cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Iceberg Detection Using Compact Polarimetric Synthetic Aperture Radar
Creators: name: Denbina, Michael
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Remote Sensing
subject: Engineering--Electronics and Electrical
subject: Engineering--Marine and Ocean
subject: icebergs
subject: iceberg detection
subject: Synthetic Aperture Radar
subject: Circular Polarization
subject: Compact polarimetry
subject: Arctic
subject: polarization
subject: Stokes vector

description: The management and monitoring of icebergs and sea ice is an important consideration for any maritime operations that take place in the polar and near-polar regions. Spaceborne synthetic aperture radar (SAR) satellites can provide iceberg detection capabilities over vast areas of ocean with a quick revisit time. Canada's next Radarsat satellite, the Radarsat Constellation, will collect compact polarimetry, a polarimetric SAR configuration that transmits a circular polarization rather than the typical linear horizontal or vertical polarizations. In doing so, it can provide greater polarimetric information than typical linear dual-polarized SAR, without the swath width restrictions of fully polarimetric or quad-polarized SAR. In this thesis, the use of compact polarimetry for iceberg detection is explored. The detection performance of Radarsat Constellation data, simulated using Radarsat-2 data, is assessed using validated iceberg locations collected by a survey vessel. Many new algorithms are tested for use with compact polarimetric SAR data, including detection methods that use pseudo quad-pol reconstruction, wherein quad-pol covariance matrix elements are approximated using the compact polarimetric covariance matrix. Detection using the Stokes parameters is also tested, both through the use of the skew-normal distribution to model the Stokes vector ocean clutter, and also by using the Stokes parameters to calculate the orientation and ellipticity of the polarization ellipse. A method is proposed where the polarization ellipse parameters are then used to vary the detection threshold for each pixel. Discrimination of ships and icebergs after target detection, using a support vector machine classifier, is also demonstrated. Overall, the compact polarimetric data significantly outperformed the linear dual-polarized data, both in iceberg detection and ship/iceberg discrimination. Compact polarimetry shows much promise for maritime surveillance applications.
Weak GPS Signal Acquisition Using Antenna Diversity
Creators: name: Mozaffari, Mohammad
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Engineering--Electronics and Electrical
subject: Acquisition
subject: Weak signals
subject: Acquisition time
subject: Diversity

description: GNSS Acquisition in fading and attenuated environments is challenging. In these situations, additional processing gain is required. A common method is to extend the coherent integration time. However, in weak signal situations, using only long coherent integration is limited by navigation data bit transitions and receiver oscillator instability. Using non-coherent and differentially coherent integration mitigates the bit transition problem but has lower processing gain as compared to coherent integration. Coherent, non-coherent and differentially coherent combining methods are not effective in dense multipath fading situations where the carrier-to-noise ratio (C/N0) varies significantly. Spatial antenna diversity provides additional processing gain to overcome multipath fading since multiple antennas detect signal components from independent fading channels. This thesis evaluates equal gain combining of two independent antennas in a standalone acquisition process. Traditionally acquisition has been evaluated at the cell level, which considers only a single cell, but in this thesis acquisition is assessed at the system level, where the complete acquisition process including the entire search space is examined. Receiver Operating Characteristic (ROC) curves in both cell and system levels are presented and compared both theoretically and using real data. Overall detection probability, probability of false alarm and acquisition time are investigated in terms of the mean and variance values. Optimal values for the integration time as well as combination of coherent and non-coherent integration that minimizes the mean acquisition time are obtained. The theoretical analysis is compared with Monte Carlo simulations and real GPS data results. Compared to a single antenna, smoother signal-to-noise ratio (SNR) values which show the fading mitigation were observed by applying diversity combining. Experimental results demonstrate the improvement of detection probability, enhanced immunity against false alarms, and significant reduction of the mean and variance of acquisition time in dense multipath environments.
SIMBIO-SYS Checkout#01 Test Summary
Creators: name: ZUSI, MICHELE
name: SIMIONI, EMANUELE
name: DELLA CORTE, VINCENZO
name: CICCHETTI, ANDREA
name: POLITI, ROMOLO
name: CAPRIA, MARIA TERESA
name: CAPACCIONI, FABRIZIO
name: Doressoundiram, Alain
name: PALUMBO, PASQUALE
name: Vincendon, Mathiu
name: CREMONESE, Gabriele
Publisher: name: IAPS Roma
Year: 2020

description: Per la mia meravigliosa famiglia
description: In this document we describe all the tests to be performed during the Instrument CheckOut (ICO) # 01 for the Spectrometers and Imagers for MPO BepiColombo Integrated Observatory SYStem (SIMBIO-SYS).
TURAS Dissemination Strategy: Deliverable 8.3 of the TURAS Project
Creators: name: McQuaid, Siobhán
name: Collier, Marcus J.
Publisher: name: Zenodo
Year: 2011
Subjects: Resilience
Dissemination
Cities
Urban
Strategy
Urban planning
Urban transformation
Sustainability
Urban sprawl
Urban Policy

