cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Conditional HI mass functions and the HI-to-halo mass relation in the local Universe
Creators: name: Li, Xiao
name: Li, Cheng
name: Mo, H. J.
name: Xiao, Ting
name: Wang, Jing
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a new HI mass estimator which relates the HI-to-stellar mass ratio to four galaxy properties: stellar surface mass density, color index $u-r$, stellar mass and concentration index, with the scatter of individual galaxies around the mean HI mass modeled with a Gaussian distribution. We calibrate the estimator using the xGASS sample, including both HI detection and non-detection, and constrain the model parameters through Bayesian inferences. Tests with mock catalogs demonstrate that our estimator provides unbiased HI masses for optical samples like the SDSS, thus suitable for statistical studies of HI gas contents in galaxies and dark matter halos. We apply our estimator to the SDSS spectroscopic sample to estimate the local HI mass function (HIMF), the conditional HI mass function (CHIMF) in galaxy groups and the HI-halo mass (HIHM) relation. Our HIMF agrees with the ALFALFA measurements at $M_{HI}\gtrsim 5\times 10^9M_{\odot}$, but with higher amplitude and a steeper slope at lower masses. We show that this discrepancy is caused primarily by the cosmic variance which is corrected for the SDSS sample but not for the ALFALFA. The CHIMFs for all halo masses can be described by a single Schechter function, and this is true for red, blue and satellite galaxies. For central galaxies the CHIMFs show a double-Gaussian profile, with the two components contributed by the red and blue galaxies, respectively. The total HI mass in a group increases monotonically with halo mass. The HI mass of central galaxies in galaxy groups increases rapidly with halo mass only at $M_h\lesssim10^{12}M_{\odot}$, while the mass dependence becomes much weaker at higher halo masses. The observed HI-halo mass relation is not reproduced by current hydrodynamic simulations and semi-analytic models of galaxy formation.
description: 10 figures, 2 tables, published in ApJ. $\mathbf{Note}$ : The version published in ApJ has a typo. In the last paragraph of section 3.2, the maximum posterior value of c_a should be c_a = 0.10 \pm 0.08, not c_a = 0.16 \pm 0.10
Current-activity versus local-current fluctuations in driven flow with exclusion
Creators: name: de Queiroz, S. L. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider fluctuations of steady-state current activity, and of its dynamic counterpart, the local current, for the one-dimensional totally asymmetric simple exclusion process. The cumulants of the integrated activity behave similarly to those of the local current, except that they do not capture the anomalous scaling behavior in the maximal-current phase and at its boundaries. This indicates that the systemwide sampling at equal times, characteristic of the instantaneous activity, overshadows the subtler effects which come about from non-equal time correlations, and are responsible for anomalous scaling. We show that apparently conflicting results concerning asymmetry (skewness) of the corresponding distributions can in fact be reconciled, and that (apart from a few well-understood exceptional cases) for both activity and local current one has positive skew deep within the low-current phase, and negative skew everywhere else.
description: 9 pages, 10 figures (published version)
Parametric scaling of power exhaust in EU-DEMO alternative divertor simulations
Creators: name: Järvinen, A. E.
name: Aho-Mantila, L.
name: Lunt, T.
name: Subba, F.
name: Rubino, G.
name: Xiang, L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Investigations of parametric scaling of power exhaust in the alternative divertor configuration (ADC) SOLPS-ITER simulation database of the EU-DEMO are conducted and compared to predictions based on the Lengyel model. The Lengyel model overpredicts the necessary argon concentrations for LFS divertor detachment by about a factor of 5-10 relative to the SOLPS-ITER simulations. Therefore, while the Lengyel model predicts that plasmas with accetable divertor heat loads in EU-DEMO would exceed the tolerable upstream impurity concentrations by a large margin, there are several SOLPS-ITER solutions within an acceptable operational space. The SOLPS-ITER simulations indicate that, unlike assumed by the standard Lengyel model, there are significant heat dissipation mechanisms other than argon radiation, such as cross-field transport, that reduce the role of argon radiation by a factor of 2 to 3. Furthermore, the Lengyel model assumes that the radiation front is powered by parallel heat conduction only, which tends to lead to a narrow radiation front as the radiative efficiency increases strongly with reducing thermal conductivity. As a result, the radiative volume and total impurity radiation are suppressed for a given impurity concentration. However, the SOLPS-ITER simulations indicate that other mechanisms, such as cross-field transport, can compete with parallel heat conduction within the radiative front and increase the radiative volume. Due to these findings, usage of the standard Lengyel model for analyzing scaling between divertor conditions and configurations for devices such as EU-DEMO is strongly discouraged.
