gebhart/patrepeval huggingface dataset:
A generic link layer for future generation wireless networking (2004)

In the future many radio access networks will be deployed based on different technologies and standards. Therefore, a paradigm for future generation wireless networking is to achieve cooperation between networks, which allows communication via a multitude of radio access technologies. While some mobility schemes already enable communication across network boundaries, it is still not possible to do this in an efficient and seamless way. In this paper the concept of generic link layer (GLL) is presented. It is envisaged that in the future the generic link layer will be generally deployed in all radio access networks, to allow efficient cooperation between different radio technologies. The GLL provides a toolbox of link layer functions which can be configured for any radio access technology. This paper discusses the functions and interfaces of the generic link layer. It is explained how the GLL enables lossless and efficient inter-system handover. In addition, directions are given where further research is required.
Ultraefficient Förster-Type Nonradiative Energy Transfer Enabled by the Complex Dielectric Medium with Tuned Permittivity (2021)

Förster-type nonradiative energy transfer (FRET) is one of the primary near-field phenomena and is a useful, fundamental mechanism allowing us to control the excitation energy flow. Using carefully chosen pairs of quantum emitters/absorbers (donors/acceptors), FRET has proved to be essential in a variety of light-generating and -harvesting systems. However, FRET takes place only in a limited spatial range, and its efficiency suffers from an adversely rapidly decreasing profile over the increasing distance between the donor and acceptor. To foster FRET, reaching ultimate levels of efficiency and extending its range, we systematically studied the FRET mechanism by tuning the background medium’s permittivity. The FRET rates of donor–acceptor pairs consisting of a point-like, quasi-0-dimensional quantum dot and quasi-2-dimensional quantum well nanostructures are analytically derived to characterize the change of FRET rates with respect to the medium’s permittivity. The analysis reveals that the FRET rate becomes singular when the permittivity approaches zero and there is a fixed value for the point-like and all other nanostructures, respectively. By setting the medium’s relative permittivity to realistic values near the singular point, which can be realized by a digital metamaterial approach, ultrahigh FRET rates and thereby ultraefficient FRET-based systems are achievable.
IL-32, a Novel Proinflammatory Cytokine in Chronic Obstructive Pulmonary Disease (2008)

This is the first study to demonstrate increased expression of IL-32 in lung tissue of patients with COPD, where it was colocalized with tumor necrosis factor-alpha and correlated with the degree of airflow obstruction. These results suggest that IL-32 is implicated in the characteristic immune response of COPD, with a possible impact on disease progression.
Genetic abnormalities in pancreatic cancer. (2003)

The incidence and mortality of pancreatic adenocarcinoma are nearly coincident having a five-year survival of less than 5%. Enormous advances have been made in our knowledge of the molecular alterations commonly present in ductal cancer and other pancreatic malignancies. One significant outcome of these studies is the recognition that common ductal cancers have a distinct molecular fingerprint compared to other nonductal or endocrine tumors. Ductal carcinomas typically show alteration of K-ras, p53, p16INK4, DPC4 and FHIT, while other pancreatic tumor types show different aberrations. Among those tumors arising from the exocrine pancreas, only ampullary cancers have a molecular fingerprint that may involve some of the same genes most frequently altered in common ductal cancers. Significant molecular heterogeneity also exists among pancreatic endocrine tumors. Nonfunctioning pancreatic endocrine tumors have frequent mutations in MEN-1 and may be further subdivided into two clinically relevant subgroups based on the amount of chromosomal alterations. The present review will provide a brief overview of the genetic alterations that have been identified in the various subgroups of pancreatic tumors. These results have important implications for the development of genetic screening tests, early diagnosis, and prognostic genetic markers.
A secure and efficient micropayment solution for online gaming (2009)

