cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Making a claim on the public sphere: Toronto women’s anti-slavery activism, 1851-1854
Creators: name: Leroux, Karen
Publisher: name: University of British Columbia
Year: 2009

description: This essay reconstructs the unexplored history of a group of women who claimed a place for themselves in the male-dominated public sphere of Toronto in the early 1850s. The history of these women, who took a public stand on the issues of slavery, abolition and the fugitives escaping to Canada, does not fit seamlessly into the history of the struggle for women's rights nor the history of women's philanthropy. While the anti-slavery women engaged in some of the same activities as these better-known subjects of women's history, they brought a distinctive set of social and political concerns to their activism. Troubled by the influx of destitute fugitive slaves arriving in Canada from the United States, the potential extension of slavery on the North American continent, and the implications these developments could have for the free Christian nation they were building in Canada, these women took advantage of the public sphere to voice and act on their concerns about the moral progress of society, especially in their city. They constructed a distinctly feminine political culture that represented themselves and their activities as conforming to the canons of femininity and domesticity, while it enabled the women to secure access and influence for themselves - albeit limited access and influence - in the public sphere. With aspirations to influence public opinion, but without formal positions of authority in the public sphere, these women called upon the moral authority that nineteenth century society ascribed to women to underwrite their public activities. Feminine moral authority affirmed the righteousness of the values and beliefs that underlay their public activities, and it justified their attempts to persuade others to espouse similar beliefs. It was the foundation upon which these women tried to build a collective political culture and speak on behalf of all Canadian women in the public sphere. Construed as gender-specific, this moral authority rested, however, not only on the distinction of gender, but also on a combination of social attributes and cultural distinctions that included the distinction of race. While there is no doubt that positions of authority in the public sphere of mid-nineteenth century Toronto were dominated by white men, the inroads the women achieved and the roadblocks they confronted suggest that the public sphere was undergoing considerable change in the early 1850s. To be sure, their attempts to influence the formation of public opinion were indicative of larger social and political changes underway in Canadian society — changes that historians have only begun to consider.
Differences between scalar field and scalar density solutions
Creators: name: Pirinççioglu, Nurettin
name: Sert, Ilker
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We explore differences between scalar field, and scalar density solutions by using Robertson-Walker (RW) metric, and also a non-relativistic Hamiltonian is derived for a scalar density field in the post-Newtonian approximation. The results are compared with those of scalar field. The expanding universe in RW metric, and post-Newtonian solution of Klein-Gordon equation are separately discussed.
description: 8 pages, no figures
On the Impact of Flavour Oscillations in Leptogenesis
Creators: name: De Simone, Andrea
name: Riotto, Antonio
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: When lepton flavour effects in thermal leptogenesis are active, they introduce important differences with respect to the case in which they are neglected, the so-called one-flavour approximation. We investigate analytically and numerically the transition from the one-flavour to the two-flavour case when the $τ$-lepton flavour becomes distinguishable from the other two flavours. We study the impact of the oscillations of the asymmetries in lepton flavour space on the final lepton asymmetries, for the hierarchical right-handed neutrino mass spectrum. Flavour oscillations project the lepton state on the flavour basis very efficiently. We conclude that flavour effects are relevant typically for $M_1\lsim 10^{12}$ GeV, where $M_1$ is the mass of the lightest right-handed neutrino.
description: 24 pages, 9 figures. Minor corrections; version published in JCAP
Separation of orbital contributions to the optical conductivity of BaVS$_3$
Creators: name: Kezsmarki, I.
name: Mihaly, G.
name: Gaal, R.
name: Barisic, N.
name: Akrap, A.
name: Berger, H.
name: Forro, L.
name: Homes, C. C.
name: Mihaly, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The correlation-driven metal-insulator transition (MIT) of BaVS$_3$ was studied by polarized infrared spectroscopy. In the metallic state two types of electrons coexist at the Fermi energy: The quasi 1D metallic transport of $A_{1g}$ electrons is superimposed on the isotropic hopping conduction of localized $E_g$ electrons. The "bad-metal" character and the weak anisotropy are the consequences of the large effective mass $m_{eff}\approx7m_e$ and scattering rate $Γ\geq160$ meV of the quasi-particles in the $A_{1g}$ band. There is a pseudo-gap above $T_{MI}=69$ K, and in the insulating phase the gap follows the BCS-like temperature dependence of the structural order parameter with $Δ_{ch}\approx42$ meV in the ground state. The MIT is described in terms of a weakly coupled two-band model.
