cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The influence of surveillance capitalism on educational technology adoption
Creators: name: Chu, Natalie Erin
Publisher: name: University of British Columbia
Year: 2024

description: Surveillance capitalism highlights an ongoing phenomenon where surveillance issues are being exacerbated by IT corporations. Critics of surveillance capitalism have supported legislation, such as the GDPR, that regulates behavioural data extraction by IT corporations and their translation of data into behavioural insight products that are procured by businesses. However, less focus has been directed to regulating the adoption and management of technologies by organizations, who are using the production of behavioural insights to help in their delivery of specialized products and services to individuals. My master’s thesis examines the adoption of educational technologies by post-secondary educational institutions in British Columbia, Canada (BC) to provide insights into practices and policies that address the issues perpetuated by surveillance capitalism. I collected qualitative data from 8 semi-structured interviews conducted with educational technology practitioners who have been affiliated with a post-secondary educational institution in BC. Grounded theory methodology is used to explore surveillance capitalism through the legislation, business practices, and technology innovations that have affected educational technology adoption. I developed a novel theory that addresses surveillance capitalism concerns resulting from the extraction and translation of student data into behavioural insight products by educational technology companies. My research offers a new perspective for examining surveillance issues that are faced by post-secondary educational institutions and offers management-level recommendations for reducing data privacy risks and promoting ethical considerations within educational technology adoption.
A Note on Unparticle Decays
Creators: name: Delgado, A.
name: Espinosa, J. R.
name: No, J. M.
name: Quirós, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The coupling of an unparticle operator O_U to Standard Model particles opens up the possibility of unparticle decays into standard model fields. We study this issue by analyzing the pole structure (and spectral function) of the unparticle propagator, corrected to account for one-loop polarization effects from virtual SM particles. We find that the propagator of a scalar unparticle (of scaling dimension 1 < d_U < 2) with a mass gap m_g develops an isolated pole, m_p^2-i m_p Gamma_p, with m_p^2 < m_g^2 below the unparticle continuum that extends above m_g (showing that the theory would be unstable without a mass gap). If that pole lies below the threshold for decay into two standard model particles the pole corresponds to a stable unparticle state (and its width Gamma_p is zero). For m_p^2 above threshold the width is non zero and related to the unparticle decay rate into Standard Model particles. This picture is valid for any value of d_U in the considered range.
description: 11 pages, 4 figures
Data and codes relating to the article "A mechanistic-statistical approach to infer dispersal and demography from invasion dynamics, applied to a plant pathogen".
Creators: name: Saubin, Méline
name: Coville, Jérome
name: Xhaard, Constance
name: Frey, Pascal
name: Soubeyrand, Samuel
name: Halkett, Fabien
name: Fabre, Frédéric
Publisher: name: Zenodo
Year: 2023
Subjects: 1-D colonisation
Dispersal kernel
Long-distance dispersal
Multiple data types
Population dynamic
Spatio-temporal model

description: The zip file contains data and codes relating to the article "A mechanistic-statistical approach to infer dispersal and demography from invasion dynamics, applied to a plant pathogen".
 All files were extracted from the public GitLab repository: https://gitlab.com/saubin.meline/mechanistic-statistical-model, on the date 2023-09-08. Please refer to this public GitLab repository for the latest version of the codes. This work was supported by grants from the French National Research Agency (ANR-09-BLAN-0145, Emile project; ANR-18-CE32-0001, Clonix2D project; ANR-14-CE25-0013, project NONLOCAL, ANR-11-LABX-0002-01, Cluster of Excellence Arbre; 20-PCPA-0002, Beyond project). Constance Xhaard was supported by a PhD fellowship from the French Ministry of Education and Research (MESR) and by Postdoc fellowship from the French National Research Agency (ANR-09-BLAN-0145, Emile project). Méline Saubin was supported by a PhD fellowship from INRAE and the French National Research Agency (ANR-18-CE32-0001, Clonix2D project).
Pole-based approximation of Fermi-Dirac function
Creators: name: Lin, Lin
name: Lu, Jianfeng
name: Ying, Lexing
name: Weinan, E
Publisher: name: arXiv
Year: 2009
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Two approaches for the efficient rational approximation of the Fermi-Dirac function are discussed: one uses the contour integral representation and conformal mapping and the other is based on a version of the multipole representation of the Fermi-Dirac function that uses only simple poles. Both representations have logarithmic computational complexity. They are of great interest for electronic structure calculations.
description: 16 pages, 8 figures, dedicated to Professor Andy Majda on the occasion of his 60th birthday
On a certain representation of the chromatic polynomial
Creators: name: Matiyasevich, Yu. V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C15

