cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
INTEGRATION OF DIGITAL TECHNOLOGY AND IMPLEMENTATION CHALLENGES OF FOOTBALL EDUCATION IN SELECTED UNIVERSITIES IN HENAN PROVINCE, CHINA
Creators: name: Zhao, Gongyan
name: Mantuhac,, Pamela B.
Publisher: name: ZAP Journal
Year: 2024
Subjects: digital technology, soccer coaching, sports education, technological integration, campus sports, challenges, student engagement, training effectiveness

description: This study investigated the integration of digital technology in campus soccer coaching at Henan University and examined its impact on skill development, training effectiveness, student engagement, and ease of use. The study used a quantitative descriptive correlational design and surveyed 209 student respondents who actively participated in campus soccer and interacted regularly with their coaches.

Data collection was facilitated through a researcher-made questionnaire, validated by experts, and administered through an online platform. The findings revealed that although the use of digital tools in soccer training was generally effective, significant challenges were identified, particularly in terms of resource limitations and technological adaptation. The results underscore the need for targeted interventions to improve digital technology implementation in sports education, addressing resource allocation, training support, and adaptability to new technological advancements.

Recommendations include enhanced training programs for coaches, better resource allocation, and improved access to technical support to maximize the benefits of digital tools in soccer coaching.
Regulation of Digital Technologies in the EU:
Creators: name: Papakonstantinou, Vagelis
name: De Hert, Paul
Publisher: name: Technology and Regulation
Year: 2022

description: EU regulatory initiatives on technology-related topics has spiked over the past few years. On the basis of its Priorities Programme 2019-2024, while creating “Europe fit for the Digital Age”, the EU Commission has been busy releasing new texts aimed at regulating a number of technology topics, including, among others, data uses, online platforms, cybersecurity, or artificial intelligence. This paper identifies three basic phenomena common to all, or most, EU new technology-relevant regulatory initiatives, namely (a) “act-ification”, (b) “GDPR mimesis”, and (c) “regulatory brutality”. These phenomena divulge new-found confidence on the part of the EU technology legislator, who has by now asserted for itself the right to form policy options and create new rules in the field for all of Europe. These three phenomena serve as indicators or early signs of a new European technology law-making paradigm that by now seems ready to emerge.
description: Technology and Regulation, Vol. 2022 (2022)
Upper bounds on the genus of hyperelliptic Albanese fibrations
Creators: name: Ling, Songbo
name: Lü, Xin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J29, 14J10, 14D06

description: Let $S$ be a minimal irregular surface of general type, whose Albanese map induces a hyperelliptic fibration $f:\,S \to B$ of genus $g$.We prove a quadratic upper bound on the genus $g$, i.e., $g\leq h\big(χ(\mathcal{O}_S)\big)$, where $h$ is a quadratic function. We also construct examples showing that the quadratic upper bounds can not be improved to the linear ones. In the special case when $p_g(S)=q(S)=1$, we show that $g\leq 14$.
description: Comments are welcome To appear in Forum of Mathematics Sigma
Energy Dissipation and Stability in the Recursive Splitting Method
Creators: name: Francesco D'Agostino
Publisher: name: Zenodo
Year: 2025

description: A recursive splitting of turbulent regions combined with smooth manifold embedding yields a provably bounded energy framework. Localized energy decays geometrically in each subregion, cross‑region transfers remain uniformly bounded, and curvature constraints prevent finite‑time energy blow‑up. Consequently, global energy conservation and long‑time stability are established under general forcing and boundary conditions.
Fault-tolerant structures for measurement-based quantum computation on a network
Creators: name: van Montfort, Yves
name: de Bone, Sébastian
name: Elkouss, David
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work, we introduce a method to construct fault-tolerant measurement-based quantum computation (MBQC) architectures and numerically estimate their performance over various types of networks. A possible application of such a paradigm is distributed quantum computation, where separate computing nodes work together on a fault-tolerant computation through entanglement. We gauge error thresholds of the architectures with an efficient stabilizer simulator to investigate the resilience against both circuit-level and network noise. We show that, for both monolithic (i.e., non-distributed) and distributed implementations, an architecture based on the diamond lattice may outperform the conventional cubic lattice. Moreover, the high erasure thresholds of non-cubic lattices may be exploited further in a distributed context, as their performance may be boosted through entanglement distillation by trading in entanglement success rates against erasure errors during the error-decoding process. These results highlight the significance of lattice geometry in the design of fault-tolerant measurement-based quantum computing on a network, emphasizing the potential for constructing robust and scalable distributed quantum computers.
description: 21 pages, 17 figures
Adding Ƭ leptons to the search for supersymmetry in events with three leptons and missing transverse momentum with the ATLAS detector at the LHC
Creators: name: Boone, Kyle
Publisher: name: The University of British Columbia
Year: 2013