description: 5 pages, 4 figures. submitted to PRL
A Study of Gas Entropy Profiles of 47 Galaxy Clusters and Groups Out to the Virial Radius
Creators: name: Zhu, Zhenghao
name: Xu, Haiguang
name: Hu, Dan
name: Shan, Chenxi
name: Zhu, Yongkai
name: Fan, Shida
name: Zhao, Yuanyuan
name: Gu, Liyi
name: Wu, Xiang-Ping
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Some observations such as those presented in Walker et al. show that the observed entropy profiles of the intra-cluster medium (ICM) deviate from the power-law prediction of adiabatic simulations. This implies that non-gravitational processes, which are absent in the simulations, may be important in the evolution of the ICM, and by quantifying the deviation, we may be able to estimate the feedback energy in the ICM and use it as a probe of the non-gravitational processes. To address this issue we calculate the ICM entropy profiles in a sample of 47 galaxy clusters and groups, which have been observed out to at least $\sim r_{500}$ with Chandra, XMM-Newton and/or Suzaku, by constructing a physical model to incorporate the effects of both gravity and non-gravitational processes to fit the observed gas temperature and surface brightness profiles via Bayesian statistics. After carefully evaluating the effects of systematic errors, we find that the gas entropy profiles derived with best-fit results of our model are consistent with the simulation-predicted power-law profile near the virial radius, while the flattened profiles reported previously can be explained by introducing the gas clumping effect, the existence of which is confirmed in 19 luminous targets in our sample. We calculate the total feedback energy per particle and find that it decreases from $\sim 10$ keV at the center to about zero at $\sim 0.35$$r_{200}$ and is consistent with zero outside $\sim 0.35$$r_{200}$, implying the upper limit of the feedback efficiency $\sim 0.02$ for the super-massive black holes hosted in the brightest cluster galaxies.
description: 40 pages, 8 figures, and 5 tables, accepted for publication in ApJ
Early warning of precessing compact binary merger with third-generation gravitational-wave detectors
Creators: name: Tsutsui, Takuya
name: Nishizawa, Atsushi
name: Morisaki, Soichiro
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Rapid localization of gravitational-wave events is important for the success of the multi-messenger observations. The forthcoming improvements and constructions of gravitational-wave detectors will enable detecting and localizing compact-binary coalescence events even before mergers, which is called early warning. The performance of early warning can be improved by considering modulation of gravitational wave signal amplitude due to the Earth rotation and the precession of a binary orbital plane caused by the misaligned spins of compact objects. In this paper, for the first time we estimate localization precision in the early warning quantitatively, taking into account an orbital precession. We find that a neutron star-black hole binary at $z=0.1$ can typically be localized to $100\,\mathrm{deg}^2$ and $10\,\mathrm{deg^2}$ at the time of $12$ -- $15 \,\mathrm{minutes}$ and $50$ -- $300\,\mathrm{seconds}$ before merger, respectively, which cannot be achieved without the precession effect.
Bose glass and superfuid phases of cavity polaritons
Creators: name: Malpuech, G.
name: Solnyshkov, D. D.
name: Ouerdane, H.
name: Glazov, M. M.
name: Shelykh, I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the calculation of cavity exciton-polariton phase diagram which takes into account the presence of realistic structural disorder. Polaritons are modelled as weakly interacting two-dimensional bosons. We show that with increasing density polaritons first undergo a quasi-phase transition towards a Bose glass: the condensate is localized in at least one minimum of the disorder potential, depending on the value of the chemical potential of the polariton system. A further increase of the density leads to a percolation process of the polariton fluid which gives rise to a Kosterlitz-Thouless phase transition towards superfluidity. The spatial representation of the condensate wavefunction as well as the spectrum of elementary excitations are obtained from the solution of the Gross-Pitaevskii equation for all the phases.
description: 4 pages, 3 figures
The eta decay constant in `resummed' chiral perturbation theory
Creators: name: Kolesar, M.
name: Novotny, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The recently developed 'Resummed' ChPT is illustrated on the case of pseudoscalar meson decay constants. We try to get an estimate of the eta decay constant, which is not well known from experiments, while using several ways including the Generalized ChPT Lagrangian to gather information beyond Standard next-to-leading order. We compare the results to published ChPT predictions, our own Standard ChPT calculations and available phenomenological estimates.
description: Presented by M.K. at Hadron Structure'07, Modra, Slovakia, 3-7.9.2007
"Sankilistara" y "sancīlitāra": convergencia morfológica entre herencias indoeuropeas y paleoeuropeas
Creators: name: Rivas, Jose Carlos
Publisher: name: Zenodo
Year: 2025
Subjects: celtiberian
historical linguistics
Botorrita

description: Este artículo propone una reconstrucción etimológica y funcional comparada entre la forma celtibérica sankilistara, atestiguada en el Bronce I de Botorrita, y una forma latina teórica sancīlitāra, derivada de sancīlis. Se investiga si ambas formas, a pesar de proceder de tradiciones morfológicas distintas, podrían reflejar una lógica estructural paralela basada en la raíz protoindoeuropea sak- ‘consagrar’. A través del análisis de participios, sufijos de posibilidad (-ilis) y marcas de finalidad (-tara), se argumenta que sankilistara representa una construcción híbrida, donde confluyen morfemas indoeuropeos con elementos propios de lenguas paleoeuropeas o no indoeuropeas. Esta convergencia morfológica refuerza la hipótesis de una cognación funcional entre ambas formas, así como la posibilidad de un sustrato tipológico común en la península ibérica prerromana.