description: The representation is essentially the same as that given by J.P.Nagle in J. Comb. Theory (B), 1971, 10:1, 42--59. The distinction is in the definition of the weighting function via the number of flows. This new definition allows one to deduce a number of corollaries, in particular, the following. A) The chromatic polynomial of a connected planar graph G can be uniquely determined from its combinatory dual graph G^* (although the graph G itself isn't, in general, determined uniquely by G^*). B) If a planar graph G is different from the full graph K_3 and has exactly one (up to renaming of colors) proper coloring of vertices in three colors, then the graph G^* dual to graph G is also vertex colorable in three colors.
description: This is author's translation of his paper originally published in Russian
Quantum Energy Density of Cosmic Strings with Nonzero Radius
Creators: name: Koike, M.
name: Laquidain, X.
name: Graham, N.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Zero-point fluctuations in the background of a cosmic string provide an opportunity to study the effects of topology in quantum field theory. We use a scattering theory approach to compute quantum corrections to the energy density of a cosmic string, using the "ballpoint pen" and "flowerpot" models to allow for a nonzero string radius. For computational efficiency, we consider a massless field in $2+1$ dimensions. We show how to implement precise and unambiguous renormalization conditions in the presence of a deficit angle, and make use of Kontorovich-Lebedev techniques to rewrite the sum over angular momentum channels as an integral on the imaginary axis.
description: 12 pages, 9 .eps figures; v2: expanded discussion of sign and boundary behavior, added references and removed duplicate, slight improvements to numerics in figures, included covariant form of counterterm; v3: minor edits for style and notational consistency, version to be published in Phys Rev D; v4: fix minor typos; v5: correct figure file, fix typos
Fe and N self-diffusion in non-magnetic Fe:N
Creators: name: Gupta, M.
name: Gupta, A.
name: Gupta, R.
name: Stahn, J.
name: Horisberger, M.
name: Wildes, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Fe and N self-diffusion in non-magnetic FeN has been studied using neutron reflectivity. The isotope labelled multilayers, FeN/57Fe:N and Fe:N/Fe:15N were prepared using magnetron sputtering. It was remarkable to observe that N diffusion was slower compared to Fe while the atomic size of Fe is larger compared to N. An attempt has been made to understand the diffusion of Fe and N in non-magnetic Fe:N.
ისლამური ფუნდამენტალიზმი და მისი როლი ტერორიზმში (Islamic Fundamentalism and its Role in Terrorism)
Creators: name: Sitchinava, Bukhuti
name: Galdava, Mariam
Publisher: name: figshare
Year: 2021
Subjects: subject: 220403 Islamic Studies
subject: FOS: Philosophy, ethics and religion
subject: 210310 Middle Eastern and African History
subject: FOS: History and archaeology

description: Islamic fundamentalism, which is often associated with terrorism, is considered one of the challenges to international security. Developments in the 1970s have made it clear that religion still plays an important role in international relations, and that it influences global and regional political processes in various ways around the world. The conference paper will analyze the interrelatedness of Islamic fundamentalism and terrorism. The paper focuses on well-known forms of Islamic fundamentalism based on the Hanbali school in Sunni Islam, such as Wahhabism and Salafism. Within the topic, I will be discussing the early and modern understanding of jihad. Also, in the paper, I will elaborate on the alliance between the Islamic State of Iraq and the Levant and the Ba'athists. In the concluding part of the conference paper, I will be summarizing the threats and challenges posed by Islamic fundamentalism and terrorism that threaten world peace and security.
On the braiding of an Ann-category
Creators: name: Quang, Nguyen Tien
name: hanh, Dang Dinh
Publisher: name: arXiv
Year: 2009
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18D10

description: A braided Ann-category $\A$ is an Ann-category $\A$ together with the braiding $c$ such that $(\A, \otimes, a, c, (I,l,r))$ is a braided tensor category, and $c$ is compatible with the distributivity constraints. The paper shows the dependence of the left (or right) distributivity constraint on other axioms. Hence, the paper shows the relation to the concepts of {\it distributivity category} due to M. L. Laplaza and {\it ring-like category} due to A. Frohlich and C.T.C Wall. The center construction of an almost strict Ann-category is an example of an unsymmetric braided Ann-category.
description: 20 pages
ქურთები ირანის ისლამურ რესპუბლიკაში (The Kurds in Iran)
Creators: name: Sitchinava, Bukhuti
Publisher: name: figshare
Year: 2021
Subjects: subject: 210310 Middle Eastern and African History
subject: FOS: History and archaeology
subject: 160699 Political Science not elsewhere classified
subject: FOS: Political science
subject: History