An innovative micropayment solution is proposed which incorporates both distributed security and social networking features. This has significant potential to impact on both the provision of new services and community features in online massive multiplayer online role-playing gaming (MMORPG) worlds. Initial feasibility implementation and testing of the micropayments system on both desktop and handheld device clients is presented. The system is well suited to gaming applications and our preliminary studies indicate the practical feasibility of integrating it within an operational MMORPG architecture.
Causality effects on accelerating light pulses (2011)

We study accelerating and decelerating shape-preserving temporal Airy wave-packets propagating in dispersive media. We explore the effects of causality, and find that, whereas decelerating pulses can asymptotically reach zero group velocity, pulses that accelerate towards infinite group velocity inevitably break up, after a specific critical point. The trajectories and the features of causal pulses are analyzed, along with the requirements for the existence of the critical point and experimental schemes for its observation. Finally, we show that causality imposes similar effects on accelerating pulses in the presence of local Kerr-like nonlinearities.
Supplementary Figure 3 from Chemotherapy Acts as an Adjuvant to Convert the Tumor Microenvironment into a Highly Permissive State for Vaccination-Induced Antitumor Immunity (2023)

&lt;p&gt;PDF file - 2370K, Effect of chemotherapy on the frequency of CD11b+ Gr-1+ myeloid-derived suppressor cells (MDSCs)&lt;/p&gt;
Differential requirements for the production by a T helper clone of the lymphokines involved in the induction of polyclonal proliferation and differentiation of unstimulated B lymphocytes. (1985)

Antigen-activated T helper (TH) cells secrete into their supernatant various lymphokines that are able to drive B cells to proliferate and to differentiate into Ig-secreting cells. In this report, we compared the production of these two types of activities by a TH clone. We found that B cell proliferating activity was released by TH cells under conditions in which T cell proliferation and the release of the B cell differentiating activity were totally blocked by anti-L3T4 monoclonal antibody GK1.5. The release of these two activities also dissociated during the reversion of T cells to the resting state after activation with antigen. Two weeks after activation, the T cell clone still secreted B cell proliferating activity, but did not secrete B cell differentiating activity. Three to four weeks after activation, neither activity was produced. The data suggest that the genes coding for these two activities are independently regulated in activated T cells. The implications of these observations concerning B lymphocyte development are discussed.
Information rate maximizing FIR transceivers: filterbank precoders and decision-feedback equalizers for block transmissions over dispersive channels (2003)

Optimal FIR transmit-filterbanks and non-linear DFE receivers are derived for block transmission systems. Subject to an average transmitted power constraint, the mutual information rate is maximized by joint optimization of the transmit and receive filters. The FIR transmit filterbank obeys the "water-filling" principle; moreover, transmit-induced redundancy in the form of trailing zeros, and proper design of the receive filters provides degrees of freedom which can be exploited for the equalization of frequency-selective channels. Simulations illustrate the merits of our designs.
Reversible Control Method for Particle Dispersion and Flocculation in Nonaqueous Solvent (2022)

In this study, a novel reversible control method of particle dispersion/flocculation for nonaqueous solvent was developed. Titanium oxide was used as sample powder. Cyclopentasiloxane was used as solvent and Polyoxyethylene polyalkylsiloxane was used as a dispersant. First, a well-dispersed slurry was prepared by adding dispersant. After preparation, alcoholic amphiphilic molecule was added to the well-dispersed slurry to convert it from liquid to a gel-like consistency, which was caused by the hydrogen bond of dispersant on the surface of the particles. The resultant gel could easily be changed to liquid state by shaking. In addition, the slurry reverted back to gel state after a certain period of time. It was found that the relative permittivity and the additive amount of amphiphilic molecule has an influence on the strength of the gel.
Highly Charged Cellulose Nanocrystals Applied as A Water Treatment Flocculant (2019)