description: The objective of this project was to investigate adding taus to the search for supersymmetry with the ATLAS detector at the LHC. This analysis was done using the framework set up by the group investigating the channel with a final state with 3 leptons where none of them are Ƭ leptons. I modified this framework to include Ƭ leptons and performed all of my analyses using the framework. I began by studying the reconstruction of Ƭ leptons. These particles are very short lived and only their decay products are observed in the detector so they must be reconstructed in the analysis. After determine a suitable reconstruction method I investigated reproducing an analysis similar to what has been done with the 3 light leptons in order to improve the sensitivity to the models targeted by that search. Adding taus in proved to yield much weaker results than the standard 3 light leptons search and did not yield any significant increase in sensitivity. I then investigated a final state where there are two same sign light leptons and one tau. This configuration results in a much smaller background than the standard 3 lepton search. I identified several models where this search would be able to outperform the 3 light lepton search and optimized signal regions for these models. Supersymmetry is a very promising theory for physics beyond the Standard Model and current searches have little to no sensitivity to the chosen configuration which motivates the addition of new channels. I began work on the background estimation but ran into some issues that the ATLAS SUSY multilepton group is currently trying to figure out. The new signal regions that I have found have been included in the analysis of the full 2012 dataset.
Supplementary document for Parametric amplification based on intermodal four-wave mixing between different supermodes in coupled core fibers - 6147722.pdf
Creators: name: Perego, Auro
name: Shi, Minji
name: Ribeiro, Vitor
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Parametric amplification based on intermodal four-wave mixing between different supermodes in coupled core fibers: supplement
Approximating Maximum Edge 2-Coloring by Normalizing Graphs
Creators: name: Mömke, Tobias
name: Popa, Alexandru
name: Roshany-Tabrizi, Aida
name: Ruderer, Michael
name: Vincze, Roland
Publisher: name: arXiv
Year: 2024
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: In a simple, undirected graph G, an edge 2-coloring is a coloring of the edges such that no vertex is incident to edges with more than 2 distinct colors. The problem maximum edge 2-coloring (ME2C) is to find an edge 2-coloring in a graph G with the goal to maximize the number of colors. For a relevant graph class, ME2C models anti-Ramsey numbers and it was considered in network applications. For the problem a 2-approximation algorithm is known, and if the input graph has a perfect matching, the same algorithm has been shown to have a performance guarantee of 5/3. It is known that ME2C is APX-hard and that it is UG-hard to obtain an approximation ratio better than 1.5. We show that if the input graph has a perfect matching, there is a polynomial time 1.625-approximation and if the graph is claw-free or if the maximum degree of the input graph is at most three (i.e., the graph is subcubic), there is a polynomial time 1.5-approximation algorithm for ME2C
description: 24 pages, 6 figures, preliminary version published at WAOA 2023
Toxicological effects of caffeine on the antioxidant defense system and some biochemical responses in earthworm, Allolobophora caliginosa
Creators: name: El-Danasoury, HM
name: Reda, LA
name: Abdel-Halim, KY
Publisher: name: Invertebrate Survival Journal
Year: 2024

description: Allolobophora caliginosa, an earthworm, was exposed to caffeine (CAF) via artificial soil to evaluate the effects on antioxidant enzymes in animals treated to 0, 10, 20, 40, and 80 mg CAF/kg soil after 7, 14, 28, and 56 d of exposure. There is evidence that antioxidant enzymes protect cells from free radical damage. A high CAF concentration generated changes in the activities of superoxide dismutase (SOD), catalase (CAT), and guaiacol peroxide (POD), but had slight effects on malondialdehyde (MDA) levels after 56 d of exposure. Earthworms¢ MDA levels elevated somewhat after 7, 14, and 28 d. Earthworms treated with CAF were unable to induce the cytotoxic action over a very long period of time (56 d), as three enzymes [polyphenol oxidase (PPO), acetyl cholinesterase (AChE), and cellulose] were significantly inhibited. These data support the notion that oxidative stress plays a role in the response of earthworms to CAF poisoning.
description: Invertebrate Survival Journal, Vol. 21 No. 1 (2024)
Combined effects of some insecticides and different isolates of Beauveria bassiana and Metarhizium anisopliae on mortality and immune responses of Chilo suppressalis Walker (Lepidoptera: Crambidae)
Creators: name: Firouzbakht, H
name: Zibaee, A
name: Ghadamyari, M
Publisher: name: Invertebrate Survival Journal
Year: 2024

