cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Extended Black Hole Solutions in Rastall Theory of Gravity
Creators: name: Sharif, M.
name: Sallah, Malick
Publisher: name: arXiv
Year: 2025
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We utilize the gravitational decoupling via the extended geometric deformation to extend the Schwarzschild vacuum solution to new black holes in Rastall theory. By employing linear transformations that deform both the temporal and radial coefficients of the metric, the field equations with a dual matter source are successfully decoupled into two sets. The first of these sets is described by the metric for the vacuum Schwarzschild spacetime, while the second set corresponds to the added extra source. Three extended solutions are obtained using two restrictions on the metric potentials and extra source, respectively. For selected values of the Rastall and decoupling parameters, we study the impact of the fluctuation of these parameters on the obtained models. We also investigate the asymptotic flatness of the resulting spacetimes by analysis of the metric coefficients. Finally, the nature of the additional source is explored for each model, via analysis of the energy conditions. It is found among other results that none of the obtained models satisfy the energy conditions, while only the model corresponding to the barotropic equation of state mimics an asymptotically flat spacetime.
description: 23 pages, 9 figures
Additional file 2: of The effect of Wolbachia on gene expression in Drosophila paulistorum and its implications for symbiont-induced host speciation
Creators: name: BaiĂŁo, Guilherme
name: Schneider, Daniela
name: Miller, Wolfgang
name: Klasson, Lisa
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Computational Biology

description: Additional figures. Figure S1. Overlap in Drosophila gene content between the transcriptomes of the three semispecies. Figure S2. Principal component analysis (a) and heatmap (b) of expression data of the AM semispecies. Figure S3. Principal component analysis (a) and heatmap (b) of expression data of the CA semispecies. Figure S4. Number of genes differentially expressed in one or multiple conditions of the AM semispecies. Figure S5. Number of genes differentially expressed in one or multiple conditions of the CA semispecies. Figure S6. First and second principal components in the PCA of female abdomen samples of all semispecies. Figure S7. Second and third principal components in the PCA of head samples of all semispecies mapped to the OR transcriptome. Figure S8. Principal component analysis of GFR head samples of all semispecies mapped to the OR transcriptome based on the same genes used in the WT head PCAs (Figs. 5c, 2d). Figure S9. Principal component analysis of abdomen samples of all semispecies mapped to the OR transcriptome. (PDF 2115 kb)
The Chromospheric Response to the Sunquake generated by the X9.3 Flare of NOAA 12673
Creators: name: Quinn, Sean
name: Reid, Aaron
name: Mathioudakis, Mihalis
name: Nelson, Christopher
name: Prasad, S. Krishna
name: Zharkov, Sergei
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Active region NOAA 12673 was extremely volatile in 2017 September, producing many solar flares, including the largest of solar cycle 24, an X9.3 flare of 06 September 2017. It has been reported that this flare produced a number of sunquakes along the flare ribbon (Sharykin & Kosovichev 2018; Zhao & Chen 2018). We have used co-temporal and co-spatial Helioseismic and Magnetic Imager (HMI) line-of-sight (LOS) and Swedish 1-m Solar Telescope observations to show evidence of the chromospheric response to these sunquakes. Analysis of the Ca II 8542 Å\space line profiles of the wavefronts revealed that the crests produced a strong blue asymmetry, whereas the troughs produced at most a very slight red asymmetry. We used the combined HMI, SST datasets to create time-distance diagrams and derive the apparent transverse velocity and acceleration of the response. These velocities ranged from 4.5 km s$^{-1}$ to 29.5 km s$^{-1}$ with a constant acceleration of 8.6 x 10$^{-3}$ km s$^{-2}$. We employed NICOLE inversions, in addition to the Center-of-Gravity (COG) method to derive LOS velocities ranging 2.4 km s$^{-1}$ to 3.2 km s$^{-1}$. Both techniques show that the crests are created by upflows. We believe that this is the first chromospheric signature of a flare induced sunquake.
description: 11 Pages, 6 Figures
title: Relationship of resilience with mental health and suicidal ideation among left-behind children: a socioecological framework
Creators: name: Mak, Leona Y
Publisher: name: Griffith University
Year: 2022
Subjects: subject: left-behind children
subject: resilience
subject: mental health
subject: suicidal ideation

