cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Mediastinal lymph nodes segmentation using 3D convolutional neural network ensembles and anatomical priors guiding
Creators: name: Bouget, David
name: Pedersen, André
name: Vanel, Johanna
name: Leira, Haakon O.
name: Langø, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Medical Physics (physics.med-ph)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: I.4.6; J.3

description: As lung cancer evolves, the presence of enlarged and potentially malignant lymph nodes must be assessed to properly estimate disease progression and select the best treatment strategy. Following the clinical guidelines, estimation of short-axis diameter and mediastinum station are paramount for correct diagnosis. A method for accurate and automatic segmentation is hence decisive for quantitatively describing lymph nodes. In this study, the use of 3D convolutional neural networks, either through slab-wise schemes or the leveraging of downsampled entire volumes, is investigated. Furthermore, the potential impact from simple ensemble strategies is considered. As lymph nodes have similar attenuation values to nearby anatomical structures, we suggest using the knowledge of other organs as prior information to guide the segmentation task. To assess the segmentation and instance detection performances, a 5-fold cross-validation strategy was followed over a dataset of 120 contrast-enhanced CT volumes. For the 1178 lymph nodes with a short-axis diameter $\geq10$ mm, our best performing approach reached a patient-wise recall of 92%, a false positive per patient ratio of 5, and a segmentation overlap of 80.5%. The method performs similarly well across all stations. Fusing a slab-wise and a full volume approach within an ensemble scheme generated the best performances. The anatomical priors guiding strategy is promising, yet a larger set than four organs appears needed to generate an optimal benefit. A larger dataset is also mandatory, given the wide range of expressions a lymph node can exhibit (i.e., shape, location, and attenuation), and contrast uptake variations.
description: 18 pages, 8 figures, submitted to Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization
White paper - Transdisciplinarity in Digital Life Norway
Creators: name: Hesjedal, Maria Bårdsen
name: Strand, Roger
Publisher: name: Zenodo
Year: 2021
Subjects: integration
interdisciplinarity
convergence
transdisciplinarity
white paper

description: In 2014, the Research Council of Norway (RCN) launched its strategic initiative for biotechnology research called “Digital Life – Convergence for Innovation”. The Centre for Digital Life Norway (DLN) was created in 2015 as a national virtual centre for biotech research and innovation. At the time of writing the centre consisted of a national networking project, 17 directly funded research projects and 18 associated research projects, as well as a research school and a strategic innovation project. In 2021 the national centre has begun its second period, with more partners and an even clearer mandate to change the Norwegian biotech sector, by way of – metaphorically expressed – being a flagship and acting as a lighthouse.
In the original vision, the flagship and lighthouse character of the Digital Life initiative was above all meant to rely on the development of a new style of knowledge production, characterised by the concepts of “integration”, “interdisciplinarity”, “convergence” and “transdisciplinarity”. Indeed, throughout the processes of policy development, planning and funding – as well as during the operational phase of DLN - the notion of transdisciplinarity has been emphasised: DLN research and DLN activities in general should be, or at least strive towards becoming, transdisciplinary. While the original strategic policy document for Digital Life (RCN, 2014) never explicitly defined transdisciplinarity as such, it was implicitly defined as a mode of collaboration and interaction between research disciplines that was “something more” than interdisciplinarity, with higher ambitions and with an aim of tighter integration of different types of knowledge in order to solve societal challenges.
PLANOWANIE PRZYCHODÓW ZE SPRZEDAŻY NA PRZYKŁADZIE PRZEDSIĘBIORSTWA Z BRANŻY MAGAZYNOWANIE I DZIAŁALNOŚĆ USŁUGOWA WPOMAGAJĄCA TRANSPORT JEL Classification:
Creators: name: RENATA RENATA
Publisher: name: figshare
Year: 2013
Subjects: Economics

description: Raport przedstawia prognozę przyszłorocznej sprzedaży w przedsiębiorstwie działającym w branży magazynowanie i działalność usługowa wspomagająca transport, poprzez ocenę sytuacji finansowej przedsiębiorstwa, planowanie przychodów ze sprzedaży i prognozę sprawozdań finansowych na kolejny rok.
Planowanie przychodow ze sprzedazy na przykladzie przedsiebiorstwa z branzy m.in. handel hurtowy i komisowy, z wylaczeniem handlu pojazdami samochodowymi, motocyklami
Creators: name: Wierzbicka, Dagmara
Publisher: name: figshare
Year: 2013
Subjects: Economics

description: Poniższy raport przedstawia ocenę sytuacji finansowej przedsiębiorstwa, prognozowanie przyszłorocznej sprzedaży przedsiębiorstwa oraz prognostyczne sprawozdanie finansowe na kolejny rok
A High-dimensional Sparse Fourier Transform in the Continuous Setting
Creators: name: Chen, Liang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Information Theory (cs.IT)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: G.1.2; F.2.1
subject: 41A63