description: The combined use of microbial agents and chemical insecticides is an effective strategy against insect pests in agroecosystems. This study evaluates the effects of four insecticides-permethrin, fenitrothion, trichlorfon, and tebufenozide-together with four isolates of the entomopathogenic fungus Beauveria bassiana and two isolates of Metarhizium anisopliae on the fourth instar larvae of Chilo suppressalis. In the first experiment, treatment with fungal isolates induced the activities of general esterases and glutathione S-transferases (GST) in the larvae. Field concentrations of insecticides increased larval mortality in both control and fungus-treated groups, except for BBLN2, which showed no significant difference. In the second experiment, conidia cultured in control and insecticide-treated media were exposed to field concentrations of insecticides on C. suppressalis larvae. This resulted in a significant decrease in larval mortality when treated with conidia cultured with insecticides. In the third experiment, larvae treated with permethrin exhibited the highest total hemocyte counts among those injected with BBLN1 and BBLN2, whereas larvae treated with fenitrothion and trichlorfon showed similar results after injection with BBAL1. All insecticide and fungal isolate treatments increased phenoloxidase activity compared to control larvae. These results underscore the importance of screening for optimal combinations of insecticides and entomopathogenic fungi to enhance control measures, which depend on the specific fungal isolate and type of insecticide.
description: Invertebrate Survival Journal, Vol. 21 No. 1 (2024)
An Effective Way to Determine the Separability of Quantum State
Creators: name: Yang, Ma-Cheng
name: Qiao, Cong-Feng
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose in this work a practical approach to address the longstanding and challenging problem of quantum separability, leveraging the correlation matrices of generic observables. General separability conditions are obtained by dint of constructing the measurement-induced Bloch space, which in essence come from the intrinsic constraints in the space of quantum state. The novel approach can not only reproduce various established entanglement criteria, it may as well brings about some new results, possessing obvious advantages for certain bound entangled states and the high dimensional Werner states. Moreover, it is found that criteria obtained in our approach can be directly transformed into entanglement witness operators.
description: 16 pages, 3 figures
Temperature and Tautomeric Effects in High-Resolution Oxygen 1s X-ray Photoelectron Spectroscopy of Purines and Pyrimidines
Creators: name: Wei, Minrui
name: Zuo, Junxiang
name: Tian, Guangjun
name: Hua, Weijie
Publisher: name: arXiv
Year: 2024
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Computational Physics (physics.comp-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Purines and pyrimidines, crucial building blocks in biological systems, have attracted significant interest across molecular physics, biochemistry, pharmacology, and chemistry. Extensive spectroscopies have been employed for characterization, while the temperature and potential tautomeric effects can complicate the interpretation of underlying physics and chemistry. Here, we conducted first-principles simulations to analyze the vibrationally-resolved O1s X-ray photoelectron spectra of 6 common biomolecules at different temperatures, comprising 3 purine (xanthine, caffeine, and hypoxanthine) and 3 pyrimidine (thymine, 5F-uracil, and uracil) derivatives, and the tautomeric effect of hypoxanthine at varying temperatures. Using both time-independent (TI) and time-dependent (TD) methods under the Franck-Condon approximation, we obtained theoretical spectra that exhibited excellent agreement with experiments. Our analysis of these systems, all featuring carbonyl oxygens, unveiled distinctive characteristics of oxygen in N-CO-N (O2) compared to that within a N-CO-C structure (O1), showcasing higher O1s binding energy and total vibrational reorganization energy. We observed small differences in the zero-point vibration energies between the core-ionized and ground states, indicating a weak Duschinsky rotation effect. We consistently found that O1s ionization resulted in elongation of the O*=C bond length. The TI method facilitated the assignment of experimental spectra to different atoms or tautomers, where the atom-specific vibronic profiles of all 6 molecules exhibited similarity, with the 0-2 transitions dominating. TD enabled a more comprehensive exploration of the temperature effect, and the tautomeric effect of hypoxanthine by incorporating the Boltzmann population ratios of tautomers. We observed significant temperature dependence in the vibronic features present in these spectra.
description: 6 figures
Robotic origami
Creators: name: Niu, Jianxing
name: Peng, Tess
name: Wang, Vicky
Publisher: name: The University of British Columbia
Year: 2013