description: Globalisation in the twentieth century signified a reduction in agricultural buoyancy and a greater demand for industrialisation. It was the catalyst for a record-breaking economically driven mass rural-to-urban migration in developing countries. As working adults migrated from rural regions to larger cities for better lifestyles and employment opportunities, some children became separated from their parents. The term ‘left-behind children’ (LBC) describes children who have been ‘left behind’ in their hometown – under the care of other family members or institutions either by one or both parents who have migrated to work elsewhere. The plight of the hundreds of millions of children from all areas of the world who have been impacted by parental migration has rapidly attracted mass media, academic and political discussions over the recent decades. A considerable majority of the current literature suggests that left-behind children suffer more psychological problems such as depression, anxiety, emotional and behavioural problems, health-risk behaviours and suicidal ideation compared to children who have never experienced parental migration. These mental health issues are also likely to perpetuate into adulthood. Nevertheless, a notable fact is that not all left-behind children are negatively impacted by parental migration. It is proposed that resilience is a crucial determinant for children to reach their full potential despite parental absence. The lack of exploration of key variables that can mitigate the effects of parental migration based on a socioecological resilience perspective created a gap in previous literature. Hence there are two objectives of this thesis. The first is to compare psychological outcomes in left-behind children and control children. Second, from a socioecological resilience framework identify the risk factors and protective factors that are critical in differentiating left-behind children whose psychological development has been detrimentally impacted by parental migration to left-behind children who have not suffered despite parental migration.
Direct Hopf Bifurcation in Parametric Resonance of Hybridized Waves
Creators: name: Elmer, Franz-Josef
Publisher: name: arXiv
Year: 1996
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study parametric resonance of interacting waves having the same wave vector and frequency. In addition to the well-known period-doubling instability we show that under certain conditions the instability is caused by a Hopf bifurcation leading to quasiperiodic traveling waves. It occurs, for example, if the group velocities of both waves have different signs and the damping is weak. The dynamics above the threshold is briefly discussed. Examples concerning ferromagnetic spin waves and surface waves of ferro fluids are discussed.
description: Appears in Phys. Rev. Lett., RevTeX file and three postscript figures. Packaged using the 'uufiles' utility, 33 kB
title: Bromus erectus
title: Aufrechte Trespe (Bromus erectus)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 1 Bild der Aufrechten Trespe.
Detecting knot invertibility
Creators: name: Kuperberg, Greg
Publisher: name: arXiv
Year: 1997
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We discuss the consequences of the possibility that Vassiliev invariants do not detect knot invertibility as well as the fact that quantum Lie group invariants are known not to do so. On the other hand, finite group invariants, such as the set of homomorphisms from the knot group to M_11, can detect knot invertibility. For many natural classes of knot invariants, including Vassiliev invariants and quantum Lie group invariants, we can conclude that the invariants either distinguish all oriented knots, or there exist prime, unoriented knots which they do not distinguish.
description: 8 pages, 10 figures included
title: Bromus arvensis
title: Acker-Trespe (Bromus arvensis)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 2 Bilder der Acker-Trespe.
title: Bromus ramosus
title: Wald-Trespe (Bromus ramosus)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 2 Bilder der Wald-Trespe.
Modelling mechanical percolation in graphene-reinforced elastomer nanocomposites
Creators: name: Liu, Mufeng
name: Kinloch, Ian A.
name: Young, Robert J.
name: Papageorgiou, Dimitrios G.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Graphene is considered an ideal filler for the production of multifunctional nanocomposites; as a result, considerable efforts have been focused on the evaluation and modeling of its reinforcement characteristics. In this work, we modelled successfully the mechanical percolation phenomenon, observed on a thermoplastic elastomer (TPE) reinforced by graphene nanoplatelets (GNPs), by designing a new set of equations for filler contents below and above the percolation threshold volume fraction (Vp). The proposed micromechanical model is based on a combination of the well-established shear-lag theory and the rule-of-mixtures and was introduced to analyse the different stages and mechanisms of mechanical reinforcement. It was found that when the GNPs content is below Vp, reinforcement originates from the inherent ability of individual GNPs flakes to transfer stress efficiently. Furthermore, at higher filler contents and above Vp, the nanocomposite materials displayed accelerated stiffening due to the reduction of the distance between adjacent flakes. The model derived herein, was consistent with the experimental data and the reasons why the superlative properties of graphene cannot be fully utilized in this type of composites, were discussed in depth.
description: 29 pages, 12 figures
title: Bromus spec.
title: Trespe (Bromus spec.)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 1 Bild der Trespe.
Dual-control based approach to batch process operation under uncertainty based on optimality-conditions parameterization
Creators: name: Paulen, Radoslav
name: Fikar, Miroslav
Publisher: name: arXiv
Year: 2019
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: This paper presents a scheme for dual robust control of batch processes under parametric uncertainty. The dual-control paradigm arises in the context of adaptive control. A trade-off should be decided between the control actions that (robustly) optimize the plant performance and between those that excite the plant such that unknown plant model parameters can be learned precisely enough to increase the robust performance of the plant. Some recently proposed approaches can be used to tackle this problem, however, this will be done at the price of conservativeness or significant computational burden. In order to increase computational efficiency, we propose a scheme that uses parameterized conditions of optimality in the adaptive predictive-control fashion. The dual features of the controller are incorporated through scenario-based (multi-stage) approach, which allows for modeling of the adaptive robust decision problem and for projecting this decision into predictions of the controller. The proposed approach is illustrated on a case study from batch membrane filtration.
title: Bromus sterilis
title: Taube Trespe (Bromus sterilis)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 2 Bilder der Tauben Trespe.
Optimizing vaccine distribution networks in low and middle-income countries
Creators: name: Yang, Yuwen
name: Bidkhori, Hoda
name: Rajgopal, Jayant
Publisher: name: arXiv
Year: 2019
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Vaccination has been proven to be the most effective method to prevent infectious diseases. However, there are still millions of children in low and middle-income countries who are not covered by routine vaccines and remain at risk. The World Health Organization - Expanded Programme on Immunization (WHO-EPI) was designed to provide universal childhood vaccine access for children across the world and in this work, we address the design of the distribution network for WHO-EPI vaccines. In particular, we formulate the network design problem as a mixed integer program (MIP) and present a new algorithm for typical problems that are too large to be solved using commercial MIP software. We test the algorithm using data derived from four different countries in sub-Saharan Africa and show that the algorithm is able to obtain high-quality solutions for even the largest problems within a few minutes.
Undergraduate specialization in painting in universities in South-South Nigeria, at the close of the last millennium
Creators: name: IMONIKEBE, MANASSEH EMAMOKE
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2016
Subjects: Undergraduate specialization, painting, South-South Nigeria, last millennium, survey and Universities

