cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: A case study on developing self-managing teams in an Omani company
Creators: name: Thottiparambil Ravindran, M
Publisher: name: University of Liverpool Repository
Year: 2017

description: The subject of this study was to understand how the development of self-managing teams (SMT) impacted the group process and national employees in a company located in Sultanate of Oman (Middle East). The study also aimed to detail the management interventions that facilitated change from existing hierarchical organisation to SMT structure. Change intended to develop team autonomy in adaptively managing the strategic and operational aspects of the divisions to address workplace problem of scaling up operations and achieving competitiveness, sustainability. Achievement of this objective frees top management from involving in divisional strategic, non-routine and resource management issues, thereby enabling diversification into other market segments. Research questions were framed to focus the study based on these organisational aims. This case study used scholarly practitioner approach by an insider to find answers to the research questions. Findings of the study about the research questions provide a rich description of the change process, thereby alleviating the lack of qualitative studies to develop self-managing teams in the workplace from an insider perspective. The discussions and suggestions to actionable knowledge provide practitioners insights to design change process for enhancing self-management capability and critical stages to be managed to avoid pitfalls due to emergence. Study findings and discussion addresses the paucity of studies for cost-effective strategies to achieve localisation objectives in the context of social forces emanating from the “Arab Spring” - either in Oman or GCC region by developing national employees aligned to workplace values. The constructivist and interpretive nature of the knowledge generated enhances its pragmatic potential. The study findings can assist researchers and practitioners when understanding or developing self-managing teams that compliment organisation strategy to scale business growth, improve responsiveness to clients and increase the commitment of local workforce to enhance localisation.
Jensen divergence based on Fisher's information
Creators: name: Sánchez-Moreno, P.
name: Zarzo, A.
name: Dehesa, J. S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The measure of Jensen-Fisher divergence between probability distributions is introduced and its theoretical grounds set up. This quantity, in contrast to the remaining Jensen divergences, is very sensitive to the fluctuations of the probability distributions because it is controlled by the (local) Fisher information, which is a gradient functional of the distribution. So, it is appropriate and informative when studying the similarity of distributions, mainly for those having oscillatory character. The new Jensen-Fisher divergence shares with the Jensen-Shannon divergence the following properties: non-negativity, additivity when applied to an arbitrary number of probability densities, symmetry under exchange of these densities, vanishing if and only if all the densities are equal, and definiteness even when these densities present non-common zeros. Moreover, the Jensen-Fisher divergence is shown to be expressed in terms of the relative Fisher information as the Jensen-Shannon divergence does in terms of the Kullback-Leibler or relative Shannon entropy. Finally the Jensen-Shannon and Jensen-Fisher divergences are compared for the following three large, non-trivial and qualitatively different families of probability distributions: the sinusoidal, generalized gamma-like and Rakhmanov-Hermite distributions.
description: 8 pages, 8 figures
Ultrafast multi-directional devices for optical wireless communications
Creators: name: Jin, Xian
Publisher: name: University of British Columbia
Year: 2016

description: Optical wireless communications (OWC) has become an increasingly attractive technology for dense urban environments, as it merges the high-speed capability of optical communications with the mobility of wireless operation. Early generations of OWC systems are now emerging as indoor (e.g., Li-Fi) networks and outdoor (e.g., free-space optical) links. Unlike contemporary point-to-point fibre-optic networks, however, these OWC systems typically demand bi-/multi- directional operations between distributed transceivers. With this in mind, various forms of multi-directional optical wireless transceivers are presented in this dissertation. A corner-cube (CC) optical wireless transceiver is introduced first, with orthogonal photoconductive (PC) switches facilitating OWC operation over a solid angle of π/2 steradians. The CC-PC transceiver is capable of simultaneous photodetection (via PC switches operating at a gigahertz bandwidth), optical retroflection (via a CC architecture operating over a solid angle of π/2 steradians), and optical modulation (via a liquid crystal modulator operating at a kilohertz bandwidth). The capabilities of the multi-directional optical wireless transceiver are then extended through the introduction of a spherical (SP) optical wireless transceiver. The SP-PC transceiver offers improved performance over that of the CC-PC transceiver. It is capable of simultaneous photodetection (via PC switches operating at a gigahertz bandwidth), optical retroflection (via refraction over a solid angle of 4π steradians), and optical modulation (via all-optical modulation at a terahertz bandwidth). The proposed optical wireless transceivers are well-suited to the demands of bi-directional OWC networks, with active downlink and passive uplink operation, and they yield great potential for future implementations of OWC networks.
A Multiwavelength Study of a Sample of 70 micron Selected Galaxies in the COSMOS Field II: The Role of Mergers in Galaxy Evolution
Creators: name: Kartaltepe, Jeyhan S.
name: Sanders, D. B.
name: Floc'h, E. Le
name: Frayer, D. T.
name: Aussel, H.
name: Arnouts, S.
name: Ilbert, O.
name: Salvato, M.
name: Scoville, N. Z.
name: Surace, J.
name: Yan, L.
name: Capak, P.
name: Caputi, K.
name: Carollo, C. M.
name: Cassata, P.
name: Civano, F.
name: Hasinger, G.
name: Koekemoer, A. M.
name: Fevre, O. Le
name: Lilly, S.
name: Liu, C. T.
name: McCracken, H. J.
name: Schinnerer, E.
name: Smolcic, V.
name: Taniguchi, Y.
name: Thompson, D. J.
name: Trump, J.
name: Baldassare, V. F.
name: Fiorenza, S. L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We analyze the morphological properties of a large sample of 1503 70 micron selected galaxies in the COSMOS field spanning the redshift range 0.011 being difficult to classify and subject to the effects of band pass shifting, therefore, these numbers can only be considered lower limits. At z<1, where the morphological classifications are most robust, major mergers clearly dominate the ULIRG population (50-80%) and are important for the LIRG population (25-40%). At z>1 the fraction of major mergers is at least 30-40% for ULIRGs. Although the general morphological trends agree with what has been observed for local (U)LIRGs, the fraction of major mergers is slightly lower than seen locally. This is in part due to the difficulty of identifying merger signatures at high redshift. We argue that given the number of major gas-rich mergers observed and the relatively short timescale that they would be observable in the (U)LIRG phase that it is plausible for the observed red sequence of massive ellipticals (<10^12 M_sun) to have been formed entirely by gas-rich major mergers.
description: 30 pages, 27 figures, and 6 tables. Accepted for publication in ApJ. The full resolution version can be found at: http://www.ifa.hawaii.edu/~jeyhan/paperII/Kartaltepe_70mic_PaperII.pdf
Il primo «Don Chisciotte» bilingue in Italia
Creators: name: Scaramuzza Vidoni, Mariarosa
Publisher: name: Università degli Studi di Milano
Year: 2013

