gebhart/patrepeval huggingface dataset:
5G NR Communication over GEO or LEO Satellite Systems: 3GPP RAN Higher Layer Standardization Aspects (2019)

Satellite communication has the potential to provide coverage over large geographical areas. This ubiquity enables potential for providing connectivity for currently unserved remote areas as well as for moving platforms such as airplanes and ships. However, many satellite systems were developed on private networks, each having their individual solution for the satellite systems and for the end user equipment (UE). In order to extent the satellite-industry-wide standards to global telecommunication standards, there are currently activities in the 3rd generation partnership project (3GPP) to study the feasibility and needed standard adaptations for the 5th generation (5G) new radio (NR) 3GPP standard. In this paper, we provide an overview of the ongoing activity in 3GPP RAN working groups with focus on RAN2 and RAN3 aspects for enabling NR communication over geosynchronous orbit (GEO) and non-GEO satellite systems.
City-Wide Signal Strength Maps: Prediction with Random Forests (2019)

Signal strength maps are of great importance to cellular providers for network planning and operation, however they are expensive to obtain and possibly limited or inaccurate in some locations. In this paper, we develop a prediction framework based on random forests to improve signal strength maps from limited measurements. First, we propose a random forests (RFs)-based predictor, with a rich set of features including location as well as time, cell ID, device hardware and other features. We show that our RFs-based predictor can significantly improve the tradeoff between prediction error and number of measurements needed compared to state-of-the-art data-driven predictors, i.e., requiring 80% less measurements for the same prediction accuracy, or reduces the relative error by 17% for the same number of measurements. Second, we leverage two types of real-world LTE RSRP datasets to evaluate into the performance of different prediction methods: (i) a small but dense Campus dataset, collected on a university campus and (ii) several large but sparser NYC and LA datasets, provided by a mobile data analytics company.
Isolation, Structural Elucidation, and Absolute Stereochemistry of Enigmazole A, a Cytotoxic Phosphomacrolide from the Papua New Guinea Marine Sponge Cinachyrella enigmatica (2010)

Enigmazole A (1), a novel phosphate-containing macrolide, was isolated from a Papua New Guinea collection of the marine sponge Cinachyrella enigmatica. The structure of 1, including the absolute stereochemistry at all eight chiral centers, was determined by a combination of spectroscopic analyses and a series of microscale chemical derivatization studies. Compound 1 is comprised of an 18-membered phosphomacrolide that contains an embedded exomethylene-substituted tetrahydropyran ring and an acyclic portion that spans an embedded oxazole moiety. Two additional analogues, 15-O-methylenigmazole A and 13-hydroxy-15-O-methylenigmazole A, were also isolated and assigned. The enigmazoles are the first phosphomacrolides from a marine source and 1 exhibited significant cytotoxicity in the NCI 60-cell line antitumor screen, with a mean GI(50) of 1.7 microM.
La gubernamentalidad en los cursos del profesor Foucault (2009)

Este trabajo se propone mostrar: 1) Que la gubernamentalidad es una noción metodológica elaborada por Foucault como parte de las necesidades de su actividad de enseñanza e investigación. 2) Que investigación y enseñanza aparecen como dos elementos indisociables en el intento de pensar de otro modo, tarea que el profesor Foucault se propuso en sus cursos. 3) Que tal noción metodológica llevó a Foucault a realizar un triple desplazamiento en su trabajo de investigación y, por tanto, en su pensamiento; triple desplazamiento que marcará el paso de la problematización de las relaciones saber/poder hacia la problematización de las relaciones gobierno/verdad; triple desplazamiento que, finalmente, constituye un ejercicio filosófico al modo antiguo, es decir, al modo de un ejercicio espiritual.
0.67-μm GaInAsP/AIGaAs planar-buried-heterostructure lasers grown on GaAs substrates by LPE (1986)

Visible semiconductor lasers in the 0.6-μm wavelength region are quite attractive for wide-range applications developing in optical information processing and optical communications through plastic fibers. Recently, room-temperature cw operations of GaInAsP/GaAsP and AIGalnP/GaAs lasers at 0.66–0.68 μm were achieved. However, complicated epitaxial techniques of hydrid VPE and MOCVD were utilized for their fabrication.1–4
Impact of Methicillin-ResistantStaphylococcus aureusPrevalence among S.aureusIsolates on Surgical Site Infection Risk after Coronary Artery Bypass Surgery (2011)