description: The study investigated undergraduate specialization in painting in universities in South-South Nigeria, at the close of the last millennium. There are eight public Universities in the South-South Geo-Political Zone of Nigeria. Although a number of factors influence undergraduate specialization in various units in Fine and Applied Arts in tertiary institutions, this study focused on the situation in public universities in the South-South Geo-Political Zone of Nigeria at the close of the last millennium. The problem of this study is: What was the situation in the area of painting at the close of the last millennium in universities in South-South Nigeria? Was undergraduate specialization in painting in the selected universities low or high? The design of the study is descriptive survey while the major instrument used was interview. The following finding was made: that specialization in painting in universities in South-South Nigeria, at the close of the last millennium was lower than what it is in this millennium. In other words more students are specializing in painting since the wake of this millennium in universities in South-South Nigeria.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 3, N. 1 (2016)
Establishment of Structural and Functional Metaphorical Responses in 4th and 5th Grade Students as a Function of Multiple Exemplar Instruction Across Reader and Writer Functions
Creators: Wiehe, Petra
Publisher: name: Columbia University
Year: 2014
Subjects: Education

description: A non-concurrent multiple probe design across dyads was used to test the effects of multiple exemplar instruction across reader and writer responses on the emergence of metaphors in 4th and 5th grade students. Two experiments were conducted. Experiment 1 rotated responding across reader and writer responses to train the structure of metaphors while probing for the emergence of metaphor function on a listener. None of the participants in Experiment 1 were able to produce metaphors according to a structural algorithm prior to the start of the study. Participants were paired into writer and peer reader groups (a total of 3 pairs) and a peer yoked-contingency game board was employed as a motivating operation in which the participants competed against the experimenter to reach the top of the game board in order to earn a chosen reinforcer. Participants moved up on the game board if the writer produced a metaphor as was determined by an algorithm used by the peer reader. Experiment 2 rotated responding across reader and writer instructional trials to train the function of metaphors. The participants in Experiment 2 were able to produce metaphors at the start of the study however the metaphors did not function to evoke a target emotion from a reader. Results for Experiment 1 showed that Multiple Exemplar Instruction across reader and writer responses to teach the structure of metaphors was effective but did not result in the emergence of an emotional function on a listener. Experiment 2 showed that Multiple Exemplar Instruction across the emotional function of reader and writer responses resulted in the emergence of an emotional function on a listener during post-probe conditions.
The influence of a family’s cultural capital on the formation of the educational and occupational expectations of native and immigrant primary school students
Creators: name: KOUSTOURAKIS, GERASIMOS
name: SPILIOPOULOU, GEORGIA
name: ASIMAKI, ANNA
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2016
Subjects: Cultural capital, educational expectations, occupational expectations, primary school, natives, immigrants