description: Il primo «Don Chisciotte» bilingue in Italia
description: Tintas. Quaderni di Letterature iberiche e iberoamericane, N. 3 (2013)
Appunti sulla ricezione italiana di Ana María Matute, tra realismo sociale e mondi incantati
Creators: name: Costa, Francesca
Publisher: name: Università degli Studi di Milano
Year: 2013

description: Appunti sulla ricezione italiana di Ana María Matute, tra realismo sociale e mondi incantati
description: Tintas. Quaderni di Letterature iberiche e iberoamericane, N. 3 (2013)
title: Pteridium aquilinum
title: Western brackenfern
titleType: AlternativeTitle
Creators: name: Dorn, Robert
name: Dorn, Jane
Publisher: name: University of Wyoming
Year: 2006
Subjects: Dennstaedtiaceae
Pteridium
aquilinum

description: Family: Dennstaedtiaceae
description: Genus: Pteridium
description: Species: aquilinum
title: Two-layer Heisenberg model of quasi-2D triangular lattice antiferromagnet and study of the magnetoelastic coupling in Ba₃CoSb₂O₉ using sound velocity measurements
Creators: name: Li, Ming
Publisher: name: Memorial University of Newfoundland
Year: 2020

description: The magnetic field evolution of ground spin states of the stacked planar triangular antiferromagnet with antiferromagnetic interlayer interaction Jc is explored using a minimal 3D classical Heisenberg model (published in Ref. [1]). A bi-quadratic coupling is also used to mimic the effect of spin fluctuations [2] which are known to stabilize the magnetization plateau. A single ion anisotropy is included and states with a magnetic field applied in the ab-plane and along the c-axis are determined. For H || ab-plane, an additional state, in contrast to the 2D model [2], is obtained with weak interlayer interaction. Meanwhile the magnetization plateau decreases with the increment of Jc and vanishes at medium values of Jc. Moreover, two new states with a small z components of spins emerge with large Jc. For H || c-axis, an extra state, compared with the 2D model, is obtained with a weak interlayer interaction. When Jc is large enough, only the state corresponding to the Umbrella phase in the 2D model exists. High-resolution ultrasonic measurements are used to study magnetoelastic coupling as a function of the inplane magnetic field orientation in the spin-1/2 triangular lattice antiferromagnet Ba₃CoSb₂O₉ (published in Ref. [3]). Via these measurements, the relevance of this coupling in stabilizing the 1/3 magnetization plateau (up-up-down state) is explored. The analysis indicates that, while the magnetoelastic coupling in Ba₃CoSb₂O₉ is large, in comparison to other triangular lattice antiferromagnets, the strength of this coupling is still too small to fully account for the magnetization plateau width in Ba₃CoSb₂O₉. Spin fluctuations are therefore the dominant mechanism inducing and stabilizing the magnetization plateau. Our results also show that the amplitude of the spin fluctuations suddenly drops as the V phase is induced at higher field. Furthermore, as the temperature approaches the uud phase boundary from the paramagnetic state, the short range spin correlation, responsible for the softening of the acoustic modes, are also observed. Comparing the experimental results in ordered states at different temperatures, our results indicate that the effect of the thermal fluctuations on the magnetoelastic coupling are negligible at low temperatures in comparison to that of the quantum fluctuations.
Charged Balanced Black Rings in Five Dimensions
Creators: name: Kleihaus, Burkhard
name: Kunz, Jutta
name: Schnülle, Kirsten
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present balanced black ring solutions of pure Einstein-Maxwell theory in five dimensions. The solutions are asymptotically flat, and their tension and gravitational self-attraction are balanced by the repulsion due to rotation and electrical charge. Hence the solutions are free of conical singularities and possess a regular horizon which exhibits the topology S1 x S2 of a torus. We discuss the global charges and the horizon properties of the solutions and show that they satisfy a Smarr relation. We construct these black rings numerically, restricting to the case of black rings with a rotation in the direction of the S1.
description: 7 pages, 7 figures
Manuel Ferreira, «Hora di Bai» (a cura di Elisa Scaraggi e Riccardo Greco), Siena, Vittoria Iguazu Editora, 2012, 144 pp
Creators: name: Alberani, Elisa
Publisher: name: Università degli Studi di Milano
Year: 2013