Raw sequences of archaea and bacteria in the animal gut
Creators: name: Thomas, Courtney
name: Desmond-Le Quemener, Elie
name: Gribaldo, Simonetta
name: Borrel, Guillaume
Publisher: name: Zenodo
Year: 2021

description: 16S rRNA gene sequences of archaea and bacteria in animal gut/feces. They were amplified with archaeal-specific and universal primers, and sequenced with Miseq sequencer (2x300bp kit).
H. E. Janssen, Gräfin Anna von Ostfriesland - eine hochadlige Frau der späten Reformationszeit (1540/42-1575). Ein Beitrag zu den Anfängen der reformierten Konfessionalisierung im Reich, 1998
Creators: name: Heissler, S.
Publisher: name: Francia
Year: 2019

description: Francia, Bd. 27 Nr. 2 (2000)
An Edge Architecture Oriented Model Predictive Control Scheme for an Autonomous UAV Mission
Creators: name: Seisa, Achilleas Santi
name: Satpute, Sumeet Gajanan
name: Lindqvist, Björn
name: Nikolakopoulos, George
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this article the implementation of a controller and specifically of a Model Predictive Controller (MPC) on an Edge Computing device, for controlling the trajectory of an Unmanned Aerial Vehicle (UAV) model, is examined. MPC requires more computation power in comparison to other controllers, such as PID or LQR, since it use cost functions, optimization methods and iteratively predicts the output of the system and the control commands for some determined steps in the future (prediction horizon). Thus, the computation power required depends on the prediction horizon, the complexity of the cost functions and the optimization. The more steps determined for the horizon the more efficient the controller can be, but also more computation power is required. Since sometimes robots are not capable of managing all the computing process locally, it is important to offload some of the computing process from the robot to the cloud. But then some disadvantages may occur, such as latency and safety issues. Cloud computing may offer "infinity" computation power but the whole system suffers in latency. A solution to this is the use of Edge Computing, which will reduce time delays since the Edge device is much closer to the source of data. Moreover, by using the Edge we can offload the demanding controller from the UAV and set a longer prediction horizon and try to get a more efficient controller.
description: 7 pages, 13 figures, isie 2022
Edge Computing Architectures for Enabling the Realisation of the Next Generation Robotic Systems
Creators: name: Seisa, Achilleas Santi
name: Damigos, Gerasimos
name: Satpute, Sumeet Gajanan
name: Koval, Anton
name: Nikolakopoulos, George
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Edge Computing is a promising technology to provide new capabilities in technological fields that require instantaneous data processing. Researchers in areas such as machine and deep learning use extensively edge and cloud computing for their applications, mainly due to the significant computational and storage resources that they provide. Currently, Robotics is seeking to take advantage of these capabilities as well, and with the development of 5G networks, some existing limitations in the field can be overcome. In this context, it is important to know how to utilize the emerging edge architectures, what types of edge architectures and platforms exist today and which of them can and should be used based on each robotic application. In general, Edge platforms can be implemented and used differently, especially since there are several providers offering more or less the same set of services with some essential differences. Thus, this study addresses these discussions for those who work in the development of the next generation robotic systems and will help to understand the advantages and disadvantages of each edge computing architecture in order to choose wisely the right one for each application.
description: 7 pages, 4 figures, med 2022
QuickHeapsort: Modifications and improved analysis
Creators: name: Diekert, Volker
name: Weiss, Armin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences
subject: F.2.2

description: We present a new analysis for QuickHeapsort splitting it into the analysis of the partition-phases and the analysis of the heap-phases. This enables us to consider samples of non-constant size for the pivot selection and leads to better theoretical bounds for the algorithm. Furthermore we introduce some modifications of QuickHeapsort, both in-place and using n extra bits. We show that on every input the expected number of comparisons is n lg n - 0.03n + o(n) (in-place) respectively n lg n -0.997 n+ o (n). Both estimates improve the previously known best results. (It is conjectured in Wegener93 that the in-place algorithm Bottom-Up-Heapsort uses at most n lg n + 0.4 n on average and for Weak-Heapsort which uses n extra-bits the average number of comparisons is at most n lg n -0.42n in EdelkampS02.) Moreover, our non-in-place variant can even compete with index based Heapsort variants (e.g. Rank-Heapsort in WangW07) and Relaxed-Weak-Heapsort (n lg n -0.9 n+ o (n) comparisons in the worst case) for which no O(n)-bound on the number of extra bits is known.
