gebhart/patrepeval huggingface dataset:
Opportunistic Network Coding for Video Streaming over Wireless (2007)

In this paper, we study video streaming over wireless networks with network coding capabilities. We build upon recent work, which demonstrated that network coding can increase throughput over a broadcast medium, by mixing packets from different flows into a single packet, thus increasing the information content per transmission. Our key insight is that, when the transmitted flows are video streams, network codes should be selected so as to maximize not only the network throughput but also the video quality. We propose video-aware opportunistic network coding schemes that take into account both (i) the decodability of network codes by several receivers and (ii) the importance and deadlines of video packets. Simulation results show that our schemes significantly improve both video quality and throughput.
Atmospheric Turbulence Effect on Acquisition Time of Ground to Satellite Optical Communication System (2009)

The performance of ground to deep space optical communication system is degraded by distortion of the beam as it propagates through the turbulent atmosphere. Turbulence causes intensity fluctuations of the received signal which ultimately affect the acquisition time required to acquire and locate the space borne target using narrow laser beam. In this paper, performance of FSO system in atmospheric turbulence has been analyzed in terms of acquisition time for noncoherent and coherent modulation schemes. Numerical results presented in graphical and tabular forms show that the acquisition time increases with the increases in the turbulence level. This is true for both coherent and non coherent modulation schemes. The BPSK has lowest acquisition time among all schemes. In noncoherent modulation schemes, M-PPM performs better than the other schemes. With the increase in M, acquisition time becomes lower, but at the cost of increase in system complexity.
Associations of retinal microvascular caliber with intermediate phenotypes of large arterial function and structure: A systematic review and meta‐analysis (2019)

Retinal arteriolar, but not venular caliber, was modestly associated with large arterial function and weakly associated with large arterial structure, with stronger evidence in patients with cardiometabolic disease. This suggests that preclinical changes in large arteries and the microcirculation have some shared but mainly unique pathways to associate with cardiovascular disease.
Feasibility of Closed-Loop Insulin Delivery with a Pregnancy-Specific Zone Model Predictive Control Algorithm (2022)

<b><i>Objective:</i></b> Evaluating the feasibility of closed-loop insulin delivery with a zone model predictive control (zone-MPC) algorithm designed for pregnancy complicated by type 1 diabetes (T1D). <b><i>Research Design and Methods:</i></b> Pregnant women with T1D from 14 to 32 weeks gestation already using continuous glucose monitor (CGM) augmented pump therapy were enrolled in a 2-day multicenter supervised outpatient study evaluating pregnancy-specific zone-MPC based closed-loop control (CLC) with the interoperable artificial pancreas system (iAPS) running on an unlocked smartphone. Meals and activities were unrestricted. The primary outcome was the CGM percentage of time between 63 and 140 mg/dL compared with participants' 1-week run-in period. Early (2-h) postprandial glucose control was also evaluated. <b><i>Results:</i></b> Eleven participants completed the study (age: 30.6 ± 4.1 years; gestational age: 20.7 ± 3.5 weeks; weight: 76.5 ± 15.3 kg; hemoglobin A1c: 5.6% ± 0.5% at enrollment). No serious adverse events occurred. Compared with the 1-week run-in, there was an increased percentage of time in 63-140 mg/dL during supervised CLC (CLC: 81.5%, run-in: 64%, <i>P</i> = 0.007) with less time >140 mg/dL (CLC: 16.5%, run-in: 30.8%, <i>P</i> = 0.029) and time <63 mg/dL (CLC: 2.0%, run-in:5.2%, <i>P</i> = 0.039). There was also less time <54 mg/dL (CLC: 0.7%, run-in:1.6%, <i>P</i> = 0.030) and >180 mg/dL (CLC: 4.9%, run-in: 13.1%, <i>P</i> = 0.032). Overnight glucose control was comparable, except for less time >250 mg/dL (CLC: 0%, run-in:3.9%, <i>P</i> = 0.030) and lower glucose standard deviation (CLC: 23.8 mg/dL, run-in:42.8 mg/dL, <i>P</i> = 0.007) during CLC. <b><i>Conclusion:</i></b> In this pilot study, use of the pregnancy-specific zone-MPC was feasible in pregnant women with T1D. Although the duration of our study was short and the number of participants was small, our findings add to the limited data available on the use of CLC systems during pregnancy (NCT04492566).
ENDOTHELIAL CELL ADHESION MOLECULES IN PSORIASIS (1994)