Glycopeptide prophylaxis minimizes the risk of SSIs and cost when MRSA prevalence exceeds 3%. At very low MRSA prevalence (between 3% and 10%), the SSI minimization provided by glycopeptide prophylaxis is small and may be within the error of the model. Given the current MRSA prevalence in most community and healthcare settings, clinicians should consider routine prophylaxis with vancomycin. Our findings may have important policy implications, as benefits in cardiothoracic surgery antibiotic prophylaxis must be weighed against the limitations of increased glycopeptide use.
Ageing tests closer to real service conditions using hyper-sensitive microcalorimetry, a case study on EPDM rubber (2023)

Accelerated thermal ageing (ATA) coupled to mechanical testing is widely used to predict the lifetime of polymeric products. ATA implies that the mechanisms of ageing are the same at accelerated and service conditions, which may often not be the case. Hence, ageing closer to service conditions is of high importance, but require very sensitive tools. Therefore, a high sensitivity microcalorimetry (MC) method was applied here to assess if it can be a possible tool for lifetime/ageing prediction closer to service conditions. We chose to focus on a complex, yet commonly used, ethylene-propylene-diene terpolymer (EPDM) rubber. Arrhenius extrapolation of the heat flow data indicated two regimes at low and high temperature, with the former having the lower activation energy. The heat flow values measured by the MC revealed contributions from processes such as the melting of the antioxidant, its consumption at low temperature and the breakdown of residual peroxide. MC tests on the EPDM indicated a very low degree of oxidation appearing above 100 °C, too low to be observed with infra-red spectroscopy (FTIR), but noticeable with MC. The high sensitivity of the MC techniques enabled detection of early signs of polymer degradation/ageing and other thermally activated processes that take place at or close to service temperatures (such as those in nuclear power plants). The MC tests were combined with other techniques, such as scanning electron microscopy/energy dispersive X-ray spectroscopy, gas chromatography techniques, differential scanning calorimetry and FTIR to further understand the degradation mechanisms.
Denying HIV Safe Haven (1996)

The ability of the human immunodeficiency virus (HIV) to replicate successfully in vitro appears inextricably linked to the state of activation of its cellular host. Indeed, an activated cellular environment is crucial for both the initial phase of the HIV life cycle involving reverse transcription and the establishment of the HIV provirus within the host chromosome and the subsequent expression of these proviral genes and the directed assembly of infectious virions.1 Hints that the state of cellular activation is just as important for viral replication in vivo emerged when viral gene expression was preferentially detected in the germinal centers of . . .
A Traffic Engineering (TE) MIB (2005)

This memo defines a standards-track portion of the Management
Information Base (MIB) for use with network management protocols in
the Internet community. In particular, it describes managed objects
for Traffic Engineered Tunnels, for example, Multi-Protocol Label
Switched Paths.
Dynamically reorganized chromatin is the key for the reprogramming of somatic cells to pluripotent cells (2015)

Nucleosome positioning and histone modification play a critical role in gene regulation, but their role during reprogramming has not been fully elucidated. Here, we determined the genome-wide nucleosome coverage and histone methylation occupancy in mouse embryonic fibroblasts (MEFs), induced pluripotent stem cells (iPSCs) and pre-iPSCs. We found that nucleosome occupancy increases in promoter regions and decreases in intergenic regions in pre-iPSCs, then recovers to an intermediate level in iPSCs. We also found that nucleosomes in pre-iPSCs are much more phased than those in MEFs and iPSCs. During reprogramming, nucleosome reorganization and histone methylation around transcription start sites (TSSs) are highly coordinated with distinctively transcriptional activities. Bivalent promoters gradually increase, while repressive promoters gradually decrease. High CpG (HCG) promoters of active genes are characterized by nucleosome depletion at TSSs, while low CpG (LCG) promoters exhibit the opposite characteristics. In addition, we show that vitamin C (VC) promotes reorganizations of canonical, H3K4me3- and H3K27me3-modified nucleosomes on specific genes during transition from pre-iPSCs to iPSCs. These data demonstrate that pre-iPSCs have a more open and phased chromatin architecture than that of MEFs and iPSCs. Finally, this study reveals the dynamics and critical roles of nucleosome positioning and chromatin organization in gene regulation during reprogramming.
Analytical Expression for Impulse Response Between Two Nodes in 2-D Rectangular Digital Waveguide Mesh (2008)