Morse theory for Lagrange multipliers and adiabatic limits
Creators: name: Schecter, Stephen
name: Xu, Guangbo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geometric Topology (math.GT)
subject: Dynamical Systems (math.DS)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 57R70, 37D15

description: Given two Morse functions $f, μ$ on a compact manifold $M$, we study the Morse homology for the Lagrange multiplier function on $M \times {\mathbb R}$ which sends $(x, η)$ to $f(x) + ημ(x)$. Take a product metric on $M \times {\mathbb R}$, and rescale its ${\mathbb R}$-component by a factor $λ^2$. We show that generically, for large $λ$, the Morse-Smale-Witten chain complex is isomorphic to the one for $f$ and the metric restricted to ${μ^{-1}(0)}$, with grading shifted by one. On the other hand, let $λ\to 0$, we obtain another chain complex, which is geometrically quite different but has the same homology as the singular homology of $μ^{-1}(0)$ and the isomorphism between them is provided by the homotopy by varying $λ$. Our proofs contain both the implicit function theorem on Banach manifolds and geometric singular perturbation theory.
description: v3. 39 pages, published version, 4 figures. v2: 38 pages, 4 figures. Removed the last section of the previous version, improved literature
Self-reported Hepatitis 'A' immunisation amongst child care workers in the Bundaberg Region
Creators: name: Fleming, P
Publisher: name: CQUniversity
Year: 2017
Subjects: classificationCode: 420601
subject: Community child health

description: This study carries forward the exploration of the need for additional initiatives to enhance vaccination uptake against hepatitis A infection in child care workers in the Bundaberg region. The purpose of this quantitative study was to identify the self reported hepatitis A immunisation levels amongst workers in long day care (LDC) centres. The study set out to evaluate by survey, the awareness levels of National Health and Medical Research Council (NHMRC) recommendations for hepatitis A immunisation of workers, compare reported hepatitis A levels with self reported hepatitis B immunisation levels and centre practices in relation to policy, record keeping and centre director and worker risk perception. The study was conducted as a confidential postal survey between July and September 1999, by purposive sampling with questionnaires of 163 workers and 15 centre directors. Although a majority believed their occupational situation placed them at increased risk, only 34.3% of workers were immunised against hepatitis A. Changing nappies of children on a weekly basis was reported by 72.4%. While twice as many for hepatitis B than hepatitis A, only half had subsequently undertaken serological testing to confirm hepatitis B post-vaccination immunity. Most workers perceived their occupation placed them at increased risk of infection and were aware of NHMRC recommendations for immunisation, but failed to translate this to vaccination uptake against hepatitis A. Only one centre reported a policy for staff immunisation, while 93% had policies for children. Record keeping was reportedly inconsistent across surveyed centres, with irregular updating and identified a need for further policy and educational and training initiatives for improvements at regional LDC centres. Findings confirm a lack of awareness of NHMRC recommendations. The study suggests a continuing misconception of greater risk of hepatitis B than hepatitis A. Approximately 25% of surveyed workers were in favour of either free immunisation or some form of government or employer subsidised immunisation program for child care staff. This dissertation established a set of regional data on current hepatitis A awareness and self reported immunisation levels in LDC centres.
Inhaltsverzeichnis
Creators: name: Redaktion, Die
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: -
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 22 (1990): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Wie "Menimane" in Mainz : Zu einer neugefundenen frührömischen Sitzstatue aus Trier
Creators: name: Goethert-Polaschek, Karin
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 44 (2012): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Chern and Majorana Modes of Quasiperiodic Systems
Creators: name: Satija, Indubala I
name: Naumis, Gerardo G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: New types of self-similar states are found in quasiperiodic systems characterized by topological invariants-- the Chern numbers. We show that the topology introduces a competing length in the self-similar band edge states transforming peaks into doublets of size equal to the Chern number. This length intertwines with the quasiperiodicity and introduces an intrinsic scale, producing Chern-beats and nested regions where the fractal structure becomes smooth. Cherns also influence the zero-energy mode, that for quasiperiodic systems which exhibit exponential localization, is related to the ghost of the Majorana; the delocalized state at the onset to topological transition. The Chern and the Majorana, two distinct types of topological edge modes, exist in quasiperiodic superconducting wires.
description: Revised version
Association of Life Orientation Index and Parameters of Emotional Intelligence in University Students: A Data Mining Approach.
Creators: name: Gkintoni, Evgenia
name: Halkiopoulos, Constantinos
name: Antonopoulou, Hera
name: Georgiadi, Maria
name: Plexousakis, Stefanos
Publisher: name: Zenodo
Year: 2019
Subjects: Life Orientation
Emotional Intelligence
Data Mining

description: Background and aims.– Life Orientation is aimed at developing and engaging young adults in personal, psychological, neurocognitive, motor, physical, moral, spiritual, cultural and socio-economic areas, so that they can achieve their full potential in order to success in future life. The aim of the present study is to assess individual differences in generalized optimism versus pessimism in the index of life orientation and parameters of emotional intelligence in a sample of university students through application of data mining methods. Methods.– The sample comprised 300 university students, males and females, aged 18-30 years and assessed using self-administered questionnaires. The 10-item version of Life Orientation Test Revised (LOT-10), and the Trait Emotional Intelligence Questionnaire (TEIQue). The methodology adopted, in first phase consists of electronic questionnaires, which were created and posted through the website http://www.cicos.gr. Subsequently data were collected and preprocessed from the questionnaires and then introduced into the R (Programming Language and Machine Learning Platform) for analysis and extraction of useful knowledge. Results.– More specifically, through using classification algorithms (C4.5) there was a production of prospectively decision trees. Furthermore, clustering technique (K-Means algorithm), was applied and the parameters of the algorithm were set, depending on the application cases and the respondents were classified into clusters based on the items of the two scales. Conclusions.– The results indicateamongothers, that the use of Data Mining methods is an important tool to export and receive the conclusions and decisions especially in the field of psychological assessment and in mental health.