description: This task is concerned with developing the initial dissemination and exploitation strategy and plan for TURAS detailing the objectives and planned activities for the duration of the project. This will include an overview of the key messages, target audiences, communication activities and expected results. For additional information on the TURAS project see here, or email marcus.collier@tcd.ie.
description: Suggested citation: McQuaid, S. and Collier, M.J. (2011) TURAS Dissemination Strategy. Deliverable 8.3 of the TURAS FP7 Project. Available at: https://doi.org/10.5281/zenodo.3941788.
WD J004917.14$-$252556.81, the Most Massive Pulsating White Dwarf
Creators: name: Kilic, Mukremin
name: Córsico, Alejandro H.
name: Moss, Adam G.
name: Jewett, Gracyn
name: De Gerónimo, Francisco C.
name: Althaus, Leandro G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present APO and Gemini time-series photometry of WD J004917.14$-$252556.81, an ultramassive DA white dwarf with $T_{\rm eff} = 13020$ K and $\log{g} = 9.34$. We detect variability at two significant frequencies, making J0049$-$2525 the most massive pulsating white dwarf currently known with $M_\star=1.31~M_{\odot}$ (for a CO core) or $1.26~M_{\odot}$ (for an ONe core). J0049$-$2525 does not display any of the signatures of binary mergers, there is no evidence of magnetism, large tangential velocity, or rapid rotation. Hence, it likely formed through single star evolution and is likely to have an ONe core. Evolutionary models indicate that its interior is $\gtrsim99$% crystallized. Asteroseismology offers an unprecedented opportunity to probe its interior structure. However, the relatively few pulsation modes detected limit our ability to obtain robust seismic solutions. Instead, we provide several representative solutions that could explain the observed properties of this star. Extensive follow-up time-series photometry of this unique target has the potential to discover a significant number of additional pulsation modes that would help overcome the degeneracies in the asteroseismic fits, and enable us to probe the interior of an $\approx1.3~M_{\odot}$ crystallized white dwarf.
description: MNRAS, in press
A GP-MOEA/D Approach for Modelling Total Electron Content over Cyprus
Creators: name: Konstantinidis, Andreas
name: Haralambous, Haris
name: Agapitos, Alexandros
name: Papadopoulos, Harris
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Vertical Total Electron Content (vTEC) is an ionospheric characteristic used to derive the signal delay imposed by the ionosphere on near-vertical trans-ionospheric links. The major aim of this paper is to design a prediction model based on the main factors that influence the variability of this parameter on a diurnal, seasonal and long-term time-scale. The model should be accurate and general (comprehensive) enough for efficiently approximating the high variations of vTEC. However, good approximation and generalization are conflicting objectives. For this reason a Genetic Programming (GP) with Multi-objective Evolutionary Algorithm based on Decomposition characteristics (GP-MOEA/D) is designed and proposed for modeling vTEC over Cyprus. Experimental results show that the Multi-Objective GP-model, considering real vTEC measurements obtained over a period of 11 years, has produced a good approximation of the modeled parameter and can be implemented as a local model to account for the ionospheric imposed error in positioning. Particulary, the GP-MOEA/D approach performs better than a Single Objective Optimization GP, a GP with Non-dominated Sorting Genetic Algorithm-II (NSGA-II) characteristics and the previously proposed Neural Network-based approach in most cases.
Exploring the Metabolic Networks of the Nematodes Caenorhabditis elegans and Ascaris suum for Potential Drug Targets
Creators: name: Li, Keyu
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Bioinformatics
subject: FOS: Computer and information sciences
subject: metabolic network
subject: chokepoint analysis
subject: ascaris suum
subject: caenorhabditis elegans

description: Ascaris suum and Ascaris lumbricoides are widespread parasitic nematodes infecting pigs and humans respectively, causing infections of health and economic importance. Resistance to the available drug treatments is emerging. Thus, there is an urgent need to explore novel drug targets. The free-living nematode Caenorhabditis elegans is regarded as an ideal model for investigating nematode development and biochemistry. Here, we carefully reconstructed the metabolic networks for C. elegans and A. suum. The differential expression of enzymes across the two species’ life-cycle stages gave an insight into the development of the parasite. Chokepoint analysis was performed in both species, and its robustness test on the C. elegans network validated the method’s capacity to imperfect metabolic reconstruction. We identified 208 chokepoint enzymes in A. suum, and five of them were predicted as potential drug targets.
Computational studies for reduced graphene oxide in hydrogen-rich environment
Creators: name: Abolfath, Ramin M.
name: Cho, Kyeongjae
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We employ molecular dynamic simulations to study the reduction process of graphene-oxide (GO) in a chemically active environment enriched with hydrogen. We examine the concentration and pressure of hydrogen gas as a function of temperature in which abstraction of oxygen is possible with minimum damage to C-sp$^2$ bonds hence preserving the integrity of the graphene sheet. Through these studies we find chemical pathways that demonstrate beneficiary mechanisms for the quality of graphene including formation of water as well as suppression of carbonyl pair holes in favor of hydroxyl and epoxy formation facilitated by hydrogen gas in the environment.
description: 9 pages and 9 figures. Animations and movies are available at: http://qmsimulatorgojpc.wordpress.com/
Neuro-OSVETA: A Robust Watermarking of 3D Meshes
Creators: name: Vasc, Bata
name: Raveendran, Nithin
name: Vasic, Bane
Publisher: name: arXiv
Year: 2023
Subjects: subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Best and practical watermarking schemes for copyright protection of 3D meshes are required to be blind and robust to attacks and errors. In this paper, we present the latest developments in 3D blind watermarking with a special emphasis on our Ordered Statistics Vertex Extraction and Tracing Algorithm (OSVETA) algorithm and its improvements. OSVETA is based on a combination of quantization index modulation (QIM) and error correction coding using novel ways for judicial selection of mesh vertices which are stable under mesh simplification, and the technique we propose in this paper offers a systematic method for vertex selection based on neural networks replacing a heuristic approach in the OSVETA. The Neuro-OSVETA enables a more precise mesh geometry estimation and better curvature and topological feature estimation. These enhancements result in a more accurate identification of stable vertices resulting in significant reduction of deletion probability.
description: 10 pages, 5 figures
ABU RAYKHAN BERUNI'S VIEWS ON EDUCATION
Creators: name: Artikov, T.A.
name: Mamadaliyev, M.U.
Publisher: name: Zenodo
Year: 2023