description: The Robotic Origami project is sponsored by Dr. James Olson at the University of British Columbia for ENPH 479 Winter 2012. The scope of the project is to incorporate electronic circuits onto paper and produce an environment sensitive origami showpiece that is composed of about 80% of paper based products. The design should be artistic in visual appearance, cheap and easily mass producible with the ideal of becoming a consumer product. The group explored different methods for placing electric circuits onto paper such as printing with conductive ink, drawing circuits on paper with Bare Paint and using copper tape to attach electronic components onto paper. Each technique has its advantages and drawbacks. For example, the most promising technology, namely conductive ink, turns out to be printing on a plastic sheet instead of paper, rendering itself undesirable for origami. Nevertheless, this technology is demonstrated in a circuit for driving LEDs on a Christmas tree. The Bare Paint technology is used in a paper based piano. A significant amount of time is spent on incorporating Flexinol, a type of Shape Memory Alloy (SMA), with origami designs. The methods for attaching Flexinol have been limited to taping and sewing the wires directly onto the paper surface, which severely limited the geometry in which the Flexinol could flex. Thus Flexinol, while being strong and powerful in terms of force per weight, may not provide enough pull force to a piece of origami for noticeable motion. For instance, six methods of incorporating Flexinol with magic ball origami are implemented and found to be ineffective. In the end, a piece of robotic dragon origami is made, which can sense ambient light, sound and touch and respond by actuating the Flexinol to move its wings or tail and play a short piece of music. Interactive Fingers that implement the Flexinol and capacitive touch sensors are also produced. We believe that robotic origami is of great interest and potential and it is worthwhile for future group to further investigate relevant technologies and apply to other paper products. Specifically ideas such as: incorporating Flexinol in different geometries to paper, exploring the use of paper-based sensors and printable batteries and explore substrates that printers can print onto paper instead of plastic are noteworthy.
NUTs, Bolts, and Spindles
Creators: name: Crisafio, Matteo Kevin
name: Fontanarossa, Alessio
name: Martelli, Dario
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We construct new infinite classes of Euclidean supersymmetric solutions of four dimensional minimal gauged supergravity comprising a $U (1) \times U (1)$-invariant asymptotically locally hyperbolic metric on the total space of orbifold line bundles over a spindle (bolt). The conformal boundary is generically a squashed, branched, lens space and the graviphoton gauge field can have either twist or anti-twist through the spindle bolt. Correspondingly, the boundary geometry inherits two types of rigid Killing spinors, that we refer to as twist and anti-twist for the three-dimensional Seifert orbifolds, as well as some specific flat connections for the background gauge field, determined by the data of the spindle bolt. For all our solutions we compute the holographically renormalized on-shell action and compare it to the expression obtained via equivariant localization, uncovering a markedly distinct behaviour in the cases of twist and anti twist. Our results provide precise predictions for the large $N$ limit of the corresponding localized partition functions of three-dimensional $\mathcal{N}=2$ superconformal field theories placed on Seifert orbifolds.
description: 74 pages, 2 figures. v2: section 2.2 added; section 3 slightly rearranged and comparison with [7] improved
Subsystem Symmetry Fractionalization and Foliated Field Theory
Creators: name: Hsin, Po-Shen
name: Stephen, David T.
name: Dua, Arpit
name: Williamson, Dominic J.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Topological quantum matter exhibits a range of exotic phenomena when enriched by subdimensional symmetries. This includes new features beyond those that appear in the conventional setting of global symmetry enrichment. A recently discovered example is a type of subsystem symmetry fractionalization that occurs through a different mechanism to global symmetry fractionalization. In this work we extend the study of subsystem symmetry fractionalization through new examples derived from the general principle of embedding subsystem symmetry into higher-form symmetry. This leads to new types of symmetry fractionalization that are described by foliation dependent higher-form symmetries. This leads to field theories and lattice models that support previously unseen anomalous subsystem symmetry fractionalization. Our work expands the range of exotic topological physics that is enabled by subsystem symmetry in field theory and on the lattice.
description: 39 + 9 pages, 15 figures
Kite runners : final report
Creators: name: Emery, Adrien
name: Lawson, Liam
name: Reitmeier, Craig
Publisher: name: The University of British Columbia
Year: 2013

