cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Kernel-Based Identification of Local Limit Cycle Dynamics with Linear Periodically Parameter-Varying Models
Creators: name: Ozan, Defne E.
name: Yin, Mingzhou
name: Iannelli, Andrea
name: Smith, Roy S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Limit cycle oscillations are phenomena arising in nonlinear dynamical systems and characterized by periodic, locally-stable, and self-sustained state trajectories. Systems controlled in a closed loop along a periodic trajectory can also be modelled as systems experiencing limit cycle behavior. The goal of this work is to identify from data, the local dynamics around the limit cycle using linear periodically parameter-varying models. Using a coordinate transformation onto transversal surfaces, the dynamics are decomposed into two parts: one along the limit cycle, and one on the transversal surfaces. Then, the model is identified from trajectory data using kernel-based methods with a periodic kernel design. The kernel-based model is extended to also account for variations in system parameters associated with different operating conditions. The performance of the proposed identification method is demonstrated on a benchmark nonlinear system and on a simplified airborne wind energy model. The method provides accurate model parameter estimation, compared to the analytical linearization, and good prediction capability.
description: Accepted for presentation at IEEE Conference on Decision and Control 2022
title: CT of hepatocellular carcinoma in non-alcoholic fatty liver disease: imaging characteristics and inter-rater agreement
Creators: name: Venkatesh, Sudhakar
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Liver
subject: Abdomen
subject: Oncology
subject: CT
subject: Diagnostic procedure
subject: Observer performance
subject: Cancer
subject: Neoplasia

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Hepatocellular carcinoma (HCC)is second most common cause for cancer related deaths worldwide. 1,2 HCC can be diagnosed non-invasivelyby theircharacteristic enhancement features on contrast enhanced dynamic computed tomography (CT) or magnetic...
Short Duration Traffic Flow Prediction Using Kalman Filtering
Creators: name: Momin, Khondhaker Al
name: Barua, Saurav
name: Jamil, Md. Shahreer
name: Hamim, Omar Faruqe
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Applications (stat.AP)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The research examined predicting short-duration traffic flow counts with the Kalman filtering technique (KFT), a computational filtering method. Short-term traffic prediction is an important tool for operation in traffic management and transportation system. The short-term traffic flow value results can be used for travel time estimation by route guidance and advanced traveler information systems. Though the KFT has been tested for homogeneous traffic, its efficiency in heterogeneous traffic has yet to be investigated. The research was conducted on Mirpur Road in Dhaka, near the Sobhanbagh Mosque. The stream contains a heterogeneous mix of traffic, which implies uncertainty in prediction. The propositioned method is executed in Python using the pykalman library. The library is mostly used in advanced database modeling in the KFT framework, which addresses uncertainty. The data was derived from a three-hour traffic count of the vehicle. According to the Geometric Design Standards Manual published by Roads and Highways Division (RHD), Bangladesh in 2005, the heterogeneous traffic flow value was translated into an equivalent passenger car unit (PCU). The PCU obtained from five-minute aggregation was then utilized as the suggested model's dataset. The propositioned model has a mean absolute percent error (MAPE) of 14.62, indicating that the KFT model can forecast reasonably well. The root mean square percent error (RMSPE) shows an 18.73% accuracy which is less than 25%; hence the model is acceptable. The developed model has an R2 value of 0.879, indicating that it can explain 87.9 percent of the variability in the dataset. If the data were collected over a more extended period of time, the R2 value could be closer to 1.0.
description: Shooting writing. Good research
title: Settlement Growth as a Fracture
Creators: name: Diachenko, Aleksandr
Publisher: name: JNA - Institute for Pre- and Early History (ufg)
Year: 2013

description: This article deals with a model describing the growth of settle-ments as a fractal. Long-term settlement growth is a result of non-linear relations between socio-economic development and popula-tion size. Our model explains the scaling in settlement populations, the demographic constants, and the conditions for the formation of small centers in the hierarchy of central places.
title: Extramedullary plasmacytoma - a radiologist's perspective.
Creators: name: Matthews, David
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Bones
subject: Haematologic
subject: Genital / Reproductive system male
subject: PET-CT
subject: MR-Diffusion/Perfusion
subject: Biopsy
subject: Blood
subject: Neoplasia
subject: Haematologic diseases

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Deliver an aetiological overview of extramedullary plasmacytoma (EMP). Demonstrate examples of EMP encountered in general radiology practice. Explore imaging modalities used in the diagnosis of...
Simulating Non Stationary Operators in Search Algorithms
Creators: name: Goëffon, Adrien
name: Lardeux, Frédéric
name: Saubion, Frédéric
Publisher: name: arXiv
Year: 2014
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In this paper, we propose a model for simulating search operators whose behaviour often changes continuously during the search. In these scenarios, the performance of the operators decreases when they are applied. This is motivated by the fact that operators for optimization problems are often roughly classified into exploitation operators and exploration operators. Our simulation model is used to compare the different performances of operator selection policies and clearly identify their ability to adapt to such specific operators behaviours. The experimental study provides interesting results on the respective behaviours of operator selection policies when faced to such non stationary search scenarios.