description: The article mentions the views of our great compatriot, encyclopedist Abu Raikhan Beruni on ethics and education. His legacy has been studied the most, and it is mentioned that it is an important source in the organization of youth education and teaching science in Uzbekistan today.
title: TUHH Spektrum Mai 2014
title: TUHH Spectrum May 2014
titleType: AlternativeTitle
Creators: name: Präsident Der Technischen Universität Hamburg-Harburg
Publisher: name: TUHH Universitätsbibliothek
Year: 2014
Subjects: subject: 000: Allgemeines, Wissenschaft
subject: 620: Ingenieurwissenschaften
subject: Hamburg / Technische Universität
subject: Zeitschrift
subject: 000
subject: 620

description: - Technik für den Menschen : TU-Forscher entwickeln bionische Handprothese - Ausländische Studierende über ihr Leben in Hamburg - Streitgespräch über Schönheit in Kunst und Wisssenschaft - Für Technik-Bastler: ein FabLab an der TU
Spatial Coherency Estimation with a Synthetic Array
Creators: name: Li, Yuqi
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Engineering--Electronics and Electrical
subject: Multipath
subject: Synthetic Array
subject: Spatial correlation
subject: Angle of Arrival
subject: Eigendecomposition

description: Today, many mobile applications rely on the location of User Equipment (UE) with a built-in wireless receiver and complementary sensors. The performance of wireless localization algorithms depends on the existence of Line-of-Sight (LOS) propagation conditions. However, the existence of Non-Line-of-Sight (NLOS) propagation conditions adds considerable errors to the measurements such as Angles of Arrival (AOA). Synthetic Array (SA) processing synthesizes an array antenna by using a single moving antenna whose short-range trajectory can be estimated precisely by some complementary sensors, which enables the use of space-time processing to deal with the NLOS problem. The main objective of this thesis is to assess the multipath degree by utilizing SA processing. An Eigenvalue Exponential Spread (EES) factor is proposed to estimate the spatial coherency and hence the multipath degree. Theoretical analysis and experiment results strongly reveal that the EES factor is capable of indicating the spatial coherency and AOA estimation performance.
Exosomes derived from human mesenchymal stem cells preserve mouse islet survival and insulin secretion function
Creators: name: Keshtkar, Somayeh
name: Kaviani, Maryam
name: Sarvestani, Fatemeh Sabet
name: Ghahremani, Mohammad Hossein
name: Aghdaei, Mahdokht Hossein
name: Al-Abdullah, Ismail H.
name: Azarpira, Negar
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2020
Subjects: subject: Mesenchymal stem cell
subject: Exosome
subject: Islet
subject: Viability
subject: Function
subject: VEGF
subject: 610

description: Islet cell death and loss of function after isolation and before transplantation is considered a key barrier to successful islet transplantation outcomes. Mesenchymal stem cells (MSCs) have been used to protect isolated islets owing to their paracrine potential partially through the secretion of vascular endothelial growth factor (VEGF). The paracrine functions of MSCs are also mediated, at least in part, by the release of extracellular vesicles including exosomes. In the present study, we examined (i) the effect of exosomes from human MSCs on the survival and function of isolated mouse islets and (ii) whether exosomes contain VEGF and the potential impact of exosomal VEGF on the survival of mouse islets. Isolated mouse islets were cultured for three days with MSC-derived exosomes (MSC-Exo), MSCs, or MSC-conditioned media without exosomes (MSC-CM-without-Exo). We investigated the effects of the exosomes, MSCs, and conditioned media on islet viability, apoptosis and function. Besides the expression of apoptotic and pro-survival genes, the production of human and mouse VEGF proteins was evaluated. The MSCs and MSC-Exo, but not the MSC-CM-without-Exo, significantly decreased the percentage of apoptotic cells and increased islet viability following the downregulation of pro-apoptotic genes and the upregulation of pro-survival factors, as well as the promotion of insulin secretion. Human VEGF was observed in the isolated exosomes, and the gene expression and protein production of mouse VEGF significantly increased in islets cultured with MSC-Exo. MSC-derived exosomes are as efficient as parent MSCs for mitigating cell death and improving islet survival and function. This cytoprotective effect was probably mediated by VEGF transfer, suggesting a pivotal strategy for ameliorating islet transplantation outcomes.
description: EXCLI Journal;Vol. 19 2020
The Elastic Properties of Carbonaceous Chondrites
Creators: name: Ibrahim, El-Mahadia
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Geophysics
subject: Earth Sciences
subject: Planetary Science
subject: Geology
subject: Geophysics

