cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantum tunneling and level crossings in the squeeze-driven Kerr oscillator
Creators: name: Reynoso, Miguel A. Prado
name: Nader, D. J.
name: Chávez-Carlos, Jorge
name: Ordaz-Mendoza, B. E.
name: Cortiñas, Rodrigo G.
name: Batista, Victor S.
name: Lerma-Hernández, S.
name: Pérez-Bernal, Francisco
name: Santos, Lea F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The quasi-energy spectrum recently measured in experiments with a squeeze-driven superconducting Kerr oscillator showed good agreement with the energy spectrum of its corresponding static effective Hamiltonian. The experiments also demonstrated that the dynamics of low-energy states can be explained with the same emergent static effective model. The spectrum exhibits real (avoided) level crossings for specific values of the Hamiltonian parameters, which can then be chosen to suppress (enhance) quantum tunneling. Here, we analyze the spectrum and the dynamics of the effective model up to high energies, which should soon be within experimental reach. We show that the parameters values for the crossings, which can be obtained from a semiclassical approach, can also be identified directly from the dynamics. Our analysis of quantum tunneling is done with the effective flux of the Husimi volume of the evolved states between different regions of the phase space. Both initial coherent states and quench dynamics are considered. We argue that the level crossings and their consequences to the dynamics are typical to any quantum system with one degree of freedom, whose density of states presents a local logarithmic divergence and a local step discontinuity.
description: 13 pages, 8 figures
Exchange-energy functionals for finite two-dimensional systems
Creators: name: Pittalis, S.
name: Rasanen, E.
name: Helbig, N.
name: Gross, E. K. U.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Implicit and explicit density functionals for the exchange energy in finite two-dimensional systems are developed following the approach of Becke and Roussel [Phys. Rev. A 39, 3761 (1989)]. Excellent agreement for the exchange-hole potentials and exchange energies is found when compared with the exact-exchange reference data for the two-dimensional uniform electron gas and few-electron quantum dots, respectively. Thereby, this work significantly improves the availability of approximate density functionals for dealing with electrons in quasi-two-dimensional structures, which have various applications in semiconductor nanotechnology.
description: 5 pages, 3 figures
Did ASAS-SN Kill the Supermassive Black Hole Binary Candidate PG1302-102?
Creators: name: Liu, Tingting
name: Gezari, Suvi
name: Miller, M. Coleman
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Graham et al. (2015a) reported a periodically varying quasar and supermassive black hole binary candidate, PG1302-102 (hereafter PG1302), which was discovered in the Catalina Real-Time Transient Survey (CRTS). Its combined Lincoln Near-Earth Asteroid Research (LINEAR) and CRTS optical light curve is well fitted to a sinusoid of an observed period of $\approx 1,884$ days and well modeled by the relativistic Doppler boosting of the secondary mini-disk (D'Orazio et al. 2015). However, the LINEAR+CRTS light curve from MJD $\approx 52700$ to MJD $\approx 56400$ covers only $\sim 2$ cycles of periodic variation, which is a short baseline that can be highly susceptible to normal, stochastic quasar variability (Vaughan et al. 2016). In this Letter, we present a re-analysis of PG1302, using the latest light curve from the All-Sky Automated Survey for Supernovae (ASAS-SN), which extends the observational baseline to the present day (MJD $\approx 58200$), and adopting a maximum likelihood method which searches for a periodic component in addition to stochastic quasar variability. When the ASAS-SN data are combined with the previous LINEAR+CRTS data, the evidence for periodicity decreases. For genuine periodicity one would expect that additional data would strengthen the evidence, so the decrease in significance may be an indication that the binary model is disfavored.
description: Accepted to ApJ Letters
Reconnecting East Liberty: A Case Study of Public Investment in Public Infrastructure
Creators: name: Ciccone, Matthew
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 120199 Architecture not elsewhere classified
subject: FOS: Civil engineering

description: Researched during the summer of 2006 in a collaborative effort between Carnegie Mellon University's Urban Lab and East Liberty Development, Inc. this thesis seeks to develop a model for evaluating the impact of progressive urban design strategies in an existing community by measuring the costs and potential returns of public investment in progressive urban infrastructure. Using the case study of East Liberty as a laboratory, this study identifies clear baseline assumptions for the costs of urban infrastructure, as well as estimated public returns based on private investment leveraged and new residential and commercial tax revenue streams. Aimed at providing urban designers a facilitation tool in arguing for public investment in progressive urban infrastructure that reconnects fragmented com m unities, this study suggests that clear financial and com m unity returns are "hidden" in urban infrastructure investment.
RETURN To an Address presented to His Honour the Lieuteneant-Governor, requesting him to cause to be placed before the House copies of all Orders in Council or other documents relating to the application or appointment of any officers or servants under the "Reformatory Act, 1890;" also copies of all rules and regulations and warrants made or repealed under the authority of the above Statute.