description: ქურთების საკითხი ერთ-ერთ რთულ და გადაუჭრელ პრობლემად ითვლება ახლო აღმოსავლეთის რეგიონში. მიუხედავად იმისა, რომ ქურთები რეგიონში მრავალი საუკუნეა ცხოვრობენ, მათ დღემდე არ გააჩნიათ საკუთარი სახელმწიფო. სხვადასხვა სტატისტიკური მონაცემების მიხედვით მსოფლიოში 35-45 მილიონამდე ქურთია. რეგიონში ისინი წარმოდგენილნი არიან ოთხ სახელმწიფოში, ესენია: თურქეთი, ერაყი, სირია და ირანი. ირანში მცხოვრები ქურთები, რომლებიც სხვა დანარჩენი ქურთების მსგავსად ავტონომიის მოთხოვნით გამოდიან, ხშირად აწყდებიან წინააღმდეგობებს ირანის ხელისუფლების მხრიდან, რის გამოც მთავრობამ ეთნიკურ ნიადაგზე აღმოცენებული პარტიები და დაჯგუფებები საერთოდ აკრძალა ქვეყანაში. ავტონომიისა და დამოუკიდებლობის მოპოვების მიზნით, გასულ საუკუნეში, ირანში რამდენიმე ქურთული პოლიტიკური პარტია ჩამოყალიბდა. ისინი ავტონომიის მოპოვების გარდა ირანის დემოკრატიულ, სეკულარულ და ფედერაციულ სახელმწიფოდ გარდაქმნას უჭერენ მხარს. ქურთულ პოლიტიკურ პარტიებსა და დაჯგუფებებს მნიშვნელოვანი როლი აკისრიათ, რადგანაც ქურთული იდენტობის შენარჩუნება მათი აქტიური პოლიტიკური და სამხედრო საქმიანობის შედეგია. ირანელი ქურთების მიერ შექმნილი პარტიები თურქეთის, სირიისა და ერაყის ქურთულ დაჯგუფებებთან ერთად აქტიურად იბრძვიან ისლამური სახელმწიფოს წინააღმდეგ.

The Kurdish question is considered one of the most difficult and unresolved issues in the Middle East region. Although the Kurds have lived in this region for many centuries, they still do not have their own state. According to various statistics, there are 35-45 million Kurds scattered in the world. In the region, they are represented in four countries: Turkey, Iraq, Syria and Iran. Kurds living in Iran, who, like other Kurds, demand autonomy, often face resentment from the Iranian government, which is why the government has banned ethnic parties and groups in the country. To gain autonomy and independence, several Kurdish political parties were formed in Iran during the last century. Other than gaining autonomy, they also support the transformation of Iran into a democratic, secular and federal state. Kurdish political parties and groups play an important role as the preservation of Kurdish identity is the result of their strong engagement in political and military activities. The parties formed by Iranian Kurds, along with Kurdish groups in Turkey, Syria and Iraq, are actively fighting the Islamic State.
A family of second Lie algebra structures for symmetries of dispersionless Boussinesq system
Creators: name: Kiselev, Arthemy V.
name: van de Leur, Johan W.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: 17B62, 37K10, 37K30.

description: For the 3-component dispersionless Boussinesq-type system, we construct two compatible nontrivial finite deformations for the Lie algebra structure in the symmetry algebra.
description: 9 pages, includes Maple program
A botanical formulation for managing opioid withdrawal : study protocol and rationale for a multicentre feasibility randomized controlled trial
Creators: name: Kim, Ji-Hyun (Jane)
Publisher: name: University of British Columbia
Year: 2024

description: Frequent withdrawal is experienced by nearly all opioid dependent persons and is a powerful reason for sustained use. Currently, tapering of opioids is the main strategy for withdrawal management, which is associated with significant treatment dropout and patient dissatisfaction. A botanical formulation has been in use in Vietnam to support opiate detoxification under the tradename Heantos-4 (H-4) and licensed in Canada as a natural health product called Traditional Gastrointestinal Remedy (TGIR). TGIR is a non-opioid medication that controls nausea with both analgesic and sedative properties, with the potential to safely manage withdrawal from opioids with little side effects. This multicentre feasibility study and subsequent confirmatory interventional trial aim to evaluate the impact of TGIR on withdrawal management compared to the standard treatment of opioid tapering. In this two-site, open-label, parallel-group randomized controlled trial, 60 opioid-dependent adults seeking opioid withdrawal treatment will be allocated to receive either the experimental intervention of TGIR or as control, standard protocol for opioid tapering. The primary outcome will be feasibility and secondary efficacy outcomes will include retention in withdrawal treatment, dosing, craving, treatment satisfaction, and psychosocial stress. This study will provide evidence for the feasibility of a subsequent confirmatory interventional trial. Should the claims regarding comparable efficacy and safety to opioid tapering hold, TGIR can become an attractive alternative to standard opioid agonist treatments (OAT). TGIR can be used when opioid agonists are not available or preferred as a non-opioid alternative during detoxification, as well as to support patients who undergo withdrawal without professional help. Further, as a non-opioid solution, TGIR has no inherent overdose risk and low toxicity even at the highest effective dose, which enables community-based withdrawal management. This would improve patient-centered management of withdrawal and expand care for those with limited access to conventional treatment. The herbal compound TGIR, developed following the principles of Traditional Chinese Medicine, demonstrated promising retention rates with few side effects in Vietnam, and shows potential to become an effective non-opioid solution also in Europe and North America.
title: Lignes directrices pour les aires protégées à gouvernance privée
title: Lignes directrices pour les aires protégées à gouvernance privée
titleType: AlternativeTitle
Creators: name: Mitchell, Brent A.
name: Stolton, Sue
name: Union Internationale Pour La Conservation De La Nature Et De Ses Ressources
Publisher: name: Union internationale pour la conservation de la nature
Year: 2020