Skin biopsies from patients with psoriasis and normal controls were examined for the expression of cell adhesion molecules including intercellular adhesion molecule-1 (ICAM-1), endothelial leukocyte adhesion molecule-1 (ELAM-1), HECA-452 and 4D10, using an immunoperoxidase techique. This study demonstrates that psoriatic skin exhibits a wide variety of markers of endothelial cell activation which are either induced or increased in expression (ICAM-1, ELAM-1 & 4D10). Moreover, ICAM-1 & HECA-452 are also expressed on leukocytes. These antigens may facilitate the adhesion of inflammatory cells to endothelium and antigen-presenting cells in psoriatic skin. Thus, they may play a role in faciliating the infiltration of leukocytes into psoriatic skin.
Simplified Frequency Offset Estimation for MIMO OFDM Systems (2008)

This paper addresses a simplified frequency offset estimator for multiple-input-multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems over frequency-selective fading channels. By exploiting the good correlation property of the training sequences, which are constructed from the Chu sequence, carrier frequency offset (CFO) estimation is obtained through factor decomposition for the derivative of the cost function with great complexity reduction. The mean square error (MSE) of the CFO estimation is derived to optimize the key parameter of the simplified estimator as well as to evaluate the estimator performance. Simulation results confirm the good performance of the training-assisted CFO estimator.
Cloud-connected real-time oil condition monitoring of utility transformers using impedance spectroscopy (2021)

The use of impedance spectroscopy is described to diagnose the condition of oil in utility transformers. Actual transformer oil samples having different dissolved fault gas and moisture concentrations were characterized by their impedance spectrum from 1 to 100 kHz using an AD5933 device (Analog Devices). The results show that the impedance spectrum of a transformer oil sample is related to its relative saturation percentage (RS). An integrated cloud-connected smart system is described to continuously monitor the condition of the oil in real-time. As proof of concept, the impedance values of oil samples were measured and transmitted to a cloud computing interface for logging and processing. The integrated system is reliable, inexpensive, and suitable for implementation on utility transformers.
Mode of Onset of Malignant Ventricular Arrhythmias in Idiopathic Ventricular Fibrillation (1997)

Cardiac arrest among patients with idiopathic VF has a very distinctive mode of onset. Documentation of a polymorphic VT that is not pause dependent is of diagnostic value.
Tip-Enhanced Raman Voltammetry: Coverage Dependence and Quantitative Modeling (2016)

Electrochemical atomic force microscopy tip-enhanced Raman spectroscopy (EC-AFM-TERS) was employed for the first time to observe nanoscale spatial variations in the formal potential, E<sup>0'</sup>, of a surface-bound redox couple. TERS cyclic voltammograms (TERS CVs) of single Nile Blue (NB) molecules were acquired at different locations spaced 5-10 nm apart on an indium tin oxide (ITO) electrode. Analysis of TERS CVs at different coverages was used to verify the observation of single-molecule electrochemistry. The resulting TERS CVs were fit to the Laviron model for surface-bound electroactive species to quantitatively extract the formal potential E<sup>0'</sup> at each spatial location. Histograms of single-molecule E<sup>0'</sup> at each coverage indicate that the electrochemical behavior of the cationic oxidized species is less sensitive to local environment than the neutral reduced species. This information is not accessible using purely electrochemical methods or ensemble spectroelectrochemical measurements. We anticipate that quantitative modeling and measurement of site-specific electrochemistry with EC-AFM-TERS will have a profound impact on our understanding of the role of nanoscale electrode heterogeneity in applications such as electrocatalysis, biological electron transfer, and energy production and storage.
Enabling Manufacturable 3-D Technology and Ecosystems Using a 28-nm FPGA With Stacked Silicon Interconnect Technology (2015)

Technology challenges and solutions in the development and manufacturing of stacked silicon interconnect (SSI) technology have been investigated with the established foundry and outsourced semiconductor assembly and test ecosystem. Key enabling technologies, such as through-silicon-via processing, interposer backside manufacturing yield enhancement, new stacking technology, interposer warpage control, and microbump processes and joining, which are the building blocks for SSI technology, were developed. Xilinx's 28-nm field programmable gate array with an SSI technology platform was used to develop and optimize the seamless integration of the processes, structures, and parameters, as well as to evaluate their yield, reliability, and device performance.
Reliability among central readers in the evaluation of endoscopic findings from patients with Crohn's disease (2015)