Creators: name: British Columbia. Legislative Assembly
Publisher: name: Victoria, BC : Government Printer
Year: 2014

Abstract
A multifrequency study of giant radio sources-II. Spectral ageing analysis of the lobes of selected sources
Creators: name: Jamrozy, M.
name: Konar, C.
name: Machalski, J.
name: Saikia, D. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Multifrequency observations with the GMRT and the VLA are used to determine the spectral breaks in consecutive strips along the lobes of a sample of selected giant radio sources (GRSs) in order to estimate their spectral ages. The maximum spectral ages estimated for the detected radio emission in the lobes of our sources range from $\sim$6 to 36 Myr with a median value of $\sim$20 Myr using the classical equipartition fields. Using the magnetic field estimates from the Beck & Krause formalism the spectral ages range from $\sim$5 to 38 Myr with a median value of $\sim$22 Myr. These ages are significantly older than smaller sources. In all but one source (J1313+6937) the spectral age gradually increases with distance from the hotspot regions, confirming that acceleration of the particles mainly occurs in the hotspots. Most of the GRSs do not exhibit zero spectral ages in the hotspots, as is the case in earlier studies of smaller sources. This is likely to be largely due to contamination by more extended emission due to relatively modest resolutions. The injection spectral indices range from $\sim$0.55 to 0.88 with a median value of $\sim$0.6. We discuss these values in the light of theoretical expectations, and show that the injection spectral index appears to be correlated with luminosity and/or redshift as well as with linear size.
description: 12 Pages, 13 Figures, 9 Tables, Accepted for publication in MNRAS
On the fundamentality of the radial acceleration relation for late-type galaxy dynamics
Creators: name: Stiskalek, Richard
name: Desmond, Harry
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Galaxies have been observed to exhibit a level of simplicity unexpected in the complex galaxy formation scenario posited by standard cosmology. This is particularly apparent in their dynamics, where scaling relations display much regularity and little intrinsic scatter. However, the parameters responsible for this simplicity have not been identified. Using the Spitzer Photometry & Accurate Rotation Curves galaxy catalogue, we argue that the radial acceleration relation (RAR) between galaxies' baryonic and total dynamical accelerations is the fundamental $1$-dimensional correlation governing the radial (in-disk) dynamics of late-type galaxies. In particular, we show that the RAR cannot be tightened by the inclusion of any other available galaxy property, that it is the strongest projection of galaxies' radial dynamical parameter space, and that all other statistical radial dynamical correlations stem from the RAR plus the non-dynamical correlations present in our sample. We further provide evidence that the RAR's fundamentality is unique in that the second most significant dynamical relation does not possess any of these features. Our analysis reveals the root cause of the correlations present in galaxies' radial dynamics: they are nothing but facets of the RAR. These results have important ramifications for galaxy formation theory because they imply that to explain statistically late-type galaxy dynamics within the disk it is necessary and sufficient to explain the RAR and lack of any significant, partially independent correlation. While simple in some modified dynamics models, this poses a challenge to standard cosmology.
description: 17 pages, 9 figures. Accepted in MNRAS
Additional file 1 of Co-occurring cyber and in-person victimisation of bullying and sexual harassment: the associations to depressive symptoms in Swedish adolescents
Creators: name: Dahlström, Albin
name: Dahlqvist, Heléne
name: Gådin, Katja Gillander
Publisher: name: figshare
Year: 2025
Subjects: Medicine
Biotechnology
Biological Sciences not elsewhere classified
Science Policy
Mental Health
Hematology

description: Supplementary Material 1
Polarization modes of gravitational waves in generalized Proca theory
Creators: name: Dong, Yu-Qi
name: Liu, Yu-Qiang
name: Liu, Yu-Xiao
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we study polarization modes of gravitational waves in generalized Proca theory in the homogeneous and isotropic Minkowski background. The results show that the polarizations of gravitational waves depend on the parameter space of this gravity theory and can be divided into quite rich cases by parameters. In some parameter space, it only allows two tensor modes, i.e., the $+$ and $\times$ modes. In some parameter space, besides tensor modes, it also allows one scalar mode, or two vector (vector-$x$ and vector-$y$) modes, or both one scalar mode and two vector modes. The scalar mode is a mixture mode of a breathing mode and a longitudinal mode, or just a pure breathing mode. Interestingly, it is found that the amplitude of the vector modes is related to the speed of the tensor modes. This allows us to give the upper bound of the amplitude of the vector modes by detecting the speed of the tensor modes. Specifically, if the speed of tensor modes is strictly equal to the speed of light, then the amplitude of vector modes is zero.
description: v2: 28 pages, 1 figure, 2 tables, improved version
Towards Temporal Information Processing – Printed Neuromorphic Circuits with Learnable Filters
Creators: name: Zhao, Haibin
name: Pal, Priyanjana
name: Hefenbrock, Michael
name: Beigl, Michael
name: Tahoori, Mehdi B.