Einlage einer Glaskameo-Fibel aus Bitburg, Eifelkreis Bitburg-Prüm
Creators: name: Heimerl, Ferdinand
name: Thiel, Marcus
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 48 (2016): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
The multi-dimensional Hamiltonian Structures in the Whitham method
Creators: name: Maltsev, Andrei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we consider the averaging of local field-theoretic Poisson brackets in the multi-dimensional case. As a result, we construct a local Poisson bracket for the regular Whitham system in the multidimensional situation. The procedure is based on the procedure of averaging of local conservation laws and follows the Dubrovin - Novikov scheme of the bracket averaging suggested in one-dimensional case. However, the features of the phase space of modulated parameters in higher dimensions lead to a different natural class of the averaged brackets in comparison with the one-dimensional situation. Here we suggest a direct procedure of construction of the bracket for the Whitham system for $d > 1$ and discuss the conditions of applicability of the corresponding scheme. At the end, we discuss canonical forms of the averaged Poisson bracket in the multidimensional case.
description: 60 pages, latex, The article represents the technique and methods developed in the paper arXiv:1203.5732, applied to the multi-dimensional case
Trier-Euren, Ausgrabung "Moselschleuse" : Besiedlung der Spätbronzezeit und der jüngeren Eisenzeit und römisches Gräberfeld
Creators: name: Löhr, Hartwig
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: Funde und Ausgrabungen im Bezirk Trier, Bd. 49 (2017): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Lifshitz Transition in the Two Dimensional Hubbard Model
Creators: name: Chen, Kuang-Shing
name: Meng, Zi Yang
name: Pruschke, Thomas
name: Moreno, Juana
name: Jarrell, Mark
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using large-scale dynamical cluster quantum Monte Carlo simulations, we study the Lifshitz transition of the two dimensional Hubbard model with next-nearest-neighbor hopping ($t'$), chemical potential and temperature as control parameters. At $t'\le0$, we identify a line of Lifshitz transition points associated with a change of the Fermi surface topology at zero temperature. In the overdoped region, the Fermi surface is complete and electron-like; across the Lifshitz transition, the Fermi surface becomes hole-like and develops a pseudogap. At (or very close to) the Lifshitz transition points, a van Hove singularity in the density of states crosses the Fermi level. The van Hove singularity occurs at finite doping due to correlation effects, and becomes more singular when $t'$ becomes more negative. The resulting temperature dependence on the bare d-wave pairing susceptibility close to the Lifshitz points is significantly different from that found in the traditional van Hove scenarios. Such unambiguous numerical observation of the Lifshitz transition at $t'\le0$ extends our understanding of the quantum critical region in the phase diagram, and shines lights on future investigations of the nature of the quantum critical point in the two dimensional Hubbard model.
description: 9 pages, 8 figures, accepted for publication in Physics Review B
In memoriam Dr. Karl-Josef Gilles (1950-2018)
Creators: name: Schwinden, Lothar
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 49 (2017): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Modelling the efficacy of hyperthermia treatment
Creators: name: Rybiński, Mikołaj
name: Szymańska, Zuzanna
name: Lasota, Sławomir
name: Gambin, Anna
Publisher: name: arXiv
Year: 2012
Subjects: subject: Subcellular Processes (q-bio.SC)
subject: FOS: Biological sciences
subject: J.3

description: Multimodal oncological strategies which combine chemotherapy or radiotherapy with hyperthermia have a potential of improving the efficacy of the non-surgical methods of cancer treatment. Hyperthermia engages the heat-shock response mechanism (HSR), main component of which are heat-shock proteins (HSP). Cancer cells have already partially activated HSR, thereby, hyperthermia may be more toxic to them relative to normal cells. On the other hand, HSR triggers thermotolerance, i.e. hyperthermia treated cells show an impairment in their susceptibility to a subsequent heat-induced stress. This poses questions about efficacy and optimal strategy of the anti-cancer therapy combined with hyperthermia treatment. To address these questions, we adapt our previous HSR model and propose its stochastic extension. We formalise the notion of a HSP-induced thermotolerance. Next, we estimate the intensity and the duration of the thermotolerance. Finally, we quantify the effect of a multimodal therapy based on hyperthermia and a cytotoxic effect of bortezomib, a clinically approved proteasome inhibitor. Consequently, we propose an optimal strategy for combining hyperthermia and proteasome inhibition modalities. In summary, by a proof of concept mathematical analysis of HSR we are able to support the common belief that the combination of cancer treatment strategies increases therapy efficacy. thermotolerance.
