cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ultrasensitive Electrochemiluminescence Immunosensor Based on a Three-Dimensional Flower-Like Manganese Dioxide–Polyethyleneimine–Palladium Nanocomposite as the Signal Label for Detection of Avian Leukosis Virus Subgroup J
Creators: name: Zhou, Mengqi
name: Ning, Shixue
name: Liu, Jie
name: Waterhouse, Geoffrey I.N
name: Li, Li
name: Dong, Jing
name: Ai, Shiyun
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Plant Biology
subject: FOS: Biological sciences
subject: Virology

description: A novel sandwich-type electrochemiluminescence (ECL) immunosensor was successfully fabricated for the ultrasensitive detection of avian leukosis virus subgroup J (ALV-J). The immunosensor used a glassy carbon electrode decorated with gold nanoparticles (Au NPs), primary antibodies (Ab1) and bovine serum albumin as the sensor platform. For the signal label, three-dimensional flower-like MnO2 clusters modified with polyethyleneimine and palladium nanoparticles (MnO2–PEI–Pd nanocomposite) were used as the novel carrier of Ru(bpy)3Cl2 and secondary antibodies (Ab2). Under optimal conditions, the ECL immunosensor offered a linear relationship between the ECL signal and the logarithm of the ALV-J concentration in the range from 101.98 to 104.30 TCID50/mL with a detection limit of 101.90 TCID50/mL (based upon a signal-to-noise ratio of 3). In addition, the immunosensor showed excellent stability, selectivity and reproducibility, thus offering an effective tool for the quantitative detection of ALV-J in clinical applications.
Supplemental Figure 2: Protein concentration noise at the middle of the cell cycle from Division rate, cell size and proteome allocation: impact on gene expression noise and implications for the dynamics of genetic circuits
Creators: name: Bertaux, François
name: Marguerat, Samuel
name: Shahrezaei, Vahid
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: 60114 Systems Biology
subject: FOS: Biological sciences
subject: 60113 Synthetic Biology
subject: Computational Biology

description: Same as Figure 2-C except that the concentration noise is computed for cells at the middle of their cell cycle.
Backprop as Functor: A compositional perspective on supervised learning
Creators: name: Fong, Brendan
name: Spivak, David I.
name: Tuyéras, Rémy
Publisher: name: arXiv
Year: 2017
Subjects: subject: Category Theory (math.CT)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: A supervised learning algorithm searches over a set of functions $A \to B$ parametrised by a space $P$ to find the best approximation to some ideal function $f\colon A \to B$. It does this by taking examples $(a,f(a)) \in A\times B$, and updating the parameter according to some rule. We define a category where these update rules may be composed, and show that gradient descent---with respect to a fixed step size and an error function satisfying a certain property---defines a monoidal functor from a category of parametrised functions to this category of update rules. This provides a structural perspective on backpropagation, as well as a broad generalisation of neural networks.
description: 13 pages + 4 page appendix
РАЗВИТИЕ МЕДИКО-ЭКОЛОГИЧЕСКОГО ТУРИЗМА ДЛЯ ИНВАЛИДОВ И ЛЮДЕЙ С ОГРАНИЧЕННЫМИ ВОЗМОЖНОСТЯМИ ЗДОРОВЬЯ В РЯЗАНСКОЙ ОБЛАСТИ
Creators: name: В. В. Черная
name: Б. И. Кочуров
name: В. П. Чижова
name: Н. И. Кулакова
name: В. Д. Гасымов
Publisher: name: Проблемы региональной экологии
Year: 2019
Subjects: медико-экологический туризм
инклюзия
лица с ограниченными возможностями здоровья
инвалиды

description: Статья посвящена проблемам и перспективам развития медико-экологического туризма для людей с ограниченными возможностями и инвалидов. Впервые был обобщен и проведен анализ развития экологического туризма для людей с ограниченными возможностями и инвалидов в РФ и проанализирован потенциал Рязанской области для развития этого направления сферы услуг. Данные исследования могут быть использованы для развития в регионах РФ и Рязанской области медико-экологического туризма для людей с ограниченными возможностями и инвалидов, подготовки информационных материалов в адрес профильных управлений и министерств региона и муниципалитетов. Результаты осуществления авторских предложений инновационны и абсолютно тиражируемы. В Рязанском регионе для осуществления пилотного проекта в целях медико-экологического туризма и социально-трудовой инклюзии должен стать историко-культурный, природно-ландшафтный музей-заповедник усадьба С. Н. Худекова.