The digital waveguide mesh models multidimensional wave propagation in discrete space and time. The finite difference wave equation used in the mesh is expressed in the space-time domain, which is not straightforward to reveal the analytical expression for the impulse response between a source and a receiver. This letter describes a procedure to derive an analytical impulse response expression between two nodes in a 2-D rectangular digital waveguide mesh based on the wave equation. The analytical expression can provide helpful insights and help verify simulation results for the digital waveguide mesh.
A novel tracking analysis of the Normalized Least Mean Fourth algorithm (2011)

In this work, the tracking analysis of the Normalized Least Mean Fourth (NLMF) algorithm is investigated for a random walk channel under very weak assumptions. The novelty of this work re sides in the fact that no restrictions are made on the dependence between the input successive regressors, the dependence among input regressor elements, the length of the adaptive filter, the distribution of noise and filter's input. Moreover, in our approach, there is no restriction made on the step size value and therefore the analysis holds for all the values of the step size in the range of stable NLMF algorithm. The analysis is based on a recently proposed performance measure called effective weight deviation vector which is the component of weight deviation vector in the direction of input regressor. In this paper, asymptotic time-averaged convergence for the mean square effective weight deviation, mean absolute excess estimation error, and the mean square excess estimation error for the NLMF algorithm are established. Finally, a number of simulation results are carried out to corroborate the theoretical findings.
Human Immunodeficiency Virus–Infected Patients Receiving Highly Active Antiretroviral Therapy Maintain Activated CD8+T Cell Subsets as a Strong Adaptive Immune Response to Cytomegalovirus (2001)

CD8(+) T lymphocyte function specific for human cytomegalovirus (CMV) was evaluated in 14 patients infected with human immunodeficiency virus (HIV) receiving highly active antiretroviral therapy (HAART) and 26 CMV-seropositive donors without HIV infection. Fifty-seven percent of the HIV-infected group had CMV-specific cytolytic activity in freshly isolated peripheral blood mononuclear cells (PBMC) against targets expressing CMV pp65. Both interferon (IFN)-gamma secretion by CD8(+) T cells and the frequency of human leukocyte antigen (HLA)-tetramer-positive T cells in HLA-A*0201-positive HIV-infected subjects correlated with CMV-specific cytolysis. In contrast, PBMC from healthy CMV-seropositive donors did not have either measurable CMV-specific cytolysis or secretion of IFN-gamma without in vitro stimulation. The T helper response to CMV antigens was vigorous in healthy CMV-seropositive donors but low in the cohort of HIV-infected patients. Potent CD8(+) cytotoxic T lymphocyte responses to CMV in HIV-infected patients receiving HAART is the converse of what is found in healthy CMV-seropositive subjects and may be the predominant adaptive immune response against CMV in HIV-infected patients.
Introduction (2018)

No AccessInjection Molding Processing DataNov 2018IntroductionAlberto Naranjo C., Maria del Maria del, Juan Diego Sierra M., Juan Rodrigo Sanz, Tim A. OsswaldAlberto Naranjo C.Search for more papers by this author, Maria del Maria delSearch for more papers by this author, Juan Diego Sierra M.Search for more papers by this author, Juan Rodrigo SanzSearch for more papers by this author, Tim A. OsswaldSearch for more papers by this authorhttps://doi.org/10.3139/9781569906675.001SectionsAboutPDF ToolsAdd to FavoritesDownload CitationTrack CitationsCopy LTI LinkPDF key 'share (en)' returned an object instead of string.FacebookTwitterEmailLinkedIn previous chapternext chapter FiguresReferencesRelatedDetails 2018Pages: 5-5Print ISBN: 978-1-56990-666-8eISBN: 978-1-56990-667-5 Copyright & Permissions© 2019 Carl Hanser Verlag GmbH & Co. KGPDF downloadLoading ...
Comparison of Early and Late Feline Immunodeficiency Virus Encephalopathies (1992)

