cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Carbofunctional silatrane possessing imidazole moiety: synthesis, characterization and antibacterial studies
Creators: name: Gurjaspreet Singh
name: Sheenam Girdhar
name: Sharma, Raj Pal
name: Przemysław Starynowicz
name: Singh, Baljinder
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Science Policy
subject: Developmental Biology
subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Cell Biology
subject: Microbiology
subject: FOS: Biological sciences

description: 1-(3-(1-imidazol-1-yl)propyl)-2,8,9-trioxa-5-aza-1-silabicyclo[3.3.3.0]undecane 3, with imidazole functionality containing transannular N→Si bond (2.13 Å), was synthesized by transetherification reaction of triethanolamine 1 with N-(3-propyltriethoxysilane)imidazole 2. The compound was characterized by elemental analysis, spectroscopic techniques (IR, 1H NMR, 13C NMR, UV-Vis), mass spectrometry and X-ray diffraction. The thermal stability of silatrane 3 was studied by TGA/DTG/DSC techniques, which is in agreement with the mass spectrometry and X-ray diffraction studies. The structural investigations of 3 were complemented by quantum chemical studies of the structure. Compound 3 showed slight activity against Escherichia coli and Staphylococcus aureus while no activity was found against Bacillus subtillus and Vibrio cholera.Graphical abstract:
Twisted Bilayer Graphene IV. Exact Insulator Ground States and Phase Diagram
Creators: name: Lian, Biao
name: Song, Zhi-Da
name: Regnault, Nicolas
name: Efetov, Dmitri K.
name: Yazdani, Ali
name: Bernevig, B. Andrei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We derive the exact insulator ground states of the projected Hamiltonian of magic-angle twisted bilayer graphene (TBG) flat bands with Coulomb interactions in various limits, and study the perturbations away from these limits. We define the (first) chiral limit where the AA stacking hopping is zero, and a flat limit with exactly flat bands. In the chiral-flat limit, the TBG Hamiltonian has a U(4)$\times$U(4) symmetry, and we find that the exact ground states at integer filling $-4\le ν\le 4$ relative to charge neutrality are Chern insulators of Chern numbers $ν_C=4-|ν|,2-|ν|,\cdots,|ν|-4$, all of which are degenerate. This confirms recent experiments where Chern insulators are found to be competitive low-energy states of TBG. When the chiral-flat limit is reduced to the nonchiral-flat limit which has a U(4) symmetry, we find $ν=0,\pm2$ has exact ground states of Chern number $0$, while $ν=\pm1,\pm3$ has perturbative ground states of Chern number $ν_C=\pm1$, which are U(4) ferromagnetic. In the chiral-nonflat limit with a different U(4) symmetry, different Chern number states are degenerate up to second order perturbations. In the realistic nonchiral-nonflat case, we find that the perturbative insulator states with Chern number $ν_C=0$ ($00$, a first-order phase transition for $ν=\pm1,\pm2$ from Chern number $ν_C=\text{sgn}(νB)(2-|ν|)$ to $ν_C=\text{sgn}(νB)(4-|ν|)$ is expected, which agrees with recent experimental observations. Lastly, the TBG Hamiltonian reduces into an extended Hubbard model in the stabilizer code limit.
description: 17+35 pages, 3+2 figures. Published version
Metabolism of stilbene phytoalexins in grapevines: Oxidation of resveratrol in single-cell cultures
Creators: name: Hoos, G.
name: Blaich, R.
Publisher: name: VITIS - Journal of Grapevine Research
Year: 2015

description: Single-cell cultures of the fungus resistant grapevine varieties Pollux and Sirius and the susceptible ones Riesling and Optima have been established to study the metabolism of the stilbene phytoalexins resveratrol and viniferin. Cells of different varieties showed morphological differences (form and mechanical resistance) and their susceptibility to treatment with debris of killed mycelium of Bot1ytis cinerea reflected the varietal resistance under natural conditions. Most cells of Riesling and Optima were killed by toxic components of the mycelium within 60 h, whereas cultures of Pollux and Sirius showed only slight damage. Two types of peroxidases have been characterized which can take resveratrol as a substrate converting it to a brown pigment. Viniferin was observed as an intermediate product. Peroxidase activity in suscpetible varieties was reduced as compared to the resistant ones. The oxidation products of resveratrol inhibited the activity of peroxidase. The function of stilbene phytoalexins as precursors of lignin-like substances is discussed.
description: VITIS - Journal of Grapevine Research, Vol. 27 No. 1 (1988): VITIS
Twisted Bilayer Graphene V: Exact Analytic Many-Body Excitations in Twisted Bilayer Graphene Coulomb Hamiltonians: Charge Gap, Goldstone Modes and Absence of Cooper Pairing
Creators: name: Bernevig, B. Andrei
name: Lian, Biao
name: Cowsik, Aditya
name: Xie, Fang
name: Regnault, Nicolas
name: Song, Zhi-Da
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We find exact analytic expressions for the energies and wavefunctions of the charged and neutral excitations above the exact ground states (at rational filling per unit cell) of projected Coulomb Hamiltonians in twisted bilayer graphene. Our exact expressions are valid for any form of the Coulomb interaction and any form of $AA$ and $AB/BA$ tunneling. The single charge excitation energy is a convolution of the Coulomb potential with a quantum geometric tensor of the TBG bands. The neutral excitations are (high-symmetry group) magnons, and their dispersion is analytically calculated in terms of the form factors of the active bands in TBG. The two-charge excitation energy and wavefunctions are also obtained, and a sufficient condition on the graphene eigenstates for obtaining a Cooper-pair from Coulomb interactions is obtained. For the actual TBG bands at the first magic angle, we can analytically show that the Cooper pair binding energy is zero in all such projected Coulomb models, implying that either phonons and/or non-zero kinetic energy are needed for superconductivity. Since the [Phys. Rev. Lett. 122, 246401] showed that the kinetic energy bounds on the superexchange energy are less $10^{-3}$ in Coulomb units, the phonon mechanism becomes then very likely. If nonetheless the superconductivity is due to kinetic terms which render the bands non-flat, one prediction of our theory is that the highest $T_c$ would not occur at the highest DOS.
description: References added; Excitations at odd fillings in the flat nonchiral limit added
ERIGrid 2.0
Creators: name: Mihai, Calin
Publisher: name: The ERIGrid 2.0 Consortium
Year: 2022
Subjects: Integrated Research Infrastructure
Approaches for Smart Enertgy Technologies
Free Laboratory Access
Presentation
European Union (EU)
H2020
Project
ERIGrid 2.0
GA 870620