description: Asteroids have diverse lithologies as reflected in the range of recovered meteorites. Size distributions of clasts of asteroid 25143 Itokawa (LL-chondrite) and Tagish Lake meteorites (ungrouped C2 carbonaceous chondrite) indicate variation in fragmentation behavior. The steeper size distribution of the carbonaceous lithology apparently reflects its lower strength. A comparison between the smooth and rough terranes on Itokawa shows that fracturing or intracrater flows apparently eliminate larger fragments. Carbonaceous chondrites’ P- and S-wave velocities, which are indicators of the elastic moduli, exhibit variation with bulk density, petrologic type, and cosmic-ray exposure ages. The hydrated carbonaceous chondrites apparently record damage from collisions with weaker objects as indicated by their decrease of elastic velocities in proportion to their cosmic ray exposure ages. These inferred collisions are frequent relative to exposure ages of other major meteorite groups. These weaker impactors are not sampled in our meteorite collections, but are evidenced in the fireball population.
Study of nuclear giant resonances using a Fermi-liquid method
Creators: name: Sun, Bao-Xi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The nuclear giant resonances are studied by using a Fermi-liquid method, and the nuclear collective excitation energies of different values of $l$ are obtained, which are fitted with the centroid energies of the giant resonances of spherical nuclei, respectively. In addition, the relation between the isovector giant resonance and the corresponding isoscalar giant resonance is discussed.
description: 6 pages, 3 tables. Proceedings of the 13th National Conference on Nuclear Structure in China, Chi-Feng, Inner Mongolia, China, 24-30 July 2010. "Nuclear Structure in China 2010", p181-186, edited by H. B. Bai, J. Meng, E. G. Zhao and S. G. Zhou, World Scientific Publishing Co. Pte. Ltd. 2011
Vector exchanges in production of light meson pairs and elementary atoms
Creators: name: Gevorkyan, S. R.
name: Kuraev, E. A.
name: Volkov, M. K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The production of pseudoscalar and scalar mesons pairs and bound states (positronium or pionium atoms) in high energy $γγ$ collisions at high energies provided by photon or vector meson exchanges are considered. The vector exchanges lead to nondecreasing with energy cross section of binary process $γ+γ\to h_a+h_b$ with $h_a, h_b$ states in the fragmentation regions of initial particles. The production of light mesons pairs $ππ, ηη, η'η', σσ$ as well as a pairs of positronium $Ps$ and pionium $A_π$ atoms in peripheral kinematics are discussed. Unlike the photon exchange the vector meson exchange needs a reggeization, leading to fall with energy. Nevertheless due to peripheral kinematics out of very forward production angles the vector meson exchanges dominated. The proposed approach allows to express the matrix elements of the considered processes through impact factors, which can be calculated in perturbation models like Chiral Perturbation Theory (ChPT) or Nambu-Jona-Lasinio (NJL) model or determined from $γγ$ sub-processes or vector mesons radiative decay widths. We obtain the cross sections for pionium atom production in collisions of high energy pions and electrons with protons. The possibility to measure these processes in experiment are discussed.
description: 12 pages, 2 figures
Generalization of the Taylor formula
Creators: name: Ionescu, D. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: The paper contains an interesting generalization of the classical Taylor expansion formula and four applications
description: 5 pages, translation from Romanian by H.C. Rosu
Insights into Geyser Behavior: The Role of Non-Condensable Gas
Creators: name: Ladd, Bethany
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Dissolved Gas
subject: Geyser
subject: Hydrothermal