Einfluss von Social Media auf die Entwicklungsaufgaben der Jugendlichen: Kompetenzorientierte Arbeit mit Jugendlichen im Kontext der Digitalität
Creators: name: Hochstrasser, Florian
Publisher: name: Hochschule Luzern – Soziale Arbeit
Year: 2024

description: Diese Bachelorarbeit befasst sich mit der Frage, welcher Einfluss die Sozialen Medien auf die
Entwicklungsaufgaben der Jugendlichen und deren Prozesse haben sowie die Sozialpädagogik
kompetenzorientierte Arbeit mit den Jugendlichen im Kontext der Digitalität gestalten kann. Der
Einfluss der Sozialen Medien kann förderlich sowie hinderlich auf die physische und psychische
Gesundheit der Jugendlichen sein und deren wichtige Entwicklungsphase entsprechend beeinflussen.
Es werden die Entwicklungsaufgaben der Adoleszenz aufgeführt und der Einfluss der Sozialen Medien
darauf erläutert. Ausserdem wird erklärt, um was es in der Medienpädagogik geht und anhand des
Medienkompetenzmodells von Baacke werden für die Jugendlichen wichtige
Kompetenzentwicklungen herausgearbeitet, damit aus Sicht der Sozialpädagog*innen ein
verantwortungsvoller Umgang mit den Sozialen Medien gepflegt werden kann. Anschliessend wird
aufgeführt, welche Auswirkungen die Entwicklung der Digitalität auf die Jugendlichen sowie
Fachpersonen hat und wie diese Entwicklung genutzt werden kann. Daraus werden zielführende
Handlungsempfehlungen sowie -beispiele abgeleitet, was durch Bildungsangebote, Beratung,
Unterstützung, der Förderung positiver Online-Interaktionen, der Vorbildfunktion und Förderung von
physischen und offline Aktivitäten ersichtlich wird. Durch die Kompetenzentwicklungen wird
aufgezeigt, wie ein partizipativer Umgang mit den Jugendlichen hinsichtlich der Sozialen Medien in der
Digitalität gestaltet werden kann, wie die Fachpersonen einen professionellen Umgang damit pflegen
und die Beziehungsarbeit nicht gefährden. Abschliessend folgt eine Hypothese bezüglich künftiger
möglicher Entwicklungen.
description: + Code Diss LU: hslusa basp + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Sozialpädagogik, 2024 + NL-Code: NLLUHSA202409
Using Interactive Feedback to Improve the Accuracy and Explainability of Question Answering Systems Post-Deployment
Creators: name: Li, Zichao
name: Sharma, Prakhar
name: Lu, Xing Han
name: Cheung, Jackie C. K.
name: Reddy, Siva
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Most research on question answering focuses on the pre-deployment stage; i.e., building an accurate model for deployment. In this paper, we ask the question: Can we improve QA systems further \emph{post-}deployment based on user interactions? We focus on two kinds of improvements: 1) improving the QA system's performance itself, and 2) providing the model with the ability to explain the correctness or incorrectness of an answer. We collect a retrieval-based QA dataset, FeedbackQA, which contains interactive feedback from users. We collect this dataset by deploying a base QA system to crowdworkers who then engage with the system and provide feedback on the quality of its answers. The feedback contains both structured ratings and unstructured natural language explanations. We train a neural model with this feedback data that can generate explanations and re-score answer candidates. We show that feedback data not only improves the accuracy of the deployed QA system but also other stronger non-deployed systems. The generated explanations also help users make informed decisions about the correctness of answers. Project page: https://mcgill-nlp.github.io/feedbackqa/
description: ACL 2022 Findings
Wound healing activity of lectin isolated from seeds of Centrolobium microchaete Mart. ex Benth. on cutaneous wounds in mice
Creators: name: do Nascimento Neto, Luiz Gonzaga
name: de Vasconcelos, Mayron Alves
name: de Azevedo Pinheiro, Aryane
name: Ramos, Ana Patrícia Magalhães
name: da Silva, Renally Barbosa
name: Andrade, Alexandre Lopes
name: Arruda, Francisco Vassiliepe Sousa
name: Queiroz, José Ajax Nogueira
name: Teixeira, Edson Holanda
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
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
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer

description: This study aims to evaluate the wound healing potential of lectin isolated from the seeds of Centrolobium microchaete (Mart. ex Benth) (CML) on cutaneous wounds in mice. CML did not show cytotoxicity on murine dermal fibroblasts (L929 cell line). The wounds treated with CML (200 μg/mL) showed a decrease in area within 12 days post-operative (P.O.) when compared to control. On 3rd and 7th day P.O., the CML-treated group exhibited fibroblast proliferation and neovascularization. On 12th day P.O., complete restructuring of the epithelial layer and connective tissue was observed in the CML-treated group, whereas control groups exhibited incomplete reepithelialization. CML treatment enhanced the wound closure via the wound contraction process, resulting in the restructuring of the skin layers on 12th day P.O. In conclusion, CML induced a fast and efficient wound healing, suggesting that it can be used as a promising therapeutic tool to heal acute wounds.