description: Based on results published in first authors PhD thesis (2012). In contrast to the original text most of the technical stuff has been moved to supplementary material ("file_si-termotolerancja.pdf"), plus many other minor improvements and additions have been done. Latest version includes minor revisions and improvements such as expansion of methods section and fig. 5 in the main text
The potential for variable range of motion training to optimise functional performance
Creators: name: Clark, Ross
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 420799
subject: Sports science and exercise not elsewhere classified

description: "Although full range of motion (ROM) resistance training is a successful method of enhancing force potential, it does possess a number of limitations such as terminal deceleration and the countermovement occurring at the same position during all repetitions. In an effort to overcome these drawbacks, this thesis explored the effects of variable range of motion (VROM) resistance training on neuromuscular performance, activation and muscle architecture. This method of training involves the countermovement position occurring in a different ROM for each set. Experiment 1 consisted of a study examining the load lifted, force produced and concentric workload during a VROM training session. The findings of this study suggested that VROM training results in increased peak force levels as the training ROM decreased, a potential foundation for enhanced longitudinal performance benefits. A potential mechanism for these proposed gains in response to VROM training appeared to be a change in muscle architecture. Therefore, Experiment 2 examined the relationship between muscle architecture and upper body pressing strength and power in 30 professional rugby league players. The results of this study revealed that while changes in pennation angle were originally believed to be a potential mechanism for performance gains in response to VROM training, the limited relationship between this variable and function suggested otherwise. Finally, Experiment 3 examined the effect of VROM training on strength, power, neuromuscular activation and muscle architecture in 22 professional rugby league players. The results of this final study revealed that VROM training produced enhanced full ROM ballistic performance and isokinetic strength towards the terminal phase of the bench press movement. These findings suggest that a VROM training program provides superior performance gains in subjects with extensive resistance training experience, and is therefore a worthy addition to a high level athletes training program." -- abstract
Vom keltischen Oppidum zum römischen Vicus : Geomagnetische Untersuchungen in Kastel-Staadt, Kreis Trier-Saarburg
Creators: name: Mischka, Doris
name: Mischka, Carsten
name: Buchhorn, Anna-Sophie
name: Henrich, Peter
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 49 (2017): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Deriving the velocity distribution of Galactic Dark Matter particles from rotation curve data
Creators: name: Bhattacharjee, Pijushpani
name: Chaudhury, Soumini
name: Kundu, Susmita
name: Majumdar, Subhabrata
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The velocity distribution function (VDF) of the hypothetical Weakly Interacting Massive Particles (WIMPs), currently the most favored candidate for the Dark Matter (DM) in the Galaxy, is determined directly from the circular speed ("rotation") curve data of the Galaxy assuming isotropic VDF. This is done by "inverting" --- using Eddington's method --- the Navarro-Frenk-White universal density profile of the DM halo of the Galaxy, the parameters of which are determined, by using Markov Chain Monte Carlo (MCMC) technique, from a recently compiled set of observational data on the Galaxy's rotation curve extended to distances well beyond the visible edge of the disk of the Galaxy. The derived most-likely local isotropic VDF strongly differs from the Maxwellian form assumed in the "Standard Halo Model" (SHM) customarily used in the analysis of the results of WIMP direct-detection experiments. A parametrized (non-Maxwellian) form of the derived most-likely local VDF is given. The astrophysical "g-factor" that determines the effect of the WIMP VDF on the expected event rate in a direct-detection experiment can be lower for the derived most-likely VDF than that for the best Maxwellian fit to it by as much two orders of magnitude at the lowest WIMP mass threshold of a typical experiment.