General features of encephalopathy were found to be identical, regardless of the method of inoculation or the viral strain used. Moderate gliosis and glial nodules, sometimes associated with perivascular infiltrates and white matter pallor, were observed at 1 month (intracerebral injection) and 2 months (intravenous injection), and remained unchanged until 12 months post-inoculation. The fact that these initial stages are identical for intravenously and intracerebrally inoculated cats suggests that the virus enters the brain very quickly in intravenously infected animals. Encephalopathy in cats naturally infected with FIV only consisted of gliosis, glial nodules, white matter pallor, meningeal perivascular calcification and meningitis. These lesions were more frequent and more severe in the group coinfected with feline leukaemia virus and feline infectious peritonitis virus. Although multinucleated cells were rare, the strong similarities between HIV and simian immunodeficiency virus encephalopathies at comparable stages support the view that FIV infection may represent an interesting model for a physiopathological approach of HIV infection of the central nervous system.
Electrical Resistance Tomography for Monitoring of Underground Coal Gasification (2011)

Abstract not provided
Dementia with impaired glucose metabolism in late onset metachromatic leukodystrophy (2001)

An unusual case of very-late-onset metachromatic leukodystrophy (MLD) with dementia was studied. The patient was a 41-year-old male who presented with mild dementia and a single generalized tonic clonic seizure. Neuropsychological assessment demonstrated mild amnesia, visuospatial dysfunction and attention deficits with a slow psychomotor speed. MR brain imaging displayed confluent hyperintensities of periventricular and subcortical white matter. Low levels of arylsulfatase A confirmed the diagnosis. Impaired cortical glucose metabolism especially of the medial temporal and frontal cortices was observed using positron emission tomography and fluor-18-labeled fluorodesoxyglucose. The neuropsychological deficits are related to the location of deficits in glucose metabolism.
GPU Scheduling on the NVIDIA TX2: Hidden Details Revealed (2017)

The push towards fielding autonomous-driving capabilities in vehicles is happening at breakneck speed. Semi-autonomous features are becoming increasingly common, and fully autonomous vehicles are optimistically forecast to be widely available in just a few years. Today, graphics processing units (GPUs) are seen as a key technology in this push towards greater autonomy. However, realizing full autonomy in mass-production vehicles will necessitate the use of stringent certification processes. Currently available GPUs pose challenges in this regard, as they tend to be closed-source “black boxes” that have features that are not publicly disclosed. For certification to be tenable, such features must be documented. This paper reports on such a documentation effort. This effort was directed at the NVIDIA TX2, which is one of the most prominent GPU-enabled platforms marketed today for autonomous systems. In this paper, important aspects of the TX2's GPU scheduler are revealed as discerned through experimental testing and validation.
Photoacoustic microscopy of cerebral blood-oxygenation dynamics in mice (2009)

In this work, we exploit the high depth and temporal resolutions of PAM to noninvasively image the blood-oxygenation dynamics of multiple cortex vessels in the mouse brain simultaneously in response to controlled hypoxic and hyperoxic challenges. The dark-field photoacoustic microscopy (PAM) technique was enhanced to image the cortex vasculature of the mouse brain in vivo using endogenous hemoglobin contrast with one second temporal resolution. The maximum values of about 20% with standard deviation &plusmn; 1.2% were found to vary significantly among the cortex vessels studied. The hypoxic response time to rise from 10 % to 90 % of maximum was 63 &plusmn; 6 sec. The reverse response time for this event was 16 &plusmn; 2 sec.
Metal-electrode-free Window-like Organic Solar Cells with p-Doped Carbon Nanotube Thin-film Electrodes (2016)

Organic solar cells are flexible and inexpensive, and expected to have a wide range of applications. Many transparent organic solar cells have been reported and their success hinges on full transparency and high power conversion efficiency. Recently, carbon nanotubes and graphene, which meet these criteria, have been used in transparent conductive electrodes. However, their use in top electrodes has been limited by mechanical difficulties in fabrication and doping. Here, expensive metal top electrodes were replaced with high-performance, easy-to-transfer, aerosol-synthesized carbon nanotubes to produce transparent organic solar cells. The carbon nanotubes were p-doped by two new methods: HNO3 doping via 'sandwich transfer', and MoOx thermal doping via 'bridge transfer'. Although both of the doping methods improved the performance of the carbon nanotubes and the photovoltaic performance of devices, sandwich transfer, which gave a 4.1% power conversion efficiency, was slightly more effective than bridge transfer, which produced a power conversion efficiency of 3.4%. Applying a thinner carbon nanotube film with 90% transparency decreased the efficiency to 3.7%, which was still high. Overall, the transparent solar cells had an efficiency of around 50% that of non-transparent metal-based solar cells (7.8%).
Products and influencing factors of reductive degradation of 2,4-DNT in groundwater by zero-valent iron. (2010)