Observation of CPT for the ground hyperfine interval in $^{133}$Cs
Creators: name: Khan, Sumanta
name: Bharti, Vineet
name: Natarajan, Vasant
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We use the technique of coherent population trapping (CPT) to access the ground hyperfine interval (clock transition) in $^{133}$Cs. The probe and control beams required for CPT are obtained from a single compact diode laser system. The phase coherence between the beams, whose frequency difference is the clock frequency, is obtained by frequency modulating the laser with an electro-optic modulator (EOM). The EOM is fiber coupled and hence does not require alignment, and the atoms are contained in a vapor cell. Both of these should prove advantageous for potential use as atomic clocks in satellites.
description: 11 pages, 7 figures
Collapse and Nonlinear Instability of AdS with Angular Momenta
Creators: name: Choptuik, Matthew W.
name: Dias, Oscar J. C.
name: Santos, Jorge E.
name: Way, Benson
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a numerical study of rotational dynamics in AdS$_5$ with equal angular momenta in the presence of a complex doublet scalar field. We determine that the endpoint of gravitational collapse is a Myers-Perry black hole for high energies and a hairy black hole for low energies. We investigate the timescale for collapse at low energies $E$, keeping the angular momenta $J\propto E$ in AdS length units. We find that the inclusion of angular momenta delays the collapse time, but retains a $t\sim1/E$ scaling. We perturb and evolve rotating boson stars, and find that boson stars near AdS appear stable, but those sufficiently far from AdS are unstable. We find that the dynamics of the boson star instability depend on the perturbation, resulting either in collapse to a Myers-Perry black hole, or development towards a stable oscillating solution.
High-power closed-cycle $^4$He cryostat with top-loading sample exchange
Creators: name: Piegsa, F. M.
name: Brandt, B. van den
name: Kirch, K.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We report on the development of a versatile cryogen-free laboratory cryostat based upon a commercial pulse tube cryocooler. It provides enough cooling power for continuous recondensation of circulating $^4$He gas at a condensation pressure of approximately 250~mbar. Moreover, the cryostat allows for exchange of different cryostat-inserts as well as fast and easy "wet" top-loading of samples directly into the 1 K pot with a turn-over time of less than 75~min. Starting from room temperature and using a $^4$He cryostat-insert, a base temperature of 1.0~K is reached within approximately seven hours and a cooling power of 250~mW is established at 1.24~K.
Fano resonance via bonding and antibonding states in nonadiabatically-pumped double-quantum-well systems
Creators: name: Cai, Cong
name: Zhu, Rui
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this work, transport properties of the nonadiabatically pumped double-quantum-well (DQW) structure are studied. Different from a single quantum well, band mixing in the DQW generates bonding and antibonding states, whose wave functions have different spatial symmetry. By applying a time-dependent electric potential to the two well regions simultaneously, Floquet sidebands are formed, which constitutes additional quantum tunneling paths. When one of the Floquet sidebands coincides with the bonding or antibonding quasibound states within the DQW structure, sharp Fano resonances are found in the transmission coefficients as well as in the differential shot noise spectra. While such Fano resonances originate from quantum interference, their shapes are strikingly different for transport via the bonding state and via the antibonding state. The Fano resonance via the even-parity bonding state shows a perfect transmission followed by a total reflection and the Fano resonance via the odd-parity antibonding state has a reversed symmetry and shows a total reflection before a perfect transmission.
Additional tables, figures, and methods from A framework for estimating the determinants of spatial and temporal variation in vital rates and inferring the occurrence of unobserved extreme events
Creators: name: Vincenzi, Simone
name: Dušan Jesenšek
name: Crivelli, Alain J.
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: We develop a general framework that combines long-term tag–recapture data and powerful statistical and modelling techniques to investigate how population, environmental and climate factors determine variation in vital rates and population dynamics in an animal species, using as a case study the population of brown trout living in Upper Volaja (Western Slovenia). This population has been monitored since 2004. Upper Volaja is a sink, receiving individuals from a source population living above a waterfall. We estimate the numerical contribution of the source population on the sink population and test the effects of temperature, population density and extreme events on variation in vital rates among 2647 individually tagged brown trout. We found that individuals dispersing downstream from the source population help maintain high population densities in the sink population despite poor recruitment. The best model of survival for individuals older than juveniles includes additive effects of birth cohort and sampling occasion. Fast growth of older cohorts and higher population densities in 2004–2005 suggest very low population densities in the late 1990s, which we hypothesize were caused by a flash flood that strongly reduced population size and created the habitat conditions for faster individual growth and transient higher population densities after the extreme event.
Additional file 1 of Tandem gene duplications drive divergent evolution of caffeine and crocin biosynthetic pathways in plants
Creators: name: Xu, Zhichao
name: Pu, Xiangdong
name: Gao, Ranran
name: Demurtas, Olivia Costantina
name: Fleck, Steven J.
name: Richter, Michaela
name: He, Chunnian
name: Ji, Aijia
name: Sun, Wei
name: Kong, Jianqiang
name: Hu, Kaizhi
name: Ren, Fengming
name: Song, Jiejie
name: Wang, Zhe
name: Gao, Ting
name: Xiong, Chao
name: Yu, Haoying
name: Xin, Tianyi
name: Albert, Victor A.
name: Giuliano, Giovanni
name: Chen, Shilin
name: Song, Jingyuan
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1. Detailed methods and results for genome sequencing.