description: Brief overview of the ERIGrid 2.0 activities and access opportunities by deputy coordinator Mihai Calin
Optimal orientations of vertex-multiplications of cartesian products of graphs
Creators: name: Wong, W. H. W.
name: Tay, E. G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: G.2.2; F.2.2
subject: 05C12, 05C20, 05D05

description: Koh and Tay proved a fundamental classification of $G$ vertex-multiplications into three classes $\mathscr{C}_0, \mathscr{C}_1$ and $\mathscr{C}_2$. In this paper, we prove that vertex-multiplications of cartesian products of graphs $G\times H$ lie in $\mathscr{C}_0$ ($\mathscr{C}_0\cup \mathscr{C}_1$ resp.) if $G^{(2)}\in \mathscr{C}_0$ ($\mathscr{C}_1$ resp.), $d(G)\ge 2$ and $d(G\times H)\ge 4$. We also focus on cartesian products involving trees, paths and cycles and show that most of them lie in $\mathscr{C}_0$.
description: 28 pages
¿SE PUEDE ACUMULAR UNA PRETENSIÓN  DE  RESOLUCIÓN DE  CONTRATO VÍA JUDICIAL CON EL CUMPLIMIENTO DE ARRAS  PENALES? :  Luces y Sombras de una interpretación antojadiza del art. 1478° del Código  Civil
Creators: name: Félix Enrique Ramírez Sánchez
name: Cristina Gavancho León
Publisher: name: Zenodo
Year: 2010

description: CORTE SUPERIOR DE SAN MARTÍN SEGUNDA SALA MIXTA DESCENTRALIZADA DE TARAPOTO Expediente No 2007-382-Tarapoto.                       RESOLUCIÓN NÚMERO VEINTE. Tarapoto, veinte de Enero De dos mil nueve.
Towards trustworthy recommender systems
Creators: name: Ge, Yingqiang
Publisher: name: No Publisher Supplied
Year: 2024

description: Recommender systems (RS), serving at the forefront of Human-centered AI, are widely deployed in almost every corner of the web and facilitate the human decision-making process. However, despite their enormous capabilities and potential, RS may also lead to undesired effects on users, items, producers, platforms, or even the society at large, such as compromised user trust due to non-transparency, unfair treatment of different consumers, or producers, privacy concerns due to extensive use of user’s private data for personalization, just to name a few. All of these underscore a pressing need for the development of Trustworthy Recommender Systems (TRS) to alleviate or circumvent such detrimental impacts and risks.In this thesis, we study three core dimensions of trustworthiness in RS, namely, fairness, robustness and explainability. It is important to note that these are not the only perspectives of a trustworthy recommender system. However, they are several widely discussed topics in the literature that are deeply connected with trustworthiness of an intelligent system such as recommender system. Moreover, unlike many existing works in TRS, which only consider one perspective, we mainly concentrate on studying the interplay between them. To this end, we aim to address this multi-faceted problem from three distinct angles, which are shown as follows,• The trade-off between fairness and recommendation performance.• The robustness of fairness under the dynamic nature of RS.• The transparency and explainability of model fairness.For the first angle, we seek to identify the Pareto efficient/optimal solutions to guarantee optimal compromises between utility and fairness, where a Pareto efficient/optimal solution means no single objective can be further improved without hurting the others. In addressing the second angle, we delve into the concept of “Robustness of Fairness”, which explores the capability of RS to sustain fairness in the face of various uncertainties, disturbances, and changes encountered throughout the recommendation processes. Lastly, for the third perspective, we explore the idea of “Explainable Fairness”, intending to furnish coherent explanations that can aid users, system architects, or policymakers in comprehending the reasons behind the perceived fairness or unfairness of the recommender system. Our proposed methods in this thesis have outperformed several state-of-the-art methods on numerous real-world datasets. The experimental results demonstrate the effectiveness of the proposed methods in achieving satisfying recommendation accuracy and recommendation fairness.
A forward-backward SDE from the 2D nonlinear stochastic heat equation
Creators: name: Dunlap, Alexander
name: Gu, Yu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 60H15 (Primary), 35R60, 60H10 (Secondary)