Stable pair liquid phase in fermionic systems
Creators: name: Kornilovitch, Pavel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We predict the existence of a pair-liquid phase in lattice fermion systems with finite-range attractive interactions. This exotic state competes on one side with a normal Fermi liquid of unpaired fermions and on the other side with a phase-separated state where all fermions are coupled into macroscopic clusters. We show that such a phase is absent in bosonic systems and therefore is protected by the exclusion principle. In contrast with zero-range attractive systems where clustering of more than two fermions is directly prohibited, here quantum statistics acts dynamically and in a more subtle way. Since a many-fermion wave function must have nodes, the cluster formation threshold is larger than the pair formation threshold. By directly solving a four-body Schroedinger equation on one- and two-dimensional lattices, we map the boundaries of pair stability. The pair liquid phase should be observable in cold atom systems. We also discuss implications for the preformed-pair mechanism of high-temperature superconductivity.
description: Published version. 23 pages, 13 figures, 34 pages of supplemental material
title: MRI evaluation of response to radical chemoradiotherapy for cervical cancer: mimics and masquerades
Creators: name: Heaney, Roisin
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Oedema
subject: Cancer
subject: Radiation therapy / Oncology
subject: Chemotherapy
subject: MR-Diffusion/Perfusion
subject: MR
subject: Oncology
subject: Genital / Reproductive system male

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To outline the normal sequences used in a post chemoradiotherapy MRI of the cervix. To provide a pictorial description of expected post therapy changes and mimics of residual disease with histological correlation. To evaluate the sensitivity and...
A new type of X-ray pulsar
Creators: name: Oskinova, Lidia M.
name: Naze, Yael
name: Todt, Helge
name: Huenemoerder, David P.
name: Ignace, Richard
name: Hubrig, Swetlana
name: Hamann, Wolf-Rainer
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: X-ray emission from stars much more massive than the Sun was discovered only 35 years ago. Such stars drive fast stellar winds where shocks can develop, and it is commonly assumed that the X-rays emerge from the shock-heated plasma. Many massive stars additionally pulsate. However, hitherto it was neither theoretically predicted nor observed that these pulsations would affect their X-ray emission. Here we report the discovery of pulsating X-rays from the massive B-type star Xi1 Canis Majoris. This star is a variable of beta Cephei type and has a strong magnetic field. Our observations with the XMM-Newton telescope reveal X-ray pulsations with the same period as the fundamental stellar pulsation. This discovery challenges our understanding of stellar winds from massive stars, their X-ray emission, and their magnetism.
description: manuscript draft. The revised paper is published in Nature Communications
Supplementary document for Efficient mid-infrared linear-to-circular polarization conversion using a nanorod-based metasurface - 6088034.pdf
Creators: name: Zou, Huanling
name: Nash, Geoffrey
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: Details about interference theory, set up to measure stokes parameters, complete spectrum of ellipse parameters
Six-year Optical Monitoring of BL Lacertae Object 1ES 0806+52.4
Creators: name: Man, Zhongyi
name: Zhang, Xiaoyuan
name: Wu, Jianghua
name: Zhou, Xu
name: Yuan, Qirong
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results of the first systematic long-term multi-color optical monitoring of the BL Lacertae object 1ES 0806+52.4. The monitoring was performed in multiple passbands with a 60/90 cm Schmidt telescope from December 2005 to February 2011. The overall brightness of this object decreased from 2005 December to 2008 December, and regained after that. A sharp outburst probably occurred around the end of our monitoring program. Overlapped on the long-term trend are some short-term small-amplitude oscillations. No intra-night variability was found in the object, which is in accord with the historical observations before 2005. By investigating the color behavior, we found strong bluer-when-brighter chromatism for the long-term variability of 1ES 0806+52.4. The total amplitudes at the c, i and o bands are 1.18, 1.12, and 1.02 mags, respectively. The amplitudes tend to increase toward shorter wavelength, which may be the major cause of bluer-when-brighter. Such bluer-when-brighter is also found in other blazars like S5 0716+714, OJ 287, etc. The hard X-ray data collected from the Swift/BAT archive was correlated with our optical data. No positive result was found, the reason of which may be that the hard X-ray flux is a combination of the synchrotron and inverse Compton emission but with different timescales and cadences under the leptonic Synchrotron-Self-Compton (SSC) model.