description: This article offers a comparative etymological and functional reconstruction of the Celtiberian form sankilistara, attested in the Botorrita I Bronze inscription, and a theoretical Latin form sancīlitāra, derived from sancīlis. It investigates whether both forms—despite arising from different morphological traditions—might reflect a parallel structural logic based on the Proto-Indo-European root sak- ‘to consecrate’. Through the analysis of participles, possibility suffixes (-ilis), and markers of purpose or direction (-tara), the study argues that sankilistara represents a hybrid construction, combining Indo-European morphology with elements potentially derived from pre-Indo-European or paleoeuropean languages. This morphological convergence supports the hypothesis of functional cognation between the two forms, as well as the existence of a broader typological substrate in pre-Roman Iberia.
Comparison between ab-initio and phenomenological modeling of the exchange couplings in diluted magnetic semiconductors: the case of $Zn_{1-x}Cr_{x}Te$
Creators: name: ~Bouzerar, Georges
name: Bouzerar, Richard
name: ~Kudrnovský, Josef
name: Ziman, Timothy
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using a recently developed semi-analytical method (Self-Consistent Local RPA or SC-LRPA) we study the stability of the ferromagnetic phase in diluted magnetic systems where the exchange coupling between magnetic impurities are of RKKY form. A short discussion of the relevance of these calculations with respect to the ferromagnetism observed in diluted ferromagnetic materials is provided. Then, within a two step approach, we study ferromagnetism in $Zn_{1-x}Cr_{x}Te$. In the first step of our study, we calculate the magnetic couplings between Mn impurities within the LDA. In the second step, we diagonalize the resulting effective Heisenberg Hamiltonian using the SC-LRPA. We also compare, when available, our calculations with Monte Carlo simulations and experimental measurements.
description: Proceedings of the International Conference MSM05, Agadir Maroc September 2005'', to appear in Physica Status Solidi
A Review of Hidden Markov Models and Recurrent Neural Networks for Event Detection and Localization in Biomedical Signals
Creators: name: Khalifa, Yassin
name: Mandic, Danilo
name: Sejdić, Ervin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Biological sciences

description: Biomedical signals carry signature rhythms of complex physiological processes that control our daily bodily activity. The properties of these rhythms indicate the nature of interaction dynamics among physiological processes that maintain a homeostasis. Abnormalities associated with diseases or disorders usually appear as disruptions in the structure of the rhythms which makes isolating these rhythms and the ability to differentiate between them, indispensable. Computer aided diagnosis systems are ubiquitous nowadays in almost every medical facility and more closely in wearable technology, and rhythm or event detection is the first of many intelligent steps that they perform. How these rhythms are isolated? How to develop a model that can describe the transition between processes in time? Many methods exist in the literature that address these questions and perform the decoding of biomedical signals into separate rhythms. In here, we demystify the most effective methods that are used for detection and isolation of rhythms or events in time series and highlight the way in which they were applied to different biomedical signals and how they contribute to information fusion. The key strengths and limitations of these methods are also discussed as well as the challenges encountered with application in biomedical signals.
Promotion of cooperation induced by the interplay between structure and game dynamics
Creators: name: Fu, Feng
name: Chen, Xiaojie
name: Liu, Lianghuan
name: Wang, Long
Publisher: name: arXiv
Year: 2007
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We consider the coupled dynamics of the adaption of network structure and the evolution of strategies played by individuals occupying the network vertices. We propose a computational model in which each agent plays a $n$-round Prisoner's Dilemma game with its immediate neighbors, after that, based upon self-interest, partial individuals may punish their defective neighbors by dismissing the social tie to the one who defects the most times, meanwhile seek for a new partner at random from the neighbors of the punished agent. It is found that the promotion of cooperation is attributed to the entangled evolution of individual strategy and network structure. Moreover, we show that the emerging social networks exhibit high heterogeneity and disassortative mixing pattern. For a given average connectivity of the population and the number of rounds, there is a critical value for the fraction of individuals adapting their social interactions, above which cooperators wipe out defectors. Besides, the effects of the average degree, the number of rounds, and the intensity of selection are investigated by extensive numerical simulations. Our results to some extent reflect the underlying mechanism promoting cooperation.