Clinicaltrials.gov NCT01466374.
Yoga and diabetes: A systematic review of recent literature concerning the impact of yoga practice on diabetic symptoms (2014)

Type 2 diabetes is a growing problem worldwide with an estimated 387 million individuals affected by the disease. As the numbers continue to grow, there is a need for improved and expanded delivery of treatment. Previous research has suggested that yoga hold promise as a means to improve the symptoms of type 2 diabetes. This review will provide background on the disease and its impact in India and the United States, as well as on yoga, and how it may impact those affected. Recent articles will be reviewed, results presented and analyzed, then compared to previous systematic reviews on the topic. Finally, limitations of the review will be discussed and suggestions made for further research on the topic.
Permeability and permittivity extraction issues for non-Foster and active metamaterials (2013)

Although a variety of methods have been proposed for the extraction of effective permittivity and permeability of metamaterials, certain underlying passivity constraints and assumptions would not be suitable for non-Foster metamaterials that incorporate active devices and power sources. Moreover, recent arguments suggest that a common passivity constraint in extraction methods does not resolve solution branch ambiguities. To address these issues, the fundamental principles of parameter extraction are revisited for the case of active materials where passivity cannot be assumed. The analysis follows along the lines of Nicolson-Ross-Weir approaches, where parameters are extracted from measured two-port S-parameters. It is shown that a convergence constraint for active materials requires that the magnitude of the product of the transmission coefficient and reflection coefficient must be less than unity. This allows metamaterials with gain, and simulation results are provided for a slab of active material that exhibits gain and satisfies the constraint.
Analysis of Integrated Electrode Stacks for Lithium Ion Batteries (2013)

Abstract not Available.
Selective Mitogen Activated Protein Kinase Activity Sensors through the Application of Directionally Programmable D Domain Motifs (2014)

ABSTRACT: Accurate and quantitative methods for measuring the dynamic fluctuations of protein kinase activities are critically needed as diagnostic tools and for the evaluation of kinase-targeted inhibitors, which represent a major therapeutic development area in the treatment of cancer and other diseases. In particular, rapid and economical methods that utilize simple instrumentation and provide quantitative data in a high throughput format will have the most impact on basic research in systems biology and medicine. There are over 500 protein kinases in the human kinome. Among these, the mitogen activated protein (MAP) kinases are recognized to be central players in key cellular signaling events and are associated with essential processes including growth, proliferation, differentiation, migration, and apoptosis. The major challenge with MAP kinase sensor development is achieving high selectivity since these kinases rely acutely on secondary interactions distal to the phosphorylation site to impart substrate specificity. Herein we
Supplementary Video 4K from Selective Targeting and Potent Control of Tumor Growth Using an EphA2/CD3-Bispecific Single-Chain Antibody Construct (2023)

Supplementary Video 4K from Selective Targeting and Potent Control of Tumor Growth Using an EphA2/CD3-Bispecific Single-Chain Antibody Construct
Carbonate-promoted C–H carboxylation of electron-rich heteroarenes (2020)

C-H carboxylation is an attractive transformation for both streamlining synthesis and valorizing CO<sub>2</sub>. The high bond strength and very low acidity of most C-H bonds, as well as the low reactivity of CO<sub>2</sub>, present fundamental challenges for this chemistry. Conventional methods for carboxylation of electron-rich heteroarenes require very strong organic bases to effect C-H deprotonation. Here we show that alkali carbonates (M<sub>2</sub>CO<sub>3</sub>) dispersed in mesoporous TiO<sub>2</sub> supports (M<sub>2</sub>CO<sub>3</sub>/TiO<sub>2</sub>) effect CO<sub>3</sub> <sup>2-</sup>-promoted C-H carboxylation of thiophene- and indole-based heteroarenes in gas-solid reactions at 200-320 °C. M<sub>2</sub>CO<sub>3</sub>/TiO<sub>2</sub> materials are strong bases in this temperature regime, which enables deprotonation of very weakly acidic bonds in these substrates to generate reactive carbanions. In addition, we show that M<sub>2</sub>CO<sub>3</sub>/TiO<sub>2</sub> enables C3 carboxylation of indole substrates <i>via</i> an apparent electrophilic aromatic substitution mechanism. No carboxylations take place when M<sub>2</sub>CO<sub>3</sub>/TiO<sub>2</sub> is replaced with un-supported M<sub>2</sub>CO<sub>3</sub>, demonstrating the critical role of carbonate dispersion and disruption of the M<sub>2</sub>CO<sub>3</sub> lattice. After carboxylation, treatment of the support-bound carboxylate products with dimethyl carbonate affords isolable esters and the M<sub>2</sub>CO<sub>3</sub>/TiO<sub>2</sub> material can be regenerated upon heating under vacuum. Our results provide the basis for a closed cycle for the esterification of heteroarenes with CO<sub>2</sub> and dimethyl carbonate.
Improving Traffic Locality in BitTorrent via Biased Neighbor Selection (2006)