description: Accepted for publication in the Astronomical Journal. 22 pages, 5 figures, 6 tables
Single-view 3D Mesh Reconstruction for Seen and Unseen Categories
Creators: name: Yang, Xianghui
name: Lin, Guosheng
name: Zhou, Luping
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Single-view 3D object reconstruction is a fundamental and challenging computer vision task that aims at recovering 3D shapes from single-view RGB images. Most existing deep learning based reconstruction methods are trained and evaluated on the same categories, and they cannot work well when handling objects from novel categories that are not seen during training. Focusing on this issue, this paper tackles Single-view 3D Mesh Reconstruction, to study the model generalization on unseen categories and encourage models to reconstruct objects literally. Specifically, we propose an end-to-end two-stage network, GenMesh, to break the category boundaries in reconstruction. Firstly, we factorize the complicated image-to-mesh mapping into two simpler mappings, i.e., image-to-point mapping and point-to-mesh mapping, while the latter is mainly a geometric problem and less dependent on object categories. Secondly, we devise a local feature sampling strategy in 2D and 3D feature spaces to capture the local geometry shared across objects to enhance model generalization. Thirdly, apart from the traditional point-to-point supervision, we introduce a multi-view silhouette loss to supervise the surface generation process, which provides additional regularization and further relieves the overfitting problem. The experimental results show that our method significantly outperforms the existing works on the ShapeNet and Pix3D under different scenarios and various metrics, especially for novel objects. The project link is https://github.com/Wi-sc/GenMesh.
description: Published in IEEE Transactions on Image Processing (TIP)
Long-range magnetic interaction and frustration in double perovskite Sr$_{2}$NiIrO$_{6}$
Creators: name: Ou, Xuedong
name: Li, Zhengwei
name: Fan, Fengren
name: Wang, Hongbo
name: Wu, Hua
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Sr$_{2}$NiIrO$_{6}$ would be a ferromagnetic (FM) insulator in terms of the common superexchange mechanism between the first nearest neighboring (1NN) magnetic ions Ni$^{2+}$ ($t_{2g}^{6}e_{g}^{2}$) and Ir$^{6+}$ ($t_{2g}^{3}$). However, the observed antiferromagnetic (AF) order questions this viewpoint. In this work, we present first-principles calculations and find that while the 1NN Ni$^{2+}$-Ir$^{6+}$ exchange is indeed FM, the 2NN and 3NN couplings in the fcc Ir (and Ni) sublattice are AF. Moreover, the 2NN AF Ir-Ir coupling turns out to be even stronger than the 1NN FM Ni-Ir coupling, thus giving rise to a magnetic frustration. Sr$_{2}$NiIrO$_{6}$ hence becomes a distorted low-temperature antiferromagnet. Naturally, a very similar magnetic property in Sr$_{2}$ZnIrO$_{6}$ can be explained by the frustrated AF coupling in the fcc Ir$^{6+}$ sublattice. This work highlights the long-range magnetic interaction of the delocalized $5d$ electrons, and also addresses why the spin-orbit coupling is ineffective here.
description: 5 pages, 5 figures, 1 table
Supplementary document for Efficient mid-infrared linear-to-circular polarization conversion using a nanorod-based metasurface - 6016736.pdf
Creators: name: Zou, Huanling
name: Nash, Geoffrey
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: experiment setup diagram of measuring Stokes parameters and ellipse parameters as a funtion of wavelength from 3-10um
Temporal and spatial evolution of the distribution related to the number of COVID-19 pandemic
Creators: name: Liu, Peng
name: Zheng, Yanyan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: Applications (stat.AP)
subject: FOS: Biological sciences
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: This work systematically conducts a data analysis based on the numbers of both cumulative and daily confirmed COVID-19 cases and deaths in a time span through April 2020 to June 2022 for over 200 countries around the world. Such research feature aims to reveal the temporal and spatial evolution of the country-level distribution observed in COVID-19 pandemic, and obtains some interesting results as follows. (1) The distributions of the numbers for cumulative confirmed cases and deaths obey power-law in early stages of COVID-19 and stretched exponential function in subsequent course. (2) The distributions of the numbers for daily confirmed cases and deaths obey power-law in early and late stages of COVID-19 and stretched exponential function in middle stages. The crossover region between power-law and stretched exponential behaviour seems to depend on the evolution of "infection" event and "death" event. Such observation implies a kind of important symmetry related to the dynamics process of COVID-19 spreading. (3) The distributions of the normalized numbers for each metric show a temporal scaling behaviour in 2-year period, and are well described by stretched exponential function. The observation of power-law and stretched exponential behaviour in such country-level distributions suggests underlying intrinsic dynamics of a virus spreading process in human interconnected society. And thus it is important for understanding and mathematically modeling the COVID-19 pandemic.
title: Hepatic steatosis and its impact on the work-up and follow-up of malignant disease
Creators: name: Carey, Kate
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Abdomen
subject: Oncology
subject: Liver
subject: CT
subject: Ultrasound
subject: MR
subject: Diagnostic procedure
subject: Staging
subject: Treatment effects
subject: Cancer
subject: Metastases
subject: Neoplasia

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To describe the imaging features of hepatic steatosis and highlight the imaging patterns and pitfalls which this condition creates in the work-up and follow-up of patients being investigated and treated for...