description: With energy consumption soaring, and the resulting emissions becoming a serious global environmental problem, we aim to participate in the ongoing research to create an innovative renewable energy system that generates power from high altitude winds. By using a kite system we are able to harness the immense power of high altitude winds that are unreachable by traditional wind turbines. Kites also have the advantage of being low cost, simple to build, modular, and highly mobile. Our system will harness this power by attaching the kite tether to a spool/drum that is connected in-line with a generator. The kite is flown at a high angle of attack (AOA), or in “power mode”, and in a crosswind figure-eight pattern to maximize speed and lift. As the kite is pushed out by the wind the drum is free to rotate and drive the generator until the end of the tether is reached. At this point the kite is “depowered”, or flown at a low AOA, and reeled in by the motor using only a small fraction of the energy generated during the power cycle. This cycle then is repeated continuously generating power. Over the course of the spring semester of 2012 we were able to fully design and build our first prototype of the kite controller that will enable the kite system to fly in the pattern required to generate power. The kite controller itself is made up of DC motors that reel in or out the kite line and was controlled by an onboard micro-controller. This prototype, although not yet autonomous, allowed us to refine our remote control software and improve our mechanical system to better meet our future goals. This semester we moved forward with two primary focuses. Our first was to improve the kite’s autonomous flight capabilities which involved designing and building a tracking apparatus that could provide feedback data in order to control the position of the kite. Our other focus was to begin designing and assembling a ground power generation unit that could be integrated with our existing kite system to generate power.
Effects of Structural Variations to X-ray Absorption Spectra of g-C$_3$N$_4$: Insights from DFT and TDDFT Simulations
Creators: name: Zhang, Jun-Rong
name: Wang, Sheng-Yu
name: Wei, Minrui
name: Fu, Qiang
name: Hua, Weijie
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: X-ray absorption spectroscopy (XAS) is widely employed for structure characterization of graphitic carbon nitride (g-C$_3$N$_4$) and its composites. Nevertheless, even for pure g-C$_3$N$_4$, discrepancies in energy and profile exist across different experiments, which can be attributed to variations in structures arising from diverse synthesis conditions and calibration procedures. Here, we conducted a theoretical investigation on XAS of three representative g-C$_3$N$_4$ structures (planar, corrugated, and micro-corrugated) optimized with different strategies, to understand the structure-spectroscopy relation. Different methods were compared, including density functional theory (DFT) with the full (FCH) or equivalent (ECH) core-hole approximation, as well as the time-dependent DFT (TDDFT). FCH was responsible for getting accurate absolute absorption energy; while ECH and TDDFT aided in interpreting the spectra, through ECH-state canonical molecular orbitals (ECH-CMOs) and natural transition orbitals (NTOs), respectively. With each method, the spectra at the three structures show evident differences, which can be correlated to different individual experiments or in between. Our calculations explained the structural reason behind the spectral discrepancies among different experiments. Moreover, profiles predicted by these methods also displayed consistency, so their differences can be used as a reliable indicator of their accuracy. Both ECH-CMOs and NTO particle orbitals led to similar graphics, validating their applicability in interpreting the transitions. This work provides a comprehensive analysis of the structure-XAS relation for g-C$_3$N$_4$, provides concrete explanations for the spectral differences reported in various experiments, and offers insight for future structure dynamical and transient X-ray spectral analyses.
description: 6 pages, 4 figures
Theoretical lower limit of coercive field in ferroelectric hafnia
Creators: name: Yang, Jiyuan
name: Wu, Jing
name: Li, Jingxuan
name: Zhou, Chao
name: Sun, Yang
name: Chen, Zuhuang
name: Liu, Shi
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The high coercive field ($E_c$) of hafnia-based ferroelectrics presents a major obstacle to their applications. The ferroelectric switching mechanisms in hafnia that dictate $E_c$, especially those related to domain nucleation in the Nucleation-Limited-Switching (NLS) model and domain wall motion in the Kolmogorov-Avrami-Ishibas (KAI) model, have remained elusive. We develop a deep-learning-assisted multiscale approach, incorporating atomistic insights into the critical nucleus, to predict both NLS- and KAI-type coercive fields. The theoretical NLS-type $E_c$ values agree with previous experimental results as well as our own measurements and also exhibit the correct thickness scaling for films between 3 and 20 nm. Combined theoretical and experimental investigations reveal that the giant $E_c$ in hafnia-based ferroelectrics arises from the ultra-thin geometry, which confines switching to the NLS mechanism. We predict that the theoretical lower limit for KAI-type $E_c$ is 0.1 MV/cm arsing from mobile domain walls. The activation of KAI-type switching to achieve lower $E_c$ is supported by our experimental demonstration of a low coercive field of 1 MV/cm in a 60 nm ferroelectric (HfO$_2$)$_n$/(ZrO$_2$)$_n$ ($n=3$ unit cells) superlattices. These findings establish a comprehensive framework for understanding ferroelectric switching in hafnia and highlight the potential of geometry and domain-wall engineering to achieve low-$E_c$ devices.
description: 7 figures
5-6 YOSHDAGI BOLALARNI GIMNASTIKA VOSITALARI ORQALI KOORDINATSION QOBILIYATLARINI RIVOJLANTIRISH METODIKASI
Creators: name: Allambergenova, Raushana
Publisher: name: Zenodo
Year: 2024