description: Tintas. Quaderni di Letterature iberiche e iberoamericane, N. 3 (2013)
Developing Techniques for Quantitative Renal Magnetic Resonance Imaging
Creators: name: Daniel, Alexander
Publisher: name: Zenodo
Year: 2021
Subjects: Quantitative MRI
Renal MRI
Magnetic Resonance Imaging
T2 Mapping
Machine Learning
Image Processing
Segmentation

description: The kidneys are morphologically and functionally complex organs and as such, lend themselves to complex methodologies of study. One such methodology is quantitative Magnetic Resonance Imaging (MRI). Rather than simply taking a structural image of the kidneys, quantitative MRI aims to measure physical properties such as the rate of blood flow, tissue perfusion, oxygen consumption and more fundamental properties of the matter making up the organ such as its proton density or longitudinal relaxation time, T1 and transverse relaxation time T2. This is done without the need for ionising radiation and often without exogenous contrast agents, thus making MRI an ideal tool for both clinical and research use.

 Multiple methods have been developed to measure the transverse relaxation time, T2, of the kidneys, often leading to inconsistent results between studies. Here, a methodical comparison of four prominent techniques is performed. This comparison makes use of quantitative phantoms before proceeding to assess each technique in-vivo in healthy volunteers. A Gradient Spin Echo (GraSE) sequence is recommended for future renal T2 mapping. Techniques to measure the Renal Metabolic Rate of Oxygen (RMRO2) would be highly desirable. Susceptibility Based Oximetry (SBO) and T2 Relaxation Under Spin Tagging (TRUST) are modified for use in the abdomen. SBO is found to be poorly suited to measuring oxygenation in the renal veins, however TRUST is used to successfully measure changes in venous oxygenation in the renal vein during an oxygen challenge. Manual definition of the kidneys to compute Total Kidney Volume (TKV) is a tedious and labour intensive bottleneck in many renal MRI studies. Here a Convolutional Neural Network (CNN) is developed to generate fully automated masks of the kidneys to compute TKV with better than human precision. Finally, quantitative renal mapping methods are developed for an ex-vivo renal MRI protocol to enable future correlation with histopathology pipelines. Correlating these two diagnostic methods should aid clinical adoption of renal MRI, increase confidence in diagnostics, improved patient experience, and will have applications in nephrectomy studies and transplantation.
Juan de Guevara, poeta y comediógrafo coetáneo de sor Juana
Creators: name: Schmidhuber De La Mora, Guillermo
Publisher: name: Università degli Studi di Milano
Year: 2013
Subjects: Contemporáneo de sor Juana.

description: Las vidas y las obras de sor Juana Inés de la Cruz y Juan de guevera tuvieron varios cruces: ganaron premios literarios en el mismo concurso, publicaron juntos y colaboraron en escribir a dos plumas la comedia «Amor es más laberinto». Este ensayo elabora sobre la biografía de este sacerdote y autor, con información desconocida hasta hoy; además, incluye un poema original y de tema universitario inédito

The lives and works of sor Juana Inés de la Cruz and Juan Guevera enjoyed several cross paths; they won literary awards at the same contest, published together and collaborated in writing to two pens comedy «Amor es más laberinto». This paper elaborates on the biography of this priest and author, mentioning information unknown until today; a university-milieu poem never publish before.
description: Tintas: Quaderni di Letterature iberiche e iberoamericane, N. 3 (2013)
title: Penstemon fruticosus var scouleri
title: Bush penstemon
titleType: AlternativeTitle
Creators: name: Dorn, Robert
name: Dorn, Jane
Publisher: name: University of Wyoming
Year: 2006
Subjects: Scrophulariaceae
Penstemon
fruticosus

description: Family: Scrophulariaceae
description: Genus: Penstemon
description: Species: fruticosus
Ángela Nzambi (Nanguan ma Nzam), «Ngulsi», Valencia, Federico Méndez Hidalgo, 2012, 78 pp.
Creators: name: Ceppi, Francesca
Publisher: name: Università degli Studi di Milano
Year: 2013