How Housing Affordability Concerns Affect Attitudes towards Immigrants
Creators: name: Lee, Boyoon
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Political Science
subject: FOS: Political science
subject: Social and Behavioral Sciences
subject: Anti-immigrant attitudes
subject: Housing market affordability
subject: Immigrant discrimination in housing market

description: Previous studies looking at the role of economic factors in explaining natives' attitudes towards immigrants have posited that natives oppose immigrants because they fear losing material well-being of individuals or one's group. This paper extends this economic approach to explain immigration attitudes by focusing on whether and how perceived housing market hardship affects natives' attitudes towards immigrants. I argue that concerns over immigrants' impact on the housing market may induce increased hostility towards immigrants. This is because natives view the incoming migrants as culprits for increasing housing prices and thus blame for the worsening housing market situation. To test the implications of my argument, I examine the following factors that are expected to influence attitudes towards immigrants in the United States: (1) perception of immigrants' housing market impacts, (2) media framing effect, (3) local housing market contexts, (4) levels of wealth and income, and (5) perceptions about housing. This pre-analysis plan explains the design and details of the survey experiment part of this project.
How do elements really factor in $\mathbb{Z}[\sqrt{-5}]$?
Creators: name: Chapman, Scott T.
name: Gotti, Felix
name: Gotti, Marly
Publisher: name: arXiv
Year: 2017
Subjects: subject: History and Overview (math.HO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: Primary: 11R11, 13F15, 20M13

description: Most undergraduate level abstract algebra texts use $\mathbb{Z}[\sqrt{-5}]$ as an example of an integral domain which is not a unique factorization domain (or UFD) by exhibiting two distinct irreducible factorizations of a nonzero element. But such a brief example, which requires merely an understanding of basic norms, only scratches the surface of how elements actually factor in this ring of algebraic integers. We offer here an interactive framework which shows that while $\mathbb{Z}[\sqrt{-5}]$ is not a UFD, it does satisfy a slightly weaker factorization condition, known as half-factoriality. The arguments involved revolve around the Fundamental Theorem of Ideal Theory in algebraic number fields.
description: 25 pages
Additional file 2 of miR-126-3p-loaded small extracellular vesicles secreted by urine-derived stem cells released from a phototriggered imine crosslink hydrogel could enhance vaginal epithelization after vaginoplasty
Creators: name: Xu, Yiyun
name: Qiu, Yu
name: Lin, Qiuning
name: Huang, Chengsheng
name: Li, Jie
name: Chen, Liqi
name: Xue, Zhuowei
name: Wu, Qingkai
name: Wang, Yang
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Additional file 2: Fig. S1. Histology of normal vaginal tissue. A IF staining for AE1/AE3. Scale bar: 25 µm. B The thickness of epithelium in normal vagina was 19.75 ± 5.23 µm.
Parent-Adolescent communication dynamics
Creators: name: Vreeker, Annabel
name: Keijsers, Loes
name: Bülow, Anne
name: Boele, Savannah
Publisher: name: OSF Registries
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: ADAPT
subject: DSEM
subject: ESM
subject: Experience Sampling
subject: N=1
subject: adolescent
subject: daily diary
subject: delinquency
subject: depression
subject: disclosure
subject: ecological momentary assesment
subject: monitoring
subject: parenting

description: Preregistration of empirical study. Hypotheses can be found in the attached document.
Lepton mass effects and angular observables in $Λ_b \to Λ(\to p π) \ell^+\ell^-$
Creators: name: Roy, Shibasis
name: Sain, Ria
name: Sinha, Rahul
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The flavor changing rare decay $B\to K^{*}(\to Kπ)\ell^+\ell^-$ is one of the most studied modes due to its sensitivity to physics beyond the standard model and several discrepancies have come to light among the plethora of observables that are measured. In this paper we revisit the analogous baryonic decay mode $Λ_{b}\rightarrow Λ(\to pπ) \ell^{+}\ell^{-}$ and we present a complete set of ten angular observables that can be measured using this decay mode. Our calculations are done retaining the finite lepton mass so that the signal of lepton non-universality observed in $B\to K^{*} \ell^+\ell^-$ can be corroborated by the corresponding baryonic decay mode. We show that due to the parity violating nature of the subsequent $Λ\to pπ$ decay there exist at least one angular asymmetry that is non-vanishing in the large recoil limit unlike the case in $B\to K^{*}\ell^+\ell^-$ decay mode, making it particularly sensitive to new physics that violates lepton flavor universality.
description: Typos corrected, matches published version
Titles and legends from A framework for estimating the determinants of spatial and temporal variation in vital rates and inferring the occurrence of unobserved extreme events
Creators: name: Vincenzi, Simone
name: Dušan Jesenšek
name: Crivelli, Alain J.