description: Autres auteurs : Bingham, Heather C. Cumming, Tracey L. Dudley, Nigel Fitzsimons, James A. Malleret-King, Delphine Redford, Kent H. Solano, Pedro
Current-voltage characteristics of graphene devices: interplay between Zener-Klein tunneling and defects
Creators: name: Vandecasteele, Niels
name: Barreiro, Amelia
name: Lazzeri, Michele
name: Bachtold, Adrian
name: Mauri, Francesco
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report a theoretical/experimental study of current-voltage characteristics (I-V) of graphene devices near the Dirac point. The I-V can be described by a power law (I \propto V^α, with 1< α<= 1.5). The exponent is higher when the mobility is lower. This superlinear I-V is interpreted in terms of the interplay between Zener-Klein transport, that is tunneling between different energy bands, and defect scattering. Surprisingly, the Zener-Klein tunneling is made visible by the presence of defects.
description: 5 pages, 3 figures
წყალი და პოლიტიკა ახლო აღმოსავლეთში (Water and Politics in the Middle East Region)
Creators: name: Sitchinava, Bukhuti
Publisher: name: figshare
Year: 2021
Subjects: subject: 160699 Political Science not elsewhere classified
subject: FOS: Political science
subject: 210310 Middle Eastern and African History
subject: FOS: History and archaeology
subject: 160605 Environmental Politics
subject: Geography

description: თანამედროვე მსოფლიოში წყლის რესურსებთან დაკავშირებული პრობლემა ერთ-ერთი აქტუალური თემაა. მსოფლიო წყლის რესურსების მხოლოდ 2.5%-მდეა გამოსაყენებლად ვარგისი. მდგომარეობას კიდევ უფრო ართულებს მსოფლიოში წყლის რესურსების არათანაბარი განაწილება. არიდული და სემი-არიდული კლიმატის გამო წყლის სერიოზულ დეფიციტს განიცდის ახლო აღმოსავლეთის რეგიონიც. წყლის რესურსებთან დაკავშირებული პრობლემები კიდევ უფრო ართულებს ურთიერთობებს ახლო აღმოსავლეთის რეგიონის ქვეყნებს შორის, რამაც მომავალში შესაძლოა დიდი კონფლიქტები გამოიწვიოს.

In the modern world water resources related problems is an important issue. The earth is covered 70 % by water, however a mere 2.5 % of all this water is drinkable, moreover the situation for usable water resources get even more complicated due to uneven distribution in the world. Water shortage dilemma is exasperated in the Middle East Region, due to its arid and semi-arid climate. Therefore, water resources related problems has caused friction among the Middle East countries which might lead to conflict in the future.
title: Notre terrain d'entente
title: Rétablir la santé des terres pour une agriculture durable
titleType: Subtitle
title: Notre terrain d'entente
titleType: AlternativeTitle
Creators: name: Larbodière, Ludovic
name: Davies, Jonathan
name: Schmidt, Ruth
name: Union Internationale Pour La Conservation De La Nature Et De Ses Ressources
Publisher: name: Union internationale pour la conservation de la nature
Year: 2020