description: We consider a nonlinear stochastic heat equation in spatial dimension $d=2$, forced by a white-in-time multiplicative Gaussian noise with spatial correlation length $\varepsilon>0$ but divided by a factor of $\sqrt{\log\varepsilon^{-1}}$. We impose a condition on the Lipschitz constant of the nonlinearity so that the problem is in the "weak noise" regime. We show that, as $\varepsilon\downarrow0$, the one-point distribution of the solution converges, with the limit characterized in terms of the solution to a forward-backward stochastic differential equation (FBSDE). We also characterize the limiting multipoint statistics of the solution, when the points are chosen on appropriate scales, in similar terms. Our approach is new even for the linear case, in which the FBSDE can be solved explicitly and we recover results of Caravenna, Sun, and Zygouras (Ann. Appl. Probab. 27(5):3050--3112, 2017).
description: 49 pages; accepted version, to appear in Annals of Probability
Micron scale thermometry using lanthanide doped tellurite glass
Creators: name: Stavrevski, Daniel
name: Schartner, Erik P.
name: Abraham, Amanda
name: Maksymov, Ivan
name: Ebendorff-Heidepriem, Heike
name: McLaughlin, Robert A.
name: Greentree, Andrew D.
Publisher: name: Swinburne
Year: 2024

description: Nanoscale thermometry of biological systems offers new insights into cell metabolism at a sub-cellular scale. Currently, there is no way in which we can achieve high resolution temperature sensing on these systems without the use of foreign materials such as biological markers. Using rare-earth doped tellurite glass as a platform for thermometry, we report micron scale scale temperature sensing via confocal scanning microscopy. We demonstrate this technique by monitoring the cooling from a water droplet and report a net temperature change of 7.04K with a sensitivity of 0.12K. These results pave the way for “marker free” micron scale temperature sensing in biological systems.
Laporan Praktik Kerja Lapangan Botani Tumbuhan Tinggi Kelompok 4
Creators: name: Fajriyah, Nurul
Publisher: name: Zenodo
Year: 2020

description: Assalamu'alaikum Warahmatullahi Wabarakatuh, Ibu dan kakak-kakak Ini laporan PKL BTT dari kelompok 4 -Hellyatunisa (180101110229) -Ika Lestari (180101110217) -Maulidya Muslimah (180101110252) -Nani Rosnita (180101110576) -Nurul Fajriyah (180101111088) -Rizqa Amalia Salsabella (180101110213) Mohon maaf atas segala kekurangan dan atas perhatiannya terima kasih banyak. :) Wassalamu'alaikum Warahmatullahi Wabarakatuh.
Will a buried composite pipeline system fail at its joints under the effects of overburden soil, pipe operating pressurization, and traffic loads?
Creators: name: Tse, Kwong Ming
name: Toh, William
name: Tan, Long Bin
name: Lee, Heow Pueh
name: Tan, Vincent Beng Chye
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 401602
subject: Composite and hybrid materials
classificationCode: 401706
subject: Numerical modelling and mechanical characterisation
classificationCode: 401707
subject: Solid mechanics

description: In real world applications, buried pipelines span across great lengths. It is inevitable that certain sections of a buried pipeline experience external loads in addition to top soil overburden, such as weights of aboveground buildings and traffic loads located directly above these sections. The present study investigated the effects of overburden soil, pipe internal pressurization, and traffic loads on fiber-reinforced plastic pipelines at various pipe sections with particular emphasis on pipe joints using finite element method. This study includes realistic modeling of traffic loading on service road running across a buried pipeline system, consisting of straight, bent, and joint sections. Our results also revealed that surcharge loading might not be a predominant factor in pipe failure or leakage issues as compared to the cyclic pipe internal pressurization. Moreover, it was also confirmed in our study that the pipe joint remained as the most critical region for pipe failure or leakage issues.
Advanced Biophysical Model to Capture Channel Variability for EQS Capacitive HBC
Creators: name: Datta, Arunashish
name: Nath, Mayukh
name: Yang, David
name: Sen, Shreyas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Human Body Communication (HBC) has come up as a promising alternative to traditional radio frequency (RF) Wireless Body Area Network (WBAN) technologies. This is essentially due to HBC providing a broadband communication channel with enhanced signal security in the physical layer due to lower radiation from the human body as compared to its RF counterparts. An in-depth understanding of the mechanism for the channel loss variability and associated biophysical model needs to be developed before EQS-HBC can be used more frequently in WBAN consumer and medical applications. Biophysical models characterizing the human body as a communication channel didn't exist in literature for a long time. Recent developments have shown models that capture the channel response for fixed transmitter and receiver positions on the human body. These biophysical models do not capture the variability in the HBC channel for varying positions of the devices with respect to the human body. In this study, we provide a detailed analysis of the change in path loss in a capacitive-HBC channel in the electroquasistatic (EQS) domain. Causes of channel loss variability namely: inter-device coupling and effects of fringe fields due to body's shadowing effects are investigated. FEM based simulation results are used to analyze the channel response of human body for different positions and sizes of the device which are further verified using measurement results to validate the developed biophysical model. Using the bio-physical model, we develop a closed form equation for the path loss in a capacitive HBC channel which is then analyzed as a function of the geometric properties of the device and the position with respect to the human body which will help pave the path towards future EQSHBC WBAN design.
description: 12 pages, 14 figures
Future directions in parameterization: enabling Bayesian inference with surrogate modeling
Creators: name: Madin, Owen
Publisher: name: Zenodo
Year: 2020
Subjects: Open Force Field Initiative
force fields
parameterization
Bayesian inference
surrogate modeling
non-bonded interactions

