gebhart/patrepeval huggingface dataset:
Physics Behind the Oscillation of Pressure Tensor Autocorrelation Function for Nanocolloidal Dispersions (2008)

In this work, extensive equilibrium molecular dynamics simulations are conducted to explore the physics behind the oscillation of pressure tensor autocorrelation function (PTACF) for nanocolloidal dispersions, which leads to strong instability in viscosity calculation. By reducing the particle size and density, we find the intensity of the oscillation decreases while the frequency of the oscillation becomes higher. Careful analysis of the relationship between the oscillation and nanoparticle characteristics reveals that the stress wave scattering/reflection at the particle-liquid interface plays a critical role in PTACF oscillation while the Brownian motion/vibration of solid particles has little effect. Our modeling proves that it is practical to eliminate the PTACF oscillation through suppressing the acoustic mismatch at the solid-liquid interface by designing special nanoparticle materials. It is also found when the particle size is comparable with the wavelength of the stress wave, diffraction of stress wave happens at the interface. Such effect substantially reduces the PTACF oscillation and improves the stability of viscosity calculation.
Patient acceptability of larval therapy for leg ulcer treatment: a randomised survey to inform the sample size calculation of a randomised trial (2006)

We found no evidence of widespread resistance to the utilisation of larval therapy from patients regardless of the method of larval therapy containment. These methods have the potential to inform sample size calculations where there are concerns of patient acceptability.
Environmental and social assessment (2005)

This environmental impact assessment for the Marine and Coastal Management Project (MACEMP) outlines a Process Framework (PF) for the Marine and Coastal Environment Management Project (MACEMP) in the United Republic of Tanzania (URT) discusses likely negative environmental impacts and proposes measures to mitigate them. MACEMP is proposed as a six-year project that will improve the management of coastal and marine resources, with a view to contributing to economic growth and poverty reduction in coastal communities. Possible negative impacts include: displacement; loss of habitual land and water uses; change to the quantity and/or quality of a resource a household can access; change in the seasonal access of the resource; change to the type of assets needed to access resources. Mitigation measures will be focused on identifying alternative livelihood opportunites. Also, as mitigation, affected groups will be offered alternative sources of funding and support for the development of alternative livelihood activities. Funding will be made available through the Coastal Village Fund. Other mitigating measures include: enhancing local crafts and trade activities; introducing mariculture activities such as seaweed harvesting, shellfish culture, fish cage aquaculture, or fish pond acquaculture.
Precoder Feedback Schemes for Robust Interference Alignment With Bounded CSI Uncertainty (2020)

This article presents limited feedback-based precoder quantization schemes for Interference Alignment (IA) with bounded channel state information (CSI) uncertainty. Initially, this work generalizes the min-max mean squared error (MSE) framework, followed by the development of robust precoder and decoder designs based on worst case MSE minimization. The proposed precoder and decoder designs capture the effect of CSI uncertainty using a single parameter, which is independent of the CSI uncertainty in the direct links. The IA algorithms derived employing these proposed designs are shown to be globally convergent under certain conditions. Moreover, precoder quantization schemes are presented for scenarios with and without CSI uncertainty for practical implementation of these techniques in systems with limited feedback. An optimal bit allocation scheme is presented to maximize the sum rate via analysis of the rate loss upper bound. Simulation results demonstrate the improved performance of the proposed IA schemes for various scenarios considering imperfect CSI as well as limited feedback.
Polarisation optics for monomode fibre sensors (1985)

Polarimetric monomode optical-fibre techniques offer many advantages for sensing applications. Both line-integral and line-differential methods may be used. Special features of the polarisation behaviour of monomode fibres, which arise in a variety of sensors, are discussed, with particular reference to the separation of linear- and circular-birefringence components. Possible uses of nonlinear optical effects and the future requirements for specialised fibres are also discussed.
Plasmodium APC3 mediates chromosome condensation and cytokinesis during atypical mitosis in male gametogenesis (2018)