Peer-to-peer (P2P) applications such as BitTorrent ignore traffic costs at ISPs and generate a large amount of cross-ISP traffic. As a result, ISPs often throttle BitTorrent traffic to control the cost. In this paper, we examine a new approach to enhance BitTorrent traffic locality, biased neighbor selection, in which a peer chooses the majority, but not all, of its neighbors from peers within the same ISP. Using simulations, we show that biased neighbor selection maintains the nearly optimal performance of Bit- Torrent in a variety of environments, and fundamentally reduces the cross-ISP traffic by eliminating the traffic’s linear growth with the number of peers. Key to its performance is the rarest first piece replication algorithm used by Bit- Torrent clients. Compared with existing locality-enhancing approaches such as bandwidth limiting, gateway peers, and caching, biased neighbor selection requires no dedicated servers and scales to a large number of BitTorrent networks.
Simulation of a solar hybrid absorption/thermochemical refrigerationsystem for a residential application (2024)

Further improvement of solar refrigeration systems depends strongly on development of more efficient energy storage systems. A hybrid absorption / thermochemical refrigeration system is proposed in this work, where both subsystems share the same condenser, evaporator and refrigerant fluid, making the overall system more economic and better performing than operating both parts separately. Performance of the system is evaluated by means of a simulation in a sample scenario, consisting of a demand of refrigeration for a single-family residence. The influence of varying the number of solar thermal collectors and the mass of refrigerant fluid available for storage at the thermochemical subsystem is studied.
Supplementary Figure from Circulating Tumor and Immune Cells for Minimally Invasive Risk Stratification of Smoldering Multiple Myeloma (2023)

Supplementary Figure from Circulating Tumor and Immune Cells for Minimally Invasive Risk Stratification of Smoldering Multiple Myeloma
CD47 is a direct target of SNAI1 and ZEB1 and its blockade activates the phagocytosis of breast cancer cells undergoing EMT (2017)

We report that CD47 was upregulated in different EMT-activated human breast cancer cells versus epithelial MCF7 cells. Overexpression of SNAI1 or ZEB1 in epithelial MCF7 cells activated EMT and upregulated CD47 while siRNA-mediated targeting of SNAI1 or ZEB1 in mesenchymal MDA-MB-231 cells reversed EMT and strongly decreased CD47. Mechanistically, SNAI1 and ZEB1 upregulated CD47 by binding directly to E-boxes in the human CD47 promoter. TCGA and METABRIC data sets from breast cancer patients revealed that CD47 correlated with SNAI1 and Vimentin. At functional level, different EMT-activated breast cancer cells were less efficiently phagocytosed by macrophages vs. MCF7 cells. The phagocytosis of EMT-activated cells was rescued by using CD47 blocking antibody or by genetic targeting of SNAI1, ZEB1 or CD47. These results provide a rationale for an innovative preclinical combination immunotherapy based on PD-1/PD-L1 and CD47 blockade along with EMT inhibitors in patients with highly aggressive, mesenchymal, and metastatic breast cancer.
Dynamic Analysis of Multibody Rotor-Bearing System (1997)

Abstract A multibody formulation of a rotor-bearing system of interconnected flexible and rigid components is presented. The elastic shaft is modelled by the finite element method where shear stiffness, torsional stiffness and the gyroscopic effects are considered. An application to a large-scale rotor-bearing system is presented. Complex modal transformations were invoked to obtain a reduced-order dynamic model. The dynamic responses due step and impulse excitations were obtained using both the full-order and the reduced-order models. Comparisons are presented to verify the validity and accuracy of the reduced-order modal form.
Empirical Observation of User Activities (2014)