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: We develop a general framework that combines long-term tag–recapture data and powerful statistical and modelling techniques to investigate how population, environmental and climate factors determine variation in vital rates and population dynamics in an animal species, using as a case study the population of brown trout living in Upper Volaja (Western Slovenia). This population has been monitored since 2004. Upper Volaja is a sink, receiving individuals from a source population living above a waterfall. We estimate the numerical contribution of the source population on the sink population and test the effects of temperature, population density and extreme events on variation in vital rates among 2647 individually tagged brown trout. We found that individuals dispersing downstream from the source population help maintain high population densities in the sink population despite poor recruitment. The best model of survival for individuals older than juveniles includes additive effects of birth cohort and sampling occasion. Fast growth of older cohorts and higher population densities in 2004–2005 suggest very low population densities in the late 1990s, which we hypothesize were caused by a flash flood that strongly reduced population size and created the habitat conditions for faster individual growth and transient higher population densities after the extreme event.
Orbital-selective thermalization plateau in the mass imbalanced Hubbard model
Creators: name: Du, Liang
name: Huang, Li
name: Fiete, Gregory A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use time-dependent non-equilibrium dynamical mean-field theory with weak-coupling auxiliary-field continuous time quantum Monte Carlo as an impurity solver to study the thermalization behavior of the mass-imbalanced single-band Hubbard model after a quench of the Coulomb interaction from the non-interacting limit to a finite positive value. By contrast, when the Coulomb interaction in our model is increased under equilibrium conditions, the quasi-particle weight for spin-up and spin-down (the mass imbalance) electrons approach zero simultaneously, indicating the absence of an orbital selective Mott transition. Our out-of-equilibrium study suggests that there exists a time window where an orbital selective dynamical phase transition occurs. The dynamical phase transition is characterized by the relaxation behavior of energy (kinetic and Coulomb interaction) and the spin-resolved momentum-dependent occupation. To make connection with possible experiments, we calculate the spin-resolved two-time optical conductivity, which confirms the orbital-selective thermalization plateau. We find the time window for the orbital selective dynamical phase transition grows as the mass imbalance increases.
description: 8 pages, 8 figures
Polymorphic nature of {332} 〈 113 〉 twinning mode in BCC alloys
Creators: name: Kwasniak, P.
name: Sun, F.
name: Mantri, S.
name: Banerjee, R.
name: Prima, F.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Marine Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Unprecedented mechanical properties of the novel TWIP/TRIP titanium alloys are controlled by {332}<113> twinning and stress-induced martensitic transformation, which can operate separately, simultaneously or even in synergy, following a still unclear atomic-scale mechanism. Using ab initio calculations and experimental observations, we show that {332}<113> twinning can be described as a polymorphic solid-state transformation able to produce either twinned or martensitic structures with a unified transformation path. The required lattice strains and atomic shuffles are provided by the shear-shuffle mechanism of twin operation, of which trajectory, due to accompanied atomic relaxation, is not linear and strongly influenced by β phase stability. Plasticity of metastable alloys is extended by the concept of polymorphic deformation modes of which path is sensitive to the composition of the alloy, enabling stabilization of the intermediate transition states.
Composite boson signature in the interference pattern of atomic dimer condensates
Creators: name: Shiau, Shiue-Yuan
name: Chenu, Aurélia
name: Combescot, Monique
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We predict the existence of high frequency modes in the interference pattern of two condensates made of fermionic-atom dimers. These modes, which result from fermion exchanges between condensates, constitute a striking signature of the dimer composite nature. From the 2-coboson spatial correlation function, that we derive analytically, and the Shiva diagrams that visualize many-body effects specific to composite bosons, we identify the physical origin of these high frequency modes and determine the conditions to see them experimentally by using bound fermionic-atom pairs trapped on optical lattice sites. The dimer granularity which appears in these modes comes from Pauli blocking that prevents two dimers to be located at the same lattice site.
description: 10+7 pp, 3 figures. v2: version accepted for publication in New J. Phys
Linear stability of horizontal, laminar fully developed, quasi-two-dimensional liquid metal duct flow under a transverse magnetic field and heated from below
Creators: name: Vo, Tony
name: Sheard, Gregory J.
name: Pothérat, Alban
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This study considers the linear stability of Poiseuille-Rayleigh-Bénard flows, subjected to a transverse magnetic field to understand the instabilities that arise from the complex interaction between the effects of shear, thermal stratification and magnetic damping. This fundamental study is motivated in part by the desire to enhance heat transfer in the blanket ducts of nuclear fusion reactors. In pure MHD flows, the imposed transverse magnetic field causes the flow to become quasi-2D and exhibit disturbances that are localised to the horizontal walls. However, the vertical temperature stratification in Rayleigh-Bénard flows feature convection cells that occupy the interior region and therefore the addition of this aspect provides an interesting point for investigation. The linearised governing equations are described by the \qtwod\ model proposed by Sommeria and Moreau (1982) which incorporates a Hartmann friction term, and the base flows are considered fully developed and 1D. The neutral stability curves for critical Reynolds and Rayleigh numbers, $Re_c$ and $Ra_c$, respectively, as functions of Hartmann friction parameter $H$ have been obtained over $10^{-2}\leq H\leq10^4$. Asymptotic trends are observed as $H\rightarrow\infty$ following $Re_c\propto H^{\,1/2}$ and $Ra_c\propto H$. The linear stability analysis reveals multiple instabilities which alter the flow both within the Shercliff boundary layers and the interior flow, with structures consistent with features from plane Poiseuille and Rayleigh-Bénard flows.