description: The present paper, which uses the concept of ‘cultural capital’ from the theory of Pierre Bourdieu, aims on the one hand to investigate the similarities and differences between the cultural capital of the families of native and immigrant students of primary schools in Greece, and on the other hand to correlate it with their expectations for their educational and occupational future. The research was carried out during the 2013-2014 school year with the use of a questionnaire. 408 students (358 natives and 50 immigrants) who attended sixth grade of state primary schools in the city of Patras participated. The results of this study showed that there were more differences than similarities between the cultural capital of the families in these two categories of research subjects and they focus on their cultural activities, as well as on cultural goods which exist in their house. It also emerged that the different forms of cultural capital of native and immigrant students correlate (positively or negatively) with their expectations for their educational and occupational future.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 3, N. 1 (2016)
Additional file 1: of Opportunities and challenges of active immunotherapy in dogs with B-cell lymphoma: a 5-year experience in two veterinary oncology centers
Creators: name: Marconato, Laura
name: Aresu, Luca
name: Stefanello, Damiano
name: Comazzi, Stefano
name: Martini, Valeria
name: Ferrari, Roberta
name: Riondato, Fulvio
name: Rouquet, Nicole
name: Frayssinet, Patrick
name: Sabattini, Silvia
Publisher: name: figshare
Year: 2019
Subjects: subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer
subject: Hematology

description: Supplementary data. (DOCX 105 kb)
Linear-Time Algorithms for Computing Maximum-Density Sequence Segments with Bioinformatics Applications
Creators: name: Goldwasser, Michael H.
name: Kao, Ming-Yang
name: Lu, Hsueh-I
Publisher: name: arXiv
Year: 2002
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences
subject: F.2.2; J.3; G.2

description: We study an abstract optimization problem arising from biomolecular sequence analysis. For a sequence A of pairs (a_i,w_i) for i = 1,..,n and w_i>0, a segment A(i,j) is a consecutive subsequence of A starting with index i and ending with index j. The width of A(i,j) is w(i,j) = sum_{i <= k <= j} w_k, and the density is (sum_{i<= k <= j} a_k)/ w(i,j). The maximum-density segment problem takes A and two values L and U as input and asks for a segment of A with the largest possible density among those of width at least L and at most U. When U is unbounded, we provide a relatively simple, O(n)-time algorithm, improving upon the O(n \log L)-time algorithm by Lin, Jiang and Chao. When both L and U are specified, there are no previous nontrivial results. We solve the problem in O(n) time if w_i=1 for all i, and more generally in O(n+n\log(U-L+1)) time when w_i>=1 for all i.
description: 23 pages, 13 figures. A significant portion of these results appeared under the title, "Fast Algorithms for Finding Maximum-Density Segments of a Sequence with Applications to Bioinformatics," in Proceedings of the Second Workshop on Algorithms in Bioinformatics (WABI), volume 2452 of Lecture Notes in Computer Science (Springer-Verlag, Berlin), R. Guigo and D. Gusfield editors, 2002, pp. 157--171
Shearlet-Based Descriptors and Deep Learning Approaches for Medical Image Classification
Creators: name: Al-Insaif, Sadiq
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2021
Subjects: Texture Descriptors
Shearlets
MRI Images
Deep Learning
SVM Classiﬁcation
Decision tree
Histology