description: In this paper, we theoretically propose a new hashing scheme to establish the sparse Fourier transform in high-dimensional space. The estimation of the algorithm complexity shows that this sparse Fourier transform can overcome the curse of dimensionality. To the best of our knowledge, this is the first polynomial-time algorithm to recover the high-dimensional continuous frequencies.
MGait: Model-Based Gait Analysis Using Wearable Bend and Inertial Sensors
Creators: name: An, Sizhe
name: Tuncel, Yigit
name: Basaklar, Toygun
name: Krishnakumar, Gokul Krishna
name: Bhat, Ganapati
name: Ogras, Umit
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Movement disorders, such as Parkinson's disease, affect more than 10 million people worldwide. Gait analysis is a critical step in the diagnosis and rehabilitation of these disorders. Specifically, step length provides valuable insights into the gait quality and rehabilitation process. However, traditional approaches for estimating step length are not suitable for continuous daily monitoring since they rely on special mats and clinical environments. To address this limitation, we present a novel and practical step-length estimation technique using low-power wearable bend and inertial sensors. Experimental results show that the proposed model estimates step length with 5.49% mean absolute percentage error and provides accurate real-time feedback to the user.
Synthesis of Hybrid Automata with Affine Dynamics from Time-Series Data
Creators: name: Soto, Miriam García
name: Henzinger, Thomas A.
name: Schilling, Christian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: I.6.5; F.1.0
subject: 34-04

description: Formal design of embedded and cyber-physical systems relies on mathematical modeling. In this paper, we consider the model class of hybrid automata whose dynamics are defined by affine differential equations. Given a set of time-series data, we present an algorithmic approach to synthesize a hybrid automaton exhibiting behavior that is close to the data, up to a specified precision, and changes in synchrony with the data. A fundamental problem in our synthesis algorithm is to check membership of a time series in a hybrid automaton. Our solution integrates reachability and optimization techniques for affine dynamical systems to obtain both a sufficient and a necessary condition for membership, combined in a refinement framework. The algorithm processes one time series at a time and hence can be interrupted, provide an intermediate result, and be resumed. We report experimental results demonstrating the applicability of our synthesis approach.
Hybrid model of proton structure functions
Creators: name: Kulagin, S. A.
name: Barinov, V. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We develop a "hybrid" model of the proton inelastic structure functions applicable in a wide region of invariant mass of produced states $W$ and invariant momentum transfer $Q$ including deep inelastic scattering (DIS), nucleon resonance production as well as the region close to inelastic threshold. DIS is described in terms of the parton distributions together with higher-twist corrections from an available global QCD fit. The resonant part is addressed in terms of the Breit-Wiegner contributions from five states including the $Δ(1232)$ resonance, the $N(1440)$ Roper resonance, and three effective resonances describing the second and third resonance regions. The couplings of the nucleon resonances to photon are described in terms of helicity amplitudes. The nonresonant background is addressed in terms of DIS structure functions smoothly extrapolated to low-$W$ and low-$Q$ values with the proper behavior at the real photon limit $Q^2=0$ as well as near the inelastic threshold. We independently treat the transverse $F_T$ and the longitudinal $F_L$ structure function and fix the model parameters from a global analysis of the world hydrogen electroproduction and photoproduction cross-section data. We demonstrate a very good performance of the model by comparing our predictions with data on differential cross sections and the structure functions $F_2$ and $R=F_L/F_T$.
description: 54 pages, 42 figures. Final version published in Phys. Rev. C including Supplemental Material
PLANOWANIE PRZYCHODÓW ZE SPRZEDAŻY NA PRZYKŁADZIE PRZEDSIĘBIORSTWA Z BRANŻY MAGAZYNOWANIE I DZIAŁALNOŚĆ USŁUGOWA WPOMAGAJĄCA TRANSPORT
Creators: name: RENATA RENATA
Publisher: name: figshare
Year: 2013
Subjects: Economics

description: Raport przedstawia prognozę przyszłorocznej sprzedaży w przedsiębiorstwie działającym w branży magazynowanie i działalność usługowa wspomagająca transport, poprzez ocenę sytuacji finansowej przedsiębiorstwa, planowanie przychodów ze sprzedaży i prognozę sprawozdań finansowych na kolejny rok
AIDS risk taking behaviour among homosexual men : sociodemographic markers and policy implications
Creators: name: Hogg, Robert S.
name: Craib, Kevin J.P.
name: Willoughby, Brian
name: Sestak, Philip
name: Montaner, Julio
name: Schechter, Martin T.
Publisher: name: Centre for Health Services and Policy Research (CHSPR)
Year: 2014