Publisher: name: Association for Computing Machinery (ACM)
Year: 2023
Subjects: printed electronics
neuromorphic computing
temporal information processing
recurrent neural network

description: With the progression of Internet of Things, many novel consumer products such as wearable devices and disposable electronics requires flexibility, biocompatibility and ultra low-costs. However, these features can hardly be matched by traditional silicon-based electronics. In this regard, printed electronics becomes one of the most competitive candidate by offering the aforementioned properties thanks to its additive manufacturing process. To address fundamental signal-processing tasks, printed neuromorphic circuits, emulating the artificial neural networks, have received increasing attention, as they can achieve appealing computational capabilities by assembling simple elemental circuit primitives. However, many target applications for printed electronics are based on processing temporal sensory data, which is beyond the reach of existing printed neuromorphic circuits, since they lack components with time dependencies. To this end, this paper proposes a novel printed temporal processing block that combines existing circuit primitives with a sequence of learnable low-pass filters. We model the proposed circuit and proposed the corresponding training objective to enable the bespoke design of the circuits. Simulations on 15 benchmark time-series datasets reveal that, in comparison to existing printed neuromorphic circuits, the proposed circuits can effectively process temporal information by using 1.5× and 1.3× of device counts and power respectively. Moreover, the achieved classification accuracy reaches 98% of that from classic hardware-agnostic Elman recurrent neural networks.
Nonequilibrium Kondo effect by equilibrium numerical renormalization group method: The hybrid Anderson model subject to a finite spin bias
Creators: name: Fang, Tie-Feng
name: Guo, Ai-Min
name: Sun, Qing-Feng
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate Kondo correlations in a quantum dot with normal and superconducting electrodes, where a spin bias voltage is applied across the device and the local interaction $U$ is either attractive or repulsive. When the spin current is blockaded in the large-gap regime, this nonequilibrium strongly-correlated problem maps into an equilibrium model solvable by the numerical renormalization group method. The Kondo spectra with characteristic splitting due to the nonequilibrium spin accumulation are thus obtained at high precision. It is shown that while the bias-induced decoherence of the spin Kondo effect is partially compensated by the superconductivity, the charge Kondo effect is enhanced out of equilibrium and undergoes an additional splitting by the superconducting proximity effect, yielding four Kondo peaks in the local spectral density. In the charge Kondo regime, we find a universal scaling of charge conductance in this hybrid device under different spin biases. The universal conductance as a function of the coupling to the superconducting lead is peaked at and hence directly measures the Kondo temperature. Our results are of direct relevance to recent experiments realizing negative-$U$ charge Kondo effect in hybrid oxide quantum dots [Nat. Commun. \textbf{8}, 395 (2017)].
description: 7 pages, 3 figures, the version accepted by Physical Review B
NEPHRON STRUCTURES IN RATS TREATED WITH PACLITAXEL FOR BREAST CANCER
Creators: name: Bahronov, J.J.
Publisher: name: Zenodo
Year: 2024

description: Paclitaxel chemotherapy drugs are mitosis inhibitors, block cell division, disrupt the function of microtubules and some enzyme proteins, and also change the metabolism of amino acids and some other substances, such as nucleic acids, lipid synthesis, and affect cellular respiration.
LIS Curriculum in the Indian Scenario
Creators: name: Thangiah, Raja
name: I, Ravi Kumar Kennedy
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 461006
subject: Library studies

description: Library and Information Science (LIS) education is a 100 years old traditional field. There are remarkable achievements in the administration of the library and services to the user community. Curriculum plays a key role in moulding-teaching, learning methods, instructional design, and internship-cum-training during the studies, and extension activities. This paper intends to espouse the present trends of the LIS Education in India, and focus on technology the development of LIS Curriculum, Challenges for implementation of new curriculum, and the Impact of ICT in LIS Education. It concludes that the government should initiate the National Knowledge Committee’s recommendations and improve the curriculum to suit the current needs.
Additional file 2 of ChromInst: a multicentre evaluation of robustness in aneuploidy and structural rearrangement testing
Creators: name: Niu, Wenbin
name: Dai, Shanjun
name: Hu, Linli
name: He, Yao
name: Zhang, Xiqian
name: Xue, Xia
name: Wu, Li
name: Jin, Haixia
name: Liu, Dun
name: Tong, Keya
name: Shi, Senlin
name: Tian, Li
name: Zhou, Yifan
name: Yao, Guidong
name: Lu, Sijia
name: Yao, Yaxin
name: Zhao, Dunmei
name: Jin, Lei
name: Bai, Haiyan
name: Liu, Fenghua
name: Liu, Dongyun
name: Sun, Yingpu
Publisher: name: figshare
Year: 2025
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Supplementary Material 2
Photoluminescence and gain/absorption spectra of a driven-dissipative electron-hole-photon condensate
Creators: name: Hanai, Ryo
name: Littlewood, Peter B.