title: Mother's Birthday
title: Ama bbu Jjogee
titleType: AlternativeTitle
title: 妈妈的生日
titleType: AlternativeTitle
Creators: name: Michaud, Alexis
name: Dobbs, Roselle
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Yongning Na
subject: nru
subject: Lataddi Narua

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
Vector SIMP dark matter
Creators: name: Choi, Soo-Min
name: Hochberg, Yonit
name: Kuflik, Eric
name: Lee, Hyun Min
name: Mambrini, Yann
name: Murayama, Hitoshi
name: Pierre, Mathias
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Strongly Interacting Massive Particles (SIMPs) have recently been proposed as light thermal dark matter relics. Here we consider an explicit realization of the SIMP mechanism in the form of vector SIMPs arising from an $SU(2)_X$ hidden gauge theory, where the accidental custodial symmetry protects the stability of the dark matter. We propose several ways of equilibrating the dark and visible sectors in this setup. In particular, we show that a light dark Higgs portal can maintain thermal equilibrium between the two sectors, as can a massive dark vector portal with its generalized Chern-Simons couplings to the vector SIMPs, all while remaining consistent with experimental constraints.
description: 27 pages, 5 figures, Published version
Characterization of performance and disinfection resilience of nonwoven filter materials for use in 3D-printed N95 respirators
Creators: name: O’Shaughnessy, Patrick T.
name: Strzelecki, Brian
name: Ortiz-Hernandez, Monica
name: Aubin, Patrick
name: Jing, Xuefang
name: Chang, Qing
name: Xiang, Jinhua
name: Thorne, Peter S.
name: Stapleton, Jack T.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: Biochemistry
Space Science
Medicine
Science Policy
Virology

description: The COVID-19 pandemic has caused a high demand for respiratory protection among health care workers in hospitals, especially surgical N95 filtering facepiece respirators (FFRs). To aid in alleviating that demand, a survey of commercially available filter media was conducted to determine whether any could serve as a substitute for an N95 FFR while held in a 3D-printed mask (Stopgap Surgical Face Mask from the NIH 3D Print Exchange). Fourteen filter media types and eight combinations were evaluated for filtration efficiency, breathing resistance (pressure drop), and liquid penetration. Additional testing was conducted to evaluate two filter media disinfection methods in the event that the filters were reused in a hospital setting. Efficiency testing was conducted in accordance with the procedures established for approving an N95 FFR. One apparatus used a filter-holding device and another apparatus employed a manikin head to which the 3D-printed mask could be sealed. The filter media and combinations exhibited collection efficiencies varied between 3.9% and 98.8% when tested with a face velocity comparable to that of a standard N95 FFR at the 85 L min−1 used in the approval procedure. Breathing resistance varied between 10.8 to >637 Pa (1.1 to > 65 mm H2O). When applied to the 3D-printed mask efficiency decreased by an average of 13% and breathing resistance increased 4-fold as a result of the smaller surface area of the filter media when held in that mask compared to that of an N95 FFR. Disinfection by dry heat, even after 25 cycles, did not significantly affect filter efficiency and reduced viral infectivity by > 99.9%. However, 10 cycles of 59% vaporized H2O2 significantly (p < 0.001) reduced filter efficiency of the media tested. Several commercially available filter media were found to be potential replacements for the media used to construct the typical cup-like N95 FFR. However, their use in the 3D-printed mask demonstrated reduced efficiency and increased breathing resistance at 85 L min−1.
From Heisenberg uniqueness pairs to properties of the Helmholtz and Laplace equations
Creators: name: Fernandez-Bertolin, Aingeru
name: Gröchenig, Karlheinz
name: Jaming, Philippe
Publisher: name: arXiv
Year: 2017
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Complex Variables (math.CV)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: The aim of this paper is to establish uniqueness properties of solutions of the Helmholtz and Laplace equations. In particular, we show that if two solutions of such equations on a domain of R d agree on two intersecting d -- 1-dimensional submanifolds in generic position, then they agree everywhere.
Konversi Data Biner 32 Bit Menjadi Desimal dengan Menggunakan Format IBM dan IEEE
Creators: name: Rizaldi, Muhammad
name: Mochamad Rheza
name: Riantoni, Frans
name: Virgiawan Listanto
name: Abi Mawalid
Publisher: name: figshare
Year: 2018
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: Komputer merupakan alat yang digunakan dalam melakukan sesuatu dalam mempermudah pekerjaan manusia. Komputer mengunakan bahasa pemograman dengan biner sedangkan manusia umumnya mengunakan sistem bahasa yang mengunakan desimal. Sehingga dibutuhkan konversi data biner ke desimal supaya pengguna dan komputer mengerti maksud dan tujuan dari perintah yang diberikan oleh penguna atau komputer. Seperti percobaan ini, konversi data biner 32-bit ke desimal dengan mengunakan metode pemisahan digit data biner yakni sign, exp, dan fraction. Dan hasil yang ditemukan merupakan bilangan desimal yang berbeda tergantung dengan format yang digunakan. Format yang ditemuka dalam program ini ialah format IBM dan IEEE.