The anaphase promoting complex/cyclosome (APC/C) is a highly conserved multi-subunit E3 ubiquitin ligase that controls mitotic division in eukaryotic cells by tagging cell cycle regulators for proteolysis. APC3 is a key component that contributes to APC/C function. Plasmodium, the causative agent of malaria, undergoes atypical mitotic division during its life cycle. Only a small subset of APC/C components has been identified in Plasmodium and their involvement in atypical cell division is not well understood. Here, using reverse genetics we examined the localisation and function of APC3 in Plasmodium berghei. APC3 was observed as a single focus that co-localised with the centriolar plaque during asexual cell division in schizonts, whereas it appeared as multiple foci in male gametocytes. Functional studies using gene disruption and conditional knockdown revealed essential roles of APC3 during these mitotic stages with loss resulting in a lack of chromosome condensation, abnormal cytokinesis and absence of microgamete formation. Overall, our data suggest that Plasmodium utilises unique cell cycle machinery to coordinate various processes during endomitosis, and this warrants further investigation in future studies.
Efficient manifold preserving audio source separation using locality sensitive hashing (2015)

We propose an efficient technique to learn probabilistic hierarchical topic models that are designed to preserve the manifold structure of audio data. The consideration of the data manifold is important, as it has been shown to provide superior performance in certain audio applications such as source separation. However, the high computational cost of a sparse encoding step due to the requirement of a large dictionary prevents it from being used in real-world applications such as real-time speech enhancement and the analysis of big audio data. In order to achieve a substantial speed-up of this step, while still respecting the data manifold, we propose to harmonize a particular type of locality sensitive hashing with the hierarchical topic model. The proposed use of hashing can reduce the computational complexity of the sparse encoding by providing candidates of non-zero activations, where the candidate set is built based on Hamming distance. The hashing step is followed by comprehensive sparse coding that considers those candidates only, rather than the entire dictionary. Experimental results show that the proposed hashing technique can provide audio source separation results comparable to the similar system without hashing, but with significantly less and cheaper computation.
Erratum: Enhancement of the Spin Accumulation at the Interface between a Spin-Polarized Tunnel Junction and a Semiconductor [Phys. Rev. Lett.102, 036601 (2009)] (2011)

In the beginning of this Letter [1], we gave a literal expression for a characteristic threshold resistance r 1 of a semiconductor [2] at an interface with a magnetic tunnel junction as r 1 l sf W=w, where is the semiconductor resistivity, l sf its spin diffusion length, W the contact width, and w the channel thickness. This was derived in the standard theory of spin diffusion or relaxation in the conduction band However, the previous expression is correct only in the limit where l sf ) W; w. In the case of a spin diffusion length well shorter than the contact width W (l sf ( W) but still in the limit l sf ) w as in the experimental situation, r 1 should instead write r 1 l sf 2 =w [5]. In this limit, it results that the correct spin resistance area product writes R S A 2 r 1 2 l 2 sf =w ' l 2 sf =w ' 200 m 2 for a maximal value of 1 ( is the tunnel spin asymmetry coefficient Since the expected R S A product appears even smaller than the one previously reported (1 k m 2 ), it does not change the core of the Letter emphasizing the role of the surface states (or localized states) at the direct oxidesemiconductor interfaces giving rise to a strong amplification of the spin signal at the level of 3:6 M m 2 or beyond [8] as experimentally observed.
Dry Discontinuous Anaerobic Percolation Digestion DDAPD (2014)

International audience
EVALUATION OF ADSORTIVE POWER OF CACTUS PEAR FORAGE WITHOUT PEEL FOR USE IN REMOVAL OF COMMON GASOLINE IN WATER BODIES (2019)