name: Ohashi, Yoji
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate theoretically nonequilibrium effects on photoluminescence and gain/absorption spectra of a driven-dissipative exciton-polariton condensate, by employing the combined Hartree-Fock-Bogoliubov theory with the generalized random phase approximation extended to the Keldysh formalism. Our calculated photoluminescence spectra is in semiquantitative agreement with experiments, where features such as a blue shift of the emission from the condensate, the appearance of the dispersionless feature of a diffusive Goldstone mode, and the suppression of the dispersive profile of the mode are obtained. We show that the nonequilibrium nature of the exciton-polariton condensate strongly suppresses the visibility of the Bogoliubov dispersion in the negative energy branch (ghost branch) in photoluminescence spectra. We also show that the trace of this branch can be captured as a hole burning effect in gain/absorption spectra. Our results indicate that the nonequilibrium nature of the exciton-polariton condensate strongly reduces quantum depletion, while a scattering channel to the ghost branch is still present.
description: 25 pages, 21 figures
Improving Position Encoding of Transformers for Multivariate Time Series Classification
Creators: name: Foumani, Navid Mohammadi
name: Tan, Chang Wei
name: Webb, Geoffrey I.
name: Salehi, Mahsa
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Transformers have demonstrated outstanding performance in many applications of deep learning. When applied to time series data, transformers require effective position encoding to capture the ordering of the time series data. The efficacy of position encoding in time series analysis is not well-studied and remains controversial, e.g., whether it is better to inject absolute position encoding or relative position encoding, or a combination of them. In order to clarify this, we first review existing absolute and relative position encoding methods when applied in time series classification. We then proposed a new absolute position encoding method dedicated to time series data called time Absolute Position Encoding (tAPE). Our new method incorporates the series length and input embedding dimension in absolute position encoding. Additionally, we propose computationally Efficient implementation of Relative Position Encoding (eRPE) to improve generalisability for time series. We then propose a novel multivariate time series classification (MTSC) model combining tAPE/eRPE and convolution-based input encoding named ConvTran to improve the position and data embedding of time series data. The proposed absolute and relative position encoding methods are simple and efficient. They can be easily integrated into transformer blocks and used for downstream tasks such as forecasting, extrinsic regression, and anomaly detection. Extensive experiments on 32 multivariate time-series datasets show that our model is significantly more accurate than state-of-the-art convolution and transformer-based models. Code and models are open-sourced at \url{https://github.com/Navidfoumani/ConvTran}.
Topological Landau-Ginzburg Theory for Vortices in Superfluid $^4$He
Creators: name: Hatsuda, M.
name: Yahikozawa, S.
name: Ao, P.
name: Thouless, D. J.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We propose a new Landau-Ginzburg theory for arbitrarily shaped vortex strings in superfluid $^4$He. The theory contains a topological term and directly describes vortex dynamics. We introduce gauge fields in order to remove singularities from the Landau-Ginzburg order parameter of the superfluid, so that two kinds of gauge symmetries appear, making the continuity equation and conservation of the total vorticity manifest. The topological term gives rise to the Berry phase term in the vortex mechanical actions.
description: LATEX, 9 pages
Chapter 18 Volcanic anchialine habitats of Lanzarote, in Cave Ecology
Creators: name: Martínez, Alejandro
name: Gonzalez, Brett
Publisher: name: Zenodo
Year: 2019

description: The island of Lanzarote is situated in the northern end of the Canary Islands and hosts one of the most diverse volcanic anchialine ecosystems in the world. Best known for Túnel de la Atlántida, Lanzarote has a diverse set of anchialine habitats, including lakes, pools, and even wells that penetrate into the subterranean aquifer. The porous nature of this volcanic terrain interconnects the different anchialine water bodies, providing suitable habitat for over 40 stygobitic species. Amazingly, this geologically young island is home to many characteristic anchialine fauna, including remipedes, thermosbaenaceans, and thaumatocyprid ostracods that have puzzled zoologists and biogeographers throughout the 20th century. Several stygobites with clear deep-sea affinities are also present, including the polynoid scale worm Gesiella jameensis and the galatheid squat lobster Munidopsis polymorpha, an iconic symbol to Lanzarote. While the known anchialine habitats of Lanzarote are relatively small in comparison to other regions, the unique combination of geology and faunal composition is providing exciting new insights into pathways of dispersal and colonization among anchialine environments. Ultimately these discoveries will continue to push anchialine research forward, stimulating new ideas and testable hypothesis in order to better understand these remarkable environments.