HI Kinematics, Mass Distribution, and Star Formation Threshold in NGC 6822, using the SKA pathfinder KAT-7
Creators: name: Namumba, Brenda
name: Carignan, Claude
name: Passmoor, Sean
name: de Blok, Erwin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present high sensitivity HI observations of NGC 6822, obtained with the Karoo Array Telescope (KAT-7). We study the kinematics, the mass distribution, and the star formation thresholds. The KAT-7 short baselines and low system temperature make it sensitive to large-scale, low surface brightness emission. The observations detected $\sim$ 23$\%$ more flux than previous ATCA observations. We fit a tilted ring model to the HI velocity field to derive the rotation curve (RC). The KAT-7 observations allow the measurement of the rotation curve of NGC 6822 out to 5.8 kpc, $\sim$ 1 kpc further than existing measurements. NGC 6822 is seen to be dark matter dominated at all radii. The observationally motivated pseudo-isothermal dark matter (DM) halo model reproduces well the observed RC while the Navarro Frank-White DM model gives a poor fit to the data. We find the best fit mass to light ratio (M/L) of 0.12 $\pm$ 0.01 which is consistent with the literature. The Modified Newtonian Dynamics (MOND) gives a poor fit to our data. We derive the star formation threshold in NGC 6822 using the HI and H$α$ data. The critical gas densities were calculated for gravitational instabilities using the Toomre-Q criterion and the cloud-growth criterion. We found that in regions of star formation, the cloud-growth criterion explains star formation better than the Toomre-Q criterion. This shows that the local shear rate could be a key player in cloud formation for irregular galaxies such as NGC 6822.
Family History of a Seafaring Grandfather
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: William had a long record of service in several parts of the navy. He was originally in the Merchant Navy 1928-35, he was called up to the Royal Navy 1941-46, then finally served in the Royal Navy Volunteer Reserve 1946-67. William recorded his life and wartime experiences in a diary, which was subsequently reproduced by the family. After the war William was mentioned in dispatches for his seamanship in the Gulf of Aden in 1946.
Distance Descending Ordering Method: an $O(n)$ Algorithm for Inverting the Mass Matrix in Simulation of Macromolecules with Long Branches
Creators: name: Xu, Xiankun
name: Li, Peiwen
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Fixman's work in 1974 and the follow-up studies have developed a method that can factorize the inverse of mass matrix into an arithmetic combination of three sparse matrices---one of them is positive definite and need to be further factorized by using the Cholesky decomposition or similar methods. When the molecule subjected to study is of serial chain structure, this method can achieve $O(n)$ computational complexity. However, for molecules with long branches, Cholesky decomposition about the corresponding positive definite matrix will introduce massive fill-in due to its nonzero structure, which makes the calculation in scaling of $O(n^3)$. Although several methods have been used in factorizing the positive definite sparse matrices, no one could strictly guarantee for no fill-in for all molecules according to our test, and thus $O(n)$ efficiency cannot be obtained by using these traditional methods. In this paper we present a new method that can guarantee for no fill-in in doing the Cholesky decomposition, and as a result, the inverting of mass matrix will remain the $O(n)$ scaling, no matter the molecule structure has long branches or not.
A Very Heavy Sneutrino as Viable Thermal Dark Matter Candidate in $U(1)'$ Extensions of the MSSM
Creators: name: Ferreira, Felipe A. Gomes
name: Drees, Manuel
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the Standard Model singlet ("right-handed") sneutrino $\tilde ν_R$ dark matter in a class of $U(1)'$ extensions of the MSSM that originate from the breaking of the $E_6$ gauge group. These models, which are referred to as UMSSM, contain three right--handed neutrino superfields plus an extra gauge boson $Z'$ and an additional SM singlet Higgs with mass $\simeq M_{Z'}$, together with their superpartners. In the UMSSM the right sneutrino is charged under the extra $U(1)'$ gauge symmetry; it can therefore annihilate via gauge interactions. In particular, for $M_{\tilde ν_R} \simeq M_{Z'}/2$ the sneutrinos can annihilate by the exchange of (nearly) on--shell gauge or Higgs bosons. We focus on this region of parameter space. For some charge assignment we find viable thermal $\tilde ν_R$ dark matter for mass up to $\sim 43$ TeV. This is the highest mass of a good thermal dark matter candidate in standard cosmology that has so far been found in an explicit model. Our result can also be applied to other models of spin$-0$ dark matter candidates annihilating through the resonant exchange of a scalar particle. These models cannot be tested at the LHC, nor in present or near--future direct detection experiments, but could lead to visible indirect detection signals in future Cherenkov telescopes.