description: Geysers are highly dynamic systems controlled by poorly understood mechanisms in the subsurface. The purpose of this work is to better understand the role of non-condensable gas in geysers. Two case studies were conducted, the first to determine how non-condensable gas may influence the eruption mechanism in hot water systems, and the second to elucidate gas dynamics in a cold water geyser driven by non-condensable gas. The first case study was carried out in five hot water geysers and springs and one cool water spring within the hydrothermal system of Yellowstone National Park. Non-condensable gases, primarily magmatic CO2, are present in Yellowstone waters, but to our knowledge no field-based research has directly addressed how such gases may affect the eruption process. In order to understand the evolution of geyser waters and dissolved gases on an eruption interval time-scale, we collected continuous in situ water quality data during eruption intervals and took time series water samples for major element chemistry, isotope, and dissolved gas analysis. Total dissolved gas pressure (PTDG) and temperature measurements were used to isolate water vapor pressure and non-condensable gas pressure. Using these data, we estimated CO2 concentrations in deep groundwater below Spouter Geyser. Although dissolved gas analysis shows that CO2 concentration is a minor component (< 1% of PTDG) in surface waters of Spouter Geyser, subsurface concentrations may reach levels greater than solubility preceding an eruption at corresponding pressures and temperatures. We propose that ebullition of CO2 may induce boiling to drive an eruption in hot water systems. The second case study was conducted at Crystal Geyser, a borehole drilled into a natural CO2 reservoir in east-central Utah. Studying this feature is useful for understanding modes of leakage from future anthropogenic carbon storage sites, but comprehensive gas monitoring at this site is currently lacking. We measured PTDG along with water pressure, temperature, and electrical conductivity at three depths every minute throughout the eruption cycle, and collected water samples for the same analyses as above. We found that the geyser cycle consists of three phases, 1) Recovery Phase, 2) Minor Eruptions Phase, and 3) Major Eruption Phase. Waters contain 100% CO2, and thus PTDG can show variations in CO2 release. PTDG is a necessary tool for future Crystal Geyser studies and is recommended for use in carbon storage projects as well.
Knockdown of CSNK2β suppresses MDA-MB231 cell growth, induces apoptosis, inhibits migration and invasion
Creators: name: Karna, Shibendra Kumar Lal
name: Lone, Bilal Ahmad
name: Ahmad, Faiz
name: Shahi, Nerina
name: Pokharel, Yuba Raj
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2020
Subjects: subject: CSNK2β
subject: Breast cancer
subject: Apoptosis
subject: Migration
subject: 610

description: Breast cancer is the most common cancer among women worldwide. Among different types of breast cancer known, treatment of triple-negative breast cancer is a major challenge because of its aggressiveness and poor prognosis; thus, identification of specific drivers is required for targeted therapies of breast cancer malignancy. Protein Casein Kinase (CSNK) is a serine/threonine kinase that exists as a tetrameric complex consisting of two catalytic (α and /or α') and two regulatory β subunits. CSNK2β can also function independently without catalytic subunits and exist as a distinct population in cells. This study aims to elucidate the role of Casein Kinase 2β (CSNK2β) gene in cell proliferation, cell cycle, migration and apoptosis of triple-negative breast cancer MDA-MB-231 cells. The silencing of CSNK2β in MDA-MB-231 cells resulted in decreased cell viability and colony formation. Cell cycle analysis showed a significant arrest of cells in G2M phase. Hoechst and CM-H2DCFDA staining showed nuclear condensation and augmented intracellular reactive oxygen species (ROS) production. Furthermore, silencing of CSNK2β in MDA-MB-231 cells modulated the apoptotic machinery- BAX, Bcl-xL, and caspase 3; autophagy machinery-Beclin-1 and LC3-1; and inhibited the vital markers (p-ERK, c-Myc, NF-κB, E2F1, PCNA, p38-α) associated with cell proliferation and DNA replication pathways. In addition, knockdown of CSNK2β also affected the migration potential of MDA-MB-231, as observed in the wound healing and transwell migration assays. Altogether, the study suggests that CSNK2β silencing may offer future therapeutic target in triple-negative breast cancer.
description: EXCLI Journal;Vol. 19. 2020, pp.1211-1226
MAPSS, a Multi-Aspect Partner and Service Selection Method
Creators: name: Paszkiewicz, Zbigniew
name: Picard, Willy
Publisher: name: arXiv
Year: 2011
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: In Service-Oriented Virtual Organization Breeding Environments (SOVOBEs), services performed by people, organizations and information systems are composed in potentially complex business processes performed by a set of partners. In a SOVOBE, the success of a virtual organization depends largely on the partner and service selection process, which determines the composition of services performed by the VO partners. In this paper requirements for a partner and service selection method for SOVOBEs are defined and a novel Multi-Aspect Partner and Service Selection method, MAPSS, is presented. The MAPSS method allows a VO planner to select appropriate services and partners based on their competences and their relations with other services/partners. The MAPSS method relies on a genetic algorithm to select the most appropriate set of partners and services.
description: 10 pages, 1 figure
Evaporating Very Small Grains as tracers of the UV radiation field in Photo-dissociation Regions
Creators: name: Pilleri, P.
name: Montillaud, J.
name: Berné, O.
name: Joblin, C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Context. In photo-dissociation regions (PDRs), Polycyclic Aromatic Hydrocarbons (PAHs) could be produced by evaporation of Very Small Grains (VSGs) by the impinging UV radiation field from a nearby star. Aims. We investigate quantitatively the transition zone between evaporating Very Small Grains (eVSGs) and PAHs in several PDRs. Methods. We study the relative contribution of PAHs and eVSGs to the mid-IR emission in a wide range of excitation conditions. We fit the observed mid-IR emission of PDRs by using a set of template band emission spectra of PAHs, eVSGs and gas lines. The fitting tool PAHTAT (PAH Toulouse Astronomical Templates) is made available to the community as an IDL routine. From the results of the fit, we derive the fraction of carbon f_eVSG locked in eVSGs and compare it to the intensity of the local UV radiation field. Results. We show a clear decrease of f_eVSG with increasing intensity of the local UV radiation field, which supports the scenario of photo-destruction of eVSGs. Conversely, this dependence can be used to quantify the intensity of the UV radiation field for different PDRs, including non resolved ones. Conclusions. PAHTAT can be used to trace the intensity of the local UV radiation field in regions where eVSGs evaporate, which correspond to relatively dense (nH = [100, 10^5 ] cm-3) and UV irradiated PDRs (G0 = [100, 5x10^4]) where H2 emits in rotational lines.
description: 13 pages, 11 figures. Accepted for publication in A&A. Typos corrected
Experimental Investigation of In Situ Combustion for Heavy Oils at Low Air Flux
Creators: name: Alamatsaz, Alireza
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Engineering--Petroleum
subject: In Situ Combustion
subject: Enhanced Oil Recovery
subject: air injection
subject: conical combustion cell
subject: Heavy Oil
subject: Low air flux
subject: Alamatsaz