description: The objective of this study is to determine whether there are sociodemographic markers which distinguish seronegative men who continue to place themselves at risk through unprotected anal intercourse with casual sex partners from those seronegative men who do not participate in this practice. Eligible subjects were identified in large urban cohort of homosexual men as those who were HIV negative and who completed an index visit between October 1989 and September 1990 and reported having sexual contact with casual partners during the previous 12 month period. Risk takers were those who reported having unprotected anal receptive or insertive intercourse with casual partners; while the remaining subjects (controls) were those who reported either not engaging in anal intercourse with casual partners or using condoms at all times when they did. Nonparametric methods were used to compare sociodemographic variables between the risk takers and the controls. A total of 139 seronegative men were eligible. Of these, 31 subjects were included in the risk taking group and 108 in the control group. Risk takers were significantly younger (median age of 35 versus 40 years; p=0.013) and were more likely to have incomes below $10,000 (37 versus 12 per cent; p=0.002), to smoke cigarettes (58 versus 35 per cent; p=0.022), and to use nitrite inhalants (55 versus 30 per cent; p=0.010) than controls. These results indicate that there are number sociodemographic variables that characterize seronegative men who continue to place themselves at risk through unprotected anal intercourse with casual sex partners. Overall our findings suggest the importance of targeting AIDS prevention activities to younger gay men, to those of lower socioeconomic status, and to those exhibiting other risk behaviour such as smoking and use of nitrite inhalants.
Emergent statistical mechanics from properties of disordered random matrix product states
Creators: name: Haferkamp, Jonas
name: Bertoni, Christian
name: Roth, Ingo
name: Eisert, Jens
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The study of generic properties of quantum states has led to an abundance of insightful results. A meaningful set of states that can be efficiently prepared in experiments are ground states of gapped local Hamiltonians, which are well approximated by matrix product states. In this work, we introduce a picture of generic states within the trivial phase of matter with respect to their non-equilibrium and entropic properties: We do so by rigorously exploring non-translation-invariant matrix product states drawn from a local i.i.d. Haar-measure. We arrive at these results by exploiting techniques for computing moments of random unitary matrices and by exploiting a mapping to partition functions of classical statistical models, a method that has lead to valuable insights on local random quantum circuits. Specifically, we prove that such disordered random matrix product states equilibrate exponentially well with overwhelming probability under the time evolution of Hamiltonians featuring a non-degenerate spectrum. Moreover, we prove two results about the entanglement Renyi entropy: The entropy with respect to sufficiently disconnected subsystems is generically extensive in the system-size, and for small connected systems the entropy is almost maximal for sufficiently large bond dimensions.
description: 11 pages
DISPLACEMENT MONITORING OF ENGINEERING OBJECTS USING GPS-RTK TECHNIQUE
Creators: name: Szpunar, Ryszard
name: Walo, Janusz
Publisher: name: figshare
Year: 2013
Subjects: subject: Planetary Science
subject: Aerospace Engineering
subject: FOS: Mechanical engineering

description: Determination of the geometrical characteristic of engineering objects is necessary to their safe exploitation. Modern terrestrial and satellite measuring techniques make possible the permanent monitoring of the objects. The techniques make also possible measuring reference object and moving object at the same time. Poster presents a concept how to take advantage of kinematics satellite GPS-RTK measurements and FIR filters to determine of few millimetres displacement.
Topics in retail forecasting
Creators: name: Waller, Daniel
Publisher: name: Lancaster University
Year: 2020