description: Autres auteurs : Magero, Chris Vidal, Alain Schnell, Alberto Arroyo Bucher, Peter Maginnis, Stewart Cox, Neil Hasinger, Olivier Abhilash, P.C. Conner, Nicolas Westerberg, Vanja Costa, Luis
SEF: A Method for Computing Prediction Intervals by Shifting the Error Function in Neural Networks
Creators: name: Aretos, E. V.
name: Sotiropoulos, D. G.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: In today's era, Neural Networks (NN) are applied in various scientific fields such as robotics, medicine, engineering, etc. However, the predictions of neural networks themselves contain a degree of uncertainty that must always be taken into account before any decision is made. This is why many researchers have focused on developing different ways to quantify the uncertainty of neural network predictions. Some of these methods are based on generating prediction intervals (PI) via neural networks for the requested target values. The SEF (Shifting the Error Function) method presented in this paper is a new method that belongs to this category of methods. The proposed approach involves training a single neural network three times, thus generating an estimate along with the corresponding upper and lower bounds for a given problem. A pivotal aspect of the method is the calculation of a parameter from the initial network's estimates, which is then integrated into the loss functions of the other two networks. This innovative process effectively produces PIs, resulting in a robust and efficient technique for uncertainty quantification. To evaluate the effectiveness of our method, a comparison in terms of successful PI generation between the SEF, PI3NN and PIVEN methods was made using two synthetic datasets.
description: The paper has been accepted at the 2024 International Conference on Computer and Applications (ICCA24), Cairo, Egypt, December 17-19, 2024. https://icca-conf.info/icca-2024
Mode excitation by turbulent convection in rotating stars. I. Effect of uniform rotation
Creators: name: Belkacem, K.
name: Mathis, S.
name: Goupil, M. J.
name: Samadi, R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We focus on the influence of the Coriolis acceleration on the stochastic excitation of oscillation modes in convective regions of rotating stars. Our aim is to estimate the asymmetry between excitation rates of prograde and retrograde modes. We extend the formalism derived for obtaining stellar $p$- and $g$-mode amplitudes (Samadi & Goupil 2001, Belkacem et al. 2008) to include the effect of the Coriolis acceleration. We then study the special case of uniform rotation for slowly rotating stars by performing a perturbative analysis. This allows us to consider the cases of the Sun and the CoRoT target HD 49933. We find that, in the subsonic regime, the influence of rotation as a direct contribution to mode driving is negligible in front of the Reynolds stress contribution. In slow rotators, the indirect effect of the modification of the eigenfunctions on mode excitation is investigated by performing a perturbative analysis of the excitation rates. It turns out that the excitation of solar $p$ modes is affected by rotation with excitation rates asymmetries between prograde and retrograde modes of the order of several percents. Solar low-order $g$ modes are also affected by uniform rotation and their excitation rates asymmetries are found to reach up to 10 %. The CoRoT target HD 49933 is rotating faster than the Sun ($Ω/ Ω_\odot \approx 8$) and we show that the resulting excitation rates asymmetry is about 10 % for the excitation rates of $p$ modes. We have then demonstrated that $p$ and $g$ mode excitation rates are modified by uniform rotation through the Coriolis acceleration. Study of the effect of differential rotation is dedicated to a forthcoming paper.
description: 9 pages, 4 figures, accepted in A&A
Energy transport and heat production in quantum engines
Creators: name: Arrachea, L.
name: Moskalets, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A quantum dot driven by two ac gate potentials oscillating with a phase lag may be regarded as a quantum engine, where energy is transported and dissipated in the form of heat. In this chapter we introduce a microscopic model for a quantum pump and analyze the fundamental principle for the conservation of the charge and energy in this device. We also present the basics of two well established many-body techniques to treat quantum transport in harmonically time-dependent systems. We discuss the different operating modes of this quantum engine, including the mechanism of heat generation. Finally, we establish the principles of quantum refrigeration within the weak driving regime. We also show that it is possible to achieve a regime where part of the work done by some of the ac fields can be coherently transported and can be used by the other driving voltages.
description: 44 pp., 7 figs., to appear in Handbook of Nanophysics, ed. by Klaus D. Sattler
Finite-size topological phases from semimetals
Creators: name: Pal, Adipta
name: Cook, Ashley M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Topological semimetals are some of the topological phases of matter most intensely-studied experimentally. The Weyl semimetal phase, in particular, has garned tremendous, sustained interest given fascinating signatures such as the Fermi arc surface states and the chiral anomaly, as well as the minimal requirements to protect this three-dimensional topological phase. Here, we show that thin films of Weyl semimetals (which we call quasi-(3-1)-dimensional, or q(3-1)d) generically realize finite-size topological phases distinct from 3d and 2d topological phases of established classification schemes: response signatures of the 3d bulk topology co-exist with topologically-protected, quasi-(3-2)d Fermi arc states or chiral boundary modes due to a second, previously-unidentified bulk-boundary correspondence. We show these finite-size topological semimetal phases are realized by Hamiltonians capturing the Fermiology of few-layer Van der Waals material MoTe2 in experiment. Given the broad experimental interest in few-layer Van der Waals materials and topological semimetals, our work paves the way for extensive future theoretical and experimental characterization of finite-size topological phases.
description: 19 pages, 15 figures in main text, 4 pages and 4 figures in supplementary
A Simplified Model of ADAF with the Jet Driven by the Large-Scale Magnetic Field
Creators: name: Li, Yang
name: Gan, Zhao-Ming
name: Wang, Ding-Xiong
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We propose a simplified model of outflow/jet driven by the Blandford-Payne (BP) process from advection dominated accretion flows (ADAF) and derive the expressions of the BP power and disk luminosity based on the conservation laws of mass, angular momentum and energy. We fit the 2--10 keV luminosity and kinetic power of 15 active galactic nucleus (AGNs) of sub-Eddington luminosity. It is found that there exists an anti-correlation between the accretion rate and the advection parameter, which could be used to explain the correlation between Eddington-scaled kinetic power and bolometric luminosity of the 15 samples. In addition, the Ledlow-Owen relation for FR I/II dichotomy is re-expressed in a parameter space consisting of logarithm of dimensionless accretion rate versus that of the BH mass. It turns out that the FR I/II dichotomy is determined mainly by the dimensionless accretion rate, being insensitive to the BH mass. And the dividing accretion rate is less than the critical accretion rate for ADAFs, suggesting that FR I sources are all in the ADAF state.
description: 16 pages, 5 figures, 1 table. Accepted by New Astronomy
Supplementary document for Single-shot multispectral quantitative phase imaging of biological samples using deep learning - 6377555.pdf
Creators: name: Bhatt, Sunil
name: Butola, Ankit
name: kumar, anand
name: Thapa, Pramila
name: joshi, Akshay
name: Jadhav, Suyog
name: singh, Neetu
name: Prasad, Dilip
name: Agarwal, Krishna
name: Mehta, Dalip
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplementary File
Cosmic-ray electron signatures of dark matter
Creators: name: Pohl, Martin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: There is evidence for an excess in cosmic-ray electrons at about 500 GeV energy, that may be related to dark-matter annihilation. I have calculated the expected electron contributions from a pulsar and from Kaluza-Klein dark matter, based on a realistic treatment of the electron propagation in the Galaxy. Both pulsars and dark-matter clumps are quasi-pointlike and few, and therefore their electron contributions at Earth generally have spectra that deviate from the average spectrum one would calculate for a smooth source distribution. I find that pulsars younger than about 10^5 years naturally cause a narrow peak at a few hundred GeV in the locally observed electron spectrum, similar to that observed. On the other hand, for a density n_c = 10 /kpc^3 of dark-matter clumps the sharp cut-off in the contribution from Kaluza-Klein particles is sometimes more pronounced, but often smoothed out and indistinguishable from a pulsar source, and therefore the spectral shape of the electron excess is insufficient to discriminate a dark-matter origin from more conventional astrophysical explanations. The amplitude of variations in the spectral feature caused by dark matter predominantly depends on the density of dark-matter clumps, which is not well known.
description: 5 pages, 2 figures. Phys. Rev. D, submitted
TORE: Ein DSpace für alles
Creators: name: Goldschmidt, Oliver
Publisher: name: Zenodo
Year: 2019