Variational quantum algorithms for scanning the complex spectrum of non-Hermitian systems
Creators: name: Xie, Xu-Dan
name: Xue, Zheng-Yuan
name: Zhang, Dan-Bo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Solving non-Hermitian quantum many-body systems on a quantum computer by minimizing the variational energy is challenging as the energy can be complex. Here, based on energy variance, we propose a variational method for solving the non-Hermitian Hamiltonian, as zero variance can naturally determine the eigenvalues and the associated left and right eigenstates. Moreover, the energy is set as a parameter in the cost function and can be tuned to obtain the whole spectrum, where each eigenstate can be efficiently obtained using a two-step optimization scheme. Through numerical simulations, we demonstrate the algorithm for preparing the left and right eigenstates, verifying the biorthogonal relations, as well as evaluating the observables. We also investigate the impact of quantum noise on our algorithm and show that its performance can be largely improved using error mitigation techniques. Therefore, our work suggests an avenue for solving non-Hermitian quantum many-body systems with variational quantum algorithms on near-term noisy quantum computers.
Writing on Dirty Memory
Creators: name: Yongjune  Kim
Publisher: name: Carnegie Mellon University
Year: 2016
Subjects: subject: Computer Engineering
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Non-volatile memories (NVM) including flash memories and resistive memories have attracted significant interest as data storage media. Flash memories are widely employed in mobile devices and solid-state drives (SSD). Resistive memories are promising as storage class memory and embedded memory applications. Data reliability is the fundamental requirement of NVM as data storage media. However, modern nano-scale NVM suffers from challenges of inter-cell interference (ICI), charge leakage, and write endurance, which threaten the reliability of stored data. In order to cope with these adverse effects, advanced coding techniques including soft decision decoding have been investigated actively. However, current coding techniques do not capture the physical properties of NVM well, so the improvement of data reliability is limited. Although soft decision decoding improves the data reliability by using soft decision values, it degrades read speed performance due to multiple read operations needed to obtain soft decision values. In this dissertation, we explore coding schemes that use side information corresponding to the physical phenomena to improve the data reliability significantly. The side information is obtained before writing data into memory and incorporated during the encoding stage. Hence, the proposed coding schemes maintain the read speed whereas the write speed performance would be degraded. It is a big advantage from the perspective of speed performance since the read speed is more critical than the write speed in many memory applications. First, this dissertation investigates the coding techniques for memory with stuckat defects. The idea of coding techniques for memory with stuck-at defects is employed to handle critical problems of flash memories and resistive memories. For 2D planar flash memories, we propose a coding scheme that combats the ICI, which is a primary challenge of 2D planar flash memories. Also, we propose a coding scheme that reduces the effect of fast detrapping, a degradation factor in 3D vertical flash memories. Finally, we investigate the coding techniques that improve write endurance and power consumption of resistive memories.
Working by Not Quite Working: Resistance as a Technique for Alternative and Oppositional Designs
Creators: name: Pierce, James
Publisher: name: Carnegie Mellon University
Year: 2015
Subjects: Applied Computer Science

description: Since the early 2000s, within the fields of Design and Human-Computer Interaction (HCI) an emerging body of unconventional design work has exemplified and articulated alternative and oppositional functions of design. Examples of such functions include provocatively speculating about alternative futures (speculation), questioning the status quo (critique), and debating political issues (agonism). Prominent examples of alternative and oppositional design have originated within HCI. Others have been heavily discussed, adapted, and critiqued within HCI. Alternative and oppositional designs have been presented under various names: critical design, design fiction, adversarial design, reflective design, ludic design, speculative design… At this moment the list continues to grow while examples of such work proliferate. This work collectively demonstrates the potential for design to engage concerns and goals that pivot around themes of generating radical alternatives and creating productive political, cultural, and social opposition. This thesis argues that there is a body of unconventional design work that becomes cohesive and legible when held together by themes of oppositionality and alternatives, and operating throughout these designs is a technique which I term design resistance. This thesis presents two primary contributions. The first contribution is to isolate and elaborate resistance as a design technique at work across a range of alternative and oppositional designs. I articulate how design resistance works by analyzing a series of design exemplars drawn from HCI and adjacent areas of Design. The second contribution is to extend and refine the overarching technique of design resistance through two design case studies. These design case studies serve the dual function of offering additional insight into design resistance grounded in my own design practice while concretely demonstrating new knowledge relevant to specific domains and concerns within HCI, including sustainable energy consumption and critiques of digital consumer technologies. Together these contributions provide new knowledge for (1) understanding the rise of alternative and oppositional designs, the concerns they are working to engage, and the research gaps they are working to fill, and (2) how to practice alternative and oppositional forms of design using techniques of design resistance.
Quantum Group $σ$ Models
Creators: name: Frishman, Y.
name: Lukierski, J.
name: Zakrzewski, W. J.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Field-theoretic models for fields taking values in quantum groups are investigated. First we consider $SU_q(2)$ $σ$ model ($q$ real) expressed in terms of basic notions of noncommutative differential geometry. We discuss the case in which the $σ$ models fields are represented as products of conventional $σ$ fields and of the coordinate-independent algebra. An explicit example is provided by the $U_q(2)$ $σ$ model with $q\sp{N}=1$, in which case quantum matrices $U_q(2)$ are realised as $2N\times 2N$ unitary matrices. Open problems are pointed out.
description: 20 pages
Wide-Band Multi-Mode Voltage Tuning Oscillators utilizing Phase-Change Switches
Creators: name: Khairi, Ahmad B.