description: Retail forecasting is a diverse and dynamic research area encompassing a variety of different topics. The advent of online channels, the increasing complexity of product ranges, and the shortening lifespan of many items are as examples of some of the new challenges that maintain the importance of improving forecasting in this domain. This thesis aims to address questions in retail forecasting that are closely linked with relevant problems faced in the industry. As such, the problems have been identified through a combination of reviewing the academic literature, discussion, and engagement with practitioners. This thesis starts by considering the situation where demand series are influenced by multiple seasonal and calendar effects. This is a challenge which is widespread due to high frequency sampling and decision making in retailing. We develop a new model to accommodate flexibility in modelling complex seasonal patterns, which also aids with mitigating the effect of short demand histories on forecasting performance. The new model is embedded in an innovations state-space formulation and it is demonstrated empirically using wholesale food data to provide competitive forecasting accuracy to established benchmarks. Next, the dual problems of SKU-level model parameter estimation and forecasting are considered. For retailers experiencing frequent promotional activities, this is a principal issue. The parameter estimates provide insights about the elasticity of different factors on demand for the SKU, and therefore inform marketing planning. Accurate forecasts, for both promotional and baseline periods, support other functions such as replenishment and inventory management. First, a geometric parameter inheritance procedure is proposed, which uses aggregate information within a product hierarchy to improve parameter estimates under certain assumptions. At brand level, it is typically easier to better estimate elasticity effects, making this strategy preferable. Second, a debiasing approximation is derived for the forecasting procedure, which is demonstrated to reduce bias, whilst remaining competitive in terms of forecast accuracy, as shown in a simulation study. The debiasing approximation is then evaluated with an inventory simulation study, which examines the conditions under which improvements in inventory performance can be gained. The conclusions give useful insights for inventory managers, and demonstrate that bias is a significant factor in inventory performance.
Social contagion on higher-order structures
Creators: name: Barrat, Alain
name: de Arruda, Guilherme Ferraz
name: Iacopini, Iacopo
name: Moreno, Yamir
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this Chapter, we discuss the effects of higher-order structures on SIS-like processes of social contagion. After a brief motivational introduction where we illustrate the standard SIS process on networks and the difference between simple and complex contagions, we introduce spreading processes on higher-order structures starting from the most general formulation on hypergraphs and then moving to several mean-field and heterogeneous mean-field approaches. The results highlight the rich phenomenology brought by taking into account higher-order contagion effects: both continuous and discontinuous transitions are observed, and critical mass effects emerge. We conclude with a short discussion on the theoretical results regarding the nature of the epidemic transition and the general need for data to validate these models.
description: 18 pages, 5 figures; Book chapter
Yield strength insensitivity in a dual-phase high entropy alloy after prolonged high temperature annealing
Creators: name: Ahmed, Junaid
name: Daly, Matthew
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recent studies of FeMnCoCr-based high entropy alloys have demonstrated uncommon deformation behaviors such as transformation-induced plasticity, which were largely believed to be restricted to select families of steels. Coupled with the potential for entropy stabilization of high symmetry phases at high temperatures, this system represents a promising class of materials for structural applications in extreme environments. Yet, transformation-induced plasticity mechanisms are notably sensitive to microstructure parameters and the literature offers examples of deleterious decomposition of high entropy alloys under heat treatment, which raises concerns of resiliency in mechanical performance. Here, we evaluate the evolution of microstructure and mechanical properties of a FeMnCoCr high entropy alloy after prolonged heat treatment at high temperature. Microstructures are found to retain their characteristic austenite/martensite features, with parent face-centered cubic grains partitioned by hexagonal close-packed laths after heat treatment at 1200 C for up to 48 hours. Results of mechanical testing reveal an unusual insensitivity of this alloy to grain growth-induced weakening effects. Namely, the yield strengths of FeMnCoCr samples are observed to remain constant across all heat treatment conditions, despite a near four-fold increase in the grain size. Close examination of post-heat treatment microstructures reveals a dramatic decrease in the inter-lath spacing at longer durations, which segments parent austenite grains. This crystal partitioning counteracts conventional grain growth-induced weakening by introducing additional barriers for dislocation pile-up. These results offer new insights into the mechanical resiliency of this transformation-induced plasticity high entropy alloy under prolonged high temperature heat treatment.
Planowanie przychodow ze sprzedazy na przykladzie przedsiebiorstwa z branzy m.in. handel hurtowy i komisowy, z wylaczeniem handlu pojazdami samochodowymi, motocyklami
Creators: name: Wierzbicka, Dagmara
Publisher: name: figshare
Year: 2013
Subjects: Economics

description: Poniższy raport przedstawia ocenę sytuacji finansowej przedsiębiorstwa, prognozowanie przyszłorocznej sprzedaży przedsiębiorstwa oraz prognostyczne sprawozdanie finansowe na kolejny rok.
Visual Cues and Error Correction for Translation Robustness
Creators: name: Li, Zhenhao
name: Rei, Marek
name: Specia, Lucia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Neural Machine Translation models are sensitive to noise in the input texts, such as misspelled words and ungrammatical constructions. Existing robustness techniques generally fail when faced with unseen types of noise and their performance degrades on clean texts. In this paper, we focus on three types of realistic noise that are commonly generated by humans and introduce the idea of visual context to improve translation robustness for noisy texts. In addition, we describe a novel error correction training regime that can be used as an auxiliary task to further improve translation robustness. Experiments on English-French and English-German translation show that both multimodal and error correction components improve model robustness to noisy texts, while still retaining translation quality on clean texts.
description: Accepted at Findings of EMNLP 2021; add acknowledgements
PLANOWANIE FINANSOWE PRZYSZŁYCH PRZYCHODÓW PRZEDSIĘBIORSTWA Z BRANŻY ELEKTROTECHNICZNEJ
Creators: name: Kurzajewska, Magdalena
Publisher: name: figshare
Year: 2013
Subjects: Economics

description: Niniejszy raport przedstawia planowanie przyszłorocznych przychodów ze sprzedaży w przedsiębiorstwie działającym w branży elektrotechnicznej
Exponentiable Grothendieck categories in flat Algebraic Geometry
Creators: name: Di Liberti, Ivan
name: González, Julia Ramos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Geometry (math.AG)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 14A22, 14F06, 18B25, 18C35, 18F10, 18M05, 18E10