description: Bolalar yoshi, ayniqsa 5-6 yosh, bolaning keyingi salomatligi va rivojlanishini belgilaydigan jismoniy ko'nikmalar va muvofiqlashtirish qobiliyatlarini shakllantirishning asosiy vaqti hisoblanadi. Ushbu yoshdagi sport va faol turmush tarzi dunyosiga kirish bolalarning jismoniy tayyorgarligi va umumiy rivojlanishini shakllantirishda nihoyatda muhim rol o'ynaydi. Maqola ushbu yoshdagi bolalar bilan ishlaydigan o'qituvchilar, murabbiylar va ota-onalarga qaratilgan bo'lib, gimnastikadan foydalanish orqali muvofiqlashtirish qobiliyatini rivojlantirishning keng qamrovli dasturini taklif etadi. Unda biz muvofiqlashtirishni rivojlantirishning nazariy asoslarini ko'rib chiqamiz, amaliy tavsiyalar va mashqlarni taklif qilamiz va natijalarni nazorat qilish va baholash usullarini muhokama qilamiz.
Integrated correlators at strong coupling in an orbifold of $\mathcal{N}=4$ SYM
Creators: name: Pini, Alessandro
name: Vallarino, Paolo
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the $4d$ $\mathcal{N}=2$ superconformal quiver gauge theory obtained by a $\mathbb{Z}_2$ orbifold of $\mathcal{N}=4$ super Yang-Mills (SYM). By exploiting supersymmetric localization, we study the integrated correlator of two Coulomb branch and two moment map operators and the integrated correlator of four moment map operators, determining exact expressions valid for any value of the 't Hooft coupling in the planar limit. Additionally, for the second correlator, we obtain an exact expression also for the next-to-planar contribution. Then, we derive the leading terms of their strong-coupling expansions and outline the differences with respect to the $\mathcal{N}=4$ SYM theory.
The Evaluation of Ethnicity in the 2015 elections in Nigeria
Creators: name: Samuel, Ajagun O.
name: Akpede, Mabel O.
name: Oaikhena, Marvellous
Publisher: name: Zenodo
Year: 2015

description: Abstract

This paper examines the effect of ethnicity in the 2015 elections in Nigeria. The phenomenon of ethnicity has taken an alarming dimension in Nigeria, such that elections had become ethnically oriented. Also, ethnicity has been elevated to dominate national discourse, controls how people think and talk and determines what they support or oppose. Therefore, the electorates were thus ethnically conscious during the 2015 electoral period in Nigeria. For instance, ethnicity became so pronounced in the core North- West, North-Central, North-East Geo- Political zones of Nigeria mostly by the Hausa/Fulani which was the stronghold of General Muhammadu Buhari (Rtd) of the All Peoples Progressive Party (APC) where the electorates vote cast turned-out was 92.8% to his favour. While, in the South South Geo-political Zone most of the electorates voted massively for former President Good Ebele Jonathan of the People's Democratic Party (PDP). In addition, the South-East Geo-political Zone was not left out for ethnic party system. For instance, the All-Progressive Grand Alliance Party (APGA) that was rooted among the Ibos, was massively voted for by the Ibos. This paper examines the nature of ethnicity, how it has affected the electorates and elections, and how to manage consequence ones in view of concretizing oneness, though our tribes may differ. The paper which was based on secondary sources of data about the voting pattern. reveals that majority of the Hausa/Fulani of the ethnic origins that lives in South- East, South-West and South-South Geo-Political Zones in Nigeria travelled home to cast their votes in support of General Muhammadu Buhari who they called "Sai Baba, " "Sai Buhari" which means "their own ''. However, the paper concludes by taking recommendations to Nigerians, if unity and oneness in the country is envisaged.
Time-harmonic wave propagation in junctions of two periodic half-spaces
Creators: name: Amenoagbadji, Pierre
name: Fliss, Sonia
name: Joly, Patrick
Publisher: name: arXiv
Year: 2024
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J05, 35J25, 78M10, 78-10