Data Stewardship Community building in the Netherlands: the Data Stewards Interest Group (DSIG) and other RDM networks
Creators: name: Schoots, Fieke
name: Jetten, Mijke
Publisher: name: Zenodo
Year: 2023
Subjects: data stewardship
community building
Life Sciences
Health

description: Presentation on data stewardship community building in the Netherlands for the ELIXIR-UK Data Management Club September 5, 2023
Operator formalism for topology-conserving crossing dynamics in planar knot diagrams
Creators: name: Rohwer, Christian M.
name: Müller-Nedebock, Kristian K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We address here the topological equivalence of knots through the so-called Reidemeister moves. These topology-conserving manipulations are recast into dynamical rules on the crossings of knot diagrams. This is presented in terms of a simple graphical representation related to the Gauss code of knots. Drawing on techniques for reaction-diffusion systems, we then develop didactically an operator formalism wherein these rules for crossing dynamics are encoded. {The aim is to develop new tools for studying dynamical behaviour and regimes in the presence of topology conservation}. This necessitates the introduction of composite paulionic operators. The formalism is applied to calculate some differential equations for {the time evolution} of densities and correlators of crossings, subject to topology-conserving stochastic dynamics. {We consider here the simplified situation of two-dimensional knot projections. However, we hope that this is a first valuable step towards} addressing a number of important questions regarding the role of topological constraints {and specifically of topology conservation} in dynamics through a variety of solution and approximation schemes. Further applicability arises in the context of the simulated annealing of knots. The methods presented here depart significantly from the invariant-based path integral descriptions often applied in polymer systems, {and, in our view, offer a fresh perspective on} the conservation of topological states and topological equivalence in knots.
description: 29 pages, 13 figures
title: Complications Related To Percutaneous Ablation Of Liver Tumors. Know Them To Avoid Them
Creators: name: Montes Figueroa, Enrique
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Neoplasia
subject: Cost-effectiveness
subject: Complications
subject: Ablation procedures
subject: Ultrasound
subject: CT
subject: Liver
subject: Interventional non-vascular
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To review the main complications in the percutaneous thermoablative treatment of liver tumors. Establish action keys to avoid them and decrease morbidity and...
Anti-osteoclastogenic cycloartane saponins from Mussaenda pubescens
Creators: name: Huong, Le Thanh
name: Thao, Tran Phuong
name: Trang, Do Thi
name: Lee, Jeong-Hyung
name: Tai, Bui Huu
name: Van Kiem, Phan
name: Nhiem, Nguyen Xuan
name: Dang, Nguyen Hai
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: The methanolic extract of Mussaenda pubescens Dryand leaves exhibited significant anti-osteoclastogenic activity. Chemical investigation of M. pubescens led to the isolation of one new cycloartane saponin, mussaendoside X (1) along with eight known compounds: heinsiagenin A 3-O-[α-L-rhamnopyranosyl-(1→2)-O-β-D-glucopyranosyl-(1→2)]-O-β-D-glucopyranoside (2), mussaendoside O (3), heinsiagenin A 3-O-[α-L-rhamnopyranosyl-(1→2)-O-β-D-glucopyranosyl-(1→2)]-O-β-D-glucopyranosyl-(1→4)-O-β-D-glucopyranoside (4), mussaendoside G (5), mussaendoside U (6), shanzhiside methyl ester (7), barlerin (8) and musaenoside (9). Their structures were elucidated by extensive spectroscopic methods including 1D- and 2D-NMR as well as MS analysis and comparison with the literature. Cycloartane saponins 1–6 positively suppressed osteoclast formation in an anti-osteoclastogenic screening assay. Consequently, treatment of RANKL-stimulated RAW 264.7 cells with compounds 1–4 significantly decreased the number of osteoclasts in a concentration-dependent manner. Six compounds from M. pubescens, with the new cycloartane, mussaendoside X, were shown for the first time as potential effective inhibitors of osteoclastogenesis.