description: Tintas. Quaderni di Letterature iberiche e iberoamericane, N. 3 (2013)
The Heine-Stieltjes correspondence and the polynomial approach to the standard pairing problem
Creators: name: Pan, Feng
name: Guan, Xin
name: Xie, Mingxia
name: Bao, Lina
name: Draayer, J. P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A new approach for solving the Bethe ansatz (Gaudin-Richardson) equations of the standard pairing problem is established based on the Heine-Stieltjes correspondence. For $k$ pairs of valence nucleons on $n$ different single-particle levels, it is found that solutions of the Bethe ansatz equations can be obtained from one (k+1)x(k+1) and one (n-1)x(k+1) matrices, which are associated with the extended Heine-Stieltjes and Van Vleck polynomials, respectively. Since the coefficients in these polynomials are free from divergence with variations in contrast to the original Bethe ansatz equations, the approach thus provides with a new efficient and systematic way to solve the problem, which, by extension, can also be used to solve a large class of Gaudin-type quantum many-body problems and to establish a new efficient angular momentum projection method for multi-particle systems.
description: ReVTeX, 4 pages, no figure
Quadratic harnesses from generalized beta integrals
Creators: name: Bryc, Wlodek
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J25

description: We use generalized beta integrals to construct examples of Markov processes with linear regressions, and quadratic second conditional moments.
On the correctness of Relative Time Dilatation in Special Relativity in vacuum: a rebuttal against the claims by Arthur Boltcho in European Journal of Scientific Research ISSN 1450-216X Vol. 44 No. 4 (2010), pp. 610-611
Creators: name: Corda, Christian
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In his recent paper published in the European Journal of Scientific Research 44, 4, 610-611 (2010), the author, Arthur Boltcho, claims to have found a mathematical disproof of relative time dilatation of Special Relativity Theory (SRT). In this letter we show that the supposed mathematical disproof of relative time dilatation of SRT is totally wrong and that Arthur Boltcho demonstrated nothing. The errors by Boltcho arise from a strong misunderstanding and confusing the concept of "moments" and time intervals in the framework of SRT.
description: Accepted for publication in the Hadronic Journal, to be published during 2011. 4 pages
title: Exploring the relationship between organizational politics and women's access to power in the workplace: An action research inquiry
Creators: name: Chadwick, Dagmar
Publisher: name: University of Liverpool Repository
Year: 2019

description: This study explored ways in which professional women could effectively engage in political behaviour within environments dominated by men, with the objective of increasing their informal and formal power at work. Action research was employed as the method of accomplishing this, enabling study participants to enact various initiatives in their efforts to positively affect the efficacy of their political engagement. This enabled the collection of qualitative data through action learning sets and individual interviews, which provides insights into women’s political will and skill within male-dominated contexts. Central to this study was a six-member action learning set whose members credited their participation in this project with changes in their perceptions of organizational politics, a clearer understanding of how to engage politically, and for three of the six, increased levels of professional power and visibility. Based on the experiences of these learning set members, this research project offers women working within similar circumstances potential strategies that may be employed to more effectively engage in political activity to enhance their power and influence. Additionally, this study produced recommendations for organizations seeking to assist professional women in securing greater authority, visibility, and attain higher-level leadership positions. This includes suggestions about how to ungender organizations, identifying women’s motivations to engage in political behaviours, and normalizing organizational politics as an accepted way of accomplishing goals. From an academic perspective, this project aligns with previous research on this topic by supporting the theory that a relationship exists between political will and skill and offers insights into the use of action research as a means of generating knowledge and creating change.
การประเมินความเสี่ยงต่อสุขภาพและพฤติกรรมการป้องกันอันตรายในการทำงานของกลุ่มแรงงานนอกระบบในจังหวัดพระนครศรีอยุธยา
Creators: name: นันทพร เมฆสวัสดิชัย
Publisher: name: กองนวัตกรรมและวิจัย กรมควบคุมโรค
Year: 2554
Subjects: ความเสี่ยงต่อสุขภาพจากการทำงาน
แรงงานนอกระบบ

description: วารสารควบคุมโรค, 37, 3, 151-159
Emergence of functional information from multivariate correlations
Creators: name: Adami, Christoph
name: C G, Nitash
Publisher: name: figshare
Year: 2022
Subjects: subject: 80102 Artificial Life
subject: FOS: Computer and information sciences
subject: 80301 Bioinformatics Software
subject: 80110 Simulation and Modelling

description: These are the files necessary to reproduce the research in the article "Emergence of functional information from multivariate correlations" by C. Adami and N. C G, published in Philosophical Transaction of the Royal Society (2022). See README for use of the program main.cpp, which uses the file 'len9' with 36,171 self-replicators of length 9 in Avida.
title: Anemone patens
title: Eastern pasqueflower
titleType: AlternativeTitle
Creators: name: Dorn, Robert
name: Dorn, Jane
Publisher: name: University of Wyoming
Year: 2006
Subjects: Ranunculaceae
Anemone
patens

description: Family: Ranunculaceae
description: Genus: Anemone
description: Species: patens
title: Cercocarpus montanus
title: Alder mountain mahogany
titleType: AlternativeTitle
Creators: name: Dorn, Robert
name: Dorn, Jane
Publisher: name: University of Wyoming
Year: 2006
Subjects: Rosaceae
Cercocarpus
montanus