description: Latex 5 pages, 5 Figures; revised version -- title changed, typos fixed, Figure 3 changed for better visualization, all Figures now in black and white, results and conclusions unchanged; version accepted for publication in Phys. Rev. D
"Shut the gate": A social history of beef cattle exhibiting at the Mackay Show and its relationship to the region's beef industry
Creators: name: Maybanks, Andrew
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 450599
subject: Aboriginal and Torres Strait Islander peoples, society and community not elsewhere classified

description: "Shut the Gate" was a project initiated and sponsored by the Beef Cattle sub-Committee of the Mackay and District Agricultural, Pastoral and Industrial Association Inc., in collaboration with Central Queensland University. Its goal was to research, write and publish an attractive, engaging and informative account of the history of cattle showing in Mackay, with particular emphasis on the relationship between the regional industry and the 123 year old annual Mackay Show. While the project throws considerable light on the influence that cattle showing has had on the development ofthe beef industry, and the important role it plays in generating and maintaining a positive awareness of the industry among town folk, it is essentially about people. The book celebrates the trials, tribulations and triumphs of those who breed, raise, and compete with beef cattle in the Mackay district. "Shut the Gate" was a commissioned work, with the Beef Cattle sub-Committee its primary sponsor. The essential brief was to prepare 'a readable social history' for possible publication. This in effect meant that the book needed to be written in a style accessible to its anticipated target audience, such as participants in the beef industry, rural primary producers, regular patrons of the Mackay Show, and local history enthusiasts. Its content and tone therefore, reflects this audience. It is a work ofacademic scholarship presented in the form of a textually accessible local history that is not only informative but also a pleasurable experience for the intended reader. The book is introduced by a dissertation that reflects on the research and writing process.
The Bernstein-von Mises theorem and nonregular models
Creators: name: Bochkina, Natalia A.
name: Green, Peter J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We study the asymptotic behaviour of the posterior distribution in a broad class of statistical models where the "true" solution occurs on the boundary of the parameter space. We show that in this case Bayesian inference is consistent, and that the posterior distribution has not only Gaussian components as in the case of regular models (the Bernstein-von Mises theorem) but also has Gamma distribution components whose form depends on the behaviour of the prior distribution near the boundary and have a faster rate of convergence. We also demonstrate a remarkable property of Bayesian inference, that for some models, there appears to be no bound on efficiency of estimating the unknown parameter if it is on the boundary of the parameter space. We illustrate the results on a problem from emission tomography.
description: Published in at http://dx.doi.org/10.1214/14-AOS1239 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Anisotropic gap structure and sign reversal symmetry in monolayer Fe(Se,Te)
Creators: name: Li, Yu
name: Shen, Dingyu
name: Kreisel, Andreas
name: Chen, Cheng
name: Wei, Tianheng
name: Xu, Xiaotong
name: Wang, Jian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The iron-based superconductors are an ideal platform to reveal the enigma of the unconventional superconductivity and potential topological superconductivity. Among them, the monolayer Fe(Se,Te)/SrTiO3(001), which is proposed to be topological nontrivial, shows interface-enhanced high-temperature superconductivity in the two dimensional limit. However, the experimental studies on the superconducting pairing mechanism of monolayer Fe(Se,Te) films are still limited. Here, by measuring quasiparticle interference in monolayer Fe(Se,Te)/SrTiO3(001), we report the observation of the anisotropic structure of the large superconducting gap and the sign change of the superconducting gap on different electron pockets. The results are well consistent with the 'bonding-antibonding' s+- wave pairing symmetry driven by spin fluctuations in conjunction with spin-orbit coupling. Our work is of basic significance not only for a unified superconducting formalism in the iron-based superconductors, but also for understanding of topological superconductivity in high-temperature superconductors.
Prevalence and diagnosis of the etiologic agents of pyrexia of unknown origin in the Central Queensland Region
Creators: name: Lowe, PJ
Publisher: name: CQUniversity
Year: 2017
Subjects: classificationCode: 320220
subject: Pathology (excl. oral pathology)

description: Pyrexia is an illness of unknown origin where people suffer unexplained fevers, headaches and fatigue. This study was undertaken to ascertain the prevalence of agents which may be associated with pyrexia in the Central Queensland region. Illnesses researched include Ross River Virus, Leptospirosis, Barmah Forest Virus, Brucellosis, Lyme Borrelosis and Streptococcal infections. A study was undertaken to ascertain the prevalence of agents which may be associated with pyrexia in the Central Queensland region. Five hundred and twenty four patient sera submitted to the laboratory from January 1991 to December 1992 for Ross River virus serology were also assayed by serological methods for evidence of exposure to Barmah Forest virus, flaviviruses, spotted fever group rickettsia, brucella, leptospirosis and lyme borrelosis. Titres of streptococcal antibodies and rheumatoid factor were also measured. Accompanying request forms were analysed for relevant clinical history and any additional pathology testing requests were noted. Ross River virus antibodies (IgG and/ or IgM) were found in 38.9% of patient sera. Males were significantly associated with the presence of antibodies (IgG and/or IgM) (P < 0.05) but females were 1.73 times as likely to have detectable IgM antibody at presentation. This suggests that females may be more symptomatic in the initial stages of infection and thus seek medical intervention. Flavivirus antibodies (IgG) were found in 19.79% of patient sera. One sample also contained IgM antibodies which reacted with both Kunjin and Alfuy viruses. Barmah Forest virus antibodies (IgG and/or IgM) were detected in 8% of patient sera. IgM antibody was detected in three patients, two of whom also had Ross River virus IgM antibody. Antibodies (IgG and/or IgM) to the spotted fever group of rickettsia were detected in 3.8% of patients. Lyme borrelosis antibodies (IgG) were detected in 1.7% of patients. A single case of brucellosis was diagnosed but no evidence of exposure to leptospiras was found. Raised streptococcal antibody titres were found in 27.1% of patient sera. Rheumatoid factor was detected in 4.696 of patient sera. A full blood count, erythrocyte sedimentation rate and rheumatoid factor determination were the most commonly requested additional pathology tests. Clinical history was provided on only 56.1% of request forms. These results have implications for future testing protocols. Diagnostic problems associated with serological testing on single serum samples were noted.