Glass Segmentation with RGB-Thermal Image Pairs
Creators: name: Huo, Dong
name: Wang, Jian
name: Qian, Yiming
name: Yang, Yee-Hong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: This paper proposes a new glass segmentation method utilizing paired RGB and thermal images. Due to the large difference between the transmission property of visible light and that of the thermal energy through the glass where most glass is transparent to the visible light but opaque to thermal energy, glass regions of a scene are made more distinguishable with a pair of RGB and thermal images than solely with an RGB image. To exploit such a unique property, we propose a neural network architecture that effectively combines an RGB-thermal image pair with a new multi-modal fusion module based on attention, and integrate CNN and transformer to extract local features and non-local dependencies, respectively. As well, we have collected a new dataset containing 5551 RGB-thermal image pairs with ground-truth segmentation annotations. The qualitative and quantitative evaluations demonstrate the effectiveness of the proposed approach on fusing RGB and thermal data for glass segmentation. Our code and data are available at https://github.com/Dong-Huo/RGB-T-Glass-Segmentation.
description: IEEE Transactions on Image Processing (TIP), 2023
title: Physics of neutrino flavor transformation through matter–neutrino resonances
Creators: name: Wu, Meng-Ru
name: Duan, Huaiyu
name: Qian, Yong-Zhong
Publisher: name: Elsevier
Year: 2022

description: In astrophysical environments such as core-collapse supernovae and neutron star–neutron star or neutron star–black hole mergers where dense neutrino media are present, matter–neutrino resonances (MNRs) can occur when the neutrino propagation potentials due to neutrino–electron and neutrino–neutrino forward scattering nearly cancel each other. We show that neutrino flavor transformation through MNRs can be explained by multiple adiabatic solutions similar to the Mikheyev–Smirnov–Wolfenstein mechanism. We find that for the normal neutrino mass hierarchy, neutrino flavor evolution through MNRs can be sensitive to the shape of neutrino spectra and the adiabaticity of the system, but such sensitivity is absent for the inverted hierarchy.
Marginal Anderson localization and many body delocalization
Creators: name: Nandkishore, Rahul
name: Potter, Andrew C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider d dimensional systems which are localized in the absence of interactions, but whose single particle (SP) localization length diverges near a discrete set of (single-particle) energies, with critical exponent ν. This class includes disordered systems with intrinsic- or symmetry-protected- topological bands, such as disordered integer quantum Hall insulators. In the absence of interactions, such marginally localized systems exhibit anomalous properties intermediate between localized and extended including: vanishing DC conductivity but sub-diffusive dynamics, and fractal entanglement (an entanglement entropy with a scaling intermediate between area and volume law). We investigate the stability of marginal localization in the presence of interactions, and argue that arbitrarily weak short range interactions trigger delocalization for partially filled bands at non-zero energy density if ν\ge 1/d. We use the Harris/Chayes bound ν\ge 2/d, to conclude that marginal localization is generically unstable in the presence of interactions. Our results suggest the impossibility of stabilizing quantized Hall conductance at non-zero energy density.
FAIR data: componenti chiave e procedure
Creators: name: Vernone, Annamaria
Publisher: name: Zenodo
Year: 2022
Subjects: FAIR
metadata
databases
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description: Presentazione nell'ambito del Workshop "Open Science and FAIR Data for Neuroscience, Dipartimento di Neuroscienze, Università di Torino, Italia, 6-7-9-15 giugno 2022, Focus on Neuroscience and Neuroimaging, Computational Phenotyping ("phenomics"), Rare Diseases". I dati stanno acquistando ogni giorno sempre più importanza. Diventa centrale in questo contesto una corretta gestione e condivisione del dato e delle procedure adottate, ai fini del riuso, dell’interoperabilità e riproducibilità dell’esperimento (FAIR). Vedremo i componenti chiave di questo processo: dati, metadati, dataset, standard e procedure insieme ad alcuni esempi di utilizzo su Repositories online. Nella versione V1.1 sono stati introdotti alcuni concetti relativi a alla definizione di "Identificatore" e "DOI".
title: Foretells for grading difference in coronary artery stenosis: Coronary CT angiography versus invasive coronary angiography
Creators: name: Saad, Zizi
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Cardiac
subject: Arteries / Aorta
subject: Cardiovascular system
subject: CT-Angiography
subject: Catheter arteriography
subject: Computer Applications-Detection, diagnosis
subject: Angioplasty
subject: Arteriosclerosis
subject: Calcifications / Calculi
subject: Obstruction / Occlusion

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The objective of the current study was to define some of the imaging findings that can predict the cause of agreement and disagreement betweenCT coronary angiography (CTA)andconventional invasive coronary angiography (ICA)for estimation of grade of...
Minkowski-Fock states in accelerated frames
Creators: name: Falcone, Riccardo
name: Conti, Claudio
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An explicit Wigner formulation of Minkowski particle states for non-inertial observers is unknown. Here, we derive a general prescription to compute the characteristic function for Minkowski-Fock states in accelerated frames. For the special case of single-particle and two-particle states, this method enables to derive mean values of particle numbers and correlation function in the momentum space, and the way they are affected by the acceleration of the observer. We show an indistinguishability between Minkowski single-particle and two-particle states in terms of Rindler particle distribution that can be regarded as a way for the observer to detect any acceleration of the frame. We find that for two-particle states the observer is also able to detect acceleration by measuring the correlation between Rindler particles with different momenta.