description: Family: Rosaceae
description: Genus: Cercocarpus
description: Species: montanus
Open-Ended Evolutionary Robotics: an Information Theoretic Approach
Creators: name: Delarboulas, Pierre
name: Schoenauer, Marc
name: Sebag, Michèle
Publisher: name: arXiv
Year: 2010
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: This paper is concerned with designing self-driven fitness functions for Embedded Evolutionary Robotics. The proposed approach considers the entropy of the sensori-motor stream generated by the robot controller. This entropy is computed using unsupervised learning; its maximization, achieved by an on-board evolutionary algorithm, implements a "curiosity instinct", favouring controllers visiting many diverse sensori-motor states (sms). Further, the set of sms discovered by an individual can be transmitted to its offspring, making a cultural evolution mode possible. Cumulative entropy (computed from ancestors and current individual visits to the sms) defines another self-driven fitness; its optimization implements a "discovery instinct", as it favours controllers visiting new or rare sensori-motor states. Empirical results on the benchmark problems proposed by Lehman and Stanley (2008) comparatively demonstrate the merits of the approach.
Performance analysis of subcarrier quadrature phase-shift keying systems with I/Q imbalance over Gamma-Gamma fading channels
Creators: name: Zhu, Changle
Publisher: name: University of British Columbia
Year: 2016

description: The error rate performance is studied for subcarrier intensity modulated (SIM) quadrature phase-shift keying (QPSK) system with in-phase and quadrature (I/Q) imbalance over Gamma-Gamma fading channels. In free-space optical (FSO) communication system, the transmitted signals are typically affected by the atmospheric turbulence over the transmission links. In order to study the system performance analytically, different statistical distributions have been proposed to describe the random variation in signal irradiance due to the scintillation caused by the inhomogeneities in both temperature and pressure along the transmission path. Besides the atmospheric turbulence, other sources can also introduce performance degradation to an FSO system. Using quadrature conversion, the performance of the practical system is affected by the phase and amplitude offsets in the two branches. This phenomenon is referred to as I/Q imbalance. Using direct-conversion transceivers, the I/Q imbalance is unavoidable due to the considerable mismatches between the circuit components. This imbalance can happen at transmitter end, receiver end, or both ends of the transceiver. First, we study the error rate performance for a SIM QPSK system with transmitter I/Q imbalance over the Gamma-Gamma fading channels. Then, the error rate performance of a SIM QPSK system with receiver I/Q imbalance is investigated. Finally, the error rate performance is analyzed for a SIM QPSK system with I/Q imbalance at both ends of the transceiver over the Gamma-Gamma fading channels. Closed-form symbol error rate (SER) expressions are derived by taking into account of both the I/Q imbalance and the fading. It is discovered that the value of the receiver amplitude imbalance is irrelevant to the SER of a subcarrier QPSK system. Truncation error analyses are carried out to ensure the accuracy of the approximate series solutions and support the asymptotic analyses. We also present the numerical results to show the performance improvement using a calibrated transceiver. We will treat these three cases separately since they have slightly different models.
Photometric Observations of 107P/Wilson-Harrington
Creators: name: Urakawa, Seitaro
name: Okumura, Shin-ichiro
name: Nishiyama, Kota
name: Sakamoto, Tsuyoshi
name: Takahashi, Noritsugu
name: Abe, Shinsuke
name: Ishiguro, Masateru
name: Kitazato, Kohei
name: Kuroda, Daisuke
name: Hasegawa, Sunao
name: Ohta, Kouji
name: Kawai, Nobuyuki
name: Shimizu, Yasuhiro
name: Nagayama, Shogo
name: Yanagisawa, Kenshi
name: Yoshida, Michitoshi
name: Yoshikawa, Makoto
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present lightcurve observations and multiband photometry for 107P/Wilson-Harrington using five small- and medium-sized telescopes. The lightcurve has shown a periodicity of 0.2979 day (7.15 hour) and 0.0993 day (2.38 hour), which has a commensurability of 3:1. The physical properties of the lightcurve indicate two models: (1) 107P/Wilson-Harrington is a tumbling object with a sidereal rotation period of 0.2979 day and a precession period of 0.0993 day. The shape has a long axis mode (LAM) of L1:L2:L3 = 1.0:1.0:1.6. The direction of the total rotational angular momentum is around λ = 310°, β = -10°, or λ = 132°, β = -17°. The nutation angle is approximately constant at 65°. (2) 107P/Wilson-Harrington is not a tumbler. The sidereal rotation period is 0.2979 day. The shape is nearly spherical but slightly hexagonal with a short axis mode (SAM) of L1:L2:L3 = 1.5:1.5:1.0. The pole orientation is around λ = 330°, β = -27°. In addition, the model includes the possibility of binary hosting. For both models, the sense of rotation is retrograde. Furthermore, multiband photometry indicates that the taxonomy class of 107P/Wilson-Harrington is C-type. No clear rotational color variations are confirmed on the surface.
description: 41 pages, 9 figures, accepted for publication in Icarus
title: Paxistima myrsinites
title: Oregon boxleaf
titleType: AlternativeTitle
Creators: name: Dorn, Robert
name: Dorn, Jane
Publisher: name: University of Wyoming
Year: 2006
Subjects: Celastaceae
Paxistima
myrsinites