Theory of Half-Metallic Double Perovskites I: Double Exchange Mechanism
Creators: name: Meetei, O. Nganba
name: Erten, Onur
name: Mukherjee, Anamitra
name: Randeria, Mohit
name: Trivedi, Nandini
name: Woodward, Patrick
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The double perovskite material \SFMO has the rare and desirable combination of a half-metallic ground state with 100% spin polarization and ferrimagnetic \Tc$\simeq 420$K, well above room temperature. In this two-part paper, we present a comprehensive theoretical study of the magnetic and electronic properties of half metallic double perovskites. In this paper we present exact diagonalization calculations of the "fast" Mo electronic degrees coupled to "slow" Fe core spin fluctuations treated by classical Monte Carlo techniques. From the temperature dependence of the spin-resolved density of states, we show that the electronic polarization at the chemical potential is proportional to magnetization as a function of temperature. We also consider the effects of disorder and show that excess Fe leaves the ground state half-metallic while anti-site disorder greatly reduces the polarization. In a companion paper titled "Theory of Half-Metallic Double Perovskites II: Effective Spin Hamiltonian and Disorder Effects", we derive an effective classical spin Hamiltonian that provides a new framework for understanding the magnetic properties of half-metallic double perovskites including the effects of disorder. Our results on the dependence of the spin polarization on temperature and disorder has important implications for spintronics.
Studies on cartilage-derived inhibitors of angiogenesis
Creators: name: Qiu, X
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 420899
subject: Traditional, complementary and integrative medicine not elsewhere classified

description: "This work arose from anecdotal evidence for the existence of anti-angiogenic factors in shark cartilage powders. The project aimed to elucidate the mechanisms of anti-angiogenesis of shark cartilage, identify at least one novel anti-angiogenic factor from shark cartilage, and search for other natural anti-angiogenic factors in cartilage of other species." -- abstract.. This work arose from anecdotal evidence for the existence of anti-angiogenic factors in shark cartilage powders. The project aimed to elucidate the mechanisms of anti-angiogenesis of shark cartilage, identify at least one novel anti-angiogenic factor from shark cartilage, and search for other natural anti-angiogenic factors in cartilage of other species. The goals of the work have been successfully achieved. Firstly, a large number of commercially available shark cartilage powders have been investigated and it was found that 22% of samples tested showed no anti-angiogenic activity (CAM assay), while the remaining 78% showed variable anti-angiogenic activity. Secondly, cartilage from other species including emu, ostrich, deer, camel, crocodile and kangaroo have been investigate, and most were found to be bioactive in anti-angiogenesis. The screening potency of the bioactive agents not only varied between different cartilage depots in the one species but also varied between species. Bioactive fractions comparable in activity to those of shark were obtained from crocodile ischeum. In contrast, cartilage fractions obtained from the ostrich sternum and camel nasal septum did not show any anti-angiogenic activities. Mammalian representatives (deer, camel and kangaroo) in this study all had cartilage depots which provided variable bioactivity. Kangaroo rib and camel ear seem likely to be promising substitutes for shark cartilage if considering the efficiency of cartilage collection and availability and together with potency. Thirdly, mechanisms of anti-angiogenesis of shark cartilage have been investigated, it was found that shark cartilage inhibits angiogenesis on CAM by blocking heparin-binding of bFGF with heparin sulfate proteoglycans (HSPGs) on the surface of endothelial cells involving nitric oxide (NO). Finally, two active fractions have been isolated from shark cartilage, high anti-angiogenic activity has been shown in the bioassay, two proteins purified from these two active fractions were demonstrated on SDS-PAGE. The implications of these findings in terms of further scientific research and the cartilage trade are discussed_
Evi Gorogianni / Peter Pavúk / Luca Girella (Hrsg.), Beyond Thalassocracies
Creators: name: Traunmüller, Sebastian
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: Rezension zu: Evi Gorogianni / Peter Pavúk / Luca Girella (Hrsg.), Beyond Thalassocracies. Understanding Processes of Minoanisation and Mycenaeanisation in the Aegean. Oxbow Books, Oxford 2016. ISBN 978-1-78570-203-7. xi + 240 Seiten
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 96 2018(2019)
Geophysical and geochemical constraints on geoneutrino fluxes from Earth's mantle
Creators: name: Šrámek, Ondřej
name: McDonough, William F.