description: 13 pages, 6 figures
The theory of the reentrant effect in susceptibility of cylindrical mesoscopic samples
Creators: name: Gogadze, G. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A theory has been developed to explain the anomalous behavior of the magnetic susceptibility of a normal metal-superconductor ($NS$) structure in weak magnetic fields at millikelvin temperatures. The effect was discovered experimentally by A.C. Mota et al \cite{10}. In cylindrical superconducting samples covered with a thin normal pure metal layer, the susceptibility exhibited a reentrant effect: it started to increase unexpectedly when the temperature lowered below 100 mK. The effect was observed in mesoscopic $NS$ structures when the $N$ and $S$ metals were in good electric contact. The theory proposed is essentially based on the properties of the Andreev levels in the normal metal. When the magnetic field (or temperature) changes, each of the Andreev levels coincides from time to time with the chemical potential of the metal. As a result, the state of the $NS$ structure experiences strong degeneracy, and the quasiparticle density of states exhibits resonance spikes. This generates a large paramagnetic contribution to the susceptibility, which adds up to the diamagnetic contribution thus leading to the reentrant effect. The explanation proposed was obtained within the model of free electrons. The theory provides a good description for experimental results [10].
Postpartum Healthcare Use Between Two Deliveries and Severe Maternal Morbidity, Michigan, 2009-2015
Creators: name: Sappenfield, Olivia R
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: Severe maternal morbidity (SMM) represents a group of life-threatening conditions of labor and delivery that have short and long-term implications. Current efforts focus on reducing SMM during acute events. Very little research has examined whether postpartum healthcare may complement current efforts. Postpartum healthcare, which includes attending a postpartum visit and receiving contraception, is important for addressing health needs, connecting individuals to needed specialty care and other preventive care such as a well-woman visit, and helping individuals achieve an optimal inter-pregnancy interval. However, there is a dearth of literature on whether postpartum healthcare use differs by SMM-status, whether postpartum healthcare use is associated with reduced risk of subsequent SMM, and whether history of SMM is associated with a change postpartum healthcare use across two deliveries. This study included Michigan residents with at least one, and a subset of individuals with at least two sequential, Medicaid-paid deliveries between October 1, 2009 and September 30, 2015. Data were from maternally linked birth records and Medicaid billing claims. SMM was identified from delivery claims using International Classification of Diseases, 9th Revision, Clinical Modification codes for 16 diagnoses and 5 procedures recommended by the Centers for Disease Control and Prevention. Postpartum healthcare included postpartum visit attendance with or without receipt of most or moderately effective contraception identified in billing claims. Postpartum visit attendance used the Healthcare Effectiveness Data and Information Set’s performance measure. In analysis, either multinomial or binary logistic regression was conducted to calculate predicted margins to generate either risk or rate ratios and 95% confidence intervals. Multivariable models were built using LASSO. Almost half of individuals with at least one Medicaid-paid delivery did not attend a postpartum visit, and postpartum healthcare use did not differ by SMM during delivery. About one-third of individuals with at least two sequential Medicaid-paid deliveries did not attend a postpartum visit after either delivery. Repeat SMM including transfusion was associated with a significantly higher probability of not attending a postpartum visit after either delivery. However, postpartum healthcare use, more specifically attending a postpartum visit and receiving contraception, was associated with a lower rate of subsequent SMM.
Seismotectonics of Bosnia - Overview
Creators: name: Omerbashich, M.
name: Sijaric, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Seismotectonics of Bosnia seems to follow the Mediterranean marine regime. Earthquakes occur mostly in the outer Dinaric Alps (southern Bosnia), while the strongest earthquakes occur within the Sarajevo Fault system in southern and northwestern Bosnia. In addition to active tectonics being strong, crustal earthquakes occur often as well. Due to rich hydrogeology, crustal loading such as by snow and rain, or reservoir inundation, represents the most important secondary seismogenic source in the region. Despite its exquisite and active geomorphology no comprehensive and reliable geodynamical studies exist on the region. Seismic sensors coverage is extremely poor also. One centenary analogue, and a few recently installed digital seismometers are insufficient for a region that exhibits mild to high seismic activity. Significant investments are needed in order for GPS, seismic and other sensor instrumented networks to be put in place or enhanced. Technical personnel needs to be educated to enable support provide for studies that are done within broader scientific activities. Such efforts that presently seek to include Bosnia under their scope are ESF COST Action 625, NATO Stability Pact DPPI program, and EUREF CERGOP geophysics projects.