description: Family: Celastaceae
description: Genus: Paxistima
description: Species: myrsinites
FeCl3 based Few-Layer Graphene Intercalation Compounds: Single Linear Dispersion Electronic Band Structure and Strong Charge Transfer Doping
Creators: name: Zhan, Da
name: Sun, Li
name: Ni, Zhenhua
name: Liu, Lei
name: Fan, Xiaofeng
name: Wang, Yingying
name: Yu, Ting
name: Lam, Yeng Ming
name: Huang, Wei
name: Shen, Zexiang
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Graphene has attracted great attentions since its first discovery in 2004. Various approaches have been proposed to control its physical and electronic properties. Here, we report that graphene based intercalation compounds is an efficient method to modify the electronic properties of few layer graphene (FLG). FeCl3 intercalated FLG were successfully prepared by two-zone vapor transport method. This is the first report on full intercalation for graphene samples. The features of the Raman G peak of such few-layer graphene intercalation compounds (FLGIC) are in good agreement with their full intercalation structures. The FLGIC presents single Lorentzian 2D peak, similar to that of single layer graphene, indicating the loss of electronic coupling between adjacent graphene layers. First principle calculations further reveal that the band structure of FLGIC is similar to single layer graphene but with strong doping effect due to the charge transfer from graphene to FeCl3. The successful fabrication of FLGIC opens a new way to modify properties of FLG for fundamental studies and future applications.
description: 19 pages, 6 figures, accepted by Advanced Functional Materials
DNA Methylation
Creators: name: Dianna, Gellar
Publisher: name: Zenodo
Year: 2023

description: DNA methylation, one of the most studied epigenetic modifications, refers to the addition of a methyl group to the fifth carbon of cytosine (C) catalyzed by DNA methyltransferases(Dnmts), forming 5-methylcytosine (5mC). DNA methylation predominantly occurs inCpGs but is also found in non-CpG contexts. DNA methylation is heritable and has been associated with multiple cellular processes, including transcriptional repression transposon inactivation,  chromosome inactivation, embryonic development, genomic imprinting, and the alteration of chromatin structure.
La poesía del 'logos' de Vicente Cervera Salinas
Creators: name: Bianchi, Marina
Publisher: name: Università degli Studi di Milano
Year: 2013
Subjects: oesía española actual, 'logos' y 'mythos', poesía filosófica.

description: Vicente Cervera Salinas es poeta, pero también crítico y teórico de la literatura. Como ocurre en muchos escritores que son además profesores, la lectura de sus ensayos ayuda a entender a fondo sus versos, debido a que las dos modalidades comparten la misma postura estética frente al género lírico. Por esta razón, intentaremos interpretar aquí su escritura creativa desde sus disertaciones recogidas en la monografía «La poesía y la idea. Fragmentos de una vieja querella», que estudia desde una perspectiva diacrónica las alternas etapas de la relación entre poesía y filosofía. Tras aclarar las definiciones de 'logos' y 'mythos' y los aspectos del primero que tienen relevancia para la hermenéutica de sus creaciones, nos centraremos en la simbología de la poesía filosófica de Vicente, para explicarla desde las mismas teorías del autor de «De aurigas inmortales» (1993), «La Partitura» (2001), «El alma oblicua» (2003) y «Escalada y otros poemas» (2011), cuyos versos se han traducido a distintas lenguas y se han presentado en muchos países de Europa y Latinoamérica.

Vicente Cervera Salinas is a poet, a critic and a literary theorist. Like many writers who are also professors, his essays help develop a thorough understanding of his poems, since both professions share the same aesthetic stance towards poetry. For this reason, we will try to interpret his creative writings form the monograph «La poesía y la idea. Fragmentos de una vieja querella», where he studies different stages of the relationship between poetry and philosophy from a diachronic perspective. After clarifying the definitions of 'logos' and 'mythos' and certain aspects of the former that are important for the hermeneutics of his creations, we will focus on explaining the symbolism of his philosophical poetry through the analysis of different theories developed by Vicente. His books «De aurigas inmortales» (1993), «La Partitura» (2001), «El alma oblicua» (2003) and «Escalada y otros poemas» (2011) have been translated into different languages and have been presented in many countries throughout Europe and Latin America.
description: Tintas: Quaderni di Letterature iberiche e iberoamericane, N. 3 (2013)
Quand Paris dominait ses campagnes
Creators: name: Muchembled, Robert
Publisher: name: Collectif Inventer le Grand Paris
Year: 2018