name: Kite, Edwin S.
name: Lekić, Vedran
name: Dye, Steve
name: Zhong, Shijie
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geophysics (physics.geo-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Knowledge of the amount and distribution of radiogenic heating in the mantle is crucial for understanding the dynamics of the Earth, including its thermal evolution, the style and planform of mantle convection, and the energetics of the core. Although the flux of heat from the surface of the planet is robustly estimated, the contributions of radiogenic heating and secular cooling remain poorly defined. Constraining the amount of heat-producing elements in the Earth will provide clues to understanding nebula condensation and planetary formation processes in early Solar System. Mantle radioactivity supplies power for mantle convection and plate tectonics, but estimates of mantle radiogenic heat production vary by a factor of more than 20. Recent experimental results demonstrate the potential for direct assessment of mantle radioactivity through observations of geoneutrinos, which are emitted by naturally occurring radionuclides. Predictions of the geoneutrino signal from the mantle exist for several established estimates of mantle composition. Here we present novel analyses, illustrating surface variations of the mantle geoneutrino signal for models of the deep mantle structure, including those based on seismic tomography. These variations have measurable differences for some models, allowing new and meaningful constraints on the dynamics of the planet. An ocean based geoneutrino detector deployed at several strategic locations will be able to discriminate between competing compositional models of the bulk silicate Earth.
description: 34 pages, 6 tables, 5 figures, 2 supplementary figures; revised version submitted to Earth Planet. Sci. Lett
Direct cosmological inference from three-dimensional correlations of the Lyman-$α$ forest
Creators: name: Gerardi, Francesca
name: Cuceu, Andrei
name: Font-Ribera, Andreu
name: Joachimi, Benjamin
name: Lemos, Pablo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: When performing cosmological inference, standard analyses of the Lyman-$α$ (Ly$α$) three-dimensional correlation functions only consider the information carried by the distinct peak produced by baryon acoustic oscillations (BAO). In this work, we address whether this compression is sufficient to capture all the relevant cosmological information carried by these functions. We do this by performing a direct fit to the full shape, including all physical scales without compression, of synthetic Ly$α$ auto-correlation functions and cross-correlations with quasars at effective redshift $z_{\rm{eff}}=2.3$, assuming a DESI-like survey, and providing a comparison to the classic method applied to the same dataset. Our approach leads to a $3.5\%$ constraint on the matter density $Ω_{\rm{M}}$, which is about three to four times better than what BAO alone can probe. The growth term $f σ_{8} (z_{\rm{eff}})$ is constrained to the $10\%$ level, and the spectral index $n_{\rm{s}}$ to $\sim 3-4\%$. We demonstrate that the extra information resulting from our `direct fit' approach, except for the $n_{\rm{s}}$ constraint, can be traced back to the Alcock-Paczyński effect and redshift space distortion information.
description: Matches version published in MNRAS
Probing high-energy solar axion flux with a large scintillation neutrino detector
Creators: name: Lucente, Giuseppe
name: Nath, Newton
name: Capozzi, Francesco
name: Giannotti, Maurizio
name: Mirizzi, Alessandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We investigate the 5.49 MeV solar axions flux produced in the $p(d,\, ^{3}{\rm He})a$ reaction and analyze the potential to detect it with the forthcoming large underground neutrino oscillation experiment Jiangmen Underground Neutrino Observatory (JUNO). The JUNO detector could reveal axions through various processes such as Compton and inverse Primakoff conversion, as well as through their decay into two photons or electron-positron pairs inside the detector. We perform a detailed numerical analysis in order to forecast the sensitivity on different combinations of the axion-electron ($ g_{ae} $), axion-photon ($g_{aγ}$), and isovector axion-nucleon ($ g_{3aN} $) couplings, using the expected JUNO data for different benchmark values of axion mass in a model-independent way. We find that JUNO would improve by approximately one order of magnitude current bounds by Borexino and it has the best sensitivity among neutrino experiments.
description: 21 pages, 7 figures
Derived algebraic cobordism
Creators: name: Lowrey, Parker
name: Schürg, Timo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: Algebraic Topology (math.AT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 14F43, 14C40, 55N22

description: We construct a cohomology theory using quasi-smooth derived schemes as generators and an analogue of the bordism relation using derived fibre products as relations. This theory has pull-backs along all morphisms between smooth schemes independent of any characteristic assumptions. We prove that in characteristic zero, the resulting theory agrees with algebraic cobordism as defined by Levine and Morel. We thus obtain a new set of generators and relations for algebraic cobordism.
description: Comments welcome. 35 pages; v2: Changes following referee's suggestions;to appear in JIMJ