description: A rare overview article
Perfect transmission and perfect reflection of Bogoliubov quasiparticles in a dynamically unstable Bose-Einstein condensate
Creators: name: Ohashi, Terumichi
name: Kawaguchi, Yuki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The Nambu-Goldstone (NG) mode in a Bose-Einstein condensate (BEC) transmits a potential barrier with probability 1 in the zero-energy limit, which is known as the anomalous tunneling. In this paper, we investigate the tunneling properties of quasiparticles in a dynamically unstable BEC. We prepare a multi-component BEC (binary and spin-1 BEC) in a dynamically unstable state and solve the tunneling problem of the spin-wave excitation from the condensate. We find that the perfect transmission occurs even when the BEC is dynamically unstable if the spin-wave is the NG mode. Here, the mode that exhibits the perfect transmission is the dynamically unstable spin-wave mode, which is a pure-imaginary-eigenvalue solution of the Bogoliubov-de Gennes equation. Hence, we should take the zero-energy limit along not the real axis but the imaginary axis. We also demonstrate the existence of the perfect reflection of a dynamically unstable mode at the point where the imaginary part of the eigenvalue takes its maximum. In this case, the incident and reflected waves destructively interfere, and the amplitude of the quasiparticle wave function is strongly suppressed. We numerically confirm that the perfect reflection is a generic nature of dynamically unstable modes and not related to the NG mode.
description: 9pages, 6 figures
การตรวจสอบเบื้องต้นถึงพฤติกรรมการใช้พลังงานด้วยเครื่องมือทางเศรษฐศาสตร์
Creators: name: มาฆะสิริ เชาวกุล
Publisher: name: คณะบริหารธุรกิจ เศรษฐศาสตร์และการสื่อสาร มหาวิทยาลัยนเรศวร
Year: 2549
Subjects: พลังงาน,รายได้ประชาชาติจังหวัด,ค่าความยืดหยุ่นของการใช้พลังงานต่อรายได้ประชาชาติจังหวัด,ยุทธศาสตร์พลังงานความรู้

description: 1, 1, วารสารบริหารธุรกิจ เศรษฐศาสตร์และการสื่อสาร
Traffic Condition Assessment: Integrated Dynamic Travel Time Prediction and Accident Detection Models
Creators: name: Taghipour, Homa
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: Having access to accurate travel time is of great importance for both highway network users and traffic operators. The travel time which is currently reported for most highways is estimated by employing naïve methods and using limited sources of data. This might result in inaccurate travel time prediction and could impose difficulties on travelers. Therefore, proposing a comprehensive framework that utilizes various data sources and appropriate methodologies in order to predict the travel time accurately is essential. In this thesis, a hybrid dynamic approach is proposed to predict travel time of highway corridors under two traffic conditions: regular traffic condition and accident condition. To this end, first enhanced travel time prediction models for highway links are developed. The data, which is used in these models includes traffic spatiotemporal, geometry, weather condition, road work, special events, and accidents data. On the other hand, accident as an influential factor can considerably impact travel time. Therefore, advanced techniques including machine learning, deep learning, and deep ensemble models are developed to detect traffic accidents of highways in real time. Thereafter, a dynamic travel time prediction approach is suggested for highway corridors using integration of the developed travel time prediction and accident detection models of highway links. Finally, to find the optimal estimation of travel time for highway corridors, an ensemble based Kalman Filter algorithm is proposed that consequently led to boosting the prediction accuracy.
Fast or Slow: An Autonomous Speed Control Approach for UAV-assisted IoT Data Collection Networks
Creators: name: Chu, Nam H.
name: Hoang, Dinh Thai
name: Nguyen, Diep N.
name: Van Huynh, Nguyen
name: Dutkiewicz, Eryk
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Unmanned Aerial Vehicles (UAVs) have been emerging as an effective solution for IoT data collection networks thanks to their outstanding flexibility, mobility, and low operation costs. However, due to the limited energy and uncertainty from the data collection process, speed control is one of the most important factors to optimize the energy usage efficiency and performance for UAV collectors. This work aims to develop a novel autonomous speed control approach to address this issue. To that end, we first formulate the dynamic speed control task of a UAV as a Markov decision process taking into account its energy status and location. In this way, the Q-learning algorithm can be adopted to obtain the optimal speed control policy for the UAV. To further improve the system performance, we develop an highly-effective deep dueling double Q-learning algorithm utilizing outstanding features of the deep neural networks as well as advanced dueling architecture to quickly stabilize the learning process and obtain the optimal policy. Through simulation results, we show that our proposed solution can achieve up to 40% greater performance compared with other conventional methods. Importantly, the simulation results also reveal significant impacts of UAV's energy and charging time on the system performance.