description: Contexte Le livre Histoire du Grand Paris est issu du désarroi d’un professeur qui, en 1986, a perdu ses repères archivistiques en quittant Lille pour Paris et s’est ainsi trouvé totalement démuni en face d’étudiants qu’il n’avait pas formés et auxquels il ne savait pas quoi proposer. À l’époque, les historiens modernistes s’intéressaient aux archives des notaires, ce que je n’avais pas fait jusque-là. Mais en me lançant dans la région parisienne et plus particulièrement dans le Val-d’Oise et la Seine Saint-Denis, d’où venaient mes étudiants, pour essayer de leur trouver des sujets de recherche, je me suis dit que le...
Searching for Compton-thick active galactic nuclei at z~0.1
Creators: name: Goulding, Andy
name: Alexander, David
name: Mullaney, James
name: Gelbord, Jonathan
name: Hickox, Ryan
name: Ward, Martin
name: Watson, Mike
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Using a suite of X-ray, mid-IR and optical active galactic nuclei (AGN) luminosity indicators, we search for Compton-thick (CT) AGNs with intrinsic L_X>10^42erg/s at z~0.03-0.2, a region of parameter space which is currently poorly constrained by deep narrow-field and high-energy (E>10keV) all-sky X-ray surveys. We have used the widest XMM-Newton survey (the serendipitous source catalogue) to select a representative sub-sample (14; ~10%) of the 147 X-ray undetected candidate CT AGNs in the Sloan Digital Sky Survey (SDSS) with f_X/f_[OIII]<1; the 147 sources account for ~50% of the overall Type-2 AGN population in the SDSS-XMM overlap region. We use mid-IR spectral decomposition analyses and emission-line diagnostics, determined from pointed Spitzer-IRS spectroscopic observations of these candidate CT AGNs, to estimate the intrinsic AGN emission (predicted L_X,2-10keV (0.2-30)x10^42erg/s). On the basis of the optical [OIII], mid-IR [OIV] and 6um AGN continuum luminosities we conservatively find that the X-ray emission in at least 6/14 (>43%) of our sample appear to be obscured by CT material with N_H>1.5x10^24cm^-2. Under the reasonable assumption that our 14 AGNs are representative of the overall X-ray undetected AGN population in the SDSS-XMM parent sample, we find that >20% of the optical Type-2 AGN population are likely to be obscured by CT material. This implies a space-density of log(Phi) >-4.9Mpc^-3 for CT AGNs with L_X>10^42erg/s at z~0.1, which we suggest may be consistent with that predicted by X-ray background synthesis models. Furthermore, using the 6um continuum luminosity to infer the intrinsic AGN luminosity and the stellar velocity dispersion to estimate M_BH, we find that the most conservatively identified CT AGNs in this sample may harbour some of the most rapidly growing black holes (median M_BH~3x10^7M_o) in the nearby Universe, with a median Eddington ratio of ~0.2.
description: 16 pages, 2 tables, 6 figures. Accepted for publication in MNRAS
Chiral and angular momentum content of mesons
Creators: name: Glozman, L. Ya.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: First, we overview the present status of the effective chiral restoration in excited hadrons and an alternative explanation of the symmetry observed in the highly excited hadrons. Then we discuss a method how to define and measure in a gauge invariant manner the chiral and angular momentum content of mesons at different resolution scales, including the infrared scale, where mass is generated. We illustrate this method by presenting results on chiral and angular momentum content of rho and rho' mesons obtained in dynamical lattice simulations. The chiral symmetry is strongly broken in the rho(770) and neither the a_1(1260) nor the h_1(1170) can be considered as its chiral partners. Its angular momentum content in the infrared is approximately the 3S1 partial wave, in agreement with the quark model language. However, in its first excitation, rho(1450), the chiral symmetry breaking is much weaker and in the infrared this state belongs predominantly to the (1/2,1/2) chiral representation. This state is dominated in the infrared by the 3D1 partial wave and cannot be considered as the first radial excitation of the rho(770)-meson, in contrast to the quark model.
description: 9 pp, Invited talk at "T(r)opical QCD 2010", September 26 - October 1, 2010, Cairns, Australia
Dark Matter Search Experiments
Creators: name: Rau, Wolfgang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Astronomical and cosmological observations of the past 80 years build solid evidence that atomic matter makes up only a small fraction of the matter in the universe. The dominant fraction does not interact with electromagnetic radiation, does not absorb or emit light and hence is called Dark Matter. So far dark matter has revealed its existence only through gravitational effects. The strongest experimental effort to find other evidence and learn more about the nature of the dark matter particles concentrates around Weakly Interacting Massive Particles which are among the best motivated dark matter candidates. The two main groups of experiments in this field aim for indirect detection through annihilation products and direct detection via interactions with atomic matter respectively. The experimental sensitivity is starting to reach the parameter range which is preferred by theoretical considerations and we can expect to confirm or dismiss some of the most interesting theoretical models in the next few years.
description: 23 pages, 6 figures; Prepared for the proceedings of the IVth International Pontecorvo Neutrino Physics School, held in Alushta, Ukraine, from September 26 to October 06, 2010; to be published in "Physics of Elementary Particles and Atomic Nuclei" (Pleiades Publishing Inc., Moscow)
Methane, ammonia, and their irradiation products at the surface of an intermediate-size KBO? A portrait of Plutino (90482) Orcus
Creators: name: Delsanti, Audrey
name: Merlin, Frédéric
name: Guilbert, Aurélie
name: Bauer, James
name: Yang, Bin
name: Meech, Karen J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Orcus is an intermediate-size 1000km-scale Kuiper Belt Object in 3:2 mean-motion resonance with Neptune, in an orbit very similar to that of Pluto. We present visible and near-infrared photometry and spectroscopy obtained with the Keck 10m-telescope and the Gemini 8m-telescope . We confirm the unambiguous detection of crystalline water ice as well as absorption in the 2.2μm region. Both in the visible and near-infrared Orcus' spectral properties appear to be homogeneous over time (and probably rotation) at the resolution available. From Hapke radiative transfer models involving intimate mixtures of various ices we find for the first time that ammonium (NH+4) and traces of ethane (C2 H6), which are most probably solar irradiation products of ammonia and methane, and a mixture of methane and ammonia (diluted or not) are the best candidates to improve the description of the data with respect to a simple water ice mixture (Haumea type surface). The possible more subtle structure of the 2.2μm band(s) should be investigated thoroughly in the future for Orcus and other intermediate size Plutinos to better understand the methane and ammonia chemistry at work, if any. We investigated the thermal history of Orcus with a new 3D thermal evolution model. Simulations over 4.5 x109 yrs with an input 10% porosity, bulk composition of 23% amorphous water ice and 77% dust, and cold accretion show that even with the action of long-lived radiogenic elements only, Orcus should have a melted core and most probably suffered a cryovolcanic event in its history which brought large amounts of crystalline ice to the surface. The presence of ammonia in the interior would strengthen the melting process. The crystalline water ice possibly brought to the surface by a past cryovolcanic event sbe detectable after several billion years despite the irradiation eects, as demonstrated by recent laboratory experiments.
description: 15 pages, 9 figures
title: Pedicularis groenlandica
title: Elephanthead lousewort
titleType: AlternativeTitle
Creators: name: Dorn, Robert
name: Dorn, Jane
Publisher: name: University of Wyoming
Year: 2006
Subjects: Scrophulariaceae
Pedicularis
groenlandica