description: In this Ph.D. thesis, we develop eﬀective techniques for medical image classiﬁcation, particularly, for histopathological and magnetic resonance images (MRI). Our techniques are capable of handling the high variability in the content of such images. Handcrafted techniques based on texture analysis are used for the classiﬁcation task. We also use deep learning models but training such models from scratch can be a challenging process, instead, we employ deep features and transfer learning. First, we propose a combined texture-based feature representation that is computed in the complex shearlet domain for histopathological image classiﬁcation. With complex coeﬃcients, we examine both the magnitude and relative phase of shearlets to form the feature space. Our proposed techniques are successful for histopathological image classiﬁcation. Furthermore, we investigate their ability to generalize to MRI datasets that present an additional challenge, namely high dimensionality. An MRI sample consists of a large number of slices. Our proposed shearlet-based feature representation for histopathological images cannot be used without adjustment. Therefore, we consider the 3D shearlet transform given the volumetric nature of MRI data. An advantage of the 3D shearlet transform is that it takes into consideration adjacent slices of MRI data. Secondly, we study the classiﬁcation of histopathological images using pre-trained deep learning models. A pre-trained deep learning model can act as a starting point for datasets with a limited number of samples. Therefore, we used various models either as unsupervised feature extractors, or weight initializers to classify histopathological images. When it comes to MRI samples, ﬁne-tuning a deep learning model is not straightforward. Pre-trained models are trained on RGB images which have a channel size of 3, but an MRI sample has a larger number of slices. Fine-tuning a convolutional neural network (CNN) requires adjusting a model to work with MRI data. We ﬁne-tune pre-trained models and then use them as feature extractors. Thereafter, we demonstrate the eﬀectiveness of ﬁne-tuned deep features with classical machine learning (ML) classiﬁers, namely a support vector machine and a decision tree bagger. Furthermore, instead of using a classical ML classiﬁer for the MRI sample, we built a custom CNN that takes both the 3D shearlet descriptors and deep features as an input. This custom network processes our feature representation end-to-end and then classiﬁes an MRI sample. Our custom CNN is more eﬀective in comparison to a classical ML on a hidden MRI dataset. It is an indication that our CNN model is less susceptible to over-ﬁtting.
Broadband quadrature-squeezed vacuum and nonclassical photon number correlations from a nanophotonic device
Creators: name: Vaidya, V. D.
name: Morrison, B.
name: Helt, L. G.
name: Shahrokhshahi, R.
name: Mahler, D. H.
name: Collins, M. J.
name: Tan, K.
name: Lavoie, J.
name: Repingon, A.
name: Menotti, M.
name: Quesada, N.
name: Pooser, R. C.
name: Lita, A. E.
name: Gerrits, T.
name: Nam, S. W.
name: Vernon, Z.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report demonstrations of both quadrature squeezed vacuum and photon number difference squeezing generated in an integrated nanophotonic device. Squeezed light is generated via strongly driven spontaneous four-wave mixing below threshold in silicon nitride microring resonators. The generated light is characterized with both homodyne detection and direct measurements of photon statistics using photon number-resolving transition edge sensors. We measure $1.0(1)$~dB of broadband quadrature squeezing (${\sim}4$~dB inferred on-chip) and $1.5(3)$~dB of photon number difference squeezing (${\sim}7$~dB inferred on-chip). Nearly-single temporal mode operation is achieved, with measured raw unheralded second-order correlations $g^{(2)}$ as high as $1.95(1)$. Multi-photon events of over 10 photons are directly detected with rates exceeding any previous quantum optical demonstration using integrated nanophotonics. These results will have an enabling impact on scaling continuous variable quantum technology.
description: Minor revisions, and Fig. 5 corrected; Now published in Science Advances
MEASUREMENTS OF RELEVANT PARAMETERS IN THE FORMATION OF CLATHRATE HYDRATES BY A NOVEL EXPERIMENTAL APPARATUS
Creators: name: Arca, Simone
name: Di Profio, Pietro
name: Germani, Raimondo
name: Savelli, Gianfranco
Publisher: name: The University of British Columbia
Year: 2008

description: Studying clathrate hydrates is, ideally, a simple task: one just have to keep water under a gas pressure. However, when trying to collect measurements in an accurate and repeatable way, things mess up. When, in particular, kinetic characterizations are required, not only pressure and temperature have to be measured: also particular parameters such as gas evolved/trapped during time, heat released/adsorbed during time, critical phenomena related to additive addition, etc, should be collected in a finer way. In the last years a growing interest has been devoted to investigations on the effects of a wide range of compounds capable to affect the thermodynamics and, in particular, kinetics of clathrate hydrate formation. The study of the effects of these compounds, called conditioners, requires an improvement of the performances of usual lab facilities by introducing a new strategy for the measurement of further characterizing parameters. Presently no standardization of the apparatus designed for clathrate hydrate studies exists, nor any commercial instrumentations are available. Generally, apparatus used are custom-made by the same research team according with the peculiar research requirements To do this we have designed, built, calibrated and tested a novel apparatus that, in addition to the ability of measuring usually unexplored parameters, is based on the idea of obtaining as many parameters as possible in a single formation batch. This in order to solve the problem of collecting a dataset that can be processed homogeneously, thus minimizing errors due stochastic behaviours. Using such an apparatus, several kinds of measurement are presented here, which are related directly to the clathrate hydrate investigation fields, but also more generally related to the study of equilibrium phases involving gaseous components.
Asymptotic Morphisms and Elliptic Operators over C*-algebras
Creators: name: Trout, Jody
Publisher: name: arXiv
Year: 1999
Subjects: subject: Operator Algebras (math.OA)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics

description: This paper provides an E-theoretic proof of an exact form, due to E. Troitsky, of the Mischenko-Fomenko Index Theorem for elliptic pseudodifferential operators over a unital C*-algebra. The main ingredients in the proof are the use of asymptotic morphisms of Connes and Higson, vector bundle modification, a Baum-Douglas-type group, and a KK-argument of Kasparov.
description: For journal version, see http://www.kluweronline.com/issuetoc.htm/0920-3036+18+3+1999
Temporal Modulation of Traveling Waves in the Flow Between Rotating Cylinders With Broken Azimuthal Symmetry
Creators: name: Tennakoon, Sarath G. K.
name: Andereck, C. David
name: Hegseth, John. J.
name: Riecke, Hermann
Publisher: name: arXiv
Year: 1996
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The effect of temporal modulation on traveling waves in the flows in two distinct systems of rotating cylinders, both with broken azimuthal symmetry, has been investigated. It is shown that by modulating the control parameter at twice the critical frequency one can excite phase-locked standing waves and standing-wave-like states which are not allowed when the system is rotationally symmetric. We also show how previous theoretical results can be extended to handle patterns such as these, that are periodic in two spatial direction.
description: 17 pages in LaTeX, 22 figures available as postscript files from http://www.esam.nwu.edu/riecke/lit/lit.html
Additional file 1: of Chronic obstructive pulmonary disease upper airway microbiota alpha diversity is associated with exacerbation phenotype: a case-control observational study
Creators: name: Pragman, Alexa
name: Knutson, Katherine
name: Gould, Trevor
name: Isaacson, Richard
name: Reilly, Cavan
name: Wendt, Chris
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Marine Biology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Supplementary information. (DOCX 2881 kb)
Artistic activities in school as a question and a challenge: dilemmas about the boundaries of art education
Creators: name: VAOS, ANTONIS
name: MOURIKI, ALEXANDRA
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2016
Subjects: Art education, artistic creation, education, subjective teaching, creation

description: The current state in the area of visual art creation, characterized by a continuous as well as a radical expansion of its boundaries, sets forth an issue for an analogous diversification in the art teaching field. Within this context, various questions and proposals are set forth as to the direction that a teaching intervention, able to promote and handle subjectivity, fluidity and relativity in the artistic work, may take. Should we promote a “safe” approach, should the educational condition further “loosen”, or should the cognitive field be radically transformed? These concerns constitute three essentially different viewpoints, all of which are examined in this article. Within the scope of the approach hereby adopted, a synchronization with artistic reality urges art education towards an exceptionally wide and multifaceted teaching approach, strengthening the need of children to perceive, comprehend, interpret and criticize the variety of visual forms available to them.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 3, N. 1 (2016)
Estimating Maintenance CapEx
Creators: Peddireddy, Venkat Ramana R.
Publisher: name: Columbia University
Year: 2021
Subjects: Accounting
Stocks
Finance
Capital investments
Depreciation

description: Technological obsolescence has a more profound impact on the future economic life of long-term operating assets today than it had in the past. Therefore, the periodic capacity costs required to sustain current revenues should not only include the wear and tear costs of using long-term operating assets but also the costs related to their technological obsolescence. In reality, however, firms often record depreciation and amortization (D&A) expense that do not capture the effect of technological changes, resulting in misleadingly low D&A expense and overstated earnings. In this paper, I propose a measure of maintenance capex that attempts to measure the economic capacity cost required for a firm to sustain its current level of revenue. I find that the median firm recognizes 25% lower D&A expense compared to the estimated level of maintenance capex. This results in overstatement of operating income by 7%. I show that under-depreciating firms, which report lower D&A expense than their estimated maintenance capex, experience future write-offs and negative future earnings. Moreover, under-depreciation is also associated with significantly negative future abnormal stock returns, suggesting that stock prices do not fully reflect the implications of the under-depreciation for future earnings. In sum, my measure can help financial statement users identify under-depreciating firms, anticipate negative future earnings, and adjust reported earnings for valuation purposes. Additionally, I show that the well-documented negative relationship between investment and future stock returns is partly attributable to investors’ inability to differentiate between maintenance and growth capex.
About the wave’s concept in quantum mechanics and how university student understand its aspects. Algerian students’ case
Creators: name: LADJ, RABAH
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2016
Subjects: Classical Mechanics principles, Quantum Mechanics basic principles, wave in Quantum Mechanics. Copenhagen interpretation, Everett III interpretation