Publisher: name: Carnegie Mellon University
Year: 2016
Subjects: subject: Computer Engineering
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: With the emergence of multi-standard and cognitive radios, the need for reconfigurable RF circuits increased. Such circuits require wide-band quadrature voltage controlled oscillators (QVCOs) to provide the local oscillator (LO) signal for up and down conversion. Wide-band QVCOs performance has lagged behind their narrowband VCO counterparts and numerous circuit techniques have been introduced to bridge the gap. This dissertation presents techniques that have been used to implement wide-band reconfigurable QVCOs with focus on dual-resonance based circuits. System and circuit analysis are performed to understand the tuning-range, phase noise, and power tradeoffs and to consider quadrature phase errors. An 8.8-15.0 GHz actively coupled QVCO and a 13.8-20GHz passively coupled QVCO are presented. Both oscillators employ dual-resonance to achieve extended tuning ranges. Impulse sensitivity functions were used to study the impact of different passive and active device noises on the overall phase noise performance of the dual-resonance oscillator and the actively and passively coupled quadrature oscillators. The quadrature phase error due to the different architecture parameters were investigated for the actively and passively coupled quadrature oscillators. The advantages of using switched capacitor tuning as a major part of passive tuning are identified, and the advantage of employing switches with large bandwidths, such as those associated with phase change materials, is mathematically quantified. Furthermore, a novel method for accurate off chip phase error measurement using discrete components and phase shifters that does not require calibration is introduced.
Una proposta di delimitazione dell'area metropolitana romana
Creators: name: Paratore, Emanuele
name: Banini, Tiziana
name: Paoluzi, Maria Ludovica
name: Romagnoli, Luca
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2019

description: La legge 142/90 ha istituzionalmente introdotto in Italia, anche se con notevole ritardo rispetto a molti altri Paesi ad economia avanzata, il concetto di "area metropolitana", ovvero una forma di governo e di delimitazione territoriale intermedia, sovracomunale, atta a migliorare l'amministrazione delle maggiori realtà urbane nazionali.
description: Semestrale di studi e ricerche di geografia, N. 1-2 (1995): Volume I
An integrated general purpose SiPM based optical module with a high dynamic range
Creators: name: Bretz, T.
name: Engel, R.
name: Hebbeker, T.
name: Kemp, J.
name: Middendorf, L.
name: Peters, C.
name: Schumacher, J.
name: Smida, R.
name: Veberic, D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Silicon photomultipliers (SiPMs) are semiconductor-based light-sensors offering a high gain, a mechanically and optically robust design and high photon detection efficiency. Due to these characteristics, they started to replace conventional photomultiplier tubes in many applications in recent years. This paper presents an optical module based on SiPMs designed for the application in scintillators as well as lab measurements. The module hosts the SiPM bias voltage supply and three pre-amplifiers with different gain levels to exploit the full dynamic range of the SiPMs. Two SiPMs, read-out in parallel, are equipped with light guides to increase the sensitive area. The light guides are optimized for the read-out of wavelength shifting fibers as used in many plastic scintillator detectors. The optical and electrical performance of the module is characterized in detail in laboratory measurements. Prototypes have been installed and tested in a modified version of the Scintillator Surface Detector developed for AugerPrime, the upgrade of the Pierre Auger Observatory. The SiPM module is operated in the Argentinian Pampas and first data proves its usability in such harsh environments.
description: 32 pages, 28 figures, submitted to JINST
RETURN To an Address to His Honour the Lieutenant-Governor, requesting him to cause to be placed before the House copies of all correspondence, Orders in Council, and other papers, that have passed between this Government and the Dominion Government, or any other persons, concerning the refusal by the Dominion Government to issue Crown grants for mineral claims in the "Twenty-mile Belt" in this Province, because of alleged defects in the surveys of such claims, or any other causes relating thereto.
Creators: name: British Columbia. Legislative Assembly
Publisher: name: Victoria, BC : Government Printer
Year: 2014

Abstract
Radio Supernovae as Tev Gamma-Ray Sources
Creators: name: Kirk, J. G.
name: Duffy, P.