description: Family: Scrophulariaceae
description: Genus: Pedicularis
description: Species: groenlandica
Photometric Phase Variations of Long-Period Eccentric Planets
Creators: name: Kane, Stephen R.
name: Gelino, Dawn M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The field of exoplanetary science has diversified rapidly over recent years as the field has progressed from exoplanet detection to exoplanet characterization. For those planets known to transit, the primary transit and secondary eclipse observations have a high yield of information regarding planetary structure and atmospheres. The current restriction of these information sources to short-period planets may be abated in part through refinement of orbital parameters. This allows precision targeting of transit windows and phase variations which constrain the dynamics of the orbit and the geometric albedo of the atmosphere. Here we describe the expected phase function variations at optical wavelengths for long-period planets, particularly those in the high-eccentricity regime and multiple systems in resonant and non-coplanar orbits. We apply this to the known exoplanets and discuss detection prospects and how observations of these signatures may be optimized by refining the orbital parameters.
description: 9 pages, 8 figures, accepted for publication in ApJ
title: Ericameria nauseosa
title: Rubber rabbitbrush
titleType: AlternativeTitle
Creators: name: Dorn, Robert
name: Dorn, Jane
Publisher: name: University of Wyoming
Year: 2006
Subjects: Asteraceae
Ericameria
nauseosa

description: Family: Asteraceae
description: Genus: Ericameria
description: Species: nauseosa
title: Penstemon montanus var idahoensis
title: Central Idaho penstemon
titleType: AlternativeTitle
Creators: name: Dorn, Robert
name: Dorn, Jane
Publisher: name: University of Wyoming
Year: 2006
Subjects: Scrophulariaceae
Penstemon
montanus

description: Family: Scrophulariaceae
description: Genus: Penstemon
description: Species: montanus
Functional characterization of gene regulation by nhr-49
Creators: name: Lee, Ka Young
Publisher: name: University of British Columbia
Year: 2016

description: Nuclear hormone receptors (NHRs) are transcription factors that regulate a wide variety of developmental and physiological processes. NHRs are targets of numerous drugs. However, due to limited knowledge on NHR specificity, many such drugs activate multiple biological pathways downstream of NHRs, leading to undesired side effects. To study NHR specificity in vivo, I used the model organism Caenorhabditis elegans. One C. elegans NHR is NHR-49, which regulates various aspects of lipid metabolism. Specifically, it activates genes involved in fatty acid desaturation and fatty acid β-oxidation by binding to a subunit of the Mediator multiprotein complex, MDT-15. Vice versa, NHR-49 represses genes involved in sphingolipid breakdown by heterodimerizing with another C. elegans NHR, NHR-66. Recently, three point mutations in nhr-49 were identified that promote fatty acid desaturation, but whether these alleles act specifically in this pathway or also affect other nhr-49 regulated processes is not clear. To test whether the mutated residues are linked to specific biological functions, I studied how they affect gene expression and protein-protein interactions by real time quantitative PCR and Yeast 2 Hybrid assays. I found that the three point mutations have different effects on nhr-49 dependent metabolic processes. While all three alleles broadly promoted nhr-49 dependent activation, only one allele affected nhr-49 dependent repression. This shows that the mutations and the corresponding amino acid residues have some association with specific nhr-49 dependent biological processes.
Black-hole dynamics in BHT massive gravity
Creators: name: Maeda, Hideki
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using an exact Vaidya-type null-dust solution, we study the area and entropy laws for dynamical black holes defined by a future outer trapping horizon in (2+1)-dimensional Bergshoeff-Hohm-Townsend (BHT) massive gravity. We consider the theory admitting a degenerate (anti-)de Sitter vacuum and pure BHT gravity. It is shown that, while the area of a black hole decreases by the injection of a null dust with positive energy density in several cases, the Wald-Kodama dynamical entropy always increases.
description: 7 pages, 1 figure