description: In order to conduct a successful in situ combustion oil recovery project, sustained propagation of the combustion front within the reservoirs is a must. Sufficient air must be supplied to maintain the propagating combustion front in the carbon oxide forming mode otherwise unfavorable low temperature oxidation reactions will consume oxygen and not mobilize oil. When this happens, the combustion process is deemed to be exhausted. Quantification of the minimum air flux required for sustaining combustion zone propagation is needed to properly match the capacity of the air injection facility to the volume of reservoir which is to be swept by the thermal zone. One-dimensional combustion tubes are conventionally used to obtain important combustion parameters required for designing an air injection project. Due to the high heat capacity of laboratory equipment designed for elevated temperature and pressure operation, oxygen addition reactions are promoted by the heat transfer through the core holder walls when the laboratory tests are performed at low air injection rates. Therefore, when operated at elevated pressures, the combustion tubes are unable to operate at the low air fluxes required to establish the minimum possible air injection flux while maintaining the combustion reactions in an effective mode. In an attempt to address this issue, a state of the art combustion cell was conceived and utilized as a way of addressing the above mentioned constraints associated with high pressure one-dimensional combustion tubes. The new design enables continuous air flux reductions without having to adjust the air injection rate and as such allows for determination of the minimum flux for specific oils under conditions which are representative of a field scale operation. This research proves that experiments involving core from a typical Athabasca Oil Sands reservoir showed air injection processes, when operated at favorable conditions have the ability to propagate through the heavy oil reservoirs at high temperatures and at injection air fluxes (based on the air injection rate and area at the downstream front location) of under 1 sm3/m2•h. This thesis presents a new approach to studying in situ combustion processes. It describes the nature of the combustion zone under a variety of conditions and air fluxes approaching those experienced in field projects and provides important information on the nature of reactions and the physics of the process which must be considered when attempting to predict combustion front exhaustion using a numerical simulator. It also gives insight into the limitations in laboratory investigations of in situ combustion as well as the expected behavior of field applications of the in situ combustion process.
Reducing water consumption for residential turfgrass with adaptive irrigation controllers
Creators: name: Fazackerley, Scott Ronald
Publisher: name: University of British Columbia
Year: 2010

description: It has been estimated that 50-75% of residential water use is for irrigation. Current domestic systems are poor at adapting irrigation to meet demand, primarily due to incomplete information for system operators who rely either on visual inspection or periodic irrigation programs. This results in over-watering and fertilizer and soil leaching. This thesis describes a complete wireless sensor and irrigation control system that reduces water consumption for residential turfgrass irrigation. Presented is a proof-of-concept system that demonstrates potential benefits. The approach couples easy-to-deploy wireless soil moisture sensor nodes with an adaptive irrigation controller that waters to meet demand without user input. Watering events are dynamically scheduled in response to changes in soil water and adapt to unplanned additions and variable water flow. The adaptive irrigation controller was compared against a standard irrigation control program. Experimental results demonstrate significant water savings over using a preset watering program. Adaptive watering amounts are compared against actual crop water demand and found to meet the needs of the turfgrass without over-watering. The result is a system that requires less user intervention, lowers water consumption, and adapts to changing climatic conditions while maintaining a healthy turfgrass.
The DEEP3 Galaxy Redshift Survey: The Impact of Environment on the Size Evolution of Massive Early-type Galaxies at Intermediate Redshift
Creators: name: Cooper, Michael C.
name: Griffith, Roger L.
name: Newman, Jeffrey A.
name: Coil, Alison L.
name: Davis, Marc
name: Dutton, Aaron A.
name: Faber, S. M.
name: Guhathakurta, Puragra
name: Koo, David C.
name: Lotz, Jennifer M.
name: Weiner, Benjamin J.
name: Willmer, Christopher N. A.
name: Yan, Renbin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using data drawn from the DEEP2 and DEEP3 Galaxy Redshift Surveys, we investigate the relationship between the environment and the structure of galaxies residing on the red sequence at intermediate redshift. Within the massive (10 < log(M*/Msun) < 11) early-type population at 0.4 < z <1.2, we find a significant correlation between local galaxy overdensity (or environment) and galaxy size, such that early-type systems in higher-density regions tend to have larger effective radii (by ~0.5 kpc or 25% larger) than their counterparts of equal stellar mass and Sersic index in lower-density environments. This observed size-density relation is consistent with a model of galaxy formation in which the evolution of early-type systems at z < 2 is accelerated in high-density environments such as groups and clusters and in which dry, minor mergers (versus mechanisms such as quasar feedback) play a central role in the structural evolution of the massive, early-type galaxy population.
description: 11 pages, 5 figures, 2 tables; resubmitted to MNRAS after addressing referee's comments (originally submitted to journal on August 16, 2011)
The association of a genetic variant in CDKN2A/B gene and the risk of colorectal cancer
Creators: name: Rahmani, Farzad
name: Avan, Amir
name: Amerizadeh, Forouzan
name: Ferns, Gordon A.
name: Talebian, Sahar
name: Shahidsales, Soodabeh
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2020
Subjects: subject: Colorectal cancer
subject: CDKN2A/B
subject: Polymorphism
subject: 610