description: We introduce and describe the $2$-category $\mathsf{Grt}_{\flat}$ of Grothendieck categories and flat morphisms between them. First, we show that the tensor product of locally presentable linear categories $\boxtimes$ restricts nicely to $\mathsf{Grt}_{\flat}$. Then, we characterize exponentiable objects with respect to $\boxtimes$: these are continuous Grothendieck categories. In particular, locally finitely presentable Grothendieck categories are exponentiable. Consequently, we have that, for a quasi-compact quasi-separated scheme $X$, the category of quasi-coherent sheaves $\mathsf{Qcoh}(X)$ is exponentiable. Finally, we provide a family of examples and concrete computations of exponentials.
description: Final version. Accepted for publication
Fisher zeros and persistent temporal oscillations in non-unitary quantum circuits
Creators: name: Basu, Sankhya
name: Arovas, Daniel P.
name: Gopalakrishnan, Sarang
name: Hooley, Chris A.
name: Oganesyan, Vadim
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a quantum circuit with measurements and post-selection that exhibits a panoply of space- and/or time-ordered phases, from ferromagnetic order to spin-density waves to time crystals. Unlike the time crystals that have been found in unitary models, those that occur here are \emph{incommensurate} with the drive frequency. The period of the incommensurate time-crystal phase may be tuned by adjusting the circuit parameters. We demonstrate that the phases of our quantum circuit, including the inherently non-equilibrium dynamical ones, correspond to complex-temperature equilibrium phases of the exactly solvable square-lattice anisotropic Ising model.
description: v1-->v2: significantly revised, new co-author added; small typo fixed in the most recent version 3
Vertical configuration spaces and their homology
Creators: name: Bianchi, Andrea
name: Kranhold, Florian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55R80, 55R25, 55R20, 55M99

description: We introduce ordered and unordered configuration spaces of 'clusters' of points in an Euclidean space $\mathbb{R}^d$, where points in each cluster satisfy a 'verticality' condition, depending on a decomposition $d=p+q$. We compute the homology in the ordered case and prove homological stability in the unordered case.
description: 29 pages, 9 figures; accepted version
An unusual presentation of isolated polydactyly: four limbs hexadactyly
Creators: name: Maggi, Sonia
name: Viganò, Cristina
name: Colombo, Pierluigi
name: Menon, Alessandra
name: Compagnoni, Riccardo
name: Cortinovis, Francesca
name: Morandi, Francesco
name: Crosio, Alessandro
name: Randelli, Pietro Simone
Publisher: name: Archives of Medicine & Surgery University of Milan
Year: 2020

description: Purpose: Hexadactyly is a congenital physical anomaly, potentially affecting the hand or the food. Aim of this study is to report two case reports of hexadactyly involving the four limbs, with a literature review focused on this pathology. Methods: This article describes the treatment proposed in two patients with hexadactyly, from the birth to one year follow-up. A literature search was performed to compare the different treatment choices. Result: The treatments described for hexadactyly can be conservative or surgical, with good results in both cases. The main aspect to consider is the functionality of the extra-digits. Conclusion: Hexadactyly of the four limbs is a relevant clinical condition under many aspects and requires a careful multidisciplinary evaluation. Level of evidence: V
description: Archives of Medicine & Surgery University of Milan, V. 1 N. 1 (2020)
Gravitational Effective Field Theory Islands, Low-Spin Dominance, and the Four-Graviton Amplitude
Creators: name: Bern, Zvi
name: Kosmopoulos, Dimitrios
name: Zhiboedov, Alexander
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze constraints from perturbative unitarity and crossing on the leading contributions of higher-dimension operators to the four-graviton amplitude in four spacetime dimensions, including constraints that follow from distinct helicity configurations. We focus on the leading-order effect due to exchange by massive degrees of freedom which makes the amplitudes of interest infrared finite. In particular, we place a bound on the coefficient of the $R^3$ operator that corrects the graviton three-point amplitude in terms of the $R^4$ coefficient. To test the constraints we obtain nontrivial effective field-theory data by computing and taking the large-mass expansion of the one-loop minimally-coupled four-graviton amplitude with massive particles up to spin 2 circulating in the loop. Remarkably, we observe that the leading EFT coefficients obtained from both string and one-loop field-theory amplitudes lie in small islands. The shape and location of the islands can be derived from the dispersive representation for the Wilson coefficients using crossing and assuming that the lowest-spin spectral densities are the largest. Our analysis suggests that the Wilson coefficients of weakly-coupled gravitational physical theories are much more constrained than indicated by bounds arising from dispersive considerations of $2 \to 2$ scattering. The one-loop four-graviton amplitudes used to obtain the EFT data are computed using modern amplitude methods, including generalized unitarity, supersymmetric decompositions and the double copy.
description: Minor corrections in Fig. 8, ancillary files, and text -- 123 pages, 23 figures, 2 Mathematica ancillary files
Analiza finansowa przedsiębiorstw z punktu widzenia zarządzającego przedsiębiorstwem.
Creators: name: Szczepaniak, Weronika
Publisher: name: figshare
Year: 2013
Subjects: subject: Statistics
subject: FOS: Mathematics
subject: Computer Engineering