description: This presentation shows the approach of Hamburg University of Technology to build an Open Access Repository, a Research Data Repository and a Research Information System for their university using a single instance of DSpace CRIS. The presentation slides are in German.

This presentation was held at University of Applied Science Hamburg on 2019-05-09 in context of the Open Access Lab course by Christine Gläser.
The control and analysis of one-pot multistep reactions by automation and reaction monitoring technologies
Creators: name: Liu, Junliang
Publisher: name: University of British Columbia
Year: 2024

description: The comprehension, control, and optimization of chemical reactions largely depend on the apt selection of suitable analytical methodologies. For simpler reactions, characterized by straightforward setups and a limited number of reaction components, success can typically be achieved through the combination of standard off-line analytical instruments and established workflows/methodologies. Nonetheless, the situation dramatically changes with the escalation of reaction complexity. This situation becomes particularly prominent in the context of one-pot telescoping type reactions. Such complexities necessitate the development and implementation of more advanced analytical tools and control strategies to ensure the effective study and optimization. This thesis delves into the creation of innovative platforms and methodologies to scrutinize one-pot multistep reaction systems, enabling the control and analysis of these reactions. The work is composed of three distinct studies. The first study focuses on the development of an adaptive auto-synthesizer by merging commercially accessible automated labware and programming language. This auto-synthesizer facilitates the control and standardization of one-pot multistep reactions, accomplished through the integration of orthogonal online reaction monitoring techniques to enable a feedback-control algorithm. In particular, the platform was used to investigate a one-pot two-step carbonyl diimidazole (CDI)-mediated amide bond formation reaction. By adaptively standardizing the reaction conditions, relative rates for the reaction between various carboxylic acids and amines were determined. The second study explored a reliable monitoring methodology for nanocluster (NC) synthesis. Given the complexity of NC synthesis, which usually results in mixtures comprising various species of metal clusters and ligands, existing process analytical technologies (PATs) have proven inadequate for the separation and quantification of each component within the mixture. To address this, I developed a high-performance liquid chromatography (HPLC) separation technique tailored for an N-heterocyclic carbene (NHC)-gold nanocluster (AuNC) mixture. The synthesis of [Au₁₃(NHC)₉Cl₃]Cl₂ and [Au₂₄(NHC)₁₄Cl₂H₃][BF₄]₃ was examined through HPLC monitoring. The third study focused on visualization of the process of one-pot reactions, with those involving non-UV-active and/or unstable reaction components. Two instances are presented in this research. In the first scenario, the research aimed to visualize bio-catalyzed cascade reactions. In the second instance, the study aimed to visualize unstable acyl imidazolide intermediates involved in amidation reactions.
Simulation of 4d N=1 supersymmetric Yang-Mills theory with Symanzik improved gauge action and stout smearing
Creators: name: Demmouche, K.
name: Farchioni, F.
name: Ferling, A.
name: Montvay, I.
name: Münster, G.
name: Scholz, E. E.
name: Wuilloud, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We report on the results of a numerical simulation concerning the low-lying spectrum of four-dimensional N=1 SU(2) Supersymmetric Yang-Mills (SYM) theory on the lattice with light dynamical gluinos. In the gauge sector the tree-level Symanzik improved gauge action is used, while we use the Wilson formulation in the fermion sector with stout smearing of the gauge links in the Wilson-Dirac operator. The ensembles of gauge configurations were produced with the Two-Step Polynomial Hybrid Monte Carlo (TS-PHMC) updating algorithm. We performed simulations on large lattices up to a size of 24^3 x 48 at $β=1.6$. Using QCD units with the Sommer scale being set to r_0 = 0.5 fm, the lattice spacing is about a ~ 0.09 fm, and the spatial extent of the lattice corresponds to 2.1 fm. At the lightest simulated gluino mass the spin-1/2 gluino-glue bound state appeared to be considerably heavier than its expected super-partner, the pseudoscalar bound state. Whether supermultiplets are formed remains to be studied in upcoming simulations.
description: 17 pages, 8 figures (eps), LaTeX2e
Partially quenched chiral perturbation theory in the epsilon regime at next-to-leading order
Creators: name: Lehner, Christoph
name: Wettig, Tilo
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the partition function of partially quenched chiral perturbation theory in the epsilon regime at next-to-leading order using the supersymmetry method in the formulation without a singlet particle. We include a nonzero imaginary chemical potential and show that the finite-volume corrections to the low-energy constants $Σ$ and $F$ for the partially quenched partition function, and hence for spectral correlation functions of the Dirac operator, are the same as for the unquenched partition function. We briefly comment on how to minimize these corrections in lattice simulations of QCD. As a side result, we show that the zero-momentum integral in the formulation without a singlet particle agrees with previous results from random matrix theory.
description: 19 pages, 4 figures; minor changes, to appear in JHEP
Predictions for photon-jet correlations at forward rapidities in heavy-ion collisions
Creators: name: Adhya, Souvik Priyam
name: Kutak, Krzysztof
name: Placzek, Wieslaw
name: Rohrmoser, Martin
name: Tywoniuk, Konrad
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work, we study for the first time jet-medium interactions in heavy-ion collisions with introduction of saturation and Sudakov effects with parameters tuned for upcoming forward calorimeter acceptances in experiments, in particular the ALICE FoCal detector. We focus on $γ+$jet correlations by taking into account in-medium parton evolution using the BDIM equation that describes jet interactions with the quark-gluon plasma (QGP) combined with vacuum-like emissions (VLE). We systematically introduce the early time gluon saturation dynamics through the small-$x$ Improved Transverse Momentum Dependent factorization (ITMD). For our purpose, we use Monte Carlo programs KATIE and TMDICE to generate hard events and in-medium parton evolution, respectively. We present results of azimuthal correlations and nuclear modification ratios to gauge the impact of the gluon saturation effects at early time for the in-medium jet energy loss.
description: 15 pages, 8 figures, matches published version
Beyond the Einstein Equation of State: Wald Entropy and Thermodynamical Gravity
Creators: name: Parikh, Maulik K.
name: Sarkar, Sudipta
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the classical equations of gravity follow from a thermodynamic relation, dQ = T dS, where S is taken to be the Wald entropy, applied to a local Rindler horizon at any point in spacetime. Our approach works for all diffeomorphism-invariant theories of gravity. This suggests that classical gravity may be thermodynamic in origin.
description: 9 pages, Latex, 1 figure
Der Geistlich Schatz Christlicher Vorbereitung vnnd glaeubigs Trosts, wider Tod vnd Sterben, auch alle mitlauffende beschwaerliche Anfechtungen; 1612
Creators: name: Blarer, Ambrosius
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2023