Two Chebyshev Spectral Methods for Solving Normal Modes in Atmospheric Acoustics
Creators: name: Houwang, Tu
name: Yongxian, Wang
name: Wenbin, Xiao
name: Qiang, Lan
name: Wei, Liu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: The normal mode model is important in computational atmospheric acoustics. It is often used to compute the atmospheric acoustic field under a harmonic point source. Its solution consists of a set of discrete modes radiating into the upper atmosphere, usually related to the continuous spectrum. In this article, we present two spectral methods, the Chebyshev--Tau and Chebyshev--Collocation methods, to solve for the atmospheric acoustic normal modes, and corresponding programs were developed. The two spectral methods successfully transform the problem of searching for the modal wavenumbers in the complex plane into a simple dense matrix eigenvalue problem by projecting the governing equation onto a set of orthogonal bases, which can be easily solved through linear algebra methods. After obtaining the eigenvalues and eigenvectors, the horizontal wavenumbers and their corresponding modes can be obtained with simple processing. Numerical experiments were examined for both downwind and upwind conditions to verify the effectiveness of the methods. The running time data indicated that both spectral methods proposed in this article are faster than the Legendre--Galerkin spectral method proposed previously.
description: 10 pages, 8 figures and 3 tables
Evaluation of physical stability, effi cacy and preference of anticellulitecream containing natural compounds
Creators: name: Napaphak Jaipakdee
name: Kamolwan Trakanchaiwong
name: Ekapol Limpongsa
Publisher: name: Faculty of Pharmaceutical Sciences KKU, MSU, UBU
Year: 2015
Subjects: Anticellulite cream,Black tea,Lemongrass oil,Lemon oil,Volunteer

description: 2, 11, Isan Journal ofPharmaceutical Sciences
การใช้ประโยชน์ปุ๋ยมูลไส้เดือนในการปรับปรุงดินสำหรับการปลูกผักคะน้า
Creators: name: รินทร์ชนิศ กุลพรพิพัชญ์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2558
Subjects: ปุ๋ยมูลไส้เดือน, ธาตุอาหารหลัก, ดิน

description: 4, 34, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
On the Pauli graphs of N-qudits
Creators: name: Planat, Michel
name: Saniga, Metod
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A comprehensive graph theoretical and finite geometrical study of the commutation relations between the generalized Pauli operators of N-qudits is performed in which vertices/points correspond to the operators and edges/lines join commuting pairs of them. As per two-qubits, all basic properties and partitionings of the corresponding Pauli graph are embodied in the geometry of the generalized quadrangle of order two. Here, one identifies the operators with the points of the quadrangle and groups of maximally commuting subsets of the operators with the lines of the quadrangle. The three basic partitionings are (a) a pencil of lines and a cube, (b) a Mermin's array and a bipartite-part and (c) a maximum independent set and the Petersen graph. These factorizations stem naturally from the existence of three distinct geometric hyperplanes of the quadrangle, namely a set of points collinear with a given point, a grid and an ovoid, which answer to three distinguished subsets of the Pauli graph, namely a set of six operators commuting with a given one, a Mermin's square, and set of five mutually non-commuting operators, respectively. The generalized Pauli graph for multiple qubits is found to follow from symplectic polar spaces of order two, where maximal totally isotropic subspaces stand for maximal subsets of mutually commuting operators. The substructure of the (strongly regular) N-qubit Pauli graph is shown to be pseudo-geometric, i. e., isomorphic to a graph of a partial geometry. Finally, the (not strongly regular) Pauli graph of a two-qutrit system is introduced; here it turns out more convenient to deal with its dual in order to see all the parallels with the two-qubit case and its surmised relation with the generalized quadrangle Q(4, 3), the dual ofW(3).
description: 17 pages. Expanded section on two-qutrits, Quantum Information and Computation (2007) accept\'e
Spectral signatures of PeVatrons
Creators: name: Celli, Silvia
name: Aharonian, Felix
name: Gabici, Stefano
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We analyze the energy distributions of final (stable) products - gamma rays, neutrinos, and electrons - produced in inelastic proton-proton collisions in the PeV energy regime. We also calculate the energy spectrum of synchrotron radiation from secondary electrons, assuming that these are promptly cooled in the surrounding magnetic field. We show that the synchrotron radiation has an energy distribution much shallower than that of primary protons, and hence we suggest to take advantage of such a feature in the spectral analysis of the highest energy (cut-off) emission region from particle accelerators. For a broad range of energy distributions in the parent protons, we propose simple analytical presentations for the spectra of secondaries in the cut-off region. These results can be used in the interpretation of high-energy radiation from PeVatrons - cosmic-ray factories accelerating protons to energies up to 1 PeV.
description: 14 pages, 6 figures. Accepted by ApJ
การพยายามฆ่าตัวตายของผู้ป่วยจิตเวชที่เข้ารับการรักษาในโรงพยาบาลจิตเวชขอนแก่นราชนครินทร์
Creators: name: วาทินี สุขมาก
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2558
Subjects: การพยายามฆ่าตัวตาย, โรงพยาบาลจิตเวชขอนแก่นราชนครินทร์

description: 4, 34, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Optimal Approximation of Elliptic Problems by Linear and Nonlinear Mappings I
Creators: name: Dahlke, Stephan
name: Novak, Erich
name: Sickel, Winfried
Publisher: name: arXiv
Year: 2006
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We study the optimal approximation of the solution of an operator equation Au=f by linear and nonlinear mappings.