description: 29 pages, 6 figures, 1 table
Additional file 4 of Tandem gene duplications drive divergent evolution of caffeine and crocin biosynthetic pathways in plants
Creators: name: Xu, Zhichao
name: Pu, Xiangdong
name: Gao, Ranran
name: Demurtas, Olivia Costantina
name: Fleck, Steven J.
name: Richter, Michaela
name: He, Chunnian
name: Ji, Aijia
name: Sun, Wei
name: Kong, Jianqiang
name: Hu, Kaizhi
name: Ren, Fengming
name: Song, Jiejie
name: Wang, Zhe
name: Gao, Ting
name: Xiong, Chao
name: Yu, Haoying
name: Xin, Tianyi
name: Albert, Victor A.
name: Giuliano, Giovanni
name: Chen, Shilin
name: Song, Jingyuan
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Figure S27. Pasta phylogenetic tree of NMTs from different species.
Fast MCMC sampling algorithms on polytopes
Creators: name: Chen, Yuansi
name: Dwivedi, Raaz
name: Wainwright, Martin J.
name: Yu, Bin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We propose and analyze two new MCMC sampling algorithms, the Vaidya walk and the John walk, for generating samples from the uniform distribution over a polytope. Both random walks are sampling algorithms derived from interior point methods. The former is based on volumetric-logarithmic barrier introduced by Vaidya whereas the latter uses John's ellipsoids. We show that the Vaidya walk mixes in significantly fewer steps than the logarithmic-barrier based Dikin walk studied in past work. For a polytope in $\mathbb{R}^d$ defined by $n >d$ linear constraints, we show that the mixing time from a warm start is bounded as $\mathcal{O}(n^{0.5}d^{1.5})$, compared to the $\mathcal{O}(nd)$ mixing time bound for the Dikin walk. The cost of each step of the Vaidya walk is of the same order as the Dikin walk, and at most twice as large in terms of constant pre-factors. For the John walk, we prove an $\mathcal{O}(d^{2.5}\cdot\log^4(n/d))$ bound on its mixing time and conjecture that an improved variant of it could achieve a mixing time of $\mathcal{O}(d^2\cdot\text{polylog}(n/d))$. Additionally, we propose variants of the Vaidya and John walks that mix in polynomial time from a deterministic starting point. The speed-up of the Vaidya walk over the Dikin walk are illustrated in numerical examples.
description: 86 pages, 9 figures, First two authors contributed equally
Leucoxenols A and B, two new phenolics from Bornean medicinal plant Syzygium leucoxylon
Creators: name: Kamsirah Jim Shamsudin
name: Chin-Soon Phan
name: Kulip, Julius
name: Kishio Hatai
name: Vairappan, Charles Santhanaraju
name: Kamada, Takashi
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
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: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology
subject: 60506 Virology

description: The medicinal plant, Syzygium leucoxylon or commonly known as Obah found in North Borneo was considered as traditional medicine by local committee. Two new phenolics, leucoxenols A (1) and B (2) were isolated and identified as major secondary metabolites from the leaves of S. leucoxylon. Their chemical structures were elucidated based on spectroscopic data such as NMR and HRESIMS. Furthermore, these compounds were active against selected strains of fungi.
INFRAESTRUTURA E PROCESSO DE TRABALHO NA ATENÇÃO À SAÚDE: PROTOCOLO DE SCOPING REVIEW
Creators: name: Azevedo, Samir
name: Moreira, Thereza
name: Florêncio, Raquel
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: #health
subject: #healthvulnerability
subject: #infraestructure
subject: #situaçãoprogramática
subject: #vulnerabilidade
subject: #vulnerabilidadeprogramática
subject: #vulnerability
subject: #workprocess

description: Objetivo: Mapear aspectos da infraestrutura e do processo de trabalho que colocam o sujeito em situação de vulnerabilidade em saúde. Introdução: A vulnerabilidade é caracterizada por vários conceitos e subconceitos, dentre eles a infraestrutura dos serviços e o processo de trabalho. Acredita-se que esses aspectos interferem nos processos de diagnósticos, tratamento e cura de doenças agudas e crônicas, colocando os sujeitos em uma situação programática de vulnerabilidade em saúde. Critérios de inclusão: Os estudos serão textos do campo da saúde coletiva que abordem a infraestrutura e o processo de trabalho e o o conceito de vulnerabilidade em saúde. Serão excluídos estudos de revisão, teóricos, de caso, literatura cinza e estudos que estejam disponíveis apenas os resumos. Método: Os estudos serão pesquisados nas bases de dados IBECS, LILACS, CINAHL, BDENF e no portal PUBMED. Não haverá limites quanto ao idioma ou a países. O período de seleção dos estudos será o ano de 2020. A justificativa encontra-se no arquivo do protocolo. A exportação será feita para o software Zotero. A seleção desses estudos será feita a partir dos títulos e resumos por dois pesquisadores e após será feito a leitura na íntegra também por dois pesquisadores. Caso haja divergências, será feito reunião de consenso com um terceiro autor.