description: Colorectal cancer is among the most aggressive tumors, and its development involves an interplay between various genetic and environmental familial risk factors. Several genetic polymorphisms have been reported to be associated with colorectal cancer in recent studies. In this current study, we aimed to evaluate the possible relationship between a CDKN2A/B, single nucleotide polymorphisms (SNP) (rs10811661), with the risk of colorectal cancer. A total of 541 individuals with, or without cancer were recruited. DNA was extracted, and genotyped using a Taq-Man based real‐time PCR method. The rs10811661 SNP was associated with an increased risk of colorectal cancer (additive model: OR=3.46, CI= 1.79-6.69, p<0.0001 and recessive model: 5.72, CI= 3.12-10.49, p<0.0001). The distribution of minor alleles in the total population for homozygote allele was 9.2 %, while this was 20.1 % for heterozygotes. In summary, our findings indicate that the rs10811661 polymorphism of the CDKN2A/B gene was strongly related to the occurrence of colorectal cancer suggesting its potential role as a prognostic biomarker for the management of colorectal cancer.
description: EXCLI Journal;Vol. 19. 2020, pp.1316-1321
Schur-positivity of differences of augmented staircase diagrams
Creators: name: Morin, Ma
Publisher: name: University of British Columbia
Year: 2010

description: The Schur functions {s_lambda} and ubiquitous Littlewood-Richardson coefficients are instrumental in describing representation theory, symmetric functions,and even certain areas of algebraic geometry. Determining when two skew diagrams D₁, D₂ have the same skew Schur function or determining when the difference of two such skew Schur functions SD₁ - SD₂ is Schur-positive reveals information about the structures corresponding to these functions. By defining a set of staircase diagrams that we can augment with other (skew) diagrams, we discover collections of skew diagrams for which the question of Schur-positivity among each difference can be resolved. Furthermore, for certain Schur-positive differences we give explicit formulas for computing the coefficients of the Schur functions in the difference. We extend from simple staircases to fat staircases, and carry on to diagrams called sums of fat staircases. These sums of fat staircases can also be augmented with other (skew) diagrams to obtain many instances of Schur positivity. We note that several of our Schur-positive differences become equalities of skew Schur functions when the number of variables is reduced. Finally, we give a factoring identity which allows one to obtain many of the non-trivial finite-variable equalities of skew Schur functions.
Measurement of the effects of rough surfaces on Lamb waves propagation
Creators: name: Leduc, Damien
name: Morvan, Bruno
name: Pareige, Pascal
name: Izbicki, Jean-Louis
Publisher: name: arXiv
Year: 2023
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: This work deals with the sensitivity to the plate roughness of Lamb waves. An experimental study is performed involving an air-coupling transducer system. Signal processing allows us to extract the Lamb waves characteristics: phase velocity and attenuation. Plate surface topographies are obtained by means of an optical surface profiler. The acoustic characteristics and the surface topographies are finally linked.
Hot-wire Chemical Vapour Deposition Chemistry and Kinetics of New Precursors in the Gas Phase and on the Wire Surface
Creators: name: Badran, Ismail
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Chemistry--Physical
subject: Hot-Wire Chemical vapour deposition
subject: Reaction Mechanism
subject: Reaction Kinetics
subject: Filament Aging