Various cellulosic materials have replaced petroleum-derived polymers, offering natural and sustainable alternatives. Among them, cellulose nanocrystals (CNC) feature an easily modifiable surface, enabling the exploration of a wide spectrum of applications. In this work, the quaternary agent 3-chloro-2-hydroxypropyltrimethylammonium chloride (CHPTAC) was used as a cationic graft on CNCs, to form a novel water treatment flocculant. The resulting material was chemically and structurally characterized by the determination of Zeta potential; degree of substitution by elemental analysis; hydrodynamic size by dynamic light scattering (DLS) and infrared spectroscopy with Fourier Transform Infrared (FT-IR); and X-ray diffraction (XRD). The flocculation capacity of cationic cellulose nanocrystals (CNC-EPTMAC) was evaluated in a jar test filled with an 0.25 wt.% silica (SiO2) suspension. CNC-EPTMAC proved to be an effective water treatment flocculant, reducing turbidity by up to 99.7% at a concentration of only 2 ppm. This work demonstrates a natural and environmentally sustainable alternative to homologous commercial flocculants.
Vortex phases and energy dissipation in narrow Nb strips: Reduction of collective pinning (1993)

A novel size effect in narrow Nb strips in relation to the width w was found in perpendicular fields much higher than ${\mathit{H}}_{\mathit{c}1}$; upon decreasing the width, even at 4.2 K, a linear resistivity at low current densities appeared for w\ensuremath{\le}1.12 \ensuremath{\mu}m, and the linear resistivity showed an enhancement with decreasing w. This behavior was explained by the reduction of collective pinning which occurs when w becomes comparable to the size of a hopping bundle of vortices. However, if w is further reduced, vortices are pinned individually and the surface barrier acts as a deep pinning potential, which resulted in a recovery of a high ${\mathit{J}}_{\mathit{C}}$. In zero field, these strips showed a clear increase in the critical current density with decreasing w, which agrees well with a calculation which takes into account the current concentration near the edges.
High-Precision Force Control of Short-Stroke Reluctance Actuators with an Air Gap Observer (2016)

A short-stroke reluctance actuator linearization scheme that simultaneously achieves high linearity, high bandwidth, and low stiffness is demonstrated. These properties are required in high speed and high precision motion systems. They are achieved by combining various control schemes, namely flux feedforward and analog sensing coil feedback for high bandwidth, Hall probe feedback to stabilize the drift, and an air gap observer together with gain scheduling to reduce the remaining stiffness. Using the presented scheme, the attractive force of the actuator can be controlled with high precision without the need for a position or force sensor. Experiments indicate that a linearization error of 50 mN for second-order 200 N force reference profiles is obtained. This translates into force predictability of 99.98%. Furthermore, absolute actuator stiffness below 500 N/m at force levels of 100 N is achieved, which is comparable to more linear Lorentz actuators.
New adaptive IIR notch filter and its application to howling control in speakerphone system (1992)

A new second order IIR adaptive notch filter which has a faster convergence rate was developed to control howling in a speakerphone system. Simulation results obtained using real hybrid and acoustic transfer functions show an 8-14 dB howling margin enhancement with this new technique.
Enhancing Matrix Acid Stimulation Using Ultrasonic Waves (2021)

Abstract The present paper is concerned with improving matrix acidizing in carbonate formation. For this purpose, ultrasonic waves were added to conventional matrix acid stimulation to increase the acid reach inside the rock. This concept is based on a phonophoresis effect of the acid, applying a similar concept in pushing the stimulation acid deeper in the formation during matrix acidizing. This effect will have a great benefit in reaching larger stimulated areas and increasing the overall well productivity. Extensive laboratory experiments have shown that the rate of penetration of the acid when exposed simultaneously to ultrasonic wave irradiation reached almost 90% more than the acid only. This phenomena has been investigated through the use of CT scan analysis on the core samples. The penetration was instantaneous and rapid in reaching deeper length of the plug sample.
Refine penetrance estimates in the main pathogenic variants of transthyretin hereditary (familial) amyloid polyneuropathy (TTR-FAP) using a new non-parametric approach (NPSE) (2016)

International audience
AV1 benchmarking test for 3GPP (2022)

