic properties of the gold nanorod helix superstructures, in terms of the circular dichroism amplitude, peak response frequency, and signature of chirality, were actively switched upon the DNA-guided structural reconfiguration. We envision that the strategy demonstrated here will boost the advancement of reconfigurable chiral materials with increased complexity for active light control applications through rational molecular design and predictable self-assembly procedures.
Cooperative Recombination of a Quantized High-Density Electron-Hole Plasma in Semiconductor Quantum Wells (2006)

We investigate photoluminescence from a high-density electron-hole plasma in semiconductor quantum wells created via intense femtosecond excitation in a strong perpendicular magnetic field, a fully quantized and tunable system. At a critical magnetic field strength and excitation fluence, we observe a clear transition in the band-edge photoluminescence from omnidirectional output to a randomly directed but highly collimated beam. In addition, changes in the linewidth, carrier density, and magnetic field scaling of the photoluminescence spectral features correlate precisely with the onset of random directionality, indicative of cooperative recombination from a high-density population of free carriers in a semiconductor environment.