In vitro and in silico cytotoxicity of hinokinin-loaded PLGA microparticle systems against tumoral SiHa cells
Creators: name: de Lima, Regiane G.
name: Lisoni, Flavia C. R.
name: Picão, Thais B.
name: Santos, Fransérgio F. dos
name: Orenha, Renato P.
name: Borges, Alexandre
name: Molina, Eduardo F.
name: Parreira, Renato L. T.
name: Silva, Márcio L. A. e
name: Santos, Mario F. C.
name: da S. de Laurentiz, Rosangela
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer

description: This work aimed to synthesize poly (D, L-lactic-co-glycolic acid) (PLGA) microparticles containing hinokinin (HNK) and to evaluate their cytotoxic activity against tumoral SiHa cells and non-tumoral HaCaT cells. Hinokinin was incorporated into PLGA (PLGA-HNK) with an encapsulation efficiency of 84.18 ± 2.32%. PLGA and PLGA-HNK were characterized by SEM microscopy and showed spherical morphology with an average size of ∼3.33. Encapsulation efficiency was determined by a calibration curve using UV-vis spectroscopy. PLGA-HNK more active inhibiting proliferation of SiHa cells (IC50 = 14.68 µM) than free HNK (IC50 = 225.5 µM). In relation to HaCaT cells, PLGA-HNK showed no significant difference compared to the negative control. These results led to an increase in HNK bioavailability and thereby, biological activity. In silico prediction analysis suggests that HNK is cytotoxic against SiHa cells with E6 and MDM2 inhibition as possible main mechanism of action.
On-Sky Tests of an A/R Coated Silicon Grism on board NICS@TNG
Creators: name: Vitali, Fabrizio
name: Foglietti, Vittorio
name: Lorenzetti, Dario
name: Cianci, Elena
name: Ghinassi, Francesca
name: Harutyunyan, Avet
name: Antoniucci, Simone
name: Riverol, Carlos
name: Riverol, Luis
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present the results of our project for the design and construction and on-sky test of silicon grisms. The fabrication of such devices is a complex and critical process involving litho-masking, anisotropic etching and direct bonding techniques. After the successful fabrication of the silicon grating, we have optimized the bonding of the grating onto the hypotenuse of a silicon prism to get the final prototype. After some critical phases during the experimentation a silicon grism with 363 grooves/mm and a blaze angle of 14 degrees has been eventually fabricated. The application of an A/R coating on both the surfaces has been the last step: this procedure is critical because of the groove geometry of the diffraction grating, whose performace might be compromised by the coating. Then, the grism was inserted in the filter wheel of the Near Infrared camera NICS, at the focal plane of the National Galileo Telescope (TNG), the 3.5 m Italian facility in the Canary Islands (E). The result of the on-sky tests are given in detail.
description: 9 pages, 13 figures, 1 table. Presented at SPIE Astronomical Telescope + Instrumentation 2014 (Ground-based and Airbone Instrumentation for Astronomy, 9151-203). To be published in Proceeding of SPIE Volume 9151
Phenolic profile, antidepressant-like and neuroprotective effects of Maclura tinctoria leaves extract
Creators: name: Camargo, Anderson
name: Dalmagro, Ana Paula
name: Rebelo, Andrey Martinez
name: Reinke, Cássia Katrin
name: Zeni, Ana Lúcia Bertarello
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Neuroscience
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Plant Biology
subject: FOS: Biological sciences

description: Considering the drawbacks elicited by the conventional antidepressants, the interest in natural products for the management of major depressive disorder has increased in the last years. Therefore, this study investigated the phenolic profile of Maclura tinctoria leaf aqueous extract (MtAE) and its possible antidepressant-like effect in mice. The LC-MS/MS analysis demonstrated MtAE has epicatechin as the major phenolic, followed by catechin, gallic acid, quercetin, syringaldehyde, ferulic acid, and syringic acid. Moreover, the acute treatment of MtAE elicited an antidepressant-like response in mice. Importantly, this antidepressant-like effect produced by MtAE was reinforced in the chronic corticosterone (20 mg/kg p.o.) administration model. MtAE treatment was also effective to protect hippocampal and cerebrocortical slices against glutamatergic excitotoxicity. Our results indicated that MtAE displayed antidepressant-like and neuroprotective effects and these responses could be associated with the presence of the phenolic compounds identified.