description: This presentation is a part of the Open Force Field Virtual Meeting 2020. Abstract: I’ll discuss our interest in using Bayesian inference to make decisions about non-bonded interactions, and our planned usage of surrogate models to achieve this. I’ll use the 2CLJQ system as a case study.
Positive and Negative sequence analysis of a Voltage Source Converter
Creators: name: Domínguez-Hernàndez, Martí
name: Cheah-Mane, Marc
name: Griñó Cubero, Roberto
Publisher: name: Zenodo
Year: 2024

description: Power electronic components are becoming essential for the present and future grids, giving useful services apart from integrating electrical vehicles (EV), renewable energies or batteries. Voltage Source Converters (VSCs) are a good option to ensure the stability of the grid when there is a fault, which is known as Fault-Ride Through (FRT). In most cases the fault is unbalanced, which affects directly the control of the power electronic device, having to add a positive and negative sequence control. Despite the wide use of the symmetrical components in the literature, their explanation is not clear in the literature. This thesis aims to explain what are these components and how they can be calculated. Furthermore, the analysis of the symmetrical sequences is used to try to obtain a small-signal model of a VSC with positive and negative control directly from the sequences. The objective is to use the linear model to analyse the stability and design the controls taking into account the effect of the asymmetry. This thesis also explains the limitations of the presented methodology due to the coupling between positive and negative sequence components at 0 Hz and 100 Hz. Finally, the obtained model is analysed to identify the differences in the dynamics with respect to a model with positive sequence control
Multiplicative Updates for NMF with $β$-Divergences under Disjoint Equality Constraints
Creators: name: Leplat, Valentin
name: Gillis, Nicolas
name: Idier, Jérôme
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: Signal Processing (eess.SP)
subject: Optimization and Control (math.OC)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Nonnegative matrix factorization (NMF) is the problem of approximating an input nonnegative matrix, $V$, as the product of two smaller nonnegative matrices, $W$ and $H$. In this paper, we introduce a general framework to design multiplicative updates (MU) for NMF based on $β$-divergences ($β$-NMF) with disjoint equality constraints, and with penalty terms in the objective function. By disjoint, we mean that each variable appears in at most one equality constraint. Our MU satisfy the set of constraints after each update of the variables during the optimization process, while guaranteeing that the objective function decreases monotonically. We showcase this framework on three NMF models, and show that it competes favorably the state of the art: (1)~$β$-NMF with sum-to-one constraints on the columns of $H$, (2) minimum-volume $β$-NMF with sum-to-one constraints on the columns of $W$, and (3) sparse $β$-NMF with $\ell_2$-norm constraints on the columns of $W$.
description: We have corrected an error in Table 1 and in Section 2.3: the updates are not correct for $\beta \in (1,2)$; see the paper for more details. We have highlighted the changes in red color
Thick branes with inner structure in mimetic $f(R)$ gravity
Creators: name: Chen, Jing
name: Guo, Wen-Di
name: Liu, Yu-Xiao
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we study the structure and gravitational resonances of thick branes generated by a mimetic scalar field in $f(R)$ gravity. We obtain several typical thick brane solutions for $f(R)=R+αR^2$. To study their stability, we analyze the tensor perturbation of the metric. It is shown that any thick brane model with $df/dR>0$ is stable and the graviton zero mode can be localized on the brane for each solution, which indicates that the four-dimensional Newtonian gravity can be restored. The effect of the parameter $α$ on the gravitational resonances is studied. As a brane splits into multi sub-branes, the effective potential of the tensor perturbation will have an abundant inner structure with multi-wells, and this will lead to new phenomena of the gravitational resonances.
description: 16 pages, 26 figures
Convenient Synthesis of Novel N-Acylsulfonamides Containing Phosphonate Moiety
Creators: name: Wahida Boufas
name: Hadjer Cheloufi
name: Bouchareb, Fouzia
name: Berredjem, Malika
name: Aouf, Nour-Eddine
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Science Policy
subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Cell Biology
subject: Microbiology
subject: FOS: Biological sciences