description: The most important basic aspect of Quantum Mechanics description is the wave, but there are many different interpretations between different schools and scientists about the reality of this wave. Till now there are more than thirteen important schools of interpretation for the basic concepts of quantum mechanics. In the case of the wave, some interpretations consider it as a real wave, while others consider it as only a mathematics toll. Through our experience in teaching quantum theory, we conclude that teaching quantum mechanics is not only just deriving beautiful and maybe logical equations and relations related to the subject. We believe that each step of deriving those equations or relations should be followed by deep discussions of concepts and meanings. Because of the students difficulty for understand the wave concept as an example of general basic concepts of quantum mechanics. For this purpose and in order to clarify and focus on the problematic, a questionnaire sheet was presented to homogenous sample of Algerian third year physics students related to the subject. But we concluded from the results of students’ survey, that the basic concepts of quantum mechanics should have a profound educational revision.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 3, N. 1 (2016)
Self-replication and splitting of domain patterns in reaction-diffusion systems with fast inhibitor
Creators: name: Muratov, C. B.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: An asymptotic equation of motion for the pattern interface in the domain-forming reaction-diffusion systems is derived. The free boundary problem is reduced to the universal equation of non-local contour dynamics in two dimensions in the parameter region where a pattern is not far from the points of the transverse instabilities of its walls. The contour dynamics is studied numerically for the reaction-diffusion system of the FitzHugh-Nagumo type. It is shown that in the asymptotic limit the transverse instability of the localized domains leads to their splitting and formation of the multidomain pattern rather than fingering and formation of the labyrinthine pattern.
description: 9 pages (ReVTeX), 5 figures (postscript). To be published in Phys. Rev. E
NEW ASPECTS OF HYDRATE CONTROL AT NORTHERN GAS AND GAS CONDENSATE FIELDS OF NOVATEK
Creators: name: Yunosov, Rauf
name: Istomin, Vladimir
name: Gritsishin, Dmitry
name: Shevkunov, Stanislav
Publisher: name: The University of British Columbia
Year: 2008

description: A thermodynamic inhibitor - methanol is used for hydrates control both at gas-gathering pipelines and gas conditioning / treatment field plants of Novatek JSC. Due to severe climate conditions and absence of serious infrastructure high operation costs for hydrate control take place. For reducing inhibitor losses some new technological solutions were proposed including recycling and regeneration of saturated methanol. A small module for producing methanol at field conditions was designed. Technological schemes for methanol injection and recirculation are discussed. These technologies reduce methanol losses. Small methanol-producing plant at Yurkharovskoe gas-condensate field (12.5 million ton methanol per year) integrated with field gas treatment plant is presented. The technology includes producing converted gas (syngas) from natural gas, catalytic process for raw methanol synthesis and rectification of raw methanol at final stage. Some particularities of the integrated technology are as follows. Not needs for preliminary purification of required raw materials (natural gas and water). Dried natural gas after conditioning (without any traces of sulfuric compounds) and pure water from simplified water treatment block are used. Rectification of raw methanol is combined with rectification of saturated methanol from gas treatment plant. Economic estimations show that the integrated methanol-producing technology and optimization of methanol circulation in technological processes essentially reduce capital and operational costs for hydrate control at northern gas and gas-condensate fields.
Additional file 1: of Prevalence of feco-oral transmitted protozoan infections and associated factors among university students in Ethiopia: a cross-sectional study
Creators: name: Behailu Ayele
name: Ayele Geleto
name: Desalegn Ayana
name: Redi, Muhedin
Publisher: name: figshare
Year: 2019
Subjects: subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The questionnaire. The questionnaire used to assess Prevalence of feco-oral transmitted protozoan infections and associated factors among university students in Ethiopia: A Cross-Sectional Study. (DOCX 27 kb)
title: Species area-relationships and frequency - Floristical data analysis of 44 isolated woods in northwestern Germany
Creators: name: Zacharias, Dietmar
name: Brandes, Dietmar
Publisher: name: Institut für Pflanzenbiologie
Year: 1990
Subjects: subject: Frequency
subject: Northwestern Germany
subject: Rarity
subject: SLOSS effect
subject: Species-area relationship
subject: Woodland islands
subject: Woodland species
subject: 580

description: 44 isolated ancient woods (9,3-8579 ha) in southeastern Lower Saxony (northwestern Germany), where the Tertiary hilly country meets the Pleistocene plain, were investigated. Complete lists of 273 vascular plant species showing a more or less strong preference for woodlands were made for each wood including all the species of the groups Querco-Fagetea, Trifolio-Geranietea, Galio-Calystegietalia (selection of species) and Epilobietea. The majority of character species of woods show either a low or a high frequency, whereas fewer ones have medium frequencies. Most of the rarer species have their main occurrence in the larger woods. The number of species of all of the four groups increases with area of the wood and the correlation between the number of species and the log of area is related by a highly significant linear regression. Comparison of a single wood with two smaller woods of the same total area reveals that the two smaller woods on average have the greater number of wood species. Considering this and the fact that the rarer species have their main occurrence in the larger woods, when discussing questions of nature conservation a simple comparison of number of species and area is problematical.
Cognitive and space ergonomics in the schools computer laboratories
Creators: name: PAPAKITSOS, EVANGELOS C.
name: CHOROZOGLOU, GEORGIOS V.
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2016
Subjects: Cognitive ergonomics, space ergonomics, computer laboratory