Location-based social networking platform (e.g., Foursquare), as a popular scenario of participatory sensing system that collects heterogeneous information (such as tips and photos) of venues from users, has attracted much attention recently. In this paper, we study the distribution of these information and their relationship, based on a large dataset crawled from Foursquare, which consists of 2,728,411 photos, 1,212,136 tips and 148,924,749 check-ins of 190,649 venues, contributed by 508,467 users. We analyze the distribution of user-generated check-ins, venue photos and venue tips, and show interesting category patterns and correlation among these information. In addition, we make the following observations: i) Venue photos in Foursquare are able to significantly make venues more social and popular. ii) Users share venue photos highly related to food category. iii) Category dynamics of venue photo sharing have similar patterns as that of venue tips and user check-ins at the venues. iv) Users tend to share photos rather than tips. We distribute our data and source codes under the request of research purposes (email: [email protected]).
Mechanistic Investigation of the Catalyzed Cleavage for the Lignin β-O-4 Linkage: Implications for Vanillin and Vanillic Acid Formation (2017)

The depolymerization of kraft lignin with a copper–vanadium hydrotalcite-like catalyst (HTc-Cu-V) and V(acac)3/Cu(NO3)2·3H2O mixtures to monomeric aromatic aldehydes and aromatic acids such as vanillin and vanillic acid using molecular oxygen as oxidant is reported. The obtained products correlate to model-based studies with erythro-1-(3,4-dimethoxyphenyl)-2-(2-methoxyphenoxy)-1,3-propanediol (1a). Kinetic investigations with 1a demonstrate that there is a combined effect of V(acac)3 together with Cu(NO3)2·3H2O that enhances the catalytic activity and increases the selectivity and yield for the cleavage products veratric acid and veratraldehyde. Veratric acid is formed through reaction pathways involving either the transient oxidation products 1-(3,4-dimethoxyphenyl)-3-hydroxy-2-(2-methoxyphenoxy)propan-1-one (2) and 1-(3,4-dimethoxyphenyl)-2-(2-methoxyphenoxy)prop-2-en-1-one (5) or through overoxidation of veratraldehyde. The formation of veratraldehyde likely proceeds through C–C bond cleavage involving either a retro-aldol or a single electron transfer mechanism.
Pt Modified Heterogeneous Catalysts Combined with Ozonation for the Removal of Diclofenac from Aqueous Solutions and the Fate of by-Products (2020)

The degradation of the pharmaceutical compound diclofenac in an aqueous solution was studied with an advanced oxidation method, catalytic ozonation. Diclofenac was destroyed in a few minutes by ozonation but several long-lasting degradation by-products were formed. For this reason, the combination of heterogeneous catalysts and ozonation was applied to eliminate them completely. The kinetics of the diclofenac degradation and the formation of by-products were thoroughly investigated. Loading of Pt on the catalysts resulted in an improvement of the activity. The Mesoporous Molecular Sieves (MCM) were one of the promising catalysts for the degradation of organic pollutants. In this study, six heterogeneous catalysts were screened, primarily MCM-22-100 catalysts with different Pt concentrations loaded via the evaporation-impregnation (EIM) method, and they were applied on the degradation of diclofenac. It was found that the presence of Pt improved the degradation of diclofenac and gave lower concentrations of by-products. The 2 wt % Pt-H-MCM-22-100-EIM demonstrated the highest degradation rate compared to the proton form, 1% or 5 wt % Pt concentration, i.e., an optimum was found in between. Pt-H-Y-12-IE and Pt-γ-Al2O3 (UOP)-IMP catalysts were applied and compared with the MCM-22 structure. Upon use of both of these catalysts, an improvement in the degradation of diclofenac and by-products was observed, and the 2 wt % Pt-H-MCM-22-100-EIM illustrated the maximum activity. All important characterization methods were applied to understand the behavior of the catalysts (X-ray powder diffraction, transmission electron microscopy, nitrogen physisorption, scanning electron microscopy, energy dispersive X-ray micro-analyses, pyridine adsorption-desorption with FTIR spectroscopy, X-ray photoelectron spectroscopy). Finally, leaching of Pt and Al were analyzed by inductively coupled optical emission spectrometry.
Modulation d'argument des oscillators verrouillés par injection (2006)

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