description: Analiza finansowa przedsiębiorstw z punktu widzenia zarządzającego przedsiębiorstwem.
Kinematic Alignment technique for Total Knee Arthroplasty: a scoping review
Creators: name: Calanna, Filippo
name: Compagnoni, Riccardo
name: Ferrua, Paolo
name: Lo Duca, Matteo
name: Randelli, Pietro
Publisher: name: Archives of Medicine & Surgery University of Milan
Year: 2020

description: Purpose This scoping review aims to analyze history, philosophy, surgical technique, and results of Kinematic Alignment (KA) in total knee arthroplasty (TKA). KA co-aligns the axes and joint lines of the components with the three «kinematic» axes and joint lines of the pre-arthritic or native knee without placing restrictions on the pre-operative deformity and post-operative correction. Methods A scoping review of the existing literature utilizing PubMed was performed in march 2020. 44 studies published in peer-reviewed journals over the last ten years in English were reviewed. Results The growing interest in KA is confirmed by the presence of several studies comparing MA and KA techniques reported in the literature. Many reviews and meta-analysis showed that the functional outcomes and flexion range of motion of the KA technique were similar or even better than ones of the mechanically aligned MA implants. Conclusion The KA TKA is an effective alternative method to MA TKA, striving to increase patients satisfaction after TKA. Multicenter RCTs with longer follow up and larger sample studies are needed to clarify its longevity and results. Keywords: Kinematic alignment; Knee; Mechanical alignment; Outcome; Total knee arthroplasty. Level of evidence: V
description: Archives of Medicine & Surgery University of Milan, V. 1 N. 1 (2020)
Integrazione dei temi di sostenibilità dell’Agenda 2030 nelle strategie aziendali: Literature Review e Content Analysis con NVivo
Creators: name: Ceglia, Ilenia
Publisher: name: Department of Economics and Business Studies, University of Genoa
Year: 2024
Subjects: Management

description: The concept of sustainability is based on three factors: social, economic and environmental, the Triple Bottom Line (TBL), which must guide business activities. Companies play a vital role because they can significantly contribute to achieving the sustainability objectives of the 2030 Agenda. This contribution, through a literature review and content analysis aims to describe the complete picture of how management literature has dealt with the topic of sustainability. The research provides several contributions: from an academic point of view, it describes the topics mostly covered in the literature and those still unexplored that could help companies consider sustainability objectives. Moreover, the research allows to have a strategic business management perspective, outlining some of the areas unexplored up to now and identifying future lines of research. They can direct companies towards a complete management and integration of global sustainability objectives, within the context of business strategies.
Generic guidelines for assessing worker exposure to antisapstain chemicals in the lumber industry
Creators: name: Teschke, Kay
name: Fenske, Richard
name: Van Netten, Chris
name: Jin, Andrew
name: Marion, Stephen A.
Publisher: name: The University of British Columbia
Year: 2008

description: The objective of the generic exposure assessment guidelines is to provide exposure data which can be used in risk assessments by government agencies or the lumber industry itself, and which will address the unique characteristics of the lumber treatment process not found when pesticides are applied in other settings such as agriculture.
Fisher Task Distance and Its Application in Neural Architecture Search
Creators: name: Le, Cat P.
name: Soltani, Mohammadreza
name: Dong, Juncheng
name: Tarokh, Vahid
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We formulate an asymmetric (or non-commutative) distance between tasks based on Fisher Information Matrices, called Fisher task distance. This distance represents the complexity of transferring the knowledge from one task to another. We provide a proof of consistency for our distance through theorems and experiments on various classification tasks from MNIST, CIFAR-10, CIFAR-100, ImageNet, and Taskonomy datasets. Next, we construct an online neural architecture search framework using the Fisher task distance, in which we have access to the past learned tasks. By using the Fisher task distance, we can identify the closest learned tasks to the target task, and utilize the knowledge learned from these related tasks for the target task. Here, we show how the proposed distance between a target task and a set of learned tasks can be used to reduce the neural architecture search space for the target task. The complexity reduction in search space for task-specific architectures is achieved by building on the optimized architectures for similar tasks instead of doing a full search and without using this side information. Experimental results for tasks in MNIST, CIFAR-10, CIFAR-100, ImageNet datasets demonstrate the efficacy of the proposed approach and its improvements, in terms of the performance and the number of parameters, over other gradient-based search methods, such as ENAS, DARTS, PC-DARTS.
description: Published in IEEE Access, Volume 10, 2022
Sales planning on the example of companies of the robot associated with the construction of civil engineering and water Ficner K. Salata A.
Creators: name: Ficner, Katarzyna
name: Salata, Anna
Publisher: name: figshare
Year: 2013
Subjects: Economics