AV1 is the first-generation royalty free video coding standard developed by the Alliance for Open Media (AOM). Since it was finalized in 2018, there have been a lot of attempts to compare the compression efficiency of AV1 against previous generations of video coding standards, such as HEVC, VP9, etc. Some study results have been published previously, but the results vary significantly depending on test conditions and encoder configurations used. It is challenging to design a test configuration and align the encoding parameters to perform a benchmarking test between coding standards and their encoder implementations. Recently, 3GPP started an exploration project to evaluate next generation video coding standards, after AVC and HEVC, for consideration in future 3GPP standards and applications. In this project, a comprehensive set of test conditions was defined to compare the submitted coding specifications, including AV1, VVC, and EVC, versus HEVC and AVC. The evaluation was conducted using reference encoders for each specification. The reference encoders of each proposed coding specification were thoroughly tested using the defined test condition set to provide benchmarking data that could be used in their evaluation and possible inclusion for future 5G streaming services. In this paper, we will first discuss the test scenarios and test configurations for the 3GPP benchmarking test. Then, the detailed encoding parameters for the AV1 reference encoder, which comply with this set of test conditions, will be introduced and the benchmarking test result will be presented. Finally, we will introduce some encoding settings that can be applied to the AV1 reference encoder without some HM and VTM inspired restrictions defined in the test 3GPP test conditions and the corresponding compression efficiency improvement that can be achieved in the expected AV1 usage.
The Implicit Regularization of Ordinary Least Squares Ensembles (2019)

Ensemble methods that average over a collection of independent predictors that are each limited to a subsampling of both the examples and features of the training data command a significant presence in machine learning, such as the ever-popular random forest, yet the nature of the subsampling effect, particularly of the features, is not well understood. We study the case of an ensemble of linear predictors, where each individual predictor is fit using ordinary least squares on a random submatrix of the data matrix. We show that, under standard Gaussianity assumptions, when the number of features selected for each predictor is optimally tuned, the asymptotic risk of a large ensemble is equal to the asymptotic ridge regression risk, which is known to be optimal among linear predictors in this setting. In addition to eliciting this implicit regularization that results from subsampling, we also connect this ensemble to the dropout technique used in training deep (neural) networks, another strategy that has been shown to have a ridge-like regularizing effect.
A high‐specificity aniline‐based mass tag for aldehyde detection (2022)

CAX-A can provide three levels of specificity for aldehyde detection. First is the known labeling specificity of the aniline functional group for aldehydes, which we confirmed here by observing a significant peak only from the aldehyde (S/N = 3388) when a mixture of an aldehyde, a ketone (no peak), and a quinone (S/N = 2.3) was tested. Second is the ease of formation of an analyte-characteristic first product ion (via anchimeric-assisted loss of triethylamine as a neutral) in MS2 from a CAX-labeled analyte. Third is the formation of a characteristic second product ion via loss of CO in MS3. CAX-A enables the specific, convenient detection of putative aldehydes in urine.
Plasma sputtering synthesis of nanocatalyst for fuel cells: Experiments and molecular dynamics simulations (2018)

International audience
Ventricular Tachycardia Ablation in Severe Heart Failure (2017)

Despite greater baseline comorbidities, VT radiofrequency ablation can be safely performed among NYHA IV patients. Early VT recurrence is significantly associated with subsequent mortality regardless of NYHA status. Elimination of recurrent VT in NYHA IV patients may reduce mortality to a level comparable to NYHA II and III with arrhythmia recurrence.
The 2μm Plasmid ofSaccharomyces cerevisiae (2014)