name: Ball, Lewis
Publisher: name: arXiv
Year: 1994
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: When applied to the blast wave formed by the explosion of a massive star as a supernova (SN), the theory of diffusive particle acceleration at shock fronts predicts a very high energy density in cosmic rays. Almost immediately after particles begin to be injected into the process, the cosmic ray pressure rises until comparable to the ram-pressure encountered by the shock front. Those supernovae which are observed in the radio band i.e., radio supernovae (RSNe), provide direct evidence of particle acceleration in the form of synchrotron emitting electrons. Furthermore, these objects are particularly interesting, since they are usually surrounded by a relatively dense confining medium. The acceleration of cosmic rays can then lead to the production of very high energy (VHE) gamma-rays which arise from collisions between energetic particles and target nuclei. We estimate the cosmic ray energy density assuming a fraction $ϕ\lesim1$ of the energy available at the shock front is converted into cosmic rays. Combining this with the parameters describing the environment of the SN progenitor, as deduced from observations, and from more detailed modelling, we compute the flux at Earth $\tevflux$ of photons of energy above $1\,$TeV. For the relatively weak but nearby supernova SN1987A we predict $\tevflux=2\times10^{-13}\,\fluxunits$ before the shock front encounters the ring of dense matter seen by the Hubble Space Telescope. Subsequently, the flux is expected to rise further. The medium around SN1993J in M81 is thought to have a density
description: 4 pages uuencoded, compressed postscript. Accepted for publication as a Letter in Astronomy and Astrophysics
Unraveling Femtosecond Spin and Charge Dynamics with EUV T-MOKE Spectroscopy
Creators: name: Probst, Henrike
name: Möller, Christina
name: Schumacher, Maren
name: Brede, Thomas
name: Dewhurst, John Kay
name: Reutzel, Marcel
name: Steil, Daniel
name: Sharma, Sangeeta
name: Jansen, G. S. Matthijs
name: Mathias, Stefan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The magneto-optical Kerr effect (MOKE) in the extreme ultraviolet (EUV) regime has helped to elucidate some of the key processes that lead to the manipulation of magnetism on ultrafast timescales. However, as we show in this paper, the recently introduced spectrally-resolved analysis of such data can lead to surprising experimental observations, which might cause misinterpretations. Therefore, an extended analysis of the EUV magneto-optics is necessary. Via experimental determination of the dielectric tensor, we find here that the non-equilibrium excitation in an ultrafast magnetization experiment can cause a rotation of the off-diagonal element of the dielectric tensor in the complex plane. In direct consequence, the commonly analyzed magneto-optic asymmetry may show time-dependent behaviour that is not directly connected to the magnetic properties of the sample. We showcase such critical observations for the case of ultrafast magnetization dynamics in Ni, and give guidelines for the future analysis of spectrally-resolved magneto-optical data and its comparison with theory.
Additional file 1 of Exercise and cardiovascular health among breast cancer survivors: a scoping review of current observational evidence
Creators: name: Wilson, Oliver W.A.
name: Wojcik, Kaitlyn M.
name: Cohen, Camryn M.
name: Kamil, Dalya
name: Butera, Gisela
name: Matthews, Charles E.
name: Dieli-Conwright, Christina M.
name: Jayasekera, Jinani
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Supplementary Material 1. [76–90]
Bis phenylene flattened 13-membered tetraamide macrocyclic ligand (TAML) for square planar cobalt(III)*
Creators: name: W. Chadwick Ellis
name: Ryabov, Alexander D.
name: Fischer, Andreas
name: Hayden, Joshua A.
name: Longzhu Q. Shen
name: Bominaar, Emile L.
name: Hendrich, Michael P.
name: Collins, Terrence J.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: The preparation, characterization, and evaluation of a cobalt(III) complex with 13-membered tetraamide macrocyclic ligand (TAML) is described. This is a square-planar (X-ray) S = 1 paramagnetic (1H NMR) compound, which becomes an S = 0 diamagnetic octahedral species in excess d5-pyridine. Its one-electron oxidation at an electrode is fully reversible with the lowest E½ value (0.66 V vs SCE) among all investigated CoIII TAML complexes. The oxidation results in a neutral blue species which is consistent with a CoIII/radical-cation ligand. The ease of oxidation is likely due to the two benzene rings incorporated in the ligand structure (whereas there is just one in many other CoIII TAMLs). The oxidized neutral species are unexpectedly EPR silent, presumably due to the π-stacking aggregation. However, they display eight-line hyperfine patterns in the presence of excess of 4-tert-butylpyridine or 4-tert-butyl isonitrile. The EPR spectra are more consistent with the CoIII/radical-cation ligand formulation rather than with a CoIV complex. Attempts to synthesize a similar vanadium complex under the same conditions as for cobalt using [VVO(OCHMe2)3] were not successful. TAML-free decavanadate was isolated instead.