Post-socialism and urban redevelopment: planning for the transformation of Prague’s historical core
Creators: name: Martinson, Leanne
Publisher: name: University of British Columbia
Year: 2009

description: The city of Prague has undergone drastic transformations since the 1989 Velvet Revolution ended over forty years of socialist rule in Czechoslovakia. Democratic and market economy based systems quickly replaced the previous centralized command system. These structural shifts have significantly impacted the redevelopment of Prague in the last six years - especially the redevelopment of its crown jewel, the historical core. Using a case study format, this thesis documented some of the critical changes that have occurred within the historical core of the city of Prague during the so-called 'transitional era.' The research also analyzed the implications of these larger structural changes for the city centre and its local citizens. The primary research in Prague focussed on the emerging conflict between the rapidly developing commercial and tourist functions and the unique character of the historical core, its present mixed use function, and the future permanence of its local citizens. The research methodology used included two case studies, personal observation in Prague, a literature review, and key informant interviews. The two case study surveys documented changes in the small scale commercial or non-residential sector since the Velvet Revolution. The findings indicated that the commercial sector had increased in significance in the city centre, was selling different goods today than it was prior to 1989, and was catering to a different clientele today than it was during the socialist era. Specifically, shops and services were found to be selling predominantly luxury and tourist goods to clientele that are no longer predominantly local Czech citizens. Foreigners, both business and tourist, were found to be the key emerging clientele for the local shops operating within the historical core. The findings suggested that the function of the historical core has changed tremendously since 1989. The historical core has been revitalized and is fast becoming a commercial centre for the city. However, these changes are threatening the permanence of the local inhabitants of the residential areas within the historical core. The thesis conclusions suggest that Prague's urban planners need to work towards providing more specific strategies to address the emerging conflict between the permanence of residents within the city centre and the emerging business and tourist functions of the historical core. New urban planning policies are required if the mixed use functions (both residential and commercial uses) and inhabitants are to be maintained in the future within the historical core of Prague.
Basic properties of incomplete Macdonald function with applications
Creators: name: Shu, Jian-Jun
name: Shastri, Kunal Krishnaraj
Publisher: name: arXiv
Year: 2020
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: The incomplete version of the Macdonald function has various appellations in literature and earns a well-deserved reputation of being a computational challenge. This paper ties together the previously disjoint literature and presents the basic properties of the incomplete Macdonald function, such as recurrence and differential relations, series and asymptotic expansions. This paper also shows that the incomplete Macdonald function, as a simple closed-form expression, is a particular solution to a parabolic partial differential equation, which arises naturally in a wide variety of transient and diffusion-related phenomena.
Social dilemmas in an online social network: the structure and evolution of cooperation
Creators: name: Fu, Feng
name: Chen, Xiaojie
name: Liu, Lianghuan
name: Wang, Long
Publisher: name: arXiv
Year: 2007
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We investigate two paradigms for studying the evolution of cooperation--Prisoner's Dilemma and Snowdrift game in an online friendship network obtained from a social networking site. We demonstrate that such social network has small-world property and degree distribution has a power-law tail. Besides, it has hierarchical organizations and exhibits disassortative mixing pattern. We study the evolutionary version of the two types of games on it. It is found that enhancement and sustainment of cooperative behaviors are attributable to the underlying network topological organization. It is also shown that cooperators can survive when confronted with the invasion of defectors throughout the entire ranges of parameters of both games. The evolution of cooperation on empirical networks is influenced by various network effects in a combined manner, compared with that on model networks. Our results can help understand the cooperative behaviors in human groups and society.
description: 14 pages, 7 figures
A Review of Visual Descriptors and Classification Techniques Used in Leaf Species Identification
Creators: name: Thyagharajan, K. K.
name: Raji, I. Kiruba
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences
subject: I.2.6; I.2.10; I.4.6; I.4.7; I.4.10; I.5; K.3.2

description: Plants are fundamentally important to life. Key research areas in plant science include plant species identification, weed classification using hyper spectral images, monitoring plant health and tracing leaf growth, and the semantic interpretation of leaf information. Botanists easily identify plant species by discriminating between the shape of the leaf, tip, base, leaf margin and leaf vein, as well as the texture of the leaf and the arrangement of leaflets of compound leaves. Because of the increasing demand for experts and calls for biodiversity, there is a need for intelligent systems that recognize and characterize leaves so as to scrutinize a particular species, the diseases that affect them, the pattern of leaf growth, and so on. We review several image processing methods in the feature extraction of leaves, given that feature extraction is a crucial technique in computer vision. As computers cannot comprehend images, they are required to be converted into features by individually analysing image shapes, colours, textures and moments. Images that look the same may deviate in terms of geometric and photometric variations. In our study, we also discuss certain machine learning classifiers for an analysis of different species of leaves.