The first part of this chapter is devoted to the 2µm circle partitioning system, a critical component of the plasmid's strategy for stable maintenance in yeast populations. The second part deals with plasmid copy number control, special attention being paid to the Flp recombination system that is believed to trigger a DNA amplification process. The chapter compares the 2µm plasmid with 2µm-like plasmids found in yeast and dwells briefly on the degree and the significance of conservation of structure and function among them. Binary fluorescence tagging of two separate plasmids in the same cell by using cyan fluorescence protein (CFP)-Lac repressor/Lac operators in one case and yellow fluorescent protein (YFP)-Tet repressor/Tet operators in the other is also feasible. Chromatin immunoprecipitation assays revealed that the integral cohesin component Mcd1p associates specifically with the STB DNA in a Rep1p- and Rep2p-dependent manner. Rank and colleagues have characterized 2µm plasmids from several amphiploid industrial strains of Saccharomyces cerevisiae and analyzed their sequence divergence with respect to plasmids from standard haploid laboratory strains. The Flp-FRT site-specific recombination system complements the partitioning system in the dual strategy by which stable high-copy maintenance of the 2μm plasmid is achieved. Plasmids lacking STB tend to dissociate from these sites and wander toward the nuclear periphery. These observations would be in line with the models for plasmid segregation considered in this chapter.
Mutual coupling reduction using metamaterial supersubstrate for high performance & densely packed planar phased arrays (2018)

This paper proposes on an effective mutual coupling suppression technique for planar phased array. This is achieved locating a metamaterial superstrate patch between radiation elements of phased array. The superstrate patch is realised by incorporating slots inside the patch, where the slots are arranged in 2×3 array column. The proposed mutual radiation decoupling technique is implemented on FR-4 substrate. Average coupling suppression of 5 dB is achieved on a low permittivity substrate over its operational frequency band. The proposed technique is (i) simple to implement; (ii) planar design; (iii) easily realised in practice; (iv) overcomes the shortcomings of poor front-to-back ratio previously reported in other radiation suppression techniques; and (v) applicable for densely packed microstrip. Furthermore, the proposed planar technique is highly versatile for various applications having stringent performance requirements.
The Influence of Glycosylation on the Catalytic and Fibrinolytic Properties of Pro-Urokinase (1992)

We previously found that human pro-UK expressed in Escherichia coli is more active in fibrinolysis than recombinant human pro-UK obtained from mammalian cell culture media. To determine whether this difference is related to the lack of glycosylation of the E. coli product, we compared the activity of E. coli-derived pro-UK [(-)pro-UK] with that of a glycosylated pro-UK [(+)pro-UK] and of a mutant of pro-UK missing the glycosylation site at Asn-302 [(-)(302)pro-UK]. The latter two pro-UKs were obtained by expression of the human gene in a mammalian cell. The nonglycosylated pro-UKs were activated by plasmin more efficiently (approximately 2-fold) and were more active in clot lysis (1.5-fold) than the (+)pro-UK. Similarly, the nonglycosylated two-chain derivatives (UKs) were more active against plasminogen and were more rapidly inactivated by plasma inhibitors than the (+)UK. These findings indicate that glycosylation at Asn-302 influences the activity of pro-UK/UK and could be the major factor responsible for the enhanced activity of E. coli-derived pro-UK.
Titanium Bis(amidinates) Bearing Electron Donating Pendant Arms as Catalysts for Stereospecific Polymerization of Propylene (2014)

A series of titanium bis(amidinate) complexes containing pendant arms as one of the amidinate N substituents have been prepared and studied in the polymerization of propylene after their activation with MAO and other cocatalysts. The type of pendant arm greatly influences the reactivity and stereospecificity of the resulting polymers. The effect of the cocatalyst nature, its amount, and the time of the reaction have a dramatic effect on the reactivity of a titanium bis(amidinate) bis(dimethylamido) precatalyst containing a furyl group at the pendant arm.
Table S2 from Proteogenomics Uncovers a Vast Repertoire of Shared Tumor-Specific Antigens in Ovarian Cancer (2023)

&lt;p&gt;Table S2&lt;/p&gt;
ChemInform Abstract: Carboxyl‐Mediated Pictet‐Spengler Reaction. Improved Synthesis of 2,3, 5,6,11,11b‐Hexahydro‐3‐oxo‐1H‐indolizino(8,7‐b)indoles from Tryptamine‐ 2‐carboxylic Acids. (1992)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.