Characterizing Error Mitigation by Symmetry Verification in QAOA
Creators: name: Kakkar, Ashish
name: Larson, Jeffrey
name: Galda, Alexey
name: Shaydulin, Ruslan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Hardware errors are a major obstacle to demonstrating quantum advantage with the quantum approximate optimization algorithm (QAOA). Recently, symmetry verification has been proposed and empirically demonstrated to boost the quantum state fidelity, the expected solution quality, and the success probability of QAOA on a superconducting quantum processor. Symmetry verification uses parity checks that leverage the symmetries of the objective function to be optimized. We develop a theoretical framework for analyzing this approach under local noise and derive explicit formulas for fidelity improvements on problems with global $\mathbb{Z}_2$ symmetry. We numerically investigate the symmetry verification on the MaxCut problem and identify the error regimes in which this approach improves the QAOA objective. We observe that these regimes correspond to the error rates present in near-term hardware. We further demonstrate the efficacy of symmetry verification on an IonQ trapped ion quantum processor where an improvement in the QAOA objective of up to 19.2\% is observed.
description: 11 pages
Modeling electron dynamics coupled to continuum states in finite volumes
Creators: name: De Giovannini, Umberto
name: Larsen, Ask Hjorth
name: Rubio, Angel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Optics (physics.optics)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Absorbing boundaries are frequently employed in real-time propagation of the Schrödinger equation to remove spurious reflections and efficiently emulate outgoing boundary conditions. These conditions are a fundamental ingredient for an implicit description of observables involving infinitely extended continuum states. In the literature, several boundary absorbers have been proposed. They mostly fall into three main families: mask function absorbers, complex absorbing potentials, and exterior complex-scaled potentials. To date none of the proposed absorbers is perfect, and all present a certain degree of reflections. Characterization of such reflections is thus a critical task with strong implications for time-dependent simulations of atoms and molecules. We introduce a method to evaluate the reflection properties of a given absorber and present a comparison of selected samples for each family of absorbers. Further, we discuss the connections between members of each family and show how the same reflection curves can be obtained with very different absorption schemes.
Prävention hegemonialer Männlichkeitsnormen in Sozialen Medien bei Jugendlichen: Sozialpädagogische Perspektiven
Creators: name: Kiefer, Adrian
Publisher: name: Hochschule Luzern – Soziale Arbeit
Year: 2024

description: Abstract
Die vorliegende Bachelorarbeit widmet sich der Untersuchung präventiver Massnahmen zur Eindämmung hegemonialer Männlichkeitsnormen in sozialen Medien aus der Perspektive der Sozialpädagogik. In Anbetracht der Verbreitung traditioneller Männlichkeitsbilder, welche Stärke, Unabhängigkeit und emotionale Zurückhaltung betonen, wird die Herausforderung durch widersprüchliche Erwartungen an die männliche Geschlechtsidentität beleuchtet. Die vorliegende Arbeit widmet sich der Analyse der Nutzung sozialer Medien durch Jugendliche sowie der Untersuchung des Einflusses dieser Nutzung auf die Identitätsbildung und die Bildung geschlechterspezifischer Stereotype. Im Folgenden werden präventive Ansätze zur Förderung von Medienkompetenz sowie zur Vermittlung eines kritischen Umgangs mit hegemonialen Männlichkeitsnormen vorgestellt. Dazu zählen geschlechtsspezifische Bildungsprogramme, Peer-Group-Interventionen sowie die Schaffung sicherer Räume in Jugendgruppen. Die Ergebnisse unterstreichen die Relevanz einer geschlechterbewussten Jugendarbeit, um alternative Vorstellungen von Männlichkeit zu entwickeln, die Bedeutung einer fairen und gendergerechten Gesellschaft zu vermitteln und ein resilientes Selbstbewusstsein zu fördern. Praxisnahe Lösungen und Handlungsempfehlungen für die Sozialpädagogik zielen darauf ab, das Wohlbefinden und die persönliche Entwicklung junger Menschen nachhaltig zu fördern.
description: + Code Diss LU: hslusa basp + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Sozialpädagogik, 2024 + NL-Code: NLLUHSA202409
The chemical composition of the essential oil of Ptilostemon gnaphaloides subsp. pseudofruticosus (Asteraceae) growing in Kythira Island, Greece
Creators: name: Badalamenti, Natale
name: Modica, Aurora
name: Ilardi, Vincenzo
name: Bruno, Maurizio
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
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
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: Ptilostemon is a small genus of the subtribe Carduinae (Asteraceae) that includes 15 species as annual or perennial herbs or small shrubs, spread in the Mediterranean arch, from Crimea and Turkey to the Iberian Peninsula and Morocco. Several species of this genus have been studied for the content of non-volatile metabolites whereas few investigations have been carried out on their essential oils. In the present study the chemical composition of the essential oil from aerial parts of Ptilostemon gnaphaloides subsp. pseudofruticosus, belonging to Section Ptilostemon, endemic of South Greece and Turkey, and collected in the island of Kythira, was analyzed by GC-MS. The result showed the presence of large quantity of sesquiterpene hydrocarbons with germacrene D (20.0%) as the most abundant component, followed by (E)-caryophyllene (6.8%). Among the other metabolites hexacosane (29.1%) and manoyl oxide (12.1%) were the most abundant.