description: 44 pages, 7 figures, "for final published version, see https://link.springer.com/article/10.1007/s11831-018-9266-3"
Fractional Variations for Dynamical Systems: Hamilton and Lagrange Approaches
Creators: name: Tarasov, Vasily E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Fractional generalization of an exterior derivative for calculus of variations is defined. The Hamilton and Lagrange approaches are considered. Fractional Hamilton and Euler-Lagrange equations are derived. Fractional equations of motion are obtained by fractional variation of Lagrangian and Hamiltonian that have only integer derivatives.
description: 21 pages, LaTeX
Performance and Feasibility of Low-Cost Air Sensors for Community and Occupational Exposure Assessment
Creators: name: Saisattha Noomnual
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: Air quality monitoring has been shifted to more miniaturized and low-cost sensors. These low-cost sensors enhance the ability to understand air quality in a wide range of spatial and temporal conditions; in addition to advancing personal exposure assessment studies. However, there are several challenges in employing low-cost sensors, including the development of sensors producing high-quality data and the evaluation of sensor performances in environmental and occupational settings. The present study examined the performance of low-cost air sensors in environmental and occupational settings and the performance of these sensors against EPA monitors. The inter- and intra-sampler variability of these sensors were assessed in order to gain an understanding of their reliability for future exposure assessment studies. The feasibility of employing these sensors with participation of citizen scientists was determined. The findings demonstrate that it is feasible to employ the low-cost sensors for local air quality assessment and personal exposure characterization in support of citizen science projects, when the citizen scientists are properly trained on how to operate and interact with the sensors. The collocation study demonstrated that all investigated low-cost sensors had a very high degree of precision and sufficient accuracy in obtaining air pollutant concentrations at various locations to assess the relative air quality. The low-cost sensors should not be used for compliance assessment; however, they are very useful tools in determining the hot spots, and for public education, outreach, and advocacy efforts. The low-cost sensors were observed to be impacted by the temperature and humidity. This suggested more collocated studies in diverse temporal and spatial conditions to fill the knowledge gap of the sensor performance in different locations in order to develop more appropriate and representative correction algorithms for specific locations. Moreover, the findings highlighted the significance of implementing the effective Train-the-Trainer approach in support of community-based research air monitoring projects empowering citizen scientists to perform local air quality assessment for addressing their public health concerns pertaining to air quality in their environments.
Theory of non-Markovian decay of a cascade atom in high-Q cavities and photonic band-gap materials
Creators: name: Garraway, B. M.
name: Dalton, B. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The dynamics of a three-level atom in a cascade configuration with both transitions coupled to a single structured reservoir of quantized field modes is treated using Laplace transform methods applied to the coupled amplitude equations. Results are also obtained from master equations by two different approaches, that is, involving either pseudomodes or quasimodes. Two different types of reservoir are considered, namely a high-Q cavity and a photonic band-gap system, in which the respective reservoir structure functions involve Lorentzians. Non-resonant transitions are included in the model. In all cases non-Markovian behaviour for the atomic system can be found, such as oscillatory decay for the high-Q cavity case and population trapping for the photonic band-gap case. In the master equation approaches, the atomic system is augmented by a small number of pseudomodes or quasimodes, which in the quasimode approach themselves undergo Markovian relaxation into a flat reservoir of continuum quasimodes. Results from these methods are found to be identical to those from the Laplace transform method including two-photon excitation of the reservoir with both emitting sequences. This shows that complicated non-Markovian decays of an atomic system into structured EM field reservoirs can be described by Markovian models for the atomic system coupled to a small number of pseudomodes or quasimodes.
Quantum entanglement in nuclear Cooper pair tunneling with $γ$-rays
Creators: name: Potel, G.
name: Barranco, F.
name: Vigezzi, E.
name: Broglia, R. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: While Josephson-like junctions, transiently established in heavy ion collisions ($τ_{coll}\approx10^{-21}$ s) between superfluid nuclei --through which Cooper pair tunneling ($Q$-value $Q_{2n}$) proceeds mainly in terms of successive transfer of entangled nucleons-- is deprived from the macroscopic aspects of a supercurrent, it displays many of the special effects associated with spontaneous symmetry breaking in gauge space (BCS condensation), which can be studied in terms of individual quantum states and of tunneling of single Cooper pairs. From the results of studies of one- and two- neutron transfer reactions carried out at energies below the Coulomb barrier we estimate the value of the mean square radius (correlation length) of the nuclear Cooper pair. A quantity related to the largest distance of closest approach for which the absolute two-nucleon tunneling cross section is of the order of the single-particle one. Furthermore, emission of $γ$-rays of (Josephson) frequency $ν_J=Q_{2n}/h$ distributed over an energy range $\hbar/τ_{coll}$ is predicted.