Stability analysis of a periodic system of relativistic current filaments
Creators: name: Vanthieghem, Arno
name: Lemoine, Martin
name: Gremillet, Laurent
Publisher: name: arXiv
Year: 2018
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The nonlinear evolution of current filaments generated by the Weibel-type filamentation instability is a topic of prime interest in space and laboratory plasma physics. In this paper, we investigate the stability of a stationary periodic chain of nonlinear current filaments in counterstreaming pair plasmas. We make use of a relativistic four-fluid model and apply the Floquet theory to compute the two-dimensional unstable eigenmodes of the spatially periodic system. We examine three different cases, characterized by various levels of nonlinearity and asymmetry between the plasma streams: a weakly nonlinear symmetric system, prone to purely transverse merging modes; a strongly nonlinear symmetric system, dominated by coherent drift-kink modes whose transverse periodicity is equal to, or an integer fraction of the unperturbed filaments; a moderately nonlinear asymmetric system, subject to a mix of kink and bunching-type perturbations. The growth rates and profiles of the numerically computed eigenmodes agree with particle-in-cell simulation results. In addition, we derive an analytic criterion for the transition between dominant filament-merging and drift-kink instabilites in symmetric two-beam systems.
description: 24 pages, 24 figures
Il florovivaismo nel Lazio: individuazione e analisi delle aree funzionali nel sistema geo-agrario regionale
Creators: name: Cardillo, Maria Cristina
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2019

description: La coltivazione dei fiori e delle piante ornamentali ha origini assai remote. Le più antiche notizie sulle specie più diffuse nel Lazio e sulle tecniche di lavorazione ci vengono fornite dalle opere di scrittori e poeti latini dalle quali apprendiamo che, già nel I secolo a. C., i Romani si dedicavano alla coltivazione di rose, viole, gigli, iris e narcisi e Roma era un grande centro di consumo verso cui convergeva, grazie all'ausilio delle strade consolari, la maggior parte della produzione del territorio circostante.
description: Semestrale di studi e ricerche di geografia, N. 2 (1996)
Le calamità naturali in Italia dal 414 a. C. al 1997: ricostruzione di una grande ripetitività documentata in tempi storici
Creators: name: Castagnoli, Donata
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2019

description: Il presente lavoro si prefigge anzitutto lo scopo di ricostruire le calamità naturali più catastrofiche che hanno afflitto nei tempi storici il nostro Paese. Se è vero infatti che in questo secolo, ed in particolare negli ultimissimi decenni, assistiamo ad ingenti manifestazioni della vitalità endogena ed esogena dell'Italia, eventi che siamo soliti definire come forme di "instabilità", se retrocediamo indietro nel tempo, a memoria d'uomo e dalle fonti letterarie veniamo facilmente a conoscenza di fenomeni che coinvolgono direttamente e periodicamente il nostro territorio, oserei dire con sostanziale continuità.
description: Semestrale di studi e ricerche di geografia, N. 2 (1997)
Nuclear Structure Relevant to Neutrinoless Double Beta Decay: 76Ge and 76Se
Creators: name: Schiffer, J. P.
name: Freeman, S. J.
name: Clark, J. A.
name: Deibel, C.
name: Fitzpatrick, C. R.
name: Gros, S.
name: Heinz, A.
name: Hirata, D.
name: Jiang, C. L.
name: Kay, B. P.
name: Parikh, A.
name: Parker, P. D.
name: Rehm, K. E.
name: Villari, A. C. C.
name: Werner, V.
name: Wrede, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The possibility of observing neutrinoless double beta decay offers the opportunity of determining the neutrino mass IF the nuclear matrix element were known. Theoretical calculations are uncertain and measurements of the occupations of valence orbits by nucleons active in the decay can be important. The occupation of valence neutron orbits in the ground states of 76Ge and 76Se were determined by precisely measuring cross sections for both neutron-adding and removing transfer reactions. Our results indicate that the Fermi surface is much more diffuse than in theoretical (QRPA) calculations. We find that the populations of at least three orbits change significantly between these two ground states while in the calculations the changes are confined primarily to one orbit.
description: 4 pages, 3 figures
Towards distinguishing Dirac from Majorana neutrino mass with gravitational waves
Creators: name: King, Stephen F.
name: Marfatia, Danny
name: Rahat, Moinul Hossain
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We propose a new method towards distinguishing the Dirac versus Majorana nature of neutrino masses from the spectrum of gravitational waves (GWs) associated with neutrino mass genesis. Motivated by the principle of generating small neutrino masses without tiny Yukawa couplings, we assume generic seesaw mechanisms for both Majorana and Dirac neutrino masses. For Majorana neutrinos, we further assume a spontaneously broken gauged $U(1)_{B-L}$ symmetry, independently of the type of Majorana seesaw mechanism, which gives a cosmic string induced GW signal flat over a wide range of frequencies. For Dirac neutrinos, we assume the spontaneous breaking of a $Z_2$ symmetry, the minimal symmetry choice associated with all Dirac seesaw mechanisms, which is softly broken, generating a peaked GW spectrum from the annihilation of the resulting domain walls. In fact, the GW spectra for all types of Dirac seesaws with such a broken $Z_2$ symmetry are identical, subject to a mild caveat. As an illustrative example, we study the simplest respective type-I seesaw mechanisms, and show that the striking difference in the shapes of the GW spectra can help differentiate between these Dirac and Majorana seesaws, complementing results of neutrinoless double beta decay experiments. We also discuss detailed implications of the recent NANOGrav data for Majorana and Dirac seesaw models.
description: 26 pages, 7 figures, 1 table. Version to appear in PRD