description: We are interested in the Helmholtz equation in a junction of two periodic half-spaces. When the overall medium is periodic in the direction of the interface, Fliss and Joly (2019) proposed a method which consists in applying a partial Floquet-Bloch transform along the interface, to obtain a family of waveguide problems parameterized by the Floquet variable. In this paper, we consider two model configurations where the medium is no longer periodic in the direction of the interface. Inspired by the works of Gérard-Varet and Masmoudi (2011, 2012), and Blanc, Le Bris, and Lions (2015), we use the fact that the overall medium has a so-called quasiperiodic structure, in the sense that it is the restriction of a higher dimensional periodic medium. Accordingly, the Helmholtz equation is lifted onto a higher dimensional problem with coefficients that are periodic along the interface. This periodicity property allows us to adapt the tools previously developed for periodic media. However, the augmented PDE is elliptically degenerate (in the sense of the principal part of its differential operator) and thus more delicate to analyse.
description: 64 pages, 30 figures
Pair statistics of oblate spheroids settling in a turbulent flow
Creators: name: Anand, Prateek
name: Ray, Samriddhi Sankar
Publisher: name: arXiv
Year: 2024
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We perform direct numerical simulations of sub-Kolmogorov, inertial spheroids settling under gravity in homogeneous, isotropic turbulence and find that small-scale clustering, measured via the correlation dimension, depends sensitively on their aspect ratios. In particular, such particles are shown to cluster more as their anisotropy increases. Further, the approach rate for pairs of spheroids are calculated and found to deviate significantly from the spherical-particle limit. Our study, spanning a range of Stokes numbers and aspect ratios, provides critical inputs for developing collision models to understand the dynamics of sedimenting, anisotropic particles in general and ice crystals in clouds in particular.
Geometric Foundation of Nonequilibrium Transport: A Minkowski Embedding of Markov Dynamics
Creators: name: Andrieux, David
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We introduce a unified framework for analyzing Markov dynamics by linking nonequilibrium thermodynamics with information geometry. Using the symmetrized Kullback-Leibler divergence, we reveal an intrinsic Minkowski structure in the parameter space that naturally separates symmetric elements, governed by kinetic activities and forces, from the antisymmetric behavior, characterized by thermodynamic currents and affinities. This formulation offers a systematic approach to probe the transport properties of Markov systems.
Observation of Floquet states in graphene
Creators: name: Merboldt, Marco
name: Schüler, Michael
name: Schmitt, David
name: Bange, Jan Philipp
name: Bennecke, Wiebke
name: Gadge, Karun
name: Pierz, Klaus
name: Schumacher, Hans Werner
name: Momeni, Davood
name: Steil, Daniel
name: Manmana, Salvatore R.
name: Sentef, Michael
name: Reutzel, Marcel
name: Mathias, Stefan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recent advances in the field of condensed-matter physics have unlocked the potential to realize and control emergent material phases that do not exist in thermal equilibrium. One of the most promising concepts in this regard is Floquet engineering, the coherent dressing of matter via time-periodic perturbations. However, the broad applicability of Floquet engineering to quantum materials is still unclear. For the paradigmatic case of monolayer graphene, the theoretically predicted Floquet-induced effects, despite a seminal report of the light-induced anomalous Hall effect, have been put into question. Here, we overcome this problem by using electronic structure measurements to provide direct experimental evidence of Floquet engineering in graphene. We report light-matter-dressed Dirac bands by measuring the contribution of Floquet sidebands, Volkov sidebands, and their quantum path interference to graphene's photoemission spectral function. Our results finally demonstrate that Floquet engineering in graphene is possible, paving the way for the experimental realization of the many theoretical proposals on Floquet-engineered band structures and topological phases.
description: 4 main figures, 3 extended figures
The transcendence degree of the reals over certain set-theoretical subfields
Creators: name: Fatalini, Azul
name: Schindler, Ralf
Publisher: name: arXiv
Year: 2024
Subjects: subject: Logic (math.LO)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics

description: It is a well-known result that, after adding one Cohen real, the transcendence degree of the reals over the ground-model reals is continuum. We extend this result for a set $X$ of finitely many Cohen reals, by showing that, in the forcing extension, the transcendence degree of the reals over a combination of the reals in the extension given by each proper subset of $X$ is also maximal. This answers a question of Kanovei and Schindler.
description: 19 pages, 3 figures. Comments are welcome
FedSI: Federated Subnetwork Inference for Efficient Uncertainty Quantification
Creators: name: Chen, Hui
name: Liu, Hengyu
name: Wu, Zhangkai
name: Fan, Xuhui
name: Cao, Longbing
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: While deep neural networks (DNNs) based personalized federated learning (PFL) is demanding for addressing data heterogeneity and shows promising performance, existing methods for federated learning (FL) suffer from efficient systematic uncertainty quantification. The Bayesian DNNs-based PFL is usually questioned of either over-simplified model structures or high computational and memory costs. In this paper, we introduce FedSI, a novel Bayesian DNNs-based subnetwork inference PFL framework. FedSI is simple and scalable by leveraging Bayesian methods to incorporate systematic uncertainties effectively. It implements a client-specific subnetwork inference mechanism, selects network parameters with large variance to be inferred through posterior distributions, and fixes the rest as deterministic ones. FedSI achieves fast and scalable inference while preserving the systematic uncertainties to the fullest extent. Extensive experiments on three different benchmark datasets demonstrate that FedSI outperforms existing Bayesian and non-Bayesian FL baselines in heterogeneous FL scenarios.
Front-wheel removable electric bicycle motor
Creators: name: Wang, Tao
Publisher: name: The University of British Columbia
Year: 2013