description: Vorlageform des Erscheinungsvermerks: Getruckt zů Zürych, bey Joh. Rodolph Wolffen. 1612.
Higgs boson at LHC: a diffractive opportunity
Creators: name: Ducati, M. B. Gay
name: Silveira, G. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: An alternative process is presented for diffractive Higgs boson production in peripheral $pp$ collisions, where the particles interact through the Double Pomeron Exchange. The event rate is computed as a central-rapidity distribution for Tevatron and LHC energies leading to a result around 0.6 pb, higher than the predictions from previous approaches. Therefore, this result arises as an enhanced signal for the detection of the Higgs boson in hadron colliders. The predictions for the Higgs boson photoproduction are compared to the ones obtained from a similar approach proposed by the Durham group, enabling an analysis of the future developments of its application to $pp$ and $AA$ collisions.
description: 4 pages, 6 figures, contribution to the proceedings of "Diffraction in High Energy Physics" [DIFFRACTION 2008], 9-14 Sep. 2008, La Londe-les-Maures, France. Latex and AIP style file
Structure, magnetic properties, and cycloidal spin ordering in Nd-doped BiFeO$_3$ synthesized by sol-gel method
Creators: name: Komędera, K.
name: Siedliska, K.
name: Gondek, Ł.
name: Nalecz, D. M.
name: Panek, R.
name: Krupska-Klimczak, M.
name: Sumara, I. Jankowska
name: Tokarz, W.
name: Tabiś, W.
name: Pikula, T.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this study, the structural and magnetic properties of Nd-doped BiFeO$_3$ materials with the formula Bi$_{1-x}$Nd$_x$FeO$_3$ $(x = 0 - 0.2)$ were investigated. Samples were prepared using the sol-gel method and annealed at 823 K for 4 hours. Microstructural studies indicated that nanomaterials with an average grain size of less than 100 nm were produced, with the smallest grain size observed for the solid solution with $x = 0.15$. Rietveld analysis of diffraction patterns revealed a composition-driven transformation from the rhombohedral $(R3c)$ lattice to the orthorhombic $(Pbam)$ structure. The above finding is correlated to Mössbauer spectroscopy data, which demonstrated the gradual destruction of the spin cycloid due to the structural transformation to the $Pbam$ structure. The spectra were analyzed using a complex hyperfine magnetic field distribution model reflecting cycloidal spin ordering. Scanning differential calorimetry revealed that for the investigated materials the magnetic ordering temperatures are close to 640 K, independently from the Nd concentration. Magnetic measurements showed the emergence of weak ferromagnetic properties with increasing Nd ions concentration, consistently with Mössbauer spectroscopy data.
INTERAKTIV TA'LIM PLATFORMALARINING DASTURLASH FANI O'QITISHDAGI SAMARADORLIGI
Creators: name: Umarzoda, Shohruh
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada interaktiv ta’lim platformalarining dasturlash fanini o‘qitish jarayonidagi samaradorligi tahlil qilinadi. Zamonaviy ta’lim texnologiyalari an’anaviy o‘qitish metodlarining o‘rnini egallab, o‘quvchilarga amaliy mashg‘ulotlar va kod yozish imkoniyatlarini kengaytiradi. Turli interaktiv platformalar taqqoslanib, ularning o‘quvchilarga ta’siri hamda ta’lim samaradorligini oshirish yo‘llari ko‘rib chiqiladi. Shuningdek, gamifikatsiya, moslashtirilgan o‘qitish va aralash ta’lim yondashuvlari haqida fikr yuritiladi.
Driving tailings management through interdisciplinary approaches : high-level modelling to bridge stakeholder knowledge gaps
Creators: name: Innis, Sally
Publisher: name: University of British Columbia
Year: 2024