Alternative methods, as adsorption, with use of readily available and low cost materials have been used to remove contaminants in water bodies. Objective of this work was to study adsorptive power of cactus pear forage (Opuntia tuna Mill) biomass without bark as adsorbent for removal of gasoline in water bodies. Material underwent a natural drying process and then comminution to powder form. In adsorption kinetics study, were evaluated time between 5 and 60 minutes (with a 5-minute interval) and equilibrium concentrations of contaminants ranging from 5 to 50%, with a 5% variation rate. It was observed that process was rapid, with greater adsorption efficiency over time for 30 minutes. Langmuir model fitted well to experimental data, with a maximum adsorption capacity of 5.94 g.g -1. Results confirm that cactus pear forage without peel appears as a promising biomass in gasoline adsorption process.
A probabilistic model on crack initiation modes of metallic materials in very high cycle fatigue (2016)

In the very high cycle regime, the duplex S-N property consisting of S-N curve for surface-initiated fracture and that for interior-initiated fracture was often reported for high strength steels. However, recent studies show us the fact that the surface-initiated fracture can be sometimes observed even at low stress levels in the very high cycle regime. In the case of interior fracture mode, a non-metallic inclusion is usually found at the center of the fish-eye. If we suppose that such inclusions are distributed at random inside the material space, a certain number of inclusions would be located within the thin surface layer of the specimen. In such cases, the fatigue crack can take place within the surface layer giving the surface-initiated fracture even in the very high cycle regime. In the present work, the authors have attempted to construct a probabilistic model on the overall feature of these crack initiation modes in the very high cycle regime under the loading type of rotating bending. Thus, based on the distribution property of the inclusions inside the material, the appearing probability of the surface-initiated fracture and the distribution characteristics of the fatigue strength at N=109 cycles were well explained by the present model.
Ceramide-induced integrated stress response overcomes Bcl-2 inhibitor resistance in acute myeloid leukemia (2022)

Inducing cell death by the sphingolipid ceramide is a potential anticancer strategy, but the underlying mechanisms remain poorly defined. In this study, triggering an accumulation of ceramide in acute myeloid leukemia (AML) cells by inhibition of sphingosine kinase induced an apoptotic integrated stress response (ISR) through protein kinase R-mediated activation of the master transcription factor ATF4. This effect led to transcription of the BH3-only protein Noxa and degradation of the prosurvival Mcl-1 protein on which AML cells are highly dependent for survival. Targeting this novel ISR pathway, in combination with the Bcl-2 inhibitor venetoclax, synergistically killed primary AML blasts, including those with venetoclax-resistant mutations, as well as immunophenotypic leukemic stem cells, and reduced leukemic engraftment in patient-derived AML xenografts. Collectively, these findings provide mechanistic insight into the anticancer effects of ceramide and preclinical evidence for new approaches to augment Bcl-2 inhibition in the therapy of AML and other cancers with high Mcl-1 dependency.
Modeling the Configuration of HF Electrical Antennas for Deep Bistatic Subsurface Sounding (2010)

In the frame of the European Space Agency's 2016 ExoMars mission, the Electromagnetic Investigation of the SubSurface (EISS) ground-penetrating radar has been designed and developed to perform deep soundings of the Martian subsurface from the surface. The EISS is designed to take advantage of the potential for bistatic radar investigations of the Martian subsurface between the fixed station (Lander) and the mobile platform (rover) and to characterize the 3-D structure and stratigraphy of the subsurface at depths ranging from 100 m to a few kilometers out to a 1-km radius around the lander. The EISS makes use of an electric dipole antenna made of two identical 35-m resistively loaded monopoles to transmit (and also receive in a monostatic mode) the high-frequency signal. However, the EISS's most innovative capability is its potential for bistatic operation, made possible by the accommodation of a small magnetic sensor on the rover (as initially planned for the ExoMars mission) which can measure the magnetic field (all three components) of the received waves whatever the direction and orientation of the rover. The aim of this paper is to show that the two monopoles of the antenna must be deployed on the surface in nearly opposite directions but not aligned to ensure good volume coverage around the transmitter. This paper is based on Finite Difference in Time Domain (FDTD) electromagnetic simulations. The simulated data have been used to study the impact of the angle between these two monopoles on the instrument performance.
The Costa Concordia last cruise: The first application of high frequency monitoring based on COSMO-SkyMed constellation for wreck removal (2015)