description: Niniejsza praca prezentuje prognozę przychodów ze sprzedaży na przykładzie przedsiębiorstw wykonujących działalność związaną z budową inżynierii lądowej i wodnej. Praca zawiera obliczenia zastosowane do danych finansowych analizowanych przedsiębiorstw , sporządzone w formie uproszczonej bilans pro-forma i rachunek zysków i strat. This paper presents a forecast of revenues from the sale of the example of companies engaged in activities related to the construction of civil engineering. The work includes calculations applied to financial data analyzed companies, drawn up in the form of a simplified pro-forma balance sheet and profit and loss account.
Planowanie przychodow ze sprzedazy na przykladzie przedsiebiorstw z branzy robot zwiazanych z budowa obiektow inzynierii ladowej i wodnej
Creators: name: Chojnowska, Joanna
name: Dubiel, Marcin
name: Wowczuk, Alina
Publisher: name: figshare
Year: 2013
Subjects: Economics

description: The aim of the work is to plan sales as an example, companies in the works related to the construction of buildings and civil engineering.
planowanie przychodow ze sprzedazy Potasiak K, Frys J
Creators: name: Potasiak Kamila
Publisher: name: figshare
Year: 2013
Subjects: Economics

description: Celem niniejszej pracy jest dokonanie prognozy sprzedaży na rok 2012 dla dwóch przedsiębiorstw z branży 45

 The aim of this study is forecasting sales for the year 2012 for the two companies from the branch 45
A Specification-Guided Framework for Temporal Logic Control of Nonlinear Systems
Creators: name: Li, Yinan
name: Sun, Zhibing
name: Liu, Jun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper proposes a specification-guided framework for control of nonlinear systems with linear temporal logic (LTL) specifications. In contrast with well-known abstraction-based methods, the proposed framework directly characterizes the winning set, i.e., the set of initial conditions from which a given LTL formula can be realized, over the continuous state space of the system via a monotonic operator. Following this characterization, an algorithm is proposed to practically approximate the operator via an adaptive interval subdivision scheme, which yields a finite-memory control strategy. We show that the proposed algorithm is sound for full LTL specifications, and robustly complete for specifications recognizable by deterministic Büchi automata (DBA), the latter in the sense that control strategies can be found whenever the given specification can be satisfied with additional bounded disturbances. Without having to compute and store the abstraction and the resulting product system with the DBA, the proposed method is more memory efficient, which is demonstrated by complexity analysis and performance tests. A pre-processing stage is also devised to reduce computational cost via a decomposition of the specification. We show that the proposed method can effectively solve real-world control problems such as jet engine compressor control and motion planning for manipulators and mobile robots.
description: To appear in IEEE Transactions on Automatic Control
Dynamics of Coastally Trapped Mesoscale Ridges in the Lower Atmosphere.
Creators: name: Reason, C. J. C.
name: Steyn, Douw G.
Publisher: name: American Meteorological Society
Year: 2011

description: The dynamics of coastally trapped ridges that propagate in the marine layers of western North America and southeastern Australia is examined. A nonlinear semigeostrophic theory shows that the coastal ridges develop initially as an alongshore intrusion of denser marine air that is driven by the synoptic-scale pressure gradient. Nonlinear Kelvin waves evolve with the intruding flow on a slower time scale governed by the dynamic parameters. If dispersive effects balance the nonlinearities, then these waves evolve into solitary form. Otherwise, the nonlinear waves steepen so that the leading edge of the ridge eventually propagates as a shock.The theory is applied to two ridging events in California and one in southeastern Australia. In each case, good agreement is found between theory and observations of the evolution times and propagation speeds of the coastal ridges. The theory also explains the observed behavior of the events at prominent convex bends and gaps in the coastal topography. Copyright 1992 American Meteorological Society (AMS). Permission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act or that satisfies the conditions specified in Section 108 of the U.S. Copyright Act (17 USC §108, as revised by P.L. 94-553) does not require the AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a web site or in a searchable database, or other uses of this material, except as exempted by the above statement, requires written permission or a license from the AMS. Additional details are provided in the AMS Copyright Policy, available on the AMS Web site located at (http://www.ametsoc.org/) or from the AMS at 617-227-2425 or copyright@ametsoc.org.
Supplementary document for Multispectral Stealth Multilayer Etched Film Structure Based on Ultrathin Silver - 6886356.pdf
Creators: name: Wang, He yan
name: Ren, Yingzheng
name: Geng, Wenjing
name: Han, Lin
name: Zhang, Yilei
name: Zheng, Danni
name: Zhengang, Lu
name: Tan, Jiubin
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: The equivalent dielectric constants;Infrared emissivity curves;The emissivity;Measured Al element atomic concentration
The Critical Role of Organizational Leaders in Fostering Employee Engagement in the Time of Pandemic
Creators: name: Canavesi, Alice
name: Minelli, Eliana
Publisher: name: Department of Economics and Business Studies, University of Genoa
Year: 2024
Subjects: Organization