description: The failures of tailings storage facilities (TSFs) can produce tailings flows that can result in long-lasting environmental and socioeconomic impacts. Targeted, collaborative stakeholder action to improve TSF management is imperative to mitigate future TSF failures. This thesis aims to make a practical contribution to resolving this challenge by developing tools to drive involvement from influential mining stakeholders, including institutional mining investors and policymakers. The first stage of work explored the role of mining investors in mitigating TSF failures through qualitative interviews and an extensive literature review. Investors were found to play a unique role in improving tailings management. It was concluded that institutional mining investors need tools and frameworks to meaningfully incorporate TSF risks into investment decisions. To address the needs of institutional investors, the second stage of work involved developing a high-level empirical tailings flow model, LAHARZ-T. LAHARZ-T presents a first-order methodology to investigate downstream areas with the potential of being impacted by tailings flows recalibrating a Geographic Information System (GIS)-based computer program originally developed for the inundation area mapping of lahars. The model was calibrated and validated and found to offer an efficient method for regional scale inundation mapping of potential TSF failures. Following the development of LAHARZ-T, the model and methodology were tested as a tool supporting mining stakeholders in evaluating the consequences of potential TSF failures at large-scales. By modelling the potential socio-environmental impacts from 248 TSF failures across five mining countries, the differences in potential TSF consequence profiles between mining countries were explored. The results show that populations and waterbodies are often impacted in TSF failure scenarios but depend on the country of analysis. However, data scarcity issues impacted the range of available research directions. The findings can be used as a guide for policymakers to understand the potential consequences from TSF failures and may inform the development of policy interventions. Despite the data availability limitations, the thesis presents a tool and methodology for mining stakeholders to prepare first-order assessments and prioritization of facilities within a portfolio or region of interest, as well as the flexibility to evaluate specific elements of concern.
Supplementary document for Hybrid 3D-Printed Fiber-Solid State Laser - 6695275.pdf
Creators: name: Angstenberger, Simon
name: Ruchka, Pavel
name: Hentschel, Mario
name: Steinle, Tobias
name: Giessen, Harald
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplementary Material: Optical Component Fabrication, Image Acquisition, Laser Characteristics, Statistical Analysis
title: Gender-based violence and environment linkages
title: The violence of inequality
titleType: Subtitle
title: Gender-based violence and environment linkages
titleType: AlternativeTitle
Creators: name: Castañeda Camey, Itzá
name: Sabater, Laura
name: Union Internationale Pour La Conservation De La Nature Et De Ses Ressources
Publisher: name: Union internationale pour la conservation de la nature
Year: 2020

description: Autres auteurs : Owren, Cate Boyer, Emmett A. Wen, Jamie
The spectral-temporal properties of the prompt pulses and rapid decay phase of GRBs
Creators: name: Willingale, R.
name: Genet, F.
name: Granot, J.
name: O'Brien, P. T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The prompt emission from GRBs is the brightest electromagnetic emission known yet it's origin is not understood. The flux density of individual prompt pulses of a GRB can be represented by an analytical expression derived assuming the emission is from a thin, ultra-relativistically expanding, uniform, spherical shell over a finite range of radii. We present the results of fitting this analytical expression to the lightcurves from the four standard Swift BAT energy bands and two standard Swift XRT energy bands of 12 bursts. The expression includes the High Latitude Emission (HLE) component and the fits provide a rigourous demonstration that the HLE can explain the Rapid Decay Phase (RDP) of the prompt emission. The model also accommodates some aspects of energy-dependent lag and energy-dependent pulse width, but there are features in the data which are not well represented. Some pulses have a hard, narrow peak which is not well fitted or a rise and decay which is faster than expected using the standard indices derived assuming synchrotron emission from internal shocks, although it might be possible to accommodate these features using a different emission mechanism within the same overall framework. The luminosity of pulses is correlated with the peak energy of the pulse spectrum, Lf ~ (Epeak(1+z))^1.8, and anti-correlated with the time since ejection of the pulse, Lf ~ (Tf/(1 + z))^-2.0.
description: Accepted for publication in MNRAS