description: The present study describes a convenient method for the synthesis of new N-acylsulfonamides containing phosphonate moiety. The N-acylsulfonamides were prepared starting from chlorosulfonyl isocyanate (CSI) in four steps (carbamoylation, sulfamoylation, deprotection and acylation). Trimethylphosphite has been used to introduce the phosphonate moiety into N-acylsulfonamides via Arbuzov reaction.
Smart graphene enabled preforms
Creators: name: Reghat, M.
name: Hameed, Nishar
name: Hyde, Lachlan
name: Middendorf, P.
name: Bjekovic, R.
name: Fox, Bronwyn
name: Weizman, Udi
name: Tan, Adin
name: Fuss, Franz
Publisher: name: Swinburne
Year: 2024

description: The carbon fiber (CF) preforming process is one of the rate-limiting steps in composite manufacturing. Lack of control over the raw materials during the preforming process leads to inconsistent production. Batch-to-batch variations are unavoidable as molding environments remain undetected during the preforming process especially during the stacking up of the fabric plies and placing of the fabric preform into the mold cavity. This study aims to create high-quality composites structural parts made from CF performs and establish an understanding of the use of graphene nano-platelets (GNPs) as a smart fabric coating that allows the sensing and monitoring of the preforming process. In addition to the preform monitoring the mechanical reinforcing by graphene imparts additional functionality into the cured composite part. The ultimate outcome of this study will be an inexpensive, reliable way to manufacture highly uniform CF preforms.
Intuition in creative film editing practice: using phenomenology to explain editing as an embodied experience
Creators: name: Holt, Jillian
Publisher: name: Swinburne
Year: 2024

description: Intuition has long been associated with creativity in editing but not easily explained when it comes to unravelling the editor's creative process. An editor's physiological and cognitive response to the film material they work with plays a significant role in developing a rhythmic storytelling technique and style that is ‘right’ for the film. Creative film editing practice is a major focus of my research and the inspiration in developing the education resource, The Art of Editing: Australian Screen Editors Discuss Creativity in Editing (2015). As much as I draw on interviews from this resource, I will further investigate the source of the editor's intuitive process in reference to phenomenological film theory, specifically the work of Vivian Sobchack and Jennifer Barker, who explore the embodiment of film. Both Sobchack and Barker argue the ‘body of the spectator’ and the ‘body of the film’ as reciprocal to the ‘existential act of viewing’. As such, a phenomenological film theory that moves beyond the confines of critical film studies to one that embraces the ‘act of viewing’ resonates with the editor's intuitive process as the ‘first audience of the film’ which has a direct impact in shaping the audience's embodied experience of a film.
Measurement of spatial and temporal variation in volatile hazardous air pollutants in Tacoma, Washington, using a mobile membrane introduction mass spectrometry (MIMS) system
Creators: name: Fitzpatrick, Cole T.E.
name: Larson, Timothy V.
name: Yost, Michael G.
name: Davey, Nicholas G.
name: Etzkorn, Jacob M.
name: Martinsen, Morten
name: Crampton, Robert S.
name: Onstad, Gretchen D.
name: Krogh, Erik T.
name: Gilroy, Michael
name: Himes, Kathy H.
name: Saganić, Erik T.
name: Simpson, Christopher D.
name: Gill, Christopher G.
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorized

description: The objective of this study was to use membrane introduction mass spectrometry (MIMS), implemented on a mobile platform, in order to provide real-time, fine–scale, temporally and spatially resolved measurements of several hazardous air pollutants. This work is important because there is now substantial evidence that fine-scale spatial and temporal variations of air pollutant concentrations are important determinants of exposure to air pollution and adverse health outcomes. The study took place in Tacoma, WA during periods of impaired air quality in the winter and summer of 2008 and 2009. Levels of fine particles were higher in winter compared to summer, and were spatially uniform across the study area. Concentrations of vapor phase pollutants measured by membrane introduction mass spectrometry (MIMS), notably benzene and toluene, had relatively uniform spatial distributions at night, but exhibited substantial spatial variation during the day—daytime levels were up to 3-fold higher at traffic-impacted locations compared to a reference site. Although no direct side-by-side comparison was made between the MIMS system and traditional fixed site monitors, the MIMS system typically reported higher concentrations of specific VOCs, particularly benzene, ethylbenzene and naphthalene, compared to annual average concentrations obtained from SUMA canisters and gas chromatographic analysis at the fixed sites.
Laporan Praktik Kerja Lapangan (PKL) Botani Tumbuhan Tinggi ( Kelompok 3)
Creators: name: Banna, Nida Zahra Al
name: Galuh Sya'banunisa EMT
name: Miftahur Rahmah
name: Emil, Nur
name: Lathifah, Nurul
name: Suaidah
Publisher: name: Zenodo
Year: 2020

description: Assalamualaikum...ini perwakilan dari kelompok 3 mengumpulkan Laporan Praktik Kerja Lapangan Botani Tumbuhan Tinggi (Laporan PKL BTT) di Mandikapau Terima Kasih...
A Policy Framework for Subject-Driven Data Sharing
Creators: name: Chowdhury, Mohammad Jabed Morshed
name: Colman, Alan
name: Han, Jun
name: Kabir, Muhammad Ashad
Publisher: name: Swinburne
Year: 2024