description: The present article describes the features of the schools computer laboratories of the Greek primary and secondary education and the conditions that are encountered in didactics because of the arrangement of their workstations. These conditions concern the ergonomics of space regarding the equipment along with the cognitive consequences on the learning process. For dealing with the presented situation, the various modes of arrangement are compared according to the guidelines of cognitive ergonomics, accompanied by relevant suggestions that were successfully applied in school practice and can be generally useful in similar occasions.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 3, N. 1 (2016)
Centralizer construction for twisted Yangians
Creators: name: Molev, Alexander
name: Olshanski, Grigori
Publisher: name: arXiv
Year: 1997
Subjects: subject: Quantum Algebra (math.QA)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: For each of the classical Lie algebras $g(n)=o(2n+1), sp(2n), o(2n)$ of type B, C, D we consider the centralizer of the subalgebra $g(n-m)$ in the universal enveloping algebra $U(g(n))$. We show that the $n$th centralizer algebra can be naturally projected onto the $(n-1)$th one, so that one can form the projective limit of the centralizer algebras as $n\to\infty$ with $m$ fixed. The main result of the paper is a precise description of this limit (or stable) centralizer algebra, denoted by $A_m$. We explicitly construct an algebra isomorphism $A_m=Z\otimes Y_m$, where $Z$ is a commutative algebra and $Y_m$ is the so-called twisted Yangian associated to the rank $m$ classical Lie algebra of type B, C, or D. The algebra $Z$ may be viewed as the algebra of virtual Laplace operators; it is isomorphic to the algebra of polynomials with countably many indeterminates. The twisted Yangian $Y_m$ (and hence the algebra $A_m$) can be described in terms of a system of generators with quadratic and linear defining relations which are conveniently presented in R-matrix form involving the so-called reflection equation. This extends the earlier work on the type A case by the second author.
description: AMSTeX, 46 pages
Coping with cognitive errors in adults’ assumptions: an approach of transformative learning with the lens of cognitive psychotherapy
Creators: name: RIGALOU, CHRISTINA
name: VORVILAS, GEORGE
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2016
Subjects: Cognitive errors, dysfunctional assumptions, cognitive psychotherapy, transformative learning

description: According to Transformative Learning Theory, people interpret, assimilate and transform new experiences based on their socially shaped, taken-for-granted assumptions. People tend to reflect on their assumptions when they face a disorienting dilemma that makes those assumptions dysfunctional. The adult educator’s role is to guide learners to a critical re-examination of their dysfunctional assumptions in order to adopt alternative points of view that will help them cope with that disorienting dilemma. That transformative process can be facilitated when the adult educator is able to recognize and handle several cognitive errors which are included in dysfunctional assumptions. A typology of cognitive errors in adults’ reasoning can be defined with the aim of Cognitive Psychotherapy. Using that typology in a transformative learning framework is not inexpedient since both Cognitive Psychotherapy and Transformative Learning Theory share some basic premises about the transformation of adults’ feelings and understanding of the world.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 3, N. 1 (2016)
Visible narrow cusp structure in $Λ_c^+\to p K^- π^+$ enhanced by triangle singularity
Creators: name: Liu, Xiao-Hai
name: Li, Gang
name: Xie, Ju-Jun
name: Zhao, Qiang
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A resonance-like structure as narrow as 10 MeV is observed in the $K^-p$ invariant mass distributions in $Λ_c^+\to p K^- π^+$ at Belle. Based on the large data sample of about 1.5 million events and the small bin width of just 1 MeV for the $K^-p$ invariant mass spectrum, the narrow peak is found precisely lying at the $Λη$ threshold. While lacking evidence for a quark model state with such a narrow width at this mass region, we find that this narrow structure can be naturally identified as a threshold cusp but enhanced by the nearby triangle singularity via the $Λ$-$a_0(980)^+$ or $η$-$Σ(1660)^+$ rescatterings.
description: 6 pages, 4 figures
Additional file 9 of Characteristics of plastid genomes in the genus Ceratostigma inhabiting arid habitats in China and their phylogenomic implications
Creators: name: Zhao, Yu-Juan
name: Liu, Jian
name: Yin, Gen-Shen
name: Gong, Xun
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Supplementary Material 9
title: Semantic agreement and the agreement hierarchy in large language models of Russian
Creators: name: Kuryanov, Ilya
Publisher: name: Universität Stuttgart
Year: 2024
Subjects: subject: 004
subject: 400

description: This thesis investigates the phenomenon of mixed agreement in Russian, where certain nouns denoting professions can trigger both syntactic and semantic agreement. We construct challenge sets testing different aspects of this phenomenon for pre-trained masked language models of Russian, and find that all models considered are able to model the syntactic restrictions on mixed agreement, and, to varying degrees, the preferences for semantic agreement that are observed in natural language use. We also find evidence that the models' behavior on these challenge sets is influenced by gender bias associated with the nouns in question, and that the two kinds of agreement are represented differently in the internal structure of the model.