description: With the advent of covid-19 and the exacerbation of the VUCA world, organizational models have been revised and a remote working environment has become the new reality for several firms. The purpose of the present study was to identify the emotional, social and cognitive intelligence competencies of organizational leaders that are deemed particularly important by their subordinates to increase engagement within this scenario. The methodology used consisted of an exploratory quantitative study on online surveys from 188 participants working in diverse Italian organizational contexts. What emerged is that leaders in times of crisis are expected to dominate reality by managing conflicting emotions and reducing uncertainties to transform the world into a rational and intelligible setting, while allowing their subordinates the right degree of autonomy. The paper contributes to the literature on organizational leadership competencies and responses to crises by providing practical implications and future research avenues.
The Reservoir Learning Power across Quantum Many-Boby Localization Transition
Creators: name: Xia, Wei
name: Zou, Jie
name: Qiu, Xingze
name: Li, Xiaopeng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Harnessing the quantum computation power of the present noisy-intermediate-size-quantum devices has received tremendous interest in the last few years. Here we study the learning power of a one-dimensional long-range randomly-coupled quantum spin chain, within the framework of reservoir computing. In time sequence learning tasks, we find the system in the quantum many-body localized (MBL) phase holds long-term memory, which can be attributed to the emergent local integrals of motion. On the other hand, MBL phase does not provide sufficient nonlinearity in learning highly-nonlinear time sequences, which we show in a parity check task. This is reversed in the quantum ergodic phase, which provides sufficient nonlinearity but compromises memory capacity. In a complex learning task of Mackey-Glass prediction that requires both sufficient memory capacity and nonlinearity, we find optimal learning performance near the MBL-to-ergodic transition. This leads to a guiding principle of quantum reservoir engineering at the edge of quantum ergodicity reaching optimal learning power for generic complex reservoir learning tasks. Our theoretical finding can be readily tested with present experiments.
description: 6 pages, 5 figures
A quantum binary classifier based on cosine similarity
Creators: name: Pastorello, Davide
name: Blanzieri, Enrico
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce the quantum implementation of a binary classifier based on cosine similarity between data vectors. The proposed quantum algorithm evaluates the classifier on a set of data vectors with time complexity that is logarithmic in the product of the set cardinality and the dimension of the vectors. It is based just on a suitable state preparation like the retrieval from a QRAM, a SWAP test circuit (two Hadamard gates and one Fredkin gate), and a measurement process on a single qubit. Furthermore we present a simple implementation of the considered classifier on the IBM quantum processor ibmq_16_melbourne. Finally we describe the combination of the classifier with the quantum version of a K-nearest neighbors algorithm within a hybrid quantum-classical structure.
description: 12 pages, 2 figures
IN03215 Laṅkātilaka Inscription of the Reign of Bhuvanaikabāhu V
Creators: name: Paranavitana, S.
Publisher: name: Zenodo
Year: 2020
Subjects: IN03215
UoC
Laṅkātilaka
Bhuvanaikabāhu V

description: IN03215 Laṅkātilaka Inscription of the Reign of Bhuvanaikabāhu V - Transcript and Translation Source: Paranavitana, S. (1960). ‘Lankatilaka Inscriptions,’ University of Ceylon Review 18, nos. 1&2, pp. 1–45. http://dlib.pdn.ac.lk/handle/123456789/1366
Transdisciplinary life science – a Digital Life Norway course - Data Management
Creators: name: Korbinian Bösl
Publisher: name: Zenodo
Year: 2020
Subjects: Data Management
Licensing
Data Management Plan

description: Slides from "Transdisciplinary life science – a Digital Life Norway course" for PhD students from the Centre for Digital Life Norway on Data Management.

 
description: CC-BY 4.0 if not indicated else wise
Estimation of correlations and non-separability in quantum channels via unitarity benchmarking
Creators: name: Girling, Matthew
name: Cirstoiu, Cristina
name: Jennings, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The ability to transfer coherent quantum information between systems is a fundamental component of quantum technologies and leads to coherent correlations within the global quantum process. However correlation structures in quantum channels are less studied than those in quantum states. Motivated by recent techniques in randomized benchmarking, we develop a range of results for efficient estimation of correlations within a bipartite quantum channel. We introduce sub-unitarity measures that are invariant under local changes of basis, generalize the unitarity of a channel, and allow for the analysis of coherent information exchange within channels. Using these, we show that unitarity is monogamous, and provide a novel information-disturbance relation. We then define a notion of correlated unitarity that quantifies the correlations within a given channel. Crucially, we show that this measure is strictly bounded on the set of separable channels and therefore provides a witness of non-separability. Finally, we describe how such measures for effective noise channels can be efficiently estimated within different randomized benchmarking protocols. We find that the correlated unitarity can be estimated in a SPAM-robust manner for any separable quantum channel, and show that a benchmarking/tomography protocol with mid-circuit resets can reliably witness non-separability for sufficiently small reset errors. The tools we develop provide information beyond that obtained via simultaneous randomized benchmarking and so could find application in the analysis of cross-talk and coherent errors in quantum devices.
description: 38 pages, 5 figures