description: Organizations (e.g., hospitals, university etc.) are custodians of data on their clients and use this information to improve their service. Personal data of an individual therefore ends up hosted under the administration of different data custodians. Individuals (data subjects) may want to share their data with others for various reasons. However, existing data sharing mechanisms provided by the data custodians do not provide individuals enough flexibility to share their data, especially in a cross-domain (data custodian) environment. In this paper, we propose a data sharing policy language and related framework for a data subject to capture their fine-grained data sharing requirements. This proposed language allows the data subject to define data sharing policies that consider context conditions, privacy obligations and re-sharing restrictions. Furthermore, we have implemented a prototype to demonstrate how data subjects can define their data sharing policies and how the policies can be used and enforced at runtime.
Estimating children's exposure to toxic elements in contaminated toys and children's jewelry via saliva mobilization
Creators: name: Guney, Mert
name: Nguyen, Alain
name: Zagury, Gerald J.
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorized

description: Children's potential for exposure to potentially toxic elements in contaminated jewelry and toys via mouth contact has not yet been fully evaluated. Various toys and jewelry (metallic toys and jewelry [MJ], plastic toys, toys with paint or coating, and brittle/pliable toys; n = 32) were tested using the saliva extraction (mouthing) compartment of the DIN and RIVM bioaccessibility protocols to assess As, Ba, Cd, Cr, Cu, Mn, Ni, Pb, Sb, and Se mobilization via saliva. Total concentrations of As, Cd, Cu, Ni, Pb, and Sb were found elevated in analyzed samples. Four metals were mobilized to saliva from 16 MJ in significant quantities (>1 μg for highly toxic Cd and Pb, >10 μg for Cu and Ni). Bioaccessible concentrations and hazard index values for Cd exceeded limit values, for young children between 6 mo- and 3 yr-old and according to both protocols. Total and bioaccessible metal concentrations were different and not always correlated, encouraging the use of bioaccessibility for more accurate hazard assessments. Bioaccessibility increased with increasing extraction time. Overall, the risk from exposure to toxic elements via mouthing was high only for Cd and for MJ. Further research on children's exposure to toxic elements following ingestion of toy or jewelry material is recommended.
Localization of defects via residence time measures
Creators: name: Cirillo, Emilio N. M.
name: Ciallella, Alessandro
name: Vantaggi, Barbara
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We show that residence time measure can be used to identify the geometrical and transmission properties of a defect along a path. The model we study is based on a one--dimensional simple random walk. The sites of the lattice are regular, i.e., the jumping probabilities are the same in each site, except for a site, called \emph{defect}, where the jumping probabilities are different. At each side of the lattice an absorbing site is present. We show that by measuring the fraction of particles crossing the channel and/or the typical time they need to cross it, it is possible to identify the main features of the lattice and of the defect site, namely, the jumping probabilities at regular and at the defect sites and the position of the defect in the lattice.
Research software, the US Research Software Association (US-RSE) & the Research Software Alliance (ReSA)
Creators: name: Katz, Daniel S.
Publisher: name: Zenodo
Year: 2024

description: A talk about research software, US-RSE and the Research Software Alliance (ReSA), presented 11 July 2024 to the OPEN (Operations, Promotion, Education, and Networking) Working Group of NIH's National Cancer Institute (NCI)'s Informatics Technology for Cancer Research (ITCR)US-RSE is a community-driven effort that brings together people who write and contribute to research software within the US. See https://us-rse.org/ for more information on US-RSE. The mission of ReSA is to advance the research software ecosystem by collaborating with decision makers and key influencers. See https://www.researchsoft.org/ for more information on ReSA.
Sparse alternatives to ridge regression: a random effects approach
Creators: name: Arief Gusnanto
name: Yudi Pawitan
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: Science Policy
subject: Cancer
subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Earth and Environmental Sciences

description: In a calibration of near-infrared (NIR) instrument, we regress some chemical compositions of interest as a function of their NIR spectra. In this process, we have two immediate challenges: first, the number of variables exceeds the number of observations and, second, the multicollinearity between variables are extremely high. To deal with the challenges, prediction models that produce sparse solutions have recently been proposed. The term ‘sparse’ means that some model parameters are zero estimated and the other parameters are estimated naturally away from zero. In effect, a variable selection is embedded in the model to potentially achieve a better prediction. Many studies have investigated sparse solutions for latent variable models, such as partial least squares and principal component regression, and for direct regression models such as ridge regression (RR). However, in the latter, it mainly involves an L1 norm penalty to the objective function such as lasso regression. In this study, we investigate new sparse alternative models for RR within a random effects model framework, where we consider Cauchy and mixture-of-normals distributions on the random effects. The results indicate that the mixture-of-normals model produces a sparse solution with good prediction and better interpretation. We illustrate the methods using NIR spectra datasets from milk and corn specimens.
Measurement of spatial and temporal variation in volatile hazardous air pollutants in Tacoma, Washington, using a mobile membrane introduction mass spectrometry (MIMS) system
Creators: name: Fitzpatrick, Cole T.E.
name: Larson, Timothy V.
name: Yost, Michael G.
name: Davey, Nicholas G.
name: Etzkorn, Jacob M.
name: Martinsen, Morten
name: Crampton, Robert S.
name: Onstad, Gretchen D.
name: Krogh, Erik T.
name: Gilroy, Michael
name: Himes, Kathy H.
name: Saganić, Erik T.
name: Simpson, Christopher D.
name: Gill, Christopher G.
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorised

description: The objective of this study was to use membrane introduction mass spectrometry (MIMS), implemented on a mobile platform, in order to provide real-time, fine–scale, temporally and spatially resolved measurements of several hazardous air pollutants. This work is important because there is now substantial evidence that fine-scale spatial and temporal variations of air pollutant concentrations are important determinants of exposure to air pollution and adverse health outcomes. The study took place in Tacoma, WA during periods of impaired air quality in the winter and summer of 2008 and 2009. Levels of fine particles were higher in winter compared to summer, and were spatially uniform across the study area. Concentrations of vapor phase pollutants measured by membrane introduction mass spectrometry (MIMS), notably benzene and toluene, had relatively uniform spatial distributions at night, but exhibited substantial spatial variation during the day—daytime levels were up to 3-fold higher at traffic-impacted locations compared to a reference site. Although no direct side-by-side comparison was made between the MIMS system and traditional fixed site monitors, the MIMS system typically reported higher concentrations of specific VOCs, particularly benzene, ethylbenzene and naphthalene, compared to annual average concentrations obtained from SUMA canisters and gas chromatographic analysis at the fixed sites.
Estimating children's exposure to toxic elements in contaminated toys and children's jewelry via saliva mobilization
Creators: name: Guney, Mert
name: Nguyen, Alain
name: Zagury, Gerald J.
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorised

description: Children's potential for exposure to potentially toxic elements in contaminated jewelry and toys via mouth contact has not yet been fully evaluated. Various toys and jewelry (metallic toys and jewelry [MJ], plastic toys, toys with paint or coating, and brittle/pliable toys; n = 32) were tested using the saliva extraction (mouthing) compartment of the DIN and RIVM bioaccessibility protocols to assess As, Ba, Cd, Cr, Cu, Mn, Ni, Pb, Sb, and Se mobilization via saliva. Total concentrations of As, Cd, Cu, Ni, Pb, and Sb were found elevated in analyzed samples. Four metals were mobilized to saliva from 16 MJ in significant quantities (>1 μg for highly toxic Cd and Pb, >10 μg for Cu and Ni). Bioaccessible concentrations and hazard index values for Cd exceeded limit values, for young children between 6 mo- and 3 yr-old and according to both protocols. Total and bioaccessible metal concentrations were different and not always correlated, encouraging the use of bioaccessibility for more accurate hazard assessments. Bioaccessibility increased with increasing extraction time. Overall, the risk from exposure to toxic elements via mouthing was high only for Cd and for MJ. Further research on children's exposure to toxic elements following ingestion of toy or jewelry material is recommended.
Root subgroups on affine spherical varieties
Creators: name: Arzhantsev, Ivan
name: Avdeev, Roman
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14R20, 14M27, 14M25, 13N15

description: Given a connected reductive algebraic group $G$ and a Borel subgroup $B \subseteq G$, we study $B$-normalized one-parameter additive group actions on affine spherical $G$-varieties. We establish basic properties of such actions and their weights and discuss many examples exhibiting various features. We propose a construction of such actions that generalizes the well-known construction of normalized one-parameter additive group actions on affine toric varieties. Using this construction, for every affine horospherical $G$-variety $X$ we obtain a complete description of all $G$-normalized one-parameter additive group actions on $X$ and show that the open $G$-orbit in $X$ can be connected with every $G$-stable prime divisor via a suitable choice of a $B$-normalized one-parameter additive group action. Finally, when $G$ is of semisimple rank $1$, we obtain a complete description of all $B$-normalized one-parameter additive group actions on affine spherical $G$-varieties having an open orbit of a maximal torus $T \subseteq B$.
description: v3: 31 pages, revised according to the referee's suggestions, numbering of sections changed
SmartArm: Suturing Feasibility of a Surgical Robotic System on a Neonatal Chest Model
Creators: name: Marinho, Murilo M.
name: Harada, Kanako
name: Deie, Kyoichi
name: Ishimaru, Tetsuya
name: Mitsuishi, Mamoru
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Commercially available surgical-robot technology currently addresses many surgical scenarios for adult patients. This same technology cannot be used to the benefit of neonate patients given the considerably smaller workspace. Medically relevant procedures regarding neonate patients include minimally invasive surgery to repair congenital esophagus disorders, which entail the suturing of the fragile esophagus within the narrow neonate cavity. In this work, we explore the use of the SmartArm robotic system in a feasibility study using a neonate chest and esophagus model. We show that a medically inexperienced operator can perform two-throw knots inside the neonate chest model using the robotic system.
description: Accepted on T-MRB 2021, 4 pages
A generalization of the Brown-Halmos theorems for the unit ball
Creators: name: Le, Trieu
name: Tikaradze, Akaki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Functional Analysis (math.FA)
subject: Complex Variables (math.CV)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 47B35, 32A36