The Italian vessel Costa Concordia wrecked on January 13th 2012 offshore the Giglio Island (Tuscany, Italy), with the loss of 32 lives. Salvage operation of the vessel started immediately after the wreck. This operation was the largest and most expensive maritime salvage ever attempted on a wrecked ship and it ended in July 2014 when the Costa Concordia was removed from the Giglio Island, and dragged in the port of Genoa where it was dismantled. The refloating and removal phases of the Costa Concordia were monitored, in the period between 14th and 27th of July, exploiting SAR (Synthetic Aperture Radar) images acquired by the X-band COSMO-SkyMed satellite constellation in crisis mode. The main targets of the monitoring system were: (i) the detection of possible spill of pollutant material from the vessel and (ii) to exclude that oil slicks, illegally produced by other vessels, could be improperly linked to the naval convoy during its transit along the route between the Giglio Island and the port of Genoa. Results point out that the adopted monitoring system, through the use of the COSMO-SkyMed constellation, can be profitably employed to monitor emergency phases related to single ship or naval convoy over wide areas and with a suitable temporal coverage. Furthermore, the refloating and removal phases of the Costa Concordia were a success because no pollution was produced during the operations.
ChemInform Abstract: Synthesis of Medium‐Ring Lactones via Tandem Methylenation/Claisen Rearrangement of Cyclic Carbonates. (2000)

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.
Gain of chromosome band 7q11 in papillary thyroid carcinomas of young patients is associated with exposure to low-dose irradiation (2011)

The main consequence of the Chernobyl accident has been an increase in papillary thyroid carcinomas (PTCs) in those exposed to radioactive fallout as young children. Our aim was to identify genomic alterations that are associated with exposure to radiation. We used array comparative genomic hybridization to analyze a main (n = 52) and a validation cohort (n = 28) of PTC from patients aged <25 y at operation and matched for age at diagnosis and residency. Both cohorts consisted of patients exposed and not exposed to radioiodine fallout. The study showed association of a gain on chromosome 7 (7q11.22-11.23) with exposure (false discovery rate = 0.035). Thirty-nine percent of the exposed group showed the alteration; however, it was not found in a single case from the unexposed group. This was confirmed in the validation set. Because only a subgroup of cases in the exposed groups showed gain of 7q11.22-11.23, it is likely that different molecular subgroups and routes of radiation-induced carcinogenesis exist. The candidate gene CLIP2 was specifically overexpressed in the exposed cases. In addition, the expression of the genes PMS2L11, PMS2L3, and STAG3L3 correlated with gain of 7q11.22-11.23. An enrichment of Gene Ontology terms "DNA repair" (PMS2L3, PMS2L5), "response to DNA damage stimulus" (BAZ1B, PMS2L3, PMS2L5, RFC2), and "cell-cell adhesion" (CLDN3, CLDN4) was found. This study, using matched exposed and unexposed cohorts, provides insights into the radiation-related carcinogenesis of young-onset PTC and, with the exposure-specific gain of 7q11 and overexpression of the CLIP2 gene, radiation-specific molecular markers.
Coordinated Response to SARS, Vancouver, Canada (2006)

Two Canadian urban areas received travelers with severe acute respiratory syndrome (SARS) before the World Health Organization issued its alert. By July 2003, Vancouver had identified 5 cases (4 imported); Toronto reported 247 cases (3 imported) and 43 deaths. Baseline preparedness for pandemic threats may account for the absence of sustained transmission and fewer cases of SARS in Vancouver.
Performance improvement of Au/Si infrared photodetector using high efficiency light absorbing nanostructure and backside illumination. (2019)