In this study,batch experiments were conducted for the purpose of understanding the reductive remediation discipline of trace quantities of 2,4-dinitrotoluene(2,4-DNT) in groundwater by zero-valent iron.Impacts of common anions in groundwater,such as Cl-,NO3-and PO43-and heavy metal Cr(Ⅵ) on reductive capabilities of zero-valent iron for 2,4-dinitrotoluene(2,4-DNT) were investigated,and its final and intermedial products were analyzed.The results indicated that:Cl-and NO3-could both remarkably promote the reductive removal rate of 2,4-DNT by zero-valent iron by the 120th min.When the concentration of Cl-and NO3-increased from 0 to 1 mmol /L,the removal rate increased from 31.4% to 97.2% and 78.9%,respectively.In contrast,PO43-could remarkably inhibit the reductive process;the reductive removal rate of 2,4-DNT decreased from 31.4% to 2.1% by the 120th min when the concentration of PO43-increased from 0 to 1 mmol /L.However,Cr(Ⅵ) adsorbed active electrons provided by the zero-valent iron competitively with 2,4-DNT.When the concentration of Cr(Ⅵ) was 20 mg /L,the reduction of 2,4-DNT by zero-valent iron was remarkably restrained.4-amino-2-nitrotoluene(4A2NT) and 2-amino-4-nitrotoluene(2A4NT) were intermediates,and 2,4-diaminotoluene(2,4-DAT) was the final product of the reductive reaction.Therefore,in groundwater nitrobenzene pollutant remediation by zero-valent iron practice,influence of common ions on the reaction process should be taken into account.Finally,2,4-DNT was
Redistrlbutlon of selectln counter-llgands Induced by cytoklnes (2000)

Soluble recombinant (r) P-selectin and rP-selectin immobilized on plastic surfaces were tested for their capacity to activate neutrophils to produce superoxide anion. Soluble rP-selectin was incapable of activating leukocytes, whereas immobilized rP-selectin was able to induce leukocyte activation. When neutrophils were pretreated with a low dose of IL-8, granulocyte colony stimulating factor or granulocyte macrophage colony stimulating factor, soluble rP-selectin was no longer inert. These cytokine-primed leukocytes produced superoxide anion in the presence of soluble rP-selectin. During this priming period, sialyl Lewis X (sLex) epitopes redistributed to one end of the leukocytes. Similar polarization of sLex epitopes was observed at the attachment site of cells that adhered to immobilized rP-selectin. Cap formation and superoxide anion production induced by solid-phase P-selectin or by IL-8 and soluble rP-selectin treatment were inhibited by treatment of the leukocyies with cytochalasin B. These observations suggest that the redistribution of the carbohydrate ligands and the polarization of the leukocyle surface through an active process is a prerequisite but not sufficient to leukocyte superoxide production through P-selectin.
Local Stability and Convergence Analysis of Neural Network Controllers With Error Integral Inputs (2021)

This article investigates the local stability and local convergence of a class of neural network (NN) controllers with error integrals as inputs for reference tracking. It is formally proved that if the input of the NN controller consists exclusively of error terms, the control system shows a non-zero steady-state error for any constant reference except for one specific point, for both single-layer and multi-layer NN controllers. It is further proved that adding error integrals to the input of the (single- and multi-layers) NN controller is one sufficient way to remove the steady-state error for any constant reference. Due to the nonlinearity of the NN controllers, the NN control systems are linearized at the equilibrium points. We provide proof that if all the eigenvalues of the linearized NN control system have negative real parts, local asymptotic stability and local exponential convergence are guaranteed. Two case studies were explored to verify the theoretical results: a single-layer NN controller in a 1-D system and a four-layer NN controller in a 2-D system applied to renewable energy integration. Simulations demonstrate that when NN controllers and the corresponding generalized proportional-integral (PI) controllers have the same eigenvalues, all control systems exhibit almost the same responses in a small neighborhood of their respective equilibrium points.