description: Due to its advantages over conventional methods, the newly-developed hot-wire chemical vapour deposition (HWCVD) has placed itself as one of the leading technologies to produce high-quality silicon carbide (SiC) thin films. This research is geared towards investigating two new HWCVD precursors: 1-methyl-silacyclobutane (MSCB) and 1.3- disilacyclobutane (DSCB). Full reaction mechanisms on the hot wire and in the gas phase were proposed. The mechanisms were constructed by probing the reaction products by laser ionization sources coupled to a time-of-flight mass spectrometer (TOF MS), followed by experiments using isotope labeling and chemical trapping. The mechanisms were verified using high-level ab initio theoretical calculations. Both the primary decomposition of MSCB and DSCB were found to be catalyzed by the hot wire. The secondary gas-phase reactions of MSCB, studied under practical HWCVD pressure of 0.12-0.48 Torr, consisted of short free-radical chain reactions and silene cycloaddition. The primary decomposition of DSCB was ruled by H2 elimination from Si forming a cyclic silylene (disilacyclobutylidene). This reactive intermediate, which has never been reported before, was successfully isolated in the HWCVD reactor using trimethylsilane. The secondary gas-phase reactions of DSCB were dominated by the silylene insertion into the Si-H bond of the parent molecule. The theoretical calculations performed in this work have agreed well with the experimental study. In addition, they revealed a new and alternative pathway from the stepwise cycloreversion of MSCB and DSCB to form relatively stable open-chain olefins. Furthermore, a new symmetry allowed π2s+ π2a asynchronous transition state was discovered in addition to the known symmetry forbidden π2s+ π2s one. The proposed mechanisms were used for a kinetic study aimed to determine the rate constants and the activation energies for the main decomposition reaction pathways. The study shapes a new methodology to study the kinetics of the complex reactions involved in the HWCVD reactor. The rate constants for the main reaction pathways of the two molecules and the corresponding activation energies have shown that both MSCB and DSCB reactions were catalyzed by the hot wire under a reactor pressure of 12 Torr. In addition, the dependence of the rate constants on pressure was linear in the 5-40 Torr region and no fall-off region was observed. The filament aging of tungsten and tantalum with DSCB was systematically studied in the temperature range of 1200-2400 °C. W was found to be more prone to aging than Ta. Meanwhile, crystalline 3C-SiC was formed at low filament temperatures ≤1300 °C. As the temperature increased, SiC was replaced by carbides (W2C, TaC). This transformation was driven by the nature of the DSCB precursor.
A Brief Description of Company Directors from a Historical and the Legal Perspective of Bangladesh
Creators: name: Mashrur Rahman, Mahin
Publisher: name: NILS Bangladesh
Year: 2021

description: We take some notions for granted, and the concept of corporate directors may be one of them. Many of them are despised by their employees; others are even considered tyrants; yet, there are certain examples that may be dubbed "World's Best Boss." However, in a serious tone, the author of the paper provided us with a brief historical background of the concept, its growth, and how it works in Bangladesh's current legal and corporate system.  
https://nilsbangladesh.org/a-brief-description-of-company-directors-from-a-historical-and-the-legal-perspective-of-bangladesh/
Type N Spacetimes as Solutions of Extended New Massive Gravity
Creators: name: Ahmedov, Haji
name: Aliev, Alikram N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study algebraic type N spacetimes in the extended new massive gravity (NMG), considering both the Born-Infeld model (BI-NMG) and the model of NMG with any finite order curvature corrections. We show that for these spacetimes, the field equations of BI-NMG take the form of the massive (tensorial) Klein-Gordon type equation, just as it happens for ordinary NMG. This fact enables us to obtain the type N solution to BI-NMG, utilizing the general type N solution of NMG, earlier found in our work. We also obtain type N solutions to NMG with all finite order curvature corrections and show that, in contrast to BI-NMG, this model admits the critical point solutions, which are counterparts of "logarithmic" AdS pp-waves solutions of NMG.
description: 6 pages, twocolumn REVTeX
Malliavin calculus for backward stochastic differential equations and application to numerical solutions
Creators: name: Hu, Yaozhong
name: Nualart, David
name: Song, Xiaoming
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper we study backward stochastic differential equations with general terminal value and general random generator. In particular, we do not require the terminal value be given by a forward diffusion equation. The randomness of the generator does not need to be from a forward equation, either. Motivated from applications to numerical simulations, first we obtain the $L^p$-Hölder continuity of the solution. Then we construct several numerical approximation schemes for backward stochastic differential equations and obtain the rate of convergence of the schemes based on the obtained $L^p$-Hölder continuity results. The main tool is the Malliavin calculus.
description: Published in at http://dx.doi.org/10.1214/11-AAP762 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Power Spectrum Analysis of LMSU (Lomonosov Moscow State University) Nuclear Decay-Rate Data: Further Indication of r-Mode Oscillations in an Inner Solar Tachocline
Creators: name: Sturrock, Peter A.
name: Parkhomov, Alexander G.
name: Fischbach, Ephraim
name: Jenkins, Jere H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: This article presents a power-spectrum analysis of 2,350 measurements of the $^{90}$Sr/$^{90}$Y decay process acquired over the interval 4 August 2002 to 6 February 2009 at the Lomonosov Moscow State University (LMSU). As we have found for other long sequences of decay measurements, the power spectrum is dominated by a very strong annual oscillation. However, we also find a set of low-frequency peaks, ranging from 0.26 year$^{-1}$ to 3.98 year$^{-1}$, which are very similar to an array of peaks in a power spectrum formed from Mt Wilson solar diameter measurements. The Mt Wilson measurements have been interpreted in terms of r-mode oscillations in a region where the sidereal rotation frequency is 12.08 year$^{-1}$. We find that the LMSU measurements may also be attributed to the same type of r-mode oscillations in a solar region with the same sidereal rotation frequency. We propose that these oscillations occur in an inner tachocline that separates the radiative zone from a more slowly rotating solar core.
description: 5 pages, 8 figures. v2 corrects three typographical errors on page 3, including the missing list of r-modes in sec. 3, para 2