This paper reports on performance improvement of Au/Si infrared photodetector using high efficiency light absorbing nanostructure and backside illumination. We developed an infrared photodetector using nano-cuboids formed on an n-typed Si. Using FTIR, we confirmed that the Au nano-cuboids has about 20% reflectance in the near-infrared region. Therefore, this nanostructure performed as a high efficiency infrared light absorber. The absorbed photo energy was transduced to photocurrent by a Schottky barrier formed at the interface between Au/n-typed Si. We confirmed that the high efficiency light absorbing nanostructure has several times more infrared light detection sensitivity than the conventional structure. By backside illumination, we confirmed infrared detection sensitivity more than 10 times than previous research.
Whole-brain analytic measures of network communication reveal increased structure-function correlation in right temporal lobe epilepsy (2016)

The in vivo structure-function relationship is key to understanding brain network reorganization due to pathologies. This relationship is likely to be particularly complex in brain network diseases such as temporal lobe epilepsy, in which disturbed large-scale systems are involved in both transient electrical events and long-lasting functional and structural impairments. Herein, we estimated this relationship by analyzing the correlation between structural connectivity and functional connectivity in terms of analytical network communication parameters. As such, we targeted the gradual topological structure-function reorganization caused by the pathology not only at the whole brain scale but also both in core and peripheral regions of the brain. We acquired diffusion (dMRI) and resting-state fMRI (rsfMRI) data in seven right-lateralized TLE (rTLE) patients and fourteen healthy controls and analyzed the structure-function relationship by using analytical network communication metrics derived from the structural connectome. In rTLE patients, we found a widespread hypercorrelated functional network. Network communication analysis revealed greater unspecific branching of the shortest path (search information) in the structural connectome and a higher global correlation between the structural and functional connectivity for the patient group. We also found evidence for a preserved structural rich-club in the patient group. In sum, global augmentation of structure-function correlation might be linked to a smaller functional repertoire in rTLE patients, while sparing the central core of the brain which may represent a pathway that facilitates the spread of seizures.
Čerenkov second-harmonic generation in the strong conversion limit: new effects (1996)

Using beam propagation method calculations, we show that new effects occur for second-harmonic generation in the Cerenkov regime when it is optimized for efficient coupling to leaky modes. The fundamental throughput becomes independent of the input power over a few decades; i.e., optical power limiting is found. At even higher input powers, the fundamental throughput abruptly switches back to approximately the input power as a consequence of generating coupled second-harmonic-fundamental solitary waves in the waveguide because of the cascading effect.
High expression of Bacillus licheniformisα‐amylase with a Bacillus secretion vector (1986)

A gene coding for the heat-stable alpha-amylase from Bacillus licheniformis ATCC14580 has been expressed with the aid of a B. amyloliquefaciens alpha-amylase-based expression/secretion vector by joining the structural part of the gene to a pool of vectors after the B. amyloliquefaciens alpha-amylase promoter and signal sequence. The recombinant plasmids obtained were stably maintained in B. subtilis and the heat-stable alpha-amylase activity rose several hundred times from the level of the donor. Eight different constructions were further analyzed. Each of them had an intact B. amyloliquefaciens signal sequence, the only difference being in a few nucleotides beyond the C terminus of the signal peptide. This, however, was enough to cause up to fourfold differences in protein yield. Possible reasons for the variation in the production level are discussed.
Liquid crystal millimeter wave electronic phase shifter (1993)

The birefringence of two common nematic liquid crystals were measured in the millimeter wave range, and were found to be in the range of 0.19–0.22 at room temperature. Using liquid crystal electro- and magneto-optical effects, we present the first experimental data of a novel liquid crystal millimeter wave electronic phase shifter. Our experiments show that liquid crystals could play an important role in future millimeter wave device technologies.
Caught in the middle with multiple displacement amplification: the myth of pooling for avoiding multiple displacement amplification bias in a metagenome (2014)

MDA should be avoided for metagenomic investigations that require quantitative estimates of microbial taxa and gene functional groups. While MDA is an indispensable technique in applications such as single-cell genomics, amplification biases cannot be overcome by combining replicate MDA reactions. Alternative library preparation techniques should be utilized for quantitative microbial ecology studies utilizing metagenomic sequencing approaches.