description: In this paper we generalize the classical theorems of Brown and Halmos about algebraic properties of Toeplitz operators to Bergman spaces over the unit ball in several complex variables. A key result, which is of independent interest, is the characterization of summable functions $u$ on the unit ball whose Berezin transform can be written as a finite sum $\sum_{j}f_j\,\bar{g}_j$ with all $f_j, g_j$ being holomorphic. In particular, we show that such a function must be pluriharmonic if it is sufficiently smooth and bounded. We also settle an open question about $\mathcal{M}$-harmonic functions. Our proofs employ techniques and results from function and operator theory as well as partial differential equations.
description: In this version, we generalized our previous results to weighted Bergman spaces with standard weight $(1-|z|^2)^{\gamma}$, where $\gamma$ is an integer. 27 pages; reviewer's comments and suggestions incorporated
Anurans from the Early–Middle Miocene Santa Cruz Formation at Río Chalía (Patagonia, Argentina), and a revision of the fossil Calyptocephalellidae (Anura: Australobatrachia)
Creators: name: Muzzopappa, Paula
name: Bargo, M. Susana
name: Vizcaíno, Sergio F.
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Medicine
subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified

description: A large number of vertebrate fossils has been collected from the outcrops of the Early–Middle Miocene Santa Cruz Formation (SCF) along the Río Chalía in southern Patagonia, Argentina. The analysis of the anuran components reveals the coexistence of two Calyptocephalella species as the only frog inhabitants of the Santacrucian fauna, one of them especially large and abundant. Amongst the hundreds of anuran fossil remains, many provided relevant anatomical data to identify new characters to emend the diagnosis of Calyptocephalella, and to reconsider the taxonomic status of the largely controversial ‘Gigantobatrachus’ parodii. The latter is herein definitively recognized as part of Calyptocephalella, C. parodii stat. rev. et comb. nov. Also, a new genus, Xerocephalella gen. nov., is erected to accommodate two species that were formerly included within Calyptocephalella but lack some characters of the temporal region in the skull, herein included in the diagnosis of this genus. The SCF was deposited during an interval that spans a climatic episode, the Miocene Climatic Optimum, and the fossil record reflects the faunal variations associated with climatic/environmental changes that occurred during this period. The sympatric presence of the anurans Calyptocephalella parodii stat. rev. et comb. nov. and C. cf. C. canqueli at the lower levels of the unit and the presence of only one of them in the uppermost levels suggests a declining trend of the lineage through the Miocene, a decline that resulted in the extinction of Calyptocephalella east of the Andes. https://zoobank.org/urn:lsid:zoobank.org:pub:E88E703A-FF2C-4981-B1E1-3B9D46FE8019
Many-body localization in large systems: Matrix-product-state approach
Creators: name: Doggen, Elmer V. H.
name: Gornyi, Igor V.
name: Mirlin, Alexander D.
name: Polyakov, Dmitry G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent developments in matrix-product-state (MPS) investigations of many-body localization (MBL) are reviewed, with a discussion of benefits and limitations of the method. This approach allows one to explore the physics around the MBL transition in systems much larger than those accessible to exact diagonalization. System sizes and length scales that can be controllably accessed by the MPS approach are comparable to those studied in state-of-the-art experiments. Results for 1D, quasi-1D, and 2D random systems, as well as 1D quasi-periodic systems are presented. On time scales explored (up to $t \approx 300$ in units set by the hopping amplitude), a slow, subdiffusive transport in a rather broad disorder range on the ergodic side of the MBL transition is found. For 1D random spin chains, which serve as a "standard model" of the MBL transition, the MPS study demonstrates a substantial drift of the critical point $W_c(L)$ with the system size $L$: while for $L \approx 20$ we find $W_c \approx 4$, as also given by exact diagonalization, the MPS results for $L = 50$--100 provide evidence that the critical disorder saturates, in the large-$L$ limit, at $W_c \approx 5.5$. For quasi-periodic systems, these finite-size effects are much weaker, which suggests that they can be largely attributed to rare events. For quasi-1D ($d\times L$, with $d \ll L$) and 2D ($L\times L$) random systems, the MPS data demonstrate an unbounded growth of $W_c$ in the limit of large $d$ and $L$, in agreement with analytical predictions based on the rare-event avalanche theory.
description: 24 pages, 5 figures. Comments welcome
Hierarchical Width-Based Planning and Learning
Creators: name: Junyent, Miquel
name: Gómez, Vicenç
name: Jonsson, Anders
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Width-based search methods have demonstrated state-of-the-art performance in a wide range of testbeds, from classical planning problems to image-based simulators such as Atari games. These methods scale independently of the size of the state-space, but exponentially in the problem width. In practice, running the algorithm with a width larger than 1 is computationally intractable, prohibiting IW from solving higher width problems. In this paper, we present a hierarchical algorithm that plans at two levels of abstraction. A high-level planner uses abstract features that are incrementally discovered from low-level pruning decisions. We illustrate this algorithm in classical planning PDDL domains as well as in pixel-based simulator domains. In classical planning, we show how IW(1) at two levels of abstraction can solve problems of width 2. For pixel-based domains, we show how in combination with a learned policy and a learned value function, the proposed hierarchical IW can outperform current flat IW-based planners in Atari games with sparse rewards.