Universality of scanning tunneling microscopy in cuprate superconductors
Creators: name: Choubey, Peayush
name: Kreisel, Andreas
name: Berlijn, T.
name: Andersen, Brian M.
name: Hirschfeld, P. J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We consider the problem of local tunneling into cuprate superconductors, combining model based calculations for the superconducting order parameter with wavefunction information obtained from first principles electronic structure. For some time it has been proposed that scanning tunneling microscopy (STM) spectra do not reflect the properties of the superconducting layer in the CuO$_2$ plane directly beneath the STM tip, but rather a weighted sum of spatially proximate states determined by the details of the tunneling process. These "filter" ideas have been countered with the argument that similar conductance patterns have been seen around impurities and charge ordered states in systems with atomically quite different barrier layers. Here we use a recently developed Wannier function based method to calculate topographies, spectra, conductance maps and normalized conductance maps close to impurities. We find that it is the local planar Cu $d_{x^2-y^2}$ Wannier function, qualitatively similar for many systems, that controls the form of the tunneling spectrum and the spatial patterns near perturbations. We explain how, despite the fact that STM observables depend on the materials-specific details of the tunneling process and setup parameters, there is an overall universality in the qualitative features of conductance spectra. In particular, we discuss why STM results on Bi$_2$Sr$_2$CaCu$_2$O$_8$ and Ca$_{2-x}$Na$_x$CuO$_2$Cl$_2$ are essentially identical.
Additional file 1 of Exosomes from mmu_circ_0001052-modified adipose-derived stem cells promote angiogenesis of DFU via miR-106a-5p and FGF4/p38MAPK pathway
Creators: name: Liang, Zun-Hong
name: Pan, Nan-Fang
name: Lin, Shi-Shuai
name: Qiu, Zhi-Yang
name: Liang, Ping
name: Wang, Jun
name: Zhang, Zhi
name: Pan, Yun-Chuan
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Chemical Sciences not elsewhere classified
subject: Cancer

description: Additional file 1. The sequence of mmu_circ_0009139.
Lemaitre-Tolman-Bondi dust solutions in f(R) gravity
Creators: name: Sussman, Roberto A
name: Jaime, Luisa G
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We derive a class of non-static inhomogeneous dust solutions in f(R) gravity described by the Lemaitre-Tolman-Bondi (LTB) metric. The field equations are fully integrated for all parameter subcases and compared with analogous subcases of LTB dust solutions of GR. Since the solutions do not admit regular symmetry centres, we have two possibilities: (i) a spherical dust cloud with angle deficit acting as the source of a vacuum Schwarzschild-like solution associated with a global monopole, or (ii) fully regular dust wormholes without angle deficit, whose rest frames are homeomorphic to the Schwarzschild-Kruskal manifold or to a 3d torus. The compatibility between the LTB metric and generic f(R) ansatzes furnishes an "inverse procedure" to generate LTB solutions whose sources are found from the f(R) geometry. While the resulting fluids may have an elusive physical interpretation, they can be used as exact non--perturbative toy models in theoretical and cosmological applications of f(R) theories.
description: 17 pages. Version accepted for publication in Classical and Quantum Gravity. IOP LaTex format. Typos corrected, references added
The effect of trunk training on muscle thickness and muscle activity: a systematic review
Creators: name: Tamaya Van Criekinge
name: Truijen, Steven
name: Verbruggen, Chelsea
name: Venis, Lotte Van De
name: Saeys, Wim
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Science Policy

description: Objective: A systematic review to examine the effect of static or dynamic trunk training compared to standard care or control therapy on muscle activity and muscle thickness of the trunk and lower limb muscles in stroke survivors. Materials and methods: This review was registered on PROSPERO (no: CRD42017063771) and was written according to the PRISMA guidelines. The search strategy included studies from the first indexed article until September 2017 and was performed in the electronical databases PubMed, Web of Science, Cochrane Library, Ovid Medline and PEDro. Two independent reviewers screened, assessed risk of bias by means of the PEDro scale and extracted data. Results: Eight studies were included of which three investigated the effects of trunk training on muscle thickness, the remaining five investigated muscle activity. The following muscles were investigated: erector spinae, multifidi, paravertebralis, transversus abdominis, internal and external oblique abdominis, rectus abdominis, quadriceps femoris, hamstrings, soleus and tibialis anterior. Trunk exercises significantly improved the muscle activity of the internal oblique abdominis and increased muscle thickness of transversus abdominis. Conclusions: Trunk training is effective in restoring symmetry in muscle thickness to improve muscle strength. The gain in muscle thickness is specific to the applied exercise program, suggesting that therapeutic goal setting is of great importance. However, no conclusion could be made concerning changes in muscle activity due to a high risk of bias.Implications for rehabilitation:Trunk training seems to be effective in restoring symmetry in trunk muscle thickness.Not all muscle groups benefit from specific trunk exercises.Patients suffering from chronic stroke are still capable of restoring muscle function. Trunk training seems to be effective in restoring symmetry in trunk muscle thickness. Not all muscle groups benefit from specific trunk exercises. Patients suffering from chronic stroke are still capable of restoring muscle function.