description: The Front-Wheel Removable Electric Bicycle Motor project is aimed towards building a removable all-in-one unit for a friction-drive system containing the battery, motor and the motor controller for the front wheel of a bicycle, and this will be a universal motor package for all regular bicycles. To achieve this goal I designed a firm frame on which could hold both the motor and the battery. In this design, the bicycle could have a speed of 20km/h and the maximum power output of 200W, which basically achieved the requirements of 25km/h and 200W provided by sponsor. With 4 batteries, this device could last 1 hour. During this project, three different designs were designed, manufactured and tested in real situation. After two failures, I built a working prototype, and then I started working on the special requirements of speed and power. The final deliverable includes a working prototype that could be easily mounted on the front fork of the bicycle, and a final report that will indicate every detail in this design.
On the Square Speed of Sound in High-Energy Collisions: Range of Values and How to Understand It
Creators: name: Duan, Ting-Ting
name: Liu, Fu-Hu
name: Olimov, Khusniddin K.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: After reviewing the sound speeds in various forms and conditions of matter, we investigate the sound speed of hadronic matter that has decoupled from the hot and dense system formed during high-energy collisions. We comprehensively consider factors such as energy loss of the incident beam, rapidity shift of leading nucleons, and the Landau hydrodynamic model for hadron production. The sound speed is related to the width or standard deviation of the Gaussian rapidity distribution of hadrons. The extracted square speed of sound lies within a range from 0 to 1/3 in most cases. For scenarios exceeding this limit, we also provide an explanation.
description: 12 pages, 3 figures. Advances in High Energy Physics, accepted
Impurity Parallel Velocity Gradient instability
Creators: name: Bourgeois, Jeanne
name: Lesur, Maxime
name: Lazaro, Guillermo Cuerva
name: Kosuga, Yusuke
Publisher: name: arXiv
Year: 2024
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In magnetized plasmas, a radial gradient of parallel velocity, where parallel refers to the direction of magnetic field, can destabilise an electrostatic mode called Parallel Velocity Gradient (PVG). The theory of PVG has been mainly developed assuming a single species of ions. Here, the role of impurities is investigated based on a linear, local analysis, in a homogeneous, constant magnetic field. To further simplify the analysis, the plasma is assumed to contain only two ion species - main ions and one impurity species - while our methodology can be straightforwardly extended to more species. In the cold-ion limit, retaining polarization drift for both main ions and impurity ions, and assuming Boltzmann electrons, the system is described by 4 fluid equations closed by quasi-neutrality. The linearized equations can be reduced to 2 coupled equations: one for the electric potential, and one for the effective parallel velocity fluctuations, which is a linear combination of main ion and impurity parallel velocity fluctuations. This reduced system can be understood as a generalisation of the Hasegawa-Mima model. With finite radial gradient of impurity parallel flow, the linear dispersion relation then describes a new instability: the impurity-modified PVG (i-PVG). Instability condition is described in terms of either the main ion flow shear, or equivalently, an effective flow shear, which combines main ion and impurity flow shears. Impurities can have a stabilising or destabilising role, depending on the parameters, and in particular the direction of main flow shear against impurity flow shear. Assuming a reasonable value of perpendicular wavenumber, the maximum growth rate is estimated, depending on impurity mass, charge, and concentration.
description: 17 pages, 12 figures
Thermodynamic limit in learning period three
Creators: name: Terasaki, Yuichiro
name: Nakajima, Kohei
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: A continuous one-dimensional map with period three includes all periods. This raises the following question: Can we obtain any types of periodic orbits solely by learning three data points? In this paper, we report the answer to be yes. Considering a random neural network in its thermodynamic limit, we first show that almost all learned periods are unstable, and each network has its own characteristic attractors (which can even be untrained ones). The latently acquired dynamics, which are unstable within the trained network, serve as a foundation for the diversity of characteristic attractors and may even lead to the emergence of attractors of all periods after learning. When the neural network interpolation is quadratic, a universal post-learning bifurcation scenario appears, which is consistent with a topological conjugacy between the trained network and the classical logistic map. In addition to universality, we explore specific properties of certain networks, including the singular behavior of the scale of weight at the infinite limit, the finite-size effects, and the symmetry in learning period three.
description: 19 pages, 12 figures
How the Activities of Oil Multinational Corporations (OMCS) Affect the Health Condition  of Rural Coastal People in the Niger Delta Region of Nigeria
Creators: name: Bieh, Nwoke N.
name: Boroh, Stanley Ebitare
Publisher: name: Zenodo
Year: 2020

description: The study examined how the activities of Oil Multinational Corporations (OMCS) affect the health condition of rural coastal people in the Niger Delta region. The focus is to provide empirical insight into the fact that the activities of the OMCS generate adverse consequences such as environmental degradation through oil spills and gas flaring among others with adverse consequences for the people. To achieve this broad objective, the study made use of a sample of 1,600 respondents from four (4) states of the Niger Delta region. The sample was using the Taro Yamane formula. The respondents were selected using a multi stage sampling procedure. Thus, relying on the theoretical strength of the World System perspective and analytical models such as the simple percentage as well as the chi-square statistical approaches, the paper out that the activities of the OMCS adversely affect the health condition of the people. However, the most prominent source of these health problems comes from inhaling contaminated air to base on this, the study recommends that the OMCS procedures for all clean-up and remediation should be fully reviewed and over. hauled so as to achieve the expected degree of environmental restoration in line with international best practices.